CN104695853B - A kind of screw drilling tool motor and the helicoid hydraulic motor with the motor - Google Patents
A kind of screw drilling tool motor and the helicoid hydraulic motor with the motor Download PDFInfo
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- CN104695853B CN104695853B CN201510096676.XA CN201510096676A CN104695853B CN 104695853 B CN104695853 B CN 104695853B CN 201510096676 A CN201510096676 A CN 201510096676A CN 104695853 B CN104695853 B CN 104695853B
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- drilling tool
- rubber bushing
- screw drilling
- tool motor
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Abstract
The present invention relates to a kind of screw drilling tool motor and the helicoid hydraulic motor with the motor, wherein screw drilling tool motor includes stator metal shell, rubber bushing and rotor, the inner chamber of stator metal shell includes middle expanding part and the threaded connection part positioned at middle expanding part two ends, and aperture of the aperture less than middle expanding part of threaded connection part；Rubber bushing is arranged in the expanding part in the centre of stator metal shell, and rotor is arranged in the endoporus of rubber bushing, and is meshed to form annular seal space with rubber bushing.In the drilling operation that the composite can be widely applied to oil, natural gas exploration and development.Aperture of the invention by expanding screw drilling tool motor stator metal shell inner chamber center section, considerably increase the drilling fluid area of passage of screw drilling tool motor, so that screw drilling tool motor has the features such as output torque is high, torque output is stable, transformation efficiency is high, so that drilling duty and efficiency in effectively improving the drilling process of oil, natural gas exploration and development.
Description
Technical field
The present invention relates to a kind of driller motor, more particularly to a kind of screw drill for exploration and developments such as oil, natural gases
Have motor and the helicoid hydraulic motor with the motor.
Background technology
Helicoid hydraulic motor used in the drilling engineering of the exploration and developments such as oil, natural gas, its power resources are a kind of
Positive displacement motor, the motor includes two essential parts of stator and rotor, and can convert the high pressure liquid energy of cleaner for high-pressure drilling fluid
For the mechanical energy of bit.Stationary part includes stator metal shell and rubber bushing, stator in conventional screw driller motor
Metal shell inner chamber is smooth, cylindrical peripheral surface；Rubber is bonded on the inwall of stator metal shell by sulfuration process and forms rubber lining
Set, the endoporus of rubber bushing is continuous helical curved surface；Rotor portion be arranged on rubber bushing endoporus in, and with rubber bushing phase
Engagement forms annular seal space.In the design of motor, drilling fluid area of passage is one be proportionate with the torque output of motor
Constant.At present, the stator metal shell inner chamber of motor is designed using uniform internal diameter mostly in helicoid hydraulic motor, and this causes the drilling well of motor
The design of liquid area of passage is very limited, because drilling fluid area of passage is be proportionate with the torque output of motor one
Constant, thus cause the output torque and efficiency of motor in helicoid hydraulic motor to effectively improve.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of screw drilling tool motor with height output moment of torsion and efficiency
And the helicoid hydraulic motor with the motor.
To achieve the above object, the present invention takes following technical scheme：A kind of screw drilling tool motor, including stator metal-back
Body, rubber bushing and rotor, it is characterised in that the inner chamber of the stator metal shell includes middle expanding part and positioned at described
The threaded connection part at middle expanding part two ends, and the aperture of the threaded connection part is less than the expanding part in the centre
Aperture；The rubber bushing is arranged in the expanding part in the centre of the stator metal shell, and the rotor is arranged on institute
In the endoporus for stating rubber bushing, and it is meshed to form annular seal space with the rubber bushing.
The endoporus of the rubber bushing is continuous cycloidal helical curved surface, and the outer wall of the rotor is also bent for continuous cycloidal helical
Face, a pair of conjugation cycloidal engagement pairs of the rubber bushing and rotor formation.
The ratio between head number of the rotor and the rubber bushing is N/ (N+1), and N is the natural number more than 0.
The rubber bushing is that rubber is bonded in formation on the inwall of the stator metal shell by sulfuration process.
The middle wide diameter portion of the stator metal shell is divided into smooth, cylindrical peripheral surface.
A kind of helicoid hydraulic motor, including by-pass valve assembly, motor assembly, universal axle assembly and the biography being sequentially connected from top to bottom
Moving axis assembly, it is characterised in that the motor assembly is above-mentioned screw drilling tool motor.
The present invention is due to taking above technical scheme, and it has advantages below：1st, the present invention changes existing helicoid hydraulic motor
The uniform internal diameter design of stator metal shell in motor, and by expanding screw drilling tool motor stator metal shell inner chamber center section
Aperture, considerably increase the drilling fluid area of passage of screw drilling tool motor so that screw drilling tool motor have output torque it is high,
The features such as torque output is stable, transformation efficiency is high, so that in effectively increasing the drilling process of oil, natural gas exploration and development
Drilling duty and efficiency.2nd, the bore design of the rubber bushing of screw drilling tool motor is continuous cycloidal helical curved surface by the present invention,
The outer wall of rotor is also designed as continuous cycloidal helical curved surface simultaneously, so that a pair of conjugation cycloids of rubber bushing and rotor formation are nibbled
Close secondary, this design can further improve the drilling fluid area of passage and power-conversion and transmittability of screw drilling tool motor, from
And further improve the ability of the stable output high torque of screw drilling tool motor.
Brief description of the drawings
Fig. 1 is the cross section structure diagram of screw drilling tool motor of the present invention；
Fig. 2 is the cross section structure diagram of stator metal shell in screw drilling tool motor of the present invention；
Fig. 3 is the cross section structure diagram of helicoid hydraulic motor of the present invention.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and examples.
Fig. 1, Fig. 2 show the screw drilling tool motor 100 provided according to the present invention, and it includes stator metal shell 1, rubber
Bushing 2 and rotor 3, the inner chamber of stator metal shell 1 include middle expanding part 11 and positioned at the middle expanding two ends of part 11
It is threadedly coupled part 12, and aperture of the aperture less than middle expanding part 11 of threaded connection part 12.Rubber bushing 2 is arranged at
In the expanding part 11 in centre of stator metal shell 1, rotor 3 be arranged on rubber bushing 2 endoporus in, and with the phase of rubber bushing 2
Engagement forms annular seal space.The screw drilling tool motor 100 that the present invention is provided is due to the expanding part 11 in the centre of stator metal shell 1
Borehole enlargement, thus to motor drilling fluid area of passage comprehensive Design provide bigger design space, make rubber bushing 2 with
The motor pair of the formation of rotor 3 has bigger drilling fluid area of passage and stronger power-conversion and transmittability, so as to have
Higher output torque and efficiency.
In above-described embodiment, as shown in figure 1, the endoporus of rubber bushing 2 is continuous cycloidal helical curved surface, while rotor 3
Outer wall is also continuous cycloidal helical curved surface, so that a pair of conjugation cycloidal engagement pairs of rubber bushing 2 and the formation of rotor 3, this design can
Further to improve the drilling fluid area of passage and power-conversion and transmittability of screw drilling tool motor 100, so as to further carry
The ability of the stable output high torque of high screw drilling tool motor 100.
In above-described embodiment, as shown in figure 1, the ratio between head number of rotor 3 and rubber bushing 2 is N/ (N+1), N is more than 0
Natural number.Wherein, the bar number of helix is referred to as a number on the stator of screw drilling tool motor 100 and rotor 3, in the present embodiment
Rubber bushing 2 is stator.
In above-described embodiment, rubber bushing 2 is that rubber is bonded in shape on the inwall of stator metal shell 1 by sulfuration process
Into.
In above-described embodiment, the expanding part 11 in centre of stator metal shell 1 is smooth, cylindrical peripheral surface.
Fig. 3 shows the helicoid hydraulic motor 200 provided according to the present invention, and the by-passing valve that it includes being sequentially connected from top to bottom is total
Into 10, motor assembly 20, universal axle assembly 30 and driving-shaft assembly 40, wherein, motor assembly 20 is that any of the above-described embodiment is carried
The screw drilling tool motor 100 of confession.
The principle of spiral shell driller motor foundation of the present invention is as follows：
1st, the conservation of energy principle in the displacement machine course of work：
M ω=Δ pQ is 1.
Wherein, M is the moment of torsion (unit that screw drilling tool motor is exported：Nm), ω is the rotating speed of screw drilling tool motor rotor
(unit：), rad/s Δ p is the pressure difference (unit at screw drilling tool motor outlet and entrance two ends：MPa), Q is to flow through helicoid hydraulic motor
Flow (the unit of motor：L/s).
2nd, the rotation speed relation of displacement machine：
②
Wherein, q is that the every of screw drilling tool motor rotor turns discharge capacity (unit：L), n is the rotating speed of screw drilling tool motor rotor
(unit：rad/min).
3rd, by formula 1. with formula 2. andIt can obtain：
③
By formula 3. it can be seen from when screw drilling tool motor export and entrance two ends the timing of pressure difference one, screw drilling tool motor
Output torque and screw drilling tool motor rotor every to turn discharge capacity proportional.
4 and according to the structure of screw drilling tool motor, have：
Q=ANT is 4.
Wherein：A is the area of passage of screw drilling tool motor, and N is screw drilling tool motor rotor head number, and T is helicoid hydraulic motor horse
Up to rotor pitch.
From above formula, in the case where other conditions are constant, increase screw drilling tool motor area of passage can increase screw rod
The every of driller motor rotor turns discharge capacity, and then increases the output torque of screw drilling tool motor, and proportional.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each part, connected mode etc. are all can be
Change, every equivalents carried out on the basis of technical solution of the present invention and improvement should not be excluded the present invention's
Outside protection domain.
Claims (7)
1. a kind of screw drilling tool motor, including stator metal shell, rubber bushing and rotor, it is characterised in that the stator gold
Belonging to the inner chamber of housing includes middle expanding part and the threaded connection part positioned at the expanding part two ends in the centre, and the spiral shell
The aperture of line coupling part is less than the aperture of the expanding part in the centre；The rubber bushing is arranged at the stator metal shell
The expanding part in the centre in, the rotor is arranged in the endoporus of the rubber bushing, and is mutually nibbled with the rubber bushing
Conjunction forms annular seal space.
2. a kind of screw drilling tool motor as claimed in claim 1, it is characterised in that the endoporus of the rubber bushing is continuous pendulum
Line spiral camber, the outer wall of the rotor is also a pair of continuous cycloidal helical curved surface, the rubber bushing and rotor formation
It is conjugated cycloidal engagement pair.
3. a kind of screw drilling tool motor as claimed in claim 2, it is characterised in that the head of the rotor and the rubber bushing
The ratio between number is N/ (N+1), and N is the natural number more than 0.
4. a kind of screw drilling tool motor as described in claim 1 or 2 or 3, it is characterised in that the rubber bushing is logical for rubber
Over cure technique is bonded on the inwall of the stator metal shell and formed.
5. a kind of screw drilling tool motor as described in claim 1 or 2 or 3, it is characterised in that the institute of the stator metal shell
State middle wide diameter portion and be divided into smooth, cylindrical peripheral surface.
6. a kind of screw drilling tool motor as claimed in claim 4, it is characterised in that the centre of the stator metal shell
Wide diameter portion is divided into smooth, cylindrical peripheral surface.
7. a kind of helicoid hydraulic motor, including by-pass valve assembly, motor assembly, universal axle assembly and the transmission being sequentially connected from top to bottom
Axle assembly, it is characterised in that the motor assembly is the screw drilling tool motor as any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510096676.XA CN104695853B (en) | 2015-03-04 | 2015-03-04 | A kind of screw drilling tool motor and the helicoid hydraulic motor with the motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510096676.XA CN104695853B (en) | 2015-03-04 | 2015-03-04 | A kind of screw drilling tool motor and the helicoid hydraulic motor with the motor |
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| Publication Number | Publication Date |
|---|---|
| CN104695853A CN104695853A (en) | 2015-06-10 |
| CN104695853B true CN104695853B (en) | 2017-10-13 |
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| CN201510096676.XA Active CN104695853B (en) | 2015-03-04 | 2015-03-04 | A kind of screw drilling tool motor and the helicoid hydraulic motor with the motor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107819363B (en) * | 2016-09-12 | 2020-01-07 | 中国石油天然气集团公司 | Motor stator and manufacturing method thereof |
| CN106639898B (en) * | 2017-01-04 | 2019-05-24 | 北京赛诺凤凰能源科技有限公司 | It is a kind of to cross line helicoid hydraulic motor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4823889A (en) * | 1987-08-21 | 1989-04-25 | Vsesojuzny Nauchno-Issledovatelsky Institut Burovoi Tekhniki | Downhole screw motor |
| CN101656438B (en) * | 2009-09-15 | 2013-10-02 | 江汉石油钻头股份有限公司 | Screw drilling tool motor stator |
| CN202913946U (en) * | 2012-06-15 | 2013-05-01 | 盐城市新永佳石油机械制造有限公司 | Screw drill |
| CN102777122B (en) * | 2012-08-16 | 2014-07-09 | 熊继有 | Impact screw drilling tool |
| CN103806832B (en) * | 2012-11-08 | 2016-03-09 | 中国石油天然气集团公司 | Well dynamic metal motor assembly |
| CN203742893U (en) * | 2014-03-23 | 2014-07-30 | 天津大港油田圣达科技有限公司 | Hollow motor for Zhongcheng positive displacement motor |
| CN204532058U (en) * | 2015-03-04 | 2015-08-05 | 中国海洋石油总公司 | Screw drilling tool motor and there is the helicoid hydraulic motor of this motor |
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Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |
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