CN111483489B

CN111483489B - Steering system and rail transit system with same

Info

Publication number: CN111483489B
Application number: CN201910076052.XA
Authority: CN
Inventors: 杨怡; 谭志成
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2019-01-26
Filing date: 2019-01-26
Publication date: 2022-05-13
Anticipated expiration: 2039-01-26
Also published as: CN111483489A

Abstract

The invention provides a steering system and a rail transit system with the same, wherein the steering system comprises a rail beam, and a guide groove is arranged on the beam surface of the rail beam; a bogie, the bogie comprising: a body; the walking wheels are rotatably arranged on the body and supported on the track beam; the guide wheel is rotatably arranged on the body and is suitable for running in the guide groove. The steering system provided by the invention has a simple structure, is beneficial to reducing the cost and the unsprung mass, improves the running stability of a train, and has high guiding flexibility.

Description

Steering system and rail transit system with same

Technical Field

The invention belongs to the field of rail transit, and particularly relates to a steering system and a rail transit system with the same.

Background

In a vehicle of a straddle type rail transit system in the related art, guide wheels on two sides of a bogie are in contact with the side surface of a rail beam to provide a guide moment for the vehicle, so that the vehicle moves forwards along the rail beam. The bogie structure of the prior art is complex, the guiding flexibility is not enough, the unsprung mass is not favorably reduced, and the running stability is not favorably provided.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a steering system. The steering system is simple in structure, beneficial to reducing cost and unsprung mass, capable of improving stability of train operation and high in guiding flexibility.

The invention also provides a rail transit system with the steering system.

To achieve the above object, an embodiment according to a first aspect of the present invention proposes a steering system including: the guide rail comprises a rail beam, wherein a guide groove is formed in the beam surface of the rail beam; a bogie, the bogie comprising: a body; the walking wheels are rotatably arranged on the body and supported on the track beam; the guide wheel is rotatably arranged on the body and is suitable for running in the guide groove.

The steering system provided by the embodiment of the invention has a simple structure, is beneficial to reducing unsprung mass and improving the running stability of a train, and has high guiding flexibility.

In some examples of the invention, the guide wheel is plural. Therefore, the guide wheels are multiple, so that the guide wheels are more stable and flexible to guide.

In some examples of the invention, the guide wheels are two, one guide wheel being disposed on one side of the bogie and the other guide wheel being disposed on the other side of the bogie. Therefore, the guide wheels are symmetrically arranged, so that the guide is more stable, the cost can be saved, and the unsprung mass is reduced.

In some examples of the invention, the running wheels are plural. Therefore, the plurality of the walking wheels have larger beam surface contact surface with the track beam, and the walking is more stable.

In some examples of the invention, the number of running wheels is four, two running wheels being provided on one side of the bogie and the other two running wheels being provided on the other side of the bogie.

In some examples of the invention, the two running wheels are located on the same side of the bogie, and the two running wheels are spaced apart and located on two sides or one side of the guide groove. Therefore, the running wheels do not interfere with each other, and the running stability of the running wheels can be improved.

In some examples of the invention, the body further comprises: the guide connecting rod is connected with the guide wheel; the first steering knuckle is respectively connected with the guide connecting rod and the walking wheel; a second steering knuckle pivotably connected with the first steering knuckle. Therefore, the guide connecting rod, the first steering knuckle and the second steering knuckle are connected stably, the structure is simple, the steering stability is improved, and the unsprung mass is reduced.

In some examples of the invention, the guide link is pivotally connected to the guide wheel.

In some examples of the invention, the guide link is pivotally connected to the first steering knuckle. Therefore, the connection between the guide connecting rod and the first steering knuckle can be pivoted, the guide connecting rod can rotate relative to the first steering knuckle, the height change caused by different loading conditions of the railway vehicle can be self-adapted, and the guide wheel is always positioned in the guide groove.

In some examples of the invention, the body further comprises: a bridge main body; the motor is arranged on the axle main body and used for providing power for the bogie; and one end of the transmission shaft is connected with the motor, and the other end of the transmission shaft is connected with the walking wheels.

In some examples of the invention, the body further comprises a towing drawbar connected with the rail vehicle for towing the rail vehicle.

In some examples of the invention, the body further comprises a shock absorbing device for reducing shock in a vertical direction of the bogie. Therefore, the damping device can reduce the vertical vibration of the bogie and improve the comfort of the railway vehicle.

Embodiments according to the second aspect of the invention propose a rail transit system comprising a steering system according to embodiments of the first aspect of the invention.

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

Drawings

Fig. 1 is a schematic structural diagram of a steering system provided in an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a steering system provided in an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a knuckle of a steering system provided in an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a bogie of the steering system according to the embodiment of the invention when the bogie is steered;

fig. 5 is a schematic structural diagram of a bogie portion of a steering system according to an embodiment of the present invention.

Reference numerals:

a steering system 10;

a track beam 20;

the guide groove 21, the first guide groove 211, the second guide groove 212; a beam face 22;

a bogie 30;

a body 31;

a guide link 311, a first connection portion 3111, a second connection portion 3112;

the first knuckle 312, the first projection 3121, the second projection 3122, the connecting portion 3123;

second knuckle 313, third boss 3131, fourth boss 3132;

a shock-absorbing device 314; a secondary spring 315; a first connecting shaft 316; a second coupling shaft 317; a third connecting shaft 318; a bridge body 319; a motor 3191; a drive shaft 3192; a traction link 3193;

running wheels 32;

first running wheels 321, second running wheels 322, third running wheels 323, fourth running wheels 324;

a guide wheel 33;

a first guide wheel 331 and a second guide wheel 332.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "vertical", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate an orientation or positional relationship based on the drawingsThe orientations and positional relationships shown are for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Wherein,xthe axial direction is a transverse direction,xthe positive direction of the axis is the right direction,xthe axial negative direction is left;ythe axial direction is the longitudinal direction,ythe positive direction of the axis is the front direction,ythe negative axis direction is back;zthe axial direction is vertical or vertical,zthe positive direction of the axis is upward,zthe axial negative direction is lower;xOythe plane is the horizontal plane, and the horizontal plane,yOzthe plane is the vertical plane in the longitudinal direction,xOzi.e. the transverse vertical plane. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the connection can be mechanical connection or electrical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

A steering system 10 according to an embodiment of the present invention is described in detail below with reference to fig. 1 to 5.

As shown in fig. 1-2, a steering system 10 according to an embodiment of the present invention includes a track beam 20 and a bogie 30.

In some embodiments, as shown in fig. 1-2, the rail beam 20 is provided with a guide groove 21 on the beam surface 22. Wherein the track beam 20 comprises a curved beam and a straight beam. The bogie 30 includes a body 31, running wheels 32, and guide wheels 33. Running wheels 32 are rotatably provided on the body 31 and supported on the track beam 20. Running wheels 32 can run on the beam surface 22 of the rail beam 20. The guide wheel 33 is rotatably provided on the body 31. The guide wheels 33 are adapted to run in the guide grooves 21.

According to the steering system 10 of the embodiment of the invention, the guide groove 21 is arranged on the beam surface 22 of the track beam 20, the guide wheel 33 runs in the guide groove 21, and the guide groove 21 fixes the running route of the guide wheel 33, so that the track vehicle is guided. Therefore, the steering system 10 is simple in structure, beneficial to reducing unsprung mass and improving stability of train operation, and high in guiding flexibility.

In some embodiments, as shown in fig. 1-2, the guide wheel 33 is plural. Thus, the guide wheels 33 provide guidance for the running of the rail vehicle, so that the rail vehicle is more stable in the running and steering processes.

In some embodiments, as shown in fig. 1-2, there are two guide wheels 33, one guide wheel 33 disposed on one side of the bogie 30 and the other guide wheel 33 disposed on the other side of the bogie 30. In some embodiments, there are two guide wheels 33, a first guide wheel 331 is disposed on the left side of the bogie 30, and a second guide wheel 332 is disposed on the right side of the bogie 30. Therefore, the number of the guide wheels is small, the structure is simple, the unsprung mass can be reduced, and the flexibility of guide of the guide wheels is improved. In other embodiments, the guide wheels 33 may be three or four to guide the rail vehicle.

In some embodiments, as shown in fig. 1-2, there are a plurality of running wheels 32, with at least one running wheel 32 disposed on one side of the bogie 30. Therefore, the plurality of running wheels 32 run on the beam surface 22 of the track beam 20, the contact area with the track beam 20 is larger, and the track vehicle is more stable in the running process.

In some embodiments, as shown in fig. 1-2, four running wheels 32 are provided, two running wheels 32 being provided on one side of the bogie 30 and two other running wheels 32 being provided on the other side of the bogie 30. In some embodiments, as shown in fig. 1-2, the running wheels 32 are four, the first running wheel 321 and the second running wheel 322 are arranged side by side on the left side of the bogie 30, and the third running wheel 323 and the fourth running wheel 324 are arranged side by side on the right side of the bogie 30. It should be noted that the left side of the bogie 30 is the negative direction of the X-axis, and the right side of the bogie 30 is the positive direction of the X-axis. Therefore, the four running wheels 32 are symmetrically and uniformly distributed on the left side and the right side of the bogie 30, and the stability of the railway vehicle in the running process can be improved.

In other embodiments, the first and second running

wheels

321, 322 may be spaced apart to the left of the bogie 30, and the third and fourth running

wheels

323, 324 may be spaced apart to the right of the bogie 30.

In some embodiments, as shown in fig. 1-2, two running wheels 32 on the same side of the bogie 30 are spaced apart and located on either side or one side of the guide channel 21. In some embodiments, as shown in fig. 1-2, the first and second running

wheels

321, 322 are spaced apart on the left side of the bogie 30, and the third and fourth running

wheels

323, 324 are spaced apart on the right side of the bogie 30. The first running wheels 321 are disposed on the left side of the first guide groove 211, the second running wheels 322 are disposed on the right side of the first guide groove 211, the third running wheels 323 are disposed on the left side of the second guide groove 212, and the fourth running wheels 323 are disposed on the right side of the second guide groove 212. This prevents the guide grooves 21 from interfering with the running wheels 32, and prevents the running wheels 32 from being unstable.

In other embodiments, the first and second running

wheels

321 and 322 are disposed on the left or right side of the first guide groove 211, and the third and fourth running

wheels

323 and 324 are disposed on the left or right side of the second guide groove 212. The first running wheel 321 and the second running wheel 322 have a certain gap therebetween, and the third running wheel 323 and the fourth running wheel 324 have a certain gap therebetween, so that the change of the tire profile caused by different loads of the rail vehicle can be accommodated.

In some embodiments, as shown in fig. 1-5, body 31 further includes a guide link 311, a first knuckle 312, and a second knuckle 313. The guide link 311 is connected to the guide wheel 33. The first steering knuckle 312 is connected to the guide link 311 and the running wheels 32, respectively. The second steering knuckle 313 is pivotably connected with the first steering knuckle 312. In some embodiments, as shown in fig. 1-5, body 31 further includes a guide link 311, a first knuckle 312, and a second knuckle 313. The guide link 311 is connected to the guide wheel 33 via a first connecting shaft 316. The first steering knuckle 312 is connected to the guide link 311 via the second connecting shaft 317, and the first steering knuckle 312 is connected to the running wheels 32. The second knuckle 313 is pivotably connected to the first knuckle 312 by a third connecting shaft 318. Therefore, the guide connecting rod 311, the first steering knuckle 312 and the second steering knuckle 313 are connected stably, the structure is simple, the steering stability is improved, and the unsprung mass is reduced.

In some embodiments, as shown in fig. 5, the first knuckle 312 has a first protruding portion 3121, a second protruding portion 3122, and a connecting portion 3123. Second knuckle 313 has third and fourth protrusions 3131, 3132. The guide link 311 has a first connection portion 3111 and a second connection portion 3112. Wherein the first protrusion 3121 and the third protrusion 3131 are connected by a third connecting shaft 318, the second protrusion 3122 and the fourth protrusion 3132 are connected by another third connecting shaft 318, and the connecting portion 3123 is connected with the running wheels 32.

In some embodiments, as shown in fig. 5, the first steering knuckle 312 may further have a first link 3124, and the first link 3124 is connected with the first connection portion 3111 of the guide link 311 through the second link shaft 317. The second connection portion 3112 of the guide link 311 is connected to the guide wheel 33 through the first link shaft 316.

In other embodiments, the first steering knuckle 312 may not have the first link 3124, and the first connection portion of the guide link 311 is directly connected to the second protrusion 3122 of the first steering knuckle 312 through the second link 317.

In some embodiments, as shown in fig. 5, the connection between the guide link 311 and the guide wheel 33 is pivotable. In some embodiments, as shown in fig. 5, the guide link 311 is connected to the guide wheel 33 via a first connecting shaft 316, and the guide link 311 and the guide wheel 33 can rotate around the first connecting shaft 316. Thereby, the guide wheel 33 rotates to smoothly guide the rail vehicle.

In some embodiments, as shown in fig. 5, the connection between the guide link 311 and the first steering knuckle 312 may be pivotable. In some embodiments, as shown in fig. 5, the guide link 311 is connected to the first steering knuckle 312 via a second connecting shaft 317, and the guide link 311 can swing up and down around the second connecting shaft 317 to vertically decouple the guide wheel 33 from the bogie 30. It should be noted that the vertical direction and the vertical direction are described herein, i.e., the direction of the Z axis in the drawing. Therefore, when the railway vehicle runs, the load condition of the railway vehicle can change at any time along with the gradual increase or decrease of passengers. According to different loading conditions of the railway vehicle, the guide connecting rod 311 rotates through the second connecting shaft 317, so that height changes caused by different loading conditions of the railway vehicle are self-adapted.

In some embodiments, as shown in fig. 5, the connection between the first knuckle 312 and the second knuckle 313 may pivot. In some embodiments, as shown in fig. 5, the first knuckle 312 and the second knuckle 313 are connected by a third connecting shaft 318, and the first knuckle 312 and the second knuckle 313 can rotate around the third connecting shaft 318. Thereby, the first steering knuckle 312 is connected with the running wheels 32, and the second steering knuckle 313 is arranged on the body 31 of the bogie 30, i.e. the running wheels 32 can rotate relative to the body 31 of the bogie, so that when the railway vehicle is bent over, the running wheels 32 rotate, and the bending over process of the railway vehicle is realized.

In some embodiments, as shown in fig. 1-2, the body 31 further includes a bridge body 319, a motor 3191, a drive shaft 3192, and a traction link 31933. A motor 3191 is provided on the axle body 319 for powering the bogie 30. One end of the transmission shaft 3192 is connected with the motor 3191, and the other end is connected with the running wheels 32. The traction link 31933 is coupled to the rail vehicle. During the operation of the railway vehicle, the motor 3191 rotates, and the rotation of the motor 3191 is transmitted to the running wheels 32 through the transmission shaft 3192 to drive the running wheels 32 to rotate. Wherein the traction link 31933 is coupled to the railway vehicle to transmit the traction and braking forces applied to the railway vehicle by the bogie 30.

In some embodiments, as shown in fig. 1-2, the body 31 further includes a shock absorber 314, and the shock absorber 314 is configured to reduce vertical shock of the bogie 30, thereby improving comfort during operation of the railway vehicle. It should be noted that the vertical direction of the bogie 30 described herein is the direction of the Z-axis in the drawings. In other embodiments, as shown in fig. 1-2, body 31 further includes a secondary spring 315, secondary spring 315 for carrying a rail vehicle. In other embodiments, the number of damping devices 314 may be one or two. In still other embodiments, the damping device 314 may be plural.

The rail transit system according to the embodiment of the present invention is provided with the steering system 10 according to any one of the above-described embodiments.

According to the rail transit system provided by the embodiment of the invention, the steering system 10 is arranged, so that the cost is reduced, and the steering stability and flexibility of the rail vehicle are improved.

The operation of the steering system 10 according to the embodiment of the present invention will be described with reference to fig. 1 to 5.

During the running process of the railway vehicle on the straight beam, the guide wheels 33 run in the guide grooves 21 on the railway beam 20, and the walking wheels 32 run on the beam surface of the railway beam 20, so that the railway vehicle stably runs.

When the load of the rail vehicle changes, the corresponding running wheels 32 deform, a gap is formed between the first running wheel 321 and the second running wheel 322, and a gap is formed between the third running wheel 323 and the fourth running wheel 324, so that the running wheels 32 deform, and the first running wheel 321 and the second running wheel 322 are not influenced, and the third running wheel 323 and the fourth running wheel 324 are not influenced.

When the load of the rail vehicle changes, the walking wheels 32 deform, and the height of the bogie 30 changes, at the moment, the guide connecting rod 311 swings up and down around the second connecting shaft 317, and self-adaptive adjustment is performed according to the height change of the bogie 30, so that the stress of the guide connecting rod 311 is reduced, and the guide wheels 33 are ensured to always walk in the guide grooves 21 to guide the rail vehicle.

When the rail vehicle enters the curved beam from the straight beam, the guide wheels 33 run along the guide grooves 21 on the curved beam, and the guide wheels 33 turn under the limit of the line of the guide grooves 21. The guide groove 21 defines the guide wheel 33, so that the guide wheel 33 is rotated, the rotation of the guide wheel 33 transmits a steering force to the guide link 311 through the first coupling shaft 316, the guide link 311 is coupled to the first knuckle 312, and thus the guide link 311 rotates the first knuckle 312. The first knuckle 312 is connected with the second knuckle 313 through the third connecting shaft 318, so that the first knuckle 312 can rotate relative to the second knuckle 313, the first knuckle 312 is connected with the running wheels 32, and the second knuckle 313 is arranged on the body 31 of the bogie 30, so that the first knuckle 312 drives the running wheels 32 to rotate, namely the running wheels 32 rotate relative to the body 31 of the bogie 30, and the operation of turning the railway vehicle is realized.

Further, the guide groove 21 is formed in the beam surface of the track beam 20, other additional structures do not need to be additionally arranged on the track beam 20, and only the guide groove 21 needs to be arranged along the extending direction of the track beam 20, so that the engineering amount can be greatly reduced, the cost is reduced on the one hand, and the occupied space is reduced on the other hand. In addition, the weight bearing of the track beam 20 does not need to be increased, which is beneficial to the stability of the track beam 20.

Therefore, the steering system 10 according to the embodiment of the present invention has a simple and stable structure, can realize self-steering of the bogie 30, and has high steering flexibility. The manufacturing cost of the track beam 20 can be reduced, the occupied space is reduced, and the stability of the track beam 20 is improved.

A steering system 10 according to one embodiment of the present invention is described below with reference to fig. 1-5.

In some embodiments of the present invention, as shown in fig. 1-5, a steering system 10 according to embodiments of the present invention includes a track beam 20 and a bogie 30.

As shown in fig. 1 to 2, the rail beam 20 is provided with a guide groove 21 on a beam surface 22. Wherein the track beam 20 comprises a curved beam and a straight beam. The bogie 30 includes a body 31, running wheels 32, and guide wheels 33. Running wheels 32 are rotatably provided on the body 31 and supported on the track beam 20. Running wheels 32 can run on the beam surface 22 of the rail beam 20. The guide wheel 33 is rotatably provided on the body 31. The guide wheels 33 are adapted to run in the guide grooves 21.

Thus, according to the steering system 10 of the embodiment of the present invention, the guide grooves 21 are provided on the beam surface 22 of the rail beam 20, the guide wheels 33 run in the guide grooves 21, and the guide grooves 21 fix the running paths of the guide wheels 33, thereby guiding the rail vehicle. Therefore, the steering system 10 is simple in structure, beneficial to reducing unsprung mass and improving stability of train operation, and high in guiding flexibility.

As shown in fig. 1 to 2, the guide wheels 33 are two, the first guide wheel 331 is disposed on the left side of the bogie 30, and the second guide wheel 332 is disposed on the right side of the bogie 30. Therefore, the number of the guide wheels is small, the structure is simple, the unsprung mass can be reduced, and the flexibility of guide of the guide wheels is improved.

As shown in fig. 1 to 2, the number of the running wheels 32 is four, the first running wheel 321 and the second running wheel 322 are arranged side by side on the left side of the bogie 30, and the third running wheel 323 and the fourth running wheel 324 are arranged side by side on the right side of the bogie 30. It should be noted that the left side of the bogie 30 is the negative direction of the X-axis, and the right side of the bogie 30 is the positive direction of the X-axis. Therefore, the four running wheels 32 are symmetrically and uniformly distributed on the left side and the right side of the bogie 30, and the stability of the railway vehicle in the running process can be improved.

As shown in fig. 1 to 2, the first running wheel 321 and the second running wheel 322 are disposed at intervals on the left side of the bogie 30, and the third running wheel 323 and the fourth running wheel 324 are disposed at intervals on the right side of the bogie 30. The first running wheels 321 are disposed on the left side of the first guide groove 211, the second running wheels 322 are disposed on the right side of the first guide groove 211, the third running wheels 323 are disposed on the left side of the second guide groove 212, and the fourth running wheels 323 are disposed on the right side of the second guide groove 212. This prevents the guide grooves 21 from interfering with the running wheels 32, thereby preventing the running wheels 32 from being unstable.

As shown in fig. 1-5, the body 31 further includes a guide link 311, a first knuckle 312, and a second knuckle 313. The guide link 311 is connected to the guide wheel 33 via a first connecting shaft 316. The first steering knuckle 312 is connected to the guide link 311 via the second connecting shaft 317, and the first steering knuckle 312 is connected to the running wheels 32. The second knuckle 313 is pivotably connected to the first knuckle 312 by a third connecting shaft 318. Therefore, the guide connecting rod 311, the first steering knuckle 312 and the second steering knuckle 313 are connected stably, the structure is simple, the steering stability is improved, and the unsprung mass is reduced.

As shown in fig. 5, the guide link 311 is connected to the guide wheel 33 via a first connecting shaft 316, and the guide link 311 and the guide wheel 33 are rotatable about the first connecting shaft 316. Thereby, the guide wheel 33 rotates to smoothly guide the rail vehicle.

As shown in fig. 5, the guide link 311 is connected to the first steering knuckle 312 via a second connecting shaft 317, and the guide link 311 can swing up and down around the second connecting shaft 317 to vertically decouple the guide wheel 33 from the bogie 30. It should be noted that the vertical direction and the vertical direction are described herein, i.e., the direction of the Z axis in the drawing. Therefore, when the railway vehicle runs, the load condition of the railway vehicle can change at any time along with the gradual increase or decrease of passengers. According to different loading conditions of the railway vehicle, the guide connecting rod 311 rotates through the second connecting shaft 317, so that height changes caused by different loading conditions of the railway vehicle are self-adapted.

As shown in fig. 5, the first knuckle 312 and the second knuckle 313 are connected by a third connecting shaft 318, and the first knuckle 312 and the second knuckle 313 are rotatable around the third connecting shaft 318. Thereby, the first steering knuckle 312 is connected with the running wheels 32, and the second steering knuckle 313 is arranged on the body 31 of the bogie 30, i.e. the running wheels 32 can rotate relative to the body 31 of the bogie, so that when the railway vehicle is bent over, the running wheels 32 rotate, and the bending over process of the railway vehicle is realized.

As shown in fig. 1-2, the body 31 further includes a shock absorbing device 314, and the shock absorbing device 314 is used for reducing the vertical shock of the bogie 30. It should be noted that the vertical direction of the bogie 30 described herein is the direction of the Z-axis in the drawings.

As shown in fig. 1-2, the body 31 further includes a secondary spring 315, the secondary spring 315 being used to carry a rail vehicle.

As shown in fig. 1-2, the body 31 further includes a bridge body 319, a motor 3191, a drive shaft 3192, and a traction link 31933. A motor 3191 is provided on the axle body 319 for powering the bogie 30. One end of the transmission shaft 3192 is connected with the motor 3191, and the other end is connected with the running wheels 32. The traction link 31933 is coupled to the rail vehicle. During the operation of the railway vehicle, the motor 3191 rotates, and the rotation of the motor 3191 is transmitted to the running wheels 32 through the transmission shaft 3192 to drive the running wheels 32 to rotate. Wherein the traction links 31933 are coupled to the railway vehicle to transmit the traction and braking forces applied to the railway vehicle by the bogie 30.

Other constructions and operations of a steering system 10 according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

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

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

Claims

1. A steering system, characterized by comprising:

the guide rail comprises a rail beam, wherein a guide groove is formed in the beam surface of the rail beam;

a bogie, the bogie comprising:

a body;

the walking wheels are rotatably arranged on the body and supported on the track beam;

the guide wheel is rotatably arranged on the body and is suitable for running in the guide groove;

the body further includes:

the guide connecting rod is connected with the guide wheel;

the first steering knuckle is respectively connected with the guide connecting rod and the walking wheel;

a second steering knuckle pivotably connected with the first steering knuckle;

the guide connecting rod is pivotally connected with the guide wheel;

the guide connecting rod is connected with the first steering knuckle in a pivoting mode.

2. The steering system according to claim 1, wherein the guide wheel is plural.

3. A steering system according to claim 2, wherein the guide wheels are two, one being provided on one side of the bogie and the other being provided on the other side of the bogie.

4. A steering system according to any one of claims 1 to 3, wherein the running wheels are plural.

5. A steering system according to claim 4, wherein the number of running wheels is four, two of the running wheels being provided on one side of the bogie and two of the other running wheels being provided on the other side of the bogie.

6. The steering system according to claim 5, wherein the two running wheels are located on the same side of the bogie, and the two running wheels are spaced apart and located on either side of the guide groove.

7. The steering system of claim 1, wherein the body further comprises:

a bridge main body;

the motor is arranged on the axle main body and used for providing power for the bogie;

and one end of the transmission shaft is connected with the motor, and the other end of the transmission shaft is connected with the walking wheels.

8. The steering system of claim 7, wherein the body further comprises a traction tie connected to a rail vehicle for traction of the rail vehicle.

9. The steering system of claim 1, wherein the body further comprises a shock absorbing device for reducing shock in a vertical direction of the truck.

10. A rail transit system comprising a steering system according to any one of claims 1-9.