WO2019009517A1 - Structure de fixation d'engrenages d'une boîte de vitesses à actionneur moc - Google Patents

Structure de fixation d'engrenages d'une boîte de vitesses à actionneur moc Download PDF

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Publication number
WO2019009517A1
WO2019009517A1 PCT/KR2018/005981 KR2018005981W WO2019009517A1 WO 2019009517 A1 WO2019009517 A1 WO 2019009517A1 KR 2018005981 W KR2018005981 W KR 2018005981W WO 2019009517 A1 WO2019009517 A1 WO 2019009517A1
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WO
WIPO (PCT)
Prior art keywords
gear
carrier
guide body
gear box
stage planetary
Prior art date
Application number
PCT/KR2018/005981
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English (en)
Korean (ko)
Inventor
강석우
이인행
Original Assignee
(주)에이테크오토모티브
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Publication of WO2019009517A1 publication Critical patent/WO2019009517A1/fr

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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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • 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
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/24—Electric or magnetic using motors
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/44—Mechanical mechanisms transmitting rotation
    • F16D2125/46—Rotating members in mutual engagement
    • F16D2125/50—Rotating members in mutual engagement with parallel non-stationary axes, e.g. planetary gearing

Definitions

  • the present invention relates to a gear fixing structure of a motor on caliper (MOC) actuator gear box, and more particularly to a gear fixing structure of an MOC actuator gear box that maintains concentricity of gears installed therein, .
  • MOC motor on caliper
  • Conventional brake cable type control parking brakes have problems such as constraints on the use of the vehicle interior space due to the use of hand levers and cables, lowering in safety, complicated assembling structure, and the like, and have recently been operated by electrical signals
  • Many electronic parking brake devices that automatically operate the parking brake by motor drive have been developed.
  • Such an electronic parking brake is used to maintain the parking state of the vehicle by using the braking force generated from the actuator in accordance with the braking operation of the driver, and is a system Lt; / RTI >
  • the drive gear 10 is rotated by the rotational force of the drive motor 15 so that the idle gear 20 and the idle gear 20 engaged with the drive gear 10 rotate together, 20 and the final gear 30 meshing with each other simultaneously rotate.
  • the final gear 30 includes a first carrier 40 and a second carrier 60, which are sequentially disposed at the lower portion, and a plurality of first and second carriers 40 and 60, respectively, provided on the first and second carriers 40 and 60, So that the planetary gear 50 and the two-stage planetary gear 70 are rotated together.
  • the first stage planetary gear 50 and the second stage planetary gear 70 are rotated while engaged with the first carrier 40, the second carrier 60 and the ring gear 80, respectively.
  • an input shaft (not shown) of the caliper 90 connected to the second carrier 60 is rotated to operate a brake pad (not shown) not shown.
  • the idle shaft 25 made of steel supporting the idle gear 20 is inserted into the gear box made of plastic as shown in Fig. 1 by inserting it at a depth less than the outer diameter of the idle shaft, This is because the idle shaft tilts due to loosening of the inserted state during the cyclic load or durability test for driving the caliper, resulting in a problem in engagement (engagement) of the drive gear and the final gear.
  • the idle shaft can not maintain a perpendicularity orthogonal to the gear box due to loosening of the press-in state
  • the first carrier can also maintain a perpendicularity between the final gear and the second carrier at right angles to both gears So that the eccentricity of the idle gear and the first stage planetary gears is displaced, resulting in eccentricity, resulting in noise, vibration and uneven wear due to friction between the gear teeth.
  • Japanese Patent No. 10-1592825 discloses a structure in which a single-stage carrier assembly is coupled to a final gear using a center shaft.
  • the above technology is a structure in which a final gear and a single-stage carrier assembly are modularized
  • the problem of maintaining the concentricity of the gears and the perpendicularity of the gear shaft can not be solved at all.
  • the present invention has been made in order to solve the above-mentioned problems and technical prejudices, and it is an object of the present invention to provide an MOC actuator, which is capable of maintaining constant the concentricity of the idle gear and the planetary gears, And an object of the present invention is to provide a gear fixing structure of an MOC actuator gear box which is capable of originally blocking the generation of noise, vibration and uneven wear between teeth surfaces.
  • the gear fixing structure of the MOC actuator gear box of the present invention includes a gear box having a cover for closing the mounting space, the cover having a mounting space in which gears are installed,
  • a primary drive unit including a drive gear, an idle gear and a final gear installed in the installation space of the gear box;
  • a driving motor installed in the gear box in a state of being coupled with the driving gear to rotate the driving gear;
  • a first carrier that rotates together with a plurality of single-stage planetary gears that support the final gear and are engaged with final gears under the final gear, and a second carrier disposed below the first carrier to support the first carrier, Stage planetary gear meshed with the carrier gear of the first planetary gear set, the first carrier being provided in the installation space in a state of accommodating the first and second carriers,
  • a second drive unit comprising a ring gear;
  • a guide bush which receives and supports the circumferential surface of the first carrier in a state of being engaged with the ring gear, and maintains the concentricity and the per
  • the guide bush includes a ring-shaped guide body having a support portion inwardly; And a plurality of engaging projections formed on an outer circumferential surface of the guide body and engaging with the inside of the ring gear so that the guide body can be disposed at the position of the first carrier.
  • the guide bush may include: a guide body having a polygonal support portion forming an oil groove in a line contact with a circumferential surface of the first carrier inwardly; And a plurality of coupling protrusions formed on an outer circumferential surface of the guide body and mating with the inside of the ring gear so that the guide body can be disposed at the position of the first carrier.
  • the guide body may include a first guide body and a second guide body coupled to each other in a corresponding shape.
  • a plurality of coupling protrusions are formed on any one of the body facing the first guide body and the second guide body, and a coupling groove is formed on the other body so that the coupling protrusion is press-fitted.
  • the first guide body and the second guide body may have a first extension It is preferable that the jaw and the second extending step are further formed.
  • the guide bushes are made of any one of engineer plastic or copper (Cu).
  • the idle gear is supported by an idle shaft, and the idle shaft is extended so as to be received by a seating groove formed in a brush card which fixes the driving motor to the gear box.
  • the gear fixing structure of the MOC actuator gear box of the present invention having the above configuration, the concentricity of the idle gear and the planetary gears installed in the gear box of the MOC actuator and the perpendicularity of the gear shafts are maintained at all times So that the meshing between the gears can be uniformly performed without eccentricity, thereby preventing noise, vibration, and wear of the gear teeth from occurring.
  • FIG. 1 is a cross-sectional view showing the structure of a conventional MOC actuator gear box
  • FIG. 2 is a cross-sectional view showing the gear fixing structure of the MOC actuator gear box according to the present invention
  • FIG. 3 is a perspective view and a plan view showing an embodiment of the guide bush in the configuration of FIG. 2,
  • FIG. 4 and 5 are a perspective view and a plan view showing another embodiment of the guide bush in the configuration of FIG. 2,
  • FIG. 6 and 7 are an exploded perspective view showing another embodiment of the guide body in the configuration of FIG. 4 and a sectional view of the main part showing the installed state.
  • FIG. 3 is a perspective view and a plan view showing an embodiment of a guide bush in the configuration of FIG. 2, and FIGS. 4 and 5 are cross-sectional views of the gear box of the MOC actuator gear box of FIG.
  • FIGS. 6 and 7 are an exploded perspective view showing another embodiment of the guide bush in the construction of FIG. 2 and a cross-sectional view of the main part showing the installed state of the guide bush.
  • the MOC actuator gear box 110 of the present invention includes a cover 111 having an installation space 112 in which gears are installed, and which closes the installation space 112 A gear box 110;
  • a primary drive unit 120 including a drive gear 121, an idle gear 122 and a final gear 124 installed in the installation space 112 of the gear box 110;
  • a driving motor 130 installed on the gear box 110 in a state of being coupled with the driving gear 121 to rotate the driving gear 121;
  • a first carrier 141 that supports the final gear 124 and rotates together with a plurality of single stage planetary gears 142 engaged with a final gear 125 below the final gear 124,
  • Stage planetary gear 146 that is disposed below the first carrier 141 and supports the first carrier 141 and meshed with the carrier shoe 144 under the first carrier 141,
  • the main feature of the present invention is that the guide bushes 150 and 160 disposed inside the ring gear 147 support the circumferential surface of the first carrier 141, (The concentricity and the right angle are maintained), so that the first-stage planetary gear 142 can rotate without being eccentrically rotated when the first-stage planetary gear 142 rotates on the ring gear 147.
  • the gear box 110 has an installation space 112 in which a plurality of gears can be installed in a state where the plurality of gears are meshed, and the overall shape of the gear box 110 can be changed according to the shape of the installation space 112.
  • the installation space 112 may have a specific shape depending on the size or arrangement of the gears.
  • a cover 111 is provided at the upper portion of the gear box 110 in order to close the installation space 112 and shut it off from the outside.
  • a primary drive unit 120 and a secondary drive unit 140 for driving the caliper 90 are installed in the installation space 112 of the upper gear box 110.
  • the primary drive unit 120 is sequentially arranged on the upper side of the installation space 112 in the drawing of FIG. 2 while being meshed with the drive gear 121, the idle gear 122 and the final gear 124, So that the rotational force of the driving gear 121 is transmitted to the final gear 124 through the idle gear 122.
  • the driving motor 130 is installed on the lower left side of the gear box 110, and rotates the driving gear 121 in a state where the shaft of the driving motor 130 is engaged with the driving gear 121 .
  • the rotation of the driving gear 121 causes the idle gear 122 and the final gear 124 to rotate together.
  • the idle gear 122 of the primary drive unit 120 is supported by an idle shaft 123 passing through the idle gear 122 to rotate the drive motor 130 and the final gear 124, Respectively.
  • the idle shaft 123 has a length longer than the conventional length so as to be accommodated in the seating groove 133 formed in the brush card 132 that fixes the driving motor 130 to the gear box 110 desirable.
  • the elongated length of the idle shaft 123 is pressed through the gear box 110 and into the seating groove 133 of the brush card 132, So that the perpendicularity of the idle shaft 123 can be maintained even if the hole (not shown) of the gear box 110 through which the idler shaft 123 passes is loosened.
  • the idle gear 122 is engaged eccentrically with the drive gear 121 and the final gear 124 while maintaining the concentricity by maintaining the right angle of the idle shaft 123.
  • the extended length of the idle shaft 123 may be inserted into the cover 111 disposed at the upper portion of the cover 111. This increases the volume of the MOC actuator gear box 110 due to the increase in the thickness of the cover 111. [ Therefore, it is difficult to approach the conventional electronic parking brake system structure because of the miniaturization of the electronic parking brake system structure.
  • the secondary drive unit 140 supports the final gear 124 at the lower part of the final gear 124 and drives the final gear 124 to rotate.
  • the first drive unit 140 drives the first stage planetary gear 142 And a second carrier 145 having a two-stage planetary gear 146, and a ring gear 147.
  • the first carrier 141 has a two-
  • the first carrier 141 is disposed in the lower part of the final gear 124 in a circular shape and supports the final gear 124.
  • Three or four first stage planetary gears 142 are disposed on the plate surface facing the final gear 124 And is rotatably installed.
  • the first stage planetary gears 142 engage with the final gear 125 protruding from the bottom surface of the final gear 124.
  • the first carrier 141 Since the first carrier 141 is in a state in which the rotation shaft 143 extending upward and downward is rotatably inserted into the final gear 124 and the second carrier to be described later, And is rotatably coupled to the second carrier 145, which will be described later, on the lower side.
  • the rotation shaft 143 of the first carrier 141 is engaged with the engagement hole (not shown) of the final gear 124 and the second carrier 145 while maintaining a gap of 0.04 to 0.06 mm.
  • the second carrier 145 is disposed under the first carrier 141 and supports the first carrier 141.
  • Three or four second planetary gears 146 are disposed on the surface of the first carrier 141 facing the first carrier 141 And is rotatably installed.
  • the two-stage planetary gears 146 are in engagement with the carrier horses 144 protruding from the lower surface of the first carrier 141.
  • the second carrier 145 is rotatably mounted on a ring gear 147 described later.
  • the ring gear 147 is press-fitted into the installation space 112 of the gear box 110 while receiving the first carrier 141 and the second carrier 145 and is fixed inward by a plurality of first- 142 and the two-stage planetary gear 146, respectively.
  • the second-stage driving unit 140 rotates together with the first-stage planetary gears 142 and the first carrier 141 that have received the rotation of the final gear 124,
  • the two-stage planetary gears 146 and the second carrier 145 are rotated together by the rotation of the first carrier 141 to rotate the input shaft (not shown) of the connected caliper 90.
  • the brake pad (not shown) is actuated by driving the caliper 90.
  • the guide bush 150 supports the circumferential surface of the circular first carrier 141 in a state of being engaged with the inside of the ring gear 147, Thereby maintaining the concentricity and the perpendicularity of the carrier 141.
  • the guide bush 150 includes a ring-shaped guide body 151 having a support portion 152 inwardly and a guide body 151 formed on the outer circumferential surface of the guide body 151 and having a guide body 151, And a plurality of engaging projections 153 engaging with the inside of the ring gear 147 so as to be disposed at a position of the ring gear 147.
  • the guide body 151 preferably has at least a height corresponding to the width of the circumference of the first carrier 141.
  • the support portion 152 is formed in the guide body 151 at a height equal to the height of the guide body 151 in a circular shape having a diameter corresponding to the diameter of the first carrier 141.
  • the support portion 152 stably supports the entire circumferential surface of the first carrier 141 received and supported therein.
  • the plurality of coupling protrusions 153 are engaged with the inside of the ring gear 147, so that the guided body can be kept horizontal. That is, the first carrier 141 is supported in a state in which the guide bush 150 is kept horizontal.
  • the guide bushes 150 and 160 are preferably made of any one of engineer plastic or copper (Cu).
  • copper is used as the material, it may be used as an oil-less bearing, which is an oil-free bush type.
  • the guide bush 150 as described above supports the first carrier 141 in a state where it is disposed on the ring gear 147 and maintains the concentricity and the perpendicularity so that the inclination of the first carrier 141 is originally blocked , The concentricity of the first carrier 141 first stage planetary gears 142 can also be maintained.
  • the guide bush 160 of another embodiment has a polygonal support portion 162 forming an oil groove H while making line contact with the circumferential surface of the first carrier 141 inwardly
  • a plurality of coupling protrusions 161 formed on the outer circumferential surface of the guide body 161 and engaged with the inside of the ring gear 147 so that the guide body 161 can be disposed at the position of the first carrier 141, (164).
  • guide bush 160 of another embodiment will be described only in terms of a structure that differs from the embodiment in order to prevent confusion of explanation.
  • the polygonal support portion 162 is formed by a plurality of vertical surfaces 163 formed vertically along the inner circumferential surface of the guide body 161 as shown.
  • the vertical surfaces 163 maintain the concentricity of the first carrier 141 while making line contact with the circumferential surface at a plurality of positions along the circumference of the first carrier 141.
  • the line contact of the vertical surface 163 is of course possible because the guide body 161 maintains a predetermined width.
  • the oil groove H is a space in which the oil can be filled in order to minimize the friction generated on the circumferential surface of the first carrier 141 and the contact portion of the vertical surface 163, 1 is a space formed between a part of the peripheral surface when the peripheral surface of the carrier 141 is supported and the vertical surface 163 and the vertical surface 163.
  • the guide body 161 may include a first guide body 165 and a second guide body 167 that are coupled to each other in a shape corresponding to each other.
  • the first guide body 165 and the second guide body 167 form a single body through mutual coupling.
  • one of the first guide body 165 and the second guide body 167 is provided with a plurality of engaging projections And an engaging groove 165a is formed in the other body so that the engaging protrusion 167a is press-engaged with the engaging protrusion 167a.
  • the coupling protrusion 167a is formed in the second guide body 167 and the coupling groove 165a is formed in the first guide body 165 in this embodiment, its position and shape are not limited.
  • first guide body 165 and the second guide body 167 may be coupled through various coupling methods.
  • the first extension tabs 165b and the second extension tabs 167b may be further formed to cover portions of the upper and lower surfaces of the first and second cover plates 141 and 141, respectively.
  • the first guide body 165 and the second guide body 167 are formed in a state in which the first carrier 141 is accommodated in the first extended body 165 and the second extended body 167b, 1 carrier 141 to cover the circumferential upper and lower surface portions of the carrier 141 so as to prevent leakage of the oil filled in the oil groove H.
  • the gear fixing structure of the MOC actuator gear box of the present invention ensures that the concentricity of the idle gear and the planetary gears installed in the gear box of the MOC actuator and the perpendicularity of the gear shafts are constantly maintained So that the coupling between the gears can be uniformly performed without eccentricity, thereby preventing noise, vibration and uneven wear between the gear teeth.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Retarders (AREA)

Abstract

La présente invention concerne une structure qui permet de fixer des engrenages d'une boîte de vitesses à actionneur de moteur d'étrier (MOC), la structure empêchant le mauvais alignement de la concentricité et de la perpendicularité des engrenages disposés à l'intérieur de la boîte de vitesses à actionneur MOC et comprenant : la boîte de vitesses ayant un espace de montage dans lequel les engrenages sont montés et ayant un couvercle permettant de fermer l'espace de montage ; une partie d'entraînement primaire comprenant une roue menante, un pignon fou et un engrenage final qui sont disposés dans l'espace de montage de la boîte de vitesses ; un moteur d'entraînement disposé dans la boîte de vitesses de façon à faire tourner la roue menante dans un état dans lequel le moteur est relié à la roue menante ; une partie d'entraînement secondaire comprenant un premier support portant l'engrenage final et tournant avec une pluralité d'engrenages planétaires de premier étage s'engrenant avec un engrenage inférieur final au niveau de la partie inférieure de l'engrenage final, un second support disposé au niveau de la partie inférieure du premier support de manière à porter le premier support et tournant avec une pluralité d'engrenages planétaires de deuxième étage s'engrenant avec un engrenage inférieur de support au niveau de la partie inférieure du premier support, et une couronne de train planétaire qui est disposée dans l'espace de montage dans un état dans lequel le premier et le second support sont logés à l'intérieur de ladite couronne, et dont l'intérieur s'engrène avec le train planétaire de premier étage et le train planétaire de deuxième étage ; une douille de guidage permettant de recevoir une surface circonférentielle diamétrale du premier support dans un état dans lequel la douille de guidage vient en prise avec la couronne de train planétaire, afin de la porter et de maintenir la concentricité et la perpendicularité du premier support.
PCT/KR2018/005981 2017-07-05 2018-05-25 Structure de fixation d'engrenages d'une boîte de vitesses à actionneur moc WO2019009517A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170085323A KR101779830B1 (ko) 2017-07-05 2017-07-05 Moc 액츄에이터 기어박스의 기어 고정구조
KR10-2017-0085323 2017-07-05

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Cited By (1)

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CN111750008A (zh) * 2019-03-28 2020-10-09 启洋电机株式会社 具有双重齿轮的电子式驻车制动执行器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102417542B1 (ko) 2017-11-30 2022-07-05 현대자동차주식회사 전자식 주차 브레이크의 esc 협조제어 제동 방법
KR101887880B1 (ko) 2018-01-22 2018-08-10 (주)에이테크오토모티브 Epb 액츄에이터 기어박스의 구조
KR102111343B1 (ko) * 2018-09-21 2020-06-04 (주)늘푸른나무 김 세척수 재활용 장치

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KR20100074730A (ko) * 2008-12-24 2010-07-02 전자부품연구원 감속기 일체형 모터
KR101304086B1 (ko) * 2012-09-20 2013-09-05 신중호 2축 동시회전형 감속기
JP2014214799A (ja) * 2013-04-25 2014-11-17 本田技研工業株式会社 遊星歯車機構および遊星歯車機構の組み立て方法
KR20150019239A (ko) * 2013-08-13 2015-02-25 주식회사 만도 유성 기어 장치
KR20170035156A (ko) * 2015-09-22 2017-03-30 주식회사 만도 전자식 디스크 브레이크

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Publication number Priority date Publication date Assignee Title
KR20100074730A (ko) * 2008-12-24 2010-07-02 전자부품연구원 감속기 일체형 모터
KR101304086B1 (ko) * 2012-09-20 2013-09-05 신중호 2축 동시회전형 감속기
JP2014214799A (ja) * 2013-04-25 2014-11-17 本田技研工業株式会社 遊星歯車機構および遊星歯車機構の組み立て方法
KR20150019239A (ko) * 2013-08-13 2015-02-25 주식회사 만도 유성 기어 장치
KR20170035156A (ko) * 2015-09-22 2017-03-30 주식회사 만도 전자식 디스크 브레이크

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111750008A (zh) * 2019-03-28 2020-10-09 启洋电机株式会社 具有双重齿轮的电子式驻车制动执行器
CN111750008B (zh) * 2019-03-28 2022-04-08 启洋电机株式会社 具有双重齿轮的电子式驻车制动执行器

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