A rolling bearing linear guide device for a lunar rover single-wheel bench test device

Abstract

The invention relates to a linear guiding device, in particular to a rolling bearing linear guiding device applicable to a dirty environment such as a lunar vehicle single-wheel bench test device. The linear guiding device comprises a square tube, a fixing tube, bearing blocks, a rolling bearing and a bearing mounting frame, the two terminals in axial direction of the fixing tube are respectivelyprovided with the bearing blocks, the bearing blocks are provided with square holes in the axial direction, one end of the bearing block far away from the fixing tube is also provided with a cantilever, the cantilever is provided with the bearing mounting frame, the bearing mounting frame is provided with the rolling bearing, the axis of the rolling bearing is vertical to the axis of the fixing tube, the square tube penetrates through the fixing tube and the square holes of the bearing blocks, and the outer ring of the rolling bearing is contacted with the squares. By adopting the linear guiding device provided by the invention, a friction force in an operating process is greatly reduced, and the linear guiding device is also applicable to the dirty environment in a lunar vehicle single-wheel bench test.

Description

Technical field: [0001] The invention relates to a linear guide device, in particular to a rolling bearing linear guide device suitable for a dusty environment such as a single-wheel bench test device for a lunar rover. Background technique: [0002] The single-wheel bench test device is an important test equipment to determine the driving performance of the lunar rover walking system; in the test equipment, the vertical load loading method mostly adopts the sliding pair driven by gravity. Since there is no drive, the friction between the kinematic pairs It will directly affect the loading accuracy of the wheel. Therefore, most test devices use formed linear bearings as linear guide devices. Although the friction of this device is small, it is still somewhat large compared to the test requirements. There is a lot of floating dust, and the guide rod of the linear bearing is easily polluted, which increases the friction of the linear bearing. Therefore, the linear bearing must...

AI Technical Summary

Problems solved by technology

[0002] The single-wheel bench test device is an important test equipment to determine the driving performance of the lunar rover walking system; in the test equipment, the vertical load loading method mostly adopts the sliding pair driven by gravity. Since there is no drive, the friction between the kinematic pairs It will directly affect the loading accuracy of the wheel. Therefore, most test devices use formed linear bearings as linear guide devices. Although the friction of this device is small, it is still somewhat large compared to the test requirements. There is a lot of floating dust, and the guide rod of the linear bearing is easily polluted, which increases the friction of the linear bearing. Therefore, the linear bearing must be equipped with a corresponding sealing device, which will increase the movement resistance of the linear guide and affect the loading of the test device. precision

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