CN210034365U - Lubricating system suitable for meshing of planetary gears of automatic gearbox - Google Patents
Lubricating system suitable for meshing of planetary gears of automatic gearbox Download PDFInfo
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- CN210034365U CN210034365U CN201920584361.3U CN201920584361U CN210034365U CN 210034365 U CN210034365 U CN 210034365U CN 201920584361 U CN201920584361 U CN 201920584361U CN 210034365 U CN210034365 U CN 210034365U
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Abstract
The utility model discloses a lubrication system suitable for the meshing of planetary gears of an automatic gearbox, a piston cavity is formed between a piston and a clutch hub assembly, and main oil pressure enters the piston cavity through an oil guide cover through a first oil pressure hole arranged on the clutch hub assembly; a balance piston cavity is formed between the disc spring and the balance piston, and lubricating oil pressure enters the planetary gear and the sun gear through a second oil pressure hole formed in the clutch hub assembly. The utility model discloses correspond gear engagement's position with balanced piston and increase an oilhole, lubricate and dispel the heat for gear engagement point through this oilhole from balanced piston chamber with lubricating oil. The fatigue resistance of the tooth surface is improved, and the vibration and noise of gear transmission are reduced. The layout of the lubricating system is simplified, and therefore the processing difficulty and the manufacturing cost are reduced.
Description
Technical Field
The utility model is suitable for a relate to and have planetary gear derailleur field.
Background
The planetary gear mechanism is the basis of a speed change mechanism, and generally, the speed change mechanism of an automatic transmission is composed of two or more rows of planetary gear mechanisms. A plurality of planetary row structures are arranged in the AT automatic gearbox, and different forward gears and reverse gears of the gearbox are realized by different planetary row transmission combinations. When the planet row works, a large amount of heat is generated at the moment of meshing of the planet gear, the sun gear and the outer gear ring, and the service life of the gear is greatly influenced. In order to solve the problem, gearbox oil can be led to the gear mesh independently in the middle of a shell or a shaft when the gearbox is designed in the traditional mode, so that the lubricating property and the heat dissipation property of the tooth surface of the gear are improved, the gearbox is made to be more complex when a lubricating system structure is designed, and the processing difficulty and the manufacturing cost are increased.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to adopt a novel lubricating structure to increase lubricating oil for the gear meshing, prevent the damage to the gear surface caused by high temperature generated at the moment of meshing, and directly lead the lubricating oil to the gear meshing part from a balance piston to play the roles of heat dissipation and lubrication.
In order to achieve the purpose of the invention, the invention adopts the technical scheme that:
a lubrication system adapted for engagement with an automatic transmission planetary gear, comprising: the oil guide device comprises a clutch hub assembly 1, an oil guide cover 2, a piston 3, a disc spring 4, a balance piston 5, a planet row 7, a sun gear 9 and a sun gear fixing shaft 13, wherein the balance piston 5 is connected with the clutch hub assembly 1 through a spline; the planet row 7 is connected with the balance piston 5 through a spline; the sun gear 9 is connected with the sun gear fixed shaft 13 through a spline, a piston cavity 14 is formed between the piston 3 and the clutch hub assembly 1, and main oil pressure enters the piston cavity 14 through the oil guide cover 2 through a first oil pressure hole 16 arranged on the clutch hub assembly 1; and a balance piston cavity 15 is formed between the disc spring 4 and the balance piston 5, and lubricating oil pressure enters the planetary gear 7 and the sun gear 9 through the balance piston cavity 15 through a second oil pressure hole 8 formed in the clutch hub assembly 1. The gear ring assembly 6, the first bearing 10, the second bearing 17 and the friction plate assembly 12.
The composition relation of the mechanism is as follows: an oil guide cover is arranged in a shaft of the clutch hub assembly 1, and a piston 3, a disc spring 4, a balance piston 5, a planet row 7, a gear ring assembly 6, a sun gear 9 and a sun gear fixing shaft 13 are sequentially arranged in the clutch hub assembly 1. The sun wheel is pressed by the sun wheel fixing shaft 13 against the planet carrier of the planet row 7, and due to the relative movement, a first bearing 10 is arranged between the sun wheel and the planet carrier of the planet row 7. The balance piston 5 presses the disc spring 4 in the piston 3, and the other end of the balance piston 5 is limited on the clutch hub assembly 1 through a first snap ring 11. The ring gear moves relative to the planet carrier of the row 7 and is therefore provided with a second bearing 17. Friction plate assembly 12 is pressed against piston 3 and the other end is secured to clutch hub assembly 1 by a second snap ring 18.
Has the advantages that: the invention adds an oil hole at the position of the balance piston corresponding to the gear meshing, and lubricates and dissipates heat for the gear meshing point by lubricating oil from the balance piston cavity through the oil hole. The fatigue resistance of the tooth surface is improved, and the vibration and noise of gear transmission are reduced. The layout of the lubricating system is simplified, and therefore the processing difficulty and the manufacturing cost are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a lubrication system suitable for meshing of planetary gears of an automatic gearbox according to an embodiment of the invention.
In the figure: 1: a clutch hub assembly; 2: an oil guide cover; 3: a piston; 4: a disc spring; 5: a balance piston; 6: a gear ring assembly; 7: a planet row; 8: a second oil pressure hole; 9: a sun gear; 10: a first bearing; 11: a first snap ring; 17: (ii) a 12: a friction plate assembly; 13: a sun gear fixed shaft; 14: a piston cavity; 15: a balance piston cavity; 16: a first oil pressure hole; 17: a second bearing; 18: a second snap ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the lubricating system structure suitable for the planetary gear engagement of the automatic gearbox of the embodiment is schematically shown. The lubricating system comprises the following components: 1: a clutch hub assembly; 2: an oil guide cover; 3: a piston; 4: a disc spring; 5: a balance piston; 6: a gear ring assembly; 7: a planet row; 9: a sun gear; 10: a first bearing; 17: a second bearing; 12: a friction plate assembly; 13: the sun gear is fixed on the shaft. The balance piston 5 is connected with the clutch hub assembly 1 through a spline; the planet row 7 is connected with the balance piston 5 through a spline; the sun gear 9 is connected with the sun gear fixed shaft 13 through a spline. A piston cavity 14 is formed between the piston 3 and the clutch hub assembly 1, and main oil pressure enters the piston cavity 14 through the oil guide cover 2 through a first oil pressure hole 16 arranged on the clutch hub assembly 1; a balance piston cavity 15 is formed between the disc spring 4 and the balance piston 5, and lubricating oil pressure enters the planet row 7 and the sun gear 9 through the balance piston cavity 15 through a second oil pressure hole 8 formed in the clutch hub assembly 1. An oil guide cover is arranged in a shaft of the clutch hub assembly 1, and a piston 3, a disc spring 4, a balance piston 5, a planet row 7, a gear ring assembly 6, a sun gear 9 and a sun gear fixing shaft 13 are sequentially arranged in the clutch hub assembly 1. The sun wheel is pressed by the sun wheel fixing shaft 13 against the planet carrier of the planet row 7, and due to the relative movement, a first bearing 10 is arranged between the sun wheel and the planet carrier of the planet row 7. The balance piston 5 presses the disc spring 4 in the piston 3, and the other end of the balance piston 5 is limited on the clutch hub assembly 1 through a first snap ring 11. The ring gear moves relative to the planet carrier of the row 7 and is therefore provided with a second bearing 17. The friction plate assembly 12 is pressed on the piston 3, and the other end is fixed on the clutch hub assembly 1 through a second snap ring 18.
The working principle is as follows: the balance piston 5 is connected with the clutch hub assembly 1 through a spline; the planet row 7 is connected with the balance piston 5 through a spline; the sun gear 9 is connected with the sun gear fixed shaft 13 through a spline.
The gear ring assembly 6 is an input member, the sun gear 9 is fixed through the sun gear fixing shaft 13 at the moment, the planet row 7 drives the clutch hub assembly 1 to be used as power output, oil is filled through the piston cavity, the friction plate assembly 12 is pressed, and therefore power is transmitted. The planet gears in the planet row 7 rotate at high speed, and high temperature is generated due to the meshing among the ring gear assembly 6, the planet gears in the planet row 7 and the sun gear 9, so that the service life is influenced. And adding a second oil hole 8 to the position of the balance piston 5 corresponding to the meshing of the gears, and lubricating oil from the balance piston cavity 5 to the meshing point of the gears through the oil hole for lubricating and radiating.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they can design similar structural modes and embodiments without creative efforts without departing from the spirit of the present invention, and shall all fall within the protection scope of the present invention.
Claims (2)
1. A lubrication system adapted for engagement with an automatic transmission planetary gear, comprising: the oil guide device comprises a clutch hub assembly (1), an oil guide cover (2), a piston (3), a disc spring (4), a balance piston (5), a planet row (7), a sun gear (9) and a sun gear fixing shaft (13), wherein the balance piston (5) is connected with the clutch hub assembly (1) through a spline; the planet row (7) is connected with the balance piston (5) through a spline; the sun gear (9) is connected with the sun gear fixing shaft (13) through a spline, a piston cavity (14) is formed between the piston (3) and the clutch hub assembly (1), and main oil pressure enters the piston cavity (14) through the oil guide cover (2) through a first oil pressure hole (16) formed in the clutch hub assembly (1); dish spring (4) with form between balanced piston (5) balanced piston chamber (15), lubricated oil pressure passes through second oil pressure hole (8) that set up on clutch hub assembly (1), and the warp balanced piston chamber (15) enter into planet row (7) and sun gear (9).
2. The lubrication system for an automatic transmission planetary gear mesh according to claim 1, wherein: the gear ring assembly further comprises a gear ring assembly (6), a first bearing (10), a second bearing (17) and a friction plate assembly (12);
the oil guide cover (2) is arranged in the shaft of the clutch hub assembly (1), and the piston (3), the disc spring (4), the balance piston (5), the planet row (7), the gear ring assembly (6), the sun gear (9) and the sun gear fixing shaft (13) are sequentially arranged in the clutch hub assembly (1); the sun wheel is pressed on a planet carrier of the planet row (7) by the sun wheel fixing shaft (13), due to relative motion, the first bearing (10) is arranged between the sun wheel (9) and the planet carrier of the planet row (7), the disc spring (4) is pressed in the piston (3) by the balance piston (5), and the other end of the balance piston (5) is limited on the clutch hub assembly (1) through a first snap ring (11); the ring gear and the planet carrier of the planet row (7) move relatively, so that a second bearing (17) is arranged, the friction plate assembly (12) is pressed on the piston (3), and the other end of the friction plate assembly is fixed on the clutch hub assembly (1) through a second snap ring (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920584361.3U CN210034365U (en) | 2019-04-26 | 2019-04-26 | Lubricating system suitable for meshing of planetary gears of automatic gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920584361.3U CN210034365U (en) | 2019-04-26 | 2019-04-26 | Lubricating system suitable for meshing of planetary gears of automatic gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034365U true CN210034365U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920584361.3U Active CN210034365U (en) | 2019-04-26 | 2019-04-26 | Lubricating system suitable for meshing of planetary gears of automatic gearbox |
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|---|---|
| CN (1) | CN210034365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958757A (en) * | 2019-04-26 | 2019-07-02 | 南京劲力传动技术有限公司 | A kind of lubricating system suitable for the engagement of automatic gear-box planetary gear |
-
2019
- 2019-04-26 CN CN201920584361.3U patent/CN210034365U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958757A (en) * | 2019-04-26 | 2019-07-02 | 南京劲力传动技术有限公司 | A kind of lubricating system suitable for the engagement of automatic gear-box planetary gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200907 Address after: 211100 111 Jiangning Road, Nanjing, Jiangsu province (Jiangning Development Zone) Patentee after: Nanjing Jinli Transmission Technology Co.,Ltd. Address before: 211300 No. 69 Gutan Avenue, Gaochun Economic Development Zone, Nanjing City, Jiangsu Province Patentee before: NANJING JINLI TRANSMISSION TECHNOLOGY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221102 Address after: 276800 West of Floor 1-2, Building 11, New Generation Information Technology Industrial Park, Gaoxin 7th Road, Rizhao Hi tech Zone, Shandong Province Patentee after: Rizhao Jinli Transmission Co.,Ltd. Address before: No. 111, middle mozhou Road, Jiangning District, Nanjing City, Jiangsu Province (Jiangning Development Zone) Patentee before: Nanjing Jinli Transmission Technology Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A lubrication system suitable for planetary gear meshing in automatic transmissions Effective date of registration: 20230424 Granted publication date: 20200207 Pledgee: Rizhao Bank Co.,Ltd. Rizhao High tech Sub branch Pledgor: Rizhao Jinli Transmission Co.,Ltd. Registration number: Y2023980038985 |