CN220910412U - Half-shaft oil seal structure - Google Patents
Half-shaft oil seal structure Download PDFInfo
- Publication number
- CN220910412U CN220910412U CN202322450725.8U CN202322450725U CN220910412U CN 220910412 U CN220910412 U CN 220910412U CN 202322450725 U CN202322450725 U CN 202322450725U CN 220910412 U CN220910412 U CN 220910412U
- Authority
- CN
- China
- Prior art keywords
- wall
- connecting seat
- oil blanket
- protection casing
- semi
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- 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.)
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 33
- 229920001971 elastomer Polymers 0.000 claims abstract description 30
- 230000008878 coupling Effects 0.000 claims abstract description 14
- 238000010168 coupling process Methods 0.000 claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 claims abstract description 14
- 238000010030 laminating Methods 0.000 claims abstract description 6
- 239000000428 dust Substances 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004073 vulcanization Methods 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000001629 suppression Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 69
- 230000001681 protective effect Effects 0.000 description 11
- 239000013049 sediment Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model provides a semi-axis oil blanket structure, includes protection casing and connecting seat, the top rigid coupling of protection casing has the connecting seat, the top cap is installed to the top of connecting seat, and the top cap links to each other with the connecting seat screw thread through a plurality of bolts, the internally mounted of protection casing has oil blanket device, the internally mounted of connecting seat has connecting device. Can set up dust seal and rubber oil blanket in the inside of protection casing, set up oil blanket lip and waterproof lip in the inside of rubber oil blanket, later penetrate the semi-axis from the below of protection casing, make the semi-axis pass rubber oil blanket and connecting seat in proper order, and make the outer wall and the waterproof lip laminating of semi-axis, install sealing washer and top cap on the semi-axis in proper order again, this oil blanket structure has increased protection casing and dust seal, and protection casing and dust seal, rubber oil blanket adopt the vulcanization back suppression to form, also reduced production and use cost when solving silt prevention problem, and then just effectually reduced the vehicle trouble.
Description
Technical Field
The utility model relates to the technical field of half-shaft oil seal structures, in particular to a half-shaft oil seal structure.
Background
The axle shaft oil seal is positioned at the lower part of the chassis, the axle shaft oil seal is used for sealing and dividing two parts of the driving axle and the wheel edge speed reducer, the axle shaft is used for transmitting the output torque of the axle shaft gear of the differential mechanism to the driving wheel or the wheel edge speed reducer, if the axle shaft oil seal leaks oil, the quantity of lubricating oil in the driving axle is reduced, the normal lubrication is influenced, and the early damage is caused by the abrasion of a part.
One type of axle oil seal mating axle structure, such as that of the grant publication CN214367629U, includes an axle gear and an axle oil seal mounted on the axle gear. The utility model solves the problem of flanging of the sealing lip in the press mounting process of the half-shaft oil seal, does not need to use auxiliary tools for assembly in the press mounting process, avoids the problems of oil seal trimming and deformation caused by improper tools, reduces the labor intensity of workers and improves the assembly efficiency of a transmission assembly, but the half-shaft oil seal is matched with a shaft structure, adopts a single oil seal structure to seal the leakage of lubricating oil, and has a severe sealing working condition of the oil seal due to the axial movement distance of a driving half shaft in steering, thus the sealing structure cannot effectively play a role in preventing sediment, and once sediment enters, the half shaft is seriously rusted, the oil seal is worn early, the oil seal leaks oil, and unexpected harm is caused to vehicles.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a half-shaft oil seal structure which achieves the effects of preventing sediment from entering an inner lip of an oil seal, protecting a transmission shaft and the oil seal fully, prolonging the service life of the oil seal and reducing the after-sale use and maintenance cost.
The utility model solves the technical problems by adopting the technical scheme that: this kind of semi-axis oil blanket structure, including protection casing and connecting seat, the top rigid coupling of protection casing has the connecting seat, the top cap is installed to the top of connecting seat, and the top cap links to each other with the connecting seat screw thread through a plurality of bolts, the internally mounted of protection casing has the oil blanket device, the internally mounted of connecting seat has connecting device.
For further perfection, the oil seal device includes the dust seal, the outer wall of dust seal and the inner wall looks rigid coupling of protection casing, the below of dust seal is connected with the rubber oil blanket, and the outer wall of rubber oil blanket is connected with the inner wall of protection casing, the inner wall rigid coupling of rubber oil blanket has the oil blanket lip, and the inner wall rigid coupling of oil blanket lip has waterproof lip.
Further perfects, the inner wall laminating of oil blanket lip has the semi-axis, and the top outer wall of semi-axis and the opening part inner wall clearance fit of connecting seat.
Further perfect, connecting device includes the sealing washer, inner wall and outer wall of sealing washer laminate mutually with the circular slot department inner wall of the outer wall of semi-axis and connecting seat respectively, the upper surface laminating of sealing washer has the ring, and the inner wall of ring and the outer wall clearance fit of semi-axis, the upper surface rigid coupling of ring has a plurality of montants, the barrel is installed to the last Fang Waibi of montant, and the opening part inner wall and the outer wall clearance fit of montant of barrel, the outer wall of barrel and the inside looks rigid coupling of top cap.
Further perfecting, the upper surface rigid coupling of montant has the dog, and the outer wall of dog and the inside inner wall clearance fit of barrel.
Further perfecting, the spring is arranged in the cylinder, and two ends of the spring are fixedly connected with the stop block and the cylinder respectively.
The beneficial effects of the utility model are as follows: according to the utility model, the dustproof seal and the rubber oil seal can be arranged in the protective cover, the oil seal lip and the waterproof lip are arranged in the rubber oil seal, then the half shaft penetrates from the lower part of the protective cover, the half shaft sequentially penetrates through the rubber oil seal and the connecting seat, the outer wall of the half shaft is attached to the waterproof lip, the sealing ring and the top cover are sequentially installed on the half shaft, the sealing ring enters the circular groove of the connecting seat, the top cover is fixed with the connecting seat through the bolts, meanwhile, when the top cover moves downwards, the top cover can drive the circular ring to move through the cylinder body, the vertical rod and the like, the lower part of the circular ring is attached to the sealing ring, the cylinder body is matched with the vertical rod, the stop block and the like to squeeze the spring, so that the circular ring can be abutted against the sealing ring through the elastic property of the spring, the half shaft can be preliminarily sealed through the sealing ring, the oil seal structure increases the protective cover and the dustproof seal, and the dustproof seal are formed by pressing after vulcanization, the production cost and the use cost of the rubber oil seal are reduced, and the vehicle faults are effectively reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the dust seal, rubber oil seal and boot of FIG. 2;
FIG. 4 is a schematic view of the top cover, seal ring and connection seat of FIG. 2;
Fig. 5 is a schematic view of the spring, ring and barrel of fig. 2.
Reference numerals illustrate: in the figure: 1. protective cover, 2, connecting seat, 3, oil seal device, 301, dustproof seal, 302, rubber oil seal, 303, oil seal lip, 304, waterproof lip, 3A1, protective layer, 4, connecting device, 401, sealing ring, 402, ring, 403, montant, 404, barrel, 5, top cap, 6, bolt, 7, semi-axis, 8, dog, 9, spring.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
Example 1:
Referring to fig. 1-5: in this embodiment, a semi-axis oil seal structure, including protection casing 1 and connecting seat 2, the top rigid coupling of protection casing 1 has connecting seat 2, and the internal processing of connecting seat 2 has circular slot and opening, and top cap 5 is installed to the top of connecting seat 2, and the intermediate processing of top cap 5 has the opening, and top cap 5 links to each other with connecting seat 2 screw thread through 4 bolts 6, and the internally mounted of protection casing 1 has oil seal device 3, and the internally mounted of connecting seat 2 has connecting device 4.
Referring to fig. 1-3, the oil sealing device 3 comprises a dust seal 301, a rubber oil seal 302, an oil seal lip 303 and a waterproof lip 304, wherein the outer wall of the dust seal 301 is fixedly connected with the inner wall of the protective cover 1, the dust seal 301 is a polyurethane dust seal, a rubber oil seal 302 is connected below the dust seal 301, the outer wall of the rubber oil seal 302 is connected with the inner wall of the protective cover 1, the oil seal lip 303 is fixedly connected with the inner wall of the rubber oil seal 302, the waterproof lip 304 is fixedly connected with the inner wall of the oil seal lip 303, the inner wall of the oil seal lip 303 is attached with a half shaft 7, the outer wall above the half shaft 7 is in clearance fit with the inner wall of the opening of the connecting seat 2, the dust seal 301 and the rubber oil seal 302 are respectively vulcanized and formed, and the surface of the lip of the rubber oil seal 302 is provided with bidirectional backflow lines, so that dynamic oil return capacity during transmission of the half shaft 7 can be enhanced;
Can set up dust seal 301 and rubber oil blanket 302 in the inside of protection casing 1, set up oil blanket lip 303 and waterproof lip 304 in the inside of rubber oil blanket 302, later penetrate semi-axis 7 from the below of protection casing 1, make the semi-axis pass rubber oil blanket 302 and connecting seat 2 according to 7 times, and make the outer wall and the waterproof lip 304 laminating of semi-axis 7, this oil blanket structure has increased protection casing 1 and dust seal 301, and protection casing 1 and dust seal 301, rubber oil blanket 302 adopt the pressing after the vulcanization to form, also reduced manufacturing and use cost when solving silt prevention problem, and then just effectually reduced the vehicle trouble.
Referring to fig. 1, 2, 4 and 5, the connecting device 4 comprises a sealing ring 401, a circular ring 402, a vertical rod 403 and a cylinder 404, wherein the inner wall and the outer wall of the sealing ring 401 are respectively attached to the outer wall of the half shaft 7 and the inner wall of a circular groove of the connecting seat 2, the circular ring 402 is attached to the upper surface of the sealing ring 401, the sealing ring 401 can be blocked by the circular ring 402, the inner wall of the circular ring 402 is in clearance fit with the outer wall of the half shaft 7, 4 vertical rods 403 are fixedly connected to the upper surface of the circular ring 402, the cylinder 404 is mounted on the upper Fang Waibi of the vertical rod 403, an opening is machined below the cylinder 404, the inner wall of the opening of the cylinder 404 is in clearance fit with the outer wall of the vertical rod 403, the outer wall of the cylinder 404 is fixedly connected with the inner part of the top cover 5, the upper surface of the vertical rod 403 is fixedly connected with a stop 8, the outer wall of the stop 8 is in clearance fit with the inner wall of the cylinder 404, a spring 9 is mounted in the cylinder 404, and two ends of the spring 9 are respectively fixedly connected with the stop 8 and the cylinder 404;
The sealing ring 401 and the top cover 5 can be sequentially installed on the half shaft 7, the sealing ring 401 is led to enter the circular groove of the connecting seat 2, the top cover 5 is fixed with the connecting seat 2 through the bolt 6, meanwhile, when the top cover 5 moves downwards, the top cover 5 can drive the circular ring 402 to move through the cylinder 404, the vertical rod 403 and the like, the lower part of the circular ring 402 is attached to the sealing ring 401, the cylinder 404 is matched with the vertical rod 403, the stop block 8 and the like to squeeze the spring 9, and therefore, the circular ring 402 can tightly prop the sealing ring 401 through the elastic performance of the spring 9, and the half shaft 7 can be preliminarily sealed through the sealing ring 401.
When an operator needs to use a half shaft oil seal structure, a dust seal 301 and a rubber oil seal 302 can be arranged in the protective cover 1, an oil seal lip 303 and a waterproof lip 304 are arranged in the rubber oil seal 302, then the half shaft 7 penetrates through the rubber oil seal 302 and the connecting seat 2 for 7 times, the outer wall of the half shaft 7 is attached to the waterproof lip 304, then the sealing ring 401 and the top cover 5 are sequentially installed on the half shaft 7, the sealing ring 401 is enabled to enter a circular groove of the connecting seat 2, the top cover 5 is enabled to be fixed with the connecting seat 2 through the bolts 6, meanwhile, when the top cover 5 moves downwards, the top cover 5 can drive the circular ring 402 to move, the lower portion of the circular ring 402 is attached to the sealing ring 401, and the cylinder 404 is matched with the vertical rod 403 and the stop block 8 and the like to squeeze the spring 9, so that the circular ring 402 can be abutted against the sealing ring 401 through the elastic performance of the spring 9, the sealing ring 401 can be used for primary sealing of the half shaft 7, the oil seal structure is increased, the protective cover 1 and the dust seal 301 are enabled to enter into a circular groove of the connecting seat 2, meanwhile, the top cover 5 can be pressed by adopting a cylinder 404 and a vertical rod 403, and the dust seal is lowered, and the production cost is lowered, and the vehicle is effectively lowered.
Example 2:
Referring to fig. 1-3: in this embodiment, in the half-shaft oil seal structure, the oil seal device 3 may further include a protection layer 3A1, where an inner wall of the protection layer 3A1 is fixedly connected with an upper outer wall of the protection cover 1, and a material of the protection layer 3A1 is rubber;
The protective layer 3A1 can be arranged on the outer wall of the upper part of the protective cover 1, so that erosion of sediment to the protective cover 1 can be isolated through the protective layer 3A1, and the service life of the protective cover 1 is prolonged.
When operating personnel need use semi-axis oil blanket structure, can set up inoxidizing coating 3A1 at protection casing 1's top outer wall, can isolate the erosion of silt to protection casing 1 through inoxidizing coating 3A1 like this, improve protection casing 1's life.
While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.
Claims (4)
1. The utility model provides a semi-axis oil blanket structure, includes protection casing (1) and connecting seat (2), the top rigid coupling of protection casing (1) has connecting seat (2), characterized by: top cap (5) are installed to the top of connecting seat (2), and top cap (5) link to each other with connecting seat (2) screw thread through a plurality of bolts (6), internally mounted of protection casing (1) has oil blanket device (3), internally mounted of connecting seat (2) has connecting device (4), oil blanket device (3) are including dustproof seal (301), the outer wall of dustproof seal (301) is fixedly connected with the inner wall of protection casing (1), the below of dustproof seal (301) is connected with rubber oil blanket (302), and the outer wall of rubber oil blanket (302) is connected with the inner wall of protection casing (1), the inner wall rigid coupling of rubber oil blanket (302) has oil blanket lip (303), and the inner wall rigid coupling of oil blanket lip (303) has waterproof lip (304), the laminating of the inner wall of oil blanket lip (303) has semi-axis (7), and the top outer wall of semi-axis (7) and the opening part inner wall clearance fit of connecting seat (2).
2. The half-shaft oil seal structure according to claim 1, wherein: connecting device (4) are including sealing washer (401), inner wall and outer wall of sealing washer (401) laminate mutually with the outer wall of semi-axis (7) and the circular slot department inner wall of connecting seat (2) respectively, the upper surface laminating of sealing washer (401) has ring (402), and the inner wall of ring (402) and the outer wall clearance fit of semi-axis (7), the upper surface rigid coupling of ring (402) has a plurality of montants (403), barrel (404) are installed to the top outer wall of montant (403), and the opening part inner wall and the outer wall clearance fit of montant (403) of barrel (404), the outer wall of barrel (404) is the rigid coupling mutually with the inside of top cap (5).
3. The half-shaft oil seal structure according to claim 2, characterized in that: the upper surface of montant (403) fixedly connected with dog (8), and the outer wall of dog (8) and the inside inner wall clearance fit of barrel (404).
4. A half shaft oil seal structure according to claim 3, characterized in that: the spring (9) is arranged in the cylinder (404), and two ends of the spring (9) are fixedly connected with the stop block (8) and the cylinder (404) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322450725.8U CN220910412U (en) | 2023-09-11 | 2023-09-11 | Half-shaft oil seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322450725.8U CN220910412U (en) | 2023-09-11 | 2023-09-11 | Half-shaft oil seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220910412U true CN220910412U (en) | 2024-05-07 |
Family
ID=90903906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322450725.8U Active CN220910412U (en) | 2023-09-11 | 2023-09-11 | Half-shaft oil seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220910412U (en) |
-
2023
- 2023-09-11 CN CN202322450725.8U patent/CN220910412U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |