M438560 五、新型說明： 【新型所屬之技術領域】 本新型是有關於一種線性滑軌，特別是指一種具有潤 滑系統之線性滑軌。 【先前技術】 習知一種自潤型線性滑軌，如US6,401，867號專利案、M438560 V. New description: [New technical field] The present invention relates to a linear slide rail, in particular to a linear slide rail with a lubrication system. [Prior Art] A self-lubricating linear slide is known, such as the US Patent No. 6,401,867.
US6，123,457號專利案’以及US6,257,766號專利案揭露為 例’都包含一軌條、一可滑動地跨設於該軌條且具有一注 油口的滑塊，及一設置於該滑塊内且能潤滑該軌條的潤滑 件。該潤滑件為羊毛氈（Wool Felt)所製成，而可以藉由 毛細現象將經由該注油口注入的潤滑油被該潤滑件吸收並 進一步潤滑該執條，達到增加滑動順暢度的目的，然而， 由於羊毛氈的機械強度較差，具有支撐性不佳的缺點。 習知另一種支撐性較佳的滾珠型自潤線性滑執如 US2005/0173195 號專利案、US2〇〇6/〇2〇4151 號專利案、 US2008/0080795號專利案及US6〇24,49〇號專利案都包 含一軌條、—可滑動地跨設於該軌條的滑塊、數由該執條 …亥'月塊共同界定且互不連通的封閉循環路徑，及數分別 可滾動地設置於該等德環路徑且將該滑塊支撐於該軌 滾動件’該滑塊包括-注油道、—本體，及二蓋設騎 體相反兩端面的端蓋，該等端蓋分別具有一連通該注心 與该等循環路徑的導油道杏 ^ 田該荨滾動件在该等循環路栌 中滾動而繞經過該箅迪笔。士 ^ 乂寺鳊盍時，可以藉由經該注油道注 流經該導油道並洁人命努 ^ μ 4循環路徑内的潤滑油而被潤滑， 3 精由4等康動件滾動到該轨條與該本體之間時進一步潤 滑該軌條’達到增加滑動順暢度的目# H由於該等 、牛月b在該等端盖處被潤滑，所以沾附在該等潤滑件 的潤/月油會隨著該等滾動件離開該等端蓋之後的滾動距 + k加L漸減彡’雖然相較於直接使用羊毛狹支樓的支 標性較佳’卻具有潤滑效果不佳的缺點。 【新型内容】 因此，本新型之目的，即在提供一種具有足夠支撐性 且可以提高潤滑效果的具有潤滑系統之線性滑軌。 於是，本新型具有潤滑系統之線性滑軌，包含一軌條 、一滑座、二端蓋及一潤滑系統。 忒軌條包括一沿一軸向延伸的本體，及數形成於該本 體外周面且沿該軸向延伸的滾動槽。 忒滑座包括一跨設於該軌條的滑塊，及分別貫穿該滑 塊的相反兩端面的數滾動溝、數迴流孔與一位於該滑塊與 s亥軌條之間的油道。每一滾動溝與相對應之滾動槽共同界 定出一支樓路徑。 該等端蓋分別蓋設於該滑塊的相反兩端面，各包括一 外蓋體、至少一貫穿該外蓋體且連通該油道的注油孔、數 連通該注油孔的導油槽、至少一可移除地阻斷其中一導油 槽的控油件，及數分別連通該等導油槽、該等支撐路徑與 該等迴流孔的迴流道。 每一迴流道與相對應之支撐路徑、相對應之迴流孔共 同界定出一適用於供數滾動件可滾動地安裝的循環路徑。 該潤滑系統包括一沿該軸仓Φβ — 次袖向穿伸於該滑座且兩端連接 於該等端蓋的導油件，及至小 f W .兹 主乂 —形成於該導油件並與該油 道及相對應之支撐路徑相連通的導油孔。 本新型之功效在於：藉由該潤滑系統之導油孔與該油 道及相Μ之支撐路徑相連接’當經由該注油孔注入的潤 滑油分別流人該等導油槽與該油料，流人該等導油槽的 潤滑油會分別流入該等迴流道’而流入該油道的潤滑油則 會經由該導油孔而流入相對應之支撐路徑，因此能夠同時 潤滑位於兩端的該等迴流道内以及位於中央的支撐路徑内 的該等滾動件，而具有提高潤滑效果的功效，再藉由該控 油件可移除地阻斷其中一導油槽，而能夠配合該線性滑2 的使用角度，調整經由該注油孔所注入的潤滑油的油路並 平均潤滑該等循環路徑，而具有提高潤滑效果的功效。 【實施方式】 有關本新型之前述及其他技術内容、特點與功效，在 以下配合參考圖式之一個較佳實施例的詳細說明中，將可 清楚的呈現。 參閱圖1、圖2與圖3，本新型具有潤滑系統之線性滑 軌之較佳貫施例包含一軌條1、一滑座2、二端蓋3、一潤 滑系統4及二撓性密封蓋5。 該軌條1包括一沿一轴向X延伸的本體丨丨，及數形成 於該本體11外周面且分別沿該軸向X延伸的滾動槽12。 配合參閱圖4，該滑座2包括一跨設於該執條1的滑塊 21 ’及分別貫穿該滑塊21的相反兩端面的數滾動溝22、數 =孔61與一位於該滑塊21與該軌條i之間的油道η。 滚動溝22與相對應之滾動槽12共同界定出一支樓路 >閱圖5、圖6與圖7,該等端蓋3分別蓋設於該滑塊 1的相反兩端面’各包括—外蓋體31、數貫穿該外蓋體η 且連通該油道71的注油孔72、數分別連通料注油孔72 的導油槽73、_可移除地阻斷其中_導油槽73的控油件 32(見圖3)、數分別連通該等導油槽73與該等支撐路徑 62及料迴錢61的迴流道63、_連接料蓋體η與該 導油件4的内蓋體33，及二f伸於該外蓋體31且鎖接於該 滑塊21的固定件34，可㈣解的是，本新型也可以僅設置 一個注油孔72。 在本實施財，料内蓋體33是則卡勾可脫離地卡 接於該等外蓋體31，該等固定件34為螺栓，每―端蓋3之 控=件32為套設於其中—固料34的〇型環，可以理解 的是4等控油件32也可以為其它形狀的彈性體。 每一迴流道63與相對應之支#路徑62、相對應之迴流 孔61共同界定出—適用於供數滚動件（圖未示）可滾動地 安裝的循環路徑6。 該等外蓋體3i分別具有數外半迴流道64及至少一連 通該外半迴流道64的儲油槽74，料内蓋體33分別且有 數内半迴流道65,該等外半迴流道64與相對應之内半迴流 道65共同界定出該等迴流道63。 參閱圖3、圖4與圖5，在本實施例中’該等滾動槽^ M438560 ==溝22、該等迴流孔61、該等支樓路徑心、該等 ^道63的數目分別為四個，該等外半迴流道64、該等内 +迴流道65的數目為八個’並形成四個循環路徑6 ,但可U.S. Patent No. 6,123, 457, the disclosure of which is incorporated herein by reference in its entirety in its entirety in its entirety, the disclosure of the disclosure of the disclosure of the disclosure of the entire disclosure of The lubrication of the rail can be lubricated inside. The lubricating member is made of Wool Felt, and the lubricating oil injected through the oil filling port can be absorbed by the lubricating member and further lubricated by the capillary phenomenon, thereby achieving the purpose of increasing sliding smoothness. Due to the poor mechanical strength of the wool felt, it has the disadvantage of poor support. Another well-supported ball-type self-lubricating linear slipper is known, for example, from US Patent Application Publication No. 2005/0173195, US Patent No. 2/6, No. 4,151, and US Patent No. 2008/0080,795, and US Pat. The patents all include a rail, a slider that slidably spans the rail, a closed loop path that is defined by the stem and is not connected to each other, and the number is scrollable Provided on the loop path and supporting the slider on the rail rolling member', the slider includes a - oil injection passage, a body, and an end cover of the opposite end faces of the two cover bodies, the end covers respectively having a connection Through the centering of the heart and the circulation path of the oil guiding apricot, the rolling element rolls in the circular path and passes around the dime pen. When the ^ 乂 乂 鳊盍 , , , , , , , , , , , , , , 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂 乂Further lubricating the rail between the rail and the body to achieve an increase in sliding smoothness. Since the cow b is lubricated at the end caps, the lubricant is adhered to the lubricating members. The lunar oil will gradually decrease as the rolling distance of the rolling elements leaves the end caps + k plus L. Although it has better bearing quality than the direct use of the wool narrow building, it has the disadvantage of poor lubrication. . [New content] Therefore, the object of the present invention is to provide a linear slide rail with a lubrication system that has sufficient support and can improve lubrication. Thus, the present invention has a linear slide rail of a lubrication system comprising a rail, a slide, a two-end cover and a lubrication system. The rail bar includes a body extending along an axial direction, and a plurality of rolling grooves formed on the outer peripheral surface of the body and extending in the axial direction. The stern slide includes a slider spanning the rail, and a plurality of rolling grooves, a plurality of return holes, and an oil passage between the slider and the s rail, respectively extending through opposite end faces of the slider. Each rolling groove and the corresponding rolling groove define a path of a building. The end caps are respectively disposed on opposite end faces of the slider, and each includes an outer cover body, at least one oil injection hole penetrating the outer cover body and communicating with the oil passage, and an oil guiding groove connecting the oil injection holes, at least one The oil control member of one of the oil guiding grooves is removably blocked, and the return flow paths respectively connecting the oil guiding grooves, the supporting paths and the return holes are respectively. Each return channel, in conjunction with a corresponding support path and a corresponding return aperture, defines a cyclic path suitable for the rollable mounting of the supply rolling elements. The lubrication system includes an oil guiding member extending along the sliding sleeve Φβ-sleeve to the sliding seat and having both ends connected to the end cover, and a small f W main body is formed on the oil guiding member An oil guiding hole communicating with the oil passage and the corresponding supporting path. The utility model has the advantages that: the oil guiding hole of the lubricating system is connected with the oil passage and the supporting path of the opposite oil passage. 'When the lubricating oil injected through the oil filling hole flows into the oil guiding tank and the oil material respectively, the flowing oil is flown. The lubricating oil of the oil guiding tanks respectively flows into the return passages, and the lubricating oil flowing into the oil passages flows into the corresponding supporting paths through the oil guiding holes, so that the returning passages at both ends can be simultaneously lubricated and The rolling elements located in the central supporting path have the effect of improving the lubricating effect, and the oil guiding member can removably block one of the oil guiding grooves, and can be matched with the use angle of the linear sliding 2, and the adjustment is via The oil passage of the lubricating oil injected into the oil filling hole lubricates the circulation paths on average, and has the effect of improving the lubricating effect. The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the preferred embodiments. Referring to Figures 1, 2 and 3, a preferred embodiment of the linear slide with a lubrication system comprises a rail 1, a slide 2, a two end cap 3, a lubrication system 4 and two flexible seals. Cover 5. The rail 1 includes a body bore extending in an axial direction X, and a plurality of rolling grooves 12 formed on the outer peripheral surface of the body 11 and extending in the axial direction X, respectively. Referring to FIG. 4, the slider 2 includes a slider 21' spanning the strip 1 and a plurality of rolling grooves 22, a plurality of holes 61 and a plurality of opposite end faces of the slider 21 respectively. 21 and the oil passage η between the rails i. The rolling groove 22 and the corresponding rolling groove 12 jointly define a road surface. Referring to FIG. 5, FIG. 6 and FIG. 7, the end covers 3 are respectively disposed on opposite end faces of the slider 1 respectively. An outer cover body 31, a plurality of oil-filling holes 72 penetrating the outer cover body η and communicating with the oil passage 71, and a plurality of oil guiding grooves 73 respectively communicating with the oil-filling holes 72, _ removably blocking the oil control of the oil guiding groove 73 a member 32 (see FIG. 3), a plurality of return passages 63 connecting the oil guiding grooves 73 and the supporting paths 62 and the returning money 61, a connecting material cover body η and an inner cover body 33 of the oil guiding member 4, And the fixing member 34 extending from the outer cover 31 and locked to the slider 21 can be (4) solved, and the present invention can also be provided with only one oil filling hole 72. In the present embodiment, the inner lid body 33 is detachably engaged with the outer lid body 31, and the fixing members 34 are bolts, and the control member 32 of each of the end caps 3 is sleeved therein. - The 〇-shaped ring of the solid material 34, it can be understood that the fourth oil control member 32 can also be an elastomer of other shapes. Each of the return passages 63 is associated with a corresponding branch path 62, a corresponding return orifice 61, for a recirculating path 6 for rolling the number of rolling elements (not shown). The outer cover bodies 3i respectively have a plurality of outer half return passages 64 and at least one oil storage tank 74 communicating with the outer half return passages 64. The inner cover bodies 33 respectively have a plurality of inner half return passages 65, and the outer half return passages 64. These return passages 63 are defined together with the corresponding inner half return passage 65. Referring to FIG. 3, FIG. 4 and FIG. 5, in the present embodiment, the number of the rolling grooves ^ M438560 == groove 22, the return holes 61, the path of the branches, and the number of the channels 63 are respectively four. The number of the outer semi-return passages 64, the inner + return passages 65 is eight' and forms four circulation paths 6, but
以理解的是’也可以僅設置—個滾_ 12、一個滾動溝U 、：個迴流孔61、-個支樓路徑62、-個迴流道63、二個 卜半64' _個内半迴流道65 ’並形成單—個循環路 徑6。 參閱圖4與圖7，該滴滑系統4包括二沿該軸向χ穿伸 於該滑座2且兩端連接於該等端蓋3的導油件4〇,及六分 別形成於該等導油件4〇並與該油道71及相對應之支樓路 徑62相連通的導油孔4卜在本實施例中，每—導油件 與位於該導油件4〇相反兩端之該等内蓋體Μ是採一體成 型-玄具有潤滑系統之線性滑執還包含一個設置於該油道 71並穿伸外露於該等導油孔41的含油件8，可以理解的是 ，本實施例也可以只設置一個導油件4〇與一個導油孔41。 參閱圖5與圖8，該等密封蓋5分別蓋設於該等端蓋3 相反於該滑座2之一側且封閉該油道71，並各包括一第一 卡接部51，該等端蓋3分別還包括一供其中一第一卡接部 51可脫綠地卡接的第二卡接部3 5，在本實施例中，該等第 一卡接部51分別為嵌塊，該等第二卡接部35分別為供該 等嵌塊51可脫離地卡接的嵌孔。 參閱圖3、圖4與圖5，當該具有潤滑系統之線性滑軌 在平放使用並經由位於中央的該注油孔72注入潤滑油時， 可以不设置該控油件32，此時，經由該注油孔72注入的潤 7 月為會平均流人該等導油槽73以及該油道7卜再經由該等 導油槽73分別流入該等迴流道63，流入該等迴流道63内 的凋滑油可以潤滑位於該等迴流道63内的滾動件（圖未示 )而多餘的润滑油能被暫時存至該等儲油槽74以達到控 制’由置並延長潤滑時間的效果，同時，流入該油道71内的 *月油則會被該含油件8吸收並經由穿伸外露於該等導 由孔41的含油件8來潤滑位於該等支撐路徑02内的滾動 件（圖未示）。 參閱圖3 ’當該具有潤滑系統之線性滑軌在平放使用且 由其中一側的該注油孔72注入潤滑油時（如圖3中箭頭所 曰）潤滑油會先往較近的地方流動，導致較遠側的潤滑油 里偏/此時，可以將該控油件32套設於靠近所選擇之注 油孔72的固定件34 ,避免經由側邊之注油孔72所流入的 潤滑油因為壓力差而全數流入同一侧的迴流道〇，用以調 整油路而能平均潤滑該等循環路徑6。 參閱圖9,當該具有潤滑系統之線性滑執在斜擺一角度 0而呈非平放使用時（例如0為9〇度直立或45度傾斜設 圖9中"玄角度0為90度），經由位於該等注油孔72注 入的潤'月油會因為重力的關係而往下方的循環路徑6流動 此時，可以將該控油件32套設於下方之固定件，避免 潤仴油因為重力作用而全數流入位於下方的迴流道〇，用 以調整油路而能平均潤滑該等猶環路徑6，可以理解的是， 本新型也可以配合不同的使用需求而設置數個控油件… 通過上述結構組成，可以將本新型的優點與功效歸納 M438560 如下： 一、本新型除了可以利用該等滾動件（圖未示）而增 加支撐性之外，還藉由該潤滑系統4之導油孔41與該油道 71及該支撐路徑62相連接，使得經由該注油孔72注入的 潤滑油能夠同時潤滑位於兩端的該等迴流道63内以及位於 中央的該支撐路徑62内的滾動件（圖未示），而具有提高 濁滑效果的功效。It is understood that 'only one set_roll_12, one rolling groove U, one return hole 61, one branch path 62, one return channel 63, two half-semi-64'_ inner half-reflow Lane 65' and form a single loop path 6. Referring to FIG. 4 and FIG. 7 , the drip system 4 includes two oil guiding members 4 χ extending in the axial direction of the sliding seat 2 and connected to the end covers 3 at both ends, and six are respectively formed on the same. The oil guiding member 4〇 and the oil guiding hole 4 communicating with the oil passage 71 and the corresponding branch path 62 are in the embodiment, each of the oil guiding member and the opposite end of the oil guiding member 4〇 The inner cover body is integrally formed. The linear slide of the lubrication system includes a oil-containing member 8 disposed on the oil passage 71 and extending through the oil-conducting holes 41. It is understood that The embodiment may also be provided with only one oil guiding member 4〇 and one oil guiding hole 41. Referring to FIG. 5 and FIG. 8 , the sealing covers 5 are respectively disposed on one side of the end cover 3 opposite to the sliding seat 2 and close the oil passage 71 , and each includes a first engaging portion 51 . The end caps 3 respectively include a second latching portion 35 for the detachable greening of the first latching portion 51. In the embodiment, the first latching portions 51 are respectively embedded blocks. The second engaging portions 35 are respectively inserted holes for detachably engaging the inserts 51. Referring to FIG. 3, FIG. 4 and FIG. 5, when the linear slide rail with the lubrication system is used in a flat position and the lubricating oil is injected through the oil injection hole 72 located at the center, the oil control member 32 may not be disposed. The oil injecting hole 72 is filled with the lubricating oil in the same manner as the oil guiding groove 73, and the oil passage 7 flows into the return passage 63 through the oil guiding grooves 73, and flows into the returning flow passage 63. The rolling elements (not shown) located in the return passages 63 can be lubricated and excess lubricating oil can be temporarily stored in the oil storage tanks 74 to achieve the effect of controlling and extending the lubrication time while flowing into the oil. The moon oil in the passage 71 is absorbed by the oil-containing member 8 and lubricates the rolling members (not shown) located in the support paths 02 via the oil-containing members 8 that are exposed to the guide holes 41. Referring to Figure 3, when the linear slide rail with the lubrication system is used in a flat position and the lubricating oil is injected from one of the oil holes 72 on one side (as indicated by the arrow in Fig. 3), the lubricating oil will flow closer to the first place. , causing the oil in the far side to be biased/at this time, the oil control member 32 can be sleeved on the fixing member 34 close to the selected oil filling hole 72, so as to avoid the oil flowing in through the oil filling hole 72 on the side due to the pressure. Poorly flowing all the way back to the same side of the return channel to adjust the oil path to evenly lubricate the circulation paths 6. Referring to FIG. 9, when the linear slipper with the lubrication system is used for non-flat use at an angle of 0, (for example, 0 is 9 degrees erect or 45 degrees is inclined, and FIG. 9 is " Xuan angle 0 is 90 degrees. The oil flowing through the oil-filling holes 72 will flow to the lower circulation path 6 due to gravity. At this time, the oil control member 32 can be sleeved on the lower fixing member to avoid the lubricating oil. Gravity acts and flows all the way into the return channel below, which can be used to adjust the oil path to evenly lubricate the U.S. loop path 6. It can be understood that the present invention can also be equipped with several oil control parts according to different usage requirements... The above structural composition can summarize the advantages and effects of the present invention by M438560 as follows: 1. In addition to the supportability of the rolling elements (not shown), the present invention also utilizes the oil guiding holes of the lubricating system 4. 41 is coupled to the oil passage 71 and the support path 62 such that the lubricating oil injected through the oil injection hole 72 can simultaneously lubricate the rolling members located in the return passages 63 at both ends and in the central support path 62 ( Not shown), having improved efficacy cloud slip effect.
一、 藉由该控油件32可移除地阻斷其中一導油槽73 , 使得本新型能夠配合不同的使用擺放角度，而調整經由該 主’由孔72所注人的潤滑油的油路’並平均满滑該等循環路 徑6，因此具有提高潤滑效果的功效。 二、 错由該等儲油槽74 ’能將該等迴流道63内多餘的 們'月油暫時儲存’而具有能控制油量並延長潤滑時間的優 π〜丹祁対應之内蓋體33是採一 體成型、該等内蓋體U 士丨田上、1. Removably blocking one of the oil guiding grooves 73 by the oil control member 32, so that the present invention can adjust the oil passage of the lubricating oil injected through the main hole 72 by matching the different use angles. 'And the average circulation of these cyclic paths 6 is therefore sufficient to improve the lubrication effect. Second, the fault is that the oil storage tank 74' can temporarily store the excess 'month oil in the return passage 63' and has an inner cover 33 which can control the oil quantity and prolong the lubrication time. It is made in one piece, and the inner cover is U.
利用卡勾可脫離地卡接於該等外蓋 體31 ’以及該等密封蓋 ^ 了盍5之苐一卡接部51可脫離地卡接於 该等封蓋3之第- 2 、 卡接°卩35 ’不僅可以減少螺栓的使用， 還此同時增加相互的 本的功效。 Μ免組合誤差，*具有降低成 兩端本新型利用該潤滑系…同時潤滑位於 Γ調動件（射示），再利用料控油件 戈果=並千均潤滑該等循環路徑6，而騎提高潤滑 效果的功效，故確實能達成本新型之目的。 9 M438560 惟以上所述者，僅為本新型之較佳實施例而已，當不 能以此限定本新型實施之範圍，即大凡依本新型申請專利 範圍及新型說明内容所作之簡單的等效變化與修飾，皆仍 屬本新型專利涵蓋之範圍内。 【圖式簡單說明】 圖1是本新型具有湖滑系統之線性滑軌之較佳實施例 的―立體分解圖： 圖 圖 圖 圖 圖 圖 體圖； 2是該較佳實施例的一組合正視圖； 3是沿圖2中線ΠΙ-ΙΙΙ的一剖視圖； 4是沿圖2中線IV-IV的一剖視圖； 5是沿圖2中線V-V的一剖視圖； 6是該較佳實施例的其中一外蓋體的一立體圖； 7是該較佳實施例的一潤滑系統與二内蓋體的一立 的一 圖8是該較佳實施例的另一外蓋體與相對應之密封蓋 立體分解圖；及 圖9是該較佳實施例的一使用示意圖。 10 M438560 【主要元件符號說明】 1 ..........軌條 11 .........本體 12 .........滾動槽 2 ..........滑座 21 .........滑塊 22 .........滾動溝 3 ..........端蓋 31 .........外蓋體 32 .........控油件 33 .........内蓋體 34 .........固定件 35 .........第二卡接部 4 ..........潤滑系統 40 .........導油件 41 .........導油孔 5 ..........密封蓋 51.........第一卡接部 6 ..........循環路徑 61 .........迴流孔 62 .........支撐路徑 63 .........迴流道 64 .........外半迴流道 65 .........内半迴流道 71 .........油道 72 .........注油孔 73 .........導油槽 74 .........儲油槽 8 ..........含油件 X..........轴向 Θ .........角度 11The latching member 51 can be detachably engaged with the outer cover body 31' and the sealing cover 苐5, and the latching portion 51 can be detachably engaged with the second cover of the cover 3 °卩35' not only reduces the use of bolts, but also increases the effectiveness of each other. Forgive the combined error, * has reduced the two ends of the new use of the lubrication system ... at the same time the lubrication is located in the Γ transfer (exhibition), and then use the material control oil parts Goguo = and thousands of lubrication of the cycle path 6, while riding improved The effect of the lubrication effect, so it can achieve the purpose of this new type. 9 M438560 However, the above is only the preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereto, that is, the simple equivalent change made by the novel patent application scope and the new description content is Modifications are still within the scope of this new patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective exploded view of a preferred embodiment of a linear slide rail of the present invention having a lake slide system: FIG. 2 is a perspective view of the preferred embodiment; Figure 3 is a cross-sectional view taken along line ΠΙ-ΙΙΙ in Figure 2; 4 is a cross-sectional view taken along line IV-IV of Figure 2; 5 is a cross-sectional view taken along line VV of Figure 2; 6 is the preferred embodiment A perspective view of one of the outer covers; 7 is a vertical portion of the lubricating system of the preferred embodiment and the inner cover body. FIG. 8 is another outer cover of the preferred embodiment and a corresponding sealing cover. An exploded view; and Figure 9 is a schematic view of the use of the preferred embodiment. 10 M438560 [Description of main component symbols] 1 .......... Rails 11 ......... Body 12 ......... Rolling groove 2 ..... .....slide 21 .........slider 22 ......... rolling groove 3 .......... end cap 31 ..... .... outer cover body 32 ......... oil control member 33 ... ... inner cover body 34 ... ... fixing member 35 ..... ....Second snap joint 4 .......... Lubrication system 40 ... ... oil guide 41 ... ... oil guide hole 5 . .........seal cover 51.........first snap joint 6 .....recirculation path 61 ....reflow Hole 62 ... ... support path 63 ... ... return flow 64 ... ... outer half return flow 65 ... ... Half return flow path 71 ......... oil passage 72 ......... oil injection hole 73 ......... oil guide groove 74 ... ... storage Oil tank 8 .......... oil-containing parts X.......... axial Θ ......... angle 11