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Slewing structures and cranes for cranes

A technology of slewing structures and cranes, which is applied to cranes and other directions, and can solve problems such as unresolved maintenance

Active Publication Date: 2016-01-13
ZOOMLION HEAVY IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And this structure still fails to solve the difficulties faced when the bolts connecting the inner ring 40 and the slewing platform 20 are overhauled

Method used

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  • Slewing structures and cranes for cranes
  • Slewing structures and cranes for cranes
  • Slewing structures and cranes for cranes

Examples

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Embodiment Construction

[0033] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0034] In the present invention, unless stated to the contrary, the used orientation words "up" and "down" usually refer to "down" for the part close to the ground, and "up" for the part away from the ground.

[0035] refer to image 3 , The invention provides a slewing structure of a crane. According to an embodiment of the present invention, the slewing structure includes an underframe 1 located below and a slewing platform 2 located above. Wherein, an outer ring 3 is connected to the top surface of the bottom frame 1 , and an inner ring 4 is connected to the bottom surface of the rotary platform 2 . The outer ring 3 has a first fitting portion 31 , and the...

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PUM

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Abstract

The invention provides a slewing structure of a crane. The slewing structure comprises an underbed (1) and a slewing platform (2), wherein the top surface of the underbed is connected with an outer ring (3) provided with a first cooperation part (31), the bottom surface of the slewing platform is connected with an inner ring (4) provided with a second cooperation part (41), the first cooperation part and the second cooperation part are in concave-convex spacing cooperation, the inner ring comprises a first part (5) connected with the bottom surface of the slewing platform and a second part (6) detachably connected with the first part, and the second cooperation part is arranged on the second part. The invention further provides the crane with the slewing structure. According to the invention, the inner ring of the slewing structure is arranged to be of a split structure, which facilitates transportation and overhauling of the slewing structure.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a crane slewing structure and the crane. Background technique [0002] A slewing structure is arranged between the upper car and the lower car of the crane to realize the rotation of the upper car relative to the lower car. [0003] attached figure 1 And attached figure 2 The two rotary structures commonly used in the prior art are respectively shown in the figure. An outer ring 30 is connected to the top surface of the vehicle frame 10 getting off the vehicle, and an inner ring 40 is connected to the bottom surface of the turning platform 20 on the vehicle. Between the inner ring 40 and the outer ring 30 there is a concave-convex limiting fit structure along the circumferential direction. Driven by the drive device, the inner ring 40 and the outer ring 30 rotate relative to each other along the circumferential direction, so as to realize the rotation of the upper vehicl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C23/84
Inventor 马芬芬姚钢刘志刚
Owner ZOOMLION HEAVY IND CO LTD
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