JPH0321777B2 - - Google Patents
Info
- Publication number
- JPH0321777B2 JPH0321777B2 JP58005525A JP552583A JPH0321777B2 JP H0321777 B2 JPH0321777 B2 JP H0321777B2 JP 58005525 A JP58005525 A JP 58005525A JP 552583 A JP552583 A JP 552583A JP H0321777 B2 JPH0321777 B2 JP H0321777B2
- Authority
- JP
- Japan
- Prior art keywords
- gear
- shaft
- fixed
- valve
- rotation
- 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 - Lifetime
Links
Landscapes
- Power Steering Mechanism (AREA)
- Mechanically-Actuated Valves (AREA)
- Gear Transmission (AREA)
Description
【発明の詳細な説明】
本発明は、自動車のパワーステアリングなどを
制御すべく用いられる流体圧制御用バルブを開閉
させるための減速歯車装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a reduction gear device for opening and closing a fluid pressure control valve used to control the power steering of an automobile.
従来のこの種歯車装置につき第１図、第２図を
参照して説明すると、歯車ケース１内の壁１ａに
はステツプモータ２が固定され、このモータ２か
ら突出した軸２ａが壁１ａの裏側に延在し、該軸
２ａには一体回転する第１歯車３が固定されてい
る。該第１歯車３には、該歯車３よりも歯数の多
い第２歯車４が組付けられ、該第２歯車４は第３
歯車５と一体成形されているため両歯車４，５は
一体的に回転する。両歯車４，５の共通軸６は前
記壁１ａと他の壁１ｂとにより、その両端が軸支
されている。 A conventional gear device of this type will be explained with reference to FIGS. 1 and 2. A step motor 2 is fixed to a wall 1a inside a gear case 1, and a shaft 2a protruding from the motor 2 is attached to the back side of the wall 1a. A first gear 3 that rotates integrally with the shaft 2a is fixed to the shaft 2a. A second gear 4 having more teeth than the gear 3 is attached to the first gear 3, and the second gear 4 is attached to the third gear 4.
Since it is integrally molded with the gear 5, both gears 4 and 5 rotate together. A common shaft 6 of both gears 4 and 5 is pivotally supported at both ends by the wall 1a and another wall 1b.
前記第３歯車５には、軸心が前記第１歯車３と
同一線上にある第４歯車７が噛合つている。該歯
車７は出力歯車であつてその軸部７ａはケース１
の壁１ｂに軸支され、軸心部にはメクラ穴７ｂが
設けられている。この穴７ｂには、図示してない
バルブ装置の軸が嵌合固着され、第４歯車７と一
体回転することにより前記バルブ装置におけるバ
ルブの開閉がなされる。 A fourth gear 7 whose axis is on the same line as the first gear 3 meshes with the third gear 5 . The gear 7 is an output gear, and its shaft portion 7a is connected to the case 1.
The shaft is supported pivotally on the wall 1b, and a blind hole 7b is provided in the central part of the shaft. A shaft of a valve device (not shown) is fitted and fixed into the hole 7b, and rotates integrally with the fourth gear 7 to open and close the valve in the valve device.
第１図、第２図における符号８はストツパボル
トでオネジ部８ａを有し、ナツト９によつてケー
ス１に固定されている。該ストツパボルト８の先
端に、上述の第４歯車７の突部７Ｃが当接するこ
とにより該歯車７の回動が停止せしめられるわけ
であるが、前記ナツト９を調節することによりボ
ルト８の突出量を調節しうるので、歯車７の回動
量をある程度調節することができる。 Reference numeral 8 in FIGS. 1 and 2 denotes a stopper bolt, which has a male threaded portion 8a and is fixed to the case 1 with a nut 9. The rotation of the gear 7 is stopped by the projection 7C of the fourth gear 7 coming into contact with the tip of the stopper bolt 8. By adjusting the nut 9, the amount of protrusion of the bolt 8 can be adjusted. can be adjusted, so the amount of rotation of the gear 7 can be adjusted to a certain extent.
しかるに、このような従来装置においては、出
力歯車である第４歯車７の回動量を制御するに際
し別部材たるストツパボルト８及びナツト９を製
作してケース１に組付ける必要があり、実際この
ような製造工程及び組付工程を設けることは工数
の増大につながりコストアツプになるという欠点
があつた。 However, in such a conventional device, in order to control the amount of rotation of the fourth gear 7, which is the output gear, it is necessary to manufacture and assemble the stopper bolt 8 and nut 9, which are separate members, to the case 1. Providing a manufacturing process and an assembly process has the drawback of increasing the number of man-hours and increasing costs.
このため本発明は、出力歯車である第４歯車を
内歯歯車として該歯車のボデイ部に弧状長孔を形
成し、この長孔に他の歯車の軸部を貫通せしめ、
該他の歯車を介して前記内歯歯車が回動せしめら
れたときに前記長孔の両終端壁に前記軸部が当接
するように構成し、もつて従来の如き別部材たる
ストツパ部材を設ける必要がないようにし、かつ
コスト低廉化に貢献できるようなバルブ開閉用減
速歯車装置を提供せんとするものである。 Therefore, in the present invention, the fourth gear, which is the output gear, is an internal gear, and an arcuate long hole is formed in the body of the fourth gear, and the shaft of another gear is passed through the long hole.
When the internal gear is rotated via the other gear, the shaft portion is configured to come into contact with both end walls of the elongated hole, and a stopper member is provided as a separate member as in the prior art. It is an object of the present invention to provide a reduction gear device for opening and closing a valve, which eliminates the need for the valve and contributes to cost reduction.
以下、本発明の実施例を添付図面に基づいて説
明する。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
第３図、第４図は本発明の一実施例を示すもの
で、主要構成は前述の第１図、第２図に示す従来
装置とほぼ同様である。すなわち、歯車ケース１
１に固定した蓋１１ａの外側にはステツプモータ
１２が固定され、このモータ１２から突出した軸
１２ａが前記蓋１１ａの内側に延在し、該軸１２
ａには一体回転する第１歯車１３が固定されてい
る。該第１歯車１３には、該歯車１３よりも歯数
の多い第２歯車１４が組付けられ、該第２歯車１
４は歯数小なる第３歯車１５と一体成形されてい
るため両歯車１４，１５は一体的に回転する。両
歯車１４，１５の共通軸である突部１６ａ，１６
ｂは前記蓋１１ａと壁１１ｂとによりそれぞれ軸
支されている。 FIGS. 3 and 4 show an embodiment of the present invention, and the main structure is almost the same as the conventional device shown in FIGS. 1 and 2 described above. That is, gear case 1
A step motor 12 is fixed to the outside of the lid 11a fixed to the lid 11, and a shaft 12a protruding from the motor 12 extends inside the lid 11a.
A first gear 13 that rotates integrally is fixed to a. A second gear 14 having more teeth than the gear 13 is attached to the first gear 13.
4 is integrally molded with the third gear 15 having a smaller number of teeth, so both gears 14 and 15 rotate integrally. Projections 16a and 16 that are common shafts of both gears 14 and 15
b is pivotally supported by the lid 11a and the wall 11b, respectively.
前記第３歯車１５には、軸心が前記第１歯車１
３と同じ線上にある第４歯車１７が噛合つてい
る。該歯車１７は出力歯車であつて内歯歯車とな
つており、その軸部１７ａはケース１１の壁１１
ｂに軸支され、先端部には切欠部１７ｂが設けら
れている。この切欠部１７ｂには図示してないバ
ルブ装置の軸が固着され、第４歯車１７と一体回
転することにより前記バルブ装置におけるバルブ
の開閉がなされ、例えば自動車用パワーステアリ
ングの油圧制御がなされる。 The third gear 15 has an axis that is aligned with the first gear 1.
The fourth gear 17, which is on the same line as 3, is in mesh with the fourth gear 17. The gear 17 is an output gear and an internal gear, and its shaft portion 17a is connected to the wall 11 of the case 11.
b, and a notch 17b is provided at the tip. A shaft of a valve device (not shown) is fixed to this notch 17b, and rotates integrally with the fourth gear 17 to open and close a valve in the valve device, for example, to perform hydraulic control of power steering for an automobile.
前記第４歯車（内歯歯車）１７の軸心部には前
記第１歯車１３の軸部先端が軸支されているが両
歯車１３，１７は一体回転するものではなく相対
回転自在に軸支されている。また前記内歯歯車１
７のボデー部１７ｃには１個の弧状長孔１７ｄが
設けられ（第４図参照）、この長孔１７ｄを貫通
して前記突部１６ｂが壁１１ｂに軸支されてい
る。 The tip of the shaft of the first gear 13 is pivotally supported at the shaft center of the fourth gear (internal gear) 17, but both gears 13 and 17 do not rotate integrally, but are supported so that they can rotate freely relative to each other. has been done. Further, the internal gear 1
One arcuate elongated hole 17d is provided in the body portion 17c of No. 7 (see FIG. 4), and the protrusion 16b is pivotally supported by the wall 11b through this elongated hole 17d.
かかる構成において、ステツプモータ１２が回
転すると、先ず第１歯車１３と第２歯車１４との
間で減速され、さらに第３歯車１５と第４歯車１
７との間で減速される。すなわち、２段階に減速
されることにより、モータ１２の回転は15分の１
に減速される。そして第４歯車１７は軸心回りに
回動するわけであるが、長孔１７ｄの終端壁１７
d1又は１７d2に突部１６ｂが当接した時点で回動
停止する。従つて第４歯車１７は第４図の如き中
立位置から左右にθ1及びθ2だけ回動することがで
きる。 In this configuration, when the step motor 12 rotates, the speed is first reduced between the first gear 13 and the second gear 14, and then the speed is reduced between the third gear 15 and the fourth gear 1.
The speed is reduced between 7 and 7. In other words, by being decelerated in two stages, the rotation of the motor 12 is reduced to 1/15th.
The speed is reduced to The fourth gear 17 rotates around the axis, and the end wall 17 of the elongated hole 17d
Rotation stops when the protrusion 16b comes into contact with d1 or 17d2 . Therefore, the fourth gear 17 can rotate left and right by θ 1 and θ 2 from the neutral position as shown in FIG.
尚、上記実施例においてはモータとしてステツ
プモータを用いているが通常の正逆回転可能なモ
ータでも構わない。 In the above embodiment, a step motor is used as the motor, but a normal motor capable of forward and reverse rotation may also be used.
このように本発明は、歯車ケースの両側端壁に
個別に軸支される入力軸及び出力軸と、前記歯車
ケース内において入力軸に固定される第１歯車
と、両端が前記歯車ケースの前記両側端壁に軸支
される中間軸と、該中間軸に固定され前記第１歯
車と噛合う第２歯車と、前記中間軸に固定され前
記第２歯車と一体回転する第３歯車と、前記出力
軸に固定され前記第３歯車と噛合う第４歯車と、
前記第４歯車と当接して前記出力軸の所定角度以
上の回動を制止する回動制止機構とを具備し、前
記出力軸を360度以下の所定の回転角度だけ正逆
回動させるバルブ開閉用減速歯車装置において、
前記回動制止機構が、前記第３歯車と噛合う内
歯歯車からなる前記第４歯車に貫設された弧状長
孔と、該弧状長孔内を相対移動自在に貫通すると
ともに前記弧状長孔の両終端壁に当接して前記第
４歯車の回動を制止する前記中間軸とで構成する
ことを特徴とするものである。 In this way, the present invention provides an input shaft and an output shaft that are individually supported on both end walls of a gear case, a first gear that is fixed to the input shaft within the gear case, and a first gear that is fixed to the input shaft in the gear case, and an intermediate shaft pivotally supported by both side end walls; a second gear fixed to the intermediate shaft and meshing with the first gear; a third gear fixed to the intermediate shaft and rotating integrally with the second gear; a fourth gear fixed to the output shaft and meshing with the third gear;
a rotation stopping mechanism that comes into contact with the fourth gear to stop rotation of the output shaft beyond a predetermined angle; the valve opens and closes the valve that rotates the output shaft in forward and reverse directions by a predetermined rotation angle of 360 degrees or less; In the reduction gear device, the rotation stopping mechanism passes through an arcuate elongated hole provided through the fourth gear, which is an internal gear that meshes with the third gear, and is relatively movable within the arcuate elongated hole. and the intermediate shaft that comes into contact with both end walls of the arcuate long hole and stops the rotation of the fourth gear.
なお、上記実施例では、歯車ケースの両側端壁
は、蓋１１ａ及び壁１１ｂからなり、入力軸は軸
１２ａからなり、出力軸は軸部１７ａからなり、
中間軸は突部１６ａ，１６ｂからなる。 In the above embodiment, both end walls of the gear case consist of the lid 11a and the wall 11b, the input shaft consists of the shaft 12a, the output shaft consists of the shaft part 17a,
The intermediate shaft consists of protrusions 16a and 16b.
したがつて、この発明の装置では、第４歯車に
設けられた弧状長孔と、それを貫通する中間軸と
により、バルブの所定角度以上の開閉を防止する
ための回動制止機構を構成しているので、従来の
ように、ストツパ部材やこのストツパ部材と当接
する出力軸側の突起を別設する必要がなく、その
ために、部品点数及び組付け調整工程を削減し、
かつ、小形とすることができる。更に、第４歯車
を内歯歯車としているので、第４歯車を外歯歯車
とした場合に比較して第４歯車の歯数を増加する
ことができるので、歯車ケースの直径を増大する
ことなく減速比を増大することができ、しかも、
第４歯車を内歯歯車としたにもかかわらず、中間
軸が第４歯車を貫通しているので、中間軸の両端
部を歯車ケースの両端壁で軸支でき、中間軸の支
持機構が簡単になり、装置の小型軽量化を図るこ
とができる。 Therefore, in the device of the present invention, the arc-shaped elongated hole provided in the fourth gear and the intermediate shaft passing through it constitute a rotation stopping mechanism for preventing the valve from opening and closing beyond a predetermined angle. Therefore, there is no need to separately provide a stopper member or a protrusion on the output shaft side that comes into contact with the stopper member, which is required in the past. Therefore, the number of parts and assembly adjustment process can be reduced.
Moreover, it can be made small. Furthermore, since the fourth gear is an internal gear, the number of teeth of the fourth gear can be increased compared to when the fourth gear is an external gear, without increasing the diameter of the gear case. The reduction ratio can be increased, and
Even though the fourth gear is an internal gear, the intermediate shaft passes through the fourth gear, so both ends of the intermediate shaft can be supported by both end walls of the gear case, making the intermediate shaft support mechanism simple. This makes it possible to reduce the size and weight of the device.
言替えれば、出力歯車である第４歯車の回動を
規制するためのストツパ作用が弧状長孔の終端壁
と軸部との当接とによつてなされ、従来のような
別部材としてのストツパ部材を設ける必要がない
から製造工程や組付工程をそれだけ省くことがで
き、コストダウンに貢献することができる。また
内歯歯車を用いる構成としたため、小空間で大き
な減速比を得ることができる。 In other words, the stopper action for regulating the rotation of the fourth gear, which is the output gear, is achieved by the abutment between the end wall of the arc-shaped elongated hole and the shaft, and the stopper is not provided as a separate member as in the past. Since there is no need to provide any members, the manufacturing process and assembly process can be omitted, contributing to cost reduction. Furthermore, since the structure uses an internal gear, a large reduction ratio can be obtained in a small space.
第１図は従来装置を示す正面図、第２図は第１
図の−線矢視断面図、第３図は本発明の一実
施例を示す第２図と同様な断面図、第４図は第３
図の−線矢視拡大断面図である。
１，１１……歯車ケース、２，１２……ステツ
プモータ、３，４，５，７……歯車、１３，１
４，１５，１７……歯車、１６ａ，１６ｂ……軸
部たる突部。
Figure 1 is a front view of a conventional device, and Figure 2 is a front view of a conventional device.
FIG. 3 is a sectional view similar to FIG. 2 showing an embodiment of the present invention, and FIG.
It is an enlarged sectional view taken along the line - in the figure. 1, 11... Gear case, 2, 12... Step motor, 3, 4, 5, 7... Gear, 13, 1
4, 15, 17...Gears, 16a, 16b...Protrusions serving as shafts.
Claims (1)
力軸及び出力軸と、前記歯車ケース内において入
力軸に固定される第１歯車と、両端が前記歯車ケ
ースの前記両側端壁に軸支される中間軸と、該中
間軸に固定され前記第１歯車と噛合う第２歯車
と、前記中間軸に固定され前記第２歯車と一体回
転する第３歯車と、前記出力軸に固定され前記第
３歯車と噛合う第４歯車と、前記第４歯車と当接
して前記出力軸の所定角度以上の回動を制止する
回動制止機構とを具備し、前記出力軸を360度以
下の所定の回転角度だけ正逆回動させるバルブ開
閉用減速歯車装置において、 前記回動制止機構は、前記第３歯車と噛合う内
歯歯車からなる前記第４歯車に貫設された弧状長
孔と、該弧状長孔内に相対移動自在に貫通すると
ともに前記弧状長孔の両終端壁に当接して前記第
４歯車の回動を制止する前記中間軸とで構成され
ていることを特徴とするバルブ開閉用減速歯車装
置。[Scope of Claims] 1. An input shaft and an output shaft that are individually pivotally supported on both side end walls of a gear case, a first gear that is fixed to the input shaft within the gear case, and a first gear that is fixed to the input shaft within the gear case; an intermediate shaft pivotally supported by both side end walls; a second gear fixed to the intermediate shaft and meshing with the first gear; a third gear fixed to the intermediate shaft and rotating integrally with the second gear; a fourth gear fixed to the output shaft and meshing with the third gear; and a rotation stopping mechanism that comes into contact with the fourth gear to stop the output shaft from rotating beyond a predetermined angle. In the reduction gear device for opening and closing a valve, which rotates the valve forward and backward by a predetermined rotation angle of 360 degrees or less, the rotation stopping mechanism is installed through the fourth gear, which is an internal gear that meshes with the third gear. and the intermediate shaft that passes through the arcuate elongate hole relatively movably and abuts both end walls of the arcuate elongate hole to stop rotation of the fourth gear. A reduction gear device for opening and closing a valve, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58005525A JPS59131060A (en) | 1983-01-17 | 1983-01-17 | Valve opening and closing reduction gear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58005525A JPS59131060A (en) | 1983-01-17 | 1983-01-17 | Valve opening and closing reduction gear device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59131060A JPS59131060A (en) | 1984-07-27 |
| JPH0321777B2 true JPH0321777B2 (en) | 1991-03-25 |
Family
ID=11613599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58005525A Granted JPS59131060A (en) | 1983-01-17 | 1983-01-17 | Valve opening and closing reduction gear device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59131060A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180026934A (en) * | 2016-09-05 | 2018-03-14 | (주) 티엠지코리아 | Floating plate, gear box including the same and valve including the gear box |
| CN109899562A (en) * | 2017-12-11 | 2019-06-18 | 浙江三花汽车零部件有限公司 | A kind of motor-driven valve |
| CN110388496A (en) * | 2018-04-19 | 2019-10-29 | 浙江三花汽车零部件有限公司 | Ball valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5031252A (en) * | 1973-07-20 | 1975-03-27 | ||
| JPS5059655A (en) * | 1973-09-28 | 1975-05-23 | ||
| JPS5552061Y2 (en) * | 1975-12-02 | 1980-12-03 | ||
| JPS6027612B2 (en) * | 1979-06-08 | 1985-06-29 | 京セラミタ株式会社 | Copy machine paper feed device |
| JPS5759733U (en) * | 1980-09-20 | 1982-04-08 |
-
1983
- 1983-01-17 JP JP58005525A patent/JPS59131060A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59131060A (en) | 1984-07-27 |
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