CN208024654U - A kind of piston packing ring - Google Patents
A kind of piston packing ring Download PDFInfo
- Publication number
- CN208024654U CN208024654U CN201820470131.XU CN201820470131U CN208024654U CN 208024654 U CN208024654 U CN 208024654U CN 201820470131 U CN201820470131 U CN 201820470131U CN 208024654 U CN208024654 U CN 208024654U
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- sealing
- main body
- piston packing
- universal wheel
- 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
Links
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- Sealing Devices (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a kind of piston packing rings, it includes sealing ring main body（1）, sealing ring main body（1）Middle part offer threaded hole（2）, sealing ring main body（1）Outer cover be equipped with sealing ring（3）, sealing ring（3）Left part offer concave shaped cavity（4）, sealing ring（3）Outer surface be curved surface, the upper end of curved surface and concave shaped cavity（4）Upper end formed sealing（5）, each holder（6）Upper equal flexural pivot has universal wheel（7）, universal wheel（7）Positioned at sealing ring（3）Right side, the sealing ring（3）Cylinder on and around threaded hole（2）Circumferencial direction offer multiple radial oil collecting holes（8）.The utility model has the beneficial effects that：It is compact-sized, service life is long, sealing is tight, flexible flexible, anti-seal ring " suppressing dead ", sealing effect are good.
Description
Technical field
The utility model is related to the technical field of seal ring structure, especially a kind of piston packing ring.
Background technology
Oil cylinder is the most commonly seen part of hydraulic drive, and oil cylinder includes cylinder barrel 10, piston rod 9 and piston 11, the piston
Bar is threadedly coupled with piston 11, and the outside of piston 11 is equipped with sealing ring 12, and sealing ring 12 is bonded such as Fig. 1 with the inner wall of cylinder barrel 10
Shown, piston rod 9 pushes piston 11 in cylinder barrel 10 in moving process, sealing ring 12 can prevent the hydraulic oil in cylinder barrel 10 by
Dynamic sealing is formed in one chamber leaks to another chamber.Therefore sealing ring is the important composition component of cylinder seal.However,
Since sealing ring 12 and cylinder barrel 10 are curved surface and curved face contact, if arrow direction as shown in Figure 1 when piston rod is by torsion, will lead
Fine and close seal ring 12 " suppress dead ", then it is axial then very laborious when pushing piston rod 9.Additionally due to sealing ring 12 is curved surface with cylinder barrel 10
With curved face contact, cause frictional force big, can not achieve the flexible stretching or retraction of piston rod.That therefore there is an urgent need for one kind is flexible flexibly,
Anti-seal ring suppresses dead sealing ring.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the prior arts, provide it is a kind of it is compact-sized, service life is long, close
Obturage the good piston packing ring of close, flexible, the anti-seal ring that stretches " suppressing dead ", sealing effect.
The purpose of this utility model is achieved through the following technical solutions：A kind of piston packing ring, it includes sealing ring master
Body offers threaded hole in the middle part of the sealing ring main body, and the outer cover of the sealing ring main body is equipped with sealing ring, sealing ring
Left part offers concave shaped cavity, and the outer surface of sealing ring is curved surface, and the upper end of curved surface and the upper end of concave shaped cavity, which are formed, to be sealed
Portion, the outside of the sealing ring and the circumferencial direction around sealing ring are provided with multiple holders, on each holder flexural pivot have it is universal
Wheel, universal wheel are located at the right side of sealing ring, and multiple diameters are offered on the cylinder of the sealing ring and around the circumferencial direction of threaded hole
To oil collecting hole.
The universal wheel is uniformly distributed on sealing ring.
The radial direction oil collecting hole is uniformly distributed on sealing ring.
The section of the sealing ring is crescent.
The axis of the sealing ring is arranged with the axis coaxle of sealing ring main body.
The utility model has the following advantages：The utility model is compact-sized, service life is long, sealing is tight, flexible spirit
Living, anti-seal ring " suppressing dead ", sealing effect are good.
Description of the drawings
Fig. 1 is the scheme of installation of existing sealing ring and piston；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the left view of Fig. 2；
Fig. 4 is the operating diagram of the utility model；
In figure, 1- sealing ring main bodys, 2- threaded holes, 3- sealing rings, 4- concave shaped cavities, 5- sealings, 6- holders, 7- is universal
Wheel, 8- radial direction oil collecting holes, 9- piston rods, 10- cylinder barrels, 11- pistons, 12- sealing rings.
Specific implementation mode
The utility model is further described below in conjunction with the accompanying drawings, the scope of protection of the utility model be not limited to
It is lower described：
As shown in Fig. 2 ~ 3, a kind of piston packing ring, it includes sealing ring main body 1, and the middle part of the sealing ring main body 1 is opened
Equipped with threaded hole 2, the outer cover of the sealing ring main body 1 is equipped with sealing ring 3, the axis of the axis and sealing ring main body 1 of sealing ring 3
Line is coaxially disposed, and the left part of sealing ring 3 offers concave shaped cavity 4, and the outer surface of sealing ring 3 is curved surface, the upper end of curved surface with
The upper end of concave shaped cavity 4 forms sealing 5, the outside of the sealing ring 3 and circumferencial direction around sealing ring 3 is provided with multiple
Frame 6, flexural pivot has a universal wheel 7 on each holder 6, and in the present embodiment, the universal wheel 7 is uniformly distributed on sealing ring 3, universal
Wheel 7 offers multiple radial collection on the right side of sealing ring 3, the cylinder of the sealing ring 3 and around the circumferencial direction of threaded hole 2
Oilhole 8, radial oil collecting hole 8 are used to mitigate the weight of entire sealing ring, while can also collect the hydraulic oil of leakage.
As shown in Fig. 2 ~ 3, in the present embodiment, the radial direction oil collecting hole 8 is uniformly distributed on sealing ring 3.The sealing ring 3
Section be crescent.
The course of work of the utility model is as follows：In use, first by 2 screw thread of threaded hole of piston rod 9 and sealing ring main body 1
Connection, then the sealing ring is inserted into cylinder barrel 10, keep universal wheel 7 tangent with 10 inner wall of cylinder barrel, while making sealing 5 and cylinder
Cylinder 10 inner walls it is tangent, to realize the sealing ring installation as shown in figure 4, to the left push piston rod 9 when, sealing ring 3 compress
Hydraulic oil in cylinder barrel 10, hydraulic oil are flowed along the inner wall of concave shaped cavity 4, and the direction of hydraulic oil is changed, and hydraulic energy obtains
Consumption, and then reduce hydraulic oil to the impact force of sealing 5, it avoids sealing 5 by erosion, effectively prevents hydraulic oil from sealing
It is leaked in gap between 10 inner wall of portion 5 and cylinder barrel, there is sealing tightly, feature with long service life.When piston rod 9 is by outer
When boundary's torsion, since sealing 5 and 10 contact area of cylinder barrel are small, sealing ring 3 can be rotated with piston rod 9, to keep away
Exempt from " suppressing dead " phenomenon occur, sealing ring is protected well.Further, since sealing 5 and 10 contact area of cylinder barrel are small, it is close
Frictional force between seal ring and cylinder barrel 10 is small, can ensure the flexible stretching or retraction of piston rod.
Claims (5)
1. a kind of piston packing ring, it is characterised in that：It includes sealing ring main body（1）, the sealing ring main body（1）Middle part open
Equipped with threaded hole（2）, the sealing ring main body（1）Outer cover be equipped with sealing ring（3）, sealing ring（3）Left part offer
Concave shaped cavity（4）, sealing ring（3）Outer surface be curved surface, the upper end of curved surface and concave shaped cavity（4）Upper end formed sealing
（5）, the sealing ring（3）Outside and around sealing ring（3）Circumferencial direction be provided with multiple holders（6）, each holder（6）On
Equal flexural pivot has universal wheel（7）, universal wheel（7）Positioned at sealing ring（3）Right side, the sealing ring（3）Cylinder on and around screw thread
Hole（2）Circumferencial direction offer multiple radial oil collecting holes（8）.
2. a kind of piston packing ring according to claim 1, it is characterised in that：The universal wheel（7）It is uniformly distributed in close
Seal（3）On.
3. a kind of piston packing ring according to claim 1, it is characterised in that：The radial direction oil collecting hole（8）It is uniformly distributed
In sealing ring（3）On.
4. a kind of piston packing ring according to claim 1, it is characterised in that：The sealing ring（3）Section be crescent moon
Shape.
5. a kind of piston packing ring according to claim 4, it is characterised in that：The sealing ring（3）Axis and sealing
Ring main body（1）Axis coaxle setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820470131.XU CN208024654U (en) | 2018-04-04 | 2018-04-04 | A kind of piston packing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820470131.XU CN208024654U (en) | 2018-04-04 | 2018-04-04 | A kind of piston packing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208024654U true CN208024654U (en) | 2018-10-30 |
Family
ID=63909463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820470131.XU Expired - Fee Related CN208024654U (en) | 2018-04-04 | 2018-04-04 | A kind of piston packing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208024654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296592A (en) * | 2018-12-04 | 2019-02-01 | 武汉科技大学 | A kind of piston assembly for high pressure low friction hydraulic cylinder |
-
2018
- 2018-04-04 CN CN201820470131.XU patent/CN208024654U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296592A (en) * | 2018-12-04 | 2019-02-01 | 武汉科技大学 | A kind of piston assembly for high pressure low friction hydraulic cylinder |
| CN109296592B (en) * | 2018-12-04 | 2023-12-22 | 武汉科技大学 | Piston assembly for high-pressure low-friction hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181030 Termination date: 20200404 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |