NEWS Center

11

2022

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11

Introduction to the replacement and precautions of the crown wheel pad

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【Summary description】The crown wheel lining block is mainly used to prevent direct contact between the crown wheel and the steel wire rope. The crown wheel lining block plays a very important role in the service life of the steel wire rope. When the steel wire rope runs, it will rotate. If the friction coefficient is too high, it will hinder the rotation of the steel wire rope and damage the steel wire rope. In this case, the steel wire rope must be poured into the vertical shaft with as little resistance as possible to reduce torque and rotational stress.

The crown wheel lining block is mainly used to prevent direct contact between the crown wheel and the steel wire rope. The crown wheel lining block plays a very important role in the service life of the steel wire rope. When the steel wire rope runs, it will rotate. If the friction coefficient is too high, it will hinder the rotation of the steel wire rope and damage the steel wire rope. In this case, the steel wire rope must be poured into the vertical shaft with as little resistance as possible to reduce torque and rotational stress.

The crown wheel lining block has extremely low friction coefficient and high wear resistance. On the one hand, it reduces the wear of the crown gear, while allowing the steel wire rope to rotate freely, making it safer and extending the service life of the steel wire rope. So what are the characteristics of the crown wheel lining block? Below is an introduction for everyone.

(1) Good impermeability, the chemical properties of the lining are impermeability, resistance to various oils and corrosive liquids, and high safety. The extremely low friction coefficient and extremely high wear resistance can release the rotation of the steel wire rope during operation at the lining block of the crown block, preventing the steel wire rope from winding onto the friction wheel and causing rope slipping.

(2) Long service life, under the same industrial and mining conditions, it is 3-8 times that of other materials in China, with good processability. The special hardness of the wheel lining block facilitates the turning of the rope groove, extending its service life.

(3) Effectively extending the service life of steel wire ropes, with low friction coefficient and good wear resistance, reducing damage to steel wire ropes, and effectively extending the service life of steel wire ropes.

When severe friction occurs, the crown wheel liner of the mine hoist needs to be replaced in a timely manner to ensure the friction coefficient and normal operation of the mine hoist. Below is an introduction to the precautions and standards for replacing the pulley guide wheel gasket.

Firstly, the preparation work for the construction of the pulley guide wheel liner is to organize all construction personnel to learn and implement this measure, prepare all instruments and check if they are in good condition, prepare friction pads and bolts that may be damaged, and transport the pulley guide wheel liner to the appropriate position on the pulley platform. Electricians should install lighting fixtures and telephones on the pulley platform in advance to facilitate construction, Then the mechanic connects the compressed air pipeline in advance for construction. There are also many construction sequences before the installation of the crown wheel lining block, which must be carried out according to the prescribed procedures to ensure the stability and effectiveness of the crown wheel lining block. At the same time, pay attention to one's own safety, pull out the new and old ropes from the rope groove, place them on the main shaft of the crown wheel, turn the pad baffle of the pulley guide wheel to the appropriate position below the pulley, remove the bolts of the baffle, and then remove the baffle. Use a special air pick to remove the pad below the baffle, Then install a new crown wheel pad, but a pair of crown wheel guide wheel pads must be left for future use. Manually move the winch to the appropriate position until it is completely replaced, install a baffle, and put the new and old ropes on the crown wheel spindle into the rope groove, the new rope into the rope groove, and the old rope on one side of the new rope. After completion, clean the site and complete the construction.

The above is the installation and construction procedure and precautions for the crown wheel lining block. I hope it is helpful to everyone and can better utilize the crown wheel lining block in the future.