Kaplan turbine runner static balancing test device based on stress bar method, and method
A test device and hydraulic turbine technology, applied in the direction of static/dynamic balance test, measuring device, machine/structural component test, etc., can solve problems such as cumbersome calculation, large safety risk, dumping of runner assembly, etc., and achieve calculation process Simplicity, avoiding cost increase, and increasing safety
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[0060] see Figure 1-4 , the static balance test device for the runner of the axial flow paddle water turbine based on the stress rod method, which includes a balance supporting plate 4 for supporting the runner body 2, and a stress bar 6 is installed at the bottom of the balance supporting plate 4, and the stress The rod 6 is supported on the top of the balance base 7, and the strain gauge group 5 is pasted on the stress rod 6; the blade 3 is installed on the outside of the runner body 2. By using the above-mentioned test device, any unbalance of the runner body is transmitted to the stress rod, thereby forming a bending stress, and the value and direction of the bending stress on the strain gauge group are measured by the strain gauge, thereby calculating the unbalance of the runner body and Orientation; the concentricity of the stress rod and the runner body is guaranteed by the matching accuracy of the balance pallet and the runner, and the levelness of the test platform a...
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