KR20080082259A - Fastening structure of shaft with bearing - Google Patents

Fastening structure of shaft with bearing Download PDF

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Publication number
KR20080082259A
KR20080082259A KR1020070022884A KR20070022884A KR20080082259A KR 20080082259 A KR20080082259 A KR 20080082259A KR 1020070022884 A KR1020070022884 A KR 1020070022884A KR 20070022884 A KR20070022884 A KR 20070022884A KR 20080082259 A KR20080082259 A KR 20080082259A
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KR
South Korea
Prior art keywords
shaft
bearing
groove
inner ring
present
Prior art date
Application number
KR1020070022884A
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Korean (ko)
Inventor
강상욱
허상훈
Original Assignee
세메스 주식회사
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Priority to KR1020070022884A priority Critical patent/KR20080082259A/en
Publication of KR20080082259A publication Critical patent/KR20080082259A/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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/07—Fixing them on the shaft or housing with interposition of an element
    • F16C35/073—Fixing them on the shaft or housing with interposition of an element between shaft and inner race ring
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063—Fixing them on the shaft
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-contact bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
    • F16C19/08—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with two or more rows of balls

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

A fastening structure of a shaft and a bearing is provided to minimize abrasion of the shaft and the bearing by fixing the bearing to the shaft using a key so that an inner race of the bearing rotates during rotation of the shaft. A fastening structure of a shaft(200) and a bearing(100) comprises a key(300). The bearing includes an inner race(102) having a first groove(106) and an outer race(104) which is disposed apart from the inner race, wherein a plurality of balls is interposed between the inner race and the outer race. The shaft is inserted into the bearing and has a second groove(206) forming a predetermined space in combination with the first groove. The key is inserted into the space, which is formed between the first and second grooves, to fix the shaft to the inner race of the bearing.

Description

샤프트와 베어링과의 체결 기구{FASTENING STRUCTURE OF SHAFT WITH BEARING}FASTENING STRUCTURE OF SHAFT WITH BEARING}

도 1은 본 발명의 실시예에 따른 샤프트와 베어링과의 체결 기구에 있어서 베어링을 도시한 사시도.1 is a perspective view showing a bearing in a fastening mechanism between a shaft and a bearing according to an embodiment of the present invention.

도 2는 본 발명의 실시예에 따른 샤프트와 베어링과의 체결 기구에 있어서 샤프트를 도시한 사시도.Figure 2 is a perspective view of the shaft in the fastening mechanism between the shaft and the bearing according to an embodiment of the present invention.

도 3은 본 발명의 실시예에 따른 샤프트와 베어링과의 체결 상태를 도시한 단면도.3 is a cross-sectional view showing a fastening state between the shaft and the bearing according to the embodiment of the present invention.

도 4는 본 발명의 실시예에 따른 샤프트와 베어링과의 체결 기구의 응용예를 도시한 사시도.Figure 4 is a perspective view showing an application example of the fastening mechanism between the shaft and the bearing according to the embodiment of the present invention.

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

100; 베어링 101; 볼100; Bearing 101; ball

102; 내륜 104; 외륜102; Inner ring 104; paddle

106; 베어링의 홈 200; 샤프트106; Groove of bearing 200; shaft

202; 샤프트의 단면 206; 샤프트의 홈202; Cross section 206 of the shaft; Groove of shaft

300; 키300; key

본 발명은 체결 기구에 관한 것으로, 보다 구체적으로 샤프트와 베어링과의 체결 기구에 관한 것이다.The present invention relates to a fastening mechanism, and more particularly to a fastening mechanism of the shaft and the bearing.

샤프트와 베어링과의 체결은 베어링에 샤프트를 직접적으로 삽입함으로써 이루어지는 것이 일반적이다. 종래에 있어서 샤프트는 베어링 안에서 회전 가능하게 체결되는데 이 경우 베어링의 내륜과 샤프트와의 마찰로 인해 샤프트 또는 베어링이 손상되는 현상이 빈번해지는 것이 종래이다. 이러한 경우 샤프트 또는 베어링을 교체하여야 하는데 특히 샤프트가 손상되는 경우 이를 재생하는 것이 곤란하였다. 한편, 작업성을 위해 베어링 공차를 이용하여 샤프트를 가공하는데, 이 경우 베어링과 샤프트 사이의 공차로 인해 샤프트가 헛도는 현상이 발생되기도 하였다.Fastening of the shaft to the bearing is usually achieved by inserting the shaft directly into the bearing. In the related art, the shaft is rotatably fastened in the bearing, and in this case, the phenomenon in which the shaft or the bearing is damaged frequently is caused by friction between the inner ring of the bearing and the shaft. In this case, the shaft or the bearing must be replaced, especially when the shaft is damaged, it is difficult to regenerate it. On the other hand, the shaft is processed by using the bearing tolerance for workability, in which case the shaft is missed due to the tolerance between the bearing and the shaft.

이에 본 발명은 상술한 종래 기술상의 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 마모 현상을 줄이고 수명을 늘릴 수 있는 샤프트와 베어링과의 체결 기구를 제공함에 있다.Accordingly, the present invention has been made to solve the above-mentioned problems in the prior art, an object of the present invention to provide a fastening mechanism between the shaft and the bearing that can reduce the wear phenomenon and increase the life.

상기 목적을 달성하기 위한 본 발명에 따른 샤프트와 베어링과의 체결 기구는 샤프트와 베어링의 내륜에 홈을 만들고 그 홈에 키를 삽입하여 샤프트와 베어링을 고정 체결시킨 것을 특징으로 한다.The fastening mechanism between the shaft and the bearing according to the present invention for achieving the above object is characterized in that the groove is formed in the inner ring of the shaft and the bearing and the key is inserted into the groove to fix the shaft and the bearing.

상기 특징을 구현할 수 있는 본 발명의 실시예에 따른 샤프트와 베어링과의 체결 기구는, 제1 홈이 형성된 내륜과, 상기 내륜과는 다수개의 볼을 사이에 두고 배치되는 외륜을 구비하는 베어링과; 상기 베어링에 삽입되고, 상기 제1 홈과 함께 일정한 공간을 형성하는 제2 홈이 형성된 샤프트와; 상기 제1 및 제2 홈이 형성하는 일정한 공간에 삽입되어 상기 샤프트를 상기 베어링의 내륜에 고정시키는 키를 포함하는 것을 특징으로 한다.According to an embodiment of the present invention, the fastening mechanism between the shaft and the bearing may include: a bearing having an inner ring formed with a first groove and an outer ring disposed between the inner ring and a plurality of balls; A shaft inserted into the bearing and having a second groove formed together with the first groove to form a predetermined space; And a key inserted into a predetermined space formed by the first and second grooves to fix the shaft to the inner ring of the bearing.

본 실시예에 있어서, 상기 내륜은 상기 샤프트와 더불어 회전한다.In this embodiment, the inner ring rotates with the shaft.

본 실시예에 있어서, 상기 제1 홈은 상기 내륜의 폭을 가로질러 형성되고, 상기 제2 홈은 상기 샤프트의 일단면까지 형성된다.In the present embodiment, the first groove is formed across the width of the inner ring, the second groove is formed to one end surface of the shaft.

본 발명에 의하면, 베어링과 샤프트를 키를 이용하여 고정함으로써 샤프트 회전시 베어링의 내륜도 같이 회전하여 샤프트와 베어링의 마모, 마찰, 갈림 등의 현상을 최소화 시킬 수 있게 된다.According to the present invention, by fixing the bearing and the shaft using a key, the inner ring of the bearing also rotates when the shaft is rotated, thereby minimizing the phenomenon of wear, friction, and grinding of the shaft and the bearing.

이하, 본 발명에 따른 샤프트와 베어링과의 체결 기구를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings a fastening mechanism between the shaft and the bearing according to the present invention will be described in detail.

본 발명과 종래 기술과 비교한 이점은 첨부된 도면을 참조한 상세한 설명과 특허청구범위를 통하여 명백하게 될 것이다. 특히, 본 발명은 특허청구범위에서 잘 지적되고 명백하게 청구된다. 그러나, 본 발명은 첨부된 도면과 관련해서 다음의 상세한 설명을 참조함으로써 가장 잘 이해될 수 있다. 도면에 있어서 동일한 참조부호는 다양한 도면을 통해서 동일한 구성요소를 나타낸다.Advantages over the present invention and prior art will become apparent through the description and claims with reference to the accompanying drawings. In particular, the present invention is well pointed out and claimed in the claims. However, the present invention may be best understood by reference to the following detailed description in conjunction with the accompanying drawings. Like reference numerals in the drawings denote like elements throughout the various drawings.

(실시예)(Example)

도 1은 본 발명의 실시예에 따른 샤프트와 베어링과의 체결 기구에 있어서 베어링을 도시한 사시도이고, 도 2는 본 발명의 실시예에 따른 샤프트와 베어링과의 체결 기구에 있어서 샤프트와 키를 도시한 사시도이다.1 is a perspective view illustrating a bearing in a fastening mechanism between a shaft and a bearing according to an embodiment of the present invention, and FIG. 2 shows a shaft and a key in the fastening mechanism between a shaft and a bearing according to an embodiment of the present invention. One perspective view.

도 1을 참조하면, 본 발명 실시예의 베어링(100)은 고리 모양의 내륜(102)과, 그 보다 큰 직경의 고리 모양의 외륜(104)과, 내륜(102)과 외륜(104) 사이에 배치된 수개의 볼(101)을 포함하여 구성된다. 내륜(102)의 특정 지점에는 홀(106)이 형성된다. 홀(106)은 내륜(102)의 폭을 가로질러 대체로 직사각형 형태를 지닌다.Referring to FIG. 1, a bearing 100 of an embodiment of the present invention is disposed between an annular inner ring 102, a larger outer annular outer ring 104, and an inner ring 102 and an outer ring 104. It consists of several balls 101. Holes 106 are formed at specific points of the inner ring 102. The hole 106 has a generally rectangular shape across the width of the inner ring 102.

도 2를 참조하면, 본 발명 실시예의 샤프트(200)는 대체로 원형 단면을 가진 원통형 외관을 가진다. 샤프트(200)의 특정 지점에는 대체로 직사각형 형태의 홈(206)이 형성된다. 이 홈(206)은 샤프트(200)와 베어링(100)이 체결되는 경우 베어링(100)에 형성된 홈(106)과 맞닿는 위치에 형성한다. 샤프트(200)는 도 1에 도시된 베어링(100)의 내륜(102) 속으로 삽입된다. 샤프트(200)가 베어링(100)에 삽입될 때 베어링(100)에 형성된 홈(106)과 샤프트(200)에 형성된 홈(206)이 합쳐져서 키(300)가 삽입되는 공간을 제공한다. 한편, 키(300)의 삽입 및 분리의 편리성을 위해 샤프트(200)에 형성된 홈(206)은 적어도 어느 한 단면(202)까지 연장되도록 설계하는 것이 바람직하다.2, the shaft 200 of the embodiment of the present invention has a cylindrical appearance with a generally circular cross section. At certain points of the shaft 200 grooves 206 are formed in a generally rectangular shape. The groove 206 is formed at a position in contact with the groove 106 formed in the bearing 100 when the shaft 200 and the bearing 100 are fastened. The shaft 200 is inserted into the inner ring 102 of the bearing 100 shown in FIG. 1. When the shaft 200 is inserted into the bearing 100, the groove 106 formed in the bearing 100 and the groove 206 formed in the shaft 200 are combined to provide a space in which the key 300 is inserted. On the other hand, for convenience of insertion and removal of the key 300, the groove 206 formed in the shaft 200 is preferably designed to extend to at least one end surface 202.

도 3은 본 발명의 실시예에 따른 샤프트와 베어링과의 체결 기구에 있어서 샤프트와 베어링과의 체결 상태를 도시한 단면도이다.3 is a cross-sectional view showing a fastening state between the shaft and the bearing in the fastening mechanism between the shaft and the bearing according to the embodiment of the present invention.

도 3을 참조하면, 샤프트(200)는 베어링(100)의 내륜(102)에 삽입되고, 베어 링(100)의 내륜(102)에 형성된 홈(106)과 샤프트(200)에 형성된 홈(206)이 이루는 공간을 키(300)가 삽입된다. 이에 따라, 샤프트(200)는 베어링(100)의 내륜(102)에 삽입 고정된다. 따라서, 샤프트(200)의 회전시 내륜(102)이 함께 회전하므로 샤프트(200)가 헛도는 현상이 없어진다. 게다가, 베어링(100)의 내륜(102)과 샤프트(200)의 직접적인 마찰 현상이 제거되므로 샤프트(200) 및 베어링(100)의 마모가 최소화된다. 또한, 베어링(100) 내의 볼(101)에 작용되었던 집중 하중이 분산되므로 베어링(100)의 수명이 연장된다.Referring to FIG. 3, the shaft 200 is inserted into the inner ring 102 of the bearing 100, the groove 106 formed in the inner ring 102 of the bearing 100 and the groove 206 formed in the shaft 200. The key 300 is inserted into a space formed by). Accordingly, the shaft 200 is inserted and fixed to the inner ring 102 of the bearing 100. Therefore, since the inner ring 102 rotates together when the shaft 200 rotates, the phenomenon in which the shaft 200 disappears is eliminated. In addition, since the direct friction between the inner ring 102 of the bearing 100 and the shaft 200 is eliminated, wear of the shaft 200 and the bearing 100 is minimized. In addition, since the concentrated load applied to the ball 101 in the bearing 100 is distributed, the life of the bearing 100 is extended.

도 4는 본 발명의 실시예에 따른 샤프트와 베어링과의 체결 기구를 응용한 예를 도시한 사시도이다.Figure 4 is a perspective view showing an example of applying the fastening mechanism between the shaft and the bearing according to an embodiment of the present invention.

도 4를 참조하면, 예를 들어 기판 처리 장치의 일부(90)에 두 개의 베어링(100,100')이 설치되고, 이 베어링(100,100')에 가령 브러쉬 샤프트와 같은 샤프트(200)가 고정 삽입된다. 베어링(100,100')과 샤프트(200)와의 체결은 상술한 예, 즉 샤프트(200)와 베어링(100,100')은 키(300)에 의해 서로 고정된다. Referring to FIG. 4, for example, two bearings 100 and 100 ′ are installed in a part 90 of the substrate processing apparatus, and a shaft 200 such as a brush shaft is fixedly inserted into the bearings 100 and 100 ′. The coupling between the bearings 100 and 100 'and the shaft 200 is fixed to each other by the above-described example, that is, the shaft 200 and the bearings 100 and 100' are secured by the key 300.

이상의 발명의 상세한 설명은 개시된 실시 상태로 본 발명을 제한하려는 의도가 아니며, 본 발명의 요지를 벗어나지 않는 범위 내에서 다양한 다른 조합, 변경 및 환경에서 사용할 수 있다. 첨부된 청구범위는 다른 실시 상태도 포함하는 것으로 해석되어야 할 것이다.The foregoing detailed description is not intended to limit the invention to the disclosed embodiments, and may be used in various other combinations, modifications, and environments without departing from the spirit of the invention. The appended claims should be construed to include other embodiments.

이상에서 상세히 설명한 바와 같이, 본 발명에 의하면, 베어링과 샤프트를 키를 이용하여 고정함으로써 샤프트 회전시 베어링의 내륜도 같이 회전하여 샤프트 와 베어링의 마모, 마찰, 갈림 등의 현상을 최소화시킬 수 있게 된다. 이에 따라, 샤프트와 베어링과의 체결을 공고히 함과 동시에 내마모성 및 수명이 향상되는 효과가 있다.As described in detail above, according to the present invention, by fixing the bearing and the shaft using a key, the inner ring of the bearing also rotates when the shaft is rotated, thereby minimizing a phenomenon such as wear, friction, and grinding of the shaft and the bearing. . As a result, the fastening between the shaft and the bearing is secured, and at the same time, the wear resistance and the service life are improved.

Claims (3)

제1 홈이 형성된 내륜과, 상기 내륜과는 다수개의 볼을 사이에 두고 배치되는 외륜을 구비하는 베어링과;A bearing having an inner ring having a first groove formed therein and an outer ring disposed between the inner ring and a plurality of balls; 상기 베어링에 삽입되고, 상기 제1 홈과 함께 일정한 공간을 형성하는 제2 홈이 형성된 샤프트와;A shaft inserted into the bearing and having a second groove formed together with the first groove to form a predetermined space; 상기 제1 및 제2 홈이 형성하는 일정한 공간에 삽입되어 상기 샤프트를 상기 베어링의 내륜에 고정시키는 키;A key inserted into a predetermined space defined by the first and second grooves to fix the shaft to an inner ring of the bearing; 를 포함하는 것을 특징으로 하는 샤프트와 베어링과의 체결 기구.Fastening mechanism of the shaft and the bearing, comprising a. 제1항에 있어서,The method of claim 1, 상기 내륜은 상기 샤프트와 더불어 회전하는 것을 특징으로 하는 샤프트와 베어링과의 체결 기구.And the inner ring rotates together with the shaft. 제1항에 있어서,The method of claim 1, 상기 제1 홈은 상기 내륜의 폭을 가로질러 형성되고, 상기 제2 홈은 상기 샤프트의 일단면까지 형성된 것을 특징으로 하는 샤프트와 베어링과의 체결 기구.And the first groove is formed across the width of the inner ring, and the second groove is formed to one end surface of the shaft.
KR1020070022884A 2007-03-08 2007-03-08 Fastening structure of shaft with bearing KR20080082259A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105090197A (en) * 2015-09-02 2015-11-25 山东华芯富创电子科技有限公司 Locating structure for parts on shaft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105090197A (en) * 2015-09-02 2015-11-25 山东华芯富创电子科技有限公司 Locating structure for parts on shaft

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