CN115532697A - Surface cleaning device for railway vehicle brake valve - Google Patents

Abstract

The invention provides a surface cleaning device for a brake valve of a railway vehicle, which relates to the technical field of brake valves. The device includes a shell and a controller. The shell is divided into a loading and unloading area, a cleaning room and a water circulation room. An air-drying mechanism is connected to the loading and unloading area. A cleaning platform is set under the air-drying mechanism, and the end of the cleaning platform extends into the cleaning room. , the cleaning chamber is connected with a cleaning mechanism, and the cleaning chamber communicates with the water circulation chamber. The controller is electrically connected with the air-drying mechanism, the cleaning platform and the cleaning mechanism respectively. The device has a high degree of automation, and the cleaning process is fully automated, realizing automatic cleaning and air-drying of the brake valve. It can quickly and efficiently clean and remove dirt such as floating rust and semi-shedding paint on the surface of the brake valve, and effectively improve cleaning efficiency.

Description

Surface cleaning device for railway vehicle brake valve

technical field

The invention relates to the technical field of brake valves, in particular to a surface cleaning device for a brake valve of a railway vehicle.

Background technique

The brake valve is a key component in the braking device of railway freight cars, which is very important for the safety of railway freight cars. The brake valve is affected by wear and external environment during use, and the surface is prone to floating rust, oil and other pollutants, which need to be cleaned in time. However, the types of brake valves used by railway freight cars are different, the structure is complex and the shape is irregular, and the valve body itself has many holes, which makes cleaning difficult. If the cleaning is not clean, if the solid dirt enters the blind hole of the brake valve during the subsequent decomposition work, it will easily block the brake air passage, cause brake and release failure, and cause a great safety hazard to the operation of railway wagons.

At present, the cleaning of the brake valve mainly uses high-pressure water jets to perform through-type spray cleaning on the outer surface of the brake valve and the pipe fittings. During the cleaning process, the sewage generated after cleaning is not treated and reused, resulting in a lot of waste of water resources. And after cleaning, a small amount of water still remains on the surface of the brake valve, which is not convenient for the next step of maintenance and installation of the brake valve, and cannot guarantee the cleanliness of the work site.

Contents of the invention

In view of this, the object of the present invention is to provide a surface cleaning device for a railway vehicle brake valve to solve the above problems.

Based on the above purpose, the present invention provides a surface cleaning device for railway vehicle brake valves, comprising: a housing and a controller; the housing is divided into a loading and unloading area, a cleaning room and a water circulation room, and an air-drying mechanism is connected in the loading and unloading area. A cleaning platform is arranged below the air-drying mechanism, and the end of the cleaning platform extends into the cleaning chamber, which is connected with a cleaning mechanism, and the cleaning chamber communicates with the water circulation chamber; the controller is electrically connected with the air-drying mechanism, the cleaning platform, and the cleaning mechanism respectively.

Compared with prior art, the beneficial effect of the present invention is:

1. The device is equipped with a water circulation chamber, which is used to treat the sewage generated during the cleaning process, realize the secondary utilization of sewage, and save water resources.

2. The device is equipped with an air-drying mechanism, which is used for air-drying the brake valve after cleaning, so as to facilitate the next step of maintenance of the brake valve.

3. The device has a high degree of automation, and the cleaning process is fully automated, realizing automatic cleaning and air drying of the brake valve. It can quickly and efficiently clean and remove dirt such as floating rust and semi-shedding paint on the surface of the brake valve, effectively improving cleaning efficiency.

Further, the cleaning mechanism includes a first cleaning unit, a second cleaning unit and a third cleaning unit; the first cleaning unit includes a first rotary motor, a first linear module, a first electric cylinder and a first composite cavitation nozzle, The output end of the first rotating motor is connected to the first linear module, the first linear module is connected to the inner wall of the cleaning chamber, the sliding end of the first linear module is connected to the first electric cylinder, and the first electric The output end of the cylinder is connected to the first composite cavitation nozzle; the second cleaning unit includes a second rotary motor, a cantilever connector, a second linear module and a second composite cavitation nozzle, and the second rotary motor and the second linear module connection, the second linear module is connected to the inner wall of the cleaning chamber, the sliding end of the second linear module is connected to the end of the cantilever connector, and the second composite cavitation nozzle is connected to the cantilever connector; the third cleaning unit includes The second electric cylinder and the third composite cavitation nozzle, the second electric cylinder is connected to the inner wall of the cleaning chamber, and the output end of the second electric cylinder is connected to the third composite cavitation nozzle. Clean the brake valve in all directions through the cleaning mechanism to ensure that the dirt on the brake valve is cleaned.

Further, the water circulation chamber includes a basket filter, a sewage tank, a clean water tank and a high-pressure water pump. The bottom of the cleaning chamber is provided with a cleaning chamber drain, the cleaning chamber drain is connected to the basket filter water inlet, and the basket filter outlet is connected to the The water inlet of the sewage tank is connected, the water outlet of the sewage tank is connected with the water inlet of the clean water tank, the water outlet of the clean water tank is connected with the water inlet of the high-pressure water pump, and the water outlet of the high-pressure water pump is respectively connected with the first composite cavitation nozzle, the second composite cavitation nozzle, and the third composite cavitation nozzle. Compound cavitation nozzle connection. The sewage is filtered twice through the basket filter and the sewage tank, and the filtered clean water is re-transmitted to the composite cavitation nozzle for cleaning the brake valve, realizing the recycling of water and saving water resources.

Further, the loading and unloading area includes a sliding door, a display screen, a partition and a laser beam sensor; the outer wall of the loading and unloading area is provided with a loading and unloading port, and a sliding door is installed on the loading and unloading port, and the outer wall of the loading and unloading area on one side of the sliding door A display screen is installed on the top, and the display screen is electrically connected to the controller; the partition is installed vertically between the loading and unloading area and the cleaning area; the two inner walls of the loading and unloading area are respectively connected with opposite laser sensors. The radiation sensor is electrically connected to the controller. The model size of the brake valve is detected by the laser through-shot sensor, which is convenient for subsequent adjustment of the height of the composite cavitation nozzle.

Further, the cleaning platform includes a third rotary motor, a first reducer, a mounting plate, a central rotary support, an optical axis, an optical axis connection, a second reducer, a fourth rotary motor, a rotary tray support, and a rotary tray; The output end of the third rotating motor is connected to the input end of the first reducer, the output end of the first reducer is connected to the central rotating support through the mounting plate, and the side of the mounting plate is connected to the partition; the two ends of the central rotating support are respectively connected There is an optical shaft, the end of the optical shaft is connected with the optical shaft connector, the second reducer is installed in the optical shaft connector, the input end of the second reducer is connected with the output end of the fourth rotating motor, and the output end of the second reducer It is connected with the rotating tray support, the rotating tray supporting is located above the optical axis connecting piece, the rotating tray is connected with the rotating tray, and the rotating tray is a hollow structure. A rotatable hollow structure rotary tray is set on the cleaning platform, which cooperates with the cleaning mechanism during the cleaning process, so as to realize all-round flushing of the brake valve.

Further, the partition includes an upper fixed partition, a middle movable partition and a lower fixed partition, the upper fixed partition is connected to the inner top surface of the loading and unloading area, and the lower fixed partition is connected to the inner bottom surface of the loading and unloading area. Rodless cylinders are respectively connected to the two inner side walls of the zone, and the output end of the rodless cylinder is connected to the middle movable partition, and the middle movable partition is arranged between the upper fixed partition and the lower fixed partition. The movable partition in the middle can be raised and lowered, thereby ensuring that the cleaning platform can be rotated, so that the positions of the two rotating trays can be exchanged.

Further, rectangular gaps are respectively opened at both ends of the lower fixed partition, and a brush curtain is connected to the bottom of the middle movable partition facing the rectangular gap. When the cleaning platform rotates, the fourth rotating motor can pass through the rectangular gap, so as to avoid the obstruction of the rotation of the cleaning platform by the fixed partition below; when the middle moving partition descends, the rectangular gap is blocked by the brush curtain to prevent the jet flow Splashes from the cleaning chamber.

Further, the air-drying mechanism includes a standard air cylinder, an air knife holder and an air knife, the standard air cylinder is connected to the top surface in the loading and unloading area, the output end of the standard air cylinder is connected to the air knife holder, and the air knife holder is connected to the air knife. The air knife is connected with an external air compressor to air dry the cleaned brake valve.

Further, it also includes a float switch and a relay, the float switch is connected to the inner wall of the cleaning chamber, and the float switch is electrically connected to the relay. When the water level in the cleaning room rises to the specified height, the float switch will be closed, and the relay will send out an alarm, thereby preventing the accumulated water from damaging the electrical components in the cleaning room.

Description of drawings

Figure 1 is a schematic diagram of the structure of the brake valve;

2 is a schematic diagram of a surface cleaning device for a brake valve of a railway vehicle provided by an embodiment of the present invention;

3 is a schematic diagram of the internal structure of a surface cleaning device for a railway vehicle brake valve provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of the loading and unloading area of the railway vehicle brake valve surface cleaning device provided by the embodiment of the present invention;

5 is a schematic diagram of a cleaning platform of a surface cleaning device for a railway vehicle brake valve provided by an embodiment of the present invention;

Fig. 6 is a schematic diagram of placement of the brake valve of the railway vehicle brake valve surface cleaning device provided by the embodiment of the present invention;

7 is a schematic diagram of an air knife of a surface cleaning device for a brake valve of a railway vehicle provided by an embodiment of the present invention;

8 is a schematic diagram of a cleaning chamber of a surface cleaning device for a railway vehicle brake valve provided by an embodiment of the present invention;

Fig. 9 is a schematic diagram of the first cleaning unit of the railway vehicle brake valve surface cleaning device provided by the embodiment of the present invention;

Fig. 10 is a schematic diagram of the second cleaning unit of the railway vehicle brake valve surface cleaning device provided by the embodiment of the present invention;

Fig. 11 is a schematic diagram of the third cleaning unit of the railway vehicle brake valve surface cleaning device provided by the embodiment of the present invention;

Fig. 12 is a side view of the water circulation chamber of the railway vehicle brake valve surface cleaning device provided by the embodiment of the present invention;

Fig. 13 is a front view of the water circulation chamber of the railway vehicle brake valve surface cleaning device provided by the embodiment of the present invention.

The marks in the figure are: 1. Shell; 2. Loading and unloading area; 3. Electric control room; 4. Water circulation room; 5. Cleaning room; 6. Display screen; 7. Sliding door; 8. Upper fixed partition; 9 1. Moving partition in the middle; 10. Fixed partition below; 11. Laser beam sensor; 12. Rodless cylinder; 13. Standard cylinder; 14. Air knife fixture; 15. Air knife; 16. Basket filter; 17. Sewage tank; 18. Clean water tank; 19. Quick adapter; 20. Sewage pump; 21. High-pressure water pump; 22. Float switch; 23. Brush curtain; 24. The first rotating motor; 25. The first straight Line module; 26. The first electric cylinder; 27. The first composite cavitation nozzle; 28. The second rotating motor; 29. Cantilever connector; 30. The second linear module; 31. Nozzle connector; 32. The second 2. Composite cavitation nozzle; 33. Second electric cylinder; 34. Third composite cavitation nozzle; 35. Rotary tray; 36. Rotary tray support; 37. Universal plug seal; 38. Optical axis connector; Protective cover; 40, optical axis; 41, central rotating support; 42, central rotating seal; 43, third rotating motor; 44, first reducer; 45, first mounting plate; 46, second mounting plate; 47. Square pipe; 48. Reinforcing rib; 49. Water pipe; 50. The fourth rotating motor; 51. Brake valve; 52. Water level gauge.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific examples.

As shown in FIG. 1 , the brake valve 51 has a complex structure and irregular shape, and the valve body itself has many holes, which are difficult to clean. In view of this, as shown in FIG. 2 , the present invention proposes a surface cleaning device for a brake valve of a railway vehicle, which is composed of a housing 1 and the like. The housing 1 is a box structure, and the housing 1 is divided into a loading and unloading area 2 , an electric control room 3 , a water circulation room 4 and a cleaning room 5 .

The electric control room 3 is used for installing electrical control components. The electric control room 3 is provided with controllers and relays, as well as air circuit breakers, switching power supplies, A/D conversion modules, etc., to ensure the normal operation of the circuit.

As shown in FIG. 3 , the loading and unloading area 2 is arranged adjacent to the cleaning chamber 5 , and both the loading and unloading area 2 and the cleaning chamber 5 are arranged on the upper part of the housing 1 . As shown in FIG. 4 , the loading and unloading area 2 is composed of a sliding door 7 , a display screen 6 , a partition, a rodless cylinder 12 , and a laser beam sensor 11 . The outer wall of the loading and unloading area 2 is provided with a loading and unloading opening, and the loading and unloading opening is arranged at a position opposite to the cleaning platform, and a sliding door 7 is installed on the loading and unloading opening. After the staff opens the sliding door 7, they can perform loading or unloading operations. Display screen 6 is fixedly installed on the outer wall of loading and unloading area 2 on one side of sliding door 7, and display screen 6 is electrically connected with controller, and controller adopts PLC controller.

The partition is vertically arranged to separate the loading and unloading area 2 and the cleaning chamber 5. The partition is composed of a fixed partition 8 above, a movable partition 9 in the middle and a fixed partition 10 below. The top of the upper fixed partition 8 is fixedly connected with the inner top surface of the loading and unloading area 2, and the side end of the upper fixed partition 8 is fixedly connected with the inner wall of the loading and unloading area 2. The bottom of the lower fixed partition 10 is fixedly connected to the inner bottom surface of the loading and unloading area 2 , and the side end of the lower fixed partition 10 is fixedly connected to the inner wall of the loading and unloading area 2 . The two inner walls of the loading and unloading area 2 are respectively fixedly connected with a rodless cylinder 12, the rodless cylinder 12 is electrically connected with the controller, the output end of the rodless cylinder 12 is fixedly connected with the middle movable partition 9, and the middle movable partition 9 is set Between the upper fixed partition 8 and the lower fixed partition 10, driven by the rodless cylinder 12, the middle movable partition 9 can move up and down.

The lower fixed partition 10 includes two layers of boards arranged side by side, and the cleaning platform is installed in the middle of the lower fixed partition 10 . As shown in Figures 5 and 6, the cleaning platform consists of a third rotating motor 43, a first reducer 44, a mounting plate, a central rotating support 41, an optical axis 40, an optical axis connector 38, a second reducer, a fourth The rotating motor 50 , the rotating tray support 36 and the rotating tray 35 are composed of the third rotating motor 43 and the fourth rotating motor 50 which are respectively electrically connected to the controller. The output end of the third rotating electrical machine 43 is connected to the input end of the first reducer 44 , and the third rotating electrical machine 43 is fixedly connected to the first reducer 44 by screws. The mounting plate is made up of the first mounting plate 45, the second mounting plate 46 and the square pipe 47. The first speed reducer 44 is fixedly connected with the first mounting plate 45 by bolts, and the two ends of the upper surface of the first mounting plate 45 are respectively fixedly connected with The square pipe 47 is fixedly connected with the second mounting plate 46 on the square pipe 47, and the square pipe 47 is respectively connected with the first mounting plate 45 and the second mounting plate 46 by bolts to bear the weight of the upper component. The third rotating electrical machine 43, the first reducer 44 and the mounting plate are all located inside the lower fixed partition 10, and the mounting plate is fixedly connected to the inner wall of the lower fixed partition 10, and the shape of the lower fixed partition 10 is compatible with the cleaning platform , to ensure the stable connection and normal operation of the cleaning platform. The central rotating support 41 is located on the second mounting plate 46 , the output end of the first reducer 44 passes through the first mounting plate 45 and the second mounting plate 46 sequentially, and is connected with the central rotating supporting 41 through a flat key. The second mounting plate 46 is fitted with a central rotary seal 42 to prevent the jet from splashing to the connection between the output end of the first reducer 44 and the central rotary support 41 , thereby affecting the transmission.

The two sides of the central rotating support 41 are respectively connected with the optical shaft 40 through a flat key, and the connection between the central rotating support 41 and the optical shaft 40 is fixedly connected with a reinforcing rib 48, which is used to enhance the strength and rigidity of the optical shaft 40, so that it can withstand larger loads. The end of the optical axis 40 is connected with an optical axis connector 38, and a second speed reducer is fixed inside the optical axis connector 38. The bottom of the second speed reducer is fixedly connected with a fourth rotating motor 50 by screws. The fourth rotating motor The output terminal of 50 is connected with the input terminal of the second speed reducer. The fourth rotating electrical machine 50 is covered with a motor protective cover 39 , and the motor protective cover 39 is connected to the optical axis connector 38 to prevent jet splashing from causing harm to the fourth rotating electrical machine 50 . A rotary tray support 36 is arranged above the optical axis connector 38, and the rotary tray support 36 is connected to the output end of the second reducer. The rotary tray support 36 is covered with a pan seal 37 to prevent the jet from splashing on the rotary tray support 36 The connection with the output end of the second reduction motor affects the transmission. A rotating tray 35 is fixedly connected to the rotating tray support member 36, and the rotating tray 35 is a hollow structure.

The top of the lower fixed partition 10 is provided with two symmetrically arranged rectangular gaps, and the bottom of the middle movable partition 9 is connected with a brush curtain 23 arranged opposite to the rectangular gap. When the middle movable partition 9 descends, the brush curtain 23 Can be moved exactly into the rectangular gap. By opening a rectangular notch, when the cleaning platform rotates, the fourth rotating motor 50 can pass through the rectangular notch, thereby preventing the lower fixed partition 10 from hindering the rotation of the cleaning platform. After the intermediate moving partition 9 descends, the rectangular gap is blocked by the brush curtain 23 to prevent the jet from splashing out of the cleaning chamber 5 .

The two inner sidewalls of the loading and unloading area 2 are respectively connected with laser through-shooting sensors 11, and the relative position between the laser through-shooting sensors 11 and the rotary tray 35 is adjusted so that the laser through-shooting sensors 11 can control each of the parts on the rotary tray 35 respectively. The type and size of the movable valve 51 are detected, and the laser beam is electrically connected to the sensor 11 and the controller. In this embodiment, there are three pairs of laser through-beam sensors 11 .

The air-drying mechanism consists of a standard cylinder 13, an air knife fixture 14 and an air knife 15. The standard cylinder 13 is electrically connected to the controller. The standard cylinder 13 is connected to the top surface of the loading and unloading area 2. The output end of the standard cylinder 13 is fixed to the air knife Part 14 is connected, as shown in Figure 7, is connected with air knife 15 on the air knife fixing part 14, and air knife 15 is positioned at the rotating platform top. The air knife 15 is connected with an air compressor through an air pipeline, and the air compressor is arranged outside the casing 1 . Therefore, air can be sprayed to the cleaned brake valve 51 through the air knife 15 to air dry the brake valve 51 .

As shown in FIG. 8 , a cleaning mechanism and a float switch 22 are arranged in the cleaning chamber 5 , and the cleaning mechanism is composed of a first cleaning unit, a second cleaning unit and a third cleaning unit. As shown in Figure 9, the first cleaning unit is composed of a first rotary motor 24, a first linear module 25, a first electric cylinder 26 and a first compound cavitation nozzle 27, and the first rotary motor 24 and the first electric cylinder 26 are respectively electrically connected to the controller. The first linear module 25 is vertically fixedly connected on the inner sidewall of the cleaning chamber 5, the first rotary motor 24 is fixedly connected to the top of the first linear module 25, and the output end of the first rotary motor 24 is connected to the first The linear module 25 is connected, the sliding end of the first linear module 25 is fixedly connected with the first electric cylinder 26, the output end of the first electric cylinder 26 is fixedly connected with the first composite cavitation nozzle 27 through a flange, and the first composite The water outlet of the cavitation nozzle 27 is set downward.

As shown in Figure 10, the second cleaning unit is made up of the second rotary motor 28, the cantilever connector 29, the second linear module 30, the nozzle connector 31 and the second composite cavitation nozzle 32, the second rotary motor 28 is connected with the control electrical connection. The second linear module 30 is vertically fixedly connected on the inner sidewall of the cleaning chamber 5, the second rotary motor 28 is fixedly connected to the top of the second linear module 30, and the output end of the second rotary motor 28 is connected to the second linear module 30 connection, the output end of the second linear module 30 is fixedly connected to the end of the cantilever connector 29 , the cantilever connector 29 is connected to a nozzle connector 31 , and the nozzle connector 31 is connected to a second composite cavitation nozzle 32 . In this embodiment, there are two second composite cavitation nozzles 32 , and the water outlets of the second composite cavitation nozzles 32 are arranged obliquely downward.

As shown in FIG. 11 , the third cleaning unit is composed of a second electric cylinder 33 and a third composite cavitation nozzle 34 , and the second electric cylinder 33 is electrically connected to the controller. The second electric cylinder 33 is horizontally arranged, and the end of the second electric cylinder 33 is fixedly connected on the inner wall of the cleaning chamber 5, and the output end of the second electric cylinder 33 is connected with the third composite cavitation nozzle 34 through a flange, and the third The water outlet of the composite cavitation nozzle 34 is arranged upward. Using composite cavitation nozzles, compared with traditional high-pressure water jets, cavitation water jets have stronger cleaning ability, lower energy consumption, and higher jet pulse intensity of the nozzles. Under the same pressure conditions, the erosion, cleaning ability and effective target distance of the new nozzle jet are significantly better than ordinary high-pressure water jets.

Float switch 22 adopts stainless steel duckbill float switch 22, and stainless steel duckbill float switch 22 is fixedly connected in the bottom by bolt and fixes dividing plate 10 towards the side of cleaning chamber 5, and float switch 22 is electrically connected with relay. If the drain outlet of the cleaning chamber 5 or the basket filter 16 are blocked, the water level in the cleaning chamber 5 will rise. When the water level rose to a specified height, the stainless steel duckbill float switch 22 was closed, and the relay connected to it would sound an alarm, thereby preventing the accumulation of water from causing damage to electrical components such as rotating motors in the cleaning chamber 5 .

Both the water circulation chamber 4 and the electric control chamber 3 are arranged at the lower part of the casing 1 . As shown in Figures 12 and 13, the water circulation chamber 4 is made up of a basket filter 16, a sewage tank 17, a clean water tank 18 and a high-pressure water pump 21, and the bottom of the cleaning chamber 5 is provided with a cleaning chamber 5 drain, and the cleaning chamber 5 drain is connected to the The water inlet of the basket filter 16 is connected, and the water outlet of the basket filter 16 is connected with the water inlet of the sewage tank 17. The sewage tank 17 is provided with multiple layers of hydrophilic oil-absorbing cotton for further filtering the water flowing into the sewage tank 17 . The dirty water tank 17 is arranged above the clean water tank 18, the water outlet of the dirty water tank 17 is connected to the water inlet of the clean water tank 18, a water level gauge 52 is installed on the clean water tank 18, and the water outlet of the clean water tank 18 passes through the water pipe 49 and the quick adapter 19 and the high-pressure water pump 21 connect. The high-pressure water pump 21 extracts the clear water in the clear water tank 18, connects with each composite cavitation nozzle through the water pipe 49, and extracts the clear water for cleaning.

Working process: step 1, open the sliding door 7, and the rotary tray 35 in the loading and unloading area 2 is located in the middle position at this time. Four brake valves 51 are evenly placed on the rotary tray 35 in the loading and unloading area 2 manually. The base of the brake valves 51 sits on the rotary tray 35, and the four brake valves 51 form a circle. During the placing process, the fourth rotating motor 50 is controlled to drive the rotating tray 35 to rotate, and cooperate with the manual anti-brake valve 51 .

Step 2. The fourth rotating motor 50 drives the drive tray to rotate, and the four brake valves 51 pass through the laser position of the laser through-beam sensor 11 in sequence, and the models and sizes of the four brake valves 51 are respectively detected by the laser through-beam sensor 11 .

Step 3. The rodless cylinders 12 on both sides drive the middle movable partition 9 to rise, the third rotating motor 43 drives the central rotating support 41 to rotate 180°, and rotate the rotating tray 35 on which the brake valve 51 to be cleaned is placed to the cleaning room within 5. The rodless cylinder 12 drives the intermediate movable partition 9 to descend, separates the cleaning chamber 5 from the loading and unloading area 2, and prepares for cleaning. At the same time, the brake valve 51 is manually placed on the rotating tray 35 at the other end, and the placement and detection steps are carried out according to step 1 and step 2.

Step 4: Adjust the height of the first composite cavitation nozzle according to the measured model and size of the brake valve 51 . The first rotary motor 24 drives the output end of the first linear module 25 to move, and then drives the first electric cylinder 26 and the first composite cavitation nozzle to move up and down, and adjusts the height of the first composite cavitation nozzle to an appropriate position before stopping move.

During the cleaning process, the first electric cylinder 26 expands and contracts, drives the first compound cavitation nozzle to reciprocate, and flushes the upper surface of the brake valve 51 . The second rotating motor 28 drives the sliding end of the second linear module 30 to move, thereby driving the cantilever connector 29 and the second composite cavitation nozzle to move up and down, and flush the inner and outer ring surfaces of the brake valve 51 . The second electric cylinder 33 drives the third composite cavitation nozzle to reciprocate. Since the rotating tray 35 is a hollow structure, the third composite cavitation nozzle can flush the bottom of the brake valve 51 under the rotary tray 35 . At the same time, during the flushing process, the rotary tray 35 performs reciprocating rotation within 0° to 90°, thereby realizing comprehensive cleaning of the brake valve 51 .

After the cleaning of one brake valve 51 is completed, the rotating tray 35 rotates 90°, so that the next brake valve 51 is transferred to the corresponding position of the nozzle of the compound cavitation nozzle, and the next brake valve 51 is cleaned. The four brake valves 51 are cleaned separately.

Step 5: After the brake valves 51 on the rotary tray 35 in the cleaning chamber 5 are all cleaned, the rodless cylinder 12 drives the middle movable partition 9 to rise. The fourth rotating motor 50 rotates 180°, the positions of the two rotating trays 35 are exchanged, the rotating tray 35 with the brake valve 51 that has been cleaned is returned to the loading and unloading area 2, and the rotating tray 35 of the brake valve 51 to be cleaned is placed. The tray 35 enters into the cleaning chamber 5, and the rodless cylinder 12 drives the intermediate movable partition 9 to descend. The air knife 15 works to air-dry the brake valve 51 that has been cleaned. At the same time, the brake valve 51 to be cleaned is cleaned in the cleaning chamber 5 .

Step 6: After the air-drying is completed, the material is manually unloaded, and other brake valves 51 to be cleaned are placed again.

For the sewage produced in the cleaning process, it flows into the basket filter 16 through the outlet of the cleaning chamber 5 for the first filtration. Then flow into the sewage tank 17 by the basket filter 16, and filter for the second time through the multi-layer hydrophilic oil-absorbing cotton in the sewage tank 17. The filtered clean water flows into the clean water tank 18, and the water in the clean water tank 18 is pumped out by the high-pressure water pump 21, and delivered to each composite cavitation nozzle to realize water circulation. After the water is used for a period of time, the clean water tank 18 and the sewage pump 20 are connected together by the quick adapter 19, the water in the clean water tank 18 is extracted, and then clean water is injected into the clean water tank 18 for replacement.

Embodiments of the present invention are intended to embrace all such alterations, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent replacements, improvements, etc. within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. A railway car brake valve surface cleaning apparatus comprising: a housing and a controller; it is characterized in that the preparation method is characterized in that,

the shell is internally divided into a feeding and discharging area, a cleaning chamber and a water circulation chamber, wherein the feeding and discharging area is internally connected with an air drying mechanism, a cleaning platform is arranged below the air drying mechanism, the end part of the cleaning platform extends into the cleaning chamber, the cleaning chamber is internally connected with a cleaning mechanism, and the cleaning chamber is communicated with the water circulation chamber; the controller is respectively electrically connected with the air drying mechanism, the cleaning platform and the cleaning mechanism.

2. The railway vehicle brake valve surface cleaning apparatus as claimed in claim 1, wherein the cleaning mechanism comprises a first cleaning unit, a second cleaning unit and a third cleaning unit;

the first cleaning unit comprises a first rotating motor, a first linear module, a first electric cylinder and a first composite cavitation nozzle, the output end of the first rotating motor is connected with the first linear module, the first linear module is connected to the inner side wall of the cleaning chamber, the sliding end of the first linear module is connected with the first electric cylinder, and the output end of the first electric cylinder is connected with the first composite cavitation nozzle;

the second cleaning unit comprises a second rotating motor, a cantilever connecting piece, a second linear module and a second composite cavitation nozzle, the second rotating motor is connected with the second linear module, the second linear module is connected to the inner side wall of the cleaning chamber, the sliding end of the second linear module is connected with the end part of the cantilever connecting piece, and the cantilever connecting piece is connected with the second composite cavitation nozzle;

the third cleaning unit comprises a second electric cylinder and a third composite cavitation nozzle, the second electric cylinder is connected to the inner side wall of the cleaning chamber, and the output end of the second electric cylinder is connected with the third composite cavitation nozzle.

3. The railway vehicle brake valve surface cleaning device as claimed in claim 2, wherein the water circulation chamber comprises a basket filter, a sewage tank, a clean water tank and a high pressure water pump, a cleaning chamber water outlet is formed in the bottom of the cleaning chamber and connected with the basket filter water inlet, a basket filter water outlet is connected with the sewage tank water inlet, a sewage tank water outlet is connected with the clean water tank water inlet, a clean water tank water outlet is connected with the high pressure water pump water inlet, and the high pressure water pump water outlet is respectively connected with the first compound cavitation nozzle, the second compound cavitation nozzle and the third compound cavitation nozzle.

4. The railway vehicle brake valve surface cleaning device of claim 1, wherein the feeding and discharging area comprises a sliding door, a display screen, a partition plate and a laser correlation sensor; an upper material discharging port and a lower material discharging port are formed in the outer wall of the upper material discharging area, a sliding door is installed on the upper material discharging port and the lower material discharging port, a display screen is installed on the outer wall of the upper material discharging area on one side of the sliding door, and the display screen is electrically connected with the controller; the partition plate is vertically arranged between the feeding and discharging area and the cleaning area; the two inner side walls of the feeding and discharging area are respectively connected with oppositely arranged laser correlation sensors which are electrically connected with the controller.

5. The railway car brake valve surface cleaning apparatus as claimed in claim 4, wherein the cleaning platform comprises a third rotating electrical machine, a first decelerator, a mounting plate, a central rotating support member, an optical axis connecting member, a second decelerator, a fourth rotating electrical machine, a rotating tray support member, and a rotating tray; the output end of the third rotating motor is connected with the input end of the first speed reducer, the output end of the first speed reducer penetrates through the mounting plate to be connected with the central rotating support piece, and the side edge of the mounting plate is connected with the partition plate; the both ends of the central rotary supporting piece are respectively connected with an optical axis, the end part of the optical axis is connected with an optical axis connecting piece, a second speed reducer is arranged in the optical axis connecting piece in a penetrating mode, the input end of the second speed reducer is connected with the output end of a fourth rotary motor, the output end of the second speed reducer is connected with a rotary tray supporting piece, the rotary tray supporting piece is located above the optical axis connecting piece, a rotary tray is connected onto the rotary tray supporting piece, and the rotary tray is of a hollow structure.

6. The surface cleaning device for the brake valve of the railway vehicle as claimed in claim 4, wherein the partition comprises an upper fixed partition, a middle movable partition and a lower fixed partition, the upper fixed partition is connected with the inner top surface of the feeding and discharging area, the lower fixed partition is connected with the inner bottom surface of the feeding and discharging area, two inner side walls of the feeding and discharging area are respectively connected with rodless cylinders, the output ends of the rodless cylinders are connected with the middle movable partition, and the middle movable partition is arranged between the upper fixed partition and the lower fixed partition.

7. The device for cleaning the surface of the brake valve of the railway vehicle as claimed in claim 6, wherein rectangular notches are respectively formed at two ends of the lower fixed partition plate, and a brush curtain is connected to the bottom of the middle movable partition plate at a position opposite to the rectangular notches.

8. The apparatus for cleaning a surface of a brake valve of a railway vehicle as claimed in claim 1, wherein the air drying mechanism comprises a standard cylinder, an air knife fixing member and an air knife, the standard cylinder is connected to an inner top surface of the loading and unloading area, an output end of the standard cylinder is connected to the air knife fixing member, and the air knife is connected to the air knife fixing member.

9. The railway vehicle brake valve surface cleaning device according to claim 1, further comprising a float switch and a relay, wherein the float switch is connected to an inner side wall of the cleaning chamber, and the float switch is electrically connected to the relay.

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