Single-cylinder-driven mechanical grab bucket and operation machine

A driving machine and single-cylinder technology, which is applied to mechanically driven excavators/dredgers, earth movers/shovels, construction, etc., can solve the problem of poor overall structural stability of the grab, complex force of the grab, and the problem of grabbing Problems such as position deviation, to achieve the effect of optimal gripping force, consistent opening angle, and reduced stroke

Active Publication Date: 2021-06-29
SANY HEAVY MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a single-cylinder driven mechanical grab, which is used to solve the deflection force generated by each claw petal of the grab in the prior art during the opening and closing process, resulting in insufficient grab force, shifted grab position, and caused The overall force of the bucket is complex, which makes the overall structure of the grab less stable

Method used

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  • Single-cylinder-driven mechanical grab bucket and operation machine
  • Single-cylinder-driven mechanical grab bucket and operation machine
  • Single-cylinder-driven mechanical grab bucket and operation machine

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Embodiment Construction

[0043] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention , but not all examples. 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.

[0044] Combine below Figure 1 to Figure 3 The single-cylinder-driven mechanical grab of the present invention (which may be simply referred to as "grab" in the embodiments of the present invention) is described.

[0045] Such as figure 1 As shown, the grab bucket includes a claw assembly for grasping action, a drive cylinder 6 for driving action, and a limit mechanism for limiting and cent...

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Abstract

The invention provides a single-cylinder-driven mechanical grab bucket and an operation machine. The grab bucket comprises a plurality of claw bodies which are connected to the same driving cylinder and evenly arranged in the circumferential direction of the driving cylinder, and the driving cylinder can drive the claw bodies to be synchronously opened or closed through telescopic motion; and limiting mechanisms connected between the driving cylinder and the claw bodies. According to the grab bucket, the claw bodies can synchronously rotate relative to the axial extension line of the driving cylinder in the opening or closing process through the limiting mechanisms, and the opening angles and the closing angles of the claw bodies are synchronously limited, so that it is guaranteed that the driving cylinder can control the claw bodies to be opened and closed synchronously in the stretching and retracting process. In addition, the axial extension line of the driving cylinder is used as the center line of the claw bodies in the opening and closing process, so that each claw body is prevented from deflecting in the opening and closing process, the accurate grabbing position of the grab bucket is ensured, the grabbing force is optimized, the overall stress of the grab bucket is simplified, and the structural stability of the grab bucket is improved.

Description

technical field [0001] The invention relates to the technical field of working machinery, in particular to a single-cylinder driven mechanical grab and working machinery. Background technique [0002] A grab bucket is a special tool connected to a working machine that can grab dry bulk cargo. The traditional grab is usually hung from the end of the boom or arm of the working machine, and the opening and closing of the grab uses multiple oil cylinders to work simultaneously to control the simultaneous opening and closing of multiple claws. However, there are at least two disadvantages in this control mechanism. One is that the hanging gripper swings with the movement of the hanging platform, and it is difficult to accurately grasp when the grab is grabbing, which reduces work efficiency; the other is that multiple oil cylinders work at the same time. It is difficult for the claws of the bucket to work synchronously, and the force of each cylinder is different when grabbing i...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): E02F3/413E02F3/43
CPCE02F3/413E02F3/4136E02F3/43
Inventor左欧阳刘健王全
OwnerSANY HEAVY MACHINERY