CN219221244U - Sealing structure of sealing cap, input shaft and sensor cover - Google Patents
Sealing structure of sealing cap, input shaft and sensor cover Download PDFInfo
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- CN219221244U CN219221244U CN202223237662.XU CN202223237662U CN219221244U CN 219221244 U CN219221244 U CN 219221244U CN 202223237662 U CN202223237662 U CN 202223237662U CN 219221244 U CN219221244 U CN 219221244U
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- sealing cap
- input shaft
- sealing
- sensor cover
- cap
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Abstract
The utility model relates to the technical field of steering engines, in particular to a sealing structure of a sealing cap, an input shaft and a sensor cover. Compared with the prior art, the utility model ensures the press-in position of the sealing cap by the interference fit of the sealing cap and the input shaft, and avoids the noise caused by the axial movement of the sealing cap in the working process of the steering gear. And the clamping structure between the sealing cap and the input shaft ensures the sealing effect. The reinforcing ribs between the sealing cap and the sensor cover prevent external solid and liquid from invading from the gap between the sealing cap and the sensor cover, and the sealing effect and the anti-corrosion effect are improved.
Description
Technical Field
The utility model relates to the technical field of steering gears, in particular to a sealing structure of a sealing cap, an input shaft and a sensor cover.
Background
In the field of steering engine design, the seal cap, input shaft and sensor cover constitute a common steering end seal system. The sealing cap is pressed on the input shaft, the sealing structure at the upper end of the sealing cap is in interference fit with the input shaft, the lower end of the sealing cap is in clearance fit with the sensor cover, the sensor cover is wrapped in the sealing structure, the whole input shaft and the sensor cover are axially sealed and are not exposed in the external environment, and therefore good waterproof and anti-corrosion effects are achieved.
As shown in fig. 1, the conventional sealing cap 2 is press-fitted with the input shaft 1 in an interference manner, and is in clearance fit with the sensor cover 4, and the lower end of the sealing cap 2 is covered with an edge to wrap the axial seal 3 of the sensor cover 4 therein, so that proper waterproof and anti-corrosion effects can be realized. However, when the steering gear works in a harsher environment, external solid and liquid are easy to invade from the gap between the sealing cap 2 and the sensor cover 3, so that the internal parts of the steering gear are corroded, and the normal work of the steering gear is affected.
Therefore, it is necessary to design a sealing structure of the sealing cap, the input shaft and the sensor cover to enhance the sealing effect and the corrosion preventing effect.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a sealing structure of a sealing cap, an input shaft and a sensor cover, so as to improve the sealing effect and the corrosion prevention effect.
In order to achieve the above purpose, the utility model provides a sealing structure of a sealing cap, an input shaft and a sensor cover, which comprises a sealing cap, the input shaft and the sensor cover, wherein the upper end of the sealing cap is clamped and fixed with the upper end of the input shaft, the lower shaft hole of the sealing cap is in interference fit with the interface of the input shaft, the bottom surface of the sealing cap is covered on the top surface of the sensor cover, the bottom surface of the sealing cap is provided with a raised reinforcing rib I, the top surface of the sensor cover is provided with a raised reinforcing rib II, the reinforcing rib I is inserted into a gap between the reinforcing rib II and an inner ring of the sensor cover, and the reinforcing rib II is inserted into a gap between the reinforcing rib I and an outer ring of the sealing cap.
The upper end of the sealing cap is provided with a boss, the upper end of the input shaft is provided with a groove, and the boss of the sealing cap is embedded into the groove of the input shaft.
The sealing cap is an integrated plastic sealing cap.
The first reinforcing ribs and the second reinforcing ribs are the same in number and matched in size.
Compared with the prior art, the utility model ensures the press-in position of the sealing cap by the interference fit of the sealing cap and the input shaft, and avoids the noise caused by the axial movement of the sealing cap in the working process of the steering gear. And the clamping structure between the sealing cap and the input shaft ensures the sealing effect. The reinforcing ribs between the sealing cap and the sensor cover prevent external solid and liquid from invading from the gap between the sealing cap and the sensor cover, and the sealing effect and the anti-corrosion effect are improved. The utility model has the advantages of simple structure of parts, cost saving and high assembly reliability.
Drawings
Fig. 1 is a cross-sectional view of the prior art.
Fig. 2 is a cross-sectional view of the present utility model.
FIG. 3 is a schematic view of an input shaft of the present utility model.
FIG. 4 is a cross-sectional view of the sealing cap of the present utility model.
Fig. 5 is an isometric view of the sealing cap of the present utility model.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings.
Referring to fig. 2-5, the utility model provides a sealing structure of a sealing cap, an input shaft and a sensor cover, which comprises the sealing cap, the input shaft and the sensor cover, wherein the upper end of the sealing cap 2 is clamped and fixed with the upper end of the input shaft 1, and the lower shaft hole 22 of the sealing cap 2 is in interference fit with the interface 12 of the input shaft 1, so that the press mounting position of the sealing cap 2 on the input shaft 1 during press mounting is ensured, the sealing cap 2 is not loosened during rotation of the input shaft 1, and the noise and sealing failure caused by axial movement of the sealing cap 2 are avoided. In order to ensure the sealing effect of the sealing cap 2, the pressing force applied by the press needs to press the sealing cap 2 in place, so as to ensure the matching effect of the sealing cap 2 with the input shaft 1 and the sensor cover 4.
The bottom surface of the sealing cap 2 covers the top surface of the sensor cover 4, the bottom surface of the sealing cap 2 is provided with a first protruding reinforcing rib 23, the top surface of the sensor cover 4 is provided with a second protruding reinforcing rib 41, the first reinforcing rib 23 is inserted into a gap between the second reinforcing rib 41 and the inner ring of the sensor cover 4, and the second reinforcing rib 41 is inserted into a gap between the first reinforcing rib 23 and the outer ring of the sealing cap 2. A labyrinth-like structure is formed among the first reinforcing rib 23, the inner ring of the sensor cover 4, the second reinforcing rib 41 and the outer ring of the sealing cap 2, so that external solid and liquid are not easy to invade from a gap between the sealing cap 2 and the sensor cover 4, and the sealing property and the corrosion resistance of the sealing cap are improved.
The number of the reinforcing ribs one 23 is the same as that of the reinforcing ribs two 41, and the reinforcing ribs one 23 are matched with the reinforcing ribs two 41 in size. The number and the size can be adjusted according to actual requirements, and a more complex labyrinth structure is formed, so that better sealing and corrosion prevention effects are realized.
In the utility model, the upper end of the sealing cap 2 is provided with the boss 21, the upper end of the input shaft 1 is provided with the groove 11, and the boss 21 of the sealing cap 2 is embedded into the groove 11 of the input shaft 1, so that the sealing effect of the sealing cap 2 and the input shaft 1 is ensured.
The sealing cap 2 is an integrated plastic sealing cap. The hardness of the integral plastic sealing cap is higher, so that the sealing cap is prevented from deforming when being pressed on the input shaft 1, and friction abnormal sound caused by contact between the sealing cap 2 and the sensor cover 4 after deformation is avoided.
According to the utility model, the interference fit between the sealing cap and the input shaft ensures the press-in position of the sealing cap, and avoids the noise caused by axial movement of the sealing cap in the working process of the steering gear. And the clamping structure between the sealing cap and the input shaft ensures the sealing effect. The reinforcing ribs between the sealing cap and the sensor cover prevent external solid and liquid from invading from the gap between the sealing cap and the sensor cover, and the sealing effect and the anti-corrosion effect are improved. The utility model has the advantages of simple structure of parts, cost saving and high assembly reliability.
Claims (4)
1. The utility model provides a seal cap, input shaft and sensor cover's seal structure, includes seal cap, input shaft, sensor cover, its characterized in that: the upper end of the sealing cap (2) is fixedly clamped with the upper end of the input shaft (1), the lower shaft hole (22) of the sealing cap (2) is in interference fit with the interface (12) of the input shaft (1), the bottom surface of the sealing cap (2) is covered on the top surface of the sensor cover (4), the bottom surface of the sealing cap (2) is provided with a first raised reinforcing rib (23), the top surface of the sensor cover (4) is provided with a second raised reinforcing rib (41), the first reinforcing rib (23) is inserted into a gap between the second reinforcing rib (41) and the inner ring of the sensor cover (4), and the second reinforcing rib (41) is inserted into a gap between the first reinforcing rib (23) and the outer ring of the sealing cap (2).
2. The sealing structure of a sealing cap, an input shaft and a sensor cover according to claim 1, wherein: the upper end of the sealing cap (2) is provided with a boss (21), the upper end of the input shaft (1) is provided with a groove (11), and the boss (21) of the sealing cap (2) is embedded into the groove (11) of the input shaft (1).
3. The sealing structure of a sealing cap, an input shaft and a sensor cover according to claim 1, wherein: the sealing cap (2) is an integrated plastic sealing cap.
4. The sealing structure of a sealing cap, an input shaft and a sensor cover according to claim 1, wherein: the number of the reinforcing ribs I (23) is the same as that of the reinforcing ribs II (41), and the reinforcing ribs II are matched in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223237662.XU CN219221244U (en) | 2022-12-05 | 2022-12-05 | Sealing structure of sealing cap, input shaft and sensor cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223237662.XU CN219221244U (en) | 2022-12-05 | 2022-12-05 | Sealing structure of sealing cap, input shaft and sensor cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219221244U true CN219221244U (en) | 2023-06-20 |
Family
ID=86737104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223237662.XU Active CN219221244U (en) | 2022-12-05 | 2022-12-05 | Sealing structure of sealing cap, input shaft and sensor cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219221244U (en) |
-
2022
- 2022-12-05 CN CN202223237662.XU patent/CN219221244U/en active Active
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