NEWS Center

27

2022

-

10

How to handle common problems with the installation of the crown wheel pad?

Classification:


【Summary description】The crown wheel pad is mainly used to prevent direct contact between the crown wheel and the steel wire rope from causing mutual wear and tear, and plays a very important role in protecting the service life of the steel wire rope. When the wire rope is running, if the friction coefficient of the bucket is too high, it will hinder the rotation of the wire rope and damage the wire rope. Some common problems often arise when installing the crown wheel pad. So, how should we deal with them? Today we have collected and organized some common issues that may arise with different installation methods.

How to handle common problems with the installation of the crown wheel pad?

The crown wheel pad is mainly used to prevent direct contact between the crown wheel and the steel wire rope from causing mutual wear and tear, and plays a very important role in protecting the service life of the steel wire rope. When the wire rope is running, if the friction coefficient of the bucket is too high, it will hinder the rotation of the wire rope and damage the wire rope. Some common problems often arise when installing the crown wheel pad. So, how should we deal with them? Today we have collected and organized some common issues that may arise with different installation methods.

How to handle common problems with the installation of the crown wheel pad?

1. Installation of pressure blocks and fixed blocks

(1) The original bolt length is not enough. If the height of the fixed block above the gasket does not affect its use, the bolt can be replaced; Otherwise, the gasket bevel should be machined to meet installation requirements.

(2) The fixed block is not under pressure, and its bottom has come into contact with the friction wheel. Add the required thickness of steel plate to the inclined surface of the crown wheel liner.

(3) In addition to the special grease for the steel wire rope, timely clean the oil stains on the surface of the gasket.

(4) After two days of heavy vehicle operation, tighten all bolts again.

2. Oblique plug-in installation

(1) The gasket is uneven. It is said that tomorrow's wheel pad width will be wider than the groove. If the quantity is small, it can be ground on a grinding wheel, while if the quantity is large, it can be processed on a machine tool.

(2) The washer is too loose in the groove. Steel plates of the required thickness can be added to the front of the lining.

(3) Apply oil to the lining surface of the pulley of Luoyang crown block and clean it in a timely manner.

What are the safety technical measures for replacing the crown wheel pad?

1. Preparation before construction

(1) Organize all construction personnel to learn and implement this measure.

(2) Prepare all instruments and check if they are in good condition.

(3) Prepare friction pads and bolts that may be damaged.

(4) Transport the pulley pad to the appropriate location on the pulley platform.

(5) Electricians should install lighting fixtures and telephones on the pulley platform in advance for construction purposes.

(6) Mechanists should connect compressed air pipelines in advance for construction purposes.

2. Construction procedures

(1) Pull out the new and old ropes from the rope groove and place them on the crown wheel spindle.

(2) Turn the pulley pad baffle to the appropriate position on the underside of the pulley.

(3) Remove the baffle bolts and remove the baffle.

(4) Disassemble the dedicated air pick and remove a pair of crown wheel pads under the baffle.

(5) Remove the remaining crown wheel gaskets from bottom to top.

(6) Then install a new crown wheel gasket, but a pair of gasket positions must be left for future installation.

(7) Manually move the winch to the appropriate position until it is completely replaced.

(8) Install the baffle and put the new and old ropes on the main shaft of the crown wheel into the rope groove, the new rope into the rope groove, and the old rope on the side of the new rope.

(9) Clean up the site and complete the construction.