CN204344923U - For the seal arrangement of flexible part of heading machine - Google Patents
For the seal arrangement of flexible part of heading machine Download PDFInfo
- Publication number
- CN204344923U CN204344923U CN201420749718.6U CN201420749718U CN204344923U CN 204344923 U CN204344923 U CN 204344923U CN 201420749718 U CN201420749718 U CN 201420749718U CN 204344923 U CN204344923 U CN 204344923U
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- CN
- China
- Prior art keywords
- slip ring
- type
- utility
- flexible
- seal arrangement
- 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 discloses a kind of seal arrangement for flexible part of heading machine, comprises O type circle and slip ring, and go out O type circle and contact with outer telescopic tube, slip ring contacts with flexible inner core, and described O type circle embeds in slip ring and becomes C type slip ring type combined sealing.After the utility model uses C type slip ring type combined sealing, greatly reduce the leakage of pars contractilis lubricant oil (lubricating grease) when flexible, block dust in working environment and enter interiors of products, avoid the pollution of lubricant oil (lubricating grease), thus power loss when significantly reducing wearing and tearing, the reduction excavation of part, improve operating efficiency and promote the progress of development machine general technical.Improve the operating efficiency of equipment.
Description
Technical field
The utility model relates to a kind of seal arrangement for flexible part of heading machine.
Background technique
Pars contractilis is the important parts of in development machine, plays key player, be widely used in the fields such as drive excavation, mine operation in national economy and national defense construction.In the course of the work, stretching and do relative sliding between inner core and outer telescopic tube, is reduce friction factor, needs between the two to add lubricant oil or lubricating grease.At present, development machine both domestic and external stretches design of Sealing Structure between inner core and outer telescopic tube, and generally adopt oil immersion asbestos packing, Problems existing mainly contains: after (1) application for a long time, amount of leakage increases; (2) Sealing is not wear-resisting, has very large wearing and tearing after long-time application; (3) friction factor is large, and starting friction power is large, often with the phenomenon such as creeping; (4) asbestos packing well can not intercept lubricant oil, can not form oil film molecule to play seal action when flexible inner core and outer telescopic tube relative movement between Sealing and slip surface.The existence of these problems often causes the leakage of lubricant oil or lubricating grease, or lubricant oil is lost lubricating function with lubricating grease by the dust pollution of working environment, reduces the mechanical efficiency of equipment.
Model utility content
The purpose of this utility model is to provide a kind of seal arrangement for flexible part of heading machine, change original sealing and dustproof part such as oil immersion asbestos packing, v shaped ring into C type slip ring type combined sealing, reduce friction factor, the leakage effectively avoiding lubricant oil or lubricating grease and turbidity test.
For achieving the above object, the utility model by the following technical solutions:
The utility model is used for the seal arrangement of flexible part of heading machine, and comprise O type circle and slip ring, go out O type circle and contact with outer telescopic tube, slip ring contacts with flexible inner core, and described O type circle embeds in slip ring and becomes C type slip ring type combined sealing.
Described slip ring is thin lip type slip ring.
After the utility model uses C type slip ring type combined sealing, greatly reduce the leakage of pars contractilis lubricant oil (lubricating grease) when flexible, block dust in working environment and enter interiors of products, avoid the pollution of lubricant oil (lubricating grease), thus power loss when significantly reducing wearing and tearing, the reduction excavation of part, improve operating efficiency and promote the progress of development machine general technical.Improve the operating efficiency of equipment.
Accompanying drawing explanation
Fig. 1 is the utility model general frame figure.
Fig. 2 is the partial enlarged drawing of the I of Fig. 1.
Fig. 3 is the partial enlarged drawing of the II of Fig. 2.
Embodiment
Details are as follows in conjunction with legend for a specific embodiment of the present utility model:
As shown in Figure 1 to Figure 3, the utility model is used for the seal arrangement of flexible part of heading machine, comprises O type circle 4 and slip ring 5, goes out O type circle 4 and contact with outer telescopic tube 1, slip ring 5 contacts with flexible inner core 2, and described O type circle 4 embeds in slip ring 5 and becomes C type slip ring type combined sealing 3.
Described slip ring 5 is thin lip type slip ring.
Change original sealing and dustproof part such as oil immersion asbestos packing, v shaped ring into C type slip ring type combined sealing, O type circle contacts with outer telescopic tube as seen from Figure 1, slip ring and flexible inner core are spliced tactile, there is certain precompressed O shape enclose to slip ring pre-pressing force---" enclasping force " of thin lip, slip ring lip is tightly fitted on slip surface.Therefore, even if under minute-pressure even zero-pressure, also there is good sealing.After extremely wear-resisting PTFE slip ring long-term work forms wearing and tearing, the elastic force that O shape is enclosed to be provided can make the slip ring of thin lip produce enough distortion to compensate and trickle wear extent.
It is more than a specific embodiment of the present utility model; detailed elaboration has been carried out to basic principle of the present utility model and major character; do not departing under scope of the present utility model and real situation, the change do the utility model and change still belong to protection domain of the present utility model.
Claims (2)
1. the seal arrangement for flexible part of heading machine, it is characterized in that comprising O type circle (4) and slip ring (5), O type circle (4) contacts with outer telescopic tube (1), slip ring (5) contacts with flexible inner core (2), and described O type circle (4) embeds in slip ring (5) and becomes C type slip ring type combined sealing.
2. the seal arrangement for flexible part of heading machine according to claim 1, is characterized in that described slip ring (5) is for thin lip type slip ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420749718.6U CN204344923U (en) | 2014-12-01 | 2014-12-01 | For the seal arrangement of flexible part of heading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420749718.6U CN204344923U (en) | 2014-12-01 | 2014-12-01 | For the seal arrangement of flexible part of heading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204344923U true CN204344923U (en) | 2015-05-20 |
Family
ID=53228193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420749718.6U Expired - Fee Related CN204344923U (en) | 2014-12-01 | 2014-12-01 | For the seal arrangement of flexible part of heading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204344923U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065677A (en) * | 2015-08-10 | 2015-11-18 | 华侨大学 | Sealing ring special for piston of injector of pipe-free liquid dropping machine |
| CN105401941A (en) * | 2015-12-23 | 2016-03-16 | 林州重机集团股份有限公司 | Telescoping structure of heading machine |
-
2014
- 2014-12-01 CN CN201420749718.6U patent/CN204344923U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065677A (en) * | 2015-08-10 | 2015-11-18 | 华侨大学 | Sealing ring special for piston of injector of pipe-free liquid dropping machine |
| CN105401941A (en) * | 2015-12-23 | 2016-03-16 | 林州重机集团股份有限公司 | Telescoping structure of heading machine |
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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: 20150520 Termination date: 20161201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |