A vehicle chassis, a rail vehicle, and an icebreaking method

Abstract

The embodiments of the present application provide a vehicle chassis, a rail vehicle, and an ice-breaking method, belonging to the field of ice-breaking technology. The vehicle chassis includes a vehicle frame and an ice-breaking assembly. The ice-breaking assembly includes a liquid ice-breaking device and a liquid pump. The liquid ice-breaking device is connected to the bottom of the vehicle frame. The liquid ice-breaking device has a liquid inlet and a liquid outlet. The liquid pump is mounted on the vehicle frame. The output end of the liquid pump is connected to the liquid inlet of the liquid ice-breaking device. The liquid pump is used to pump liquid into the liquid ice-breaking device so that the liquid outlet sprays liquid to break the ice. The vehicle chassis, rail vehicle, and ice-breaking method of the embodiments of the present application include a liquid ice-breaking device for spraying liquid. Liquid is pumped into the liquid ice-breaking device by the liquid pump, and the liquid is sprayed from the liquid outlet of the liquid ice-breaking device. Ice breaking is mainly achieved by the pressure of the liquid, without the need to heat the liquid, reducing heat exchange with the surrounding environment, reducing power loss, and thus reducing the power required for track ice breaking.

Description

Technical Field

[0001] The present application relates to the field of icebreaking technology, and in particular to a vehicle chassis, a rail vehicle, and an icebreaking method. Background Art

[0002] When rail vehicles travel on the corresponding tracks, in cold weather, the track surface may be frozen, which is not conducive to the rail vehicles running on the tracks. It is necessary to break the ice on the tracks to remove the ice as much as possible. In the related art, the power of breaking the ice on the tracks is relatively high. Summary of the Invention

[0003] In view of this, embodiments of the present application hope to provide a vehicle chassis, a rail vehicle, and an ice-breaking method to reduce the power required to break ice on the rails.

[0004] To achieve the above objectives, a first aspect of an embodiment of the present application provides a vehicle chassis, comprising:

[0005] Frame;

[0006] The ice-breaking assembly includes a liquid ice-breaking device and a liquid feeding pump. The liquid ice-breaking device is connected to the bottom of the vehicle frame. The liquid ice-breaking device has a liquid inlet and a liquid outlet. The liquid feeding pump is installed on the vehicle frame. The output end of the liquid feeding pump is connected to the liquid inlet of the liquid ice-breaking device. The liquid feeding pump is used to pump liquid to the liquid ice-breaking device so that the liquid outlet sprays liquid to break ice.

[0007] In one embodiment, the pressure of the liquid sprayed from the liquid outlet is 20 MPa to 50 MPa.

[0008] In one embodiment, the number of the liquid outlets is 1 to 7, and / or the diameter of each liquid outlet is 0.1 mm to 0.6 mm.

[0009] In one embodiment, the liquid ice breaking device includes:

[0010] a first mounting frame connected to the lower side of the vehicle frame;

[0011] an ice breaker connected to the first mounting frame, the liquid inlet and the liquid outlet being formed on the ice breaker;

[0012] The first cleaning device is connected to the first mounting frame, and the first cleaning device is used to clean floating snow above the ice surface.

[0013] In one embodiment, the first cleaning device comprises:

[0014] a snow shovel connected to the first mounting bracket;

[0015] A roller sweeper is connected to the first mounting frame, and the roller sweeper is located between the snow shovel and the ice breaker along the moving direction of the frame.

[0016] In one embodiment, the liquid ice-breaking device is provided on both opposite sides of the frame along a preset direction, the preset direction is arranged crosswise with the moving direction of the frame, the area between the liquid ice-breaking devices on both sides is the target area, and the snow shoveling direction of the snow shovel, the sweeping direction of the roller and the spraying direction of the liquid outlet are all inclined toward the target area.

[0017] In one embodiment, the vehicle chassis further includes a second cleaning device, which is connected to the bottom of the vehicle frame and is located on a side of the ice breaker away from the first cleaning device along the moving direction of the chassis.

[0018] In one embodiment, the vehicle chassis further comprises:

[0019] A blowing system with an air outlet;

[0020] The spray system comprises a spray port, wherein the air outlet is at least partially located between the spray port and the liquid outlet along the moving direction of the frame, and the spray port is used for spraying antifreeze liquid.

[0021] In one embodiment, the liquid ice-breaking device is provided on both sides of the air outlet along the moving direction of the frame, the air outlet is correspondingly provided between the spray port and the liquid outlet on each side, the spray port and the liquid ice-breaking device are provided on opposite sides of the frame along a preset direction, and the preset direction is arranged crosswise with the moving direction of the frame. The blowing system includes:

[0022] a second mounting bracket connected to the bottom of the vehicle frame, wherein the second mounting bracket is provided on opposite sides of the vehicle frame along a preset direction;

[0023] an air outlet device connected to the corresponding second mounting bracket, the air outlet being formed on the air outlet device, the air outlet device being provided on opposite sides of the frame along the preset direction, the number of the air outlet devices being two on each side, and the spray port on each side being located between the two air outlet devices on each side along the moving direction of the frame;

[0024] a first air duct, corresponding one-to-one to the air outlet device, one end of the first air duct being connected to the corresponding air outlet device;

[0025] a regulating valve corresponding one-to-one to each of the first air ducts, the regulating valve being connected to the other end of the corresponding first air duct, the regulating valve comprising a valve body for conveying airflow and an actuator for opening and closing the valve body, wherein two regulating valves arranged in a preset direction have the two valve bodies located between the two actuators;

[0026] Two second air ducts are provided, the two second air ducts are arranged in a preset direction, and the second air ducts are connected to a side of the regulating valve that is away from the first air duct;

[0027] An elbow, one end of each second air duct facing away from the regulating valve is connected to the elbow, and the second air duct is sleeved on the outside of the elbow;

[0028] a bellows located below the elbow, the elbow being connected to the bellows, the bellows and the regulating valve being arranged along the moving direction of the frame, and the bellows being located between the second mounting frames on both sides;

[0029] two third air ducts arranged along the preset direction, one end of each third air duct connected to the regulating valve, and the other end of each third air duct connected to a side of the bellows facing the regulating valve;

[0030] a fourth air duct, one end of which is connected to one side of the air box along the preset direction;

[0031] A fan is connected to the other end of the fourth air duct, the fan is connected to the bottom of the frame, and the fan is located at one end of the second mounting frame away from the air outlet device.

[0032] In one embodiment, the ice-breaking assembly further includes a liquid storage tank, and the input end of the liquid delivery pump is connected to the liquid storage tank.

[0033] A second aspect of an embodiment of the present application provides a rail vehicle, comprising:

[0034] Chassis of any of the above vehicles;

[0035] The vehicle body is installed on the vehicle chassis.

[0036] A third aspect of an embodiment of the present application provides an ice-breaking method, which is applied to any of the above-mentioned rail vehicles. The ice-breaking method includes: spraying liquid onto the track below the rail vehicle through the liquid outlet of the liquid ice-breaking device to break ice attached to the track.

[0037] In one embodiment, the pressure of the liquid sprayed from the liquid outlet is 20 MPa to 50 MPa.

[0038] The vehicle chassis of the embodiment of the present application, since the ice-breaking assembly includes a liquid ice-breaking device for spraying liquid, liquid is pumped into the liquid ice-breaking device by a liquid pump, and the liquid is sprayed out from the liquid outlet of the liquid ice-breaking device. The liquid is sprayed onto the track through the liquid outlet mainly by utilizing the pressure of the liquid to break the ice, without the need to heat the liquid, thus reducing heat exchange with the surrounding environment, reducing power loss, and thus reducing the power required to break ice on the track. The vehicle chassis of the embodiment of the present application can break ice attached to the track under relatively low power conditions. On the other hand, since there is no need to heat the ice attached to the track, there is no need to set up a high-power heater, so that the overall volume of the ice-breaking assembly is relatively small, which can reduce the space occupied by the ice-breaking assembly and is conducive to the arrangement of the ice-breaking assembly in a limited space. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A schematic structural diagram of a rail vehicle according to an embodiment of the present application;

[0040] Figure 2 for Figure 1 Magnified view at position A;

[0041] Figure 3 This is a schematic structural diagram of a liquid ice-breaking device according to an embodiment of the present application;

[0042] Figure 4 for Figure 3 Magnified view at position B in the middle;

[0043] Figure 5 This is a schematic structural diagram of the vehicle chassis according to an embodiment of the present application, illustrating the positional relationship between the liquid ice-breaking device, the second cleaning device, the blowing system, and the spraying system and the frame outline;

[0044] Figure 6 for Figure 5 Magnified view at position C in the middle;

[0045] Figure 7 This is a schematic structural diagram of a second cleaning device according to an embodiment of the present application;

[0046] Figure 8 This is an assembly diagram of the second mounting bracket, air outlet device, and sprinkler system according to an embodiment of the present application;

[0047] Figure 9 This is an assembly diagram of the blowing system and the spraying system of an embodiment of the present application;

[0048] Figure 10 for Figure 9 Magnified view at position D;

[0049] Figure 11 This is a simplified schematic diagram of a rail vehicle on track according to an embodiment of the present application.

[0050] Explanation of the reference numerals: vehicle frame 1; ice-breaking assembly 2; liquid ice-breaking device 21; liquid outlet 211; first mounting bracket 212; ice breaker 213; first cleaning device 214; snow plow 2141; roller sweeper 2142; target area 22; second cleaning device 3; third mounting bracket 31; motor 32; disc sweeper 33; blowing system 4; air outlet 41; second mounting bracket 42; air outlet device 43; first air duct 44; regulating valve 45; valve body 451; actuator 452; second air duct 46; second target port 461; elbow 47; bellows 48; top surface 481; third air duct 49; first target port 491; fourth air duct 40; fan 401; spray system 5; spray port 51; wheel 6; grooved track 100; groove wall 101; groove 102; track surface 103. DETAILED DESCRIPTION

[0051] It should be noted that, unless there is a conflict, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of this application and should not be regarded as an improper restriction on this application.

[0052] In the description of the embodiments of the present application, "upper", "lower", "top", "bottom", orientation or position relationship is based on the attached Figure 1 Regarding the orientation or positional relationship shown, it should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0053] As part of the creative concept of this application, before describing the embodiments of this application, it is necessary to analyze the reasons why the power required for ice breaking on the track in related technologies is relatively high, and obtain the technical solutions of the embodiments of this application through reasonable analysis.

[0054] In related art, ice on the track is heated to melt or loosen the ice attached to the track, thereby achieving track de-icing. However, when ice forms on the track and the weather is relatively cold, during the process of heating the track ice, due to the high temperature of the heat source used to heat the ice, the heat source exchanges heat with the cold environment around the track, causing a large amount of heat from the heat source to be dissipated into the surrounding environment, resulting in significant heat loss. The heat source for heating the ice layer needs to provide not only the heat required to heat the ice layer but also the heat required to exchange heat with the cold surrounding environment. Therefore, the heat source needs to be equipped with a high-power heater to meet the heating requirements of track de-icing, and the power required to perform the de-icing process is relatively high.

[0055] In view of this, the present application provides a rail vehicle, see Figure 1, a rail vehicle comprises a vehicle chassis and a vehicle body. The vehicle body is installed on the vehicle chassis.

[0056] The vehicle chassis of the embodiment of this application is shown in Figures 1 to 4 The vehicle chassis includes a frame 1 and an ice-breaking assembly 2. The ice-breaking assembly 2 includes a liquid ice-breaking device 21 and a liquid pump. The liquid ice-breaking device 21 is connected to the bottom of the frame 1. The liquid ice-breaking device 21 has a liquid inlet and a liquid outlet 211. The liquid pump is mounted on the frame 1, and the output end of the liquid pump is connected to the liquid inlet of the liquid ice-breaking device 21. The liquid pump is used to pump liquid into the liquid ice-breaking device 21 so that the liquid outlet 211 sprays liquid to break the ice. In this structural form, since the ice-breaking assembly 2 includes a liquid ice-breaking device 21 for spraying liquid, the liquid is pumped into the liquid ice-breaking device 21 by the liquid pump, and the liquid is sprayed from the liquid outlet 211 of the liquid ice-breaking device 21. The liquid sprayed onto the track through the liquid outlet 211 mainly utilizes the pressure of the liquid to break the ice, without the need to heat the liquid, reducing heat exchange with the surrounding environment, reducing power loss, and thus reducing the power required to break the ice on the track. The vehicle chassis of the embodiment of the present application can break ice attached to the track under low power conditions. On the other hand, since there is no need to heat the ice on the track, there is no need to set up a high-power heater, so the overall volume of the ice-breaking assembly 2 is smaller, which can reduce the space occupied by the ice-breaking assembly 2 and is conducive to arranging the ice-breaking assembly 2 in a limited space.

[0057] It is understandable that the wall thickness of the track below the rail vehicle is relatively thick and can withstand the liquid sprayed from the liquid outlet 211 of the ice breaking assembly 2 .

[0058] In one embodiment, the pressure of the liquid ejected from the liquid outlet 211 is 20 MPa to 50 MPa. Thus, the liquid ejected from the liquid outlet 211 of the liquid ice breaking device 21 can effectively break ice and cause less wear on the rail.

[0059] It is understandable that the wall thickness of the track under the rail vehicle is about 20 mm or more, and the liquid pressure of 20 MPa to 50 MPa ejected from the liquid outlet 211 of the liquid ice breaking device 21 will hardly cause damage to the track under the rail vehicle.

[0060] In one embodiment, the number of the liquid outlets 211 is 1 to 7, and / or the diameter of each liquid outlet 211 is 0.1 mm to 0.6 mm.

[0061] Illustratively, the number of the liquid outlets 211 may be 1, 3, 4, 6 or 7.

[0062] Illustratively, the diameter of the liquid outlet 211 is 0.1 mm, 0.2 mm, 0.4 mm, 0.5 mm or 0.6 mm.

[0063] In one embodiment, there are six liquid outlets 211 , each with a diameter of 0.4 mm. The pressure of the liquid ejected from each outlet 211 is 50 MPa, and the flow rate of each outlet 211 is approximately 6.6 L / min. The power consumed by the liquid outlets 211 of the liquid ice-breaking device 21 to eject liquid and break ice is approximately 5.5 kW. Considering factors such as energy loss during the liquid pumping process, when the power of the liquid pump is approximately 5.5 kW, the flow rate of each liquid outlet 211 is slightly less than 6.6 L / min.

[0064] In one embodiment, the ice-breaking assembly 2 further includes a liquid storage tank, to which the liquid pump input is connected. With this structure, the liquid storage tank is used to store liquid. Liquid in the liquid storage tank enters the liquid pump through its input. The liquid pump then pumps the liquid in the liquid storage tank through its liquid inlet to the liquid ice-breaking device 21. The liquid is then ejected through the liquid outlet 211 of the liquid ice-breaking device 21 to break the ice.

[0065] It can be understood that, since the liquid does not need to be heated, neither the liquid ice-breaking device 21 nor the liquid storage tank needs to be provided with a heating device for heating the liquid.

[0066] In one embodiment, the de-icing fluid is stored in the fluid storage tank.

[0067] In one embodiment, please refer to Figures 1 to 5 The liquid ice-breaking device 21 includes a first mounting frame 212, an ice breaker 213 and a first cleaning device 214. The first mounting frame 212 is connected to the bottom of the vehicle frame 1. The ice breaker 213 is connected to the first mounting frame 212, and the liquid inlet and the liquid outlet 211 are formed on the ice breaker 213. The first cleaning device 214 is connected to the first mounting frame 212, and the first cleaning device 214 is used to clean the floating snow above the ice surface. With such a structural form, the floating snow above the ice surface is cleaned by the first cleaning device 214, so that the floating snow above the ice surface does not form a buffer for the liquid ejected from the liquid outlet 211. The floating snow on the ice surface is cleared, and the ice attached to the track is exposed, which is conducive to the liquid ejected from the liquid outlet 211 hitting the ice layer to better achieve ice breaking.

[0068] In one embodiment, please refer to Figure 2 and Figure 3The first cleaning device 214 includes a snowplow 2141 and a sweeper 2142. The snowplow 2141 is connected to the first mounting frame 212. The sweeper 2142 is connected to the first mounting frame 212 and is located between the snowplow 2141 and the ice breaker 213 along the moving direction of the vehicle frame 1. With this structure, the snowplow 2141 can be used to clear a large amount of floating snow on the ice surface. Since the surface of the ice attached to the track is not necessarily relatively flat, some floating snow may still remain on the ice surface after the snowplow 2141 clears the floating snow. The roller brush of the sweeper 2142 is relatively soft and can better adapt to the uneven ice surface. The sweeper 2142 can effectively clear the floating snow remaining on the ice surface.

[0069] Understandably, see Figure 11 The track of some rail vehicles is a trough track 100. The rail vehicles are arranged on the track surface 103 of the trough walls 101 on both sides of the trough track 100. The groove 102 of the trough track 100 is located between the two side walls 101. The extension direction of the groove 102 is arranged along the extension direction of the trough track 100.

[0070] In one embodiment, please refer to Figure 5 and Figure 11 Liquid ice-breaking devices 21 are provided on opposite sides of the vehicle frame 1 along a predetermined direction. The predetermined direction intersects the movement direction of the vehicle frame 1. The area between the two liquid ice-breaking devices 21 is the target area 22. The snow-shoveling direction of the snowplow 2141, the sweeping direction of the roller 2142, and the spraying direction of the liquid outlet 211 are all inclined toward the target area 22. With this structural form, the liquid ice-breaking devices 21 on both sides break ice adhering to the track surface 103 of the corresponding side groove wall 101. The floating snow removed by the snowplow 2141 and the roller 2142, as well as the ice broken off the track by the liquid sprayed from the liquid outlet 211, are all cleared into the groove 102 of the grooved track 100, minimizing the risk of floating snow and broken ice falling off the track.

[0071] See also Figure 5 In the two liquid ice-breaking devices 21 arranged opposite to each other along a preset direction, the snow-clearing direction of the snowplow 2141 of one of the liquid ice-breaking devices 21, the sweeping direction of the roller 2142, and the spraying direction of the liquid outlet 211 are projected in the direction indicated by arrow R1 in the figure. In the two liquid ice-breaking devices 21 arranged opposite to each other along a preset direction, the snow-clearing direction of the snowplow 2141 of the other of the liquid ice-breaking devices 21, the sweeping direction of the roller 2142, and the spraying direction of the liquid outlet 211 are projected in the direction indicated by arrow R5 in the figure. Both the directions indicated by arrow R1 and arrow R5 are inclined toward the target area 22.

[0072] See also Figure 5 and Figure 11 , the preset direction is the direction indicated by the arrow R2 in the figure.

[0073] See also Figure 1 and Figure 5 The moving direction of the frame 1 is the direction indicated by the arrow R3 in the figure.

[0074] See also Figure 1 and Figure 11 , the up and down directions are the directions indicated by arrow R4 in the figure.

[0075] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 5 The vehicle chassis also includes a second cleaning device 3, which is connected to the bottom of the vehicle frame 1 and is located on the side of the ice breaker 213 that is away from the first cleaning device 214 along the movement direction of the chassis. With this structure, since the second cleaning device 3 is located on the side of the ice breaker 213 that is away from the first cleaning device 214 along the movement direction of the chassis, the second cleaning device 3 can clean the ice broken by the ice breaker 213 on the track, so that the ice broken by the ice breaker 213 is separated from the track, thereby clearing the ice on the track more thoroughly.

[0076] In one embodiment, please refer to Figure 7 The second cleaning device 3 includes a third mounting frame 31, a motor 32 and a disc cleaner 33. The third mounting frame 31 is mounted below the vehicle frame 1, the motor 32 is mounted on the third mounting frame 31, and the disc cleaner 33 is connected to the motor 32, which drives the disc cleaner 33 to rotate.

[0077] In one embodiment, please refer to Figure 7 The rotation axis direction of the disc cleaner 33 is arranged along the up-down direction.

[0078] In one embodiment, please refer to Figure 1 , Figures 3 to 6 ,as well as Figure 8 and Figure 9The vehicle chassis also includes an air blowing system 4 and a spraying system 5. The air blowing system 4 has an air outlet 41. The spraying system 5 has a spraying port 51. The air outlet 41 is at least partially located between the spraying port 51 and the liquid outlet 211 along the moving direction of the vehicle frame 1. The spraying port 51 is used to spray antifreeze liquid. With such a structural form, since the air outlet 41 is at least partially located between the spraying port 51 and the liquid outlet 211 along the moving direction of the vehicle frame 1, after the liquid outlet 211 sprays liquid to break the ice on the track, air is blown toward the track through the air outlet 41 to reduce the humidity of the track surface as much as possible. The antifreeze liquid is sprayed onto the track blown through the air outlet 41 through the spraying port 51 to prevent the track from freezing again within a certain period of time.

[0079] In one embodiment, please refer to Figure 1 , Figures 3 to 6 ,as well as Figure 8 and Figure 9 Liquid ice-breaking devices 21 are installed on both sides of the air outlet 41 along the moving direction of the vehicle frame 1, and an air outlet 41 is correspondingly installed between the spray port 51 and the liquid outlet 211 on each side. With this structural form, liquid ice-breaking devices 21 are installed on both sides of the air outlet 41 along the moving direction of the vehicle frame 1. Regardless of whether the vehicle frame 1 is moving forward or backward, the liquid ice-breaking devices 21 on the corresponding side can break ice on the track. Furthermore, the air outlet 41 between the spray port 51 and the liquid outlet 211 on the corresponding side can purge the track to reduce humidity, facilitating the spray system to spray antifreeze liquid onto the track through the spray port 51. This provides more flexible track de-icing.

[0080] In one embodiment, please refer to Figure 1 and Figure 11 The vehicle chassis also includes wheels 6 mounted below the frame 1. These wheels 6 are positioned between the liquid ice-breaking devices 21 on either side of the frame 1 in its direction of movement. With this structure, regardless of whether the frame 1 of the rail vehicle is moving forward or backward, the wheels 6 come into contact with the tracks that have been broken by the liquid ice-breaking devices 21. This clears the ice from the tracks that the wheels 6 are in contact with, minimizing slippage on the ice and improving the safety of the rail vehicle.

[0081] In one embodiment, please refer to Figure 5 、 Figure 6 、 Figure 8 and Figure 9 and Figure 11The frame 1 is provided with spray ports 51 and liquid ice-breaking devices 21 on opposite sides along a preset direction, and the preset direction is arranged crosswise with the moving direction of the frame 1. With this structure, when the rail vehicle moves on the trough track 100 below, the trough walls 101 on both sides of the trough track 100 are arranged at intervals along the preset direction. The frame 1 is provided with spray ports 51 and liquid ice-breaking devices 21 on opposite sides along the preset direction. The ice-breaking device on each side breaks ice on the track surface 103 of the trough wall 101 of the corresponding side trough track 100, and the spray ports 51 on each side spray antifreeze liquid on the track surface 103 above the trough wall 101 of the corresponding side trough track 100, thereby effectively breaking ice and preventing ice on the trough track 100.

[0082] In one embodiment, please refer to Figure 1 、 Figure 5 and Figure 6 ,as well as Figures 8 to 10 The blowing system 4 includes a second mounting bracket 42 , which is connected to the bottom of the frame 1 . The frame 1 is provided with second mounting brackets 42 on opposite sides along a preset direction.

[0083] In one embodiment, please refer to Figure 1 、 Figure 5 、 Figure 6 、 Figure 8 and Figure 9 and Figure 11 The blowing system 4 also includes an air outlet device 43 connected to the second mounting bracket 42. An air outlet 41 is formed in the air outlet device 43. Air outlet devices 43 are provided on opposite sides of the vehicle frame 1 along a predetermined direction, with two air outlet devices 43 on each side. The spray port 51 on each side is located between the air outlet devices 43 on each side along the movement direction of the vehicle frame 1. With this structure, the air outlet device 43 on each side can blow the track surface 103 of the groove wall 101 on the corresponding side of the grooved track 100. After the liquid ice breaking device 21 on the corresponding side breaks the ice, the track surface 103 of the groove wall 101 on both sides can be dried as much as possible by the air outlet device, thereby reducing humidity. The spray port 51 on each side is located between the two air outlet devices 43 on each side along the moving direction of the frame 1. Regardless of whether the frame 1 moves forward or backward along the moving direction, after the liquid ice-breaking device 21 breaks the ice, the track surface 103 will be purged through the corresponding air outlet device 43 of the two air outlet devices 43 on each side. After being purged by the air outlet device 43, the antifreeze liquid will be sprayed on the track surface 103 of the corresponding side groove wall 101 through the spray port 51.

[0084] It is understandable that Figure 5 、 Figure 6 、 Figure 8 and Figure 11There are two air outlets 43 on each side, with each air outlet 43 installed on opposite sides of the frame 1 along the predetermined direction, for a total of four air outlets 43. The air volume of each air outlet 43 requires independent control. The distance between the bottom of the frame 1 and the track surface 103 of the trough-shaped track 100 is relatively short, thus limiting the height clearance below the frame 1. Furthermore, the width clearance of the frame 1 along the predetermined direction is also somewhat limited.

[0085] In one embodiment, please refer to Figure 5 、 Figure 6 、 Figure 9 and Figure 10 The blowing system 4 further includes a first air duct 44, which corresponds to the air outlet device 43 one by one, and one end of the first air duct 44 is connected to the corresponding air outlet device 43. In this structural form, air is supplied to the air outlet device 43 through the first air duct 44.

[0086] It can be understood that the first air ducts 44 correspond to the air outlet devices 43 one by one, and each air outlet device 43 supplies air through the corresponding first air duct 44. Since the total number of air outlet devices 43 is four, the corresponding number of first air ducts 44 is four.

[0087] In one embodiment, please refer to Figure 6 、 Figure 9 and Figure 10 The blowing system 4 further includes a regulating valve 45, which corresponds one-to-one to each first air duct 44 and is connected to the other end of the corresponding first air duct 44. With this structure, the air flow rate of each first air duct 44 to the air outlet device 43 can be independently adjusted by the corresponding regulating valve 45.

[0088] It can be understood that the regulating valves 45 correspond to the first air ducts 44 on a one-to-one basis. Since there are four first air ducts 44 , there are four regulating valves 45 on a corresponding basis.

[0089] In one embodiment, please refer to Figure 6 and Figure 10 There are two second air ducts 46 , which are arranged in a predetermined direction. The second air ducts 46 are connected to the side of the corresponding regulating valve 45 that is away from the corresponding first air duct 44 . In this structural form, the second air duct 46 is connected to the corresponding regulating valve 45, and air is supplied to the corresponding regulating valve 45 through the second air duct 46 .

[0090] It can be understood that the second air ducts 46 are connected to corresponding regulating valves 45 , there are two second air ducts 46 , and there are two regulating valves 45 connected to the second air ducts 46 .

[0091] In one embodiment, please refer to Figure 10The blowing system 4 also includes an elbow 47. One end of each second air duct 46 away from the regulating valve 45 is connected to the elbow 47, and the second air duct 46 is sleeved on the outside of the elbow 47. In this structural form, air is supplied to the second air duct 46 through the elbow 47.

[0092] It can be understood that each second air duct 46 is connected to an elbow 47 , and there are two second air ducts 46 , and correspondingly there are two elbows 47 .

[0093] In one embodiment, please refer to Figure 5 、 Figure 6 and Figure 10 The blowing system 4 further includes a bellows 48, which is located below the elbow 47. The elbow 47 is connected to the bellows 48. The bellows 48 and the regulating valve 45 are arranged along the direction of movement of the frame 1. The bellows 48 are located between the second mounting brackets 42 on both sides. With this structure, air is supplied to the elbow 47 through the bellows 48. The arrangement of the bellows 48 and the regulating valve 45 along the direction of movement of the frame 1 reduces the space occupied by the bellows 48 and the regulating valve 45 in the height direction and in the predetermined direction. This facilitates the arrangement of the bellows 48 and the regulating valve 45 when space in both the height and predetermined directions is limited.

[0094] In one embodiment, the elbow 47 and the bellows 48 can be integrally formed or welded.

[0095] In one embodiment, the elbow 47 and the bellows 48 are detachably connected.

[0096] It is understood that the path from the bellows 48 to the corresponding air outlet 43 should not be too long to reduce the pressure loss along the airflow during the air supply process. Because the path from the bellows 48 to the corresponding air outlet 43 should not be too long, the bellows 48 is located between the two air outlets 43. The two air outlets 43 on both sides will limit the space on both sides of the bellows 48 along the predetermined direction.

[0097] In one embodiment, please refer to Figure 10The blowing system 4 also includes two third air ducts 49, which are arranged in a predetermined direction. One end of each third air duct 49 is connected to the regulating valve 45, and the other end of each third air duct 49 is connected to the side of the bellows 48 facing the regulating valve 45. With this structure, of the four regulating valves 45, except for the two regulating valves 45 connected to the third air duct, the remaining two regulating valves 45 are respectively connected to corresponding third air ducts 49. Each third air duct 49 has two ends connected to the corresponding regulating valve 45 and the bellows 48. With this structure, the airflow in the bellows 48 is divided into four paths and delivered to the four air outlet devices 43 respectively. The third air duct 49 is connected to the side of the bellows 48 facing the regulating valve 45, and the second air duct 46 is connected to the elbow 47 on the upper side of the bellows 48. The two second air ducts 46 are located above the two third air ducts 49. Because the second air ducts 46 and the third air ducts 49 are arranged in the vertical direction rather than in the preset direction, the space occupied by the bellows 48, elbow 47, second air duct 46, third air duct 49, and the corresponding regulating valve 45 in the preset direction can be reduced to a certain extent. The bellows 48, elbow 47, second air duct 46, third air duct 49, and regulating valve 45 can be well arranged within the limited space between the air outlet devices 43 on both sides along the preset direction. Because the two second air ducts 46 are arranged in the preset direction, while the two second air ducts 46 are not arranged in the vertical direction, and the two third air ducts 49 are arranged in the preset direction, while the two third air ducts 49 are not arranged in the vertical direction, the space occupied by the bellows 48, elbow 47, second air duct 46, third air duct 49, and regulating valve 45 in the vertical direction can be reduced to a certain extent. This facilitates the arrangement of the bellows 48, elbow 47, second air duct 46, third air duct 49, and regulating valve 45 in the limited height space below the vehicle frame 1. Furthermore, since the elbow 47 is connected to the top of the bellows 48, the second air duct 46 is connected to the elbow 47, the port of the third air duct 49 facing the bellows 48 is the first target port 491, and the port of the second air duct 46 facing the elbow 47 is the second target port 461. The top surface 481 of the bellows 48 is appropriately higher than the top of the target port so that the third air duct 49 can be more conveniently installed on the side of the bellows 48 facing the regulating valve 45. The highest position of the bellows 48 and the elbow 47 does not need to be higher than the top of the second target port 461 of the second air duct 46. The total height of the bellows 48 and the elbow 47 can be appropriately reduced, which is conducive to the arrangement of the bellows 48 and the elbow 47 in a limited height space.In addition, the third air duct 49 and the bellows 48 can be connected first. Before the third air duct 49 and the bellows 48 are connected, the second air duct 46 and the elbow 47 above the third air duct 49 have not been installed. There is enough space above the third air duct 49 to facilitate the installation of the third air duct 49. After the third air duct 49 is installed, the elbow 47 connected to the second air duct 46 is installed to the bellows 48. Since the elbow 47 is connected to the top of the bellows 48, the third air duct 49 is connected to the side of the bellows 48 toward the regulating valve 45 along the moving direction of the frame 1. The elbow 47 and the third air duct 49 are respectively installed to the bellows 48 from different directions. During the installation of the elbow 47, even if the distance between the second air duct 46 and the third air duct 49 in the up and down direction is small, it can be installed more conveniently. While facilitating the installation of the elbow 47 and the third air duct 49 onto the bellows 48, the distance between the second air duct 46 and the third air duct 49 in the vertical direction can be appropriately reduced, thereby reducing the space occupied by the bellows 48, the elbow 47, the second air duct 46, the third air duct 49 and the regulating valve 45 in the height direction, which is beneficial for arranging the bellows 48, the elbow 47, the second air duct 46, the third air duct 49 and the regulating valve 45 within the limited height space below the vehicle frame 1.

[0098] In one embodiment, please refer to Figure 6 and Figure 10 The regulating valve 45 includes a valve body 451 for conveying air flow and an actuator 452 for opening and closing the valve body 451. In the two regulating valves 45 arranged along the preset direction, the two valve bodies 451 are located between the two actuators 452. The first air duct 44 is connected to the valve body 451, the second air duct 46 is connected to the end of the corresponding valve body 451 away from the first air duct 44, and the third air duct 49 is connected to the end of the corresponding valve body 451 away from the first air duct 44. It can be understood that when the size of the bellows 48 along the preset direction is roughly equal to the size of the two valve bodies 451 arranged along the preset direction, the bellows 48 can meet the air supply needs of the two second air ducts 46 arranged along the preset direction and the two third air ducts 49 arranged along the preset direction. Since the two valve bodies 451 in the two regulating valves 45 arranged along the preset direction are located between the two actuators 452, the span of the two actuators 452 arranged along the preset direction in the preset direction is greater than the size of the bellows 48 along the preset direction, there is a large space that can be used between the bellows 48 and the second mounting bracket 42 along the preset direction.

[0099] In one embodiment, please refer to Figure 5 、 Figure 6 、 Figure 9 and Figure 10The blowing system 4 also includes a fourth air duct 40 and a fan 401. One end of the fourth air duct 40 is connected to one side of the bellows 48 along a predetermined direction, and the fan 401 is connected to the other end of the fourth air duct 40. The fan 401 is connected to the lower portion of the vehicle frame 1 and is located at the end of the second mounting frame 42 facing away from the air outlet device 43. With this structure, the fan 401 delivers air to the bellows 48 through the fourth air duct 40. The airflow in the bellows 48 is then divided into four paths through two second air ducts 46 and two third air ducts 49 and flows to corresponding regulating valves 45. The airflow is then controlled by the corresponding regulating valves 45. The airflow passing through each regulating valve 45 is then delivered to the corresponding air outlet device 43 through the corresponding first air duct 44. One end of the fourth air duct 40 is connected to one side of the bellows 48 along a predetermined direction. This allows the fourth air duct 40 to be arranged in the space between the bellows 48 and the second mounting frame 42 along the predetermined direction. This makes the blowing system 4 more compact and facilitates its placement within a limited space. The fan 401 is located at one end of the second mounting frame 42 away from the air outlet device 43. On the one hand, this position has sufficient space for installing a larger fan 401, and on the other hand, it can minimize the interference between the fourth air duct 40 and the actuator 452.

[0100] An embodiment of the present application provides an ice-breaking method, applicable to a rail vehicle according to any of the aforementioned embodiments. The ice-breaking method comprises: spraying liquid onto the track below the rail vehicle through the liquid outlet 211 of the liquid ice-breaking device 21 to break ice adhering to the track. Thus, by spraying liquid onto the ice adhering to the track to break the ice, the liquid does not need to be heated, which can reduce heat exchange between the liquid and the surrounding environment and reduce ice-breaking power.

[0101] In one embodiment, the pressure of the liquid sprayed from the liquid outlet 211 is 20 MPa to 50 MPa, so as to achieve better ice breaking and reduce the possibility of the sprayed liquid damaging the track.

[0102] In one embodiment, the liquid ejected from the liquid outlet 211 is de-icing liquid.

[0103] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A vehicle chassis, characterized in that: include: Frame; An ice-breaking assembly includes a liquid ice-breaking device and a liquid feeding pump. The liquid ice-breaking device is connected to the bottom of the vehicle frame. The liquid ice-breaking device has a liquid inlet and a liquid outlet. The liquid feeding pump is mounted on the vehicle frame. The output end of the liquid feeding pump is connected to the liquid inlet of the liquid ice-breaking device. The liquid feeding pump is used to pump liquid into the liquid ice-breaking device so that the liquid outlet sprays liquid to break ice. The vehicle chassis further comprises: A blowing system with an air outlet; a spray system having a spray port, wherein the air outlet is at least partially located between the spray port and the liquid outlet along the moving direction of the frame, and the spray port is used to spray antifreeze liquid; The liquid ice-breaking device is provided on both sides of the air outlet along the moving direction of the frame, the air outlet is correspondingly provided between the spray port and the liquid outlet on each side, the spray port and the liquid ice-breaking device are provided on opposite sides of the frame along a preset direction, and the preset direction is arranged crosswise with the moving direction of the frame. The blowing system includes: a second mounting bracket connected to the bottom of the vehicle frame, wherein the second mounting bracket is provided on opposite sides of the vehicle frame along a preset direction; an air outlet device connected to the corresponding second mounting bracket, the air outlet being formed on the air outlet device, the air outlet device being provided on opposite sides of the frame along the preset direction, the number of the air outlet devices being two on each side, and the spray port on each side being located between the two air outlet devices on each side along the moving direction of the frame; a first air duct, corresponding one-to-one to the air outlet device, one end of the first air duct being connected to the corresponding air outlet device; a regulating valve corresponding one-to-one to each of the first air ducts, the regulating valve being connected to the other end of the corresponding first air duct, the regulating valve comprising a valve body for conveying airflow and an actuator for opening and closing the valve body, wherein two regulating valves arranged in a preset direction have the two valve bodies located between the two actuators; Two second air ducts are provided, the two second air ducts are arranged in a preset direction, and the second air ducts are connected to a side of the regulating valve that is away from the first air duct; An elbow, one end of each second air duct facing away from the regulating valve is connected to the elbow, and the second air duct is sleeved on the outside of the elbow; a bellows located below the elbow, the elbow being connected to the bellows, the bellows and the regulating valve being arranged along the moving direction of the frame, and the bellows being located between the second mounting frames on both sides; two third air ducts arranged along the preset direction, one end of each third air duct connected to the regulating valve, and the other end of each third air duct connected to a side of the bellows facing the regulating valve; a fourth air duct, one end of which is connected to one side of the air box along the preset direction; A fan is connected to the other end of the fourth air duct, the fan is connected to the bottom of the frame, and the fan is located at one end of the second mounting frame away from the air outlet device.

2. The vehicle chassis according to claim 1, characterized in that The pressure of the liquid sprayed from the liquid outlet is 20 MPa to 50 MPa.

3. The vehicle chassis according to claim 1, characterized in that The number of the liquid outlets is 1 to 7, and / or the diameter of each liquid outlet is 0.1 mm to 0.6 mm.

4. The vehicle chassis according to any one of claims 1 to 3, characterized in that: The liquid ice-breaking device comprises: a first mounting frame connected to the lower side of the vehicle frame; an ice breaker connected to the first mounting frame, the liquid inlet and the liquid outlet being formed on the ice breaker; The first cleaning device is connected to the first mounting frame, and the first cleaning device is used to clean floating snow above the ice surface.

5. The vehicle chassis according to claim 4, characterized in that The first cleaning device comprises: a snow shovel connected to the first mounting bracket; A roller sweeper is connected to the first mounting frame, and the roller sweeper is located between the snow shovel and the ice breaker along the moving direction of the frame.

6. The vehicle chassis according to claim 5, characterized in that The liquid ice-breaking devices are provided on opposite sides of the frame along a preset direction, and the preset direction is arranged crosswise with the moving direction of the frame. The area between the liquid ice-breaking devices on both sides is the target area, and the snow shoveling direction of the snow shovel, the sweeping direction of the roller and the spraying direction of the liquid outlet are all inclined toward the target area.

7. The vehicle chassis according to claim 4, characterized in that The vehicle chassis further comprises a second cleaning device connected to the bottom of the vehicle frame. The second cleaning device is located on a side of the ice breaker away from the first cleaning device along the moving direction of the chassis.

8. The vehicle chassis according to any one of claims 1 to 3, characterized in that: The ice-breaking assembly further includes a liquid storage tank, and the input end of the liquid delivery pump is connected to the liquid storage tank.

9. A rail vehicle, characterized in that: include: The vehicle chassis according to any one of claims 1 to 8; The vehicle body is installed on the vehicle chassis.

10. An ice-breaking method, characterized in that: Applied to the rail vehicle according to claim 9, the ice-breaking method comprises: spraying liquid onto the rail below the rail vehicle through the liquid outlet of the liquid ice-breaking device to break ice attached to the rail.

11. The ice-breaking method according to claim 10, characterized in that: The pressure of the liquid sprayed from the liquid outlet is 20 MPa to 50 MPa.

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