FR2742301A1 - Mower and conveyor for standing crops, with rotary cutter disc with peripheral blades - Google Patents

Abstract

Conveyor discs (6) with peripheral conveyor tines and intermediate incisions (9) are positioned above the rotary cutter disc (5) with its peripheral blades. The cutter disc and conveyor discs rotate at different speeds or in contrary rotary directions. In the centre of the operating width of the mower and conveyor rotor, a stalk lifter (3) is positioned in front of the rotor and runs to a point at the front. At the back, the stalk lifter is in the form of a guide extending over part of the operating width.

Description

MOWING AND CONVEYING DEVICE FOR A PRODUCT

HARVEST WITH RODS

  The present invention relates to a mowing and conveying device for a harvested product provided with stems,

  comprising a rotary disc with sectioning

  heads around its periphery, and conveying discs which occupy overlying positions and include, around their periphery,

  conveyor forks between which there are

  teeth, the cutting disc and the conveying discs rotating at different peripheral speeds or

  in opposite directions of rotation.

  The invention further relates to a device of the aforementioned type in which manifold strips placed at a distance from each other are fixed to the edge of the cutting disc, on the upper face of the latter, strips of which the initial zone of attack occupies, in the radial direction, a position situated more outside than the trailing end, said bars extending at an angle flattened by

  with respect to the tangent of the cutting disc.

  In addition, the invention relates to a device of the type

  mentioned in the introduction, in which, moreover, the

  dentations of the conveying discs are curved so that a rod housed in said indentations tends, during a rotation of said conveying discs, to remain in these indentations because the bulging extends up to the

  adjacent conveyor fork tip, and partial belt-

  LEMENT said rod; and in which the radially outer part

  lower conveyor forks for the harvested product

  tee fitted with rods, a penetration edge which extends obliquely

  than with respect to the tangent of the conveying disc and whose initial zone of attack, forming the point of a fork of

  conveying, is located more outside, in the direction

  dial, as the trailing end of said edge.

  A mowing and conveying device of this kind is known from the polychrome prospectus of the so-called company

  "Maschinenfabrik Kemper", 48703 Stadtlohn, entitled "Der rei-

  henunabhangige Mâhvorsatz KEMPER CHAMPION 4500 ", in DIN A3 format, comprising four pages. A dominant characteristic of

  this structural arrangement resides in the large number of points

  your dividers occupying a frontal position. In the case of large devices, six separating points are installed over the working width corresponding to the diameter of the discs. It follows that, during a displacement in a curve on the field, during which a lateral advance component is also imposed on the known mowing block, many plants are crushed by the separating points and are not properly cut. In addition, the support structure

  separating points require considerable complexity

  maple. The device according to the invention is characterized in that a single stem lifter installed upstream of the mowing and conveying rotor, substantially at the center of the working width of the latter, ends at the front by a point and is produced, at the rear end, in the form of a rod guide element which cooperates with said rotor

  mowing and conveying, and which extends over a zone par-

  tial of the working width. This results in better

  successful mowing on curves and, simultaneously, simplification

  tion. This provides a better introduction of the

  in the system while ensuring, at the same time, a possibility of also harvesting colonies

  deteriorated showing, in part, coated plants.

  Furthermore, the invention can be advantageously used.

  applied to mowing and conveying devices of the type proposed in German patent application 195 35 454.0 of the applicant, in which it had to be completely renounced to fixed separating points, within the width of

  work, using manifolds subject to the dis-

  as rotary sectioning or, respectively, using

  teeth with a particular bulge on the discs

conveyor.

  According to other advantageous features of the provision

  sitive according to the invention, provided with a central rod lift

  tral: - a guide finger, fixed to the rod lifter as an element

  rod guide, can advantageously extend obliquely

  in the direction of the mowing and conveying rotor, forming

  a wedge-shaped interstice of introduction from the side of the soul-

  born from the rod lifter, then extend a certain distance

  beyond the width of said rod lifter, describing sensi-

  a circular coaxial path in the direction of rotation of the rotor; - the rear side of the actual stem lifter constitutes,

  preferably, a rod guiding element and shape, pre-

  ference, a wedge-shaped interstice of introduction with the peri-

  circular hole of the mowing and conveying rotor; - A stirrup, fixed to the rod lifter by its two ends, can conveniently provide its guide configuration on the rear side of said rod lifter; - the guide finger enters between the conveying discs,

  in the radial direction, preferably up to part of the pro-

  founder of indentations; and - the conveying forks of several conveying discs arranged in superposition, respectively ensuring a joint conveying, can be judiciously offset from one another, in the direction of rotation, so that the tip of the upper forks shows an advance of a weak

  distance from the tip of the lower forks.

  The invention will now be described in more detail, by way of non-limiting examples, with reference to the appended drawings in which: FIG. 1 is a plan view of a first mowing and conveying device; Figure 2 is a schematic side elevation of the device according to Figure 1, with the omission of other drive parts;

  Figure 3 is a plan view of a mowing device.

  chage and conveyor equipped, however, with another lift

  stems; and Figure 4 is a fragmentary plan view, to scale

  enlarged, of another mowing and conveying device.

  Figure 1 illustrates a fragment of a mechanism of fau-

  chage equipped with several conveyor devices arranged in juxtaposition transversely to the direction of

  displacement F, and separated from each other by large di-

  rod finders 1. Each device consists of a mowing and conveying rotor 2, upstream of which a rod lifter 3 is located centrally. A cutting disc 5 and two

  conveyor discs 6 are fixed coaxially, superimposed

  spaced apart, to a substantially vertical rotor shaft 4.

  The drive is provided by means of a horizontal drive shaft

  dragging, by means of a bevel gear transmission in the casing 7 from which the shaft 4 is mounted. A support piece 8 extending upwards and forwards, bearing

  the rod lifter 3, is fixed to the casing of said transmission-

  if we. The two conveyor discs 6 rotate together

  in the direction of the arrow shown in Figure 1 and present

  try, on their edge, indentations 9 described in more detail

  below. The rod lifter 3 consists of a shaped sheet.

  It has a point at the front and widens towards the rear.

  Relative to the direction of rotation of the discs 6, its side 3a is qualified as "supply side". A guide finger 10 protrudes from the rear end on this side. It first extends obliquely towards the conveying rotor and forms with the

  circular periphery of the latter, opposite the direction of rotation

  tion, a wedge-shaped interstice for introduction 11. The guide finger 10 then describes an arc of coaxial circle extending beyond two indentations 9, that is to say considerably beyond the maximum width of the lifter rods 3. The finger 10 then extends approximately horizontally and engages, between the two conveying discs 6, substantially at a distance such

  that the indentations 9 are essentially split, observe-

  vees in plan, in a radially outer half and in a

radially inner half.

  The aim of the guide finger 10 is to fully compact, in the radially inner part of the indentations 9, the stems of the harvested product which reach said areas.

  indentations 9 from the first zone of the working width

  vail of the device, so as to provide space for the rods of said product which are in the second zone, and to ensure

their sectioning.

  Another rod lifter 12 illustrated in FIG. 3 pre-

  feels, on its rear side, a configuration such that it acts, strictly speaking, as a rod guiding element. In this case, the introductory wedge gap is

  formed by rounding 13. The remaining part of the confi-

  guration substantially coincides with the circumference of movement

  the tips of the conveyor forks, so that the

  indentations 9 are completely closed in the region of the lar-

stem lifter 12.

  FIG. 4 shows one of the knives 14 mounted in the form of sectors on the cutting disc 5, which have a serrated cutting edge. A collecting bar 15 is placed on edge on each knife 14. The knife 14 extends towards the

  right on the illustration considered. The initial attack area

  that of the bar 15 therefore occupies, in the direction ra-

  dial, a position located more outside than its former

  trailing end. The conveying discs 6, on the other hand, perform a movement to the left. It can be seen that these two discs are mutually offset so that

  points 16 of the conveyor forks of the upper disc accumulated

  feels an advance with respect to points 17 of the conveyor forks of the lower disc. Conveyor sides 18 of said forks are curved so that the tip 16 of these

  accuse forks, opposite a radius 18a tangent to the bomb

  ment, an advance in the direction of rotation; while the outer corner 20 of a non-conveying flank 19 lags behind a radius 19a tangent to the bulging of this flank. A penetration edge 21 of the conveying forks, extending between the tip 16 and the corner 20, contributes to making the stems of the harvested product more easily nestled in the indentations. Because the tip 16 is located more outside, in the radial direction, than the corner 20 of the fork considered, the edge 21

  describes an angle a with the tangent to the circle.

  It goes without saying that many modifications can be made to the device described and shown, without going out

of the scope of the invention.

Claims (9)

-R E V E N D I C A T I ONS-   1. Mowing and conveying device for a pro-   harvested product provided with stems, comprising a rotary disc of sec-   tction equipped with knives on its periphery, and discs   conveyor belts which occupy overlying positions and   try, on their periphery, conveying forks between which there are indentations, the disc of disconnection   and the conveyor discs rotating at peripheral speeds   ques different or in opposite directions of rotation, device characterized in that a rod lifter (3, 12)   installed upstream of the mowing and conveying rotor, sensitive   in the center of the latter's working width, ends at the front with a point and is produced, at the rear end, in the form of a rod guide element which cooperates with said rotor (2 ) mowing and conveying, and which   extends over a partial area of the working width.   2. Mowing and conveying device for a pro-   harvested product provided with stems, comprising a rotary disc of sec-   tction equipped with knives on its periphery, and discs   conveyor belts which occupy overlying positions and   try, on their periphery, conveyor forks between the-   what are the indentations; device in which the cutting disc and the conveying discs rotate at different peripheral speeds or in directions   opposite rotation; and in which bars collectri-   these edges placed at a distance from each other are fixed to the edge of the cutting disc, on the upper face of the latter, bars whose initial attack zone occupies,   in the radial direction, a position located further outside   laughing than the trailing end, said bars extending   at a flattened angle to the tangent of the sec-   operation, device characterized by the fact that a lift   rods (3, 12) installed upstream of the mowing and conveying rotor, substantially at the center of its working width, ends at the front with a point and is produced, at the rear end, under the shape of a rod guiding element which cooperates with said mowing and conveying rotor (2) and which extends over a partial area of the width of work.   3. Mowing and conveying device for a pro-   harvested product provided with stems, comprising a rotary disc of sec-   tction equipped with knives on its periphery, and discs   conveyor belts which occupy overlying positions and   try, on their periphery, conveyor forks between the-   what are the indentations; device in which the cutting disc and the conveying discs rotate at different peripheral speeds or in directions   opposite rotation; in which, moreover, the indenta-   tions of the conveyor discs are curved so that a rod housed in said indentations tends, during a rotation of said conveyor discs, to remain in these indentations because the curvature extends to the   adjacent conveyor fork tip, and partial belt-   LEMENT said rod; and in which the radially outer part   lower conveyor forks for the harvested product   tee fitted with rods, a penetration edge which extends obliquely   than with respect to the tangent of the conveying disc and whose initial zone of attack, forming the point of a fork of   conveying, is located more outside, in the direction   dial, that the trailing end of said edge, device ca-   characterized by the fact that a rod lifter (3, 12) implanted in   upstream of the mowing and conveying rotor, substantially at the center   tre the working width of the latter, ends at the front with a point and is produced, at the rear end, in the form of a rod guide element which cooperates with said rotor (2) of mowing and conveying, and which spans   a partial area of the working width.   4. Device according to any one of the claims   1, 2 or 3, characterized in that a guide finger (10),   attached to the rod lifter (3) as a guide for the rods   ges, extends obliquely towards the mowing rotor (2)   and conveying by forming a wedge-shaped interstice of introduc-   tion (11) from the supply side (3a) of the rod lift, then extends a certain distance beyond the width of said   rod lifters, substantially describing a circular path   coaxial ring in the direction of rotation of the rotor.   5. Device according to any one of the claims   1, 2 or 3, characterized in that the rear side of the support   the stem lifter (12) proper constitutes a rod guiding element, and forms a wedge-shaped interstice for introduction with the circular periphery of the rotor (2) for mowing and conveying. 6. Device according to claim 5, characterized by   the fact that a stirrup, fixed to the rod lifter by its two ends   mites, lavishes its guiding configuration on the posterior side said rod lifter.   7. Device according to claim 4 or 5, characterized   by the fact that the guide finger (10) penetrates between the dis-   conveying ques (6), in the radial direction, up to a part   the depth of the indentations (9).   8. Device according to any one of claims   previous, characterized by the fact that the conveying side (18) of the conveying forks is curved so that the tip (16) of said forks shows, with respect to a radius   (18a) tangent to the bulge, an advance in the direction of ro-   while the outer corner (20) of the non-conveying flank (19) lags behind a tangent radius (19a) to the bulge of this flank.   9. Device according to any one of claims   above, characterized in that the forks of   conveying of several conveying discs (6) arranged in su-   perposition, respectively ensuring a joint conveying, are offset from each other, in the direction of rotation,   in such a way that the tip (16) of the upper forks ac-   cuse a short distance ahead of the tip (17) lower forks.