CN104675774B - Hydraulic system of rock drilling machine - Google Patents
Hydraulic system of rock drilling machine Download PDFInfo
- Publication number
- CN104675774B CN104675774B CN201510114984.0A CN201510114984A CN104675774B CN 104675774 B CN104675774 B CN 104675774B CN 201510114984 A CN201510114984 A CN 201510114984A CN 104675774 B CN104675774 B CN 104675774B
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic
- oil
- pump
- control valve
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
- 239000011435 rock Substances 0.000 title claims abstract description 28
- 238000005553 drilling Methods 0.000 title abstract description 5
- 239000003921 oil Substances 0.000 claims abstract description 139
- 239000004575 stone Substances 0.000 claims abstract description 42
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 40
- 238000005183 dynamical system Methods 0.000 claims description 19
- 239000000446 fuel Substances 0.000 claims description 17
- 238000011010 flushing procedure Methods 0.000 claims description 13
- 238000005461 lubrication Methods 0.000 claims description 10
- 239000010687 lubricating oil Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 6
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000001050 lubricating effect Effects 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000004880 explosion Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 241000581613 Alchemilla arvensis Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000834 fixative Substances 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B1/00—Percussion drilling
-
- 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
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
-
- 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
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a hydraulic system of a rock drilling machine. The hydraulic system comprises a hydraulic oil tank I, an oil supply system, an oil return system, a rock breaking power system, a drill bit stretching and retracting system, a pneumatic stone removing system and a safe supporting system, wherein the rock breaking power system, the drill bit stretching and retracting system, the pneumatic stone removing system and the safe supporting system are respectively connected with the hydraulic oil tank I through the oil supply system and the oil return system and form respective hydraulic loops. Compared with the prior art, the hydraulic system has the beneficial effects that (1) a fan motor can reach the best working state, and the working efficiency is greatly improved; (2) a drill bit can be prevented from being broken by torque change in a feeding process; (3) the speed of the drill bit can be regulated in work, so that the operation range and the operation field are increased; (4) the safe supporting system is arranged, so that the safety of workers and equipment is guaranteed; (5), each loop is provided with a cooling device, so that the maintenance period and the service life of the equipment are prolonged; (6) a closed pump is provided with a lubricating system, so that the problems of cylinder stroke, cylinder explosion and the like caused when the pump is not used for a long time are avoided.
Description
Technical field
The present invention relates to hydraulic gate technical field, more particularly to one kind to be applicable not only to massif tunnel open-minded, also fit
In Large Oil well head open or underwater drilling operation rock drill hydraulic system.
Background technology
The shortcoming that generally existing efficiency is low, service life is short when hydraulic gate domestic at present is used, its relatively low property
It is low that valency ratio directly results in the market competitiveness, commonly uses hydraulic gate at present in addition and also has the following disadvantages：1) propulsive mechanism
Stroke range is little；2) fan removes the inefficient of stone；3) without cooling system, during work there is hoseline in high oil temperature
Deformation, when work stops recovering room temperature, interface become to loosen and can be thereafter work in cause oil leakage phenomenon, affect equipment
Normal operation；4) such as with maximal rate feeding during rock drilling, when running into rock anomaly and being hard, it is impossible to which speed governing in time comes
Change torque, cause bit force uneven, cause bit damage, because the cost of drill bit is higher, more bit change not only can shadow
Work efficiency is rung, economic loss is also result in；5) when rock drill digs cavern, such as the impact of rock decay, earthquake or flood
Rock is caused to loosen, it may appear that the situation that large area is caved in, and rock drill lacks in itself safety system, the life of operator
Life safety faces threat.
The content of the invention
The invention provides a kind of hydraulic system of rock drill, can expand the stroke range of rock drill propulsive mechanism, improve
The efficiency of hammer drill stone system, all loops are all provided with cooling system cooling, to improve equipment whole service life, realize in addition
The scalable feeding of drill bit, prevents drill bit accidental damage, and provides safety supports for equipment.
In order to achieve the above object, the present invention employs the following technical solutions realization：
A kind of hydraulic system of rock drill, including hydraulic oil container one, oil supply system, oil return system, broken stone dynamical system, brill
Head telescopic system, hammer drill stone system and safety supports system, the broken stone dynamical system, drill bit telescopic system, hammer drill stone
System and safety supports system connect hydraulic oil container one by oil supply system and oil return system respectively, and form respective hydraulic pressure time
Road.
The broken stone dynamical system and drill bit telescopic system share oil supply system one and oil return system one, oil supply system one by
Electromagnetic filter one, stop valve one and the composition of hydraulic pump one that the fuel feed pump drawn from hydraulic oil container one is sequentially connected, hydraulic pump
Overflow valve one is set on oil circuit after one；Oil return system one by the oil return pipe drawn from broken stone dynamical system and drill bit telescopic system according to
The temperature-sensing valve one of secondary connection, cooler one, check valve one and return filter composition.
The hammer drill stone system and safety supports system share oil supply system two and oil return system two, oil supply system two by
Electromagnetic filter two, stop valve two and the composition of hydraulic pump two that the fuel feed pump drawn from hydraulic oil container one is sequentially connected, hydraulic pump
Overflow valve two is set on oil circuit after two；Oil return system two by the oil return pipe drawn from hammer drill stone system and safety supports system according to
The temperature-sensing valve two of secondary connection, cooler two and check valve two are constituted.
The broken stone dynamical system is made up of oil cylinder one, hydraulic motor, two position three way directional control valve and balanced valve one, and is passed through
Three position four-way directional control valve one connects oil supply system one and oil return system one；Wherein the rodless cavity of oil cylinder one is commutated by two-position three way
Valve and check valve three connect a middle position actuator port of three position four-way directional control valve one；The rod chamber of oil cylinder one passes through check valve
4th, balanced valve one connects another middle position actuator port of three position four-way directional control valve one, by running of hydraulic power oil direction, balanced valve one
Hydraulic motor is parallel with loop afterwards；The push rod of oil cylinder one connects the speed governing mouth of hydraulic motor, hydraulic motor and two-position three way
The overfall of reversal valve is directly connected to hydraulic oil container one.
The balanced valve one is made up of overflow valve three, one-way throttle valve and check valve five, and overflow valve three is located at hydraulic motor
Oil return pipe on, its overfall connects all the way the oil inlet pipe of hydraulic motor by one-way throttle valve, separately leads up to check valve five
Oil return pipe before connection overflow valve three.
The drill bit telescopic system is by two groups of oil cylinder two, flow speed control valve one, flow speed control valve two, manual two position switching valve and balanced valve
Into, and oil supply system one and oil return system one are connected by three position four-way directional control valve two；Wherein the rodless cavity of oil cylinder two is by adjusting
Fast valve one, flow speed control valve two and balanced valve two connect a middle position actuator port of three position four-way directional control valve two, and flow speed control valve is in the lump
It is associated with manual two position switching valve；The rod chamber of oil cylinder two is directly connected to another middle position working oil of three position four-way directional control valve two
Mouthful；The oil inlet pipe of the rodless cavity one end of oil cylinder two is provided with pressure gauge one.
The balanced valve two is made up of overflow valve four and check valve six in parallel, and the overfall connection drill bit of overflow valve four is stretched
The oil return pipe of compression system.
The hammer drill stone system is made up of enclosed pump, filter, flushing valve and fan motor, is drawn from oil supply system two
Fuel feed pump connect slippage pump and variable pump in enclosed pump by the S mouths of enclosed pump, A, B mouth of enclosed pump is connected by flushing valve
Wind-receiving fan motor, is provided with filter between the G mouths and Fe mouths of enclosed pump, the T1 mouths of enclosed pump, flushing valve and fan motor overflow
Head piece connects respectively oil return system two.
The safety supports system includes two groups of parallel connections and respectively by three position four-way directional control valve three and 3-position 4-way commutation
Valve four connects the support component of oil supply system two and oil return system two, and every group of support component is made up of the hydraulic jack of 2 parallel connections,
And it is provided with hydraulic lock before hydraulic jack；The hydraulic circuit of two groups of support components is respectively connected to three position four-way directional control valve three and three four
The middle position actuator port of logical reversal valve four.
The enclosed pump connects in addition dynamic lubrication system, dynamic lubrication system by hydraulic oil container two, electromagnetic filter three,
Stop valve three, hydraulic pump three, temperature-sensing valve three, cooler three and overflow valve five are constituted, from hydraulic oil container two draw fuel feed pump according to
Connect enclosed pump after secondary connection electromagnetic filter three, stop valve three, hydraulic pump three, temperature-sensing valve three, cooler three and check valve seven
The lubricating oil inlet of power end, sets overflow valve five on the oil circuit after hydraulic pump three；The lubricating oil outlet connection at enclosed pump power end
Hydraulic oil container two, on the oil pipe before the lubricating oil inlet of enclosed pump power end pressure gauge two is set.
Compared with prior art, the invention has the beneficial effects as follows：
1) except stone fan motor and enclosed pump connect, fan motor oil-feed flow, and energy repairing in time are improve, makes fan
Motor can reach optimum Working, substantially increase work efficiency；
2) telescopic oil cylinder is set at drill bit, drill bit feed range is increased, can be prevented during feeding due to torque again
Changing makes broken drill, and expands the job area of equipment, further improves working performance；
3) variable hydraulic motor make drill bit operationally can speed governing, make rock drill be applicable not only to massif tunnel open-minded,
It is also suitable for Large Oil well head to open or underwater drilling operation, increased job area and field；
4) safety supports system is provided with, the crag of surrounding can be supported in operation, occur rock loosening at the scene
Safe space is left during emergency to workman, and strive for enough time reinforcing crag, it is ensured that the safety of personnel and equipment；
5) the whole each loop of hydraulic system is all provided with chiller, it is ensured that working line will not be because high-temperature expansion is deformed
Cause oil leak, the maintenance cycle and service life of extension device；
6) system enclosed pump is provided with lubricating system, it is to avoid cause the problems such as laying one's hand on cylinder, detonation because long-time is not used.
Description of the drawings
Fig. 1 is main hydraulic system schematic diagram of the present invention.
Fig. 2 is dynamic lubrication systematic schematic diagram of the present invention.
In figure：I. oil supply system 1. oil return system 1. oil supply system 2 IV. oil return system 2 V. broken stone is moved
Force system VI. drill bit telescopic system VII. hammer drill stone system VIII. safety supports system
1. the temperature-sensing valve of one 2. electromagnetic filter of hydraulic oil container, one 3. stop valve, one 4. hydraulic pump, one 5. overflow valve 1
The hydraulic pump two of one 7. cooler, one 8. check valve, one 9. return filter, 10. electromagnetic filter, 2 11. stop valve 2 12.
13. overflow valve, 2 14. temperature-sensing valve, 2 15. cooler, 2 16. check valve, 2 17. oil cylinder, one 18. hydraulic motor 19. 2
The overflow valve of 4 23. check valve of three-way diverter valve 20. balanced valve, one 21. three position four-way directional control valve, one 22. check valve 3 24.
3 25. one-way throttle valve, 26. check valve, 5 27. oil cylinder, 2 28. flow speed control valve 1 flow speed control valve 2 30. manual two change
To the check valve 6 36. of one 34. overflow valve of valve 31. balanced valve, 2 32. three position four-way directional control valve, 2 33. pressure gauge 4 35.
The liquid of 42. hydraulic jack of enclosed pump 37. filter, 38. flushing valve, 39. fan motor, 40. slippage pump, 41. variable pump 43.
The electromagnetic filter three of 4 46. hydraulic oil container of pressure lock 44. three position four-way directional control valve, 3 45. three position four-way directional control valve 2 47.
48. stop valve, 3 49. hydraulic pump, 3 50. overflow valve, 5 51. temperature-sensing valve, 3 52. cooler, 3 53. check valve 7 54. is pressed
The air filter of 2 55. liquidometer of power table 56.
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings：
See Fig. 1, be the main hydraulic system schematic diagram of the present invention, a kind of hydraulic system of rock drill of the invention, including hydraulic pressure
Fuel tank one 1, oil supply system, oil return system, broken stone dynamical system V, drill bit telescopic system VI, hammer drill stone system VII and safety
Support system VIII, VIII point of the broken stone dynamical system V, drill bit telescopic system VI, hammer drill stone system VII and safety supports system
Not Tong Guo oil supply system and oil return system connect hydraulic oil container 1, and form respective hydraulic circuit.
The broken stone dynamical system V and drill bit telescopic system VI share oil supply system 1 and oil return system 1, fuel feeding
Electromagnetic filter 1, stop valve 1 and hydraulic pump one that system 1 is sequentially connected by the fuel feed pump drawn from hydraulic oil container 1
4 compositions, set overflow valve 1 on the oil circuit after hydraulic pump 1；Oil return system 1 from broken stone dynamical system V and drill bit by stretching
Temperature-sensing valve 1, cooler 1, check valve 1 and the return filter 9 that the oil return pipe that system VI is drawn is sequentially connected is constituted.
The hammer drill stone system VII and safety supports system VIII share oil supply system 2 III and oil return system 2 IV, fuel feeding
Electromagnetic filter 2 10, stop valve 2 11 and hydraulic pressure that system 2 III is sequentially connected by the fuel feed pump drawn from hydraulic oil container 1
Pump 2 12 is constituted, and overflow valve 2 13 is set on the oil circuit after hydraulic pump 2 12；Oil return system 2 IV is by from the He of hammer drill stone system VII
Temperature-sensing valve 2 14, cooler 2 15 and the check valve 2 16 that the oil return pipe that safety supports system VIII is drawn is sequentially connected is constituted.
The broken stone dynamical system V is by oil cylinder 1, hydraulic motor 18, two position three way directional control valve 19 and balanced valve 1
Composition, and oil supply system 1 and oil return system 1 are connected by three position four-way directional control valve 1；Wherein oil cylinder 1 without bar
Chamber connects a middle position actuator port of three position four-way directional control valve 1 by two position three way directional control valve 19 and check valve 3 23；Oil
The rod chamber of cylinder 1 connects another middle position work of three position four-way directional control valve 1 by check valve 4 22, balanced valve 1
Hydraulic fluid port, by running of hydraulic power oil direction, is parallel with hydraulic motor 18 on the loop after balanced valve 1；The push rod connection of oil cylinder 1
The overfall of the speed governing mouth of hydraulic motor 18, hydraulic motor 18 and two position three way directional control valve 19 is directly connected to hydraulic oil container 1.
The balanced valve 1 is made up of overflow valve 3 24, one-way throttle valve 25 and check valve 5 26, and overflow valve 3 24 sets
On the oil return pipe of hydraulic motor 18, its overfall connects the oil inlet pipe of hydraulic motor 18 by the tunnel of one-way throttle valve 25 1, separately
Lead up to the oil return pipe before the connection overflow valve 3 24 of check valve 5 26.
The drill bit telescopic system VI is by oil cylinder 2 27, flow speed control valve 1, flow speed control valve 2 29, the manual and of two position switching valve 30
Balanced valve 2 31 is constituted, and connects oil supply system 1 and oil return system 1 by three position four-way directional control valve 2 32；Wherein oil cylinder
2 27 rodless cavity connects of three position four-way directional control valve 2 32 by flow speed control valve 1, flow speed control valve 2 29 and balanced valve 2 31
Middle position actuator port, and flow speed control valve 1 is parallel with manual two position switching valve 30；The rod chamber of oil cylinder 2 27 is directly connected to three
Another middle position actuator port of four-way change-over valve 2 32；The oil inlet pipe of the rodless cavity one end of oil cylinder 2 27 is provided with pressure gauge one
33。
The balanced valve 2 31 is made up of overflow valve 4 34 and check valve 6 35 in parallel, and the overfall of overflow valve 4 34 connects
Connect the oil return pipe of drill bit telescopic system VI.
The hammer drill stone system VII is made up of enclosed pump 36, filter 37, flushing valve 38 and fan motor 39, from fuel feeding
The fuel feed pump that system 2 III is drawn connects slippage pump 40 and variable pump 41 in enclosed pump 36, enclosed by the S mouths of enclosed pump 36
A, B mouth of pump 36 connects fan motor 39 by flushing valve 38, and between the G mouths and Fe mouths of enclosed pump 36 filter 37 is provided with, and closes
The overfall of the T1 mouths, flushing valve 38 and fan motor 39 of formula pump 36 connects respectively oil return system 2 IV.
The safety supports system VIII includes two groups of parallel connections and respectively by three position four-way directional control valve 3 44 and 3-position 4-way
Reversal valve 4 45 connects the support component of oil supply system 2 III and oil return system 2 IV, every group of support component by 2 parallel connections liquid
Compressing cylinder 42 is constituted, and hydraulic lock 43 is provided with before hydraulic jack 42；The hydraulic circuit of two groups of support components is respectively connected to three four
The middle position actuator port of logical reversal valve 3 44 and three position four-way directional control valve 4 45.
See Fig. 2, be dynamic lubrication systematic schematic diagram of the present invention.The enclosed pump 36 connects in addition dynamic lubrication system
System, dynamic lubrication system is by hydraulic oil container 2 46, electromagnetic filter 3 47, stop valve 3 48, hydraulic pump 3 49, temperature-sensing valve three
51st, cooler 3 52 and overflow valve 5 50 are constituted, and the fuel feed pump drawn from hydraulic oil container 2 46 is sequentially connected electromagnetic filter three
47th, the power of enclosed pump 36 is connected after stop valve 3 48, hydraulic pump 3 49, temperature-sensing valve 3 51, cooler 3 52 and check valve 7 53
The lubricating oil inlet at end, sets overflow valve 5 50 on the oil circuit after hydraulic pump 3 49；The lubricating oil outlet of the power end of enclosed pump 36 connects
Hydraulic oil container 2 46 is connect, on the oil pipe before the power end lubricating oil inlet of enclosed pump 36 pressure gauge 2 54 is set.
Three position four-way directional control valve 1, three position four-way directional control valve 2 32, the commutation of three position four-way directional control valve 3 44,3-position 4-way
Valve 4 45 is hand-operated direction valve.
Hydraulic oil container 1, hydraulic oil container 2 46 are equipped with liquidometer 55 and air filter 56.
Enclosed pump 36 and flushing valve 38 are commercially available prod, and concrete structure here is not added with repeating.
A kind of operation principle and the course of work of hydraulic system of rock drill of the present invention is as follows：
1) when breaking stone dynamical system V and start working, hydraulic oil from the inner extraction of hydraulic oil container 1, through electromagnetic filter one
2, stop valve 1 is reached, stop valve 1 is remained on before equipment startup, and the hydraulic oil being extracted in hydraulic pump 1 is reached
The oil-in of 3-position 4-way hand-operated direction valve 1, by 3-position 4-way hand-operated direction valve 1 left position is pushed into, and fluid passes through work
Hydraulic fluid port be transported to variable hydraulic motor 18 it is inner in, hydraulic motor 18 starts, and breaks stone dynamical system and starts working.At the same time, oil
Liquid comes two position three way directional control valve 19 through check valve 4 22, and two-position three way commutates 19 Vavle switchings to right position, and fluid is from oil cylinder one
17 rodless cavity oil-feed, push rod movement makes the oil-out of hydraulic motor 18 diminish, and the oil flow rate that goes out of hydraulic motor 18 is accelerated, motor
Rotating speed raise；In the same manner, when the rod chamber oil-feed of oil cylinder 17, the oil-out of hydraulic motor 18 becomes big, under the rotating speed of motor 18
Drop.
The hydraulic oil of the oil-out of hydraulic motor 18 check valve 5 26, overflow valve 3 24 and one-way throttle valve 25 through being made up of
Balanced valve 1, return to the oil return opening of three position four-way directional control valve 1, promote temperature-sensing valve 1, fluid through temperature-sensing valve 1,
Cooler 7, check valve 1 and return filter 9, return to hydraulic oil container 1.In the process motor 18 and two-position three way commutate
The fluid that valve 19 is revealed is returned directly to hydraulic oil container 1.The all overflow valves of system, the such as overflow valve 1 of the parallel connection of hydraulic pump 1,
It is provided to prevent that system pressure is excessive to play a part of overflow, it is ensured that system safety.
2) drill bit telescopic system VI is opened, and hydraulic pump 1 is also stretched while to break stone V fuel feeding of dynamical system for drill bit
The fuel feeding of compression system VI, while fluid reaches broken stone dynamical system three position four-way directional control valve 1, is also transported to three four
Logical reversal valve 2 32, three position four-way directional control valve 2 32 is switched to left position, and fluid reaches flow speed control valve 2 29 through balanced valve 2 31, such as
Fruit will complete to feed at a slow speed, then disconnect manual two position switching valve 30, and fluid falls can speed again through a flow speed control valve 1
Come, the speed that the oil cylinder two of feeding stretches out slows down, and completes a work and enters.Fluid from the outflow of the oil-out of oil cylinder two is through three
Four-way change-over valve 2 32, the temperature-sensing valve 1 opened, cooler 1, check valve 1 and return filter 9 return to hydraulic oil container one
1。
3) hammer drill stone hydraulic system VII is opened, and fluid is extracted out by hydraulic pump 2 12 from hydraulic oil container 1, through electromagnetism
Filter 2 10 is delivered directly to the s mouths of enclosed pump 36, and Jing s mouths are delivered directly to the slippage pump 40 in enclosed pump 36, enclosed
One filter 37 is set between the G mouths and Fe mouths of pump 36, the bits in fluid can be filtered, prevent pump from blocking.Slippage pump 40
Fluid be delivered directly to variable pump 41 in enclosed pump 36, and enter fan motor 39 through flushing valve 38, complete whole work
Make process.The fluid of backflow returns to liquid from the T1 mouths of enclosed pump 36 through temperature-sensing valve 2 14, cooler 2 15 and check valve 2 16
Force feed case 1.The fluid of flushing valve 38 and the shell of fan motor 39 residual returns to hydraulic oil container 1 also by oil return pipe.
Fan motor is driven with enclosed pump, makes fan motor be always maintained at constant output, it is ensured that work effect
Rate.
4) while hammer drill stone hydraulic system VII is opened, dynamic lubrication system is opened simultaneously, in hydraulic oil container 2 46
Fluid is transported to temperature-sensing valve 3 51 through electromagnetic filter 3 47 by hydraulic pump 3 49, and temperature-sensing valve 3 51 is opened, and fluid is through cold
But device 3 52 flows through hydraulic return fuel tank 2 46 behind enclosed pump power end, and for dynamical system lubrication is provided, it is ensured that work is smooth.
5) hydraulic circuit of safety supports system VIII also begins to start while equipment starts, and fluid is directly by hydraulic pump two
12 are extracted out from hydraulic oil container 1 by electromagnetic filter 2 10, and by stop valve 2 11 3-position 4-way manual reverse of direction is transported to
Valve 3 44 and 3-position 4-way hand-operated direction valve 45, two three position four-way directional control valves are opened simultaneously, and fluid is entered again by hydraulic lock 43
Enter the rodless cavity of 4 hydraulic jacks 42, the push rod of hydraulic jack 42 drives 4 supporting legs on fixative cylinder pressure to stretch simultaneously
Go out, complete entirely to support process.Hydraulic lock 43 can ensure that supporting leg will not withdraw after stretching out, and four walls be propped up securely, it is ensured that apply
The safety at work scene.
Claims (9)
1. a kind of hydraulic system of rock drill, it is characterised in that move including hydraulic oil container one, oil supply system, oil return system, broken stone
Force system, drill bit telescopic system, hammer drill stone system and safety supports system, the broken stone dynamical system, drill bit telescopic system,
Hammer drill stone system and safety supports system connect hydraulic oil container one by oil supply system and oil return system respectively, and form respective
Hydraulic circuit；The broken stone dynamical system is made up of oil cylinder one, hydraulic motor, two position three way directional control valve and balanced valve one, and
Oil supply system one and oil return system one are connected by three position four-way directional control valve one；Wherein the rodless cavity of oil cylinder one passes through two-position three way
Reversal valve and check valve three connect a middle position actuator port of three position four-way directional control valve one；The rod chamber of oil cylinder one is by unidirectional
Valve four, balanced valve one connect another middle position actuator port of three position four-way directional control valve one, by running of hydraulic power oil direction, balanced valve
Hydraulic motor is parallel with loop after one；The push rod of oil cylinder one connects the speed governing mouth of hydraulic motor, hydraulic motor and two three
The overfall of logical reversal valve is directly connected to hydraulic oil container one.
2. the hydraulic system of a kind of rock drill according to claim 1, it is characterised in that the broken stone dynamical system and brill
Head telescopic system shares oil supply system one and oil return system one, oil supply system one by the fuel feed pump drawn from hydraulic oil container one successively
The electromagnetic filter one of connection, stop valve one and hydraulic pump one are constituted, and overflow valve one is set on the oil circuit after hydraulic pump one；Oil return system
Unified temperature-sensing valve one, cooler one, the list being sequentially connected by the oil return pipe drawn from broken stone dynamical system and drill bit telescopic system
Constitute to valve one and return filter.
3. the hydraulic system of a kind of rock drill according to claim 1, it is characterised in that the hammer drill stone system and peace
Full support system shares oil supply system two and oil return system two, oil supply system two by the fuel feed pump drawn from hydraulic oil container one successively
The electromagnetic filter two of connection, stop valve two and hydraulic pump two are constituted, and overflow valve two is set on the oil circuit after hydraulic pump two；Oil return system
Temperature-sensing valve two, cooler two and list that system two is sequentially connected by the oil return pipe drawn from hammer drill stone system and safety supports system
Constitute to valve two.
4. the hydraulic system of a kind of rock drill according to claim 1, it is characterised in that the balanced valve one is by overflow valve
3rd, one-way throttle valve and check valve five are constituted, and overflow valve three is located on the oil return pipe of hydraulic motor, and its overfall is by unidirectional section
Stream valve connects all the way the oil inlet pipe of hydraulic motor, separately leads up to the oil return pipe before the connection overflow valve three of check valve five.
5. the hydraulic system of a kind of rock drill according to claim 2, it is characterised in that the drill bit telescopic system is by oil
Cylinder two, flow speed control valve one, flow speed control valve two, manual two position switching valve and balanced valve two are constituted, and are connected by three position four-way directional control valve two
Connect oil supply system one and oil return system one；Wherein the rodless cavity of oil cylinder two is connected by flow speed control valve one, flow speed control valve two and balanced valve two
A middle position actuator port of three position four-way directional control valve two is connect, and flow speed control valve one is parallel with manual two position switching valve；Oil cylinder two
Rod chamber is directly connected to another middle position actuator port of three position four-way directional control valve two；On the oil inlet pipe of the rodless cavity one end of oil cylinder two
It is provided with pressure gauge one.
6. the hydraulic system of a kind of rock drill according to claim 5, it is characterised in that the balanced valve two is by parallel
Overflow valve four and check valve six are constituted, and the overfall of overflow valve four connects the oil return pipe of drill bit telescopic system.
7. the hydraulic system of a kind of rock drill according to claim 3, it is characterised in that the hammer drill stone system is by closing
Formula pump, filter, flushing valve and fan motor composition, the fuel feed pump drawn from oil supply system two is connected by the S mouths of enclosed pump
Slippage pump and variable pump in enclosed pump, A, B mouth of enclosed pump connects fan motor, the G mouths of enclosed pump and Fe by flushing valve
Filter is provided between mouthful, the overfall of the T1 mouths, flushing valve and fan motor of enclosed pump connects respectively oil return system two.
8. the hydraulic system of a kind of rock drill according to claim 3, it is characterised in that the safety supports system includes
Two groups in parallel and by three position four-way directional control valve three and three position four-way directional control valve four connect oil supply system two and oil return system respectively
Two support component, every group of support component is made up of the hydraulic jack of 2 parallel connections, and hydraulic lock is provided with before hydraulic jack；Two groups
The hydraulic circuit of support component is respectively connected to the middle position actuator port of three position four-way directional control valve three and three position four-way directional control valve four.
9. the hydraulic system of a kind of rock drill according to claim 7, it is characterised in that in addition connection is dynamic for the enclosed pump
Hydrodynamic lubrication system, dynamic lubrication system by hydraulic oil container two, electromagnetic filter three, stop valve three, hydraulic pump three, temperature-sensing valve three,
Cooler three and overflow valve five are constituted, from hydraulic oil container two draw fuel feed pump be sequentially connected electromagnetic filter three, stop valve three,
Connect the lubricating oil inlet at enclosed pump power end after hydraulic pump three, temperature-sensing valve three, cooler three and check valve seven, after hydraulic pump three
Oil circuit on set overflow valve five；The lubricating oil outlet connection hydraulic oil container two at enclosed pump power end, enclosed pump power end lubricating oil
Pressure gauge two is set on oil pipe before entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510114984.0A CN104675774B (en) | 2015-03-13 | 2015-03-13 | Hydraulic system of rock drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510114984.0A CN104675774B (en) | 2015-03-13 | 2015-03-13 | Hydraulic system of rock drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104675774A CN104675774A (en) | 2015-06-03 |
| CN104675774B true CN104675774B (en) | 2017-04-19 |
Family
ID=53311237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510114984.0A Expired - Fee Related CN104675774B (en) | 2015-03-13 | 2015-03-13 | Hydraulic system of rock drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104675774B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6738782B2 (en) * | 2017-09-14 | 2020-08-12 | 日立建機株式会社 | Drive for construction machinery |
| CN107725538A (en) * | 2017-11-15 | 2018-02-23 | 恒天九五重工有限公司 | The radiator oil return control system and its control method of oil cylinder |
| CN107893626A (en) * | 2017-12-20 | 2018-04-10 | 山东天瑞重工有限公司 | A kind of closed hydraulic drill work system |
| CN108678689A (en) * | 2018-04-23 | 2018-10-19 | 廖恒伟 | A kind of oil-well rig hydraulic hoisting machine host |
| CN113210952B (en) * | 2021-06-08 | 2022-04-22 | 湘潭大学 | Cold source acquisition system for welding |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE420057B (en) * | 1980-02-20 | 1981-09-14 | Atlas Copco Ab | HYDRAULIC SHIPPING WITH POSSIBILITY TO REGULATE SHOCK ENERGY |
| SE515204C2 (en) * | 1999-11-03 | 2001-06-25 | Atlas Copco Rock Drills Ab | Method and apparatus for controlling a rock drill |
| FR2802970B1 (en) * | 1999-12-23 | 2002-03-08 | Montabert Ets | HYDRAULIC SUPPLY DEVICE FOR A ROTARY-PERCUTANT DRILLING APPARATUS |
| CN201225153Y (en) * | 2008-04-22 | 2009-04-22 | 闫振东 | Rock lane digging and supporting construction drill |
| CN201714390U (en) * | 2010-05-31 | 2011-01-19 | 三一重型装备有限公司 | Hard rock hydraulic crushing type boring machine |
| CN102913130B (en) * | 2012-11-21 | 2013-08-28 | 丁佑民 | Full-hydraulic rock-drilling excavator using hydraulic excavator for production |
| CN103410442A (en) * | 2013-08-26 | 2013-11-27 | 中煤科工集团重庆研究院 | Full hydraulic crawler-type drilling machine with high rotation speed for coal mines |
| CN204646830U (en) * | 2015-03-13 | 2015-09-16 | 辽宁瑞丰专用车制造有限公司 | A kind of hydraulic system of rock drill |
-
2015
- 2015-03-13 CN CN201510114984.0A patent/CN104675774B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104675774A (en) | 2015-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104675774B (en) | Hydraulic system of rock drilling machine | |
| CN204646830U (en) | A kind of hydraulic system of rock drill | |
| CN202249733U (en) | Hydraulic device of drill | |
| CN202971363U (en) | Full-hydraulic underground drill rig hydraulic control system for mine | |
| CN104047912B (en) | The digital pump controlled hydraulic differential cylinder in self-powered source | |
| CN104452850B (en) | Method and its control device that a kind of excavator swing arm potential energy is recycled | |
| WO2023020340A1 (en) | Integrated control valve, automatic rod-unloading-tong hydraulic system of rotary drilling rig, and rod-unloading tong | |
| CN109281874A (en) | A kind of the major loop Load Relief System and pile press machine of guide's hydraulic control | |
| EP2853755B1 (en) | Energy recycling system for working device | |
| CN206329561U (en) | mine hydraulic bracket control system | |
| CN206530358U (en) | A kind of mine hydraulic bracket multistage speed control system | |
| CN107628217A (en) | Gondola turns round fluid power system | |
| CN205953386U (en) | Dig rig hoist actuating system soon | |
| CN205955669U (en) | Drill pipe tong's lift, automatic interlock control device of removal | |
| CN211039203U (en) | Multi-way reversing valve of multifunctional tunnel drilling machine | |
| CN205918969U (en) | Gear pump control formula electro -hydraulic linkage actuating mechanism | |
| CN108150643A (en) | A kind of shift valve block, power head multi gear level controlling system and control method and rotary drilling rig | |
| CN207961116U (en) | A kind of blank-run prevention hydraulic system of top hammer drilling machine | |
| CN204200727U (en) | Hydraulic speed regulation loop system of axial plunger variable displacement motor | |
| CN116398619A (en) | Gear shifting cooling system and method for double-speed reducer of rotary drilling rig | |
| CN207093479U (en) | A kind of hydraulic shear cylinder control system and hydraulic shear | |
| CN213541473U (en) | Full-automatic hydraulic reversing device | |
| CN204716676U (en) | Hydraulic power system | |
| CN102296664B (en) | Hydraulic driving device of excavator | |
| CN205991041U (en) | A kind of horizontal movement control system of rock drill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20180313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |