JPS60168936A - Power transmission structure utilizing steel ball - Google Patents
Power transmission structure utilizing steel ballInfo
- Publication number
- JPS60168936A JPS60168936A JP2232884A JP2232884A JPS60168936A JP S60168936 A JPS60168936 A JP S60168936A JP 2232884 A JP2232884 A JP 2232884A JP 2232884 A JP2232884 A JP 2232884A JP S60168936 A JPS60168936 A JP S60168936A
- Authority
- JP
- Japan
- Prior art keywords
- steel balls
- groove
- shaped body
- drum
- semicircular
- 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
- 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
- F16H1/166—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 members rotating around axes on the worm or worm-wheel
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は動力伝達構造に関するものである、その目的は
、動力の伝達を鋼球を利用したコロガリ摩擦で行うこと
により動力の損失を揚力押え非常に効率的かつ円滑な動
）Ｊ伝達が達ｂνできるという鋼球利用による動力伝達
構造を払１供することにある。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power transmission structure.The purpose of the present invention is to transmit power by rolling friction using steel balls, thereby suppressing power loss by lifting force and achieving a very efficient and smooth system. The objective is to provide a power transmission structure using steel balls that can achieve J transmission.
従来、ネジ歯車式の動力伝達機構が殆んどの機械装置に
使用されているが、とのＰ構ｄ滑り摩擦を利用するもの
であるため歯車の吻合面に発生する摩擦によって伝達動
力の損失が多く、かつ発熱等による態形ばケもあり決し
て満足すべきものではなかった。Conventionally, a screw gear type power transmission mechanism has been used in most mechanical devices, but since the P structure uses sliding friction between the gears, there is a loss of transmitted power due to the friction generated on the anastomotic surfaces of the gears. There were many cases, and the shape was discolored due to heat generation, etc., so it was by no means satisfactory.
例えばこの従来のネジ歯車式伝達機構のものは、ネジの
進み角が３度前後であって回転数が１ Ｏｎ Ｏｒ、Ｐ
、ｍ、程度のもので、その動力伝達効・率は７０〜７６
％位であり、従来より歯形の改良が加えられているもの
の、この方式は面接触であるため必然的に滑り摩擦を避
けることは不可能であり、この様な伝達損失を余儀無く
されているのである。For example, in this conventional screw gear type transmission mechanism, the advance angle of the screw is around 3 degrees and the number of rotations is 1 On Or, P
, m, and its power transmission efficiency/rate is 70 to 76
%, and although the tooth profile has been improved compared to the conventional method, since this method uses surface contact, it is inevitably impossible to avoid sliding friction, and such transmission loss is unavoidable. It is.
本発明者等は上記の如き従来の滑り摩擦による伝達動力
の損失を改善するべく鋭意研究を重ねた結果、ネジ歯車
と従動歯車間に鋼球を介在させてコロガリ摩擦によって
動力を伝達するという本発明に達したのである。The inventors of the present invention have conducted extensive research in order to improve the loss of transmitted power due to conventional sliding friction as described above, and as a result, they have proposed a method of transmitting power by rolling friction by interposing steel balls between a screw gear and a driven gear. The invention was achieved.
すなわち、駆動軸と共に回転する鼓形体を設け、該鼓形
体の外周に半円形ネジ溝を加工し、該半円形ネジ溝に沿
って移動し得る多数の１ｉＩＩＩ球を配列すると共に、
従動ホイールに設＆、円形溝との間に該鋼球群を噛合さ
せることによって該駆動軸の回転を該鋼球のコロガリ摩
擦により該従動ホイールに伝達し、かっ該鋼球群には脱
落防に手段と循庸手段とが備えられていることを特徴と
する鋼球制用による動力伝達構造を発明し、またこの鋼
球の脱落防１に手段としては鼓形体の下半面外周に沿っ
て保漁）１−スを固定し該保護ケースの曲面に鋼球を転
がせながら保持させる様にした構造が好適であること、
さらに鋼球の循環手段としては鼓形体の半円形ネジ溝の
両端間に該鼓形体の内部を通る復帰径路を設けて該鋼球
の流れを無限軌道とした１？Ｉｉ浩がすぐれたものであ
ること、を見い出したのである。That is, a drum-shaped body that rotates together with the drive shaft is provided, a semicircular thread groove is machined on the outer periphery of the drum-shaped body, and a large number of 1iIII balls that can move along the semicircular thread groove are arranged,
The rotation of the drive shaft is transmitted to the driven wheel by rolling friction of the steel balls by meshing the steel balls with a circular groove provided in the driven wheel, and the steel balls have a mechanism to prevent them from falling off. The present invention has invented a power transmission structure using a steel ball, which is characterized by being equipped with a means for preventing the steel ball from falling off, and a means for preventing the steel ball from falling off along the outer periphery of the lower half of the drum-shaped body. 1. A suitable structure is such that the steel ball is held while being rolled on the curved surface of the protective case while the base is fixed.
Furthermore, as a circulating means for the steel balls, a return path passing through the inside of the hourglass-shaped body is provided between both ends of the semicircular screw groove of the hourglass-shaped body, so that the flow of the steel balls is made into an endless trajectory. He discovered that Iihiro was excellent.
本発明を実施例をあげながら図面を参照して説明する。The present invention will be described by way of examples and with reference to the drawings.
第１図は本発明構造の１実施、例の部分切欠き正面説明
図である。FIG. 1 is a partially cutaway front explanatory view of one example of the structure of the present invention.
第２図は第１図の実施例の側面部分１＠而図である。FIG. 2 is a side view of the embodiment shown in FIG. 1.
第３図は本発明構造の要部を示した正面断面図である。FIG. 3 is a front sectional view showing essential parts of the structure of the present invention.
これらの図の様に本発明は、駆動軸（１）にこれと共に
回転する鼓形体（２）が設けられていて、この鼓形体（
２）の外周面に螺旋状となって連続している１条の溝で
あってその溝の形状が半円形になっているという半円形
ネジ溝（３）が加工されているのである。As shown in these figures, in the present invention, a drive shaft (1) is provided with a drum-shaped body (2) that rotates together with the drive shaft (1).
A semicircular screw groove (3) is machined on the outer peripheral surface of 2), which is a continuous spiral groove and has a semicircular shape.
そしてこの半円形ネジ溝（３）には多数の鋼球（４）が
きっちりと詰まる様に配列されているのである。つ１り
鋼球（４）は半円形ネジ清（３）にその半球部を沈めな
がら相互に接触して配列されているのである、
一方、従動ホイー）ｖ （５１には第２図の如く鼓形体
（２）の上半分に被さった大きな溝状輪（６）があって
、この溝状輪（６）の内面に鼓形体（２）における半円
形ネジ溝（３）と同じピッチ及びリードアングルを持っ
た半円形溝（７）が多数列に設けられているのである。A large number of steel balls (4) are arranged in this semicircular screw groove (3) so that they are tightly packed together. The steel balls (4) are arranged in contact with each other with their hemispheres submerged in the semicircular thread (3).On the other hand, the driven wheel)v (51 is shown in Fig. 2). There is a large groove ring (6) covering the upper half of the hourglass body (2), and the inner surface of this groove ring (6) has the same pitch and lead as the semicircular thread groove (3) on the hourglass body (2). Many rows of angled semicircular grooves (7) are provided.
つまり前記の鼓形体（２）の半円形ネジ溝（３）から突
出している鋼球（４）の半球部にとの従動ホイール（５
）の半円形溝（７）が被さっているのである。換言すれ
ば鼓形体（２）と従動ホイール（５）との間に介在する
鋼球（４）群を半円形ネジ異（３）と半円形溝（７）と
で噛合しているのである。In other words, the hemispherical portion of the steel ball (4) protruding from the semicircular thread groove (3) of the drum-shaped body (2) is connected to the driven wheel (5).
) is covered by the semicircular groove (7). In other words, the group of steel balls (4) interposed between the drum-shaped body (2) and the driven wheel (5) are engaged with the semicircular screw (3) and the semicircular groove (7).
この様にして駆動軸（１）を回転させてやると鋼球（４
）は半円形ネジ溝（３）と半円形溝（７）とに挾１れて
い１ので回転し、この半円形ネジ溝（３）に沿って移動
すると共に、この移動によって半円形溝（７）を押し動
かし従動ホイール（５）を回転させるのである。つま抄
部動軸（１）の回転が鋼球（４）群のコロガリ摩擦によ
って動力伝達を行い従動ホイール（５）を回転させるの
である。When the drive shaft (1) is rotated in this way, the steel balls (4
) rotates because it is sandwiched between the semicircular thread groove (3) and the semicircular groove (7), and moves along the semicircular thread groove (3). ) to rotate the driven wheel (5). The rotation of the pick shaft (1) transmits power through rolling friction between the steel balls (4) and rotates the driven wheel (5).
ところで、半円形ネジ溝（３）内に配列されている鋼球
（４）群の中で従動ホイール（５）とρ（３）合してい
る鋼球（４）はその壕までも半円形ネジ溝（３）から脱
落することはないが鼓形体（２）の下半面外周に位置す
るｎ１球（４）群には鋼球（４）の脱落防Ｉに手段が必
要となるのである。By the way, among the group of steel balls (4) arranged in the semicircular screw groove (3), the steel ball (4) that is in ρ (3) alignment with the driven wheel (5) has a semicircular shape even in its trench. A means is required to prevent the steel balls (4) from falling off from the n1 balls (4) group located on the outer periphery of the lower half of the drum-shaped body (2), although they will not fall from the screw grooves (3).
この脱落防止手段として、第３図に示されている様に鼓
形体（２）の下半面外周に沿って保護ケース（８）が設
けられているのである。As a means for preventing this falling off, a protective case (8) is provided along the outer periphery of the lower half of the hourglass-shaped body (2), as shown in FIG.
この保護ケース（８）は駆動軸（１）とはベヤリンゲイ
」の軸受け（９）を介して取付けられており、底部が１
Ｆ金００によって固定されているのである。つ捷り鼓形
体（２）が駆動軸（１）と共に回転してもこの保護ケー
ス（８）は固定したま捷となっているのである。そして
この保護ケース（８）の内面は鼓形体（２）の半円形ネ
ジ溝（３）から半球部づつ突出している鋼球（４）群を
受け止めて保持する曲面となっており、鋼球（４）はこ
の曲面に接して支持され脱落することなく転がりながら
移動できる様になっているのである。This protective case (8) is attached to the drive shaft (1) via a bearing (9) in a bearing gay.
It is fixed by FK00. Even if the rotating drum-shaped body (2) rotates together with the drive shaft (1), this protective case (8) remains fixed. The inner surface of this protective case (8) is a curved surface that receives and holds a group of steel balls (4) that protrude in hemispherical sections from the semicircular screw groove (3) of the drum-shaped body (2). 4) is supported in contact with this curved surface and can move while rolling without falling off.
なお、この保護ケース（８）は組付けを容易にするため
サポートカバー０１）を介してポル）０２１に、１ｍっ
て締付けて取付けられているものである。In order to facilitate assembly, this protective case (8) is attached to the pole (021) via a support cover (01) by tightening the protective case (8) by 1 m.
次に本発明においては鋼球（４）群は循環手段を備えて
いてその流れは無限軌道となっているのである。Next, in the present invention, the group of steel balls (4) is equipped with a circulation means, and the flow thereof is an endless track.
すなわち、鼓形体（２）の半円形ネジ溝（３）の両端間
に復帰径路Ｑ３１が設けられていて、鼓形体（２）の外
周を移動して来た鋼球（４）が半円形ネジ溝（３）の一
方の端に来るとこの復帰径路０３に流れ込んで案内され
半円形ネジ溝（３）の他端へ復帰する様になっているの
である。In other words, a return path Q31 is provided between both ends of the semicircular thread groove (3) of the drum-shaped body (2), and the steel ball (4) that has moved around the outer periphery of the drum-shaped body (2) returns to the semicircular screw. When it reaches one end of the groove (3), it flows into this return path 03 and is guided to return to the other end of the semicircular screw groove (3).
この復帰径路０３としては、例えば半円形ネジ溝（３）
の前後に位置する両端よりそれぞれ鼓形体（２）の内部
に向って流れ角を有した案内孔を穿設し、この前後の案
内孔間に螺旋状に彎曲した鋼製パイプを連結して前記両
端間を連通させてやればよいものである。As this return path 03, for example, a semicircular screw groove (3)
A guide hole having a flow angle toward the inside of the drum-shaped body (2) is bored from both ends located at the front and rear of the drum body (2), and a spirally curved steel pipe is connected between the front and rear guide holes. It is sufficient if the two ends are communicated.
なお、この復帰径路（１３１内にも半円形ネジ溝（３）
と同様にｍ球（４）が常時きっちりと詰って自−列され
ており、駆動軸（１）の回転中は全部の鋼球（４）が同
じ速さで移動して流れているのである。Note that there is also a semicircular screw groove (3) in this return path (131).
Similarly, the m balls (4) are always tightly packed and arranged in a row, and while the drive shaft (1) is rotating, all the steel balls (4) are moving and flowing at the same speed. .
本発明は以上の如き構成であり、駆動軸（１）を回転さ
せると鼓形体（２）も回転し、この鼓形体（２）の半円
形ネジ溝（３）内のｗＩ球（４）群が転がりつつ移動し
て、これら鋼球（４）群の約半数が従動ホイール（５）
の半円形溝（７）に噛合されているので従動ホイー／Ｉ
／（５）がこの鋼球（４）群の移動により回転するので
ある。そしてこの鋼球（４）は半円形ネジｒＭ （３１
を通り終ると前記の復帰径路Ｑ３１に入り次々と順次送
り込捷れて再び半円形ネジ溝（３）の入口側に戻って来
るのである。この結果、鋼球（４）群は無限軌道となっ
て循環し従動ホイー）ｖ （５１を連続的に回転させる
のである。The present invention has the above configuration, and when the drive shaft (1) is rotated, the drum-shaped body (2) also rotates, and the group of wI balls (4) in the semicircular screw groove (3) of the drum-shaped body (2) is rotated. The steel balls (4) move while rolling, and about half of these steel balls (4) are driven by the driven wheel (5).
Since it is engaged with the semicircular groove (7) of the driven wheel/I
/(5) is rotated by the movement of this group of steel balls (4). And this steel ball (4) has a semicircular screw rM (31
After passing through, it enters the return path Q31, is fed one after another, and returns to the entrance side of the semicircular screw groove (3). As a result, the group of steel balls (4) circulates in an endless orbit and continuously rotates the driven wheel )v(51).
捷だ、これら鋼球（４）群の中で従動ホイール（５）の
半円形溝（７）と噛合していないものは、必ず保護ケー
ス（８）の内側曲面に支えられているか或いは復帰径路
０３内にＹとＲで、脱落することはないのである。Of these steel balls (4), those that are not engaged with the semicircular groove (7) of the driven wheel (5) are always supported by the inner curved surface of the protective case (8) or are not connected to the return path. Since Y and R are in 03, they will not fall off.
なお、本発明構造において、鼓形体（２）の大ききゃこ
の外周の半円形ネジ溝（３）の螺旋回数、鋼球（４）の
大きさ、などは目的により適宜に設計できることは勿論
であり、鋼球（４）を噛合している鼓形体（２）の表面
と従動ホイール（５）の溝状輪（６）の内面との間には
僅かのクリアランスがあって両者が接触しない様に設計
されていることは云うまでもない。In the structure of the present invention, it is of course possible to design the number of spirals of the semicircular thread groove (3) on the outer periphery of the large cap of the hourglass-shaped body (2), the size of the steel ball (4), etc. as appropriate depending on the purpose. There is a slight clearance between the surface of the drum-shaped body (2) that engages the steel ball (4) and the inner surface of the grooved ring (6) of the driven wheel (5), so that the two do not come into contact. Needless to say, it is designed.
以上詳細に説明した様に、本発明（ｄ ！！ｉｌＸ動輔
と従動ホイールとの間に鋼球群を介在させてコロガリ摩
擦によって円滑にｉｉ＋１力伝達を行うもので機構では
７０％位の効率］−かなか。たものを。As explained in detail above, the present invention (d!!ilX) interposes a group of steel balls between the driving wheel and the driven wheel to smoothly transmit ii+1 force by rolling friction, and the mechanism has an efficiency of about 70%. ]-Kanaka. Something.
９０％以上に高めることができ、１だ発熱も低いのでこ
の悪影響もなく従動ホイールの材質に制約を受けること
も少なくなり、さらに減連比についても従来では１対６
０程度が最大とされていたが、本発明ではネジ溝の進角
との関係が僅少になるので１対１００程度まで引−りげ
ることが可能となる、など種々なる非常にすぐれた効果
を奏するものである。The reduction ratio can be increased to more than 90%, and the heat generation is 1.5 times lower, so there is no negative effect and there are fewer restrictions on the material of the driven wheel.Furthermore, the reduction ratio has been reduced from 1 to 6 compared to the conventional one.
About 0 was considered to be the maximum, but in the present invention, the relationship with the advance angle of the thread groove becomes slight, so it is possible to extend the lead angle to about 1:100, and has various very excellent effects. It is something that plays.
第１図は本発明構造の１実Ｍｌｉ例の部分切欠き正面説
明図である。
第２ばは第１図の実施例の側面部分断面図である。
第３図は本発明構造の要部を示した正面断面図である。
（１）・・・駆動軸、（２）・・・鼓形体、（３）・・
・半円形ネジ溝、（４）・・・鋼球、（５）・・・従動
ホイール、（６）・・・（５）の溝状幅、（７）・・・
半円形溝、（８）・・・保護ケース、（９）・・・軸受
け、００・・・１Ｌ金、０１）・・・サポートカバー、
０２・・・ボ）Ｖ ）、０３・・・復帰径路
第１図
第 ２ 図
第３図FIG. 1 is a partially cutaway front explanatory view of a single Mli example of the structure of the present invention. Figure 2 is a side partial sectional view of the embodiment of Figure 1; FIG. 3 is a front sectional view showing the main parts of the structure of the present invention. (1)...Drive shaft, (2)...Trumpet-shaped body, (3)...
・Semicircular screw groove, (4)... Steel ball, (5)... Driven wheel, (6)... Groove width of (5), (7)...
Semicircular groove, (8)...protective case, (9)...bearing, 00...1L gold, 01)...support cover,
02...B)V), 03...Return route Figure 1 Figure 2 Figure 3
Claims (1)
形体の外周に半円形ネジ溝を加工し、該半円形ネジ溝に
沿って移動し得る多数の鋼球を配列すると共に、従動ホ
イールに設けられた半円形溝との間に該鋼球群を噛合さ
せることによって該駆動軸の回転を該鋼球のコロガリ摩
擦によシ該従動ホイールに伝達し、かつ該鋼球群には脱
落防止手段と循環手段とが備えられていることを特徴と
する鋼球利用による動力伝達構造。 ２、脱落防止手段として、鼓形体の下半面外周に沿って
保護ケースを固定し該保護ケースの曲面に鋼球を転がせ
ながら保持させる様にした特許請求の範囲第１項記載の
鋼球利用による動力伝達構造。 ３、循環手段として、鼓形体の半円形ネジ７７、”１の
両端間に該鼓形体の内部を通る復帰ｉ￥路を設けて核鋼
球の流れを無限軌道とした特ｒ（’ 請求の範囲第１項
記載の鋼球利用による動力伝達構造。[Claims] 1. Kaku! l? A drum-shaped body that rotates together with the no. The rotation of the drive shaft is transmitted to the driven wheel by rolling friction of the steel balls by meshing the steel balls with a semicircular groove, and the steel balls are provided with means for preventing them from falling off. A power transmission structure using steel balls, characterized in that it is equipped with a circulation means. 2. As a fall prevention means, a protective case is fixed along the outer periphery of the lower half of the drum-shaped body, and the steel balls are held on the curved surface of the protective case while rolling. Power transmission structure. 3. As a circulation means, a return path passing through the inside of the drum-shaped body is provided between both ends of the semicircular screw 77 of the drum-shaped body, so that the flow of the nuclear steel balls is made into an endless trajectory. A power transmission structure using steel balls as described in Scope 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2232884A JPS60168936A (en) | 1984-02-08 | 1984-02-08 | Power transmission structure utilizing steel ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2232884A JPS60168936A (en) | 1984-02-08 | 1984-02-08 | Power transmission structure utilizing steel ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60168936A true JPS60168936A (en) | 1985-09-02 |
Family
ID=12079640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2232884A Pending JPS60168936A (en) | 1984-02-08 | 1984-02-08 | Power transmission structure utilizing steel ball |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60168936A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63157553U (en) * | 1987-03-31 | 1988-10-17 | ||
| WO2006082935A1 (en) * | 2005-02-04 | 2006-08-10 | Thk Co., Ltd. | Worm gear |
| DE102013007462A1 (en) * | 2013-05-02 | 2014-11-06 | Klaus David | Ball Schneckenradtrieb |
| US9927012B2 (en) | 2015-05-27 | 2018-03-27 | Universidad Nacional Autonoma De Mexico | Driving screw and chain speed reducer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4831172A (en) * | 1971-08-12 | 1973-04-24 |
-
1984
- 1984-02-08 JP JP2232884A patent/JPS60168936A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4831172A (en) * | 1971-08-12 | 1973-04-24 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63157553U (en) * | 1987-03-31 | 1988-10-17 | ||
| WO2006082935A1 (en) * | 2005-02-04 | 2006-08-10 | Thk Co., Ltd. | Worm gear |
| DE102013007462A1 (en) * | 2013-05-02 | 2014-11-06 | Klaus David | Ball Schneckenradtrieb |
| DE102013007462B4 (en) * | 2013-05-02 | 2017-08-17 | Klaus David | Ball Schneckenradtrieb |
| US9927012B2 (en) | 2015-05-27 | 2018-03-27 | Universidad Nacional Autonoma De Mexico | Driving screw and chain speed reducer |
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