Lifting appliance capable of eliminating levelness deviation and being resistant to swing

Abstract

The invention belongs to the technical field of lifting, and in particular relates to a lifting appliance capable of eliminating levelness deviation and being resistant to swing. The lifting appliancecapable of eliminating levelness deviation and being resistant to swing comprises an actuating mechanism and a control system, wherein the actuating mechanism comprises an upper lifting lug, an upperconnecting piece, a lifting lug nut, an intermediate pull rod, an actuating hydraulic cylinder, a lower connecting piece, a lower connecting shaft, a counterweight, a pin-penetrating device, a counterweight box, a lower connecting plate, a lower connecting cross plate and an electric control box fixing base; the control system comprises a motor, an electric control box, a X-direction oil inlet pipe, a Y-direction oil inlet pipe, a X-direction oil outlet pipe, a Y-direction oil outlet pipe, an input potentiometer, a subtractor, a power amplifier module, a force motor, a regulating hydraulic valve, an overflow valve, a small flow hydraulic pump, a back pressure valve, a pressure retaining valve, a reversing valve, a control hydraulic cylinder and an output potentiometer. According to the lifting appliance capable of eliminating levelness deviation and being resistant to swing, the levelness deviation of lifting objects can be actively adjusted, the levelness deviation of the lifting objects is eliminated, and the problem of the swing of the lifting objects in the vertical direction can be effectively solved.

Description

technical field [0001] The invention belongs to the technical field of hoisting, and in particular relates to a hoist that can eliminate level deviation and resist swinging. Background technique [0002] In equipment assembly or maintenance, construction of buildings, etc., it is often necessary to use cranes and other equipment to lift large and heavy parts. [0003] During the hoisting process, the hoisting object often tilts under the joint action of wire rope strain, dynamic / fixed pulley friction and other factors, resulting in the need for multiple manual inspections and repeated hoisting, resulting in the risk of personal injury and the reduction of work efficiency. In severe cases, hoisting accidents such as falling of hoisting objects and casualties may even occur. [0004] When crane manufacturers provide cranes and other equipment, they do not provide spreaders that can reduce or eliminate the level deviation of the hoisting objects. During the hoisting process, s...

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Problems solved by technology

[0003] During the hoisting process, the hoisting object often tilts under the joint action of wire rope strain, dynamic / fixed pulley friction and other factors, resulting in the need for multiple manual inspections and repeated hoisting, resulting in the risk of personal injury and the reduction of work efficiency. In severe cases, lifting accidents such as falling of the hoisting objects and casualties may even occur.

[0004] When crane manufacturers provide cranes and other equipment, they do not provide spreaders that can reduce or eliminate the level deviation of the hoisting objects. During the hoisting process, some spreaders with special mechanical mechanisms are generally used to reduce the levelness of the hoisting objects during the hoisting process. deviation, but this type of spreader can only passively reduce the level deviation of the hoisted object, the reduction of the level deviation is limited, and it does not have the anti-swing function

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