JPH058037U - Slewing bearing - Google Patents

Slewing bearing

Info

Publication number
JPH058037U
JPH058037U JP053774U JP5377492U JPH058037U JP H058037 U JPH058037 U JP H058037U JP 053774 U JP053774 U JP 053774U JP 5377492 U JP5377492 U JP 5377492U JP H058037 U JPH058037 U JP H058037U
Authority
JP
Japan
Prior art keywords
bearing
load ball
ball grooves
raceway
ball
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
Application number
JP053774U
Other languages
Japanese (ja)
Inventor
勝利 伊東
Original Assignee
株式会社椿本精工
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 株式会社椿本精工 filed Critical 株式会社椿本精工
Priority to JP053774U priority Critical patent/JPH058037U/en
Publication of JPH058037U publication Critical patent/JPH058037U/en
Pending legal-status Critical Current

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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/50—Other types of ball or roller bearings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
    • F16C29/0652—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage
    • F16C29/0654—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
    • F16C29/0652—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage
    • F16C29/0654—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls
    • F16C29/0659—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls with four rows of balls
    • F16C29/0661—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls with four rows of balls with load directions in O-arrangement

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

(57)【要約】 【目的】 構成が簡単で組立ても容易であるとともに、
従来の内輪・外輪方式のベアリングに比して重量が少な
い、旋回部分の支持用ベアリングを提供する。 【構成】 旋回ベアリングは、一定の曲率半径をもって
形成され内外径両側面に負荷ボール溝１１，１１’を有
する軌道体１０と、その負荷ボール溝１１，１１’に適
合する曲率の負荷ボール溝２１’，２１’’を軌道体１
０を挟む２つの脚部内面に形成したベアリング本体２１
と、無負荷ボールの循環手段２１’’’と、軌道体１０
及びベアリング本体２１の各々の負荷ボール溝の間及び
循環手段に装填された複数のボールとからなる。 (57) [Summary] [Purpose] The structure is simple and easy to assemble.
(EN) Provided is a bearing for supporting a turning portion, which has a smaller weight than a conventional inner ring / outer ring type bearing. A slewing bearing includes a raceway body 10 having a constant radius of curvature and having load ball grooves 11 and 11 'on both inner and outer diameter sides, and a load ball groove 21 having a curvature suitable for the load ball grooves 11 and 11'. ', 21' is the orbiter 1
Bearing body 21 formed on the inner surface of the two legs sandwiching 0
And an unloaded ball circulating means 21 ′ ″ and a track body 10.
And a plurality of balls mounted between the respective load ball grooves of the bearing body 21 and in the circulation means.

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

この考案は、例えば、トラッククレーン、産業用ロボット等の各種の旋回部分 の支持に用いられる旋回ベアリングに関する。 The present invention relates to a slewing bearing used to support various slewing parts such as a truck crane and an industrial robot.

【０００２】[0002]

【従来技術及びその問題点】[Prior art and its problems]

従来、前記のような旋回部分の支持に用いられるベアリングとしては、内輪と 外輪とからなるものが用いられることが多い。 ところが、このような内輪外輪方式によれば、２個のレースリングを使用しな ければならないのでコスト的に高くなるばかりでなく、重量も重くなる欠点があ る。 Conventionally, as a bearing used for supporting the above-described turning portion, a bearing having an inner ring and an outer ring is often used. However, such an inner ring / outer ring method has a drawback that not only the cost is increased because two race rings must be used, but also the weight is increased.

【０００３】 特開昭５９−２０８２１８号公報に示されるものは、円周上の数箇所に配置し た複数のベアリングにより軌道体を支持し、このベアリング体においてボールが 無限に循環するように構成したものである。 ところが、この公報に示されるものにおいては、軌道体とベアリング体間に予 圧力が働き合う欠点があり、また、芯出しの調整が困難であり、且つ正確な組立 てと現場での予圧調整が困難であるという欠点がある。The one disclosed in Japanese Patent Application Laid-Open No. 59-208218 is configured so that a track body is supported by a plurality of bearings arranged at several positions on the circumference, and the balls circulate infinitely in this bearing body. It was done. However, in the one disclosed in this publication, there is a drawback that preload acts between the raceway body and the bearing body, and it is difficult to adjust the centering, and accurate assembly and on-site preload adjustment are not possible. It has the drawback of being difficult.

【０００４】[0004]

【問題点を解決するための手段及び作用】[Means and Actions for Solving Problems]

この考案は、一定の曲率半径をもって形成され内外径両側面に負荷ボール溝を 有する軌道体と、該負荷ボール溝に適合する曲率の負荷ボール溝を前記軌道体を 挟む２つの脚部内面に形成したベアリング本体と、無負荷ボールの循環手段と、 前記軌道体及び前記ベアリング本体の各々の負荷ボール溝の間及び前記循環手段 に装填された複数のボールとからなる旋回ベアリングによって、前記問題点を解 決した。 In this invention, a raceway body having a constant radius of curvature and having load ball grooves on both inner and outer diameter sides, and a load ball groove having a curvature matching the load ball groove are formed on the inner surfaces of two legs that sandwich the raceway body. The problem is solved by a slewing bearing including a bearing body, a non-loaded ball circulating means, a plurality of balls loaded in the circulating means and between the load ball grooves of the bearing body and the bearing body, respectively. Settled.

【０００５】 軌道体とベアリング本体との間に相対的移動が生じようとすると、軌道体とベ アリング本体の各々の負荷ボール溝の間に挟まれたボールが転がることによって 両者間の案内がなされ、且つ、無負荷ボールの循環手段が設けられていることに より、ボールが無限に循環する。 また、軌道体とベアリング本体とは予圧が付与された状態で組立て一体化され うるので、組立て、取付を容易に行うことができる。When relative movement is about to occur between the raceway body and the bearing body, the balls sandwiched between the loaded ball grooves of the raceway body and the bearing body roll to guide each other. In addition, the circulation of the unloaded ball is provided, so that the ball circulates infinitely. Further, since the raceway body and the bearing body can be assembled and integrated in a state where a preload is applied, they can be easily assembled and attached.

【０００６】[0006]

【実施例】【Example】

以下、本考案の実施例を添付図面に基づいて説明する。 図１において符号１０は中心線が曲率半径Ｒを有する軌道体（内歯車又は外歯 車がつく場合が多い）であって、円形をなすものの一部のみを示してある。符号 ２０はこの軌道体に対して跨がるような位置関係に設けられるベアリング集合体 である。ベアリング集合体２０はベアリング本体２１とリターンキャップ２２と ワイパー２３とを有している。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In FIG. 1, reference numeral 10 is a raceway body (often having an internal gear or an external gear) whose center line has a radius of curvature R, and only a part of a circular shape is shown. Reference numeral 20 is a bearing assembly provided in a positional relationship so as to straddle the track body. The bearing assembly 20 has a bearing body 21, a return cap 22, and a wiper 23.

【０００７】 図２に示すように、軌道体１０には、その内外径両側面に各々一対の負荷ボー ル溝１１，１１’が設けられている。 そして、ベアリング本体２１には前記軌道体１０の負荷ボール溝１１，１１’ に対向するように２つの脚部２１Ｌの内面に負荷ボール溝２１，２１’’が設け られている。As shown in FIG. 2, the track body 10 is provided with a pair of load ball grooves 11 and 11 ′ on both inner and outer diameter side surfaces thereof. The bearing body 21 is provided with load ball grooves 21, 21 '' on the inner surfaces of the two legs 21L so as to face the load ball grooves 11, 11 'of the raceway body 10.

【０００８】 図１から知られるように、これらの軌道体１０の負荷ボール溝１１，１１’と ベアリング本体２１の負荷ボール溝２１，２１’’の各曲率は負荷ボール３０を 挟むことができるように適合していなければならない。As is known from FIG. 1, the curvatures of the load ball grooves 11 and 11 ′ of these raceways 10 and the load ball grooves 21 and 21 ″ of the bearing body 21 enable the load ball 30 to be sandwiched. Must comply with.

【０００９】 次に、無負荷ボールの循環手段について説明すると、図１に示すリターンキャ ップ２２はボールを１８０度方向変換させるための方向転換溝２２’を有してお り、この部分において１８０度方向転換された無負荷ボールがベアリング本体２ １に貫通して設けられた無負荷ボール溝２１’’’に導かれてボールが無限に循 環するようになっている。Next, the circulation means of the unloaded ball will be described. The return cap 22 shown in FIG. 1 has a direction change groove 22 'for changing the direction of the ball by 180 degrees. The unloaded balls, which have been turned by 180 degrees, are guided to the unloaded ball groove 21 '' 'provided through the bearing body 21 so that the balls circulate infinitely.

【００１０】 本考案の旋回ベアリングにボール３０を組込むためには、図３に示すようにベ アリング本体２１の側面の一部に蓋２１Ａを設けてこの部分からボールを出し入 れし、この蓋２１Ａによりボール３０が脱出しないようにする。In order to assemble the ball 30 into the slewing bearing of the present invention, a lid 21A is provided on a part of the side surface of the bearing main body 21 as shown in FIG. 21A prevents the ball 30 from escaping.

【００１１】 次に、図４、図５に示される実施例のものは、ベアリング集合体４０の無負荷 ボールの循環手段として、対向するＪ字状のチューブ体５０を用いた場合を示す ものである。このようなチューブ体５０を用いた場合にも、軌道体１０の形状及 びベアリング本体４１の負荷溝の形状には何も変更はない。なお、ボールの出入 れをするために、ベアリング本体４１の側面部に設けるチューブ体の取付カバー ４２に、図３に示されるものと同等の蓋を設けることは第１の実施例と同様であ る。また、チューブ体は二つ割にして成形及び組立てを容易にする。４３は両端 部に設けるチューブ体の取付カバーである。このチューブ方式の場合は、ベアリ ング本体４１に無負荷ボール溝となる貫通孔を加工する必要がない。Next, the embodiment shown in FIGS. 4 and 5 shows a case where opposing J-shaped tube bodies 50 are used as the circulating means of the unloaded balls of the bearing assembly 40. is there. Even when such a tube body 50 is used, there is no change in the shape of the track body 10 and the shape of the load groove of the bearing body 41. It is to be noted that, in order to allow the balls to move in and out, a cover equivalent to that shown in FIG. 3 is provided on the tube body mounting cover 42 provided on the side surface portion of the bearing body 41, as in the first embodiment. It In addition, the tube body is divided into two parts to facilitate molding and assembly. Reference numeral 43 is a tube body mounting cover provided at both ends. In the case of this tube system, it is not necessary to form a through hole which becomes an unloaded ball groove in the bearing main body 41.

【００１２】 次に、図６に示した実施例は、断面が半円状の対向Ｊ字状無負荷ボール溝６１ を両面に形成したブッロク状部材６０の上に対向Ｊ字状の半割りチューブ体５０ ’を被せることによって、無負荷ボールの循環手段を形成した実施例を示したも のである。その他の構成はこれ迄のものと同様である。Next, in the embodiment shown in FIG. 6, an opposed J-shaped half-split tube is placed on a block-shaped member 60 having opposed J-shaped unloaded ball grooves 61 having a semicircular cross section on both sides. An embodiment is shown in which the unloaded ball circulating means is formed by covering the body 50 '. Other configurations are the same as those of the previous ones.

【００１３】 以上に説明した実施例においては、ボールの列が上下（又は左右）に２列ずつ 設けられてあるが、このようにボール列を２列にすることは必ずしも必要でなく 、図７、図８に示す実施例のようにボールの列は１列であってもよいのである。 このうち、図７に示したものは、図１の実施例に対応するものであって、無負 荷ボール溝はベアリング本体７１に貫通する孔７１’から形成されている。 そして、図８に示されるものは、無負荷ボールの循環手段を、第２の実施例に 対応するチューブ体８０から構成したものである。In the embodiment described above, two rows of balls are provided above and below (or to the left and right), but it is not always necessary to provide two rows of balls in this way. The row of balls may be one row as in the embodiment shown in FIG. Of these, the one shown in FIG. 7 corresponds to the embodiment of FIG. 1, and the unloaded ball groove is formed from a hole 71 ′ penetrating the bearing body 71. And what is shown in FIG. 8 is that in which the circulating means for the unloaded balls is composed of the tube body 80 corresponding to the second embodiment.

【００１４】 以上に説明した、ボールの列が２列に設けられる場合には、負荷ボール溝の形 状をサーキュラアーク形状とすることにより、上下左右方向からの負荷を支持す ることができる旋回ベアリングを実現することができる。When two rows of balls are provided as described above, by making the shape of the load ball groove a circular arc shape, it is possible to support the load from the vertical and horizontal directions. Bearing can be realized.

【００１５】 なお、ベアリング集合体は軌道体に対して４〜８個設けることが多い。また、 必ずしも軌道体が回転する使用法に限らず、軌道体が固定される使用法も可能で ある。In many cases, 4 to 8 bearing assemblies are provided for the raceway body. Further, the usage method is not limited to the rotation of the track body, and the usage method of fixing the track body is also possible.

【００１６】[0016]

【考案の効果】[Effect of the device]

軌道体とベアリング集合体とが一体化されているので、ベアリングの構成が極 めて簡単になり、組立ても容易となる。 予圧の調整はメーカーにおいて組立て時に精度よく調整することができるので 、取付時の作業が簡単になる。 そして、従来の内輪・外輪方式のベアリングに比して重量が極めて少なくてす む。 Since the raceway body and the bearing assembly are integrated, the structure of the bearing is extremely simple and easy to assemble. The preload can be adjusted with high precision at the time of assembly by the manufacturer, which simplifies the work during installation. In addition, the weight is extremely small compared to the conventional inner ring / outer ring type bearing.

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

【図１】は第１の実施例の上面図、FIG. 1 is a top view of the first embodiment,

【図２】は第１図のＩＩ−ＩＩ線方向断面図、2 is a sectional view taken along line II-II of FIG.

【図３】はボールの出入れ部の斜視図、[FIG. 3] is a perspective view of a ball loading / unloading portion,

【図４】は第２の実施例の上面図、FIG. 4 is a top view of the second embodiment,

【図５】は図４のＶ−Ｖ線方向断面図、5 is a sectional view taken along line VV of FIG.

【図６】は第３の実施例の第２図に対応する断面図、FIG. 6 is a sectional view corresponding to FIG. 2 of the third embodiment,

【図７】は第４の実施例の断面図、FIG. 7 is a sectional view of the fourth embodiment,

【図８】は第５の実施例の断面図である。FIG. 8 is a sectional view of a fifth embodiment.

【符号の説明】[Explanation of symbols]

１０ 軌道体 １１，１１’ 負荷ボール溝 ２１，４１，７１ ベアリング本体 ２１’，２１’’ 負荷ボール溝 ２１’’’，２２’ 無負荷ボール循環手段 10 orbital body 11, 11 'load ball groove 21, 41, 71 bearing body 21', 21 '' load ball groove 21 '' ', 22' unloaded ball circulating means

Claims (1)

【実用新案登録請求の範囲】 【請求項１】 一定の曲率半径をもって形成され内外径
両側面に負荷ボール溝を有する軌道体と、該負荷ボール
溝に適合する曲率の負荷ボール溝を前記軌道体を挟む２
つの脚部内面に形成したベアリング本体と、無負荷ボー
ルの循環手段と、前記軌道体及び前記ベアリング本体の
各々の負荷ボール溝の間及び前記循環手段に装填された
複数のボールとからなる旋回ベアリング。[Claims for utility model registration] Claims: 1. A raceway body having a constant radius of curvature and having load ball grooves on both inner and outer diameter sides, and a load ball groove having a curvature that matches the load ball groove. Sandwich 2
Slewing bearing consisting of a bearing body formed on the inner surface of one leg, an unloaded ball circulating means, a plurality of balls loaded between the loaded ball grooves of the raceway and the bearing body, and the circulating means. .
JP053774U 1992-07-09 1992-07-09 Slewing bearing Pending JPH058037U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP053774U JPH058037U (en) 1992-07-09 1992-07-09 Slewing bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP053774U JPH058037U (en) 1992-07-09 1992-07-09 Slewing bearing

Publications (1)

Publication Number Publication Date
JPH058037U true JPH058037U (en) 1993-02-02

Family

ID=12952169

Family Applications (1)

Application Number Title Priority Date Filing Date
JP053774U Pending JPH058037U (en) 1992-07-09 1992-07-09 Slewing bearing

Country Status (1)

Country Link
JP (1) JPH058037U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006100735A1 (en) * 2005-03-18 2006-09-28 Thk Co., Ltd. Guide device
JP4484964B2 (en) * 2007-09-28 2010-06-16 Ｔｈｋ株式会社 Slewing ring
JP2013245721A (en) * 2012-05-24 2013-12-09 Nsk Ltd Linear motion guide device
CN111577763A (en) * 2020-05-22 2020-08-25 浙江威肯特智能机械有限公司 High-yield linear sliding block

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430465A (en) * 1977-08-10 1979-03-06 Anritsu Electric Co Ltd Electromagnet driving circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430465A (en) * 1977-08-10 1979-03-06 Anritsu Electric Co Ltd Electromagnet driving circuit

Cited By (6)

* Cited by examiner, † Cited by third party
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WO2006100735A1 (en) * 2005-03-18 2006-09-28 Thk Co., Ltd. Guide device
JP4484964B2 (en) * 2007-09-28 2010-06-16 Ｔｈｋ株式会社 Slewing ring
JPWO2009041311A1 (en) * 2007-09-28 2011-01-27 Thk株式会社 Swivel ring
US7967511B2 (en) 2007-09-28 2011-06-28 Thk Co., Ltd. Rotation ring
JP2013245721A (en) * 2012-05-24 2013-12-09 Nsk Ltd Linear motion guide device
CN111577763A (en) * 2020-05-22 2020-08-25 浙江威肯特智能机械有限公司 High-yield linear sliding block

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