RYB internal meshing cycloid gear pump flow causes and solutions 1, RYB internal meshing cycloid gear pump causes 1 The internal and external rotor tooth gap is too large, so that the suction oil cavity intercommunication. Volumetric efficiency is significantly reduced, the output flow is not enough ; axial clearance is large; RYB internal meshing cycloid gear pump flow less causes and solutions
1. Causes of RYB internal meshing cycloidal gear pump 1 The tooth side clearance of the inner and outer rotors is too large, so that the suction pressure oil chambers communicate with each other. The volumetric efficiency is significantly reduced, and the output flow is insufficient;
2 axial clearance is large;
3 The sealing surface in the oil suction pipe is not tightly sealed, so that the pump sucks in air, and the effective suction flow rate is reduced;
4 The oil absorption is not smooth. If the viscosity of the oil is too large, the suction flow rate of the Botaibang oil filter is blocked by dirt, etc.;
5 The relief valve is stuck in the half-open position, and part of the flow from the pump is returned to the tank through the relief valve, so that the flow into the system is not enough. This is accompanied by a failure of the system pressure.
2. RYB internal meshing cycloid gear pump solution 1 Replace the inner and outer rotors so that the backlash is within the specified range (generally less than 0.07mm);
2 Grind both ends of the pump body to ensure that the axial clearance of the inner and outer rotors is within 0.02~0.05mm;
3 Replace the damaged suction pipe seal, and the cycloid gear pump is wrapped with Teflon tape to tighten the pipe joint and then tighten the pipe joint;
4 Select the oil of the appropriate viscosity and clean the oil filter to make the oil flow smooth. And increase the suction pipe diameter as appropriate;
5 Repair the overflow valve to eliminate the phenomenon that the overflow valve is shorted to the fuel tank and the effective flow of the pump is reduced.
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