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Hydraulic-rock-drill measurement and control system

A technology of hydraulic rock drill and measurement and control system, which is applied to the automatic control system of drilling, drilling equipment, earthwork drilling and production, etc. It can solve the complicated and difficult problems of the stability of the working state of hydraulic rock drill, and achieve the improvement of rock drilling efficiency and working parameters. maintain a stable effect

Inactive Publication Date: 2016-11-23
GUILIN UNIV OF AEROSPACE TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing hydraulic rock drill systems are not only complicated, but most of them are pure hydraulic systems composed of combined valves and pressure negative feedback control hydraulic control valves. It is difficult to maintain the stability of the hydraulic rock drill's working state for a long time

Method used

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  • Hydraulic-rock-drill measurement and control system
  • Hydraulic-rock-drill measurement and control system

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Embodiment Construction

[0019] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0020] As shown in the accompanying drawing 1, a measurement and control system for identifying the working state of a hydraulic rock drill according to the present invention includes a power mechanism, an actuator, an overflow valve, a rock drilling control valve group, and a measurement and control system; wherein:

[0021] The power mechanism includes two one-way pumps B1 and B2. The one-way pump B1 is driven by a motor M1 equipped with a frequency converter T. Adjust the frequency converter T to change the speed of the motor M1, thereby changing the displacement of the pump B1 to change the speed of the load. The identification result of the working state of the measurement and control system makes R feedback to control the frequency converter T; the one-way pump B2 is driven by the motor M2 to provide the required pressure oil.

[0022] The executive ...

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Abstract

The invention discloses a hydraulic-rock-drill measurement and control system. The hydraulic-rock-drill measurement and control system comprises a power mechanism, an actuating mechanism, an overflow valve, a rock drilling control valve and an electrical system. The power mechanism comprises a one-way pump for supplying oil to a hydraulic system. The actuating mechanism comprises a boosting hydraulic cylinder, a rock drill and a rotation motor. The overflow valve comprises a pilot-type proportional overflow valve and an overflow valve body; a hydraulic-rock-drill control valve comprises a pilot proportional pressure reducing valve, a high-speed switch valve, a pilot-type electromagnetic directional valve and a one-way valve; the measurement and control system comprises four pressure sensors, three flow sensors, an amplifier, a data collection machine card, a rock-drilling-state identification system and a controller. The working state of a hydraulic rock drill is matched through the electrical system, and is compared with the corresponding normal rock drilling state, and the errors of working parameters of the system are obtained and corrected. According to the hydraulic-rock-drill measurement and control system, real-time monitoring and control of the hydraulic rock drill can be achieved through the measurement and control system, the working state of the rock drill is kept in the efficient rock drilling state in the rock drilling boosting process.

Description

technical field [0001] The invention relates to the field of hydraulic measurement and control, in particular to a measurement and control system for identifying the working state of a hydraulic rock drill. Background technique [0002] Hydraulic rock drills are widely used in mining drilling, building construction, cement pavement, asphalt pavement and other fields. In order to achieve high efficiency and low cost, various hydraulic rock drill systems have been designed at home and abroad. Due to the harsh working environment and complex and changeable working conditions of the hydraulic rock drill, the stability of the working state of the hydraulic rock drill has a great influence on its working efficiency. Most of the existing hydraulic rock drill systems are not only complex but also mostly pure hydraulic systems composed of combined valves and pressure negative feedback control hydraulic control valves, which make it difficult to maintain the stability of the hydrauli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B44/00
CPCE21B44/00
Inventor 刘忠高战伟李天明邹爱成秦展田
Owner GUILIN UNIV OF AEROSPACE TECH
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