DE202006004816U1 - Attachment for tractor to be used for removing layer of silage from block, comprising oscillating cutting blades - Google Patents

Abstract

A hood accommodating a drum rotating around a transversal axle is attached to the outer end of an arm (13) mounted to the front of a tractor (12). The drum is provided with several blades working in combination with a cutting unit (2) at the outer side of the hood. The blades of the cutting unit are hydraulically moved (16) in pairs in order to avoid vibrations. Bridges are positioned between each pair of blades located at the drum increasing the pressure and enforcing the downward motion.

Description

The The invention relates to a device for removing food from Flat silos according to the preamble of claim 1.

devices of this kind are e.g. in agriculture as attachments to front loaders tractors or swivel arms of feed mixing and feed distribution wagons used, they are generally used for the removal of food Flat silos. Removal devices attached to vertical guide rails are moved up and down, are known for the same purpose.

to The removal device on the front side is removed from the chuck of the flax silo so attached to the top, that when lowering a Fodder strip is removed. Here, the feed on the Silo floor or falling in receiving shovels. In a large part of the versions If the feed is taken over by a transporting device, e.g. in holds of Feed mix or feed distribution trolley promotes.

The Feed intake, exclusively through reapers, requires for solid, long-fibered silages often a high demand of the feed force required for lowering.

The Separating a food strip is often done by a general known, high-speed milling drum. This loses often in solid, long-fibered silages, part of their performance, so that the withdrawal time of the feed is unreasonably extended.

Around the aforementioned defects to avoid is provided according to the invention, to provide a device that reduces the power requirement during the lowering process reduced and improved performance in all silage types he brings.

A possible execution The invention will now be described by way of example and shown in the drawings.

1 shows a arranged on a front loader device in side view.

2 shows the view of the device from above.

3 shows the side view with illustrated operation.

4 shows a front view 3 ,

5 shows the assignment of a roller to oscillating knives.

The device according to the invention ( 1 ) consists essentially of the, with the recordings ( 14 u. 15 ) provided housing ( 6 ) with the hood ( 7 ), which with tines ( 10 ) occupied roller ( 9 ) and the cutting device ( 2 ).

The illustrated cutting device ( 2 ) shows several vertical oscillating knives ( 5 ) on one with a cutting edge ( 20 ) provided crossbars ( 8th ) of the housing ( 6 ) and in the lower area each with a profiled cutting edge ( 4 ) are equipped. The oscillating strokes of the knives ( 5 ) cause the hydraulic cylinders ( 18 ).

To rocking the device ( 1 ) during cutting work, the knives ( 5 ) are driven in pairs simultaneously. The number of knives ( 5 ) can be chosen arbitrarily, a uniform offset pairwise combined knives ( 5 ) is to be strived for.

For removing feed from flax silos ( 17 ) is the device of swivel arms, or by the front loader rocker ( 13 ) of the tractor ( 12 ) to the thickness (D) of a food strip ( 19 ), over the flat silo ( 17 ) lifted.

Up and down movements are via hydraulic cylinders ( 16 ) controlled. During the downward movement, the oscillating blades ( 5 ) a lining strip ( 19 ) from the flax silo ( 1 ) separated. By the engagement direction of the tines ( 10 ), the opposite of milling drums very slowly rotating roller ( 9 ), creates a force (K), which improves the cutting performance and relieves the power requirement of the lowering movement. At the same time, the cutting device ( 2 ) and the food along the hood ( 7 ) dissipated.

To talk about the effect of the tines ( 10 ) to support the cutting pressure and at the same time the lowering movement, the tines ( 10 ) with bars ( 11 ), wherein the web length preferably corresponds approximately to a blade width.

Optimum cutting performance is achieved when the extension of the axle ( 21 ), which is the center of the roller ( 9 ), the region of the stroke (H) passes between upper and lower dead center and at a narrow cutting gap (S) the webs ( 11 ) with the cutting edges ( 3 ) the knife ( 5 ) interact like scissors. The strokes (H), the knife (H) 5 ), are advantageous so with the speed of the roller ( 9 ) that if a bridge ( 11 ) the boundary line ( 23 ) reaches the bottom dead center of the stroke (H), the associated knife ( 5 respectively. 4 ) begins its downward cutting motion. Reached this jetty ( 11 ) the boundary line ( 22 ) of top dead center, the stroke movement of the knife ends ( 5 ) at the lower boundary never and it will be reset to its original position.

1

contraption

2

cutter

3

cutting edge

4

knife

5

knife

6

casing

7

Hood

8th

crossbeam

9

roller

10

prong

11

web

12

tractor

13

Frontladerschwinge

14

admission

15

admission

16

hydraulic cylinders

17

silo

18

hydraulic cylinders

19

lining strips

20

cutting edge

21

axis

22

Upper boundary line

23

Lower boundary line

D

thickness

H

stroke

K

force

S

cutting gap

Claims (8)

Apparatus for extracting feed from flat silos, which is preferably attached to the front loader swing of an agricultural tractor or on pivot arms of a Futterverteil- or feed mixer wagon, which has a cutter which separates with downwardly directed cutting edge on the front side of silos flax, characterized in that the cutting device ( 2 ) one with tines ( 10 ) occupied roller ( 9 ) is assigned such that by the direction of rotation of the lining of the cutting edge ( 3 ) and that by the engagement of the tines ( 10 ) in the flax silo ( 17 ) a downward force (K) on the cutting device ( 2 ) is exercised. Apparatus according to claim 1, characterized in that at least one with a cutting edge ( 3 ), oscillating knife ( 4 ), with a cutting edge ( 20 ) of the crossbeam ( 8th ) cooperates. Device according to claims 1 u. 2, characterized in that the knife ( 4 ) by a number of narrower, oscillating knives ( 5 ) is replaced. Device according to claims 1-3, characterized in that the rotational speed of the roller ( 9 ) with the strokes (H) of the knives ( 5 ) is tuned. Device according to claims 1 - 4, characterized in that the tines ( 10 ) of the roller ( 9 ) over a bridge ( 11 ), each of the width of a knife ( 5 ), are summarized. Device according to claims 1-5, characterized in that the tines ( 10 ), the roller ( 9 ), according to the offset of the knife strokes (H), are spirally offset. Device according to claims 1-6, characterized in that the center of the roller ( 9 ) intersecting axis ( 21 ), in its extension, the area of the stroke (H) between upper and lower boundary line ( 22 u. 23 ) goes through. Device according to claims 1-6, characterized in that between the knives ( 5 ) and the webs ( 11 ) there is a narrow cutting gap (S).