CN206111085U - Cardan shaft is sealed to compensation formula - Google Patents
Cardan shaft is sealed to compensation formula Download PDFInfo
- Publication number
- CN206111085U CN206111085U CN201620999112.7U CN201620999112U CN206111085U CN 206111085 U CN206111085 U CN 206111085U CN 201620999112 U CN201620999112 U CN 201620999112U CN 206111085 U CN206111085 U CN 206111085U
- Authority
- CN
- China
- Prior art keywords
- ball
- connecting rod
- living
- cap
- strand
- 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 relates to an oil drilling cementing technology field especially relates to a cardan shaft is sealed to compensation formula, including the same top connection and lower clutch of structure, connect through the connecting rod between top connection and the lower clutch, top connection and lower clutch mainly comprise the hank of living, pressure cap, ball seat, ball cap, lock sleeve, ball nail, spring and screw, the ball nail passes live the hank with the end connection of connecting rod prevents that the connecting rod from droing, the both ends of connecting rod are fixed with respectively ball cap, the ball seat is installed the inside of living and twisting the dorsal part of pressing the cap with the contact of spring one end, the other end and the threaded connection of spring are simply twisting the screw cooperation, the lock sleeve with live and twist threaded connection. This kind of compensation formula ball sealer nail cardan shaft also is the form that adopts the oil seal, has guaranteed its inner structure's service environment, has prolonged the life of cardan shaft, has improved the factor of safety of cardan shaft.
Description
Technical field
This utility model is related to oil drilling cementing technology field, more particularly to a kind of compensation sealing universal drive shaft.
Background technology
At present, the helicoid hydraulic motor used in oil, the drilling engineering of natural gas, the purpose of its universal drive shaft is exactly by motor
The eccentric motion of rotor is converted to the dead axle motion of power transmission shaft, and its universal drive shaft life-span just determines the machine life of helicoid hydraulic motor.
At present the version of general articulated joint for screw drilling rod is divided into three kinds, a kind of petal type, a kind of ball shape structure, also goalpost type.
The simple structure of petal type（Movable joint-connecting rod-movable joint composition）, completely by drilling fluid erosion, the life-span is shorter, and processing technique is multiple
It is miscellaneous.And ball-type universal shaft structure groundwork position is protected by sealing shroud, last a long time, but because big ball and ball seat bear big
Load, especially ball seat abrasion is more serious, thus have impact on the life-span of ball-type universal drive shaft, goalpost type universal drive shaft and ball-type ten thousand
It is essentially identical to axle construction, simply bead is made into goalpost transmission, but there is also above-mentioned situation.
Utility model content
The purpose of this utility model is to overcome the shortcomings of above-mentioned technology, and provides a kind of compensation sealing universal drive shaft, is had
The backing pressure phenomenon of the alleviation drilling tool of effect.
This utility model for achieving the above object, is employed the following technical solutions：
A kind of compensation sealing universal drive shaft, it is characterised in that：Including the top connection of structure identical and lower contact, it is described on connect
Connected by connecting rod between head and lower contact, the top connection and lower contact are mainly by strand living, pressure cap, ball seat, ball cap, locking
Set, ball nail, spring and screw are constituted, and the ball nail is connected through living the strand with the end of the connecting rod, prevents connecting rod from taking off
Fall, the connecting rod is respectively fixed at two ends with the ball cap, and the ball cap coordinates with the ball seat, the ball seat is arranged on described
The inside for twisting living, the dorsal part of the ball seat coordinates with the pressure cap, and the dorsal part of the pressure cap is contacted with the spring one end, described
The other end of spring and the screw fit being threaded on living strand, the lock sleeve is threadedly coupled with living the strand.
Preferably, the living strand is provided with the first sealing ring with the connecting rod contact site.
Preferably, it is provided with the second sealing ring between the lock sleeve and the strand living.
The beneficial effects of the utility model are:Compared with prior art, because universal drive shaft is by the deadweight and motor torsion of rotor
Square, so this compensation ball sealer nail universal drive shaft is contacted using sphere with sphere, the design that face contacts is followed closely in strand face living with ball,
On the one hand this structure can carry bigger axial load, on the other hand can transmit bigger moment of torsion, at the same when ball cap face with
After ball seat surface wear, spring can promote pressure cap and ball seat to compensate wear extent, so can effectively ensure between ball seat and ball cap
Bear stable axial load.Simultaneously this compensation ball sealer nail universal drive shaft is also using oil-tightening form, it is ensured that its
The use environment of internal structure, extends the service life of universal drive shaft, improves the safety coefficient of universal drive shaft.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings and preferred embodiment describes specific embodiment of the present utility model in detail.As shown in figure 1, one
Compensation sealing universal drive shaft, including the top connection of structure identical and lower contact are planted, by connecting between the top connection and lower contact
Bar 1 connects, the top connection and lower contact mainly by it is living twist 2, pressure cap 3, ball seat 4, ball cap 5, lock sleeve 6, ball nail 7, spring 8 with
And screw 9 is constituted, the ball nail is connected through living the strand with the end of the connecting rod, prevents connecting rod from coming off, the connecting rod
The ball cap is respectively fixed at two ends with, the ball cap coordinates with the ball seat, the ball seat is arranged on the inside for twisting living, institute
The dorsal part and the pressure cap for stating ball seat coordinates, and the dorsal part of the pressure cap is contacted with the spring one end, the other end of the spring
With the screw fit being threaded on living strand, the lock sleeve is threadedly coupled with living the strand.It is described it is living twist with it is described
Connecting rod contact site is provided with the first sealing ring 10.The second sealing ring 11 is provided between the lock sleeve and the strand living.
Due to deadweight of the universal drive shaft by rotor and motor torsional moment, thus this compensation ball sealer nail universal drive shaft using sphere with
Sphere contacts, the design that strand face living contacts with ball nail face, and petal universal shaft, ball-type universal drive shaft and goalpost universal drive shaft, point
It is not linear contact lay, point contact and linear contact lay.On the one hand this composition of sample can carry bigger axial load, on the other hand can be with
The bigger moment of torsion of transmission, while behind ball cap face and ball seat surface wear, spring can promote pressure cap and ball seat to compensate wear extent, this
Sample can effectively ensure to bear stable axial load between ball seat and ball cap.Simultaneously this compensation ball sealer follows closely universal drive shaft
It is using oil-tightening form, it is ensured that the use environment of its internal structure, extends the service life of universal drive shaft, improves ten thousand
To the safety coefficient of axle.
The above is only preferred implementation of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of without departing from this utility model principle, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (3)
1. a kind of compensation sealing universal drive shaft, it is characterised in that：Including the top connection of structure identical and lower contact, the top connection
Connected by connecting rod and lower contact between, the top connection and lower contact mainly by strand living, pressure cap, ball seat, ball cap, lock sleeve,
Ball nail, spring and screw are constituted, and the ball nail is connected through living the strand with the end of the connecting rod, prevents connecting rod from coming off,
The connecting rod is respectively fixed at two ends with the ball cap, and the ball cap coordinates with the ball seat, and the ball seat is arranged on the work
The inside of strand, the dorsal part of the ball seat coordinates with the pressure cap, and the dorsal part of the pressure cap is contacted with the spring one end, the bullet
The other end of spring and the screw fit being threaded on living strand, the lock sleeve is threadedly coupled with living the strand.
2. compensation sealing universal drive shaft according to claim 1, it is characterised in that：The strand living and the connecting rod contact site
Position is provided with the first sealing ring.
3. compensation sealing universal drive shaft according to claim 1, it is characterised in that：Between the lock sleeve and the strand living
It is provided with the second sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620999112.7U CN206111085U (en) | 2016-08-30 | 2016-08-30 | Cardan shaft is sealed to compensation formula |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620999112.7U CN206111085U (en) | 2016-08-30 | 2016-08-30 | Cardan shaft is sealed to compensation formula |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206111085U true CN206111085U (en) | 2017-04-19 |
Family
ID=58515138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620999112.7U Expired - Fee Related CN206111085U (en) | 2016-08-30 | 2016-08-30 | Cardan shaft is sealed to compensation formula |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206111085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150344A (en) * | 2016-08-30 | 2016-11-23 | 天津立林石油机械有限公司 | Compensation sealing universal drive shaft |
-
2016
- 2016-08-30 CN CN201620999112.7U patent/CN206111085U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150344A (en) * | 2016-08-30 | 2016-11-23 | 天津立林石油机械有限公司 | Compensation sealing universal drive shaft |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20200830 |