CN214450922U - Driving device for three-axis bogie and three-axis bogie - Google Patents
Driving device for three-axis bogie and three-axis bogie Download PDFInfo
- Publication number
- CN214450922U CN214450922U CN202120016985.2U CN202120016985U CN214450922U CN 214450922 U CN214450922 U CN 214450922U CN 202120016985 U CN202120016985 U CN 202120016985U CN 214450922 U CN214450922 U CN 214450922U
- Authority
- CN
- China
- Prior art keywords
- axle
- tooth
- motor
- bogie
- hollow shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000008878 coupling Effects 0.000 claims abstract description 45
- 238000010168 coupling process Methods 0.000 claims abstract description 45
- 238000005859 coupling reaction Methods 0.000 claims abstract description 45
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 230000036316 preload Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 15
- 230000008859 change Effects 0.000 abstract description 2
- 239000000725 suspension Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003137 locomotive effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000032370 Secondary transmission Diseases 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The utility model discloses a driving device for a three-axis bogie and a three-axis bogie, which comprises a motor, a hollow shaft sleeved on the axle of the bogie, a power shaft sleeved at one end of the hollow shaft and a big gear fixed on the power shaft; and a pinion in meshing transmission with the gearwheel is arranged on an output shaft of the motor, one end of the hollow shaft is connected with the power shaft through a diaphragm coupling structure, and the other end of the hollow shaft is connected with the axle through a tooth coupling structure. According to the driving device, the traditional wheel pair six-connecting-rod hollow shaft structure is replaced by a tooth type and diaphragm coupling structure. The tooth-type sliding structure of the tooth-type coupling can meet the requirement of the three-axle bogie on the transverse motion displacement of the driving device, and the diaphragm structure can meet the requirement of the radial motion displacement. Therefore, the motor can adaptively change the local size structure through the structure so as to realize the spatial arrangement of the motor.
Description
Technical Field
The utility model relates to a rail vehicle bogie technical field especially relates to a drive arrangement and triaxial bogie for triaxial bogie.
Background
With the batch application of 160km power-concentrated motor train units at the speed per hour in China, the method shows outstanding economy, and the proposal of the 200km/h power-concentrated motor train unit capable of running across a high-speed rail is promoted. In the future, a 200km/h power concentrated motor train unit capable of running across a high-speed railway and a common line has economic and performance advantages. The motor train unit running across the high-speed railway requires that the axle load is not more than 17t, the maximum single-axle power of high-speed locomotives (power cars) in the world is 1600kW at most at present, and the axle load of the corresponding locomotive (power car) is about 21-22 t. Under the limit of 17t axle weight, the single-axle power hardly breaks 1400 kW. Therefore, the power-concentrated motor train unit adopting the Bo bogie is difficult to achieve the balance of speed and traction force, and the waste of resources is caused by the arrangement of more power vehicles. Therefore, a Co bogie type power-concentrated motor train unit capable of matching speed and traction balance is expected, and the Co bogie has better capability retention after single drive failure. According to a conventional power concentration type motor train unit grouping form, the required power vehicle power is 6400kW, and the starting traction force is 240 kN. The overall performance of the six-axle power vehicle adopting the Co bogie is not less than the requirement. The key factor limiting the Co bogie is the lack of a drive means to adapt the bogie.
The axle weight of the motor train unit is controlled to be 17t, small-wheel-diameter wheels (1050mm wheel diameter) must be adopted, and the traditional large-wheel-diameter wheels (1250mm wheel diameter) cannot meet the axle weight requirement. Under the current technical conditions, the high-speed small-wheel-diameter three-shaft bogie has mandatory technical requirements on a driving device: 1. the motor is suspended, 2, a wheel disc or an axle disc is braked, 3, the wheel pair and the motor have larger transverse displacement (more than 10 mm), and 4, the driving unit has smaller longitudinal size. One solution is given in CN201710784210.8 patent "low axle weight high speed motor car bogie driving device", as shown in fig. 1, a six-bar hollow axle mechanism 8 is arranged in the middle of the wheel set, so that the wheel set 7 is set to brake. However, the method needs to enlarge the center distance between the motor 1 and the axle 9, and usually, the gear box needs to be provided with an intermediate wheel or a secondary transmission system 2, and the center distance is large, so that the longitudinal size of the whole driving device is long, and the driving device is only suitable for Bo two-axle bogies and is not suitable for Co three-axle bogies.
CN201210563160.8 three-axle bogie and CN200910258657.7 three-axle bogie for 160km/h wide-rail high-speed passenger electric locomotive disclose an elastic suspension driving device and an installation method thereof. The driving device is a traditional wheel pair six-connecting-rod hollow shaft transmission system and is only suitable for large wheels. But the elastic suspension mounting method is wide and applicable.
Another difficulty with Co three-axle trucks is that the intermediate shaft drive requires a large lateral displacement that a conventional six-bar hollow shaft rubber joint can accommodate, but is not sized for small wheels to pass through the three-axle truck. It is also a difficult problem to find a coupling which meets the requirement of lateral displacement.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art not enough, provide the drive arrangement of the high-speed steamboat footpath three-axle bogie of adaptation and have this drive arrangement's triaxial bogie, satisfy the requirement of high-speed triaxial bogie to its power, traction force, lateral displacement.
In order to solve the technical problem, the utility model discloses a following technical scheme:
a driving device for a three-axle bogie comprises a motor, a hollow shaft sleeved on an axle of the bogie, a power shaft sleeved at one end of the hollow shaft, and a large gear fixed on the power shaft; and a pinion in meshing transmission with the gearwheel is arranged on an output shaft of the motor, one end of the hollow shaft is connected with the power shaft through a diaphragm coupling structure, and the other end of the hollow shaft is connected with the axle through a tooth coupling structure.
According to the driving device, the traditional wheel pair six-connecting-rod hollow shaft structure is replaced by a tooth type and diaphragm coupling structure. The tooth-type sliding structure of the tooth-type coupling can meet the requirement of the three-axle bogie on the transverse motion displacement of the driving device, and the diaphragm structure can meet the requirement of the radial motion displacement. Therefore, the motor can adaptively change the local size structure through the structure so as to realize the spatial arrangement of the motor.
As a further improvement of the above technical solution:
the diaphragm coupling structure comprises a connecting disc sleeved at the end part of the hollow shaft and a diaphragm coupling sleeved on the connecting disc, one end of the connecting disc is connected with the power shaft, one side of the other end of the connecting disc, which is back to the motor, is provided with a first extending part which extends outwards, and the first extending part is connected with the diaphragm coupling; one end of the hollow shaft connected with the power shaft, facing one side of the motor, is provided with a second extending part extending outwards, and the second extending part is connected with the diaphragm coupling. The diaphragm is capable of accommodating radial displacement of the wheel set relative to the frame.
For further adaptation triaxial bogie wheel to the requirement of drive arrangement lateral motion displacement, the connection pad is equipped with first tooth towards the one end terminal surface of power shaft, the one end terminal surface of power shaft towards the connection pad is equipped with the second tooth with first tooth meshing, the connection pad passes through the pretension piece with the power shaft and links to each other.
And the other end of the connecting disc is upwards sunken towards one side of the motor, so that an accommodating space of the diaphragm coupling and an installation space of the preload piece are formed between the connecting disc and the second extension part.
The gear coupling structure comprises an inner gear sleeve fixed on the axle and an outer gear sleeve sleeved on the inner gear sleeve, third teeth extending along the axial direction of the axle are arranged on the outer circumference of the inner gear sleeve, fourth teeth meshed with the third teeth are arranged on the inner circumference of the outer gear sleeve, and one end, facing the hollow shaft, of the outer gear sleeve is connected with the hollow shaft through a fastener. The diameter of the tooth-type sliding structure is reduced, and the radial space is reduced.
The outer gear sleeve and the inner gear sleeve transmit torque through a gear structure, the inner gear sleeve is connected to an axle through interference fit, and then the torque is transmitted to a wheel pair. The tooth-type sliding structure formed by the outer tooth sleeve and the inner tooth sleeve can adapt to the axial displacement (more than 10 mm) of the wheel pair relative to the framework.
As a general inventive concept, the present invention further provides a three-axle bogie, which comprises a frame, a wheel set mounted on the frame, and the driving device for the three-axle bogie, wherein the power shaft is connected with a gear box, the large gear and the small gear are both arranged in the gear box, and the gear box and the motor are both hung on the frame.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses a drive arrangement for triaxial bogie is through replacing traditional wheel pair six connecting rod hollow shaft structure into tooth-like + diaphragm coupling structure. The tooth-type sliding structure of the tooth-type + diaphragm coupling can meet the requirement of the three-axle bogie on the transverse motion displacement of the wheel pair driving device, and the diaphragm structure can meet the requirement of the radial motion displacement.
2. The utility model discloses a drive arrangement for triaxial bogie, through being connected outer tooth cover and hollow axle, interior tooth cover is connected to the axletree through interference fit on, helps reducing tooth-like sliding structure's diameter, reduces radial space.
Drawings
Fig. 1 is a sectional view of a conventional wheelset six-link hollow axle elastomeric suspension drive.
Fig. 2 is a cross-sectional view of a drive device for a three-axle bogie according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a tooth + diaphragm coupling in an embodiment of the present invention.
Fig. 4 is a partially enlarged schematic view of a portion a in fig. 2.
Fig. 5 is a partially enlarged schematic view of a portion B in fig. 2.
Illustration of the drawings: 1. a motor; 9. an axle; 21. a power shaft; 22. a hollow shaft; 221. a second extension portion; 23. a bull gear; 24. a pinion gear; 25. a gear case; 3. a tooth coupling structure; 31. an inner gear sleeve; 32. an outer gear sleeve; 33. a fastener; 6. a diaphragm coupling structure; 61. a connecting disc; 611. a first extension portion; 62. a diaphragm coupling; 63. and (4) pre-tightening the piece.
Detailed Description
The invention is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the invention.
Example 1:
as shown in fig. 2, the driving apparatus for a three-axle bogie of the present embodiment includes a motor 1 and a transmission system 2. The transmission system 2 comprises a gear box 25, a hollow shaft 22 sleeved on the axle 9 of the bogie, a power shaft 21 sleeved on one end of the hollow shaft 22, and a large gear 23 fixed on the power shaft 21; the output shaft of the motor 1 is provided with a pinion 24 which is in meshing transmission with a gearwheel 23, one end of a hollow shaft 22 is connected with a power shaft 21 through a diaphragm coupling structure 6, and the other end of the hollow shaft 22 is connected with an axle 9 through a tooth coupling structure 3. The power shaft 21 is connected with a gear box 25 in a shaft-encircling manner, and the large gear 23 and the small gear 24 are arranged in the gear box 25. The gear box 25 is hung on the framework through the swing rod hanging seat 5, and the motor 1 is installed on the framework through the motor installation seat 4, the suspension cross beam 10 and the swing rod hanging seat 5 arranged on the suspension cross beam 10. A disc brake 7 is mounted on the frame and is used to brake the wheel. The motor 1, the suspension cross beam 10, the motor mounting seat 4, the swing rod suspension seat 5 and the wheel disc foundation brake 7 are conventional technologies.
As shown in fig. 3 and 4, the diaphragm coupling structure 6 includes a connecting plate 61 sleeved on the end of the hollow shaft 22 and a diaphragm coupling 62 sleeved on the connecting plate 61, one end of the connecting plate 61 is connected with the power shaft 21, specifically, one end surface of the connecting plate 61 facing the power shaft 21 is provided with a first tooth, one end surface of the power shaft 21 facing the connecting plate 61 is provided with a second tooth engaged with the first tooth, and the connecting plate 61 is connected with the power shaft 21 through a preload member 63. One side of the other end of the connecting disc 61, which faces away from the motor 1, is provided with a first extending part 611 extending outwards, and the first extending part 611 is connected with the diaphragm coupling 62; one end of the hollow shaft 22 connected with the power shaft 21 is provided with a second extending part 221 extending outwards towards one side of the motor 1, and the other end of the connecting disc 61 is recessed upwards towards one side of the motor 1, so that an accommodating space of the diaphragm coupling 62 and an installation space of the preload piece 63 are formed between the connecting disc 61 and the second extending part 221. The second extension 221 is connected to the diaphragm coupling 62.
As shown in fig. 3 and 5, the gear coupling structure 3 includes an inner gear sleeve 31 fixed to the axle 9 and an outer gear sleeve 32 fitted over the inner gear sleeve 31, third teeth extending in the axial direction of the axle are provided on the outer circumference of the inner gear sleeve 31, fourth teeth meshing with the third teeth are provided on the inner circumference of the outer gear sleeve 32, and the end of the outer gear sleeve 32 facing the hollow shaft 22 is connected to the hollow shaft 22 by a fastener 33.
With continued reference to fig. 2, the torque of the motor 1 is transmitted to the transmission system 2, the power shaft 21 in the transmission system transmits the torque to the connecting disc 61 of the diaphragm coupling structure 6 through the end tooth structure 100, and the power shaft 21 and the connecting disc 61 are connected through the preload member 63 (bolt). The torque is transmitted to the hollow shaft 22 and further to the outer sleeve gear 32 via the connecting plate 61 and the diaphragm coupling 62, and the outer sleeve gear 32 and the hollow shaft 22 are connected by the fastener 33 (bolt). The outer gear sleeve 32 and the inner gear sleeve 31 transmit torque through a gear structure, the inner gear sleeve 31 is connected to the axle 9 through interference fit, and the torque is transmitted to the wheel pair. The diaphragm coupling 62 can adapt to the radial displacement of the wheel pair relative to the framework, and the tooth-type sliding structure formed by the outer gear sleeve 32 and the inner gear sleeve 31 can adapt to the axial displacement (more than 10 mm) of the wheel pair relative to the framework. The outer toothed sleeve 32 is connected to the hollow shaft 22 and the inner toothed sleeve 31 is connected to the axle 9 by interference fit, which contributes to reducing the diameter of the tooth glide and reducing the radial space. The motor 1 can realize the spatial arrangement thereof by adaptively changing the local size structure. Preferably, the drive means is suspended from the bogie by means of a resilient suspension.
The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.
Claims (6)
1. A driving device for a three-axle bogie is characterized by comprising a motor (1), a hollow shaft (22) sleeved on an axle (9) of the bogie, a power shaft (21) sleeved on one end of the hollow shaft (22), and a large gear (23) fixed on the power shaft (21); the output shaft of the motor (1) is provided with a pinion (24) in meshing transmission with the gearwheel (23), one end of the hollow shaft (22) is connected with the power shaft (21) through a diaphragm coupling structure (6), and the other end of the hollow shaft (22) is connected with the axle (9) through a tooth coupling structure (3).
2. The driving device for the three-axle bogie according to claim 1, wherein the diaphragm coupling structure (6) comprises a connecting disc (61) sleeved on the end of the hollow axle (22) and a diaphragm coupling (62) sleeved on the connecting disc (61), one end of the connecting disc (61) is connected with the power axle (21), one side of the other end of the connecting disc (61) facing away from the motor (1) is provided with a first extension part (611) extending outwards, and the first extension part (611) is connected with the diaphragm coupling (62); one end of the hollow shaft (22) connected with the power shaft (21) faces one side of the motor (1) and is provided with a second extending portion (221) extending outwards, and the second extending portion (221) is connected with the diaphragm coupling (62).
3. Drive arrangement for a triaxial bogie according to claim 2, characterised in that the end of the coupling disc (61) facing the power shaft (21) is provided with a first tooth, that the end of the power shaft (21) facing the coupling disc (61) is provided with a second tooth engaging the first tooth, and that the coupling disc (61) is connected to the power shaft (21) by means of a preload element (63).
4. The drive device for a triaxial bogie according to claim 3, wherein the other end of the coupling disc (61) is recessed upward toward one side of the motor (1) such that a receiving space for the diaphragm coupling (62) and a mounting space for the preload member (63) are formed between the coupling disc (61) and the second extension (221).
5. The drive device for a three-axle bogie according to claim 1, characterised in that the tooth coupling arrangement (3) comprises an inner tooth sleeve (31) fixed to the axle (9) and an outer tooth sleeve (32) fitted over the inner tooth sleeve (31), that the outer circumference of the inner tooth sleeve (31) is provided with third teeth extending in the axial direction of the axle, that the inner circumference of the outer tooth sleeve (32) is provided with fourth teeth engaging with the third teeth, and that the end of the outer tooth sleeve (32) facing the hollow shaft (22) is connected to the hollow shaft (22) by means of a fastening element (33).
6. A three-axle bogie comprising a frame and wheel sets mounted thereon, characterized in that it further comprises a drive arrangement for a three-axle bogie according to any of claims 1-5, the power shaft (21) being journalled to a gear box (25), the gearwheel (23) and the pinion (24) being arranged in the gear box (25), the gear box (25) and the motor (1) being suspended from the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120016985.2U CN214450922U (en) | 2021-01-05 | 2021-01-05 | Driving device for three-axis bogie and three-axis bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120016985.2U CN214450922U (en) | 2021-01-05 | 2021-01-05 | Driving device for three-axis bogie and three-axis bogie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214450922U true CN214450922U (en) | 2021-10-22 |
Family
ID=78110901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120016985.2U Active CN214450922U (en) | 2021-01-05 | 2021-01-05 | Driving device for three-axis bogie and three-axis bogie |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214450922U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113830112A (en) * | 2021-11-09 | 2021-12-24 | 中车株洲电力机车有限公司 | Rail vehicle driving system and bogie |
| CN115042827A (en) * | 2022-06-08 | 2022-09-13 | 中车株洲电力机车有限公司 | Diaphragm tooth type coupler and bogie with same |
-
2021
- 2021-01-05 CN CN202120016985.2U patent/CN214450922U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113830112A (en) * | 2021-11-09 | 2021-12-24 | 中车株洲电力机车有限公司 | Rail vehicle driving system and bogie |
| CN113830112B (en) * | 2021-11-09 | 2023-02-10 | 中车株洲电力机车有限公司 | Rail vehicle driving system and bogie |
| WO2023082672A1 (en) * | 2021-11-09 | 2023-05-19 | 中车株洲电力机车有限公司 | Rail vehicle driving system and bogie |
| CN115042827A (en) * | 2022-06-08 | 2022-09-13 | 中车株洲电力机车有限公司 | Diaphragm tooth type coupler and bogie with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101823493B (en) | Co bogie for high-adherence heavy-load freight locomotive | |
| WO2019128615A1 (en) | Suspended type monorail train, and bogie and driving and braking device thereof | |
| CN109677438B (en) | Suspension type monorail vehicle bogie | |
| CN101979266B (en) | Power bogie with independent wheels for 100 percent low-floor light rail vehicles | |
| CN201249778Y (en) | Double-shaft power truck for a partial low-floor light rail trolleybus | |
| CN105151069B (en) | A kind of subway engineering vehicle electric drive bogie | |
| CN108045390A (en) | The built-in bogie of broad gauge railcar axle box | |
| CN203358608U (en) | Low-power radial welding bogie | |
| CN214450921U (en) | Driving device for three-axis bogie, three-axis bogie and railway vehicle | |
| CN214450922U (en) | Driving device for three-axis bogie and three-axis bogie | |
| CN101857033B (en) | 80km/h speed class B-type subway vehicle bogie | |
| CN103786739A (en) | Low-power radial welding bogie | |
| CN101823492A (en) | Triaxial bogie for 160km/h wide-rail passenger electric express locomotive | |
| CN201538327U (en) | A-mode subway vehicle bogie | |
| CN108146461B (en) | A kind of low-floor tramcar power car bogie | |
| CN101823491A (en) | Type A metro vehicle bogie | |
| CN216994329U (en) | Three-shaft electrically-driven bogie and railway vehicle | |
| CN100372717C (en) | Suspension method and bogie for traction motor of three-axle locomotive | |
| CN104608787A (en) | Quasi-high speed broad-gauge triaxial internal combustion locomotive bogie | |
| CN112049919A (en) | Gear box and driving system for railway vehicle and railway vehicle | |
| CN201559666U (en) | Co bogie of high-adhesiveness heavy-load freight locomotive | |
| CN105416332B (en) | Hollow axle bridge structure and lightweight wheel pair | |
| CN111231996B (en) | Driving device, bogie and locomotive | |
| CN201619580U (en) | 160 km/h broad-gauge high-speed three-axle bogie for passenger electric locomotive | |
| CN212195456U (en) | Secondary bogie of railway vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |