CN204175589U - For the seal arrangement of injection pump pull bar - Google Patents
For the seal arrangement of injection pump pull bar Download PDFInfo
- Publication number
- CN204175589U CN204175589U CN201420534545.6U CN201420534545U CN204175589U CN 204175589 U CN204175589 U CN 204175589U CN 201420534545 U CN201420534545 U CN 201420534545U CN 204175589 U CN204175589 U CN 204175589U
- Authority
- CN
- China
- Prior art keywords
- oil
- sealing box
- groove
- pull bar
- oil sealing
- 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)
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model discloses a kind of seal arrangement for injection pump pull bar, comprise crankcase, pull bar, described crankcase is provided with sealed support, described pull bar is provided with oil sealing box, described sealed support and oil sealing box are by gland top pressure compact siro spinning technology, it is characterized in that: the described oil sealing box end face contacted with sealed support is provided with the closure gasket groove being provided with O RunddichtringO, be provided with in described oil sealing box and from inside to outside O RunddichtringO be installed successively, spacer ring, outside framework oil seal, spacer ring, the stepped sealed groove of outside framework oil seal, the outer end of the stepped sealed groove of described oil sealing box and outside framework oil seal form an oil-collecting annular groove, in described oil sealing box stepped sealed groove middle part groove face immediately below be provided with oil-return groove, the bottom of described sealed support is provided with spill port.The utility model is by the outside framework oil seal in oil sealing box and O RunddichtringO by the lubricant oil scraping of pull bar, and lubricant oil backflows through spacer ring and oil-collecting annular groove and flows back in crankcase through back oil road, effectively stops lubricant oil leakage.
Description
Technical field
The utility model relates to a kind of seal arrangement for injection pump pull bar.
Background technique
The seal arrangement of injection pump pull bar, for sealing pull bar, prevents the lubricant oil of crankcase from missing from pull bar.At present, injection pump pull bar adopts two outside framework oil seal, and the violent oscillatory motion of injection pump pull bar, high-frequent reciprocating athletic meeting cause a part of lubricant oil to be missed away from crankcase along with pull bar passes through two outside framework oil seal surface of contact.
Summary of the invention
For above-mentioned the deficiencies in the prior art part, the utility model provides a kind of seal arrangement being provided with back oil road for injection pump pull bar.
To achieve these goals, the technical solution adopted in the utility model is:
Seal arrangement for injection pump pull bar described in the utility model, comprise crankcase, pull bar, described crankcase is provided with sealed support, described pull bar is provided with oil sealing box, described sealed support and oil sealing box are by gland top pressure compact siro spinning technology, it is characterized in that: the described oil sealing box end face contacted with sealed support is provided with the closure gasket groove being provided with O RunddichtringO, be provided with in described oil sealing box and from inside to outside O RunddichtringO be installed successively, spacer ring, outside framework oil seal, spacer ring, the stepped sealed groove of outside framework oil seal, the outer end of the stepped sealed groove of described oil sealing box and outside framework oil seal form an oil-collecting annular groove, in described oil sealing box stepped sealed groove middle part groove face immediately below be provided with oil-return groove, the bottom of described sealed support is provided with spill port.
Further, the degree of depth of the aperture of the spill port of the sealed support of described composition back oil road, the oil-return groove of oil sealing box is all identical with the ring footpath of oil-collecting annular groove.
Compared with prior art, the beneficial effects of the utility model:
Seal arrangement for injection pump pull bar described in the utility model, by the outside framework oil seal in oil sealing box and O RunddichtringO by the lubricant oil scraping of pull bar, lubricant oil backflows through spacer ring and oil-collecting annular groove and flows back in crankcase through back oil road, effective prevention lubricant oil leakage, back oil road also has the effect of pressure release simultaneously, improves sealing effect.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of the seal arrangement for injection pump pull bar described in the utility model.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
As shown in Figure 1, seal arrangement for injection pump pull bar described in the utility model, comprise crankcase 1, pull bar 5, described crankcase 1 is provided with sealed support 2, described pull bar 5 is provided with oil sealing box 4, described sealed support 2 and oil sealing box 4 push up pressure compact siro spinning technology by gland 3, it is characterized in that: described oil sealing box 4 end face contacted with sealed support 2 is provided with the closure gasket groove being provided with O RunddichtringO 6, be provided with in described oil sealing box 4 and from inside to outside O RunddichtringO 8 be installed successively, spacer ring 9, outside framework oil seal 10, spacer ring 11, the stepped sealed groove of outside framework oil seal 12, the outer end of the stepped sealed groove of described oil sealing box 4 and outside framework oil seal 12 form an oil-collecting annular groove 7, in described oil sealing box 4 stepped sealed groove middle part groove face immediately below be provided with oil-return groove, the bottom of described sealed support 2 is provided with spill port, the aperture of the spill port of the sealed support 2 of described composition back oil road 13, the degree of depth of the oil-return groove of oil sealing box 4 is all identical with the ring footpath of oil-collecting annular groove 7.
Seal arrangement for injection pump pull bar described in the utility model, by the outside framework oil seal (10,12) in oil sealing box 4 and O RunddichtringO 8 by the lubricant oil scraping of pull bar, lubricant oil backflows through spacer ring (9,11) and oil-collecting annular groove 6 and flows back in crankcase 1 through back oil road 13, effective prevention lubricant oil leakage, back oil road 13 also has the effect of pressure release simultaneously, improves sealing effect.
Claims (2)
1. the seal arrangement for injection pump pull bar, comprise crankcase, pull bar, described crankcase is provided with sealed support, described pull bar is provided with oil sealing box, described sealed support and oil sealing box are by gland top pressure compact siro spinning technology, it is characterized in that: the described oil sealing box end face contacted with sealed support is provided with the closure gasket groove being provided with O RunddichtringO, be provided with in described oil sealing box and from inside to outside O RunddichtringO be installed successively, spacer ring, outside framework oil seal, spacer ring, the stepped sealed groove of outside framework oil seal, the outer end of the stepped sealed groove of described oil sealing box and outside framework oil seal form an oil-collecting annular groove, in described oil sealing box stepped sealed groove middle part groove face immediately below be provided with oil-return groove, the bottom of described sealed support is provided with spill port.
2. according to claim 1 for the seal arrangement of injection pump pull bar, it is characterized in that: the degree of depth of the aperture of the spill port of the sealed support of described composition back oil road, the oil-return groove of oil sealing box is all identical with the ring footpath of oil-collecting annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534545.6U CN204175589U (en) | 2014-09-18 | 2014-09-18 | For the seal arrangement of injection pump pull bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420534545.6U CN204175589U (en) | 2014-09-18 | 2014-09-18 | For the seal arrangement of injection pump pull bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175589U true CN204175589U (en) | 2015-02-25 |
Family
ID=52564400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420534545.6U Expired - Fee Related CN204175589U (en) | 2014-09-18 | 2014-09-18 | For the seal arrangement of injection pump pull bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175589U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423104A (en) * | 2015-12-24 | 2016-03-23 | 衢州学院 | Self-pressurization hydro-hybrid lubricated port plate |
| CN106931142A (en) * | 2017-03-29 | 2017-07-07 | 杭州有华自动化设备有限公司 | Solid carving machine planetary reducer encapsulating structure |
| CN108757430A (en) * | 2018-08-16 | 2018-11-06 | 中船勘察设计研究院有限公司 | The leak-proof device of reciprocating pump |
-
2014
- 2014-09-18 CN CN201420534545.6U patent/CN204175589U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423104A (en) * | 2015-12-24 | 2016-03-23 | 衢州学院 | Self-pressurization hydro-hybrid lubricated port plate |
| CN105423104B (en) * | 2015-12-24 | 2023-06-13 | 衢州学院 | Self-pressurization type dynamic-static pressure lubrication type valve plate |
| CN106931142A (en) * | 2017-03-29 | 2017-07-07 | 杭州有华自动化设备有限公司 | Solid carving machine planetary reducer encapsulating structure |
| CN108757430A (en) * | 2018-08-16 | 2018-11-06 | 中船勘察设计研究院有限公司 | The leak-proof device of reciprocating pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20150918 |
|
| EXPY | Termination of patent right or utility model |