201042181 六、發明說明： 【發明所屬之技術領域】 本發明係與旋轉機械的平衡技術有關，特別是指一種 轉動機械的渦電流致動平衡裝置。 【先前技術】 Ο 〇 在追求高效率的產業趨勢下，各種旋轉機械的轉速曰 盈長:尚，轉動軸的質量不平衡(massunbaiance)對於產業機 械設備所造成的加工精度劣化、零件壽命減少與機台安全 性等問題已成為產業設備高速化下的一個重要議題。 舉例而言’工具機的工件轉動秘與切削刀具主軸的轉 速曰益提高且加工精度要求也日趨嚴格，因此轉動轴的動 平衡技術也日益受到重視。動平衡技術又分為被動式以及 動式動平衡裝置中最常見的形式為滾珠型 動式動平繼中最常見的則為流體式 衡裝置、轉動杨平衡環等裝置。 不的滾珠動平衡裝置，雖然原理與構造簡單，且 主動式動平《置例如_的動平衡。而 裝 達預定的角度以達到平的致動&來驅動配重物到 要隨著工作條件改變的’其優點Μ以適用於需 的加工主轴或汽車的^專匕^的應用場合，例如工具機 壯置而言，其主要是以=動勒。以流體式的主動動平衡 局部加熱原理讓流體流動到預定的 3 201042181 角度區位，進而達到重新調整 動平衡具有反應速度較慢和梦片 又的目的’流體式 高的高速錄上應財很A 精密程度 號專利所發展出的電:轉美：: 環，則屬於較成熟的主動式動 ==雜的精密機械轴承與陣列^^ 多以外掛的形《在轉叫在轉動料内部，大 另外，如第六圖至筮士__ $七圖所不，渦電流致動的原理， 疋將位於一旋轉軸91上的一旋棘 QQ pa ^ ^ ,, 奴轉盤(或蜋)93置於電磁鐵 99間的氣隙，該旋轉盤93是以摩擦力固定在旋轉軸91 上，因此在未施加渦電流致動力時，該旋轉盤％隨著旋轉 轴91作同步轉動；但是，如果對該旋轉中的旋轉盤93轉 動施加-個垂直於盤面的磁場分量，則磁場會在旋轉盤上 產生-個感應涡電流’則此感應渦電流與垂直磁場的外積 曰在旋轉盤93上產生相反於轉動方向的一個切線方向的 致動力’且若此切線方向致動力足以克服旋轉軸91與旋轉 盤(或環)93之間的摩擦力，則可使轉動中的轉軸91與旋轉 盤妁產生相對的角度運動，亦即轉軸91與旋轉盤的的轉 動不再是同步轉動。 藉由以上的渦電流角度致動原理，如果對該電磁鐵99施以 脈衝電流進而產生脈衝磁力施加在旋轉中的旋轉盤93 上’則可在旋轉盤93的表面產生脈衝式的渦電流致動力， 當此脈衝渦電流致動力足以克服旋轉軸91與旋轉盤（或 201042181 環)93之間的摩擦力，將使該旋轉盤93產生一個相對於該 旋轉軸91的小角度位移，因此藉由控制脈衝電流的脈衝數 即可調整該旋轉盤93相對於其旋轉軸91的任意角度位 移。第七圖所示的虛線圓圈所示為渦電流的狀態，箭頭方 向即為其電流流動方向。脈衝渦電流致動的優點在於，可 • 不而接觸旋轉盤93即可致動其產生相對於旋轉軸91的一 個小角度位移，且相對於美國第us 5,757,662號專利而 ❹ 言，脈衝渦電流致動具有構造簡單且體積較小的優點。 【發明内容】 ^發明之主要目的在於提供一種轉動機械的渦電流致 人平衝裝置’其具有構造簡單與較小黯的優勢，可以整 合在機台的轉動主軸上，比較不受到空間的限制。 械的成前述目的，依據本發明所提供之—種轉動機 ❹ 一轉動=致動平衡裝置’包含有·—套筒，用以套接於 ，動機械的旋轉轴’該套筒的—端具有—定位承靠面； 配平衡環，套於該套筒上’各該平衡環的邊緣具有一 之^ :?塾圈’套於該套筒上，且位於該二平衡環 ，彈性核，套於該套筒上；一銼定卷 套筒的另-端，·各該平衡環 、&，連接於該 器，各該脈衝磁有 脈衝磁場產生 J %產生器用以產生脈衝磁場分別作用於么 各^平生的脈衝磁場至少具有垂直分量作用於 以蝴其中，該二平衡環、該緩衝塾圈、 係被央持於該鎖定套環與該定位承靠面之 5 201042181 間 環間 座藉由該彈性環所產生的逼緊顏力在套筒與平衡 衝力。此外’該等平衡環在轉動時，利用該脈 讀生器所產生的脈衝磁場來作用於轉動中的—該平 衣的環面上而產生感應渦電流，感應渦 =外積會在該平衡環上造成-相反於旋“轉動^向的 惟力，利用此方式來致動旋轉中的該平衡環產生一角度位 移，並藉由控制該脈衝磁場的脈衝數量來達到控制該=衡 環轉動角度的效果。 / ' 【實施方式】 為了詳細說明本發明之構造及特點所在，兹舉以下之 較佳實施例並配合圖式說明如后，其中： 如第-圖至第二圖所示，本發明—較佳實施例所提供 之一種轉動機械的渦電流致動平衡裴置10，主要由一套筒 U、二平衡環2卜三緩衝塾圈31、—彈性環32、-鎖i 套環41、以及二脈衝磁場產生器51所組成，其中： 該套筒1卜用以套接於-轉動機械的旋轉轴91，該套 筒U的-端具有-定位承靠面12 ’該套筒u表面沿其長 車由向設有至少一凹槽14。 該二平衡環2卜係金屬材質，套於該套筒^上，& 該平衡環21的邊緣具有一配重塊22。 該等缓衝势圈3卜套於該套筒^上。_第一_ 3!與該二平衡環21之間係分別具有—該緩衝_ 31，該 定位承靠面12與相鄰的-該平衡環21之間也具有一該緩 201042181 衝整圈31 ’且該較套環41與婦的1平衡環21之門 =:衝=圈31。各該緩衝墊圈31内環面具有至: ·. 4,邊專緩衝墊圈3Η系套接於該 =入於該套筒u之凹槽14 且;= 同專於青銅材質的軟性金屬，可以降低 ‘ 2 生角度位移的磨耗。此外，位於該：平衡環^^在產 緩衝墊圈31還可用來隔開該二平衡環21，藉：:: Ο201042181 VI. Description of the Invention: [Technical Field] The present invention relates to a balancing technique of a rotating machine, and more particularly to an eddy current actuating balancing device for a rotating machine. [Prior Art] Ο 〇 In the pursuit of high-efficiency industry trends, the rotational speed of various rotating machinery is long: still, the mass imbalance of the rotating shaft (massunbaiance) deteriorates the machining accuracy caused by industrial machinery and equipment, and reduces the life of parts. Problems such as machine safety have become an important issue under the speed of industrial equipment. For example, the workpiece rotation of the machine tool and the rotational speed of the cutting tool spindle are improved, and the machining accuracy requirements are becoming stricter. Therefore, the dynamic balance technology of the rotating shaft is also receiving more and more attention. Dynamic balancing technology is divided into passive and dynamic balancing devices. The most common form of ball-type dynamic balancing is the most common ones for fluid balancing devices and rotating balance rings. No ball balancing device, although the principle and structure are simple, and the active leveling "sets the dynamic balance of, for example. And the application of the predetermined angle to achieve a flat actuation & to drive the counterweight to the application of the processing spindle or the car to be used as needed, for example In terms of machine tool expansion, it is mainly driven by =. The fluid-based active dynamic balance local heating principle allows the fluid to flow to the predetermined 3 201042181 angular position, thereby achieving the re-adjustment of the dynamic balance. The reaction speed is slower and the dream film is the same. The fluid-high high-speed recording is very good. The electric power developed by the precision degree patent: the beauty of the ring:: the ring is a more mature active type of motion == miscellaneous precision mechanical bearings and arrays ^^ more than the shape of the external "in the rotation of the inside of the rotating material, large In addition, as shown in the sixth figure to the gentleman __ $7, the principle of eddy current actuation, 疋 will be located on a rotating shaft 91 of a spine QQ pa ^ ^,, slave turntable (or 螂) 93 In the air gap between the electromagnets 99, the rotating disc 93 is fixed to the rotating shaft 91 by friction, so that when the eddy current is not applied, the rotating disc % rotates synchronously with the rotating shaft 91; however, if When a rotating magnetic field component perpendicular to the disk surface is applied to the rotating rotating disk 93, the magnetic field generates an induced eddy current on the rotating disk, and the external yoke of the induced eddy current and the vertical magnetic field is generated on the rotating disk 93. Opposite to the direction of rotation The direction of the actuation force 'and if the tangential direction actuation force is sufficient to overcome the friction between the rotating shaft 91 and the rotating disc (or ring) 93, the rotating shaft 91 in rotation can be caused to move at a relative angle with the rotating disc. That is, the rotation of the rotating shaft 91 and the rotating disk is no longer synchronous. By the above eddy current angle actuation principle, if a pulse current is applied to the electromagnet 99 to generate a pulse magnetic force applied to the rotating rotating disk 93, a pulsed eddy current can be generated on the surface of the rotating disk 93. Power, when the pulse eddy current actuation force is sufficient to overcome the friction between the rotating shaft 91 and the rotating disk (or 201042181 ring) 93, the rotating disk 93 will be caused to generate a small angular displacement relative to the rotating shaft 91, thus The arbitrary angular displacement of the rotary disk 93 with respect to its rotational axis 91 can be adjusted by controlling the number of pulses of the pulse current. The dotted circle shown in the seventh figure shows the state of the eddy current, and the direction of the arrow is the direction of current flow. The advantage of pulsed eddy current actuation is that it can be actuated to produce a small angular displacement relative to the axis of rotation 91 without contacting the rotating disk 93, and is pulsating eddy currents in relation to the U.S. Patent No. 5,757,662. Actuation has the advantage of being simple in construction and small in size. SUMMARY OF THE INVENTION The main object of the invention is to provide an eddy current-induced flatning device for a rotating machine, which has the advantages of simple structure and small flaw, and can be integrated on the rotating main shaft of the machine, and is relatively free from space constraints. . For the foregoing purposes, in accordance with the present invention, a rotating machine ❹ a rotation = actuating balancing device 'includes a sleeve for sleeved on a mechanically rotating shaft 'the end of the sleeve Having a positioning bearing surface; a balance ring, sleeved on the sleeve, each edge of the balance ring has a ^:? ring" sleeve on the sleeve, and located in the two balance ring, elastic core, Nested on the sleeve; a further end of the fixed sleeve, each of the balance ring, & is connected to the device, each of the pulsed magnetic pulsed magnetic field generates a J% generator for generating a pulsed magnetic field respectively The pulsed magnetic field of each of the plurality has a vertical component acting on the butterfly, and the two balance ring, the buffer ring, and the buffer ring are held between the locking collar and the positioning bearing surface. The tension force generated by the elastic ring is in the sleeve and the balance force. In addition, when the balance ring rotates, the pulsed magnetic field generated by the pulse reader acts on the toroidal surface of the rotation to generate an induced eddy current, and the induced vortex = the outer product will be in the balance ring. On the opposite side, the opposite force of the rotation "rotation", in this way to actuate the balance ring in rotation to generate an angular displacement, and by controlling the number of pulses of the pulse magnetic field to achieve control of the angle of rotation of the ring [Embodiment] In order to explain the structure and features of the present invention in detail, the following preferred embodiments are described with reference to the accompanying drawings, wherein: FIG. The eddy current actuating balance 10 of a rotating machine provided by the preferred embodiment is mainly composed of a sleeve U, a balance ring 2, a buffering ring 31, an elastic ring 32, and a lock i collar. 41. The two-pulse magnetic field generator 51 is composed of: the sleeve 1 is sleeved on a rotating shaft 91 of the rotating machine, and the end of the sleeve U has a positioning bearing surface 12' The u surface is provided with at least one groove 14 along its longitudinal direction. The second balance ring 2 is made of metal material and is sleeved on the sleeve ^, and the edge of the balance ring 21 has a weight 22. The buffering potential ring 3 is sleeved on the sleeve ^. Between the _ 3! and the second balance ring 21 respectively - the buffer _ 31, the locating bearing surface 12 and the adjacent - the balance ring 21 also have a gradual replacement of the 201042181 lap 31 ' The door of the collar 41 and the balance ring 21 of the woman == punch=ring 31. The inner surface of each of the cushion washers 31 has a length of: 4, 4, the special cushion washer 3 is sleeved in the The groove of the sleeve u and the soft metal of the sleeve material can reduce the wear of the '2 angular displacement. In addition, the balance ring can also be used to separate the two. Balance ring 21, borrow ::: Ο
該:衡環21可以獨立的相對於該套筒U旋轉，而不會在 二平衡環21間產生彼此干擾的現象。 在 中的rr:可為橡膠塾圈、波形彈簧或盤型彈簧之 =任一種’本實施射係以橡雜圈為例，套於該套筒 =鎖定套環4卜連接於該套筒„的另—端。於本實 施例中，該較㈣41細政螺接於 式 固定於該套筒11的另一端。 二平衡環21、該等緩衝墊圈31、以及該彈性 衣32係被夾持於該鎖定套環41與該定位承靠自u之間。 各該平衡環21上設置有—該脈衝磁場產生器51，用 以產生脈衝磁場分猶祕各該平衡環21，且所產生的脈 衝磁％至乂具有垂直分量作用於各該平衡環Μ的環面。各 該脈衝磁場產生器5ί主要係由—脈衝電流產生器％、以 及呈C形的電磁鐵54所組成，該電磁鐵54具有一氣隙 551可供—該平衡環21置人。而主要是利用該脈衝電流產 生益52產生脈衝電流作用於該電磁鐵54，該電磁鐵分即 7 201042181 會於该氣隙5 5產生脈衝磁場。 在-該平衡環21的局部置入該氣隙55且轉動時，該 脈衝磁場即至少有垂直分量作驗解衡環21的環面而 產生感應渦電流(本實施例中該脈衝磁場係垂直於該平衡 環21)，感制電流與舰衝磁場的外積會在該平衡環 上造成-相反於該旋轉軸91轉動方向的切線方向脈衝推 力’利用此方式即可致動旋轉中的該平衡環21產生一小角 度位移，並藉由控制該脈衝磁場的脈衝數量來達到控制該 平衡環21轉動角度的效果。 於尽貫施例T，該彈性. ，一”叫啊心蒼；衣外上興 -該緩衝墊圈3i之間’而鄰接於該敎套環仏而該彈 性環32係藉由其彈性復歸力來提供逼緊預壓力的效果，使 鋪定套環4丨能向該定位承靠面12迫緊，岐得該等平 與各該緩衝_ 31之間產生摩擦力而料於該旋 ==上’在未受到渦電流致動力情況下，此摩擦力可以 使該料_21與該套Wu相轉_91同步 請再參閱第二圖，在實際使用味， 主要係n Μ 摘平衡裝置10 等轉動機械的旋轉軸91，且該 _承靠面12與該鎖定套環41所夾 於該旋轉轴91上。於__旋轉時， 亥4千衡裱上的配重塊22 旋轉的過財—發料w j發揮怕的超。而在 磁場產生3 5丨f §時，可使用各該脈衝 91的角/位移二Γ動各該平衡環21相對於該旋轉軸 移’箱改變各該平衡㈣上的配重塊22相 201042181 對於該旋轉轴91的角度位置，藉以進行平衡的調整。而該 等脈衝磁场產生器51可裝設於前述的轉動機械(圖中未示) 内部’或也可由外部裝置上的脈衝磁場產生器來進行平衡 調整’調整平衡歧輕平衡後的㈣，齡別以第三圖 ㈧以及第三_)卿來舉例表^。財，第三圖⑷及第 二圖(B)中的黑點，在外_黑點係指該旋轉軸％的不平 衡量’而在内圈的二個黑點則是代表該二配重塊22的重心The balance ring 21 can be independently rotated relative to the sleeve U without causing interference between the two balance rings 21. In the rr: can be a rubber ring, wave spring or disc spring = any kind of 'this embodiment of the shooting system with a rubber ring as an example, the sleeve = the locking collar 4 is connected to the sleeve „ In this embodiment, the (4) 41 fine-spinning screw is fixed to the other end of the sleeve 11. The second balance ring 21, the cushion washers 31, and the elastic garment 32 are clamped. The locking collar 41 and the positioning are supported by the u. Each of the balance rings 21 is provided with the pulsed magnetic field generator 51 for generating a pulsed magnetic field, and each of the balance rings 21 is generated. The pulse magnetic % to 乂 has a vertical component acting on the torus of each of the balance rings 各. Each of the pulsed magnetic field generators 5 ί is mainly composed of a pulse current generator % and a C-shaped electromagnet 54 , the electromagnet 54 has an air gap 551. The balance ring 21 is placed. The pulse current is generated by the pulse current generating 52 to generate a pulse current to the electromagnet 54. The electromagnet is generated in the air gap 5 5 201042181. a pulsed magnetic field. When the air gap 55 is partially inserted into the balance ring 21 and rotated, The pulsed magnetic field, that is, at least a vertical component, is used to detect the torus of the balance ring 21 to generate an induced eddy current (the pulsed magnetic field is perpendicular to the balance ring 21 in this embodiment), and the external product of the sense current and the ship's impulse magnetic field will be in the balance ring. The tangential direction pulse thrust caused by the opposite direction to the direction of rotation of the rotary shaft 91 can be used to actuate the balance ring 21 in rotation to generate a small angular displacement, and control is achieved by controlling the number of pulses of the pulsed magnetic field. The effect of the angle of rotation of the balance ring 21 is as follows: for the embodiment T, the elasticity, a "called ah heart; the outside of the garment - between the cushion washers 3i" and adjacent to the 敎 collar and the elasticity The ring 32 provides the effect of tightening the pre-stress by its elastic reversion force, so that the laying collar 4丨 can be tightened toward the positioning bearing surface 12, and the flatness is generated between each of the buffers 31. The frictional force is expected to be in the case of the rotation == above. In the case of not being subjected to the eddy current actuation force, the frictional force can synchronize the material_21 with the set of Wu. _91 Please refer to the second figure for the actual use. , mainly n Μ picking balance device 10 and other rotating machinery The rotating shaft 91 is sandwiched between the bearing surface 12 and the locking collar 41. When the __ is rotated, the weight of the counterweight 22 on the 4th balance is rotated. When the magnetic field generates 3 5 丨f §, the angle/displacement of each of the pulses 91 can be used to move each of the balance rings 21 relative to the axis of rotation to change the weight of the counterweight 22 on each of the balances (4) 201042181 For the angular position of the rotating shaft 91, a balance adjustment is made. The pulsed magnetic field generators 51 can be installed inside the rotating machine (not shown) or can be balanced by a pulsed magnetic field generator on an external device to adjust the equilibrium balance (4). Do not use the third figure (eight) and the third _) Qing to give an example ^. The black points in the third figure (4) and the second figure (B), the outer_black point refers to the unbalance amount of the rotation axis % and the two black points of the inner circle represent the two weights 22 Center of gravity
位置。在未平衡前如第三圖⑷的二配重塊22㈣心合力 位置和旋轉軸91的科衡量是在未平衡㈣，⑽使用脈 衝渴電流調整配重塊22的角度位置後可以達到如第三圖 (B)的平衡後狀態。 請參閱第四圖，該雜環32也可以設置在該定位承靠 面12與—該平衡環21之間，而鄰接於該定位承靠面。該 彈性環32同樣具有與前述實施t的彈性緩衝的功效。其設 置位置並不以在該鎖定套環q與一該平衡環21之間為限 、此外，如第五圖所示，每個平衡環21上也可使用二個 f上的脈衝磁場產生器51來作用’可藉此產生更大的作用 效果，調整平衡環21 _度更為快速。 由上可知，本發明所提供的平衡裝置 :呈中，行平衡調整，也就是屬於主動式動平衡=的 械將平衡環21藉由該套筒11直接裝設於轉動機 ，㈣轴91上，具相積較小且構造簡單之優點。 9 201042181 【圖式簡單說明】 第一圖係本發明一較佳實施例之組合立體圖。 第二圖係本發明一較佳實施例之分解立體圖，顯示脈 衝磁場產生器移除後的分解狀態。 第三圖(A)及第三圖(B)係本發明一較佳實施例之動作 示意圖，分別顯示平衡前及平衡後的狀態。 第四圖係本發明一較佳實施例之分解立體圖，顯示彈 性環位於定位承靠面與一平衡環之間的狀態。 第五圖係本發明一較佳實施例之另一組合立體圖，顯 示以二個脈衝磁場產生器作用於一平衡環的狀態。 第六圖係習知電磁鐵致動之示意圖，顯示旋轉盤置於 電磁鐵的氣隙之中，並未與電磁鐵接觸。以及 第七圖係習知渦電流作用示意圖，顯示渦電流作用於 旋轉盤的狀態。 【主要元件符號說明】 10轉動機械的渦電流致動平衡裝置 11套筒 14凹槽 22配重塊 32彈性環 41鎖定套環 52脈衝電流產生器 55氣隙 12定位承靠面 21平衡環 31緩衝墊圈 34凸點 51脈衝磁場產生器 54電磁鐵 91旋轉軸 10position. Before unbalanced, as shown in the third figure (4), the weight of the two weights 22 (four) and the axis of rotation 91 are measured in unbalanced (four), (10) using the pulsed thirst current to adjust the angular position of the weight 22 to reach the third The post-balanced state of Figure (B). Referring to the fourth figure, the heterocyclic ring 32 may also be disposed between the positioning bearing surface 12 and the balance ring 21 adjacent to the positioning bearing surface. The elastic ring 32 also has the effect of elastic cushioning with the aforementioned implementation t. The arrangement position is not limited between the locking collar q and a balance ring 21, and further, as shown in the fifth figure, two pulse magnetic field generators on the f can also be used on each balance ring 21. 51 to act 'can be used to produce a greater effect, adjust the balance ring 21 _ degrees faster. It can be seen from the above that the balancing device provided by the present invention has a medium balance and a balance adjustment, that is, an instrument belonging to the active dynamic balance = the balance ring 21 is directly mounted on the rotating machine by the sleeve 11, and (4) the shaft 91 It has the advantages of small phase product and simple structure. 9 201042181 [Brief Description of the Drawings] The first drawing is a combined perspective view of a preferred embodiment of the present invention. The second drawing is an exploded perspective view of a preferred embodiment of the present invention showing the exploded state after removal of the pulse magnetic field generator. The third (A) and third (B) diagrams are schematic views of the operation of a preferred embodiment of the present invention, showing the state before and after the balance, respectively. The fourth figure is an exploded perspective view of a preferred embodiment of the present invention showing the state in which the elastic ring is located between the positioning bearing surface and a balance ring. Figure 5 is a perspective view of another combination of a preferred embodiment of the present invention showing the state in which two pulsed magnetic field generators act on a gimbal. The sixth figure is a schematic diagram of a conventional electromagnet actuation showing that the rotating disk is placed in the air gap of the electromagnet and is not in contact with the electromagnet. And the seventh diagram is a schematic diagram of the conventional eddy current action, showing the state in which the eddy current acts on the rotating disk. [Main component symbol description] 10 eddy current actuating balancing device for rotating machine 11 sleeve 14 groove 22 weight 32 elastic ring 41 locking collar 52 pulse current generator 55 air gap 12 positioning bearing surface 21 balance ring 31 Buffer washer 34 bump 51 pulse magnetic field generator 54 electromagnet 91 rotating shaft 10