Showing papers on "Slewing bearing published in 2016"
TL;DR: In this article, a multivariate and multiscale statistical process monitoring method is proposed with the aim of detecting incipient failures in large slewing bearings, where subjective influence plays a minor role.
144 citations
TL;DR: In this paper, an acoustic emission-based method for the condition monitoring of low speed reversible slew bearings is presented, and several acoustic emission (AE) hit parameters as the monitoring parameters for the detection of impending failure of slew bearings are reviewed first.
135 citations
TL;DR: In this paper, a least square support vector machine (LSSVM) was used to estimate the degradation trend of a bearing with a small sample of data, and the degradation indicator fused by PCA can reflect the degradation more comprehensively and effectively.
80 citations
TL;DR: In this paper, a two-stage research program including the analysis of local issues contact the contact zone ball-raceway and the global analysis concerning a static carrying capacity of the twin slewing bearing has been proposed.
21 citations
Patent•
11 Jul 2016
TL;DR: In this paper, a walking-type hydraulic excavator is used to perform self-rescue and towing assistance in difficult terrain by adjusting the swing angles of the forward and rear legs.
Abstract: A multifunctional all-terrain walking-type hydraulic excavator includes a multifunctional working apparatus ( 2 ), a cab ( 3 ), a slew assembly ( 4 ), a slewing bearing ( 6 ), and a walking-type chassis ( 5 ). By means of a hydraulic capstan ( 5.9 ) arranged at the forward end of the chassis ( 5 ), the excavator is able to perform self-rescue and towing assistance. The walking-type chassis ( 5 ) adapts to terrain through adjustments of the swing angles of the forward and rear legs ( 5.2, 5.4, 5.5, 5.6 ) and thus is able to walk and operate in difficult terrain.
16 citations
Patent•
22 Jan 2016TL;DR: In this paper, a method and apparatus for suppling non-hydraulic power to a tool unit during well operation is presented, which is capable of supplying at least 2kW for at least 10s.
Abstract: A method and apparatus for suppling non-hydraulic power to a tool unit during well operation. A top drive (4) supplies power to a power consumer of the tool unit (200) with a non-hydraulic power supply: a mechanical power coupling from the top drive to the tool unit, a wireless power coupling from the top drive to the tool unit, a local power supply on the tool unit, and/or combinations thereof. The non-hydraulic power supply may be capable of supplying at least 2kW for at least 10s. The system may include a fixed gear (450) coupled to the top drive, a slewing ring (460) meshed to the fixed gear, and a revolving gear (470) meshed with the slewing ring and coupled to the tool unit. The slewing ring is configured to transfer rotational force from the fixed gear to the revolving gear, and may be rotated by rotating a torque shaft or actuating the fixed gear.
15 citations
01 May 2016
TL;DR: In this article, an attempt has been made to find the influence of manufacturing errors on load distribution among the rolling elements using finite element method, which has been shown to improve the performance and life of the bearing.
Abstract: Fuel and other subassemblies in fast breeder reactor are handled through a combination of small rotatable plug, large rotatable plug and transfer arm. Rotation of the plugs is facilitated through large slewing bearings. These bearings are subjected to heavy loads and moments. Manufacturing errors on the rolling elements and races influence the load sharing among the elements. As a result, higher load acting on a rolling element causes excessive local deformation and unacceptable indentation. The higher load can also cause excessive sub-surface shear stress and fatigue failure of rolling races. Too stringent tolerances demand sophisticated machines, whereas liberal tolerances mean compromise on the performance and life of the bearing. There are no established methods for design of slewing bearings that include the influence of manufacturing errors. Hence, an attempt has been made to find the influence of manufacturing errors on load distribution among the rolling elements using finite element method. It is...
13 citations
TL;DR: In this paper, the authors presented the transient dynamic simulation methodology developed within SIEMENS for the study of full-scale rotor landings in rolling element BuBs, and validated the developed models were validated with a substantial landing program led and performed by SIEMSENS, whose objective was to qualify the safe operation of hybrid rolling elementBuBs for an industrial application utilizing an AMB-levitated 9 ton supercritical motor.
Abstract: Backup Bearings (BuB) must be designed to withstand the shock loads which occur during impacts with heavy and/or high-speed rotors. Both experimental testing and transient dynamic simulation are necessary for the study of BuB performance. This paper presents the transient dynamic simulation methodology developed within SIEMENS for the study of full-scale rotor landings in rolling element BuBs. The developed models were validated with a substantial landing program led and performed by SIEMENS, whose objective was to qualify the safe operation of hybrid rolling element BuBs for an industrial application utilizing an AMB-levitated 9 ton supercritical motor. The paper describes the BuB model, summarizes the simulation results and offers a comparison to experimental measurements from the aforementioned successful landing tests program.
11 citations
Patent•
08 Jun 2016
TL;DR: The utility model has the advantage of simple and novel structure, design scientific and reasonable, the working property is stable, uses safe and reliable, add rotation mechanism, can change the angle of workstation as required wantonly, labour saving and time saving, very big improvement work efficiency as mentioned in this paper.
Abstract: The utility model discloses an improved generation is lift for construction, including base, hydraulic pressure station, balanced valve, drive wheel, directive wheel, motor, speed reducer, power, automatically controlled cabinet, slewing bearing, rotary actuator, revolving stage, firstly cut fork group, fork group, a thrust cylinder, the 2nd thrust cylinder and workstation are cut to the second, the drive wheel passes through the shaft to be fixed in base one end, and the directive wheel passes through the shaft and fixes the other end at the base, and one side of base is equipped with the cat ladder of indent, the motor is installed inside the base, and the speed reducer is installed to the output of motor, all is equipped with the band pulley in the output of speed reducer and the pivot of installation drive wheel, and the speed reducer passes through the belt and is connected with the pivot of installation drive wheel The utility model has the advantage of simple and novel structure, design scientific and reasonable, the working property is stable, uses safe and reliable, add rotation mechanism, can change the angle of workstation as required wantonly, labour saving and time saving, very big improvement work efficiency
10 citations
Patent•
23 Nov 2016
TL;DR: In this article, a motor-driven formula captive balloon ground tackle, including the slewing bearing mount pad, was described, and the ground tackle has saved the trouble of operating personnel between ground and rotating platform about, and also became more simple and efficient, has improved captive balloon's operability and maintainability.
Abstract: The utility model discloses a motor -driven formula captive balloon ground tackle, including the slewing bearing mount pad, install slewing bearing on the slewing bearing mount pad, fix the rotating platform at the slewing bearing top, but the last utricule case of installing the flat support arm of mooring mast horizontal development or folding many genshui of drawing in in, being used for holding the captive balloon utricule of rotating platform, be used for the capstan winch system of rolling and release hawser, but rotating platform bottom both ends are equipped with the lifting supporting leg that can support whole rotating platform respectively, rotating platform bottom middle zone is equipped with a plurality of telescopic lower margins that are used for going up and down rotating platform. The utility model discloses a ground tackle has saved the trouble of operating personnel between ground and rotating platform about, and captive balloon shifts to the process of the car that anchors and also becomes more simple and efficient, has improved captive balloon's operability and maintainability, has overcome the not enough of ordinary anchoring car.
8 citations
Patent•
23 Mar 2016
TL;DR: In this article, a vertical type driving mechanism for a laser-guiding automatic guided vehicle (AGV) forklift comprises a driving mounting plate, a driven gear, a traveling motor and a steering motor.
Abstract: A vertical type driving mechanism for a laser-guiding automatic guided vehicle (AGV) forklift comprises a driving mounting plate, a driven gear, a traveling motor and a steering motor. A slewing bearing is fixedly arranged on the lower surface of the driving mounting plate, the traveling motor is fixed to the upper end of the slewing bearing, and a reduction case is arranged at the lower end of the slewing bearing. A motor shaft of the traveling motor is arranged downwards and is inserted into the reduction case at the lower end from the upper end of the driving mounting plate, and a shaft sleeve is arranged outside the motor shaft and arranged in the reduction case; a driving gear is arranged at the bottom of the reduction case and connected with a first bevel gear inserted into the reduction case, the end of the motor shaft is connected with a second bevel gear through a gear train, and the first bevel gear and the second bevel gear are engaged; the driven gear is fixed at the upper end of the reduction case, the steering motor is inversely fixed to the driving mounting plate, and a steering gear is arranged at the end of the steering motor and engaged with the driven gear.
Patent•
27 Oct 2016
TL;DR: In this article, a method and an arrangement for removing and lifting of a blade pitch slewing ring bearing of a wind turbine after a blade from a rotor hub of the wind turbine is removed, is disclosed.
Abstract: A method and an arrangement for removing and lifting of a blade pitch slewing ring bearing of a wind turbine after a blade from a rotor hub of the wind turbine is removed, is disclosed. The arrangement and method enables the lowering and lifting of the wind turbine without the need of large and heavy cranes so that the replacement can be carried out cost effectively. The arrangement includes a first pulley mounted at the bottom of the wind turbine, a second pulley mounted inside a rotor hub, a lifting line running over the first pulley, the second pulley and further over a third pulley mounted inside a carrier. The carrier supports the blade pitch slewing ring bearing during lifting and lowering which is achieved through a coordinated operation of a ground winch, the lifting line and tag lines. Further, rigging equipment is attached to the lowered blade pitch slewing ring bearing to enable easy transportation.
30 Sep 2016
TL;DR: In this paper, the basic design features and essentia l assumption of calculation models as well as the f actors influencing quality improvement and improvement of the bearing capacity of rolling slewing bearings are discussed.
Abstract: In the paper the basic design features and essentia l assumption of calculation models as well as the f actors influencing quality improvement and improvement of calcula tion process of bearing capacity of rolling slewing bearings are discussed. The aim of conducted research is the identi fication and elimination of sources of errors in de termining the characteristics of slewing bearing capacity. The result of the research aims atdeterminingthe risk of making mist akes and specifying tips for designers of slewing bearings. It is shown that ere is a necessity fora numerical method to be a pplied and that real conditions of bearing work must necessarily be taken int o account e.g. carrying structure deformations as t he first ones.
TL;DR: Wang et al. as discussed by the authors used correlation analysis and principal component analysis (PCA) based multiple sensitive features in time-domain to establish the performance recession indicators of temperature, torque and vibration, and these three indicators are input to the support vector regression (SVR) to construct the residual life model.
Abstract: Critical failure of a slewing bearing used in large machines would entail high costs to an enterprise. Designing the condition monitoring system to diagnose the failure or predict the residual life of the slewing bearing is a practical and effective method to reduce unexpected stoppage or optimize the maintenances. Many literatures mentioned the life prediction of small typical rolling bearings based on the vibration signal. However slewing bearing is a large low-speed heavy-load bearing completely different from small bearing. Some researchers focused on the fault diagnosis of slewing bearing using non-traditional methods with vibration signals. And no published literatures mention the life prediction researches of slewing bearings based on the condition monitoring. Therefore, this paper presents a residual life model for slewing bearing based on multiple physical signals (torque, temperature and vibration). The correlation analysis and principal component analysis (PCA) based multiple sensitive features in time-domain were used to establish the performance recession indicators of temperature, torque and vibration, and these three indicators are input to the support vector regression (SVR) to construct the residual life model. The test results show that the PCA fusion combined correlation based features selection is an effective method of choosing the performance regression indicators, which is able to make full use of various features. The residual life prediction model based on temperature, torque and vibration signals can well reflect the performance recession trend and is suitable to predict the residual life of slewing bearing effectively.
Patent•
13 Apr 2016
TL;DR: In this paper, the utility model provides a rotatory device that shifts of two freedoms for spherical conduit head, including conduit head anchor clamps, a drive assembly, upset supporting rack, 2nd drive assembly and 2nd positioner.
Abstract: The utility model provides a rotatory device that shifts of two freedoms for spherical conduit head, including conduit head anchor clamps, slewing bearing spare, a drive assembly, upset supporting rack, the 2nd drive assembly, chassis, a positioner and the 2nd positioner, conduit head fixture set is on the outer lane of slewing bearing spare, a drive assembly passes through slewing bearing spare and drives the Z axle gyration of conduit head anchor clamps around vertical orientation, the inner circle and a drive assembly of slewing bearing spare connect on the upset supporting rack, upset supporting rack both ends set up on the chassis, the secondary drive subassembly sets up on the chassis and connects the upset supporting rack, a positioner connects the upset supporting rack for the clamp utensil is around the rot. Location of Z axle of vertical direction, the 2nd positioner sets up on the chassis. The utility model discloses can the centre gripping spherical conduit head around X, two coordinate rotation of axes of Z, make the arbitrary position rotation arbitrary angle to the three dimensions in on the conduit head shell, stop and reliably fixing a position at the assigned position.
Patent•
30 Mar 2016
TL;DR: In this paper, a convertible sucking disc machine, including frame, lift drive, crane, overturning driving device, slewing bearing, and cantilever, is presented, which is applicable to the crude panel transport of face.
Abstract: The utility model provides a convertible sucking disc machine, including frame, lift drive, crane, overturning driving device, slewing bearing and cantilever, the crane can be followed the direction stand and go up and down on being installed many direction stands in the frame, lift drive install in the frame, be equipped with drive sprocket on lift drive's the output shaft, be equipped with driven sprocket in the frame, drive sprocket and driven sprocket coat are around there being a chain, the both ends of chain are articulated with the crane respectively, overturning driving device fixed mounting on the crane, the center department of slewing bearing inner circle is equipped with ring gear, ring gear and the epaxial gear engagement of overturning driving device output, the cantilever is installed and is circled in slewing bearing, is equipped with a plurality of sucking discs on the bottom surface of cantilever. The utility model discloses a cantilever type structure, compact structure has practiced thrift the space, the flexible operation, the utility model discloses a what the sucking disc adopted is the sponge sucking disc, is applicable to the crude panel transport of face.
Patent•
24 Feb 2016
TL;DR: The utility model provided a low-cost hard-rock tunnel entry driving machine simple structure, the cost is low, it is very convenient to use, with the rock out volume of minimum rock cutting output maxmizingization, especially in the tunnelling in short distance hard rock tunnel, greatly reduced the energy consumption, improved the efficiency of tunneling, has reduced the tunnel and has tunneled the cost as discussed by the authors.
Abstract: The utility model discloses a low -cost hard rock tunnel entry driving machine belongs to building engineering machinery technical field, include: cutting / pressure chisel mechanism, actuating system and propulsion support step -by -step system, the actuating system supports a section of thick bamboo, one feeds a section of thick bamboo, single -revolution hydraulic motor, single -revolution gearbox and a slewing bearing including a columniform, the tile bores including a blade disc, a plurality of press wheel and even number piece in cutting / pressure chisel mechanism, blade disc fixed mounting is on slewing bearing's bull gear, press wheel fixed mounting is in on the blade disc, bore the tile installs symmetrically on the blade disc, and every bored on the tile still that the welding has a plurality of to bore teeth. The utility model provides a low -cost hard rock tunnel entry driving machine simple structure, the cost is low, it is very convenient to use, with the rock out volume of minimum rock cutting output maxmizingization, especially in the tunnelling in short distance hard rock tunnel, greatly reduced the energy consumption, improved the efficiency of tunneling, has reduced the tunnel and has tunneled the cost.
Patent•
23 Nov 2016
TL;DR: In this article, the utility model is used for between fork truck prong and the fork truck control cabinet, relative rotary motion takes place for realization fork truck and fork truck automobile body relatively, enlarges fork truck's application range, manufacturing convenience have very big market using value simultaneously.
Abstract: The utility model discloses an it is narrow to rotary device for fork truck, it is installed between narrow path fork truck prong and control cabinet, comprising a housin, slewing bearing, the driving gear, first gear, the second gear, the pivot, a plurality of mountings and bearing, the driving gear, first gear, the second gear is connected with three bearing respectively, the bearing passes through the fixed setting of bearing frame in the casing, the mounting includes outer hex bolts, slewing bearing through outer hex bolts with can be connected, the driving gear is connected with motor or motor, the driving gear meshes with first gear mutually, be connected through the pivot between first gear and the second gear, gear mesh outside second gear and slewing bearing's the outer lane, slewing bearing is connected with the fork truck prong. The utility model is used for between fork truck prong and the fork truck control cabinet, relative rotary motion takes place for realization fork truck prong fork truck automobile body relatively, enlarges fork truck's application range, and simple structure, manufacturing convenience have very big market using value simultaneously.
Patent•
03 Aug 2016
TL;DR: In this paper, a dynamic simulation ware with four degrees of freedom mechanism, including the flexible electronic jar of base, rotary platform, passenger cabin and connection rotary platforms and passenger cabin, last simulation host computer, active control system and the slewing bearing mechanism of installing of rotary Platforms.
Abstract: The utility model relates to a dynamic simulation ware with four degrees of freedom mechanism, including the flexible electronic jar of base, rotary platform, passenger cabin and connection rotary platform and passenger cabin, last simulation host computer, active control system and the slewing bearing mechanism of installing of rotary platform, rotary platform passes through slewing bearing mechanism and the rotatable swing joint of base, install seat, display, steering wheel, running -board on the passenger cabin, the passenger cabin is through flexible electronic jar and rotary platform swing joint. The utility model discloses the passenger cabin passes through rotary platform and moves and the resultant motion of electronic jar motion that stretches out and draws back the slope of carry out the front and back, controlling to reach lift, rotatory free motion, this utility model mechanical structure is simple, the comparative difference in cost is hanged down, and motion amplitude is moderate, stability good, and convenient scene is installed and is transported.
Patent•
26 Oct 2016
TL;DR: In this article, a rotating rack for a spaceflight storage tank and a particle treatment instrument is provided, where a zero-backlash speed reducer is connected with output shafts of two alternating-current servo motors controlled by a numerical control system with a doubleservo-motor driving clearance removing technology.
Abstract: The invention provides a transmission mechanism. The transmission mechanism is characterized by comprising a slewing bearing arranged on a rotation body in a sleeving manner; a pin wheel is firmly fixed to the outer ring of the slewing bearing; at least two gears are engaged with pin teeth of the pin wheel to form pin tooth transmission; the gears are connected with a zero-backlash speed reducer; and the zero-backlash speed reducer is directly connected with output shafts of two alternating-current servo motors controlled by a numerical control system with a double-servo-motor driving clearance removing technology. According to the other technical scheme of the invention, a rotating rack used for a spaceflight storage tank and a particle treatment instrument is provided. The rotation rack comprises a rotation body and is characterized in that the above transmission mechanism drives the rotation body to rotate; and a front rotation power base is arranged at the front end of the rotation body, and a rear rotation bracket base is arranged at the rear end of the rotation body. According to the designed rotation rack, a circle of large-load-bearing rollers are adopted for forming a load bearing machine base supporting the rotation rack, non-sliding driving and positioning are achieved under the cooperation of the gears or the pin teeth, and meanwhile a rotation angle value is obtained in a non-sliding manner according to a certain speed ratio through the gears or the pin teeth.
Patent•
26 Oct 2016
TL;DR: In this article, a four-freedom-degree ten-rod controllable mechanism type stacking robot is presented, which consists of an arm lifting mechanism, a posture keeping mechanism, an end effector, servo motors and speed reducers.
Abstract: A four-freedom-degree ten-rod controllable mechanism type stacking robot comprises an arm lifting mechanism, a posture keeping mechanism, a slewing bearing, a base, an end effector, servo motors and speed reducers. The arm lifting mechanism comprises a rotation rack, a first drive rod, a first folding rod, a supporting rod, a transverse rod, a second connecting rod and a second drive rod. The posture keeping mechanism comprises a first balance rod, a second folding rod, a second balance rod and a translation holder, and the rotation rack is connected with the base through the slewing bearing. The end effector is connected to the translation holder. According to the four-freedom-degree ten-rod controllable mechanism type stacking robot, a multi-connecting-rod controllable mechanism is adopted, the servo motors installed on the rotation rack are used for conducting driving, the four-freedom-degree ten-rod controllable mechanism type stacking robot has the beneficial effects of being high in rigidity, small in motion inertia, high in bearing capability, accurate in posture control and good in dynamic characteristic, and the requirement for high-speed and heavy-load carrying stacking is met.
Patent•
11 May 2016
TL;DR: In this paper, a single track single open-type switch system of suspension type railway traffic system to complicated track traffic network can be adapted to well, and switch autosegregation is realized.
Abstract: The utility model provides a single track single open -type switch system of suspension type railway traffic system to complicated track traffic network can be adapted to well, and switch autosegregation is realized. Including having the switch roof beam main part of thread and branch line to and movable rail, deflector, correction rail and locking device, movable rail lies in between thread, the branch line, and its forward -mounted is on first no tooth -like slewing bearing, by drive arrangement drive swing. The deflector passes through the second not to be had tooth -like slewing bearing and is connected with movable rail rear end. Revise the rail and lie in between deflector below and the switch roof beam main part, drive by the 2nd drive arrangement. Locking device sets up in switch roof beam main part, locks the relative position between movable rail, deflector, the correction rail.
Patent•
05 Jun 2016
TL;DR: A construction vehicle has a slewing ring on which a superstructure is rotatably mounted and an undercarriage supporting the ring as discussed by the authors, and a pivoting apparatus is provided m order to pivot the lower chassis relative to the upper chassis.
Abstract: A construction vehicle has a slewing ring on which a superstructure is rotatably mounted, and an undercarriage supporting the slewing ring. The undercarriage includes an upper chassis, having an upper propulsion device, that is rigidly connected to the slewing ring, and & lower chassis having a lower propulsion device that is mounted in a. pivotable manner with respect to the upper chassis. Furthermore, a pivoting apparatus is provided m order to pivot the lower chassis relative to the upper chassis.
TL;DR: In this paper, a model with detailed design parameters of a rotor slewing bearing with the structure type of double-row tapered roller for supporting the rotor of the wind turbine was presented.
Abstract: Mechanical model with detailed design parameters of a rotor slewing bearing with the structure type of double-row tapered roller for supporting the rotor of the wind turbine was presented. The internal geometrical relationships of the rotor slewing bearing were established in the Cartesian coordinate system. The elastic contact deformations between each tapered roller and the raceways were expressed through the geometrical transformation. The mechanical model was established using the equilibrium relations in the rotor slewing bearing. The safety factor and the fatigue life which represents, respectively, the ability of resisting the rolling contact plastic deformation failure and the rolling contact fatigue failure of the rotor slewing bearing were obtained based on the solution of the mechanical model. Effects of the detailed design parameters such as axial clearance, contact angle, and roller semi-cone angle on the carrying capacity of the rotor slewing bearing were analyzed. The results show that right amount of small negative axial clearance, increase in contact angle, and decrease in roller semi-cone angle are advantageous for enhancing the carrying capacity of the rotor slewing bearing. This provides the basis for the reasonable value selection of the design parameters of the double-row tapered roller slewing bearing for supporting the rotor of the wind turbine.
Patent•
21 Sep 2016
TL;DR: In this paper, a self-adjusting roller carrier is proposed, which consists of a rack and a roller mechanism, which can rotate according to the outside surface shape of the tower section so as to automatically adapt to the radian of a cone cylinder.
Abstract: The invention relates to a self-adjusting roller carrier, which comprises a rack and a roller mechanism. A bi-directional rotating mechanism is arranged on the rack, and comprises a slewing bearing and a roller seat; a part of the slewing bearing can rotate around a first shaft; the roller seat can rotate around a second shaft; the slewing bearing is arranged on the rack; the roller seat is arranged on the slewing bearing; the roller mechanism is arranged on the roller seat. The self-adjusting roller carrier provided by the invention adopts the bi-directional rotating mechanism to fix the roller mechanism, so that two rotational degrees of freedom are added for the roller mechanism; when a tower section is placed on the roller carrier, the roller mechanism can automatically rotate according to the outside surface shape of the tower section so as to automatically adapt to the radian of a cone cylinder, so that the favorable contact of rollers and the cone cylinder is realized.
TL;DR: Opracowanie ze środkow MNiSW w ramach umowy 812/P-DUN/2016 na dzialalnośc upowszechniającą nauke as discussed by the authors.
Abstract: Opracowanie ze środkow MNiSW w ramach umowy
812/P-DUN/2016 na dzialalnośc upowszechniającą nauke.
01 Jun 2016
TL;DR: In this article, the authors developed new and more versatile selection curves for four contact point slewing bearings, with a clear explanation of their background, scope and limitations, taking into account the two possible static failure types, the ball-raceway contact failure and the bolted joint failure.
Abstract: The selection of slewing bearings is based on the static load-carrying capacity. In this sense, manufacturers provide selection curves in their catalogues. However, little information is given about their origin. This work develops new and more versatile selection curves for four contact point slewing bearings, with a clear explanation of their background, scope and limitations. The new curves take into account the two possible static failure types, the ball-raceway contact failure and the bolted joint failure.
Patent•
06 Apr 2016
TL;DR: In this article, a car gyration dish device was used to improve transmission efficiency and transmission precision stationarity for carousel work, and the utility model discloses structural design is simple, utilizes motor reducer gear and slewing bearing bearing inner race gear to cooperate and drives, improves transmission efficiency, improves the transmission precision.
Abstract: The utility model provides a novel car gyration dish device, include: base, base are fixed subaerial, and the base upside is equipped with the platen, and the platen upside is equipped with the backup pad, the platen bottom was fixed with the cab apron, it is fixed with the slewing bearing bearing to cross the cab apron, slewing bearing bearing inner race is equipped with circular gear, slewing bearing bearing inner race gear and motor gear engagement, the motor gear is through setting up the motor gearbox drive in base one side, the motor reducer is fixed on the base. The utility model discloses structural design is simple, utilizes motor reducer gear and slewing bearing bearing inner race gear to cooperate and drives, improves transmission efficiency, improves the transmission precision stationarity for carousel work is more smooth.
Patent•
06 Jan 2016
TL;DR: In this paper, a pipeline snatch car including slide mechanism, a rotation mechanism, swing arm dipper mechanism, snatch mechanism, power and control mechanism, and a rotating mechanism is presented.
Abstract: The utility model discloses a pipeline snatch device, including slide mechanism, a rotation mechanism, swing arm dipper mechanism, snatch the mechanism, power and control mechanism, a rotation mechanism includes a slewing bearing and rather than rotatable coupling's slewing bearing mount pad, realize the gyration through the angling cylinder between a slewing bearing and the slewing bearing mount pad, the slewing bearing mount pad slidable install on slide mechanism, connect swing arm dipper mechanism on the slewing bearing, swing arm dipper mechanism still with snatch the mechanism and be connected, power and control mechanism connect respectively and control above -mentioned each actuating mechanism and move. The utility model provides a pipeline snatch car including above -mentioned snatch device. The utility model discloses can realize snatching snatch, axial displacement, level and the vertical angle adjustment of pipeline, greatly make things convenient for piping erection, reduce intensity of labour, improve the efficiency of construction. The utility model discloses occupation space is little, and working range is big, very adaptation operation in the narrow of colliery.
Patent•
28 Sep 2016
TL;DR: In this article, a same-track drag rod trailer train is described, which consists of a drag ring, a vehicle frame assembly, a front steering walking mechanism, a rear steering walk mechanism and a hydraulic steering system.
Abstract: The invention discloses a same-track drag rod trailer train which comprises a drag ring, a vehicle frame assembly, a front steering walking mechanism, a rear steering walking mechanism, a front steering system, a rear steering system, a front slewing bearing, a rear slewing bearing, a drag hook, a drag rod and a hydraulic steering system. The bottom of the front end of the vehicle frame assembly is rotationally connected with the upper portion of the front steering walking mechanism through the front slewing bearing, and the bottom of the rear end of the vehicle frame assembly is rotationally connected with the upper portion of the rear steering walking mechanism through the rear slewing bearing. The front end of the drag rod is fixedly connected with the drag ring, and the rear end of the drag rod is rotationally connected with the front steering walking mechanism. The drag hook is installed at the tail portion of the rear steering walking mechanism. The hydraulic steering system controls the front steering system and the rear steering system to be in linkage. The front steering system drives the front steering walking system to steer through the front slewing bearing, and the rear steering system drives the rear steering walking system to steer through the rear slewing bearing. By the adoption of the same-track drag rod trailer train, multiple drag rod trailers are connected in series to be dragged by one tractor, front shaft active steering and rear shaft active steering are achieved at the same time, the transportation efficiency is improved, the turning radius is reduced, and same-track passage is achieved.