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本发明属于轴与轮壳之间连接采用液压扩张的摩擦联轴节。它由两个同心的圆柱轴套所组成,在这轴套之间的液压介质是密封的。为了在轴与轮壳之间传递预定的扭矩,挤压轴套的液压介质的压力可以调节。从英国专利No103724g得知这类的摩擦联轴节。但这类摩擦联轴节的缺点是当联轴节超载时,大多数情况是在内轴套与轴之间发生滑动,因此轴就可能被损坏。如该情况发生在电动机轴上,会导致昂贵的维修费。
The invention belongs to a friction coupling with hydraulic expansion connected between a shaft and a wheel shell. It consists of two concentric cylindrical sleeves, where the hydraulic medium between the sleeves is hermetically sealed. In order to transmit a predetermined torque between the shaft and the wheel housing, the pressure of the hydraulic medium that presses the bushing can be adjusted. This type of friction coupling is known from British Patent No. 103724g. However, this type of friction coupling has the disadvantage that when the coupling is overloaded, the shaft slips between the inner sleeve and the shaft in most cases and the shaft may be damaged. If this happens to the motor shaft, it can lead to expensive maintenance costs.