Hard rock intelligent frequency conversion electric drive raise boring machine

A technology for raising drilling rigs and variable frequency motors, applied to rotary drilling rigs, drill pipes, drill pipes, etc., which can solve problems such as inconvenience and increased risks, and achieve the effect of intelligent frequency conversion and reducing personnel workload

Inactive Publication Date: 2019-04-05
BEIJING CHINA COAL MINE ENG CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Chinese Patent No. CN206000454 discloses a new type of electric drive raise drilling rig, which can realize inorganic variable speed and improve drilling efficiency. However, it needs to be judged manually according to the drilling situation on site, and it will increase the risk and cause inconvenience if the drilling is stopped many times and the drilling is checked.

Method used

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  • Hard rock intelligent frequency conversion electric drive raise boring machine
  • Hard rock intelligent frequency conversion electric drive raise boring machine

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Embodiment Construction

[0016] like figure 1 As shown, the extremely hard rock intelligent frequency conversion electric drive raise drilling rig in this embodiment includes an electric drive transmission system and an intelligent control system. The intelligent control system transmits control signals to the electric drive transmission system, and the electric drive transmission system performs transmission according to the control signals. . The electric drive transmission system includes a variable frequency motor 1, a hydraulic torque converter 2, a planetary gearbox 3, a gear box 4 and a power head 8; The power input end is driven and connected, the power output end of the hydraulic torque converter 2 is connected with the power input end of the planetary gearbox 3, and the power output end of the planetary gearbox 3 is connected to the power of the gearbox 4. The input end is drivingly connected; the power output end of the gearbox 4 is drivingly connected to the power input end of the power h...

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Abstract

The invention discloses a hard rock intelligent frequency conversion electric drive raise boring machine which comprises an electric drive transmission system and an intelligent control system. The intelligent control system transmits control signals to the electric drive transmission system, and the electric drive transmission system is driven according to the control signals. A torque sensor anda tension sensor sense drill rod torque signals and drill rod tension signals and transmit the signals to a controller, the controller performs output control on a frequency conversion motor according to the signals, on-site conditions and previous empirical parameters, so that intelligent frequency conversion is achieved, worker workload is decreased, and increase of construction risks caused byrepeated drilling stopping, lifting and checking can be avoided.

Description

technical field [0001] The invention relates to the technical field of mine exploration. Specifically, it is an intelligent variable frequency electric drive raise drilling machine for extremely hard rock. Background technique [0002] At present, it is very difficult to construct the pilot hole in the ultra-hard rock raising well, and it consumes a lot of three-cone bits. During the process of replacing the three-cone bit, it is necessary to lift the drill several times to increase the risk of hole plugging. Using a special pilot hole drill is a conventional solution, but It is necessary to purchase a special pilot hole drilling machine, which increases the cost. The polycrystalline diamond compact bit (PDC bit) has high hardness and is cheaper than natural diamond, which can slow down the wear of the bit. However, the current PDC bit requires a speed of 80 to 200 rpm, while the maximum speed of the guide hole of the raise drilling machine is not high. More than 40 rpm, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B3/02E21B44/04E21B19/18
CPCE21B3/02E21B19/18E21B44/04
Inventor 刘志强谭杰谭昊宁方波宋朝阳康迎春贺江波
Owner BEIJING CHINA COAL MINE ENG CO LTD
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