九、發明說明： 【發明所屬之技術領域】 本發明關於一種滚珠螺帽。 【先前技術】 於各種滾珠轉裝置中，藉由螺桿與·雜合，將轉動轉 料線性傳動。糾，再藉由簡__料及滾珠螺帽與螺 _彳禮祕配，來減讀_獻獅_輕力，使滾珠螺桿裝 置於運行時更為平順。 、 • 'ΌΑ圖1所不’其為螺桿11及滾珠螺帽12的示意圖。_ • w濃珠螺幹裝置1包含一螺桿11以及-滾珠螺帽I2，滾珠螺 帽12套設並滑設於螺桿11上，且螺桿11與滾珠螺帽12鄰接位 j分別對應具有螺紋槽⑴、12卜該等螺紋槽⑴、⑵共同形成 猶祕徑’毅滾珠B於循觀徑内滾動。藉由滾珠B於猶淨 修路径内滾動，可使螺桿u與滾珠螺帽12進行相對螺旋運動，並 使滾珠螺帽12沿螺桿11移動。 然而，當螺桿11設有用以避免螺桿11下垂的支撐件13時， 、右渡珠螺帽12移動至支#件Π的位置’則支料;I3.必須先降下 、、珠螺帽I2通過後再升起。如此，不僅造成滾珠螺帽12的移 動不連貫’且當支撐件13降下時，螺桿u會因自身重量而下垂， 且螺知· Π會因滾珠螺帽〗2的負荷及移動而產生晃動，致使滾珠 累才干裝置1於應用時會產生製程精度的問題。 1328658 螺桿上移動的 因此，如何設計-種能平順地於設有支標件之 滚珠螺帽，已成為重要課題之—。 【發明内容】 支γΠΓ縣，本發批目的為提供—触句地於設有 =件之轉上義，且切倾日键供切作祕 應用時不致影響製程精度的滾珠螺帽。 為達上述目的，依據本發明之一種滾珠螺帽滑設於一螺桿 上，螺桿具有一螺紋槽， 接硬心姑 支掠件頂抵於螺桿的下緣，滾 珠_的特徵在於··滾珠螺帽具有一開口， 滾珠螺帽對應螺桿的螺紋槽而設置 于應開口 5又置 ^ ,仿 曰〜置螺紋槽，該等螺紋槽對應形 核>、一第-滾珠通道，滾珠職設置至少—第二滾珠通道，第 一滚珠通道及第二滚珠通道制形成至少—第―猶環路徑。 為達上述目的’依據本發明之一種滚珠螺帽滑設於一螺桿 ^且至乂支擇件頂抵於螺桿的下緣，滚珠螺帽的特徵在於： 滾珠螺帽具有-開σ，支撐件對應開口設置。 。承上所述’依縣發明之滾珠螺麟顧抵於螺桿下緣之支 撐件的位置具有—開σ，因此能夠避免滾珠螺帽因支料的位置 =產生夕移動不連貫的問題，以使滾珠螺帽能平順地於螺桿上移 動。另外，支騎隨時提供支撐作用於轉，而使裝置應用時不 致影響製程精度。 6 1^28658 【實施方式】 以下將參照相關圖式，說明依據本發明較佳實施例之滾珠螺 帽，其中相同元件以相同標號表示。 .· *月麥照圖2A及圖2B所示’本發明較佳實施例之-種滾珠螺 :帽22應用於一滾珠螺桿裝置2。滚珠螺帽22套設並滑設於一螺桿 .21上’螺桿21具有一螺紋槽211，且至少-支撐件23頂抵於螺 桿21的下緣。於本實施例中，以複數支擇件μ為例作說明。 • 滾珠螺帽22具有—開口 0，其截面實質可呈C形或Ω形， 於本實施例中，滾珠螺帽22的截面以c形為例作說明。滾珠螺帽 ,22對應螺桿21的螺紋槽211而設置-螺紋槽221，螺桿21之螺 •紋槽211與滾珠螺帽22之螺紋槽221對應形成至少一第一滾珠通 道P卜滾珠螺帽22設置至少-第二滾珠通道p2，第一滾珠 P1及第二滚珠通道P2共同形成至少一第—循觀徑u。複數滾 珠B則於第-循環路徑L1内運動。其_需注意者第二滾珠通道 # P2可依據設計而設置於滾珠螺帽22的外表面或滚珠螺帽a的肉 厚内。 於本實施例中，該等滚珠B更為-滚珠保持器24所串聯，其 、中滾珠保持器24的樣式及設計方式並無限制。 支擇件23對應滾珠螺帽22的開口 〇設置並頂抵螺桿21的下 緣。另外，於本實施例中，支樓件23具有至少—滾柱231或至少 -滾珠，滾柱况或滾珠頂抵螺桿W的下緣，藉由滾動縣取代 滑動摩擦而能夠降低支撐件23與螺桿之間的摩擦力。於本實施例 7 丄以8658 中，支禮件23以具有複數滾柱231為例作說明。 另外’滚珠螺桿裝置_2更可包含一防塵元件Μ ,其套設於 珠螺帽22的外表面。防塵元件25除用以防止灰塵或異物進入螺、 :桿21與滾珠螺帽22之間外，更可避免滾珠B由滚珠螺㈣掉落。、 因此，由於滚珠螺帽22對應支撐件23的位置具有開口 〇洛° .編b可避免滾珠螺帽22因支撐件23的位置而產生軸不連貫的 問題，以使滾珠螺帽22能平順地於螺桿21上移動，使得= ㈣隨時提供支撐作用於螺桿，故滾珠· 22與螺桿Μ相= 動％，滾珠螺桿裝置2應用上不致影響製程精度。 另外，滾珠螺桿裝置2藉由支揮件Μ頂抵於螺桿^ “支撐螺桿21的重量，即可避免螺桿2 、、 ，维持水平狀態。且當滾珠3於第一循_二：： :帽22沿螺桿21移動時，支揮件23亦可用二= 滚珠螺帽22上_重量。即使滾珠_ ^ 經由支撐件23得到，力，因此可避二 1==的位置改變產生晃動的問題。除此之外，藉由調 •支按件23的高度更可校準螺桿21的水平精卢。 以 ' =照圖3A及圖3B所示，其為本實 夤化悲樣的示意圖。如圖3 I、有不冋 之間的滾珠B數量，滾珠螺捍裝置3 :::一:t:螺帽处 8 1328658 =31下緣同樣由支撐件％頂抵，滾珠螺帽孤亦套設防塵元 一/如圖3B所示，螺桿31及滚珠螺帽32b更共同形成至少一第 1^路^12°其中，第一循環路徑〇與第二循環路虹2可依 =叹相=相互交錯、平行或不平行。於此以2條第—循環路徑 弟—物路徑L2，且苐—概路徑U與第二循環路徑 2相互交錯為例作說明，然其非用以限制本發明。 示滾珠保持器，然實際應用該等滚❹亦可為―料^ 持斋所串聯。 ‘上所述，依據本發明之滾_巾睛應她於螺桿下緣之支 1的位置具有—開口，能夠避免滾珠螺_支撐件的位置 生移動不連貫的_，讀滾珠螺帽能平順地於螺桿上移 致切件隨時提供支撐作驗螺桿，而使裝置應用時不 。騎加嫌量觸物·，細帽 …累#間之麟路徑可具有不_設計方式。 之述僅為舉娜，㈣為限舰者。任何未脫離本發明IX. Description of the Invention: [Technical Field to Which the Invention Is Ascribed] The present invention relates to a ball nut. [Prior Art] In various ball turning devices, the rotary converter is linearly driven by a screw and a hybrid. Correction, and then by reading the __ material and the ball nut and the screw _ 彳 秘 secret, to reduce the _ lion _ light force, so that the ball screw is placed in the running smoother. , ''Figure 1'' is a schematic view of the screw 11 and the ball nut 12. _ • The thick bead screw device 1 comprises a screw 11 and a ball nut I2. The ball nut 12 is sleeved and slidably disposed on the screw 11, and the screw 11 and the ball nut 12 are adjacent to each other with a thread groove. (1), 12b These thread grooves (1), (2) together form the Jubilee Trail 'Yi Ball B to roll in the path of view. By rolling the ball B in the healing path, the screw u and the ball nut 12 are relatively spirally moved, and the ball nut 12 is moved along the screw 11. However, when the screw 11 is provided with the support member 13 for avoiding the sagging of the screw 11, the right bypass nut 12 is moved to the position of the support member, and the support is required; I3. must be lowered first, and the bead nut I2 is passed. Then rise again. In this way, not only does the movement of the ball nut 12 become inconsistent, and when the support member 13 is lowered, the screw u will sag due to its own weight, and the screw will be shaken due to the load and movement of the ball nut. As a result, the ball tidying device 1 has a problem of process accuracy when applied. 1328658 Moving on the screw Therefore, how to design a kind of ball nut with a standard member has become an important issue. [Summary of the Invention] In the γΠΓ County, the purpose of this batch is to provide a ball nut with a sense of the meaning of the process, and the ball key is not affected by the process. In order to achieve the above object, a ball nut according to the present invention is slidably disposed on a screw, the screw has a thread groove, and the hard core abuts against the lower edge of the screw, and the ball is characterized by a ball screw The cap has an opening, and the ball nut is disposed corresponding to the thread groove of the screw, and is disposed at the opening 5, and the thread groove corresponding to the nucleus>, the first ball-ball channel, and the ball bearing position is at least - a second ball passage, the first ball passage and the second ball passage forming at least a - first - loop path. In order to achieve the above object, a ball nut according to the present invention is slidably disposed on a screw and the top of the yoke is abutted against the lower edge of the screw. The ball nut is characterized in that: the ball nut has an open σ, the support member Corresponding to the opening setting. . According to the above-mentioned invention, the ball screw stalk of the invention has a position-opening σ at the position of the support member at the lower edge of the screw, so that it is possible to avoid the problem that the ball nut is inconsistent due to the position of the support material. The ball nut moves smoothly on the screw. In addition, the support is always provided with support for the rotation, so that the application does not affect the process accuracy. 6 1^28658 [Embodiment] Hereinafter, a ball nut according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein like elements are designated by like numerals. </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The ball nut 22 is sleeved and slidably disposed on a screw .21 The screw 21 has a threaded groove 211, and at least the support member 23 abuts against the lower edge of the screw 21. In the present embodiment, the plural selector μ is taken as an example for illustration. • The ball nut 22 has an opening 0, and its cross section may be substantially C-shaped or Ω-shaped. In the present embodiment, the cross-section of the ball nut 22 is exemplified by a c-shape. The ball nut 22 is provided with a thread groove 221 corresponding to the thread groove 211 of the screw 21, and the screw groove 211 of the screw 21 and the thread groove 221 of the ball nut 22 form at least one first ball passage Pb ball nut 22 At least a second ball passage p2 is provided, and the first ball P1 and the second ball channel P2 together form at least one first tracking path u. The plurality of balls B move in the first-loop path L1. It should be noted that the second ball passage # P2 can be disposed on the outer surface of the ball nut 22 or the thickness of the ball nut a depending on the design. In the present embodiment, the balls B are further connected in series with the ball retainers 24, and the style and design of the middle ball retainers 24 are not limited. The retaining member 23 is disposed corresponding to the opening 〇 of the ball nut 22 and abuts against the lower edge of the screw 21. In addition, in the present embodiment, the branch member 23 has at least a roller 231 or at least a ball, and the roller condition or the ball abuts against the lower edge of the screw W, and the rolling member can reduce the support member 23 by replacing the sliding friction. Friction between the screws. In the seventh embodiment of the present invention, the gift member 23 has a plurality of rollers 231 as an example for description. Further, the ball screw device _2 may further include a dustproof member 套 which is sleeved on the outer surface of the bead nut 22. In addition to preventing dust or foreign matter from entering the snail, the rod 21 and the ball nut 22, the dustproof member 25 can be prevented from falling by the ball screw (4). Therefore, since the ball nut 22 has an opening position corresponding to the position of the support member 23, the knitting b can prevent the ball nut 22 from being inconsistent due to the position of the support member 23, so that the ball nut 22 can be smoothed. The ground moves on the screw 21 so that = (4) provides support for the screw at any time, so the ball 22 and the screw = phase = %, and the ball screw device 2 does not affect the process accuracy. In addition, the ball screw device 2 can avoid the screw 2 and the horizontal state by the weight of the support screw 21 by the support dome, and when the ball 3 is in the first cycle _2::: cap When the screw 21 moves along the screw 21, the support member 23 can also use the weight of the ball = 22 on the ball nut 22. Even if the ball _ ^ is obtained via the support member 23, the force can be prevented from swaying due to the position change of the second ==. In addition, the level of the screw 21 can be calibrated by adjusting the height of the pressing member 23. As shown in Fig. 3A and Fig. 3B, it is a schematic diagram of a sad example. 3 I, the number of balls B between the ball and the ball, the ball screw device 3 ::: one: t: the nut at the 8 1328658 = 31 lower edge is also supported by the support member %, the ball nut is also set to be dustproof As shown in FIG. 3B, the screw 31 and the ball nut 32b together form at least one first path ^12°, wherein the first circulation path 〇 and the second circulation path 虹 2 can be interspersed with each other. Parallel or non-parallel. This is an example of a two-first loop path, the object path L2, and the 苐-general path U and the second loop path 2 are interleaved. However, it is not intended to limit the present invention. The ball retainer is shown, but the actual application of the rollers can also be connected in series with the material. As described above, the roller according to the present invention should be under the screw. The position of the branch 1 has an opening, which can avoid the positional movement of the ball screw _ support member is incoherent _, the read ball nut can smoothly move on the screw to cause the cutting member to provide support for the test screw at any time, and the device When applying, do not ride. Adding a sensible amount of touch, · thin cap... tired #间之麟的路径可以有不_设计方式. The description is only for the na, (4) is the limiter. Any without leaving the invention
而對其進行之等效修改或變更，均應包含於後附 之申凊專利範圍中。 【圖式簡單說明J 圖1為習知螺桿及滚^^螺帽的示意圏； 圖从為本發明較佳實施例之一種滾珠螺帽的示意圖 9 1328658 圖2B為應用本發明滚珠螺帽於滚珠螺桿装置的示意圖以及 圖3A及圖3B為本發明滾珠螺帽具有不 同變化態樣的示意 圖。 【主要元件符號說明】 I、 2:滾珠螺桿裝置 II、 21、31 :螺桿 III、 121、211、221 :螺紋槽 12、22、32 :滾珠螺帽 13 ' 23 ' 33 :支撐件 231 :滾柱 24 :滾珠保持器 25、35 ·防塵元件 B ·滾珠 L1 :第一循環路徑 L2 .苐二循環路徑 0 :開口 .P1 ··第—滚珠通道 P2 ·第二滾珠通道Equivalent modifications or changes to this document shall be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a conventional screw and a screw; FIG. 2 is a schematic view of a ball nut according to a preferred embodiment of the present invention. 9 1328658 FIG. 2B is a view of a ball nut to which the present invention is applied. A schematic view of a ball screw device and FIGS. 3A and 3B are schematic views of different variations of the ball nut of the present invention. [Description of main component symbols] I, 2: Ball screw device II, 21, 31: Screw III, 121, 211, 221: Thread groove 12, 22, 32: Ball nut 13 ' 23 ' 33 : Support 231 : Roll Column 24: Ball retainer 25, 35 · Dustproof element B · Ball L1: First circulation path L2. Second loop path 0: Opening. P1 · · No. - Ball passage P2 · Second ball passage