CN204783407U - Oil sprayer and sealing ring assembly with self-adaptive limiting structure - Google Patents
Oil sprayer and sealing ring assembly with self-adaptive limiting structure Download PDFInfo
- Publication number
- CN204783407U CN204783407U CN201520556403.4U CN201520556403U CN204783407U CN 204783407 U CN204783407 U CN 204783407U CN 201520556403 U CN201520556403 U CN 201520556403U CN 204783407 U CN204783407 U CN 204783407U
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- CN
- China
- Prior art keywords
- oil sprayer
- pressing plate
- shaft shoulder
- seal ring
- ring assembly
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- Expired - Fee Related
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Abstract
The utility model discloses a sprayer and sealing ring assembly with self-adaptation limit structure, including a counterpressure board, be provided with the sprayer of shaft shoulder and be provided with the sealing ring of step installation face, thrust face and mounting hole, be equipped with the rubber layer between clamp plate and the shaft shoulder. The elastic modulus of the rubber is far smaller than that of metal, and larger elastic deformation can be obtained, so that the axial dimension change of the fuel injector can be adapted in a larger range.
Description
Technical field
The utility model relates to automotive Diesel engine part field, is specially a kind of oil sprayer and the seal ring assembly with self adaption limit structure.
Background technique
The distribution engine of Dual Over Head Camshaft is compact, but its external injector body out-of-shape, cannot directly and valve cage cover cap seal.Oil sprayer seal ring is the transition part between oil sprayer and valve cage cover cap, and its effect is exactly realize the sealing between oil sprayer and valve cage cover cap.Seal ring is firmly connected on oil sprayer, and the seal ring of its inside coordinates with oil sprayer and realizes sealing, and its outside cooperation with valve cover cap oil sealing realizes sealing.Seal ring pressing plate is placed in the step attachment face of upper end, and oil sprayer face is a little more than pressing plate, and utilize lever principle to compress oil sprayer, thrust surface and the oil sprayer shaft shoulder of seal ring lower end are fitted, and top and bottom acting in conjunction realizes the axially locating of oil sprayer.
Existing structure utilizes the resiliently deformable of pressing plate at axial compression oil sprayer.Because seal ring pressing plate is placed in the step attachment face of upper end, oil sprayer face is a little more than pressing plate, and the pressing plate after distortion is linear contact lay with actual contact the in oil sprayer face, and during stand under load, contact stress is high.And oil sprayer is in the working environment of high-temperature high-frequency vibration for a long time, be acid test to the pressing plate of distortion.Once the deformation failure of pressing plate, oil sprayer axial float will be caused, gas leakage leakage of oil dangerous.Because the elastic deformation amount of pressing plate is limited, therefore need the strict axial dimension tolerance controlling oil sprayer in minimum scope, the oil sprayer face processing request contacted with pressing plate is higher, has increased considerably difficulty of processing, cycle and cost.
Summary of the invention
In order to overcome above-mentioned deficiency, the utility model provides a kind of oil sprayer and the seal ring assembly with self adaption limit structure.
A kind of oil sprayer and seal ring assembly with self adaption limit structure, comprise a pair pressing plate, be provided with the oil sprayer of the shaft shoulder and be provided with step attachment face, the seal ring of thrust surface and mounting hole, the shaft shoulder of described oil sprayer is positioned at mounting hole, one end of described pressing plate is secured by bolts on step attachment face, fit in the other end of described pressing plate and the upper-end surface of the shaft shoulder, fit in the lower end surface of described thrust surface and the shaft shoulder, rubber layer is provided with between the other end of described pressing plate and the upper-end surface of the shaft shoulder, described rubber layer is vulcanised rubber layer, the other end of described pressing plate is provided with the arc notch matched with oil sprayer outer arced surface.
The beneficial effects of the utility model are as follows:
1, the Young's modulus of rubber is little more than metal, larger resiliently deformable can be obtained, therefore, it is possible in endoadaptation oil sprayer axial dimension change in a big way, the processing request of very big reduction oil sprayer surface of contact, even if oil sprayer face is the black skin do not processed, pressing plate also can utilize the elasticity of rubber to compress oil sprayer adaptively, without the need to artificially adjusting intervention;
2, rubber surface is that face contacts with actual contact the in oil sprayer face, drastically increases contact strength;
3, rubber has larger resistance, is of value to absorption and the sound insulation of dither, is more suitable for the dither working environment of oil sprayer;
4, the first quarter moon profile of pressing plate adapts to oil sprayer outer arced surface admirably, has maximally utilised effective area of contact.
Accompanying drawing explanation
Fig. 1 is oil sprayer and seal ring assembly schematic diagram.
Fig. 2 is oil sprayer and seal ring assembly sectional view.
Fig. 3 is the partial enlarged drawing in pressing plate rubber layer and oil sprayer face.
Embodiment
To the utility model, there is the oil sprayer of self adaption limit structure below in conjunction with accompanying drawing and embodiment of the present utility model and seal ring assembly makes the following instructions.
A kind of oil sprayer and seal ring assembly with self adaption limit structure, comprise a pair pressing plate 3, be provided with the oil sprayer 5 of shaft shoulder 5a and be provided with step attachment face 4a, the seal ring 4 of thrust surface 4b and mounting hole 4c, the shaft shoulder 5a of described oil sprayer 5 is positioned at mounting hole 4c, one end of described pressing plate 3 is fixed on step attachment face 4a by bolt 2, fit in the other end of described pressing plate 3 and the upper-end surface of shaft shoulder 5a, fit in the lower end surface of described thrust surface 4b and shaft shoulder 5a, rubber layer 1 is provided with between the other end of described pressing plate 3 and the upper-end surface of shaft shoulder 5a, described rubber layer 1 is vulcanised rubber layer, the other end of described pressing plate 3 is provided with the arc notch 3a matched with oil sprayer 5 outer arced surface.
The technological scheme that the utility model adopts comprises seal ring 4 and a pair self adaption pressing plate 3, pressing plate 3 is placed in the step attachment face 4a of seal ring 4 upper end, seal ring 4 upper end is anchored on by bolt 2, one end of pressing plate 3 is provided with the arc notch 3a matched with oil sprayer 5 outer arced surface, and this cambered design has maximally utilised effective area of contact.The one side of pressing plate 3 is rubber layer 1, and this rubber layer 1 contacts with oil sprayer 5, utilizes the elastic compression oil sprayer 5 of rubber.The Young's modulus of rubber is little more than metal, larger resiliently deformable can be obtained, therefore, it is possible in the axial dimension change of endoadaptation oil sprayer 5 in a big way, significantly reduce the processing request of oil sprayer 5 surface of contact, even if the surface of contact of oil sprayer 5 is the black skin do not processed, pressing plate 3 also can utilize the elasticity of rubber to compress oil sprayer 5 adaptively, without the need to artificially adjusting intervention.In addition, rubber has larger resistance, is of value to absorption and the sound insulation of dither, is more suitable for the dither working environment of oil sprayer 5.
Claims (3)
1. one kind has oil sprayer and the seal ring assembly of self adaption limit structure, comprise a pair pressing plate (3), be provided with the oil sprayer (5) of the shaft shoulder (5a) and be provided with step attachment face (4a), the seal ring (4) of thrust surface (4b) and mounting hole (4c), it is characterized in that: the shaft shoulder (5a) of described oil sprayer (5) is positioned at mounting hole (4c), one end of described pressing plate (3) is fixed on step attachment face (4a) by bolt (2), fit in the other end of described pressing plate (3) and the upper-end surface of the shaft shoulder (5a), described thrust surface (4b) is fitted with the lower end surface of the shaft shoulder (5a), rubber layer (1) is provided with between the other end of described pressing plate (3) and the upper-end surface of the shaft shoulder (5a).
2. oil sprayer and the seal ring assembly with self adaption limit structure according to claim 1, is characterized in that: described rubber layer (1) is vulcanised rubber layer.
3. oil sprayer and the seal ring assembly with self adaption limit structure according to claim 1, is characterized in that: the other end of described pressing plate (3) is provided with the arc notch (3a) matched with oil sprayer (5) outer arced surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556403.4U CN204783407U (en) | 2015-07-29 | 2015-07-29 | Oil sprayer and sealing ring assembly with self-adaptive limiting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520556403.4U CN204783407U (en) | 2015-07-29 | 2015-07-29 | Oil sprayer and sealing ring assembly with self-adaptive limiting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204783407U true CN204783407U (en) | 2015-11-18 |
Family
ID=54523468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520556403.4U Expired - Fee Related CN204783407U (en) | 2015-07-29 | 2015-07-29 | Oil sprayer and sealing ring assembly with self-adaptive limiting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204783407U (en) |
-
2015
- 2015-07-29 CN CN201520556403.4U patent/CN204783407U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20210729 |