CN205977089U - Screw rod drilling tool that shocks resistance - Google Patents
Screw rod drilling tool that shocks resistance Download PDFInfo
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- CN205977089U CN205977089U CN201620988094.2U CN201620988094U CN205977089U CN 205977089 U CN205977089 U CN 205977089U CN 201620988094 U CN201620988094 U CN 201620988094U CN 205977089 U CN205977089 U CN 205977089U
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- transmission shaft
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Abstract
The utility model provides a screw rod drilling tool that shocks resistance, substitute joint, motor assembly, cardan shaft assembly and transmission shaft assembly including what connect gradually, wherein: the transmission shaft assembly includes casing, lower casing and transmission shaft, goes up the clad structure that the combination of casing and inferior valve body coupling constitutes the transmission shaft assembly, the transmission shaft crosses clad structure, this transmission shaft construct into the four -stage step shaft that an external diameter reduces gradually, have the first shaft part, second shaft part, third shaft part and the fourth shaft part that set gradually, the outer peripheral surface cover of second shaft part is equipped with first quiet journal bearing, the first journal bearing of moving and lies in the first bolster between the two, the outer peripheral surface of fourth shaft part cover is equipped with the quiet journal bearing of second, the second moves journal bearing and is located the second bolster between the two, the outer peripheral surface cover of third shaft part is equipped with thrust bearing.
Description
Technical field
This utility model is related to drilling equipment field, in particular to a kind of shock proof helicoid hydraulic motor.
Background technology
Helicoid hydraulic motor (PDM drill), be a kind of with drilling fluid as power, liquid pressure energy is switched to the volume of mechanical energy
Formula mud motor.Enter motor when the mud that slush pump pumps out flows through bypass valve, formed in the import and export of motor certain
Pressure differential, drive rotor rotates 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 multiple 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
There is provided broken rock power for drill bit, can effectively improve mechanical rate of penetration, realize directional inclination function.
Helicoid hydraulic motor is mainly made up of bypass valve, stator, rotor, universal axle assembly, driving-shaft assembly.Drilling and
Drill bit is depressed in wammel, is crept into, especially rifler is by cutter teeth in the case of exporting big torque by drilling tool
Constantly rock crushing to be being crept into, and just creates vibrations and impacts in carbon stone broken moment that is stressed.In gravel layer or hard
Degree is big and has often show in firm poor bottom especially prominent, or even bouncing of drilling tool phenomenon.Can produce if there is bouncing of drilling tool
Raw resonant interaction, can make thousands of meters of drill rod boring tool beat together, very big to drilling rod, drilling tool, drill bit destructive power.Vibrations can be to well
Wall causes larger destructive power it may occur that caving in fast.Fall fast accumulation in a large number and can produce the down-hole accidents such as bit freezing.Existing screw rod
Drilling tool holds and mainly bears drilling pressure by string bearing.
Universal joint is hit, and infringement is equally larger, and impact is easily caused the damage of petal and steel ball, decreases normal use
Life-span.Also easily because impact endurance test shock occurs to loosen and opens button, fall each junction button of drilling tool well accident.
Utility model content
This utility model purpose is to provide a kind of shock proof helicoid hydraulic motor, mitigates or eliminates in drilling process
Bouncing of drilling tool and impact shock, reduce the infringement to drilling tool and drill bit, improve the service life of drilling tool.
Technical solutions of the utility model are that a kind of shock proof helicoid hydraulic motor, including the alternative joint being sequentially connected, motor
Assembly, universal axle assembly and driving-shaft assembly, wherein：
Alternative joint is threadedly attached to motor assembly；
Motor assembly includes stator and rotor, and rotor is located in stator and engages each other, and utilizes rotor and stator
Helical pitch difference form helixseal line and helixseal chamber, helixseal chamber with rotor rotation and the axial direction along rotor is moved
Dynamic；Many one of the stator gear ratio rotor number of teeth；
Universal axle assembly is connected between motor assembly and driving-shaft assembly, for the planetary motion exporting motor assembly
It is changed into the fixed-axis rotation of driving-shaft assembly, the moment of torsion that produce motor assembly and rotating speed pass to driving-shaft assembly and transmit
To drill bit；
Described driving-shaft assembly includes upper shell, lower house and power transmission shaft, and upper shell and lower house connect combination and constitute biography
The clad structure of moving axis assembly, described power transmission shaft crosses described clad structure, and described power transmission shaft defines for connecting drill bit
First end and the second end for connecting universal axle assembly, this power transmission shaft is configured to one from first end to the second end external diameter gradually
The four-part form multidiameter reducing, has the first shaft part setting gradually, the second shaft part, the 3rd shaft part and the 4th shaft part, and described the
It is slow that the external peripheral surface of two shaft parts is arranged with the first quiet journal bearing, the first dynamic journal bearing and positioned there between first
Stamping；The external peripheral surface of described 4th shaft part is arranged with the second quiet journal bearing, the second dynamic journal bearing and is located at the two it
Between the second bolster；The external peripheral surface of described 3rd shaft part is arranged with thrust bearing.
In further embodiment, the described outer peripheral face of the first quiet journal bearing and the internal face friction of described lower house are joined
Close, the outer peripheral face of the second quiet journal bearing internal face frictional fit all with described upper shell.
In further embodiment, the described first dynamic journal bearing and the second dynamic journal bearing, the first quiet journal bearing and
Second quiet journal bearing is hard alloy bearing.
In further embodiment, described first bolster and the second bolster are spring.
In further embodiment, described first bolster and the second bolster are flat stage clip.
In further embodiment, described first bolster and the second bolster are all made up of multigroup flat stage clip
Spring assembly.
The helicoid hydraulic motor of card impact of the present utility model, can mitigate or eliminate the bouncing of drilling tool in drilling process and impact is shaken
Dynamic, reduce the infringement to drilling tool and drill bit, improve the service life of drilling tool, and increased safety and the drilling well speed of drilling
Degree.
As long as it should be appreciated that all combinations of aforementioned concepts and the extra design 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, being 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 conjunction with accompanying drawing from the following description
Face, embodiment and feature.The feature of other additional aspect such as illustrative embodiments of the present utility model and/or beneficial effect
To be obvious in the following description, or learn in the practice by the specific embodiment according to this utility model teaching.
Brief description
Accompanying drawing is not intended to drawn to scale.In the accompanying drawings, identical or approximately uniform group of each illustrating in each figure
One-tenth partly can be indicated by the same numeral.For clarity, in each figure, not each ingredient is all labeled.
Now, by by example and the embodiment of of the present utility model various aspects is described in reference to the drawings, wherein：
Fig. 1 is the structural representation of shock proof helicoid hydraulic motor of the present utility model.
Fig. 2 is the structural representation of the driving-shaft assembly of shock proof helicoid hydraulic 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 coordinate institute's accompanying drawings to be described as follows.
It is described with reference to each side of the present utility model in the disclosure, shown in the drawings of the enforcement of many explanations
Example.Embodiment of the disclosure must not be intended to including all aspects of the present utility model.It should be appreciated that multiple structures presented hereinbefore
Think and embodiment, and describe in more detail below those design and embodiment can in many ways in any one
To implement, this is because design disclosed in the utility model and embodiment are not limited to any embodiment.In addition, this practicality
New some aspects disclosed can be used alone, or otherwise any appropriately combined next with disclosed in this utility model
Use.
In conjunction with Fig. 1, Fig. 2, a kind of shock proof helicoid hydraulic motor, including the alternative joint 1 being sequentially connected, motor assembly 2, ten thousand
To axle assembly 3 and driving-shaft assembly 4.
Alternative joint 1 is threadedly attached to motor assembly 2.
Motor assembly 2 includes stator and rotor, and rotor is located in stator and engages each other, and utilizes rotor and stator
Helical pitch difference form helixseal line and helixseal chamber, helixseal chamber with rotor rotation and the axial direction along rotor is moved
Dynamic；Many one of the stator gear ratio rotor number of teeth.The such as stator number of teeth and the rotor number of teeth are 8:7.
Universal axle assembly 3 is connected between motor assembly 2 and driving-shaft assembly 4, for the planet exporting motor assembly
Motion is changed into the fixed-axis rotation of driving-shaft assembly, and the moment of torsion that produce motor assembly and rotating speed pass to driving-shaft assembly again
It is transferred to drill bit.
Universal axle assembly 3 includes the shell of a scalable camber and the universal joint being located inside the shell, connects to horse
Reach assembly.
In conjunction with Fig. 2, described driving-shaft assembly 4 includes upper shell 41, lower house 42 and power transmission shaft 43, upper shell 41 and lower casing
Body 42 connects the clad structure that combination constitutes driving-shaft assembly, and described power transmission shaft 43 crosses described clad structure.
Described power transmission shaft 43 defines first end 43A for connecting drill bit and the second end for connecting universal axle assembly
43B, this power transmission shaft is configured to a four-part form multidiameter being gradually reduced from first end to the second end external diameter, has and sets gradually
The first shaft part 43-1, the second shaft part 43-2, the 3rd shaft part 43-3 and the 4th shaft part 43-4, described second shaft part 43-2's is cylindrical
Perimeter surface is arranged with the first quiet journal bearing 51A, the first dynamic journal bearing 51B and the first bolster positioned there between
51C；The external peripheral surface of described 4th shaft part 43-4 is arranged with the second quiet journal bearing 52A, the second dynamic journal bearing 52B and position
In the second bolster 52C therebetween；The external peripheral surface of described 3rd shaft part 43-3 is arranged with thrust bearing 53.
The outer peripheral face of described first quiet journal bearing 51A and the internal face frictional fit of described lower house 42, the second quiet footpath
The internal face frictional fit all with described upper shell 41 for the outer peripheral face to bearing 52A.
Preferably, the described first dynamic journal bearing and the second dynamic journal bearing, the first quiet journal bearing and the second quiet radial direction
Bearing is hard alloy bearing.
Preferably, described first bolster 51C and the second bolster 52C is spring.
In further embodiment, described first bolster 51C and the second bolster 52C are flat stage clip.
In further embodiment, described first bolster 51C and the second bolster 52C is all by multigroup flat stage clip
The spring assembly constituting.
Although this utility model is disclosed above with preferred embodiment, so it is not limited to this utility model.This reality
Use new those of ordinary skill in the art, 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 (6)
1. a kind of shock proof helicoid hydraulic motor it is characterised in that include be sequentially connected alternative joint, motor assembly, universal drive shaft
Assembly and driving-shaft assembly, wherein：
Alternative joint is threadedly attached to motor assembly；
Motor assembly includes stator and rotor, and rotor is located in stator and engages each other, and leading using rotor and stator
Path difference forms helixseal line and helixseal chamber, the axial movement along rotor with the rotation of rotor of helixseal chamber；
Many one of the stator gear ratio rotor number of teeth；
Universal axle assembly is connected between motor assembly and driving-shaft assembly, and the planetary motion for exporting motor assembly changes
For the fixed-axis rotation of driving-shaft assembly, the moment of torsion that produce motor assembly and rotating speed pass to driving-shaft assembly and are transferred to bore again
Head；
Described driving-shaft assembly includes upper shell, lower house and power transmission shaft, and upper shell and lower house connect combination and constitute power transmission shaft
The clad structure of assembly, described power transmission shaft crosses described clad structure, described power transmission shaft define for connect drill bit first
End and the second end for connecting universal axle assembly, this power transmission shaft is configured to one and is gradually reduced to the second end external diameter from first end
Four-part form multidiameter, there is the first shaft part setting gradually, the second shaft part, the 3rd shaft part and the 4th shaft part, described second axle
The external peripheral surface of section is arranged with the first quiet journal bearing, the first dynamic journal bearing and the positioned there between first buffering
Part；The external peripheral surface of described 4th shaft part is arranged with the second quiet journal bearing, the second dynamic journal bearing and positioned there between
The second bolster；The external peripheral surface of described 3rd shaft part is arranged with thrust bearing.
2. shock proof helicoid hydraulic motor according to claim 1 is it is characterised in that the periphery of described first quiet journal bearing
Face and the internal face frictional fit of described lower house, the outer peripheral face of the second quiet journal bearing is all rubbed with the internal face of described upper shell
Wipe cooperation.
3. shock proof helicoid hydraulic motor according to claim 1 is it is characterised in that described first moves journal bearing and second
Dynamic journal bearing, the first quiet journal bearing and the second quiet journal bearing are hard alloy bearing.
4. shock proof helicoid hydraulic motor according to claim 1 is it is characterised in that described first bolster and second buffers
Part is spring.
5. shock proof helicoid hydraulic motor according to claim 1 is it is characterised in that described first bolster and second buffers
Part is flat stage clip.
6. shock proof helicoid hydraulic motor according to claim 1 is it is characterised in that described first bolster and second buffers
Part is all the spring assembly being made up of multigroup flat stage clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620988094.2U CN205977089U (en) | 2016-08-29 | 2016-08-29 | Screw rod drilling tool that shocks resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620988094.2U CN205977089U (en) | 2016-08-29 | 2016-08-29 | Screw rod drilling tool that shocks resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977089U true CN205977089U (en) | 2017-02-22 |
Family
ID=58041653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620988094.2U Active CN205977089U (en) | 2016-08-29 | 2016-08-29 | Screw rod drilling tool that shocks resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977089U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115584938A (en) * | 2022-12-12 | 2023-01-10 | 沧州格锐特钻头有限公司 | Impact-resistant screw drill |
-
2016
- 2016-08-29 CN CN201620988094.2U patent/CN205977089U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115584938A (en) * | 2022-12-12 | 2023-01-10 | 沧州格锐特钻头有限公司 | Impact-resistant screw drill |
| CN115584938B (en) * | 2022-12-12 | 2023-02-17 | 沧州格锐特钻头有限公司 | Impact-resistant screw drill |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |