SU959671A1 - Grain combine harvester inclined chamber - Google Patents

Description

(54) TILTING CHAMBER OF A GRAIN HARVESTING COMBINE

one

The invention relates to agricultural machinery, specifically to the inclined chambers of a combine harvester, and can be used to feed vegetal mass into a combine threshing machine.

A device comprising a housing with flaps at the inlet, a device for transporting grain mass, a device for separating grain, a leveler in the form of a transversely auger with versatile winding, a divider Q with ribs under the screw 1 are known.

The disadvantages of the known device were the impossibility of a uniform distribution over the width of the bread mass chamber with different initial distribution.: 15

These drawbacks are due to the fact that the bread grain spreading device in the form of a transversely located auger does not ensure uniform distribution with different initial distribution.

A tilted chamber is also known, comprising a housing with a convex bottom and side walls, a conveyor belt, passive leveling ribs placed on the bottom at a converging angle to the direction of mass movement, less than the angle of friction of the mass of the edge material. The angle of the ribs may vary depending on the type of crop being harvested and its condition.

The device provides, by increasing the time of action, a better alignment of the grain mass to the width of the inclined chamber 2.

However, this device does not provide a uniform alignment of the grain mass in width with its different initial distribution at the entrance to the inclined chamber.

The disadvantages are due to the fact that the passive screed ribs distribute the mass only from the middle of the inclined chamber to its side walls.

Known inclined camera combine harvester, comprising a housing in which are placed one above the other conveyors with transverse slats and a drive mechanism for the conveyors 3.

A disadvantage of the known chamber is the uneven distribution of the grain mass across the width of the inclined chamber.

The purpose of the invention is to ensure an even distribution of the grain mass across the width of the inclined chamber.

This goal is achieved by the fact that in the device on each rail of the conveyors inclined ribs are made, which on adjacent surfaces of the conveyors are arranged converging in the direction of supply of the grain mass, and the drive of one of the conveyors is equipped with a variator and the angle of inclination of the ribs is less than the angle of the grain mass about the ribs .

FIG. 1 shows an inclined camera of a combine harvester, side view; in fig. 2 is a view A of FIG. one; in fig. 3 is a view B in FIG. one.

The inclined chamber (Fig. 1) includes a housing 1 with a bottom 2 and side walls 3. Above the bottom 2 are located one above the other top 4 and bottom 5 chain-slat conveyors that have front driven drums 6 and 7, which are receiving, rear leading 8 and 9 and endless chains thrown over them 10 and 11 with transverse strips 12 and 13.

Slats 12 and 13 (fig. 2) of conveyors 4 and 5 are provided with leveling ribs in the form of reefs 14 and 15 placed to the direction of supply of the grain mass at an angle smaller than the angle of friction of the bread mass of the reef material. In this case, on the interacting branches, reefs 14 on the slats 12 of the upper conveyor 4 and reefs 15 on the slats 13 of the upper conveyor 5 are made converging in the direction of supply of the grain mass.

Thus, reefs 14 and 15 on the interacting branches of the conveyors are mirrored.

The rear driving drum 9 of the lower conveyor 5 is driven from the rear leading drum 8 of the upper conveyor 4 by a variator, for example, a V-belt, which allows the speed of the lower conveyor 5 to vary relative to the upper 4 and ensure the movement of both conveyors at different speeds.

V-belt variator includes adjustable pulleys 16 and 17, mounted on the rear leading drums 8 and 9 and V-belt.

Inclined - the camera works as follows.

The grain mass entering the inclined chamber is captured by the upper 4 and lower 5 conveyors and, at the same time as being transported, is aligned with the width of the chamber. The alignment is achieved by the fact that the strips 12 and 13 with reefs 14 and 15 in the interacting branches of the conveyors move at different speeds. At the same time, the reefs of both transporters slip relative to the grain mass.

In places of the greatest accumulation of grain mass, the reefs interact with the stems with great effort and simultaneously with transportation they level it across the width of the inclined chamber. The required leveling level is achieved by selecting the speed of the laths 13 of the lower conveyor 5 relative to the laths 12 of the upper conveyor 4. The speed of the laths of the lower conveyor relative to the laths of the upper conveyor depends on the type of crop being removed, the condition and the initial distribution of the grain mass.

For example, if the initial distribution has a maximum in the middle and a minimum along the edges of the grain mass flow, then in the interacting branches the planks 13 of the lower conveyor must move at a speed lower than the speed of the planks of the upper conveyor. Conversely, if the initial distribution has a maximum along the edges and a minimum in the middle of the grain mass flow, then the slats 13 of the lower conveyor must have a speed greater than the speed of the slats 12 of the upper conveyor.

The magnitude of the difference in the speeds of movement of the strips 12 and 13 of the upper and lower conveyors is determined by the degree of coupling of the grain mass to the width of the flow.

With a uniform initial distribution of the grain mass across the flow width, the speeds of the slats of both conveyors are set to be the same.

The invention provides a uniform alignment of the plant mass across the width of the inclined chamber, regardless of its

 initial distribution and provides, when using an inclined chamber, an increase in the throughput of the thresher. In addition, the work of the separating bodies is improved, the unevenness of wear along the length of the scourges of the threshing drum and concave straps is eliminated, the quality of the threshing is improved, reduced by; teri

Claims (3)

1. The inclined chamber of the combine harvester, its s neighing case, in which conveyors with transverse strips and the conveyor drive mechanism are placed one on top of the other, characterized in that, in order to evenly distribute the grain mass across the width of each conveyor belt, which are located on adjacent surfaces of the conveyors are converging in the direction of supply of the grain mass, and the drive of one of the conveyors is provided with a variator. 2. A camera according to claim 1, characterized in that the angle of inclination of the ribs is less than the angle of friction of the bread mass against the ribs. Sources of information taken into account in the examination 1. USSR author's certificate number 668644, cl. A 01 D 41/12, 1979. 2. USSR author's certificate number 712057, cl. A 01 D 41/12, 1977. 3. Authors' Union of USSR № 28073, cl. A 01 F 12/18, 1931. G1; ,, l Pg / /// WITH /// ar 7 figure 1 ABOUT /// /// // -J  / 5/3 Fig.Z