Patents
Literature
Eureka-AI is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Eureka AI

6707 results about "Reduction drive" patented technology

A reduction drive is a mechanical device to shift rotational speed. A planetary reduction drive is a small scale version using ball bearings in an epicyclic arrangement instead of toothed gears. Reduction drives are used in engines of all kinds to increase the amount of torque per revolution of a shaft: the gearbox of any car is a ubiquitous example of a reduction drive. Common household uses are washing machines, food blenders and window-winders. Reduction drives are also used to decrease the rotational speed of an input shaft to an appropriate output speed. Reduction drives can be a gear train design or belt driven.

Dual-clutch transmission applied to hybrid electric vehicle and application method thereof

The invention relates to a dual-clutch transmission applied to a hybrid electric vehicle, wherein an output shaft of a motor/generator is connected with a first driving gear and a second driving gear through a double clutch respectively; an engine shaft of an engine is connected with an engine driving gear through an engine clutch; a second driven gear is meshed with the second driving gear and the engine driving gear respectively and connected with a first driven gear and a main reduction driving gear respectively through a synchronizer; the first driven gear is meshed with the first driving gear; the main reduction driving gear is meshed with a main reduction driven gear; the main reduction driven gear is mounted on a differential mechanism; a first gear clutch starter and a second gear clutch starter are connected with the double clutch respectively; and an engine clutch starter is connected with an engine clutch. The invention further relates to an application method of the dual-clutch transmission. The dual-clutch transmission applied to the hybrid electric vehicle has the advantages of unique design, simple structure, environmental friendliness, high driving range, economical efficiency, and good dynamic property, and generates enormous social and economic benefits.
Owner:SHANGHAI ZHONGKE SHENJIANG ELECTRIC VEHICLE

Robot clamping carrier

ActiveCN101915003AReduce civil costGood action consistencyParkingsMotor speedDrive wheel
The invention relates to a robot clamping carrier which comprises two carrying trolleys which are symmetrically distributed, have the same structure and are used for respectively clamping front wheels and rear wheels of a vehicle, wherein each carrying trolley is provided with a synchronous clamper with two pairs of mechanical hands; the two carrying trolleys are connected through a telescopic bending arm; each carrying trolley is internally provided with an electrical positioning system for detecting the positions of the front wheels and the rear wheels of the vehicle and comprises a trolley body, a walking drive motor speed reducer, a chain wheel, a chain, a driving wheel, a driving wheel shaft, a tensioning wheel, a driven wheel and a guide mechanism; each synchronous clamper comprises a clamping framework connected with the trolley body, an upper cover plate, a clamping motor speed reducer fixed on the upper cover plate, a worm shaft I, a worm shaft II, a worm gear I, a worm gear II, a spindle and mechanical hands; and each clamping motor speed reducer is simultaneously connected with the worm shaft I and the worm shaft II to drive respective worm gear pairs and mechanical hands to rotate along the spindles. In the invention, the positions of the rotating spindles of the clamping mechanical hands are fixed without moving; a single motor controls a group of mechanical hands, which ensures that the motions are synchronous, and the structure is simple and reliable; meanwhile, the defects of carriers in a carrier plate type and a comb tooth exchange type are overcome; and the robot clamping carrier has the advantages of high vehicle access speed, good rigidity, low civil engineering cost, and the like.
Owner:北京航天汇信科技有限公司

Compact quick-change mechanism of robot for minimally invasive surgery

ActiveCN102119872AReliable designThe total length of the closed-loop transmission remains unchangedDiagnosticsSurgical robotsReliable transmissionLocking mechanism
The invention discloses a compact quick-change mechanism of a robot for minimally invasive surgery. The compact quick-change mechanism is composed a quick-change box and a quick-change base, and mainly comprises four groups of transmission mechanisms, a limiting and locking mechanism, a driving system and the like, wherein the connecting part of the quick-change box is connected with the tail end of an instrument with a wrist function through a rotating axis, and the quick-change box can quickly slide along a concave chute of the quick-change base, thereby realizing replacement of surgical instruments; the quick-change box sliding into the quick-change base is limited and fixed by the limiting and locking mechanism installed at the tail end of the quick-change base; the four groups of transmission mechanisms are in similar structures, and finally realize four degrees of freedom of the tail end of the instrument in a wire transmission mode respectively by a servomotor; a transmission steel wire can be fixed and tensioned by a wire fixing wheel assembly in each transmission mechanism; and the driving system is composed of a servomotor and a harmonic speed reducer, and is fixed on the base frame of the quick-change base through threaded connection. The compact quick-change mechanism disclosed by the invention has the advantages of compact structure, light weight, reliable transmission, high quick-change efficiency and the like.
Owner:SHANDONG WEIGAO SURGICAL ROBOT CO LTD

Integrated electric wheel drive unit for electric automobile

The invention discloses an integrated electric wheel drive unit for an electric automobile, which comprises a disc motor, a motor controller, a battery unit, a whole vehicle electronic control unit ECU, a vehicle bridge and a brake caliper, wherein the brake caliper is fixed on a motor shell and matched with a rotor and brakes the rotor to rotate; the rotor is fixed at one end of a motor rotor shaft, while the other end is fixed on a vehicle wheel hub of a tire through a bearing; a stator is fixed on the motor shell which is fixed with the vehicle bridge; the whole vehicle electronic control unit ECU, the battery unit, the motor controller and the stator are connected with each other in turn through a high voltage wire bale; and the whole vehicle electronic control unit ECU is also in signal connection with the motor controller which is in signal connection with the brake caliper. The invention saves the conventional clutch, the conventional gear box, the conventional main speed reducer, the conventional differential mechanism and other components, simplifies the structure of the whole vehicle, improves the transmission efficiency, and can realize the electronic differential speed control of an electric wheel by control technology.
Owner:SOUTH CHINA UNIV OF TECH

Scale measuring device for pitching dynamic derivative experiment

The invention provides a scale measuring device for a pitching dynamic derivative experiment. An electric motor is arranged in a motor support rod; a motor output shaft is connected with a transmission shaft via a speed reducer and a shaft coupling; the transmission shaft is rotationally connected with a scale support rod; the rear end of the scale support rod is fixedly connected with the front end of the motor support rod; the front end of the transmission shaft is provided with an eccentric wheel which is provided with a lug; the lug is inserted into a sliding chute of a slide block; upper and lower cross springs of a cross spring scale have a crisscross structure respectively, and the front and rear ends thereof are fixedly connected with a scale frame via a front seat; and central positions of the upper and lower cross springs are provided with supporting cylinders. The scale measuring device for the pitching dynamic derivative experiment is a novel pitching dynamic derivative scale device. A pitching direct derivative of an aerial craft and a rolling crossover derivative induced by yaw oscillation can be measured under a big attack angle by designing a special vibrating mechanism, the cross spring scale and a pitching five-component scale structure. The scale measuring device for the pitching dynamic derivative experiment can meet the requirement of a wind tunnel trial.
Owner:SHENGYANG AERODYNAMIC INST AVIATION IND CORP OF CHINA

Comprehensive performance resting experiment table for precision speed reduction device

The invention discloses a comprehensive performance resting experiment table for a precision speed reduction device. The comprehensive performance resting experiment table comprises main components, such as a servo motor, an input end torque and rotational speed sensor, a high precision encoder, a measured speed reducer, a vibration noise and temperature sensor, an output torque and rotational speed sensor, a magnetic powder brake, and auxiliary components for connecting and fixing, such as a base, a horizontal sliding table, a coupling and a speed reducing mounting base; the comprehensive performance resting experiment table adopts the mode that the magnetic powder brake provides input end load, the input end of the servo motor is loaded, and angle, rotate speed, temperature, vibration and noise testing devices are added in the middle, so as to test the comprehensive performances of the precision speed reduction device. The comprehensive performance resting experiment table can accomplish testing of performances, such as transmission efficiency, torsional rigidity, vibration, noise and temperature rise, on one experiment table, and can test the comprehensive performances of different models of precision speed reduction devices. The comprehensive performance resting experiment table has the advantages of simple structure, high testing precision and high automation degree, and can meet the testing and detection requirements on the comprehensive performances of the precision speed reduction device.
Owner:CENT SOUTH UNIV

Cylindrical cam flapping wing driving mechanism

The invention discloses a cylindrical cam flapping wing driving mechanism. A motor is fixed on a rack and drives a driving gear of a gear speed reduction device; a driven gear of the gear speed reduction device is coaxially and fixedly connected with a transmission shaft; the rack is fixedly connected with a guide rail which is parallel with a transmission shaft; the guide rail is internally provided with a connecting rod which can slide; one end of the connecting rod is articulated with a sliding plate, and the other end of the connecting rod is fixedly connected with a strut; a cylindrical cam is coaxially and fixedly connected at the outer side of the transmission shaft; one or more cycles of periodic curves are wound on the circumference of a cam slot; the sliding pate can slide in the cam slot; a swinging rod mechanism comprises two swinging arms, the middle part of each swinging arm is articulated with swinging arm shafts which are fixedly connected at two sides of the guide rail; one end of each swinging arm is provided with a sliding chute; the strut can slide in a reciprocating mode along the slide chute, and the other end of each swinging arm is connected with a flappingwing beam. By utilizing the mechanism provided by the invention, the complex plane flapping type can be realized, the structure is simple, the weight is light, the reliability is high, complex control is not required, and the mechanism is applicable to a micro flapping aircraft.
Owner:NORTHWESTERN POLYTECHNICAL UNIV

Mechanical arm modularized joint with force position perceiving function

InactiveCN102218739AHigh joint precisionEasy to connect in seriesJointsReduction driveTransducer
The invention discloses a mechanical arm modularized joint with force position perceiving function and relates to a mechanical arm modularized joint, which aims at solving the problems of large size, large power consumption and low integrated level of the current mechanical arm. A motor stator is fixedly mounted on a fixed shell; a second end cover is mounted in an output shell; the rigid wheel of a harmonic reducer is arranged in the second end cover; the second end cover is connected with the rigid wheel of the harmonic reducer and the fixed shell; a central hole wiring shaft is arranged inthe motor stator and the rigid wheel of the harmonic reducer; a cross roller bearing is mounted between the output shell and the fixed shell; the output shell is connected with the outer ring of a torque transducer; the flexible wheel of the harmonic reducer is mounted between the inner ring of the torque transducer and a connecting nut; a third end cover is mounted on the output shell; a limit stop is mounted on the third end cover; a rotating shaft is fixedly mounted in a motor rotor; a rotating magnetic ring opposite to a position transducer is fixedly sheathed on the rotating shaft; and the generator of the harmonic reducer is connected with the rotating shaft. The mechanical arm modularized joint with the force position perceiving function is used for forming multi-free mechanical arms with light weight through series connection.
Owner:HEILONGJIANG PATENT TECH DEV

Rapid replacing interface for assisted minimally invasive surgical operation robot

The invention discloses a rapid replacing interface for an assisted minimally invasive surgical operation robot, which comprises a rapid replacing box part and a rapid replacing seat part, wherein the rapid replacing seat part is provided with an interface fixing seat; the rapid replacing box part comprises a box cover, a base connected with the box cover and a support plate which is arranged between the box cover and the base and connected with the base; a plurality revolving shafts arranged up and down are connected between the base and the support plate; a rotating shaft of a decelerator connected with an output shaft of an electric motor is installed in the position on the rapid replacing seat in the same axis with each revolving shaft; both sides of the base are provided with slide blocks; both sides of the interface fixing seat are provided with slide grooves, and the bottom of the interface fixing seat is provided with a limiting block; the slide blocks can be matched with the slide grooves up and down in a slide way; a positioning device of the rapid replacing seat and a rapid replacing box is arranged in the middle of the base along the horizontal direction; the end part of each revolving shaft is provided with a lug boss connected with a matching groove of a sleeve on the rotating shaft of the decelerator; and a photoelectric sensor sends a detected initial position signal to a controller of the electric motor. The interface has small volume and high rapid replacing efficiency.
Owner:SHANDONG WEIGAO SURGICAL ROBOT CO LTD

Experiment table for detecting dynamic characteristics of harmonic reducers

The invention discloses an experiment table for detecting dynamic characteristics of harmonic reducers, which comprises an X guide rail arranged on a bottom plate, as well as a first servo motor, wherein the first servo motor is fixed on the X guide rail and is axially connected with a follow-up harmonic reducer; the follow-up harmonic reducer is fixed on the X guide rail and is axially connected with a first torque sensor through a first torsion bar; the first torsion bar sensor is axially connected with a first angle measuring device; the first angle measuring device is connected with a first connecting shaft; and a detected harmonic reducer is arranged on the X guide rail through a mounting bracket and a positioning piece. The experiment table is characterized in that a Y guide rail perpendicular to the X guide rail is arranged on the bottom plate; when the detected harmonic reducer is a right-angled reducer, a second angle measuring device is arranged on the Y guide rail and is axially connected with a second torque sensor; and the second torque sensor is axially connected with a second servo motor. The experiment table has the advantages of good universality and capability of completing the task of testing the dynamic characteristics of a plurality of detected harmonic reducers on one experimental device.
Owner:XI AN JIAOTONG UNIV

Soil pressure balance shield machine cycloid speed reducer

The invention relates to the technical field of shield machine speed reduction, and discloses a soil pressure balance shield machine cycloid speed reducer. The soil pressure balance shield machine cycloid speed reducer is characterized in that: a cycloid driving part is arranged in a cavity formed by connecting a front end cover with a back end cover by using a pin wheel housing, wherein a half-buried hole of the pin wheel housing is in movable fit with a sleeveless needle pin; four cycloidal wheels are arranged on a double-eccentric bearing, wherein the phase difference between a first cycloidal wheel and a second cycloidal wheel and between a third cycloidal wheel and a fourth cycloidal wheel is 180 degrees, and the second cycloidal wheel and the third cycloidal wheel have the same phase; and a W output mechanism consists of an output shaft, a pin and a uniform loading plate, the pin is provided with three circular ring plates to form a four-section freely supported structure, and the W output mechanism is supported in an inner hole of a front end cover and an inner flange outer circle of a back end cover through a bearing respectively. The soil pressure balance shield machine cycloid speed reducer has the following advantages that: (1) the axial size is 45 to 55 percent shorter than that of a third-class planetary reduction gear of the background art; (2) the cycloidal wheels can be assembled in a reversed mode to double the service life; (3) the manufacturing cost is 40 to 50 percent of that of the third-class planetary reduction gear of the background art; and (4) the inertia force and the inertia moment in operation are theoretically completely balanced.
Owner:国茂精密传动(常州)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products