Wagon braking simulation practical training platform for vocational education

Abstract

The utility model belongs to the technical field of simulation practical training platforms, and particularly relates to a rail wagon braking simulation practical training platform for vocational education, which comprises a main air supply valve, an air storage cylinder, an air storage cylinder sensor, a pressure regulating valve, a braking main air inlet pipe, a computer control system, a braking air supply and ventilation pipe system and an empty and load adjusting device, an air storage cylinder sensor is installed on the air storage cylinder, the air storage cylinder is connected with a braking air supply and ventilation pipe system through a braking main air inlet pipe, the air storage cylinder sensor is electrically connected with a computer control system, and the braking air supply and ventilation pipe system is connected with an empty and load adjusting device. And the empty and load adjusting device is electrically connected with the computer control system. According to the utility model, the problem that the teaching and training effects are not ideal due to the fact that the braking principle and the braking effect of the vehicle cannot be visually displayed and operated interactively in the traditional railway vehicle teaching and training process is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of simulation training platforms, and in particular relates to a railway freight car braking simulation training platform for vocational education. Background Art

[0002] Railway freight cars are the means of transport for completing railway freight transportation tasks, and the braking system is one of the important components of railway freight cars. It is the actuator for the locomotive to slow down and stop, and is an essential device to ensure the safety of train operation. For modern railways, the importance of braking is not only a safety issue. Braking has become an important factor that restricts the further improvement of train speed and traction quality. At present, when railway vocational colleges offer railway vehicle courses and when vehicle maintenance units provide vocational education on vehicle braking for employees, they often use textbook content or introduce the relevant components after disassembling the brake valve, or watch teaching video courseware to understand the working principle of the brake system and the working status of the brake valve. It is impossible to effectively learn and understand the actual operation status of the various components of the vehicle brake and the associated pressure signal control piping. The teaching effect cannot adapt to the on-site environment, and it does not achieve good results in cultivating students and improving the skills of application personnel. Utility Model Content

[0003] Aiming at the technical problem that the above-mentioned teaching effect cannot adapt to the on-site environment and cannot achieve good results in the training of students and the improvement of the skills of application personnel, the utility model provides a railway freight vehicle braking simulation training platform for vocational education.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A railway freight vehicle braking simulation training platform for vocational education includes a main air supply valve, an air storage cylinder, an air storage cylinder sensor, a pressure regulating valve, a main brake air inlet pipe, a computer control system, a brake air supply and ventilation pipe system, and an empty and loaded vehicle adjustment device. The main air supply valve is connected to the air storage cylinder, an air storage cylinder sensor is installed on the air storage cylinder, the air storage cylinder is connected to the brake air supply and ventilation pipe system through the main brake air inlet pipe, the air storage cylinder sensor is electrically connected to the computer control system, the brake air supply and ventilation pipe system is connected to the empty and loaded vehicle adjustment device, the empty and loaded vehicle adjustment device is electrically connected to the computer control system, and the computer control system is electrically connected to a large display screen for teaching.

[0006] The computer control system includes an operation console, an operation touch screen, a system power supply, and a control computer. The operation console is electrically connected to the system power supply, the control computer is electrically connected to the operation console, the operation console is electrically connected to the operation touch screen, the control computer is electrically connected to a large display screen for teaching, and the large display screen for teaching is electrically connected to the system power supply.

[0007] The brake air supply and ventilation pipe system includes an electromagnetic reversing valve seat, a brake pipe fast-charging solenoid valve, a brake pipe slow-charging solenoid valve, a brake sensitivity exhaust solenoid valve, a commonly used brake exhaust solenoid valve, an emergency exhaust solenoid valve, a brake stability solenoid valve, a quick exhaust solenoid valve, and a brake hose. One end of the electromagnetic reversing valve seat is connected to the empty and load vehicle adjustment device through the brake hose, and the other end of the electromagnetic reversing valve seat is connected to the brake main air inlet pipe. The electromagnetic reversing valve seat is sequentially provided with a brake pipe fast-charging solenoid valve, a brake pipe slow-charging solenoid valve, a brake sensitivity exhaust solenoid valve, a commonly used brake exhaust solenoid valve, an emergency exhaust solenoid valve, a brake stability solenoid valve and a quick exhaust solenoid valve.

[0008] The empty and loaded vehicle adjustment device includes a brake pipe main pipe, a brake pipe sensor, a combined dust collector, a 120 control valve, an acceleration relief air cylinder, an acceleration relief air cylinder sensor, an auxiliary air cylinder, an auxiliary air cylinder sensor, a first brake shoe pressure sensor, a second brake shoe pressure sensor, a rear brake lever, a brake rear pull rod, a brake adjuster, a third brake shoe pressure sensor, a brake lever, a fourth brake shoe pressure sensor, a wheel, a brake beam, a front brake push rod, a front brake lever, a brake cylinder, a brake cylinder push rod stroke sensor, a brake cylinder sensor, a pressure limiting valve, a pressure reducing air cylinder, a pressure reducing air cylinder sensor, a sensing valve and an empty and loaded vehicle suppression disc assembly, the brake pipe main pipe is connected to a brake hose, the brake pipe main pipe is connected to a combined dust collector, the brake pipe sensor is installed on the brake pipe main pipe, and the combined dust collector is connected to the combined dust collector.

[0009] The combined vacuum cleaner is respectively connected to an acceleration relief air cylinder, an auxiliary air cylinder and a pressure limiting valve; an acceleration relief air cylinder sensor is installed on the acceleration relief air cylinder; and an auxiliary air cylinder sensor is installed on the auxiliary air cylinder.

[0010] Wheels are installed at both ends of the rear brake lever, and the two wheels of the rear brake lever are respectively installed with a first brake shoe pressure sensor and a second brake shoe pressure sensor. The brake rear pull rod is connected to the rear brake lever, and the brake rear pull rod is connected to a brake adjuster.

[0011] Wheels are installed at both ends of the brake lever, and the two wheels of the brake lever are installed with a third brake shoe pressure sensor and a fourth brake shoe pressure sensor respectively. The brake lever is connected to a brake beam, and the brake beam is connected to a front brake push rod, and the front brake push rod is connected to a front brake lever, and the front brake lever is connected to a brake adjuster.

[0012] The front brake lever is connected to the brake cylinder, a brake cylinder push rod stroke sensor is installed on the front brake lever, a brake cylinder sensor is installed on the brake cylinder, the brake cylinder is respectively connected to the pressure limiting valve and the sensing valve and the empty and loaded vehicle suppression disc assembly, the sensing valve and the empty and loaded vehicle suppression disc assembly are connected to the pressure limiting valve through the pressure reducing air cylinder, and a pressure reducing air cylinder sensor is installed on the pressure reducing air cylinder.

[0013] The system power supply is electrically connected to a brake pipe fast charge solenoid valve, a brake pipe slow charge solenoid valve, a brake sensitivity exhaust solenoid valve, a common brake exhaust solenoid valve, an emergency exhaust solenoid valve, a brake stability solenoid valve, a fast exhaust solenoid valve, a brake pipe sensor, an acceleration relief air cylinder sensor, an auxiliary air cylinder sensor, a first brake shoe pressure sensor, a second brake shoe pressure sensor, a third brake shoe pressure sensor, a fourth brake shoe pressure sensor, a brake cylinder push rod stroke sensor, a brake cylinder sensor, and a pressure reduction air cylinder sensor.

[0014] The control computer is electrically connected to the brake pipe sensor, the acceleration relief air cylinder sensor, the auxiliary air cylinder sensor, the first brake shoe pressure sensor, the second brake shoe pressure sensor, the third brake shoe pressure sensor, the fourth brake shoe pressure sensor, the brake cylinder push rod stroke sensor, the brake cylinder sensor, and the pressure reduction air cylinder sensor.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This new system solves the problem of poor teaching and training results caused by the lack of intuitive display and interactive operation of vehicle braking principles and braking effects in traditional railway vehicle teaching and training. By integrating the components of the actual brake pipe system of a simulated railway freight vehicle, the signal acquisition and control system, and the demonstration system, the braking conditions of real railway vehicles are simulated. After collecting the status of each vehicle braking system component and displaying it on the teaching screen, students can intuitively understand the braking principles and brake fault analysis of railway vehicles and experience the actual components of the vehicle braking system, which can significantly improve the teaching and training results of students. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons skilled in the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, provided they do not affect the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0019] Figure 1 This is a structural diagram of the utility model.

[0020] Among them: 1 is the main air supply valve, 2 is the air storage cylinder, 3 is the air storage cylinder sensor, 4 is the pressure regulating valve, 5 is the brake main air inlet pipe, 6 is the operation console, 7 is the operation touch screen, 8 is the system power supply, 9 is the control computer, 10 is the electromagnetic reversing valve seat, 11 is the brake pipe fast charging solenoid valve, 12 is the brake pipe slow charging solenoid valve, 13 is the brake sensitivity exhaust solenoid valve, 14 is the common brake exhaust solenoid valve, 15 is the emergency exhaust solenoid valve, 16 is the brake stability solenoid valve, 17 is the fast exhaust solenoid valve, 18 is the brake hose, 19 is the brake pipe main pipe, 20 is the brake pipe sensor, 21 is the combined vacuum cleaner, 22 is the 120 control valve, 23 is the acceleration relief air cylinder, 24 is the acceleration The speed relief air cylinder sensor, 25 is the auxiliary air cylinder, 26 is the auxiliary air cylinder sensor, 27 is the first brake shoe pressure sensor, 28 is the second brake shoe pressure sensor, 29 is the rear brake lever, 30 is the brake rear pull rod, 31 is the brake adjuster, 32 is the third brake shoe pressure sensor, 33 is the brake lever, 34 is the fourth brake shoe pressure sensor, 35 is the wheel, 36 is the brake beam, 37 is the front brake push rod, 38 is the front brake lever, 39 is the brake cylinder, 40 is the brake cylinder push rod stroke sensor, 41 is the brake cylinder sensor, 42 is the pressure limiting valve, 43 is the pressure reducing air cylinder, 44 is the pressure reducing air cylinder sensor, 45 is the sensing valve and empty and load vehicle suppression plate assembly, and 46 is a large display screen for teaching. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. These descriptions are only to further illustrate the features and advantages of the present invention, rather than to limit the claims of the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0022] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0025] A railway freight vehicle braking simulation training platform for vocational education, such as Figure 1 As shown, the system includes a main air supply valve 1, an air reservoir 2, an air reservoir sensor 3, a pressure regulating valve 4, a main brake air inlet pipe 5, a computer control system, a brake air supply and ventilation piping system, and an empty and loaded vehicle adjustment device. The main air supply valve 1 controls the flow of high-pressure air generated by the air compressor into the air reservoir 2. The air reservoir sensor 3 monitors pressure changes within the air reservoir 2. Pressurized air within the air reservoir 2 is transported through the main brake air inlet pipe 5 to the brake air supply and ventilation piping system for use in the braking and ventilation systems. The air reservoir sensor 3 transmits the monitored pressure information to the computer control system for real-time pressure monitoring and adjustment. The empty and loaded vehicle adjustment device automatically adjusts the air pressure within the brake cylinder according to the vehicle load, matching the cylinder pressure to the vehicle load. The empty and loaded vehicle adjustment device transmits vehicle load information to the computer control system, which adjusts the operating state of the empty and loaded vehicle adjustment device accordingly. The computer control system transmits real-time data to a large display screen 46 for teaching purposes, displaying system status and data. The training platform uses the main controlled air source to supply air to the air storage cylinder 2 through the main air supply valve 1, and adjusts the air source pressure to about 550kPa through the pressure regulating valve 4 to simulate the air source of the railway vehicle braking system.

[0026] Furthermore, the system power supply 8 supplies power to the entire system. The operation console 6 is electrically connected to the system power supply 8 to ensure that it obtains the necessary power support. At the same time, the control computer 9 is electrically connected to the operation console 6 to realize data communication and function control. The operation console 6 is electrically connected to the operation touch screen 7, which is usually connected through a DC power supply to ensure that the touch screen obtains a stable voltage (for example, DC24V). The control computer 9 is also electrically connected to a large display screen 46 for teaching. It is implemented through an RS-422 interface or other communication interface to ensure that the computer can transmit the displayed content to the large screen. The large display screen 46 for teaching is also electrically connected to the system power supply 8 to ensure its normal operation. It is connected through a DC power supply to ensure the stable operation of the large screen.

[0027] Furthermore, one end of the electromagnetic reversing valve seat 10 is connected to the empty and loaded vehicle adjustment device via a brake hose 18, and the other end is connected to the main brake air inlet pipe 5. When the system is activated, compressed air in the main brake air inlet pipe 5 enters the braking system through the electromagnetic reversing valve seat 10. The brake pipe fast-charge solenoid valve 11, brake pipe slow-charge solenoid valve 12, brake sensitivity exhaust solenoid valve 13, normal brake exhaust solenoid valve 14, emergency exhaust solenoid valve 15, brake stability solenoid valve 16, and rapid exhaust solenoid valve 17 are installed on the electromagnetic reversing valve seat 10 and connected to the brake hose 18, brake pipe main pipe 19, and combined dust collector 21, providing a pressure control signal to the 120 control valve 22.

[0028] Furthermore, based on pressure changes within control valve 120, pressure is output to the acceleration and relief air cylinder 23, auxiliary air cylinder 25, and pressure-limiting valve 42. The pressure-limiting valve 42 outputs pressure to the pressure-reducing air cylinder 43, which then adjusts the pressure through the sensing valve and the empty and loaded vehicle suppression disc assembly 45, outputting the adjusted brake pressure to the brake cylinder 39. When pressure builds up within the brake cylinder 39, it pushes the internal piston, extending its push rod. This pressure is then applied or released to the wheels 35 via the mechanical transmission structure, including the front brake push rod 34, front brake lever 38, brake beam 36, front brake push rod 37, rear brake lever 29, rear brake pull rod 30, brake regulator 31, and brake lever 33, completing the simulated vehicle braking and relief operation.

[0029] Furthermore, the system power supply 8 supplies power to the control computer 9 of the training platform, the brake pipe fast charging solenoid valve 11, the brake pipe slow charging solenoid valve 12, the brake sensitivity exhaust solenoid valve 13, the common brake exhaust solenoid valve 14, the emergency exhaust solenoid valve 15, the brake stability solenoid valve 16, the fast exhaust solenoid valve 17, the brake pipe sensor 20, the acceleration relief air cylinder sensor 24, the auxiliary air cylinder sensor 26, the first brake shoe pressure sensor 27, the second brake shoe pressure sensor 28, the third brake shoe pressure sensor 32, the fourth brake shoe pressure sensor 34, the brake cylinder push rod stroke sensor 40, the brake cylinder sensor 41, the pressure reduction air cylinder sensor 44, and the large display screen 46 for teaching.

[0030] Furthermore, the brake pipe sensor 20, the acceleration relief air cylinder sensor 24, the auxiliary air cylinder sensor 26, the first brake shoe pressure sensor 27, the second brake shoe pressure sensor 28, the third brake shoe pressure sensor 32, the fourth brake shoe pressure sensor 34, the brake cylinder push rod stroke sensor 40, the brake cylinder sensor 41, and the pressure reduction air cylinder sensor 44 feed back the converted voltage and current signals to the control computer 9, which are collected and converted and then processed by the application program and displayed on the operating touch screen 7 and the large display screen 46 for teaching.

[0031] The utility model's workflow is as follows: First, a computer control system issues relief air filling, brake exhaust, and pressure maintenance control commands to the railway vehicle brake system piping system, adjusting the pressure in the brake piping system via a solenoid valve. When system pressure changes, a control valve triggers a corresponding internal brake relief action based on the pressure signal. The internal action of the control valve distributes pressure to the brake-related piping system, driving the brake cylinder stroke and providing feedback to the acquisition system. After the brake cylinder stroke changes, the brake lever and brake regulator work together to drive the brake shoe into contact with the wheel, applying braking friction and providing feedback to the acquisition system. The empty and loaded vehicle adjustment device, based on the interaction of the sensing valve, pressure-limiting valve, and damper disc, distributes the adjusted brake pressure to the pressure-reducing air cylinder and brake cylinder, and feeds it back to the acquisition system. Finally, the acquisition system combines the collected data with simulated motion status on a teaching animation and large screen. This creates a visual experience that combines the physical motion of components with simulated data.

[0032] The above only describes in detail the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in this field, various changes can be made without departing from the purpose of the present invention, and various changes should be included in the scope of protection of the present invention.

Claims

1. A railway freight car braking simulation training platform for vocational education, characterized by: The invention comprises a main air supply valve (1), an air storage cylinder (2), an air storage cylinder sensor (3), a pressure regulating valve (4), a brake main air inlet pipe (5), a computer control system, a brake air supply and ventilation pipe system, and an empty and loaded vehicle adjustment device. The main air supply valve (1) is connected to the air storage cylinder (2), an air storage cylinder sensor (3) is installed on the air storage cylinder (2), the air storage cylinder (2) is connected to the brake air supply and ventilation pipe system through the brake main air inlet pipe (5), the air storage cylinder sensor (3) is electrically connected to the computer control system, the brake air supply and ventilation pipe system is connected to the empty and loaded vehicle adjustment device, the empty and loaded vehicle adjustment device is electrically connected to the computer control system, and the computer control system is electrically connected to a large display screen (46) for teaching.

2. The railway freight vehicle braking simulation training platform for vocational education according to claim 1 is characterized by: The computer control system includes an operation console (6), an operation touch screen (7), a system power supply (8), and a control computer (9). The operation console (6) is electrically connected to the system power supply (8). The control computer (9) is electrically connected to the operation console (6). The operation console (6) is electrically connected to the operation touch screen (7). The control computer (9) is electrically connected to a large display screen (46) for teaching. The large display screen (46) for teaching is electrically connected to the system power supply (8).

3. The railway freight vehicle braking simulation training platform for vocational education according to claim 1 is characterized by: The brake air supply and ventilation pipe system comprises an electromagnetic reversing valve seat (10), a brake pipe fast charging solenoid valve (11), a brake pipe slow charging solenoid valve (12), a brake sensitivity exhaust solenoid valve (13), a common brake exhaust solenoid valve (14), an emergency exhaust solenoid valve (15), a brake stability solenoid valve (16), a rapid exhaust solenoid valve (17), and a brake hose (18). One end of the electromagnetic reversing valve seat (10) is connected to an empty and loaded vehicle adjustment device through a brake hose (18), and the other end of the electromagnetic reversing valve seat (10) is connected to a brake main air inlet pipe (5). The electromagnetic reversing valve seat (10) is sequentially provided with a brake pipe fast charging solenoid valve (11), a brake pipe slow charging solenoid valve (12), a brake sensitivity exhaust solenoid valve (13), a common brake exhaust solenoid valve (14), an emergency exhaust solenoid valve (15), a brake stability solenoid valve (16), and a rapid exhaust solenoid valve (17).

4. The railway freight vehicle braking simulation training platform for vocational education according to claim 1 is characterized in that: The empty and loaded vehicle adjustment device includes a brake pipe main (19), a brake pipe sensor (20), a combined dust collector (21), a 120 control valve (22), an acceleration relief air cylinder (23), an acceleration relief air cylinder sensor (24), an auxiliary air cylinder (25), an auxiliary air cylinder sensor (26), a first brake shoe pressure sensor (27), a second brake shoe pressure sensor (28), a rear brake lever (29), a brake rear pull rod (30), a brake adjuster (31), a third brake shoe pressure sensor (32), a brake lever (33), a fourth brake shoe pressure sensor (34), a wheel (35), a brake beam ( 36), a front brake push rod (37), a front brake lever (38), a brake cylinder (39), a brake cylinder push rod stroke sensor (40), a brake cylinder sensor (41), a pressure limiting valve (42), a pressure reducing air cylinder (43), a pressure reducing air cylinder sensor (44), a sensing valve and an empty and loaded vehicle suppression disc assembly (45), the brake pipe main pipe (19) is connected to the brake hose (18), the brake pipe main pipe (19) is connected to the combined dust collector (21), the brake pipe sensor (20) is installed on the brake pipe main pipe (19), and the combined dust collector (21) is connected to the combined dust collector (21).

5. The railway freight vehicle braking simulation training platform for vocational education according to claim 4 is characterized in that: The combined vacuum cleaner (21) is respectively connected to an acceleration relief air cylinder (23), an auxiliary air cylinder (25) and a pressure limiting valve (42); an acceleration relief air cylinder sensor (24) is installed on the acceleration relief air cylinder (23); and an auxiliary air cylinder sensor (26) is installed on the auxiliary air cylinder (25).

6. The railway freight vehicle braking simulation training platform for vocational education according to claim 4, characterized in that: Wheels (35) are respectively installed at both ends of the rear brake lever (29), and the two wheels (35) of the rear brake lever (29) are respectively installed with a first brake shoe pressure sensor (27) and a second brake shoe pressure sensor (28). The rear brake pull rod (30) is connected to the rear brake lever (29), and the rear brake pull rod (30) is connected to a brake regulator (31).

7. The railway freight vehicle braking simulation training platform for vocational education according to claim 4, characterized in that: Wheels (35) are respectively installed at both ends of the brake lever (33), and the two wheels (35) of the brake lever (33) are respectively installed with a third brake shoe pressure sensor (32) and a fourth brake shoe pressure sensor (34). The brake lever (33) is connected to a brake beam (36), and the brake beam (36) is connected to a front brake push rod (37). The front brake push rod (37) is connected to a front brake lever (38), and the front brake lever (38) is connected to a brake regulator (31).

8. The railway freight vehicle braking simulation training platform for vocational education according to claim 7, characterized in that: The front brake lever (38) is connected to a brake cylinder (39), a brake cylinder push rod stroke sensor (40) is installed on the front brake lever (38), a brake cylinder sensor (41) is installed on the brake cylinder (39), the brake cylinder (39) is respectively connected to a pressure limiting valve (42) and a sensing valve and empty and loaded vehicle suppression disc assembly (45), the sensing valve and empty and loaded vehicle suppression disc assembly (45) are connected to the pressure limiting valve (42) through a pressure reducing air cylinder (43), and a pressure reducing air cylinder sensor (44) is installed on the pressure reducing air cylinder (43).

9. The railway freight vehicle braking simulation training platform for vocational education according to claim 2, characterized in that: The system power supply (8) is electrically connected to a brake pipe fast charge solenoid valve (11), a brake pipe slow charge solenoid valve (12), a brake sensitivity exhaust solenoid valve (13), a normal brake exhaust solenoid valve (14), an emergency exhaust solenoid valve (15), a brake stability solenoid valve (16), a fast exhaust solenoid valve (17), a brake pipe sensor (20), an acceleration relief air cylinder sensor (24), an auxiliary air cylinder sensor (26), a first brake shoe pressure sensor (27), a second brake shoe pressure sensor (28), a third brake shoe pressure sensor (32), a fourth brake shoe pressure sensor (34), a brake cylinder push rod stroke sensor (40), a brake cylinder sensor (41), and a pressure reduction air cylinder sensor (44).

10. The railway freight vehicle braking simulation training platform for vocational education according to claim 2, characterized in that: The control computer (9) is electrically connected to a brake pipe sensor (20), an acceleration relief air cylinder sensor (24), an auxiliary air cylinder sensor (26), a first brake shoe pressure sensor (27), a second brake shoe pressure sensor (28), a third brake shoe pressure sensor (32), a fourth brake shoe pressure sensor (34), a brake cylinder push rod stroke sensor (40), a brake cylinder sensor (41), and a pressure reduction air cylinder sensor (44).

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