CN211550532U - Oil-gas seal structure - Google Patents
Oil-gas seal structure Download PDFInfo
- Publication number
- CN211550532U CN211550532U CN201922453069.0U CN201922453069U CN211550532U CN 211550532 U CN211550532 U CN 211550532U CN 201922453069 U CN201922453069 U CN 201922453069U CN 211550532 U CN211550532 U CN 211550532U
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- oil
- fixing frame
- gas seal
- seal
- spring
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Abstract
The utility model provides an oil-gas seal structure, namely a novel oil-gas seal structure of a central gas charging and discharging oil seal, which solves the problem of abrasion between a shaft and the oil seal; the oil-gas seal structure comprises a fixed frame, a rubber seal ring and a spring; the fixing frame is of an annular structure with a C-shaped section, and the rubber sealing ring is an annular rubber ring with a framework inside; the spring is of an annular structure; the spring is positioned in the annular groove on the right side of the rubber sealing ring; because the oil-gas seal is internally matched and rotated, the shaft and the fixing frame are relatively fixed, and the rubber sealing ring and the fixing frame rotate relatively, the rotation of the relative shaft part of the hub is converted into the rotation mode inside the oil seal, so that the friction between the shaft and the oil-gas seal is avoided. Through the rotation inside the oil-gas seal, the oil seal lip is prevented from receiving the impact of air pressure, and the damage of the oil-gas seal is avoided.
Description
Technical Field
The utility model belongs to the technical field of the vehicle, a central authorities fill gassing oil blanket is related to.
Background
With the requirements of automobile technical development and special working conditions in China, the requirements for parts and functions thereof are gradually increased, and the design is an oil-gas seal specially designed for a drive axle wheel-side system with central inflation and deflation.
Disadvantages of the background Art
The traditional central air inflation and deflation structure is an oil-air seal, which is mainly the same as the traditional oil seal structure, the inner ring is assembled on a shaft, and the outer ring is arranged on the inner side of a wheel hub. When the wheel hub rotates, the oil-gas seal rotates along with the wheel hub, and the inner ring of the oil-gas seal rotates relative to the shaft. Thus, the matching part of the shaft and the oil-gas seal is abraded after long-time friction, oil and gas at the wheel edge are mixed, and the central inflation and deflation function is lost;
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of abrasion of the oil-gas seal between the shaft and the rotating component through an oil-gas seal structure, namely a novel oil-gas seal structure of a central gas charging and discharging oil seal.
The technical scheme of the utility model is that: an oil-gas seal structure comprises a fixed frame, a rubber seal ring and a spring; the fixing frame is of an annular structure with a C-shaped section, and the rubber sealing ring is an annular rubber ring with a framework inside; the spring is of an annular structure; the spring is positioned in the annular groove on the right side of the rubber sealing ring; the left side of the rubber sealing ring is embedded into the C-shaped fixing frame; the inner ring of the fixing frame is fixed with a shaft at the center of the fixing frame, and the outer side of the rubber sealing ring is fixed with an external rotating part; the inner diameter of the spring is larger than the inner diameter of the fixing frame and smaller than the outer diameter of the fixing frame; and the inner diameter of the spring is smaller than the minimum diameter of the annular groove of the rubber sealing ring.
Further, the inner ring of the fixing frame is fixed with a steel sleeve on the outer side of the steering knuckle matched with the oil-gas seal, and the outer side of the rubber sealing ring is fixed with the hub.
Furthermore, the annular structure of the fixing frame is sleeved on a steel sleeve outside the steering knuckle, and the acting force of a spring acts towards the axis direction of the steering knuckle; the rubber sealing ring clamps the inner ring of the fixing frame.
Furthermore, a steel sleeve on the outer side of the steering knuckle and the fixing frame are relatively fixed, and the diameters of the rubber sealing ring and the fixing frame relatively rotate.
The technical effects of the utility model are that:
through the rotation inside the oil-gas seal, the oil seal lip is prevented from being impacted by air pressure, and the damage of the oil-gas seal is avoided;
drawings
FIG. 1 is a schematic structural diagram of a wheel hub reduction system;
FIG. 2 is a schematic view of the whole oil-gas seal structure of the present invention;
FIG. 3 is a schematic view of a symmetrical half structure of the oil-gas seal structure of the present invention;
1. wheel reduction system 2.O type circle 3. oil gas seals 4. transmission shaft 5.ABS sensor
6. Air release joint 7, knuckle 8, oil seal 9, brake disc 10, air pipe joint (connected with tyre air tap)
11. Hub 12 plug
Detailed Description
The utility model discloses a novel oil gas seal has solved the wearing and tearing problem of the oil blanket between axle and the rotary part, specifically is used for the wearing and tearing problem of the oil gas seal of installation between outside festival (the cylinder liner in the outside) and wheel hub.
The utility model relates to a novel oil-gas seal structure, which comprises a fixed frame 21, a rubber seal ring 22 and a spring 23;
the fixing frame is of an annular structure with a C-shaped section, and the rubber sealing ring is an annular rubber ring with a framework inside; the spring is of an annular structure; the spring is positioned in the annular groove on the right side of the rubber sealing ring; the left side of the rubber sealing ring is embedded into the C-shaped fixing frame;
the inner ring of the fixing frame is fixed with a shaft at the center of the fixing frame (a steel sleeve outside a steering knuckle matched with an oil-gas seal), and the outer side of the rubber sealing ring is fixed with an external rotating part (such as a hub);
the annular structure of the fixing frame is sleeved on a steel sleeve outside the steering knuckle, the spring is an annular spring which is larger than the inner diameter of the fixing frame and smaller than the outer diameter of the fixing frame, the inner diameter of the spring is smaller than the minimum diameter of the annular groove of the rubber sealing ring, and the acting force of the spring acts towards the axis direction of the steering knuckle. Namely, the rubber sealing ring is clamped on the inner ring of the fixing frame.
Because the oil-gas seal is internally matched and rotated, the shaft and the fixing frame are relatively fixed, and the rubber sealing ring and the fixing frame rotate relatively, the rotation of the relative shaft part of the hub is converted into the rotation mode inside the oil seal, so that the friction between the shaft and the oil-gas seal is avoided.
Through the rotation inside the oil-gas seal, the oil seal lip is prevented from receiving the impact of air pressure, and the damage of the oil-gas seal is avoided.
Claims (4)
1. An oil-gas seal structure is characterized by comprising a fixing frame, a rubber seal ring and a spring;
the fixing frame is of an annular structure with a C-shaped section, and the rubber sealing ring is an annular rubber ring with a framework inside; the spring is of an annular structure; the spring is positioned in the annular groove on the right side of the rubber sealing ring; the left side of the rubber sealing ring is embedded into the C-shaped fixing frame; the inner ring of the fixing frame is fixed with a shaft at the center of the fixing frame, and the outer side of the rubber sealing ring is fixed with an external rotating part;
the inner diameter of the spring is larger than the inner diameter of the fixing frame and smaller than the outer diameter of the fixing frame;
and the inner diameter of the spring is smaller than the minimum diameter of the annular groove of the rubber sealing ring.
2. The oil-gas seal structure according to claim 1, wherein the inner ring of the fixing frame is fixed with a steel sleeve outside the knuckle fitted with the oil-gas seal, and the outside of the rubber seal ring is fixed with the hub.
3. The oil-gas seal structure according to claim 1, wherein the annular structure of the fixing frame is sleeved on a steel sleeve outside the steering knuckle, and the acting force of the spring acts towards the axial center direction of the steering knuckle; the rubber sealing ring clamps the inner ring of the fixing frame.
4. The oil-gas seal structure according to claim 1, wherein the steel sleeve outside the knuckle and the fixing frame are relatively fixed, and the rubber seal ring and the fixing frame rotate relatively in diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453069.0U CN211550532U (en) | 2019-12-31 | 2019-12-31 | Oil-gas seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922453069.0U CN211550532U (en) | 2019-12-31 | 2019-12-31 | Oil-gas seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211550532U true CN211550532U (en) | 2020-09-22 |
Family
ID=72512003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922453069.0U Active CN211550532U (en) | 2019-12-31 | 2019-12-31 | Oil-gas seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211550532U (en) |
-
2019
- 2019-12-31 CN CN201922453069.0U patent/CN211550532U/en active Active
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