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KR101795170B1 - Output shaft of automatic transmission with function of storing oil and automatic transmission having the same - Google Patents

Output shaft of automatic transmission with function of storing oil and automatic transmission having the same Download PDF

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Publication number
KR101795170B1
KR101795170B1 KR1020150167346A KR20150167346A KR101795170B1 KR 101795170 B1 KR101795170 B1 KR 101795170B1 KR 1020150167346 A KR1020150167346 A KR 1020150167346A KR 20150167346 A KR20150167346 A KR 20150167346A KR 101795170 B1 KR101795170 B1 KR 101795170B1
Authority
KR
South Korea
Prior art keywords
output shaft
automatic transmission
oil
oil receiving
receiving groove
Prior art date
Application number
KR1020150167346A
Other languages
Korean (ko)
Other versions
KR20170062025A (en
Inventor
최운영
최인혁
Original Assignee
현대 파워텍 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 현대 파워텍 주식회사 filed Critical 현대 파워텍 주식회사
Priority to KR1020150167346A priority Critical patent/KR101795170B1/en
Publication of KR20170062025A publication Critical patent/KR20170062025A/en
Application granted granted Critical
Publication of KR101795170B1 publication Critical patent/KR101795170B1/en

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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
    • F16H57/048—Type of gearings to be lubricated, cooled or heated
    • F16H57/0482—Gearings with gears having orbital motion
    • F16H57/0483—Axle or inter-axle differentials
    • 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
    • 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
    • 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
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0469—Bearings or seals
    • F16H57/0471—Bearing

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)

Abstract

The present invention relates to an output shaft of an automatic transmission and an automatic transmission including the same, which has an oil storage function that enables a lubricant to be smoothly lubricated from the beginning of rotation even after rotation after securing a space for securing oil.
An output shaft of an automatic transmission having an oil storage function according to the present invention includes an output shaft of an automatic transmission that is installed inside an automatic transmission 1 and outputs a rotational force shifted by the automatic transmission 1 to a differential gear 22, An oil receiving groove 121a is formed at a predetermined depth from the surface of the output shaft 121 so that oil is stored on one side of the output shaft 121. [

Description

TECHNICAL FIELD [0001] The present invention relates to an output shaft of an automatic transmission having an oil storage function, and an automatic transmission including the same. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an output shaft for transmitting torque transmitted from a vehicle automatic transmission to a differential gear. More particularly, the present invention relates to an output shaft for securing a space for storing oil, To an output shaft of an automatic transmission having an oil storage function and an automatic transmission including the same.

The automatic transmission is provided with an input shaft 12, a torque converter 13, a gear assembly 14 and clutch assemblies 15 and 16 in a housing 11 as shown in Fig.

The rotational force inputted through the input shaft 12 is shifted and then output through the output shaft 21, which is transmitted to the differential gear shaft 22 connected to the drive wheels of the vehicle and driven by the vehicle.

The output shaft 21 is installed in the automatic transmission 1 in a state of being supported by a roller bearing 23. The automatic transmission 1 is in a state in which the automatic transmission 1 is stopped for a long time, , When the automatic transmission 1 is operated for running the vehicle in a state where the automatic transmission 1 is mounted on the vehicle for a long time in the assembly process of the vehicle, There is a problem that the oil of the automatic transmission 1 is not supplied to the portion of the transmission.

Since the lubricating operation is not performed smoothly at the beginning of the operation of the automatic transmission 1, the inside of the roller bearing 23 supporting the output shaft 21 is not lubricated and the roller bearing 23 is damaged May occur.

On the other hand, the following prior art document discloses a technique relating to a 'lubrication apparatus for an automatic transmission'.

KR 10-2003-0030464 A

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems and to provide a lubricating oil storage device capable of supplying a sufficient amount of oil to a roller bearing even when the transmission is operated for a long time, An output shaft of the automatic transmission having the function and an automatic transmission including the same.

According to an aspect of the present invention, there is provided an output shaft of an automatic transmission having an oil-storing function, the output shaft of the automatic transmission including an output shaft of an automatic transmission that is provided inside the automatic transmission and outputs a rotational force, Wherein an oil receiving groove is formed at a predetermined depth from a surface of the output shaft so that oil is stored at one side of the output shaft.

And the oil receiving groove is formed on an outer side of a portion of the output shaft where the output shaft is supported by the bearing.

And the oil receiving grooves are formed in a plurality of along the circumferential direction of the output shaft.

And the oil receiving grooves are formed at equal angular intervals.

And the oil receiving grooves are formed at the same distance from the end of the output shaft.

The oil receiving groove is formed to have the same cross sectional area according to the depth.

When the rotation of the output shaft is stopped, ATF (Automatic Transmission Flue) is stored in the oil receiving groove. When the output shaft rotates, the ATF is scattered from the oil receiving groove.

And a portion of the output shaft where the oil receiving groove is formed is spaced apart from an inner surface of the housing of the automatic transmission.

An automatic transmission including an output shaft of an automatic transmission having an oil storage function according to the present invention includes the output shaft inside the automatic transmission.

And the output shaft is supported by a tapered roller bearing installed in the automatic transmission.

According to the output shaft of the automatic transmission having the oil-storing function and the automatic transmission including the automatic transmission, the automatic transmission can be installed in the vehicle after the stock has been stored, or even after the vehicle has been parked for a long time, The oil is supplied to the inside of the roller bearing which supports the output shaft inside the housing, thereby preventing the roller bearing from being damaged due to insufficient lubrication.

1 is a sectional view showing a structure of a conventional automatic transmission;
2 is a side view showing a connection relationship of an input shaft, an output shaft, and a differential gear shaft in a conventional automatic transmission;
3 is a sectional view showing a state in which an output shaft according to a related art is installed inside an automatic transmission.
4 is a plan view of an output shaft of an automatic transmission having an oil storage function according to the present invention.
5 is a sectional view showing a state in which an output shaft of an automatic transmission having an oil storage function is installed inside an automatic transmission according to the present invention.
6 is a sectional view showing a state in which an output shaft of an automatic transmission having an oil storage function is rotated and oil is scattered according to the present invention.

Hereinafter, an output shaft of an automatic transmission having an oil storage function according to the present invention will be described in detail with reference to the accompanying drawings.

An output shaft of an automatic transmission having an oil storage function according to the present invention includes an output shaft of an automatic transmission that is installed inside an automatic transmission 1 and outputs a rotational force shifted by the automatic transmission 1 to a differential gear 22, An oil receiving groove 121a is formed at a predetermined depth from the surface of the output shaft 121 so that oil is stored at one side of the output shaft 121. [

At one side of the output shaft 121, an oil receiving groove 121a for storing oil is formed.

The oil receiving grooves 121a are formed at a predetermined depth from the surface of the output shaft 121 and are formed in the output shaft 121 in a plurality.

The oil receiving groove 121a stores the oil of the automatic transmission, that is, the ATF (Automatic Transmission Fl uid). When the output shaft 121 rotates, the oil receiving groove 121a fills do.

The oil receiving groove 121a is formed to have a constant cross sectional area from the surface of the output shaft 121. For example, if the oil receiving groove 121a has a circular section, the inlet and innermost section of the oil receiving groove 121a may be formed in a circular shape and have the same sectional area.

In the output shaft 121, the oil receiving groove 121a is arranged as follows.

The oil receiving recess 121a is formed in a plurality of the oil receiving recesses 121a and is arranged along the circumferential direction of the output shaft 121. [ Further, when disposed in the circumferential direction of the output shaft 121, the oil receiving grooves 121a are preferably disposed at the same angular interval.

Meanwhile, the oil receiving recess 121a is formed at the same distance from the end of the output shaft 121.

Therefore, the oil receiving grooves 121a are equidistant from the end of the output shaft 121 along the circumference of the output shaft 121 at equal distances.

A portion of the output shaft 121 where the oil receiving recess 121a is formed is formed outside the roller bearing 23 supporting the output shaft 121. [ In the automatic transmission 1, the output shaft 121 is supported by the roller bearing 23 at both ends thereof. The oil receiving groove 121a extends from the output shaft 121 to the roller bearing 23, As shown in Fig.

5, the oil receiving groove 121a is formed so that the output shaft 121 is in contact with the output shaft 121 so that the end of the output shaft 121 is located outside the portion supported by the roller bearing 23. [ And is formed between the bearings (23).

A portion of the output shaft 121 where the oil receiving groove 121a is formed is formed in the inner surface of the housing 11 of the automatic transmission 1 so that oil can be easily scattered from the oil receiving groove 121a. As shown in FIG.

Hereinafter, the operation of the output shaft of the automatic transmission having the oil storing function according to the present invention will be described.

The oil accommodating groove 121a of the output shaft 121 is filled with the oil of the automatic transmission. When the vehicle is running, the automatic transmission operates so that the oil circulates inside the automatic transmission 1, and at this time, a part of the oil fills the inside of the oil receiving groove 121a.

When the vehicle finishes running, the automatic transmission also stops, and the oil collects to one side.

However, the oil filled in the oil receiving groove 121a is continuously stored in the oil receiving groove 121a.

This is because when the automatic transmission 1 is stored for a long period of time in the vehicle during the production process of the vehicle as well as after long-time parking of the vehicle, the oil in the automatic transmission 1 is also stored in the automatic transmission 1 But the oil is still present in the oil receiving groove 121a.

In this state, when the vehicle runs, the output shaft 121 rotates. When the output shaft 121 rotates, oil is scattered from the oil receiving groove 121a of the output shaft 121 by centrifugal force, as shown in FIG. When the oil is scattered from the oil receiving groove 121a, oil is supplied to a portion adjacent to the oil receiving groove 121a, so that the oil is lubricated at the beginning of the operation.

In particular, since the oil receiving groove 121a is provided adjacent to the roller bearing 23 supporting the output shaft 121, the oil scattered from the oil receiving groove 121a is discharged from the roller bearing 23 So that the roller bearing 23 is lubricated. As a result, the supply of oil is delayed at the beginning of the operation of the automatic transmission 1, and the bearing 23 is prevented from being dislocated or damaged.

Since the output shaft of the automatic transmission having the oil storing function is installed inside the automatic transmission 1, it is possible to prevent the roller bearing from being burned due to the lubrication delay at the beginning of the operation of the automatic transmission 1.

1: Automatic transmission
11: Housing
12: Input shaft
13: Torque converter
14: gear assembly
15, 16: clutch assembly
21: Output shaft
22: Differential gear shaft
23: Roller Bearing
121: Output shaft
121a: oil receiving groove

Claims (10)

An output shaft of an automatic transmission, installed in an automatic transmission, for outputting a rotational force shifted by the automatic transmission to a differential gear,
An oil receiving groove is formed at a predetermined depth from the surface of the output shaft so that oil is stored at one side of the output shaft,
The inner end of the oil receiving groove is closed,
Wherein the oil receiving groove is formed in a plurality of along the circumferential direction of the output shaft,
The oil receiving grooves are all formed at the same distance from the end of the output shaft,
Wherein the oil receiving groove is formed to have the same cross sectional area according to the depth.
The method according to claim 1,
Wherein the oil receiving groove is formed on an outer side of a portion of the output shaft where the output shaft is supported by the bearing.
delete The method according to claim 1,
Wherein the oil receiving grooves are formed at equal angular intervals from each other.
delete delete The method according to claim 1,
When the rotation of the output shaft is stopped, an ATF (Automatic Transmission Flue) is stored in the oil receiving groove,
And the ATF is scattered from the oil receiving groove when the output shaft rotates.
The method according to claim 1,
Wherein a portion of the output shaft where the oil receiving groove is formed is spaced apart from an inner surface of the housing of the automatic transmission.
An automatic transmission including an output shaft according to any one of claims 1, 2, 4, 7, and 8.
10. The method of claim 9,
Wherein the output shaft is supported by a tapered roller bearing installed inside the automatic transmission.
KR1020150167346A 2015-11-27 2015-11-27 Output shaft of automatic transmission with function of storing oil and automatic transmission having the same KR101795170B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150167346A KR101795170B1 (en) 2015-11-27 2015-11-27 Output shaft of automatic transmission with function of storing oil and automatic transmission having the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150167346A KR101795170B1 (en) 2015-11-27 2015-11-27 Output shaft of automatic transmission with function of storing oil and automatic transmission having the same

Publications (2)

Publication Number Publication Date
KR20170062025A KR20170062025A (en) 2017-06-07
KR101795170B1 true KR101795170B1 (en) 2017-11-07

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KR1020150167346A KR101795170B1 (en) 2015-11-27 2015-11-27 Output shaft of automatic transmission with function of storing oil and automatic transmission having the same

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009513895A (en) * 2003-07-16 2009-04-02 ダイムラー・アクチェンゲゼルシャフト Double clutch transmission
JP2015102234A (en) 2013-11-28 2015-06-04 愛知機械工業株式会社 Lubrication structure and lubrication method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009513895A (en) * 2003-07-16 2009-04-02 ダイムラー・アクチェンゲゼルシャフト Double clutch transmission
JP2015102234A (en) 2013-11-28 2015-06-04 愛知機械工業株式会社 Lubrication structure and lubrication method

Also Published As

Publication number Publication date
KR20170062025A (en) 2017-06-07

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