Steady-flow high-speed rail air cylinder capable of stably guaranteeing air path

Abstract

The utility model discloses a steady-flow high-speed rail air cylinder capable of stably guaranteeing an air path, which belongs to the technical field of railway vehicle brake systems and comprises an air cylinder, a steady-flow partition plate is fixedly connected to the inner wall of the air cylinder, steady-flow fins are fixedly connected to the inner wall of the air cylinder, an air outlet pipe is fixedly connected to the inside of the air cylinder, and an air inlet pipe is fixedly connected to the inside of the air cylinder. A sensor is fixedly connected to the surface of the air cylinder, and an exhaust valve is fixedly connected to the interior of the air cylinder; fixing plates are fixedly connected to the surface of the air cylinder, the fixing plates are symmetrically distributed about the center of the air cylinder, and positioning columns are fixedly connected to the upper surfaces of the fixing plates; the upper surface of the fixing plate is movably connected with a high-speed rail supporting frame. According to the steady-flow high-speed rail air cylinder capable of stably guaranteeing the air path, through the arrangement of the connecting block and the cam, the air cylinder and the high-speed rail supporting frame are rapidly connected, the time spent on connection of the air cylinder and the high-speed rail supporting frame is greatly shortened, and the working efficiency in the high-speed rail assembling and maintaining process is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of railway vehicle braking systems, specifically a high-speed rail air cylinder that can stably ensure the airflow of the air circuit. Background Technology

[0002] The braking system of railway vehicles is one of the key technologies to ensure the safe operation of trains. It slows down or stops the train by controlling the friction between the brake and the wheels. In the braking system of high-speed trains, the air cylinder plays a crucial role. It is usually used to store compressed air as the source of braking force. When braking is required, the compressed air in the air cylinder is released and transmitted to the brake cylinder through pipelines, thereby pushing the brake to generate friction and slowing down or stopping the train. The braking system of railway vehicles contains several air cylinders of different volumes. Each air cylinder needs to be installed separately on the suspension components on the car body underframe. The installation process of the air cylinders is complex and requires a large maintenance space, which leads to inconvenience for workers and increased operating costs for users.

[0003] To overcome the above-mentioned defects, the prior art (Chinese patent application number CN201820190371.4, application date 2018-02-05) provides an integrated air cylinder, including a cylinder body and two inner end caps disposed within the cylinder body. The inner end caps divide the internal chamber of the cylinder body into a pressure-reducing cylinder near the left side of the cylinder body, an auxiliary air cylinder near the right side of the cylinder body, and an acceleration and relief air cylinder disposed between the pressure-reducing cylinder and the auxiliary air cylinder. The volume of the acceleration and relief air cylinder is smaller than the volume of the pressure-reducing cylinder, and the volume of the pressure-reducing cylinder is smaller than the volume of the auxiliary air cylinder. This allows for centralized assembly and disassembly, ensuring the reliability of the three-chamber air cylinder, thereby reducing the number of suspension components for installing the air cylinder, reducing manufacturing and maintenance costs, and reducing the weight of installation accessories, thus reducing the vehicle's own weight, increasing the vehicle's load capacity, and improving the overall economic efficiency of the vehicle.

[0004] When assembling high-speed trains, it is necessary to quickly connect the air cylinder to the train to speed up the assembly process, improve production efficiency, and meet market demand. However, the aforementioned device cannot quickly connect the air cylinder during use, resulting in a significant amount of time spent on installation, increased workload for maintenance personnel, higher maintenance costs, and reduced device efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a high-speed rail air cylinder that can stably ensure the airflow of the air circuit, thereby solving the problems mentioned in the background art, such as the inability to quickly connect the air cylinder, which leads to a lot of time spent on installation, increases the workload of maintenance personnel, increases maintenance costs, and reduces the working efficiency of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-speed rail air cylinder that can stably ensure airflow in the air path, comprising an air cylinder, wherein a flow-stabilizing baffle is fixedly connected to the inner wall of the air cylinder, and flow-stabilizing fins are fixedly connected to the inner wall of the air cylinder, and an air outlet pipe is fixedly connected to the inside of the air cylinder, and an air inlet pipe is fixedly connected to the inside of the air cylinder; a sensor is fixedly connected to the surface of the air cylinder, and an exhaust valve is fixedly connected to the inside of the air cylinder; a fixing plate is fixedly connected to the surface of the air cylinder, and the fixing plates are symmetrically distributed about the center of the air cylinder, and a positioning column is fixedly connected to the upper surface of the fixing plate; a high-speed rail support frame is movably connected to the upper surface of the fixing plate, and a fixing block is fixedly connected to the surface of the high-speed rail support frame.

[0007] Preferably, a connecting block is movably connected to the surface of the fixing plate, and the inner wall of the connecting block is convex.

[0008] Preferably, a first spring is fixedly connected to the surface of the connecting block, and a cylinder is fixedly connected to the other end of the first spring, and a cam is fixedly connected to the upper surface of the cylinder.

[0009] Preferably, the cylinder has a sliding groove inside, and the sliding groove is spiral-shaped.

[0010] Preferably, the fixed block has a movable groove inside, and the inner wall of the movable groove is in contact with the surface of the cam.

[0011] Preferably, the high-speed rail support frame has a connecting groove inside, and a force-bearing plate is movably connected to the surface of the connecting groove.

[0012] Preferably, a second spring is fixedly connected to the surface of the force-bearing plate, and the other end of the second spring is fixedly connected to a high-speed rail support frame, and the lower surface of the force-bearing plate is in contact with the upper surface of the positioning column.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-speed rail air cylinder, which can stably ensure the airflow of the air path, adopts a novel structural design. Through the setting of flow-stabilizing baffles and flow-stabilizing fins, it effectively reduces turbulence, stabilizes airflow, prevents boundary layer airflow separation, ensures the overall airflow within the air cylinder is stable, and improves the stability of the device. The specific details are as follows:

[0014] (1) The stable airflow high-speed rail air cylinder that can stably ensure the air circuit, through the set connecting block and cam, enables the air cylinder to be quickly connected to the high-speed rail support frame, which greatly shortens the time spent connecting the air cylinder to the high-speed rail support frame and improves the work efficiency in the assembly and maintenance process of high-speed rail.

[0015] Furthermore, it ensures that the air cylinder can be reliably fixed on the high-speed rail support frame during high-speed rail operation, resisting the effects of various vibrations and external forces.

[0016] (2) The stable airflow high-speed rail air cylinder that can stably ensure the air circuit, through the No. 2 spring and the force plate, enables the air cylinder to quickly separate from the high-speed rail support frame, reducing the working time and workload of maintenance personnel, improving the overall maintenance efficiency, and reducing the time cost of high-speed rail downtime due to maintenance.

[0017] Furthermore, this ensures the reliable fixation of the air cylinder during high-speed rail operation, thereby guaranteeing the safety of high-speed rail operation.

[0018] (3) The stable flow high-speed rail air cylinder that can stably ensure the air path effectively reduces turbulence, stabilizes airflow, prevents boundary layer airflow separation, ensures the overall airflow in the air cylinder is stable, and improves the stability of the device by setting the stable flow baffle and stable flow fin. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection structure between the air cylinder and the air outlet pipe of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection structure between the air cylinder and the flow stabilizing fins of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the fixing plate and the positioning column of this utility model;

[0022] Figure 4 This is a schematic diagram of the cylinder and cam connection structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the connection structure between the fixed block and the movable groove of this utility model;

[0024] Figure 6 This is a schematic diagram of the connection structure between the high-speed rail support frame and the connecting groove of this utility model;

[0025] Figure 7 This utility model Figure 6 Enlarged view of the structure at point A in the middle.

[0026] In the diagram: 1. Air cylinder; 2. Flow stabilizer baffle; 3. Flow stabilizer fin; 4. Sensor; 5. Air outlet pipe; 6. Air inlet pipe; 7. Exhaust valve; 8. Fixing plate; 9. Positioning column; 10. Connecting block; 11. Spring No. 1; 12. Cylinder; 13. Sliding groove; 14. Cam; 15. High-speed rail support frame; 16. Fixing block; 17. Moving groove; 18. Connecting groove; 19. Force plate; 20. Spring No. 2. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1: The stability of the device is improved by using the air cylinder 1, the flow stabilizing baffle 2, and the flow stabilizing fins 3. Figures 1-3 As shown: It includes a blower cylinder 1, a flow stabilizing baffle 2 fixedly connected to the inner wall of the blower cylinder 1, a flow stabilizing fin 3 fixedly connected to the inner wall of the blower cylinder 1, an air outlet pipe 5 fixedly connected to the inside of the blower cylinder 1, an air inlet pipe 6 fixedly connected to the inside of the blower cylinder 1, a sensor 4 fixedly connected to the surface of the blower cylinder 1, an exhaust valve 7 fixedly connected to the inside of the blower cylinder 1, a fixing plate 8 fixedly connected to the surface of the blower cylinder 1, the fixing plates 8 being symmetrically distributed about the center of the blower cylinder 1, a positioning column 9 fixedly connected to the upper surface of the fixing plate 8, a high-speed rail support frame 15 movably connected to the upper surface of the fixing plate 8, and a fixing block 16 fixedly connected to the surface of the high-speed rail support frame 15.

[0029] The air cylinder 1 is installed on the lower surface of the high-speed rail support frame 15 via the connecting block 10. Gas enters the air cylinder 1 from an external air source through the air inlet pipe 6. When the airflow passes through the tortuous channel formed by the flow stabilizing baffle 2, its flow direction changes continuously, thereby reducing the flow velocity and making the airflow distribution more uniform, effectively reducing turbulence and stabilizing the airflow. At the same time, the flow stabilizing fins 3 disturb the airflow boundary layer near the cylinder wall, preventing the boundary layer airflow separation, further optimizing the airflow stability, ensuring that the overall airflow in the air cylinder 1 is stable, providing a stable airflow output for the air outlet pipe 5, and transmitting the data to the high-speed rail control system through the sensor 4, so that the control system can monitor the operating status of the air cylinder 1 at any time. The fixing plate 8 is fixedly connected to the air cylinder 1 to ensure that the air cylinder 1 is subjected to uniform force during installation, reducing vibration and instability caused by installation deviation.

[0030] In Example 2, unlike Example 1, a quick connection between the air cylinder 1 and the high-speed rail support frame 15 is achieved through the connection block 10, the first spring 11, and the fixing block 16. Figures 4-5 As shown: A connecting block 10 is movably connected to the surface of the fixed plate 8, and the inner wall of the connecting block 10 is protruding. A first spring 11 is fixedly connected to the surface of the connecting block 10, and a cylinder 12 is fixedly connected to the other end of the first spring 11. A cam 14 is fixedly connected to the upper surface of the cylinder 12. A sliding groove 13 is opened inside the cylinder 12, and the sliding groove 13 is spiral. A moving groove 17 is opened inside the fixed block 16, and the inner wall of the moving groove 17 is in contact with the surface of the cam 14.

[0031] When the air cylinder 1 is connected to the high-speed rail support frame 15, the connecting block 10 is pushed, causing it to slide inside the fixed plate 8. The connecting block 10 also compresses the first spring 11, causing the first spring 11 to contract towards the surface of the cylinder 12. At the same time, the protrusion on the inner wall of the connecting block 10 slides on the surface of the sliding groove 13 inside the cylinder 12, causing the cam 14 to rotate on the surface of the moving groove 17. This achieves a quick connection between the air cylinder 1 and the high-speed rail support frame 15, greatly shortening the time spent connecting the air cylinder 1 and the high-speed rail support frame 15, improving the work efficiency in the assembly and maintenance of high-speed rail, and ensuring that the air cylinder 1 can be reliably fixed on the high-speed rail support frame 15 during high-speed rail operation, resisting the influence of various vibrations and external forces.

[0032] In Example 3, unlike Example 2, the air cylinder 1 and the high-speed rail support frame 15 are quickly separated through the connecting groove 18, the force plate 19, and the second spring 20. Figures 6-7 As shown: The high-speed rail support frame 15 has a connecting groove 18 inside, and a force plate 19 is movably connected to the surface of the connecting groove 18. A second spring 20 is fixedly connected to the surface of the force plate 19, and the other end of the second spring 20 is fixedly connected to the high-speed rail support frame 15. The lower surface of the force plate 19 is in contact with the upper surface of the positioning column 9.

[0033] When the air cylinder 1 is disassembled from the high-speed rail support frame 15, the connecting block 10 is pushed again, and the cam 14 rotates on the surface of the moving groove 17, so that the cam 14 separates from the fixed block 16. The second spring 20 on the surface of the connecting groove 18 pushes the force plate 19, so that the force plate 19 pushes the positioning column 9 to slide on the surface of the connecting groove 18, thereby realizing the rapid separation of the air cylinder 1 from the high-speed rail support frame 15, reducing the working time and workload of maintenance personnel, improving the overall maintenance efficiency, reducing the time cost of high-speed rail downtime due to maintenance, and ensuring the reliable fixation of the air cylinder 1 during high-speed rail operation, thereby ensuring the safety of high-speed rail operation.

[0034] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed rail air cylinder that can stably ensure airflow, comprising an air cylinder (1), wherein a flow stabilizing baffle (2) is fixedly connected to the inner wall of the air cylinder (1), and a flow stabilizing fin (3) is fixedly connected to the inner wall of the air cylinder (1), and an air outlet pipe (5) is fixedly connected inside the air cylinder (1), and an air inlet pipe (6) is fixedly connected inside the air cylinder (1); Its features are: A sensor (4) is fixedly connected to the surface of the air cylinder (1), and an exhaust valve (7) is fixedly connected inside the air cylinder (1); A fixing plate (8) is fixedly connected to the surface of the air cylinder (1), and the fixing plate (8) is symmetrically distributed about the center of the air cylinder (1), and a positioning column (9) is fixedly connected to the upper surface of the fixing plate (8); The upper surface of the fixed plate (8) is movably connected to the high-speed rail support frame (15), and the surface of the high-speed rail support frame (15) is fixedly connected to the fixed block (16).

2. The steady flow high-speed air cylinder capable of stably ensuring an air passage according to claim 1, characterized in that: The surface of the fixing plate (8) is movably connected to a connecting block (10), and the inner wall of the connecting block (10) is protruding.

3. The steady flow high-speed air cylinder capable of stably ensuring an air passage according to claim 2, characterized in that: A first spring (11) is fixedly connected to the surface of the connecting block (10), and a cylinder (12) is fixedly connected to the other end of the first spring (11). A cam (14) is fixedly connected to the upper surface of the cylinder (12), and the cylinder (12) is rotatably disposed inside the support frame (15).

4. The steady flow high-speed air cylinder capable of stably ensuring an air passage according to claim 3, characterized in that: The cylinder (12) has a sliding groove (13) inside, and the sliding groove (13) is spiral.

5. The steady flow high-speed air cylinder capable of stably ensuring an air passage according to claim 4, characterized in that: The fixed block (16) has a movable groove (17) inside, and the inner wall of the movable groove (17) is in contact with the surface of the cam (14).

6. The steady flow high-speed air cylinder capable of stably ensuring an air passage according to claim 1, characterized in that: The high-speed rail support frame (15) has a connecting groove (18) inside, and a force-bearing plate (19) is movably connected to the surface of the connecting groove (18).

7. A high-speed rail air cylinder capable of stably ensuring airflow in a stable air path, as described in claim 6, is characterized in that: A second spring (20) is fixedly connected to the surface of the force plate (19), and a high-speed rail support frame (15) is fixedly connected to the other end of the second spring (20). The lower surface of the force plate (19) is in contact with the upper surface of the positioning column (9).

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