WO1985003407A1 - Equipement d'epandage - Google Patents

Equipement d'epandage Download PDF

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Publication number
WO1985003407A1
WO1985003407A1 PCT/NL1985/000007 NL8500007W WO8503407A1 WO 1985003407 A1 WO1985003407 A1 WO 1985003407A1 NL 8500007 W NL8500007 W NL 8500007W WO 8503407 A1 WO8503407 A1 WO 8503407A1
Authority
WO
WIPO (PCT)
Prior art keywords
equipment
spreader
carrier
arm
transport
Prior art date
Application number
PCT/NL1985/000007
Other languages
English (en)
Inventor
Ary Van Der Lely
Cornelis Johannes Gerardus Bom
Original Assignee
C. Van Der Lely N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from NL8403864A external-priority patent/NL8403864A/nl
Application filed by C. Van Der Lely N.V. filed Critical C. Van Der Lely N.V.
Priority to GB08523574A priority Critical patent/GB2163033B/en
Publication of WO1985003407A1 publication Critical patent/WO1985003407A1/fr
Priority to DK448785A priority patent/DK448785A/da

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C15/00—Fertiliser distributors
    • A01C15/003—Bulk fertiliser or grain handling in the field or on the farm
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C17/00—Fertilisers or seeders with centrifugal wheels
    • A01C17/001—Centrifugal throwing devices with a vertical axis

Definitions

  • This invention relates to equipment for spreading material, particularly, although not exclusively, granular and/or powdery material such as fertilizer, comprising a carrier provided with a container for the material, the carrier comprising coupling means for receiving a spreader having a distribution member for distributing the material during operation of the equipment.
  • One object of the invention is to improve such equipment so that the material can be advantageously spread under several different conditions.
  • the coupling means comprises an adjusting member for positioning the spreader optionally in any one of at least two working positions at different vertical levels with respect to the carrier, a transport member being provided for transporting material from the hopper to the spreader in any working position of the spreader with respect to the carrier during operation of the equipment.
  • the equipment can be used for distributing fertilizer on agricultural soil where crop has not yet emerged from the ground, whereas with the spreader at a higher working position the equipment can be used for spreading material when plants have already grown to some height above the ground.
  • the equipment is particularly suitable for spreading material at high surface densitities for covering large surfaces with material.
  • the coupling means comprises at least one carrying arm arranged pivotally on the carrier, to which arm the spreader can be coupled.
  • the carrying arm can be optionally set in any one of at least two different positions by the adjusting member to achieve the different working positions of the spreader with respect to the carrier.
  • the carrying and supporting arms of bell-crank levers are relatively positioned and the adjusting member is connected with the support ⁇ ing arm of the bell-crank level in a manner such that the moment arm from the fulcrum of the bell-crank levers to the centre of gravity of the spreader and the moment arm from the fulcrum to the line of action of the adjusting member change mutually when the bell-crank leve-r is turned in a manner such that the force applied to the adjusting member remains substantially unchanged as the working position of the spreader is altered.
  • the adjust- ing member can be advantageously used for providing an indication of the quantity of material in a delivery trough of the spreader.
  • the adjusting member is coupled with driving means for the transport member.
  • This enables the force exerted by .the spreader, and the material contained in the delivery trough, on the adjusting member to be used to provide an indication to the driving means of the transport member for starting cr stopping the driving means in a manner such that the delivery trough remains filled with material at least within a desired minimum and maximum range.
  • the material is conveyed by the tranport member from the hopper to the delivery trough.
  • the adjusting member can be coupled ° a- spring-loaded rocking arm, which is coupled to a switching mechanism for actuating a control valve of a hydraulic mechanism comprising a hydraulic motor constituting the driving means of the transport member. In this way equipment is obtained, which operates reliably.
  • the spreader comprises a tilting mechanism by which at least the distribution member of the spreader can be tilted in a direction trans ⁇ versely of the normal direction of operative travel of the equipment.
  • the material can then be advantage- ously spread along the edges of a surface to be covered.
  • Equipment embodying the present invention operates particularly advantageously when the spreader is provided with two distribution members which are constructed and arranged in the spreading device in a manner such that they distribute the material on the same strips of land during operation.
  • Figure 1 is a side elevation of spreading equipment comprising a carrier and a spreader
  • Figure 2 is a rear view of the carrier with the spreader removed;
  • Figure 3 is an enlarged view of part of the equipment, with the spreader in an elevated position
  • Figure 4 is a fragmentary view taken in the direction of the arrow IV in Figure 1;
  • Figure 5 is an enlarged fragmentary sectional view of the lower portion of a transport member and a hopper provided on the carrier;
  • Figure 6 is a view taken in the direction of the arrow VI in Figure 5;
  • Figure 7 is a view on a reduced scale of the equipment taken in the direction of the arrow VII in Figure 1, the spreader being tilted with respect to the carrier;
  • Figure 8 is a fragmentary view showing an alterna ⁇ tive construction for apart of the carrier;
  • FIG. 9 corresponds to Figure 5 but shows an alternative construction
  • Figure 10 is a side view of an alternative form of carrier
  • Figure 11 is a fragmentary view taken on the line XI-XI in figure 10;
  • Figure 12 is a view taken in the direction of the arrow XII in Figure 11, and
  • Figure 13 is a circuit diagram representing the hydraulic control means of the equipment.
  • the equipment 1 shown in the Figures comprises a carrier 2 and a spreader 3.
  • the carrier 2 has a carrying frame 6 comprising two horizontal frame beams 7.
  • the beams 7 are interconnected at. their rear ends by a rear beam 8 and at a position midway along their length by an intermediate beam 9.
  • the parts of the frame beam between the beam 8 and the beam 9 are parallel , to one another, but ahead of the beam 9 the beams 7 converge towards the front, where they are interconnected by coupling plates 10.
  • a coupling hook 11 can be fastened to the coupling plates 10 at any one of several points at different heights.
  • the carrier 2 comprises two supporting means such as the ground wheels 12, which are mounted on axles 13 fastened to the rear beam 8.
  • the wheel axles 13 are connected by means of clamping arrangements 14 to the ends of the rear beam 8.
  • the wheel axles 13 are furthermore fastened by bolts 15 to plates 16 secured to the rear beam 8.
  • the frame beams 7 are provided with a carrying support 19 in the form of plates, on which a container 20 is mounted.
  • the container 20 is provided with an extension piece 21.
  • the hopper 20 has downwardly convergent inclined sidewalls 22.
  • the hopper 20 also has an inclined front and rear walls 23 and 24, the sl ⁇ s of the front wall 23 being less steep than that of the rear wall 24.
  • the walls 23 and 24 also converge downwardly.
  • the lower edges of the walls 22 to 24 form an opening around which extends the top of a delivery funnel 25.
  • the delivery funnel 25 has an outlet opening 26 which opens into a support ⁇ ing cylinder 27.
  • the delivery funnel 25 and the support ⁇ ing cylinder 27 are integral with each other.
  • the supporting cylinder 27 is provided with a fastening plate 28 which is secured by bolts 31 to a fastening framework 29 rigidly secured to the rear wall 24 of the hopper 20.
  • the lower ends of the walls 22 to 24 are provided on the outside of the hopper with a supporting band 30, around which the top of the delivery funnel 25 fits.
  • the supporting cylinder 27 has a bottom wall 33, in which a rotatable supporting pin 32 is journalled.
  • the carrier 2 is provided with a transport member 36.
  • the transport member 36 is provided near the rear wall 24 .
  • 36 comprises an auger having a transport cylinder
  • the auger 36 is provided with a hydraulic motor 43, which is mounted on the cylinder 37.
  • the motor 43 is connected to a hydraulic control mechanism 52 by ducts 44 (not shown fully).
  • the cylinder 37 extending along and parallel to the wall 24, is supportedat a position some distance above the - cylinder 27 by a supporting sleeve 45.
  • This supporting sleeve 45 has lugs 50, which are fastened by a pin 49 to tongues 51 of a carrying bracket 46.
  • the carrying bracket 46 is fastened to the rear edge of one of the supports 19 and to fastening p ⁇ ' a tes 47 secured to the support 19.
  • the carrying bracket 46 is further ⁇ more connected by struts 48 to the support 19.
  • the carrier 2 is provided with a coupling mechanism 56 to which the spreader 3 can be hitched.
  • the coupling mechanism 56 comprises two bell-crank levers57 and
  • the pivotal shafts 59 and 60 are in line with each other and extend ho izontally transversely of the lengthwise direction of the equipment when the carrier is horizont ⁇ al.
  • the bell-crank levers 57 and 58 are identical and fully overlap one another as viewed from the side ( Figures 1 and 3).
  • Each bell-crank lever 57 and 58 comprises a carrying arm 61 and a supporting arm 62.
  • the ends of the supporting arms 62 away from the pivotal shafts 59 and 60 respectively are inter ⁇ connected by a coupling beam 63.
  • the coupling beam 63 is provided with a fastening lug 64 which is connected by an adjusting member 65 to the carrying frame 6.
  • the adjusting member 65 in this embodiment is a hydraulic mechanism comprising a cylinder 66 and a piston rod 67.
  • the cylinder 66 is pivotally connected by a pivotal pin 69 to lugs 68 which are rigidly secured to the frame 6.
  • the piston rod 67 is pivotally connected by a pivotal pin 70 to the fastening lug 64.
  • the ends of each carrying arm 61 away from the respective pivotal shaft 59,60 is provided with stiffening rings 71. These rings 71 and the ends of the carrying arms 61 have aligned holes 72.
  • the carrying bracket 46 is provided at the top with a pair of carrying lugs 73 with aligned holes 74, and with a pair of carrying lugs 75 with aligned holes 76.
  • the holes 74 and 76 are also aligned with each other.
  • the bracket 46 with the tongues 73 and 75, the bell-crank levers 57 and 58 and the adjusting member 65 together constitute the main parts of the coupling mechanism 56, to which the spreader 3 is hitched.
  • the spreader 3 comprises a frame 81, on which a delivery trough 82 is mounted.
  • the delivery trough 82 has two delivery funnels 85 and 86 disposed side by side in the transverse direction. Below each delivery funnel 85,86 there is a distribution member 83 and 84 respectively. Near the bottom of each delivery funnel 85 and 86 there is a dosing mechanism 146.
  • the dosing mechanisms (not shown in detail) have outlet ports which can be closed optionally to a greater or lesser extent by means of dosing slides.
  • the distribution members are rotatable about rotary axes (not shown) extending vertically upwards when the spreader is horizontal.
  • the delivery funnels 85 and 86, the frame 81 and the distribution members 83 and 84 are substantially symmetrical about the central vertical longitudinal plane 87 of the spreader 3.
  • the frame 81 comprises two upwardly extending frame beams 88 and 89 whi ⁇ n are vertical when the distribution members 83 and 84 are horizontal, the top ends of the frame beams 88 and 89 are interconnected by a horizontal beam (not shown) provided with a pair of lugs 90.
  • the lugs 90 can be coupled optionally to one or the other of the pairs of tongues 73 or 75 by means of a top rod 91, which is adjustable lengthwise.
  • the frame beam 88 is provided with coupling plates 92, situated one on each side of the beam 88, which are pivotable together about a pivotal shaft 93 with respect to the beam.
  • the coupling plates 92 have aligned holes 94 and aligned holes 95.
  • a stop pin 96 can be passed optionally through the holes 94 or 95.
  • the plates 92 are connected by a pivotal shaft 97 with a hydraulic mechanism 98, which is pivotally coupled to lugs 99 rigidly secured to the frame 81.
  • the plates 92 have aligned holes 100.
  • the outer end of the arm 61 of the bell-crank lever 57 can be secured between the plates 92 by a coupling pin 101 passed through the holes 100 and the hole 72 in the arm 61.
  • the vertical beam 89 is provided with plates (not shown) which a re rigidly secured, one on each side, to the beam 89.
  • the outer end of the arm 61 of the bell-crank lever 58 can be fitted between these plates and pivotally fastened to them by a coupling pin aligned with the coupling pin 101.
  • the top end of the cylinder 37 has a delivery opening 104.
  • the transport helix 38 extends up to the side of the delivery opening 104.
  • a flexible delivery hose 105 is connected to the delivery port 104.
  • a supporting ring 107 is held above the top of the trough 82 by arms 106.
  • the lower end of the delivery hose 105 fits in the ring 107 in a manner which permits relative movement between the hose 105 and the ring 107 in the lengthwise direction of the hose.
  • the adjusting member 65 is connected by a duct 114 (not shown fully) to a hydraulic control device 52, which can be connected to the hydraulic circuit of a tractor or other vehicle to which the equipment is coupled by means of the coupling hook 11.
  • the control device 52 is connected by a connection 11 to a gauge 110 situated near the front of the hopper 20.
  • the gauge 110 is connected by the control device 52 to the cylinder 66 of the adjusting member 65.
  • the gauge 110 has a needle 112, which is movable along a scale 113.
  • the distribution members 83 and 84 are coupled to each other by a transmission mechanism (not shown in detail) .
  • This transmission mechanism comprises an input shaft 116, which is connected by an auxiliary shaft 117 to a transmission shaft 118 journalled in a tube 119 extending through the hopper (20).
  • the shaft 118 is connected to a coupling shaft 120, which in turn can be connected to the power take-off shaft of a tractor or similar vehicle to which the equipment is hitched.
  • the ' equipment is hitched by the coupling hook 11 to a tractor or similar vehicle.
  • the coupling shaft 120 is connected to the power take-off shaft of the tractor, and the adjusting members 65, the motor 43 and the hydraulic adjusting member 98 are connected by the control device 52 to the hydraulic circuit of the tractor.
  • the equipment may be provided itself with a hydraulic circuit to which the various components can be connected through -the control device 52.
  • the distribution members 83 and 84 are driven by the shafts 117, 118 and 120.
  • the transmission from the input shaft 116 to the distribu ⁇ tion members 83 and 84 is such that, as viewed with respect to the normal direction 121 of operative travel of the equipment in normal operation, the distribution members 83 and 84 rotate in opposite senses with their regions of closest approach moving in the direction 121.
  • the distribution members are identical and substantially symmetrical about the plane 87.
  • the material to be spread can be fed from the hopper 20 by the auger 36 to the delivery trough 82. From the delivery trough 82 the material passes through the dosing mechanism 146 to the oppositely rotating distribution members 83 and 84. The rate of supply of material from the delivery trough 82 to the distribution members can be controlled by the dosing mechanisms 146 arranged between the delivery funnels 85 and 86 and the respective distribution members 83 and 84.
  • the spreader 3 shown in the Figures is designed so that the distribution members 83 and 84 each spread the material over a broad strip extending for the same distance to both sides of the plane 87 during normal operation.
  • the two distribution members 83 and 84 spread the material over the same strip of land during each run of the equipment over the field where the material, for example fertilizer, is to be spread.
  • the equipment may, as an alternative, have a spreader hitched to the coupling mechanism 56 in which one distribution member spreads the material mainly over one half of the overall width of the strip, and the other distribution member spreads the material mainly over the other half of the overall width of the strip during the same run.
  • the delivery trough 82 is filled from the hopper 20 by means of the auger 36.
  • the material flows through the delivery funnel 25 and the outlet opening 26 into the supporting cylinder 27. From the supporting cylinder 27 the transport helix 38 passes the material to the delivery mouth 104, whence it flows through thehose 105 into the trough 82.
  • the ring 107 supports the delivey hose 105 above the middle of the trough 82 so that the two delivery funnels 85 and 86 are equally filled.
  • the spreader 3 and hence the distribution members 83 and 84 can spread the material, as desired, at a greater or lesser distance above the ground.
  • the spreader is particularly suitable for sprsading fertilizer, seed or other material on agricultural soil.
  • the spreader 3 is shown in its position closest to the ground.
  • the distance 122 of the centres of the distribution members 83 and 84 above the ground is chosen so that the spreader need practically never be used below said value.
  • the distance 123 between the pivotal pins 69 and 70 is at a minimum, the rod 67 being completely retracted into the cylinder 66.
  • the bell-crank levers 57 and 58 can be turned from this position in the direction of the arrow 124 ( Figure 1) about the pivotal shafts 59 and 60 so that the spreader is moved to a higher position above the ground.
  • Figure 3 shows the spreading device in a position in which the rod 67 is fully extended from the cylinder 66 so that the spreader is in its most elevated position.
  • the construction of the embodiment shown is such that the distance 122 ( Figure 1) is about
  • the adjusting members 65 can be operated to achieve any desired working position between the lowermost working position of Figure 1 and the highest working position of Figure 3.
  • the selected working position can be maintained by maintaining the rod 67 in the appropriate position relative to the cylinder 6.
  • a locking device may be provided to fix the bell-crank levers in the chosen position.
  • a locking plate having a plurality of holes can be fastened around the pivotal shafts 59 and 60, and the bell-crank levers 57 and 58 may be provided with locking pins for insertion into the holes of the locking plates. If such a locking device is provided, the cylinder 66 need not be kept under pressure in order to retain the spreader 3 in the selected working position above the ground.
  • the pivotal shafts 59 and 60, the pins 101 and the pins 126 and 127 by which the top rod 91 is connec ⁇ ted to the lugs 73 or 75 and 90 preferably lie as viewed from the side, at the corners of a parallelogram so that, when the spreader is lifted, the distri ution members remain parallel to the initial position.
  • the parallelo ⁇ gram structure can be changed into a different polygon so that the distribution members 83 and 84 can be inclined fore-and-aft as shown in the side view of Figure 1.
  • this inclined position can be chosen as desired.
  • This inclined position is usually set so that, as viewed from the side, the distribution members are inclined upwardly to the rear. This may be required in order to spread given kinds of material across the overall width so that the desired distribution pattern is obtained.
  • the pins 101 When the spreader 3 is displaced, the pins 101 will move upwardly or downwardly with respect to the carrier 2 along the arc o f a circle 128 around the pivotal shafts 59 and 60.
  • the pin 70 will move along an arc of a circle 129 around the pivotal shafts 59 and 60.
  • the positions of the carrying arms 61 and the supporting arms 62 of the bell-crank levers 57 and 58 are chosen so that irrespective of the height of the spreader above the ground, the force which the adjusting member 65 must apply to support and displace the spreader 3 with any material in the delivery trough 82 is practically invariable assuming the degree of filling of the delivery trough 82 to be the same.
  • Owing to the movement of the pins 101 along the arc 128, the distance 130 of the centre of gravity of the spreading device 3 from the pivotal shafts 59 and 60 will change.
  • the moment arm 130 varies in dependence on the position of the carrying arm 61 about the pivotal shafts 59,60.
  • the force to be applied by the adjusting member 65 to support the weight of the- spreader 3 also depends on the distance 131 from the shaft 59 to the line of connec- tion 132 between the shafts 69 and 70.
  • This moment arm 131 also changes as the pin 70 moves along the arc 129.
  • the moment arms 130 and 131 change in the same direction so that , provided the weight of the spreader 3 remains the same, the force exerted on the adjusting me ⁇ her 65 remains the same regardless of the distance of the spreader above the ground. Because of this, the pressure in the cylinder 66 can be used as an indicator of the combined weight of the spreader 3 and the material contained in the delivery trough 82.
  • the variation of the amount of material in the delivery trough 82 can be measured.
  • the pressure in the cylinder 66 can be transmitted through the control device 52 to the gauge 110 and the needle 112.
  • the needle 112 then moves in dependence on the amount of material in the delivery trough 82 from a given zero position indicating the weight of the spreader alone. In this way the needle 112 can indicate how full the delivery trough 82 is. This indication can be used to keep the delivery trough 82 filled to a desired level by actuating or stopping the auger 36 as the case may be.
  • the needle 112 may be connected to a mechanism for acutating the hydraulic motor 43 so that, in depen- dence on the postiion of the needle 112, the motor is switched on or off to maintain the desired effect of material in the trough 82 for maintaining it at least within given limits.
  • This may be controlled, for example, by means of the control device 52 with which the hydraulic motor 43 can be connected by ducts 44.
  • the pressure in the cylinder 66 is used in this way, no locking mechanism would be used to fix a selected position of the bell-crank levers 57 and 58 about the pivotal shafts 59,60.
  • the distribution members 83 and 84 usually spread the material over equal distances to both sides of the equipment.
  • the distribution pattern on each run of the equipment declines towards the two outer edges of the covered strip. This means that the spreading density of the material decreases towards these outer edges. This is compensated for in the furtherruns by overlapping the strips covered by adjacent runs.
  • the material should be spread on one side of the spreader 3 with uniform- spreading density right up to the edge of the strip.
  • the whole spreader with the distribution members is inclined.
  • This inclined setting can be obtained by means of the tilting mechanism 133 on the spreader 3.
  • the tilting mechanism comprises an adjusting cylinder 98 and the plates 92 pivotable about the shaft 93.
  • the cylinder 98 may also be connected through the control device 52 with a hydraulic circuit.
  • the inclined setting shown in Figure 7 can be achieved by turning the plates 92 anti-clockwise about the shaft 93 with respect to the frame 81 by operation of the cylinder 98 of the hydraulic adjusting mechanism 133. This pushes the spreader upwards with respect to the carrying arm 61 until it occupies the inclined position shown in Figure 7. In this resulting position, the locking 5 pin 96 can be inserted into the holes 95. This position is then locked because the pin 96 is urged by the weight of the spreader against the front of the beam 88 so that it constitutes a stop. In this inclined position the material is spread to the right, as
  • the spreader 3 turns with respect 5 to the carrier 2 about the fastening pins connecting the spreader 3 to the . bell-crank levers 58.
  • the lugs 90 will also turn about-their pins. If the length of the top rod 91 remains the same, particularly when the top rod is inclined with respect to the equipment, 0 as viewed from " the side, the lugs 90 may be moved to the rear. This could adversely affect the desired orientation of the distribution members.
  • the two pairs of tongues 73 and 75 are provided, one pair on each side, at 5 positions away from the central longitudinal plane 134 of the carrier 2. Depending on the position of the top rod, it can be connected to the tongues 73 or 75 in order to " obviate the above disadvantage. It is then not necessary to change the length of 0 the top rod 91 for the skew setting.
  • a single pair of lugs may, as an alternative, be provided, which are movable transversely of the 5 longitudinal plane 134.
  • This is shown in Figure 8, in which a pair of lugs 135 with arms 136 are slidable along an upper beam 137 of the carrying bracket 46.
  • These lugs can be displaced by means of a screw spindle 138 mounted on the beam 137 and cooperating with an internally screwthreaded sleeve 139, the lugs 135 and the arms 136 being mounted on the sleeve.
  • the track width of the wheels 12 can be adjusted by removing the bolts 15 and displacing the wheel axles 13 in the clamping arrangements 14 (loosened for this purpose), and along the beam 8 and by fixing them in their new positions by means of the bolts 15 in other holes 145 of the plate 16.
  • the location of the wheel axles with "respect to the hopper 20 and the spreader is chosen so that an advantageous distribution of the weight on the carrying frame 6 is obtained. It is furthermore advantageous that, viewed on plan, the shaft 59 is located in front of and the pins 101 are located behind the axle 13.
  • the carrying frame can be supportedon the leg 18 when it is not coupled with a tractor or a similar vehicle.
  • Figure 9 shows a different way of fastening a transport member or auger 140 to the carrier 2.
  • the auger 140 is largely identical to the auger 36 and is, therefore, not shown in full detail.
  • the auger 140 comprises a transport cylinder 141, which is rotatable about its longitudinal axis and is arranged in a trough 142, which is mounted on the frame 6 and comprises the delivery funnel 25 and a tipping trough 143.
  • the transport cylinder can be turned through 180° about its longitudinal axis. This takes the opening 144 in the cylinder 141 out of register with the outlet port 26 of the funnel 25 so that the port is closed by the wall of the cylinder 141. Instead, the opening 144 opens into the tipping trough 143.
  • the delivery mouth 104 at the top of the cylinder 141 is then also turned through 180° about the axis of the transport member 140.
  • the hose 105 can then be directed into the top of the hopper 20.
  • the hopper can then be filled by the transport member 140 from the tipping trough 143, into which can be loaded the material to be provided in the hopper.
  • the tipping trough 143 may be provided with a filling chute (not shown) for filling the tipping trough for example, from one side of the carrier.
  • the plates 92 and the plates (not shown) on the beam 89, as well as the lugs 90, are disposed on the spreader in a manner such that, when disengaged from the carrying arms 61 and the top rod 91, the spreader can' also be hitched directly to the lifting device of a tractor or similar vehicle. Therefore, the ends of the two carrying arms 61 are spaced apart by a distance which is substantially equal to the distance between the ends of the lifting arms of a lifting device of a tractor.
  • " - Figures 10 to 13 show a further embodiment of a carrier. The carrier is designed slightly differently from that of the first embodiment, but would be used with a spreader similar to the spreader 3 of the first embodiment. Consequently, the spreader is omitted from Figures 10 to 12.
  • the carrier 150 shown in Figures 10 and 12 has a carrying frame 151 which comprises two beams 152, . only"one of which is shown in Figure 10. These beams 152 are horizontal in the horizontal position of the equipment. The rear ends of the beams 152 are interconnected by a rear beam 153. From this rear beam 153 the beams 152 converge towards the front and their front ends lie near each other and are interconnected by coupling plates 154, to which a coup ⁇ ling hook 155 can be fastened optionally any any one of a plurality of different vertical levels.
  • the carrying frame has two ground wheels 156, which are mounted on wheel axles 157 on the rear beam 8.
  • the wheel axles 157 are connected to the ends of the rear beam 153 by clamping arrangements in the same manner as in the preceding embodiment. so that this is not shown in detail in these Figures.
  • Each of the frame beams 152 is provided with a support 165 for a hopper 162.
  • the hopper 162 is largely identical , to the hopper 20 of the first embodi ⁇ ment and is, therefore, not shown in detail. Only the front wall of the hopper 162 has a form slightly different from that of the preceding embodiment; in this embodiment it has a steep front wall part 163 and a less steep wall part 164, which bears on part of the tip of the support 161.
  • Each of the supports comprises, as is shown in Figure 10, two substantially triangular support plates 165 and 166, which join one another at two corners.
  • the front edge 167 of the carrying support 165 is at right angles to the frame beam 152, whereas the rear edge 168 is parallel to the rear wall 169 of the hopper and coincides with this rear wall 169 as shown in the side view of Figure 10.
  • the front wall 164 and the rear wall 169 meet each other near the underside of the hopper and the underside of the wall 169 has an outlet port corresponding with the outlet port in the preceding embodiment.
  • a supporting cylinder 171 adjoins the wall 169 at the outlet port.
  • the cylinder 171 substan ⁇ tially corresponds to the supporting cylinder 27 of the preceding embodiment and is therefore not shown in further detail.
  • a transport member 173 in the form of an auger extends parallel to and along the rear wall 169.
  • the auger 173 comprises a transport cylinder 174 in which a transport helix (not shown) is arranged as in the preceding embodiment.
  • the trans ⁇ portcylinder 174 is connected by a clamping sleeve 175 to the top ends of supporting arms 176, which are fastened to the rear wall 169 of the hopper 162.
  • the rear wall of the hopper 162 is provided with a horizontal stiffening beam 177. In the region of the cylinder 174, the beam 177 has a recess or is interrupted. The lower ends of the supporting arms 176 are fastened to .the beam 177.
  • a hydraulic motor 178 for driving the transport helix in the cylinder.
  • a delivery spout 179 is also a hydraulic motor 178 for driving the transport helix in the cylinder.
  • Struts 180 extend above the respective beams 152 between the rear beam 153 and the stiffening beam 177.
  • the struts 180 are supported on the beams 152 by supporting beams 181.
  • Each of the struts 180 is provided with supporting plates 182, which are interconnected near their top edges and near their junction with the struts 180 by a tie beam 183.
  • the trans ⁇ verse beam 184 is provided with upwardly projecting fastening lugs 187.
  • the supporting plates 182 are provided with a coupling mechanism 188 corresponding to the coupling mechanism 56 of the first embodiment.
  • the coupling mechanism 188 comprises two bell-crank levers 189,each of which is pivotally mounted on a respective one of the supporting plates 182 by pivotal shafts 190, which are in line with each other.
  • Each of the ben- crank levers 189 comprises a carrying arm 191 and a supporting arm 192 corresponding to the carrying arms 61 and the supporting arms 62 of the preceding embodiment.
  • the supporting arms 192 are interconnected by a coupling beam 193 provided with a fastening lug 194.
  • the fastening lug 194 is connected to the frame 151 by an adjusting member 195.
  • the adjusting member 195 comprises a hydraulic mechanism having a cylinder 196 and a piston rod 197.
  • the piston rod 197 is pivotally connected to the lug 194, whereas the cylinder 196 is pivotally connected by a pivot pin 198 to a rocking arm 199 of a control mechanism.
  • the rocking arm 199 is mounted by a pivot pin 200 on a coupling support 201 fastened to the frame beam 152 in the manner shown in detail in Figures 11 and 12.
  • the rocking arm 199 is connected to a rod by a pin 202.
  • the end of the rod 203 away from the rocking arm 199 is movable lengthwise in a hole 204 in the supprt 201.
  • the rod 203 On the side of the hole 204 away from the rocking arm 199 the rod 203 is provided with a stop ring 206, and between the rocking arm 199 and the support 201 the rod 203 is surrounded by a compression spring 205.
  • the rocking arm 199 is connected by a coupling rod 211 to a rocking arm 212 of a retaining switch 213 mounted on the inboard side of the support .161.
  • the coupling rod 211 is fitted optionally in any one of a plurality of holes 214 in a coupling plate 215, which is connected to the rocking arm 199, so that the distance between the fastening point of the coupling rod 211 on the rocking arm 199 and the pivotal shaft 200 is adjustable.
  • the coupling rod 211 can also be fitted in any one of a plurality of holes 216 in the rocker 212 so that the distance of the junction between the coupling rod 211 and the pivotal shaft 217 of the rocking arm 212 is adjustable.
  • the rear of the cylinder has an opening that can be closed by a slide 220.
  • the slide 220 is connected by a rod 221 to a bell-crank control lever 222, which is pivotally mounted on the coupling beam 186.
  • the retaining switch 213 is coupled by electric conductors (not shown in Figures 10 to 12) to an electrically actuable valve 226 ( Figures 10 and 13).
  • the valve 226 is coupled through a monoblock 227 and ducts 229, 230 to a coupling 229 to be joined to a two-way connection 239 of a tractor or similar vehicle.
  • the valve 226 is connected by a duct 235 to a filter 231 disposed ahead of the inlet 232 of the hydraulic motor 178.
  • the outlet 233 of the motor 178 is connected to the monoblock 227 by a duct 234.
  • the monoblock 227 comprises a control valve 236, which is connected by non-return valves with restrictors 237 and 238 with ducts 228 and 230 respectively.
  • the valve 236 is connected by a duct 241 with a block 242 having three valves 243,244,245, which can be actuated manually by means of handles 246,247 and 248.
  • the valve 243 is connected by a duct 249 and the filter 231 to the inlet 232 of the motor 178.
  • the valve 244 is coupled by ducts 251 and 252 (not shown in detail) to the cylinder 98 of the adjus- ting mechanism 133 on the spreader 3.
  • the valve 245 is coupled by ducts 253 and 254 to the cylinder 196 of the adjusting mechanism 195.
  • the ducts 253 and 254 include, in a block 255, single- acting, controlled non-return valves 256 and 257, through which the ducts concerned are connected with opposite ends of the cylinder 196.
  • the ducts 228 and 230 are connected by ducts 60 and 261 respectively to a double-acting hydraulic cylinder (not shown) of a control mechanism for the dosing slides (not shown) of the dosing mechanism 146.
  • the equipment of Figures 10 to 13 is conencted in the same manner asshown in the preceding embodiment with a tractor or similar vehicle by the coupling hook 155.
  • the spreader 3 is connected by the top rod 91 to the lugs 187, and the coupling plates 92 are conencted by the pins 101 to the carrying arm 191 in the manner described for coupling the spreader 3 to the " carrying arms 61 of the preceding embodiment.
  • the shaft 116 of the spreader is coupled in the same manner as previously to the power take-off shaft of the "tractor by means of an auxiliary shaft 117, a coupling shaft 262 journalled in a tube 263 and anauxiliary shaft 120.
  • the tube 263 and the shaft 262 correspond to the tube 119 and the shaft 118 of the preceding embodiment.
  • the weight .of the spreader 3 with any material in the hopper 82 is supported by adjusting mechanism 195 which transfers the weight to the rocking arm 199 and hence to the spring 205.
  • the spring 205 is chosen so that it is compressed to the maximum or preferably not yet to the maximum when the delivery trough 82 carries its full weight of material. When the delivery trough 82 is empty the spring 205 is extended to the maximum or not yet completely. Depending on the weight of the delivery trough 82, the spring 205 is compressed to a greater or lesser extent.
  • the amount of material in the delivery trough 82 should not drop below a given value in order to ensure as uniform as possible a flow of material through the dosing mechanism 146 towards the distribution members 83 and 84.
  • the material will exert more or less pressure on the outlet ports of the dosing mechanism 146 so that the level of filling should preferably be as constant as possible.
  • the desired level of filling can be achieved by keeping the delivery trough 82 of the spreader uniformly filled through the transport helix of the auger 173 from the hopper 162.
  • the same amount of material has to be supplied to the trough by the auger 173 as is supplied from the trough 82 through the dosing mechanism 146 to the distribution members 83 and 84.
  • the auger 173 has a capacity such that when the openings in the dosing mechanism 146 are fully • open and the flow rate from the delivery trough 82 is at the maximum, the same amount can be suppled by the auger 173.
  • the rate of flow from the delivery trough 82 will be smaller so that the auger 173 has to supply a proportionally smaller amount of material to the trough 82.
  • the transport helix of the auger 173 is driven at a constant speed by the motor 178.
  • This drive and the capacity of the transport halix are such that with a constant supply of material by the auger to the delivery trough 82 usually more material would be supplied than is discharged to the distribution members 83 and 84. Therefore, the drive of the trans ⁇ port helix has to be interrupted from time to time so that the filling level of the trough 82 is kept as constant as possible.
  • a first filling level termed herein a minimum filling level
  • the drive of the auger is started and maintained until a second, higher filling level, termed the maximum filling level of the trough 82 is reached.
  • the trans ⁇ port helix in the auger 173 is switched off.
  • the auger is switched on and off by turning of the rocking arm 199 under the weight of the spreader and the material in the delivery trough 82.
  • the arm 199 will turn in the direction of the arrow 264.
  • This movement is transmitted by the coupli ng rod 211 to the arm 212 of the retaining switch 213.
  • the arm 212 moves towards a stop 265 so that a relay 266 moves into the position shown in Figure 13, so that the energiza ⁇ tions of the electrically actuable valve 226 is sup ⁇ pressed and the valve 226 blocks the supply of fluid from the pressure'* duct 228 to the duct 235 and the motor 178.
  • the rocking arm 212 also moves in a direction from the stop 265 towards the stop 268. During this movement of the rocking arm 199 the switching arm 212 holds the circuit intact for the desired angular turn for acutating the trans- port member 173.
  • the rocking arm 212 comes into contact with the stop 268 so that the relay266 changes over and the valve 226 is energized by the accumulator 273 of the tractor through the switch 213 and the conductor 267.
  • the duct 228 is then coupled with the duct 235 and fluid passes through the filter 213 to the motor 178 so that the transport helix of the auger 173 becomes operative to convey material from the hopper 162 to the delivery trough 82 until the maximum filling level is again attained.
  • the level of the material in the trough 82 can be kept within given limits. These limits may be adjusted by fitting the connecting rod 211 onto a different hole 214 and/or a different hole 216 so that the deflection of the rocking arm 199 is used more or less rapidly in dependence on the weight of the spreader to change over the switch 213 for switching the motor 178. Operation of the motor 178 under the action of the weight of the spreader 3 by meansof the switch 213 can be ensured when the hydraulic circuit of the tractor is connected so that the pressure duct of the hydraulic circuit is coupled with the duct 228. This- is the case when the equipment is spreading the material and the trough 82 of the spreader 3 has to remain automatically.filled between the minimum and maximum filling levels.
  • the control arm of the two-way connection 239 of the tractor When the equipment is out of operation, the control arm of the two-way connection 239 of the tractor is held in the medium position so that the connection of this circuit to the ducts 228 and 230 is blocked.
  • the openings of the dosing mechanism initially closed, have first to be opened. This is done by connecting the duct 228 through the duct 260 to the hydraulic control of the dosing slides of the dosing mechanism 146.
  • the control arm is moved from the medium position into the working position, in which the pressure duct of the hydraulic mechanism of the tractor is coupled with the duct 228, the first pressure pulse in the ducts 228 and 260 will bring about the opening of the slides of the dosing mechanism.
  • the pressure produced in the d U ct 228 will have a delayed effect on the slide 236 owing to the non-return valve with the restrictor 237 so that at the beginning of the job first the dosing slides are actuated for opening the outlet ports by the desired amount, after which the motor 178 can be switched on or off by means of the control valves for automatically main ⁇ taining a given degree of filling of the delivery trough 82.
  • the double-acting hydraulic mechanism of the tractor may also be set so that the pressure side of the hydraulic circuit is connected with the duct 230 so that this duct becomes a pressure duct and the duct 228 becomes the return duct of the hydraulic system of the equipment.
  • the entire control mechanism of the equipment In this position, termed the manually controlled position, the entire control mechanism of the equipment, the diagram of which is shown in Figure 13, is set to manual actuation.
  • the valve 236 and the duct 241 fluid under pressure is supplied to the valve block 242.
  • the pressure duct 241 Through the valve 243 of the block 242 the pressure duct 241 is connected with the duct 249 or can be connected therewith for driving the motor 178.
  • the return duct 234 of the motor 178 is then connected with the duct 228, then serving as a return duct, through the non-return valve.271.
  • the duct 228 is the pressure duct and the duct 230 is the return duct
  • the duct 234 is connected through the non-return valve 272 with the duct 230.
  • the hydraulic system of the tractor can be coupled through the valve 244, through the ducts 251 and 252 with the cylinder 98 of the adjusting mechanism 133.
  • the equipment can be tilted transversely of the normal direction 121 as is illustrated in Figure 7 or, res ⁇ pectively, it can be returned to the horizontal position out of the tilted position.
  • the adjusting mechanism 195 can be actuated through the valve 245, through the ducts 253 and 254.
  • the ro 197 can be extended from or retracted into the cylinder 196 for moving the bell-crank levers 189. This displacement serves - as is described for the preceding embodiment - to displace the spreader to a greater or smaller distance above the ground, as indicated in Figures 1 and 3 by the distances 122 and 125 respectively.
  • the manual control Q f the auger 173 serves, in parti ⁇ cular, to completely fill the trough 82 of the spreader independently of the automatically operating mechanism comprising the switch 213 and the slide 226. This manual control may also be used to actuate the auger 173 - as described for the preceding embodiment - when the hopper 20 can be filled through supply trough 143.
  • the trough 82 is automatically emptied, since the auger 173 no longer supplies material.
  • the non-return valves 256 and 257 in the ducts 253 and 254 to the cylinder 196 maintain the chosen relative positions of the cylinder 196 and the piston rod 197 so that the set position of the bell-crank levers 189 and hence the position of the spreader above the ground are main ⁇ tained during operation.
  • the hydraulic mechanism of the tractor can be switched over from the manual control through the medium position to the automatic control.
  • the medium position can then be selected, for example, to drive the equipment to the plot to be covered, when the mechanisms 133 and 195 are previously set.
  • the manual control is automatically switched off.
  • the switch 213 is an electric switch, it could be replaced by a hydrauli- cally operating switch responding, for example, to the pressure in the cylinder 196.
  • the pressure in the cylinder 196 also depends on the weight of the spreader 3.
  • the control mechanism 52 of the first embodiment may be governed by the pressure in the cylinder 66 and may otherwise be identical to the mechanism of Figures 10 to 13.
  • the second embodiment may also comprise an indicator such as the gauge 110 to display the filling level of the trough 82 or to check the same.
  • the actuation of the gauge 110 may also be derived from the pressure in the cylinder 196 of the deflection of the arm 199 in the direction 264.
  • the hopper 162 is preferably siutated in front of the wheel axles 157, and the spreading device
  • the troughs are sitauted near the wheel axles in order to ensure satisfactory weight distribution of the weight, with the wheels 156 supporting the major part of the weight while, during operation, the weight of the equipment exerts neither an excessive load on the coupling 155, nor an inadequatepressure.
  • the wheels have a diameter between 900 and 1400 mms.
  • the hopper 162 with the extension piece has a capacity of about 4200 litres, while the trough 82 has a capacity of about 1800 litres.
  • the cylinder 171 can be cleaned by raising the slide 220 by means of the arm 221 to clear the opening at the bottom of the cylinder 171.
  • the equipment embodying the invention can be readily controlled to obtain the desired settings of the adjustable members and mechanisms.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Fertilizing (AREA)
  • Catching Or Destruction (AREA)
  • Soil Working Implements (AREA)
  • Outside Dividers And Delivering Mechanisms For Harvesters (AREA)

Abstract

L'équipement comporte un élément porteur (2) et un épandeur (3) fixés à l'élément porteur (2) en trois points (126, 101). Deux de ces points (101) sont prévus aux extrémités de bras porteurs (61) faisant partie des leviers coudés à renvoi (57, 58). Un élément de réglage hydraulique (65) agit sur les leviers coudés à renvoi (57, 58) pour lever et baisser l'épandeur (3) par rapport à l'élément porteur (2). L'épandeur (3) peut par exemple être soulevé afin de répartir des engrais sur des récoltes sur pied. Une vis hélicoïdale (36) est prévue pour amener le matériau à répartir d'une trémie (20) de l'élément porteur (2) à un bac (82) de l'épandeur (3). L'actionnement de la vis hélicoïdale (36) peut s'effectuer en réponse au poids du matériau dans le bac (82) tel que détecté au niveau de l'élément de réglage (65), afin que la quantité de matériau dans le bac (82) ne dépasse pas des limites désirées.
PCT/NL1985/000007 1984-02-02 1985-02-01 Equipement d'epandage WO1985003407A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08523574A GB2163033B (en) 1984-02-02 1985-02-01 Spreading equipment
DK448785A DK448785A (da) 1984-02-02 1985-10-02 Spreder

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NL8400313 1984-02-02
NL8400313 1984-02-02
NL8403864A NL8403864A (nl) 1984-02-02 1984-12-20 Werktuig voor het verspreiden van materiaal.
NL8403864 1984-12-20

Publications (1)

Publication Number Publication Date
WO1985003407A1 true WO1985003407A1 (fr) 1985-08-15

Family

ID=26645926

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1985/000007 WO1985003407A1 (fr) 1984-02-02 1985-02-01 Equipement d'epandage

Country Status (5)

Country Link
DE (1) DE3590039T1 (fr)
DK (1) DK448785A (fr)
FR (1) FR2559016B1 (fr)
GB (1) GB2163033B (fr)
WO (1) WO1985003407A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0403780A1 (fr) * 1989-06-20 1990-12-27 Rauch Landmaschinenfabrik Gmbh Dispositif pour épandre des granulés spécialement des engrais
US5242120A (en) * 1991-12-06 1993-09-07 Larry Barber Multi component fertilizer supply system for a mobile spreader
EP0913077A1 (fr) * 1997-10-31 1999-05-06 Amazonen-Werke H. Dreyer GmbH & Co. KG Véhicule de transport
WO2013182700A1 (fr) * 2012-06-08 2013-12-12 Ezy Technology Innovations Limited Trémie remorquée avec dispositif de montage pour une épandeuse
CN109952846A (zh) * 2017-12-22 2019-07-02 王俞璎 一种农用生物肥料施肥装置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10262052C5 (de) * 2002-04-29 2008-09-25 Attila Kun Jun. Vorrichtung zum Ausbringen von Schüttgut
DE102019120473A1 (de) * 2019-07-30 2021-02-04 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Verfahren zum Einstellen der Neigung an einem landwirtschaftlichen Streugerät

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1505933A (fr) * 1965-12-24 1967-12-15 Lely Nv C Van Der Dispositif pour épandre de la matière
DE2141520A1 (de) * 1971-06-28 1973-02-22 Amazonen Werke Dreyer H Transportfahrzeug
DE2518397A1 (de) * 1975-04-25 1976-11-04 Amazonen Werke Dreyer H Maschine zum verteilen von streufaehigem material
DE2652914A1 (de) * 1976-11-20 1977-12-01 Kuxmann Geb Hubvorrichtung fuer anbaugeraete, insbesondere mineralduengerstreuer
FR2391634A1 (fr) * 1976-05-20 1978-12-22 Amazonen Werke Dreyer H Dispositif de portage pour instrument agricole d'epandage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1505933A (fr) * 1965-12-24 1967-12-15 Lely Nv C Van Der Dispositif pour épandre de la matière
DE2141520A1 (de) * 1971-06-28 1973-02-22 Amazonen Werke Dreyer H Transportfahrzeug
DE2518397A1 (de) * 1975-04-25 1976-11-04 Amazonen Werke Dreyer H Maschine zum verteilen von streufaehigem material
FR2391634A1 (fr) * 1976-05-20 1978-12-22 Amazonen Werke Dreyer H Dispositif de portage pour instrument agricole d'epandage
DE2652914A1 (de) * 1976-11-20 1977-12-01 Kuxmann Geb Hubvorrichtung fuer anbaugeraete, insbesondere mineralduengerstreuer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0403780A1 (fr) * 1989-06-20 1990-12-27 Rauch Landmaschinenfabrik Gmbh Dispositif pour épandre des granulés spécialement des engrais
US5242120A (en) * 1991-12-06 1993-09-07 Larry Barber Multi component fertilizer supply system for a mobile spreader
EP0913077A1 (fr) * 1997-10-31 1999-05-06 Amazonen-Werke H. Dreyer GmbH & Co. KG Véhicule de transport
WO2013182700A1 (fr) * 2012-06-08 2013-12-12 Ezy Technology Innovations Limited Trémie remorquée avec dispositif de montage pour une épandeuse
CN109952846A (zh) * 2017-12-22 2019-07-02 王俞璎 一种农用生物肥料施肥装置

Also Published As

Publication number Publication date
DK448785A (da) 1985-11-13
GB2163033B (en) 1988-02-17
GB8523574D0 (en) 1985-10-30
GB2163033A (en) 1986-02-19
FR2559016B1 (fr) 1990-09-21
FR2559016A1 (fr) 1985-08-09
DE3590039T1 (de) 1986-02-06
DK448785D0 (da) 1985-10-02

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