JP2015230011A - 転動装置および転動装置の製造方法 - Google Patents
転動装置および転動装置の製造方法 Download PDFInfo
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- JP2015230011A JP2015230011A JP2014114716A JP2014114716A JP2015230011A JP 2015230011 A JP2015230011 A JP 2015230011A JP 2014114716 A JP2014114716 A JP 2014114716A JP 2014114716 A JP2014114716 A JP 2014114716A JP 2015230011 A JP2015230011 A JP 2015230011A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
- F16C29/0635—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 provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
- F16C29/0638—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 provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls
- F16C29/0642—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 provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with four rows of balls
- F16C29/0647—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 provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with four rows of balls with load directions in X-arrangement
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- F16C29/005—Guide rails or tracks for a linear bearing, i.e. adapted for movement of a carriage or bearing body there along
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- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
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- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
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- F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
- F16C29/0611—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the return passages, i.e. the passages where the rolling elements do not carry load
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- F16C33/64—Special methods of manufacture
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
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- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
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- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/664—Retaining the liquid in or near the bearing
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- Bearings For Parts Moving Linearly (AREA)
Abstract
Description
まず、第一の実施形態に係る転動装置100の構成例について、図1〜図4を用いて説明する。ここで、図1は、第一の実施形態に係る転動装置の構成例を説明するための部分破断斜視外観図であり、図2は、図1で示された転動装置の内部構成を説明するための縦断面図である。また、図3は、第一の実施形態に係る外方部材の構成例を説明するための概略図であり、図4は、第一の実施形態に係る内方部材の構成例を説明するための概略図である。
第二の実施形態に係る転動装置200は、外面に軌道面を有する内方部材としての軌道レール11と、内方部材の軌道面に対向する軌道面を有して内方部材の外側に配置された外方部材としての移動ブロック13と、両軌道面間に転動自在に配置された転動体としてのボール15と、内方部材としての軌道レール11又は外方部材としての移動ブロック13のうちの少なくとも1つの内部に形成される空間10と、伸縮構造からなる外力吸収機構30と、を有して構成される。
第三の実施形態に係る転動装置300は、外面に軌道面を有する内方部材としての軌道レール11と、内方部材の軌道面に対向する軌道面を有して内方部材の外側に配置された外方部材としての移動ブロック13と、両軌道面間に転動自在に配置された転動体としてのボール15と、内方部材としての軌道レール11又は外方部材としての移動ブロック13のうちの少なくとも1つの内部に形成される空間10と、転動体としてのボール15に潤滑剤を供給する潤滑剤供給機構40と、を有して構成される。
まず、本実施例に係る転動装置400の全体の構成例について、図7〜図11を用いて説明する。本実施例に係る転動装置400は、外面に軌道面を有する内方部材としての軌道レール11と、内方部材の軌道面に対向する軌道面を有して内方部材の外側に配置された外方部材としての移動ブロック13と、両軌道面間に転動自在に配置された転動体としてのボール15と、を有して構成される。
本実施形態および実施例に係る転動装置100,200,300,400は、3D(three-dimensional)プリンターにより製造することができる。3Dプリンターとは、例えば、合成樹脂や石膏などの粉末をノズルで吹き付けて積層にしたり、光硬化樹脂に紫外線などを照射して硬化させたりすることで、立体物を造形する装置である。3Dプリンターによれば、3Dのデータを元に立体を造形することができる。
(転動体ねじ装置への適用例)
本実施形態および実施例に係る転動装置100,200,300,400は、例えば、図19において示されるようなボールねじ装置50として構成することが可能である。図19は、本実施形態に係る転動装置をボールねじ装置として構成した場合を例示する図である。かかるボールねじ装置50は、内方部材としてのねじ軸57と、このねじ軸57に複数のボール58を介して相対回転可能に取り付けられる外方部材としてのナット部材59とを備えた装置である。
さらに、本実施形態および実施例に係る転動装置100,200,300,400は、例えば、図20において示されるようなスプライン装置60として構成することが可能である。図20は、本実施形態に係る転動装置をスプライン装置として構成した場合を例示する図である。
またさらに、本実施形態および実施例に係る転動装置100,200,300,400は、例えば、図21および図22において示されるような回転ベアリング装置70として構成することが可能である。ここで、図21は、本実施形態に係る転動装置を回転ベアリング装置として構成した場合の一形態を例示する部分縦断斜視図である。また、図22は、図21に示す回転ベアリング装置の縦断面を示す図である。
上述した各装置については、内方部材と外方部材の間に複数の転動体が介装された形態の装置を例示して説明した。しかしながら、内方部材又は外方部材のうちの少なくとも1つの内部に空間10を形成し、さらに、空間強度保持機構20、外力吸収機構30又は潤滑剤供給機構40を有することを特徴とする本発明の適用範囲は、かかる転動体を用いたものには限られず、転動体を介さずに内方部材と外方部材とが直接接触して相対運動可能に構成される装置に対しても好適に用いることが可能である。
Claims (6)
- 外面に軌道面を有する内方部材と、
前記内方部材の軌道面に対向する軌道面を有して前記内方部材の外側に配置された外方部材と、
前記両軌道面間に転動自在に配置された転動体と、
を備える転動装置において、
前記内方部材および前記外方部材のうちの少なくとも1つが内部に空間を有して構成されていることを特徴とする転動装置。 - 請求項1に記載の転動装置において、
前記空間には、前記内方部材又は前記外方部材の強度を保持する空間強度保持機構が形成されていることを特徴とする転動装置。 - 請求項2に記載の転動装置において、
前記空間強度保持機構は、トラス構造、ラーメン構造又はハニカム構造であることを特徴とする転動装置。 - 請求項1に記載の転動装置において、
前記空間には、伸縮構造からなる外力吸収機構が形成されていることを特徴とする転動装置。 - 請求項1に記載の転動装置において、
前記空間には、前記転動体に潤滑剤を供給する潤滑剤供給機構が形成され、
前記潤滑剤供給機構は、
潤滑剤を保持する潤滑剤保持空間と、
前記潤滑剤保持空間と前記転動体が無負荷の状態で転走する無負荷転動体転走路とを接続する小径の孔と、を備え、
毛細管現象により前記潤滑剤保持空間から前記無負荷転動体転走路を転走する前記転動体に潤滑剤を供給することを特徴とする転動装置。 - 外面に軌道面を有する内方部材と、
前記内方部材の軌道面に対向する軌道面を有して前記内方部材の外側に配置された外方部材と、
前記両軌道面間に転動自在に配置された転動体と、
前記内方部材および前記外方部材のうちの少なくとも1つの内部に形成される空間と、
を備える転動装置を3Dプリンターにより製造することを特徴とする転動装置の製造方法。
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DE112015002623.1T DE112015002623T5 (de) | 2014-06-03 | 2015-06-01 | Rollvorrichtung und verfahren zur herstellung einer rollvorrichtung |
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US20170097042A1 (en) | 2017-04-06 |
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