CN103090008A - Rotary seal lip type seal ring assembly for rotating shaft - Google Patents
Rotary seal lip type seal ring assembly for rotating shaft Download PDFInfo
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- CN103090008A CN103090008A CN2013100325225A CN201310032522A CN103090008A CN 103090008 A CN103090008 A CN 103090008A CN 2013100325225 A CN2013100325225 A CN 2013100325225A CN 201310032522 A CN201310032522 A CN 201310032522A CN 103090008 A CN103090008 A CN 103090008A
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- lip
- assembly
- seal ring
- sealing
- running shaft
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Abstract
The invention provides a rotary seal lip type seal ring assembly for a rotating shaft. The rotary seal lip type seal ring assembly for the rotating shaft comprises a seal ring framework assembly and a rotating shaft seal lip assembly. The rotating shaft seal lip assembly comprises a steel-iron framework and a sealing lip, the inner side of the steel-iron framework is tightly matched with the rotating shaft and rotates along with the rotating shaft, and the sealing lip is fixedly arranged on the other side of the steel-iron framework and matched with the inner side wall of the seal ring framework assembly. The design differs from the prior art, the steel-iron framework is arranged tightly attached to the rotating shaft side, the sealing lip is arranged on the other side of the steel-iron framework, and thus the problem of oil leakage on-site generation caused by enclasping force weakening brought when the sealing lip rotates along with the rotating shaft can be effectively prevented, an effective seal effect can be kept for a long time, occurrence of an oil leakage phenomenon is avoided, the oil leakage phenomenon is greatly reduced or eliminated, energy resources are saved, cost performance is high, and a hope for thoroughly solving dynamic seal oil leakage is brought.
Description
Technical field
The present invention relates to a kind of seal arrangement, refer to especially to provide a kind of novel sealing structure of rotary dynamic seal of rotary seal lip, is the Novel rotary sealing lip formula running shaft seal ring assembly with good motive sealing effect.
Background technique
Before the present invention, seal ring assembly in prior art, be commonly called as oil sealing, it is all the sealing lip static sealing, namely when running shaft rotates, sealing lip is close on attached running shaft, axle is radially held tightly and is sealed by sealing lip, if sealing lip to axle radially enclasping force change and weaken oily medium and will the rotation of conrotatory rotating shaft axial plane spill.
See also Figure 14 and shown in Figure 15, oil sealing lip 26(sealing lip) and dust excluder lips 6 be close on running shaft 7, axle is radially held tightly and is sealed by it.In reality is used, oil sealing can be pressed tiltedly and press inclined to one side unavoidably during due to installation, thereby 24 pairs of axles of the lip of oil sealing lip will bias cause the contact sealing surface effectively to hold tightly axle and enclasping force weakens, weaken owing in making production oil sealing process, oil sealing lip the quality control also unstable thereby lip oil sealing lip being changed to the axle enclasping force simultaneously, therefore oil leakage phenomenon will often occur, the energy is also wasted, the sexual valence ratio.
Summary of the invention
Technical problem solved by the invention is to overcome deficiency of the prior art, and a kind of rotary seal lip formula running shaft seal ring assembly with good rotary dynamic seal effect is provided.
The invention provides a kind of rotary seal lip formula running shaft seal ring assembly, comprise seal ring frame assembly and rotary seal lip assembly, wherein, this rotation axis seal lip assembly comprises iron and steel skeleton and sealing lip, described iron and steel skeleton inboard tightly fits in running shaft and rotates with running shaft, and described sealing lip is fixedly installed on iron and steel skeleton opposite side and is matched with seal ring skeleton madial wall.
The present invention proposes a kind of novel dynamic rotary seal concept, the iron and steel skeleton is close to the rotation shaft side setting, prevents that effectively the enclasping force that causes in the rotary course of sealing lip with axle from weakening problem, the sealing effect of remaining valid for a long time.
In the present invention, the iron and steel skeleton is L-type, comprises longitudinal edge and horizontal edge, and longitudinal edge is arranged at rotation shaft side, and horizontal edge is fixedly installed sealing lip to away from the rotation shaft side setting on horizontal edge.The iron and steel skeleton of this structure, can be firm be close to running shaft, and for sealing lip provides effective support and link position, and conveniently coordinate with the seal ring skeleton.
In the present invention, the cooperation of the lip of sealing lip is attached at seal ring frame assembly madial wall, can effectively guarantee good sealing effect.
In the present invention, the lip material of sealing lip is the polytetrafluoroethylene (PTFE) composite, teflon can be compound with materials such as carbon fiber reinforce plastic powder or glass fiber powders, the elasticity of increase sealing lip and lip and anti-wear, also can be compound with carbon dust or molybdenum disulfide, can increase the lubricity of lip.Different needs according to reality meet different materials, and sealing effect more targetedly is provided, and provide the multiple choices scheme for the user.Certainly, the lip material of sealing lip also can be quality of rubber materials.
In order to increase the sealing effect between iron and steel skeleton and running shaft, described iron and steel skeleton inner radius is equipped with the built-in rubber clad.
In addition, the seal ring frame assembly in the present invention comprises outer skeleton and inner frame, and inner frame external diameter and outer skeleton internal diameter drive fit form split type seal ring skeleton.
In addition, sealing ring framework assembly inner frame, oil pocket side is provided with return opening.
In addition, sealing ring framework assembly inner frame front end place is provided with the oily lip of gear.
In addition, also include oil sealing base in the present invention, sealing circle assembly coordinates with oil sealing base becomes integral body.
in sum, the present invention also has following advantage: rotary seal lip formula running shaft seal ring assembly of the present invention, collection rotary seal lip assembly and seal ring frame assembly are an integral body, courageously adopted the novel sealing theory of the rotary dynamic seal of rotary seal lip, give full play to the characteristic of the rotary dynamic seal of rotary seal lip, during rotation, oily medium is got rid of gear outside seal lip, the lip of rotary seal simultaneously adopts the internal diameter seize static sealing of the adherent rotary dynamic seal of external diameter rather than conventional seals circle assembly, this additional motive sealing characteristic has strengthened the motive sealing effect of rotary seal lip formula running shaft with the seal ring assembly more, sealing lip hydraulic performance decline in the time of can avoiding conventional seals circle assembly sealing lip static sealing and oil leakage phenomenon that the seal failure that causes oil medium conrotatory rotating shaft axial plane spills, the generation that can greatly reduce the oil leakage fault rate or stop oil leakage phenomenon, energy saving, cost performance is high, thoroughly solve the motive sealing leakage of oil for simultaneously the client and brought hope.
Wherein, the seal ring frame assembly can adopt split-type design also can adopt the integral type design, and multiple type of service and scheme are provided, and has more general adaptability.Also can be coated with external rubber adhesive or be equipped with the built-in rubber clad in iron and steel skeleton inner radius simultaneously outside its outer radius portion, make the effect of sealing have more advantage, improve simultaneously the life-span of iron and steel skeleton.
Description of drawings
Fig. 1 is the overall structure schematic diagram that rotary seal lip formula running shaft of the present invention is used the seal ring assembly.
Fig. 2 is the split type structural representation that the seal ring frame assembly of rubber adhesive is arranged of the present invention.
Fig. 3 is the structural representation of the split type seal ring frame assembly of the present invention.
Fig. 4 is the structural representation of the split type seal ring frame assembly without rubber adhesive of the present invention.
Fig. 5 is the structural representation of integrated sealing ring framework assembly of the present invention.
Fig. 6 is seal ring frame assembly perspective view of the present invention.
Fig. 7 to Figure 10 is each structural representation of rotary seal lip assembly in the present invention.
Figure 11 and Figure 12 are rotary seal lip formula running shaft of the present invention with the partial schematic sectional view with oil sealing base structure of seal ring assembly.
Figure 13 is the partial structurtes schematic perspective view that rotary seal lip formula running shaft of the present invention is used the seal ring assembly.
Figure 14 is the perspective view of existing seal ring assembly.
Figure 15 is installed on the structural representation of rotation shaft side for existing seal ring assembly.
The figure number explanation:
1, rotary seal lip assembly; 2, seal ring frame assembly; 3, sealing lip; 4, iron and steel skeleton; 5, built-in rubber clad; 6, dust excluder lips; 7, running shaft; 8, dust-break lip; 9, front end; 10, rear end; 11, external rubber adhesive; 12, outer radius portion; 13, front end side; 14, side, rear end; 15, quality of rubber materials rotary seal lip; 16, polytetrafluoroethylene (PTFE) composite rotary seal lip; 17, return opening; 18, madial wall; 19, outer skeleton; 20, inner frame; 21, housing lumen orifice; 22, oil sealing base lumen orifice; 23, oil sealing base; 24, rotary seal lip; 25, flange; 26, oil sealing lip; 27, housing; 28, atmospheric side; 29, oily side (in oil pocket); 30, metal body; 31, opening.
Embodiment
Rotary seal lip formula running shaft seal ring assembly of the present invention, it comprises rotary seal lip assembly 1 and seal ring frame assembly 2.In the present invention, Fig. 2 to Fig. 5 is the different structure example of seal ring frame assembly 2, and Fig. 7 to Figure 10 is the example of the different structure of rotary seal lip assembly 1 in the present invention.The structure that below will introduce in detail each constituent element and different examples forms.
See also shown in Figure 2ly, sealing ring framework assembly 2 has outer radius portion 12, front end side 13, side, rear end 14 and inwall 18, and this side, rear end 14 is the flange 25 of bending upwards.Form the concave structure with opening 31 between outer radius portion 12, front end side 13 and side, rear end 14.
Fig. 2, Fig. 3 and Fig. 4 are split type seal ring frame assembly, and it is the split type concave structure that is made of outer skeleton 19 and inner frame 20.The cross-section of outer skeleton 19 is inverted L-shaped, its upper surface 191 and the first vertical setting of vertical plane 192, and upper surface 191 has formed side, rear end 14.The cross-section of inner frame 20 is L shaped, and its lower surface 201 has formed front end side 13, and the second vertical plane 202 of outer skeleton 19 first vertical planes 192 and inner frame 20 consists of outer radius portion 12 mutually against applying.The first vertical plane 192 upwards bending is provided with the 3rd vertical plane 193, as flange 25 parts of assembly.
Or as shown in Figure 3, sealing ring framework assembly 2 is integrated the skeletal structure of making, and has outer radius portion 12, front end side 13, side, rear end 14, and this side, rear end 14 is connected with the upwards flange 25 of bending.
As shown in Figure 2, the outer radius portion 12 of sealing ring framework assembly 2 is coated with external rubber adhesive 11.And Fig. 3, Fig. 4 and Fig. 5 are the assembly structure without rubber adhesive.
As shown in Figure 6,13 places, front end side of sealing ring framework assembly 2 are provided with return opening 17, can make oily medium back flow to casing, have alleviated the pressure of rotary seal lip 3 motive sealings, guarantee are provided further for 3 dynamic seal (packing)s of rotary seal lip.If be split type seal ring skeleton, its inner frame, oil pocket side is provided with return opening.
Fig. 7 is to shown in Figure 10, it is for each structural representation of rotary seal lip assembly 1, it comprises sealing lip 3 and iron and steel skeleton 4, and iron and steel skeleton inboard tightly fits in running shaft and rotates with running shaft, and described sealing lip is fixedly installed on iron and steel skeleton opposite side and is matched with seal ring skeleton madial wall.According to the difference of position, this rotary seal lip assembly comprises front end 9 and rear end 10.As shown in Figure 9, the cross section of iron and steel skeleton 4 is inverted L-shaped, comprises longitudinal edge 41 and horizontal edge 42, and longitudinal edge 41 is arranged at rotation shaft side, and horizontal edge 42 is fixedly installed sealing lip to away from the rotation shaft side setting on horizontal edge.Its longitudinal edge that has 41 is arranged at running shaft 7 sides, with the vertically disposed horizontal edge 42 of longitudinal edge 41 to extending away from the axle side, sealing lip 3 parts are adhered fixed on iron and steel skeleton 4, it can be as shown in Figure 7, major part coats the upper of horizontal edge 42, or as shown in Figure 9, is arranged at the outer side surface of horizontal edge 42, or as shown in Figure 8, directly be adhered fixed the end in horizontal edge 41.Sealing lip 3 another part snug fit are in seal ring frame assembly inwall place 18.
In Fig. 7, sealing lip 3 is the polytetrafluoroethylene (PTFE) composite, teflon can meet with materials such as carbon fiber reinforce plastic powder or glass fiber powders, the elasticity of increase sealing lip and lip and anti-wear also can be compound with carbon dust or molybdenum disulfide, can increase the lubricity of lip.Different needs according to reality meet different materials, and sealing effect more targetedly is provided, and provide the multiple choices scheme for the user.
In Fig. 8, sealing lip 3 is quality of rubber materials rotary seal lip 15, and in Fig. 9, iron and steel skeleton 4 inner radius are without the rubber adhesive structure.
In order to strengthen the sealing effect between iron and steel skeleton 4 and running shaft 7, as shown in figure 10, these iron and steel skeleton 4 inner radius are equipped with built-in rubber clad 5.
Again as shown in Figure 1, flange 25 places can be provided with a grade dirt lip 8, are provided with dust excluder lips 6 between running shaft 7, iron and steel skeleton 4 and flange 25.As shown in Fig. 1,7, this dust excluder lips 6, built-in rubber clad 5 can be made into integration.As shown in Figure 9, sealing lip 3 and dust excluder lips 6 can be made into integration.As shown in figure 10, sealing lip 3, dust excluder lips 6 and built-in rubber clad 5 can be made into integration.Rotary seal lip assembly 1 is arranged at the inboard of seal ring frame assembly 2.
Simultaneously, see also Figure 11, shown in Figure 12, described rotary seal lip formula running shaft seal ring assembly, more can match with oil sealing base 23 and become an integral body, the deficiency that press-fits tiltedly, presses the motive sealing inefficacy eccentric, that damage causes, static seal to descend that can avoid oil sealing base 23 and the split type combination package assembly of seal ring assembly to bring, thus bulking property improves property easy for installation and sealing effect.
As shown in figure 13, in the rotary course of axle, the a part of snug fit of described iron and steel skeleton 4 is rotated in running shaft 7 and with axle, sealing ring framework assembly outer radius portion 12 snug fit are in housing lumen orifice 21(or oil sealing base lumen orifice 22), sealing ring framework assembly 2 front end side 13 parts coordinate with rotary seal lip assembly 1 front end 9 parts, and sealing ring framework assembly 2 side, rear end 14 parts coordinate with rotation axis seal lip 1 rear end 10 parts.
this rotary seal lip assembly 1 is the novel sealing theory of carrying out motive sealing when rotating with running shaft, be compared to sealing lip 3 static state of the prior art and be attached at static sealing theory on running shaft 7, adopt rotary seal lip formula running shaft seal ring assembly of the present invention, sealing lip hydraulic performance decline in the time of can avoiding conventional seals circle assembly sealing lip static sealing and oil leakage phenomenon that the seal failure that causes oil medium conrotatory rotating shaft 7 axial planes spill, give full play to the characteristic of the rotary dynamic seal of rotary seal lip 3 of the present invention, during rotation, oily medium is got rid of gear outside seal lip 24, the lip of rotary seal simultaneously 3 adopts the static sealing of the internal diameter seize of adherent 18 rotary dynamic seals of external diameter rather than conventional seals circle assembly, this additional motive sealing characteristic has strengthened the motive sealing effect of rotary seal lip formula running shaft with the seal ring assembly more, the generation that can greatly reduce the oil leakage fault rate or stop oil leakage phenomenon, energy saving, cost performance is high, thoroughly solve the motive sealing leakage of oil for simultaneously the client and brought hope.
Claims (10)
1. rotary seal lip formula running shaft seal ring assembly, comprise seal ring frame assembly and rotary seal lip assembly, it is characterized in that: this rotation axis seal lip assembly comprises iron and steel skeleton and sealing lip, described iron and steel skeleton inboard tightly fits in running shaft and rotates with running shaft, and described sealing lip is fixedly installed on iron and steel skeleton opposite side and is matched with seal ring skeleton madial wall.
2. rotary seal lip formula running shaft seal ring assembly as claimed in claim 1, it is characterized in that: this iron and steel skeleton comprises longitudinal edge and horizontal edge, longitudinal edge is arranged at rotation shaft side, and horizontal edge is fixedly installed sealing lip to away from the rotation shaft side setting on horizontal edge.
3. rotary seal lip formula running shaft seal ring assembly as claimed in claim 1 is characterized in that: the lip of sealing lip coordinates and is attached at seal ring frame assembly madial wall.
4. rotary seal lip formula running shaft seal ring assembly as claimed in claim 1, it is characterized in that: the lip material of sealing lip is the polytetrafluoroethylene (PTFE) composite.
5. rotary seal lip formula running shaft seal ring assembly as claimed in claim 1, it is characterized in that: the lip material of sealing lip also can be quality of rubber materials.
6. rotary seal lip formula running shaft seal ring assembly as claimed in claim 1, it is characterized in that: this iron and steel skeleton inner radius is equipped with the built-in rubber clad.
7. rotary seal lip formula running shaft seal ring assembly as claimed in claim 1, it is characterized in that: sealing ring framework assembly comprises outer skeleton and inner frame, inner frame external diameter and outer skeleton internal diameter drive fit.
8. rotary seal lip formula running shaft seal ring assembly as claimed in claim 1 is characterized in that: sealing ring framework assembly inner frame, oil pocket side is provided with return opening.
9. rotary seal lip formula running shaft seal ring assembly as claimed in claim 1 is characterized in that: sealing ring framework assembly inner frame front end place is provided with the oily lip of gear.
10. as the described rotary seal lip of arbitrary right formula running shaft seal ring assembly in claim 1-9, it is characterized in that: also include oil sealing base, sealing circle assembly coordinates with oil sealing base becomes integral body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100325225A CN103090008A (en) | 2013-01-25 | 2013-01-25 | Rotary seal lip type seal ring assembly for rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100325225A CN103090008A (en) | 2013-01-25 | 2013-01-25 | Rotary seal lip type seal ring assembly for rotating shaft |
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| Publication Number | Publication Date |
|---|---|
| CN103090008A true CN103090008A (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100325225A Pending CN103090008A (en) | 2013-01-25 | 2013-01-25 | Rotary seal lip type seal ring assembly for rotating shaft |
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| Country | Link |
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| CN (1) | CN103090008A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277520A (en) * | 2013-05-23 | 2013-09-04 | 温州恒阳汽车科技有限公司 | Wide contacting lip surface rubber sealing ring for rotating shaft |
| 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 |
| CN110296217A (en) * | 2019-07-17 | 2019-10-01 | 宁波方力密封件有限公司 | A kind of kettle lip seal apparatus |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2567981A1 (en) * | 1984-07-20 | 1986-01-24 | Hutchinson | Improvements to sealing joints with a lip |
| CN2818933Y (en) * | 2005-08-24 | 2006-09-20 | 徐利阳 | Teflon labiate sealed ring of rotation axis |
| CN2883813Y (en) * | 2005-11-16 | 2007-03-28 | 安徽省宁国中鼎股份有限公司 | Rotary shaft seal of autocar air conditioner compressor |
| CN101699105A (en) * | 2009-11-16 | 2010-04-28 | 青岛开世密封工业有限公司 | Boxy hub slush-preventing oil seal |
| CN201963883U (en) * | 2010-12-17 | 2011-09-07 | 哈尔滨东安实业发展有限公司 | Speed changer oil seal with oil return groove structure |
| CN203067785U (en) * | 2013-01-25 | 2013-07-17 | 徐利阳 | Sealing ring assembly for rotary seal lip-type rotating shaft |
-
2013
- 2013-01-25 CN CN2013100325225A patent/CN103090008A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2567981A1 (en) * | 1984-07-20 | 1986-01-24 | Hutchinson | Improvements to sealing joints with a lip |
| CN2818933Y (en) * | 2005-08-24 | 2006-09-20 | 徐利阳 | Teflon labiate sealed ring of rotation axis |
| CN2883813Y (en) * | 2005-11-16 | 2007-03-28 | 安徽省宁国中鼎股份有限公司 | Rotary shaft seal of autocar air conditioner compressor |
| CN101699105A (en) * | 2009-11-16 | 2010-04-28 | 青岛开世密封工业有限公司 | Boxy hub slush-preventing oil seal |
| CN201963883U (en) * | 2010-12-17 | 2011-09-07 | 哈尔滨东安实业发展有限公司 | Speed changer oil seal with oil return groove structure |
| CN203067785U (en) * | 2013-01-25 | 2013-07-17 | 徐利阳 | Sealing ring assembly for rotary seal lip-type rotating shaft |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277520A (en) * | 2013-05-23 | 2013-09-04 | 温州恒阳汽车科技有限公司 | Wide contacting lip surface rubber sealing ring for rotating shaft |
| 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 |
| CN110296217A (en) * | 2019-07-17 | 2019-10-01 | 宁波方力密封件有限公司 | A kind of kettle lip seal apparatus |
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Application publication date: 20130508 |