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Flexible weight-reducing main girder structure of a crane

A technology for cranes and main girders, which is applied in the field of flexible weight-reducing main girder structures of cranes, which can solve the problems of large box-type main girders, inconvenient transportation and installation, and high quality, so as to achieve not easy to slide left and right, easy to transport, and reasonable structure Effect

Active Publication Date: 2017-02-01
德马科起重机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Crane is a kind of mechanical equipment widely used in urban construction, bridge and road construction, and hoisting cargo yards. The main girder of the crane is the core part that bears the weight. The rationality of its structure and the quality of its performance are directly related to the work of the crane. Performance, with the development of cranes in the direction of large-scale and lightweight, the requirements for the structure of the main girder of the crane are also increasing. The mass of the traditional box-type main girder is too large, and its structure is an integrated structure. Large, inconvenient for transportation and installation, and has been greatly restricted during use

Method used

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  • Flexible weight-reducing main girder structure of a crane
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  • Flexible weight-reducing main girder structure of a crane

Examples

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Effect test

Embodiment 1

[0022] Such as Figure 1-7 As shown, a flexible weight-reducing main girder structure of a crane includes a main girder body 1, and the main girder body 1 includes an upper fixing rod 2 and a lower fixing plate 4, and the two sides of the upper fixing rod 2 are provided with Bolt groove 3, the both sides of described lower fixing plate 4 are provided with screw rod groove 5, between described upper fixing rod 2 and lower fixing plate 4, be evenly provided with oblique support bar 6, described bolt groove 3 and screw rod Bolts A7 are interspersed between the grooves 5, the upper nut 8 screwed on the bolt A7 is arranged above the screw groove 5, and the lower nut 8 screwed on the bolt A7 is arranged below the screw groove 5. Cap 9, the two ends of the lower fixing plate 4 are equipped with a flat hanging rod 10, the upper part of the end of the flat hanging rod 10 is provided with a groove 11, and a counterweight is placed on the flat hanging rod 10 12. The end of the flat hang...

Embodiment 2

[0025] Such as Figure 1-7 As shown, a flexible weight-reducing main girder structure of a crane includes a main girder body 1, and the main girder body 1 includes an upper fixing rod 2 and a lower fixing plate 4, and the two sides of the upper fixing rod 2 are provided with Bolt groove 3, the both sides of described lower fixing plate 4 are provided with screw rod groove 5, between described upper fixing rod 2 and lower fixing plate 4, be evenly provided with oblique support bar 6, described bolt groove 3 and screw rod Bolts A7 are interspersed between the grooves 5, the upper nut 8 screwed on the bolt A7 is arranged above the screw groove 5, and the lower nut 8 screwed on the bolt A7 is arranged below the screw groove 5. Cap 9, the two ends of the lower fixing plate 4 are equipped with a flat hanging rod 10, the upper part of the end of the flat hanging rod 10 is provided with a groove 11, and a counterweight is placed on the flat hanging rod 10 12. The end of the flat hang...

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Abstract

The invention relates to a flexible weight-reducing main beam structure of a crane. The flexible weight-reducing main beam structure of the crane comprises a main beam body, wherein the main beam body comprises an upper fixing rod and a lower fixing plate; bolt grooves are formed in two sides of the upper fixing rod; screw grooves are formed in two sides of the lower fixing plate; bolts A are inserted between the bolt grooves and the screw grooves; upper screw caps screwed with the bolts A are arranged at the upper parts of the screw grooves; lower screw caps screwed with the bolts A are arranged at the lower parts of the screw grooves; flat hanging rods are mounted at two ends of the lower fixing plate; counterweight blocks are arranged on the flat hanging rods; a through hole is formed in the middle of a protection block; a hanging plate is arranged onthe upper part of the inner side of the protection block. Through the flexible weight-reducing main beam structure of the crane, the number of the bolts A is defined according to the specific working condition in the using process of the main beam; the number of the counterweight blocks can be increased or reduced according to the working condition of the crane; in general, the flexible weight-reducing main beam structure of the crane has the advantages that the structure is reasonable, is convenient to transport, mount and dismount, is safe and reliable, and is capable of increasing or reducing the counterweight according to the working environment of the crane.

Description

technical field [0001] The invention belongs to the technical field of cranes, and in particular relates to a flexible weight-reducing main girder structure of a crane. Background technique [0002] Crane is a kind of mechanical equipment widely used in urban construction, bridge and road construction, and hoisting cargo yards. The main girder of the crane is the core part that bears the weight. The rationality of its structure and the quality of its performance are directly related to the work of the crane. Performance, with the development of cranes in the direction of large-scale and lightweight, the requirements for the structure of the main girder of the crane are also increasing. The mass of the traditional box-type main girder is too large, and its structure is an integrated structure. Large, inconvenient for transportation and installation, and have been greatly restricted during use. Contents of the invention [0003] The object of the present invention is to ove...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C6/00
CPCB66C6/00
Inventor 董彦波贾金朋王建堂张莹
Owner 德马科起重机械有限公司
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