DE7442921U - DEVICE FOR REMOVING FORAGE FROM DRIVING SILOS - Google Patents

Description

a ι «ι ι · · a ··«

I «·« Ii (<> IMI · ·

Trioliet, with the partners Frederioue Llet, and

Cornells Hendrikue Liet Smitsbreeweg 2, Losser, The Netherlands

"Device for removing fermentation fodder from driving silos"

In recent years, a lot of forage, such as grass and cut maize, has been used in animal husbandry, which forage is stored in mobile or flat silos. When removing fodder from such silos, the fibrous fodder should be cut off as smoothly as possible in order to limit putrefaction caused by the ingress of air.

The invention relates to an urgent device for stretching fermentation forage from silos, provided with a frame which can be fastened to an agricultural tractor, is provided with a vertical central axis and has teeth which are fastened to the lower side and which form a fork, a support arm which is pivotably mounted on the vertical axis and which has a a vertical cut herstel lenden cutting organ carries. In a known embodiment of such a device, the support arm pivotable about the central axis carries a vertical guide track which extends up to the teeth and in which a knife is movably mounted up and down. By activating this cutter , by pivoting the support arm around the central axis , the knife can cut loose a semi-cylindrical block of fermentation forage.

This type of construction has the disadvantage that the long Hesser can be injured and often breaks off when it comes into contact with stones. In particular, however, the shape of the amount of fermentation feed remaining in the silo is less desirable.

It is the object of the invention to prevent these disadvantages and for this purpose creates a device of the type mentioned at the outset Type, which is characterized in that the cutting member is a hydraulically actuated, essentially vertically movable A spade that is rotatable about a vertical axis and consists of at least two mutually longitudinally movable parts

Il · Φ »* ·

- ι «ι

existing support arm is fastened. By means of this execution it is possible to loosen the fermentation feed in any desired shape. Because a rectangular block is preferable, at a preferred embodiment, the parts of the support arm freely movable with respect to one another and the stitch pattern is guided by a guide describing at least part of an essentially horizontal rectangle. This tour can take place on a be easily and inexpensively provided with a connected to a drive device, flexible pulling member that around guide members attached to arms extending from the frame run and attached to the spade let and at Actuation of the drive device shifts the spade. The spade is preferably attached by means of a Clamp in which the pulling element, such as a rope or a chain, is attached and on both sides of which the rectangle is offset towards the vat, lying freely on the outside of the pulling element Support organs.

If the pulling element is tensioned, for what purpose a boom preferably consists of two telescopically extendable parts, between which a compression spring is arranged, this will rest tightly against the two support members, so that the position of the Stitch spade is determined at a certain position of the Abetützorgans, while the stitch spade is easy to one on a boom attached guide organ can be passed.

These and other features of the invention are as follows

a preferred embodiment of the device according to the invention referring to the drawings in more detail he blasphemers. Sb put dart

1 shows a plan view of the device according to the invention, FIG. 2 is a side view of the device according to FIG. 1,

Fig. 3 is a plan view of the spade in v ^ rgrSeeertem Hase tab, and

Fig. 4 is a partial enlargement of a side view of the Stic & spateas.

The device according to the invention is provided with a frame » consisting of a horizonta 'ήι beam 2 and one of its Middle of vertically towering central beam 1 which carries a central axis 4 on the upper side, around which a bush 3 is mounted is. The horizontal bar carries backward protruding, parallel, horizontal fork tines 5 that can be inserted into the fermentation fodder. Furthermore, the central bar 1 and the horizontal bar 2 provided with eyes 6 and 7 for attachment to an agricultural tractor.

The rotatable bush 3 carries a horizontal tube 8 in which a rod 9 is slidably guided. This rod 9 carries a holder 10 with a hydraulically operated spade at the free end. This holder is rotatable about a vertical axis 11 with respect to the rod 9.

The upper side of the central axis 4 carries radial tubes 12, 13, 14, of square cross-section. One of these tubes 12 extends parallel to the horizontal bar 2 of the frame. Square tubes can be fixed in certain positions in these tubes Rods 15, 16 and 17 are displaceably arranged and carry a pulley 18 at their free end. Runs in around these pulleys Rope 19 that describes part of a rectangle. The rope runs around a drum 21 which is mounted on an axle provided with a crank 23 which is mounted on the square tube 12. The crank 20 can be operated from the tractor. The rope 19 is fastened to the holder 10 by means of a rope clamp 22 and rests against it two supporting members 22 'which can be displaced opposite this clamp to the center of the rectangle described by the rope, which likewise are attached to the holder. The rope forms a slight kink there.

From the holder 10 are a double-acting hydraulic cylinder 23, a single acting hydraulic cylinder 24 and one in one Tube 25 slidable guide rod 26 carried. The piston 27 of the first-mentioned cylinder * 20 carries a spade blade 28 at the lower end, to which the guide rod 26 is also connected. The single-acting cylinder 24 has a downwardly movable one Sälben 29, which on the inner side of a Sas spade blade 28

encompassing bracket 30 with a horizontal stripping plate 31 wearing. This stripping plate has an elongated, centric Provide an opening to let the spade blade through.

Both cylinders 23, 24. operated so that the stripping plate 31 and the spade blade 28 move downwards. As soon as the stripping plate 31 is on the fermentation fodder rests stops the movement of the same. The spade makes a vertical cut as it moves further. When turning back of the L.uckes in the double-acting cylinder 23 moves the Spade up again and as soon as it reaches the bracket 30, it takes the stripping plate 31 with it upwards. Previously prevented the stripping plate so that the fermented forage is taken upwards by the spade blade 28, which is moving upwards.

By operating the crank 20, the rope 19 is displaced and with the same the spade carried by the arm 8, 9, so that a subsequent stitch can be made. Because the rope describes an L-shape, rectangular blocks can always be used for fermentation fodder to be stabbed.

If it is desired to pierce smaller blocks, e.g. if the device is attached to a light tractor, you can the boom formed by the square tubes are telescopically shortened in such a way that part of a smaller one Rectangle is described by the rope 19.

According to a modified embodiment, the rope and the boom can be omitted, but then the horizontal arm 8, 9 _{can be adjusted in discrete positions, both in the direction and in the length r} , and the spade can be adjusted to this arm at an angle corresponding to each position of the support arm is determinable.

Although the horizontal arm 8, 9 has a round cross-section in the embodiment shown, it can also be very well have a square or rectangular cross-section, as a result of which the two parts cannot rotate relative to one another.

To reduce friction, between the two parts of the

7442921 2 ft ei 75

Arm 8, 9 ball or roller bearings can be arranged. §

It goes without saying that, within the scope of the invention, different |

Changes are possible. Instead of the rope 19, a |

rigid guide are applied, which also the disks 18 for |

Leading a locomotion organ for the holder 10 with the stitch |

can bear spade. The guide can also be a whole rectangle]

describe what offers the possibility of cutting on three sides, 1

which may be desirable in certain cases. I.

7442921 Z8.es.7S

Claims (1)

• ■ * * ■ • I I ■ · i I ϊ I Selistzanspruclie. 1. Device for removing fermentation fodder from mobile silos with a frame that can be fastened to an agricultural tractor and is provided with a central, vertical axis: uit on its lower side attached teeth forming a fork, one on the vertical axis pivotably mounted support arm, the a carries a cutting element producing a vertical cut, characterized in that the cutting element is a hydraulic is actuatable, substantially vertically movable spade, which is rotatable about a vertical axis (H) on at least two in the longitudinal direction mutually movable parts (8, 9) existing support arm is attached. 2. Apparatus according to claim 1, characterized in that the Parts (8, 9) of the support arm are freely movable against each other and that the spade through at least one part of a essentially horizontal rectangle descriptive guide is led. 3. Device according to claim 2, characterized in that the guide is a flexible pulling element (19) which is connected to a drive device (^, 21) and which is attached to brackets (12, 15; 13, 16; 14,17) attached guide organs,. (18) runs and which is attached to the * spade and shifts the spade when the drive device is actuated. 4. The device according to claim 3, characterized in that the Spade attached to the pulling element (19) by means of a fastening element (22) and with on both sides of this fastening element, offset to the center of the rectangle, on the outside of the tension member freely resting support members (22 ·) · is provided. 5 «device according to claim 3, characterized in that a Boom consists of two telescopically extendable parts, between which a compression spring is arranged. 6. Device according to claim 3 * 4 or 5, characterized in that that the booms extend radially from the vertical axis and each from two in different positions against each other 7442921 2ll.05.7ii I, III »· ·«> ■ mi a fixable parts exist. 7. The device according to claim 1, characterized in that the Abstutζarm (8, 9) in discrete positions, both in the direction as in length, is adjustable and that the spade can be fixed in an angle corresponding to each position with respect to this arm is.