CN113338829B - Rotary speed-limiting jetting tool - Google Patents
Rotary speed-limiting jetting tool Download PDFInfo
- Publication number
- CN113338829B CN113338829B CN202110608490.3A CN202110608490A CN113338829B CN 113338829 B CN113338829 B CN 113338829B CN 202110608490 A CN202110608490 A CN 202110608490A CN 113338829 B CN113338829 B CN 113338829B
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- gear ring
- shaft
- output shaft
- rotor
- limiting
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- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
Abstract
The rotary speed-limiting injection tool comprises a driving mechanism, a universal joint mechanism, a speed reducing mechanism, an annular transmission shaft, an annular output shaft and an injection mechanism; the driving mechanism comprises a stator and a rotor, the rotor is installed in the stator, a cycloid meshing transmission structure used for achieving rotation of the rotor is arranged between the rotor and the stator, a rotation driving flow path is formed between the cycloid meshing transmission structures, the lower end of the transmission shaft and the upper end of the output shaft are connected through a speed reducing mechanism, the lower end of the transmission shaft and the upper end of the output shaft can be in sealing communication in a relatively rotating mode, the lower end of the rotor is connected with the upper end of the transmission shaft through a universal joint mechanism, and the jetting mechanism is installed at the lower end of the output shaft. Compared with a non-rotating speed-limiting spraying tool, the rotating speed-limiting spraying tool has the advantages of smaller energy loss, higher water flow spraying speed, smaller atomization phenomenon, higher impact force, better stripping effect and higher working aging.
Description
Technical Field
The invention relates to the technical field of oil exploitation, in particular to a rotary speed-limiting injection tool.
Background
The spray head is an actuating element of high-pressure water jet, and the rotary spray head has circumferential and omnibearing cleaning capability and can remove blockage or pollution of a near well zone through high-pressure cleaning. The existing non-rotating speed-limiting injection tool has the disadvantages of large energy loss, low water flow injection speed, large atomization phenomenon, low impact force, poor stripping effect and low working aging.
Disclosure of Invention
The embodiment of the invention provides a rotary speed-limiting spraying tool, which has the advantages of smaller energy loss, higher water flow spraying speed, smaller atomization phenomenon, higher impact force, better stripping effect and higher working aging.
The rotary speed-limiting injection tool provided by the embodiment of the invention comprises a driving mechanism, a universal joint mechanism, a speed reducing mechanism, an annular transmission shaft, an annular output shaft and an injection mechanism; the driving mechanism comprises a stator and a rotor, the rotor is installed in the stator, a cycloid meshing transmission structure used for achieving rotation of the rotor is arranged between the rotor and the stator, a rotation driving flow path is formed between the cycloid meshing transmission structures, the lower end of the transmission shaft is connected with the upper end of the output shaft through the speed reducing mechanism, the lower end of the transmission shaft and the upper end of the output shaft can be in relatively rotating sealed communication, the lower end of the rotor is connected with the upper end of the transmission shaft through the universal joint mechanism, and the injection mechanism is installed at the lower end of the output shaft.
In an exemplary embodiment, the transmission shaft includes an upper shaft section, a middle shaft section and a lower shaft section, an axis of the upper shaft section and an axis of the lower shaft section coincide, an axis of the middle shaft section deviates from the axes of the upper shaft section and the lower shaft section, the speed reducing mechanism is sleeved on the middle shaft section, and an upper end of the output shaft is rotatably sleeved on the lower shaft section in a sealing manner.
In an exemplary embodiment, the speed reduction mechanism is a cycloidal gear transmission speed reduction mechanism.
In an exemplary embodiment, the cycloidal gear transmission reduction mechanism includes: the first gear ring is rotatably and fixedly sleeved on the middle shaft section, and the outer peripheral surface of the first gear ring is provided with upper gear teeth and lower gear teeth; the second gear ring is fixedly sleeved on the radial outer side of the first gear ring, and the inner teeth of the second gear ring are meshed with the upper gear teeth; the fixed third gear ring is sleeved on the radial outer side of the second gear ring, and the inner teeth of the third gear ring are meshed with the outer teeth of the second gear ring; and the fourth gear ring is sleeved on the radial outer side of the first gear ring and is positioned below the third gear ring, the inner teeth of the fourth gear ring are meshed with the lower gear teeth, and the output shaft is connected with the fourth gear ring.
In an exemplary embodiment, the number of teeth of the third gear ring is greater than the number of teeth of the outer teeth of the second gear ring, the gear ratio of the inner teeth of the second gear ring to the upper gear teeth is 1:1, and the number of teeth of the fourth gear ring is greater than the number of teeth of the lower gear teeth.
In an exemplary embodiment, the rotary rate limiting jetting tool further comprises: and the top driving shaft is positioned between the fourth gear ring and the output shaft and sleeved on the lower shaft section, and the output shaft is connected with the fourth gear ring through the top driving shaft.
In an exemplary embodiment, the rotary rate-limiting jetting tool further comprises: the upper end of the outer barrel is connected with the lower end of the stator, the lower end of the outer barrel is sleeved on the output shaft in a sealing mode, the third gear ring is fixedly installed in the outer barrel, and the fourth gear ring is installed in the outer barrel in a rotating mode.
In an exemplary embodiment, the outer cylinder is provided with an injection hole for injecting lubricating oil, the injection hole is located above the speed reducing mechanism, and a plug is mounted on the injection hole.
In an exemplary embodiment, the outer cylinder has an upward first step surface on an inner surface thereof, the output shaft is provided with a downward second step surface above the first step surface, and a thrust bearing is mounted between the first step surface and the second step surface.
In an exemplary embodiment, the rotary rate-limiting jetting tool further comprises: the universal joint mechanism is characterized by comprising an annular crankshaft, wherein an overflowing hole is formed in the side wall of the crankshaft, the universal joint mechanism is connected with the transmission shaft through the crankshaft, and the overflowing hole is communicated with the rotary driving flow path and an inner hole of the transmission shaft.
In an exemplary embodiment, the injection mechanism includes: the spray head is arranged at the lower end of the output shaft, and a spray opening is formed in the side wall of the spray head; and a nozzle replaceably mounted on the ejection port.
Compared with a non-rotating speed-limiting spraying tool, the rotating speed-limiting spraying tool provided by the embodiment of the invention has the advantages of smaller energy loss, higher water flow spraying speed, smaller atomization phenomenon, higher impact force, better stripping effect and higher working aging.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic front view of a rotating speed-limiting jetting tool according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the rotary rate-limiting jetting tool of FIG. 1;
FIGS. 3-6 are schematic views of a portion of the rotary rate-limiting jetting tool of FIG. 2;
FIG. 7 is a perspective view of the cycloidal gear transmission reduction mechanism of FIG. 2;
FIG. 8 is a perspective view of the cycloidal gear transmission reduction mechanism of FIG. 2 from another perspective;
FIG. 9 is a perspective view of the drive shaft of FIG. 2;
FIG. 10 is a perspective view of the crankshaft of FIG. 2;
fig. 11 is a perspective view of the rotor of fig. 2.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 11 is:
100 driving mechanisms, 110 stators, 120 rotors, 200 universal joint mechanisms, 300 cycloidal gear transmission speed reducing mechanisms, 310 first gear rings, 320 second gear rings, 330 third gear rings, 340 fourth gear rings, 400 transmission shafts, 410 upper shaft sections, 420 middle shaft sections, 430 lower shaft sections, 440 crankshaft gaskets, 500 output shafts, 600 injection mechanisms, 610 spray heads, 620 spray nozzles, 630 bearings, 700 top driving shafts, 810 first outer sleeves, 820 second outer sleeves, 821 annular bosses, 822 injection holes, 830 lower sealing sleeves, 900 thrust bearings, 1000 crankshafts, 1010 overflowing holes and 1100 upper joints.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The rotary speed-limiting injection tool provided by the embodiment of the invention, as shown in fig. 1 to 11, includes a driving mechanism 100, a universal joint mechanism 200, a speed reducing mechanism, an annular transmission shaft 400, an annular output shaft 500 and an injection mechanism 600; the driving mechanism 100 comprises a stator 110 and a rotor 120, the rotor 120 is installed in the stator 110, a cycloid meshing transmission structure for realizing rotation of the rotor 120 is arranged between the rotor 120 and the stator 110, a rotation driving flow path is formed between the cycloid meshing transmission structures, the lower end of a transmission shaft 400 is connected with the upper end of an output shaft 500 through a speed reducing mechanism, the lower end of the transmission shaft 400 is in relatively rotatable and sealed communication with the upper end of the output shaft 500, the lower end of the rotor 120 is connected with the upper end of the transmission shaft 400 through a universal joint mechanism 200, and an injection mechanism 600 is installed at the lower end of the output shaft 500. The rotary driving flow path is a twisted sealed space, and the rotor 120 is driven to rotate in the stator 110 under the power of fluid.
The rotary driving flow path is a twisted sealed space, under the power of fluid, the rotor 120 is driven to rotate in the stator 110, the pressure water sequentially passes through the inner hole of the transmission shaft, the inner hole of the output shaft 500 and the injection mechanism 600 and then is injected, the rotor 120 drives the transmission shaft 400 to rotate through the universal joint mechanism 200, the transmission shaft 400 drives the output shaft 500 to rotate at a reduced speed through the reduction mechanism, the injection mechanism 600 and the output shaft 500 rotate at a reduced speed together, and therefore the pressure water is rotationally injected. Compared with a non-rotary speed-limiting spraying tool, the rotary speed-limiting spraying tool has the advantages of smaller energy loss, higher water flow spraying speed, smaller atomization phenomenon, higher impact force, better stripping effect and higher working timeliness.
The rotation of the rotor can provide stronger power, so that the injection mechanism cannot stop rotating when meeting larger rotation resistance; the stator is designed by all metals to meet the requirement of high-temperature operation, and can be a rubber stator under the well temperature environment within 150 ℃.
In an exemplary embodiment, as shown in fig. 4, 5 and 9, the transmission shaft 400 includes an upper shaft segment 410, a middle shaft segment 420 and a lower shaft segment 430, an axis of the upper shaft segment 410 coincides with an axis of the lower shaft segment 430, an axis of the middle shaft segment 420 deviates from the axes of the upper shaft segment 410 and the lower shaft segment 430, the speed reducing mechanism is sleeved on the middle shaft segment 420, an upper end of the output shaft 500 is rotatably and hermetically sleeved on the lower shaft segment 430, and the output shaft 500 and the transmission shaft 400 can rotate relatively and are in sealed communication. The transmission shaft 400 adopts a camshaft type design, so that the outer diameter of the tool can be greatly reduced, and the use requirements of different inner diameter ranges of 1.69-2.75 inches can be met.
Illustratively, as shown in fig. 5, 7, and 8, the reduction mechanism is a cycloid gear reduction mechanism 300, and the cycloid gear reduction mechanism 300 includes: the first gear ring 310 is rotatably fixedly sleeved on the middle shaft section 420 (two dry bearings are axially sleeved on the middle shaft section 420 at intervals, the first gear ring 310 is sleeved on the two dry bearings), and the outer peripheral surface of the first gear ring 310 is provided with upper gear teeth and lower gear teeth; the second gear ring 320 is sleeved on the radial outer side of the first gear ring 310, the inner teeth of the second gear ring 320 are meshed with the upper gear teeth, and the transmission ratio of the second gear ring 320 to the upper gear teeth of the first gear ring 310 is 1:1; the fixedly installed third gear ring 330 is sleeved on the radial outer side of the second gear ring 320, the inner teeth of the third gear ring 330 are only partially meshed with the outer teeth of the second gear ring 320, and the third gear ring 330 forms a fixed gear ring of the cycloid gear transmission speed reducing mechanism 300; and the fourth gear ring 340 is sleeved on the radial outer side of the first gear ring 310, the upper end of the fourth gear ring 340 abuts against the lower end of the third gear ring 330, the inner teeth of the fourth gear ring 340 are only partially meshed with the lower gear teeth, so that the first gear ring 310 transmits torque to the fourth gear ring 340, and the output shaft 500 is connected with the fourth gear ring 340. The cycloidal gear transmission speed reducing mechanism 300 is free from temperature change and can continuously work, so that the rotating speed is controlled between 5RPM and 25 RPM. The bearings of all gear rings are dry bearings, so that the requirement of high-temperature operation can be met.
The transmission shaft 400, the first gear ring 310 and the second gear ring 320 rotate together, the transmission ratio of upper gear teeth of the second gear ring 320 and the first gear ring 310 is 1:1 (the two can not rotate relatively), the number of teeth of the third gear ring 330 is more than that of outer teeth of the second gear ring 320, the second gear ring 320 performs planetary motion along the inner teeth of the third gear ring 330, the purpose of one-stage speed reduction is achieved, and the first gear ring 310 can rotate relative to the transmission shaft 400 and downwards transmit torque as the gear ring 330 is fixed and can not rotate; the number of teeth of the fourth gear ring 340 is greater than that of the lower gear teeth of the first gear ring 310, the first gear ring 310 performs planetary motion in the gear ring 340 and drives the fourth gear ring 340 to rotate, so that the purpose of second-stage speed reduction is achieved, and the fourth gear ring 340 drives the output shaft 500 to rotate at a high torque and a low rotating speed.
For example, as shown in fig. 5 and 6, the rotary rate-limiting jetting tool further includes: and a top drive shaft 700 disposed between the fourth gear ring 340 and the output shaft 500 and sleeved on the lower shaft segment 430, wherein the output shaft 500 is connected with the fourth gear ring 340 through the top drive shaft 700. The lower end of the fourth gear ring 340 may be engaged with the top driving shaft 700 through a protrusion structure to achieve synchronous rotation, and the lower end of the top driving shaft 700 may be connected with the upper end of the output shaft 500 through a screw. Bearings are also mounted on both the inside and outside of the top drive shaft 700.
For example, as shown in fig. 3 to 6, the rotary rate-limiting jetting tool further includes: and an outer cylinder, an upper end of which is connected to a lower end of the stator 110, a lower end of which is hermetically fitted over the output shaft 500, a third gear ring 330 fixedly installed in the outer cylinder, and a fourth gear ring 340 rotatably installed in the outer cylinder. The outer cylinder may include a first outer sleeve 810, a second outer sleeve 820 and a lower plugging sleeve 830 which are sequentially arranged from top to bottom, an upper end of the first outer sleeve 810 extends into a lower end of the stator 110 and is fixed with the stator 110, a lower end of the first outer sleeve 810 extends into an upper end of the second outer sleeve 820 and is fixed with the second outer sleeve 820, and an upper end of the lower plugging sleeve 830 extends into a lower end of the second outer sleeve 820 and is fixed with the second outer sleeve 820. An annular boss 821 is arranged on the inner side face of the upper portion of the second outer sleeve 820, a dry bearing is arranged between the table face of the annular boss 821 and the transmission shaft 400, a crankshaft gasket 440 is screwed on the transmission shaft 400 above the annular boss 821 through threads, and an axial gap is formed between the crankshaft gasket 440 and the table face of the annular boss 821 to prevent mutual abrasion of the crankshaft gasket 440 and the table face of the annular boss 821.
For example, as shown in fig. 1, an injection hole 822 for injecting lubricating oil is provided on a side wall of the second housing 820, the injection hole 822 is located above the speed reduction mechanism, and a plug is attached to the injection hole 822, and the lubricating oil can be injected into the speed reduction mechanism from the injection hole 822 by opening the plug. The lower plugging sleeve 830 is provided with a discharge port for discharging lubricating oil, and a plug is mounted on the discharge port. The purpose of lubrication is achieved by injecting high-temperature grease into the gear ring.
Illustratively, as shown in fig. 5, the inner surface of the lower blocking sleeve 830 has a first step surface facing upward, the output shaft 500 is provided with a second step surface facing downward, the second step surface is located above the first step surface, a thrust bearing 900 is installed between the first step surface and the second step surface, and thrust pads are respectively installed on the upper side and the lower side of the thrust bearing 900, so that the wear of the first step surface and the second step surface can be reduced.
For example, as shown in fig. 4 and 10, the rotary rate-limiting jetting tool further includes: the side wall of the crankshaft 1000 is provided with a through hole 1010, the universal joint mechanism 200 is connected with the transmission shaft 400 through the crankshaft 1000, the through hole 1010 is communicated with the rotary driving flow path and an inner hole of the transmission shaft 400, and pressure water passing through the rotary driving flow path can enter the transmission shaft 400 from the through hole 1010 and is conveyed downwards along the transmission shaft 400.
Illustratively, as shown in fig. 3, 4 and 11, a boss is provided on a lower end surface of the rotor 120, an axis of the boss deviates from an axis of the rotor 120, the rotor 120 is in threaded connection with an upper end of the universal joint mechanism 200 through the boss, a lower end of the universal joint mechanism 200 is in threaded connection with an upper end of the crankshaft 1000, and a lower end of the crankshaft 1000 is in threaded connection with the upper shaft section 410 of the transmission shaft 400.
In an exemplary embodiment, as shown in fig. 6, the injection mechanism 600 includes: the spray head 610 is hermetically arranged at the lower end of the output shaft 500, and a spray port communicated with the inner hole of the output shaft 500 is arranged on the side wall of the spray head 610; and a nozzle 620, which is replaceably installed on the injection port, for performing a rotating injection of the pressurized water in a circumferential direction. A bearing 630 is installed between the nozzle 610 and the output shaft 500, and the bearing 630 is designed in two semicircular shapes and fixed together by a sealing ring sleeved on the periphery. Different injection mechanisms may be selected for different types of work. For example, a spray gun nozzle with a small nozzle can be used for cutting, a jet nozzle with a large nozzle can be used for washing, and when the capability of passing through a step surface needs to be increased, an inclined nozzle can be selected.
In an exemplary embodiment, as shown in fig. 1 to 3, the rotary rate limiting jetting tool further comprises: the upper connector 1100 is fixedly coupled to the stator 110 by a screw.
In conclusion, compared with a non-rotating speed-limiting spraying tool, the rotating speed-limiting spraying tool provided by the embodiment of the invention has the advantages of smaller energy loss, higher water flow spraying speed, smaller atomization phenomenon, higher impact force, better stripping effect and higher working time efficiency.
In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "mouth" structure ", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the structures referred to have specific orientations, are configured and operated in specific orientations, and thus, are not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "directly connected," "indirectly connected," "fixedly connected," "mounted," and "assembled" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; the terms "mounted," "connected," and "fixedly connected" may be directly connected or indirectly connected through intervening media, or may be connected through two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Although the embodiments of the present invention have been described above, the above description is only for the purpose of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A rotary speed-limiting injection tool is characterized by comprising a driving mechanism, a universal joint mechanism, a speed reducing mechanism, an annular transmission shaft, an annular output shaft and an injection mechanism; the driving mechanism comprises a stator and a rotor, the rotor is arranged in the stator, a cycloid meshing transmission structure used for realizing the rotation of the rotor is arranged between the rotor and the stator, a rotation driving flow path is formed between the cycloid meshing transmission structures, the lower end of the transmission shaft is connected with the upper end of the output shaft through the speed reducing mechanism, the lower end of the transmission shaft is in relative rotation and sealed communication with the upper end of the output shaft, the lower end of the rotor is connected with the upper end of the transmission shaft through the universal joint mechanism, and the injection mechanism is arranged at the lower end of the output shaft;
the transmission shaft comprises an upper shaft section, a middle shaft section and a lower shaft section, the axis of the upper shaft section is coincident with the axis of the lower shaft section, the axis of the middle shaft section deviates from the axes of the upper shaft section and the lower shaft section, the speed reducing mechanism is sleeved on the middle shaft section, and the upper end of the output shaft is rotatably sleeved on the lower shaft section in a sealing manner;
the speed reducing mechanism is a cycloidal gear transmission speed reducing mechanism;
the cycloid gear transmission reduction mechanism includes:
the first gear ring is rotatably and fixedly sleeved on the middle shaft section, and the outer peripheral surface of the first gear ring is provided with upper gear teeth and lower gear teeth;
the second gear ring is fixedly sleeved on the radial outer side of the first gear ring, and the inner teeth of the second gear ring are meshed with the upper gear teeth;
the fixedly installed third gear ring is sleeved on the radial outer side of the second gear ring, and the inner teeth of the third gear ring are meshed with the outer teeth of the second gear ring; and
the fourth gear ring is sleeved on the radial outer side of the first gear ring and located below the third gear ring, the inner teeth of the fourth gear ring are meshed with the lower gear teeth, and the output shaft is connected with the fourth gear ring.
2. The rotary rate-limiting jetting tool of claim 1, further comprising:
and the top driving shaft is positioned between the fourth gear ring and the output shaft and sleeved on the lower shaft section, and the output shaft is connected with the fourth gear ring through the top driving shaft.
3. The rotary rate-limiting jetting tool of claim 1, further comprising:
the upper end of the outer barrel is connected with the lower end of the stator, the lower end of the outer barrel is sleeved on the output shaft in a sealing mode, the third gear ring is fixedly installed in the outer barrel, and the fourth gear ring is installed in the outer barrel in a rotating mode.
4. The rotating speed-limiting spraying tool according to claim 3, wherein an injection hole for injecting lubricating oil is provided on the outer cylinder, the injection hole is located above the speed reducing mechanism, and a plug is mounted on the injection hole.
5. The rotary speed-limiting jetting tool of claim 3, wherein the outer barrel has an upwardly facing first stepped surface on an inner surface thereof, and the output shaft has a downwardly facing second stepped surface thereon, the second stepped surface being located above the first stepped surface, and a thrust bearing being mounted between the first stepped surface and the second stepped surface.
6. The rotary rate-limiting jetting tool of any one of claims 1 to 5, further comprising:
the universal joint mechanism is characterized by comprising an annular crankshaft, wherein an overflowing hole is formed in the side wall of the crankshaft, the universal joint mechanism is connected with the transmission shaft through the crankshaft, and the overflowing hole is communicated with the rotary driving flow path and an inner hole of the transmission shaft.
7. The rotary speed limited jetting tool of any one of claims 1 to 5, wherein the jetting mechanism comprises:
the spray head is arranged at the lower end of the output shaft, and a spray opening is formed in the side wall of the spray head; and
a nozzle replaceably mounted on the ejection port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110608490.3A CN113338829B (en) | 2021-06-01 | 2021-06-01 | Rotary speed-limiting jetting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110608490.3A CN113338829B (en) | 2021-06-01 | 2021-06-01 | Rotary speed-limiting jetting tool |
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| Publication Number | Publication Date |
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| CN113338829A CN113338829A (en) | 2021-09-03 |
| CN113338829B true CN113338829B (en) | 2022-10-28 |
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| CN202110608490.3A Active CN113338829B (en) | 2021-06-01 | 2021-06-01 | Rotary speed-limiting jetting tool |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8608857D0 (en) * | 1986-04-11 | 1986-05-14 | Drilex Aberdeen Ltd | Drilling |
| CN2731085Y (en) * | 2004-01-05 | 2005-10-05 | 辽河石油勘探局 | Hydraulic self-feeding speed adjustable rotary sand flushing deblocking device |
| BRPI0910881B1 (en) * | 2008-04-18 | 2019-03-26 | Dreco Energy Services Ltd. | DRILLING MACHINES AND TO CONTROL THE ROTATIONAL SPEED OF A DRILLING TOOL, AND METHOD FOR DRILLING. |
| CN201687420U (en) * | 2010-04-07 | 2010-12-29 | 中国石油天然气集团公司 | Rotary injection tool applicable to borehole operation in oil and gas field |
| CN102828716B (en) * | 2012-09-18 | 2015-03-18 | 东北石油大学 | Sealed type hydraulic driving adjustable speed cutter of oil pipe string with diameter being phi 73mm or greater |
| CN103967435B (en) * | 2014-05-21 | 2016-04-06 | 西南石油大学 | A kind of coal bed gas well shaft bottom fettling installation |
| CN205012943U (en) * | 2015-08-10 | 2016-02-03 | 宝鸡石油机械有限责任公司 | Rotatory instrument that washes of coiled tubing |
| CN205503058U (en) * | 2016-03-09 | 2016-08-24 | 杰瑞能源服务有限公司 | Oil field tubular column is with rotatory washing unit |
| CN109764108A (en) * | 2019-03-11 | 2019-05-17 | 大连碧蓝节能环保科技有限公司 | Composite cone tooth mechanical differential structure |
| CN210370555U (en) * | 2019-08-06 | 2020-04-21 | 成都阿斯贝瑞科技有限公司 | Rotary well-flushing tool with liquid damping speed reducer |
| CN110439464B (en) * | 2019-08-14 | 2020-11-06 | 中国石油大学(华东) | Underground rotary particle jet injection drilling device |
| CN212201955U (en) * | 2020-01-06 | 2020-12-22 | 四机赛瓦石油钻采设备有限公司 | Constant-speed rotating jet tool |
-
2021
- 2021-06-01 CN CN202110608490.3A patent/CN113338829B/en active Active
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