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Maintenance gantry crane

A technology for repairing doors and hook groups, which is applied to load hanging elements, trolley cranes, hoisting devices, etc. The effect of reducing the self-weight of the main beam and reducing the structure

Inactive Publication Date: 2011-08-03
DALIAN HUARUI HEAVY IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of inconvenient maintenance and overhaul of the traditional maintenance door crane working trolley, and the problem that the main girder bears too much load, the invention is designed

Method used

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  • Maintenance gantry crane
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  • Maintenance gantry crane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] Such as Figure 1-8 Shown is the preferred embodiment of the present invention.

[0017] exist Figure 1-3 Among them, the equipment consists of cart track 1, running mechanism 2, left lower beam 3, lifting mechanism 4, left outrigger 5, main beam 6, steering pulley A7, steering pulley D8, steering pulley B9, working trolley 10 , Turning pulley C11, turning pulley E12, turning pulley F13, wire rope collar 14, right outrigger 15, working trolley running mechanism 16, right lower beam 17, hook group 18, trolley track 19, hoisting mechanism wire rope 20 , Dolly operation steel wire rope A21, dolly operation steel wire rope B22 and anchoring device 23 are formed. The hoisting mechanism 4 is installed on the lower beam 3 on the left side, and the working trolley running mechanism 16 is installed on the lower beam 17 on the right side.

[0018] exist Figure 4 Among them, the hoisting mechanism 4 is composed of a hoisting reducer 4.1, a hoisting reel 4.2, a hoisting brake...

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Abstract

The invention relates to a maintenance gantry crane, in particular to a large gantry crane. A hoisting mechanism and a working trolley operating mechanism are respectively arranged on a left side lower cross beam and a right side lower cross beam, so that the stress situation of a main beam can be improved, the structure is simplified, and the self weight of the main beam can be lightened. Meanwhile, due to the arrangement form of the large gantry crane, the maintenance and the overhauling of the hoisting mechanism and the working trolley operating mechanism can be more convenient, the situation that the maintenance and the overhauling personnel need to stand on the main beam to maintain and overhaul when the traditional maintenance gantry crane is in use can be avoided, and a ladder and a platform which are used for maintenance and overhauling can be omitted.

Description

technical field [0001] The invention relates to the crane industry, in particular to a maintenance gantry crane for a large gantry crane. Background technique [0002] The maintenance gantry crane is usually installed on the top of the machine room of the large-tonnage gantry crane, and is used for hoisting when the gantry crane is overhauled. [0003] Most of the traditional working trolleys for maintenance of door cranes use electric hoists, or the hoisting mechanism and running mechanism of the working trolley are arranged on the main beam, and the lifting and operation of the working trolley are realized through wire rope traction. This arrangement has two major disadvantages: first, the maintenance and overhaul of the working trolley is inconvenient; second, the lifting weight of the maintenance door is generally small, and in the traditional arrangement, the self-weight of the lifting mechanism and the operating mechanism are all borne by the main beam. Increased main...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C19/00B66D1/12B66C11/20B66C11/24
Inventor 时军奎徐宏伟邢述钦陈长春
Owner DALIAN HUARUI HEAVY IND GRP CO LTD