CN110630730B - Gear device for railway vehicle - Google Patents
Gear device for railway vehicle Download PDFInfo
- Publication number
- CN110630730B CN110630730B CN201910449460.5A CN201910449460A CN110630730B CN 110630730 B CN110630730 B CN 110630730B CN 201910449460 A CN201910449460 A CN 201910449460A CN 110630730 B CN110630730 B CN 110630730B
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- CN
- China
- Prior art keywords
- gear
- oil
- oil reservoir
- oil storage
- partition wall
- 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.)
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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
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0413—Controlled cooling or heating of lubricant; Temperature control therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
A gear device for a railway vehicle is provided in which a pinion gear and a large gear (3) are housed in a gear case (1) in a state of being meshed with each other in the horizontal direction, wherein a 1 st oil reservoir (4) in which the lower part of the large gear is immersed, a 2 nd oil reservoir positioned below the pinion gear, and a partition wall (6) that separates the 1 st oil reservoir from the 2 nd oil reservoir are provided, and the partition wall is provided with a communication hole (61) that communicates the 2 nd oil reservoir with the 1 st oil reservoir, whereby the temperature rise of lubricating oil can be sufficiently suppressed, and the frequency of replacement of lubricating oil can be reduced as much as possible. A pair of partition walls (7) are vertically arranged along the lower part of the peripheral wall of the gear box at the lower part of the peripheral surface of the large gear, the partition walls are divided into 1 st oil storage parts, 3 rd oil storage parts (8) communicated with the 2 nd oil storage parts are divided between the partition walls and the side walls at the axial sides of the gear box, and the 3 rd oil storage parts and the 1 st oil storage parts are separated into a non-communicated state by the partition walls.
Description
Technical Field
The present invention relates to a gear device for a railway vehicle, including a gear box, wherein a pinion gear coupled to an output shaft of a drive source and a large gear coupled to an axle are housed in the gear box in a state of being meshed with each other in a horizontal direction.
Background
As such a gear device for a railway vehicle, the following gear device is known up to now: a 1 st oil reservoir in which a lower portion of the large gear is immersed, a 2 nd oil reservoir located below the small gear, and a partition wall that separates the 1 st oil reservoir from the 2 nd oil reservoir are provided in the gear case, and a communication hole that communicates the 2 nd oil reservoir with the 1 st oil reservoir is formed in the partition wall (for example, refer to patent document 1).
Here, lubricating oil is stored in the gear box. The lubricant is caught by the rotation of the large gear. The lubricating oil thus collected is supplied to the respective lubrication portions such as the engagement positions of the pinion and the bull gear and the bearings, and is heated at the lubrication portions. Then, when the amount of the lubricating oil that is caught up by the rotation of the large gear increases, the temperature of the lubricating oil tends to rise, resulting in early deterioration of the lubricating oil. In the gear device of the above conventional example, only the lubricating oil in the 1 st oil reservoir is caught by the rotation of the large gear. Therefore, the amount of the lubricating oil to be scooped up can be reduced, thereby suppressing the temperature rise of the lubricating oil.
However, in the gear device of the conventional example, the 1 st oil reservoir portion extends across the entire width between the side walls on both sides in the axial direction of the gear case. Therefore, the volume of the 1 st reservoir portion cannot be sufficiently reduced. As a result, the amount of lubricating oil that has been scooped up from the 1 st oil reservoir portion due to the rotation of the large gear cannot be sufficiently reduced, and the temperature rise of the lubricating oil cannot be sufficiently suppressed.
Prior art literature
Patent literature
Patent document 1: japanese laid-open patent publication No. 62-22357
Disclosure of Invention
The present invention has been made in view of the above-described problems, and an object thereof is to provide a gear device for a railway vehicle that can sufficiently suppress an increase in temperature of lubricating oil and can reduce the frequency of replacement of the lubricating oil as much as possible.
In order to solve the above-described problems, a gear device for a railway vehicle according to the present invention includes a gear box in which a pinion gear coupled to an output shaft of a drive source and a large gear coupled to an axle are housed in a state of being meshed with each other in a horizontal direction, and the gear box is provided with: the gear box is characterized in that a pair of partition walls are vertically arranged at the lower part of the peripheral wall of the gear box along the lower part of the peripheral surface of the gear wheel, the 1 st oil storage part is divided by the two partition walls, the 3 rd oil storage part communicated with the 2 nd oil storage part is divided by the side walls of each partition wall and each side of the gear box in the axial direction, and the 3 rd oil storage part and the 1 st oil storage part are separated into a non-communicated state by each partition wall.
According to the present invention, the width of the 1 st oil reservoir portion is reduced from the width between the side walls on both sides in the axial direction of the gear case to the width between the pair of partition walls located on the inner side than the side walls. Therefore, the volume of the 1 st reservoir portion can be reduced as much as possible. As a result, the amount of lubricating oil that has been trapped from the 1 st oil reservoir due to rotation of the large gear can be reduced as much as possible, and the temperature rise of the lubricating oil can be sufficiently suppressed. Further, the total amount of the lubricating oil stored in the portion other than the 1 st oil reservoir portion can be increased by an amount corresponding to the 3 rd oil reservoir portion partitioned outside each partition wall. Therefore, the frequency of replacement of the lubricating oil can be reduced as much as possible in combination with the suppression of the temperature increase of the lubricating oil.
Drawings
Fig. 1 is a cross-sectional view of a gear device for a railway vehicle according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1.
Fig. 3 is a cross-sectional view taken along line iii-iii of fig. 1.
Symbol description
1 … gear box, 21 … output shaft, 2 … pinion, 31 … axle, 3 … gear, 4 … 1 st oil storage part, 5 … nd 2 nd oil storage part, 6 … partition wall, 61 … communication hole, 7 … partition wall, 8 … rd 3 rd oil storage part
Detailed Description
Referring to fig. 1, a gear device for a railway vehicle according to an embodiment of the present invention includes a gear case 1. The pinion 2 coupled to the output shaft 21 of a drive source, not shown, and the bull gear 3 coupled to the axle 31 are housed in the gear case 1 in a state of meshing with each other in the horizontal direction. Referring to fig. 2 and 3, the output shaft 21 and the axle 31 are supported by the gear case 1 via bearings 22 and 32, respectively. A cover 11 is attached to an opening in the upper surface of the gear case 1 so as to cover the upper portions of the pinion 2 and the bull gear 3.
In addition, the gear case 1 is provided with: a 1 st oil reservoir 4 in which the lower portion of the large gear 3 is immersed, a 2 nd oil reservoir 5 located below the small gear 2, and a partition wall 6 that separates the 1 st oil reservoir 4 from the 2 nd oil reservoir 5. The partition wall 6 is formed with a communication hole 61 for communicating the 2 nd reservoir 5 with the 1 st reservoir 4.
A pair of partition walls 7, 7 located on both outer sides in the axial direction of the large gear 3 are erected at the lower part of the peripheral wall of the gear case 1 along the lower part of the peripheral surface of the large gear 3. The 1 st oil reservoir 4 is partitioned between the two partition walls 7, and the 3 rd oil reservoir 8 communicating with the 2 nd oil reservoir 5 is partitioned between each partition wall 7 and the side wall on each side in the axial direction of the gear case 1. The 3 rd oil reservoir 8 and the 1 st oil reservoir 4 are separated by the partition walls 7 so as not to communicate with each other. In the embodiment, communication holes 62, 62 for communicating the 3 rd oil reservoir 8 with the 2 nd oil reservoir 5 are formed in the partition wall 6 extending across the entire width between the side walls on both sides in the axial direction of the gear case 1. The 3 rd oil reservoir 8 may be communicated with the 2 nd oil reservoir 5 by providing no partition wall between the partition walls 7 and the side walls on both sides in the axial direction of the gear case 1.
An opening is formed in the lower surface of the peripheral wall that is the bottom surface of the 1 st oil reservoir 4 of the gear case 1. A plug 12 is mounted in the opening. The drain bolt 12a is detachably screwed to the plug body 12, so that the lubricant in the gear case 1 can be discharged to the outside. In addition, bearing boxes 13 are mounted to openings in the side walls on both sides in the axial direction of the gear case 1, and the bearing boxes 13 are fitted to the bearings 22 and 32 in an interference fit state.
Here, the gear box 1 stores lubricating oil therein. The lubricant is caught by the rotation of the large gear 3. The lubricating oil thus collected is supplied to the meshing portion between the pinion gear 2 and the bull gear 3 and to the lubricating portions such as the bearings 22 and 32, and is heated at the lubricating portions. Then, when the amount of the lubricating oil that is caught up by the rotation of the large gear 3 increases, the temperature of the lubricating oil easily increases, resulting in early deterioration of the lubricating oil. According to the present embodiment, the width of the 1 st oil reservoir 4 is reduced from the width between the side walls on both sides in the axial direction of the gear case 1 to the width between the pair of partition walls 7, and the pair of partition walls 7, 7 are located further inside than the side walls. Therefore, the volume of the 1 st reservoir 4 can be reduced as much as possible. As a result, the amount of lubricating oil that has been trapped from the 1 st oil reservoir 4 due to rotation of the large gear 3 can be reduced as much as possible, and the temperature rise of the lubricating oil can be sufficiently suppressed. Further, the total amount of the lubricating oil stored in the portion other than the 1 st oil reservoir 4 can be increased by the amount corresponding to the 3 rd oil reservoir 8 partitioned outside the respective partition walls 7. Therefore, the frequency of replacement of the lubricating oil can be reduced as much as possible in combination with the suppression of the temperature increase of the lubricating oil.
Claims (1)
1. A gear device for a railway vehicle is provided with: a gear case in which a pinion coupled to an output shaft of the drive source and a large gear coupled to an axle are housed in a state of being meshed with each other in a horizontal direction,
the gear box is internally provided with: a 1 st oil reservoir in which the lower portion of the large gear is immersed, a 2 nd oil reservoir located below the small gear, and a partition wall that separates the 1 st oil reservoir and the 2 nd oil reservoir, the partition wall being formed with a communication hole that communicates the 2 nd oil reservoir with the 1 st oil reservoir,
the gear device for railway vehicles is characterized in that,
a pair of partition walls are vertically provided along the lower part of the peripheral wall of the gear case at the lower part of the peripheral surface of the gear wheel, a 1 st oil storage part is partitioned between the two partition walls, a 3 rd oil storage part communicated with the 2 nd oil storage part is partitioned between each partition wall and the side wall at each side of the gear case in the axial direction, and the 3 rd oil storage part and the 1 st oil storage part are partitioned into a non-communicated state by each partition wall.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-119171 | 2018-06-22 | ||
| JP2018119171A JP7103864B2 (en) | 2018-06-22 | 2018-06-22 | Gear equipment for railway vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110630730A CN110630730A (en) | 2019-12-31 |
| CN110630730B true CN110630730B (en) | 2023-09-01 |
Family
ID=68968390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910449460.5A Active CN110630730B (en) | 2018-06-22 | 2019-05-28 | Gear device for railway vehicle |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7103864B2 (en) |
| CN (1) | CN110630730B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7433526B2 (en) | 2021-06-04 | 2024-02-19 | 三菱電機株式会社 | Gear device, bearing removal device, and bearing removal method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674551U (en) * | 1993-03-30 | 1994-10-21 | 住友金属工業株式会社 | Gearbox for railway vehicles |
| JP2009180371A (en) * | 2008-02-01 | 2009-08-13 | Sumitomo Metal Ind Ltd | Gear device for rail vehicle |
| JP2010139002A (en) * | 2008-12-11 | 2010-06-24 | Sumitomo Metal Ind Ltd | Gear device for rail vehicle |
| CN107031543A (en) * | 2016-02-03 | 2017-08-11 | 丰田自动车株式会社 | Lubricating arrangement for the power transmission of vehicle |
| CN107725744A (en) * | 2016-08-12 | 2018-02-23 | 丰田自动车株式会社 | The lubricating arrangement of vehicle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5443241Y2 (en) * | 1974-04-18 | 1979-12-14 |
-
2018
- 2018-06-22 JP JP2018119171A patent/JP7103864B2/en active Active
-
2019
- 2019-05-28 CN CN201910449460.5A patent/CN110630730B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0674551U (en) * | 1993-03-30 | 1994-10-21 | 住友金属工業株式会社 | Gearbox for railway vehicles |
| JP2009180371A (en) * | 2008-02-01 | 2009-08-13 | Sumitomo Metal Ind Ltd | Gear device for rail vehicle |
| JP2010139002A (en) * | 2008-12-11 | 2010-06-24 | Sumitomo Metal Ind Ltd | Gear device for rail vehicle |
| CN107031543A (en) * | 2016-02-03 | 2017-08-11 | 丰田自动车株式会社 | Lubricating arrangement for the power transmission of vehicle |
| CN107725744A (en) * | 2016-08-12 | 2018-02-23 | 丰田自动车株式会社 | The lubricating arrangement of vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019219051A (en) | 2019-12-26 |
| JP7103864B2 (en) | 2022-07-20 |
| CN110630730A (en) | 2019-12-31 |
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