Grab bucket with overload protection function

Abstract

The invention belongs to the technical field of grab bucket machines, and particularly relates to a grab bucket with an overload protection function. The grab bucket comprises an upper bearing beam, the two sides of the upper bearing beam are rotatably connected with a pull frame, the pull frame is rotatably connected with one end of a bucket body, the bottom of the upper bearing beam is providedwith an upper pulley, the upper pulley is connected with a lower pulley through multiple rings of steel wire ropes which are coiled, the lower pulley is arranged on a lower bearing beam, the lower bearing beam is rotatably connected with the other end of the bucket body through a rotating shaft, a loading limit plate is arranged in the bucket body, according to the grab bucket with the overload protection function, the loading limit plate is welded in the bucket body of the grab bucket, the condition that due to bucket stamping descending, a hopper grabs materials too much, and equipment over-load lifting happens can be avoided effectively, during bucket closing, remaining materials slide along the outer wall of the loading limit plate, and are always kept at the reasonable lifting amount,and the overload tripping operation can be avoided.

Description

technical field [0001] The invention relates to a grab bucket with an overload protection function, which belongs to the technical field of grab bucket machinery. Background technique [0002] The grab bucket refers to the special tool for the crane to grab dry bulk cargo, and it is a bucket that can be opened and closed for grabbing sediment and various bulk cargo. The storage space is composed of two or more bucket-shaped jaws that can be opened and closed. When loading, the jaws are closed in the material pile, and the materials are grabbed into the storage space. When unloading, the jaws are in the pile. When it is opened in the suspended state, the material is scattered on the pile, and the opening and closing of the jaw plate is generally controlled by the steel wire rope of the hoisting mechanism of the crane. There is no heavy manual labor in the grab operation, which can achieve high loading and unloading efficiency and ensure safety. It is the main dry bulk cargo ...

AI Technical Summary

Problems solved by technology

However, the loading of the existing grab bucket cannot be controlled, and the punching pressure of the hopper is lowered, which often causes the hopper to grab too much material, resulting in the occurrence of equipment overload and hoisting, resulting in damage to the equipment

In addition, when the existing grab is empty, the two buckets are prone to "tooth hitting" collision when they are closed. After a period of use, the head is severely worn and needs to be shut down for maintenance, which is time-consuming and laborious, affecting normal production.

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