摘要:
A large round baler includes a plurality of bale-forming rolls which each have opposite ends defined by stub shafts rotatably supported in respective bearings fixed to opposite side walls of the bale chamber. The rolls are each in the form of a hollow cylindrical drum and each stub shaft includes a flange having a diameter corresponding to the inside diameter of the drum and being secured to the drum at a location spaced inwardly from an end face of the drum. For preventing crop particles and juices from reaching each bearing, a ring-like seal body is fixed to the outer surface of the flange in concentric relationship to the stub shaft and to, and between, a cylindrical sealing surface of a collar that is fixed to the wall and a ring that is also fixed to the wall. The seal body has a plurality of radially outward projecting lips disposed very close to the sealing surface of the collar and a single radially inward projecting lip disposed very close to the ring.
摘要:
The agricultural harvesting machine having a crop picking head includes a pickup conveyer which can be driven so as to pick up the harvested crop at a first adjustable speed, a discharge conveyer which can be driven so as to receive the harvested crop picked up by the pickup conveyer, transport the harvested crop, and discharge the harvested crop at a second adjustable speed, and a feed-in conveyer disposed in a feed-in channel of the harvesting machine that can be driven so as to receive the harvested crop from the discharge conveyer, transport the harvested crop, and discharge the harvested crop to a harvested crop processing unit at a third adjustable speed. The third speed and the first speed are independent of one another, and the second speed is defined by the first and third speeds and falls in a range between the first and third speeds.
摘要:
A harvesting machine includes a crop intake arrangement including either a reel or a crop hold down which operate to aid in the advancement of harvested crop into the machine for further processing. In the event of a jam or the presence of metal occurring, the crop intake arrangement may be operated in reverse so as to expel the jam and/or sensed metal. An actuator is provided for moving the reel or crop hold down between non-operating and operating positions and a first sensor for sensing a jam condition and/or the presence of metal is provided which sends a signal when such a condition exists, this signal being used to effect automatic operation of said actuator so as to move the reel or hold down to a non-operating position so as not to interfere with the expulsion of the jam and/or metal. Other controls are provided and other parameters are sensed for delaying and/or overriding the automatic positioning of the reel or crop hold down in their non-operating position. One such parameter is provided by a timing device which prevents automatic positioning of the reel or crop hold down when the signal indicating a jam or the presence of metal does not endure for a pre-selected time interval. Another parameter is provided by a sensing device which determines whether or not the machine is traveling in the forward direction. If it is, after a jam or the presence of metal is sensed, then a signal is issued which causes the reel and/or hold down to be returned to its operating position.
摘要:
Disclosed is a sensor for detecting the presence of a crop flow in a harvesting machine. The sensor is designed to emit an output signal containing information on whether crop material is passing through the harvesting machine or not. It is suggested that the sensor be designed to detect vibrations produced during the processing and/or transporting of the crop flow in the harvesting machine. Such a sensor is especially suitable for use with arrangements for calculating the area from which crop is being harvested and for mapping yields.
摘要:
A chopper drum includes a plurality of knives distributed along its width and about its circumference. A grinding device is provided for automatically sharpening the knives, with a grinding stone of the grinding device having its movement automatically controlled by a microprocessor, which receives signals from an actual shape sensor and compares it with a stored desired shape and generates control signals, such that it shapes the profile of the chopper drum to at least approximate the desired shape.
摘要:
The invention concerns an arrangement for the adjustment of the position of a shearbar with respect to knives of a chopper assembly. The arrangement includes a first adjusting drive to position the first end of the shearbar at a predetermined first spacing from the knives and a second adjusting drive to position the second end of the shearbar with respect to the knives until a spacing measurement arrangement indicates that the spacing between the shearbar and the knives is less than a threshold value. An analogous procedure is applied to the first adjusting drive. On the basis of the measurement values the shearbar is brought into a position that corresponds to a desired gap between the shearbar and the knives. Each of the first spacing and the second spacing are greater than the desired gap between the shearbar and the knives.
摘要:
A self-propelled forage harvester includes an overload clutch inserted into the driveline of a crop conveying element of crop pick-up arrangement of the harvesting machine. The overload clutch generates acoustic and/or mechanical vibrations when a defined torque is exceeded, and a knock sensor is provided for sensing when the overload clutch is operating in an overloaded condition. The knock sensor sends a signal to a control arrangement including a signal processor which recognizes a vibration pattern representative of an overload, and in response to such a pattern, sends a control signal for shutting off the drive to various driven components of the harvester.
摘要:
A device is provided for tucking or inserting the free end portion a length of twine, just severed from a supply roll, under one or more wraps of the length of twine extending about the circumference of a bale located in a bale chamber of a large round baler.
摘要:
A self-propelled harvesting machine having an internal combustion engine, a propulsion system that can be operated to cause the harvesting machine to move across a field with a propulsion speed, a crop material pick-up device for picking up the crop material from a field, a crop material processing device for processing the crop material that has been picked up, a control unit for specifying the speed of the internal combustion engine, and a through-put measurement device for determining the through-put of the harvesting machine. The control unit can be operated to vary the speed of the internal combustion engine depending on the signal from the through-put measurement device. In this manner the RPM of the internal combustion engine that is most favorable in terms of fuel consumption and that corresponds to the power to be applied at a given through-put can be specified.
摘要:
A self-propelled harvesting machine having an internal combustion engine, a propulsion system that can be operated to cause the harvesting machine to move across a field with a propulsion speed, a crop material pick-up device for picking up the crop material from a field, a crop material processing device for processing the crop material that has been picked up, a control unit for specifying the speed of the internal combustion engine, and a through-put measurement device for determining the through-put of the harvesting machine. The control unit can be operated to vary the speed of the internal combustion engine depending on the signal from the through-put measurement device. In this manner the RPM of the internal combustion engine that is most favorable in terms of fuel consumption and that corresponds to the power to be applied at a given through-put can be specified.