CN109826558B - Hydraulic high-frequency impact rock breaking tool - Google Patents
Hydraulic high-frequency impact rock breaking tool Download PDFInfo
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- CN109826558B CN109826558B CN201910265084.4A CN201910265084A CN109826558B CN 109826558 B CN109826558 B CN 109826558B CN 201910265084 A CN201910265084 A CN 201910265084A CN 109826558 B CN109826558 B CN 109826558B
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- 239000011435 rock Substances 0.000 title claims abstract description 25
- 230000005540 biological transmission Effects 0.000 claims abstract description 96
- 239000002002 slurry Substances 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims description 24
- 230000009471 action Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005553 drilling Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000036346 tooth eruption Effects 0.000 description 1
Classifications
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- 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
Abstract
The invention discloses a hydraulic high-frequency impact rock breaking tool, which comprises a shell, a turbine, a bearing, a transmission shaft, a piston, a spring and a nozzle, wherein an upper cavity, a lower cavity and a lower outlet cavity are formed between the transmission shaft and the inner wall of the shell; the tool can enable the slurry flow channel to be smooth and unobstructed, the tool can strengthen the rock breaking effect and efficiency through internal pressure impact, smooth driving rotation of slurry flow is utilized, high-frequency impact effect is generated, and the problems that parts are easy to damage, slurry is easy to block and the like are effectively solved.
Description
Technical Field
The invention relates to the technical field of drilling and rock breaking, in particular to a hydraulic high-frequency impact rock breaking tool.
Background
Along with the continuous development of oil fields, drilling difficulty, speed and depth are continuously increased, the drill bit is extremely easy to generate a stick-slip phenomenon when the drill bit encounters a hard stratum, so that the cutting teeth of the drill bit are damaged too early, the drilling speed is influenced, and the reason that the stick-slip phenomenon occurs is found through scientific development and is caused by uneven stratum, and torque cannot be output stably. In order to solve the stick-slip phenomenon of the drill bit in drilling, high-frequency ground axial impact force is applied to the drill bit, so that the drill bit can output stable torque and continuously and stably cut the stratum, and the drilling speed is improved to overcome the stick-slip phenomenon. The invention overcomes the defects of strong impact force, high frequency and simple mechanism, and effectively solves the defects of easy damage of parts, easy blockage of slurry and the like.
Disclosure of Invention
The invention aims to provide a hydraulic high-frequency impact rock breaking tool which can enable a slurry flow channel to be smooth and unobstructed, strengthen rock breaking effect and efficiency by internal pressure impact, and generate high-frequency impact effect by smooth driving rotation of slurry flow, thereby effectively solving the problems of easy damage of parts, easy blockage of slurry and the like.
Embodiments of the present invention are implemented as follows:
the hydraulic high-frequency impact rock breaking tool comprises a shell, a turbine, a bearing, a transmission shaft, a piston, a spring and a nozzle, wherein the transmission shaft is connected to the inner wall of the shell through the bearing, the transmission shaft is positioned in the shell, the first end of the transmission shaft faces to the inlet of the shell, the second end of the transmission shaft extends out of the shell to be abutted to a drill bit, the first end of the transmission shaft is provided with an upper cavity, the second end of the transmission shaft is provided with a lower outlet cavity, the center of the transmission shaft is provided with a center hole, the center hole and the lower outlet cavity are respectively positioned at two sides of the nozzle, the turbine is connected with one end of the transmission shaft, the nozzle is arranged at the other end of the transmission shaft, and a working area for installing the piston and the spring is arranged between the middle of the transmission shaft and the shell; the piston is positioned in the working area and divides the working area into an upper cavity and a lower cavity, the spring is arranged in the lower cavity and is connected with the piston, one end of the lower cavity is provided with a lower outlet facing the outer wall of the transmission shaft, and the transmission shaft is provided with an upper inlet, a lower inlet and a liquid outlet which are mutually spaced along the circumferential direction of the outer wall; through rotating the transmission shaft, the upper inlet is always communicated with the upper cavity and the central hole, the lower inlet is communicated with the lower cavity to the central hole through the lower outlet at intervals, and the liquid outlet is communicated with the lower inlet to the lower outlet cavity at intervals.
In a preferred embodiment of the present invention, the upper chamber pressure is intermittently greater than the lower chamber pressure caused by rotation of the drive shaft, such that the piston reciprocates to impact the drive shaft, which intermittently transmits pressure to the drill bit by impact of the piston.
In the preferred embodiment of the invention, the transmission shaft rotates, so that the pressure in the upper cavity is higher than the pressure in the lower cavity, the pressure in the lower cavity is equal to the pressure in the lower outlet cavity, and the piston downwards impacts the transmission shaft under the action of pressure difference; or the pressure in the upper cavity is equal to the pressure in the central hole and the lower cavity and is larger than the pressure in the lower outlet cavity, and the piston moves upwards to restore the position under the action of the spring.
In a preferred embodiment of the present invention, the working area is provided with a plurality of lower cavities and lower outlets at equal intervals along the circumferential direction along the inner wall of the housing, the transmission shaft is provided with a plurality of lower inlets and liquid discharge ports at equal intervals along the circumferential direction of the outer wall, and when the transmission shaft rotates to a circulation state, the lower inlets are communicated with the lower outlets and the central hole, and the liquid discharge ports are communicated with the lower outlets and the lower outlet cavities.
In a preferred embodiment of the present invention, the lower cavity and the lower outlet are respectively at least 6 equally distributed, and the lower inlet and the liquid outlet are respectively at least 3 equally distributed; the piston reciprocates to impact the drive shaft at least 3 times per revolution of the drive shaft.
In a preferred embodiment of the present invention, when the transmission shaft rotates, the pressure in the lower cavity is equal to the pressure in the central hole and the pressure in the lower outlet cavity, or the pressure in the lower cavity is greater than the pressure in the lower outlet cavity.
In a preferred embodiment of the invention, the housing is provided with an upper port and a lower port, the transmission shaft is provided with a slurry inlet, the upper port is a slurry inlet end, and slurry enters the housing through the upper port, then enters the central hole through the slurry inlet through the upper cavity, and finally enters the lower port from the liquid outlet.
In a preferred embodiment of the present invention, the turbine includes a turbine rotor and a turbine stator, the turbine rotor is connected to the first end of the transmission shaft, and the turbine stator is mounted on the inner wall of the housing.
In a preferred embodiment of the invention, the bearing comprises a first bearing and a second bearing, the first bearing is arranged between the outer side of the transmission shaft and the inner wall of the shell, the first bearing is arranged between the turbine and the working area, and the second bearing is arranged between the outer side of the transmission shaft and the outer side of the transmission shaft at the nozzle and the inner wall of the shell.
In a preferred embodiment of the present invention, the central hole and the lower outlet chamber are shut off by a nozzle, and the pressure at the central hole is greater than the pressure in the lower outlet chamber.
The beneficial effects of the invention are as follows:
according to the invention, the upper inlet is arranged on the outer wall of the transmission shaft and is communicated with the upper cavity, the lower inlet is circumferentially arranged on the outer wall of the transmission shaft at intervals and is communicated with the lower cavity, the liquid outlet is communicated to the lower outlet cavity, when the pressure of the upper cavity is greater than that of the lower cavity by utilizing the mutual matching of the piston and the spring, the piston compresses the lower cavity space and impacts the transmission shaft, when the pressure of the upper cavity is equal to that of the lower cavity, the piston is restored to an initial state under the action of the spring, the pressure is alternately changed back and forth, and the transmission shaft forms a high-frequency working structure through a plurality of working areas; the tool is simple in structure, can enable a slurry flow channel to be smooth and unobstructed, enhances rock breaking effect and efficiency by internal pressure impact, and utilizes slurry circulation to smoothly drive rotation to generate high-frequency impact effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be considered as limiting the scope.
FIG. 1 is a schematic cross-sectional view of a hydraulic high frequency impact rock breaking tool of the present invention;
FIG. 2 is a schematic A-A cross-sectional view of a hydraulic high frequency impact rock breaking tool of the present invention;
icon: 1-upper interface; 2-a turbine; 3-a housing; 4-an upper cavity; 5-slurry inlet; 6-a first bearing; 7-a transmission shaft; 8-a piston; 9-upper inlet; 10-upper chamber; 11-a spring; 12-lower chamber; 13-a lower outlet; 14-lower inlet; 15-a liquid outlet; 16-a second bearing; 17-a central hole; 18-nozzles; 19-lower outlet cavity; 20-lower interface.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
First embodiment
Referring to fig. 1, the present embodiment provides a hydraulic high-frequency impact rock breaking tool, which includes a housing 3, a turbine 2, a bearing, a transmission shaft 7, a piston 8, a spring 11 and a nozzle 18, wherein the upper port 1 is disposed at one end of the housing 3, the lower port 20 is disposed at the other end of the housing 3, a space for installing the transmission shaft 7 is provided in the housing 3, the bearing includes a first bearing 6 and a second bearing, the turbine 2 is connected with the transmission shaft 7, the first bearing 6 and the second bearing respectively limit and fix the transmission shaft 7, the piston 8 and the spring 11 rotationally drive the tool through the transmission shaft 7 to break rock, the nozzle 18 is disposed at one end of the central hole 17, an upper cavity 4, an upper cavity 10, a lower cavity 12 and a lower cavity 19 are formed between the transmission shaft 7 and the inner wall of the housing 3, a slurry inlet 5, an upper inlet 9, a lower outlet 13, a lower inlet 14 and a liquid outlet 15 are disposed on the outer wall of the transmission shaft 7, and then enter the housing 3 through the turbine 2, the upper cavity 4 is entered into the central hole 17 by the slurry inlet 5, the slurry inlet 9 is communicated with the upper cavity 10, the lower cavity 12 is communicated with the upper cavity 12 through the upper inlet 13, the lower outlet 13 is communicated with the lower cavity 14 and the lower cavity 15, and the lower cavity 11 is flowed through the lower inlet 14 and the lower outlet 15, thereby the piston is compressed and the piston is forced to flow in the intermittent process, thereby the intermittent rotation is completed, and the intermittent rotation is completed, thereby the intermittent rotation is achieved, and the vibration is generated, and the vibration is reduced, and the vibration is caused by the vibration and the vibration is reduced.
The turbine 2 comprises a turbine 2 rotor and a turbine 2 stator, the turbine 2 stator is fixedly connected to the inner wall of the shell 3, one end of the turbine 2 rotor is fixedly connected with the first end of the transmission shaft 7, the turbine 2 is connected with one end of the transmission shaft 7, the other end of the transmission shaft 7 is provided with a nozzle 18, and the transmission shaft 7 continuously rotates in the shell 3 due to the impact of slurry; the bearing comprises a first bearing 6 and a second bearing, the first bearing 6 is arranged between the outer side of the transmission shaft 7 and the inner wall of the shell 3, the first bearing 6 is positioned between the turbine 2 and the working area, the second bearing is arranged between the outer side of the transmission shaft 7 at the position of the transmission shaft 7 and the position of the nozzle 18 and the inner wall of the shell 3, the outer ring of the second bearing is fixedly connected with the transmission shaft 7 through the first bearing 6 and is positioned at the position of the nozzle 18, the outer ring of the second bearing is fixedly connected with the inner wall of the shell 3, the inner ring of the second bearing is fixedly connected with the outer wall of a lower outlet cavity 19 of the transmission shaft 7, the transmission shaft 7 is positioned in the shell 3, the first end of the transmission shaft 7 faces the inlet end of slurry of the shell 3, the second end of the transmission shaft 7 extends out of the shell 3 to butt joint the drill bit, the first end of the transmission shaft 7 is provided with an upper cavity 4, the second end of the transmission shaft 7 is provided with a lower outlet cavity 19, the upper cavity 4 is positioned between the turbine 2 and the first bearing 6, the lower cavity 12 is positioned at the outer side of the nozzle 18, the inner side of the nozzle 18 is a central hole 17, the center hole 17 is arranged at the center of the transmission shaft 7, the center of the transmission shaft 17 is provided with a central hole 17, the central hole 17 and the central hole 17 is positioned at the center of the lower cavity 17 and the lower cavity 17 is positioned between the two sides of the piston 8 and the working area 8 is positioned at the two sides of the piston 8 and the piston 8 respectively; the piston 8 is positioned in the working area and divides the working area into an upper cavity 10 and a lower cavity 12, the spring 11 is arranged in the lower cavity 12 and is connected with the piston 8, one end of the lower cavity 12 is provided with a lower outlet 13 facing the outer wall of the transmission shaft 7, and the transmission shaft 7 is provided with an upper inlet 9, a lower inlet 14 and a liquid outlet which are mutually spaced along the circumferential direction of the outer wall; by rotating the transmission shaft 7, the upper inlet 9 always communicates the upper cavity 10 with the central hole 17, the lower inlet 14 communicates the lower cavity 12 to the central hole 17 through the lower outlet 13 at intervals, and the liquid outlet communicates the lower inlet 14 to the lower outlet cavity 19 at intervals.
Referring to fig. 2, the working area is provided with a plurality of lower cavities 12 and lower outlets 13 at equal intervals along the circumferential direction along the inner wall of the casing 3, the transmission shaft 7 is provided with a plurality of lower inlets 14 and liquid outlets 15 at equal intervals along the circumferential direction of the outer wall, when the transmission shaft 7 rotates to a circulation state, the lower inlets 14 are communicated with the lower outlets 13 and the central holes 17, the liquid outlets 15 are communicated with the lower outlets 13 and lower outlet cavities 19, the lower cavities 12 and the lower outlets 13 are respectively provided with 6 equal intervals, the lower inlets 14 and the liquid outlets 15 are respectively provided with 3 equal intervals, the lower cavities 12 and the lower outlets 13 are respectively distributed on the inner wall of the casing 3 at equal intervals, the lower inlets 14 and the liquid outlets 15 are equally distributed on the outer wall of the transmission shaft 7 at equal intervals, and the transmission shaft 7 rotates to enable the lower inlets 14 to be communicated with the lower outlets 13 and the central holes 17 at equal intervals, so that the lower inlets 14 are communicated with the liquid outlets 15 and the central holes 17 at equal intervals; the shell 3 is provided with an upper interface 1 and a lower interface 20, the transmission shaft 7 is provided with a slurry inlet 5, the upper interface 1 is the inlet end of slurry, the slurry enters the shell 3 through the upper interface 1, then enters the central hole 17 through the slurry inlet 5 through the upper cavity 4, and finally enters the lower interface 20 from the liquid outlet 15; .
When the transmission shaft 7 rotates, the pressure in the lower cavity 12 is equal to the pressure of the central hole 17 and the pressure in the lower outlet cavity 19, or the pressure in the lower cavity 12 is greater than the pressure in the lower outlet cavity 19; the pressure of the upper cavity 10 is intermittently larger than the pressure of the lower cavity 12 caused by the rotation of the transmission shaft 7, so that the piston 8 reciprocates to impact the transmission shaft 7, and the transmission shaft 7 intermittently transmits the pressure to the drill bit through the impact of the piston 8; the transmission shaft 7 rotates, so that the pressure in the upper cavity 10 is higher than the pressure in the lower cavity 12, the pressure in the lower cavity 12 is equal to the pressure in the lower outlet cavity 19, and the piston 8 downwards impacts the transmission shaft 7 under the action of pressure difference; or such that the pressure in the upper chamber 10 is equal to the pressure at the central hole 17 and in the lower chamber 12 and greater than the pressure in the lower outlet chamber 19, the piston 8 is returned to its upward position under the action of the spring 11.
The working principle of the embodiment of the invention is as follows:
the rotor of the turbine 2 is communicated with the slurry inlet 5, the stator of the turbine 2 is connected with the shell 3, the upper interface 1 is communicated with the slurry inlet 5 through the turbine 2, the transmission shaft 7 is pushed to rotate through the turbine 2, the first bearing 6 supports the transmission shaft 7 in the shell 3, slurry enters the central hole 17 from the slurry inlet 5 after flowing from the upper interface 1 to the upper cavity 4, the slurry pressure in the central hole 17 is larger than the pressure in the lower outlet cavity 19 under the action of interception of the nozzle 18, the upper inlet 9 and the lower inlet 14 are communicated with the central hole 17, the pressure is the same, the transmission shaft 7 is respectively communicated with the lower outlet 13 in the rotating process, the pressure in the lower cavity 12 is respectively equal to the pressure in the central hole 17 and the pressure in the lower outlet cavity 19, when the pressure in the lower outlet 13 is equal to the pressure in the lower outlet cavity 19, the pressure in the upper cavity 10 is larger than the pressure in the lower outlet 13, the piston 8 pushes the lower outlet 13 to move downwards under the action of the pressure difference, the piston 8 is directly connected with the lower interface 20, the impact force is transmitted to the drill bit through the transmission shaft 7, and when the pressure in the lower outlet 13 is equal to the pressure in the central hole 17, the pressure in the lower cavity 10 is equal to the pressure in the lower cavity 10, the pressure in the lower cavity 10 is equal to the pressure in the lower cavity 7, the piston 8 is pushed to the piston 8 and the piston 8 returns to the piston 8, and the piston 8 is rotated, and the piston 8 returns to the piston 3 is rotated.
In summary, according to the invention, the upper inlet is arranged on the outer wall of the transmission shaft and is communicated with the upper cavity, the lower inlet is circumferentially arranged on the outer wall of the transmission shaft at intervals and is communicated with the lower cavity, the liquid outlet is communicated to the lower outlet cavity, when the pressure of the upper cavity is greater than that of the lower cavity by utilizing the mutual matching of the piston and the spring, the piston compresses the lower cavity space and impacts the transmission shaft, when the pressure of the upper cavity is equal to that of the lower cavity, the piston is restored to an initial state under the action of the spring, the pressure is alternately changed back and forth, and the transmission shaft forms a high-frequency working structure through a plurality of working areas; the tool is simple in structure, can enable a slurry flow channel to be smooth and unobstructed, enhances rock breaking effect and efficiency by internal pressure impact, and utilizes slurry circulation to smoothly drive rotation to generate high-frequency impact effect.
This description describes examples of embodiments of the invention and is not intended to illustrate and describe all possible forms of the invention. Those of ordinary skill in the art will recognize that the embodiments described herein are for the purpose of aiding the reader in understanding the principles of the present invention and should be understood that the scope of the invention is not limited to such specific statements and embodiments. Those of ordinary skill in the art can make various other specific modifications and combinations from the teachings of the present disclosure without departing from the spirit thereof, and such modifications and combinations remain within the scope of the present disclosure.
Claims (10)
1. The hydraulic high-frequency impact rock breaking tool is characterized by comprising a shell, a turbine, a bearing, a transmission shaft, a piston, a spring and a nozzle, wherein the transmission shaft is connected to the inner wall of the shell through the bearing, the transmission shaft is positioned in the shell, the first end of the transmission shaft faces to the inlet of the shell, the second end of the transmission shaft extends out of the shell to be abutted to a drill bit, an upper cavity is arranged at the first end of the transmission shaft, a lower cavity is arranged at the second end of the transmission shaft, a center hole is arranged at the center of the transmission shaft, the center hole and the lower cavity are respectively positioned at two sides of the nozzle, the turbine is connected with one end of the transmission shaft, the nozzle is arranged at the other end of the transmission shaft, and a working area for installing the piston and the spring is arranged between the middle part of the transmission shaft and the shell; the piston is positioned in the working area and divides the working area into an upper cavity and a lower cavity, the spring is arranged in the lower cavity and is connected with the piston, one end of the lower cavity is provided with a lower outlet facing the outer wall of the transmission shaft, and the transmission shaft is provided with an upper inlet, a lower inlet and a liquid outlet which are mutually spaced along the circumferential direction of the outer wall; through rotating the transmission shaft, the upper inlet is always communicated with the upper cavity and the central hole, the lower inlet is communicated with the lower cavity to the central hole through the lower outlet at intervals, and the liquid outlet is communicated with the lower inlet to the lower outlet cavity at intervals.
2. The hydraulic high frequency impact rock breaking tool according to claim 1, wherein the upper chamber pressure is intermittently greater than the lower chamber pressure caused by rotation of the drive shaft such that the piston reciprocates to impact the drive shaft, the drive shaft intermittently transmitting pressure to the drill bit by impact of the piston.
3. The hydraulic high frequency impact rock breaking tool according to claim 2, wherein the transmission shaft rotates such that the pressure in the upper chamber is greater than the pressure in the lower chamber, the pressure in the lower chamber is equal to the pressure in the lower outlet chamber, and the piston impacts the transmission shaft downward under the action of the pressure difference; or the pressure in the upper cavity is equal to the pressure in the central hole and the lower cavity and is larger than the pressure in the lower outlet cavity, and the piston moves upwards to restore the position under the action of the spring.
4. The hydraulic high frequency impact rock breaking tool according to claim 3, wherein the working area is provided with a plurality of lower cavities and lower outlets at equal intervals along the circumferential direction along the inner wall of the shell, the transmission shaft is provided with a plurality of lower inlets and liquid discharge ports at equal intervals along the circumferential direction of the outer wall, and when the transmission shaft rotates to a circulation state, the lower inlets are communicated with the lower outlets and the central hole, and the liquid discharge ports are communicated with the lower outlets and the lower outlet cavities.
5. The hydraulic high frequency impact rock breaking tool according to claim 4, wherein the lower cavity and the lower outlet are respectively arranged to be at least 6 in equidistant distribution, and the lower inlet and the liquid outlet are respectively arranged to be at least 3 in equidistant distribution; the piston reciprocates to impact the drive shaft at least 3 times per revolution of the drive shaft.
6. The hydraulic high frequency impact rock breaking tool according to claim 4, wherein the pressure in the lower chamber is equal to the pressure in the central hole and the pressure in the lower outlet chamber or the pressure in the lower chamber is greater than the pressure in the lower outlet chamber when the transmission shaft rotates.
7. The hydraulic high frequency impact rock breaking tool according to claim 1, wherein the housing is provided with an upper port and a lower port, the transmission shaft is provided with a slurry inlet, the upper port is a slurry inlet end, the slurry enters the housing through the upper port, enters the central hole through the slurry inlet through the upper cavity, and finally enters the lower port from the liquid outlet.
8. The hydraulic high frequency impact rock breaking tool of claim 1, wherein the turbine includes a turbine rotor and a turbine stator, the turbine rotor being connected to the first end of the drive shaft, the turbine stator being mounted to the inner wall of the housing.
9. The hydraulic high frequency impact rock breaking tool according to claim 1, wherein the bearing comprises a first bearing mounted between an outer side of the drive shaft and an inner wall of the housing, the first bearing being located between the turbine and the working area, and a second bearing disposed between the drive shaft and an outer side of the drive shaft at the nozzle and the inner wall of the housing.
10. A hydraulic high frequency impact rock breaking tool according to claim 3, wherein the central bore and lower outlet chamber are shut off by a nozzle, the pressure at the central bore being greater than the pressure in the lower outlet chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265084.4A CN109826558B (en) | 2019-04-03 | 2019-04-03 | Hydraulic high-frequency impact rock breaking tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265084.4A CN109826558B (en) | 2019-04-03 | 2019-04-03 | Hydraulic high-frequency impact rock breaking tool |
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| Publication Number | Publication Date |
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| CN109826558A CN109826558A (en) | 2019-05-31 |
| CN109826558B true CN109826558B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910265084.4A Active CN109826558B (en) | 2019-04-03 | 2019-04-03 | Hydraulic high-frequency impact rock breaking tool |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110469267B (en) * | 2019-07-31 | 2021-02-12 | 西南石油大学 | Device and method for reducing drag and increasing speed through shaft-torsion composite action in drilling process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2054520C1 (en) * | 1993-03-23 | 1996-02-20 | Анатолий Васильевич Тихонов | Turbovibrator |
| CN105239929A (en) * | 2015-11-24 | 2016-01-13 | 西南石油大学 | Downhole tool for achieving efficient rock breaking through spin vibration |
| CN107664012A (en) * | 2017-11-07 | 2018-02-06 | 西南石油大学 | The two-way high frequency composite impact device of turbine type |
| CN108625783A (en) * | 2018-07-03 | 2018-10-09 | 长江大学 | A kind of downhole pressure increasing auxiliary rock tool |
| CN209704478U (en) * | 2019-04-03 | 2019-11-29 | 四川省贝特石油技术有限公司 | Hydraulic high-frequency percussion rock crushing tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0112261D0 (en) * | 2001-05-19 | 2001-07-11 | Rotech Holdings Ltd | Downhole tool |
-
2019
- 2019-04-03 CN CN201910265084.4A patent/CN109826558B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2054520C1 (en) * | 1993-03-23 | 1996-02-20 | Анатолий Васильевич Тихонов | Turbovibrator |
| CN105239929A (en) * | 2015-11-24 | 2016-01-13 | 西南石油大学 | Downhole tool for achieving efficient rock breaking through spin vibration |
| CN107664012A (en) * | 2017-11-07 | 2018-02-06 | 西南石油大学 | The two-way high frequency composite impact device of turbine type |
| CN108625783A (en) * | 2018-07-03 | 2018-10-09 | 长江大学 | A kind of downhole pressure increasing auxiliary rock tool |
| CN209704478U (en) * | 2019-04-03 | 2019-11-29 | 四川省贝特石油技术有限公司 | Hydraulic high-frequency percussion rock crushing tool |
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