CN207005294U - A kind of piston ring for rotating shaft sealing - Google Patents
A kind of piston ring for rotating shaft sealing Download PDFInfo
- Publication number
- CN207005294U CN207005294U CN201720682174.XU CN201720682174U CN207005294U CN 207005294 U CN207005294 U CN 207005294U CN 201720682174 U CN201720682174 U CN 201720682174U CN 207005294 U CN207005294 U CN 207005294U
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- piston ring
- sealing
- pad spring
- rotating shaft
- pad
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Abstract
The utility model discloses a kind of piston ring for rotating shaft sealing, sealing piston ring body including cirque structure, the axial end portion of the sealing piston ring body is provided with sealing flange lip, the sealing flange lip is arranged at the annular inboard edge of the sealing piston ring body, and the internal diameter of the sealing flange lip is less than the internal diameter of the sealing piston ring body；The sealing piston ring body, in be additionally provided with the pad spring installation cavity of annular hollow structure, be provided with piston ring pad spring in the pad spring installation cavity.A kind of piston ring for rotating shaft sealing provided by the utility model, the whole service life of rotating shaft sealing piston ring can be improved, rotating shaft sealing piston ring and the seal wear-resistant performance in shaft contacts face are improved, so as to reduce the replacement frequency of rotating shaft sealing piston ring and use cost.
Description
Technical field
It the utility model is related to a kind of rotating shaft sealing product technical field, particularly a kind of piston for rotating shaft sealing
Ring.
Background technology
In the prior art be used for rotating shaft sealing piston ring, due to being contacted for a long time with rotating shaft sealing, thus wear it is more serious,
Replacement frequency is higher, causes the use cost of piston ring higher, can also be deposited not in time additionally due to the piston ring after abrasion is changed
In the risk of rotating shaft sealing deficiency, the performance and use of product normal function have impact on.In addition, conventional rotating shaft sealing ring one
As and bearing pairing use because bearing beat abrasion, concentricity issues, cause axle rotation produce beat, cause to seal
Ring reaming, it have impact on the sealing effectiveness of rotating shaft.Again, conventional rotating shaft sealing piston ring is usually elastic caoutchouc or thermoplastic elastomehc
Property plastics be made, it is long-term use of after rotating shaft sealing piston ring made of elastic caoutchouc or thermoelastiomer plastic can occur under elasticity
Drop and the situation of abrasion, so as to have impact on the sealing of rotating shaft sealing piston ring, cause the overall use of rotating shaft sealing piston ring
Life-span is not grown.For this reason, it is necessary to provide a kind of rotating shaft sealing piston ring of new structure, it is possible to increase rotating shaft sealing piston ring
Whole service life, rotating shaft sealing piston ring and the seal wear-resistant performance in shaft contacts face are improved, lived so as to reduce rotating shaft sealing
The replacement frequency and use cost of plug ring.
The content of the invention
For overcome the deficiencies in the prior art, the utility model provides a kind of piston ring for rotating shaft sealing, can
The whole service life of rotating shaft sealing piston ring is improved, improves rotating shaft sealing piston ring and the seal wear-resistant in shaft contacts face
Can, so as to reduce the replacement frequency of rotating shaft sealing piston ring and use cost.
Technical scheme is used by the utility model solves its technical problem：
A kind of piston ring for rotating shaft sealing, include the sealing piston ring body of cirque structure, the sealing piston
The axial end portion of ring body is provided with sealing flange lip, and the sealing flange lip is arranged at the sealing piston ring body
Annular inboard edge, and the internal diameter of the sealing flange lip is less than the internal diameter of the sealing piston ring body；The sealing
Piston ring body, in be additionally provided with the pad spring installation cavity of annular hollow structure, set in the pad spring installation cavity
There is piston ring pad spring.
As the further improvement of above-mentioned technical proposal, between the sealing flange lip and the sealing piston ring body
Separated by lip annular incision, the axis of described lip annular incision and the axis collinear of the sealing piston ring body, and
The external diameter of described lip annular incision is more than the internal diameter of the sealing piston ring body and less than the sealing piston ring body
External diameter.The external diameter of described lip annular incision refers to the sealing flange lip and sealing piston ring body connection and separated
The diameter of critical point opening position.
As the further improvement of above-mentioned technical proposal, the piston ring pad spring is the flexure strip of V-arrangement extended structure
Material, is provided with some pad separation gaps on the piston ring pad spring, some pad separation gap spaced sets,
And plane where each pad separation gap is each perpendicular to the bearing of trend of the piston ring pad spring；Some pads
Piece separation gap is divided into the first separation gap and the second separation gap, first separation gap and the piston ring pad spring
A lateral edges be not connected to and connect another lateral edges of the piston ring pad spring, second separation gap and the work
One lateral edges of plug ring pad spring connect and are not connected to another lateral edges of the piston ring pad spring, and described first separates
Gap and second separation gap are arranged alternately.
As the further improvement of above-mentioned technical proposal, the axial end portion of the sealing piston ring body is provided with hollow out knot
The pad spring mounting groove of structure, the pad spring mounting groove connect the pad spring installation cavity.
As the further improvement of above-mentioned technical proposal, the sealing piston ring body by polytetrafluoroethylmaterial material or by
The polytetrafluoroethylmaterial material for being filled with filler is made, the filler be graphite, carbon fiber, copper, stainless steel, molybdenum disulfide,
Pi or alloy material.
Compared with prior art, the beneficial effects of the utility model are：
A kind of piston ring for rotating shaft sealing provided by the utility model, by setting piston ring pad spring, profit
Increase the sealing piston ring body elastic force retention time with the elastic force of piston ring pad spring, strengthen sealing, it is possible to increase turn
The whole service life of sealing piston ring；Flange lip is sealed by setting, even if the lip portion abrasion of sealing flange also can
Rotary shaft is bonded by sealing the automatic contraction of flange lip, ensures sealing, improves rotating shaft sealing piston ring and rotating shaft
The seal wear-resistant performance of contact surface, so as to reduce the replacement frequency of rotating shaft sealing piston ring and use cost.In addition, this practicality is new
The sealing piston ring body medial surface and shaft contacts face that type provides are larger, can play a part of bearing, utilize piston ring pad
The elasticity of spring come absorb rotary shaft it is micro eccentric and caused by swing.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of the utility model specific embodiment 1；
Fig. 2 is the structural representation of piston ring pad spring described in the utility model；
Fig. 3 is the structural representation of the utility model specific embodiment 2.
Embodiment
Specific embodiment 1
Referring to Figures 1 and 2, Fig. 1 and Fig. 2 is the structural representation of a specific embodiment provided by the utility model；This
A kind of piston ring for rotating shaft sealing that embodiment provides, include the sealing piston ring body 1 of cirque structure, the sealing
The axial end portion of piston ring body 1 is provided with sealing flange lip 2, and the sealing flange lip 2 is arranged at the sealing piston
The annular inboard edge of ring body 1, and the internal diameter of the sealing flange lip 2 is less than the interior of the sealing piston ring body 1
Footpath；The sealing piston ring body 1, in be additionally provided with the pad spring installation cavity 3 of annular hollow structure, the pad spring
Piston ring pad spring 4 is provided with installation cavity 3.Pass through between the sealing flange lip 2 and the sealing piston ring body 1
Lip annular incision 5 separates, the axis of described lip annular incision 5 and the axis collinear of the sealing piston ring body 1, and institute
The external diameter for stating lip annular incision 5 is more than the internal diameter of the sealing piston ring body 1 and less than the sealing piston ring body 1
External diameter.The piston ring pad spring 4 is the elastic sheet material of V-arrangement extended structure, if being provided with the piston ring pad spring 4
Dry pad separation gap, some pad separation gap spaced sets, and plane where each pad separation gap
It is each perpendicular to the bearing of trend of the piston ring pad spring 4；Some pad separation gaps are divided into the first separation gap 41
With the second separation gap 42, first separation gap 41 and a lateral edges of the piston ring pad spring 4 are not connected to and connected
Connect another lateral edges of the piston ring pad spring 4, second separation gap 42 and the one of the piston ring pad spring 4
Lateral edges connect and are not connected to another lateral edges of the piston ring pad spring 4, first separation gap 41 and described the
Two compartment gap 42 is arranged alternately.The axial end portion of the sealing piston ring body 1 is provided with the pad spring peace of engraved structure
Tankage 6, the pad spring mounting groove 6 connect the pad spring installation cavity 3.The sealing piston ring body 1 is by polytetrafluoro
Vinyl material or the polytetrafluoroethylmaterial material by being filled with filler are made, and the filler is graphite, carbon fiber, copper, no
Become rusty steel, molybdenum disulfide, pi or alloy material.
Specific embodiment 2
Reference picture 3, Fig. 3 are the structural representations of a specific embodiment provided by the utility model；The present embodiment provides
A kind of piston ring structure for rotating shaft sealing and specific embodiment 1 it is essentially identical, difference is the pad spring
Installation cavity 3 is multiple, and the diameter of multiple pad spring installation cavitys 3 is different and sequentially coaxially suit is set, Mei Gesuo
State and a piston ring pad spring 4 is provided with pad spring installation cavity 3.
The piston ring pad spring 4 is directly bent into circle during use, two-end-point is integrally welded, then passes through institute
State pad spring mounting groove 6 to be tucked into the pad spring installation cavity 3, be then attached to 1 set of the sealing piston ring body
In rotating shaft.
Above to it is of the present utility model preferably implement illustrated, certainly, the utility model can also use with
The different form of above-mentioned embodiment, what those skilled in the art were made on the premise of without prejudice to spirit of the invention etc.
Same conversion or corresponding change, should all belong in the scope of protection of the utility model.
Claims (6)
- A kind of 1. piston ring for rotating shaft sealing, it is characterised in that：Sealing piston ring body (1) including cirque structure, The axial end portion of the sealing piston ring body (1) is provided with sealing flange lip (2), and the sealing flange lip (2) is set Internal diameter in the annular inboard edge of the sealing piston ring body (1), and the sealing flange lip (2) is less than described close The internal diameter of seal piston ring body (1)；The sealing piston ring body (1), in be additionally provided with the pad bullet of annular hollow structure Spring installation cavity (3), piston ring pad spring (4) is provided with the pad spring installation cavity (3).
- A kind of 2. piston ring for rotating shaft sealing according to claim 1, it is characterised in that：The sealing flange lip (2) separated between the sealing piston ring body (1) by lip annular incision (5), the axle of the lip annular incision (5) Line and the axis collinear of the sealing piston ring body (1), and the external diameter of described lip annular incision (5) is more than the sealing and lived The internal diameter of plug ring body (1) and the external diameter for being less than the sealing piston ring body (1).
- A kind of 3. piston ring for rotating shaft sealing according to claim 1, it is characterised in that：The piston ring pad bullet Spring (4) is the elastic sheet material of V-arrangement extended structure, and some pad separation gaps are provided with the piston ring pad spring (4), if The pad separation gap spaced set is done, and plane where each pad separation gap is each perpendicular to the piston ring The bearing of trend of pad spring (4)；Some pad separation gaps are divided into the first separation gap (41) and the second separation gap (42), first separation gap (41) is not connected to a lateral edges of the piston ring pad spring (4) and is connected the work Another lateral edges of plug ring pad spring (4), the side of second separation gap (42) and the piston ring pad spring (4) Edge connects and is not connected to another lateral edges of the piston ring pad spring (4), first separation gap (41) and described Second separation gap (42) is arranged alternately.
- A kind of 4. piston ring for rotating shaft sealing according to claim 1, it is characterised in that：The sealpiston-ring sheet The axial end portion of body (1) is provided with the pad spring mounting groove (6) of engraved structure, and the pad spring mounting groove (6) connects institute State pad spring installation cavity (3).
- A kind of 5. piston ring for rotating shaft sealing according to claim 1, it is characterised in that：The sealpiston-ring sheet Body (1) is made up of polytetrafluoroethylmaterial material or the polytetrafluoroethylmaterial material by being filled with filler, the filler be graphite, Carbon fiber, copper, stainless steel, molybdenum disulfide, pi or alloy material.
- A kind of 6. piston ring for rotating shaft sealing according to claim 1, it is characterised in that：The pad spring installation Chamber (3) is multiple, and the diameter of multiple pad spring installation cavitys (3) is different and sequentially coaxially suit is set, Mei Gesuo State and a piston ring pad spring (4) is provided with pad spring installation cavity (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720682174.XU CN207005294U (en) | 2017-06-13 | 2017-06-13 | A kind of piston ring for rotating shaft sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720682174.XU CN207005294U (en) | 2017-06-13 | 2017-06-13 | A kind of piston ring for rotating shaft sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207005294U true CN207005294U (en) | 2018-02-13 |
Family
ID=61447472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720682174.XU Active CN207005294U (en) | 2017-06-13 | 2017-06-13 | A kind of piston ring for rotating shaft sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207005294U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864115A (en) * | 2019-10-31 | 2020-03-06 | 江门市鑫辉特种密封科技有限公司 | Multi-lip support dynamic sealing device |
| CN113567038A (en) * | 2021-07-13 | 2021-10-29 | 中山市富茂密封科技有限公司 | Pressure sensing metal diaphragm, pressure sensing diaphragm group and pressure gauge |
-
2017
- 2017-06-13 CN CN201720682174.XU patent/CN207005294U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110864115A (en) * | 2019-10-31 | 2020-03-06 | 江门市鑫辉特种密封科技有限公司 | Multi-lip support dynamic sealing device |
| CN113567038A (en) * | 2021-07-13 | 2021-10-29 | 中山市富茂密封科技有限公司 | Pressure sensing metal diaphragm, pressure sensing diaphragm group and pressure gauge |
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