CN117962942A

CN117962942A - Bogie and rail vehicle

Info

Publication number: CN117962942A
Application number: CN202410235497.9A
Authority: CN
Inventors: 吴胜权; 陈彦宏; 郭涛; 段泽斌; 贾超; 王家鑫; 许红江; 郝涛广; 商好强; 张汉辰; 王俊锋; 高峰
Original assignee: CRRC Tangshan Co Ltd
Current assignee: CRRC Tangshan Co Ltd
Priority date: 2023-10-27
Filing date: 2024-03-01
Publication date: 2024-05-03
Anticipated expiration: 2044-03-01
Also published as: CN117962944A; WO2025180020A1; CN117962947A; CN117961440A; CN118293169A; CN117962943A; CN118144834A; CN118144835A; CN117962942B; WO2025087007A1; CN117962944B; CN118046937A; WO2025180019A1; CN117962949A; CN118188732A; CN117985063A; CN117962943B; CN117962949B; CN222179494U; WO2025087006A1

Abstract

The embodiment of the application provides a bogie and a railway vehicle, wherein the bogie comprises: the side beams are of box-shaped structures, and the inner space of each side beam is used as an additional air chamber; the air spring is arranged on the side beam; the inner space of the air spring is communicated with the additional air chamber; the air water filtering device comprises a water filtering main path, a first water filtering branch path, a second water filtering branch path and a transmission mechanism; one end of the water filtering main path is communicated with the additional air chamber, and the other end of the water filtering main path is respectively connected with the first water filtering branch path and the second water filtering branch path; the first water filtering branch is provided with a driving wind wheel which is connected with a driving end in the transmission mechanism; the second water filtering branch is provided with a compression wind wheel which is connected with a driven end in the transmission mechanism; the second water filtering branch is connected to the additional air chamber through the air filter. The bogie and the railway vehicle provided by the embodiment of the application can dry the gas in the additional air chamber so as to remove the moisture in the additional air chamber and reduce the corrosion probability of the box-shaped structure.

Description

Bogie and rail vehicle

Technical Field

The application relates to a track vehicle running technology, in particular to a bogie and a track vehicle.

Background

The bogie is one of important parts of the railway vehicle and bears the functions of carrying the vehicle body and running. The bogie is provided with an air spring, and the vertical force between the bogie and the car body is buffered by compressed air in the air spring so as to reduce the vibration of the car body. In order to improve the cushioning capacity of the air spring, an additional chamber can be formed by adopting a closed box structure, so that the capacity of compressed air is improved, and the vertical rigidity borne by the air spring is reduced.

The existence of the day-night temperature difference can lead to the generation of condensed water on the inner wall of the compressed box structure, and the density of oxygen in the compressed air is larger, so that corrosion is easier to occur in the box structure. Especially in coastal cities, the salt content in the air is higher, the corrosion of the box structure is aggravated, the box structure is easy to damage, a large amount of compressed air is lost, the air spring is invalid, and the reliability of the air spring is reduced.

Disclosure of Invention

In order to solve one of the above technical drawbacks, an embodiment of the present application provides a bogie and a railway vehicle.

According to a first aspect of an embodiment of the present application, there is provided a bogie comprising:

A side beam; the side beams are of box-shaped structures, and the inner space of each side beam is used as an additional air chamber;

An air spring arranged on the side beam; the inner space of the air spring is communicated with the additional air chamber;

An air water filtering device; the air water filtering device comprises: the device comprises a water filtering main path, a first water filtering branch path, a second water filtering branch path and a transmission mechanism; one end of the water filtering main path is communicated with the additional air chamber, and the other end of the water filtering main path is respectively connected with the first water filtering branch path and the second water filtering branch path; the first water filtering branch is provided with a driving wind wheel which is connected with a driving end in the transmission mechanism; the second water filtering branch is provided with a compression wind wheel which is connected with a driven end in the transmission mechanism; the second water filtering branch is connected to the additional air chamber through the air filter.

According to a second aspect of an embodiment of the present application, there is provided a railway vehicle comprising: a bogie as described above.

According to the technical scheme provided by the embodiment of the application, the inner space of the side beam of the box-shaped structure is used as the additional air chamber, the air spring is arranged on the side beam, and the inner space of the air spring is communicated with the additional air chamber; the air water filtering device comprises: the device comprises a water filtering pipeline, a first water filtering branch, a second water filtering branch and a transmission mechanism; one end of the water filtering pipeline is communicated with the additional air chamber, and the other end of the water filtering pipeline is respectively connected with the first water filtering branch and the second water filtering branch; the first water filtering branch is provided with a driving wind wheel which is connected with a driving end in the transmission mechanism; the second water filtering branch is provided with a compression wind wheel which is connected with a driven end in the transmission mechanism; the second water filtering branch is connected to the additional air chamber through the air filter. The air water filtering device can dry the air in the additional air chamber to remove the moisture in the additional air chamber, reduce the probability of corrosion of the box structure, prolong the service life of the framework, improve the reliability of the framework and the secondary suspension device, and ensure the driving safety.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:

Fig. 1 is a schematic structural view of a bogie according to an embodiment of the present application;

Fig. 2 is a schematic structural view of a frame in a bogie according to an embodiment of the present application;

FIG. 3 is a schematic view of a portion of a frame in a bogie according to an embodiment of the present application;

FIG. 4 is a schematic view of a side sill in a bogie according to an embodiment of the present application;

FIG. 5 is a schematic view of a portion of a side sill in a bogie according to an embodiment of the present application;

FIG. 6 is a schematic view of an air-water filter device in a bogie provided by an embodiment of the present application;

FIG. 7 is an enlarged view of area A of FIG. 5;

FIG. 8 is a partial cross-sectional view of a frame and air springs in a truck provided in accordance with an embodiment of the present application;

FIG. 9 is an enlarged view of region B of FIG. 8;

FIG. 10 is a cross-sectional view of an air spring and side rail provided in an embodiment of the present application;

FIG. 11 is an enlarged view of region C of FIG. 10;

FIG. 12 is a schematic diagram of an air spring according to an embodiment of the present application;

FIG. 13 is a schematic diagram of an air spring according to an embodiment of the present application bearing a second load;

FIG. 14 is a schematic view showing the variation of the air spring bottom spring member of the bogie according to the present application under different loads;

FIG. 15 is a schematic view of a bottom angle of a bogie frame according to an embodiment of the present application;

FIG. 16 is an exploded view of a frame in a truck provided in an embodiment of the present application;

Fig. 17 is a schematic structural view of a beam in a bogie according to an embodiment of the present application;

FIG. 18 is a schematic view of a portion of a cross member of a bogie according to an embodiment of the present application;

FIG. 19 is a schematic view of a primary mounting seat in a truck assembly according to an embodiment of the present application;

FIG. 20 is a schematic top view of a primary suspension device according to an embodiment of the present application;

FIG. 21 is a schematic view illustrating a bottom view of a primary suspension device according to an embodiment of the present application;

FIG. 22 is a cross-sectional view of a primary suspension device according to an embodiment of the present application;

FIG. 23 is an enlarged view of region D of FIG. 22;

FIG. 24 is a schematic top view of a suspension base in a primary suspension device according to an embodiment of the present application;

FIG. 25 is a cross-sectional view of a suspension base in a primary suspension device according to an embodiment of the present application;

FIG. 26 is a schematic view showing the structure of a suspension pin in a primary suspension device according to an embodiment of the present application;

FIG. 27 is another angular schematic view of a suspension pin in a primary suspension device according to an embodiment of the present application;

fig. 28 is a schematic structural view of a bottom cabin device provided in an embodiment of the present application disposed on a bogie;

Fig. 29 is a schematic top view angle structure of a bottom cabin device according to an embodiment of the present application;

FIG. 30 is another schematic top view of a bottom bay apparatus according to an embodiment of the present application;

FIG. 31 is a schematic view showing a bottom view of a bottom deck device according to an embodiment of the present application;

FIG. 32 is a schematic view of another embodiment of a bottom bay device provided in the present application;

FIG. 33 is another schematic view of a bottom bay device according to an embodiment of the present application disposed on a bogie;

FIG. 34 is a schematic view of a base unit coupled to a frame via a boom assembly according to an embodiment of the present application;

FIG. 35 is an enlarged view of area E of FIG. 29;

fig. 36 is a cross-sectional view of a base unit coupled to an axle housing via a wire rope damper according to an embodiment of the present application.

Reference numerals:

11-side beams; 11 a-a side sill main body; 11 b-a hollow spring mounting portion; 11c, a hollow spring mounting hole; 111-side sill upper cover plate; 112-side sill lower cover plate; 113-side beam inner vertical plates; 114-side beam outer risers; 1141-a riser through hole; 1142-a riser notch; 115-hollow spring mounting vertical plates; 116-a first additional chamber; 117-a second additional chamber; 118-side sill inner panel; 1181-inner plate through holes; 1182-inner panel vent gap; 1183-liquid passage port; 12-a cross beam; 141-a water filtering main way; 142-a first drainage branch; 143-a second drainage branch; 144-driving the wind wheel; 145-compressing the wind wheel; 146-air filter; 1471-a drive gear; 1472-a driven gear; 148-a control assembly; 149—humidity sensor; 1410-a one-way gas valve;

177-additional air cells;

2-wheel pairs;

3-a primary suspension device;

4-secondary suspension means; 41-an air spring; 42-hollow spring guide posts; 43-elastic member; 44-a hollow spring mounting sleeve; 45-adjusting the gap.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of exemplary embodiments of the present application is provided in conjunction with the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present application and not exhaustive of all embodiments. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.

The embodiment provides a bogie which can be applied to a railway vehicle. The rail vehicle may be a fuel-powered vehicle, a gas-powered vehicle, or an electric-powered vehicle. The vehicle can be a common speed train, a motor train unit, a subway, a light rail and the like.

In the present embodiment, the vehicle length direction is referred to as the longitudinal direction, the vehicle width direction is referred to as the lateral direction, and the vehicle height direction is referred to as the vertical direction, or the vertical direction.

As shown in fig. 1, 2 and 3, the bogie includes: a frame, a wheel set 2, a primary suspension 3 and a secondary suspension 4. Wherein the frame comprises: the side members 11 and the cross member 12, the two side members 11 are arranged in parallel, and the cross member 12 is connected between the two side members 11.

The wheel set 2 is provided at an end of the side member 11, the wheel set 2 includes an axle 21, wheels 22 provided on the axle 21, and an axle box 23, and the axle box 23 is located inside the wheels 22, constituting a built-in axle box bogie. A series of suspension units 3 are provided between the axle boxes and the side members 11 for dampening forces between the frame and the wheelsets. A secondary suspension device 4 is arranged between the framework and the vehicle body.

As shown in fig. 2,3, 4 and 5, the side member 11 includes a side member main body 11a and a hollow spring mounting portion 11b, and the hollow spring mounting portion 11b is provided outside the middle portion of the side member main body 11 a. The hollow spring mounting portion 11b is provided with a hollow spring mounting hole 11c for mounting the secondary suspension device 4, and an elastic member 43 is provided in the hollow spring mounting hole 11 c.

The side member 11 has a box-like structure with an internal space as an additional chamber. As shown in fig. 4, 8 and 9, the secondary suspension device 4 includes an air spring 41 and an air spring guide post 42, and the air spring guide post 42 is disposed at the bottom of the air spring 41. The air spring 41 is provided on the side member, and the air spring guide post 42 is inserted into the air spring mounting hole 11c of the side member 11, and the inner space of the air spring 41 communicates with the additional air chamber 177. The top of the air spring 41 is connected to the vehicle body to bear the load of the vehicle body.

The air filter is provided on the frame, and may be provided on the cross member 12 or on the side member 11. As shown in fig. 6, the air water filtering apparatus includes: the water filtering main path 141, the first water filtering branch path 142, the second water filtering branch path 143 and the transmission mechanism. One end of the water filtering main path 141 is communicated with the additional air chamber 177, and the other end is respectively connected with the first water filtering branch path 142 and the second water filtering branch path 143. The first drainage branch 142 is provided with a driving wind wheel 144, and the driving wind wheel 144 is connected with a driving end in the transmission mechanism. The second water filtering branch 143 is provided with a compression wind wheel 145, and the compression wind wheel 145 is connected with a driven end in the transmission mechanism. The second water filtering branch 143 is connected to the additional air cell 177 via an air filter 146.

The high pressure gas in the additional plenum 177 enters the first and second water filter branches 142 and 143, respectively, from the water filter main 141 (as indicated by the single arrow in fig. 6). Under the power action of the high-pressure gas entering the first water filtering branch 142, the driving wind wheel 144 is driven to rotate to drive the driving end in the transmission mechanism to act, and the driven end is driven to act, so that the compression wind wheel 145 is driven to rotate, and the high-pressure gas entering the second water filtering branch 143 is further compressed to increase the gas pressure (as shown by double arrows in fig. 6). The pressurized compressed gas passes through the air filter 146, the air filter 146 separates moisture from the compressed gas, and the dried compressed gas returns to the additional air chamber 177.

According to the technical scheme provided by the embodiment, the side beam inner space of the box-shaped structure is used as an additional air chamber 177, the air spring is arranged on the side beam, and the inner space of the air spring is communicated with the additional air chamber 177; the air water filtering device comprises: the device comprises a water filtering pipeline, a first water filtering branch, a second water filtering branch and a transmission mechanism; one end of the water filtering pipeline is communicated with the additional air chamber 177, and the other end of the water filtering pipeline is respectively connected with the first water filtering branch and the second water filtering branch; the first water filtering branch is provided with a driving wind wheel which is connected with a driving end in the transmission mechanism; the second water filtering branch is provided with a compression wind wheel which is connected with a driven end in the transmission mechanism; the second water filtering branch is connected to the additional air cell 177 via an air filter. The air water filtering device can dry the air in the additional air chamber 177 to remove the moisture in the additional air chamber 177, reduce the probability of corrosion of the box structure, prolong the service life of the framework, improve the reliability of the framework and the secondary suspension device, and ensure the driving safety.

On the basis of the technical scheme, the transmission mechanism can adopt mechanisms such as a chain wheel, a gear and the like. In this embodiment, the transmission mechanism includes: a driving gear 1471 and a driven gear 1472 meshed with each other, the driving gear 1471 is connected to the driving wind wheel 144 to rotate synchronously, and the driven gear 1472 is connected to the compression wind wheel 145 to rotate synchronously. The number of teeth of the driving gear 1471 is greater than the number of teeth of the driven gear 1472, the rotation speed of the driven gear 1472 is greater than the rotation speed of the driving gear 1471, and the rotation speed of the driven gear 1472 is faster, so that the compression wind wheel 145 is driven to rotate rapidly, and air is further compressed and pressurized.

Further, a control unit 148 is disposed in the first water filtering branch 142 for controlling the first water filtering branch 142 to be started. The control assembly 148 may include: the controller, the relay, the solenoid valve, etc., and the controller periodically controls the solenoid valve to be opened through the relay so that the compressed air in the additional air cell 177 is introduced into the two water filtering branches through the water filtering main path 141, respectively, and dried according to the above scheme. For example: the solenoid valve is opened for drying during a period of low daily temperature.

Further, a humidity sensor 149 is provided in the additional air cell 177. The humidity sensor 149 is electrically connected to the control assembly 148. The humidity sensor 149 detects the humidity in the additional air cell 177, and when the humidity is greater than a preset value, the control assembly 148 controls the solenoid valve to open for drying, so as to dry the additional air cell 177 according to the actual humidity condition.

Further, a one-way gas valve 1410 is provided in the second water filtering branch 143, specifically between the air filter 146 and the additional air chamber 177, so that the compressed gas after being dried by the air filter 146 can only flow to the additional air chamber 177.

On the basis of the above technical solution, the present embodiment provides an implementation manner of the side beam 11:

as shown in fig. 3 and 4, the side member 11 includes a side member main body 11a and a hollow spring mounting portion 11b, and the hollow spring mounting portion 11b is provided in the middle of the side member main body 11a and is located outside the side member main body 11 a.

As shown in fig. 5 and 7, the air spring mounting portion 11b has a box-shaped structure having a first additional chamber 116 therein, and the side member main body 11a has a box-shaped structure having a second additional chamber 117 therein, the first additional chamber 116 communicating with the second additional chamber 117. Both the first additional chamber 116 and the second additional chamber 117 may serve as the additional air chamber 177. Specifically, in the present embodiment, the second additional chamber 117 is taken as an example of the additional air chamber 177.

The hollow spring mounting portion 11b is provided with a hollow spring mounting sleeve 44 therein, an inner space of the hollow spring mounting sleeve 44 is for communication with a gas chamber inside the air spring, and an inner space of the hollow spring mounting sleeve 44 is also for communication with the first additional chamber 116. The hollow spring guide post 42 is inserted into the hollow spring mounting sleeve 44, and the hollow spring guide post 42 is also of a hollow structure and is respectively communicated with the air chamber inside the air spring and the inner space of the hollow spring mounting sleeve 44.

The first additional chamber 116 in the air spring mounting portion 11b and the second additional chamber 117 in the side member main body 11a can provide an auxiliary gas space, thereby improving the cushioning ability of the air spring, which is advantageous in damping the vibration of the vehicle cabin.

On the basis of the above technical solution, this embodiment further provides an implementation manner of the side beam body 11a, as shown in fig. 4 to 5, the side beam body 11a includes: the side member upper cover plate 111, the side member lower cover plate 112, the side member inner vertical plate 113 and the side member outer vertical plate 114, and the side member lower cover plate 112 is connected between the bottom ends of the side member inner vertical plate 113 and the side member outer vertical plate 114, and the side member upper cover plate 111 is connected between the top ends of the side member inner vertical plate 113 and the side member outer vertical plate 114. The side member upper cover 111, the side member lower cover 112, the side member inner panel 113, and the side member outer panel 114 are connected to form a side member main body of a box-like structure, and the inner space thereof serves as a second additional chamber 117.

The present embodiment also provides an implementation manner of the air spring mounting portion 11b, as shown in fig. 4 to 5, the air spring mounting portion 11b includes: air spring mounting riser 115. Both ends of the air spring mounting riser 115 are bent toward the side member outer riser 114 with respect to the middle of the air spring mounting riser 115 and connected to the side member outer riser 114. The side sill upper cover 111 extends outwardly and is connected to the top end of the air spring mounting riser 115 and the side sill lower cover 112 extends outwardly and is connected to the bottom end of the air spring mounting riser 115. The air spring mounting riser 115, the side sill upper cover 111, the side sill lower cover 112 and the side sill outer riser 114 enclose a first additional cavity 116.

The portion of the side sill upper cover 111 extending to the first additional chamber 116 is provided with a through hole, which is a hollow spring mounting hole 11c. The air spring mounting sleeve 44 is located in the first additional chamber 116 and is fixed to the inner surface of the side sill upper cover 111 in communication with the air spring mounting hole 11c. The bottom of the air spring mounting sleeve 44 is suspended so that the interior space of the air spring mounting sleeve 44 communicates with the first additional chamber 116. The bottom of the air spring is provided with an air spring guide post 42, and the bottom end of the air spring guide post 42 is opened so that the first additional chamber 116 is communicated with the chamber inside the air spring.

Further, a panel through hole 1141 is formed in the side member outer panel 114, and the panel through hole 1141 communicates the first additional chamber 116 with the second additional chamber 117. Specifically, the number of the riser through holes 1141 is two, and they are arranged in order along the longitudinal direction of the side member outer riser 114.

Further, the bottom end of the side member outer vertical plate 114 is further provided with a vertical plate notch 1142, which allows the first additional chamber 116 and the second additional chamber 117 to communicate with each other, and allows water in the air spring attachment portion 11b to drain from the vertical plate notch 1142 into the side member main body 11a and then out of the drain hole in the bottom of the side member main body 11 a.

On the basis of the above-described technical solution, the side member main body 11a further includes: side sill inner panels 118. The side member inner panel 118 is connected between the side member inner panel 113 and the side member outer panel 114, and the plurality of side member inner panels 118 are arranged at intervals along the longitudinal direction of the side member main body 11 a. The inclination angle of the side sill inner panel 118 may be set according to a shape change of the side sill 11, for example, the side sill inner panel 118 is perpendicular to the side sill lower cover 112 or perpendicular to the side sill upper cover 111.

The side sill inner panel 118 is provided with an inner panel through hole 1181, and the inner panel through hole 1181 may be located in the middle of the side sill inner panel 118. The side sill inner panel 118 separates the second additional chamber 117 into a plurality of small spaces, each of which communicates through an inner panel through hole 1181.

Further, the top of the side sill inner panel 118 is recessed downwardly to form an inner panel vent gap 1182. The bottom end of the side sill inner panel 118 is provided with a liquid passage opening 1183 for facilitating liquid flow therethrough. The liquid at the end of the second additional chamber 117 may flow from the liquid passing port 1183 to the middle of the side sill and then drain from the drain hole at the bottom of the side sill. The liquid passing port 1183 is provided at a position apart from the side sill inner panel 118 and connected to the side sill inner panel 113 and the side sill outer panel 114, respectively. For example: the liquid passing port 1183 is located at an intermediate position of the bottom of the side sill inner panel 118.

Since both side edges of the side sill inner panel 118 are welded to the side sill inner panel 113 and the side sill outer panel 114, respectively, the liquid passing opening 1183 is provided in the middle of the bottom of the side sill inner panel 118 to avoid interference with the welding point, thereby ensuring the welding strength.

On the basis of the technical solution, the present embodiment further provides an implementation manner in which the secondary suspension device 4 is connected to the side beam 11: as shown in fig. 10 to 14, the hollow spring mounting sleeve 44 has an inner space as the hollow spring mounting hole 11c, and an elastic member 43 is provided in the hollow spring mounting sleeve 44.

The traction device 4 comprises an air spring 41 and an air spring guide post 42, wherein the air spring guide post 42 is arranged at the bottom of the air spring 41. The hollow spring guide post 42 is inserted into the hollow spring mounting hole 11c to be in contact with the elastic member 43. The top of the air spring 41 is connected to the vehicle body to bear the load of the vehicle body.

As shown in fig. 12, when the external load applied to the air spring 41 is a relatively large first load, the air spring 41 falls on the top surface of the air spring mounting portion 11b, and the air spring guide post 42 applies pressure to the elastic member 43 to compress the elastic member 43.

As shown in fig. 13, when the external load applied to the air spring 41 is a relatively small second load, the second load is smaller than the rebound force of the elastic member 43, and the rebound force of the elastic member 43 lifts the air spring 41 upward, so that an adjustment gap 45 is left between the air spring 41 and the air spring mounting portion 11b, and an adjustment pad can be inserted into the adjustment gap 45 to adjust the height of the air spring. The second load may be zero or less than the spring force of the spring.

In the production or maintenance process of the bogie, after the components at the top of the air spring are jacked up by the jack in the static pressure stage, the air spring automatically moves upwards and is separated from the framework under the action of the rebound force of the elastic piece 43, so that the adjusting pad is conveniently inserted into the gap between the air spring and the framework. The part at the top of the air spring can be a car body, and the car body is heightened by adopting a car lifting jack; the part at the top of the air spring can also be a sleeper beam, and the sleeper beam is jacked up by a jack.

In this scheme, when the second load that air spring received is less than the resilience force of elastic component or the second load is zero, under the resilience force effect of elastic component, air spring is automatic to rise, namely only need jack-up this step of part above the air spring can insert the operation of adjusting the pad, the step of jack-up air spring in having saved traditional scheme can alleviate work load by a wide margin, improve work efficiency, and because do not adopt the instrument jack-up air spring, just avoided causing the damage to air spring yet, prolong its life, improve the reliability.

Specifically, the lower inner wall of the hollow spring mounting sleeve 44 is provided with a stepped surface, and the elastic member 43 is provided on the stepped surface.

The elastic member 43 may be made of a material having a certain elastic deformation capability, for example: and a steel spring.

The right view in fig. 14 shows the elastic member 43 in a free state, and the height of the elastic member 43 is H3. The left view in fig. 14 shows that the elastic member 43 is compressed to the overall height H1 when the air spring receives the first load. In the middle diagram of fig. 14, after the car body or the sleeper beam is jacked up, the elastic member 43 is only under the gravity action of the air spring, the gravity action is smaller than the rebound force of the elastic member 43, and the whole height of the elastic member 43 is H2, so that the air spring is jacked up.

On the basis of the above-described configuration, as shown in fig. 4 and 16, the portion of the inner side member upper cover 111 that exceeds the side member inner panel 113 serves as the side member upper connection end 1111, and the portion of the inner side member lower cover 112 that exceeds the side member inner panel 113 serves as the side member lower connection end 1121.

As shown in fig. 17 and 18, the cross beam 12 includes: the beam upper cover plate 121, the beam lower cover plate 122 and the beam outer vertical plate 123, the beam upper cover plate 121 is connected to the top end of the beam outer vertical plate 123, and the beam lower cover plate 122 is connected to the bottom end of the beam outer vertical plate 123. The portions of the beam outer panel 123 at both ends beyond the beam upper cover 111 serve as beam connecting ends 1231, and the beam connecting ends 1231 are interposed between the side member upper connecting ends 1111 and the side member lower connecting ends 1121 and connected to the side member inner panel 113. The cross member upper cover 121 is butt-joined to the side member upper connecting end 1111 and the cross member lower cover 122 is butt-joined to the side member lower connecting end 1121.

For the split structure of the side beam and the cross beam, through holes are usually formed in the side beam in the traditional scheme, and the cross beam penetrates through the through holes of the side beam to be connected and fixed. In order to ensure that the strength of the side beams meets the requirements, the side beams must be large enough to meet the requirements of the penetrating cross beams and the bearing capacity of the vehicle, but the size and the weight of the side beams are increased, and the difficulties of design and manufacture, transportation and assembly of the framework are further increased. The scheme provided by the embodiment does not need to connect the opening on the side beam with the cross beam, so that the size and the weight of the side beam can be reduced under the condition of meeting the strength of the side beam, and the lightweight design of the bogie is facilitated.

On the basis of the above technical solution, the cross beam 12 further includes: and a beam inner riser 124. The beam inner vertical plate 124 encloses a cylindrical structure, and serves as a center pin hole 1241, and a traction pin in the traction device can be inserted into the center pin hole to transmit traction force or braking force with the beam. The beam inner standing plate 124 is located between the two beam outer standing plates 123, the beam upper cover plate 121 is connected between the beam inner standing plate 124 and the top of the beam outer standing plate 123, and the beam lower cover plate 122 is connected between the beam inner standing plate 124 and the bottom of the beam outer standing plate 123.

The number of the beam upper cover plates 121 is two, and the beam upper cover plates are respectively positioned at two sides of the beam inner vertical plate 124 and are connected between the beam inner vertical plate 124 and the beam outer vertical plate 123. The number of the beam lower cover plates 122 is two, and the beam lower cover plates are respectively positioned at two sides of the beam inner vertical plate 124 and connected between the beam inner vertical plate 124 and the beam outer vertical plate 123.

The two beam upper cover plates 121 and the two beam lower cover plates 122 are connected between the beam inner vertical plates 124 and the beam outer vertical plates 123, so that the strength of the beam can be improved, the beam inner vertical plates 124 enclose a space into which traction pins can be inserted, and traction force and braking force can be transmitted between the vehicle body and the framework.

A specific scheme is as follows: the transverse length of the beam upper cover 121 is smaller than the beam inner riser 124. Correspondingly, the number of the upper connecting ends 111 of the side beams is two, and the two sides of the upper connecting ends are respectively inserted into the inner vertical plates 124 of the cross beams to be in butt joint with the upper cover plates 121 of the cross beams.

Further, the beam 12 further includes a beam end plate 125, and the beam end plate 125 extends vertically and is connected between the beam inner riser 124 and the beam outer riser 123. The beam end plate 125, the beam upper cover plate 121, the beam lower cover plate 122, the beam outer vertical plate 123 and the beam inner vertical plate 124 enclose a hollow box structure. The cross beam end plate 125 is provided with a through hole for reducing weight and also serves as a vent hole to keep the inside of the box structure dry.

Further, the beam 12 further includes a beam rib 126, where the beam rib 126 is connected between the beam inner vertical plate 124 and the beam outer vertical plate 123, and the plurality of beam ribs 126 are arranged at intervals. The beam rib 126 can increase the strength of the beam 12. The cross beam rib plates 126 are also provided with through holes for weight reduction and also serve as ventilation holes for keeping the inside of the box structure dry. The top of the beam rib plate 126 is recessed downward to leave a gap with the beam upper cover plate 121, so that the local rigidity can be weakened, and a deformation allowance can be reserved.

On the basis of the technical proposal, the beam vertical plate connecting component 127 is adopted to connect the beam inner vertical plate 124 and the beam outer vertical plate 123. The beam riser connection assembly 127 includes: the beam vertical plate connecting plate and the bolts are arranged in the central pin holes, and the bolts penetrate through the bolt holes in the beam vertical plate connecting plate and the bolt holes of the beam outer vertical plate 123 from the central pin holes and then are connected with the nuts. The beam riser connection assembly 127 can also act as a stop for the kingpin to mitigate rigid impact with the kingpin.

Further, the cross beam 12 further includes: transverse traction stops 128, located within the center pin bore 1241, are secured to the cross beam inner riser 124 at both ends in the transverse direction. For limiting the lateral relative displacement between the kingpin and the cross beam.

Further, as shown in fig. 9, a riser notch 1142 is provided at the bottom end of the side member outer riser 114, so that the first additional chamber 116 and the second additional chamber 117 can be communicated with each other, and water in the air spring mounting portion 11b can be drained from the riser notch 1142 into the side member main body 11a and then drained from the drain hole in the bottom of the side member main body 11 a.

A series of mounting brackets 13 are provided at the ends of the side beams 11 to provide an interface for connection with the series of suspension units 3. The primary mounting seat 13 is used as an independent component to be assembled with the side beam 11, the same side beam can be adopted for the bogies with different wheelbases, the positions of the interfaces in the primary positioning seat are only adjusted, and compared with the design adjustment and the manufacture of the whole side beam, the primary positioning seat is simpler and higher in efficiency, and the side beam can be recycled and can be suitable for the bogies with various wheelbases, so that the production cost is reduced.

As shown in fig. 2,3, 15 and 19, one end of the primary mounting seat 13 has an upper clip arm 131 and a lower clip arm 132, a space for accommodating the end of the side beam 11 is formed between the upper clip arm 131 and the lower clip arm 132, and the upper clip arm 131 and the lower clip arm 132 are respectively wrapped on the upper surface and the lower surface of the end of the side beam 11 and fixedly connected with the end of the side beam, for example, by a weldable process.

The middle bottom of a tie mount 13 is provided with an interface for connecting with a tie suspension device, which is disposed below the tie mount 13. The load of the wheel set is transferred to the train mount 13 through the train suspension, and the train mount 13 receives the load. The position of the interface for connection to the primary suspension can be set and machined according to the wheelbase of the bogie. The side beams and different primary positioning seats can meet the requirements of the bogie with different axial distances.

The two ends of the side beam 11 are provided with a series of mounting seats 13, and a frame requires four series of mounting seats 13.

The present embodiment provides a specific implementation manner: the distance between the upper clamp arm 131 and the middle of the series of mounts is greater than the distance between the lower clamp arm 132 and the middle of the series of mounts. Corresponding to the upper clamp arm 131 being much higher than the middle of the series of mounts, while the lower clamp arm 132 is only slightly lower than the middle of the series of mounts.

The upper clamping arm 131, the lower clamping arm 132 and the middle part of the primary mounting seat are in smooth transition. The upper clamping arm 131, the lower clamping arm 132 and the middle part of the primary mounting seat are integrally formed, for example, can be formed by casting.

One embodiment is: the middle bottom surface of the primary mounting seat 13 is provided with two primary positioning holes 133 which are sequentially arranged along the length direction of the side beam and serve as interfaces for connecting with primary suspension devices of the bogie. A locating pin at the top of the hitch is inserted into a hitch locating hole 133 to define the position of the hitch.

The shape of the primary alignment holes 133 may be circular, oblong, or other, and may be specifically set according to alignment pins at the top of the primary suspension. In this embodiment, the first positioning hole 133 is a circular hole.

Further, the primary mounting base 13 is also provided with an interface for connecting to a primary vertical damper. The bottom end of the vertical shock absorber is connected with an axle box on the wheel set, and the top end of the vertical shock absorber is connected with a mounting seat 13 for buffering vertical vibration between the wheel set and the side beams.

Specifically, the end of the primary mount 13 remote from the side beam is provided with a damper attachment hole 134 for connection to a primary vertical damper. The damper connecting hole 134 penetrates the upper and lower surfaces of the first mounting base 13. A series of vertical dampers are fixed to the series of mounting seats 13 by bolts after passing through the damper connecting holes 134.

Furthermore, the primary mounting seat 13 may be further provided with an interface for connecting with a bogie cabin, where the bogie cabin is disposed at the bottom and the side of the bogie, so as to cover the bogie, and form diversion ports at the front end and the rear end of the bogie, respectively, so that air enters the bogie from the diversion ports and flows orderly, and flows out from another diversion port, thereby improving the heat dissipation effect of the bogie.

For the solution where the truck cabin is connected to the primary mounting seat 13, in particular a truck cabin connection hole 135 is provided at the end of the primary mounting seat 13 remote from the side beams as an interface for connection to the truck cabin. The four bogie cabin connecting holes 135 are arranged at the periphery of the shock absorber connecting holes 134 and are connected with the bogie cabin through bolts.

In the above-mentioned scheme, the side beam upper cover plate 111, the side beam lower cover plate 112, and the side beam outer vertical plate may be formed by a single plate, and the side beam inner vertical plate is formed by connecting a plurality of plates. Specifically, as shown in fig. 4, the side sill inner panel includes: middle inner riser 1131, end inner riser 1132, and gearbox hanger bracket assembly 1133.

Wherein, middle inner vertical plate 1131 is located in the middle of the side beam, is vertically arranged, the top of the middle inner vertical plate is connected with side beam upper cover plate 111, and the bottom of the middle inner vertical plate is connected with side beam lower cover plate 112.

The end inner vertical plate 1132 is positioned at the end of the side beam, is arranged in a vertical line, has the top connected with the side beam upper cover plate 111 and the bottom connected with the side beam lower cover plate 112.

The gearbox cradle assembly 1133 is used for connecting a gearbox, and specifically includes: a gear box hanger plate 11331 and a gear box hanger 11332, wherein the gear box hanger plate 11331 is located between the middle inner plate 1131 and the end inner plate 1132, and is in butt joint with the middle inner plate 1131 and the end inner plate 1132. The gear box hanger 11332 is located on the surface of the gear box hanger plate 11331 facing away from the side rail outer plate.

The gear box hanger plate 11331 and the gear box hanger 11332 may be integrally formed, and the gear box hanger plate 11331 is welded between the middle inner vertical plate 1131 and the end inner vertical plate 1132 during the manufacturing process of the side beam, so that the gear box hanger 11332 is directly assembled together during the manufacturing process of the side beam, and the gear box hanger 11332 becomes a part of the side beam.

The assembly is completed in the manufacturing process of the side beams, the problems that the assembly efficiency is low, the working strength is high, the strength of the connecting position is low, fatigue damage is easy to occur and the like caused by the fact that the traditional gearbox hanging seat is fixed to the framework through bolts are solved, the assembly efficiency of the bogie can be improved, the workload of operators is reduced, the number of parts is reduced, and the maintenance difficulty is also reduced.

In addition, the technical scheme adopts the gearbox hanging seat as a part of the side beam, the structure is more compact than the traditional structure, the structure is more suitable for the bogie with the built-in axle box, the hanging seat of the gearbox is smaller in mass and easier to assemble, and the weight of the bogie is reduced.

The gear housing hanger 11332 and the gear housing hanger riser 11331 are integrally formed, for example, by casting, additive manufacturing, or the like. Compared with the scheme that the gearbox hanging seat 11332 and the framework are connected together through bolts in the traditional scheme, the integrated formation of the gearbox hanging seat 11332 and the gearbox hanging seat vertical plate 11331 can overcome the problems that the strength of the connecting position of the bolt connection is low, fatigue damage is easy to occur and the like.

The gear box hanging seat vertical plate 11331 is in butt joint with the middle inner vertical plate 1131 and the end inner vertical plate 1132, can be connected with the middle inner vertical plate 1131 and the end inner vertical plate 1132 in a welding mode, has higher strength, and can improve the strength of the side beams and even the whole framework. The gearbox hanger riser 11331 is flush with the surfaces of the middle inner riser 1131 and the end inner riser 1132, so that the side beam 11 has better integrity and visual effect, and the inner side surface of the side beam has no protruding structure to reduce the stress concentration place, thereby further improving the strength of the side beam.

A specific scheme is as follows: the gearbox cradle 11332 includes: the first gear box boom 11332a and the second gear box boom 11332b, the first gear box boom 11332a and the second gear box boom 11332b are arranged in sequence along the length direction of the side beam 11, and the first gear box boom 11332a and the second gear box boom 11332b extend in the transverse direction. A space is left between the first gear box boom 11332a and the second gear box boom 11332b for connection with a gear box connector, which is inserted into the space and connected with the first gear box boom 11332a and the second gear box boom 11332b, respectively, by bolts.

On the basis of the technical scheme, the side beam inner vertical plate further comprises: the motor suspension base assembly 1134 is used for connecting with a driving motor. The motor cradle assembly 1134 includes: a motor hanger riser 11341 and a motor hanger 11342.

Wherein, the motor hanger riser 11341 is located at the end of the middle inner riser 1131 far away from the gear box hanger assembly 1133, and the motor hanger riser 11341 is in butt joint with the middle inner riser 1131. The motor hanger 11342 is located on the surface of the motor hanger riser 11341 facing away from the side rail outer riser. One end of the motor hanger standing plate 11341 is butted with the middle inner standing plate 1131, and the other end extends to the end of the side member 11.

The motor hanging seat vertical plate 11341 and the motor hanging seat 11342 can be of an integrated structure, in the manufacturing process of the side beam, the motor hanging seat vertical plate 11341 is welded on one side of the middle inner vertical plate 1131, and the motor hanging seat 11342 is directly assembled together in the manufacturing process of the side beam, so that the motor hanging seat 11342 also becomes a part of the side beam to be assembled in the manufacturing process of the side beam, and the assembly efficiency of the bogie is further improved.

Specifically, the motor hanger plate 11341 and the motor hanger 11342 are integrally formed, for example, by casting, additive manufacturing, or the like. Compared with the scheme that the motor hanging seat 11342 and the framework are connected together through bolts in the traditional scheme, the motor hanging seat vertical plate 11341 and the motor hanging seat 11342 are integrally formed, so that the problems that the strength of a connecting position of the bolt connection is low, fatigue damage is easy to occur and the like can be solved.

The gear box hanger stand vertical plate 11341 is in butt joint with the middle inner vertical plate 1131, can be connected in a welding mode, and is beneficial to improving the strength of the side beams and even the whole framework. The gear box hanger standing plate 11341 is flush with the surface of the middle inner standing plate 1131, so that the integrity of the side beam 11 is further improved, and the inner side surface of the side beam has no protruding structure, so that the stress concentration place can be reduced, and the strength of the side beam is further improved.

A specific scheme is as follows: the motor hanger 11342 includes: the motor suspension arm extends transversely, and the motor suspension arm is provided with an interface for being connected with the motor connecting piece. The motor connecting piece is connected with the motor suspension arm through bolts.

As shown in fig. 20 to 27, the primary suspension device provided in this embodiment includes: a suspension base 31 and a suspension pin 32. Wherein, the suspension base 31 is located below, and the bottom of suspension base 31 is used for connecting with the axle box of wheel pair. The suspension pins 32 are located above, and the tips of the suspension pins 32 are used to connect with the frame.

Taking the perspective of fig. 24 as an example, the suspension base 31 is provided with a suspension cavity 311 with an open top end, and a first magnetic member 312 is disposed on a side wall of the suspension cavity 311. The first magnetic member 312 may be a permanent magnet or an electromagnet.

The suspension pin 32 is accessible from the opening into the suspension bore 311. The suspension pin 32 has magnetism, and its magnetic pole is the same as that of the first magnetic member 312. If the first magnetic element 312 is N-pole, the suspension pin 32 is also N-pole; if the first magnetic element 312 is S-pole, the suspension pin 32 is also S-pole. A repulsive force is generated between the suspension pin 32 and the first magnetic member 312.

The suspension pin 32 itself may be a permanent magnet or an electromagnet. Or the suspension pin 32 itself has no magnetism, and a second magnetic member is provided inside or on the surface of the suspension pin 32, the magnetic pole of the second magnetic member being identical to that of the first magnetic member.

When the frame is subjected to a large load, downward pressure is applied to the suspension pins 32, so that the suspension pins 32 move downward against the repulsive force of the magnetic poles, and more parts enter the suspension cavities 311. When the frame is subjected to a small load, the magnetic pole repulsive force pushes the suspension pin 32 upward. The load is buffered by magnetic repulsive force. Similarly, when the running road surface of the railway vehicle is uneven, the vibration of the wheel track is transmitted to the primary suspension device through the wheel pair, and the vertical movement amount of the suspension pin 32 is smaller than the vertical movement amount of the suspension base 31 through the magnetic pole repulsive force, so that the effect of buffering the vibration of the wheel track is achieved, the vibration of a carriage is reduced, and the riding comfort is improved. Moreover, the suspension pin 32 and the suspension base 31 are not contacted, abnormal sound is not generated, and the mechanical contact probability between the suspension pin 32 and the suspension base is small, so that the abrasion is reduced, and the service life is prolonged.

The primary suspension device is applied to the bogie of the railway vehicle, the suspension pin is connected with the framework, the suspension base is connected with the wheel set box, the primary suspension device can buffer vibration between the framework and the wheel set, the suspension pin is not in direct contact with the suspension base, vibration abnormal sound cannot be generated, mechanical abrasion is reduced, and the service life of each part is prolonged.

The first magnetic members 312 are arranged along the circumferential direction of the suspension base 31. The first magnetic member 312 may be a closed loop or an unclosed loop. Or the number of the first magnetic members 312 is plural and is uniformly arranged in the circumferential direction of the suspension base 31. In the drawings of the present embodiment, four first magnetic members 312 are uniformly arranged along the circumferential direction of the suspension base 31 to uniformly maintain the magnetic field between the suspension pins, so that the suspension pins 32 and the suspension base 31 move vertically relative to each other, and the horizontal relative movement is reduced.

When the suspension pin 32 is subjected to a large vehicle body load or there is an instantaneous large vibration amplitude of the wheel rail, the suspension pin 32 is likely to contact the suspension base 31. The lateral stop blocks 33 are arranged on the peripheral surface of the suspension pin 32, the lateral stop blocks 33 are in one-to-one correspondence with the first magnetic pieces 312, and the lateral stop blocks 33 are in contact with the first magnetic pieces 312, so that the suspension pin 32 can be prevented from being in direct contact with the first magnetic pieces 312, impact abrasion to the suspension pin 32 and the first magnetic pieces 312 is reduced, and the service life is further prolonged.

In the present embodiment, four side stopper pieces 33 are provided on the outer peripheral surface of the suspension pin 32, and are uniformly arranged. The side stop 33 is positioned in alignment with the first magnetic member 312.

Further, the bottom stopper 34 is also disposed between the bottom end of the suspension pin 32 and the suspension base 31, specifically, between the bottom end of the suspension pin 32 and the bottom wall of the suspension chamber 311, so that the bottom end of the suspension pin 32 can be prevented from directly contacting the suspension base 31.

The side stop block 33 can be made of felt, silica gel, rubber and other materials, and has certain buffering capacity.

As for the shapes of the suspension base 31 and the suspension pin 32, the present embodiment provides an embodiment: the cross-sectional area of the suspension chamber 311 decreases gradually in a direction inward from the opening, where the cross-sectional area is the largest. Accordingly, the cross-sectional area of the suspension pin 32 gradually decreases along the direction of entering the suspension chamber 311, and the suspension pin 32 takes a shape of a large upper part and a small lower part, facilitating entry and exit into and from the suspension chamber 311.

A scheme is as follows: the cross-sectional area of the suspension pin 32 is circular, and further, the suspension pin 32 has a truncated cone shape. The side wall of the suspension chamber 311 is a conical surface.

The end of the suspension pin 32 facing the inside of the suspension chamber 311, that is, the bottom edge of the suspension pin 32 is provided with a ring table 322, and the bottom stopper 34 is sleeved on the bottom of the suspension pin 32 and abuts against the ring table 322. This can reduce the diameter of the bottom stopper 34 without interfering with the relative movement between the suspension pin 32 and the suspension base 31.

On the basis of the above technical solution, the bottom wall of the suspension cavity 311 is provided with a series of limiting posts 313 extending towards the opening, and the limiting posts 313 may be cylindrical. Correspondingly, the end of the suspension pin 32 facing the inside of the suspension chamber 311 (the bottom end of the suspension pin 32) is provided with a series of limiting holes 321 for receiving the series of limiting bosses 313.

The first limiting boss 313 is inserted into the first limiting hole 321, and the first limiting boss 313 is not pulled out of the first limiting hole 321 during the relative movement of the suspension base 31 and the suspension pin 32 in the vertical direction, and the suspension base 31 and the suspension pin 32 are limited to move only in the vertical direction.

For the matching mode of the suspension base 31 and the wheel set, a series of axle box positioning pins 314 can be arranged at the bottom end of the suspension base 31 and can be inserted into positioning holes at the top of the axle box, so that vertical positioning is realized, horizontal limiting is realized, and relative horizontal movement between a series of suspension devices and the axle box is avoided.

For the matching mode of the suspension pin 32 and the framework, a framework positioning pin 323 can be arranged at the top end of the suspension pin 32 and can be inserted into a positioning hole of the framework to realize vertical positioning and horizontal limiting, so that relative horizontal movement between a framework and a framework is avoided.

On the basis of the technical scheme, the bogie further comprises a bogie cabin, and particularly comprises a bottom cabin device which is arranged at the bottom of the bogie, so that the bogie can be protected, stones and solids on the rail surface are prevented from impacting the bogie, and dirt such as mud can be prevented from being attached to the bogie.

As shown in fig. 28 to 36, the bogie hearth device provided by the present embodiment includes: the bilge skeleton 61 and a bilge skin 62 connected to the bilge skeleton 61. The cabin skeleton 61 is connected to the frame of the bogie, and the cabin skin 62 is connected to the bottom of the cabin skeleton 61.

Wherein, the underframe skeleton includes: a bottom bay stringer 611, a bottom bay short beam 612 and a bottom bay long beam 613. The two side sill stringers 611 are arranged in parallel and spaced apart relation. The long sill cross 613 is connected to the middle of the two long sill stringers 611, with the ends of the long sill cross 613 extending beyond the longitudinal sill stringers 611. The short bottom bay transom 612 is located outside the long bottom bay transom 613 and is connected between the two bottom bay stringers 611.

The bottom deck skin includes: a skin main body 621 and a skin side 622. The skin main body 621 extends longitudinally and covers the cabin longitudinal beams 611 and the cabin short cross beams 612. The skin side portions 622 are located on both sides of the longitudinal middle portion of the skin main body 621, covering the end portions of the long cross beam 613 of the cabin.

The size of the bilge skin is greater than the footprint of the bilge skeleton. The bottom cabin skeleton plays a role in supporting and connecting, and the bottom cabin skin plays a role in blocking and protecting.

The bottom cabin framework plays a role in supporting and connecting, the bottom cabin skin plays a role in blocking and protecting, and is used for preventing stones and solids on the rail surface from colliding with all parts of the bogie, so that the bogie is protected, the service lives of the parts are prolonged, and the driving safety is improved. In addition, the two sides of the longitudinal middle part of the skin main body are also provided with skin side parts, and the skin side parts are protruded out of the skin main body to enable the skin side parts to be closer to the skirtboards on two sides of the car body of the railway car, so that gaps between the skirtboards and the bottom cabin skin are reduced, and the messy flow of air in the area of the skirtboards is reduced, thereby reducing noise.

On the basis of the above technical solution, this embodiment provides a specific implementation manner of the bottom cabin device:

The number of the long cross beams 613 of the bottom cabin is two, and the long cross beams are arranged side by side at intervals. Both ends of the long bottom deck beam 613 pass through the middle of the corresponding longitudinal bottom deck beam 611 and pass out of the longitudinal bottom deck beam 611. Specifically, the two ends of the long cross beam 613 correspondingly penetrate the longitudinal beam 611 of the bottom cabin to be equal in length.

The long cross beam 613 of the bottom cabin can be a groove-shaped beam or a square-shaped beam, and the longitudinal beam 611 of the bottom cabin can be a groove-shaped beam. The opening directions of the two bottom cabin longitudinal beams 611 are opposite, and the bottom cabin long cross beam 613 passes through the bottom of the bottom cabin longitudinal beam 611 and is riveted and fixed with the side wall of the bottom cabin longitudinal beam 611.

The number of short beams 612 is two, and they are respectively located on the outer sides of the two long beams 613. The short beam 612 of the bottom cabin can adopt a groove-shaped beam or a square-shaped beam, and two ends of the short beam 612 of the bottom cabin are respectively inserted into grooves of the longitudinal beam 611 of the bottom cabin and are riveted and fixed with the side walls of the grooves of the longitudinal beam 611 of the bottom cabin through rivets.

Further, a bed end beam 614 is also employed and attached to the ends of the two bed stringers 611. The bottom cabin end beam 614 may be a groove-shaped beam or a square-shaped beam, and two ends of the bottom cabin end beam 614 are respectively inserted into the grooves of the bottom cabin longitudinal beam 611 and are riveted and fixed with the groove side walls of the bottom cabin longitudinal beam 611 through rivets. The end beams 614 are used to support the ends of the cabin skin 62.

The long bottom cross beam 613, the short bottom cross beam 612 and the end bottom cross beam 614 are arranged at intervals, and the short bottom cross beam 612 is located between the end bottom cross beam 614 and the long bottom cross beam 613.

The skin main body 621 covers the bottoms of the bottom cabin longitudinal beam 611, the bottom cabin long cross beam 613, the bottom cabin short cross beam 612 and the bottom cabin end beam 614, the length of the skin main body 621 is longer than the length of the bottom cabin longitudinal beam 611, and the width of the skin main body 621 is longer than the distance between the two bottom cabin longitudinal beams 611.

The bottom cabin skin 62 is made of aluminum materials, has small mass, is beneficial to reducing the weight of the vehicle body and realizes the lightweight design of the vehicle. And the aluminum skin is firm and has high reliability.

On the basis of the technical scheme, the embodiment provides a bogie cabin which comprises the bottom cabin device 601, the side cabin device 602 and the diversion device 603, and the bogie is covered.

Wherein the side deck units 602 are located on both sides of the bogie and are connected to the bottom of the body of the railway vehicle for protecting the bogie from the side. The side trunk device 602 can keep the shape of the car body skirt board, and the car body skirt board is not required to be arranged on the side surface of the bogie, and the side trunk device 602 can be directly used as the car body skirt board.

The deflector 603 is disposed at both ends of the bogie and is connected to the bottom of the body of the railway vehicle. A diversion channel is formed between the diversion device 603 and the end of the bottom cabin device 601, so that air enters the bogie from the diversion channel at one end of the bogie and flows out from the other end of the bogie, and orderly flow is formed in the bogie, thereby being beneficial to accelerating the heat dissipation of the bogie.

The deflector 603 is recessed inwardly towards the side of the bottom compartment means 601 in an arcuate notch. Correspondingly, the middle part of the end beam 614 of the bottom cabin arches outwards, and the edge of the longitudinal end part of the skin main body 621 is arc-shaped and is consistent with the shape of the arc-shaped notch of the flow guiding device 603, so that the caliber of the flow guiding channel is kept uniform, the flow guiding is softer, the turbulence formed at the flow guiding position can be effectively reduced, and the wind noise at the position is reduced.

Further, the bottom cabin inclined beam 615 is connected between the end part of the bottom cabin long beam 613 and the bottom cabin longitudinal beam 611, and forms a triangular structure with the bottom cabin long beam 613 and the bottom cabin longitudinal beam 611, which is beneficial to improving the strength of the two sides of the middle part of the bottom cabin skeleton 61. The bottom cabin inclined beam 615 can be a square beam or a groove beam, and is respectively riveted with the bottom cabin longitudinal beam 611 and the bottom cabin long cross beam 613 through rivets.

The edges of the skin sides 622 are outwardly convex arcuate. The bilge skin 62 further includes: the arc-shaped skin side stopper 623 is vertically connected to the edge of the skin side 622. The outwardly convex arcuate edges of the skin sides 622 reduce the clearance with the body side skirt or side trunk assembly 602, thereby reducing windage.

The bottom cabin longitudinal beam 611, the bottom cabin end cross beam 612, the bottom cabin long cross beam 613, the bottom cabin end beam 614 and the bottom cabin oblique beam 615 can all adopt extruded aluminum profile structures, and weight reducing holes can be processed to realize weight reduction. The bottom cabin skin 62 is connected with the bottom cabin skeleton 61 through a press riveting process, and the connection mode is simple and reliable, so that the weight reduction can be further realized.

For the connection between the bottom bay device 601 and the bogie, the present embodiment provides an implementation: the boom assembly 63 is used to connect the bottom bay device 601 to the bogie. Specifically, the boom assembly 63 is attached at its bottom end to the end of the long transom 613 and at its top end to the frame of the truck.

Specifically, the boom assembly 63 includes a boom body 631, the bottom end of the boom body 631 is secured within the long bottom bay beam 613 and a first seal 632 is disposed between the long bottom bay beam 613. The top end of the boom body 631 is attached to the frame, specifically, passes upward through the side sill 11 in the frame and is secured to the boom attachment nut 633. The boom connecting nut 633 is a metal embedded self-locking nut, so that the looseness prevention can be realized. A second sealing gasket 634 is arranged between the top end of the suspender body 631 and the framework, a ring groove is arranged on the circumference of the second sealing gasket 634, and the bottom plate of the side beam is embedded into the ring groove. The boom assembly 63 can significantly increase the hanging stiffness of the pod 601 and the gasket can slow down the relative movement and vibration between the pod and the frame.

Further, a wire rope damper 64 is provided between the bottom deck device 601 and the bogie for damping vibration therebetween. Specifically, the two ends of the end beams 614 pass outward through the end beams 611, and the wire rope dampers 64 are disposed at the ends of the end beams, the tops of which are used to connect with axle boxes of the bogie. Specifically, four wire rope dampers 64 are respectively arranged at the end parts of two end beams 614 of the bottom cabin and are connected between the four axle boxes and the end beams 614 of the bottom cabin, so that vibration impact on the axle boxes and relative movement between the axle boxes and the bottom cabin device are reduced.

Specifically, the floor of the wire rope vibration damper 64 is bolted to the hold end beam 614. The top plate of the wire rope damper 64 is connected to the axle box 23 and the vertical damper 71 in sequence by bolts.

On the basis of the technical scheme, an overhaul area is defined by the area surrounded by the long bottom cabin cross beams 613 and the short bottom cabin cross beams 612, and the skin main body is provided with overhaul holes corresponding to the overhaul area. The access door 651 is located in the access area, and one side of the access door 651 is hinged to the floor cabin rail 611 by a hinge 652 such that the access door 651 is pivoted relative to the floor cabin rail 611 by the hinge 652, opening downward or closing upward. The opposite side of the access door 651 is connected to another side sill 611 by a locking member 653 for locking the access door when closed. Locking member 653 can be a tongue lock construction.

Further, an anti-drop safety lock is further provided in the middle of the short beam 612 of the bottom compartment, for further locking the access door when the access door is closed, preventing the access door from falling accidentally.

Further, brake disc escape holes 625 are provided at four corners of the skin main body 621 for escape of the brake discs on the truck axles. Specifically, a brake disc avoiding hole 625 is provided on one side of the region between the floor end cross member 612 and the floor end beam 614, corresponding to the brake disc position.

Further, brake pad replacement windows 624 are provided at four corners of the skin main body 621, through which brake pads on the brake caliper can be disassembled and assembled, thereby realizing maintenance and replacement of the brake pads.

Two access doors 651 are provided in the bottom compartment apparatus 601, and the bogie can be overhauled and maintained from the bottom by opening the access doors.

The present embodiment also provides a railway vehicle including: a bogie as provided in any one of the above. The rail vehicle provided by the embodiment has the same technical effects as the bogie.

Claims

1. A bogie, characterized by comprising:

Side beam; the side beam is a box-type structure, and its internal space serves as an additional air chamber;

An air spring is arranged on the side beam; the inner space of the air spring is communicated with the additional air chamber;

An air water filtration device; the air water filtration device comprises: a water filtration main circuit, a first water filtration branch circuit, a second water filtration branch circuit and a transmission mechanism; one end of the water filtration main circuit is connected to the additional air chamber, and the other end is respectively connected to the first water filtration branch circuit and the second water filtration branch circuit; the first water filtration branch circuit is provided with a driving wind wheel, which is connected to the driving end in the transmission mechanism; the second water filtration branch circuit is provided with a compression wind wheel, which is connected to the driven end in the transmission mechanism; the second water filtration branch circuit is connected to the additional air chamber via an air water filter.

2. The bogie according to claim 1 is characterized in that the transmission mechanism comprises: a driving gear and a driven gear that mesh with each other, the driving gear is connected to the driving wind wheel and rotates synchronously, and the driven gear is connected to the compression wind wheel and rotates synchronously; the number of teeth on the driving gear is greater than the number of teeth on the driven gear.

3. The bogie according to claim 2 is characterized in that it also includes: a control component; the control component is arranged in the first water filtration branch and is used to control the start-up of the first water filtration branch.

4. The bogie according to claim 3 is characterized in that it also includes: a humidity sensor, which is arranged in the additional air chamber; and the humidity sensor is electrically connected to the control component.

5. The bogie according to claim 1, characterized in that the second water filtering branch is provided with a one-way gas valve.

6. The bogie according to any one of claims 1 to 5, characterized in that the side beam comprises: a side beam body and an empty spring mounting portion, the empty spring mounting portion is located outside the side beam body; the empty spring mounting portion is a box-shaped structure having a first additional chamber inside, and the side beam body is a box-shaped structure having a second additional chamber inside; the first additional chamber is connected to the second additional chamber;

The air spring mounting portion is provided with an air spring mounting sleeve for inserting the air spring guide column at the bottom of the air spring; the internal space of the air spring mounting sleeve is used to communicate with the gas chamber inside the air spring, and the internal space of the air spring mounting sleeve is also connected with the first additional chamber.

7. The bogie according to claim 6 is characterized in that an elastic member is provided in the empty spring mounting sleeve; the top end of the elastic member is used to contact with the empty spring guide column.

8. The bogie according to any one of claims 1 to 5, characterized in that the side beam body comprises: a side beam lower cover plate, a side beam upper cover plate, a side beam inner vertical plate and a side beam outer vertical plate, the side beam lower cover plate is connected between the bottom ends of the side beam inner vertical plate and the side beam outer vertical plate, and the side beam upper cover plate is connected between the top ends of the side beam inner vertical plate and the side beam outer vertical plate.

9. The bogie according to claim 8, characterized in that the empty spring mounting portion comprises: an empty spring mounting vertical plate; two ends of the empty spring mounting vertical plate are bent relative to the middle of the empty spring mounting vertical plate toward the side beam outer vertical plate and connected to the side beam outer vertical plate;

The upper cover plate of the side beam extends outward and is connected to the top end of the empty spring mounting plate, and the lower cover plate of the side beam extends outward and is connected to the bottom end of the empty spring mounting plate; the outer plate of the side beam is provided with a plate through hole that connects the first additional chamber and the second additional chamber.

10. A rail vehicle, characterized by comprising: a bogie according to any one of claims 1 to 9.