Dynamic torque testing machine of crossed roller bearing for harmonic reducer

Abstract

The invention discloses a dynamic torque testing machine of a crossed roller bearing for a harmonic reducer. A lifting gear motor is provided with an output shaft and is vertically arranged on a rearmachine body; the lifting mechanism comprises a vertical screw rod and a threaded sleeve which are arranged on the front machine body and are in transmission threaded connection; a speed reduction transmission mechanism comprises a toothed belt, a driving belt wheel fixed to the output shaft and a driven belt wheel fixed to the threaded sleeve; a guide mechanism comprises a vertical guide rail anda movable cross beam sliding block part for fixing the upper end of the torque sensor; a clamping mechanism comprises a balance cross beam suspended at the lower end of the torque sensor, a horizontal cylinder provided with a reverse synchronous movement piston rod, dragging plates arranged on the two sides of the cylinder, and clamping jaws connected with the dragging plates respectively; the connecting ends of the two piston rods are connected with a dragging plate; the free ends of the two piston rods correspond to guide holes formed in the dragging plate opposite to the connected draggingplate; and a positive and negative rotation loading mechanism comprises a torque loading disc and a loading assembly provided with an output shaft and used for being connected with the torque loadingdisc. The dynamic torque testing machine is compact in structure, and overcomes the defects of low testing efficiency and roughness.

Description

【Technical field】 [0001] The invention relates to a dynamic torque testing machine for a crossed roller bearing used in a harmonic reducer, and belongs to the field of dynamic torque testing equipment for a crossed roller bearing used in a harmonic reducer. 【Background technique】 [0002] In the prior art, the dynamic torque of the crossed roller bearing used in the harmonic reducer is tested by manually simulating the rotation. During the specific test, pinch the outer ring of the crossed roller bearing with one hand and try to rotate the inner ring with the other hand. Whether it feels light or heavy, and whether the rotation is smooth and there is no stuck point in the whole circle is used as a sample product. However, manual inspection alone has the disadvantages of strong randomness, low test accuracy and low detection efficiency. When large-size crossed roller bearings are manually inspected continuously, the physical strength of the tester is high. 【Content of inven...

AI Technical Summary

Problems solved by technology

During the specific test, pinch the outer ring of the crossed roller bearing with one hand and try to rotate the inner ring with the other hand. Whether it feels light or heavy, and whether the rotation is smooth and there is no stuck point in the whole circle is used as a sample product. Eligible basis, but relying on manual inspection alone has the disadvantages of strong randomness, low testing accuracy and low testing efficiency. When large-scale crossed roller bearings are manually tested continuously, the tester will consume a lot of physical strength

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