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Crane support leg, support leg hydraulic system and crane

A hydraulic system, crane technology, applied in cranes, bottom support structures, lifting equipment braking devices, etc., can solve problems such as low strength and weak lifting capacity

Active Publication Date: 2012-01-04
XUZHOU HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strength of part a of this structure is low, resulting in weak lifting capacity of the whole vehicle in a half-stretched state

Method used

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  • Crane support leg, support leg hydraulic system and crane
  • Crane support leg, support leg hydraulic system and crane
  • Crane support leg, support leg hydraulic system and crane

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Embodiment Construction

[0044] The core of the present invention is to provide a crane outrigger. The outriggers of the crane have high strength in the half-extended state, which can significantly improve the lifting performance of the whole vehicle.

[0045] Another core of the present invention is to provide an outrigger hydraulic system for controlling the outriggers of the crane, and a crane provided with the outriggers of the crane.

[0046] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0047] In this article, terms such as "up, down, left, right" indicating orientation are based on the positional relationship of the drawings, and should not be interpreted as an absolute limitation on the scope of protection. Similarly, terms such as "first, second" It is only for the convenience of description to dist...

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PUM

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Abstract

The invention discloses a crane support leg. The crane support leg comprises a first level horizontal support leg, a second level horizontal support leg and a fixed support leg, wherein the second level horizontal support leg is sleeved on the first level horizontal support leg, and the first level horizontal support leg is sleeved on the fixed support leg; the crane support leg is characterized in that: a first horizontal oil cylinder is arranged between the first level horizontal support leg and the fixed support leg, and a second horizontal oil cylinder is arranged between the second level horizontal support leg and the first level horizontal support leg. The crane support leg has relatively high strength in a half-stretching state, and can obviously improve the hoisting performance of the whole crane. The invention further discloses a support leg hydraulic system for controlling the crane support leg, and a crane provided with the crane support leg.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to crane outriggers. The invention also relates to an outrigger hydraulic system for controlling said crane outrigger and a crane provided with said crane outrigger or outrigger hydraulic system. Background technique [0002] A crane is a construction machine that can lift vertically within a certain range or lift vertically and move heavy objects horizontally. [0003] In order to ensure sufficient safety and stability during work, that is, to ensure the safety factor of the whole machine against overturning, the crane is generally equipped with telescopic outriggers, so as to provide the crane with a larger The supporting span can increase its lifting capacity without reducing the maneuverability of the crane. [0004] The telescopic outriggers are mainly composed of fixed outriggers and movable outriggers. The fixed outriggers and movable outriggers are parts weld...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C5/00B66C23/80
Inventor 史飞曹培雷刘东宏张永亮
Owner XUZHOU HEAVY MASCH CO LTD
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