KR100204147B1 - Tensioner - Google Patents

Tensioner Download PDF

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Publication number
KR100204147B1
KR100204147B1 KR1019960066736A KR19960066736A KR100204147B1 KR 100204147 B1 KR100204147 B1 KR 100204147B1 KR 1019960066736 A KR1019960066736 A KR 1019960066736A KR 19960066736 A KR19960066736 A KR 19960066736A KR 100204147 B1 KR100204147 B1 KR 100204147B1
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KR
South Korea
Prior art keywords
timing belt
tension
actuating rod
pressing mechanism
vibration
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KR1019960066736A
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Korean (ko)
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KR19980048184A (en
Inventor
이봉상
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정몽규
현대자동차주식회사
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Priority to KR1019960066736A priority Critical patent/KR100204147B1/en
Publication of KR19980048184A publication Critical patent/KR19980048184A/en
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Publication of KR100204147B1 publication Critical patent/KR100204147B1/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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/10—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
    • F16H7/12—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
    • F16H7/1254—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means
    • F16H7/1263—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially straight path
    • F16H7/1272—Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley without vibration damping means where the axis of the pulley moves along a substantially straight path with means for impeding reverse motion
    • 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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H2007/0802—Actuators for final output members
    • F16H2007/0806—Compression coil springs
    • 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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
    • F16H2007/0853—Ratchets
    • F16H2007/0855—Ratchets comprising a clip member engaging with the rack teeth
    • 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
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
    • F16H2061/1208—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures with diagnostic check cycles; Monitoring of failures

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

본 발명의 목적은 타이밍 벨트의 진동을 감지하여 장력을 적정 범위내로 자동으로 유지토록 조정하는 타이밍 벨트의 자동 장력조정장치를 제공하는데 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide an automatic tension adjusting device for a timing belt that senses vibration of the timing belt and adjusts the tension to be automatically maintained within an appropriate range.

상기한 목적을 달성하기 위하여 본 발명은 타이밍 벨트의 장력조정장치에 있어서, 타이밍 벨트를 가압하는 가압기구와;In order to achieve the above object, the present invention provides a tensioning device for a timing belt, comprising: a pressing mechanism for pressing the timing belt;

타이밍 벨트의 장력을 증가 또는 감소시키도록 상기 가압기구에 접촉하며 축 방향으로 이동가능하게 마련되는 작동로드와;An actuating rod provided in contact with the pressing mechanism and movable in the axial direction to increase or decrease the tension of the timing belt;

상기 작동로드의 표면에 형성되는 래크기어와;A rack gear formed on a surface of the actuating rod;

상기 래크기어와 맞물려 정역 회전에 의해 상기 작동로드를 이동시키게 되는 피니언과;A pinion engaged with the rack gear to move the actuating rod by forward and reverse rotation;

상기 피니언을 구동하는 스텝모터와;A step motor for driving the pinion;

상기 가압기구를 통해 전달되는 타이밍벨트의 장력 변화에 따른 진동을 감지하는 진동센서와;Vibration sensor for detecting the vibration in accordance with the change in the tension of the timing belt transmitted through the pressing mechanism;

상기 진동센서가 감지한 타이밍 벨트의 장력이 기준치를 벗어난 것으로 판단될 때 상기 스텝모터를 정역구동 제어하는 전자제어유닛과; 로 구성되어 있음을 특징으로 한다.An electronic control unit which controls forward and backward driving of the step motor when it is determined that the tension of the timing belt detected by the vibration sensor is out of a reference value; It is characterized by consisting of.

Description

타이밍 벨트의 자동 장력조정장치Automatic tensioning device for timing belt

본 발명은 타이밍 벨트의 자동 장력조정장치에 관한 것이다.The present invention relates to an automatic tensioning device for a timing belt.

타이밍 벨트(20)는 도 3 에 도시하는 것과 같이 크랭크 축(21)의 회전력을 이용하여 캠축(22)을 회전시켜 주기 위한 동력 전달 수단으로서 밸브의 정확한 개폐 작용을 하기 위해서는 적정한 장력을 유지하지 아니하면 안된다.The timing belt 20 is a power transmission means for rotating the camshaft 22 using the rotational force of the crankshaft 21, as shown in FIG. Don't do it.

그러나 타이밍 벨트(20)는 엔진룸내의 고온에 노출되어 있으며 부하에 의해 연속적인 노화를 받게 되기 때문에 시간이 경과하면 늘어짐이 발생하여 장력이 저하되어지게 되며 장력이 저하되면 동력 전달 효율이 떨어지고 진동 소음이 발생할 뿐 아니라 밸브 개폐 시기에 영향을 미치게 된다. 이에 따라 타이밍 벨트(20)의 장력이 저하되면 도시된 것과 같은 장력조정장치(23)를 사용하여 늘어짐을 보상하고 있다.However, since the timing belt 20 is exposed to high temperatures in the engine room and is subjected to continuous aging by the load, the timing belt 20 causes sagging to decrease in tension, and when the tension is reduced, power transmission efficiency decreases and vibration noise is reduced. Not only does this occur, but it also affects the timing of valve opening and closing. Accordingly, when the tension of the timing belt 20 is lowered, the tension is compensated for by using the tension adjusting device 23 as shown.

그러나 도시된 것과 같은 종래의 장력조정장치(23)는 조정볼트(24)에 의한 수동 조절 방식이어서 매우 불편하며 일정한 장력을 유지토록 조정하기가 쉽지 않다는 문제점이 있었다.However, the conventional tension adjusting device 23 as shown is a very uncomfortable and manual adjustment method by the adjustment bolt 24 has a problem that it is not easy to adjust to maintain a constant tension.

이에 본 발명은 상기한 문제점을 감안하여 제안된 것으로서 그의 목적으로 하는 바는 타이밍 벨트의 진동을 감지하여 장력을 적정 범위내로 자동으로 유지토록 조정하는 타이밍 벨트의 자동 장력조정장치를 제공하는데 있다.Accordingly, the present invention has been proposed in view of the above problems, and an object thereof is to provide an automatic tension adjusting device for a timing belt that detects vibration of the timing belt and adjusts the tension to be automatically maintained within an appropriate range.

상기한 목적을 달성하기 위한 본 발명은 타이밍 벨트의 장력조정장치에 있어서, 타이밍 벨트를 가압하는 가압기구와;In order to achieve the above object, the present invention provides a tensioning device for a timing belt, comprising: a pressing mechanism for pressing the timing belt;

타이밍 벨트의 장력을 증가 또는 감소시키도록 상기 가압기구에 접촉하며 축 방향으로 이동가능하게 마련되는 작동로드와;An actuating rod provided in contact with the pressing mechanism and movable in the axial direction to increase or decrease the tension of the timing belt;

상기 작동로드의 표면에 형성되는 래크기어와;A rack gear formed on a surface of the actuating rod;

상기 래크기어와 맞물려 정역 회전에 의해 상기 작동로드를 이동시키게 되는 피니언과;A pinion engaged with the rack gear to move the actuating rod by forward and reverse rotation;

상기 피니언을 구동하는 스텝모터와;A step motor for driving the pinion;

상기 가압기구를 통해 전달되는 타이밍벨트의 장력 변화에 따른 진동을 감지하는 진동센서와;Vibration sensor for detecting the vibration in accordance with the change in the tension of the timing belt transmitted through the pressing mechanism;

상기 진동센서가 감지한 타이밍 벨트의 장력이 기준치를 벗어난 것으로 판단될 때 상기 스텝모터를 정역구동 제어하는 전자제어 유닛과; 로 구성되어 있음을 특징으로 한다.An electronic control unit which controls forward and backward driving of the step motor when it is determined that the tension of the timing belt sensed by the vibration sensor is out of a reference value; It is characterized by consisting of.

도 1 은 본 발명에 의한 타이밍 벨트의 자동장력 조정장치의 전체 구성도1 is an overall configuration diagram of an automatic tension adjusting device for a timing belt according to the present invention.

도 2 는 동상 장치의 A-A 단면도2 is a cross-sectional view of the in-phase device A-A

도 3 은 종래 타이밍 벨트의 장력조정장치3 is a tension adjusting device of a conventional timing belt

※ 도면 중 주요 부분에 대한 부호의 설명※ Explanation of the code for the main part of the drawing

1 : 타이밍 벨트 2 : 크랭크 축1: timing belt 2: crankshaft

3 : 캠축 4 : 텐셔너 아이들러3: camshaft 4: tensioner idler

5 : 텐셔너 암 6 : 가압기구5: tensioner arm 6: pressurization mechanism

7 : 힌지 8 : 작동로드7: hinge 8: working rod

9 : 케이스 10 : 래크기어9: case 10: rack gear

11 : 피니언 12 : 스텝모터11: pinion 12: step motor

13 : 진동센서 14 : 전자제어유닛13 vibration sensor 14 electronic control unit

15 : 보정용 스프링15: spring for correction

이하 본 발명의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

도 1 은 본 발명에 의한 타이밍 벨트 자동 장력조정장치의 전체 구성도이며 도 2 는 동상 장치의 A-A 단면도이다.1 is an overall configuration diagram of a timing belt automatic tensioning device according to the present invention, Figure 2 is a cross-sectional view A-A of the in-phase device.

도면중 부호 1 은 크랭크 축(2)의 회전을 캠축(3)에 전달하는 타이밍 벨트로서 타이밍 벨트(1)는 텐셔너 아이들러(4)와 텐셔너 암(5)으로 구성되는 가압기구(6)에 의해 장력이 유지되도록 가압력을 받는다.In the drawing, reference numeral 1 denotes a timing belt that transmits rotation of the crankshaft 2 to the camshaft 3, and the timing belt 1 is provided by a pressurizing mechanism 6 composed of a tensioner idler 4 and a tensioner arm 5. Pressurized to maintain tension.

상기 텐션너 암(5)은 일단이 힌지(7)로 회동가능하게 고정되고 그의 자유단은 작동로드(8)에 의해 지지되고 있다.The tensioner arm 5 is rotatably fixed at one end by a hinge 7 and its free end is supported by the actuating rod 8.

상기 작동로드(8)는 축 방향으로 이동 가능하게 케이스(9)에 수용되며 일측 표면에는 래크기어(10)가 형성되어 있다.The actuating rod 8 is accommodated in the case 9 so as to be movable in the axial direction, and a rack gear 10 is formed on one surface thereof.

상기 래크기어(10)는 피니언(11)과 맞물려지며 스텝모터(12)의 정역구동에 의해 피니언(11)을 통해 작동로드(8)가 전진하여 가압기구(6)로 하여금 벨트(1)를 가압하여 장력을 증대시키거나 또는 후퇴하여 장력을 감소시키게 된다.The rack gear 10 is engaged with the pinion 11 and the actuating rod 8 is advanced through the pinion 11 by the forward and reverse driving of the stepper motor 12 so that the pressurizing mechanism 6 causes the belt 1 to move. Press to increase the tension or retract to reduce the tension.

또한 상기 가압기구(6)를 통해 전달되는 타이밍 벨트(1)의 장력 변화를 진동으로 감지하는 진동 감지센서(13)가 가압기구(6) 또는 케이스(9)에 고정설치되며 진동센서(13)로부터 감지된 타이밍벨트(1)의 장력이 기준치, 예를 들면 통상 타이밍 벨트(1)의 장력을 10kg으로 설계하고 있으므로 이를 기준으로 하여 상하 일정 허용 범위를 벗어나는 진폭을 보이게 되면 전자제어유닛(14)이 이 신호를 받아 장력 조정 신호를 발생하게 되며 이에 따라 스텝 모터(12)는 정역구동 제어된다.In addition, a vibration sensor 13 for detecting the tension change of the timing belt 1 transmitted through the pressing mechanism 6 as a vibration is fixed to the pressing mechanism 6 or the case 9 and the vibration sensor 13 Since the tension of the timing belt 1 detected from the reference value, for example, the tension of the timing belt 1 is designed to 10 kg, the electronic control unit 14 shows an amplitude outside the predetermined allowable range up and down based on the reference. The signal is generated to generate a tension adjustment signal, and accordingly, the step motor 12 is controlled to run forward and backward.

즉 타이밍 벨트(1)가 늘어져 장력이 감소되면 진동이 심하게 발생하게 되므로 이를 감지하여 작동로드(8)를 후퇴시키는 방향으로 스텝모터(12)를 구동제어하므로써 항상 일정한 장력의 유지가 가능하게 되는 것이다.In other words, when the timing belt 1 is stretched and the tension is reduced, vibration is severely generated. Therefore, the constant tension is always maintained by controlling the driving of the step motor 12 in the direction in which the operating rod 8 is retracted. .

여기서 미설명 부호 15는 작동로드(8)를 탄발토록 케이스(9)내에 내장되는 보정용 스프링이다.Here, reference numeral 15 denotes a spring for correction in which the operating rod 8 is embedded in the casing 9.

이상과 같은 본 발명의 타이밍 벨트의 자동 장력조정장치에 의하면 타이밍 벨트의 장력 변동을 진동으로 검출한 후 이 신호를 전자제어유닛에서 신호 해석하여 스텝모터를 정역 구동하므로써 가압기구로 하여금 타이밍 벨트에의 가압력을 조정하게 되는 것에 의해서 운전 조건에 맞는 최적의 장력 상태를 유지하게 되며 소음 및 진동이 감소되고 타이밍 벨트의 수명이 증대되며 장력 조정을 위한 별도의 조치를 취할 필요가 없어 매우 편리하다.According to the automatic tension adjusting device of the timing belt according to the present invention as described above, the tension control of the timing belt is detected by vibration, and then the signal is analyzed by the electronic control unit, and the pressurizing mechanism causes the pressurizing mechanism to pressurize the timing belt by forward and reverse driving. It is very convenient to maintain the optimal tension state for the operating conditions by reducing the noise, vibration, increase the life of the timing belt, and do not need to take additional measures to adjust the tension.

그리고 또한 타이밍 벨트의 진동의 세기가 규정치 이상 떨어지면 파단으로 인식하여 점검할 수 있어 편리하다.In addition, when the vibration intensity of the timing belt falls below a prescribed value, it is convenient to recognize it as a break and inspect it.

Claims (3)

타이밍 벨트의 장력조정장치에 있어서, 타이밍 벨트를 가압하는 가압기구와;1. A tension adjusting device for a timing belt, comprising: a pressing mechanism for pressing the timing belt; 타이밍 벨트의 장력을 증가 또는 감소시키도록 상기 가압기구에 접촉하며 축 방향으로 이동가능하게 마련되는 작동로드와;An actuating rod provided in contact with the pressing mechanism and movable in the axial direction to increase or decrease the tension of the timing belt; 상기 작동로드의 표면에 형성되는 래크기어와;A rack gear formed on a surface of the actuating rod; 상기 래크기어와 맞물려 정역 회전에 의해 상기 작동로드를 이동시키게 되는 피니언과;A pinion engaged with the rack gear to move the actuating rod by forward and reverse rotation; 상기 피니언을 구동하는 스텝모터와;A step motor for driving the pinion; 상기 가압기구를 통해 전달되는 타이밍벨트의 장력 변화에 따른 진동을 감지하는 진동센서와;Vibration sensor for detecting the vibration in accordance with the change in the tension of the timing belt transmitted through the pressing mechanism; 상기 진동센서가 감지한 타이밍 벨트의 장력이 기준치를 벗어난 것으로 판단될 때 상기 스텝모터를 정역구동 제어하는 전자제어유닛과; 로 구성되어 있음을 특징으로 하는 타이밍 벨트의 자동 장력조정장치.An electronic control unit which controls forward and backward driving of the step motor when it is determined that the tension of the timing belt detected by the vibration sensor is out of a reference value; Automatic tensioning device of the timing belt, characterized in that consisting of. 제 1 항에 있어서,The method of claim 1, 상기 가압기구는 벨트를 가압하는 텐셔너 아이들러와 일단을 중심점으로 회동 조작되는 텐셔너 암으로 구성된 것을 특징으로 하는 타이밍 벨트의 자동 장력조정장치.The pressing mechanism is an automatic tensioning device for a timing belt, characterized in that the tensioner idler for pressing the belt and a tensioner arm that is pivotally operated about one end. 제 1 항에 있어서,The method of claim 1, 상기 작동로드는 그를 수용하는 케이스와의 사이에 개재된 보정용 스프링에 의해 탄발지지되는 것을 특징으로 하는 타이밍 벨트의 자동 장력조정장치.And the actuating rod is elastically supported by a correcting spring interposed between the case and the case accommodating the actuating rod.
KR1019960066736A 1996-12-17 1996-12-17 Tensioner KR100204147B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104145601A (en) * 2014-08-12 2014-11-19 徐月苗 Tension-adjustable self-propelled device for mower
KR101817885B1 (en) * 2016-04-29 2018-01-11 주식회사 에스 피 지 Mechanism for transmitting power and apparatus for supporting cameras comprising the same
CN111706653A (en) * 2020-05-11 2020-09-25 江苏大学 Optical engine transmission belt tensioning adjusting device and adjusting method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100308162B1 (en) * 1999-02-13 2001-09-24 유명천 Device for manufacturing underpaper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104145601A (en) * 2014-08-12 2014-11-19 徐月苗 Tension-adjustable self-propelled device for mower
KR101817885B1 (en) * 2016-04-29 2018-01-11 주식회사 에스 피 지 Mechanism for transmitting power and apparatus for supporting cameras comprising the same
CN111706653A (en) * 2020-05-11 2020-09-25 江苏大学 Optical engine transmission belt tensioning adjusting device and adjusting method

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