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Crawler type all-hydraulic tunnel drilling rig hydraulic system for coal mine

A technology of tunnel drilling rig and hydraulic system, which is applied in drilling equipment, earthwork drilling, mechanical equipment, etc., can solve the problems of low control precision, troublesome system control, low reliability, etc., and achieves high control precision, convenient operation and convenient control. Effect

Inactive Publication Date: 2008-07-09
煤炭科学研究总院有限公司西安研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the relocation of fully hydraulic tunnel drilling rigs mainly relies on manual transportation or short-distance movement of walking mechanisms, and the speed and torque are controlled by manual variable methods, which have problems such as simple functions, low control accuracy, and low hydraulic system efficiency.
[0003] The existing crawler-type fully hydraulic tunnel drilling rigs need to install multiple hydraulic control valves or add reversing valves in the hydraulic system in order to solve the problems of quickly lifting and unloading the drilling tools and protecting the drilling tool threads when unscrewing and unscrewing the drilling tools. Complexity, low reliability, troublesome system operation and low control precision

Method used

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  • Crawler type all-hydraulic tunnel drilling rig hydraulic system for coal mine

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Embodiment Construction

[0018] Referring to Fig. 1, the present invention applies the hydraulic control reversing valve and the remote control technology, and utilizes the connection relationship between various valves to form a linkage action to adapt to different drilling operations.

[0019] The hydraulic circuit of the hydraulic system is a group of two pumps, the input ends of which are respectively connected to the oil tank through the oil suction filter 26 and the auxiliary oil suction filter 29;

[0020] The output end of the main oil pump 23 is connected to the main multi-way reversing valve 20 through a pipeline, and the first two pipelines of the main multi-way reversing valve 20 are connected with the left and right travel motors 1 and 2 of the control crawler chassis for controlling The travel motor, the third pipeline is connected to the main engine power head motor 9 in rotation, and is used to control the rotation of the main engine power head motor, and the fourth pipeline is connecte...

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Abstract

The invention provides a coal mine used caterpillar-mounted full-hydraulic underground drill hydraulic system. The prior caterpillar-mounted full-hydraulic underground drill requires a plurality of hydraulic control valves or to add a change valve in the hydraulic system in order to protect the thread of the drilling tool when the drilling tool is lifted or lowered quickly, or wrenched and disassembled, which causes not only complexity of the hydraulic system and low reliability, but also the trouble to operate and control the system and low control accuracy. The invention is designed to solve the problems. The caterpillar-mounted self-propelled underground drill hydraulic system provided by the invention comprises a caterpillar traveling loop, a unit head gyration loop, a feeding pulling loop, a drill stabilization and angular adjustment loop, and has the functions of linear traveling of the drill, turning on site, stopping on a ramp, gyration and feeding of the unit head, linkage of a feeding oil cylinder, a chuck and a clamper. In addition, the invention has the functions of hydraulic feedback control and linkage. Accordingly, the hydraulic system provided by the invention has the advantages of handiness, convenience for control, high control accuracy, quick response, etc.

Description

technical field [0001] The invention relates to drilling machinery, in particular to a hydraulic system of a crawler-type full-hydraulic tunnel drilling machine for coal mines. Background technique [0002] At present, the relocation of fully hydraulic tunnel drilling rigs mainly relies on manual handling or short-distance movement of walking mechanisms, and the speed and torque are controlled by manual variable methods, which have problems such as simple functions, low control accuracy, and low hydraulic system efficiency. [0003] The existing crawler-type fully hydraulic tunnel drilling rigs need to install multiple hydraulic control valves or add reversing valves in the hydraulic system in order to solve the problems of quickly lifting and unloading the drilling tools and protecting the drilling tool threads when unscrewing and unscrewing the drilling tools. Complexity, low reliability, troublesome system manipulation and low control precision. Contents of the inventio...

Claims

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Application Information

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IPC IPC(8): F15B11/16F15B13/02E21B7/02
Inventor 姚克凡东殷新胜姚宁平孙保山姚亚峰田宏亮
Owner 煤炭科学研究总院有限公司西安研究院
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