An adjustable eccentric annular dynamic and static rotor rubbing experimental device
A technology of dynamic and static rotors and experimental devices, which is applied to pump devices, parts of pumping devices for elastic fluids, machines/engines, etc. It can solve problems such as bearing overload, gap wear, and increased vibration, and achieve convenient experimental operation. The effect is obvious and the dynamic and static gap adjustment is simple.
Active Publication Date: 2022-07-19
ZHEJIANG UNIV
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Problems solved by technology
Centrifugal pumps are often equipped with an orifice ring, which maintains a certain gap with the impeller. If the gap is too small, the impeller will easily rub against the orifice ring during high-speed rotation. Long-term friction will cause excessive wear of the gap, which will not only increase leakage Quantity and performance decline will affect the stable operation of the unit, resulting in bearing overload and increased vibration. Therefore, the gap control of the mouth ring is a difficult problem
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[0020] The present invention will be described in detail below according to the accompanying drawings and preferred embodiments, and the purpose and effects of the present invention will become clearer.
[0021] like Figures 1 to 4 As shown in the figure, as one of the embodiments, the adjustable eccentric annular dynamic and static rotor rubbing experimental device includes a base 1, and a motor 2, a bearing seat 3, and a sealing cavity 4 that are fixedly supported on the base 1 by screws and connected in sequence. , transition connecting sleeve 9 , plexiglass observation cavity 5 .
[0022] The motor 2 is connected with the bearing seat 3 by bolts, and the other end of the bearing seat 3 is connected with the sealing cavity 4 by bolts. One side of the transition connection sleeve 9 is fixed on the sealing cavity 4 by screws; the entire plexiglass observation cavity 5 is fixed on the other side of the transition connection sleeve 9 by screws, and the plexiglass observation ...
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The invention discloses an adjustable eccentric annular dynamic and static rotor rubbing experiment device, which comprises a base, a motor, a bearing seat, a sealing cavity, a transition connection sleeve and a plexiglass observation cavity supported on the base and connected in sequence. By controlling the screw-in depth of the adjusting screw in four directions, the combined stator components can move in corresponding directions, so as to realize the adjustment requirements for the gaps between the dynamic and static rotors in various directions, thereby realizing the normal, eccentric to rubbing state. The device meets the requirements of the rubbing of the annular dynamic and static rotors in use, and can observe the change of the gap between the dynamic and static rotors, with ideal effects, simple structure and simple experimental process.
Description
technical field [0001] The invention relates to the field of experimental devices for pumps, in particular to an adjustable eccentric annular dynamic and static rotor rubbing experimental device. Background technique [0002] Centrifugal pumps are rotating equipment that is widely used and prone to failure in modern industrial fields such as aerospace, chemical industry, and electric power. Centrifugal pumps are often provided with an orifice ring, which maintains a certain gap with the impeller. If the gap is too small, the impeller will easily rub against the orifice ring during high-speed rotation. Long-term rubbing will cause excessive wear of the gap, which will not only increase leakage The decrease in volume and performance will affect the stable operation of the unit, resulting in the consequences of bearing overload and increased vibration. Therefore, the control of the mouth ring gap is a difficult problem. In the previous static and dynamic rotor rubbing device, ...
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IPC IPC(8): F04D15/00F04D13/06F04D29/00G09B25/02
CPCF04D15/0088F04D29/007F04D13/06G09B25/02
Inventor 吴大转汪琳琳张凯叶豪杰刘荣伟武鹏
Owner ZHEJIANG UNIV