Showing papers on "Drive wheel published in 2015"

Electric Motor Drives

Abstract: The drive is the electric motor, its controlling electronics, the speed reduction , and the driven wheel (solar racing cars usually have only one driven wheel). Figure 5.1 is a schematic of a typical drive connected to its solar-electric power source. This chapter discusses the operation of each of the drive’s components.

Impact of Mass and Weight Distribution on Manual Wheelchair Propulsion Torque

Abstract: Propulsion effort of manual wheelchairs, a major determinant of user mobility, is a function of human biomechanics and mechanical design. Human studies that investigate both variables simultaneously have resulted in largely inconsistent outcomes, motivating the implementation of a robotic propulsion system that characterizes the inherent mechanical performance of wheelchairs. This study investigates the impacts of mass and mass distribution on manual wheelchair propulsion by configuring an ultra-lightweight chair to two weights (12-kg and 17.6-kg) and two load distributions (70% and 55% on drive wheels). The propulsion torques of these four configurations were measured for a straight maneuver and a fixed-wheel turn, on both tile and carpet. Results indicated that increasing mass to 17.6-kg had the largest effect on straight acceleration, requiring 7.4% and 5.8% more torque on tile and carpet, respectively. Reducing the drive wheel load to 55% had the largest effect on steady-state straight motion and on both turning acceleration and steady-state turning; for tile and carpet, propulsion torque increased by 13.5% and 11.8%, 16.5% and 4.1%, 73% and 5.1%, respectively. These results demonstrate the robot's high sensitivity, and support the clinical importance of evaluating effects of wheelchair mass and axle position on propulsion effort across maneuvers and surfaces.

Jumbo size tubular product cutting device

Abstract: The utility model discloses a jumbo size tubular product cutting device, including the base, the equal rigid coupling in base bottom four corners has a stand, base left end rigid coupling has the mounting panel, and the chuck is installed to the mounting panel inboard, and it has a pivot to be equipped with jack catch and chuck left end rigid coupling on the chuck, and the terminal rigid coupling in back is worn out from the ring flange of mounting panel left end installation to the pivot has a drive wheel, base bottom rigid coupling has a driving motor, and driving motor's output rigid coupling has an output gear, output gear pass through the chain with the drive wheel links to each other, two support element about the base right -hand member is installed, open the base both sides has the slide rail, installs slip cutting mechanism through the slide rail. The utility model discloses artificial intensity of labour be can reduce by a wide margin, work efficiency and production efficiency are improved to cutting accuracy be can improve, extravagant tubular product and then reduce cost are avoided.

Operating a drive device of a hybrid vehicle and hybrid vehicle

Abstract: A method for operating a drive device (3) of a hybrid vehicle (1) is made available, wherein the method comprises: operating, while a first gear speed of the transmission (19) is engaged, the internal combustion engine (5) at a first rotational speed (637, 413) for the first gear speed in a parallel hybrid operating mode in which, when the main clutch (K0) is closed, a traction drive torque acting on the drive wheel (15) is generated by means of the internal combustion engine (5); changing into a serial hybrid operating mode in which the internal combustion engine (5) drives the first electric machine (9) to generate electrical energy which is used by the second electric machine (11) to bring about the traction drive torque; opening the main clutch (K0); setting a rotational speed of the internal combustion engine (5) to a second rotational speed (639, 415) for a second gear speed of the transmission (19) in the parallel hybrid operating mode when the main clutch is opened; engaging the second gear speed of the transmission (19); closing the main clutch (K0); and changing into the parallel hybrid operating mode while the second gear speed is engaged.

Self-propelled agricultural machine with dual driving modes

Abstract: A windrower has a first dual-path steering mode, causing a left drive wheel and a right drive wheel to concurrently rotate, wherein the rotation of the left drive wheel is in a direction opposite that of the rotation of the right drive wheel and the position of tailwheel casters are not controlled but are permitted unconstrained rotation. The windrower also has a second tailwheel steering mode non-overlapping in operation with the dual-path steering mode, causing the left drive wheel and the right drive wheel to rotate concurrently in only a same direction and the tailwheel casters are steered based in part on tailwheel caster steer position information received from a sensor.

Automated track inspection system

Abstract: An autonomous device for rail track inspection includes a drive wheel system propelling the device via a drive wheel system, an automatic track loading fixture for and applying a load on rails, and sensors for taking track gauge measurement. Different automatic track loading fixtures may require stopping for load and measurement, or loading and measuring while still in motion. A switch agnostic system for operation with devices on a conventional railroad track system includes a linear slider movably mounted along a linear sliding support; multiple sensors mounted to the linear slider, the sensors operable to identify a rail of a track junction; and multiple roller bearings operable to engage the rail of the track junction and control the device across the track junction in response to movement of the linear slider along the linear sliding support.

Dryland corn whole-film double-furrow in-line precision hill-drop planter

Abstract: The utility model relates to the technical field of corn seeding machinery in agricultural machinery, in particular to a dryland corn whole-film double-furrow in-line precision hill-drop planter. The precision hill-drop planter comprises a machine frame and is characterized in that a diesel engine is arranged on the machine frame and transmits power to a first chain wheel and a second chain wheel through a chain after the speed change of a gearbox; a drive wheel is coaxially arranged on the first chain wheel, a driven wheel is meshed with the drive wheel and is coaxially arranged with a land wheel, a second chain wheel is connected with a crankshaft and connecting rod mechanism, the lower end of the crankshaft and connecting rod mechanism is connected with a push rod and a top rod, a hole forming device is arranged at the lower end of the push rod, a duckbill and a strong opening mechanism are arranged at the lower end of the hole forming device, a limit sliding sleeve is also arranged between the push rod and the machine frame, the top rod is connected with a seeding device at the lower part of a seed box; a seed guide pipe is also arranged on the seeding device, the lower end of the seed guide pipe is connected with the push rod, The dryland corn whole-film double-furrow in-line precision hill-drop planter solves the problems of film tearing, film picking, high hole and film hole dislocation rate and the like, has a simple structure, is practical, and is suitable for large-scale popularization and use.

Traveling mechanism of cable tunnel inspection robot

Abstract: The invention discloses a traveling mechanism of a cable tunnel inspection robot, belonging to the technical field of a robot. The traveling mechanism comprises a guide rail and a drive-guide mechanism; the guide rail is provided with a hollow chamber; the drive-guide mechanism comprises a frame installed in the hollow chamber of the guide rail; a horizontal guide pulley group is arranged on the vehicular frame and plays a horizontal guiding role in the hollow chamber of the guide rail; the robot is suspended below the frame; a load-bearing wheel group is arranged on the frame; load-bearing tracks for supporting the load-bearing wheel group are arranged in the hollow chamber of the guide rail; and a drive wheel group is arranged below the frame; the drive wheel group below the guide rail matches with the lower surface of the guide rail. The traveling mechanism of the cable tunnel inspection robot has stronger loading capacity, is simple in structure, light in weight and easy in transportation, installation and debugging.

Vehicle powertrain with dual-independent transmissions

Abstract: A dual-independent powertrain for a vehicle includes a transmission enclosure that houses a first transmission and a second transmission that are mechanically decoupled from each other. The enclosure includes a central frame, a first enclosure cover that interfaces with the central frame to collectively define a first transmission region on a first side of the central frame, and a second enclosure cover that interfaces with the central frame to collectively define a second transmission region on a second side of the central frame. The first transmission is housed within the first transmission region, and the second transmission is house within the second transmission region. Each transmission includes a motor-interfacing shaft that interfaces with a respective electric motor, a drive-interfacing shaft that interfaces with a respective drive wheel of a vehicle, and a multi-stage gear train mechanically coupling the motor-interfacing shaft and the drive-interfacing shaft.

Cable winding device with support body is removed to bottom

Abstract: The utility model discloses a cable winding device with support body is removed to bottom, including two support frames, the bottom of support frame is fixed with the connection framework, it has the transverse connection axle to hinge in the connection framework, the bottom of support frame is fixed with the travel drive motor, the output shaft of travel drive motor stretches into in the support frame and is fixed with the travel drive wheel, be fixed with drive wheel and transmitting gear in the transverse connection axle, the chain tensioning is on travel drive wheel and drive wheel, walking frame in bottom is in the below of support frame, the middle part of bottom walking frame has two baffles, the curb plate at bottom walking frame is fixed to transverse threaded rod's one end, the other end is fixed on the baffle, it can promote the reel and fixed, and it need not swash plate, the efficiency that improves the installation and unload greatly, and the interval between its two support frames can adjust, satisfies the reel of different length

Dual-drive wheelchair

Abstract: A dual-drive wheelchair comprises a frame, a front drive wheel assembly, a back drive wheel assembly, a first steering structure, a supporting structure and a control structure. The frame is provided with a chair seat for allowing a patient to seat; the back drive wheel assembly comprises a vertical rod and a transverse rod connected to the vertical rod, and the two ends of the transverse rod are each connected with a back wheel; the supporting structure comprises a bracket body and a shaft pipe, one end of the bracket body is connected to the frame in a pivot mode, the other end of the bracket body is connected to the front drive wheel assembly, and the shaft pipe is arranged on the vertical rod in a sleeving mode; a first steering part of the first steering structure is connected with the bracket body and a second steering part in a pivot mode, and the second steering part is fixedly connected with the vertical rod; a pair of holding rods of the control structure are fixedly connected with the first steering part. Accordingly, the patient or a nurse can independently rotate the frame and the back wheels to change the moving direction of the dual-drive wheelchair by holding the control structure through the hand.

Line patrol deicing robot and obstacle crossing method thereof

Abstract: The invention discloses a line patrol deicing robot and an obstacle crossing method thereof. The line patrol deicing robot comprises a machine body, wherein two moving arms are respectively arranged on two sides of the machine body, a drive wheel and a deicing wheel are arranged at the upper end of each moving arm, the drive wheels and the deicing wheels are connected with a drive motor, the drive wheels are respectively installed above the deicing wheels through push rods, a cable to be patrolled is erected between each drive wheel and each deicing wheel, a first motor and a second motor are installed on a bottom plate of the machine body, an output shaft of the first motor is connected with a first shaft, a second shaft sleeves the periphery of the first shaft, the second shaft is connected with the lower ends of the moving arms, an electricity storage device is further installed on the bottom plate, and detectors are installed in the front and at the rear of the machine body. The line patrol deicing robot is simple in mechanism movement, compact in mechanical structure, low in weight, flexible in movement, and capable of automatically crossing an obstacle, can greatly improve deicing and line patrol efficiency through a wheel type and arm type combined mode, can adapt to the cables different in thickness by changing limiting bolts of the wheels, is strong in practicability, and can achieve climbing of the cables and rod-shaped objects.

Novel forklift driving axle housing

Abstract: The utility model relates to a novel forklift driving axle housing. This kind of novel forklift driving axle housing, including the main reducer shell, the main reducer shell embeds has differential mechanism and main reducer, the main reducer shell is connected with the semi -axis sleeve pipe, and the semi -axis sleeve pipe is built -in to have the semi -axis that is connected with the wheel, installs the universal joint on the semi -axis and divide into interior semi -axis and outer semi -axis with the semi -axis, and outer semi -axis is installed on the wheel, be equipped with the bearing between semi -axis sleeve pipe and the wheel. The utility model discloses simple structure, reasonable in design controls the drive wheel and makes fork truck travel steadily, turns to smoothly, and life needs running maintenance and renewal part simultaneously, and use cost is big.

Fire extinguisher barrel girth welding machine

Abstract: The utility model discloses a fire extinguisher barrel girth welding machine belongs to circumferential weld welding technique field. The utility model discloses a frame, drive mechanism, barrel fixture, welder and welder alignment jig, drive mechanism set up in the one end of frame, and this drive mechanism includes motor, drive wheel, crosses ferryboat and transmission shaft, and the output shaft of motor links to each other with the drive wheel, and the drive wheel drives the transmission shaft through the transition wheel and rotates, barrel fixture includes jack catch, location cylinder, locating rack and locating piece, and on the one end swing joint of jack catch and transmission shaft, locating rack were fixed in the bottom plate of frame, the upper portion of this locating rack was provided with the location cylinder, and the locating piece is connected to the piston end of location cylinder, the jack catch with the locating piece cooperation fixes the barrel, be provided with the track in the frame on barrel fixture upper portion, welder alignment jig along this track horizontal migration. The utility model discloses can adapt to the welding requirements of different model fire extinguisher barrels, weld quality is good, and simple structure, is convenient for adjust, and the practicality is strong.

Corn cutting machine

Abstract: The invention discloses a corn cutting machine, comprising a rack, wherein a control box, a transfer mechanism and a cutting mechanism are arranged on the rack; the transfer mechanism comprises a first drive device, a main drive shaft and a counter drive shaft, the main drive shaft is connected with the counter drive shaft through a conveyor belt, corn positioning devices are arranged on the conveyor belt; the cutting mechanism comprises a second drive device, a drive wheel, a driven wheel, cutters and a cutter shaft, the drive wheel is connected with the driven wheel in a transmission manner, the cutter shaft is arranged on the rack, a plurality of cutters are arranged on the cutter shaft side by side, a position between two adjacent cutters is positioned by a positioning adjustment sleeve; hold-down gears used for pressing the corn tightly are arranged above the conveyor belt; a deslagging plate is also arranged on the rack for discharging the cut disintegrating slag. The corn cutting machine has the advantages that the structural design is scientific and reasonable, the positioning of the corn cutting operation is stable, notches are smooth, the yield is high, the operation of the machine is smooth, the low failure rate is low, and the machine is suitable for the cutting operation of fresh corn, frozen corn, root vegetables and the like.

Device for a track supports and warp for crawler-type field operation vehicle

Abstract: The utility model provides a device for a track supports and warp for crawler-type field operation vehicle, wherein, the drive wheel is installed in frame cross one end top, and preceding supporting wheel is installed in frame cross other end below, and preceding supporting wheel is connected with the pneumatic cylinder of installing on the frame simultaneously, and have back support frame in the below welding of the frame one end with the drive wheel homonymy, back supporting wheel is installed on the support frame of back, and the welding of frame middle part has and is used for the installation to be out of shape the deformation bearing frame support of bearing frame, be out of shape bearing frame bilateral symmetry be provided with respectively with connected to the frame and the same preceding deformation frame and after strain frame of structure, preceding deformation frame and after strain shelf location have the bearing wheel, be provided with the telescoping cylinder in the deformation bearing frame support to be equipped with the spring at the telescoping cylinder overcoat, when the ridge is crossed over to crawler-type field operation vehicle, change ground connection track intermediate position shape through pneumatic cylinder shrink and extension, in order to reduce crawler-type field operation vehicle slope height, improve the operation security

Trackless unmanned floor truck

Abstract: The utility model relates to a freight field, in particular to trackless unmanned floor truck. The utility model discloses a trackless unmanned floor truck includes the base, is provided with control mechanism and battery in the base, and the bottom of base is provided with driving motor and drive wheel, is provided with the elevating platform on the base, is provided with escalator structure, shovel board and UWB receiver on the elevating platform the utility model discloses in, the label outgoing letter number of goods shelves facing in the warehouse is received to UWB receiver control UWB signal reception label, the concrete position of the goods that the location will be got, and transmitter data to control mechanism, controlled drive motor drives the drive wheel and goes to and decides the bit position, and behind the arrival assigned position, escalator constructs work, and elevator motor drives the shaft coupling to driving the worm gear case, making the vice up -and -down motion of slip lead screw, drive the motion of shovel board, the goods is got to the shovel. The utility model discloses simple structure fixes a position accurately, and it is swift to march, and work efficiency is high.

Electronic stability program (ESP)

Abstract: Human error is the cause for a large portion of road accidents. Due to external circumstances, such as an obstacle suddenly appearing on the road or driving at inappropriately high speeds, the vehicle can reach its critical limits and it becomes uncontrollable. The lateral acceleration forces acting on the vehicle reach values that overtax the driver. Electronic systems can make a major contribution towards increasing driving safety.

Empty dual-purpose unmanned vehicles in land

Abstract: The utility model discloses an empty dual-purpose unmanned vehicles in land belongs to the aircraft application. The utility model discloses an aircraft body and unmanned car, the aircraft body is connected through the bumper shock absorber with unmanned car, be equipped with on the aircraft body and observe cloud platform and GPS positioner, be equipped with the power on the unmanned car, this power provides the electric energy for aircraft body and unmanned car, unmanned car includes frame, actuating mechanism and steering mechanism, and actuating mechanism mainly comprises drive wheel and driving motor, belt drive between driving motor and the drive wheel, steering mechanism control frame travel direction. The utility model discloses an unmanned vehicles makes up individual drive with aircraft body and unmanned car mutually to carrying on on the aircraft body and surveing the cloud platform, make it carry out monitoring investigation task with land aloft, equipment is small moreover, and degree of automation is high, and the flexible operation is suitable for and uses widely in the every profession and trade.

Braking force control apparatus for saddle ride vehicle

Abstract: A braking force control apparatus in a motorcycle, includes a controller which controls a transmission to reduces driving force of an engine by a predetermined speed reduction ratio and transmits the driving force to a drive wheel of a vehicle, a clutch between the engine and the transmission, and brake devices which generate braking force on the wheels. The vehicle is switchable between a normal and a slow speed driving modes. In the slow speed mode the controller detects an inclination pitching angle θ, and causes the brake devices to generate braking force on at least one of the drive wheels when θ≧a predetermined value, then starts switching the clutch to a connected state when a driving operation is input, and gradually releases the braking force once driving force starts to be transmitted to the drive wheel.

Wheel leg type dual-purpose robot

Abstract: The invention discloses a wheel leg type dual-purpose robot featured with simple structure and low cost. The wheel leg type dual-purpose robot comprises one or more bidirectional-drive power devices, a body and two or more wheel legs, the wheel legs comprise drive wheel legs, guide wheel legs or drive and guide wheel legs, and each wheel leg is connected with the body through a one-degree of freedom or two-degree of freedom movable joint; each wheel leg comprises one or more movable joint, a wheel is arranged at the end, the power device is arranged in the body, and the wheel of the drive wheel leg is driven by the power generated by the power device through a body and wheel leg transmission device; the movable joints are driven through a transfer device or a hydraulic system, each movable joint can move independently, the power device is arranged in the body, the wheel legs are light, the drive power is large, and the loading capacity and adaptability are strong.

Interaction of In-wheel permanent magnet synchronous motor with tire dynamics

Abstract: Drive wheel systems combined with the in-wheel permanent magnet synchronous motor (I-PMSM) and the tire are highly electromechanical-coupled. However, the deformation dynamics of this system, which may influence the system performance, is neglected in most existing literatures. For this reason, a deformable tire and a detailed I-PMSM are modeled using Matlab/Simulink. Furthermore, the influence of tire/road contact interface is accurately described by the non-linear relaxation length-based model and magic formula pragmatic model. The drive wheel model used in this paper is closer to that of a real tire in contrast to the rigid tire model which is widely used. Based on the near-precise model mentioned above, the sensitivity of the dynamic tire and I-PMSM parameters to the relative error of slip ratio estimation is analyzed. Additionally, the torsional and longitudinal vibrations of the drive wheel are presented both in time and frequency domains when a quarter vehicle is started under conditions of a specific torque curve, which includes an abrupt torque change from 30 N · m to 200 N · m. The parameters sensitivity on drive wheel vibrations is also studied, and the parameters include the mass distribution ratio of tire, the tire torsional stiffness, the tire damping coefficient, and the hysteresis band of the PMSM current control algorithm. Finally, different target torque curves are compared in the simulation, which shows that the estimation error of the slip ratio gets violent, and the longitudinal force includes more fluctuation components with the increasing change rate of the torque. This paper analyzes the influence of the drive wheel deformation on the vehicle dynamic control, and provides useful information regarding the electric vehicle traction control.

Crawler type substation patrol robot based on hub motor

Abstract: The invention relates to a crawler type substation patrol robot based on a hub motor The crawler type substation patrol robot based on the hub motor comprises a connector, an electrical cabinet, and two the same drive systems distributed at the left and right sides, the drive systems at the left and right sides are connected into a single unit through the connector, the connector and two support frames in the two drive systems are firmly connected in a relative translation regulation mode, and then the connector and two support frames can freely translate and slide to regulate the positions; the electrical cabinet is fixed on the connector; a motor in each drive system is the hub motor, a transmission component is omitted, and the structure is simplified The crawler type substation patrol robot has a simple and novel drive mode The crawler type substation patrol robot also can serve as a variable-structure robot, and a dip angle (top rake) between a drive wheel driving mechanism and a support wheel supporting mechanism, a dip angle (caster angle) between a guide wheel support mechanism and the support wheel supporting mechanism, and a height between the connector and the ground can be regulated according to the movement environment The crawler type substation patrol robot can strain the crawler through regulating the position of the guide wheel support mechanism after the crawler becomes loose in the long-time movement Compared with a traditional crawler type robot, the obstacle crossing performance and move flexibility of the robot are better

Small test uses seeder in field

Abstract: The utility model provides a small test uses seeder in field, belongs to the agricultural machine field, and including the frame, running gear is provided with kinds of bank deposits storehouse and seeder on the frame, and its characteristics are: add the compaction device, transmission shaft including squeeze board and level setting, the both ends of transmission shaft all are provided with the drive wheel, the drive wheel be connected with running gear and with transmission shaft fixed connection, the up end of squeeze board is provided with to carry and draws montant and transfer line, carry the lower extreme and squeeze board fixed connection that draw the montant, it is articulated with the lower extreme of transfer line to carry the upper end of drawing the montant, the upper end of transfer line is articulated with the drive wheel, carry and draw the montant to drive the squeeze board up -and -down motion rather than fixed connection, to plant incompact soil compaction in the hole, thereby the problem that kind of hole was rush out easily to the seed has been solved when the following planting is irrigated, the utility model discloses step is few, efficient when the seeding, labour saving and time saving

Electric coolant pump

Abstract: An electric coolant pump has a housing (10), a motor accommodated in the housing (30), a drive wheel (20) for driving the coolant, and a control unit (40) for controlling the motor. The control unit (40) and the drive wheel (20) are arranged at opposite ends of the motor. The engine has a sleeve (32), a stator (34) mounted around the sleeve (32), and received in the sleeve runner (36). The drive wheel is attached to the rotor. A radial gap is formed between the sleeve (32) and the rotor (36). The sleeve (32) has a plurality of ribs (321), which extend from an inner surface of the sleeve into the gap. At least part of the ribs directs the coolant toward the control unit, to absorb heat that is generated by the control unit.

Machine people is gone on patrol to transformer substation's intelligence based on STM32

Abstract: The utility model provides a machine people is gone on patrol to transformer substation's intelligence based on STM32, including the chassis, characterized by: there are four drive wheels on the chassis through the bolt fastening, the drive wheel passes through shaft coupling and the cooperation of direct current servo motor, direct current servo motor passes through the motor supporting seat to be fixed on the chassis, the chassis welding has the locker, and solar electromagnetic panel installs the surface of locker, the upper end of locker is provided with infrared hot image device, GPRS antenna and square boss, battery and controller have been placed to the inside of square boss, and smoke alarm installs on the outer wall of square boss, square boss passes through two -stage elevating system and connects the infrared camera device, the upper end of square boss still is provided with searchlight supporting mechanism and searchlight. The utility model discloses the design is novel, and is rational in infrastructure, convenient to use, the suitable popularization and application.

Vertical type annular diamond linear cutting machine

Abstract: The utility model relates to the cutting equipment of hard and brittle materials, and specifically relates to a vertical type annular diamond linear cutting machine The vertical type annular diamond linear cutting machine is mainly characterized in that the vertical type annular diamond linear cutting machine comprises a base frame, an outer protective cover, a drive wheel, a driven wheel, a tensioning wheel component, a fretsaw, an aluminum alloy frame, a feed sliding table, a lifting mechanism, a control display screen, and an electrical cabinet; the aluminum alloy frame is fixed on the base frame; the lifting mechanism, the drive wheel, the driven wheel and the tensioning wheel component are fixed on the aluminum alloy frame; the three wheels constitute an isosceles triangle; the aluminum alloy frame is opened with a crystal concession window; the drive wheel and the driven wheel are arranged on bilateral sides of the concession window; the tensioning wheel component is arranged on the central axis of the drive wheel and the driven wheel; the fretsaw wraps on the drive wheel, the driven wheel and the tensioning wheel component; an output shaft of an electric motor is directly connected with an shaft of the drive wheel The vertical type annular diamond linear cutting machine has the advantages of simple and compact in integral structure, high in transmission efficiency, and low in failure rate

A novel step climbing strategy for a wheelchair with active-caster add-on mechanism

Abstract: We have previously developed a five-wheeled wheelchair with an active-caster drive system. To improve motion performance of the wheelchair, we have proposed the function which two types of motions, such as rear-like drive and front-like drive mode, can be selected by using the linear actuator. In this paper, we propose a step climbing strategy and develop a mechanism. The proposed five-wheeled wheelchair has five points of contact to the ground in the stand condition. To make the front casters of the wheelchair to be hovered from the ground, a “static wheelie” configuration in which large wheels and a drive wheel touch to the ground is taken by maintaining the static stability of a wheelchair. We propose a novel and unique strategy by utilizing the statically stable wheelie configuration. Additionally, the drive wheel is lifted onto the step by cooperative control between the linear actuator and the drive wheel. We confirm that the proposed method is applicable by comparing it with a step climbing method that uses only the traction force of the drive wheel. To achieve the proposed step climbing method, we develop a novel link mechanism that can perform not only the step climbing method but also the functions mentioned above and confirm the design conditions. After the prototype is built, we confirm that a user can climb over a step by the proposed method and mechanism.

Automatic small -size vegetable transplanting machine commutates

Abstract: The utility model provides a plant mechanism and seedling cup are installed to support and rotatory inner ring fixed connection on rotary platform, can realize 180 degrees rotations between this rotary platform and the lift platform that automatic small -size vegetable transplanting machine commutates is equipped with a big round hole at lift platform's middle part, circles in big round hole and is equipped with rotatory inner ring, is equipped with rotary platform on big round hole, this rotary platform. Wherein, be equipped with the steering spindle in the four corners of frame, be connected with the worm wheel lower the serving of steering spindle, have the worm in one side of worm wheel cooperation, be connected with the worm gear motor in the rear end of worm, be connected with the drive wheel support in the steering spindle of worm wheel lower extreme, two lower extremes of this drive wheel support are connected with the bumper shock absorber, and this bumper shock absorber lower extreme transverse connection has the drive wheel motor, is connected with the drive wheel on this drive wheel motor. The beneficial effects of the utility model are that: the utility model discloses small, the tune is convenient, utilize the battery as few, small, the adjusting range of power, simple structure, spare part greatly, low in manufacturing cost.

Drive arrangement of pipeline robot and pipeline robot

Abstract: The utility model provides a drive arrangement of pipeline robot and pipeline robot, including base plate and a plurality of the drive legs of symmetric distribution outside the base plate, be connected with the spring between two adjacent drive legs, be equipped with code wheel motor, output shaft and shaft in the drive leg, code wheel motor and output shaft are equipped with the initiative taper gear and driven bevel gear that the meshing linked on the output shaft, and the shaft bilateral symmetry is equipped with the drive wheel, drive leg tip is equipped with rack seat, bogie and positioning mechanism, rack seat and wheel hub connection are equipped with gear and rack on the rack seat, when bogie rigidity was not rotated, gear and rack separated, and when the bogie rotation, gear and rack intermeshing, positioning mechanism can fix a position bogie pivoted angle, drive arrangement still includes the steering wheel, the bogie links to each other with the steering wheel through first cable. The utility model discloses simple structure, the robot can freely walk in various shape pipelines.