Limiting device for lorry-mounted crane and control system

Abstract

The invention discloses a limiting device for a lorry-mounted crane and a control system and belongs to the technical field of lorry-mounted cranes. The limiting device comprises a limiting mechanismmain body, a lorry-mounted crane rotating support disc and a suspension arm, the limiting mechanism main body mainly comprises a support plate and a U-shaped mounting seat, a fixing plate is welded onthe support plate, a threaded hole a is formed in the fixing plate, and the inner side wall of the threaded hole a is in threaded connection with a bolt; the screw rod is driven to rotate under the meshing action of a bevel gear a and a bevel gear b, the movable plate is driven to move up and down and the sliding rod drives the top plate to move up and down, so the height position adjustment of the top plate is realized; meanwhile, when a suspension arm touches a touch sensor in the rotating operation, the touch sensor sends a signal to a single-chip microcomputer, then the single-chip microcomputer controls an alarm lamp and a buzzer to be started to give an audible and visual alarm to remind an operator, and therefore the height rotating angle of the suspension arm can be limited, the structure is simple, and use is convenient.

Description

technical field [0001] The invention belongs to the technical field of truck-mounted cranes, and in particular relates to a limit device and a control system for truck-mounted cranes. Background technique [0002] The truck-mounted crane refers to the kind of truck with lifting equipment, because the crane is commonly known as the crane, and this kind of crane is installed on the truck, so it is called the truck-mounted crane, because this kind of truck can realize self-loading and self-unloading, so it is also called a truck-mounted crane. It is called a self-unloading crane. The car crane refers to the production of Zoomlion Zhongke or XCMG. It is also a crane in our ordinary sense. It has a large tonnage and can only be used for hoisting because its lifting system is installed on the car. , so it is called a truck crane, and its scientific name is a truck crane. [0003] The existing truck-mounted crane arm lacks the necessary limit device during the working process, whi...

AI Technical Summary

Problems solved by technology

[0003] The existing truck-mounted crane arm lacks the necessary limit device during the working process, which makes it easy to touch when working in the area with height and rotation angle restrictions, which affects the normal operation of the truck-mounted crane, and the function is not perfect , there is some inconvenience in using

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