JPS6144033Y2 - - Google Patents

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Publication number
JPS6144033Y2
JPS6144033Y2 JP8421782U JP8421782U JPS6144033Y2 JP S6144033 Y2 JPS6144033 Y2 JP S6144033Y2 JP 8421782 U JP8421782 U JP 8421782U JP 8421782 U JP8421782 U JP 8421782U JP S6144033 Y2 JPS6144033 Y2 JP S6144033Y2
Authority
JP
Japan
Prior art keywords
rotary valve
valve
seat body
hole
valve seat
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
Application number
JP8421782U
Other languages
Japanese (ja)
Other versions
JPS58186260U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP8421782U priority Critical patent/JPS58186260U/en
Publication of JPS58186260U publication Critical patent/JPS58186260U/en
Application granted granted Critical
Publication of JPS6144033Y2 publication Critical patent/JPS6144033Y2/ja
Granted legal-status Critical Current

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  • Sliding Valves (AREA)

Description

【考案の詳細な説明】 本考案は、ロータリーバルブの改良に関するも
のである。
[Detailed Description of the Invention] The present invention relates to an improvement of a rotary valve.

従来、例えば、特開昭56−101944号公報に示さ
れているような構造のロータリーバルブは公知で
ある。このロータリーバルブは、円筒状のケーシ
ング内に第1図に分解して示すような一対の円板
状流量制御体1,2を適宜の回転位置で固定でき
るように配設すると共に、それらの間に軸4で回
転駆動される回転弁3を相互に密接させて介装
し、上記流量制御体1,2に設けた流通孔1a,
2aを連通させる弧状孔3aを回転弁3に設け
て、この回転弁3を歯車5で回転させることによ
り、両孔1a,2aを回転弁の1回転において所
定のタイミングで所定期間だけ連通するようにし
たものである。
Conventionally, a rotary valve having a structure as shown in, for example, Japanese Unexamined Patent Publication No. 56-101944 has been known. This rotary valve has a pair of disc-shaped flow control bodies 1 and 2, as shown exploded in FIG. The rotary valves 3 which are rotatably driven by shafts 4 are interposed in close contact with each other, and the flow holes 1a provided in the flow rate control bodies 1 and 2 are
By providing an arc-shaped hole 3a in the rotary valve 3 and rotating the rotary valve 3 with a gear 5, both holes 1a and 2a are communicated with each other for a predetermined period at a predetermined timing in one rotation of the rotary valve. This is what I did.

しかしながら、上記ロータリーバルブは、回転
弁3を一対の流量制御体1,2の間でその両面を
シール面として回転させる構造を有するため、そ
のシール自体が技術的に非常に困難であるだけで
なく、回転弁3の回転時における摺動抵抗が大き
くなつてそれらの摺動面が急激に摩耗し、十分な
シール状態が維持できないという難点がある。ま
た、一対の流量制御体1,2間に介装した回転弁
3を駆動するため、加圧流体が直接駆動軸4に触
れることになり、駆動軸4を緊密なシール状態で
支持する必要があるため、この点においても技術
的な困難性がある。
However, since the rotary valve described above has a structure in which the rotary valve 3 is rotated between a pair of flow control bodies 1 and 2 with both surfaces thereof being used as sealing surfaces, the seal itself is not only technically extremely difficult. However, when the rotary valve 3 rotates, the sliding resistance increases, and the sliding surfaces thereof rapidly wear out, making it impossible to maintain a sufficient sealing condition. Furthermore, since the rotary valve 3 interposed between the pair of flow rate controllers 1 and 2 is driven, the pressurized fluid comes into direct contact with the drive shaft 4, so it is necessary to support the drive shaft 4 in a tightly sealed state. Therefore, there are technical difficulties in this respect as well.

上記に鑑み、本考案は、簡単な構造でシール性
に勝れたロータリーバルブを提供しようとするも
のである。
In view of the above, the present invention aims to provide a rotary valve with a simple structure and excellent sealing performance.

上記目的を達成するため、本考案のロータリー
バルブは、回転駆動軸の一端に形成したシリンダ
部に、回転弁の一端のピストン部を軸方向に摺動
可能に且つ回転力を伝達可能に密嵌し、上記回転
弁の他端のシール面を、中心部分に流体の流入孔
を穿設すると共にその外側に流出孔を穿設した弁
座体のシート面に回転可能に密接させ、上記弁座
体はその流出孔を上記流入孔の周囲に位置する円
弧状の連通路を介してシート面に開口させると共
に、該連通路に連なる調節用連通路にその開口量
を調節する調節体を外部から挿脱可能に挿嵌し、
この弁座体をケーシングに対して回転可能に固定
し、上記回転弁のシール面に、それが1回転する
間に一時的に流入孔を流出孔に連通させる放射方
向に長い連通溝を設けると共に、該回転弁の連通
溝内に、流入孔を上記シリンダ部内に連通させる
連通孔を穿設することにより構成される。
In order to achieve the above object, the rotary valve of the present invention has a piston part at one end of the rotary valve tightly fitted into a cylinder part formed at one end of the rotary drive shaft so as to be able to slide in the axial direction and to transmit rotational force. The sealing surface at the other end of the rotary valve is rotatably brought into close contact with the seat surface of a valve seat body which has a fluid inflow hole in the center and an outflow hole on the outside thereof, and the valve seat The body opens the outflow hole to the seat surface through an arc-shaped communication path located around the inflow hole, and an adjustment body for adjusting the opening amount is installed from the outside in the adjustment communication path connected to the communication path. It is removably inserted into the
The valve seat body is rotatably fixed to the casing, and a radially long communication groove is provided on the sealing surface of the rotary valve to temporarily communicate the inflow hole with the outflow hole during one rotation of the rotary valve. , is constructed by drilling a communication hole in the communication groove of the rotary valve to communicate the inflow hole with the inside of the cylinder portion.

かかる本考案のロータリーバルブによれば、回
転駆動軸によつて回転弁を一定の速度で回転さ
せ、これによつて弁座体における流体の流入孔と
流出孔との間を、回転弁の1回転の間に所定のタ
イミングで所定の期間だけ連通させることがで
き、しかもその開弁のタイミング及び期間は上記
弁座体をケーシングに対して所定角度だけ回転さ
せ、あるいは調節体を外部から挿脱してシート面
における調節用連通路の開口量を増減調節するこ
とにより、任意に設定することができ、また上記
回転弁を弁座体の流入孔に供給した流体圧力によ
つて弁座体に圧接するため、両者間が常に供給流
体圧力に比例した大きさのシール力でシールされ
ることになる。
According to the rotary valve of the present invention, the rotary valve is rotated at a constant speed by the rotary drive shaft, and thereby one part of the rotary valve is moved between the inflow hole and the outflow hole of the fluid in the valve seat body. The valve can be opened for a predetermined period at a predetermined timing during rotation, and the timing and period for opening the valve can be determined by rotating the valve seat body by a predetermined angle with respect to the casing, or by inserting and removing the regulating body from the outside. By increasing or decreasing the opening amount of the adjustment communication passage on the seat surface, the rotary valve can be set as desired by pressing the rotary valve against the valve seat body by the fluid pressure supplied to the inflow hole of the valve seat body. Therefore, the two are always sealed with a sealing force proportional to the supply fluid pressure.

以下、本考案の実施例を図面に基づいて詳細に
説明すると、第2図において、11は筒状ケーシ
ング、12は回転駆動軸、13は回転弁、14は
弁座体で、回転駆動軸12により回転弁13を回
転させて、弁座体14における流体の流入孔14
aと流出孔14bとの間を回転弁13の1回転に
おいて所定のタイミングで一定期間だけ連通させ
るようにしている。
Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In FIG. The rotary valve 13 is rotated to open the fluid inflow hole 14 in the valve seat body 14.
A and the outflow hole 14b are communicated with each other for a certain period of time at a predetermined timing in one rotation of the rotary valve 13.

上記回転駆動軸12は、ケーシング11に内設
したベアリング17,17によつて回転可能に支
持された軸支部12aを備え、ケーシング11か
ら突出した外端に駆動用歯車19を固定すると共
に、ケーシングの外端面に当接する座金20を嵌
着し、またケーシング11内における軸支部12
aの内端に形設したシリンダ部12bに、回転弁
13の一端におけるピストン部13aを軸方向に
摺動可能に密嵌して、両者の隙間を摺動摩擦抵抗
の少ないパツキン21でシールし、さらに両者の
対向端面の偏心位置に穿設した穴に伝達軸22を
嵌挿し、回転駆動軸12と回転弁13とが一体と
なつて回転力が伝達されるように構成している。
The rotary drive shaft 12 includes a shaft support 12a that is rotatably supported by bearings 17, 17 installed inside the casing 11, and has a driving gear 19 fixed to the outer end protruding from the casing 11. A washer 20 is fitted in contact with the outer end surface of the shaft support 12 in the casing 11.
The piston part 13a at one end of the rotary valve 13 is tightly fitted into the cylinder part 12b formed at the inner end of the rotary valve 13 so as to be slidable in the axial direction, and the gap between the two is sealed with a packing 21 having low sliding frictional resistance. Further, a transmission shaft 22 is fitted into a hole bored at an eccentric position on the opposing end faces of both, so that the rotary drive shaft 12 and the rotary valve 13 are integrated to transmit rotational force.

上記回転弁13は、第2図及び第3図に示すよ
うに、ピストン部13aと一体に連設した弁部1
3bを備え、その端面におけるシール面13cに
中心から放射方向に長く伸びる連通溝13dを凹
設して、回転弁13の1回転における一定期間だ
け上記弁座体14の流入孔14aと流出孔14b
とを連通させ、またその溝13dの底面からピス
トン部13aの端面に向けて穿設した連通孔13
eにより、弁座体14の流入孔悦陀aとシリンダ
部12bの内部とを常時連通させ、それによつて
シリンダ部12bの内部に生じる圧力で回転弁1
3を弁座体14のシート面14cに圧接し、両者
間をシールしている。
As shown in FIGS. 2 and 3, the rotary valve 13 includes a valve portion 1 integrally connected to a piston portion 13a.
3b, and a communication groove 13d extending radially from the center is recessed in the sealing surface 13c on the end face, and the inlet hole 14a and the outlet hole 14b of the valve seat body 14 are connected for a certain period of time in one revolution of the rotary valve 13.
and a communication hole 13 bored from the bottom surface of the groove 13d toward the end surface of the piston portion 13a.
e allows constant communication between the inlet hole a of the valve seat body 14 and the inside of the cylinder part 12b, and the pressure generated inside the cylinder part 12b thereby causes the rotary valve 1 to
3 is pressed against the seat surface 14c of the valve seat body 14 to seal the space between them.

上記ケーシング11に回転可能に挿嵌した略円
柱状の弁座体14は、第2図及び第4図に示すよ
うに、上記流入孔14aを中心位置に穿設すると
共に、流出孔14bをその外側に穿設し、その外
側端面を回転弁13のシール面13cに密接する
シート面14cとしたもので、上記流入孔14a
をそのシート面14cの中心に開口させると共
に、流出孔14bを上記流入孔のまわりに凹設し
た連通路14dを介して開口させている。上記連
通路14dに連なる調節用連通路14eは、その
シート面14cにおける開口面積を開口量調節機
構25により外部から調節可能に構成したもので
ある。即ち、該開口量調節機構25は、第4図及
び第5図に示すように、弁座体14のシート面1
4cに開口する連通路14dに調節用連通路14
eを連設して、この調節用連通路14eに調節体
28を密嵌させ、弁座体の突出支持部14fにね
じ27で抜止状態とした調節螺杆26を回転可能
に遊挿し、該螺杆26の先端を調節体28に螺挿
して、調節螺杆26の回転により調節体28を調
節用連通路14eの方向に移動可能とし、これに
よつて調節用連通路14eのシート面14cにお
ける開口面積を調節できるようにしている。第5
図は、上記開口面積を拡大した状態を示してい
る。而して、上記弁座体14はケーシング11に
対して回転可能に装着し、締結用のねじ29によ
つて係脱自在に固定している。
As shown in FIGS. 2 and 4, the substantially cylindrical valve seat body 14, which is rotatably fitted into the casing 11, has the inlet hole 14a formed at the center and the outlet hole 14b formed therein. The inflow hole 14a is bored on the outside, and its outer end surface is a seat surface 14c that comes into close contact with the sealing surface 13c of the rotary valve 13.
is opened at the center of the seat surface 14c, and the outflow hole 14b is opened via a communicating path 14d recessed around the inflow hole. The adjustment communication path 14e connected to the communication path 14d is configured so that its opening area on the seat surface 14c can be adjusted from the outside by an opening amount adjustment mechanism 25. That is, as shown in FIGS. 4 and 5, the opening amount adjusting mechanism 25
An adjustment communication passage 14 is provided in the communication passage 14d that opens to 4c.
e, the adjustment body 28 is tightly fitted into the adjustment communication passage 14e, and the adjustment screw 26, which is prevented from coming out with a screw 27, is rotatably inserted loosely into the protruding support portion 14f of the valve seat body. 26 is screwed into the adjustment body 28, and the adjustment body 28 can be moved in the direction of the adjustment communication path 14e by rotating the adjustment screw 26, thereby reducing the opening area of the adjustment communication path 14e on the seat surface 14c. can be adjusted. Fifth
The figure shows the opening area enlarged. The valve seat body 14 is rotatably mounted on the casing 11 and detachably fixed by a fastening screw 29.

上記構成のロータリーバルブにおいて、外部か
らの回転力により歯車19を回転すれば、その回
転力が回転駆動軸12及び伝達軸22を介して回
転弁13に伝えられ、回転弁13が一定の速度で
回転する。これにより、回転弁13の1回転の間
に所定のタイミングで弁座体14の流入孔14a
と流出孔14bとが連通し、一定期間の後に両孔
14a,14b間が遮断される。即ち、回転弁1
3を第4図に示す矢印R方向に回転すれば、基準
位置Aから回転角φだけ回転するまで流入孔1
4aが連通溝13d及び連通路14dを介して流
出孔14bに連通し(回転角φを過ぎても一部
連通するが、ここではそれを無視して説明す
る。)、その後の回転角θの回転においては、両孔
14a,14b間が遮断され、さらにそ後の回転
角φの回転においては、両孔14a,14b間
が連通し、これが回転弁13の1回転毎に繰返さ
れる。
In the rotary valve configured as described above, when the gear 19 is rotated by an external rotational force, the rotational force is transmitted to the rotary valve 13 via the rotary drive shaft 12 and the transmission shaft 22, and the rotary valve 13 is rotated at a constant speed. Rotate. As a result, the inflow hole 14a of the valve seat body 14 is opened at a predetermined timing during one rotation of the rotary valve 13.
and the outflow hole 14b communicate with each other, and after a certain period of time, the two holes 14a and 14b are cut off. That is, rotary valve 1
3 in the direction of the arrow R shown in FIG.
4a communicates with the outflow hole 14b via the communication groove 13d and the communication path 14d (although there is some communication even after the rotation angle φ1 , this will be ignored and explained here), and the subsequent rotation angle θ During the rotation, the two holes 14a and 14b are cut off, and during the subsequent rotation at the rotation angle φ2 , the two holes 14a and 14b communicate with each other, and this is repeated every rotation of the rotary valve 13.

上記回転弁13の1回転において、両孔14
a,14bが連通するタイミング及び連通する期
間は、調節螺杆26の回転及び弁座体14のケー
シング11に対する回転により任意に設定するこ
とができる。即ち、ねじ29をゆるめて弁座体1
4をケーシング11に対して回転させれば、両孔
14a,14bの遮断状態と連通状態とが切換え
られるタイミングを変えることができ、また開口
量調節機構25における調節螺杆26を回転し
て、調節体28を調節用連通路14eにおいて進
退させれば、両孔14a,14bが連通する期間
を変えることができる。例えば、調節体28を、
第4図の位置から第5図の位置に後退させれば、
両孔14a,14bが連通する期間を、第4図の
回転角(φ+φ)に応じた期間から、第5図
の回転角(φ+φ)に応じた期間に延長する
ことができる。
In one rotation of the rotary valve 13, both holes 14
The timing and period of communication between a and 14b can be arbitrarily set by the rotation of the adjusting screw 26 and the rotation of the valve seat body 14 with respect to the casing 11. That is, loosen the screw 29 and remove the valve seat body 1.
4 with respect to the casing 11, the timing at which the two holes 14a, 14b are switched between the blocking state and the communicating state can be changed.Also, by rotating the adjusting screw 26 in the opening amount adjusting mechanism 25, the adjustment can be made. By moving the body 28 forward and backward in the adjustment communication passage 14e, the period during which both the holes 14a and 14b communicate can be changed. For example, the adjustment body 28 is
If you move it back from the position shown in Figure 4 to the position shown in Figure 5,
The period during which both holes 14a and 14b communicate can be extended from a period corresponding to the rotation angle (φ 21 ) in FIG. 4 to a period corresponding to the rotation angle (φ 21 ) in FIG. can.

上記両孔14a,14bの連通及び遮断のいず
れの状態においても、回転弁13と弁座体14と
の間のシールは、流入孔14aに供給した流体圧
力に比例した大きさの圧接力で確実に行われる。
即ち、上記流入孔14aは連通溝13d及び連通
孔13eを介してシリンダ部12bの内部と常時
連通しており、それにより流入孔14aに供給し
た流体圧力はシリンダ部12bに流入して回転弁
13を弁座体14に押付ける力として作用する。
従つて、回転弁13の回転に伴つてそのシール面
13c及び弁座体14のシート面14cが摩耗し
ても、摩耗した厚さだけ両者が接近するため、両
者間は良好なシール状態に維持される。
In both the communicating and blocking states of both the holes 14a and 14b, the seal between the rotary valve 13 and the valve seat body 14 is ensured by a pressing force proportional to the fluid pressure supplied to the inlet hole 14a. It will be held in
That is, the inflow hole 14a is always in communication with the inside of the cylinder portion 12b via the communication groove 13d and the communication hole 13e, so that the fluid pressure supplied to the inflow hole 14a flows into the cylinder portion 12b and the rotary valve 13. acts as a force that presses against the valve seat body 14.
Therefore, even if the sealing surface 13c of the rotary valve 13 and the seat surface 14c of the valve seat body 14 are worn out as the rotary valve 13 rotates, a good sealing condition is maintained between them because they approach each other by the worn thickness. be done.

なお、上記弁座体14は、外部に設けた電動モ
ータ(図示せず)を遠隔操作して回転するように
構成することもでき、その場合には、電動モータ
のブレーキにより弁座体14の回転を阻止するこ
とができるため、上記ねじ29を省略することが
できる。
The valve seat body 14 can also be configured to be rotated by remote control of an externally provided electric motor (not shown). In that case, the valve seat body 14 is rotated by the brake of the electric motor. Since rotation can be prevented, the screw 29 can be omitted.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来例の主要部材の分離状態を示す斜
視図、第2図は本考案の実施例の断面図、第3図
はその回転弁の斜視図、第4図及び第5図はその
弁座体の異なる調節状態の正面図である。 11……ケーシング、12……回転駆動軸、1
2b……シリンダ部、13……回転弁、13a…
…ピストン部、13c……シール面、13d……
連通溝、13e……連通孔、14……弁座体、1
4a……流入孔、14b……流出孔、14c……
シート面、14d……連通路、14e……調節用
連通路、28……調節体。
Fig. 1 is a perspective view showing the separated state of the main components of the conventional example, Fig. 2 is a sectional view of the embodiment of the present invention, Fig. 3 is a perspective view of the rotary valve, and Figs. 4 and 5 are the same. FIG. 4 is a front view of the valve seat body in different adjustment states; 11...Casing, 12...Rotation drive shaft, 1
2b...Cylinder part, 13...Rotary valve, 13a...
...Piston part, 13c...Seal surface, 13d...
Communication groove, 13e...Communication hole, 14...Valve seat body, 1
4a... Inflow hole, 14b... Outflow hole, 14c...
Seat surface, 14d...Communication path, 14e...Adjustment communication path, 28...Adjustment body.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 回転駆動軸の一端に形設したシリンダ部に、回
転弁の一端のピストン部を軸方向に摺動可能に且
つ回転力を伝達可能に密嵌し、上記回転弁の他端
のシール面を、中心部分に流体の流入孔を穿設す
ると共にその外側に流出孔を穿設した弁座体のシ
ート面に回転可能に密接させ、上記弁座体はその
流出孔を上記流入孔の周囲に位置する円弧状の連
通路を介してシート面に開口させると共に、該連
通路に連なる調節用連通路にその開口量を調節す
る調節体を外部から挿脱可能に挿嵌し、この弁座
体をケーシングに対して回転可能に固定し、上記
回転弁のシール面に、それが1回転する間に一時
的に流入孔を流出孔に連通させる放射方向に長い
連通溝を設けると共に、該回転弁の連通溝内に、
流入孔を上記シリンダ部内に連通させる連通孔を
穿設したことを特徴とするロータリーバルブ。
A piston part at one end of the rotary valve is tightly fitted into a cylinder part formed at one end of the rotary drive shaft so as to be able to slide in the axial direction and transmit rotational force, and a sealing surface at the other end of the rotary valve is The valve seat body is rotatably brought into close contact with the seat surface of a valve seat body having a fluid inflow hole bored in the center portion and an outflow hole bored outside thereof, and the valve seat body has the outflow hole located around the inflow hole. The valve seat body is opened on the seat surface through an arc-shaped communicating path, and an adjusting body for adjusting the opening amount is removably inserted into the adjusting communicating path connected to the communicating path. The rotary valve is rotatably fixed to the casing, and the sealing surface of the rotary valve is provided with a radially long communication groove that temporarily communicates the inflow hole with the outflow hole during one rotation of the rotary valve. In the communication groove,
A rotary valve characterized in that a communication hole is bored through which the inflow hole communicates with the inside of the cylinder portion.
JP8421782U 1982-06-07 1982-06-07 rotary valve Granted JPS58186260U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8421782U JPS58186260U (en) 1982-06-07 1982-06-07 rotary valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8421782U JPS58186260U (en) 1982-06-07 1982-06-07 rotary valve

Publications (2)

Publication Number Publication Date
JPS58186260U JPS58186260U (en) 1983-12-10
JPS6144033Y2 true JPS6144033Y2 (en) 1986-12-12

Family

ID=30093175

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8421782U Granted JPS58186260U (en) 1982-06-07 1982-06-07 rotary valve

Country Status (1)

Country Link
JP (1) JPS58186260U (en)

Also Published As

Publication number Publication date
JPS58186260U (en) 1983-12-10

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