Limiting device of included angle between components, and crane

Abstract

The invention discloses a limiting device of an included angle between components, and a crane, and relates to the technical field of engineering machinery. The limiting device and the crane aim at solving the problems that limiting detection of an included angle between a main arm and a tower arm cannot be accurately adjusted at one time on the ground, and the measurement accuracy is not high in the prior art. The limiting device comprises a rotating wheel, a mounting wheel, a winding rope, a reset device and an angle detection device, wherein containing grooves are formed in the rotating wheel and the mounting wheel; the two ends of the winding rope are connected with the rotating wheel and the mounting wheel respectively; the rotating wheel is rotationally connected with the first component; the mounting wheel is fixed with the second component; the second component rotates towards a predetermined direction relative to the first component, and can drive the rotating wheel to rotate in the same direction; the reset device is connected with the rotating wheel, and can drive the rotating wheel to rotate reversely towards a predetermined direction; and the angle detection device sends a triggering signal when a rotating angle of the rotating wheel reaches a set upper limit and / or a set lower limit. With the adoption of the scheme, detection of the included angle between the components can be realized.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a limiting device for angles between components and a crane. Background technique [0002] The rapid development of the current economy has greatly stimulated the development of the construction machinery industry. As a high-end product in the field of construction machinery, cranes are crucial to the safety and reliability of the control system. The quality of crane protection and detection performance directly determines the safety factor of lifting operations. The jib is the core component of the crane, therefore, its protection system requires high safety protection devices to control it within the performance parameters of the lifting operation. The upper and lower angle limiting device of the main arm and the tower arm is an important unit in its protective device. [0003] As a part of the detection unit of the crane control system, the upper and lower angl...

AI Technical Summary

Problems solved by technology

[0005] One of the purposes of the present invention is to propose a device for limiting the angle between components and a crane, which solves the problem in the prior art that the detection of the angle between the main arm and the tower arm cannot be accurately adjusted in place on the ground at one time , and the problem of low measurement accuracy

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