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Tunnel boring machine hob rock breaking mechanism test bed hydraulic system

A technology of tunnel boring machine and hydraulic system, which is applied in the safety of fluid pressure actuation system, the testing of fluid pressure actuation system components and mechanical parts, etc., to achieve the effects of stable work, easy recycling and control of pollution degree.

Pending Publication Date: 2022-02-15
CHINA RAILWAY TUNNEL GROUP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, most of the platforms are scaled-scale hob rock-breaking test benches, or rock-breaking research can only be carried out with a single hob, which is far from the real rock-breaking of tunnel excavation.

Method used

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  • Tunnel boring machine hob rock breaking mechanism test bed hydraulic system
  • Tunnel boring machine hob rock breaking mechanism test bed hydraulic system
  • Tunnel boring machine hob rock breaking mechanism test bed hydraulic system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0031] Embodiment: A hydraulic system of a tunnel boring machine hob rock-breaking mechanism test bench, which connects various control valves through hydraulic pipelines, controls four hydraulic motors, four sets of main thrust cylinders, and four sets of cutter spacing adjustment cylinders to realize the system Work.

[0032] figure 1 , figure 2 , image 3 and Figure 4 , including an oil drain ball valve 1, an air filter 2 and a liquid level thermometer 3 installed at the bottom of the hydraulic oil tank 01 through a direct threaded joint. The oil tank 01 is connected with a thrust system, a cutter head system, and a knife spacing adjustment system. The thrust system Including the high-pressure plunger pump-4 connected to the oil tank 01 through the hydraulic pipeline, the high-pressure plunger pump-4 is connected with the safety overflow control unit 1 through the hydraulic pipeline, and the safety overflow control unit 1 is connected with the thrust through the hydrau...

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PUM

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Abstract

The invention discloses a tunnel boring machine hob rock breaking mechanism test bed hydraulic system which comprises an oil drainage ball valve, an air filter and a liquid level and liquid temperature meter which are mounted at the bottom of a hydraulic oil tank through a direct screwed joint, and the interior of the oil tank is communicated with a thrust system, a cutterhead system and a cutter distance adjusting system; and a whole oil way system is provided with a power element, a control element and an execution element accessory, so that the elements form a hydraulic station to output power for a hydraulic system, various control valves are connected through hydraulic pipelines, and four hydraulic motors, four sets of main thrust oil cylinders and four sets of cutter distance adjusting oil cylinders are controlled to achieve system work.

Description

technical field [0001] The invention relates to the technical field of excavation equipment, more specifically, it relates to a hydraulic system of a rock-breaking mechanism test bench for a hob of a tunnel boring machine. Background technique [0002] Due to its high excavation efficiency and safe application, tunnel boring machines are increasingly used in the construction of tunnel projects in various industries such as railways, highways, subways, water conservancy, electric power, and urban construction. However, due to the vast territory of our country and the complex and changeable location environment, there are soft silt strata in East China, loess strata in North China, complex and changeable rock strata in South China, and pebble strata in Southwest and Northwest China. higher demands on sex. For example, due to the harsh geological environment and poor geological adaptability of tunnel excavation in the Xueshan Tunnel in Taiwan, China, there were 63 rock avalanc...

Claims

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Application Information

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IPC IPC(8): F15B11/17F15B11/16F15B13/02F15B20/00F15B21/041G01M13/00G01N3/02G01N3/58
CPCF15B11/17F15B11/161F15B13/02F15B13/027F15B20/00F15B21/041G01M13/00G01N3/02G01N3/58F15B2211/20515F15B2211/20576F15B2211/31594G01N2203/0048Y02P70/10
Inventor 韩伟锋任颖莹陈瑞祥李凤远曾垂刚张兵高会中王凯
Owner CHINA RAILWAY TUNNEL GROUP CO LTD
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