Hydraulic silent directional rock breaking device

Abstract

The invention belongs to the field of mine and road construction, and particularly relates to a hydraulic silent directional rock breaking device. The device comprises a truck, filters, a diesel engine, a high-pressure pump, a limiting block, a compression nut, special wedge-shaped sealing blocks, an upper pull rod, a pressure-bearing tube, a flow guide pipe, a rubber plug, spacer bushes, an upperpiston, a lower piston, wedge-shaped bodies, cutting ferrules and the like. By means of hydraulic pressurization of the high-pressure pump and a special hole sealing structure, silent directional large-area rock breaking is achieved, the problems of vibration, flying rock, dust, noise and the like in the construction process are avoided, and the device is applicable to hard and brittle rock withvarious strengths and various hole sizes and is also applicable to porous rock or rock with certain elasticity. The rock breaking direction is controllable, the rock breaking efficiency is effectivelyimproved, and the construction cost is reduced.

Description

technical field [0001] The invention relates to a hydraulic silent directional crushing device for rock mass, which belongs to the field of mine and road construction. Background technique [0002] In the process of mining and tunnel construction, it is necessary to break the rock mass. The common method is to use explosive blasting. During the construction process, explosive blasting has safety and environmental protection problems such as vibration, flying stones, dust, noise, etc., and explosive blasting cannot control the rock mass. The direction of body fragmentation. As people pay more and more attention to safety and environmental protection issues, and when it is necessary to control the cracking direction of rock mass under special circumstances, the limitations of explosive blasting technology become more prominent, so the application of explosive blasting technology in rock mass crushing construction is subject to certain restrictions. [0003] Silent blasting te...

AI Technical Summary

Problems solved by technology

At present, the commonly used silent blasting technology adopts the method of injecting expansion agent. First, drill holes on the rock mass with a drilling machine, and then inject expansion agent in the hole. Limitations. First, a large amount of expansion agent is required, which is costly. There are still problems in handling the used up expansion agent. Secondly, because the expansion agent is used to expand the rock, the deformation of the expansion agent is limited. If there are large pores or rock mass elasticity Larger (or softer) often does not achieve the expected expansion effect, and the reaction of the expansion agent takes a certain amount of time (more than a few hours), and the overall efficiency is still lacking

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