Tower crane luffing trolley motor replacement device and replacement method

Abstract

The invention provides a tower crane luffing trolley motor replacement device and a replacement method. The device includes: a supporting part, including a top plate, and the top plate is fixed on the upper end of the upper chord of the boom; The rotary sleeve on the outer periphery of the vertical shaft allows the suspension part to rotate around the vertical shaft; the suspension part includes a suspension arm, the end of the suspension arm is fixedly connected to the upper end of the rotary sleeve, and the other end of the suspension arm is provided with a baffle, The two connecting plates are symmetrically arranged on both sides of the suspension arm in the width direction. Two pin holes are arranged vertically at intervals on the two connecting plates. The pin shaft passing through the pin holes on the upper part of the connecting plate installs the pulley on the suspension The upper end of the arm, the pin shaft passing through the pin hole at the bottom of the connecting plate is used as the hanging point of the chain; the upper hook of the chain is hung on the hanging point when the chain is reversed. In the present invention, one person can complete the maintenance work of the motor, and the motor can be removed and installed at 360 degrees without dead angle by utilizing the rotation of the suspension arm, the sliding of the pulley, and the lifting and lowering of the reverse chain.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a motor replacement device and replacement method for a luffing trolley of a tower crane. Background technique [0002] The tower crane includes booms and balance arms on both sides of the tower body, and the luffing motor 2 of the tower crane is used to pull the trolley on the boom to move along the boom (big arm) 300 of the tower crane, such as figure 2 As shown, the motor 2 transmits power through the wire rope coiled on the drum 3 of the luffing machine. The luffing motor 2 is installed on the boom and away from the control room. Usually, the luffing motor 2 is about 6-10 meters away from the tower body of the tower crane. The installation position is as follows: figure 1 shown. In the use of tower cranes, most of the buildings are high-rise or super-high-rise buildings. When the luffing motor burns out and replaces or breaks down and is removed for maintenan...

AI Technical Summary

Problems solved by technology

[0005] Three people removed the old motor and lifted it to the junction of the boom and the tower body, put the old motor on the jacking platform with a chain hoist, and hoisted the new motor to the junction of the boom and the tower body. Lift the luffing motor on the boom track to the position of the luffing hoist (two people are needed to hold the boom with one hand and lift the motor with the other, because there are too many people to lift the motor when walking on the boom track. Uniform, unsynchronized actions, poor coordination with each other, prone to accidents, and the seat belt is not easy to hang)

Moreover, the motor is heavy. If you need to stop and rest when lifting the motor, the motor will not be stable when placed on the boom track.

Especially when installing the motor, the operation space is small, so it should be operated by three people (two people lift the motor, one person is responsible for the insertion of the motor shaft), the angle adjustment is time-consuming and laborious, the operation is difficult and labor-intensive

[0006] For the above problems, there is no better solution

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