CN201090158Y - Friction assembly - Google Patents
Friction assembly Download PDFInfo
- Publication number
- CN201090158Y CN201090158Y CNU2007200292448U CN200720029244U CN201090158Y CN 201090158 Y CN201090158 Y CN 201090158Y CN U2007200292448 U CNU2007200292448 U CN U2007200292448U CN 200720029244 U CN200720029244 U CN 200720029244U CN 201090158 Y CN201090158 Y CN 201090158Y
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- CN
- China
- Prior art keywords
- cantilever
- main body
- lath
- diameter
- springs
- 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 - Fee Related
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Abstract
Disclosed is a friction assembly, which has a main body and cantilever lath springs, one end of each cantilever lath spring is in a free state, and the other end thereof is distributed and arranged on the main body. The outside diameter of the main body is smaller than the inside diameter of a casing, the axial lines of the cantilever lath springs and the axial line of the main body form an included angle, then the diameter of a circle connected by a plurality of free ends of the cantilever lath springs is larger than the diameter of a circle connected by fixed ends thereof, the diameter of the circle connected by the plurality of free ends of the cantilever lath springs is also larger than the inside diameter of the casing, then the free ends of the cantilever lath springs can cling to the inner wall of the casing, thus producing the friction force with the casing. Slant holes having the same number with the cantilever lath springs are drilled on the main body, a ring groove is disposed at the outside of the main body, the cantilever lath springs are inserted into the slant holes of the main body, and the cantilever lath springs are welded on the main body from the ring groove of the main body. The utility model has advantages of simple structure, easy processing and low manufacturing cost.
Description
One, technical field
The utility model is a kind of device on the downhole tool of oil field oil recovery usefulness, is a kind of rubbing device.
Two, background technology
On the downhole tool of the oil field oil recovery usefulness that has rubbing device has been installed, as rubbing device is all arranged on the packers such as Y211, Y221, the brake pad external diameter on the rubbing device can change with casing inner diameter greater than sleeve pipe, can remove smoothly.The effect of rubbing device is to produce axial force or radial load, temporary transient fixing some parts on the downhole tool, the ground rotation or on when putting drain line, make some parts on the downhole tool produce relative motion, make its instrument in running order.Existing rubbing device as shown in Figure 1.There is complex structure in this rubbing device, the deficiency that manufacturing cost is high.
Three, summary of the invention
The purpose of this utility model provides a kind of simple in structure, the rubbing device of low cost of manufacture.
The purpose of this utility model has been achieved in that main body, cantilever lath spring, and cantilever lath spring one end is in free state, and the other end distributes and is installed on the main body.
The axis of cantilever lath spring and the axis of main body have angle, the diameter of a circle that the diameter of a circle that several cantilever lath spring free ends are linked to be is linked to be greater than fixed end.
Be equipped with the inclined hole that equates with cantilever lath spring quantity on the main body, be provided with annular groove in the outside of main body, cantilever lath spring inserts in the inclined hole of main body, from the annular groove of main body cantilever lath spring is welded on the main body.
The beneficial effects of the utility model are: simple in structure, be convenient to processing, low cost of manufacture.
Four, description of drawings
Fig. 1 is a kind of assembling drawing of existing rubbing device.
Fig. 2 is the assembling drawing of the utility model embodiment.
Five, the specific embodiment
3 couples of embodiment of the present utility model describe below in conjunction with accompanying drawing.
The cross section of the cantilever lath spring 2 in the utility model can be circle, rectangle, circular arc.
Claims (3)
1. rubbing device, it is characterized in that: main body (1), cantilever lath spring (2) are arranged, and cantilever lath spring (2) one ends are in free state, and the other end distributes and is installed on the main body (1).
2. rubbing device according to claim 1 is characterized in that: the axis of the axis of cantilever lath spring (2) and main body (1) has angle, the diameter of a circle that the diameter of a circle that several cantilever lath springs (2) free end is linked to be is linked to be greater than fixed end.
3. rubbing device according to claim 1, it is characterized in that: be equipped with the inclined hole that equates with cantilever lath spring (2) quantity on the main body (1), outside in main body (1) is provided with annular groove, cantilever lath spring (2) inserts in the inclined hole of main body (1), from the annular groove of main body (1) cantilever lath spring (2) is welded on the main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200292448U CN201090158Y (en) | 2007-10-16 | 2007-10-16 | Friction assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200292448U CN201090158Y (en) | 2007-10-16 | 2007-10-16 | Friction assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090158Y true CN201090158Y (en) | 2008-07-23 |
Family
ID=39861918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200292448U Expired - Fee Related CN201090158Y (en) | 2007-10-16 | 2007-10-16 | Friction assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090158Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158275B (en) * | 2007-10-16 | 2011-02-16 | 白霞 | Friction device |
-
2007
- 2007-10-16 CN CNU2007200292448U patent/CN201090158Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101158275B (en) * | 2007-10-16 | 2011-02-16 | 白霞 | Friction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20091116 |