CN201887585U - Silt preventor for downhole instrument driving motor - Google Patents
Silt preventor for downhole instrument driving motor Download PDFInfo
- Publication number
- CN201887585U CN201887585U CN2010206391260U CN201020639126U CN201887585U CN 201887585 U CN201887585 U CN 201887585U CN 2010206391260 U CN2010206391260 U CN 2010206391260U CN 201020639126 U CN201020639126 U CN 201020639126U CN 201887585 U CN201887585 U CN 201887585U
- Authority
- CN
- China
- Prior art keywords
- antiscale
- downhole instrument
- pedestal
- drive motors
- silt
- 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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a silt preventor for a downhole instrument driving motor, comprising a base (8), wherein the base (8) is provided with an antiscale sleeve (3) connected with the base (8) through a fastening piece (10), and an antiscale O ring (2) is installed in the antiscale sleeve (3). In the utility model, the base and a moving outputting assembly are additionally provided with one antiscale sleeve provided with the antiscale O ring, and silt containing hard impurities is prevented from entering into a transmission mechanism of the driving motor through the antiscale O ring, thereby greatly reducing the influence of the silt containing hard impurities on the transmission mechanism of the motor, prolonging the working life of the transmission mechanism, increasing the work efficiency and improving the working reliability of instruments.
Description
Technical field
The utility model relates to the anti-silt device that a kind of downhole instrument drive motors is used, and belongs to the anti-silt technical field of downhole instrument.
Background technology
Motor is as the executive component of downhole instrument.Long-term work is at the down-hole high temperature and high pressure environment; and the down-hole also has some silts that are made of hard impurity, and the transmission mechanism of motor is subjected to the erosion that these contain the silt of hard impurity through regular meeting, has had a strong impact on the working life of transmission mechanism; and inefficiency, poor reliability.
Summary of the invention
The purpose of this utility model is, the anti-silt device that provides a kind of downhole instrument drive motors to use, this device can prevent that the silt of down-hole hard impurity formation from entering the transmission mechanism of motor, can prolong the working life of transmission mechanism, has high efficiency, the characteristics of good reliability are to overcome the deficiencies in the prior art.
The technical solution of the utility model: the anti-silt device that a kind of downhole instrument drive motors is used, comprise pedestal, pedestal is provided with the antiscale cover, and the antiscale cover is connected with pedestal through securing member, and antiscale O shape circle is housed in the antiscale cover.
In the anti-silt device that aforementioned downhole instrument drive motors is used, described antiscale cover endoporus and motion output precision are slidingly connected, and the fit clearance of antiscale cover endoporus and motion output precision is 0.15～0.25mm.
In the anti-silt device that aforementioned downhole instrument drive motors is used, described antiscale O shape circle is made with acrylonitrile-butadiene rubber or fluorubber material.
In the anti-silt device that aforementioned downhole instrument drive motors is used, the compression ratio of described antiscale O shape circle is 5%～10%.
In the anti-silt device that aforementioned downhole instrument drive motors is used, described motion output precision is threaded with drive screw, and drive screw is connected with electric machine main shaft.
In the anti-silt device that aforementioned downhole instrument drive motors is used, described electric machine main shaft is connected with pedestal through sealing device.
In the anti-silt device that aforementioned downhole instrument drive motors is used, described pedestal is provided with limit sliding chutes, and described motion output precision is provided with stop pin, and stop pin is positioned at limit sliding chutes.
In the anti-silt device that aforementioned downhole instrument drive motors is used, the limit sliding chutes two ends on the described pedestal are provided with cover plate, and cover plate is connected with pedestal through screw.
In the anti-silt device that aforementioned downhole instrument drive motors is used, described drive screw, antiscale cover and the motion output precision trade mark are that the stainless steel of 0Cr17Ni4Cu4Nb is made.
Compared with prior art, the utility model has increased an antiscale cover at pedestal and motion output precision, antiscale is arranged with antiscale O shape circle, stop that by antiscale O shape circle the silt that contains hard impurity enters the transmission mechanism of drive motors, reduced the influence of the silt that contains hard impurity greatly to motor transmission mechanism, prolong the working life of transmission mechanism, and can increase work efficiency, improved the functional reliability of instrument.Specifically when implementing, pedestal endoporus and antiscale cover cylindrical adopt little matched in clearance, guaranteed the balance of antiscale O shape circle pressure at both sides, can prevent effectively that again hard impurity such as silt from entering thread transmission from the motion output precision, improved transmission efficiency, life-span and reliability; Drive screw, antiscale cover and motion output precision etc. adopt the stainless steel material (trade mark 0Cr17Ni4Cu4Nb) that Corrosion Protection is better, intensity is high to make; Antiscale O shape circle adopts the acrylonitrile-butadiene rubber or the fluorubber material of the oil resistant aqueous corrosion of high temperature resistant, grease proofing aqueous corrosion better performances to make, and can prevent to occur because of problems such as failure mechanisms, transmission efficiency that corrosion causes are low.Device of the present utility model is applicable under adverse circumstances the protection to motor transmission mechanism.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Being labeled as in the accompanying drawing: 1-motion output precision, 2-antiscale O shape circle, 3-antiscale cover, 4-cover plate, 5-drive screw, 6-sealing device, 7-electric machine main shaft, 8-pedestal, 9-stop pin, 10-securing member, 11-limit sliding chutes.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, but not as to any restriction of the present utility model.
Embodiment.The utility model as shown in Figure 1.The anti-silt device that a kind of downhole instrument drive motors is used comprises pedestal 8, and pedestal 8 is provided with antiscale cover 3, and antiscale cover 3 is connected with pedestal 8 through securing member 10, and antiscale is overlapped and antiscale O shape is housed in 3 is enclosed 2.3 endoporus are overlapped in described antiscale and motion output precision 1 is slidingly connected, and the fit clearance that 3 endoporus and motion output precision 1 are overlapped in antiscale is 0.15～0.25mm.Described antiscale O shape circle 2 usefulness acrylonitrile-butadiene rubbers or fluorubber material are made.The compression ratio of described antiscale O shape circle 2 is 5%～10%.Described motion output precision 1 is threaded with drive screw 5, and drive screw 5 is connected with electric machine main shaft 7.Described electric machine main shaft 7 is connected with pedestal 8 through sealing device.Described pedestal 8 is provided with limit sliding chutes 11, and described motion output precision 1 is provided with stop pin 9, and stop pin 9 is positioned at limit sliding chutes 11.Limit sliding chutes 11 two ends on the described pedestal 8 are provided with cover plate 4, and cover plate is connected with pedestal 8 through screw.Described drive screw 5, antiscale cover 3 and the motion output precision 1 usefulness trade mark are that the stainless steel of 0Cr17Ni4Cu4Nb is made.
The utility model course of work and principle
As shown in Figure 1, drive screw 5 right-hand members link to each other with electric machine main shaft 7 by sealing device 6, and drive screw 5 left ends and motion output precision 1 are by being threaded.Stop pin 9 is installed on the motion output precision 1, and stop pin 9 can slide in the groove on the pedestal 8.When electric machine main shaft 7 drives drive screw 5 rotations, under the effect of stop pin 9 and pedestal 8, realized the linear reciprocating motion of motion output precision 1 under certain stroke.Pedestal 8 endoporus and antiscale are overlapped 3 cylindricals and are adopted little matched in clearance, and antiscale cover 3 usefulness securing members 10 are fixed on the pedestal 8, prevent axial motion.Cover plate 4 and the little matched in clearance in pedestal 8 planes, and adopt screw 11 fixing.Antiscale is overlapped 3 endoporus and is adopted big gap 0.2mm to cooperate with motion output precision 1 cylindrical.Antiscale O shape circle 2 is housed in the antiscale cover 3, and antiscale O shape circle 2 is designed to little compressible 5%～10%, with the resistance of reducing friction.Antiscale O shape circle 2 adopts acrylonitrile-butadiene rubber or fluorubber made, high temperature resistant, grease proofing aqueous corrosion better performances.The employing stainless steel material trade mark 0Cr17Ni4Cu4Nb that Corrosion Protection is better, intensity is high manufacturings such as 3 motion output precisions 1 are overlapped in drive screw 5, antiscale.
Claims (9)
1. anti-silt device that the downhole instrument drive motors is used, comprise pedestal (8), it is characterized in that: pedestal (8) is provided with antiscale cover (3), and antiscale cover (3) is connected with pedestal (8) through securing member (10), and antiscale O shape circle (2) is housed in the antiscale cover (3).
2. the anti-silt device of using according to the described downhole instrument drive motors of claim 1, it is characterized in that: described antiscale cover (3) endoporus and motion output precision (1) are slidingly connected, and the fit clearance of antiscale cover (3) endoporus and motion output precision (1) is 0.15～0.25mm.
3. the anti-silt device of using according to the described downhole instrument drive motors of claim 1 is characterized in that: described antiscale O shape circle (2) is made with acrylonitrile-butadiene rubber or fluorubber material.
4. the anti-silt device of using according to the described downhole instrument drive motors of claim 3 is characterized in that: the compression ratio of described antiscale O shape circle (2) is 5%～10%.
5. the anti-silt device of using according to the described downhole instrument drive motors of claim 2, it is characterized in that: described motion output precision (1) is threaded with drive screw (5), and drive screw (5) is connected with electric machine main shaft (7).
6. the anti-silt device of using according to the described downhole instrument drive motors of claim 5, it is characterized in that: described electric machine main shaft (7) is connected with pedestal (8) through sealing device.
7. the anti-silt device of using according to the described downhole instrument drive motors of claim 1, it is characterized in that: described pedestal (8) is provided with limit sliding chutes (11), described motion output precision (1) is provided with stop pin (9), and stop pin (9) is positioned at limit sliding chutes (11).
8. the anti-silt device of using according to the described downhole instrument drive motors of claim 7, it is characterized in that: limit sliding chutes (11) two ends on the described pedestal (8) are provided with cover plate (4), and cover plate is connected with pedestal (8) through screw.
9. the anti-silt device of using according to the described downhole instrument drive motors of the arbitrary claim of claim 1～8 is characterized in that: described drive screw (5), antiscale cover (3) and motion output precision (1) are that the stainless steel of 0Cr17Ni4Cu4Nb is made with the trade mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206391260U CN201887585U (en) | 2010-12-03 | 2010-12-03 | Silt preventor for downhole instrument driving motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206391260U CN201887585U (en) | 2010-12-03 | 2010-12-03 | Silt preventor for downhole instrument driving motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201887585U true CN201887585U (en) | 2011-06-29 |
Family
ID=44185130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206391260U Expired - Lifetime CN201887585U (en) | 2010-12-03 | 2010-12-03 | Silt preventor for downhole instrument driving motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201887585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173234A (en) * | 2019-03-27 | 2019-08-27 | 大庆吉庆雨科技开发有限公司 | It is a kind of to expand the automatic drainage device of formula certainly |
-
2010
- 2010-12-03 CN CN2010206391260U patent/CN201887585U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173234A (en) * | 2019-03-27 | 2019-08-27 | 大庆吉庆雨科技开发有限公司 | It is a kind of to expand the automatic drainage device of formula certainly |
| CN110173234B (en) * | 2019-03-27 | 2024-04-19 | 大庆吉庆雨科技开发有限公司 | Self-expanding automatic oil drainage device |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110629 |