JP2571809Y2 - Connection structure between ceramic shaft and rotating body - Google Patents
Connection structure between ceramic shaft and rotating bodyInfo
- Publication number
- JP2571809Y2 JP2571809Y2 JP1991098421U JP9842191U JP2571809Y2 JP 2571809 Y2 JP2571809 Y2 JP 2571809Y2 JP 1991098421 U JP1991098421 U JP 1991098421U JP 9842191 U JP9842191 U JP 9842191U JP 2571809 Y2 JP2571809 Y2 JP 2571809Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- ceramic shaft
- rotating body
- shaft
- connecting pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Gears, Cams (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、結合用ピンを用いてセ
ラミック軸と回転体を結合するセラミック軸と回転体と
の結合構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for connecting a ceramic shaft and a rotating body by connecting the ceramic shaft and the rotating body using a connecting pin.
【０００２】[0002]
【従来の技術】近年、例えば電子レンジ等で駆動源によ
り回転駆動されるターンテーブルの回転軸にセラミック
軸が用いられている。この場合に図７、図８のようにセ
ラミック軸１に細い貫通孔１ａを穿設し、回転体６と結
合する時、貫通孔１ａに結合用ピン５″を挿通してこの
結合用ピン５″を回転体６の嵌合部６ｂに落とし込んで
結合している。この時、セラミック軸１の貫通孔１ａに
結合用ピン５″を挿通して結合すると、貫通孔１ａの両
端部にある孔縁端部ａに集中的に荷重が掛かって欠けて
しまう欠点がある。又、図９のように貫通孔１ａの孔縁
端部を面取りして開口部径を大きくすると、セラミック
軸１の強度が損なわれる。さらに、セラミック軸１の場
合、面取りは加工性が悪くなる欠点がある。2. Description of the Related Art In recent years, a ceramic shaft has been used as a rotation shaft of a turntable which is driven to rotate by a drive source in, for example, a microwave oven. Figure 7 In this case, drilled a narrow through hole 1a in the ceramic shaft 1 as shown in FIG. 8, when combined with the rotating body 6, the coupling pin 5 is inserted a pin 5 'for coupling the through hole 1a "bound plunge into the fitting portion 6b of the rotation body 6. At this time, when the connecting pin 5 ″ is inserted into the through-hole 1a of the ceramic shaft 1 and connected, the two
Disadvantages Anaentan portion a at the end would lack intensively load is applied there Ru. Also, as shown in FIG.
If the diameter of the opening is increased by chamfering the end, the strength of the ceramic shaft 1 is impaired. In addition, the field of ceramic shaft 1
If, chamfer drawback there Ru workability is poor.
【０００３】[0003]
【考案が解決しようとする課題】解決しようとする問題
点は、セラミック軸の貫通孔の孔縁端部が欠けたり、面
取りの加工性が悪くなり、セラミック軸の強度が損なわ
れることである。本考案の目的は上記欠点に鑑み、貫通
孔の孔縁端部が欠け難く、セラミック軸の強度が損なわ
れず、加工が平易なセラミック軸と回転体との結合構造
を提案することである。The problems to be solved are that the edge of the through hole of the ceramic shaft is chipped, the workability of chamfering is deteriorated, and the strength of the ceramic shaft is impaired. SUMMARY OF THE INVENTION In view of the above-described drawbacks, an object of the present invention is to propose a coupling structure between a ceramic shaft and a rotating body that is hard to chip at the edge of the through hole, does not impair the strength of the ceramic shaft, and is easy to process.
【０００４】[0004]
【課題を解決するための手段】 本考案は、結合用ピン
を貫通孔にわずかな隙間を設けて挿通して該結合用ピン
の両端部を該貫通孔から凸出したセラミック軸と、上記
セラミック軸を挿通する中心孔と、この中心孔と重なり
上記結合用ピンをわずかな隙間を設けて嵌合させる嵌合
部を有する歯車等の回転体とから成り、上記貫通孔は平
らな通し孔で形成し、上記結合用ピンに太い部分と細い
部分とを設け、上記太い部分を上記貫通孔の中間部と近
接させると共に上記細い部分を上記貫通孔の両端部とそ
れぞれ対向させたことを要旨とする。Means for Solving the Problems The present invention is directed to a ceramic shaft in which a connecting pin is inserted through a through hole with a slight gap, and both ends of the connecting pin are projected from the through hole; consists of a central hole for inserting the shaft, the rotating member such as a gear having a mating portion for fitting the center hole and heavy Do Ri <br/> the coupling pin is provided a small clearance, the through hole Is flat
Formed by et a through hole, provided a thick portion and a thin portion in the coupling pin, the intermediate portion of the through hole of the thick portion and the near
Both ends of the through hole of the thin portion causes the contact and its
The gist is that they face each other.
【０００５】[0005]
【作用】図１でセラミック軸１が回転される時は、歯車
７が図示しない駆動源で回転駆動されて回転体６に伝達
され、この回転が結合用ピン５を介してセラミック軸１
に伝達されて回転される。セラミック軸１の回転でカッ
プリング13と金属軸８とタ−ンテ−ブル９が回転され
る。この時結合用ピン５がセラミック軸１の貫通孔1aの
孔縁端部に当たることがない。When the ceramic shaft 1 is rotated in FIG. 1, the gear 7 is driven to rotate by a drive source (not shown) and transmitted to the rotating body 6, and this rotation is transmitted through the connecting pin 5 to the ceramic shaft 1.
It is transmitted to and rotated. The rotation of the ceramic shaft 1 rotates the coupling 13, the metal shaft 8 and the turntable 9. At this time, the connecting pin 5 does not hit the edge of the through hole 1a of the ceramic shaft 1.
【０００６】[0006]
【実施例】以下、図示の実施例で本考案を説明する。図
１は本考案を実施したタ−ンテ−ブル駆動系部分の断面
側面図、図２はセラミック軸と回転体と結合用ピンを示
す要部拡大断面側面図、図３はセラミック軸と回転体と
結合用ピンを示す要部拡大断面平面図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a cross-sectional side view of a turntable driving system according to the present invention, FIG. 2 is an enlarged cross-sectional side view showing a ceramic shaft, a rotating body, and a connecting pin, and FIG. 3 is a ceramic shaft and a rotating body. FIG. 4 is an enlarged cross-sectional plan view of a main part showing a connecting pin.
【０００７】 図１から図３でターンテーブル駆動系部
分に組み込まれるセラミック軸と回転体との結合構造
は、セラミック軸１が軸受１０、１１で軸承され、軸受
１０、１１は夫々上下のケース２、３で支持されてい
る。セラミック軸１の下端は支持板４で支持されてい
る。ケース２、３内のセラミック軸１には丸孔で平らな
通し孔の貫通孔１ａが穿設されて結合用ピン５が図２お
よび図３に示すように、わずかな隙間を設けて挿通され
ている。結合用ピン５位置のセラミック軸１外周には歯
車からなる回転体６が嵌合されている。回転体６の中心
にはセラミック軸１が挿通される中心孔６ａが穿設され
ると共に、結合用ピン５が図３に示すように、わずかな
隙間を設けて嵌まる嵌合部６ｂが形成されている。更に
上下のケース２、３には軸１２が固定されて回転体６の
歯車と噛合する歯車７が軸承されている。セラミック軸
１の上端には金属軸８がカップリング１３で結合されて
いる。金属軸８の上端にはターンテーブル９が固定され
ている。ターンテーブル９の固定部９ａの周囲から下側
はカバー１４で覆われている。1 to 3, a ceramic shaft 1 and a rotating body are combined with each other in a turntable drive system. The ceramic shaft 1 is supported by bearings 10 and 11, and the bearings 10 and 11 are respectively provided in upper and lower cases 2. , Supported by 3. The lower end of the ceramic shaft 1 is supported by a support plate 4. In the ceramic shaft 1 in the cases 2 and 3, a through hole 1a having a round through hole and a flat through hole is formed .
As shown in FIG. 3 and FIG. 3, it is inserted with a slight gap . A rotating body 6 composed of a gear is fitted around the ceramic shaft 1 at the position of the coupling pin 5. At the center of the rotating body 6, a center hole 6a through which the ceramic shaft 1 is inserted is formed, and the connecting pin 5 is slightly inserted as shown in FIG.
A fitting portion 6b that fits with a gap is formed. Further, a shaft 12 is fixed to the upper and lower cases 2 and 3 and a gear 7 meshing with a gear of the rotating body 6 is supported. A metal shaft 8 is connected to an upper end of the ceramic shaft 1 by a coupling 13. A turntable 9 is fixed to the upper end of the metal shaft 8. A lower portion of the turntable 9 from the periphery of the fixed portion 9 a is covered with a cover 14.
【０００８】上記セラミック軸１の貫通孔ｌａは加工し
易い丸孔で平らな通し孔で形成されて結合用ピン５が挿
通されている。結合用ピン５は柱状に形成されると共
に、中央と両端部５ａ、５ｂを太い部分とし、両端部５
ａ、５ｂより内側に細い部分５ｃ、５ｄが形成されてい
る。貫通孔１ａに結合用ピン５が挿通された時、結合用
ピン５の両端部５ａ、５ｂは貫通孔１ａから凸出すると
共に、結合用ピン５の細い部分５ｃ、５ｄは夫々貫通孔
１ａの孔縁端部と対向するように構成されている。The through hole la of the ceramic shaft 1 is a round hole that is easy to process and is formed as a flat through hole, and the coupling pin 5 is inserted therethrough. The connecting pin 5 is formed in a columnar shape, and the center and both end portions 5a and 5b are made thick portions.
Thin portions 5c and 5d are formed inside a and 5b . When the coupling pin 5 into the through-hole 1a is inserted, both ends 5a of the coupling pin 5, 5b are both <br/> to leave protruding from the through hole 1a, a thin portion 5c of the coupling pin 5, 5d is Each is configured so as to face the hole edge end of the through hole 1a.
【０００９】図１でセラミック軸１が回転される時は、
歯車７が図示しない駆動源で回転駆動されて回転体６に
伝達され、この回転が結合用ピン５を介してセラミック
軸１に伝達されて回転される。セラミック軸１の回転で
カップリング13と金属軸８とタ−ンテ−ブル９が回転さ
れる。この時結合用ピン５がセラミック軸１の貫通孔1a
の孔縁端部に当たることがない。In FIG. 1, when the ceramic shaft 1 is rotated,
The gear 7 is rotationally driven by a drive source (not shown) and transmitted to the rotating body 6, and the rotation is transmitted to the ceramic shaft 1 via the coupling pin 5 and rotated. The rotation of the ceramic shaft 1 rotates the coupling 13, the metal shaft 8 and the turntable 9. At this time, the connecting pin 5 is inserted into the through hole 1a of the ceramic shaft 1.
Does not hit the edge of the hole.
【００１０】上記のようにセラミック軸と回転体との結
合構造が構成されると、セラミック軸１の貫通孔1aの孔
縁端部に集中的に荷重が掛からないから端部が欠けるこ
とがない。又、貫通孔1aは丸孔で平らな通し孔で形成さ
れているからセラミック軸１の強度が損なわれず、孔加
工が平易になる。When the connecting structure of the ceramic shaft and the rotating body is formed as described above, the load is not concentrated on the edge of the through hole 1a of the ceramic shaft 1, so that the end is not chipped. . Further, since the through-hole 1a is a round hole and formed as a flat through-hole, the strength of the ceramic shaft 1 is not impaired, and the hole processing becomes simple.
【００１１】図４は図１の変形例で、本考案を実施した
タ−ンテ−ブル駆動系部分の断面側面図である。FIG. 4 is a cross-sectional side view of a modification of the embodiment shown in FIG.
【００１２】図４の変形例は、図１のカップリング13と
金属軸８が省略されてセラミック軸１の上端にタ−ンテ
−ブル９が固定されている。In the modification of FIG. 4, the coupling 13 and the metal shaft 8 of FIG. 1 are omitted, and the turntable 9 is fixed to the upper end of the ceramic shaft 1.
【００１３】図５は結合用ピン５の変形例で、セラミッ
ク軸と結合用ピンを示す要部拡大断面平面図である。FIG. 5 is an enlarged sectional plan view of a principal part showing a modification of the connecting pin 5 and showing a ceramic shaft and the connecting pin.
【００１４】図５の結合用ピン５は、太い部分である端
部５ａと細い部分５ｃ及び太い部分である端部５ｂと細
い部分５ｄの間に夫々他の細い部分５ｅ、５ｆが形成さ
れている。なお、他の残り部分は、端部５ａ、５ｂと同
様に太い部分としている。この細い部分５ｅ、５ｆが形
成されることで細い部分５ｃ、５ｄへの応用集中が緩和
される。The coupling pin 5 shown in FIG. 5 has a thick end 5a and a thin portion 5c, and another thin portion 5e and 5f formed between a thick end 5b and a thin portion 5d. I have. The remaining portions are the same as the ends 5a and 5b.
It is a thick part. By forming the thin portions 5e and 5f, concentration of application to the thin portions 5c and 5d is eased.
【００１５】図６は結合用ピンの他の変形例で、（ａ）
は平面図、（ｂ）は側面図である。FIG. 6 shows another modification of the connecting pin, in which (a)
Is a plan view, and (b) is a side view.
【００１６】図６の結合用ピン５′は板材で形成されて
いる。結合用ピン５′は幅ｄに対し厚さｔがｔ＜ｄで形
成されている。結合用ピン５′には両端部5g、5hと両端
より内側に細い部分5i、5jが形成されている。結合用ピ
ン５′が板材で形成されると、製作コストが安価にな
る。The connecting pin 5 'shown in FIG. 6 is formed of a plate material. The coupling pin 5 'is formed so that the thickness t is t <d with respect to the width d. The coupling pin 5 'is formed with both ends 5g and 5h and narrow portions 5i and 5j inside the both ends. When the connecting pin 5 'is formed of a plate material, the manufacturing cost is reduced.
【００１７】図６の結合用ピン５′がセラミック軸１の
貫通孔1aに挿通された時、上記図２と同様に両端部5g、
5hは貫通孔1aから凸出されると共に、細い部分5i、5jは
夫々貫通孔1aの端部と対向するように挿通される。結合
用ピン５′が挿通されるセラミック軸１の貫通孔1aは丸
孔以外の平らな通し孔で形成してもよい。When the connecting pin 5 'of FIG. 6 is inserted through the through hole 1a of the ceramic shaft 1, both ends 5g,
5h is projected from the through hole 1a, and the thin portions 5i and 5j are inserted so as to face the ends of the through hole 1a. The through-hole 1a of the ceramic shaft 1 through which the coupling pin 5 'is inserted may be formed as a flat through-hole other than a round hole.
【００１８】上記説明ではセラミック軸と回転体との結
合構造をタ−ンテ−ブル駆動系部分に実施した例で述べ
たが、他の装置に実施してもよい。In the above description, an example has been described in which the coupling structure between the ceramic shaft and the rotating body is applied to the turntable drive system, but it may be applied to other devices.
【００１９】[0019]
【考案の効果】本考案は上述のように構成されたから、
セラミック軸の貫通孔の孔縁端部に集中的に荷重が掛か
らないので端部が欠けることがない。又、貫通孔は平ら
な通し孔で形成されているからセラミック軸の強度が損
なわれず、孔加工が平易になる等実用上優れた効果を奏
するセラミック軸と回転体との結合構造を提供すること
が出来る。[Effect of the Invention] Since the present invention is configured as described above,
Since the load is not applied intensively to the edge of the through hole of the ceramic shaft, the end is not chipped. Further, the through hole is formed by a flat through hole, so that the strength of the ceramic shaft is not impaired and the hole is formed easily. Can be done.
【図１】本考案を実施したタ−ンテ−ブル駆動系部分の
断面側面図である。FIG. 1 is a sectional side view of a turntable driving system according to the present invention.
【図２】セラミック軸と回転体と結合用ピンを示す要部
拡大断面側面図である。FIG. 2 is an enlarged sectional side view of a main part showing a ceramic shaft, a rotating body, and a connecting pin.
【図３】セラミック軸と回転体と結合用ピンを示す要部
拡大断面平面図である。FIG. 3 is an enlarged cross-sectional plan view of a main part showing a ceramic shaft, a rotating body, and a coupling pin.
【図４】図１の変形例で、本考案を実施したタ−ンテ−
ブル駆動系部分の断面側面図である。FIG. 4 is a modified example of FIG.
It is a sectional side view of a bull drive system part.
【図５】結合用ピンの変形例で、セラミック軸と結合用
ピンを示す要部拡大断面平面図である。FIG. 5 is an enlarged cross-sectional plan view of a main part showing a ceramic shaft and a connecting pin in a modification of the connecting pin.
【図６】結合用ピンの他の変形例で、（ａ）は平面図、
（ｂ）は側面図である。6A is a plan view of another modification of the coupling pin, FIG.
(B) is a side view.
【図７】従来のセラミック軸と回転体と結合用ピンの分
解斜視図である。FIG. 7 is an exploded perspective view of a conventional ceramic shaft, a rotating body, and a connecting pin.
【図８】従来のセラミック軸と結合用ピンの要部拡大断
面平面である。FIG. 8 is an enlarged sectional plan view of a main part of a conventional ceramic shaft and a connecting pin.
【図９】従来の他のセラミック軸と結合用ピンの要部拡
大断面平面である。FIG. 9 is an enlarged sectional plan view of a main part of another conventional ceramic shaft and coupling pin.
１ セラミック軸 1a 貫通孔 ５、５′ 結合用ピン 5a、5b、5g、5h 端部 5c、5d、5i、5j 細い部分 ６ 歯車からなる回転体 6a 中心孔 6b 嵌合部 DESCRIPTION OF SYMBOLS 1 Ceramic shaft 1a Through-hole 5, 5 'Coupling pin 5a, 5b, 5g, 5h End part 5c, 5d, 5i, 5j Thin part 6 Rotating body made of gear 6a Center hole 6b Fitting part
Claims (1)
けて挿通して該結合用ピンの両端部を該貫通孔から凸出
したセラミック軸と、上記セラミック軸を挿通する中心
孔と、この中心孔と重なり上記結合用ピンをわずかな隙
間を設けて嵌合させる嵌合部を有する歯車等の回転体と
から成り、上記貫通孔は平らな通し孔で形成し、上記結
合用ピンに太い部分と細い部分とを設け、上記太い部分
を上記貫通孔の中間部と近接させると共に上記細い部分
を上記貫通孔の両端部とそれぞれ対向させたセラミック
軸と回転体との結合構造。1. A small gap is provided between a connecting pin and a through hole.
Only a ceramic shaft that issued convex opposite ends of the coupling pin from the through hole by inserting in a central hole for inserting the ceramic shaft, slight clearance to the central hole and heavy Do Ri the coupling pin
Consists of a rotating body such as a gear having a mating portion for fitting is provided between said through-hole is formed by a flat through-hole, provided a thick portion and a thin portion in the coupling pin, the thick portions
Coupling structure of the thin portion and the both end portions and the ceramic shaft respectively are opposed to the through hole and the rotating body together to close the intermediate portion of the through hole a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991098421U JP2571809Y2 (en) | 1991-11-05 | 1991-11-05 | Connection structure between ceramic shaft and rotating body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991098421U JP2571809Y2 (en) | 1991-11-05 | 1991-11-05 | Connection structure between ceramic shaft and rotating body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0545249U JPH0545249U (en) | 1993-06-18 |
| JP2571809Y2 true JP2571809Y2 (en) | 1998-05-20 |
Family
ID=14219358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991098421U Expired - Fee Related JP2571809Y2 (en) | 1991-11-05 | 1991-11-05 | Connection structure between ceramic shaft and rotating body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2571809Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6450763B1 (en) * | 2000-11-17 | 2002-09-17 | General Electric Company | Replaceable variable stator vane for gas turbines |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5790904U (en) * | 1980-11-26 | 1982-06-04 | ||
| JPS6110902U (en) * | 1984-06-26 | 1986-01-22 | トヨタ自動車株式会社 | Ceramic bottle wheel fall prevention device |
| JPS6333709U (en) * | 1986-08-21 | 1988-03-04 | ||
| JPH01303317A (en) * | 1988-05-30 | 1989-12-07 | Kobe Steel Ltd | Power transmitting shaft |
-
1991
- 1991-11-05 JP JP1991098421U patent/JP2571809Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0545249U (en) | 1993-06-18 |
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