Hoisting equipment and method for adjusting counterweight of hoisting equipment

By switching the installation position of the first counterweight in the lifting equipment, the problem of unstable center of gravity of the crawler crane during uphill and downhill processes is solved, realizing bidirectional stability of the equipment on uphill and downhill sections and reducing transportation costs.

CN121044486APending Publication Date: 2025-12-02ZHEJIANG SANY EQUIPMENT CO LTD
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Patent Information

Application Number
CN202511458522.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-13
Publication Date
2025-12-02

AI Technical Summary

Technical Problem

The center of gravity of telescopic boom crawler cranes is unstable when going uphill or downhill, making it impossible to maintain stability in both directions. Removing the counterweight increases transportation costs.

Method used

A lifting device is provided, equipped with a switchable first counterweight mounted on a work platform or chassis to balance the center of gravity to adapt to incline and descent requirements. By switching the counterweight position between the work platform and the chassis, the stability of the lifting device when going up or down slopes is ensured.

Benefits of technology

Without removing the counterweight, improve the stability of the lifting equipment on uphill and downhill slopes, reduce transportation costs, and enhance the equipment's passability and safety.

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Abstract

The invention relates to the technical field of cranes, and discloses hoisting equipment and a method for adjusting a counterweight of the hoisting equipment. The hoisting equipment comprises a chassis, a working platform and a first counter weight, the chassis comprises a slewing bearing, the working platform comprises a rotary table and a working arm, the rotary table is arranged on the slewing bearing, the working arm is arranged on the rotary table, and the first counter weight can be installed between the chassis and the working platform in a switching mode. In the uphill and downhill process, at least part of the first balance weight is installed on the chassis, so that the gravity center of the hoisting equipment descends and gets close to the center of the chassis, the safety angle of the hoisting equipment in the backward leaning and forward leaning process can be increased while the first balance weight is not disassembled, the transportation cost can be reduced, and the bidirectional stability of uphill and downhill can be considered.
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