1328657 九、發明說明： 【發明所屬之技術領域】 本發明關於一種滾珠螺桿裂置。 【先前技術】 於各種滾珠螺桿裝置巾，兹+ 換為螺桿與螺帽的配合，將轉動轉 尸龙以 外，再藉由可循環作動的滾珠及滾珠螺帽盥螺 =此搭配，㈣丨她彻 = 置於運行時更為平順。 n珠螺#農 請參照圖1A及圖1B所示’苴 側視圖，圖m為螺桿u與滾珠螺帽二1=珠螺桿裝置1的 螺桿裝置1包含,η以及種習知滾珠 具有螺紋二η、▲ :士 11與康珠螺帽12鄰接位置分別對應 複數二、121 ’5亥等螺紋槽U1、121共同形成-猶環路徑， 獲數滾珠Β於倾路彳饰錄。藉域糾 内 可使螺桿11與滾物胃12進彳 内絲’ 沿螺桿U移動。 仃相對螺紅運動’並使滾珠螺帽12 然而，當螺糾的長度較長時，受重力下垂的影響會使得螺 干的間位置較兩端為低，致使滾珠螺桿 產 生編呈精度的問題。另外，若滾珠螺帽12上的負載=用 螺巾目I2於螺桿η上軸時’螺桿n更會滚的 置改變而產生晃__。 轉職12的位 5 1328657 因此，如何設計i㈣確賴縣持斜狀㈣滾珠螺桿 裝置，已成為重要課題之一。 【發明内容】 _於上述課題，本㈣之目的為提供—種能夠確保螺桿維 持水平狀態的滾珠螺桿裝置。 曰為達上述目的，依據本發明之—種滾珠螺桿裝置包含一螺 料螺巾目以及至少_支料。滾麵帽套設並滑設於螺桿 上’且滾珠螺帽具有―開口，支稽件對應開口設置並頂抵螺桿的 下緣。 . 纟上所述，依據本發明之滾賴桿裝置藉由至少-支撐件頂 .抵於螺桿的下緣，以支擇螺桿本身的重量，藉此可避免螺桿受重 垂的〜響’確倾桿轉水平狀態。且當滾珠螺巾胃負載過重 支擇件亦可用以支撐螺桿及滚珠螺帽上之貞載的重量，以避 #倾备隨者滾珠螺帽的位置改變而產生晃動的問題。除此之外， 7周正支標件的水平高度更可用以校準螺桿的水平精度。另 袞珠螺巾目對應支樓件的位置具有一開口，因此能夠避免 二朱螺巾目因支撐件的位置而產生移動不連貫的問題，以使滚珠螺 帽能平順地於螺桿上移動。 【實施方式】 心下將參知相關圖式’說明依據本發明較佳實施例之滾珠螺 以置，其中_元件以相隨號表示。 6 1328657 請參照圖2所示，本發明較佳實施例之一種滚珠螺桿裝置2 包含一螺桿21、一滚珠螺帽22以及至少一支樓件23。於本實施 例中，以複數支撐件23為例作說明。 螺桿21具有一螺紋槽211。滾珠螺帽22套設並滑設於螺桿 21上，且滾珠螺帽22具有一開口 〇及一螺紋槽221，而滾珠螺帽 -22之截面實質可呈C形或Ω形，於本實施例中，滾珠螺帽&的 截面以C形為例作έ兒明。其中，螺桿21之螺紋槽2U與滾珠螺帽 鲁22之螺紋槽221對應形成至少一第一滾珠通道Ρ1，且滾珠螺帽22 更可設置至少一第二滾珠通道Ρ2，第一滾珠通道ρι及第二滾珠1328657 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a ball screw splitting. [Prior Art] In the various ball screw device towels, the combination of the screw and the nut will be turned into a turret, and then the ball and the ball nut will be rotated by the reversible ball. This match, (4) 丨 her Tough = puts it smoother at runtime. Please refer to the side view of Figure 1A and Figure 1B. Figure m shows the screw unit of the screw u and the ball nut 2 1 = bead screw device 1. The η and the conventional ball have the thread 2 η, ▲: The adjacent position of Shishi 11 and Kangzhu nut 12 corresponds to the complex number two, 121 '5 Hai and other thread grooves U1, 121 together form a heave path, and the number of balls is smashed in the way. By means of the field correction, the screw 11 and the roller stomach 12 can be moved into the inner wire ' along the screw U.仃 Relative snail red motion 'and the ball nut 12 However, when the length of the snail correction is long, the influence of gravity sag will cause the position of the screw to be lower than the two ends, causing the ball screw to produce the accuracy of the knitting. . Further, if the load on the ball nut 12 = when the screw head I2 is on the upper axis of the screw θ, the screw n is more likely to roll and the __ is generated. Transferring position 12 5 1328657 Therefore, how to design i (four) is indeed one of the important topics in the county's diagonal (four) ball screw device. SUMMARY OF THE INVENTION In order to solve the above problems, the object of the present invention is to provide a ball screw device capable of ensuring a state in which the screw is maintained horizontally. In order to achieve the above object, a ball screw device according to the present invention comprises a screw screw head and at least a material. The rolling cap is sleeved and slidably disposed on the screw' and the ball nut has an opening, and the supporting member is disposed corresponding to the opening and abuts against the lower edge of the screw. According to the present invention, the roller bar device according to the present invention can reduce the weight of the screw itself by at least supporting the top of the support member against the lower edge of the screw, thereby avoiding the screw being sag. The tilting lever turns to the horizontal state. Moreover, when the ball screw is heavily loaded on the stomach, the supporting member can also support the weight of the screw on the screw and the ball nut to avoid the problem of shaking due to the change of the position of the ball nut. In addition, the level of the 7-week positive standard can be used to calibrate the horizontal accuracy of the screw. In addition, the position of the bead screw has an opening corresponding to the position of the branch member, so that the problem of the movement inconsistency due to the position of the support member can be avoided, so that the ball nut can smoothly move on the screw. [Embodiment] A ball screw will be described in accordance with a preferred embodiment of the present invention, wherein the elements are indicated by the accompanying numerals. 6 1328657 Referring to FIG. 2, a ball screw device 2 according to a preferred embodiment of the present invention includes a screw 21, a ball nut 22 and at least one floor member 23. In the present embodiment, the plurality of supports 23 will be described as an example. The screw 21 has a threaded groove 211. The ball nut 22 is sleeved and slidably disposed on the screw 21, and the ball nut 22 has an opening 〇 and a threaded groove 221, and the cross section of the ball nut -22 can be substantially C-shaped or Ω-shaped, in this embodiment. In the middle, the cross section of the ball nut & The thread groove 2U of the screw 21 and the thread groove 221 of the ball nut 22 form at least one first ball passage Ρ1, and the ball nut 22 can further be provided with at least one second ball passage ,2, the first ball passage ρ Second ball
. * 7 ^ —淚珠通道Ρ2可依據設 。十而设置於滾珠螺巾旨22的外表面或滾珠螺帽22的肉厚内。 於本實施例中，該粒珠Β更為—滾珠保持a 24所串聯，其 中滾珠保持器24的樣式及設計方式並無限制。 口 〇設置並頂抵螺桿21的下* 7 ^ — Teardrop channel Ρ 2 can be set according to . It is disposed on the outer surface of the ball screw 22 or the thickness of the ball nut 22. In the present embodiment, the bead rafts are further connected in series with the balls 24, wherein the style and design of the ball retainers 24 are not limited. The mouth is set and pressed against the bottom of the screw 21
支撐件23對應滾珠螺帽22的開 緣。另外，於本實施例中，支禮件2: 滾珠，滾柱231或滚玫了1姑丨14目ο 7 1328657 桿:珠 1帽22之間外，更可_珠B __ 22齡 來支置2藉由支撐件23頂抵於 累杯捕水彻1當滾珠B於第—循環路虹 .滾珠螺帽22沿螺桿21移動時，支撐件 tr22的位纽變產生絲_題。除此之外，藉_整該ΐ 支撐件23的南度更可校準螺桿21的水平精度。 另外，由於滚珠螺帽22對應支撐件23又的位置具有開口 〇, 藉此可避免滾珠螺帽22因φ擔杜& p,a 岐料23的位置而產生移動不連貫的 料，以使滾_帽22能平舰於螺桿21上移動。 明參關3A及圖3B所示，其為本實施例滾珠螺桿裝置具 不同變化態樣的示意圖。如圖3A所示，為增加螺桿Η與滾珠螺 巾目32之關滾珠B數量，滾麵_ 3具有概第—彳盾環辭 :L1 ’於此以4絲—循環路徑U為例，然其_嫌制本發明。 .另外，滚珠螺桿裝置3同樣具有切件33及防塵元件％。 如圖犯所示’滾珠螺桿裝置3a的螺桿31及滾珠螺帽& 共同形成至少-第二循轉徑L2。其中，第—循環路徑U 二循環雜L2可依據設計吻目衫錯、平行或斜行。於此以 2條第-循環路徑L1及2條第二猶環路徑L2，且第—循環路徑 8 發明L2相互交錯為例作說明，然其_以限制本 發明。其中需注音 十 滾珠B亦可A — t，於此未表示滾珠保龍，然實際應用該等 為一滾珠保持器所串聯。 ' 、依據本發明之滾珠螺桿裝置藉由至少一支撐件頂 抵於螺桿的下緣， 曰 . 又保螺杯本身的重I，猎此可避免螺桿受重 ^ s確保螺桿維持水平狀態。且當滾珠螺帽負載過重 **巾可用以支撐螺桿及滾珠螺帽上之負載的重量以避 2桿隨著滾珠螺_位置崎而產生晃動的問題。除此之外， 曰·支標件的水平高度更可用以校準螺桿的水平精度。另 生由1滾珠螺帽對應支撐件的位置具有一開口，因此能夠避免 =螺巾目因支撐件的位置而產生移動不連貫的問題，以使滾珠螺 中目月b平順地於螺桿上移動。 以上_僅為舉舰’而非為限繼者。任何未麟本發明 ，與齡，而對其進行之較修改或變更，均應包含於後附 <申請專利範圍申。 【圖式簡單說明] 圖1A為一種習知滾珠螺桿裝置的側視圖； 圖1B為習知螺桿與滾珠螺帽的示意圖； 圖2為本發明較佳實施例之—種滾珠螺桿裝置的示意圖，·以 圖3A及圖3B為本發明之滚珠螺桿裝置具有不同變化態樣的 1328657 示意圖。 【主要元件符號說明】 I、 2、3、3a :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 23、33 :支撐件 231 :滚柱 24 :滚珠保持器 25、35 :防塵元件 B :滾珠 L1 :第一循環路徑 L2 :第二循環路徑 0 :開口 P1 :第一滾珠通道 P2 :第二滾珠通道The support member 23 corresponds to the opening edge of the ball nut 22. In addition, in this embodiment, the gift member 2: the ball, the roller 231 or the roller rose 1 aunt 14 mesh ο 7 1328657 rod: between the bead 1 cap 22, and more _ beads B __ 22 years old When the ball B is moved along the screw 21 by the support member 23, the position of the support member tr22 is changed to generate a wire problem. In addition to this, the horizontal accuracy of the screw 21 can be calibrated by the southness of the 支撑 support member 23. In addition, since the ball nut 22 has an opening 对应 corresponding to the position of the support member 23, it is possible to prevent the ball nut 22 from moving incoherent due to the position of the 螺 杜 & & p p The roll_cap 22 can move the flat ship on the screw 21. As shown in Fig. 3A and Fig. 3B, it is a schematic view of the ball screw device of the embodiment having different variations. As shown in FIG. 3A, in order to increase the number of ball B of the screw Η and the ball screw 32, the rolling surface _ 3 has an overview - 彳 环 辞 : :: L1 ' here with 4 wire - circulation path U as an example, It is suspected of being the invention. Further, the ball screw device 3 also has the cutting member 33 and the dustproof member %. As shown in the figure, the screw 31 of the ball screw device 3a and the ball nut & together form at least a second rotation path L2. Among them, the first loop path U two loops of miscellaneous L2 can be designed according to the wrong, parallel or oblique lines of the kiss shirt. Here, the two first-loop paths L1 and the two second quasar paths L2, and the first-cycle path 8 invention L2 are interleaved as an example, and the present invention is limited thereto. Among them, the ten-track ball B can also be A-t, which does not indicate the ball-bearing dragon. However, the actual application of these is a ball cage. The ball screw device according to the present invention is placed against the lower edge of the screw by at least one support member, and the weight I of the screw cup itself is maintained, thereby avoiding the weight of the screw to ensure that the screw maintains a horizontal state. And when the ball nut is overloaded, the ** towel can be used to support the weight of the load on the screw and the ball nut to avoid the problem of swaying with the ball screw _ position. In addition to this, the level of the 支· yoke can be used to calibrate the horizontal accuracy of the screw. The position of the ball bearing nut corresponding to the support member has an opening, so that it is possible to avoid the problem that the movement of the screw ring causes the movement to be incoherent due to the position of the support member, so that the ball screw b smoothly moves on the screw. . The above _ is only for the ship's and not for the limiter. Any changes or modifications to the invention and its scope shall be included in the appended < patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1A is a side view of a conventional ball screw device; FIG. 1B is a schematic view of a conventional screw and ball nut; FIG. 2 is a schematic view of a ball screw device according to a preferred embodiment of the present invention; 3A and 3B are schematic views of the 1328657 of the ball screw device of the present invention having different variations. [Main component symbol description] I, 2, 3, 3a: Ball screw device II, 21, 31: Screw III, 121, 211, 221: Thread groove 12, 22, 32: Ball nut 23, 33: Support member 231 : Roller 24 : Ball cage 25 , 35 : Dustproof element B : Ball L1 : First circulation path L2 : Second circulation path 0 : Opening P1 : First ball passage P2 : Second ball passage