200912162 九、發明說明： 【發明所屬之技術領域】 本發明係為-種螺帽旋轉式滾珠螺桿，尤指一種以滾 柱（滾錐）作為軸承外環與螺帽之間傳動介f的螺帽旋轉 式滾珠螺桿。 【先前技術】 ’螺帽旋轉式滚珠螺桿係將螺帽與輛承外環一體成 型’該軸承外環係與工作平a σ固疋而動力馬達係藉由皮 :=傳送至螺帽，盡而使螺帽相對於螺桿轉動，將轉 矩賴成軸向運動進而㈣工作平台，其主要為螺桿 口疋，因此沒有螺桿旋轉時 珠蟫… 于’生力，用於細長比大的滾 爾干亦㈣速進給’並可選用較小驅 應用於半導體機械、木工機、搬 主要 種工業應«具#要性也μ/喻置4.·.，對於現今各 然’習知螺帽旋轉式滚珠螺桿 主要由-螺桿1、一螺帽2、_第一圖所示)，其 梯m ζ、一軸承外 桿1與該螺帽2之間設料干滾動件卜^成’該螺 承外環3之間係設有若干滾珠4;而習=螺帽2與該轴 螺桿的問題點在於，當，該螺桿i 轉式滚珠 件5有效珠—能受負荷的滾動之間的滾動 ;嶒加時，螺桿 200912162 1和螺帽2之間所能承受的負荷能力也相對增加，但，該 螺帽2與錄承外環3之間所設之滚珠4數量並無法增 加’只能藉由加大該滾珠4之外徑，使得軸承外環3和螺 帽2之間所能承受軸向負荷能力與螺帽2和螺桿丄之間 所能承受軸向負荷能力相互匹配，但此解決方式會造成軸 承外環3的外徑增加，使得滾珠螺桿不符合機台的規格， 故所能加大該滾珠4之外徑也是有限的，相對的所能增加 的軸向負荷能力也是有限的；但如無將此問題點解決，將 會使螺帽旋轉式滾珠螺桿無法達到預期的負荷能力，嚴重 則會造成使用壽命減短。 有鑑於此，本發明人乃以多年的專業經驗與心得，餐 不斷構思、創研，乃研發出本發明，用以改善 0¾¾。 4之技術 【發明内容】 基於上述習知螺帽旋轉式滾珠螺桿之問題點 人經過研究改良後，終有確能達成1月 誕生。 Γ赞明之目的之發明 ，承外環和螺帽之間所能 杯之間所能承受軸向負荷 即’本發明首要目的在於， 承受軸向負荷能力與螺帽和螺 能力相互匹配。 200912162 為達上述之目的，本發明係為一種螺帽旋轉式滾珠螺 桿，係包含： 螺才干其上攻有第一滾動溝； 螺知係套設於該螺桿上，其内緣設有相對該第一 滾動溝之第-滾動槽，外緣係設有若干第二滾動槽； 一轴承外環，係套設於該螺帽上，其内緣係設有相對 該第二滾動槽之第二滾動溝； 若干第-滾動件，係裝設於該第—滚動溝與第一滾動 槽之間，使該螺桿與螺帽可相對螺旋運動； /沿肌兀件，係裝設於該螺帽上，其上設有-迴流道， 係提供第一滾動件無限循環； 溝之門動件，#、裝設於該第二滾動槽與第二滾動 轴承外環可相對旋轉運動；該第二滾 動件表面係與該第二滚動 鋪Μ Ρ 展動槽及第二浪動溝之表面為線接 藉由線接觸所能承受負荷的能力大於點接觸（習 口術因使用滾珠，故滚珠與滾動面為點接 性，將軸承外環和螺帽之鬥鮮处7 和碟炉♦ „ 曰1所I承党軸向負荷能力與螺帽 命^干所能承受轴向負荷能力相互匹配，以提升其壽 =說明本創作之實施特點，以下說 白用進步之處及實用方式： 平乂 200912162 發月累巾a旋轉式滾珠螺桿，其軸承外環與螺帽之間 的第二滾動件為線接觸狀態，故較習知點接觸狀態所能承 負荷的能力大’所以不需增加第二滾動件之外徑即 可與螺捍和螺帽之間所能承受轴向負荷能力相互匹配，故 不會有增加軸承外環之外徑的問題產生。 、為了更進-部瞭解本發明之特徵及技術内容，請參閱 、有關本發月之Λ施方式說明及圖式，然而此實施方式 及圖式僅供說明及參相，而_以對本發明做任何限制 【實施方式】 /本發明之實施例請參閱第二圖及第三圖所示，本發 明係為一種螺帽旋轉式滾珠螺桿，係包含： 一螺桿1，其上設有第一滾動溝土工； 螺巾目2係套设於該螺桿1上，其内緣設有相對該 第—滾動溝1 1之第-滾動槽2 i，外緣係設有若 滾動槽22; 一軸承外環3 ’係套設於該螺帽2上，其内緣係設有 相對該第二滾動槽22之第二滾動溝3丄； 右干第一滾動件5，係裝設於該第-滾動溝1 1與第 滾動槽2 1之間，使該螺桿工與螺帽2可相對螺旋運 200912162 動； 迴流元件6，係震設於該螺帽2上，其上設有―200912162 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a nut-rotating ball screw, and more particularly to a screw (roller cone) as a screw for driving between an outer ring of a bearing and a nut. Cap rotary ball screw. [Prior Art] 'The nut rotary ball screw system integrally forms the nut with the outer ring of the bearing'. The outer ring of the bearing is fixed to the working level and the power motor is transferred to the nut by the skin: And the nut is rotated relative to the screw, the torque is dependent on the axial movement and (4) the working platform, which is mainly the screw port 疋, so there is no screw rotation when the screw is rotated... Dry also (four) speed feed 'and can be used for small-scale drive in semiconductor machinery, woodworking machines, moving the main species of industry should be «has the nature of μ also / meta-set 4... for today's various 'native nuts The rotary ball screw is mainly composed of - screw 1, a nut 2, _ first figure), and the ladder m ζ, a bearing outer rod 1 and the nut 2 are provided with a dry rolling element. A plurality of balls 4 are disposed between the outer ring 3; and the problem with the nut 2 and the shaft screw is that when the screw i is rotated, the ball is effectively loaded between the balls Rolling; when adding, the load capacity between the screw 200912162 1 and the nut 2 is relatively increased, but the nut 2 is recorded The number of balls 4 provided between the outer rings 3 cannot be increased 'only by increasing the outer diameter of the balls 4, so that the bearing outer ring 3 and the nut 2 can withstand the axial load capacity and the nut 2 The axial load capacity can be matched with the screw 相互, but this solution will increase the outer diameter of the outer ring 3 of the bearing, so that the ball screw does not meet the specifications of the machine, so the ball 4 can be enlarged. The diameter is also limited, and the relative axial load capacity that can be increased is limited; however, if this problem is not solved, the nut rotating ball screw will not achieve the expected load capacity, and the service life will be severe. Shorten. In view of this, the present inventors have developed the present invention to improve the 03⁄43⁄4 by years of professional experience and experience, and the concept of the meal is continuously conceived and created. 4 Technology [Summary of the Invention] Based on the above-mentioned problems of the conventional nut-rotating ball screw, after research and improvement, it is finally possible to achieve the birth of January. The invention of the purpose of Γ 明 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , 200912162 In order to achieve the above purpose, the present invention is a nut rotating ball screw, comprising: a screw capable of having a first rolling groove; the screw is sleeved on the screw, and the inner edge is opposite to the a first rolling groove of the first rolling groove, the outer edge is provided with a plurality of second rolling grooves; a bearing outer ring is sleeved on the nut, and the inner edge is provided with a second opposite to the second rolling groove a rolling groove; a plurality of first rolling elements are disposed between the first rolling groove and the first rolling groove, so that the screw and the nut can be relatively spirally moved; / along the tendon piece, the screw is attached to the screw a cap on which a return flow path is provided to provide an infinite loop of the first rolling member; a door mover of the groove, #, and a second rotary groove and a second rolling bearing outer ring are rotatable relative to each other; The surface of the two rolling elements is in line with the surface of the second rolling shop 展 the moving groove and the second wave groove. The ability to bear the load by the line contact is greater than the point contact (the use of the ball by the mouthpiece is used) The ball and the rolling surface are point-to-point, and the outer ring of the bearing and the nut are fresh. 7 and the dish ♦ „ The axial load capacity of the 1 I-party and the ability of the nut to withstand the axial load can be matched to enhance the life = the implementation characteristics of the creation, the following is the progress and practical way: Bai Yi 200912162 Rotating ball screw, the second rolling element between the outer ring of the bearing and the nut is in line contact state, so the ability to bear the load is better than the conventional point contact state, so there is no need to increase the second The outer diameter of the rolling member can be matched with the axial load capacity between the screw and the nut, so there is no problem of increasing the outer diameter of the outer ring of the bearing. For the features and technical contents, please refer to the description and drawings of the present invention. However, this embodiment and the drawings are for illustrative and reference only, and _ to limit the invention [embodiment] / the present invention Referring to the second and third figures, the present invention is a nut rotating ball screw, comprising: a screw 1 having a first rolling groove geotechnical; Set on the screw 1 and inside The first rolling groove 2 i is opposite to the first rolling groove 1 1 , and the outer edge is provided with a rolling groove 22 ; a bearing outer ring 3 ′ is sleeved on the nut 2 , and the inner edge is provided The second rolling groove 3 is opposite to the second rolling groove 22; the right first rolling member 5 is disposed between the first rolling groove 1 1 and the first rolling groove 21, so that the screw and the nut are 2 can be relatively screwed to 200912162; the reflow element 6, the shock is set on the nut 2, which is provided with "
道6 1，係提供第-滾動件5無限循環； "'L 若干第二滚動件4【該第二滾動件係使用滾柱（ 二圖所示）或滚錐（如第三圖所示）作為傳動介質】，係 裝設於該第二滚動槽22與第二滾動溝31之間，、 帽2與軸承外環3可相對旋轉運動；該第二滾動件4表面 係與該第二滾動槽2 2及第二滾動溝3工之表面為線接 觸狀態’藉由線接觸所能承受負荷的能力大於點接觸（習 技術因使職珠，故滾珠與軸面為點接觸狀態）的特 性’將該螺帽2和轴承外環3之間所能承受軸向負荷能力 與該螺桿1和螺帽2之間所能承受軸向負荷能力相互匹 配，以提升其壽命。 、’、丁斤上述本發明藉由線接觸所能承受負荷的能力大 =點接觸的特性’將軸承外環和螺帽之間所能承受轴向負 荷能力與螺帽和螺桿之間所能承受軸向負荷能力相互匹 配’達到滾珠螺桿預期的負荷能力，並提升其壽命。所以 本發明之『具有產業之可利賴』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 胃見於諸刊物’亦未曾被公開使用’不但具有如上所述功 200912162 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，祈請惠予審查並早日賜准專利， 實感德便。 以上所述實施例之揭示係用以說明本發明，、， 限制本發明，故舉凡數值之變化與等效 w非用以 隸屬本發明之範4。 置換，仍應 200912162 f圖式簡單說明j 第一圖為螺帽旋轉式滾珠螺桿之習知技術示意圖。 第二圖為本發明螺帽旋轉式滾珠螺祥之示意圖，其轴 承外環和螺帽之間係為滾柱作為傳動介質。 、 承外1二1林發明螺_轉歧珠螺桿之示意圖，其軸 承外環和職之㈣為_料傳動介質。 【主要元件符號說明】 (習知技術） 1 螺桿 3 轴承外環 5滾動件 (本發明） 1 螺桿 2 螺帽2 2 第二滾動槽 3 輪承外環 4 第二滾動件 6 迴流元件 2螺帽 4 滾珠 第一滾動溝 第一滾動槽 弟一滾動溝 第一滾動件Road 6-1 provides an infinite loop of the first rolling element 5; "'L a number of second rolling elements 4 [The second rolling element uses a roller (shown in Figure 2) or a rolling cone (as in the third figure) The driving medium is disposed between the second rolling groove 22 and the second rolling groove 31, and the cap 2 and the bearing outer ring 3 are relatively rotatable; the surface of the second rolling member 4 is The surface of the second rolling groove 2 2 and the second rolling groove 3 is in a line contact state. The ability to withstand the load by the line contact is greater than the point contact (the technique is to contact the ball, so the ball and the shaft surface are in point contact state). The characteristic 'the axial load capacity between the nut 2 and the bearing outer ring 3 is matched with the axial load capacity between the screw 1 and the nut 2 to improve its life. , ', Ding Jin, the above-mentioned invention, the ability to withstand the load by the line contact is large = the characteristics of the point contact' can withstand the axial load between the outer ring of the bearing and the nut and the energy between the nut and the screw The ability to withstand axial loads matches each other' to achieve the expected load capacity of the ball screw and increase its life. Therefore, the invention of "there is an industry-friendly" should be unquestionable. In addition, the feature technology revealed in the embodiment of this case is not seen in the publications before the application and has not been publicly used. With the fact that the work of 200912162 is improved as described above, it 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. We will review and give patents as soon as possible. The disclosure of the above-described embodiments is intended to be illustrative of the invention, and is intended to be illustrative of the invention. Replacement, still should be 200912162 f simple description of the figure j The first figure is a schematic diagram of the conventional technology of the nut rotating ball screw. The second figure is a schematic view of the nut of the invention, wherein the bearing outer ring and the nut are rollers as the transmission medium. , Cheng Cheng 1 2 1 Lin invention snail _ transfer of the bead screw schematic diagram, its bearing outer ring and the job (four) is the material transmission medium. [Main component symbol description] (Prior art) 1 Screw 3 bearing outer ring 5 rolling member (invention) 1 screw 2 nut 2 2 second rolling groove 3 wheel bearing outer ring 4 second rolling member 6 reflow member 2 screw Cap 4 ball first rolling groove first rolling groove brother one rolling groove first rolling piece
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