Lunar exploration mechanical arm modular joint with torque retention feature

A technology of modular joints and robotic arms, applied in manipulators, manufacturing tools, joints, etc., can solve the problems of short service life of robotic arms and high launch cost of lunar rover, and achieve high overall bending rigidity, compact structure, location High-precision output

Inactive Publication Date: 2010-03-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of high launching cost and short service life of the mechanical arm of the lunar exploration vehicle existing i

Method used

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  • Lunar exploration mechanical arm modular joint with torque retention feature
  • Lunar exploration mechanical arm modular joint with torque retention feature
  • Lunar exploration mechanical arm modular joint with torque retention feature

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0007] Specific implementation mode 1: Combination Figure 1-14 with Picture 20 as well as Figure 21 To explain this embodiment, the modular joint of the lunar probe manipulator with torque retention characteristics of this embodiment is composed of an input device A, an output device B, a sealing device C, and an electrical device D; the input device A is composed of a driving device and an input device The housing 11 is composed of; the drive device is installed in the input device housing 11, the drive device is composed of a DC brushless motor stator 12, a DC brushless motor rotor 13, and a motor rotor shaft 14. The DC brushless motor stator 12 is installed on the input On the inner wall of the device housing 11, the motor rotor shaft 14 is arranged in the input device housing 11, and the DC brushless motor rotor 13 is sleeved on the motor rotor shaft 14. The sealing device C is composed of a sealing device flange 22 and an O-ring 23 The output device B is composed of a ha...

Example Embodiment

[0008] Specific implementation manner two: combination figure 2 , Figure 4 with Figure 5 To describe this embodiment, the resolver transmission device of this embodiment is composed of a first radial bearing 28, a resolver input shaft 10, a key 21, a resolver stator 15, a resolver rotor 16, a second radial bearing 18, and a second diameter. The inner ring of the first radial bearing 28 is supported on the right end of the resolver input shaft 10, and the outer ring of the first radial bearing 28 is sheathed In the bearing seat of the output flange 29 of the harmonic reducer; the left end of the resolver input shaft 10 is sleeved in the inner ring of the second radial bearing 18, and the second radial bearing 18 is sleeved in the second radial bearing support seat 20 In the bearing housing, the second radial bearing gland 19 is pressed into the supporting seat 20 from the left side and fixed to the supporting seat 20. There is an adjusting washer between the gland 19 and the s...

Example Embodiment

[0009] Specific implementation mode three: combination figure 2 , Figure 15 ~ Figure 19 To illustrate this embodiment, the electrical device D of this embodiment is a potentiometer; the potentiometer is composed of a brush 42, a brush holder 25, a brush holder base flange 26, a conductive ring 41 and a potentiometer plate 30, The brush 42 is fixed on the brush holder 25, the brush holder 25 is installed in the mounting hole 46 of the brush holder base flange 26, and the brush holder base flange 26 is fixed to the angular contact bearing inner seat 6 , The brush holder 25 and the flange 26 abut against the bearing inner seat 6 to realize the fixing of the brush holder assembly, the conductive ring 41 is attached to the potentiometer plate 30, and the potentiometer plate 30 is fixedly connected to the output flange 27 . Use the brush 42 to slide on the conductive ring 41 to measure the rotation angle of the joint; the potentiometer measures the absolute position of the joint, ...

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Abstract

The invention relates to a lunar exploration mechanical arm modular joint with the torque retention feature. The lunar exploration mechanical arm modular joint can solve the problems of high launchingcost of the modular joint of the mechanical arm of a lunar exploration vehicle and short service life of the mechanical arm of the lunar exploration vehicle. A driving device is connected with a flange disc at an input end of a harmonic reducer through a rotor shaft of a motor, a rigid gear is fixedly connected with an inner seat of an angular contact bearing, the inner seat of the angular contact bearing is fixedly connected with a casing of an input device, a flexible gear is fixedly connected with the flange disc at an output end of the harmonic reducer and an output flange disc, back-to-back angular contact bearings are arranged between the inner seat of the angular contact bearing and an outer seat of the angular contact bearing, a contact type packing sealing structure and a mechanical limiting structure are arranged between the flange disc of a sealing device and the outer seat of the angular contact bearing, and an electrical device is fixed between the inner seat of the angular contact bearing and the output flange disc. The lunar exploration mechanical arm modular joint has the advantages of power-off protection function, compact structure, light weight, low power consumption, good sealing performance, low launching cost and long service life.

Description

technical field [0001] The invention relates to a modular joint of a lunar exploration manipulator. Background technique [0002] Lunar probes fly around the moon to detect ores on the surface of the moon and the space environment. To analyze the ore and soil on the surface of the moon more accurately, a probe that can walk on the surface of the moon like a lunar exploration vehicle is needed. The robotic arm carried on the lunar exploration vehicle can detect the surface of the moon by placing various geological analysis instruments at the end. The modular joint of the robotic arm of the Lunar Exploration Vehicle is the main component of the robotic arm of the Lunar Exploration Vehicle. Its performance determines the reliability of the entire mechanical arm, the end output torque, the end position accuracy and other main performances. In order to reduce the launch cost of the lunar exploration vehicle, the joint of the robotic arm of the lunar exploration vehicle should ...

Claims

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Application Information

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IPC IPC(8): B25J17/00
Inventor 孙奎黎田刘宏倪风雷谢宗武刘宇
Owner HARBIN INST OF TECH
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