End chassis of railway transport vehicle and railway transport vehicle

Abstract

The utility model discloses an end chassis of a railway transport vehicle and the railway transport vehicle. The end chassis comprises a rear end beam assembly, a traction beam assembly, a sleeper beam web and a lower cover plate assembly. The rear end beam assembly comprises a rear end beam web; the traction beam assembly comprises a first traction beam web and a second traction beam web; two groups of sleeper beam webs are arranged; each group of sleeper beam web plates comprises two web plates, and each group of sleeper beam web plates is vertically connected with one side of the first traction beam web plate and one side of the second traction beam web plate respectively; the lower cover plate assembly comprises a middle part, a first extension part, a second extension part, a first side wing part and a second side wing part; one end of the first extension part away from the middle part is connected with the rear end beam web; the first extension part, the middle part and the second extension part are all connected with the traction beam assembly; the first side wing part and the second side wing part are respectively connected with the sleeper beam web. The end chassis of the railway transport vehicle is suitable for a lengthened railway transport vehicle to transport large-size double-layer containers.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of end chassis of railway transport car and railway transport car. BACKGROUND

[0002] On the one hand, the main box type of container on current railway freight is 20 feet general container, 40 feet general container box. The number of 48 feet container is gradually increasing. When existing vehicle transports 48 feet container, it cannot be directly loaded in the lower layer of the body bottom, and it is necessary to first select and load a 40 feet container or two 20 feet containers in the lower layer, and it cannot load 48 feet container in two layers at the same time.

[0003] On the other hand, end chassis is an important component of railway transport car. A large-load double-layer loading container railway wagon is reported in a document, including end chassis, and the end chassis includes a traction beam, the traction beam includes two traction beam webs, a traction beam upper cover plate and a traction beam lower cover plate. The document is used to load 20 feet, 40 feet container.

[0004] Therefore, it is necessary to provide an improved structure of end chassis to adapt to the lengthened railway transport car for transporting double-layer large-size container. SUMMARY

[0005] One purpose of the utility model is to provide an end chassis of railway transport car, which can be applied to lengthened railway transport car and used for large-size (such as 48 feet) double-layer container transportation. Another purpose of the utility model is to provide a railway transport car.

[0006] The utility model realizes the above-mentioned purposes by adopting the following technical solutions.

[0007] On the one hand, the utility model provides an end chassis of railway transport car, which includes:

[0008] The rear end beam is composed of a rear end beam web, which is in the form of a flat plate and is vertically arranged;

[0009] The traction beam is composed of a first traction beam web and a second traction beam web, which are vertically arranged and parallel to each other, and the length direction of the two webs is the same as the length direction of the railway transport car, and a central sleeve is arranged at the central part between the two webs, and one end of each web is connected to the middle part of the rear end beam web perpendicularly;

[0010] The sleeper beam web is composed of two groups, which are parallel to each other; each group of sleeper beam web includes two webs, which are connected to one side of the first traction beam web and one side of the second traction beam web perpendicularly respectively; the central axis of the two groups of sleeper beam web coincides with the central axis of the central sleeve;

[0011] The lower cover plate assembly is located below the traction beam assembly and the bolster beam web, and comprises a middle part, a first extension part, a second extension part, a first side wing part and a second side wing part; the middle part is in a flat plate structure, and an upper center disc connecting hole is arranged at a central position of the middle part, a central axis of the upper center disc connecting hole coincides with a central axis of the central sleeve; the first extension part and the second extension part are arranged at opposite ends of the middle part respectively; the first extension part is in a bent structure, and a bent oval hole is formed between the first extension part and the middle part; an upper surface of one end of the first extension part close to the middle part is substantially coplanar with an upper surface of the middle part, and an upper surface of the other end is higher than the upper surface of the middle part; the second extension part is two parallel strip-shaped plates, and the second extension part is substantially coplanar with the middle part; one end of the first extension part away from the middle part is connected with the rear end beam web; the first extension part, the middle part and the second extension part are connected with the traction beam assembly; the first side wing part and the second side wing part are symmetrically arranged at two sides of the middle part respectively, and both are curved surface structures, and upper surfaces of the two are both higher than the upper surface of the middle part; and the two are connected with the bolster beam web respectively. The end chassis can be applied to a lengthened railway transport vehicle, and on the basis of stable structure, the self weight can be reduced.

[0012] In the utility model, the rear end beam web can be provided with a hole, which can be a rectangular hole or an oval hole, and can be used as a weight-reducing hole and for stepping by personnel during operation. In the use state, the length direction of the rear end beam web is the same as the width direction of the railway transport vehicle. The bolster beam web is provided with a hole, which can be an oval hole and can be used as a weight-reducing hole. The bottom surface shape of the bolster beam web matches the upper surface shape of the first side wing part and the second side wing part, which is beneficial to connection and structural stability. The top surface of the bolster beam web is horizontally arranged. The bottom surface shape of the traction beam assembly matches the upper surface shape of the first extension part, the middle part and the second extension part, which is beneficial to connection and structural stability. The top surface of the traction beam assembly is horizontally arranged.

[0013] In the utility model, the lower cover plate is located below the traction beam assembly and the sleeper web. The lower cover plate is a symmetrical structure and has a symmetrical surface, which coincides with the central surface of the traction beam assembly perpendicular to the width direction. Two ends of the middle part are respectively provided with a first U-shaped opening and a second U-shaped opening, and the first U-shaped opening and the first extension part form a bent elliptical hole. The width of the second U-shaped opening is smaller than the width of the first U-shaped opening. The width of the end of the first extension part away from the middle part is greater than the width of the middle part, and the width of the end of the first extension part connected with the middle part is basically the same as the width of the end of the middle part. The distance between the two strip plates of the second extension part is greater than the width of the second U-shaped opening. The two strip plates are connected with the first traction beam web and the second traction beam web respectively. The width of one end of the first side wing part close to the middle part is greater than the width of the other end, and the width of one end of the second side wing part close to the middle part is greater than the width of the other end. The thickness of the first side wing part and the second side wing part is basically the same as the thickness of the middle part. With the upper surface of the middle part as a horizontal plane, the upper surface of the first side wing part can be regarded as gradually extending outward and upward from the upper surface of the middle part to form a convex shape, and the upper surface of the part of the first side wing part away from the middle part is basically parallel to the upper surface of the middle part. The first side wing part and the second side wing part are symmetrically arranged, and their upper surfaces are connected with the bottom surface of the sleeper web. In some embodiments, the first side wing part, the middle part and the second side wing part are integrally formed.

[0014] According to the utility model, the end frame of the railway transport vehicle, preferably, further include longitudinal beam, it includes first longitudinal beam and second longitudinal beam, two ends of two are connected with one of the sleeper web and the rear end beam web vertical connection respectively, and symmetrically distribute in both sides of the traction beam assembly. The first longitudinal beam and the second longitudinal beam are parallel to each other. This is conducive to the stability of the structure of the end frame, and reduces the dead weight.

[0015] According to one embodiment of the utility model, one end of the first longitudinal beam is connected with the middle part of one of the sleeper webs vertically, and the other end is connected with the rear end beam web vertically. One end of the second longitudinal beam is connected with the middle part of another sleeper web vertically, and the other end is connected with the rear end beam web vertically.

[0016] According to the utility model discloses a railway transport car's end chassis, preferably, still include crossbeam, it includes first crossbeam and second crossbeam, both one end respectively with the lateral surface of first traction beam web and the lateral surface of second traction beam web vertical connection, and far away from the rear end beam composition, the crossbeam with the pillow beam web each other parallel. This is favorable to the structure of end chassis's stable, reduce dead weight. The central axis of first crossbeam and second crossbeam coincides. According to one embodiment of the utility model, one end of first crossbeam is connected perpendicularly to the lateral surface of first traction beam web, and the other end is connected perpendicularly to the first end side beam (not shown in the utility model) of end side beam composition. One end of second crossbeam is connected perpendicularly to the lateral surface of second traction beam web, and the other end is connected perpendicularly to the second end side beam (not shown in the utility model) of end side beam composition.

[0017] According to the utility model discloses a railway transport car's end chassis, preferably, still include floor, it is connected with traction beam composition, crossbeam, longitudinal beam and pillow beam web respectively and is located above them, the floor is connected with rear end beam web still. Can be connected through welding. This is favorable to the structure of end chassis's stable and the setting of floor protection component below floor.

[0018] According to the utility model discloses a railway transport car's end chassis, preferably, still include impact seat and rear from board seat, the impact seat is located traction beam composition far away from the end of rear end beam composition, it is connected with first traction beam web, second traction beam web and floor respectively, the rear from board seat is connected with traction beam composition and floor respectively and is close to center sleeve. In the utility model, impact seat, rear from board seat can adopt those known in the art.

[0019] According to the utility model discloses a railway transport car's end chassis, preferably, the rear end beam composition still includes rear end beam muscle board, the rear end beam muscle board is multiple, multiple rear end beam muscle board is connected perpendicularly with rear end beam web respectively and is located above floor. This is favorable to improve the strength of rear end beam web.

[0020] In the utility model, multiple rear end beam muscle board is arranged mutually parallel and is located on the same side of rear end beam web. The height of rear end beam muscle board is about one half of the height of rear end beam web.

[0021] The utility model discloses a railway transport car's end chassis, preferably, the traction beam group still includes first traction beam baffle, second traction beam baffle and third traction beam baffle for fixing the center sleeve, the first traction beam baffle, second traction beam baffle and third traction beam baffle are two, two first traction beam baffles are parallel to each other, and the both ends of two are connected with first traction beam web and second traction beam web respectively, one end of one second traction beam baffle is connected with first traction beam web and center sleeve respectively, and the both ends of another second traction beam baffle are connected with second traction beam web and center sleeve respectively, one end of one third traction beam baffle is connected with one first traction beam baffle and center sleeve respectively, and the both ends of another third traction beam baffle are connected with another first traction beam baffle and center sleeve respectively, and this is favorable to the center sleeve fixed. Two first traction beam baffles are symmetrically arranged, two second traction beam baffles are symmetrically arranged, and two third traction beam baffles are symmetrically arranged.

[0022] The utility model discloses a railway transport car's end chassis, preferably, the first traction beam web and the second traction beam web all are provided with traction beam muscle board and traction beam wear plate, the traction beam muscle board is multiple, and it is perpendicular to be connected with the outside of first traction beam web and the outside of second traction beam web respectively, the traction beam wear plate is set up on the inside of first traction beam web and the inside of second traction beam web in the way of sticking, the traction beam muscle board and the traction beam wear plate all are away from the rear end beam group. This is favorable to the strength of first traction beam web and second traction beam web, reduces the abrasion.

[0023] In the utility model, the outside of first traction beam web refers to the side of first traction beam web away from second traction beam web, and the outside of second traction beam web is defined similarly. The inside of first traction beam web refers to the back of outside, and the inside of second traction beam web is defined similarly.

[0024] The utility model discloses a railway transport car's end chassis, preferably, the first traction beam web and the second traction beam web all are provided with weight reduction hole. This is favorable to reduce the dead weight. The weight reduction hole is multiple, and the weight reduction hole is set up in the end of traction beam web away from rear end beam group and in the middle of traction beam web. These weight reduction holes can be oval holes.

[0025] On the other hand, the utility model also provides a railway transport car, including multiple cars, and at least one car includes two groups of railway transport car's end chassis as described above, and the two groups of end chassis are symmetrically arranged with the center surface of the railway transport car perpendicular to the length direction.

[0026] According to one embodiment of the utility model, a railway transport vehicle comprises multiple carriages, each of which comprises two groups of end chassis of the railway transport vehicle as described above. The connection between most components of the end chassis can be achieved by welding, and the end chassis is made of steel.

[0027] The end chassis of the utility model is improved on the basis of the existing structure, and can be applied to the lengthened railway transport vehicle of large-size double-layer containers, which is beneficial to controlling the self weight of the vehicle and ensuring the load capacity of the vehicle on the basis of ensuring the use performance. According to the preferred technical scheme of the utility model, the end chassis with stable structure and low self weight is obtained by the combined use of the lower cover plate assembly with integral structure, the rear end beam web with flat plate structure, the bolster beam web and the traction beam. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is an overall schematic view (from oblique lower side to oblique upper side) of the end chassis of the railway transport vehicle of the utility model.

[0029] Figure 2 It is a front view schematic view of the end chassis of the railway transport vehicle of the utility model.

[0030] Figure 3 It is a top view schematic view of the end chassis of the railway transport vehicle of the utility model.

[0031] Figure 4 It is an overall schematic view of the rear end beam assembly of the utility model.

[0032] Figure 5 It is a left view schematic view of the rear end beam assembly of the utility model.

[0033] Figure 6 It is an overall schematic view of the traction beam assembly of the utility model.

[0034] Figure 7 It is a top view schematic view of Figure 6 .

[0035] Figure 8 It is an overall schematic view of the lower cover plate assembly of the utility model.

[0036] Figure 9 It is a top view schematic view of Figure 8 .

[0037] Figure 10 It is a front view schematic view of Figure 8 .

[0038] Figure 11 It is a left view schematic view of Figure 8 .

[0039] The reference signs are explained as follows:

[0040] 11 - lower cover plate assembly, 111 - middle part, 1111 - upper bolster hole, 112 - first extension part, 1121 - bent oval hole, 1122 - closed end, 113 - second extension part, 114 - first side wing part, 115 - second side wing part, 12 - rear end beam assembly, 121 - rear end beam web, 122 - rear end beam flange, 123 - rear end beam cross plate, 13 - traction beam assembly, 1311 - first traction beam web, 1312 - second traction beam web, 132 - center sleeve, 1331 - first traction beam partition, 1332 - second traction beam partition, 1333 - third traction beam partition, 134 - traction beam flange, 135 - traction beam wear plate, 136 - end connecting plate, 14 - bolster web, 15 - longitudinal beam, 16 - cross beam, 17 - floor, 18 - impact seat, 19 - rear from plate seat, 20 - upper bolster, 30 - traction seat. DETAILED DESCRIPTION

[0041] The utility model will be further explained in connection with specific embodiments, but the protection scope of the utility model is not limited to this.

[0042] Figure 1

[0043] Figure 2 It is the overall schematic view of the end chassis of the railway transport vehicle of the utility model (from oblique lower side to oblique upper side). Figure 3 It is the front view schematic view of the end chassis of the railway transport vehicle of the utility model. Figure 4 It is the overhead schematic view of the end chassis of the railway transport vehicle of the utility model. Figure 5 It is the overall schematic view of the rear end beam assembly of the utility model. Figure 6 It is the left view schematic view of the rear end beam assembly of the utility model. Figure 7 It is the overall schematic view of the traction beam assembly of the utility model. Figure 6 It is the overhead schematic view of the traction beam assembly of the utility model. Figure 8 It is the overall schematic view of the lower cover plate assembly of the utility model. Figure 9 It is the overhead schematic view of the lower cover plate assembly of the utility model. Figure 8 It is the front view schematic view of the lower cover plate assembly of the utility model. Figure 10 It is the overhead schematic view of the lower cover plate assembly of the utility model. Figure 8 It is the front view schematic view of the lower cover plate assembly of the utility model. Figure 11 It is the left view schematic view of the lower cover plate assembly of the utility model. Figure 8 It is the left view schematic view of the lower cover plate assembly of the utility model. Figure 1 to Figure 11 It is the left view schematic view of the lower cover plate assembly of the utility model.

[0044] As Figure 1As shown, the end chassis of the railway transport vehicle provided by the embodiment comprises a lower cover plate assembly 11, a rear end beam assembly 12, a traction beam assembly 13, a bolster web 14, a longitudinal beam 15, a cross beam 16, a floor 17, an impact seat 18 and a rear panel seat 19. An upper center disc 20 and a traction seat 30 can also be included.

[0045] As shown in Figure 2 , Figure 4 , Figure 5 and Figure 6 , the rear end beam assembly 12 comprises a rear end beam web 121, a rear end beam web plate 122 and a rear end beam cross plate 123. The rear end beam web 121 is flat and vertically arranged. The length direction of the rear end beam web 12 is the same as the width direction of the railway transport vehicle. The bottom of the rear end beam web 12 is provided with vertical protrusions on both sides, which facilitate cooperation with other components. The rear end beam web 12 can be provided with multiple rectangular holes, which can be used as weight reduction holes or for personnel to step on when operating. The rear end beam web plate 122 is multiple pieces, which are parallel to each other and vertically connected to the rear end beam web 121 respectively. The length of the rear end beam web plate 122 is less than or equal to one-half of the width of the rear end beam web 121, which is used to strengthen the strength of the rear end beam web 121. The rear end beam web plate 122 is a vertically arranged rectangular plate on the same side of the rear end beam web 121. The rear end beam web plate 122 is located above the floor 17. The rear end beam cross plate 123 is horizontally arranged, and its length is the same as the width of the rear end beam web 121. It is arranged on the top of the rear end beam web 121, and the cross sections of the two are basically inverted L-shaped. The bottom surface of the rear end beam cross plate 123 is connected to the top end of the rear end beam web plate 122, and the width of the two is the same.

[0046] As shown in Figure 7 , Figure 4 , the traction beam assembly 13 comprises a first traction beam web 1311 and a second traction beam web 1312, a center sleeve 132, a first traction beam partition plate 1331, a second traction beam partition plate 1332, a third traction beam partition plate 1333, a traction beam web plate 134, a traction beam wear plate 135 and an end connecting plate 136.

[0047] Referring to Figure 6 and Figure 6 , the first traction beam web 1311 and the second traction beam web 1312 form a traction beam web. The first traction beam web 1311 and the second traction beam web 1312 are vertically arranged and parallel to each other, and the length direction of the two is the same as the length direction of the railway transport vehicle. A center sleeve 132 is arranged at the center position between the two, and one end of each of the two is vertically connected to the middle position of the rear end beam web 121. The first traction beam web 1311 and the second traction beam web 1312 are each provided with multiple weight reduction holes, which can be elliptical holes. The weight reduction holes are mainly distributed at one end of the traction beam web away from the rear end beam assembly 12, and at the middle position of the traction beam web.

[0048] like Figure 8 and Figure 1 As shown, the bottom surface shapes of the first traction beam web 1311 and the second traction beam web 1312 match the shapes of the upper surfaces of the first extension 112, the middle part 111 and the second extension 113 of the lower cover plate assembly 11.

[0049] The traction beam partition includes a first traction beam partition 1331, a second traction beam partition 1332, and a third traction beam partition 1333, used to fix the center sleeve 132. There are two first traction beam partitions 1331, arranged parallel to each other. One end of each partition is perpendicularly connected to the web of the first traction beam 1311, and the other end is perpendicularly connected to the web of the second traction beam 1312. There are also two second traction beam partitions 1332. One second traction beam partition 1332 has both ends connected to the web of the first traction beam 1311 and the center sleeve 132, respectively, while the other second traction beam partition 1332 has both ends connected to the web of the second traction beam 1312 and the center sleeve 132, respectively. Both second traction beam partitions 1332 are parallel to the first traction beam partitions 1331. The third traction beam partition 1333 consists of two pieces. One of the third traction beam partitions 1333 is connected at both ends to the central sleeve 132 and one of the first traction beam partitions 1331, respectively. The other third traction beam partition 1333 is connected at both ends to the central sleeve 132 and another first traction beam partition 1331, respectively.

[0050] Multiple traction beam stiffeners 134 are used to enhance the strength of the traction beam web. Multiple traction beam stiffeners 134, for example, three, are arranged parallel to each other on the outer surface of the first traction beam web 1311. Similarly, multiple traction beam stiffeners 134, for example, three, are arranged parallel to each other on the outer surface of the second traction beam web 1312. The traction beam stiffeners 134 on the first traction beam web 1311 and the traction beam stiffeners 134 on the second traction beam web 1312 are arranged symmetrically. The traction beam stiffeners 134 are located away from the rear beam assembly 12.

[0051] Two wear plates 135 are provided on the inner side of the first traction beam web 1311 and the inner side of the second traction beam web 1312 respectively, in a fitted manner, to reduce wear between the buffer in the buffer device and the traction beam web. The traction beam wear plates 135 are located away from the rear beam assembly 12.

[0052] The end connecting plates 136 are two pieces, both of which have an outer profile substantially in the shape of an inverted L, one of which is connected perpendicularly to the outer side of the first traction beam web plate 1311, and the other of which is connected perpendicularly to the outer side of the second traction beam web plate 1312. The end connecting plates 136 are arranged close to the end of the traction beam web plate, and away from the rear end beam assembly 12. The end connecting plates 136 are used to connect other components (such as end side beam assemblies, not shown in the utility model).

[0053] As shown in Figure 3 and Figure 1 , the pillow beam web plates 14 are two groups, and the two groups of pillow beam web plates 14 are arranged in parallel. Each group of pillow beam web plates 14 includes two web plates, which are connected perpendicularly to the outer side of the first traction beam web plate 1331 and the outer side of the second traction beam web plate 1332 respectively, and the center of the length direction of the two web plates coincides. The center axis of the two groups of pillow beam web plates 14 coincides with the center axis of the center sleeve 132. The shape of the bottom surface of the pillow beam web plate 14 matches the shape of the upper surface of the first side wing part 114 and the second side wing part 115 of the lower cover plate assembly 11. The pillow beam web plate 14 can be provided with a hole, which is an oval hole and can be used as a weight-reducing hole.

[0054] As shown in Figure 3 , Figure 8 to Figure 11 , Figure 1 , the lower cover plate assembly 11 has a symmetrical structure and a symmetrical surface, and the symmetrical surface coincides with the center surface of the traction beam assembly 13 perpendicular to the width direction. The lower cover plate assembly 11 is located below the traction beam assembly 13 and the pillow beam web plate 14. The lower cover plate assembly 11 includes a middle part 111, a first extension part 112, a second extension part 113, a first side wing part 114, and a second side wing part 115. The middle part 111 has a flat plate structure, and the center part is provided with an upper center disc connecting hole 1111, which is a circular hole and is used to install the upper center disc 20. The center axis of the upper center disc connecting hole 1111 coincides with the center axis of the center sleeve 132. The opposite ends of the middle part 111 are respectively provided with a first U-shaped opening and a second U-shaped opening, and the width of the first U-shaped opening is greater than that of the second U-shaped opening.

[0055] The first extension 112 and the second extension 113 are respectively arranged at two ends of the middle part 111 and opposite to each other, and can be respectively welded with the two ends of the middle part 111. The symmetry plane passes through the geometric centers of the first extension 112, the middle part 111 and the second extension 113. The first extension 112 is in a bent structure, and the angle formed by the bending is an obtuse angle, which is greater than 120° and less than 180°. The first extension 112 and the middle part 111 form a bent elliptical hole 1121, and specifically, the bent elliptical hole 1121 is formed between the first U-shaped opening arranged at one end of the middle part 111 close to the first extension 112 and the first extension 112. In the use state, the projection of the bent elliptical hole 1121 on the horizontal plane is an elliptical hole. The width of the end of the first extension 112 away from the middle part 111 is greater than the width of the middle part 111. With the upper surface of the middle part 111 as the horizontal plane, the upper surface of the end of the first extension 112 close to the middle part 111 is substantially coplanar with the upper surface of the middle part 111, and the upper surface of the other end is higher than the upper surface of the middle part 111. In this embodiment, the first extension 112 specifically includes two bent and parallel bent plate bodies, and the ends of the two bent plate bodies away from the middle part 111 respectively extend inward and outward along the width direction of the first extension 112, so as to form a closed end 1122, and the width of the closed end 1122 is greater than the width of the middle part 111. That is, the bent elliptical hole 1121 is formed between the two bent plate bodies, the closed end 1122 and the first U-shaped opening of the middle part 111.

[0056] The second extension 113 is two parallel strip-shaped plates, and the two strip-shaped plates are symmetrically arranged with the symmetry plane as the symmetry plane. The second extension 113 and the middle part 111 are substantially coplanar. The width of the second U-shaped opening arranged at one end of the middle part 111 close to the second extension 113 is less than the vertical distance between the two strip-shaped plates. The first extension 112 and the second extension 113 are respectively connected with the bottom of the traction beam group 13. The end of the first extension 112 away from the middle part 111 is connected with the rear end beam web plate 121.

[0057] The first side wing part 114 and the second side wing part 115 are respectively symmetrically arranged at two sides of the middle part 111, and both are curved surface structures, that is, both are curved surface plates. The upper surfaces of the two are higher than the upper surface of the middle part 111, and the upper surfaces of the two are respectively connected with the bottom of the pillow beam web plate 14. The width of the end of the first side wing part 114 connected with the middle part 111 is greater than the width of the end of the first side wing part 114 away from the middle part 111. The first side wing part 114 and the second side wing part 115 can be respectively curved surface structures formed by gradually extending and gradually protruding from the middle part 111 to two sides. In this embodiment, the first side wing part 114, the middle part 111 and the second side wing part 115 are integrally formed structures, and can be formed by die pressing.

[0058] As shown in Figure 3 and Figure 1 to Figure 3 , the longitudinal beam 15 includes a first longitudinal beam and a second longitudinal beam, the two ends of the first longitudinal beam are respectively connected perpendicularly to one of the web plates in one of the groups of web plates 14 and the rear end beam web plate 121, and the two ends of the second longitudinal beam are respectively connected perpendicularly to another of the web plates in one of the groups of web plates 14 and the rear end beam web plate 121. The first longitudinal beam and the second longitudinal beam are symmetrically distributed on both sides of the traction beam group 13. The top surface of the longitudinal beam 15 is connected to the bottom surface of the floor 17.

[0059] As shown in Figure 1 to Figure 3 , the cross beam 16 includes a first cross beam and a second cross beam, one end of the first cross beam is connected perpendicularly to the outer side surface of the first traction beam web plate 1311, one end of the second cross beam is connected perpendicularly to the outer side surface of the second traction beam web plate 1312, the central axes of the first cross beam and the second cross beam coincide, and the cross beam 16 is away from the rear end beam group 12. The cross beam 16 is parallel to the web plate 14. The top surface of the cross beam 16 is connected to the bottom surface of the floor 17.

[0060] As shown in Figure 1 , the floor 17 is connected to and above the traction beam group 13, the cross beam 16, the longitudinal beam 15 and the web plate 14, respectively. The traction seat 30 is arranged at the end of the floor 17 and is away from the rear end beam group 12.

[0061] As shown in Figure 2 and Figure 1 , the impact seat 18 is arranged at the end of the traction beam group 13 away from the rear end beam group 12, and is connected to the first traction beam web plate 1311, the second traction beam web plate 1312 and the floor 17, respectively. The specific structure of the impact seat 18 is not particularly limited and can be those known in the art.

[0062] As shown in Figure 3 and Example 2 , the rear panel seat 19 is connected to the traction beam group 13 and the floor 17, respectively, and is close to the center sleeve 132. The specific structure of the rear panel seat 19 is not particularly limited and can be those known in the art.

[0063] ​

[0064] The embodiment provides a railway transport vehicle, which includes multiple carriages, each of which includes two groups of end chassis of the railway transport vehicle described in embodiment 1. The two groups of end chassis are symmetrically arranged with respect to the central plane of the railway transport vehicle perpendicular to the length direction.

[0065] The utility model is not limited to the above-mentioned embodiment, any deformation, improvement, replacement that the person skilled in the art can think of without departing from the essential content of the utility model falls into the range of the utility model.

Claims

1. An end frame of a railway transport vehicle, characterized in that, include: The rear end beam consists of a rear end beam web, which is flat and vertically arranged. The traction beam consists of a first traction beam web and a second traction beam web, which are vertically arranged and parallel to each other. Their length directions are the same as the length direction of the railway transport vehicle. A central sleeve is provided at the center between the two, and one end of each is perpendicularly connected to the middle position of the rear beam web. The bolster beam web consists of two sets, which are parallel to each other. Each set of bolster beam webs includes two webs, which are perpendicularly connected to one side of the first traction beam web and one side of the second traction beam web, respectively. The central axis of the two sets of bolster beam webs coincides with the central axis of the central sleeve. The lower cover plate, located below the traction beam assembly and the bolster beam web, includes a middle section, a first extension, a second extension, a first side wing, and a second side wing. The middle section is a flat plate with a central connecting hole for an upper center plate, the central axis of which coincides with the central axis of the central sleeve. The first and second extensions are located at opposite ends of the middle section. The first extension has a bent structure, forming a bent elliptical hole with the middle section. The upper surface of the first extension near the middle section is substantially coplanar with the upper surface of the middle section, while the upper surface of the other end is higher than the upper surface of the middle section. The second extension consists of two parallel strip plates, substantially coplanar with the middle section. The end of the first extension away from the middle section is connected to the rear beam web. The first extension, the middle section, and the second extension are all connected to the traction beam assembly. The first and second side wing are symmetrically located on both sides of the middle section, both being curved surfaces with upper surfaces higher than the upper surface of the middle section, and both connected to the bolster beam web.

2. The end frame of the railway transport vehicle according to claim 1, characterized in that, It also includes longitudinal beams, which include a first longitudinal beam and a second longitudinal beam. The two ends of the first and second longitudinal beams are respectively perpendicularly connected to one of the sets of the pillow beam webs and the rear beam webs, and are symmetrically distributed on both sides of the traction beam.

3. The end frame of the railway transport vehicle according to claim 2, characterized in that, It also includes a crossbeam, which comprises a first crossbeam and a second crossbeam, one end of which is perpendicularly connected to the outer side of the web of the first traction beam and the outer side of the web of the second traction beam, respectively, and is located away from the rear end beam; the crossbeam is parallel to the web of the bolster beam.

4. The end frame of the railway transport vehicle according to claim 3, characterized in that, It also includes a floor, which is connected to and located above the web of the traction beam assembly, crossbeam, longitudinal beam and bolster beam respectively; the floor is also connected to the web of the rear beam.

5. The end frame of the railway transport vehicle according to claim 4, characterized in that, It also includes an impact seat and a rear follower plate seat; the impact seat is located at the end of the traction beam assembly away from the rear end beam assembly, and is connected to the web of the first traction beam, the web of the second traction beam, and the floor respectively; the rear follower plate seat is connected to the traction beam assembly and the floor respectively, and is close to the central sleeve.

6. The end frame of the railway transport vehicle according to claim 4, characterized in that, The rear beam assembly also includes rear beam stiffening plates; the rear beam stiffening plates are multiple pieces, each piece being perpendicularly connected to the web of the rear beam and located above the floor.

7. The end frame of the railway transport vehicle according to claim 4, characterized in that, The traction beam assembly further includes a first traction beam partition, a second traction beam partition, and a third traction beam partition for fixing the central sleeve; each of the first, second, and third traction beam partitions consists of two pieces; the two first traction beam partitions are parallel to each other, and their ends are respectively connected to the web of the first traction beam and the web of the second traction beam; one of the second traction beam partitions has its ends connected to the web of the first traction beam and the central sleeve, and the other of the second traction beam partitions has its ends connected to the web of the second traction beam and the central sleeve; one of the third traction beam partitions has its ends connected to one of the first traction beam partitions and the central sleeve, and the other of the third traction beam partitions has its ends connected to the other first traction beam partition and the central sleeve.

8. The end frame of the railway transport vehicle according to claim 1, characterized in that, Both the first traction beam web and the second traction beam web are provided with traction beam stiffening plates and traction beam wear plates; there are multiple traction beam stiffening plates, which are perpendicularly connected to the outer side of the first traction beam web and the outer side of the second traction beam web, respectively; the traction beam wear plates are attached to the inner side of the first traction beam web and the inner side of the second traction beam web in a close-fitting manner; both the traction beam stiffening plates and the traction beam wear plates are located away from the rear end beam.

9. The end frame of the railway transport vehicle according to any one of claims 1 to 8, characterized in that, Both the web of the first traction beam and the web of the second traction beam are provided with weight reduction holes.

10. A railway transport vehicle comprising multiple carriages, characterized in that, At least one carriage includes two sets of end frames of the railway transport vehicle as described in any one of claims 1 to 9; the two sets of end frames are symmetrically arranged with respect to the central plane of the railway transport vehicle perpendicular to its length direction.

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