1289179 九、發明說明： 【發明所屬之技術領域】 本發明係一種滾珠螺桿靜音結構，特別是指在螺帽内 部設有迴流通孔且至少具有一溝槽可容置複合材料，其能達成 ， 降低噪音、自潤減振的效果。 【先前技術】 .現今的滾珠螺桿於工業方面之應用愈來愈多，除了作 為線性進給傳動的高精密度效果之外，其他更有摩擦耗相 率小、能量轉換率高、及高剛度不易損壞等優點，因此， 滾珠螺桿對於現今各種工業應用機具等重要性也不言可 喻。 滾珠螺桿的設計為了讓螺桿及螺帽之間的滚珠能夠不 斷循環、消除應力，皆會在嫘帽二端對應螺桿嫘牙及滚珠 •裝設迴流元件；而造成上述迴流元件則是讓滚珠螺桿内部 的滾珠在於螺桿、螺帽間作動結束再迴流的關鍵，此時滚 珠與迴流元件的内壁會不斷撞擊、磨擦而產生噪音；所以，如何 針對滾珠螺桿產生嗓音問題，提出研發改良出更具競爭力的 產品自然成為目前業界之重點。 請參閱第1圖、第2圖所示之美國專利案公開公告第 US 5,749,266號圖式，圖所公開之習知技術是具有外循環 1289179 式的滚珠螺桿，藉此圖示組合結構來分職明： 當今的做法，通常在螺桿轴（1 〇 1)之螺紋牙柙（、n 2 >上設置潤滑材料（i i 2 );以及在螺 ^ 1 0 紋牙槽（1…上.凹槽（13)，在凹槽^ 放入潤滑材料（14)，此作法通常是做為潤滑滾珠（1内 =無背隙的情況下’_ )螺紋牙槽（102)與螺帽（103)螺紋牙槽 、1 0 4)之間滾動。 ' 改進對此f用產品在經過實用之後仍有轩問題極待研發 在^先，當滾珠（1 1 〇)承受螺帽（工〇 3 )的自重而 作1荷區域時，由於滾珠(11 〇)在負荷區域經過長期運 之下可能會導致變形磨損，會讓整體之產品壽命縮短； 其次，一般滾珠螺桿的噪音來源通常來自於滾珠（i i 〇 ) 連續揸擊在迴流通道（1 ο 7A)的内壁，深究其原因在於 j L通道（10 7A)的孔徑大於滚珠（11〇)直徑，故滾珠 1 1 〇)並非整齊的直線排列，而是類似蛇形的與卜列，因此滾 珠（1 1 η、 丄丄ϋ)與迴流通道（1〇 7 Α)的内壁會不斷撞擊、磨擦 而產生噪音； 再者’習知技術在螺紋牙槽（1 0 2 )内部必需進行凹 槽（Ί 丄3)加工，在製造精密度上具有一定的困難度，並 1289179 :在凹槽(1 3 )内設置潤滑材料（丄4 )僅是保有潤滑而^ 未具減振效果，且可能會有不容易貼覆固定的情形。 為了π夠有效解決前述相關議題，本發明創作人基於 過去在滾珠螺桿領域所累積的研發技術與經驗，認為有改 。之义要性，終於發展出—種全新的滾珠螺桿靜音結構。 【發明内容】 籲 本U之主要目的係提供—種其輯成降低料、自潤減振 效果的滾珠螺桿靜音結構； 又 為達成上述目的，本翻的滾珠螺桿靜音結構，藉由螺桿、 .螺帽、成對之迴流元件、迴流管及滾柱組裝而成 ’該螺桿轴，复 ，外表面具有螺桿牙槽；且該螺帽，可容納螺桿軸穿設於其中，其 内—目對應於螺桿軸之螺帽牙槽；且該迴流元件，内部具 有k «·0|：供牙槽内的滾動元件通過；且複數個滚動元件，其 籲在牙槽所限疋之空間内滾動以通過螺帽及迴流元件，作一無限猶 環迴^其中’該螺帽在内部設有提供迴流元件嵌設的容置槽以 及頂罪®並且在頂靠面上設有迴流通孔，供滚動元件通過並 與迴流元件的迴流通道相連接； 藉由前述之迴流通孔周圍至少具有一溝槽可容置複合材 料；除了可以解決滾動元件與迴流孔的内壁撞擊所產生成 音的問題，又能達成降低噪音、自潤減振的效果。" 1289179 有關本案發明為達成上述目的、所採用之技術，手段 及其他功效，茲列舉一個較佳實施例並配合_式詳細說明 如後，相信本案發明之目的、特徵及其他優點，當可由之 得一深入而具體之瞭解。 【實施方式】 本發明實施例請參閲第3圖至第11圖，本發明實施 例包含有螺桿轴（1 )、螺帽（3 )、複合材料（7)、成對 迴流元件（8 )、及複數個滾動元件（9 )組裝而成；該螺 桿軸（1 )，其外表面具有螺桿牙槽（2 );且該螺帽（3 ), 可容納螺桿軸(1 )穿設於其中’其内表面具有相對二螺桿軸 (1 )之螺帽牙槽(4 );且該迴流元件（8 )，内部具有迴流 通道（50 ’供牙槽内的滾動元件（9 )通過；且複數個滚 動兀件一（9 )’其在牙槽所限定之空間内滾動以通過螺帽(3 ) 及迴流耕（8 )，作-無限循環迴流； 其^ ’邊螺帽(3)在内部設有提供迴流元件（8) 嵌設的容置槽（5 )以及頂貪而r ς 、 、a頂罪面（5a)，並且在頂靠面（ a )上没有迴流通孔（5 徂么 0 、π, Db)供滾動元件（9)通過並虚 迴流凡件⑻的迴料道（8 〇相連接； - f斤述即為本發明各相韻元件的相互關係位置及 其概述，在此一併述明。1289179 IX. Description of the Invention: [Technical Field] The present invention relates to a ball screw mute structure, in particular to a recirculation through hole in a nut and at least one groove for accommodating a composite material, which can be achieved, Reduce noise, self-lubrication and vibration reduction. [Prior Art] Today's ball screws are used more and more in industry, in addition to the high precision effect of the linear feed drive, other frictional phase loss rate, high energy conversion rate, and high stiffness. It is not easy to damage, so the importance of the ball screw for today's various industrial applications is not to mention. The design of the ball screw is to allow the ball between the screw and the nut to circulate continuously and relieve the stress. The screw at the two ends of the cap is corresponding to the screw and the ball. The reflow element is installed. The reflow element is the ball screw. The internal ball is the key to the end of the screw and the nut and the reflow of the nut. At this time, the inner wall of the ball and the reflow element will continuously collide and rub to generate noise. Therefore, how to solve the problem of the beating sound of the ball screw is proposed to develop and improve the competition. Li's products naturally become the focus of the current industry. Referring to the drawings of U.S. Patent Publication No. 5,749,266, the disclosure of which is incorporated herein by reference. Ming: In today's practice, it is usually provided on the screw shaft of the screw shaft (1 〇 1) (the lubricating material (ii 2 ) is set on the n 2 >; and the groove is formed on the screw groove of the screw 1 (1...). (13), put the lubricating material (14) in the groove ^, this method is usually used as the lubrication ball (1 inside = no backlash '_) thread socket (102) and nut (103) thread Rolling between the alveolar, 1 0 4) 'Improve the product for this f after the practical use, there is still a problem of the Xuan to be developed in the first, when the ball (1 1 〇) bears the weight of the nut (Work 3) In the case of a load zone, the ball (11 〇) may cause deformation and wear after long-term transportation in the load zone, which will shorten the overall product life. Secondly, the general ball screw noise source usually comes from the ball (ii 〇 ) Continuously slamming the inner wall of the return channel (1 ο 7A), the reason for this is the j L channel (10 7A) The hole diameter is larger than the diameter of the ball (11〇), so the ball 1 1 〇) is not a neat line arrangement, but is similar to a serpentine shape, so the ball (1 1 η, 丄丄ϋ) and the return channel (1〇7)内) The inner wall of the Α) will continue to impact and rub and produce noise. In addition, the conventional technique requires the groove (Ί 丄 3) to be machined inside the thread groove (1 0 2 ), which has certain difficulty in manufacturing precision. , and 1289179: The lubricating material (丄4) is placed in the groove (1 3 ) only to retain lubrication and not to have a damping effect, and there may be cases where it is not easy to attach and fix. In order to effectively solve the aforementioned related problems, the creator of the present invention believes that there is a change based on the research and development technology and experience accumulated in the field of ball screws in the past. The meaning of the meaning, and finally developed - a new ball screw quiet structure. SUMMARY OF THE INVENTION The main purpose of the present invention is to provide a ball screw mute structure which is reduced in material and self-lubricating and damping effect; and in order to achieve the above object, the ball screw mute structure of the present is screwed. The nut, the pair of reflow elements, the return pipe and the roller are assembled to form the screw shaft, and the outer surface has a screw socket; and the nut can accommodate the screw shaft to be inserted therein, and the inner-eye corresponding a nut groove of the screw shaft; and the reflow element has k «·0| inside: for the rolling elements in the socket to pass; and a plurality of rolling elements, which are called to roll in the space limited by the socket Through the nut and the reflow element, an infinite loop is made. The nut is internally provided with a receiving groove for providing a reflow element and a top hole and a return through hole on the top surface. The movable component passes through and is connected to the return channel of the reflow element; the composite material is accommodated by at least one groove around the recirculation through hole; and the problem of the sound generated by the impact of the rolling element against the inner wall of the return hole can be solved, Can To reduce noise, vibration self-lubricating effect. " 1289179 In the present invention, in order to achieve the above objects, techniques, means and other effects, a preferred embodiment will be described in conjunction with the detailed description of the invention, and the objects, features and other advantages of the invention are believed to be A deep and specific understanding. [Embodiment] Please refer to Figures 3 to 11 for embodiments of the present invention. The embodiment of the present invention includes a screw shaft (1), a nut (3), a composite material (7), and a pair of reflow elements (8). And a plurality of rolling elements (9) assembled; the screw shaft (1) has a screw socket (2) on an outer surface thereof; and the nut (3) can accommodate the screw shaft (1) 'The inner surface has a nut socket (4) opposite to the two-screw shaft (1); and the reflow element (8) has a return passage inside (50' for the rolling element (9) in the socket to pass; a rolling element (9)' that rolls in the space defined by the socket to pass through the nut (3) and the returning tillage (8) for an infinite loop reflow; the ^' side nut (3) is The inside is provided with a receiving groove (5) which is provided with a reflow element (8), and a top surface (5a), and no backflow hole (5) on the top surface (a). 0, π, Db) for the rolling element (9) to pass through and imaginary return (8) of the return channel (8 〇 phase connection; - f gram is the relationship between the various phase elements of the invention and its overview , hereby stated together.
(D 8 1289179 為求清楚說明本發明之實施特點，以下說明此滚珠螺桿 靜音結構，在解決先前技術問題的手段之處及實用方式： 首先’請參閱第4圖，係為本發明之迴流通孔局部放 大結構示意圖。該螺帽（3)在頂靠面（51)上之迴流 通孔（5 b )周圍至少具有一溝槽（6 )可容置複合材料（7 ); 在請參閱第5圖，係本發明第1實施例之迴流通孔剖面示 ~ 意圖。由圖中所示，迴流通孔（5b)的孔徑大於滾動元件 _ ( 9 )的直徑而且形成有間隙，其滚動元件（9 )的運行並非 整齊的以直線排列，故滾動元件（9 )與迴流通孔（5 b )的 内壁會不斷撞擊、磨擦而產生噪音;其中，該複合材料（7)可 為減振材質或自潤材質，且複合材料（7 )與滾動元件（9 ) 接觸時，複合材料（7 )可產生些微變形。 因此，本發明特別是在迴流通孔（5 b)周圍製設有一溝 ( 6 )以便於谷置複合材料（7 )而填充前述形成的間隙， ( 9 ) ^ t ( 5 、b)^溝槽成形方式可為線切割成形或拉刀成形。 月乡閱第6圖，係本發明第5圖之A — A，剖面示意圖 由圖中所不，當複數個滾動元件（9 )藉由連接到迴流元件 (8) 孔（5 b )而穿過螺帽（3)到達另一端迴流元件（8) 的、i通道（8 a )作一無限循環迴流；其中，特別是在 1289179 迴流通孔（5 b)内容置一複合材料（7 )以限定滚動元件 (9 )通過的空間，該迴流通孔（5 13)的滾動元件（9 ：) 出入口區域（5 c )、（ 5 d )略大於迴流通孔（5 b )的滾 動元件（9 )經過的中間區域（5 e )。 據此，本發明的滚珠螺桿一方面除可解決滾動元件（9 ) 與迴流通孔（5 b )的内壁撞擊所產生噪音的問題，以達成 降低噪音的效果、另一方面又能解決滾動元件（9 )在迴流元 φ 件（8 )的迴流通道（8 a )在進入螺帽（3 )内部之迴 流通孔（5 b )出入口區域（5 c )、（ 5 d )的撞擊所產生噪 音的問題，確保滚動元件（9}迴流順暢，以達成自潤減振的 效果。 接著’請參閱第7圖’係本發明第2實施例之迴流通 孔剖面示意圖。由圖中所示，特別是在迴流通孔（5 b)内 的複數個溝槽（6)相對於迴流通孔(5b)中心，可為等角 春度的排列於迴流通孔（5b)周圍。 請參閱第8圖，係本發明第7圖之b — b，剖面示意a :中Jf τ同樣疋在迴流通孔（5 内容置數個複合材诗 的滾動元件⑻5物，魏流通孔（5b MR W Μ _ _(5c)、（5d)略大於迴流謂 因此本發明動疋件（9)經過的中間區域（5e)。 ’…的滾珠螺桿同樣是可解決滾動元件（9) 1289179 與迴流ϋ孔（5b)的内壁撞擊所產生n喿音的問題，以及解 、袞動70件（9 )在迴流元件（8 )的迴流通道（8 a ) 在進入螺帽（3)内部之迴流通孔（5b)出入口區域 (5 c)、（ 5 d)的撞擊所產生噪音的問題。 11«，3 ^ a 5只施例之迴流通孔剖面示意圖。由圖中所示，特別 5 b ) β) 5 .b)中〜’可為非等角度的排列於迴流通孔（5 b )周圍，該 溝匕(6 )加工位置可依據迴流通孔（5 b )的内壁厚度調 藉此同樣犯發揮本發明各項優點，故應同屬本發明保護範 綜上所述，本發明之滾珠螺桿靜音結構,包含螺桿軸、 螺栈、複合材料、成對迴流元件、及複數個滾動元件組裝而 成’其主要是在螺帽内部設有提供迴流元件嵌設的容置槽 |以及頂靠面，並且在頂靠面上設有迴流通孔，供滾動元件 穿過螺帽並連接到迴流元件的迴流通道，藉由前述之迴流通 孔周圍至少具有-鱗可容置複合材料；除了可轉決滾動元 件與迴流孔的内壁揸擊所產生噪音的問題，又能達成降低噪 音、自潤減振的效果。 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 1289179 别亚未f見於諸刊物，亦料被公開使用，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， 爰依祕出發明專狀”，祈請惠^審查並早日賜准專 利，實感德便。 【圖式簡單說明】 善第1圖係習用US 5, 749, 266號圖式。 第2圖係習用US 5,749,266號圖式。 第3圖係本發明之整體外觀立體分解圖。 •第4圖係本發明之迴流通孔局部放大結構示意圖。 第5圖#本發明第1實施例之迴流通孔剖面示意圖： 第6圖係本發明第5圖之A — A，剖面示意圖。 第7圖孫本發明® 2實施例之迴流通孔剖面示意圖。 •第8圖係本發明第7圖之B — B，剖面示意圖。 第9圖孫本發明第3實施例之迴流通孔剖面示意圖。 第10圖係本發明第4實施例之迴流通孔剖面示意圖。 第1 1圖係本發明第5實施例之迴流通孔剖面示意圖。 12 1289179(D 8 1289179 In order to clearly illustrate the implementation features of the present invention, the following describes the silent structure of the ball screw, the means and practical means for solving the prior art problems: First, please refer to FIG. 4, which is the return flow of the present invention. A schematic view of a partially enlarged structure of the hole. The nut (3) has at least one groove (6) around the return through hole (5b) on the abutment surface (51) for accommodating the composite material (7); 5 is a cross-sectional view of a return through hole according to a first embodiment of the present invention. As shown in the figure, the diameter of the return through hole (5b) is larger than the diameter of the rolling element _ (9) and a gap is formed, which is rolled. The operation of the component (9) is not neatly arranged in a straight line, so the inner wall of the rolling element (9) and the return through hole (5b) will continuously collide and rub to generate noise; wherein the composite material (7) can be damped When the composite material (7) is in contact with the rolling element (9), the composite material (7) may be slightly deformed. Therefore, the present invention particularly has a groove around the return through hole (5b). (6) to fill the composite (7) The gap formed by the above, (9) ^ t (5, b) ^ groove forming method may be wire cutting forming or broach forming. Yuexiang read Fig. 6, which is a diagram of the A-A of the fifth drawing of the present invention. As shown in the figure, when a plurality of rolling elements (9) pass through the nut (3b) connected to the reflow element (8), the i-channel (8) passes through the nut (3) to the other end reflow element (8). a) performing an infinite loop reflow; wherein, in particular, the 1289179 backflow hole (5b) is provided with a composite material (7) to define a space through which the rolling element (9) passes, the return through hole (5 13) The rolling element (9:) entrance and exit area (5c), (5d) is slightly larger than the intermediate area (5e) through which the rolling element (9) of the return through hole (5b) passes. Accordingly, the ball screw 1 of the present invention In addition to solving the problem of noise generated by the impact of the rolling element (9) and the inner wall of the return through hole (5b), the noise reduction effect can be achieved, and on the other hand, the rolling element (9) can be solved in the return element ( 8) The return channel (8a) enters the inlet and outlet area (5c) (5d) of the return through hole (5b) inside the nut (3) The problem of the noise generated by the impact ensures that the rolling element (9} flows smoothly to achieve the effect of self-lubricating vibration reduction. Next, please refer to Fig. 7 for a cross-sectional view of the recirculation through hole according to the second embodiment of the present invention. As shown in the figure, in particular, a plurality of grooves (6) in the return through hole (5b) are arranged at an equiangular spring around the return through hole (5b) with respect to the center of the return through hole (5b). Referring to Fig. 8, which is a b-b of Fig. 7 of the present invention, a cross-sectional view a: in which Jf τ is also entangled in a recirculation through hole (5 content of a plurality of rolling elements (8) of a composite poem, a Wei flow hole ( 5b MR W Μ _ _ (5c), (5d) is slightly larger than the intermediate portion (5e) through which the moving element (9) of the present invention passes. The ball screw of '... is also able to solve the problem of the n-sound generated by the impact of the rolling element (9) 1289179 with the inner wall of the return boring hole (5b), and the solution of 70 pieces (9) in the reflow element (8) The problem of noise generated by the collision of the return passage (8 a ) into the inlet and outlet areas (5 c) and ( 5 d) of the return through hole (5b) inside the nut (3). 11«, 3 ^ a Schematic diagram of the return through-hole of the five examples. As shown in the figure, the special 5 b ) β) 5 .b) 〜 ′ can be arranged at a non-equal angle around the return through hole ( 5 b ), and the groove (6 ) can be processed according to the return through hole ( 5 b) The thickness of the inner wall is adjusted to exert the advantages of the present invention, and therefore should be the same as the protection of the present invention. The ball screw mute structure of the present invention comprises a screw shaft, a screw stack, a composite material, and a The reflow element and the plurality of rolling elements are assembled. The main part is a receiving groove for providing a reflow element inside the nut and a top surface, and a return through hole is provided on the top surface. The rolling element passes through the nut and is connected to the return passage of the reflow element, and at least the scale-receiving composite material is surrounded by the aforementioned return through-hole; except for the noise generated by the slamming of the inner wall of the rolling element and the return hole The problem can also achieve the effect of reducing noise, self-lubricating and damping. Therefore, the "industry availability" of the present invention should be unquestionable, except that the characteristic techniques revealed in the examples of the present invention are also disclosed in the publications of the publication 1289179. Not only does it have the fact that the effect is improved as described above, but it also has an additional effect that cannot be neglected. Therefore, the "novelty" and "progressiveness" of the present invention have been in compliance with the patent regulations, and the secret of the invention of the invention is prayed. Please Hui ^ review and grant the patent as soon as possible, the real sense of virtue. [Simple diagram of the diagram] Good 1st diagram is the use of US 5, 749, 266. Figure 2 is the use of US 5,749,266. Figure 3 3 is an exploded perspective view of a recirculation through hole according to a first embodiment of the present invention. FIG. 6 is a cross-sectional view of a recirculation through hole according to a first embodiment of the present invention. 5A-A, a schematic cross-sectional view. Fig. 7 is a schematic cross-sectional view of a recirculation through hole of the embodiment of the present invention. Fig. 8 is a cross-sectional view taken along line B-B of Fig. 7 of the present invention. Returning through hole of the third embodiment of the invention Schematic side. FIG. 10 of the embodiment-based return flow aperture cross-sectional schematic view of a fourth embodiment of the present invention. FIG line 11 back to the first hole embodiment of the flow cross-sectional schematic view of a fifth embodiment of the present invention. 121289179
【主要元件符號說明】 《習用》 螺桿轴（1 0 1 ) 螺紋牙槽（1 0 2 ) 螺帽（1 0 3 ) 螺紋牙槽（1 0 4 ) 迴流通道（10 7 A) 滾珠（110) 潤滑材料（1 1 2 ) 凹槽（1 3) 潤滑材料（1 4) 《本發明》 螺桿軸（1 ) 螺桿牙槽（2) 螺帽（3) 螺帽牙槽（4) 容置槽（5) 頂靠面（5 a ) 迴流通孔（5 b) 出入口區域（5c)、（5d) 中間區域（5 e) 溝槽（β ) 複合材料（7) 迴流元件（8) 迴流通道（8 a ) 滾動元件（9) 13 ⑧[Explanation of main component symbols] "Use" Screw shaft (1 0 1 ) Threaded socket (1 0 2 ) Nut (1 0 3 ) Threaded socket (1 0 4 ) Return channel (10 7 A) Ball (110) Lubricating material (1 1 2 ) Groove (1 3) Lubricating material (1 4) <<The present invention》 Screw shaft (1) Screw socket (2) Nut (3) Nut socket (4) accommodating groove ( 5) Abutment surface (5 a ) Back flow hole (5 b) Entrance and exit area (5c), (5d) Intermediate area (5 e) Groove (β) Composite (7) Reflow element (8) Return path (8 a) Rolling elements (9) 13 8