CN202157745U - Screw drilling tool transmission shaft assembly with vibration reduction function - Google Patents
Screw drilling tool transmission shaft assembly with vibration reduction function Download PDFInfo
- Publication number
- CN202157745U CN202157745U CN2011202763146U CN201120276314U CN202157745U CN 202157745 U CN202157745 U CN 202157745U CN 2011202763146 U CN2011202763146 U CN 2011202763146U CN 201120276314 U CN201120276314 U CN 201120276314U CN 202157745 U CN202157745 U CN 202157745U
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- transmission shaft
- drive shaft
- bearing
- spline
- lower drive
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Abstract
The utility model relates to a screw drilling tool transmission shaft assembly with a vibration reduction function for oil and gas drilled wells, which can reduce vibration of drilling tools, prolong service life of the drilling tools and improve drilling speed of machinery. The transmission shaft assembly is composed of a casing, an upper transmission shaft, an upper radial bearing fixed sleeve, an upper radial bearing movable sleeve, a load bearing set, a vibration reduction device, a lower transmission shaft, a lower short section, a mandrel and the like. The technical scheme is that the upper transmission shaft is arranged in the casing, the upper radial bearing fixed sleeve and the upper radial bearing movable sleeve are matched to be installed in an annular space formed by the casing and the upper transmission shaft, and the load bearing set is arranged at the lower ends of the upper radial bearing fixed sleeve and the upper radial bearing movable sleeve. The vibration reduction device is arranged at the lower end of the load bearing set. When the transmission shaft is in work, a spline groove of the upper transmission shaft is matched with a spline of the lower transmission shaft. The lower short section is in threaded connection with the casing, and the mandrel is connected with the upper transmission shaft through threads. The transmission shaft assembly cannot lengthen the length of the drilling tools on the lower portion, has few effects on the drilling tools at the bottom and can be applied to deflecting operation and curved wells.
Description
Technical field
The utility model relates to a kind of screw drill transmission shaft assembly that oil and gas well drilling can reduce drill string vibration that is used for, and particularly relates to a kind of screw drill transmission shaft assembly with vibration-damping function.
Background technology
In the drilling process; Helicoid hydraulic motor and drill bit are depressed at wammel; Creep into through the big moment of torsion of helicoid hydraulic motor output; Particularly rock bit is to lean on the continuous rock crushing of cutter teeth to creep into, and in rock broken moment that is stressed underground drill stem is produced vertically, laterally and the torsional pulse vibration, and is especially more violent when boring hard formation or soft or hard interlayer.Prove according to field measurement, in drilling process, the pressure of the drill amplitude of variation be generally average the pressure of the drill ± 35%～± 100%, peak-peak the pressure of the drill can reach more than 3 times of average the pressure of the drill; The change in torque amplitude is generally average torque ± 14%～± 30%, and peak-peak can reach 1.5 times of average torque.In drilling process, if bouncing of drilling tool can produce the resonance effect, thousands of meters drill string drilling tool is beated together, cause to apply the pressure of the drill and moment of torsion equably, influence the life-span and the rate of penetration of drill string, helicoid hydraulic motor, drill bit.
The positive displacement drill bearing life-span is one of bottleneck of restriction machine life, and vibration can the wearing and tearing of aggravation positive displacement drill bearing.Existing helicoid hydraulic motor mainly bears drilling pressure through the string bearing, and the string bearing is the dotted line contact, bears bigger pressure and shearing force at work, under impact loading, has influenced its application life greatly; And the universal drive shaft infringement that is hit is bigger equally, impacts the damage cause petal and steel ball easily, has reduced normal application life; Also easily because impact shock produces loosening and opens button, each junction button of helicoid hydraulic motor falls the well accident.
At present do not see the helicoid hydraulic motor that is designed with damping means as yet, and external special shock absorber can significantly increase nearly bit drilling tool length usually, the guidance capability of directed brill of influence or compound brill bottomhole assembly.On this basis; Invented a kind of screw drill transmission shaft assembly with vibration-damping function; This instrument can significantly slow down drill vibration to the influence in positive displacement drill bearing life-span, and can improve rate of penetration to a certain extent, and can not increase the length of drilling tool; Influence to BHA is less, can in deflecting operation and crooked hole, use.
Summary of the invention
The purpose of the utility model is: make a trip and reduce drilling cost in order effectively to prolong helicoid hydraulic motor application life of screw drill transmission shaft bearing particularly, to reduce, the spy provides a kind of screw drill transmission shaft assembly with vibration-damping function.
In order to achieve the above object; The utility model solves the technical scheme that this technical problem adopted: a kind of screw drill transmission shaft assembly with vibration-damping function; By housing, go up power transmission shaft, go up the quiet cover of journal bearing, go up the moving cover of journal bearing, loading bearing group, vibration absorber, lower drive shaft, following pipe nipple and mandrel etc. and form; Its architectural feature is: go up power transmission shaft and be installed in enclosure interior, there is spline last power transmission shaft lower end; Quiet cover outer wall of last journal bearing and inwall cooperate with inner walls and the moving cover of last journal bearing outer wall respectively, and the moving cover of last journal bearing inwall cooperates with last power transmission shaft; The loading bearing group is installed in quiet cover of journal bearing and the moving cover of last journal bearing lower end; The loading bearing group is made up of bearing outer ring, steel ball, bearing inner race, outer race and bearing inner ring; And by outer support set spring bearing outer ring and outer race, interior support set spring bearing inner ring and bearing inner ring; Vibration absorber is installed in loading bearing group lower end, and is positioned in the middle of the annular space of support set and outer support set formation, and vibration absorber is combined to form by the dish spring, and the vibration absorber lower end is supported by cushion block and lower drive shaft; Inwall and last power transmission shaft lower end outer wall are fitted on the lower drive shaft, and the lower drive shaft outer wall is fitted with following pipe nipple inwall, and the lower drive shaft endoporus has spline, and under the off working state, the lower drive shaft shoulder is by pipe nipple support down; Following pipe nipple and housing are by being threaded; Mandrel is installed in power transmission shaft and lower drive shaft and cooperates in the hole that forms, and mandrel leans on screw thread to be connected with last power transmission shaft lower end, under the off working state, and mandrel shoulder and the cooperation of lower drive shaft lower surface; The lower drive shaft lower end drill bit that is threaded.
The beneficial effect that the utlity model has is: 1) this tool construction is simple, and length is short, can not increase the length of drilling tool, and is less to the influence of BHA, can in deflecting operation and crooked hole, use; 2) can slow down the influence of drill vibration to helicoid hydraulic motor, the raising helicoid hydraulic motor is the life-span of positive displacement drill bearing particularly, and minimizing makes a trip and reduces drilling cost.
Description of drawings
Fig. 1 is a kind of structural representation with screw drill transmission shaft assembly of vibration-damping function of the utility model.
Fig. 2 is a kind of loading bearing group sketch map with screw drill transmission shaft assembly of vibration-damping function of the utility model.
Fig. 3 is a kind of vibration absorber sketch map with screw drill transmission shaft assembly of vibration-damping function of the utility model.
The generalized section that the spline 21 of Fig. 4 last power transmission shaft 2 that to be a kind of screw drill transmission shaft assembly with vibration-damping function of the utility model obtained by cross section A-A cooperates with the spline 17 of lower drive shaft 15.
Among the figure: 1. housing, 2. go up power transmission shaft, 3. go up the quiet cover of journal bearing, 4. go up the moving cover of journal bearing, 5. packing ring, 6. bearing outer ring; 7. steel ball, 8. bearing inner race, 9. outer race, 10. bearing inner ring, support sets in 11.; 12. the dish spring, 13. dish springs, 14. outer support sets, 15. lower drive shafts, 16. times pipe nipples; 17. spline, 18. mandrels, 19. lower drive shaft lower end screw threads, 20. vibration absorbers, 21. splines; 22. the loading bearing group, 23. cushion blocks, 24. lower drive shaft shoulders, 25. lower drive shaft lower surfaces, 26. mandrel shoulders.
The specific embodiment
Like Fig. 1, Fig. 2, Fig. 3 and shown in Figure 4; The screw drill transmission shaft assembly that the utility model is a kind of to have a vibration-damping function by housing 1, go up power transmission shaft 2, go up the quiet cover of journal bearing 3, go up the moving cover of journal bearing 4, loading bearing group 22, vibration absorber 20, lower drive shaft 15, pipe nipple 16 and mandrel 18 etc. are formed down; Its architectural feature is: go up power transmission shaft 2 and be installed in housing 1 inside, there is spline 21 last power transmission shaft 2 lower ends; Quiet cover 3 outer walls of last journal bearing and inwall cooperate with housing 1 inwall and the moving cover of last journal bearing 4 outer walls respectively, and the moving cover of last journal bearing 4 inwalls cooperate with last power transmission shaft 2; Loading bearing group 22 is installed in quiet cover 3 of journal bearing and the moving cover of last journal bearing 4 lower ends; Loading bearing group 22 is made up of bearing outer ring 6, steel ball 7, bearing inner race 8, outer race 9 and bearing inner ring 10; And by outer support set 14 spring bearing outer rings 6 and outer race 9, interior support set 11 spring bearing inner rings 8 and bearing inner ring 10; Vibration absorber 20 is installed in loading bearing group 22 lower ends, and is positioned in the middle of the annular space of support set 11 and outer support set 14 formation, and vibration absorber 20 is combined to form by the dish spring, and vibration absorber 20 lower ends are supported by cushion block 23 and lower drive shaft 15; Lower drive shaft 15 upper end inwalls and last power transmission shaft 2 lower end outer walls are fitted, and lower drive shaft 15 outer walls are fitted with following pipe nipple 16 inwalls, and the lower drive shaft endoporus has spline; Following pipe nipple 16 and housing 1 are by being threaded; Mandrel 18 is installed in power transmission shaft 2 and cooperates in the hole that forms with lower drive shaft 15, and mandrel 18 leans on screw thread to be connected with last power transmission shaft 2 lower ends; Lower drive shaft lower end screw thread 19 connects drill bit.
The angle of spline 21 than the angle of spline 17 big 5 °～10 °; When in running order; Lower drive shaft 15 is upwards pressed vibration absorber 20; The spline 21 of last power transmission shaft 2 cooperates with the spline 17 of lower drive shaft 15, thereby the moment of torsion that last power transmission shaft 2 provides power drilling tool passes to lower drive shaft 15, when bouncing of drilling tool occurring; Vibration absorber 20 promptly can absorb the vibration that bouncing of drilling tool produces, and slows down the influence of vibration to helicoid hydraulic motor life-span and rate of penetration; When being in off working state; Spline 17 separates with spline 21, and lower drive shaft 15 is to bottom offset, by pipe nipple 16 support lower drive shaft shoulders 24 and mandrel shoulder 26 support the lower drive shaft lower surfaces down; The downward displacement limits of restriction lower drive shaft 2, and play two anti-lost effects.
Claims (4)
1. screw drill transmission shaft assembly with vibration-damping function; By housing (1), go up power transmission shaft (2), go up the quiet cover of journal bearing (3), go up the moving cover of journal bearing (4), loading bearing group (22), vibration absorber (20), lower drive shaft (15), pipe nipple (16) and mandrel (18) etc. are formed down; It is characterized in that: go up power transmission shaft (2) and be installed in housing (1) inside; The quiet cover of last journal bearing (3) outer wall and inwall cooperate with housing (1) inwall and the moving cover of last journal bearing (4) outer wall respectively, and the moving cover of last journal bearing (4) inwall cooperates with last power transmission shaft (2); Loading bearing group (22) is installed in the quiet cover of journal bearing (3) and the moving cover of last journal bearing (4) lower end; Vibration absorber (20) is installed in loading bearing group (22) lower end; And be positioned in the middle of the annular space of support set (11) and outer support set (14) formation, vibration absorber (20) lower end is supported by cushion block (23) and lower drive shaft (15); Inwall and last power transmission shaft (2) lower end outer wall are fitted on the lower drive shaft (15), and lower drive shaft (15) outer wall is fitted with following pipe nipple (16) inwall, and lower drive shaft shoulder (24) is by pipe nipple (16) support down; Following pipe nipple (16) and housing (1) are by being threaded; Mandrel (18) is installed in power transmission shaft (2) and lower drive shaft (15) cooperates in the hole that forms, and mandrel (18) leans on screw thread to be connected with last power transmission shaft (2) lower end; Lower drive shaft lower end screw thread (19) connects drill bit.
2. a kind of screw drill transmission shaft assembly according to claim 1 with vibration-damping function; It is characterized in that: loading bearing group (22) is made up of bearing outer ring (6), steel ball (7), bearing inner race (8), outer race (9) and bearing inner ring (10); And by outer support set (14) spring bearing outer ring (6) and outer race (9), interior support set (11) spring bearing inner ring (8) and bearing inner ring (10).
3. a kind of screw drill transmission shaft assembly with vibration-damping function according to claim 1, it is characterized in that: vibration absorber (20) is combined to form by dish spring (12) and dish spring (13).
4. a kind of screw drill transmission shaft assembly according to claim 1 with vibration-damping function; It is characterized in that: going up power transmission shaft (2) lower end has spline (21); Lower drive shaft (15) endoporus has spline (17), the angle of spline (21) than the angle of spline (17) big 5 °～10 °; When in running order, the spline (21) of last power transmission shaft (2) cooperates with the spline (17) of lower drive shaft (15); When being in off working state, spline (17) separates with spline (21), and lower drive shaft (15) is by following pipe nipple (16) and mandrel shoulder (26) support limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202763146U CN202157745U (en) | 2011-08-01 | 2011-08-01 | Screw drilling tool transmission shaft assembly with vibration reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202763146U CN202157745U (en) | 2011-08-01 | 2011-08-01 | Screw drilling tool transmission shaft assembly with vibration reduction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202157745U true CN202157745U (en) | 2012-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202763146U Expired - Fee Related CN202157745U (en) | 2011-08-01 | 2011-08-01 | Screw drilling tool transmission shaft assembly with vibration reduction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202157745U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268961A (en) * | 2011-08-01 | 2011-12-07 | 西南石油大学 | Screw drill transmission shaft assembly with vibration reduction function |
| CN104314472A (en) * | 2014-10-20 | 2015-01-28 | 江苏航天鸿鹏数控机械有限公司 | Percussion and vibration device of screw drill |
| CN104454945A (en) * | 2014-10-13 | 2015-03-25 | 中国石油天然气集团公司 | Assembled transmission shaft for CAIMS (China Adjustable Instrumented Motor System) |
| CN105156023A (en) * | 2015-09-24 | 2015-12-16 | 四川飞翔能源有限公司 | Screw drill |
| CN109236178A (en) * | 2018-07-31 | 2019-01-18 | 天津立林石油机械有限公司 | Helicoid hydraulic motor buffering driving-shaft assembly |
| CN111219153A (en) * | 2020-03-01 | 2020-06-02 | 伊川县光华轴承厂 | Integrated drill rod and drilling tool slope sleeve moving system and matching method thereof |
-
2011
- 2011-08-01 CN CN2011202763146U patent/CN202157745U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268961A (en) * | 2011-08-01 | 2011-12-07 | 西南石油大学 | Screw drill transmission shaft assembly with vibration reduction function |
| CN102268961B (en) * | 2011-08-01 | 2013-08-14 | 西南石油大学 | Screw drill transmission shaft assembly with vibration reduction function |
| CN104454945A (en) * | 2014-10-13 | 2015-03-25 | 中国石油天然气集团公司 | Assembled transmission shaft for CAIMS (China Adjustable Instrumented Motor System) |
| CN104454945B (en) * | 2014-10-13 | 2017-03-01 | 中国石油天然气集团公司 | A kind of combined transmission shaft for measurement and transmission motor |
| CN104314472A (en) * | 2014-10-20 | 2015-01-28 | 江苏航天鸿鹏数控机械有限公司 | Percussion and vibration device of screw drill |
| CN105156023A (en) * | 2015-09-24 | 2015-12-16 | 四川飞翔能源有限公司 | Screw drill |
| CN105156023B (en) * | 2015-09-24 | 2017-09-01 | 四川飞翔能源有限公司 | Helicoid hydraulic motor |
| CN109236178A (en) * | 2018-07-31 | 2019-01-18 | 天津立林石油机械有限公司 | Helicoid hydraulic motor buffering driving-shaft assembly |
| CN111219153A (en) * | 2020-03-01 | 2020-06-02 | 伊川县光华轴承厂 | Integrated drill rod and drilling tool slope sleeve moving system and matching method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120307 Termination date: 20130801 |