JP2006017252A - Linear guide bearing device - Google Patents

Linear guide bearing device Download PDF

Info

Publication number
JP2006017252A
JP2006017252A JP2004196947A JP2004196947A JP2006017252A JP 2006017252 A JP2006017252 A JP 2006017252A JP 2004196947 A JP2004196947 A JP 2004196947A JP 2004196947 A JP2004196947 A JP 2004196947A JP 2006017252 A JP2006017252 A JP 2006017252A
Authority
JP
Japan
Prior art keywords
rolling
separator
groove
bearing device
rolling element
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.)
Withdrawn
Application number
JP2004196947A
Other languages
Japanese (ja)
Inventor
Uei Jo
▲うぇい▼ 徐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NSK Ltd
Original Assignee
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 JP2004196947A priority Critical patent/JP2006017252A/en
Publication of JP2006017252A publication Critical patent/JP2006017252A/en
Withdrawn legal-status Critical Current

Links

Images

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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/37—Loose spacing bodies
    • F16C33/3706—Loose spacing bodies with concave surfaces conforming to the shape of the rolling elements, e.g. the spacing bodies are in sliding contact with the rolling elements
    • 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
    • F16C29/0635—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
    • F16C29/065—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 rollers
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/37—Loose spacing bodies
    • F16C33/374—Loose spacing bodies resilient
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/66—Special parts or details in view of lubrication
    • F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
    • F16C33/664—Retaining the liquid in or near the bearing
    • F16C33/6651—Retaining the liquid in or near the bearing in recesses or cavities provided in retainers, races or rolling elements

Abstract

<P>PROBLEM TO BE SOLVED: To suppress pushing of rolling bodies to each other by sufficiently absorbing speed fluctuation due to route length fluctuation on circulation routes of the rolling bodies by means of a separator, and to improve operability by securing smooth revolution of the rolling bodies. <P>SOLUTION: This linear guide device has the separator 30 provided with a separator main body 31 interposed between the rolling bodies 6 adjacent to each other and arm parts 32 provided integrally with end parts in the groove width direction of a rolling body rolling groove of the rolling bodies 6 of the separator main body 31. The separator main body 31 of the separator 30 is divided along a direction approximately parallel with the groove width direction of the rolling body rolling groove, and each of divided parts 33 is connected with the arm parts 32. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、例えば工作機械や射出成形機等の産業機械分野等に用いられる直動案内軸受装置に関する。   The present invention relates to a linear motion guide bearing device used in an industrial machine field such as a machine tool or an injection molding machine.

従来のこの種の直動案内軸受装置としては、例えば図１１に示すものが知られている。 この直動案内軸受装置は、軸方向に延びる案内レール１と、該案内レール１上に軸方向に相対移動可能に跨架されたスライダ２とを備えており、案内レール１の幅方向の両側面にはそれぞれ軸方向に延びる転動体転動溝３が片側二条列ずつ、合計４条列形成されておいる。   As a conventional linear motion guide bearing device of this type, for example, the one shown in FIG. 11 is known. The linear motion guide bearing device includes a guide rail 1 extending in the axial direction and a slider 2 straddling the guide rail 1 so as to be relatively movable in the axial direction. On the surface, rolling element rolling grooves 3 extending in the axial direction are formed in two rows on one side, for a total of four rows.

スライダ２のスライダ本体２Ａには、その両袖部４の内側面にそれぞれ転動体転動溝３に対向する転動体転動溝５が形成されており、これらの両転動体転動溝３，５によって負荷軌道が形成されている。
負荷軌道には転動体としての多数の円筒ころ６が転動自在に装填され、これらの円筒ころ６の転動を介してスライダ２が案内レール１上を軸方向に沿って相対移動できるようになっている。 The slider body 2A of the slider 2 is formed with rolling element rolling grooves 5 opposed to the rolling element rolling grooves 3 on the inner side surfaces of both sleeve portions 4, respectively. A load track is formed by 5.
A large number of cylindrical rollers 6 as rolling elements are slidably loaded on the load track so that the slider 2 can relatively move along the axial direction on the guide rail 1 through the rolling of these cylindrical rollers 6. It has become.

この移動につれて、案内レール１とスライダ２との間に介在する円筒ころ６は転動してスライダ２の軸方向の端部に移動するが、スライダ２を軸方向に継続移動させていくためには、これらの円筒ころ６を無限に循環させる必要がある。
このため、スライダ本体２Ａの袖部４内に軸方向に貫通する孔７を形成して該孔７に内部が円筒ころ６の通路（転動体通路）８ａとされた循環スリーブ８を嵌め込むと共に、スライダ本体２Ａの軸方向の両端にそれぞれエンドキャップ９をねじ等を介して固定し、このエンドキャップ９に上記負荷軌道と上記転動体通路８ａとを連通する円弧状に湾曲した方向転換路（図示せず）を形成することにより、円筒ころ６の無限循環軌道を形成している。 Along with this movement, the cylindrical roller 6 interposed between the guide rail 1 and the slider 2 rolls and moves to the end of the slider 2 in the axial direction, but the slider 2 continues to move in the axial direction. Needs to circulate these cylindrical rollers 6 indefinitely.
For this reason, a hole 7 penetrating in the axial direction is formed in the sleeve portion 4 of the slider body 2A, and a circulation sleeve 8 whose inside is a passage (rolling member passage) 8a of the cylindrical roller 6 is fitted into the hole 7. The end caps 9 are fixed to both ends of the slider main body 2A in the axial direction by screws or the like, and the end caps 9 are connected to the end track 9 in a circular arc shape communicating with the load track and the rolling element passage 8a ( Infinite circulation track of the cylindrical roller 6 is formed by forming (not shown).

ところで、無限循環する多数の円筒ころ６はころ軸を中心に同一方向に回転するため、互いに隣り合う円筒ころ６同士が接触した場合、その接触部分のころ速度の向きは互いに逆方向になり、それにより発生する力は円筒ころ６の円滑な転動を妨げることになる。
このような事情から、従来においては、互いに隣り合う円筒ころ６間にセパレータ２０を介装することで、円筒ころ同士の直接接触を防止し、これにより、スライダ２の走行を滑らかにすると共に、走行中の騒音低減を図るようにしている。 By the way, since many cylindrical rollers 6 that circulate infinitely rotate in the same direction around the roller axis, when the cylindrical rollers 6 that are adjacent to each other come into contact with each other, the roller speed directions of the contact portions are opposite to each other, The force generated thereby prevents the cylindrical roller 6 from rolling smoothly.
Under such circumstances, conventionally, by interposing the separator 20 between the cylindrical rollers 6 adjacent to each other, direct contact between the cylindrical rollers is prevented, thereby making the running of the slider 2 smooth, It is designed to reduce noise while driving.

セパレータ２０は、図１２に示すように、互いに隣り合う円筒ころ６間に介装されるセパレータ本体２１と、該セパレータ本体２１の転動体転動溝３，５の溝幅方向の両端部に一体に設けられて円筒ころ６の軸方向の両端面を挟むように配置された腕部２２とを備えており、セパレータ本体２１の円筒ころ６の外周面に対向する部分には該円筒ころ６の外周形状に応じた凹曲面２１ａが形成されている。   As shown in FIG. 12, the separator 20 is integrated with the separator main body 21 interposed between the cylindrical rollers 6 adjacent to each other, and both ends of the rolling element rolling grooves 3 and 5 of the separator main body 21 in the groove width direction. And an arm portion 22 disposed so as to sandwich both end surfaces of the cylindrical roller 6 in the axial direction. A portion of the separator body 21 facing the outer peripheral surface of the cylindrical roller 6 is provided with the cylindrical roller 6. A concave curved surface 21a corresponding to the outer peripheral shape is formed.

なお、図１１において符号２３は、前記負荷軌道に沿って配置されて軸方向の両端部がエンドキャップ９に挿入されたセパレータ案内部材としての保持器である。
そして、両転動体転動溝３，５間の負荷軌道、方向転換路及び転動体通路８ａを円筒ころ６が循環する際には、セパレータ２０の腕部２２は、前記保持器２３、前記転動体通路８ａ及び前記方向転換路にそれぞれ設けられた案内溝２４によって円筒ころ６の循環方向に沿って案内されるようになっている。 In FIG. 11, reference numeral 23 denotes a cage as a separator guide member that is disposed along the load track and whose both end portions in the axial direction are inserted into the end cap 9.
When the cylindrical roller 6 circulates through the load track, the direction changing path and the rolling element passage 8a between the rolling elements rolling grooves 3 and 5, the arm portion 22 of the separator 20 is connected to the cage 23 and the rolling element. It is guided along the circulation direction of the cylindrical roller 6 by guide grooves 24 provided in the moving body passage 8a and the direction changing path, respectively.

上記従来の直動案内軸受装置においては、円筒ころ６の公転速度の違い等で円筒ころ６同士の押し合いが生じた場合、セパレータ２０のセパレータ本体２１は円筒ころ６との接触部における該セパレータ本体２１の材料自身の弾力範囲内でしか弾性変形しないため、セパレータ２０は円筒ころ６の循環経路上の経路長変動による速度変動を十分に吸収できず、そのため、円筒ころ６同士の押し合いが生じて円筒ころ６の公転がスムースに行えなくなり、作動性に問題が生じる可能性がある。
本発明はこのような不都合を解消するためになされたものであり、セパレータにより転動体の循環経路上の経路長変動による速度変動を十分に吸収して、転動体同士の押し合いを抑制し、これにより、転動体のスムースな公転を確保して作動性の向上を図ることができる直動案内軸受装置を提供することを目的とする。 In the conventional linear motion guide bearing device, when the cylindrical rollers 6 are pressed against each other due to a difference in revolution speed of the cylindrical rollers 6, the separator body 21 of the separator 20 is in contact with the cylindrical rollers 6. Since the material is elastically deformed only within the elastic range of the material 21 itself, the separator 20 cannot sufficiently absorb the speed fluctuation due to the path length fluctuation on the circulation path of the cylindrical roller 6, so that the cylindrical rollers 6 are pressed against each other. The revolution of the cylindrical roller 6 cannot be smoothly performed, and there is a possibility that a problem occurs in operability.
The present invention has been made to eliminate such inconvenience, and the separator sufficiently absorbs the speed fluctuation due to the path length fluctuation on the circulation path of the rolling elements, thereby suppressing the pressing between the rolling elements. Accordingly, an object of the present invention is to provide a linear motion guide bearing device that can ensure smooth revolving of a rolling element and improve operability.

上記目的を達成するために、請求項１に係る発明は、軸方向に延びる転動体転動溝を有する案内レールと、該案内レールの前記転動体転動溝に対向する転動体転動溝を有し、これらの両転動体転動溝の間に挿入された転動体の転動を介して軸方向に沿って相対移動可能に前記案内レールに跨架されたスライダと、互いに隣り合う前記転動体間に介装されたセパレータ本体及び該セパレータ本体の前記転動体転動溝の溝幅方向の端部に一体に設けられた腕部を有するセパレータとを備えた直動案内軸受装置であって、
前記セパレータの前記セパレータ本体を前記転動体転動溝の溝幅方向と略平行な方向に沿って分割し、該分割部分をそれぞれ前記腕部に連結したことを特徴とする。
請求項２に係る発明は、請求項１において、前記腕部に肉抜き部を設けたことを特徴とする。
請求項３に係る発明は、請求項２において、前記腕部を環状に形成したことを特徴とする。 To achieve the above object, the invention according to claim 1 includes a guide rail having a rolling element rolling groove extending in the axial direction, and a rolling element rolling groove facing the rolling element rolling groove of the guide rail. And a slider straddled on the guide rail so as to be relatively movable along the axial direction through rolling of the rolling elements inserted between the rolling grooves of both the rolling elements, and the rolling elements adjacent to each other. A linear motion guide bearing device comprising: a separator body interposed between moving bodies; and a separator having an arm portion integrally provided at an end of the separator body in the groove width direction of the rolling body rolling groove. ,
The separator main body of the separator is divided along a direction substantially parallel to the groove width direction of the rolling element rolling groove, and the divided portions are respectively connected to the arm portions.
According to a second aspect of the present invention, in the first aspect, the arm portion is provided with a lightening portion.
The invention according to claim 3 is characterized in that, in claim 2, the arm portion is formed in an annular shape.

本発明によれば、セパレータのセパレータ本体を転動体の転動体転動溝の溝幅方向と略平行な方向に沿って分割し、該分割部分をそれぞれ腕部に連結することで、セパレータ本体の前記分割部分を互いに離れる方向に弾性変形し易くすることができ、即ち、セパレータ本体を転動体の循環方向及び転動体転動溝の溝幅方向に対して略垂直方向に弾性変形し易くすることができる。   According to the present invention, the separator main body of the separator is divided along a direction substantially parallel to the groove width direction of the rolling element rolling groove of the rolling element, and the divided portions are connected to the arm portions, respectively. The divided portions can be easily elastically deformed in directions away from each other, that is, the separator body can be easily elastically deformed in a direction substantially perpendicular to the circulating direction of the rolling elements and the groove width direction of the rolling element rolling grooves. Can do.

これにより、転動体の循環経路上の経路長変動による速度変動を十分に吸収して、転動体同士の押し合いを抑制することができ、この結果、転動体のスムースな公転が確保されて作動性の向上を図ることができる。
また、セパレータ本体の各分割部分の間の空間が潤滑剤の溜まり部となるため、潤滑性能が向上して寿命延長を図ることができると共に、潤滑剤の吸収によるセパレータ本体の膨潤を抑制することも可能になる。 As a result, it is possible to sufficiently absorb the speed fluctuation due to the path length fluctuation on the circulation path of the rolling elements and suppress the pressing of the rolling elements, and as a result, the smooth revolution of the rolling elements is ensured and the operability is ensured. Can be improved.
In addition, since the space between the divided parts of the separator body serves as a reservoir for the lubricant, the lubrication performance can be improved and the life can be extended, and the swelling of the separator body due to the absorption of the lubricant can be suppressed. Is also possible.

更に、腕部に肉抜き部を設けるか、或いは腕部を環状に形成することで、セパレータ本体を転動体の循環方向及び転動体転動溝の溝幅方向に対して略垂直方向により弾性変形し易くすることができると共に、肉抜き部の肉抜き量或いは環状部の板厚を調整してセパレータ本体の弾性力を調整することができ、しかも腕部に潤滑剤の溜まり部を設けることができるので、潤滑性能の更なる向上を図ることができる。   Further, by providing a hollow portion on the arm portion or forming the arm portion in an annular shape, the separator body is elastically deformed in a direction substantially perpendicular to the circulating direction of the rolling element and the groove width direction of the rolling element rolling groove. It is possible to adjust the elastic force of the separator body by adjusting the thickness of the lightening part or the plate thickness of the annular part, and providing the arm with a lubricant reservoir. Therefore, the lubrication performance can be further improved.

以下、本発明の実施の形態の一例を図を参照して説明する。図１は本発明の実施の形態の一例である直動案内軸受装置に用いるセパレータを説明するための斜視図、図２（ａ）は図１のセパレータを円筒ころの軸方向端面側から見た図、図２（ｂ）は図２（ａ）の矢印Ａ方向から見た図、図２（ｃ）は図２（ｂ）の矢印Ｂ方向から見た図である。なお、この実施の形態では、既に図１１で説明した従来の直動案内軸受装置との相違点についてのみ説明し、図１１と重複する部材や相当する部材等については各図に同一符号を付して、その説明を省略する。   Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view for explaining a separator used in a linear guide bearing device as an example of an embodiment of the present invention, and FIG. 2A is a perspective view of the separator of FIG. 1 viewed from the axial end face side of a cylindrical roller. FIG. 2 and FIG. 2B are views seen from the direction of arrow A in FIG. 2A, and FIG. 2C is a view seen from the direction of arrow B in FIG. In this embodiment, only differences from the conventional linear motion guide bearing device already described with reference to FIG. 11 will be described, and the same reference numerals will be assigned to the respective members that are the same as those in FIG. Therefore, the description is omitted.

本発明の実施の形態の一例である直動案内軸受装置は、図１及び図２に示すように、セパレータ３０が、互いに隣り合う円筒ころ６間に介装されるセパレータ本体３１と、該セパレータ本体３１の転動体転動溝３，５の溝幅方向の両端部に一体に設けられて円筒ころ６の軸方向の両端面を挟むように配置された環状の腕部３２とを備えており、セパレータ本体３１の円筒ころ６の外周面に対向する部分には該円筒ころ６の外周形状に応じた凹曲面３１ａが形成されている。また、セパレータ本体３１は転動体転動溝３，５の溝幅方向と略平行な方向に沿って２つに分割されており、２つの分割部分３３はそれぞれ環状の腕部３２に連結されている。   As shown in FIGS. 1 and 2, a linear guide bearing device as an example of an embodiment of the present invention includes a separator body 31 in which a separator 30 is interposed between adjacent cylindrical rollers 6, and the separator And an annular arm portion 32 which is integrally provided at both end portions in the groove width direction of the rolling element rolling grooves 3 and 5 of the main body 31 and is arranged so as to sandwich both end surfaces in the axial direction of the cylindrical roller 6. A concave curved surface 31 a corresponding to the outer peripheral shape of the cylindrical roller 6 is formed at a portion of the separator body 31 that faces the outer peripheral surface of the cylindrical roller 6. The separator body 31 is divided into two parts along a direction substantially parallel to the groove width direction of the rolling element rolling grooves 3 and 5, and the two divided parts 33 are respectively connected to the annular arm part 32. Yes.

このようにこの実施の形態では、セパレータ３０のセパレータ本体３１を円筒ころ６の転動体転動溝３，５の溝幅方向と略平行な方向に沿って２つに分割して、該２つの分割部分３３をそれぞれ環状の腕部３２に連結しているので、セパレータ本体３１を円筒ころ６の循環方向及び転動体転動溝３，５の溝幅方向に対して略垂直方向（分割部分３３が互いに離れる方向）に弾性変形し易くすることができる。
これにより、円筒ころ６の循環経路上の経路長変動による速度変動を十分に吸収して、円筒ころ６同士の押し合いを抑制することができ、この結果、円筒ころ６のスムースな公転が確保されて作動性の向上を図ることができる。 Thus, in this embodiment, the separator body 31 of the separator 30 is divided into two along a direction substantially parallel to the groove width direction of the rolling element rolling grooves 3 and 5 of the cylindrical roller 6, and the two Since the divided portions 33 are respectively connected to the annular arm portions 32, the separator body 31 is arranged in a direction substantially perpendicular to the circulating direction of the cylindrical rollers 6 and the groove width direction of the rolling element rolling grooves 3 and 5 (the divided portions 33 Can be easily elastically deformed in a direction away from each other.
Thereby, the speed fluctuation | variation by the path | route length fluctuation | variation on the circulation path | route of the cylindrical roller 6 can fully be absorbed, and the pushing of cylindrical rollers 6 can be suppressed, As a result, the smooth revolution of the cylindrical roller 6 is ensured. Therefore, the operability can be improved.

また、セパレータ本体３１の各分割部分３３の間の空間３４及び腕部３２の内径空間を潤滑剤の溜まり部とすることができるため、円筒ころ６の転動面（外周面）及び端面の潤滑が良好に行われて寿命延長を図ることができると共に、潤滑剤の吸収によるセパレータ本体３１の膨潤を抑制することができる。
更に、腕部３２を環状に形成しているので、セパレータ本体３１の分割部分３３をより弾性変形し易くすることができると共に、環状部の板厚を調整することで、分割部分３３の弾性力を容易に調整することができる。 Further, since the space 34 between the divided portions 33 of the separator body 31 and the inner diameter space of the arm portion 32 can be used as a lubricant reservoir, the rolling surface (outer peripheral surface) and end surface of the cylindrical roller 6 can be lubricated. Can be carried out well and the life can be extended, and the swelling of the separator body 31 due to the absorption of the lubricant can be suppressed.
Furthermore, since the arm portion 32 is formed in an annular shape, the divided portion 33 of the separator body 31 can be more easily elastically deformed, and the elastic force of the divided portion 33 can be adjusted by adjusting the plate thickness of the annular portion. Can be adjusted easily.

図３及び図４はセパレータ本体３１の各分割部分３３の間の空間３４をより広くとって潤滑剤の溜まり量が多くなるようにした例で、図５及び図６は腕部３２の環状部の肉厚を薄くしてセパレータ本体３１の分割部分３３をより弾性変形し易くした例である。また、図７及び図８は図５及び図６の例に対してセパレータ本体３１の各分割部分３３の間の空間３４をより広くとって潤滑剤の溜まり量が多くなるようにした例である。   3 and 4 show an example in which the space 34 between the divided portions 33 of the separator main body 31 is made wider so that the amount of accumulated lubricant is increased. FIGS. 5 and 6 show the annular portion of the arm portion 32. This is an example in which the wall thickness of the separator is reduced to make the divided portion 33 of the separator body 31 more easily elastically deformed. 7 and 8 are examples in which the space 34 between the divided portions 33 of the separator main body 31 is made wider to increase the amount of accumulated lubricant compared to the examples of FIGS. 5 and 6. .

なお、本発明の直動案内軸受装置は上記実施の形態に限定されるものではなく、本発明の要旨を逸脱しない範囲において適宜変更可能である。
例えば、上記実施の形態では、転動体として円筒ころ６を用いた直動案内軸受装置に本発明を適用した場合を例に採ったが、これに代えて、図９及び図１０に示すように、転動体としてボールを用いた直動案内軸受装置に本発明を適用しても、上記同様の作用効果を得ることができる。 The linear guide bearing device of the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist of the present invention.
For example, in the above embodiment, the case where the present invention is applied to the linear motion guide bearing device using the cylindrical roller 6 as the rolling element is taken as an example, but instead, as shown in FIGS. Even if the present invention is applied to a linear guide bearing device using balls as rolling elements, the same effects as described above can be obtained.

図９に示すセパレータ４０は、互いに隣り合うボールＢ間に介装されるセパレータ本体４１と、該セパレータ本体４１のボールＢの転動体転動溝（図示せず）の溝幅方向の両端部に一体に設けられてボールＢの両側部を挟むように配置された環状の腕部４２とを備えており、セパレータ本体４１のボールＢの外周面に対向する部分には該ボールＢの外周形状に応じた凹球面４１ａが形成されている。また、セパレータ本体４１はボールＢの転動体転動溝の溝幅方向と略平行な方向に沿って２つに分割されており、２つの分割部分４３がそれぞれ環状の腕部４２に連結されている。   The separator 40 shown in FIG. 9 has a separator main body 41 interposed between adjacent balls B, and rolling element rolling grooves (not shown) of the balls B of the separator main body 41 at both ends in the groove width direction. And an annular arm portion 42 provided so as to sandwich both side portions of the ball B, and a portion of the separator body 41 facing the outer peripheral surface of the ball B has an outer peripheral shape of the ball B. A corresponding concave spherical surface 41a is formed. The separator body 41 is divided into two parts along a direction substantially parallel to the groove width direction of the rolling element rolling groove of the ball B, and the two divided parts 43 are respectively connected to the annular arm part 42. Yes.

図１０に示すセパレータ５０は、互いに隣り合うボールＢ間に介装されるセパレータ本体５１と、該セパレータ本体５１のボールＢの転動体転動溝（図示せず）の溝幅方向の両端部に一体に設けられてボールＢの両側部を挟むように配置された環状の腕部５２とを備えており、セパレータ本体５１のボールＢの外周面に対向する部分には該ボールＢの外周形状に応じた凹球面５１ａが形成されている。また、セパレータ本体５１はボールＢの転動体転動溝の溝幅方向と略平行な方向に沿ってボール中心部から偏心した位置で２つに分割されており、２つの分割部分５３，５４がそれぞれ環状の腕部５２に連結されている。   The separator 50 shown in FIG. 10 is provided at both ends of the separator main body 51 interposed between the adjacent balls B and the rolling body rolling grooves (not shown) of the balls B of the separator main body 51 in the groove width direction. And an annular arm portion 52 provided so as to sandwich both side portions of the ball B, and a portion of the separator body 51 facing the outer peripheral surface of the ball B has an outer peripheral shape of the ball B. A corresponding concave spherical surface 51a is formed. The separator body 51 is divided into two parts at a position eccentric from the center of the ball along a direction substantially parallel to the groove width direction of the rolling element rolling groove of the ball B, and the two divided parts 53 and 54 are divided into two parts. Each is connected to an annular arm portion 52.

また、上記各実施の形態では、腕部を環状に形成して環状部の肉厚を略一定とした場合を例に採ったが、必ずしもこのようにする必要はなく、腕部に所定形状の肉抜き部を設けて、肉厚が周方向で変わるようにしてもよい。この場合、肉抜き部の量を調整することで、セパレータ本体の分割部分の弾性力を容易に調整することができる。   Further, in each of the above embodiments, the case where the arm portion is formed in an annular shape and the thickness of the annular portion is made substantially constant is taken as an example, but it is not always necessary to do this, and the arm portion has a predetermined shape. A thinned portion may be provided so that the thickness changes in the circumferential direction. In this case, the elastic force of the divided portion of the separator body can be easily adjusted by adjusting the amount of the lightening portion.

本発明の実施の形態の一例である直動案内軸受装置に用いるセパレータを説明するための斜視図である。It is a perspective view for demonstrating the separator used for the linear guide bearing apparatus which is an example of embodiment of this invention. （ａ）は図１のセパレータを円筒ころの軸方向端面側から見た図、（ｂ）は（ａ）の矢印Ａ方向から見た図、（ｃ）は（ｂ）の矢印Ｂ方向から見た図である。(A) is a view of the separator of FIG. 1 viewed from the axial end face side of the cylindrical roller, (b) is a view of the separator viewed from the direction of arrow A in (a), and (c) is viewed from the direction of arrow B in (b). It is a figure. セパレータの変形例を説明するための斜視図である。It is a perspective view for demonstrating the modification of a separator. （ａ）は図３のセパレータを円筒ころの軸方向端面側から見た図、（ｂ）は（ａ）の矢印Ａ方向から見た図、（ｃ）は（ｂ）の矢印Ｂ方向から見た図である。3A is a view of the separator of FIG. 3 viewed from the axial end surface side of the cylindrical roller, FIG. 3B is a view of the separator viewed from the direction of arrow A in FIG. 3A, and FIG. It is a figure. セパレータの変形例を説明するための斜視図である。It is a perspective view for demonstrating the modification of a separator. （ａ）は図５のセパレータを円筒ころの軸方向端面側から見た図、（ｂ）は（ａ）の矢印Ａ方向から見た図、（ｃ）は（ｂ）の矢印Ｂ方向から見た図である。5A is a view of the separator of FIG. 5 viewed from the axial end face side of the cylindrical roller, FIG. 5B is a view of the separator viewed from the direction of arrow A in FIG. 5A, and FIG. It is a figure. セパレータの変形例を説明するための斜視図である。It is a perspective view for demonstrating the modification of a separator. （ａ）は図７のセパレータを円筒ころの軸方向端面側から見た図、（ｂ）は（ａ）の矢印Ａ方向から見た図、（ｃ）は（ｂ）の矢印Ｂ方向から見た図である。7A is a view of the separator of FIG. 7 viewed from the axial end face side of the cylindrical roller, FIG. 7B is a view of the separator viewed from the direction of arrow A in FIG. 7A, and FIG. It is a figure. 本発明の他の実施の形態である直動案内軸受装置に用いるセパレータを説明するための図で、（ａ）はセパレータをボールの転動体転動溝の溝幅方向から見た図、（ｂ）は（ａ）の矢印Ａ方向から見た図、（ｃ）は（ｂ）の矢印Ｂ方向から見た図である。It is a figure for demonstrating the separator used for the linear guide bearing apparatus which is other embodiment of this invention, (a) is the figure which looked at the separator from the groove width direction of the rolling element rolling groove of the ball | bowl, (b) ) Is a diagram viewed from the direction of arrow A in (a), and (c) is a diagram viewed from the direction of arrow B in (b). セパレータの変形例を説明するための図で、（ａ）はセパレータをボールの転動体転動溝の溝幅方向から見た図、（ｂ）は（ａ）の矢印Ａ方向から見た図、（ｃ）は（ｂ）の矢印Ｂ方向から見た図である。It is a figure for demonstrating the modification of a separator, (a) is the figure which looked at the separator from the groove width direction of the rolling element rolling groove of a ball | bowl, (b) is the figure seen from the arrow A direction of (a), (C) is the figure seen from the arrow B direction of (b). 直動案内軸受装置の一例を説明するための一部を破断した説明図である。It is explanatory drawing which fractured | ruptured one part for demonstrating an example of a linear guide bearing apparatus. 従来のセパレータを説明するための図で、（ａ）はセパレータを円筒ころの軸方向端面側から見た図、（ｂ）は（ａ）の矢印Ａ方向から見た図、（ｃ）は（ｂ）の矢印Ｂ方向から見た図である。It is a figure for demonstrating the conventional separator, (a) is the figure which looked at the separator from the axial direction end surface side of a cylindrical roller, (b) is the figure seen from the arrow A direction of (a), (c) is ( It is the figure seen from the arrow B direction of b).

符号の説明Explanation of symbols

１ 案内レール
２ スライダ
２Ａ スライダ本体
３ 転動体転動溝（案内レール側）
５ 転動体転動溝（スライダ側）
６ 円筒ころ（転動体）
３０ セパレータ
３１ セパレータ本体
３２ 腕部
３３ 分割部分 1 Guide rail 2 Slider 2A Slider body 3 Rolling element rolling groove (guide rail side)
5 Rolling element rolling groove (slider side)
6 Cylindrical rollers (rolling elements)
30 Separator 31 Separator body 32 Arm 33 Divided part

Claims (3)

軸方向に延びる転動体転動溝を有する案内レールと、該案内レールの前記転動体転動溝に対向する転動体転動溝を有し、これらの両転動体転動溝の間に挿入された転動体の転動を介して軸方向に沿って相対移動可能に前記案内レールに跨架されたスライダと、互いに隣り合う前記転動体間に介装されたセパレータ本体及び該セパレータ本体の前記転動体転動溝の溝幅方向の端部に一体に設けられた腕部を有するセパレータとを備えた直動案内軸受装置であって、
前記セパレータの前記セパレータ本体を前記転動体転動溝の溝幅方向と略平行な方向に沿って分割し、該分割部分をそれぞれ前記腕部に連結したことを特徴とする直動案内軸受装置。 A guide rail having rolling element rolling grooves extending in the axial direction, and a rolling element rolling groove facing the rolling element rolling groove of the guide rail, are inserted between these rolling element rolling grooves. A slider straddled on the guide rail so as to be relatively movable along the axial direction via rolling of the rolling elements, a separator body interposed between the rolling elements adjacent to each other, and the rolling of the separator body. A linear motion guide bearing device comprising a separator having an arm portion integrally provided at an end portion of the moving body rolling groove in the groove width direction,
The linear motion guide bearing device according to claim 1, wherein the separator body of the separator is divided along a direction substantially parallel to a groove width direction of the rolling element rolling groove, and the divided portions are respectively connected to the arm portions. 前記腕部に肉抜き部を設けたことを特徴とする請求項１に記載した直動案内軸受装置。   The linear motion guide bearing device according to claim 1, wherein a hollow portion is provided in the arm portion. 前記腕部を環状に形成したことを特徴とする請求項２に記載した直動案内軸受装置。   The linear guide bearing device according to claim 2, wherein the arm portion is formed in an annular shape.
JP2004196947A 2004-07-02 2004-07-02 Linear guide bearing device Withdrawn JP2006017252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004196947A JP2006017252A (en) 2004-07-02 2004-07-02 Linear guide bearing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004196947A JP2006017252A (en) 2004-07-02 2004-07-02 Linear guide bearing device

Publications (1)

Publication Number Publication Date
JP2006017252A true JP2006017252A (en) 2006-01-19

Family

ID=35791721

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004196947A Withdrawn JP2006017252A (en) 2004-07-02 2004-07-02 Linear guide bearing device

Country Status (1)

Country Link
JP (1) JP2006017252A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008286293A (en) * 2007-05-17 2008-11-27 Nsk Ltd Linear guide bearing device
CN106286587A (en) * 2016-08-31 2017-01-04 瓦房店正达冶金轧机轴承有限公司 A kind of annulus roller bearing with high radial bearing capacity

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008286293A (en) * 2007-05-17 2008-11-27 Nsk Ltd Linear guide bearing device
CN106286587A (en) * 2016-08-31 2017-01-04 瓦房店正达冶金轧机轴承有限公司 A kind of annulus roller bearing with high radial bearing capacity

Similar Documents

Publication Publication Date Title
KR20020021016A (en) Rolling element spacers for rolling guide units
JP2001193739A (en) Linear motion guide bearing device
JP4422646B2 (en) Rolling guide device in which a separator is disposed between rolling elements
JP4025563B2 (en) Linear motion guide unit with separator between rollers
TWI610031B (en) Rolling guide device
JP2006017252A (en) Linear guide bearing device
JP2006234032A (en) Linear guide bearing device
JP4093172B2 (en) Linear motion guide bearing device
JP4192479B2 (en) Linear motion device
JP2013002625A (en) Rolling guide device
JP2006046529A (en) Linear motion guide bearing device
JP2001132745A (en) Linearly moving rolling guide unit
JP2005207497A (en) Linear guide bearing device
JP4280376B2 (en) Linear motion rolling guide unit
JP2003239967A (en) Linear motion device
JP4488715B2 (en) Rolling guide unit
EP1138965A1 (en) Rolling element spacer in a rolling guide device and a rolling guide apparatus incorporating rolling element spacers
JP2004293783A (en) Direct acting guide bearing device
JP2023154360A (en) rolling bearing
JP2013122296A (en) Ball holding member, ball connector, and linear guide or ball screw device using them
JP5377847B2 (en) Exercise equipment
JP2004150587A (en) Spacer for linear motion device and linear motion device
JP2006125582A (en) Rolling element storing belt for linear guide device and linear guide device
JP2010190401A (en) Linear guide device
JP2005076677A (en) Direct acting device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070117

A761 Written withdrawal of application

Free format text: JAPANESE INTERMEDIATE CODE: A761

Effective date: 20080903