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Horizontal pin inserting and pulling device, bolt type telescopic arm and crane

A plug-in, leveling technology, applied in cranes, quick-action fasteners, etc., can solve the problems of large force, reduce the reliability of the outrigger, concentration, etc., and achieve the effect of improving the stability of the force

Active Publication Date: 2014-11-19
XUZHOU HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the plug-in pin device in the prior art only has one arm pin, when the multi-section outrigger is extended, the outriggers are only connected by a single arm pin, and the arm pin bears a large and concentrated force, which reduces the Reliability of outrigger

Method used

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  • Horizontal pin inserting and pulling device, bolt type telescopic arm and crane
  • Horizontal pin inserting and pulling device, bolt type telescopic arm and crane
  • Horizontal pin inserting and pulling device, bolt type telescopic arm and crane

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Embodiment Construction

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0040] In describing the present invention, it is to be understood that the terms "central", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rathe...

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PUM

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Abstract

The invention relates to a horizontal pin inserting and pulling device, a bolt type telescopic arm and a crane, wherein the horizontal pin inserting and pulling device comprises a bracket, wherein pin pulling claws for inserting and pulling pin shafts are respectively arranged at the two sides of the bracket; the two pin pulling claws are both connected with a synchronous rotating mechanism; the synchronous rotating mechanism rotates to drive the two pin pulling claws to perform synchronous opposite movement or synchronous deviating movement, and is connected with an arm pin oil cylinder and a reset mechanism arranged on the bracket; the arm pin oil cylinder drives the synchronous rotating mechanism to rotate; and the reset mechanism drives the synchronous rotating mechanism to be reset. The horizontal pin inserting and pulling device drives the two pin pulling claws to perform synchronous opposite movement or synchronous deviating movement through the rotation of the synchronous rotating mechanism, so that two horizontal arm pins can be synchronously inserted and pulled, and the stress stability of the arm pins is improved.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a horizontal plug-in and pull-out device, a plug-type telescopic arm and a crane. Background technique [0002] Cranes are important equipment widely used in engineering construction, mainly including basic actions such as lifting, telescopic, luffing, and slewing. The telescopic function of the telescopic boom (referred to as the boom) is realized through the combined action of the telescopic oil cylinder, the arm pin, and the cylinder pin. [0003] With the increase of the tonnage of the crane, the telescopic form of the single-cylinder bolt is mostly used, that is, there is a pin shaft above the tail end of each boom section that can lock the boom section with the outer boom section and move up and down (because Installed on the outrigger called arm pin), the function of the arm pin is to realize the locking (fixed connection) and unlocking between the outrigger and the o...

Claims

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Application Information

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IPC IPC(8): B66C23/62F16B21/06B66C23/687
Inventor 胡小冬张海燕李超
Owner XUZHOU HEAVY MASCH CO LTD