SU1169557A1 - Reaper - Google Patents

Abstract

1. A HEADER, containing upper and lower cutting apparatus, stem lifters mounted on the fingers of the upper cutting apparatus, and a mechanism for changing the height of this apparatus, having sliders mounted in vertical guides, the upper cutting apparatus being mounted on sliders, characterized in that In order to reduce grain losses, the header is equipped with a mechanism to reduce or increase the acute angle between the stem lifters and the horizontal, respectively, when lowering or raising the upper cutting unit. 2. Reaper pop.1, which means that the mechanism for reducing or increasing the acute angle between the horizontal lifters and the horizontal includes a shaft mounted in the sliders with flexible elements wound on it, each of which is connected to a different horizontal elevator, and also a rack mounted rigidly on the header, with (/) what is connected to the rack kinematically with the shaft by means of an asterisk. /

Description

FIELD OF THE INVENTION The invention relates to agricultural machinery, in particular to harvesters, for example, combine harvesters. The purpose of the invention is to reduce the loss of grain. FIG. 1 shows schematically the proposed header, front view in axonometric projection; in fig. 2 - the same, rear view on fig.Z header, side view when the upper position of the upper cutting unit; in fig. 4 - the same, with the average position of the upper cutting apparatus; in fig. 5 - the same, with the lower position of the scientific research institute of the upper cutting apparatus j in FIG. 6 - the same, without the upper cutting apparatus; in fig. 7 is a plan of the lower gear of the header at the central feed of the bevelled mass; in fig. 8 is a section A-A in FIG. 7; in fig. 9 plan of the lower rus header when laterally feeding the bevelled mass; figure 10 - section bb in fig. 9) in FIG. 11 is a sectional view BB in FIG. 9; in fig. 12 lower Russian header, axonometric view; in fig. 13 - plan of the upper deck of the reaper; in fig. 14 is a section of YYY in FIG. 13; in fig. 15 - top finger of the cutting unit with a window lifter; in fig. 16 is a section d-d in FIG. 15; in fig. 17 is a diagram of the installation in the rams of the reel, the drive elements of the upper cutting apparatus and the mechanism for reducing or increasing the acute angle between the window lifters and the horizontal, front view, FIG. 18 — elements of the drive of the upper cutting apparatus installed in the sliders and the shaft of the mechanism for decreasing or increasing the acute angle between the elevator and the horizontal; Fig. 19 shows the mechanism for raising and lowering the reel of the header. The header contains sidewalls 1 in which the slots 2 are formed to form vertical guides 3, the upper cutting unit A, the lower cutting unit 5 and the lifting ram 6 mounted on the fingers 7 of the upper cutting unit 4. The cutting unit 4 is mounted on mounted in the guides 3 sliders 8 of the mechanism for varying the height of the upper cutting apparatus. This mechanism also has a hydraulic device 9 for displacing the cutting unit 4 vertically. The harvester also contains a reel 10 mounted on sliders 11, which are connected to the sliders 8 by means of an articulated parallelogram 12 and an Hz cylinder 13. One of the sliders 11 has a rotary drive box 14 of the reel 10. The upper cutting apparatus 4 has a bar 16 in the form of a non-equal angle angle, on which fingers 7 are mounted, as well as plates 17 with buttons 18. Stack lifters 6 are hinged on fingers 7 and have a mechanism for reducing or increasing the acute angle between the stem lifters and the horizontal, respectively, when lowering or raising the upper cutting unit. This mechanism comprises a shaft 19 mounted on sliders 8 with flexible elements wound around it, in the form of wires 20, each of which is connected to a corresponding lifting lifter 6 by means of a hook 21. The shaft 19 is rigidly connected to an asterisk 22 which is in engagement with the toothed rack 23, rigidly mounted on one of the sides 1. The lower Russian header with the lower cutting unit 5 has a plank conveyor and a rear wall 24 to which a semi-cylindrical trough 25 is attached to the rear with a window 26 formed in its middle and a folding ring 27. A screw 28 is installed in the groove. A window 29 is made in the wall 24, which can be covered by a bolt 30 and a slot 31 for the apron 32. The cutting unit 5 has a drive 33 which, like other drives, is connected to a common drive chain 34. The apron 32 is connected to the plate 17 by means of buttons 18, passed through a slit 31 around the chute 25 and connected to a spring 35. A hole is made in the apron that coincides with the window 26. A piece of fabric 36 is provided to block this hole, after the apron 32 is passed through slot 31 is thrown over h folding rings 27 to allow the skewed mass to pass through the window. 26

3

The conveyor is made of transverse sections 37 and a longitudinal section 38 with the possibility of central or lateral feed of the bevelled mass.

The work of the header is carried out as follows.

The upper cutting apparatus 4 is pre-adjusted to the height of grain by means of a hydraulic device 9. In the case of lowering the cutting apparatus 4, the shaft 19 rotates and the wire 20 rotates on this shaft, change the angle of inclination with It is the very best of the stem lifters to find a certain distance from the soil surface, which is necessary for the quality of the harvest. When lifting the cutting unit 4, the angle of inclination of the window lifters 6 changes in the opposite direction (the acute angle increases).

When the height of the upper cutting unit 4 is changed, the tension of the apron 32 is provided by the spring 35.

574

Steample lifting geeks 6 provide a lift, and under the upper cutting apparatus 4 half-curved and entangled stems, and also support the stems in strong winds. The cut ears get into the cheeks 28, collecting them to the window 26, from where they enter the combine thresher (not shown).

The lower cutting unit 5, which is offset by 20-25 cm from the upper one, cuts off the stems that are placed in a swath by the conveyor.

The distance from the reel 10 to the upper machine is controlled by a hydraulic cylinder 13.

Work of a harvester is possible only with the lower cutting device 5 (on short stem crops). For this, the lifter 6 is removed, the upper cutting device 4 is lowered all the way down and retracted using the horizontal section of slot 2 (Fig. 6) ..

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Claims (2)

1. HEADER, containing the upper and lower cutting devices, stem lifters mounted on the fingers of the upper cutting device, and a mechanism for changing the height of this device, having sliders installed so that, in order to reduce grain losses, the header is equipped with a mechanism to reduce or increase an acute angle between the stem lifters and the horizontal, respectively, when lowering or raising the upper cutting apparatus. 2. Header pop. 1, characterized in that the mechanism for reducing, or increasing the acute angle between the window lifters and the horizontal contains a shaft mounted in sliders with flexible elements wound around it, each of which is connected to the corresponding window lifter, and established