CN201851038U - Bearing centralizer - Google Patents
Bearing centralizer Download PDFInfo
- Publication number
- CN201851038U CN201851038U CN2010206205835U CN201020620583U CN201851038U CN 201851038 U CN201851038 U CN 201851038U CN 2010206205835 U CN2010206205835 U CN 2010206205835U CN 201020620583 U CN201020620583 U CN 201020620583U CN 201851038 U CN201851038 U CN 201851038U
- Authority
- CN
- China
- Prior art keywords
- bearing
- thread spindle
- clutch shaft
- centralizer
- sleeved
- 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
The utility model relates to a bearing centralizer which comprises a threaded shaft, two bearings, a jacket, a cap and an asbestos cord, wherein the jacket is sleeved on the two bearings respectively, the two bearings are sleeved at both ends of the threaded shaft respectively, the jacket is connected with the threaded shaft through the two bearings and provided with positioning steps corresponding to the bearings, the cap is arranged at one end of the threaded shaft, and the asbestos cord is arranged in a slot outside the cap. The bearing centralizer has the advantages of simple structure, convenience in use and reliability in connection, has the function of righting and guiding the drilling rod for obtaining straighter drill holes, reduces the phenomenon of deflection in the drilling process and can be suitable for rock drilling tools in the deep hole field for geology and mining, oil wells, terrestrial heat and the like.
Description
Technical field
The utility model relates to a kind of bearing centralizer, particularly a kind ofly is exclusively used in the bearing centralizer that the deep hole operation prevents the drilling rod deflection.
Background technology
When carrying out the deep drilling operation, along with the continuous intensification of creeping into operation, drilling rod also needs continuous lengthening, at present extension arm is adopted is drilling rod and drilling rod ways of connecting successively, on every side without any support fixation, therefore to the swing of drilling rod almost without any restriction, under the situation that drilling rod constantly extends, the swing of drilling rod will be more and more obvious, this will cause the drilling rod deflection, causes the pore-forming depart, makes the lower even calcellation of pore-forming straightness accuracy, increase cost, caused the wasting of resources.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art and provides a kind of simple in structure, and long service life does not influence the moment of torsion transmission, connects reliably, can effectively limit the swing of drilling rod, improves the bearing centralizer of pore-forming straightness accuracy.
The purpose of this utility model is achieved by following technical proposals:
A kind of bearing centralizer, it comprises that overcoat, integral body are thin thread spindle, clutch shaft bearing and second bearing of the thick end of T word shape one end, described clutch shaft bearing is sleeved near thicker end place of described thread spindle and one end to be close on the plane of thread spindle thickness conversion place formation, described second bearing holder (housing, cover) is contained in the thinner end of thread spindle, described coat suit and is connected with thread spindle with second bearing by clutch shaft bearing on the clutch shaft bearing and second bearing.
Above-mentioned bearing centralizer, its described clutch shaft bearing and second bearing are sleeved on described thread spindle two ends by the mode of interference suit.
Above-mentioned bearing centralizer inwardly gives prominence to being provided with and clutch shaft bearing and the corresponding positioning step that is used to locate of the second bearing holder (housing, cover) holding position between the clutch shaft bearing and the second bearing holder (housing, cover) holding position on its described outer casing inner wall.
Above-mentioned bearing centralizer, the inwall of its described thread spindle have and are used for the taper thread that is connected with drilling rod.
Above-mentioned bearing centralizer, it also comprises cap in the lump, described and cap sleeve is loaded on the thinner end of thread spindle and makes an end of second bearing closely be closely attached on positioning step on the outer casing inner wall.
Above-mentioned bearing centralizer, it also comprises an asbestos cord, has an asbestos grooving on the described and cap with on the contact surface of outer casing inner wall, described asbestos cord is arranged in the asbestos grooving.
Because adopt such scheme, drilling rod contacts with the inwall of deep hole by overcoat, to play the fixed support of drilling rod and the effect of guiding, the swing when reducing the drilling rod rotation has improved the straightness accuracy and the degree of skewness in the hole of being bored.
In sum, the utlity model has simple in structurely, long service life does not influence the moment of torsion transmission, connects reliably, reduces the swing of drilling rod, improves advantages such as pore-forming straightness accuracy, applicable and deep hole operation fields such as ore deposit, ground, oil gas well, underground heat.
Description of drawings
Fig. 1 is a bearing centralizer structure schematic diagram.
Fig. 2 is a bearing centralizer radial section schematic diagram.
In the accompanying drawing 1,2,1---overcoat, 2---thread spindle, 3---and cap, 4---clutch shaft bearing, 5---second bearing, 6---asbestos cord.
The specific embodiment
Below in conjunction with accompanying drawing 1,2, describe the specific embodiment of bearing centralizer in detail.
As shown in Figure 1, the utility model comprises that overcoat 1, integral body are the thin thread spindle 2 of the thick end of T word shape one end and cap 3, clutch shaft bearing 4, second bearing 5 and asbestos cord 6, and the inwall of thread spindle 2 has and is used for the taper thread that is connected with drilling rod.Clutch shaft bearing 4 is sleeved near thicker end place of described thread spindle and one end to be close on the plane of thread spindle 2 thicknesses conversion place formation, second bearing 5 is sleeved on thread spindle 2 thinner ends, overcoat 1 is sleeved on the clutch shaft bearing 4 and second bearing 5, and is connected with thread spindle 2 with second bearing 5 by clutch shaft bearing 4.Between clutch shaft bearing 4 and second bearing, 5 cover holding positions, inwardly give prominence on overcoat 1 inwall and be provided with the positioning step that be used to locate corresponding to position and to fix with clutch shaft bearing 4 and second bearing, 5 cover holding positions.The clutch shaft bearing 4 and second bearing 5 are sleeved on described thread spindle 2 two ends by the mode of interference suit.And cap 3 is set in the thinner end of thread spindle 2 and make an end of second bearing 5 closely be closely attached on positioning step on overcoat 1 inwall, so that whole centralizer is fixed.And having an asbestos grooving on the cap 3 with on the contact surface of outer casing inner wall, described asbestos cord is arranged in the asbestos grooving.
Operating principle of the present utility model is as follows:
The internal and external threads of thread spindle 2 is jointed rod respectively, and drilling rod drives thread spindle 2 rotation transfer torques, and thread spindle 2 drives the rolling of bearing 4,5 inner rings and do not make overcoat 1 rotation, and overcoat 1 outer wall is close to the inboard rock of boring, plays the effect of fixed support drilling rod.
Claims (6)
1. bearing centralizer, it is characterized in that, comprise overcoat (1), integral body is the thin thread spindle (2) of the thick end of T word shape one end, clutch shaft bearing (4) and second bearing (5), described clutch shaft bearing (4) is sleeved near thicker end place of described thread spindle and one end to be close on the plane of thread spindle (2) thickness conversion place formation, described second bearing (5) is sleeved on the thinner end of thread spindle (2), described overcoat (1) is sleeved on clutch shaft bearing (4) and second bearing (5), and is connected with thread spindle (2) with second bearing (5) by clutch shaft bearing (4).
2. bearing centralizer according to claim 1 is characterized in that: described clutch shaft bearing (4) and second bearing (5) are sleeved on described thread spindle (2) two ends by the mode of interference suit.
3. according to claim 1 and 2 described bearing centralizers, it is characterized in that: between clutch shaft bearing (4) and second bearing (5) cover holding position, inwardly give prominence to being provided with and clutch shaft bearing (4) and the corresponding positioning step that is used to locate of second bearing (5) cover holding position on described overcoat (1) inwall.
4. bearing centralizer according to claim 1 is characterized in that: the inwall of described thread spindle (2) has and is used for the taper thread that is connected with drilling rod.
5. bearing centralizer according to claim 1 is characterized in that: also comprise cap (3) in the lump, described and cap (3) is set in the thinner end of thread spindle (2) and makes an end of second bearing (5) closely be closely attached on positioning step on overcoat (1) inwall.
6. bearing centralizer according to claim 1 is characterized in that: also comprise an asbestos cord (6), described and cap (3) upward and on the contact surface of outer casing inner wall has an asbestos grooving, and described asbestos cord (6) is arranged in the asbestos grooving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206205835U CN201851038U (en) | 2010-11-18 | 2010-11-18 | Bearing centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206205835U CN201851038U (en) | 2010-11-18 | 2010-11-18 | Bearing centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851038U true CN201851038U (en) | 2011-06-01 |
Family
ID=44093437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206205835U Expired - Lifetime CN201851038U (en) | 2010-11-18 | 2010-11-18 | Bearing centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851038U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615201A (en) * | 2013-11-30 | 2014-03-05 | 重庆九州探矿机械技术开发公司 | Centering device for drill rod in hole of engineering driller |
| CN103993861A (en) * | 2014-05-28 | 2014-08-20 | 大庆华翰邦石油装备制造有限公司 | Device for achieving resistance decrement and centering in peripheral direction |
| CN106593326A (en) * | 2017-01-23 | 2017-04-26 | 北京健安诚岩土工程有限公司 | Rod taking device for broken rod of thread connecting rod piece and construction method thereof |
| CN106759338A (en) * | 2017-01-23 | 2017-05-31 | 北京健安诚岩土工程有限公司 | The disconnected bar drill of threaded connection rod member takes device and its construction method |
-
2010
- 2010-11-18 CN CN2010206205835U patent/CN201851038U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103615201A (en) * | 2013-11-30 | 2014-03-05 | 重庆九州探矿机械技术开发公司 | Centering device for drill rod in hole of engineering driller |
| CN103615201B (en) * | 2013-11-30 | 2015-12-02 | 重庆九州探矿机械技术开发公司 | The centralizer of drilling rod in engineering driller hole |
| CN103993861A (en) * | 2014-05-28 | 2014-08-20 | 大庆华翰邦石油装备制造有限公司 | Device for achieving resistance decrement and centering in peripheral direction |
| CN103993861B (en) * | 2014-05-28 | 2017-05-24 | 大庆华翰邦石油装备制造有限公司 | Device for achieving resistance decrement and centering in peripheral direction |
| CN106593326A (en) * | 2017-01-23 | 2017-04-26 | 北京健安诚岩土工程有限公司 | Rod taking device for broken rod of thread connecting rod piece and construction method thereof |
| CN106759338A (en) * | 2017-01-23 | 2017-05-31 | 北京健安诚岩土工程有限公司 | The disconnected bar drill of threaded connection rod member takes device and its construction method |
| CN106593326B (en) * | 2017-01-23 | 2019-02-19 | 北京健安诚岩土工程有限公司 | It is threadedly coupled the construction method that the disconnected bar of rod piece takes lever apparatus |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110601 |