CN214450921U - Driving device for three-axis bogie, three-axis bogie and railway vehicle - Google Patents
Driving device for three-axis bogie, three-axis bogie and railway vehicle Download PDFInfo
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- CN214450921U CN214450921U CN202120016134.8U CN202120016134U CN214450921U CN 214450921 U CN214450921 U CN 214450921U CN 202120016134 U CN202120016134 U CN 202120016134U CN 214450921 U CN214450921 U CN 214450921U
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- motor
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- pinion
- hollow shaft
- bogie
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Abstract
The utility model discloses a drive arrangement, triaxial bogie and rail vehicle for triaxial bogie, drive arrangement includes motor, hollow shaft, cover pinion that locates on the hollow shaft and the gear wheel that meshes the transmission with the pinion, and the gear wheel is fixed in on the axletree of bogie; one end of the hollow shaft is connected with an output shaft of the motor through a diaphragm coupling structure, and the other end of the hollow shaft is connected with the pinion through a tooth type coupling structure. The driving device adopts a gear hollow shaft frame suspension driving device structure, the gear hollow shaft is matched with a tooth type and diaphragm coupling structure, the tooth type and diaphragm coupling sliding structure can meet the requirement of a three-shaft bogie on the transverse motion displacement of the driving device, and the diaphragm structure can meet the requirement of the radial motion displacement.
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 160 km 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. CN201710784210.8 patent of Low axle weight high speed motor car bogie drive device provides a solution, a six-bar hollow shaft mechanism is arranged in the middle of wheel pair, thus the wheel is vacated space and provided with a wheel disc brake. However, the method needs to enlarge the center distance between the motor and the axle, usually the gear box needs to be provided with an intermediate wheel or a secondary transmission, the center distance is large, the longitudinal size of the whole driving device is long, and the method is only suitable for Bo two-axle bogies and not suitable for Co three-axle bogies.
CN201520340682.0 discloses a hollow pinion shaft driving device and a bogie, but the hollow pinion shaft scheme adopts a double-diaphragm coupling, and the hollow pinion shaft driving device is only suitable for a two-shaft bogie and is not suitable for a three-shaft bogie due to limited transverse displacement capacity. For a Co three-axle bogie, a big problem is that the intermediate shaft drive needs a large lateral displacement, which can be accommodated by the traditional six-link hollow shaft rubber joint, but the size is not suitable for small wheels passing through the three-axle bogie. It is also a difficult problem to find a coupling meeting the requirement of lateral displacement and a mounting and matching mode.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's not enough, provide a gear hollow axle frame suspension drive device suitable for high-speed small-wheel footpath triaxial bogie, and have this drive arrangement's triaxial bogie and rail vehicle, satisfy high-speed triaxial bogie to its power, traction force, lateral displacement's requirement.
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 axle, a pinion sleeved on the hollow axle and a bull gear in meshing transmission with the pinion, wherein the bull gear is fixed on an axle of the bogie; one end of the hollow shaft is connected with an output shaft of the motor through a diaphragm coupling structure, and the other end of the hollow shaft is connected with the pinion through a tooth type coupling structure.
The high-speed small-wheel-diameter three-axle bogie has potential application prospect, is limited by the mutual restriction of factors in various aspects such as axle weight, wheel diameter, power, traction force, transverse displacement and the like, and lacks a driving device adaptive to the bogie. The driving device adopts a gear hollow shaft frame suspension driving device structure, the gear hollow shaft is matched with a tooth type and diaphragm coupling structure, the tooth type and diaphragm coupling sliding structure can meet the requirement of a three-shaft bogie on the transverse motion displacement of the driving device, and the diaphragm structure can meet the requirement of the radial motion displacement.
As a further improvement of the above technical solution:
the diaphragm coupling structure comprises a connecting disc sleeved on the output shaft of the motor and a diaphragm coupling arranged between the connecting disc and the hollow shaft, wherein a first extending part extending outwards is arranged at one end, facing the hollow shaft, of the outer circumferential surface of the connecting disc, and the first extending part is connected with the diaphragm coupling; one end of the outer circumferential surface of the hollow shaft facing the connecting disc is provided with a second extending part extending outwards, and the second extending part is connected with the diaphragm coupling; the first extension part and the second extension part are arranged on two sides of the central axis of the hollow shaft.
The gear coupling structure comprises an inner gear sleeve fixed at the end part of the axle and an outer gear sleeve sleeved on the inner gear sleeve, first teeth extending along the axial direction of the hollow shaft are arranged on the outer circumference of the inner gear sleeve, second teeth meshed with the first teeth are arranged on the inner circumference of the outer gear sleeve, and one end, facing the pinion, of the outer gear sleeve is connected with the pinion through a fastener.
Be equipped with end tooth structure between outer tooth cover and the pinion, end tooth structure is including locating the third tooth on the one end terminal surface of outer tooth cover orientation pinion to and locate the pinion fourth tooth on the one end terminal surface of outer tooth cover, fourth tooth and third tooth meshing.
As a general inventive concept, the present invention further provides a three-axle bogie, which includes a frame, a wheel set mounted on the frame, and the driving device for the three-axle bogie, wherein the hollow axle and the axle are both connected to a gear box, the gear wheel and the pinion are both disposed in the gear box, and the gear box and the motor are both mounted on the frame.
As a further improvement of the above technical solution:
the motor hanging structure is characterized in that a motor hanging beam is arranged at one end of the motor, a motor hanging structure is arranged on the motor hanging beam, a motor mounting structure is arranged at the other end of the motor, and the motor is connected with the framework through the motor mounting structure and the motor hanging structure.
And a motor anti-falling structure is arranged between the framework and the motor.
The gear box is connected with the motor through a gear box mounting structure.
And a gear box anti-falling structure is arranged between the gear box and the framework.
The motor is hung on the framework by adopting a three-point suspension structure, and the gear box is hung on the framework by adopting a hanger rod structure. The structure is simple and the maintenance is convenient.
As a general inventive concept, the present invention further provides a rail vehicle, including a rail vehicle body, further including the above three-axle bogie, wherein the frame is connected to the rail vehicle through a traction seat, an upper end of the traction seat is connected to the rail vehicle, and a lower end of the traction seat is connected to the frame through a single traction rod. And a single pull rod traction structure is adopted, so that the structure is simple and the maintenance is convenient.
Compared with the prior art, the utility model has the advantages of:
1. the utility model discloses a drive arrangement for triaxial bogie adopts gear hollow axle frame to hang the drive arrangement structure, and gear hollow shaft cooperation tooth-like + diaphragm coupling structure, tooth-like + diaphragm coupling's tooth-like sliding structure can satisfy the requirement of triaxial bogie wheel to drive arrangement lateral motion displacement, and the requirement of radial motion displacement can be satisfied to the diaphragm structure to can satisfy high-speed triaxial bogie to its power, traction force, lateral displacement's requirement.
2. The utility model discloses a rail vehicle adopts single pull rod to pull the structure, its simple structure, and it is convenient to maintain.
Drawings
Fig. 1 is a front view of the high-speed small-wheel-diameter three-axle bogie of the present invention.
Fig. 2 is a top view of the high-speed small-wheel-diameter three-axle bogie of the present invention.
Fig. 3 is a top view of the hollow gear shaft suspension drive of the present invention.
Fig. 4 is a cross-sectional view of the hollow gear shaft suspension drive of the present invention.
Fig. 5 is an enlarged view of a portion a in fig. 4.
Fig. 6 is a schematic structural diagram of the motor suspension of the suspension driving device of the present invention.
Fig. 7 is a schematic structural view of the suspension of the gear box of the suspension driving device of the present invention.
Fig. 8 is a schematic structural view of the single-rod traction device of the present invention.
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. 1 and 2, the high-speed small-wheel-diameter three-axle bogie of the present embodiment includes a frame 1, a wheel set 7.4 mounted on the frame, an axle box assembly 2, an axle box drawbar 3, a traction drawbar 4, a secondary spring 5, a wheel disc brake device 6, a wheel set driving device 7, a tread sweeper 8, a traction seat 9, a primary vertical damper 10, a secondary vertical damper 11, a secondary transverse damper 12, an anti-hunting damper 13, and the like. The axle box assembly, primary and secondary suspension devices, wheel disc brake device, tread sweeper, etc. are conventional.
Referring to fig. 8, the frame 1 is connected to the rail vehicle through a traction base 9, the upper end of the traction base 9 is connected to the rail vehicle, and the lower end of the traction base 9 is connected to the frame 1 through a single traction rod 4.
As shown in fig. 3 and 4, the driving device for a three-axle bogie of the present embodiment includes a motor 7.1, a hollow axle 7.9, a pinion 7.6 sleeved on the hollow axle 7.9, and a bull gear 7.15 in meshing transmission with the pinion 7.6, wherein the bull gear 7.15 is fixed on an axle of the bogie; one end of the hollow shaft 7.9 is connected with an output shaft of the motor 7.1 through a diaphragm coupling structure 7.5, and the other end of the hollow shaft 7.9 is connected with a pinion 7.6 through a tooth coupling structure 7.8.
The hollow shaft 7.9 and the axle are connected with a gear box 7.3 in a shaft-encircling manner, the large gear 7.15 and the small gear 7.6 are arranged in the gear box 7.3, and the gear box 7.3 and the motor 7.1 are arranged on the framework 1.
Big gear 7.15, connecting disc 7.51, diaphragm coupling 7.52,
Referring to fig. 4 and 5, the diaphragm coupling structure 7.5 includes a connecting disc 7.51 sleeved on the output shaft of the motor 7.1, and a diaphragm coupling 7.52 disposed between the connecting disc 7.51 and the hollow shaft 7.9, one end of the outer circumferential surface of the connecting disc 7.51 facing the hollow shaft 7.9 is provided with a first extending portion 7.53 extending outwards, and the first extending portion 7.53 is connected with the diaphragm coupling 7.52; one end of the outer circumferential surface of the hollow shaft 7.9 facing the connecting disc 7.51 is provided with a second extending part 7.54 extending outwards, and the second extending part 7.54 is connected with the diaphragm coupling 7.52; the first extension 7.53 and the second extension 7.54 are arranged on both sides of the central axis of the hollow shaft 7.9.
With continued reference to fig. 4 and 5, the gear coupling structure 7.8 includes an inner gear sleeve 7.81 fixed to the end of the axle and an outer gear sleeve 7.82 fitted over the inner gear sleeve 7.81, the outer circumference of the inner gear sleeve 7.81 is provided with first teeth extending in the axial direction of the hollow axle 7.9, the inner circumference of the outer gear sleeve 7.82 is provided with second teeth meshing with the first teeth, and the end of the outer gear sleeve 7.82 facing the pinion 7.6 is connected to the pinion 7.6 by a fastener.
In this embodiment, an end tooth structure 7.7 is provided between the outer sleeve 7.82 and the pinion 7.6, the end tooth structure 7.7 comprising a third tooth provided on an end face of the outer sleeve 7.82 facing the pinion 7.6, and a fourth tooth provided on an end face of the pinion 7.6 facing the outer sleeve 7.82, the fourth tooth meshing with the third tooth.
Referring to fig. 3 and 6, a motor hanging beam 7.2 is arranged at one end of the motor 7.1, a motor hanging structure 7.14 is arranged on the motor hanging beam 7.2, a motor mounting structure 7.10 is arranged at the other end of the motor 7.1, and the motor 7.1 is connected with the framework 1 through the motor mounting structure 7.10 and the motor hanging structure 7.14. A motor anti-falling structure 7.11 is arranged between the framework 1 and the motor 7.1.
Referring to fig. 3 and 7, the gearbox 7.3 is connected to the motor 7.1 by means of a gearbox mounting structure 7.12. A gear box anti-falling structure 7.13 is arranged between the gear box 7.3 and the framework 1.
The torque of the motor 7.1 is transmitted to the pinion 7.6 through the diaphragm coupling structure 7.5, the coupling hollow shaft 7.9, the gear coupling structure 7.8 and the end gear structure 7.7, and then transmitted to the wheel pair 7.4 through gear engagement. The diaphragm coupling structure 7.5 can adapt to the radial displacement of the wheel pair relative to the framework, and the tooth coupling structure 7.8 can adapt to the axial displacement (more than 10 mm) of the wheel pair relative to the framework. The motor 7.1 in the drive unit is mounted on the frame by means of a motor hanger 7.14 and two motor mounting structures 7.10. One end of the gear box 7.3 is embraced on an axle of the wheel set 7.4, and the other end is hung on the framework through a gear box mounting structure 7.12. The motor 7.1 and the gearbox 7.3 are provided with anti-drop structures (7.11 and 7.13), respectively.
The traction force is transmitted from the frame 1 to the traction base 9 via the single traction link 4 and further to the vehicle body.
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 (10)
1. A driving device for a three-axle bogie is characterized by comprising a motor (7.1), a hollow shaft (7.9), a pinion (7.6) sleeved on the hollow shaft (7.9) and a bull gear (7.15) in meshing transmission with the pinion (7.6), wherein the bull gear (7.15) is fixed on an axle of the bogie; one end of the hollow shaft (7.9) is connected with an output shaft of the motor (7.1) through a diaphragm coupling structure (7.5), and the other end of the hollow shaft (7.9) is connected with the pinion (7.6) through a tooth type coupling structure (7.8).
2. The drive device for the three-axle bogie according to claim 1, wherein the diaphragm coupling structure (7.5) comprises a connecting disc (7.51) sleeved on the output shaft of the motor (7.1) and a diaphragm coupling (7.52) arranged between the connecting disc (7.51) and the hollow shaft (7.9), one end of the outer circumferential surface of the connecting disc (7.51) facing the hollow shaft (7.9) is provided with a first extension part (7.53) extending outwards, and the first extension part (7.53) is connected with the diaphragm coupling (7.52); one end, facing the connecting disc (7.51), of the outer circumferential surface of the hollow shaft (7.9) is provided with a second extending portion (7.54) extending outwards, and the second extending portion (7.54) is connected with the diaphragm coupling (7.52); the first extension part (7.53) and the second extension part (7.54) are respectively arranged on two sides of the central axis of the hollow shaft (7.9).
3. The drive arrangement for a three-axle bogie according to claim 1, characterised in that the tooth coupling arrangement (7.8) comprises an inner toothed sleeve (7.81) fixed to the axle end and an outer toothed sleeve (7.82) fitted over the inner toothed sleeve (7.81), that the outer circumference of the inner toothed sleeve (7.81) is provided with first teeth extending in the axial direction of the hollow axle (7.9), that the inner circumference of the outer toothed sleeve (7.82) is provided with second teeth engaging the first teeth, and that the end of the outer toothed sleeve (7.82) facing the pinion (7.6) is connected to the pinion (7.6) by means of a fastening element.
4. A drive arrangement for a three-axle bogie according to claim 3, characterised in that an end tooth arrangement (7.7) is provided between the outer sleeve (7.82) and the pinion (7.6), which end tooth arrangement (7.7) comprises a third tooth provided on the end face of the outer sleeve (7.82) facing the pinion (7.6) and a fourth tooth provided on the end face of the pinion (7.6) facing the outer sleeve (7.82), which fourth tooth meshes with the third tooth.
5. A three-axle bogie comprising a frame (1), wheel sets (7.4) mounted on the frame (1), characterized in that it further comprises a drive arrangement for a three-axle bogie according to any of claims 1-4, the hollow axle (7.9) and the axle are each connected to a gear box (7.3) around the axle, the gearwheel (7.15) and the pinion (7.6) are each arranged in the gear box (7.3), and the gear box (7.3) and the motor (7.1) are each mounted on the frame (1).
6. The triaxial bogie according to claim 5, characterized in that one end of the motor (7.1) is provided with a motor hanging beam (7.2), the motor hanging beam (7.2) is provided with a motor hanging structure (7.14), the other end of the motor (7.1) is provided with a motor mounting structure (7.10), and the motor (7.1) is connected with the framework (1) through the motor mounting structure (7.10) and the motor hanging structure (7.14).
7. Triaxial bogie according to claim 5, characterised in that a motor anti-disengagement structure (7.11) is provided between the frame (1) and the motor (7.1).
8. Triaxial bogie according to claim 5, characterised in that the gearbox (7.3) is connected to the motor (7.1) by means of a gearbox mounting structure (7.12).
9. Triaxial bogie according to claim 5, characterised in that a gearbox anti-slip arrangement (7.13) is provided between the gearbox (7.3) and the frame (1).
10. A rail vehicle comprising a rail vehicle body, characterized in that it further comprises a triaxial bogie according to any of claims 5-9, said frame (1) and rail vehicle being connected by a fifth wheel (9), the upper end of said fifth wheel (9) being connected to the rail vehicle, the lower end of said fifth wheel (9) being connected to the frame (1) by a single traction link (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120016134.8U CN214450921U (en) | 2021-01-05 | 2021-01-05 | Driving device for three-axis bogie, three-axis bogie and railway vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120016134.8U CN214450921U (en) | 2021-01-05 | 2021-01-05 | Driving device for three-axis bogie, three-axis bogie and railway vehicle |
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| CN214450921U true CN214450921U (en) | 2021-10-22 |
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| CN202120016134.8U Active CN214450921U (en) | 2021-01-05 | 2021-01-05 | Driving device for three-axis bogie, three-axis bogie and railway vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602298A (en) * | 2021-09-13 | 2021-11-05 | 中车戚墅堰机车车辆工艺研究所有限公司 | Traction transmission system and railway vehicle |
| 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 |
| WO2023097834A1 (en) * | 2021-12-03 | 2023-06-08 | 中车唐山机车车辆有限公司 | Compact driving device, bogie and railway vehicle |
-
2021
- 2021-01-05 CN CN202120016134.8U patent/CN214450921U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113602298A (en) * | 2021-09-13 | 2021-11-05 | 中车戚墅堰机车车辆工艺研究所有限公司 | Traction transmission system and railway vehicle |
| WO2023097834A1 (en) * | 2021-12-03 | 2023-06-08 | 中车唐山机车车辆有限公司 | Compact driving device, bogie and railway vehicle |
| 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 |
| WO2023236464A1 (en) * | 2022-06-08 | 2023-12-14 | 中车株洲电力机车有限公司 | Diaphragm gear coupling and bogie having same |
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