JP2000074006A - Direct acting device gear - Google Patents
Direct acting device gearInfo
- Publication number
- JP2000074006A JP2000074006A JP10247952A JP24795298A JP2000074006A JP 2000074006 A JP2000074006 A JP 2000074006A JP 10247952 A JP10247952 A JP 10247952A JP 24795298 A JP24795298 A JP 24795298A JP 2000074006 A JP2000074006 A JP 2000074006A
- Authority
- JP
- Japan
- Prior art keywords
- cylinder
- drive shaft
- main shaft
- output main
- output
- 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.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、直動駆動装置に
関し、特にシリンダ内に摺動自在に収容した直動ピスト
ンを用いて出力主軸がシリンダに対して相対的に直動駆
動する直動駆動装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear drive device, and more particularly to a linear drive device in which an output main shaft is driven linearly relative to a cylinder by using a linear piston slidably accommodated in a cylinder. It concerns the device.
【０００２】[0002]
【従来の技術】直動駆動装置には、シリンダ内に直動ピ
ストンを摺動自在に収容し、直動ピストンと結合した駆
動軸を出力主軸に連結し、出力主軸がシリンダに対して
相対的に直動駆動するものがある。なお、駆動軸が出力
主軸に連結するためにシリンダの軸方向の一方の壁面を
外周気密状態で貫通する一つのロットタイプと、駆動軸
が出力主軸に連結するためにシリンダの軸方向の一方の
壁面を外周気密状態で貫通するとともにシリンダの軸方
向の他方の壁面も外周気密状態で貫通する両ロットタイ
プがある。そして、、両ロットタイプの場合、通常、シ
リンダの軸方向の他方の壁面を外周気密状態で貫通する
側が他の出力主軸に連結する。2. Description of the Related Art In a linear drive device, a linear piston is slidably housed in a cylinder, and a drive shaft connected to the linear piston is connected to an output main shaft. There is one that drives directly. In addition, one lot type in which the drive shaft is connected to the output main shaft through one wall surface in the axial direction of the cylinder in an outer peripheral air-tight state, and one of the axial direction of the cylinder in which the drive shaft is connected to the output main shaft. There are both lot types that penetrate the wall surface in the outer peripheral airtight state and also penetrate the other wall surface in the axial direction of the cylinder in the outer peripheral airtight state. And in the case of both lot types, the side which penetrates the other wall surface in the axial direction of the cylinder in an outer peripheral airtight state is usually connected to another output main shaft.
【０００３】ここで、駆動軸を出力主軸（他の出力主軸
を含む）に連結する手法としては、以下の２つがある。
第１は、駆動軸の連結側端部の外周に雄ネジを形成し、
出力主軸の連結側の凹みに雌ネジを形成し、両者を螺合
させる手法である。第２は、駆動軸の連結側端部の内周
に雌ネジを形成し、出力主軸の連結側の突起（具体的に
はタップ）に雄ネジを形成し、両者を螺合させる手法で
ある。Here, there are the following two methods for connecting the drive shaft to the output spindle (including other output spindles).
First, a male screw is formed on the outer periphery of the connection side end of the drive shaft,
In this method, a female screw is formed in a recess on the connection side of the output main shaft, and both are screwed together. Second, a female screw is formed on the inner periphery of the connection side end of the drive shaft, and a male screw is formed on a projection (specifically, a tap) on the connection side of the output main shaft, and both are screwed together. .
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、従来の
直動駆動装置では、製造の容易さからシリンダと直動ピ
ストンとを円接触させ、また、駆動軸を出力主軸に連結
するためにシリンダの軸方向の一方の壁面を外周気密状
態で貫通させているが、気密性の確保及び製造の容易さ
から駆動軸とシリンダの軸方向の一方の壁面とを円接触
させていた。However, in the conventional linear drive device, the cylinder and the linear drive piston are brought into circular contact for ease of manufacture, and the shaft of the cylinder is connected to connect the drive shaft to the output main shaft. One wall surface in the direction is penetrated in an outer peripheral airtight state, but the drive shaft and one axial wall surface of the cylinder are in circular contact with each other in order to ensure airtightness and ease of manufacturing.
【０００５】そのため、従来のような駆動軸を出力主軸
に連結する手法では、駆動軸と出力主軸との共回りを気
にしながら螺合させなければならず、手間のかかるもの
であった。また、直動ピストンのストロークが短い場合
には駆動軸の長さも短い場合が多く、この場合はシリン
ダと出力主軸の間隔が狭い条件下で駆動軸を出力主軸に
連結させなければならず、従来のような手法での駆動軸
と出力主軸との共回りを気にしながらの螺合は、より手
間のかかるものであった。Therefore, in the conventional method of connecting the drive shaft to the output main shaft, the drive shaft and the output main shaft have to be screwed together while taking care of the co-rotation thereof, which is troublesome. In addition, when the stroke of the linear motion piston is short, the length of the drive shaft is often short, and in this case, the drive shaft must be connected to the output spindle under the condition that the distance between the cylinder and the output spindle is narrow. In such a method, the screwing while worrying about the co-rotation between the drive shaft and the output main shaft is more troublesome.
【０００６】さらに、両ロットタイプの場合で、シリン
ダの軸方向の他方の壁面を外周気密状態で貫通する側が
他の出力主軸に連結するときは、駆動軸と出力主軸との
連結が外れないように気にしながら駆動軸と他の出力主
軸との共回りも気にしなければならず、より手間のかか
るものであった。また、両ロットタイプの場合で、上記
のように直動ピストンのストロークが短く、駆動軸の長
さも短い場合は、シリンダと出力主軸の間隔が狭い条件
下で作業を行わなければならず、より手間のかかるもの
であった。Further, in the case of both lot types, when the side that penetrates the other wall surface in the axial direction of the cylinder in the outer peripheral airtight state is connected to another output spindle, the connection between the drive shaft and the output spindle is not disconnected. However, it is necessary to take care of the co-rotation between the drive shaft and the other output main shaft while taking care of the above, which is troublesome. In the case of both lot types, when the stroke of the direct acting piston is short and the length of the drive shaft is short as described above, the work must be performed under the condition that the distance between the cylinder and the output main shaft is small, It was troublesome.
【０００７】ゆえに、本発明は、『シリンダ内に直動ピ
ストンを摺動自在に収容し、直動ピストンと結合した駆
動軸を出力主軸に連結し、出力主軸がシリンダに対して
相対的に直動駆動する直動駆動装置において』、駆動軸
と出力主軸との連結に手間のかからない直動駆動装置を
提供することを課題とする。 ＜１項＞[0007] Therefore, the present invention relates to a method of "a linear motion piston is slidably housed in a cylinder, and a drive shaft connected to the linear motion piston is connected to an output main shaft. In a linearly-driven drive device that dynamically drives, it is an object of the present invention to provide a linearly-driven drive device in which the connection between the drive shaft and the output main shaft does not require much trouble. <1>
【０００８】[0008]
【課題を解決するための手段】前述した課題を解決する
ために講じた本発明の解決手段は『駆動軸は出力主軸に
連結するためにシリンダの軸方向の一方の壁面を外周気
密状態で貫通し、シリンダの軸方向の他方の壁面には栓
体が設けられ、直動ピストンと結合した駆動軸は栓体側
から螺合されるボルトにより出力主軸に対してネジ止め
されている』ことである。Means for Solving the Problems To solve the above-mentioned problems, the solution of the present invention is as follows: "The drive shaft penetrates one wall surface in the axial direction of the cylinder in the outer peripheral airtight state to connect to the output main shaft. A plug is provided on the other wall surface in the axial direction of the cylinder, and the drive shaft connected to the linear motion piston is screwed to the output main shaft by a bolt screwed from the plug. .
【０００９】上記解決手段はつぎのように作用する。１
つのロットタイプでは、栓体を外し、栓体側から螺合さ
れるボルトにより出力主軸に対して駆動軸をネジ止めで
きるので、簡単に駆動軸と出力主軸を連結できる。ま
た、連結後は、栓体を取付けることでシリンダは閉じた
状態に戻る。The above solution works as follows. 1
In one lot type, the drive shaft can be screwed to the output main shaft with a bolt removed from the plug body and screwed from the plug body side, so that the drive shaft and the output main shaft can be easily connected. After the connection, the cylinder returns to the closed state by attaching the stopper.
【００１０】[0010]
【発明の効果】本発明は、上記構成であるから次の特有
の効果を有する。栓体を外し、栓体側から螺合されるボ
ルトにより出力主軸に対して駆動軸をネジ止めして簡単
に駆動軸と出力主軸を連結できるので、従来のように駆
動軸と出力主軸との共回りを気にしながら螺合させるも
のではなく、手間がかからない。特に、シリンダと出力
主軸の間隔が狭い条件下では、手間がかからないことが
顕著になる。According to the present invention having the above configuration, the following specific effects are obtained. By removing the plug and screwing the drive shaft to the output main shaft with bolts screwed from the plug side, the drive shaft and the output main shaft can be easily connected. It is not a screw that is screwed in while taking care of the surroundings, and it does not take much effort. In particular, under the condition where the distance between the cylinder and the output main shaft is narrow, it is remarkable that no labor is required.
【００１１】＜２項＞<Item 2>
【００１２】[0012]
【課題を解決するための手段】前述した課題を解決する
ために講じた本発明の解決手段は『駆動軸は、出力主軸
に連結するためにシリンダの軸方向の一方の壁面を外周
気密状態で貫通し、シリンダの軸方向の他方の壁面も外
周気密状態で貫通し、直動ピストンと結合した駆動軸
は、シリンダの軸方向の他方の壁面を外周気密状態で貫
通した側から螺合されるボルトにより出力主軸に対して
ネジ止めされている』ことである。Means for Solving the Problems To solve the above-mentioned problem, the solution of the present invention is described as follows. "The drive shaft is connected to the output main shaft with one wall surface in the axial direction of the cylinder in an outer peripheral airtight state. The drive shaft coupled with the direct-acting piston is screwed in from the side that has penetrated the other wall in the axial direction of the cylinder in the outer peripheral airtight state. It is screwed to the output spindle by bolts. "
【００１３】上記解決手段はつぎのように作用する。両
ロットタイプでも、シリンダの軸方向の他方の壁面を外
周気密状態で貫通した側から螺合されるボルトにより出
力主軸に対して駆動軸をネジ止めできるので、簡単に駆
動軸と出力主軸を連結できる。The above-mentioned solution works as follows. With both lot types, the drive shaft can be screwed to the output main shaft with a bolt that is screwed from the side that penetrates the other wall in the axial direction of the cylinder in an airtight manner, so the drive shaft and the output main shaft can be easily connected. it can.
【００１４】[0014]
【発明の効果】本発明は、上記構成であるから次の特有
の効果を有する。シリンダの軸方向の他方の壁面を外周
気密状態で貫通した側から螺合されるボルトにより出力
主軸に対して駆動軸をネジ止めして簡単に駆動軸と出力
主軸を連結できるので、従来のように駆動軸と出力主軸
との共回りを気にしながら螺合させるものではなく、手
間がかからない。特に、シリンダと出力主軸の間隔が狭
い条件下では、手間がかからないことが顕著になる。According to the present invention having the above configuration, the following specific effects are obtained. Since the drive shaft is screwed to the output main shaft with a bolt screwed from the side that penetrates the other wall surface in the axial direction of the cylinder in an outer peripheral airtight state, the drive shaft and the output main shaft can be easily connected, so that the conventional Therefore, the screw is not screwed in while taking care of the co-rotation of the drive shaft and the output main shaft. In particular, under the condition where the distance between the cylinder and the output main shaft is narrow, it is remarkable that no labor is required.
【００１５】なお、上記発明（２項）に『駆動軸は、他
の出力主軸に連結するためにシリンダの軸方向の他方の
壁面も外周気密状態で貫通し、他の出力主軸には孔が形
成されており、直動ピストンと結合した駆動軸は、シリ
ンダの軸方向の他方の壁面を外周気密状態で貫通した側
から孔を介して螺合されるボルトにより、他の出力主軸
に連結するとともに出力主軸に対してネジ止めされてい
る』ものでは、２項の効果に加えて、両ロットタイプの
場合でシリンダの軸方向の他方の壁面を外周気密状態で
貫通する側が他の出力主軸に連結するときでも、駆動軸
と出力主軸との連結が外れないように気にしながら駆動
軸と他の出力主軸との共回りも気にしなければならない
こともなく、単にボルトの締結で、孔による他の出力主
軸と駆動軸との連結及びネジ止めによる出力主軸と駆動
軸との連結を行えるので、手間がかからないものにな
る。特に、シリンダと出力主軸の間隔が狭い条件下で
は、手間がかからないことが顕著になる。 ［その他］ ＜３項＞上記発明（１、２項）に『シリンダ又は出力主
軸を筒体と結合し、筒体に対して出力主軸又はシリンダ
をすすみ対偶させてなる』ものでは、出力主軸がシリン
ダに対して相対的に直動駆動する際に回らなくてすむ。[0015] In the above invention (Claim 2), "the drive shaft penetrates the other wall surface in the axial direction of the cylinder in an airtight outer periphery in order to connect to the other output main shaft, and a hole is formed in the other output main shaft. The drive shaft, which is formed and connected to the direct-acting piston, is connected to another output main shaft by a bolt that is screwed through a hole from a side that penetrates the other wall surface in the axial direction of the cylinder in an outer peripheral airtight state. Is screwed together with the output spindle.) In addition to the effect of item 2, in the case of both lot types, the side that penetrates the other wall in the axial direction of the cylinder in an airtight outer peripheral state is connected to the other output spindle. Even when connecting, there is no need to worry about the co-rotation of the drive shaft and the other output spindle while taking care not to disconnect the connection between the drive shaft and the output spindle. Linkage between other output spindle and drive shaft And so allows the connection between the output spindle and the drive shaft by screws, the ones that is not time-consuming. In particular, under the condition where the distance between the cylinder and the output main shaft is narrow, it is remarkable that no labor is required. [Others] <Claim 3> In the above invention (Claims 1 and 2), in which the cylinder or the output spindle is combined with the cylinder and the output spindle or the cylinder is paired with the cylinder, the output spindle is It is not necessary to rotate when driven linearly relative to the cylinder.
【００１６】なお、シリンダの軸方向の一方の壁面を貫
通した駆動軸を円接触で外周気密状態とすることが可能
であり、気密性及び製造の容易性を維持しながら出力主
軸がシリンダに対して相対的に直動駆動する際に回らな
くてすむ。 ＜４項＞上記発明（３項）に『出力主軸は多角形断面部
を備え、出力主軸と結合した筒体は、出力主軸の多角形
断面部の胴部平面部と対面する平面部を有する多角形孔
部を備え、出力主軸の外周面と固定部材の内周面との間
には、胴部平面部と平面部とに転がり接触する複数の転
動子を介在させた』ものでは、簡単な構造で、出力主軸
がシリンダに対して相対的に直動駆動する際に回らなく
てすむ。The drive shaft which penetrates one wall surface in the axial direction of the cylinder can be brought into an outer peripheral airtight state by circular contact, and the output main shaft can be moved relative to the cylinder while maintaining airtightness and easy manufacturing. It is not necessary to rotate when relatively linearly driven. <Item 4> In the above invention (item 3), "the output spindle has a polygonal cross section, and the cylindrical body connected to the output spindle has a plane portion facing the trunk plane portion of the polygonal cross section of the output spindle. With a polygonal hole, between the outer peripheral surface of the output main shaft and the inner peripheral surface of the fixing member, a plurality of rolling elements that are in rolling contact with the body flat portion and the flat portion were interposed. With a simple structure, the output main shaft does not have to rotate when driven linearly relative to the cylinder.
【００１７】[0017]
【発明の実施の形態】以下、本願発明の実施の形態を、
図示例と共に説明する。図１は、本発明の実施の形態に
係る直動駆動装置を示した断面図である。直動駆動装置
(40)は、シリンダ(41)内に駆動軸(45)とは別体の直動ピ
ストン(43)を内部に摺動自在に収容している。そして、
シリンダ(41)は、壁面(41a) と壁面(41b) とが別の部材
で構成されて、駆動軸(45)が出力主軸(13)に連結するた
めに壁面(41a) を外周気密状態で貫通し、壁面(41b) に
は直動ピストン(43)における駆動軸(45)の取付け部(45
a) に対応する部位に対向する位置に取り外し自在の栓
体(37)が設けられている。そして、栓体(37)が外され、
螺合されるボルト(47)により、駆動軸(45)が直動ピスト
ン(43)にネジ止めされて結合するとともに、駆動軸(45)
が出力主軸(13)にネジ止めされて連結する。その後、栓
体(37)が取付けられ、シリンダ(41)は閉じた状態にな
る。このような構成の直動駆動装置(40)は、出力主軸(1
3)をシリンダ(41)に対して相対的に直動駆動できるもの
になる。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described together with the illustrated example. FIG. 1 is a sectional view showing a linear drive device according to an embodiment of the present invention. Linear drive
In (40), a linear motion piston (43) separate from the drive shaft (45) is slidably housed in the cylinder (41). And
In the cylinder (41), the wall surface (41a) and the wall surface (41b) are made of different members, and the drive shaft (45) is connected to the output main shaft (13) so that the wall surface (41a) is sealed in an outer peripheral airtight state. The drive shaft (45) mounting part (45) of the linear motion piston (43) is
A removable plug (37) is provided at a position facing the portion corresponding to (a). And the stopper (37) is removed,
The drive shaft (45) is screwed and coupled to the linear motion piston (43) by the bolt (47) to be screwed, and the drive shaft (45)
Are screwed and connected to the output spindle (13). Thereafter, the stopper (37) is attached, and the cylinder (41) is closed. The linear drive device (40) having such a configuration includes the output spindle (1).
3) can be driven linearly relative to the cylinder (41).
【００１８】このように、栓体を外し、栓体側から螺合
されるボルト(47)により出力主軸(13)に対して駆動軸(4
5)をネジ止めできるので、簡単に駆動軸(45)と出力主軸
(13)とを締結できる。したがって、駆動軸(45)と出力主
軸(13)との共回りを気にしながら締結する必要がなく、
手間がかからない。特に、直動ピストン(43)のストロー
クが短く、駆動軸(45)も短くて、シリンダ(41)と出力主
軸(13)の間隔が狭い条件下では、この手間の軽減は有効
的なものになる。As described above, the plug is removed, and the drive shaft (4) is connected to the output main shaft (13) by the bolt (47) screwed from the plug body side.
5) can be screwed, so the drive shaft (45) and output spindle can be easily
(13) can be concluded. Therefore, it is not necessary to fasten while worrying about the co-rotation of the drive shaft (45) and the output main shaft (13),
It does not take time and effort. In particular, under the condition that the stroke of the direct acting piston (43) is short, the drive shaft (45) is short, and the distance between the cylinder (41) and the output main shaft (13) is narrow, this reduction of labor is effective. Become.
【００１９】なお、図１では、シリンダ(41)が壁面(41
a) と壁面(41b) とが別の部材で構成されるものとした
が、同一部材でもよい。また、図１では、ボルト(47)で
駆動軸(45)と直動ピストン(43)との結合及び駆動軸(45)
と出力主軸(13)との連結を行ったが、駆動軸(45)と直動
ピストン(43)とが一体ものや別体であっても接着剤等で
結合させていれば、ボルト(47)で駆動軸(45)と出力主軸
(13)との連結を行うことになる。In FIG. 1, the cylinder (41) has a wall (41).
Although a) and the wall surface (41b) are made of different members, they may be the same member. In FIG. 1, the bolt (47) couples the drive shaft (45) to the linear motion piston (43) and the drive shaft (45).
And the output spindle (13), but if the drive shaft (45) and the linear motion piston (43) are integrated or separated by an adhesive or the like, the bolts (47 ) With drive shaft (45) and output spindle
Connection with (13) will be performed.
【００２０】図２は、本発明の他の実施の形態に係る直
動駆動装置を示した断面図である。直動駆動装置(46)
は、図１の場合のような１つのロットタイプと異なり、
駆動軸(49)は第１駆動軸(49a) と第２駆動軸(49b) で構
成され両ロットタイプである。シリンダ(48)は、出力主
軸(13)に連結するために壁面(48a) を外周気密状態で貫
通する第１駆動軸(49a) と壁面(48b) を外周気密状態で
貫通する第２駆動軸(49b) の両者とは別体の直動ピスト
ン(43)を内部に摺動自在に収容している。そして、シリ
ンダ(48)は、壁面(48a) と壁面(48b) とが別の部材で構
成されている点は、図１と同様であるが、第２駆動軸(4
9b) が壁面(48b) を外周気密状態で貫通するため栓体(3
7)が壁面(48b) に設けられていない点は、図１と異な
る。そして、第２駆動軸(49b) の貫通した側の端部から
螺合されるボルト(51)により、第２駆動軸(49b) は取付
け部(49bb)で直動ピストン(43)にネジ止めされて結合
し、第１駆動軸(49a) は取付け部(49aa)で直動ピストン
(43)にネジ止めされて結合するとともに、第１駆動軸(4
9a) が出力主軸(13)にネジ止めされて連結する。このよ
うな構成の直動駆動装置(46)は、出力主軸(13)をシリン
ダ(48)に対して相対的に直動駆動できるものになる。FIG. 2 is a sectional view showing a linear drive device according to another embodiment of the present invention. Linear drive (46)
Is different from one lot type as in Fig. 1,
The drive shaft (49) is composed of a first drive shaft (49a) and a second drive shaft (49b), and is of both lot types. The cylinder (48) includes a first drive shaft (49a) penetrating the wall surface (48a) in an outer peripheral airtight state to connect to the output main shaft (13), and a second drive shaft penetrating the wall surface (48b) in the outer peripheral airtight state. (49b), a linear motion piston (43) separate from both is slidably housed therein. The cylinder (48) is similar to FIG. 1 in that the wall surface (48a) and the wall surface (48b) are formed of different members, but the second drive shaft (4
9b) penetrates the wall (48b) in an airtight manner around the wall (3b).
7) is not provided on the wall (48b), which is different from FIG. Then, the second drive shaft (49b) is screwed to the direct acting piston (43) at the mounting portion (49bb) by a bolt (51) screwed from the end of the second drive shaft (49b) on the penetrating side. And the first drive shaft (49a) is connected to the linear motion piston at the mounting part (49aa).
(43) and connected with the first drive shaft (4
9a) is screwed and connected to the output spindle (13). The linear drive device (46) having such a configuration can drive the output main shaft (13) relatively linearly with respect to the cylinder (48).
【００２１】なお、図２でも、シリンダ(41)が壁面(41
a) と壁面(41b) とが別の部材で構成されるものとした
が、同一部材でもよい。また、図２では、ボルト(51)で
第１駆動軸(49a) と直動ピストン(43)との結合、第２駆
動軸(49b) と直動ピストン(43)との結合及び駆動軸(45)
と出力主軸(13)との連結を行ったが、第１駆動軸(49a)
と第２駆動軸(49b) と直動ピストン(43)が一体ものや別
体であっても接着剤等で結合させていれば、ボルト(51)
が第１駆動軸(49a) と出力主軸(13)との連結を行うこと
になる。すなわち、ボルト(51)は、第１駆動軸(49a) と
出力主軸(13)との締結を行うものであり、第１駆動軸(4
9a) と直動ピストン(43)が別体であるか、第２駆動軸(4
9b) と直動ピストン(43)が別体であるかは問わず、第１
駆動軸(49a) と直動ピストン(43)との結合に使われる
か、第２駆動軸(49b) と直動ピストン(43)との結合に使
われるかも問わない。In FIG. 2, the cylinder (41) also has a wall (41).
Although a) and the wall surface (41b) are made of different members, they may be the same member. In FIG. 2, the bolt (51) connects the first drive shaft (49a) to the linear piston (43), the second drive shaft (49b) connects the linear piston (43), and the drive shaft (49). 45)
The output drive shaft (13) and the first drive shaft (49a).
Even if the second drive shaft (49b) and the linear motion piston (43) are integrated or separated by an adhesive or the like, the bolt (51)
Performs the connection between the first drive shaft (49a) and the output main shaft (13). That is, the bolt (51) is for fastening the first drive shaft (49a) and the output main shaft (13), and the first drive shaft (4
9a) and the linear motion piston (43) are separate units, or the second drive shaft (4
9b) and the direct acting piston (43)
It may be used for connection between the drive shaft (49a) and the linear motion piston (43) or used for connection between the second drive shaft (49b) and the direct motion piston (43).
【００２２】このように、両ロットタイプであっても、
螺合されるボルト(51)により駆動軸(49)（第１駆動軸(4
9a) ）を出力主軸(13)に対してネジ止めできるので、簡
単に駆動軸(49)と出力主軸(13)とを締結できる。したが
って、駆動軸(49)と出力主軸(13)との共回りを気にしな
がら締結する必要がなく、手間がかからない。特に、直
動ピストン(43)のストロークが短く、駆動軸(49)も短く
て、シリンダ(48)と出力主軸(13)の間隔が狭い条件下で
は、この手間の軽減は有効的なものになる。Thus, even if both lot types are used,
The drive shaft (49) (first drive shaft (4
9a)) can be screwed to the output spindle (13), so that the drive shaft (49) and the output spindle (13) can be easily fastened. Therefore, there is no need to fasten while paying attention to the co-rotation of the drive shaft (49) and the output main shaft (13). In particular, under the condition that the stroke of the direct acting piston (43) is short, the drive shaft (49) is short, and the distance between the cylinder (48) and the output main shaft (13) is narrow, this reduction of labor is effective. Become.
【００２３】なお、図２に示す両ロットタイプでは、駆
動軸(49)（第１駆動軸(49a) ）の一端側が出力主軸(13)
に締結するのみならず、駆動軸(49)（第２駆動軸(49b)
）の他端側も仮想線で示す他の出力主軸(14)に締結さ
れることがあるが、この締結は、他の出力主軸(14)に孔
(14a) をあけておき、ボルト(51)を他の出力主軸(14)の
孔(14a) を介して駆動軸(49)（第２駆動軸(49b) ）の他
端側から螺合すればよい。In the both lot type shown in FIG. 2, one end of the drive shaft (49) (first drive shaft (49a)) is connected to the output main shaft (13).
The drive shaft (49) (second drive shaft (49b)
) May be fastened to another output spindle (14) indicated by a virtual line, but this fastening is performed by a hole in the other output spindle (14).
(14a) is opened, and the bolt (51) is screwed from the other end of the drive shaft (49) (second drive shaft (49b)) through the hole (14a) of the other output main shaft (14). I just need.
【００２４】この場合、駆動軸(49)と出力主軸(13)との
連結が外れないように気にしながら駆動軸(49)と他の出
力主軸(14)との共回りも気にしなければならないことも
なく、単にボルト(51)の締結で、孔(14a) による他の出
力主軸(14)と駆動軸(49)との連結及びネジ止めによる出
力主軸(13)と駆動軸(49)との連結を行えるので、手間が
かからないものになる。特に、前述した場合と同様に、
シリンダ(48)と出力主軸(13)（出力主軸(14)）の間隔が
狭い条件下では、手間がかからないことが顕著になる。In this case, while taking care not to disconnect the drive shaft (49) and the output main shaft (13), the co-rotation between the drive shaft (49) and the other output main shaft (14) must also be taken into consideration. It is possible to connect the other output main shaft (14) to the drive shaft (49) by the hole (14a) simply by fastening the bolt (51) and screw the output main shaft (13) and the drive shaft (49). Since it can be connected to the system, it does not take much time. In particular, similar to the case described above,
Under the condition where the distance between the cylinder (48) and the output spindle (13) (output spindle (14)) is narrow, it becomes remarkable that no labor is required.
【００２５】図３は、本発明のさらに他の実施の形態に
係る直動駆動装置を示した断面図である。直動駆動装置
(11)は、出力主軸(13)と、筒体(15)に一体のシリンダ(1
7)と、シリンダ(17)内に摺動自在に収容した直動ピスト
ン(19)と、直動ピストン(19)に一体の駆動軸(21)とを備
える。直動駆動装置(11)は、シリンダ(17)を軸方向に貫
通する４本のボルト(18)でシリンダ(17)と土台(12)とが
固定され、出力主軸(13)がシリンダ(17)に対して直動駆
動する装置であり、出力主軸(13)がシリンダ(17)に結合
した筒体(15)に対してすすみ対偶している。そして、直
動駆動装置(11)は、駆動軸(21)を出力主軸(13)に連結し
ている。FIG. 3 is a sectional view showing a linear drive device according to still another embodiment of the present invention. Linear drive
(11) is an output spindle (13) and a cylinder (1
7), a linear motion piston (19) slidably housed in a cylinder (17), and a drive shaft (21) integrated with the linear motion piston (19). In the linear drive device (11), the cylinder (17) and the base (12) are fixed by four bolts (18) penetrating the cylinder (17) in the axial direction, and the output main shaft (13) is connected to the cylinder (17). ), The output main shaft (13) of which is in parallel with the cylinder (15) connected to the cylinder (17). And the linear drive device (11) connects the drive shaft (21) to the output main shaft (13).
【００２６】すすみ対偶について説明する。出力主軸(1
3)は多角形断面部(23)を備えており、筒体(15)は出力主
軸(13)の多角形断面部(23)の胴部平面部(25)と対面する
平面部(27)を有する多角形孔部(29)を備えている。筒体
(15)の軸方向下端側がシリンダ(17)に連続的に接続して
一体になっているため、筒体(15)とシリンダ(17)とは結
合状態になっている。そして、出力主軸(13)の外周面と
筒体(15)の内周面との間には、複数の転動子(31)を備え
たリテーナ(33)が設けられており、複数の転動子(31)が
胴部平面部(25)と平面部(27)とに転がり接触するように
介在している。Next, the paired pair will be described. Output spindle (1
3) has a polygonal cross section (23), and the cylindrical body (15) has a plane section (27) facing the trunk plane section (25) of the polygon cross section (23) of the output main shaft (13). And a polygonal hole (29) having Cylindrical body
Since the lower end side in the axial direction of (15) is continuously connected to the cylinder (17) to be integrated, the cylinder (15) and the cylinder (17) are in a connected state. A retainer (33) having a plurality of rolling elements (31) is provided between the outer peripheral surface of the output spindle (13) and the inner peripheral surface of the cylindrical body (15). The moving element (31) is interposed so as to be in rolling contact with the trunk plane section (25) and the plane section (27).
【００２７】このように構成された直動駆動装置(11)
は、エアー式や油圧式でシリンダ(17)のシリンダ室の部
屋(35a) と部屋(35b) とにエアーや油を入れ、シリンダ
(17)と円接触する直動ピストン(19)を直動させるが、出
力主軸(13)の多角形断面部(23)の胴部平面部(25)と筒体
(15)の多角形孔部(29)の平面部(27)とを対面させ、複数
の転動子(31)が胴部平面部(25)と平面部(27)とに転がり
接触するように介在しているので、出力主軸(13)を筒体
(15)に対してすすみ対偶させることができている。[0027] The linear drive device (11) thus configured.
Is a pneumatic or hydraulic system, injecting air or oil into the chamber (35a) and room (35b) of the cylinder chamber of the cylinder (17),
The linear motion piston (19), which makes circular contact with (17), is linearly moved, but the cylindrical body (25) of the polygonal cross section (23) of the output spindle (13) and the cylinder
(15) The polygonal hole (29) faces the plane part (27) so that the plurality of rolling elements (31) are in rolling contact with the trunk plane part (25) and the plane part (27). Output spindle (13)
(15) can be paired.
【００２８】このようにすすみ対偶が可能になったこと
で、出力主軸(13)がシリンダ(17)に対して直動駆動する
際に回らず、回らない直動駆動を必要とする場合にも対
応できるようになっている。なお、駆動軸(21)の下端側
が直動ピストン(19)に連続的に接続して一体になってい
るため、直動ピストン(19)と駆動軸(21)とは結合状態に
なっている。Since the pairing process is enabled, the output spindle (13) does not rotate when driven linearly with respect to the cylinder (17), and the output spindle (13) needs to be driven not to rotate. It has become available. In addition, since the lower end side of the drive shaft (21) is continuously connected to the linear motion piston (19) to be integrated, the linear motion piston (19) and the drive shaft (21) are in a connected state. .
【００２９】また、駆動軸(21)は出力主軸(13)に連結す
るためにシリンダ(17)の軸方向の一方の壁面(17a) を外
周気密状態で貫通しており、シリンダ(17)の軸方向の他
方の壁面(17b) には直動ピストン(19)における駆動軸(2
1)との接続部に対応する部位に対向する位置に取り外し
自在の栓体(37)を設けている。そして、栓体(37)が外さ
れ、螺合されるボルト(39)により駆動軸(21)を出力主軸
(13)に連結させている（図１と同様）。連結後は栓体(3
7)が取付けられることで、シリンダ(17)は閉じた状態に
戻るようになっている。Further, the drive shaft (21) penetrates one axial wall surface (17a) of the cylinder (17) in an outer peripheral airtight state to connect to the output main shaft (13). On the other axial wall (17b), the drive shaft (2
A detachable plug (37) is provided at a position facing a portion corresponding to the connection with (1). The plug (37) is removed, and the drive shaft (21) is driven by the bolt (39) to be screwed into the output main shaft.
(13) (similar to FIG. 1). After connection, plug (3
By mounting 7), the cylinder (17) returns to the closed state.
【００３０】ここで、駆動軸(21)は出力主軸(13)に連結
するためにシリンダ(17)の軸方向の一方の壁面(17a) を
外周気密状態で貫通しているが、駆動軸(21)と壁面(17
a) とは円接触ですんでいる。すなわち、出力主軸(13)
がシリンダ(17)に直動駆動する際に回らないようにする
には、上記のようなすすみ対偶の手法の他、駆動軸(2
1)) と壁面(17a) とを円接触ではなく多角形での接触に
すれば可能であるが、図３では、円接触によって気密状
態の確保と製造の容易さを考慮したものになっている。Here, the drive shaft (21) penetrates one wall surface (17a) in the axial direction of the cylinder (17) in an outer peripheral airtight state in order to connect to the output main shaft (13). 21) and the wall (17
a) is in circle contact. That is, the output spindle (13)
In order to prevent the cylinder from rotating when driven linearly to the cylinder (17), besides the above-mentioned paired method, the drive shaft (2
1)) and the wall (17a) can be formed by making a polygonal contact instead of a circular contact. However, in FIG. 3, circular contact is taken into consideration to ensure an airtight state and ease of manufacturing. I have.
【００３１】さらに、土台(12)によって固定されたシリ
ンダ(17)に対して出力主軸(13)が直動駆動することを示
したが、出力主軸(13)を固定してシリンダ(17)を直動駆
動するようにしてもよい。 ［その他］ 図１の場合のように出力主軸(13)の外周面とシリンダ
(17)に結合した筒体(15)の内周面との間に胴部平面部(2
5)と平面部(27)とに転がり接触する複数の転動子(31)を
介在させるのではなく、出力主軸に結合した筒体の内周
面とシリンダの外周面との間に複数の転動子を備えたリ
テーナを設け、シリンダの胴部平面部と出力主軸の平面
部とに転がり接触する複数の転動子を介在させてもよ
い。Further, it has been shown that the output spindle (13) is driven linearly with respect to the cylinder (17) fixed by the base (12), but the output spindle (13) is fixed and the cylinder (17) is fixed. You may make it drive linearly. [Others] As in the case of FIG. 1, the outer peripheral surface of the output spindle (13) and the cylinder
(17) is connected to the inner peripheral surface of the cylindrical body (15).
5) and the flat portion (27), instead of interposing a plurality of rolling elements (31) in rolling contact, a plurality of rolling elements (31) are provided between the inner peripheral surface of the cylinder coupled to the output main shaft and the outer peripheral surface of the cylinder. A retainer provided with a rolling element may be provided, and a plurality of rolling elements that are in rolling contact with the plane part of the body of the cylinder and the plane part of the output main shaft may be interposed.
【００３２】この場合も、筒体によってすすみ対偶が実
現し、出力主軸がシリンダに対して相対的に直動駆動す
る際に回らなくてすむ。 図３の実施の形態では、筒体とシリンダとを一体のも
ので示したが、別体のものを結合してもよい。このこと
は、で説明した出力主軸と筒体との関係についても同
様である。In this case as well, a smooth pair is realized by the cylindrical body, so that the output main shaft does not have to rotate when driven linearly relative to the cylinder. In the embodiment of FIG. 3, the cylindrical body and the cylinder are shown as one body, but separate bodies may be combined. This is the same for the relationship between the output main shaft and the cylinder described above.
【００３３】今まで説明した実施の形態では、出力主
軸の外周面と筒体の内周面との間、又は、筒体の内周面
とシリンダの外周面との間に、胴部平面部と平面部とに
転がり接触する複数の転動子を介在させて、すすみ対偶
させたが、複数の転動子を介在させずに胴部平面部と平
面部とを摺動させてすすみ対偶させてもよく、また、た
とえば出力主軸を円柱状にして外周面の軸方向に１条の
突出部を設け、筒体の内周面の軸方向に前記１条の突出
部に係合する１条の凹み部を設けてすすみ対偶させても
よい。In the embodiments described so far, the trunk plane portion is provided between the outer peripheral surface of the output spindle and the inner peripheral surface of the cylinder, or between the inner peripheral surface of the cylinder and the outer peripheral surface of the cylinder. Although a plurality of rolling elements that are in rolling contact with the flat part are interposed, a pair is formed, but the flat part and the flat part are slid by sliding the plane part and the flat part without interposing a plurality of the rolling elements. Alternatively, for example, the output main shaft may be formed in a columnar shape, and one projection may be provided in the axial direction of the outer peripheral surface, and one projection may be engaged with the one projection in the axial direction of the inner peripheral surface of the cylindrical body. May be provided to form a pair.
【００３４】筒体に対して出力主軸又はシリンダをす
すみ対偶させる場合において、シリンダ機構は、図１に
示したものに対応させて説明したが、図２に示したもの
に対応させてよい。In the case where the output main shaft or the cylinder is connected to the cylindrical body, the cylinder mechanism has been described with reference to the one shown in FIG. 1, but may be one corresponding to that shown in FIG.
【図１】本発明の実施の形態に係る直動駆動装置を示し
た断面図である。FIG. 1 is a sectional view showing a linear drive device according to an embodiment of the present invention.
【図２】本発明の他の実施の形態に係る直動駆動装置を
示した断面図である。FIG. 2 is a sectional view showing a linear drive device according to another embodiment of the present invention.
【図３】本発明のさらに他の実施の形態に係る直動駆動
装置を示した断面図である。FIG. 3 is a cross-sectional view showing a linear drive device according to still another embodiment of the present invention.
(11)、(40)、(46)・・・直動駆動装置 (13)・・・出力主軸 (15)・・・筒体 (17)、(41)、(48)・・・シリンダ (19)、(43)・・・直動ピストン (21)、(45)、(49)・・・駆動軸 (23)・・・多角形断面部 (25)・・・胴部平面部 (27)・・・平面部 (29)・・・多角形孔部 (31)・・・転動子 (37)・・・栓体 (39)、(47)、(51)・・・ボルト （尚、各図中同一符号は同一又は相当部分を示す。） (11), (40), (46) ... linear drive (13) ... output spindle (15) ... cylinder (17), (41), (48) ... cylinder ( 19), (43) ・ ・ ・ Direct acting piston (21), (45), (49) ・ ・ ・ Drive shaft (23) ・ ・ ・ Polygonal cross section (25) ・ ・ ・ Body flat part (27 ) ・ ・ ・ Flat part (29) ・ ・ ・ Polygonal hole (31) ・ ・ ・ Roller (37) ・ ・ ・ Plug (39), (47), (51) ・ ・ ・ Bolt (Note , The same reference numerals in the drawings indicate the same or corresponding parts.)
Claims (4)
収容し、前記直動ピストンと結合した駆動軸を出力主軸
に連結し、前記出力主軸が前記シリンダに対して相対的
に直動駆動する直動駆動装置において、 前記駆動軸は前記出力主軸に連結するために前記シリン
ダの軸方向の一方の壁面を外周気密状態で貫通し、前記
シリンダの軸方向の他方の壁面には栓体が設けられ、 前記直動ピストンと結合した駆動軸は前記栓体側から螺
合されるボルトにより前記出力主軸に対してネジ止めさ
れている直動駆動装置。1. A linear motion piston is slidably housed in a cylinder, and a drive shaft coupled to the linear motion piston is connected to an output main shaft, and the output main shaft is linearly driven relative to the cylinder. In the linear drive device, the drive shaft penetrates one wall surface in the axial direction of the cylinder in an outer peripheral airtight state in order to connect to the output main shaft, and a plug is provided on the other wall surface in the axial direction of the cylinder. A linear drive device provided, wherein a drive shaft coupled to the linear motion piston is screwed to the output main shaft with a bolt screwed from the plug body side.
収容し、前記直動ピストンと結合した駆動軸を出力主軸
に連結し、前記出力主軸が前記シリンダに対して相対的
に直動駆動する直動駆動装置において、 前記駆動軸は、前記出力主軸に連結するために前記シリ
ンダの軸方向の一方の壁面を外周気密状態で貫通し、前
記シリンダの軸方向の他方の壁面も外周気密状態で貫通
し、 前記直動ピストンと結合した駆動軸は、前記シリンダの
軸方向の他方の壁面を外周気密状態で貫通した側から螺
合されるボルトにより前記出力主軸に対してネジ止めさ
れている直動駆動装置。2. A linear motion piston is slidably housed in a cylinder, and a drive shaft connected to the linear motion piston is connected to an output main shaft, and the output main shaft is linearly driven relative to the cylinder. In the linear drive device, the drive shaft penetrates one wall surface in the axial direction of the cylinder in an outer peripheral airtight state to connect to the output main shaft, and the other wall surface in the axial direction of the cylinder also has an outer peripheral airtight state. The drive shaft coupled with the linear motion piston is screwed to the output main shaft by a bolt that is screwed from the side that penetrates the other wall surface in the axial direction of the cylinder in an outer peripheral airtight state. Linear drive.
結合し、前記筒体に対して前記出力主軸又は前記シリン
ダをすすみ対偶させてなる請求項１又は２に記載の直動
駆動装置。3. The linear drive device according to claim 1, wherein the cylinder or the output main shaft is connected to a cylindrical body, and the output main shaft or the cylinder is fitted to the cylindrical body.
記出力主軸と結合した前記筒体は、前記出力主軸の前記
多角形断面部の胴部平面部と対面する平面部を有する多
角形孔部を備え、前記出力主軸の外周面と前記固定部材
の内周面との間には、前記胴部平面部と前記平面部とに
転がり接触する複数の転動子を介在させた請求項３に記
載の直動駆動装置。4. The output spindle has a polygonal cross section, and the cylindrical body coupled with the output spindle has a polygonal section having a plane portion facing the trunk plane portion of the polygonal cross section of the output spindle. A hole is provided, and between the outer peripheral surface of the output main shaft and the inner peripheral surface of the fixing member, a plurality of rolling elements that are in rolling contact with the body flat portion and the flat portion are interposed. 4. The linear drive device according to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24795298A JP3888782B2 (en) | 1998-09-02 | 1998-09-02 | Linear drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24795298A JP3888782B2 (en) | 1998-09-02 | 1998-09-02 | Linear drive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000074006A true JP2000074006A (en) | 2000-03-07 |
| JP3888782B2 JP3888782B2 (en) | 2007-03-07 |
Family
ID=17171000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24795298A Expired - Fee Related JP3888782B2 (en) | 1998-09-02 | 1998-09-02 | Linear drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3888782B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003518229A (en) * | 1999-12-21 | 2003-06-03 | ヴァリーフォーム インコーポレーテッド | Pressure-actuated piston and cylinder unit used for dies |
| KR101011723B1 (en) | 2008-11-06 | 2011-01-31 | 볼보 컨스트럭션 이큅먼트 에이비 | anti-relaxation apparatus of piston of hydraulic and pneumatic cylinder |
| CN102756489A (en) * | 2011-04-25 | 2012-10-31 | 许宏 | Electrically driven hydraulic press |
-
1998
- 1998-09-02 JP JP24795298A patent/JP3888782B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003518229A (en) * | 1999-12-21 | 2003-06-03 | ヴァリーフォーム インコーポレーテッド | Pressure-actuated piston and cylinder unit used for dies |
| JP4746241B2 (en) * | 1999-12-21 | 2011-08-10 | ヴァリ−フォーム インコーポレーテッド | Pressure-operated piston and cylinder unit used for dies |
| KR101011723B1 (en) | 2008-11-06 | 2011-01-31 | 볼보 컨스트럭션 이큅먼트 에이비 | anti-relaxation apparatus of piston of hydraulic and pneumatic cylinder |
| CN102756489A (en) * | 2011-04-25 | 2012-10-31 | 许宏 | Electrically driven hydraulic press |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3888782B2 (en) | 2007-03-07 |
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