A method for on-site dynamic balancing of the high-speed output shaft of the reducing and sizing gearbox

Abstract

The invention discloses a field dynamic balancing method for the high speed output shaft of a diameter reducing gear box, and belongs to the field of field dynamic balancing. The method includes the steps of 1, installing a key phase sensor and a vibration sensor, and connecting to a dynamic balance instrument; 2, reading the rotation speed n of the output shaft, the initial rotation frequency amplitude alpha and the initial phase value beta; 3, adding test mass block M at the beta + gamma phase position; 4, reading the rotation speed n1 of the output shaft, the rotation frequency amplitude alpha 1 and the phase value beta 1; 5, based on amplitude alpha, beta, test mass M, test mass M phase beta + gamma, alpha 1 and beta 1, calculating strain addition mass m1 and phase delta beta; 6, reading the rotation speed n2, the rotation frequency amplitude alpha 2 and the phase value beta 2, confirming whether or not static balance is required, and if yes, repeating the above steps. The field dynamic balancing method overcomes the disadvantage that the output shaft of the diameter reducing gear box produces unbalance easily to affect the stable use of the field, and can quickly and effectively reduce the problem that the axial vibration of the output shaft of the diameter reducing gear box is high, so that the disassembly of a speed change gear box can be reduced, and the cost of dynamic balance can be reduced.

Description

technical field [0001] The invention relates to the technical field of on-site dynamic balancing, and more specifically relates to a method for on-site dynamic balancing of a high-speed output shaft of a reducing and sizing gearbox. Background technique [0002] With the development of the current manufacturing industry, the demand for high-speed gearboxes is increasing. No matter how high the process and machining accuracy are, the shafts in the gearbox will always have unbalance. As long as the unbalance is controlled within a certain range, it will not be damaged. The normal operating conditions of the gearbox will be affected; but once the unbalance exceeds a certain limit, it will have a greater impact on the normal operating conditions of the gearbox, and in severe cases, major accidents will occur. Therefore, dynamic balance is a basic problem that must be solved in the manufacturing process of high-speed gearboxes. The unbalance affects the vibration of the gear sha...

AI Technical Summary

Problems solved by technology

[0006] The above applications are all helpful to achieve on-site dynamic balance, but the practical effect is not efficient. It often takes several times of debugging to achieve dynamic balance. The operation is cumbersome, and there are still many inconveniences in application.

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