Clamp device for friction experiment of drum type friction plate

Abstract

The invention discloses a clamp device for a friction experiment of a drum type friction plate. A transversely arranged vertical clamp plate is an irregular flat plate; a section of arc-shaped stair surface which protrudes upwards is arranged on the upper edge of each vertical clamp plate; the left and right end parts of each upper edge are connected with two left and right vertical edges of the corresponding clamp plate; each two vertical edges are positioned on the inner sides of the two end parts of the corresponding upper edge; the stair surfaces of the upper edges of the two clamp plates are kept opposite and parallel to each other; the two clamp plates are integrally locked; the two upper edges define an arc-shaped clamping groove; two left and right opening ends of the clamping grooves are exposed out of the outer sides of two side edges, respectively; a vertical clamp strip is configured close to each of the two side edges below two ends of the clamp groove; positioning grooves are formed in two upper end parts of the two clamp strips towards two ends of the clamp groove; each positioning groove is internally provided with an elastic propping element which stretches out to the opening of the groove. The clamp device can sufficiently clamp the drum type friction plate according to experiment requirements, and is applicable to friction plates with different thicknesses, so that multiple purposes of one clamp are achieved; the device is good in connection with a universal friction experiment machine and convenient to assemble and disassemble, and the experiment can be accomplished by the device and the universal experiment machine.

Description

technical field [0001] The invention relates to the field of braking friction of an electric vehicle, in particular to a clamping device for a friction test of a drum-shaped friction plate. Background technique [0002] At present, the braking friction linings of electric vehicles generally use drum-shaped friction linings, and their friction performance directly affects the braking performance of electric vehicles. [0003] The drum-shaped friction plate is in the shape of an arc-shaped strip. When performing a friction test on it, it needs to be fully clamped along its arc-shaped outer edge, and then use the friction plate to rub the top of its arc-shaped outer edge back and forth, so as to measure the coefficient of static friction and dynamic friction. Coefficient and wear performance. At present, there is a lack of proprietary fixtures for the friction test of electric vehicle drum friction plates in the industry. There are very few clamping devices on the general fric...

AI Technical Summary

Problems solved by technology

At present, there is a lack of proprietary fixtures for the friction test of electric vehicle drum friction plates in the industry. There are very few clamping devices on the general friction testing machine, and they cannot meet the test requirements.

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