Linear hoisting device of goose-neck jib lorry-mounted crane and control method of linear hoisting device

Abstract

The invention discloses a linear hoisting device of a goose-neck jib lorry-mounted crane. The linear hoisting device comprises an operating device, a sensor part, a processor part and an actuator part, wherein the operating device, the sensor part and the actuator part are connected with the processor part respectively. A steel wire rope of a crane with an extra hoisting mechanism easily swings under the action of wind load when the steel wire rope is lengthen, on the contrary in the prior art. By the linear hoisting device, relative positions of a hoisting load and a hoisting hook are kept basically unchanged, so that the operation process is safer and more stable. In addition, the linear hoisting device is more space-saving than the manner of adding the extra hoisting mechanism, an angle sensor, a length sensor, a controller and the like adopted by the linear hoisting device are applicable to a crane moment limiter, no extra parts are needed, and accordingly device cost is saved effectively.

Description

technical field [0001] The invention belongs to the field of cranes, and relates to a straight-line hoisting device for a crane, in particular to a straight-line hoisting device for a knuckle-arm type truck-mounted crane. Background technique [0002] The truck-mounted lifting transport vehicle has the functions of lifting and transportation at the same time. It is recognized and accepted by more and more users because of its fast, flexible, convenient and combination of loading, unloading and transportation. It is widely used in transportation, civil construction Cargo loading and unloading and long-distance transfer of goods in , electric power and other industries. According to the structure, the truck-mounted cranes can be divided into two types: straight-arm truck-mounted cranes and folding-arm truck-mounted cranes. Since the boom of the straight-arm type truck-mounted crane cannot be folded, the hoisting and lifting of the object must be completed by the hoist driving...

AI Technical Summary

Problems solved by technology

The knuckle-arm type truck-mounted crane can complete the hoisting of materials through luffing and telescopic, but it is necessary to repeatedly adjust two luffing and one telescopic action to align with the landing point during the lifting and landing process, which is inconvenient to operate and reduces the working efficiency; therefore, there are Knuckle-arm truck-mounted cranes that require straight-line hoisting generally also need to be installed with hoisting devices, but additional requirements are placed on the structure and installation space. If the steel wire rope is long, it is easy to swing due to the influence of wind load, and there are certain safety hazards

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