CN105864129B - Automatically split stone machine - Google Patents
Automatically split stone machine Download PDFInfo
- Publication number
- CN105864129B CN105864129B CN201610367767.7A CN201610367767A CN105864129B CN 105864129 B CN105864129 B CN 105864129B CN 201610367767 A CN201610367767 A CN 201610367767A CN 105864129 B CN105864129 B CN 105864129B
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- stone
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- 239000004575 stone Substances 0.000 title claims abstract description 72
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 230000008602 contraction Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 42
- 239000010959 steel Substances 0.000 claims description 42
- 238000007789 sealing Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 11
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 230000037237 body shape Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 26
- 239000011435 rock Substances 0.000 description 14
- 210000000664 rectum Anatomy 0.000 description 6
- 230000003139 buffering effect Effects 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 238000004880 explosion Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 206010034703 Perseveration Diseases 0.000 description 1
- 206010037660 Pyrexia Diseases 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002689 soil Substances 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
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/08—Devices with pistons, plungers, or the like, pressed locally against the wall of the borehole
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
-
- 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
- F15B13/16—Special measures for feedback, e.g. by a follow-up device
-
- 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
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/082—Characterised by the construction of the motor unit the motor being of the slotted cylinder type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fluid-Pressure Circuits (AREA)
- Check Valves (AREA)
Abstract
The invention discloses a kind of simple in construction,It is easy to control,Operating efficiency is higher,It is more preferable to split stone effect,Continuity is stronger,It is and pollution-free,It is noiseless,And the control of relief valve more convenient full-automatic splits stone machine,It includes hydraulic station,It is several to split stone rod,Hydraulic tube,Check valve and relief valve,Connected between hydraulic station and check valve by hydraulic tube,Check valve is connected between stone rod with each described split by hydraulic tube,Exported with realizing the fluid in hydraulic station to stone rod one direction is respectively split,Respectively split and connected between stone rod and relief valve by hydraulic tube,Connected between relief valve and hydraulic station by two hydraulic tubes,Each stone rod that splits is during ejection,The relief valve is in closed mode,Each stone rod that splits is during contraction,A wherein hydraulic tube realizes the unlatching of the fluid control relief valve in hydraulic station,An other hydraulic tube realizes that the fluid respectively split in stone rod is back to hydraulic station.
Description
Technical field
The present invention relates to one kind, it particularly relates to a kind of simple in construction, easy to control, operating efficiency is higher, splits stone effect
Fruit is more preferable, and continuity is stronger, and pollution-free, noiseless, and the control of relief valve more convenient full-automatic splits stone machine.
Background technology
It is the new construction equipment that rock splits off from big ground to split stone equipment, and at present, most of construction uses
Non- blasting construction method, i.e., using warding off, stone implement, swelling agent, broken kind equipment (such as quartering hammer), hook machine, rope are sawed, disk is sawed, flame
Cutting and Water Cutting equipment operation.
Rope saw, disk saw, gas flame cuttiug, Water Cutting belong to face processing form of construction work, it is necessary to cut whole section on rock,
Efficiency is very low, and energy consumption is big, and disk saws disposable less investment, in many small-scale, soft rockmass (uniaxial compressive strength is not more than 50MPa)
Construction site is relatively adapted to；Rope saw uses diamond, and use cost is expensive, is usually used in being worth higher stone material cutting.As for
Gas flame cuttiug and Water Cutting, depth of cut is all little, and it is expensive, energy consumption is big, inefficient, in the construction of common rocks
It is upper, substantially without using.
Point processing class method (method that need not be processed rock using face is separated from the earth), there are four kinds of ratios at present
More typically, it is specific as follows：Swelling agent, disposable input cost is low, but construction interval most needs could complete one half a day soon every time
It is secondary, it is inefficient, and influenceed by weather and ground environment greatly, due to being using lime as primary raw material, to easily cause Soil Surrounding
Alkalization, as thermal expansion agent, the non-explosion class edge for making to walk can produce explosion effect, and certain earthquake intensity is not so good as explosive, but not
Belong to non-explosion class method；Stone implement is warded off, this equipment is numerous in China's manufacturer, but because power is small, wedge is a consumable accessory,
Too high pressure can not be not only born, construction cost height is also resulted in, is used for the twice decomposition of rock, also has for rock once
Property excavate, but efficiency and construction cost can not show a candle to split stone machine, and the disposable excavation market of rock uses warding off stone implement and few；Hook
Machine, it is a kind of good rock splitter, particularly suitable for the construction field that crack is a lot, globality is poor, rock is softer
Institute, simply disposable input cost is too high, in the occasion that crack is less, hardness is high, it is virtually impossible to use；Broken kind equipment most allusion quotation
Type be exactly excavator quartering hammer, as hook machine, to hard rock and the preferable rock of globality, efficiency of construction is differential, but by
It is still that rock disposably excavates most widely used equipment at present in a kind of its equipment flexibly, easy and most commonly seen,
Cost is exactly that low efficiency, high energy consumption, construction cost are big.
In hydraulic tool field, at present at home using superhigh pressure technique than wide, but its check valve is all integrated in
On gas drive liquid pump, and through-current capacity is small, because flow during its low pressure is not over 5 liters/min, when pressure is higher than 100MPa
When, its flow is substantially all below 1 liter/min, so the latus rectum very little of check valve, for small latus rectum valve (4mm latus rectums and with
Under), it is easily done super-pressure, and 200MPa, the check valve of 6 latus rectums, it is sealed, longer seat life, and it is difficult to overcome to be
Difficulty.In addition, hydraulic pressure super-pressure (100MPa and more than) element of big flow fails to break through at present, main asking of facing at present
Topic is material and Heat-treatment Problem, and under 100MPa and above superelevation pressure condition, material can deform, then high size and position essence
Degree, before deformation plance, can not all keep, and the corresponding precision-fit of Hydraulic Elements is not to be killed, and exactly occur sealing and the life-span
Problem.
In normal pressures (under 50MPa) Hydraulic Field, we have been generally acknowledged that hydraulic oil is incompressible, but with pressure
The increase of power, when particularly pressure reaches 200MPa, hydraulic oil can have more than more than 10% decrement, when surpassing for hydraulic system
During the direct pressure release of high pressure, because pressure difference is too big, the fluid that this part is compressed can be released with high flow velocity, not only can be to valve
Part produces erosion, also allows fluid to produce gasification phenomenon, and in fluid a large amount of bubbles increase, always have a small number of bubbles and enter and pressurize
Circulation, formation miniature one by one " bomb " is simultaneously quick-fried by pressure in hydraulic system, and destruction is produced to extra high voltage system.This phenomenon,
It is especially prominent in the incipient stage of pressure release, it is the problem that hydraulic pressure super-pressure application field is extremely had a headache, in order to avoid this is asked
Topic, generally require to apply super-pressure back pressure on leakage passage, not only increase cost, also allow draining time lengthening, surpass in hydraulic pressure
High pressure field, the ultra-high pressure solenoid valve that can be bought in the market, maximum normal working pressure can only achieve 70MPa, when
During higher pressure, without corresponding solenoid directional control valve product, 70MPa hydraulic pressure extra high voltage system realizes that automation is extremely difficult, special
It is not the hydraulic pressure extra high voltage system for having gone up more than 100MPa, can not be realized automatically control with conventional hydraulic loop means at present.
The content of the invention
Deficiency for more than, the invention provides a kind of simple in construction, easy to control, operating efficiency is higher, splits stone effect
Fruit is more preferable, and continuity is stronger, and pollution-free, noiseless, and relief valve control it is more convenient it is full-automatic split stone machine, it
Including hydraulic station, it is at least one split stone rod, hydraulic tube, check valve and relief valve, pass through liquid between the hydraulic station and check valve
Pressure pipe is connected, and check valve is connected between stone rod with each described split by hydraulic tube, to realize the fluid in hydraulic station to respectively splitting
Stone rod one direction exports, and respectively splits and is connected between stone rod and relief valve by hydraulic tube, passes through two between relief valve and hydraulic station
Hydraulic tube connects, and each stone rod that splits is during ejection, and the relief valve is in closed mode, each mistake for splitting stone rod in contraction
Cheng Zhong, wherein a hydraulic tube realizes the unlatching of the fluid control relief valve in hydraulic station, a hydraulic tube, which is realized, in addition respectively splits
Fluid in stone rod is back to hydraulic station.
In order to further realize the present invention, the relief valve includes the second valve body, the second check valve, pressure release piston body and let out
Bear down on one bar, and the centre of second valve body is located at formed with interconnected the second cavity volume and the 3rd cavity volume, second cavity volume
The underface of 3rd cavity volume, the bottom of the second valve body are provided with the second entrance being connected with the second cavity volume, the second entrance
It is communicated to by hydraulic tube and splits stone rod, the top of the second valve body is provided with the pressure relief opening being connected with the 3rd cavity volume, and pressure relief opening leads to
Cross hydraulic tube and be communicated to hydraulic station；The side wall of second valve body is provided with the second outlet being connected with the 3rd cavity volume, second outlet
Hydraulic station is communicated to by hydraulic tube；Second check valve is fixedly mounted in the second cavity volume, and the second check valve and second holds
Seal and coordinate between chamber, the input of the second check valve is connected with second entrance, and the output end of the second check valve is held with the 3rd
Chamber is connected；The pressure release piston body is slidably installed in the 3rd cavity volume, and can be slided up and down along the 3rd cavity volume, pressure release piston body with
It is sealed set between second valve body；The pressure release push rod is in longitudinally disposed, and the top of pressure release push rod is fixedly connected with pressure release piston
Body, the bottom for the bar that bears down on one can be extend into the second check valve, and pressure release push rod can slowly jack up the occluding body of the second check valve upwards.
In order to further realize the present invention, the bottom of the pressure release push rod is provided with the closure shape with the second check valve
The supporting part of adaptation.
In order to further realize the present invention, second check valve include the 3rd valve body, second spring seat, second spring and
Second plugging steel ball, the 3rd valve body are fixedly mounted in the second cavity volume, set between the 3rd valve body and the second valve body for sealing
Put, the centre of the 3rd valve body is provided with the 3rd to be connected with the 4th cavity volume and gone out formed with the 4th cavity volume, the top of the 3rd valve body
Mouthful, the 3rd outlet connects with the 3rd cavity volume, and the 3rd outlet and the link position of the 4th cavity volume are provided with the second closure part, the
The bottom of three valve bodies is provided with least one 3rd entrance being connected respectively with the 4th cavity volume, and all 3rd entrances are respectively with
Two entrances are connected, and the second spring seat is arranged on the position for corresponding to the 3rd outlet in the 4th cavity volume, the second spring
On second spring seat, second plugging steel ball is arranged between the 3rd outlet and second spring as occluding body,
To cause the second plugging steel ball tight against firmly the second closure part, to coordinate between the second plugging steel ball and the second closure part for sealing.
In order to further realize the present invention, second plugging steel ball is spheroid, and second closure part is the one of spheroid
Part.
In order to further realize the present invention, the quantity of the 3rd entrance is multiple, and all 3rd entrances are in annular shape etc.
It is spaced apart.
In order to further realize the present invention, the stone rod that splits includes cylinder body, and at least one set of cylinder cap, piston body and piston
Bar, inflow pipeline, oil returning tube and at least one piston groove are provided with the cylinder body, and piston groove one end closing is another
End is set in opening, and all cylinder caps are separately positioned on the openend of corresponding piston groove, and slide opening, cylinder cap and work are provided with cylinder cap
Sealed set between a plug slot, all piston bodies are slidably installed in corresponding piston groove respectively, sealed set between piston body and piston groove,
One end of all piston rods is respectively fixedly connected with each piston body, and the other end is respectively sleeved in the slide opening of corresponding piston groove, and can
The slide opening of corresponding piston groove is stretched out, sealed set between piston rod and the slide opening of piston groove, the outer end of the inflow pipeline (enters oil
Mouthful) the corresponding flowline of distributor is communicated to by hydraulic tube, the inner of inflow pipeline is located at the corresponding rodless cavity of piston groove
Position, the inner of the oil returning tube are located at the position of the corresponding rod chamber of piston groove, and the outer end of oil returning tube passes through hydraulic tube
It is communicated to relief valve.
In order to further realize the present invention, the quantity of the piston groove is multiple, between all piston grooves in waiting from top to bottom
Every distribution.
In order to further realize the present invention, the check valve includes the first valve body, the first spring base, the first spring and first
Plugging steel ball, formed with the first cavity volume, the top of the first valve body is provided with to be connected with the first cavity volume for the centre of first valve body
Logical first entrance, the first entrance are communicated to hydraulic station, first entrance and the link position of the first cavity volume by hydraulic tube
The first closure part is provided with, the bottom of the first valve body is provided with least one first outlet being connected respectively with the first cavity volume,
All first outlets are communicated to distributor by hydraulic tube, and first spring base is arranged in the first cavity volume to enter corresponding to first
Mouthful position, first spring is arranged on the first spring base, and first plugging steel ball is arranged on first entrance and the
Between one spring, to cause the first plugging steel ball tight against firmly the first closure part, to be between the first plugging steel ball and the first closure part
Sealing coordinates.
In order to further realize the present invention, first plugging steel ball is spheroid, and first closure part is the one of spheroid
Part.
Beneficial effects of the present invention：
1st, the stone machine that splits of the invention is the new construction equipment that rock splits off from big ground, utilizes the original of hydraulic cylinder
Reason opens division object top, simple to operate, easy for construction, and performs machine by hydraulic pressure completely without any vibrations and noise during construction
Rock capping will slowly be belonged to environment fanout free region, the non-disposable excavation construction kind equipment of explosion by structure.
2nd, the fluid that the present invention is exported by another branch road between relief valve and hydraulic station realizes opening for relief valve
Open and close, the control of relief valve is more convenient, it is possible to achieve Automatic Control (control panel), without behaviour manually
Make.
3rd, check valve of the invention uses plug-in type hydraulic pressure super-pressure check valve, can solve the hydraulic pressure within 200MPa pressure
Oily one-way flow demand, its metered flow can reach 30 liters/min, and now droop loss is no more than 2MPa, that is to say, that it is pressed
Drop solves the problems, such as many hydraulic pressure ultra-high pressure high flow one-way flows no more than the 1% of rated operating pressure；In addition, we make
The hard sealing means of super-pressure, the structure of valve and sealing is allowed to become more simple and reliable.
4th, relief valve of the invention uses buffering hydraulic super-pressure hydraulic control check valve, opens and closes buffering hydraulic super-pressure hydraulic control list
To the reverse open function of valve, it can greatly mitigate erosion phenomenon of the super-pressure fluid to valve and gasification phenomenon；In addition, open and close slow
Fliud flushing presses the reverse open function of super-pressure hydraulic control check valve, and for control chamber it is desirable that low pressure, and under lower pressure, we are complete
Ripe automated control technology all can be used, so as to by the function of current most 70~200MPa hydraulic pressure super-pressure application fields
Lifted and controlled and be perfect；Further, used keying buffering hydraulic super-pressure hydraulic control check valve, allow split stone machine split it is direct when stone is retracted
Pressure release, efficiency (being reduced to 90 seconds by original 10 minutes) is not only greatly improved, it is gentle also to solve troubling erosion
Change phenomenon, more important is allowing fever phenomenon caused by original pipeline damping to be solved, (changing machine needs 20 meters long
Flexible pipe, and the flexible pipe of so high pressure only has external import, and there is no big orifice sebific duct, latus rectum only has 4.7 millimeters, but flexible pipe
Need frequently to move, quantity can not be too much)
Brief description of the drawings
Fig. 1 is the full-automatic structural representation for splitting stone machine of the present invention；
Fig. 2 is the structural representation for splitting stone rod of the present invention；
Fig. 3 is the structural representation of the distributor of the present invention；
Fig. 4 is the structural representation of the check valve of the present invention；
Fig. 5 is the structural representation of the relief valve of the present invention.
Embodiment
The present invention is further elaborated below in conjunction with the accompanying drawings, wherein, direction of the invention is using Fig. 1 as standard.
As illustrated in fig. 1 and 2, the full-automatic stone machine that splits of the invention splits stone rod 3, hydraulic pressure including hydraulic station 1,2, four, distributor
Pipe 4, check valve 5 and relief valve 6,1 one of branch road of hydraulic station output high-voltage oil liquid, high-voltage oil liquid is through the one direction of check valve 5
Inflow distributor 2 in, distributor 2 again splits fluid isobaric injection four in stone rod 3 (rodless cavity), so as to realize that four split stone
The ejection action of rod 3, to reach the purpose for splitting stone；Another output branch road high-voltage oil liquid of hydraulic station 1, high-voltage oil liquid injection pressure release
Valve 6, so as to realize the unlatching of relief valve 6, four high-voltage oil liquids split in stone rod 3 are back to hydraulic station 1 via relief valve 6 again
(fuel tank), such perseveration, you can quick to realize the purpose for splitting stone.The quantity that the present invention splits stone rod 3 can be it is multiple, can be with
Determined according to the area of realistic objective object and hardness, the present invention is only explained exemplified by four.
Hydraulic station 1 is hydraulic power source, is typically paid the utmost attention to using powerful hydraulic hand-pump or automatic liquid press pump, the present invention
Use automatic liquid press pump.Hydraulic station 1 is divided to the High voltage output that two branch roads realize fluid, and one of branch road is as power source, separately
Controlling switch of the outer branch road as relief valve 6.
Check valve 5 is arranged between hydraulic station 1 and distributor 2, and the both ends of check valve 5 are communicated to by hydraulic tube 4 respectively
Hydraulic station 1 and distributor 2, realize that fluid, respectively to four one-way flows for splitting stone rod 3, is such as schemed from hydraulic station 1 by check valve 5
Shown in 4, check valve 5 includes the first valve body 51, the first spring base 52, the first spring 53 and the first plugging steel ball 54, wherein：
The centre of first valve body 51 is provided with and the first cavity volume 511 formed with the first cavity volume 511, the top of the first valve body 51
The first entrance 512 being connected, first entrance 512 are communicated to hydraulic station 1 by hydraulic tube 4, and the bottom of the first valve body 51 is set
There are six first outlets 513 being connected respectively with the first cavity volume 511, all first outlets 513 are communicated to point by hydraulic tube 4
Orchestration 2, six first outlets 513 are spacedly distributed in annular shape, and first entrance 512 and the connection position of the first cavity volume 511 install
The first closure part 514 is equipped with, the first closure part 514 is a part for spheroid；First spring base 52 is arranged in the first cavity volume 511
Corresponding to the position of first entrance 512；First spring 53 is arranged on the first spring base 52；First plugging steel ball 54 is arranged on
Between the spring 53 of first entrance 512 and first, the first plugging steel ball 54 is spheroid, and the diameter of the first plugging steel ball 54 is slightly less than
The diameter of the place spheroid of one closure part 514, oppressed using the elasticity of the first spring 53, to cause the first plugging steel ball 54 tight against firmly
First closure part 514, it is tight fit between the first plugging steel ball 54 and the first closure part 514.
(the hydraulic station when pressure of the fluid in first entrance 512 is more than the pressure of the fluid in the first cavity volume 511
1 oiling input power), fluid acts on the first plugging steel ball 54 upwards, between the first plugging steel ball 54 and the first closure part 514
Formed it is certain enter oil-gap, fluid is slowly injected into the first cavity volume 511, and is smoothly entered in distributor 2；Work as first entrance
When the pressure of fluid in 512 is less than the pressure of the fluid in the first cavity volume 511, the first spring 53 forces the first closure steel
Ball 54 forms sealing surface, so as to realize fluid tight against firmly the first closure part 514 between first spring 53 and the first closure part 514
Can only one way flow.
First valve body 51, the first spring base 52, the first spring 53 and the first plugging steel ball 54 are all hydraulic pressure super-pressure elements,
It is most basic requirement that pressure, which can be born, thus has selected 42CrNiMoA materials, using forging and stamping handling return, before finishing
Modifier treatment is carried out, δ b are not less than 980MPa, and δ s are not less than 835MPa, most important of which is that the hardness of steel ball and valve seat is taken
Match somebody with somebody, valve body hardness is controlled between HRC27~30, and steel ball surface hardness is finally scheduled between HRC53~58, and what is be connected with fuel feed hole is super
High pressure connection hardness is between HRC23~25.
Between distributor 2 is connected to check valve 5 and respectively splits stone rod 3, to realize the one-to-many output of fluid, distributor 2 is adopted
It is made of the metal material compared with hard, as shown in figure 3, distributor 2 includes body 21, oil inlet pipe 22, level Four dashpot 23, several
Cushion hole 24 and four flowlines 25, body 21 is in longitudinally disposed discoid；Oil inlet pipe 22 is arranged on the upper surface of body 21
Middle position, and connected between check valve 5 by hydraulic tube 4；Level Four dashpot 23 is in be cascaded from top to bottom, at different levels
Connected respectively by cushion hole 24 between dashpot 23；Four flowlines 25 are separately positioned on the lower surface of body 21, and respectively
It is connected with the dashpot 23 of the fourth stage；Cushion hole 24 between any two dashpot 23 be spacedly distributed in several ring-types or
Person is spacedly distributed in matrix form, and four flowlines 25 are annularly spacedly distributed or are spacedly distributed in matrix form.Pass through
The design in multi-buffer pond, using the cushioning effect of buffer pool, the pressure basic one of the fluid of four flowlines 25 can make it that
Cause, so as to ensure each fluid input pressure for splitting stone rod 3 identically or comparably, so as to realize that hydraulic station 1 splits stone rod 3 to each
The accurate control of equipressure, the series of dashpot 23 is more, and splitting the input pressure of stone rod 3 more tends to be identical.
Four split and are connected respectively by hydraulic tube 4 between stone rod 3 and four flowlines 25 of distributor 2, and of the invention splits
Stone rod 3 can realize that multiple spot acts on, i.e., it includes multiple application points for making stretching motion, and four structures for splitting stone rod 3 are the same,
(only shown as shown in Figure 2 in figure with two application points), split stone rod 3 include the cylinder cap 32, six of cylinder body 31, six piston body 33,
Six piston rods 34 and connecting bracket 35, wherein：
The exterior contour of cylinder body 31 is longitudinally disposed cylinder, and inflow pipeline 311, oil returning tube are provided with cylinder body 31
312 and six piston grooves 313, the correspondence that the outer end (oiler) of inflow pipeline 311 is communicated to distributor 2 by hydraulic tube 4 goes out
Oil pipe 25, the inner (oil-out) of inflow pipeline 311 be located at the corresponding rodless cavity of piston groove 313 position (left end end or
Side wall keeps left)；The inner (oiler) of oil returning tube 312 is located at the position of the corresponding rod chamber of piston groove 313, and (side wall is kept right position
Put), the outer end (oil-out) of oil returning tube 312 is communicated to relief valve 6 by hydraulic tube 4；The exterior contour of piston groove 313 is horizontal stroke
To the cylinder of setting, in being spacedly distributed from top to bottom, the right-hand member of all piston grooves 311 connects six piston grooves 311 with extraneous
Logical, the left end of all piston grooves 311 is in closed state, certainly, the piston groove can also be spacedly distributed in annular shape or
It is spacedly distributed in multiple annular shapes, depending on the object specifically divided.
Six cylinder caps 32 are separately positioned on the right-hand member of six corresponding piston grooves 313, and horizontal setting is provided with cylinder cap 32
Slide opening, sealed set between cylinder cap 32 and piston groove 313.
Six piston bodies 33 are slidably installed in each piston groove 313 respectively, and can be horizontally slipped along piston groove 313, piston body
Sealed set between 33 and piston groove 313.
The left end of six piston rods 34 is respectively fixedly connected with each piston body 33, and the right-hand member of piston rod 34 is respectively sleeved at correspondingly
In the slide opening of piston groove 313, and the slide opening of extended corresponding piston groove 313, it is close between piston rod 34 and the slide opening of piston groove 313
Envelope is set.
Connecting bracket 35 is arranged on the top of cylinder body 31, with realize cylinder body 31 it is firm be positioned at stone 8 (destination object)
Positioning hole 81 in, while facilitate guiding and supporting for connecting bracket 35.
Hydraulic tube 4 realizes that it plays sealing and hardness is required to bear the impact of high pressure using high voltage bearing tubing.
Relief valve 6, which is arranged on, respectively to be split between stone rod 3 and hydraulic station 1, to realize piston rod 34 during stretching, oil return
The oil outlet end closing of pipeline 312, piston rod 34 during contraction, open by the oil outlet end of oil returning tube 312, as shown in figure 5,
The relief valve 6 of the present invention uses buffering hydraulic super-pressure hydraulic control check valve, and it includes the second valve body 61, the second check valve 62, let out
Piston body 63 and pressure release push rod 64 are pressed, wherein：
The centre of second valve body 61 is formed with the second interconnected cavity volume 611 and the 3rd cavity volume 612, the second cavity volume 611
Positioned at the underface of the 3rd cavity volume 612, the bottom of the second valve body 61 is provided with the second entrance being connected with the second cavity volume 611
613, second entrance 613 is communicated to oil returning tube 312 by hydraulic tube 4 respectively, and the top of the second valve body 61 is provided with and the 3rd
The pressure relief opening 614 that cavity volume 612 is connected, pressure relief opening 614 are communicated to hydraulic station 1 by hydraulic tube 4；The side wall of second valve body 61 is set
The second outlet 615 being connected with the 3rd cavity volume 612 is equipped with, second outlet 615 is communicated to hydraulic station 1 by hydraulic tube 4.
The structure of second check valve 62 is consistent with check valve 5, and the second check valve 62 is fixedly mounted in the second cavity volume 611,
Second check valve 62 includes the 3rd valve body 621, second spring seat 622, the plugging steel ball 624 of second spring 623 and second, wherein：
3rd valve body 621 is fixedly mounted in the second cavity volume 611, is sealed set between the 3rd valve body 621 and the second valve body 61, and the 3rd
The centre of valve body 621 is provided with what is be connected with the 4th cavity volume 6211 formed with the 4th cavity volume 6211, the top of the 3rd valve body 621
3rd outlet 6212, the bottom of the 3rd valve body 621 is provided with six the 3rd entrances being connected respectively with the 4th cavity volume 6211
6213, six the 3rd entrances 6213 are spacedly distributed in annular shape, the link position of the 3rd outlet 6212 and the 4th cavity volume 6211
The second closure part 6214 is provided with, the second closure part 6214 is a part for spheroid；Second spring seat 622 is arranged on the 4th cavity volume
Correspond to the position of the 3rd outlet 6212 in 6211；Second spring 623 is arranged on second spring seat 622；Second closure steel
Ball 624 is arranged between the 3rd outlet 6212 and second spring 623, is oppressed using the elasticity of second spring 623, to cause second
Plugging steel ball 624 is closely to match somebody with somebody between the second closure part 6214 and the second plugging steel ball 624 tight against firmly the second closure part 6214
Close.3rd outlet 6212 of the second check valve 62 connects with the 3rd cavity volume 612, six the 3rd entrances 6213 of the second check valve 62
It is connected respectively with second entrance 613.
Pressure release piston body 63 is slidably installed in the 3rd cavity volume 612, and can be slided up and down along the 3rd cavity volume 612, pressure release piston
It is sealed set between the valve body 61 of body 63 and second, the extreme position of pressure release piston body 63 is no more than second outlet 615, i.e.,
Two outlets 615 are always positioned between the check valve 62 of pressure release piston body 63 and second (second outlet 615 is in naked state all the time).
Pressure release push rod 64 is in longitudinally disposed, and the top of pressure release push rod 64 is fixedly connected with pressure release piston body 63, pressure release push rod 64
Bottom be provided with supporting part with the shape adaptation of the second plugging steel ball 624, the bottom of pressure release push rod 64 can extend into the 3rd valve
In 3rd outlet 6212 of body 621, the supporting part of pressure release push rod 64 can slowly jack up the second plugging steel ball 624 upwards.
The operation principle of relief valve 6 is as follows：
(1) relief valve 6 is opened and closed to close：
When 614 no pressure oil of pressure relief opening, pressure release push rod 64 (is more than 0.5MPa under the back pressure effect of second outlet 615
Can, this is the experience accumulation in our hydraulic pressure extra high voltage system pressure release loop design and use, is answered so we eliminate push rod
Position spring) Fig. 5 positions are in, 200MPa hydraulic pressure, the second plugging steel ball can be now applied with second entrance 613
624 in the presence of second spring 623, is moved towards the direction of pressure release push rod 64, then close to the second closure part 6214, and not
Under hydraulic pressure hyperpressure effect more than 200MPa, the second plugging steel ball 624 is brought into close contact with the surface of the second closure part 6214, from
And sealing effectiveness is played, super-pressure fluid is obstructed in second entrance 613, now, relief valve 6 is in super-pressure " closing " shape
State.
(2) the positive unlatching of relief valve 6 is opened and closed：
When 614 no pressure oil of pressure relief opening, second outlet 615 can connect 35MPa pressure oil, pressure release push rod 64 no matter
In any position, can all move back to pressure relief opening 614, the pressure oil of such second outlet 615 can overcome the resistance of second spring 623
Power, second entrance 613 is flowed to, due to being that band opens and closes pooling feature, be mainly used in hydraulic pressure super-pressure pressure release, positive passage flow duct area
Small, this valve is not suitable for positive unlatching, but after being replaced with non-buffered push rod, positive flow area is back to normal, can use
This function.
(3) relief valve 6 is opened and closed reversely to open
In the case where second entrance 613 is in superelevation pressure condition, second outlet 615 is in low-pressure state, when pressure relief opening 614 is connected
During control pressure oil, pressure release push rod 64 by force opens the second plugging steel ball 624 top, in the moment that top is opened, ultrahigh-pressure hydraulic oil meeting
Great impact phenomenon is produced, very big throttle effect can be produced by now buffering the annular gap of 0.2 millimeter of the valve element conical surface, so as to
The hydraulic shock intensity of moment is opened in limitation, as pressure release push rod 64 moves in the presence of control oil towards the end of second entrance 613
Dynamic, valve element flow area is gradually increased, and throttle effect gradually weakens until reaching the flow area of six latus rectums.Reverse opening structure
In design, a diameter of 40 millimeters of pressure release piston body 63, the covering diameter of the second plugging steel ball 624 sealing is 8 millimeters, area ratio
For 25：1, that is to say, that under 200MPa pressure, the minimum Opening pressure of pressure relief opening 614 is 8MPa, under 150MPa pressure, pressure release
It is 6MPa that the minimum pressure of mouth 614, which is opened, by that analogy.
The better embodiment of the present invention is the foregoing is only, the invention is not limited in above-mentioned embodiment, is implementing
During there may be local small structural modification, if not departing from the essence of the present invention to the various changes or modifications of the present invention
God and scope, and belong within the scope of the claim and equivalent technologies of the present invention, then the present invention is also intended to comprising these changes
And modification.
Claims (8)
1. one kind automatically split stone machine, it is characterised in that it including hydraulic station, it is at least one split stone rod, hydraulic tube, check valve and
Relief valve, connected between the hydraulic station and check valve by hydraulic tube, check valve and each described split pass through liquid between stone rod
Pressure pipe connects, to realize that the fluid in hydraulic station to the output of stone rod one direction is respectively split, respectively splits and passes through liquid between stone rod and relief valve
Pressure pipe connects, and is connected between relief valve and hydraulic station by two hydraulic tubes, each stone rod that splits is described to let out during ejection
Pressure valve is in closed mode, and each stone rod that splits is during contraction, wherein a hydraulic tube realizes the fluid control in hydraulic station
The unlatching of relief valve, the fluid that a hydraulic tube realization is respectively split in stone rod in addition are back to hydraulic station；
The relief valve includes the second valve body, the second check valve, pressure release piston body and pressure release push rod, the centre of second valve body
Formed with interconnected the second cavity volume and the 3rd cavity volume, second cavity volume is located at the underface of the 3rd cavity volume, the second valve body
Bottom be provided with the second entrance being connected with the second cavity volume, the second entrance is communicated to by hydraulic tube splits stone rod,
The top of two valve bodies is provided with the pressure relief opening being connected with the 3rd cavity volume, and pressure relief opening is communicated to hydraulic station by hydraulic tube；Second
The side wall of valve body is provided with the second outlet being connected with the 3rd cavity volume, and second outlet is communicated to hydraulic station by hydraulic tube；Institute
State the second check valve to be fixedly mounted in the second cavity volume, seal and coordinate between the second check valve and the second cavity volume, the second check valve
Input be connected with second entrance, the output end of the second check valve is connected with the 3rd cavity volume；The pressure release piston body is slided
It is located in the 3rd cavity volume, and can be slided up and down along the 3rd cavity volume, is sealed set between pressure release piston body and the second valve body；Institute
It is in longitudinally disposed to state pressure release push rod, and the top of pressure release push rod is fixedly connected with pressure release piston body, and the bottom of pressure release push rod can extend into
Into the second check valve, pressure release push rod can slowly push up out downwards the occluding body of the second check valve；
Second check valve includes the 3rd valve body, second spring seat, second spring and the second plugging steel ball, the 3rd valve body
It is fixedly mounted in the second cavity volume, is sealed set between the 3rd valve body and the second valve body, the centre of the 3rd valve body is formed with
Four cavity volumes, the top of the 3rd valve body are provided with the 3rd outlet being connected with the 4th cavity volume, and the 3rd outlet connects with the 3rd cavity volume,
3rd outlet and the link position of the 4th cavity volume are provided with the second closure part, and the bottom of the 3rd valve body is provided with respectively with the
At least one 3rd entrance that four cavity volumes are connected, all 3rd entrances are connected with second entrance respectively, the second spring
Seat is arranged on the position for corresponding to the 3rd outlet in the 4th cavity volume, and the second spring is arranged on second spring seat, described
Second plugging steel ball is arranged between the 3rd outlet and second spring as occluding body, to cause the second plugging steel ball tight against firmly the
Two closure parts, coordinate between the second plugging steel ball and the second closure part for sealing.
2. according to claim 1 automatically split stone machine, it is characterised in that the bottom of the pressure release push rod is provided with and the
The supporting part of the occluding body shape adaptation of two check valves.
3. according to claim 1 automatically split stone machine, it is characterised in that second plugging steel ball is spheroid, described
Second closure part is a part for spheroid.
4. according to claim 1 automatically split stone machine, it is characterised in that the quantity of the 3rd entrance is multiple, institute
There is the 3rd entrance to be spacedly distributed in annular shape.
5. according to claim 1 automatically split stone machine, it is characterised in that the stone rod that splits includes cylinder body, and at least
One group of cylinder cap, piston body and piston rod, inflow pipeline, oil returning tube and at least one piston groove, institute are provided with the cylinder body
The closing of piston groove one end is stated, the other end is set in opening, and all cylinder caps are separately positioned on the openend of corresponding piston groove, cylinder cap
On be provided with slide opening, sealed set between cylinder cap and piston groove, all piston bodies are slidably installed in corresponding piston groove respectively, piston body
The sealed set between piston groove, one end of all piston rods are respectively fixedly connected with each piston body, and the other end is respectively sleeved at pair
Answer in the slide opening of piston groove, and the slide opening of corresponding piston groove can be stretched out, sealed set between piston rod and the slide opening of piston groove,
The outer end of the inflow pipeline is oiler, and the oiler is communicated to the corresponding flowline of distributor by hydraulic tube, distribution
The oil inlet pipe of device is communicated to check valve by hydraulic tube, and the inner of inflow pipeline is located at the position of the corresponding rodless cavity of piston groove,
The inner of the oil returning tube is located at the position of the corresponding rod chamber of piston groove, and the outer end of oil returning tube is communicated to by hydraulic tube
Relief valve.
6. according to claim 5 automatically split stone machine, it is characterised in that the quantity of the piston groove is multiple, is owned
Piston groove is in be spacedly distributed from top to bottom.
7. according to claim 1 automatically split stone machine, it is characterised in that the check valve includes the first valve body, first
Spring base, the first spring and the first plugging steel ball, the centre of first valve body is formed with the first cavity volume, the top of the first valve body
The first entrance being connected with the first cavity volume is provided with, the first entrance is communicated to hydraulic station, first entrance by hydraulic tube
The link position of first cavity volume is provided with the first closure part, the bottom of the first valve body is provided with to be connected with the first cavity volume respectively
At least one first outlet, all first outlets are communicated to distributor by hydraulic tube, and distributor is communicated to by hydraulic tube
Stone rod is respectively split, first spring base is arranged on the position for corresponding to first entrance in the first cavity volume, the first spring installation
On the first spring base, first plugging steel ball is arranged between first entrance and the first spring, to cause the first closure
Steel ball coordinates tight against firmly the first closure part between the first plugging steel ball and the first closure part for sealing.
8. according to claim 7 automatically split stone machine, it is characterised in that first plugging steel ball is spheroid, described
First closure part is a part for spheroid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610367767.7A CN105864129B (en) | 2016-05-26 | 2016-05-26 | Automatically split stone machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610367767.7A CN105864129B (en) | 2016-05-26 | 2016-05-26 | Automatically split stone machine |
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| CN105864129B true CN105864129B (en) | 2018-01-23 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167244A (en) * | 2018-02-26 | 2018-06-15 | 泸州市博力机械设备有限公司 | Ultrahigh-pressure hydraulic rock rupture system |
| CN110500094B (en) * | 2019-08-27 | 2020-11-03 | 中铁隧道局集团有限公司 | Cartridge clip type splitting rod installation equipment |
| CN110469328B (en) * | 2019-08-27 | 2020-08-25 | 中铁隧道局集团有限公司 | Drill and split integrated device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4721339A (en) * | 1984-10-23 | 1988-01-26 | Okumura Corporation | Rock crushing device and a method thereof |
| JPH07150884A (en) * | 1993-11-29 | 1995-06-13 | Nippon Koki Kk | Control mechanism for rock cracking device |
| CN201982396U (en) * | 2011-04-22 | 2011-09-21 | 郑州人造金刚石及制品工程技术研究中心有限公司 | Super-pressure hydraulic control check valve |
| CN203296775U (en) * | 2013-05-31 | 2013-11-20 | 潍坊亿宏重工机械有限公司 | Hydraulic rock splitting machine |
| CN102828754B (en) * | 2012-10-07 | 2014-07-09 | 成都力锋清洗机股份有限公司 | Environment-friendly high-pressure quarrying machine and environment-friendly quarrying process |
| CN203963136U (en) * | 2014-07-14 | 2014-11-26 | 郭金战 | A kind of one-way valve |
| CN104948188A (en) * | 2015-07-06 | 2015-09-30 | 北京旭日汇安矿山工程技术有限公司 | Overload protection device for stone cracking equipment |
| CN204960935U (en) * | 2015-08-11 | 2016-01-13 | 江苏安能钻掘设备科技有限公司 | Formula hydraulic pressure division stick concatenates |
| CN205225257U (en) * | 2015-11-13 | 2016-05-11 | 武汉市力特达机械设备有限公司 | Split rock device |
-
2016
- 2016-05-26 CN CN201610367767.7A patent/CN105864129B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4721339A (en) * | 1984-10-23 | 1988-01-26 | Okumura Corporation | Rock crushing device and a method thereof |
| JPH07150884A (en) * | 1993-11-29 | 1995-06-13 | Nippon Koki Kk | Control mechanism for rock cracking device |
| CN201982396U (en) * | 2011-04-22 | 2011-09-21 | 郑州人造金刚石及制品工程技术研究中心有限公司 | Super-pressure hydraulic control check valve |
| CN102828754B (en) * | 2012-10-07 | 2014-07-09 | 成都力锋清洗机股份有限公司 | Environment-friendly high-pressure quarrying machine and environment-friendly quarrying process |
| CN203296775U (en) * | 2013-05-31 | 2013-11-20 | 潍坊亿宏重工机械有限公司 | Hydraulic rock splitting machine |
| CN203963136U (en) * | 2014-07-14 | 2014-11-26 | 郭金战 | A kind of one-way valve |
| CN104948188A (en) * | 2015-07-06 | 2015-09-30 | 北京旭日汇安矿山工程技术有限公司 | Overload protection device for stone cracking equipment |
| CN204960935U (en) * | 2015-08-11 | 2016-01-13 | 江苏安能钻掘设备科技有限公司 | Formula hydraulic pressure division stick concatenates |
| CN205225257U (en) * | 2015-11-13 | 2016-05-11 | 武汉市力特达机械设备有限公司 | Split rock device |
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| CN105864129A (en) | 2016-08-17 |
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