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Arm pin mechanism and crane

A technology of cranes and arm pins, which is applied to cranes and other directions, can solve the problems of poor reliability of the arm pin mechanism, and achieve the effect of improving work stability and reliability

Active Publication Date: 2017-12-08
河北雷萨重型工程机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The main purpose of the present invention is to provide an arm pin mechanism and a crane, so as to solve the problem of poor working reliability of the arm pin mechanism in the prior art, and to solve the locking problem when the arm pin mechanism is outside the arm frame and between the arm frames

Method used

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Embodiment Construction

[0035] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0036] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0037] In the present invention, unless otherwise stated, the directional words used such as "upper, lower, top, bottom" are usually for the directions shown in the drawings, or for the components themselves in vertical, In terms of vertical or gravitational direction; similarly, for the convenience of understanding and description, "inner and outer" refers to the inner and outer relative to the contour of each component itself, but the...

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Abstract

The invention provides an arm pin mechanism and a crane. The arm pin mechanism comprises an arm pin body and a pin pulling assembly. The arm pin body comprises a lock core which has a locking state for locking two adjacent arm frames and an unlocking state for unlocking the two adjacent arm frames; and the pin pulling assembly makes contact with or is separated from the lock core, and when the pin pulling assembly makes contact with the lock core, force is applied to the locking core, so that the lock core switches between the locking state and the unlocking state. According to the arm pin mechanism, the locking and unlocking problems of the arm pin mechanism when the arm pin mechanism is arranged on the outer side of the corresponding arm frame or between the arm frames are solved, and meanwhile the problem that in the prior art, the working reliability of an arm pin mechanism is poor is solved.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to an arm pin mechanism and a crane. Background technique [0002] At present, in the structure of cranes, fire trucks, etc., telescopic booms are generally used. The arm pin mechanism is used on the boom to realize interlocking and unlocking between adjacent booms. In addition, the arm pin mechanism can also realize the connection between the booms and the transmission of the load. When the booms are extended and retracted, the adjacent booms are axially unlocked to realize relative axial sliding movement. [0003] The existing arm pin mechanism has the following problems: [0004] 1. When the arm pin mechanism is locked between the arms, the spring force is used to avoid the retraction, and there is no additional measures to prevent the arm pin from retracting; [0005] 2. The arm pin mechanism is in a normally locked state; [0006] 3. After the arm pin mechani...

Claims

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Application Information

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IPC IPC(8): B66C23/62B66C23/687
CPCB66C23/62B66C23/708
Inventor 韩润录
Owner 河北雷萨重型工程机械有限责任公司
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