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What Is The Creeping Phenomenon Of Hydraulic Motors?
Release Time:
2021-09-15
The calculation method of the speed ratio of the hydraulic motor is as above. Theoretically speaking, the speed ratio should be symmetrical. However, when the speed ratio of the hydraulic motor is too low, the symmetricality is usually not maintained, resulting in an unstable situation that changes quickly and slowly,hydraulic motor and stops at times. It is called the crawling phenomenon of hydraulic motors. The friction resistance of the basis increases with the expansion of the speed,hydraulic motor and the friction resistance inside the motor working in the static and low-speed gear areas does not increase when the speed expands in the work, but decreases,hydraulic motor resulting in a brief " "Negative characteristics" friction.
The calculation method of the speed ratio of the hydraulic motor is as above. Theoretically speaking, the speed ratio should be symmetrical. However, when the speed ratio of the hydraulic motor is too low, the symmetricality is usually not maintained, resulting in an unstable situation that changes quickly and slowly,hydraulic motor and stops at times. It is called the crawling phenomenon of hydraulic motors. The friction resistance of the basis increases with the expansion of the speed,hydraulic motor and the friction resistance inside the motor working in the static and low-speed gear areas does not increase when the speed expands in the work, but decreases,hydraulic motor resulting in a brief " "Negative characteristics" friction.
On the other hand,hydraulic motor the oil motor and the load are driven by the pressure increase after the oil is reduced, so a conceptual model can be used to describe the whole process of the oil motor in the low-speed gear region: pull the elastic end at a constant speed V0 (Its elasticity reduction can be equivalent to the four-column hydraulic function of compressible working chemicals under high pressure) A small mass of M (equivalent to the internal frictional resistance of the motor,hydraulic motor load mass, and moment of inertia) solves "negative characteristics" Friction resistance exercise fitness.
When the mass M does not move in place or the speed is very low, the friction will be large, the elasticity will become smaller, the amount of mechanical energy will be increased,hydraulic motor and the torque will be increased. Only when the elasticity becomes so small that its torque is equal to the rolling friction, it just starts to exercise,hydraulic motor that is, u>0. But once the small object starts to exercise, the friction suddenly decreases,hydraulic motor and the small object can be released immediately. The small object suddenly accelerates and drags. As a result, the elasticity becomes smaller and the torque decreases. The small object moves for a period of time by the moment of inertia. After the journey, it stops until the spring's movement makes the spring yellow again, the torque increases, and the small objects move again and again,hydraulic motor resulting in a constant movement and a stop condition. For oil motors, this is the gripping situation.
In addition,hydraulic motor the displacement and leakage of the oil motor also fluctuate periodically with the phase angle of the generator rotor rotation,hydraulic motor which will also cause fluctuations in the motor rated power ratio. When the oil motor is operating in a low-speed gear,hydraulic motor this type of transmission ratio fluctuation cannot be covered by the moment of inertia and is clearly manifested, resulting in a grasping situation.
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