CN107893625A - A kind of hydraulic drill of new structure - Google Patents
A kind of hydraulic drill of new structure Download PDFInfo
- Publication number
- CN107893625A CN107893625A CN201711384373.3A CN201711384373A CN107893625A CN 107893625 A CN107893625 A CN 107893625A CN 201711384373 A CN201711384373 A CN 201711384373A CN 107893625 A CN107893625 A CN 107893625A
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- China
- Prior art keywords
- outer shell
- piston
- guiding valve
- new structure
- hydraulic drill
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000013016 damping Methods 0.000 claims abstract description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 60
- 239000000543 intermediate Substances 0.000 claims description 57
- 239000010985 leather Substances 0.000 claims description 46
- 229910052757 nitrogen Inorganic materials 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 4
- 238000005457 optimization Methods 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B1/00—Percussion drilling
- E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable
Landscapes
- 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)
- Fluid-Damping Devices (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention discloses a kind of hydraulic drill of new structure, including outer shell, the axial direction of outer shell interior edge outer shell is disposed with rear end element, intermediate and front end body, being equipped with intermediate and front end body can be with reciprocating piston, piston is driven by water circulation mechanism, and one end of outer shell is provided with the damping that can absorb vibrations caused by piston impact bounce-back.The present invention is by setting guiding valve, it is motion in the same direction to realize piston and rush drawback movement with guiding valve, breach traditional relative motion feature, axial distance is short, and by piston and slide-valve design on the same axis, piston moves in the endoporus of guiding valve, a kind of such design causes device overall volume to greatly reduce, outer cylinder body is very regular cylinder simultaneously, processing is simple, and light material processing can be selected in the outer cylinder body of the present invention, weight saving, by setting damping, absorb and shaken caused by piston impact bounce-back, then reduce the vibrations of rock drill.
Description
Technical field
The invention is related to a kind of hydraulic drill, relate in particular to a kind of mining, highway, railway, water conservancy,
The hydraulic drill of the new structure used in tunnel construction engineering, belongs to technical field of engineering machinery.
Background technology
The operation principle of water rock drill is：Hydraulic drill is using water under high pressure as power, is lived by being controlled with flow control valve
Plug moves back and forth, during stroke, piston impact drill steel and bore bit chisel crushed rocks；When independent slew gear or backward stroke of the piston, drive
Drill steel and bore bit turn round certain angle.Continuous impact, revolution make drill steel and bore bit dig out circular blasthole on rock.
Present hydraulic drill is all the improvement on the basis of hydraulic gate, and piston is designed to parallel cloth with flat valve
Put mode.The problem of so existing be：1. rock drill profile is big, rock drill weight, operate hard, labor intensity is big.2. live
Plug directly coordinates with cylinder body, and as piston moves back and forth in cylinder body, cylinder inner bore becomes big because of abrasion, it is impossible to is continuing with needing
Change.Thus form the serious waste of material.For engineers and technicians as rock drill industry, exist in face of now
New existing to substitute of insufficient necessary exploitation, so as to lift hydraulic drill technology.
The content of the invention
The technical problem to be solved in the present invention is to overcome the above-mentioned deficiency of prior art, there is provided a kind of both to reduce piston
With the friction of cylinder body, can absorb again piston impact bounce-back caused by vibrations new structure hydraulic drill.
To solve the above problems, the present invention uses following technical scheme：A kind of hydraulic drill of new structure, including it is outer
Cylinder, the axial direction of outer shell interior edge outer shell are disposed with rear end element, intermediate and front end body, and being equipped with intermediate and front end body can
With reciprocating piston, piston is driven by water circulation mechanism, and one end of outer shell, which is provided with to absorb piston impact and rebound, draws
The damping of the vibrations risen.
It is further optimization of the present invention to such scheme below：The damping includes the leather cup that section is arcuate,
Leather cup is arranged on the rear end of the leather cup seat of convex structure, and leather cup seat is coaxially assemblied in the rear end of outer shell.
Further optimization：The inlet opening of " ＜ " type structure through leather cup seat front/rear end is offered on the leather cup seat.
Further optimization：The outside of the leather cup seat is covered with upper lid close to the position of rear end.
Further optimization：The nitrogen chamber formed between lid and leather cup is formed between the upper lid and leather cup.
Further optimization：It is provided with the upper lid and upper covers the first of upper lid communicated with the nitrogen chamber formed between leather cup
Channel of nitrogen.
Further optimization：Check valve is installed on first channel of nitrogen of the upper lid.
Further optimization：What the water circulation mechanism included coaxially assembling between intermediate and piston can move back and forth
Guiding valve.
Further optimization：On the guiding valve radial hole of guiding valve first, the footpath of guiding valve second are disposed with along the axial direction of outer shell
Xiang Kong, the radial hole of guiding valve the 3rd, the radial hole of guiding valve the 4th and the radial hole of guiding valve the 5th.
Further optimization：Position on the piston close to guiding valve front end is provided with annular protrusion.
Further optimization：Position annular array on the front end body close to rear end has the osculum of multiple front end bodies.
Further optimization：The front end of the intermediate is provided with the limiting stand of loop configuration.
Further optimization：The undercut of intermediate is offered in the intermediate close to the position at middle part, and on intermediate
The radial hole of the symmetrically arranged intermediate communicated with the undercut of intermediate, the radial hole difference of two intermediates are offered respectively
It is through to the outer surface of intermediate.
Further optimization：The outer shell communicated with the radial hole of corresponding intermediate is offered in the outer shell respectively radially to enter
Water hole.
Further optimization：Position on the outer shell close to edge offers and corresponding outer shell respectively along the axial direction of outer shell
The outer shell axial direction inlet opening that radial direction inlet opening communicates.
Further optimization：Formed and outer shell axial direction between the anterior part of annular protrusion and front end body on the piston
The intake antrum of front end body first that inlet opening communicates.
In use, pushed away respectively when water under high pressure enters rear end element intake antrum and guiding valve intake antrum from outer shell water under high pressure water inlet
Piston and guiding valve move right, and piston accelerates stroke movement to the right until impact bit shank, guiding valve end face connects with intermediate end face
Stop motion after touch, at this moment piston continue to move right impact bit shank；
When the rear end face of piston crosses three radial hole of guiding valve, undercut of the partial high pressure water through intermediate, then through intermediate
Radial hole sequentially enter outer shell radial direction inlet opening, outer shell axial direction inlet opening, the inlet opening of outer shell first, the inlet opening of outer shell second warp
The inlet opening of front end body enters the intake antrum of front end body first, the intake antrum of front end body second, and the front end face stress of piston promotes piston
Start to do drawback movement；
When backward stroke of the piston to shown position, the rear end face contact guiding valve front end face of annular protrusion promotes guiding valve to return to the left together
Cheng Yundong；
When the front end face of piston crosses the osculum of front end body, the water under high pressure of the drain chamber formed into guiding valve with front end body leads to
The osculum for crossing front end body enters the drain chamber formed between front end body and outer shell, then is discharged to outside by outer shell water under high pressure delivery port
The water tank in portion（Form water under high pressure from high to low, then the outer shell water under high pressure water inlet of outer shell is input to through high-pressure pump pressurization, thus
Form the closed cycle of water）；
At this moment the front end body first that the radial hole of guiding valve the 3rd crosses the undercut of intermediate and blocks water under high pressure into front end body enters
The passage of water cavity, the intake antrum of front end body second, backward stroke of the piston deceleration of motion are zero and start stroke accelerated motion；
Simultaneously the radial hole of guiding valve first of guiding valve, the radial hole of guiding valve second because in hole water-filling can reduce between guiding valve and intermediate
Friction, the radial hole of guiding valve the 4th for leaking through guiding valve between guiding valve and piston and guiding valve and intermediate by means of piston work
The radial hole of guiding valve the 5th of undercut and guiding valve is discharged in drain chamber among plug；
It can be rebounded when piston impact bit shank, the pause of moment occurs for the flowing of water under high pressure forward and pressure rise energy increases
Add, energy, which cannot absorb, will produce larger kick and cause the vibration of rock drill, and at this moment, water under high pressure continues through skin
The water inlet of bowl seat, makes leather cup expand the nitrogen in the nitrogen chamber formed in compression between lid and leather cup to the left and absorb energy again
Amount, mitigate vibrations.
For the present invention by setting guiding valve, it is motion in the same direction to realize piston and rush drawback movement with guiding valve, is breached traditional
Relative motion feature, axial distance is short, while guiding valve and piston structure are simple, efficiency high easy to process, and by piston and cunning
Valve designs on the same axis, and piston moves in the endoporus of guiding valve, and a kind of such design causes device overall volume significantly
Reduce, while outer cylinder body is very regular cylinder, processing is simple, and the outer cylinder body of the present invention can be selected light material and add
Work, weight saving, by setting damping, absorb and shaken caused by piston impact bounce-back, then make the vibrations of rock drill
Reduce.
The invention will be further described with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is structural representation of the present invention in embodiment；
Fig. 2 is the sectional view at A-A in Fig. 1；
Fig. 3 is the structural representation of present invention guiding valve in embodiment；
Fig. 4 is the sectional view at C-C in Fig. 3；
Fig. 5 is the sectional view at D-D in Fig. 3；
Fig. 6 is the structural representation of present invention damping in embodiment；
Fig. 7 is the side view of present invention damping in embodiment；
Fig. 8 is the structural representation of present invention front end body in embodiment；
Fig. 9 is the sectional view at E-E in Fig. 8；
Figure 10 is the structural representation of present invention intermediate in embodiment；
Figure 11 is the structural representation of present invention rear end element in embodiment；
Figure 12 is Fig. 8 side view.
In figure：1- outer shells；2- straight pins；3- rear end elements；4- guiding valves；5- intermediates；6- front ends body；7- pistons；8- is sealed
Set；The support rings of 9- first；The O-rings of 10- first；The support rings of 11- second；The O-rings of 12- second；13- three-support rings；14- the 3rd
O-ring；15- check valves；Covered on 16-；17- leather cups；18- leather cup seats；The support rings of 19- the 4th；The O-rings of 20- the 4th；Covered on 21-
The first channel of nitrogen；The second channel of nitrogen covered on 22-；The 3rd channel of nitrogen covered on 23-；24- annular protrusions；25- is limited
Position platform；The nitrogen chamber formed on H- between lid and leather cup；A1- outer shell water under high pressure water inlets；A2- outer shell water under high pressure delivery ports；Outside A3-
Cylinder shaft is to inlet opening；A4- outer shell radial directions inlet opening；The inlet opening of A5- outer shells first；The inlet opening of A6- outer shells second；C1- intermediates
Undercut；The radial hole of C2- intermediates；The osculum of D1- front ends body；The inlet opening of D2- front ends body；The footpath of B1- guiding valves first
Xiang Kong；The radial hole of B2- guiding valves second；The radial hole of B3- guiding valves the 3rd；The radial hole of B4- guiding valves the 4th；The radial hole of B5- guiding valves the 5th；
M1- rear end element intake antrums；M2- guiding valve intake antrums；M3- front ends the first intake antrum of body；M4- front ends the second intake antrum of body；M5- guiding valves
The drain chamber formed with front end body；The drain chamber formed between M6- front ends body and outer shell；Undercut among M7- pistons；E1- lives
The front end face of plug；The rear end face of E2- pistons；E3- guiding valves end face；E4- intermediates end face；E5- guiding valve front end faces；After E6- guiding valves
End face；N- slotted eyes；F- inlet openings.
Embodiment
Embodiment, as shown in Figure 1 and Figure 2, a kind of hydraulic drill of new structure, including outer shell 1, the interior edge outer shell of outer shell 1
1 axial direction is disposed with rear end element 3, intermediate 5 and front end body 6, and being equipped with intermediate 5 and front end body 6 back and forth to transport
Dynamic piston 7, piston 7 are driven by water circulation mechanism, and one end of outer shell 1, which is provided with, can absorb caused by the impacting rebound of piston 7
The damping of vibrations.
As shown in Figure 1, Figure 6, Figure 7, the damping includes the leather cup 17 that section is arcuate, and leather cup 17 is arranged on type
The rear end of the leather cup seat 18 of type structure, leather cup seat 18 are coaxially assemblied in the rear end of outer shell 1.
The inlet opening F of " ＜ " type structure through the front/rear end of leather cup seat 18 is offered on the leather cup seat 18, is so set
Meter be because when piston 7 impact bit shank when can rebound, water under high pressure forward flowing occur moment pause and pressure rise
Energy increase, energy, which cannot absorb, will produce larger kick and cause the vibration of rock drill, by setting inlet opening
F, water inlet F of the water under high pressure by leather cup seat 18 can be made, leather cup 17 is expanded compressed nitrogen to the left and is absorbed energy, mitigate shake
It is dynamic.
The outside of the leather cup seat 18 is covered with upper lid 16, front end face and the outer shell 1 of upper lid 16 close to the position of rear end
Rear end face is bolted to connection.
The position of close leather cup 17 opens up fluted on the upper lid 16, is formed between the groove and leather cup 17 such as Fig. 2 institutes
The nitrogen chamber H formed between the upper lid and leather cup that show.
It is provided with the upper lid 16 and upper covers the 3rd channel of nitrogen of upper lid communicated with the nitrogen chamber H formed between leather cup
23。
The bottom of the upper lid 16 offers the first channel of nitrogen 21 of upper lid, the first nitrogen of upper lid close to the position at edge
Gas passage 21 is connected by the second channel of nitrogen 22 of upper lid with the 3rd channel of nitrogen 23 of upper lid.
Check valve 15 is installed on first channel of nitrogen 21 of the upper lid, outside nitrogen is passed through successively by check valve 15
3rd channel of nitrogen 23 of the first channel of nitrogen 21 of upper lid, the second channel of nitrogen 22 of upper lid and upper lid enters upper lid and leather cup
Between the nitrogen chamber H that is formed.
It is O-shaped to be provided with the 4th support ring 19 and the 4th for the position of the close rear end of outer shell 1 between the leather cup seat 18 and outer shell 1
Circle 20.
As shown in Fig. 1, Fig. 6, Fig. 7, Figure 11, the position annular array of the front end of the bigger diameter end of leather cup seat 18 close to edge
Have and straight pin 2 is separately installed with four slotted eyes N, four slotted eye N, and pass through four straight pins 2 and the rear end face of rear end element 3
It is fixedly connected.
As shown in Fig. 1, Fig. 3, Fig. 4, Fig. 5, the water circulation mechanism includes what is coaxially assembled between intermediate 5 and piston 7
The guiding valve 4 that can be moved back and forth.
On the guiding valve 4 along the axial direction of outer shell 1 be disposed with the first radial hole of guiding valve B1, the second radial hole of guiding valve B2,
The radial hole B3 of guiding valve the 3rd, the radial hole B4 of guiding valve the 4th and the radial hole B5 of guiding valve the 5th.
The first radial hole of guiding valve B1, the second radial hole of guiding valve B2, the radial hole B3 of guiding valve the 3rd and guiding valve the 4th are radially
Hole B4 is separately positioned on the larger part of the top external diameter of guiding valve 4, and the radial hole B5 of guiding valve the 5th is arranged on guiding valve 4 close to front end
On the less part of external diameter.
The front end face of the top external diameter major part of guiding valve 4 is arranged to guiding valve end face E3, and the rear end face of guiding valve 4 is after guiding valve
End face E6.
The front end of the leather cup seat 18 is goed deep into certain distance in the rear end of guiding valve 4, and leather cup seat 18, guiding valve 4, the and of outer shell 1
The rear end element intake antrum M1 communicated as shown in Figure 2 and with inlet opening F is formed between rear end element 3.
It is described to form the guiding valve intake antrum communicated with rear end element intake antrum M1 between leather cup seat 18 and piston 7 in guiding valve 4
M2。
Position on the piston 7 close to the front end of guiding valve 4 is provided with annular protrusion 24, and the front end face of the annular protrusion 24 is
The front end face E1 of piston.
The front end of the piston 7 is through to the outer certain distance of the front end face of front end body 6, and is located at annular protrusion 24 on piston 7
Front end body the first intake antrum M3 communicated and the second intake antrum of front end body M4 are formed between anterior part and front end body 6.
Guiding valve is formed between the rear end face and front end body 6 of the annular protrusion 24, guiding valve 4, intermediate 5 and front end body is formed
Drain chamber M5.
As shown in Fig. 1, Fig. 8, Fig. 9, Figure 12, front end body and outer shell are surrounded between the front end body 6, intermediate 5 and outer shell 1
Between the drain chamber M6 that is formed, and the drain chamber M6 formed between front end body and outer shell by the osculum D1 of multiple front end bodies and
Guiding valve communicates with the drain chamber M5 that front end body is formed.
The osculum D1 of the multiple front end body distinguishes annular array on front end body 6 close to the position of rear end.
On the piston 7 sealing shroud 8 is coaxially equipped with close to the position of the front end of front end body 6.
The intermediate 5 is arranged between front end body 6 and rear end element 3, and is coordinated with the gap of rear end element 3 and installed.
As shown in Figure 1, Figure 10 shows, the front end of the intermediate 5 is provided with the limiting stand 25 of loop configuration, and limiting stand 25 is used for
Limit the scope of activities of guiding valve 4 and piston 7.
The rear end face of the limiting stand 25 is arranged to intermediate end face E4, and the thickness of limiting stand 25 is less than the footpath of guiding valve the 5th
Distance to hole B5 to guiding valve end face E3.
Position in the intermediate 5 close to middle part offers the undercut C1 of intermediate, and is opened up respectively on intermediate 5
There are the radial hole C2 of the symmetrically arranged intermediate communicated with the undercut C1 of intermediate, the radial hole C2 of two intermediates to pass through respectively
Wear to the outer surface of intermediate 5.
The outer shell radial direction inlet opening A4 communicated with the radial hole C2 of corresponding intermediate is offered in the outer shell 1 respectively,
And each outer shell radial direction inlet opening A4 is coaxially disposed with the radial hole C2 of corresponding intermediate respectively.
Offer close to axial direction of the position at edge along outer shell 1 on the outer shell 1 and radially intake with corresponding outer shell respectively
The outer shell axial direction inlet opening A3 that hole A4 is communicated.
The front end of each outer shell axial direction inlet opening A3 has been respectively communicated with the first inlet opening of outer shell A5, each outer shell first
Inlet opening A5 is tilted respectively is opened in outer shell 1 close to the position of front end.
Each the first inlet opening of outer shell A5 is entered by corresponding outer shell the second inlet opening A6 with front end body first respectively
Water cavity M3 connect, each the second inlet opening of outer shell A6 respectively the inclined outer shell 1 that is opened in close to the position of front end.
It is described each to pass through the water inlet of front end body respectively between outer shell the second inlet opening A6 and the first intake antrum of front end body M3
Hole D2 is connected, and the inlet opening D2 of each front end body is opened in the front end of front end body 6 respectively.
The side of the outer shell 1 offers to enter with the rear end element intake antrum M1 outer shell water under high pressures communicated close to the position of rear end
Mouth of a river A1.
The side of the outer shell 1 offers the drain chamber M6 phases formed between front end body and outer shell close to the position of front end
Logical outer shell water under high pressure water outlet A 2.
On the piston 7 undercut M7 among piston is offered close to the position of rear end.
On the excircle of the rear end element 3 the first support ring 9 and first is provided between the position of rear end and outer shell 1
O-ring 10.
The second support ring 11 and the are provided with the excircle of the intermediate 5 between the position of front end and outer shell 1
Two O-rings 12.
Three-support ring 13 and the are provided with the excircle of the front end body 6 between the position of front end and outer shell 1
Three O-rings 14.
In use, when water under high pressure enters rear end element intake antrum M1 and guiding valve intake antrum M2 from outer shell water under high pressure water inlet A 1
Piston 7 and guiding valve 4 is promoted to move right respectively, piston 7 accelerates stroke movement to the right until impact bit shank, guiding valve end face E3 is with
Mesosome end face E4 contact after stop motion, at this moment piston 7 continue to move right impact bit shank；
When the rear end face E2 of piston crosses the 3rd radial hole B3 of guiding valve, undercut C1 of the partial high pressure water through intermediate, then pass through
The radial hole C2 of intermediate sequentially enters outer shell radial direction inlet opening A4, outer shell axial direction inlet opening A3, the first inlet opening of outer shell A5, outer
Inlet opening D2s of cylinder the second inlet opening A6 through front end body enters the first intake antrum of front end body M3, front end body the second intake antrum M4, living
The front end face E1 stress of plug promotes piston 7 to start to do drawback movement；
When the backhaul of piston 7 to shown position, the rear end face of annular protrusion 24 contact guiding valve front end face E5 promote guiding valve 4 together to
Do drawback movement in a left side；
When the front end face E1 of piston crosses the osculum D1 of front end body, the drain chamber M5 formed into guiding valve and front end body height
Pressure water enters the drain chamber M6 formed between front end body and outer shell by the osculum D1 of front end body, then is gone out by outer shell water under high pressure
Mouth of a river A2 is discharged to the water tank of outside（Form water under high pressure from high to low, then the outer shell water under high pressure of outer shell 1 is input to through high-pressure pump pressurization
Water inlet A 1, thus form the closed cycle of water）；
At this moment the radial hole B3 of guiding valve the 3rd crosses the undercut C1 of intermediate and blocks water under high pressure into the front end body the of front end body 6
One intake antrum M3, the second intake antrum of front end body M4 passage, it is zero that the drawback movement of piston 7, which slows down, and beginning stroke accelerates；
Simultaneously guiding valve 4 the first radial hole of guiding valve B1, guiding valve the second radial hole B2 because in hole water-filling can reduce guiding valve 4 and intermediate
Friction between 5, the radial hole B4 of guiding valve the 4th for leaking through guiding valve 4 between guiding valve 4 and piston 7 and guiding valve 4 and intermediate 5
It is discharged to by means of the radial hole B5 of guiding valve the 5th of undercut M7 and guiding valve 4 among the piston of piston 7 in drain chamber M5；
When piston 7 impact bit shank when can rebound, water under high pressure forward flowing occur moment pause and pressure rise energy
Increase, energy, which cannot absorb, will produce larger kick and cause the vibration of rock drill, and at this moment, water under high pressure continues through
The water inlet F of leather cup seat 18, make again leather cup 17 expand lid and the nitrogen in the nitrogen chamber H that is formed between leather cup in compression to the left and
Energy is absorbed, mitigates vibrations.
For the present invention by setting guiding valve, it is motion in the same direction to realize piston and rush drawback movement with guiding valve, is breached traditional
Relative motion feature, axial distance is short, while guiding valve and piston structure are simple, efficiency high easy to process, and by piston and cunning
Valve designs on the same axis, and piston moves in the endoporus of guiding valve, and a kind of such design causes device overall volume significantly
Reduce, while outer cylinder body is very regular cylinder, processing is simple, and the outer cylinder body of the present invention can be selected light material and add
Work, weight saving, by setting damping, absorb and shaken caused by piston impact bounce-back, then make the vibrations of rock drill
Reduce.
Claims (16)
1. a kind of hydraulic drill of new structure, including outer shell（1）, outer shell（1）Interior edge outer shell（1）Axial direction be disposed with
Rear end element（3）, intermediate（5）With front end body（6）, it is characterised in that：Intermediate（5）With front end body（6）Inside being equipped with can be past
The piston moved again（7）, piston（7）Driven by water circulation mechanism, outer shell（1）One end be provided with and can absorb piston（7）Punching
Hit the damping of vibrations caused by bounce-back.
A kind of 2. hydraulic drill of new structure according to claim 1, it is characterised in that：The damping includes
Section is the leather cup of arcuate（17）, leather cup（17）Installed in the leather cup seat of convex structure（18）Rear end, leather cup seat（18）Together
Axle is assemblied in outer shell（1）Rear end.
A kind of 3. hydraulic drill of new structure according to claim 2, it is characterised in that：The leather cup seat（18）On
Offer and run through leather cup seat（18）The inlet opening of " ＜ " type structure of front/rear end（F）.
A kind of 4. hydraulic drill of new structure according to claim 3, it is characterised in that：The leather cup seat（18）'s
The outside position close to rear end is covered with lid（16）.
A kind of 5. hydraulic drill of new structure according to claim 4, it is characterised in that：The upper lid（16）With skin
Bowl（17）Between form lid and the nitrogen chamber that is formed between leather cup（H）.
A kind of 6. hydraulic drill of new structure according to claim 5, it is characterised in that：The upper lid（16）On set
It is equipped with the nitrogen chamber formed between upper lid and leather cup（H）First channel of nitrogen of the upper lid communicated（21）.
A kind of 7. hydraulic drill of new structure according to claim 6, it is characterised in that：First nitrogen of the upper lid
Gas passage（21）On check valve is installed（15）.
A kind of 8. hydraulic drill of new structure according to claim 7, it is characterised in that：The water circulation mechanism bag
Include intermediate（5）With piston（7）Between the guiding valve that can be moved back and forth that coaxially assembles（4）.
A kind of 9. hydraulic drill of new structure according to claim 8, it is characterised in that：The guiding valve（4）Upper edge
Outer shell（1）Axial direction be disposed with the radial hole of guiding valve first（B1）, the radial hole of guiding valve second（B2）, the radial hole of guiding valve the 3rd
（B3）, the radial hole of guiding valve the 4th（B4）With the radial hole of guiding valve the 5th（B5）.
A kind of 10. hydraulic drill of new structure according to claim 9, it is characterised in that：The piston（7）On lean on
Nearly guiding valve（4）The position of front end is provided with annular protrusion（24）.
A kind of 11. hydraulic drill of new structure according to claim 10, it is characterised in that：The front end body（6）
The upper position annular array close to rear end has the osculum of multiple front end bodies（D1）.
A kind of 12. hydraulic drill of new structure according to claim 11, it is characterised in that：The intermediate（5）
Front end be provided with the limiting stand of loop configuration（25）.
A kind of 13. hydraulic drill of new structure according to claim 12, it is characterised in that：The intermediate（5）
The position at interior close middle part offers the undercut of intermediate（C1）, and intermediate（5）It is upper offer respectively it is symmetrically arranged with
The undercut of intermediate（C1）The radial hole of the intermediate communicated（C2）, the radial hole of two intermediates（C2）Extend through to centre
Body（5）Outer surface.
A kind of 14. hydraulic drill of new structure according to claim 13, it is characterised in that：The outer shell（1）It is interior
The radial hole with corresponding intermediate is offered respectively（C2）The outer shell radial direction inlet opening communicated（A4）.
A kind of 15. hydraulic drill of new structure according to claim 14, it is characterised in that：The outer shell（1）On
Close to the position at edge along outer shell（1）Axial direction offer respectively and corresponding outer shell radial direction inlet opening（A4）The outer cylinder shaft communicated
To inlet opening（A3）.
A kind of 16. hydraulic drill of new structure according to claim 15, it is characterised in that：The piston（7）On
Positioned at annular protrusion（24）Anterior part and front end body（6）Between formed with outer shell axial direction inlet opening（A3）The front end body communicated
First intake antrum（M3）.
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| CN201711384373.3A CN107893625B (en) | 2017-12-20 | 2017-12-20 | Hydraulic rock drill with novel structure |
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| CN201711384373.3A CN107893625B (en) | 2017-12-20 | 2017-12-20 | Hydraulic rock drill with novel structure |
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| CN107893625B CN107893625B (en) | 2023-11-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110410444A (en) * | 2019-07-22 | 2019-11-05 | 中国铁建重工集团股份有限公司 | Active impact receiving buffer device and impact equipment |
| CN111236833A (en) * | 2019-12-31 | 2020-06-05 | 山东天瑞重工有限公司 | Hydraulic rock drill air-blast proof buffering system |
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| CN111236833A (en) * | 2019-12-31 | 2020-06-05 | 山东天瑞重工有限公司 | Hydraulic rock drill air-blast proof buffering system |
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| Publication number | Publication date |
|---|---|
| CN107893625B (en) | 2023-11-28 |
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