CN206972226U - A kind of high intensity rotating short-knot - Google Patents
A kind of high intensity rotating short-knot Download PDFInfo
- Publication number
- CN206972226U CN206972226U CN201720874312.4U CN201720874312U CN206972226U CN 206972226 U CN206972226 U CN 206972226U CN 201720874312 U CN201720874312 U CN 201720874312U CN 206972226 U CN206972226 U CN 206972226U
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- CN
- China
- Prior art keywords
- transmission shaft
- power transmission
- support base
- center tap
- leather bag
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Abstract
It the utility model is related to a kind of high intensity rotating short-knot, including the top connection sequentially coaxially connected, support base, center tap and shell, power transmission shaft is co-axially mounted in top connection and support base, the left end of power transmission shaft is co-axially inserted in top connection and fixed with top connection, the right-hand member of power transmission shaft is co-axially inserted in support base, the right-hand member of the power transmission shaft makes step, two thrust ball bearings are symmetrically set with the both sides of step, connected between support base and top connection by isolating pad, the both ends of the center tap are inserted in support base and shell and respectively with supportting seat respectively, shell is fixed, docked with power transmission shaft and leave gap in one end of center tap, the other end connection leather bag of center tap, punching has oil in leather bag, leather bag one end is fixed on center tap, oil filler point is formed with leather bag termination.The utility model overcomes influence of the huge well liquid pressure to axle, make rotating short-knot under deep water level still can normal rotation discharge rotary torsion, the transmission shaft diameter for bearing pulling force is reached maximum.
Description
Technical field
The utility model belongs to oil well logging field, is related to rotating short-knot, especially a kind of high intensity rotating short-knot.
Background technology
Logger can be raised and decentralized constantly in underground work, in this process can moment and wall friction touch
Hit so that logger rotates and rocked；In addition, the gravity of logger in itself is also resulted in and constantly revolved in its decentralization process
Turn and rock.Rotating short-knot can partly be laid down instrument string rotation and logging cable produced when downhole instrument string rotates
Torsion, produced when instrument string is rotated and acceptable scope be limited in the torsion of cable, and then protect well logging electricity
Cable, improve the reliability of well logging.
Existing rotating short-knot is limited by internal structure, and axle is done all thinner, causes the low intensity of axle, in heavy load
In the case of easily twist off.
Utility model content
The purpose of this utility model is in place of overcome the deficiencies in the prior art, there is provided a kind of to be remained at profound well depth
Ensure the high intensity rotating short-knot of rotating short-knot normal rotation.
Technical scheme is used by the utility model solves technical problem：
A kind of high intensity rotating short-knot, including top connection, support base, center tap and the shell sequentially coaxially connected, upper
Joint is with being co-axially mounted power transmission shaft in support base, the left end of power transmission shaft is co-axially inserted in top connection to be fixed with top connection, power transmission shaft
Right-hand member be co-axially inserted in support base, the right-hand member of the power transmission shaft makes step, the both sides of step symmetrically suit two thrust balls
Bearing, connected between support base and top connection by isolating pad, the both ends of the center tap are inserted in support base and shell respectively
And fixed respectively with support seat, shell, one end of center tap is docked with power transmission shaft and leaves gap, the other end connection skin of center tap
Capsule, being rushed in leather bag has oil, and leather bag one end is fixed on center tap, and an oil-through hole is coaxially formed with center tap, the oil-through hole
Power transmission shaft is led to, leather bag is coaxially mounted in shell, and the other end of leather bag is fixed on leather bag termination, is formed with leather bag termination
Oil filler point, oil filler point are sealed by plug, and through hole is formed with the ring wall of shell.
Moreover, copper backing is installed at the middle part of isolating pad.
Moreover, the outer wall in support base is formed with oil filler point, the oil filler point leads to power transmission shaft, and oil filler point passes through O-ring seal
And plug sealing.
Moreover, it is set with sealing ring on power transmission shaft in support base.
Moreover, end suit sealing ring of the center tap in support base.
The advantages of the utility model and good effect are：
1st, this rotating short-knot make it that the pressure of outside well liquid is equal with the pressure of hydraulic oil in closed chamber, and hydraulic oil is to axle
Downward pressure axle is upwarded pressure with well liquid it is almost equal so that axle acts on the axial force of lower thrust-bearing only
For the gravity of instrument, influence of the huge well liquid pressure to axle is overcome, makes rotating short-knot still can normal rotation under deep water level
To discharge rotary torsion.
2nd, this rotating short-knot makes the power transmission shaft for bearing pulling force straight with existing rotating short-knot in the case of identical diameter
Footpath reaches maximum, and intensity is big, and use is safer, more reliable.
Brief description of the drawings
Fig. 1 is section of structure of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by specific embodiment, and following examples are simply retouched
The property stated, be not limited, it is impossible to limit the scope of protection of the utility model with this.
A kind of high intensity rotating short-knot, including top connection 1, support base 11, center tap 12 and the shell sequentially coaxially connected
14, power transmission shaft 4 is co-axially mounted in top connection and support base, the left end of power transmission shaft is co-axially inserted in top connection to be passed through with top connection
Stop pin 2 and screw 3 are fixed, and the right-hand member of power transmission shaft is co-axially inserted in support base, and the right-hand member of the power transmission shaft makes step 10,
The both sides of step are symmetrically set with two thrust ball bearings 9, are connected between support base and top connection by isolating pad 5, in isolating pad
Middle part is installed by copper backing 6.Oil filler point 8 is formed with the outer wall of support base, the oil filler point leads to power transmission shaft, and oil filler point passes through O-shaped close
Seal and plug sealing.
The both ends of the center tap are inserted in support base and shell and respectively by stop pin and screw and support seats, outer respectively
Shell is fixed, and one end of center tap is docked with power transmission shaft and leaves gap, the other end connection leather bag 16 of center tap, is rushed in leather bag
There is oil, leather bag one end is fixed on center tap by copper wire 15, and an oil-through hole 13 is coaxially formed with center tap, and the oil-through hole leads to
To power transmission shaft, leather bag is coaxially mounted in shell, and the other end of leather bag is fixed on leather bag termination 18 by copper wire, at leather bag end
Oil filler point is formed with head, oil filler point is sealed by O-ring seal 20 and plug 19.Through hole 17 is formed with the ring wall of shell, is spilt
Leather bag.
Moreover, it is set with sealing ring 7 on power transmission shaft in support base.End suit sealing of the center tap in support base
Circle.
Utility model works principle is：When well presses through it is big when, oppress leather bag, leather bag deformation, the oil in leather bag passes through zero
Aperture and power transmission shaft, bearing peripheral clearance among part center tap communicate, and instrument internal is balanced with external pressure, therefore will not
Drive axis is hindered, makes rotating short-knot still can normal work under deep-well.
Above-described is only preferred embodiment of the present utility model, it is noted that for the ordinary skill of this area
For personnel, on the premise of utility model design is not departed from, various modifications and improvements can be made, these belong to this reality
With new protection domain.
Claims (5)
- A kind of 1. high intensity rotating short-knot, it is characterised in that：Including sequentially coaxially connect top connection, support base, center tap and Shell, power transmission shaft is co-axially mounted in top connection and support base, the left end of power transmission shaft is co-axially inserted in top connection to be consolidated with top connection Fixed, the right-hand member of power transmission shaft is co-axially inserted in support base, and the right-hand member of the power transmission shaft makes step, is symmetrically set with the both sides of step Two thrust ball bearings, are connected between support base and top connection by isolating pad, and support base is inserted at the both ends of the center tap respectively With being fixed in shell and respectively with support seat, shell, one end of center tap is docked with power transmission shaft and leaves gap, center tap it is another End connection leather bag, being rushed in leather bag has oil, and leather bag one end is fixed on center tap, and an oil-through hole is coaxially formed with center tap, The oil-through hole leads to power transmission shaft, and leather bag is coaxially mounted in shell, and the other end of leather bag is fixed on leather bag termination, at leather bag end Oil filler point is formed with head, oil filler point is sealed by plug, and through hole is formed with the ring wall of shell.
- 2. high intensity rotating short-knot according to claim 1, it is characterised in that：Copper backing is installed at the middle part of isolating pad.
- 3. high intensity rotating short-knot according to claim 1, it is characterised in that：Oil filler point is formed with the outer wall of support base, The oil filler point leads to power transmission shaft, and oil filler point is sealed by O-ring seal and plug.
- 4. high intensity rotating short-knot according to claim 1, it is characterised in that：It is set with power transmission shaft in support base Sealing ring.
- 5. high intensity rotating short-knot according to claim 1, it is characterised in that：End suit of the center tap in support base Sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720874312.4U CN206972226U (en) | 2017-07-19 | 2017-07-19 | A kind of high intensity rotating short-knot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720874312.4U CN206972226U (en) | 2017-07-19 | 2017-07-19 | A kind of high intensity rotating short-knot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206972226U true CN206972226U (en) | 2018-02-06 |
Family
ID=61401764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720874312.4U Active CN206972226U (en) | 2017-07-19 | 2017-07-19 | A kind of high intensity rotating short-knot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206972226U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821422A (en) * | 2019-11-07 | 2020-02-21 | 连云港杰瑞自动化有限公司 | Single-joint flexible short joint |
| WO2022021930A1 (en) * | 2020-07-28 | 2022-02-03 | 中海油田服务股份有限公司 | Coring device |
-
2017
- 2017-07-19 CN CN201720874312.4U patent/CN206972226U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821422A (en) * | 2019-11-07 | 2020-02-21 | 连云港杰瑞自动化有限公司 | Single-joint flexible short joint |
| WO2022021930A1 (en) * | 2020-07-28 | 2022-02-03 | 中海油田服务股份有限公司 | Coring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 300350 24, Tianjin Industrial Park, eight Li Town, Jinnan District, Jianshe Road Patentee after: Ji AI (Tianjin) Petroleum Engineering Co., Ltd. Address before: 300350 Tianjin Xiqing District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee before: (Tianjin) Petroleum Engineering Technology Service Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.24 Jianshe Road, industrial park, Balitai Town, Jinnan District, Tianjin city, 300350 Patentee after: Jiai (Tianjin) automatic control intelligent equipment Co.,Ltd. Address before: No.24 Jianshe Road, industrial park, Balitai Town, Jinnan District, Tianjin city, 300350 Patentee before: JIAI (TIANJIN) PETROLEUM ENGINEERING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.24 Jianshe Road, industrial park, Balitai Town, Jinnan District, Tianjin city, 300350 Patentee after: Jichen Intelligent Equipment Group Co.,Ltd. Address before: No.24 Jianshe Road, industrial park, Balitai Town, Jinnan District, Tianjin city, 300350 Patentee before: Jiai (Tianjin) automatic control intelligent equipment Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |