201226741 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，尤指一種外循環 式滚珠螺桿。 【先前技術】 請參閱第一圖及第二圖所示，係為目前業界所使 Φ 用的外循環式滾珠螺桿，係包含：一長軸1，其外緣 面設有螺旋狀之滾動溝i i ; 一螺帽2，其設有供該 長軸1穿設之穿孔2 1，該穿孔2 i内緣面係設有相 對該滾動溝1丄之滾動槽2 i i，該滾動溝i i與滚 動槽2 1 1係構成一負荷路徑（未顯示），該負荷路徑 係容置複數個滾動體（未顯示），該滾動體係作為長軸 1與螺帽2之間的傳動介質，且該螺帽2外緣面係設 馨 有複數個貫穿該螺帽2壁面且與該穿孔2丄連通之安 裝孔2 2 ;四個循環元件4，其外型概呈l字型，該 循環元件4具有一迴流道4 3，而該循環元件4係插 δ又於该女裝孔2 2，使該迴流道4 3之一端與該負荷 路徑銜接，而該迴流道4 3另一端係與另一循環元件 4之迴流道4 3銜接，使兩該循環元件4之迴流道4 3構成一循環軌道（未顯示）’該循環軌道係提供該滾 動體循環迴流用’使螺帽2可於長軸1上往復運行， 201226741 另’該螺帽2外更設有一固定蓋3，該固定蓋3係具 有一固定槽（未顯示），該固定槽係定位該循環元件4 於螺帽2上’然，此習知技術經實用後有以下問題： 請再參閱第二圖所示’該循環元件4係由第一構 件4 1與第二構件4 2所組成，而其兩者組合方式係 由凹凸配合或膠黏方式來組合成該循環元件4，但問 題在於：該第一構件4 1與第二構件4 2係以該安裝 孔2 2之徑方向g為組合或分離之方向（如第二圖所 示）使彳于製造滚珠螺桿之裂配人員於裝配滾動體至迴 流逞4 3時，就必須先將滚動體置入循環元件4之迴 流道4 3後，再將循環元件4插設於安裝孔2 2，但 由上述可得知該迴流道4 3係為一貫通之路徑，故將 滾動體置入迴流道4 3前必須先將迴流道4 3之一端 勺出封住，這樣才能防止置入的滾動體掉出迴流道 卜“、;'而，要將循環元件4置入安裝孔2 2時就 必須將封閉的出π打開，此時滚動體就很容易又掉出 迴流道4 3外’或者另一種方式，係使用較黏稠的潤 滑脂將滾動體――沾黏於迴流道4 3 +，但這樣--沾黏的迷度其實相當緩慢，尤其對於較小尺寸的滚動 ㈣說，於沾黏時更是困難，因為滾動體通常都會無 法一次就成功沾黏於迴流道，因為協助沾黏的製且上 亦有__脂’是以’製具又會將原本沾黏於迴流 201226741 道4 3的滾動體又帶離迴流道。综前述，這兩種裝配 步驟都相當繁瑣’也使得裝配時間大幅增加’相對也 增加滾珠螺桿的生產成本，及降低生產效率，故此習 知技術仍有精進改良之必要。 【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，開發一種容易裝配滚 動體於迴流道之循環元件。 為達上述之目的，本發明係為一種外循環式滾珠 螺桿，係包含： 複數個滾動體； 一長軸，其外型係為一長條狀且截面為圓形，該 • 長軸之外緣面設有螺旋狀之滾動溝； 一螺帽，係設有一供該長軸套設之穿孔，該穿孔 之内緣面設有相對該滾動溝之滾動槽，該滾動溝與滾 動槽係構成-負荷路徑，且該螺帽外緣面上設有複數 ㈤呈傾斜設置並與該穿孔連通之安裝孔，且該安裝孔 係接續該滾動槽； 兩循環元件，該循環元件外型概呈乙字型，兩該 循環元件之一端係相互對接，另-端係各別插設㈣ 201226741 安裝孔；且該循環元件係包含—上循環體及一下循環 體，該上循環體及下循環體分別設有一半迴流道，該 上循環體及下循環體組合成該循環元件時，兩1該半= 流道係構成-迴流道’且兩該循環元件之迴流道係= 互銜接’使兩迴流道構成-迴流路經，該迴流路和之 兩端係與該負荷路徑銜接，以構成—完整的循環路 徑’該循環路徑中係容置該滾動體；且該上循環體及 下循環體係以該安裝孔之軸方向為組合或分離之方 向。 為達上述之目的，本發明係為一種外循環式滚珠 螺捍，係包含： 複數個滾動體； 一長軸，其外型係為-長條狀且戴面為圓形，該 長軸之外緣面設有螺旋狀之滾動溝； -螺帽m供該長軸套設之穿孔，該穿孔 之内緣面設有相對該滾動溝之滾動槽，該滾動溝值滾 動槽係構成-負荷路徑，且該螺帽外緣面上設有複數 傾斜設置並與該穿孔連通之安農孔，且該安裝孔 係接續該滾動槽； 兩循環元件’該循環元件外型概呈L字型，兩該 =:之：系相互對接，定義另一端為插設段係 t»又於》亥女裝孔；該循環元件係包含—上循環體 201226741 及一下循環體，該上循環體及下循環體分別設有一半 弧形的半迴流道，該下循環體之插設段係設有一環狀 的填充部，、該填充部係具有一環狀的銜接迴流道，該 銜接迴流道係與該下循環體之半迴流道銜接；該上循 環體及下循環體組合成該循環元件時，兩該半迴流道 及該銜接迴流道係構成一迴流道，且兩該循環元件之 迴流道係相互銜接，使兩迴流道構成一迴流路徑，該 迴流路徑之兩端係與該負荷路徑銜接，以構成一完整 的循環路徑，該循環路徑中係容置該滾動體；且該上 循環體及下循環體係以該安裝孔之軸方向為組合或分 離之方向。 為了更進一步暸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】 請參閱第三圖至第十一圖所示，係為本發明第一 較佳實施例，本發明係為一種外循環式滾珠螺桿，係 包含= 一長軸5，其外型係為一長條狀且截面為圓形’ 201226741 該長軸5之外緣面設有螺旋狀之滾動溝5 1 ; 一螺帽6，係設有一供該長軸5套設之穿孔6201226741 VI. Description of the Invention: [Technical Field] The present invention is a linear transmission element, and more particularly an external circulation type ball screw. [Prior Art] Please refer to the first and second figures. It is an externally-circulating ball screw used in the industry. It consists of a long shaft 1 with a spiral rolling groove on its outer edge. Ii; a nut 2, which is provided with a through hole 2 for the long shaft 1 to pass through, and the inner edge surface of the through hole 2 i is provided with a rolling groove 2 ii opposite to the rolling groove 1 , the rolling groove ii and the rolling The moving groove 2 1 1 constitutes a load path (not shown), and the load path accommodates a plurality of rolling bodies (not shown) as a transmission medium between the long shaft 1 and the nut 2, and the screw The outer edge surface of the cap 2 is provided with a plurality of mounting holes 2 2 extending through the wall surface of the nut 2 and communicating with the through hole 2; four circulating elements 4 having an outer shape of a l-shape, the circulating element 4 having a return passage 43, and the circulation element 4 is inserted into the female hole 22, so that one end of the return passage 43 is engaged with the load path, and the other end of the return passage 43 is connected to another cycle. The return passage 4 3 of the component 4 is engaged such that the return passages 4 3 of the two circulating elements 4 constitute a cyclic track (not shown) The rolling element is circulated and recirculated for making the nut 2 reciprocally run on the long axis 1, and the second cover of the nut 2 is further provided with a fixing cover 3 having a fixing groove (not shown), which is fixed. The groove system positions the circulation element 4 on the nut 2, and the prior art has the following problems after being practical: Please refer to the second figure again, the circulation element 4 is composed of the first member 4 1 and the second member. 4 2, and the combination of the two is combined into the circulation element 4 by a concave-convex fit or an adhesive manner, but the problem is that the first member 4 1 and the second member 42 are attached to the mounting hole 2 2 The direction g of the radial direction is the direction of combination or separation (as shown in the second figure). When the splitting person who manufactures the ball screw is assembled to the rolling element to the reflow port 4, the rolling element must first be placed in the circulating element. After the return path 4 of 4, the circulating element 4 is inserted into the mounting hole 22, but it can be seen from the above that the return path 43 is a through path, so that the rolling element is placed before the return path 43. The back end of the return channel 43 must be spooned out to prevent the placed rolling elements from falling out. The flow path is ",;", and when the circulation element 4 is placed in the mounting hole 2 2, the closed π must be opened, and the rolling element can easily fall out of the return path 4 3 or another The way is to use a thicker grease to stick the rolling element - sticking to the return channel 4 3 +, but this - the degree of sticking is actually quite slow, especially for the smaller size of the rolling (four) said, sticking It is even more difficult, because the rolling elements usually can't be successfully adhered to the return channel at one time, because the system that assists the adhesion is also __脂' is the tool and will stick to the original 201226741. The rolling elements of 3 are further separated from the return flow. In view of the above, these two assembly steps are quite cumbersome 'also greatly increase the assembly time', which also increases the production cost of the ball screw and reduces the production efficiency. Therefore, the conventional technology is still refined. The need for improvement. SUMMARY OF THE INVENTION Based on the problems of the above-described conventional techniques, the inventors of the present invention have been researched and improved, and the inventions for which the following inventions can be achieved are finally born. That is, the primary object of the present invention is to develop a circulating element which is easy to assemble a rolling body on a return path. For the above purposes, the present invention is an outer-circulating ball screw comprising: a plurality of rolling bodies; a long shaft having a long shape and a circular cross section, the long axis The rim is provided with a spiral rolling groove; a nut is provided with a through hole for the long shaft, and the inner edge surface of the hole is provided with a rolling groove opposite to the rolling groove, and the rolling groove and the rolling groove are formed a load path, and the outer surface of the nut is provided with a plurality of (5) mounting holes that are obliquely disposed and communicate with the through holes, and the mounting holes are connected to the rolling groove; and the two circulating elements have a shape of the circulating element One type, one end of the two circulating elements are butted together, and the other ends are respectively inserted (4) 201226741 mounting holes; and the circulating element comprises an upper loop body and a lower loop body, and the upper loop body and the lower loop body are respectively set There are half of the return flow, when the upper circulation body and the lower circulation body are combined into the circulation element, two 1 = the flow channel system constitutes - the return flow path 'and the return flow system of the two cycle elements = mutual connection' makes the two return flow paths Composition-return path, the return path and The two ends are connected to the load path to form a complete circulation path, wherein the rolling body is accommodated in the circulation path; and the upper circulation body and the lower circulation system are combined or separated by the axial direction of the installation hole. direction. In order to achieve the above object, the present invention is an outer circulation type ball screw, comprising: a plurality of rolling bodies; a long axis, the outer shape is - elongated and the wearing surface is circular, the long axis The outer edge surface is provided with a spiral rolling groove; the nut m is provided for the perforation of the long shaft sleeve, and the inner edge surface of the perforation is provided with a rolling groove opposite to the rolling groove, and the rolling groove value rolling groove system constitutes a load a path, and the outer edge surface of the nut is provided with a plurality of inclined angles and communicating with the perforation, and the mounting hole is connected to the rolling groove; the two-cycle element's outer shape is L-shaped. The two are:: they are mutually connected, and the other end is defined as the interpolating section t»also in the "Hai women's hole"; the circulating component is - the upper loop body 201226741 and the lower loop body, the upper loop body and the lower loop The body is respectively provided with a semi-circular semi-return channel, and the insertion portion of the lower circulation body is provided with an annular filling portion, and the filling portion has an annular connecting return channel, and the connecting return flow system and the The half-return channel of the lower loop body is connected; the upper loop body and the lower loop body combination When the circulating component is formed, the two return flow paths and the connecting return flow path form a return flow path, and the return flow paths of the two circulating elements are connected to each other, so that the two return flow paths form a return path, and both ends of the return flow path are And engaging the load path to form a complete circulation path, wherein the rolling body is received by the rolling path; and the upper and lower circulation systems are combined or separated in the direction of the axis of the mounting hole. 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 the third to eleventh drawings, which is a first preferred embodiment of the present invention. The present invention is an external circulation type ball screw, which comprises = a long shaft 5, and its appearance It is a long strip and has a circular cross section. 201226741 The outer peripheral surface of the long shaft 5 is provided with a spiral rolling groove 5 1 ; a nut 6 is provided with a perforation 6 for the long shaft 5
1，該穿孔6 1之内緣面設有相對該滾動溝5 1之滚 動槽6 1 1 ’該滾動溝5 1與滾動槽6 1 1係構成一 負荷路控1 0 0 ’且該螺帽6外緣面上設有複數個呈 傾斜設置並與該穿孔61連通之安裝孔62(在此說 明何謂傾斜設置的安裝孔6 2，請參閱第十一圖所 示，該安裝孔6 2具有一軸線6 2 1係與該螺帽6之 承靠面6 3具有一夾角D，該夾角〇之角度範圍係大 於0度小於90度，故稱該安裝孔6 2為傾斜設置；另 外，該安裝孔6 2之軸線6 2 1的延伸方向定亦為軸 方向G)，該安裝孔6 2係接續該滾動槽6 2 ^ ;且該 安裝孔6 2週圍係設有承靠面6 3 ; 至y兩個循環元件8 (本實施例為四個循環元十 8，係為兩兩一組故具有四個循環元件8，而為了 ^ 便說明係以兩循環元件8來說明)，兩該循環元件外遂 概呈[字$，至少由—銜接段8A及插設段δ 成’兩該循環元件8銜接段8A係相互對接，而該插 設段8 B係各職設㈣縣孔62 (猶環元件之安 裝態樣，請參閱第四圖所示);且該循環元件8係包含 一上循環體8 2及—下循環體δ 3，該上猶環體82 及下猶％、體8 3分別設有—半迴流道8 2 1、 201226741 1，該上循環體8 2及下循環體8 3組合成該循環元 件8時，兩該半迴流道8 2 i、8 3工係構成—迴流 道8 1，（未顯示；本發明之迴流路徑一定必須要兩循 環元件的迴流道才能構成，且該循環元件係以塑膠射 出成形），該迴流路徑之兩端係與該負荷路徑i 〇 〇銜 接，且該迴流路徑之兩端係與該負荷路徑^ 〇 〇為相 切没置（更進一步界定，係為該迴流道8 ^之導引段 8 1 C與負荷路徑1 〇 〇為相切設置），以構成一完整 的循環路徑（未顯示），該循環路徑中係容置複數個滾 動體9 ϋ袞動體9係為長軸5與螺帽6之間的傳動 介質；另該迴流路徑之兩端於下循環體8 3上各設有 一導引片8 3 2 ,該導引片8 3 2係用以引導滾動體 9進入該迴流路徑，以使滾動體9的循環更為順暢； 一固定蓋7，係蓋設於該承靠面6 3上，並具有 固疋槽7 1，δ亥固定槽7 1係容置並固定該循環元 件8。 以上係說明各元件之間的組態，以下詳細說明各 元件之間的手段及功效： 請參閱第五圖及第六圖所示，該上循環體8 2及 下循環體8 3係以該安裝孔6 2之軸方向G為組合或 分離之方向，如此的設計可方便將滾動體g置入迴流 201226741 道8 1，因為於滾珠螺桿組裝時，只要先將兩個下循 環體8 3設置於安裝孔中（如第六圖所示，前提是滾 動體9已填滿整個負荷路徑！ 〇 〇，壤樣滚動體9才 “ 不會一直掉進負荷路徑1 0 〇中），再將滾動體9 一一 - 放置於半迴流道8 3 至填滿兩個半迴流道8 3工 後’即可將上循環體8 2蓋設於下循環體8 3而組成 該猶環元件8 ’如此-來’即完成滾珠螺桿的組裝， _ &本發明之循環元件8的設計於裝配效率上大幅優於 習知技術之循環元件，且不需使用任何製具及辅助品 (潤滑脂等）相對也省下該些成本。 再著，請參閱第七圖及第十圖所示，為了使該上 循環體8 2及下循環體8 3兩者結合時有較佳的固定 效果’於該上循環體8 2及下循環體8 3分別設有複 瞻數個凹凸配合之定位部8 2 2、8 3 3，該些定位部 8 2 2、8 3 3可預防滾動體9進人迴流道8 i時， 因速度極快故會與迴流道8丄壁面產生碰撞（尤其是 轉向段8 1 B，如第十圖所標示的撞擊處B，因為滾 動體9 (滾動體行進方向如γ所示）進入導引段8工 C %速度極快’❼導引段8 1 C接著銜接就是轉向段 8 1 B，而該撞擊處6就是具有引導滾動體9轉向之 功此，使滾動體9順利轉向至迴流道8工之直線段^ 201226741 1 A)’如此可避免該上循環體8 2及下循環體8 3之 間產生分離，且亦能增加循環元件8的整體強度。 接著，請參閱第十圖所示，為了更加強循環元件 8的壽命及強度，故該上循環體8 2及下循環體8 3 各具有兩相互接觸的接合面8 2 3、8 3 5，而本發 明特別將該接合面8 2 3、8 3 5設計與該上循環體 8 2及下循環體8 3組合或分離之方向約為平行設置 之關係（平行的設置為最佳設計，亦可為垂直設置）， 如第十圖所示’兩接合面8 2 3、8 3 5相接觸後所 產生的接合線X並不位於撞擊處B上，且藉由定位部 8 2 2、8 3 3的設計，可預防上循環體8 2向◦方 向與下循環體8 3產生分離，如此，即可避免接合面 8 2 3、8 3 5位於轉向段8 1 b的撞擊處b，使撞 擊處B為一完整的曲面，故具有較高的強度相對也提 升其耐用性。 最後，請參閲第十一圖所示，該螺帽6之安裝孔 6 2週圍係設有承靠面6 3，該下循環體8 3係設有 —抵靠面8 3 4，該抵靠面8 3 4係貼合於該承靠面 6 3，如此設計可抵消滾動體9於進入該迴流道8工 之導引段8 1 C時所產生的撞擊力，以限制該循環元 201226741 件8之銜接段8A之旋轉的自由度R，且限制該循環 元件8之插設段8 B亦不會產生τ方向之位移。 請參閱第十二圖、第十三A圖、第十三B圖、第 十四圖及第十五圖所示，係為本發明第二較佳實施 例，本實施例與第一較佳實施例不同在於：該循環元 件8外型概呈L字型，兩該循環元件8之一端係相互 對接，另一端係各別插設於螺帽6所設之安裝孔6 2 ’係定義此端為插設段8 B ;該循環元件8包含一 上循環體8 2及一下循環體8 3，該上循環體8 2及 下^盾環體8 3分別設有一半弧形的半迴流道8 2 1、 8 3 1，該下循環體8 3之插設段8 b係設有一環狀 的填充部8 3 5，該填充部8 3 5係具有一環狀的銜 接迴流道8 3 5 1，該銜接迴流道8 3 5 1係與該下 循環體8 3之半迴流道8 3 1銜接；該上循環體8 2 及下循環體8 3組合成該循環元件8時，兩該半迴流 道8 2 1、8 3 1及該銜接迴流道8 3 5 i係構成一 迴流道8 1 ;該填充部8 3 5係設有一定位部8 3 5 2，而該上循環體82相對該下循環體8 3之定位部 8 3 5 2之位置係設有一定位部8 2 2，兩該定位部 8 2 2、8 3 5 2係相互以凹凸配合方式嵌設定位； d亥填充σ卩8 3 5的外緣戴面輪廟係與螺帽6之安誓孔 6 2的内緣截面輪廓相同’該填充部8 3 5插設於該 201226741 安裝孔6 2後係與該安裝孔6 2之内緣面6 2 2接 觸’使下循環體8 3定位而不會產生晃動，這對於穿 配者來說是相當方便的，因為可以同時使用雙手來‘ 取滾動體填充（如為第一較佳實施例的設計，裝配者 就須以一隻手扶著下循環體，另外一隻手拿滾動體來 填充，故相當不方便）’可避免滾動體掉落或下循環體 歪斜的問題產生，相對亦能大幅縮短裝配時間。 綜所上述，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，更再 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，爰依法提出發二 專利之申請，祈請惠予審查並早曰賜准專利，實感德 便。 、仏 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。 13 201226741 圖式簡單說明】 圖 第一圖係為習知技術之外循環式滾珠 螺桿立1. The inner edge surface of the perforation 61 is provided with a rolling groove 6 1 1 ' relative to the rolling groove 5 1 . The rolling groove 5 1 and the rolling groove 6 1 1 form a load path 1 0 0 ' and the screw The outer edge surface of the cap 6 is provided with a plurality of mounting holes 62 which are disposed obliquely and communicate with the through holes 61 (herein, the mounting holes 6 2 which are inclinedly arranged, please refer to FIG. 11 , the mounting holes 6 2 The bearing hole 62 has an angle D and the bearing surface 63 of the nut 6 has an angle D, and the angle of the angle 大于 is greater than 0 degrees and less than 90 degrees, so the mounting hole 62 is said to be inclined; The axis of the mounting hole 6 2 extends in the axial direction G), the mounting hole 62 2 is connected to the rolling groove 6 2 ^; and the bearing hole 6 2 is provided with a bearing surface 6 3 To y two loop elements 8 (in this embodiment, four loop elements are eight, which are two or two sets, so that there are four loop elements 8, and for the sake of explanation, two loop elements 8 are used for explanation), The outer loop of the loop element is generally [word $, at least by the engaging section 8A and the inserting section δ", and the looping section 8 is connected to each other by the connecting section 8A, and the plugging section 8 B is used for each position (4) County hole 62 (see Figure 4 for the mounting aspect of the elemental ring); and the circulating element 8 includes an upper circulating body 8 2 and a lower circulating body δ 3 , the upper quaternary body 82 and the lower In the case of the semi-return channel 8 2 1 , 201226741 1, the upper circulation body 8 2 and the lower circulation body 8 3 are combined into the circulation element 8, the two semi-return channels 8 2 i, 8 3 working system structure - return path 8.1, (not shown; the return path of the present invention must be constructed by the return path of the two circulating elements, and the circulating element is formed by plastic injection molding), the two ends of the return path are The load path i 〇〇 is connected, and the two ends of the return path are tangent to the load path ( (further defined, the guide section 8 1 C and the load path of the return path 8 ^ 1 〇〇 is tangent setting) to form a complete circulation path (not shown), which accommodates a plurality of rolling bodies 9 in the circulation path. The swaying body 9 is between the long axis 5 and the nut 6. And a guiding piece 8 3 2 is disposed on each of the two ends of the returning path on the lower circulating body 83. The guiding piece 8 3 2 is used to guide the rolling elements 9 into the return path to make the rolling body 9 cycle more smoothly; a fixing cover 7 is provided on the bearing surface 63 and has a solid groove 7 1, δ The fixing groove 7 1 accommodates and fixes the circulation element 8. The above describes the configuration between the components, and the following describes in detail the means and functions between the components: Please refer to the fifth and sixth figures, the upper loop body 8 2 and the lower loop body 8 3 The axial direction G of the mounting hole 6 2 is the direction of combination or separation. This design makes it easy to place the rolling element g into the reflow 201226741 lane 8 1 , because when assembling the ball screw, the two lower circulation bodies 8 3 are first set. In the mounting hole (as shown in the sixth figure, the premise is that the rolling body 9 has filled the entire load path! 〇〇, the soil-like rolling body 9 "does not fall into the load path 1 0 )", and then The rolling body 9 - one is placed on the semi-return channel 8 3 to fill the two half-return channels 8 3 after the work - the upper circulation body 8 2 can be placed on the lower circulation body 8 3 to form the juxtacyclic element 8 ' In this way, the assembly of the ball screw is completed, and the design of the circulation element 8 of the present invention is superior in assembly efficiency to the circulating element of the prior art, and does not require the use of any tools and accessories (grease, etc.) Relatively save these costs. Again, please refer to the seventh and tenth In order to make the upper loop body 8 2 and the lower loop body 8 3 have a better fixing effect, the upper loop body 8 2 and the lower loop body 8 3 are respectively provided with a plurality of positions of the concave and convex joints. The parts 8 2 2, 8 3 3, the positioning parts 8 2 2, 8 3 3 can prevent the rolling elements 9 from entering the return path 8 i, because the speed is extremely fast, it will collide with the return wall 8 丄 wall surface (especially The turning section 8 1 B, as shown in the tenth figure, is the impact point B, because the rolling body 9 (the traveling direction of the rolling elements is as indicated by γ) enters the guiding section 8 and the speed is extremely fast '❼ guiding section 8 1 C Then, the connecting portion is the turning portion 8 1 B, and the impact portion 6 has the function of guiding the rolling body 9 to turn, so that the rolling body 9 is smoothly turned to the straight line segment of the returning flow path ^ 201226741 1 A) 'This can avoid the upper portion Separation occurs between the circulation body 8 2 and the lower circulation body 83, and the overall strength of the circulation element 8 can also be increased. Next, as shown in the tenth figure, in order to further enhance the life and strength of the circulation element 8, the upper portion The circulation body 8 2 and the lower circulation body 8 3 each have two joint faces 8 2 3 and 8 3 5 which are in contact with each other, and the present invention particularly The direction in which the surface 8 2 3, 8 3 5 is designed to be combined or separated from the upper loop body 8 2 and the lower loop body 8 3 is approximately parallel (the parallel arrangement is an optimal design or a vertical arrangement), such as The joint line X generated after the contact of the two joint faces 8 2 3 and 8 3 5 is not located on the impact portion B, and can be prevented by the design of the positioning portions 8 2 2, 8 3 3 The upper circulation body 8 2 is separated from the lower circulation body 83 in the direction of the weir, so that the joint surface 8 2 3, 8 3 5 is prevented from being located at the impact portion b of the turning portion 8 1 b, so that the impact portion B is a complete The curved surface has a higher strength and also improves its durability. Finally, referring to the eleventh figure, the bearing hole 6 2 of the nut 6 is provided with a bearing surface 63, and the lower circulating body 83 is provided with an abutting surface 836. The bearing surface 8 3 4 is attached to the bearing surface 63, so as to offset the impact force generated by the rolling body 9 when entering the guiding section 8 1 C of the returning channel 8 to limit the circulating element 201226741 The degree of freedom R of the rotation of the engaging section 8A of the piece 8 and the restriction of the insertion section 8 B of the circulating element 8 do not cause a displacement in the τ direction. Please refer to FIG. 12, FIG. 13A, FIG. 13B, FIG. 14 and FIG. 15 for the second preferred embodiment of the present invention. The difference in the embodiment is that the outer shape of the circulating element 8 is generally L-shaped, and one end of the two circulating elements 8 are butted together, and the other end is respectively inserted into the mounting hole provided by the nut 6 6 2 ' The end is an insertion section 8 B; the circulation element 8 includes an upper circulation body 8 2 and a lower circulation body 8 3 , and the upper circulation body 8 2 and the lower shield ring body 8 3 are respectively provided with a semi-arc-shaped half-return path. 8 2 1 , 8 3 1 , the insertion section 8 b of the lower circulation body 8 3 is provided with an annular filling portion 835, and the filling portion 835 has an annular connecting return passage 8 3 5 1. The connecting return runner 8 3 5 1 is engaged with the half return runner 8 3 1 of the lower loop body 83; when the upper loop body 8 2 and the lower loop body 8 3 are combined into the loop member 8, the two halves The return channel 8 2 1 , 8 3 1 and the connecting return channel 8 3 5 i form a return channel 8 1 ; the filling portion 835 is provided with a positioning portion 8 3 5 2, and the upper circulating body 82 is opposite to the Positioning portion 8 3 of the lower circulation body 8 3 The position of 2 is provided with a positioning portion 8 2 2, and the two positioning portions 8 2 2, 8 3 5 2 are mutually embedded in a concave-convex manner; d Hai fills the outer edge of σ卩8 3 5 The cross-sectional profile of the inner edge of the swearing hole 6 2 of the nut 6 is the same. The filling portion 835 is inserted into the mounting hole 6 2 of the 201226741 and is in contact with the inner edge surface 62 2 of the mounting hole 6 2 . The lower loop body 83 is positioned without sloshing, which is quite convenient for the wearer because the hands can be used simultaneously to take the rolling body fill (as in the design of the first preferred embodiment, the assembler It is necessary to hold the lower loop body with one hand and the other with a rolling body to fill it, so it is quite inconvenient. 'It can avoid the problem that the rolling element falls or the lower loop body is skewed, and the assembly time can be greatly shortened. . In view of the above, the industrial applicability of the present invention should be unquestionable. In addition, the feature techniques disclosed in the examples of the present invention have not been seen in publications before, and have not been publicly used. Not only does it have the fact that the effect is improved as described above, but there is 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 application for the issuance of the second patent is filed according to law. Pray for review and early grant of patents. 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. 13 201226741 Schematic description of the diagram] The first diagram is the circulation of the ball outside the conventional technology.
c為習知技術之外循環式滾珠螺桿的螺帽 /、循被7L件之組立圖。 第三圖係為本發明第一實施例外循環式滾珠螺桿 局部剖視圖。 第四圖係為本發明第一實施例外循環式滾珠螺桿 局部分解圖。 第五圖係為本發明第一實施例外循環式滾珠螺桿 的螺帽與一循環元件之分解圖。 第六圖係為本發明第一實施例外循環式滾珠螺桿 的螺帽、循環元件（下循環件）及滾動體之組裝示音 圖 " 第七圖係為本發明第—實關循環元件之上循環 件與下循環件的分解圖。 第八A圖係為本發明第一實施例上循環件立體 圖。 第八B圖係為本發明第一實施例下循環件立體 圖。 第九圖係為本發明第一實施例循環元件之上循環 件與下循環件的組立圖。 14 201226741 第十圖係為本發明第一實施例循環元件之前視 圖。 第十-圖係為本發明第一實施例螺帽、循環元件 及固定蓋之剖視圖。 第十二圖係為本發明第二實施例循環元件之上 環件與下循環件的分解圖。c is a set of diagrams of the nut of the circulating ball screw outside the conventional technology. The third drawing is a partial cross-sectional view of the recirculating ball screw of the first embodiment of the present invention. The fourth figure is a partial exploded view of the circulating ball screw of the first embodiment of the present invention. The fifth drawing is an exploded view of the nut and a circulating element of the recirculating ball screw of the first embodiment of the present invention. The sixth figure is the assembled sound diagram of the nut, the circulating element (lower circulation part) and the rolling element of the circulating ball screw of the first embodiment of the present invention. The seventh figure is the first-closed cycle element of the present invention. An exploded view of the upper and lower circulation members. Fig. 8A is a perspective view of the upper circulating member of the first embodiment of the present invention. Figure 8B is a perspective view of the lower cycle member of the first embodiment of the present invention. The ninth drawing is an assembly diagram of the circulation member and the lower circulation member on the circulation element of the first embodiment of the present invention. 14 201226741 The tenth drawing is a front view of the circulation element of the first embodiment of the present invention. The tenth-figure is a cross-sectional view of the nut, the circulation member, and the fixing cover of the first embodiment of the present invention. Fig. 12 is an exploded view of the ring member and the lower circulating member of the circulating member of the second embodiment of the present invention.
第十三A圖係為本發明第二實施例上循環件 第十三B圖係為本發明第二實施例下循環件立 實施例循環元件之上循 貫'施例填充部與安裝孔 第十四圖係為本發明第 環件與下循環件的組立圖。 第十五圖係為本發明第 配合示意圖。The thirteenth Ath drawing is the second embodiment of the present invention. The thirteenth Bth drawing is the second embodiment of the second embodiment of the present invention. The fourteenth figure is an assembly diagram of the first ring member and the lower ring member of the present invention. The fifteenth figure is a schematic diagram of the first cooperation of the present invention.
15 201226741 【主要元件符號說明】 習知技術 1 長軸 1 1 滾動溝 2 螺帽 2 1 穿孔 2 1 1 滾動槽 2 2 安裝孔 3 固定蓋 4 循環元件 4 1 第一構件 4 2 第二構件 4 3 迴流道 G 徑方向 本發明 5 長軸 5 1 滾動溝 6 螺帽 6 1 穿孔 6 1 1 滾動槽 6 2 安裝孔 6 2 1 軸線 6 2 2 内緣面 D 夾角 6 3 承靠面 7 固定蓋 7 1 固定槽 8 循環元件 8 A 銜接段 8 B 插設段 8 1 迴流道 8 2 上循環體 8 2 1、8 3 1 半迴流道 8 2 2、8 3 3 > 8 3 5 2 定位部 8 2 3、8 3 5 接合面 16 201226741 8 3 下循環體 8 3 2 導引片 8 3 4 抵靠面 8 3 5 填充部 8351 銜接迴流道 8 1 A 直線段 8 1 B 轉向段 8 1 C 導引段 9 滾動體 1 0 0 負荷路徑 X 銜接位置 B 撞擊處 Y 滾動體進入方向 G 軸方向 τ 位移方向 • R 旋轉自由度 C 分離方向15 201226741 [Explanation of main component symbols] Conventional technology 1 Long axis 1 1 Rolling groove 2 Nut 2 1 Perforation 2 1 1 Rolling groove 2 2 Mounting hole 3 Fixing cover 4 Recirculating element 4 1 First member 4 2 Second member 4 3 Return path G Diameter direction The present invention 5 Long shaft 5 1 Rolling groove 6 Nut 6 1 Perforation 6 1 1 Rolling groove 6 2 Mounting hole 6 2 1 Axis 6 2 2 Inner edge face D Angle 6 3 Bearing surface 7 Fixing cover 7 1 fixing groove 8 circulating element 8 A connecting section 8 B insertion section 8 1 return path 8 2 upper circulation body 8 2 1 , 8 3 1 semi-return path 8 2 2, 8 3 3 > 8 3 5 2 positioning part 8 2 3, 8 3 5 Joint surface 16 201226741 8 3 Lower circulation body 8 3 2 Guide piece 8 3 4 Abutment surface 8 3 5 Filling part 8351 Connecting return flow path 8 1 A Straight line section 8 1 B Steering section 8 1 C Guide section 9 Rolling element 1 0 0 Load path X Engagement position B Impact point Y Rolling element entry direction G Axis direction τ Displacement direction • R Rotation degree of freedom C Separation direction