Hoisting equipment

Abstract

The invention relates to hoisting equipment. The hoisting equipment comprises a vehicle body and an arm frame, wherein the arm frame is a telescopic truss arm, one end of the arm frame is connected tothe vehicle body in a pitching and rotating mode in a vertical plane and adopts a foldable structure. Under the working condition of the hoisting equipment, the arm frame is unfolded; under the driving condition, the arm frame is retracted and folded in front of the vehicle body, and the elevation angle of the arm frame relative to the vehicle body can be adjusted according to the state of the road surface the vehicle body runs. The hoisting equipment directly retracts the arm frame and folds the arm frame in front of the vehicle body under the driving condition, the arm frame does not need to be detached during transfer, the arm frame does not need to be reinstalled during operation, so that the transfer and the operation efficiency can be improved, the center of gravity of the whole vehicle can be reduced, and the driving stability can be improved; and during the driving process, the elevation angle of the arm frame relative to the vehicle body can be adjusted according to the driving road surface state so as to adjust the center of gravity of the hoisting equipment and prevent the whole vehicle from tilting, the adaptability and climbing ability of the whole vehicle to harsh ground are improved, and thus the transfer safety is improved.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a lifting device. Background technique [0002] For some working environments where the assembly site is small, the transition road is harsh, narrow, and rough, such as the installation and construction of wind power in mountains, the current assembled lattice boom crane cannot be stretched and stretched, and it needs to be assembled on the ground, which occupies a large site and cannot adapt to the narrow space. Site: Restricted by the structure, the telescopic box boom crane has a small boom section and a large windward area of ​​the boom. Compared with the lattice boom with the same boom length and performance, it is heavy and expensive. [0003] Moreover, the current wheeled cranes cannot meet the needs of poor transition roads. The market urgently needs a crane that requires a small assembly site, can adapt to harsh ground, and has strong climbing capabilities ...

AI Technical Summary

Problems solved by technology

[0002] For some working environments where the assembly site is small, the transition road is harsh, narrow, and rugged, such as the installation and construction of wind power in mountains, the current assembled lattice boom crane cannot be stretched and the boom needs to be assembled on the ground, which occupies a large site and cannot adapt to the small space. Site: Restricted by the structure, the telescopic box-arm crane has a small boom section and a large windward area of ​​the boom. Compared with the lattice boom with the same boom length and performance, it is heavy and expensive

[0003] Moreover, the current wheeled cranes cannot meet the needs of poor transition roads. The market urgently needs a crane that requires a small assembly site, can adapt to harsh ground, and has strong climbing capabilities to meet the requirements of low road construction costs, transition and construction safety. Efficient demand

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