KR20000036723A - Fully geared and continuously variable transmission using taper screw gear - Google Patents

Fully geared and continuously variable transmission using taper screw gear Download PDF

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Publication number
KR20000036723A
KR20000036723A KR1020000015615A KR20000015615A KR20000036723A KR 20000036723 A KR20000036723 A KR 20000036723A KR 1020000015615 A KR1020000015615 A KR 1020000015615A KR 20000015615 A KR20000015615 A KR 20000015615A KR 20000036723 A KR20000036723 A KR 20000036723A
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KR
South Korea
Prior art keywords
gear
continuously variable
variable transmission
differential
conical screw
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Application number
KR1020000015615A
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Korean (ko)
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김병래
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김병래
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Priority to KR1020000015615A priority Critical patent/KR20000036723A/en
Publication of KR20000036723A publication Critical patent/KR20000036723A/en

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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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/0806—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts
    • F16H37/0826—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one output shaft
    • 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
    • F16H48/00—Differential gearings
    • F16H48/20—Arrangements for suppressing or influencing the differential action, e.g. locking devices
    • 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
    • F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
    • F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
    • F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
    • F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
    • F16H37/10—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing at both ends of intermediate shafts
    • F16H2037/104—Power split variators with one end of the CVT connected or connectable to two or more differentials

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

Abstract

PURPOSE: A continuously variable transmission is provided to change speed automatically depending on the change of input/output torque with a gear. CONSTITUTION: A gear-type continuously variable transmission consists of a conical screw gear(1), a bevel gear type differential gear(2) and a ring gear(3). A couple of input/output shafts(5,6) are located on the same axis as the differential gear and the other end is connected with the conical screw gear. The ring gear and a differential gear body move back and forth in a structure of a spline or a ball screw. The ring gear is used by setting the differential gear body, the conical screw gear and a pinion gear(30) at the same screw thread.

Description

원추형 나사기어를 이용한 기어식 무단변속기{Fully geared and continuously variable transmission using taper screw gear}Fully geared and continuously variable transmission using taper screw gear}

본 발명은 기어식 무단변속기의 구조에 관한 것으로, 더욱 상세하게는 차동기어와 원추형 나사기어의 조합에 의한 이송작용 및 원추형 나사기어의 가변 나사산수에 의해 무단 변속이 실행되도록 하는 구조에 관한 것이다.The present invention relates to a structure of a gearless continuously variable transmission. More particularly, the present invention relates to a structure in which a continuously variable transmission is performed by a feed action by a combination of a differential gear and a conical screw gear and a variable thread number of the conical screw gear.

무단변속기는 변속이 유단이 아닌 것의 총칭으로 변속을 무단계로 작동하기 위한 기구와 발진 및 전후진 변환을 위한 기구와 조합되어 사용된다.A continuously variable transmission is a generic term for shifts that are not stepped, and is used in combination with a mechanism for operating the shift steplessly and a mechanism for starting and shifting forward and backward.

일반적인 무단변속기 구조는 마찰전동장치로써 동력전달을 위해 높은 압력 및 큰 장력이 필요하며, 변속제어를 위해 엔진회전속도와 차속을 기준으로 가속패달의 개도각에 의하여 변속이 실시되므로 가속지연이 발생된다.In general, the continuously variable transmission structure is a friction transmission device that requires high pressure and high tension for power transmission, and the acceleration is delayed by shifting the opening angle of the accelerator pedal based on the engine rotation speed and the vehicle speed for shift control. .

도 3의 메탈푸싱벨트타입은 입력축과 출력축에 두 쌍의 원추형 디스크로 구성된 풀리와 금속판을 연결한 메탈벨트 또는 다수의 금속제 링크를 연결한 체인으로 구성되어 있으며 각 풀리에 축력을 가하여 풀리와 벨트의 접촉반경을 변경하여 변속비를 제어한다.The metal pushing belt type of FIG. 3 is composed of a pulley composed of two pairs of conical disks and a metal belt connecting a metal plate or a chain connecting a plurality of metal links to the input shaft and the output shaft. Shift ratio is controlled by changing the contact radius.

도 4의 하프트로이달타입은 입력축 디스크의 동력이 한쌍의 롤러에 의해 출력축 디스크에 전달되어 반대 방향으로 회전 구동하게 된다. 롤러를 대칭방향으로 편심 시키면 디스크와 롤러 접촉면에서 구름방향으로 수직방향의 상대 미끄럼인 사이드 슬립이 생기고, 이것을 이용하여 롤러가 축의 둘레에 회전하는 힘(경전력)을 제어한다. 롤러는 고압 하에서 특수한 오일의 점성력에 의해 동력전달이 이루어지며 전자-유압장치가 사용되어진다.In the half-troidal type of FIG. 4, the power of the input shaft disk is transmitted to the output shaft disk by a pair of rollers, and rotates in the opposite direction. Eccentricity of the roller in the symmetrical direction results in a side slip, which is a relative sliding in the vertical direction in the rolling direction at the disk and roller contact surfaces, which is used to control the force (light power) at which the roller rotates around its axis. The rollers are powered by a special oil viscosity under high pressure and an electro-hydraulic device is used.

따라서 종래의 무단변속기는 별도의 동력원과 가압장치 및 과도한 압력을 방지하기 위한 센서와 제어기구가 필요하여 구조가 복잡하고, 과도한 기계적 스트레스로 대용량의 변속기에는 적용이 어려운 문제점이 발생하게 되는 것이다.Therefore, the conventional continuously variable transmission requires a separate power source, a pressurization device, and a sensor and a control mechanism to prevent excessive pressure, which is complicated in structure, and it is difficult to apply a large capacity transmission due to excessive mechanical stress.

본 발명은 상기와 같은 문제점을 해소하기 위해 기어장치를 사용하여 입출력 토크의 변화에 따라 무단, 자동변속이 이루어지는 원추형 나사기어식 무단변속기의 구조를 제공하는데 그 목적이 있는 것이다.It is an object of the present invention to provide a structure of a conical screw gear type continuously variable transmission in which a stepless, automatic transmission is made according to a change in input / output torque using a gear device to solve the above problems.

이와 같은 목적을 달성하기 위한 본 발명은 입력축과 출력축을 차동기어의 동일 축 선상에 위치하고, 링기어를 포함하는 일단의 축을 원추형 나사기어에 연결하여, 입출력 토크의 차이를 차동기어의 회전력으로 변환하고 링기어에 이송력이 발생 되도록 하여 가변 나사산을 갖는 원추형 나사기어의 추력과 링기어의 추력에 의해 무단자동변속이 실행된다.In order to achieve the above object, the present invention places the input shaft and the output shaft on the same axis line of the differential gear, connects one end of the shaft including the ring gear to the conical screw gear, and converts the difference between the input and output torque into the rotational force of the differential gear. The feed force is generated in the ring gear so that the stepless automatic shift is performed by the thrust of the conical screw gear with variable thread and the thrust of the ring gear.

본 발명은 상시 토그 동기형 무단변속기로써 상기 차동기어 및 원추형 스크류기어의 기계적 특성에 의해 이루어진 것에 특징이 있다.The present invention is characterized by being made by the mechanical characteristics of the differential gear and the conical screw gear as a constant torque synchronous continuously variable transmission.

도 1은 원추형 나사기어와 베벨기어식 차동기어의 조립 개략도1 is a schematic view of the assembly of the conical screw gear and the bevel gear differential gear

도 2는 원추형 나사기어와 싱글플레니터리기어식 차동기어의 조립 개략도Figure 2 is a schematic view of the conical screw gear and single planetary gear differential gear assembly

도 3은 종래의 메탈푸싱벨트식 무단변속기의 개략도3 is a schematic view of a conventional metal pushing belt continuously variable transmission

도 4는 종래의 하프트로이달식 무단변속기의 개략도Figure 4 is a schematic diagram of a conventional half-troy CVT

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1 : 원추형 나사기어 2 : 베벨기어식 차동기어1: Conical screw gear 2: Bevel gear type differential gear

3 : 링기어 4 : 차동제한 기구3: ring gear 4: differential limiting mechanism

5 : 입력축 6 : 출력축5: input shaft 6: output shaft

7 : 부축 20 : 싱글플레니터리기어식 차동기어7: minor axis 20: single planetary gear differential gear

30 : 피니언기어30: pinion gear

이하 첨부된 도면에 의해 상세히 설명하면 다음과 같다.Hereinafter, described in detail by the accompanying drawings as follows.

도 1은 원추형 나사기어(1), 베벨기어식 차동기어(2), 링기어(3)로 구성된 기어식 무단변속기의 구조도로써, 차동기어의 3개 회전 요소중 입력축(5)과 출력축(6)을 차동기어와 동일 축 선상에 위치하고, 나머지 일단은 입력축과 기어구조로 연결된 부축에 링기어를 설치하여 원추형 나사기어와 연결된다.1 is a structural diagram of a gearless continuously variable transmission consisting of a conical screw gear 1, a bevel gear differential gear 2, and a ring gear 3, wherein an input shaft 5 and an output shaft 6 of three rotation elements of the differential gear are shown. ) Is located on the same axis line as the differential gear, and the other end is connected to the conical screw gear by installing a ring gear on the sub shaft connected to the input shaft and gear structure.

링기어와 차동기어바디는 스플라인 또는 볼스크류구조로 전후이송운동을 한다. 또 링기어는 3개 회전요소인 차동기어바디, 원추형 나사기어, 피니언기어(30)를 동일 나사산으로 하고 전후방향으로 이송이 가능한 형태로도 사용할 수있다.The ring gear and the differential gear body move forward and backward by spline or ball screw structure. In addition, the ring gear can be used in the form of a three-element rotary gear body, a conical screw gear, and a pinion gear 30 with the same thread and capable of conveying forward and backward.

도 2는 원추형 나사기어(1), 싱글플레니터리기어식 차동기어(20)의 베벨기어식 차동기어(2), 링기어(3)로 구성된 기어식 무단변속기의 구조도로서, 대용량의 동력을 전달하기 위해 다수의 원추형 나사기어설치에 적합하다.2 is a structural diagram of a gearless continuously variable transmission consisting of a conical screw gear 1, a bevel gear differential gear 2 and a ring gear 3 of a single planetary gear differential gear 20. FIG. Suitable for installation of multiple conical screw gears for transmission.

차동기어에는 가속지연 방지 및 엔진브레이크작동시 급격한 감속을 방지하기 위한 차동제한장치(4)를 설치할 수 있다.The differential gear may be provided with a differential limiting device (4) to prevent acceleration delays and to prevent sudden deceleration during engine brake operation.

상기 구성에 의해 차동기어는 입출력 토크의 차이를 회전력으로 변환하여 링기어의 전후 이송력을 발생하고 가변 나사산을 갖는 원추형 나사기어의 추력과 링기어의 추력에 의해 무단자동변속이 이루어지는 것이다.According to the above configuration, the differential gear converts the difference between the input and output torque into the rotational force to generate the front and rear feed force of the ring gear, and the stepless automatic transmission is performed by the thrust of the conical screw gear having a variable thread and the thrust of the ring gear.

이상에서 상술한 바와 같이 본 발명은 별도의 가압장치 및 제어기구를 위한 동력원이 불필요하므로 구조가 단순하고 내구성이 우수하여 대용량의 변속기에 적합하다. 또한 제작이 쉽고 소형경량으로 자동차, 공작기계, 전기모터, 운송장비등 적용범위가 다양하여 배기가스 감소, 에너지절약 및 편의성 향상의 효과가 있는 것이다.As described above, the present invention does not require a power source for a separate pressurization device and a control mechanism, so that the structure is simple and excellent in durability, and thus is suitable for a large capacity transmission. In addition, it is easy to manufacture and small and lightweight, and has a wide range of applications such as automobiles, machine tools, electric motors, and transportation equipment, which has the effect of reducing exhaust gas, saving energy, and improving convenience.

Claims (1)

입력축과 출력축 사이에 토크의 차이를 회전력으로 변환하는 차동기구와 부축에 원추형 스크류기어를 설치하여, 토크의 차이에 의한 회전력과 스크류기어의 반력에 의해 변속비의 연속적인 변경이 이루어지는 것을 특징으로 하는 기어식-무단변속기 구조.Gears characterized in that conical screw gears are installed on the differential shaft and the sub-shaft to convert the torque difference between the input shaft and the output shaft into the rotational force, and the gear ratio is continuously changed by the rotational force due to the torque difference and the reaction force of the screw gear. Equipped with continuously variable transmission.
KR1020000015615A 2000-03-27 2000-03-27 Fully geared and continuously variable transmission using taper screw gear KR20000036723A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113098192A (en) * 2021-04-02 2021-07-09 常州市江南三翔电机有限公司 Permanent magnet brushless direct current motor with accurate rotating speed regulation control

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680985A (en) * 1984-09-19 1987-07-21 Troester Thomas F Continuously variable transmission with epicyclic constant mesh gearing
JPH02168053A (en) * 1988-12-22 1990-06-28 Kubota Ltd Friction type continuously variable speed change gear
JPH06229447A (en) * 1993-02-02 1994-08-16 Koyo Seiko Co Ltd Engine auxiliary machine driving transmission

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680985A (en) * 1984-09-19 1987-07-21 Troester Thomas F Continuously variable transmission with epicyclic constant mesh gearing
JPH02168053A (en) * 1988-12-22 1990-06-28 Kubota Ltd Friction type continuously variable speed change gear
JPH06229447A (en) * 1993-02-02 1994-08-16 Koyo Seiko Co Ltd Engine auxiliary machine driving transmission

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113098192A (en) * 2021-04-02 2021-07-09 常州市江南三翔电机有限公司 Permanent magnet brushless direct current motor with accurate rotating speed regulation control
CN113098192B (en) * 2021-04-02 2022-02-18 常州市江南三翔电机有限公司 Permanent magnet brushless direct current motor with accurate rotating speed regulation control

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