CN202992035U - Oscillating tooth speed reducer of downhole power drill - Google Patents
Oscillating tooth speed reducer of downhole power drill Download PDFInfo
- Publication number
- CN202992035U CN202992035U CN 201220585767 CN201220585767U CN202992035U CN 202992035 U CN202992035 U CN 202992035U CN 201220585767 CN201220585767 CN 201220585767 CN 201220585767 U CN201220585767 U CN 201220585767U CN 202992035 U CN202992035 U CN 202992035U
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- bearing
- speed reducer
- input shaft
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- shaft
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Abstract
The utility model discloses an oscillating tooth speed reducer of a downhole power drill. The oscillating tooth speed reducer comprises an upper joint, wherein a speed reducer shell is connected in a sealing manner to the lower part of the upper joint; a lower plug is connected in a sealing manner to the lower part of the speed reducer shell; a sealing cover is connected in a sealing manner at the lower part of the lower plug; the upper joint, the speed reducer shell, the lower plug and the inner part the sealing cover are communicated with each another; a shock wave tooth is arranged at partial inner wall of the speed reducer shell; an input shaft which rotates relatively is arranged in both the upper joint and the speed reducer shell through an input bearing string; the input shaft is provided with an eccentric shaft section; an output shaft which rotates relatively is arranged in the speed reducer shell, the lower plug and the sealing cover through an output bearing string; an oscillating tooth roller is arranged at the upper part of the output shaft; and the oscillating tooth roller is mutually engaged with both the eccentric shaft section on the input shaft and the shock wave tooth section inside the speed reducer shell. An input shaft alignment bearing which rotates relatively is arranged between the input shaft and the output shaft. A bearing fixing nut is fixedly arranged on the input shaft below the input shaft alignment bearing; and the bearing fixing nut is also fixedly connected to the inner ring of the input shaft alignment bearing.
Description
Technical field
The utility model relates to a kind of oil/gas drilling retarder, relates in particular to a kind of mud motor movable teeth reducer.
Background technique
Turbodrill is very high with the output speed of a few number helicoid hydraulic motor, and generally at 400-600rpm, the required rotating speed of actual well drilled is but very low, generally below 200rpm.Existing down-hole mostly is the gear-engaged type retarder with the power drilling tool retarder, and this retarder is easy to broken teeth under the violent environment of underground vibrating, the therefore poor reliability of this retarder, and working life is short.
The model utility content
The utility model is for deficiency, provides that a kind of reliability is high, the mud motor movable teeth reducer of long service life.
The technological scheme that the utility model solves the problems of the technologies described above is as follows:
a kind of mud motor movable teeth reducer, comprise upper connection, the airtight speed reducer housing that is connected with in upper connection bottom, the airtight lower end cap that is connected with in speed reducer housing bottom, the airtight sealing gland that is connected with in lower end cap bottom, upper connection, speed reducer housing, the inside of lower end cap and sealing gland all communicates, there is the shock wave tooth in speed reducer housing inwall branch, it is characterized in that, upper connection is interior by the relative input shaft that is rotatably installed with of input bearing string with speed reducer housing, on input shaft with eccentric shaft part, speed reducer housing, lower end cap is interior by the relative output shaft that is rotatably installed with of output bearing string with sealing gland, output shaft top is provided with the oscillating tooth roller, shock wave tooth section in eccentric shaft part on oscillating tooth roller and input shaft and speed reducer housing is intermeshing.
According to described a kind of mud motor movable teeth reducer, it is characterized in that the relative input shaft alignment bearing that is rotatably installed with between described input shaft and described output shaft.
According to described a kind of mud motor movable teeth reducer, it is characterized in that, be installed with the bearing set screw nut on the described input shaft of described input shaft alignment bearing below, the bearing set screw nut also is fixedly linked with the interior ring of input shaft alignment bearing.
According to described a kind of mud motor movable teeth reducer, it is characterized in that, between described input shaft and described output shaft by Cock screw with sealing gland is airtight is connected with rotary seal.
According to described a kind of mud motor movable teeth reducer, it is characterized in that the airtight equalizing piston that is connected with between described input shaft and described upper connection.
According to described a kind of mud motor movable teeth reducer, it is characterized in that, described upper connection is provided with oil-filled obstruction, and described lower end cap is provided with lower oil-filled obstruction.
According to described a kind of mud motor movable teeth reducer, it is characterized in that, be provided with inner bearing baffle ring and upper outer bearing baffle ring above described input bearing string, inner bearing baffle ring and described input shaft are fixedly linked, upper outer bearing baffle ring and described speed reducer housing are fixedly linked, the inner bearing baffle ring is connected with the interior ring transmission of described input bearing string, and upper outer bearing baffle ring is connected with the outer shroud transmission of described input bearing string; Be provided with locking nut, back tightening nut and lower outside end ring below described output bearing string, locking nut and back tightening nut and described output shaft are fixedly linked, lower outside end ring and described speed reducer housing are fixedly linked, locking nut is connected with the interior ring transmission of described output bearing string, and lower outside end ring is connected with the outer shroud transmission of described output bearing string.
According to described a kind of mud motor movable teeth reducer, it is characterized in that, airtightly between described lower end cap and sealing gland be connected with output shaft rotary seal.
Retarder described in the utility model is a kind of power drilling tool speed reducer that utilizes oscillating tooth engagement, and this device does not have sharp-pointed profile of tooth, and is multiple tooth engagement, oscillating tooth stressed more even, therefore high, the long service life of reliability of the present utility model.
Description of drawings
Fig. 1 is vertical section structure schematic diagram of the present utility model;
Fig. 2 is the A-A cross-sectional view of Fig. 1.
In accompanying drawing:
1, input shaft; 2, upper connection; 3, equalizing piston; 4, upper oil-filled obstruction; 5, inner bearing baffle ring; 6, upper outer bearing baffle ring; 7, input bearing string; 8, speed reducer housing; 9, oscillating tooth roller; 10, input shaft alignment bearing; 11, bearing set screw nut; 12, Cock screw; 13, sealing gland; 14, rotary seal; 15, output shaft; 16, output bearing string; 17, locking nut; 18, back tightening nut; 19, lower outside end ring; 20, lower end cap; 21, output shaft rotary seal; 22, sealing gland; 23, lower oil-filled obstruction.
Embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
a kind of mud motor movable teeth reducer, as depicted in figs. 1 and 2, comprise upper connection 2, the airtight speed reducer housing 8 that is connected with in upper connection 2 bottoms, the airtight lower end cap 20 that is connected with in speed reducer housing 8 bottoms, the airtight sealing gland 22 that is connected with in lower end cap 20 bottoms, upper connection 2, speed reducer housing 8, the inside of lower end cap 20 and sealing gland 22 all communicates, there is the shock wave tooth in speed reducer housing 8 inwall branches, upper connection 2 is interior by the input bearing string 7 relative input shafts 1 that are rotatably installed with speed reducer housing 8, on input shaft 1 with eccentric shaft part, speed reducer housing 8, lower end cap 20 is interior by the output bearing string 16 relative output shafts 15 that are rotatably installed with sealing gland 22, output shaft 15 tops are provided with oscillating tooth roller 9, oscillating tooth roller 9 is intermeshing with eccentric shaft part and the shock wave tooth section in speed reducer housing 8 on input shaft 1.The relative input shaft alignment bearing 10 that is rotatably installed with between described input shaft 1 and described output shaft 15.Be installed with bearing set screw nut 11 on the described input shaft 1 of described input shaft alignment bearing 10 belows, bearing set screw nut 11 also is fixedly linked with the interior ring of input shaft alignment bearing 10.Between described input shaft 1 and described output shaft 15 by Cock screw 12 with sealing gland 13 is airtight is connected with rotary seal 14.The airtight equalizing piston 3 that is connected with between described input shaft 1 and described upper connection 2.Described upper connection 2 is provided with oil-filled obstruction 4, and described lower end cap 20 is provided with lower oil-filled obstruction 23.
In the present embodiment, be provided with inner bearing baffle ring 5 and upper outer bearing baffle ring 6 above described input bearing string 7, inner bearing baffle ring 5 is fixedly linked with described input shaft 1, upper outer bearing baffle ring 6 is fixedly linked with described speed reducer housing 8, inner bearing baffle ring 5 is connected with the interior ring transmission of described input bearing string 7, and upper outer bearing baffle ring 6 is connected with the outer shroud transmission of described input bearing string 7; Be provided with locking nut 17, back tightening nut 18 and lower outside end ring 19 below described output bearing string 16, locking nut 17 and back tightening nut 18 are fixedly linked with described output shaft 15, lower outside end ring 19 is fixedly linked with described speed reducer housing 8, locking nut 17 is connected with the interior ring transmission of described output bearing string 16, and lower outside end ring 19 is connected with the outer shroud transmission of described output bearing string 16.Airtightly between described lower end cap 20 and sealing gland 22 be connected with output shaft rotary seal 21.
The above is only preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
when using the utility model work, input shaft 1 is connected with turbodrill output shaft or articulated joint for screw drilling rod, and the transmission of power of power drilling tool output is inner to retarder, upper connection 2 is connected with the power drilling tool shell by the tool joint pin on top, and the effect that provides support for equalizing piston 3 is also played in upper connection 2 simultaneously, equalizing piston 3 is used for the pressure of balanced reducer internal lubrication oil and outside drilling fluid, upper oil-filled obstruction 4 and lower oil-filled obstruction 23 lay respectively at top and the bottom of retarder, and oil-filled is one-in-and-one-out, to guarantee oil-filled quality, inner bearing back-up ring 5 and upper outside end ring 6 are used for axial restraint output bearing string 7, can bear axial weight on bit, input bearing string 7 mainly bears the end thrust that the pressure of the drill produces, and also can bear a part of radial force, speed reducer housing 8 tops are connected with upper connection 2, the bottom is connected with lower end cap 20, and there is the shock wave tooth in speed reducer housing 8 interior branch, oscillating tooth roller 9 is cylindrical roller, under the intermeshing effect of shock wave tooth section on input shaft 1 in eccentric shaft part and speed reducer housing 8, both done the spinning motion around self axis, simultaneously do revolution motion around input shaft 1 center again, the revolution motion of oscillating tooth roller 9 passes to output shaft 15, because the center of the center line of eccentric segment on input shaft 1 and speed reducer housing 8 shock wave tooth sections has distance to be the e offset, so input shaft 1 turns around and just promotes oscillating tooth roller 9 revolution (the 1/ shock wave number of teeth) circles, therefore the output speed of output shaft 15 is (the 1/ shock wave number of teeth) of input shaft 1 input speed, input shaft alignment bearing 10 is arranged between input shaft 1 and output shaft 15, guarantees that input shaft 1 is flexible with relatively rotating of output shaft 15, bearing set screw nut 11 is used for preventing that input shaft alignment bearing 10 from axial float occuring, Cock screw 12 is used for fit sealing gland 13, and then compresses rotary seal 14, rotary seal 14 is arranged between input shaft 1 and output shaft 15, prevents that retarder internal lubrication oil from leaking from the binding site between input shaft 1 and output shaft 15, output bearing string 16 is used for righting output shaft 15, locking nut 17 is used for connecting firmly output bearing string 16 and output shaft 15 with back tightening nut 18, lower outer bearing baffle ring 19 is used for compressing output bearing string 16 by the pressuring action of lower end cap 20, prevents that it from respect to speed reducer housing 8, relative movement occuring, lower end cap 19 compresses output bearing string 16 except being used for, and also is used for installing output shaft rotary seal 21, sealing gland 22 is used for compressing output shaft rotary seal 21.
Claims (8)
1. mud motor movable teeth reducer, comprise upper connection (2), the airtight speed reducer housing (8) that is connected with in upper connection (2) bottom, the airtight lower end cap (20) that is connected with in speed reducer housing (8) bottom, the airtight sealing gland (22) that is connected with in lower end cap (20) bottom, upper connection (2), speed reducer housing (8), the inside of lower end cap (20) and sealing gland (22) all communicates, there is the shock wave tooth in speed reducer housing (8) inwall branch, it is characterized in that, upper connection (2) is interior by the relative input shaft (1) that is rotatably installed with of input bearing string (7) with speed reducer housing (8), input shaft (1) is upper with eccentric shaft part, speed reducer housing (8), lower end cap (20) is interior by the relative output shaft (15) that is rotatably installed with of output bearing string (16) with sealing gland (22), output shaft (15) top is provided with oscillating tooth roller (9), oscillating tooth roller (9) is intermeshing with eccentric shaft part and the shock wave tooth section in speed reducer housing (8) on input shaft (1).
2. a kind of mud motor movable teeth reducer according to claim 1, is characterized in that, the relative input shaft alignment bearing (10) that is rotatably installed with between described input shaft (1) and described output shaft (15).
3. a kind of mud motor movable teeth reducer according to claim 2, it is characterized in that, be installed with bearing set screw nut (11) on the described input shaft (1) of described input shaft alignment bearing (10) below, bearing set screw nut (11) also is fixedly linked with the interior ring of input shaft alignment bearing (10).
4. a kind of mud motor movable teeth reducer according to claim 3, is characterized in that, between described input shaft (1) and described output shaft (15) by Cock screw (12) with sealing gland (13) is airtight is connected with rotary seal (14).
5. a kind of mud motor movable teeth reducer according to claim 4, is characterized in that, the airtight equalizing piston (3) that is connected with between described input shaft (1) and described upper connection (2).
6. a kind of mud motor movable teeth reducer according to claim 5, is characterized in that, described upper connection (2) is provided with oil-filled obstruction (4), and described lower end cap (20) is provided with lower oil-filled obstruction (23).
7. the described a kind of mud motor movable teeth reducer of any one according to claim 1 to 6, it is characterized in that, be provided with inner bearing baffle ring (5) and upper outer bearing baffle ring (6) above described input bearing string (7), inner bearing baffle ring (5) is fixedly linked with described input shaft (1), upper outer bearing baffle ring (6) is fixedly linked with described speed reducer housing (8), inner bearing baffle ring (5) is connected with the interior ring transmission of described input bearing string (7), and upper outer bearing baffle ring (6) is connected with the outer shroud transmission of described input bearing string (7); Be provided with locking nut (17), back tightening nut (18) and lower outside end ring (19) below described output bearing string (16), locking nut (17) and back tightening nut (18) are fixedly linked with described output shaft (15), lower outside end ring (19) is fixedly linked with described speed reducer housing (8), locking nut (17) is connected with the interior ring transmission of described output bearing string (16), and lower outside end ring (19) is connected with the outer shroud transmission of described output bearing string (16).
8. a kind of mud motor movable teeth reducer according to claim 7, is characterized in that, airtightly between described lower end cap (20) and sealing gland (22) is connected with output shaft rotary seal (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585767 CN202992035U (en) | 2012-11-08 | 2012-11-08 | Oscillating tooth speed reducer of downhole power drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220585767 CN202992035U (en) | 2012-11-08 | 2012-11-08 | Oscillating tooth speed reducer of downhole power drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202992035U true CN202992035U (en) | 2013-06-12 |
Family
ID=48563216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220585767 Expired - Lifetime CN202992035U (en) | 2012-11-08 | 2012-11-08 | Oscillating tooth speed reducer of downhole power drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202992035U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937163A (en) * | 2012-11-08 | 2013-02-20 | 泉州市双环能源科技有限公司 | Reducer for oscillating teeth of down-hole power drilling tool |
| CN113915294A (en) * | 2020-07-08 | 2022-01-11 | 中国石油化工股份有限公司 | Turbo drill speed reducer and turbo drill with same |
-
2012
- 2012-11-08 CN CN 201220585767 patent/CN202992035U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937163A (en) * | 2012-11-08 | 2013-02-20 | 泉州市双环能源科技有限公司 | Reducer for oscillating teeth of down-hole power drilling tool |
| CN102937163B (en) * | 2012-11-08 | 2017-02-22 | 福建双环能源科技股份有限公司 | Reducer for oscillating teeth of down-hole power drilling tool |
| CN113915294A (en) * | 2020-07-08 | 2022-01-11 | 中国石油化工股份有限公司 | Turbo drill speed reducer and turbo drill with same |
| CN113915294B (en) * | 2020-07-08 | 2023-03-28 | 中国石油化工股份有限公司 | Turbo drill speed reducer and turbo drill with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 362000 Fujian city of Quanzhou Province Economic and Technological Development Zone Ji San Tai Lu C Business Center No. 577 Building 2 layer Patentee after: FUJIAN SHUANG HUAN ENERGY TECHNOLOGY CO., LTD. Address before: 362000 A, exhibition Town, Licheng District, Quanzhou, Fujian Patentee before: Quanzhou Twindisc Energy Technology Co., Ltd. |