KR101784556B1 - scissors gear operating structure of the engine for automobile - Google Patents

scissors gear operating structure of the engine for automobile Download PDF

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Publication number
KR101784556B1
KR101784556B1 KR1020150091735A KR20150091735A KR101784556B1 KR 101784556 B1 KR101784556 B1 KR 101784556B1 KR 1020150091735 A KR1020150091735 A KR 1020150091735A KR 20150091735 A KR20150091735 A KR 20150091735A KR 101784556 B1 KR101784556 B1 KR 101784556B1
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KR
South Korea
Prior art keywords
gear
scissors
driven gear
driven
drive gear
Prior art date
Application number
KR1020150091735A
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Korean (ko)
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KR20170001965A (en
Inventor
한형민
이강우
양봉수
김윤형
Original Assignee
쌍용자동차 주식회사
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Priority to KR1020150091735A priority Critical patent/KR101784556B1/en
Publication of KR20170001965A publication Critical patent/KR20170001965A/en
Application granted granted Critical
Publication of KR101784556B1 publication Critical patent/KR101784556B1/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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels
    • F16H55/18—Special devices for taking up backlash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
    • F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation
    • F02B77/13—Acoustic insulation
    • 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
    • F16H57/0006—Vibration-damping or noise reducing means specially adapted for gearings

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Gears, Cams (AREA)

Abstract

The present invention relates to a structure for operating a scissors gear of an automobile engine, and in the prior art, only one noise generated from one driveline gear can be reduced by a single scissor gear, so that when a plurality of driven gears are provided in an engine, There has been a problem in that it is necessary to provide two scissors gears.
Accordingly, the present invention includes a drive gear 400 fixedly coupled to the drive gear shaft 300 and having a drive gear teeth portion 450 formed therearound; A first driven gear 200 fixedly coupled to the driven gear shaft 100 and having a first driven gear teeth portion 250 formed around the driving gear teeth 450; The drive gear 400 and the scissors gear 500 installed on the driven gear shaft 300 together with the drive gear teeth portion 450 and the scissors gear tooth portion 550 to be rotated together with the first driven gear tooth portion 250 ); A drive gear 400 and a drive gear gear 500 installed below the drive gear teeth 450 and the scissors gear teeth 550 so as to rotate together with the second drive gear teeth 650, And the first driven gear 200 and the second driven gear 600 are engaged with the drive gear 400 and the scissors gear 500 or the scissors gear 500 and the second driven gear 600, The first drive gear 400 is engaged with the second drive gear 600 so that the noise is reduced.

Description

Technical Field [0001] The present invention relates to a scissors gear operating structure for an automobile engine,

The present invention relates to a structure of a scissor gear of an automobile engine, and more particularly, to a structure for operating a scissor gear of an automotive engine, in which a first drive gear and a second drive gear The present invention relates to a structure for operating a scissors gear of an automobile engine, which can reduce noise by reducing the manufacturing cost of a vehicle and simplify the structure of a vehicle to which the scissors gear is applied.

Generally, the engine of a vehicle is provided with a drive gear and a driven gear.

When the drive gear rotates, the driven gear that is installed to be engaged with the drive gear rotates together.

At this time, when the drive gear teeth of the drive gear and the driven gear teeth of the driven gear are rotated to rotate, a noise generated between the drive gear teeth of the drive gear and the driven gear teeth of the driven gear causes operation noise .

In order to reduce such operating noise, a scissors gear is installed on the front surface of the driven gear.

FIG. 1 is a perspective view showing a structure of a scissors gear operating structure of a conventional automotive engine, and FIG. 2 is a front view showing a scissors gear operating structure of a conventional automotive engine.

That is, the urging force of the spring provided inside the scissors gear 30 exerts a force in a direction opposite to the direction in which the driven gear 20 rotates, so that the drive gear teeth of the drive gear 10 and the driven gear teeth of the driven gear 20 So that the operating noise of the drive gear 10 and the driven gear 20 is reduced.

However, such an operation structure of the scissors gear of the automotive engine has the following problems.

That is, since only one noise generated from one driving gear can be reduced by one scissor gear, a plurality of scissors gears must be provided when a plurality of driven gears are provided in the engine.

Particularly, when a plurality of driven gears are provided in the engine, a plurality of scissors gears must be provided, which complicates the structure of the vehicle, resulting in deteriorated workability and increased production cost of the vehicle.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a drive gear and a driven gear which are installed in an engine of an automobile and are provided with first and second driven gears And to provide a structure for operating a scissor gear of an automotive engine, which can reduce the noise reduction effect and the work efficiency of the vehicle by simplifying the structure of the vehicle in which the scissors gear is applied together with the rotating drive gear.

According to the present invention, there is provided a scissor gear operating structure of an automotive engine, comprising: a drive gear fixedly coupled to a drive gear shaft and having a drive gear tooth portion formed around the drive gear shaft; A first driven gear fixedly coupled to the driven gear shaft and having a first driven gear tooth portion engaged with the drive gear tooth portion; A scissor gear mounted on a driven gear shaft with a drive gear; A second driven gear having a second driven gear tooth portion rotatably engaged with only the drive gear teeth portion and the scissors gear tooth portion; .
The thickness of the first driven gear tooth portion is formed to be equal to the thickness width of the drive gear tooth portion plus the teeth of the scissors gear tooth portion and the thickness width of the second driven gear tooth portion is set equal to the thickness of the drive gear tooth portion and the scissors gear tooth portion So that the first and second driven gears are engaged together on both the drive gear and the scissors gear.

The drive gear; A first driven gear; Scissors gear; A second driven gear; And the thickness of the second driven gear teeth portion is formed to be equal to the thickness width of the drive gear teeth portion and the thickness of the teeth of the scissors gear portion, so that the thickness of the first driven gear teeth portion is made equal to the thickness of the drive gear teeth portion, And the gear is engaged with the second driven gear together with the drive gear without being engaged with the first driven gear.

In the present invention, when two or more gears are driven, the scissors gear is mounted on the drive gear shaft together with the drive gear to simultaneously reduce the noise of the first driven gear and the remaining one second driven gear driven by the scissors gear as a drive The effect can be seen. In addition, when the noise of the second driven gear is larger when three gears are attached and driven, the scissor function can be applied to the second driven gear, so that the noise reduction effect of the second driven gear is good.

Particularly, by simplifying the structure of the vehicle, it is possible to improve the workability of the vehicle in the production process of the vehicle and to lower the production cost of the vehicle.

1 is a perspective view showing a structure of a scissors gear operating structure of a conventional automotive engine.
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]
3 is a perspective view showing a structure of a scissor gear operating structure of an automotive engine according to the present invention.
4 is a front view showing a structure of a scissors gear operating structure of an automotive engine according to the present invention.
5 is a plan view showing a structure of a scissor gear operating structure of an automotive engine according to the present invention.
6 is a perspective view showing another embodiment of a scissor gear operating structure of an automotive engine according to the present invention.
7 is a plan view showing another embodiment of a scissors gear operating structure of an automotive engine according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a perspective view showing a structure of a scissor gear operation structure of an automotive engine according to the present invention, FIG. 4 is a front view showing a structure of a scissor gear operation structure of an automotive engine according to the present invention, 6 is a perspective view showing another embodiment of a scissor gear operating structure of an engine for an automobile according to the present invention, and Fig. 7 is a perspective view showing the structure of a scissor gear of an automobile according to the present invention, Fig. 7 is a plan view showing another embodiment of the scissors gear operating structure of the engine for the engine of Fig.

The present invention relates to a scissor gear operating structure for an automotive engine for reducing operating noise of a drive gear and a driven gear which are installed in an engine of an automobile, wherein a drive gear shaft (300) A driving gear 400 having a drive gear teeth portion 450 formed at a center thereof and a driven gear shaft 100 fixed at a center thereof and a drive gear gear portion 450 engaged with a drive gear tooth portion 450 of the drive gear 400, And a first driven gear 200 on which the one-driven gear teeth 250 are formed.

The scavenge gears 450 and the scissors gear teeth 550 are engaged with the first driven gear teeth 250 of the first driven gear 200, The gear 500 is installed together with the driven gear shaft 300 so that the thickness of the drive gear tooth 450 plus the scissors gear teeth 550 is coincident with the first gear tooth 250 Should be formed to a thickness that can be held.

The drive gear 400 and the scissors gear 500 are provided under the drive gear teeth 450 and the scissors gear teeth 550 so that the second gear teeth 650 The driven gear 600 is installed. To this end, the thickness of the second driven gear tooth portion 650 is formed to be thick enough to be engaged with the drive gear teeth portion 450 and the scissors gear teeth portion 550 together.
That is, one side of the drive gear 400 and the scissors gear 500, which are provided together on the drive gear shaft 300, are engaged with the first driven gear 200 and the other side of the drive gear 400 and the scissors gear 500 And the other side is engaged with the second driven gear 600 and the second driven gear teeth 650 of the second driven gear 600 and the first driven gear teeth 250 of the first driven gear 200 Are separated from each other.

The drive gear 400 is installed on the driven gear shaft 300 so that only the drive gear teeth portion 450 is engaged with the first driven gear tooth portion 250 of the first driven gear 200, The scissors gear 500 installed together with the drive gear 400 is prevented from engaging with the first driven gear 200 and the second driven gear teeth portion 600 is engaged with the second driven gear 600 at the lower end thereof, 650) is formed to have a thickness width that can be engaged with the drive gear teeth portion (450) and the scissors gear tooth portion (550).

The present invention relates to a scissors gear operating structure of an automobile engine.

That is, in a scissor gear operating structure of an automotive engine for reducing operating noise of a drive gear and a driven gear which are provided in an engine of an automobile, a drive gear 400, a first driven gear 200, (500) and a second driven gear (600).

The drive gear 400 and the scissors gear 500 installed together with the driven gear shaft 300 are configured such that the drive gear teeth portion 450 and the scissors gear tooth portion 550 together form the gear teeth of the first driven gear 200 When the drive gear 400 rotates, the scissors gear 500 is also rotated together with the first driven gear 200 in a state in which it is engaged with the first driven gear.

The second driven gear teeth 650 of the second driven gear 600 are spaced apart from the first driven gear teeth 250 of the first driven gear 200, The first driven gear teeth portion 250 of the first driven gear 200 rotates in engagement with the drive gear 400 and the scissors gear 500 only.

That is, the drive gear 400 and the scissors gear 500 have a thickness equal to the thickness of the drive gear teeth 450 and the thickness of the scissors gear teeth 550 to the same thickness as the thickness of the first driven gear teeth 250 The drive gear 400 and the scissors gear 500 are engaged with one side of the first driven gear 200 while the other side is engaged with the second driven gear 600 The scissors gear 500 is applied to both the first driven gear 200 and the second driven gear 600 to rotate the two gears.

delete

If the noise of the first drill gear 200 and the second drill gear 600 of the second driven gear 600 is greater, the scissor function may be applied only to the second driven gear 600. Therefore, the first driven gear 200 may be engaged only with the drive gear 400, and the second driven gear 600 requiring the scissor function may be engaged with the drive gear 400 and the scissors gear 500 together. Then, the scissors gear 500 reduces the operating noise of the second driven gear 600.

That is, when the scissors gear 500 is installed on the drive gear shaft 300 together with the drive gear 400, the thickness of the first driven gear teeth 250 of the first driven gear 200 is smaller than the thickness of the drive gear teeth 450 So that the drive gear 400 is engaged with the first driven gear 200 only. The second driven gear 600 requiring a scissor function is moved in a direction opposite to the thickness of the scissors gear tooth portion 550 and the drive gear 400, The thickness of the second driving gear teeth portion 650 is formed to be equal to the thickness of the gear teeth portion 450 so that the second driving gear 600 and the scissors gear 500 and the drive gear 400 are engaged with each other. Then, the scissors gear 500 reduces operating noise of the second driven gear 600.

100: driven gear shaft 200: first driven gear
250: first driven gear tooth portion 300: drive gear shaft
400: drive gear 450: drive gear tooth portion
500: Scissors gear 550: Scissors gear tooth portion
600: second driven gear 650: second driven gear tooth portion

Claims (4)

delete delete 1. A scissor gear operating structure for an automobile engine for reducing operating noise of a drive gear and a driven gear which are provided in an engine of an automobile,
A drive gear 400 to which a drive gear shaft 300 is fixedly coupled at the center and a drive gear teeth portion 450 is formed around the drive gear shaft;
A first driven gear 200 fixedly coupled to a driven gear shaft 100 at a center thereof and having a first driven gear tooth portion 250 formed around the driving gear teeth portion 450;
The scissors gears 300 and the scissors gears 300 installed on the driven gear shaft 300 together with the drive gear 400 prevent the first driven gear teeth 250 of the first driven gear 200 and the circumferential scissors gear teeth 550 from meshing with each other, 500);
The drive gear 400 and the second driven gear teeth 650 are provided below the scissors gear 500 so as to rotate together with only the drive gear teeth 450 and the scissors gear teeth 550, And a second driven gear 600,
The first driven gear 200 is formed such that the thickness of the first driven gear tooth portion 250 is equal to the thickness of the drive gear teeth portion 450,
The second drain gear 600 is formed so that the thickness of the second driven gear tooth portion 650 is equal to the thickness width of the drive gear teeth portion 450 plus the thickness of the scissors gear tooth portion 550
Wherein the scissors gear (500) is engaged with the second driven gear (600) together with the drive gear (400) without being engaged with the first driven gear (200). delete
KR1020150091735A 2015-06-29 2015-06-29 scissors gear operating structure of the engine for automobile KR101784556B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150091735A KR101784556B1 (en) 2015-06-29 2015-06-29 scissors gear operating structure of the engine for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150091735A KR101784556B1 (en) 2015-06-29 2015-06-29 scissors gear operating structure of the engine for automobile

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KR20170001965A KR20170001965A (en) 2017-01-06
KR101784556B1 true KR101784556B1 (en) 2017-10-11

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102606888B1 (en) * 2018-12-20 2023-11-29 현대자동차주식회사 Anti-backlash structrue of scissors gear

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001193794A (en) * 1999-11-01 2001-07-17 Toyota Motor Corp Gear mechanism for power transmission system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001193794A (en) * 1999-11-01 2001-07-17 Toyota Motor Corp Gear mechanism for power transmission system

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