JP2011174512A - Bearing unit with pulley - Google Patents

Bearing unit with pulley Download PDF

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Publication number
JP2011174512A
JP2011174512A JP2010038074A JP2010038074A JP2011174512A JP 2011174512 A JP2011174512 A JP 2011174512A JP 2010038074 A JP2010038074 A JP 2010038074A JP 2010038074 A JP2010038074 A JP 2010038074A JP 2011174512 A JP2011174512 A JP 2011174512A
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JP
Japan
Prior art keywords
pulley
bearing unit
bearing
shaft
inner diameter
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
JP2010038074A
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Japanese (ja)
Inventor
Toru Nanasawa
透 七澤
Shigeki Maehara
茂樹 前原
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NSK Ltd
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NSK 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 NSK Ltd filed Critical NSK Ltd
Priority to JP2010038074A priority Critical patent/JP2011174512A/en
Publication of JP2011174512A publication Critical patent/JP2011174512A/en
Pending legal-status Critical Current

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  • Pulleys (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bearing unit with a pulley, that eliminates a pulley assembly process aiming at a reduction in working hour. <P>SOLUTION: In the bearing unit 1 with the pulley, a groove 8 for setting a wire or a belt thereto is formed in a flange 3 provided on a housing 2 to constitute the pulley 4. In the inner diameter of the housing 1, a stepped part 5 is provided near the center. The outer ring of a single row ball bearing 6 abuts on both sides of the stepped part 5. A shaft (solid) 7 is inserted into the inner diameter of the ball bearing 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は回転運動伝達用プーリ付軸受ユニットに関するものである。   The present invention relates to a bearing unit with a pulley for transmitting rotational motion.

従来より、ベルト、またはワイヤなどを介して回転運動を伝達する手段としてプーリが使用されている。プーリを回転させる手段として、高速化、及び低トルク化という観点から、玉軸受が使用されている。
製造現場において、作業員がプーリに軸受を組み込んでいる。しかし、組込み作業時間短縮の観点から、製造現場におけるプーリ組立工程を省略したいという課題があった。 Conventionally, pulleys have been used as means for transmitting rotational motion via belts or wires. As means for rotating the pulley, a ball bearing is used from the viewpoint of speeding up and torque reduction.
At the manufacturing site, a worker has incorporated a bearing into the pulley. However, from the viewpoint of shortening the assembly work time, there is a problem that the pulley assembly process at the manufacturing site is desired to be omitted.

上記課題を改善するための先行技術としては、図３（特許文献１）が挙げられる。特許文献１は、プーリ一体型軸受２１に関する発明である。この発明は、予めプーリ２２の内径部に軸受２３を組み込みことにより、製造現場におけるプーリ組立工程を省略することができる。   FIG. 3 (Patent Document 1) is given as a prior art for improving the above problem. Patent Document 1 is an invention related to a pulley-integrated bearing 21. In the present invention, the pulley assembly process at the manufacturing site can be omitted by incorporating the bearing 23 in the inner diameter portion of the pulley 22 in advance.

特開２０００−２９１７８６号公報JP 2000-291786 A

しかしながら、この先行技術には、軸受２３内径に軸を挿入する作業が依然として存在する。製造現場において、更なるプーリ組み込み時間短縮の観点から、軸受２３内径に軸を挿入する作業を省略したいという課題があった。   However, in this prior art, there is still an operation for inserting a shaft into the inner diameter of the bearing 23. At the manufacturing site, from the viewpoint of further shortening the pulley assembly time, there has been a problem of omitting the operation of inserting the shaft into the inner diameter of the bearing 23.

本発明は、上記課題を解決するために、次のような構成を取る。   In order to solve the above problems, the present invention has the following configuration.

外径に溝が形成されたフランジを設け、かつ、内径に２個の玉軸受の外輪を突き当てることができる段差部を設けたハウジングと、軸を挿入した前記２個の玉軸受とを有するプーリ付軸受ユニットを特徴とする。さらに、軸は、中空であることも特徴とする。   A housing having a flange having a groove formed on the outer diameter and a stepped portion capable of abutting the outer ring of two ball bearings on the inner diameter, and the two ball bearings having shafts inserted therein Features a bearing unit with pulley. Further, the shaft is hollow.

本発明によれば、製造現場で、玉軸受に軸を挿入する必要はないので、作業時間短縮の観点から、製造現場におけるプーリ組立工程が省略できるという効果が有る。   According to the present invention, since it is not necessary to insert a shaft into the ball bearing at the manufacturing site, there is an effect that the pulley assembly process at the manufacturing site can be omitted from the viewpoint of shortening the working time.

本発明に係る第１の実施形態である軸が中実であるプーリ付軸受ユニットを示すものである。1 shows a pulley-equipped bearing unit having a solid shaft according to a first embodiment of the present invention. 本発明に係る第２の実施形態である軸が中空であるプーリ付軸受ユニットを示すものである。The shaft bearing unit with a pulley whose shaft which is the 2nd embodiment concerning the present invention is hollow is shown. 従来例を示すものである。A conventional example is shown.

以下、図１に基づき、本発明の第１の実施形態を説明する。
プーリ付軸受ユニット１において、ハウジング２に設けられたフランジ３に、溝８が形成されている。溝８が形成されたフランジ３はプーリ４を構成する。ハウジング１の内径には、中央付近に段差部５を設けている。段差部５の両側には、単列の玉軸受６の外輪が突き当たる。玉軸受６の内径には、軸（中実）７が挿入されている。プーリ４、玉軸受６、軸（中実）７をユニット化したプーリ付軸受ユニット１は、製造現場でプーリを組み立てる工程を省略することができる。 The first embodiment of the present invention will be described below with reference to FIG.
In the pulley bearing unit 1, a groove 8 is formed in the flange 3 provided in the housing 2. The flange 3 in which the groove 8 is formed constitutes a pulley 4. A step portion 5 is provided near the center of the inner diameter of the housing 1. The outer ring of the single row ball bearing 6 abuts on both sides of the stepped portion 5. A shaft (solid) 7 is inserted into the inner diameter of the ball bearing 6. The pulley-equipped bearing unit 1 in which the pulley 4, the ball bearing 6, and the shaft (solid) 7 are unitized can omit the step of assembling the pulley at the manufacturing site.

以下、図２に基づき、本発明の第２の実施形態を説明する。
プーリ付軸受ユニット１１において、ハウジング１２に設けられたフランジ１３に、溝１８が形成されている。溝１８が形成されたフランジ１３はプーリ１４を構成する。ハウジング１１の内径には、中央付近に段差部１５を設けている。段差部１５の両側には、単列の玉軸受１６の外輪が突き当たる。玉軸受１６の内径には、軸（中空）１７が挿入されている。プーリ１４、玉軸受１６、軸（中空）１７をユニット化したプーリ付軸受ユニット１１は、本実施形態においても、第１の実施形態と同様の効果が得られる。 Hereinafter, a second embodiment of the present invention will be described with reference to FIG.
In the pulley bearing unit 11, a groove 18 is formed in a flange 13 provided in the housing 12. The flange 13 in which the groove 18 is formed constitutes the pulley 14. On the inner diameter of the housing 11, a step 15 is provided near the center. The outer ring of the single row ball bearing 16 abuts on both sides of the step portion 15. A shaft (hollow) 17 is inserted into the inner diameter of the ball bearing 16. The pulley-equipped bearing unit 11 in which the pulley 14, the ball bearing 16, and the shaft (hollow) 17 are unitized can provide the same effects as those of the first embodiment.

本発明はベルト、またはワイヤを介して回転運動を伝達させる機械要素として使用、例えば、ロボットの関節部分用として使用する。   The present invention is used as a mechanical element for transmitting rotational motion via a belt or a wire, for example, for a joint portion of a robot.

１ プーリ付軸受ユニット
２ ハウジング
３ フランジ
４ プーリ
５ 段差部
６ 玉軸受
７ 軸（中実）
８ 溝
１１ プーリ付軸受ユニット
１２ ハウジング
１３ フランジ
１４ プーリ
１５ 段差部
１６ 玉軸受
１７ 軸（中空）
１８ 溝
２１ プーリ一体型軸受
２２ プーリ
２３ 玉軸受 1 Bearing unit with pulley 2 Housing 3 Flange 4 Pulley 5 Step part 6 Ball bearing 7 Shaft (solid)
8 Groove 11 Bearing unit with pulley 12 Housing 13 Flange 14 Pulley 15 Stepped portion 16 Ball bearing 17 Shaft (hollow)
18 Groove 21 Pulley integrated bearing 22 Pulley 23 Ball bearing

Claims (2)

外径に溝が形成されたフランジを設け、かつ、内径に２個の玉軸受の外輪を突き当てることができる段差部を設けたハウジングと、軸を挿入した前記２個の玉軸受とを有するプーリ付軸受ユニット。   A housing having a flange having a groove formed on the outer diameter and a stepped portion capable of abutting the outer ring of two ball bearings on the inner diameter, and the two ball bearings having shafts inserted therein Bearing unit with pulley. 前記軸が中空であることを特徴とする請求項１のプーリ付軸受ユニット。   The bearing unit with pulley according to claim 1, wherein the shaft is hollow.
JP2010038074A 2010-02-24 2010-02-24 Bearing unit with pulley Pending JP2011174512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010038074A JP2011174512A (en) 2010-02-24 2010-02-24 Bearing unit with pulley

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010038074A JP2011174512A (en) 2010-02-24 2010-02-24 Bearing unit with pulley

Publications (1)

Publication Number Publication Date
JP2011174512A true JP2011174512A (en) 2011-09-08

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ID=44687560

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010038074A Pending JP2011174512A (en) 2010-02-24 2010-02-24 Bearing unit with pulley

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Country Link
JP (1) JP2011174512A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103925354A (en) * 2014-03-27 2014-07-16 安徽华兴金属有限责任公司 Locking belt pulley
JP2020031771A (en) * 2018-08-28 2020-03-05 株式会社メディカロイド Surgical instrument

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103925354A (en) * 2014-03-27 2014-07-16 安徽华兴金属有限责任公司 Locking belt pulley
JP2020031771A (en) * 2018-08-28 2020-03-05 株式会社メディカロイド Surgical instrument

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