CN104763322B - Four-loosening-preventing and two-falling-preventing type power output shaft of screw drill - Google Patents
Four-loosening-preventing and two-falling-preventing type power output shaft of screw drill Download PDFInfo
- Publication number
- CN104763322B CN104763322B CN201510150238.7A CN201510150238A CN104763322B CN 104763322 B CN104763322 B CN 104763322B CN 201510150238 A CN201510150238 A CN 201510150238A CN 104763322 B CN104763322 B CN 104763322B
- Authority
- CN
- China
- Prior art keywords
- bearing
- main shaft
- power output
- locking nut
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
Abstract
The invention discloses a four-loosening-preventing and two-falling-preventing type power output shaft of a screw drill. The power output shaft comprises a main shaft 1, a bearing section housing 4 positioned at the outer side of the main shaft, and a centering device 8 positioned at the outer side of the bearing section housing; upper radial bearings 3, rolling bearing sets 7 and lower radial bearings 12 are arranged in the main shaft and the bearing section housing; the main shaft 1 is connected with a bearing housing 4 at the outer side of the main shaft through a housing locking nut 13; an upper locking nut 2 is arranged between the main shaft 1 and each upper radial bearing 3; the bearing section housing 4 is connected with the centering device 8 through a centering device nut 10; falling preventing locking nuts 11 and adjusting separating sleeves 9 are arranged between the rolling bearing sets 7, the main shaft 1 and the lower radial bearings 12.
Description
Technical field
The present invention relates to a kind of drilling well, well workover mud motor, four locking pairs of more particularly, to a kind of helicoid hydraulic motor anti-
Fall power output shaft.
Technical background
Obtain high speed development with increasing to the demand of the energy, resource, domestic drilling technology with technology, greatly
Promoted the development of mud motor particularly helicoid hydraulic motor.Helicoid hydraulic motor is initially widely used in straight well, with money
Source exploitation and the development of drilling technology, the appearance of the series of complex well such as substantial amounts of directional well, extended reach well and horizontal well, spiral shell
The advantage of bar drill tool is more obvious, certainly also has a lot of problems demand to solve.As: 1. manometric pressure raises suddenly, can make
Become motor stall, the threaded appearance being likely to result in helicoid hydraulic motor output shaft assembly loosens；2. output shaft is stuck does not turn suddenly,
Bit port is blocked, and bit bouncing phenomenon occurs, and the threaded appearance that will also result in helicoid hydraulic motor output shaft assembly loosens；3. export
It is easy to there is threaded loosening in the very big axial load that bearing is produced by the pressure of the drill；4. rolling bearing, the power born is very
Greatly, it is susceptible to axial float, have a strong impact on serviceability and the life-span of helicoid hydraulic motor.Because output shaft is under helicoid hydraulic motor
End, finds that these problems are relatively difficult, it is then desired to have very high requirement to the anti-lost locking of helicoid hydraulic motor output shaft, prevents
Unnecessary loss.
Content of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of good helicoid hydraulic motor output shaft of anti-lost anti-loosening property is total
Become.
The technical solution used in the present invention is:
A kind of four locking double anti-lost power output shafts of helicoid hydraulic motor, including main shaft 1, the bearing section shell outside main shaft
4 and be located at bearing section shell outside centralizer 8, be provided with journal bearing 3, rolling bearing group 7 in described main shaft and bearing section shell
With lower radial bearing 12；Bearing case 4 outside main shaft 1 and main shaft is connected by housing locking nut 13, main shaft 1 and upper radial direction
It is provided with upper locking nut 2, bearing section shell 4 is connected by centralizer nut 10 with centralizer 8, main shaft 1 and the axis of rolling between bearing 3
Hold and be provided with anti-lost locking nut 11 between group 7, lower radial bearing 12 and be provided with adjustment spacer 9.
Further, described anti-lost locking nut 11 is levoform screw thread.
Further, described upper locking nut 2 is right-spiral nut.
Further, it is provided with woodruff key 5, bearing section between described main shaft 1 and upper journal bearing 3 and rolling bearing group 7
It is provided with round key 6 between shell 4 and upper journal bearing 3 and rolling bearing group 7, be provided between main shaft 1 and lower radial bearing 12
Round key 14.
Advantages of the present invention: double anti-lost four locking power output shafts, upper locking nut and the anti-lost lock of above-mentioned helicoid hydraulic motor
Jack panel prevents the loosening phenomenon of threaded connection element and the unexpected stuck phenomenon of output shaft together.Two round keys and half
Round key, serves the effect of radial positioning it is therefore prevented that the phenomenon falling off in output shaft, with anti-lost locking nut, upper locking screw
It is ensured that the concentricity of each bearing, the radial load that in rolling bearing group, each bearing is subject to uniformly, improves for female cooperation together
Bearing is being oriented, the intensity in well straightening and guide digging operation and life-span.Centralizer nut, righting are provided with centralizer
Device can be changed and dismantle, and be conducive to directional operation, can lift the rigidity of drilling tool, increase the stability of drill bit revolution, can
Improve the service life of drill bit, increase rate of penetration.
Brief description
Fig. 1 is the output shaft part cross section structure diagram of the present invention.
In figure, 1, main shaft, 2, upper locking nut, 3, upper journal bearing, 4, bearing section shell, 5, woodruff key, 6, round key, 7,
Rolling bearing group, 8, centralizer, 9, adjustment spacer, 10, centralizer nut, 11, anti-lost locking nut, 12, lower radial bearing,
13rd, housing locking nut, 14, round key.
Specific embodiment
Below in conjunction with the accompanying drawings and be embodied as the particular content that detailed example describes the present invention.
As shown in figure 1, a kind of four locking double anti-lost power output shafts of helicoid hydraulic motor, including main shaft 1, it is located at outside main shaft
Bearing section shell 4 and be located at bearing section shell outside centralizer 8, be provided with described main shaft and bearing section shell journal bearing 3, rolling
Dynamic bearing group 7 and lower radial bearing 12.
Bearing case 4 outside main shaft 1 and main shaft is connected by housing locking nut 13, main shaft 1 and upper journal bearing 3 it
Between be provided with upper locking nut 2, be provided with woodruff key 5, bearing section shell 4 between main shaft 1 and upper journal bearing 3 and rolling bearing group 7
It is provided with round key 6 and upper journal bearing 3 and rolling bearing group 7 between, bearing section shell 4 passes through centralizer nut with centralizer 8
10 connection, be provided between main shaft 1 and rolling bearing group 7, lower radial bearing 12 anti-lost locking nut 11 and be provided with adjustment every
Set 9, described anti-lost locking nut 11 is levoform screw thread；It is provided with round key 14 between main shaft 1 and lower radial bearing 12.
The anti-lost locking device of helicoid hydraulic motor output shaft of the present invention is the key device of helicoid hydraulic motor, is directly connected to screw rod
The force-bearing situation of drilling tool middle (center) bearing, directly affects using effect and the life-span of helicoid hydraulic motor.
The anti-lost locking device of helicoid hydraulic motor passes through upper locking nut 2 and anti-lost locking nut 11 and by upper journal bearing 3 and rolls
Dynamic bearing group 7 is locked together, and anti-lost locking nut 11 is levoform screw thread, i.e. anti-pitch thread, and main shaft 1 rotates as dextrorotation
Turn drilling, the anti-lost nut of rotation 11 with main shaft 1 up tightens；Upper locking nut 2 is right-spiral nut, main shaft 1 rotary drilling
Enter, upper locking nut 2 is locked downwards, along with the cooperation of housing locking nut 13 is it is ensured that the locking of bearing group, play triple
Locking acts on.
In operation, the unexpected bit bouncing of output shaft and during the special circumstances such as motor is fallen off in helicoid hydraulic motor,
Instantaneous counter motion between helicoid hydraulic motor top and the bottom, woodruff key 5 and round key 6, round key 14 radial positionings can be caused
Effect, can fix the position of journal bearing 3, rolling bearing group 7 and lower radial bearing 12 it is ensured that rolling bearing group 7
The concentricity of each bearing, makes each shaft strength uniformly, prevents rolling bearing group 7 from the possibility falling off, centralizer 8 is arranged
Centralizer nut 10, it is therefore prevented that loosening occurs in centralizer 8, also can make centralizer 8 be conveniently replaceable simultaneously and adapt to different drilling wells
Operating mode, whole output shaft plays the effect of four locking double anti-lost replaceable centralizers.
Claims (4)
1. a kind of the four of helicoid hydraulic motor locking double anti-lost power output shafts it is characterised in that: include main shaft 1, be located at outside main shaft
Bearing section shell 4 and be located at bearing section shell outside centralizer 8, be provided with described main shaft and bearing section shell journal bearing 3, rolling
Dynamic bearing group 7 and lower radial bearing 12；Bearing case 4 outside main shaft 1 and main shaft is connected by housing locking nut 13, main shaft
It is provided with upper locking nut 2, bearing section shell 4 is connected by centralizer nut 10 with centralizer 8, main shaft between 1 and upper journal bearing 3
It is provided with anti-lost locking nut 11 between 1 and rolling bearing group 7, lower radial bearing 12 and be provided with adjustment spacer 9.
2. the four of a kind of helicoid hydraulic motor according to claim 1 locking double anti-lost power output shafts it is characterised in that: described
Anti-lost locking nut 11 is levoform screw thread.
3. the four of a kind of helicoid hydraulic motor according to claim 1 locking double anti-lost power output shafts it is characterised in that: described
Upper locking nut 2 is right-spiral nut.
4. the four of a kind of helicoid hydraulic motor according to claim 1 locking double anti-lost power output shafts it is characterised in that: described
It is provided with woodruff key 5, bearing section shell 4 and upper journal bearing 3 and rolling between main shaft 1 and upper journal bearing 3 and rolling bearing group 7
It is provided with round key 6 between bearing group 7, between main shaft 1 and lower radial bearing 12, be provided with round key 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510150238.7A CN104763322B (en) | 2015-03-31 | 2015-03-31 | Four-loosening-preventing and two-falling-preventing type power output shaft of screw drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510150238.7A CN104763322B (en) | 2015-03-31 | 2015-03-31 | Four-loosening-preventing and two-falling-preventing type power output shaft of screw drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104763322A CN104763322A (en) | 2015-07-08 |
| CN104763322B true CN104763322B (en) | 2017-01-18 |
Family
ID=53645379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510150238.7A Expired - Fee Related CN104763322B (en) | 2015-03-31 | 2015-03-31 | Four-loosening-preventing and two-falling-preventing type power output shaft of screw drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104763322B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9273442B2 (en) * | 2003-12-18 | 2016-03-01 | R&B Leasing, Llc | Composite self-drilling soil nail and method |
| CN1661196A (en) * | 2004-02-26 | 2005-08-31 | 黄伟 | Screwdrill of synergic action |
| CN201778649U (en) * | 2010-08-17 | 2011-03-30 | 山东陆海石油装备有限公司 | Anti-falling screw drill |
| CN203097708U (en) * | 2012-09-27 | 2013-07-31 | 中国石油集团渤海石油装备制造有限公司 | Anti-fall device for transmission shaft of screw drill |
| CN102852455B (en) * | 2012-09-28 | 2015-04-15 | 李少江 | Percussion drilling tool |
| CN103883246B (en) * | 2014-03-31 | 2016-02-17 | 青岛金江源工贸有限公司 | Underground high-efficient helicoid hydraulic motor |
| CN204511289U (en) * | 2015-03-31 | 2015-07-29 | 青岛江汉石油机械有限公司 | A kind of four locking two anti-lost power output shafts of helicoid hydraulic motor |
-
2015
- 2015-03-31 CN CN201510150238.7A patent/CN104763322B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104763322A (en) | 2015-07-08 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20190331 |
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| CF01 | Termination of patent right due to non-payment of annual fee |