KR20030082657A - Roller worm wheel worm gearomitted - Google Patents

Roller worm wheel worm gearomitted Download PDF

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Publication number
KR20030082657A
KR20030082657A KR1020020021067A KR20020021067A KR20030082657A KR 20030082657 A KR20030082657 A KR 20030082657A KR 1020020021067 A KR1020020021067 A KR 1020020021067A KR 20020021067 A KR20020021067 A KR 20020021067A KR 20030082657 A KR20030082657 A KR 20030082657A
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KR
South Korea
Prior art keywords
worm
roller
worm wheel
teeth
wheel
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KR1020020021067A
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Korean (ko)
Inventor
오동수
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오동수
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Priority to KR1020020021067A priority Critical patent/KR20030082657A/en
Publication of KR20030082657A publication Critical patent/KR20030082657A/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
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/22—Toothed members; Worms for transmissions with crossing shafts, especially worms, worm-gears

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Transmission (AREA)
  • Gears, Cams (AREA)

Abstract

PURPOSE: A worm gear composed of a worm wheel with roller teeth is provided to reduce power loss, and to improve endurance by relieving friction between the worm and the roller teeth with converting slip between roller teeth into rolling. CONSTITUTION: A roller teeth(5) are mounted at the side of a worm wheel(2) of a worm instead of a normal worm wheel gear tooth. The roller teeth are formed along the circumference having the radius of rotation around a rotating shaft of the worm wheel. Bearing rotating shafts(6) are fastened at the side of the worm wheel and arranged at the same interval as the pitch of the worm. A roller(8) is installed in the bearing rotating shaft, and composed of an inclined surface embedding a bearing. Slip is prevented by equalizing the travel speed on the tooth surface of the worm to the travel speed on the inclined surface of the roller in rotating the worm.

Description

롤러(Roller)치(齒)가 달린 워엄 휠(worm wheel)로 구성된 워엄기어(worm gear){omitted}Worm gear consisting of worm wheels with roller teeth {omitted}

본 발명은 종래의 worm gear의 문제점을 해소한 워엄기어에 관한 것으로 현재 감속기로 쓰이고 있는 워엄기어 장치는 워엄과 워엄휠의 톱니면에서 일어나는 미끄럼 마찰로 인하여 열이 발생하고 동력전달 손실이 커서 동력의 80%정도 밖에 전하지 못하고 있으며 장시간 계속 사용시 발열과 마모등으로 기계적인 적격성은떨어지고 내구성이 결여되어 있다.The present invention relates to a worm gear that solves the problems of the conventional worm gear. The worm gear device, which is currently used as a reducer, generates heat due to sliding friction occurring at the tooth surface of the worm wheel and the worm wheel, resulting in high power transmission loss. Only about 80% of the time, and long-term continuous use of heat and wear, such as mechanical competence falls and lacks durability.

본 발명의 적용 대상은 회전 속도비의 격차를 크게 하는 감속기로서 워엄과 워엄휠의 톱니면에서의 미끄럼 마찰을 해소 하기 위해서 워엄휠의 톱니 대신 베어링이 장치된 Roller 치(齒)를 설치하여 끌림현상을 바퀴굴림현상으로 전환 한 것이다.The object of the present invention is a speed reducer that widens the gap of the rotational speed ratio, and in order to solve the sliding friction on the tooth surface of the worm wheel and the worm wheel, the roller tooth having a bearing is installed instead of the tooth of the worm wheel. To the wheel rolling phenomenon.

Roller측면과 워엄치면이 서로 맞닿는 접선상에서 미끄럼 현상이 일어나지 않도록 하기 위하여 웜 피치의 경사각(압력각)에 맞추어 롤러의 표면 경사각을 주고 한 접점의 이동속도가 상호 접하는 두면에 대하여 동일하게 하는 방책을 강구 하였다.In order to prevent the sliding from occurring on the tangential contact between the roller side and the worm's surface, provide a method of inclining the roller surface in accordance with the inclination angle (pressure angle) of the worm pitch and making the movement speed of one contact point the same on the two surfaces. It was.

즉 웜의 피치면과 롤러의 표면이 상호 맞닿는 모든 접점은 웜피치면상의 원주 이동 속도와 롤러 표면상의 원주 이동속도가 동일하게 하였다.That is, all the contact points where the pitch surface of the worm and the surface of the roller contact each other have the same circumferential movement speed on the worm pitch surface and the circumferential movement speed on the roller surface.

도 1 은 본 발명에 따른 롤러치가 달린 워엄 휠로 구성된 워엄기어 단면도1 is a cross-sectional view of the worm gear consisting of a worm wheel with a roller teeth according to the present invention

도 2 는 워엄과 롤러(Roller)치(齒) 제작도Figure 2 is a production of worm and roller (Roller) tooth (도)

도 3 은 롤러치(齒)단면도3 is a roller tooth cross-sectional view

* 도면의 주요부분에 대한 부호 설명 *Explanation of symbols on the main parts of the drawings

1 : 워엄(worm) 2 : 워엄 휠(worm wheel)1: worm 2: worm wheel

3 : worm 회전 중심축 4 : 워엄휠 회전 중심축3: central axis of worm rotation 4: central axis of worm wheel rotation

5 : Roller 齒 6 : Bearing 회전축5: Roller 齒 6: Bearing rotating shaft

7 : Bearing 8 : Roller7: Bearing 8: Roller

종래의 워엄기어에서 일어나는 미끄럼 마찰을 해소하기 위하여 도 1에서와 같이 워엄 휠(2)측면에 톱니를 대신하는 Roller 齒(5)를 설치함에 있어서 워엄휠(2)의 회전축을 중심으로 한 일정 반경의 원을 따라서 worm(1)의 피치거리와 같은 일정한 간격으로 경사면을 가진 Roller(8)이 달린 Bearing 회전축(6)을 고정실치하고 워엄(1)의 피치면과 워엄휠(2)의 Roller(8)의 표면 경사각은 도 2와 도 3에서와 같이 접면에서 미끄럼 현상이 일어나지 않도록 제작 하였다.In order to solve the sliding friction that occurs in the conventional worm gear, as shown in Figure 1 in the roller 5 (5) to replace the teeth on the side of the worm wheel (2) constant radius around the axis of rotation of the worm wheel (2) The bearing rotating shaft 6 with the roller 8 having the inclined surface is fixedly fixed at regular intervals, such as the pitch distance of the worm 1, and the pitch surface of the worm 1 and the roller of the worm wheel 2 are fixed. The surface inclination angle of 8) was manufactured so that the sliding phenomenon does not occur at the contact surface as shown in FIGS. 2 and 3.

즉 롤러(8)의 표면 경사각(압력각)과 워엄(1)의 피치 압력각이 합치되여 두면이 접선을 형성하고 접선상의 1개 접점의 이동속도가 워엄(1)의 피치경사면과 롤러(8)표면 경사면에서 상호 동일 속도로 접촉 이동하도록 하기 위하여 롤러(8)의 표면 경사각의 꼭지점이 워엄(1)의 회전축(3)상에 오도록 하고 롤러(8)표면 경사면 첨단부 직경 r1과 중단부 직경 r2의 비는 이와 경사면에서 선접촉을 이루는 워엄(1)의 치저까지의 직경 R1과 워엄(1)의 치단까지의 직경 R2의 비와 동일 하게 하였다.That is, the surface inclination angle (pressure angle) of the roller 8 and the pitch pressure angle of the worm 1 are combined so that two surfaces form a tangential line, and the moving speed of one tangential contact point is the pitch inclined surface of the worm 1 and the roller 8. ) the vertex of the surface inclination angle of the roller 8, so that on the rotation axis (3) of the worm (1) to be moved in contact with mutually the same speed in the surface slope and roller 8 surface inclined tip end diameter r 1 and the stop unit The ratio of the diameter r 2 was equal to the ratio of the diameter R 1 from the inclined surface to the tooth bottom of the worm 1 making the line contact and the diameter R 2 up to the teeth of the worm 1.

즉 r1/r2= R1/R2로 하였다.That is, r 1 / r 2 = R 1 / R 2 .

워엄(1)회전시 임의의 접점 이동은 워엄(1) 치면상에서의 이동속도와 롤러(8) 경사면상에서의 이동속도가 상호 동일하게 함으로써 접선에서 미끄럼 현상이 일어나지 않게 하였다.Any contact movement during the rotation of the worm 1 caused the sliding speed on the tangential surface of the worm 1 to be equal to the movement speed on the inclined surface of the roller 8 so that the sliding phenomenon did not occur at the tangent line.

웜과 웜휠 결합시 롤러의 한쪽 방향 회전을 위하여 워엄과 롤러치(齒)간에는 유격을 두어야만 롤러의 경사면이 워엄의 피치 한쪽면에만 접하게 되며 롤러치는 원활하게 같은 방향으로 회전하게 된다.When the worm and the worm wheel are combined, there is a clearance between the worm and the roller teeth (齒) for rotation of one direction of the roller, so that the inclined surface of the roller contacts only one side of the pitch of the worm, and the roller teeth rotate smoothly in the same direction.

워엄기어에 의한 감속은 원통치차 감속에 비하여 간단한 구조 장치로 높은 감속비를 실현할수 있으나, 톱니면의 마찰이 큼으로 인하여 재질의 선택과 냉각 및 윤활등 여러가지 문제점이 따르고 동력 손실이 큰 것이 결점이며 장시간 계속 사용은 제한을 받고 있다.Reduction by worm gear can realize high reduction ratio by simple structure device compared with reduction of cylindrical gear. However, due to large friction of tooth surface, various problems such as material selection, cooling, and lubrication are accompanied. Continued use is limited.

본 발명에 의해서 웜(1)1회전시 웜휠(2)의 1피치 이동으로 웜휠(2)의 齒가 50개 이면 1/50로 감속이 가능하며, 위와 같은 웜을 2단으로 연속하면 1/2,500로감속이 가능하고, 톱니면의 마찰을 완전히 해소하여 감속기의 동력 전달 효율 향상과 내구성이 보장된다.According to the present invention, when the number of worm wheels 2 is 50, the speed can be reduced to 1/50 when the worm wheel 1 rotates by 1 pitch when the worm 1 rotates. It is possible to reduce speed to 2,500 and to completely reduce friction of the tooth surface, thereby improving power transmission efficiency and durability of the gearhead.

Claims (2)

워엄(1)과 워엄휠(2)의 측면에 일반 워엄휠 톱니 대신 롤러치(齒)(5)를 설치한 워엄 기어 구조에서 워엄휠(2)의 회전축을 중심으로한 일정 이상의 회전 반경을 가지는 원주를 따라서 롤러치(齒)(5)를 설치함에 있어서 worm(1)의 피치 거리와 같게 일정한 간격으로 worm wheel의 측면에 Bearing 회전축(6)을 고정 설치하고 상기 Bearing 회전축(6)에는 Bearing(7)이 내장된 경사면을 가진 Roller(8)가 설치된 것을 특징으로 하는 롤러치(齒)(5)가 달린 Worm wheel 로 구성된 worm gear.In the worm gear structure in which roller teeth (5) are installed on the sides of the worm wheel (1) and the worm wheel (2) instead of the general worm wheel teeth, the worm wheel has a certain radius of rotation about the rotation axis of the worm wheel (2). In the installation of the roller teeth 5 along the circumference, the bearing rotation shaft 6 is fixed to the side of the worm wheel at regular intervals, such as the pitch distance of the worm 1, and the bearing ( 7) is a worm gear consisting of a worm wheel with a roller tooth (5), characterized in that the roller (8) having an inclined surface is installed. 제 1항에 있어서 워엄(1)의 피치 압력각과 롤러(8)경사각이 합치 되도록 하고 롤러(8)의 경사각의 꼭지점이 워엄(1)의 회전축선상에 오도록 하여 롤러(8)의 경사면 첨단부 직경과 중단부 직경의 비는 워엄의 치저 직경과 치말 직경의 비와 같게 한것을 특징으로 하는 롤러치(齒)가 달린 worm wheel로 구성된 worm gear.The inclined tip diameter of the roller 8 according to claim 1, wherein the pitch pressure angle of the worm 1 and the inclination angle of the roller 8 coincide, and the vertices of the inclination angle of the roller 8 are on the rotation axis of the worm 1. A worm gear consisting of a roller toothed worm wheel, characterized in that the ratio of the diameter of the stop and the diameter of the stop is equal to the ratio of the diameter of the worm to the diameter of the tooth.
KR1020020021067A 2002-04-17 2002-04-17 Roller worm wheel worm gearomitted KR20030082657A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2493457C2 (en) * 2011-09-19 2013-09-20 Марк Андреевич Полтавец Worm roller gear with two-roller teeth (versions)
CN113007313A (en) * 2019-06-14 2021-06-22 成都中良川工科技有限公司 High-efficient meshing worm wheel
CN113153980A (en) * 2021-05-18 2021-07-23 成都理工大学 Split type worm and drive mechanism thereof
CN113153981A (en) * 2021-05-18 2021-07-23 成都理工大学 Worm and worm gear transmission device with zero clearance
CN113175499A (en) * 2021-05-18 2021-07-27 成都理工大学 Worm wheel with spherical roller and transmission mechanism thereof
CN113175500A (en) * 2021-05-18 2021-07-27 成都理工大学 Ball roller worm gear and worm transmission device and system
CN114962554A (en) * 2022-06-07 2022-08-30 重庆大学 Precision backlash-free end face roller enveloping worm drive

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09324837A (en) * 1996-06-03 1997-12-16 Kamo Seiko Kk Worm gear reducer
JPH10169724A (en) * 1996-12-09 1998-06-26 Kubota Corp Reduction gear

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09324837A (en) * 1996-06-03 1997-12-16 Kamo Seiko Kk Worm gear reducer
JPH10169724A (en) * 1996-12-09 1998-06-26 Kubota Corp Reduction gear

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2493457C2 (en) * 2011-09-19 2013-09-20 Марк Андреевич Полтавец Worm roller gear with two-roller teeth (versions)
CN113007313A (en) * 2019-06-14 2021-06-22 成都中良川工科技有限公司 High-efficient meshing worm wheel
CN113153980A (en) * 2021-05-18 2021-07-23 成都理工大学 Split type worm and drive mechanism thereof
CN113153981A (en) * 2021-05-18 2021-07-23 成都理工大学 Worm and worm gear transmission device with zero clearance
CN113175499A (en) * 2021-05-18 2021-07-27 成都理工大学 Worm wheel with spherical roller and transmission mechanism thereof
CN113175500A (en) * 2021-05-18 2021-07-27 成都理工大学 Ball roller worm gear and worm transmission device and system
CN113175500B (en) * 2021-05-18 2022-04-08 成都理工大学 Ball roller worm gear and worm transmission device and system
CN113175499B (en) * 2021-05-18 2022-04-08 成都理工大学 Worm wheel with spherical roller and transmission mechanism thereof
CN113153980B (en) * 2021-05-18 2022-04-08 成都理工大学 Split type worm and drive mechanism thereof
CN113153981B (en) * 2021-05-18 2022-04-08 成都理工大学 Worm and worm gear transmission device with zero clearance
CN114962554A (en) * 2022-06-07 2022-08-30 重庆大学 Precision backlash-free end face roller enveloping worm drive

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