CN2926474Y - Screw driller transmission axis assembly with double-prevention structure - Google Patents
Screw driller transmission axis assembly with double-prevention structure Download PDFInfo
- Publication number
- CN2926474Y CN2926474Y CN 200620025968 CN200620025968U CN2926474Y CN 2926474 Y CN2926474 Y CN 2926474Y CN 200620025968 CN200620025968 CN 200620025968 CN 200620025968 U CN200620025968 U CN 200620025968U CN 2926474 Y CN2926474 Y CN 2926474Y
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- power transmission
- shell
- bearing
- journal bearing
- 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 - Lifetime
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Abstract
A dual-protection structure screw rod drill transmission shaft assembly comprises a transmission shaft, a shell of the transmission shaft, a thrust-bearing arranged in a clearance between the transmission shaft and the shell of the transmission shaft, a lower journal bearing dynamic set fixed with the transmission shaft and adjacent to a lower end of the thrust-bearing, and a lower journal bearing static hub embedded in the shell of the transmission shell, a upper journal bearing dynamic set fixed with the transmission shaft and adjacent to an upper end of the thrust-bearing, and an upper journal bearing static hub embedded in the shell of the transmission shaft. The upper journal bearing dynamic hub is connected with the transmission shaft thread. One end of dynamic set of the lower journal bearing dynamic hub is connected with a big end thread of the transmission shaft and the other end of the transmission shaft is connected with lock female thread of the transmission shaft. A shoulder part of the transmission shaft is in shape of transition arc. The utility model has advantages as follows: 1, of improving reliability of the transmission shaft assembly and prolonging the useful life. 2. of having a simple and convenient maintenance.
Description
Technical field
The utility model belongs to the down-hole helicoid hydraulic motor that oil drilling or well workover are used, and more particularly, relates to a kind of two anti-structure screw drill transmission shaft assembly.
Background technology
At present helicoid hydraulic motor is widely used in oil drilling or well workover, and its driving-shaft assembly comprises the tubulose transmission shaft shell, the power transmission shaft of suit in transmission shaft shell, on the power transmission shaft in turn suit band up-thrust bearing, on journal bearing, lower radial bearing etc.The screw drill transmission shaft assembly of this form of structure, in use, screw drill transmission shaft ruptures sometimes, its fracture location all occurs in the end, upper end that is positioned at lower radial bearing, power transmission shaft broke one section because without any stopping, can break away from drilling tool, fall into the shaft bottom together with drill bit, the well accident that falls is for guaranteeing proceeding of drillng operation, just must salvage, time-consuming, the labor intensive material resources increase operating cost.Be anti-falling stop well accident, in the design of screw drill transmission shaft assembly, anti-drop device to be arranged, it as the patent No. 91221643.3 screw drill transmission shaft assembly apparatus, adopt appearance to wear the anti-lost nut and the power transmission shaft screw connection structure of boss, the screw thread of this structure is fragile, damage the anti-lost poor performance in back, anti-lost nut is difficult to dismounting after the thread damage, also can cause power transmission shaft to scrap after the thread damage of power transmission shaft; The patent No. is 01260278.7 screw drill transmission shaft assembly for another example, adopt the sheath of the semi-ring of mounting strap boss in the groove being installed on the power transmission shaft and being used for fixing the semi-ring position, and protruding the satisfying the need on the semi-ring is positioned at the middle part of semi-ring external surface, the patent No. is 200420038181.9 screw drill transmission shaft assembly in addition, on being positioned at, power transmission shaft is provided with groove on one of the journal bearing inner ring section, the two all is to cut out cannelure on power transmission shaft, but power transmission shaft itself is exactly the position that stress ratio is concentrated, in use, break at this position easily, therefore can not thoroughly solve anti-fall problem.
The utility model content
Problem to be solved in the utility model is to overcome the above-mentioned defective of aforementioned existence, and a kind of two anti-structure screw drill transmission shaft assembly is provided.
The utility model solves its technical problem and takes following technical scheme to realize, a kind of two anti-structure screw drill transmission shaft assemblies that provide according to the utility model, it comprises power transmission shaft and transmission shaft shell, the thrust bearing that is positioned at the stage casing is housed in the gap between power transmission shaft and transmission shaft shell, with the lower end adjacency of thrust bearing and be fixed in the moving cover of lower radial bearing on the power transmission shaft and be inlaid in the quiet cover of lower radial bearing on the transmission shaft shell, with the upper end of thrust bearing in abutting connection with and be fixed in that last journal bearing on the power transmission shaft is moving to be overlapped and be inlaid in the quiet cover of last journal bearing on the transmission shaft shell, it is characterized in that: the said moving cover of journal bearing of going up is threaded with power transmission shaft, thereby avoid causing the off-axis head at frequent viscous motion, phenomenons such as last journal bearing damage, because special circumstances power transmission shaft A position, when promptly going up the moving cover of journal bearing, play anti-lost effect simultaneously with the generation fracture of water cap junction; The moving cover of lower radial bearing one end is threaded with the big end of power transmission shaft, makes it when compound creeping into, and can and not shake excessively and loosening because of friction, and the other end of the moving cover of lower radial bearing is threaded with locknut, makes anti-lost performance more reliable; The shoulder portion of power transmission shaft is an arc transition, eliminates the shoulder location of transmission, removes the middle part screw thread, makes axis body stress uniform, is difficult for cracking.
The utility model compared with prior art has significant advantage and beneficial effect.By above technical scheme as can be known, the utility model has following advantage at least under the structure configuration of excellence:
1, improves the reliability of driving-shaft assembly, prolonged its application life.
2, simple in maintenance, convenient.
The specific embodiment of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the specific embodiment that foundation the utility model is provided, structure, feature and effect thereof describe in detail as after.
See also figure, a kind of two anti-structure screw drill transmission shaft assembly, it comprises power transmission shaft 1 and transmission shaft shell 2, the thrust bearing 3 that is positioned at the stage casing is housed in the gap between power transmission shaft 1 and transmission shaft shell 2, move cover 4 and the quiet cover 5 of lower radial bearing that is inlaid on the transmission shaft shell 2 with the lower radial bearing lower end adjacency and that be fixed on the power transmission shaft 1 of thrust bearing 3, move cover 6 and the quiet cover 7 of last journal bearing that is inlaid on the transmission shaft shell 2 with the upper end adjacency of thrust bearing 3 and the last journal bearing that is fixed on the power transmission shaft 1, the said moving cover of journal bearing 6 gone up is threaded with power transmission shaft 1, the quiet cover 7 of last journal bearing and transmission shaft shell 2 are fixedlyed connected by woodruff key, thereby avoid causing the off-axis head at frequent viscous motion, phenomenons such as last journal bearing damage, because special circumstances power transmission shaft A position, when promptly going up the moving cover of journal bearing, play anti-lost effect simultaneously with the generation fracture of water cap 10 junctions; One end of the moving cover 4 of lower radial bearing is threaded with power transmission shaft 1 big end, make it when compound creeping into, can and not shake excessive and loosening because of friction, the other end of the moving cover 4 of lower radial bearing is threaded with locknut 9, the quiet cover 5 of lower radial bearing is threaded with transmission shaft shell 2, makes anti-lost performance more reliable; The shoulder portion 8 of power transmission shaft 1 is an arc transition, eliminates the shoulder location of transmission, removes the middle part screw thread, makes axis body stress uniform, is difficult for cracking.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1, a kind of two anti-structure screw drill transmission shaft assembly, it comprises power transmission shaft and transmission shaft shell, the thrust bearing that is positioned at the stage casing is housed in the gap between power transmission shaft and transmission shaft shell, with the lower end adjacency of thrust bearing and be fixed in the moving cover of lower radial bearing on the power transmission shaft and be inlaid in the quiet cover of lower radial bearing on the transmission shaft shell, with the upper end of thrust bearing in abutting connection with and be fixed in the moving cover of last journal bearing on the power transmission shaft and be inlaid in the quiet cover of last journal bearing on the transmission shaft shell, it is characterized in that: the said journal bearing of going up moves to overlap and is threaded with power transmission shaft; Moving cover one end of lower radial bearing is threaded with the big end of power transmission shaft, and the moving cover other end of lower radial bearing is threaded with locknut; The shoulder portion of power transmission shaft is an arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620025968 CN2926474Y (en) | 2006-04-30 | 2006-04-30 | Screw driller transmission axis assembly with double-prevention structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620025968 CN2926474Y (en) | 2006-04-30 | 2006-04-30 | Screw driller transmission axis assembly with double-prevention structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2926474Y true CN2926474Y (en) | 2007-07-25 |
Family
ID=38280718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620025968 Expired - Lifetime CN2926474Y (en) | 2006-04-30 | 2006-04-30 | Screw driller transmission axis assembly with double-prevention structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2926474Y (en) |
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 |
| CN102268962A (en) * | 2011-08-09 | 2011-12-07 | 西南石油大学 | Oil seal screw drilling tool transmission shaft assembly with pressure compensation function |
| CN103615194A (en) * | 2013-12-03 | 2014-03-05 | 东营博深石油机械有限责任公司 | Oil seal spindle assembly of screw drill |
| CN104196441A (en) * | 2014-08-11 | 2014-12-10 | 江阴东辰钻探设备有限公司 | Transmission shaft assembly 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) |
| CN104533281A (en) * | 2014-12-09 | 2015-04-22 | 沈阳工业大学 | Oil seal PDM (positive displacement motor) drill |
| CN105507807A (en) * | 2016-01-22 | 2016-04-20 | 江阴东辰钻探设备有限公司 | Abrasion-resistant coating transmission shaft of screw drill |
| CN106015313A (en) * | 2016-04-29 | 2016-10-12 | 天津立林石油机械有限公司 | Split type TC bearing |
| CN106795739A (en) * | 2014-10-17 | 2017-05-31 | 艾斯米恩控股有限责任公司 | Hammer drill |
-
2006
- 2006-04-30 CN CN 200620025968 patent/CN2926474Y/en not_active Expired - Lifetime
Cited By (11)
| 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 |
| CN102268962A (en) * | 2011-08-09 | 2011-12-07 | 西南石油大学 | Oil seal screw drilling tool transmission shaft assembly with pressure compensation function |
| CN103615194A (en) * | 2013-12-03 | 2014-03-05 | 东营博深石油机械有限责任公司 | Oil seal spindle assembly of screw drill |
| CN104196441A (en) * | 2014-08-11 | 2014-12-10 | 江阴东辰钻探设备有限公司 | Transmission shaft assembly 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) |
| 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 |
| CN106795739A (en) * | 2014-10-17 | 2017-05-31 | 艾斯米恩控股有限责任公司 | Hammer drill |
| CN104533281A (en) * | 2014-12-09 | 2015-04-22 | 沈阳工业大学 | Oil seal PDM (positive displacement motor) drill |
| CN105507807A (en) * | 2016-01-22 | 2016-04-20 | 江阴东辰钻探设备有限公司 | Abrasion-resistant coating transmission shaft of screw drill |
| CN106015313A (en) * | 2016-04-29 | 2016-10-12 | 天津立林石油机械有限公司 | Split type TC bearing |
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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: 20070725 |
|
| EXPY | Termination of patent right or utility model |