TWI700440B - 運動引導裝置 - Google Patents

運動引導裝置 Download PDF

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TWI700440B
TWI700440B TW105140464A TW105140464A TWI700440B TW I700440 B TWI700440 B TW I700440B TW 105140464 A TW105140464 A TW 105140464A TW 105140464 A TW105140464 A TW 105140464A TW I700440 B TWI700440 B TW I700440B
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holding belt
rolling element
rolling
rolling elements
path
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TW201732170A (zh
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青木慎史
入川弘基
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日商蒂業技凱股份有限公司
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    • 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
    • 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
    • F16C29/0647—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with four rows of balls with load directions in X-arrangement
    • 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
    • F16C29/0614—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only
    • F16C29/0621—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only for supporting load in essentially two directions, e.g. by multiple points of contact or two rows of rolling elements
    • F16C29/0623—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a shoe type bearing body, e.g. a body facing one side of the guide rail or track only for supporting load in essentially two directions, e.g. by multiple points of contact or two rows of rolling elements with balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
    • F16C29/0635—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
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
    • F16C29/0652—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage
    • F16C29/0666—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides whereby the return paths are at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with 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
    • F16C33/38—Ball cages
    • 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
    • F16C33/38—Ball cages
    • F16C33/3825—Ball cages formed as a flexible belt, e.g. spacers connected by a thin film
    • 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
    • F16C33/38—Ball cages
    • F16C33/3887—Details of individual pockets, e.g. shape or ball retaining means
    • 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
    • F16C33/46—Cages for rollers or needles
    • F16C33/50—Cages for rollers or needles formed of interconnected members, e.g. chains
    • F16C33/506—Cages for rollers or needles formed of interconnected members, e.g. chains formed as a flexible belt
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/44—Hole or pocket sizes
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/70—Diameters; Radii

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

本發明的運動引導裝置，在保持帶與滾動體一起在無限循環路內循環時，可減輕作用於該保持帶的拉伸力，防止保持帶的偏磨損，具備：軌道軌(1)；在上述軌道軌滾動的多數個滾動體(3)；具有上述滾動體的無限循環路(6)並沿著上述軌道軌自由運動的移動塊(2)；及形成有以預定間隔收容上述滾動體的袋體(34)，並組裝於上述無限循環路與上述滾動體一起在該無限循環路內移動的保持帶(30)，上述保持帶是在上述無限循環路內使一對端部透過1個自由滾動體(3a)彼此相對，滿足以下的條件。
(X-Y)×Z>(B+C)-A>0
A：無限循環路的路徑長、B：保持帶全長、C：自由滾動體的直徑、X：袋體徑、Y：滾動體的直徑、Z：排列於上述保持帶的滾動體數。

Description

運動引導裝置
本發明是有關沿著軌道軌自由引導工作機械的工件台或各種搬運裝置的平台的運動引導裝置。
作為該種運動引導裝置已知有專利文獻1所揭示。該運動引導裝置，具備：舖設在機床等的固定部的軌道軌，及可沿此軌道軌自由移動並可固定引導對象的平台等之活動體的移動塊。上述移動塊是透過滾珠或滾子的複數個滾動體組裝於上述軌道軌，在上述軌道軌沿著長方向形成有滾動體的滾動面。在上述移動塊設有與上述軌道軌的滾動面相對的滾動體的滾動面，並設有從該滾動面的一端朝多使上述滾動體循環的無限循環路，上述滾動體在該無限循環路內循環，藉此上述移動塊可沿著上述軌道軌自由地進行運動。
並且，在上述無限循環路內與上述滾動體一起組裝有將該滾動體的間隔保持成一定用的保持帶。上述保持帶是由具有合成樹脂等的撓性的材料所成形，在該保持帶以一定間隔排列著收容滾動體的袋體。又，將保持帶 設定使其全長比無限循環路的路徑長度短，在組裝於無限循環路時，使兩端部在該無限循環路內隔著間隔彼此相對。滾動體是在該保持帶的袋體內一邊旋轉並在上述軌道軌的滾動面及上述移動塊的滾動面滾動，隨著滾珠在無限循環路內的循環，使得該保持帶也在上述無限循環路內循環。
上述移動塊具有的滾動體的無限循環路是由：負載通路；與該負載通路平行設置的返回通路；及連接上述負載通路與返回通路之端部彼此的一對方向轉換路所構成。該負載通路為上述軌道軌的滾動面與上述移動塊之滾動面相對的區域，上述滾動體是在軌道軌與移動塊之間一邊負荷著負載並在該負載通路滾動。另一方面，上述返回通路及上述一對方向轉換路是用於使上述滾動體從上述負載通路的終端回到起始端的無負載通路，上述滾動體在該通路中未負荷任何的負載。
因此，在上述軌道軌與上述移動塊之間產生相對運動時，上述負載通路內的滾動體雖被強制性滾動而在該通路內進行，但是上述返回通路及上述一對方向轉換路內的滾動體本身不會滾動，透過上述保持帶被負載通路內的滾動體拉伸或者推壓而在該返回通路及一對方向轉換路進行。
[先前技術文獻] [專利文獻]
專利文獻1：日本特許第3243415號
如上述，上述保持帶使兩端部彼此相對地組裝於上述無限循環路內，因此起因於如以上的無限循環路內之滾動體的滾動，在其端部出入於上述負載通路時成為沿著循環方向拉伸的力重複作用於上述保持帶。伴隨此，該保持帶相對於設置在方向轉換路的帶導槽產生部份強力地磨擦而有促進偏磨損之虞。
本發明是鑒於如以上課題所研創而成，其目的為提供一種運動引導裝置，在保持帶與滾動體一起在無限循環路內循環時，可減輕作用於該保持帶的拉伸力，防止保持帶的偏磨損。
亦即，本發明的運動引導裝置，具備：軌道軌；在上述軌道軌滾動的多數個滾動體；具有上述滾動體的無限循環路並沿著上述軌道軌自由運動的移動塊；及形成有以預定間隔收容上述滾動體的袋體，並組裝於上述無限循環路與上述滾動體一起在該無限循環路內移動的保持帶，上述保持帶是在上述無限循環路內使一對端部透過1個自由滾動體彼此相對，滿足以下的條件。
(X-Y)×Z>(B+C)-A>0
Figure 105140464-A0202-12-0004-8
根據本發明，上述保持帶是以朝長方向推壓緊縮的狀態組裝於無限循環路，因此上述保持帶的兩端部透過自由滾動體經常地彼此互推，伴隨上述保持帶的循環減輕作用於該保持帶的拉伸力，可防止該保持帶的偏磨損。
1‧‧‧軌道軌
2‧‧‧移動塊
3‧‧‧滾珠
3a‧‧‧自由滾珠
4，5，7‧‧‧密封構件
6‧‧‧無限循環路
11‧‧‧滾動面
12‧‧‧螺栓安裝孔
21‧‧‧塊主體
22‧‧‧端板
23‧‧‧滾動面
30‧‧‧保持帶
31‧‧‧間隔部
31a‧‧‧末端間隔部
32‧‧‧結合帶部
33‧‧‧凹面座
34‧‧‧袋體
60‧‧‧負載通路
61‧‧‧返回通路
62‧‧‧方向轉換路
第1圖是表示運用本發明的運動引導裝置的實施形態之一例的透視圖。
第2圖是表示可利用於第1圖表示的運動引導裝置之保持帶的一例的側視圖。
第3圖為第2圖表示之保持帶的上視圖。
第4圖是表示第2圖表示之保持帶的袋體與滾珠的間隙的放大圖。
第5圖是簡略表示第1圖表示的運動引導裝置的無限循環路之構成的剖視圖。
以下，使用添附圖示詳細說明本發明的運動引導裝置。
第1圖是表示運用本發明的運動引導裝置之一例的透視圖。該運動引導裝置。該運動引導裝置是由呈直線狀延伸的軌道軌1，及透過作為滾動體的多數個滾珠3組裝於上述軌道軌1的移動塊2所構成，在固定部舖設上述軌道軌1，相對於上述移動塊2搭載各種的活動體，可沿著軌道軌1自由往返移動地引導相關的活動體。
上述軌道軌1是形成大致剖面四角形的長形體。該軌道軌1在長方向隔著預定的間隔形成有複數個從上面貫穿底面的螺栓安裝孔12，使用插入該等螺栓安裝孔12的固定螺栓，可將軌道軌1牢固地固定在機床、柱等的固定部。在上述軌道軌1的左右兩側面沿著長方向分別設有突部，並在該等突部的上下各設有一條滾珠的滾動面11，作為軌道軌整體設有4條的滾動面11。並且，設置在上述軌道軌1的滾動面11的條數不限於該等。
另一方面，上述移動塊2大致是由金屬製的塊主體21，及裝設在該塊主體21的移動方向的兩側的一對合成樹脂製的端板22所構成。該移動塊2是對應上述軌道軌的各滾動面11具備複數滾珠3的無限循環路，相關的無限循環路是藉著將上述一對端板固定在上述移動塊2的兩端來完成。在各無限循環路組入撓性的保持帶30， 在該保持帶30排列有一列多數個滾珠3。因此，上述移動塊2朝著上述軌道軌1的長方向移動，使得滾珠3在上述軌道軌1的滾動面滾動時，上述保持帶30與滾珠3一起在上述無限循環路循環。
又，在上述移動塊固定有封閉該移動塊與軌道軌的間隙的各種密封構件4、5、7，防止附著在軌道軌1的塵埃等侵入上述無限循環路的內部。再者，第1圖是使得上述移動塊2的整體1/4的缺口描繪，以掌握上述無限循環路內的滾珠3及保持帶30的存在。
第2圖及第3圖是表示排列著上述滾珠3的上述保持帶30的一部份，包括該保持帶30之長方向的端部。上述保持帶30是由以一定間隔呈一列排列的複數間隔部31，及連結該等間隔部31的一對結合帶部32所構成，該等間隔部與結合帶是藉合成樹脂的射出成形所製作。上述保持帶30具備如上述的撓性，在上述無限循環路內與滾珠3一起循環時，重複進行伸展與彎曲。此時，發揮撓性的是上述結合帶部32，該結合帶部32與上述間隔部31比較可自由撓曲。
在各間隔部31設有近似上述滾珠3之球面的曲率的凹面座33，彼此鄰接的間隔部之間是成為收容上述滾珠的袋體34。並且，位在上述保持帶30的端部的末端間隔部31a也形成與其他的保持部31相同的形狀，在上述無限循環路內後述的自由滾珠3a是滑接於末端間隔部31a具備的凹面座33a。
如第4圖表示，設置在上述保持帶30之滾珠3的收容袋體34的直徑X是設定僅稍微大於滾珠3的直徑Y。但是，彼此鄰接的間隔部31之間的距離d是設定小於滾珠3的直徑Y，使收容在上述袋體34的滾珠3不致從位於兩側的間隔部31之間脫落。
並且，使用第2圖至第4圖說明的實施形態雖使用滾珠作為本發明的滾動體，但該滾動體也可以是滾子。此時，形成於上述間隔部31的凹面座33是形成近似於滾子之外圍面的曲率的凹面座。又，形成於上述間隔部31的凹面座33並非必需，從避免滾動體彼此的直接接觸的觀點，該間隔部31也可以單純為平板狀物。
第5圖是表示上述無限循環路6的剖視圖。上述無限循環路6是由負載通路60、返回通路61及一對方向轉換路62所構成。在構成上述移動塊2的塊主體21形成有與上述軌道軌1的滾動面11相對的滾動面23，滾珠3是在軌道軌1的滾動面11與塊主體21的滾動面23之間一邊負荷著負載一邊滾動。上述無限循環路6之中，如上述滾珠3一邊負荷著負載並滾動的通路部份為上述負載通路60。在上述塊主體21形成有與上述負載通路60平行的上述返回通路61。通常，該返回通路61是貫穿上述塊主體21設置，其內徑是設定比滾珠3的直徑稍微大。另一方面，上述一對方向轉換路62是位在上述負載通路60的長方向的兩側，連接該負載通路60的端部與上述返回通路61的端部。各方向轉換路62是設置在上述端 板22，將一對端板22固定在上述塊主體21的兩端的預定位置，藉以使上述方向轉換路連接上述負載通路60與上述返回通路61，完成上述滾珠3可循環的無限循環路6。
在上述無限循環路6組入將滾珠3收容於上述袋體34的上述保持帶。上述保持帶30的兩端部在該無限循環路6的內部彼此相對，在該等之間配置有未收容於上述袋體34的滾珠(以下，稱「自由滾珠」)3a。該自由滾珠3a是與排列在上述保持帶30之袋體34的滾珠3相同，與其他的滾珠3同樣在上述軌道軌1與上述塊主體之間負荷著負載。並且，該自由滾珠3a的球面是與上述保持帶的末端間隔部31a的凹面座33抵接。因此，在上述無限循環路6內以相當於上述間隔部31的厚度的一定的間隔排列有多數個滾珠3。
由於上述自由滾珠3a與上述末端間隔部31a的凹面座33經常地接觸，因此上述無限循環路6的路徑長A是設定小於上述保持帶30的全長B與上述自由滾珠3a的直徑C的和。亦即，(B+C)>A。在此，上述無限循環路6的路徑長是在該無限循環路內滾珠3的中心所描繪軌跡之一周量的長度。又，上述保持帶30的全長B是在上述末端間隔部31a形成有與上述自由滾珠3a接觸之凹面座33a的場合，該保持帶的一旦從凹面座33a的最深部到另一端部之凹面座33a的最深部為 止的距離。
因此，只要滿足以下的式，δ=(B+C)-A>0
上述保持帶30即可以朝著其長方向推壓緊縮的狀態組入於上述無限循環路6，位在該保持帶30兩端的一對末端間隔部31a形成經常與上述自由滾珠3a接觸。
另一方面，朝上述無限循環路6組入上述保持帶30及自由滾珠3a時，有將該保持帶30的全長朝著長方向僅推壓緊縮上述長度δ的必要。關於此點，將上述保持帶30的各袋體34的直徑X設定比收容在其中的滾珠3的直徑Y大，收容在該袋體34的滾珠3與上述間隔部31之間存在有間隙(X-Y)。因此，排除該間隙，可藉此推壓緊縮上述保持帶30，此時的各個結合帶部32形成僅稍微被壓縮而彎曲的狀態。
設排列於上述保持帶30之滾珠3的總數為Z的場合，為排除各滾珠3與間隔部31的間隙而推壓緊縮該保持帶30時，其最大量為δmax=(X-Y)Z。亦即，上述間隔部31至此δmax為止不致被壓潰，可以使上述保持帶30的全長順利朝其長方向推壓緊縮。
從以上說明可得知，為滿足以下的條件，(X-Y)×Z>(B+C)-A>0而設定無限循環路6的路徑長A、保持帶30的全長B、自由滾珠3a的直徑C、保持帶30的袋體34的直徑X、滾珠3的直徑Y、排列於上述保持帶30之滾珠3的總數 時，在組入於上述無限循環路6的保持帶30的兩端部之間可一邊夾著1個自由滾珠3a，並預先將該保持帶30的末端間隔部31a經常壓接於上述自由滾珠3a。
在上述無限循環路6內上述保持帶30與滾珠3一起朝著一方向循環的場合，該保持帶30是藉著在上述負載通路60內滾動的滾珠而移動，對應無限循環路6內之保持帶30兩端部的位置，有著大的拉伸力作用於該保持帶30。
此時，為滿足上述的條件只要在上述無限循環路6內組入保持帶30與自由滾珠3a，在該無限循環路6內的保持帶30的循環方向，將上述保持帶30的前端經常地朝後端推壓，因此可減輕作用於上述保持帶30之拉伸力的變動，可防止無限循環路6內之上述保持帶30的偏磨損。
再者，本發明不僅是以滾珠作為滾動體的運動引導裝置，也可運用在以滾子作為滾動體的運動引導裝置。並且，使用第1圖具體表示的運動引導裝置亦僅為其中一例，可運用本發明之運動引導裝置的形狀不限於此。
1‧‧‧軌道軌
2‧‧‧移動塊
3‧‧‧滾珠
3a‧‧‧自由滾珠
6‧‧‧無限循環路
11‧‧‧滾動面
21‧‧‧塊主體
22‧‧‧端板
23‧‧‧滾動面
30‧‧‧保持帶
60‧‧‧負載通路
61‧‧‧返回通路
62‧‧‧方向轉換路

Claims (3)

  1. 一種運動引導裝置，其特徵為，具備：軌道軌(1)；在上述軌道軌滾動的多數個滾動體(3)；具有上述滾動體的無限循環路(6)並沿著上述軌道軌自由運動的移動塊(2)；及形成有以預定間隔收容上述滾動體的袋體，並組裝於上述無限循環路與上述滾動體一起在該無限循環路內移動的保持帶(30)，上述保持帶(30)是由以一定間隔排列成一列的複數間隔部(31)，及連結該等間隔部並具有撓性的一對結合帶部(32)所構成，上述滾動體的收容袋體(34)是設置在彼此鄰接的一對間隔部之間，上述保持帶是在上述無限循環路內使一對端部透過1個自由滾動體(3a)彼此相對，滿足以下的條件(X-Y)×Z>(B+C)-A>0 A：無限循環路的路徑長 X：袋體徑B：保持帶全長 Y：滾動體的直徑C：自由滾動體的直徑 Z：排列於上述保持帶的滾動體數。
  2. 如請求項1記載的運動引導裝置，其中，各間隔部(31)具有上述滾動體(3)接觸的凹面座(33)，位在上述保持帶的端部的末端間隔部(31a)具有與上述自由滾動體(3a)接觸的凹面座(33a)。
  3. 如請求項1記載的運動引導裝置，其 中，自由滾動體(3a)是與收容在上述保持帶(30)之收容袋體(34)的滾動體(3)相同直徑，在上述軌道軌(1)與上述移動塊(2)之間負荷著負載。
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH112241A (ja) * 1997-06-13 1999-01-06 Thk Kk 転動体付ベルト
JP2008185045A (ja) * 2007-01-26 2008-08-14 Nsk Ltd 直動案内装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2607993B2 (ja) * 1991-08-22 1997-05-07 テイエチケー 株式会社 ボールチェイン及び直線運動案内装置
JP3243415B2 (ja) 1996-06-27 2002-01-07 テイエチケー株式会社 摺動案内装置及びその有端転動体チェーン
JPH112243A (ja) * 1997-06-10 1999-01-06 Nippon Seiko Kk 潤滑剤供給体
JP2000046052A (ja) * 1998-07-28 2000-02-15 Nippon Seiko Kk 直動案内装置
JP2000120674A (ja) * 1998-10-12 2000-04-25 Nsk Ltd 直線運動案内装置
JP4760341B2 (ja) 2005-11-30 2011-08-31 日本精工株式会社 直動案内装置用転動体収容ベルトおよび直動案内装置、並びに転動体収容ベルト製造用金型
DE102006059161B4 (de) * 2005-12-15 2023-01-12 Nsk Ltd. Lineare Führungsvorrichtung
US20080085067A1 (en) * 2006-10-05 2008-04-10 Hsin-Tsun Hsu Linear Guideway with Synchronously Operating Spacers
JPWO2010074155A1 (ja) 2008-12-26 2012-06-21 Thk株式会社 転動体リテーナ及びこれを用いた無限循環式直線運動装置
US8408796B1 (en) * 2011-11-21 2013-04-02 Chieftech Precision Co., Ltd. Rolling element retainer belt and linear motion guide apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH112241A (ja) * 1997-06-13 1999-01-06 Thk Kk 転動体付ベルト
JP2008185045A (ja) * 2007-01-26 2008-08-14 Nsk Ltd 直動案内装置

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