Friction plate actual working condition thermal fatigue load simulation test device
A technology of actual working conditions and load simulation, applied in measuring devices, using stable tension/pressure testing material strength, instruments, etc., can solve the problem that the thermal load of friction plates cannot be reproduced
Active Publication Date: 2020-07-28
CHINA NORTH VEHICLE RES INST
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[0005] The purpose of the present invention is to provide a friction plate thermal fatigue load simulation test device under actual working conditions to solve the problem that the friction plate thermal simulation test cannot reproduce the actual thermal load of the friction plate
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[0033] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0034] refer to Figure 1 to Figure 8 As shown, the thermal fatigue load simulation test device of the friction plate in the actual working condition of the present invention includes: a left clamping part and a right clamping part, the friction plate 7 is clamped and positioned between the left and right clamping parts, and the left clamping part is on the left side Connect the pressurizing part 9, the right clamping part is arranged on the outer periphery of the inner hub 5, the left and right heating blocks are respectively arranged on the left and right clamping parts, and the hot spot simulation blocks are arranged on the surfaces of the left and right heating blocks 4. The friction plate 7 is clamped between the h...
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The invention discloses a friction plate actual working condition thermal fatigue load simulation test device. The device is characterized in that the device comprises a left clamping part and a rightclamping part; a friction plate is clamped and positioned between the left clamping part and the right clamping part; the left side of the left clamping part is connected with a pressurizing part; the right clamping part is arranged at the periphery of an inner hub; a left heating block and a right heating block are respectively arranged on the left clamping part and the right clamping part; hotspot simulation blocks are arranged on the surfaces of the left heating block and the right heating block; the friction plate is clamped between the hot spot simulation blocks on the left side and theright side; the surface of the friction plate makes contact with the hot spot simulation blocks locally, local high temperature is formed on the contact surface of the friction plate and the hot spotsimulation blocks, and therefore, surface temperature field distribution of the friction plate under an actual working condition is reproduced. The hot spot simulation blocks with different distributions, different heat conduction attributes and different sizes are designed, so that temperature distribution of the surface of the friction plate under different actual working conditions can be simulated; and combined with temperature, stress strain and other tests, the device plays an important role in researching the thermal load characteristics of the friction plate.
Description
technical field [0001] The invention belongs to the technical field of friction plate tests, and relates to a thermal fatigue load simulation test device for friction plates under actual working conditions. Background technique [0002] Friction is of great significance for the vehicle to start smoothly and achieve overload protection, but it will generate a lot of friction heat when it is high-speed, heavy-loaded or frequently engaged and separated, which will increase the temperature of the friction plate. The joint time of the friction pair is short, and its temperature rises rapidly due to insufficient cooling and heat dissipation. Especially the middle part of the friction plate has poor lubrication and heat dissipation. In addition, the uneven contact pressure distribution of the friction surface causes uneven heat flux distribution, which makes the entire friction During the process, the temperature in the middle part of the friction plate is higher, and a higher temp...
Claims
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IPC IPC(8): G01N3/18G01N3/04
CPCG01N3/18G01N3/04G01N2203/0073G01N2203/0282
Inventor 张万昊胡铮王志勇韩明汪银风庞惠仁杨玲玲兰海宁克焱
Owner CHINA NORTH VEHICLE RES INST