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Welded-railway-type crane main beam

A crane and rail-type technology, which is applied in the field of welding the main girder of rail-mounted cranes, can solve the problems of increasing the stress of the crane beam workshop structure, the dead weight of the whole crane, and increasing the investment of the workshop, so as to reduce the maintenance workload and Small self-weight, avoid loose effect

Inactive Publication Date: 2013-12-11
谢合清
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main girder of the traditional box-shaped structure or the truss structure of the crane is not effectively connected with the main beam by the trolley track. The trolley track only plays the role of running the trolley and transmitting the pressure of the trolley wheel. The role of the rail track, so the general stiffener spacing is 0.5m, generally a long stiffener is set for every two to three short stiffeners; the main girder of the crane is generally made of low-carbon steel structural materials due to the stiffness (deflection) control, used The plate is too thick, resulting in a heavy weight of the whole crane, which increases the stress on the crane beam and the plant structure, and increases the investment in the plant

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  • Welded-railway-type crane main beam
  • Welded-railway-type crane main beam
  • Welded-railway-type crane main beam

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Embodiment Construction

[0012] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0013] see Figure 1 to Figure 3 , The main girder of the welded rail crane includes trolley rail 1, upper flange 2, web 3, lower flange 4, long stiffener 5, short stiffener 6, and longitudinal stiffener 7. It is characterized in that the trolley track 1 and the upper flange 2 are welded together; the lower end of the long stiffener 5 is separated from the lower flange 4 by 20~50mm, one long stiffener 5 and two to three short stiffeners 6 are arranged in sequence, and the distance between the stiffeners 0.5~0.75m, the long stiffener 5 and the short stiffener 6 both play the role of track support points, which are equivalent to the role of railway sleepers. The ribs 7 play a role in limiting the instability of the compression zone of the web 3 .

[0014] Since the trolley rail 1 and the upper flange 2 of the main girder of the welded rail cra...

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Abstract

The invention discloses a welded-railway-type crane main beam. A crane trolley running railway is welded with a top flange plate of a box-type main beam or an upper chord of a truss-type main beam, so that intervals among stiffening ribs of the box-type main beam increase from 0.5m to 0.75m, thereby reducing the steel using quantity of the top flange plate and the stiffening ribs of the box-type main beam of a crane, and reducing the steel using quantity of the upper chord of the truss-type main beam; because a railway is welded with the main beam of the crane, railway pressing plates are saved, and the railway is prevented from being loosened, thereby reducing the repairing and maintaining workload of the crane railway.

Description

technical field [0001] The invention belongs to the field of metal structures of cranes, and relates to a main girder of a welded rail type crane. Background technique [0002] The main girder of traditional bridge or gantry cranes has two structural types: box structure and truss structure. The main girder of box structure is generally composed of upper flange plate, lower flange plate, web and long and short stiffeners. The lower chord and the web are composed, and the trolley track is generally fixed on the upper chord with a welded steel pressure plate. [0003] The main girder of the traditional box-shaped structure or the truss structure of the crane is not effectively connected with the main beam by the trolley track. The trolley track only plays the role of running the trolley and transmitting the pressure of the trolley wheel. The role of the rail track, so the general stiffener spacing is 0.5m, generally a long stiffener is set for every two to three short stiffe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C6/00
Inventor 谢合清
Owner 谢合清
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