CN204127093U - The screw drill transmission shaft of fluid erosion prevention cap can be installed - Google Patents
The screw drill transmission shaft of fluid erosion prevention cap can be installed Download PDFInfo
- Publication number
- CN204127093U CN204127093U CN201420603139.0U CN201420603139U CN204127093U CN 204127093 U CN204127093 U CN 204127093U CN 201420603139 U CN201420603139 U CN 201420603139U CN 204127093 U CN204127093 U CN 204127093U
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- fluid erosion
- inwall
- prevention cap
- erosion prevention
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of screw drill transmission shaft installing fluid erosion prevention cap, comprise axle body, the right-hand member internal diameter of described axle body increases thus form a step on the inwall of described axle body, described inwall on the right side of described step is processed with internal thread, and the described inwall internal diameter on the right side of described internal thread continues increase and transit to a limited step by a cambered surface.Transmission shaft structure in the utility model, coordinates with fluid erosion prevention cap, can reduce transmission shaft originally experience drilling fluid erosion, improve transmission shaft serviceability.
Description
Technical field
The utility model relates to helicoid hydraulic motor field, in particular to a kind of screw drill transmission shaft installing fluid erosion prevention cap.
Background technique
Helicoid hydraulic motor is in drilling process, and drilling fluid flows to auger motor, then has the drilling fluid of 97% to be pooled in transmission shaft hydrophthalmia through water cap side through hole.The transmission shaft hydrophthalmia inwall be connected with water cap in this part drilling fluid erosion, frequent high-pressure vortex erosion, the erosion of transmission shaft head hydrophthalmia inwall is gone out pit, transmission shaft head wall thickness is thinning, intensity reduces, in helicoid hydraulic motor checking maintenance process, this transmission shaft serious by erosion needs to change; Again because transmission shaft head position is subject to alternating compound stress, the transmission shaft head that happens occasionally fractures accident.
Model utility content
Technical problem to be solved in the utility model is, provide a kind of can reduce transmission shaft originally experience drilling fluid erosion, improve the transmission shaft structure of transmission shaft serviceability.
Therefore, the technical solution of the utility model is as follows:
A kind of screw drill transmission shaft installing fluid erosion prevention cap, comprise axle body, the right-hand member internal diameter of described axle body increases thus form a step on the inwall of described axle body, described inwall on the right side of described step is processed with internal thread, and the described inwall internal diameter on the right side of described internal thread continues increase and transit to a limited step by a cambered surface.
With this transmission shaft with the use of fluid erosion prevention cap as follows:
Screw drill transmission shaft hydrophthalmia fluid erosion prevention cap comprises body, the left end of described body is processed with the outside thread with described screw-internal thread fit, the right-hand member of described body is provided with the annular flange flange of limited step cooperation described in, transitional surface on the left of described annular flange flange matches with described cambered surface, the right side of described annular flange flange is provided with multiple draw-in groove for body described in dismounting.
Transmission shaft in the utility model, by coordinating with fluid erosion prevention cap, can play well and reduce the washed out effect of screw drill transmission shaft spindle nose hydrophthalmia inwall, and in checking maintenance process, the fit system of fluid erosion prevention cap and transmission shaft is changed conveniently, avoiding the whole velamen of transmission shaft because not installing helmet to change, reducing cost; In addition, helmet can adopt material more erosion resistant than the axle body of transmission shaft, improves durability further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the screw drill transmission shaft of the fluid erosion prevention installed cap according to the utility model embodiment;
Fig. 2 be with Fig. 1 in the structural representation of the fluid erosion prevention cap of the respective outer side edges of the screw drill transmission shaft of fluid erosion prevention cap can be installed.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
As shown in Figure 1, according to the screw drill transmission shaft of the fluid erosion prevention the installed cap of embodiment of the present utility model, comprise axle body 1, the right-hand member internal diameter of described axle body 1 increases thus on the inwall of described axle body 1, forms a step 2, described inwall on the right side of described step 2 is processed with internal thread 3, and the described inwall internal diameter on the right side of described internal thread 3 continues increase and transit to a limited step 5 by a cambered surface 4.
As shown in Figure 2, with this transmission shaft with the use of fluid erosion prevention cap as follows:
Screw drill transmission shaft hydrophthalmia fluid erosion prevention cap comprises body 6, the left end of described body 6 is processed with the outside thread 7 coordinated with described internal thread 3, the right-hand member of described body 6 is provided with the annular flange flange 8 of limited step 5 cooperation described in, transitional surface 9 on the left of described annular flange flange 8 matches with described cambered surface 4, the right side of described annular flange flange 8 is provided with multiple draw-in groove 10 for body described in dismounting.
Transmission shaft in the utility model, by coordinating with fluid erosion prevention cap, can play well and reduce the washed out effect of screw drill transmission shaft spindle nose hydrophthalmia inwall, and in checking maintenance process, the fit system of fluid erosion prevention cap and transmission shaft is changed conveniently, avoiding the whole velamen of transmission shaft because not installing helmet to change, reducing cost; In addition, helmet can adopt material more erosion resistant than the axle body 1 of transmission shaft, improves durability further.
When helmet is installed, uniform application anaerobic adhesive on outside thread 7 is also connected with internal thread 3, is then stuck in fastening helmet in draw-in groove 10 with special spanner; When dismounting changed by helmet, with the body 6 of gas welding barbecue helmet, by roasting for the anaerobic adhesive of solidification crisp, be then stuck in draw-in groove 10 with special spanner and unclamp helmet and complete taking-up.
In sum, content of the present utility model is not limited in the above-described embodiment, and those skilled in the art can propose other embodiment within technological guidance's thought of the present utility model, but this embodiment is included within scope of the present utility model.
Claims (1)
1. one kind the screw drill transmission shaft of fluid erosion prevention cap can be installed, it is characterized in that, comprise axle body (1), the right-hand member internal diameter of described axle body (1) increases thus form a step (2) on the inwall of described axle body (1), the described inwall on described step (2) right side is processed with internal thread (3), and the described inwall internal diameter on described internal thread (3) right side continues to increase and pass through a cambered surface (4) to transit to a limited step (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420603139.0U CN204127093U (en) | 2014-10-19 | 2014-10-19 | The screw drill transmission shaft of fluid erosion prevention cap can be installed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420603139.0U CN204127093U (en) | 2014-10-19 | 2014-10-19 | The screw drill transmission shaft of fluid erosion prevention cap can be installed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204127093U true CN204127093U (en) | 2015-01-28 |
Family
ID=52383452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420603139.0U Expired - Fee Related CN204127093U (en) | 2014-10-19 | 2014-10-19 | The screw drill transmission shaft of fluid erosion prevention cap can be installed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204127093U (en) |
-
2014
- 2014-10-19 CN CN201420603139.0U patent/CN204127093U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204127093U (en) | The screw drill transmission shaft of fluid erosion prevention cap can be installed | |
| CN204163622U (en) | Screw drill transmission shaft hydrophthalmia fluid erosion prevention cap | |
| CN206054688U (en) | Tube-expanding type hitch bar and the linear module with tube-expanding type hitch bar | |
| CN204084449U (en) | The directed steel wheel of lighter | |
| CN202592311U (en) | Bush dismounting device | |
| CN204721146U (en) | Motor fast disassembly type syndeton | |
| CN204591169U (en) | A kind of deformable rolling wheel centralizer | |
| CN203979693U (en) | A kind of lock contracting formula inipple of Stainless Steel Tube | |
| CN207178500U (en) | A kind of shaft coupling of lifting motor of travelling crane fixed structure | |
| CN204476455U (en) | Simple type pumping water into coal device | |
| CN202082231U (en) | Positioning bushing capable of being replaced in blind hole | |
| CN206708140U (en) | A kind of adjustable practical sleeve | |
| CN203853558U (en) | Center shaft capable of being quickly detached | |
| CN204186307U (en) | Reduce the water cap of drilling fluid hydraulic erosion | |
| CN205173220U (en) | Roller combined mechanism | |
| CN204253659U (en) | A kind of boats and ships separation coupling | |
| CN203906392U (en) | Connected pump case | |
| CN201778755U (en) | Wellhead guide oil nozzle of self-blowing well | |
| CN203948475U (en) | The outer ring forging of hub | |
| CN204137272U (en) | A kind of electric bicycle handle grip anti-slip structure | |
| CN203993597U (en) | Location tapered sleeve | |
| CN202689971U (en) | Concave screw type circular drill rod | |
| CN202418268U (en) | Inner star wheel with trough on inner circle for automobile drive shaft | |
| CN204041758U (en) | The transmission shaft of the hidden apparatus of the fixing deep groove ball bearing of band | |
| CN203272607U (en) | High-strength hardened face gear speed reducer easy to assemble |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20191019 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |