CN201844015U - Sealing device at shaft end of reduction box of oil pumping unit - Google Patents
Sealing device at shaft end of reduction box of oil pumping unit Download PDFInfo
- Publication number
- CN201844015U CN201844015U CN2010205751803U CN201020575180U CN201844015U CN 201844015 U CN201844015 U CN 201844015U CN 2010205751803 U CN2010205751803 U CN 2010205751803U CN 201020575180 U CN201020575180 U CN 201020575180U CN 201844015 U CN201844015 U CN 201844015U
- Authority
- CN
- China
- Prior art keywords
- sealing
- pumping unit
- oil pumping
- shaft end
- sealing device
- 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
The utility model relates to a sealing device at shaft end of a reduction box of an oil pumping unit, which comprises a bearing cover and an outer cover, wherein a sealing groove is arranged in the bearing cover and is filled with stuffing box packing, and a seal pressing ring is arranged between the bearing cover and the outer cover. In the utility model, the packing type sealing is adopted, so that the replacement and maintenance of the sealing is more convenient and fast, the replacement and maintenance operation mode of the sealing can be simplified, the labor intensity can be relieved, the maintenance operation time can be shortened, and the oil production efficiency of the oil pumping unit can be effectively improved. The sealing device has the advantages that the structure is simple, the disassembly and assembly are convenient, the sealing is reliable, and the like.
Description
Technical field
The utility model belongs to the speed reducer technical field, particularly a kind of oil pumping unit reduction gearbox shaft end seal device.
Background technique
In technique known, at the external part of oil pumping unit reduction gearbox output shaft, input shaft, normally sealed groove is set at bearing cap inner circumference position, between sealed groove and axle, install the seal ring that has skeleton additional, the outer end compresses with enclosing cover again, to prevent the speed reducer leakage of oil.In the long playing process of pumping unit, seal ring lost efficacy because of aging, wearing and tearing easily, caused the lubricant oil in the speed reducer to leak from the gap of axle and enclosing cover, and seal ring needs often to change.And the replacing of input shaft backbone sealing ring, big belt pulley or the brake wheel that must dismantle and be installed in axle head, the replacing of output shaft backbone sealing ring then must be dismantled and can be carried out behind the crank.Because the scene do not possess operational condition, often need to pull down speed reducer and deliver to repair shop's repair and replacement, it is bothersome to take a lot of work, and labor intensity is big, and engineering time is long, and the ordinary production of rate and the operation of pumping when influence well recovery.
Summary of the invention
It is easy to maintenance quick that the purpose of this utility model provides a kind of dismounting, and sealing is reliable, the oil pumping unit reduction gearbox shaft end seal device of rate when effectively improving well recovery.
Realize that the technological scheme that the purpose of this utility model is taked is: this device comprises bearing cap and enclosing cover, is provided with sealed groove in the bearing cap, is filled with stuffing box packing in sealed groove, is provided with the sealing trim ring between bearing cap and the enclosing cover.
Felt or butter packing are adopted in described stuffing box packing.
Described sealing trim ring adopts two semicircular ring docking structures.
The oil pumping unit reduction gearbox shaft end seal device of making according to such scheme, the sealing of employing material filling type, make the repair and replacement of sealing more convenient, simplify sealing repair and replacement operating type, alleviated labor intensity, shortened the maintenance operation time, the rate during oil recovery that improved pumping unit greatly, have simple in structurely simultaneously, easy accessibility seals advantages such as reliable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Referring to Fig. 1, oil pumping unit reduction gearbox shaft end seal device of the present utility model is made up of bearing cap 3, enclosing cover 5 and sealing trim ring 4, and sealing trim ring 4 is between bearing cap 3 and enclosing cover 5, and enclosing cover 5 is fixedlyed connected with bearing cap 3 by screw 6 with sealing trim ring 4.In bearing cap 3, be provided with sealed groove, be filled with felt or butter packing_seal filler 8 in the sealing groove, and it compressed, can prevent the leakage of lubricant oil in the speed reducer effectively by sealing trim ring 4, have good wear-resisting and aging quality resistance again, thereby can prolong the repair and replacement cycle.For the ease of dismounting, sealing trim ring 4 adopts two semicircular ring docking structures.Number in the figure 1 is a reduction gearbox output shaft, and label 2 is a bearing.This device in use, when stuffing box packing 8 needs to change, only need with spanner screw 6 to be laid down at the scene of using, enclosing cover 5 is moved to one side of close crank 7 or big belt pulley or brake wheel, take out sealing trim ring 4, changing stuffing box packing 8 gets final product, need not dismantle crank 7 or big belt pulley or brake wheel, do not need speed reducer removed yet and transport to special repair shop and change sealing, and only need 1～2 people to operate, alleviate labor intensity thus greatly, saved the repair and replacement time, and then rate during the oil recovery that has also improved pumping unit.
Claims (3)
1. oil pumping unit reduction gearbox shaft end seal device, it is characterized in that: this device comprises bearing cap and enclosing cover, is provided with sealed groove in the bearing cap, is filled with stuffing box packing in sealed groove, is provided with the sealing trim ring between bearing cap and the enclosing cover.
2. oil pumping unit reduction gearbox shaft end seal device according to claim 1 is characterized in that: felt or butter packing are adopted in described stuffing box packing.
3. oil pumping unit reduction gearbox shaft end seal device according to claim 1 is characterized in that: described sealing trim ring adopts two semicircular ring docking structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205751803U CN201844015U (en) | 2010-10-26 | 2010-10-26 | Sealing device at shaft end of reduction box of oil pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205751803U CN201844015U (en) | 2010-10-26 | 2010-10-26 | Sealing device at shaft end of reduction box of oil pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844015U true CN201844015U (en) | 2011-05-25 |
Family
ID=44038907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205751803U Expired - Fee Related CN201844015U (en) | 2010-10-26 | 2010-10-26 | Sealing device at shaft end of reduction box of oil pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844015U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441468A (en) * | 2011-09-14 | 2012-05-09 | 鞍钢集团矿业公司 | Device for preventing ball mill feeding end from pouring ore |
| CN104154237A (en) * | 2014-07-18 | 2014-11-19 | 安徽荃富信息科技有限公司 | Vacuum sealing mechanism of rotary shaft |
| CN113531092A (en) * | 2021-06-15 | 2021-10-22 | 中国石油化工股份有限公司 | Oil leakage treatment method and device for reduction gearbox of oil pumping unit and universal gland |
-
2010
- 2010-10-26 CN CN2010205751803U patent/CN201844015U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102441468A (en) * | 2011-09-14 | 2012-05-09 | 鞍钢集团矿业公司 | Device for preventing ball mill feeding end from pouring ore |
| CN104154237A (en) * | 2014-07-18 | 2014-11-19 | 安徽荃富信息科技有限公司 | Vacuum sealing mechanism of rotary shaft |
| CN113531092A (en) * | 2021-06-15 | 2021-10-22 | 中国石油化工股份有限公司 | Oil leakage treatment method and device for reduction gearbox of oil pumping unit and universal gland |
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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: 20110525 Termination date: 20111026 |