CN2760211Y - Composite plating screw drill - Google Patents
Composite plating screw drill Download PDFInfo
- Publication number
- CN2760211Y CN2760211Y CN 200420055425 CN200420055425U CN2760211Y CN 2760211 Y CN2760211 Y CN 2760211Y CN 200420055425 CN200420055425 CN 200420055425 CN 200420055425 U CN200420055425 U CN 200420055425U CN 2760211 Y CN2760211 Y CN 2760211Y
- Authority
- CN
- China
- Prior art keywords
- plating
- rotor
- composite
- stator
- composite plating
- 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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- Rotary Pumps (AREA)
Abstract
The utility model relates to a composite plating screw drill, which is composed of a stator 1, a hollow cavity 2, a rotor 3 and a composite plating 4, wherein owing to adopting a helical hollow cavity in the inner wall of the stator, the rotor is provided with the composite plating. The utility model improves the uniformity degree of the plating, the composite plating is a chemical plating which can carry out according to the different surface shapes of work pieces, namely, the plating speed of the chemical plating on the surfaces with different work piece shapes is basically the same so as to assure the uniformity of the plating. A rotor chemical plating is a layer of nickel-phosphorus composite material which is uniformly plated on the helical surface of the rotor, the hardness of the composite plating can be increased with adopting certain heat treatment process and can be basically the same as the hardness of a hard chromium plating so as to attain the performance requirement of wear resistance. The composite plating is applied on the rotors of vehicle drive screw pumps and is partially generalized.
Description
Technical field:
The utility model relates to the downhole tool that uses on a kind of oil drilling, particularly a kind of compound plating helicoid hydraulic motor.
Background technology:
The main core component of helicoid hydraulic motor is that liquid can be converted to the rotor of mechanical energy and the motor part that stator is formed.Rotor, stator curve conjugation pair are that gerotor type is gripped pair altogether.Sealing between rotor and stator is to lean on their contact wire to form in the space.Drilling fluid enters from the motor upper end, promotes rotor and do eccentric motion in stator, because this job specification requires rotor surface that higher geometrical precision and higher abrasion resistance and lower roughness must be arranged.In order to improve the abrasion resistance of rotor, prior art is at the surface of rotor plating one deck hard chrome, carries out polishing after the plating again and reaches geometrical precision requirement and coarse requirement.When hard chrome plating, because chromium coating is along with the planform variation of workpiece does not wait, the chromium coating thickness evenness is relatively poor, and general high some coating is thicker, and low spot coating is thinner, that is to say the thick thickening of convex portion coating at rotor, in the thick attenuation of recess coating, change the linear of rotor design, be not inconsistent with design is linear, make the motor seal variation, influence the performance of helicoid hydraulic motor.
Technical scheme
The utility model purpose is to provide a kind of compound plating helicoid hydraulic motor, and it can improve rotor thickness of coating uniformity, makes it and designs linear being consistent, and improves the sealing performance of motor, and helicoid hydraulic motor high-quality performance is guaranteed.
The utility model purpose is achieved in that it is made up of stator (1), cavity (2), rotor (3), composite deposite (4), stator (1) inwall have helical form cavity (2),, rotor (3) is arranged in the stator (1), composite deposite (4) is arranged on the rotor (3).
The utility model has the helical form cavity owing to having adopted at stator inner wall, and composite deposite is arranged on the rotor.Improve the uniformity coefficient of coating, compound plating promptly is a chemical plating, and chemical plating can be carried out according to the difference of the surface configuration of workpiece, that is to say that chemical plating is basic identical in the lip-deep plating speed of same workpiece difformity, thus assurance coating ground uniformity.The rotor chemical plating is exactly to plate one deck nickel-phosphorus composite material on the helical surface of rotor uniformly, adopts certain Technology for Heating Processing then, and composite deposite hardness is improved, and is basic identical with hard chrome plating layer hardness, reaches wear-resisting performance requirement.Composite deposite is applied on the rotor of ground driving screw pump, achieves good results, and has obtained part and has applied.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment
As shown in the figure, the utility model is made up of stator 1, cavity 2, rotor 3, composite deposite 4, stator 1 inwall have helical form cavity 2,, rotor 3 is arranged in the stator 1, composite deposite 4 is arranged on the rotor 3.The thickness of coating good uniformity, the difference of surface of the work shape is to the not influence of equal property of thickness of coating, and rotor convex portion and concave portion thickness of coating are basic identical, have guaranteed that design is linear constant.Rotor adopts compound plating, because motor seal is improved, the performance of helicoid hydraulic motor improves.
Claims (2)
1, a kind of compound plating helicoid hydraulic motor, it is made up of stator (1), cavity (2), rotor (3), composite deposite (4), it is characterized in that: at stator (1) inwall helical form cavity (2) is arranged, rotor (3) is arranged in the stator (1), composite deposite (4) is arranged on the rotor (3).
2, a kind of compound plating helicoid hydraulic motor according to claim 1, it is characterized in that: composite deposite (4) is nickel-phosphorus composite material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055425 CN2760211Y (en) | 2004-12-03 | 2004-12-03 | Composite plating screw drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420055425 CN2760211Y (en) | 2004-12-03 | 2004-12-03 | Composite plating screw drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760211Y true CN2760211Y (en) | 2006-02-22 |
Family
ID=36082412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420055425 Expired - Fee Related CN2760211Y (en) | 2004-12-03 | 2004-12-03 | Composite plating screw drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760211Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587827A (en) * | 2010-11-29 | 2012-07-18 | 普拉德研究及开发股份有限公司 | Downhole motor or pump components, method of fabrication the same, and downhole motors incorporating the same |
| CN104204395A (en) * | 2011-11-29 | 2014-12-10 | 贝克休斯公司 | Apparatus and methods utilizing progressive cavity motors and pumps with rotors and/or stators with hybrid liners |
| CN104204395B (en) * | 2011-11-29 | 2016-11-30 | 贝克休斯公司 | Equipment, progressive cavity formula device and the boring method used in the wellbore |
-
2004
- 2004-12-03 CN CN 200420055425 patent/CN2760211Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102587827A (en) * | 2010-11-29 | 2012-07-18 | 普拉德研究及开发股份有限公司 | Downhole motor or pump components, method of fabrication the same, and downhole motors incorporating the same |
| US9309884B2 (en) | 2010-11-29 | 2016-04-12 | Schlumberger Technology Corporation | Downhole motor or pump components, method of fabrication the same, and downhole motors incorporating the same |
| CN104204395A (en) * | 2011-11-29 | 2014-12-10 | 贝克休斯公司 | Apparatus and methods utilizing progressive cavity motors and pumps with rotors and/or stators with hybrid liners |
| CN104204395B (en) * | 2011-11-29 | 2016-11-30 | 贝克休斯公司 | Equipment, progressive cavity formula device and the boring method used in the wellbore |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060222 Termination date: 20100104 |