FR2605181A1 - CUTTING MACHINE FOR DEPOSITING STRAW OF HARVES OUTSIDE WHEELS AND MACHINE CUTTING SYSTEM - Google Patents

Abstract

A. CUTTING MACHINE FOR LAYING OUT CROPS OUTSIDE THE WHEELS AND CUTTING SYSTEM OF THE MACHINE. B. INSTRUMENT CHARACTERIZED IN THAT NEARLY IN THE MIDDLE OF THE WHEEL PASSAGES, AND BETWEEN THE SEGMENTS 21 OF THE AUGER 21, ON THE TURNSTAL 5, A CIRCULAR BLADE 19, 19 IS MOUNTED CENTRALLY AND RIGIDLY PERPENDICULAR TO THE L ' SHAFT 7 OF THE TOURNIQUET 5, AND THAT FIXED SEPARATION BLADES ARE FITTED ON BOTH SIDES OF BLADE 19, 19, THE EDGES OF THESE SEPARATING BLADES BEGINNING, OFFSET TO THE REAR, OUTSIDE THE CIRCUMFERENCE OF THE BLADE 19, 19 AND IN THE DIRECTION OF THE ROTARY WORK OF THE TURNSTILE 5. C. THE INVENTION CONCERNS A CUTTING MACHINE FOR THE FLAT DEPOSIT OF CROPS OUTSIDE THE WHEELS AND THE CUTTING SYSTEM OF THE MACHINE.

Description

"Cutting machine for the spreading of crops outside the wheels and

  The invention relates to a cutting machine for depositing the spread crop, which is mounted frontally on a self-propelled agricultural machine and in which is left free passages through the crop for the passage of the wheels of the machine. the agricultural machine.On the rest of the mown area, the harvest

  is deposited approximately on the cutting width.

  In the patent DD 235 311, there is described a cutting machine for the spreading deposit, for self-propelled agricultural machinery, in which the mowed crop is deposited, approximately over the width of the cutting tool.

  by means of a tourniquet with points through openings

  clearances. Between the clearance openings, guide bulkheads are mounted on the frame of the cutting tool in front of the wheels of the agricultural machine

  propelled. To separate the crop, separate blades

  These are fixed in a nearly vertical position immediately behind the cutting bar of the cutting instrument. On both sides of each separating blade, along the length, pass scraping fingers which are fixed on the axes of the tips of the tourniquet. In the zone of the wheels, where the cutting instrument does not have any opening of clearance, it is arranged on the turnstile of the segments having the form of a cylindrical envelope, and these are garnished externally of segments of worm arranged in the opposite direction, so that the mowed crop is carried away from these zones of the wheels,

  perpendicular to the direction of the deposit.

  This solution has disadvantages as regards the construction costs, because it requires important provisions to fix the scraping fingers on the axes of the teeth. At the same time the safety of the operation of this cutting instrument leaves much to be desired. Since the operating and construction conditions always require the presence of a gap between the cutting blade and the scraping fingers, there is an introduction of the mowed material at this point, which ultimately leads to a failure of the cutting material.

  the instrument due to obstructions and deformities.

  In addition, there is an increase in the wear of the control strips of the axes of the teeth, and of these axes themselves, because all the forces, which are formed during scraping and which are further increased because of bad behavior at the introduction of the separation device, apply by the axes of the teeth on

control tapes.

  The object of the invention is to provide a cutting apparatus for spreading deposit which, with a low construction cost, presents a high level of safety.

  operation, and good wear behavior.

  The object of the invention is to produce a crop-spreading cutting instrument which is mounted frontally on a self-propelled agricultural machine, and where the passage of all the wheels of the self-propelled agricultural machine is kept free of harvest, comprising in these areas, behind the cutter bars, separating blades mounted on the cutting instrument, which cooperate with a device fixed on a turnstile, disposed above the cutting bar, while on the turnstile are in the region of the wheel passage, cylindrical casing segments, and worm segments rotating in opposite directions, and on the cutting instrument, behind the separating blades, guide partitions, in which the The cutting device rests in the latch on the axis of this turnstile, operates almost without play between the cutting tools, and exerts no

  additional force on the axes of the teeth.

  The invention proposes for this purpose the

  positions: approximately in the middle of the wheel wells, and between the worm segments, on the turnstile, it is mounted centrally and rigidly, a circular blade perpendicular to the shaft of the tourniquet, and that are posed, two sides of the blade, fixed separation blades, the cutting edges of these separating blades starting, shifted rearward, outside the circumference of the blade and in the direction of rotational work of the turnstile. All of the harvested material is carried by the tourniquet uniformly backward and deposited. In order to keep the wheel wells free at that time, the known guide bulkheads and endlessly rotating auger segments which push the crop laterally are mounted. To separate the product from the entangled and felted harvest, each time, on the turnstile, is fixed a circular blade which rotates continuously between two separating blades, these blades being adjusted with a slight obliquity with respect to the circular blade and apply almost on it, or being pressed against it. The harvested material is cut into the slot which narrows between the cutting blade and the circular blade in a continuous manner. The segments in the form of a cylindrical envelope here prevent the material

  harvested to move or turn back.

  It is advantageous, according to the invention, for the circular blade to have teeth on its circumference which have a front flank which rises very

  slowly, and a rear edge coming down quickly.

  This form of teeth, paired with toothed, corrugated or arc-shaped cutting blades ensures a grip,

  an introduction, and a cut particularly advantageous

  giants of the harvest. It is also advantageous next

  the invention is fixed on the chassis of the instrument.

  cutting, supports on which can be

  screwed, adjustable, separation blades.

  Finally, it is judicious according to the invention that one of the blades arranged in pairs, as partitions of

  separation, be extended backwards to the extreme

  upper half of the main wall.

  It is obtained, with the solution proposed by the invention, a precise cut, as made with scissors of the crop mowed at the points of separation of the wheel passage zone of the self-propelled agricultural machine. Any dam in the area of the cutting blade is excluded. The proper operation of the cutting instrument is subsequently increased. As the circular blade is supported directly on the axis of the turnstile, the axes of the teeth may have smaller dimensions. At the same time, the wear behavior improves on

control of the axes of the teeth.

  The following is a description of a

  Embodiment of the invention with reference to the accompanying figures o: - Figure 1 shows a cutting tool for spreading in plan, - Figure 2 is a section of Figure 1, - Figure 3 is a partial view. of

the front of the cup.

  In Figure 1 is shown a cutting instrument 1, which consists of a bar of

26 0 5 1 8 1

  section 2, a frame 3, side walls 4, 4 ', and a turnstile 5, mounted on the side walls 4, 4', above the cutter bar 2. The side walls 4, 4 are further connected together by transverse supports 6, 6 '. The turnstile 5 has a shaft 7 and teeth 9 on pins 8, while, to control the teeth 9, are placed on one side, on the axes 8 of the teeth, roller levers 10, which are guided in a control strip 11 of the side wall 4. This cutting instrument 1 is mounted frontally on a self-propelled agricultural machine which is not shown in detail. The mowed crop exits the cutting instrument rearwardly through clearance openings 12, 12 ', 12 ", which extend across the entire width of this cutting instrument 1. To keep the feed wheel passages free the self-propelled agricultural machine, it is placed in front of the wheels 13, on the cutting instrument

  1, in the extension of the frame 3, partitions

14.

  The separation device which is

  2 and 3, is placed centrally with respect to the wheels 13, in front of the guide partitions 14, and has, on the chassis 3, for each wheel two separating blades 15. These separating blades

  15 are here screwed adjustable on supports 16.

  These separating blades 15 which are in pairs, protrude by their cutting edges which extend rearwardly and upward starting directly from the cutting bar 2, and which can be made smooth, corrugated, or toothed, to go to the vicinity of the segments 17 of cylindrical envelopes disposed between the axes of the teeth 8, and which together form a substantially closed cylindrical envelope, extending in the region of the guide walls 14 and are connected with the body

  base of the turnstile 5, in particular by the arms 18.

  On the cylindrical casing segments 17, a circular blade 19, 19 'is radially fixed, radially outwardly erected, so as to act between the separating blades 15 arranged in pairs, the latter being applying laterally. On its circumference, the blade 19, 19 'has teeth 20, which rise by a slight slope in the direction of work

  turnstile 5, and which have a vertical rear edge

  tical. The blade 19, 19 'further has a configuration such that the axes 8 of the teeth can pass freely there. On both sides of the circular blades 19, 19 'are welded on the different segments of cylindrical casing 17, counter-rotating segments 21, worm, which push the mowed crop of the separation device

  perpendicular to the turnstile 5. To separate exactly

  harvest, it is mounted between the turnstile 5 and the guide partition 14, in the extension of one of the

  two separating blades 15, a separating partition 22.

  The separating partition 22 goes from the guide partition 14, to the side of the circular blade 19, 19 ', and terminates at the top with the guide partition 14. In addition, obliquely extending scraper strips 23 are fixed, many, one above the other on the partitions

guidelines 14.

  In FIG. 3, for clarity, the segments 17 of cylindrical envelope have been removed on the left side.

RE VE N D I CA T I 0 NS

  1) Cutting instrument with spreading of the crop which is mounted frontally on a self-propelled agricultural machine, and where the passage of all the wheels of the self-propelled agricultural machine is kept free of harvest, comprising, in these areas, behind the cutter bars separating blades mounted on the cutting instrument, which cooperate with a device fixed on a turnstile, arranged above the cutter bar, while on the turnstile are fixed in the area of the passage of the wheels, cylindrical casing segments, and worm segments rotating in opposite directions, and on the cutting instrument, behind

  separation blades, guide bulkheads, instrumentation

  characterized in that approximately in the middle of the wheel wells, and between the worm segments (21),

  on the turnstile (5), it is mounted centrally and rigidly

  a circular blade (19, 19 ') perpendicular to the shaft (7) of the turnstile (5), and which are arranged on both sides of the blade (19, 19'), separating blades (15). fixed, the cutting edges of these blades (15)

  beginning, staggered backwards, outside the cir-

  conference of the blade (19, 19 ') and in the direction of

rotating work of the turnstile (5).

  20) Cutting tool according to the

  1, characterized in that the blade (19, 19 ') has, on its circumference, teeth (20) which have a front flank which rises slowly, and a

  rear flank descending sharply.

  3) Cutting tool according to the

  1, characterized in that, on the frame (3) of the cutting instrument (1), are fixed supports (18), on which are fixed, adjustable, the separating blades (15).

  4) Cutting tool according to the claim

  1, characterized in that one of the separate blades

  pairs (15) is extended as partition (22) approximately to the end of the partition

director (14).