WO2016108349A1 - Coilless clutch torque ring having fatigue failure prevention structure - Google Patents

Coilless clutch torque ring having fatigue failure prevention structure Download PDF

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Publication number
WO2016108349A1
WO2016108349A1 PCT/KR2015/003439 KR2015003439W WO2016108349A1 WO 2016108349 A1 WO2016108349 A1 WO 2016108349A1 KR 2015003439 W KR2015003439 W KR 2015003439W WO 2016108349 A1 WO2016108349 A1 WO 2016108349A1
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Prior art keywords
torque ring
power
torque
pulley
ring
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PCT/KR2015/003439
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French (fr)
Korean (ko)
Inventor
최동규
고인규
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최동규
고인규
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Application filed by 최동규, 고인규 filed Critical 최동규
Priority to CN201580071595.2A priority Critical patent/CN107110245A/en
Publication of WO2016108349A1 publication Critical patent/WO2016108349A1/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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/14—Details
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/02—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings

Definitions

  • the present invention relates to a torque ring of a coilless clutch provided with a fatigue breakdown prevention structure, and more particularly, is installed between a pulley driven by a vehicle engine and a drive shaft driving an air conditioner compressor, and an abnormal torque to the compressor during power transmission. Solves the problem that the torque ring of the coilless clutch, which blocks power transmission between the pulley and the drive shaft when fatigue occurs, to prevent fatigue from being broken and absorbed in the fatigue stress structure. It relates to a torque ring of the provided coilless clutch.
  • an air conditioner compressor for a vehicle operates a pulley by the power of an engine, and the compressor is driven by the operation of the pulley, and is not an electronic clutch method for connecting and disconnecting the power of the vehicle engine between the drive shaft and the pulley of the compressor.
  • a torque limiter that is a coilless clutch.
  • the torque limiter normally transmits the power of the engine to the air conditioner compressor drive shaft to operate normally, but if the air conditioner compressor is overloaded due to an unrecoverable failure or the like, the power of the engine is no longer transmitted to the compressor. It is desired to prevent damage to the power transmission means between the engine and the compressor, noise and loss of engine power.
  • Such a prior art requires a separate shock absorber component combination in addition to the torque limiter assembly, and when the separate shock absorber is separately applied, the overall number of parts is heavy, the weight is heavy, and the assembly process is increased, resulting in a cost increase. It is impossible to configure the device integrally with the torque limiter.
  • the elastic member When limiting torque is generated, the elastic member operates in the axial direction perpendicular to the rotational direction of the pulley when the elastic member is separated from the holding part.
  • the constant torque of the limit torque is difficult to manage, and after the elastic member of the torque limiter is operated to return to the lower end in the axial direction, the height of the compressor is increased because the space between the pulley and the torque limiter is needed to prevent the collision.
  • torque limiter jaw There is between the pulley member and the connecting surface is opened and has the disadvantage of the foreign matter from the outside (dust, moisture, debris, and so on) is easy penetration by the driving performance, such as corrosion pulley rotary bearing, a drive shaft, a hub or the like inside.
  • the clutch's limit torque operating range is precise. It is easy to set up and operate accurately, the assembly can be easily combined and the torque control assembly design can be classified according to the demand of the shock absorber.
  • the control assembly and the shock absorber can be separated or integrated and applied easily, and the power is applied in the same direction as the rotational direction of the drive shaft of the pulley and the air conditioner compressor.
  • the torque ring 10 has a circumferential surface 12 formed at regular intervals so as to be perpendicular to the base surface 11, and one side of the circumferential surface 12.
  • the end is formed of the power connection portion 12-1
  • the projection 13 is formed to protrude outward on one side of the power connection portion 12-1
  • the power connection portion 12-1 is elastically inserted into the covering 20
  • the protrusion 13 is coupled to the hole 23 of the circumferential surface 26 through the portion 22, and the flange portion 14 is formed on the base surface 11 of the torque ring 10 to form a pulley ( 1) and the cover 20 is fixed to the hub 30 fixedly installed on the drive shaft 2 of the compressor, and the lower end of the power connecting portion 12-1 having the protrusion 13 of the torque ring 10 formed thereon.
  • An interference preventing protrusion 15 protruding toward the outside is formed so that the end of the circumferential surface 26 of the covering 20 comes into contact with the interference preventing protrusion 15 so that the torque ring 10 is inserted into the hub 30 when the hub 30 is inserted. Same as) To prevent the behavior is configured to maintain a gap between the covering and the torque ring.
  • This torque ring is repeatedly generated at the beginning of the power connection portion 12-1 at the base surface 11 when the torque limiter is operated in the normal rotation direction or the reverse direction, as shown in FIG. There is a problem in that fatigue stress is concentrated because it can not disperse stress and vibration.
  • torque is generated in the opposite direction to the normal rotation direction of the torque limiter during rapid acceleration and deceleration, in which rotation torque and stress are repeatedly concentrated in the stress concentration part A, thereby easily cracking and fatigue damage. This leads to.
  • the area of the flange portion 14 of the conventional torque ring has a problem that the distortion occurs in the axial direction, the deformation and noise increase.
  • the present invention has been made in order to solve the problems described above, it is intended to be configured to solve the stress concentration phenomenon for the portion where the stress is concentrated easily fatigue stress in the torque ring.
  • the power connector is configured to be elastically deformed so as not to be assembled, and to add a structure for dispersing stress in a portion where stress is concentrated.
  • the present invention is installed between the pulley which is powered by a vehicle engine and the drive shaft for driving the air conditioner compressor in order to achieve the above object to block the transmission of power between the pulley and the drive shaft when abnormal torque occurs in the compressor during power transmission.
  • a covering, a torque ring, and a hub are provided, and one side of the torque ring is coupled to the covering and the hub, and the other side of the coilless clutch is configured to engage with the pulley, and the torque ring has a circumferential surface at regular intervals so as to be perpendicular to the base surface.
  • one end of the circumferential surface is formed as a power connection portion and coupled through the insertion portion of the covering, the power connection portion 121 of the torque ring 100 is formed in a linear shape, and the power connection portion (121)
  • a bent portion 122 is formed at a predetermined angle inwardly in the circumferential direction at the start of Is inserted into the insertion portion 22 of the covering 20 without being formed, where the dispersion hole 160 is formed in the base surface 110 where the power connector 121 starts, the dispersion hole 160 starts
  • Surface 161 is formed in the same line as the power connection portion 121 is characterized in that the tensile stress acts on the power connection portion 121, by forming the length of the power connection portion 121 shorter than the circumferential surface 120
  • the base portion 110 provides a torque ring of the coilless clutch provided with a fatigue breakdown structure, characterized in that the flange portion 140 is configured to be formed wider than the slot portion 150.
  • the present invention has the effect that the stress is concentrated in the torque ring to form a dispersion hole in the beginning of the power connection portion which is easily broken, so that the stress is eliminated or dispersed, thereby preventing fatigue from being broken.
  • the power connection part is formed in a straight line and is not elastically deformed, there is an effect that stress is not concentrated at the start point of the power connection part, and the assembly is easy.
  • the base surface of the torque ring and the flange portion are formed to increase in area, thereby minimizing torsional deformation and reducing noise.
  • FIG. 1 is a perspective view showing a conventional coilless clutch.
  • Figure 2 is a front view showing a conventional coilless clutch.
  • FIG. 3 is a cross-sectional view taken along line AA of FIG. 2 showing a conventional coilless clutch.
  • FIG. 4 is an exploded perspective view showing a conventional coilless clutch.
  • FIG. 5 is a perspective view showing a torque ring of a conventional coilless clutch.
  • FIG. 6 is a plan view showing a torque ring of a conventional coilless clutch.
  • FIG. 7 is a distribution diagram showing a stress distribution acting on a torque ring of a conventional coilless clutch.
  • Figure 8 is a perspective view showing a torque ring of the coilless clutch provided with a fatigue break prevention structure of the present invention.
  • Figure 9 is a plan view showing a torque ring of the coilless clutch provided with a fatigue break prevention structure of the present invention.
  • FIG. 10 is a distribution diagram showing a stress distribution acting on a torque ring of a coilless clutch provided with a fatigue break prevention structure of the present invention.
  • the present invention is installed between the drive shaft (2) and the pulley (1) of the compressor, the torque ring 100 in the structure for blocking the transmission of power between the pulley (1) and the drive shaft (2) when abnormal torque occurs in the compressor Dispersion of stress generated in the) and characterized in that to reduce the fatigue failure of the torque ring (100).
  • the coilless clutch of the vehicle air conditioner compressor may be referred to as a torque limiter applied to the pulley.
  • the cover 20 is fixed to the hub 30 fixedly installed on the drive shaft 2 of the compressor as in the related art, and the power connecting portion 121 of the torque ring 100 divides the circumferential surface 26 of the covering 20. Intermittent between the insertion portion 22 between the inner surface and the peripheral surface 32 of the hub 30 is a structure that allows the rotational force of the pulley 1 is transmitted to the drive shaft (2) or disconnected.
  • the driving shaft 2 of the compressor rotates while the covering 20 and the hub 30 rotate.
  • a force that the driving shaft 2 does not rotate is generated and a force that the covering 20 and the hub 30 does not rotate.
  • the protrusion 130 of the torque ring 100 is separated from the hole 23 of the covering 20.
  • the covering 20 stops even when the torque ring 100 is rotated together with the pulley 1.
  • the conventional torque ring 10 is elastically deformed and inserted into the insertion part 22 of the covering 20, and the torque ring 10 is separated when a torque greater than a predetermined load is generated in the torque ring 10.
  • the drive shaft is configured to separate the power transmission of the hub and the torque ring is connected to the compression, but the stress due to the elastic deformation is always concentrated at the starting point of the power connection portion 121 of the torque ring 10 was often broken.
  • the power ring 121 is formed in a straight line so that the torque ring 100 is inserted into the inserting portion of the covering in a state in which the torque ring 100 is not elastically deformed.
  • the length of the power connector 121 may be shortened. Therefore, the area of the slot 150 may be formed smaller than before, and the area of the flange 140 may be formed wide.
  • the length of the power connecting portion 121 is formed shorter than the circumferential surface 120 so that the flange portion 140 is formed wider than the slot portion 150 in the base surface 110.
  • the protrusion 130 is formed to protrude outward from one side of the power connecting portion 121 of the torque ring 100 to enter the hole 23 formed in the circumferential surface 26 of the covering 20 to maintain the coupling force. .
  • the bending stress caused by the elastic deformation acts on the power connection part of the torque ring, so that the stress concentration part A is formed at the starting point of the power connection part. 160 to disperse the stress.
  • the power connecting portion 121 of the torque ring 100 is formed in a straight shape, and at the start of the power connecting portion 121, the bent portion 122 is formed at a predetermined angle inwardly in the circumferential direction so that the covering is not elastically deformed. It is inserted into the insertion part 22 of 20.
  • the dispersion hole 160 is formed at the base surface 110 where the power connection portion 121 starts, and the connection surface 161 at which the dispersion hole 160 starts is formed in the same line as the power connection portion 121.
  • the tensile stress is applied to the power connection portion 121 formed in a straight shape, the stress generated when the torque limiter is operated in the normal rotation or reverse direction is dispersed and removed by the dispersion hole 160 to prevent fatigue failure.
  • Figure 10 shows the stress distribution analysis of the torque ring of the present invention, it can be seen that the stress at the beginning of the power connection portion where the stress is concentrated is significantly reduced, the stress concentration region has been moved to the projection (130). Therefore, fatigue is not broken due to stress concentration, and the stress concentrated on the protrusion 130 is a hemispherical structure in which the protrusion is relatively easy to withstand stress, thereby solving the problem of fatigue failure.

Abstract

The objective of the present invention is to solve the problem of fatigue failure of a coilless clutch torque ring, which is provided between a pulley, power rotated by a vehicle engine, and a driving shaft for driving the compressor of an air conditioner, so as to block power transmission between the pulley and the driving shaft when abnormal torque is generated in the compressor during the power transmission. The present invention relates to a coilless clutch torque ring having a fatigue failure prevention structure for dispersing and absorbing bending stress generated at the starting point of the power connection part of the torque ring, the coilless clutch torque ring comprising: the power connection part (121) of the torque ring (100) formed in a straight shape; a folded part (122) formed at a predetermined angle inside the starting point of the power connection part (121) in the circumferential direction so as to be inserted into the insertion part (22) of a cover ring (20) without elastic deformation; a dispersion hole (160) formed on a base surface (110) at a location where the power connection part (121) is started; and a connection surface (161), at which the dispersion hole (160) is started, formed on the same line as that of the power connection part (121) such that tensile stress is applied to the power connection part (121).

Description

피로파괴 방지구조가 구비된 코일리스 클러치의 토오크링Torque ring of coilless clutch with fatigue break prevention structure
본 발명은 피로파괴 방지구조가 구비된 코일리스 클러치의 토오크링에 관한 것으로서, 더욱 상세하게는 차량용 엔진에 의해 동력 회전되는 풀리와 에어컨 압축기를 구동하는 구동축 사이에 설치되어 동력 전달 도중에 압축기에 이상 토오크가 발생시 상기 풀리와 구동축 사이의 동력 전달을 차단하는 코일리스 클러치의 토오크링이 피로 파괴되는 문제를 해결한 것으로 토오크링의 동력연결부 시작점에 발생하는 굽힘 응력이 분산되고 흡수되도록 한 피로파괴 방지구조가 구비된 코일리스 클러치의 토오크링에 관한 것이다.The present invention relates to a torque ring of a coilless clutch provided with a fatigue breakdown prevention structure, and more particularly, is installed between a pulley driven by a vehicle engine and a drive shaft driving an air conditioner compressor, and an abnormal torque to the compressor during power transmission. Solves the problem that the torque ring of the coilless clutch, which blocks power transmission between the pulley and the drive shaft when fatigue occurs, to prevent fatigue from being broken and absorbed in the fatigue stress structure. It relates to a torque ring of the provided coilless clutch.
일반적으로 차량용 에어컨 압축기는 엔진의 동력에 의해 풀리가 작동하고, 상기 풀리의 작동에 의해 압축기가 구동되는 바, 압축기의 구동축과 풀리 사이에는 차량 엔진의 동력을 연결하고 차단하기 위한 전자 클러치 방식이 아닌 코일리스 클러치인 토오크리미터를 채용한 압축기가 요구되고 있다.In general, an air conditioner compressor for a vehicle operates a pulley by the power of an engine, and the compressor is driven by the operation of the pulley, and is not an electronic clutch method for connecting and disconnecting the power of the vehicle engine between the drive shaft and the pulley of the compressor. There is a demand for a compressor employing a torque limiter that is a coilless clutch.
즉 상기 토오크리미터는 일반적으로 엔진의 동력을 에어컨 압축기 구동축에 전달하여 정상 구동하게 하나 만일 에어컨 압축기에 회복 불능의 고장 등으로 인하여 풀리에 과부하가 발생하면 엔진의 동력이 압축기로 더 이상 전달되지 못하도록 하여 엔진과 압축기 사이의 동력전달수단의 파손이나 소음 및 엔진 동력 손실을 방지하는 것이 요구된다.That is, the torque limiter normally transmits the power of the engine to the air conditioner compressor drive shaft to operate normally, but if the air conditioner compressor is overloaded due to an unrecoverable failure or the like, the power of the engine is no longer transmitted to the compressor. It is desired to prevent damage to the power transmission means between the engine and the compressor, noise and loss of engine power.
또한 차량 또는 엔진에 따라서 차량 운행시 운행 조건에 따라 내부 또는 외부로부터 전달되는 일정 이하의 충격, 진동, 구동부 내의 이물질 유입 등에 의하여 토오크리미터의 이상 작동 및 성능 저하가 없어야 하며 이를 방지하기 위해서는 토오크리미터 내에 자체적으로 일정 부분의 내.외부적 요인을 흡수하여 견딜 수 있도록 하며 내.외부적 요인에 의한 토오크리미터의 비정상 작동을 방지하기 위한 장치 또는 기술이 요구되고 있다.In addition, according to the vehicle or engine, there should be no abnormal operation and deterioration of the torque limiter due to the shock or vibration below a certain level transmitted from the inside or the outside depending on the driving conditions and the inflow of foreign substances in the driving part. There is a need for an apparatus or technology for absorbing a certain portion of internal and external factors to withstand and preventing abnormal operation of the torque limiter due to internal and external factors.
그래서 종래에는 국내 공개특허공보 공개번호 제10-2005-0074933호와 공개번호 제10-2006-0031529호로 공개된 기술이 개발되었다.Thus, in the related art, techniques disclosed in Korean Laid-Open Patent Publication No. 10-2005-0074933 and Publication No. 10-2006-0031529 have been developed.
이러한 종래 기술은 토오크리미터 조립체 이외에 별도의 충격흡수장치 구성 요소 결합체가 필요하며, 상기 충격 흡수 장치를 별도 분리 적용시 전체적으로 부품수가 많고 무게가 무거우며 조립 공정이 많아져 원가 상승이 발생 되며, 충격흡수장치를 토오크리미터와 일체형으로 구성이 불가능하며, 한계 토오크 발생으로 탄성부재가 유지부로부터 이탈시 작동 방향이 풀리의 회전방향의 직각인 축 방향으로 작동하기 때문에 절곡부에 응력 집중 및 부하 발생으로 리미터 한계 토오크의 일정한 관리가 어려우며, 또한 토오크리미터의 탄성부재가 작동하여 축방향 하단으로 탄성 복귀 후, 충돌을 방지 하기 위해서는 풀리와 토오크리미터 사이에 충돌 방지를 위한 공간이 필요하기 때문에 압축기 전체 높이가 커지고 조립 면적이 커지며, 토오크리미터 조립체와 풀리 연결면 사이가 개방되어 있어 풀리 회전부 베어링, 구동축, 허브 내측 등에 외부로부터 이물질(먼지, 수분 파편, 기타 등)침투가 용이하여 구동부 성능 저하, 부식 발생 등의 단점을 가지고 있다.Such a prior art requires a separate shock absorber component combination in addition to the torque limiter assembly, and when the separate shock absorber is separately applied, the overall number of parts is heavy, the weight is heavy, and the assembly process is increased, resulting in a cost increase. It is impossible to configure the device integrally with the torque limiter. When limiting torque is generated, the elastic member operates in the axial direction perpendicular to the rotational direction of the pulley when the elastic member is separated from the holding part. The constant torque of the limit torque is difficult to manage, and after the elastic member of the torque limiter is operated to return to the lower end in the axial direction, the height of the compressor is increased because the space between the pulley and the torque limiter is needed to prevent the collision. Larger assembly area, torque limiter jaw There is between the pulley member and the connecting surface is opened and has the disadvantage of the foreign matter from the outside (dust, moisture, debris, and so on) is easy penetration by the driving performance, such as corrosion pulley rotary bearing, a drive shaft, a hub or the like inside.
한편 종래에는 토오크리미터를 이탈이 아닌 파단하는 기술이 개발되었는 바, 이러한 토오크리미터를 파단하여 이상 토오크를 해제하는 방식은 토오크리미터 파단시 파단부 소재의 파편들이 비산하여 다른 장치에 영향을 주며, 이상 토오크 발생시 일정한 범위 내에서 파단부가 파단되도록 관리하는 것이 어렵고 편차가 크며, 토오크리미터 조립시 내부 크랙이 발생되거나 차량 운행시 외부적 진동, 충격에 의해 피로 응력이 누적되어 이상 토오크가 발생하지 않아도 차량 또는 엔진에 따라 토오크리미터의 파단부가 파손되는 경우가 있어 특히 진동이 심한 디젤엔진 등에 적용하는데 어려움이 있거나 적용하지 못하는 단점이 있다.Meanwhile, in the related art, a technology for breaking a torque limiter instead of leaving it has been developed, and a method of releasing abnormal torque by breaking the torque limiter affects other devices by scattering fragments of the breaking material during the breakage of the torque limiter. It is difficult to manage the breakage part within a certain range when torque is generated, and the deviation is large.In case of torque limiter assembly, internal crack occurs or fatigue stress accumulates due to external vibration and impact when driving the vehicle. According to the engine, the breakage part of the torque limiter may be broken, and thus, there is a difficulty or difficulty in applying it to a diesel engine with high vibration.
이러한 문제를 해결하기 위해 출원번호 10-2012-0121745호인 차량용 에어컨 압축기의 코일리스 클러치가 출원되었다. In order to solve this problem, a coilless clutch of an air conditioner compressor for a vehicle, which is the application number 10-2012-0121745, has been filed.
이 기술에서 클러치의 한계토오크 작동 범위를 정밀. 정확하게 설정, 작동하도록 하며 조립이 쉽게 구성 결합하고, 충격흡수장치의 적용 요구 여부에 따라 토오크제어 조립체 디자인을 구분 적용하여 수요자의 요구에 따라 선택 적용 가능한 새로운 코일리스 클러치의 구성요소를 갖추되, 토오크 제어 조립체와 충격 흡수 장치를 분리 또는 일체형으로 선택 적용이 용이하며 , 동력 전달 또는 차단시 풀리의 구동방향과 직각인 축방향으로의 차단이 아닌 풀리와 에어컨 압축기의 구동축의 회전방향과 동일한 방향으로 동력을 전달 또는 차단하며, 구성 부품수를 줄이고 무게를 저감하여 원가를 용이하게 절감하면서, 클러치 외부로부터 풀리 구동부 내로 이물질(먼지, 수분 파편, 기타등)유입을 차단하여 성능 저하를 방지하며, 파단 방식에서의 단점인 토오크리미터의 외부 진동 및 충격에 약한 단점을 해결함으로써, 에어컨 압축기의 구동축과 풀리 사이의 동력을 용이하게 전달하면서도 압축기의 고장에 맞추어서 동력 전달을 신속하게 차단할 수 있게 구성되었다.In this technology, the clutch's limit torque operating range is precise. It is easy to set up and operate accurately, the assembly can be easily combined and the torque control assembly design can be classified according to the demand of the shock absorber. The control assembly and the shock absorber can be separated or integrated and applied easily, and the power is applied in the same direction as the rotational direction of the drive shaft of the pulley and the air conditioner compressor. To reduce or reduce the number of components, reduce weight, and reduce costs, while preventing foreign substances (dust, water, debris, etc.) from the outside of the clutch into the pulley drive unit to prevent performance deterioration. Solves the weak point of external vibration and shock of torque limiter As such, while readily transmitting power between the drive shaft and the pulley on the air conditioning compressor has been configured such that it can quickly block the power transmission in conformity with the failure of the compressor.
이러한 종래의 코일리스 클러치는 도 1 내지 도 6에 도시된 바와 같이 토오크링(10)은 베이스면(11)에 수직되도록 둘레면(12)이 일정 간격으로 형성되고, 둘레면(12)의 일측 단부는 동력연결부(12-1)로 형성되며, 동력연결부(12-1)의 일측에 돌기(13)가 외측으로 돌출 형성되고, 동력연결부(12-1)가 탄력적으로 커버링(20)의 삽입부(22)를 통해 내측으로 들어가 둘레면(26)의 홀(23)에 돌기(13)가 결합되며, 토오크링(10)의 베이스면(11)에 플랜지부(14)가 형성되어 풀리(1)에 고정되고, 압축기의 구동축(2)에 고정 설치된 허브(30)에 커버링(20)이 고정 설치되되, 토오크링(10)의 돌기(13)가 형성된 동력연결부(12-1)의 하단에 외측을 향하여 돌출되는 간섭방지돌기(15)가 형성되어 간섭방지돌기(15)에 커버링(20)의 둘레면(26) 단부가 닿아 허브(30) 삽입시 토오크링(10)이 허브(30)와 같이 거동되지 않게 하여 커버링과 토오크링 사이의 간극을 유지할 수 있게 구성된다.In the conventional coilless clutch, as illustrated in FIGS. 1 to 6, the torque ring 10 has a circumferential surface 12 formed at regular intervals so as to be perpendicular to the base surface 11, and one side of the circumferential surface 12. The end is formed of the power connection portion 12-1, the projection 13 is formed to protrude outward on one side of the power connection portion 12-1, the power connection portion 12-1 is elastically inserted into the covering 20 The protrusion 13 is coupled to the hole 23 of the circumferential surface 26 through the portion 22, and the flange portion 14 is formed on the base surface 11 of the torque ring 10 to form a pulley ( 1) and the cover 20 is fixed to the hub 30 fixedly installed on the drive shaft 2 of the compressor, and the lower end of the power connecting portion 12-1 having the protrusion 13 of the torque ring 10 formed thereon. An interference preventing protrusion 15 protruding toward the outside is formed so that the end of the circumferential surface 26 of the covering 20 comes into contact with the interference preventing protrusion 15 so that the torque ring 10 is inserted into the hub 30 when the hub 30 is inserted. Same as) To prevent the behavior is configured to maintain a gap between the covering and the torque ring.
이와 같은 구조에서 동력연결부(12-1)를 탄성 변형시켜 고정할 때 동력연결부(12-1)의 시작점에 응력이 집중되는 문제가 있다. 그리고 자동차 엔진에서 발생하는 진동, 회전토오크에 의해 동력연결부 시작점에 집중적으로 크랙이 발생할 뿐만 아니라 피로 한도를 견디지 못하고 파손되는 문제가 있다.In such a structure, when the power connector 12-1 is elastically deformed and fixed, stress is concentrated at the starting point of the power connector 12-1. In addition, due to vibrations and rotational torque generated in the automobile engine, not only cracks are intensively generated at the starting point of the power connection unit, but also there is a problem of failing to endure the fatigue limit.
이와 같은 토오크링은 도 6에 도시된 바와 같이 토오크리미터가 정상 회전 방향 또는 역방향으로 작동시 베이스면(11)에서 동력연결부(12-1)의 시작부분에 반복적으로 굽힘 응력이 발생하고, 이때 발생하는 응력 및 진동을 분산하지 못해 피로응력이 집중되는 문제가 있다.This torque ring is repeatedly generated at the beginning of the power connection portion 12-1 at the base surface 11 when the torque limiter is operated in the normal rotation direction or the reverse direction, as shown in FIG. There is a problem in that fatigue stress is concentrated because it can not disperse stress and vibration.
그리고 특히 디젤엔진에서 발생되는 특징 중에서, 급가속 및 감속시 토오크리미터 정상 회전 방향의 반대 방향으로 토오크가 발생하는데 이때 회전 토오크 및 응력이 반복적으로 응력집중부(A)에 집중되어 쉽게 크랙 및 피로 파손이 이어진다.In particular, among the characteristics generated in the diesel engine, torque is generated in the opposite direction to the normal rotation direction of the torque limiter during rapid acceleration and deceleration, in which rotation torque and stress are repeatedly concentrated in the stress concentration part A, thereby easily cracking and fatigue damage. This leads to.
또한 기존의 토오크링의 플랜지부(14)의 면적이 작아 축방향으로 비틀림이 발생하고, 변형 및 소음이 증가하는 문제가 있었다.In addition, the area of the flange portion 14 of the conventional torque ring has a problem that the distortion occurs in the axial direction, the deformation and noise increase.
본 발명은 전술한 바와 같은 문제를 해결하기 위하여 안출한 것으로서, 토오크링에서 응력이 집중되어 쉽게 피로 파괴되는 부분에 대한 응력집중 현상을 해소할 수 있게 구성하고자 한다.The present invention has been made in order to solve the problems described above, it is intended to be configured to solve the stress concentration phenomenon for the portion where the stress is concentrated easily fatigue stress in the torque ring.
이를 위해 동력연결부가 탄성 변형되면서 조립되지 않게 구성하고, 응력이 집중되는 부분에 응력을 분산시키는 구조를 추가하고자 한다.To this end, the power connector is configured to be elastically deformed so as not to be assembled, and to add a structure for dispersing stress in a portion where stress is concentrated.
그리고 토오크링에서 축방향으로 비틀림 변형이 발생하는 것을 감소시키고자 한다.And to reduce the occurrence of torsional deformation in the torque ring in the axial direction.
본 발명은 전술한 목적을 달성하기 위하여 차량용 엔진에 의해 동력 회전되는 풀리와 에어컨 압축기를 구동하는 구동축 사이에 설치되어 동력 전달 도중에 압축기에 이상 토오크가 발생시 상기 풀리와 구동축 사이의 동력 전달을 차단하는 것으로 이루어지는 커버링, 토오크링, 허브가 구비되고, 토오크링의 일측부는 커버링, 허브와 결합 되고 반대 일측부는 풀리와 결합하도록 코일리스 클러치가 구성되고, 토오크링은 베이스면에 수직되도록 둘레면이 일정 간격으로 형성되며, 둘레면의 일측 단부가 동력연결부로 형성되어 커버링의 삽입부를 통해 결합되는 코일리스 클러치의 토오크링에 있어서, 토오크링(100)의 동력연결부(121)가 직선 형상으로 형성되고, 동력연결부(121) 시작시점에 원주방향 내측으로 소정의 각도로 절곡부(122)가 형성되어 탄성변형되지 않고 커버링(20)의 삽입부(22)에 삽입되며, 동력연결부(121)가 시작되는 곳 베이스면(110)에 분산공(160)이 형성되고, 분산공(160)이 시작되는 연결면(161)은 동력연결부(121)와 동일한 선상으로 형성되어 동력연결부(121)에 인장응력이 작용하도록 구성된 것을 특징으로 하며, 둘레면(120)보다 동력연결부(121)의 길이를 짧게 형성하여 베이스면(110)에서 플랜지부(140)가 슬롯부(150)보다 넓게 형성되도록 구성된 것을 특징으로 하는 피로파괴 방지구조가 구비된 코일리스 클러치의 토오크링을 제공한다.The present invention is installed between the pulley which is powered by a vehicle engine and the drive shaft for driving the air conditioner compressor in order to achieve the above object to block the transmission of power between the pulley and the drive shaft when abnormal torque occurs in the compressor during power transmission. A covering, a torque ring, and a hub are provided, and one side of the torque ring is coupled to the covering and the hub, and the other side of the coilless clutch is configured to engage with the pulley, and the torque ring has a circumferential surface at regular intervals so as to be perpendicular to the base surface. In the torque ring of the coilless clutch which is formed, one end of the circumferential surface is formed as a power connection portion and coupled through the insertion portion of the covering, the power connection portion 121 of the torque ring 100 is formed in a linear shape, and the power connection portion (121) A bent portion 122 is formed at a predetermined angle inwardly in the circumferential direction at the start of Is inserted into the insertion portion 22 of the covering 20 without being formed, where the dispersion hole 160 is formed in the base surface 110 where the power connector 121 starts, the dispersion hole 160 starts Surface 161 is formed in the same line as the power connection portion 121 is characterized in that the tensile stress acts on the power connection portion 121, by forming the length of the power connection portion 121 shorter than the circumferential surface 120 The base portion 110 provides a torque ring of the coilless clutch provided with a fatigue breakdown structure, characterized in that the flange portion 140 is configured to be formed wider than the slot portion 150.
본 발명은 토오크링에서 응력이 집중되어 쉽게 피로 파괴되는 부분인 동력연결부의 시작되는 부분에 분산공을 형성하여 응력을 제거하거나 분산되므로 피로 파괴가 되는 것이 방지되는 효과가 있다.The present invention has the effect that the stress is concentrated in the torque ring to form a dispersion hole in the beginning of the power connection portion which is easily broken, so that the stress is eliminated or dispersed, thereby preventing fatigue from being broken.
그리고 동력연결부를 직선으로 형성하여 탄성 변형되면서 조립되지 않아 동력연결부의 시작점에 응력이 집중되지 않게 되는 효과가 있을 뿐만 아니라 조립이 간편한 효과가 있다.In addition, since the power connection part is formed in a straight line and is not elastically deformed, there is an effect that stress is not concentrated at the start point of the power connection part, and the assembly is easy.
토오크링의 베이스면과 플랜지부의 면적이 증가되도록 형성되어 비틀림 변형이 최소화되고, 소음이 줄어드는 효과가 있다.The base surface of the torque ring and the flange portion are formed to increase in area, thereby minimizing torsional deformation and reducing noise.
도 1은 종래의 코일리스 클러치를 도시한 사시도.1 is a perspective view showing a conventional coilless clutch.
도 2는 종래의 코일리스 클러치를 도시한 정면도.Figure 2 is a front view showing a conventional coilless clutch.
도 3은 종래의 코일리스 클러치를 도시한 도 2의 A - A 선 단면도.3 is a cross-sectional view taken along line AA of FIG. 2 showing a conventional coilless clutch.
도 4는 종래의 코일리스 클러치를 도시한 분해 사시도.4 is an exploded perspective view showing a conventional coilless clutch.
도 5는 종래의 코일리스 클러치의 토오크링을 도시한 사시도.5 is a perspective view showing a torque ring of a conventional coilless clutch.
도 6은 종래의 코일리스 클러치의 토오크링을 도시한 평면도.6 is a plan view showing a torque ring of a conventional coilless clutch.
도 7은 종래의 코일리스 클러치의 토오크링에 작용하는 응력 분포를 도시한 분포도.7 is a distribution diagram showing a stress distribution acting on a torque ring of a conventional coilless clutch.
도 8은 본 발명의 피로파괴 방지구조가 구비된 코일리스 클러치의 토오크링을 도시한 사시도.Figure 8 is a perspective view showing a torque ring of the coilless clutch provided with a fatigue break prevention structure of the present invention.
도 9는 본 발명의 피로파괴 방지구조가 구비된 코일리스 클러치의 토오크링을 도시한 평면도.Figure 9 is a plan view showing a torque ring of the coilless clutch provided with a fatigue break prevention structure of the present invention.
도 10은 본 발명의 피로파괴 방지구조가 구비된 코일리스 클러치의 토오크링에 작용하는 응력 분포를 도시한 분포도.10 is a distribution diagram showing a stress distribution acting on a torque ring of a coilless clutch provided with a fatigue break prevention structure of the present invention.
이하 첨부된 도면을 참조하여 본 발명의 구성을 상세히 설명하면 다음과 같다.Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.
본 명세서 및 청구범위에 사용된 용어나 단어는 통상적이거나 사전적인 의미로 한정해서 해석하여서는 되지 않고, 발명자는 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다.The terms or words used in the present specification and claims should not be interpreted as being limited to the ordinary or dictionary meanings, and the inventors may appropriately define the concept of terms in order to best explain the invention of their own. Based on the principle, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.
본 발명에서 토오크링(100)을 제외한 코일리스클러치의 다른 구성은 종래와 동일한 구성을 사용하고 도면과 도번도 종래 도면을 사용하여 설명한다.The other configuration of the coilless clutch except for the torque ring 100 in the present invention uses the same configuration as in the prior art and will be described using the drawings and the drawings.
차량용 에어컨 압축기의 코일리스 클러치 차량 엔진(미도시)과 연결된 벨트(미도시)에 의해 풀리(1)와 에어컨 압축기를 구동하는 구동축(2)에 결합되어 엔진의 동력으로 압축기를 구동하는 구조에 적용되며, 본 발명은 압축기의 구동축(2)과 풀리(1) 사이에 설치되어 상기 압축기에 이상 토크가 발생시 풀리(1)와 구동축(2) 사이의 동력 전달을 차단하기 위한 구조에서 토오크링(100)에 발생하는 응력을 분산시키고 토오크링(100)의 피로 파괴를 줄여주고자 하는 것을 특징으로 한다.Coilless clutch of a vehicle air conditioner compressor coupled to a pulley 1 and a drive shaft 2 for driving an air conditioner compressor by a belt (not shown) connected to a vehicle engine (not shown) and applied to a structure for driving the compressor by the power of the engine The present invention is installed between the drive shaft (2) and the pulley (1) of the compressor, the torque ring 100 in the structure for blocking the transmission of power between the pulley (1) and the drive shaft (2) when abnormal torque occurs in the compressor Dispersion of stress generated in the) and characterized in that to reduce the fatigue failure of the torque ring (100).
이러한 차량용 에어컨 압축기의 코일리스 클러치는 풀리에 적용되는 토크리미터라 할 수 있다.The coilless clutch of the vehicle air conditioner compressor may be referred to as a torque limiter applied to the pulley.
종래와 같이 압축기의 구동축(2)에 고정 설치된 허브(30)에 커버링(20)이 고정되어 설치되고, 토오크링(100)의 동력연결부(121)가 커버링(20)의 분할 둘레면(26) 사이의 삽입부(22) 내측과 허브(30)의 둘레면(32) 사이에 단속되어 풀리(1)의 회전력이 구동축(2)로 전달되거나 단절되도록 하는 구조이다.The cover 20 is fixed to the hub 30 fixedly installed on the drive shaft 2 of the compressor as in the related art, and the power connecting portion 121 of the torque ring 100 divides the circumferential surface 26 of the covering 20. Intermittent between the insertion portion 22 between the inner surface and the peripheral surface 32 of the hub 30 is a structure that allows the rotational force of the pulley 1 is transmitted to the drive shaft (2) or disconnected.
토오크링(100)이 회전됨에 따라 커버링(20)과 허브(30)가 회전되면서 압축기의 구동축(2)이 회전된다. 이러한 상태에서 압축기의 고장 등으로 인하여 내부에 과부하가 발생되면 구동축(2)이 회전하지 않으려는 힘이 발생되면서 커버링(20)과 허브(30)가 회전하지 않으려는 힘이 발생된다.As the torque ring 100 rotates, the driving shaft 2 of the compressor rotates while the covering 20 and the hub 30 rotate. In such a state, if an overload occurs in the interior due to a failure of the compressor, a force that the driving shaft 2 does not rotate is generated and a force that the covering 20 and the hub 30 does not rotate.
따라서 커버링(20)과 토오크링(100)이 결합된 힘에 의해 일정 토오크까지 견디다가 한계 토오크를 넘어서면 토오크링(100)의 돌기(130)가 커버링(20)의 홀(23)로부터 이탈되어 토오크링(100)의 동력연결부(121)가 커버링(20)의 삽입부(22)로부터 이탈되면서 토오크링(100)이 풀리(1)와 함께 회전되더라도 커버링(20)이 정지하게 된다. Therefore, when the covering 20 and the torque ring 100 endure to a certain torque by the combined force and exceed the limit torque, the protrusion 130 of the torque ring 100 is separated from the hole 23 of the covering 20. As the power connecting portion 121 of the torque ring 100 is separated from the insertion portion 22 of the covering 20, the covering 20 stops even when the torque ring 100 is rotated together with the pulley 1.
이와 같은 구조에서 종래의 토오크링(10)의 경우 탄성 변형되어 커버링(20)의 삽입부(22)로 삽입되고, 토오크링(10)에 커버링(20)이 일정 하중 이상의 토크가 발생하면 분리되어 구동축이 연결된 허브와 압축가 연결된 토오크링의 동력전달을 분리하도록 구성되어 있지만, 토오크링(10)의 동력연결부(121)의 시작점에 항상 탄성변형으로 인한 응력이 집중되어 자주 파손되었다.In such a structure, the conventional torque ring 10 is elastically deformed and inserted into the insertion part 22 of the covering 20, and the torque ring 10 is separated when a torque greater than a predetermined load is generated in the torque ring 10. The drive shaft is configured to separate the power transmission of the hub and the torque ring is connected to the compression, but the stress due to the elastic deformation is always concentrated at the starting point of the power connection portion 121 of the torque ring 10 was often broken.
본 발명에서는 토오크링(100)이 탄성 변형되지 않은 상태에서 커버링의 삽입부에 삽입되도록 직선상으로 동력연결부(121)가 형성된다.In the present invention, the power ring 121 is formed in a straight line so that the torque ring 100 is inserted into the inserting portion of the covering in a state in which the torque ring 100 is not elastically deformed.
이때 동력연결부(121)의 탄성 변형이 필요 없게 되므로 동력연결부(121)의 길이를 짧게 형성할 수 있다. 따라서 슬롯부(150)의 면적이 종래보다 작게 형성되고 플랜지부(140)의 면적을 넓게 형성할 수 있다.At this time, since the elastic deformation of the power connector 121 is not necessary, the length of the power connector 121 may be shortened. Therefore, the area of the slot 150 may be formed smaller than before, and the area of the flange 140 may be formed wide.
즉 둘레면(120)보다 동력연결부(121)의 길이를 짧게 형성하여 베이스면(110)에서 플랜지부(140)가 슬롯부(150)보다 넓게 형성되도록 구성된다.That is, the length of the power connecting portion 121 is formed shorter than the circumferential surface 120 so that the flange portion 140 is formed wider than the slot portion 150 in the base surface 110.
풀리(1)에 고정되는 플랜지(14)의 면적이 넓어지므로 축방향으로 발생하던 비틀림 변형이 줄어들고, 소음이 감소하게 된다.Since the area of the flange 14 fixed to the pulley 1 is widened, the torsional deformation occurring in the axial direction is reduced, and the noise is reduced.
토오크링(100)의 동력연결부(121) 일측에 돌기(130)가 외측으로 돌출 형성되어 전술한 바와 같이 커버링(20)의 둘레면(26)에 형성된 홀(23)에 들어가 결합력을 유지하게 된다.The protrusion 130 is formed to protrude outward from one side of the power connecting portion 121 of the torque ring 100 to enter the hole 23 formed in the circumferential surface 26 of the covering 20 to maintain the coupling force. .
이때 종래에는 탄성 변형에 의한 굽힘응력이 토오크링의 동력연결부에 작용하여 동력연결부 시작 지점에 응력집중부(A)가 형성되었으나, 본 발명에서는 이러한 응력집중부(A)가 발생되지 않도록 분산공(160)을 형성하여 응력을 분산시킨다.At this time, in the prior art, the bending stress caused by the elastic deformation acts on the power connection part of the torque ring, so that the stress concentration part A is formed at the starting point of the power connection part. 160 to disperse the stress.
이를 위하여 토오크링(100)의 동력연결부(121)가 직선 형상으로 형성되고, 동력연결부(121) 시작시점에 원주방향 내측으로 소정의 각도로 절곡부(122)가 형성되어 탄성변형되지 않고 커버링(20)의 삽입부(22)에 삽입된다.To this end, the power connecting portion 121 of the torque ring 100 is formed in a straight shape, and at the start of the power connecting portion 121, the bent portion 122 is formed at a predetermined angle inwardly in the circumferential direction so that the covering is not elastically deformed. It is inserted into the insertion part 22 of 20.
동력연결부(121)가 시작되는 곳 베이스면(110)에 분산공(160)이 형성되는데, 분산공(160)이 시작되는 연결면(161)은 동력연결부(121)와 동일한 선상으로 형성된다.The dispersion hole 160 is formed at the base surface 110 where the power connection portion 121 starts, and the connection surface 161 at which the dispersion hole 160 starts is formed in the same line as the power connection portion 121.
따라서 직선 형상으로 형성된 동력연결부(121)에는 인장응력이 작용하고, 토오크리미터가 정상 회전 또는 역방향으로 작동시에 발생하는 응력이 분산공(160)에 의하여 분산 제거되어 피로 파손을 방지한다.Therefore, the tensile stress is applied to the power connection portion 121 formed in a straight shape, the stress generated when the torque limiter is operated in the normal rotation or reverse direction is dispersed and removed by the dispersion hole 160 to prevent fatigue failure.
도 10에 본 발명의 토오크링의 응력분포 해석도가 도시되어 있는데, 응력이 집중되던 동력연결부의 시작부분의 응력이 현저하게 줄어들었고, 응력집중부위가 돌기(130)로 이동되었음을 알 수 있다. 따라서 응력집중으로 인하여 피로 파손되지 않게 되고, 돌기(130)에 집중되는 응력은 돌기가 비교적 응력을 견디기 쉬운 반구형 구조이므로 피로 파손에 대한 문제를 해결한 것이다.Figure 10 shows the stress distribution analysis of the torque ring of the present invention, it can be seen that the stress at the beginning of the power connection portion where the stress is concentrated is significantly reduced, the stress concentration region has been moved to the projection (130). Therefore, fatigue is not broken due to stress concentration, and the stress concentrated on the protrusion 130 is a hemispherical structure in which the protrusion is relatively easy to withstand stress, thereby solving the problem of fatigue failure.

Claims (2)

  1. 차량용 엔진에 의해 동력 회전되는 풀리와 에어컨 압축기를 구동하는 구동축 사이에 설치되어 동력 전달 도중에 압축기에 이상 토오크가 발생시 상기 풀리와 구동축 사이의 동력 전달을 차단하는 것으로 이루어지는 커버링, 토오크링, 허브가 구비되고, 토오크링의 일측부는 커버링, 허브와 결합 되고 반대 일측부는 풀리와 결합하도록 코일리스 클러치가 구성되고, 토오크링은 베이스면에 수직되도록 둘레면이 일정 간격으로 형성되며, 둘레면의 일측 단부가 동력연결부로 형성되어 커버링의 삽입부를 통해 결합되는 코일리스 클러치의 토오크링에 있어서,It is installed between the pulley rotated by the engine of the vehicle and the drive shaft for driving the air conditioner compressor is provided with a covering, a torque ring, a hub consisting of blocking the transmission of power between the pulley and the drive shaft when abnormal torque occurs in the compressor during power transmission The coiling clutch is configured to couple one side of the torque ring to the cover and the hub and the opposite side to the pulley, and the torque ring has a circumferential surface formed at regular intervals so as to be perpendicular to the base surface, and one end of the circumferential surface is powered. In the torque ring of the coilless clutch which is formed as a connection portion and coupled through the insertion portion of the covering,
    토오크링(100)의 동력연결부(121)가 직선 형상으로 형성되고,The power connecting portion 121 of the torque ring 100 is formed in a straight shape,
    동력연결부(121) 시작시점에 원주방향 내측으로 소정의 각도로 절곡부(122)가 형성되어 탄성변형되지 않고 커버링(20)의 삽입부(22)에 삽입되며,At the start of the power connection portion 121, the bent portion 122 is formed at a predetermined angle in the circumferential direction and is inserted into the insertion portion 22 of the covering 20 without elastic deformation.
    동력연결부(121)가 시작되는 곳 베이스면(110)에 분산공(160)이 형성되고, 분산공(160)이 시작되는 연결면(161)은 동력연결부(121)와 동일한 선상으로 형성되어 동력연결부(121)에 인장응력이 작용하도록 구성된 것을 특징으로 하는 피로파괴 방지구조가 구비된 코일리스 클러치의 토오크링.Where the power connector 121 starts the dispersion hole 160 is formed on the base surface 110, the connection surface 161, the dispersion hole 160 starts is formed in the same line as the power connector 121 power Torque ring of the coilless clutch provided with a fatigue breakdown structure, characterized in that the tensile stress is applied to the connection portion 121.
  2. 제 1 항에 있어서,The method of claim 1,
    둘레면(120)보다 동력연결부(121)의 길이를 짧게 형성하여 베이스면(110)에서 플랜지부(140)가 슬롯부(150)보다 넓게 형성되도록 구성된 것을 특징으로 하는 피로파괴 방지구조가 구비된 코일리스 클러치의 토오크링.The fatigue connection structure is provided, characterized in that the flange portion 140 is formed wider than the slot portion 150 in the base surface 110 by forming a shorter length of the power connection portion 121 than the circumferential surface 120 Torque ring of coilless clutch.
PCT/KR2015/003439 2014-12-30 2015-04-07 Coilless clutch torque ring having fatigue failure prevention structure WO2016108349A1 (en)

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KR100613970B1 (en) * 2005-03-29 2006-08-21 주식회사 피이케이 Coilless clutch assembly in airconditioner compressor for automobile
KR20100110048A (en) * 2009-04-02 2010-10-12 최동규 A coil-less clutch device of air conditioner compressor for a car
KR101209223B1 (en) * 2010-09-07 2012-12-06 주식회사 지엔원 Apparatus for blocking the power of coilless clutch
KR20120121215A (en) * 2011-04-26 2012-11-05 주식회사 지엔원 Apparatus for blocking the power of coilless clutch
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