KR20110001327A - Continuously variable transmission - Google Patents

Continuously variable transmission Download PDF

Info

Publication number
KR20110001327A
KR20110001327A KR1020090058815A KR20090058815A KR20110001327A KR 20110001327 A KR20110001327 A KR 20110001327A KR 1020090058815 A KR1020090058815 A KR 1020090058815A KR 20090058815 A KR20090058815 A KR 20090058815A KR 20110001327 A KR20110001327 A KR 20110001327A
Authority
KR
South Korea
Prior art keywords
input
unit
contact
inclined surface
rotating
Prior art date
Application number
KR1020090058815A
Other languages
Korean (ko)
Inventor
김태훈
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 KR1020090058815A priority Critical patent/KR20110001327A/en
Publication of KR20110001327A publication Critical patent/KR20110001327A/en

Links

Images

Classifications

    • 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
    • F16H15/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members
    • F16H15/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by friction between rotary members without members having orbital motion
    • F16H15/04—Gearings providing a continuous range of gear ratios
    • F16H15/06—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B
    • F16H15/16—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface
    • F16H15/18—Gearings providing a continuous range of gear ratios in which a member A of uniform effective diameter mounted on a shaft may co-operate with different parts of a member B in which the member B has a conical friction surface externally
    • 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
    • F16H57/022—Adjustment of gear shafts or bearings
    • F16H2057/0221—Axial adjustment

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Friction Gearing (AREA)

Abstract

An invention for a continuously variable transmission is disclosed. The continuously variable transmission includes: an input unit for transmitting rotational power, a conical rotation unit in which the inclined surface is rotated in contact with the input unit, and an output unit in contact with the inclined surface of the rotation unit. The present invention can improve the durability of the device because the power transmission of the continuously variable transmission without the belt member is made.

Description

CVT {CONTINUOUSLY VARIABLE TRANSMISSION}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuously variable transmission, and more particularly, to a continuously variable transmission in which a continuously variable shift is performed by a movement of an output unit engaged with a conical rotating portion.

In general, the stepped transmission has a constant transmission ratio, such as a five-speed manual transmission or a four-speed automatic transmission, and can adjust the transmission ratio as necessary.

The continuously variable transmission with improved stepped transmission is a transmission that can continuously change the speed ratio within a certain range.

The continuously variable transmission includes a primary pulley and a secondary pulley, and power is variably transmitted from the primary pulley to the secondary pulley through the belt member. The primary pulley is connected to the drive shaft and the secondary pulley is connected to the driven shaft.

The above technical configuration is a background art for helping understanding of the present invention, and does not mean a conventional technology well known in the technical field to which the present invention belongs.

Since the power transmission of the continuously variable transmission is performed only through the belt member, maintenance work is required according to the aging of the belt member, thereby reducing product durability. Therefore, there is a need for improvement.

The present invention has been made by the necessity as described above, and an object of the present invention is to provide a continuously variable transmission that can improve durability of a device because a belt member is not used in power transmission of the continuously variable transmission.

The continuously variable speed transmission apparatus according to the present invention includes an input unit for transmitting rotational power, a cone-shaped rotation unit in which the inclined surface is rotated in contact with the input unit, and an output unit in contact with the inclined surface of the rotation unit.

In addition, the input unit preferably includes a first input member in contact with the inclined surface and a first shaft member axially connected to the first input member.

In addition, the tooth is preferably formed on the inclined surface in contact with the first input member and the first input member.

In addition, the input unit preferably includes a second shaft member for receiving the rotational power, a connecting member extending from the second shaft member and surrounding the outer side of the rotating unit, and a second input member fixed to the connecting member and in contact with the inclined surface.

In addition, the tooth is preferably formed on the inclined surface in contact with the second input member and the second input member.

In addition, the output unit preferably includes an output gear that is in contact with the inclined surface and the output shaft member is rotated in shaft connection with the output gear.

In addition, the input unit and the output unit are provided on the same axis line, and at least one of the input unit and the output unit is preferably moved along the same axis line.

In addition, it is preferable that a plurality of rotating portions be provided.

In addition, the present invention preferably includes a rotating shaft extending to both sides of the rotating portion and a mounting portion to which the rotating shaft is rotatably mounted.

In the continuously variable transmission according to the present invention, since the input part and the output part are rotated in contact with the surface of the rotating part which is the frictional difference of the conical shape, and thus the stepless speed change is made, power transmission is made without using a separate belt member, thereby improving durability of the device. It also reduces the cost of maintenance work.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a continuously variable transmission according to the present invention. For convenience of description, the continuously variable transmission provided in the vehicle will be described as an example. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a perspective view schematically showing a front portion of a continuously variable transmission according to an embodiment of the present invention, Figure 2 is a perspective view schematically showing a rear portion of a continuously variable transmission according to an embodiment of the present invention, Figure 3 4 is a front view of a continuously variable transmission according to an exemplary embodiment of the present invention, FIG. 4 is a front view illustrating a state in which an input unit illustrated in FIG. 3 is moved, and FIG. 5 illustrates a state in which an output unit illustrated in FIG. 3 is moved. 6 is a front view illustrating a state in which teeth are formed in the rotation part and the input part illustrated in FIG. 3.

1 to 6, the continuously variable transmission device 1 according to an embodiment of the present invention, the input unit 10 for transmitting rotational power, and the inclined surface 32 in contact with the input unit 10 rotates Conical rotating part 30 and the output unit 40 is rotated in contact with the inclined surface 32 of the rotating part (30).

The input unit 10 includes a first input member 12 in contact with the inclined surface 32 of the rotating unit 30 and a first shaft member 14 axially connected to the first input member 12.

The input unit 10 is rotated by external power supplied from a vehicle, and the first input member 12 of the input unit 10 is rotated while contacting the inclined surface 32, so that the rotational power of the input unit 10 is rotated to the rotating unit 30. To pass.

The first input member 12 may be deformed into various shapes including a cylindrical shape in a technical concept that is rotated in contact with the inclined surface 32 of the rotating unit 30.

As shown in FIGS. 1 to 5, the outer side of the inclined surface 32 and the first input member 12 may be formed in a curved shape in which no teeth are formed. As shown in FIG. 6, teeth may be formed in the first input member 12 and the inclined surface 32 in contact with the first input member 12 so that the first input member 12 in contact with the rotating part 30 does not slip. Can be.

The teeth include an input tooth 16 formed along an outer curved surface of the first input member 12 and a rotation tooth 18 provided with an inclined surface 32 of the rotating part 30 in contact with the first input member 12. .

Therefore, since the input tooth 16 provided in the first input member 12 is operated in engagement with the rotary tooth 18 provided in the rotating part 30, power transmission can be made more accurately.

The rotating unit 30 may apply various shapes, including a cone shape, in a technical concept of providing a shifted output value while rotating in contact with the input unit 10 and the output unit 40.

Sides of the rotating part 30 is provided with an inclined surface 32, the rotating shaft (34, 36) is formed extending to both sides of the rotating part (30).

The rotating part 30 may be configured as a single piece, and when the torque capacity needs to be increased, a plurality of rotating parts 30 may be installed around the output part 40.

In the continuously variable transmission 1 according to an exemplary embodiment, three rotation units 30 are installed around the output unit 40, but the number of the rotating units 30 may increase or decrease according to the use environment of the continuously variable transmission device 1. Can be.

The rotating shafts 34 and 36 of the rotating unit 30 are rotatably mounted to the mounting unit 50 so that the rotating unit 30 maintains the state of being rotated in contact with the input unit 10 and the output unit 40.

The mounting unit 50 includes a first mounting member 52 in which the rotating shaft 34 protruding from the rotating unit 30 in the direction of the input unit 10 is rotatable, and in the direction of the output unit 40 in the rotating unit 30. It includes a second mounting member 54 is installed in a state in which the rotating shaft 36 is rotatable.

The output unit 40 includes an output gear 42 in contact with the inclined surface 32 of the rotating unit 30 and an output shaft member 44 that is axially connected to the output gear 42 to rotate.

The input unit 10 and the output unit 40 are installed on the same axis line, and at least one of the input unit 10 and the output unit 40 moves along the same axis line, thereby shifting.

Hereinafter, with reference to the accompanying drawings will be described in detail the operating state of the continuously variable transmission device 1 according to an embodiment of the present invention.

External power transmitted through the first shaft member 14 of the input unit 10 rotates the first input member 12. As the inclined surface 32 of the rotating unit 30 in contact with the first input member 12 rotates, the output gear 42 installed in contact with the inclined surface 32 is rotated.

The output shaft member 44 is also rotated by the rotation of the output gear 42 so that the shifted power is transmitted to the outside through the output unit 40.

When the shift is required, as shown in FIG. 4, when the input unit 10 does not move and the output unit 40 moves along the inclined surface 32 in the direction of the input unit 10, deceleration is performed. On the contrary, if the output unit 40 is moved away from the input unit 10, the speed is increased.

That is, the shape of the rotating part 30 is formed in a conical shape, the input unit 10 is rotated in contact with the portion having a small outer diameter in the conical shape of the rotating part 30, the output unit 40 is a cone shape of the rotating part 30 Since the input unit 10 is rotated in contact with the portion having a larger outer diameter than the contact portion, the output unit 40 has a larger rotation speed than the rotation speed supplied through the input unit 10.

When the input unit 10 rotates the rotation unit 30 while rotating one turn, the output unit 40 rotates by two wheels such that the output unit 40 which is rotated in contact with the rotation unit 30 rotates more than the input unit 10. Has

As the distance between the first input member 12 of the input unit 10 and the output gear 42 of the output unit 40 is closer, the deceleration is performed, and the output is output from the first input member 12 of the input unit 10. The farther the distance between the output gear 42 of the unit 40 is, the higher the speed is.

As shown in FIG. 5, the output unit 40 is not moved, and the input unit 10 may be shifted and shifted in the direction of the output unit 40. In addition, the input unit 10 may have an output unit 40. Various modifications may be made, such as shifting and shifting at the same time.

And, as shown in Figure 6, the input value die 16 is formed in the first input member 12, so that the power transmitted to the rotating unit 30 through the input unit 10 more accurately, the first input Rotating teeth 18 are also formed on the inclined surface 32 of the rotating part 30 in contact with the member 12, the input tooth 16 is engaged with the rotating teeth 18, the power of the input unit 10 is rotated 30 Is delivered.

Hereinafter, the continuously variable transmission 3 according to another embodiment of the present invention will be described with reference to the drawings.

For convenience of description, the same reference numerals are used to designate components having the same construction and operation as the exemplary embodiment, and detailed description thereof will be omitted.

7 is a perspective view schematically showing a continuously variable transmission according to another embodiment of the present invention, Figure 8 is a front view of a continuously variable transmission according to another embodiment of the present invention, Figure 9 is a rotating part shown in Figure 8 30) and a front view showing a state where teeth are formed in the input unit.

As shown in FIGS. 7 to 9, the input unit 20 according to another embodiment of the present invention includes a second shaft member 26 and a second shaft member 26 that receive rotational power and extend from the second shaft member 26. And a second input member 22 fixed to the connecting member 24 surrounding the outside of the 30 and the connecting member 24 to be in contact with the inclined surface 32.

As the second shaft member 26 rotates by external power, the second input member 22 in contact with the inclined surface 32 of the connecting member 24 and the rotating part 30 rotates.

The rotating unit 30 in contact with the second input member 22 rotates by the rotation of the second input member 22 to rotate the output unit 40.

The teeth are formed on the second input member 22 and the inclined surface 32 in contact with the second input member 22 so that the power transmitted to the rotating unit 30 through the input unit 20 is more accurately transmitted.

The teeth include an input tooth 29 provided on the second input member 22 and a rotation tooth 28 provided on the inclined surface 32 of the rotating part 30 in contact with the second input member 22.

Therefore, while the input tooth 29 is engaged with the rotary tooth 28, the power of the input unit 20 is transmitted to the rotation unit 30.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand.

In addition, the stepless speed changer provided in the vehicle has been described as an example, but this is merely an example, and the stepless speed change device of the present invention may be used in various mechanical devices requiring a shift in addition to the car.

Therefore, the true technical protection scope of the present invention will be defined by the claims.

1 is a perspective view schematically showing a front portion of a continuously variable transmission according to an embodiment of the present invention.

2 is a perspective view schematically showing a rear portion of a continuously variable transmission according to an embodiment of the present invention.

3 is a front view of a continuously variable transmission according to an embodiment of the present invention.

4 is a front view illustrating a state in which the input unit illustrated in FIG. 3 is moved.

5 is a front view illustrating a state in which the output unit illustrated in FIG. 3 is moved.

FIG. 6 is a front view illustrating a state in which teeth are formed in the rotation part and the input part shown in FIG. 3.

7 is a perspective view schematically showing a continuously variable transmission according to another embodiment of the present invention.

8 is a front view of a continuously variable transmission according to another embodiment of the present invention.

FIG. 9 is a front view illustrating a state in which teeth are formed in the rotation part and the input part shown in FIG. 8.

<Description of Symbols for Main Parts of Drawings>

1: continuously variable transmission 10, 20: input unit

12: first input member 14: first shaft member

16,29: Input value type 18,28: Rotating type

22: second input member 24: connecting member

26: second shaft member 30: the rotating portion

32: slope 34,36: rotation axis

40: output unit 42: output gear

44: output shaft member 50: mounting portion

Claims (9)

An input unit for transmitting rotational power; A cone-shaped rotating part which is rotated in contact with an inclined surface at the input part; And And a continuously variable output unit in contact with an inclined surface of the rotating unit. The method of claim 1, wherein the input unit, A first input member in contact with the inclined surface; And And a first shaft member axially connected to the first input member. The method of claim 2, Stepless speed change apparatus, characterized in that the teeth are formed on the inclined surface in contact with the first input member and the first input member. The method of claim 1, wherein the input unit, A second shaft member for receiving rotational power; A connection member extending from the second shaft member and surrounding the outer side of the rotating part; And And a second input member fixed to the connection member and in contact with the inclined surface. The method of claim 4, wherein Stepless transmission, characterized in that the teeth are formed on the inclined surface in contact with the second input member and the second input member. The method of claim 1, wherein the output unit, An output gear in contact with the inclined surface; And And an output shaft member connected to the output gear shaft to rotate. 7. The method according to any one of claims 1 to 6, And the input unit and the output unit are provided on the same axis line, and at least one of the input unit and the output unit moves along the same axis line. 7. The method according to any one of claims 1 to 6, Stepless speed transmission, characterized in that provided with a plurality of the rotating portion. The method of claim 8, A rotating shaft extending to both sides of the rotating part; And Stepless speed change apparatus characterized in that it comprises a mounting portion rotatably mounted to the rotating shaft.
KR1020090058815A 2009-06-30 2009-06-30 Continuously variable transmission KR20110001327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090058815A KR20110001327A (en) 2009-06-30 2009-06-30 Continuously variable transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090058815A KR20110001327A (en) 2009-06-30 2009-06-30 Continuously variable transmission

Publications (1)

Publication Number Publication Date
KR20110001327A true KR20110001327A (en) 2011-01-06

Family

ID=43609906

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090058815A KR20110001327A (en) 2009-06-30 2009-06-30 Continuously variable transmission

Country Status (1)

Country Link
KR (1) KR20110001327A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402304A (en) * 2016-09-14 2017-02-15 西南大学 Stepless speed changing device
CN110131374A (en) * 2019-06-12 2019-08-16 宁波东液传动科技有限公司 The deceleration mechanism of hydraulic motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402304A (en) * 2016-09-14 2017-02-15 西南大学 Stepless speed changing device
CN106402304B (en) * 2016-09-14 2018-07-10 西南大学 Stepless speed change device
CN110131374A (en) * 2019-06-12 2019-08-16 宁波东液传动科技有限公司 The deceleration mechanism of hydraulic motor

Similar Documents

Publication Publication Date Title
KR101407000B1 (en) 2-speed transmission
WO2009050922A1 (en) Hybrid drive device
WO2001073319A1 (en) Continuous variable transmission
CA2604587A1 (en) Transmission for vehicle
WO2015157940A1 (en) Continuously variable transmission
KR101627425B1 (en) Transmission
KR20110001327A (en) Continuously variable transmission
KR20150029223A (en) endless Transmission
KR100931965B1 (en) Continuous High Speed Gear Using Planetary Gears
KR101429265B1 (en) Continuously variable auto transmission
JPH10503264A (en) Variable transmission
WO2012028860A1 (en) Infinite speed transmission
CN108533700B (en) Continuously variable transmission
KR101554263B1 (en) Bicycle drive unit
CN105134920B (en) The unlimited formula buncher of mechanical gear
KR20150144154A (en) Transmission apparatus of a straight line structure using of ling-gear
KR100302723B1 (en) Four-wheel Drive Continuous Transmission
KR101496943B1 (en) Transmission apparatus
KR20100024754A (en) Stepless transmission
KR101315822B1 (en) Continuously variable transmission
KR101360431B1 (en) Stepless transmission
KR101310065B1 (en) Continuously variable transmission
KR101315823B1 (en) Continuously variable transmission
KR101293296B1 (en) Continuously variable transmission
KR950000480Y1 (en) Change-speed gearing device for a motor driven machine tool

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application