CN201843560U - Conical spiral rubber sleeve packing - Google Patents
Conical spiral rubber sleeve packing Download PDFInfo
- Publication number
- CN201843560U CN201843560U CN2010206050675U CN201020605067U CN201843560U CN 201843560 U CN201843560 U CN 201843560U CN 2010206050675 U CN2010206050675 U CN 2010206050675U CN 201020605067 U CN201020605067 U CN 201020605067U CN 201843560 U CN201843560 U CN 201843560U
- Authority
- CN
- China
- Prior art keywords
- packing
- conical
- polished rod
- oil
- root
- 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
Links
- 238000012856 packing Methods 0.000 title claims abstract description 86
- 238000005086 pumping Methods 0.000 abstract description 13
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract description 2
- 239000003566 sealing material Substances 0.000 abstract 1
- 239000003129 oil well Substances 0.000 description 3
- 239000008393 encapsulating agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The conical spiral rubber sleeve packing is applied to the oil pumping polished rod for sealing the oil extraction well head in the oil field. The outer part of the outer coil root is cylindrical, the lower end of the outer coil root is provided with a central hole, and the oil pumping polished rod can penetrate through the central hole at the lower end of the outer coil root; the upper end of the outer packing is provided with a conical hole; an inner packing is arranged in the conical hole of the outer packing, the inner packing is provided with a central hole, the oil pumping polished rod can penetrate through the central hole of the inner packing, and the outer wall of the inner packing is in a conical shape; the inclination of the outer cone of the inner disc root is the same as that of the conical hole of the outer disc root; the inner packing is formed by spirally coiling a sealing strip with a rectangular cross section. The effect is as follows: through changing the structure of rubber packing, change into toper spiral packing promptly, under the prerequisite that does not change the packing sealing material, realize the contractibility of internal diameter, reach the sealed of beam-pumping polished rod, extension gum cover packing life.
Description
Technical field
The utility model relates to oil recovery technique field, oil field, and particularly the sucker rod pumping well head is the cone-type spiral gum cover packing in a kind of well head seal box.
Background technology
In the well head encapsulant at the scene extensively with the rubber packing as encapsulant, in the oil well production process, owing to polished rod in reciprocating, oil pumper immerge, oil pumper installation site reason such as inaccurate, cause polished rod and well head to produce horizontal-shift and angular deflection, cause well head eccentric wear, packing weak point in application life, well head leakage of oil etc.Be accompanied by the influence of the prolongation, rod-pumped well extraction liquid temp, viscosity change, oil well rig etc. of exploitation time, the well head sealed packing is is frequently worn and torn, the rubber packing is worn back internal diameter change greatly, just can not play the phenomenon of sealing, leakage phenomena is on the rise, and has increased the labour intensity of operating personnel to oil well management.
The utility model content
The purpose of this utility model is: a kind of cone-type spiral gum cover packing is provided, makes the internal diameter of packing may overregulate the pressure cap of packing box and dwindle, reach the best fit of packing internal diameter and polished rod external diameter, strengthen sealing performance, prolong gum cover packing life cycle.Solve the less deficiency of the horizontal compressibility of present rubber airtight and watertight padding.
The technical solution adopted in the utility model is: cone-type spiral gum cover packing, mainly form by outer packing and interior packing, and it is characterized in that: outer packing is outside, and there is centre bore outer packing lower end for cylindric, and oil pumping polish rod can pass the centre bore of outer packing lower end; There is conical bore the upper end of outer packing; An interior packing is arranged in the conical bore of packing outside, and interior packing has centre bore, the centre bore of packing in oil pumping polish rod can pass, and the outer wall of interior packing is a cone shape; The gradient of interior packing outer cone is identical with the gradient of outer packing conical bore; The weather strip dish spirality that interior packing is is rectangle by a cross section.
The operating principle of summary cone-type spiral gum cover packing.Consult Fig. 1.
Outside interior packing 2 is inserted in the packing 1, interior packing 2 bottoms and outside leave certain space (about 5mm) between the packing 1, when oil pumping polish rod 3 moves back and forth in interior packing 2 centre bores, after interior packing 2 wearing and tearing, interior packing 2 just moves down, also be subjected to the extruding of outer packing 1 simultaneously around the packing 2, the internal diameter of packing 2 diminishes in making, and continues to keep sealing state with oil pumping polish rod.Thereby played the effect of sealing better, the life cycle that has prolonged packing.
The beneficial effects of the utility model: the utility model cone-type spiral gum cover packing by changing the structure of rubber packing, promptly changes the cone-type spiral packing into, do not change under the prerequisite of packing_seal material, but realize the contractility of internal diameter, reach the sealing of oil pumping polish rod, prolong gum cover packing application life.
Description of drawings
Fig. 1 is the use schematic diagram of the utility model cone-type spiral gum cover packing.
Among the figure, 1. outer packing, 2. interior packing, 3. oil pumping polish rod.
The specific embodiment
Embodiment 1: with a cone-type spiral gum cover packing is example, and the utility model is described in further detail.
Consult Fig. 1.The utility model cone-type spiral gum cover packing mainly is made up of outer packing 1 and interior packing 2.Outer packing 1 outside is cylindric, external diameter 120mm.It is the centre bore of 30mm that there is diameter outer packing 1 lower end, oil pumping polish rod diameter 28mm.There is conical bore the upper end of outer packing 1.An interior packing 2 is arranged in the conical bore of packing 1 outside, and interior packing 2 has centre bore, the centre bore of packing 2 in oil pumping polish rod can pass.The outer wall of interior packing 2 is a cone shape; The gradient of interior packing 2 outer cones is identical with the gradient of outer packing 1 conical bore, and gradient is 20 degree.The weather strip dish spirality that interior packing 2 is is rectangle by a cross section.
Claims (1)
1. a cone-type spiral gum cover packing mainly is made up of outer packing (1) and interior packing (2), it is characterized in that: outer packing (1) is outside for cylindric, and there is centre bore outer packing (1) lower end; There is conical bore the upper end of outer packing (1); In the conical bore of packing (1) an interior packing (2) is arranged outside, interior packing (2) has centre bore, and the outer wall of interior packing (2) is a cone shape; The gradient of interior packing (2) outer cone is identical with the gradient of outer packing (1) conical bore; The weather strip dish curl that interior packing (2) is is rectangle by a cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206050675U CN201843560U (en) | 2010-11-11 | 2010-11-11 | Conical spiral rubber sleeve packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206050675U CN201843560U (en) | 2010-11-11 | 2010-11-11 | Conical spiral rubber sleeve packing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843560U true CN201843560U (en) | 2011-05-25 |
Family
ID=44038453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206050675U Expired - Lifetime CN201843560U (en) | 2010-11-11 | 2010-11-11 | Conical spiral rubber sleeve packing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201843560U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343407A (en) * | 2014-06-19 | 2015-02-11 | 克拉玛依胜利高原机械有限公司 | Cloth-added packing and manufacturing method thereof |
| CN107687329A (en) * | 2017-10-18 | 2018-02-13 | 天津宝骏科技股份有限公司 | A kind of oil field shaft mouth packing for boring sealing structure |
-
2010
- 2010-11-11 CN CN2010206050675U patent/CN201843560U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343407A (en) * | 2014-06-19 | 2015-02-11 | 克拉玛依胜利高原机械有限公司 | Cloth-added packing and manufacturing method thereof |
| CN107687329A (en) * | 2017-10-18 | 2018-02-13 | 天津宝骏科技股份有限公司 | A kind of oil field shaft mouth packing for boring sealing structure |
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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 |
Granted publication date: 20110525 |
|
| CX01 | Expiry of patent term |