CN206329272U - A kind of screw drill transmission shaft assembly - Google Patents
A kind of screw drill transmission shaft assembly Download PDFInfo
- Publication number
- CN206329272U CN206329272U CN201621200454.4U CN201621200454U CN206329272U CN 206329272 U CN206329272 U CN 206329272U CN 201621200454 U CN201621200454 U CN 201621200454U CN 206329272 U CN206329272 U CN 206329272U
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- CN
- China
- Prior art keywords
- transmission shaft
- plain thrust
- thrust bearing
- bearing
- power transmission
- 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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Abstract
The utility model is a kind of screw drill transmission shaft assembly, including power transmission shaft and housing, equipped with two sets of plain thrust bearings between power transmission shaft and housing, two sets of plain thrust bearing outer shroud anchor rings are affixed, middle spacer is provided between the inner ring of two sets of plain thrust bearings, Jing Quan and lower moving-coil under lower spacer, pressure-bearing set, semi-ring are housed in the lower section of plain thrust bearing, lower Jing Quan is connected with housing；The top of plain thrust bearing equipped with upper spacer, on Jing Quan and upper moving-coil, wherein upper moving-coil is connected with power transmission shaft.The utility model provides a kind of simple in construction, safe and reliable, bearing-transmission axle assembly of the helicoid hydraulic motor of long service life.
Description
Technical field
The utility model belongs to helicoid hydraulic motor technical field, is related to a kind of driving-shaft assembly of helicoid hydraulic motor, more particularly to
A kind of plain thrust bearing driving-shaft assembly of helicoid hydraulic motor.
Background technology
Helicoid hydraulic motor is a kind of hydraulic machine, is a kind of energy converting means for the pressure energy of liquid being converted to mechanical energy
Put, also referred to as positive displacement motor (PDM), the characteristic with low-speed big, be the down-hole equipment commonly used in current drilling engineering
One of, it is also a kind of most widely used mud motor.
Oil drilling or the helicoid hydraulic motor of well workover, by by-pass valve assembly, motor assembly, universal axle assembly and power transmission shaft
Assembly is constituted, and driving-shaft assembly therein mainly includes water cap, power transmission shaft, transmission shaft shell, upper lower radial bearing, thrust bearing
Deng part.The mechanical structure of existing power transmission shaft, in the elongated axle construction of shoulder more than one.The stressing conditions of power transmission shaft are complicated, mainly
Dynamic moment of torsion, side force, axial force etc..
The driving-shaft assembly now used is using angular contact thrust bearing group as thrust bearing.And angular contact thrust ball bearing
Group belongs to a kind of ball bearing, is a contact between steel ball and raceway, weares and teares violent under conditions of lubricating condition is bad, uses the longevity
Life is significantly lower than upper lower radial bearing, therefore the whole service life of helicoid hydraulic motor is limited by this bottleneck all the time.
The content of the invention
The purpose of this utility model is to provide a kind of simple in construction, safe and reliable, the helicoid hydraulic motor of long service life
Bearing-transmission axle assembly, to overcome defect present in prior art.The purpose of this utility model is by the following technical programs
Realize.
A kind of screw drill transmission shaft assembly, including power transmission shaft and housing, put down between power transmission shaft and housing equipped with two sets
Face thrust bearing, two sets of plain thrust bearing outer shroud anchor rings are affixed, in being provided between the inner ring of two sets of plain thrust bearings every
Set, Jing Quan and lower moving-coil, the lower Jing Quan and housing under lower spacer, pressure-bearing set, semi-ring are equipped with the lower section of plain thrust bearing
It is connected；The top of plain thrust bearing equipped with upper spacer, on Jing Quan and upper moving-coil, wherein upper moving-coil is connected with power transmission shaft.
Further, the wear-resistant surface of the plain thrust bearing is polycrystalline diamond.
Further, the semi-ring, pressure-bearing set are enclosed within power transmission shaft, and the lower spacer is arranged on semi-ring, pressure-bearing set and put down
On the outside of face thrust bearing inner ring, be stuck in plain thrust bearing outer shroud and under between quiet circle；The upper spacer is arranged on plane thrust
On the outside of bearing inner ring, it is stuck between Jing Quan and plain thrust bearing outer shroud.
Further, it is threadedly coupled between the lower Jing Quan and housing.
Further, it is threadedly coupled between the upper moving-coil and power transmission shaft.
The beneficial effects of the utility model are：
1）The utility model uses plain thrust bearing, angular contact ball bearing compared with prior art, and height contact is face
Contact, effectively reduces friction, extends service life；
2）The utility model is simple in construction, and processing and fabricating is convenient, it is easy to repair；
3）Polycrystalline diamond（PDC）Plain thrust bearing more resistant to abrasion, so as to solve the problem of drill tool life is short,
And then extend the service life of drilling tool；
4）PDC plain thrust bearings are smaller, help to realize the helicoid hydraulic motor of short curved point.
Below in conjunction with the accompanying drawings and embodiment is described in further detail to the utility model.
Brief description of the drawings
Fig. 1 is the utility model screw drill transmission shaft assembly structure schematic diagram.
Embodiment
As shown in figure 1, a kind of screw drill transmission shaft assembly, including power transmission shaft and housing, power transmission shaft 1 and housing 5 it
Between be affixed equipped with two sets of plain thrust bearings 9, two sets of outer shroud anchor rings of plain thrust bearing 9, two sets of plain thrust bearings 9 it is interior
Between ring be provided with middle spacer 10, the lower section of plain thrust bearing 9 equipped with lower spacer 4, pressure-bearing set 11, semi-ring 12, under 3 and of quiet circle
Lower moving-coil 2, it is described under quiet circle 3 be connected with housing 5；The top of plain thrust bearing 9 equipped with upper spacer 8, on quiet circle 7 and upper dynamic
Circle 6, wherein upper moving-coil 6 is connected with power transmission shaft 1.
The wear-resistant surface of the plain thrust bearing 9 is preferably polycrystalline diamond.The semi-ring 12, pressure-bearing set 11 are enclosed within transmission
On axle 5, the lower spacer 4 is arranged on the outside of semi-ring 12, pressure-bearing set 11 and the inner ring of plain thrust bearing 9, is stuck in plane thrust axis
Hold 9 outer shrouds and under it is quiet circle 3 between；The upper spacer 8 is arranged on the outside of the inner ring of plain thrust bearing 9, is stuck in quiet circle 7 and plane
Between the outer shroud of thrust bearing 9.It is threadedly coupled under described between quiet circle 3 and housing 5.Screw thread between the upper moving-coil 6 and power transmission shaft 1
Connection.
Angular contact bearing is used in the prior art, i.e., a kind of ball bearing, the bearing is a kind of bearing of radial force, and this
Utility model uses plain thrust bearing, the bearing axially loaded, by the Jing Quan of plain thrust bearing both up and down, spacer,
The structures such as semi-ring are fixed.
In the present embodiment：Equipped with two sets of plain thrust bearings between power transmission shaft and housing, plain thrust bearing outer shroud circle
Anchor ring is affixed, and has middle spacer to separate in the middle of plain thrust bearing, lower spacer, pressure-bearing are sequentially arranged with one end of plain thrust bearing
Set, semi-ring, lower Jing Quan and lower moving-coil, wherein lower Jing Quan is connected with housing, the other end of plain thrust bearing be equipped with upper spacer,
Upper Jing Quan and upper moving-coil, wherein upper moving-coil is connected with power transmission shaft.Lower used between Jing Quan and housing is threadedly coupled.Upper moving-coil is with passing
Using threaded connection between moving axis.The resistance to flat surface grinding of plain thrust bearing uses PDC.Bearing is used as bearing using PDC materials
Working face, is a kind of face contact, even if there is a small amount of abrasion, can continue to use, service life extends more than 3 times.And then
Greatly improve the service life of screw drill transmission shaft assembly.
Claims (5)
1. a kind of screw drill transmission shaft assembly, including power transmission shaft and housing, it is characterised in that：In power transmission shaft（1）With housing（5）
Between equipped with two sets of plain thrust bearings（9）, two sets of plain thrust bearings（9）Outer shroud anchor ring is affixed, two sets of plane thrust axis
Hold（9）Inner ring between be provided with middle spacer（10）, in plain thrust bearing（9）Lower section be equipped with lower spacer（4）, pressure-bearing set
（11）, semi-ring（12）, lower Jing Quan（3）With lower moving-coil（2）, the lower Jing Quan（3）With housing（5）It is connected；In plain thrust bearing
（9）Top be equipped with upper spacer（8）, upper Jing Quan（7）With upper moving-coil（6）, wherein upper moving-coil（6）With power transmission shaft（1）Connection.
2. screw drill transmission shaft assembly according to claim 1, it is characterised in that：The plain thrust bearing（9）'s
Wear-resistant surface is polycrystalline diamond.
3. screw drill transmission shaft assembly according to claim 1, it is characterised in that：The semi-ring（12）, pressure-bearing set
（11）It is enclosed within power transmission shaft（1）On, the lower spacer（4）It is arranged on semi-ring（12）, pressure-bearing set（11）And plain thrust bearing（9）It is interior
On the outside of ring, it is stuck in plain thrust bearing（9）Outer shroud and lower Jing Quan（3）Between；The upper spacer（8）It is arranged on plain thrust bearing
（9）On the outside of inner ring, it is stuck in Jing Quan（7）And plain thrust bearing（9）Between outer shroud.
4. screw drill transmission shaft assembly according to claim 1, it is characterised in that：The lower Jing Quan（3）With housing（5）
Between be threadedly coupled.
5. screw drill transmission shaft assembly according to claim 1, it is characterised in that：The upper moving-coil（6）With power transmission shaft
（1）Between be threadedly coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621200454.4U CN206329272U (en) | 2016-11-08 | 2016-11-08 | A kind of screw drill transmission shaft assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621200454.4U CN206329272U (en) | 2016-11-08 | 2016-11-08 | A kind of screw drill transmission shaft assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206329272U true CN206329272U (en) | 2017-07-14 |
Family
ID=59287447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621200454.4U Expired - Fee Related CN206329272U (en) | 2016-11-08 | 2016-11-08 | A kind of screw drill transmission shaft assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206329272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112556A (en) * | 2020-11-20 | 2020-12-22 | 东营市正能石油科技有限公司 | Screw drill for oil field drilling operation |
| CN112112023A (en) * | 2020-09-29 | 2020-12-22 | 孙太祥 | Coaxial bidirectional drill bit of stable roadbed mixing pile machine |
-
2016
- 2016-11-08 CN CN201621200454.4U patent/CN206329272U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112023A (en) * | 2020-09-29 | 2020-12-22 | 孙太祥 | Coaxial bidirectional drill bit of stable roadbed mixing pile machine |
| CN112112023B (en) * | 2020-09-29 | 2021-08-13 | 孙太祥 | Coaxial bidirectional drill bit of stable roadbed mixing pile machine |
| CN112112556A (en) * | 2020-11-20 | 2020-12-22 | 东营市正能石油科技有限公司 | Screw drill for oil field drilling operation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170714 Termination date: 20201108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |