201031841 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種具有注油裝置之螺帽旋轉式滾珠螺 桿，特別是指一種螺帽旋轉時，帶動注油裝置旋轉使潤滑、、由 脂藉由一重心低於對稱中心的配重環引導，經導引槽由终淹 孔注入螺桿表面之注油裝置。 【先前技術】 • 滾珠螺桿在運用上，常需要有潤滑來達到加長其使用 壽命。 現有加裝於螺帽的注油裝置，其主要構成特徵為：於螺 帽的兩端分別加裝有油箱’該油箱内可儲放潤滑油脂，並於 該油箱内設有一潤滑裝置接觸螺帽作潤滑；而其構成上之主 要缺點為：該油箱固定於螺帽上，螺帽旋轉時油箱亦跟著作 旋轉運動，無強制給油的狀態下，旋轉時所產生的離心力會 ❿使潤滑油脂貼附於内管壁上，而使潤滑效能大幅降低。 後有衍生出一種具有注油裝置之螺帽旋轉式滾珠螺桿， 其構成之特徵為：一内螺帽套設於一外螺帽中，於内螺帽一 端設有一由具螺旋槽之導引件與一油箱所組成之注油裝 置，該導引件設有一通孔連接於螺桿與螺帽之間，内螺帽旋 轉時該導引件同時跟著旋轉，因油箱與外螺帽連結，故不會 轉動，因而内螺帽旋轉時潤滑油脂會被旋轉時產生的離心力 201031841 甩至外層’潤滑油脂與不旋轉的油箱間有磨擦存在，因此不 會隨著導引件一起旋轉，導引件上的螺旋槽在旋轉中會將潤 滑油脂推至一端，潤滑油脂藉此產生壓力由通孔擠至螺桿與 螺帽間，達到潤滑功效；其構成上之主要缺點為：該油箱係 相對外螺帽尺寸構成，並固定於外螺帽上，容易受限於外螺 帽的尺寸，且若内螺帽與外螺帽之間的尺寸變動，則該導引 件及油箱亦需要重新再製作，因而有改良之必要。 φ 由此可見’上述習用物品仍有諸多缺失，實非一良善之 設計者，而亟待加以改良。 本案發明人鑑於上述習用具有注油裝置之螺帽旋轉式滾 珠螺桿所衍生的各項缺點，乃亟思加以改良創新，並經多年 苦心孤詣潛心研究後，終於成功研發完成本件具有注油裝置 之螺帽旋轉式滚珠螺桿。 【發明内容】 參 本發明之目的即在於提供一種具有注油裝置之螺帽旋轉 式滚珠螺桿，該注油裝置係連接於内螺帽上，使其不會因内 螺帽套設於外螺帽而限制其大小尺寸。 本發明之次一目的係在於提供一種具有注油裝置之螺帽 旋轉式滾珠螺桿，其組裝與更換較為容易，不受限於外螺帽 尺寸’因此能夠相對減少製造之成本。 可達成上述發明目的之具有注油裝置之螺帽旋轉式滾珠 螺桿’包括有： 4 201031841 一螺桿’表面係設有一螺旋狀的滾動溝； 一内螺帽，係具有一通孔供螺桿穿設，該通孔表面具有 相對該滾動溝之滾動槽； 一外螺帽，係套設於内螺帽上； 複數個滾動件，係容設於該滾動溝與滾動槽之間；以及 一注油裝置’係裝設於該内螺帽之端面，該注由裝置内 部設有一儲油空間，該儲油空間係為一環狀結構並設有一貫 Φ 穿孔及一連通該貫穿孔之給油孔’該貫穿孔係供該螺桿穿 叹，且該儲油空間設有一配重環，該配重環外型為不對稱， 且該配重環之外緣係與該儲油空間保持一間隙，又該配重環 一側設有一螺旋狀之半導引槽，該半導引槽係與該儲油空間 側壁面形成一導引槽，該導引槽係與該給油孔銜接。 【實施方式】 請參閱圖一，本發明所提供之具有注油裝置之螺帽旋轉 鲁式滚珠螺桿，主要包括有：一螺桿（1)、一内螺帽（21)、一 外螺帽（24)、複數個滾動件（4)以及一注油裝置（3)。 其中該螺桿（1)表面係設有螺旋狀的滾動溝（12);該内 螺帽（21)係具有一通孔（211)供螺捍（丨）穿設，於該通孔（211) 表面具有相對該滾動溝（12)的滚動槽（212);該外螺帽（24) 係套設於内螺帽（21)上，且該外螺帽（24)並固設於一被動件 (圖未示）上’於該内螺帽（21)與外螺帽（24)之間以複數個軸 承（23)相連接；該滾動件（4)係容設於該滾動溝（12)與滾動 5 201031841 槽（212)中，供内螺帽（21)於螺桿（1)上做螺旋位移；請配合 參閱圖五與圖六，該注油裝置（3)係連結於内螺帽（21)之一 端，主要為由一本體（32)及一外套筒（34)所組成，該本體（32) 係具有一穿伸進入外套筒（34)軸孔（342)的螺座（321)以及 一端蓋部（325)，使其間構成一儲油空間（31)以儲存油脂， 該螺座（321)更設有貫穿孔（322)供螺桿（1)通過，請再配合 參閱圖四，該配重環（33)為不對稱物體，於其一側設有一螺 φ 旋狀之半導引槽（323) ’其蓋合本體（32)之端蓋部（325)後形 成至少一開口朝上的導引槽（324)，該導引槽（324)末端開設 有一給油孔（326)連通該貫穿孔（322)，使油脂能順著螺旋前 進原理被推擠到給油孔（326);該配重環（33)其形狀為圓環 且不對稱狀的物體，且其重心低於相對於配重環（33)的對稱 中心’該本體（32)的螺座（321)上環設有一卡槽（327)，供一 限制環（35)卡設於其中，藉此限制配重環（33)軸向的位移， φ 該外套筒（34)與該配重環（33)間具有一間隙，於該外套筒 (34)軸向之端面則開設有一注油孔（341)。 本發明具有注油裝置之螺帽旋轉式滾珠螺桿〇)於作動 時，請配合參閲圓三與圖六，其中該注油裝置（3)於作動前 先由注油孔（341)將潤滑油脂注入儲油空間（31)内備用，該 内螺帽（21)相對於該注油裝置（3)之一端連接有一皮帶輪 (25)，且該皮帶輪（25)具有一穿孔（251)供螺桿（1)穿過，藉 由皮帶輪（25)帶動該内螺帽（21)於該外螺帽（24)中旋轉（此 201031841 時外螺帽（24)不旋轉），使内螺帽（21)於螺桿（1)上螺旋位 移’同時内螺帽（21)帶動該注油裝置（3)旋轉，此時儲油空 間（31)内之潤滑油脂因旋轉產生的離心力將甩至外套筒（34 ) 内璧周圍’而受到推擠的油脂由儲油空間（31)之側壁面（312 ) 與配重環（33)之間的導引槽（324)進入給油孔（326),該配重 環（33)因重心低於相對之對稱中心，故於該注油裝置（3)旋 轉時不會與其一起旋轉，或該配重環（33)轉速小於該注油裝 參 置（3 )，令其與潤滑油脂之間具有磨擦，讓潤滑油脂可間接 擠到配重環（33)外緣的周圍，其後藉注油裝置（3)旋轉再經 由配重環（33)的半導引槽（323)將其勾入導引槽（324)，進而 由給油孔（326)注入螺桿（1)表面達到潤滑的效果。 上述為本發明之第一可行實施方式’請參閱圖二與圖 七，本發明之第二可行實施方式在於，其所有部件與第一可 行實施方式皆相同，唯該配重環（33)上之半導引槽（323)係 • 設置於儲油空間（31)之側壁面（312)上；本實施方式之作動 模式與第一可行實施方式相同，於皮帶輪（25)帶動内螺帽 (21)作動，而使注油裝置（3) 一同旋轉，此時儲油空間（Μ) 内之潤滑油脂因旋轉產生的離心力將甩至外套筒（34)内璧 周圍，而受到推擠的油脂由儲油空間（31)之側壁面（312)與 配重環（33)之間的導引槽（324)進入給油孔（326)，該配重環 (33)因重心低於相對之對稱中心，故於該注油裝置（3)旋轉 時不會與其一起旋轉，或該配重環（33)轉速小於該注油裝置 201031841 (3) ’令其與潤滑油脂之間具有磨擦，讓潤滑油脂可間接擠 到配重環（3 3)外緣的周圍，其後再經由旋轉注油裝置（3)， 而由儲油空間（31)侧壁面（312)的半導引槽（323)將其勾入 導引槽（324) ’進而由給油孔（326)注入螺桿（1)表面達到潤 滑的效果。 前述第一可行實施方式及第二可行實施方式中，該内螺 帽（21)與外螺帽（24)之間設置的軸承（23)能夠以滾動件（4) φ 替代；而該半導引槽（323)可設置為複數個，使配重環（33) 蓋合於本體（32)之端蓋部（325)時，形成複數個導引槽 (324) ’而給油孔（326)亦相對導引槽（324)之數量開設，藉 此可增加潤滑油脂進入導引槽（324)的量，加強潤滑裝置（3) 對螺桿（1)之潤滑效果。 上列詳細說明係針對本發明之一可行實施例之具體說 明，惟該實施例並非用以限制本發明之專利範圍，凡未脫離 _ 本發明技藝精神所為之等效實施或變更，均應包含於本案之 專利範圍中》 綜上所述，本案不但在空間型態上確屬創新，並能較習 用物品增進上述多項功效，應已充分符合新穎性及進步性之 法定發明專利要件’爰依法提出中請，㈣貴局核准本件 發明專利申請案，以勵發明，至感德便。 【圖式簡單說明1 圖-為本發明具有注油裝置之螺帽旋轉式滾珠螺桿之第 201031841 一實施方式立體分解圖； 圖二為該具有注油裝置之螺帽旋轉式滚珠螺桿之第二實 施方式立體分解圖； 圖三為該具有注油裝置之螺帽旋轉式滾珠螺桿之立體組 合示意圖； 圖四為該具有注油裝置之螺帽旋轉式滾珠螺桿之第一實 施方式配重環立體示意圖； ❹ 圖五為該具有注油裝置之螺帽旋轉式滾珠螺桿之注油裝 置立體圖； 圖六為該具有注油裝置之螺帽旋轉式滾珠螺桿之組合剖 面示意圖；以及 圖七為該具有注油裝置之螺帽旋轉式滾珠螺桿之第二實 施方式本體立體示意圖。 【主要元件符號說明】 ❿ 1螺桿 12 滾動溝 21内螺帽 2 11 通孔 212 滾動槽 23 轴承 24 外螺帽 201031841 25 皮帶輪 251 穿孔 3 注油裝置 31 儲油空間 312 侧壁面 32 本體 321 螺座 參 322 貫穿孔 323 半導引槽 324 導引槽 325 端蓋部 326 給油孔 327 卡槽 33 配重環 ❿ 34 外套筒 341 注油孔 342 轴孔 35 限制環 4 滾動件201031841 VI. Description of the Invention: [Technical Field] The present invention relates to a nut-rotating ball screw having an oil filling device, and particularly to a case where a nut rotates to drive the oiling device to rotate, thereby lubricating A weighting ring with a center of gravity lower than the center of symmetry is guided, and an oiling device is injected into the surface of the screw through the guiding groove through the guiding groove. [Prior Art] • In the application of ball screws, lubrication is often required to lengthen their service life. The oil filling device installed in the nut is mainly characterized in that: a fuel tank is respectively installed on both ends of the nut. The lubricating oil can be stored in the oil tank, and a lubricating device is disposed in the oil tank to contact the nut. Lubrication; the main disadvantage of the composition is that the fuel tank is fixed on the nut, and the fuel tank rotates with the writing when the nut rotates. In the state without forced oil supply, the centrifugal force generated when rotating will cause the grease to adhere. On the inner tube wall, the lubrication performance is greatly reduced. A nut-rotating ball screw having an oil-filling device is formed, which is characterized in that an inner nut is sleeved in an outer nut, and a guide member with a spiral groove is arranged at one end of the inner nut. An oil filling device composed of a fuel tank, the guiding member is provided with a through hole connected between the screw and the nut, and the guiding member rotates at the same time when the inner nut rotates, because the oil tank and the outer nut are connected, so Rotating, so that the centrifugal force generated when the inner nut rotates when the grease is rotated, 201031841 甩 to the outer layer, there is friction between the lubricating grease and the non-rotating oil tank, so it does not rotate with the guide member, and the guide member The spiral groove pushes the lubricating grease to one end during the rotation, and the lubricating grease thereby generates pressure to be squeezed between the screw and the nut through the through hole to achieve the lubricating effect; the main disadvantage of the composition is that the oil tank is opposite to the outer nut size It is fixed to the outer nut and is easily limited by the size of the outer nut. If the size between the inner nut and the outer nut changes, the guide and the fuel tank need to be reworked. Improvement Necessary. φ This shows that there are still many missing items in the above-mentioned household items, which is not a good designer, but needs to be improved. In view of the above-mentioned shortcomings derived from the above-mentioned nut-rotating ball screw with oil-filling device, the inventor of the present invention has improved and innovated, and after years of painstaking research, finally successfully developed and finished the nut rotation of the oil-filling device. Ball screw. SUMMARY OF THE INVENTION The object of the present invention is to provide a nut rotary ball screw having an oil filling device, which is connected to the inner nut so that the inner nut is not sleeved on the outer nut. Limit its size. A second object of the present invention is to provide a nut rotary ball screw having an oil filling device which is easy to assemble and replace without being limited to the outer nut size, thereby enabling a relatively reduced manufacturing cost. A nut-rotating ball screw having an oil filling device capable of achieving the above object includes: 4 201031841 A screw 'surface is provided with a spiral rolling groove; and an inner nut has a through hole for screw threading. The through hole surface has a rolling groove opposite to the rolling groove; an outer nut is sleeved on the inner nut; a plurality of rolling members are accommodated between the rolling groove and the rolling groove; and an oil filling device Mounted on the end surface of the inner nut, the injection is provided with an oil storage space inside the device, the oil storage space is an annular structure and is provided with a constant Φ perforation and an oil supply hole communicating with the through hole Providing the screw for sighing, and the oil storage space is provided with a weight ring, the weight ring outer shape is asymmetrical, and the outer edge of the weight ring maintains a gap with the oil storage space, and the weight is A spiral semi-guide groove is formed on one side of the ring, and the semi-guide groove forms a guiding groove with the side wall surface of the oil storage space, and the guiding groove is engaged with the oil supply hole. [Embodiment] Referring to Figure 1, a nut-rotating Lulu ball screw with an oiling device provided by the present invention mainly comprises: a screw (1), an inner nut (21), and an outer nut (24). ), a plurality of rolling elements (4) and an oil filling device (3). The surface of the screw (1) is provided with a spiral rolling groove (12); the inner nut (21) has a through hole (211) for threading, and the surface of the through hole (211) a rolling groove (212) opposite to the rolling groove (12); the outer nut (24) is sleeved on the inner nut (21), and the outer nut (24) is fixed to a passive piece (not shown) on the inner nut (21) and the outer nut (24) is connected by a plurality of bearings (23); the rolling element (4) is accommodated in the rolling groove (12) With the rolling 5 201031841 groove (212), the inner nut (21) is helically displaced on the screw (1); please refer to Figure 5 and Figure 6, the oiling device (3) is connected to the inner nut (21) One end is mainly composed of a body (32) and an outer sleeve (34) having a screw seat (321) extending into the shaft hole (342) of the outer sleeve (34). And an end cover portion (325), such as an oil storage space (31) to store grease, the screw seat (321) is further provided with a through hole (322) for the screw (1) to pass, please refer to Figure 4 The weight ring (33) is an asymmetrical object, A semi-guiding groove (323) having a spiral φ shape is disposed on one side thereof, and the end cover portion (325) of the body (32) is closed to form at least one opening-facing guide groove (324). An oil supply hole (326) is connected to the through hole (322) at the end of the groove (324), so that the grease can be pushed to the oil supply hole (326) along the spiral advancement principle; the weight ring (33) is round in shape. a ring-shaped and asymmetrical object having a center of gravity lower than a center of symmetry with respect to the weight ring (33). The screw seat (321) of the body (32) is provided with a card slot (327) for a limiting ring ( 35) being clamped therein, thereby limiting the axial displacement of the weight ring (33), φ having a gap between the outer sleeve (34) and the weight ring (33), the outer sleeve (34) An oil injection hole (341) is formed in the axial end surface. The invention has a nut rotating ball screw 〇 of the oil filling device. When operating, please refer to the circle 3 and FIG. 6 , wherein the oil filling device (3) injects lubricating grease into the oil filling hole (341) before the operation. The oil space (31) is spared, and the inner nut (21) is connected with a pulley (25) at one end of the oiling device (3), and the pulley (25) has a through hole (251) for the screw (1) to wear. After that, the inner nut (21) is rotated by the pulley (25) in the outer nut (24) (the outer nut (24) does not rotate when the 201031841 is used), so that the inner nut (21) is screwed ( 1) The upper spiral displacement 'the inner nut (21) drives the oil filling device (3) to rotate, and the lubricating oil in the oil storage space (31) will be smashed into the outer sleeve (34) due to the centrifugal force generated by the rotation. The surrounding grease is pushed into the oil supply hole (326) by the guiding groove (324) between the side wall surface (312) of the oil storage space (31) and the weight ring (33), and the weight ring (33) ) because the center of gravity is lower than the relative symmetry center, the oiling device (3) does not rotate with it when rotating, or the weight ring (33) rotates The oil filling device is placed in the oil (3) so that it has friction with the lubricating grease, so that the lubricating grease can be indirectly squeezed around the outer edge of the weight ring (33), and then the oiling device (3) is rotated and then dispensed. The semi-guide groove (323) of the heavy ring (33) hooks it into the guide groove (324), and the oil supply hole (326) is injected into the surface of the screw (1) to achieve lubrication. The above is a first possible implementation manner of the present invention. Referring to FIG. 2 and FIG. 7 , the second feasible implementation manner of the present invention is that all the components are the same as the first feasible embodiment, only the weight ring (33) The semi-guide groove (323) is disposed on the side wall surface (312) of the oil storage space (31); the actuation mode of the embodiment is the same as that of the first feasible embodiment, and the inner nut is driven by the pulley (25) ( 21) Actuating, and the oil filling device (3) is rotated together, at this time, the lubricating oil in the oil storage space (Μ) will be pulled around the inner circumference of the outer sleeve (34) due to the centrifugal force generated by the rotation, and the grease is pushed. The oil guiding hole (326) is entered by the guiding groove (324) between the side wall surface (312) of the oil storage space (31) and the weight ring (33), and the weight ring (33) is lower than the relative symmetry due to the center of gravity Center, so the oiling device (3) will not rotate with it when it rotates, or the weight ring (33) rotates less than the oiling device 201031841 (3) 'make it friction with the grease, so that the grease can be Indirectly squeezed around the outer edge of the weight ring (3 3), followed by a rotary oil filling Place (3), and hook it into the guiding groove (324) by the semi-guide groove (323) of the side wall surface (312) of the oil storage space (31), and then inject the surface of the screw (1) from the oil supply hole (326). Achieve lubrication. In the foregoing first feasible embodiment and the second possible implementation, the bearing (23) disposed between the inner nut (21) and the outer nut (24) can be replaced by a rolling member (4) φ; and the semi-conductor The guiding groove (323) may be provided in plural, and when the weight ring (33) is covered on the end cover portion (325) of the body (32), a plurality of guiding grooves (324) are formed to be supplied to the oil hole (326). It is also opened relative to the number of guiding grooves (324), thereby increasing the amount of lubricating grease entering the guiding groove (324) and enhancing the lubricating effect of the lubricating device (3) on the screw (1). The detailed description above is a detailed description of one of the possible embodiments of the present invention, and is not intended to limit the scope of the present invention. In the scope of the patent in this case, in summary, the case is not only innovative in terms of space type, but also can enhance the above-mentioned multiple functions compared with the conventional articles, and should fully comply with the statutory invention patent requirements of novelty and progressiveness. In the process of proposing, (4) the approval of this invention patent application by your bureau, in order to invent invention, to the sense of virtue. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective exploded view of a nut rotating ball screw having an oil filling device according to an embodiment of the present invention; FIG. 2 is a second embodiment of the nut rotating ball screw having the oil filling device; 3 is a three-dimensional exploded view of the nut-rotating ball screw with the oil-filling device; FIG. 4 is a three-dimensional schematic view of the first embodiment of the nut-rotating ball screw with the oil-filling device; 5 is a perspective view of the oil-filling device of the nut-rotating ball screw having the oil-injecting device; FIG. 6 is a schematic sectional view of the nut-rotating ball screw having the oil-injecting device; and FIG. 7 is a nut-rotating type of the oil-filling device A perspective view of the second embodiment of the ball screw. [Main component symbol description] ❿ 1 screw 12 Rolling groove 21 inner nut 2 11 through hole 212 rolling groove 23 bearing 24 outer nut 201031841 25 pulley 251 perforation 3 oil filling device 31 oil storage space 312 side wall surface 32 body 321 screw seat 322 through hole 323 semi-guide groove 324 guide groove 325 end cover portion 326 oil supply hole 327 card slot 33 weight ring 外 34 outer sleeve 341 oil hole 342 shaft hole 35 limit ring 4 rolling parts