Small-sized weight lifting device and lifting method

Abstract

The invention discloses a small-sized weight lifting device and a lifting method, and belongs to the field of mechanical equipment. The lifting device comprises a rack, an L-shaped cantilever arrangedon the rack and a hanging mechanism arranged on the L-shaped cantilever, the hanging mechanism is composed of a lifting hook, a steel wire rope, a pulley, a winding drum, a rotating shaft, a brakingpart, a tension spring, a pull wire and bearing seats, the steel wire rope penetrates through the pulley on the L-shaped cantilever, one end of the steel wire rope is connected with the lifting hook,the other end of the steel wire rope is wound around the winding drum, the rotating shaft is mounted on the L-shaped cantilever through bearing seats at the two ends of the rotating shaft, the rotating shaft is sleeved with the winding drum through a one-way bearing, the braking part is further arranged at one end of the rotating shaft, the fixed end of the tension spring is arranged on the L-shaped cantilever, the free end of the tension spring is slidably arranged on the L-shaped cantilever, one end of the pull wire is connected with the free end of the tension spring, the other end of the pull wire is wound around the winding drum, the winding directions on the winding drum of the steel wire rope and the pull wire are opposite, and the winding direction on the winding drum of the pull wire is the same as the rotation direction of the one-way bearing. The device is simple in structure, safe and convenient in use and high in universality.

Description

technical field [0001] The invention belongs to the technical field of mechanical equipment, and relates to a small-sized heavy object lifting device and a lifting method. Background technique [0002] Lifting devices are widely used. In factories and repair shops, it is often necessary to lift or lift heavy objects of various shapes or transport them for short distances. However, they are usually lifted with sled bars or manually, which has poor safety and high work intensity. It is also easy to cause damage to objects. There are also hydraulically driven scissor mechanisms for lifting, electric cylinders for direct lifting, etc., but this method requires hydraulic pumps, motors and other components, which is not only expensive, but also prone to oil leakage and unclean work sites. Contents of the invention [0003] In view of this, the object of the present invention is to provide a small-sized heavy object lifting device and lifting method with simple structure, safe a...

AI Technical Summary

Problems solved by technology

[0002] Lifting devices are widely used. In factories and repair shops, it is often necessary to lift or lift heavy objects of various shapes or transport them for short distances. However, they are usually lifted with sled bars or manually, which has poor safety and high work intensity. It is a

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