CN203532514U - TC radial bearing for screw drilling tool - Google Patents
TC radial bearing for screw drilling tool Download PDFInfo
- Publication number
- CN203532514U CN203532514U CN201320752934.1U CN201320752934U CN203532514U CN 203532514 U CN203532514 U CN 203532514U CN 201320752934 U CN201320752934 U CN 201320752934U CN 203532514 U CN203532514 U CN 203532514U
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- CN
- China
- Prior art keywords
- radial bearing
- inner sleeve
- bearing inner
- sleeve
- alloy layer
- 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
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- 238000005553 drilling Methods 0.000 title abstract description 4
- 239000000956 alloy Substances 0.000 claims description 16
- 229910045601 alloy Inorganic materials 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000007751 thermal spraying Methods 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses a TC radial bearing for a screw drilling tool. The bearing comprises an inner radial bearing sleeve, wherein a key groove is formed in the upper part of the inner radial bearing sleeve; the outer side of the lower part of the inner radial bearing sleeve is sleeved with an outer sleeve; a cemented carbide layer and a supersonic speed thermal spraying layer are sequentially arranged between the inner radial bearing sleeve and the outer sleeve on the inner radial bearing sleeve. By adopting the technical scheme, due to the arrangement of the cemented carbide layer and the supersonic speed thermal spraying layer, the inner radial bearing sleeve and the outer sleeve are more wear-resisting, the service life of the radial bearing is prolonged, the abrasion resistance of the radial bearing is improved, great impact resistance and large bearing load are achieved, and meanwhile due to the arrangement of inner threads and the key groove, the bearing is convenient to mount and position.
Description
Technical field
The utility model relates to technical field of petroleum extraction, relates in particular to a kind of helicoid hydraulic motor TC radial bearing.
Background technique
Screw drill is normally comprised of bypass valve, screw motor, universal joint, cod, cemented carbide (TC) radial bearing and live axle, wherein TC radial bearing bears drill bit and cardan shaft and rotates the lateral force producing in helicoid hydraulic motor, there is drilling fluid Cooling and Lubricator, this just requires TC radial bearing is the long-time erosion of wear-resisting resistance to drilling fluid again, so TC radial bearing is the critical component that affects the working life of drill rod boring tool.
Summary of the invention
The technical problems to be solved in the utility model is for the deficiencies in the prior art, provides that a kind of corrosion-resistant, shock resistance, bearing load are large, the helicoid hydraulic motor TC radial bearing of long service life.
For addressing the above problem, the utility model is by the following technical solutions: a kind of helicoid hydraulic motor TC radial bearing, comprise radial bearing inner sleeve, the top of described radial bearing inner sleeve is provided with keyway, the outside of the bottom of described radial bearing inner sleeve is set with overcoat, in described radial bearing inner sleeve, between radial bearing inner sleeve and overcoat, be provided with successively hard alloy layer, supersonic speed thermally sprayed coating, the lower end of described radial bearing inner sleeve is provided with internal thread, the length of described internal thread is 160mm, in described radial bearing, the inner peripheral surface of set upper side is provided with hard alloy layer, on the excircle of described overcoat, be also provided with hard alloy layer.
Below further improvement of the utility model:
The thickness of described hard alloy layer is 2.5mm.
Further improve:
The thickness of described supersonic speed thermally sprayed coating is 1mm.
Further improve:
The position putting in described radial bearing near keyway is provided with annular groove.
The utility model adopts technique scheme, hard alloy layer, supersonic speed thermally sprayed coating be arranged so that radial bearing inner sleeve and overcoat more wear-resisting, improved the working life of radial bearing, improved the corrosion resistance of radial bearing simultaneously, anti-impact force and bearing load are large; The setting of internal thread and keyway is convenient to install location.
Below in conjunction with accompanying drawing the technical solution of the utility model, be described further.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In figure: 1-radial bearing inner sleeve; 2-hard alloy layer; 3-supersonic speed thermally sprayed coating; 4-overcoat; 5-annular groove; 7-keyway.
Embodiment
Embodiment, as shown in Figure 1, a kind of helicoid hydraulic motor TC radial bearing, comprise radial bearing inner sleeve 1, the top of described radial bearing inner sleeve 1 is provided with keyway 7, the outside of the bottom of described radial bearing inner sleeve 1 is set with overcoat 4, in described radial bearing inner sleeve 1, between radial bearing inner sleeve 1 and overcoat 4, be provided with successively hard alloy layer 2, supersonic speed thermally sprayed coating 3, the lower end of described radial bearing inner sleeve 1 is provided with internal thread, the length of described internal thread is 160mm, the inner peripheral surface of described radial bearing inner sleeve 1 upper end is provided with hard alloy layer 2, the setting of internal thread and keyway 7 is convenient to install location, on the excircle of described overcoat 4, be also provided with hard alloy layer 2.
The thickness of described hard alloy layer 2 is 2.5mm, and the material that described hard alloy layer 2 is selected is cemented carbide.
The thickness of described supersonic speed thermally sprayed coating 3 is 1mm, and the material that described supersonic speed thermally sprayed coating 3 is selected can be pottery or alloy.
Position near keyway 7 in described radial bearing inner sleeve 1 is provided with annular groove 5, and annular groove 5 is convenient to install location.
Claims (4)
1. a helicoid hydraulic motor TC radial bearing, it is characterized in that: comprise radial bearing inner sleeve (1), the top of described radial bearing inner sleeve (1) is provided with keyway (7), the outside of the bottom of described radial bearing inner sleeve (1) is set with overcoat (4), in described radial bearing inner sleeve (1), be positioned between radial bearing inner sleeve (1) and overcoat (4) and be provided with successively hard alloy layer (2), supersonic speed thermally sprayed coating (3), the lower end of described radial bearing inner sleeve (1) is provided with internal thread, the length of described internal thread is 160mm, the inner peripheral surface of described radial bearing inner sleeve (1) upper end is provided with hard alloy layer (2), on the excircle of described overcoat (4), be also provided with hard alloy layer (2).
2. a kind of helicoid hydraulic motor TC radial bearing according to claim 1, is characterized in that: the thickness of described hard alloy layer (2) is 2.5mm.
3. a kind of helicoid hydraulic motor TC radial bearing according to claim 2, is characterized in that: the thickness of described supersonic speed thermally sprayed coating (3) is 1mm.
4. a kind of helicoid hydraulic motor TC radial bearing according to claim 3, is characterized in that: the upper position near keyway (7) of described radial bearing inner sleeve (1) is provided with annular groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320752934.1U CN203532514U (en) | 2013-11-26 | 2013-11-26 | TC radial bearing for screw drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320752934.1U CN203532514U (en) | 2013-11-26 | 2013-11-26 | TC radial bearing for screw drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532514U true CN203532514U (en) | 2014-04-09 |
Family
ID=50418726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320752934.1U Expired - Fee Related CN203532514U (en) | 2013-11-26 | 2013-11-26 | TC radial bearing for screw drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532514U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859688A (en) * | 2017-12-04 | 2018-03-30 | 潍坊市宇宏石油机械有限公司 | A kind of screw rod drilling tool journal bearing and its production technology |
| CN110985536A (en) * | 2020-01-10 | 2020-04-10 | 济源华新石油机械有限公司 | Two-direction axial force-bearing radial-righting PDC-TC bearing |
-
2013
- 2013-11-26 CN CN201320752934.1U patent/CN203532514U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107859688A (en) * | 2017-12-04 | 2018-03-30 | 潍坊市宇宏石油机械有限公司 | A kind of screw rod drilling tool journal bearing and its production technology |
| CN107859688B (en) * | 2017-12-04 | 2023-08-25 | 潍坊市宇宏石油机械有限公司 | Novel radial bearing for screw drilling tool and production process thereof |
| CN110985536A (en) * | 2020-01-10 | 2020-04-10 | 济源华新石油机械有限公司 | Two-direction axial force-bearing radial-righting PDC-TC bearing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 262100 Xingan Industrial Park, Anqiu, Shandong, No. 9, No. Patentee after: WEIFANG YUHONG PETROLEUM MACHINERY Co.,Ltd. Address before: 262100 Xingan Industrial Park, Anqiu, Shandong, No. 9, No. Patentee before: WEIFANG YUHONG PETROLEUM MACHINERY Co.,Ltd. |
|
| CU01 | Correction of utility model |
Correction item: Patentee Correct: Weifang Yuhong Petroleum Machinery Co., Ltd. False: WEIFANG YUHONG PETROLEUM MACHINERY CO., LTD. Number: 15 Page: The title page Volume: 30 |
|
| CU03 | Publication of corrected utility model |
Correction item: Patentee Correct: Weifang Yuhong Petroleum Machinery Co., Ltd. False: WEIFANG YUHONG PETROLEUM MACHINERY CO., LTD. Number: 15 Volume: 30 |
|
| ERR | Gazette correction | ||
| RECT | Rectification | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20201126 |