CN201546616U - Screw drilling rig - Google Patents
Screw drilling rig Download PDFInfo
- Publication number
- CN201546616U CN201546616U CN 200920277743 CN200920277743U CN201546616U CN 201546616 U CN201546616 U CN 201546616U CN 200920277743 CN200920277743 CN 200920277743 CN 200920277743 U CN200920277743 U CN 200920277743U CN 201546616 U CN201546616 U CN 201546616U
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- CN
- China
- Prior art keywords
- stator
- drilling rig
- rotor
- motor
- screw drilling
- 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 - Lifetime
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Abstract
The utility model relates to a screw drilling rig, which mainly solves the problem that the prior screw drilling rig is not suitable for drilling deep holes and hard floor. The screw drilling rig is characterized in that a stator (7) has a shape of runway long circle and a rotor (6) is round with a diameter matched with the stator (7). The screw drilling rig has big output torsion and is suitable for drilling the deep hole and hard floor.
Description
Technical field:
The utility model relates to a kind of drilling tool of drilling project construction field, especially a kind of helicoid hydraulic motor.
Background technology:
Helicoid hydraulic motor be a kind of be power with the drilling fluid, can transfer fluid pressure to the positive displacement mud motor of mechanical energy.The slurry flows that pumps when slush pump enters motor through bypass valve, forms certain pressure differential in the import and export of motor, promotes the axis rotation of rotor around stator, and rotating speed and moment of torsion are passed to drill bit by universal drive shaft and power transmission shaft, thereby realizes drillng operation.Existing screw drilling tool motor mostly is the bull motor greatly, has the advantages that output torque is little, rotating speed is fast, but is not suitable for drilling deep hole and the high stratum of hardness.
The utility model content:
In order to overcome the deficiency that existing helicoid hydraulic motor is not suitable for the high stratum of drilling deep hole and hardness, the utility model provides a kind of helicoid hydraulic motor, and this helicoid hydraulic motor has the advantages that output torque is big, be fit to the high stratum of drilling deep hole and hardness.
The technical solution of the utility model is: a kind of helicoid hydraulic motor, comprise motor assembly and inner rotor, stator thereof, and described stator is the Long Circle of runway shape, rotor is the circle that diameter and stator match.
The utlity model has following beneficial effect: owing to take such scheme, stator is Long Circle, and rotor is circular, and promptly this motor is the single head motor, compares with the bull motor, has the advantages that rotating speed is little, moment of torsion is big, is fit to drilling deep hole and the high stratum of hardness.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model;
Accompanying drawing 2 is the sectional drawings along A-A in the accompanying drawing 1.
1-by-pass valve assembly among the figure, the anti-lost assembly of 2-, 3-motor assembly, 4-universal drive shaft assembly, 5-driving-shaft assembly, 6-rotor, 7-stator.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is further described:
By Figure 1 and Figure 2, a kind of helicoid hydraulic motor, mainly be made up of by-pass valve assembly 1, anti-lost assembly 2, motor assembly 3, universal drive shaft assembly 4, driving-shaft assembly 5 five parts, wherein anti-lost assembly 2 can be free according to customer requirements, and motor assembly 3 is critical pieces of drilling tool.Motor assembly 3 main rotors 6 by inside, stator 7 is formed, described stator 7 is the Long Circle of runway shape, there is nonmetallic lining stator 7 inside, rotor 6 is circular, its external diameter and stator 7 lining internal diameters match, and guarantee to seal, rotor 6 is separated into two not connected parts with the cross section of stator 7, be full of high pressure and low pressure liquid respectively, in 7 one helical pitch length of stator, rotor 6 is connected contact and forms a complete enclosed cavity with stator 7, when rotor 6 is static in stator 7, the enclosed cavity switch is constant, along with the variation of rotor position in the stator section, enclosed cavity communicates with high pressure chest or low pressure chamber periodically, and rotor rotates a circle, rotor moves back and forth once in stator, and the liquid that is sealed in the enclosed cavity is discharged from.Rotor is under the highly pressurised liquid effect and rotate like this, and two chamber cycles communicated, and makes each work chamber cross section along produce unbalanced fluid power on the rotor pitch length under the highly pressurised liquid effect, and the component of this fluid power is output torque.We are referred to as the single head motor this kind motor, compare with the bull motor, have the advantages that rotating speed is little, moment of torsion is big, are fit to drilling deep hole and the high stratum of hardness.
Claims (1)
1. a helicoid hydraulic motor comprises motor assembly (3) and inner rotor (6), stator (7) thereof, and it is characterized in that: described stator (7) is the Long Circle of runway shape, and rotor (6) is the circle that diameter and stator (7) match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920277743 CN201546616U (en) | 2009-12-10 | 2009-12-10 | Screw drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920277743 CN201546616U (en) | 2009-12-10 | 2009-12-10 | Screw drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546616U true CN201546616U (en) | 2010-08-11 |
Family
ID=42601790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920277743 Expired - Lifetime CN201546616U (en) | 2009-12-10 | 2009-12-10 | Screw drilling rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201546616U (en) |
-
2009
- 2009-12-10 CN CN 200920277743 patent/CN201546616U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |
|
| CX01 | Expiry of patent term |