CN2851513Y - Anti-shock transmission shaft assembly - Google Patents
Anti-shock transmission shaft assembly Download PDFInfo
- Publication number
- CN2851513Y CN2851513Y CN 200520130045 CN200520130045U CN2851513Y CN 2851513 Y CN2851513 Y CN 2851513Y CN 200520130045 CN200520130045 CN 200520130045 CN 200520130045 U CN200520130045 U CN 200520130045U CN 2851513 Y CN2851513 Y CN 2851513Y
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- Prior art keywords
- transmission shaft
- bearing
- shock
- shaft assembly
- thrust bearing
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Abstract
The utility model relates to an anti-shock transmission shaft assembly which is matched with screw drills used in petroleum and natural gas drilling industries. The anti-shock transmission shaft assembly comprises a transmission shaft 1, a shell body 2, a radial bearing 3, a thrust bearing 4 and a shock absorber 5, wherein the radial bearing 3, the thrust bearing 4 and the shock absorber 5 are respectively arranged between the transmission shaft 1 and the shell body 2. The utility model is added with an elastic shock absorption function on the structural basis of a conventional transmission shaft in view of the characteristic that under general well drilling work conditions, well bottom has strong impact force to drills, which can effectively moderate the impact force of the well bottom, protect critical members, such as bearing, etc., and prolong the service life of the transmission shaft.
Description
Technical field
The utility model relates to the oil and gas well drilling industry, especially the shock resistance driving-shaft assembly on the indispensable especially helicoid hydraulic motor in directional well, horizontal well and multilateral well operation.
Background technology
Drilling condition is abominable, impacts serious
Usually in drillng operation, the load that helicoid hydraulic motor bears is impact.Impact in the drillng operation is mainly from following two aspects:
The A gear wheel rolls and causes drill bit extensional vibration
In drill bit when work,, gear wheel rolls, and tooth and contacting of shaft bottom are that monodentate, bidentate interlock and carry out.During monodentate contact shaft bottom, the center of gear wheel is in the extreme higher position; The then center decline of tooth during bidentate contact shaft bottom.Constantly exchange up and down of position along with the roller cone center of gear wheel pumps drill bit vertically, is exactly the extensional vibration of drill bit.This is a kind of vibration of upper frequency.
B is because the not gentle boss in shaft bottom causes drill bit extensional vibration
Owing to the shaft bottom is gentle boss is not arranged, also can cause drill bit and drillstring vibrations, often frequency is lower, amplitude is bigger in this vibration.
Drill bit is in the extensional vibration in shaft bottom, make drill string constantly compression with uphold, lower drilling string is converted to impact forces to the stratum to this periodically variable elastic deformation energy by drill bit.This impact forces helps fractured rock, if but impact and excessively will damage drill bit and drilling tool, cause adverse consequences.
Do not have damping device in the helicoid hydraulic motor, lack self-protection ability
At present, all do not have damping device in the helicoid hydraulic motor, its structure mainly comprises power transmission shaft, housing, thrust bearing and journal bearing.The impact force in shaft bottom all is to act directly on the power transmission shaft thrust bearing of helicoid hydraulic motor, when impact force is excessive, will damage thrust bearing, and the drilling tool running is broken down.
Mode of occupation by the scene sees that the drilling tool of each manufacturer production all often has the situation of bearing fragmentation to take place.
Summary of the invention
The purpose of this utility model is to provide a kind of shaft bottom that can effectively reduce to impact the drilling tool power transmission shaft is destroyed shock proof driving-shaft assembly.
The utility model is achieved in that and comprises and power transmission shaft 1, housing 2, journal bearing 3, thrust bearing 4, damper 5 journal bearing 3, thrust bearing 4, damper 5 are housed respectively between power transmission shaft 1 and the housing 2.
The utility model also adopts following technical scheme:
Advantage of the present utility model is: increased damping on the architecture basics of original power transmission shaft.Damping is made up of one group of ring spring, and this kind spring has compact conformation, bearing capacity is strong and reciprocal stroke is little characteristics.Owing to ring spring has been arranged as damping, drilling tool in the course of the work, the impact force that the shaft bottom affacts in the driving-shaft assembly will effectively be weakened, and has so just reached protection bearing assembly, the raising drilling tool purpose in application life
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, form by power transmission shaft 1, housing 2, journal bearing 3, thrust bearing 4, damper 5, journal bearing 3, thrust bearing 4, damper 5 are housed respectively between power transmission shaft 1 and the housing 2, and the damper 5 between housing 2, power transmission shaft 1, thrust bearing is made up of one group of ring spring.
Driving-shaft assembly is one of chief component of helicoid hydraulic motor, and it generally is assemblied in the bottom of drilling tool, includes significant components such as journal bearing 3, thrust bearing 4, is one of critical component of decision drilling tool performance.The utility model promptly is a kind of screw drill transmission shaft assembly that has from shock-absorbing function, because inside has increased the damper 5 that ring spring is formed, can improve the shock resistance of drilling tool significantly, prolongs its application life, reduces drilling cost.
Claims (2)
1, shock resistance driving-shaft assembly, comprise power transmission shaft (1), housing (2), journal bearing (3), thrust bearing (4), damper (5), it is characterized in that: journal bearing (3), thrust bearing (4), damper (5) are housed respectively between power transmission shaft (1) and the housing (2).
2, shock resistance driving-shaft assembly according to claim 1 is characterized in that: the damper (5) between housing (2), power transmission shaft (1), thrust bearing (4) is made up of one group of ring spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520130045 CN2851513Y (en) | 2005-11-03 | 2005-11-03 | Anti-shock transmission shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520130045 CN2851513Y (en) | 2005-11-03 | 2005-11-03 | Anti-shock transmission shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2851513Y true CN2851513Y (en) | 2006-12-27 |
Family
ID=37585469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520130045 Expired - Lifetime CN2851513Y (en) | 2005-11-03 | 2005-11-03 | Anti-shock transmission shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2851513Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061888A (en) * | 2011-01-04 | 2011-05-18 | 潍坊盛德石油机械制造有限公司 | Impact-resistant screw drill tool |
| CN102108835A (en) * | 2010-12-27 | 2011-06-29 | 中国石油化工集团公司 | Motor impact transmission shaft |
| CN101581196B (en) * | 2009-06-05 | 2012-01-11 | 李鹏飞 | Impacting helicoid hydraulic motor and transmission shaft assembly |
| CN105508405A (en) * | 2016-01-29 | 2016-04-20 | 江苏保捷锻压有限公司 | Flanged shaft with fender bracket |
| CN106050154A (en) * | 2016-06-03 | 2016-10-26 | 西南石油大学 | Anti-stagnation tool based on flexible rods |
-
2005
- 2005-11-03 CN CN 200520130045 patent/CN2851513Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581196B (en) * | 2009-06-05 | 2012-01-11 | 李鹏飞 | Impacting helicoid hydraulic motor and transmission shaft assembly |
| CN102108835A (en) * | 2010-12-27 | 2011-06-29 | 中国石油化工集团公司 | Motor impact transmission shaft |
| CN102061888A (en) * | 2011-01-04 | 2011-05-18 | 潍坊盛德石油机械制造有限公司 | Impact-resistant screw drill tool |
| CN102061888B (en) * | 2011-01-04 | 2013-03-27 | 潍坊盛德石油机械制造有限公司 | Impact-resistant screw drill tool |
| CN105508405A (en) * | 2016-01-29 | 2016-04-20 | 江苏保捷锻压有限公司 | Flanged shaft with fender bracket |
| CN106050154A (en) * | 2016-06-03 | 2016-10-26 | 西南石油大学 | Anti-stagnation tool based on flexible rods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061227 |
|
| EXPY | Termination of patent right or utility model |