CN110925315A - Truck hub sealing ring - Google Patents
Truck hub sealing ring Download PDFInfo
- Publication number
- CN110925315A CN110925315A CN201911410105.3A CN201911410105A CN110925315A CN 110925315 A CN110925315 A CN 110925315A CN 201911410105 A CN201911410105 A CN 201911410105A CN 110925315 A CN110925315 A CN 110925315A
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- CN
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- Prior art keywords
- lip
- seal
- sealing
- truck
- rubber
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 112
- 239000004519 grease Substances 0.000 claims abstract description 14
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 11
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 11
- 238000005253 cladding Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000004576 sand Substances 0.000 abstract description 6
- 230000001050 lubricating effect Effects 0.000 abstract description 5
- 239000004575 stone Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000004073 vulcanization Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000004381 surface treatment Methods 0.000 description 3
- 238000009837 dry grinding Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7803—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings
- F16C33/7806—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members suited for particular types of rolling bearings for spherical roller bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/782—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region
- F16C33/7823—Details of the sealing or parts thereof, e.g. geometry, material of the sealing region of sealing lips
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3232—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip having two or more lips
Abstract
The invention discloses a truck hub sealing ring which comprises a shaft sleeve, an internal oil seal and an external oil seal, wherein the first sealing lip, the second sealing lip and the third sealing lip are arranged, so that a truck bearing can be effectively sealed, external dust, muddy water, sand, stone and the like are prevented from entering the sealing ring and the truck bearing, and the first framework, the second framework and the third framework are arranged, so that the sealing ring is not easy to deform, the truck hub sealing ring can be better suitable for a working environment with large bearing capacity of the truck hub, external foreign matters are effectively prevented from entering the truck bearing, lubricating grease in the truck bearing is prevented from leaking, and the service life of the truck bearing is prolonged.
Description
Technical Field
The invention relates to the technical field of sealing rings, in particular to a truck hub sealing ring.
Background
The truck hub bearing has the advantages that due to the fact that the working environment is poor, dust, muddy water, sand, stones and the like on a road are prone to entering the interior of the truck hub bearing, grease is prone to fail prematurely, the service life of the bearing is greatly shortened, the load capacity of a common truck is large, the truck hub bearing is enabled to bear large load, a sealing ring is prone to deforming, and accordingly sealing failure is prone to occurring, and therefore effective sealing of the truck hub bearing is particularly important. However, most of the existing sealing rings only have one sealing lip, so that the sealing performance is poor, external dust, muddy water, sand, stone and the like enter the sealing rings and the bearings, the bearings are damaged, and the working efficiency is seriously affected.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the truck hub sealing ring provided by the invention is suitable for severe work of the truck hub bearing, is not easy to deform, can effectively prevent external dust, muddy water, sand and stone and the like from entering the truck bearing, and prolongs the service life of the truck bearing.
According to the embodiment of the invention, the wheel hub sealing ring of the truck comprises: the shaft sleeve comprises a first framework and a first rubber sealing body, the first rubber sealing body is coated at the bottom of the first framework, the first framework is provided with a plurality of bending parts, and the shaft sleeve is used for connecting a truck axle; the inner oil seal is connected with the outer side of the shaft sleeve and comprises a second framework, a first sealing lip and a second sealing lip, one end of the first sealing lip is connected with one end of the second sealing lip, an annular rubber wrapping head is arranged at the joint of the first sealing lip and the second sealing lip, one end of the second framework is arranged in the annular rubber wrapping head, the lips of the first sealing lip and the second sealing lip are both abutted against the first framework, an installation groove is formed in the lip of the first sealing lip, and a pre-tightening spring is arranged in the installation groove; the external oil seal, the external oil seal with the outside of inside oil seal is connected, the external oil seal includes third skeleton, second rubber seal and third seal lip, the cladding of second rubber seal is in the top of third skeleton, the lip back of the body cladding of third seal lip is in the one end of third skeleton, the lip of third seal lip supports the top first skeleton is kept away from one side of second seal lip, the third seal lip with the junction of first skeleton is provided with the PTFE rubber layer.
The truck hub sealing ring provided by the embodiment of the invention at least has the following beneficial effects: the utility model provides a truck hub sealing washer, be provided with first seal lip, second seal lip and third seal lip, can effectively seal the truck bearing, prevent outside dust, muddy water, entering sealing washer and truck bearing such as gravel and sand, and be provided with first skeleton, second skeleton and third skeleton, make the sealing washer be difficult to warp, the operating environment that the truck hub bearing capacity is big that is applicable to that can be better, effectively prevent that outside foreign matter from getting into the truck bearing, prevent simultaneously that lubricating grease in the truck bearing from spilling, the life of truck bearing is improved.
According to some embodiments of the invention, the first rubber sealing body is coated on the bottom of the first framework by adopting a half-coated structure.
According to some embodiments of the invention, the lip of the second seal lip is provided with a flange facing the external oil seal.
According to some embodiments of the invention, the top of the second rubber sealing body is provided with a corrugated structure.
According to some embodiments of the invention, the second rubber sealing body is provided with a first chamfer.
According to some embodiments of the present invention, a first sealed space is formed between the second seal lip, the first skeleton, the third seal lip, the third skeleton, the second rubber sealing body and the second skeleton, and the first sealed space is filled with grease.
According to some embodiments of the invention, a closed second space is formed between the first seal lip, the second seal lip and the first skeleton, and the second space is filled with grease.
According to some embodiments of the invention, the first sealing lip is provided with a second chamfer.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural view of a truck hub seal ring according to an embodiment of the present invention;
fig. 2 is an assembly view of a truck hub seal ring according to an embodiment of the present invention.
Reference numerals:
the first frame 110, the first rubber sealing body 120, the second frame 210, the first sealing lip 220, the second chamfer 221, the second sealing lip 230, the annular rubber ferrule 240, the mounting groove 250, the pre-tightening spring 260, the third frame 310, the second rubber sealing body 320, the corrugated structure 321, the first chamfer 322, the third sealing lip 330, the PTFE rubber layer 340, the first space 400, the second space 500, the bent portion 600, the truck axle 700, the truck bearing 800, and the mounting hole 900.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "thickness," "upper," "lower," "horizontal," "top," "bottom," "inner," "outer," "radial," "axial," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting. Furthermore, features defined as "first," "second," and "third" may explicitly or implicitly include one or more of the features.
In the description of the present invention, it should be understood that unless otherwise specifically limited, the terms "disposed," "mounted," "connected," and the like are to be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the invention by combining the detailed contents of the technical solutions.
A karter hub seal ring according to an embodiment of the invention is described below with reference to fig. 1 and 2.
The truck hub sealing ring provided by the embodiment of the invention comprises a shaft sleeve, an inner oil seal and an outer oil seal.
Referring to fig. 1 and 2, the shaft sleeve includes a first frame 110 and a first rubber sealing body 120, the first rubber sealing body 120 is wrapped at the bottom of the first frame 110, the first frame 110 is provided with a plurality of bending portions 600, and the shaft sleeve is used for connecting a truck axle 700. It should be understood that the bottom as referred to herein refers to the lower portion of the orientation of the figure. The shaft sleeve is connected with the truck axle 700 through the first rubber sealing body 120, so that effective sealing of the truck bearing 800 is guaranteed, and meanwhile, the deformation resistance of the truck hub sealing ring provided by the embodiment of the invention is improved due to the arrangement of the first framework 110.
It should be noted that the first frame 110 is manufactured by a punch forming process, and the surface of the first frame 110 is treated, so that the first rubber sealing body 120 can be reliably bonded and coated on the first frame 110, and the first frame 110 participates in the molding hot vulcanization forming process of the first rubber sealing body 120, so as to ensure that the first frame 110 and the first rubber sealing body 120 are not separated in actual use, and the working surface of the first rubber sealing body 120 is subjected to machining after vulcanization forming, so as to improve the surface smoothness. The surface treatment is a process method for artificially forming a surface layer with mechanical, physical and chemical properties different from those of a substrate on the surface of the substrate material. The purpose of the surface treatment is to meet the requirements of corrosion resistance, wear resistance, decoration or other special functions of the product.
The inside oil blanket is connected with the outside of axle sleeve, inside oil blanket includes second skeleton 210, first seal lip 220 and second seal lip 230, the one end of first seal lip 220 and the one end of second seal lip 230 are connected, the junction of first seal lip 220 and second seal lip 230 is provided with annular rubber baotou 240, the one end setting of second skeleton 210 is in annular rubber baotou 240, the lip of first seal lip 220 and second seal lip 230 all supports and pushes against first skeleton 110, the lip of first seal lip 220 is provided with mounting groove 250, be provided with pretension spring 260 in the mounting groove 250. It should be understood that the outside as referred to herein refers to the side of the sleeve away from the center of the circle. Specifically, the pre-tightening spring 260 provides a holding force for the first sealing lip 220, the first sealing lip 220 is always in close contact with the truck axle 700 under the action of the pre-tightening spring 260, external dust and muddy water are prevented from entering the truck bearing 800, lubricating grease in the truck bearing 800 is effectively prevented from leaking and/or deteriorating, and the service life of the truck bearing 800 is effectively prolonged.
It should be noted that the second frame 210 is manufactured by a press forming process, and the surface of the second frame 210 is processed, so that the second frame 210 can be reliably bonded to the annular rubber ferrule 240, and the second frame 210 participates in the molding hot vulcanization forming process of the first sealing lip 220 and the second sealing lip 230, so as to ensure that the first frame 110 and the annular rubber ferrule 240 do not separate in actual use, and the second frame 210 further improves the deformation resistance of the truck hub sealing ring according to the embodiment of the present invention.
The outside oil blanket is connected with the outside of inside oil blanket, and outside oil blanket includes third skeleton 310, second rubber seal body 320 and third seal lip 330, and the cladding of second rubber seal body 320 is at the top of third skeleton 310, and the cladding of the lip back of the body of third seal lip 330 is in the one end of third skeleton 310, and the lip mouth of third seal lip 330 supports one side that keeps away from second seal lip 230 against first skeleton 110, and the junction of third seal lip 330 and first skeleton 110 is provided with PTFE rubber layer 340. It should be understood that the outer side as used herein refers to the side of the internal oil seal away from the center of the bushing, and the top refers to the upper portion of the orientation of the attached drawings. Specifically, the lip of the third sealing lip 330 is in interference connection with the first framework 110, the PTFE rubber layer 340 is arranged at the connection part of the third sealing lip 330 and the first framework 110, PTFE is also called polytetrafluoroethylene, and the material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, is almost insoluble in all solvents, and meanwhile, the polytetrafluoroethylene has the characteristic of high temperature resistance and is extremely low in friction coefficient, so that even if the lip of the third sealing lip 330 is in interference connection with the first framework 110, the third sealing lip 330 is not easily damaged rapidly due to long-term friction.
It should be noted that the PTFE rubber layer 340 is pre-pressed into a sheet, and the outer surface thereof is subjected to surface treatment, so that the PTFE rubber layer 340 and the second rubber sealing body 320 can be reliably bonded to ensure that the two do not separate during use, the third frame 310 participates in the mold pressing and hot vulcanization molding process of the second rubber sealing body 320 and the third sealing lip 330, so as to ensure that the second rubber sealing body 320 can reliably bond and cover the third frame 310, and the third frame 310 further improves the deformation resistance of the truck hub sealing ring according to the embodiment of the present invention.
In some embodiments of the present invention, the first rubber sealing body 120 is coated on the bottom of the first framework 110 by using a half-coating structure, and compared with a full-coating structure, the half-coating structure has good coaxiality during assembly, which saves rubber material and improves the heat dissipation effect of the truck hub sealing ring of the embodiments of the present invention.
In some embodiments of the present invention, the lip of the second seal lip 230 is provided with a flange facing the external oil seal, such a structure enables the lip of the second seal lip 230 to have good elasticity, the contact pressure between the lip of the second seal lip 230 and the first framework 110 is small, frictional heating is reduced, and a stable interference fit amount is ensured.
In some embodiments of the present invention, the corrugated structure 321 is disposed at the top of the second rubber sealing body 320, in some application scenarios, the truck hub sealing ring in the embodiment of the present invention is installed in the mounting seat hole 900, the truck hub sealing ring in the embodiment of the present invention is in interference connection with the mounting seat hole 900, and the corrugated structure 321 is disposed at the top of the second rubber sealing body 320, that is, the corrugated structure 321 is disposed between the second rubber sealing body 320 and the mounting seat hole 900, such a structure makes the truck hub sealing ring in the embodiment of the present invention more convenient to install, and it is not difficult to install due to excessive adhesion between the second rubber sealing body 320 and the mounting seat hole 900 and large friction force.
In some embodiments of the present invention, the second rubber sealing body 320 is provided with a first chamfer 322, which configuration facilitates installation of the truck hub seal of embodiments of the present invention.
In some embodiments of the present invention, a first sealed space 400 is formed between the second seal lip 230, the first frame 110, the third seal lip 330, the third frame 310, the second rubber sealing body 320 and the second frame 210, and the first sealed space 400 is filled with grease. Specifically, because the second seal lip 230 and the first frame 110 and the third seal lip 330 and the first frame 110 are in interference connection, when the truck hub works, friction exists between the second seal lip 230 and the first frame 110 and between the third seal lip 330 and the first frame 110, and the lubricating grease enables the lip mouths of the second seal lip 230 and the third seal lip 330 to keep lubrication, thereby preventing the lip mouths from being damaged quickly due to dry grinding, and prolonging the service life.
In some embodiments of the present invention, a closed second space 500 is formed between the first seal lip 220, the second seal lip 230 and the first frame 110, and the second space 500 is filled with grease, which enables the lip openings of the first seal lip 220 and the second seal lip 230 to be kept lubricated and prevents the lip openings from being damaged quickly due to dry grinding.
In some embodiments of the present invention, the first sealing lip 220 is provided with the second chamfer 221, such a structure enables the first sealing lip 220 to save materials, reduce production cost, and improve market competitiveness of the product on the premise of ensuring the sealing effect.
A karman hub seal according to an embodiment of the present invention will be described in detail in a specific embodiment with reference to fig. 1 and 2. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.
As shown in fig. 1 and 2, the truck hub seal includes a sleeve, an inner oil seal, and an outer oil seal.
The axle sleeve includes first skeleton 110 and first rubber seal 120, and first rubber seal 120 adopts half rubber-coated structure, and the cladding is in the bottom of first skeleton 110, and first skeleton 110 is provided with a plurality of kink 600, and the axle sleeve is used for connecting truck axle 700.
The inside oil blanket is connected with the outside of axle sleeve, inside oil blanket includes second skeleton 210, first seal lip 220 and second seal lip 230, the one end of first seal lip 220 and the one end of second seal lip 230 are connected, the junction of first seal lip 220 and second seal lip 230 is provided with annular rubber baotou 240, the one end setting of second skeleton 210 is in annular rubber baotou 240, the lip of first seal lip 220 and second seal lip 230 all supports and pushes against first skeleton 110, first seal lip 220 is provided with second chamfer 221, the lip of second seal lip 230 is provided with the turn-ups towards outside oil blanket, the lip of first seal lip 220 is provided with mounting groove 250, be provided with pretension spring 260 in the mounting groove 250. Specifically, a closed second space 500 is formed between the first seal lip 220, the second seal lip 230 and the first frame 110, and the second space 500 is filled with grease.
Outside oil blanket is connected with the outside of inside oil blanket, outside oil blanket includes third skeleton 310, second rubber seal body 320 and third seal lip 330, the cladding of second rubber seal body 320 is at the top of third skeleton 310, the top of second rubber seal body 320 is provided with corrugated structure 321, second rubber seal body 320 is provided with first chamfer 322, the lip back of the body cladding of third seal lip 330 is in the one end of third skeleton 310, the lip mouth of third seal lip 330 supports one side that keeps away from second seal lip 230 to first skeleton 110, third seal lip 330 is provided with PTFE rubber layer 340 with the junction of first skeleton 110. Specifically, a sealed first space 400 is formed between the second seal lip 230, the first frame 110, the third seal lip 330, the third frame 310, the second rubber sealing body 320, and the second frame 210, and the first space 400 is filled with grease.
According to the truck hub sealing ring provided by the embodiment of the invention, at least the following effects can be achieved, and the truck hub sealing ring is provided with the first sealing lip 220, the second sealing lip 230 and the third sealing lip 330, so that the truck hub sealing ring can effectively seal the truck bearing 800, prevent external dust, muddy water, sand and stone and the like from entering the sealing ring and the truck bearing 800, and is further provided with the first framework 110, the second framework 210 and the third framework 310, so that the sealing ring is not easy to deform, the truck hub sealing ring can be better suitable for a working environment with large truck hub bearing capacity, external foreign matters can be effectively prevented from entering the truck bearing 800, meanwhile, lubricating grease in the truck bearing 800 is prevented from leaking, and the service life of the truck bearing 800 is prolonged.
In the description herein, references to the description of "one embodiment," "some embodiments," or "specific" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (8)
1. A truck hub seal ring, comprising:
the axle sleeve comprises a first framework (110) and a first rubber sealing body (120), wherein the first rubber sealing body (120) covers the bottom of the first framework (110), the first framework (110) is provided with a plurality of bending parts (600), and the axle sleeve is used for connecting a truck axle (700);
the inner oil seal is connected with the outer side of the shaft sleeve and comprises a second framework (210), a first sealing lip (220) and a second sealing lip (230), one end of the first sealing lip (220) is connected with one end of the second sealing lip (230), an annular rubber ferrule (240) is arranged at the joint of the first sealing lip (220) and the second sealing lip (230), one end of the second framework (210) is arranged in the annular rubber ferrule (240), the lip mouths of the first sealing lip (220) and the second sealing lip (230) are both abutted against the first framework (110), an installation groove (250) is arranged on the lip mouth of the first sealing lip (220), and a pre-tightening spring (260) is arranged in the installation groove (250);
the outside oil blanket, outside oil blanket with the outside of inside oil blanket is connected, outside oil blanket includes third skeleton (310), second rubber seal body (320) and third seal lip (330), the cladding of second rubber seal body (320) is in the top of third skeleton (310), the lip back cladding of third seal lip (330) is in the one end of third skeleton (310), the lip mouth of third seal lip (330) supports the top first skeleton (110) is kept away from one side of second seal lip (230), third seal lip (330) with the junction of first skeleton (110) is provided with PTFE rubber layer (340).
2. The truck hub seal according to claim 1, wherein the first rubber sealing body (120) is coated on the bottom of the first frame (110) by a half-coated structure.
3. A kart hub seal according to claim 1, characterized in that the lip of the second sealing lip (230) is provided with a flange towards the outer oil seal.
4. A kart hub seal according to claim 1, characterized in that the second rubber sealing body (320) is provided with a corrugation (321) on top.
5. A kart hub seal according to claim 1 or 4, characterized in that the second rubber sealing body (320) is provided with a first chamfer (322).
6. The truck hub seal according to claim 1, characterized in that a first closed space (400) is formed between the second seal lip (230), the first frame (110), the third seal lip (330), the third frame (310), the second rubber sealing body (320) and the second frame (210), and the first space (400) is filled with grease.
7. A kart hub seal according to claim 1, characterized in that a closed second space (500) is formed between the first sealing lip (220), the second sealing lip (230) and the first frame (110), the second space (500) being filled with grease.
8. A kart hub seal according to claim 1 or 7, characterized in that the first sealing lip (220) is provided with a second chamfer (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911410105.3A CN110925315A (en) | 2019-12-31 | 2019-12-31 | Truck hub sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911410105.3A CN110925315A (en) | 2019-12-31 | 2019-12-31 | Truck hub sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110925315A true CN110925315A (en) | 2020-03-27 |
Family
ID=69854504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911410105.3A Pending CN110925315A (en) | 2019-12-31 | 2019-12-31 | Truck hub sealing ring |
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| CN (1) | CN110925315A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855903A (en) * | 2022-04-29 | 2022-08-05 | 三一重机有限公司 | Connection structure of accessory and operation arm and operation machine |
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| CN211449409U (en) * | 2019-12-31 | 2020-09-08 | 江门市鑫辉密封科技有限公司 | Truck hub sealing ring |
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2019
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|---|---|---|---|---|
| CN201568577U (en) * | 2009-11-11 | 2010-09-01 | 青岛开世密封工业有限公司 | Combined-type hub seal ring for trailer axle |
| CN201627926U (en) * | 2010-02-04 | 2010-11-10 | 青岛开世密封工业有限公司 | Heavy truck bridge hub oil seal |
| KR20130104668A (en) * | 2012-03-15 | 2013-09-25 | 주식회사 일진글로벌 | Sealing cap and wheel bearing assembly thereof |
| CN204755608U (en) * | 2015-06-15 | 2015-11-11 | 洛阳轴研科技股份有限公司 | Seal structure of truck hub bearing |
| CN208587495U (en) * | 2018-08-21 | 2019-03-08 | 合肥集源穗意液压技术股份有限公司 | A kind of bicyclic oil-sealing arrangement |
| CN211449409U (en) * | 2019-12-31 | 2020-09-08 | 江门市鑫辉密封科技有限公司 | Truck hub sealing ring |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855903A (en) * | 2022-04-29 | 2022-08-05 | 三一重机有限公司 | Connection structure of accessory and operation arm and operation machine |
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