Booster fan balancing method based on vector method
A pressurized fan and balancing technology, which is applied to the components of the pumping device for elastic fluids, mechanical equipment, machines/engines, etc., can solve the unbalanced amount of the armature and impeller without comprehensive analysis, and the high cost of assembly , no interchangeability and other issues, to achieve the effect of small vibration, low cost, and improve production efficiency
Inactive Publication Date: 2021-04-09
重庆虎溪电机工业有限责任公司
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Problems solved by technology
The existing technology is to fine-tune the balance of the armature and the impeller respectively, to minimize the remaining unbalance of the armature and the impeller as much as possible, then to assemble the impeller and the motor, and to repeatedly select the impeller and the motor for matching until it is qualified , the above method does not comprehensively analyze the remaining unbalance of the armature and impeller, and there are problems such as no interchangeability, low pass rate, and high assembly cost
Method used
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Embodiment 1
[0018] This embodiment discloses a vector method-based booster fan distribution and balancing method, which includes the following steps:
[0019] 1) Process the impeller 1 and motor 2 of the dust removal booster fan. Among them, see image 3 Figure (1) in the figure is a cross-sectional view of the impeller 1 above, and four key grooves I101 are processed on the hub of the impeller 1, see image 3 In (2) figure, the four key grooves I101 are equally spaced along the circumference of the inner wall of the hub, and the four key grooves I101 are respectively marked as key groove A, key groove B, key groove C and key groove D. A keyway II 202 matching the keyway I101 is machined on the armature 201 of the motor 2 .
[0020] 2) Use a dynamic balancing machine to measure the size and direction of the remaining unbalance of the impeller 1 and the armature 201, take the intersection point of the impeller 1 and its axis of rotation as the origin, and take the keyway A, keyway B, key...
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The invention discloses a booster fan balancing method based on a vector method. The booster fan balancing method comprises the following steps that (1) an impeller and a motor are machined, four key slots I are machined in an impeller hub, and key slots II matched with the key slots I are machined in an armature of the motor; (2) the sizes and directions of the residual unbalance amounts of the impeller and the armature are respectively measured by adopting a dynamic balancing machine, and residual unbalance amount phase diagrams of the impeller and the armature are established; and (3) the key slots II of the armatures are assembled with the corresponding key slots I to enable the residual unbalance amount phases of the impellers and the armatures to form opposite phases, and it is ensured that the residual unbalance amounts of the impeller and the armature are greater than the vector sum of the residual unbalance amounts of the impeller and the armature. Each set of impeller is assembled with the motor, an optimal matching phase is obtained, in a correct matching state, the vector sum of the residual unbalance amount of a fan is minimum, the radial centrifugal force is minimum, and the rotating force is superposed; and balance is good, the vibration is small, one-to-one assembly of the impeller and the motor is realized, and the production efficiency is improved.
Description
technical field [0001] The invention relates to a distribution and balance method of a supercharging fan based on a vector method. Background technique [0002] The rotating part of the fan is mainly composed of the armature and the impeller. It is a rotating assembly, and its dynamic unbalance is composed of the vector sum of the remaining unbalance of the armature and the impeller. The existing technology is to fine-tune the balance of the armature and the impeller respectively, to minimize the remaining unbalance of the armature and the impeller as much as possible, then to assemble the impeller and the motor, and to repeatedly select the impeller and the motor for matching until it is qualified , the above method does not comprehensively analyze the remaining unbalance of the armature and the impeller, and there are problems such as no interchangeability, low pass rate, and high assembly cost. [0003] Therefore, it is necessary to develop a method for balancing the boo...
Claims
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Login to View More IPC IPC(8): F04D25/08F04D29/66
CPCF04D25/08F04D29/662
Inventor 彭名凯胡加勇蔡文培李世进左明徐希谭德胜
Owner 重庆虎溪电机工业有限责任公司