Chain hydraulic hoist for lifting

Abstract

The invention discloses a chain-type hydraulic hoist for lifting, which comprises a lifting hook, a hydraulic drive control part, a lifting part, a planetary reducer and a high-strength lifting chain; the hydraulic drive control part comprises a valve block, a hydraulic motor, a non-brake oil tube and a hydraulic brake; the lifting part comprises an end cover, a housing, a driving chain wheel, a locating bearing and a primary drive gear; the planetary reducer comprises a sun wheel shaft, a planetary gear, a planetary gear shaft, a planetary gear rack, a primary gear ring, a fixed gear, a secondary gear ring and a planetary reducer shell; the hydraulic hoist provides a control oil tube by a matched hydraulic system on mining machinery, and drives the planetary reducer by the hydraulic motor; the planetary reducer outputs a torque to drive a lifting driving chain wheel, and drives an annular lifting chain and a lifting hook device to lift and put down heavy objects, and also can be used for horizontally dragging the heavy objects (namely used as a hydraulic winch). The chain-type hydraulic hoist is suitable for downhole operation of coal mine, and has the advantages of being reasonable in structure, large in lifting ratio in equal volume, simple and convenient to operate, high in work efficiency, safe and reliable.

Description

(1) Technical field [0001] The invention belongs to the technical field of lifting equipment, and specifically relates to a chain type hydraulic hoist for lifting which is matched with mining machinery and used in coal mines. (2) Background technology [0002] Hoist is an important part of lifting equipment. The existing hoists include chain hoists, electric hoists, pneumatic hoists and hydraulic hoists. However, the use of chain hoists is of high manual labor intensity and low work efficiency; electric hoists must be used in underground mines due to explosion-proof measures, which make their structure complex and large; pneumatic hoists cannot be used underground due to gas source conditions. Use, and its rated load is small; the traditional hydraulic hoist is driven by an emulsion motor, and the rated load is small; due to their own limitations, these types of hoists cannot be used well on mining machinery and equipment. At present, the lifting equipment and small traction equ...

AI Technical Summary

Problems solved by technology

The winch uses the steel wire rope to coil on the drum to realize the traction and lifting functions. Due to the specific working environment of mines and underground mines, the wire rope is very easy to fluff and broken and damaged. At the same time, due to the limitation of the lifting principle and structure, its overall size is relatively Large, so it is not convenient to place on the supporting host

However, the characteristics of the chain hoist cannot meet the purpose of efficient and fast operation.

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