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Centering oil cylinder with bidirectional buffering and crane

A two-way buffer and crane technology, applied in the direction of cranes, fluid pressure actuators, etc., to achieve the effects of preventing tail flicking and tire grinding, avoiding collisions, and avoiding reverse motion

Pending Publication Date: 2019-11-19
SANY AUTOMOBILE HOISTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a centering oil cylinder and a crane with two-way buffering, so as to solve the technical problem of centering and flicking of truck cranes in the prior art

Method used

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  • Centering oil cylinder with bidirectional buffering and crane
  • Centering oil cylinder with bidirectional buffering and crane
  • Centering oil cylinder with bidirectional buffering and crane

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Embodiment Construction

[0027] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0028] like figure 2 and image 3 As shown, the present invention provides a centering oil cylinder with two-way buffering, including a cylinder body 10, a first piston 20, a second piston 30 and a piston rod 120, and the cylinder body 10 includes a first chamber 40, a second chamber 50 And the centering section 60 arranged between the first chamber 40 and the second chamber 50, the first piston 20 is slidably arranged in the first chamber 40, the second piston 30 is slidably arranged in the second chamber 50, and the piston One end of the rod 120 is arranged between the first piston 20 and the second piston 30, and the centering section 60 is provided with an oil return channel 70; a first bu...

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Abstract

The invention relates to the technical field of engineering vehicles, in particular to a centering oil cylinder with bidirectional buffering and a crane. The centering oil cylinder with bidirectionalbuffering comprises a cylinder body, a first piston, a second piston and a piston rod, wherein the cylinder body comprises a first chamber, a second chamber and a centering section arranged between the first chamber and the second chamber, the first piston is slidably arranged in the first chamber, the second piston is slidably arranged in the second chamber, one end of the piston rod is arrangedbetween the first piston and the second piston, and an oil return flow channel is arranged in the centering section; and a first buffer cavity is arranged between the piston rod and the first piston,a second buffer cavity is arranged between the piston rod and the second piston, the first buffer cavity and the second buffer cavity both communicate with the oil return flow channel, and the first buffer cavity and the second buffer cavity are both filled with oil. According to the centering oil cylinder with the bidirectional buffering, buffering protection of the piston rod is realized in thecentering process, so that reverse movement of the piston rod, caused by collision between the piston rod and the first piston or the second piston, is avoided, and tail flick is avoided.

Description

technical field [0001] The invention relates to the technical field of engineering vehicles, in particular to a centering oil cylinder with two-way buffering and a crane. Background technique [0002] The truck crane needs to rely on multi-axle steering to meet the flexibility of the vehicle. When the truck crane is running at high speed, the rear axle is locked in the middle position by the centering oil cylinder with two-way buffer to keep going straight. In related technologies, the commonly used centering cylinders with two-way buffering are as follows: figure 1 As shown, the centering cylinder with two-way buffer includes cylinder bottom 1, cylinder barrel 2, guide sleeve 3, left pipeline 4, right pipeline 5, first passage 6, second passage 7, left piston 8, right piston 9 and piston rod 10. [0003] Wherein, the cylinder bottom 1 is arranged at one end of the cylinder to close the cylinder 2, the guide sleeve 3 is arranged at the other end of the cylinder 2, a left c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B15/22B66C23/36
CPCF15B15/1428F15B15/1476F15B15/22B66C23/36
Inventor 禹阳华熊超邹砚湖
Owner SANY AUTOMOBILE HOISTING MACHINERY
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