Railway wagon brake cylinder cleaning machine control system

Abstract

The utility model discloses a control system of a cleaning machine for a brake cylinder of a railway wagon. The control system comprises a high-pressure cleaning station I, a washing and drying station and a control unit, the high-pressure cleaning station I comprises a water pump unit and a cleaning tank; the water pump unit provides a water source; the interior of the cleaning tank is used for containing a brake cylinder to be cleaned, and the cleaning tank is connected with the water pump unit through a pipeline and conducts high-pressure spraying cleaning on the brake cylinder. The washing and drying station comprises a high-pressure cleaning station II and a drying unit, and the structure of the high-pressure cleaning station II is the same as that of the high-pressure cleaning station I; the drying unit is mounted in the high-pressure cleaning station II and is used for drying the brake cylinder subjected to high-pressure spraying and washing; the control unit is connected with the high-pressure cleaning station I and the washing and drying station and used for starting or stopping executing mechanisms in the high-pressure cleaning station I and the washing and drying station. The automatic cleaning and drying device can effectively remove stains on the surfaces of the brake cylinder body and accessories of the railway freight car, and automatic cleaning operation and drying operation of the brake cylinder of the railway freight car are achieved.

Description

Technical Field

[0001] The utility model relates to the cleaning of a brake cylinder of a railway freight car, in particular to a control system of a brake cylinder cleaning machine of a railway freight car. Background Art

[0002] The brake cylinder of a railway freight car is a core component of the railway vehicle braking system and plays an important role in ensuring the safe operation of the vehicle. During vehicle factory repairs, the "Rules for Inspection and Maintenance of Railway Freight Car Brake Devices" stipulate that after the brake cylinder is disassembled, the inner wall of the cylinder, the piston and other parts must be cleaned and wiped clean. At present, the cleaning of vehicle brake cylinders is mainly done manually with a rag, which is labor-intensive. In addition, since the surface stains of the brake cylinder body and its accessories are 89D grease, it is difficult to wipe clean some irregular surfaces. Summary of the invention

[0003] In order to solve the above problems, the utility model provides a railway freight vehicle brake cylinder cleaning machine control system, which can effectively remove stains on the surface of the railway freight vehicle brake cylinder body and accessories, and realize automatic cleaning and drying operations of the railway freight vehicle brake cylinder.

[0004] The utility model is implemented according to the following technical solutions:

[0005] The utility model provides a control system for a brake cylinder cleaning machine for railway freight vehicles, comprising a high-pressure cleaning station I, a flushing and drying station and a control unit; the high-pressure cleaning station I comprises a water pump unit and a cleaning tank; the water pump unit is used to provide a water source; the interior of the cleaning tank is used to place a brake cylinder to be cleaned, the cleaning tank is connected to the water pump unit through a pipeline, and the brake cylinder is cleaned by high-pressure spraying; the flushing and drying station and the high-pressure cleaning station I operate independently, the flushing and drying station comprises a high-pressure cleaning station II and a drying unit, and the structure of the high-pressure cleaning station II is the same as that of the high-pressure cleaning station I; the drying unit is installed in the high-pressure cleaning station II, and the brake cylinder is dried after being flushed by high-pressure spraying; the control unit is connected to the high-pressure cleaning station I and the flushing and drying station, and is used to start or stop the actuators in the two.

[0006] In some embodiments, the water pump unit comprises:

[0007] A liquid storage tank for containing liquid (cleaning agent solution);

[0008] A cleaning pump installed above the liquid storage tank is used as an actuator of the control unit, connected to the main controller of the control unit through the output system of the control unit, and inputs the liquid in the liquid storage tank into the cleaning tank;

[0009] An oil-water separation pump installed above the liquid storage tank is used as an actuator of the control unit, is connected to the main controller of the control unit through the output system of the control unit, and is used to separate oil and water from the liquid in the liquid storage tank;

[0010] The temperature measurement and water level detection system is installed inside the liquid storage tank and is used to detect the liquid temperature and liquid height.

[0011] In some embodiments, the temperature measurement and water level detection system includes:

[0012] A temperature sensor, used as an input system of the control unit, connected to a main controller of the control unit;

[0013] A heater, used as an actuator of the control unit, connected to a main controller of the control unit;

[0014] The liquid level switch is used as an input system of the control unit and is connected to the main controller of the control unit.

[0015] In some embodiments, the cleaning tank comprises:

[0016] A box body and an upper cover, wherein the upper cover is connected to the top opening surface of the box body through a hinge;

[0017] A cleaning material frame is installed in the box and is used to place the brake cylinder body and parts;

[0018] The upper cover automatic opening system is installed between the box body and the upper cover and is used to control the opening and closing of the upper cover.

[0019] In some embodiments, the upper cover automatic opening system includes:

[0020] A cylinder, one end of which is hinged to the upper cover, and the other end of which is hinged to the box body;

[0021] A cylinder control solenoid valve, used as an actuator of the control unit, connected to a main controller of the control unit through an output system of the control unit;

[0022] The door magnetic switch installed at the bottom of the cylinder is used as the input system of the control unit, connected to the main controller of the control unit, and transmits the information of detecting whether the upper cover is opened to the main controller.

[0023] In some embodiments, the cleaning tank further comprises:

[0024] The rotary reduction motor installed inside the box body is used as the actuator of the control unit and is connected to the main controller of the control unit through the output system of the control unit. The cleaning material frame is connected to the rotary reduction motor through a transmission mechanism and can rotate during the cleaning process to achieve all-round cleaning of the brake cylinder.

[0025] In some embodiments, the cleaning tank further comprises:

[0026] A plurality of high-pressure nozzles are respectively installed on the inner wall, the bottom and the inner wall of the upper cover of the box body, and the high-pressure nozzles are connected to the water pump unit through pipelines.

[0027] In some embodiments, the drying unit comprises:

[0028] A blower disposed below the cleaning tank is used as an actuator of the control unit and is connected to a main controller of the control unit through an output system of the control unit;

[0029] The air knife is arranged inside the upper cover of the cleaning tank, and the blower and the air knife are connected through a pipeline.

[0030] In some embodiments, the control unit comprises:

[0031] The main controller has the function of processing data;

[0032] An input system connected to the main controller mainly consists of a plurality of buttons and sensors in the high-pressure cleaning station I and the rinsing and drying station;

[0033] An output system connected to the main controller is mainly composed of various types of relays;

[0034] The actuator connected to the output system is mainly composed of the motor and pump in the high-pressure cleaning station I and the washing and drying station;

[0035] A touch screen connected to the main controller, used to transmit the input action instructions to the main controller and display the working status of the actuators of each cleaning station;

[0036] The power conversion unit is connected to the main controller and is used to convert the external power into a power matching the control unit.

[0037] In some embodiments, the high-pressure cleaning station I, the rinsing and drying station and the control unit are placed on the same bottom frame.

[0038] Beneficial effects of the utility model:

[0039] The utility model discloses a brake cylinder cleaning machine control system which adopts a PLC module to control the cleaning machine to complete the automatic cleaning and drying process of the brake cylinder of a railway freight car, thereby saving time, improving work efficiency and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0041] In the attached picture:

[0042] Figure 1 This is a schematic diagram of the external structure of the control system of the railway freight car brake cylinder cleaning machine of the utility model;

[0043] Figure 2 This is the electrical connection block diagram of the control system of the railway freight car brake cylinder cleaning machine of the utility model;

[0044] Figure 3 The utility model discloses a cleaning process flow of a control system of a railway freight car brake cylinder cleaning machine.

[0045] Figure ID:

[0046] 1—High-pressure cleaning station I, 2—Rinsing and drying station, 3—Control unit;

[0047] 101 - box body, 102 - upper cover, 103 - cylinder, 104 - door magnetic switch, 105 - cylinder control solenoid valve, 106 - cleaning material frame, 107 - rotary reduction motor, 108 - high pressure nozzle, 109 - liquid storage tank, 110 - liquid level switch, 111 - heater, 112 - temperature sensor, 113 - cleaning pump, 114 - oil-water separation pump;

[0048] 215—blower, 216—air knife;

[0049] 301—power conversion unit, 302—main controller, 303—input system, 304—output system, 305—actuator, 306—touch screen, 3041—contactor and thermal relay, 3042—intermediate relay.

[0050] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0052] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] like Figure 1 , Figure 2 , Figure 3 As shown, a control system for a brake cylinder cleaning machine for a railway freight car comprises a high-pressure cleaning station Ⅰ1, a flushing and drying station 2 and a control unit 3; the high-pressure cleaning station Ⅰ1 comprises a water pump unit and a cleaning tank; the water pump unit is used to provide a water source; the interior of the cleaning tank is used to place the brake cylinder to be cleaned, the cleaning tank is connected to the water pump unit through a pipeline, and the brake cylinder is cleaned by high-pressure spraying; the flushing and drying station 2 and the high-pressure cleaning station Ⅰ1 operate independently without interfering with each other, the flushing and drying station 2 comprises a high-pressure cleaning station Ⅱ and a drying unit, and the structure of the high-pressure cleaning station Ⅱ is the same as that of the high-pressure cleaning station Ⅰ1; the drying unit is installed in the high-pressure cleaning station Ⅱ to dry the brake cylinder after high-pressure spraying flushing; the control unit 3 is connected to the high-pressure cleaning station Ⅰ1 and the flushing and drying station 2, and is used to start or stop the actuators in the two.

[0055] The above-mentioned water pump unit is further described below.

[0056] Continue to refer to Figure 1 , Figure 2As shown, the water pump unit includes a liquid storage tank 109, a cleaning pump 113, an oil-water separation pump 114 and a temperature measurement and water level detection system; the liquid storage tank 109 is used to hold liquid (cleaning agent solution); the cleaning pump 113 is installed above the liquid storage tank 109, and the cleaning pump 113 is used to serve as an actuator 305 of the control unit 3, and is connected to the main controller 302 of the control unit 3 through the output system 304 of the control unit 3, so as to input the liquid in the liquid storage tank 109 into the cleaning tank; the oil-water separation pump 114 is installed above the liquid storage tank 109, and the oil-water separation pump 114 is used to serve as an actuator 305 of the control unit 3, and is connected to the main controller 302 of the control unit 3 through the output system 304 of the control unit 3, so as to separate the oil and water in the liquid in the liquid storage tank 109; the temperature measurement and water level detection system is installed inside the liquid storage tank 109, and is used to detect the liquid temperature and liquid height.

[0057] In a further solution, the temperature measurement and water level detection system includes a temperature sensor 112, a heater 111 and a liquid level switch 110; the temperature sensor 112 is used as an input system 303 of the control unit 3, connected to the main controller 302 of the control unit 3, and is used to transmit the detected temperature to the main controller 302 in real time; the heater 111 is used as an actuator 305 of the control unit 3, connected to the main controller 302 of the control unit 3; the liquid level switch 110 is used as an input system 303 of the control unit 3, connected to the main controller 302 of the control unit 3, and is used to transmit the detected liquid level to the main controller 302 in real time.

[0058] The above-mentioned cleaning tank is further described below.

[0059] Continue to refer to Figure 1 , Figure 2 As shown, the cleaning tank includes a box body 101, an upper cover 102, a cleaning material frame 106 and an automatic opening system for the upper cover; the upper cover 102 is connected to the top opening surface of the box body 101 through a hinge; the cleaning material frame 106 is installed in the box body 101 for placing the brake cylinder body and parts; the automatic opening system for the upper cover is installed between the box body 101 and the upper cover 102 for controlling the opening and closing of the upper cover 102.

[0060] A further solution is that the automatic opening system of the upper cover includes a cylinder 103, a cylinder control solenoid valve 105 and a door magnetic switch 104; one end of the cylinder 103 is hinged to the upper cover 102, and the other end is hinged to the box body 101; the cylinder control solenoid valve 105 is used as an actuator 305 of the control unit 3, and is connected to the main controller 302 of the control unit 3 through the output system 304 of the control unit 3; the door magnetic switch 104 is installed at the bottom of the cylinder 103, and the door magnetic switch 104 is used as an input system 303 of the control unit 3, and is connected to the main controller 302 of the control unit 3, and transmits the information of detecting whether the upper cover 102 is opened to the main controller 302.

[0061] In a further solution, the cleaning tank also includes a rotary reduction motor 107 installed inside the box body 101, and the rotary reduction motor 107 is used as an actuator 305 of the control unit 3, and is connected to the main controller 302 of the control unit 3 through the output system 304 of the control unit 3. The cleaning material frame 106 is connected to the rotary reduction motor 107 through a transmission mechanism, and can rotate during the cleaning process to achieve all-round cleaning of the brake cylinder.

[0062] In a further solution, the cleaning tank further comprises a plurality of high-pressure nozzles 108, which are respectively mounted on the inner wall, the bottom and the inner wall of the upper cover 102 of the box body 101, and the high-pressure nozzles 108 are connected to the water pump unit through pipelines.

[0063] The above-mentioned drying unit is further described below.

[0064] Continue to refer to Figure 1 , Figure 2 As shown, the drying unit includes a blower 215 and an air knife 216; the blower 215 is placed under the cleaning tank, and the blower 215 is used as an actuator 305 of the control unit 3, and is connected to the main controller 302 of the control unit 3 through the output system 304 of the control unit 3; the air knife 216 is arranged inside the upper cover 102 of the cleaning tank, and the blower 215 and the air knife 216 are connected by a pipeline.

[0065] The above control unit is further described below.

[0066] Continue to refer to Figure 2As shown, the control unit 3 includes a main controller 302, an input system 303 connected to the main controller 302, an output system 303 connected to the main controller 302, an actuator 305 connected to the output system 304, a touch screen 306 and a power conversion unit 301; the main controller 302 has the function of processing data; the input system 303 is mainly composed of the door magnetic switch 104, the liquid level switch 110, the temperature sensor 112 and the button in the high-pressure cleaning station Ⅰ1 and the washing and drying station 2; the output system 304 is mainly composed of the contactor, The main controller 302 is composed of a thermal relay 3041 and an intermediate relay 3042; the actuator 305 is mainly composed of a rotary reduction motor 107, a cleaning pump 113, an oil-water separation pump 114, a heater 111, a blower 215 and a cylinder control solenoid valve 105 in the high-pressure cleaning station Ⅰ1 and the rinsing and drying station 2; the touch screen 306 is connected to the main controller 302 for transmitting the input action instructions to the main controller 302; the power conversion unit 301 is connected to the main controller 302 for converting the external power supply into a power supply matching the control unit 3.

[0067] In the preferred solution, the main controller 302 adopts a PLC (its model is s7-200SAMRT ST30 with expansion modules DT08 and AE04), the touch screen 306 adopts a Kunlun Tongtai 10-inch screen, model 1031KT, and the touch screen 306 communicates with the main controller 302 via an Ethernet port. The power conversion unit 301 adopts a Mean Well switching power supply, model EDR-120-24, which supplies power to the PLC, the touch screen 306, the input system 303, and the output system 304.

[0068] For further solutions, please refer to Figure 1 As shown, the high-pressure cleaning station Ⅰ1, the rinsing and drying station 2 and the control unit 3 are placed on the same bottom frame.

[0069] The following is a description of the cleaning process of the brake cylinder by the above-mentioned railway freight vehicle brake cylinder cleaning machine control system.

[0070] Continue to refer to Figure 1 , Figure 2 , Figure 3 As shown in the figure, the working process of the control system of the railway freight car brake cylinder cleaning machine is as follows:

[0071] (1) A worker places the brake cylinder and its accessories inside the cleaning material frame 106 of the high-pressure cleaning station Ⅰ1 through the loading device, and starts automatic cleaning through the touch screen 306.

[0072] (2) The corresponding port of the cleaning machine control system outputs a signal, the cylinder control solenoid valve 105 in the high-pressure cleaning station Ⅰ1 is closed, the piston rod of the cylinder 103 is retracted, the upper cover 102 is closed, and the door magnetic switch 104 in the high-pressure cleaning station Ⅰ1 is actuated and transmits the signal to the PLC (main controller 302). The PLC outputs the forward rotation of the rotary reduction motor 107 in the high-pressure cleaning station Ⅰ1, and the start signal of the cleaning pump 113 and the oil-water separation pump 114 through the output port. The cleaning material frame 106 starts to rotate, the cleaning pump 113 and the oil-water separation pump 114 start working, and the controller starts timing at the same time.

[0073] (3) When the cleaning time is up, the PLC controls the forward rotation of the rotary reduction motor 107 in the high-pressure cleaning station Ⅰ1 through the output port, and stops the cleaning pump 113 and the oil-water separation pump 114. The cleaning material frame 106 stops rotating, and the cleaning pump 113 and the oil-water separation pump 114 stop working. After waiting for 10 seconds, the upper cover 102 in the high-pressure cleaning station Ⅰ1 is opened.

[0074] (4) The worker places the brake cylinder and its accessories into the cleaning material frame of the washing and drying station 2 through the transfer device, and starts automatic washing and drying through the touch screen 306.

[0075] (5) The corresponding port of the cleaning machine control system outputs a signal, the cylinder control solenoid valve in the rinsing and drying station 3 is closed, the cylinder piston rod is retracted, the upper cover is closed, the door magnetic switch in the rinsing and drying station 3 is actuated and the signal is transmitted to the PLC. The PLC outputs the forward rotation of the rotary reduction motor in the rinsing and drying station, and the start signal of the rinsing pump and the oil-water separation pump through the output port. The cleaning material frame starts to rotate, the rinsing pump and the oil-water separation pump start working, and the controller starts timing at the same time.

[0076] (6) When the flushing time is up, the PLC controls the flushing pump and the oil-water separation pump in the flushing and drying station 3 to stop signal through the output port. The flushing pump and the oil-water separation pump stop working. After waiting for 10 seconds, the PLC controls the blower 215 in the flushing and drying station 3 to start signal through the output port. The blower 215 starts working and the controller starts timing at the same time.

[0077] (7) When the drying time is up, the PLC controls the forward rotation of the rotary reduction motor in the washing and drying station 3 and the stop signal of the blower 215 through the output port, the cleaning material frame stops rotating, the blower 215 stops working, and waits for 10 seconds before the upper cover in the washing and drying station 3 is opened.

[0078] In summary, the control system of the brake cylinder cleaning machine of the utility model adopts a PLC module to control the cleaning machine to complete the automatic cleaning and drying process of the brake cylinder of a railway freight car, which can save time, improve work efficiency, and reduce labor costs.

[0079] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

[0080] In addition, those skilled in the art will understand that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments also means being within the scope of protection of the present utility model and forming different embodiments. For example, in the above embodiments, those skilled in the art can use them in combination according to the known technical solutions and the technical problems to be solved by the present application.

[0081] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A railway freight car brake cylinder cleaning machine control system, characterized in that: include: High pressure cleaning station I, including: A water pump unit for providing a water source; A cleaning tank, in which the brake cylinder to be cleaned is placed, the cleaning tank is connected to the water pump unit through a pipeline, and the brake cylinder is cleaned by high-pressure spraying; The washing and drying station operates independently from the high-pressure cleaning station I, and includes: High-pressure cleaning station II, whose structure is the same as that of the high-pressure cleaning station I; A drying unit, installed in the high-pressure cleaning station II, dries the brake cylinder after high-pressure spray washing; The control unit is connected to the high-pressure cleaning station I and the rinsing and drying station, and is used to start or stop the actuators in the two stations.

2. A railway freight car brake cylinder cleaning machine control system according to claim 1, characterized in that: The water pump unit comprises: A liquid storage tank, used for containing liquid; A cleaning pump installed above the liquid storage tank is used as an actuator of the control unit, connected to the main controller of the control unit through the output system of the control unit, and inputs the liquid in the liquid storage tank into the cleaning tank; An oil-water separation pump installed above the liquid storage tank is used as an actuator of the control unit, is connected to the main controller of the control unit through the output system of the control unit, and is used to separate oil and water from the liquid in the liquid storage tank; The temperature measurement and water level detection system is installed inside the liquid storage tank and is used to detect the liquid temperature and liquid height.

3. A railway freight car brake cylinder cleaning machine control system according to claim 2, characterized in that: The temperature measurement and water level detection system comprises: A temperature sensor, used as an input system of the control unit, connected to a main controller of the control unit; A heater, used as an actuator of the control unit, connected to a main controller of the control unit; The liquid level switch is used as an input system of the control unit and is connected to the main controller of the control unit.

4. A railway freight car brake cylinder cleaning machine control system according to claim 1, characterized in that: The cleaning tank comprises: A box body and an upper cover, wherein the upper cover is connected to the top opening surface of the box body through a hinge; A cleaning material frame is installed in the box and is used to place the brake cylinder body and parts; The upper cover automatic opening system is installed between the box body and the upper cover and is used to control the opening and closing of the upper cover.

5. A railway freight car brake cylinder cleaning machine control system according to claim 4, characterized in that: The upper cover automatic opening system comprises: A cylinder, one end of which is hinged to the upper cover, and the other end of which is hinged to the box body; A cylinder control solenoid valve, used as an actuator of the control unit, connected to a main controller of the control unit through an output system of the control unit; The door magnetic switch installed at the bottom of the cylinder is used as the input system of the control unit, connected to the main controller of the control unit, and transmits the information of detecting whether the upper cover is opened to the main controller.

6. A railway freight car brake cylinder cleaning machine control system according to claim 4, characterized in that: The cleaning tank also includes: The rotary reduction motor installed inside the box body is used as the actuator of the control unit and is connected to the main controller of the control unit through the output system of the control unit. The cleaning material frame is connected to the rotary reduction motor through a transmission mechanism and can rotate during the cleaning process to achieve all-round cleaning of the brake cylinder.

7. A railway freight car brake cylinder cleaning machine control system according to claim 4, characterized in that: The cleaning tank also includes: A plurality of high-pressure nozzles are respectively installed on the inner wall, the bottom and the inner wall of the upper cover of the box body, and the high-pressure nozzles are connected to the water pump unit through pipelines.

8. A railway freight car brake cylinder cleaning machine control system according to claim 1, characterized in that: The drying unit comprises: A blower disposed below the cleaning tank is used as an actuator of the control unit and is connected to a main controller of the control unit through an output system of the control unit; The air knife is arranged inside the upper cover of the cleaning tank, and the blower and the air knife are connected through a pipeline.

9. A railway freight car brake cylinder cleaning machine control system according to claim 1, characterized in that: The control unit comprises: The main controller has the function of processing data; An input system connected to the main controller mainly consists of a plurality of buttons and sensors in the high-pressure cleaning station I and the rinsing and drying station; An output system connected to the main controller is mainly composed of various types of relays; The actuator connected to the output system is mainly composed of the motor and pump in the high-pressure cleaning station I and the washing and drying station; A touch screen connected to the main controller, used to transmit the input action instructions to the main controller and display the working status of the actuators of each cleaning station; The power conversion unit is connected to the main controller and is used to convert the external power into a power matching the control unit.

10. A railway freight car brake cylinder cleaning machine control system according to claim 1, characterized in that: The high-pressure cleaning station I, the rinsing and drying station and the control unit are placed on the same bottom frame.

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