JPH089478Y2 - Electric cylinder device - Google Patents

Electric cylinder device

Info

Publication number
JPH089478Y2
JPH089478Y2 JP1989083472U JP8347289U JPH089478Y2 JP H089478 Y2 JPH089478 Y2 JP H089478Y2 JP 1989083472 U JP1989083472 U JP 1989083472U JP 8347289 U JP8347289 U JP 8347289U JP H089478 Y2 JPH089478 Y2 JP H089478Y2
Authority
JP
Japan
Prior art keywords
rod
electric motor
special electric
output shaft
guide bar
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 - Fee Related
Application number
JP1989083472U
Other languages
Japanese (ja)
Other versions
JPH0322154U (en
Inventor
邦昌 木村
義信 岡田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sintokogio Ltd
Original Assignee
Sintokogio Ltd
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 by Sintokogio Ltd filed Critical Sintokogio Ltd
Priority to JP1989083472U priority Critical patent/JPH089478Y2/en
Publication of JPH0322154U publication Critical patent/JPH0322154U/ja
Application granted granted Critical
Publication of JPH089478Y2 publication Critical patent/JPH089478Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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  • Transmission Devices (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は、電動機の出力軸の回転運動を、いわゆるね
じ機構により直線運動に変換するように構成した電動シ
リンダ装置の改良に関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an improvement of an electric cylinder device configured to convert a rotational movement of an output shaft of an electric motor into a linear movement by a so-called screw mechanism.

(従来の技術) 本出願人は先に電動シリンダ装置の改良として実開平
1-86457号公報で開示されるものを提供している。
(Prior Art) The applicant of the present invention has previously proposed an actual improvement as an improvement of the electric cylinder device
1-86457 is provided.

この電動シリンダ装置は、第2図に示すように、一方
へ長く延びるとともにねじを刻設した出力軸(21)を有
する特殊電動機(22)の外側面に、前記出力軸(21)の
ねじ部(21a)を包囲するようにしてシリンダ本体(2
3)を固着し、このシリンダ本体(23)内には、前記ね
じ部(21a)と螺合する特殊ナット(24)を摺動自在に
嵌合し、この特殊ナット(24)には、前記出力軸(21)
を包囲する円筒状の出力ロッド(25)の一端を固着し
て、特殊電動機(21)の正逆回転により出力ロッド(2
5)を伸縮させるようにしたものである。
As shown in FIG. 2, this electric cylinder device has a screw portion of the output shaft (21) on the outer surface of a special electric motor (22) that extends to one side and has an output shaft (21) engraved with a screw. Cylinder body (2
3) is fixed, and a special nut (24) screwed with the screw part (21a) is slidably fitted in the cylinder body (23). Output shaft (21)
By fixing one end of a cylindrical output rod (25) surrounding the output rod (2) by rotating the special electric motor (21) forward and backward.
5) is made to expand and contract.

(考案が解決しようとする課題) ところで、上記の電動シリンダ装置では、いわゆるピ
ストンロッドに相当する部分が二重構造になっているた
め、構造が複雑な上に重くかつ不合理であり、しかもシ
リンダ本体(23)の先端に設けた支持部材(23a)と出
力ロッド(25)との摺動抵抗が大きく、出力効率が低下
するなどの問題があった。
(Problems to be solved by the invention) By the way, in the above electric cylinder device, the portion corresponding to a so-called piston rod has a double structure, so that the structure is complicated and heavy and irrational. There has been a problem that the sliding resistance between the support member (23a) provided at the tip of the main body (23) and the output rod (25) is large and the output efficiency is reduced.

本考案は上記の問題を解消するためになされたもので
ある。
The present invention has been made to solve the above problems.

(課題を解決するための手段) 上記目的を達成するために本考案の電動シリンダ装置
においては、電動機の出力軸を中空状にするとともにそ
の内面に雌ねじを設け、該出力軸に、雄ねじを刻設した
ロッドを貫通させて螺合し、前記電動機の一側面に、先
端を閉鎖した筒部材をロッドを包囲するようにして固着
し、該筒部材内にロッドと平行するガイドバーを設け、
前記ロッドの筒部材側一端に、前記ガイドバーを摺動自
在に貫通させた摺動部材を、筒部材に摺動可能に嵌合さ
せて固着し、さらに前記ガイドバーにおける前記摺動部
材の両側位置にコイルばねを環装したものである。
(Means for Solving the Problems) In order to achieve the above object, in the electric cylinder device of the present invention, the output shaft of the electric motor is made hollow and a female screw is provided on the inner surface thereof, and the output shaft is engraved with a male screw. The rod provided is penetrated and screwed, a tubular member having a closed tip is fixed to one side surface of the electric motor so as to surround the rod, and a guide bar parallel to the rod is provided in the tubular member.
A sliding member, which slidably penetrates the guide bar, is slidably fitted and fixed to the cylindrical member at one end of the rod on the cylindrical member side, and further, both sides of the sliding member in the guide bar are fixed. A coil spring is mounted at the position.

(作用) 次にこのように構成された装置の作用について説明す
る。特殊電動機の出力軸を正転または逆転させると、ロ
ッドは、ガイドバーおよび摺動部材を介して回転を防止
されて筒部材の反対側において伸長または収縮する。そ
して、ロッドの行程端では摺動部材がコイルばねに受け
られて、ロッドの行程端時の衝撃が吸収緩和される。ま
た、特にロッドの伸長時にロッドにモーメントが発生し
た時、このモーメントによる力は、摺動部材の筒部材へ
の当接によって受けられる。
(Operation) Next, the operation of the apparatus configured as described above will be described. When the output shaft of the special electric motor is normally or reversely rotated, the rod is prevented from rotating via the guide bar and the sliding member and extends or contracts on the opposite side of the tubular member. At the stroke end of the rod, the sliding member is received by the coil spring, and the shock at the stroke end of the rod is absorbed and relaxed. Further, particularly when a moment is generated in the rod when the rod is extended, the force due to this moment is received by the contact of the sliding member with the tubular member.

(実施例) 実施例について第1図を参照して説明すると、図中
(1)は左右方向へ指向する中空状の出力軸(2)を備
えた特殊電動機で、該特殊電動機(1)の出力軸(2)
内の左側にはナット(3)が出力軸(2)と同心して嵌
着されている。そして、該ナット(3)には雄ねじを刻
設したロッド(4)が出力軸(2)を貫通して螺合され
ている。また、特殊電動機(1)の右側面には、先端を
蓋(5a)で閉鎖した筒部材(5)が、ロッド(4)を包
囲するとともにリップ(4)と同心して固着され、該筒
部材(5)の蓋(5a)と特殊電動機(1)の右側面との
間にはロッド(4)と平行するガイドバー(6)が架設
されている。また前記ロッド(4)の右端には、ガイド
バー(6)を摺動自在に貫通させた摺動部材(7)が前
記筒部材(5)に摺動可能に嵌合されて固着され、ガイ
ドバー(6)における摺動部材(7)の両側位置にはコ
イルばね(8)、(9)がそれぞれ環装されている。な
お、図中(10)は特殊電動機(1)の左側から出るロッ
ド(4)を粉塵から保護する蛇腹、(11)は軸受であ
る。
(Embodiment) An embodiment will be described with reference to FIG. 1. In the figure, (1) is a special electric motor having a hollow output shaft (2) oriented in the left-right direction. Output shaft (2)
On the left side of the inside, a nut (3) is fitted concentrically with the output shaft (2). A rod (4) engraved with a male screw is screwed into the nut (3) so as to pass through the output shaft (2). On the right side surface of the special electric motor (1), a tubular member (5) whose tip is closed by a lid (5a) is fixed around the rod (4) and concentrically with the lip (4). A guide bar (6) parallel to the rod (4) is installed between the lid (5a) of (5) and the right side surface of the special electric motor (1). A sliding member (7) slidably penetrating a guide bar (6) is slidably fitted and fixed to the tubular member (5) at the right end of the rod (4), Coil springs (8) and (9) are attached to both sides of the sliding member (7) in the bar (6). In the figure, (10) is a bellows that protects the rod (4) from the left side of the special electric motor (1) from dust, and (11) is a bearing.

このように構成されたものは、特殊電動機(1)を駆
動して出力軸(2)およびナット(3)を正転または逆
転させると、ロッド(4)は、ガイドバー(6)および
摺動部材(7)により回転を防止されて、特殊電動機
(1)の左側面から伸長または収縮し、そして、ロッド
(4)の行程端では、摺動部材(7)がコイルばね
(8)また(9)により衝撃を吸収緩和された後、特殊
電動機(1)の右側面または筒部材(5)の蓋(5a)に
当接する。
With such a structure, when the special electric motor (1) is driven to rotate the output shaft (2) and the nut (3) in the forward or reverse direction, the rod (4) slides on the guide bar (6) and slides. It is prevented from rotating by the member (7) and extends or contracts from the left side surface of the special electric motor (1), and at the stroke end of the rod (4), the sliding member (7) causes the coil spring (8) or ( After the shock is absorbed and alleviated by 9), it contacts the right side surface of the special electric motor (1) or the lid (5a) of the tubular member (5).

なお、上記の実施例では出力軸(2)は、ナット
(3)をもって内面にねじを構成してあるが、出力軸
(2)の内面に直接雄ねじを刻設しても同様の作用効果
が得られる。
In the above embodiment, the output shaft (2) has a nut (3) and a screw formed on the inner surface. However, even if a male screw is directly engraved on the inner surface of the output shaft (2), the same effect can be obtained. can get.

(考案の効果) 以上の説明からも明らかなように本考案は、特殊電動
機の出力軸を中空状にするとともにその内面に雌ねじを
設け、さらに当該出力軸に、雄ねじを設けたロッドを貫
通螺合したから、いわゆるピストンロッド(ロッド)を
二重構造にする必要が全くなくなり、構造が簡単になる
とともに従来の電動シリンダ装置と比較してロッドの出
力が増大する。加えて、摺動部材をコイルばねを介して
特殊電動機の側面または筒部材の蓋に当接させるように
したから、ロッドの行程端時の衝撃を吸収緩和すること
ができるなどの優れた実用的効果を奏する。
(Effect of the Invention) As is apparent from the above description, according to the present invention, the output shaft of the special electric motor is made hollow, the inner surface of which is provided with a female screw, and the output shaft is provided with a rod having a male screw. Since they are combined, there is no need to form a so-called piston rod (rod) in a double structure, the structure is simple, and the output of the rod is increased as compared with the conventional electric cylinder device. In addition, since the sliding member is brought into contact with the side surface of the special electric motor or the lid of the tubular member via the coil spring, it is possible to absorb and reduce the shock at the end of the stroke of the rod. Produce an effect.

【図面の簡単な説明】[Brief description of drawings]

第1図は本考案の一実施例を示す一部断面正面図、第2
図は従来技術の一部断面正面図である。 (1):特殊電動機 (2):出力軸 (3):ナット (4):ロッド (5):筒部材 (6):ガイドバー (7):摺動部材 (8)、(9):コイルばね
FIG. 1 is a partially sectional front view showing an embodiment of the present invention, and FIG.
The figure is a partial sectional front view of the prior art. (1): Special electric motor (2): Output shaft (3): Nut (4): Rod (5): Cylindrical member (6): Guide bar (7): Sliding member (8), (9): Coil Spring

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】出力軸(2)を中空状にするとともにその
内面に雌ねじを設けて特殊電動機(1)を構成し、該特
殊電動機(1)の前記出力軸(2)内に、前記特殊電動
機(1)および前記出力軸(2)を貫通しかつ雄ねじを
刻設したロッド(4)を螺合し、前記特殊電動機(1)
の一外側面に、先端を蓋(5a)で閉鎖した筒部材(5)
を前記ロッド(4)における前記特殊電動機(1)の一
外側面から突出する一方側を包囲するようにして装着
し、該筒部材(5)の蓋(5a)と前記特殊電動機(1)
の一外側面との間に前記ロッド(4)と平行するガイド
バー(6)を架設し、前記ロッド(4)の前記筒部材
(5)側一端に、前記ガイドバー(6)を摺動自在に貫
通させた摺動部材(7)を、前記筒部材(5)内に摺動
可能に嵌合させて固着し、前記ガイドバー(6)におけ
る前記摺動部材(7)の両側位置にコイルばね(8、
9)をそれぞれ環装し、もって、前記特殊電動機(1)
の他外側面側から突出する前記ロッド(4)の他方側
を、当該ロッド(4)の出力側として構成したことを特
徴とする電動シリンダ装置。
1. A special electric motor (1) is constructed by forming a hollow output shaft (2) and providing an internal thread on its inner surface, and the special electric motor (1) is provided with the special shaft inside the output shaft (2). The special electric motor (1) is fitted with a rod (4) which penetrates the electric motor (1) and the output shaft (2) and is engraved with a male screw.
A cylindrical member (5) whose end is closed with a lid (5a) on one outer surface
Is mounted so as to surround one side of the rod (4) protruding from one outer side surface of the special electric motor (1), and the lid (5a) of the tubular member (5) and the special electric motor (1).
A guide bar (6) that is parallel to the rod (4) is installed between the guide bar (6) and one end surface of the rod (4), and the guide bar (6) slides on one end of the rod (4) on the tubular member (5) side. A sliding member (7) that freely penetrates is slidably fitted and fixed in the tubular member (5), and is provided at both sides of the sliding member (7) in the guide bar (6). Coil spring (8,
9) are individually mounted so that the special electric motor (1)
The electric cylinder device, wherein the other side of the rod (4) protruding from the other outer surface side is configured as an output side of the rod (4).
JP1989083472U 1989-07-14 1989-07-14 Electric cylinder device Expired - Fee Related JPH089478Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989083472U JPH089478Y2 (en) 1989-07-14 1989-07-14 Electric cylinder device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989083472U JPH089478Y2 (en) 1989-07-14 1989-07-14 Electric cylinder device

Publications (2)

Publication Number Publication Date
JPH0322154U JPH0322154U (en) 1991-03-06
JPH089478Y2 true JPH089478Y2 (en) 1996-03-21

Family

ID=31631174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989083472U Expired - Fee Related JPH089478Y2 (en) 1989-07-14 1989-07-14 Electric cylinder device

Country Status (1)

Country Link
JP (1) JPH089478Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI426685B (en) * 2008-04-17 2014-02-11 Smc Kk Electric actuator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5111604Y2 (en) * 1971-07-08 1976-03-29
JPS49129114A (en) * 1973-04-18 1974-12-11
JPS5423980U (en) * 1977-07-21 1979-02-16

Also Published As

Publication number Publication date
JPH0322154U (en) 1991-03-06

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