CN112744241A

CN112744241A - Rail vehicle

Info

Publication number: CN112744241A
Application number: CN201911055002.XA
Authority: CN
Inventors: 曾浩; 刘俊杰; 许玉红; 梅雄; 张安庆
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2021-05-04
Anticipated expiration: 2039-10-31
Also published as: CN112744241B

Abstract

The invention discloses a rail vehicle, comprising: the bottom of each vehicle body is provided with a vehicle body underframe, a wheel set is arranged between two adjacent vehicle bodies, and the top of the wheel set protrudes out of the upper surface of the vehicle body underframe; the through passage is connected between two adjacent vehicle bodies and comprises a sub through passage, and the sub through passage is formed by upwards protruding a part of the bottom of the through passage; at least one wheel package group, wheel package group is including two wheel packages, and two wheel packages link to each other with the automobile body chassis detachably of two adjacent sections automobile body, and two wheel packages are located the both ends on the length direction of the edge automobile body of sub-through passage, and two wheel packages and sub-through passage cover in the top of wheel group jointly, and two wheel packages link to each other with sub-through passage detachably. According to the railway vehicle, the sealing performance in the vehicle is good, and the wheel set can be repaired, maintained and assembled in the vehicle.

Description

Rail vehicle

Technical Field

The invention relates to the technical field of rail transit, in particular to a rail vehicle.

Background

In the related art, when the wheels of the railway vehicle need to be disassembled, the whole railway vehicle needs to be placed in a vehicle section with a traveling crane, and the wheels can be disassembled after the whole vehicle body of the railway vehicle is separated from a bogie by the traveling crane. The dismounting method can be completed in a vehicle section with a crane, the whole process is time-consuming and labor-consuming, and the service life of the bogie and the vehicle body can be seriously influenced by frequently dismounting and mounting the fastener.

In addition, the wheel package of the rail vehicle extends from the roof all the way down to the floor, which can affect the view and the permeability of the room due to the large area occupied by the wheel package.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, one object of the present invention is to provide a rail vehicle, which has good sealing performance in the vehicle, and can implement in-vehicle maintenance and disassembly and assembly of wheel sets, the whole process is time-saving and labor-saving, and the problem that the service life of the conventional fastening piece between the bogie and the vehicle body is seriously affected by frequent disassembly and assembly is avoided.

A rail vehicle according to an embodiment of the present invention includes: the bottom of each section of the vehicle body is provided with a vehicle body underframe, a wheel set is arranged between two adjacent sections of the vehicle body, and the top of the wheel set protrudes out of the upper surface of the vehicle body underframe; the through passage is connected between two adjacent sections of the vehicle bodies and comprises a sub through passage, and the sub through passage is formed by upwards protruding a part of the bottom of the through passage; at least one round of package group, the round of package group is including two rounds of packages, two round package and adjacent two the automobile body chassis detachably links to each other, two the round package is located the edge that the son link up the ascending both ends of length direction of automobile body, two the round package with the son link up the way and cover jointly and establish the top of wheel group, and two the round package with the son link up a detachably and link to each other.

According to the rail vehicle provided by the embodiment of the invention, the sub through passage formed by upwards protruding a part of the bottom of the through passage is arranged, the sub through passage and the two wheel packages arranged at two ends of the sub through passage along the length direction of the vehicle body are detachably connected with the chassis of the vehicle body, and the two wheel packages and the sub through passage are jointly covered above the wheel sets, so that the sealing performance in the vehicle is good, the maintenance and the assembly and disassembly of the wheel sets in the vehicle can be realized, the whole process is time-saving and labor-saving, and the problem that the service life of the conventional steering frame is seriously influenced by frequently assembling and disassembling a fastener between the steering frame and the vehicle body is avoided.

According to some embodiments of the invention, a mounting plate is arranged between the sub through passage and each wheel package, the mounting plate is detachably connected with the vehicle body underframe, the edge of the sub through passage is connected with the mounting plate through a plurality of threaded connectors, and the threaded connectors are arranged at intervals along the circumferential direction of the sub through passage.

According to some embodiments of the invention, the mounting plate is a frame-shaped structure, and the plurality of threaded connectors are evenly spaced along a circumferential direction of the mounting plate.

According to some embodiments of the invention, one side edge of each wheel packet facing the sub through passage is provided with a flange, and the flange is lapped on one side surface of the mounting plate adjacent to the sub through passage.

According to some embodiments of the invention, a bogie is provided between two adjacent vehicle bodies, and the bogie is used for supporting the end parts of the two adjacent vehicle bodies, wherein the wheel set is located in the bogie, and the two adjacent vehicle bodies are hinged with the bogie.

According to some embodiments of the present invention, the hinge positions of the adjacent two sections of the vehicle body and the bogie are located at both ends of the bogie in the length direction of the vehicle body, and the hinge positions are located on the same line as the two support positions arranged in the axial direction of the wheel.

According to some embodiments of the invention, the bogie is a two-axle bogie, the set of wheels comprising at least two wheels arranged in the length direction of the body with parallel axes.

According to some embodiments of the invention, each said wheel pack covers at least part of said wheel.

According to some embodiments of the invention, the bottom edge of each wheel pack is provided with a plurality of mounting portions arranged at intervals, and the mounting portions are in threaded connection with the vehicle body underframe through a plurality of threaded fasteners.

According to some embodiments of the invention, the sub through passage and the two wheel packages are located at the center in the width direction of the vehicle body.

According to some embodiments of the invention, the bottom of the through passage is provided with two transition plates, and the two transition plates are respectively positioned at two sides of the wheel package.

According to some embodiments of the invention, the rail vehicle further comprises: the two pedals are arranged at intervals along the length direction of the railway vehicle; at least one telescopic bracket, telescopic bracket connects two between the footboard, wherein the cab apron overlap joint is two the top of footboard, the cab apron with telescopic bracket pivotally links to each other.

According to some embodiments of the invention, the ferry plate is pivotally connected to the telescopic bracket by at least one pivot structure, and the ferry plate is provided with at least one cover plate, and the ferry plate is detachably connected to the pivot structure by the cover plate.

According to some embodiments of the invention, the central axis of each of the wheels is lower than the upper surface of the vehicle body underframe.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic illustration of a rail vehicle according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the rail vehicle shown in FIG. 1;

FIG. 3 is a partial schematic view of the vehicle body shown in FIG. 1;

FIG. 4 is another fragmentary schematic view of the vehicle body shown in FIG. 3, with two wheel packs and a sub through passage not shown;

FIG. 5 is a schematic view of a mounting plate according to an embodiment of the invention;

FIG. 6 is a schematic view of two wheel packs, sub through passages, wheel sets and a bogie according to an embodiment of the invention;

FIG. 7 is a top plan view of the right side wheel package shown in FIG. 6;

FIG. 8 is a bottom view of the vehicle body according to an embodiment of the present invention;

FIG. 9 is a schematic view of a sub-through passage prior to compression according to an embodiment of the invention;

FIG. 10 is a schematic view of the sub-through passage shown in FIG. 9 after compression;

FIG. 11 is a top view of a bogie and wheel set in accordance with an embodiment of the present invention;

FIG. 12 is a front view of the bogie and wheel set shown in FIG. 11;

FIG. 13 is a side view of the bogie and wheel set shown in FIG. 11;

FIG. 14 is a schematic view of the assembly of a ferry plate and two pedals according to an embodiment of the present invention;

FIG. 15 is a front view of the ferry plate and two pedals shown in FIG. 14;

FIG. 16 is a top view of the ferry plate and two pedals shown in FIG. 14;

FIG. 17 is a bottom view of the ferry plate and two pedals shown in FIG. 14;

fig. 18 is a side view of the ferry plate and two pedals shown in fig. 14.

Reference numerals:

a rail vehicle 100;

a vehicle body 1; a vehicle body under frame 11; a wheel 121;

a through passage 2; a sub through passage 21; a cab apron 22;

the wheel package 31; a flange 311; a mounting portion 312; a threaded fastener 313;

a bogie 4; the support position 41; the hinge location 42;

a mounting plate 5; a connection hole 51;

a pedal 6; a pedal bracket 61; a telescopic bracket 7;

a pivoting structure 8; and a cover plate 9.

Detailed Description

Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.

A railway vehicle 100 according to an embodiment of the invention is described below with reference to fig. 1-18. In the following description of the present application, the rail vehicle 100 is exemplified as a straddle-type monorail vehicle. Of course, those skilled in the art will appreciate that the rail vehicle 100 may also be other types of rail vehicles 100 and is not limited to straddle-type monorail vehicles.

As shown in fig. 1 to 4, a railway vehicle 100, such as a straddle-type monorail vehicle, according to an embodiment of the present invention includes at least two vehicle bodies 1, at least one through passage 2, and at least one wheel pack group.

Specifically, at least two vehicle bodies 1 are arranged in order along the longitudinal direction of the track vehicle 100. For example, in the example of fig. 1, three-segment vehicle body 1, two through passages 2, and two wheel package groups are shown. It is understood that the specific number of the vehicle bodies 1 can be specifically set according to actual requirements to better meet practical applications, and the number of the through passages 2 and the wheel package groups can be specifically determined according to the number of the vehicle bodies 1.

The bottom of each section of the vehicle body 1 is provided with a vehicle body underframe 11, a wheel set is arranged between two adjacent sections of the vehicle body 1, and the top of the wheel set protrudes out of the upper surface of the vehicle body underframe 11. Thus, by arranging the top of the wheel set to protrude from the upper surface of the vehicle body underframe 11, the height of the vehicle body underframe 11 of the rail vehicle 100, such as a straddle-type monorail vehicle, can be reduced, and the driving safety of the rail vehicle 100, such as a straddle-type monorail vehicle, is improved.

The through passage 2 is connected between two adjacent vehicle bodies 1, the through passage 2 comprises a sub through passage 21, and the sub through passage 21 is formed by upward protruding a part of the bottom of the through passage 2. At this time, the sub through passage 21 is a part of the through passage 2, the whole structure of the through passage 2 is still an integral structure, and the sealing performance in the vehicle is better.

The wheel package group comprises two wheel packages 31, the two wheel packages 31 are detachably connected with the vehicle body underframe 11 of two adjacent vehicle bodies 1, the two wheel packages 31 are located at two ends of the sub through passage 21 in the length direction of the vehicle body 1, the two wheel packages 31 and the sub through passage 21 are covered above the wheel group together, and the two wheel packages 31 are detachably connected with the sub through passage 21. The two wheel packages 31 and the sub through passage 21 jointly separate the wheel set from the inner space of the vehicle body 1, thereby ensuring the safety of passengers. When the wheel set needs to be repaired, maintained or disassembled, only the corresponding wheel packet 31 needs to be disassembled, or the sub through passage 21 can be disassembled at the same time. So, can realize in the car maintenance and the dismouting to the wheel group, compare with the traditional mode of lifting up the automobile body and demolising the wheel in the section of vehicle that has the line to hang, can save a large amount of manpower and materials, can save the time of changing the repair again, greatly reduced the operation maintenance cost of whole car. In addition, the fasteners between the bogie 4 and the vehicle body 1 do not need to be disassembled and assembled, so that the reliability of connection between the bogie 4 and the vehicle body 1 is ensured, and the service life is prolonged. In addition, because two wheel bags 31 are respectively arranged at the front end and the rear end of the sub through passage 21, the occupied space of the sub through passage 21 and the occupied space of the two wheel bags 31 are relatively small, the structure is more compact, the space utilization rate is higher, the in-vehicle permeability of the rail vehicle 100 such as a straddle type monorail vehicle is improved, the two wheel bags 31 can be used as special luggage racks, the in-vehicle permeability is not influenced, the in-vehicle space can be fully utilized, and the riding comfort of passengers is improved.

According to the rail vehicle 100 of the embodiment of the invention, for example, a straddle type monorail vehicle, the sub through passage 21 formed by upward protruding a part of the bottom of the through passage 2 is arranged, the sub through passage 21 and the two wheel packages 31 arranged at two ends of the sub through passage 21 along the length direction of the vehicle body 1 are detachably connected with the vehicle body underframe 11, and the two wheel packages 31 and the sub through passage 21 are jointly covered above the wheel set, so that the sealing performance in the vehicle is good, the maintenance and the assembly and disassembly of the wheel set in the vehicle can be realized, the whole process is time-saving and labor-saving, and the problem that the service life is seriously influenced by the conventional frequent assembly and disassembly of fasteners between the bogie 4 and the vehicle body 1 is avoided.

According to some embodiments of the invention, referring to fig. 3-6, a mounting plate 5 is arranged between the sub through passage 21 and each wheel package 31, the mounting plate 5 is detachably connected with the vehicle body chassis 11, the edge of the sub through passage 21 is connected with the mounting plate 5 through a plurality of threaded connectors, and the threaded connectors are arranged at intervals along the circumferential direction of the sub through passage 21. Alternatively, the plurality of threaded connectors are bolts or the like. In the description of the present invention, "a plurality" means two or more. Since the sub through passage 21 and the mounting plate 5 are detachably connected by a plurality of threaded connectors such as bolts, and the mounting plate 5 is detachably connected to the vehicle body under-frame 11, the sub through passage 21 can be detached, and the wheel 121 can be effectively detached from the vehicle. In addition, the sub through passage 21 is indirectly connected with the vehicle body chassis 11 through the mounting plate 5, so that the installation is firm, and the processing technology of the sub through passage 21 and the vehicle body chassis 11 is simplified. In addition, by adopting a mode of a plurality of threaded connecting pieces, the disassembly and assembly between the sub through passage 21 and the mounting plate 5 are simplified, and the cost is saved.

Alternatively, as shown in fig. 4 and 5, the mounting plate 5 has a frame-shaped structure, and a plurality of threaded connectors are uniformly spaced along the circumferential direction of the mounting plate 5. For example, in the example of fig. 4 to 5, the mounting plates 5 are arranged in the vertical direction, and the mounting plates 5 are located at the edges of the sub through passage 21 and the corresponding wheel bags 31, so that the sub through passage 21 and the two wheel bags 31 can jointly define a mounting cavity for mounting the wheel set while ensuring that the mounting plates 5 are reliably connected with the sub through passage 21. The mounting plate 5 may be formed with a plurality of connection holes 51, wherein two connection holes 51 may be respectively located at two corners of an upper end of the mounting plate 5, another two connection holes 51 may be respectively located at an end portion of a lower end of the mounting plate 5, and the remaining connection holes 51 are respectively located between the four connection holes 51 and are uniformly spaced. Therefore, the whole mounting plate 5 is stressed uniformly, and the reliability of connection between the sub through passage 21 and the mounting plate 5 can be effectively ensured.

According to some embodiments of the present invention, referring to fig. 6, one side edge of each wheel package 31 facing the sub through passage 21 is provided with a flange 311, and the flange 311 overlaps on one side surface of the mounting plate 5 adjacent to the sub through passage 21. For example, referring to fig. 6, a side of each wheel package 31 facing the sub through passage 21 may be open, and a flange 311 is provided at an edge of the open side of each wheel package 31. During assembly, the flange 311 may be lapped on a side surface of the mounting plate 5 adjacent to the other wheel 31. Therefore, the sealing performance in the vehicle can be effectively guaranteed.

The sub through passage 21 is retractable. Alternatively, the entire through passage 2 is a bellows, and thus the sub through passage 21 may be a part of the bellows, and when the rail vehicle 100 such as a straddle-type monorail vehicle is operated, the sub through passage 21 may have a certain amount of expansion and contraction in the front-rear direction to ensure the normal operation of the rail vehicle 100 such as a straddle-type monorail vehicle. Here, it should be noted that the direction "forward" is understood to be the direction toward the front of the rail vehicle 100, for example, a straddle-type monorail vehicle, and the opposite direction is defined as "rearward", i.e., the direction toward the rear of the rail vehicle 100, for example, a straddle-type monorail vehicle. Of course, the present invention is not limited to this, and the sub through passage 21 may have another type of retractable structure, for example, the sub through passage 21 may have elasticity so as to have a certain amount of deformation in the front-rear direction. When the wheel set needs to be repaired and maintained, only the corresponding wheel packet 31 needs to be detached, or the telescopic sub through passage 21 is compressed to one side at the same time (as shown in fig. 10). When the wheel set needs to be disassembled, the wheel packet 31 can be disassembled firstly, then the sub through passage 21 is compressed towards the wheel packet 31 on the other side, and the space left after compression meets the space required by disassembling the wheel set. So, can realize maintenance and the dismouting to the wheel group in the car better, compare with the traditional mode of dismantling the wheel with the automobile body hoist in the vehicle section that has the line to hang, can save a large amount of manpower and materials, can further save the time of changing the repair again to the operation maintenance cost of whole car has further been reduced. In addition, the fasteners between the bogie 4 and the vehicle body 1 do not need to be disassembled and assembled, so that the reliability of connection between the bogie 4 and the vehicle body 1 is effectively ensured, and the service life is prolonged.

According to some embodiments of the invention, referring to fig. 1-2 and 6 in combination with fig. 11-13, a bogie 4 is arranged between two adjacent vehicle bodies 1, and the bogie 4 is used for supporting the end parts of the two adjacent vehicle bodies 1. Alternatively, the support positions 41 of the bogie 4 for the adjacent two vehicle bodies 1 are respectively located at four corners of the bogie 4. Wherein the wheel group is positioned in the bogie 4, and two adjacent vehicle bodies 1 are hinged with the bogie 4 so as to enable the two vehicle bodies 1 to move relatively.

Further, the hinge positions 42 of the adjacent two vehicle bodies 1 and the bogie 4 are located at both ends of the bogie 4 in the length direction of the vehicle body 1, and the hinge positions 42 are located on the same straight line with the two support positions 41 arranged in the axial direction of the wheel 121. For example, in the example of fig. 1-2, 6, and 11-13, the wheel set includes four wheels 121, the four wheels 121 are coaxially arranged two by two, the bogie 4 has a substantially rectangular structure, each of the four wheels 121 is arranged in the bogie 4, the support positions 41 of the bogie 4 for two adjacent vehicle bodies 1 are respectively located at four ends of the bogie 4, two support positions 41 located on the same side in the length direction of the bogie 4 are used for supporting the same vehicle body 1, the number of the hinge positions 42 is two, the bogie 4 is hinged to two adjacent vehicle bodies 1 through the two hinge positions 42 to realize the relative movement between the two vehicle bodies 1, and each hinge position 42 is located between the two support positions 41 on the same side in the length direction of the bogie 4 and is located on the same line as the two support positions 41. Therefore, the stability of the rail vehicle 100, such as a straddle-type monorail vehicle, in the running process can be effectively ensured.

Alternatively, the bogie 4 is a two-axle bogie, and the wheel set includes at least two wheels 121 arranged in the longitudinal direction of the vehicle body 1 with their axes parallel. But is not limited thereto. The top of the wheel 121 protrudes above the upper surface of the vehicle body chassis 11. Further optionally, the wheels 121 are road wheels.

Of these, four wheels 121 are shown in fig. 2, 11 and 13 for illustrative purposes, but it is obvious to those skilled in the art after reading the technical solution of the present application that the solution can be applied to other technical solutions of the number of wheels 121, which also falls within the protection scope of the present invention.

Further, as shown in fig. 1 and 6, each wheel package 31 covers at least a portion of the wheel 121. For example, in the example of fig. 1 and 6, the wheel package 31 and the sub through passage 21 collectively cover two wheels 121 disposed coaxially. With this arrangement, the occupied space of the wheel package 31 in the vehicle can be further reduced.

Further, referring to fig. 6 in combination with fig. 7, the bottom edge of each wheel package 31 is provided with a plurality of mounting portions 312 arranged at intervals, and the plurality of mounting portions 312 are screwed with the vehicle body underframe 11 by a plurality of threaded fasteners 313. Alternatively, the plurality of threaded fasteners 313 are bolts or the like. For example, in the example of fig. 6-7, each mounting portion 312 may extend horizontally outward from a bottom edge of the wheel package 31 toward a direction away from a center of the wheel package 31. When mounted, the plurality of mounting portions 312 of each wheel package 31 are placed on the upper surface of the vehicle body under frame 11, and the plurality of threaded fasteners 313 may be threaded through the plurality of mounting portions 312, respectively, and the vehicle body under frame 11. Therefore, the connection is reliable, and the disassembly and the assembly are convenient.

Alternatively, the sub through passage 21 and the two wheel packages 31 are located at the center in the width direction of the vehicle body 1, as shown in fig. 2. By means of the arrangement, the rail vehicle 100 such as a straddle type monorail vehicle is further guaranteed to run stably, passengers can pass through the through passage 2 from the two sides of the sub through passage 21 and the two wheel packages 31, a large passing width between the vehicle body 1 and the vehicle body 1 of the rail vehicle 100 such as the straddle type monorail vehicle can be guaranteed, a large passing area is achieved, and crowding is avoided.

According to some embodiments of the invention, the bottom of the through passage 2 is provided with two transition plates 22, and the two transition plates 22 are respectively located at both sides of the wheel package 31. By the arrangement, relative motion between two adjacent vehicle bodies 1 can be effectively ensured, and normal running of the rail vehicle 100 such as a straddle type monorail vehicle is ensured.

Further, in conjunction with fig. 14-18, the rail vehicle 100, such as a straddle-type monorail vehicle, further comprises: the track vehicle comprises two pedals 6 and at least one telescopic bracket 7, wherein the two pedals 6 are arranged at intervals along the length direction of the track vehicle 100 such as a straddle type monorail vehicle, the telescopic bracket 7 is connected between the two pedals 6, a transition plate 22 is overlapped above the two pedals 6, and the transition plate 22 is connected with the telescopic bracket 7 in a pivoting mode. For example, in the example of fig. 14 to 18, when the through passage is applied to a rail vehicle 100 such as a straddle-type monorail vehicle, two pedals 6 may be respectively provided at the connection portions of two vehicle bodies 1, the two pedals 6 are respectively connected to the two vehicle bodies 1, and the two pedals 6 are connected to each other through two telescopic brackets 7 arranged at left and right intervals to achieve relative approaching and separating between the two vehicle bodies 1, specifically, two pedal brackets 61 arranged at left and right intervals are fixedly connected to the bottom of each pedal 6, and both ends of each telescopic bracket 7 are respectively connected to the pedal brackets 61 at the bottom of the two pedals 6. The front and rear ends of the ferry plate 22 extend to just above the upper surfaces of the two pedals 6, respectively, and the ferry plate 22 is pivotally connected to both of the two telescopic brackets 7 so that the ferry plate 22 rotates with the movement of the rail vehicle 100, such as a straddle-type monorail vehicle. Here, it should be noted that the direction "front" is understood to be a direction toward the front of the rail vehicle 100, for example, a straddle-type monorail vehicle, and the opposite direction is defined as "rear", that is, a direction toward the rear of the rail vehicle 100, for example, a straddle-type monorail vehicle.

Alternatively, referring to fig. 14-15 in combination with fig. 16-18, the ferry plate 22 is pivotally connected to the telescopic bracket 7 by at least one pivot structure 8, at least one cover plate 9 is provided on the ferry plate 22, and the ferry plate 22 is detachably connected to the pivot structure 8 by the cover plate 9. For example, in the example of fig. 14 to 18, the ferry plate 22 is pivotally connected to one of the two telescopic brackets 7 by two pivot structures 8, and accordingly, two cover plates 9 are provided on the ferry plate 22, and the two cover plates 9 are respectively detachably connected directly above the two pivot structures 8. When the coupler 3 needs to be overhauled, maintained or disassembled, the cab apron 22 can be disassembled from the two telescopic supports 7 only by disassembling the two cover plates 9, and then the two pedals 6 are disassembled together with the two telescopic supports 7, so that the coupler 3 can be overhauled, maintained or disassembled in a vehicle.

Alternatively, the center axis of each wheel 121 is lower than the upper surface of the vehicle body under frame 11. So set up, can not take up a great space in the car, and can reduce the focus height of rail vehicle 100 such as straddle type monorail vehicle relatively, make rail vehicle 100 such as straddle type monorail vehicle's operation can be more steady.

Further, referring to fig. 3, the top surface of the sub through passage 21 is flush with the top surfaces of the two wheel bags 31. In this case, the top surface of the sub through passage 21 and the top surfaces of the two wheel packages 31 are located in the same horizontal plane. With the arrangement, the space formed by the sub through passage 21 and the two wheel bags 31 can better cover at least two wheels 121 of the wheel set, the processing technology of the sub through passage 21 and the two wheel bags 31 is simplified, and the cost is reduced.

Other constructions and operations of the rail vehicle 100 according to embodiments of the invention, such as a straddle-type monorail vehicle, are known to those skilled in the art and will not be described in detail herein.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween.

In the description of the invention, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A rail vehicle, comprising:

the bottom of each section of the vehicle body is provided with a vehicle body underframe, a wheel set is arranged between two adjacent sections of the vehicle body, and the top of the wheel set protrudes out of the upper surface of the vehicle body underframe;

the through passage is connected between two adjacent sections of the vehicle bodies and comprises a sub through passage, and the sub through passage is formed by upwards protruding a part of the bottom of the through passage;

at least one round of package group, the round of package group is including two rounds of packages, two round package and adjacent two the automobile body chassis detachably links to each other, two the round package is located the edge that the son link up the ascending both ends of length direction of automobile body, two the round package with the son link up the way and cover jointly and establish the top of wheel group, and two the round package with the son link up a detachably and link to each other.

2. The rail vehicle of claim 1, wherein a mounting plate is arranged between the sub through passage and each wheel package, the mounting plate is detachably connected with the vehicle body underframe, the edge of the sub through passage is connected with the mounting plate through a plurality of threaded connectors, and the threaded connectors are arranged at intervals along the circumferential direction of the sub through passage.

3. The rail vehicle of claim 2, wherein the mounting plate is a frame-shaped structure, and a plurality of the threaded connectors are evenly spaced along a circumference of the mounting plate.

4. The rail vehicle according to claim 2, wherein one side edge of each wheel package facing the sub through passage is provided with a flange which overlaps on one side surface of the mounting plate adjacent to the sub through passage.

5. The railway vehicle as claimed in any one of claims 1 to 4, wherein a bogie is provided between two adjacent segments of the vehicle body, the bogie being configured to support the ends of two adjacent segments of the vehicle body, wherein the set of wheels is located in the bogie, and the two adjacent segments of the vehicle body are articulated to the bogie.

6. The railway vehicle as claimed in claim 5, wherein the hinge positions of the adjacent two sections of the vehicle body and the bogie are located at both ends of the bogie in the length direction of the vehicle body, the hinge positions being located on the same line as the two support positions arranged in the axial direction of the wheel.

7. The rail vehicle of claim 5, wherein the bogie is a two-axle bogie and the wheel set includes at least two wheels arranged along a length of the body with parallel axes.

8. The rail vehicle of any of claims 1-4, wherein each wheel package covers at least a portion of the wheel.

9. The rail vehicle of any one of claims 1-4, wherein a bottom edge of each wheel package is provided with a plurality of mounting portions spaced apart, the plurality of mounting portions being threadably connected to the body underframe via a plurality of threaded fasteners.

10. The rail vehicle according to any one of claims 1 to 4, wherein the sub through passage and the two wheel packages are located at a center in a width direction of the vehicle body.

11. The rail vehicle of claim 10, wherein the bottom of the through passage is provided with two ferry plates, and the two ferry plates are respectively positioned at two sides of the wheel package.

12. The rail vehicle of claim 11, further comprising:

the two pedals are arranged at intervals along the length direction of the railway vehicle;

at least one telescopic bracket, telescopic bracket connects two between the footboard, wherein the cab apron overlap joint is two the top of footboard, the cab apron with telescopic bracket pivotally links to each other.

13. The rail vehicle of claim 12, wherein the cab apron and the telescoping legs are pivotally connected by at least one pivot structure,

the cab apron is provided with at least one cover plate, and the cab apron is detachably connected with the pivoting structure through the cover plate.

14. The rail vehicle of any of claims 1-4, wherein a central axis of each of the wheels is below an upper surface of the body chassis.