Small wet spraying machine arm support

Abstract

The invention relates to the technical field of engineering machinery, and particularly relates to a small wet spraying machine arm support. The small wet spraying machine arm support comprises a turntable, a large arm arranged on the turntable and hinged with the turntable, and a large arm pitching oil cylinder, one end of the large arm pitching oil cylinder is connected with the turntable, and the other end of the large arm pitching oil cylinder is connected with the large arm; the small wet spraying machine arm support further comprises a swing mechanism, a small arm and a rotating spray head; the swing mechanism is arranged on the large arm, and the upper part of the swing mechanism is connected with the small arm; and the small arm is connected with the rotary spray head. According tothe arm support, posture adjustment of a plurality of angles can be realized through the turntable and the swing mechanism, the swing mechanism is located at the position close to the middle of the small arm, and a turning radius is greatly reduced under the condition that the unfolding length and the lapping length are guaranteed.

Description

technical field [0001] The present invention relates to the technical field of engineering machinery, and more specifically, relates to a small wet spraying machine boom. Background technique [0002] At present, due to the small excavation section of some mine roadways, water conservancy culverts, and various underground projects, when the wet spraying machine is working, it is limited by the space of the section and the construction movement of the boom is limited. Therefore, the construction work of the wet spraying machine is greatly reduced. condition. [0003] At present, the booms of wet spraying machines are mainly divided into straight arm telescopic booms, cross-folding booms and rotary folding wet spraying booms; As a result, the basic arm is longer, and the boom requires a larger width and height; the cross-folding boom and the rotary folding wet spraying machine boom, but the cross-folding boom and the rotary folding wet spraying machine boom have a small arm p...

AI Technical Summary

Problems solved by technology

[0003] At present, the booms of wet spraying machines are mainly divided into straight arm telescopic booms, cross-folding booms and rotary folding wet spraying booms; As a result, the basic arm is longer, and the boom requires a larger width and height; the cross-folding boom and the rotary folding wet spraying machine boom, but the cross-folding boom and the rotary folding wet spraying machine boom have a small arm pitch The oil cylinder and the balance oil cylinder make the center point of transverse folding and rotation located at the end of the forearm, which increases the basic length and requires a larger width for the boom to expand

[0004] The boom of the above-mentioned prior art wet spraying machine cannot reduce the width and height of the basic boom when the total length of the boom is also satisfied. It can be multi-stage telescopic and folded with swivel, and the folding center point cannot be set at the end of the forearm

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