TW201217663A - Transmission element having dust-proof device - Google Patents

Transmission element having dust-proof device Download PDF

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Publication number
TW201217663A
TW201217663A TW99135467A TW99135467A TW201217663A TW 201217663 A TW201217663 A TW 201217663A TW 99135467 A TW99135467 A TW 99135467A TW 99135467 A TW99135467 A TW 99135467A TW 201217663 A TW201217663 A TW 201217663A
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TW
Taiwan
Prior art keywords
hole
dustproof device
nut
disposed
rolling groove
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Application number
TW99135467A
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Chinese (zh)
Inventor
Jhe-Kun Liou
Original Assignee
Hiwin Tech Corp
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Priority to TW99135467A priority Critical patent/TW201217663A/en
Publication of TW201217663A publication Critical patent/TW201217663A/en

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Abstract

The present invention relates to a transmission element having a dust-proof device. The dust-proof device is disposed at two ends of a nut module of the transmission element. The dust-proof device has two end surfaces and a through hole. One of the two end surfaces is disposed toward the interior of a hole of the nut module, and the other end surface is disposed toward the exterior of the hole of the nut module. The through hole is adapted for insertion of an axle of the transmission element. The inner surface of the through hole has a protruding portion toward a rolling groove of the axle. The distal end of the protruding portion has a guide surface. The guide surface slants from the end surface toward the through hole. The guide surface is used to clear dust (foreign material) from the axle.

Description

201217663 六、發明說明: 【發明所屬之技術領域】 本發明係為一種線性傳動元件之防塵裝置,尤指 一種應用於滾珠(滾柱)螺桿的防塵裝置。 【先前技術】 請參閱圖一、圖二及圖三所示,係為一種習知傳 動元件之防塵裝置’該傳動元件係包含:一螺桿(1 ), 其外緣設有螺旋狀之滾動溝(11 ),一螺帽(2 ),係設 有一供該螺桿(1)穿設之穿孔(21),該穿孔(21) 内緣設有相對該滾動溝(11)之滚動槽(211),該滾 動溝(11)及滾動槽(211)係提供複數個滾動件(χ) 设置,該防塵裝置(3)係裝設於該螺帽(2)之兩端 部,並以複數固定件(G)穿設於螺帽(2)徑向表面 後抵頂於該防塵裝置(3)表面,將該防塵裝置(3) 固定,該防塵裝置(3)設有一供該螺桿(i)穿設之 通孔(31),該通孔(31)係設有相對該滾動溝(u ) 凸伸設置到刷部(311 ),而藉由該到刷部(311)以防 止粉塵(異物)(E)入侵螺帽(2)内部,使滾動件(X) 能順暢運行。但此習知的防塵裝置仍有以下問題點: 因為該防塵裝置外側端部與該螺帽端面為平行設 置故該防塵裝置隨著該螺帽經過一段時間的運行 後,該防塵裝置外側端部會堆積許多粉塵(異物)而 201217663 無法順利排除,而粉塵(異物)也隨者該螺帽運行, 並接觸該螺桿之滾動溝與該滾動溝產生摩擦,相對也 會造成滾動溝表面產生磨損,故造成滾動件運行時不 順暢,嚴重則造成傳動元件損壞報廢。故此問題點仍 需加以改良精進。 【發明内容】 基於上述習知技術之問題點,本發明人經過研究 改良後,終有確能達成以下發明之目的之發明誕生。 即,本發明首要目的在於,研發一種可將披覆於 傳動元件之長軸上的粉塵(異物)排除的防塵裝置。 為達上述之目的,本發明係為一種具防塵裝置之 傳動元件,係包含: 一長軸,其外型係為長條狀,其外緣面設有螺旋 狀之滚動溝; 一螺帽模組,其具有迴流道及穿孔,該穿孔係提 供該長轴穿設,且該穿孔内緣面設有相對該滚動溝之 滚動槽,該滾動溝及滾動槽係構成一負荷路徑,該負 荷路徑係與該迴流道銜接構成一循環路徑; 複數滾動體,係容設於該循環路徑; 防塵裝置,其裝設於該螺帽模組的兩端,該防塵 裝置係具有兩端面及一通孔,該兩端面之其中一端面 係朝該穿孔的内部設置,另一端面係朝該穿孔的外部 201217663 設置,該通孔係提供該長軸穿設,且該通孔内面設有 朝該滾動溝凸設之凸伸部,該凸伸部之末端係設有一 導引面,該導引面係由該端面朝該通孔傾斜設置,使 該導引面與該端面具有一夾角。 其中,該螺帽模組包含螺帽及迴流元件,該迴流 元件係設置於該螺帽,而該穿孔係設置於該螺帽,該 防塵裝置係設置於該螺帽兩端;該迴流道係設置於該 ® 迴流元件。 其中,該螺帽模組更包含一固定件,該固定件係 用以將該迴流元件固定於該螺帽。 其中,該凸伸部係與該滾動溝接觸。 其中,該防塵裝置之端面更設有一端與該導引面 銜接之導引溝,而該導引溝另一端係延伸出該防塵裝 置之徑向面,使該徑向面具有一徑向開口。 • 其中,該導引溝所延伸之路徑係與該負荷路徑呈 相切設置。 為了更進一步瞭解本發明之特徵及技術内容,請 參閱以下有關本發明之實施方式說明及圖式,然而此 實施方式及圖式僅供說明及參考用,而非用以對本發 明做任何限制者。 【實施方式】 請參閱圖四至圖七及圖八A、B所示,係為本發 201217663 明第一實施例,本發明係為一種具防塵裝置之傳動元 件,係包含: 一長軸(1),其外型係為長條狀,其外緣面(11) 設有螺旋狀之滾動溝(U1); 一螺帽模組,其包含一螺帽(2)、一迴流元件(3) 及固定件(6),該螺帽(2)具有一穿孔⑵),該穿 孔(21)係提供該長軸(丨)穿設,且該穿孔(21)之 内緣面(211)設有相對該滾動溝(111)之滾動槽 (2111) ’該滾動溝(Ul)及滾動槽(2111)係構成 一負荷路徑(90);該迴流元件(3)係藉由該固定件 (6)將其固定於螺帽(2),該迴流元件(3)外型概 呈π字型’其具有一迴流道(31),該迴流道(31)係 與該負荷路徑(90)銜接構而成一循環路徑(註:該 迴流元件亦可為複數個,且裝設位置亦可與本實施例 不同’例如:裝設於該螺帽兩端型式的迴流元件); 複數滾動體(4) ’係容設於該循環路徑; 防塵裝置(5) ’其裝設於該螺帽的兩端,該 防塵裝置(5)係具有兩端面(52)及一通孔(51), 兩該端面(52)之其中一端面(π)係朝該穿孔(21) 的内部(T2)設置,另一端面(π)係朝該穿孔(21) 的外部(T1)設置,該通孔(51)係提供該長軸 穿設’且該通孔(51)之内面(511)設有朝該滾動溝 201217663 (111)凸設之凸伸部(5111),該凸伸部(5Π1)之 末端係設有一導引面(51111),該導引面(5ΐπΐ)係 由該端面(52)朝該通孔(51 )傾斜設置,使該導引 面(51111)與該端面(52)具有一夾角(r);請特參 圖八A及圖八B,由圖中可清楚得知該導引面 與滾動溝(111)之表面具有一夾角,而藉由該凸伸部 (5111)與該滾動溝(in )接觸,使粉塵(異物)(E) 無法通過該凸伸部,而使該粉塵(異物)只能順 者該導引面(51111)朝該螺帽(2)之徑方向(X)脫 離,而使粉塵(異物)(E)不會堆積於螺帽(2)之端 部,並能大幅降低粉塵(異物)(E)與該長軸(丨)之 滾動溝(111)及凸伸部(5111)的相互磨耗,以提升 傳動元件之使用壽命。 請參閱圖九至圖十二及圖十三A、B所示係為本 發明第一貫施例,本實施例與第一實施例不同在於: 該防塵裝置(5)之端面(52)更設有一端與該導引面 (51111)銜接之導引溝(521),而該導引溝(521) 另一端係延伸出該防塵裝置(5)之徑向面(53),使 該徑向面(53)具有一徑向開口(5211),且該導引溝 (521)所延伸之路徑係與該負荷路徑(9〇)呈相切設 置’請特參圖十二、圖十三厶及圖十三8所示,由圖 可清楚得知藉由該導引溝(521)的設置使粉塵(異物) 201217663 (E)能順著導引溝(521)的路徑來運行至該徑向開 口(5211),進而使粉塵(異物)(E)脫離該防塵裝置 (5),以達到排除粉塵(異物)(E)的效果;如此一 來,即可限制粉塵(異物)(E)之運行路徑,且最方 便的是,可於該導引溝(521)之徑向開口(5211)處 設置一集塵裝置(未顯示),使粉塵(異物)(E)不會 分散於該螺帽(2)運行的路徑之周圍,相對於清理時 也較為方便。而其餘元件之組態及所能產生功效與第 一實施例相同,在此不再多作贅述。 综所上述,所以本發明之『具有產業之可利用性』 應已毋庸置疑,除此之外,在本案實施例所揭露出的 特徵技術,於申請之前並未曾見於諸刊物,亦未曾被 公開使用,不但具有如上所述功效增進之事實,更具 有不可輕忽的附加功效,是故,本發明的『新穎性』 以及『進步性』都已符合專利法規,爰依法提出發明 專利之申請,祈請惠予審查並早曰賜准專利,實感德 便。 以上所述實施例之揭示係用以說明本發明,並非 用以限制本發明,故舉凡數值之變化與等效元件之置 換,仍應隸屬本發明之範疇。 201217663 【圖式簡單說明】 圖一係為習知技術之防塵裝置與傳動元件分解 圖。 圖二係為圖一防塵裝置組裝至傳動元件後的A — A剖視圖,且螺桿外緣具有粉塵。 圖二係為圖一防塵裝置組裝至傳動元件後的A— A剖視圖,而防塵裝置運行過有粉塵處後,使粉塵堆 積於防塵裝置之一側。 圖四係為本發明第一實施例防塵裝置之立體圖。 圖五係為本發明第一實施例防塵裝置另一視角之 立體圖。 圖六係為本發明第一實施例具防塵裝置之傳動元 件立體分解圖。 圖七係為本發明第一實施例具防塵裝置之傳動元 件立體組合圖。 圖八A係為圖七A — A剖視圖,並顯示有防塵裝 置將粉塵(異物)帶離長軸之示意圖。 圖八B係為圖七A —A剖視圖,並顯示有防塵裝 置將粉塵(異物)帶離長軸之示意圖。 圖九係為本發明第二實施例防塵裝置之立體圖。 圖十係為本發明第二實施例防塵裝置另一視角之 立體圖。201217663 VI. Description of the Invention: [Technical Field] The present invention relates to a dustproof device for a linear transmission component, and more particularly to a dustproof device for a ball (roller) screw. [Prior Art] Please refer to FIG. 1 , FIG. 2 and FIG. 3 , which is a dustproof device of a conventional transmission component. The transmission component comprises: a screw (1 ) having a spiral rolling groove on the outer edge thereof. (11), a nut (2) is provided with a through hole (21) through which the screw (1) is inserted, and the inner edge of the through hole (21) is provided with a rolling groove (211) opposite to the rolling groove (11). The rolling groove (11) and the rolling groove (211) are provided with a plurality of rolling elements (3), and the dustproof device (3) is installed at both ends of the nut (2) and fixed in plural The piece (G) is disposed on the radial surface of the nut (2) and abuts against the surface of the dustproof device (3) to fix the dustproof device (3), and the dustproof device (3) is provided with the screw (i) a through hole (31) is provided, and the through hole (31) is provided to protrude from the rolling groove (u) to the brush portion (311), and the brush portion (311) is used to prevent dust (foreign matter) (E) Invade the inside of the nut (2) to allow the rolling element (X) to run smoothly. However, the conventional dustproof device still has the following problems: Since the outer end portion of the dustproof device is disposed in parallel with the end surface of the nut, the dustproof device is installed at the outer end portion of the dustproof device after the nut has been operated for a period of time. Will accumulate a lot of dust (foreign matter) and 201217663 can not be successfully eliminated, and the dust (foreign matter) also runs with the nut, and the rolling groove contacting the screw generates friction with the rolling groove, which also causes wear on the surface of the rolling groove. Therefore, the rolling element is not smooth when it is running, and the transmission component is damaged and scrapped. Therefore, the problem still needs to be improved. SUMMARY OF THE INVENTION Based on the problems of the above-described conventional techniques, the inventors of the present invention have succeeded in research and improvement, and the invention of the following inventions can be finally achieved. That is, the primary object of the present invention is to develop a dustproof device that can remove dust (foreign matter) that is coated on the long shaft of the transmission member. In order to achieve the above object, the present invention is a transmission component with a dustproof device, comprising: a long shaft, the outer shape of which is elongated, and the outer peripheral surface thereof is provided with a spiral rolling groove; a nut a module having a return passage and a through hole, the through hole providing the long shaft, and the inner edge surface of the through hole is provided with a rolling groove opposite to the rolling groove, and the rolling groove and the rolling groove form a load path. The load path is coupled to the return path to form a circulation path; a plurality of rolling elements are disposed in the circulation path; and a dustproof device is disposed at both ends of the nut module, the dustproof device having both end faces and a through hole, one of the end faces is disposed toward the inside of the through hole, and the other end face is disposed toward the outer portion 201217663 of the through hole, the through hole provides the long shaft through, and the inner surface of the through hole is provided The protruding portion of the rolling groove is provided with a guiding surface, and the guiding surface is inclined from the end surface toward the through hole, so that the guiding surface has an angle with the end surface. The nut module includes a nut and a reflow element, the reflow element is disposed on the nut, and the perforation is disposed on the nut, and the dustproof device is disposed at two ends of the nut; the return channel is Set on the ® reflow element. Wherein, the nut module further comprises a fixing member for fixing the return element to the nut. Wherein the protruding portion is in contact with the rolling groove. Wherein, the end surface of the dustproof device is further provided with a guiding groove whose one end is engaged with the guiding surface, and the other end of the guiding groove extends out of the radial surface of the dustproof device, so that the radial mask has a radial opening . • The path extended by the guiding groove is tangential to the load path. In order to further understand the features and technical aspects of the present invention, reference should be made to the description of the embodiments of the present invention and the accompanying drawings. . [Embodiment] Please refer to FIG. 4 to FIG. 7 and FIG. 8A and B, which are the first embodiment of the present invention 201217663. The present invention is a transmission component with a dustproof device, comprising: a long axis (1) ), the outer shape is elongated, the outer edge surface (11) is provided with a spiral rolling groove (U1); a nut module comprising a nut (2) and a reflow element (3) And a fixing member (6), the nut (2) has a through hole (2), the through hole (21) provides the long axis (丨), and the inner edge surface (211) of the hole (21) is provided The rolling groove (2111) relative to the rolling groove (111) 'the rolling groove (Ul) and the rolling groove (2111) constitute a load path (90); the reflow element (3) is by the fixing member (6) Fixing it to the nut (2), the reflow element (3) has a shape of π-shaped 'having a return passage (31), and the return passage (31) is engaged with the load path (90) In a loop path (Note: the reflow element can also be plural, and the mounting position can also be different from the embodiment), for example: a reflow element mounted on both ends of the nut); The body (4) is disposed in the circulation path; the dustproof device (5) is mounted on both ends of the nut, and the dustproof device (5) has two end faces (52) and a through hole (51). One of the end faces (π) of the end faces (52) is disposed toward the inside (T2) of the through hole (21), and the other end face (π) is disposed toward the outside (T1) of the through hole (21), the through hole (51) providing the long shaft through-' and the inner surface (511) of the through hole (51) is provided with a convex portion (5111) protruding toward the rolling groove 201217663 (111), the protruding portion (5Π1) The end surface is provided with a guiding surface (51111), and the guiding surface (5ΐπΐ) is inclined from the end surface (52) toward the through hole (51), so that the guiding surface (51111) and the end surface (52) Having an angle (r); please refer to FIG. 8A and FIG. 8B. It can be clearly seen from the figure that the guiding surface has an angle with the surface of the rolling groove (111), and by the protruding portion (5111) ) contacting the rolling groove (in) so that the dust (foreign matter) (E) cannot pass through the protruding portion, so that the dust (foreign matter) can only follow the guiding surface (51111) toward the nut (2) The direction of the diameter (X) is detached. The dust (foreign matter) (E) is not deposited on the end of the nut (2), and the dust (foreign matter) (E) and the rolling groove (111) and the projection of the long axis (丨) are greatly reduced ( 5111) mutual wear to improve the service life of the transmission components. Referring to FIG. 9 to FIG. 12 and FIG. 13A and FIG. 3B, the first embodiment of the present invention is different from the first embodiment in that: the end surface (52) of the dustproof device (5) is further a guiding groove (521) having one end engaged with the guiding surface (51111), and the other end of the guiding groove (521) extending from a radial surface (53) of the dustproof device (5), so that the diameter The face (53) has a radial opening (5211), and the path extending by the guiding groove (521) is tangential to the load path (9〇). Please refer to Figure 12 and Figure 13. As shown in Fig. 13 and Fig. 8, it can be clearly seen from the figure that the dust (foreign matter) 201217663 (E) can be operated along the path of the guiding groove (521) by the arrangement of the guiding groove (521). The radial opening (5211) further removes the dust (foreign matter) (E) from the dustproof device (5) to achieve the effect of removing the dust (foreign matter) (E); thus, the dust (foreign matter) can be restricted (E) The operation path, and most conveniently, a dust collecting device (not shown) may be disposed at the radial opening (5211) of the guiding groove (521) so that the dust (foreign matter) (E) does not Dispersed in the nut (2) around the path of the running, but also with respect to cleaning more convenient. The configuration of the remaining components and the functions that can be produced are the same as those of the first embodiment, and will not be further described herein. In view of the above, the "industry availability" of the present invention should be unquestionable. In addition, the feature technology disclosed in the embodiment of the present invention has not been seen in publications before the application, nor has it been disclosed. The use not only has the fact that the effect is improved as described above, but also has an additional effect that cannot be neglected. Therefore, the "novelty" and "progressiveness" of the present invention are in compliance with the patent regulations, and the application for the invention patent is filed according to law. Please give us a review and give us a patent as soon as possible. The above description of the embodiments is intended to be illustrative of the invention, and is not intended to limit the scope of the invention. 201217663 [Simple description of the drawings] Figure 1 is an exploded view of the dustproof device and transmission components of the prior art. Figure 2 is a cross-sectional view taken along line A - A of Figure 1 after the dust-proof device is assembled to the transmission element, and the outer edge of the screw has dust. Fig. 2 is a cross-sectional view taken along line A-A of Fig. 1 after the dustproof device is assembled to the transmission component, and the dustproof device is piled on one side of the dustproof device after the dustproof device has been operated with the dust. Figure 4 is a perspective view of the dustproof device of the first embodiment of the present invention. Fig. 5 is a perspective view showing another perspective of the dustproof device of the first embodiment of the present invention. Fig. 6 is a perspective exploded view of a transmission member having a dustproof device according to a first embodiment of the present invention. Figure 7 is a perspective assembled view of a transmission element with a dustproof device according to a first embodiment of the present invention. Fig. 8A is a cross-sectional view of Fig. 7A-A, and shows a dustproof device for taking dust (foreign matter) away from the long axis. Fig. 8B is a cross-sectional view taken along line A-A of Fig. 7, and shows a dustproof device for taking dust (foreign matter) away from the long axis. Figure 9 is a perspective view of a dustproof device according to a second embodiment of the present invention. Fig. 10 is a perspective view showing another perspective of the dustproof device of the second embodiment of the present invention.

9 201217663 圖十知為本發明第二實施例具防塵裝置之傳動 元件立體分解圖。 圖十二係為本發明第二實施例具防塵裝 置之傳動 元件端視圖,並顯示導引面與長軸之滾動溝配合之变 態。 圖十二A係為本發明圖七八—A剖視圖,並顯示 有防塵裝置將粉塵(異物)帶離長軸之示意圖。 圖十二B奋為本發明圖七A — A剖視圖,並顯示 有防塵裝置將粉塵(異物)帶離長軸之示意圖。 2012176639 201217663 FIG. 10 is a perspective exploded view of a transmission component of a dustproof device according to a second embodiment of the present invention. Fig. 12 is an end view of the transmission element of the dustproof device according to the second embodiment of the present invention, and shows the deformation of the guide groove and the rolling groove of the long axis. Figure 12A is a cross-sectional view of the Figure 7-8-A of the present invention, and shows a dustproof device for carrying dust (foreign matter) away from the long axis. Figure 12B is a cross-sectional view of Figure 7A-A of the present invention, and shows a dustproof device for taking dust (foreign matter) away from the long axis. 201217663

【主要元件符號說明】 習知技術 1 螺桿 1 1 滚動溝 2 螺帽 2 1 穿孔 2 1 1 滚動槽 3 防塵裝置 3 1 通孔 3 1 1 刮刷部 X 滾動件 E 粉塵(異物) G 固定件 本發明 1 長軸 1 1 外緣面 1 1 1 滚動溝 2 螺帽 2 1 穿孔 2 1 1 内緣面 2 1 11 滚動槽 9 0 負荷路徑 3 迴流元件 3 1 迴流道 4 滾動體 5 防塵裝置 5 1 通孔 5 1 1 内面 5 1 11 凸伸部 5 1 111 導引 5 2 端面 5 2 1 導引溝 5 2 11 徑向開口 5 3 徑向面 6 固定件 E 粉塵(異物) X 徑方向 R 夾角 T 1 外部 T 2 内部[Main component symbol description] Conventional technology 1 Screw 1 1 Rolling groove 2 Nut 2 1 Perforation 2 1 1 Rolling groove 3 Dust prevention device 3 1 Through hole 3 1 1 Wiper part X Rolling element E Dust (foreign matter) G Fixing member The present invention 1 Long shaft 1 1 Outer edge surface 1 1 1 Rolling groove 2 Nut 2 1 Perforation 2 1 1 Inner edge surface 2 1 11 Rolling groove 9 0 Load path 3 Reflow element 3 1 Return path 4 Rolling element 5 Dustproof device 5 1 Through hole 5 1 1 Inner surface 5 1 11 Projection 5 1 111 Guide 5 2 End face 5 2 1 Guide groove 5 2 11 Radial opening 5 3 Radial surface 6 Fixing piece E Dust (foreign matter) X radial direction R angle T 1 external T 2 interior

Claims (1)

201217663 七、申請專利範圍·· 1 ·一種具防塵裝置之傳動元件,係包含: 一長軸,其外型係為長條狀,其外緣面設有螺旋 狀之滚動溝; 一螺帽模組,其具有迴流道及穿孔,該穿孔係提 供該長軸穿設,且該穿孔内緣面設有相對該滾動溝之 滾動槽,該滚動溝及滚動槽係構成一負荷路徑,該負 荷路徑係與該迴流道銜接構成一循環路徑; 複數滾動體,係容設於該循環路徑; 防塵裝置,其裝設於該螺帽模組的兩端,該防塵 裝置係具有兩端面及一通孔,該兩端面之其中一端面 係朝該穿孔的内部設置,另一端面係朝該穿孔的外部 設置,該通孔係提供該長軸穿設,且該通孔内面設有 朝該滾動溝凸設之凸伸部,該凸伸部之末端係設有一 導引面,該導引面係由該端面朝該通孔傾斜設置,使 該導引面與該端面具有一失角。 2 ·如請求項1所述之具防塵裝置之傳動元件,其中, 該螺帽模組包含螺帽及迴流元件,該迴流元件係設置 於該螺帽,而該穿孔係設置於該螺帽,該防塵裝置係 設置於該螺帽兩端;該迴流道係設置於該迴流元件。 3 ·如請求項2所述之具防塵裝置之傳動元件,其中, 該螺帽模組更包含一固定件,該固定件係用以將該迴 12 201217663 流元件固定於該螺帽β 4 .如請求項1所述之具防塵裝置之傳動元件,其中, 該凸伸部係與該滾動溝接觸。 5 .如請求項1所述之具防塵裝置之傳動元件,其中, 該防塵裝置之端面更設有一端與該導引面銜接之導引 溝’而該導引溝另一端係延伸出該防塵裝置之徑向 面’使該徑向面具有一徑向開口。 6 _如請求項5所述之具防塵裝置之傳動元件,其中, 該導引溝所延伸之路徑係與該負荷路徑呈相切設置。201217663 VII. Patent Application Range·· 1 · A transmission component with dustproof device, comprising: a long shaft, the outer shape is elongated, and the outer edge surface is provided with a spiral rolling groove; a nut a module having a return passage and a through hole, the through hole providing the long shaft, and the inner edge surface of the through hole is provided with a rolling groove opposite to the rolling groove, and the rolling groove and the rolling groove form a load path. The load path is coupled to the return path to form a circulation path; a plurality of rolling elements are disposed in the circulation path; and a dustproof device is disposed at both ends of the nut module, the dustproof device having both end faces and a through hole, one of the end faces is disposed toward the inside of the through hole, and the other end face is disposed toward the outside of the through hole, the through hole provides the long shaft through, and the inner surface of the through hole is provided toward the rolling The protruding portion of the groove is provided with a guiding surface, and the guiding surface is inclined from the end surface toward the through hole, so that the guiding surface and the end surface have a lost angle. The transmission component of the dustproof device of claim 1, wherein the nut module comprises a nut and a reflow element, the reflow element is disposed on the nut, and the perforation is disposed on the nut. The dustproof device is disposed at both ends of the nut; the return channel is disposed on the reflow element. The transmission component of the dustproof device of claim 2, wherein the nut module further comprises a fixing member for fixing the back 12 201217663 flow element to the nut β 4 . The transmission component of the dustproof device of claim 1, wherein the protruding portion is in contact with the rolling groove. The transmission component of the dustproof device of claim 1, wherein the end surface of the dustproof device further has a guiding groove connected to the guiding surface at one end, and the other end of the guiding groove extends the dustproof The radial face of the device 'has a radial opening to the radial mask. The transmission component of the dustproof device of claim 5, wherein the path extending by the guiding groove is tangential to the load path.
TW99135467A 2010-10-18 2010-10-18 Transmission element having dust-proof device TW201217663A (en)

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