CN205064836U - Sealing ring of plunger body - Google Patents
Sealing ring of plunger body Download PDFInfo
- Publication number
- CN205064836U CN205064836U CN201520714322.2U CN201520714322U CN205064836U CN 205064836 U CN205064836 U CN 205064836U CN 201520714322 U CN201520714322 U CN 201520714322U CN 205064836 U CN205064836 U CN 205064836U
- Authority
- CN
- China
- Prior art keywords
- seal ring
- plunger body
- sealing ring
- utility
- model
- 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 ring of plunger body, wherein sealing ring both ends opening for L shape opening, two L shape openings mutually support, form closed sealing ring. The utility model discloses fungible metallic sealing ring uses, and stand wear and tear, high temperature resistant, can be in the temperature for to use for a long time between - 200-300 DEG C, Z style of calligraphy sealed interface, can the fully provided the sealed effect of motor, and furthest's reduction friction loss, long service life.
Description
Technical field
The utility model belongs to hydraulic seal technical field, particularly relates to a kind of seal ring of plunger body.
Background technique
Traditional plunger body sealing generally adopts metallic packing ring, there is the problems such as friction factor is large, sealing effect is poor, working life is low, and at hydraulic element constantly under the background of high voltage and high power development, original sealing configuration and material cannot reach designing requirement, easy formation fusion, wearing and tearing, hydraulic element are caused to leak large, disabler.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of seal ring of plunger body, solves seal ring and easily forms fusion, wearing and tearing, cause hydraulic element to leak large problem.
The utility model solves the technological scheme that its technical problem adopts: the seal ring providing a kind of plunger body, wherein said seal ring both ends open is L shape opening, and two described L shape openings cooperatively interact, form closed seal ring.
Described seal ring material is polyimide.
Two described L shape open part overlaps cooperatively interact, form closed seal ring.
The upper-end surface of described seal ring and inner headed face pass through the hydraulic oil at plunger body top, at periphery and the cylinder holes close contact of the effect lower sealing ring of hydraulic coupling, and the lower end surface of seal ring and plunger body close contact.
Beneficial effect
The alternative metallic packing ring of the utility model uses, and wear-resistant, high temperature resistant, can be Long-Time Service between-200 ~ 300 DEG C in temperature; L shape sealed interface, fully can meet the sealing effect of motor, and reduce frictional loss to greatest extent, long service life.
Accompanying drawing explanation
Fig. 1 is the utility model deployed configuration schematic diagram;
Fig. 2 is the utility model closing structure schematic diagram;
Fig. 3 is that embodiment 1 uses structural representation.
Embodiment
Below in conjunction with specific embodiment, set forth the utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.
Embodiment 1
As shown in Figure 1,2 and 3, a kind of seal ring of plunger body, wherein said seal ring 3 both ends open is L shape opening 4, and two described L shape openings 4 cooperatively interact, form closed seal ring 3.The seal ring of two ends L shape opening 4 does not have seal gap, good airproof performance.
Described seal ring 3 material is polyimide.Polyimide high temperature-resistant reaches more than 400 DEG C, makes seal ring at temperature range Long-Time Service between-200 ~ 300 DEG C, and without sharp melting point, can have high insulating property.
Two described L shape openings 4 partly overlap and cooperatively interact, form closed seal ring 3.
The upper-end surface of described seal ring 3 and inner headed face pass through the hydraulic oil at plunger body 2 top, at periphery and cylinder holes 1 close contact of the effect lower sealing ring 3 of hydraulic coupling, and the lower end surface of seal ring 3 and plunger body 2 close contact.Seal ring is directly proportional to the size of hydraulic oil to the frictional force of cylinder holes, and hydraulic oil is larger, resistance is larger, and sealing effect is better; Hydraulic oil is less, resistance is less, and frictional loss is less.
During actual use, seal ring 3 is put in the seal groove of cock body 2, two Z-shaped superposition of end gap parts cooperatively interact, form closed seal ring, the hydraulic oil at plunger body 2 top passes through upper-end surface and the inner headed face of seal ring 3, because seal ring is directly proportional to the size of hydraulic oil to the frictional force of cylinder holes, hydraulic oil is larger, resistance is larger, sealing effect is better, hydraulic oil is less, resistance is less, frictional loss is less, therefore at the periphery of the effect seal ring 3 of hydraulic coupling and cylinder holes 1 close contact, the lower end surface of seal ring 3 and plunger body 2 close contact, thus reach sealing effect, and reduce frictional loss to greatest extent.
Claims (4)
1. a seal ring for plunger body, is characterized in that: described seal ring (3) both ends open is L shape opening (4), and two described L shape openings (4) cooperatively interact, form closed seal ring (3).
2. the seal ring of a kind of plunger body according to claim 1, is characterized in that: described seal ring (3) material is polyimide.
3. the seal ring of a kind of plunger body according to claim 1, is characterized in that: two described L shape openings (4) partly overlap and cooperatively interact, form closed seal ring (3).
4. the seal ring of a kind of plunger body according to claim 1, it is characterized in that: the upper-end surface of described seal ring (3) and inner headed face pass through the hydraulic oil at plunger body (2) top, at periphery and cylinder holes (1) close contact of the effect lower sealing ring (3) of hydraulic coupling, the lower end surface of seal ring (3) and plunger body (2) close contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520714322.2U CN205064836U (en) | 2015-09-15 | 2015-09-15 | Sealing ring of plunger body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520714322.2U CN205064836U (en) | 2015-09-15 | 2015-09-15 | Sealing ring of plunger body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205064836U true CN205064836U (en) | 2016-03-02 |
Family
ID=55391393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520714322.2U Expired - Fee Related CN205064836U (en) | 2015-09-15 | 2015-09-15 | Sealing ring of plunger body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205064836U (en) |
-
2015
- 2015-09-15 CN CN201520714322.2U patent/CN205064836U/en not_active Expired - Fee Related
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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: 20160302 Termination date: 20180915 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |