摘要:
A large cylindrical baler is equipped with a bale control device coupled to fixed forward side wall sections of the baling chamber and being selectively operated such that front and rear bale control members of the device are respectively located behind and forward of a space into which a completed bale may be discharged, with the rear bale control member engaging a discharged bale so as to halt the rolling inertia imparted to the bale during discharge, the front and rear bale control members thus cooperating for locating the bale at rest. Once the bale is at rest, the rear bale control member is moved to a bale-clearing position wherein the rear bale control member may move forwardly relative to the bale without coming into contact with the bale.
摘要:
A round baler has an overshot secondary rotor located behind an undershot precutter rotor. The round baler has a relatively wide swath crop pick-up and a baling chamber with a significantly more narrow inlet. The precutter rotor has a central region supporting a plurality of rotatable crop conveying members interleaved by both a set of relatively fixed cutting blades and a set of relatively fixed strippers for urging cut crop away from the rotor, and end regions supporting rotatable helically disposed bands for receiving wide swath crop from the pick-up arrangement and urging the received crop toward the central region. The secondary rotor creates an S-shaped or serpentine crop path with minimal dead space and is a positive feeder for bale starting. Stationary strippers for the secondary rotor prevent crop from exiting the baler behind the secondary rotor.
摘要:
The baling chamber of one type of round baler is defined by belts which are trained over rolls connected to a drive. Stones can enter the nip formed between the belts and some of the rolls, e.g., a lower front belt driving roll, and thereby cause poor tracking of the belts. To reduce the problem, a shield device is snap-fit mounted on the roll. The device includes a nip bridging plate an upright portion of which abuts the belt run advancing to the nip and a downwardly sloping lower portion of which bridges the nip. Thus the device covers the nip preventing access to it by the stones, and stones which fall upon it slide down the sloping portion of the plate eventually to find their way harmlessly to the ground.
摘要:
A mechanism for enveloping a large round bale with a surface wrap material such as plastic sheet or net includes a housing for holding a supply roll of the wrap material. The mechanism and, hence, the housing is mounted on the rear of a bale discharge gate. The housing includes a front wall, defined by an upright panel secured across the rear of the gate, and a bottom wall sloped upwardly and rearwardly relative to the front wall. The bottom wall and front wall converge toward a wrap material passage defined between a forward edge of the bottom wall and the front wall. The bottom wall is curved convexly upwardly between front and rear ends thereof, with the curvature and slope of the bottom wall being chosen such that a roll of wrap material resting on the bottom wall will become increasingly wedged against the front and bottom walls as the material is used and the weight and diameter of the roll decreases with the result that the braking force imposed on the roll will remain substantially constant no matter what the weight or size of the remaining roll.
摘要:
A bale wrapping mechanism for wrapping a large round bale with a wrap material such as plastic sheet material or net, is mounted to the rear of a bale discharge gate. Drive rolls are located rearwardly of the gate and are selectively drivable for dispensing wrap material onto the rear end of a guide pan extending beneath and engaged with a portion of bale-forming belts extending between lower rear and lower front belt support rolls carried by the discharge gate. A guide finger assembly is secured to the front of the pan and includes a plurality of fingers located in gaps between the bale-forming belts and including forward end portions curved arcuately about the lower front belt support roll for directing wrap material about the roll and into a pinch point defined between the belts and a bale desired to be wrapped by the material.
摘要:
This cylindrical bale-forming press comprises sets of belts, bands or the like which define a chamber for forming a bale by rolling up crop products. At least one stationary roller drives the belts and is itself driven from a main drive shaft. Some of the guide rollers are movable and are subjected to a biasing action by hydraulic cylinders so as to maintain the belts under tension. According to the invention, a torque sensor is provided on the main drive shaft of the press and operates to provide an electrical output signal which is operatively connected to electrically responsive valve means in the hydraulic circuitry for controlling the hydraulic cylinders so as to reduce or eliminate the tension in the belts when an excessive resisting torque on the main driving shaft is sensed. In one embodiment wherein the hydraulic cylinders are associated with an expansion valve, the torque sensor is operatively connected to the expansion valve so as to lower the threshold of response of the valve in response to an excessive torque being sensed. According to a variant, an electrically responsive shunt valve which is movable to a position wherein it interconnects the opposite ends of the hydraulic cylinders may be connected in parallel with the hydraulic cylinders for actuation in response to the output signal of the torque sensor.
摘要:
A baling machine, towed by a tractor, for forming large cylindrical bales of hay has a baling chamber defined by oppositely moving runs of belts trained over rolls.In order to avoid stray hay wrapping around the ends of a roll and then being ingested in bearings supporting the ends of the roll, an anti-wrap assembly is provided at each end of the roll. The assemblies each comprise a spiral which is welded to the roll and which moves the stray crop away from the end of the roll, and a scraper mounted so as to have an edge thereof located very close to or in light contact with the spiral for preventing the crop from being carried around the roll by the spiral.
摘要:
A large round baler includes mechanism for optionally wrapping a bale with either twine or a surface wrap material. A wrap control mechanism includes means whereby the wrapping process is initiated in response to a bale reaching a desired diameter within the bale chamber. Various microswitches are strategically mounted so as to be operated by various components of the twine and surface wrap mechanisms and the control mechanism therefor. These switches are integrated into an indicator circuit including indicator devices including various colored lights and a buzzer all of which are caused to operate in various modes to apprise an operator of when the wrapping process is beginning, whether or not twine or surface wrap material is present, when wrapping is complete and when the surface wrap material has been severed.
摘要:
A wrap material spreader roll includes a smooth, cylindrical tube having spiral flights at opposite end portions thereof formed from spirally wound wires of circular cross-section, the wires having respective inner ends defined by a radially inwardly projecting portion which is received in a respective hole provided in the tube. The spreader roll is mounted to opposite support walls by respective bolts having hexagonal heads received in hexagonal bores provided in the inner races of a pair of roller bearings that are pressed into the opposite ends of the tube, the bolts having respective threaded stems received in keyhole-shaped holes provided in the walls and having nuts received thereon.
摘要:
A mechanism for enveloping a large round bale with a surface wrap material such as plastic sheet or net includes a housing for holding a supply roll of the wrap material. The mechanism and, hence, the housing is mounted on the rear of a bale discharge gate. The housing includes a front wall defined by an upright panel secured across the rear of the gate and having an upper end portion projecting rearwardly and downwardly and a bottom wall spaced below the upper end portion of and being sloped upwardly and rearwardly relative to the front wall. The housing also includes a cover which is vertically pivotally mounted to a pair of brakets located just beneath the upper end portion of the front wall, the cover having a top wall having a forward edge portion which seals against the bottom of the upper end portion of the front wall when the cover is in a closed position. A pair of gas springs are connected between the cover and the brackets and have their line of action disposed relative to the pivot axis of the cover such that the cover is respectively biased to its closed and open positions when placed in these positions with the springs going over center as the cover is moved between the positions.