一种双间隙单轴承轴向可移动刚性转子装置
By using a double-gap, single-bearing, axially movable rigid rotor device, the problems of complex rotor structure, low sensitivity of axial force adjustment, and large leakage of bearing cooling medium in liquid rocket engine turbopumps have been solved, realizing the design of a rigid rotor under high-frequency variable operating conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING AEROSPACE PROPULSION INST
- Filing Date
- 2023-12-22
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, the rotor structure of liquid rocket engine turbopumps is complex and the axial force adjustment sensitivity is low, which cannot meet the requirements of high frequency and wide range of variable operating conditions, and the leakage of bearing cooling medium is large.
The device employs a double-clearance, single-bearing, axially movable rigid rotor assembly, comprising a screw, inducer wheel, clamping nut, shaft, centrifugal wheel, balance piston, baffle, ring seat, housing, bearing, liquid seal wheel, pressure plate, bushing, turbine disk, and large nut. Through angular contact ball bearings, pre-carrier springs, and a labyrinth seal structure, it achieves bidirectional rotor movement and media recirculation, simplifying the structure and reducing leakage.
It improves the sensitivity of axial force adjustment, simplifies the structure, shortens the shaft length, reduces media leakage, increases the critical speed, and meets the requirements of high-frequency variable operating conditions.
Smart Images
Figure CN117823448B_ABST