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134results about How to "Easy to maneuver" patented technology

Electric suspension control device of tractor

The invention relates to an electric suspension control device of a tractor. The electric suspension control device of the tractor comprises a controller, a control panel, a direct-current motor, an angle sensor, a travel switch, a force sensor, a wheel speed sensor, a radar speed measurement sensor, a cylindrical gear reducing mechanism, a worm and gear reducing mechanism, a lifting arm and suspension rod pieces. The controller is installed below an instrument desk and is connected with the control panel, the angle sensor, the travel switch, the force sensor, the wheel speed sensor, the radar speed measurement sensor and the direct-current motor through cables; the direct-current motor is installed on the front side of a lifter shell, a motor shaft is connected with a driving gear shaft of the cylindrical gear reducing mechanism through a spline housing, and the lifting arm is connected with a worm-wheel shaft; the angle sensor is connected with a machine body shell and the worm-wheel shaft through a connecting plate and an elastic coupling respectively; the force sensor is connected with an upper pull rod and a lower pull rod through force measuring pins; the wheel speed sensor is installed on the machine body shell; the radar speed measurement sensor is installed at the front end of the tractor. The electric suspension control device of the tractor has the three control modes of tilling depth control, driving force control and wheelspin control, lifting of farm implements can be intelligently controlled according to soil conditions and actual working conditions, and breakdowns can be diagnosed and monitored in real time. The electric suspension control device of the tractor can be intelligently operated, save labor, save energy and protect the environment.
Owner:YANCHENG YANHAI TRACTOR MFG

Target guiding radar with continuous waves

The invention discloses a target guiding radar with continuous waves. The target guiding radar with the continuous waves comprises transmitting antenna and receiving antenna, a high frequency electronic unit, a luffing mechanism, an azimuth driving mechanism, a low frequency electronic unit and a computer. The middle portion on the back of antenna array is fixedly connected with the high frequency electronic unit. The high frequency electronic unit is arranged on the luffing mechanism. The luffing mechanism is connected with the azimuth driving mechanism. The integration which is composed of the antenna array, the high frequency electronic unit and the luffing mechanism are driven by the azimuth driving mechanism to move along with the luffing mechanism. A transmitter is respectively connected with a frequency synthesizer and the transmitting antenna through a signal cable. A receiver is respectively connected with the frequency synthesizer, the receiving antenna and a signal processor through the signal cable. The antenna adopts array antenna, and the receiving antenna can receive three different direction luffing beams. The receiver respectively amplifies and filters a target echo through three routes. Due to the fact that the receiver produces a middle frequency signal in an intermediate frequency sampling working way, three-coordinates measuring to an aerial target is achieved.
Owner:TIANWEI ELECTRONICS SYST ENG

Four-wing unmanned aerial vehicle and control method thereof

InactiveCN104401485AIncrease lift thrustLift thrust boostRotocraftFlight vehicleElectric machinery
The invention discloses a four-wing unmanned aerial vehicle and belongs to the field of special aircrafts. The four-wing unmanned aerial vehicle includes a vehicle body, wings and a landing gear. The landing gear is fixedly connected to the vehicle body. The wings include front wings and back wings, wherein both the front wings and the back wings are vertically crossed with and fixedly connected to the vehicle body. Both the front wings and the back wings are respectively provided with two transverse-flow wind wheels. Each two transverse-flow wind wheels are arranged respectively at the two sides of the vehicle body. Each transverse-flow wind wheel is driven by an individual driving motor. By means of arrangement of the four transverse-flow wind wheels on the vehicle body, a lifting and pushing force of the aerial vehicle is enhanced so that a loading performance of the aerial vehicle is enhanced. By means of the individual driving motors for respectively driving the rotational speeds of the four transverse-flow wind wheels to carrying out flight control without operation of a control surface, the aerial vehicle is enhanced in maneuverability so that the aerial vehicle can adapt various complex flying environments better. The invention also discloses a control method of the four-wing unmanned aerial vehicle.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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