CN208294458U - A kind of articulated joint for screw drilling rod abrasion-proof structure - Google Patents
A kind of articulated joint for screw drilling rod abrasion-proof structure Download PDFInfo
- Publication number
- CN208294458U CN208294458U CN201820665833.3U CN201820665833U CN208294458U CN 208294458 U CN208294458 U CN 208294458U CN 201820665833 U CN201820665833 U CN 201820665833U CN 208294458 U CN208294458 U CN 208294458U
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- CN
- China
- Prior art keywords
- alloy layer
- bulb
- connecting rod
- hard alloy
- ball seat
- 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 15
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 36
- 239000000956 alloy Substances 0.000 claims abstract description 36
- 229910001080 W alloy Inorganic materials 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 229910000863 Ferronickel Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 3
- 239000010931 gold Substances 0.000 claims 3
- 229910052737 gold Inorganic materials 0.000 claims 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A kind of articulated joint for screw drilling rod abrasion-proof structure 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 hole, bulb is provided with bulb in hole, ball seat is correspondingly arranged below bulb, ball seat setting twists upper end living, connecting rod periphery above hemispherical groove is additionally provided with sheath, pressing ring is provided on the inside of sheath, lock sleeve is provided on the outside of sheath, the first hard alloy layer is provided on the outside of driving column, the second hard alloy layer is provided on the spherical surface of bulb, third hard alloy layer is provided on the spherical surface of ball seat.The second hard alloy layer is arranged on bulb and third hard alloy layer is arranged on ball seat, improves the wear-resisting property of above-mentioned part, extends service life by the way that the first hard alloy layer is arranged on driving column for the utility model.
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 are resistance to
Grind structure.
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, mesh
Preceding universal shaft in the market, driving column can slide, and lower end ball is simply fallen out, and cause universal shaft activity point of view small, and flexibility is poor,
And ball seat and bulb contact area are small, and receiving pressure capability is poor, easy to damage.
In order to solve the above-mentioned technical problem, utility model patent explanation of the our company in Publication No. " CN204571830U "
It is disclosed in book " goalpost positioning universal shaft ", it is as shown in Figure 1 which positions universal shaft comprising connecting rod 1,1 bottom one of connecting rod
It is provided with multiple hemispherical dimples 2 week, 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 goalpost 5 in goalpost hole 4, and 1 bottom centre of connecting rod is provided with bulb hole 6, bulb 7, bulb are provided in bulb hole 6
7 lower sections are correspondingly arranged on ball seat 8, and 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 with pressing ring 11 on the inside of sheath 9, and lock sleeve 10 is provided on the outside of sheath 9, and connecting rod 1 passes through sheath 9,10 He of lock sleeve
The insertion of pressing ring 11 is living to be twisted in 3, however is found in use, in the above-mentioned technical solutions, between bulb and ball seat contact surface
Frictional dissipation and goalpost 5 frictional dissipation it is larger, will affect normal use.
Utility model content
The purpose of this utility model is that it is wear-resisting to provide a kind of articulated joint for screw drilling rod in place of avoiding the deficiencies in the prior art
Structure, to 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 abrasion-proof structure,
Including connecting rod, connecting rod bottom is circumferentially evenly provided with multiple hemispherical grooves, and the setting of connecting rod bottom end is in living twist, in strand living
Wall and hemispherical groove form goalpost hole, are provided with driving column in goalpost hole, connecting rod bottom centre is provided with bulb hole, bulb hole
It is inside provided with bulb, ball seat is correspondingly arranged below bulb, ball seat setting is outside the connecting rod above strand upper end living, hemispherical groove
Enclose and be additionally provided with sheath, pressing ring is provided on the inside of sheath, be provided with lock sleeve on the outside of sheath, connecting rod by sheath, lock sleeve and
Pressing ring insertion is living to be twisted, and the first hard alloy layer is provided on the outside of the driving column, and the is provided on the spherical surface of the bulb
Two hard alloy layers are provided with third hard alloy layer on the spherical surface of the ball seat,
The surface of the driving column is provided with several the first hemispherical of place holding tanks；
Several the second hemispherical of place holding tanks are provided on the spherical surface of the bulb；
Several place's third hemispherical holding tanks are provided on the spherical surface of the ball seat.
Further, first hard alloy layer, the second hard alloy layer and third hard alloy layer are tungsten alloy layer.
Further, the tungsten alloy layer is ferronickel tungsten alloy coating.
Further, first hard alloy layer with a thickness of 1-2mm.
Further, second hard alloy layer is with third hard alloy layer with a thickness of 0.5-1.5mm.
The above-mentioned technical proposal of the utility model has the advantages that the utility model by being arranged on driving column
The second hard alloy layer is arranged on bulb and third hard alloy layer is arranged on ball seat, improves for first hard alloy layer
The wear-resisting property of above-mentioned part, extends service life.
Detailed description of the invention
Fig. 1 is prior art construction schematic diagram；
Fig. 2 is the utility model embodiment structural schematic diagram；
Fig. 3 is the utility model embodiment driving column structural schematic diagram；
Fig. 4 is the utility model embodiment bulb and ball socket structure schematic diagram.
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 in Figure 2-4, a kind of articulated joint for screw drilling rod abrasion-proof structure described in the present embodiment, including connecting rod 21, connecting rod
21 bottoms are 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 23 inner walls
Goalpost hole 24 is formed with hemispherical groove 22, is provided with driving column 25 in goalpost hole 24,21 bottom centre of connecting rod is provided with bulb
Hole 26 is provided with bulb 27 in bulb hole 26, and ball seat 28 is correspondingly arranged below bulb 27, and the setting of ball seat 28 twists on 23 living
21 periphery of connecting rod at end, the top of hemispherical groove 22 is additionally provided with sheath 29, is provided with pressing ring 30 on the inside of sheath 29, outside sheath 29
Side is provided with lock sleeve 31, and connecting rod 21 is lived and twisted in 23 by sheath 29, lock sleeve 31 and the insertion of pressing ring 30, the outside of driving column 25
It is provided with the first hard alloy layer 32, the second hard alloy layer 33 is provided on the spherical surface of bulb 27, is set on the spherical surface of ball seat 28
It is equipped with third hard alloy layer 34,
The surface of driving column 25 is provided with several place's the first hemispherical holding tank 25a, and the first hard alloy layer 32 passes through the
One hemispherical holding tank 25a is closely fitted in the surface of driving column 25；
It is provided with several place's the second hemispherical holding tank 27a on the spherical surface of bulb 27, the second hard alloy layer 33 passes through the
Two hemispherical holding tank 27a are closely fitted on the spherical surface of bulb 27；
It is provided with several place's third hemispherical holding tank 28a on the spherical surface of ball seat 28, third hard alloy layer 34 passes through the
Three hemispherical holding tank 28a are closely fitted on the spherical surface of ball seat 28.
First hard alloy layer 32, the second hard alloy layer 33 and third hard alloy layer 34 are tungsten alloy layer.
Tungsten alloy layer is ferronickel tungsten alloy coating.
First hard alloy layer 32 with a thickness of 1-2mm.
Second hard alloy layer 33 is with third hard alloy layer 34 with a thickness of 0.5-1.5mm.
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 (5)
1. a kind of articulated joint for screw drilling rod abrasion-proof structure, including connecting rod, connecting rod bottom are circumferentially evenly provided with multiple hemisphere
Connected in star, for the setting of connecting rod bottom end in living twist, strand inner wall living and hemispherical groove form goalpost hole, are provided with transmission in goalpost hole
Column, connecting rod bottom centre are provided with bulb hole, and bulb is provided in bulb hole, is correspondingly arranged on ball seat below bulb, ball seat is set
It sets and twists upper end living, the connecting rod periphery above hemispherical groove is additionally provided with sheath, and pressing ring, sheath outside are provided on the inside of sheath
It is provided with lock sleeve, connecting rod passes through in sheath, lock sleeve and pressing ring insertion strand living, it is characterised in that: the outside of the driving column
It is provided with the first hard alloy layer, the second hard alloy layer is provided on the spherical surface of the bulb, is set on the spherical surface of the ball seat
It is equipped with third hard alloy layer,
The surface of the driving column is provided with several the first hemispherical of place holding tanks；
Several the second hemispherical of place holding tanks are provided on the spherical surface of the bulb；
Several place's third hemispherical holding tanks are provided on the spherical surface of the ball seat.
2. a kind of articulated joint for screw drilling rod abrasion-proof structure according to claim 1, it is characterised in that: first hard closes
Layer gold, the second hard alloy layer and third hard alloy layer are tungsten alloy layer.
3. a kind of articulated joint for screw drilling rod abrasion-proof structure according to claim 2, it is characterised in that: the tungsten alloy layer is
Ferronickel tungsten alloy coating.
4. a kind of articulated joint for screw drilling rod abrasion-proof structure according to claim 1, it is characterised in that: first hard closes
Layer gold with a thickness of 1-2mm.
5. a kind of articulated joint for screw drilling rod abrasion-proof structure according to claim 1, it is characterised in that: second hard closes
Layer gold is with third hard alloy layer with a thickness of 0.5-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820665833.3U CN208294458U (en) | 2018-05-07 | 2018-05-07 | A kind of articulated joint for screw drilling rod abrasion-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820665833.3U CN208294458U (en) | 2018-05-07 | 2018-05-07 | A kind of articulated joint for screw drilling rod abrasion-proof structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208294458U true CN208294458U (en) | 2018-12-28 |
Family
ID=64703341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820665833.3U Expired - Fee Related CN208294458U (en) | 2018-05-07 | 2018-05-07 | A kind of articulated joint for screw drilling rod abrasion-proof structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208294458U (en) |
-
2018
- 2018-05-07 CN CN201820665833.3U patent/CN208294458U/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: 20181228 |