Electro-hydraulic control hydrostatic leveling double-cylinder lifting hanging basket type anchor protection large arm

Abstract

The invention belongs to the technical field of equipment of two-arm anchor cable and anchor rod drill carriages, and particularly relates to an electro-hydraulic control hydrostatic leveling double-cylinder lifting hanging basket type anchor protection large arm. According to the anchor protection large arm, a large arm hinge seat is connected with the rear side of a vertical lifting platform through screws, a sleeve hinge seat is installed on the upper portion of the large arm hinge seat and hinged to a large arm outer sleeve, a rear leveling oil cylinder, an outer side lifting oil cylinderand an inner side lifting oil cylinder are arranged below the large arm outer sleeve, one end of the rear leveling oil cylinder is installed on a leveling oil swing seat, the other end of the rear leveling oil cylinder is hinged to the middle of the lower side of the large arm outer sleeve, the other end of the outer side lifting oil cylinder and the other end of the inner side lifting oil cylinder are hinged to the lower side of the front end of the large arm outer sleeve, a large arm inner sleeve is embedded in the large arm outer sleeve, the extending end of the large arm inner sleeve is sequentially connected with a telescopic drilling frame compensation sleeve, a hanging basket adjusting sleeve hinge seat and a hanging basket adjusting sleeve, and a drilling frame is installed on thefront end hinge seat.

Description

technical field [0001] The invention belongs to the equipment technical field of a two-arm cable-bolt drilling rig, and in particular relates to an electro-hydraulic control hydrostatic leveling double-cylinder lifting basket type anchor protection boom. Background technique [0002] At present, the conditions of the roof and side walls are poor during the roadway excavation of most coal mines in China. The empty roof distance is generally not more than 3 meters, and most of them are 1-2 meters. For excavation, bolt and cable support work is carried out manually, the labor intensity is relatively high, the working conditions are relatively harsh, the efficiency is low, and the risk factor is high. Some coal mines use a self-moving fully hydraulic two-arm rock bolter. This equipment is flexible and maneuverable. It can enter the empty roof area from the roadheader or continuous miner to carry out anchor protection operations. It improves the working efficiency, basically mee...

AI Technical Summary

Problems solved by technology

[0003] There are some problems in the existing anchor booms: 1) The degree of freedom is small and the function of bottoming out is not available. It is impossible to realize the functions of drilling and installation of the bottom side anchor, and the bottom anchor needs to be completed manually. support, labor-intensive

2) There is no foldable station platform, and personnel cannot complete the entire anchoring and protection process, especially in some extreme cases, such as the boom is lifted too high or the outward swing angle is too large, and personnel cannot perform anchoring and protection operations

3) The leveling accuracy is low. The traditional hydrostatic leveling mechanism has problems such as hydraulic oil leakage, and the leveling accuracy is low.

4) The operation of the system is complicated. The boom lifting cylinder and the swing cylinder are operated by two independent operating valves, which is complicated and inefficient

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