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Simplex sprocket supplier china talks about the causes of sprocket wear

Simplex sprocket supplier china talks about the causes of sprocket wear

(Summary description)A sprocket is a wheel with cog-type buckle teeth, which is used to mesh with a block with an accurate pitch on a link chain or a cable.

Simplex sprocket supplier china talks about the causes of sprocket wear

(Summary description)A sprocket is a wheel with cog-type buckle teeth, which is used to mesh with a block with an accurate pitch on a link chain or a cable.

Information

A sprocket is a wheel with cog-type buckle teeth, which is used to mesh with a block with an accurate pitch on a link chain or a cable. So do you know the cause of sprocket wear? Follow the editor of Simplex sprocket supplier china to have a simple understanding!
1. Abrasive wear
Because the chain inevitably comes into contact with pulverized coal, there is a small amount of pulverized coal on it, which is brought to the contact point of the sprocket chain socket. The pulverized coal contains a little sharp sand, which will cause the surface material of the sprocket to fall off during the friction process. This is abrasive wear. Abrasive wear is related to the hardness of the friction material and the hardness of the abrasive. From the graph of the influence of abrasive hardness on wear, it can be seen that when the abrasive hardness is close to the hardness of the friction material, it will cause high-speed wear of the friction material. Because the coal powder is mixed with a little sharp sand, this is also one of the main reasons for accelerating the wear of the sprocket.


2. The greater the adhesive wear load and the higher the surface temperature, the more serious the adhesion phenomenon. For metal materials with a certain hardness, wear tests are performed under different pressures to obtain a graph of the relationship between wear rate and pressure. When the pressure reaches more than 1/3 of the hardness of the material, severe wear will occur. According to the stress distribution diagram, it can be seen that the maximum stress contact point is the maximum pressure, and its value is 884.4 MPa. Because the quenching hardness of the chain socket is HRC48~52, the corresponding hardness value is 4800MPa. Therefore, the pressure is far less than 1/3 of the material's hardness, so adhesive wear is not the main form of sprocket wear.
The above is the editor of Simplex sprocket supplier china: about the reasons for sprocket wear.

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