摘要:
An apparatus and method of moving a mobile tower using solar power are disclosed for use with an irrigation system. The disclosed improvement includes a solar panel with a collecting surface to convert light energy to electrical energy, an electrical charge source in communication with the solar panel to receive electrical energy, and a motor to drive a ground-engaging wheel in communication with the electrical charge source. The improvement also includes a direction control system for regulating rotation of the solar panel and a tilt assembly for adjusting the angle of the solar panel to maintain the disposition of the collecting surface in alignment with the direction of incoming sunlight. The method of moving the mobile tower includes collecting light energy with a solar panel, converting the light energy into electrical energy, and driving a wheel of the mobile tower with a motor powered by the converted electrical energy.
摘要:
An irrigation system includes a central pivot and a series of mobile towers connected to the central pivot and to one another by support structure. Each mobile tower has wheels and a motor for driving at least one of the wheels. A control system operates the motors to maintain alignment of the mobile towers and the central pivot while preventing power usage of the system from exceeding a maximum power threshold. The control system determines in which sequence to operate the motors to maintain alignment of the mobile towers while operating no more than a selected number of the motors simultaneously.
摘要:
A track assembly for a mobile tower of an irrigation system includes: a mounting bracket configured to be attached to the mobile tower; a gearbox assembly and rotatable drive wheel hub attached to the mounting bracket; a drive wheel attached to the drive hub; rotatable tension wheel hub attached to the mounting bracket and spaced from the drive hub; a tension wheel attached to the tension wheel hub; and a track trained over the drive wheel and the tension wheel and driven by the drive wheel to propel the mobile tower.
摘要:
A bearing structure for a pivoting irrigation system apparatus having a rotatable vertical section with a plurality of annular assemblies mounted thereon. The assemblies include a plurality of components that are rotatable and non-rotatable with the rotatable vertical section so as to facilitate movement with decreased friction therebetween.
摘要:
To allow for optimal uniform application of irrigation fluid in a field space outfitted with a center pivot irrigation machine having a main pipeline and an auxiliary or corner pipeline, the auxiliary pipeline is operable to both lead and lag the main pipeline as the main pipeline makes a progressive rotation in a single direction through the field space. In one embodiment a control system for the irrigation machine comprises a buried cable control system. In another embodiment a control system comprises a global positioning satellite control system. In a third embodiment a control system comprises at least two position sensing devices, a first device for sensing an angle of the main pipeline with respect to a center tower and a second device for sensing an angle between the main pipeline and the auxiliary pipeline, and a speed controlling device for controlling a speed of rotation of the main and auxiliary pipelines.
摘要:
An alignment unit for use with an irrigation system comprises a housing, an alignment sensor, an alignment controller, and an actuator. The irrigation system may include a plurality of spans, each including a drive tower and a drive unit. The housing may house at least a portion of the alignment unit. The alignment sensor may measure a real-time alignment of the drive tower. The alignment controller may be in communication with the alignment sensor and may be operable to receive the real-time alignment of the drive tower and energize the drive unit based on a first range of real-time alignment values. The actuator may couple with the alignment controller and may reorient at least a portion of the alignment controller in relation to the alignment sensor.
摘要:
A corner unit guidance control system for use with a corner unit that is part of a center pivot irrigation system includes an antenna, a receiver, and a controller. The antenna may be located along a vertical axis through the center of a wheel of the corner unit and may be operable to receive signals from at least one external positional information source. The receiver may be in communication with the antenna and operable to process the signals to produce position data corresponding to a current position of the wheel. The controller may be in communication with the receiver and may be programmed to steer the wheel to a heading corresponding to a difference between the current position of the wheel and a point along the path.
摘要:
An irrigation system and method for irrigating a field including a plurality of towers linked together by at least one rotatable torque tube. Each of the towers may comprise a frame, one or more wheels on which the frame may travel, a rotatable reel, and a line configured to be spooled onto the reel. A motor may be configured to rotate the torque tube, which may in turn actuate each of the reels to rotate simultaneously. One end of each of the lines may be anchored at a first location and the towers may be located at a second location. Rotation of the reels spools the lines onto the reels and thereby actuates the towers to travel from the second location to the first location. The irrigation system also comprises hoses to link one or more fluid-emitting devices positioned on each of the towers with a water source.
摘要:
An apparatus and method of moving a mobile tower using wind energy are disclosed for use with an irrigation system. The disclosed improvement includes a rotor assembly operable to be rotated by the movement of passing air, a generator of electrical energy driven by the rotation of the rotor assembly, an electrical charge source in communication with the generator, and a motor to drive a ground-engaging wheel in communication with the electrical charge source. The method of moving the mobile tower includes rotating wind-receiving elements of a rotor assembly with wind energy in passing air, generating electrical energy from the wind energy, and driving a wheel of the mobile tower with a motor powered by the generated electrical energy.
摘要:
An apparatus is disclosed for connecting truss rods and other rigid braces of an irrigation system, wherein the rods include shaft sections with enlarged cylindrical heads at the ends thereof and form part of a truss-type framework supporting a conduit. A coupling assembly for holding a pair of such truss rods together in axial alignment is disclosed and includes a top plate and a bottom plate clamped together with a connecting bolt having a non-circular collar. The collar on the bolt cooperates with similarly shaped holes in the plates of the coupling assembly to prevent relative rotation between the plates and also between the bolt and the coupling assembly. The bolt includes a head with a hexagonal drive recess for use with an appropriate driving tool.