Combined turntable of crawler crane

A crawler crane, a combined technology, applied in the direction of cranes, etc., can solve the problems of increased use cost, low work efficiency, and difficult transportation transfer, and achieve the effect of reduced use cost, high work efficiency, and easy transportation transfer

Inactive Publication Date: 2010-12-15
LIAONING FUWA HEAVY IND MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This brings difficulties to transportation and transition, low work efficiency and high use cost

Method used

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  • Combined turntable of crawler crane
  • Combined turntable of crawler crane
  • Combined turntable of crawler crane

Examples

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Embodiment Construction

[0011] Ordinary crawler cranes only have a standard turntable 1 , and when meeting the need to expand the lifting capacity, a superlift counterweight device 13 is also required to be equipped with a standard counterweight device 12 . And after the present invention has increased additional turntable 2, needn't be equipped with super lifting counterweight device again.

[0012] The combined turntable of the crawler crane is composed of a standard turntable 1 and an additional turntable 2. The standard turntable 1 and the additional turntable 2 are both plate-welded box structures; A pair of counterweight mounting lugs 5 are arranged on the turntable. When only the standard turntable is used, the counterweight is hung on the lugs 3 and 4, and when the additional turntable is used, the counterweight is hung on the lugs 4 and 5. The standard turntable 1 and the additional turntable 2 are connected by pin shafts. There are two sets of corresponding pin holes at the junction of the...

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PUM

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Abstract

The invention discloses a combined turntable of a crawler crane. The combined turntable comprises a standard turntable; a counterweight mounting lug is arranged on the standard turntable; the combined turntable also comprises an additional turntable; the combined turntable is formed by connecting the standard turntable and the additional turntable; and a counterweight mounting lug is also arranged on the additional turntable. The combined turntable changes the gravity center of the whole crane by changing the mounting position of a counterweight, and increases a steady torque to improve the hoisting performance. The combined turntable changes a traditional single standard turntable structure, is designed into a combined piece and consists of the standard turntable and the additional turntable. The combined turntable can realize full automation of the working condition of a long main arm, improves the hoisting height, increases the hoisting weight, has small rotary radius, can work in a small space, can be matched according to the practical need of a user, is easy to transport and transfer, has high work efficiency, and reduces the using cost. The combined turntable has reasonable design, is convenient for production and manufacture, and is particularly suitable for the large-tonnage crawler crane.

Description

1. Technical field [0001] The invention relates to a turntable structure of a crawler crane. 2. Background technology [0002] In some workplaces, there is a requirement for proper expansion of the lifting capacity of the crawler crane, and the crane must be equipped with a superlift counterweight device to meet the on-site operation requirements. Under this working condition, the working radius of the crane is large, and the corresponding working space is relatively large. When assembling the crane, a large auxiliary crane is needed to cooperate with the work. This brings difficulties to the transportation transition, low work efficiency, and increased use costs. 3. Contents of the invention [0003] The object of the present invention is to provide a combined turntable of a crawler crane, so that the crane does not need to be equipped with a superlift counterweight device. It is completely self-lifting under certain conditions, and the lifting performance is improved t...

Claims

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Application Information

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IPC IPC(8): B66C23/72
Inventor 刘亚军王宪国魏文儒罗琰峰李子健
Owner LIAONING FUWA HEAVY IND MACHINERY
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