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A constant moment grab

A technology of constant torque and grab bucket, applied in the direction of load hanging components, transportation and packaging, etc., can solve problems such as fragile, fragile objects, and damaged objects, and achieve the effect of avoiding damage.

Active Publication Date: 2016-12-07
南通乐士机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In actual use, sometimes the objects to be grasped are fragile and fragile, and traditional grabs often cause damage to objects because it is difficult to control the grasping force

Method used

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  • A constant moment grab
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Embodiment Construction

[0016] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0017] Such as figure 1 , a constant moment grab in this embodiment includes an upper grab 1, a lower grab 2, a connecting device 3 and a transmission device 4; the upper grab 1 is located above the lower grab 2, and the upper grab 1 The first part of the head is provided with wedge-shaped protruding claws 11a, which are arranged at equal intervals on the edge of the head of the upper grab bucket 1; the shape of the lower grab bucket 2 is the same as that of the upper grab bucket 1, and the head of the lower grab bucket 2 The protruding claws 11b on the edge and the protruding claws 11a on the head of the upper grab bucket 1 are alternately distributed.

[0018] Such as figure 1 , figure 2 , the connecting device 3 includes a bottom plate 31...

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PUM

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Abstract

The invention relates to the field of grab buckets, in particular to a fixed-torque grab bucket. The fixed-torque grab bucket comprises an upper grab bucket body, a lower grab bucket body, a connecting device and a transmission device. Threaded holes are formed in the connecting device. The transmission device comprises a hydraulic motor, a torque limiting device, a driving wheel, a first transmission gear and a second transmission gear. The torque limiting device comprises an inner wheel, a shell and a force limiter. A cavity structure is formed in the shell. A through hole is formed in the top of the shell. A semicircular groove is formed in the side face of the inner wheel. The force limiter comprises a spring and convex blocks. The spring penetrates the through hole in the top of the shell. The upper end of the spring abuts against the shell. The spring is used for providing downward force for the convex blocks. The bottom faces of the convex blocks are located in the groove. The tops of the convex blocks are connected with the spring. The convex blocks can provide torque for the inner wheel when in the groove. The fixed-torque grab bucket can keep grabbing force unchanged when the grabbing force reaches a certain degree, and damage to an object caused when grabbing force is too large is effectively avoided.

Description

technical field [0001] The invention relates to the field of grab buckets, in particular to a constant moment grab bucket. Background technique [0002] The grab bucket is a bucket that can be opened and closed by grabbing sand, gravel and various bulk goods. It is a spreader that mainly relies on the opening and closing of two combined buckets on the left and right or multiple jaw plates to grab and discharge bulk materials. , There are also grabs for grabbing and loading and unloading logs, pipes, straws and other objects of various specifications. According to the shape classification, grabs can be divided into shell-shaped grabs and orange-shaped grabs. The former is composed of two complete buckets. , the latter is composed of three or more jaw plates; according to the driving mode, it can be divided into two categories: hydraulic grab and mechanical grab. [0003] In actual use, sometimes the objects to be grasped are fragile and fragile, and traditional grabs often c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C3/02B66C3/16
CPCB66C3/02B66C3/16
Inventor 朱能为许绪留
Owner 南通乐士机械有限公司