SU1524847A1 - Hopper unloading device for grain combine harvester - Google Patents

Abstract

The invention can be used in agricultural engineering in the design of combine harvesters bins. The discharge device comprises a horizontal screw 2 mounted in the housing 1 of the hopper and placed in the housing 5 an inclined auger 6. The housing 5 is connected to the housing 1 by means of a transitional pipe 4, in which an intermediate auger coil 8 located by a universal joint 7 is connected to the screw shaft 6. Shaft 9 screw 2 is made hollow. The drive of screws 2 and 6 has two belt drives. The driven pulley 11 of one gear is mounted on an intermediate shaft 10 placed in the cavity of the screw auger 2 coaxially and connected with coil 8, while the driven pulley 13 is mounted on the screw auger 2 shaft. The drive mechanism of the screw augers 2 and 6 has a spring loaded drive lever with mounted on it are two coaxial rollers. Each of the rollers is associated with a belt of the corresponding transmission. Gears are made with a common drive pulley. In the process of unloading grain from the hopper, the screw 6 and turn 8 are rotated at a speed greater than the speed of rotation of the screw 2 by making pulleys 11 and 13 with corresponding diameters. 1 hp f-ly, 3 ill.

Description

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sl to

00 4

FIELD OF THE INVENTION The invention relates to agricultural machinery and can be used in the construction of the bins of combine harvesters.

The purpose of the invention is to increase the reliability of the unloading process and productivity.

FIG. 1 schematically shows the unloading device of the combine harvester bin, longitudinal section; in fig. 2 is a view A of FIG. one; in fig. 3 shows a section BB in FIG. 2

The discharge device contains a horizontal screw 2 mounted in the recess of the bottom of the hopper 1 of the bunker with the casing 3 fixed above it and having adjustable dampers (not shown). The casing 5 of the inclined 1 screw is attached to the body 1 through the adapter 4; 1 is pivotally attached; 1 en The universal pipe P1 7 with intermediate technological thread 8 is fixed by means of a crown and bearing assembly (not shown) at the top of the casing 5 it rests on a sub-hub unit (not shown), and in the lower part it is connected to the hinge 7. The shaft 9 of the horizontal screw 2 is hollow. An intermediate shaft 10 is coaxially installed inside the shaft 9, one end of which is connected to coil 8, and the other with driven pulley 1 1 wedge-time gearing 12 for screw drive 2 and 6. Slave П1КИВ 13 of the second V-belt drive is attached to the free end of shaft 9 14 of the drive for augers 2 and 6. The latter also contains a counter-drive shaft with a multi-threaded pin 15, which is the driver P1KIVOM for gears 12 and 14. The diameters of Pikivi 11. 13 and 15 are chosen such that the rotation frequency of coil 8 with inclined P1nec ( the large rotational frequencies of the horizontal 1inc 2, and the rem and gears 12 and 14, with Ut would have the same length.

The mechanism for activating the drive of augers 2 and 6 contains a spring-loaded drive lever 16 driven by a hydraulic cylinder 17 and mounted on a lever 16 a tensioning element 18 inserted in the form of two coaxial rollers 19 and 20, installed with the possibility of independent rotation at the same time each of the rollers 19 and 20 with a belt corresponding to the transmission 12 and 14.

In the upper part of the casing 5, a window with a chute 21 is formed to pour grain into a vehicle (not shown).

The device works as follows.

Before loading the hopper, the gap between the walls of the bottom of the housing 1 and the casing 3 is closed by adjustable flaps, and at the time of unloading the flap smoothly from

5 0 5 0 5

s

0

0

are covered, which prevents overload

devices. The grain is unloaded from the bunker by turning on the hydraulic cylinder 17, under the action of which the lever 16 rotates and, crossing the dead point, turns on the gears 12 and 14. At the same time, the rollers 19 and 20 provide the tension of the transmission belts 12 and 14 without slipping, rotating with different angular speeds corresponding to linear belt speeds. Pulleys 11 and 13, mounted on shafts 10 and 9, respectively, cause the joint 7 to turn 8 and the inclined auger 6 connected to it, as well as the horizontal auger 2. In this case, turn 8 and the inclined auger b rotate with a greater angular velocity than the horizontal screw 2. The grain of the turns of the screw 2 is fed into the pipe 4, where the turn of 8 is pushed into the casing 5 and the turns of the screw 6 is transported to the upper part of the casing 5, and from there through the window with the tray 21 poured into the vehicle.

Due to the increased speed of rotation of the screw coil 8 and the inclined screw 6 compared to the speed of rotation of the horizon; 1n screw 2 does not cause clogging and compaction of grain in the transition nozzle 4, which reduces the load, power consumed by the unloading device and increases its reliability

Claims (2)

1. An unloading device for a grain-harvesting bunker containing a horizontal jaw mounted in the bunker case and a sloped cheek housed in a casing connected to the bunker case by means of a transition nozzle in which an intermediate screw pin is located connected to the shaft of the sloped cheek using a universal the hinge, as well as the drive of screws with the mechanism of inclusion, characterized in that, in order to increase the reliability of the unloading process and productivity, the shaft of the horizontal screw is made hollow, and the auger waters are with two belt drives, the driven latch of one of which is connected with the horizontal shaft, and the driven latch of the other with the auger coil by means of an intermediate shaft placed in the cavity of the horizontal 1 shaft with it coaxially. 2. The device according to claim 1, characterized in that the activation mechanism has a spring-loaded drive lever and a tensioning element mounted thereon, made of two coaxial rollers, each of which is associated with a belt of a corresponding transmission. FIG. 2 15