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Hanger limiting mechanism for locking device of digging end movable arm of loader digger

A backhoe loader and locking device technology, which is applied to mechanically driven excavators/dredgers, earth movers/shovels, construction, etc., can solve problems such as deformation of the hook, and achieve not easily deformed, high structural strength, The effect of high limit accuracy

Inactive Publication Date: 2012-04-11
JIANGSU LIUGONG MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The limiting part is also used to connect the tails of the two connecting plates. The above structure solves the problem of deformation of the tail of the hook and improves the reliability of the hook

Method used

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  • Hanger limiting mechanism for locking device of digging end movable arm of loader digger
  • Hanger limiting mechanism for locking device of digging end movable arm of loader digger
  • Hanger limiting mechanism for locking device of digging end movable arm of loader digger

Examples

Experimental program
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Effect test

Embodiment Construction

[0011] As shown in the figure, a hook limit mechanism of the boom locking device at the digging end of a backhoe loader includes a hook 3 that cooperates with the hook 2 on the boom 1 at the digging end to lock the boom and is used to connect the hook 3 to the whole The pin shaft 5 connected to the slewing support 4 of the car, the end of the hook 3 and the pin shaft 5 is hinged, and the hook 3 includes a hook bar 31 connected with the lock hook 2, two parallel to each other and perpendicular to the hook bar 31. The connecting plate 32 in the extension direction and the limiting portion 33 at the tail of the two connecting plates 32 . When the locking device needs to be unlocked, the hook 3 rotates around the hinge point at the end of the pin shaft 5, and when the hook 3 rotates to a set angle, the stopper 33 contacts the circumferential surface of the pin shaft 5 to limit the continued rotation of the hook 2 to achieve the limit Features. The limiting portion 33 is also used...

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PUM

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Abstract

The invention relates to a hanger limiting mechanism for a locking device of a digging end movable arm of a loader digger, comprising a hanger and an axis pin, wherein the hanger is matched with a lock hook on the digging end movable arm to lock the movable arm, the axis pin is used for connecting the hanger with a revolving support of the entire digger, the hanger is hinged with the end of the axis pin, and the hanger comprises a hanger rod connected with the lock hook, two mutually parallel connecting plates vertical to the extending direction of the hanger rod, and two limiting parts at the tail parts of the two connecting plates. The invention has the beneficial effects of high limiting accuracy, high structural strength of the hanger which is not liable to deform, simple structure, light weight, safety and reliability.

Description

technical field [0001] The invention relates to a position-limiting mechanism, in particular to a hook position-limiting mechanism of a boom locking device at the digging end of an excavating loader, and belongs to the technical field of engineering machinery. Background technique [0002] When the backhoe loader is being transported or the excavation end is not working, in order to ensure safety, protect the boom cylinder, and prevent accidents caused by the sudden drop of the excavation end boom, the excavation end boom must be locked. The existing boom locking device at the digging end of the backhoe loader adopts a mechanical lock. The operator pulls the flexible shaft in the control handle in the cab, and pulls the hook hinged with the fuselage through the flexible shaft to enter or disengage from the locking hook fixed on the boom. Thus, the locking and unlocking of the locking mechanism are realized. When unlocking, the flexible shaft is pulled, and the hook rotates ...

Claims

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Application Information

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IPC IPC(8): E02F3/38E02F9/24
Inventor 刘寅查又华
Owner JIANGSU LIUGONG MACHINERY
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