KR101342997B1 - Continuously variable transmission - Google Patents

Continuously variable transmission Download PDF

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KR101342997B1
KR101342997B1 KR1020120073304A KR20120073304A KR101342997B1 KR 101342997 B1 KR101342997 B1 KR 101342997B1 KR 1020120073304 A KR1020120073304 A KR 1020120073304A KR 20120073304 A KR20120073304 A KR 20120073304A KR 101342997 B1 KR101342997 B1 KR 101342997B1
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South Korea
Prior art keywords
belt
pulley
continuously variable
variable transmission
roller assembly
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KR1020120073304A
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Korean (ko)
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이무영
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이무영
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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
    • F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/16—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
    • F16H9/20—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts both flanges of the pulleys being adjustable
    • 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
    • F16H55/32—Friction members
    • F16H55/36—Pulleys
    • F16H2055/363—Pulleys with special means or properties for lateral tracking of the flexible members running on the pulley, e.g. with crowning to keep a belt on track

Abstract

The present invention relates to a continuously variable transmission capable of mounting, in a common continuously variable transmission comprising an input shaft (1), an output shaft (2), an input pulley (3), an output pulley (4) and a belt (5), etc, a roller assembly (20) comprising an upper V-shaped fixed base (21), rollers (23) provided on both ends of the upper V-shaped fixed base, respectively, a lower V-shaped fixed base (21), rollers (23) provided on both ends of the lower V-shaped fixed base, respectively, and a fixing shaft (22) for stacking and fixing the middle convex surfaces of the two V-shaped fixed bases, on the middle of the belt (5) for connecting the input pulley and the output pulley and of replacing the conventional belt (5) with an extension belt (10) for connecting the input pulley, the rollers (23) of the roller assembly and the output pulley, thereby automatically adjusting contact surfaces between the extension belt (10), and the input pulley (3) and the output pulley (4) while the two fixed bases (21) of the roller assembly automatically rotate around the fixing shaft (22) within a predetermined range according to transmission ratios. The continuously variable transmission of the present invention can transmit greater power than that of a conventional continuously variable transmission, can reduce a slip generated in the power transmission process, and can reduce the vibration of the belt generated in the power transmission process. Thus, the continuously variable transmission of the present invention can be useful as a power transmission apparatus for transmitting greater power.

Description

무단변속기{ Continuously Variable Transmission }Continuously Variable Transmission

도 1은 종래 무단변속기의 고속을 나타내는 개념도1 is a conceptual diagram showing the high speed of a conventional continuously variable transmission

도 2는 종래 무단변속기의 저속을 나타내는 개념도2 is a conceptual diagram showing a low speed of a conventional continuously variable transmission

도 3은 본 발명의 개념도3 is a conceptual diagram of the present invention

도 4는 롤러어셈블리의 개념도4 is a conceptual view of the roller assembly

도 5는 롤러어셈블리의 분해도5 is an exploded view of the roller assembly

도 6은 롤러어셈블리의 작동도6 is an operation of the roller assembly

＜도면의 주요 부분에 대한 부호의 설명＞Description of the Related Art

1 : 입력축 2 : 출력축 3 : 입력풀리1: input shaft 2: output shaft 3: input pulley

4 : 출력풀리 5 : 벨트 10 : 연장벨트4: output pulley 5: belt 10: extension belt

20 : 롤러어셈블리 21 : V형 고정대 22 : 고정축20: roller assembly 21: V-shaped holder 22: fixed shaft

23 : 롤러 24 : 고정축23: roller 24: fixed shaft

A : 입력풀리 방향에 있는 두 롤러의 거리A: Distance of two rollers in the direction of input pulley

B : 출력풀리 방향에 있는 두 롤러의 거리B: Distance between two rollers in the direction of output pulley

본 발명은 도 1 내지 도 2와 같이 "입력축(1), 출력축(2), 입력풀리(3), 출력풀리(4), 벨트(5)" 등으로 구성되는 일반적인 무단변속기보다 큰 동력을 전달할 수 있는 무단변속기에 대한 것이다.The present invention, as shown in Figs. 1 to 2 can transmit more power than a conventional continuously variable transmission composed of "input shaft (1), output shaft (2), input pulley (3), output pulley (4), belt (5)". It is about a continuously variable transmission.

종래 무단변속기는 벨트의 한계로 큰 동력을 전달하기 어려우며, 또한 동력전달과정에서 슬립현상이 나타나는 문제가 있다.Conventional continuously variable transmissions are difficult to transfer large power to the limits of the belt, there is also a problem that slip phenomenon occurs in the power transmission process.

그리고 도 1과 같은 고속모드에서 입력풀리(3)를 감싸는 벨트에 비해서 출력풀리(4)를 감싸는 벨트는 큰 힘을 전달하기 어렵다. 이러한 이유는 입력풀리를 감싸는 부분보다 출력풀리를 감싸는 부분이 적기 때문이다.In addition, the belt surrounding the output pulley 4 is difficult to transmit a large force as compared to the belt surrounding the input pulley 3 in the high speed mode as shown in FIG. 1. This is because there are fewer parts surrounding the output pulley than the part surrounding the input pulley.

위와 반대로 도 2와 같은 저속모드에서 입력풀리(3)를 감싸는 벨트는 출력풀리(4)를 감싸는 벨트에 비해서 큰 힘을 전달하기 어렵다. 이러한 이유는 입력풀리를 감싸는 부분이 출력풀리를 감싸는 부분보다 적기 때문이다.Contrary to the above, the belt surrounding the input pulley 3 in the low speed mode as shown in FIG. 2 is less likely to transmit a greater force than the belt surrounding the output pulley 4. This is because the part surrounding the input pulley is smaller than the part surrounding the output pulley.

본 발명은 종래 무단변속기에서 보다 큰 동력을 전달하기 위한 기계장치에 대한 것이다. 이를 위해서 본 발명은 입력풀리와 출력풀리를 연결하는 벨트의 중간부분에 상하 벨트를 모아주는 롤러어셈블리(20)를 시설하였다. 그리고 종래 무단변속기의 벨트 대신에 종래 벨트보다 길이가 긴 연장벨트(10)를 시설하였다.The present invention relates to a mechanism for transmitting greater power in a conventional continuously variable transmission. To this end, the present invention is equipped with a roller assembly 20 for collecting the upper and lower belts in the middle portion of the belt connecting the input pulley and the output pulley. And instead of the belt of the conventional continuously variable transmission, an extension belt 10 having a longer length than the conventional belt was installed.

롤러어셈블리가 상하 벨트를 모아줌으로서 벨트와 풀리의 접촉부분을 증가하고, 벨트와 풀리의 접촉부분이 증가함에 따라서 벨트가 전달하는 동력의 크기가 증가한다.As the roller assembly collects the upper and lower belts, the contact portion between the belt and the pulley increases, and as the contact portion between the belt and the pulley increases, the magnitude of power transmitted by the belt increases.

본 발명의 구성을 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다. 도 3은 본 발명의 개념도이고, 도 4 내지 도 6은 롤러어셈블리를 나타낸 것이다.Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings. 3 is a conceptual diagram of the present invention, Figures 4 to 6 show the roller assembly.

본 발명은 "입력축(1), 출력축(2), 입력풀리(3), 출력풀리(4), 벨트(5)" 등으로 구성되는 일반적인 무단변속기에서 입력풀리와 출력풀리를 연결하는 벨트(5)의 중간에 "위쪽에 V형 고정대(21) 및 상기 V형 고정대의 양 끝에 각각 시설되는 롤러(23),아래쪽에 V형 고정대(21) 및 상기 V형 고정대의 양 끝에 각각 시설되는 롤러(23), 그리고 상기 두 V형 고정대의 중간 볼록면을 겹쳐서 고정하는 고정축(22)으로 구성되는 롤러어셈블리(20)" 를 시설하고; 종래 벨트(5)를 "입력풀리와 롤러어셈블리의 롤러(23), 그리고 출력풀리" 를 연결하는 연장벨트(10)로 대체하여; 변속비에 따라 롤러어셈블리의 두 고정대(21)가 고정축(22)을 중심으로 일정한 범위에서 자동으로 회전하면서 연장벨트(10)와 입력풀리(3) 및 출력풀리(4)의 접촉면이 자동으로 조절되는 특징을 갖는 무단변속기이다.The present invention is a belt (5) connecting an input pulley and an output pulley in a general continuously variable transmission consisting of an "input shaft (1), an output shaft (2), an input pulley (3), an output pulley (4), a belt (5)," and the like. In the middle of the "), the V-shaped holder 21 and the roller 23 is provided at both ends of the V-shaped holder, respectively, the V-shaped holder 21 and rollers are provided at both ends of the V-shaped holder ( 23) and a roller assembly 20 ", which is composed of a fixed shaft 22 for superimposing and fixing the middle convex surfaces of the two V-shaped holders; Replacing the conventional belt 5 with an extension belt 10 connecting the "input pulley and the roller 23 of the roller assembly and the output pulley"; According to the gear ratio, the two mounting brackets 21 of the roller assembly rotate automatically about a fixed range around the fixed shaft 22, and the contact surfaces of the extension belt 10, the input pulley 3 and the output pulley 4 are automatically adjusted. It is a continuously variable transmission.

구체적으로 종래 벨트(5)를 대체하는 연장벨트(10)는 종래 벨트(5)에 비해서 길이가 길다. 본 발명의 무단변속기에서 롤러어셈블리가 중앙의 두 벨트를 모아주기 때문에 본 발명의 무단변속기에 사용되는 벨트는 종래 일반적인 무단변속기의 벨트보다 길다. 여기서 종래 벨트(5)라 함은 도 1 내지 도 2와 같이 일반적인 무단변속기에 장착되는 벨트를 말한다. 즉, 종래 벨트는 "입력풀리와 출력풀리를 연결하는 벨트" 를 말한다. 이와 달리 연장벨트는 "입력풀리와 롤러어셈블리의 롤러, 그리고 출력풀리를 연결하는 벨트" 를 말한다. 즉, 연장벨트는 본 발명의 롤러어셈블리가 구성되는 무단변속기에 사용되는 "길이가 연장된 벨트" 를 지칭한다.Specifically, the extension belt 10 replacing the conventional belt 5 has a longer length than the conventional belt 5. In the continuously variable transmission of the present invention, since the roller assembly collects two central belts, the belt used in the continuously variable transmission of the present invention is longer than the belt of the conventional continuously variable transmission. Here, the conventional belt 5 refers to a belt mounted to a general continuously variable transmission as shown in FIGS. 1 and 2. That is, the conventional belt refers to a "belt connecting the input pulley and the output pulley". In contrast, the extension belt refers to a belt connecting the input pulley, the roller of the roller assembly and the output pulley. That is, the extension belt refers to the "extended belt" used in the continuously variable transmission in which the roller assembly of the present invention is constructed.

도 4는 롤러어셈블리의 개념도이고, 도 5는 롤러어셈블리의 분해도이다. 먼저 2개의 V형 고정대(21)가 고정축(22)에 고정되는데, V형 고정대는 위쪽과 아래쪽에 각각 1개씩 자리한다. 두 V형 고정대의 중앙 볼록한 부분을 서로 겹친 상태에서 고정축으로 두 V형 고정대를 고정한다. 그리고 고정축은 무단변속기의 케이스 혹은 다른 고정물에 고정된다. 두 V형 고정대의 양측에는 롤러(23)가 각각 시설된다. 상기 롤러(23)는 고정축(23)에 회전가능하고도 고정되고, 고정축은 V형 고정대에 고정된다.4 is a conceptual view of the roller assembly, Figure 5 is an exploded view of the roller assembly. First, two V-shaped holders 21 are fixed to the fixed shaft 22, and one V-shaped holder is positioned at the top and the bottom, respectively. Secure the two V-shaped brackets with the fixed shafts with the central convex portions of the two V-shaped brackets overlapping each other. The fixed shaft is then fixed to the case or other fixture of the continuously variable transmission. The rollers 23 are provided at both sides of the two V-shaped holders, respectively. The roller 23 is rotatably fixed to the fixed shaft 23, the fixed shaft is fixed to the V-shaped holder.

도 3과 같이 연장벨트(10)는 위쪽 V형 고정대(21)의 양측에 있는 두 롤러(23)의 하단과 접촉하고, 아래쪽 V형 고정대의 양측에 있는 두 롤러의 상단과 접촉한다.As shown in FIG. 3, the extension belt 10 is in contact with the lower ends of the two rollers 23 on both sides of the upper V-shaped holder 21 and in contact with the upper ends of the two rollers on both sides of the lower V-shaped holder.

도 5는 롤러어셈블리의 작동도이다. 도 1과 같이 입력풀리가 와 출력풀리의 크기가 같은 경우에 A(입력풀리 방향에 있는 두 롤러의 거리)와 B(출력풀리 방향에 있는 두 롤러의 거리)가 같다. 그리고 고속모드(입력풀리가 출력풀리보다 큰 경우)에 A가 B보다 길고, 저속모드에서 B가 A보다 길다. 따라서 고속모드에서 출력풀리 방향의 두 벨트를 더욱 모아주고, 저속모드에서 입력풀리 방향의 두 벨트를 더욱 모아준다. 고속모드에서 출력풀리와 연장벨트의 접촉부분의 증가함에 따라 출력풀리 부분의 동력전달력을 증대할 수 있다. 이와 반대로 저속모드에서 입력풀리와 연장벨트의 접촉부분이 증가함에 따라 입력풀리 부분의 동력전달력을 증대할 수 있다.5 is an operation of the roller assembly. As shown in FIG. 1, when the input pulley and the output pulley have the same size, A (distance of two rollers in the input pulley direction) and B (distance of two rollers in the output pulley direction) are the same. A is longer than B in the high speed mode (when the input pulley is larger than the output pulley) and B is longer than A in the low speed mode. Therefore, in the high speed mode, the two belts in the output pulley direction are collected more, and in the low speed mode, the two belts in the input pulley direction are collected. In the high speed mode, the power transmission power of the output pulley portion can be increased by increasing the contact portion of the output pulley and the extension belt. On the contrary, as the contact portion of the input pulley and the extension belt increases in the low speed mode, the power transmission power of the input pulley portion can be increased.

참조로 각 롤러와 연장벨트의 접촉부분은 서로 맞물리는 구조로 구성된다.For reference, the contact portion of each roller and the extension belt is configured to engage with each other.

본 발명의 무단변속기는 종래 무단변속기보다 큰 동력을 전달할 수 있으며, 동력전달과정에서 발생하는 벨트의 슬립현상을 감소시킬 수 있다. 그리고 동력전달과정에서 발생하는 벨트의 떨림현상을 감소시킬 수 있다. 따라서 본 발명의 무단변속기는 큰 동력을 전달하는 동력전달장치로서 유용하게 사용될 수 있다.The continuously variable transmission of the present invention can transmit more power than the conventional continuously variable transmission, and can reduce the slip phenomenon of the belt generated in the power transmission process. In addition, it is possible to reduce the vibration of the belt generated during the power transmission process. Therefore, the continuously variable transmission of the present invention can be usefully used as a power transmission device for transmitting a large power.

Claims (1)

본 발명은 "입력축(1), 출력축(2), 입력풀리(3), 출력풀리(4), 벨트(5)" 등으로 구성되는 일반적인 무단변속기에서 입력풀리와 출력풀리를 연결하는 벨트(5)의 중간에 "위쪽에 V형 고정대(21) 및 상기 V형 고정대의 양 끝에 각각 시설되는 롤러(23),아래쪽에 V형 고정대(21) 및 상기 V형 고정대의 양 끝에 각각 시설되는 롤러(23), 그리고 상기 두 V형 고정대의 중간 볼록면을 겹쳐서 고정하는 고정축(22)으로 구성되는 롤러어셈블리(20)" 를 시설하고;The present invention is a belt (5) connecting an input pulley and an output pulley in a general continuously variable transmission consisting of an "input shaft (1), an output shaft (2), an input pulley (3), an output pulley (4), a belt (5)," and the like. In the middle of the "), the V-shaped holder 21 and the roller 23 is provided at both ends of the V-shaped holder, respectively, the V-shaped holder 21 and rollers are provided at both ends of the V-shaped holder ( 23) and a roller assembly 20 ", which is composed of a fixed shaft 22 for superimposing and fixing the middle convex surfaces of the two V-shaped holders; 종래 벨트(5)를 "입력풀리와 롤러어셈블리의 롤러(23), 그리고 출력풀리" 를 연결하는 연장벨트(10)로 대체하여;Replacing the conventional belt 5 with an extension belt 10 connecting the "input pulley and the roller 23 of the roller assembly and the output pulley"; 변속비에 따라 롤러어셈블리의 두 고정대(21)가 고정축(22)을 중심으로 일정한 범위에서 자동으로 회전하면서 연장벨트(10)와 입력풀리(3) 및 출력풀리(4)의 접촉면이 자동으로 조절되는 특징을 갖는 무단변속기According to the gear ratio, the two mounting brackets 21 of the roller assembly rotate automatically about a fixed range around the fixed shaft 22, and the contact surfaces of the extension belt 10, the input pulley 3 and the output pulley 4 are automatically adjusted. Continuously variable transmission
KR1020120073304A 2012-07-04 2012-07-04 Continuously variable transmission KR101342997B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1010323B (en) * 2021-10-26 2022-10-14 Λεωνιδας Σπυριδωνα Θεοχαρης Continuous -movement revs regulator for pulleys interconnection via chain of spheres

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1010323B (en) * 2021-10-26 2022-10-14 Λεωνιδας Σπυριδωνα Θεοχαρης Continuous -movement revs regulator for pulleys interconnection via chain of spheres

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