Powder metallurgy material and friction body and friction disc applied by same

A powder metallurgy, friction body technology, applied in friction linings, mechanical equipment, gear shifting mechanisms, etc., can solve the problems of short service life and poor temperature resistance of friction discs, and achieve extended service life, good wear resistance, and guaranteed The effect of friction coefficient and service life

Pending Publication Date: 2019-08-20
浙江乐粉轨道交通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect of the friction disc in the prior art that the friction disc has a relatively short service life due to its poor temperature resistance, thereby providing a friction disc for a shaft coupling

Method used

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  • Powder metallurgy material and friction body and friction disc applied by same
  • Powder metallurgy material and friction body and friction disc applied by same
  • Powder metallurgy material and friction body and friction disc applied by same

Examples

Experimental program
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Effect test

Embodiment 1

[0042] combine figure 1 and figure 2 , this embodiment relates to a friction disc, including a mounting part 1, a friction assembly 2 and a mechanical connection part 3, wherein the mounting part 1 is suitable for assembling with the main shaft of the coupling, and the mounting part 1 is mainly used for mounting and The role of supporting the entire friction disc, the friction assembly 2 is assembled with the mounting part 1, the friction assembly 2 is used for friction, and the mechanical connection part 3 is used for assembling the friction assembly 2 and the mounting part 1.

[0043] Specifically, the mounting part 1 is in the shape of a disk, and the mounting part 1 is provided with a mounting hole suitable for the main shaft of the coupling. The mounting part 1 is made of a metal material. In this embodiment, the mounting part 1 adopts 40Cr, in other embodiments, the mounting piece 1 can also be made of 45# steel.

[0044] The friction assembly 2 includes a metal botto...

Embodiment 2-8

[0062] Embodiment 2-8 relates to a friction disc, the friction disc includes: a mounting part made of 40Cr material, and a friction assembly, the friction assembly includes a metal bottom pad made of Q235B steel back and a powder metallurgy material sintered The formed friction body, wherein, the metal base pad and the mounting part are fixedly connected by rivets, and the friction assembly is prepared according to the following method:

[0063] S1. After weighing the powder metallurgy material used to prepare the friction body according to the proportion, put it into a V-shaped mixer and mix it for 8 hours until the ingredients of each material are evenly stirred. The consumption of the powder metallurgy material in each embodiment is shown in Table 1;

[0064] S2. Put the mixed raw materials into the mold, press the powder metallurgy material on the metal bottom pad under the pressure of 400MPa, and finally shape it into a friction assembly block;

[0065] S3. Place the pres...

Embodiment 9

[0071] Embodiment 9 relates to a friction disc. The difference between Embodiment 9 and Embodiment 2 is that the friction assembly is prepared according to the following method:

[0072] S1. After weighing the raw materials according to the proportion, put them into a V-shaped mixer and mix them for 6 hours until the ingredients of each material are evenly stirred. The consumption of raw materials in each embodiment is shown in Table 1;

[0073] S2. Put the mixed raw materials into the mold, press the powder metallurgy material on the metal bottom pad under the pressure of 300MPa, and finally shape it into a friction assembly block;

[0074] S3. Place the pressed friction assembly compact in a bell-type pressurized sintering furnace, raise the temperature from room temperature to 900° C. at a rate of 5° C. / min, and then keep the compact for 180 minutes to sinter the compact. The sintering process uses hydrogen as the protective atmosphere, and mechanically pressurizes the comp...

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Abstract

The invention relates to the field of friction devices, in particular to a powder metallurgy material and a friction body and a friction disc applied by the same. The powder metallurgy material is applied to the friction disc; and through application of the powder metallurgy material to the friction disc, as the powder metallurgy material is better in temperature resistance compared with an organic resin material, the temperature resistance of the friction disc can be improved, and the service life of the friction disc can be prolonged to a certain extent.

Description

technical field [0001] The invention relates to the field of friction devices, in particular to a powder metallurgy material and a friction body and a friction disc applied thereto. Background technique [0002] Wind power belongs to the field of new energy technology. With the emergence of energy crisis, wind power is more and more favored by people. The coupling is an important part of the wind power generating set. The coupling is installed between the speed reducer shaft and the main shaft of the generator to transmit mechanical torque to drive the generator to rotate and generate electricity. [0003] The friction disc is an important part of the coupling. The friction disc is used to absorb the extra energy generated by the main shaft of the generator due to the fluctuation of external factors (wind speed change, etc.). The friction disc also has a limit while transmitting the mechanical torque continuously. Due to the action of torque, when the unit is short-circuite...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C9/00C22C30/02C22C30/06C22C32/00C22C1/05C22C1/10B22F3/02B22F3/10F16D69/02
CPCC22C9/00C22C30/02C22C30/06C22C32/0084C22C1/05B22F3/02B22F3/10F16D69/027F16D2200/0026
Inventor 王梦非张善军王珍记薛勇
Owner 浙江乐粉轨道交通科技有限公司
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