Box variable volume structure grab

Abstract

The invention relates to a grab bucket with a variable volume structure of a box body, which includes two bucket bodies arranged symmetrically on the left and right and an opening and closing drive mechanism. It is characterized in that: the bucket body includes a bucket bottom plate and a bucket side plate, the bucket bottom plate extends straight from the cutting edge of the bucket bottom to the rear part, and the rear part of the bucket body is transparent; the lower end of the bucket body rear part is provided with An installation frame is provided with a movable and detachable variable volume box body on the installation frame. The present invention has a simple, compact and reasonable structure. By setting a detachable variable volume box on the bucket body, the large-span variable capacity of the grab can be realized, and it can be used to grab materials with widely different specific gravity such as ore and coal, which improves the Work efficiency, reduce equipment cost.

Description

technical field [0001] The invention relates to a grab bucket with variable volume structure of a box, belonging to the technical field of lifting and unloading equipment. Background technique [0002] Double flap grabs are mainly used in cargo terminals, port machinery plants, power plants, shipyards, steel mills and other industries to grab various bulk cargo. If the grab bucket does not have a variable bucket capacity structure, it cannot be used universally among materials with different specific gravity when grabbing materials. For example, when grabbing small specific gravity materials with a grab bucket that grabs large specific gravity materials such as ore, the efficiency is very low, and when grabbing large specific gravity materials with a grab bucket that grabs small specific gravity materials such as coal, it will be seriously overloaded. [0003] The existing ordinary variable capacity grab structure is to cut off a section at the end of the original grab bott...

AI Technical Summary

Problems solved by technology

If the grab bucket does not have a variable bucket capacity structure, it cannot be used universally among materials with different specific gravity when grabbing materials

For example, when grabbing small specific gravity materials with a grab bucket that grabs ore and other large specific gravity materials, the efficiency is very low, and when using a grab bucket that grabs small specific gravity materials such as coal to grab large specific gravity materials, it will be seriously overloaded.

[0003] The existing ordinary variable capacity grab structure is to cut off a section at the end of the original grab bottom plate, and then add a detachable plate to achieve the effect of variable capacity. Such a variable capacity structure has a very small span and can only To achieve the purpose of variable volume between materials with similar specific gravity, it cannot be used to grab coal, ore and other materials with widely different specific gravity at the same time, otherwise it will cause serious overload or low efficiency

Coal scuttle and ore need two types of grab buckets to grab separately, which increases the cost

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