JPH03140656A - Feed screw driving gearbox - Google Patents
Feed screw driving gearboxInfo
- Publication number
- JPH03140656A JPH03140656A JP27689289A JP27689289A JPH03140656A JP H03140656 A JPH03140656 A JP H03140656A JP 27689289 A JP27689289 A JP 27689289A JP 27689289 A JP27689289 A JP 27689289A JP H03140656 A JPH03140656 A JP H03140656A
- Authority
- JP
- Japan
- Prior art keywords
- bevel gear
- driven
- shaft
- drive
- driving shaft
- 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
- 210000000078 claw Anatomy 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 235000011274 Benincasa cerifera Nutrition 0.000 description 1
- 235000015001 Cucumis melo var inodorus Nutrition 0.000 description 1
- 240000002495 Cucumis melo var. inodorus Species 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
Landscapes
- Gear Transmission (AREA)
- Transmission Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、例えば工場等においてクレーン下に取り付
けられる吊り具の爪体を開閉する駆動源として用いられ
る送りねじ駆動ギヤボックスに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a feed screw drive gear box used as a drive source for opening and closing the claws of a hanging tool installed under a crane in a factory or the like.
従来、ギヤを用いた駆動機構としてマイクギヤボックス
やベベルギヤボックスが市販されている。Conventionally, microphone gear boxes and bevel gear boxes have been commercially available as drive mechanisms using gears.
これらのギヤボックスは、通常、従動軸が箱状のハウジ
ングを貫通した状聾で駆動軸と直交して支持されており
、ギヤボックス内のギヤの噛合によって、駆動軸の回転
出力を方向を変えて伝達するようにしている。These gearboxes usually have a driven shaft that passes through a box-shaped housing and is supported perpendicular to the drive shaft, and the direction of the rotational output of the drive shaft is changed by the meshing of the gears in the gearbox. I am trying to convey this information using the following methods.
ところで、クレーンの先端に取り付けて用いろ吊り具な
どにおいて、爪を水平方向に直線的に開閉するようにし
たものが考えられる。このような場合に上記のように構
成された従来のギヤボックスを適用しようとすると、従
動軸が貫通しているために２つの爪を逆方向へ開閉する
ことしかできない。また、その場合に従動軸の両端に送
りねじを逆向きに形成する必要かあ（ので、送りナツト
側も２つの形式とすることが必要で、部品の種類が増え
て管理が複雑になるという課題も有った。By the way, it is conceivable to use a hanging device that is attached to the tip of a crane and has claws that open and close linearly in the horizontal direction. If a conventional gearbox configured as described above is applied to such a case, the driven shaft passes through the gearbox, so that the two claws can only be opened and closed in opposite directions. Also, in that case, would it be necessary to form the feed screws in opposite directions at both ends of the driven shaft? There were also challenges.
本発明はこのような事情に鑑みてなされたもので、ハウ
ジング内に一端を挿入して回動自在に支持された駆動軸
及び複数の従動軸を設け、上記駆動軸の内端に駆動ベベ
ルギヤを取り付け、上記各従動軸を駆動軸に直交する面
内において放射状に配置し、従動軸の外端にねじを形成
するとともに内端に上記駆動ベベルギヤに噛合する従動
ベベルギヤを取り付けた構成としたものである。The present invention has been made in view of the above circumstances, and includes a drive shaft and a plurality of driven shafts, one end of which is inserted into a housing and rotatably supported, and a drive bevel gear at the inner end of the drive shaft. Each of the driven shafts is arranged radially in a plane orthogonal to the drive shaft, a thread is formed at the outer end of the driven shaft, and a driven bevel gear that meshes with the drive bevel gear is attached to the inner end. be.
本発明による送りねじ駆動ギヤボックスは以上のように
構成されているので、駆動軸が回転すると、この駆動軸
と一体として結合されている駆動ベベルギヤが回転し、
このベベルギヤに噛み合っている複数の従動ベベルギヤ
が回転する。この従動ベベルギヤの回転によりこれらと
一体に結合された従動軸がそれぞれ回転する。Since the feed screw drive gearbox according to the present invention is configured as described above, when the drive shaft rotates, the drive bevel gear integrally connected to the drive shaft rotates.
A plurality of driven bevel gears meshing with this bevel gear rotate. The rotation of the driven bevel gears rotates the driven shafts integrally connected thereto.
複数の従動ベベルギヤは、それぞれ独立して駆動ベベル
ギヤと噛み合っているので、従動軸の他の一端に加工さ
れたねじを同じ向き、例えば全てのねじを右ねじとする
と、このねじに組み合わされた物品は駆動軸の回転によ
り、その駆動軸を中心として全て対称的に移動する。す
なわち、全てか中心から離れていくかまたは中心に向か
う。The plurality of driven bevel gears are each independently engaged with the drive bevel gear, so if the screws machined on the other end of the driven shaft are in the same direction, for example, all the screws are right-handed, the article assembled to this screw will are all moved symmetrically around the drive shaft due to the rotation of the drive shaft. That is, everything is moving away from the center or toward the center.
以下、この発明による一実施例を添付した図面に基づい
て詳細に説明する。Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.
第１図及び第２図において１はほぼ立方体箱状のハウジ
ングで、上面及び４つの側面が開口しており、上面開口
部に筒状の駆動軸支持部材２が、側面開口部に従動軸支
持部材３がそれぞれ取り付けられている。そしてこれら
の軸支持部材２．３に、それぞれ、ベアリング４を介し
て回動自在に駆動軸５及び従動軸６・・・が挿通しであ
る。駆動軸５の内端には駆動軸５と一体に駆動へベルギ
ヤ７が取り付けてあり、他の一端にはカップリンク（図
示略）を介して動力源が接続されている。駆動軸支持部
材２の上端はカバー８で覆われ、駆動軸５の周囲には軸
シール９が設けてあり、ハウジングｌ内の潤滑油が外部
に漏洩するのを防いでいる。In FIGS. 1 and 2, reference numeral 1 denotes a nearly cubic box-shaped housing with an open top surface and four side surfaces. A cylindrical drive shaft support member 2 is provided in the top surface opening, and a driven shaft is supported in the side surface opening. Members 3 are attached respectively. A drive shaft 5 and a driven shaft 6 are rotatably inserted through these shaft support members 2.3 via bearings 4, respectively. A driving bell gear 7 is attached to the inner end of the drive shaft 5 integrally with the drive shaft 5, and a power source is connected to the other end via a cup link (not shown). The upper end of the drive shaft support member 2 is covered with a cover 8, and a shaft seal 9 is provided around the drive shaft 5 to prevent lubricating oil in the housing l from leaking to the outside.
従動軸６の内端には従動ベベルギヤＩＯがそれぞれ取り
付けてあり、これらの従動ベベルギヤ１０はそれぞれ上
述した駆動ベベルギヤ７に噛み合って連動するようにな
っている。従動軸支持部材３の外端面はカバー１１で覆
われ、従動軸６の周囲は軸ンール１２で覆れている。従
動軸６の外端にはそれぞれ同じ向きにねじＩ３が加工さ
れていて、クレーン用吊り具の爪（図示略）に固定され
たナツト（図示略）に螺合されている。この爪は、ガイ
ド機構により、従動軸６の軸線方向に摺動可能に支持さ
れており、従動軸６とナツトとが送りねじを構成してい
る。A driven bevel gear IO is attached to the inner end of the driven shaft 6, and each of these driven bevel gears 10 is adapted to mesh with and interlock with the drive bevel gear 7 described above. The outer end surface of the driven shaft support member 3 is covered with a cover 11, and the periphery of the driven shaft 6 is covered with a shaft knob 12. Screws I3 are machined in the same direction at the outer ends of the driven shafts 6, and are screwed into nuts (not shown) fixed to claws (not shown) of a crane hanging tool. This pawl is supported by a guide mechanism so as to be slidable in the axial direction of the driven shaft 6, and the driven shaft 6 and the nut constitute a feed screw.
上記のように構成された送りねじ駆動ギヤボックスにお
いて、駆動軸５を駆動源に接続し、駆動源をオンにする
と駆動軸５が回転し、この回転は駆動へベルギヤ７を介
して従動ベベルギヤＩＯ及び従動軸６に伝達される。こ
の従動軸６の回転は、それぞれが駆動軸５方向から見て
同一方向でありまた同一速度である。従動軸５の回転に
より、爪に固定されたナツトに軸方向への駆動力が作用
し、爪が駆動軸５を中心とする放射方向に移動し、爪の
下端で物品が把持されあるいは開放される。In the feed screw drive gear box configured as described above, when the drive shaft 5 is connected to the drive source and the drive source is turned on, the drive shaft 5 rotates, and this rotation is transferred to the drive via the bell gear 7 to the driven bevel gear IO. and is transmitted to the driven shaft 6. The driven shafts 6 rotate in the same direction and at the same speed when viewed from the direction of the drive shaft 5. The rotation of the driven shaft 5 causes a driving force in the axial direction to act on the nut fixed to the pawl, and the pawl moves in a radial direction around the drive shaft 5, so that the lower end of the pawl grips or releases the article. Ru.
このように、この送りねじ駆動ギヤボックスによれば冬
瓜が駆動軸５を中心として放射方向に対称的に移動する
ので、物品の形状にかかわらず安定的に把持がなされる
。In this way, according to this feed screw drive gear box, the winter melon moves symmetrically in the radial direction about the drive shaft 5, so that it can be stably gripped regardless of the shape of the object.
なお、第３図はこの発明の他の実施例を示すもので、従
動軸６及び従動ベベルギヤＩＯをそれぞれ３個とした例
である。この実施例ら上述したものと同様の作用効果を
有することは言うまでもない。Note that FIG. 3 shows another embodiment of the present invention, in which the number of driven shafts 6 and number of driven bevel gears IO are three each. It goes without saying that this embodiment has the same effects as those described above.
以上詳細に説明したように、本発明による送りねじ駆動
ギヤボックスは、ハウジング内に一端を挿入して回動自
在に支持された駆動軸及び複数の従動軸を設け、上記駆
動軸の内端に駆動ベベルギヤを取り付け、上記各従動軸
を駆動軸に直交する面内において放射状に配置し、従動
軸の外端にねじを形成するとともに内端に上記駆動ベベ
ルギヤに噛合する従動ベベルギヤを取り付けた構成とし
等しく分配することができ、例えばクレーン用の吊り具
の駆動機構に用いた場合、簡単な構成により安定した把
持機能をもたらすことができるという優れた効果を奏す
るものである。As described above in detail, the feed screw drive gearbox according to the present invention includes a drive shaft and a plurality of driven shafts, one end of which is inserted into a housing and rotatably supported, and a plurality of driven shafts that are connected to the inner end of the drive shaft. A drive bevel gear is attached, each of the driven shafts is arranged radially in a plane orthogonal to the drive shaft, a thread is formed at the outer end of the driven shaft, and a driven bevel gear that meshes with the drive bevel gear is attached to the inner end. It can be equally distributed, and when used, for example, in a drive mechanism for a hanging device for a crane, it has the excellent effect of providing a stable gripping function with a simple configuration.
第１図は本発明の一実施例の送りねじ駆動ギヤボックス
の縦断面図、第２図は第１図の■−■矢視図、第３図は
この発明の他の実施例の送りねじギヤボックスの平面断
面図である。
ｌ・・・・・・ハウジング、５・・・・・・駆動軸、６
・・従動軸、７・・・・駆動ベベルギヤ、１０・・・従
動ベベルギヤ、１３・・・送りねじ。FIG. 1 is a longitudinal sectional view of a feed screw drive gearbox according to an embodiment of the present invention, FIG. 2 is a view taken along the ■-■ arrow in FIG. 1, and FIG. 3 is a feed screw according to another embodiment of the present invention. FIG. 3 is a plan sectional view of the gearbox. l...Housing, 5...Drive shaft, 6
... Driven shaft, 7... Drive bevel gear, 10... Driven bevel gear, 13... Feed screw.
Claims (1)
動軸及び複数の従動軸を備え、 上記駆動軸の内端には駆動ベベルギヤが取り付けられ、 上記各従動軸は駆動軸に直交する面内において駆動軸に
対して放射状に配置され、 従動軸の外端にはねじが形成されるとともに内端には上
記駆動ベベルギヤに噛合する従動ベベルギヤが取り付け
られていることを特徴とする送りねじ駆動ギヤボックス
。[Scope of Claims] A drive shaft and a plurality of driven shafts are rotatably supported with one end inserted into a housing, a drive bevel gear is attached to an inner end of the drive shaft, and each of the driven shafts is It is arranged radially with respect to the drive shaft in a plane orthogonal to the drive shaft, and the outer end of the driven shaft is threaded, and the inner end is equipped with a driven bevel gear that meshes with the drive bevel gear. Features a feed screw drive gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27689289A JPH03140656A (en) | 1989-10-24 | 1989-10-24 | Feed screw driving gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27689289A JPH03140656A (en) | 1989-10-24 | 1989-10-24 | Feed screw driving gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03140656A true JPH03140656A (en) | 1991-06-14 |
Family
ID=17575852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27689289A Pending JPH03140656A (en) | 1989-10-24 | 1989-10-24 | Feed screw driving gearbox |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03140656A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1619418A2 (en) | 2004-07-23 | 2006-01-25 | Firma AS-Antriebstechnik und Service GmbH | Gear unit with an adapter plug |
| JP2015227703A (en) * | 2014-06-02 | 2015-12-17 | 株式会社ツバキＥ＆Ｍ | Gear device and electric lifting device including the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5743052A (en) * | 1980-08-28 | 1982-03-10 | Shinko Seisakusho:Kk | Bevel gear transmission unit |
| JPS6434894A (en) * | 1987-07-28 | 1989-02-06 | Murata Machinery Ltd | Article shifter |
-
1989
- 1989-10-24 JP JP27689289A patent/JPH03140656A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5743052A (en) * | 1980-08-28 | 1982-03-10 | Shinko Seisakusho:Kk | Bevel gear transmission unit |
| JPS6434894A (en) * | 1987-07-28 | 1989-02-06 | Murata Machinery Ltd | Article shifter |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1619418A2 (en) | 2004-07-23 | 2006-01-25 | Firma AS-Antriebstechnik und Service GmbH | Gear unit with an adapter plug |
| EP1619418A3 (en) * | 2004-07-23 | 2008-04-16 | Firma AS-Antriebstechnik und Service GmbH | Gear unit with an adapter plug |
| JP2015227703A (en) * | 2014-06-02 | 2015-12-17 | 株式会社ツバキＥ＆Ｍ | Gear device and electric lifting device including the same |
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