FIELD: machine building.
SUBSTANCE: invention relates to hydraulic drives of tilting a platform and driving a wheel turn of heavy haulers. Hydraulic drive of a vehicle tilting mechanism comprises hydraulic cylinders for lifting and lowering the platform connected with pumps and an oil tank via an on/off control valve controlled by an electromagnetic hydraulic control valve with an electric control system. Control system comprises a sensor of the platform position with a controlled switch binding the platform lowering electromagnet with the switch of the vehicle electric drive control via diodes and relays. Through normally closed relay contacts the platform lifting electromagnet is introduced. Relay coil is connected to the platform lowering electromagnet. Parallel to the electromagnet an electric capacity is connected. In the electric control system of the electromagnetic hydraulic control valve in series with the normally closed relay contact there is the second button to switch on the platform lifting electromagnet. One of the button contacts is connected to potential output of the electromagnet winding.
EFFECT: provided is higher safety of the vehicle movement.
1 cl, 2 dwg
Title | Year | Author | Number |
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Authors
Dates
2016-12-27—Published
2015-04-03—Filed