CN220204665U - Double main lip combined oil seal - Google Patents
Double main lip combined oil seal Download PDFInfo
- Publication number
- CN220204665U CN220204665U CN202321978810.5U CN202321978810U CN220204665U CN 220204665 U CN220204665 U CN 220204665U CN 202321978810 U CN202321978810 U CN 202321978810U CN 220204665 U CN220204665 U CN 220204665U
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- China
- Prior art keywords
- carbon steel
- oil seal
- strength carbon
- groups
- lip
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- 229910000975 Carbon steel Inorganic materials 0.000 claims abstract description 46
- 239000010962 carbon steel Substances 0.000 claims abstract description 46
- 238000009434 installation Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 41
- 230000002265 prevention Effects 0.000 claims description 8
- 239000000428 dust Substances 0.000 claims description 5
- 239000001307 helium Substances 0.000 claims description 3
- 229910052734 helium Inorganic materials 0.000 claims description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 7
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 238000010030 laminating Methods 0.000 abstract description 3
- 210000002421 cell wall Anatomy 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 44
- 230000009471 action Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model relates to the technical field of oil seals, and discloses a double-main-lip combined oil seal which comprises a double-lip oil seal mechanism, wherein the double-lip oil seal mechanism is embedded and installed inside an installation groove formed in the outer surface of a telescopic rod and is positioned at a movable connection position between the telescopic rod and a telescopic sleeve; the utility model discloses double-lip oil blanket mechanism is including setting up the high strength carbon steel arc piece of inboard embedding installation in the mounting groove, and the surface of high strength carbon steel arc piece is pour and is provided with the rubber circle, and the surface of rubber circle is provided with two sets of seal lips, and one side of high strength carbon steel arc piece is provided with two sets of auxiliary assembly spare, the utility model has the advantages of simple to operate, it is effectual to design, difficult abnormal deformation takes place in the use, has solved conventional single-lip oil blanket when sealed, easily has the mounting structure unstable, or the laminating is incomplete when oil blanket and inslot wall are installed, oil blanket and cell wall atress are inhomogeneous, easily make the oil blanket take place sealed incomplete even problem of fracture phenomenon.
Description
Technical Field
The utility model relates to the technical field of oil seals, in particular to a double main lip combined oil seal.
Background
Oil seals are commonly used for shaft and bore couplings such as bearings, gears, clutches, etc. The main function of the device is to prevent lubricating oil, liquid or gas from leaking out from the gap of the connecting piece and protect the normal operation of the connecting piece.
In the prior art, a single-lip oil seal is often adopted for an oil seal used for a hydraulic telescopic rod, and a plurality of oil seals are adopted for mounting different functions; the oil seal is generally installed at least in two, one to prevent the leakage of the hydraulic oil from the inside and the other to prevent the dust from the outside from entering the inside.
However, during actual installation and use of the single-lip oil seal, there are the following problems: because the single-lip oil seal is required to be tightly screwed and embedded inside the opened oil seal mounting groove, when the section of the single-lip oil seal is circular, the oil seal is easy to roll out from the oil seal mounting groove, so that the mounting structure is unstable; when single lip oil blanket cross-section sets up to square, when installing the oil blanket to the oil blanket mounting groove, need prevent that oil blanket and inslot wall laminating are incomplete, if oil blanket and inslot wall laminating are incomplete in the use, can make the oil blanket take place abnormal deformation (abnormal deformation means that the oil blanket is in sealed removal, because of the atress is inhomogeneous, leads to self to take place abnormal distortion), oil blanket and cell wall atress are inhomogeneous, take place the oil blanket and seal thoroughly even cracked phenomenon, consequently, it is necessary to develop a two main lip combination type oil blanket.
Disclosure of Invention
The utility model aims to provide a double-main-lip combined oil seal, which solves the problems that a conventional single-lip oil seal is easy to have unstable mounting structure or incomplete bonding when the oil seal is mounted on the inner wall of a groove, and the oil seal and the groove wall are stressed unevenly, so that the oil seal is easy to have incomplete sealing and even fracture phenomenon.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a double-main-lip combined oil seal comprises a double-lip oil seal mechanism, wherein the double-lip oil seal mechanism is embedded and installed on the inner side of an installation groove formed in the outer surface of a telescopic rod and is positioned at a movable connection position between the telescopic rod and a telescopic sleeve;
the double-lip oil seal mechanism comprises a high-strength carbon steel arc block which is embedded and installed inside an installation groove, a rubber ring is arranged on the outer surface of the high-strength carbon steel arc block in a pouring mode, two groups of sealing lips are arranged on the outer surface of the rubber ring, two groups of auxiliary installation parts are arranged on one side of the high-strength carbon steel arc block, each sealing lip comprises a sealing ring and a connecting ring, a hollow cavity is formed in the sealing ring, high-pressure helium is injected into the inner side of the hollow cavity, and the sealing lips of the two groups are respectively used for oil leakage prevention and dust prevention.
Preferably, the high-strength carbon steel arc blocks are symmetrically provided with two groups.
Preferably, the outer side surface matrix of the high-strength carbon steel arc block is provided with a plurality of groups of protruding columns, the outer side surface of the high-strength carbon steel arc block is provided with threaded holes, and the outer surface of the high-strength carbon steel arc block is also subjected to rough treatment.
Preferably, the rubber ring is uniformly poured on the outer surfaces of the two groups of high-strength carbon steel arc blocks, and the two groups of high-strength carbon steel arc blocks are completely wrapped.
Preferably, through holes A are formed in two sides of the rubber ring, and the through holes A are communicated with the threaded holes.
Preferably, in the same sealing lip, three groups of sealing rings are arranged, two groups of connecting rings are arranged, and the connecting rings of the two groups are respectively arranged between the sealing rings of the three groups.
Preferably, the surface of the connection ring of one group is provided with a through hole B, and the through hole B is communicated with the through hole A and the threaded hole.
Preferably, the auxiliary mounting piece comprises a connecting rod arranged on one side of the high-strength carbon steel arc block, connecting threads are formed on the surface of one end of the connecting rod, the other end of the connecting rod is fixedly connected with a connecting ring, and the connecting threads penetrate through the through holes B and A at the outer side of the sealing lip and are in threaded connection with the threaded holes.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a double-main-lip combined oil seal, which is characterized in that a high-strength carbon steel arc block is arranged in a rubber ring, and the rubber ring is supported and shaped by the high-strength carbon steel arc block, so that the rubber ring is conveniently installed on the inner side of an installation groove, and the rubber ring and a sealing lip fixedly installed on the surface of the rubber ring can be uniformly attached to the inner side of the installation groove through the shaping effect of the high-strength carbon steel arc block, so that the sealing lip is not easy to deform abnormally in use.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view of a double-lip oil seal mechanism according to the present utility model;
FIG. 3 is a schematic diagram of a frying structure of the double-lip oil seal mechanism of the present utility model;
fig. 4 is a schematic diagram of a seal ring planing structure of the present utility model.
In the figure: 1. a telescopic rod; 11. a telescoping sleeve; 12. a mounting groove; 2. a double-lip oil seal mechanism; 21. a high strength carbon steel arc block; 211. a protruding column; 212. a threaded hole; 22. a rubber ring; 221. a through hole A; 23. a sealing lip; 231. a seal ring; 232. a connecting ring; 233. a through hole B; 234. a hollow cavity; 24. an auxiliary mounting member; 241. a connecting rod; 242. a connecting thread; 243. and a connecting ring.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
For a further understanding of the present utility model, the present utility model will be described in detail with reference to the drawings.
Referring to fig. 1, a double-main-lip combined oil seal comprises a double-lip oil seal mechanism 2, wherein the double-lip oil seal mechanism 2 is embedded and installed inside an installation groove 12 formed in the outer surface of a telescopic rod 1, and is positioned at a movable connection part between the telescopic rod 1 and a telescopic sleeve 11.
The utility model is further described below with reference to examples.
Example 1:
referring to fig. 2-4, a high-strength carbon steel arc block 21 is embedded and installed inside the installation groove 12, a rubber ring 22 is poured on the outer surface of the high-strength carbon steel arc block 21, two groups of sealing lips 23 are arranged on the outer surface of the rubber ring 22, two groups of auxiliary installation parts 24 are arranged on one side of the high-strength carbon steel arc block 21, the sealing lips 23 comprise a sealing ring 231 and a connecting ring 232, a hollow cavity 234 is arranged inside the sealing ring 231, high-pressure helium is injected inside the hollow cavity 234, the two groups of sealing lips 23 are respectively used for oil leakage prevention and dust prevention, two groups of high-strength carbon steel arc blocks 21 are symmetrically arranged, a plurality of groups of protruding columns 211 are arranged on the outer surface matrix of the high-strength carbon steel arc block 21, threaded holes 212 are formed on the outer surface of the high-strength carbon steel arc block 21, rough treatment is further carried out on the outer surface of the high-strength carbon steel arc block 21, the threaded holes 212 are used for connecting with the auxiliary installation parts 24, the rubber ring 22 is evenly poured on the outer surfaces of the two groups of high-strength carbon steel arc blocks 21, the two groups of high-strength carbon steel arc blocks 21 are completely wrapped, the contact area between the high-strength carbon steel arc blocks 21 and the rubber ring 22 is increased through the arrangement of a plurality of protruding columns 211, the rubber ring 22 can be more stably attached to the outer surfaces of the high-strength carbon steel arc blocks 21, through holes A221 are formed in two sides of the rubber ring 22, the through holes A221 are communicated with threaded holes 212, the same sealing lip 23 is internally provided with three groups of sealing rings 231, the two groups of connecting rings 232 are respectively arranged between the three groups of sealing rings 231, the connecting rings 232 are used for elastically connecting the three groups of sealing rings 231 and supporting the structural position of the sealing rings 231, through holes B233 are formed in the surface of one group of connecting rings 232, the through holes B233 are communicated with the through holes A221 and the threaded holes 212, a connecting rod 241 is connected to one side of the high-strength carbon steel arc block 21 in a threaded manner, a connecting thread 242 is formed on one end surface of the connecting rod 241, a connecting ring 243 is fixedly connected to the other end of the connecting rod 241, and the connecting thread 242 penetrates through the through hole B233 and the through hole A221 on the outer side of the sealing lip 23 and is in threaded connection with the threaded hole 212;
the using method comprises the following steps: firstly, establishing fixed connection with a high-strength carbon steel arc block 21 through four groups of auxiliary mounting pieces 24, adding a stress structure for mounting the high-strength carbon steel arc block 21, then connecting the high-strength carbon steel arc block 21 with a connecting ring 243 by using an expander, slightly expanding the two groups of high-strength carbon steel arc blocks 21 to two sides to expand a rubber ring 22 and a sealing lip 23, then embedding the high-strength carbon steel arc block 21, the rubber ring 22 on the surface and the sealing lip 23 into the inner side of a mounting groove 12, and then removing the four groups of auxiliary mounting pieces 24 to finish the mounting process of the double-lip oil seal mechanism 2;
working principle: the rubber ring 22 is subjected to the shaping action of the high-strength carbon steel arc block 21 and the auxiliary installation action of the auxiliary installation piece 24, so that the rubber ring 22 is naturally and completely embedded and attached to the inner side of the installation groove 12, and the rubber ring 22 and the sealing lip 23 fixedly installed on the surface of the rubber ring 22 cannot be deformed abnormally due to the shaping action of the high-strength carbon steel arc block 21; the telescopic rod 1 carries the sealing lip 23 deep into the inner wall of the telescopic sleeve 11, the hollow cavity 234 is formed in the inner side of the sealing ring 231, so that the sealing ring 231 is enabled to deform greatly, the sealing ring 231 and the inner wall of the telescopic sleeve 11 have larger contact area, the sealing effect is improved, in addition, the two lips are arranged, dust prevention and oil leakage prevention are further met, and the installation process is simplified and is convenient.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A double main lip combined oil seal is characterized in that: the telescopic rod comprises a double-lip oil seal mechanism (2), wherein the double-lip oil seal mechanism (2) is embedded and installed at the inner side of an installation groove (12) formed on the outer surface of the telescopic rod (1) and is positioned at the movable connection part between the telescopic rod (1) and a telescopic sleeve (11);
the double-lip oil seal mechanism (2) comprises a high-strength carbon steel arc block (21) which is embedded and installed inside an installation groove (12), a rubber ring (22) is arranged on the outer surface of the high-strength carbon steel arc block (21) in a pouring mode, two groups of sealing lips (23) are arranged on the outer surface of the rubber ring (22), two groups of auxiliary installation parts (24) are arranged on one side of the high-strength carbon steel arc block (21), the sealing lips (23) comprise sealing rings (231) and connecting rings (232), a hollow cavity (234) is formed in the sealing rings (231), high-pressure helium is injected into the inner side of the hollow cavity (234), and the two groups of sealing lips (23) are respectively used for oil leakage prevention and dust prevention.
2. The dual main lip assembly type oil seal according to claim 1, wherein: two groups of high-strength carbon steel arc blocks (21) are symmetrically arranged.
3. The dual main lip combined oil seal according to claim 2, wherein: the outer side surface matrix of the high-strength carbon steel arc block (21) is provided with a plurality of groups of protruding columns (211), the outer side surface of the high-strength carbon steel arc block (21) is provided with threaded holes (212), and the outer surface of the high-strength carbon steel arc block (21) is also subjected to rough treatment.
4. A dual main lip combined oil seal according to claim 3, wherein: the rubber rings (22) are uniformly poured on the outer surfaces of the two groups of high-strength carbon steel arc blocks (21), and the two groups of high-strength carbon steel arc blocks (21) are completely wrapped.
5. The dual main lip assembly type oil seal according to claim 4, wherein: through holes A (221) are formed in two sides of the rubber ring (22), and the through holes A (221) are communicated with the threaded holes (212).
6. The dual main lip assembly type oil seal according to claim 1, wherein: in the same sealing lip (23), three groups of sealing rings (231) are arranged, two groups of connecting rings (232) are arranged, and the connecting rings (232) of the two groups are respectively arranged between the sealing rings (231) of the three groups.
7. The dual main lip assembly type oil seal according to claim 6, wherein: the surface of the group of connecting rings (232) is provided with a through hole B (233), and the through hole B (233) is communicated with the through hole A (221) and the threaded hole (212).
8. The dual main lip assembly type oil seal according to claim 7, wherein: the auxiliary mounting piece (24) comprises a connecting rod (241) arranged on one side of the high-strength carbon steel arc block (21), a connecting thread (242) is formed on one end surface of the connecting rod (241), a connecting ring (243) is fixedly connected to the other end of the connecting rod (241), and the connecting thread (242) penetrates through a through hole B (233) and a through hole A (221) on the outer side of the sealing lip (23) and is in threaded connection with the threaded hole (212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321978810.5U CN220204665U (en) | 2023-07-26 | 2023-07-26 | Double main lip combined oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321978810.5U CN220204665U (en) | 2023-07-26 | 2023-07-26 | Double main lip combined oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220204665U true CN220204665U (en) | 2023-12-19 |
Family
ID=89151055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321978810.5U Active CN220204665U (en) | 2023-07-26 | 2023-07-26 | Double main lip combined oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220204665U (en) |
-
2023
- 2023-07-26 CN CN202321978810.5U patent/CN220204665U/en active Active
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| GR01 | Patent grant |