JPS60188655A - Roller screw jack driven by worm and worm wheel - Google Patents
Roller screw jack driven by worm and worm wheelInfo
- Publication number
- JPS60188655A JPS60188655A JP4494484A JP4494484A JPS60188655A JP S60188655 A JPS60188655 A JP S60188655A JP 4494484 A JP4494484 A JP 4494484A JP 4494484 A JP4494484 A JP 4494484A JP S60188655 A JPS60188655 A JP S60188655A
- Authority
- JP
- Japan
- Prior art keywords
- worm
- roller
- screw
- worm wheel
- roller screw
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2247—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with rollers
- F16H25/2252—Planetary rollers between nut and screw
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
- F16H1/163—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel with balls between the co-operating parts
Abstract
Description
【発明の詳細な説明】
本発明は、従来のウオームギヤジヤツキにローラねじを
使用してその効率をよくしたものに係る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a conventional worm gear jack that uses a roller screw to improve its efficiency.
本来、ウオームギヤジヤツキは重量物をその扛上位置に
おいて長時間保持するのに適するが、油圧ジヤツキに比
してその機械的効率が著しく悪く、このため同じ扛上量
では、ウオームギヤジヤツキは油圧ジヤツキに比して大
入力を必要とする。これは、ウオームとウオームホイー
ル及びスクリュー杆とその螺合支承部等において摩擦が
大きいためである。Worm gear jacks are originally suitable for holding heavy objects in the lifting position for long periods of time, but their mechanical efficiency is significantly lower than that of hydraulic jacks.For this reason, for the same lifting amount, worm gear jacks are Requires greater input than jack. This is because friction is large between the worm and the worm wheel, the screw rod and its threaded support, and the like.
このため、第１図に示されるローラねじ軸受の機能を利
用して、この軸受でスクリュー杆を螺合支持するととも
に、さらにローラねじ軸受の衛星ロールに類似するロー
ラねじの数個をウオームとし、これにウオームホイール
を螺合させることにより、スクリュー杆とウオームホイ
ール及びウオームとウオームホイール間の摩擦を滑り摩
擦から転がり摩擦に転じ、もって機械的損失を著しく減
小したのが本発明である。Therefore, by utilizing the function of the roller screw bearing shown in FIG. 1, the screw rod is screwed and supported by this bearing, and several roller screws similar to the satellite rolls of the roller screw bearing are used as worms. By screwing the worm wheel into this, the friction between the screw rod and the worm wheel and between the worm and the worm wheel is changed from sliding friction to rolling friction, thereby significantly reducing mechanical loss.
図について詳細に説明すると、本体■が蓋体■によって
封じられる空間には、その両端をベアリング■、■を介
して支承されたウオームホイール■を配し、その軸心を
貫通するスクリーー杆■は本体■、蓋体■より突出する
。ウオームホイール■には第１図に示されるローラねじ
軸受が組込甘れ、その外筒ナツトＡはキー■を介してウ
オームホイール■に係止一体とされ、数個の衛星ロール
Ｂ［それぞれスクリュー杆■に螺合することとなる。ウ
オームホイール■にはその軸心に直角に配したローラね
じ■（前記衛星ロールＢに類似しており、図では８個と
される）のうち数個（図では２個）を螺合させ、該ロー
ラねじ■に螺合するスクリーー杆■をベアリング［相］
、■で支承し、その本体■から突出した一端０を駆動側
とする。To explain the figure in detail, in the space where the main body ■ is sealed by the lid body ■, there is a worm wheel ■ supported at both ends through bearings ■, ■, and a screen rod passing through its axis is It protrudes from the main body ■ and the lid body ■. A roller screw bearing shown in Fig. 1 is installed in the worm wheel ■, and its outer cylinder nut A is fixed to the worm wheel ■ through a key ■, and several satellite rolls B [each with a screw It will be screwed onto the rod. Several (two in the figure) of the roller screws (similar to the satellite roll B, numbered eight in the figure) arranged perpendicularly to the axis of the worm wheel ■ are screwed into the worm wheel. The screen rod that is screwed onto the roller screw is a bearing.
, ■, and one end 0 protruding from the main body ■ is the drive side.
ウオームホイール■は第１図に示す外筒ナツトＢをその
内外周壁を翻転して内外逆の関係にしたものであり、従
来のウオームホイールがそのねじ山断面を台形状とする
のに対し、ウオームホイール■では山形状とすることに
なる（第４図）。この場合において、ローラねじ■はそ
の向きをスクリュー杆■に対して反対向き、すなわち、
スクリーー杆■が右ねじてあれはローラねじ■は各左ね
じとする。しかして、ローラねじ■のねし両端部は、そ
れぞれその外周に等分に軸方向に平行に数個の溝が刻設
されることによってビニオンを形成し、これがスクリュ
ー杆■のスクリュ一部両側に配した歯車■と噛合するの
でスクＩＪ、−杆■とローラねじ■の間には滑ることな
く転がり接触が行われる。捷た、スクリーー杆■とロー
ラねじ■のねじ進み量を同じくするようなねじ角度とす
ることによって、ローラねじ■は左右にズレることなく
スクリーー杆■の周囲を自転しながら公転する。The worm wheel ■ is an outer cylinder nut B shown in Fig. 1 whose inner and outer circumferential walls are reversed so that the inner and outer walls are reversed.While the conventional worm wheel has a trapezoidal thread cross section, The worm wheel ■ will have a mountain shape (Figure 4). In this case, the roller screw ■ is oriented in the opposite direction to the screw rod ■, that is,
If the screen rod ■ has a right-hand thread, each roller screw ■ must have a left-hand thread. In this way, both ends of the screw of the roller screw ■ are formed with several grooves equally spaced parallel to the axial direction on the outer periphery, forming a binion. Since it meshes with the gear (■) arranged on the screw IJ, there is rolling contact between the -rod (■) and the roller screw (■) without slipping. By setting the screw angle so that the thread advance amount of the twisted scree rod (■) and the roller screw (2) are the same, the roller screw (2) revolves around the scree rod (2) while rotating on its own axis without shifting from side to side.
他方、ウオームホイール■はローラねじ■と螺合してＦ
面上を転がるので、ねじ作用によりホイール■は回動す
る。なお、リング［相］はローラねじ■をスクリュー杆
■の周囲に配置し支持するための支持板である。On the other hand, the worm wheel ■ is screwed together with the roller screw ■
As it rolls on the surface, the wheel ■ rotates due to the screw action. Note that the ring [phase] is a support plate for disposing and supporting the roller screw (■) around the screw rod (■).
使用に際しては、スクリーー杆■の駆動側＠に原動機（
図示せず）を連結し、スクリーー杆■の先端に螺合した
ヘッド（図示せず）を介して荷重を載置し、その昇降を
行うことになる。When in use, place the prime mover (
(not shown), and a load is placed through a head (not shown) screwed onto the tip of the scree rod, and the load is raised and lowered.
本発明は前記構成、作用により、スクリュー杆に対して
はローラねじ軸受自体が軸方向荷重を、その衛星ロール
の多数の接触点により分担し、ウオームホイールに対し
てはウオーム体の数個のローラねじがその負荷による摩
擦を著しく減じることを特徴とするウオーム体とウオー
ムホイールで駆動するローラねしジヤフキである。With the above-described structure and operation, the present invention shares the axial load on the screw rod by the roller screw bearing itself through a large number of contact points of its satellite rolls, and on the worm wheel, the axial load is shared by the rollers of the worm body. This is a roller screw threader driven by a worm body and a worm wheel, which is characterized in that the friction caused by the load on the screw is significantly reduced.
第１図はローラねじ軸受の内部構造を、第２．３図は本
発明に係る実施例の側面及び平面図の内部を切断して、
第４．５図はその詳細をそれぞれ示す。
特許出願人
株式会社 大阪ジヤツキ製作所
寥 １１ｆＪ
多４巴
１５ １３ ８ ｑ１３ １５
算５ 図
特許庁長官 殿
■、事件の表示
昭和５９年 特許願第４４９４４号
２ 発明の名称
フオーム体とフオームホイールで駆動するローラねじジ
ヤツキ
３ 補正をする者
事件との関係 特許出願人 （２・
居 所 大阪市平野区加美南４丁目１番４１号［相］５
４７電０６−（７９１）−１１２５４補正命令の日付
昭和５９年５月２９日（発送日）
５ 補正の対象
「明細書の図面の簡単な説明の欄」及び「図面」補正の
内容
明細書の第５頁第１４行の「切断して、」以下２０字を
削除して、「第２図は第３図のイーイ断血ｆこおいて、
第８図は第２図のローロ断面において切断して、第４図
は第５図の二−二断面に８いて、第５図は第４図のハー
バ断面において切断してその詳細をそれぞれ示す。」の
８７字を加入する。
図面の浄書（内容に変更なし）
第２図の「（イーイ断面）」、第３図の「（ローロ断面
）」、第４図の「に−二断面〕」、第５図の「（ハーバ
断面）」の記載をそれぞれ削除する。Figure 1 shows the internal structure of the roller screw bearing, and Figures 2 and 3 are side and plan views of the embodiment according to the present invention.
Figure 4.5 shows the details. Patent Applicant Co., Ltd. Osaka Jatsuki Manufacturing Co., Ltd. 11fJ Ta4 Tomoe 15 13 8 q13 15 Arithmetic 5 Figure Commissioner of the Patent Office ■, Display of the case 1982 Patent Application No. 44944 2 Name of the invention Driven by a form body and a form wheel Roller Screw Jacking 3 Relationship with the Amendment Case Patent Applicant (2. Address: 4-1-41 Kaminami, Hirano-ku, Osaka [Phase] 5)
47 Telephone 06-(791)-11254 Date of amendment order May 29, 1980 (shipment date) 5 Target of amendment: ``Brief explanation column of drawings in the specification'' and ``Drawings'' Contents of the amendment On page 5, line 14, delete the 20 characters following ``cut,'' and write ``Figure 2 is the same as Figure 3.
Fig. 8 is cut at the Rolo cross section in Fig. 2, Fig. 4 is cut at the 2-2 cross section in Fig. 5, and Fig. 5 is cut at the Haber cross section in Fig. 4 to show details. . ” Add 87 characters. Engraving of the drawings (no changes in content) Figure 2: “(Eii cross section)”, Figure 3: “(Roro cross section)”, Figure 4: “Ni-2 cross section”, Figure 5: “(Harbor cross section)” (Cross section)" shall be deleted.
Claims (2)
合するウオーム体とウオームホイール、該ウオームホイ
ール及び前記本体と蓋体の各軸心を貫通するスクリュー
杆とからなるウオームギヤジヤツキにおいて、前記ウオ
ーム体をスクリュー杆とこれを囲繞して螺合する数個の
ローラねじ、さらにこれらのローラねじ各両端に刻設さ
れた歯に噛合する各１個の歯車、該歯車の外側において
前記ローラねじを支持する支持板とからなる構成とした
ことを特徴とするウオーム体とウオームホイールで駆動
するローラねじジヤツキ。(1) In a worm gear jack consisting of a main body and its lid, a worm body and a worm wheel built into these and screwed together, and a screw rod passing through each axis of the worm wheel and the main body and the lid. , several roller screws that surround and screw together the worm body and the screw rod; further, one gear each meshing with teeth carved on both ends of each of these roller screws; A roller screw jack driven by a worm body and a worm wheel, characterized by having a structure consisting of a support plate that supports a roller screw.
ラねじ軸受を配し、該ローラねじ軸受の数個の衛星ロー
ルをスクリーー杆に螺合させたことを特徴とする特許請
求範囲第１項記載のウオーム体とウオームホイールで駆
動するローラねじジヤツキ。(2) A roller screw bearing is disposed integrally with the worm wheel axis, and several satellite rolls of the roller screw bearing are screwed into the scree rod. A roller screw jack driven by the described worm body and worm wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4494484A JPS60188655A (en) | 1984-03-08 | 1984-03-08 | Roller screw jack driven by worm and worm wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4494484A JPS60188655A (en) | 1984-03-08 | 1984-03-08 | Roller screw jack driven by worm and worm wheel |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59103094A Division JPS60188641A (en) | 1984-05-21 | 1984-05-21 | Roller worm speed reduction gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60188655A true JPS60188655A (en) | 1985-09-26 |
| JPH0451698B2 JPH0451698B2 (en) | 1992-08-19 |
Family
ID=12705591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4494484A Granted JPS60188655A (en) | 1984-03-08 | 1984-03-08 | Roller screw jack driven by worm and worm wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60188655A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8082818B2 (en) | 2005-08-23 | 2011-12-27 | Toyota Jidosha Kabushiki Kaisha | Planetary device for conversion between rotary motion and linear motion |
| WO2012072389A1 (en) * | 2010-11-30 | 2012-06-07 | Schaeffler Technologies AG & Co. KG | Car jack |
| US8986159B2 (en) | 2012-01-26 | 2015-03-24 | Goodrich Actuation Systems Limited | Nose-wheel steering actuator |
-
1984
- 1984-03-08 JP JP4494484A patent/JPS60188655A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8082818B2 (en) | 2005-08-23 | 2011-12-27 | Toyota Jidosha Kabushiki Kaisha | Planetary device for conversion between rotary motion and linear motion |
| WO2012072389A1 (en) * | 2010-11-30 | 2012-06-07 | Schaeffler Technologies AG & Co. KG | Car jack |
| US8986159B2 (en) | 2012-01-26 | 2015-03-24 | Goodrich Actuation Systems Limited | Nose-wheel steering actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0451698B2 (en) | 1992-08-19 |
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