CN112709803A - Rail vehicle gear box lubricating structure and rail vehicle gear transmission device - Google Patents
Rail vehicle gear box lubricating structure and rail vehicle gear transmission device Download PDFInfo
- Publication number
- CN112709803A CN112709803A CN202110002666.0A CN202110002666A CN112709803A CN 112709803 A CN112709803 A CN 112709803A CN 202110002666 A CN202110002666 A CN 202110002666A CN 112709803 A CN112709803 A CN 112709803A
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- gear
- oil
- shaft
- gear box
- storage tank
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 48
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 21
- 239000003921 oil Substances 0.000 claims abstract description 71
- 239000010687 lubricating oil Substances 0.000 claims abstract description 53
- 244000309464 bull Species 0.000 claims abstract description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 5
- 238000005461 lubrication Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
- F16H57/0452—Oil pans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/042—Guidance of lubricant
- F16H57/0421—Guidance of lubricant on or within the casing, e.g. shields or baffles for collecting lubricant, tubes, pipes, grooves, channels or the like
- F16H57/0423—Lubricant guiding means mounted or supported on the casing, e.g. shields or baffles for collecting lubricant, tubes or pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
- F16H57/0436—Pumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61C—LOCOMOTIVES; MOTOR RAILCARS
- B61C9/00—Locomotives or motor railcars characterised by the type of transmission system used; Transmission systems specially adapted for locomotives or motor railcars
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a lubricating structure of a gear box of a railway vehicle and a gear transmission device of the railway vehicle, wherein the lubricating structure comprises an oil storage groove body fixed in a small gear box and a lubricating oil pump fixed in a large gear box, and the lubricating oil pump is in transmission connection with a large gear through a transmission mechanism; the oil storage groove body is arranged above the pinion shaft, and is provided with an oil hole which is used for communicating the oil storage groove body with a lubricating oil channel on the pinion bearing; the bottom wall of the gear box is sunken downwards to form a second oil storage tank, an oil baffle plate is arranged in the second oil storage tank, and the oil baffle plate divides the second oil storage tank into a first area below the large gear and a second area below the small gear box; the lower end of the bull gear extends into the first area, the oil suction pipe of the lubricating oil pump extends into the second area, and the oil discharge pipe of the lubricating oil pump extends into the first oil storage tank. The lubricating structure does not need to arrange a lubricating oil channel on each part or a complex lubricating pipeline, and the economical efficiency and the reliability are greatly improved.
Description
Technical Field
The invention relates to the technical field of railway vehicles, in particular to a lubricating structure of a railway vehicle gear box and a railway vehicle gear transmission device.
Background
The gear transmission device of the rail vehicle generally comprises a large gear box and a small gear box which are fixedly connected, a large gear shaft is arranged on the large gear box through a large gear bearing support, a large gear is fixed on the large gear shaft, a small gear shaft is arranged on the small gear box through a small gear bearing support, a small gear is fixed on the small gear shaft, and the large gear and the small gear are in meshing transmission.
During operation of the gear transmission, the bearings and gears must be effectively lubricated. In the field of motor vehicles, gear transmissions are often lubricated by splash lubrication. The splash lubrication gear transmission device has the advantages of simple structure, high reliability, long overhaul and maintenance period and low cost, but with the development of the rail transit vehicle technology, the splash lubrication can not meet the lubrication requirements of some locomotive vehicle gear transmission devices, for example, due to the limitation of structural design, the splashed lubricating oil can not reach the lubrication part to cause poor lubrication. If a conventional active lubrication mode is adopted, a power source, a control device and the like need to be added, so that the cost is increased, and meanwhile, the complexity of the system is increased, so that the problem of reliability reduction is caused.
201520045112.9 discloses an axle gear box for railway vehicle, 201721508416.X discloses a gear transmission device of an integrated forced lubricating oil pump for suspension type monorail vehicle, which adopts a gear mesh transmission method to drive a lubricating oil pump to work, but the lubricating mode of the lubricating oil pump and the lubricating oil pump is that a lubricating channel is arranged on a part needing to be lubricated, and then the lubricating oil pump is connected with each lubricating channel through a pipeline, thus increasing the complexity of the system and leading to the reduction of the reliability of the system.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art, provide a lubricating structure of a railway vehicle gear box which has both economical efficiency and reliability, and correspondingly provide a railway vehicle gear transmission device with the lubricating structure.
In order to solve the technical problems, the invention adopts the following technical scheme:
a lubricating structure of a gear box of a railway vehicle comprises an oil storage groove body fixed in a small gear box and a lubricating oil pump fixed in a large gear box, wherein the lubricating oil pump is in transmission connection with a large gear through a transmission mechanism; the oil storage groove body is arranged above the pinion shaft and provided with a first oil storage groove, an oil hole is formed in the oil storage groove body and is used for communicating the first oil storage groove with a lubricating oil channel on the pinion bearing; the bottom wall of the gear box is downwards sunken to form a second oil storage tank, an oil baffle plate is arranged in the second oil storage tank, and the oil baffle plate divides the second oil storage tank into a first area below the large gear and a second area below the small gear box; the lower end of the bull gear extends into the first area, the oil suction pipe of the lubricating oil pump extends into the second area, and the oil discharge pipe of the lubricating oil pump extends into the first oil storage tank.
Therefore, when the gear transmission device works, the rotating large gear drives the lubricating oil pump to work, lubricating oil in the second area is pumped into the oil storage tank in the pinion box body, on one hand, the lubricating oil in the oil storage tank flows to the pinion bearing through the lubricating oil channel, on the other hand, the lubricating oil flows to the tooth surface of the pinion shaft through the overflow effect of the oil storage tank and the drainage effect of the oil baffle plate, and therefore active lubrication of the pinion shaft and the pinion bearing is achieved. The lubricating oil in the first area is stirred and brought into the large gear shaft and the large gear bearing in the rotation process of the large gear, so that the active lubrication of the large gear shaft and the large gear bearing is realized. The lubricating structure and the lubricating mode are simple and economical, and the reliability is high.
As a further improvement of the above technical solution:
the transmission mechanism comprises a driven fluted disc and a small fluted disc in meshing transmission with the driven fluted disc, the driven fluted disc is fixed on the large gear and coaxially arranged with the large gear, and the small fluted disc is fixed on an output shaft of the lubricating oil pump and coaxially arranged with the output shaft. Through driven fluted disc and pinion disc, utilize the rotation drive lubricating oil pump work of gear wheel, carry out the initiative lubrication to pinion shaft and pinion bearing, under the condition that does not need additionally to increase power supply and controlling means, improved gear box transmission's lubricated condition.
The lubricating oil pump is fixed on the inner wall of the large gear box through a mounting plate.
As a general inventive concept, the present invention also provides a rail vehicle gear transmission, including a gear box, wherein the middle part of the upper end of the gear box is recessed downwards to divide the gear box into a large gear box and a small gear box, a large gear shaft is installed in the large gear box, a large gear is fixed on the large gear shaft, a small gear shaft is installed in the small gear box, a small gear is fixed on the small gear shaft, and the large gear and the small gear are in transmission connection; the railway vehicle gearbox lubricating structure is further included.
As a further improvement of the above technical solution:
an intermediate wheel shaft is further installed in the gear box, and an intermediate wheel in meshing transmission with the large gear and the small gear is installed on the intermediate wheel shaft. The requirement of larger center distance can be realized by increasing the intermediate wheel, and the center distance has larger adjustable range, so that the design of the driving system of the locomotive bogie is more flexible.
The intermediate wheel shaft is fixed on the large gear box through a shaft seat and an end cover, and the intermediate wheel is rotationally connected with the intermediate wheel shaft. Therefore, the intermediate wheel bearing does not need to penetrate through the large gear box body, so that the diameters of the shaft seat and the end cover can be reduced, and the structural design of the gear transmission device is facilitated
The intermediate wheel is arranged on the intermediate wheel shaft through an intermediate wheel bearing, the outer ring of the intermediate wheel bearing is fixedly connected with the intermediate wheel, and the inner ring of the intermediate wheel bearing is in clearance fit or interference fit with the intermediate wheel shaft.
The large gear shaft is supported on the large gear box through a large gear bearing and a bearing seat.
The large gear shaft is a hollow hub.
The pinion shaft is supported on the pinion housing by a pinion bearing.
Compared with the prior art, the invention has the advantages that:
according to the lubricating structure of the gear box of the railway vehicle, the gear box is skillfully used as a lubricating oil storage tank, the oil storage tank is arranged above the pinion shaft, lubricating oil in the oil storage tank at the bottom is conveyed to the oil storage tank above through a lubricating oil pump in transmission connection with a gear transmission device, the lubricating oil in the oil storage tank above can realize the lubrication of the pinion shaft through the overflow action, and the lubricating oil in the oil storage tank can reach the pinion bearing through the gravity action; the large gear can bring lubricating oil into a large gear shaft, a large gear bearing and the wall of the gear box through rotation, so that lubricating oil channels do not need to be arranged on all parts, complex lubricating pipelines do not need to be arranged, and the economical efficiency and the reliability are greatly improved.
Drawings
FIG. 1 is a front view of a rail vehicle gear assembly of the present invention.
Fig. 2 is a sectional view a-a of fig. 1.
Fig. 3 is a sectional view B-B of fig. 2.
Fig. 4 is a partial sectional view of C-C of fig. 3.
Fig. 5 is a partial enlarged view at I in fig. 3.
Illustration of the drawings: 1. a pinion housing; 2. a large gear box; 4. a pinion shaft; 5. a pinion bearing; 6. a shaft seat; 7. an end cap; 8. a medium wheel shaft; 9. a idler wheel bearing; 10. an intermediate wheel; 11. a bull gear; 12. a bearing seat; 13. a bull gear bearing; 14. A large gear shaft; 15. a driven fluted disc; 16. a small fluted disc; 17. a lubricating oil pump; 18. mounting a plate; 17-1, an oil suction pipe; 17-2, an oil discharge pipe; 1-3, an oil baffle plate; 1-1, an oil storage tank body; 1-2 parts of oil hole.
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 (b):
referring to fig. 1 to 5, the active lubrication gear transmission for a locomotive mainly includes the following components: the lubricating device comprises a pinion box body 1, a bull gear box body 2, a box bottom cover 3, a pinion shaft 4, a pinion bearing 5, a shaft seat 6, an end cover 7, an idle wheel shaft 8, an idle wheel bearing 9, an idle wheel 10, a bull gear 11, a bearing seat 12, a bull gear bearing 13, a hollow shaft hub 14, a driven fluted disc 15, a small fluted disc 16, a lubricating oil pump 17, a mounting plate 18 and lubricating oil 19.
The box closing surface between the pinion box body 1 and the bull gear box body 2 is an inclined surface arranged between the pinion shaft 4 and the intermediate wheel shaft 8, and the box closing surface between the bull gear box body 2 and the box bottom cover 3 is arranged at a lubricating oil 19 storage part at the bottom of the gear transmission device.
The pinion shaft 4 is supported in the pinion housing 1 by a pinion bearing 5; the idle wheel 10 is supported on the idle wheel shaft 8 through an idle wheel bearing (9), the outer ring of the idle wheel bearing 9 is in interference fit with the idle wheel 10, the inner ring of the idle wheel bearing 9 is in clearance or transition fit with the idle wheel shaft 8, the idle wheel shaft 8 is fixed on the large gear box body 2 through the shaft seat 6 and the end cover 7, when the gear transmission device runs, the outer ring of the idle wheel bearing 9 rotates together with the idle wheel 10, and the inner ring of the idle wheel bearing 9 and the idle wheel shaft 8 are stationary; the big gear 11 is fixedly connected with the hollow shaft hub 14, and the hollow shaft hub 14 is supported on the big gear box body 2 through the big gear bearing 13 and the bearing seat 12. The pinion shaft 4 is in meshing transmission with the intermediate wheel 10, and the intermediate wheel 10 is in meshing transmission with the large gear 11.
The driven fluted disc 15 is concentrically arranged on the big gear 11, the small fluted disc 16 is arranged on an input shaft of the lubricating oil pump 17, the lubricating oil pump 17 is fixedly arranged in the big gear box body 2 through the mounting plate 18, and the driven fluted disc 15 and the small fluted disc 16 are in meshing transmission. An oil separation plate 3-1 is designed in the bottom cover 3, the oil separation plate 3-1 divides an oil storage pool at the bottom of the gear transmission device into two parts, one part is an oil stirring area below the large gear 11, and the other part is an oil non-stirring area. An oil storage tank 1-1 and a lubricating oil channel 1-2 reaching the pinion bearing 5 are designed in the pinion box body 1, and the bottom of the oil storage tank 1-1 is communicated with the lubricating oil channel 1-2. An oil suction pipe 17-1 of the lubricating oil pump 17 is immersed in the lubricating oil 19 of the "non-stirring area", and an oil discharge pipe 17-2 is connected to the oil reservoir 1-1.
When the gear transmission device works, the large gear 11 rotates, the lubricating oil pump 17 is driven to work through the driven fluted disc 15 and the small fluted disc 16, lubricating oil 19 in a non-oil stirring area is pumped into the oil storage tank 1-1, the lubricating oil 19 in the oil storage tank 1-1 flows to the pinion bearing 5 through the lubricating oil channel 1-2 on one hand, overflows to the tooth surface of the pinion shaft 4 from two sides on the other hand, and partially flows to the tooth surface of the intermediate wheel 10 through the drainage action of the oil baffle plate 1-3, so that the active lubrication of the pinion shaft 4 and the pinion bearing 5 is realized.
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 lubricating structure of a gear box of a railway vehicle is characterized by comprising an oil storage tank body (1-1) fixed in a small gear box (1) and a lubricating oil pump (17) fixed in a large gear box (2), wherein the lubricating oil pump (17) is in transmission connection with a large gear (11) through a transmission mechanism; the oil storage tank body (1-1) is arranged above the pinion shaft (4), the oil storage tank body (1-1) is provided with a first oil storage tank, an oil hole (1-2) is formed in the oil storage tank body (1-1), and the oil hole (1-2) is used for communicating the first oil storage tank with a lubricating oil channel on the pinion bearing (5); the bottom wall of the gear box is downwards sunken to form a second oil storage tank, an oil baffle plate (1-3) is arranged in the second oil storage tank, and the oil baffle plate (1-3) divides the second oil storage tank into a first area below the large gear (11) and a second area below the small gear box (1); the lower end of the bull gear (11) extends into the first area, an oil suction pipe (17-1) of the lubricating oil pump (17) extends into the second area, and an oil discharge pipe (17-2) of the lubricating oil pump (17) extends into the first oil storage tank.
2. The rail vehicle gearbox lubricating structure according to claim 1, wherein the transmission mechanism comprises a driven fluted disc (15) and a small fluted disc (16) in meshing transmission with the driven fluted disc (15), the driven fluted disc (15) is fixed on the large gear (11) and is coaxially arranged with the large gear (11), and the small fluted disc (16) is fixed on an output shaft of the lubricating oil pump (17) and is coaxially arranged with the output shaft.
3. Railway vehicle gearbox lubrication arrangement according to claim 1 or 2, characterised in that the oil pump (17) is fixed to the inner wall of the large gearbox (2) by means of a mounting plate (18).
4. A rail vehicle gear transmission device comprises a gear box, wherein the middle part of the upper end of the gear box is downwards sunken so as to divide the gear box into a large gear box (2) and a small gear box (1), a large gear shaft (14) is mounted in the large gear box (2) in a supporting mode, a large gear (11) is fixed on the large gear shaft (14), a small gear shaft (4) is mounted in the small gear box (1) in a supporting mode, a small gear is fixed on the small gear shaft (4), and the large gear (11) is in transmission connection with the small gear; -a railway vehicle gearbox lubrication structure according to any of claims 1 to 3.
5. A rail vehicle gear transmission according to claim 4, characterized in that an idler shaft (8) is further mounted in the gear box, and an idler (10) which is in meshing transmission with both the bull gear (11) and the pinion is mounted on the idler shaft (8).
6. A rail vehicle gear transmission according to claim 5, characterised in that the idler shaft (8) is fixed to the large gearbox (2) by means of a shaft seat (6) and an end cap (7), the idler (10) being rotatably connected to the idler shaft (8).
7. The rail vehicle gear transmission device according to claim 6, wherein the idler (10) is mounted on the idler shaft (8) through an idler bearing (9), an outer ring of the idler bearing (9) is fixedly connected with the idler (10), and an inner ring of the idler bearing (9) is in clearance or interference fit with the idler shaft (8).
8. A rail vehicle gear transmission according to any of the claims 4-7, characterized in that the gearwheel shaft (14) is supported on the gearwheel box (2) by means of a gearwheel bearing (13) and a bearing block (12).
9. Rail vehicle gear transmission according to any of claims 4 to 7, characterized in that the pinion shaft (14) is a hollow hub.
10. Rail vehicle gear transmission according to any of claims 4-7, characterized in that the pinion shaft (4) is supported on the pinion housing (1) by means of a pinion bearing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110002666.0A CN112709803A (en) | 2021-01-04 | 2021-01-04 | Rail vehicle gear box lubricating structure and rail vehicle gear transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110002666.0A CN112709803A (en) | 2021-01-04 | 2021-01-04 | Rail vehicle gear box lubricating structure and rail vehicle gear transmission device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112709803A true CN112709803A (en) | 2021-04-27 |
Family
ID=75548186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110002666.0A Pending CN112709803A (en) | 2021-01-04 | 2021-01-04 | Rail vehicle gear box lubricating structure and rail vehicle gear transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112709803A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370494A (en) * | 2022-01-17 | 2022-04-19 | 上海电气集团股份有限公司 | Automobile reduction gearbox and automobile |
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413578A (en) * | 2008-11-04 | 2009-04-22 | 常州市瑞泰工程机械有限公司 | Combined lubrication gear box |
| CN103195912A (en) * | 2013-04-12 | 2013-07-10 | 南京高速齿轮制造有限公司 | Gear box of rail transit vehicle |
| EP3203120A1 (en) * | 2016-02-03 | 2017-08-09 | Toyota Jidosha Kabushiki Kaisha | Lubricating device of power transmission device for vehicle |
| EP3534042A1 (en) * | 2018-02-09 | 2019-09-04 | Toyota Jidosha Kabushiki Kaisha | Vehicle drive device |
| CN110886833A (en) * | 2019-11-08 | 2020-03-17 | 中车青岛四方机车车辆股份有限公司 | Traction gear box and rail vehicle |
| CN211574160U (en) * | 2020-04-27 | 2020-09-25 | 常州市武进第二齿轮有限公司 | Gear transmission mechanism for internal combustion engine |
-
2021
- 2021-01-04 CN CN202110002666.0A patent/CN112709803A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413578A (en) * | 2008-11-04 | 2009-04-22 | 常州市瑞泰工程机械有限公司 | Combined lubrication gear box |
| CN103195912A (en) * | 2013-04-12 | 2013-07-10 | 南京高速齿轮制造有限公司 | Gear box of rail transit vehicle |
| EP3203120A1 (en) * | 2016-02-03 | 2017-08-09 | Toyota Jidosha Kabushiki Kaisha | Lubricating device of power transmission device for vehicle |
| EP3534042A1 (en) * | 2018-02-09 | 2019-09-04 | Toyota Jidosha Kabushiki Kaisha | Vehicle drive device |
| CN110886833A (en) * | 2019-11-08 | 2020-03-17 | 中车青岛四方机车车辆股份有限公司 | Traction gear box and rail vehicle |
| CN211574160U (en) * | 2020-04-27 | 2020-09-25 | 常州市武进第二齿轮有限公司 | Gear transmission mechanism for internal combustion engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114370494A (en) * | 2022-01-17 | 2022-04-19 | 上海电气集团股份有限公司 | Automobile reduction gearbox and automobile |
| CN114370494B (en) * | 2022-01-17 | 2024-05-31 | 上海电气集团股份有限公司 | Automobile reduction gearbox and automobile |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210427 |
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| RJ01 | Rejection of invention patent application after publication |