Showing papers on "Reducer published in 1993"

Motorized rotary joint and method of constructing a modular robot utilizing same

Abstract: A motorized rotary joint for robots integrates a joint bearing with a power transmission, such as a planetary type speed reducer, and provides a large central hole for passing electric and service lines therethrough. The rotary joint includes a built-in rotor and stator arrangement within the same joint housing structure, thus allowing the electric motor to share the same bearings and housing structure with the speed reducer. Preferably, the rotor also carries planets of the reducer and the stator is either integral or coupled to a housing of the reducer. The rotary joint also accommodates an encoder, a circuit board having electronic components thereon and a built-in brake to provide a totally integrated, intelligent rotary joint. A method for constructing a modular robot using the rotary joint is also provided, wherein several such rotary joints are coupled to simple structural elements by means of bolted interfaces to construct a multi-joint robot of an articulated structure. Such a modular robot has low cost, is easy to maintain and service, and can be readily and speedily constructed and reconfigured from integrated modular components.

Reducer for cannulae

Abstract: A reducer for trocar cannulae includes a covering cap which can be secured on the handle of a cannula and which has a socket engaging with a distal end to the handle provided for the shaft of operating instruments. The proximal end face of the socket is sealed off via a wall provided with at least two openings. Seals for shafts of operating instruments of smaller diameter are allocated to the openings.

Optimal filtering by neural networks with range extenders and/or reducers

Abstract: A method and apparatus is provided for processing a measurement process to estimate a signal process, even if the signal and/or measurement processes have large and/or expanding ranges. The method synthesizes training data comprising realizations of the signal and measurement processes into a primary filter for estimating the signal process and, if required, an ancillary filter for providing the primary filter's estimation error statistics. The primary and ancillary filters each comprise an artificial recurrent neural network (RNN) and at least one range extender or reducer. Their implementation results in the filtering apparatus. Many types of range extender and reducer are disclosed, which have different degrees of effectiveness and computational cost. For a neural filter under design, range extenders and/or reducers are selected from those types jointly with the architecture of the RNN in consideration of the filtering accuracy, the RNN size and the computational cost of each selected range extender and reducer so as to maximize the cost effectiveness of the neural filter. The aforementioned synthesis is performed through training RNNs together with range extenders and/or reducers.

Swivel base driving structure for industrial robot

Abstract: PURPOSE: To enhance the durability of a cable, and concurrently provide the swivel base driving structure for an industrial robot, which is small in size and light in weight. CONSTITUTION: In the swivel base driving structure for an industrial robot, which is equipped with a swivel section 3 to be swiveled over a base 1, a drive motor 5 rotatably driving the swivel section 3, and with a speed reducer reducing the drive shaft 51 of the drive motor 5 in rotation, the fixed section 50 of the drive motor 5 is fixed to the end section of the swivel section 3, the fixed section 21 of the reducer is fixed to the base 1, and a speed reducing mechanism section 25 in a hollow shape, which is provided for the fixed section of the speed reducer via bearings, is fixed to the end section of the swivel section 3. A hollow input shaft 22 which is provided for the inner side of the speed reducing mechanism section 25 and is connected to the speed reducing mechanism section 25, is connected to the drive shaft 51 of the drive motor 5 via a speed reducing means, and a cable 7 feeding electric power is designed to pass through the inside of the hollow input shaft 22 within the swivel section 3. COPYRIGHT: (C)1995,JPO

Apparatus and process for metering a low pressure fluid into a high pressure fluid flow

Abstract: An apparatus for metering an accurate flow of a first fluid, at a low pressure and a low flow rate, into a conduit conducting a flow of a second fluid, at a much higher pressure and much greater flow rate, comprises a pressure reducer containing a nozzle and a peristaltic pump connected in fluid communication with the pressure reducer. The pressure reducer is connected in the conduit and the nozzle of the pressure reducer increases the flow rate of the second fluid flowing through the pressure reducer, thereby correspondingly reducing the pressure of the second fluid in the pressure reducer. The peristaltic pump supplies the first fluid to an area of the bore through the pressure reducer where the nozzle has decreased the pressure of the second fluid channeled through the pressure reducer. A pressure relief valve communicates with the pressure reducer to prevent the pressure of the second fluid from decreasing below a third fluid pressure.

Starting device for IC engine - has starter motor and free run coupling with spring accumulator for damping thrust-form torque variations

Abstract: A sprung shock-absorbing device 28 in a starter motor drive train with an overrunning clutch 20 has an prestress torque of from 15 to 50% of the stall torque of the starting motor 11 and the torsional stiffness of the drive train without the device is at least four times that of the device The device 28 may be associated with the clutch 20 or the epicyclic speed reducer 14 Helical compression springs (30, Fig 2) may be prestressed between projections (31) on the speed reducer ring gear 15 and its housing 29 Wavy leaf springs (40, 45, Figs 5 to 7) or engaging multiple plate springs (52, 54, Figs 9 to 12) may replace the helical compression springs

Pressure reducer for an animal watering trough

Abstract: Pressure reducers (15) for animal watering troughs serve for reducing the water pressure of a water supply pipe which feeds the watering line to a defined, lower watering pressure. In contrast, water of a higher rinsing pressure is required for rinsing the animal watering troughs. For this purpose, the water supply pipe must be directly connected to the watering line via a bypass which bridges the pressure reducer (15). To avoid the bypass pipe, the pressure reducer (15) is constructed according to the invention in such a way that, by a suitable means, in particular a retaining device (47), the regulating device (46) of the pressure reducer (15) which reduces the water pressure is put out of operation in terms of functioning. The water from the water supply pipe can thus flow at non-reduced pressure through the pressure reducer (15) for rinsing the watering line.

Compact gear reducer for rotation through an angle in either directions

Abstract: A gear reducer for reciprocal rotation wherein the rotation of a motor 1 is transmitted to a worm pinion 4 integrated with an input shaft 2, and is further transmitted to a helical worm wheel 10. The helical worm wheel 10 and an eccentric member 11 are spline coupled to each other, and a pin flange 13 is rotated by a planetary gear structure of a trochoid-tooth-profile inscribing type. Consequently, a pinion shaft (output shaft) 14 integrated with the pin flange 13 rotates, and an outside gear 19 rotates.

Space-saving inching device

Abstract: An inching device for operation of a bucket elevator at lower than normal speed for inspection and maintenance comprises a first speed reducer having a frame, and a drive motor and a second speed reducer, both connected to input shafts of the first speed reducer, and supported on the frame of the first speed reducer, so that the entire assembly is supported by the base of the frame of the first speed reducer, thereby saving space, permitting assembly in advance of installation, and simplifying the overall structure of the device.

Design and Performance Evaluation of a Pressure-Reducing Device for Aerosol Sampling from High-Purity Gases

Abstract: Pressure-reducing devices are used to reduce the gas pressure from that existing in the high-purity compressed gas system to ambient conditions in order to measure the particulate contaminants. This study deals with the design and performance evaluation of a pressure reducing device. The pressure reducing device using an orifice plate geometry has been designed by calculating the design parameters taking into account low particle loss, compactness, and light weight. The pressure reducer is designed to operate at an upstream pressure up to 150 psig (1034.3 kPa) and for a variety of high purity gas types such as N2, O2, air, and Ar. For the University of Minnesota pressure reducer, the background was found to be 80% and decreased for larger particle size with 50% penetration at approximately 3 μm and 10% penetration at 5 μm. The experimentally determined particle pene...

Speed reducer with planocentric gear arrangement

Abstract: A two-stage speed reducer including a planocentric gear arrangement which has a rotatable output ring gear and a planet gear mounted within the ring gear for orbital movement. The teeth on the ring gear and the planet gear are tapered to permit axial adjustment of the planet gear with respect to the ring gear and thereby eliminate backlash between the two. Adjustment means is provided to permit axial adjustment of the planet gear with respect to the ring gear. After a period of use of the speed reducer, the planet gear may be readjusted axially relative to the ring gear to compensate for backlash created between the teeth of the planet gear and ring gear due to wear.

Thermal effect apparatus provided with a temperature indicator

Abstract: Thermal-effect apparatus (30) comprising a hot body and an indicator for visualising the temperature of the hot body, the indicator comprising, on the one hand, a temperature reducer (10) in plate form, one of the ends being in contact with the hot body and the other end being connected to an unheated part and, on the other hand, a substance (12) exhibiting a transition of a visual property, which substance is arranged on the temperature reducer at a location such that it undergoes its transition between ambient temperature and a so-called safety temperature at which the user may touch the hot body. By applying the same principle, a second substance may also be arranged on the temperature reducer so that this second substance undergoes a transition which demonstrates that the hot body has reached a so-called "ready for use" temperature. Application: clothes iron, hot plate, oven, toaster, heating appliance or the like.

Automatic rolling door

Abstract: The utility model discloses an automatic rolling door, comprising a door body 1, guide rails 5, a door opener 3, road wheels 4, guide wheels 6, and an electric control loop device The utility model has the advantages that a motor and a speed reducer are directly connected together, the volume is small, the outside of the motor and the speed reducer is covered with a protecting cover, the rain proof and the dust proof purposes can be realized, and the appearance is beautiful; a travel switch is arranged in the speed reducer, the structure is compact and the installation is convenient; a gear mechanism and a rack mechanism are adopted, the door body is operated stably, the noise is low, and two pairs of guide wheels with hard rubber are used to guide; the deflection of the movement of the door body can be limited, the abrasion can be reduced, and the noise can be reduced

Spiral vane forming machine

Abstract: The utility model relates to a spiral vane forming machine, belonging to the mill processing equipment of metal plate bands and disk materials. The spiral vane forming machine comprises an electric motor, a clutch, a gearbox, a chain gear group, a driving shaft and a worm-wheel worm reducer, which compose a driving device. Simultaneously, a pair of tapered rolls are added and respectively connected with the worm-wheel worm reducer of the driving device. Both sides of the tapered rolls are provided with feeding devices, guards and guide wheels. The utility model is suitable for continuously rolling carbon steel and stainless steel spiral vanes with various sizes for spiral conveyers. With one pair rollers, spiral vanes with different inner and outer diameters and different spiral pitches can be rolled out. The utility model is also suitable for rolling the cutter blades of a cutter and for a leather machine and the cutter blades of a fleshing machine. Not only is the production efficiency high and is the quality good, but also the utilization rate of materials is more than 95%.

Butt-rolling prilling machine

Abstract: The utility model relates to a butt-rolling prilling machine, mainly comprising a motor, a speed reducer, a cutter, a hopper and a frame. A set of butt-rotating rollers with arc grooves on the surface is mutually and movably matched, is connected with the speed reducer, and is arranged on the upper side of the cutter in the hopper; the hopper is provided with a scraper for cleaning the arc grooves on the surface of the butt-rotating rollers and a flow guide plate for assisting the material processing. The utility model adopts the butt-rotating rollers with the arc grooves uniformly distributed or crossly distributed on the surface and has the advantages of quality guarantee of the processed product, compact complete machine, simple structure, low manufacture cost, simple use and small ground occupation; the utility model is a prilling device to be popularized.

Gear reducer for reciprocal rotation

Abstract: A gear reducer for reciprocal rotation wherein the rotation of a motor 1 is transmitted to a worm pinion 4 integrated with an input shaft 2, and is further transmitted to a helical worm wheel 10. The helical worm wheel 10 and an eccentric member 11 are spline coupled to each other, and a pin flange 13 is rotated by a planetary gear structure of a trochoid-tooth-profile inscribing type. Consequently, a pinion shaft (output shaft) 14 integrated with the pin flange 13 rotates, and an outside gear 19 rotates.

Multi-layer spiral coiled pipe pipe bender

Abstract: The utility model relates to a pipe bender for a multi-layer spiral coiled pipe, comprising an electric machine, shaft couplings, a speed reducer, a bracket, a regulating screw pitch tyre, a steering tyre, a central shaft, and a regulating shaft. The electric machine (1) is connected with the speed reducer (3) through the shaft coupling (2); the speed reducer is connected with the central shaft (11) through the coupler (4); the central shaft (11) is fixed on the bracket (5); one end of the central shaft (11) is provided with the steering tyre (10), and the regulating shaft (12) is arranged under the central shaft (11); the regulating shaft is provided with the regulating screw pitch tyre (7).

Incandescent globe power reducer

Abstract: A power reducer (10) comprising an adaptor (11) and a reducer circuit (12) for coupling between an incandescent globe (13) and a socket (14). The power reducer (10) reducing the voltage of operation and/or the in-rush current experienced by the incandescent globe (13) at turn-on for extending the operating life of the incandescent globe (13). An incandescent globe including the power reducer (10) is also described. During normal running the incandescent globe (13) operates substantially at its full rated power.

Eccentric differential type speed reducer

Abstract: PURPOSE: To provide an eccentric differential type speed reducer free to change over a reduction ratio and to simplify constitution and reduce cost of a power transmission system using it. CONSTITUTION: This is an eccentric differential speed reducer to eccentrically and differentially move external gears 6A, 6B supported by a crankshaft 8 around the central axis of an internal gear 1 and to take out an speed reducing output from the internal gear 1 or a carrier 11. Its input means 20 has an input shaft 19 arranged coaxially with the central axis of the internal gear 1, a front step speed reducing mechanical part 21 consisting of a small gear 31 with a specified number of teeth supported by the input shaft 19 free to rotate and a large gear 32 having more teeth than the small gear 31, a crank cam 22 supporting the external gears 6A, 6B with the same eccentric amount as the crankshaft 8 free to circularly move and a clutch mechanical part 23 to selectively transmit rotation of the input shaft 19 to either of the small gear 31 and the crank cam 22 by changing-over. COPYRIGHT: (C)1995,JPO

Vibration restricting method for overhead crane

Abstract: PURPOSE: To restrict vibration in a higher harmonics mode by providing an active type dynamic vibration reducer and a vibration detector on a movable carriage provided with a lifting mechanism which moved on a girder, and controlling the dynamic vibration reducer based on detection values of vibration detected by the vibration detector. CONSTITUTION: A movable carriage (crab) 20 having a hoisting mechanism 22 to hoist a suspended load 40 through a wire 41 which moves on a girder 10 is provided with an active type dynamic vibration reducer 3 comprising a load mass screwed with a ball screw 32 rotated by a servo motor 31, and an acceleration detector 21 as a vibration detector. In performing inching operation or the like in hoisting the suspended load, vibration acceleration of the girder 10 composing a main vibration system is detected indirectly by the acceleration detector 21, and a speed signal is obtained by an integrator 36 based on its detection signal. This speed signal is sent to a DC amplifier 35, and an amplified signal is applied through a servo driver 34 to the dynamic vibration reducer 3 for driving to generate inertial force in accordance with a vibration speed. COPYRIGHT: (C)1994,JPO

Separator material for high temperature type fuel cell

Abstract: PURPOSE:To provide a separator material for a high-temperature type fuel cell, which provides sufficient stability and corrosion resistance to each of high-temperature corrosive gases both on the side of oxidizer gas and on the side of reducer gas and also is free of such deformation as a warp, a curve and the like, and also free of peeling or the like, while the strength and conductivity of the separator material are kept respectively at given levels. CONSTITUTION:In a separator material composed of a metal radical component forming metal, an alloy or an intermetallic compound, and also a ceramics component, a portion of the separator material on the side of oxidizer gas is rich in the ceramics component while a portion thereof on the side of reducer gas is rich in the metal radical component, and the composition of each of the components for the separator material is inclinedly changed in succession or in stages from the side of oxidizer gas to the side of reducer gas.

Arm connecting device for industrial robot

Abstract: PURPOSE:To simplify the machining and reduce the assembling mandays in addition to reducing the weight of the base arm and joint arm of an industrial robot and simplifying its structure. CONSTITUTION:A joint arm 5 is rotatably mounted to the output side face of the fitting flange 8 of a speed reducer 7 through a rotary bearing 6, and the input side face of the fitting flange 8 of the speed reducer 7 is mounted from the front part of a base arm 1. Accordingly, there is no need to provide a rotary bearing mounting housing to be extended from the base arm 1 so as to reduce the weight of the base arm 1 and joint arm 5 and to simplify structure. In addition, since the mounting face of the speed reducer 7 is placed at the front face of the base arm 1, the machining of the mounting face can be made simple, and assembling mandays can be reduced.

Freezing cycle device

Abstract: PURPOSE:To simplify a design and assembling work and hence improve reliability by reducing a flow passage sectional area of a downstream refrigerant flow passage pipe in a condenser compared with that of another refrigerant flow passage pipe to ensure a pressure reducing function. CONSTITUTION:A partitioning plate 32 is provided in header pipes 27, 28 to partition flattened pipes 29 of a predetermined number. A partitioning plate 32a is provided between the most downstream side flattened pipe 29a and an adjacent flattened pipe 29 in the header pipe 28 to permit the most downstream side flattened pipe 19a as a pressure reducer. Although any through-holes are provided through the flattened pipe 29 in order to increase a contact area between a refrigerant and the flattened pipe 29, the number of those through-holes are reduced for the use of the flattened pipe 29 as the pressure reducer. Hereby, a condenser and the pressure reducer are integrally assembled between a pair of the header pipes. Thus, there is eliminated the need of parts such as a capillary tube and the like, and hence there is also reduced the number of parts. Further, there is eliminated a welding process to reduce the manufacturing cost.

Two-stage balanced phase-regulating beam-pumping unit

Abstract: The invented oil pumping unit has additional phase regulating device and crank balance weight for direct linkage mechanism of main crank based on various beam-pumping units. Besides all the merits the beam pumping unit has, it has a greatly reduced peak torque of speed reducer, so featuring elimination of negative work and high comprehensive efficiency.

Ophthalmic lens removal apparatus

Abstract: Apparatus for reducing the size of an object (41) disposed in a generally closed fluid medium includes a hand piece (63) having an axis extending from a housing (64) at a proximal end to a probe (65) at an opposing distal end. A reducer (179) at the distal end of the probe (65) is adapted for insertion into the fluid medium (201) where it is rotatable to reduce in size the object (41). The reducer (179) is configured to create a fluid flow (202) in the fluid medium (201) so that the end piece (63) can be maintained laterally and axially stationary while the object (41) is moved (203) by the fluid flow (202) into contact with the reducer (179). An associated method includes the steps of rotating the rotary member (179) at a speed sufficient to reduce the size of the object (41), and in a manner to produce a flow (202) of the fluid (201) sufficient to move (203) the object (41) into the rotary member (179).

Press slide locking apparatus

Abstract: An installable slide locking apparatus is installable on a press mechanism so as to lock a press slide of the press mechanism in any of a plurality of positions. The press mechanism includes a gear train means rotatably drivable so as to reciprocate the press slide. An installable slide locking mechanism, which includes a gear reducer and a locking gear, is mounted adjacent an opening made the gear train housing. The gear reducer meshes with an input gear of the gear train, thereby preventing rotation of the gear train when the locking gear is moved to a locking position with respect to the gear reducer.

Speed. reducer with conjugate driving between roller and alligatoning ring

Abstract: This conjugate driving speed reducer with roller tooth ring is comprised of harmonic device, fixed gear and moving gear. A conjugate curve is set on fixed gear and a group of rollers (or balls) is arranged on moving gear, both of which form a drive engaging set. It features smooth operation, low noice and high transmission efficiency (up to 90%). The speed reducer has small size and long service life and is uitable for heavy load transmission.

Reducer for boiler

Abstract: The utility model provides a novel speed reducer for a boiler, which adopts a transmission way of a double stage planet gear and a safe clutch which are connected in series and a closed type planet frame structure so as to overcome the defects that multi-stage speed reduction is needed by a traditional speed reducer for a boiler and a bulky structure of a multi-layer box body is arranged. The utility model has the advantages of small size, light weight, compact structure, low cost, small matching power of a motor, high transmission efficiency, etc. Besides, the utility model is suitable for transmission under the requirements of high torsion and high speed ratio, especially suitable to be used as a speed reducer for a boiler grate.

Multi-working position antomatic machine tool for reducer valve-body

Abstract: The utility model relates to a multiple station antomatic machine tool for the valve body of a reducer. The utility model is provided with a plurality of working station, and each station is provided with a clamping fixture and a mechanical hand. The clamping fixtures and the mechanical hands of the working stations are arranged in a straight line. Each clamping fixture is installed on a machine tool body, and each mechanical hand is installed on a sliding wall which is arranged on a cross beam above the machine tool body. Power heads are arranged on the working side face of each clamping fixture. Each power head is provided with a tool bit and a tool bit driving and reversing mechanism, and a chip cleaner is arranged between each clamping fixture and each power head. The utility model is convenient for taking and putting workpieces and is convenient for repair.