CN113830123B

CN113830123B - Wheel set for track-variable bogie of railway vehicle and bogie

Info

Publication number: CN113830123B
Application number: CN202111333638.3A
Authority: CN
Inventors: 陈国胜; 蒲全卫; 秦烺; 何烨; 谌曦; 张又孔; 邓小星; 谢加辉; 钟晓波; 邹文辉
Original assignee: CRRC Zhuzhou Locomotive Co Ltd
Current assignee: CRRC Zhuzhou Locomotive Co Ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2023-05-02
Anticipated expiration: 2041-11-11
Also published as: WO2023082671A1; CN113830123A

Abstract

The invention provides a wheel set for a track-variable bogie of a railway vehicle and a bogie, wherein the wheel set for the track-variable bogie comprises wheels arranged on axles and track-variable devices arranged on the wheels; the track changing device comprises a bearing sleeve, a bearing assembly and at least two locking units; the bearing sleeves are arranged in axle boxes at two ends of the axle, and the bearing sleeves can axially move along the inner walls of the axle boxes; the bearing assembly comprises a first bearing and a second bearing, wherein an inner ring of the first bearing is fixedly connected to the periphery of the connecting sleeve, and an outer ring of the first bearing is arranged on the inner side of the bearing sleeve; the inner ring of the second bearing is fixedly connected to the axle, and the outer ring of the second bearing is arranged on the end cover; the locking units are axially arranged on the axle box body at intervals, and the bearing sleeve is provided with at least two locking states. The invention adopts the simple and reliable variable-track-gauge bogie which can meet the limit condition of the meter gauge so as to realize the interconnection and intercommunication between the standard gauge and the meter gauge of the railway vehicle.

Description

Wheel set for track-variable bogie of railway vehicle and bogie

Technical Field

The invention belongs to the technical field of railway vehicles, and particularly relates to a wheel set for a railway vehicle variable-track-gauge bogie and the bogie.

Background

Systematic research on gauge technology dates back to the 60 s of the last century. The most representative is the spanish Talgo gauge system which has a history of more than 50 years, and has mature technology and rich operation experience. Later research on gauge-changing technology was carried out in other countries in europe, such as the polish SUW2000 gauge-changing wheel set, the germany DB AG Rafil Type V gauge-changing wheel set, BRAVA gauge-changing bogies developed by spanish CAF corporation, etc. The plan of variable gauge trains was made in the 90 s of the last century in japan, aiming at solving the intermodal problem of the new trunk gauge and the existing narrow gauge line, and 3 generations of variable gauge trains have been developed so far. Other main technologies for changing the gauge include Swiss EV09 variable gauge bogie, korean KGCW gauge adjustable wheel set, spanish OGI variable gauge axle system, russian BOCTOK-3anaA variable gauge bogie for tank car, bulgarian variable gauge wheel set, etc.

The standard gauge and the wide rail have a smaller gauge difference of 85mm, the wheel set rail changing and locking mechanism is easy to realize, the vehicle limit is also easy to meet, and the variable gauge bogie is easy to realize technically.

The standard gauge and the narrow gauge meter gauge have larger gauge difference of 435mm, the traditional wheel set gauge change and locking mechanism is difficult to realize, the vehicle limit is difficult to meet, the motor and the basic braking device are difficult to arrange, and the technical difficulty of the gauge change bogie is larger.

The Chinese patent application ZL201810732522.9 discloses a wheel set for a track-variable bogie of a railway vehicle and the bogie, which comprises wheels, axles and locking components; the hub of the wheel is located at the outer side of the wheel and is outwards extended to form a connecting sleeve, the inner periphery of the hub of the wheel and/or the inner periphery of the connecting sleeve are/is provided with inner splines, two ends of the axle are respectively provided with outer splines matched with the inner splines, and the wheel and the axle are connected through the inner splines and the outer splines. The locking assembly is respectively pressed on the periphery of a connecting sleeve of a wheel and is positioned in axle box bodies at two ends of an axle, and comprises a group of bearing assemblies, a bearing jacket and a locking rod, wherein the inner periphery of the bearing jacket is provided with an annular positioning boss which divides the inner periphery of the bearing jacket into a pressing working face and a locking working face. The inner ring of the bearing assembly is pressed on the periphery of the connecting sleeve, the outer ring of the bearing assembly is pressed on the press-mounting working surface of the bearing jacket, and the bearing jacket is in clearance fit with the axle box body. The locking working surface is provided with a plurality of inner ring grooves along the axial direction at intervals, and is provided with sliding grooves which axially penetrate through the plurality of inner ring grooves, and the bottom of the axle box body is provided with matching holes corresponding to the sliding grooves. The locking rod comprises a locking head and an unlocking head, the locking head is used for being clamped into the inner ring grooves to lock the wheel and the axle box body, the unlocking head extends out of the sliding groove and the matching hole, and the locking head can be switched among the inner ring grooves under the action of external force so as to realize the wheel track distance changing. However, the track changing structure has one group of bearings per axle box, and one locking mechanism cannot adapt to track changing with large displacement, such as track changing from standard track gauge to meter track.

Disclosure of Invention

The invention aims to provide a wheel set for a track-variable bogie of a railway vehicle and the bogie, which aim to solve the technical problem of interconnection between standard rails and meter rails of the railway vehicle.

In order to solve the technical problems, the specific technical scheme of the invention is as follows:

the wheel set for the variable-track bogie comprises wheels, axle boxes and a track changing device, wherein the wheels are arranged on an axle, the axle boxes are arranged at two ends of the axle, and the track changing device is arranged at the two ends of the axle; the wheel hub of the wheel is positioned at the outer side of the wheel, a connecting sleeve extends outwards, the track changing device is arranged at the periphery of the connecting sleeve and is positioned in the axle box, and the axle box comprises an axle box body and an end cover arranged on the axle box body;

the track changing device comprises a bearing sleeve, a bearing assembly and at least two locking units; the bearing sleeve is arranged in the axle box and can axially move along the inner wall of the axle box;

the bearing assembly comprises a first bearing and a second bearing, wherein an inner ring of the first bearing is fixedly connected to the periphery of the connecting sleeve, and an outer ring of the first bearing is arranged on the inner side of the bearing sleeve; the inner ring of the second bearing is fixedly connected to the axle, and the outer ring of the second bearing is arranged on the end cover;

the locking units are axially arranged on the axle box body at intervals, the bearing sleeve is provided with at least two locking states, the bearing sleeve is in a first locking state when being matched with the first locking unit to limit, and the bearing sleeve is in a second locking state when being matched with the second locking unit to limit.

Therefore, the wheel pair axle box rail-changing device with the double locking units and the double bearings can realize the large-range axial movement of the wheels relative to the axle box body and the axle, thereby achieving the rail-changing purpose. The two locking units are axially arranged on the axle box body at intervals, so that the track transfer device has two locking states: the meter gauge state and the standard gauge state are used for realizing interconnection and intercommunication between standard gauge and meter gauge of a locomotive or a motor train unit.

Specifically, be equipped with first locking unit and second locking unit on the axle box, the bearing housing has two locking states: a meter track state and a standard track state;

the axle box body is provided with a first locking unit and a second locking unit, and when the wheels are in a meter-gauge state, the first locking unit is clamped into the limit groove of the bearing sleeve;

and when the wheels are in the standard rail state, the second locking unit is clamped into the limit groove of the bearing sleeve.

Further, be equipped with a plurality of mounting holes on the axle box, locking unit set up in the mounting hole, locking unit includes elastic component, locking pin and locking gland, locking gland set up in the outer wall surface of axle box, the locking pin sets up locking is covered and to extend in the axle box, the locking pin is in be equipped with the locking dish in the mounting hole, be equipped with the elastic component between locking dish and the locking gland.

Still further, the locking pin includes locking head and unlocking head, the locking head card is gone into in the spacing groove of bearing housing will the bearing housing locks, the unlocking head extends locking gland, the unlocking head will under the exogenic action locking head with the spacing groove separation, specifically, because locking gland is fixed on the axle box, consequently the locking dish is under the elastic force of elastic component upward movement, drives the locking head card is gone into in the spacing groove of bearing housing. Under the action of external force, the unlocking head drives the locking disc to move downwards to compress the elastic piece, and meanwhile, the locking head is separated from the limiting groove to complete unlocking.

In addition, the end part of the axle is provided with a speed measuring fluted disc.

Based on the same conception, the invention also provides a track-variable bogie for the railway vehicle, which comprises a framework and a series of hanging devices arranged on the framework, wherein the framework is provided with the wheel set for the track-variable bogie through the series of hanging devices, and the wheel set is driven by a motor driving device.

Further, the motor driving device comprises a traction motor, a disc brake and a gear box, one end of the gear box is arranged on an axle, and the other end of the gear box is connected with the traction motor through a coupler; the disc brake comprises an input shaft disc brake device and an output shaft disc brake device, wherein the input shaft disc brake device is arranged on the non-motor side of the input shaft end of the gear box, and the output shaft disc brake device is arranged on an axle.

Further, two groups of motor driving devices are arranged on the framework, and each group of motor driving devices comprises a one-position wheel set motor driving device and a two-position wheel set motor driving device;

the arrangement mode of the motor drive of the two-position wheel set is consistent with the arrangement mode of the motor drive of the one-position wheel set after being mirrored relative to the longitudinal center line of the bogie, so as to ensure that the loads of the left wheel and the right wheel are uniformly distributed; or (b)

The one-position wheel set motor drive and the two-position wheel set motor drive are oppositely arranged.

Still further, the gearbox is suspended from the cross beams and/or end beams of the frame by hangers.

Further, one side of the traction motor is mounted on a cross beam and/or an end beam of the frame and is arranged outside the wheel in both the longitudinal and transverse directions of the bogie.

Furthermore, the input shaft unit brake and the output shaft unit brake are mounted obliquely on the cross beam and/or the end beam of the frame.

The wheel set for the track-variable bogie of the railway vehicle and the bogie have the following advantages: the simple and reliable gauge-variable bogie capable of meeting the gauge-gauge limit condition is realized through arrangement of wheel set motor drive, an axle box, a wheel and axle integrated gauge-variable mechanism and two sets of locking mechanisms, so that interconnection and intercommunication between gauge rails of a locomotive or a motor train unit are realized.

Drawings

FIG. 1 is a top view of a bogie of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1 (labeled rail state);

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a cross-sectional view A-A of FIG. 1 (meter rail state);

FIG. 5 is a cross-sectional view B-B of FIG. 4;

FIG. 6 is a wheel set motor drive layout of the present invention;

FIG. 7 is a front view of the bogie of the present invention;

FIG. 8 is a motor mounting diagram of the present invention;

FIG. 9 is a mounting view of the gearbox of the present invention;

fig. 10 is a foundation brake layout of the present invention.

The figure indicates: 1. a frame; 2. a wheel set motor drive; 3. the two-position wheel pair motor is driven; 4. a series of suspensions; 5. a secondary steel spring; 6. a middle single traction rod; 7. a transverse damper; 8. a vertical vibration damper; 9. an output shaft unit brake; 10. an input shaft unit brake; 21. an axle box; 22. a wheel; 23. an input shaft disc brake device; 24. a gear box; 25. a coupling; 26. an axle; 27. an output shaft disc brake device; 28. a traction motor; 101. a front end beam; 102. a cross beam; 103. a rear end beam; 211. axle box body; 212. a bearing sleeve; 213. a first bearing; 214. a second bearing; 215. an end cap; 217. locking the gland; 218. a locking disc; 219. an elastic member; 220. a hub; 221. a limit groove; 222. connecting sleeves; 223. a locking pin; 224. a first locking unit; 225. a second locking unit; 240. a gear housing; 241. a driven gear; 242. intermediate wheels; 243. a drive gear; 244. and (5) hanging.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings for a better understanding of the objects, structures and functions of the present invention.

As shown in fig. 1 and 7, the track gauge bogie for railway vehicles of the present invention comprises a frame 1, a primary suspension 4, a secondary steel spring 5, a middle single traction rod 6, a motor driving device, a vertical damper 8, a transverse damper 7, an output shaft unit brake 9 and an input shaft unit brake 10; the primary suspension 4 comprises a steel spring and a single-axle box pull rod, and the framework is provided with a wheel set for the variable-track bogie through the primary suspension device 4, and the wheel set is driven by the motor driving device.

As shown in fig. 4 and 5, the wheel set includes a wheel 22, an axle 26, and a track-change device; the hub 220 of the wheel 22 is located at the outer side of the wheel 22, and a connecting sleeve 222 extends outwards, so that in order to ensure enough strength, the connecting sleeve 222 and the hub 220 of the wheel 22 are preferably integrally formed to form an elongated hub, the wheel 22 is directly driven to move or lock by using the rail changing device, the operation is simple, the adjustment is convenient, and the improvement on the wheel 22 is small; the inner periphery of the hub of the wheel 22 and/or the inner periphery of the connecting sleeve 222 are provided with inner splines, two ends of the axle 26 are respectively provided with outer splines matched with the inner splines, the wheel 22 and the axle 26 are connected with the outer splines through the inner splines, the track changing device is arranged on the outer periphery of the connecting sleeve 222 and is positioned in axle boxes 21 at two ends of the axle 26, and each axle box 21 comprises an axle box 211 and end covers 215 arranged on the axle box 211; the end part of the axle 26 is provided with a speed measuring fluted disc 216; the mechanism can realize axial movement of the wheel 22 relative to the axle box 211 and the axle 26, thereby achieving the purpose of rail transfer.

As shown in fig. 3 and 4, the track-changing device includes a bearing housing 212, a bearing assembly, and at least two locking units; the bearing sleeve 212 is arranged in the axle box 21, and the bearing sleeve 212 can axially move along the inner wall of the axle box 21; the bearing assembly comprises a first bearing 213 and a second bearing 214, wherein an inner ring of the first bearing 213 is fixedly connected to the periphery of the connecting sleeve 222, and an outer ring of the first bearing 213 is mounted on the inner side of the bearing sleeve 212; the inner ring of the second bearing 214 is fixedly connected to the axle 26, and the outer ring of the second bearing 214 is mounted on the end cover 215; as shown in fig. 2 and fig. 4, the locking units are axially spaced on the axle housing 211, the bearing housing 212 has at least two locking states, the bearing housing 212 cooperates with the first locking unit to limit when moving to the first locking state, and the bearing housing 212 cooperates with the second locking unit to limit when moving to the second locking state.

As shown in fig. 3, the axle box 211 is provided with a plurality of mounting holes, the locking unit is disposed in the mounting holes, the locking unit includes an elastic member 219, a locking pin 223 and a locking gland 217, the locking gland 217 is disposed on an outer wall surface of the axle box 211, the locking pin 223 is disposed on the locking gland 217 and extends into the axle box 211, the locking pin 223 is provided with a locking disk 218 in the mounting holes, and the elastic member 219 is disposed between the locking disk 218 and the locking gland 217; the locking pin 223 comprises a locking head and an unlocking head, the locking head is clamped into the limit groove 221 of the bearing sleeve 212 to lock the bearing sleeve 212, the unlocking head extends out of the locking gland 217, and the locking head is separated from the limit groove 221 under the action of external force.

As shown in fig. 2 and 4, as a preferred embodiment of the present invention, the axle housing 211 is provided with a first locking unit 224 and a second locking unit 225, and the bearing housing 212 has two locking states: a standard rail state and a meter rail state; the axle box 211 is provided with a first locking unit 224 and a second locking unit (225), as shown in fig. 2, when the wheel is in a standard rail state, the second locking unit 225 is clamped into the limit groove 221 of the bearing sleeve 212; as shown in fig. 4, the first locking unit 224 is locked into the limit groove 221 of the bearing housing 212 when the wheel is in the meter-rail state.

As shown in fig. 1 and 6, the motor drive device comprises a traction motor 28, a disc brake and a gearbox 24, as shown in fig. 9, the gearbox comprising a driving gear 243, a intermediate wheel 242, a driven gear 241, a gearbox housing 240, the gearbox 24 being suspended from the cross beam 102 and/or end beams of the frame 1 by means of a suspension 244. One end of the gear box 24 is arranged on an axle 26, the other end of the gear box 24 is connected with the traction motor 28 through a coupler 25, and traction force and braking force are transmitted between the traction motor 28 and the axle 26 through the coupler 25 and the gear box 24 with an intermediate wheel; the traction motor 28 is fixedly connected to the cross beam 102 or the rear end beam 103 of the framework 1 at one side through bolts, and is arranged outside the wheels in the longitudinal direction and the transverse direction of the bogie, so that the installation space size requirements of the traction motor with high power and the gearbox are met. The disc brake comprises an input shaft disc brake device 23 and an output shaft disc brake device 27, wherein the input shaft disc brake device 23 is arranged on the non-motor side of the input shaft end of the gear box 24, and the output shaft disc brake device 27 is arranged on the axle 26; as shown in fig. 1, two groups of motor driving devices are arranged on the framework 1, and each group of motor driving devices comprises a one-position wheel set motor driving device 2 and a two-position wheel set motor driving device 3; the arrangement mode of the two-position wheel set motor drive 3 is consistent with the arrangement mode of the one-position wheel set motor drive 2 after being mirrored relative to the longitudinal center line of the bogie, so as to ensure that the loads of the left wheel and the right wheel are uniformly distributed; as another preferable aspect of the present invention, the one-position wheel set motor drive 2 and the two-position wheel set motor drive 3 are disposed opposite to each other.

As shown in fig. 8, one side of the traction motor 28 is mounted on the cross beam 102 and/or end beam of the frame 1 and is arranged outside the wheels in both the longitudinal and transverse directions of the bogie.

As shown in fig. 10, the input shaft unit brake 10 and the output shaft unit brake 9 are mounted obliquely to the cross beam 102 and/or end beam of the frame 1.

As shown in fig. 1, the bogie of the present invention is further provided with a secondary vertical shock absorber 8, the secondary vertical shock absorber 8 is disposed at the inner side of the side beam of the frame 1, and the secondary transverse shock absorber 7 having anti-hunting damping characteristics is mounted at the front end beam 101 or the rear end beam 103 of the frame, so as to meet the limit requirements of the rice rail vehicle.

It will be understood that the invention has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. A wheel set for a track-changing bogie comprises wheels (22) mounted on an axle (26), axle boxes (21) arranged at two ends of the axle (26), and a track-changing device; the hub (220) of the wheel (22) is positioned at the outer side of the wheel (22) and extends outwards to form a connecting sleeve (222), the track changing device is arranged at the periphery of the connecting sleeve (222) and is positioned in the axle box (21), and the axle box (21) comprises an axle box body (211) and an end cover (215) arranged on the axle box body (211); the method is characterized in that:

the track changing device comprises a bearing sleeve (212), a bearing assembly and at least two locking units; the bearing sleeve (212) is arranged in the axle box (21), and the bearing sleeve (212) can axially move along the inner wall of the axle box (21);

the bearing assembly comprises a first bearing (213) and a second bearing (214), wherein the inner ring of the first bearing (213) is fixedly connected to the periphery of the connecting sleeve (222), and the outer ring of the first bearing (213) is arranged on the inner side of the bearing sleeve (212); the inner ring of the second bearing (214) is fixedly connected to the axle (26), and the outer ring of the second bearing (214) is mounted on the end cover (215);

the locking units are axially arranged on the axle box body (211) at intervals; the limiting groove (221) on the bearing sleeve (212) is formed in the outer surface of the bearing sleeve (212) and corresponds to the first bearing (213) in the radial direction;

the bearing sleeve (212) is provided with at least two locking states, when the bearing sleeve (212) is matched and limited with a first locking unit, the wheel is in a meter-rail state, when the bearing sleeve (212) is matched and limited with a second locking unit, the wheel is in a standard-rail state, the first locking unit is close to one side of the wheel (22), and the second locking unit is far away from one side of the wheel (22).

2. The wheel set for the variable-track bogie according to claim 1, wherein a plurality of mounting holes are formed in the axle box body (211), the locking unit is arranged in the mounting holes, the locking unit comprises an elastic member (219), a locking pin (223) and a locking gland (217), the locking gland (217) is arranged on the outer wall surface of the axle box body (211), the locking pin (223) is arranged on the locking gland (217) and extends into the axle box body (211), the locking pin (223) is provided with a locking disc (218) in the mounting holes, and an elastic member (219) is arranged between the locking disc (218) and the locking gland (217).

3. The wheel set for the variable track bogie according to claim 2, wherein the locking pin (223) includes a locking head and an unlocking head, the locking head is clamped into a limit groove (221) of the bearing housing (212) to lock the bearing housing (212), the unlocking head extends out of the locking gland (217), and the unlocking head separates the locking head from the limit groove (221) under the action of an external force.

4. A wheelset for a variable gauge bogie as claimed in any one of claims 1 to 3, wherein a tachometer disc (216) is mounted to an end of the axle (26).

5. A railway vehicle variable gauge bogie comprising a frame (1) and a series of suspension devices (4) provided on the frame (1), characterized in that the frame is fitted with a wheel set for a variable gauge bogie as claimed in any one of claims 1 to 4 via a series of suspension devices (4), said wheel set being driven by a motor drive.

6. The railway vehicle variable gauge bogie according to claim 5, characterized in that the motor drive comprises a traction motor (28), a disc brake and a gearbox (24), one end of the gearbox (24) being mounted on an axle (26), the other end of the gearbox (24) being connected to the traction motor (28) by a coupling (25); the disc brake comprises an input shaft disc brake device (23) and an output shaft disc brake device (27), wherein the input shaft disc brake device (23) is arranged on the non-motor side of the input shaft end of the gear box (24), and the output shaft disc brake device (27) is arranged on the axle (26).

7. The railway vehicle variable gauge bogie of claim 6, wherein two sets of said motor drives are provided on said frame (1), said two sets of motor drives comprising a one-wheel-set motor drive (2) and a two-wheel-set motor drive (3);

the arrangement mode of the two-position wheel set motor drive (3) is consistent with the arrangement mode of the one-position wheel set motor drive (2) after being mirrored relative to the longitudinal center line of the bogie; or (b)

The primary wheel set motor drive (2) and the secondary wheel set motor drive (3) are oppositely arranged.

8. The railway vehicle variable gauge bogie of claim 7, wherein the gearbox (24) is suspended from the cross beam (102) and/or end beam of the frame (1) by a hanger (244).

9. Railway vehicle variable gauge bogie according to claim 7, characterized in that one side of the traction motor (28) is mounted on a cross beam (102) and/or end beam of the frame (1) and is arranged outside the wheels in both longitudinal and transverse direction of the bogie.

10. Railway vehicle variable gauge bogie according to claim 7, characterized in that the input shaft unit brake (10) and the output shaft unit brake (9) are mounted obliquely on the cross beam (102) and/or end beam of the frame (1).