CN202811914U - Casing in brake air chamber - Google Patents
Casing in brake air chamber Download PDFInfo
- Publication number
- CN202811914U CN202811914U CN 201220403257 CN201220403257U CN202811914U CN 202811914 U CN202811914 U CN 202811914U CN 201220403257 CN201220403257 CN 201220403257 CN 201220403257 U CN201220403257 U CN 201220403257U CN 202811914 U CN202811914 U CN 202811914U
- Authority
- CN
- China
- Prior art keywords
- casing
- brake air
- air chamber
- pilot hole
- layer
- 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.)
- Expired - Fee Related
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- Sealing Devices (AREA)
Abstract
The utility model discloses a casing in a brake air chamber. The casing in the brake air chamber comprises a body and a guide hole formed in the middle of the body, a shaft sleeve is arranged in the middle of the guide hole, the shaft sleeve is in a double-metal structure, an outer layer of the shaft sleeve is a steel metal layer, and an inner layer of the shaft sleeve is a tin bronze layer. The casing in the brake air chamber is applied to the field of spring brake air chambers.
Description
Technical field
The utility model relates to a kind of brake chamber, relates in particular to the middle shell on a kind of brake chamber.
Background technique
Spring brake chamber is a vitals for brake system of car such as heavy-load automobile, extraordinary commercial vehicles, and the quality of its performance is directly connected to the Security of service brake.Spring brake chamber comprises middle shell, be provided with pilot hole in the middle of the middle shell, pilot hole not only need have guide function, also need have sealing function, and O-ring seals only is housed on the common pilot hole, in push rod and the frequent contact process of pilot hole, seal ring produces wearing and tearing, distortion or distortion easily, thereby affects seal ring working life, the middle shell material is aluminum alloy simultaneously, and the material of push rod is steel, thereby produces inordinate wear easily, thereby impact is led, sealability.
The model utility content
The technical problems to be solved in the utility model provides that a kind of guide effect is good, the brake chamber middle shell of long service life.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model comprises body, is located at the middle pilot hole of body, is provided with axle sleeve in the middle of the described pilot hole, and described axle sleeve is bimetal structure, and its skin is the steel metal layer, and its internal layer is the tin bronze layer.
The utility model compared with prior art has following obvious advantage and beneficial effect:
1, guide effect is good.Because the utility model is set up axle sleeve in the middle of pilot hole, improve the wear resistance at guiding position, thereby improve guide effect.
2, long service life.Because the axle sleeve of the utility model in the middle of pilot hole is bimetal structure, its skin is the steel metal layer, and internal layer is the tin bronze layer, but Effective Raise axle sleeve intensity increases the service life.
Description of drawings
Accompanying drawing is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and the specific embodiments the utility model is described in further detail:
As shown in drawings: the utility model comprises body 1, is located at the pilot hole 2 of body 1 centre, is provided with axle sleeve in the middle of the pilot hole 2, and axle sleeve is bimetal structure, and its skin is steel metal layer 3, and its internal layer is tin bronze layer 5.
Claims (1)
1. a brake chamber middle shell comprises body, is located at the middle pilot hole of body, it is characterized in that being provided with axle sleeve in the middle of the described pilot hole, and described axle sleeve is bimetal structure, and its skin is the steel metal layer, and its internal layer is the tin bronze layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403257 CN202811914U (en) | 2012-05-08 | 2012-08-08 | Casing in brake air chamber |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220237179.9 | 2012-05-08 | ||
| CN201220237179 | 2012-05-08 | ||
| CN 201220403257 CN202811914U (en) | 2012-05-08 | 2012-08-08 | Casing in brake air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202811914U true CN202811914U (en) | 2013-03-20 |
Family
ID=47870789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220403257 Expired - Fee Related CN202811914U (en) | 2012-05-08 | 2012-08-08 | Casing in brake air chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202811914U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819230A (en) * | 2015-05-10 | 2015-08-05 | 徐伯琴 | Spring brake air chamber |
| CN104832571A (en) * | 2015-05-10 | 2015-08-12 | 徐伯琴 | Middle housing of brake chamber |
| CN104847814A (en) * | 2015-05-10 | 2015-08-19 | 徐伯琴 | Wear-resisting type middle shell |
-
2012
- 2012-08-08 CN CN 201220403257 patent/CN202811914U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819230A (en) * | 2015-05-10 | 2015-08-05 | 徐伯琴 | Spring brake air chamber |
| CN104832571A (en) * | 2015-05-10 | 2015-08-12 | 徐伯琴 | Middle housing of brake chamber |
| CN104847814A (en) * | 2015-05-10 | 2015-08-19 | 徐伯琴 | Wear-resisting type middle shell |
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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 |
Granted publication date: 20130320 Termination date: 20140808 |
|
| EXPY | Termination of patent right or utility model |