Hydraulic control system for viscosity speed regulation clutch

Abstract

The invention discloses to a new hydraulic-control system applied in air fan, pump or hydro vicious speed governing clutch of soft-starting in other larger scale equipment. Hydraulic oil in oil tank 2 is used to lubricate, cool and transmit torque to positive frictional plate 28 and negative friction plate 28'through outlet pipe 21 of heat exchange of heat pipe 22, pump with lubricated oil 19, inlet of positive shaft 16 of clutch host by oil pipe 17; another oil is used to connect positive frictional plate 28 and negative friction plate 28'through oil delivery pipe 20, controlling oil pump 8, finish filter 12 and the inlet of negative shaft 15 by oil pipe 14. When adjusting speed, only setting speed value of controller 13 is changed. Controller 13 controls converter 6 and motor 7 to adjust speed and then oil pressure on inlet of negative 15 is changed.

Description

technical field [0001] The invention relates to a hydraulic control system, in particular to a hydraulic control system which can be used for a fluid-viscous speed-regulating clutch connected with a high-speed rotary working machine in equipment such as fans and water pumps. Background technique [0002] The hydraulic viscous speed regulating clutch is composed of a speed regulating host and a hydraulic control system. Its structure is usually: a part of the high-temperature hydraulic oil in the oil tank is sucked by the lubricating oil pump and discharged into the cooler after oil filtration, and the cooled oil is then sent to the cooler. The drive shaft end of the speed-regulating main engine is lubricated for the friction plate to cool the friction plate, and the other part of the high-temperature hydraulic oil is absorbed by the control oil pump after the oil filter and discharged into the essential oil filter, and then returned to the oil tank through the electro-hydraul...

AI Technical Summary

Problems solved by technology

[0003] ①High-temperature hydraulic oil carries too many pollutants (mainly wear debris) during operation, which often causes blockage of the essential oil filter and electro-hydraulic proportional overflow valve, affecting the normal operation of the hydraulic-viscous speed-regulating clutch

[0004] ②The traditional oil cooler used has low compressive strength and is connected to the outlet of the lubricating oil pump. When the oil pressure or cooling water pressure rises, it is easy to break through the metal heat exchange surface of the cooler, resulting in liquid viscosity adjustment. Accident of mixing oil and water in high-speed clutch

[0005] ③Because the cooler is connected to the outlet of the lubricating oil pump, when the lubricating oil pump sucks high-temperature oil, its working efficiency is reduced, the working environment is poor, and even the motor connected to the lubricating oil pump is burned out;

[0006] ④The currently used cooler is large in size and occupies a large area, and can only be installed separately from the fuel tank body. The cooler and the fuel tank body need to be connected by pipes, which is not beautiful, and is not conducive to operation and maintenance Operation;

[0007] ⑤The existing cooler has a large resistance loss, low thermal efficiency, and the scale is not easy to clean

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