NL7903962A - DEVICE FOR SPREADING GRAIN AND / OR POWDER MATERIAL. - Google Patents

Description

C. van der Lely E.V. in Maasland "Device for distributing granular and / or powdery material"

The invention relates to a device for distributing granular and / or powdery material, comprising a frame to which at least one impeller is coupled for supporting the device 5 and a reservoir with at least one spreading member for distributing the material over or in the ground.

An object of the invention is to improve a device of the above type. According to the invention this can be achieved when the running wheel is mounted on the frame in a height-adjustable direction and can be fixed in a position of at least two different heights relative to the frame by means of a locking mechanism of choice. As a result, the device can be used in two positions, where one position can be a position in which the device spreads the material, while the other position can be used to fill the reservoir. The reservoir can then be filled when the wheels are in their highest position relative to the frame so that the reservoir with the top side is located at a relatively low height above the ground and the reservoir is easy to fill.

A favorable exemplary embodiment of the device according to the invention is obtained when the running wheel is coupled to a coupling device with which the device can be coupled to a vehicle moving the device. In this way, the device can be easily advanced. According to a further embodiment, the coupling device is connected to the running wheel such that when the running wheel is adjusted in height direction relative to the frame, the coupling device is adjusted with respect to the frame of the device. * that the reservoir and / or the spreading member maintain its position relative to the horizontal plane. In particular for filling the reservoir it is advantageous to be able to keep the reservoir, for example with the top side horizontal. When in the low-lying position of the reservoir this reservoir is completely filled, no material will undesirably be able to escape over the top edge of the reservoir walls when the running wheel is adjusted in height direction such that the reservoir rises relative to the bottom. Also, the spreading member can hereby always be kept in the desired position in the different positions of the running wheel relative to the reservoir.

A simple construction is obtained when the running wheel is mounted on a support arm which is hingedly mounted in the frame and is optionally lockable in one of at least two positions.

The construction can be further simplified here when the carrying arm is coupled to an adjusting member with which the carrying arm is adjustable relative to the frame. A strong construction is obtained when the draw arm is hingedly connected to the frame.

The invention will be further elucidated with reference to the drawings of two exemplary embodiments of the device according to the invention.

Pig. 1 is a side view of a device according to the invention;

Pig. 2 is a front view of the device of FIG. 1; 30- Pig. 3 is an enlarged view of a portion of the side view of FIG. 1;

Pig. 4 is a plan view of a portion shown in FIG. 3, taken along line IV-IV in FIG. 3; Pig. 5 shows a side view of another 790 3 9 62

<· V

3 exemplary embodiment of the device according to the invention.

The exemplary embodiment shown in Figures 1-4 has a frame 1 to which a reservoir 52 is arranged. The frame 1 comprises vertically extending place supports 3, which are fastened with the top side to horizontal beams 4 on which the reservoir 2 rests. The frame 1 comprises a beam 5 extending transversely to the direction of travel 13, the ends of which are attached to beams, which are located on either side of the device and extend backwards from the beam 5. Beams 5 and 6 are attached to the bottom of the plate supports. The beams 6 are provided near their rear ends with bearing plates 7 in which a carrier shaft 8 is mounted. The mounting of the bearing shaft 8 in the bearing plates 7 is secured by locking plates 9. The bearing shaft 8 is provided with two bearing arms 10, the ends of which are connected to a wheel shaft 11 which is provided with wheels 12 at the ends.

2q The carrier shaft 8 is provided with a lip 16 to which a coupling arm 17 is hingedly coupled. The end of the coupling arm 17 remote from the lip 16 is hingedly connected to an arm 18, which is fixedly coupled to a pulling arm 19 provided with a towing eye 20. The fixed coupling 25 between the lip 18 and the pulling arm 19 is formed by a bearing sleeve 21 to which both the lip and the draw arm 19 are fixed. The bearing bush 21 is arranged between lips 22 and 23 which are attached to the beam 5 of the frame 1.

The bearing bush 21 is pivotable about a pivot shaft 24 which is mounted in the lips 22 and 23. The shaft 24 is further alloyed in a support plate 25 which is equal to the plate 23 and protrudes above the beam 5. At the top end of the plates 23 and 25, a hydraulic cylinder 27 is arranged by means of a hinge shaft 26. The piston rod 32 is coupled by means of a pivot shaft 29 to a lifting arm 790 3 9 62 ♦ 4 28, which is fixedly attached to the support shaft 8. The cylinder 27 can be coupled by means of lines 30 and 31 to a device advancing the device. vehicle such as, for example, an agricultural tractor · The two frame beams 6 are provided near their ends with lips 36 on which frame arms 38 are arranged by means of hinge shafts 37, all this as shown in fig. 4 for only one side of the device. An intermediate support 39 is mounted between the frame arms 38. A gearbox 40 is mounted on the support 39, in which an upwardly extending shaft 41 is mounted. The frame arm 38 includes a portion 44 which is also attached to the gearbox. The section 44 extends along a lip 45 to which a locking pin 46 is provided, which is inserted through an opening in the section 46.

Shaft 1.41 carries a spreader 42 located below the reservoir. A dosing mechanism 43 is provided between the reservoir and the spreading member, which is not shown in more detail. Near the front of the spreader, a shield plate 47 is provided, which is connected to the frame by mounting strips 48 (Fig. 3). The gearbox 40 includes a transmission coupled to the shaft 41 and having a horizontal shaft 50 protruding to the front outside the gearbox 40. The shaft 40 is coupled to an extension shaft 51 by means of a universal joint 55. The shaft 51 is mounted in a bearing support 52 and protrudes near the beam 5. The front end of the shaft 51 is coupled by means of a coupling 30 54 to an intermediate shaft 53 which can be connected to the PTO shaft of, for example, an agricultural tractor to which the towing eye 20 can be attached.

For the use of the device, it is coupled with the towing arm 19 to a vehicle moving the device, such as for instance an agricultural tractor. The 790 3 9 62 - *% 5 drawbar arm thus forms a coupling device for coupling the spreading device to a vehicle. Here, the intermediate shaft 53 is further coupled to the power take-off shaft of the tractor, while the lines 30 and 31 with the hydraulic mechanism of the tractor.

The device serves for spreading material, for which in this exemplary embodiment the device is provided with a spreading member 42 which can be rotated via the shaft 53 and the transmission in the gearbox 40. The amount of material that. supplied to the spreader per unit of time can be controlled by the dosing mechanism 43 * Although in this exemplary embodiment a rotating spreader is provided, other spreader members can also be arranged on the device • J5 for distributing the material in and / or over the soil. For example, seed pipes or other means may be provided on the device for spreading the material over or into the soil. The material to be spread is entrained in the reservoir 2 and from there in the desired dosage to the spreading members present, as in this embodiment the throwing member 42 is supplied.

When spreading the material, the spreading member will preferably take a certain position with respect to the soil in order to spread the material over or in the soil in the most favorable manner. In this exemplary embodiment, the spreading member 42 is located, for example, at a distance 56 of 90 cm above the bottom. Particularly when the reservoir has a relatively large volume, the top side 58 of the reservoir will lie at a relatively great distance 57 above the bottom.

For filling the reservoir 2 it will usually be advantageous if it is as low as possible at the bottom. The filling of the reservoir can for instance take place from the loading box of a transport trolley. For this purpose, the top 790 of the reservoir will preferably be at a distance 57 above the bottom such that the reservoir can be easily filled from a drawer. For this reason, the device is supported by the wheels 12 and 5 pull arm 20 in such a way that the reservoir can drop a considerable distance from the position shown in solid lines in Fig. 1. The wheels 12 can be moved in height direction relative to the frame 1 for this purpose by rotating the bearing shaft 8 in the bearing plates 10. The reservoir 2 can drop to the extent that the bottom of the frame formed by the bearing plates 7 is located near the bottom. The wheels 12 are hereby raised relative to the frame 1, to the position shown in broken lines in Fig. 1. The distance 59 over which the wheel axle 11 and the wheels attached to it can be adjusted maximally in height direction relative to the frame is preferably chosen such that the top side 58 of the reservoir can be arranged so low that the reservoir is easy to fill. from vehicles or under hoppers from which the reservoir can be filled and the spreader 42 can be raised to such a height above the bottom as is desirable to spread material.

The rotation of the shaft 8 and thus of the wheels 12 in the bearing plates 7 can be effected by the hydraulic cylinder 27. For the movement of the bearing shaft 8, either liquid can be pressed through the pipe 30 or through the pipe 31 into the cylinder depending on whether one wishes to rotate the wheels 12 up or down 30 with respect to the frame 1. In the position shown in fig. 1, the rod 32 is maximally extended from the cylinder 27 about the wheels 12 in the lowest position relative to of the frame 1 for a working position of the device with the throwing member 42 located at a distance 56 above the ground 35.

790 3 9 62 4 * 7

If only the wheels are adjusted in height relative to the frame, the reservoir will assume an inclined position. This tilt will prevent maximum filling of the reservoir.

Therefore, it is desirable that the reservoir be in both the lowest and highest positions above the bottom and positions therebetween horizontally with the top 58. A horizontal position of the spreader 42 will usually be desired. For this reason the draw arm 19 is coupled to the wheels 10 via the lip 18, the coupling arm 17, the lip 16 on the support shaft 8 and the arms 10. In the position of the wheels 12 in fig. 1 drawn in drawn lines, the draw arm is 19 fixed relative to the frame in the position shown in FIG. The towing eye 20 hereby lies at a normal height above the ground for coupling to a tractor. When the support shaft 8 is adjusted, the coupling arm 17 will move due to the fixed connection to the lip 16 and rotate the lip 18 about the shaft 24.

As a result, by means of the fixed mounting of the 20 1S by means of the bearing bush 21 on the pulling arm 19, the pulling arm 19 will move upwards, such that the movement of the arm 19 is synchronous with the movement of the amen 10, all this in such a way that the top side 58 of the reservoir 2 remains horizontal. In the dotted position of the wheels 12 shown in Fig. 1, the pulling arm 18 will be in the dotted position shown. The distance 60 from the towing eye 20 in the lowest drawn position to the dotted position is equal to the distance 59 »

By loosening the pins 46, the carrying arms 38 with the parts 44 can be rotated about the axis 37.

The throwing member 42 can hereby be lowered relative to the reservoir 2. The dosing member 43 can then be removed from between the reservoir and the throwing member 42. This is important for cleaning the 35 different parts of the device.

7903962 8

Although in this exemplary embodiment the wheels 12 are drawn in two positions, which indicate the maximum and minimum height of the wheels relative to the reservoir, it is also possible to design the cylinder 27 such that the wheels can be placed in an intermediate position. In this manner, the height of the pitcher 42 courts can be adjusted to the ground. It is also possible to design the device in such a way that the wheels 12 can drop even further relative to the frame than is shown in this exemplary embodiment. This allows the throwing member 42 to lie even further above the ground, e.g. at a height of 120 cm. This can be useful, for example, when fertilizer has to be spread above the ground when the crop already has a certain height above the ground. The adjusting device 27 also forms a locking device with which the wheels 12 and the pulling arm 19 can optionally be held in one or two positions with respect to the frame 1. Other locking devices can also be selected around the wheels 12 and the adjusting arm 19. be able to fix teeth in relation to the frame in the different heights. Although this is not shown in this exemplary embodiment, the arm 19 can optionally be adjustable with respect to the bearing bush 21, such that the draw arm can optionally be set in one of two or more positions 25 with respect to the bearing bush. This can be important in order to be able to adjust the height of the towing eye 20 above the ground for, for example, certain types of vehicles to which the device can be fitted.

The exemplary embodiment shown in Fig. 5, which is indicated more schematically and will be described, comprises a frame 65 to which a reservoir 66 is arranged. A spreader 67 is coupled under the reservoir and is coupled to transmissions in the gearbox 68, which is coupled to an intermediate shaft 69. The device is supported by wheels 70 on a wheel axle 71 »The wheel axle 71 790 3 9 62 A»

O

is connected to support arms 72 arranged on either side of the device. At least one support arm 72 consists of a mutually enclosing arms 74 and 75 which are fixedly coupled to each other by means of a plate 76. The support arm 72 is provided with a lip 77 which is hingedly coupled to a hydraulic cylinder 78 which is rotatably mounted on a pivot axis 79 on the frame 1, almost the support by the wheels 70, the device is still supported by a draw arm 82, which with a draw eye 83 device for moving vehicle can be coupled. The pulling arm 82 is hingedly coupled to the arm 75 of the supporting arm 72 by means of a pivot shaft 84. The pulling arm Q2 is provided with a support plate 85, the top end 85 of which is fork-shaped • J5. Between the legs of this fork-shaped portion 86, a rocker arm 88 is hinged about a pivot shaft 87, which is mounted in the legs of the fork-shaped portion 86. The rocker arm is provided with a bottom roller 89 and a top roller 90. Between the rollers 89 and 90, a guide rod 91 is provided which is fixedly secured to the frame 65 of the device.

The device according to this exemplary embodiment, like the exemplary embodiment according to FIG.

1-4 for spreading granular and / or powdery material, in particular fertilizer, using the throwing device 67 · For this purpose, the device with the towing eye 83 can be applied to a pulling leather, the intermediate shaft 69 with the PTO shaft of the tractor is coupled.

The pipes on the hydraulic cylinder 78, not shown in more detail, can be coupled to the hydraulic mechanism of the tensile leather. By starting from the position as shown in Fig. 5, influencing the hydraulic cylinder 78 in such a way that the cylinder rod 94 is pressed out of the cylinder 78 ', the carrying arm 72 will rotate about the pivot axis 73. The carrying arms 72 on either side of the facility 790 3 9 62 0? 10, as seen in FIG. 5, will thereby rotate counterclockwise about the pivot axis 73 so that the wheels 70 can be brought into the position shown in broken lines in FIG. With the wheels in the dotted position 5, the reservoir can drop considerably with respect to the ground, so that the top of the reservoir is lower and easier to fill.

In order to prevent the reservoir from tilting during the movement of the wheels 70 with the support arm 72 09 the pivot shaft 73, the pull arm 82 is arranged such that it moves synchronously with the movement of the support arms 72 about the pivot axis 84 in the direction according to the arrow 95, such that when the wheels 70 have moved over distance 92 from the frame, the towing eye 83 moves over distance 93, which is equal to distance 92.

In this way, the reservoir is kept in the horizontal position. The movement of the pull arm 82 in synchronism with the rotation of the arm 72 is achieved by the hinge shaft 84 moving with the arm 72 about the hinge shaft 73 whereby the support 85, which is fixedly fixed with the pull arm 82, moves along the guide arm 91 and the pulling arm 82 rotates about the shaft 84. The guide arm 91 has a fixed position in the frame in order to achieve the desired guidance of the pull arm 82. The position of the arm 91 and its shape are chosen such that at each position of the wheels 70, the arm 82 with the towing eye 83 has a position which ensures a horizontal position of the reservoir and the throwing member 67. Depending on the location of the pivot shaft 84, the length of the arm 82 and the location of the support 85, the guide arm 91 will have a certain shape and location in the frame which gives the desired guidance for the pull arm 82. In this exemplary embodiment, the arm 91 is practically straight, but the arm can also be more or less curved with the curvature downwards or upwards depending on the dimensions of the different parts.

7903962 «- * 11

As in the previous embodiment, the cylinder 78 can be selected such that all kinds of intermediate positions between the extreme positions of the carrying arms 72 can be reached with the wheels 70 and can be locked.

Although in the embodiments shown the running wheels are movable in height direction relative to the frame by arranging the running wheels on support arms arranged pivotally in the frame, it is also possible to mount the running wheels in a different direction in height direction in the frame. bring. The running wheels can for instance be arranged on supports arranged in the frame which can be displaced in height. The supports will then be driven by an adjusting and locking mechanism relative to the frame and optionally in at least one. of at least two different height positions.

The invention is not limited to what has been described above and is set out in the claims, but also extends to what appears from the drawings and is shown in details thereof, but is not described.

Conclusions 7803962

Claims (31)

1. Device for distributing granular and / or powdered material, provided with a frame, to which at least one impeller is coupled for supporting the device and of a reservoir with at least one spreading member for distributing the material over or in the ground, characterized in that the running wheel is mounted in the direction of height adjustable on the frame and can be fixed by means of a locking mechanism optionally in one of at least two different directions in height relative to the set . 2. Device according to claim 1, characterized in that the running wheel is coupled to a coupling device, with which the device can be coupled to a vehicle moving the device. 5. Device as claimed in claim 2, characterized in that the coupling device is connected to the running wheel, such that when the running wheel is adjusted in height direction relative to the frame, the coupling device is adjusted in such a manner relative to the frame of the device. that the reservoir and / or the spreading member maintain their position relative to the horizontal plane. 4. Device as claimed in claim 2 or characterized in that the coupling device comprises a draw arm, which is mounted on the frame in height-adjustable manner. Device according to claim 4, characterized in that the pull arm is hingedly connected to the frame. 6. Device as claimed in any of the foregoing claims, characterized in that the idler wheel is arranged on a support arm, which is pivotally mounted in the frame 50 and is optionally lockable in one of at least two positions. Device according to any one of the preceding claims, ...... characterized in that the support arm is coupled to an adjusting member, with which the support arm is adjustable relative to 7903 9 62 of the frame · 8. Device as claimed in any of the foregoing claims, characterized in that the adjusting member comprises a locking mechanism, with which the carrying arm can optionally be locked in at least two different positions. 9. Device according to claim 7 or 8, characterized in that the adjusting member comprises a hydraulic mechanism with which adjustment and / or locking of the carrying arm can be effected. 10. Device as claimed in any of the foregoing claims, characterized in that the locking mechanism is such that the impeller can optionally be locked in one of at least three positions in height relative to the frame. 11. Device as claimed in any of the claims 7-10, characterized in that the adjusting member is a longitudinally changeable adjusting member which is connected at one end to the frame and at the other end to the carrying arm. 12. Device as claimed in any of the foregoing claims, characterized in that the carrying arm is arranged on a carrying shaft which extends transversely of the longitudinal direction of the device and is mounted in the frame. Device according to claim 12, characterized in that the device is provided with two running wheels arranged on either side of the device, which are jointly adjustable in height direction relative to the frame. 14. Device as claimed in claim 12 or 13, characterized in that the carrying shaft is provided with a lip-shaped lifting arm 50 which is coupled to the adjusting member. Device according to claim 12, 15 or 14, characterized in that the carrying shaft is coupled by means of a lip-shaped lifting arm to a coupling arm which is coupled to the pulling arm. 16. Device as claimed in claim 155, characterized in that 79039 62 is that the coupling arm is coupled to a lever which is fixedly attached to the pulling arm. 17. Device as claimed in claim 16, characterized in that the lever and the pulling arm are both arranged on a support bush hingedly mounted in the frame. 18. Device as claimed in any of the claims 15-17? characterized in that the draw arm is mounted on a frame beam near the bottom of the frame. 19. Device according to any one of claims 1-11, characterized in that a carrying arm is pivotally mounted on one side of the device. 20. Device as claimed in claim 19, characterized in that on both sides of the device a carrying arm is hinged to the device, which carrying arms 15 are coupled to a wheel axle which is provided with at least one running wheel on either side of the device. 21. Device as claimed in claim 19 or 20, characterized in that the carrying arm comprises two adjusting arms enclosing an angle with each other, which are fixedly coupled to each other and are jointly rotatable about a pivot axis in the frame of the device. 22. Device as claimed in claim 19, 20 or 21, characterized in that the coupling device is arranged on the carrying arm. Device as claimed in claim 22, characterized in that the coupling device comprises a draw arm which is hingedly connected to the support arm. 24. Device as claimed in claim 22 or 23, characterized in that the pulling arm is movably coupled to a guide fixed to the frame of the device. 25. Device as claimed in claim 23 or 24, characterized in that the pulling arm is provided with an arm which has at least one support, which is movable along the guide. 26. Device according to claim 25, characterized in that the support comprises a roller. 7903962 Device according to claim 26, characterized in that the support is provided with a rocker arm at the ends of which rollers are arranged which are located on opposite sides of the guide. 28. Device according to any one of claims 1-5? characterized in that the running wheel is slidably attached to the frame in height. 29. Device according to any one of the preceding claims, characterized in that the device is provided with a spreader located under the reservoir and in the highest position of the wheel relative to the frame lower than the top of the wheel. 50. An apparatus according to claim 29, characterized in that the spreading member is pivotally mounted on the frame. 51. Device according to claim 29 or 30, characterized in that the spreading member is a throwing member rotatable about a shaft extending in the direction of height, which coupling is coupled to the drive means and which are provided with a coupling for coupling the the drive means with a PTO shaft of a vehicle advancing the device. 52. Device as described above and shown in the drawings. 79039 62