CN206035378U - Screw drilling tool - Google Patents
Screw drilling tool Download PDFInfo
- Publication number
- CN206035378U CN206035378U CN201620978193.2U CN201620978193U CN206035378U CN 206035378 U CN206035378 U CN 206035378U CN 201620978193 U CN201620978193 U CN 201620978193U CN 206035378 U CN206035378 U CN 206035378U
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Abstract
The utility model provides a screw drilling tool, including the bypass valve that connects gradually, prevent falling assembly, motor, cardan shaft and transmission shaft, the bypass valve have the case and with the spring of case butt, the case can be in bypass position and closed position removal, it connects between bypass valve and motor to prevent falling the assembly, the motor includes stator and rotor, and the rotor is located the stator and intermeshing, the stator number of teeth has more one than the rotor number of teeth, the cardan shaft is connected between motor and transmission shaft for change the planetary motion of motor the fixed axis rotation of transmission shaft into, transmit for transmission shaft to drill bit with moment of torsion and the rotational speed that produces the motor, the rotor is for the cavity rotor and be provided with two through -holes along rotor lengthwise axis orientation, and the diameter of section of one of them through -hole is greater than the diameter of section of another through -hole. The utility model discloses can effectively increase the upward velocity that puddles of horsepower of drill bit, improve the work efficiency of drill bit, improve drilling speed and well drilling quality.
Description
Technical field
This utility model is related to drilling equipment field, in particular to a kind of helicoid hydraulic motor.
Background technology
With the development of petroleum natural gas exploration, increasing helicoid hydraulic motor is applied to the brill such as deep-well, ultradeep well
Well operations.Helicoid hydraulic motor (PDM drill), is a kind of with drilling fluid as power, liquid pressure energy is switched to the volume of mechanical energy
Formula mud motor.Motor is entered when the mud that slush pump is pumped out flows through bypass valve, forms certain in the import and export of motor
Pressure differential, drive rotor are rotated around the axis of stator, and rotating speed and moment of torsion are passed to drill bit by universal drive shaft and power transmission shaft, from
And realize drillng operation.But the drilling efficiency of existing helicoid hydraulic motor is lower, efficiency is difficult to be lifted, it is impossible to adapt to various multiple
Job demand under heterocycle border.The composition bottom hole assemblies such as helicoid hydraulic motor and drill bit, positioned at the bottom of whole drill string, directly
Broken rock power is provided for drill bit, mechanical rate of penetration can be effectively improved, be realized directional inclination function.
Helicoid hydraulic motor is mainly made up of bypass valve, stator, rotor, universal axle assembly, driving-shaft assembly.Wherein universal drive shaft is total
Into one of vitals for being helicoid hydraulic motor, its life-span determines helicoid hydraulic motor overall life；
Driving-shaft assembly is mainly used in transmitting the pressure of the drill, moment of torsion and drilling fluid.Existing driving-shaft assembly mainly includes transmission
Axle, transmission shaft shell, journal bearing, thrust bearings etc., power transmission shaft are supported by journal bearing and thrust bearing, and are located at transmission
In axle housing body, can rotate about the axis.Wherein journal bearing species is divided into rubber journal bearing and hard alloy journal bearing, mainly
Effect is subject to radial load, righting power transmission shaft and plays current limiter act on, wherein the drill bit of propeller shaft couplings lower drilling tool and upper
The axis body of the helicoid hydraulic motor in portion.
Utility model content
This utility model purpose is to provide a kind of new helicoid hydraulic motor, arranges the hollow of the more preferable motor assembly of performance
Axial hole on rotor, is effectively increased the upward velocity of the horsepower and mud of drill bit, improves the work efficiency of drill bit, improves drilling
Speed and drilling quality.
Technical solutions of the utility model are, a kind of helicoid hydraulic motor, including the bypass valve being sequentially connected, anti-lost assembly, motor,
Universal drive shaft and power transmission shaft, wherein：
The spring that bypass valve is had valve element and abutted with valve element, valve element can be moved in bypass position and closed position, institute
Spring offer pretightning force is provided and causes trend of the valve element jack-up in bypass position, and the pre- of spring is overcome in mud pressure
During clamp force, the valve element moves to closed position；
Anti-lost assembly is connected between bypass valve and motor；
Motor includes stator and rotor, and rotor is located in stator and is intermeshed, and leading using rotor and stator
Path difference forms helixseal line and helixseal chamber, helixseal chamber with rotor rotation and the axial movement along rotor；
The stator gear ratio rotor number of teeth is more one；
Universal drive shaft is connected between motor and power transmission shaft, and the dead axle for the planetary motion of motor to be changed into power transmission shaft turns
Dynamic, the moment of torsion and rotating speed that motor is produced passes to power transmission shaft to drill bit；
The rotor is hollow rotor and is provided with two through holes along rotor longitudinal axis direction, one of through hole
Diameter of section more than another through hole diameter of section.
In further embodiment, the stator is that pressure injection has rubber bushing on a steel pipe, and the inwall of the steel pipe.
In further embodiment, the rotor is a screw rod with chromium plating hard formation.
In further embodiment, the helix specific lobe of the stator and rotor is 6:5 or 8:7.
In further embodiment, the universal drive shaft is Petal type cardan axle or scratches shaft type universal drive shaft.
Compared with prior art, helicoid hydraulic motor of the present utility model has following remarkable advantage：Screw rod of the present utility model
Drilling tool, using the axial hole on the hollow rotor of motor assembly, can be effectively increased the upward velocity of the horsepower and mud of drill bit, carry
The work efficiency of high drill bit, improves rate of penetration and drilling quality.Simultaneously using two various sizes of through holes realize shunting and
Return in uniform coordination, further improve drilling quality.
As long as it should be appreciated that all combinations of aforementioned concepts and the extra design for describing in greater detail below are at this
A part for the utility model theme of the disclosure is can be viewed as in the case that the design of sample is not conflicting.In addition, wanted
Ask the theme of protection all combinations be considered as the disclosure utility model theme a part.
The foregoing and other side of this utility model teaching can be more fully appreciated with from the following description with reference to accompanying drawing
Face, embodiment and feature.The feature and/or beneficial effect of other additional aspects such as illustrative embodiments of the present utility model
To be obvious in the following description, or learn in the practice by the specific embodiment instructed according to this utility model.
Description of the drawings
Accompanying drawing is not intended to drawn to scale.In the accompanying drawings, identical or approximately uniform group of each for illustrating in each figure
Can be indicated by the same numeral into part.For clarity, in each figure, not each ingredient is labeled.
Now, by example and the embodiment of various aspects of the present utility model will be described in reference to the drawings, wherein：
Fig. 1 is the structural representation of helicoid hydraulic motor of the present utility model.
Fig. 2 is the cross section structure schematic diagram of motor of the present utility model.
Specific embodiment
In order to know more about technology contents of the present utility model, especially exemplified by specific embodiment and institute's accompanying drawings are coordinated to be described as follows.
Each side of the present utility model are described with reference in this utility model is disclosed, shown in the drawings of many theorys
Bright embodiment.Embodiment of the disclosure must not be intended to include all aspects of the present utility model.It should be appreciated that presented hereinbefore
Various designs and embodiment, and describe in more detail below those design and embodiment can in many ways in
Any one is implementing, this is because design disclosed in the utility model and embodiment are not limited to any embodiment.Separately
Outward, can be used alone in terms of some disclosed in this utility model, or it is otherwise any with disclosed in this utility model
It is appropriately combined using.
With reference to shown in Fig. 1, a kind of new helicoid hydraulic motor, including the bypass valve 1, anti-lost assembly 2, motor 3 being sequentially connected,
Universal drive shaft 4 and power transmission shaft 5.
Bypass valve 1 has valve element 11 and the spring 12 abutted with valve element, and valve element can be moved in bypass position and closed position
Dynamic, the spring provides pretightning force and causes trend of 11 jack-up of the valve element in bypass position, and overcomes in mud pressure
During the pretightning force of spring, the valve element moves to closed position.
Anti-lost assembly 2 is connected between bypass valve 1 and motor 3.
With reference to shown in Fig. 1 and Fig. 2, motor 3 includes stator 31 and rotor 32, and rotor 32 is located in stator 31 and mutually nibbles
Close, and the helical pitch difference using rotor 32 and stator 31 forms helixseal line and helixseal chamber, helixseal chamber is with turning
Son rotation and the axial movement along rotor；The stator gear ratio rotor number of teeth is more one.
Universal drive shaft 4 is connected between motor 3 and power transmission shaft 5, for the planetary motion of motor is changed into determining for power transmission shaft
Axle is rotated, and the moment of torsion and rotating speed that motor is produced passes to power transmission shaft to drill bit, to drive drill bit drilling operation, while transmission
Axle will also bear the radial and axial load produced by drill bit drilling.
The rotor 32 is hollow rotor and is provided with two through holes along rotor longitudinal axis direction, with reference to Fig. 2 institutes
Show, the diameter of section of one of through hole is more than the diameter of section of another through hole.
In some instances, stator 31 is that pressure injection has rubber bushing on a steel pipe, and the inwall of the steel pipe.The rubber
The endoporus formed by glue bushing is presented helical form.
Rotor 32 is a screw rod with chromium plating hard formation.
Preferably, the helix specific lobe of stator and rotor is 6:5 or 8:7, the head number of rotor is fewer, and rotating speed is higher,
Moment of torsion is less.
Universal drive shaft 4 is Petal type cardan axle or scratches shaft type universal drive shaft.
With reference to shown in Fig. 1, Fig. 2, rotor 32 forms helixseal line and helixseal chamber, spiral with the helical pitch difference of stator 31
Annular seal space with rotor rotation and the axial movement along rotor, constantly generate and disappearance, complete energy conversion.
Although this utility model is disclosed above with preferred embodiment, so which is not limited to this utility model.This reality
New those of ordinary skill in the art is used, it is in without departing from spirit and scope of the present utility model, each when making
The change planted and retouching.Therefore, protection domain of the present utility model is worked as and is defined depending on those as defined in claim.
Claims (5)
1. a kind of helicoid hydraulic motor, it is characterised in that including the bypass valve being sequentially connected, anti-lost assembly, motor, universal drive shaft and biography
Moving axis, wherein：
The spring that bypass valve is had valve element and abutted with valve element, valve element can be moved in bypass position and closed position, the bullet
Spring provides pretightning force and causes trend of the valve element jack-up in bypass position, and overcomes the pretightning force of spring in mud pressure
Shi Suoshu valve elements move to closed position；
Anti-lost assembly is connected between bypass valve and motor；
Motor includes stator and rotor, and rotor is located in stator and is intermeshed, and poor with the helical pitch of stator using rotor
Form helixseal line and helixseal chamber, helixseal chamber with rotor rotation and the axial movement along rotor；Stator
The gear ratio rotor number of teeth is more one；
Universal drive shaft is connected between motor and power transmission shaft, for the planetary motion of motor to be changed into the fixed-axis rotation of power transmission shaft,
Power transmission shaft is passed to drill bit with the moment of torsion and rotating speed that produce motor；
The rotor is hollow rotor to be provided with two through holes along rotor longitudinal axis direction, and one of through hole cuts
Diameter of section of the face with diameter greater than another through hole.
2. helicoid hydraulic motor according to claim 1, it is characterised in that the stator is a steel pipe, and the steel pipe
On inwall, pressure injection has rubber bushing, and the endoporus formed by rubber bushing is presented helical form.
3. helicoid hydraulic motor according to claim 1, it is characterised in that the rotor is a spiral shell with chromium plating hard formation
Bar.
4. helicoid hydraulic motor according to claim 1, it is characterised in that the helix specific lobe of the stator and rotor is 6:
5 or 8:7.
5. helicoid hydraulic motor according to claim 1, it is characterised in that the universal drive shaft is Petal type cardan axle or scratches axle
Formula universal drive shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620978193.2U CN206035378U (en) | 2016-08-29 | 2016-08-29 | Screw drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620978193.2U CN206035378U (en) | 2016-08-29 | 2016-08-29 | Screw drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206035378U true CN206035378U (en) | 2017-03-22 |
Family
ID=58302305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620978193.2U Active CN206035378U (en) | 2016-08-29 | 2016-08-29 | Screw drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206035378U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060638A (en) * | 2017-04-14 | 2017-08-18 | 奥瑞拓能源科技股份有限公司 | Change the power set of drill bit movement |
| CN107299825A (en) * | 2017-07-11 | 2017-10-27 | 西北工业大学 | A kind of inertial confinement induction drilling apparatus with PDC drill bit |
| CN108086922A (en) * | 2017-12-30 | 2018-05-29 | 贵州高峰石油机械股份有限公司 | A kind of method for improving helicoid hydraulic motor performance and super helicoid hydraulic motor |
| CN109973009A (en) * | 2019-04-08 | 2019-07-05 | 海油来博(天津)科技股份有限公司 | Multistage anti-sticking hydraulic motor |
| CN110410011A (en) * | 2019-08-03 | 2019-11-05 | 盐城市东荣石油机械有限公司 | It is a kind of with prevent bit port block helicoid hydraulic motor |
| CN110685601A (en) * | 2018-07-06 | 2020-01-14 | 中国石油化工股份有限公司 | Guide screw for drilling tool |
| CN112523680A (en) * | 2020-11-30 | 2021-03-19 | 中国石油天然气集团有限公司 | Motor rotor axial vibration compensation mechanism and central wire passing method |
| CN114673444A (en) * | 2022-03-31 | 2022-06-28 | 中国石油大学(北京) | Flexible screw drilling tool and drilling method |
-
2016
- 2016-08-29 CN CN201620978193.2U patent/CN206035378U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107060638A (en) * | 2017-04-14 | 2017-08-18 | 奥瑞拓能源科技股份有限公司 | Change the power set of drill bit movement |
| CN107060638B (en) * | 2017-04-14 | 2023-09-26 | 奥瑞拓能源科技股份有限公司 | Power device for changing drill bit movement |
| CN107299825A (en) * | 2017-07-11 | 2017-10-27 | 西北工业大学 | A kind of inertial confinement induction drilling apparatus with PDC drill bit |
| CN107299825B (en) * | 2017-07-11 | 2019-01-04 | 西北工业大学 | A kind of inertial confinement induction drilling apparatus of adjoint PDC drill bit |
| CN108086922A (en) * | 2017-12-30 | 2018-05-29 | 贵州高峰石油机械股份有限公司 | A kind of method for improving helicoid hydraulic motor performance and super helicoid hydraulic motor |
| CN110685601A (en) * | 2018-07-06 | 2020-01-14 | 中国石油化工股份有限公司 | Guide screw for drilling tool |
| CN109973009A (en) * | 2019-04-08 | 2019-07-05 | 海油来博(天津)科技股份有限公司 | Multistage anti-sticking hydraulic motor |
| CN109973009B (en) * | 2019-04-08 | 2024-03-22 | 海油来博(天津)科技股份有限公司 | Multistage anti-sticking hydraulic motor |
| CN110410011A (en) * | 2019-08-03 | 2019-11-05 | 盐城市东荣石油机械有限公司 | It is a kind of with prevent bit port block helicoid hydraulic motor |
| CN112523680A (en) * | 2020-11-30 | 2021-03-19 | 中国石油天然气集团有限公司 | Motor rotor axial vibration compensation mechanism and central wire passing method |
| CN112523680B (en) * | 2020-11-30 | 2022-07-19 | 中国石油天然气集团有限公司 | Motor rotor axial vibration compensation mechanism and central wire passing method |
| CN114673444A (en) * | 2022-03-31 | 2022-06-28 | 中国石油大学(北京) | Flexible screw drilling tool and drilling method |
| CN114673444B (en) * | 2022-03-31 | 2024-02-13 | 中国石油大学(北京) | Flexible screw drilling tool and drilling method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |