JPH0320578Y2 - - Google Patents
Info
- Publication number
- JPH0320578Y2 JPH0320578Y2 JP1984180834U JP18083484U JPH0320578Y2 JP H0320578 Y2 JPH0320578 Y2 JP H0320578Y2 JP 1984180834 U JP1984180834 U JP 1984180834U JP 18083484 U JP18083484 U JP 18083484U JP H0320578 Y2 JPH0320578 Y2 JP H0320578Y2
- Authority
- JP
- Japan
- Prior art keywords
- drive shaft
- shim
- rotating body
- hole
- diameter
- 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
Links
- 230000037431 insertion Effects 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 4
- 229910001369 Brass Inorganic materials 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
Landscapes
- Bolts, Nuts, And Washers (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は例えばエンジンと水ポンプの結合部等
に適用される回転体と駆動軸の取付装置に関す
る。[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a mounting device for a rotating body and a drive shaft, which is applied to, for example, a joint between an engine and a water pump.
（従来技術及びその問題点）
一般に、エンジンの駆動軸（クランク軸）に水
ポンプの羽根車（回転体）を取り付けるための取
付装置としては次の２種が採用される。即ち、第
１の取付装置は駆動軸の先端部外周面にねじ部を
設けると共に羽根車のボス部にねじ孔を設け、該
ねじ孔を前記ねじ部に螺装して締め付けることに
より、前記羽根車を駆動軸に取り付けるものであ
る。また、第２の取付装置は第１図に示すように
エンジン１の駆動軸（クランク軸）２の外周に、
水ポンプ３の羽根車（回転体）４のボス部５に設
けたキー溝付有底円筒状の取付孔５ａを嵌合し、
該取付孔５ａのキー溝５ｂと駆動軸２のキー溝２
ａとの間に亘つてキー６を嵌合した後、取付孔５
ａの底壁７のボルト挿通孔７ａを介して前記駆動
軸２のねじ孔２ｂにボルト８を螺装して締め付け
ることにより、羽根車４を駆動軸２に取り付ける
ものである。(Prior Art and its Problems) Generally, the following two types of mounting devices are employed for mounting the impeller (rotating body) of a water pump to the drive shaft (crankshaft) of an engine. That is, the first mounting device provides a threaded portion on the outer circumferential surface of the tip end of the drive shaft, and also provides a threaded hole in the boss portion of the impeller, and screws the threaded hole into the threaded portion and tightens it. It attaches the car to the drive shaft. Further, as shown in FIG. 1, the second mounting device is attached to the outer periphery of the drive shaft (crankshaft) 2 of the engine 1.
A cylindrical mounting hole 5a with a key groove and a bottom provided in the boss portion 5 of the impeller (rotating body) 4 of the water pump 3 is fitted,
The keyway 5b of the mounting hole 5a and the keyway 2 of the drive shaft 2
After fitting the key 6 between the holes 5 and 5,
The impeller 4 is attached to the drive shaft 2 by threading and tightening the bolt 8 into the screw hole 2b of the drive shaft 2 through the bolt insertion hole 7a of the bottom wall 7 of FIG.
ところで、この種の水ポンプにおいては、羽根
車４とそのケーシング（ボリユートケース）９と
のクリアランスＣ（第１図参照）がポンプ性能に
大きく影響する。 By the way, in this type of water pump, the clearance C (see FIG. 1) between the impeller 4 and its casing (volume case) 9 has a large effect on pump performance.
このため本出願人は先に前述の第１の取付装置
において、駆動軸に形成した羽根車取付用の段部
と、その羽根車の取付座面との間に、該羽根車の
軸線方向の取付位置を調整する黄銅等の薄板より
なるリング状のシムを介装することにより、羽根
車とケーシング（ボリユートケース）とのクリア
ランスを適正状態に調整し得るようにした回転体
と駆動軸の取付装置を出願した。（実願昭58−
87092号）。 For this reason, the present applicant previously proposed that in the above-mentioned first mounting device, between the step portion for mounting the impeller formed on the drive shaft and the mounting seat surface of the impeller, the axial direction of the impeller By inserting a ring-shaped shim made of a thin plate of brass or other material to adjust the mounting position, the clearance between the impeller and the casing (volume case) can be adjusted to an appropriate state. An application was filed for the mounting device. (Jitsugan 58-
No. 87092).
しかし、第２の取付装置においては、羽根車４
の軸線方向への移動を駆動軸２の端面２ｃで規制
する構造であるため、取付孔５ａの内周面にキー
溝５ｂを加工する必要があり、これに伴い、該キ
ー溝５ｂより大径なキー溝加工用カツタの逃げ溝
となる環状溝１０を取付孔５ａの底壁７側端内部
７ｂに加工しなければならない。このため、第６
図に示すような従来の只単なるリング状のシム１
１ａを用いた場合、該シム１１ａを取付孔５ａの
開口面側（反底壁側）から底壁７側端内部７ｂへ
挿入したとき、第７図に示す如く環状溝１０の底
面１０ａにシム１１ａの外周縁が接触した状態、
即ち、シム１１ａが環状溝１０内に落ち込んだ状
態となつて、取付孔５ａの底壁７のボルト挿通孔
７ａ及び駆動軸２のねじ孔２ｂの一部がシム１１
ａにて閉塞されることによつて、ボルト８がシム
１１ａに干渉してボルト８をねじ孔２ｂに螺装す
ることができないため、このような取付作業があ
ると、量産性が著しく低下するという問題があ
る。 However, in the second mounting device, the impeller 4
Since the structure is such that the movement of the drive shaft 2 in the axial direction is restricted by the end surface 2c of the drive shaft 2, it is necessary to machine a keyway 5b on the inner peripheral surface of the mounting hole 5a. An annular groove 10, which serves as an escape groove for a keyway machining cutter, must be formed in the inside 7b of the bottom wall 7 side end of the mounting hole 5a. For this reason, the sixth
Conventional simple ring-shaped shim 1 as shown in the figure
1a, when the shim 11a is inserted from the opening side (opposite the bottom wall side) of the mounting hole 5a into the inside 7b of the bottom wall 7 side, the shim 11a is inserted into the bottom surface 10a of the annular groove 10 as shown in FIG. A state in which the outer peripheral edge of 11a is in contact,
That is, the shim 11a is depressed into the annular groove 10, and a portion of the bolt insertion hole 7a of the bottom wall 7 of the mounting hole 5a and the screw hole 2b of the drive shaft 2 are partially inserted into the shim 11.
By being blocked at a, the bolt 8 interferes with the shim 11a and the bolt 8 cannot be screwed into the screw hole 2b, so such an installation work will significantly reduce mass productivity. There is a problem.
斯かる問題を解消するために、内孔径D1を拡
大したシム１１ｂを設け、該シム１１ｂが環状溝
１０に落ち込んでもボルト挿通孔７ａ及びねじ孔
２ｂが閉塞されないようにした場合、第８図に示
す如くシム１１ｂの下側部分が駆動軸２の端面２
ｃの外周側縁部から外周側に外れて面接触せず、
ボルト８の締め付け後において、羽根車４が駆動
軸２の軸線に対して傾動する虞がある。 In order to solve this problem, a shim 11b with an enlarged inner hole diameter D1 is provided so that even if the shim 11b falls into the annular groove 10, the bolt insertion hole 7a and the screw hole 2b are not blocked, as shown in FIG. As shown in FIG.
It comes off from the outer circumferential edge of c to the outer circumferential side and there is no surface contact,
After the bolts 8 are tightened, there is a risk that the impeller 4 will tilt with respect to the axis of the drive shaft 2.
斯かる不具合を解消するためにシム１１ｂの外
径D2を拡大した場合、取付孔５ａの直径D3より
大径となるため、該取付孔５ａの開口面側から底
壁７側端内部７ｂ側へシム１１ｂを挿入すること
ができなくなる。 If the outer diameter D 2 of the shim 11b is enlarged to solve this problem, it will become larger than the diameter D 3 of the mounting hole 5a. It becomes impossible to insert the shim 11b to the side.
このような問題があるため従来、第２の取付装
置においてシムを羽根車の取付孔の底壁内面と駆
動軸の端面との間に介装して、羽根車と駆動軸の
軸線方向の相対位置を調整するということは量産
ベースでは、あまり行なわれなかつた。 Because of this problem, conventionally, in the second mounting device, a shim is interposed between the inner surface of the bottom wall of the impeller mounting hole and the end surface of the drive shaft to prevent the impeller and the drive shaft from moving in the axial direction. Adjusting the position was rarely done on a mass-produced basis.
（考案の目的）
本考案は上記事情に鑑みてなされたもので、前
述の第２の取付装置において作業効率よく回転体
の取付孔の底壁内面と駆動軸の端面との間にシム
を介装して、回転体と駆動軸の軸線方向の相対位
置を調整し得るようにした回転体と取付軸の取付
装置を提供することを目的とするものである。(Purpose of the invention) The present invention has been made in view of the above-mentioned circumstances, and the above-mentioned second mounting device uses a shim interposed between the inner surface of the bottom wall of the mounting hole of the rotating body and the end face of the drive shaft to improve work efficiency. It is an object of the present invention to provide a mounting device for a rotating body and a mounting shaft, which can adjust the relative position of the rotating body and a drive shaft in the axial direction.
（課題を解決するための手段）
上記目的を達成するため本考案においては、回
転体に穿設されたキー溝付有底円筒状の取付孔に
駆動軸を挿入してキー止めし、前記取付孔の底壁
内面と前記駆動軸の端面との間に、前記回転体と
前記駆動軸との軸線方向の相対位置を調整するリ
ング状のシムを介装し、前記取付孔の底壁のボル
ト挿通孔、及び前記シムの内孔を順次介して前記
駆動軸のねじ孔にボルトを螺装して締め付けるこ
とにより、前記回転体を前記駆動軸に一体回転自
在に取り付ける回転体と駆動軸の取付装置におい
て、前記シムは、リング状のシム本体の外周に放
射状に複数の突部を突設してなり、これら突部の
うち少なくともひとつは前記キー溝内をその軸線
方向に移動自在に挿通し得ると共に、これら突部
の突出長を、これら突部の突出端を結ぶ仮想円直
径が前記取付孔の底壁側端内部に設けられた前記
キー溝の半径方向外端より大径な環状溝の直径よ
り小さく且つ前記取付孔の直径より大きくなる如
く設定し、更に、前記シムの内孔径を、前記突部
の突出端面が前記環状溝の底面に接触した状態に
おいて前記駆動軸のねじ孔へ螺装されるボルトが
干渉しないように大きく且つ前記駆動軸の端面の
外周縁部から外周側に外れないように小さくなる
範囲内に設定したものである。(Means for Solving the Problems) In order to achieve the above object, in the present invention, a drive shaft is inserted into a cylindrical mounting hole with a key groove and a bottom formed in a rotating body, and is locked with a key. A ring-shaped shim for adjusting the relative position of the rotating body and the drive shaft in the axial direction is interposed between the inner surface of the bottom wall of the hole and the end surface of the drive shaft, and the bolts on the bottom wall of the mounting hole are fixed. Attaching the rotating body to the drive shaft so that the rotating body can rotate integrally with the drive shaft by threading and tightening a bolt into the screw hole of the drive shaft through the insertion hole and the inner hole of the shim in order. In the device, the shim has a plurality of protrusions radially protruding from the outer periphery of a ring-shaped shim body, and at least one of these protrusions is inserted through the keyway so as to be movable in the axial direction thereof. At the same time, the protrusion length of these protrusions is determined by an annular groove in which the diameter of an imaginary circle connecting the protruding ends of these protrusions is larger than the radially outer end of the keyway provided inside the bottom wall side end of the mounting hole. and the inner diameter of the shim is set to be smaller than the diameter of the shim and larger than the diameter of the mounting hole, and further, the inner diameter of the shim is set to be smaller than the diameter of the shim and larger than the diameter of the mounting hole. It is set within a range that is large enough to prevent the screwed bolts from interfering with each other and small enough to prevent them from coming off the outer peripheral edge of the end face of the drive shaft.
（作用）
シムを回転体の取付孔の底壁側内部に、その反
底壁側開口部から挿入するに際し、シムを取付孔
開口面に対して斜めに傾けた状態で、その突部の
１つを取付孔内のキー溝内に挿通させるようにす
ることにより、外周に突部を突設したものであり
ながら、取付孔底面部分まで容易に挿通すること
ができ、奥の環状溝に落ち込ませることにより底
面部分に面接触自在な姿勢に正される。(Function) When inserting the shim into the bottom wall side of the mounting hole of the rotating body from the opening on the side opposite to the bottom wall, the shim is tilted obliquely to the opening surface of the mounting hole, and one of its protrusions is inserted. By inserting the key into the key groove in the mounting hole, even though the protrusion is provided on the outer periphery, it can be easily inserted to the bottom of the mounting hole and will not fall into the annular groove at the back. By doing so, the bottom part can be adjusted to a position where surface contact can be made freely.
また、シムを取付孔の底壁側内部に挿入した状
態において、シムが環状溝に落ち込んだ状態とな
つても、突部があることによつて、回転体のボル
ト挿通孔及び駆動軸のねじ孔がシムにより閉塞さ
れることがないので、ボルトがシムに干渉するこ
とがない。更に、シムを挿入後、取付孔に駆動軸
を挿入してキー止めした状態では、シムが駆動軸
の端面から外周側に外れることがなく全周に亘つ
て駆動軸端面に面接触するので、回転体が駆動軸
に対して傾動して取り付けられることがなくな
る。 In addition, even if the shim falls into the annular groove when inserted into the bottom wall side of the mounting hole, the protrusion prevents the bolt insertion hole of the rotating body and the drive shaft from tightening. Since the hole is not blocked by the shim, the bolt will not interfere with the shim. Furthermore, after inserting the shim, when the drive shaft is inserted into the mounting hole and locked, the shim does not come off the end surface of the drive shaft toward the outer circumference and is in surface contact with the end surface of the drive shaft over the entire circumference. The rotating body is no longer attached tilted relative to the drive shaft.
（実施例）
以下、本考案の一実施例を第１図乃至第５図に
基づいて説明する。なお、上述した従来と同一部
分には同一符号を付して説明する。第５図は本考
案の取付装置に用いるシムの正面図で、同図中１
１はシムで、従来同様に黄銅等の薄板よりなるも
ので、リング状のシム本体１１1の外周に周方向
に等間隔を存して放射状に複数個（本実施例では
４個）の舌片状の突部１１2を一体的に突設して
構成されている。これら突部１１2はキー溝５ｂ
内をその軸線方向に移動自在に挿通し得る。これ
ら突部１１2の突出長は、これら突部１１2の突出
端を結ぶ仮想円１２の直径D4が羽根車４のボス
部５の取付孔５ａに設けられたキー溝５ｂを加工
するときのカツタの逃げ溝となる環状溝１０の直
径D5（第２図及び第４図参照）より小さく且つ取
付孔５ａの直径D3（第２図参照）より大きくなる
如く設定されている。又、シム本体１１1の外径
D6は取付孔５ａの直径D3より小さく且つ内径D7
は突部１１2の突出端面が環状溝１０の底面１０
ａに第２図に示す如く接触した状態、即ち、環状
溝１０にシム１１が落ち込んだ状態において、駆
動軸２のねじ孔２ｂへのボルト８の螺装に対して
このボルト８が干渉しない程度の大きさに且つ駆
動軸２の端面２ｃの外周縁部から外周側に外れる
ことなく全周に亘り面接触状態を保つ程度の大き
さに設定されている。また、本出願人が先に提案
した実願昭58−87092号のように内周側に突起を
設ける場合は、内径D3はこの突起の内周端を結
ぶ仮想円の直径に対応する。尚、第１図中１３は
メカニカルシールである。(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 5. In addition, the same reference numerals are given to the same parts as those of the above-mentioned conventional art. Figure 5 is a front view of the shim used in the mounting device of the present invention.
Reference numeral 1 denotes a shim, which is made of a thin plate of brass or the like as in the past, and has a plurality of tongues (four in this embodiment) arranged radially around the outer periphery of the ring-shaped shim body 11 at equal intervals in the circumferential direction. It is constructed by integrally protruding a piece-shaped protrusion 11 2 . These protrusions 11 2 are key grooves 5b
It can be inserted through the inside of the tube so as to be movable in the axial direction. The protrusion length of these protrusions 11 2 is the diameter D 4 of the virtual circle 12 connecting the protruding ends of these protrusions 11 2 when machining the keyway 5b provided in the attachment hole 5a of the boss portion 5 of the impeller 4. It is set to be smaller than the diameter D 5 (see FIGS. 2 and 4) of the annular groove 10, which serves as a relief groove for the cutter, and larger than the diameter D 3 (see FIG. 2) of the mounting hole 5a. Also, the outer diameter of the shim body 11 1
D 6 is smaller than the diameter D 3 of the mounting hole 5a and the inner diameter D 7
The protruding end surface of the protrusion 11 2 is the bottom surface 10 of the annular groove 10.
a to the extent that the bolt 8 does not interfere with the threading of the bolt 8 into the threaded hole 2b of the drive shaft 2 in the state in which the shim 11 is in contact with the annular groove 10 as shown in FIG. The drive shaft 2 is set to such a size that it does not come off the outer peripheral edge of the end surface 2c of the drive shaft 2 toward the outer periphery and maintains a state of surface contact over the entire circumference. Further, when a protrusion is provided on the inner circumferential side as in Utility Application No. 58-87092 previously proposed by the present applicant, the inner diameter D3 corresponds to the diameter of an imaginary circle connecting the inner circumferential ends of this protrusion. In addition, 13 in FIG. 1 is a mechanical seal.
上記の構成においてシム１１を羽根車４の取付
孔５ａの反底壁７側端開口部から底壁７側端の内
部７ｂに、開口面に対して斜めに傾けた状態でそ
の突部１１2の１個を取付孔５ａのキー溝５ｂ内
に通して挿通し、環状溝１０に落ち込ませること
によつて底面１０ａに面接触自在な姿勢にしてお
く。しかる後、取付孔５ａ内に駆動軸２を挿入し
て羽根車４の取付孔５の底壁７のボルト挿通孔７
ａ及びシム１１の内孔を順次介して、ボルト８を
駆動軸２のねじ孔２ｂに螺装して締め付けること
により、羽根車４を駆動軸２に一体回転自在に取
り付けることができるものである。なお、キー６
は、例えば駆動軸２の挿入に際してあらかじめ取
付孔５ａのキー溝５ｂに挿着しておけばよい。し
かして、シム１１を取付孔５の底壁７側端内部７
ｂに挿入した状態において、シム１１の突部１１
２が環状溝１０の底面１０ａに接触した状態、即
ち、シム１１が環状溝１０に落ち込んだ状態とな
つても、第２図に示す如くボルト挿通孔７ａ及び
ねじ孔２ｂがシム１１にて閉塞されることがない
ため、ねじ孔２ｂへのボルト８の螺装に対してシ
ム１１が干渉することがない。更に、第２図に示
す如くシム１１を挿入後、取付孔５ａを駆動軸２
の外周に嵌合してキー６をキー溝２ａと５ｂとの
間に嵌合した状態では、シム１１は駆動軸２の端
面２ｃの外周縁部より外周側に外れることがな
く、全周に亘つて面接触状態を保つことができる
ので、羽根車４が駆動軸２の軸線に対して傾動す
ることがない。 In the above configuration, the shim 11 is moved from the opening at the end opposite to the bottom wall 7 of the mounting hole 5a of the impeller 4 to the inside 7b at the end of the bottom wall 7, with the protrusion 11 2 being tilted obliquely with respect to the opening surface. One of them is inserted through the key groove 5b of the mounting hole 5a and dropped into the annular groove 10, so that it is brought into a position where it can freely make surface contact with the bottom surface 10a. After that, the drive shaft 2 is inserted into the mounting hole 5a, and the bolt insertion hole 7 of the bottom wall 7 of the mounting hole 5 of the impeller 4 is inserted.
The impeller 4 can be integrally and rotatably attached to the drive shaft 2 by threading and tightening the bolt 8 into the screw hole 2b of the drive shaft 2 through the inner hole of the drive shaft 2 and the shim 11. . In addition, key 6
may be inserted into the keyway 5b of the mounting hole 5a in advance, for example, when inserting the drive shaft 2. Therefore, the shim 11 is attached to the inside 7 of the bottom wall 7 side end of the mounting hole 5.
In the state inserted into b, the protrusion 11 of the shim 11
Even if the shim 11 is in contact with the bottom surface 10a of the annular groove 10, that is, the shim 11 is depressed into the annular groove 10, the bolt insertion hole 7a and the screw hole 2b are blocked by the shim 11 as shown in FIG. Therefore, the shim 11 does not interfere with the screwing of the bolt 8 into the screw hole 2b. Furthermore, as shown in FIG. 2, after inserting the shim 11, the mounting hole 5a is inserted into the drive shaft 2.
When the key 6 is fitted between the key grooves 2a and 5b, the shim 11 does not come off from the outer periphery of the end surface 2c of the drive shaft 2, and is Since the surface contact state can be maintained throughout, the impeller 4 does not tilt with respect to the axis of the drive shaft 2.
尚、上記実施例においてはエンジン１の駆動軸
２と水ポンプ３の羽根車４の取り付けに適用した
場合につき説明したが、これに限られることな
く、回転体を駆動軸に一体回転自在に取り付ける
に際して、シムにより回転体と駆動軸の軸線方向
の相対位置を調整する必要のあるものに対して本
考案は適用可能である。 In the above embodiment, the case where the drive shaft 2 of the engine 1 and the impeller 4 of the water pump 3 are attached has been described, but the invention is not limited to this, and the rotating body may be attached to the drive shaft so as to be rotatable as one unit. In this case, the present invention is applicable to those in which the relative position of the rotating body and the drive shaft in the axial direction needs to be adjusted using a shim.
（考案の効果）
以上詳述した如く本考案は、回転体に穿設され
たキー溝付有底円筒状の取付孔に駆動軸を挿入し
てキー止めし、前記取付孔の有壁内面と前記駆動
軸の端面との間に、前記回転体と前記駆動軸との
軸線方向の相対位置を調整するリング状のシムを
介装し、前記取付孔の底壁のボルト挿通孔、及び
前記シムの内孔を順次介して前記駆動軸のねじ孔
にボルトを螺装して締め付けることにより、前記
回転体を前記駆動軸に一体回転自在に取り付ける
回転体と駆動軸の取付装置において、前記シム
は、リング状のシム本体の外周に放射状に複数の
突部を突設してなり、これら突部のうち少なくと
もひとつは前記キー溝内をその軸線方向に移動自
在に挿通し得ると共に、これら突部の突出長を、
これら突部の突出端を結ぶ仮想円直径が前記取付
孔の底壁側端内部に設けられた前記キー溝の半径
方向外端より大径な環状溝の直径より小さく且つ
前記取付孔の直径より大きくなる如く設定し、更
に、前記シムの内孔径を、前記突部の突出端面が
前記環状溝の底面に接触した状態において前記駆
動軸のねじ孔へ螺装されるボルトが干渉しないよ
うに大きく且つ前記駆動軸の端面の外周縁部から
外周側に外れないように小さくなる範囲内に設定
したことを特徴とするものである。(Effects of the invention) As detailed above, the present invention has a drive shaft inserted and keyed into a cylindrical mounting hole with a key groove and a bottom bored in a rotating body, and a walled inner surface of the mounting hole. A ring-shaped shim for adjusting the relative position in the axial direction between the rotating body and the drive shaft is interposed between the end face of the drive shaft, and a bolt insertion hole in the bottom wall of the mounting hole and the shim are provided. In the rotating body and drive shaft mounting device, the rotary body is integrally rotatably attached to the drive shaft by threading and tightening bolts into screw holes of the drive shaft through inner holes of the shim. , a ring-shaped shim body has a plurality of protrusions projecting radially from the outer periphery of the shim body, at least one of these protrusions can be inserted movably in the axial direction of the keyway; The protrusion length of
The diameter of an imaginary circle connecting the protruding ends of these protrusions is smaller than the diameter of an annular groove that is larger in diameter than the radially outer end of the key groove provided inside the bottom wall side end of the mounting hole, and is larger than the diameter of the mounting hole. Furthermore, the inner hole diameter of the shim is set to be large enough so that the bolt threaded into the screw hole of the drive shaft does not interfere when the protruding end surface of the protrusion is in contact with the bottom surface of the annular groove. Further, it is characterized in that it is set within a range that is small enough not to deviate from the outer periphery of the end face of the drive shaft toward the outer periphery.
従つて、シムを回転体の取付孔の底壁側内部
に、その反底壁側開口部から挿入するに際し、シ
ムを取付孔開口面に対して斜めに傾けた状態で、
その突部の１つを取付孔内のキー溝内に挿通させ
るようにすることにより、外周に突部を突設した
ものでありながら、取付孔底面部分まで容易に挿
通することができ、奥の環状溝に落ち込ませるこ
とにより底面部分に面接触自在な姿勢に正され
る。 Therefore, when inserting the shim into the bottom wall side of the mounting hole of the rotating body from the opening on the side opposite to the bottom wall, the shim is tilted obliquely with respect to the opening surface of the mounting hole.
By inserting one of the protrusions into the key groove in the mounting hole, even though the protrusion is provided on the outer periphery, it can be easily inserted to the bottom of the mounting hole. By dropping it into the annular groove, it is adjusted to a position where it can freely make surface contact with the bottom part.
また、シムを取付孔の底壁側内部に挿入した状
態において、シムが環状溝に落ち込んだ状態とな
つても、突部があることによつて、回転体のボル
ト挿通孔及び駆動軸のねじ孔がシムにより閉塞さ
れることがないので、ボルトがシムに干渉するこ
とがない。更に、シムを挿入後、取付孔に駆動軸
を挿入してキー止めした状態では、シムが駆動軸
の端面から外周側に外れることがなく全周に亘つ
て駆動軸端面に面接触するので、回転体が駆動軸
に対して傾動して取り付けられることがなくな
る。 In addition, even if the shim falls into the annular groove when inserted into the bottom wall side of the mounting hole, the protrusion prevents the bolt insertion hole of the rotating body and the drive shaft from tightening. Since the hole is not blocked by the shim, the bolt will not interfere with the shim. Furthermore, after inserting the shim, when the drive shaft is inserted into the mounting hole and locked, the shim does not come off the end surface of the drive shaft toward the outer circumference and is in surface contact with the end surface of the drive shaft over the entire circumference. The rotating body is no longer attached tilted relative to the drive shaft.
第１図は本考案を適用したエンジンと水ポンプ
の連結部分の一部切欠側面図、第２図はその駆動
軸と回転体との結合部の拡大図、第３図は第２図
の−線断面図、第４図は第２図の−線断
面図、第５図は本考案に用いるシムの正面図、第
６図は従来のシムの正面図、第７図及び第８図は
従来の互いに異なるシムを介在させた状態の駆動
軸と回転体との結合部の拡大図である。
２……駆動軸、２ｂ……ねじ孔、４……羽根車
（回転体）、５ａ……取付孔、５ｂ……キー溝、６
……キー、７……底壁、７ａ……ボルト挿通孔、
７ｂ……底壁側端内部、８……ボルト、１０……
環状溝、１０ａ……環状溝底面、１１……シム、
１１1……シム本体、１１2……突部、D3……取付
孔の直径、D4……仮想円の直径、D5……環状溝
の直径、D6……シム本体の外径、D7……シム本
体の内孔径。
Figure 1 is a partially cutaway side view of the connecting part between the engine and water pump to which the present invention is applied, Figure 2 is an enlarged view of the connecting part between the drive shaft and the rotating body, and Figure 3 is the same as in Figure 2. 4 is a sectional view taken along the - line in FIG. 2, FIG. 5 is a front view of the shim used in the present invention, FIG. 6 is a front view of the conventional shim, and FIGS. 7 and 8 are the conventional shims. FIG. 3 is an enlarged view of the connection portion between the drive shaft and the rotating body with different shims interposed therebetween. 2... Drive shaft, 2b... Screw hole, 4... Impeller (rotating body), 5a... Mounting hole, 5b... Keyway, 6
...Key, 7...Bottom wall, 7a...Bolt insertion hole,
7b... Inside the bottom wall side end, 8... Bolt, 10...
Annular groove, 10a...Annular groove bottom, 11...Shim,
11 1 ...Shim body, 11 2 ...Protrusion, D3...Diameter of mounting hole, D4 ... Diameter of virtual circle, D5 ...Diameter of annular groove, D6 ...Outer diameter of shim body , D 7 ... Inner hole diameter of the shim body.
Claims (1)
孔に駆動軸を挿入してキー止めし、前記取付孔の
底壁内面と前記駆動軸の端面との間に、前記回転
体と前記駆動軸との軸線方向の相対位置を調整す
るリング状のシムを介装し、前記取付孔の底壁の
ボルト挿通孔、及び前記シムの内孔を順次介して
前記駆動軸のねじ孔にボルトを螺装して締め付け
ることにより、前記回転体を前記駆動軸に一体回
転自在に取り付ける回転体と駆動軸の取付装置に
おいて、前記シムは、リング状のシム本体の外周
に放射状に複数の突部を突設してなり、これら突
部のうち少なくともひとつは前記キー溝内をその
軸線方向に移動自在に挿通し得ると共に、これら
突部の突出長を、これら突部の突出端を結ぶ仮想
円直径が前記取付孔の底壁側端内部に設けられた
前記キー溝の半径方向外端より大径な環状溝の直
径より小さく且つ前記取付孔の直径より大きくな
る如く設定し、更に、前記シムの内孔径を、前記
突部の突出端面が前記環状溝の底面に接触した状
態において前記駆動軸のねじ孔へ螺装されるボル
トが干渉しないように大きく且つ前記駆動軸の端
面の外周縁部から外周側に外れないように小さく
なる範囲内に設定したことを特徴とする回転体と
駆動軸の取付装置。 A drive shaft is inserted and keyed into a cylindrical mounting hole with a key groove and a bottom bored in a rotating body, and the rotating body and A ring-shaped shim is interposed to adjust the relative position in the axial direction with respect to the drive shaft, and the bolt is inserted into the screw hole of the drive shaft through the bolt insertion hole in the bottom wall of the mounting hole and the inner hole of the shim. In the rotating body and drive shaft mounting device, which attaches the rotating body to the drive shaft so that the rotating body can rotate integrally with the drive shaft by threading and tightening bolts, the shim includes a plurality of radially extending protrusions on the outer periphery of a ring-shaped shim body. At least one of these protrusions can be inserted into the keyway so as to be movable in the axial direction thereof, and the protrusion length of these protrusions is determined by an imaginary line connecting the protruding ends of these protrusions. The circular diameter is set to be smaller than the diameter of an annular groove having a larger diameter than the radially outer end of the keyway provided inside the bottom wall side end of the mounting hole, and larger than the diameter of the mounting hole, and further, The diameter of the inner hole of the shim is set to be large enough so that the bolt threaded into the screw hole of the drive shaft does not interfere when the protruding end surface of the protrusion is in contact with the bottom surface of the annular groove, and the outer periphery of the end surface of the drive shaft. A mounting device for a rotating body and a drive shaft, characterized in that the mounting device is set within a range that is small enough to prevent it from coming off toward the outer periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984180834U JPH0320578Y2 (en) | 1984-11-30 | 1984-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984180834U JPH0320578Y2 (en) | 1984-11-30 | 1984-11-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6196019U JPS6196019U (en) | 1986-06-20 |
| JPH0320578Y2 true JPH0320578Y2 (en) | 1991-05-02 |
Family
ID=30738391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984180834U Expired JPH0320578Y2 (en) | 1984-11-30 | 1984-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0320578Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3093531A2 (en) | 2015-05-14 | 2016-11-16 | Aichi Machine Industry Co. Ltd. | Gap adjustment member, method for coupling gap adjustment member, and transmission |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5239162U (en) * | 1975-09-11 | 1977-03-19 | ||
| JPS5284311A (en) * | 1975-12-29 | 1977-07-13 | Takatoki Nakamura | Mechanism for variable speed transmission of four cycle engine |
-
1984
- 1984-11-30 JP JP1984180834U patent/JPH0320578Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5239162U (en) * | 1975-09-11 | 1977-03-19 | ||
| JPS5284311A (en) * | 1975-12-29 | 1977-07-13 | Takatoki Nakamura | Mechanism for variable speed transmission of four cycle engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3093531A2 (en) | 2015-05-14 | 2016-11-16 | Aichi Machine Industry Co. Ltd. | Gap adjustment member, method for coupling gap adjustment member, and transmission |
| EP3093531A3 (en) * | 2015-05-14 | 2017-03-22 | Aichi Machine Industry Co. Ltd. | Gap adjustment member, method for coupling gap adjustment member, and transmission |
| US10533651B2 (en) | 2015-05-14 | 2020-01-14 | Aichi Machine Industry, Co., Ltd. | Gap adjustment member, method to assemble gap adjustment member, and transmission |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6196019U (en) | 1986-06-20 |
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