CN204477133U - A kind of commercial car membrane type spring braking air chamber for braking system - Google Patents
A kind of commercial car membrane type spring braking air chamber for braking system Download PDFInfo
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- CN204477133U CN204477133U CN201420815177.2U CN201420815177U CN204477133U CN 204477133 U CN204477133 U CN 204477133U CN 201420815177 U CN201420815177 U CN 201420815177U CN 204477133 U CN204477133 U CN 204477133U
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Abstract
The utility model discloses a kind of commercial car membrane type spring braking air chamber for braking system, comprise energy storage cylinder body, diaphragm cylinder body, energy storage cylinder body, diaphragm cylinder body are connected by connecting cover; Energy storage cylinder body and connecting cover form energy-storing chamber; Diaphragm cylinder body and connecting cover form diaphragm chamber; In energy-storing chamber, establish energy storage piston assembly, energy storage spring, in diaphragm chamber, establish diaphragm, return spring and push rod assembly; Energy storage piston assembly comprises piston only, piston rod; Piston only, piston rod are fastenedly connected by thread matching structure.Adopt technique scheme, simplify product structure, shorten the manufacture cycle; Improve the reliability of product, improving SNR, thus the performance of raising product, production capacity and working life, equip in enormous quantities for various vehicle and lay the foundation.
Description
Technical field
The utility model belongs to the technical field of commercial car braking system actuator device.More specifically, the utility model relates to a kind of commercial car membrane type spring braking air chamber for braking system.
Background technique
As shown in Figure 1, in the prior art, spring brake chamber parking braking and brake off are realized by energy storage piston 1 to-and-fro motion in energy storage cylinder body 2.Because energy storage piston 1 is integral Al-alloy product, bar portion roughness can not be guaranteed, and easily causes energy storage piston 1 to damage O-ring seals 3 when to-and-fro motion.
Model utility content
The utility model provides a kind of commercial car membrane type spring braking air chamber for braking system, its objective is the reliability improving product.
To achieve these goals, the technological scheme that the utility model is taked is:
Commercial car membrane type spring braking air chamber for braking system of the present utility model, comprises energy storage cylinder body, diaphragm cylinder body, and described energy storage cylinder body, diaphragm cylinder body are connected by connecting cover; Energy storage cylinder body and connecting cover form energy-storing chamber; Diaphragm cylinder body and connecting cover form diaphragm chamber; In described energy-storing chamber, establish energy storage piston assembly, energy storage spring, in described diaphragm chamber, establish diaphragm, return spring and push rod assembly; Described energy storage piston assembly comprises piston only, piston rod; Described piston only, piston rod are fastenedly connected by thread matching structure.
On the fitting surface of described worm structure, rubberised layer is set.
At the end face that described piston rod is connected with piston only, sealing gasket assembly is set.
Described piston rod is made up of steel.
The surface of described piston rod is provided with chromium coating.
Described energy storage cylinder body and connecting cover adopt multiple bolt to be fastenedly connected.
Described energy storage cylinder body and the joint of connecting cover, arrange O-ring seals.
Described connecting cover, diaphragm and diaphragm cylinder body are fastenedly connected by clip.
Under the effect of described return spring, described push rod assembly and diaphragm are close to.
At the end face that described piston rod is connected with piston only, sealing gasket assembly is set.
The utility model adopts technique scheme, simplifies product structure, shortens the manufacture cycle; Improve the reliability of product, improving SNR, thus the performance of raising product, production capacity and working life, equip in enormous quantities for various vehicle and lay the foundation.
Accompanying drawing explanation
Below the content expressed by each width accompanying drawing of this specification and the mark in figure are briefly described:
Fig. 1 is the structural representation of prior art, being labeled as wherein:
1, energy storage piston, 2, energy storage cylinder body, 3, O-ring seals.
Fig. 2 is structural representation of the present utility model;
Fig. 3 is the linkage structure schematic diagram of the energy storage piston assembly in Fig. 2.
Being labeled as in Fig. 2 and Fig. 3:
1, energy storage cylinder body, 2, energy storage piston, 3, O-ring seals, 4, piston guide cover, 5, O-ring seals, 6, connecting cover, 7, diaphragm, 8, clip, 9, spring seat, 10, return spring, 11, push rod assembly, 12, diaphragm cylinder body (i.e. brake chamber housing assembly), 13, piston rod, 14, sealing gasket assembly, 15, piston only, 16, thread matching structure.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, embodiment of the present utility model is described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present utility model, technological scheme.
Structure of the present utility model as shown in Figure 2 and Figure 3, be a kind of commercial car membrane type spring braking air chamber for braking system, comprise energy storage cylinder body 1, diaphragm cylinder body 12, described energy storage cylinder body 1, diaphragm cylinder body 12 are connected by connecting cover 6; Energy storage cylinder body 1 and connecting cover 6 form energy-storing chamber; Diaphragm cylinder body 12 and connecting cover 6 form diaphragm chamber; In described energy-storing chamber, establish energy storage piston assembly 2, energy storage spring, in described diaphragm chamber, establish diaphragm 7, return spring 10 and push rod assembly 11.
Annexation of the present utility model: diaphragm spring brake air chamber suction port is connected with relay valve (in system original a kind of valve) air outlet, diaphragm spring brake air chamber is connected on vehicle bridge air chamber mounting bracket by construction bolt, and push rod fork is connected realizes to brake break ouput force with adjustment arm.
In order to improve the reliability of product, the energy storage piston structure of the utility model to existing product carries out Transform Type design and update, improving SNR, thus improves the performance and used life of product.
In order to solve prior art Problems existing and overcome its defect, realize the goal of the invention of reliability improving product, the technological scheme taked of the utility model for,
As shown in Figure 2 and Figure 3, the energy storage piston assembly 2 of commercial car membrane type spring braking air chamber for braking system of the present utility model comprises piston only 15, piston rod 13; Described piston only 15, piston rod 13 are fastenedly connected by thread matching structure 16.
Described piston rod 13, through the hole of connecting cover 6, is contacted with diaphragm 7 by the block rubber of its end; The position contacted with piston rod 13 in the hole of described connecting cover 6, arranges O-ring seals 3 and piston guide cover 4.
Energy storage piston of the present utility model is three independent component compositions, overcomes overall aluminum component piston rod root and easily forms the defect that sand holes and stress concentrates, substantially increase energy storage piston seal performance and life-span.
On the fitting surface of described worm structure, rubberised layer is set.Piston rod 13 and piston only are that 15 thread belt glue are connected, easy to assembly, save cost process time.
At the end face that described piston rod 13 is connected with piston only 15, sealing gasket assembly 14 is set.
Described piston rod 13 is made up of steel.The surface of described piston rod 13 is provided with chromium coating.Piston rod 13 is steel part, and refines after chrome-faced process, substantially increases piston rod surface roughness.
Described energy storage cylinder body 1 adopts multiple bolt to be fastenedly connected with connecting cover 6.Described energy storage cylinder body 1 and the joint of connecting cover 6, arrange O-ring seals 5.Loaded cylinder 1 is connected by 8 M8 screw threads for fastening with connecting cover 6, connects jointing place and is provided with part O-ring seals 5 sealing and dustproof.
Described connecting cover 6, diaphragm 7 and diaphragm cylinder body 12 are fastenedly connected by clip 8.
Under the effect of described return spring 10, described push rod assembly 11 is close to diaphragm 7.Described return spring 10 is coaxially installed with push rod assembly 11, and one end of described return spring 10, is fixed on the middle in diaphragm cylinder body 12; The other end is fixed on the middle of diaphragm 7 by spring seat 9.
At the end face that described piston rod 13 is connected with piston only 15, sealing gasket assembly 14 is set.
Dynamic position relation (i.e. working principle) of the present utility model:
During service brake, from relay valve air outlet, compressed-air actuated air pressure enters into spring brake chamber ante-chamber (service brake cavity) by suction port, pressurized air promotes push rod assembly 11 by diaphragm 7 and moves forward, promote the adjustment arm on brake-toggle shaft, make brake operation, realize service brake.
During parking braking, the pressurized air in energy-storing chamber is discharged by relay valve relief opening, control valve release, under the effect of energy storage spring, promotes push rod assembly 11 and moves forward, promote the adjustment arm on brake-toggle shaft, make brake operation, realize parking braking.
The utility model simplifies product structure, shortens the manufacture cycle, improves production capacity and the performance of product, equips in enormous quantities lay the foundation for various vehicle.
By reference to the accompanying drawings the utility model is exemplarily described above; obvious the utility model specific implementation is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present utility model is conceived and technological scheme is carried out; or design of the present utility model and technological scheme directly applied to other occasion, all within protection domain of the present utility model without to improve.
Claims (10)
1. a commercial car membrane type spring braking air chamber for braking system, comprise energy storage cylinder body (1), diaphragm cylinder body (12), described energy storage cylinder body (1), diaphragm cylinder body (12) are connected by connecting cover (6); Energy storage cylinder body (1) and connecting cover (6) form energy-storing chamber; Diaphragm cylinder body (12) and connecting cover (6) form diaphragm chamber; In described energy-storing chamber, establish energy storage piston assembly (2), energy storage spring, in described diaphragm chamber, establish diaphragm (7), return spring (10) and push rod assembly (11);
It is characterized in that:
Described energy storage piston assembly (2) comprises piston only (15), piston rod (13); Described piston only (15), piston rod (13) are fastenedly connected by thread matching structure (16).
2. according to commercial car membrane type spring braking air chamber for braking system according to claim 1, it is characterized in that: on the fitting surface of described worm structure, rubberised layer is set.
3. according to commercial car membrane type spring braking air chamber for braking system according to claim 1, it is characterized in that: the end face be connected with piston only (15) at described piston rod (13), arranges sealing gasket assembly (14).
4. according to commercial car membrane type spring braking air chamber for braking system according to claim 1, it is characterized in that: described piston rod (13) is made up of steel.
5. according to commercial car membrane type spring braking air chamber for braking system according to claim 4, it is characterized in that: the surface of described piston rod (13) is provided with chromium coating.
6. according to commercial car membrane type spring braking air chamber for braking system according to claim 1, it is characterized in that: described energy storage cylinder body (1) and connecting cover (6) adopt multiple bolt to be fastenedly connected.
7. according to commercial car membrane type spring braking air chamber for braking system according to claim 6, it is characterized in that: described energy storage cylinder body (1) and the joint of connecting cover (6), arrange O-ring seals (5).
8. according to commercial car membrane type spring braking air chamber for braking system according to claim 1, it is characterized in that: described connecting cover (6), diaphragm (7) and diaphragm cylinder body (12) are fastenedly connected by clip (8).
9. according to commercial car membrane type spring braking air chamber for braking system according to claim 1, it is characterized in that: under the effect of described return spring (10), described push rod assembly (11) and diaphragm (7) are close to.
10. according to commercial car membrane type spring braking air chamber for braking system according to claim 1, it is characterized in that: the end face be connected with piston only (15) at described piston rod (13), arranges sealing gasket assembly (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815177.2U CN204477133U (en) | 2014-12-20 | 2014-12-20 | A kind of commercial car membrane type spring braking air chamber for braking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815177.2U CN204477133U (en) | 2014-12-20 | 2014-12-20 | A kind of commercial car membrane type spring braking air chamber for braking system |
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| Publication Number | Publication Date |
|---|---|
| CN204477133U true CN204477133U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420815177.2U Active CN204477133U (en) | 2014-12-20 | 2014-12-20 | A kind of commercial car membrane type spring braking air chamber for braking system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109263620A (en) * | 2018-09-28 | 2019-01-25 | 安徽合力股份有限公司牵引车分公司 | A kind of Trailer equipment and braking system of the braking of band gas |
-
2014
- 2014-12-20 CN CN201420815177.2U patent/CN204477133U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109263620A (en) * | 2018-09-28 | 2019-01-25 | 安徽合力股份有限公司牵引车分公司 | A kind of Trailer equipment and braking system of the braking of band gas |
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