Driving assembly

A technology for driving components and components, applied in electric components, electrical components, control mechanical energy and other directions, can solve the problems of small adaptable temperature range, low positioning accuracy, large transmission error, etc., and achieves compact structure, high transmission precision, and motion. The effect of small hysteresis

Inactive Publication Date: 2019-03-01
SHANGHAI AEROSPACE SYST ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a drive assembly, which can solve the problems of the existing drive assembly due to the small adaptable temperature range, large return difference, large transmission error, low positioning accuracy, and small transmission torque.

Method used

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Embodiment Construction

[0025] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] Such as figure 1 and 2 As shown, the present invention provides a drive assembly, including: drive motor 1, motor mounting end cover 2, harmonic reducer 3, assembly housing 5, drive shaft 8, adapter flange 9, pin screw 10, resolver , angular contact bearing assembly 13, flat key 14, wherein,

[0027] The drive motor 1 and the motor installation end cover 2 are positioned through a seam and fixed with screws;

[0028] The output shaft of the drive motor 1 is fixedly connected to the input end of the harmonic reducer 3, and the torque transmission is performed using a flat key 14;

[0029] The fixed end of the harmonic reducer 3 is installed between the motor installation end cover 2 and the component housing 5;

[0030] ...

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Abstract

The invention provides a driving assembly. A driving motor and a motor mounting end cover are positioned through a stop opening; the output shaft of the motor is fixedly connected with the input end of a harmonic speed reducer; torque transmission is carried out by using a flat key; the harmonic speed reducer fixed end is arranged between the motor mounting end cover and an assembly shell; the output end of the harmonic speed reducer is fixedly connected with a driving shaft; the driving shaft is supported and positioned by a diagonal contact bearing, and is mounted on the assembly shell; a connecting flange is connected to the driving shaft through a pin screw; the motor torque is amplified by the speed reducer and then is driven by the driving shaft to rotate; a rotating transformer is installed on the driving shaft and directly detects the output angle of a driving joint, so that the middle links of the torque transmission are less, and by virtue of the use of the pin screw, the driving assembly has the advantage of being small in return difference; and due to reasonable structural design and layout, the internal cavity is small, the compactness is high, the overall envelope size of the assembly is reduced, and the weight and installation space requirements of the assembly are reduced.

Description

technical field [0001] The invention relates to a drive assembly. Background technique [0002] The drive component is the core component of the spaceborne actuator (such as antenna pointing mechanism, deployment mechanism, mechanical arm, driving mechanism), and is the basis for the actuator to realize tracking, orientation and positioning. [0003] With the rapid development of modern aerospace technology, space exploration activities represented by space stations, moon landing programs and fire detection projects are becoming more and more frequent and the tasks are becoming more and more complex. The requirements for tracking and orientation performance, reliability, deep low temperature environment and high and low temperature environment adaptability of spacecraft extravehicular executive components are getting higher and higher. [0004] At present, the development of space drive components is mainly concentrated in the low and medium orbits of the earth. There are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/10H02K11/21H02K7/08
CPCH02K7/085H02K7/10H02K11/21
Inventor 董毅于爽王浩淼罗小乐戴飞
Owner SHANGHAI AEROSPACE SYST ENG INST
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