- 學位論文
動平衡機之多平面分離原理與應用
The Principle and Application of Multi-Plane Separation for Balancing Machines
摘要
產業界目前通用動平衡機之平衡法則，僅可運用在二個平衡校正面之剛性轉子平衡。對於一些較為特殊的轉子，如曲柄軸、大型的渦輪轉子以及發電機轉子…等，在平衡時必須利用多個平衡面來分散集中在兩個平衡面上之不平衡質量。僅以具有二平衡校正面之平衡機，用以平衡這些複雜轉子之多面校正是相當困難的。 本論文提出以指定量測點之影響係數法証明平面分離的原理，並由二個分離平面之調定電路邏輯為基礎，推導出三面及多平面分離之一般性邏輯程序，將軟式平衡機之兩平面分離方法，擴充成多個平衡面的分離方法，如此可使現今一般工業通用之雙平面平衡機在最少修改工程下擴充成多平面平衡機，將其應用功能從對稱型轉子平衡擴增為非對稱轉子平衡。同時，本論文以三平面分離原理及硬體架構，提出「多平面之簡約平衡法」校正程序，應用於四平衡面以上的剛性轉子，令必須多面平衡之剛性轉子僅需三平衡面動平衡機即可完成平衡校正，使得小幅修改之三平面動平衡機，運用此法即可擴增應用範圍，附加價值隨之大幅提昇。 本論文並以實際之非對稱轉子－直列式四缸引擎以及V型六缸引擎曲柄軸為校正轉子，應用迭代修正影響係數法，以三平面動平衡機進行多平面平衡，得到較傳統平衡方式更佳之平衡精度。
並列摘要
Most balancing machines used in industry are only involved in using two-plane separation procedure for the rigid rotor. For the special rotor with complex mechanism, like crank-shaft rotor, turbo-machinery, and electrical power generator plant, the balancing procedure will need to utilize multi-plane scheme to distribute the imbalance mass that is concentrated unequally on the two-plane separation procedure. It will be a difficulty task for balancing those rotors, involving complex mechanism balancing machines, only using two-plane balancing procedure. This paper validates the utilization of the plane separation theory on the exact-point influence coefficient balancing procedure. Base on the adjustment circuit logic of two-plane separation, the generalized logical procedure of three-plane and multi-plane separation procedure has been deductive. Extending the two-plane separation of soft-pedestal balancing machine to the multi-plane separation, balancing procedure allows the least modification on the conventional two-plane separation balancing machine to upgrade to the multi-plane separation balancing machine. Based on three-plane separation theory and related hardware structure, this paper proposes ‘Multi-Plane Simplified Balancing Method’ on the rigid rotor that will require more than four balancing planes. For those need multi-plane balancing plane rotors, this proposed method only require three-plane balancing plane for balancing machine. After slightly modification on the three-plane balancing machine, this proposed method increases the functions of the balancing and enhance machine values. Converting the symmetrical rotor balancing machine to asymmetrical rotor, validating experimentally by in-line type 4-cyclinder and V-type 6-cyclinder crank-shaft rotor, using iteration of influence coefficient method, and utilizing multi-plane balancing method on three-plane balancing machine, a higher precision balancing measurement is obtained compared to the conventional balancing machine.