WO2022120965A1

WO2022120965A1 - Bogie cabin for rail vehicle, and bogie system

Info

Publication number: WO2022120965A1
Application number: PCT/CN2020/138931
Authority: WO
Inventors: 楚伯刚; 秦成伟; 卢娜; 张文朝; 吕少鹏; 宋永胜
Original assignee: 中车唐山机车车辆有限公司
Priority date: 2020-12-09
Filing date: 2020-12-24
Publication date: 2022-06-16
Also published as: CN112519821B; CN112519821A

Abstract

Provided are a bogie cabin for a rail vehicle, and a bogie system. The bogie cabin comprises a cabin body assembly, wherein the cabin body assembly comprises a main cabin plate and two side cabin plates, the two side cabin plates are fixed on two sides of the main cabin plate, and a cavity for accommodating a bogie of the rail vehicle is defined by the two side cabin plates and the main cabin plate; an inner side of the main cabin plate is used for being fixed to the front or the rear of the bogie, and the front or the rear of the bogie is separated from the outside; and inner sides of the two side cabin plates are used for being fixed to a side of the bogie, and the side of the bogie is separated from the outside. The bogie system comprises the bogie cabin. According to the embodiments of the present application, the technical problems of a large amount of noise and a large aerodynamic resistance of a bogie system are solved.

Description

A bogie cabin and bogie system for rail vehicles

technical field

The present application relates to the technical field of rail vehicles, and in particular, to a bogie cabin and a bogie system for rail vehicles.

Background technique

The existing bogie is noisy and interferes greatly with the outside world. Aerodynamic resistance is one of the key indicators affecting the speed increase of high-speed trains, and good resistance characteristics are also an important symbol of energy saving and environmental protection for trains. The main sources of aerodynamic resistance of high-speed trains include: surface friction, pressure difference resistance between head and tail cars, bogie, pantograph system, workshop clearance, etc. Among them, the aerodynamic resistance of the bogie area and the equipment under the train can reach 22% to 53% of the total aerodynamic resistance of the train. Therefore, reducing the aerodynamic drag at the bottom of the train is an important issue for aerodynamic drag reduction of high-speed trains.

Therefore, the noise and aerodynamic resistance of the bogie are relatively large, which are technical problems that those skilled in the art urgently need to solve.

The above information disclosed in this Background section is only for enhancement of understanding of the background of the application and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art.

SUMMARY OF THE INVENTION

In the embodiments of the present application, a bogie cabin and a bogie system for rail vehicles are provided to solve the technical problems of high noise and aerodynamic resistance of the bogie.

An embodiment of the present application provides a bogie cabin for a rail vehicle, including a cabin body assembly, wherein the cabin body assembly includes:

main deck;

two side decks, the two side decks are fixed on both sides of the main deck, and together with the main deck, form a cavity for accommodating a rail vehicle bogie;

Wherein, the inner side of the main deck is used for fixing with the front or the rear of the bogie to separate the front or rear of the bogie from the outside world; the inner sides of the two side decks are used for fixing with the side of the bogie , which separates the side of the bogie from the outside world.

The embodiments of the present application also provide the following technical solutions:

A bogie system, comprising:

bogie;

In the above bogie cabin, the inner side of the bogie cabin is connected to the bogie, a first preset interval is maintained between the main deck and the bogie, and the space between the side deck and the bogie is maintain the second preset interval;

The main deck is a composite main deck, and the side deck is a composite side deck.

Due to the adoption of the above technical solutions, the embodiments of the present application have the following technical effects:

The cabin assembly includes a main deck and two side decks, and the two side decks are fixed on both sides of the main deck. In this way, the main deck and the two side decks form a semi-enclosed structure forming a cavity for accommodating the rail vehicle bogie. When the bogie cabin and the bogie are installed, the inner side of the main deck is fixed to the front or rear of the bogie, so that the front or rear of the bogie is separated from the outside world, and the inner sides of the two side decks are fixed to the side of the bogie. , which separates the side of the bogie from the outside world. In this way, the cabin assembly is connected to the bogie, and is covered in front, rear, and sides of the bogie. The bogie cabin blocks the noise in the bogie cabin from propagating outward, and has the effect of reducing the far-field noise of the train. At the same time, the air flow is guided to flow along the outer surface of the bogie cabin, reducing the airflow entering the interior of the bogie cabin, which can reduce the running air resistance in the bogie area, and play a drag reduction effect, thereby improving the aerodynamic performance.

Description of drawings

The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the attached image:

1 is a schematic diagram of the installation of a bogie compartment and a bogie of a rail vehicle according to an embodiment of the application;

Fig. 2 is the schematic diagram of the bogie compartment shown in Fig. 1;

3 is an exploded schematic view of the main deck and side decks of the bogie compartment shown in FIG. 2;

FIG. 4 is an exploded view of the connection structure of the main deck and the side deck shown in FIG. 3;

Fig. 5 is the assembly diagram of the connection structure of the main deck and the side deck shown in Fig. 4;

Fig. 6 is the schematic diagram of the anti-rotation seat of the bogie compartment shown in Fig. 3;

Fig. 7 is a partial enlarged view of the bogie compartment shown in Fig. 2;

Fig. 8 is a partial enlarged view of the bogie compartment shown in Fig. 7;

9 is an exploded schematic view of the side deck and the first connecting frame of the bogie compartment shown in FIG. 2;

Fig. 10 is an exploded view of the connection structure of the side deck shown in Fig. 8 and the first connecting frame and the second connecting frame;

Figure 11 is a schematic exploded view of the connection between the side deck connecting rod of the first connecting frame and the primary spring fixing seat of the bogie;

Fig. 12 is the connection exploded schematic diagram of the brake hanger connecting rod of the second connecting frame and the brake unit hanger of the bogie;

13 is an exploded schematic diagram of the connection of the cross beam connecting rod of the second connecting frame and the cross beam of the bogie;

Figure 14 is a perspective view of the first connecting frame of the bogie compartment shown in Figure 2;

Figure 15 is a perspective view of the second connecting frame of the bogie compartment shown in Figure 2;

16 is a perspective view of a beam provided by an embodiment of the application;

FIG. 17 is a perspective view of a beam unit provided by an embodiment of the application;

18 is a cross-sectional view of a beam provided by an embodiment of the application;

Fig. 19 is a partial enlarged view of A region in Fig. 18;

FIG. 20 is an exploded view of the connection of two beam monomers according to an embodiment of the present application;

21 is a perspective view of a side beam provided by an embodiment of the application;

22 is a front view of a side beam provided by an embodiment of the application;

Fig. 23 is another front view of the side beam provided by the embodiment of the application;

FIG. 24 is a schematic diagram of the side beam bearing the first vertical load provided in this embodiment;

FIG. 25 is a schematic diagram of the side beam bearing the second vertical load provided in this embodiment;

26 is a schematic structural diagram of a middle beam, a side beam and a secondary suspension mounting seat in a bogie provided by an embodiment of the application;

Figure 27 is an exploded view of the middle beam, the side beam and the secondary suspension mounting seat of the bogie provided by the embodiment of the application;

28 is a top-view perspective view of a second-series suspension mount provided by an embodiment of the application;

FIG. 29 is a bottom-view perspective view of the second-series suspension mount provided by the embodiment of the application;

FIG. 30 is a partial cross-sectional view of the assembly of the secondary suspension mounting seat, the side beam and the cross beam provided by the embodiment of the application;

31 is a schematic structural diagram of a bogie provided with a secondary suspension device according to an embodiment of the application;

FIG. 32 is a schematic structural diagram of a secondary suspension mounting base connected to a traction motor through a motor balance rod provided by an embodiment of the application;

33 is a schematic structural diagram of a bogie provided by an embodiment of the application;

34 is a schematic structural diagram of a wheelset in a bogie provided by an embodiment of the application;

FIG. 35 is a partial schematic view of a bogie provided with a safety stop device according to an embodiment of the application;

36 is a cross-sectional view of a bogie provided with a safety stop device according to an embodiment of the application;

37 is a schematic structural diagram of a safety stop device provided by an embodiment of the application;

38 is an exploded view of the assembly of the safety stop device, the primary suspension device and the axle box provided by the embodiment of the application;

39 is a perspective view of a brake hanger in a bogie provided by an embodiment of the application;

40 is a schematic diagram of the connection between the brake hanger and the beam provided by the embodiment of the application;

Figure 41 is an exploded view of the connection between the brake hanger and the beam provided by the embodiment of the application;

42 is a cross-sectional view of the connection between the brake hanger and the beam provided by the embodiment of the application;

43 is a schematic perspective view of the connection between the beam and the vertical shock absorber according to the embodiment of the application;

Fig. 44 is the enlarged schematic diagram of B region in Fig. 43;

Figure 45 is an exploded schematic view of the connection between the beam and the vertical shock absorber provided by the embodiment of the application;

FIG. 46 is a schematic diagram of the arrangement position of the vertical shock absorber on the bogie provided by the embodiment of the application;

47 is a perspective view of a non-power bogie provided by an embodiment of the application;

48 is a perspective view of a power bogie provided by an embodiment of the application;

49 is a perspective view of an anti-roll torsion bar provided by an embodiment of the application;

FIG. 50 is a schematic structural diagram of a beam connected to an axle box through a single tie rod according to an embodiment of the application.

Detailed ways

In order to make the technical solutions and advantages of the embodiments of the present application clearer, the exemplary embodiments of the present application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, and Not all embodiments are exhaustive. It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict.

Example 1

FIG. 1 is a schematic diagram of installation of a bogie compartment and a bogie of a rail vehicle according to an embodiment of the application, and FIG. 2 is a schematic diagram of the bogie compartment shown in FIG. 1 . As shown in FIGS. 1 and 2 , the bogie cabin 102 for a rail vehicle according to the embodiment of the present application includes a cabin body assembly, and the cabin body assembly includes: a main cabin panel 1021 and two side cabin panels 1022 . Two side decks 1022 are fixed on both sides of the main deck 1021, and form a cavity with the main deck 1021 for accommodating the rail vehicle bogie 101;

Wherein, the inner side of the main deck is fixed to the front or rear of the bogie to separate the front or rear of the bogie from the outside world; the inner sides of the two side decks are fixed to the side of the bogie to separate the bogie side is separated from the outside world.

The bogie cabin for a rail vehicle according to the embodiment of the present application includes a cabin assembly, and the cabin assembly includes a main cabin and two side cabins, and the two side cabins are fixed on both sides of the main cabin. In this way, the main deck and the two side decks form a semi-enclosed structure forming a cavity for accommodating the rail vehicle bogie. When the bogie cabin and the bogie are installed, the inner side of the main deck is fixed to the front or rear of the bogie, so that the front or rear of the bogie is separated from the outside world, and the inner sides of the two side decks are fixed to the side of the bogie. , which separates the side of the bogie from the outside world. In this way, the cabin assembly is connected to the bogie, and is covered in front, rear, and sides of the bogie. The bogie cabin blocks the noise in the bogie cabin from propagating outward, and has the effect of reducing the far-field noise of the train. At the same time, the air flow is guided to flow along the outer surface of the bogie cabin, reducing the airflow entering the interior of the bogie cabin, which can reduce the running air resistance in the bogie area, and play a drag reduction effect, thereby improving the aerodynamic performance. A first preset interval is maintained between the main deck and the bogie, and a second preset interval is maintained between the side deck and the bogie.

In implementation, as shown in FIG. 1 , the main deck 1021 is specifically used to cover the inner edges of the two side beams of the The part between the two side beams.

The bogie as a whole is a structure with a slightly lower middle and higher sides. The main deck covers the lower part of the middle of the bogie, that is, covers the inner edges of the two side members of the bogie frame in the width direction, and covers the parts located between the two side members of the bogie frame in the height direction. That is, the main deck can cover the front or rear of the bogie, which avoids the front or rear of the bogie being exposed and affecting the aerodynamic performance. At the same time, the slightly lower middle part of the main deck also avoids interference with the body of the rail vehicle and the energy-absorbing device.

In implementation, as shown in FIG. 1 , the side deck 1022 is specifically used to cover the side beams of the bogie frame and the sides of the bogie in the width direction, and cover the bogie frame above the height direction when it is fixed to the bogie. The upper surface of the side member of the frame covers the member attached to the side member of the bogie frame downward in the height direction.

The two side decks cover the higher parts on both sides of the bogie respectively. The side deck can cover the front or rear and the side of the side beam of the bogie, which reduces the exposure of the side of the bogie and affects the aerodynamic performance.

In implementation, as shown in FIGS. 1 and 2 , the main deck 1021 is a main deck with a streamlined outer surface, and the side deck 1022 is a side deck with a streamlined outer surface;

Wherein, the outer surface of the main deck and the outer surface of the side deck are used for guiding the airflow to flow along the outer surface of the bogie compartment, so as to reduce the airflow entering the bogie compartment.

The outer surface of the main deck and the outer surface of the side deck are streamlined, which avoids the exposure of the front or rear of the bogie, and reduces the exposed area of the side of the bogie, reducing wind resistance and affecting aerodynamic performance. .

In practice, as shown in FIG. 1 , when the side deck is fixed to the bogie, the side of the side deck away from the main deck covers the braking unit of the bogie.

The braking unit itself is located on the outer side of the middle of the bogie, and the side of the side deck away from the main deck covers the braking unit of the bogie, which reduces the exposed area of the side of the bogie, and has better aerodynamic performance. At the same time, the side deck covers the braking unit, which also isolates the outside world and reduces the noise of the bogie.

In practice, the side deck is also used to guide the airflow entering from the upper end and/or the lower end of the main deck to the braking unit of the bogie, so as to cool the braking unit.

When braking, the braking unit will generate more heat and noise. By designing the structure of the side deck, the airflow entering the upper end and/or the lower end of the main deck is guided to the braking unit of the bogie to cool the braking unit.

In implementation, as shown in FIG. 2 , the bogie cabin further includes a sound-absorbing panel 1023; the sound-absorbing panel 1023 is fixed on the inner side of the main deck, and/or the sound-absorbing panel is fixed on the inner side of the side deck. board 1023;

The main deck is a main deck made of a lightweight composite material, and the side deck is a side deck made of a lightweight composite material. Lightweight composite materials include carbon fiber composite materials, glass fiber composite materials, and the like.

The existence of sound-absorbing panels enables the noise generated by the bogie to be partially absorbed by the sound-absorbing panels, thereby greatly reducing the noise of the bogie. Both the main and side decks are made of lightweight composite materials, and the bogie compartment is lighter in weight.

In implementation, as shown in FIG. 2 , the bogie compartment further includes a first connecting frame 1031, and the first connecting frame includes:

The side deck connecting rod 10311 has one end connected to the inner side of the side deck 1022 through a rubber node, and the other end has a fixed seat interface 10311a;

The main deck connecting rod 10312 has one end connected with the inner side of the main deck 1021 through a rubber joint, and the other end is fixed with the side deck connecting rod 10311;

Wherein, the first series of fixed seat interfaces 10311a of the connecting rod of the side deck are used to connect with the first series of spring fixed seats of the bogie.

The first connecting frame is taken as a whole, one end of the first connecting frame is connected with the first series spring fixing seat of the bogie through the first series fixing seat interface of the connecting rod of the side deck plate, and the other end of the first connecting frame is connected through the side deck plate. The rod is connected with the inner side of the side deck through the rubber node connection, and the main deck connecting rod is connected with the inner side of the main deck through the rubber node, so as to realize the connection between the bogie, the main deck and the side deck. The use of rubber joints can moderate the vibration of the bogie compartment during vehicle operation.

Figure 11 is an exploded schematic view of the connection between the side deck connecting rod of the first connecting frame and the primary spring fixing seat of the bogie. 11, the first series of fixed seat interface 10311a of the connecting rod of the side deck plate and the first series of spring fixed seat of the bogie are fixedly connected by the cabin fixing nut and the cabin fixing bolt.

In implementation, as shown in FIG. 2 , the side deck connecting rod 10311 is higher than the main deck connecting rod 10312;

The first connecting frame 1031 further includes a first connecting frame reinforcing rod 10313, one end of which is fixed with the side deck connecting rod 10311, and the other end is fixed with the main deck connecting rod 10312, so as to strengthen the first connection The strength of the frame 1031.

The existence of the reinforcing rod of the first connecting frame makes the strength of the entire first connecting frame higher.

Specifically, the position where the connecting rod of the main deck is connected with the main deck is located in the middle of the main deck in the height direction; the position where the connecting rod of the side deck is connected with the side deck is consistent with the height of the primary spring fixing seat of the bogie; The shape of the connecting rod of the main deck and the connecting rod of the side deck can be designed correspondingly according to the bogie to achieve the purpose of avoiding the bogie.

Fig. 14 is a perspective view of the first connecting frame of the bogie compartment shown in Fig. 2. As shown in Fig. 14, a rubber node 1044 is fixed at one end of the connecting rod of the side deck plate away from the first-series fixing seat interface 10311a. The inner side of the side deck 1022 is connected; the end of the connecting rod of the main deck away from the first series fixing seat interface 10311a is fixed with a rubber node 1044, and the inner side of the main deck 1021 is connected through the rubber node.

In implementation, as shown in FIG. 2 , the bogie compartment further includes a second connecting frame 1032, and the second connecting frame 1032 includes:

The brake hanger connecting rod 10321 has one end connected to the inner side of the side deck away from the main deck through a rubber node, and the other end has a brake hanger interface 10321a;

Wherein, the brake hanger interface 10321a of the brake hanger connecting rod is used to connect with the brake unit hanger of the bogie.

Specifically, the height of the brake hanger connecting rod is consistent with the height of the brake hanger of the bogie, so that the brake hanger connecting rod has a simple structure and uses less materials.

Figure 12 is an exploded schematic view of the connection of the brake hanger connecting rod of the second connecting frame and the brake unit hanger of the bogie. As shown in Figure 12, the brake hanger interface 10321a of the brake hanger connecting rod and The suspension of the braking unit of the bogie is fixedly connected by the fixing bolts 1041 for the cabin and the fixing nuts 1042 for the cabin.

In implementation, as shown in FIG. 2 , the second connecting frame further includes:

The beam connecting rod 10322 has one end connected to the inner side of the side deck 1022 away from the main deck through a rubber joint, and the other end has a beam interface 10322a; the beam connecting rod 10322 is located on the brake hanger connecting rod below 10321;

Wherein, the beam interface 10322a of the beam connecting rod is used to connect with the beam of the bogie.

Specifically, the height of the beam connecting rod is the same as that of the beam of the bogie in the height direction, so that the structure of the beam connecting rod is simple and requires less material.

Figure 13 is an exploded schematic view of the connection between the beam connecting rod of the second connecting frame and the beam of the bogie. As shown in Figure 13, the beam interface 10322a of the beam connecting rod and the beam of the bogie pass through the cabin fixing bolts 1041. The washer 1043 and the cabin are fixedly connected with a fixing nut 1042 .

Fig. 15 is a perspective view of the second connecting frame of the bogie compartment shown in Fig. 2. As shown in Fig. 15, a rubber node 1044 is fixed at one end of the beam connecting rod away from the beam interface 10322a. Inside connection.

Specifically, as shown in FIG. 15 , a rubber node 1044 is fixed at one end of the brake hanger connecting rod away from the brake hanger interface 10321a, and is connected to the inner side of the side deck through the rubber node.

The second connecting frame reinforcing rod 10323 has one end fixed to the brake hanger connecting rod 10321 and the other end fixed to the beam connecting rod;

The second connecting frame reinforcing rods 10323 are two and are arranged in parallel.

The existence of the reinforcing rod of the second connecting frame makes the strength of the whole second connecting frame higher.

The second connecting frame as a whole, one end of the second connecting frame is connected with the bogie through the interface of the brake hanger and the interface of the beam, and the other end of the second connecting frame is connected with the connecting rod of the brake hanger and the connecting rod of the beam through the rubber The node connection is connected with the side deck, thus realizing the connection between the bogie and the side deck. The use of rubber joints can moderate the vibration of the bogie compartment during vehicle operation.

In practice, there are two cabin components, and the beam interfaces 10322a of the two beam connecting rods are connected, and the connection is used for connecting with the beam of the bogie.

The beam interface of the beam connecting rod of such a structure saves the space for connecting with the beam.

In order to realize the fixing of the main deck and the side deck, the bogie compartment also needs to include corresponding structures.

3 is an exploded schematic view of the main deck and side decks of the bogie compartment shown in FIG. 2 , FIG. 4 is an exploded view of the connection structure of the main deck and the side decks shown in FIG. 3 , and FIG. 5 is FIG. 4 Figure 6 is a schematic diagram of the anti-rotation seat of the bogie cabin shown in Figure 3 . As shown in FIG. 3 , two sides of the main deck are provided with main deck through holes 10211 respectively. The side deck of the side deck close to the main deck has a stepped hole-shaped side deck through hole 10221. The larger diameter of the side deck through hole 10221 is far away from the main deck and the hole wall is anti-rotation. polygonal structure;

A right prismatic first anti-rotation platform 10241 is formed at one end of the screw rod of the first anti-rotation bolt 1024 near the head. The screw rods of the first anti-rotation bolts 1024 pass through the side deck through holes and the main deck through holes, and the first anti-rotation table 10241 is clamped in a section with a larger diameter of the side deck through holes, In cooperation with the first nut 10251, the main deck and the side deck are fixed.

The outer peripheral surface of the right prism of the first anti-rotation table of the first anti-rotation bolt is matched with the shape of a section of the hole wall with a larger diameter of the side deck through hole, so that the right prism of the first anti-rotation table is stuck in the side deck through hole. The larger diameter section prevents the first anti-rotation table from rotating in the through hole of the side deck, and the connection stability is high. The head of the first anti-rotation bolt is clamped on one side of the through hole of the side deck. Specifically, the dimension of the first anti-rotation table in the axial direction perpendicular to the first anti-rotation bolt is larger than the diameter of the screw rod of the first anti-rotation bolt.

The main deck includes a main deck mounting seat, and the main deck mounting seat includes: a main deck mounting seat body 10212, which is formed on both sides of the main deck 1021; an anti-rotation seat 1026, which is fixed on the main deck On the mounting seat body 10212, the anti-rotation seat 1026 is provided with two anti-rotation protruding strips 10261 arranged oppositely, and the main deck through hole 10211 is between the two anti-rotation protruding strips 10261 and penetrates The main deck mounting seat body 10212 and the anti-rotation seat 1026, the anti-rotation protruding strip 10261 is provided with an anti-rotation groove 10262 in the middle;

The first anti-rotation elastic piece 1027 has a circular through hole. The screw rod of the first anti-rotation bolt 1024 also passes through the circular through hole of the first anti-rotation shrapnel 1027, and the first nuts 10251 are respectively pressed on both sides of the first anti-rotation shrapnel, so the Both ends of the first anti-rotation elastic piece 1027 are respectively clamped in the anti-rotation groove 10262 .

The first anti-rotation shrapnel itself can generate a certain elastic deformation, so that the first anti-rotation shrapnel can adapt to a certain deformation and alleviate a certain vibration. The anti-rotation groove of the anti-rotation protruding strip and the cooperation of the first anti-rotation shrapnel realize the anti-rotation at one end of the screw rod of the first bolt, so that the fixing of the main deck and the side deck is more stable.

Specifically, the anti-rotation seat is fixed on the main deck mounting seat body by bolts and washers. The advantage of setting the anti-rotation seat separately is that after the anti-rotation seat is damaged by force, only the anti-rotation seat needs to be replaced, and the main deck is not affected.

Specifically, as shown in FIG. 6 , the main deck through hole 10211 is an elongated main deck through hole. The advantage is that the machining accuracy of the through hole of the main deck is lower, and the assembly is easier to achieve.

Specifically, as shown in FIG. 4 and FIG. 5 , the first anti-rotation shrapnel 1027 is a first anti-rotation shrapnel in the shape of a few glyphs, and the two flanges at the bottom of the first anti-rotation shrapnel 1027 are respectively caught in the two anti-rotation shrapnel. In the groove, the circular through hole of the first anti-rotation shrapnel is arranged at the transverse arm of the top end of the first anti-rotation shrapnel. The several-shaped first anti-rotation shrapnel itself can undergo elastic deformation of movement, can adapt to certain deformation, and alleviate certain vibration. Specifically, a gasket is further provided between the first nut and the first anti-rotation shrapnel.

The two sides of the main deck are respectively provided with a plurality of the main deck mounting seat bodies 10212 from top to bottom; the anti-rotation seat 1026, the first anti-rotation shrapnel 1027 and the side deck through holes The number of 10221 matches the number of the main deck mounts. Specifically, the two sides of the main deck are respectively provided with three main deck mounting seats at intervals from top to bottom. The number of the main deck mounting seats arranged at intervals from top to bottom on both sides of the main deck is selected according to the actual situation.

In order to realize the connection between the first connecting frame and the second connecting frame and the deck, the bogie cabin also needs to include corresponding structures, and the deck includes a main deck and a side deck. FIG. 7 is a partial enlarged view of the bogie compartment shown in FIG. 2 , FIG. 8 is a partial enlarged view of the bogie compartment shown in FIG. 7 , and FIG. 9 is a side deck and a first side deck of the bogie compartment shown in FIG. An exploded schematic view of the connection frame, FIG. 10 is an exploded view of the connection structure between the side deck and the first connection frame and the second connection frame shown in FIG. 8 . As shown in Fig. 7, Fig. 8, Fig. 9 and Fig. 10, the bogie cabin further includes an anti-rotation mounting structure, and the anti-rotation mounting structure includes: an anti-rotation convex seat 10222, which is formed on the inner side of the deck and has a stepped hole; The hole wall of the larger diameter section of the step hole of the boss is an anti-rotation polygonal structure; wherein, the deck includes the main deck and the side deck; the anti-rotation recess 1033 has a through hole and is fastened to the anti-rotation boss The end of the screw rod of the second anti-rotation bolt 1034 near the head is formed with a second anti-rotation platform 10341 in the shape of a right prism; The through hole of the anti-rotation concave seat 1033, the second anti-rotation table 10341 is clamped in the larger diameter of the stepped hole of the anti-rotation convex seat 10222, and cooperates with the second nut 10351 to lock the anti-rotation table 10341. The boss is fixed to the deck.

The right prism of the second anti-rotation platform of the second anti-rotation bolt matches the shape of the hole wall of the anti-rotation convex seat with a section of the stepped hole with a larger diameter, so that the right prism of the second anti-rotation platform is stuck on the anti-rotation convex seat with a stepped hole. A section with a larger hole diameter prevents the right prism of the second anti-rotation table from rotating in the stepped hole of the anti-rotation convex seat, and the connection stability is high. The head of the second anti-rotation bolt is caught on the other side of the deck. Specifically, the anti-rotation boss and the deck are an integrated structure.

The anti-rotation boss 10222 is a rectangular anti-rotation boss, and the anti-rotation recess is a rectangular anti-rotation recess. In this way, when the anti-rotation concave seat is fastened on the anti-rotation convex seat, due to the rectangular shape of the two, the anti-rotation concave seat cannot rotate relative to the anti-rotation convex seat. Two anti-rotation notches are symmetrically arranged on the side of the anti-rotation recess 1033 away from the anti-rotation convex seat.

The second anti-rotation elastic piece 1036 has a circular through hole. The threaded rod of the second bolt 1034 also passes through the circular through hole of the second anti-rotation elastic piece 1036 , and the second nuts 10351 are respectively pressed on both sides of the second anti-rotation elastic piece 1036 . The second anti-rotation elastic piece 1036 is stuck in the anti-rotation notch.

The second anti-rotation shrapnel itself can generate a certain elastic deformation, so that the anti-rotation installation structure can adapt to a certain deformation and alleviate a certain vibration. The anti-rotation notch of the anti-rotation recess and the cooperation of the second anti-rotation shrapnel realize the anti-rotation at one end of the screw rod of the second bolt, so that the fixing of the deck and the anti-rotation mounting structure is more stable. The through holes of the anti-rotation recess are elongated through holes, which require lower machining accuracy and are easier to assemble.

Specifically, as shown in FIG. 10 , the second anti-rotation shrapnel 1036 is a second anti-rotation shrapnel in the shape of a few characters, and the two flanges of the bottom end of the second anti-rotation shrapnel 1036 are respectively caught in the two anti-rotation notches. The circular through hole of the second anti-rotation shrapnel is arranged at the transverse arm of the top end of the second anti-rotation shrapnel. The double-shaped second anti-rotation shrapnel itself can undergo elastic deformation of movement, can adapt to certain deformation and moderate certain vibration. Specifically, a gasket is further provided between the second nut and the second anti-rotation shrapnel.

In implementation, as shown in FIG. 7 , the position where the side deck 1022 is connected to the side deck connecting rod 10311 of the first connecting frame, the side deck 1022 is connected to the brake hanger of the second connecting frame The position where the connecting rod 10321 is connected, and the position where the side deck 1022 is connected with the beam connecting rod 10322 of the second connecting frame, are respectively provided with the anti-rotation installation structure;

The side cabin connecting rod 10311, the brake hanger connecting rod 10321 and the beam connecting rod 10322 are respectively connected to the anti-rotation installation structures at their respective positions. The anti-rotation installation structure realizes safe and reliable connection, quick disassembly and assembly, can adapt to certain deformation and alleviate certain vibration.

Specifically, as shown in FIG. 7 , the side deck connecting rod 10311 of the first connecting frame is connected with the side deck 1022 through the anti-rotation mounting structure, and the anti-rotation convex seat 10222 is formed on the inner side of the side deck 1022, and the anti-rotation convex seat is formed on the inner side of the side deck 1022. 10222 has two stepped holes arranged in parallel; correspondingly, the anti-rotation recess 1033 also has two horizontally arranged elongated through holes, the second anti-rotation elastic pieces 1036 are also two, and the second bolts are also Two; the side deck connecting rods 10311 of the first connecting frame are connected under the two laterally parallel elongated through holes of the anti-rotation recess 1033 through rubber nodes. The side deck connecting rod of the first connecting frame is greatly affected by the lateral force, and the two elongated through holes of the anti-rotation recess are arranged in parallel horizontally, so that the side deck is subjected to the force exerted by the side deck connecting rod. effect is more dispersed.

Specifically, as shown in FIG. 7 , the bogie cabin further includes a deck connecting rod mounting seat 10213, and the deck connecting rod mounting seat is fixed on the inner side of the main deck by bolts, wire threaded sleeves and gaskets. The main deck connecting rod 10312 of the connecting frame is fixed on the mounting seat of the deck connecting rod through a rubber joint. In this way, a stable connection is achieved between the connecting rod of the main deck and the main deck.

Specifically, as shown in FIG. 7 , the connecting rod 10321 of the brake hanger of the second connecting frame is connected to the side deck 1022 through an anti-rotation mounting structure, the anti-rotation convex seat is formed on the inner side of the side deck, and the anti-rotation convex seat has Two step-hole-shaped circular through holes arranged in parallel up and down; correspondingly, the anti-rotation recess also has two elongated through holes arranged in parallel up and down, the second anti-rotation shrapnel is also two, the first Two bolts are also two;

The connecting rod 10321 of the brake hanger of the second connecting frame is connected between the two elongated through holes arranged in parallel up and down in the anti-rotation recess through a rubber node.

Specifically, as shown in FIG. 7 , the beam connecting rod 10322 of the second connecting frame is connected to the side deck 1022 through the anti-rotation mounting structure, the anti-rotation convex seat is formed on the inner side of the side deck, and the anti-rotation convex seat has two front and rear A circular through hole in the shape of a stepped hole arranged in parallel; correspondingly, the anti-rotation recess 1033 also has two elongated through holes arranged in parallel in the front and rear, and the second anti-rotation shrapnel is also two, and the second bolt also two;

The cross beam connecting rod 10322 of the second connecting frame is connected between the two elongated through holes arranged in parallel in the front and rear of the anti-rotation recess 1033 through a rubber joint.

The way in which the two parallel elongated through holes of the anti-rotation recess are arranged needs to consider the direction of the force exerted by the connecting rod connected to it, and also the spatial characteristics of the position of the anti-rotation recess.

Embodiment 2

The bogie system of the embodiment of the present application includes: a bogie and the bogie cabin of the first embodiment, the inner side of the bogie cabin is connected to the bogie, and a first preset interval is maintained between the main deck and the bogie, so A second preset interval is maintained between the side deck and the bogie. The main deck is a composite main deck and the side decks are composite side decks.

The bogie of the bogie system of this embodiment further includes components such as a beam, a side beam, a wheel set, a traction device, and a suspension device. In this embodiment, the horizontal direction that is the same as the vehicle traveling direction is referred to as the longitudinal direction, the horizontal direction perpendicular to the longitudinal direction is referred to as the lateral direction, and the direction perpendicular to the horizontal direction is referred to as the vertical direction or vertical direction. The beams extend laterally in the bogie.

FIG. 16 is a perspective view of a beam provided by an embodiment of the present application, and FIG. 17 is a perspective view of a beam unit provided by an embodiment of the present application. As shown in FIGS. 16 and 17 , this embodiment provides a bogie beam, including: two beam units 2 , which are arranged in sequence along the lateral direction and connected to each other to form a beam. The beam unit 2 includes: a beam main body 21 and a beam connecting arm 22, both of which extend in the lateral direction. The inner end face of the beam body 21 facing the other beam body 21 has a first installation area and a second installation area. One end of the beam connecting arm 22 is fixed to the first installation area, and the other end is connected to the second installation area in the other beam unit 2 through the beam connecting device.

The above-mentioned cross member main body 21 is used for assembling with the side members, constituting the frame of the bogie, and serving as the main body member of the bogie. Specifically, a side beam installation interface for assembling with the side beam is provided on the top surface of the middle of the beam body 21 , and the side beam is located above the beam body 21 .

In the technical solution provided in this embodiment, two beam units are connected to form a bogie beam, wherein the beam unit includes: a beam body and a beam connecting arm, and the inner end face of the beam body facing the other beam unit has a first installation area and the second installation area; the middle top surface of the beam body is used for assembling with the bogie side beams; the beam connecting arm, extending in a direction parallel to the beam body, has one end fixed to the first installation area in the beam body, and the other end It is connected to the second installation area of the beam body in the other beam unit by the beam connecting device. The beam provided in this embodiment is different in structure from the beam in any conventional bogie, and the assembly method with the side beam is also different from the traditional method. Moreover, the beam provided in this embodiment is small in volume, easy to produce, Transportation and assembly can improve assembly efficiency.

On the basis of the above technical solutions, this embodiment provides a specific implementation of a beam: the beam is made of cast aluminum alloy or other lightweight materials, and the cast mold can be made by additive manufacturing technology to reduce weight. As shown in FIG. 17 , the width of the end of the beam main body 21 facing the other beam unit 2 is larger than the width of the middle of the beam main body 21 . The end face of the beam body 21 facing the other beam unit 2 is called the inner end face, and the first installation area and the second installation area are respectively located on the inner end face of the beam body 21 , specifically arranged at both ends along the width direction of the inner end face.

A certain distance is left between the first installation area and the second installation area, so that there is a certain gap between the two beam connecting arms 22 for accommodating the pulling center pin in the bogie pulling device. The top of the traction center pin is connected with the vehicle body, and the bottom is inserted into the gap between the two beam connecting arms 22 to transmit traction or braking force with the beam.

For the connection between the two beam units 2, a rigid connection can be used, for example, the beam connecting arm 22 is connected to the other beam main body 21 by bolts. Alternatively, the following solutions provided by this embodiment can also be adopted:

One implementation way: using a beam connecting pin, the two ends along its axial direction are called the first end and the second end respectively. The first end is connected with the beam connecting arm 22, and the second end is inserted and fixed in the first pin hole opened in the second installation area. The first end of the beam connecting pin and the beam connecting arm 22 can be connected by bolts, welding, compression installation, etc., and the second end can be fixed in the second pin hole by welding, compression installation or through gasket bolt connection The way.

Another implementation: FIG. 18 is a cross-sectional view of a beam provided by an embodiment of the application, FIG. 19 is a partial enlarged view of area A in FIG. 18 , and FIG. 20 is an exploded view of the connection of two beam monomers provided by the embodiment of the application. . As shown in FIGS. 18 to 20 , the beam connecting device includes: beam connecting pins 23 , beam connecting flanges 24 , beam connecting nodes 25 , and beam connecting washers 26 .

The beam connecting node 25 is an annular structure, press-fitted into the first pin hole 210 , and relatively fixed to the beam main body 21 . In FIG. 19 , the axial direction of the beam connecting node 25 extends in the left-right direction, and the left end thereof is referred to as the first end, and the right end thereof is referred to as the second end.

The second end of the beam connecting pin 23 is press-fitted into the beam connecting node 25 and relatively fixed to the beam connecting node 25 . The beam connecting washer 26 is disposed at the second end surface of the beam connecting pin 23 and is coaxial with the beam connecting pin 23 . The outer diameter of the beam connecting washer 26 is larger than the inner diameter of the beam connecting node 25 , and the inner diameter of the beam connecting washer 26 is smaller than the outer diameter of the beam connecting pin 23 . The second end of the beam connecting pin 23 is provided with an inner threaded hole, and the beam connecting bolt 28 is used to pass through the beam connecting washer 26 from the right side, and then screwed and fixed to the inner threaded hole of the beam connecting pin 23 to realize the beam connecting pin. 23. The fixed connection between the beam connection nodes 25 .

The beam connecting flange 24 has an outer ring and an inner ring for mounting, wherein the inner ring is inserted into the first pin hole 210 and abuts against the second axial end of the beam connecting node 25, and the outer ring of the beam connecting flange 24 is connected to the outer ring of the beam connecting flange 24 through bolts. The beam main bodies 21 are connected to realize the fixed connection between the beam connection node 25 and the beam main body 21 .

Further, the cross-beam connecting device further includes: at least one cross-beam mounting ring 27 disposed in the first pin hole 210 and located between the left end of the cross-beam connection node 25 and the cross-beam main body 21 . During the assembly process, the beam connecting pin 23 passes through at least one beam mounting ring 24 , the beam connecting node 25 and the beam connecting washer 26 in sequence from the left, and then is fixed with the beam connecting bolt 28 . The beam mounting ring 27 is used to adjust the dimensional deviation between the beam connecting node 25 and the beam main body 21. The number and thickness of the beam mounting ring 27 can be set according to the specific dimensional deviation, so that the beam connecting node 25 can be fixed on the beam main body 21. inside, to avoid relative movement with the beam main body 21 during the running of the vehicle to generate vibration.

The first end of the cross beam connecting pin 23 is inserted into the second pin hole opened on the end surface of the cross beam connecting arm 22, and the outer peripheral surface of the cross beam connecting pin 23 extends radially outward to form a mounting flange and the end of the cross beam connecting arm 22. The flanges are connected by bolts. The radial force between the beam connecting pin 23 and the beam connecting arm 22 is borne by the end of the beam connecting arm 22 inserted into the second pin hole, so as to prevent the bolts connected to the beam connecting arm 22 from being subjected to shearing force.

The assembling process of the above-mentioned beam connecting device to connect the beam monomer is as follows: firstly connect the first end of the beam connecting pin 23 to the beam connecting arm 22 with bolts, and then connect the beam connecting pin 23 to the beam main body 21 . The process of connecting the beam connecting pin 23 to the beam main body 21 is specifically as follows: firstly inserting the beam mounting ring 27 into the first pin hole 210 of the beam main body 21 according to the measured dimensional deviation, press-fitting the beam connecting node 25, and then inserting the beam connecting pin 23 Press into the beam connecting node 25 , place the beam connecting washer 26 , pass the beam connecting bolt 28 through the beam connecting washer 26 and then screw it into the beam connecting pin 23 for fixing. Finally, the beam connecting flange 24 is abutted on the right end of the beam connecting node 25 and fixed to the beam main body 21 by bolts.

The axial force, radial force, torsional force and deflection deformation between the two beam units 2 are all borne by the beam connecting nodes. Further, the beam connecting node 25 includes a metal shell, a metal inner ring and a rubber block disposed therebetween. The rubber block, the metal shell and the metal inner ring are vulcanized to form an integral structure, so that the beam connecting node 25 has a certain deformability. Using the beam connecting node 25 provided in this embodiment can cause a certain angle of deflection between the two beam units 2 . For example: when there is a pit under one side of the track, when the bogie passes through this position, for the traditional rigid beam, the wheels on both sides are constrained greatly, resulting in the suspension of the wheels above the pit, which is extremely high under the condition of lateral force. Easily derailed. However, flexible deflection is generated between the two beam units 2 through the beam connection node 25, so that the wheels above the pit still fit with the track, thereby improving driving safety. Compared with the traditional rigid beam, the beam provided in this embodiment is applied to the bogie, and has better adaptability to complex and harsh lines, higher riding comfort, and higher safety. The beams in the traditional bogie are welded, and there are many factors affecting the welding quality, such as: ambient temperature, flux composition, welding temperature, etc. Poor welding quality will reduce the reliability of the bogie. In this embodiment, the above-mentioned two beam monomers are connected by bolts, and the reliability is higher.

On the basis of the above technical solutions, the beam unit 2 also provides connection interfaces for a plurality of components, which improves the integration degree.

For example, the middle top surface of the beam main body 21 is provided with an interface for assembling with the side beams, and the side beams are arranged above the beam main body 21 . Specifically, a side beam positioning pin hole 211 is provided on the top surface of the middle part of the cross beam main body 21 for passing the positioning pin disposed at the bottom of the side beam to limit the horizontal movement of the side beam.

Further, the number of side beam positioning pin holes 211 is two, which are arranged in sequence along the longitudinal direction. One of the side beam positioning pin holes 211 is a circular hole, and the other is an oblong hole extending in the longitudinal direction in the longitudinal direction. Correspondingly, two positioning pins are provided at the bottom of the side beams, which are respectively inserted into the round holes and the oblong holes. In the production process, due to the existence of measurement tools, measurement methods, production equipment and other factors, the distance between the two positioning pins at the bottom of the side beam will have an actual deviation within the allowable range. If it cannot be assembled with the beam due to the actual deviation, the Affect the production takt time, thereby delaying the production schedule. The use of the round hole and the long round hole can adapt to the actual deviation between the two positioning pins, normally complete the assembly of the side beam and the cross beam, and improve the production efficiency.

21 is a perspective view of a side beam provided by an embodiment of the application, FIG. 22 is a front view of a side beam provided by an embodiment of the application, and FIG. 23 is another front view of a side beam provided by an embodiment of the application; A schematic diagram of a side beam bearing a first vertical load provided in this embodiment, and FIG. 25 is a schematic diagram of a side beam bearing a second vertical load provided by this embodiment.

As shown in FIGS. 21 to 25 , the bogie side beams provided in this embodiment are double-layer side beams, including: a main side beam plate 11 , an auxiliary side beam plate 12 and an elastic stop 13 . Among them, the main side sill plate 11 and the auxiliary side sill plate 12 are made of elastic composite fiber material, which has the advantages of light weight and elastic deformation. The main side sill plate 11 and the auxiliary side sill plate 12 are stacked up and down, as shown in FIG. 22 . The auxiliary side sill plate 12 is stacked above the main side sill plate 11 . The bottom surface of the middle part of the auxiliary side sill plate 12 is in contact with the top surface of the main side sill plate 11 . Both ends of the auxiliary side sill plate 12 are suspended, that is, there is a buffer gap 14 between the bottom surfaces of both ends of the auxiliary side sill plate 12 and the top surface of the main side sill plate 11 .

The elastic stop 13 is arranged at the end of the auxiliary side sill plate 12 and is located in the buffer gap 14 . When the side sill is not subjected to vertical load, there is a certain gap between the elastic stop 13 and the upper surface of the main side sill plate 11 . When the middle of the side sill bears the first vertical load, the main side sill plate 11 is slightly elastically deformed, and there is a gap between the elastic stopper 13 and the top surface of the main side sill plate 11 , as shown in FIG. 24 . When the middle part of the side sill bears a larger second vertical load, the main side sill plate 11 and the auxiliary side sill plate 12 undergo greater elastic deformation, and the middle parts of the main side sill plate 11 and the auxiliary side sill plate 12 are compressed toward Move downward, and both ends move upward and inward until the elastic stopper 13 contacts the top surface of the main side sill plate 11 , as shown in FIG. 25 .

When the vehicle is empty or full, the vehicle load is small, and the elastic stopper 13 is not in contact with the main side sill plate 11, as shown in FIG. 24 . Only the main side sill plate 11 bears the vertical force and transmits it to the primary suspension device, only the main side sill plate 11 produces elastic deformation, and the auxiliary side sill plate 12 is not subjected to force and does not provide supporting rigidity.

When the vehicle is overloaded, the load of the vehicle is relatively large, the auxiliary side sill plate 12 moves down, and the elastic stopper 13 contacts the main side sill plate 11, as shown in FIG. 25 . At this time, the load of the vehicle is simultaneously supported by the main side sill plate 11 and the auxiliary side sill plate 12 and provides vertical rigidity to ensure that as the load of the vehicle increases, the supporting rigidity provided by the bogie increases accordingly, so that the vehicle is under different load conditions. , the vibration amplitude of the carriage is in a small range, which improves the ride comfort.

On the basis of the above technical solutions, the present embodiment provides a specific implementation manner of a side beam:

As shown in FIG. 23 , the main side sill plate 11 includes three parts: a main board middle section 111 , a main board transition section 112 and a main board connecting section 113 . The main board transition section 112 and the main board connecting section 113 extend from both ends of the main board middle section 111 respectively. The main plate connecting section 113 is located at the end of the main side sill plate 11 . The height of the middle section 111 of the main board is lower than the height of the connecting section 113 of the main board, and the transition section 112 of the main board is connected between the middle section 111 of the main board and the connecting section 113 of the main board. From the middle to the end of the main side sill plate 111 , the transition section 112 of the main plate is obliquely upward. The main board connecting section 113 is used for cooperating and connecting with a series of suspension devices. The thickness of the middle section 111 of the main board is greater than the thickness of the connecting section 113 of the main board, which increases the supporting strength of the middle section 111 of the main board. The thickness of the transition section 112 of the main board gradually decreases along the direction from the middle section 111 of the main board to the connecting section 113 of the main board.

A specific way: the thickness of the middle section 111 of the main board is uniform and extends in the horizontal direction. The thickness of the main board connecting section 113 is uniform and extends in the horizontal direction. Along the direction from the middle section 111 of the main board to the connecting section 113 of the main board, the main board transition section 112 extends in an oblique upward direction, and its thickness gradually decreases.

As shown in FIG. 23 , the auxiliary side sill plate 12 includes: an auxiliary plate middle section 121 , an auxiliary plate transition section 122 and an auxiliary plate connecting section 123 . The auxiliary board transition section 122 and the auxiliary board connecting section 123 respectively extend from both ends of the middle section 121 of the auxiliary board. The height of the middle section 121 of the auxiliary board is lower than the height of the connecting section 123 of the auxiliary board, and the transition section 122 of the auxiliary board is connected between the middle section 121 of the auxiliary board and the connecting section 123 of the auxiliary board. A specific way: the thickness of the middle section 121 of the auxiliary board is uniform and extends in the horizontal direction. The thickness of the transition section 122 of the auxiliary plate may be uniformly set or non-uniformly set, and extend obliquely upward. The auxiliary board connecting section 123 is located at the end of the auxiliary board transition section 122 , and its extension direction is the same as that of the auxiliary board transition section 122 . The vertical projection of the auxiliary board connecting section 123 falls on the main board transition section 122 , and the buffer gap 14 is formed between the auxiliary board connecting section 123 , the auxiliary board transition section 122 and the main board transition section 112 .

The elastic stopper 13 is arranged on the connecting section 123 of the auxiliary board. When the load on the side beam is relatively large, the elastic stopper 13 is in contact with the transition section 112 of the main board. The elastic stopper 13 has a certain rigidity and also has a certain elastic buffering capacity. Specifically, this embodiment provides an elastic stopper 13 including a stopper block and a stopper connecting piece. The stop block includes a metal shell and a rubber block arranged in the metal shell, and the rubber block and the metal shell form an integrated structure through a vulcanization process. One end of the stop connecting piece is connected with the metal shell, and the other end is connected with the auxiliary side beam plate 12 .

In the bogie provided in this embodiment, the side beams are arranged above the cross beams. The bottom surface of the middle section 111 of the main board is provided with a first side beam positioning pin 15 for positioning with the beam, and the first side beam positioning pin 15 extends in a direction perpendicular to the middle section 111 of the main board. During the assembly process, the first side beam positioning pin 15 is inserted into the side beam positioning pin hole 211 of the beam to realize the positioning between the beam and the side beam, so that there is no relative movement between the two in the horizontal direction.

The above-mentioned main side sill plate 11 and auxiliary side sill plate 12 are both made of elastic composite fiber materials, such as carbon fiber composite materials, glass fiber composite materials, or carbon fiber and glass fiber composite materials. On the basis of the above materials, other composite materials can also be added.

A specific implementation manner: the number of the first side beam positioning pins 15 is two, which are arranged at intervals along the length direction of the main side beam plate 11 in sequence. The first side beam positioning pin 15 may be made of metal, or may be made of a material with higher hardness. When the first side sill positioning pin 15 is made of metal and the main side sill plate 11 is made of carbon fiber composite material, a metal piece is pre-buried in the bottom of the main side sill plate 11, and the outer end of the metal piece is exposed to the main side sill plate 11 and form a flat structure, and the first side beam positioning pin 15 is fixed on the flat structure.

In addition, a second side member positioning pin 16 is provided on the middle top surface of the auxiliary side member plate 12 for positioning with the secondary suspension device of the bogie. The second side sill positioning pin 16 extends in a direction perpendicular to the middle top surface of the auxiliary side sill plate 12 . The number of the second side sill positioning pins 16 is two, which are arranged at intervals along the length direction of the auxiliary side sill plate 12 . The second side beam positioning pin 16 may be made of metal, or may be made of a material with higher hardness. When the second side beam positioning pin 16 is made of metal and the auxiliary side beam plate 12 is made of carbon fiber composite material, the positioning metal piece 18 is pre-embedded in the bottom of the auxiliary side beam plate 12, and the outer end of the positioning metal piece 18 is exposed. The upper surface of the auxiliary side sill plate 12 forms a flat structure, and the second side sill positioning pin 16 is fixed on the flat structure.

Further, the bottom surfaces of both ends of the main side beam plate 11 are provided with third side beam positioning pins 17 for positioning with the primary suspension device of the bogie. The third side sill positioning pin 17 extends in a direction perpendicular to the bottom surface of the end portion of the main side sill plate 11 . Both ends of the main side beam plate 11 are respectively provided with a third side beam positioning pin 17 , and the third side beam positioning pin 17 may be made of metal or a material with higher hardness. When the third side sill positioning pin 17 is made of metal and the main side sill plate 11 is made of carbon fiber composite material, metal parts can also be pre-embedded in the main side sill plate 11 with reference to the above solution, and the metal parts are exposed to the main side sills A portion of the bottom surface of the plate 11 is connected to the third side member positioning pin 17 .

Further, the top surface of the beam main body 21 is provided with two secondary installation platforms 212 protruding from the top surface of the beam main body 21, and the recessed area formed between the two secondary installation platforms 212 is used to accommodate the side beam 1, the side beam The positioning pin holes 211 are provided in the recessed area.

Further, two secondary suspension mounting bases 8 are used, which are respectively covered and arranged above the side beam 1 and connected with the cross beam 2 . A longitudinally penetrating installation channel is formed between the secondary suspension mounting seat 8 and the cross beam 2 , the side beam 1 passes through the installation channel, and the middle of the side beam 1 is located in the installation channel. The side beam 1 and the beam 2 are two independent structures. During the assembly process, the side beam is first placed on the installation position of the beam 2, and then the secondary suspension mounting seat 8 is set on the side beam 1 and assembled with the beam 2. .

Specifically, FIG. 26 is a schematic structural diagram of a middle beam, a side beam and a secondary suspension mounting seat in a bogie provided by an embodiment of the application, and FIG. 27 is a middle beam, a side beam and a secondary suspension installation in a bogie provided by an embodiment of the application. An exploded view of the seat, FIG. 28 is a top-view perspective view of a secondary suspension mount provided by an embodiment of the application, FIG. 29 is a bottom-view perspective view of a secondary suspension mount provided by an embodiment of the application, and FIG. 30 is an embodiment of the application A partial cross-sectional view of the provided secondary suspension mount with side beams and cross beams.

As shown in FIGS. 26 to 30 , the secondary suspension mounting seat 8 includes: a mounting seat top plate 81 and a mounting seat side plate 82 . Wherein, the top plate 81 of the mounting seat extends in the horizontal direction, and the top surface thereof is used for mounting the secondary suspension device. The mounting seat side plates 82 are vertically arranged and parallel to the longitudinal direction. The number of the mounting seat side plates 82 is two, and the top ends of the two mounting seat side plates 82 are respectively connected to two opposite edges of the mounting seat top plate 81 . The bottom end of the mounting seat side plate 82 is bent outward to form a mounting seat connecting portion 83 , and the mounting seat connecting portion 83 is fixedly connected to the second-series mounting platform 212 .

Specifically, mounting seat bolt holes 84 are provided at both ends of each mounting seat connecting portion 83, and secondary bolt holes 2121 are correspondingly opened on the secondary mounting platform 212, which are connected to the mounting seat bolt holes 84 by bolts to connect the mounting seat. The part 83 is fixed on the second-series mounting table 212 .

Further, a mounting seat positioning protrusion 85 is provided on the bottom surface of each mounting seat connecting portion 83 , and the mounting seat positioning protrusions 85 on the two mounting seat connecting portions 83 may both be cylindrical. The second-series mounting table 212 is correspondingly provided with second-series positioning holes 2122, one of which is a circular positioning hole, the other is an oblong positioning hole, and one mounting seat positioning protrusion 85 is inserted into the circular positioning hole for accurate positioning, and the other A mounting seat positioning protrusion 85 is inserted into the oblong positioning hole, which can adapt to the production deviation of the mounting seat positioning protrusion 85, and avoid the problem that the production rhythm is affected by the inability to locate due to the production deviation.

Alternatively, the mounting seat positioning protrusion 85 on one of the mounting seat connecting portions 83 is cylindrical, and the mounting seat positioning protrusion 85 on the other mounting seat connecting portion 83 is a long cylindrical shape. A circular positioning hole and an oblong positioning hole are correspondingly provided on the second-series mounting platform 212, and a cylindrical mounting seat positioning protrusion 85 and an elongated cylindrical mounting seat positioning protrusion 85 are respectively inserted.

The lower surface of the mounting seat top plate 81 in the secondary suspension mounting seat 8 is provided with side beam positioning countersunk holes 86 , the number and position of which correspond to the second side beam positioning pins 16 . During the assembly process, the side beam 1 and the secondary mounting seat 8 are positioned by correspondingly inserting the second side beam positioning pins 16 into the side beam positioning counterbores 86 .

On the basis of the above technical solution, the above bogie can also be improved: as shown in Figure 27 and Figure 30, a lower transition plate 871 is used to be arranged between the side beam 1 and the beam 2, and the difference between the side beam 1 and the beam 2 is opposite. buffering force. Especially when the side beam 1 is made of elastic fiber composite material, the lower transition plate 871 can reduce the wear of the side beam 1 and ensure its strength.

Specifically, the lower transition plate 871 may be a plate-like structure parallel to the horizontal plane. Further, both sides of the lower transition plate 871 extend upward to both sides of the side beam 1 , wrapping the side beam 1 . The lower transition plate 871 is correspondingly provided with a through hole through which the first side beam positioning pin 15 passes.

Further, an upper transition plate 872 is used to be disposed between the side beam 1 and the secondary installation seat 8 . The force between the side beam 1 and the secondary mounting seat 8 is buffered. Especially when the side beam 1 is made of elastic fiber composite material, the upper transition plate 872 can reduce the wear of the side beam 1 and ensure its strength.

Specifically, the upper transition plate 872 may be a plate-like structure parallel to the horizontal plane. Further, both sides of the upper transition plate 872 extend downward to the two sides of the side beam 1 , wrapping the side beam 1 . The upper transition plate 872 is correspondingly provided with a through hole through which the second side beam positioning pin 16 passes.

FIG. 31 is a schematic structural diagram of a bogie provided with a secondary suspension device according to an embodiment of the application. Further, the upper surface of the top plate 81 of the mounting seat is used for connecting with the secondary suspension device. Secondary suspensions can be rubber stacks, steel springs or air springs. In this embodiment, the air spring 810 is used as the secondary suspension device. As shown in FIG. 31 , the upper surface of the top plate 81 of the mounting seat is provided with a secondary mounting portion 88 , which is an annular structure protruding from the top plate 81 of the mounting seat. Extend vertically. The bottom of the air spring 810 is inserted into the second-series mounting portion 88 to limit the position in the horizontal direction.

FIG. 32 is a schematic structural diagram of a secondary suspension mounting base connected to a traction motor through a motor balance rod provided in an embodiment of the application. As shown in Figures 28, 29, and 32, the secondary suspension mounting base 8 is also provided with a motor mounting portion 89 for connecting one end of the motor balance bar 92, and the other end of the motor balance bar 92 with the traction force provided on the wheelset. The motor 91 is connected to the housing. The traction motor 91 is a direct drive motor, which is connected to the axle in the wheelset, and directly drives the axle to rotate, thereby driving the wheels to rotate.

33 is a schematic structural diagram of a bogie provided by an embodiment of the application, FIG. 34 is a structural schematic diagram of a wheelset in a bogie provided by an embodiment of the application, and FIG. 35 is a schematic diagram of a bogie provided with a safety stop device according to an embodiment of the application. Partial schematic. As shown in FIGS. 33 to 35 , the bogie provided in this embodiment includes the above-mentioned side beams 1 and cross beams 2 , as well as a wheelset 3 and a primary suspension device 4 .

The number of wheelsets 3 is two, which are distributed on both sides of the cross member 2 and located below the end of the side member 1 . The wheelset 3 includes: an axle 31 , a wheel 32 and an axle box 33 . The number of the wheels 32 is two, which are symmetrically arranged on the axle 31 . The number of the axle boxes 33 is two, and they are symmetrically arranged on the axle 31 . The axle box 33 may be located on the inner side of the wheel 32 or may be located on the outer side of the wheel 32 . In this embodiment, only the axle box 33 is located inside the wheel 32 as an example for description.

The primary suspension device 4 is arranged between the side beam 1 and the axle box 33 to transmit the vertical force between the side beam 1 and the axle box 33 , and also for the vibration between the axle box 33 and the side beam 1 . buffer. The primary suspension device has a certain rigidity and also has a certain elastic deformation capacity, and the direction of its elastic deformation extends vertically.

In addition, the bogie provided in this embodiment further includes a safety stop device 5, which is arranged on the top of the primary suspension device 4, and there is a gap between the safety stop device 5 and the vehicle body during the normal operation of the vehicle. When the side member 1 fails, the vehicle body falls on the safety stop device 5, and the safety stop device 5 bears the load of the vehicle body.

In the above technical scheme, a primary suspension device is used to be arranged between the side beam and the axle box, and a safety stop device is arranged on the top of the primary suspension device. When the side beam fails, the vehicle body falls on the safety stop device, and the safety stop The stop device bears the weight load of the vehicle body, protects the axle from running normally, and improves the operation safety.

On the basis of the above technical solutions, this embodiment specifically describes the implementation of the bogie: the above-mentioned safety stop device 5 has a certain rigidity and can bear the weight load of the vehicle body. For example, the safety stop 5 is made of a rigid material.

Alternatively, when the safety stop device 5 has a certain rigidity, it may also have a certain elastic buffering capacity, which can buffer the vibration between the vehicle body and the axle box.

36 is a cross-sectional view of a bogie provided with a safety stop device provided by an embodiment of the application, FIG. 37 is a schematic structural diagram of a safety stop device provided by an embodiment of the application, and FIG. 38 is a safety stop device provided by an embodiment of the application, Exploded view of the primary suspension and axlebox assembly. As shown in FIGS. 36 to 38 , in this embodiment, the safety stop device 5 includes a safety stop seat 51 and a safety stop 52 . The safety stopper 52 is fixed on the safety stopper seat 51 , and the safety stopper seat 51 is installed on the top of the primary suspension device 4 . The safety stop 52 has a certain elastic deformation ability, and its elastic deformation direction extends in the vertical direction, that is, it has the same elastic deformation direction as the primary suspension device 4 .

Another specific implementation manner: the safety stop 52 includes: a plurality of metal layers and a plurality of rubber layers arranged in layers, and a rubber layer is arranged between two adjacent metal layers. An integrated structure is formed between the metal layer and the rubber layer through a vulcanization process. The metal layer on the bottom layer is in contact with the safety stopper 51 . The rubber layer has a certain elastic buffering capacity, and the matching metal layer has a certain rigidity and can bear the weight load of the vehicle body.

This embodiment provides a specific implementation manner of the primary suspension device 4 : the primary suspension device 4 includes: a primary suspension mounting seat 41 and a primary suspension 42 . The primary suspension 42 is arranged on the top of the axle box 33 , and the bottom of the primary suspension 42 is provided with a primary positioning column, which is correspondingly inserted into the primary positioning hole 331 provided on the top of the axle box 33 to limit the horizontal movement of the primary suspension 42 .

The primary suspension mounting seat 41 is arranged on the top of the primary suspension 42 , and the safety stopper 51 in the safety stop device 5 is mounted on the primary suspension mounting seat 42 . An accommodating space for accommodating the end portion of the side beam 1 is provided in the first series suspension mounting seat 41 , and the end portion of the side beam 1 penetrates into the accommodating space.

A specific implementation manner: the first-series mounting seat 41 is formed by the bottom mounting seat 411 and the upper mounting seat 412 being buckled and butted up and down, and the above-mentioned accommodating space is formed between the lower mounting seat 411 and the upper mounting seat 412 . Specifically, the lower mounting seat 411 is made of a metal material, and is vulcanized with the rubber on the top of the primary suspension 42 to form an integral structure. The lower mounting seat 411 is fixedly connected to the upper mounting seat 412 through bolts.

A specific implementation method: correspondingly open bolt holes on the safety stop seat 51, the upper installation seat 412 and the lower installation seat 411, and use bolts to pass through the safety stop seat 51, the upper installation seat 412 and the lower installation seat in sequence from above. 411 holds the three together.

The upper mounting seat 412 is provided with a weight-reducing hole, which can reduce the weight of the primary suspension device 4, thereby reducing the self-weight of the bogie, and improving the traction efficiency of the rail vehicle. The weight-reducing hole is a circular hole provided on the upper mounting seat 412, and the center line extends vertically. 11 and FIG. 38 , the upper mounting seat 412 is fixedly connected with the primary fixing seat interface 10311a at the end of the connecting rod 10311 of the side deck of the first connecting frame through the fixing bolt 1041 for the cabin and the fixing nut 1042 for the cabin .

Further, a wheel-set lifting hoist 43 is used, the top end of which is connected to the primary suspension mounting seat 41 and the bottom end is connected to the axle box 33 to limit the vertical movement of the primary suspension 42 and prevent the primary suspension 42 from producing vertical movement. And it is separated from the axle box 33 .

A specific implementation manner: the top of the axle box 33 is flat, and two primary positioning holes 331 are arranged in the middle, which are arranged at intervals along the longitudinal direction. A limit edge is extended along a direction perpendicular to the centerline of the axle box (ie, the longitudinal direction), and a limit notch 332 is formed on the limit edge. The bottom end of the wheelset lifting 43 extends to both sides to form limit stop protrusions 431 . The wheelset lifting 43 can be embedded in the limiting notch 332 , and the limiting stop protrusion 431 is limited below the limiting edge. The limit edge prevents the wheelset lift 43 from moving upwards.

In addition, two connecting arms 432 are branched upward from the middle of the wheelset lifting hoist 43 , and the two connecting arms 432 are respectively connected to the end surfaces of the lower mounting seat 411 .

This embodiment provides a specific implementation method: the wheel set lifting 43 is a "Y"-shaped structure. During the assembly process, the middle part of the wheel set lifting 43 is inserted into the limit notch 332, and another connecting arm 432 at the top thereof is inserted. They are respectively connected to the longitudinal end faces of the lower mounting seat 411 by bolts, and the limiting stop protrusions 431 at the bottom end are located below the limiting edge.

The longitudinal ends of the lower mounting base 411 are each provided with a wheel set lifter 43, which is connected with the wheelset lifter 43 to limit the longitudinal movement of the wheelset lifter 43, and the axle box 33 restricts the wheelset lifter 43 to move along the longitudinal direction. Move vertically. The above-mentioned solution is adopted to limit the vertical movement of the primary suspension 42 , so as to prevent the movement of the primary suspension 42 from being too large and causing it to detach from the axle box 33 .

The wheelset lifting 43 can also play an auxiliary lifting role when hoisting the bogie. Specifically, during the lifting process, the side beam moves upward, and the wheelset is driven upward through the primary suspension mounting seat and the wheelset lifting 43 move.

The side member 1 provided in this embodiment can be made of composite material, such as carbon fiber composite material, so that it has a certain flexibility and improves the adaptability to the load of the vehicle body. On this basis, a lower backing plate 441 can also be used to be disposed between the side beam 1 and the lower mounting seat 411 , and both sides of the lower backing plate 441 extend upward to the bottom surface higher than the end of the side beam 1 , covering the side beam 1 . side. The lower backing plate 441 can reduce the wear of the side member 1 .

The upper backing plate 442 is arranged between the side beam 1 and the upper mounting seat 412 . The upper backing plate 442 can reduce the wear of the side member 1 .

FIG. 39 is a perspective view of a brake hanger in a bogie provided by an embodiment of the application, FIG. 40 is a schematic diagram of the connection between the brake hanger and a beam provided by an embodiment of the application, and FIG. 41 is a brake hanger provided by an embodiment of the application. An exploded view of the connection between the seat and the beam, FIG. 42 is a cross-sectional view of the connection between the brake hanger and the beam according to an embodiment of the application. As shown in FIGS. 17 , 39 to 42 , the beam main body 21 is provided with a brake hanger connection interface for connecting with the brake hanger 7 .

An implementation manner is as follows: the connection interface of the brake hanger is the brake bolt hole 213 provided on the beam main body 21 , and is connected to the brake hanger 7 through the brake beam connecting bolt 72 .

The brake hanger 7 includes: a hanger main body, which extends in the longitudinal direction and is located above the beam. The middle part of the hanger main body is provided with brake beam connecting holes 71. The number of brake cross beam connecting holes 71 is four, which are symmetrically distributed on both sides of the hanger main body. Brake bolt holes 213 are connected.

The brake hanger 7 can be made of rigid material, or made of composite fiber material. In this embodiment, the brake hanger 7 is made of carbon fiber material. A brake hanger pad 73 is also provided between the brake hanger 7 and the cross beam main body 21 , and a through hole for the brake cross member connecting bolt 72 to pass through is correspondingly formed thereon. The brake hanger pad 73 is used to protect the brake hanger 7 and reduce its wear. Both ends of the brake hanger 7 are provided with interfaces for connecting the brake device. Specifically, four brake device mounting holes 74 are provided on each of the two ends of the brake hanger 7, which are symmetrically arranged on two sides of the hanger main body. side, which is connected to the brake device by bolts.

Further, the bogie is also provided with a bogie cabin, which is enclosed on the outside of the main structure of the bogie to protect the bogie and prevent debris on the railway line from hitting the bogie; it also plays the role of noise reduction and airflow guidance. effect. As shown in Fig. 12 and Fig. 39, the two ends of the brake hanger 7 are respectively provided with interfaces for connecting with the bogie cabin, such as cabin mounting holes 75. The brake hanger is connected to the second connection frame of the bogie cabin through bolts. The brake hanger interface 10321a at the end of the seat connecting rod 10321 is connected by the fixing bolt 1041 for the cabin and the fixing nut 1042 for the cabin.

As shown in FIG. 17 , the beam main body 21 is further provided with an interface for connecting with the vertical shock absorber, for example, vertical shock absorber mounting ears 214 are arranged on the side surface of the beam main body 21 .

FIG. 43 is a schematic perspective view of the connection between the beam and the vertical shock absorber provided by the embodiment of the application, FIG. 44 is an enlarged schematic view of the B area in FIG. 43 , and FIG. 45 is the connection between the beam and the vertical shock absorber provided by the embodiment of the application. FIG. 46 is a schematic diagram of the arrangement position of the vertical shock absorber on the bogie provided by the embodiment of the application. As shown in Figs. 43 to 46, the ends of the vertical dampers 93 are provided with bolt holes. The beam has mounting ears 29, the mounting ears 29 are provided with mounting holes, and the mounting ears 29 are also provided with a limiting surface 291, the limiting surface 291 is at least partially flat, and the plane is used to abut against the first side plane of the first bolt head .

The first fixing bolt 94 has a first screw 943 and a first screw head 941 provided at one end of the first screw 943 . The first screw rod 943 is matched with the mounting hole and the bolt hole, and the first side plane 942 of the first bolt head 941 abuts against the limiting surface 291 .

The upper end portion of the vertical damper 93 is connected to the vehicle body of the rail vehicle. As shown in FIGS. 44 and 45 , bolt holes are provided at the nodes of the lower ends of the vertical dampers 93 . In the direction perpendicular to the axial direction of the vertical damper 93, the bolt holes are provided therethrough.

There may be two vertical vibration dampers 93, and the two vertical vibration dampers 93 are respectively arranged on both sides of the longitudinal centerline. Correspondingly, the beam is provided with two vertical vibration damper interfaces, which are respectively used for installing the two vertical vibration dampers. The beam is provided with two pairs of mounting ears 29 , and each pair includes two opposite mounting ears 29 ; The mounting ears 29 are arranged on the side of the cross member main body 21 and extend along the longitudinal direction of the vehicle body.

The mounting ears 29 include a head end and a tail end, and the head end of the mounting ears 29 is connected to the beam main body of the beam; among the two opposite mounting ears 29, the tail end of one mounting ear 29 faces away from the outer surface of the other mounting ear relative to the The outer surface of the head end of the mounting lug 29 is recessed inwardly; a connection surface is connected between the outer surface of the head end and the outer surface of the tail end, and the connection surface at least partially forms a limit surface 291 . In other words: the mounting ear 29 has a stepped structure; the mounting ear 29 has a first stepped surface and a second stepped surface, and the connecting surface connecting the first stepped surface and the second stepped surface at least partially forms a limiting surface 291 .

The first screw rod 943 of the first fixing bolt 94 is inserted through the bolt hole of the vertical shock absorber 93 and the installation hole of the installation ear 29 . One end of the first screw rod 943 is provided with a first bolt head 941 , and the cross-sectional area of the first screw head 941 is larger than that of the first screw rod 943 . The first bolt head 941 has at least one first side flat 942 .

The head of the bolt includes four sides; two opposite sides are curved and the other two opposite sides are flat. The connection between the first end and the second end of the mounting lug 29 is at least partially flat, and the connection forms a limit surface 291 , which can face to face with one of the first side planes 942 of the first bolt head 941 to reach the limit The purpose of anti-loosening.

It can be understood that the structure of the first bolt head 941 is not limited to this, and the present embodiment is only exemplified here. For example, the first bolt head 941 can also have a regular hexagonal structure. In this case, the first bolt head 941 has six side planes; one of the offsets.

In this example, the limiting surfaces 291 of the mounting ears 29 can be in surface-to-surface contact with the first side planes 942 of the first bolt heads 941 of the first fixing bolts 94 , thereby forming an anti-loosening structure that prevents the first fixing bolts 94 from loosening. In this way, when the first fixing bolt 94 has a tendency to rotate after being impacted, the limiting surface 291 of the mounting ear 29 can counteract the driving of the first fixing bolt 94 by exerting a force on the first side surface 942 of the first bolt head 941 . The impact force of the rotation achieves the purpose of preventing the loosening of the first fixing bolt 94 , which is beneficial to ensure the reliability of the connection between the beam and the vertical shock absorber 93 .

In one possible implementation manner, the first fixing bolt 94 further includes: a first nut 945 that cooperates with the first screw rod 943 ; The bogie further includes: a first adjusting washer 944 , and the first adjusting washer 944 abuts between the first nut 945 and the corresponding mounting ear 29 . The number of the first adjustment pads 944 is adjustable, and the number of the first adjustment pads 944 can be specifically set according to actual needs.

In this example, by adjusting the number of the first adjusting washers 944, the distance between the end of the first nut 945 and the corresponding mounting ears 29 can be adjusted, which is further beneficial to improve the connection reliability of the vertical shock absorber 93 and the traction center pin .

FIG. 46 is a perspective view of a non-power bogie provided by an embodiment of the present application, and FIG. 48 is a perspective view of a power bogie provided by an embodiment of the present application. As shown in Figures 46 and 48, the bogie provided by this embodiment may be a non-power bogie. If a traction motor is provided on the wheelset, the bogie is a power bogie, and the traction motor may be a direct drive motor, whose rotor directly drives the axle to rotate.

The beams in this embodiment also provide interfaces for connecting other components. As shown in FIGS. 17 , 47 and 48 , the beam body 21 is also provided with an interface for connecting the anti-roll torsion bars, for example, an anti-roll torsion bar mounting portion 215 is provided on the side of the beam body 21 . FIG. 49 is a perspective view of an anti-roll torsion bar provided in an embodiment of the present application. As shown in FIG. 49 , the anti-roll torsion bar 101 includes a lateral torsion bar 951 and a vertical torsion bar 952 connected to both ends of the lateral torsion bar 951 .

The lateral torsion bar 951 is arranged horizontally and extends in the lateral direction. Both ends of the lateral torsion bar 951 are bent and extend outward in the longitudinal direction. The vertical torsion bar 952 extends in the vertical direction, and its bottom end is connected to the lateral torsion bar 951 through a torsion bar node 953 . The top end of the vertical torsion bar 952 is connected to the vehicle body through the torsion bar node 953 .

The anti-roll torsion bar 95 is connected to the cross beam through the torsion bar mounting member 954 , and is specifically connected to the anti-roll torsion bar mounting portion 215 through bolts. The torsion bar mount 954 includes an upper mount body and a lower mount body. The bottom of the upper mount body is provided with an upper concave arc groove, and the top of the lower mount body is provided with a concave arc groove; The mounting body is butted, and the upper concave arc groove and the lower concave arc groove are butted to form a circular hole for the transverse torsion bar 951 to pass through. The upper mounting body and the lower mounting body are connected together by bolts, and are connected to the anti-roll torsion bar mounting portion 215 .

FIG. 47 is a perspective view of a non-power bogie provided by an embodiment of the present application, and FIG. 48 is a perspective view of a power bogie provided by an embodiment of the present application. As shown in FIG. 17 and FIGS. 47 and 48 , the cross beam also provides an interface for connecting the anti-serpentine shock absorber 96, specifically, an anti-serpentine shock absorber mounting plate 216 is provided on the outer end of the cross beam main body 21, specifically It includes two horizontal mounting plates arranged up and down, and the longitudinal end face of the horizontal mounting plate is provided with bolt holes for connecting with the anti-serpentine shock absorber 96 through elastic nodes.

FIG. 50 is a schematic structural diagram of a beam connected to an axle box through a single tie rod according to an embodiment of the application. As shown in Figures 17 and 50, the beam also provides an interface for connecting a single tie rod 97, which is connected between the beam and the axle box 33 for transmitting longitudinal forces between the beam and the axle box. Specifically, the beam main body 21 is provided with a single tie rod connecting portion 217, and one end of the single tie rod 97 is provided with a tie rod node 971, which is connected to the single tie rod connecting portion 217 by bolts. The other end of the single tie rod 97 is provided with a tie rod node 971, which is connected to the axle box 33 through bolts. The tie rod node 971 is an elastic node, made of metal and rubber vulcanized, which can buffer the buffer force between the single tie rod, the beam and the axle box, and can better adapt to the longitudinal and lateral pulling force.

Further, as shown in FIG. 17 , a nameplate mounting portion 219 is provided on the beam main body 21 for mounting the nameplate of the bogie. The nameplate mounting portion 219 is an inclined plane, and four corners thereof are provided with screw holes for fixing the nameplate of the bogie to the beam through screws.

On the basis of the above technical solution, the beam 21 is further provided with a center pin connecting portion 218 for cooperating with the traction center pin.

In addition, the top surface of the beam main body 21 is provided with a braking device interface for connecting with the braking device. Specifically, the top surface of the beam main body 21 is provided with a braking installation platform protruding from the top surface of the beam main body, and the braking installation platform is provided with bolt holes for connecting with the braking device as a braking device interface.

In a specific implementation manner, the brake installation platform is integrally formed with the above-mentioned second-series installation platform 212, and is provided with a brake bolt hole 213 for connecting with the brake hanger in the brake device.

Further, a side surface of the beam main body 21 is provided with a vertical shock absorber mounting portion for connecting with the vertical shock absorber. Specifically, the vertical shock absorber mounting portion includes: two vertical shock absorber mounting ears 214 arranged in parallel and protruding from the side surface of the beam main body 21, on which are provided with mounting holes, and the vertical shock absorber extends in the vertical direction , the bottom end is connected with the mounting holes on the two vertical shock absorber mounting ears 214 through bolts, and the top end is connected with the vehicle body.

Further, the bottom surface of the beam main body 21 is provided with an anti-roll torsion bar mounting portion 215 for connecting with the anti-roll torsion bar. Specifically, the anti-roll torsion bar mounting portion is disposed at the bottom of the beam main body 21 , extends along the longitudinal direction, and its two ends extend to protrude from the side surface of the beam main body 21 . The end of the anti-roll torsion bar mounting portion is provided with a vertically extending mounting hole for connecting with the anti-roll torsion bar.

Further, the outer end of the beam main body 21 away from the other beam unit 2 is provided with an anti-snake shock absorber mounting portion for connecting with the anti-snake shock absorber. Specifically, the anti-meandering damper mounting portion includes two anti-meandering damper mounting plates 216 protruding from the end of the beam main body 21 along the lateral direction, the two anti-meandering damper mounting plates extend in the horizontal direction, and the two Aligned up and down. The two anti-snake shock absorber mounting plates are provided with coaxial mounting holes for connecting with the anti-snake shock absorbers.

Further, the side of the beam main body 21 is provided with a single tie rod connecting portion 217 for connecting with a single tie rod, and a mounting hole is provided on it for connecting with one end of the single tie rod through bolts, and the other end of the single tie rod is connected with the axle in the wheelset. Boxes are connected to transmit traction or braking force between the beam and the wheelset.

13 and 16 , the bottom surface of the beam main body 21 is further provided with a second connecting frame mounting portion 21a. The beam connecting ports 10322a of the beam connecting rods 10322 of the front and rear second connecting frames and the second connecting frame mounting portion 21a are fixedly connected by the fixing bolts 1041 for the cabin, the spacers 1043 for the cabin and the fixing nuts 1042 for the cabin.

In this way, the fixed connection between the second connection frame and the beam main body 21 is realized.

The top surface of the beam main body 21 is also provided with a nameplate mounting portion 219 for mounting the nameplate of the bogie. The surface of the nameplate mounting portion 219 is flat, and is provided at the outer end of the second-series mounting table 212 .

The beam provided in this embodiment provides interfaces for multiple components, integrates the installation of multiple components, and has a high degree of integration. Reduce processing workload and reduce production costs.

Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

A bogie cabin for a rail vehicle, characterized by comprising a cabin body assembly, the cabin body assembly comprising:

main deck;

two side decks, the two side decks are fixed on both sides of the main deck, and together with the main deck, form a cavity for accommodating a rail vehicle bogie;

Wherein, the inner side of the main deck is used for fixing with the front or the rear of the bogie to separate the front or rear of the bogie from the outside world; the inner sides of the two side decks are used for fixing with the side of the bogie , which separates the side of the bogie from the outside world.
The bogie cabin according to claim 1, wherein the main deck is specifically used to cover the inner edges of the two side beams of the bogie frame in the width direction and cover the inner edges of the two side beams of the bogie frame in the height direction when being fixed to the bogie. The part located between the two side members of the bogie frame;

The side deck is specifically used to cover the side beam of the bogie frame and the side of the bogie in the width direction, and cover the upper surface of the side beam of the bogie frame in the height direction when it is fixed to the bogie. The lower part of the direction covers the parts mounted on the side beams of the bogie frame;

The main deck is a main deck with a streamlined outer surface, and the side deck is a side deck with a streamlined outer surface;

Wherein, the outer surface of the main deck and the outer surface of the side deck are used for guiding the airflow to flow along the outer surface of the bogie compartment, so as to reduce the airflow entering the bogie compartment.
The bogie compartment according to claim 2, wherein the side deck is specifically used to cover the braking of the bogie on the side of the side deck away from the main deck when it is fixed to the bogie unit;

The side deck is also used to guide the airflow entering from the upper end and/or the lower end of the main deck to the braking unit of the bogie, so as to cool the braking unit;

The bogie cabin further includes a sound-absorbing panel; the sound-absorbing panel is fixed on the inner side of the main cabin panel, and/or the sound-absorbing panel is fixed on the inner side of the side cabin panel.
The bogie bay according to claims 1 to 3, further comprising a first connecting frame, the first connecting frame comprising:

The connecting rod of the side deck has one end connected with the inner side of the side deck through a rubber node, and the other end has a fixed seat interface;

the main deck connecting rod, one end is connected with the inner side of the main deck through a rubber joint, and the other end is fixed with the side deck connecting rod;

Wherein, the first series of fixed seat interfaces of the connecting rod of the side deck are used to connect with the first series of spring fixed seats of the bogie;

the side deck connecting rod is higher than the main deck connecting rod;

The first connecting frame further includes a first connecting frame reinforcing rod, one end of which is fixed with the connecting rod of the side deck, and the other end is fixed with the connecting rod of the main deck, so as to strengthen the strength of the first connecting frame.
The bogie bay of claim 4, further comprising a second connecting frame, the second connecting frame comprising:

The connecting rod of the brake hanger has one end connected with the position of the inner side of the side deck away from the main deck through a rubber node, and the other end has a brake hanger interface;

Wherein, the brake hanger interface of the brake hanger connecting rod is used for connecting with the brake unit hanger of the bogie;

The second connecting frame also includes:

a beam connecting rod, one end of which is connected with the inner side of the side deck plate away from the main deck through a rubber joint, and the other end is provided with a beam interface; the beam connecting rod is located under the connecting rod of the brake hanger;

Wherein, the beam interface of the beam connecting rod is used for connecting with the beam of the bogie;

The second connecting frame also includes:

The second connecting frame reinforcing rod, one end is fixed with the connecting rod of the brake hanger, and the other end is fixed with the connecting rod of the beam;

The second connecting frame reinforcing rods are two and are arranged in parallel.
The bogie cabin according to claim 5, wherein there are two cabin components, and the beam interfaces of the two beam connecting rods are connected, and the connection is used for connecting with the beam of the bogie.
The bogie cabin according to claim 4, characterized in that, two sides of the main deck are respectively provided with main deck through holes;

The side of the side deck close to the main deck has a side deck through hole in the shape of a stepped hole, and the larger diameter of the side deck through hole is far away from the main deck and the hole wall is anti-rotation. polygonal structure;

a first anti-rotation bolt, a straight prismatic first anti-rotation platform is formed at one end of the screw rod of the first anti-rotation bolt close to the head;

The screw rods of the first anti-rotation bolts pass through the side deck through holes and the main deck through holes, and the first anti-rotation platform is clamped in a section with a larger diameter of the side deck through holes, In cooperation with the first nut, the main deck and the side deck are fixed.
The bogie bay according to claim 7, wherein the main deck comprises a main deck mounting seat, and the main deck mounting seat comprises:

the main deck mounting seat body is formed on both sides of the main deck;

The anti-rotation seat is fixed on the body of the main deck mounting seat, the anti-rotation seat is provided with two anti-rotation protruding strips arranged oppositely, and the through hole of the main deck is on the two anti-rotation protruding strips between and through the main deck mounting seat body and the anti-rotation seat, the middle of the anti-rotation protruding strip is provided with an anti-rotation groove;

a first anti-rotation shrapnel, the anti-rotation shrapnel has a circular through hole;

The screw rod of the first anti-rotation bolt also passes through the circular through hole of the first anti-rotation shrapnel, and the first nuts are respectively pressed on both sides of the first anti-rotation shrapnel. Both ends of the first anti-rotation elastic piece are respectively clamped in the anti-rotation groove.
The bogie cabin according to claim 8, wherein the main deck through holes are elongated main deck through holes.
The bogie cabin according to claim 9, wherein a plurality of the main deck mounting seats are provided at intervals from top to bottom on both sides of the main deck;

The number of the anti-rotation seat, the first anti-rotation shrapnel and the through holes of the side deck is matched with the number of the main deck mounting seat.
The bogie cabin according to claim 10, wherein the bogie cabin further comprises an anti-rotation mounting structure, and the anti-rotation mounting structure comprises:

The anti-rotation convex seat is formed on the inner side of the deck, and the anti-rotation convex seat has a step hole; the hole wall of a section with a larger diameter in the step hole of the anti-rotation convex seat is an anti-rotation polygon structure; wherein, the The deck includes main deck and side deck;

an anti-rotation concave seat, the anti-rotation concave seat has a through hole, and the anti-rotation concave seat is buckled on the anti-rotation convex seat;

a second anti-rotation bolt, a right prismatic second anti-rotation platform is formed at one end of the screw rod of the second anti-rotation bolt close to the head;

The screw rod of the second anti-rotation bolt passes through the stepped hole of the anti-rotation convex seat and the through hole of the anti-rotation concave seat, and the second anti-rotation table is clamped in the stepped hole of the anti-rotation convex seat In a section with a larger diameter, it is matched with a second nut to fix the anti-rotation boss and the deck.
The bogie compartment according to claim 11, wherein two anti-rotation notches are symmetrically arranged on a side of the anti-rotation recess away from the anti-rotation convex seat;

a second anti-rotation shrapnel, the second anti-rotation shrapnel has a circular through hole;

The screw rod of the second bolt also passes through the circular through hole of the second anti-rotation shrapnel, and the second nuts are respectively pressed on both sides of the second anti-rotation shrapnel. The anti-rotation shrapnel is stuck in the anti-rotation recess.
The bogie cabin according to claim 12, wherein the through hole of the anti-rotation recess is an elongated through hole.
The bogie compartment according to claim 13, characterized in that, in the position where the side deck plate is connected with the side compartment connecting rod of the first connecting frame, the position between the side deck plate and the second connecting frame is The position where the connecting rod of the movable hanger is connected, and the position where the side deck plate is connected with the connecting rod of the beam of the second connecting frame, are respectively provided with the anti-rotation installation structure;

The side cabin connecting rod, the brake hanger connecting rod and the cross beam connecting rod are respectively connected at the anti-rotation mounting structures at their respective positions.
A bogie system, characterized in that it includes:

bogie;

The bogie cabin according to any one of claims 1 to 14, wherein the inner side of the bogie cabin is connected with the bogie, a first preset interval is maintained between the main deck and the bogie, and the side maintaining a second preset interval between the deck and the bogie;

The main deck is a composite main deck, and the side deck is a composite side deck.