Weight-balancing type lifting method and equipment

A technology of gravity balance and hoisting method, applied in cranes and other directions, can solve the problems of large overturning moment of the fuselage and inability to use

Inactive Publication Date: 2011-10-05
陈炯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the problem that the fuselage of the hydraulic crane in the prior art bears a large overturning moment during the hoisting process, and cannot be used in special construction sites and special hoisting operations.

Method used

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  • Weight-balancing type lifting method and equipment
  • Weight-balancing type lifting method and equipment
  • Weight-balancing type lifting method and equipment

Examples

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Embodiment Construction

[0022] The following examples illustrate the gravity-balanced lifting method and the gravity-balanced hydraulic crane of the present invention.

[0023] The gravity-balanced lifting method of the present invention includes:

[0024] a. Operate the main hydraulic crane or auxiliary hydraulic winch and lower the main hook or auxiliary hook according to the requirements of the hoisting operation;

[0025] b. According to the requirements of hoisting operations, operate the boom hydraulic cylinder and the folding hydraulic cylinder, and the main boom and auxiliary boom of the luffing boom are formed into a certain shape and position;

[0026] c. Operate the jacking hydraulic cylinder and keep the main balance boom in a horizontal state;

[0027] d. According to the needs of hoisting operation, install the auxiliary balance boom;

[0028] e. Hang heavy objects in the main hook or auxiliary hook according to the requirements of the hoisting operation;

[0029] f. According to the needs of hoist...

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Abstract

The invention relates to a gravity balance type hoisting method and a hoisting apparatus, a gravity balance type hydraulic hoist, for hoisting heavy articles in different complicated terrains in field. The gravity balance type hydraulic hoist is composed by employing a general hydraulic hoist as the machine body, and mounting a gravity balance type hydraulic hoist and a moving counterweight on the machine body. The gravity balance type hydraulic hoist is composed of collapsible hoisting arms, hoisting arm bases, a master hydraulic winch and a slave hydraulic winch. The collapsible hoisting arms of the gravity balance type hydraulic hoist are mounted on the hoisting arm bases in a lever form, and the gravity balance type hydraulic hoist has multiple hoisting forms such as collapsible arm hoisting, balance hoisting, gantry hoisting, and tower hoisting. When hoisting a heavy article, the collapsible hoisting arms employ the balance moment balance portions of the master and slave balance hoisting arms to hoist the gravity moment of the heavy article according to the lever balance principle, thereby lowering the overturning moment of the gravity balance type hydraulic hoist body exerted by the gravity moment of the hoisted heavy article. Therefore, the invention is very suitable for use in special construction fields and special hoisting work of construction engineering of water conservancy, electric power, petrochemical industry and metallurgical industry.

Description

Technical field [0001] The invention relates to a gravity-balanced hoisting method and hoisting equipment-gravity-balanced type used in special hoisting sites and special hoisting operations in municipal construction, real estate development, transportation construction, water conservancy, petrochemical, and metallurgical mine construction projects Hydraulic cranes, gravity-balanced hydraulic cranes, the boom is a folding type, with multiple hoisting methods of folding arm cranes, balanced cranes, gantry cranes, and tower cranes. Therefore, the machine has a wide range of use value in municipal construction, real estate development, transportation construction, water conservancy and power, petrochemical, metallurgical mine construction projects. Background technique [0002] The boom of a hydraulic crane is a telescopic boom built in multiple sections. The boom cannot be folded; the hook position is at the front end of the boom, and there is only one hook; the counterweight is fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/36B66C23/62B66C23/64B66C23/72
Inventor 陈炯
Owner 陈炯
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