CN2401692Y - Automatically sealed polish and packing device - Google Patents
Automatically sealed polish and packing device Download PDFInfo
- Publication number
- CN2401692Y CN2401692Y CN 99254803 CN99254803U CN2401692Y CN 2401692 Y CN2401692 Y CN 2401692Y CN 99254803 CN99254803 CN 99254803 CN 99254803 U CN99254803 U CN 99254803U CN 2401692 Y CN2401692 Y CN 2401692Y
- Authority
- CN
- China
- Prior art keywords
- packing
- polished rod
- tower
- shaped spring
- cone shaped
- 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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- Sealing Devices (AREA)
Abstract
The utility model discloses an automatically sealed polished rod packing device, and a conic spring (1), a tower-shaped spiral packing (2), and two inner cone surface press caps (3) are arranged in a casing (4) of an existing polished rod packing box. When an inner hole of the tower-shaped spiral packing (2) is worn out, the tower-shaped spiral packing (2), which is under the elastic force of the conic spring (1) under the spiral packing and the press effect of liquid (8), can enable each layer connecting spiral surface to slide, which automatically and tightly collects the inner hole which is worn out; each layer connecting spiral surface is moved upwards, and the tower-shaped spiral packing is tightly plugged between a polished rod (6) and two inner cone surface press caps (3). Therefore, a following type automatic seal is formed, and the service life and the maintenance period of a polished rod packing are lengthened.
Description
The utility model relates to a kind of improved Polish rod packing sealing device, the self-sealing Polish rod packing device of particularly a kind of energy.Be applicable on the mechanical oil recovery equip ment of oil field sucker rod pump formula.
Existing sucker rod pump formula mechanical oil recovery Polish rod packing sealing device mainly is assembled into by packing box pressure cap, packing gland, packing, packing box shell.What generally adopt on the existing oil field is exactly this form.When the packing box pressure cap tightened, packing gland compression packing made it produce plastic strain and is pressed on polished rod and the packing box outer casing inner wall, plays sealing function.But this device has such problem, and that at first wants workman's not timing tightens the packing box pressure cap, remedies the abrasion of polished rod to packing; And reach capacity when losing sealing function and changing packing in packing distortion, the 70% residue packing of still having an appointment fails to utilize; So often cause waste on the material and the difficulty in the equipment management.
Task of the present utility model is that a kind of improved Polish rod packing sealing device will be provided, and it can prolong the application life and the maintenance cycle of Polish rod packing.
Task of the present utility model is finished as follows: one by cone shaped spring, turriform Screw disk-seal tube, two self-sealing Polish rod packing devices that inner conical surface gland, packing box pressure cap, packing box shell are formed.The bottom cone shaped spring of packing in former packing box shell is the turriform Screw disk-seal tube in the cone shaped spring upper end, and packing male cone (strobilus masculinus) and two inner conical surface glands compress.When the abrasion of turriform Screw disk-seal tube endoporus, it is under the effect of cone shaped spring elastic force and fluid pressure, each layer of turriform Screw disk-seal tube by helicoid slide the endoporus of receiving little abrasion automatically and on move, jam-pack forms following type from movable sealing between two inner conical surface glands and polished rod again.So just reach the purpose that prolongs Polish rod packing application life and maintenance cycle.
The utility model is on the basis of former polished rod stuffing box shell and pressure cap, inner each parts is transformed again assemble, and cost almost do not increase; And each parts easy accessibility, the Polish rod packing abrasion need be changed to residue 10% rear.
The concrete structure of utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the sectional drawing according to the self-sealing Polish rod packing device that the utility model proposes.
Fig. 2 is the sectional view of Fig. 1 device along the A-A line.
Below in conjunction with accompanying drawing the utility model is described in further detail.
This device comprises cone shaped spring (1), turriform Screw disk-seal tube (2), and two inner conical surface glands (3).By packing box pressure cap (5), with two inner conical surface glands (3), turriform Screw disk-seal tube (2), cone shaped spring (1), be fitted in the packing box shell (4).Cone shaped spring among the figure (1) is in compressive state.When polished rod (6) by when direction shown in arrow (7), (9) moves or rotates, polished rod (6) just causes a certain amount of abrasion to the endoporus of Screw disk-seal tube (2).This moment turriform Screw disk-seal tube (2), below under the pressure effect of the elastic force of cone shaped spring (1) and liquid (8), each layer produces to slide to receive on the little endoporus automatically by helicoid and moves jam-pack between polished rod (6) and two inner conical surface glands (3), thereby accomplished that following type is from movable sealing.Cone shaped spring (1) is that 5 millimeters carbon spring steel wires coiling forms with diameter, and its free height should be 2 times of turriform Screw disk-seal tube (2) height at least, and the number of turns is decided on the height of packing box shell (4).Turriform Screw disk-seal tube (2) is made with oil resistant rubber or polyurethane.Two inner conical surface glands (3) are made with 45# steel car system or rigid polyvinyl chloride injection moulding, and the conical surface is smooth, and vertically bonding surface (10) is smooth, guarantee the self seal after packing box pressure cap (5) compresses it.
Cone shaped spring (1), turriform Screw disk-seal tube (2), two inner conical surface glands (3) tapering should be identical.
Claims (3)
1, self-sealing Polish rod packing device of forming by cone shaped spring (1), turriform Screw disk-seal tube (2), two inner conical surface glands (3), packing box pressure cap (5), packing box shell (4), it is characterized in that packing box shell (4) bottom adorns a cone shaped spring (1), cone shaped spring (1) with turriform Screw disk-seal tube (2) all the time jam-pack between polished rod (6) and two inner conical surface glands (3).
2, by the described Polish rod packing device of claim 1, the free height that it is characterized in that cone shaped spring (1) is 2 times of turriform Screw disk-seal tube (2).
3,, it is characterized in that cone shaped spring (1), turriform Screw disk-seal tube (2), two inner conical surface glands (3) three's tapering are identical by the described Polish rod packing device of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99254803 CN2401692Y (en) | 1999-11-28 | 1999-11-28 | Automatically sealed polish and packing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99254803 CN2401692Y (en) | 1999-11-28 | 1999-11-28 | Automatically sealed polish and packing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2401692Y true CN2401692Y (en) | 2000-10-18 |
Family
ID=34038329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99254803 Expired - Fee Related CN2401692Y (en) | 1999-11-28 | 1999-11-28 | Automatically sealed polish and packing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2401692Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419207C (en) * | 2006-06-16 | 2008-09-17 | 青州市春晖科技发展有限公司 | Oil well head sealing device |
| CN104563942A (en) * | 2014-12-29 | 2015-04-29 | 新乡市乔山机械设备有限公司 | Anti-leakage wellhead sealing device |
| CN104612620A (en) * | 2015-02-10 | 2015-05-13 | 大庆因你美丽机械设备制造有限公司 | Pumping unit polish rod mechanical sealing device |
| CN106968631A (en) * | 2017-04-24 | 2017-07-21 | 赵吉春 | A kind of long-acting anti-oil leakage device of well mouth of oil well |
-
1999
- 1999-11-28 CN CN 99254803 patent/CN2401692Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419207C (en) * | 2006-06-16 | 2008-09-17 | 青州市春晖科技发展有限公司 | Oil well head sealing device |
| CN104563942A (en) * | 2014-12-29 | 2015-04-29 | 新乡市乔山机械设备有限公司 | Anti-leakage wellhead sealing device |
| CN104612620A (en) * | 2015-02-10 | 2015-05-13 | 大庆因你美丽机械设备制造有限公司 | Pumping unit polish rod mechanical sealing device |
| CN104612620B (en) * | 2015-02-10 | 2016-03-09 | 大庆因你美丽机械设备制造有限公司 | Oil-extractor polish-rod mechanically-sealing apparatus |
| CN106968631A (en) * | 2017-04-24 | 2017-07-21 | 赵吉春 | A kind of long-acting anti-oil leakage device of well mouth of oil well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |