Four-rotor driving type geared motor

A motor and driving technology, which is applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problems of short driving stroke, increase of driving device components and weight, and complex structure, so as to reduce the difficulty of processing and assembly and improve the magnetic pole. Utilization rate, the effect of reducing the moment of inertia

Active Publication Date: 2014-01-22
河南盛世恒信科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Motors driven by piezoelectric or giant magnetostrictive materials are difficult to be of practical value because the action stroke of the driver is too short (only on the order of microns)
In order to meet the actual needs of the stator movement stroke, a set of levers should be added to increase its action stroke, which increases the components and weight of the driving device, and the structure is too complicated and impractical

Method used

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  • Four-rotor driving type geared motor
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  • Four-rotor driving type geared motor

Examples

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Embodiment Construction

[0034] See Figure 1~Figure 18 , Introduce the structure and composition of the four-rotor drive meshing motor of the present invention: it is a motor that integrates the motor and the reducer, has a certain self-locking, braking, and can directly output low speed and high torque. The motor is equipped with: motor stator 9, winding 8, rotor permanent magnet 1, internal gear ring 7, external gear 5 and main shaft 3 of the gear reducer, eccentric shaft 12, and the supporting part is the housing 10, the front cover 6 and the rear Cover 11. The central semicircular hole on the external gear 5 is sleeved in the middle section of the main shaft 3. By the revolving meshing movement of the inner ring gear 7 with the external gear 5, the external gear 5 drives the main shaft 3 to output a low-speed and high-torque rotation movement; Both ends of the four positioning pins 14 of the semicircular holes on the ring gear 7 and the stator 8 are fixedly mounted in the holes on the motor end c...

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Abstract

The invention discloses a four-rotor driving type geared motor. Four rotor shafts are symmetrically arranged in the radial direction, and each rotor shaft comprises an eccentric shaft and two tile-type permanent magnets symmetrically mounted on the rear segment; a stator is in a structure that a circular ring is arranged on the outer side, and the middle part is crisscross, a circular gap is arranged on each of the four corners, two symmetrical pole shoes are arranged at each gap, one segment, on which the permanent magnet is mounted, of each of the four rotor shafts passes through the corresponding circular gap to form a single-phase bipolar magnetic pole; upper bearings are mounted on the two eccentric segments of the four rotor shafts and are respectively mounted in the bearing block holes of two inner gear rings, and the two ends of each rotor shaft are respectively mounted in bearing holes formed in a front cover and a rear cover; two windings are symmetrically mounted on the stator in the radial direction, the four rotor shafts can be simultaneously driven to rotate by properly controlling the conduction time and current direction of the two windings, meanwhile the inner gear ring is driven to move in a revolution manner in a radial plane and be meshed with a fixed shaft outer gear, and the outer gear drives a main shaft to output rotation. According to the four-rotor driving type geared motor, the structure is compact, and the transmission ratio is large.

Description

Technical field [0001] The invention belongs to the technical field of electric drive equipment, and specifically relates to a four-rotor drive type meshing motor. Background technique [0002] Current industrial robot joints generally use a drive device composed of a servo motor and a harmonic reducer or an RV reducer, which has a long transmission chain and high cost. In recent years, the research on the integration of the reduction mechanism and the motor has made good progress: the piezoelectric cycloid motor based on the reduction transmission principle of gear meshing is adopted through the meshing of a pair of cycloid gears to connect the piezoelectric drive The telescopic movement is converted into the rotation of the rotor, and then the cycloidal motor is driven to rotate by the driving force output by the piezoelectric driver to output torque. The reduction ratio of a piezoelectric cycloid motor is the ratio of the difference between the number of teeth of the rotor an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/116H02K16/00
Inventor 李瑞华丁瑞华
Owner 河南盛世恒信科技有限公司
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