Water-cooled magnetorheological soft start device

Abstract

The invention discloses a water-cooled magnetorheological soft start device, and belongs to the technical field of mechanical power transmission. The device comprises a drive rotator structure and a driven rotator structure, wherein a plurality of drive cylinders and driven cylinders are respectively plugged on drive cylinder sleeves and driven cylinder sleeves at intervals; the drive cylinder sleeves and the driven cylinder sleeves are respectively connected with left magnet-conducting shaft sleeves, right left magnet-conducting shaft sleeves, drive shafts and driven shafts through bolts; a sealing measure is arranged at each connection position; left magnetic yokes and right magnetic yokes are fixed with a magnet-conducting shell; magnet exciting coils and magnetic isolation discs are arranged in the left magnetic yokes and the left magnetic yokes; left bearing seats and right bearing seats are respectively fixed on outer sides of the left magnetic yokes and the left magnetic yokes;left bearings and right bearings used for bearing the drive shafts and the driven shafts are respectively arranged in the left bearing seats and the right bearing seats; a water inlet, a water outlet, a groove, a liquid injecting opening and a liquid discharging opening are formed in the magnet-conducting shell; a liquid injecting plug screw and a liquid discharging plug screw are arranged on theliquid injecting opening and the liquid discharging opening; and a plurality of groups of rotating sealing rings are arranged in the groove. The water-cooled magnetorheological soft start device has the advantages of compact structure, large transmission torque, high radiating performance, high slip frequency power and wide slip frequency range.

Description

technical field [0001] The invention relates to a water-cooled magneto-rheological soft starter, which belongs to the technical field of mechanical power transmission. Background technique [0002] The mechanical system is prone to mechanical shock when it is started, which affects the service life of the system. Soft start means that the mechanical system gradually overcomes the inertia of the entire system at a reasonable speed under normal working conditions and starts smoothly. At present, the ideal soft start device is a liquid viscous speed-regulating clutch, which uses the shear force of the oil film between multiple friction discs to transmit power, and realizes stepless speed regulation by changing the thickness of the oil film. It has compact structure and controllable performance. Good and high transmission efficiency. However, its starting current is large, heat generation is serious, the life of the friction plate is short, the system is complicated, and the m...

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Problems solved by technology

Foreign patents: U.S.Pentent 5896965 announced a single-disc magnetorheological clutch, which uses the good rheological effect of magnetorheological fluid to realize intelligent control of torque transmission, but it is only suitable for small torque transmission occasions; U.S.Pentent 5823309 announced A multi-disc magneto-rheological clutch, which can transmit relatively large torque by using a multi-disc structure, but it has a large calorific value, poor heat dissipation performance, and narrow slip range; domestic patent: CN1648483A discloses a magneto-rheological softening The starting device adopts a new type of heat pipe heat dissipation method, which has good heat dissipation performance and large slip power, but the transmission power is small; CN101915277A introduces a single-plate three-disk magneto-rheological clutch, which combines two types of disc type and cylinder type Working mode, with three effective working channels, can give full play to the magnetorheological effect, has the characteristics of simple structure, low power consumption, large transmission torque, etc., but its heat dissipation performance is poor, and the slip power is small

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