Hydraulic coupling capable of being automatically reused

Abstract

The invention relates to the technical field of electromechanical equipment, and discloses hydraulic coupling capable of being automatically reused. The hydraulic coupling comprises an outer shell, a turbine and a pump impeller, the outer edge of the turbine is fixedly connected with a centrifugal telescopic rod, and the centrifugal telescopic rod just extends to the longest when the turbine reaches the rated rotating speed. According to the hydraulic coupling capable of being reused automatically, under the rated power, the turbine and the pump impeller rotate at the rated rotating speed, at the moment, balance of oil pumping and oil returning is established, normal work of the coupling is guaranteed, when overload occurs, much oil is pumped into the middle cavity, power transmission is reduced, and then loads of the pump impeller and the motor are reduced; and the overload is judged according to whether oil pumping and oil returning are balanced or not, the response to transient and temporary overload is fast, normal power output is automatically recovered after overload is finished, the working continuity of the electromechanical equipment is ensured, the electromechanical equipment can work again without repair after the overload is responded, the maintenance cost is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the field of electromechanical technology, in particular to an automatic reusable hydraulic coupling. Background technique [0002] The hydraulic coupling uses oil to transmit power, which can isolate the dynamic load generated when the electromechanical equipment starts and stops, and ensures the service life and smooth operation of the motor. Please refer to Figure 5 , the hydraulic coupling mainly converts the kinetic energy of the pump wheel, turbine and housing turbine into the kinetic energy of the oil, and the kinetic energy of the oil is converted into the kinetic energy of the turbine, thereby driving the output shaft to rotate. [0003] When starting, the rotational speed of the fluid coupling gradually increases, and the oil in the auxiliary chamber is sucked into the working space under the action of centrifugal force. During this process, the transmission efficiency gradually increases until it reaches the rated ro...

AI Technical Summary

Problems solved by technology

However, since the increase of oil temperature is also affected by heat dissipation, this protection measure lacks consistency and reduces the protection effect.

[0004] Secondly, because the load of the pump wheel is reduced by fuel injection, the hydraulic coupling needs to be repaired before it can continue to be used after being triggered. In electromechanical applications, there are many scenarios that are only short-term overload operation, and each overload Need to fix interrupt workflow and reduce work efficiency

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