JPH08326748A - Lubrication structure of direct-acting rolling guide bearing - Google Patents
Lubrication structure of direct-acting rolling guide bearingInfo
- Publication number
- JPH08326748A JPH08326748A JP15560695A JP15560695A JPH08326748A JP H08326748 A JPH08326748 A JP H08326748A JP 15560695 A JP15560695 A JP 15560695A JP 15560695 A JP15560695 A JP 15560695A JP H08326748 A JPH08326748 A JP H08326748A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- lubricant
- raceway
- moving body
- gate
- 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.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 195
- 238000005461 lubrication Methods 0.000 title claims abstract description 35
- 239000000314 lubricant Substances 0.000 claims abstract description 143
- 230000001050 lubricating effect Effects 0.000 claims description 21
- 239000004519 grease Substances 0.000 description 28
- 238000003780 insertion Methods 0.000 description 19
- 230000037431 insertion Effects 0.000 description 19
- 239000003921 oil Substances 0.000 description 19
- 238000007789 sealing Methods 0.000 description 8
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 210000002445 nipple Anatomy 0.000 description 4
- 239000000428 dust Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000036544 posture Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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
- 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
- F16C29/0645—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 O-arrangement
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、軌道台と、その上を転
動体(ボール及び/又はローラ)の転動を介して移動す
る移動体とから成る直動転がり案内軸受の潤滑構造に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lubricating structure for a linear motion rolling guide bearing, which comprises a rail and a moving body which moves on the bearing via rolling of rolling elements (balls and / or rollers).
【0002】[0002]
【従来の技術】従来、この種の直動転がり案内軸受に
は、オイルやグリースのような潤滑剤を供給する潤滑構
造が組み込まれているものがある。2. Description of the Related Art Conventionally, some linear motion rolling guide bearings of this type incorporate a lubricating structure for supplying a lubricant such as oil or grease.
【0003】従来の潤滑構造には、例えば、次のような
ものがある。 (1) 実公平4−3126号公報の第6図に開示されてい
る潤滑構造。 この潤滑構造は、移動体の前後面に取り付けられたエン
ドキャップに転動体の転動方向を変換する方向転換路と
潤滑剤注入口とを連通して形成された潤滑剤供給溝か
ら、方向転換路内の転動体の配列(以下、「転動体列」
という。)に潤滑剤を供給するようになっている。 (2) 実公昭63−6506号公報、特に第5図に開示さ
れている潤滑構造。 この潤滑構造は、潤滑剤供給溝と潤滑剤供給口とから、
チューブ体の方向転換部内の転動体列に潤滑剤を供給す
るようになっている。潤滑剤供給溝は、チューブカバー
に潤滑剤注入口とチューブ体嵌合溝とを連通して形成さ
れている。潤滑剤供給口は、チューブ体の内周壁に設け
られている。しかし、これらの潤滑構造は、潤滑剤供給
溝に貯溜される潤滑剤の量が比較的少なく、潤滑剤を頻
繁に注入しなければならないという問題点を有してい
る。The conventional lubricating structure includes, for example, the following. (1) The lubricating structure disclosed in FIG. 6 of Japanese Utility Model Publication No. 4-3126. This lubrication structure changes the direction from the lubricant supply groove formed by connecting the direction change path that changes the rolling direction of the rolling element and the lubricant injection port to the end caps attached to the front and rear surfaces of the moving body. Array of rolling elements in the road (hereinafter referred to as "rolling element row")
Say. ) Is supplied with a lubricant. (2) Lubrication structure disclosed in Japanese Utility Model Publication No. 63-6506, particularly in FIG. This lubrication structure, from the lubricant supply groove and the lubricant supply port,
The lubricant is supplied to the rolling element rows in the direction changing portion of the tube body. The lubricant supply groove is formed in the tube cover by connecting the lubricant injection port and the tube body fitting groove. The lubricant supply port is provided on the inner peripheral wall of the tube body. However, these lubricating structures have a problem that the amount of the lubricant stored in the lubricant supply groove is relatively small and the lubricant must be frequently injected.
【0004】そこで、このような問題点に対処する潤滑
構造として、例えば、次のようなものがある。これらの
改良された潤滑構造は、何れも、潤滑剤溜を有し、潤滑
剤の注入回数が少なくて済むようになっている (1) 実公平4−3126号公報の第1図乃至第5図に開
示されている潤滑構造。 この潤滑構造は、エンドキャップの潤滑剤供給溝の途中
に潤滑剤溜が形成されており、潤滑剤の貯留量を多くし
ている。 (2) 実開平5−71443号公報に開示されている潤滑
構造。この潤滑構造は、エンドキャップに密閉状の潤滑
剤溜が形成され、この潤滑剤溜を転動体の方向変換路に
連通させて転動体に潤滑剤を供給するようになってい
る。Therefore, as a lubricating structure for dealing with such a problem, there is, for example, the following one. All of these improved lubrication structures have a lubricant reservoir so that the number of times of lubricant injection is small (1) FIGS. 1 to 5 of Japanese Utility Model Publication No. 4-3126. The lubrication structure disclosed in the figure. In this lubricating structure, a lubricant reservoir is formed in the middle of the lubricant supply groove of the end cap, and the amount of lubricant retained is increased. (2) The lubrication structure disclosed in Japanese Utility Model Laid-Open No. 5-71443. In this lubrication structure, a closed lubricant reservoir is formed in the end cap, and the lubricant reservoir is connected to the direction change path of the rolling element to supply the lubricant to the rolling element.
【0005】(3) 実公平6−19856号公報に開示さ
れている潤滑構造。 この潤滑構造は、軌道台上面と対向する移動体の内面に
形成された凹所を密封板で蓋して潤滑剤溜とし、密封板
に形成した潤滑剤の流出口より転動体列に潤滑剤を供給
するようになっている。 (4) 実開平1−174282号公報に開示されている潤
滑構造。 この潤滑構造は、ボール保持器に潤滑剤溜と給油孔とを
具え、この給油孔から転動体列へ潤滑剤を供給するよう
になっている。(3) The lubricating structure disclosed in Japanese Utility Model Publication No. 6-19856. In this lubrication structure, the recess formed on the inner surface of the moving body facing the upper surface of the raceway is covered with a sealing plate to serve as a lubricant reservoir, and the lubricant is discharged from the lubricant outlet formed on the sealing plate to the rolling element row. Are to be supplied. (4) The lubrication structure disclosed in Japanese Utility Model Publication No. 1-174282. In this lubrication structure, the ball cage is provided with a lubricant reservoir and an oil supply hole, and the lubricant is supplied from the oil supply hole to the rolling element train.
【0006】[0006]
【発明が解決しようとする課題】しかしながら、上記の
改良された各潤滑構造にも次の問題点がある。なお、直
動転がり案内軸受における転動体列への潤滑剤の給油
は、粘度の高いグリースを供給する場合と、グリースよ
り粘度の低い流動性のあるオイルを供給する場合とがあ
る。However, each of the above improved lubrication structures has the following problems. The lubrication of the rolling element rows in the linear motion rolling guide bearing may be performed by supplying grease with high viscosity or by supplying fluid oil with viscosity lower than that of grease.
【0007】(1) 実公平4−3126号公報に開示され
ている潤滑構造。 この潤滑構造は、直動転がり案内軸受を水平面に取り付
けてオイルを使用した場合には、潤滑剤溜からオイルが
円滑に流出し、オイルが行き渡るようになっている。し
かし、粘度の高いグリースを使用した場合には、潤滑剤
溜にグリースが貯溜されたままになっており、方向転換
路にグリースが確実に供給されないことがある。このた
め、グリースは、グリースガン等によって強制的に方向
転換路の転動体列へ供給されなければならない。さら
に、グリースは、経時変化により、劣化することがあ
り、定期的に交換しなければならない。(1) The lubricating structure disclosed in Japanese Utility Model Publication No. 4-3126. In this lubrication structure, when the linear motion rolling guide bearing is mounted on a horizontal surface and oil is used, the oil smoothly flows out from the lubricant reservoir and the oil is spread. However, when a highly viscous grease is used, the grease remains stored in the lubricant reservoir, and the grease may not be reliably supplied to the direction change path. For this reason, the grease must be forcibly supplied to the rolling element row of the direction changing path by a grease gun or the like. Furthermore, the grease may deteriorate with time and must be replaced regularly.
【0008】また、この潤滑構造は、図23に示すよう
に、直動転がり案内軸受200の軌道台202の幅方向
を上下方向に向けて軌道台202を垂直な被取付面Fに
水平にして取り付けた場合には、天側の方向転換路にオ
イルを供給することができない。なお、符号201は、
軌道台202上を紙面の表裏方向に直線往復移動する移
動体を示している。Further, in this lubrication structure, as shown in FIG. 23, the width direction of the raceway 202 of the linear motion rolling guide bearing 200 is oriented vertically so that the raceway 202 is horizontal to the vertical mounting surface F. When installed, oil cannot be supplied to the direction change path on the top side. The reference numeral 201 is
The figure shows a moving body that linearly reciprocates on the rail 202 in the front-back direction of the paper.
【0009】(2) 実開平5−71443号公報に開示さ
れている潤滑構造。 この潤滑構造も、実公平4−3126号公報に開示され
ている潤滑構造と同様に、粘度の高いグリースを使用し
た場合、方向転換路にグリースが確実に供給されない、
グリースをグリースガン等によって強制的に方向転換路
の転動体列へ供給しなければならない、グリースを定期
的に交換しなければならない等の問題点を有している。
また、この潤滑構造は、直動転がり案内軸受の軌道台の
幅方向を上下方向に向けて軌道台を垂直な被取付面に水
平にして取り付けた場合には、潤滑剤溜と方向転換路と
を連通する潤滑油供給路の位置よりオイル量が減少する
と、天地両側に位置する方向転換路にそれ以上のオイル
を供給することができない。(2) The lubricating structure disclosed in Japanese Utility Model Laid-Open No. 5-71443. This lubrication structure, like the lubrication structure disclosed in Japanese Utility Model Publication No. 4-3126, does not reliably supply the grease to the direction change path when grease with high viscosity is used.
There are problems that the grease must be forcibly supplied to the rolling element rows in the direction changing path by a grease gun or the like, and the grease must be replaced regularly.
In addition, this lubrication structure provides a lubricant reservoir and a direction change path when the raceway of the linear motion rolling guide bearing is installed with the widthwise direction facing up and down and the raceway horizontally on a vertical mounting surface. When the amount of oil decreases from the position of the lubricating oil supply passage communicating with the above, it is impossible to supply more oil to the direction change passages located on both sides of the top and bottom.
【0010】(3) 実公平6−19856号公報に開示さ
れた潤滑構造。 この潤滑構造も、実公平4−3126号公報に開示され
ている潤滑構造と同様に、粘度の高いグリースを使用し
た場合、方向転換路にグリースが確実に供給されない、
グリースをグリースガン等によって強制的に方向転換路
の転動体列へ供給しなければならない、グリースを定期
的に交換しなければならない等の問題点を有している。(3) The lubricating structure disclosed in Japanese Utility Model Publication No. 6-19856. This lubrication structure, like the lubrication structure disclosed in Japanese Utility Model Publication No. 4-3126, does not reliably supply the grease to the direction change path when grease with high viscosity is used.
There are problems that the grease must be forcibly supplied to the rolling element rows in the direction changing path by a grease gun or the like, and the grease must be replaced regularly.
【0011】さらに、この潤滑構造は、粘度の低い流動
性のあるオイルを使用したとしても、図24に示す背面
配置(DB)構造の直動転がり案内軸受200に組み込
んだ場合には、確実にオイルを行き渡せることができな
い。すなわち、軌道台202の軌道台側転動体転動面2
05と移動体201の移動体側転動体転動面204とに
挟持された転動体203の接触線L、Lが、軌道台の両
側に形成された軌道台側転動体転動面205,205に
対し軌道台202の外方で交わる、いわゆる背面配置
(DB)構造の直動転がり案内軸受200では、保持器
206を上下2条の移動体側転動体転動面204,20
4間に配設しなければならないため、上側の転動体列に
オイルを供給できても、下側の転動体列にはオイルを供
給することができない。Further, even if this lubricating structure uses low-viscosity fluid oil, when it is incorporated in the linear motion rolling guide bearing 200 of the rear surface arrangement (DB) structure shown in FIG. I cannot spread the oil. That is, the raceway side rolling element rolling surface 2 of the raceway 202
05 and the moving body side rolling element rolling surface 204 of the moving body 201, the contact lines L, L of the rolling element 203 are attached to the raceway side rolling element rolling surfaces 205, 205 formed on both sides of the raceway. On the other hand, in the linear motion rolling guide bearing 200 having a so-called rear surface arrangement (DB) structure that intersects with the outer side of the track 202, the cage 206 is provided with two upper and lower moving body side rolling element rolling surfaces 204, 20.
Since it must be arranged between the four rolling element rows, even if oil can be supplied to the upper rolling element row, oil cannot be supplied to the lower rolling element row.
【0012】(4) 実開平1−174282号公報に開示
されている潤滑構造。 この潤滑構造も、直動転がり案内軸受の軌道台の両側転
動溝を上下方向に向けて軌道台を垂直な被取付面に水平
に取り付けた場合には、天側の転動体列に潤滑剤を供給
することができない。また、この潤滑構造は、上記実公
平4−3126号公報に開示されている潤滑構造と同様
に、粘度の高いグリースを使用した場合、方向転換路に
グリースが確実に供給されない、グリースをグリースガ
ン等によって強制的に方向転換路の転動体列へ供給しな
ければならない、グリースを定期的に交換しなければな
らない等の問題点を有している。(4) The lubricating structure disclosed in Japanese Utility Model Publication No. 1-174282. This lubrication structure also applies lubricant to the rolling element row on the top side when the raceways are mounted horizontally on a vertical mounting surface with the rolling grooves on both sides of the raceway of the linear motion rolling guide bearing facing vertically. Can not be supplied. Further, this lubricating structure, like the lubricating structure disclosed in Japanese Utility Model Publication No. 4-3126, does not reliably supply grease to the direction changing path when grease with high viscosity is used. Therefore, there are problems such as the necessity of forcibly supplying to the rolling element row of the direction changing path and the need for regular replacement of grease.
【0013】本発明の目的は、従来より確実に潤滑剤を
供給することができ、潤滑剤を貯める容量が大きいとと
もに、取付け姿勢に係わりなく潤滑剤を供給することが
できる直動転がり案内軸受の潤滑構造を提供することに
ある。なお、以下の説明において、上下方向、幅方向等
の方向を示す用語は、直動転がり案内軸受の標準的取付
姿勢である、軌道台が水平に取付けられ、その上に跨が
るように軸受本体が配置される場合について言うものと
する。An object of the present invention is to provide a linear motion rolling guide bearing which can supply a lubricant more reliably than before, has a large capacity for storing the lubricant, and can supply the lubricant regardless of the mounting posture. To provide a lubrication structure. In the following description, the terms indicating directions such as the vertical direction and the width direction are the standard mounting postures of linear motion rolling guide bearings. It shall be said that the main body is arranged.
【0014】[0014]
【課題を解決するための手段】本発明は、両側面に転動
体転動面を有する軌道台と、該軌道台上に移動可能に跨
架されるとともに前記転動体転動面に対向する転動体転
動面を内側面に有し且つ該転動体転動面を含む無限循環
路が形成された移動体と、前記無限循環路を転動すると
ともに前記対向する両転動体転動面内で負荷を支承する
多数の転動体と、前記移動体の下端面に取付けられ該移
動体と前記軌道台の側面との上下方向隙間を封じるアン
ダーシールとを具えた直動転がり案内軸受において、前
記移動体の移動方向両端に、前記軌道台に遊嵌される門
形状部材と、該門形状部材と前記軌道台外面との移動方
向隙間を封じる前後シールと、前記門形状部材と前記軌
道台側面との上下方向隙間を封じる上下方向シールとが
装着され、前記軌道台外面と対向する前記門形状部材の
内面と、前記前後シールと、前記上下方向シールと、前
記軌道台外面とから成る空間を潤滑剤溜としたことを特
徴とする直動転がり案内軸受の潤滑構造により、前記の
課題を解決した。According to the present invention, there is provided a raceway having rolling element rolling surfaces on both side surfaces, and a rolling element which is movably supported on the raceway and which opposes the rolling element rolling surface. A moving body having a moving body rolling surface on its inner side surface and in which an endless circulation path including the rolling body rolling surface is formed; and both rolling body rolling surfaces that face each other while rolling along the endless circulation path. In a linear motion rolling guide bearing having a large number of rolling elements that support a load and an under seal that is attached to the lower end surface of the moving body and seals the vertical gap between the moving body and the side surface of the raceway, At both ends in the moving direction of the body, a gate-shaped member that is loosely fitted to the raceway, front and rear seals that seal a gap in the moving direction between the gate-shaped member and the outer surface of the raceway, the gate-shaped member and the side surface of the raceway. And a vertical seal that seals the vertical gap of the Lubrication of a linear motion rolling guide bearing, characterized in that a space consisting of the inner surface of the gate-shaped member facing the outer surface of the stand, the front and rear seals, the vertical seal, and the outer surface of the raceway is used as a lubricant reservoir. The structure solves the above problems.
【0015】[0015]
【作用】軌道台外面と対向する門形状部材の内面と、前
後シールと、上下方向シールと、軌道台外面とから空間
が形成されるが、この空間は、移動体の移動方向の前後
面に存在しており、潤滑剤溜として利用される。この潤
滑剤溜は、移動体の移動方向前後面に設けられており、
従来の潤滑剤溜より大きく形成され、大量の潤滑剤を貯
溜することができる。A space is formed by the inner surface of the gate-shaped member facing the outer surface of the way, the front and rear seals, the vertical seal, and the outer surface of the way. The space is formed on the front and rear surfaces in the moving direction of the moving body. It exists and is used as a lubricant reservoir. This lubricant reservoir is provided on the front and rear surfaces of the moving body in the moving direction,
It is larger than the conventional lubricant reservoir and can store a large amount of lubricant.
【0016】潤滑剤溜としての空間は、移動体が軌道台
上を移動しても常に確保されており、潤滑剤溜に貯溜さ
れている潤滑剤は軌道台側転動体転動面に、常時、接触
している。移動体の移動にともなって、転動体が軌道台
側転動体転動面と移動体側転動体転動面とを転動する。
転動体が軌道台側転動体転動面上を転動すると、その転
動体転動面上に付着した潤滑剤は転動体に転写され、さ
らに、転動体から移動体の転動体転動面にも転写される
ことになる。The space as the lubricant reservoir is always ensured even when the moving body moves on the raceway, and the lubricant accumulated in the lubricant reservoir is always kept on the raceway side rolling element rolling surface. , Are in contact. Along with the movement of the moving body, the rolling element rolls on the raceway side rolling element rolling surface and the moving body side rolling element rolling surface.
When the rolling element rolls on the rolling element side rolling element rolling surface, the lubricant adhering to the rolling element rolling surface is transferred to the rolling element, and further, from the rolling element to the rolling element rolling surface of the moving element. Will also be transcribed.
【0017】転動体は多数あるが、全ての転動体が軌道
台側転動体転動面上を転動するので、全ての転動体に潤
滑剤が転写される。従って、潤滑剤の種類や直動転がり
案内軸受の構造に制限されずに、潤滑剤が確実に行き渡
る。例えば、粘度の高いグリースのような潤滑剤であっ
ても、確実に行き渡る。Although there are many rolling elements, all the rolling elements roll on the rolling surface of the raceway side rolling element, so that the lubricant is transferred to all the rolling elements. Therefore, the lubricant is reliably spread without being limited to the type of the lubricant or the structure of the linear motion rolling guide bearing. For example, even a lubricant such as high-viscosity grease can surely spread.
【0018】なお、好ましい実施態様として、第1に、
前記移動体には、潤滑剤供給口を含む幅方向潤滑剤供給
孔と、該幅方向潤滑剤供給孔と連通する貫通孔としての
移動方向潤滑剤供給孔とが形成され、前記門形状部材に
設けた前記移動体の移動方向潤滑剤供給孔と連通する潤
滑剤排出孔が前記空間に連通しているもの、第2に、、
前記潤滑剤排出孔の潤滑剤排出口が、前記軌道台の転動
体転動面の幅方向外側に位置するように形成されている
もの、そして、第3に、前記移動体の前記潤滑剤供給口
を含む幅方向潤滑剤供給孔と、該幅方向潤滑剤供給孔と
連通する貫通孔としての移動方向潤滑剤供給孔と、前記
門形状部材に設けた前記移動体の移動方向潤滑剤供給孔
と連通する潤滑剤排出孔が、直動転がり案内軸受の移動
方向に対して幅方向に一対設けられており、直動転がり
案内軸受の取付姿勢に応じて、地側に位置する前記潤滑
剤排出口が閉塞されているもの、がある。As a preferred embodiment, firstly,
A width direction lubricant supply hole including a lubricant supply port and a movement direction lubricant supply hole as a through hole communicating with the width direction lubricant supply hole are formed in the moving body, and the gate-shaped member is formed. A lubricant discharge hole communicating with a lubricant supply hole provided in the moving direction of the movable body, which communicates with the space, and secondly,
The lubricant discharge port of the lubricant discharge hole is formed so as to be positioned on the outer side in the width direction of the rolling element rolling surface of the raceway, and thirdly, the lubricant supply of the moving body. A width direction lubricant supply hole including a port, a movement direction lubricant supply hole as a through hole communicating with the width direction lubricant supply hole, and a movement direction lubricant supply hole of the moving body provided in the gate-shaped member A pair of lubricant discharge holes communicating with the linear motion rolling guide bearing are provided in the width direction with respect to the moving direction of the linear motion rolling guide bearing. Some have blocked outlets.
【0019】[0019]
【実施例】以下、本発明の実施例を図1乃至図22に基
づいて説明する。なお、本実施例の潤滑構造は、例え
ば、図1、図4及び図9に示すように、転動体としてボ
ール36を使用し、ボール36の方向転換路69,7
0,71,72をエンドキャップ35に形成した、いわ
ゆるエンドキャップ式直動転がり案内軸受に好適な構成
になっている。Embodiments of the present invention will be described below with reference to FIGS. The lubrication structure of the present embodiment uses balls 36 as rolling elements and, as shown in FIG. 1, FIG. 4 and FIG.
The structure is suitable for a so-called end cap type linear motion rolling guide bearing in which 0, 71 and 72 are formed in the end cap 35.
【0020】直動転がり案内軸受31について説明す
る。直動転がり案内軸受31は、主として、長尺な軌道
台33と、この軌道台33上に多数のボール36によっ
て移動可能に跨架された移動体32とで構成されてい
る。軌道台33の長手方向の両側面には上下2条の軌道
台側ボール転動面(軌道台側転動体転動面)45,4
6,47,48が形成されている。移動体32は、軸受
本体34と一対のエンドキャップ35,35とで構成さ
れている。The linear motion rolling guide bearing 31 will be described. The linear motion rolling guide bearing 31 is mainly composed of a long raceway 33 and a moving body 32 movably supported on the raceway 33 by a large number of balls 36. On both sides in the longitudinal direction of the raceway 33, there are two upper and lower raceway side ball rolling surfaces (raceway side rolling element rolling surfaces) 45, 4
6, 47, 48 are formed. The moving body 32 includes a bearing main body 34 and a pair of end caps 35, 35.
【0021】図5及び図6に示すように、軸受本体34
の左右脚部49,50の内側面には、軌道台33の軌道
台側ボール転動面45,46,47,48に各々対向す
る移動体側ボール転動面(移動体側転動体転動面)5
1,52,53,54が形成されている。軌道台33の
軌道台側ボール転動面45,46,47,48と軸受本
体34の移動体側ボール転動面51,52,53,54
との間に、多数のボール36が挿填されている。As shown in FIGS. 5 and 6, the bearing body 34
On the inner side surfaces of the left and right leg portions 49, 50 of the moving body side ball rolling surface (moving body side rolling body rolling surface) respectively facing the raceway side ball rolling surfaces 45, 46, 47, 48 of the raceway 33. 5
1, 52, 53, 54 are formed. Raceway side ball rolling surfaces 45, 46, 47, 48 of the raceway 33 and moving body side ball rolling surfaces 51, 52, 53, 54 of the bearing body 34.
A large number of balls 36 are inserted between and.
【0022】なお、本実施例の直動転がり案内軸受31
は、軌道台33の軌道台側ボール転動面45,46,4
7,48と軸受本体34の移動体側ボール転動面51,
52,53,54とに挟持されたボール36の接触線
が、軌道台33のボール転動面45,46,47,48
に対し軌道台33の外方で略々直角に交わる、背面配置
(DB)構造になっている(図示省略)。このため、直
動転がり案内軸受31は、軸受本体34に作用する上下
左右方向からの負荷に対して同一定格荷重になると共
に、モーメント荷重に対しても安定した構造になってい
る。The linear motion rolling guide bearing 31 of this embodiment is used.
Is the raceway side ball rolling surfaces 45, 46, 4 of the raceway 33.
7, 48 and the moving body side ball rolling surface 51 of the bearing body 34,
The contact line of the ball 36 sandwiched between the balls 52, 53, 54 is the ball rolling surfaces 45, 46, 47, 48 of the raceway 33.
On the other hand, it has a rear surface arrangement (DB) structure (not shown) that intersects with the rail 33 at a substantially right angle. Therefore, the linear motion rolling guide bearing 31 has the same rated load with respect to the load acting on the bearing body 34 from the vertical and horizontal directions, and also has a structure that is stable with respect to the moment load.
【0023】移動体32の構成を図4乃至図6に基づい
て説明する。移動体32は前述のように、軸受本体34
と、その移動方向両端面に固着されるエンドキャップ3
5,35とで構成されている。軸受本体34には、その
左右脚部49,50の内側面に、軌道台33の軌道台側
ボール転動面45,46,47,48に対向する移動体
側ボール転動面51,52,53,54が形成されてい
る。The structure of the moving body 32 will be described with reference to FIGS. As described above, the moving body 32 has the bearing main body 34.
And the end caps 3 fixed to both end faces in the moving direction.
5, 35. In the bearing main body 34, on the inner side surfaces of the left and right leg portions 49, 50, the moving body side ball rolling surfaces 51, 52, 53 facing the raceway side ball rolling surfaces 45, 46, 47, 48 of the raceway 33. , 54 are formed.
【0024】また、左右の脚部49,50の厚肉部内に
は、移動体側ボール転動面51,52,53,54に各
々対応するボール戻り通路55,56,57,58が形
成されている。ボール戻り通路55,56,57,58
は貫通孔である。なお、符号59,60,61,62
は、エンドキャップ35(図1参照)、後述の門形状部
材38及び前後シール体39を軸受本体34の移動方向
両端に固着するためのねじ孔を示している。Ball return passages 55, 56, 57, 58 corresponding to the moving body side ball rolling surfaces 51, 52, 53, 54 are formed in the thick portions of the left and right legs 49, 50. There is. Ball return passages 55, 56, 57, 58
Is a through hole. Incidentally, reference numerals 59, 60, 61, 62
Shows screw holes for fixing the end cap 35 (see FIG. 1), a gate-shaped member 38 and a front and rear seal body 39, which will be described later, to both ends of the bearing body 34 in the moving direction.
【0025】図8乃至図10に示すように、エンドキャ
ップ35には、エンドキャップ35並びに門形状部材3
8及び前後シール体39を軸受本体34の移動方向両端
に固着するためのねじ挿通孔65,66,67,68が
形成されている。また、エンドキャップ35の背面に
は、軸受本体34の移動体側ボール転動面51,52,
53,54とこれに各々対応するボール戻り通路55,
56,57,58とを連通連結するU字状方向転換路6
9,70,71,72(図9参照)が形成されている。
軌道台側ボール転動面45,46,47,48、移動体
側ボール転動面51,52,53,54、ボール戻り通
路55,56,57,58、U字状方向転換路69,7
0,71,72(図9参照)によって、ボール36の循
環路207(図4参照)が形成されている。As shown in FIGS. 8 to 10, the end cap 35 includes the end cap 35 and the gate-shaped member 3.
8 and the front and rear seal bodies 39 are provided with screw insertion holes 65, 66, 67, 68 for fixing the both ends in the moving direction of the bearing body 34. Further, on the back surface of the end cap 35, the moving body side ball rolling surfaces 51, 52,
53, 54 and ball return passages 55, 54,
U-shaped turning path 6 for connecting 56, 57 and 58 to each other
9, 70, 71, 72 (see FIG. 9) are formed.
Track side ball rolling surfaces 45, 46, 47, 48, moving body side ball rolling surfaces 51, 52, 53, 54, ball return passages 55, 56, 57, 58, U-shaped direction changing passages 69, 7
A circulation path 207 (see FIG. 4) of the ball 36 is formed by 0, 71, 72 (see FIG. 9).
【0026】軸受本体34のねじ孔59,60(図5参
照)の入口には、さらに、環状凹部63,64が形成さ
れている。エンドキャップ35(図10参照)のねじ挿
通孔65,66の背面側には、この環状凹部63,64
に嵌合する環状凸部73,74が形成されている。環状
凹部63,64と環状凸部73,74とが嵌合すること
により、エンドキャップ35と軸受本体34との間の位
置決めが行われる。Annular recesses 63 and 64 are further formed at the entrances of the screw holes 59 and 60 (see FIG. 5) of the bearing body 34. The annular recesses 63, 64 are provided on the back side of the screw insertion holes 65, 66 of the end cap 35 (see FIG. 10).
The annular protrusions 73 and 74 are formed so as to be fitted in. By fitting the annular recesses 63, 64 and the annular protrusions 73, 74, the positioning between the end cap 35 and the bearing body 34 is performed.
【0027】エンドキャップ35(図8参照)に設けた
凹部77,77は、図13に示すアンダーシール37を
移動体32に嵌着するために、アンダーシール37の前
後部78,78を受け入れるべく形成された凹所であ
る。アンダーシール37の下部79,80は、軸受本体
34(図5参照)の下端面に設けた移動方向切欠82
と、エンドキャップ35(図8参照)の下端面に設けた
移動方向切欠83とに夫々嵌合する。そして、アンダー
シール37(図4、図13参照)のリップ部81が軌道
台33の側面に摺接することにより、移動体32と軌道
台33の側面の上下方向隙間が封じられる。The recesses 77, 77 provided in the end cap 35 (see FIG. 8) receive the front and rear portions 78, 78 of the under seal 37 for fitting the under seal 37 shown in FIG. 13 to the moving body 32. It is a formed recess. The lower portions 79 and 80 of the underseal 37 are provided with notches 82 in the moving direction provided on the lower end surface of the bearing body 34 (see FIG. 5).
And the moving direction notches 83 provided on the lower end surface of the end cap 35 (see FIG. 8). Then, the lip portion 81 of the underseal 37 (see FIGS. 4 and 13) is brought into sliding contact with the side surface of the track way 33, whereby the vertical gap between the moving body 32 and the side surface of the track way 33 is sealed.
【0028】図2、図4乃至図7に示されるように、軸
受本体34には、幅方向潤滑剤供給孔84、及びこの幅
方向潤滑剤供給孔84に直交して連通する貫通孔として
の移動方向潤滑剤供給孔87,88が形成されている。
また、エンドキャップ35にも、図2、図4乃至図7に
示されるように、軸受本体34の移動方向潤滑剤供給孔
87,88と連通する貫通孔89,90(図2参照)が
形成されている。As shown in FIGS. 2 and 4 to 7, the bearing main body 34 has a widthwise lubricant supply hole 84 and a through hole which communicates at right angles with the widthwise lubricant supply hole 84. Moving direction lubricant supply holes 87 and 88 are formed.
As shown in FIGS. 2 and 4 to 7, the end cap 35 also has through holes 89 and 90 (see FIG. 2) communicating with the moving direction lubricant supply holes 87 and 88 of the bearing body 34. Has been done.
【0029】軸受本体34の両側面に設けたねじ孔(潤
滑剤注入口)85,86に螺合された潤滑剤ニップル9
1,91から注入されるグリース、オイル等の潤滑剤
は、軸受本体34の幅方向潤滑剤供給孔84、移動方向
潤滑剤供給孔87,88、及びエンドキャップ35の貫
通孔89,90を通過して、後述の門形状部材38に設
けた移動方向潤滑剤供給孔97,98に供給される。な
お、本実施例では、ねじ孔85,86を両側面に設けた
が、一方の側面だけに設けてもよいし、ねじ孔85,8
6の何れか一方を埋栓してもよい。The lubricant nipple 9 screwed into screw holes (lubricant injection ports) 85 and 86 provided on both sides of the bearing body 34.
Lubricants such as grease and oil injected from 1, 91 pass through the width direction lubricant supply hole 84 of the bearing body 34, the movement direction lubricant supply holes 87, 88, and the through holes 89, 90 of the end cap 35. Then, the lubricant is supplied to the moving direction lubricant supply holes 97 and 98 provided in the gate-shaped member 38 described later. Although the screw holes 85 and 86 are provided on both side surfaces in this embodiment, they may be provided on only one side surface, or the screw holes 85 and 8 may be provided.
Either one of 6 may be plugged.
【0030】移動体32の組立方法を説明する。軸受本
体34の左右脚部49,50の上下2条の移動体側ボー
ル転動面51,52,53,54の中間に沿って、図1
2に示されるボールリテーナ92を嵌着する。このボー
ルリテーナ92には、ボール36の脱落を防止するリテ
ーナ部93の両端部に、エンドキャップ35の位置決め
用溝76(図9参照)に嵌合する位置決め用突起94
(図12参照)と、この突起94の先端にエンドキャッ
プ35の嵌合溝75に嵌合するほぼ半円状のボールリタ
ーンガイド95とが一体的に形成されている。A method of assembling the moving body 32 will be described. 1 along the middle of the two upper and lower moving body side ball rolling surfaces 51, 52, 53, 54 of the left and right leg portions 49, 50 of the bearing body 34.
The ball retainer 92 shown in 2 is fitted. In this ball retainer 92, a positioning projection 94 that fits into a positioning groove 76 (see FIG. 9) of the end cap 35 is provided at both ends of a retainer portion 93 that prevents the balls 36 from falling off.
(See FIG. 12), and a substantially semicircular ball return guide 95 that fits into the fitting groove 75 of the end cap 35 is integrally formed at the tip of the protrusion 94.
【0031】軸受本体34の環状凹部63,64(図5
参照)とエンドキャップ35の環状凸部73,74(図
10参照)、ボールリテーナ92の位置決め用突起94
とエンドキャップ35の位置決め用溝76(図9参
照)、及びボールリテーナ92のボールリターンガイド
95とエンドキャップ35の嵌合溝75を夫々嵌合さ
せ、エンドキャップ35を軸受本体34の一端に固定す
る。The annular recesses 63, 64 of the bearing body 34 (see FIG. 5)
(See FIG. 10), the annular projections 73 and 74 (see FIG. 10) of the end cap 35, and the positioning projection 94 of the ball retainer 92.
And the positioning groove 76 (see FIG. 9) of the end cap 35, and the ball return guide 95 of the ball retainer 92 and the fitting groove 75 of the end cap 35 are fitted together to fix the end cap 35 to one end of the bearing body 34. To do.
【0032】次に、移動体側ボール転動面51,52,
53,54とボールリテーナ92との間、及びボール戻
り通路であるボール戻り通路55,56,57,58に
ボール36を他端側から規定の個数だけ装填する。その
後、エンドキャップ35を前記同様に軸受本体34の他
端に固定する。そして、一対のアンダーシール37,3
7を移動体32に嵌着する。最後に、潤滑剤ニップル9
1,91を軸受本体34の両側面に設けたねじ孔85,
86に螺合させ、移動体32の組立が完了する。Next, the ball rolling surfaces 51, 52,
A prescribed number of balls 36 are loaded from the other end side between the ball retainers 92 and 53, 54 and in the ball return passages 55, 56, 57, 58 which are the ball return passages. Then, the end cap 35 is fixed to the other end of the bearing body 34 in the same manner as described above. And a pair of under seals 37, 3
7 is attached to the moving body 32. Finally, the lubricant nipple 9
1, 91 are screw holes 85 provided on both side surfaces of the bearing body 34,
The assembly of the moving body 32 is completed by screwing it into 86.
【0033】潤滑構造について説明する。図1乃至図3
に示すように、潤滑構造は、主として、軌道台33に遊
嵌される門形状部材38と、この門形状部材38と軌道
台33の外面との間の隙間を封じる前後シール体39
と、門形状部材38と軌道台33の外面との上下方向隙
間を封じる上下方向シール体96とで構成され、移動体
32の移動方向の前後に組み込まれている。そして、図
22に示されるように、軌道台33の外面と対向する門
形状部材38の内面と、前後シール体39と、上下方向
シール体96と、軌道台33の外面とに囲まれて形成さ
れた空間112に潤滑剤113が貯溜される。The lubrication structure will be described. 1 to 3
As shown in FIG. 5, the lubrication structure is mainly composed of a gate-shaped member 38 loosely fitted to the raceway 33, and a front-rear seal body 39 for sealing a gap between the gate-shaped member 38 and the outer surface of the raceway 33.
And a vertical seal body 96 that seals a vertical gap between the gate-shaped member 38 and the outer surface of the raceway 33, and is installed before and after the moving body 32 in the moving direction. Then, as shown in FIG. 22, it is formed by being surrounded by the inner surface of the gate-shaped member 38 facing the outer surface of the track way 33, the front-rear seal body 39, the vertical seal body 96, and the outer surface of the way way 33. The lubricant 113 is stored in the created space 112.
【0034】図17乃至図19に示すように、門形状部
材38には、エンドキャップ35の貫通孔89,90
(図2、図8参照)と連通し、且つ門形状部材38の内
面に開口する移動方向潤滑剤供給孔97,98が形成さ
れている。門形状部材38の内面に開口する潤滑剤供給
口99,100は、軌道台33のボール転動面45,4
6,47,48より幅方向外側に位置するように形成さ
れたねじ孔である。また、門形状部材38には、深座ぐ
り孔101,102、ねじ挿通孔103,104、及
び、ねじ孔105,106,107,108が形成され
ている。As shown in FIGS. 17 to 19, the gate-shaped member 38 has through holes 89, 90 of the end cap 35.
(See FIGS. 2 and 8) and moving direction lubricant supply holes 97 and 98 are formed which are open to the inner surface of the gate-shaped member 38. The lubricant supply ports 99 and 100 opened on the inner surface of the gate-shaped member 38 are provided on the ball rolling surfaces 45 and 4 of the raceway 33.
6, 47 and 48 are screw holes formed so as to be located on the outer side in the width direction. Further, the gate-shaped member 38 is formed with deep counterbore holes 101, 102, screw insertion holes 103, 104, and screw holes 105, 106, 107, 108.
【0035】図1に示すように、前後シール体39は、
所定の厚みの柔らかいフェルトシール41を、金属製前
後プレート40と前後シール42とで挟持した構成にな
っている。前後プレート40の内側は、軌道台33に遊
嵌できるように形成されている。また、前後プレート4
0の下端面には軸方向切欠115が形成されており、こ
の切欠115にサイド上下方向シール44の一部分が嵌
合するようになっている。フェルトシール41及び前後
シール42は、軌道台33の外面輪郭と相補い合うよう
な形状に形成されており、門形状部材38と軌道台33
の外面との間の隙間を封じている。なお、前後シール4
2の内周には、軌道台33の外面に摺接するリップ部1
16が形成されている。As shown in FIG. 1, the front and rear seal bodies 39 are
A soft felt seal 41 having a predetermined thickness is sandwiched between a metal front and rear plate 40 and a front and rear seal 42. The inner sides of the front and rear plates 40 are formed so that they can be loosely fitted on the track 33. Also, front and rear plates 4
An axial notch 115 is formed in the lower end surface of 0, and a part of the side vertical seal 44 is fitted in the notch 115. The felt seal 41 and the front-rear seal 42 are formed in a shape that complements the outer surface contour of the raceway 33, and the gate-shaped member 38 and the raceway 33.
Seals the gap between the outer surface of the. In addition, front and rear seal 4
At the inner circumference of 2, the lip portion 1 that is in sliding contact with the outer surface of the track 33
16 are formed.
【0036】移動体端部のシール構造を二重にする理由
を説明する。従来の前後シール42だけでは、軌道台3
3の外面と摺接するリップ部116が摩耗すると(塵埃
の多い雰囲気中では、特に、摩耗し易い)、空間112
に貯溜された潤滑剤が漏出したり、軌道台33の外面に
付着した塵埃が空間112に侵入する恐れがある。そこ
で、軌道台33の外面に対して摺接面積の大きいフェル
トシール41と、前後シール42とを共用して、上記の
問題を解決している。なお、前後プレート40、フェル
トシール41、及び前後シール42には、各々、ねじ挿
通孔117,118,119,120,121,122
が形成されている。The reason why the sealing structure at the end of the moving body is doubled will be described. With the conventional front and rear seals 42 alone,
When the lip portion 116 that is in sliding contact with the outer surface of No. 3 wears (especially in a dusty atmosphere, it easily wears), the space 112
There is a risk that the lubricant stored in the space will leak or dust adhering to the outer surface of the track 33 will enter the space 112. Therefore, the felt seal 41, which has a large sliding contact area with the outer surface of the track 33, and the front and rear seals 42 are commonly used to solve the above problem. The front and rear plates 40, the felt seal 41, and the front and rear seals 42 have screw insertion holes 117, 118, 119, 120, 121, 122, respectively.
Are formed.
【0037】上下方向シール体96は、プレート43と
上下方向シール44とで構成されている。プレート43
は金属製で、図20に示すように、止めねじ125,1
25(図1参照)が挿通するねじ挿通孔109,109
と、止めねじ126,126を用いて上下方向シール4
4をプレート43に取り付けるためのねじ孔110,1
10とが形成されている。上下方向シール44は合成樹
脂製であり、図3に示すように、その端面が軌道台33
の側面と摺接するように軸受本体34に取り付けられて
いる。なお、図21の符号111は、止めねじ126が
挿通するねじ挿通孔を示している。The vertical seal body 96 is composed of the plate 43 and the vertical seal 44. Plate 43
Is made of metal, and as shown in FIG.
Screw insertion holes 109, 109 through which 25 (see FIG. 1) is inserted
And vertical seal 4 using the set screws 126, 126.
Screw holes 110, 1 for attaching 4 to the plate 43
And 10 are formed. The up-down direction seal 44 is made of synthetic resin, and its end surface has a rail 33 as shown in FIG.
Is attached to the bearing body 34 so as to be in sliding contact with the side surface of the bearing body. Reference numeral 111 in FIG. 21 indicates a screw insertion hole through which the set screw 126 is inserted.
【0038】門形状部材38(図1参照)、前後シール
体39及び上下方向シール体96は、次のようにして組
み立てられる。先ず、移動体32を軌道台33に差し込
む。図1に示すように、移動体32を軌道台33の一端
に移動させる。そして、門形状部材38の深座ぐり10
1,102とエンドキャップ35のねじ挿通孔67,6
8、及び門形状部材38のねじ挿通孔103,104と
エンドキャップ35のねじ挿通孔65,66の位置を一
致させて、門形状部材38をエンドキャップ35の端面
に密着させる。The gate-shaped member 38 (see FIG. 1), the front-rear seal body 39, and the vertical seal body 96 are assembled as follows. First, the moving body 32 is inserted into the track 33. As shown in FIG. 1, the moving body 32 is moved to one end of the track stand 33. And the counterbore 10 of the gate-shaped member 38
1, 102 and screw insertion holes 67, 6 of the end cap 35
8, and the screw insertion holes 103 and 104 of the gate-shaped member 38 and the screw insertion holes 65 and 66 of the end cap 35 are aligned, and the gate-shaped member 38 is brought into close contact with the end surface of the end cap 35.
【0039】その後に、止めねじ114,114を深座
ぐり孔101,102及びねじ挿通孔67,68に挿通
し、軸受本体34のねじ孔61,62(図5参照)にね
じ込む。門形状部材38がエンドキャップ35の端面に
固定されたとき、止めねじ114,114の頭部は深座
ぐり孔101,102に埋没し、門形状部材38の表面
から突出しないようになっている。After that, the set screws 114, 114 are inserted into the deep counterbore holes 101, 102 and the screw insertion holes 67, 68, and screwed into the screw holes 61, 62 (see FIG. 5) of the bearing body 34. When the gate-shaped member 38 is fixed to the end surface of the end cap 35, the heads of the set screws 114, 114 are buried in the deep counterbore holes 101, 102 so as not to project from the surface of the gate-shaped member 38. .
【0040】続いて、前後プレート40、フェルトシー
ル41、前後シール42の順で軌道台33に差し込む。
その際、門形状部材38のねじ孔105,106とねじ
挿通孔117,117,119,119,121,12
1、及び門形状部材38のねじ挿通孔103,104と
ねじ挿通孔118,118,120,120,122,
122の位置を一致させておく。そして、止めねじ12
3,123をねじ挿通孔121,121,119,11
9,117,117の順に挿通し、門形状部材38のね
じ孔105,106にねじ込む。Subsequently, the front and rear plates 40, the felt seal 41, and the front and rear seals 42 are inserted in this order into the track base 33.
At that time, the screw holes 105, 106 of the gate-shaped member 38 and the screw insertion holes 117, 117, 119, 119, 121, 12 are formed.
1, and the screw insertion holes 103 and 104 of the gate-shaped member 38 and the screw insertion holes 118, 118, 120, 120, 122,
The positions of 122 are matched. And set screw 12
3, 123 through the screw insertion holes 121, 121, 119, 11
9, 117, 117 are inserted in this order and screwed into the screw holes 105, 106 of the gate-shaped member 38.
【0041】また、止めねじ124,124も、ねじ挿
通孔122,122,120,120,118,11
8、門形状部材38のねじ挿通孔103,104、エン
ドキャップ35のねじ挿通孔65,66の順に挿通させ
て、軸受本体34のねじ孔59,60(図5参照)にね
じ込む。これによって、前後シール体39(前後プレー
ト40、フェルトシール41及び前後シール42)は門
形状部材38の軸方向外側端面に固定される。The set screws 124 and 124 are also screw insertion holes 122, 122, 120, 120, 118 and 11.
8, the screw insertion holes 103 and 104 of the gate-shaped member 38, and the screw insertion holes 65 and 66 of the end cap 35 are inserted in this order and screwed into the screw holes 59 and 60 (see FIG. 5) of the bearing body 34. Thereby, the front and rear seal bodies 39 (the front and rear plates 40, the felt seals 41, and the front and rear seals 42) are fixed to the axially outer end surfaces of the gate-shaped member 38.
【0042】その後、止めねじ125,125(図1参
照)をプレート43のねじ挿通孔109,109(図2
0参照)に挿通させて、門形状部材38のねじ孔10
7,108(図17参照)にねじ込み、プレート43を
門形状部材38の下端面に固定する。そして、上下方向
シール44の端面を軌道台33の長手方向の側面に密着
させ、且つ、上下方向シール44の一部が前後プレート
40の切欠115に嵌合するようにして、止めねじ12
6,126を上下方向シール44のねじ挿通孔111,
111(図21参照)に挿通させて、プレート43のね
じ孔110,110にねじ込み、上下方向シール44を
プレート43に固定させる。After that, the set screws 125 and 125 (see FIG. 1) are attached to the screw insertion holes 109 and 109 (see FIG. 2) of the plate 43.
0), and the screw hole 10 of the gate-shaped member 38 is inserted.
The plate 43 is fixed to the lower end surface of the gate-shaped member 38 by screwing into 7, 108 (see FIG. 17). Then, the end face of the vertical seal 44 is brought into close contact with the longitudinal side face of the track 33, and a part of the vertical seal 44 is fitted into the notch 115 of the front and rear plate 40, so that the set screw 12
6, 126 are screw insertion holes 111 of the vertical seal 44,
111 (see FIG. 21), and screwed into the screw holes 110, 110 of the plate 43 to fix the vertical seal 44 to the plate 43.
【0043】最後に、移動体32を軌道台33の他端に
移動させ、上記と同様にして、門形状部材38、前後シ
ール体39及び上下方向シール体96(プレート43及
び上下方向シール44)を移動体32の他端に取り付け
る。なお、軌道台33が長尺の場合には、同じ輪郭の比
較的短い仮の軌道台上で門形状部材38、前後シール体
39及び上下方向シール体96を移動体32に取り付け
た後に、実際に使用される長い軌道台33に移動体32
を差し替える。Finally, the movable body 32 is moved to the other end of the track base 33, and in the same manner as above, the gate-shaped member 38, the front-rear seal body 39 and the vertical seal body 96 (the plate 43 and the vertical seal 44). Is attached to the other end of the moving body 32. In addition, when the trackway 33 is long, after the gate-shaped member 38, the front-rear seal body 39, and the up-down direction seal body 96 are attached to the moving body 32 on a temporary trackway having the same contour and a relatively short length, A long rail 33 used for
Replace.
【0044】軌道台33(図1参照)には、取付ボルト
が貫通する取付用孔127が形成されている。この取付
用孔127に溜まった塵埃等の異物は、前後シール体3
9で払拭することは不可能になる。また、取付用孔12
7に溜まった異物が移動体32内で飛散すると、その異
物は、軌道台33のボール転動面45,46,47,4
8、及び軸受本体34のボール転動面51,52,5
3,54に付着し、移動体32の移動に支障を与える恐
れがある。本実施例では、取付用孔127の開口部に、
図16に示すような合成樹脂製の埋栓128が嵌着され
ている。これにより、軌道台33の上面は窪みのない平
坦面となり、前後シール体39により異物はほぼ完全に
払拭される。従って、潤滑剤を貯溜する空間112及び
移動体32内に異物が侵入するようなことがない。A mounting hole 127 through which a mounting bolt penetrates is formed in the track 33 (see FIG. 1). Foreign matter such as dust accumulated in the mounting hole 127 is prevented from entering the front and rear seal bodies 3.
It becomes impossible to wipe off with 9. Also, the mounting hole 12
When the foreign matter collected in 7 scatters in the moving body 32, the foreign matter is collected on the ball rolling surfaces 45, 46, 47, 4 of the raceway 33.
8 and the ball rolling surfaces 51, 52, 5 of the bearing body 34
There is a possibility that the particles may adhere to 3, 54 and hinder the movement of the moving body 32. In this embodiment, at the opening of the mounting hole 127,
A synthetic resin plug 128 as shown in FIG. 16 is fitted. As a result, the upper surface of the track 33 becomes a flat surface without a dent, and the foreign matter is almost completely wiped off by the front and rear sealing body 39. Therefore, foreign matter does not enter the space 112 for storing the lubricant and the moving body 32.
【0045】潤滑剤の循環の様子を説明する。組み立て
られた直動転がり案内軸受31に、潤滑剤ニップル91
から潤滑剤を注入する。潤滑剤は、軸受本体34の幅方
向潤滑剤供給孔84(図7参照)、移動方向潤滑剤供給
孔87,88、エンドキャップ35,35(図2参照)
の貫通孔89,90、及び門形状部材38,38の移動
方向潤滑剤供給孔97,98を経て、潤滑剤供給口9
9,100から空間112(図22参照)内に送り込ま
れて、空間112に充填、貯溜される。The state of circulation of the lubricant will be described. The assembled linear motion rolling guide bearing 31 has a lubricant nipple 91.
Inject lubricant from. The lubricant is the width direction lubricant supply hole 84 (see FIG. 7) of the bearing body 34, the movement direction lubricant supply holes 87 and 88, and the end caps 35 and 35 (see FIG. 2).
Through the through holes 89, 90 of the gate-shaped members 38, and the lubricant supply holes 97, 98 in the moving direction of the gate-shaped members 38, 38.
It is sent from 9,100 into the space 112 (see FIG. 22), filled and stored in the space 112.
【0046】そして、図2において、移動体32が左側
へ移動するときには、左側の空間に貯溜されている潤滑
剤が軌道台33のボール転動面45,46,47,48
に付着しているので、このボール転動面45,46,4
7,48上をボール列が転動し、ボール列に潤滑剤が転
写され、さらに、移動体側ボール転動面51,52,5
3,54にも潤滑剤が転写される。また、移動体32が
図2において右側へ移動するときには、同様に、右側の
空間に貯溜される潤滑剤がボール列に転写され、移動体
側ボール転動面51,52,53,54にも転写され
る。従って、軌道台側ボール転動面45,46,47,
48、ボール列、移動体側ボール転動面51,52,5
3,54が潤滑剤不足になるようなことはない。In FIG. 2, when the moving body 32 moves to the left side, the lubricant stored in the space on the left side causes the ball rolling surfaces 45, 46, 47 and 48 of the raceway 33 to move.
Since it adheres to the ball rolling surface 45, 46, 4
The ball rows roll on 7, 48, the lubricant is transferred to the ball rows, and further, the moving body side ball rolling surfaces 51, 52, 5
The lubricant is also transferred to 3,54. Further, when the moving body 32 moves to the right side in FIG. 2, similarly, the lubricant stored in the space on the right side is transferred to the ball row and also transferred to the moving body side ball rolling surfaces 51, 52, 53, 54. To be done. Therefore, the raceway side ball rolling surfaces 45, 46, 47,
48, ball row, moving body side ball rolling surface 51, 52, 5
There is no possibility that 3, 54 will run out of lubricant.
【0047】図22は、直動転がり直動転がり案内軸受
31が垂直面Fに水平方向に沿って取り付けられた場合
を示す図である。但し、理解し易いように、前後シール
体39を取り除いてある。このような場合には、地側に
位置する潤滑剤供給口(ねじ孔)100にねじ129
(閉塞栓)をねじ込み、潤滑剤供給口100を閉塞して
おく。こうすることによって、潤滑剤ニップル91から
供給された潤滑剤113は、天側に位置する潤滑剤供給
口99から供給され、空間112に貯溜される。空間1
12の上部の空間に供給された潤滑剤は、軌道台33と
移動体32との間の隙間Sを通って下部の空間に供給さ
れる。FIG. 22 is a view showing a case where the linear motion rolling linear motion rolling guide bearing 31 is mounted on the vertical surface F along the horizontal direction. However, the front and rear sealing bodies 39 are removed for easy understanding. In such a case, a screw 129 is attached to the lubricant supply port (screw hole) 100 located on the ground side.
The (obstruction plug) is screwed in to close the lubricant supply port 100. By doing so, the lubricant 113 supplied from the lubricant nipple 91 is supplied from the lubricant supply port 99 located on the top side and stored in the space 112. Space 1
The lubricant supplied to the space above 12 is supplied to the space below through the gap S between the track 33 and the moving body 32.
【0048】従って、軌道台33の天側の軌道台側ボー
ル転動面45,46に常に潤滑剤113が付着している
から、天側のボール列が潤滑剤不足になるようなことは
ない。なお、図22は例示であって、直動転がり案内軸
受31が垂直面或いは水平面に対して傾けて取り付けら
れる場合にも同様に、軌道台側ボール転動面45,4
6,47,48に潤滑剤113が確実に付着する。Therefore, since the lubricant 113 is always attached to the raceway side ball rolling surfaces 45 and 46 on the top side of the raceway 33, the top row of balls does not run out of lubricant. . Note that FIG. 22 is an exemplification, and similarly in the case where the linear motion rolling guide bearing 31 is mounted at an inclination with respect to the vertical surface or the horizontal plane, the raceway side ball rolling surfaces 45, 4 are similarly provided.
The lubricant 113 surely adheres to 6, 47 and 48.
【0049】潤滑剤として粘度の低いオイルを使用した
場合、そのオイルは、空間112から流出して、エンド
キャップ35との接触面側における門形状部材38と軌
道台33の外面との間の隙間を通って、軌道台33と移
動体32との間の隙間に充填される。なお、軌道台33
の外面と移動体32との間の隙間は、移動体32の移動
を許容するための隙間であり、当然必要な隙間である。
そして、移動体32の移動方向におけるオイルの漏れ
は、移動体32の移動方向両端に設けられた一対の前後
シール体32によって防止される。又、移動体32の下
方からのオイルの漏れはアンダーシール37によって防
止される。When an oil having a low viscosity is used as the lubricant, the oil flows out from the space 112 and a gap between the gate-shaped member 38 and the outer surface of the track 33 on the contact surface side with the end cap 35. To fill the space between the track 33 and the moving body 32. In addition, rail way 33
The gap between the outer surface of the moving body 32 and the moving body 32 is a gap for allowing the moving body 32 to move, and is naturally a necessary gap.
The oil leakage in the moving direction of the moving body 32 is prevented by the pair of front and rear sealing bodies 32 provided at both ends of the moving body 32 in the moving direction. The under seal 37 prevents oil from leaking from below the moving body 32.
【0050】さらに、潤滑剤として粘度の高いグリース
を使用した場合、グリースは、移動体32の移動にとも
なって、空間112から流出し、軌道台33の外面と移
動体32との隙間にも充填される。グリースの場合にお
いても、移動体32の移動方向における漏れは移動体3
2の移動方向両端に設けられた一対の前後シール体32
によって防止され、移動体32の下方からの漏れはアン
ダーシール37によって防止される。Further, when grease having a high viscosity is used as the lubricant, the grease flows out from the space 112 as the moving body 32 moves, and also fills the gap between the outer surface of the track 33 and the moving body 32. To be done. Even in the case of grease, the leakage in the moving direction of the moving body 32 is caused by the moving body 3
2 a pair of front and rear sealing bodies 32 provided at both ends in the moving direction
The under seal 37 prevents leakage from below the moving body 32.
【0051】このように、移動体32の移動方向両端に
形成された一対の空間112,122は、軌道台33の
外面と移動体32の内面との間の隙間によって互いに連
通している。そして、この隙間と空間112,122
は、一対の前後シール体32,32と上下方向シール9
6,96とアンダーシール37,37とによって密閉さ
れ、全体として、潤滑剤溜を形成している。As described above, the pair of spaces 112 and 122 formed at both ends in the moving direction of the moving body 32 communicate with each other through the gap between the outer surface of the track way 33 and the inner surface of the moving body 32. Then, the gaps and spaces 112 and 122
Is a pair of front and rear seal bodies 32, 32 and a vertical seal 9
6, 96 and the under seals 37, 37 are sealed to form a lubricant reservoir as a whole.
【0052】以上の実施例では、転動体としてボールを
使用したエンドキャップ式直動転がり案内軸受に本発明
の潤滑構造を適用したものを例示したが、本発明の潤滑
構造は、前記実公昭63−9806号公報に開示されて
いるようなチューブ式直動転がり案内軸受、転動体とし
てローラを用いた直動転がり案内軸受、或いは、ボール
とローラを併用した直動転がり案内軸受(図示省略)等
にも適用できることは勿論である。又、以上の実施例の
潤滑構造は、転動体の接触線が軌道台の両側の転動体転
動面に対し軌道台の外方で交わる、いわゆる背面配置
(DB)構造の直動転がり案内軸受に組込まれている
が、転動体の接触線が軌道台の両側の転動体転動面に対
し軌道台の内方で交わる、いわゆる正面配置(DF)構
造の直動転がり案内軸受にも組込むことができる。In the above embodiments, the end cap type linear motion rolling guide bearing using balls as rolling elements has been exemplified by applying the lubricating structure of the present invention. No. 9806 discloses a tube type linear motion rolling guide bearing, a linear motion rolling guide bearing using rollers as rolling elements, or a linear motion rolling guide bearing (not shown) using both balls and rollers. Of course, it can also be applied to. Further, the lubrication structure of the above-described embodiment is a linear motion rolling guide bearing of so-called rear surface arrangement (DB) structure in which the contact lines of the rolling elements intersect the rolling element rolling surfaces on both sides of the raceway outside the raceway. However, it should also be incorporated in a linear motion rolling guide bearing with a so-called front arrangement (DF) structure in which the contact lines of the rolling elements intersect the rolling element rolling surfaces on both sides of the raceway inside the raceway. You can
【0053】[0053]
【発明の効果】請求項1の潤滑構造は、移動体の移動方
向前後面に設けられた潤滑剤溜に貯溜されている潤滑剤
が軌道台側転動体転動面に、常時付着し、移動体の移動
にともなう転動体の転動によって、転動体と移動体側転
動体転動面とに転写されるようになっているため、潤滑
剤の種類や直動転がり案内軸受の構造に制限されずに、
転動体、軌道台側転動体転動面、移動体側転動体転動面
に潤滑剤を確実に行き渡らせることができる。例えば、
粘度の高いグリースのような潤滑剤であっても確実に行
き渡らせることができる。According to the lubrication structure of the present invention, the lubricant stored in the lubricant reservoirs provided on the front and rear surfaces in the moving direction of the moving body always adheres to the rolling surface of the raceway side rolling element to move. It is designed to be transferred to the rolling element and the rolling surface of the rolling element on the moving body side due to the rolling of the rolling element that accompanies the movement of the body.Therefore, the type of lubricant and the structure of the linear motion rolling guide bearing are not limited. To
The lubricant can be reliably spread over the rolling elements, the raceway side rolling element rolling surfaces, and the moving body side rolling element rolling surfaces. For example,
Even a lubricant such as high-viscosity grease can be reliably spread.
【0054】そして、請求項1の潤滑構造は、潤滑剤溜
を移動体の移動方向前後面に設けたので、従来よりも潤
滑剤溜を大きくして、潤滑剤の貯溜量を増やすことがで
き、潤滑剤の注入間隔を延ばして、メンテナンスが容易
になる。Further, in the lubricating structure according to the first aspect, since the lubricant reservoir is provided on the front and rear surfaces in the moving direction of the moving body, the lubricant reservoir can be made larger than the conventional one and the lubricant reservoir amount can be increased. By extending the lubricant injection interval, maintenance becomes easier.
【0055】請求項2の潤滑構造によれば、単一の潤滑
剤供給口から、前後の潤滑剤溜に潤滑剤を供給すること
ができる。また、請求項3の潤滑構造によれば、先に供
給された潤滑剤から順次消費されるようにすることがで
きる。また、請求項4の潤滑構造によれば、地側になっ
た潤滑剤供給孔の潤滑剤供給口を塞ぐことによって、外
部から注入された潤滑剤は、常に天側の潤滑剤供給口か
ら潤滑剤溜に供給されるので、従来、潤滑不足になりが
ちであった、天側の軌道台側、移動体側転動体転動面と
転動体とに潤滑剤を確実に行き渡らせることができる。According to the lubricating structure of the second aspect, the lubricant can be supplied to the front and rear lubricant reservoirs from the single lubricant supply port. Further, according to the lubricating structure of the third aspect, it is possible to sequentially consume the lubricant supplied first. Further, according to the lubrication structure of claim 4, by closing the lubricant supply port of the lubricant supply hole on the ground side, the lubricant injected from the outside is always lubricated from the lubricant supply port on the top side. Since the lubricant is supplied to the agent reservoir, it is possible to reliably spread the lubricant to the raceway side on the top side, the rolling element rolling surface on the moving body side, and the rolling elements, which conventionally tend to be insufficient in lubrication.
【図1】 本発明の実施例の潤滑構造を具えた直動転
がり案内軸受の分解斜視図である。FIG. 1 is an exploded perspective view of a linear motion rolling guide bearing having a lubricating structure according to an embodiment of the present invention.
【図2】 図1の直動転がり案内軸受の側面図であ
る。2 is a side view of the linear motion rolling guide bearing of FIG. 1. FIG.
【図3】 図1の直動転がり案内軸受の前後シール体
の右半分を取り除いた直動転がり案内軸受の正面図であ
る。FIG. 3 is a front view of the linear motion rolling guide bearing in which the right half of the front and rear seal bodies of the linear motion rolling guide bearing of FIG. 1 is removed.
【図4】 図1の直動転がり案内軸受のエンドキャッ
プの右半分を取り除いた直動転がり案内軸受の正面図で
ある。FIG. 4 is a front view of the linear motion rolling guide bearing in which the right half of the end cap of the linear motion rolling guide bearing of FIG. 1 is removed.
【図5】 軸受本体の斜視図である。FIG. 5 is a perspective view of a bearing body.
【図6】 軸受本体の右半分を幅方向潤滑剤供給孔に
沿って破断した軸受本体の正面図である。FIG. 6 is a front view of the bearing body in which the right half of the bearing body is broken along the widthwise lubricant supply hole.
【図7】 軸受本体の平面図である。FIG. 7 is a plan view of the bearing body.
【図8】 エンドキャップの斜視図である。FIG. 8 is a perspective view of an end cap.
【図9】 エンドキャップの背面図である。FIG. 9 is a rear view of the end cap.
【図10】 図9の10−10矢視断面図である。10 is a sectional view taken along the line 10-10 of FIG.
【図11】 図9の11−11矢視断面図である。11 is a cross-sectional view taken along the line 11-11 of FIG.
【図12】 ボールリテーナの斜視図である。FIG. 12 is a perspective view of a ball retainer.
【図13】 移動体に嵌着されるアンダーシールの斜視
図である。FIG. 13 is a perspective view of an under seal fitted to a moving body.
【図14】 図13の14−14矢視断面図である。14 is a sectional view taken along the line 14-14 of FIG.
【図15】 図13の15−15矢視断面図である。FIG. 15 is a sectional view taken along the line 15-15 of FIG.
【図16】 軌道台の取付用孔に嵌着される埋栓の斜視
図である。FIG. 16 is a perspective view of an embedding plug fitted into a mounting hole of a rail track.
【図17】 門形状部材の正面図である。FIG. 17 is a front view of the gate-shaped member.
【図18】 図17の右側面図である。FIG. 18 is a right side view of FIG. 17.
【図19】 図17の19−19矢視断面図である。19 is a cross-sectional view taken along the line 19-19 of FIG.
【図20】 サイドプレートの斜視図である。FIG. 20 is a perspective view of a side plate.
【図21】 門形状部材に固着される上下方向シールの
斜視図である。FIG. 21 is a perspective view of a vertical seal fixed to the gate-shaped member.
【図22】 垂直面に軌道台が水平方向に取り付けられ
た直動転がり案内軸受正面図であり、潤滑剤供給口に沿
った断面図である。FIG. 22 is a front view of a linear motion rolling guide bearing in which a rail is horizontally mounted on a vertical surface, and is a cross-sectional view taken along a lubricant supply port.
【図23】 垂直面に水平方向に沿って取り付けられた
直動転がり案内軸受の模式図である。FIG. 23 is a schematic view of a linear motion rolling guide bearing mounted on a vertical surface in the horizontal direction.
【図24】 背面配置(DB)構造の直動転がり案内軸
受の説明図である。FIG. 24 is an explanatory diagram of a linear motion rolling guide bearing having a rear surface arrangement (DB) structure.
31 直動転がり案内軸受 32 移動体
33 軌道台 36 ボール(転動体) 38 門形状部材 42 前後シール 44 上下方向シール 45,46,47,48 軌道台側側ボール転動
面(軌道台側転動体転動面) 51,52,53,54 移動体側ボール転動面
(移動体側転動体転動面) 84,87,88,97,98 潤滑剤供給孔 99,100 潤滑剤供給口 112 空間(潤滑剤
溜) 129 閉塞栓 207 循環路31 Linear motion rolling guide bearing 32 Moving body
33 raceway 36 ball (rolling element) 38 gate-shaped member 42 front-rear seal 44 vertical seal 45, 46, 47, 48 raceway-side ball rolling surface (raceway-side rolling element rolling surface) 51, 52, 53 , 54 moving body side ball rolling surface (moving body side rolling body rolling surface) 84, 87, 88, 97, 98 lubricant supply hole 99, 100 lubricant supply port 112 space (lubricant reservoir) 129 block plug 207 circulation path
Claims (4)
と、該軌道台上に移動可能に跨架されるとともに前記転
動体転動面に対向する転動体転動面を内側面に有し且つ
該転動体転動面を含む無限循環路が形成された移動体
と、前記無限循環路を転動するとともに前記対向する両
転動体転動面内で負荷を支承する多数の転動体と、前記
移動体の下端面に取付けられ該移動体と前記軌道台の側
面との上下方向隙間を封じるアンダーシールとを具えた
直動転がり案内軸受において、 前記移動体の移動方向両端に、前記軌道台に遊嵌される
門形状部材と、該門形状部材と前記軌道台外面との移動
方向隙間を封じる前後シールと、前記門形状部材と前記
軌道台側面との上下方向隙間を封じる上下方向シールと
が装着され、 前記軌道台外面と対向する前記門形状部材の内面と、前
記前後シールと、前記上下方向シールと、前記軌道台外
面とから成る空間を潤滑剤溜としたことを特徴とする、 直動転がり案内軸受の潤滑構造。1. A raceway having rolling element rolling surfaces on both side surfaces, and a rolling element rolling surface that is movably supported on the raceway and that opposes the rolling element rolling surface is an inner side surface. A moving body having an infinite circulation path including the rolling element rolling surface, and a large number of rolling elements rolling in the infinite circulation path and bearing a load in the opposing rolling element rolling surfaces. And a linear motion rolling guide bearing that is attached to a lower end surface of the moving body and includes an under seal that seals a vertical gap between the moving body and a side surface of the raceway, at both ends in the moving direction of the moving body, A gate-shaped member that is loosely fitted to the way, a front-rear seal that seals a gap in the moving direction between the gate-shaped member and the outer surface of the raceway, and a vertical direction that seals a vertical gap between the gate-shaped member and the side surface of the raceway. A seal is attached to the gate that faces the outer surface of the raceway. And the inner surface of Jo member, said front and rear seal, the vertical seal and, characterized in that the space of said track rail exterior surface has a lubricant sump, the lubricating structure of the linear motion rolling guide bearings.
方向潤滑剤供給孔と、該幅方向潤滑剤供給孔と連通する
貫通孔としての移動方向潤滑剤供給孔とが形成され、前
記門形状部材に設けた前記移動体の移動方向潤滑剤供給
孔と連通する潤滑剤排出孔が前記空間に連通している、
請求項1の直動転がり案内軸受の潤滑構造。2. The moving body is provided with a widthwise lubricant supply hole including a lubricant supply port, and a moving direction lubricant supply hole as a through hole communicating with the widthwise lubricant supply hole, A lubricant discharge hole communicating with a moving direction lubricant supply hole of the moving body provided in the gate-shaped member communicates with the space;
A lubrication structure for a linear motion rolling guide bearing according to claim 1.
記軌道台の転動体転動面の幅方向外側に位置するように
形成されている、請求項2の直動転がり案内軸受の潤滑
構造。3. The linear motion rolling guide bearing according to claim 2, wherein the lubricant discharge port of the lubricant discharge hole is formed outside the rolling element rolling surface of the raceway in the width direction. Lubrication structure.
方向潤滑剤供給孔と、該幅方向潤滑剤供給孔と連通する
貫通孔としての移動方向潤滑剤供給孔と、前記門形状部
材に設けた前記移動体の移動方向潤滑剤供給孔と連通す
る潤滑剤排出孔が、前記直動転がり案内軸受の移動方向
に対して幅方向に一対設けられており、前記直動転がり
案内軸受の取付姿勢に応じて、地側に位置する前記潤滑
剤排出口が閉塞されている、請求項2又は3の直動転が
り案内軸受の潤滑構造。4. A widthwise lubricant supply hole including the lubricant supply port of the movable body, a movement direction lubricant supply hole as a through hole communicating with the widthwise lubricant supply hole, and the gate-shaped member. A pair of lubricant discharge holes communicating with the moving direction lubricant supply hole of the moving body provided in the width direction with respect to the moving direction of the linear motion rolling guide bearing. The lubrication structure for a linear motion rolling guide bearing according to claim 2 or 3, wherein the lubricant discharge port located on the ground side is closed according to the mounting posture.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15560695A JP3888702B2 (en) | 1995-05-31 | 1995-05-31 | Lubrication structure of linear motion rolling guide bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15560695A JP3888702B2 (en) | 1995-05-31 | 1995-05-31 | Lubrication structure of linear motion rolling guide bearing |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08326748A true JPH08326748A (en) | 1996-12-10 |
JP3888702B2 JP3888702B2 (en) | 2007-03-07 |
Family
ID=15609707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15560695A Expired - Lifetime JP3888702B2 (en) | 1995-05-31 | 1995-05-31 | Lubrication structure of linear motion rolling guide bearing |
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JP (1) | JP3888702B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008224041A (en) * | 2008-05-07 | 2008-09-25 | Thk Co Ltd | Rolling guide device |
JP2009047261A (en) * | 2007-08-21 | 2009-03-05 | Nippon Thompson Co Ltd | Linear motion guide unit having fitting plate |
WO2012023239A1 (en) * | 2010-08-19 | 2012-02-23 | 日本精工株式会社 | Linear guide device |
JP2013104534A (en) * | 2011-11-16 | 2013-05-30 | Nsk Ltd | Sealing mechanism for linear guide device |
KR102574504B1 (en) * | 2022-05-09 | 2023-09-06 | 스타로봇 주식회사 | Apparatus for supplying lubricant oil in carrier |
KR20230153695A (en) * | 2022-04-29 | 2023-11-07 | 스타로봇 주식회사 | Apparatus for supplying lubricant oil in carrier |
-
1995
- 1995-05-31 JP JP15560695A patent/JP3888702B2/en not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009047261A (en) * | 2007-08-21 | 2009-03-05 | Nippon Thompson Co Ltd | Linear motion guide unit having fitting plate |
JP2008224041A (en) * | 2008-05-07 | 2008-09-25 | Thk Co Ltd | Rolling guide device |
WO2012023239A1 (en) * | 2010-08-19 | 2012-02-23 | 日本精工株式会社 | Linear guide device |
JP2012041986A (en) * | 2010-08-19 | 2012-03-01 | Nsk Ltd | Linear guide device |
CN102449334A (en) * | 2010-08-19 | 2012-05-09 | 日本精工株式会社 | Linear guide device |
US8764293B2 (en) | 2010-08-19 | 2014-07-01 | Nsk Ltd. | Linear guide apparatus |
JP2013104534A (en) * | 2011-11-16 | 2013-05-30 | Nsk Ltd | Sealing mechanism for linear guide device |
KR20230153695A (en) * | 2022-04-29 | 2023-11-07 | 스타로봇 주식회사 | Apparatus for supplying lubricant oil in carrier |
KR102574504B1 (en) * | 2022-05-09 | 2023-09-06 | 스타로봇 주식회사 | Apparatus for supplying lubricant oil in carrier |
Also Published As
Publication number | Publication date |
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JP3888702B2 (en) | 2007-03-07 |
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