Assessing test machine for tribological properties of high polymer compound material

Abstract

The invention relates to an assessing test machine for tribological properties of a high polymer compound material. The assessing test machine comprises an airtight box and is characterized in that a transmission shaft is arranged on a box wall, wherein a shaft end of the transmission shaft extending out of the box is connected with a safety shaft, a torque meter and a servo motor in turn througha coupler; a rotating angle disc is mounted on the safety shaft; one end of the transmission shaft inserted into the box is connected with a sample shaft through a universal crossing coupler; an upper sample clamp and a lower sample clamp are arranged around the sample shaft; a force transfer rod is connected with the upper sample clamp; one end of the force transfer rod extends out of the box and is connected with a heat-insulating shaft, a pressure sensor and a hydraulic cylinder; and a displacement measuring rod, which is in contact with a displacement sensor, is mounted on an extending part of the force transfer rod. The assessing test machine has the advantages that: the real working condition of the high polymer compound material is simulated and an assessing test for the tribological properties of the high polymer compound material is performed for detecting the abrasion loss and the change in frictional factor following the time of the high polymer compound material in real time.

Description

technical field [0001] The invention relates to the field of machinery, in particular to a test machine for evaluating the tribological performance of high polymer composite materials, which can detect the tribological performance of high polymer composite materials under different loads, different swing speeds and different ambient temperatures. Background technique [0002] Functional polymer composite materials used in self-lubricating joint bearings, self-lubricating bushings and self-lubricating guide rails rely on the transfer film formed by the polymer (such as polytetrafluoroethylene) on the surface and the dual pair (metal) to achieve friction reduction. Relying on the synergistic effect of its matrix (such as phenolic resin, polyimide resin) and polymer reinforcement materials (such as aramid fiber, glass fiber, carbon fiber) doped in the matrix to achieve wear resistance. [0003] Experimental machines for polymer composite materials such as "Low-speed Heavy-duty ...

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Problems solved by technology

[0003] Experimental machines for polymer composite materials such as "Low-speed Heavy-duty Fiber Braided Composite Self-lubricating Liner Performance Tester" (Chinese Patent ZL200810079552.0) disclose a fiber-woven composite used in low-speed and heavy-duty working conditions Self-lubricating pad performance testing machine, "High-speed light-load fiber braided composite self-lubricating pad performance testing machine" (Chinese patent ZL200810079554.X) discloses a fiber braided composite self-lubricating application in high-speed and light-load conditions In the gasket performance testing machine, the outer sphere used as the dual pair in the above patent is fixedly connected at both ends and simply supported in the middle of the rotating shaft of the box. When replacing the dual pair, the bearing and the rotating shaft need to be removed from one end of the box, and the test time is large. , at the same time, in the process of sample preparation, it is necessary to bond the fiber braided composite to the inner spherical surface of the fixture, the process is complicated, and the bonding quality is difficult to guarantee

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