Showing papers on "Reducer published in 1996"

Drive apparatus with a resilient coupling for a power seat

Abstract: A drive apparatus includes an electric motor, a speed reducer and a coupling member located between the motor and the speed reducer. The output shaft of the motor and the input shaft of the speed reducer are provided with longitudinally extending grooves having a square or rectangular cross section in which barrel members having the mating cross section are inserted, respectively to absorb any gap therebetween. The box like barrel member has four segments which are brought into resilient contact with the groove.

Method and system for providing relevance-enhanced image reduction in computer systems

Abstract: The present invention provides a method and system for providing relevance-enhanced image reduction in computer systems. Using such a method and system, information including images can be displayed in a display area that is smaller than the display area for which the information was designed while accurately conveying the overall content of the information. A computer system in which the present invention operates includes a computer connected to a display device and a secondary storage device. A reducer is stored in the secondary storage device for execution by the computer. Additionally, data regarding an image to be displayed on the display device is stored in the secondary storage device. In operation, the computer receives data regarding an image to be displayed from the secondary storage device. The reducer reduces the image by first cropping the image and then scaling the image. Lastly, the computer displays the reduced image on the display device. In order to reduce the image, the reducer initially determines a total reduction factor by which the image is to be reduced. The reducer then determines a center of relevance of the image. Next, the reducer determines a cropping reduction factor by which the image is to be cropped and crops the image around the center of relevance by the cropping reduction factor. Lastly, the reducer determines a scaling reduction factor by which the cropped image is to be scaled and scales the cropped image by the scaling reduction factor.

Variable-speed transmission

Abstract: FIELD: mechanical engineering, mining industry, industrial engineering SUBSTANCE: variable-speed transmission has common transmissions, normally tree differentials and one reducer, which are connected to automatically provide required torque of output shaft without using special devices Transmission allows continuously variable transmission ratio within the range of 0 to indefinite value to be provided EFFECT: wider operational capabilities, increased efficiency, reduced production cost, enhanced reliability in operation, improved running characteristics of vehicles using the transmission 2 cl, 6 dwg

Aligning system and machine for a double enveloping speed reducer

Abstract: A method for assembling a double enveloping speed reducer assembly includes predetermining the thickness of the shims required to properly position a worm assembly and a worm gear assembly in the speed reducer such that the double enveloping worm spiral and the worm gear mesh at their centers of curvature. By predetermining the thickness of the shims, the speed reducer can be assembled without guesswork. The shim thicknesses are determined, in part, by determining the distance the center of curvature of both the worm spiral and the worm gear to preselected surfaces of the worm assembly and worm gear assembly. The method also includes placing the speed reducer housing and at least one of the bearing brackets for both the worm assembly and the worm gear assembly in gauges to determine various dimensions of the housing and brackets. The measured dimensions are then used to calculate the appropriate shim thicknesses, the shims are placed adjacent a surface of the brackets, and the speed reducer is assembled. A gear gauge is provided for locating the center of curvature of the worm spiral and worm gear.

Tubing friction reducer

Abstract: A tubing friction reducer is mounted on a length of tubing within a bore hole. The friction reducer includes a cylindrical body having a first section and a second section hingedly secured around an exterior surface of the coiled tubing, the cylindrical body having an outside diameter larger than an outside diameter of the coiled tubing and less than an inside diameter of an adjacent bore surface. A plurality of roller bearings positioned on and extending outwardly from the cylindrical body extending in a generally axial direction along the cylindrical body for the purpose of reducing friction between the coiled tubing and the bore surface generated upon contact between the coiled tubing and the bore surface. Retaining mechanisms such as collapsible springs are included for securing the roller bearings to the cylindrical body. The tubing friction reducers are placed along the tubing at intervals to either minimize injector force, prevent buckling, and tubing failure, due to buckling or wear.

Trocar reducer system

Abstract: A novel reducer system is provided for a trocar cannula. The reducer system fastens to the cannula end and a living hinge allows a reducer cap to be closed over the cannula lumen to allow the cannula to be used with smaller diameter surgical instruments. By fastening the reducer system to the exterior of the cannula end, the system can be placed in position on the cannula prior to surgery, even while a large diameter obturator is used with the cannula.

Motor with gear reducer, and assembly method and maintenance method for same

Abstract: A motor with a gear reducer includes a housing, a stator secured to the housing and having an inner periphery thereof defining a central space therein, and a rotor formed of a magnet material and rotatably fitted in the central space of the stator. The rotor has an axial through hole formed therein in coaxial relation to an axis of rotation of the rotor. An output shaft is connected through a gear reducer to the rotor to be rotatively driven thereby, for outputting a rotating output from the rotor through the gear reducer. The output shaft extends through the axial through hole of the rotor and is rotatably supported by opposite ends of the housing. The rotor has a gear forming part of the gear reducer formed thereon at one end thereof, and a hook formed thereon at another end thereof and engageable with a moving device such as an assembly jig in an axial direction of the output shaft.

Exercise physical rehabilitation and testing method and apparatus with cycloidal reducer

Abstract: The present invention discloses an exercise, rehabilitation and extremity testing method and apparatus having a cycloidal speed reducer. A multiposition chair is rotatably mounted to a stand which is slidingly mounted to a track on a platform. A dynamometer is mounted on a pedestal on the platform such that it is capable of rotating about a horizontal axis and a vertical axis. The vertical height of the dynamometer can also be adjusted. An input apparatus capable of engaging the limb or body segment of a user is mounted to an input shaft of the dynamometer. A motor controls the movement of the input shaft through a cycloidal speed reducer. Consequently, the motor controls the movement of the input arm and the user's limb or body segment. The user exercises his muscles by applying force to the input apparatus according to a number of different protocols.

Cycloidal gear driving mechanism and apparatus

Abstract: The full-cycloidal gear mechanism basically features that the tooth profile of its gear is full cycloid and its original tooth profile is complete cyclic cycloids that do not contain cusp and are alternatively distributed at both sides of baseline. The internally or externally engaged, or single- or multi-tooth-difference drive mechanism made of such gear set, such as speed reducer or rotor pump has the advantages of small press angle, slide and abrasion, high efficiency and strength, light weight, low noise and adaptability to high speed and heavy load.

Motorized roller shutter

Abstract: The motorised roller shutter comprises a braked motor reducer (5) rotating a shutter winding tube (2) held at its ends (6,8) by support webs (3,4) A declutching coupling (11) is interposed between the motor reducer output shaft (10) and the winding tube This enables, in the de-clutched position, the free rotation of the tube relative to the reducer under the influence of a force exerted directly on the shutter A return spring (12), constrained during unwinding of the shutter, exerts a return couple on the winding tube This causes tube rotation in the direction of shutter winding when a push is exerted on the shutter to open it The winding tube is rotated by the reducer

Motor with speed reducer having reversal prevention mechanism

Abstract: A motor is provided with a speed reducer. The motor includes a rotatable motor shaft having an end face and a threaded portion. The speed reducer includes a gear for communicating with the threaded portion of the motor shaft. A speed reduction case encloses at least a part of the speed reducer and includes a thrust receiving portion facing the end face of the motor shaft. An end spacer is disposed between the thrust receiving portion of the speed reduction case and the end face of the motor shaft. The end spacer includes a press-fitting portion secured at the thrust receiving portion of the speed reduction case to prevent the end spacer from rotating relative to the speed reduction case. The end spacer also includes a protrusion. A thrust force applied to the motor shaft presses the end face of the motor shaft to the protrusion of the end spacer to brake the rotation of the motor shaft by friction.

Strip bending apparatus

Abstract: The utility model relates to a strip shape material bending apparatus, comprising a body for holding components, a power reducer driven by a bending and resetting power device, a bending roller group for guiding and joining the power of the power reducer and making a roller thread out the table plate of the body to move in arc shape, a profile modeling group and a bending detection device. The columnar mould and limit plate of the profile modeling group stand uprightly on the table plate of the body, the roller and a limit plate are positioned at the same side of a strip shape material, and the columnar mould is positioned at the other side. The angular value of the roller bending and processing the strip shape material which is detected by a detection tray and a sensor is collated with a preset value, power transmission for operating the power reducer makes the automatic bending strip shape material return to a position before processing, and the material is to be operated again.

Shaft sealing structure of gear motor

Abstract: PROBLEM TO BE SOLVED: To provide a shaft sealing structure of a gear motor which can extend the life of a motor shaft oil seal by preventing foreign matters such as metal powder included in lubricating oil at the speed reducer section side from entering a lip between a motor shaft and the motor shaft oil seal, and which is low cost. SOLUTION: Between a speed reducer section 3 and a motor shaft oil seal 12 which, being located in a through hole of a partition wall 5 which separates a motor section 2 and the speed reducer section 3, airtightly seals a bearing 11 of a motor shaft 6, a thin plate-like filter 13 is installed which has, in the center, a hole 13A to pass the motor shaft 6 through and which allows the circulation of lubricating oil and prevents foreign matters such as abrasive metal powder coming in from the speed reducer section side to the motor shaft oil seal 12 side. COPYRIGHT: (C)1998,JPO

Bleeding reducer for cement-based grouting material

Abstract: PURPOSE: To obtain an agent intended to suppress the bleeding and secure the fluidity of a mixture of soil and a curing agent, by blending water-glass with a water reducing agent for cement. CONSTITUTION: This bleeding reducer for cement-based grouting materials is obtained by blending 100 pts.wt. of water-glass with 1-20 pts.wt. of an active ingredient, i.e., a water reducing agent for cement. An aqueous solution containing 0.2-10 pts.wt. of this bleeding reducer is added to 100 pts.wt. of cement followed by addition of sand and clay, and the resultant mixture is kneaded under agitation in a mixer to prepare a blend slurry, which is, in turn, injected into the ground by high-pressure injection method to stabilize the ground.

Duplex planetary gear speed reducer

Abstract: The utility model relates to a duplex planetary gear speed reducer which is mainly composed of a machine casing, a belt pulley, an input shaft, a planetary frame, a planetary wheel, a central gear and an output tooth shaft, wherein, the belt pulley drive the planetary frame through the output shaft in the machine casing, and at least two duplex teeth difference planetary wheels are installed on the outer ring of the planetary frame; the planetary wheels are engages on the fixed central gear and drives the output tooth shaft through the gear teeth of a tooth shaft. Because the planetary wheel has two segments of gear teeth, the numbers of the gear teeth of the central gear and the gear teeth of the output tooth shaft is different with each other, so the ratio speed is large, and additionally, a plurality of planetary wheels are driven simultaneously, so the specific pressure of a single tooth surface is small and the driving stability is high.

Tandem planetary gear differential sped reducer

Abstract: The utility model relates to a duplex planetary gear differential speed reducer which is a speed changing mechanism in mechanical transmission. The utility model is characterized in that an input and an output shafts are in a coaxial line and are sheathed together, and a front and a back sun gears are fixed on the input shaft on which a gear ring frame is sheathed. A front planetary shaft is fixed on a front cover and a front planetary wheel is sheathed on the front planetary shaft; a back planetary frame and the output shaft form integration; a back planetary shaft is fixed on the back planetary frame, and a back planetary wheel is sheathed on the back planetary shaft. Because of using the tooth number difference between two planetary rows to realize deceleration, the utility model has the advantages of a few parts, small size and large speed ratio, compared with a same-stage speed reducer, the speed ratio can be enhanced by five to ten times, and the transmitting ratio can be selected from 10: 1 to 300: 1.

Gear reduction unit

Abstract: The utility model relates to a gear transmission device for transferring rotation movement, particularly a gear speed reducer. A gear (2) is fixed on the casing (5) of the speed reducer, and an input shaft (1) passes through the gear. One end is provided with a shaft journal which forms an included angle with the rotation axis of the input shaft, and the other end is supported by a bearing. A nutation gear (3) is a double-faced bevel gear, which is installed on the rotor journal of the input shaft through the bearing. An output gear shaft (4) is a gear shaft with bevel teeth. One face of the nutation gear (3) meshes with the stationary gear (2), and the other face meshes with the bevel teeth on the gear shaft (4). The utility model has the advantages of small amount of driving members, simple structure and strong mechanism rigidity and reliability, and the amount of driving members is not increased even if the reduction ratio is increased. Besides, all the gears do not need special processing.

Wheel drive device with hub speed reducer

Abstract: PROBLEM TO BE SOLVED: To supply lubricating oil for lubrication of a speed reducer to an inward bearing chamber by drilling a first oil passage to communicate a speed reducer storage chamber to the inward bearing chamber on a spindle member. SOLUTION: Lubricating oil sealed in a speed reducer storage chamber 66 is directly supplied to an outer hub bearing 30 in the inside of a front bearing chamber 78 communicated to the speed reducer storage chamber 66. Additionally, a part of lubricating oil in the speed reducer storage chamber 66 flows to a clearance between an outer peripheral surface of a wheel drive shaft or a constant velocity coupler output shaft 14 and an inner peripheral surface of a spindle member 20 or to the inside of a passage 24, and it is supplied to an inner hub bearing 32 from a first oil passage 82. Lubricating oil lubricating the inner hub bearing 32 is circulated to the speed reducer storage chamber 66 through a second oil passage 84 in the inside of a wheel hub 34. That is, as the first oil passage 82 is opened to one end side of a roller axis of the inner hub bearing 32, lubricating oil flows in a roller raw by centrifugal force and carries out lubrication.

Coiled tubing friction reducer

Abstract: A tubing friction reducer (32) is mounted on a length of tubing within a bore hole. The friction reducer (32) comprises a cylindrical body (34) having a first section and a second section hingedly secured (40) around an exterior surface of the coiled tubing (18), the cylindrical body (34) having an outside diameter of an adjacent bore surface. A plurality of ball bearings (88) are positioned on and extending outwardly from the cylindrical body (34) extending in a generally axial direction along the cylindrical body (34) for the purpose of reducing friction between the coiled tubing (18) and the bore surface generated upon contact between the coiled tubing (18) and the bore surface. Retaining mechanisms such as collapse springs (92) are included for securing the ball bearings (88) to the cylindrical body (34). The tubing friction reducers (32) are placed along the tubing (18) at intervals to either minimize injector force or prevent buckling and tubing failure due to wear.

Annular split-type steel-pipe cutting machine

Abstract: The utility model relates to an annular split-typed steel pipe cutting machine, comprising a base, a split-typed gear disc mounted on the base, a cutting knife and a slope knife used for cutting steel pipes arranged on the gear disc as well as a power section and a reducer 7. The utility model is characterized in that the base is an annular open architecture composed of two half annular shapes in splice joint; the reducer adopts a quadric retarding mechanism of a worm wheel, a worm gear and a helical gear. The utility model has the advantages of convenient assembly and disassembly, good cutting quality and smooth running, etc., avoiding closing down of cutting knives.

Increased Pipeline Throughput using Drag Reducer Additives (DRA): Field Experiences

Abstract: Drag reducer additives (DRA) to increase pipeline capacities have been used extensively on the Oseberg Field in the North Sea since 1991. This paper describes different tests that have been performed to find the best and most cost-effective drag reducing chemical. The tests have been carried out in the 75 mile 28 in. crude oil pipeline from Oseberg Field Center to Sture on the Nonvegian coast, and in the 9.5 mile 14 in. multiphase pipeline carrying full wellstream fluid from Oseberg C to Oseberg Field Center. Both conventional gel-type DRA, and a new generation type additive have been used. The new generation DRA is an emulsified powder-product with a polymer content of about 20-25%, as compared 10 conventional gel-type product with a polymer content of about 5-8%. This new type turns out to be about four times more efficient than conventional gel-type DRA, and gives a cost-saving of about 25% compared to conventional type products. This paper also describes a method to measure drag efficiency as a function of linefill, and shows the relationship between injection rate of DRA and wax-deposits in a pipeline. Use of drag reducing chemical has increased capacity of the Oseberg Transportation System (OTS) by 25% from 620,000 bopd to 770,000 bopd. While use of conventional DRA had no effect on capacity of the multiphase pipeline (MTS), test results using the new generation DRA have shown a reduced pressure loss in the line of about 50%, corresponding to about 10% capacity increase.

Hospital gas supply system using bottles or cylinders

Abstract: A shut-off is provided between compact block and gas mains. It consists of a pressure reducer which can supply gas above the switch to the consumer at safety pressure. This pressure may be lower than mains but fully sufficient for the customer. The pressure reducer only supplies gas in a case where the pressure at the switch output falls to or beyond the safety pressure. The compact block includes a coupling (73) and non-return valve (74) so that coupling devices (101-104) can fill as adapted to the coupling. The block passes signals relating to the gas in-bottle pressure to a control or alarm point.

High pressure reactor esp. for disposal of waste CFC or PCB

Abstract: A high pressure reactor installation has means for injecting the fluid to be treated, including water or hydrothermal solvent, reaction promoter, etc., a reactor (36) with a heater and a pressure reducer (39) for releasing the fluid. The reactor (36) consists of a coiled pipe (41).

System for coupling worm speed reducer to motor

Abstract: A system for coupling a motor with a worm speed reducer in which the work hours for assembling the worm speed reducer to the motor can be reduced, and the size and the weight of the reducer can also be minimized. A side of the worm speed reducer case 2 coupled to the motor case 1 is made to comprise an open face and through the open face, a worm gear G is installed inside the speed reducer case 2. A worm W is formed on the circumference of a projected free end of a motor spindle 7 and the bearings for the motor spindle 7 are mounted in a motor case flange 9. The open face of the speed reducer is covered with the flange 9 and the reducer case and the flange 9 are firmly clamped by bolts, thus releasably coupling the motor to the speed reducer.

Manufacture of motor with speed reducer

Abstract: PURPOSE: To provide a method for manufacturing a motor with a speed reducer wherein the motor and a housing which houses a gear speed reducer can share their constituent components easily. CONSTITUTION: A partition plate 63 constitutes a housing 60 with an outside case 61 of the standard specification and an inside case 62 of the standard specification. On one face of the partition plate 63 which faces the inside case 62, a stator mounting section 73a and an extended section 73d are integrally formed. On the other face of the partition plate 63 which faces the outside case 61, an extended section 73b, a partition wall 73c, and a recess for a bearing 21 are integrally formed. An amount of extension of the extended section 73d can be varied according to an increase in the thickness of a stator 7 and is set larger than that of the standard specification. An amount of extension of the extended section 73b and of the partition wall 73c can also be varied according to an increase in the thickness of gears 5a, 5b, 5c, and 5d and is set larger than that of the standard specification.

Automatic punch press for rolled materials

Abstract: The utility model relates to an automatic punch press for rolled materials, which comprises a motor, a speed reducer and a punch press, wherein, the speed reducer drives a material discharging device, and both sides of a working table mould of the punch press are provided with guide ways with same height The front ends of the guide ways are arc-shaped guide ways, and the back parts are provided with feeding claw mechanisms The back lower part of a machine tool is provided with a mechanical material taking hand, and the tail ends of the guide ways are provided with waste collectors The utility model can manufacture rolled materials, the yield is high, and the mechanization degree is high

The digital wetgate : a third-generation noise reducer

Abstract: This paper describes the development of noise-reduction technology and addresses its applications. First-generation noise reducers using linear filtering techniques such as recursive or transversal filters were designed for removing film grain noise or tape noise of analog VTRs. With the introduction of nonlinear median filtering techniques it became possible to conceal impulse-type noise such as film dust, randomly dispersed film scratches, or FM sparkles. A third-generation noise reducer now has been developed by BTS. By the use of advanced techniques for error detection and motion adaption it is now possible to conceal large film dirt or fixed vertical film scratches - so-called tramline scratches. A wide range of new features especially designed for film reproduction, such as automatic pulldown and scene-change detection, provide great concealment power in the digital wetgate.

Bottomhole reducer for oil well

Abstract: The utility model relates to a vertical type speed reducer at the bottom of an oil well. A gear speed reduction mechanism is arranged on the middle part of a barrel shape shell body whose diameter is less than of the diameter of the bushing of an oil well, and an input shaft and an output shaft which are connected with the gear speed reduction mechanism are respectively supported by bearings. The gear speed reduction mechanism and the output shaft are also provided with thrust bearings. A pressure adjustment mechanism is sheathed on the input shaft which rotates at a high speed. The telescopic film of the pressure adjustment mechanism is deformed according to the temperature of lubricating oil. A base with an installation hole is arranged at the bottom of the barrel shape shell body. The protective ring of an end cover is provided with an installation hole. Mechanical sealing devices are respectively arranged between the input shaft and the output shaft are respectively, and the base and the end cover. The vertical type speed reducer at the bottom of an oil well is installed in a submersible oil electrical pump device for exploiting thick oil, and a submersible oil motor and a screw pump realize non-rod connection. A phenomenon that the transmission long shaft of the existing power thick oil exploitation device above a well is broken is thoroughly solved, and pump efficiency is fully exerted.

Rod-free screw pump oil extraction equipment

Abstract: The rodless screw pump oil-production equipment includes motor, reducer, outlet support and bearing box which are combined into ground driving device Said invention uses oil pipe to drive stator to directly make it rotate, and its rotor is connected with rotor brake through axial support and shaft coupler and can be braked It is mainly characterized by that its downhole has no oil-pumping rod, stator can be rotated, and its rotor can be braked, and the rotated stator and non-rotated rotor form the cavity effect, so that it can produce oil-pumping action

Electric vehicle cleaner

Abstract: The utility model relates to an electric vehicle wiping device, comprising a water barrel 4, a water pump 5, a speed reducer 2 and a vehicle wiping disc 1. The speed reducer 2 and the vehicle wiping disc 1 are connected by a hollow rotating shaft 16 whose inner part is provided with a hollow pipe 18, the hollow pipe 18 is connected with the water pump by a water pipe 3, the speed reducer 2 is composed of a worm wheel 11 and a worm 12, and a vehicle wiping wheel 1 can be a brush disc which is composed of brush bristle and a hard disc 14 and can also be a waxing disc or a polishing disc or an ash wiping disc which is composed of sponge, elastic fiber, cloth strip or sponge which is coated by soft cloth, wool and a hard disc. When the brush disc is used for wiping a vehicle, the water pump 5 and the motor 8 of the speed reducer are started at the same time, when the waxing disc or the polishing disc and the ash wiping disc is used, people have no need of starting the water pump.