CN117127904A - impactor - Google Patents
impactor Download PDFInfo
- Publication number
- CN117127904A CN117127904A CN202311043046.7A CN202311043046A CN117127904A CN 117127904 A CN117127904 A CN 117127904A CN 202311043046 A CN202311043046 A CN 202311043046A CN 117127904 A CN117127904 A CN 117127904A
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- China
- Prior art keywords
- wall
- air
- compression cavity
- driving
- cavity
- Prior art date
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- 230000006835 compression Effects 0.000 claims abstract description 189
- 238000007906 compression Methods 0.000 claims abstract description 189
- 230000008602 contraction Effects 0.000 claims abstract description 35
- 238000009826 distribution Methods 0.000 claims abstract description 26
- 238000005452 bending Methods 0.000 claims description 8
- 239000011435 rock Substances 0.000 abstract description 19
- 238000005553 drilling Methods 0.000 abstract description 16
- 239000002360 explosive Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 13
- 238000004891 communication Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B1/00—Percussion drilling
- E21B1/12—Percussion drilling with a reciprocating impulse member
- E21B1/24—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure
- E21B1/30—Percussion drilling with a reciprocating impulse member the impulse member being a piston driven directly by fluid pressure by air, steam or gas pressure
Abstract
The application relates to the field of drilling equipment, in particular to an impactor, which comprises an outer sleeve, a drill bit and a piston assembly, wherein the piston assembly comprises an air distribution seat, an inner cylinder and a piston rod, the circumferential outer wall of the inner cylinder is abutted against the inner wall of the outer sleeve to form and fix, the inner cylinder is provided with a compression cavity, one end of the piston rod is slidably connected with the inner wall of the compression cavity, the other end of the piston rod is connected with the end part of the drill bit, the air distribution seat is embedded into the compression cavity and far away from the inner wall of the piston rod, a plurality of pressurizing cavities are arranged on the inner wall of the compression cavity at intervals, a plurality of expansion and contraction plates are connected onto the inner cylinder, and the expansion and contraction plates are in one-to-one correspondence with the pressurizing cavities and are embedded. According to the application, the pressurizing cavity and the thermal expansion and contraction plate are arranged, so that the thrust of compressed air in the compressing cavity to the piston rod is enhanced, the explosive force of the drill bit to rock drilling is improved, the drilling efficiency of the drill bit to the rock is improved, the drilling period of the rock is shortened, the energy loss in the use process of the impactor is reduced, and the energy-saving concept is embodied.
Description
Technical Field
The application relates to the field of drilling equipment, in particular to an impactor.
Background
The impactor is basic equipment required for drilling engineering, wherein the pneumatic impactor is also called pneumatic impactor, takes compressed air as a power medium, and utilizes the energy of the compressed air to generate a hole bottom power tool for continuously impacting load.
The application patent with the publication number of CN102606066A discloses an impactor, which comprises a drill bit, a gas distribution rod and a piston; the device also comprises a front joint, a rear joint, an outer sleeve and a guide sleeve; the front joint is connected with one end of the outer sleeve by means of a steel wire thread sleeve, the guide sleeve is connected with the other end of the outer sleeve by means of a steel wire thread sleeve, and the front joint is connected with the other end of the guide sleeve by means of a steel wire thread sleeve; the drill bit is connected with the front joint by virtue of a check ring and a limiting steel ball; the rear end of the air distribution rod is fixedly connected with the rear joint by means of an air distribution rod lock nut.
In practical use, the impact force of the end part of the drill bit on the rock depends on the air compression amount between the piston and the piston which slides on the inner wall of the outer sleeve in the direction close to the gas distribution rod, so that the explosive force of the drill bit on the rock drilling is weaker, and the drilling efficiency of the drill bit on the rock is reduced.
Disclosure of Invention
In order to improve the problem of the efficiency of the drill bit to the rock, the application provides a impactor.
The application provides an impactor, which adopts the following technical scheme:
the utility model provides an impacter, includes outer tube, bore bit and piston subassembly, the piston subassembly imbeds the outer tube inner chamber and is connected with the bore bit end, the piston subassembly includes gas distribution seat, interior jar and piston rod, interior jar circumference outer wall supports tightly outer tube inner wall and forms fixedly, interior jar has compression chamber, compression chamber intercommunication outer tube inner chamber, piston rod one end sliding connection is at compression chamber inner wall, the piston rod other end is connected with the bore bit end, gas distribution seat imbeds the inner wall that compression chamber kept away from the piston rod, compression chamber inner wall interval is equipped with a plurality of pressure boost chambeies, be connected with a plurality of expend with heat and contract with cold boards on the interior jar, expend with heat and contract with cold board and pressure boost chamber one-to-one and imbeds; when the piston rod slides towards the direction close to the air distribution seat, air in the compression cavity is compressed and heated, and the expansion and contraction plate is heated and expanded and extrudes air in the compression cavity.
Through adopting above-mentioned technical scheme, when the impactor is used, the compression intracavity wall interval is equipped with a plurality of pressure boost chambeies, realize the increase of the air reserve in the compression intracavity, the piston rod slides towards the direction that is close to the gas holder, drive the compression chamber air between gas holder and the piston rod and be compressed, realize the preliminary compression to the air in the compression intracavity, compressed air intensification in the compression intracavity, expend with heat and contract with cold board and pressure boost chamber one-to-one and imbeds the pressure boost intracavity, compressed air in the compression intracavity will be partly heat energy heat transfer for expend with heat and contract with heat board, expend with heat and contract with cold board intensification inflation and the air in the compression intracavity, further improve the compression to the air in the compression chamber, make the compressed air to the thrust enhancement of piston rod in the compression chamber, promote the explosive force of bore bit to rock drilling, thereby lead to the bore hole efficiency improvement of bore bit to rock, shorten the drilling cycle to rock, thereby reduce the energy loss in the impactor use, embody energy-conserving notion.
Optionally, expend with heat and contract with cold board sliding connection is on the pressure boost intracavity wall, expend with heat and contract with cold board circumference outer wall supports tight pressure boost intracavity wall and forms sealedly, pressure boost intracavity wall has seted up air flue one, air flue one end is located expend with heat and contract with cold board and keeps away from one side of compression chamber, air flue one other end extends towards the direction that is close to the piston rod, works as piston rod sliding connection is at compression intracavity wall, air in the air flue one intensifies and expands and drives expend with heat and contract with cold board towards the direction that is close to the compression chamber and slide.
Through adopting above-mentioned technical scheme, air flue one-to-one orientation expend with heat and contract cold board is kept away from one side of compression chamber, air flue one other end orientation is close to the direction extension of piston rod, when piston rod sliding connection is at compression intracavity wall, partial kinetic energy between piston rod outer wall and the compression intracavity wall converts into the heat energy of piston rod outer wall and compression intracavity wall, compression intracavity wall gives the air in the air flue one with partial heat energy heat transfer, air in the air flue one heats up and expands and drives expend with heat and contract with cold board along the direction that the pressure boost intracavity wall was close to the compression chamber slides, the air in the compression chamber compresses, further improve the thrust size of compression air in the compression chamber to the piston rod, promote the explosive force of bore bit to rock, realize converting the heat energy into kinetic energy stability, thereby reduce the loss of energy, embody the concept of environmental protection.
Optionally, the end connection that expend with heat and contract with cold board towards air flue one has the slider, the spout that supplies the slider to slide is seted up to the pressure boost intracavity wall.
Through adopting above-mentioned technical scheme, the air in the first air flue of slider terminal surface orientation air flue, air heating expansion and order about the slider at spout inner wall slip in the first air flue, drive expend with heat and contract with cold board sliding connection at the pressure boost intracavity wall and compress the air in the compression chamber, make expend with heat and contract with cold board be difficult for breaking away from the pressure boost chamber to improve expend with heat and contract with cold board at the stability that pressure boost intracavity wall slided.
Optionally, the compression cavity is close to the inner wall of the gas distribution seat and is provided with a plurality of second gas passages at intervals, the first gas passages are in one-to-one correspondence and are communicated with the second gas passages, the inner cylinder is provided with a plurality of opening and closing components, the opening and closing components are in one-to-one correspondence with the second gas passages, the opening and closing components are used for controlling the on-off of the second gas passages, and when the gas pressure in the compression cavity is increased, the opening and closing components separate the second gas passages from the compression cavity; when the air pressure in the compression cavity is reduced, the opening and closing component is communicated with the second air passage and the compression cavity.
By adopting the technical scheme, when the piston rod slides towards the direction close to the air distribution seat, the air pressure in the compression cavity is increased, and the opening and closing assembly separates the air passage II from the compression cavity, so that air in the compression cavity is not easy to enter the air passage II, and the stable compression of the piston rod on the air in the compression cavity is realized; when the piston rod slides towards the direction far away from the air distribution seat, the air pressure in the compression cavity is reduced, the opening and closing component is communicated with the air passage II and the compression cavity, the air in the air passage I is heated and expanded to enter the compression cavity through the air passage II, the air reserve in the compression cavity is increased, the compressed air in the compression cavity drives the driving force of the piston rod to slide to be increased, and therefore the explosive force of the drill bit to rock is improved.
Optionally, the subassembly is opened and close including drive plate, elastic component and driving piece, the drive plate rotates to be connected at compression intracavity wall, the one end of elastic component elasticity direction is connected on compression intracavity wall, the other end of elastic component elasticity direction is connected at drive plate axis of rotation terminal surface, the elastic component has elasticity and drives the drive plate and rotate the trend towards the direction of keeping away from air flue two, the driving piece is connected on compression intracavity wall, the driving piece drive end is towards the drive plate axis of rotation, the driving piece intensification inflation butt drive plate terminal surface and drive the drive plate towards the direction that is close to air flue two rotate and seal air flue two.
By adopting the technical scheme, when the piston rod slides towards the direction close to the air distribution seat, the air in the compression cavity is driven to be compressed, part of kinetic energy is converted into heat energy by the compressed air in the compression cavity, part of heat energy is transferred to the driving piece by the compressed air in the compression cavity, the end face of the driving piece is heated and expanded to be abutted against the end face of the driving plate, and the driving plate is driven to slide towards the direction close to the air passage II and close the air passage II, so that the piston rod stably compresses the air in the compression cavity; when the piston rod slides in the direction away from the gas distribution seat, the air pressure in the compression cavity is reduced, the air in the compression cavity converts heat energy into kinetic energy, the driving piece transfers part of heat energy to the air in the compression cavity, the driving piece is cooled and contracted, the pressure of the driving piece on the driving plate disappears, the elastic piece drives the driving plate to rotate in the direction away from the second air passage, the closing effect of the second air passage disappears, and the heated expansion air in the first air passage passes through the second air passage and enters the compression cavity, so that the air reserve in the compression cavity is improved.
Optionally, the driving piece includes actuating lever and expend with heat and contract with cold pole, expend with heat and contract with cold pole one end is connected on compression intracavity wall, the actuating lever tip is connected to expend with heat and contract with cold pole other end, the other end that expend with heat and contract with cold pole is kept away from to the actuating lever is towards the actuating plate axis of rotation terminal surface, works as expend with heat and contract with cold pole intensification inflation and drive actuating lever to slide towards the direction that is close to the actuating plate, actuating lever terminal surface butt actuating plate terminal surface and drive actuating plate rotate towards the direction that is close to second air flue.
Through adopting above-mentioned technical scheme, expend with heat and contract with cold pole one end is connected on compression intracavity wall, expend with heat and contract with cold pole other end is connected at the actuating lever tip, the actuating lever is kept away from expend with heat and contract with cold pole's tip towards the actuating plate axis of rotation terminal surface, when expend with heat and contract with cold pole intensification expansion, drive the actuating lever towards the direction that is close to the actuating plate axis of rotation and slide, actuating lever terminal surface butt actuating plate axis of rotation terminal surface and drive the actuating plate to rotate and seal air flue two towards the direction that is close to air flue two, realize opening and close to air flue two's automation, need not opening and close of external power equipment control air flue two, reduce the manufacturing cost of impacter.
Optionally, a positioning groove for embedding the end part of the driving rod is formed in the end surface of the driving plate, which is far away from the second air passage.
Through adopting above-mentioned technical scheme, actuating lever tip orientation constant head tank, expend with heat and contract with cold pole intensification inflation and drive actuating lever to slide towards the direction that is close to the constant head tank, actuating lever tip embedding constant head tank is interior, and the actuating lever outer wall supports tight constant head tank inner wall and forms spacingly, and the actuating lever drives the drive plate and rotates and shelter from air flue two towards the direction that is close to air flue two, realizes the self-closing to air flue two.
Optionally, the actuating lever is connected with the slug towards the inner wall in compression chamber, the caulking groove that supplies the slug to slide is seted up to compression chamber inner wall.
Through adopting above-mentioned technical scheme, when the actuating lever slides along compression intracavity wall towards the direction that is close to the actuating plate, the abaculus sliding connection is at the caulking groove inner wall, and direction actuating lever terminal surface butt actuating plate terminal surface and order about the actuating plate and rotate and seal air flue two towards the direction that is close to air flue two, guarantee that the actuating lever orders about actuating plate pivoted stability.
Optionally, the compression intracavity wall has offered the drive chamber that holds the drive plate, drive chamber intercommunication air flue two, works as when the drive plate embedding drive intracavity, the drive plate terminal surface flushes with the compression intracavity wall.
Through adopting above-mentioned technical scheme, when the drive plate rotates towards the direction that is close to air flue two, direction drive plate embedding drive intracavity, the drive plate terminal surface flushes with compression intracavity wall, makes the drive plate be difficult for encroaching the space occupation ratio of compression intracavity to guarantee the air reserve in the compression chamber.
Optionally, the inner cylinder is connected with a plurality of spacing bent plates, and is a plurality of spacing bent plates are in proper order the interval connection on the compression chamber inner wall, spacing bent plate and driving piece one-to-one, spacing bent plate cladding expend with heat and contract with cold pole is kept away from the terminal surface of actuating lever.
Through adopting above-mentioned technical scheme, spacing bent plate cladding expend with heat and contract with cold pole keeps away from the terminal surface of actuating lever, orders about expend with heat and contract with cold pole towards the direction intensification inflation that is close to the actuating lever, drives the actuating lever and slides towards the direction that is close to the actuating plate to improve the stability that the actuating lever slided at compression chamber inner wall.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the arrangement of the pressurizing cavity and the thermal expansion and contraction plate enhances the thrust of compressed air in the compression cavity to the piston rod, improves the explosive force of the drill bit to rock drilling, improves the drilling efficiency of the drill bit to the rock, shortens the drilling period of the rock, reduces the energy loss in the use process of the impactor, and reflects the concept of energy conservation;
2. the first air passage is arranged, so that the explosive force of the drill bit to the rock is improved, the stability of converting heat energy into kinetic energy is realized, the loss of energy is reduced, and the concept of environmental protection is embodied;
3. the arrangement of the opening and closing assembly and the air passage II increases the air reserve in the compression cavity, so that the driving force of the compressed air in the compression cavity for driving the piston rod to slide is increased, and the explosion force of the drill bit to the rock is improved.
Drawings
Fig. 1 is a schematic overall structure of an embodiment of the present application.
Fig. 2 is a cross-sectional view of an inner cylinder and valve seat in an embodiment of the present application.
Fig. 3 is an enlarged view at a in fig. 2.
FIG. 4 is a schematic view of the overall structure of the opening and closing assembly and the spacing bending plate in an embodiment of the present application.
Reference numerals illustrate: 1. an outer sleeve; 2. a drill bit; 3. a piston assembly; 31. a gas distribution seat; 311. a fixing part; 312. a sealing part; 32. an inner cylinder; 321. a compression chamber; 322. an air inlet hole I; 323. an air outlet hole; 324. an air inlet II; 325. a pressurizing chamber; 326. an air passage I; 3261. a connection section; 3262. an expansion section; 327. a chute; 328. an air passage II; 3281. a control section; 3282. a communication section; 329. a drive chamber; 3210. a caulking groove; 33. a piston rod; 331. an exhaust hole; 4. a thermal expansion and contraction plate; 5. a slide block; 6. an opening and closing assembly; 61. a driving plate; 611. a positioning groove; 62. an elastic member; 63. a driving member; 631. a driving rod; 632. a thermal expansion and contraction rod; 7. an insert; 8. limiting bending plates; 81. and a limiting cavity.
Detailed Description
The application is described in further detail below with reference to fig. 1-4.
The embodiment of the application discloses an impactor. Referring to fig. 1, the impactor comprises an outer sleeve 1, a drill bit 2 and a piston assembly 3, wherein in the embodiment of the application, the outer sleeve 1 is a cylindrical pipe, the piston assembly 3 is embedded into an inner cavity of the outer sleeve 1 to form fixation, the end part of the drill bit 2 is coaxially embedded into the inner cavity of the outer sleeve 1 and is connected with the piston assembly 3, and the piston assembly 3 drives the end part of the drill bit 2 protruding out of the outer sleeve 1 to impact the rock end surface, so that the drilling of the rock end surface is realized.
Referring to fig. 1 and 2, a piston assembly 3 includes a valve seat 31, an inner cylinder 32 and a piston rod 33, in the embodiment of the present application, the inner cylinder 32 is a cylindrical tube, one end of the inner cylinder 32 in the axial direction is coaxially provided with a compression cavity 321, the compression cavity 321 penetrates through the outer wall of the inner cylinder 32 along the axial line of the inner cylinder 32, a plurality of first air inlets 322 are uniformly arranged on the circumferential outer wall of the inner cylinder 32 at intervals, the first air inlets 322 are communicated with the compression cavity 321, a plurality of air outlets 323 are uniformly arranged on the circumferential outer wall of the inner cylinder 32 far from the first air inlets 322 at intervals, and the air outlets 323 are communicated with the compression cavity 321; a plurality of second air inlet holes 324 are uniformly formed in the peripheral outer wall of the inner cylinder 32 at intervals, the second air inlet holes 324 are communicated with the compression cavity 321, and the second air inlet holes 324 are positioned between the first air inlet holes 322 and the air outlet holes 323.
Referring to fig. 1 and 2, the air distribution seat 31 includes a fixing portion 311 and a sealing portion 312, in this embodiment of the present application, the fixing portion 311 and the sealing portion 312 are both cylindrical rods, the diameter of the fixing portion 311 is greater than that of the sealing portion 312, and an end portion of the sealing portion 312 is coaxially welded and fixed on an end face of the fixing portion 311. The exhaust hole 331 is coaxially formed at one end of the piston rod 33 in the axial direction, the exhaust hole 331 penetrates through the outer wall of the piston rod 33 along the axis of the exhaust hole 331, and the inner diameter of the exhaust hole 331 is equal to the inner diameter of the sealing part 312.
Referring to fig. 1 and 2, one end of a piston rod 33 is slidably connected to the inner wall of the compression chamber 321, the sliding direction of the piston rod 33 and the axis of the inner cylinder 32 are parallel to each other, the other end of the piston rod 33 abuts against the end of the drill bit 2 to form a connection, and the piston rod 33 is located at one side of the inner cylinder 32 close to the first air inlet hole 322 and the second air inlet hole 324. The gas distribution seat 31 is coaxially embedded into the inner wall of the compression cavity 321 far away from the piston rod 33, the circumferential outer wall of the fixing part 311 abuts against the inner wall of the compression cavity 321 to form fixation, the end part of the sealing part 312 far away from the fixing part 311 is used for being embedded into the exhaust hole 331 to form sealing, and the gas distribution seat 31 is positioned on one side of the inner cylinder 32 close to the gas outlet hole 323.
Referring to fig. 1 and 2, a plurality of pressurizing cavities 325 are uniformly arranged on the inner wall of the compression cavity 321 at intervals, the pressurizing cavities 325 are located between the piston rod 33 and the air distribution seat 31, and a plurality of expansion and contraction plates 4 are connected to the inner cylinder 32, and in the embodiment of the application, the expansion and contraction plates 4 are made of nylon and have higher thermal expansion coefficients. The expansion and contraction plates 4 are in one-to-one correspondence with the pressurizing cavities 325, the expansion and contraction plates 4 are embedded into the inner walls of the pressurizing cavities 325 to form limit, and the circumferential outer walls of the expansion and contraction plates 4 are abutted against the inner walls of the pressurizing cavities 325 to form seal.
Referring to fig. 1 and 2, a first air passage 326 is formed in the pressurizing cavity 325 near the bottom wall of the piston rod 33, the first air passage 326 is located at one side of the expansion board 4 far away from the compressing cavity 321, the first air passage 326 includes a connecting section 3261 and an expanding section 3262, in the embodiment of the application, the connecting section 3261 and the expanding section 3262 are both bar-shaped cavities, one end of the connecting section 3261 is communicated with the pressurizing cavity 325, the other end of the connecting section 3261 is communicated with the expanding section 3262, the length direction of the expanding section 3262 is parallel to the axis of the inner cylinder 32, and the end of the length direction of the expanding section 3262 far away from the connecting section 3261 extends towards the direction near the piston rod 33.
Referring to fig. 1 and 2, the end of the expansion and contraction plate 4 facing the connecting section 3261 is fixed with a sliding block 5, the inner wall of the pressurizing cavity 325 is provided with a sliding groove 327 for sliding the sliding block 5, the sliding groove 327 is communicated with the connecting section 3261, and the end surface of the sliding block 5 faces the end of the connecting section 3261 far away from the expansion section 3262. When the piston rod 33 slides towards the direction close to the air distribution seat 31, the end part of the sealing part 312 is embedded into the inner wall of the exhaust hole 331 to form sealing, part of kinetic energy between the outer wall of the piston rod 33 and the inner wall of the compression cavity 321 is converted into heat energy, the inner wall of the compression cavity 321 transfers part of heat energy to air in the expansion section 3262, the air in the expansion section 3262 heats up and expands and enters the sliding groove 327 through the connecting section 3261 to extrude the sliding block 5, the expansion air in the connecting section 3261 drives the sliding block 5 to slide towards the direction close to the compression cavity 321 along the inner wall of the sliding groove 327, the expansion and contraction plate 4 is driven to slide towards the direction close to the axis of the inner cylinder 32 along the inner wall of the pressurizing cavity 325, the space ratio in the compression cavity 321 is reduced, air pressurizing in the compression cavity 321 is realized, part of kinetic energy is converted into heat energy when the air pressurizing in the compression cavity 321, part of heat energy is transferred to the expansion and contraction plate 4 by the compression air in the compression cavity 321, the expansion plate 4 heats up and extrudes the air in the compression cavity 321, the compression amount of the air in the compression cavity 321 is improved, the impact force of the compression air in the compression cavity 33 is increased, the compression force of the compression air in the compression cavity 321 is promoted, the compression force of the compression cavity 2 on the compression cavity is improved, the compression force of the piston rod 32 is driven, the compression force in the compression force of the compression force in the direction of the compression cavity, the compression force in the direction of the compression force of the compression cavity 2 towards the compression head, and the compression device, so that the compression energy consumption of the compression device is reduced, and the impact energy efficiency.
Referring to fig. 2, the compression chamber 321 is adjacent to the inner wall of the gas holder 31, and a plurality of second air passages 328 are uniformly arranged at intervals, the second air passages 328 are in one-to-one correspondence with and communicated with the first air passages 326, and the second air passages 328 are positioned between the pressurizing chamber 325 and the gas outlet 323. The second air passage 328 includes a control section 3281 and a communication section 3282, one end of the control section 3281 is communicated with the compression cavity 321, the other end of the control section 3281 is communicated with the communication section 3282, in the embodiment of the application, the control section 3281 and the communication section 3282 are both bar-shaped cavities, and the end of the communication section 3282 away from the control section 3281 in the length direction extends towards the direction close to the connection section 3261 and is communicated with the connection section 3261.
Referring to fig. 3 and 4, the inner cylinder 32 is connected with a plurality of opening and closing assemblies 6, the opening and closing assemblies 6 are in one-to-one correspondence with the air passages two 328, and the opening and closing assemblies 6 are used for controlling the on-off of the air passages two 328. The opening and closing assembly 6 comprises a driving plate 61, an elastic piece 62 and a driving piece 63, wherein a plurality of driving cavities 329 are uniformly arranged on the inner wall of the compression cavity 321 at intervals, and the driving cavities 329 are in one-to-one correspondence and communicated with the air passages two 328. The material of the driving plate 61 may be rubber or silica gel, and in the embodiment of the present application, the material of the driving plate 61 is rubber, which has a certain deformability. When the driving plate 61 rotates in the direction approaching to the second air passage 328, one end of the driving plate 61 abuts against the inner wall of the driving cavity 329 and seals the second air passage 328, and the other end of the driving plate 61 is flush with the inner wall of the compression cavity 321, so that the second air passage 328 is sealed.
Referring to fig. 3 and 4, the elastic member 62 may be a tension spring or a torsion spring, and in the embodiment of the present application, the elastic member 62 is a torsion spring, and has a certain deformability. One end of the elastic member 62 in the elastic direction is connected to the inner wall of the compression chamber 321, the other end of the elastic member 62 in the elastic direction is connected to the end surface of the rotation shaft of the driving plate 61, and the elastic member 62 has a tendency of elastically driving the driving plate 61 to rotate in a direction approaching to the axis of the inner cylinder 32.
Referring to fig. 3 and 4, the driving member 63 includes a driving rod 631 and a heat expansion and cold contraction rod 632, and in the embodiment of the present application, the heat expansion and cold contraction rod 632 is made of nylon, which has a better thermal expansion coefficient, and in the embodiment of the present application, the driving rod 631 is made of elastic steel, which has a certain deformability, and the elastic coefficient of the driving rod 631 is greater than that of the elastic member 62. One end of the expansion rod 632 is fixed on the inner wall of the compression cavity 321, the other end of the expansion rod 632 is coaxially fixed at the end part of the driving rod 631, the other end of the driving rod 631 faces the end face of the driving plate 61 rotating shaft, the end face of the driving rod 631 facing the inner wall of the compression cavity 321 is fixed with an embedded block 7, an embedded groove 3210 for sliding the embedded block 7 is formed in the inner wall of the compression cavity 321, the embedded groove 3210 is a strip-shaped groove, the length direction of the embedded groove 3210 and the axis of the inner cylinder 32 are parallel, and the length direction of the embedded groove 3210 and the rotating axis of the driving plate 61 are perpendicular to each other.
Referring to fig. 1 and 3, the end surface of the driving plate 61 near the driving rod 631 is provided with a positioning groove 611 for embedding the end of the driving rod 631, the positioning groove 611 is communicated with a caulking groove 3210, in the embodiment of the present application, the positioning groove 611 is a bar-shaped groove, and the length direction of the positioning groove 611 and the rotation axis of the driving plate 61 are mutually perpendicular. When the piston rod 33 slides in the direction close to the air distribution seat 31, part of kinetic energy is converted into heat energy by compressing air in the compression cavity 321, the temperature of the air in the compression cavity 321 is raised, part of heat energy is transferred to the expansion and contraction rod 632 by high-temperature air in the compression cavity 321, the expansion and contraction rod 632 is heated and expanded, the driving rod 631 is driven to slide in the direction close to the positioning groove 611, the end part of the driving rod 631 is embedded into the positioning groove 611, the outer wall of the driving rod 631 abuts against the inner wall of the positioning groove 611, the driving plate 61 is driven to rotate in the direction close to the second air channel 328, the end face of the driving plate 61 abuts against the inner wall of the second air channel 329, the second air channel 328 is closed, separation of the second air channel 328 and the compression cavity 321 is achieved, the air in the compression cavity 321 is not easy to enter the first air channel 326 through the second air channel 328, and the stability of the compression of the piston rod 33 on air compression in the compression cavity 321 is improved.
Referring to fig. 1 and 3, when the piston rod 33 slides in a direction away from the valve seat 31, the air pressure in the compression chamber 321 is reduced, the air depressurized in the compression chamber 321 converts part of heat energy into kinetic energy, the heat expansion and contraction rod 632 transfers part of heat energy to the air in the compression chamber 321, the heat expansion and contraction rod 632 cools down and contracts and drives the driving rod 631 to slide in a direction away from the positioning groove 611, and the end of the driving rod 631 is separated from the positioning groove 611, so that the abutting force of the driving rod 631 on the driving plate 61 is eliminated.
Referring to fig. 2 and 4, the elastic force of the elastic member 62 drives the driving plate 61 to rotate in a direction away from the second air passage 328, so that the sealing effect of the driving plate 61 on the second air passage 328 is eliminated, the second air passage 328 is communicated with the compression cavity 321, and the heated expansion air in the expansion section 3262 sequentially passes through the connection section 3261, the communication section 3282, the control section 3281, the driving cavity 329 and enters the compression cavity 321, so that the air reserve in the compression cavity 321 is increased.
Referring to fig. 3, the inner cylinder 32 is connected with a plurality of limiting bending plates 8, and the limiting bending plates 8 are sequentially welded and fixed on the inner wall of the compression cavity 321 at intervals. Spacing bent plate 8 and expend with heat and contract with cold pole 632 one-to-one, spacing chamber 81 that holds expend with heat and contract with cold pole 632 tip has been seted up to the terminal surface of expend with heat and contract with cold pole 632, expend with heat and contract with cold pole 632 keeps away from the tip of actuating lever 631 and supports tight spacing chamber 81 inner wall formation fixedly, when expend with heat and contract with cold pole 632 intensification expansion, spacing chamber 81 inner wall supports tight expend with heat and contract with cold pole 632 circumference outer wall and order about expend with heat and contract with cold pole 632 to be close to the direction deformation of actuating plate 61, drive actuating lever 631 and slide towards the direction that is close to actuating plate 61, thereby improve expend with heat and contract with cold pole 632 and order about the stability that actuating lever 631 slides.
The implementation principle of the impactor provided by the embodiment of the application is as follows: when the impactor is used, the piston rod 33 slides towards the direction close to the air distribution seat 31, the end part of the sealing part 312 is embedded into the inner wall of the exhaust hole 331 to form sealing, part of kinetic energy between the outer wall of the piston rod 33 and the inner wall of the compression cavity 321 is converted into heat energy, the inner wall of the compression cavity 321 transfers part of heat energy to air in the expansion section 3262, air in the expansion section 3262 heats up and expands and enters the sliding groove 327 through the connecting section 3261 to extrude the sliding block 5, the expansion air in the connecting section 3261 drives the sliding block 5 to slide towards the direction close to the compression cavity 321 along the inner wall of the sliding groove 327, the expansion and contraction plate 4 is driven to slide towards the direction close to the axis of the inner cylinder 32 along the inner wall of the pressurizing cavity 325, the space ratio in the compression cavity 321 is reduced, air pressurizing in the compression cavity 321 is realized, part of kinetic energy is converted into heat energy during pressurizing of the air in the compression cavity 321, part of heat energy is transferred to the expansion and contraction plate 4, the temperature of the expansion and contraction plate 4 heats up and extrudes the air in the compression cavity 321, the compression amount of the air in the compression cavity 321 is increased, the compression amount of the compression air in the compression cavity 321 is increased, the compression air in the compression cavity 33 is pushed by the compression air in the compression cavity 2, the compression cavity 2 is pushed towards the compression cavity 32, the compression efficiency of the drill bit is reduced, the bit 2, the impact efficiency of the drill bit is shortened, and the drilling efficiency of the drilling efficiency is realized, and the impact period of the drill bit is shortened, and the impact period of the drill is realized, and the device is used.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (10)
1. The impactor is characterized in that: the novel high-pressure piston comprises an outer sleeve (1), a drill bit (2) and a piston assembly (3), wherein the piston assembly (3) is embedded into an inner cavity of the outer sleeve (1) and is connected with the end part of the drill bit (2), the piston assembly (3) comprises a gas distribution seat (31), an inner cylinder (32) and a piston rod (33), the circumferential outer wall of the inner cylinder (32) is abutted against the inner wall of the outer sleeve (1) to form and fix, the inner cylinder (32) is provided with a compression cavity (321), the compression cavity (321) is communicated with the inner cavity of the outer sleeve (1), one end of the piston rod (33) is slidably connected to the inner wall of the compression cavity (321), the other end of the piston rod (33) is connected with the end part of the drill bit (2), the gas distribution seat (31) is embedded into the inner wall of the compression cavity (321) far away from the piston rod (33), a plurality of pressurizing cavities (325) are arranged on the inner wall of the compression cavity (321), a plurality of expansion plates (4) are connected to the inner cylinder (32), and the expansion plates (4) are in one-to-one correspondence with the pressurizing cavities (325) and are embedded; when the piston rod (33) slides towards the direction close to the air distribution seat (31), air in the compression cavity (321) is compressed and heated, and the expansion and contraction plate (4) is heated and expanded and extrudes air in the compression cavity (321).
2. The impactor as defined in claim 1, wherein: the utility model discloses a compression cavity (321) of air conditioner, including compression cavity (321) and piston rod (33), compression cavity (321) inner wall is connected to air flue (326), expansion and contraction board (4) sliding connection is on compression cavity (325) inner wall, expansion and contraction board (4) circumference outer wall supports tight pressure cavity (325) inner wall and forms sealedly, first air flue (326) one end is located one side that compression cavity (321) was kept away from to expansion and contraction board (4), first air flue (326) other end extends towards the direction that is close to piston rod (33), works as when piston rod (33) sliding connection is at compression cavity (321) inner wall, the air in first air flue (326) intensification expansion and order about expansion and contraction board (4) to slide towards the direction that is close to compression cavity (321).
3. The impactor of claim 2, wherein: the end part of the expansion board (4) facing the first air passage (326) is connected with a sliding block (5), and the inner wall of the pressurizing cavity (325) is provided with a sliding groove (327) for sliding the sliding block (5).
4. The impactor of claim 2, wherein: the compression cavity (321) is close to the inner wall of the air distribution seat (31) and is provided with a plurality of air passages II (328) at intervals, the air passages I (326) and the air passages II (328) are in one-to-one correspondence and are communicated, the inner cylinder (32) is provided with a plurality of opening and closing components (6), the opening and closing components (6) are in one-to-one correspondence with the air passages II (328), the opening and closing components (6) are used for controlling the on-off of the air passages II (328), and when the air pressure in the compression cavity (321) is increased, the opening and closing components (6) separate the air passages II (328) from the compression cavity (321); when the air pressure in the compression cavity (321) is reduced, the opening and closing component (6) is communicated with the air passage II (328) and the compression cavity (321).
5. The impactor as defined in claim 4, wherein: the opening and closing assembly (6) comprises a driving plate (61), an elastic piece (62) and a driving piece (63), wherein the driving plate (61) is rotationally connected to the inner wall of the compression cavity (321), one end of the elastic piece (62) in the elastic direction is connected to the inner wall of the compression cavity (321), the other end of the elastic piece (62) in the elastic direction is connected to the end face of a rotating shaft of the driving plate (61), the elastic piece (62) has a trend that the elastic force drives the driving plate (61) to rotate in the direction away from the second air passage (328), the driving piece (63) is connected to the inner wall of the compression cavity (321), the driving piece (63) drives the driving end face of the driving plate (61) to rotate in the direction close to the second air passage (328), and the driving piece (63) is heated, expanded, abutted to the driving plate (61) is driven to rotate in the direction close the second air passage (328).
6. The impactor as defined in claim 5, wherein: the driving piece (63) comprises a driving rod (631) and a heat expansion and cold contraction rod (632), one end of the heat expansion and cold contraction rod (632) is connected to the inner wall of the compression cavity (321), the other end of the heat expansion and cold contraction rod (632) is connected with the end of the driving rod (631), the other end of the driving rod (631) away from the heat expansion and cold contraction rod (632) faces the end face of the rotating shaft of the driving plate (61), and when the heat expansion and cold contraction rod (632) heats up and expands and drives the driving rod (631) to slide towards the direction close to the driving plate (61), the end face of the driving rod (631) abuts against the end face of the driving plate (61) and drives the driving plate (61) to rotate towards the direction close to the air passage two (328).
7. The impactor as defined in claim 6, wherein: the end surface of the driving plate (61) far away from the air passage II (328) is provided with a positioning groove (611) for embedding the end part of the driving rod (631).
8. The impactor as defined in claim 6, wherein: the driving rod (631) is connected with an embedded block (7) towards the inner wall of the compression cavity (321), and an embedded groove (3210) for sliding of the embedded block (7) is formed in the inner wall of the compression cavity (321).
9. The impactor as defined in claim 5, wherein: the inner wall of the compression cavity (321) is provided with a driving cavity (329) for accommodating the driving plate (61), the driving cavity (329) is communicated with the air passage II (328), and when the driving plate (61) is embedded into the driving cavity (329), the end face of the driving plate (61) is flush with the inner wall of the compression cavity (321).
10. The impactor as defined in claim 6, wherein: the inner cylinder (32) is connected with a plurality of limiting bending plates (8), the limiting bending plates (8) are sequentially connected to the inner wall of the compression cavity (321) at intervals, the limiting bending plates (8) and the driving pieces (63) are in one-to-one correspondence, and the limiting bending plates (8) cover the end faces of the thermal expansion and contraction rods (632) far away from the driving rods (631).
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| CN202311043046.7A CN117127904B (en) | 2023-08-17 | 2023-08-17 | impactor |
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| CN202311043046.7A CN117127904B (en) | 2023-08-17 | 2023-08-17 | impactor |
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| CN114233696A (en) * | 2020-09-09 | 2022-03-25 | 北京机械设备研究所 | Small-size pressure boost and pressurizer |
| CN218347540U (en) * | 2022-08-02 | 2023-01-20 | 青岛海尔生物医疗股份有限公司 | Piston cylinder system, refrigerator and refrigeration equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1254437A (en) * | 1968-11-28 | 1971-11-24 | Sakuji Yamada | Percussion tool |
| CN2142140Y (en) * | 1992-09-29 | 1993-09-15 | 同济大学 | Underground percussion boring hole machine |
| CN1756888A (en) * | 2003-03-26 | 2006-04-05 | 瓦萨拉股份公司 | A hydraulic drill string device, in particular a hydraulic in-hole rock drilling machine |
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|---|---|
| CN117127904B (en) | 2024-02-13 |
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