Adjustment device for climbing frame of tower crane

Abstract

The invention discloses an adjustment device for a climbing frame of a tower crane. The adjustment device comprises a helical sleeve I (1), a screw rod (2), a handle (3), a nut (4), a helical sleeve II (5), a safety chain (6), a climbing frame main line (7), a standard knot main line (8) and an adjustment device body (9), wherein the standard knot main line is connected together with the climbing frame main line through the adjustment device body; the adjustment device body consists of the helical sleeve I, the screw rod, the handle, the nut (4), the helical sleeve II (5) and the safety chain; two ends of the screw rod are fixedly connected with the helical sleeve I and the helical sleeve II; a through hole is formed in the middle of the screw rod; the safety chain is wound on the standard knot main line; the helical sleeve I is jacked on the climbing frame main line; the helical sleeve II is jacked on the standard knot main line. When knot adding work is met, the climbing frame of the tower crane and the upper structure can guarantee the perpendicularity of the section of a tower body; a connection bolt for introducing a standard knot is mounted quickly and efficiently, and the safety coefficient of jacking knot adding of the tower crane is also increased.

Description

technical field [0001] The invention relates to an adjusting device for a climbing frame of a tower crane. Background technique [0002] When the tower crane is jacking up, due to the eccentricity of the structure of the upper part of the tower crane, there will be an imbalance on both sides of the fulcrum of the oil cylinder, which will cause the climbing frame of the tower crane to tilt during jacking, and it will not be possible to maintain the perpendicularity between the climbing frame and the tower body section The height increases the risk of jacking and adding joints, and the introduction of the non-concentricity of the connecting bushing holes of the standard joints and the connecting bushings of the lower support makes it difficult to install. Contents of the invention [0003] Aiming at the problems existing in the above-mentioned prior art, the present invention provides a tower crane climbing frame adjustment device, which can ensure the perpendicularity of th...

AI Technical Summary

Problems solved by technology

[0002] When the tower crane is jacking up, due to the eccentricity of the structure of the upper part of the tower crane, there will be an imbalance on both sides of the fulcrum of the oil cylinder, which will cause the climbing frame of the tower crane to tilt during jacking, and it will not be possible to maintain the perpendicularity between the climbing frame and the tower body section The height increases the risk of jacking up and adding joints, and the introduction of the non-concentricity of the connecting bushing holes of the standard joints and the connecting bushings of the lower support makes it difficult to install

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