Mechanical arm overturning and clamping mechanism of construction machinery

Abstract

The invention provides a mechanical arm overturning and clamping mechanism of construction machinery, and belongs to the technical field of machining equipment. The problem that due to the lack of aneffective distance adjusting mechanism between two lifting mechanisms in the clamping mechanism, two rotary clamping mechanisms cannot be flexibly adjusted according to mechanical arms with differentlengths, and then the practicability of the clamping mechanism is reduced needs to be solved, so that the mechanical arm overturning and clamping mechanism comprises a rack, wherein two left square bracket-shaped sliding rails are arranged on the upper end face of the rack in a front-back symmetrical mode, and a distance adjusting mechanism is arranged on the upper portion of the rack. When the distance between the two lifting mechanisms is adjusted, a rotating shaft of an adjustment motor drives a distance adjusting screw rod to rotate, so that two moving plates drive the two lifting mechanisms, two angle adjusting mechanisms and the two rotary clamping mechanisms to move close to or away from each other under the action of two left-hand threads, then the two rotary clamping mechanisms can be flexibly adjusted according to the mechanical arms with different lengths, and the practicability of the clamping mechanism is improved.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing equipment, and more specifically relates to a turning and clamping mechanism of a mechanical arm of a construction machine. Background technique [0002] Construction machinery is the general term for machinery and equipment used in engineering construction and urban and rural construction. It is also called "construction machinery" and "construction machinery" in China. Construction machinery, road machinery, concrete machinery, concrete product machinery, steel grade prestressed machinery, decoration machinery, aerial work machinery and other machinery. [0003] For example, application number: CN202010193815.1 The present invention discloses a mechanical arm turning and clamping mechanism for large-scale construction machinery, including a stand, and lifting mechanisms are fixed on the left and right parts of the top surface of the top plate of the stand. The lifting block of the...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides a mechanical arm flip clamping mechanism of construction machinery to solve the following shortcomings in the actual use of the above-mentioned clamping mechanism, such as: 1. Due to the two There is no effective distance adjustment mechanism between the two lifting mechanisms, so that the two rotating clamping mechanisms cannot be flexibly adjusted according to the mechanical arms of different lengths, thereby reducing the practicability of the clamping mechanism; When turning over, because it is directly driven by the rotating main motor, the stability of the mechanical arm is poor when turning over, and due to the lack of an effective locking structure after turning over, once a power failure occurs, it will bring safety hazards, and then Reduced the safety of the clamping mechanism; 3. After the above-mentioned wear-resistant sleeve is severely worn, it is not easy to be discovered by people in time, and the stability of the placement plate will be reduced after continued wear and tear.

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