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Pin inserting and pulling mechanism and crane

A technology of plugging and unplugging pins and booms, which is applied in cranes and other directions, can solve the problem of time-consuming and laborious manual installation of pins, and achieve the effects of high efficiency and increased connection strength.

Active Publication Date: 2021-12-07
HUNAN SANY MEDIUM TONNAGE HOISTING MASCH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The problem solved by the invention is the time-consuming and labor-intensive installation of the pin shaft manually

Method used

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  • Pin inserting and pulling mechanism and crane
  • Pin inserting and pulling mechanism and crane
  • Pin inserting and pulling mechanism and crane

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Embodiment Construction

[0033] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0034] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

[0035] In the description of this specification, descriptions with reference to the terms "an embodiment", "an embodiment" and "an implementation" mean ...

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Abstract

The invention relates to the technical field of cranes, in particular to a pin inserting and pulling mechanism and a crane. The pin inserting and pulling mechanism is applied to a cargo boom, and the cargo boom comprises a main boom and an auxiliary boom. The pin inserting and pulling mechanism comprises a driving element arranged on the main boom, a transmission assembly, a lead screw and a limiting assembly, wherein a driving element in driving connection with the transmission assembly; the lead screw is in transmission connection with the transmission assembly, and the lead screw is in threaded transmission connection with a pin shaft; the limiting assembly is used for limiting rotation of the pin shaft; and the lead screw is used for driving the pin shaft to move in the axis direction of the lead screw, so that the pin shaft can be inserted into the main boom and the auxiliary boom or pulled out of the main boom and the auxiliary boom. The transmission assembly is driven to operate through the driving element, then the lead screw is driven to rotate, rotation of the pin shaft is limited through the limiting assembly, and the pin shaft moves in the opposite direction or in the reverse direction in the length direction of the lead screw, so that then pin inserting and pulling of the main boom and the auxiliary boom are achieved automatically.

Description

technical field [0001] The invention relates to the technical field of cranes, in particular to a plug-in mechanism and a crane. Background technique [0002] When a crane is hoisting a small tonnage over a long distance or a super high distance, it is usually necessary to install a jib on the main jib to increase the length of the jib. During installation, the pin shaft is inserted into the connecting hole of the main arm and the auxiliary arm to realize the hinged connection between the auxiliary arm and the main arm, so that the auxiliary arm can rotate around the pin shaft relative to the main arm. However, in the prior art, the pin shaft is usually installed manually, which is time-consuming and laborious when the jib is frequently installed and disassembled, and the pin shaft is easily lost. Contents of the invention [0003] The problem solved by the invention is time-consuming and labor-intensive manual installation of pin shafts. [0004] In order to solve the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C23/64B66C23/68
CPCB66C23/64B66C23/70Y02A20/204
Inventor 曾涛游浩杰王后
Owner HUNAN SANY MEDIUM TONNAGE HOISTING MASCH CO LTD
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