1359237 六、發明說明： 【發明所屬之技術領域】 本發明係專指在滚珠螺桿之螺帽上 電阻原理所設計之潤滑感測技術。f利用接觸 【先前技術】 ^如圖一所示，現今滾珠螺桿可在 錯存潤滑油之油箱⑹，使該潤滑 、月匕 中未示）盥螺帽另硬炉,Λ、 下马滾動兀件（圖 九、累巾目⑻及螺桿⑴之接觸介面1359237 VI. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention is directed to a lubrication sensing technique designed on the principle of electrical resistance on a nut of a ball screw. fUsing contact [prior art] ^ As shown in Figure 1, the current ball screw can be in the oil tank (6) with the wrong oil, so that the lubrication, not shown in the new moon, the nut is hard, and the rolling element is rolled. (Figure 9, contact interface (6) and screw (1) contact interface
摩擦、減少磨損、降溫冷卻、防止軸之運作需^J 然而不管該種或其它提供㈣油的設計； 瞭解滾珠螺桿在運作過程中，潤滑油膜是 動法 =隔?之潤滑效果。此外經-段時間的使用後： ^因溫以其他劣“導致潤滑失效，也無法即時 【發明内容】 —本發明係提供一種滚珠螺桿潤滑感_置，其主要内 谷^該滾珠轉之螺帽外接有兩電線，制電線係構成 ^導電迴路，使之能透過螺帽、滾動元件及螺桿而產生- =:2當滾動元件上的油膜消失時，導電迴路則能 \ U啟動—警不裝置’俾提醒須注人或更換潤 二由，藉此以確保潤滑油之持續供應以及品質，使滚珠螺 杯在運作中不會因潤滑不良而損壞。 3 1359237 本發明係提供—絲a 1 容乃在該滾珠螺桿之=桿潤滑感測裝置，其另-内 螺帽之間設有絕緣#、接有—苐二螺帽，並於該二 又另、.巴、.象層，該兩螺 匹配之螺紋溝，令螺紋槽 ^有^累桿螺紋槽相 螺帽另設有和該螺紋溝頭尾相接=成—負荷通道，該兩 道、負荷通道組成一可供Ά如通道，令迴流通 使該等滾動元件能作為二二70件安裝之封閉通道’ 兩電線係構成4電:：、:二螺帽外接有另-電線，該 導:迴路則此形成通路，用以啟動警示裝置，俾達到能自 動檢測滾珠螺桿之潤滑良莠與否。 【實施方式】 ^使貴審查委員能進—步瞭解本發明之結構，特徵 及其:目的’兹附以較佳實施例之圖式詳細說明如后： 閱圓一五，其係本發明運用於雙螺帽之實施 例’其至少包括有： 一具導電性之螺桿⑴，其外周具有螺紋槽⑴）； 兩具導電性之螺帽⑵⑶’其係串接成一體，並於該 二螺帽⑵⑶之間設有絕緣層，該絕緣層可為一縣片 ⑷，兩螺帽（2)(3)並同心的設有供螺桿⑴貫穿之内孔， 且各自於内孔中設有和螺紋槽⑴)相匹配之螺紋溝 4 1359237 ⑵）（31)，令螺紋槽⑴）、螺紋溝⑻⑶）形成—負荷通 道’兩螺帽⑵⑶另設有和該螺紋溝⑻⑻頭尾相接之 迴流通道（圖中未示），令迴流通道、負荷通道組成一封閉 通遏^外，兩螺帽⑵⑶在外周各設有—鎖孔（22)(32); 複數具導電性之滾動元件⑸，係安裝在螺桿⑴和兩 螺帽⑵⑶各自組合成的封閉通道内，其表面附著有油Friction, reduce wear, cool down and cool, prevent the operation of the shaft. However, regardless of the design of the oil or the other (4) oil, it is known that the lubrication process of the ball screw is dynamic. In addition, after the use of the period of time: ^ due to the temperature of the other "caused the failure of lubrication, can not be instant" [invention] - the present invention provides a ball screw lubrication _ set, its main inner valley ^ the ball turn snail There are two wires connected to the cap, and the wires are formed into a conductive circuit, which can be generated through the nut, the rolling element and the screw. - =: 2 When the oil film on the rolling element disappears, the conductive circuit can be activated. The device '俾 reminds the person to be refilled or to change the second, so as to ensure the continuous supply and quality of the lubricating oil, so that the ball screw cup will not be damaged due to poor lubrication during operation. 3 1359237 The present invention provides a wire a 1 capacity In the ball screw, the rod lubrication sensing device is provided with an insulation # between the other inner nuts, and a second nut, and the second and the other, the bar, the image layer, the two The threaded groove of the screw is matched, so that the screw groove of the threaded groove is provided with the threaded groove of the threaded groove and the end of the threaded groove; the load channel is formed, and the two channels and the load channel are formed as a channel. Let the return flow enable the rolling elements to be installed as two or two The closed channel's two wires constitute 4 electric::,: the second nut is externally connected with another wire, the guide: the circuit forms a passage for starting the warning device, so as to automatically detect the lubrication of the ball screw. [Embodiment] ^Environmental review committee can make a step-by-step understanding of the structure, features and objectives of the present invention, which are described in detail with reference to the drawings of the preferred embodiment as follows: The embodiment of the invention is applied to a double nut, which comprises at least: a conductive screw (1) having a threaded groove (1) on its outer circumference; and two conductive nuts (2) (3) 'seamed in series, and An insulating layer is disposed between the two nuts (2) and (3). The insulating layer may be a county piece (4), and the two nuts (2) (3) are concentrically provided with inner holes through which the screw (1) penetrates, and each is disposed in the inner hole. There is a thread groove 4 1359237 (2)) (31) matching the thread groove (1), so that the thread groove (1)) and the thread groove (8) (3) are formed - the load passage 'two nuts (2) (3) are additionally provided with the thread groove (8) (8) The return channel (not shown), the return channel, the load channel Outside the closure, the two nuts (2) (3) are respectively provided with a locking hole (22) (32) on the outer circumference; a plurality of conductive rolling elements (5) are mounted on the closed channel of the screw (1) and the two nuts (2) (3) respectively. Inside, the surface is attached with oil
膜，使之能作為該螺桿（1)及兩螺帽（2)(3)相對旋轉之介 質；以及 兩電線（6)(60)，該兩電線⑻⑽）於一端各設有接頭 (1)使電線（6)此以其接頭（61)而安裝於一螺帽（？）之 鎖孔（22)、另一電線（60)則以其接頭（61)而安裝於第二螺 帽（3)之鎖孔⑽’如圖五所示，兩電線⑻⑽）另端則連 接至一訊號擷取系統（7)，該訊號擷取系統（7)係由惠斯登 •電路⑼、電源⑽、訊號放大器（73)組成，以㈣兩= 線（6)(60)能透過兩螺帽（2)(3)、滚動元件及螺桿〇) 而構成一導電迴路，且令訊號擷取系統（7)得以偵測兩螺 帽（2)(3)、滾動元件（5)及螺桿（1)間之接觸電阻變化。 R. Holm, E. Holm, and J. B. P. Williamson, Electric Contacts-Theory and Application, 4th edition Springer Verlag GmbH, 2007 利用Holm的接觸電阻簡化公式： 5 2a 〃中P兩接觸工件間的電阻係數 p/.兩接觸工件間的油膜電阻係數 S:油膜厚度 α:圓形接觸點的半徑 方^式可知，當兩金屬介面間相互接觸時，油膜厚 ί徑電阻僅與兩接觸工件間的電一 滑、、由為值較小°#兩金屬介面被油膜隔離時，若潤 ^為她由時寧，因此接觸電阻值兄也極大。 在凌珠螺桿㈣轉運動過程中，滾動元件⑸被螺桿 帽⑵力㈣動、，潤滑油因此分別進人滾μ件⑸和兩螺 ；^m、螺紋;#(21)(31)、滾動元件⑸和螺桿⑴螺紋 )之間而有潤滑的效果。依據sWbeck的潤滑理論， /、' 負荷和/由膜黏度等的範圍内，油膜可將兩工件 表面完全隔離，稱此範圍為液動潤滑區，由於螺帽 ⑵⑶、滾動元件⑸以及螺桿⑴皆為導體，三者在沒有 心油中；|時之接觸電阻值最低，若以電阻值極高的潤滑 /由膜兀王卩者接觸介面時，其接觸電阻值會極高， 因此田;衰珠螺桿進行旋轉運動時’利用螺帽（2)(3)-滾動 元件（5)~螺桿⑴接觸電阻的動態變化情形，可得知潤滑 油膜在滾珠螺桿運動中的潤滑行為。 1359237 ’ 疋以，當滾動元件（5)轉動產生潤滑油膜，使得螺帽 ⑵⑶與滾動元件⑸、螺桿⑴與滾動it件⑸之間呈現 不導通的狀態，電阻值極大；若隨著使用時間的增加或潤 .^油品質劣化’油膜的厚度逐漸減小，電阻值隨之變小， •最後油膜破裂’便會形成導通狀態，因此本發明預設一門 檻值（電阻值），若電阻值低於此一服值時，訊號榻取系 統⑺則能將訊號傳至一警示裝置⑻，該警示裝置⑻係 包括有-控制器（81)及-警示器（82)，令該警示裝置⑻ 能達到能自動檢測滾珠螺桿之潤滑良莠與否，另一方面， 當滾珠螺桿停止時，滾動元件⑸油膜便會破裂，此時警 不4置（8)便可能產生誤判，因此，本發明控制器⑻）另 能擷取驅動螺桿⑴之馬達轉速訊號，當轉速低於某一值 時（如5RPM) ’控制器（81)則將警示裝置（8)斷路。 請參閱圖六〜人，其係本發明運用於單螺帽之實施 ’例，其至少包括有： 一具導電性之螺桿（1)，其外周具有螺紋槽（11); 一具導電性之螺帽（2) ’其設有供螺桿（1)貫穿之内 孔，且於内孔t設有和螺紋槽（11)相匹配之螺紋溝（21)， 令螺紋槽（11)、螺紋溝（21)形成一負荷通道，該螺帽⑵ 另設有和該螺紋溝（21)頭尾相接之迴流通道（圖中未 示）7迴流通道、負荷通道組成一封閉通道；另外，該 螺帽（2)在外周設有一鎖孔（22); 7 1359237 複數具導電性之滾動元件⑸，係安褒在螺桿⑴和螺 帽⑵組合成的封閉通道内，其表面附著有油膜，使之能 作為該螺桿（1)及螺帽（2)相對旋轉之介質； 一絕緣之载體（9 )，JL呈古 -p .u 〜其具有一可供螺桿（1)貫穿之中孔 (9〇)，並設有貫穿兩端之魚眼孔（91)，用以提供螺栓⑽ 穿掣的鎖結於螺帽⑵端面，該載體⑽另徑向貫設有一 連通中孔（90)之組裝孔（93);以及 兩電線⑻⑽），該兩電線⑻⑽）於一端各設有接頭 (61)，使-電線⑹能以其接頭（61)而安裝於一螺帽⑵之 鎖孔（22);另-電線⑽則以其接頭⑽而絲於載體⑻ 之組裝孔⑽’此組裝孔⑽另具有一可供接頭⑻）抵接 之彈簧⑽、一受彈簧⑽作用而壓制於螺桿⑴螺紋槽 ⑴)之鋼珠⑽’使另一電線⑽能透過彈簧⑽、_ ⑽而導通至螺桿⑴；藉此，令該兩電線⑹⑽）在供電 時能透過螺帽（2)、滾動元件⑸、螺桿⑴及載體⑻而產 生一接觸電阻，俾當滾動元件⑸上的油膜消失時，能啟 動第五圖所示之警示裝置⑻’俾達到能自動檢測滾珠螺 桿之潤滑良莠與否。 综上所述，是-技術理念上的高度發明，且整體結構 亦屬新穎’應符發明專利申請要件，纽法提出申請。°惟 以上所述者，僅為本發明之一較佳實施例而已，當不能以 之限疋本發明實施之範圍，即大凡依本發明申請專利範圍 8 1359237 . 所作之均等變化與修飾，皆應仍屬本發明涵蓋之範圍内。 【圖式簡單說明】 圖一：係傳統滾珠螺桿之結構示意圖。 . 圖二：係本發明之部份分解示意圖。 . 圖三：係本發明之立體組合示意圖。 圖四：係本發明之平面組合剖面示意圖。 圖五：係本發明之電路控制方塊示意圖。 φ 圖六：係本發明第二實施例之分解示意圖。 圖七：係本發明第二實施例之組合示意圖。 圖八：係本發明第二實施例之組合剖面示意圖。 【主要元件符號說明】 (1)螺桿 (11)螺紋槽 (2)(3)螺帽 (21)(31)螺紋溝 (22)(32)鎖孔 (4)預壓片 (5)滾動元件 (6)(60)電線 (61)接頭 (62)彈簧 (63)鋼珠 (7)訊號擷取系統 (71)惠斯登電路 (72)電源 (73)訊號放大器 (8)警示裝置 (81)控制器 (82)警示器 (A)螺桿 (B)螺帽 (C)油箱a membrane capable of acting as a medium for relatively rotating the screw (1) and the two nuts (2) (3); and two wires (6) (60) each having a joint at one end (1) The wire (6) is mounted to the lock hole (22) of a nut (?) with its joint (61), and the other wire (60) is attached to the second nut (3) with its joint (61). The lock hole (10)' is shown in Figure 5. The other ends of the two wires (8) (10) are connected to a signal capture system (7). The signal capture system (7) is a Wheatstone circuit (9), a power supply (10), The signal amplifier (73) is composed of (4) two = line (6) (60) capable of forming a conductive loop through the two nuts (2) (3), the rolling elements and the screw 〇), and the signal extraction system ( 7) It is possible to detect the change in contact resistance between the two nuts (2) (3), the rolling element (5) and the screw (1). R. Holm, E. Holm, and JBP Williamson, Electric Contacts-Theory and Application, 4th edition Springer Verlag GmbH, 2007 Using Holm's contact resistance to simplify the formula: 5 2a 〃P between the two contact workpieces resistivity p /. The oil film resistivity S between the contact workpieces: the thickness of the oil film α: the radius of the circular contact point, when the two metal interfaces are in contact with each other, the oil film thickness and the electric resistance are only slipped with the electric contact between the two contact workpieces, When the two metal interfaces are separated by the oil film, the contact resistance value is also extremely large. During the rotation of the Lingzhu screw (four), the rolling element (5) is moved by the screw cap (2), and the lubricating oil is thus rolled into the workpiece (5) and the two screws; ^m, thread; #(21)(31), rolling There is a lubricating effect between the component (5) and the screw (1) thread). According to sWbeck's lubrication theory, /, 'load and / by film viscosity, etc., the oil film can completely isolate the surface of the two workpieces, which is called the hydraulic lubrication zone, because the nut (2) (3), rolling element (5) and screw (1) are all For the conductor, the three are in the absence of heart oil; the contact resistance value is the lowest. If the resistance is extremely high, the contact resistance value will be extremely high, so the field will be degraded. When the bead screw is rotated, the lubrication behavior of the lubricating oil film in the ball screw motion can be known by the dynamic change of the contact resistance of the nut (2) (3) - rolling element (5) ~ screw (1). 1359237 ' 疋, when the rolling element (5) rotates to produce a lubricating oil film, so that the nut (2) (3) and the rolling element (5), the screw (1) and the rolling it (5) are in a non-conducting state, the resistance value is extremely large; Increase or run the oil quality deterioration 'the thickness of the oil film gradually decreases, the resistance value becomes smaller, and the last oil film rupture' will form a conduction state, so the present invention presets a threshold value (resistance value), if the resistance value Below this value, the signal couching system (7) can transmit the signal to a warning device (8). The warning device (8) includes a controller (81) and a warning device (82), so that the warning device (8) can It can automatically detect whether the ball screw is lubricated or not. On the other hand, when the ball screw stops, the rolling element (5) will rupture the oil film. At this time, the alarm may be misjudged. Therefore, the present invention controls The device (8) can also capture the motor speed signal of the drive screw (1). When the speed is lower than a certain value (such as 5RPM), the controller (81) will open the warning device (8). Please refer to FIG. 6 - person, which is an example of the application of the present invention to a single nut, which includes at least: a conductive screw (1) having a thread groove (11) on the outer circumference thereof; The nut (2) 'is provided with an inner hole through which the screw (1) penetrates, and a thread groove (21) matching the thread groove (11) is provided in the inner hole t, so that the thread groove (11) and the thread groove (21) forming a load passage, the nut (2) is further provided with a return passage (not shown) connected to the end of the thread groove (21), and a return passage and a load passage form a closed passage; The cap (2) is provided with a locking hole (22) on the outer circumference; 7 1359237 a plurality of conductive rolling elements (5) are mounted in a closed passage formed by the combination of the screw (1) and the nut (2), and an oil film is attached to the surface thereof. It can serve as a medium for relative rotation of the screw (1) and the nut (2); an insulating carrier (9), JL is ancient-p.u~ has a screw (1) through the middle hole (9) 〇), and there is a fisheye hole (91) penetrating through the two ends for providing a bolt (10) to be fastened to the end face of the nut (2), and the carrier (10) is further radially disposed An assembly hole (93) communicating with the middle hole (90); and two wires (8) (10)) each having a joint (61) at one end, the wire (6) being mounted on the joint (61) The keyhole (22) of the nut (2); the other wire (10) is wired to the assembly hole (10) of the carrier (8) by its joint (10). The assembly hole (10) further has a spring (10) for abutting the joint (8), and a spring. (10) The steel ball (10) which acts to press the screw (1) thread groove (1) enables another wire (10) to be conducted to the screw (1) through the springs (10), _ (10); thereby, the two wires (6) (10) can be transmitted through the nut when powered ( 2) The rolling element (5), the screw (1) and the carrier (8) generate a contact resistance. When the oil film on the rolling element (5) disappears, the warning device (8) shown in the fifth figure can be activated to automatically detect the lubrication of the ball screw. Good or not. In summary, it is a high-invention in the technical concept, and the overall structure is also novel. 'It should meet the requirements of the invention patent application, and Newfa filed the application. However, the above description is only a preferred embodiment of the present invention, and is not limited to the scope of the present invention, that is, the average variation and modification of the patent application scope 8 1359237. It should remain within the scope of the present invention. [Simple description of the diagram] Figure 1: Schematic diagram of the structure of a conventional ball screw. Figure 2 is a partial exploded view of the present invention. Figure 3 is a schematic view of the three-dimensional combination of the present invention. Figure 4 is a schematic cross-sectional view of a planar combination of the present invention. Figure 5 is a block diagram of the circuit control block of the present invention. φ Figure 6 is an exploded perspective view of a second embodiment of the present invention. Figure 7 is a schematic view showing the combination of the second embodiment of the present invention. Figure 8 is a schematic cross-sectional view showing a second embodiment of the present invention. [Main component symbol description] (1) Screw (11) Thread groove (2) (3) Nut (21) (31) Thread groove (22) (32) Lock hole (4) Pre-pressing piece (5) Rolling element (6) (60) Wire (61) Connector (62) Spring (63) Ball (7) Signal Acquisition System (71) Wheatstone Circuit (72) Power Supply (73) Signal Amplifier (8) Warning Device (81) Controller (82) warning device (A) screw (B) nut (C) fuel tank