A device for testing elastic characteristics of simulated thrust foil bearings
A technology of elastic characteristics and testing device, which is applied in the direction of mechanical bearing testing, using stable tension/pressure to test the strength of materials, etc., can solve the problems of long disassembly cycle, high test cost, high product risk, etc., to reduce the test cost. , avoid damage to the product, improve the effect of testing efficiency
Active Publication Date: 2017-10-10
JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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Problems solved by technology
This method has high test cost, long product disassembly and assembly cycle, great risk of product damage, and the elastic performance characteristics of the thrust foil bearing cannot be obtained from the test, which is used to guide the development of the thrust foil bearing, which is not conducive to Development and Production of Push Foil Bearing
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[0016] See attached Figures 3 to 6 , an elastic characteristic testing device for simulating the working condition of a thrust foil bearing, characterized in that it includes a rotating shaft 1, a fastening screw 2, a bearing 3, a force point adjustment base 4, a pressure plate 5, a radius adjustment base 8, a device base Seat 10, the rotating shaft 1 is connected with the force point adjustment base 4 through the bearing 3, the two ends of the rotating shaft 1 are installed on the radius adjustment base 8, the radius adjustment base 8 is installed on the device base 10, and the force point adjustment base 4 can surround the rotating shaft Rotate; Dovetail groove 4-1 is arranged at the bottom of power point adjustment base 4, and threaded hole is arranged on one side of dovetail groove, and pressing plate 5 comprises upper dovetail boss 5-1 and lower trapezoidal plate 5-2; Dovetail boss can Sliding along the dovetail groove, the pressure plate 5 can rotate with the rotation o...
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The invention provides an elasticity feature tester by simulating the condition of a thrust foil bearing. The tester is characterized by comprising a rotating shaft (1), fastening screws (2), the bearing (3), a force point adjusting pedestal (4), a pressure plate (5), a radius adjusting pedestal (8) and a device pedestal (10), wherein the rotating shaft (1) is connected with the force point adjusting pedestal (4) via the bearing (3), the two ends of the rotating shaft (1) are mounted on the radius adjusting pedestal (8), the radius adjusting pedestal (8) is mounted on the device pedestal (10), and the force point adjusting pedestal (4) can rotate around the rotating shaft. A dovetail groove (4-1) is formed in the bottom of the force point adjusting pedestal (4), a threaded hole is formed at one side of the dovetail groove, and the pressure plate (5) includes a dovetail boss (5-1) in the upper and a trapezoid flat (5-2) in the lower.
Description
Technical field: [0001] The invention belongs to the field of special tooling design for mechanical performance testing. Background technique: [0002] See attached Figures 1 to 2 , the thrust foil bearing is the core component of the foil-type air dynamic pressure bearing. It is composed of multiple fan-shaped arched foils and a circular metal base plate. The foils are evenly distributed on the metal base plate along the circumferential direction. The connection of the metal bottom plate, during the working process, when the rotor rotates, a wedge-shaped gap is formed between the fan-shaped arched foil and the thrust plate of the rotor, and the air is brought into the space between the thrust plate and the thrust foil bearing due to the viscosity In the wedge-shaped gap, a hydrodynamic air film is formed to support the rotor system. [0003] It is an important task in the development of thrust foil bearings to simulate and measure the elastic characteristics of thrust foi...
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Login to View More IPC IPC(8): G01M13/04G01N3/08
Inventor 郝定武柳荫肖智峰项勇
Owner JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA