CN208184650U - A kind of articulated joint for screw drilling rod - Google Patents
A kind of articulated joint for screw drilling rod Download PDFInfo
- Publication number
- CN208184650U CN208184650U CN201820654744.9U CN201820654744U CN208184650U CN 208184650 U CN208184650 U CN 208184650U CN 201820654744 U CN201820654744 U CN 201820654744U CN 208184650 U CN208184650 U CN 208184650U
- Authority
- CN
- China
- Prior art keywords
- annular
- connecting rod
- living
- slope surface
- bulb
- 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
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 238000005192 partition Methods 0.000 claims description 18
- 238000009434 installation Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 5
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
A kind of articulated joint for screw drilling rod disclosed by the utility model, including connecting rod, connecting rod bottom is circumferentially evenly provided with multiple hemispherical grooves, the setting of connecting rod bottom end is in living twist, it is living to twist inner wall and hemispherical groove formation goalpost hole, goalpost is provided with driving column in hole, connecting rod bottom centre is provided with bulb mounting hole, bulb is provided in bulb mounting hole, ball seat is correspondingly arranged below bulb, ball seat setting twists upper end living, the outside top living twisted is provided with lock sleeve, annular edge is provided on the inside of lock sleeve, annular support edge is provided on connecting rod, annular support is along being above provided with annular slope surface, the lower section on annular edge is arranged in annular slope surface, annular along be provided with sealing structure between annular slope surface.The utility model is provided with double-deck spring, and the spring stacked plays double-deck pressurization, guarantees the normal application of elasticity, and under the action of elastic force, sealing ring can be held in the palm with annular along sealing, as ambient pressure increases sealing effect more preferably.
Description
Technical field
The utility model relates to oil drilling helicoid hydraulic motor technical field more particularly to a kind of articulated joint for screw drilling rod.
Background technique
Helicoid hydraulic motor is one kind using drilling fluid as power, liquid pressure energy is switched to the positive displacement underground power drilling of mechanical energy
Tool, is mainly made of the big assembly of by-passing valve, fluid motor, universal shaft and transmission shaft etc. four, wherein the effect of universal shaft is by motor
Planetary motion be changed into the fixed-axis rotation of transmission shaft, torque and revolving speed that motor generates are passed into transmission shaft to drill bit.
Our company discloses " goalpost positioning ten thousand in the utility model patent specification of Publication No. " CN204571830U "
To axis ", it is as shown in Figure 1 which positions universal shaft comprising connecting rod 1,1 bottom of connecting rod are provided with multiple hemispherical dimples in one week
2, the setting of 1 bottom end of connecting rod twists in 3 living, and 3 inner walls of strand living and hemispherical dimples 2 form goalpost hole 4, is provided with ball in goalpost hole 4
Column 5,1 bottom centre of connecting rod are provided with bulb hole 6, and bulb 7 is provided in bulb hole 6, ball seat 8 is correspondingly arranged below bulb 7,
The setting of ball seat 8 twists 3 upper ends living, and 1 periphery of connecting rod of 2 top of hemispherical dimples is additionally provided with sheath 9, is provided on the inside of sheath 9
Pressing ring 11, is provided with lock sleeve 10 on the outside of sheath 9, and connecting rod 1 is by sheath 9, the lock sleeve 10 and insertion of pressing ring 11 is living twists in 3,
In above-mentioned technical proposal, the defect that the sheath 9 of sealing function is designed due to structure is played, is prone to wear, makes at work
It leaks at lubricating grease, and the internal mud that enters causes the universal shaft lost of life, for this reason, it may be necessary to design a kind of for universal shaft
Novel sealing structure.
Utility model content
The purpose of this utility model is that a kind of articulated joint for screw drilling rod is provided in place of avoiding the deficiencies in the prior art, from
And effectively solve the shortcomings of the prior art.
To achieve the above object, the technical solution that the utility model is taken are as follows: a kind of articulated joint for screw drilling rod, including even
Bar, connecting rod bottom are circumferentially evenly provided with multiple hemispherical grooves, and the setting of connecting rod bottom end is living to twist inner wall and half in living twist
Spherical groove forms goalpost hole, and driving column is provided in goalpost hole, and connecting rod bottom centre is provided with bulb mounting hole, bulb installation
It is provided with bulb in hole, ball seat is correspondingly arranged below bulb, ball seat setting twists upper end living, and the outside top living twisted is set
It is equipped with lock sleeve, annular edge is provided on the inside of lock sleeve, annular support edge is provided on the connecting rod, annular support is along being above provided with
Annular slope surface, the annular slope surface are arranged in the lower section on annular edge, annular along be provided with sealing structure between annular slope surface；
The sealing structure includes annular mounting base, upper spring, upper annular partition, lower spring, lower annular partition and close
Seal is resisted against the bottom on annular edge at the top of the annular mounting base, and the bottom of annular mounting base is provided with annular installation cavity,
The upper spring, upper annular partition, lower spring and lower annular partition, upper annular are disposed in annular installation cavity from top to bottom
In annular installation cavity, the top movable of the sealing ring is plugged on annular for partition and the setting movable up and down of lower annular partition
In installation cavity；
The bottom cooperation annular slope surface of the sealing ring is provided with domatic binding face, is provided on domatic binding face point
Spacer ring slot separates annular groove for domatic binding face and is divided into inside, two, outside part.
Further, the upper spring and lower spring are circumferentially evenly provided with many places.
Further, the angle of the annular slope surface and horizontal plane is 30-40 °.
The above-mentioned technical proposal of the utility model has the advantages that the utility model is provided with double-deck spring,
The spring stacked plays double-deck pressurization, guarantees that wherein one layer of spring breaks down, and another layer can also continue to play a role, and protect
The normal application for demonstrate,proving elasticity, under the action of elastic force, sealing ring can be held in the palm with annular along sealing, sealed as ambient pressure increases
Better effect can guarantee that lubricating grease does not leak in seal chamber, and as annular support is along the abrasion with sealing ring, double-deck spring can
To compensate in time, increase service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the prior art；
Fig. 2 is the utility model embodiment structural schematic diagram；
Fig. 3 is the partial enlarged view in Fig. 2 at A.
Specific embodiment
The embodiments of the present invention is described in further detail with reference to the accompanying drawings and examples.Following embodiment
For illustrating the utility model, but cannot be used to limit the scope of the utility model.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or more；Term
The orientation of the instructions such as "upper", "lower", "left", "right", "inner", "outside", " front end ", " rear end ", " head ", " tail portion " or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is construed as a limitation of the present invention.In the description of the present invention, it should be noted that unless otherwise specific regulation
And restriction, term " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
Concrete meaning.
As Figure 2-3, the universal axle sealing structure of a kind of helicoid hydraulic motor described in the present embodiment, including connecting rod 21, even
21 bottom of bar is circumferentially evenly provided with multiple hemispherical grooves 22, and the setting of 21 bottom end of connecting rod twists in 23 living, living to twist in 23
Wall and hemispherical groove 22 form goalpost hole 24, are provided with driving column 25 in goalpost hole 24,21 bottom centre of connecting rod is provided with ball
First 27 mounting hole 26 is provided with bulb 27 in 27 mounting hole 26 of bulb, ball seat 28 is correspondingly arranged below bulb 27, ball seat 28 is set
It sets and twists 23 upper ends living, 23 outside top living of twisting is provided with lock sleeve 29, and the inside of lock sleeve 29 is provided with annular along 29a,
Annular support is provided on connecting rod 21 along 30, annular support is provided with annular slope surface 30a along 30, and annular slope surface 30a is arranged in annular
Along the lower section of 29a, annular is provided with sealing structure between 29a and annular slope surface 30a；
Sealing structure includes annular mounting base 31, upper spring 32, upper annular partition 33, lower spring 34, lower annular partition 35
And sealing ring 36, the top of annular mounting base 31 are resisted against the bottom on annular edge, the bottom of annular mounting base 31 is provided with ring
Shape installation cavity is disposed with upper spring 32, upper annular partition 33, lower spring 34 and lower annular in annular installation cavity from top to bottom
Partition 35, upper annular partition 33 with lower annular partition 35 is movable up and down is arranged in annular installation cavity, sealing ring 36 it is upper
Portion's activity is plugged in annular installation cavity；
The bottom cooperation annular slope surface 30a of sealing ring 36 is provided with domatic binding face, and separation is provided on domatic binding face
Annular groove 36a separates annular groove 36a for domatic binding face and is divided into inside, two, outside part, once if side is revealed, the other side
Domatic binding face continue to play the role of sealing, temporary effect can be played to liquid by separating annular groove 36a.
Upper spring 32 and lower spring 34 are circumferentially evenly provided with many places.
The angle of annular slope surface 30a and horizontal plane is 30-40 °.
The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustively or to incite somebody to action
The utility model is limited to disclosed form.Many modifications and variations are aobvious and easy for the ordinary skill in the art
See.Embodiment was chosen and described in order to better illustrate the principle and practical application of the utility model, and makes this field
Those of ordinary skill it will be appreciated that the utility model to designing various embodiments suitable for specific applications with various modifications.
Claims (3)
1. a kind of articulated joint for screw drilling rod, including connecting rod, connecting rod bottom is circumferentially evenly provided with multiple hemispherical grooves, even
For the setting of bar bottom end in living twist, strand inner wall living and hemispherical groove form goalpost hole, are provided with driving column, connecting rod bottom in goalpost hole
Portion is provided centrally with bulb mounting hole, and bulb is provided in bulb mounting hole, and ball seat, ball seat setting are correspondingly arranged below bulb
Upper end is twisted living, it is characterised in that: the outside top living twisted is provided with lock sleeve, is provided with annular on the inside of lock sleeve
Edge, annular support edge is provided on the connecting rod, and annular support is arranged along annular slope surface, the annular slope surface is above provided on annular edge
Lower section, annular along be provided with sealing structure between annular slope surface；
The sealing structure includes annular mounting base, upper spring, upper annular partition, lower spring, lower annular partition and sealing ring,
The bottom on annular edge is resisted against at the top of the annular mounting base, the bottom of annular mounting base is provided with annular installation cavity, annular
The upper spring, upper annular partition, lower spring and lower annular partition, upper annular partition are disposed in installation cavity from top to bottom
With the setting movable up and down of lower annular partition in annular installation cavity, the top movable of the sealing ring is plugged on annular installation
It is intracavitary；
The bottom cooperation of the sealing ring annular slope surface is provided with domatic binding face, is provided with stripper loop on domatic binding face
Slot separates annular groove for domatic binding face and is divided into inside, two, outside part.
2. a kind of articulated joint for screw drilling rod according to claim 1, it is characterised in that: the upper spring and the lower equal edge of spring
It is circumferentially uniform to be provided with many places.
3. a kind of articulated joint for screw drilling rod according to claim 1, it is characterised in that: the annular slope surface and horizontal plane
Angle is 30-40 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820654744.9U CN208184650U (en) | 2018-05-04 | 2018-05-04 | A kind of articulated joint for screw drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820654744.9U CN208184650U (en) | 2018-05-04 | 2018-05-04 | A kind of articulated joint for screw drilling rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208184650U true CN208184650U (en) | 2018-12-04 |
Family
ID=64432183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820654744.9U Expired - Fee Related CN208184650U (en) | 2018-05-04 | 2018-05-04 | A kind of articulated joint for screw drilling rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208184650U (en) |
-
2018
- 2018-05-04 CN CN201820654744.9U patent/CN208184650U/en not_active Expired - Fee Related
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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: 20181204 |