CN110242628A - Anti-sticking pricker hydraulic control system and rock drilling equipment - Google Patents
Anti-sticking pricker hydraulic control system and rock drilling equipment Download PDFInfo
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- CN110242628A CN110242628A CN201910672103.5A CN201910672103A CN110242628A CN 110242628 A CN110242628 A CN 110242628A CN 201910672103 A CN201910672103 A CN 201910672103A CN 110242628 A CN110242628 A CN 110242628A
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- 239000011435 rock Substances 0.000 title claims abstract description 79
- 238000005553 drilling Methods 0.000 title claims abstract description 57
- 239000002828 fuel tank Substances 0.000 claims abstract description 39
- 239000003921 oil Substances 0.000 claims description 93
- 230000008859 change Effects 0.000 claims description 28
- 238000013016 damping Methods 0.000 claims description 10
- 239000010727 cylinder oil Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims 2
- 230000003044 adaptive effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000009527 percussion Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000009918 complex formation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- -1 at this point Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000069 prophylactic effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
-
- 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
-
- 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
- F15B13/024—Pressure relief valves
-
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/001—Servomotor systems with fluidic control
-
- 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
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/044—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by electrically-controlled means, e.g. solenoids, torque-motors
- F15B2013/0448—Actuation by solenoid and permanent magnet
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20546—Type of pump variable capacity
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/63—Electronic controllers
- F15B2211/6303—Electronic controllers using input signals
- F15B2211/6306—Electronic controllers using input signals representing a pressure
-
- 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
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/65—Methods of control of the load sensing pressure
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Earth Drilling (AREA)
Abstract
The present invention relates to rock drilling equipment technical field more particularly to a kind of anti-sticking pricker hydraulic control system and rock drilling equipments.The anti-sticking pricker hydraulic control system includes impulsive control module, propelling pressure control module, fltting speed control module, variable pump, rotation motor and propelling cylinder；Impulsive control module includes the first proportional reversing valve for being connected to the load feedback mouth and fuel tank of variable pump, and pilot control opening connects the oil inlet of propelling cylinder；Propelling pressure control module includes the third proportional reversing valve for being connected to the oil inlet and fuel tank of propelling cylinder；Fltting speed control module includes the guide proportion throttle valve being connected between fuel tank and the oil inlet of propelling cylinder, and the pilot control opening of third proportional reversing valve and guide proportion throttle valve is all connected with the oil inlet of rotation motor.The rock drilling equipment includes the anti-sticking pricker hydraulic control system.The anti-sticking pricker hydraulic control system and rock drilling equipment, with the reasonable surge of all kinds of rock stratum Adaptive matchings, propelling pressure and fltting speed.
Description
Technical field
The present invention relates to rock drilling equipment technical field more particularly to a kind of anti-sticking pricker hydraulic control system and rock drilling equipments.
Background technique
In the related technology, in tunnel rock drilling operation, hydraulic rock drilling equipment is since its rock penetration performance is high, pollution is small, safety
Property it is high the advantages that and be widely used in Rail Highway tunnel and other mines digging etc. occasions.
The rock drilling principle of hydraulic gate is generally roughly the same, and the impact energy that rock drill generates can be transmitted by attachment device
To drill bit, ballistic work acts on rock stratum and smashes rock, at this point, rock drill will drive drilling rod rotation, recycles the height of drill bit
Fast shear action crushes rock, and benefit is rinsed with water and takes the rock of crushing out of blasthole with bit, while rock drill pushes away
Oil inlet cylinder drives rock drill to promote, and makes drill bit continuous action on rock stratum, to realize efficient penetration rate.But due to rock
Layer structure is more complicated, it may appear that the uncertain rock stratum form such as detritus, crack or lava, so that rock drill is in drilling process
In there is the case where drilling rod deflection or bit freezing.Under situation serious situation, it will cause drilling rod and be difficult to extract and generate useless hole, simultaneously
The drilling tools such as drilling rod, drill bit are wasted, the production efficiency of rock drilling construction is not only affected, but also increase construction cost, therefore, generally
Drill jumbo can all be equipped with a set of anti-sticking pricker hydraulic control system to reduce the risk of bit freezing.
Card pricker type is generally divided into gradual change card pricker, crack card pricker and solution cavity card pricker three classes, at present country's hydraulic drill ring
The anti-sticking hydraulic system of second level is generallyd use, is able to achieve mainly for gradual change card pricker and crack card pricker, the system to propelling cylinder
Control makes propelling cylinder stop propulsion or reverse propulsion when the rotational pressure of feedback reaches the anti-sticking pricker value of setting, thus real
The now effect of pre- preventing sticking, but the system is only provided with the anti-sticking pressure control of two-stage, cannot do to propelling pressure and percussion power
Effectively continuous control cannot prevent the card pricker accident being likely to occur and low-calorie pricker risk in advance, meanwhile, anti-sticking pricker starting
When, propelling cylinder can be made to stop or return, reduce drilling efficiency；And it is directed to most complicated solution cavity card pricker, many control systems
Do not have the effect for preventing such card pricker, conventional control mode yet effective anti-sticking effect relatively difficult to achieve.
Thus, it would be highly desirable to it proposes a kind of anti-sticking pricker hydraulic control system, gradual change card pricker, crack card pricker and solution cavity card can be coped with
Pricker these three types card pricker, and effectively continuous control can be done to propelling pressure, surge and fltting speed, with prevent in advance can
The card pricker accident and low-calorie pricker risk that can occur.
Summary of the invention
The first object of the present invention is to provide anti-sticking pricker hydraulic control system, to solve the relevant technologies to a certain extent
In effectively continuous control cannot be done to propelling pressure and percussion power, and the technical issues of solution cavity card pricker can not be coped with.
The second object of the present invention is to provide rock drilling equipment, with solve to a certain extent in the related technology cannot be to pushing away
The technical issues of doing effectively continuous control into pressure and percussion power, and solution cavity card pricker can not be coped with.
To achieve the goals above, the present invention provides following technical schemes；
Based on above-mentioned first purpose, anti-sticking pricker hydraulic control system provided by the invention is used for rock drilling equipment, including impact
Control module, propelling pressure control module, fltting speed control module, variable pump, rotation motor and propelling cylinder；
The impulsive control module includes the first proportional reversing valve, and first proportional reversing valve is connected to the variable pump
The pilot control opening of load feedback mouth and fuel tank, first proportional reversing valve connects the oil inlet of the propelling cylinder；
The propelling pressure control module includes third proportional reversing valve, and the third proportional reversing valve is connected to the propulsion
The pilot control opening of the oil inlet of oil cylinder and the fuel tank, the third proportional reversing valve connects the oil inlet of the rotation motor
Mouthful；
The fltting speed control module includes guide proportion throttle valve, and the guide proportion throttle valve is connected to the oil
Between case and the oil inlet of the propelling cylinder, the pilot control opening of the guide proportion throttle valve connects the rotation motor
Oil inlet.
In any of the above-described technical solution, optionally, the impulsive control module further includes the first low pressure relief valve, described
The overflow port of first low pressure relief valve is connected to the fuel tank, the oil inlet connection of first low pressure relief valve in the fuel tank and
Between one oil outlet of first proportional reversing valve；
The propelling pressure control module further includes third low pressure relief valve, and the third proportional reversing valve is connected to described
Between the oil inlet of propelling cylinder and the oil inlet of the third low pressure relief valve, the overflow port of the third low pressure relief valve connects
Lead to the fuel tank.
In any of the above-described technical solution, optionally, the impulsive control module further includes the first high-pressure overflow valve, described
First high-pressure overflow valve is connected between the fuel tank and another oil outlet of first proportional reversing valve；
The propelling pressure control module further includes third high-pressure overflow valve, and the oil inlet of the third high-pressure overflow valve connects
It connects between the oil inlet and the third proportional reversing valve of the propelling cylinder, the overflow port of third high-pressure overflow valve is connected to institute
State fuel tank；
The propelling pressure control module further includes solenoid directional control valve three, and the solenoid directional control valve three is connected to the third
Between high-pressure overflow valve and the third low pressure relief valve, to be connected to or cut off oil inlet and the institute of the third high-pressure overflow valve
State the oil inlet of third low pressure relief valve；
The anti-sticking pricker hydraulic control system further includes second pressure sensor, and the second pressure sensor is for measuring
The rotational pressure of the rotation motor, the solenoid directional control valve three are electrically connected with the second pressure sensor.
In any of the above-described technical solution, optionally, the propelling pressure control module further includes pressure-compensated valve and list
To valve, the pressure-compensated valve and it is connected between the fuel tank and the guide proportion throttle valve；
The oil outlet of the check valve is connected to the valve port close to the fuel tank of the pressure-compensated valve, the check valve
Oil inlet be connected to the pressure-compensated valve close to the propelling cylinder oil inlet valve port.
In any of the above-described technical solution, optionally, the fltting speed control module further includes two-position four way change valve,
The control mouth of the two-position four way change valve connects the oil inlet of the rotation motor, and the two-position four way change valve being capable of basis
The rotational pressure commutation of the rotation motor promotes or retracts to control the cylinder rod of the propelling cylinder；
The setting pressure of the two-position four way change valve is greater than the setting pressure of the guide proportion throttle valve.
In any of the above-described technical solution, optionally, anti-sticking pricker hydraulic control system further includes first pressure sensor, institute
First pressure sensor is stated for measuring the propelling pressure of the propelling cylinder；
The impulsive control module further includes solenoid directional control valve one and solenoid directional control valve two, the solenoid directional control valve one and institute
Solenoid directional control valve two is stated to be electrically connected with the first pressure sensor；
The solenoid directional control valve one can be connected to before commutation the variable pump load feedback mouth and first ratio
The load feedback mouth of the variable pump can be connected to described by the oil inlet of reversal valve, the solenoid directional control valve one after commutation
Between first low pressure relief valve and first proportional reversing valve；
The solenoid directional control valve two can be by the control mouth of the guide proportion throttle valve and the rotation horse before commutation
The oil inlet reached is connected, and the solenoid directional control valve two can connect the control mouth of the guide proportion throttle valve after commutation
Between the solenoid directional control valve one and the load feedback mouth of the variable pump.
In any of the above-described technical solution, optionally, the impulsive control module further includes solenoid directional control valve four and hydraulic control
Reversal valve, the solenoid directional control valve four can be connected to the oil inlet and the solenoid directional control valve of the rotation motor before commutation
Two, the solenoid directional control valve four can be connected to the solenoid directional control valve two and the fuel tank after commutation, and described two four
The control mouth of logical reversal valve is connected between the solenoid directional control valve four and the solenoid directional control valve two；
The control mouth of the pilot operated directional control valve connects the load feedback mouth of the variable pump, to be connected to or cut off the fuel tank
With the oil inlet of first proportional reversing valve.
In any of the above-described technical solution, optionally, anti-sticking pricker hydraulic control system further includes damping hole, the variable pump
Bypass, the propelling cylinder oil inlet and first proportional reversing valve between and the propelling cylinder oil inlet and
The damping hole is provided between the third proportional reversing valve.
In any of the above-described technical solution, optionally, the variable pump is load sensitive pump.
Based on above-mentioned second purpose, rock drilling equipment provided by the invention, including anti-as described in any of the above-described technical solution
Card pricker hydraulic control system.
By adopting the above technical scheme, beneficial effects of the present invention:
Anti-sticking pricker hydraulic control system provided by the invention, passes through the first proportional reversing valve of impulsive control module and propulsion
The proportion adjustment function of the third proportional reversing valve of pressure control module can make the rotational pressure of rotation motor be maintained at a conjunction
The drilling pressure value of reason, and propelling cylinder is made to be maintained at a reasonable propelling pressure value, make the anti-sticking pricker hydraulic control system
The state of Adaptive matching can be reached between all kinds of complex formations, so as to avoid in drilling process due to HI high impact pressure
Lock of tool drilling caused by power, high propelling pressure and the high rate of advance, and then reach the stablizing effect of system self-adaption control, and mention
High rock penetration performance.Rock drilling equipment provided by the invention includes the anti-sticking pricker hydraulic control system, can be realized the anti-sticking pricker liquid
Above-mentioned all beneficial effects of pressure control system.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the first structure diagram for the anti-sticking pricker hydraulic control system that the embodiment of the present invention one provides；
Fig. 2 is the second structural schematic diagram of the anti-sticking pricker hydraulic control system that the embodiment of the present invention one provides；
Fig. 3 is the third structural schematic diagram for the anti-sticking pricker hydraulic control system that the embodiment of the present invention one provides.
Icon: 1- impulsive control module；The first high-pressure overflow valve of 11-；The first low pressure relief valve of 12-；The first ratio of 14- is changed
To valve；15- pilot operated directional control valve；16- solenoid directional control valve one；17- solenoid directional control valve four；18- solenoid directional control valve two；2- fltting speed
Control module；21- guide proportion throttle valve；22- two-position four way change valve；3- propelling pressure control module；31- pressure compensation
Valve；32- third high-pressure overflow valve；33- third low pressure relief valve；34- solenoid directional control valve three；35- third proportional reversing valve；4-
Two pressure sensors；5- rotation motor；6- damping hole；7- variable pump；8- first pressure sensor；9- propelling cylinder；10- rock drilling
Machine.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Embodiment one
Referring to shown in Fig. 1 to Fig. 3, present embodiments providing a kind of anti-sticking pricker hydraulic control system；Fig. 1 mentions for the present embodiment
The first structure diagram of the anti-sticking pricker hydraulic control system supplied；Fig. 2 is anti-sticking pricker hydraulic control system provided in this embodiment
The second structural schematic diagram；Fig. 3 is the third structural schematic diagram of anti-sticking pricker hydraulic control system provided in this embodiment.
Anti-sticking pricker hydraulic device provided in this embodiment is used for rock drilling equipment.
Referring to shown in Fig. 1 to Fig. 3, which includes impulsive control module 1, propelling pressure control mould
Block 3, fltting speed control module 2, variable pump 7, rotation motor 5 and propelling cylinder 9；Wherein, variable pump 7 is for driving rock drill
10 impact rocks, rotation motor 5 are used to drive the bit of rock drill 10, and propelling cylinder 9 is used to drive the brill of rock drill 10
Head is crept into rock depths.
Impulsive control module 1 includes the first proportional reversing valve 14, and the load that the first proportional reversing valve 14 is connected to variable pump 7 is anti-
Present mouth and fuel tank, the oil inlet of the feedback port connection propelling cylinder 9 of the first proportional reversing valve 14；Wherein, the valve of the first proportioning valve
Core aperture is determined that the propelling pressure of propelling cylinder 9 is higher by the propelling pressure of propelling cylinder 9, the first proportioning valve to first high
The spool aperture of pressurized overflow valve is bigger, and the spool aperture to the first low pressure relief valve of the first proportioning valve reduces, thus variable pump 7
Load feedback mouth pressure it is bigger.
Propelling pressure control module 3 includes third proportional reversing valve 35, and third proportional reversing valve 35 is connected to propelling cylinder 9
Oil inlet and fuel tank, the oil inlet of the control mouth connection rotation motor 5 of third proportional reversing valve 35.Wherein, third ratio commutates
The spool aperture of valve 35 is determined that the rotational pressure of rotation motor 5 is bigger by the rotational pressure of rotation motor 5, the commutation of third ratio
The spool aperture to rotation motor 5 of valve 35 is bigger, and the spool aperture to propelling cylinder 9 of third proportional reversing valve 35 is got over
Greatly, i.e. the propelling pressure of propelling cylinder 9 becomes smaller therewith.
The fltting speed control module 2 includes guide proportion throttle valve 21, and the guide proportion throttle valve 21 is connected to
Between the fuel tank and the oil inlet of the propelling cylinder 9, described in the pilot control opening connection of the guide proportion throttle valve 21
The oil inlet of rotation motor 5.Wherein, the spool aperture of guide proportion throttle valve 21 is determined by the rotational pressure of rotation motor 5, is pushed away
The oil inlet flow of oil inlet cylinder 9 and the spool aperture of guide proportion throttle valve 21 are related, and the fltting speed of propelling cylinder 9 and propulsion
The oil inlet flow of oil cylinder 9 is related.That is, when rock drill 10 is under stable rotation and advanced state, if rock stratum occurs
Variation, the rotational pressure of rotation motor 5 also change therewith.If rotational pressure increases, which can feed back third ratio
Example reversal valve 35 on, push third proportional reversing valve 35 spool ratio commutation, at this time the propelling pressure ratio of propelling cylinder 9 with
Reduction.Meanwhile the propelling pressure of propelling cylinder 9 can be fed back onto the first proportional reversing valve 14, push the first proportional reversing valve
14 spool ratio commutation, ratio reduces the pressure of the load feedback mouth of variable pump 7 therewith, to make the percussive pressure of rock drill 10
Power ratio reduces.
At the same time, when rotational pressure changes, rock drilling Adaptive matching mode is initially entered, if rotated after adjusting
Pressure continues to increase, and higher rotational pressure value can feed back to guide proportion throttle valve 21, adjusts guide according to rotational pressure value
The spool aperture ratio of proportional throttle valve 21 reduces, and can scale down the flow to the oil inlet fuel feeding of propelling cylinder 9, into
And the fltting speed of controllable propelling cylinder 9 reduces.Further, when rotational pressure continues to increase and be higher than guide proportion throttling
When pressure value set by valve 21, the fltting speed of propelling cylinder 9 is minimized, and system will pass through rock with lower fltting speed
Layer.At this point, system enters throttling turndown mode.
It is understood that, according to above-mentioned same principle, can control if the rotational pressure of rotation motor 5 becomes larger
The propelling pressure and fltting speed of propelling cylinder 9 increase, while the surge for controlling rock drill 10 increases.Certainly, if rock
Layer do not change, i.e., rotation motor 5 rotational pressure stablize in the reasonable scope, while the propelling pressure of propelling cylinder 9 and
Fltting speed is also stabilized in zone of reasonableness, and the surge of rock drill 10 is also stabilized in zone of reasonableness.
In this way, the association between propelling cylinder 9, variable pump 7 and rotation motor 5 to realize the anti-sticking pricker hydraulic control system
With work and automatic adjusument, rock drilling Adaptive matching mode is entered.
Anti-sticking pricker hydraulic control system in the present embodiment passes through 14 He of the first proportional reversing valve of impulsive control module 1
The proportion adjustment function of the third proportional reversing valve 35 of propelling pressure control module 3 can be such that the rotational pressure of rotation motor 5 keeps
In a reasonable drilling pressure value, and propelling cylinder 9 is set to be maintained at a reasonable propelling pressure value, and press for promoting
Power, fltting speed and surge realized in a manner of continuously adjusting, enable the anti-sticking pricker hydraulic control system with it is all kinds of
Reach the state of Adaptive matching between complex formation, is pressed so as to avoid in drilling process since high shock pressure, height promote
Lock of tool drilling caused by power and the high rate of advance, and then reach the stablizing effect of system self-adaption control, and improve rock drilling effect
Rate.Further, since can be realized the comprehensive adjustment for propelling pressure, fltting speed and surge three, it is possible to answer
To three kinds of card prickers in gradual change card pricker, crack card pricker and solution cavity card pricker.Be level pressure force value compared to propelling pressure in the related technology,
The card pricker risk that will occur cannot be prevented in advance by not having according to operating condition consecutive variations and using switching logic control mode
Technical solution, the anti-sticking pricker hydraulic control system in the technical solution, which has, to be carried out different rock-layers operating condition adaptive to reduce card
The advantage of pricker risk, and have prophylactic function for gradual change card pricker operating condition.
In addition, the anti-sticking pricker hydraulic control system is guaranteeing control precision and under the premise of the corresponding time, compared to full electricity
The anti-sticking pricker system of brain rock drilling equipment, structure is simple, easy to maintain, high reliablity, has very strong applicability and replicability.
Shown in Figure 1 in the optinal plan of the present embodiment, impulsive control module 1 further includes the first low pressure relief valve 12,
The overflow port of first low pressure relief valve 12 is connected to fuel tank, and the oil inlet of the first low pressure relief valve 12 is connected in fuel tank and the first ratio
Between one oil outlet of reversal valve 14；
Propelling pressure control module 3 further includes third low pressure relief valve 33, and third proportional reversing valve 35 is connected to propulsion oil
Between the oil inlet of cylinder 9 and the oil inlet of third low pressure relief valve 33.
It when the rotation of starting rock drill 10 and promotes, is first into orifice pattern, rock drill 10 is pushed ahead at this time, is promoted
Pressure is controlled by third low pressure relief valve 33, and when the drill bit of rock drill 10 is close to scar, propelling pressure is increased to reach
The setting pressure of three low pressure relief valves 33；The pressure of the load feedback mouth of variable pump 7 reaches the first low pressure relief valve 12 simultaneously
Pressure is set, rock drill 10 then starts low impact；Meanwhile rotational pressure increases and stablizes in aperture rotational pressure.So as to
Under the restriction effect of first low pressure relief valve 12 and third low pressure relief valve 33, by propelling pressure, rotational pressure and surge
It is stable be suitble to orifice pattern in the range of.
Shown in Figure 2 in the optinal plan of the present embodiment, impulsive control module 1 further includes the first high-pressure overflow valve 11,
First high-pressure overflow valve 11 is connected between fuel tank and another oil outlet of the first proportional reversing valve 14；
Propelling pressure control module 3 further includes third high-pressure overflow valve 32, the oil inlet connection of third high-pressure overflow valve 32
Between the oil inlet and third proportional reversing valve 35 of propelling cylinder 9, the overflow port of third high-pressure overflow valve 32 is connected to fuel tank；
Propelling pressure control module 3 further includes solenoid directional control valve 3 34, and solenoid directional control valve 3 34 is connected to third high pressure and overflows
It flows between valve 32 and third low pressure relief valve 33, is overflow with being connected to or cutting off oil inlet and the third low pressure of third high-pressure overflow valve 32
Flow the oil inlet of valve 33；
Anti-sticking pricker hydraulic control system further includes second pressure sensor 4, and second pressure sensor 4 is for measuring rotation horse
Up to 5 rotational pressure, solenoid directional control valve 3 34 is electrically connected with second pressure sensor 4.
When the rotational pressure that second pressure sensor 4 measures rotation motor 5 reaches in aperture unit, solenoid directional control valve 3 34
Must be electric, solenoid directional control valve 3 34 disconnects between the oil inlet of third high-pressure overflow valve 32 and the oil inlet of third low pressure relief valve 33
Connection relationship, i.e., disconnection third low pressure relief valve 33 and the oil inlet of propelling cylinder 9 between connection so that propelling cylinder 9
Propelling pressure controlled by third high-pressure overflow valve 32, which enters high push mode, at this point, first
Proportional reversing valve 14 commutates comprehensively under the action of propelling pressure, and the pressure of the load feedback mouth of variable pump 7 increases, and rushes
The setting pressure that pressure reaches the first high-pressure overflow valve 11 is hit, rock drill 10 just will start HI high impact, the anti-sticking pricker hydraulic control
System can be changed into normal drill mode from orifice pattern.Rotational pressure is stable in drilling rotational pressure therewith.
Pass through solenoid directional control valve 3 34, third high-pressure overflow valve 32, the first high-pressure overflow valve 11 and the first proportional reversing valve
The cooperative cooperating of 14 equal components realizes automatic adjusument and continuous change for surge, rotational pressure and propelling pressure
Change, is easily changed into normal drill mode from orifice pattern.
Wherein, under orifice pattern or normal drill mode, rotational pressure is caused to change if encountering formation variations
The case where, rock drilling Adaptive matching mode can be entered, to improve rock drill 10 to the adaptivity of different rock-layers, improve production effect
Rate.
Wherein, the first low pressure relief valve 12, the first high-pressure overflow valve 11, third high-pressure overflow valve 32, third low pressure spill
The setting pressure of valve 33 is determined by the normal range of operation of rock drill 10.Obviously, the setting pressure of the first high-pressure overflow valve 11
Higher than the setting pressure of the first low pressure relief valve 12, and the setting pressure of third high-pressure overflow valve 32 is higher than third low pressure relief valve
33 setting pressure.
Shown in Figure 3, in the optinal plan of the present embodiment, propelling pressure control module 3 further includes pressure-compensated valve 31
And check valve, pressure-compensated valve 31 are connected between fuel tank and guide proportion throttle valve 21；
The oil outlet of check valve is connected to the valve port of the close fuel tank of pressure-compensated valve 31, and the oil inlet of check valve is connected to
The valve port of the oil inlet of the close propelling cylinder 9 of pressure-compensated valve 31.
Pressure compensation is carried out by oil inlet of the pressure-compensated valve 31 to guide proportion throttle valve 21, so that guide proportion section
The steady state value that stream 21 front and back pressure difference of valve tends towards stability.
When in the related technology, preventing card pricker from starting, the scheme that propelling cylinder can be made to stop or return compares, and passes through ratio
Example reduce fltting speed mode can maximum raising rock penetration performance, and can effectively avoid because fltting speed it is too fast caused by
Bit deflection and the bit freezing situation that occurs.
Wherein, by the way that check valve is arranged, when propelling cylinder 9 is retracted, check valve is rodless cavity of the oil liquid from propelling cylinder 9
It flows back to fuel tank and provides access, if the oil liquid of reflux will be blocked in the oil outlet of pressure-compensated valve 31 without check valve.
In the optinal plan of the present embodiment, fltting speed control module 2 further includes two-position four way change valve 22, two-position four-way
The oil inlet of the control mouth connection rotation motor 5 of reversal valve 22, two-position four way change valve 22 can be according to the rotation of rotation motor 5
Pressure commutation promotes or retracts to control the cylinder rod of propelling cylinder 9；
The setting pressure of two-position four way change valve 22 is greater than the setting pressure of guide proportion throttle valve 21.
After being adjusted by throttling turndown mode, rotational pressure continues to increase, until reaching two-position four way change valve 22
When setting pressure, just illustrating that system has great bit freezing risk, the effect of rotational pressure makes to commutate in two-position four way change valve 22,
Propelling cylinder 9 retracts.After a period of time, after rotational pressure reduction, two-position four way change valve 22 will be reset to initially
Position, so that propelling cylinder 9 continues to promote, system is automatically into drill mode.
In the optinal plan of the present embodiment, anti-sticking pricker hydraulic control system further includes first pressure sensor 8, first pressure
Sensor 8 is used to measure the propelling pressure of propelling cylinder 9；
Impulsive control module 1 further includes solenoid directional control valve 1 and solenoid directional control valve 2 18, solenoid directional control valve 1 and electricity
Magnetic reversal valve 2 18 is electrically connected with first pressure sensor 8；
Solenoid directional control valve 1 can be connected to the load feedback mouth and first proportional reversing valve 14 of variable pump 7 before commutation
The load feedback mouth of variable pump 7 can be connected to the first low pressure relief valve 12 after commutation by oil inlet, solenoid directional control valve 1
Between the first proportional reversing valve 14；
Solenoid directional control valve 2 18 can be by the oil inlet of the control mouth of guide proportion throttle valve 21 and rotation motor 5 before commutation
Mouth is connected, and the control mouth of guide proportion throttle valve 21 can be connected to solenoid directional control valve after commutation by solenoid directional control valve 2 18
Between one 16 and the load feedback mouth of variable pump 7.
Under normal drill mode, when encountering solution cavity rock stratum, propelling pressure moment lowers, and first pressure sensor 8 is examined
The case where measuring propelling pressure wink drop, and solenoid directional control valve 1, solenoid directional control valve 2 18 and solenoid directional control valve 3 34 are fed back to,
Solenoid directional control valve 1 and solenoid directional control valve 2 18 obtain electric commutation simultaneously, and the load feedback mouth of variable pump 7 passes through solenoid directional control valve
One 16 the first low pressure relief valves 12 of connection, surge is controlled by the first low pressure relief valve 12, into low surge state.First
It leads proportional throttle valve 21 and passes through the load feedback mouth of 2 18 link variable of solenoid directional control valve pump 7, the valve of guide proportion throttle valve 21
Core aperture becomes smaller therewith, into low fltting speed state.3 34 power loss of solenoid directional control valve resets, the propelling pressure of propelling cylinder 9
It is controlled by third low pressure relief valve 33, into low propelling pressure state.That is, system enters low surge, low propelling pressure
With the operating status of low fltting speed, until rotational pressure is increased to stable state.
Similarly, system judges that rotational pressure is increased to stable state, and after drilling is normal, solenoid directional control valve 1, electromagnetism are changed
To the power loss commutation simultaneously of valve 2 18, the first proportional reversing valve 14 and the first low pressure relief valve 12 are accessed, while guide proportion throttles
Valve 21 restores to be controlled by the rotational pressure of rotation motor 5, i.e., the anti-sticking pricker hydraulic control system enters orifice pattern.Further
Ground, if orifice pattern plate top is normal, solenoid directional control valve 3 34 obtains electric commutation, and system is automatically into normal drill mode.
When needing replacing drilling tool, solenoid directional control valve 1, which is powered, to commutate, and rock drill 10 enters low impact conditions, can will connect
Female connector, drill bit shake loose, and help to improve the efficiency of replacement drilling tool.
In the optinal plan of the present embodiment, impulsive control module 1 further includes solenoid directional control valve 4 17 and pilot operated directional control valve 15,
Solenoid directional control valve 4 17 can be connected to the oil inlet and solenoid directional control valve 2 18 of rotation motor 5, solenoid directional control valve four before commutation
17 can be connected to solenoid directional control valve four and fuel tank after commutation, and the control mouth of two-position four way change valve 22 is connected to solenoid directional control valve
Between 4 17 and solenoid directional control valve 2 18.Anti-sticking pricker function can be started before commutating to solenoid directional control valve 4 17, in electromagnetic switch
Valve 4 17 can stop anti-sticking pricker function after commutating, to obtain electric or power loss by control solenoid directional control valve 4 17, can control anti-
Card pricker function starts or stops.
The load feedback mouth of the control mouth link variable pump 7 of pilot operated directional control valve 15, to be connected to or cut off fuel tank and the first ratio
The oil inlet of example reversal valve 14.
When 10 propelling pressure of rock drill does not reach the propelling pressure of orifice pattern, the spool of pilot operated directional control valve 15 is in
Preliminary examination state is connected to the oil inlet of fuel tank and the first proportional reversing valve 14, due to the pressure of the load feedback mouth of variable pump 7 at this time
Power is zero, and impact does not start.When entering rock drilling operation, the pressure rise of the load feedback mouth of variable pump 7 can be controlled hydraulic
Reversal valve commutation, i.e. connection relationship between hydraulicdirectional control valve cutting fuel tank and the oil inlet of the first proportional reversing valve 14, thus
Start impulsive control.The function is blank-run prevention function, and empty impact is avoided to improve chisel to the aging effects of 10 internal element of rock drill
The service life of rock machine 10.
In the optinal plan of the present embodiment, anti-sticking pricker control system further includes damping hole 6, and the bypass of variable pump 7 promotes oil
Between the oil inlet of cylinder 9 and the first proportional reversing valve 14 and between the oil inlet and third proportional reversing valve 35 of propelling cylinder 9
It is provided with damping hole 6.By the way that damping hole 6 is arranged, the fluctuation wave crest of system can be effectively eliminated, to make the anti-sticking pricker control
The pressure of system is more stable, to play the role of pressure stabilizing.
Optionally, damping hole 6 is provided between solenoid directional control valve 4 17 and rotation motor 5；Third proportional reversing valve 35
It is also provided at control mouth due to damping hole 6.
In the optinal plan of the present embodiment, variable pump 7 is load sensitive pump.The work that load sensitive pump can be needed in load
Make only to provide the necessary flow of maintenance system work under pressure, correct response is made in the variation for needing flow pressure.Namely
It says, can be directed to the card pricker risk of different rock-layers, load sensitive pump can provide the surge of consecutive variations to match difference
Operating condition can give full play to the characteristic advantage of load sensitive pump to prevent lock of tool drilling in advance, reduce overflow energy damage
It loses.
Optionally, variable pump 7 is to become discharge capacity plunger type load sensitive pump.
Optionally, the oil inlet of variable pump 7, the oil outlet of variable pump 7, the oil inlet of rotation motor 5, rotation motor 5
Oil outlet, the oil inlet of pressure-compensated valve 31, the oil outlet of check valve and two-position four way change valve 22 pass through one three respectively
Six electric change valves connection, so as to realize the relationship of oil inlet, oil return or interruption between above-mentioned component and fuel tank.
Embodiment two
Embodiment two provides a kind of rock drilling equipment, which includes the anti-sticking pricker hydraulic control system that embodiment one provides
It unites, the technical characteristic of anti-sticking pricker hydraulic control system disclosed in embodiment one is also applied for the embodiment, and embodiment one is public
The technical characteristic for the anti-sticking pricker hydraulic control system opened is not repeated to describe.
Existing equipment is roughly divided into all-hydraulic rock drilling equipment, electro-hydraulic rock drilling equipment and full-computerized rock drilling equipment three classes, cares for name
Think justice, the almost all of control element of all-hydraulic rock drilling equipment all uses pure hydraulic control component, and automation degree of equipment is low,
Hydraulic system is also relative complex, and the requirement to equipment user of service is high, and the realization of anti-sticking pricker is also to lean on pure HYDRAULIC CONTROL SYSTEM,
Anti-sticking pricker system is relatively easy, and advantage is that system is stablized, good reliability.
And the basic control element of full-computerized rock drilling equipment all uses electric-controlled hydraulic element, it is relatively simple for hydraulic system
Single very much, but the requirement to electric-control system is high, the logic function of rock drilling process is all realized by automatically controlled, and rock drilling is severe
Environment is carved to be affected to electric-control system, once there is electric fault, maintenance is also required to professional technician and carries out troubleshooting, and
And existing automatically controlled anti-sticking pricker technology is also immature, although electric-control system response is very fast, electric-control system reliability is poor.
To sum up, electro-hydraulic rock drilling equipment can preferably accommodate the advantages of all-hydraulic rock drilling equipment and full-computerized rock drilling equipment, because
And optionally, which is electro-hydraulic rock drilling equipment.Specifically, which is the drill jumbo of computer guiding.
Rock drilling equipment described in the present embodiment has the advantages that anti-sticking pricker hydraulic control system, embodiment described in embodiment one
The advantages of anti-sticking pricker hydraulic control system disclosed in one, is not repeated to describe herein.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other implementations
Certain features rather than other feature included by example, but the combination of the feature of different embodiments means in the present invention
Within the scope of and form different embodiments.For example, the one of any of embodiment claimed can be with any
Combination come using.The information disclosed in the background technology section is intended only to deepen to general background technology of the invention
Understanding, and it is known to those skilled in the art to be not construed as recognizing or imply that the information is constituted in any form
The prior art.
Claims (10)
1. a kind of anti-sticking pricker hydraulic control system is used for rock drilling equipment, which is characterized in that including impulsive control module, promote pressure
Power control module, fltting speed control module, variable pump, rotation motor and propelling cylinder；
The impulsive control module includes the first proportional reversing valve, and first proportional reversing valve is connected to the load of the variable pump
The pilot control opening of feedback port and fuel tank, first proportional reversing valve connects the oil inlet of the propelling cylinder；
The propelling pressure control module includes third proportional reversing valve, and the third proportional reversing valve is connected to the propelling cylinder
Oil inlet and the fuel tank, the pilot control opening of the third proportional reversing valve connects the oil inlet of the rotation motor；
The fltting speed control module includes guide proportion throttle valve, the guide proportion throttle valve be connected to the fuel tank with
Between the oil inlet of the propelling cylinder, the pilot control opening of the guide proportion throttle valve connects the oil inlet of the rotation motor
Mouthful.
2. anti-sticking pricker hydraulic control system according to claim 1, which is characterized in that the impulsive control module further includes
First low pressure relief valve, the overflow port of first low pressure relief valve are connected to the fuel tank, first low pressure relief valve into
Hydraulic fluid port is connected between the fuel tank and an oil outlet of first proportional reversing valve；
The propelling pressure control module further includes third low pressure relief valve, and the third proportional reversing valve is connected to the propulsion
Between the oil inlet of oil cylinder and the oil inlet of the third low pressure relief valve, the overflow port of the third low pressure relief valve is connected to institute
State fuel tank.
3. anti-sticking pricker hydraulic control system according to claim 2, which is characterized in that
The impulsive control module further includes the first high-pressure overflow valve, and first high-pressure overflow valve is connected to the fuel tank and institute
It states between another oil outlet of the first proportional reversing valve；
The propelling pressure control module further includes third high-pressure overflow valve, and the oil inlet of the third high-pressure overflow valve is connected to
Between the oil inlet of the propelling cylinder and the third proportional reversing valve, the overflow port of third high-pressure overflow valve is connected to the oil
Case；
The propelling pressure control module further includes solenoid directional control valve three, and the solenoid directional control valve three is connected to the third high pressure
Between overflow valve and the third low pressure relief valve, to be connected to or cut off the oil inlet and described the of the third high-pressure overflow valve
The oil inlet of three low pressure relief valves；
The anti-sticking pricker hydraulic control system further includes second pressure sensor, and the second pressure sensor is described for measuring
The rotational pressure of rotation motor, the solenoid directional control valve three are electrically connected with the second pressure sensor.
4. anti-sticking pricker hydraulic control system according to claim 2, which is characterized in that
The propelling pressure control module further includes pressure-compensated valve and check valve, the pressure-compensated valve and is connected to the oil
Between case and the guide proportion throttle valve；
The oil outlet of the check valve be connected to the pressure-compensated valve close to the fuel tank valve port, the check valve into
Hydraulic fluid port is connected to the valve port of the oil inlet close to the propelling cylinder of the pressure-compensated valve.
5. anti-sticking pricker hydraulic control system according to claim 4, which is characterized in that the fltting speed control module is also
Including two-position four way change valve, the control mouth of the two-position four way change valve connects the oil inlet of the rotation motor, and described two
Position and four-way reversing valve can according to the rotational pressure of the rotation motor commutate with control the propelling cylinder cylinder rod promote or
It retracts；
The setting pressure of the two-position four way change valve is greater than the setting pressure of the guide proportion throttle valve.
6. anti-sticking pricker hydraulic control system according to claim 5, which is characterized in that it further include first pressure sensor,
The first pressure sensor is used to measure the propelling pressure of the propelling cylinder；
The impulsive control module further includes solenoid directional control valve one and solenoid directional control valve two, the solenoid directional control valve one and the electricity
Magnetic reversal valve two is electrically connected with the first pressure sensor；
The solenoid directional control valve one can be connected to load feedback mouth and first ratio commutation of the variable pump before commutation
The load feedback mouth of the variable pump can be connected to described first after commutation by the oil inlet of valve, the solenoid directional control valve one
Between low pressure relief valve and first proportional reversing valve；
The solenoid directional control valve two can be by the control mouth of the guide proportion throttle valve and the rotation motor before commutation
Oil inlet is connected, and the control mouth of the guide proportion throttle valve can be connected to institute after commutation by the solenoid directional control valve two
It states between solenoid directional control valve one and the load feedback mouth of the variable pump.
7. anti-sticking pricker hydraulic control system according to claim 6, which is characterized in that
The impulsive control module further includes solenoid directional control valve four and pilot operated directional control valve, the energy before commutation of solenoid directional control valve four
It is enough connected to the oil inlet and the solenoid directional control valve two of the rotation motor, the solenoid directional control valve four can be connected to after commutation
The solenoid directional control valve two and the fuel tank, the control mouth of the two-position four way change valve be connected to the solenoid directional control valve four with
Between the solenoid directional control valve two；
The control mouth of the pilot operated directional control valve connects the load feedback mouth of the variable pump, to be connected to or cut off the fuel tank and institute
State the oil inlet of the first proportional reversing valve.
8. anti-sticking pricker hydraulic control system according to claim 1, which is characterized in that it further include damping hole, the variable
The bypass of pump, the propelling cylinder oil inlet and first proportional reversing valve between and the propelling cylinder oil inlet
The damping hole is provided between the third proportional reversing valve.
9. anti-sticking pricker hydraulic control system according to claim 1, which is characterized in that
The variable pump is load sensitive pump.
10. a kind of rock drilling equipment, which is characterized in that including anti-sticking pricker hydraulic control as claimed in any one of claims 1-9 wherein
System.
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| CN201910672103.5A CN110242628B (en) | 2019-07-24 | 2019-07-24 | Anti-seizing hydraulic control system and rock drilling equipment |
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| CN201910672103.5A CN110242628B (en) | 2019-07-24 | 2019-07-24 | Anti-seizing hydraulic control system and rock drilling equipment |
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| CN114321060A (en) * | 2021-12-15 | 2022-04-12 | 中铁工程装备集团有限公司 | Rock drilling automatic control valve group and control system |
| CN115559953A (en) * | 2022-10-20 | 2023-01-03 | 四川蓝海智能装备制造有限公司 | Anti-drill-rod-jamming hydraulic oil path structure of rock drill and hydraulic control method |
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| CN116025330B (en) * | 2022-12-14 | 2023-09-22 | 四川蓝海智能装备制造有限公司 | Electric control type rock drill hydraulic control structure and control method for preventing drill rod from being blocked |
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| CN110242628B (en) | 2024-05-17 |
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