KR100541145B1 - Boots joint structure of constant velocity joint - Google Patents

Boots joint structure of constant velocity joint Download PDF

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Publication number
KR100541145B1
KR100541145B1 KR1020030084463A KR20030084463A KR100541145B1 KR 100541145 B1 KR100541145 B1 KR 100541145B1 KR 1020030084463 A KR1020030084463 A KR 1020030084463A KR 20030084463 A KR20030084463 A KR 20030084463A KR 100541145 B1 KR100541145 B1 KR 100541145B1
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South Korea
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boot
housing
constant velocity
fixing
groove
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KR1020030084463A
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Korean (ko)
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KR20050050817A (en
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윤동영
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한국프랜지공업 주식회사
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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
    • 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
    • F16D3/202—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 one coupling part having radially projecting pins, e.g. tripod joints
    • F16D3/205—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 one coupling part having radially projecting pins, e.g. tripod joints the pins extending radially outwardly from the coupling part

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

본 발명은 등속조인트의 부츠결합 구조에 관한 것으로서,The present invention relates to a boot coupling structure of the constant velocity joint,

등속조인트의 하우징 외주면에 소정공간의 홈을 형성하고 하우징 외주면과 결합하는 부츠의 내주면에 소정높이의 돌기와 내주면의 반대면에 소정깊이의 홈을 형성하여 하우징과 부츠의 결합면의 결합압력을 증가시켜주는 등속조인트의 부츠결합 구조로 이루어진다.A groove of a predetermined space is formed on the outer circumferential surface of the constant velocity joint, and a groove having a predetermined depth is formed on the inner circumferential surface of the boot that is engaged with the outer circumferential surface of the constant velocity joint, and a groove having a predetermined depth is formed on the opposite side of the inner circumferential surface to increase the engagement pressure between the housing and the boot. The main consists of a boot coupling structure of the constant velocity joint.

등속조인트의 하우징 외주면에 소정깊이의 홈을 형성하고 하우징 외주면과 결합하는 부츠의 내주면에 소정높이의 돌기와 내주면의 반대면에 소정깊이의 홈을 형성하여 하우징과 부츠의 결합면의 결합압력을 증가시켜 등속조인트 내의 윤활제의 누출을 방지하는 효과가 있고, 하우징 고정홈의 폭에 대한 깊이의 비를 4이상으로 유지하여 그 제작을 용이하게 하는 효과가 있다.A groove having a predetermined depth is formed on the outer circumferential surface of the constant velocity joint, and a groove having a predetermined depth is formed on the inner circumferential surface of the boot that is engaged with the outer circumferential surface of the constant velocity joint, and a groove having a predetermined depth is formed on the opposite surface of the inner circumferential surface to increase the coupling pressure between the housing and the boot. There is an effect of preventing the leakage of lubricant in the constant velocity joint, there is an effect of maintaining the ratio of the depth to the width of the housing fixing groove to 4 or more to facilitate the production.

등속조인트, 부츠, 하우징Constant velocity joints, boots, housing

Description

등속조인트의 부츠결합 구조{BOOTS JOINT STRUCTURE OF CONSTANT VELOCITY JOINT}BOOTS JOINT STRUCTURE OF CONSTANT VELOCITY JOINT}

도 1 은 종래의 등속조인트의 부츠결합 구조를 나타낸 단면도이다.1 is a cross-sectional view showing a boot coupling structure of a conventional constant velocity joint.

도 2 는 본 발명의 일 실시예에 따른 등속조인트의 부츠결합구조를 나타낸 요부확대 단면도이다.Figure 2 is an enlarged cross-sectional view showing the main portion of the boot coupling structure of the constant velocity joint according to an embodiment of the present invention.

도 3a 및 도 3b는 본 발명의 일 실시예에 따른 등속조인트가 동작시 부츠체결 구조의 상태를 나타내는 요부확대 단면도이다.3A and 3B are enlarged cross-sectional views illustrating main parts of a boots fastening structure when a constant velocity joint is operated according to an exemplary embodiment of the present invention.

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

10 : 부츠 고정부 11 : 부츠 내주면10: fixed part of the boot 11: inner circumference of the boot

12 : 고정돌기 13 : 고정돌기홈12: fixing protrusion 13: fixing protrusion groove

20 : 하우징 21 : 고정홈20: housing 21: fixing groove

23 : 하우징 외주면 25 : 턱부23: housing outer peripheral surface 25: jaw portion

30 : 클램핑 밴드30: clamping band

본 발명은 등속조인트의 부츠결합 구조에 관한 것으로서, 더욱 상세하게는 등속조인트의 하우징 외주면에 소정깊이의 홈을 형성하고 하우징 외주면과 결합하는 부츠의 내주면에 소정높이의 돌기와 내주면의 반대면에 소정깊이의 홈을 형성하여 하우징과 부츠의 결합면의 결합압력을 증가시켜주는 등속조인트의 부츠결합 구조에 관한 것이다.The present invention relates to a boot coupling structure of a constant velocity joint, and more particularly, a groove having a predetermined depth is formed on the outer circumferential surface of the constant velocity joint, and a predetermined depth is provided on the inner circumferential surface of the boot coupled to the outer circumferential surface of the constant velocity joint on the opposite side of the inner circumferential surface. It relates to a boot coupling structure of the constant velocity joint to form a groove of the groove to increase the coupling pressure of the coupling surface of the housing and the boot.

일반적으로 앞바퀴 구동 차량의 추진축에는 구동축과 수동축의 교차각이 커지더라도 등속으로 원활하게 운동할 수 있게 연결해 주는 등속조인트 장치가 설치된다.In general, a constant velocity joint device is installed on the propulsion shaft of the front wheel drive vehicle so as to smoothly move at a constant speed even when the crossing angle of the driving shaft and the manual shaft increases.

도 1 은 종래의 등속조인트의 부츠결합 구조를 나타낸 단면도이다.1 is a cross-sectional view showing a boot coupling structure of a conventional constant velocity joint.

도 1에 도시되어 있는 바와 같이, 종래의 차량 등속조인트 장치는, 엔진의 회전동력이 전달되며 위치 압착홈이 형성되어 있는 드라이브 샤프트(DRIVE SHAFT)(10')와, 상기한 드라이브 샤프트(10')에 연결되어 있는 스파이더 조립체(20')와, 상기한 스파이더 조립체(20')의 외부면을 둘러싸고 있는 하우징(HOUSING)(30')과, 상기한 하우징(30')과 드라이브 샤프트(10')의 연결부를 밀봉시키기 위하여 상기한 하우징(30')과 드라이브 샤프트(10')에 끝단이 각각 연결되는 부츠(40')와, 상기한 부츠(40')가 상기한 하우징(30')과 드라이브 샤프트(10')에 밀착되도록 조여주기 위한 밴드(51', 53')와, 상기한 부츠(40')의 내부에 봉입되어 있는 윤활제(60')를 포함하여 이루어진다.As shown in FIG. 1, a conventional vehicle constant velocity joint device includes a drive shaft 10 ′ in which rotational power of an engine is transmitted and a position crimp groove is formed, and the drive shaft 10 ′. Is connected to the spider assembly 20 ', the housing 30' surrounding the outer surface of the spider assembly 20 ', the housing 30' and the drive shaft 10 '. Boots 40 ', which are connected to the housing 30' and the drive shaft 10 ', respectively, in order to seal the connection of the And bands 51 'and 53' for tightening to be in close contact with the drive shaft 10 ', and a lubricant 60' enclosed in the boot 40 '.

상기한 구성에 의한 종래의 등속조인트의 부츠결합 구조는, 하우징(30')의 끝단 둘레에 소정깊이의 홈이 형성되고 상기 하우징(30')과 결합하는 부츠(40')의 내주면에 소정높이의 돌기가 형성되어 결합되는 동시에 부츠(40')의 내주면의 반대 면의 둘레에 밴드(51')로 주여주어 결합력을 높이고 있다.The boot coupling structure of the conventional constant velocity joint according to the above-described configuration has a predetermined height in the inner circumferential surface of the boot 40 'which is formed with a groove having a predetermined depth around the end of the housing 30' and engages with the housing 30 '. At the same time, the protrusions are formed and coupled to the band 51 'around the opposite side of the inner circumferential surface of the boot 40' to increase the coupling force.

그러나, 이와 같은 종래의 등속조인트의 부츠결합 구조는, 하우징(30')과 부츠(40')의 결합 구조는 하우징(30')의 외주면과 부츠(40')의 내주면이 결합시 만나는 면의 결합력이 약하여 밴드(51')의 조임력에만 의존하기 때문에 밴드(51')의 조임력이 약화시 그 결합력도 함께 약해지는 문제점이 있다.However, the conventional boots coupling structure of the constant velocity joint, the coupling structure of the housing 30 'and the boot 40' of the surface where the outer peripheral surface of the housing 30 'and the inner peripheral surface of the boot 40' meets when the coupling Since the coupling force is weak and only depends on the tightening force of the band 51 ', the weakening force of the band 51' is also weakened.

따라서, 본 발명은 상기와 같은 종래의 문제점을 해소하기 위하여 창출한 것으로서, 본 발명의 목적은 등속조인트의 하우징 외주면에 소정공간의 홈을 형성하고 하우징 외주면과 결합하는 부츠의 내주면에 소정높이의 돌기와 내주면의 반대면에 소정깊이의 홈을 형성하여 하우징과 부츠의 결합면의 결합력을 증가시켜주는 등속조인트의 부츠결합 구조를 제공하는데 있다.Accordingly, the present invention has been made to solve the conventional problems as described above, and an object of the present invention is to form a groove of a predetermined space on the outer peripheral surface of the constant velocity joint and a protrusion having a predetermined height on the inner peripheral surface of the boot that is coupled to the outer peripheral surface of the constant velocity joint. To provide a boot coupling structure of the constant velocity joint to form a groove of a predetermined depth on the opposite side of the inner peripheral surface to increase the coupling force of the coupling surface of the housing and the boot.

상기와 같은 목적을 달성하기 위한 본 발명에 의한 등속조인트의 부츠결합 구조는, 하우징의 오주면을 부츠 단부에 형성된 부츠 고정부내로 삽입하고, 상기 부츠 고정부의 외주에 클램핑 밴드를 결합하여 압박하고, 상기 부츠 고정부의 내주면에는 다수개의 고정돌기가 형성되어 있어 상기 하우징에 형성된 소정공간을 가지는 고정홈으로 삽입 고정되어 이루어진다.Boot coupling structure of the constant velocity joint according to the present invention for achieving the above object, inserts the circumferential surface of the housing into the boot fixing portion formed on the boot end, and by pressing the clamping band to the outer circumference of the boot fixing portion The inner circumferential surface of the boot fixing part has a plurality of fixing protrusions formed therein and is inserted and fixed into a fixing groove having a predetermined space formed in the housing.

상기 부츠의 고정돌기가 형성된 반대면에는 부츠 고정돌기와 같은 개수이고 소정깊이를 가지는 고정돌기홈이 형성되어 있는 동시에 고정돌기 각각의 윗부분 정중앙에 위치하여 형성된다.On the opposite side on which the fixing protrusion of the boot is formed, fixing protrusion grooves having the same number and predetermined depths as the fixing protrusions of the boot are formed and formed at the center of the upper portion of each of the fixing protrusions.

상기 부츠의 고정돌기의 높이는 적어도 하우징의 고정홈의 깊이보다 낮게 형성된다.The height of the fixing protrusion of the boot is formed at least lower than the depth of the fixing groove of the housing.

상기 하우징의 고정홈의 깊이에 대한 하우징 고정홈의 폭의 비가 적어도 4 이상으로 형성된다.The ratio of the width of the housing fixing groove to the depth of the housing fixing groove is formed at least four or more.

이하 첨부된 도면에 의거하여 본 발명에 의한 등속조인트의 부츠결합 구조를 더욱 상세하게 설명하면 다음과 같다.Hereinafter, the boots coupling structure of the constant velocity joint according to the present invention will be described in detail with reference to the accompanying drawings.

도 2 는 본 발명의 일 실시예에 따른 하우징의 구조를 구조를 나타낸 요부확대 단면도이다.Figure 2 is an enlarged cross-sectional view showing the main structure of the housing according to an embodiment of the present invention.

도 2 는 본 발명의 일실시예에 따른 부츠결합 구조를 나타낸 요부확대 단면도로, 부츠의 고정부(10)가 하우징(20)의 고정홈(21)에 끼워진 상태를 나타내고 있다. Figure 2 is an enlarged cross-sectional view showing the main portion of the boot coupling structure according to an embodiment of the present invention, showing a state in which the fixing portion 10 of the boot is fitted into the fixing groove 21 of the housing 20.

부츠 고정부(10)의 내주면(11)에는 두개의 볼록한 고정돌기(12)가 일체로 형성되어 있고, 부츠 고정부(10)는 이 볼록한 부분(12)을 하우징의 외주면(23)에 형성된 소정공간의 고정홈(21)에 끼워진다.Two convex fixing protrusions 12 are integrally formed on the inner circumferential surface 11 of the boot fixing portion 10, and the boot fixing portion 10 defines the convex portion 12 on the outer circumferential surface 23 of the housing. It fits into the fixing groove 21 of the space.

부츠 고정부(10)는 상술한 상태로 하우징(20)의 외주면(23)과 결합된 후, 그 결합된 부츠 고정부(10)의 외주에 클램핑 밴드(30)에 의하여 바인딩(BINDING)되어 고정된다. 상기 클램핑 밴드(30)는 부츠 고정부(10)의 외주면에 장착한 후, 강제적으로 단단히 조여준다. 이와 같이 하여, 부츠 고정부(10)는 클램핑 밴드(30)가 조 여주는 힘에 의하여 내측에 압박을 받아 부츠 고정부(10)의 내주면(11)이 하우징(20)의 외주면(23)에 단단히 결합하게 된다.The boot fixing part 10 is coupled to the outer circumferential surface 23 of the housing 20 in the above-described state, and then bound to the outer circumference of the combined boot fixing part 10 by the clamping band 30 to be fixed. do. The clamping band 30 is mounted on the outer circumferential surface of the boot fixing part 10 and then tightened by force. In this way, the boot fixing part 10 is pressed inward by the force clamped by the clamping band 30 so that the inner circumferential surface 11 of the boot fixing part 10 is applied to the outer circumferential surface 23 of the housing 20. Tightly coupled.

본 발명의 일실시예서는, 도 3을 참조하면, 하우징의 고정홈의 깊이(a), 폭(b)을 아래와 같이 설정하고 있다. In one embodiment of the present invention, referring to FIG. 3, the depth a and the width b of the fixing groove of the housing are set as follows.

깊이(a)는 대략 1.3mm 이고 폭(b)은 5.3mm 이면서, 폭(b)에 대한 깊이(a)의 비는 적어도 4 이상으로 형성된다.Depth a is approximately 1.3 mm and width b is 5.3 mm, while the ratio of depth a to width b is at least four.

고정홈 깊이(a)는 결합된 부츠를 압박하는 클램핑 밴드(30)가 바인딩될 때에 부츠 고정부(10)의 고정돌기(12)가 하우징(20)의 고정홈(21)에 확실하게 결합되고, 부츠 고정부(10)가 축방향과 횡방향의 합성력을 받을 경우에도, 하우징(20)에 대하에 위치 이탈을 일으키지 않을 정도의 고정력을 얻을 수 있는 깊이로서 상기 치수범위로 설정한다.The fixing groove depth (a) is securely coupled to the fixing groove 21 of the housing 20 when the fixing protrusion 12 of the boot fixing portion 10 is bound when the clamping band 30 for pressing the coupled boots is bound. Even when the boot fixing portion 10 is subjected to the combined force in the axial direction and the lateral direction, it is set in the above-described dimensional range as a depth capable of obtaining a fixing force that does not cause positional deviation from the housing 20.

폭(b)에 대한 깊이(a)의 비를 4 이상으로 한 것은, 고정홈(21)을, 모방 가공이 용이하게 하기 위해서이다. 이것에 의해, 고정홈(21)의 가공 비용 또한 절감된다.The ratio of the depth a to the width b is set to 4 or more in order to facilitate the imitation processing of the fixing groove 21. As a result, the machining cost of the fixing groove 21 is also reduced.

상기한 구성에 의한, 본 발명의 일실시예에 따른 등속조인트의 부츠결합 구조의 작용은 다음과 같다.By the above configuration, the action of the boot coupling structure of the constant velocity joint according to an embodiment of the present invention is as follows.

도 3a 내지 도 3b는 본 발명의 일 실시예에 따른 등속조인트가 동작시 부츠체결 구조의 상태를 나타내는 요부확대 단면도이다.3A to 3B are enlarged cross-sectional views illustrating main parts of a boots fastening structure when the constant velocity joint is operated according to an embodiment of the present invention.

도 3a 내지 도 3b를 참조하면, 먼저, 단부 둘레에 홈이 형성된 하우징(20)이 부츠의 단부 내주면(11)으로 삽입되고 하우징(20)과 부츠과 결합한 부분의 외측에 밴드(30)가 형성된다. 이때, 부츠의 단부 내주면(11)에 형성된 두개의 돌기(12)가 하우징의 홈의 좌우 턱부(25)에 걸리면서 삽입되고 부츠의 돌기(12)와 하우징(20)의 고정홈(21)이 결합되는 부분 하부에는 소정크기의 공간이 형성된다. 이 공간은 등속조인트가 동작 진동에 의해 부츠가 하우징(20)의 좌우 어느 한쪽으로 밀리게 되는 경우, 탄성재질인 부츠 고정부(10)의 고정돌기(12)가 같은 방향의 하우징(20)의 고정홈(21)의 턱부(25)에 걸리게 되는 동시에 부츠 고정부(10)의 고정돌기 위에 형성된 홈(13)의 공간이 줄어들게 되고, 고정돌기(12)가 접히면서 하부로 소정높이 돌출되기 때문에 고정돌기(12)와 턱부(25)의 마찰면적이 늘어나면서 높은 결합력을 유지할 수 있게 된다. 또한, 하우징(20)과 부츠가 결합한 부분 외측에 클램핑 밴드(30)가 형성되어 그 결합력은 더욱 증대된다.3A to 3B, first, a housing 20 having a groove formed around the end is inserted into the inner circumferential surface 11 of the end of the boot, and a band 30 is formed outside the portion where the housing 20 is coupled with the boot. . At this time, the two projections 12 formed on the inner peripheral surface 11 of the boots are inserted while being caught by the left and right jaws 25 of the grooves of the housing, and the protrusions 12 of the boots and the fixing grooves 21 of the housing 20 are coupled to each other. A predetermined size space is formed below the portion to be formed. When the constant velocity joint causes the boot to be pushed to either side of the housing 20 due to the vibration of the motion, the fixing projections 12 of the boot fixing part 10 made of elastic material are formed in the housing 20 in the same direction. At the same time as the jaw portion 25 of the fixing groove 21 is reduced in the space of the groove 13 formed on the fixing protrusion of the boot fixing portion 10, because the fixing protrusion 12 is folded to protrude a predetermined height downward. As the friction area between the fixing protrusion 12 and the jaw portion 25 increases, it is possible to maintain a high coupling force. In addition, the clamping band 30 is formed outside the portion where the housing 20 and the boots are coupled, and the coupling force is further increased.

본 발명은 상술한 종래의 문제점을 극복하기 위한 것으로서, 등속조인트의 하우징 외주면에 소정깊이의 홈을 형성하고 하우징 외주면과 결합하는 부츠의 내주면에 소정높이의 돌기와 내주면의 반대면에 소정깊이의 홈을 형성하여 하우징과 부츠의 결합면의 결합압력을 증가시켜 등속조인트 내의 윤활제의 누출을 방지하는 효과가 있고, 하우징 고정홈의 폭에 대한 깊이의 비를 4이상으로 유지하여 그 제작을 용이하게 하는 효과가 있다.The present invention is to overcome the above-described problems, the groove of the constant velocity joint to form a groove of a predetermined depth on the outer peripheral surface of the boot and the groove of the predetermined height on the inner peripheral surface of the boot coupled with the outer peripheral surface of the predetermined height groove on the opposite side of the inner peripheral surface It is effective to prevent the leakage of lubricant in the constant velocity joint by increasing the coupling pressure of the coupling surface of the housing and the boot, and to maintain the ratio of the depth to the width of the housing fixing groove to 4 or more to facilitate the production There is.

Claims (4)

삭제delete 삭제delete 부츠의 단부에 형성된 부츠 고정부를 하우징의 외주에 끼우고, 상기 부츠 고정부의 외주에 클램핑 밴드를 결합하여 압박하고, 상기 부츠 고정부의 내주면에는 다수개의 고정돌기가 형성되어 있어 상기 하우징에 형성된 소정공간을 가지는 고정홈으로 삽입 고정되어 이루어지며,The boot fixing part formed at the end of the boot is inserted into the outer circumference of the housing, the clamping band is coupled to the outer circumference of the boot fixing part, and a plurality of fixing protrusions are formed on the inner circumferential surface of the boot fixing part to form the housing. It is made to be inserted into a fixed groove having a predetermined space, 상기 부츠의 고정돌기가 형성된 반대면에는 부츠 고정돌기와 같은 개수이고 소정깊이를 가지는 고정돌기홈이 형성되어 있는 동시에 고정돌기 각각의 윗부분 정중앙에 위치하여 형성되며,On the opposite side on which the fixing protrusion of the boot is formed, fixing protrusion grooves having the same number and predetermined depths as the fixing protrusions of the boots are formed and formed at the center of the upper portion of each of the fixing protrusions. 상기 부츠의 고정돌기의 높이는 적어도 하우징의 고정홈의 깊이보다 낮게 형성되는 것을 특징으로 하는 등속조인트의 부츠결합 구조.The height of the fixing projection of the boot is at least a boot coupling structure of the constant velocity joint, characterized in that formed lower than the depth of the fixing groove of the housing. 제 3항에 있어서, 상기 하우징의 고정홈의 깊이에 대한 하우징 고정홈의 폭의 비는 적어도 4 이상인 것을 특징으로 하는 등속조인트의 부츠결합 구조.4. The boot coupling structure of claim 3, wherein a ratio of the width of the housing fixing groove to the depth of the housing fixing groove is at least four.
KR1020030084463A 2003-11-26 2003-11-26 Boots joint structure of constant velocity joint KR100541145B1 (en)

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