KR20220132897A - Boot of axle for vehicles - Google Patents

Boot of axle for vehicles Download PDF

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Publication number
KR20220132897A
KR20220132897A KR1020210038035A KR20210038035A KR20220132897A KR 20220132897 A KR20220132897 A KR 20220132897A KR 1020210038035 A KR1020210038035 A KR 1020210038035A KR 20210038035 A KR20210038035 A KR 20210038035A KR 20220132897 A KR20220132897 A KR 20220132897A
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KR
South Korea
Prior art keywords
boot
press
axle
vehicle
fitted
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KR1020210038035A
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Korean (ko)
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KR102580410B1 (en
Inventor
김동우
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현대위아 주식회사
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Priority to KR1020210038035A priority Critical patent/KR102580410B1/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
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/845—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to the flexing of the cover
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; 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
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/20—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members
    • F16D3/22—Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts

Abstract

The present invention relates to a boot of an axle for a vehicle, which improves assemblability of the boot by improving a structure of the boot. Disclosed is the boot of an axle for a vehicle, which comprises: the boot; and a press-fitting member formed in a ring shape and fixated to an end part of the boot to be press-fitted to a wheel housing unit.

Description

차량용 액슬의 부트{Boot of axle for vehicles}Boot of axle for vehicles

본 발명은 부트의 구조 개선을 통해 부트의 조립성을 향상시키는 차량용 액슬의 부트에 관한 것이다.The present invention relates to a boot of an axle for a vehicle that improves the assembly of the boot by improving the structure of the boot.

기존 액슬의 경우, 너클에 휠베어링이 조립되고, 휠베어링에 등속조인트가 결합된다. 그리고, 등속조인트의 아우터레이스에 부트의 대경부가 밴드에 의해 체결된다.In the case of an existing axle, a wheel bearing is assembled to a knuckle, and a constant velocity joint is coupled to the wheel bearing. Then, the large diameter portion of the boot is fastened to the outer race of the constant velocity joint by a band.

등속조인트는 차량의 거동에 따라 절각되어지고, 부트 역시 등속조인트의 절각에 따라 함께 유동되면서 절각되어진다.The constant velocity joint is cut according to the behavior of the vehicle, and the boot is also cut as it flows along with the cut angle of the constant velocity joint.

한편, 통합형 드라이브 액슬(Integrated Drive Axle : IDA)은 등속조인트의 아우터레이스와 휠베어링의 허브를 일체화한 구조로서, 휠베어링의 내륜에 부트의 대경부가 조립되고, 부트의 대경부에 밴드가 체결된다.On the other hand, the integrated drive axle (IDA) is a structure in which the outer race of the constant velocity joint and the hub of the wheel bearing are integrated. The large diameter part of the boot is assembled to the inner ring of the wheel bearing, and the band is fastened to the large diameter part of the boot. .

하지만, 베어링의 내륜과 부트의 안착성을 높이기 위해 부트의 내주면 형상에 대응하여 베어링의 내륜이 가공됨으로써, 부품의 원가와 제조비용이 상승하는 문제가 있다.However, since the inner ring of the bearing is machined to correspond to the shape of the inner circumferential surface of the boot in order to increase the stability of the inner ring of the bearing and the boot, there is a problem in that the cost and manufacturing cost of parts increase.

또한, 밴드의 적용에 따라 부트의 원주방향을 따라 조여지는 힘이 불규칙적인 것은 물론, 밴드의 체결력이 약해짐에 따라 부트와 베어링 내륜 간의 조립이 느슨해져서 등속조인트에 주입된 그리스가 누유되는 품질 문제가 발생할 수 있다.In addition, according to the application of the band, the tightening force along the circumferential direction of the boot is irregular, and as the fastening force of the band is weakened, the assembly between the boot and the inner ring of the bearing is loosened, resulting in leakage of grease injected into the constant velocity joint. may occur.

상기의 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진 자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.The matters described as the background art above are only for improving the understanding of the background of the present invention, and should not be taken as an acknowledgment that they correspond to the prior art already known to those of ordinary skill in the art.

KR 10-2064275 B1KR 10-2064275 B1 KR 10-2010-0064081 AKR 10-2010-0064081 A

본 발명은 전술한 바와 같은 문제점을 해결하기 위하여 안출한 것으로, 부트의 구조 개선을 통해 부트의 조립성을 향상시키는 차량용 액슬의 부트를 제공하는 데 있다.The present invention has been devised to solve the above-described problems, and an object of the present invention is to provide a boot for an axle for a vehicle that improves the assembling property of the boot by improving the structure of the boot.

상기와 같은 목적을 달성하기 위한 본 발명의 구성은, 부트; 링 형상으로 형성되고, 상기 부트의 단부에 고정되어 휠하우징유닛에 압입되는 압입부재;을 포함하는 것을 특징으로 할 수 있다.The configuration of the present invention for achieving the above object is a boot; and a press-fitting member formed in a ring shape, fixed to an end of the boot and press-fitted into the wheel housing unit.

상기 압입부재가 휠베어링의 내륜에 압입될 수 있다.The press-fit member may be press-fitted into the inner ring of the wheel bearing.

상기 압입부재는 일정 이상의 강성을 갖는 재질로 형성되어 부트에 인서트 사출될 수 있다.The press-fitting member may be formed of a material having a rigidity greater than or equal to a certain level and may be insert-injected into the boot.

상기 압입부재는 단면이 직사각형의 링 형상으로 형성되어 부트의 대경부 내면에 고정되고; 상기 압입부재의 내주면 축방향을 따라 부트압입면이 형성되어 휠하우징유닛의 외주면에 압입될 수 있다.the press-fitting member is formed in a rectangular ring shape in cross section and fixed to the inner surface of the large-diameter portion of the boot; A boot press-fitting surface may be formed along the axial direction of the inner circumferential surface of the press-fit member to be press-fitted to the outer circumferential surface of the wheel housing unit.

상기 압입부재는 단면의 축방향 길이가 반경방향 폭방향 길이보다 길게 형성될 수 있다.The press-fitting member may have an axial length of a cross-section longer than a radial length of the press-fitting member.

상기 압입부재와 이에 대응하는 휠하우징유닛 사이에 써클립이 끼워질 수 있다.A circlip may be fitted between the press-fitting member and a corresponding wheel housing unit.

상기 압입부재의 외주면 중 일부의 원주방향을 따라 가압부가 돌출되어 형성될 수 있다.A pressing portion may be formed to protrude along a circumferential direction of a portion of the outer circumferential surface of the press-fitting member.

상기 가압부는 부트의 소경부를 향한 압입부재의 단부에 형성될 수 있다.The pressing portion may be formed at an end of the press-fitting member toward the small diameter portion of the boot.

상기 압입부재가 아우터레이스에 압입될 수 있다.The press-fitting member may be press-fitted into the outer race.

상기한 과제 해결수단을 통해 본 발명은, 부트의 대경부에 인서트 사출되는 압입부재가 휠하우징유닛에 압입 방식으로 조립됨으로써, 휠하우징유닛에 체결되는 부트의 체결력이 향상되어 누유 성능을 비롯하여 제품의 품질을 향상시키는 효과가 있다.Through the above-described problem solving means, the present invention provides a press-fitting member that is inserted into the large-diameter part of the boot by assembling it into the wheel housing unit in a press-fit manner, so that the fastening force of the boot fastened to the wheel housing unit is improved, so that the product including oil leakage performance is improved. It has the effect of improving quality.

더욱이, 부트의 압입 체결에 따라 기존의 밴드 체결은 물론 밴드 체결을 위한 내륜 가공작업이 불필요하여 부트의 조립성을 향상시키고, 원가를 절감하는 효과도 있다.Moreover, according to the press-fit fastening of the boot, the existing band fastening as well as the inner ring processing work for band fastening is unnecessary, so there is an effect of improving the assemblability of the boot and reducing the cost.

더불어, 밴드가 삭제됨에 따라 부트와 휠센서 간의 갭이 상대적으로 여유로워지고, 휠센서의 센싱 위치를 설계자가 자유롭게 조정하여 휠센서의 설계 자유도를 높이는 장점도 있다.In addition, as the band is deleted, the gap between the boot and the wheel sensor becomes relatively relaxed, and the designer freely adjusts the sensing position of the wheel sensor, thereby increasing the design freedom of the wheel sensor.

도 1은 본 발명에 따른 부트가 통합형 드라이브 액슬에 적용된 상태를 도시한 도면.
도 2는 본 발명에 따른 압입부재의 제1실시예 형상을 확대하여 도시한 도면.
도 3은 본 발명에 따른 압입부재의 제2실시예 형상을 확대하여 도시한 도면.
도 4는 본 발명에 따른 부트가 아우터레이스에 적용된 상태를 도시한 도면.1 is a view showing a state in which a boot according to the present invention is applied to an integrated drive axle;
Figure 2 is an enlarged view showing the shape of the first embodiment of the press-fit member according to the present invention.
Figure 3 is an enlarged view showing the shape of the second embodiment of the press-fit member according to the present invention.
4 is a view showing a state in which the boot according to the present invention is applied to the outer race.

본 명세서 또는 출원에 개시되어 있는 본 발명의 실시예들에 대해서 특정한 구조적 내지 기능적 설명들은 단지 본 발명에 따른 실시예를 설명하기 위한 목적으로 예시된 것으로, 본 발명에 따른 실시예들은 다양한 형태로 실시될 수 있으며 본 명세서 또는 출원에 설명된 실시 예들에 한정되는 것으로 해석되어서는 아니 된다.Specific structural or functional descriptions of the embodiments of the present invention disclosed in the present specification or application are only exemplified for the purpose of describing the embodiments according to the present invention, and the embodiments according to the present invention are implemented in various forms. and should not be construed as being limited to the embodiments described in the present specification or application.

본 발명에 따른 실시예는 다양한 변경을 가할 수 있고 여러 가지 형태를 가질 수 있으므로 특정 실시예들을 도면에 예시하고 본 명세서 또는 출원에 상세하게 설명하고자 한다. 그러나, 이는 본 발명의 개념에 따른 실시예를 특정한 개시형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술 범위에 포함되는 모든 변경, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다.Since the embodiment according to the present invention can have various changes and can have various forms, specific embodiments are illustrated in the drawings and described in detail in the present specification or application. However, this is not intended to limit the embodiment according to the concept of the present invention to a specific disclosed form, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

제1, 제2 등의 용어는 다양한 구성 요소들을 설명하는데 사용될 수 있지만, 상기 구성 요소들은 상기 용어들에 의해 한정되어서는 안된다. 상기 용어들은 하나의 구성 요소를 다른 구성 요소로부터 구별하는 목적으로만, 예컨대 본 발명의 개념에 따른 권리 범위로부터 이탈되지 않은 채, 제1 구성요소는 제2 구성요소로 명명될 수 있고, 유사하게 제2 구성요소는 제1 구성요소로도 명명될 수 있다.Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one element from another element, for example, without departing from the scope of the present invention, a first element may be termed a second element, and similarly The second component may also be referred to as the first component.

어떤 구성요소가 다른 구성요소에 "연결되어" 있다거나 "접속되어" 있다고 언급된 때에는, 그 다른 구성요소에 직접적으로 연결되어 있거나 또는 접속되어 있을 수도 있지만, 중간에 다른 구성요소가 존재할 수도 있다고 이해되어야 할 것이다. 반면에, 어떤 구성요소가 다른 구성요소에 "직접 연결되어" 있다거나 "직접 접속되어" 있다고 언급된 때에는, 중간에 다른 구성요소가 존재하지 않는 것으로 이해되어야 할 것이다. 구성요소들 간의 관계를 설명하는 다른 표현들, 즉 "~사이에"와 "바로 ~사이에" 또는 "~에 이웃하는"과 "~에 직접 이웃하는" 등도 마찬가지로 해석되어야 한다.When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle. Other expressions describing the relationship between elements, such as "between" and "immediately between" or "neighboring to" and "directly adjacent to", etc., should be interpreted similarly.

본 명세서에서 사용한 용어는 단지 특정한 실시예를 설명하기 위해 사용된 것으로, 본 발명을 한정하려는 의도가 아니다. 단수의 표현은 문맥상 명백하게 다르게 뜻하지 않는 한, 복수의 표현을 포함한다. 본 명세서에서, "포함하다" 또는 "가지다" 등의 용어는 설시 된 특징, 숫자, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것이 존재함을 지정하려는 것이지, 하나 또는 그 이상의 다른 특징들이나 숫자, 단계, 동작, 구성요소, 부분품 또는 이들을 조합한 것들의 존재 또는 부가가능성을 미리 배제하지 않는 것으로 이해되어야 한다.The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the specified features, numbers, steps, operations, components, parts, or combinations thereof exist, and include one or more other features or numbers. , it should be understood that it does not preclude the existence or addition of steps, operations, components, parts, or combinations thereof.

다르게 정의되지 않는 한, 기술적이거나 과학적인 용어를 포함해서 여기서 사용되는 모든 용어들은 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에 의해 일반적으로 이해되는 것과 동일한 의미이다. 일반적으로 사용되는 사전에 정의되어 있는 것과 같은 용어들은 관련 기술의 문맥상 가지는 의미와 일치하는 의미인 것으로 해석되어야 하며, 본 명세서에서 명백하게 정의하지 않는 한, 이상적이거나 과도하게 형식적인 의미로 해석되지 않는다.Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as meanings consistent with the context of the related art, and unless explicitly defined in the present specification, they are not to be interpreted in an ideal or excessively formal meaning. .

본 발명의 바람직한 실시예를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 부트(100)가 통합형 드라이브 액슬에 적용된 상태를 도시한 도면이다.1 is a diagram illustrating a state in which a boot 100 according to the present invention is applied to an integrated drive axle.

도면을 참조하면, 본 발명은 부트(100); 링 형상으로 형성되고, 상기 부트(100)의 단부에 고정되어 휠하우징유닛에 압입되는 압입부재(200);을 포함하여 구성이 된다.Referring to the drawings, the present invention is a boot 100; It is configured to include; a press-fitting member 200 formed in a ring shape, fixed to the end of the boot 100 and press-fitted into the wheel housing unit.

구체적으로, 통합형 드라이브 액슬의 경우 휠하우징(10)과 휠베어링(20)이 포함되어 휠하우징유닛이 구성이 된다.Specifically, in the case of the integrated drive axle, the wheel housing 10 and the wheel bearing 20 are included to constitute the wheel housing unit.

상기 휠하우징(10)은 휠허브와 아우터레이스(50)가 결합된 형상으로 형성되고, 상기 휠베어링(20)이 상기 휠하우징(10)의 외주면에 삽입된다.The wheel housing 10 is formed in a shape in which a wheel hub and an outer race 50 are combined, and the wheel bearing 20 is inserted into an outer circumferential surface of the wheel housing 10 .

그리고, 차량을 향하는 휠하우징(10)의 단부 둘레에 오비탈 포밍 가공을 수행하여 휠베어링(20)의 내륜(22)에 예압을 가하게 된다. 또한, 상기 휠베어링(20)의 외륜에 너클(30)이 볼팅 체결된다.Then, an orbital forming process is performed around the end of the wheel housing 10 facing the vehicle to apply a preload to the inner ring 22 of the wheel bearing 20 . In addition, the knuckle 30 is bolted to the outer ring of the wheel bearing 20 .

아울러, 상기 휠하우징(10)의 내면에 그루브가 형성되고, 드라이브샤프트(60)의 단부에 이너레이스와 함께 동력전달용 볼이 끼워진 케이지가 결합되어 CVJ가 구성이 된다. 이에, 상기 볼이 그루브 내에 삽입된 상태에서 구동축과 피동축이 만드는 굴절각에 따라 볼의 접촉위치가 변환됨으로써, 절각을 형성하면서 등속운동이 이루어지게 된다.In addition, a groove is formed on the inner surface of the wheel housing 10 , and a cage in which a ball for power transmission is fitted together with an inner race is coupled to an end of the drive shaft 60 to form a CVJ. Accordingly, in a state in which the ball is inserted into the groove, the contact position of the ball is changed according to the refraction angle made by the driving shaft and the driven shaft, so that a constant velocity motion is formed while forming a cleavage angle.

특히, 도 2는 본 발명에 따른 압입부재(200)의 제1실시예 형상을 확대하여 도시한 도면으로, 부트(100)의 대경부(100a)에 링 형상의 압입부재(200)가 구비되고, 상기 압입부재(200)가 휠베어링(20)의 내륜(22)에 압입되는 구조가 된다.In particular, FIG. 2 is an enlarged view showing the shape of the first embodiment of the press-fitting member 200 according to the present invention. The large-diameter portion 100a of the boot 100 is provided with a ring-shaped press-fitting member 200 and , the press-fitting member 200 has a structure in which the inner ring 22 of the wheel bearing 20 is press-fitted.

이를 위해, 상기 휠베어링(20)의 내륜(22)이 휠하우징(10)의 단부를 향해 축방향으로 연장 형성되어, 상기 휠베어링(20)의 내륜(22)에 압입부재(200)가 끼워지는 내륜압입면(22a)이 형성된다.To this end, the inner ring 22 of the wheel bearing 20 is extended in the axial direction toward the end of the wheel housing 10 , and the press-fitting member 200 is fitted to the inner ring 22 of the wheel bearing 20 . The inner ring press-fitting surface 22a is formed.

즉, 내륜(22)의 외주면에 형성된 내륜압입면(22a)에 압입부재(200)의 내주면이 압입 방식으로 조립됨으로써, 부트(100)의 원주방향으로 조여지는 압입력이 일정해지게 되고, 이에 부트(100)와 내륜(22) 간의 체결력이 향상되어 그리스 누유 등의 품질 문제가 발생하는 것을 방지하게 된다.That is, by assembling the inner circumferential surface of the press-fitting member 200 to the inner ring press-fitting surface 22a formed on the outer circumferential surface of the inner ring 22 in a press-fit manner, the pressing force tightened in the circumferential direction of the boot 100 becomes constant. The fastening force between the boot 100 and the inner ring 22 is improved to prevent quality problems such as grease leakage.

더불어, 부트(100)의 압입 체결에 따라 기존의 밴드 체결은 물론 밴드 체결을 위한 내륜(22) 가공작업이 불필요하여 부트(100)의 조립성을 향상시키고, 원가를 절감하게 된다.In addition, according to the press-fit fastening of the boot 100, the existing band fastening as well as the processing of the inner ring 22 for band fastening is unnecessary, thereby improving the assemblability of the boot 100 and reducing the cost.

또한, 밴드가 삭제됨에 따라 휠센서(40)와의 갭이 상대적으로 여유로워지고, 휠센서(40)의 센싱 위치를 설계자가 자유롭게 조정하여 휠센서(40)의 설계 자유도를 높이게 된다.In addition, as the band is deleted, the gap with the wheel sensor 40 becomes relatively relaxed, and the designer freely adjusts the sensing position of the wheel sensor 40 to increase the design freedom of the wheel sensor 40 .

아울러, 상기 압입부재(200)는 일정 이상의 강성을 갖는 재질로 형성되어 부트(100)에 인서트 사출될 수 있다.In addition, the press-in member 200 may be formed of a material having a rigidity greater than or equal to a certain level and may be insert-injected into the boot 100 .

예컨대, 상기 압입부재(200)의 재질은 스틸이 바람직하지만, 알루미늄, 플라스틱 등의 다른 재질로도 적용 가능하며, 상기 압입부재(200)가 부트(100)에 인서트되어 사출 성형될 수 있다.For example, the material of the press-in member 200 is preferably steel, but other materials such as aluminum and plastic may also be applied, and the press-fit member 200 may be inserted into the boot 100 and injection-molded.

더불어, 상기 압입부재(200)는 단면이 직사각형의 링 형상으로 형성되어 부트(100)의 대경부(100a) 내면에 고정되고; 상기 압입부재(200)의 내주면 축방향을 따라 부트압입면(200a)이 형성되어 휠하우징유닛의 외주면에 압입될 수 있다.In addition, the press-in member 200 is formed in a rectangular ring shape in cross section and fixed to the inner surface of the large diameter portion 100a of the boot 100 ; A boot press-fitting surface 200a is formed along the axial direction of the inner circumferential surface of the press-fitting member 200 to be press-fitted to the outer circumferential surface of the wheel housing unit.

즉, 상기 압입부재(200)의 단면이 직사각 형상으로 형성됨으로써, 압입부재(200)의 내주면에 형성된 부트압입면(200a)과 내륜(22)의 외주면에 형성된 내륜압입면(22a) 간의 접촉면적이 넓어지게 된다. That is, since the cross-section of the press-in member 200 is formed in a rectangular shape, the contact area between the boot press-in surface 200a formed on the inner circumferential surface of the press-fit member 200 and the inner ring press-in surface 22a formed on the outer circumferential surface of the inner ring 22 ) this will be wider

따라서, 부트(100)와 내륜(22) 간의 체결력을 더욱 향상시킬 수 있게 된다.Accordingly, it is possible to further improve the fastening force between the boot 100 and the inner ring 22 .

더 나아가, 상기 압입부재(200)는 단면의 축방향 길이가 반경방향 폭방향 길이보다 길게 형성될 수 있다.Furthermore, the press-fitting member 200 may be formed to have an axial length of a cross section longer than a radial length in the width direction.

즉, 상기 내륜압입면(22a)에 접촉되는 부트압입면(200a)의 길이가 길게 형성됨으로써, 부트(100)와 내륜(22) 간의 접촉면적이 더욱 넓어지게 되어 체결력을 향상시키게 된다.That is, as the length of the boot press-in surface 200a in contact with the inner ring press-in surface 22a is formed to be longer, the contact area between the boot 100 and the inner ring 22 becomes wider, thereby improving the fastening force.

아울러, 상기 압입부재(200)와 이에 대응하는 휠하우징유닛 사이에 써클립(300)이 끼워질 수 있다.In addition, the circlip 300 may be fitted between the press-fitting member 200 and a wheel housing unit corresponding thereto.

이를 위해, 상기 압입부재(200)의 내주면 중간부분과 이에 대응하는 내륜(22)의 외주면 중간부분에 홈이 각각 형성되고, 상기 홈에 써클립(300)이 끼워지게 됨으로써, 압입부재(200)가 내륜(22)에 조립뒤는 위치를 확인하게 되고, 부트(100)의 체결력을 더욱 향상시키게 된다.To this end, grooves are respectively formed in the middle portion of the inner circumferential surface of the press-fit member 200 and the middle portion of the outer circumferential surface of the inner ring 22 corresponding thereto, and the circlip 300 is fitted into the groove, whereby the press-fit member 200 After assembly to the inner ring 22, the position is confirmed, and the fastening force of the boot 100 is further improved.

한편, 도 3은 본 발명에 따른 압입부재(200)의 제2실시예 형상을 확대하여 도시한 도면이다.On the other hand, Figure 3 is an enlarged view showing the shape of the second embodiment of the press-fit member 200 according to the present invention.

도면을 참조하면, 상기 압입부재(200)의 외주면 중 일부의 원주방향을 따라 가압부(210)가 돌출되어 형성될 수 있다.Referring to the drawings, the pressing part 210 may be formed to protrude along the circumferential direction of a portion of the outer peripheral surface of the press-fitting member 200 .

구체적으로, 상기 가압부(210)는 부트(100)의 소경부를 향한 압입부재(200)의 단부에 형성될 수 있다. 참고로, 휠센서(40)는 부트(100)의 대경부(100a) 끝단에 위치할 수 있다.Specifically, the pressing part 210 may be formed at an end of the pressing member 200 toward the small diameter part of the boot 100 . For reference, the wheel sensor 40 may be located at the end of the large diameter portion 100a of the boot 100 .

즉, 부트(100)를 휠하우징(10)에 조립시, 내륜(22)을 향해 압입부재(200)를 밀어 넣어 압입부재(200)를 내륜(22)에 압입시키게 된다. 이에, 압입부재(200)의 외주면 중 소경부를 향한 단부의 외주면이 반경방향으로 확장된 형상으로 형성됨으로써, 내륜(22)을 향해 가압이 이루어지는 압입부재(200)의 가압 가능면적이 넓어지게 되고, 이에 압입 작업성을 향상시키게 된다.That is, when assembling the boot 100 to the wheel housing 10 , the press-fitting member 200 is pushed toward the inner race 22 to press-fit the press-fitting member 200 into the inner race 22 . Accordingly, the outer circumferential surface of the end toward the small-diameter portion of the outer circumferential surface of the press-in member 200 is formed in a radially expanded shape, so that the press-fitting area of the press-in member 200 that is pressed toward the inner ring 22 is widened, Accordingly, the press-fitting workability is improved.

한편, 도 4는 본 발명에 따른 부트(100)가 아우터레이스(50)에 적용된 상태를 도시한 도면이다.Meanwhile, FIG. 4 is a view showing a state in which the boot 100 according to the present invention is applied to the outer race 50 .

도면을 참조하면, 상기 압입부재(200)가 아우터레이스(50)에 압입될 수 있다.Referring to the drawings, the press-fitting member 200 may be press-fitted to the outer race 50 .

구체적으로, 일반적인 액슬의 경우 휠허브(부호생략)를 관통하여 아우터레이스(50) 가 스플라인 결합되고, 휠허브의 외주면에 휠베어링(20)이 결합되어 휠하우징유닛이 구성된다.Specifically, in the case of a general axle, the outer race 50 is spline coupled through the wheel hub (symbol omitted), and the wheel bearing 20 is coupled to the outer circumferential surface of the wheel hub to constitute a wheel housing unit.

그리고, 상기 아우터레이스(50)의 내면에 그루브가 형성되고, 드라이브샤프트(60)의 단부에 이너레이스와 함께 동력전달용 볼이 끼워진 케이지가 결합되어 CVJ가 구성이 된다. 이에, 상기 볼이 그루브 내에 삽입된 상태에서 구동축과 피동축이 만드는 굴절각에 따라 볼의 접촉위치가 변환됨으로써, 절각을 형성하면서 등속운동이 이루어지게 된다.Then, a groove is formed on the inner surface of the outer race 50, and a cage in which a ball for power transmission is fitted together with the inner race is coupled to an end of the drive shaft 60 to form a CVJ. Accordingly, in a state in which the ball is inserted into the groove, the contact position of the ball is changed according to the refraction angle made by the driving shaft and the driven shaft, so that a constant velocity motion is formed while forming a cleavage angle.

특히, 부트(100)의 대경부(100a)에 링 형상의 압입부재(200)가 구비되고, 상기 압입부재(200)가 아우터레이스(50)에 압입되는 구조가 된다.In particular, a ring-shaped press-fitting member 200 is provided in the large-diameter portion 100a of the boot 100 , and the press-fitting member 200 is press-fitted into the outer race 50 .

즉, 아우터레이스(50)의 단부 외주면에 압입부재(200)의 내주면이 압입 방식으로 조립됨으로써, 부트(100)의 원주방향으로 조여지는 압입력이 일정해지게 되고, 이에 부트(100)와 아우터레이스(50) 간의 체결력이 향상되어 그리스 누유 등의 품질 문제가 발생하는 것을 방지하게 된다.That is, by assembling the inner circumferential surface of the press-fitting member 200 to the outer circumferential surface of the end of the outer race 50 in a press-fit manner, the press-fitting force in the circumferential direction of the boot 100 becomes constant, and accordingly, the boot 100 and the outer The fastening force between the races 50 is improved to prevent quality problems such as grease leakage.

상술한 바와 같이, 본 발명은 부트(100)의 대경부(100a)에 인서트 사출되는 압입부재(200)가 휠하우징유닛에 압입 방식으로 조립됨으로써, 휠하우징유닛에 체결되는 부트(100)의 체결력이 향상되어 누유 성능을 비롯하여 제품의 품질을 향상시키게 된다.As described above, in the present invention, the press-fitting member 200, which is insert-injected into the large-diameter portion 100a of the boot 100, is assembled to the wheel housing unit by press-fitting, whereby the fastening force of the boot 100 is fastened to the wheel housing unit. This improvement will improve the quality of the product including oil leakage performance.

또한, 부트(100)의 압입 체결에 따라 기존의 밴드 체결은 물론 밴드 체결을 위한 내륜(22) 가공작업이 불필요하여 부트(100)의 조립성을 향상시키고, 원가를 절감하게 된다.In addition, according to the press-fit fastening of the boot 100 , as well as the existing band fastening, processing of the inner ring 22 for band fastening is unnecessary, thereby improving the assemblability of the boot 100 and reducing the cost.

그리고, 밴드가 삭제됨에 따라 휠센서(40)와의 갭이 상대적으로 여유로워지고, 휠센서(40)의 센싱 위치를 설계자가 자유롭게 조정하여 휠센서(40)의 설계 자유도를 높이게 된다.And, as the band is deleted, the gap with the wheel sensor 40 becomes relatively relaxed, and the designer freely adjusts the sensing position of the wheel sensor 40 to increase the design freedom of the wheel sensor 40 .

한편, 본 발명은 상기한 구체적인 예에 대해서만 상세히 설명되었지만 본 발명의 기술사상 범위 내에서 다양한 변형 및 수정이 가능함은 당업자에게 있어서 명백한 것이며, 이러한 변형 및 수정이 첨부된 특허청구범위에 속함은 당연한 것이다.On the other hand, although the present invention has been described in detail only with respect to the specific examples described above, it is obvious to those skilled in the art that various changes and modifications are possible within the scope of the technical spirit of the present invention, and it is natural that such variations and modifications belong to the appended claims. .

10 : 휠하우징
20 : 휠베어링
22 : 내륜
22a : 내륜압입면
30 : 너클
40 : 휠센서
50 : 아우터레이스
60 : 드라이브샤프트
100 : 부트
100a : 대경부
200 : 압입부재
200a : 부트압입면
210 : 가압부
300 : 써클립10: wheel housing
20: wheel bearing
22: inner ring
22a: inner ring press fit surface
30: knuckle
40: wheel sensor
50: outer race
60: drive shaft
100 : boot
100a: Daegyeongbu
200: press-fitting member
200a: boot press-in surface
210: pressurized part
300: circlip

Claims (9)

부트;
링 형상으로 형성되고, 상기 부트의 단부에 고정되어 휠하우징유닛에 압입되는 압입부재;을 포함하는 차량용 액슬의 부트.boot;
A boot for a vehicle axle comprising a; a press-fitting member formed in a ring shape, fixed to an end of the boot and press-fitted into the wheel housing unit. 청구항 1에 있어서,
상기 압입부재가 휠베어링의 내륜에 압입되는 것을 특징으로 하는 차량용 액슬의 부트.The method according to claim 1,
The boot of an axle for a vehicle, characterized in that the press-fit member is press-fitted into the inner ring of the wheel bearing. 청구항 1에 있어서,
상기 압입부재는 일정 이상의 강성을 갖는 재질로 형성되어 부트에 인서트 사출되는 것을 특징으로 하는 차량용 액슬의 부트.The method according to claim 1,
The boot of the axle for a vehicle, characterized in that the press-fit member is formed of a material having a certain rigidity or more and is insert-injected into the boot. 청구항 1에 있어서,
상기 압입부재는 단면이 직사각형의 링 형상으로 형성되어 부트의 대경부 내면에 고정되고;
상기 압입부재의 내주면 축방향을 따라 부트압입면이 형성되어 휠하우징유닛의 외주면에 압입되는 것을 특징으로 하는 차량용 액슬의 부트.The method according to claim 1,
the press-fitting member is formed in a rectangular ring shape in cross section and is fixed to the inner surface of the large-diameter portion of the boot;
A boot for a vehicle axle, characterized in that the boot press-fitting surface is formed along the axial direction of the inner circumferential surface of the press-fit member and is press-fitted to the outer circumferential surface of the wheel housing unit. 청구항 4에 있어서,
상기 압입부재는 단면의 축방향 길이가 반경방향 폭방향 길이보다 길게 형성된 것을 특징으로 하는 차량용 액슬의 부트.5. The method according to claim 4,
The boot of the axle for a vehicle, characterized in that the press-fit member is formed to have an axial length of a cross section longer than a radial width direction. 청구항 1에 있어서,
상기 압입부재와 이에 대응하는 휠하우징유닛 사이에 써클립이 끼워지는 것을 특징으로 하는 차량용 액슬의 부트.The method according to claim 1,
A boot for a vehicle axle, characterized in that a circlip is fitted between the press-fitting member and a wheel housing unit corresponding thereto. 청구항 1에 있어서,
상기 압입부재의 외주면 중 일부의 원주방향을 따라 가압부가 돌출되어 형성된 것을 특징으로 하는 차량용 액슬의 부트.The method according to claim 1,
A boot for a vehicle axle, characterized in that the pressing portion is formed to protrude along a circumferential direction of a portion of the outer peripheral surface of the press-fit member. 청구항 7에 있어서,
상기 가압부는 부트의 소경부를 향한 압입부재의 단부에 형성된 것을 특징으로 하는 차량용 액슬의 부트.8. The method of claim 7,
The boot of an axle for a vehicle, characterized in that the pressing portion is formed at an end of the press-fitting member toward the small diameter portion of the boot. 청구항 1에 있어서,
상기 압입부재가 아우터레이스에 압입되는 것을 특징으로 하는 차량용 액슬의 부트.The method according to claim 1,
The boot of an axle for a vehicle, characterized in that the press-fit member is press-fitted to the outer race.
KR1020210038035A 2021-03-24 2021-03-24 Boot of axle for vehicles KR102580410B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117399960A (en) * 2023-12-01 2024-01-16 安徽汉普斯精密传动有限公司 Automatic press-fitting clamp spring and bearing integrated machine for motor rotor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990037718U (en) * 1998-03-11 1999-10-15 배길훈 Damper and Boot Seal for Drive Shaft
KR20050099729A (en) * 2004-04-12 2005-10-17 주식회사 일진베어링 Saft jointer for driving wheel bearing unit
KR100817213B1 (en) * 2006-10-27 2008-03-27 쌍용자동차 주식회사 Boot seal for vehicles
KR100837989B1 (en) * 2006-01-23 2008-06-13 한국델파이주식회사 Boot-Fixing Assembly of Constant Velocity Joint for a Vehicle
KR20100064081A (en) 2008-12-04 2010-06-14 현대자동차주식회사 Boot mounting structure
KR20130135524A (en) * 2012-06-01 2013-12-11 현대자동차주식회사 Connecting structure of outer race and boot
KR102064275B1 (en) 2018-04-02 2020-01-09 주식회사 일진글로벌 Wheel bearing for vehicle
KR20210008734A (en) * 2019-07-15 2021-01-25 현대위아 주식회사 Hub built-in type constant velocity joint apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990037718U (en) * 1998-03-11 1999-10-15 배길훈 Damper and Boot Seal for Drive Shaft
KR20050099729A (en) * 2004-04-12 2005-10-17 주식회사 일진베어링 Saft jointer for driving wheel bearing unit
KR100837989B1 (en) * 2006-01-23 2008-06-13 한국델파이주식회사 Boot-Fixing Assembly of Constant Velocity Joint for a Vehicle
KR100817213B1 (en) * 2006-10-27 2008-03-27 쌍용자동차 주식회사 Boot seal for vehicles
KR20100064081A (en) 2008-12-04 2010-06-14 현대자동차주식회사 Boot mounting structure
KR20130135524A (en) * 2012-06-01 2013-12-11 현대자동차주식회사 Connecting structure of outer race and boot
KR102064275B1 (en) 2018-04-02 2020-01-09 주식회사 일진글로벌 Wheel bearing for vehicle
KR20210008734A (en) * 2019-07-15 2021-01-25 현대위아 주식회사 Hub built-in type constant velocity joint apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117399960A (en) * 2023-12-01 2024-01-16 安徽汉普斯精密传动有限公司 Automatic press-fitting clamp spring and bearing integrated machine for motor rotor
CN117399960B (en) * 2023-12-01 2024-03-08 安徽汉普斯精密传动有限公司 Automatic press-fitting clamp spring and bearing integrated machine for motor rotor

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