TWI506214B - Rolling module and a roller screw having the rolling module - Google Patents

Rolling module and a roller screw having the rolling module Download PDF

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Publication number
TWI506214B
TWI506214B TW102120476A TW102120476A TWI506214B TW I506214 B TWI506214 B TW I506214B TW 102120476 A TW102120476 A TW 102120476A TW 102120476 A TW102120476 A TW 102120476A TW I506214 B TWI506214 B TW I506214B
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spacer
dspacer
column
roller
rolling
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TW102120476A
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Chinese (zh)
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TW201447143A (en
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Shang Hua Tsai
Jouns Liu
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Hiwin Tech Corp
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Description

滾動模組及具有該滾動模組的滾柱螺桿Rolling module and roller screw having the same

本發明係與滾動模組有關,特別是有關於一種滾動模組及具有該滾動模組的滾柱螺桿。The invention relates to a rolling module, in particular to a rolling module and a roller screw having the same.

精密機械中常用的滾柱螺桿、線性滾柱滑軌或滾柱軸承,其內皆配置有滾動模組,而該滾動模組主要係由複數滾柱、及於各滾柱間設置的間隔子所組成,藉由該間隔子使該滾柱與相鄰的滾柱不會直接接觸碰撞,以降低噪音及滾柱摩擦受損發生;然而,該滾動模組於實際使用情形仍具有下述需改善的缺陷。Roller screws, linear roller slides or roller bearings commonly used in precision machinery are equipped with rolling modules, and the rolling modules are mainly composed of a plurality of rollers and spacers arranged between the rollers. The roller is not directly in contact with the adjacent roller by the spacer to reduce noise and roller friction damage; however, the rolling module still has the following requirements in actual use. Improved defects.

參閱第1圖所示,顯示習知滾柱模組的示意圖,該間隔子11與滾柱12接觸面111、121為凹曲面,相鄰滾柱12只存在相互公轉自由度,當該滾動模組在進行換向與迴流動作過程時,相鄰滾柱12需做相互扭轉,而當相鄰滾柱12與間隔子11之間的設計角度不符時,間隔子11勢必受到撕裂破壞。Referring to FIG. 1 , a schematic diagram of a conventional roller module is shown. The contact faces 111 and 121 of the spacer 11 and the roller 12 are concave curved surfaces, and the adjacent rollers 12 only have mutual revolution degrees of freedom. When the group performs the commutation and reflow operations, the adjacent rollers 12 need to be twisted to each other, and when the design angle between the adjacent rollers 12 and the spacer 11 does not match, the spacer 11 is bound to be damaged by tearing.

為此,參閱第2圖所示,顯示美國申請第8146453號「運動導引裝置」的其中一圖示,其主要將該間隔子13以兩件式成形,即由一第一間隔件131及一第二間隔件132所組成,以提供相鄰滾柱14相互扭轉的自由度,然而,該兩件式間隔子13除了產生不易組裝且組裝耗時的缺陷之外, 在該滾動模組滾動的過程中,該間隔子13容易產生傾倒而與滾柱14發生干涉,進而導致滾柱螺桿、線性滾柱滑軌或滾柱軸承運轉的不順暢。To this end, as shown in FIG. 2, one of the illustrations of the "movement guiding device" of US Application No. 8144453 is shown, which mainly forms the spacer 13 in two pieces, that is, by a first spacer 131 and A second spacer 132 is formed to provide freedom of twisting of adjacent rollers 14 to each other. However, the two-piece spacer 13 has the disadvantages of being difficult to assemble and time-consuming to assemble. During the rolling of the rolling module, the spacer 13 is liable to collapse and interfere with the roller 14, which causes the roller screw, the linear roller rail or the roller bearing to operate unsmoothly.

是以,如何開發出一種滾動模組,其可解決上述的缺陷,即為本案發明的動機。Therefore, how to develop a rolling module, which can solve the above drawbacks, is the motivation of the invention.

本發明之目的在於提供一種滾動模組及具有該滾動模組的滾柱螺桿,適用於組設一滾動軌道內,該滾動模組包含:複數滾柱,同向排列地組設於該滾動軌道;複數間隔柱,同向排列地組設於該滾動軌道,且各該間隔柱的排列方向與各該滾柱的排列方向不同、及各該間隔柱與各該滾柱呈交錯排列及相互靠抵;並定義出間隔柱的外徑及長度最佳範圍,以增加滾柱運轉時,相鄰滾柱的迴流與換向的順暢度,同時在不影響間隔柱功能性下,能擺放較多的滾柱數量,以提升動負荷與減少組裝間隔柱的工時。An object of the present invention is to provide a rolling module and a roller screw having the same, which is suitable for assembling a rolling track. The rolling module comprises: a plurality of rollers arranged in the same direction on the rolling track. a plurality of spacer columns are arranged in the same direction in the rolling track, and the arrangement direction of each of the spacer columns is different from the arrangement direction of each of the rollers, and each of the spacer columns and each of the rollers are staggered and mutually abutted And define the optimal range of the outer diameter and length of the spacer to increase the smoothness of the reflow and reversal of the adjacent rollers during the operation of the roller, and at the same time, without affecting the functionality of the spacer, The number of rollers is increased to increase the dynamic load and reduce the man-hours of assembling the spacers.

緣是,為了達成前述目的,依據本發明所提供之一種滾動模組,適用於組設一滾動軌道內,該滾動模組包含:複數滾柱,同向排列地組設於該滾動軌道;複數間隔柱,同向排列地組設於該滾動軌道,且各該間隔柱的排列方向與各該滾柱的排列方向不同、及各該間隔柱與各該滾柱呈交錯排列及相互靠抵;該滾柱的柱徑為D,該間隔柱的柱徑為Dspacer,該間隔柱的最小柱徑為Dspacer-min,該間隔柱的柱高為Lspacer,該間隔柱最大可量測的直線距離為Lspacer-max,該滾動軌道的軌寬為W,滿足下列關係式:D>Dspacer>Dspacer-min;D>Lspacer;Lspacer-max≧W。In order to achieve the foregoing objective, a rolling module according to the present invention is suitable for assembling a rolling track, the rolling module comprising: a plurality of rollers arranged in the same direction on the rolling track; The spacers are arranged in the same direction on the rolling track, and the arrangement direction of each of the spacers is different from the arrangement direction of the rollers, and each of the spacers is staggered and abuts against each of the rollers; The column diameter of the roller is D, the column diameter of the spacer column is Dspacer, the minimum column diameter of the spacer column is Dspacer-min, the column height of the spacer column is Lspacer, and the maximum measurable linear distance of the spacer column is Lspacer-max, the track width of the rolling track is W, and satisfies the following relationship: D>Dspacer>Dspacer-min; D>Lspacer; Lspacer-max≧W.

較佳地,該滾柱的柱徑為D,該間隔柱的柱徑為Dspacer,該間隔柱的最小柱徑為Dspacer-min,滿足下列關係式:0.9D>Dspacer>Dspacer-min。Preferably, the roller has a column diameter D, the column diameter of the spacer column is Dspacer, and the minimum column diameter of the spacer column is Dspacer-min, which satisfies the following relationship: 0.9D>Dspacer>Dspacer-min.

較佳地,該間隔柱的最小柱徑為Dspacer-min,該滾動模組的節圓直徑PCD,相鄰該滾柱於該滾動軌道之軌道面的最小夾角為θ,該滾柱傾斜角為α,該滾動軌道的軌寬為W,該滾柱的柱徑為D,滿足下列關係式:Dspacer-min=(PCD×sin θ×csc α+W×sin θ-D)/(1+sin θ)。Preferably, the minimum column diameter of the spacer is Dspacer-min, the pitch diameter PCD of the rolling module, and the minimum angle of the roller adjacent to the track surface of the rolling track is θ, and the roller inclination angle is α, the track width of the rolling track is W, and the column diameter of the roller is D, which satisfies the following relationship: Dspacer-min=(PCD×sin θ×csc α+W×sin θ-D)/(1+sin θ).

較佳地,該間隔柱的柱徑為Dspacer,該間隔柱的柱高為Lspacer,該間隔柱最大可量測的直線距離為Lspacer-max,滿足下列關係式:Lspacer-max=√(D2 spacer+L2 spacer)。Preferably, the column diameter of the spacer dSpacer column, the column height of the column spacer Lspacer, the maximum linear distance measured in the column spacing is Lspacer-max, satisfies the following relationship: Lspacer-max = √ (D 2 Spacer+L 2 spacer).

其次,同樣為了達成前述目的,本發明另外所提供之一種具有滾動模組的滾柱螺桿,包含:一螺桿,具有一軸線以及一繞該軸線螺旋設置於外部的外螺旋槽道;一螺帽,是沿該軸線方向套設於該螺桿,並包含一繞該軸線螺旋設置於內部的內螺旋槽道,且該內螺旋槽道與外螺旋槽道形成一滾動軌道;一滾動模組,組設在該滾動軌道內,並包含複數滾柱及複數間隔柱,各該滾柱係同向排列地組設於該滾動軌道;各該間隔柱係同向排列地組設於該滾動軌道,且各該間隔柱的排列方向與各該滾柱的排列方向不同、及各該間隔柱與各該滾柱呈交錯排列及相互靠抵;該滾柱的柱徑為D,該間隔柱的柱徑為Dspacer,該間隔柱的最小柱徑為Dspacer-min,該間隔柱的柱高為Lspacer,該間隔柱最大可量測的直線距離 為Lspacer-max,該滾動軌道的軌寬為W,滿足下列關係式:D>Dspacer>Dspacer-min;D>Lspacer;Lspacer-max≧W。Secondly, in order to achieve the foregoing object, the invention further provides a roller screw with a rolling module, comprising: a screw having an axis and an outer spiral channel spirally arranged around the axis; a nut Inserting the screw along the axis direction, and including an inner spiral channel spirally disposed inside the axis, and the inner spiral channel and the outer spiral channel form a rolling track; a rolling module, a group The roller is disposed in the rolling track, and includes a plurality of rollers and a plurality of spacers, wherein the rollers are arranged in the same direction on the rolling track; each of the spacers is disposed in the same direction in the rolling track, and The arrangement direction of each of the spacers is different from the arrangement direction of each of the rollers, and each of the spacers is staggered and abuts against each of the rollers; the column diameter of the roller is D, and the column diameter of the spacer For Dspacer, the minimum column diameter of the spacer is Dspacer-min, the height of the spacer is Lspacer, and the maximum measurable linear distance of the spacer For Lspacer-max, the track width of the rolling track is W, and the following relationship is satisfied: D>Dspacer>Dspacer-min; D>Lspacer; Lspacer-max≧W.

有關本發明為達成上述目的,所採用之技術、手段及其他之功效,茲舉一較佳可行實施例並配合圖式詳細說明如後。The present invention has been described in connection with the preferred embodiments of the present invention in accordance with the accompanying drawings.

《習知》"Knowledge"

11‧‧‧間隔子11‧‧‧ spacer

111‧‧‧接觸面111‧‧‧Contact surface

12‧‧‧滾柱12‧‧‧ Roller

121‧‧‧接觸面121‧‧‧Contact surface

13‧‧‧間隔子13‧‧‧ spacer

131‧‧‧第一間隔件131‧‧‧First spacer

132‧‧‧第二間隔件132‧‧‧Second spacer

14‧‧‧滾柱14‧‧‧roller

《本發明》"this invention"

21‧‧‧螺桿21‧‧‧ screw

211‧‧‧軸線211‧‧‧ axis

212‧‧‧外螺旋槽道212‧‧‧Spiral spiral channel

22‧‧‧螺帽22‧‧‧ Nuts

221‧‧‧內螺旋槽道221‧‧‧inner spiral channel

23‧‧‧滾動軌道23‧‧‧ rolling track

30‧‧‧滾柱30‧‧‧roller

40‧‧‧間隔柱40‧‧‧ spacer column

D‧‧‧滾柱的柱徑D‧‧‧Roller diameter

Dspacer‧‧‧間隔柱的柱徑Column diameter of Dspacer‧‧‧ spacer

Dspacer-min‧‧‧間隔柱的最小柱徑Minimum diameter of Dspacer-min‧‧‧ spacer

Lspacer‧‧‧間隔柱的柱高Column height of Lspacer‧‧‧ spacer

Lspacer-max‧‧‧間隔柱最大可量測的直線距離Lspacer-max‧‧‧ spacer column maximum measurable linear distance

W‧‧‧滾動軌道的軌寬Track width of W‧‧‧ rolling track

PCD‧‧‧滾動模組的節圓直徑Pitch diameter of PCD‧‧‧ rolling module

θ‧‧‧相鄰該滾柱於該滾動軌道之軌道面的最小夾角θ‧‧‧The smallest angle between the adjacent orbital surface of the rolling track

α‧‧‧滾柱傾斜角α‧‧‧Roller angle

第1圖係習知滾柱模組的示意圖。Figure 1 is a schematic view of a conventional roller module.

第2圖係美國申請第8146453號「運動導引裝置」的其中一圖示。Figure 2 is an illustration of one of the "movement guides" of U.S. Application No. 8144453.

第3圖係本發明實施例的組合局部剖面圖。Figure 3 is a combined partial cross-sectional view of an embodiment of the present invention.

第4圖係本發明實施例的組合剖面圖。Figure 4 is a combined cross-sectional view of an embodiment of the present invention.

第5圖係本發明實施例的示意圖,顯示間隔柱為最小柱徑Dspacer-min的狀態。Fig. 5 is a schematic view showing an embodiment of the present invention, showing a state in which the spacer is a minimum column diameter Dspacer-min.

第6圖係本發明實施例的示意圖,顯示滾柱的柱徑D大於間隔柱的柱高Lspacer、以及滾柱的柱徑D大於間隔柱的柱徑Dspacer的狀態。Figure 6 is a schematic view showing an embodiment of the present invention, showing that the column diameter D of the roller is larger than the column height Lspacer of the spacer column, and the column diameter D of the roller is larger than the column diameter Dspacer of the spacer column.

第7圖係本發明實施例的示意圖,顯示間隔柱最大可量測的直線距離Lspacer-max大於滾動軌道的軌寬W的狀態。Fig. 7 is a schematic view showing an embodiment of the present invention, showing a state in which the maximum measurable linear distance Lspacer-max of the spacer is larger than the rail width W of the rolling track.

第8圖係本發明實施例的示意圖,顯示定義滾柱傾斜角α的狀態。Fig. 8 is a schematic view showing an embodiment of the present invention, showing a state in which the inclination angle α of the roller is defined.

第9圖係本發明實施例的示意圖,顯示令滾柱的柱徑D等於間隔柱的柱徑Dspacer的狀態。Figure 9 is a schematic view showing an embodiment of the present invention, showing a state in which the column diameter D of the roller is equal to the column diameter Dspacer of the spacer column.

第10圖係本發明實施例的示意圖,顯示間隔柱的柱徑Dspacer為滾柱的柱徑D的0.8倍的狀態。Fig. 10 is a schematic view showing an embodiment of the present invention, showing a state in which the column diameter Dspacer of the spacer is 0.8 times the column diameter D of the roller.

第11圖係本發明實施例的示意圖,顯示間隔柱的柱徑Dspacer與滾柱 的柱徑D的比值,以及該比值與動負荷增加比例的關係。Figure 11 is a schematic view showing an embodiment of the present invention, showing the column diameter Dspacer of the spacer and the roller The ratio of the column diameter D and the relationship between the ratio and the dynamic load increase ratio.

第12圖係本發明實施例的示意圖,顯示滾柱的柱徑D大於間隔柱的柱徑Dspacer、且間隔柱的柱徑Dspacer為滾柱的柱徑D的0.8倍的狀態。Figure 12 is a schematic view showing an embodiment of the present invention, showing that the column diameter D of the roller is larger than the column diameter Dspacer of the spacer column, and the column diameter Dspacer of the spacer column is 0.8 times the column diameter D of the roller.

參閱第3至8圖所示,本發明實施例所提供的一種滾動模組,適用於組設一滾動軌道內,而該滾動軌道可以是滾柱螺桿、線性滾柱滑軌或滾柱軸承內的滾動軌道,本實施例係舉滾柱螺桿為例,包含(如第3、4圖所示):一螺桿21,具有一軸線211以及一繞該軸線211螺旋設置於外部的外螺旋槽道212。Referring to Figures 3 to 8, a rolling module provided in an embodiment of the present invention is suitable for assembling a rolling track, and the rolling track may be a roller screw, a linear roller sliding rail or a roller bearing. The rolling track, which is an example of a roller screw, includes (as shown in Figures 3 and 4): a screw 21 having an axis 211 and an outer spiral channel spirally disposed around the axis 211 212.

一螺帽22,是沿該軸線211方向套設於該螺桿21,並包含一繞該軸線211螺旋設置於內部的內螺旋槽道221,且該內螺旋槽道221與外螺旋槽道212形成一滾動軌道23。A nut 22 is sleeved on the screw 21 along the axis 211, and includes an inner spiral channel 221 spirally disposed around the axis 211, and the inner spiral channel 221 and the outer spiral channel 212 are formed. A rolling track 23 is provided.

一滾動模組,組設在該滾動軌道23內,並包含複數滾柱30及複數間隔柱40,其中:各該滾柱30,同向排列地組設於該滾動軌道23;各該間隔柱40,同向排列地組設於該滾動軌道23,且各該間隔柱40的排列方向與各該滾柱30的排列方向不同、及各該間隔柱40與各該滾柱30呈交錯排列及相互靠抵;如第5至7圖所示,該滾柱30的柱徑為D,該間隔柱40的柱徑為Dspacer,該間隔柱40的最小柱徑為Dspacer-min(如第5圖所示),該間隔柱40的柱高為Lspacer,該間隔柱40最大可量測的直線距離為 Lspacer-max,該滾動軌道23的軌寬為W,滿足下列關係式:D>Dspacer>Dspacer-min;D>Lspacer;Lspacer-max≧W。a rolling module is disposed in the rolling track 23 and includes a plurality of rollers 30 and a plurality of spacers 40, wherein: the rollers 30 are arranged in the same direction on the rolling track 23; each of the spacers 40, arranged in the same direction on the rolling track 23, and the arrangement direction of each of the spacers 40 is different from the arrangement direction of each of the rollers 30, and each of the spacers 40 and each of the rollers 30 are staggered and Corresponding to each other; as shown in Figures 5 to 7, the column diameter of the roller 30 is D, the column diameter of the spacer column 40 is Dspacer, and the minimum column diameter of the spacer column 40 is Dspacer-min (as shown in Fig. 5). As shown, the column height of the spacer 40 is Lspacer, and the maximum measurable linear distance of the spacer 40 is Lspacer-max, the track width of the rolling track 23 is W, and the following relationship is satisfied: D>Dspacer>Dspacer-min; D>Lspacer; Lspacer-max≧W.

另外,令該滾動模組的節圓直徑PCD(即該滾柱螺桿上下滾柱30之中心圓直徑,如第4圖所示),相鄰該滾柱30於該滾動軌道23之軌道面的最小夾角為θ(如第5圖所示),該滾柱30傾斜角為α(如第8圖所示),該滾動軌道23的軌寬為W,該滾柱30的柱徑為D,滿足下列關係式:由於,因此,Dspacer-min=(PCD×sin θ×csc α+W×sin θ-D)/(1+sin θ)=2rIn addition, the pitch diameter PCD of the rolling module (ie, the center circle diameter of the upper and lower rollers 30 of the roller screw, as shown in FIG. 4) is adjacent to the track surface of the rolling track 23 of the roller 30. The minimum included angle is θ (as shown in FIG. 5), the inclination angle of the roller 30 is α (as shown in FIG. 8), the track width of the rolling track 23 is W, and the diameter of the roller 30 is D. Meet the following relationship: due to Therefore, Dspacer-min = (PCD × sin θ × csc α + W × sin θ - D) / (1 + sin θ) = 2 r .

又該間隔柱40的柱徑為Dspacer,該間隔柱40的柱高為Lspacer,該間隔柱40最大可量測的直線距離為Lspacer-max,滿足下列關係式:Lspacer-max=√(D2 spacer+L2 spacer)。Further, the column diameter of the spacer column 40 is Dspacer, and the column height of the spacer column 40 is Lspacer. The maximum measurable linear distance of the spacer column 40 is Lspacer-max, which satisfies the following relationship: Lspacer-max=√(D 2 spacer + L 2 spacer).

據此,當該滾柱30的柱徑D大於該間隔柱40的柱徑Dspacer時,得以確保裝設該間隔柱40後,該滾柱30所能裝設的數量不會大幅減少,避免降低該滾動模組的動負荷,另外,參閱第9、10圖所示,係沿該滾動模組的節圓直徑PCD展開,並忽略曲率效應,其中第9圖所示,係令該滾柱30的柱徑D等於該間隔柱40的柱徑Dspacer時,距離為2D,第10圖所示,本發明中係界定該間隔柱40的柱徑Dspacer小於該滾柱30的柱徑D,且本實施例中,該間隔柱40的柱徑Dspacer為該滾柱30的柱徑D的0.8倍 (0.9至0.2倍之間皆可),因此,相同距離增加了0.2倍該間隔柱40的柱徑Dspacer的負載空間,故可裝設的該滾柱30數量變為1.2倍,而更能提升該滾動模組的動負荷,並達到在不影響該間隔柱40功能性下,能擺放較多的滾柱30數量,以提升動負荷與減少組裝間隔柱40的工時。Accordingly, when the column diameter D of the roller 30 is larger than the column diameter Dspacer of the spacer column 40, it is ensured that the number of the roller 30 that can be installed after the spacer column 40 is installed is not greatly reduced, and the reduction is avoided. The dynamic load of the rolling module, in addition, as shown in Figures 9 and 10, is developed along the pitch circle diameter PCD of the rolling module, and the curvature effect is ignored, wherein the roller 30 is shown in Fig. 9. When the column diameter D is equal to the column diameter Dspacer of the spacer column 40, the distance is 2D. As shown in FIG. 10, in the present invention, the column diameter Dspacer of the spacer column 40 is smaller than the column diameter D of the roller 30, and In the embodiment, the column diameter Dspacer of the spacer 40 is 0.8 times the column diameter D of the roller 30. (Between 0.9 and 0.2 times), the same distance is increased by 0.2 times the load space of the column diameter Dspacer of the spacer 40, so that the number of the rollers 30 that can be installed becomes 1.2 times, and can be improved. The dynamic load of the rolling module reaches the number of rollers 30 that can be placed without affecting the functionality of the spacer 40 to increase the dynamic load and reduce the man-hours of assembling the spacers 40.

至於該間隔柱40的柱徑Dspacer與該滾柱30的柱徑D的比值,其與動負荷增加比例的關係如第11圖所示,該圖中所示由柱徑比縮小為0.9時,動負荷可提升6.6%;柱徑比縮小為0.8時,動負荷可提升12.9%直到極限柱徑比後則無法再增加。The ratio of the column diameter Dspacer of the spacer 40 to the column diameter D of the roller 30 is shown in Fig. 11 as shown in Fig. 11, when the column diameter ratio is reduced to 0.9. The dynamic load can be increased by 6.6%; when the column diameter ratio is reduced to 0.8, the dynamic load can be increased by 12.9% until the limit column diameter ratio can not be increased.

參閱第5圖所示,當該間隔柱40的柱徑Dspacer大於該間隔柱40的最小柱徑Dspacer-min時,得以確保該間隔柱40相鄰接的滾柱30彼此之間不會產生干涉,以增加滾柱30運轉時,相鄰滾柱30的迴流與換向的順暢度;參閱第12圖所示,由於本實施例中該間隔柱40的柱徑Dspacer為該滾柱30的柱徑D的0.8倍,因此,該間隔柱40相鄰接的滾柱30彼此之間確實不會產生干涉。Referring to FIG. 5, when the column diameter Dspacer of the spacer 40 is larger than the minimum column diameter Dspacer-min of the spacer 40, it is ensured that the adjacent rollers 30 of the spacer 40 do not interfere with each other. To increase the smoothness of the reflow and reversal of the adjacent rollers 30 when the roller 30 is in operation; as shown in FIG. 12, since the column diameter Dspacer of the spacer 40 is the column of the roller 30 in this embodiment Since the diameter D is 0.8 times, the adjacent rollers 30 of the spacer 40 do not interfere with each other.

參閱第6圖所示,當該滾柱30的柱徑D大於該間隔柱40的柱高Lspacer時,得以確保該間隔柱40不受力,以避免影響該滾柱30運轉時,相鄰滾柱30的迴流與換向的順暢度。Referring to FIG. 6, when the column diameter D of the roller 30 is greater than the column height Lspacer of the spacer column 40, it is ensured that the spacer column 40 is unstressed to avoid affecting the adjacent roller when the roller 30 is in operation. The backflow of the column 30 and the smoothness of the commutation.

參閱第7圖所示,當該間隔柱40最大可量測的直線距離Lspacer-max大於等於該滾動軌道23的軌寬W時,得以避免該間隔柱40在該滾動軌道23內傾倒,而影響該滾動模組運轉的順暢度。Referring to FIG. 7, when the maximum measurable linear distance Lspacer-max of the spacer 40 is greater than or equal to the rail width W of the rolling track 23, the spacer 40 is prevented from falling over the rolling track 23, and the influence is affected. The smooth operation of the rolling module.

綜上所述,上述實施例及圖示僅為本發明的較佳實施例而已,當不能以之限定本發明實施之範圍,即大凡依本發明申請專利範圍所作的 均等變化與修飾,皆應屬本發明專利涵蓋的範圍內。In view of the above, the above embodiments and illustrations are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, that is, the scope of the patent application of the present invention. Equivalent changes and modifications are within the scope of the invention.

21‧‧‧螺桿21‧‧‧ screw

211‧‧‧軸線211‧‧‧ axis

212‧‧‧外螺旋槽道212‧‧‧Spiral spiral channel

22‧‧‧螺帽22‧‧‧ Nuts

221‧‧‧內螺旋槽道221‧‧‧inner spiral channel

23‧‧‧滾動軌道23‧‧‧ rolling track

30‧‧‧滾柱30‧‧‧roller

40‧‧‧間隔柱40‧‧‧ spacer column

Claims (8)

一種滾動模組,適用於組設一滾動軌道內,該滾動模組包含:複數滾柱,同向排列地組設於該滾動軌道;複數間隔柱,同向排列地組設於該滾動軌道,且各該間隔柱的排列方向與各該滾柱的排列方向不同、及各該間隔柱與各該滾柱呈交錯排列及相互靠抵;該滾柱的柱徑為D,該間隔柱的柱徑為Dspacer,該間隔柱的最小柱徑為Dspacer-min,該間隔柱的柱高為Lspacer,該間隔柱最大可量測的直線距離為Lspacer-max,該滾動軌道的軌寬為W,滿足下列關係式:D>Dspacer>Dspacer-min;D>Lspacer;Lspacer-max≧W。 A rolling module is suitable for assembling a rolling track. The rolling module comprises: a plurality of rollers arranged in the same direction in the rolling track; a plurality of spaced columns arranged in the same direction in the rolling track. And the arrangement direction of each of the spacers is different from the arrangement direction of each of the rollers, and each of the spacers is staggered and abuts against each of the rollers; the column diameter of the roller is D, and the column of the spacer The diameter is Dspacer, the minimum column diameter of the spacer is Dspacer-min, the column height of the spacer is Lspacer, the maximum measurable linear distance of the spacer is Lspacer-max, and the track width of the rolling track is W, which satisfies The following relationship: D>Dspacer>Dspacer-min; D>Lspacer; Lspacer-max≧W. 如申請專利範圍第1項所述之滾動模組,其中該滾柱的柱徑為D,該間隔柱的柱徑為Dspacer,該間隔柱的最小柱徑為Dspacer-min,滿足下列關係式:0.9D>Dspacer>Dspacer-min。 The rolling module according to claim 1, wherein the roller has a column diameter D, the column diameter of the spacer column is Dspacer, and the minimum column diameter of the spacer column is Dspacer-min, which satisfies the following relationship: 0.9D>Dspacer>Dspacer-min. 如申請專利範圍第1項所述之滾動模組,其中該間隔柱的最小柱徑為Dspacer-min,該滾動模組的節圓直徑PCD,相鄰該滾柱於該滾動軌道之軌道面的最小夾角為θ,該滾柱傾斜角為α,該滾動軌道的軌寬為W,該滾柱的柱徑為D,滿足下列關係式:Dspacer-min=(PCD×sin θ×csc α+W×sin θ-D)/(1+sin θ)。 The rolling module of claim 1, wherein the minimum column diameter of the spacer is Dspacer-min, the pitch diameter PCD of the rolling module is adjacent to the track surface of the rolling track. The minimum angle is θ, the inclination angle of the roller is α, the track width of the rolling track is W, and the diameter of the roller is D, which satisfies the following relationship: Dspacer-min=(PCD×sin θ×csc α+W × sin θ - D) / (1 + sin θ). 如申請專利範圍第1項所述之滾動模組,其中該間隔柱的柱徑為Dspacer,該間隔柱的柱高為Lspacer,該間隔柱最大可量測的直線距離為Lspacer-max,滿足下列關係式:Lspacer-max=√(D2 spacer+L2 spacer)。The rolling module according to claim 1, wherein the spacer has a column diameter of Dspacer, and the column height of the spacer is Lspacer, and the maximum measurable linear distance of the spacer is Lspacer-max, which satisfies the following Relationship: Lspacer-max = √ (D 2 spacer + L 2 spacer). 一種具有滾動模組的滾柱螺桿,包含:一螺桿,具有一軸線以及一繞該軸線螺旋設置於外部的外螺旋槽道;一螺帽,是沿該軸線方向套設於該螺桿,並包含一繞該軸線螺旋設置於內部的內螺旋槽道,且該內螺旋槽道與外螺旋槽道形成一滾動軌道;一滾動模組,組設在該滾動軌道內,並包含複數滾柱及複數間隔柱,其中:各該滾柱,同向排列地組設於該滾動軌道;各該間隔柱,同向排列地組設於該滾動軌道,且各該間隔柱的排列方向與各該滾柱的排列方向不同、及各該間隔柱與各該滾柱呈交錯排列及相互靠抵;該滾柱的柱徑為D,該間隔柱的柱徑為Dspacer,該間隔柱的最小柱徑為Dspacer-min,該間隔柱的柱高為Lspacer,該間隔柱最大可量測的直線距離為Lspacer-max,該滾動軌道的軌寬為W,滿足下列關係式:D>Dspacer>Dspacer-min;D>Lspacer;Lspacer-max≧W。 A roller screw having a rolling module, comprising: a screw having an axis and an outer spiral channel spirally disposed around the axis; a nut disposed on the screw along the axis direction and including An inner spiral channel disposed spirally around the axis, and the inner spiral channel and the outer spiral channel form a rolling track; a rolling module is disposed in the rolling track and includes a plurality of rollers and a plurality a spacer, wherein: the rollers are arranged in the same direction on the rolling track; each of the spacers is arranged in the same direction in the rolling track, and the arrangement direction of each of the spacers and each of the rollers The arrangement direction is different, and each of the spacer columns is staggered and abuts against each of the rollers; the column diameter of the roller is D, the column diameter of the spacer column is Dspacer, and the minimum column diameter of the spacer column is Dspacer -min, the column height of the spacer is Lspacer, the maximum measurable linear distance of the spacer is Lspacer-max, and the track width of the rolling track is W, which satisfies the following relationship: D>Dspacer>Dspacer-min;D >Lspacer; Lspacer-max≧W. 如申請專利範圍第5項所述之具有滾動模組的滾柱螺桿,其中該滾柱的柱徑為D,該間隔柱的柱徑為Dspacer,該間隔柱的最小柱徑為Dspacer-min, 滿足下列關係式:0.9D>Dspacer>Dspacer-min。 The roller screw with a rolling module according to claim 5, wherein the roller has a column diameter D, the column diameter of the spacer column is Dspacer, and the minimum column diameter of the spacer column is Dspacer-min. The following relationship is satisfied: 0.9D>Dspacer>Dspacer-min. 如申請專利範圍第5項所述之具有滾動模組的滾柱螺桿,其中該間隔柱的最小柱徑為Dspacer-min,該滾動模組的節圓直徑PCD,相鄰該滾柱於該滾動軌道之軌道面的最小夾角為θ,該滾柱傾斜角為α,該滾動軌道的軌寬為W,該滾柱的柱徑為D,滿足下列關係式:Dspacer-min=(PCD×sin θ×csc α+W×sin θ-D)/(1+sin θ)。 The roller screw with a rolling module according to claim 5, wherein the minimum column diameter of the spacer is Dspacer-min, and the pitch diameter PCD of the rolling module is adjacent to the roller. The minimum angle of the track surface of the track is θ, the angle of inclination of the roller is α, the track width of the rolling track is W, and the diameter of the roller is D, which satisfies the following relationship: Dspacer-min=(PCD×sin θ ×csc α+W×sin θ-D)/(1+sin θ). 如申請專利範圍第5項所述之具有滾動模組的滾柱螺桿,其中該間隔柱的柱徑為Dspacer,該間隔柱的柱高為Lspacer,該間隔柱最大可量測的直線距離為Lspacer-max,滿足下列關係式:Lspacer-max=√(D2 spacer+L2 spacer)。The roller screw with a rolling module according to claim 5, wherein the spacer has a column diameter of Dspacer, the column height of the spacer is Lspacer, and the maximum measurable linear distance of the spacer is Lspacer. -max, which satisfies the following relationship: Lspacer-max = √ (D 2 spacer + L 2 spacer).
TW102120476A 2013-06-10 2013-06-10 Rolling module and a roller screw having the rolling module TWI506214B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4795277A (en) * 1986-10-03 1989-01-03 Riv-Skf Officine Di Villar Perosa S.P.A. Support element of improved type for a vehicle wheel
US4896974A (en) * 1987-12-23 1990-01-30 Nippon Thompson Co., Ltd. Spherical spacer of a crossed roller bearing assembly
JPH11210858A (en) * 1998-01-19 1999-08-03 Koyo Mach Ind Co Ltd Circulation type screw device
TWI258543B (en) * 2005-08-16 2006-07-21 Prec Motion Ind Inc Bead lead screw with ball space keeper
TWI304118B (en) * 2005-10-26 2008-12-11 Hiwin Tech Corp Roller screw mechanism
TWI311178B (en) * 2007-01-26 2009-06-21 Hiwin Tech Corp Ballscrew with sapcers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4795277A (en) * 1986-10-03 1989-01-03 Riv-Skf Officine Di Villar Perosa S.P.A. Support element of improved type for a vehicle wheel
US4896974A (en) * 1987-12-23 1990-01-30 Nippon Thompson Co., Ltd. Spherical spacer of a crossed roller bearing assembly
JPH11210858A (en) * 1998-01-19 1999-08-03 Koyo Mach Ind Co Ltd Circulation type screw device
TWI258543B (en) * 2005-08-16 2006-07-21 Prec Motion Ind Inc Bead lead screw with ball space keeper
TWI304118B (en) * 2005-10-26 2008-12-11 Hiwin Tech Corp Roller screw mechanism
TWI311178B (en) * 2007-01-26 2009-06-21 Hiwin Tech Corp Ballscrew with sapcers

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