A high-pressure water jet device for assisting roadheaders in rock breaking
A high-pressure water jet and roadheader technology, which is applied to mining equipment, mining equipment, tunnels, etc., can solve problems such as damage to the spraying device, huge reaction force of the nozzle, and unfavorable operators to operate the spraying, and achieve the effect of avoiding damage.
Active Publication Date: 2022-04-22
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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Problems solved by technology
[0003] When excavating a tunnel, the cutter head of the roadheader is assisted by a high-pressure water jet device to realize self-propelling, which is mainly realized by the jet recoil force of the spray gun installed on the cutter head. Huge reaction force, easy to cause damage to the injection device, and is not conducive to the operator to operate the injection
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Embodiment
[0027] Embodiment: A high-pressure water jet device for assisting a roadheader in rock breaking, which can effectively buffer the huge reaction force of the water jet to the spray gun during the spraying process.
[0028] Such as figure 1 , figure 2 Shown, comprise the workbench 1 that is placed on the roadheader frame, be provided with water tank 2 above workbench 1, be provided with spray gun 27 in the cutterhead 24 of roadheader, be provided with high-pressure water pump in water tank 2, high-pressure water pump The water outlet of the water outlet is connected to the spray gun 27 through a high-pressure rubber hose-9; the "匚" type base 18 is connected to the inner side wall of the cutter head 24 near the inner side, and the spray gun 27 is installed on the inner side wall of the base 18, and includes a housing 4, which is worn through The buffer rod 5 arranged at one end of the housing 4, and the spray head 6 arranged at the outer end of the buffer rod 5, the buffer rod ...
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The invention discloses a high-pressure water jet device for assisting a roadheader in breaking rocks, which comprises a workbench arranged on the frame of the roadheader, a water tank is arranged on the top of the workbench, a high-pressure water pump is arranged in the water tank, and the high-pressure water pump is connected with the water tank. The spray gun in the cutter head is connected; the spray gun includes a housing, a buffer rod pierced at one end of the housing, and a spray head arranged at the outer end of the buffer rod. A channel is opened in the buffer rod, and a through hole is provided at the bottom of the housing. The inner port communicates with the through hole through the second high-pressure rubber hose, and the outer port of the through hole communicates with the first high-pressure rubber hose; a spring one is provided at the bottom of the buffer rod in the inner cavity of the housing, and a water collecting chamber is arranged inside the nozzle. The water chamber is connected to the channel. During the spraying process, the water jet produces a huge reaction force on the nozzle. At this time, the spring and the buffer rod provide a buffer force, so that the buffer rod can be well buffered to avoid damage to the spraying device.
Description
technical field [0001] The invention relates to the technical field of rock-breaking devices, more specifically, it relates to a high-pressure water jet device for assisting roadheaders in rock-breaking. Background technique [0002] High-pressure water jet rock crushing refers to the technology of using fine water jets exceeding 20MPa to crush rocks. It is a rock crushing technology developed on the basis of hydraulic coal mining technology in the 1950s. Using this method to break rocks, there is no tool wear, no dust and sparks, and it is easy to achieve centralized control. It is a promising non-mechanical rock breaking method. [0003] When excavating a tunnel, the cutter head of the roadheader is assisted by a high-pressure water jet device to realize self-propelling, which is mainly realized by the jet recoil force of the spray gun installed on the cutter head. Huge reaction force can easily cause damage to the injection device, and it is not conducive to the operator...
Claims
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IPC IPC(8): E21D9/10E21F17/00
CPCE21D9/1066E21F17/00
Inventor 孙振川韩伟锋王发民王凯范文超翟乾智王利明赵海雷杨延栋王雅文杨振兴陈瑞祥高会中张合沛
Owner CHINA RAILWAY TUNNEL GROUP CO LTD