Engineering machine and outer-hooping and inner-expanding type winding mechanism thereof

Abstract

The invention discloses an outer-hooping and inner-expanding type winding mechanism, comprising a retarder (2), a roller (3) and an expanding wheel (4), wherein the expanding wheel (4) drives the roller (3) to rotate; the retarder (2) is a planetary retarder and is arranged inside the roller (3), the retarder (2) and the roller (3) can be rotatably connected, and a rotating shaft is an axial center line of the roller (3); and an output shaft (21) of the retarder (2) is connected with the expanding wheel (4). Compared with the prior art, the outer-hooping and inner-expanding type winding mechanism omits a gearbox and a reversing shaft, and because the retarder (2) is arranged inside the roller (3) and the retarder (2) and the roller (3) can be rotatably connected, the outer-hooping and inner-expanding type winding mechanism has the advantages of compact structure and space saving. The invention also provides an engineering machine, comprising a machine body and the outer-hooping and inner-expanding type winding mechanism which is connected to the machine body. The engineering machine has the same advantages with the outer-hooping and inner-expanding type winding mechanism.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to an outer-hugging and inner-expanding winch mechanism for engineering machinery. The present invention also relates to a construction machine comprising the above-mentioned outer-hugging and inner-expanding hoisting mechanism. Background technique [0002] The dynamic compaction machine is a device used for compacting loose soil in construction projects. Its main principle is to use lifting equipment to repeatedly lift the weight to a high place, then automatically unhook to release the load, and finally the empty hook is lowered. Its kinetic energy is Strong shock waves and high stresses in the soil increase the strength and reduce the compressibility of the foundation. [0003] The hoisting mechanism is an important part of the dynamic compaction machine, and the hoisting mechanism with outer embrace and inner expansion is a hoisting mechanism with reliable perfor...

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Problems solved by technology

[0006] However, in this structure, the motor 1', the reducer 2', the drum 3' and the expansion wheel 4' are arranged in sequence, and the reducer 2' is decelerated by a planetary reducer, and then decelerated by a gearbox. The output shaft 21 of the gearbox ' is a long axis, the output shaft 21' extends into the inside of the drum 3', and passes through the drum 3' in the axial direction, and is connected with the expansion wheel 4', which makes the structure of this type of hoisting mechanism with external embrace and internal expansion complex, The mechanical efficiency is low, and it takes up a lot of space, and has the disadvantage of unreasonable location layout

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