Rotor system simulation test bed of variable rigidity bearing
A technology of system simulation and variable stiffness, applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve the problems of changing the stiffness of horizontal support and vertical support, and achieve the effect of reliable performance and simple structure
Inactive Publication Date: 2010-04-21
UNIV OF SHANGHAI FOR SCI & TECH
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[0003] The invention discloses a rotor system simulation test bench with variable stiffness support. The existing fixed support is changed to variable stiffness support, which can overcome the horizontal support stiffness and vertical support caused by the existing single use of bearings to support the entire shaft system. The problem of stiffness "coupling" together, the present invention can not only change horizontal support stiffness and vertical support stiffness, change support conditions and change installation conditions respectively, but also can realize automatic adjustment function conveniently in the process of test
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[0017] A rotor system simulation test bench supported by variable stiffness, such as figure 1 , figure 2 , image 3 As shown: the output shaft of the motor 1 is connected with the two-stage rotating shaft, that is, the first rotating shaft 4 and the second rotating shaft 6 through a coupling 5, and two rotating discs 3 and two supports are respectively connected to each rotating shaft, and its characteristics are: The support is a variable stiffness support 2; the variable stiffness support includes a T-slot base 7, a horizontal drive mechanism and a vertical drive mechanism;
[0018] A) The T-shaped slot base 7 is connected to the ground through anchor bolts, and one side of the T-shaped slot base is fixedly connected with four angle irons 15, and the horizontal drive shaft support 14 is respectively fixed on the respective angle irons by bolts. 15, the upper end surface of the other side of the T-shaped slot base 7 is respectively fixed with a vertical drive shaft support...
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The invention discloses a rotor system simulation test bed of a variable rigidity bearing. The conventional fixed bearing is changed into the variable rigidity bearing. The rotor system simulation test bed of the variable rigidity bearing is characterized in that: a T-shaped groove base is connected with the ground through a bolt, one lateral surface of the T-shaped groove base is connected with a horizontal driving mechanism, and the upper end face of the other side of the T-shaped groove base is fixedly connected with a vertical driving mechanism; a horizontal driving screw is connected with two fixed blocks in turn through screw threads respectively, the two fixed blocks are fixedly connected with a horizontal movable rigid slide block respectively, and the two horizontal movable rigid slide blocks are embedded into the T-shaped groove base; the upper parts of two vertical lifting shafts are connected with the horizontal movable rigid slide blocks through internal splines respectively, while the lower parts are connected with vertical driving worm wheels; and the tops are rigidly connected with a lower support plate, a plate spring and an upper cover plate; and vertical driving worms are engaged with the vertical driving worm wheels, and the vertical driving worm wheels are connected with the vertical lifting shafts through the screw threads. The rotor system simulation test bed can be used for testing dynamic characteristics of various shaft systems, namely changing the horizontal bearing rigidity and the vertical bearing rigidity and optimizing the combination of the two rigidities.
Description
technical field [0001] The invention relates to a device for simulating a rotor system of a rotating machine, which is a technical improvement on the existing rotor system simulating test bench. The invention can change the horizontal support stiffness and the vertical support stiffness respectively, and make the combination of these two stiffnesses reach the optimum, automatically adjust the support condition and change the installation condition. Background technique [0002] At present, the known rotor system simulation test bench fixes the rotor system on the base plate or directly on the ground, and uses bearings alone to support the entire shaft system. Taking the State Key Laboratory of Mechanical Systems and Vibration of Shanghai Jiaotong University as an example, the rotor system The system simulation test bench is to connect the bearing seat bolts to the base plate, and connect the rotating shafts through bearings and couplings. The disadvantage of this structure ...
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Inventor 胡彦红张雷王志良陈巍巍刘秋皊
Owner UNIV OF SHANGHAI FOR SCI & TECH