Automatic material returning device on engineering mechanical grab bucket

Abstract

In order to solve the problem that when an engineering mechanical grab bucket grabs viscous materials, the materials will be attracted to the inner wall of a shell of the grab bucket, the invention provides an automatic material returning device on the engineering mechanical grab bucket. Energy and the circular-arc radius obtained when the grab bucket stretches out are utilized, and the viscous materials attached to the inner wall of the shell of the grab bucket can be automatically scraped when the grab bucket is stretched out, and the equipment working efficiency is improved; and the device is simple in structure, convenient to use, low in production cost and convenient to use and popularize. According to the technical scheme, the two ends of front and back material returning square boxes (A) are provided with front, back, left and right scraper square boxes (B) respectively in a welded manner; the material returning square boxes (A) and the scraper square boxes (B) which are completely welded are welded with a supporting plate (7) together, welding of the material turning device is completed, and then the material returning device is welded to a stand column of the grab bucket; and the aim that the energy and the circular-arc radius obtained when the grab bucket stretches out are utilized for achieving the aim that when the grab bucket stretches out, the viscous materials attached to the inner wall of the grab bucket can be automatically scraped.

Description

technical field [0001] The invention relates to an automatic material return device on a construction machinery grab. Background technique [0002] At present, when the construction machinery grab grabs viscous materials, the materials will be adsorbed on the inner wall of the grab shell, especially at the four corners of the grab. After working for a period of time, 100 kg of viscous materials will stick to the corners at each place At present, manual and vibration methods are often used to return materials, but the effect is not good, and the materials stuck on the grab bucket cannot be completely removed. This method not only has low working efficiency, but also wastes fuel. Contents of the invention [0003] In order to overcome the above-mentioned problems in the automatic material return technology on the construction machinery grab, the present invention uses the energy and arc radius of the grab to realize the control of the scraper from the inside through the shel...

AI Technical Summary

Problems solved by technology

[0002] At present, when the construction machinery grab grabs viscous materials, the materials will be adsorbed on the inner wall of the grab shell, especially at the four corners of the grab. After working for a period of time, 100 kg of viscous materials will stick to the corners at each place At present, manual and vibration methods are often used to return materials, but the effect is not good, and the materials stuck on the grab bucket cannot be completely removed. This method not only has low working efficiency, but also wastes fuel.

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