Underground support-type hydraulic hoisting apparatus for coal mine

Abstract

The invention discloses an underground support-type hydraulic hoisting apparatus for a coal mine. The underground support-type hydraulic hoisting apparatus comprises supporting frames (1) and a hydraulic suspension arm (2) arranged on the supporting frames (1), wherein the upper ends of the supporting frames (1) are provided with a top supporting part (3) forming plane support or linear support with a tunnel roof of the mine, and the top supporting part (3) is connected with the supporting frames (1) in a height adjustable manner; and one end of the hydraulic suspension arm (2) is arranged onthe top supporting part (3), and the height of the hydraulic suspension arm (2) is smaller than the height of the top supporting part (3) in the vertical direction. When the tunnel roof has cracking or unsmooth problem, the supporting force between the supporting part and the tunnel roof is not influenced, the supporting frames and the top supporting part can support a tunnel or a working plane space in a hoisting range, and the safety of the hoisting space can be ensured; and since the supporting stability of the supporting frames can provide stable support to the hydraulic suspension arm, the hoisting performance of the hydraulic suspension arm can be ensured.

Description

technical field [0001] The invention relates to the technical field of mine underground operations, in particular to a support type hydraulic lifting device for underground coal mines. Background technique [0002] Mine underground mining is to excavate a series of shafts from the ground to the ground. The entire production process is performed underground, and various operating equipment needs to be transported to the underground tunnel for installation and use. Due to the size of the mine roadway and the requirements of the working environment, most of the lifting, transportation, installation and other equipment commonly used in ground construction cannot be used in the mine underground roadway. Common tools for workers in the roadway are simple crowbars, single hydraulic props and chain hoists, etc. When hoisting larger equipment, using these simple tools is time-consuming and laborious. [0003] Existing hydraulic cranes all belong to a hydraulic crane used in roadways...

AI Technical Summary

Problems solved by technology

Due to the size of the mine roadway and the requirements of the working environment, most of the lifting, transportation, installation and other equipment commonly used in ground construction cannot be used in the mine underground roadway

Common tools for workers in the roadway are simple crowbars, single hydraulic props and chain hoists, etc. When hoisting larger equipment, using these simple tools is time-consuming and laborious

[0003] Existing hydraulic cranes all belong to a hydraulic crane used in roadways. For example, Chinese patent document CN102659036A discloses a hydraulic crane used for coal mine underground loading and unloading equipment and materials. When hoisting, it is necessary to use the top of the hydraulic prop to support the roadway roof , in order to realize the function of stabilizing the hydraulic crane and balancing the gravity. Since the hydraulic prop support is a local point support, there is a single point of force on the roof of the roadway, which is easy to cause damage to the roof of the roadway; at the same time, when the hydraulic prop supports the roof. When it is relatively broken, there may be a problem of insufficient support force of the hydraulic prop, which will cause the instability of the hydraulic crane and increase the risk factor of lifting sharply.

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