CN109057706B - Eccentric hydraulic down-the-hole hammer - Google Patents
Eccentric hydraulic down-the-hole hammer Download PDFInfo
- Publication number
- CN109057706B CN109057706B CN201811028822.5A CN201811028822A CN109057706B CN 109057706 B CN109057706 B CN 109057706B CN 201811028822 A CN201811028822 A CN 201811028822A CN 109057706 B CN109057706 B CN 109057706B
- Authority
- CN
- China
- Prior art keywords
- drill bit
- outer shell
- check valve
- valve seat
- support mounting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000005553 drilling Methods 0.000 abstract description 14
- 239000011435 rock Substances 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 101100328887 Caenorhabditis elegans col-34 gene Proteins 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
Classifications
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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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/02—Fluid rotary type drives
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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)
- Earth Drilling (AREA)
Abstract
The invention relates to an eccentric hydraulic down-the-hole impactor, which belongs to the technical field of rock breaking machinery. The device consists of an upper joint, a lower joint, an outer shell, a punch hammer and a drill bit, wherein a check valve seat is arranged in the outer shell in a threaded manner, a valve cap is arranged on the check valve seat through a valve rod and a spring, support mounting plates are symmetrically arranged in the outer shell below the check valve seat, and impellers are arranged on the outer surface of the support mounting plates through impeller shafts; the inner surface of the supporting mounting plate is fixedly provided with a transmission disc through an impeller shaft. The hydraulic impactor is simple in structure, convenient to detach and convenient to use, and solves the problems of complex structure, complex operation, small impact energy, low energy utilization rate and the like of the existing tool. The eccentric hydraulic down-the-hole hammer has positive significance for improving drilling efficiency and drilling quality and reducing drilling cost.
Description
Technical Field
The invention relates to an eccentric hydraulic down-the-hole impactor, which belongs to the technical field of rock breaking machinery.
Background
The existing hydraulic down-the-hole impactors are mainly divided into four types: positive, negative, double-acting, and composite-acting down-the-hole impactors produced by their derivatives. The four types of down-the-hole impactors have the advantages of simple structure, stable performance, better back pressure resistance and common adoption, but the four types of down-the-hole impactors directly impact the surface of the impact hammer by liquid to push the impact hammer to impact and apply work, so that the four types of down-the-hole impactors have the serious defects of low energy utilization rate, small impact work and the like. The reaction hydraulic down-the-hole impactor has high energy utilization rate although the impact power is large; but must be equipped with a specific accumulator to achieve the desired effect.
Disclosure of Invention
The invention aims at: the drilling efficiency and the drilling quality can be greatly improved, and the drilling cost can be reduced; so as to solve the problems of small impact energy, low energy utilization rate and the like of the existing tool.
The technical scheme of the invention is as follows:
an eccentric hydraulic down-the-hole impactor consists of an upper joint, a lower joint, an outer shell, a punch hammer and a drill bit, wherein the upper joint is arranged at one end of the outer shell in a threaded manner, and the lower joint is arranged at the other end of the outer shell in a threaded manner; the method is characterized in that: a check valve seat is arranged in the outer shell below the upper joint in a threaded manner, a valve cap is arranged on the check valve seat through a valve rod and a spring, support mounting plates are symmetrically arranged in the outer shell below the check valve seat, and impellers are arranged on the outer surface of the support mounting plates through impeller shafts; the inner surface of the supporting mounting plate is fixedly provided with a transmission disc through an impeller shaft; a transmission shaft pin is eccentrically arranged between the transmission plates, a punch hammer is arranged in the outer shell below the support mounting plate through a guide sleeve, the top end of the punch hammer is provided with an assembly chute, the punch hammer is connected with the transmission plates through the cooperation of the assembly chute and the transmission shaft pin, a drill bit is arranged in the lower joint, and the punch hammer is in intermittent contact connection with the drill bit.
The check valve seat on both sides of the valve rod is provided with a liquid flow hole.
The inner wall of the outer shell corresponding to the support mounting plate is provided with a clamping groove in the axial direction; the support mounting plate is arranged in the outer shell through the clamping groove, and the top of the support mounting plate is connected with the check valve seat in a contact manner.
The drill bit is provided with a retaining ring. The retaining ring is composed of two symmetrically arranged semicircular rings.
The inner wall of the lower joint corresponding to the drill bit is provided with a key groove, the drill bit is provided with key teeth, and the drill bit is connected with the lower joint through the matching of the key teeth and the key groove in a sliding key manner.
Crushing teeth are uniformly distributed at the bottom of the drill bit, and water holes are formed in the drill bit between the crushing teeth.
The drill bit is provided with a central hole which is communicated with the water hole through a communication hole.
The invention has the beneficial effects that:
the eccentric hydraulic impactor is simple in structure, convenient to detach and use, and when in operation, pressure liquid pushes the impeller to rotate, so that the driving disc rotates together with the impeller, and further drives the impact hammer to move up and down axially, thereby impacting the drill bit, and realizing the centering collision of the impact hammer and the drill bit under the action of the guide sleeve and the retaining ring; so as to accelerate the breaking of rock and solve the problems of complex structure, complex operation, small impact energy, low energy utilization rate and the like of the existing tool. The eccentric hydraulic down-the-hole hammer has positive significance for improving drilling efficiency and drilling quality and reducing drilling cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an assembled schematic view of the impact hammer of the present invention;
FIG. 3 is an assembled schematic view of the drive disk of the present invention;
FIG. 4 is a schematic diagram of a check valve seat according to the present invention;
FIG. 5 is an enlarged schematic view of FIG. 1 at A;
fig. 6 is an enlarged schematic view at B in fig. 1.
In the figure: 1. the device comprises an upper joint, a lower joint, a 3, an outer shell, a 4, a punch hammer, a 5, a drill bit, a 6, a check valve seat, a 7, a valve rod, a 8, a spring, a 9, a valve cap, a 10, a hydraulic hole, a 11, a support mounting plate, a 12, an impeller shaft, a 13, an impeller, a 14, a driving disk, a 15, a driving shaft pin, a 16, a guide sleeve, a 17, an assembly chute, a 18, a retaining ring, a 19, crushing teeth, a 20 and a communication hole.
Detailed Description
The eccentric hydraulic down-the-hole impactor consists of an upper joint 1, a lower joint 2, an outer shell 3, a punch hammer 4 and a drill bit 5, wherein the upper joint 1 is arranged at one end of the outer shell 3 in a threaded manner, and the lower joint 2 is arranged at the other end of the outer shell 3 in a threaded manner; a check valve seat 6 is arranged on the inner thread of the outer shell 3 below the upper joint 1, a valve cap 9 is arranged on the check valve seat 6 through a valve rod 7 and a spring 8, and the valve cap 9 is attached to the lower port of the central hole of the upper joint 1 so as to prevent the back suction of pressure liquid during operation and cause the blockage phenomenon of tools or pipe columns; the check valve seat 6 is disc-shaped, and the check valve seat 6 on two sides of the valve rod 7 is provided with a liquid flow hole 10.
Support mounting plates 11 are symmetrically arranged in the outer shell 3 below the check valve seat 6, and clamping grooves are axially formed in the inner wall of the outer shell 3 corresponding to the support mounting plates 11; the support mounting plate 11 is mounted in the outer shell 3 through the clamping groove, and the top of the support mounting plate 11 is in contact connection with the check valve seat 6, so that the axial fixation of the support mounting plate 11 is realized, and the outer shell 3 below the check valve seat 6 is divided into 3 relatively independent chambers due to the mounting of the support mounting plate 11.
The outer surface of the supporting mounting plate 11 is provided with an impeller 13 through an impeller shaft 12; the inner surface of the supporting mounting plate 11 is embedded with a transmission plate 14 through an impeller shaft; the transmission disc 14 is fixedly connected with the impeller shaft 12; in operation, impeller 13 may drive disk 14 through impeller shaft 12 to rotate in unison.
A driving shaft pin 15 is eccentrically arranged between the driving discs 14, a punch hammer 4 is arranged in the outer shell 3 below the supporting mounting plate 11 through a guide sleeve 16, and the punch hammer 4 is in key connection with the guide sleeve 16; a certain gap is kept between the punch hammer 4 and the guide sleeve 16 so that pressure liquid can pass through during operation; the upper end of the punch hammer 4 extends between the transmission discs 14, an assembling chute 17 is arranged at the top of the punch hammer 4, and the assembling chute 17 is a strip hole. The impact hammer 4 is connected with the driving disc 14 through the matching of the assembling chute 17 and the driving shaft pin 15, and the assembling chute 17 aims to reserve a certain space for the assembling chute 17 and the driving shaft pin 15 so as to reduce the swing amplitude of the impact hammer 4 in operation and enable the impact hammer 4 to vertically move up and down.
The lower joint 2 is internally provided with a drill bit 5, the inner wall of the lower joint 2 corresponding to the drill bit 5 is provided with a key groove, the drill bit 5 is provided with key teeth, and the drill bit 5 is connected with the lower joint 2 in a sliding key manner through the cooperation of the key teeth and the key groove. The drill bit 5 is provided with a retaining ring 18; the retaining ring 18 is formed by two symmetrically arranged semicircular rings to play a role in centering the drill bit 5 during operation; crushing teeth 19 of alloy materials are uniformly distributed at the bottom of the drill bit 5, and water holes are formed in the drill bit 5 between the crushing teeth 19; the middle part of the drill bit 5 is provided with a central hole which is communicated with the water hole through a communication hole 20.
The eccentric hydraulic down-the-hole hammer is connected to a drill string through an upper joint 1, and when the eccentric hydraulic down-the-hole hammer works, the eccentric hydraulic down-the-hole hammer goes down to a preset well depth through the drill string, and the positions of a sleeve, a drill rod joint and the like are avoided in the process. In the working process, pressure liquid enters through a central hole of the upper joint 1 and acts on the end surface of the valve cap 9, the valve cap 9 compresses the spring 8 to move downwards under the pressure of the pressure liquid, the pressure liquid enters the outer shell 3 from the periphery of the valve cap 9, and then the pressure liquid respectively impacts the impeller 13 arranged on the outer surface of the supporting and mounting plate 11 through liquid flow holes 10 arranged on the check valve seat 6; thereby rotating it and thus driving the driving disk 14 to rotate synchronously.
Because the transmission shaft pins 15 are eccentrically arranged between the transmission plates 14, and the impact hammer 4 is connected with the transmission plates 14 through the matching of the assembly sliding grooves 17 and the transmission shaft pins 15, the transmission plates 14 drive the impact hammer 4 to move up and down through the transmission shaft pins 15 in the process of synchronously rotating along with the impeller 13, and therefore the impact drill bit 5 is intermittently impacted to accelerate the breaking of rock. The method specifically comprises the following steps of; when the transmission shaft pin 15 rotates to the lower part of the impeller shaft 12 along with the transmission disc 14, the impact hammer 4 impacts the drill bit 5; in this process; the impact hammer 4 collides with the drill bit 5 in a centering way under the action of the guide sleeve 16, the retaining ring 18 and the lower joint 2, and one-time rock drilling is completed.
The impeller 13 continues to rotate, and the transmission disc 14 synchronously rotates; when the drive shaft pin 15 rotates with the drive disk 14 above the impeller shaft 12, the hammer ram 4 returns to its original state. At the same time, the drill bit 5 rotates to a certain extent under the action of the torque of the drill string to twist and crush the rock. Along with the rotation of the impeller 13, the transmission shaft pin 15 drives the impact hammer 4 to repeatedly strike the drill bit 5, and the drilling task is completed under the torque action of the drill string.
In the process of striking the drill bit 5 by the impact hammer 4, the pressure liquid which is used for striking the impeller 13 enters the central hole of the drill bit 5, and is sprayed out of the water hole through the communication hole 20, so that the rock breaking effect is improved by matching with the breaking teeth 19.
The eccentric hydraulic impactor is simple in structure, convenient to detach and use, and solves the problems of complex structure, complex operation, small impact energy, low energy utilization rate and the like of the existing tool. The eccentric hydraulic down-the-hole hammer has positive significance for improving drilling efficiency and drilling quality and reducing drilling cost.
Claims (1)
1. An eccentric hydraulic down-the-hole impactor is composed of an upper joint (1), a lower joint (2), an outer shell (3), a hammer (4) and a drill bit (5), wherein the upper joint (1) is arranged at one end of the outer shell (3) in a threaded manner, and the lower joint (2) is arranged at the other end of the outer shell (3) in a threaded manner; the method is characterized in that: a check valve seat (6) is arranged on the inner thread of the outer shell (3) below the upper joint (1), a valve cap (9) is arranged on the check valve seat (6) through a valve rod (7) and a spring (8), support mounting plates (11) are symmetrically arranged in the outer shell (3) below the check valve seat (6), and an impeller (13) is arranged on the outer surface of the support mounting plates (11) through an impeller shaft (12); the inner surface of the supporting mounting plate (11) is fixedly provided with a transmission disc (14) through an impeller shaft (12); a transmission shaft pin (15) is eccentrically arranged between the transmission plates (14), a punch hammer (4) is arranged in the outer shell (3) below the support mounting plate (11) through a guide sleeve (16), an assembly chute (17) is arranged at the top end of the punch hammer (4), the punch hammer (4) is connected with the transmission plates (14) through the cooperation of the assembly chute (17) and the transmission shaft pin (15), a drill bit (5) is arranged in the lower joint (2), and the punch hammer (4) is in intermittent contact connection with the drill bit (5); the check valve seat (6) on two sides of the valve rod (7) is provided with a liquid flow hole (10);
a clamping groove is axially formed in the inner wall of the outer shell (3) corresponding to the support mounting plate (11); the support mounting plate (11) is arranged in the outer shell (3) through a clamping groove, and the top of the support mounting plate (11) is in contact connection with the check valve seat (6);
the drill bit (5) is provided with a retaining ring (18), and the retaining ring (18) is composed of two symmetrically arranged semicircular rings;
the inner wall of the lower joint (2) corresponding to the drill bit (5) is provided with a key groove, the drill bit (5) is provided with key teeth, and the drill bit (5) is connected with the lower joint (2) through the matching of the key teeth and the key groove in a sliding key manner;
crushing teeth (19) are uniformly distributed at the bottom of the drill bit (5), and water holes are formed in the drill bit (5) between the crushing teeth (19);
the drill bit (5) is provided with a central hole which is communicated with the water hole through a communication hole (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811028822.5A CN109057706B (en) | 2018-09-05 | 2018-09-05 | Eccentric hydraulic down-the-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811028822.5A CN109057706B (en) | 2018-09-05 | 2018-09-05 | Eccentric hydraulic down-the-hole hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109057706A CN109057706A (en) | 2018-12-21 |
| CN109057706B true CN109057706B (en) | 2024-03-22 |
Family
ID=64758524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811028822.5A Active CN109057706B (en) | 2018-09-05 | 2018-09-05 | Eccentric hydraulic down-the-hole hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109057706B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244052A (en) * | 2013-05-15 | 2013-08-14 | 西南石油大学 | Hydraulic hammer rod type impact drilling tool |
| CN105239922A (en) * | 2015-10-08 | 2016-01-13 | 西南石油大学 | Local reciprocating type hydraulic-impact well drilling speed increasing tool |
| CN108049803A (en) * | 2018-02-08 | 2018-05-18 | 西南石油大学 | Vane type differential torsion impact device |
| CN208830885U (en) * | 2018-09-05 | 2019-05-07 | 长江大学 | A kind of hydraulic down-the-hole air hammer of centering type |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9670729B2 (en) * | 2013-06-18 | 2017-06-06 | JW Tooling, LLC | Hydraulic rotator converter for a hydraulic impact hammer and method |
-
2018
- 2018-09-05 CN CN201811028822.5A patent/CN109057706B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244052A (en) * | 2013-05-15 | 2013-08-14 | 西南石油大学 | Hydraulic hammer rod type impact drilling tool |
| CN105239922A (en) * | 2015-10-08 | 2016-01-13 | 西南石油大学 | Local reciprocating type hydraulic-impact well drilling speed increasing tool |
| CN108049803A (en) * | 2018-02-08 | 2018-05-18 | 西南石油大学 | Vane type differential torsion impact device |
| CN208830885U (en) * | 2018-09-05 | 2019-05-07 | 长江大学 | A kind of hydraulic down-the-hole air hammer of centering type |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109057706A (en) | 2018-12-21 |
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