Iron piston for brake chamber
By designing structures such as the oil-through tank, oil inlet box, lower ring belt on the brake air chamber piston, and combining wear-resistant coating and solenoid valve, the piston wear problem is solved, achieving uniform distribution of lubricating oil, extending the piston life, and improving the reliability and efficiency of the brake system.
Patent Information
- Application Number
- CN202422555194.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-10-22
AI Technical Summary
The existing brake air chamber pistons during long-term use due to friction with the air chamber walls, which affects the performance of the piston and may cause the brake system to fail.
An iron piston for brake air chamber is designed, including a structure such as the oil-through tank, oil inlet box, lower ring belt, oil-through pipe, recessed layer and convex layer. Combined with wear-resistant coating and solenoid valve, it ensures the uniform distribution and continuous supply of lubricating oil, and reduces friction and wear.
Through the continuous supply and uniform distribution of lubricating oil, the friction between the piston and the interior wall of the air chamber is significantly reduced, the service life of the piston is extended, and the reliability and efficiency of the brake system are improved, especially under high load and high frequency conditions.
Smart Images

Figure CN223076078U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pistons, and particularly relates to an iron piston for a brake chamber. Background Art
[0002] In a pneumatic braking system, the air chamber is a key part for controlling braking, and one of its core components is the piston. In the prior art, the piston used in the brake chamber often has wear problems during long-term use, which is mainly caused by the contact between the piston and the inner wall of the air chamber under friction conditions. Wear not only affects the performance of the piston but also leads to the failure of the braking system. Therefore, a new type of piston is needed to solve the problems existing in the prior art. Content of the Utility Model
[0003] The purpose of the utility model is to provide an iron piston for a brake chamber to solve the problems existing in the prior art.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is an iron piston for a brake chamber, which includes a plug cover. A fuel tank is vertically penetrated through the center of the plug cover, and a piston rod is vertically penetrated through the center of the fuel tank. An oil inlet box is arranged on the periphery of the fuel tank, and a circular lower ring belt is arranged below the oil inlet box. A plurality of through holes are formed in the lower ring belt. A plurality of oil pipes are arranged on the periphery of the fuel tank near the bottom of the fuel tank. A plurality of concave layers are formed on the inner wall of the plug cover, and a plurality of convex layers are arranged on the outer wall of the plug cover.
[0005] Preferably, an electromagnetic valve is arranged on the oil inlet box.
[0006] Preferably, a chassis is arranged below the plug cover, and a retention groove is formed on the chassis.
[0007] Preferably, the plug cover is made of iron, and a wear-resistant coating is formed on the surface of the plug cover by plasma spraying or electroplating.
[0008] Preferably, the inner diameter of the plug cover is 24 cm.
[0009] Preferably, the fuel tank is made of aluminum alloy.
[0010] Preferably, the outer surface of the plug cover is arc-shaped.
[0011] Compared with the prior art, the advantages and positive effects of the utility model are as follows.
[0012] The setting of the through-tank in this utility model enables the lubricating oil to be effectively distributed between the piston and the inner wall of the air chamber. By setting the through-tank in the center of the plug cover, it can ensure the uniform distribution of the lubricant inside and outside the piston, thereby reducing friction and wear. The arrangement of multiple through-oil pipes on the periphery of the through-tank helps to further distribute the lubricating oil and ensure continuous lubrication of the piston during use. This design can reduce the direct friction between the piston and the inner wall of the air chamber, thus reducing the wear rate. The oil inlet box can supply lubricating oil to the through-tank, further ensuring an adequate supply of the lubricant. In this way, the piston can be continuously lubricated during operation, reducing frictional losses. The design of the lower ring belt and the through-hole can not only guide the lubricating oil to flow to the outer wall area of the piston but also effectively disperse the lubricating oil through the annular through-hole. The annular design of the lower ring belt can enhance the stability of the oil film, thereby extending the service life of the piston. The design of the concave layer and the convex layer can effectively disperse the frictional force and reduce the wear rate. Generally speaking, this design helps to reduce the friction between the piston and the inner wall of the air chamber through the continuous supply and uniform distribution of the lubricating oil, thereby reducing wear and significantly extending the service life of the piston. A well-lubricated piston can work more smoothly, thus improving the overall performance and reliability of the braking system, and can significantly enhance the reliability and efficiency of the braking system, especially under high-load and high-frequency working conditions. Brief Description of the Drawings
[0013] In order to more clearly illustrate the technical solutions of the embodiments of this utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are some embodiments of this utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0014] Figure 1 It is a top-down perspective view of an iron piston for a brake air chamber;
[0015] Figure 2 It is a side perspective view of an iron piston for a brake air chamber;
[0016] Figure 3 It is a bottom-up perspective view of an iron piston for a brake air chamber.
[0017] In the above figures, 1. Plug cover, 2. Through-tank, 3. Plug rod, 4. Oil inlet box, 5. Solenoid valve, 6. Chassis, 7. Retention groove, 8. Convex layer, 9. Lower ring belt, 10. Concave layer, 11. Through-oil pipe, 12. Through-hole. Detailed Embodiment
[0018] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the following further describes the present utility model in conjunction with the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0019] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.
[0020] Embodiment 1, as Figures 1-3 shown, the following specifically describes the specific design of the above key components: An iron piston for a brake chamber, including a plug cover 1. A fuel tank 2 is vertically penetrated through the center of the plug cover 1. A plug rod 3 is vertically penetrated through the center of the fuel tank 2. An oil inlet box 4 is arranged on the periphery of the fuel tank 2. A circular lower ring belt 9 is arranged below the oil inlet box 4. A plurality of through holes 12 are formed in the lower ring belt 9. A plurality of oil pipes 11 are arranged on the periphery of the fuel tank 2 near the bottom of the fuel tank 2. A plurality of concave layers 10 are formed on the inner wall of the plug cover 1. A plurality of convex layers 8 are arranged on the outer wall of the plug cover 1. First, the arrangement of the fuel tank 2 ensures that the lubricating oil can be evenly distributed between the piston and the inner wall of the air chamber, which helps to reduce direct friction and wear. The oil pipes 11 arranged in the center of the fuel tank 2 release the lubricating oil, further distributing the lubricating oil to various areas of the piston to ensure continuous supply of the lubricating oil. The function of the oil inlet box 4 is to provide lubricating oil for the fuel tank 2, thus ensuring sufficient oil volume. The circular design of the lower ring belt 9 and the plurality of through holes 12 help to guide and disperse the lubricating oil to the outer wall area of the piston, enhancing the stability of the oil film. The design of the concave layers 10 and the convex layers 8 on the inner and outer walls of the plug cover 1 also helps to effectively disperse the frictional force, thereby reducing the wear rate. The combined action of these designs enables the piston to be continuously and evenly lubricated under high-load and high-frequency working conditions, thereby improving the overall performance and reliability of the braking system. By reducing frictional losses and extending the service life of the piston, this design can significantly improve the efficiency and stability of the braking system.
[0021] To further ensure the stability and reliability during braking, a solenoid valve 5 is provided on the oil inlet box 4, a chassis 6 is provided below the plug cover 1, a retention groove 7 is formed on the chassis 6, the plug cover 1 is made of iron, a wear-resistant coating is formed on the surface of the plug cover 1 by plasma spraying or electroplating, the inner diameter of the plug cover 1 is 24 cm, the fuel tank 2 is made of aluminum alloy, the outer surface of the plug cover 1 is arc-shaped, and the surface of the plug cover 1 is treated by plasma spraying or electroplating, which can significantly improve the wear resistance and reduce the wear caused by friction. This coating can withstand high-pressure and high-friction environments and extend the service life. The retention groove 7 of the chassis 6 can better receive the lubricating oil released from the through hole 12 below the lower ring belt 9 and prevent liquid leakage. The combination of the iron plug cover 1 and the aluminum alloy fuel tank 2 provides good strength and durability without being too heavy. Aluminum alloy is lightweight and has high strength, suitable for making the outer shell of the fuel tank 2. The setting of the solenoid valve 5 can accurately control the oil flow. By switching the solenoid valve 5, the flow rate of the oil can be adjusted to ensure that the system supplies oil as needed, avoiding too much or too little. The outer surface of the plug cover 1 is arc-shaped, which helps to disperse external forces, reduce local stress concentration, and increase the stability of the overall structure. This design combines the advantages of high wear resistance, strong sealing, high structural strength, and precise fluid control to ensure the stability and reliability of the system.
[0022] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.
[0023] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution content of the present invention still fall within the protection scope of the technical solution of the present invention.
Claims
1. An iron piston for a brake chamber, characterized in that, It includes a plug cover. A fuel tank is vertically penetrated through the center of the plug cover. A plug rod is vertically penetrated through the center of the fuel tank. An oil inlet box is arranged on the peripheral side of the fuel tank. An annular lower ring belt is arranged below the oil inlet box. A plurality of through holes are formed in the lower ring belt. A plurality of oil pipes are arranged on the peripheral side of the fuel tank near the bottom of the fuel tank. A plurality of concave layers are formed on the inner wall of the plug cover. A plurality of convex layers are arranged on the outer wall of the plug cover.
2. The iron piston for a brake chamber according to claim 1, wherein, An electromagnetic valve is arranged on the oil inlet box.
3. The iron piston for a brake chamber according to claim 2, wherein, A chassis is arranged below the plug cover. A retention groove is formed in the chassis.
4. The iron piston for a brake chamber according to claim 3, characterized in that, The plug cover is made of iron, and a wear-resistant coating is formed on the surface of the plug cover by plasma spraying or electroplating.
5. The iron piston for a brake chamber according to claim 4, wherein, The inner diameter of the plug cover is 24 cm.
6. The iron piston for a brake chamber according to claim 5, characterized in that, The fuel tank is made of aluminum alloy.
7. The iron piston for a brake chamber according to claim 6, characterized in that, The outer surface of the plug cover is arc-shaped.