Tractor plough lifting sensing device

The utility model relates to the technical field of farm machinery, and discloses a tractor plough lifting sensing device. The tractor plough lifting sensing device comprises a lifting arm, a connection unit, an angle sensor, a transmission unit, a sensor support and an installation plate, wherein the installation plate is connected with a tractor rear axle housing, the sensor support is arranged on the installation plate, the transmission unit and the angle sensor are arranged on the sensor support, the lifting arm can drive the connection unit to rotate, the transmission unit is connected with the connection unit, and the angle sensor rotates through the transmission unit. The tractor plough lifting sensing device drives the angle sensor to rotate through the transmission unit, reliably and effectively transmits rotation angle signals of a lifting shaft to a plough lifting position sensing device, can be used on different suspension devices only by changing connection holes of the installation plate and the tractor rear axle housing, and has the advantages of being high in accuracy, simple in structure, convenient to install, small in occupied space, and good in universality.