CN201461727U - Polycrystalline diamond sliding thrust bearing assembly - Google Patents
Polycrystalline diamond sliding thrust bearing assembly Download PDFInfo
- Publication number
- CN201461727U CN201461727U CN2009201092804U CN200920109280U CN201461727U CN 201461727 U CN201461727 U CN 201461727U CN 2009201092804 U CN2009201092804 U CN 2009201092804U CN 200920109280 U CN200920109280 U CN 200920109280U CN 201461727 U CN201461727 U CN 201461727U
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- dimond synneusis
- sliding
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- thrust bearing
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Abstract
A polycrystalline diamond sliding thrust bearing assembly is formed by a plurality of groups of polycrystalline diamond sliding thrust bearings which are axially arranged side by side, wherein each polycrystalline diamond sliding thrust bearing comprises a movable bearing collar and a fixed bearing collar; shock absorbers are mounted between the polycrystalline diamond sliding thrust bearings in each group, and each shock absorber comprises a shock-absorbing sleeve, a sliding key sleeve and a shock-absorbing spring; inner spacer sleeves are mounted between the movable bearing collars of each group of polycrystalline diamond sliding thrust bearings, so that the movable bearing collars can be tightly pressed and fixed on a drive shaft during assembly; each fixed bearing collar is arranged opposite to the corresponding movable bearing collar, connected with the corresponding sliding key sleeve in a sliding key manner, and propped against the shock-absorbing spring in the corresponding shock-absorbing sleeve; and an outer spacer sleeve is arranged between every two shock absorbers, so that the shock absorbers can be tightly pressed and fixed in an outer shell of the drive shaft during assembly. The multiple groups of polycrystalline diamond sliding thrust bearings are arranged in the utility model, and the shock absorbers are mounted between the polycrystalline diamond sliding thrust bearings in each group, thereby greatly improving the loading capacity and service life of the bearing assembly.
Description
Technical field
The utility model relates to the cod of using on a kind of mud motor bearing joint.
Background technique
At present, helicoid hydraulic motor is widely used in oil drilling and well workover, and wherein, driving-shaft assembly is the main constituent elements of helicoid hydraulic motor, also is minimum assembly of helicoid hydraulic motor life-span.Existing driving-shaft assembly mainly adopts the ball string bearing as thrust bearing, and under the drilling condition condition, the life-span of ball bearing is too low, has had a strong impact on the life-span of helicoid hydraulic motor complete machine.
The Application and Development of diamond sliding thrust bearing can make the life-span of driving-shaft assembly improve greatly, and the friction member of existing diamond thrust bearing adopts diamond compact basically, and its difficulty of processing is very big, and manufacture cost is very high.In addition, because diamond is very crisp, can not bear bigger impulsive load, the vibration damper performance can directly influence the using effect of diamond thrust bearing.
The model utility content
For solve the problem that drive assembly runs in the prior art in the manufacturing operation process, the utility model provides a kind of life-span length, low cost of manufacture, has the dimond synneusis sliding thrust bearing group of good damping performance.
For achieving the above object, technical solution of the present utility model is:
A kind of dimond synneusis sliding thrust bearing group is made up of the many groups of dimond synneusis sliding thrust bearings that axially are arranged side by side; The dimond synneusis sliding thrust bearing comprises bearing moving-coil and bearing Jing Quan; Be provided with vibration damper between every group of dimond synneusis sliding thrust bearing, vibration damper comprises shock absorbing sleeve, sliding key sleeve and damping spring; Be provided with inner spacing collar between the bearing moving-coil of described every group of dimond synneusis sliding thrust bearing, when being used to assemble the bearing moving-coil compressed and be fixed on transmission shaft; Be relatively set with bearing Jing Quan with described bearing moving-coil, bearing Jing Quan is connected with sliding key sleeve in the feather key mode and leans on the damping spring in shock absorbing sleeve; Be provided with outer separator between described each vibration damper, when being used for the bearing pack assembling vibration damper compressed and is fixed in the transmission shaft frame.
Further, the friction member of described bearing moving-coil and bearing Jing Quan is selected dimond synneusis for use, adopts the pressureless impregnation sintering method that dimond synneusis is fixed in the bearing support surface, and its sintered skeleton material is a cast tungsten carbide, and welding consumables is the Manic scolder.
Further, the rubbing surface of described bearing moving-coil and bearing Jing Quan is provided with cooling water channel, and cooling water channel is the groove shape, or with dimond synneusis exposure pivot friction face 1-3 millimeter, with the gap between the dimond synneusis as cooling water channel.
Further, the bearing Jing Quan of described dimond synneusis sliding thrust bearing is connected in the feather key mode with sliding key sleeve, and leans on damping spring; Bearing Jing Quan can move in shock absorbing sleeve vertically, and allows to swing by a small margin.
Further, described dimond synneusis sliding stop thrust bearing group, its thrust bearing group number is the 2-6 group, wherein has one group oppositely to be provided with.
Further, the described inner spacing collar outside and outer separator inboard are provided with cooling water channel, water channel gap 1-4 millimeter.
Further, described damping spring is rubber spring, disk spring or combination disk spring.
Description of drawings
Fig. 1 is the dimond synneusis sliding thrust bearing group schematic representation of rubber shock-absorbing among the embodiment 1.
Fig. 2 is the dimond synneusis sliding thrust bearing group schematic representation of dish spring damping among the embodiment 2.
Fig. 3 a is the quiet coil structures schematic representation of the bearing of dimond synneusis sliding thrust bearing.
Fig. 3 b is the quiet coil structures schematic representation of the bearing of dimond synneusis sliding thrust bearing.
Fig. 4 is the sliding key sleeve schematic representation.
Embodiment
As shown in Figure 1, the utility model dimond synneusis sliding thrust bearing group is made up of the many groups of dimond synneusis sliding thrust bearings that axially are arranged side by side, and the dimond synneusis sliding thrust bearing comprises bearing moving-coil 1 and the quiet circle 2 of bearing; Be provided with vibration damper 3 between every group of thrust bearing, vibration damper 3 comprises shock absorbing sleeve 31, sliding key sleeve 32 and damping spring 33; Be provided with outer separator 4 between each vibration damper 3, when being used for the bearing pack assembling vibration damper 3 compressed and is fixed in the transmission shaft frame; Be provided with inner spacing collar 5 between the bearing moving-coil 1 of every group of dimond synneusis sliding thrust bearing, when being used to assemble bearing moving-coil 1 compressed and be fixed in transmission shaft; Be relatively set with the quiet circle 2 of bearing with described bearing moving-coil 1, the quiet circle 2 of bearing is connected with sliding key sleeve 32 in the feather key mode and leans on the damping spring 33 in shock absorbing sleeve 31; The quiet circle 2 of bearing can move in shock absorbing sleeve 31 vertically, and by a small margin the swing, but not can and shock absorbing sleeve 31 between relatively rotate.After the assembling of dimond synneusis sliding thrust bearing is joined, the decrement of damping spring 33 is the 0.5-2 millimeter, its objective is that the distance that the rubbing surface that guarantees bearing moving-coil 1 and the quiet circle 2 of bearing contacts fully all the time or leave mutually is very little, eliminating or to alleviate impulsive load between the pivot friction face, and prevent the eccentric wear phenomenon.The thrust bearing group number of dimond synneusis sliding thrust bearing group is the 2-6 group, and wherein one group is oppositely to install, and the concrete quantity of bearing pack can be determined according to actual conditions.Damping spring in the vibration damper can adopt rubber spring, and it is the 75-90 antiseptic rubber that damping spring 33 is selected hardness for use; Radial clearance between damping spring 33 and the shock absorbing sleeve 31 is the 0.5-2 millimeter, so that provide the radial deformation space for it when damping spring 33 pressurizeds.
Fig. 1 only is a kind of structure of dimond synneusis sliding thrust bearing group, can also select other structural type, as shock absorbing sleeve 31 and sliding key sleeve 32 are made of one, or save sliding key sleeve 32 and in the punching of the relevant position of shock absorbing sleeve 31 and install pin etc. additional, its purpose realizes not producing relative rotation between shock absorbing sleeve 31 and the quiet circle 2 of bearing exactly, but allows axially relatively moving.
Fig. 2 is an another kind of structural representation of the present utility model, and the damping spring of this structure is the dish spring.The difference of this structure and structure shown in Figure 1 is the shock absorbing sleeve 31 inboard Open architecture that adopt among Fig. 2, has enlarged the installing space of damping spring 33, and other and Fig. 1 structure are basic identical.In addition, disk spring 33 can adopt combined type dish spring, to strengthen the damping performance of damping spring 33.
Fig. 3 a, 3b are the structural representations of the quiet circle 2 of bearing, and it is made up of dimond synneusis 22, sintering carcass 23, bearing body 21 and cooling water channel 24.Its manufacturing process is the pressureless impregnation sintering method, and sintering carcass 23 is formed by cast tungsten carbide+scolder sintering, the optional Manic of scolder.The shape of dimond synneusis 22 can be circle or polygonal.Cooling water channel 24 also can be selected other form, exceeds sintering carcass 23 end face 1-3 millimeters etc. as the rubbing surface of dimond synneusis 22.
Fig. 4 is a kind of structural representation of sliding key sleeve 32.
Claims (7)
1. a dimond synneusis sliding thrust bearing group is characterized in that, is made up of the many groups of dimond synneusis sliding thrust bearings that axially are arranged side by side; The dimond synneusis sliding thrust bearing comprises bearing moving-coil and bearing Jing Quan; Be provided with vibration damper between every group of dimond synneusis sliding thrust bearing, vibration damper comprises shock absorbing sleeve, sliding key sleeve and damping spring; Be provided with inner spacing collar between the bearing moving-coil of described every group of dimond synneusis sliding thrust bearing, when being used to assemble the bearing moving-coil compressed and be fixed on transmission shaft; Be relatively set with bearing Jing Quan with described bearing moving-coil, bearing Jing Quan is connected with sliding key sleeve in the feather key mode and leans on the damping spring in shock absorbing sleeve; Be provided with outer separator between described each vibration damper, when being used for the bearing pack assembling vibration damper compressed and is fixed in the transmission shaft frame.
2. dimond synneusis sliding thrust bearing group as claimed in claim 1, it is characterized in that, the friction member of described bearing moving-coil and bearing Jing Quan is selected dimond synneusis for use, adopt the pressureless impregnation sintering method that dimond synneusis is fixed in the bearing support surface, its sintered skeleton material is a cast tungsten carbide, and welding consumables is the Manic scolder.
3. dimond synneusis sliding thrust bearing group as claimed in claim 1, it is characterized in that, the rubbing surface of described bearing moving-coil and bearing Jing Quan is provided with cooling water channel, cooling water channel is the groove shape, or with dimond synneusis exposure pivot friction face 1-3 millimeter, with the gap between the dimond synneusis as cooling water channel.
4. dimond synneusis sliding thrust bearing group as claimed in claim 1 is characterized in that the bearing Jing Quan of described dimond synneusis sliding thrust bearing is connected in the feather key mode with sliding key sleeve, and leans on damping spring; Bearing Jing Quan can move in shock absorbing sleeve vertically, and can swing by a small margin.
5. dimond synneusis sliding thrust bearing group as claimed in claim 1 is characterized in that, described dimond synneusis sliding stop thrust bearing group, and its thrust bearing group number is the 2-6 group, wherein has one group oppositely to be provided with.
6. dimond synneusis sliding thrust bearing group as claimed in claim 1 is characterized in that, the described inner spacing collar outside and outer separator inboard are provided with cooling water channel, water channel gap 1-4 millimeter.
7. dimond synneusis sliding thrust bearing group as claimed in claim 1 is characterized in that, described damping spring is rubber spring, disk spring or combination disk spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201092804U CN201461727U (en) | 2009-06-18 | 2009-06-18 | Polycrystalline diamond sliding thrust bearing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201092804U CN201461727U (en) | 2009-06-18 | 2009-06-18 | Polycrystalline diamond sliding thrust bearing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201461727U true CN201461727U (en) | 2010-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201092804U Expired - Fee Related CN201461727U (en) | 2009-06-18 | 2009-06-18 | Polycrystalline diamond sliding thrust bearing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201461727U (en) |
Cited By (6)
| 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 |
| CN104675324A (en) * | 2015-03-04 | 2015-06-03 | 中国海洋石油总公司 | PDM (positive displacement motor) drilling tool for well drilling |
| CN104696354A (en) * | 2015-03-04 | 2015-06-10 | 中国海洋石油总公司 | Integral floating type thrust bearing |
| CN110388380A (en) * | 2019-08-26 | 2019-10-29 | 李堃尧 | A kind of compound thrust bearing of adaptive skid of turbodrill |
| CN112879422A (en) * | 2021-02-04 | 2021-06-01 | 中国地质科学院勘探技术研究所 | Novel combined thrust bearing group for downhole motor |
| CN112879419A (en) * | 2021-02-04 | 2021-06-01 | 中国地质科学院勘探技术研究所 | PDC thrust bearing group is adjusted to motor foam metal in pit |
-
2009
- 2009-06-18 CN CN2009201092804U patent/CN201461727U/en not_active Expired - Fee Related
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 |
| CN102268961B (en) * | 2011-08-01 | 2013-08-14 | 西南石油大学 | Screw drill transmission shaft assembly with vibration reduction function |
| CN104675324A (en) * | 2015-03-04 | 2015-06-03 | 中国海洋石油总公司 | PDM (positive displacement motor) drilling tool for well drilling |
| CN104696354A (en) * | 2015-03-04 | 2015-06-10 | 中国海洋石油总公司 | Integral floating type thrust bearing |
| CN110388380A (en) * | 2019-08-26 | 2019-10-29 | 李堃尧 | A kind of compound thrust bearing of adaptive skid of turbodrill |
| CN112879422A (en) * | 2021-02-04 | 2021-06-01 | 中国地质科学院勘探技术研究所 | Novel combined thrust bearing group for downhole motor |
| CN112879419A (en) * | 2021-02-04 | 2021-06-01 | 中国地质科学院勘探技术研究所 | PDC thrust bearing group is adjusted to motor foam metal in pit |
| CN112879419B (en) * | 2021-02-04 | 2022-07-01 | 中国地质科学院勘探技术研究所 | Foam metal-regulated PDC thrust bearing set of downhole motor |
| CN112879422B (en) * | 2021-02-04 | 2022-07-01 | 中国地质科学院勘探技术研究所 | Novel combined thrust bearing group for downhole motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120618 |