CN205859155U - Hydrodynamic piston shaft sealing part - Google Patents
Hydrodynamic piston shaft sealing part Download PDFInfo
- Publication number
- CN205859155U CN205859155U CN201620285345.0U CN201620285345U CN205859155U CN 205859155 U CN205859155 U CN 205859155U CN 201620285345 U CN201620285345 U CN 201620285345U CN 205859155 U CN205859155 U CN 205859155U
- Authority
- CN
- China
- Prior art keywords
- lip
- piston shaft
- epipharynx
- sealing part
- sealed body
- 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
This utility model relates to a kind of hydrodynamic piston shaft sealing part, and including sealed body, sealed body is provided with outer lip and epipharynx, and outer lip is respectively equipped with chamfering on the lip of epipharynx, and chamfering scope is at 40 ° ~ 60 °.This utility model hydrodynamic piston shaft sealing part novel structure, good sealing effect.
Description
Technical field
This utility model relates to sealing member, is specifically related to a kind of hydrodynamic piston shaft sealing part.
Background technology
Hydraulic jack belongs to high-frequent reciprocating motion, is widely used in excavator, loader, agricultural machinery etc., wherein hydraulic pressure
The effect sealed prevents from revealing exactly, but improves sealing and will increase frictional force, and frictional force increase can directly result in motion
Ability and quality reduce, and rub and can accelerate the abrasion of sealing member, and friction and wear is the main cause causing seal break-off.
So in the seal, handle sealing well, need to design from multiple angles such as friction, structure, lubrications, the therefore design of product
Shape becomes extremely important.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency overcoming prior art to be, it is provided that a kind of novel structure,
Good sealing effect, it is possible to the hydrodynamic piston shaft sealing part of self-lubricating.
For solving above technical problem, a kind of technical scheme that this utility model is taked is:
A kind of hydrodynamic piston shaft sealing part, including sealed body, sealed body is provided with outer lip and epipharynx, outer lip and epipharynx
Lip on be respectively equipped with chamfering, chamfering scope is at 40 ° ~ 60 °.
Preferably, sealed body is provided with two little lips.
It is further preferred that two little lips are symmetrical arranged on sealed body.
It is further preferred that the extrusion position of little lip is equal to or less than outer lip or the lip position of epipharynx.
Preferably, being respectively equipped with lobe at outer lip and epipharynx, each lobe all offers 6 oil unloading troughs.
Due to the employing of above technical scheme, this utility model compared with prior art has the advantage that
This utility model hydrodynamic piston shaft sealing part includes one epipharynx of an outer lip, and two little lips, and should
Sealing member has 6 oil unloading troughs, and two big lips play the effect sealing pressurize, transmit hydraulic coupling with this, two little lips
Can be used to oil storage, thus form one layer of oil film, thus reach the effect of self-lubricating, two other little lip can be at big lip
Seal the when of leakage of oil, 6 oil unloading troughs pressure overload when, a part of hydraulic oil can be proceeded to sealed groove from
And carry out pressure release and ensure the sealing of total system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the top view of this utility model lobe；
Wherein: 1, outer lip；2, epipharynx；3, chamfering；4, little lip；5, lobe；6, oil unloading trough；7, sealed body.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this utility model is further described by embodiment.
As shown in Figure 1, this utility model one hydrodynamic piston shaft sealing part, including sealed body, sealed body sets
Having outer lip and an epipharynx, outer lip is respectively equipped with chamfering on the lip of epipharynx, and chamfering scope is at 40 ° ~ 60 °, it is thus possible to more efficient
Scrape impurity.
In the present embodiment, sealed body is provided with two little lips, and the extrusion position of two little lips equals to or less than
The lip position of outer lip or epipharynx, this structure has deformability well, adapts to the operating mode under different stress so that appoint
When wait the effect all with oil storage tank.
In the present embodiment, two little lips are symmetrical arranged on sealed body, so can keep maximum in this position
Compressive strength, thus in the case of identical decrement, provide maximum compression stress, thus ensure that it seals.
In the present embodiment, being respectively equipped with lobe at outer lip and epipharynx, each lobe all offers 6 oil unloading troughs, and 6
A part of hydraulic oil can be proceeded to sealed groove pressure overload when thus carry out pressure release and ensure entirety system by individual oil unloading trough
The sealing of system.
This utility model hydrodynamic piston shaft sealing part novel structure, good sealing effect.
Above this utility model is described in detail, all equivalence changes made according to this utility model spirit
Or modify, all should contain within protection domain of the present utility model.
Claims (2)
1. a hydrodynamic piston shaft sealing part, including sealed body, it is characterised in that: described sealed body is provided with outer lip and interior
Lip, the lip of described outer lip and described epipharynx is respectively equipped with chamfering, described chamfering scope at 40 ° ~ 60 °, described sealed body
Being provided with two little lips, two described little lips are symmetrical arranged on described sealed body, the extrusion position of described little lip
Lip position equal to or less than described outer lip or described epipharynx.
Hydrodynamic piston shaft sealing part the most according to claim 1, it is characterised in that: it is respectively equipped with at described outer lip and epipharynx
Lobe, each described lobe all offers 6 oil unloading troughs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620285345.0U CN205859155U (en) | 2016-04-07 | 2016-04-07 | Hydrodynamic piston shaft sealing part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620285345.0U CN205859155U (en) | 2016-04-07 | 2016-04-07 | Hydrodynamic piston shaft sealing part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205859155U true CN205859155U (en) | 2017-01-04 |
Family
ID=57642157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620285345.0U Expired - Fee Related CN205859155U (en) | 2016-04-07 | 2016-04-07 | Hydrodynamic piston shaft sealing part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205859155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486743A (en) * | 2018-06-01 | 2018-09-04 | 山东日发纺织机械有限公司 | A kind of beating-up shaft of water-jet loom water proof ring |
-
2016
- 2016-04-07 CN CN201620285345.0U patent/CN205859155U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108486743A (en) * | 2018-06-01 | 2018-09-04 | 山东日发纺织机械有限公司 | A kind of beating-up shaft of water-jet loom water proof ring |
| CN108486743B (en) * | 2018-06-01 | 2024-04-12 | 山东日发纺织机械有限公司 | Water-proof ring of beating-up shaft of water-jet loom |
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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: 20170104 Termination date: 20170407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |