A stepper motor drives two balance discs to adjust the online dynamic balance head in two directions
A stepping motor, two-way adjustment technology, applied in the direction of electric components, electromechanical devices, electrical components, etc., can solve the problems of complex structure, low control accuracy, slow adjustment speed, etc., and achieve small size, high control accuracy, and high adjustment efficiency Effect
Active Publication Date: 2019-07-16
NORTHEASTERN UNIV LIAONING
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Problems solved by technology
[0005] The purpose of the present invention is to effectively overcome the disadvantages of the existing online dynamic balancing device, such as complex structure, low control precision, and slow adjustment speed.
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Embodiment Construction
[0027] A motor-driven dynamic balancing head structure.
[0028] First of all, the dynamic balancing head is required to be able to set an eccentricity with adjustable size and phase on a vertical plane of the rotating shaft. In order to realize this function, this paper adopts the double counterweight fixed radius polar coordinate method, and its schematic diagram is as follows figure 1 As shown, two fixed counterweights with both mass m and distance r can provide minimum 0 (relative angle is 180°) and maximum 2mr (included angle is 0°) balance mass.
[0029] The present invention is divided into two parts: one part is the balance plate part, which is composed of balance plates A and B to provide double counterweights. Although the balance quality provided by each counterweight in the double counterweights is fixed, by changing the double counterweights The relative included angle, thereby changing the balance quality of the final overall output, the largest when the inclu...
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A stepper motor drives two balance plates to adjust the online dynamic balance head in two directions, including a balance plate part and a control plate part; wherein, the balance plate part and the control plate part are connected to the dynamic balancing head sleeve through bearings and interference fits respectively. The shaft sleeve is connected to the main shaft through a tightening sleeve, so the balance plate can rotate freely relative to the main shaft driven by a stepper motor, and the control plate rotates synchronously with the main shaft in real time; the present invention adopts a double counterweight fixed radius polar coordinate method , composed of balance plates A and B, are used to provide double counterweights. Although the balance quality provided by each counterweight in the double counterweights is fixed, by changing the relative angle of the double counterweights, the balance of the final overall output is changed. Quality; the control system of the present invention is simple and the control precision is high; it adopts gear transmission and the counterweight precision is high; the balance plate can be adjusted in two directions and the adjustment efficiency is high. The whole invention has a mechanical structure and has no electromagnetic interference to the spindle system.
Description
technical field [0001] The invention belongs to the technical field of rotor system dynamic balance, and in particular relates to a rotor online dynamic balance head structure. Background technique [0002] Rotor imbalance is the main cause of mechanical equipment vibration. The dynamic load caused by the unbalanced rotor on the support not only causes vibration of the entire mechanical equipment, generates noise, accelerates bearing wear, causes high-frequency fatigue damage to the rotor components and forced vibration damage to some parts of the supporting part, and reduces the life of the mechanical equipment. What's more serious is that if the vibration of the rotor structure exceeds a certain range at high speed, the slewing mechanism and even the entire system will be damaged, causing major equipment accidents. Therefore, it is necessary to eliminate the unbalanced vibration of the rotor system through an effective method. At present, the most commonly used method is...
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IPC IPC(8): H02K37/24H02K7/04
CPCH02K7/04H02K37/24
Inventor 侯小捷叶瑞夺魏彦辉王菲罗忠
Owner NORTHEASTERN UNIV LIAONING