KR20130008356A - In-wheel working device - Google Patents

In-wheel working device Download PDF

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Publication number
KR20130008356A
KR20130008356A KR1020110069059A KR20110069059A KR20130008356A KR 20130008356 A KR20130008356 A KR 20130008356A KR 1020110069059 A KR1020110069059 A KR 1020110069059A KR 20110069059 A KR20110069059 A KR 20110069059A KR 20130008356 A KR20130008356 A KR 20130008356A
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KR
South Korea
Prior art keywords
carrier
hub
inner ring
gear
ring
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KR1020110069059A
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Korean (ko)
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KR101757317B1 (en
Inventor
신경호
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현대모비스 주식회사
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Priority to KR1020110069059A priority Critical patent/KR101757317B1/en
Priority to CN201210238788.0A priority patent/CN102874096B/en
Publication of KR20130008356A publication Critical patent/KR20130008356A/en
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Publication of KR101757317B1 publication Critical patent/KR101757317B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K7/0007—Disposition of motor in, or adjacent to, traction wheel the motor being electric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
    • B60K17/043—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
    • B60K17/046—Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel with planetary gearing 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
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0046—Disposition of motor in, or adjacent to, traction wheel the motor moving together with the vehicle body, i.e. moving independently from the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K7/00—Disposition of motor in, or adjacent to, traction wheel
    • B60K2007/0092—Disposition of motor in, or adjacent to, traction wheel the motor axle being coaxial to the wheel axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
    • 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
    • F16H1/32—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
    • F16H2001/326—Toothed gearings for conveying rotary motion with gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear comprising a carrier with linear guiding means guiding at least one orbital gear
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

PURPOSE: An in-wheel driving device is provided to miniaturize the wheel size by minimizing a space where a decelerator is installed. CONSTITUTION: An in-wheel driving device(1) comprises a motor part(10), a deceleration part(2), a hub outer ring(30), and an adjustable nut(60). The motor part generates power. The deceleration part comprises a sun gear(22), a planetary gear(24), and a carrier(26). The hub outer ring is installed into the shape of the covering the outside of the deceleration part. A hub inner ring is rotatably installed in the hub outer ring and is connected to the carrier to receive the power. The adjustable nut restricts the movement of the carrier moving along the hub inner ring.

Description

인휠 구동장치{IN-WHEEL WORKING DEVICE}In-wheel drive {IN-WHEEL WORKING DEVICE}

본 발명은 인휠 구동장치에 관한 것으로서, 보다 상세하게는 감속기가 설치되는 공간을 최소화하여 휠 사이즈를 소형화할 수 있는 인휠 구동장치에 관한 것이다.
The present invention relates to an in-wheel drive device, and more particularly, to an in-wheel drive device that can reduce the wheel size by minimizing the space in which the reducer is installed.

일반적으로, 인휠 구동장치는 전기 자동차와 같이 전기를 동력원으로 사용하는 자동차에 사용되는 기술로서, 가솔린 또는 디젤 자동차에서의 엔진과 미션 및 구동축을 통한 동력 전달에 의해 바퀴가 회전 구동하는 방식과는 달리, 좌우의 구동륜 또는 좌우 및 전후 4개의 구동륜 내부에 배치되는 모터에 의해 동력이 휠에 직접 전달되는 기술이다.In general, in-wheel drive is a technology used in a vehicle that uses electricity as a power source, such as an electric vehicle, unlike a method in which wheels are driven rotationally by transmission of power through an engine and a mission and a drive shaft in a gasoline or diesel vehicle. This is a technology in which power is directly transmitted to a wheel by a motor disposed inside the left and right driving wheels or the four driving wheels.

본 발명의 배경기술은 대한민국 공개특허공보 2011-0040459호(2011.04.20 공개, 발명의 명칭: 윈휠 시스템용 차륜구동장치)에 개시되어 있다.
BACKGROUND ART [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 2011-0040459 (published on Apr. 20, 2011, entitled " Wheel Drive System for Winwheel System).

종래의 인휠 구동장치는 모터반경을 크게 하여 감속기 없이 구동토크의 증가가 이루어지지만, 이로 인해 휠 사이즈가 커지는 문제점이 있다. 따라서, 이를 개선할 필요성이 요청된다.In the conventional in-wheel drive device, the driving radius is increased without increasing the motor radius by increasing the motor radius, but this causes a problem in that the wheel size becomes large. Therefore, there is a need to improve this.

본 발명은 상기와 같은 문제점을 개선하기 위해 안출된 것으로서, 감속기가 설치되는 공간을 최소화하여 휠 사이즈를 소형화할 수 있는 인휠 구동장치를 제공하는데 그 목적이 있다.
An object of the present invention is to provide an in-wheel driving apparatus that can be miniaturized by minimizing a space in which a reduction gear is installed.

본 발명에 따른 인휠 구동장치는: 동력이 발생되는 모터부와, 모터부의 구동축과 연결되어 회전되는 썬기어와 썬기어의 둘레를 따라 회전되는 유성기어와 유성기어와 같이 회전되는 캐리어를 포함하는 감속부와, 감속부의 외측을 감싸는 형상으로 설치되며 유성기어와 맞물리는 링기어를 내측에 구비하는 허브외륜과, 허브외륜의 내측에 회전 가능하게 설치되며 캐리어와 연결되어 동력을 전달받는 허브내륜 및 허브내륜을 따라 이동되는 캐리어의 이동을 구속하는 조절너트를 포함한다.An in-wheel drive device according to the present invention includes: a reduction gear including a motor unit for generating power, a sun gear rotated in connection with a drive shaft of the motor unit, and a planet gear rotated along the circumference of the sun gear and a carrier rotated together with the planetary gear. Hub outer ring which is installed in a shape surrounding the outer part of the deceleration part and has a ring gear engaged with the planetary gear, and is rotatably installed in the inner side of the hub outer ring, and is connected to a carrier and receives a hub inner ring and hub. And an adjusting nut for restraining the movement of the carrier moved along the inner ring.

또한 본 발명은, 허브외륜의 내측에 링기어가 일체로 형성되는 것이 바람직하다.In the present invention, it is preferable that the ring gear is integrally formed inside the hub outer ring.

또한 허브외륜은 모터부에 고정되는 것이 바람직하다.In addition, the hub outer ring is preferably fixed to the motor unit.

또한 허브내륜과 캐리어는 스플라인 결합되어 동력이 전달되는 것이 바람직하다.In addition, the hub inner ring and the carrier is preferably spline-coupled to transmit power.

또한 허브내륜은, 캐리어의 외측을 감싸며 설치되는 지지몸체 및 지지몸체에서 절곡되어 휠부재에 고정되는 절곡부재를 포함하는 것이 바람직하다.In addition, the hub inner ring preferably includes a support body that is installed to surround the outside of the carrier and a bending member that is bent from the support body and fixed to the wheel member.

또한 조절너트는, 허브내륜의 외측으로 돌출된 캐리어에 체결되는 것이 바람직하다.
In addition, the adjustment nut is preferably fastened to the carrier protruding to the outside of the hub inner ring.

본 발명에 따른 인휠 구동장치는, 감속부와 허브외륜 및 허브내륜이 일체화되어 제품이 소형화되므로, 다른 부품과의 간섭을 회피할 수 있으며, 휠 사이즈를 소형화할 수 있다.In the in-wheel driving device according to the present invention, since the reduction unit, the hub outer ring and the hub inner ring are integrated, the product can be miniaturized, so that interference with other parts can be avoided and the wheel size can be reduced.

또한 본 발명은, 허브베어링의 예압작업과 캐리어의 조립작업이 동시에 이루어지므로, 조립 작업에 따른 생산성을 향상시킬 수 있다.In addition, the present invention, since the pre-loading operation of the hub bearing and the assembly operation of the carrier is performed at the same time, it is possible to improve the productivity according to the assembly operation.

또한 본 발명은, 링기어가 허브외륜에 일체로 형성되어 부품수가 감소하므로, 생산원가를 절감할 수 있다.
In addition, in the present invention, since the ring gear is integrally formed on the hub outer ring to reduce the number of parts, the production cost can be reduced.

도 1은 본 발명의 일 실시예에 따른 인휠 구동장치를 개략적으로 도시한 단면도이다.
도 2는 도 1에 도시된 A 부분을 확대 도시한 단면도이다.
도 3은 본 발명의 일 실시예에 따른 허브내륜과 캐리어를 분리 도시한 단면도이다.1 is a cross-sectional view schematically showing an in-wheel drive apparatus according to an embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view of part A of FIG. 1.
Figure 3 is a cross-sectional view showing the separation of the hub inner ring and the carrier according to an embodiment of the present invention.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 인휠 구동장치의 일 실시예를 설명한다. 설명의 편의를 위해 전기자동차에 사용되는 인휠 구동장치를 예로 들어 설명한다. 이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.
Hereinafter, with reference to the accompanying drawings will be described an embodiment of the in-wheel drive apparatus according to the present invention. For convenience of description, an in-wheel drive device used in an electric vehicle will be described as an example. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

도 1은 본 발명의 일 실시예에 따른 인휠 구동장치를 개략적으로 도시한 단면도이며, 도 2는 도 1에 도시된 A 부분을 확대 도시한 단면도이며, 도 3은 본 발명의 일 실시예에 따른 허브내륜과 캐리어를 분리 도시한 단면도이다.1 is a cross-sectional view schematically showing an in-wheel drive device according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view of a portion A shown in FIG. 1, and FIG. 3 is according to an embodiment of the present invention. It is sectional drawing which shows the hub inner ring and carrier separately.

도 1과 도 2에 도시된 바와 같이, 본 발명의 일 실시예에 따른 인휠 구동장치(1)는, 동력이 발생되는 모터부(10)와, 모터부(10)의 구동축(19)과 연결되어 회전되는 썬기어(22)와 썬기어(22)의 둘레를 따라 회전되는 유성기어(24)와 유성기어(24)와 같이 회전되는 캐리어(26)를 포함하는 감속부(20)를 구비한다.As shown in FIG. 1 and FIG. 2, the in-wheel driving apparatus 1 according to the exemplary embodiment of the present invention is connected to a motor unit 10 in which power is generated and a drive shaft 19 of the motor unit 10. And a reduction gear 20 including a sun gear 22 that is rotated and a planetary gear 24 that rotates along the circumference of the sun gear 22 and a carrier 26 that rotates together with the planetary gear 24. .

이러한 감속부(20)의 외측을 감싸는 형상으로 허브외륜(30)이 설치되며, 이러한 허브외륜(30)의 내측에는 유성기어(24)와 맞물리는 링기어(32)가 구비된다.The hub outer ring 30 is installed in a shape surrounding the outside of the reduction unit 20, and the ring gear 32 meshing with the planetary gear 24 is provided inside the hub outer ring 30.

허브외륜(30)의 내측에 회전 가능하게 설치되는 허브내륜(50)은, 캐리어(26)와 연결되어 모터부(10)의 동력을 전달받으며, 허브내륜(50)을 따라 이동되는 캐리어(26)의 이동은 조절너트(60)에 의해 구속된다.The hub inner ring 50 rotatably installed inside the hub outer ring 30 is connected to the carrier 26 to receive power from the motor unit 10, and moves along the hub inner ring 50. ) Is constrained by the adjustment nut (60).

휠부재(80)를 회전시키는 동력을 발생하는 모터부(10)는, 고정자(16)와 회전자(18)를 감싸며 차체에 고정되는 모터하우징(12) 및 모터하우징(12)에 결합되는 커버부재(14)를 포함한다.The motor unit 10 generating power for rotating the wheel member 80 covers the stator 16 and the rotor 18 and is coupled to the motor housing 12 and the motor housing 12 fixed to the vehicle body. And a member 14.

모터하우징(12)의 일측(이하 도 1기준 좌측)은 개구되어 원통 형상으로 형성되며, 이러한 모터하우징(12)의 일측에 커버부재(14)가 결합된다.One side of the motor housing 12 (hereinafter referred to as FIG. 1 left) is opened to form a cylindrical shape, and the cover member 14 is coupled to one side of the motor housing 12.

모터하우징(12)의 내측에는 고정자(16)가 설치되며, 이러한 고정자(16)와 이격되어 회전자(18)가 설치된다.The stator 16 is installed inside the motor housing 12, and the rotor 18 is spaced apart from the stator 16.

회전자(18)는 구동축(19)과 연결되므로, 회전자(18)의 회전에 따라 구동축(19)도 회전된다.Since the rotor 18 is connected to the drive shaft 19, the drive shaft 19 is also rotated in accordance with the rotation of the rotor 18.

모터부(10)의 구동축(19)과 연결되는 감속부(20)는, 감속이 이루어지는 기술사상 안에서 다양한 변속장치가 사용될 수 있다.As the reduction unit 20 connected to the drive shaft 19 of the motor unit 10, various transmission devices may be used within the technical concept in which deceleration is performed.

일 실시예에 따른 감속부(20)는, 구동축(19)과 연결되는 썬기어(22)와, 썬기어(22)의 둘레를 따라 회전되는 유성기어(24)와, 유성기어(24)와 같이 회전되는 캐리어(26)를 포함한다.The reduction unit 20 according to the embodiment includes a sun gear 22 connected to the drive shaft 19, a planetary gear 24 rotated along the circumference of the sun gear 22, and a planetary gear 24. And a carrier 26 that rotates together.

구동축(19)에 연결되어 회전되는 썬기어(22)에 복수 개의 유성기어(24)가 치합되며, 이러한 유성기어(24)의 외측을 감싸며 링기어(32)가 설치된다.A plurality of planetary gears 24 are engaged with the sun gear 22 which is connected to the drive shaft 19 and rotated, and a ring gear 32 is installed to surround the outer side of the planetary gear 24.

유성기어(24)는 썬기어(22)와 링기어(32)에 치합되므로, 썬기어(22)의 회전에 따라 유성기어(24)는 자전을 하면서 썬기어(22)의 주변을 회전한다.Since the planetary gear 24 is engaged with the sun gear 22 and the ring gear 32, the planetary gear 24 rotates around the sun gear 22 while rotating as the sun gear 22 rotates.

유성기어(24)가 썬기어(22)에 치합되어 자전하면서 공전하므로 감속이 이루어지며, 이러한 유성기어(24)를 회전 가능하게 지지하는 캐리어(26)를 통해 회전동력이 출력된다.Since the planetary gear 24 is engaged with the sun gear 22 and rotates while rotating, the rotational speed is output through the carrier 26 rotatably supporting the planetary gear 24.

캐리어(26)는, 복수 개의 유성기어(24)에 연결되는 연결부재(27) 및 연결부재(27)와 연결되어 휠부재(80)에 고정되는 몸체부재(28)를 포함한다.The carrier 26 includes a connecting member 27 connected to the plurality of planetary gears 24 and a body member 28 connected to the connecting member 27 and fixed to the wheel member 80.

몸체부재(28)의 타측(이하 도 1기준 우측)에는 나사부(29)가 형성되며, 이러한 나사부(29)에 조절너트(60)가 체결되어 캐리어(26)의 이동을 구속한다.On the other side of the body member 28 (hereinafter referred to in FIG. 1 right), a threaded portion 29 is formed, and the adjusting nut 60 is fastened to the threaded portion 29 to restrain the movement of the carrier 26.

나사부(29)에 조절너트(60)가 체결된 상태에서, 조절너트(60)의 풀림을 방지하기 위하여 별도의 코킹(Caulking)작업이 수행될 수 있다.In the state in which the adjusting nut 60 is fastened to the threaded portion 29, a separate caulking operation may be performed to prevent loosening of the adjusting nut 60.

또는 조절너트(60)에 나사부(29)가 체결된 상태에서, 별도의 조립핀을 이용하여 조절너트(60)를 나사부(29)에 결합할 수 있으며, 이 외에도 접착제를 사용하여 조절너트(60)의 풀림을 방지할 수 있다.Alternatively, in the state in which the screw portion 29 is fastened to the adjusting nut 60, the adjusting nut 60 may be coupled to the screw portion 29 using a separate assembly pin, and in addition to the adjusting nut 60 using an adhesive. ) Can be prevented from loosening.

이와 같이 조절너트(60)의 풀림을 방지하기 위한 기술사상 안에서, 다양한 종류의 체결구조가 적용될 수 있다.In this manner, various kinds of fastening structures may be applied in the technical concept for preventing the loosening of the adjusting nut 60.

감속부(20)의 외측을 감싸는 형상으로 설치되는 허브외륜(30)은 모터부(10)에 고정되어 회전이 구속된다.Hub outer ring 30 is installed in a shape surrounding the outside of the reduction unit 20 is fixed to the motor portion 10 is constrained rotation.

이러한 허브외륜(30)의 내측에는, 유성기어(24)와 맞물리는 링기어(32)가 일체로 형성되므로, 부품비를 절감하는 동시에 조립공정도 단축된다.Since the ring gear 32 which meshes with the planetary gear 24 is integrally formed inside the hub outer ring 30, the assembly process can be shortened while reducing the component cost.

허브외륜(30)의 내측에 허브베어링(40)이 설치되며, 이러한 허브베어링(40)의 일측에는 이동부재(42)가 설치되며, 허브베어링(40)의 타측에는 허브외륜(30)에 고정되는 돌기부재(34)가 설치된다.Hub bearing 40 is installed on the inner side of the hub outer ring 30, the moving member 42 is installed on one side of the hub bearing 40, fixed to the hub outer ring 30 on the other side of the hub bearing 40 Protruding member 34 is installed.

이동부재(42)는 캐리어(26)의 연결부재(27)에 접하여 설치되므로, 캐리어(26)의 이동에 따라 이동부재(42)도 이동되어 허브베어링(40)의 조립에 필요한 예압을 형성한다. Since the movable member 42 is installed in contact with the connecting member 27 of the carrier 26, the movable member 42 is also moved in accordance with the movement of the carrier 26 to form a preload necessary for assembling the hub bearing 40. .

캐리어(26)의 외측을 감싸며 설치되는 허브내륜(50)의 외측에는 허브베어링(40)이 설치된다.Hub bearings 40 are installed on the outer side of the hub inner ring 50 installed to surround the outer side of the carrier 26.

허브내륜(50)은, 허브베어링(40)을 사이에 두고 허브외륜(30)의 내측에 회전 가능하게 설치된다.The hub inner ring 50 is rotatably provided inside the hub outer ring 30 with the hub bearing 40 therebetween.

일 실시예에 따른 허브내륜(50)은, 캐리어(26)의 외측을 감싸며 설치되는 지지몸체(52) 및 지지몸체(52)에서 절곡되어 휠부재(80)에 고정되는 절곡부재(54)를 포함한다.Hub inner ring 50 according to an embodiment, the support body 52 and the support body 52 is installed to surround the outer side of the carrier 26 and the bending member 54 is fixed to the wheel member 80 Include.

허브내륜(50)의 외측으로 돌출된 캐리어(26)의 이동을 구속하기 위해, 캐리어(26)의 나사부(29)에 조절너트(60)가 체결된다.In order to restrain the movement of the carrier 26 protruding outward of the hub inner ring 50, the adjustment nut 60 is fastened to the threaded portion 29 of the carrier 26.

휠부재(80)는, 캐리어(26)와 일체로 회전되며, 외측 둘레를 따라 타이어(70)가 설치되는 기술사상 안에서 다양한 변형 실시가 가능하다.The wheel member 80 is integrally rotated with the carrier 26 and can be variously modified within the technical concept in which the tire 70 is installed along the outer circumference.

휠부재(80)는, 타이어(70)를 지지하는 링 형상의 외측부재(82) 및 외측부재(82)의 중앙 개구된 부분을 폐쇄하는 지지부재(84)를 포함한다.The wheel member 80 includes a ring-shaped outer member 82 for supporting the tire 70 and a support member 84 for closing the centrally opened portion of the outer member 82.

도 1과 도 3에 도시된 바와 같이, 허브내륜(50)의 내측에는 스플라인홈(92)이 형성되며, 캐리어(26)의 외측에는 스플라인돌기(90)가 형성되므로, 허브내륜(50)과 캐리어(26)는 스플라인 결합되어 동력이 전달되는 동시에, 수평(도 1기준) 이동이 가능하다.1 and 3, the spline groove 92 is formed inside the hub inner ring 50, and the spline protrusion 90 is formed outside the carrier 26, so that the hub inner ring 50 is formed. The carrier 26 is spline-coupled to transmit power, and can move horizontally (see FIG. 1).

본 발명의 다른 실시예에 의하면, 캐리어(26)의 연결부재(27)와, 연결부재(27)와 마주하는 허브내륜(50)의 측면에 각각 기어가 형성되므로, 캐리어(26)의 나사부(29)가 조절너트(60)에 체결되는 동시에, 연결부재(27)에 구비된 기어와 허브내륜(50)에 구비된 기어가 서로 연결되어 동력을 전달한다.According to another embodiment of the present invention, since gears are formed on the side surfaces of the connecting member 27 of the carrier 26 and the hub inner ring 50 facing the connecting member 27, the threaded portion of the carrier 26 29 is fastened to the adjustment nut 60, the gear provided in the connecting member 27 and the gear provided in the hub inner ring 50 is connected to each other to transmit power.

캐리어(26)와 허브내륜(50)에 구비된 기어가 맞물림으로 결합되어 동력이 전달되면, 별도의 스플라인홈(92)과 스플라인돌기(90)를 이용하여 동력을 전달하는 방식에 비하여, 동력전달을 위한 공간을 최소로 할 수 있으며, 부품의 체적도 감소되어 부품비를 절감할 수 있다.When the gears provided in the carrier 26 and the hub inner ring 50 are engaged by engagement, power is transmitted, compared to a method of transmitting power by using a separate spline groove 92 and a spline protrusion 90, power transmission. The space for the controller can be minimized, and the volume of parts can be reduced, thereby reducing the cost of parts.

이하에서는 첨부된 도면들을 참조하여 본 발명의 일 실시예에 따른 인휠 구동장치(1)의 조립 및 작동상태를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the assembly and operating state of the in-wheel drive device 1 according to an embodiment of the present invention.

도 1과 도 3에 도시된 바와 같이, 캐리어(26)의 외측에 허브내륜(50)을 설치하고, 이러한 허브내륜(50)과 허브외륜(30)의 사이에 이동부재(42)와 허브베어링(40)과 돌기부재(34)가 설치된다.1 and 3, the hub inner ring 50 is provided on the outside of the carrier 26, the moving member 42 and the hub bearing between the hub inner ring 50 and the hub outer ring 30 40 and the projection member 34 are installed.

허브내륜(50)을 통해 캐리어(26)가 타측으로 이동되면, 캐리어(26)의 연결부재(27)가 이동부재(42)를 가압하여 허브베어링(40)의 조립시 필요한 예압을 형성한다.When the carrier 26 is moved to the other side through the hub inner ring 50, the connection member 27 of the carrier 26 presses the moving member 42 to form a preload necessary when assembling the hub bearing 40.

캐리어(26)의 조립과 함께 허브베어링(40)의 예압이 형성되면, 나사부(29)에 조절너트(60)를 체결하여, 캐리어(26)의 이동을 구속한다.When the preload of the hub bearing 40 is formed together with the assembly of the carrier 26, the adjusting nut 60 is fastened to the threaded portion 29 to restrain the movement of the carrier 26.

조립이 완료된 인휠 구동장치(1)는, 도 1과 도 2에 도시된 바와 같이, 모터부(10)의 구동축(19)이 회전되면, 구동축(19)에 연결된 썬기어(22)가 회전된다.As shown in FIGS. 1 and 2, the assembled in-wheel drive device 1 rotates the sun gear 22 connected to the drive shaft 19 when the drive shaft 19 of the motor unit 10 is rotated. .

썬기어(22)의 회전으로 유성기어(24)가 자전을 하면서 썬기어(22)의 둘레를 공전하며, 유성기어(24)를 지지하는 캐리어(26)도 회전되면서 감속된다.As the sun gear 22 rotates, the planetary gear 24 rotates and rotates around the sun gear 22, and the carrier 26 supporting the planet gear 24 is also decelerated.

캐리어(26)는 허브내륜(50)과 스플라인 결합되어 동력을 전달하며, 허브내륜(50)의 회전으로 휠부재(80)가 회전되면서 타이어(70)를 회전시킨다.The carrier 26 is splined to the hub inner ring 50 to transfer power, and rotates the tire 70 while the wheel member 80 is rotated by the rotation of the hub inner ring 50.

상술한 바와 같은 구성에 의하면, 일 실시예에 따른 인휠 구동장치(1)는, 감속부(20)와 허브외륜(30) 및 허브내륜(50)이 일체화되어 제품이 소형화되므로, 다른 부품과의 간섭을 회피할 수 있으며, 휠 사이즈를 소형화할 수 있다.According to the configuration as described above, the in-wheel drive device 1 according to an embodiment, since the reduction unit 20, the hub outer ring 30 and the hub inner ring 50 is integrated, the product is miniaturized, so that the in-wheel drive device 1 Interference can be avoided and the wheel size can be reduced.

또한 허브베어링(40)의 예압작업과 캐리어(26)의 조립작업이 동시에 이루어지므로, 조립 작업에 따른 생산성을 향상시킬 수 있다.In addition, since the pre-loading work of the hub bearing 40 and the assembling work of the carrier 26 are performed at the same time, it is possible to improve productivity according to the assembling work.

또한 링기어(32)가 허브외륜(30)에 일체로 형성되어 부품수가 감소하므로, 생산원가를 절감할 수 있다.In addition, since the ring gear 32 is integrally formed on the hub outer ring 30, the number of parts is reduced, thereby reducing the production cost.

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

또한, 전기자동차에 사용되는 인휠 구동장치를 예로 들어 설명하였으나, 이는 예시적인 것에 불과하며, 전기자동차가 아닌 다른 운송장치나 탑승장치에도 본 발명에 의한 인휠 구동장치가 사용될 수 있다.In addition, although the in-wheel driving apparatus used in the electric vehicle has been described as an example, this is merely exemplary, and the in-wheel driving apparatus according to the present invention may also be used in other transportation apparatuses or vehicles other than the electric vehicle.

따라서, 본 발명의 진정한 기술적 보호범위는 특허청구범위에 의해서 정하여져야 할 것이다.
Accordingly, the true scope of protection of the present invention should be defined by the claims.

1: 인휠 구동장치 10: 모터부
12: 모터하우징 14: 커버부재
16: 고정자 18: 회전자
19: 구동축 20: 감속부
22: 썬기어 24: 유성기어
26: 캐리어 27: 연결부재
28: 몸체부재 29: 나사부
30: 허브외륜 32: 링기어
34: 돌기부재 40: 허브베어링
42: 이동부재 50: 허브내륜
52: 지지몸체 54: 절곡부재
60: 조절너트 70: 타이어
80: 휠부재 82: 외측부재
90: 스플라인돌기 92: 스플라인홈1: In-wheel drive device 10: Motor part
12: motor housing 14: cover member
16: stator 18: rotor
19: drive shaft 20: reduction gear
22: Sun Gear 24: Planetary Gear
26: carrier 27: connecting member
28: body member 29: screw portion
30: hub paddle 32: ring gear
34: projection member 40: hub bearing
42: moving member 50: hub inner ring
52: support body 54: bending member
60: adjusting nut 70: tire
80: wheel member 82: outer member
90: spline protrusion 92: spline groove

Claims (6)

동력이 발생되는 모터부;
상기 모터부의 구동축과 연결되어 회전되는 썬기어와, 상기 썬기어의 둘레를 따라 회전되는 유성기어와, 상기 유성기어와 같이 회전되는 캐리어를 포함하는 감속부;
상기 감속부의 외측을 감싸는 형상으로 설치되며, 상기 유성기어와 맞물리는 링기어를 내측에 구비하는 허브외륜;
상기 허브외륜의 내측에 회전 가능하게 설치되며, 상기 캐리어와 연결되어 동력을 전달받는 허브내륜; 및
상기 허브내륜을 따라 이동되는 상기 캐리어의 이동을 구속하는 조절너트를 포함하는 것을 특징으로 하는 인휠 구동장치.
A motor unit generating power;
A reduction gear including a sun gear connected to a driving shaft of the motor unit, a sun gear rotated along a circumference of the sun gear, and a carrier rotated together with the planet gear;
A hub outer ring installed in a shape surrounding the outer side of the reduction unit and having a ring gear engaged therein with the planetary gear;
A hub inner ring rotatably installed inside the hub outer ring and connected to the carrier to receive power; And
And an adjusting nut for restraining the movement of the carrier which is moved along the hub inner ring.
제 1 항에 있어서,
상기 허브외륜의 내측에 상기 링기어가 일체로 형성되는 것을 특징으로 하는 인휠 구동장치.
The method of claim 1,
In-wheel drive device characterized in that the ring gear is formed integrally inside the hub outer ring.
제 1 항에 있어서,
상기 허브외륜은 상기 모터부에 고정되는 것을 특징으로 하는 인휠 구동장치.
The method of claim 1,
The hub outer ring is in-wheel drive, characterized in that fixed to the motor unit.
제 1 항에 있어서,
상기 허브내륜과 상기 캐리어는 스플라인 결합되어 동력이 전달되는 것을 특징으로 하는 인휠 구동장치.
The method of claim 1,
The hub inner ring and the carrier is spline-coupled in-wheel drive device, characterized in that the power is transmitted.
제 1 항에 있어서,
상기 허브내륜은, 상기 캐리어의 외측을 감싸며 설치되는 지지몸체; 및
상기 지지몸체에서 절곡되어 휠부재에 고정되는 절곡부재를 포함하는 것을 특징으로 하는 인휠 구동장치.
The method of claim 1,
The hub inner ring, the support body is installed surrounding the outer side of the carrier; And
In-wheel drive device characterized in that it comprises a bending member bent from the support body fixed to the wheel member.
제 1 항에 있어서,
상기 조절너트는, 상기 허브내륜의 외측으로 돌출된 상기 캐리어에 체결되는 것을 특징으로 하는 인휠 구동장치.The method of claim 1,
The adjustment nut is in-wheel drive device, characterized in that fastened to the carrier protruding outward of the hub inner ring.
KR1020110069059A 2011-07-12 2011-07-12 In-wheel working device KR101757317B1 (en)

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CN201210238788.0A CN102874096B (en) 2011-07-12 2012-07-10 Hub drive device

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CN112648358A (en) * 2021-01-05 2021-04-13 一汽解放汽车有限公司 Hub reduction gear
CN115674951A (en) * 2022-12-29 2023-02-03 江苏彼尔汽车部件有限公司 Stable radiating automobile wheel hub that leads
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JP4894215B2 (en) * 2005-10-05 2012-03-14 日産自動車株式会社 In-wheel drive unit
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EP3213957A1 (en) * 2016-03-04 2017-09-06 Jtekt Corporation Electric vehicle
KR102183332B1 (en) * 2019-09-27 2020-11-26 현대트랜시스 주식회사 Cooling device for wheel motor of vehicle
CN112648358A (en) * 2021-01-05 2021-04-13 一汽解放汽车有限公司 Hub reduction gear
KR20230048734A (en) * 2021-10-05 2023-04-12 주식회사 현대케피코 Stator Assembly type In Wheel Motor
CN115674951A (en) * 2022-12-29 2023-02-03 江苏彼尔汽车部件有限公司 Stable radiating automobile wheel hub that leads
CN115674951B (en) * 2022-12-29 2023-09-29 江苏彼尔汽车部件有限公司 Stable-guiding heat-dissipation automobile hub

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