CN202520919U - Sealing device of reduction gearbox of pumping unit - Google Patents
Sealing device of reduction gearbox of pumping unit Download PDFInfo
- Publication number
- CN202520919U CN202520919U CN2012201576772U CN201220157677U CN202520919U CN 202520919 U CN202520919 U CN 202520919U CN 2012201576772 U CN2012201576772 U CN 2012201576772U CN 201220157677 U CN201220157677 U CN 201220157677U CN 202520919 U CN202520919 U CN 202520919U
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- CN
- China
- Prior art keywords
- sealing
- groove
- cover
- seal ring
- pumping unit
- 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)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a sealing device of a reduction gearbox of a pumping unit. The sealing device mainly resolves the problem that an existing reduction gearbox of a pumping unit is poor in sealing effect and serious in oil leak and pollutes the environment. The sealing device is characterized in that a round groove A (11) is disposed at the outer end portion of a flange (2), and a sealing ring (5) is arranged in the groove A (11) and is tightly pressed through a sealing cover (4) fixed on the end face of the flange (2). A groove B (12) is arranged on the outer end face of a bearing end cover (3), a sealing ring (8) is disposed in the groove B (12), a spring (7) is inlaid outside the sealing ring (8), and the sealing ring (8) is fixed on the bearing end cover (3) through a press cover (6) and consists of a plurality of fan-shaped single bodies (10). Double-sealing is adopted for the sealing device so that sealing effect is good.
Description
Technical field
The utility model relates to the field, oil field, a kind of specifically oil pumping unit reduction gearbox seal arrangement.
Background technique
All will be provided with speed reducer on the oil-field oil pumper, speed reducer causes oil leakage phenomenon commonplace owing to long-time running is prone to cause seal failure.At present adopted various multi-form sealings in order addressing this problem, but oil leakage phenomenon to exist still, to influence the normal operation of pumping unit, befouling environment increases engineering time, and influence is produced.
Summary of the invention
Existing oil pumping unit reduction gearbox sealing effect is poor in order to overcome, oil leakage phenomenon is serious and the deficiency of befouling environment, and the utility model provides a kind of oil pumping unit reduction gearbox seal arrangement, and this oil pumping unit reduction gearbox seal arrangement adopts double seal, good sealing effect.
The technological scheme of the utility model is: a kind of oil pumping unit reduction gearbox seal arrangement, comprise flange and bearing (ball) cover that bearing is outside, and there is circular groove A described flange outer end; Be provided with seal ring in the groove A, seal ring compresses through the sealing cover that is fixed on end face of flange, and described bearing (ball) cover exterior edge face is provided with groove B; Groove B is built-in with seal ring; And the seal ring outside is inlaid with spring, and seal ring is fixed on the bearing (ball) cover through gland, and described seal ring is made up of the plurality of sector monomer.
The utlity model has following beneficial effect: owing to take such scheme; Through on outside gland of bearing and bearing (ball) cover, being equipped with seal, realized double seal, and twice all there is hold down gag; Behind ring wear, can compensate, strengthen sealing effect.The sealing of second road is to work when seepage appears in sealing in first road, except that passing through gland with the seal ring axial compression, can also realize the compensation of all directions through spring with each fan-shaped monomer radial compaction, makes sealing effect better.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the schematic cross-section of seal ring.
1-bearing among the figure, 2-flange, 3-bearing (ball) cover, 4-sealing cover, 5-seal ring, 6-gland, 7-spring, 8-seal ring, 9-O shape seal ring, the fan-shaped monomer of 10-.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
By Fig. 1 and shown in Figure 2, a kind of oil pumping unit reduction gearbox seal arrangement comprises bearing 1; Bearing 1 outside is provided with flange 2, and flange 2 outsides are provided with bearing (ball) cover 3, and there is circular groove A11 described flange 2 outer ends; Be provided with seal ring 5 in the groove A 11; Seal ring 5 compresses through sealing cover 4, and sealing cover 4 is by being bolted on flange 2 end faces, and flange 2 touches the position and is provided with O-ring seals with being coupling.Described bearing (ball) cover 3 exterior edge faces are provided with groove B12, and groove B12 also is circular, and its inside is equipped with seal ring 8; And seal ring 8 outsides are inlaid with spring 7; As preferably, seal ring 8 outer peripheral surfaces are provided with annular groove, and spring 7 is for being placed in the annular groove; Seal ring 8 is fixed on the bearing (ball) cover 3 through gland 6, makes it after wearing and tearing, can carry out nose balance.Described seal ring 8 is made up of plurality of sector monomer 10, annulus of fan-shaped monomer 10 common compositions, and the contractile force through spring 7 after wearing and tearing can make fan-shaped monomer 10 shrink to central axis, realizes radial compensation.
The sealing device adopts dual, and when seepage appearred in sealing in first road, the sealing of second road just played a role, and second road sealing employing axial-radial bidirectional compensating, has strengthened sealing effect, has reduced oil leakage phenomenon, avoids environmental pollution.
Claims (1)
1. oil pumping unit reduction gearbox seal arrangement; Comprise flange (2) and bearing (ball) cover (3) that bearing (1) is outside; It is characterized in that: there is circular groove A (11) described flange (2) outer end; Be provided with seal ring (5) in the groove A (11), seal ring (5) compresses through the sealing cover (4) that is fixed on flange (2) end face, and described bearing (ball) cover (3) exterior edge face is provided with groove B (12); Groove B (12) is built-in with seal ring (8); And seal ring (8) outside is inlaid with spring (7), and seal ring (8) is fixed on the bearing (ball) cover (3) through gland (6), and described seal ring (8) is made up of plurality of sector monomer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201576772U CN202520919U (en) | 2012-04-16 | 2012-04-16 | Sealing device of reduction gearbox of pumping unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201576772U CN202520919U (en) | 2012-04-16 | 2012-04-16 | Sealing device of reduction gearbox of pumping unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520919U true CN202520919U (en) | 2012-11-07 |
Family
ID=47103871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201576772U Expired - Fee Related CN202520919U (en) | 2012-04-16 | 2012-04-16 | Sealing device of reduction gearbox of pumping unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520919U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911625A (en) * | 2020-08-19 | 2020-11-10 | 南京工业职业技术学院 | Self-adaptive shaft seal mechanism and mounting method thereof |
-
2012
- 2012-04-16 CN CN2012201576772U patent/CN202520919U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911625A (en) * | 2020-08-19 | 2020-11-10 | 南京工业职业技术学院 | Self-adaptive shaft seal mechanism and mounting method thereof |
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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: 20121107 Termination date: 20130416 |