火电厂汽轮机转子轴颈的监造用同轴度快速检测工装
By designing a rapid inspection fixture for the rotor journal of a thermal power plant turbine with an adjustment and inspection mechanism, the problem of decreased inspection accuracy caused by wear was solved. This fixture enables adaptive inspection and wear monitoring of turbine rotors of different specifications, improving inspection accuracy and maintenance timeliness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWER ENG TECH INST INNER MONGOLIA ENERGY POWER GENERATION INVESTMENT
- Filing Date
- 2025-10-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing rapid testing fixtures for the coaxiality of turbine rotor journals are prone to wear after prolonged use, leading to a decrease in testing accuracy.
A rapid coaxiality testing fixture for monitoring the journal shaft of a steam turbine in a thermal power plant was designed. It includes an adjustment mechanism and a testing mechanism. The position of the support frame is adjusted to accommodate steam turbine rotors of different specifications, and the wear condition of the support wheel is monitored by a testing wheel and a pointer system to ensure testing accuracy.
It significantly improves the versatility and adaptability of the equipment, ensures the accuracy and timeliness of testing, and enables timely replacement of worn support wheels, thus guaranteeing the precision of testing.
Smart Images

Figure CN224517649U_ABST
Abstract
Claims
1. A rapid coaxiality testing fixture for monitoring the journal bearing of a steam turbine rotor in a thermal power plant, comprising a base plate (1), a connecting slide (2), a connecting groove (3), a connecting slider (4), a fixed guide rod (5), an adjusting support frame (6), a support wheel (7), an adjusting mechanism, and a testing mechanism; wherein two connecting slides (2) are provided, both of which are slidably connected to the upper end face of the base plate (1); two connecting grooves (3) are provided, both of which are opened on the upper end face of the base plate (1); two sets of connecting sliders (4) are provided, the two sets of connecting sliders (4) are respectively fixedly connected to the lower end face of the two connecting slides (2); characterized in that: The fixed guide rods (5) are provided in two sets, and the two sets of fixed guide rods (5) are respectively fixedly connected to the upper end face of the two connecting slides (2); the adjusting support frame (6) is provided in two sets, and the two adjusting support frames (6) are respectively slidably connected to the outer side of the two sets of fixed guide rods (5); the support wheels (7) are provided in two sets, and the two sets of support wheels (7) are respectively rotatably connected to the inner side of the two adjusting support frames (6), and the two sets of support wheels (7) are respectively installed on the upper end of the adjusting support frame (6) by bolts; the adjusting mechanism is provided on the upper end of the base plate (1); the detection mechanism is provided on the inner side of the adjusting support frame (6).
2. The alignment quick detection tool for manufacturing supervision of the shaft neck of the steam turbine rotor of the thermal power plant according to claim 1, characterized in that: The adjustment mechanism includes: a threaded connecting block (8), an adjustment drive motor (9), and a bidirectional screw (10); there are two threaded connecting blocks (8), which are respectively fixedly connected to the lower end faces of two connecting slides (2); the adjustment drive motor (9) is fixedly installed on the outside of the base plate (1); the bidirectional screw (10) is fixedly connected to the outside of the output shaft of the adjustment drive motor (9), and the bidirectional screw (10) is threadedly connected to the two threaded connecting blocks (8).
3. The alignment quick detection tool for manufacturing supervision of the shaft neck of the steam turbine rotor of the thermal power plant according to claim 2, characterized in that: The adjustment mechanism further includes: an adjustment motor (11) and a fixed worm gear (1101); there are two adjustment motors (11), which are respectively fixedly installed on the outside of the connecting slide (2); there are two fixed worm gears (1101), which are respectively fixedly connected to the outside of the output shaft of the two adjustment motors (11).
4. The alignment quick detection tool for manufacturing supervision of the shaft neck of the steam turbine rotor of the thermal power plant according to claim 3, characterized in that: The adjustment mechanism further includes: an adjustment threaded hole (601), a connecting worm gear (12), and an adjustment threaded rod (1201); there are two adjustment threaded holes (601), which are respectively opened on the inner side of the two adjustment support frames (6); there are two connecting worm gears (12), which are respectively rotatably connected to the inner side of the two adjustment support frames (6), and the two connecting worm gears (12) are respectively meshed with two fixed worms (1101); there are two adjustment threaded rods (1201), which are respectively fixedly connected to the upper end face of the two connecting worm gears (12), and the two adjustment threaded rods (1201) are respectively threaded to the upper end face of the two adjustment threaded holes (601).
5. The alignment quick detection tool for manufacturing supervision of the shaft neck of the steam turbine rotor of the thermal power plant according to claim 1, characterized in that: The detection mechanism includes: a sliding frame (13), a connecting guide rod (1301), a compression spring (1302), a hinge rod (14), and a detection wheel (15); two sliding frames (13) are provided, and the two sliding frames (13) are slidably connected to the inner side of the adjusting support frame (6); two connecting guide rods (1301) are provided, and the two connecting guide rods (1301) are fixedly connected to the lower ends of the two sliding frames (13), and the two connecting guide rods (1301) are slidably connected to the two adjusting support frames (6). 6) Inside; two compression springs (1302) are provided, the upper ends of the two compression springs (1302) are respectively fixedly connected to the lower end face of the two sliding frames (13), and the lower ends of the two compression springs (1302) are respectively fixedly connected to the inside of the two adjusting support frames (6); two hinge rods (14) are provided, and the two hinge rods (14) are respectively hinged to the upper end of the two sliding frames (13); two sets of detection wheels (15) are provided, and the two sets of detection wheels (15) are respectively rotatably connected to the inside of the two hinge rods (14).
6. The rapid coaxiality detection tooling for monitoring the manufacturing of turbine rotor journals in thermal power plants as described in claim 5, characterized in that: The detection mechanism further includes: a scale (602), a connecting rod (1401), and a fixed pointer (1402); the scale (602) is provided in two sets, and the two sets of scale (602) are respectively fixedly connected to the inner side of the two adjusting support frames (6); the connecting rod (1401) is provided in two sets, and the two sets of connecting rod (1401) are respectively fixedly connected to the outer side of the two hinge rods (14); the fixed pointer (1402) is provided in two sets, and the two sets of fixed pointers (1402) are respectively fixedly connected to the outer side of the two sets of connecting rods (1401).