JPH0433538A - Mounting structure of motor to drive axis - Google Patents
Mounting structure of motor to drive axisInfo
- Publication number
- JPH0433538A JPH0433538A JP2138994A JP13899490A JPH0433538A JP H0433538 A JPH0433538 A JP H0433538A JP 2138994 A JP2138994 A JP 2138994A JP 13899490 A JP13899490 A JP 13899490A JP H0433538 A JPH0433538 A JP H0433538A
- Authority
- JP
- Japan
- Prior art keywords
- drive shaft
- rotor
- hole
- diameter
- screw
- 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.)
- Pending
Links
- 230000033001 locomotion Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ヘーンボンプを含む片側支持方式の回転ポン
プのロータ等をモータ駆動軸に取り付けための構造に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a structure for attaching a rotor, etc. of a single-side support type rotary pump, including a Hoehn pump, to a motor drive shaft.
従 来 技 術
従来のモータの駆動軸へのロータの取り付は方法として
は、第７図及び第８図に示すように一部が扁平な駆動軸
１と、該駆動軸に嵌挿されるロータ２と、該ロータ２の
側面から軸に向けてあけられたねＵ穴３に螺合されるロ
ックねじ４とからなり、前記ロックねし４により駆動軸
１の扁平部分１ａを締め付は固定するものが知られてい
る。Prior Art The conventional method for attaching a rotor to a drive shaft of a motor is to attach a partially flat drive shaft 1 and a rotor to be fitted onto the drive shaft, as shown in FIGS. 7 and 8. 2, and a lock screw 4 that is screwed into a threaded U hole 3 drilled from the side of the rotor 2 toward the shaft, and the lock screw 4 tightens and fixes the flat portion 1a of the drive shaft 1. something is known.
発明が解決しようとする課題
しかしながら、かかる従来の取り付は方法の場合は、駆
動軸と該駆動軸に嵌合されるロータの穴との間に若干の
隙間が生しると共に、ロックねじにより軸に対して垂直
方向に締め付ける為にロータの重心の位置が駆動軸の回
転中心の位置からずれ、ロータが微妙に偏心運動するこ
とが、ポンプの性能、騒音、寿命に悪影響を与えている
。Problems to be Solved by the Invention However, in the case of such a conventional mounting method, there is a slight gap between the drive shaft and the hole of the rotor that is fitted into the drive shaft, and the lock screw is Because the pump is tightened perpendicularly to the shaft, the center of gravity of the rotor shifts from the center of rotation of the drive shaft, causing slight eccentric movement of the rotor, which adversely affects pump performance, noise, and service life.
またロックねじを駆動軸の平坦部に向けて締め付けると
、わずかではあるがキズが生じる。その後ロックねじを
緩め、軸方向のロータの位置を微調整しようとしても凹
みにねし先端が入り込み、結局光の位置に戻ってしまい
、微妙な調整ができないという不都合がある。Also, if you tighten the lock screw toward the flat part of the drive shaft, a slight scratch will occur. If you then loosen the lock screw and try to finely adjust the rotor's position in the axial direction, the tip of the screw gets stuck in the recess and ends up returning to the light position, making it impossible to make fine adjustments.
そこで本発明はかかる従来技術の欠点に鑑みなされたも
ので、駆動軸に固着するロータに芯ずれが起こらず、ロ
ータの軸方向の位置の微調整が可能な駆動軸への取付構
造を提供することを目的とする。The present invention has been made in view of the drawbacks of the prior art, and provides a structure for mounting the rotor on the drive shaft, which does not cause misalignment of the rotor fixed to the drive shaft and allows fine adjustment of the axial position of the rotor. The purpose is to
問題点を解決するための手段
すなわち本発明は、モータの駆動軸の中心にあけられた
ねし孔と、該駆動軸に係合きれる中央に穴を有するロー
タ等の回転体と、前記回転体を駆動軸に固定するさら状
の頭部を有するねじと、該ねじを駆動軸に螺合すること
により拡径するドーナッツ状の拡径部材とからなり、前
記回転体の中央穴の周囲に拡径部材が挿嵌される凹みを
設けたモータの駆動軸への取付構造により駆動軸の回転
の中心と回転体の重心の位置とを一致させることにより
回転体の偏心運動を助士する。Means for solving the problem, that is, the present invention, includes a screw hole drilled in the center of the drive shaft of a motor, a rotating body such as a rotor having a hole in the center that can be fully engaged with the drive shaft, and the rotating body. Consisting of a screw with a countersunk head that is fixed to the drive shaft, and a donut-shaped diameter expanding member that expands in diameter when the screw is screwed onto the drive shaft, the diameter expands around the central hole of the rotating body. The structure for attaching the motor to the drive shaft, which is provided with a recess into which the member is inserted, helps the eccentric movement of the rotor by aligning the center of rotation of the drive shaft with the center of gravity of the rotor.
またモータの駆動軸を断面正多角形のもので構成するこ
とによりトルクに耐えられるものとした。In addition, the drive shaft of the motor is made of a regular polygon in cross section to withstand torque.
さらに回転体の中央穴の周囲に設けた凹みの内周壁に中
心軸方向に向けて突起を形成することによりロータの軸
方向への振動の発生を低減させることとした。Furthermore, by forming protrusions in the direction of the central axis on the inner circumferential wall of the recess provided around the center hole of the rotating body, it was decided to reduce the occurrence of vibrations in the axial direction of the rotor.
作 用
本発明にかかる取付構造では、駆動軸にロータ等の回転
体を嵌合させ、その後拡径部材の中央穴を貫通させたさ
ら状ねじを駆動軸の中心に設けたねし孔に螺合し、締め
付ける。Function: In the mounting structure according to the present invention, a rotating body such as a rotor is fitted to the drive shaft, and then a countersunk screw passing through the center hole of the diameter-expanding member is screwed into the tapped hole provided at the center of the drive shaft. and tighten.
するとテーパー状のさらの作用により拡径部材は放射方
向に広がりロータの凹みの内周壁面と摺接し、ロータは
駆動軸に固定されることになる。Then, due to the action of the tapered further, the diameter expanding member spreads in the radial direction and comes into sliding contact with the inner circumferential wall surface of the recess of the rotor, and the rotor is fixed to the drive shaft.
またロータを軸方向に微調整するときは、さら状ねじを
緩めた後にロータを軸方向に微ｍｖｉし、ロックねじを
ねし穴に締め付は固定すれば良い。Further, when finely adjusting the rotor in the axial direction, the rotor may be finely adjusted in the axial direction after loosening the countersunk screw, and the locking screw may be tightened and fixed in the tapped hole.
実 施 例
以下に本発明を図面に示された実施例に従って詳細に説
明する。Embodiments The present invention will be explained in detail below according to embodiments shown in the drawings.
図において１０は断面円形のモータ１２の駆動軸（径り
、）であり、該該駆動軸１０に円筒状のロータ１４が嵌
合される。ロータ１４には中央に係合穴１５（径ＯＳ）
があけられており、該係合穴１５の周囲には断面円状の
凹み１６が設けられている。In the figure, reference numeral 10 denotes a drive shaft (diameter) of a motor 12 having a circular cross section, and a cylindrical rotor 14 is fitted onto the drive shaft 10 . Engagement hole 15 (diameter OS) in the center of rotor 14
A recess 16 having a circular cross section is provided around the engagement hole 15.
１８は前記凹み１６に挿嵌される真鍮からなる拡径部材
であり、該拡径部材１８の径り、は凹み１６の径り。18 is a diameter expanding member made of brass that is inserted into the recess 16, and the diameter of the diameter expanding member 18 is the diameter of the recess 16.
より狭く形成きれでいる。２０は前記駆動軸１０の中心
にあけられたねし孔に螺合するための円錐台状のさら部
を有するねしである。尚、拡径部材１８は中央にねじが
貫通できる孔１８ａ（径り、）を有するドーナッツ状で
、一部にスリット１８ｂを有しており、中央の孔１８ａ
の周囲の一方の面は孔１８ａに向けて薄くなるようなテ
ーパー状に形成きれている。It is narrower and less formed. Reference numeral 20 denotes a screw having a truncated conical rib for screwing into a screw hole drilled in the center of the drive shaft 10. The diameter expanding member 18 has a donut shape with a hole 18a (diameter) in the center through which a screw can pass through, and has a slit 18b in a part, and the center hole 18a
One surface around the hole 18a is tapered to become thinner toward the hole 18a.
以上述へた構成において本実施例にかかる取付機構では
、まず駆動軸１０にロータ１４を嵌合し、その位置を微
調整する。次に拡径部材１８の孔を貫通させた状態にて
ロックねじ２０を回転軸１０にあけたねじ穴１０ａに螺
合することにより締め付は固定する。この時ねじ２０の
テーパー状のきらが拡径部材１８のテーパー状の面と当
接する結果、次第に拡径され、該拡径部材１８は凹み１
６の内周壁面と摺接し、しっかりと固定される。In the mounting mechanism according to this embodiment having the configuration described above, first, the rotor 14 is fitted onto the drive shaft 10, and its position is finely adjusted. Next, the locking screw 20 is screwed into the screw hole 10a formed in the rotating shaft 10 while passing through the hole of the diameter-expanding member 18, thereby fixing the tightening. At this time, the tapered edge of the screw 20 comes into contact with the tapered surface of the diameter-expanding member 18, so that the diameter is gradually expanded, and the diameter-expanding member 18 has a recess 1.
It slides into contact with the inner peripheral wall surface of No. 6 and is firmly fixed.
次に第４図に示すものは、駆動軸１０の断面を六角形状
に形成したものであり、かかる構造にしたことにより駆
動軸１０の回転運動のロータ１４へのトルク伝達がより
スムーズになる。Next, the drive shaft 10 shown in FIG. 4 has a hexagonal cross-section, and this structure allows for smoother torque transmission of the rotational motion of the drive shaft 10 to the rotor 14.
第５図に示すものは、本発明にかかる回転体の凹み１６
の構造に関する他の実施例を示すもので、第１図の実施
例の凹み１６の内周壁面の縁部に軸方向に向けて突起１
６ａを連設させたものからなる。What is shown in FIG. 5 is a recess 16 of the rotating body according to the present invention.
This shows another embodiment regarding the structure of the embodiment shown in FIG.
It consists of 6a arranged in series.
この場合には、拡径部材１８は図示しない手段により縮
径させて凹み１６に挿入する。In this case, the diameter expanding member 18 is inserted into the recess 16 after being reduced in diameter by means not shown.
かかる構成にすることにより、ロータ１４は駆動軸１０
と、拡径部材１８と、さら状ねじ２０により締め付は固
定されると共に、ロータ１４のモータに向けて近付こう
とする力に対しては、駆動軸１０へのさら状ねし２０の
螺合により固定される拡径部材１８が拡大しロータ１４
の凹み１６に設けた突起１６ａとが当接するために係止
きれる。With this configuration, the rotor 14 is connected to the drive shaft 10.
The tightening is fixed by the expanding diameter member 18 and the countersunk screw 20, and the countersunk screw 20 is applied to the drive shaft 10 against the force of the rotor 14 approaching the motor. The diameter expanding member 18 fixed by screwing expands and the rotor 14
Since the protrusion 16a provided in the recess 16 comes into contact with the protrusion 16a, the locking can be completed.
第６図に示すものは、拡径部材１８の他の実施例を示す
もので、拡径部材１８の隙間１８ｂを挾む端部がねじれ
て板ばね状に形成されたものである。FIG. 6 shows another embodiment of the diameter-expanding member 18, in which the end portions of the diameter-expanding member 18 that sandwich the gap 18b are twisted to form a leaf spring shape.
かかる構成にした拡径部材１８を第５図に示したロータ
１４の凹み１６に嵌挿することによりロータ１４の軸ｊ
５向への振動を拡径部材１８の板ばねにより吸収するこ
とができる。By fitting the expanded diameter member 18 having such a configuration into the recess 16 of the rotor 14 shown in FIG.
Vibration in five directions can be absorbed by the leaf spring of the diameter expanding member 18.
尚本実施例において駆動軸の形状を断面円形又は六角形
としたがこれに限定されるものではなく、正多角形なら
何でも良い。In this embodiment, the shape of the drive shaft is circular or hexagonal in cross section, but the shape is not limited to this, and any regular polygon may be used.
効 果
以上述へたように本発明にかかる取り付は構造は、従来
の方法では駆動軸とロータの取り付けとの間に芯ずねが
生していたが、軸に対して垂直方向から締め付けるので
はなく、軸方向にねじを締め付は固定するように構成し
たので、芯ずれが生じず、性能の向上、騒音減少、寿命
の長期化を図ることができる。Effects As mentioned above, the mounting structure of the present invention is such that in the conventional method, there is a centering gap between the drive shaft and the rotor mounting, but the mounting structure is tightened from the direction perpendicular to the shaft. Instead, the screws are tightened and fixed in the axial direction, so no misalignment occurs, improving performance, reducing noise, and extending life.
第１図から第６図は本発明の実施例を示すもので、第１
図は本実施例の分解縦断面図、第２図は拡径部材の正面
図、第３図は装着した状態を示す縦断面図、第４図は駆
動軸の他の実施例を示す正面図、第５図は回転体に設け
た凹みの他の実施例を示す縦断面図、第６図は拡径部材
の他の実施例を示す斜視図、第７図は従来技術を示す装
置の縦断面図、第８図は駆動軸の正面断面図である。
１．１０・・・駆動軸 ２，１４・・・ロータ３・
・・ねじ穴 ４・・・ロックねし１２・・・
モータ １５・・・係合穴１６・・・凹み
１８・・・拡径部材１８ａ・・・孔
１８ｂ・・・スリ・ノド２０・・・ねじ1 to 6 show embodiments of the present invention.
The figure is an exploded longitudinal sectional view of this embodiment, Fig. 2 is a front view of the diameter expanding member, Fig. 3 is a longitudinal sectional view showing the installed state, and Fig. 4 is a front view showing another embodiment of the drive shaft. , FIG. 5 is a longitudinal sectional view showing another embodiment of the recess provided in the rotating body, FIG. 6 is a perspective view showing another embodiment of the diameter expanding member, and FIG. 7 is a longitudinal sectional view of a device showing the prior art. The top view and FIG. 8 are front sectional views of the drive shaft. 1.10... Drive shaft 2,14... Rotor 3.
...Screw hole 4...Lock screw 12...
Motor 15...Engagement hole 16...Concave
18... Expanding diameter member 18a... Hole
18b... Pickpocket 20... Screw
Claims (3)
駆動軸に係合される中央に穴を有するロータ等の回転体
と、前記回転体を駆動軸に固定するさら状の頭部を有す
るねじと、該ねじを駆動軸に螺合することにより拡径す
るドーナッツ状の拡径部材とからなり、前記回転体の中
央穴の周囲に拡径部材が挿嵌される凹みを有することを
特徴とするモータの駆動軸への取付構造。(1) A screw hole drilled in the center of the drive shaft of the motor, a rotating body such as a rotor having a hole in the center that is engaged with the drive shaft, and a countersunk head that fixes the rotating body to the drive shaft. The rotating body is composed of a screw having a diameter of 100 mm, and a donut-shaped diameter expanding member that expands in diameter when the screw is screwed onto the drive shaft, and has a recess around the central hole of the rotating body into which the diameter expanding member is inserted. A structure for attaching a motor to a drive shaft.
ている請求項１記載のモータの駆動軸への取付構造。(2) The structure for attaching a motor to a drive shaft according to claim 1, wherein the drive shaft of the motor has a regular polygonal cross section.
心軸方向に向けて突起が形成されている請求項１記載の
モータの駆動軸への取付構造。(3) A structure for mounting a motor to a drive shaft according to claim 1, wherein a protrusion is formed on the inner circumferential wall of the recess provided around the center hole of the rotating body in the direction of the central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2138994A JPH0433538A (en) | 1990-05-29 | 1990-05-29 | Mounting structure of motor to drive axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2138994A JPH0433538A (en) | 1990-05-29 | 1990-05-29 | Mounting structure of motor to drive axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0433538A true JPH0433538A (en) | 1992-02-04 |
Family
ID=15235001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2138994A Pending JPH0433538A (en) | 1990-05-29 | 1990-05-29 | Mounting structure of motor to drive axis |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0433538A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1417744B1 (en) * | 2002-02-18 | 2005-10-12 | ebm-papst St. Georgen GmbH & Co. KG | Electronically commutated internal rotor motor |
-
1990
- 1990-05-29 JP JP2138994A patent/JPH0433538A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1417744B1 (en) * | 2002-02-18 | 2005-10-12 | ebm-papst St. Georgen GmbH & Co. KG | Electronically commutated internal rotor motor |
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