A mobile tension-shear stress rock breaking equipment system

Abstract

The invention discloses a mobile tension-shear stress rock breaking equipment system. The hydraulic power mechanism includes a movable power car (9), a hydraulic oil tank (11) assembled on the power car (9), and a hydraulic oil tank (11). It is equipped with a driving motor (10), a pressure gauge (12), and a controller (13) for controlling the oil delivery of the hydraulic oil tank (11); Plate (4), cross bar (5), pull rod (6), anchor rod (8); one end of oil delivery pipeline (14) and oil return pipeline (15) respectively connects with the oil inlet of hydraulic jack (1) , the oil return port, and the other end is connected with the oil outlet valve and the oil return valve of the hydraulic oil tank (11) respectively. The present invention makes full use of the characteristics of the rock mass to resist compression but not tension and shear, realize the static environmental protection mechanical rock breaking of "only drilling without blasting", avoid excessive crushing of rock blocks and a high large block rate, and meet the rock block degree of engineering projects The need to improve the efficiency of mechanized shoveling and transportation, and reduce the cost of shoveling operations.

Description

technical field [0001] The invention belongs to the technical field of mechanical rock breaking, and in particular relates to a mobile tension-shear stress rock breaking equipment system, which can be widely used in fields such as mines, tunnels, traffic roads, slopes, and foundation pit excavation. Background technique [0002] At present, explosive blasting is still the most important rock mass crushing method. However, the rock mass in the crushing area is too broken under the blasting rock crushing method, and large pieces are easy to be produced in the crack area, resulting in a low energy utilization rate of explosives, which is generally about 20%; and a large number of After the explosion energy is released, secondary disasters such as severe blasting vibration and noise are caused, and a large amount of blasting dust and CO, NO, NO 2 , NH 3 , SO 2 Blasting toxic and harmful gases, polluting the production environment and the atmospheric environment, seriously enda...

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Problems solved by technology

[0005] In order to overcome the many disadvantages of rock breaking by explosive blasting, reduce the energy consumption of rock breaking by blasting, improve the utilization rate of rock breaking energy, create an excellent production and operating environment, and completely solve the blasting vibration, blasting dust and toxic and harmful gases induced by blasting rock breaking The present invention proposes a mobile tensile-shear stress rock-breaking equipment system. This equipment system makes full use of the rock mass’s characteristics of compressive resistance but not tensile-shear resistance. When the tensile stress and shear stress of the rock mass exceed its resistance When the tensile strength and shear strength are high, the rock mass can be broken into certain pieces, and the smaller tensile and shear stress can be used to achieve the purpose of breaking the rock mass, forming a new method of static environmental protection mechanical rock breaking

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