WO2021012101A1 - Système de propulsion à pression constante pour appareil de forage de roche - Google Patents

Système de propulsion à pression constante pour appareil de forage de roche Download PDF

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Publication number
WO2021012101A1
WO2021012101A1 PCT/CN2019/096840 CN2019096840W WO2021012101A1 WO 2021012101 A1 WO2021012101 A1 WO 2021012101A1 CN 2019096840 W CN2019096840 W CN 2019096840W WO 2021012101 A1 WO2021012101 A1 WO 2021012101A1
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WO
WIPO (PCT)
Prior art keywords
propulsion
proportional valve
hydraulic
oil circuit
electro
Prior art date
Application number
PCT/CN2019/096840
Other languages
English (en)
Chinese (zh)
Inventor
杨以琼
唐忠盛
徐海涵
韦佳
冯宜超
Original Assignee
广西恒日科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广西恒日科技股份有限公司 filed Critical 广西恒日科技股份有限公司
Priority to PCT/CN2019/096840 priority Critical patent/WO2021012101A1/fr
Publication of WO2021012101A1 publication Critical patent/WO2021012101A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/66—Machines for making slits with additional arrangements for drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/68—Machines for making slits combined with equipment for removing, e.g. by loading, material won by other means
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/20—General features of equipment for removal of chippings, e.g. for loading on conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00—Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors

Definitions

  • the invention relates to the technical field of rock mining engineering machinery, in particular to a constant pressure propulsion system of a rock drill.
  • Rock drilling rig is a kind of engineering machinery equipment used in rock mining. Its working purpose is to drill a hole of a certain diameter in the rock, so that explosives can be filled in the hole to blast and decompose the rock.
  • the rock drilling rig has propulsion and transfer drills.
  • the impact function the hydraulic system drives the hydraulic motor of the drilling mechanism to rotate, driving the drill rod and the drill bit to rotate, and the reciprocating movement of the impact cylinder piston acts on the end of the drill rod of the drilling mechanism, and the impact energy is transmitted to the drill bit through the drill rod, pushing the cylinder to push The rock drill advances.
  • manual advancement has certain mandatory drilling, which is prone to blockage or sticking.
  • the present invention provides a constant pressure propulsion system for a rock drill.
  • the constant pressure propulsion system of rock drilling rigs includes hydraulic motors, propulsion hydraulic cylinders, impact hydraulic cylinders, as well as rotary pressure sensors, propulsion pressure sensors, rotary oil circuit electro-hydraulic proportional valves, propulsion oil circuit electro-hydraulic proportional valves, and impact oil An electro-hydraulic proportional valve, a microcomputer controller, and a display screen.
  • the rotary pressure sensor and the propulsion pressure sensor are respectively arranged on the oil circuits of the hydraulic motor and the propulsion cylinder.
  • Electro-hydraulic proportional valve and impact oil circuit Electro-hydraulic proportional valve are respectively set on the oil circuit of hydraulic motor, propulsion hydraulic cylinder and impactor impact hydraulic cylinder.
  • the rotary pressure sensor, propulsion pressure sensor and display screen are all connected to the input terminal of the microcomputer controller.
  • the electro-hydraulic proportional valve of the rotary oil circuit, the electro-hydraulic proportional valve of the propulsion oil circuit and the electro-hydraulic proportional valve of the impulse oil circuit are electrically connected to the output end of the microcomputer controller.
  • the microcomputer controller is a single-chip microcomputer controller or a PLC controller.
  • the propulsion oil circuit electro-hydraulic proportional valve has two-speed control valves, namely a fast forward and backward control valve and a slow forward and backward control valve.
  • the propulsion pressure sensor during drilling can detect the propulsion pressure of the propulsion mechanism of the rock drill in real time, and send the detected propulsion pressure data to the microcomputer controller, combined with the detection data of the rotating pressure sensor, and microcomputer control
  • the controller respectively issues commands to the electro-hydraulic proportional valve of the propulsion oil circuit and the electro-hydraulic proportional valve of the rotary oil circuit to control the thrust and rotation speed of the hydraulic cylinder, and at the same time controls the electro-hydraulic proportional valve of the impulse oil circuit to control the impact force.
  • the system of the present invention does not use a complicated hydraulic pilot feedback system, and can realize real-time detection of drilling resistance and automatic adjustment of pushing speed, rotation speed and impact force, simple structure, fast response speed, and can better maintain a certain pressure range Work stably.
  • Figure 1 is a structural block diagram of the constant pressure propulsion system of the rock drilling rig of the present invention.
  • Figure 2 is a logical schematic diagram of the constant pressure propulsion system of the rock drilling rig of the present invention.
  • the constant pressure propulsion system of the rock drilling rig of the present invention includes the prior art hydraulic motor, propulsion hydraulic cylinder, and impactor impact hydraulic cylinder, as shown in Figure 1, and also includes a rotary pressure sensor, a propulsion pressure sensor, and a rotary oil circuit electro-hydraulic ratio Valve, propulsion oil circuit electro-hydraulic proportional valve, impact oil circuit electro-hydraulic proportional valve, microcomputer controller and display screen, rotary pressure sensor, propulsion pressure sensor are respectively arranged on the oil circuit of hydraulic motor and propulsion cylinder, and are correspondingly close to Hydraulic motor and propulsion hydraulic cylinder, rotary oil circuit electro-hydraulic proportional valve, propulsion oil circuit electro-hydraulic proportional valve and impact oil circuit electro-hydraulic proportional valve are respectively corresponding to the oils of hydraulic motor, propulsion hydraulic cylinder and impact hydraulic cylinder On the road, the rotary pressure sensor, the propulsion pressure sensor and the display are electrically connected to the input of the microcomputer controller.
  • the microcomputer controller is a single-chip microcomputer controller or PLC controller with programming calculation function. Before drilling operations, confirm the type and parameters of the drilled rock through the display screen, and the controller will call the existing calculation program for this type of rock In order to output accurate response control actions, the calculation program can include specific processing procedures for increasing the pressure value, specific processing procedures for reducing the pressure value, and the speed at which the pressure value increases or decreases, that is, the pressure value changes slowly or Fast, corresponding specific processing procedures.
  • the rotation pressure sensor detects the rotation pressure in real time and feeds the signal of the increase in rotation pressure to the microcomputer controller.
  • the microcomputer controller combines the rotation pressure increase value Analyze whether the increase is rapid or slow, and combined with the real-time detection value of the propulsion pressure sensor, commands are issued to the propulsion oil circuit electro-hydraulic proportional valve and the impact oil circuit electro-hydraulic proportional valve to reduce the propulsion speed and impact force of the impactor.
  • the rotation pressure sensor detects the rotation pressure in real time and feeds back the signal of the reduction of the rotation pressure to the microcomputer controller.
  • the microcomputer controller analyzes whether the rotation pressure decreases rapidly or slowly. Combined with the real-time detection value of the propulsion pressure sensor, commands are issued to the propulsion oil circuit electro-hydraulic proportional valve and the impact oil circuit electro-hydraulic proportional valve to increase the propulsion speed and impact force of the impactor.
  • the propulsion speed (TS1) is executed every 0.5 seconds Decrease by 10 speed cycles at a time; vice versa. So as to achieve automatic adjustment of the advancing speed.
  • the rock drill bit can better maintain stable operation within a certain pressure range.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne un système de propulsion à pression constante pour un appareil de forage de roche, comprenant un moteur hydraulique, un vérin hydraulique de propulsion, un vérin hydraulique d'impacteur, un capteur de pression de rotation, un capteur de pression de propulsion, une vanne proportionnelle électro-hydraulique de conduite d'huile de rotation, une vanne proportionnelle électro-hydraulique de conduite d'huile de propulsion, une vanne proportionnelle électro-hydraulique de conduite d'huile d'impact, un contrôleur de micro-ordinateur et un écran d'affichage. Le capteur de pression de rotation et le capteur de pression de propulsion sont respectivement disposés sur la conduite d'huile du moteur hydraulique et sur le vérin hydraulique de propulsion ; la vanne proportionnelle électro-hydraulique de conduite d'huile de rotation, la vanne proportionnelle électro-hydraulique de conduite d'huile de propulsion et la vanne proportionnelle électro-hydraulique de conduite d'huile d'impact sont respectivement disposées sur la conduite d'huile du moteur hydraulique, le vérin hydraulique de propulsion et le vérin hydraulique d'impacteur ; le capteur de pression de rotation, le capteur de pression de propulsion et l'écran d'affichage sont électriquement connectés à l'extrémité d'entrée du contrôleur de micro-ordinateur ; et la vanne proportionnelle électro-hydraulique de conduite d'huile de rotation, la vanne proportionnelle électro-hydraulique de conduite d'huile de propulsion et la vanne proportionnelle électro-hydraulique de conduite d'huile d'impact sont électriquement connectées à l'extrémité de sortie du contrôleur de micro-ordinateur.
PCT/CN2019/096840 2019-07-19 2019-07-19 Système de propulsion à pression constante pour appareil de forage de roche WO2021012101A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/096840 WO2021012101A1 (fr) 2019-07-19 2019-07-19 Système de propulsion à pression constante pour appareil de forage de roche

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2019/096840 WO2021012101A1 (fr) 2019-07-19 2019-07-19 Système de propulsion à pression constante pour appareil de forage de roche

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WO2021012101A1 true WO2021012101A1 (fr) 2021-01-28

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6510902B1 (en) * 1999-05-22 2003-01-28 Krupp Berco Bautechnik Gmbh Method and device for determining the operating time and the operating condition of a hydraulic percussion unit
CN103742471A (zh) * 2013-12-25 2014-04-23 广西恒日科技有限公司 凿岩钻机防卡钎系统
CN104453845A (zh) * 2014-12-12 2015-03-25 中国地质大学（武汉） 一种基于can总线的全液压动力头钻机控制系统
CN205715073U (zh) * 2016-04-20 2016-11-23 威海人合机电股份有限公司 一种智能钻机电液控制系统

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6510902B1 (en) * 1999-05-22 2003-01-28 Krupp Berco Bautechnik Gmbh Method and device for determining the operating time and the operating condition of a hydraulic percussion unit
CN103742471A (zh) * 2013-12-25 2014-04-23 广西恒日科技有限公司 凿岩钻机防卡钎系统
CN104453845A (zh) * 2014-12-12 2015-03-25 中国地质大学（武汉） 一种基于can总线的全液压动力头钻机控制系统
CN205715073U (zh) * 2016-04-20 2016-11-23 威海人合机电股份有限公司 一种智能钻机电液控制系统

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