Force measuring device for friction and wear testing machine and friction and wear testing machine

A technology of friction and wear test and force measuring device, which is applied in the direction of measuring device, adopting mechanical device, testing wear resistance, etc. It can solve the problems that it is difficult to effectively measure the change of friction force, affect the true accuracy of data, and affect the accuracy of testing, etc. , to achieve the effect of saving materials and self-weight, improving test accuracy and stability
CN110208126BActive Publication Date: 2021-09-17SOUTHWEST JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHWEST JIAOTONG UNIV
Publication Date
2021-09-17

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Abstract

The invention discloses a force measuring device of a friction and wear testing machine, that is, a friction and wear testing machine. The force measuring device includes a base, a bearing, a first piezoelectric ceramic sensor, a second piezoelectric ceramic sensor, a fixing seat of the piezoelectric ceramic sensor, a A support block, a second support block, a first threaded rod, a second threaded rod, a cantilever beam, and a fixture; wherein, a shaft is arranged inside the base, and two bearings are respectively sleeved on both ends of the shaft, and the piezoelectric ceramic sensor fixing seat Fixed on the bearing; one end of the piezoelectric ceramic sensor holder is fixed to the first support block, the other end is fixed to the second support block, and each support block is horizontally threaded to the threaded rod; the opposite sides of the two support blocks are respectively fixed A piezoelectric ceramic sensor is connected; the cantilever beam is horizontally fixed on the piezoelectric ceramic sensor fixing seat, the fixed ends of the cantilever beam respectively fix the piezoelectric ceramic sensors, and the suspension ends of the cantilever beam are fixedly connected to the fixture.
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Description

technical field

[0001] The invention belongs to the field of design and application of a friction and wear testing machine, in particular to a friction and wear testing machine force measuring device and a friction and wearing testing machine. Background technique

[0002] Fretting refers to the relative motion with extremely small amplitude (usually micron level) between two surfaces or interfaces that are in contact with each other due to mechanical vibration, electromagnetic vibration, fluid motion, and thermal cycle. Fretting may cause damage to the contact interface, which in turn causes problems such as occlusion, loosening, energy loss, and noise pollution sources, or causes fatigue cracks to initiate and expand, reducing the fatigue life of components. Fretting damage is common in the nuclear power industry, aerospace, power systems, bridges, transportation, and artificial implants. Because of its extremely small displacement amplitude and high vibration frequency, ...

Claims

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