JPH07243405A - Pneumatic rectilinear motion converter - Google Patents
Pneumatic rectilinear motion converterInfo
- Publication number
- JPH07243405A JPH07243405A JP3346794A JP3346794A JPH07243405A JP H07243405 A JPH07243405 A JP H07243405A JP 3346794 A JP3346794 A JP 3346794A JP 3346794 A JP3346794 A JP 3346794A JP H07243405 A JPH07243405 A JP H07243405A
- Authority
- JP
- Japan
- Prior art keywords
- air supply
- cover
- cylinder
- pinion
- center
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
- F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
- F15B15/065—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the rack-and-pinion type
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、圧力空気により直線的
に往復動させられるピストンにより、ラックとピニオン
を介して、正逆の回動運動を得るようにした直線運動変
換装置の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a linear motion conversion device which is capable of reciprocating forward and backward rotational motions via a rack and a pinion by a piston which is linearly reciprocated by pressurized air.
【０００２】[0002]
【従来の技術】上記した型式の従来の直線運動変換装置
の例を、図３に示す。その構成は次の如くである。2. Description of the Related Art FIG. 3 shows an example of a conventional linear motion conversion device of the above type. The structure is as follows.
【０００３】左右両端をカバー(31)(32)で閉じたシリン
ダ(33)の中心には垂直方向を向く駆動軸(34)が貫装さ
れ、駆動軸(34)の一部には、中心がシリンダ(33)の軸線
上に位置するピニオン(35)が、一体的に設けられてい
る。A drive shaft (34) oriented in the vertical direction is inserted through the center of a cylinder (33) whose left and right ends are closed by covers (31) (32), and a part of the drive shaft (34) has a center. The pinion (35) located on the axis of the cylinder (33) is integrally provided.
【０００４】ピニオン(35)の左右両側方において、シリ
ンダ(33)内には、ピストン(36)(37)が設けられ、左側ピ
ストン(36)の右側面後部、並びに右側ピストン(37)の左
側面前部には、それぞれ、ピニオン(35)を超えて軸線方
向に内方へ突出する突杆(38)(39)が一体的に設けられて
いる。Pistons (36) and (37) are provided in the cylinder (33) on both left and right sides of the pinion (35), and the right side rear portion of the left side piston (36) and the left side of the right side piston (37). Protruding rods (38) (39) projecting inward in the axial direction beyond the pinion (35) are integrally provided on the front portion of the surface, respectively.
【０００５】各突杆(38)(39)の対向面には、それぞれ、
ピニオン(35)と適正に噛合する軸線方向のラック(40)(4
1)が設けられている。On the opposing surfaces of the thrust rods (38) (39),
Axial rack (40) (4
1) is provided.
【０００６】左側ピストン(36)の中心には、左方へ突出
する案内杆(42)の右側端が固着され、その左側端は、左
側カバー(31)の内側面中心に設けた軸線方向の受筒(43)
内に、摺動可能に支持されている。A right end of a guide rod (42) protruding to the left is fixed to the center of the left piston (36), and the left end of the guide rod (42) in the axial direction provided at the center of the inner surface of the left cover (31). Receptacle (43)
It is slidably supported therein.
【０００７】右側ピストン(37)の中心には、軸線方向の
通孔(44)を有し、かつ右方へ突出する案内杆(45)の左側
端が固着され、その右側端は、右側カバー(32)の内側面
の中心に設けた軸線方向の受筒(46)内に、摺動自在に支
持されている。At the center of the right piston (37), there is a through hole (44) in the axial direction, and the left end of a guide rod (45) projecting to the right is fixed. It is slidably supported in an axial receiving cylinder (46) provided at the center of the inner surface of the (32).
【０００８】左右のカバー(31)(32)及びシリンダ(33)の
下壁には、左右のカバー(31)(32)とそれに近いピストン
(36)(37)との間の空間(47)(48)を連通するための給排気
孔(49)があけられている。この給排気孔(49)は、右側カ
バー(32)の下面に開口している。On the lower walls of the left and right covers (31) and (32) and the cylinder (33), the left and right covers (31) and (32) and pistons close to them
Air supply / exhaust holes (49) for communicating the spaces (47) and (48) between the (36) and (37) are provided. The air supply / exhaust hole (49) is opened in the lower surface of the right cover (32).
【０００９】右側カバー(32)の下面から、受筒(46)の内
部及び案内杆(45)の通孔(44)を介して、左右のピストン
(36)(37)の間の空間(50)内に圧縮空気を給排気するため
の給排気孔(51)があけられている。From the lower surface of the right side cover (32), through the inside of the receiving tube (46) and the through hole (44) of the guide rod (45), the left and right pistons
An air supply / exhaust hole (51) for supplying / exhausting compressed air is provided in the space (50) between the (36) and (37).
【００１０】圧力空気源に接続された切換弁(例えばソ
レノイド弁)(52)の送入口および排出口を、それぞれ給
排気孔(49)(51)に接続し、給排気孔(49)(51)のいずれか
より、圧力空気を送入又は排出させると、両ピストン(3
6)(37)は同時に内外へ摺動し、ラック(40)(41)を介し
て、ピニオン(35)および駆動軸(34)は正逆回動させられ
る。The inlet and outlet of a switching valve (for example, a solenoid valve) (52) connected to a pressure air source are connected to the air supply / exhaust holes (49) (51), respectively, and the air supply / exhaust holes (49) (51) are connected. ), When pressure air is sent or discharged, both pistons (3
6) and (37) slide inward and outward at the same time, and the pinion (35) and the drive shaft (34) are rotated forward and backward via the racks (40) and (41).
【００１１】[0011]
【発明が解決しようとする課題】上記したような装置に
おいて、配管上、あるいは他の機器との配置の関係か
ら、切換弁(52)の本装置に対する向きを変えて、その突
出方向を変えたい場合がある。In the above-mentioned device, it is desired to change the direction of the switching valve (52) with respect to the device and change the projecting direction of the device in view of the arrangement on the pipe or with other equipment. There are cases.
【００１２】このような場合において、圧力空気の供給
に対して、駆動軸(34)の回転方向を相違させないために
は、カバー(32)を、向きを変えた切換弁(52)の送入口及
び排出口と合致する個所に給排気孔(49)(51)を設けた別
のカバーと交換しなければならない。In such a case, in order not to make the rotation direction of the drive shaft (34) different from the supply of the compressed air, the cover (32) is provided with the inlet of the switching valve (52) whose direction is changed. Also, the cover must be replaced with another cover that has the air supply / exhaust holes (49) (51) at the position matching the discharge port.
【００１３】従って、複数種類のカバーを準備しておく
ことが必要となり、不経済であるとともに、部品管理も
面倒となる。Therefore, it is necessary to prepare a plurality of types of covers, which is uneconomical, and parts management is troublesome.
【００１４】[0014]
【課題を解決するための手段】本発明によると、上記課
題は、シリンダ内に設けた駆動軸と一体をなすピニオン
の側方に、同ピニオンと噛合するラックと一体をなすピ
ストンを、軸線方向に摺動しうるようにして設け、かつ
シリンダの側端を閉じるカバーに、ピストンの両側方へ
圧力空気を送ったり排出したりするための複数の給排気
孔を設けてなる直線運動変換装置において、前記給排気
孔を、カバーの中心に対して対称的な位置に設けたこと
により解決される。SUMMARY OF THE INVENTION According to the present invention, the above object is to provide a piston, which is integral with a drive shaft provided in a cylinder, laterally with a piston which is integral with a rack that meshes with the pinion. A linear motion conversion device having a plurality of air supply / exhaust holes for sending and discharging pressurized air to both sides of a piston in a cover that is slidably mounted on a cylinder and closes a side end of a cylinder. This is solved by providing the air supply / exhaust holes at symmetrical positions with respect to the center of the cover.
【００１５】[0015]
【作用】カバーの取付の向きを変えることにより、切換
弁の取付方向を変えても、給排気方向が変わることはな
い。By changing the mounting direction of the cover, the supply / exhaust direction does not change even if the mounting direction of the switching valve is changed.
【００１６】[0016]
【実施例】図１、図２は、本発明の実施例を示す。左右
両端を円形のカバー(１)(２)で閉じた円筒形シリンダ
(３)の中心には、垂直方向を向く駆動軸(４)が貫設さ
れ、駆動軸(４)の上端には、中心がシリンダ(３)の軸線
上に位置するピニオン(５)が固着されている。1 and 2 show an embodiment of the present invention. Cylindrical cylinder whose left and right ends are closed by circular covers (1) and (2)
In the center of (3), a drive shaft (4) oriented in the vertical direction is penetrated, and at the upper end of the drive shaft (4), a pinion (5) whose center is located on the axis of the cylinder (3) is fixed. Has been done.
【００１７】ピニオン(５)の左右両側方において、シリ
ンダ(３)内には、ピストン(６)(７)が設けられ、左側ピ
ストン(６)の右側面後部、並びに右側ピストン(７)の左
側面前部には、それぞれ、ピニオン(５)を超えて軸線方
向に内方へ突出する突杆(８)(９)が一体的に設けられて
いる。Pistons (6) and (7) are provided in the cylinder (3) on both the left and right sides of the pinion (5), and the rear portion of the right side surface of the left side piston (6) and the left side of the right side piston (7). At the front part of the surface, projection rods (8) (9) projecting inward in the axial direction beyond the pinion (5) are integrally provided.
【００１８】各突杆(８)(９)の対向面には、それぞれ、
ピニオン(５)と適正に噛合する軸線方向のラック(10)(1
1)が止着されている。On the facing surfaces of the projecting rods (8) and (9), respectively,
Axial rack (10) (1) that properly engages the pinion (5)
1) is fixed.
【００１９】左側ピストン(６)の中心には、左方へ突出
する筒状の案内杆(12)の内側端が貫設され、その外側端
は、左側カバー(１)の内側面中心に設けた軸線方向を向
く受筒(13)内に、摺動可能に支持されている。At the center of the left piston (6), an inner end of a cylindrical guide rod (12) projecting leftward is provided, and an outer end thereof is provided at the center of the inner surface of the left cover (1). It is slidably supported in the receiving cylinder (13) facing the axial direction.
【００２０】右側ピストン(７)の中心には、右方へ突出
する筒状の案内杆(14)の内側端が貫設され、その外側端
は、右側カバー(２)の内側面の中心に設けた軸線方向を
向く受筒(15)内に、摺動自在に支持されている。At the center of the right piston (7), an inner end of a cylindrical guide rod (14) protruding rightward is provided so that its outer end is at the center of the inner surface of the right cover (2). It is slidably supported in the receiving cylinder (15) provided in the axial direction.
【００２１】左右のカバー(１)(２)には、圧力空気を、
それぞれ左右のカバー(１)(２)と左右のピストン(６)
(７)との間の空間(16)(17)内へ送入したり、同空間から
排出したりするための、上下に並ぶ給排気孔(18)(19)、
(20)(21)があけられている。しかし、実施例において
は、左のカバー(１)の給排気孔(18)(19)は、プラグ(18
a)(19a)で閉じられている。Pressure air is applied to the left and right covers (1) and (2),
Left and right covers (1) (2) and left and right pistons (6) respectively
Air supply / exhaust holes (18) (19) lined up and down for feeding into and discharging from the space (16) (17) with (7),
(20) (21) have been opened. However, in the embodiment, the air supply / exhaust holes (18) and (19) of the left cover (1) are connected to the plug (18
a) It is closed at (19a).
【００２２】シリンダ(３)の後壁には、前記左右の空間
(16)(17)を連通する軸線方向の通孔(22)があけられてい
る。On the rear wall of the cylinder (3), the left and right spaces
(16) A through hole (22) is formed in the axial direction that communicates with (17).
【００２３】右カバー(２)における上方の給排気孔(20)
は、受筒(15)内へ開口し、同じく下方の給排気孔(21)
は、空間(17)内へ開口している。The upper air supply / exhaust hole (20) in the right cover (2)
Open into the receiving tube (15), and also below the air supply and exhaust holes (21).
Open into the space (17).
【００２４】右カバー(２)における上下に並ぶ給排気孔
(20)(21)は、ともに、シリンダ(３)およびカバー(２)の
中心軸線に対して対称の位置にある。Air supply and exhaust holes lined up and down in the right cover (2)
Both (20) and (21) are located symmetrically with respect to the central axis of the cylinder (3) and the cover (2).
【００２５】上記実施例において、図示を省略した圧力
空気供給源に接続されいている切換弁、例えばソレノイ
ド弁における送入口を、右カバー(２)の上方の給排気孔
(20)に、同じく排出口を下方の給排気孔(21)に接続する
と、圧力空気は、受筒(15)および案内杆(14)の内部を経
て、両ピストン(６)(７)の間の空間(23)内へ入る。In the above-described embodiment, the inlet / outlet port of the switching valve, for example, the solenoid valve, which is connected to the pressure air supply source (not shown) is connected to the air supply / exhaust hole above the right cover (2).
Similarly, when the discharge port is connected to the lower air supply / exhaust hole (21) in (20), the compressed air passes through the inside of the receiving cylinder (15) and the guide rod (14), and then both of the pistons (6) and (7). Enter the space (23) between them.
【００２６】すると両ピストン(６)(７)は外方へ移動
し、ラック(10)(11)を介して、ピニオン(５)を、図２に
おける反時計方向へ回動させる。Then, both pistons (6) and (7) move outward, and the pinion (5) is rotated counterclockwise in FIG. 2 via the racks (10) and (11).
【００２７】この際、両ピストン(６)(７)の外側方の空
間(16)(17)内における空気は、給排気孔(21)から排出さ
れる。At this time, the air in the spaces (16) and (17) outside the pistons (6) and (7) is discharged from the air supply / exhaust holes (21).
【００２８】配管上、あるいは他の機器との配置上の関
係上、前記切換弁の向きを、本発明の装置に対して、上
下逆向きとしたい場合には、カバー(２)の向きを上下逆
にする。When it is desired that the direction of the switching valve be upside down with respect to the device of the present invention due to the relationship of piping and arrangement with other equipment, the cover (2) should be oriented vertically. Reverse.
【００２９】各カバー(２)における上下の給排気孔(20)
(21)は中心対称的であるから、上下を逆としたカバー
(２)における給排気孔(21)(20)に、上下の向きを変えた
切換弁の吸入口および排出口を接続して、全く同じ要領
で作用させることができる。Upper and lower air supply / exhaust holes (20) in each cover (2)
(21) is centrosymmetric, so the cover is upside down
It is possible to connect the intake and exhaust holes (21) and (20) in (2) to the intake port and the exhaust port of the switching valve whose up and down directions are changed and operate them in exactly the same manner.
【００３０】[0030]
【発明の効果】カバーの取付方向を変えることにより、
切換弁の取付方向を変えなくても、圧力空気の給排気方
向を変えることができる。By changing the mounting direction of the cover,
It is possible to change the supply / exhaust direction of the pressurized air without changing the mounting direction of the switching valve.
【図１】本発明の一実施例を示す横断平面図である。FIG. 1 is a cross-sectional plan view showing an embodiment of the present invention.
【図２】図１の中央横断正面図である。FIG. 2 is a front view in the center of FIG.
【図３】従来の圧力空気式直線運動変換装置の一例を示
す横断平面図である。FIG. 3 is a cross-sectional plan view showing an example of a conventional pressure-pneumatic linear motion conversion device.
(１)(２)カバー (３)シリンダ (４)駆動軸 (５)ピニオン (６)(７)ピストン (８)(９)突杆 (10)(11)ラック (12)案内杆 (13)受筒 (14)案内杆 (15)受筒 (16)(17)空間 (18)(19)(20)(21)給排気孔 (18a)(19a)プラグ (22)通孔 (23)空間 (1) (2) Cover (3) Cylinder (4) Drive shaft (5) Pinion (6) (7) Piston (8) (9) Projecting rod (10) (11) Rack (12) Guide rod (13) Receptacle (14) Guide rod (15) Receptacle (16) (17) Space (18) (19) (20) (21) Air supply / exhaust hole (18a) (19a) Plug (22) Through hole (23) Space
Claims (1)
ピニオンの側方に、同ピニオンと噛合するラックと一体
をなすピストンを、軸線方向に摺動しうるようにして設
け、かつシリンダの側端を閉じるカバーに、ピストンの
両側方へ圧力空気を送ったり排出したりするための複数
の給排気孔を設けてなる直線運動変換装置において、前
記給排気孔を、カバーの中心に対して対称的な位置に設
けたことを特徴とする圧力空気式直線運動変換装置。1. A piston integral with a drive shaft provided in a cylinder is provided laterally of a pinion integral with a rack meshing with the pinion so as to be slidable in the axial direction. In a linear motion conversion device in which a cover that closes the side ends is provided with a plurality of air supply / exhaust holes for sending and discharging pressurized air to both sides of the piston, the air supply / exhaust holes with respect to the center of the cover. A pneumatic pneumatic linear motion conversion device, which is provided at symmetrical positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3346794A JPH07243405A (en) | 1994-03-03 | 1994-03-03 | Pneumatic rectilinear motion converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3346794A JPH07243405A (en) | 1994-03-03 | 1994-03-03 | Pneumatic rectilinear motion converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07243405A true JPH07243405A (en) | 1995-09-19 |
Family
ID=12387359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3346794A Pending JPH07243405A (en) | 1994-03-03 | 1994-03-03 | Pneumatic rectilinear motion converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07243405A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100562689B1 (en) * | 2000-05-12 | 2006-03-23 | 삼성전자주식회사 | Pneumatic actuator |
| WO2007126462A2 (en) | 2006-04-05 | 2007-11-08 | Metso Automation Usa Inc. | Fluid powered dual-piston actuator with efficient fluid porting and method of implementation |
-
1994
- 1994-03-03 JP JP3346794A patent/JPH07243405A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100562689B1 (en) * | 2000-05-12 | 2006-03-23 | 삼성전자주식회사 | Pneumatic actuator |
| WO2007126462A2 (en) | 2006-04-05 | 2007-11-08 | Metso Automation Usa Inc. | Fluid powered dual-piston actuator with efficient fluid porting and method of implementation |
| EP2002082A2 (en) * | 2006-04-05 | 2008-12-17 | Metso Automation USA, Inc. | Fluid powered dual-piston actuator with efficient fluid porting and method of implementation |
| JP2009532648A (en) * | 2006-04-05 | 2009-09-10 | メトソ オートメイション ユーエスエー インコーポレイテッド | Fluid powered double piston actuator with efficient fluid movement and method of implementation |
| EP2002082A4 (en) * | 2006-04-05 | 2012-08-22 | Metso Automation Usa Inc | Fluid powered dual-piston actuator with efficient fluid porting and method of implementation |
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