CN106195332B - A kind of hydraulic reaming makes cave with unidirectional filtering type from row's powder high-low pressure water flow switching valve - Google Patents
A kind of hydraulic reaming makes cave with unidirectional filtering type from row's powder high-low pressure water flow switching valve Download PDFInfo
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- CN106195332B CN106195332B CN201610762174.0A CN201610762174A CN106195332B CN 106195332 B CN106195332 B CN 106195332B CN 201610762174 A CN201610762174 A CN 201610762174A CN 106195332 B CN106195332 B CN 106195332B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 105
- 239000000843 powder Substances 0.000 title claims abstract description 24
- 238000001914 filtration Methods 0.000 title claims abstract description 23
- 238000004080 punching Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000003245 coal Substances 0.000 abstract description 15
- 238000005553 drilling Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 5
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000010992 reflux Methods 0.000 abstract description 2
- 239000002817 coal dust Substances 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
- F16K11/0716—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides with fluid passages through the valve member
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- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/28—Enlarging drilled holes, e.g. by counterboring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
- F16K17/046—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces the valve being of the gate valve type or the sliding valve type
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A kind of hydraulic reaming makes cave with unidirectional filtering type from row's powder high-low pressure water flow switching valve, the valve body of auger is had including outer wall, there is the central passage to circulate for water flow in valve body, head end of the valve body along punching direction is equipped with drill bit connector, tail end of the valve body along punching direction is equipped with multiple body walls that run through and is placed in the fluid jet nozzle in central passage, the drill bit connector has the through-hole to connect with central passage, through-hole tail end and central passage joint are fixedly installed the check valve entered in through-hole for water flow one-way flow, through-hole head end is provided with strainer, annular stop protrusion is provided at the central passage tail portion, valve body, which is located in the central passage between drill bit connector and annular stop protrusion, is provided with high-low pressure water flow switching mechanism.Switching valve of the present invention, the pressure for changing water flow can realize conversion between drilling and punching function, and check valve solves the coal water reflux problem drilled and occurred often in punch process.
Description
Technical field
The present invention relates to downhole coal mine machinery equipment field, specially a kind of hydraulic reaming is made cave and is arranged certainly with unidirectional filtering type
Powder high-low pressure water flow switching valve.
Background technique
With the increase of coal bed drilling depth, the stress between coal seam is also gradually increased, the gas that common small drill bit is beaten
Extraction hole is easy to be gone back by the stress extruding between coal seam, greatly reduces the efficiency of gas drainage under suction.Waterpower drilling technique is certainly
It is just gradually applied in seam mining up to now after being found the eighties in last century.But due to waterpower bore operation
Mode needs to extract on drilling rod in punching, changes punching apparatus into, is just able to achieve hydraulic flushing in hole.These equipment are mostly more stupid
Weight, attachment is more, when complex procedures and secondary importings drilling rod can because caused by the reasons such as collapse hole importing it is not smooth, seriously affect gas
Extraction work causes the low labor intensity of workers of drilling efficiency and increases, the adverse effect of the various aspects such as downhole production efficiency.
Summary of the invention
In order to solve the problems, such as above-mentioned hydraulic flushing in hole operation, the invention proposes a kind of hydraulic reamings to make cave list
To filtering type from row's powder high-low pressure water flow switching valve, auger can arrange powder automatically, and the pressure for changing water flow can realize drilling and punching
Conversion between the function of hole, check valve solve the coal water reflux problem drilled and occurred often in punch process.
The technical solution that the present invention is taken to solve the above-mentioned problems are as follows: a kind of hydraulic reaming makes cave with unidirectional filtering type
From row's powder high-low pressure water flow switching valve, the valve body of auger is had including outer wall, there is the central passage to circulate for water flow in valve body,
Head end of the valve body along punching direction is equipped with drill bit connector, and tail end of the valve body along punching direction runs through body wall simultaneously equipped with multiple
The fluid jet nozzle being placed in central passage, the drill bit connector have the through-hole that connects with central passage, through-hole tail end with
Central passage joint is fixedly installed the check valve entered in through-hole for water flow one-way flow, and through-hole head end is provided with strainer, described
Annular stop protrusion is provided at central passage tail portion, the center that valve body is located between drill bit connector and annular stop protrusion is logical
High-low pressure water flow switching mechanism is provided in road；
The high-low pressure water flow switching mechanism includes piston cylinder and the piston valve that sliding is plugged in piston cylinder, piston cylinder
It is along the sealing of punching direction head end, the open cylinder of tail end with piston valve, piston cylinder tail portion side wall offers and fluid jet nozzle
The high-pressure jet hole being mutually communicated；Low pressure water flow channel, the side wall of piston cylinder are formed between the cylinder and central passage of piston cylinder
The low pressure water flow through-hole I being connected to low pressure water flow channel is offered, the side wall of piston valve offers low pressure water flow through-hole II, piston
Valve is connect by the way that the intracorporal elastic component of piston cylinder cylinder is arranged in the bottom wall of piston cylinder sealed end, and in elastic component nature
Under, low pressure water flow through-hole II is mutually communicated with low pressure water flow through-hole I, and the valve wall end seal high-pressure jet hole of piston valve, and
When hydraulic pressure increases, piston valve Forward compression elastic piece rear enclosed low pressure water flow through-hole II opens high-pressure jet hole.
Preferably, the check valve is by the one-way valve seat with a trapezoidal cavity and the steel being arranged in trapezoidal cavity
Ball is constituted, and the big opening end of trapezoidal cavity is arranged towards punching direction, and trapezoidal cavity is connected with through-hole and central passage.
It is provided with preferably, being located at check valve head and the tail both ends in the through-hole for fixing check valve and can lead to
Cross the baffle and limit stop ring of water flow.
Preferably, the drill bit connector threads are connected in valve body, the setting of drill bit connector head end is useful
In the pin end of connection drill bit, and the length of pin end is not more than 35 millimeters.
Preferably, the piston cylinder head end is sealed by silk plug.
Preferably, the both ends of the piston cylinder all have and the matched Connection protrusion of central passage internal diameter, piston cylinder
Cylinder external diameter between two Connection protrusions is less than central passage internal diameter, and low pressure water flow through-hole I is arranged in piston cylinder cylinder
At the position of upper adjacent pistons cylinder tail end Connection protrusion, high-pressure jet hole is arranged in the Connection protrusion of piston cylinder tail end.
Preferably, being provided with the limit stop ring for limiting piston valve position at the open end of the piston cylinder.
Preferably, the side that the strainer is located at drill bit connector head end is provided with the limiting block for fixing strainer
Circle.
Preferably, being all provided between the piston cylinder both ends and central passage and between piston valve both ends and piston cylinder
It is equipped with sealing ring.
Preferably, tail end of the valve body along punching direction is equipped with the female connector for jointed rod.
Compared with prior art, the invention has the following advantages:
First, a kind of hydraulic reaming of the present invention makes cave with unidirectional filtering type from row's powder high-low pressure water flow switching valve,
High-low pressure water flow switching mechanism using hydraulic pressure as power can make switching valve integrate drill, punching, realize drilling and punching
Integration solves to drill in conventional equipment and converts replacement with punching spare and accessory parts are more, labor intensity of workers is big, inefficiency
Problem, and structure is simple, when operation, only need to change water flow pressure, and operation is extremely convenient.
Second, a kind of hydraulic reaming of the present invention makes cave with unidirectional filtering type from row's powder high-low pressure water flow switching valve,
Coal dust can be automatically drained out by the auger of valve outer wall in the case where switching valve works bore state along the hand of spiral of auger, be avoided
The accumulation of coal dust in the borehole.
Third, a kind of hydraulic reaming of the present invention make cave with unidirectional filtering type from row's powder high-low pressure water flow switching valve,
Water flow is flowed in coal bed drilling by switching valve, and water flow and coal dust are mixed to form coal slime, and check valve can effectively prevent coal slime
Adverse current enters in drill bit connector, guarantees the normal work of high-low pressure water flow switching mechanism.
4th, a kind of hydraulic reaming of the present invention makes cave with unidirectional filtering type from row's powder high-low pressure water flow switching valve,
The pin end of drill bit connector head end is compared for the existing conventional pin end for connecting drill bit, drill bit connector head end
Pin end length it is obviously shorter than conventional pin end, it is long in the case where manufacturing same torque and not losing stability
It spends shorter pin end to be easier to dismantle, improves bore operation efficiency.
Detailed description of the invention
Fig. 1 makes the cave structure of unidirectional filtering type from row's powder high-low pressure water flow switching valve for a kind of hydraulic reaming of the present invention and shows
It is intended to；
Fig. 2 is that a kind of hydraulic reaming of the present invention makes cave valve body in unidirectional filtering type certainly row's powder high-low pressure water flow switching valve
Structural schematic diagram；
Fig. 3 is that a kind of hydraulic reaming of the present invention makes cave high-low pressure in unidirectional filtering type certainly row's powder high-low pressure water flow switching valve
The structural schematic diagram of water flow switching mechanism；
Fig. 4 is that a kind of hydraulic reaming of the present invention makes cave drill bit company in unidirectional filtering type certainly row's powder high-low pressure water flow switching valve
The structural schematic diagram of connector；
Marked in the figure: 1, valve body, 101, fluid jet nozzle, 102, female connector, 2, annular stop protrusion, 3, drill bit connector,
301, through-hole, 302, baffle, 303, pin end, 4, piston cylinder, 401, high-pressure jet hole, 402, low pressure water flow through-hole I, 403, company
Connect protrusion, 5, piston valve, 501, low pressure water flow through-hole II, 6, elastic component, 7, low pressure water flow channel, 8, check valve, 801, unidirectional
Valve seat, 802, steel ball, 9, strainer, 10, silk plug, 11, limit stop ring, 12, sealing ring.
Specific embodiment
The present invention will be described in detail below with reference to specific embodiments, the present embodiment based on the technical solution of the present invention,
The detailed implementation method and specific operation process are given.
As shown, the present invention makes the unidirectional filtering type in cave for a kind of hydraulic reaming arranges powder high-low pressure water flow switching valve certainly,
The valve body 1 of auger is had including outer wall, and there is the central passage to circulate for water flow, head end of the valve body 1 along punching direction in valve body 1
Equipped with drill bit connector 3, tail end of the valve body 1 along punching direction is equipped with multiple 1 side walls of valve body that run through and is placed in central passage
Fluid jet nozzle 101, the drill bit connector 3 have the through-hole 301 to connect with central passage, and 301 tail end of through-hole and center are logical
Road joint is fixedly installed the check valve 8 entered in through-hole 301 for water flow one-way flow, and 301 head end of through-hole is provided with strainer 9, institute
It states and is provided with annular stop protrusion 2 at central passage tail portion, annular stop protrusion 2 is actually around the one of central passage inner wall
Protrusion is enclosed, valve body 1 is provided with high-low pressure water flow and cuts in the central passage between drill bit connector 3 and annular stop protrusion 2
It changes planes structure；
The high-low pressure water flow switching mechanism includes piston cylinder 4 and the piston valve 5 that sliding is plugged in piston cylinder 4, is lived
Plug tube 4 and piston valve 5 are along the sealing of punching direction head end, the open cylinder of tail end, and 4 tail portion side wall of piston cylinder is offered and penetrated
The high-pressure jet hole 401 that stream spray head 101 is mutually communicated；Low pressure water flow channel is formed between the cylinder and central passage of piston cylinder 4
7, the side wall of piston cylinder 4 offers the low pressure water flow through-hole I 402 being connected to low pressure water flow channel 7, and the side wall of piston valve 5 opens up
There is low pressure water flow through-hole II 501, piston valve 5, which passes through, is arranged in piston cylinder 4 intracorporal elastic components 6 and 4 sealed end of piston cylinder
Bottom wall connection, and elastic component 6 under natural conditions, low pressure water flow through-hole II 501 is mutually communicated with low pressure water flow through-hole I 402, and
The valve wall end seal high-pressure jet hole 401 of piston valve 5, and when hydraulic pressure increases, it is sealed after the Forward compression elastic piece 6 of piston valve 5
Low pressure water flow through-hole II 501 is closed, high-pressure jet hole 401 is opened.
The above are basic embodiments of the invention, can be improved further, optimize or limit on the basis of above.
Further, the check valve 8 by the one-way valve seat 801 with a trapezoidal cavity and is arranged in trapezoidal cavity
Steel ball 802 is constituted, and outer diameter size and 301 internal diameter of through-hole of one-way valve seat 801 match, and the big opening end of trapezoidal cavity is towards punching
Direction setting, and trapezoidal cavity is connected with through-hole 301 and central passage.
Further, in the through-hole 301 be located at 8 head and the tail both ends of check valve at be provided with for fix check valve 8 and
Can be by the baffle 302 and limit stop ring 11 of water flow, baffle 302 and limit stop ring 11 are annular structure, intermediate spacious hole
It is connected to through-hole 301 and central passage, for passing through for water flow.
Further, 3 threads of drill bit connector are connected in valve body 1, and the setting of 3 head end of drill bit connector is useful
In the pin end 303 of connection drill bit, and the length of pin end 303 is not more than 35 millimeters, by the length of pin end in practical application
It is set as 30 millimeters.
The existing conventional pin end for being used to connect drill bit, length are generally 55 millimeters, and daily disassembly more consumes
When, and in the longer situation of reach precession power it is just bigger, disassembly is laborious, now sets 30 millis for the length of pin end
Rice, compared to its conventional length reduction nearly half, and by repeatedly it was verified that 30 millimeters of pin end is moved identical
Brought torque and the stability of connection compare 55 millimeters of traditional pin end under the premise of power, and are not affected by too big shadow
It rings, that is, under identical power, 30 millimeters of pin end and 55 millimeters of traditional pin end can transmit same torque and tool
There is same stability.Most of all, 30 millimeters of pin end is more time saving and energy saving when drill bit is dismantled.
Further, 4 head end of piston cylinder is sealed by silk plug 10.
Further, the both ends of the piston cylinder 4 all have and the matched Connection protrusion 403 of central passage internal diameter, piston
Cylinder 4 is located at the cylinder external diameter between two Connection protrusions 403 and is less than central passage internal diameter, and low pressure water flow through-hole I 402 is arranged in work
On 4 cylinder of plug tube at the position of adjacent pistons cylinder tail end Connection protrusion 403, piston cylinder tail end is arranged in high-pressure jet hole 401
In Connection protrusion 403.
Further, the limit stop ring 11 for limiting 5 position of piston valve is provided at the open end of the piston cylinder 4.
Further, the side that the strainer 9 is located at 3 head end of drill bit connector is provided with the limit for fixing strainer 9
Retaining ring 11.
Further, between 4 both ends of piston cylinder and central passage and between 5 both ends of piston valve and piston cylinder 4
It is provided with sealing ring 12.
Further, tail end of the valve body 1 along punching direction is equipped with the female connector 102 for jointed rod.
During normally drilling, the flow velocity and pressure of water are relatively low, and water flow first enters work through the central passage in valve body 1
Plug valve 5, hydraulic pressure is not enough to compression elastic piece 6, the low pressure water flow through-hole II 501 of piston valve 5 and the low pressure water flow of piston cylinder 4 at this time
Through-hole I 402 is mutually communicated, and the valve wall end seal high-pressure jet hole 401 of piston valve 5, and entire coal cutting device is in low pressure water
Stream rinses the state of cooling, and water flow successively flows into low pressure water flow channel after low pressure water flow through-hole II 501, low pressure water flow through-hole I 402
7, and by strainer 9 after low pressure water flow channel 7 passes through in the through-hole 301 that check valve 8 enters drill bit connector 3, flow direction with
In the drill bit that switching valve is connected, the water flow for flowing to drill bit can carry out waterpower cooling to drill bit, can be to coal seam wall after water flow outflow
It is washed away, and in water flow in the wall scour process of coal seam, check valve 8 can effectively prevent coal water adverse current to enter drill bit connector
In 3.
Use the principle of orifice restriction in the cooling link of drill bit: after water flow passes through strainer 9, water flow encounter narrow suddenly it is disconnected
Face, due to declining the pressure of water flow sharply, corresponding to evaporating temperature also can accordingly decline, therefore liquid is just
It can evaporate at a lower temperature, evaporation process absorbs the heat of itself, to cool down to drill bit 8.
During cave is made in punching, the pressure and flow velocity of increased water flow, water flow first enter work through the central passage in valve body 1
Plug valve 5, the power that hydraulic pressure collides 5 gasket of piston valve at this time are enough compression elastic piece 6, and elastic component 6 is shunk, and piston valve 5 moves forward, living
The low pressure water flow through-hole II 501 of plug valve 5 and the low pressure water flow through-hole I 402 of piston cylinder 4 lose the state of perforation, close water flow
Preceding stand in channel, until the valve wall end of piston valve 5 is detached from sealing to high-pressure jet hole 401, at this point, high-pressure jet hole 401 and penetrating
The central passage of stream spray head 101 and valve body 1 is in the state being mutually communicated, and the water flow of high pressure by high-pressure jet hole 401 and is penetrated
High pressure punching is carried out to coal seam after stream spray head 101 and makes cave.
During cave is made in high pressure punching, the path blockade of low pressure water flow, promotion of the check valve 8 without water flow, Jiu Huiguan
Closed walk prevents coal water from entering in drill bit connector 3 use for influencing piston type stream commutator by drill bit apopore.
In use, switching valve female connector is connect with conventional drilling rod, the pin end on switching valve head end drill bit connector 3
Drill bit is connected, operation of drilling is carried out.During drilling, the auger in 1 outside of valve body can be automatically drained out ore and coal dust,
Prevent it from influencing drilling efficiency.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention is as above with preferred embodiment description, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when a little change or modification made using technology contents described above
It is the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention, according to the technical essence of the invention
Any simple modification, equivalent change and modification to the above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (8)
1. a kind of hydraulic reaming makes cave with unidirectional filtering type from row's powder high-low pressure water flow switching valve, the valve of auger is had including outer wall
Body (1), has central passage circulate for water flow in valve body (1), valve body (1) along punching direction head end equipped with drill bit connector
(3), tail end of the valve body (1) along punching direction is equipped with multiple valve body (1) side walls that run through and is placed in the fluid jet nozzle in central passage
(101), it is characterised in that: the drill bit connector (3) has the through-hole (301) to connect with central passage, through-hole (301) tail
End is fixedly installed the check valve (8) entered in through-hole (301) for water flow one-way flow with central passage joint, and through-hole (301) is first
End is provided with strainer (9), and annular stop protrusion (2) is provided at the central passage tail portion, and valve body (1) is located at drill bit connector
(3) high-low pressure water flow switching mechanism is provided in the central passage between annular stop raised (2)；
The high-low pressure water flow switching mechanism includes piston cylinder (4) and the piston valve (5) that is plugged in piston cylinder (4) of sliding,
Piston cylinder (4) and piston valve (5) are along the sealing of punching direction head end, the open cylinder of tail end, and piston cylinder (4) head end is logical
Silk plug (10) sealing is crossed, piston cylinder (4) tail portion side wall offers the high-pressure jet hole being mutually communicated with fluid jet nozzle (101)
(401)；Low pressure water flow channel (7) are formed between the cylinder and central passage of piston cylinder (4), the side wall of piston cylinder (4) offers
The side wall of the low pressure water flow through-hole I (402) being connected to low pressure water flow channel (7), piston valve (5) offers low pressure water flow through-hole II
(501), piston valve (5) is connected by setting in the bottom wall of the intracorporal elastic component of piston cylinder (4) cylinder (6) and piston cylinder (4) sealed end
Connect, and elastic component (6) under natural conditions, low pressure water flow through-hole II (501) is mutually communicated with low pressure water flow through-hole I (402), and
The valve wall end seal high-pressure jet hole (401) of piston valve (5), and when hydraulic pressure increases, piston valve (5) Forward compression elastic piece
(6) rear enclosed low pressure water flow through-hole II (501) is opened high-pressure jet hole (401), tail end of the valve body (1) along punching direction
Equipped with the female connector (102) for jointed rod.
2. a kind of hydraulic reaming as described in claim 1 makes cave and arranges powder high-low pressure water flow switching valve certainly with unidirectional filtering type,
Be characterized in that: the check valve (8) is by with a trapezoidal cavity one-way valve seat (801) and the steel ball that is arranged in trapezoidal cavity
(802) it constitutes, the big opening end of trapezoidal cavity is arranged towards punching direction, and trapezoidal cavity and through-hole (301) and central passage phase
Connection.
3. a kind of hydraulic reaming as described in claim 1 makes cave and arranges powder high-low pressure water flow switching valve certainly with unidirectional filtering type,
Be characterized in that: in the through-hole (301) be located at check valve (8) head and the tail both ends at be provided with for fix check valve (8) and can
Pass through the baffle (302) and limit stop ring (11) of water flow.
4. a kind of hydraulic reaming as described in claim 1 makes cave and arranges powder high-low pressure water flow switching valve certainly with unidirectional filtering type,
Be characterized in that: drill bit connector (3) threads are connected in valve body (1), and drill bit connector (3) head end, which is provided with, to be used for
The pin end (303) of drill bit is connected, and the length of pin end (303) is not more than 35 millimeters.
5. a kind of hydraulic reaming as described in claim 1 makes cave and arranges powder high-low pressure water flow switching valve certainly with unidirectional filtering type,
Be characterized in that: the both ends of the piston cylinder (4) all have and the matched Connection protrusion of central passage internal diameter (403), piston cylinder (4)
Cylinder external diameter between two Connection protrusions (403) is less than central passage internal diameter, and low pressure water flow through-hole I (402) setting exists
On piston cylinder (4) cylinder at the position of adjacent pistons cylinder tail end Connection protrusion (403), high-pressure jet hole (401) are arranged in piston
In the Connection protrusion (403) of cylinder tail end.
6. a kind of hydraulic reaming as described in claim 1 makes cave and arranges powder high-low pressure water flow switching valve certainly with unidirectional filtering type,
It is characterized in that: being provided with the limit stop ring (11) for limiting piston valve (5) position at the open end of the piston cylinder (4).
7. a kind of hydraulic reaming as described in claim 1 makes cave and arranges powder high-low pressure water flow switching valve certainly with unidirectional filtering type,
Be characterized in that: the side that the strainer (9) is located at drill bit connector (3) head end is provided with the limiting block for fixing strainer (9)
It encloses (11).
8. a kind of hydraulic reaming as described in claim 1 makes cave and arranges powder high-low pressure water flow switching valve certainly with unidirectional filtering type,
Be characterized in that: the piston cylinder (4) is all provided between both ends and central passage and between piston valve (5) both ends and piston cylinder (4)
It is equipped with sealing ring (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610762174.0A CN106195332B (en) | 2016-08-30 | 2016-08-30 | A kind of hydraulic reaming makes cave with unidirectional filtering type from row's powder high-low pressure water flow switching valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610762174.0A CN106195332B (en) | 2016-08-30 | 2016-08-30 | A kind of hydraulic reaming makes cave with unidirectional filtering type from row's powder high-low pressure water flow switching valve |
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| CN106195332B true CN106195332B (en) | 2019-05-17 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106640065A (en) * | 2016-12-23 | 2017-05-10 | 长江三峡勘测研究院有限公司（武汉） | Water drawing device for obtaining water sample from predetermined depth in drill hole |
| CN108104711B (en) * | 2017-12-20 | 2023-11-24 | 山东天瑞重工有限公司 | Novel hydraulic rock drill powder discharging and water supplying mechanism |
| CN108505945B (en) * | 2018-03-30 | 2024-05-14 | 平顶山天成矿山工程设备有限公司 | Punching and drilling integrated drill bit |
| CN108386138B (en) * | 2018-03-30 | 2024-05-14 | 平顶山天成矿山工程设备有限公司 | Drilling assembly for coal mine |
| CN108979540B (en) * | 2018-08-15 | 2024-05-14 | 铁福来装备制造集团股份有限公司 | Mechanical hydrodynamic force combined reaming device |
| CN109538132A (en) * | 2018-12-27 | 2019-03-29 | 冀凯河北机电科技有限公司 | A kind of multi-purpose water-through jackrod of self-sealing |
| CN109707883A (en) * | 2019-01-22 | 2019-05-03 | 安徽理工大学 | A kind of anti-clogging safety valve |
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| CN101413380A (en) * | 2008-11-20 | 2009-04-22 | 重庆大学 | Multifunctional self-oscillation flow jet flow drill |
| CN103993837A (en) * | 2014-06-09 | 2014-08-20 | 平顶山市安泰华矿用安全设备制造有限公司 | High-low pressure automatic switching drill bit for hydraulic punching |
| CN204899770U (en) * | 2015-08-24 | 2015-12-23 | 河南宇建科技股份有限公司 | Brill is towards integrative device |
| CN205978621U (en) * | 2016-08-30 | 2017-02-22 | 河南铁福来装备制造股份有限公司 | Cave is made with one -way filtration formula from arranging high low -pressure water flow diverter valve of powder to water conservancy reaming |
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| KR101352302B1 (en) * | 2010-11-22 | 2014-01-24 | 주식회사 케이티 | Mud hammer for underground boring using high water pressure |
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| CN101413380A (en) * | 2008-11-20 | 2009-04-22 | 重庆大学 | Multifunctional self-oscillation flow jet flow drill |
| CN103993837A (en) * | 2014-06-09 | 2014-08-20 | 平顶山市安泰华矿用安全设备制造有限公司 | High-low pressure automatic switching drill bit for hydraulic punching |
| CN204899770U (en) * | 2015-08-24 | 2015-12-23 | 河南宇建科技股份有限公司 | Brill is towards integrative device |
| CN205978621U (en) * | 2016-08-30 | 2017-02-22 | 河南铁福来装备制造股份有限公司 | Cave is made with one -way filtration formula from arranging high low -pressure water flow diverter valve of powder to water conservancy reaming |
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Address after: 467000 South North Ring Road, Pingdingshan City, Henan Province (West of Xinhua Industrial Park) Patentee after: Tiefulai Equipment Manufacturing Group Co.,Ltd. Address before: 467000 South North Ring Road, Pingdingshan City, Henan Province (West of Xinhua Industrial Park) Patentee before: HENAN TIEFULAI EQUIPMENT MANUFACTURING Co.,Ltd. |