RU210297U1 - Device for regulating grain supply - Google Patents

Abstract

The utility model relates to agricultural engineering and can be used to control the supply of grain to the unloading device of a combine harvester. The purpose of this device is to reduce the load on the movable shields. This goal is achieved by the arrangement of the movable shields vertically, in contrast to their inclined arrangement on the operated devices. Reducing the pressure will make it possible to replace the hydraulic grain feed control drive with an electric one, which will make it possible to install a device for grain feed control on any combine harvester, regardless of the presence of free hydraulic outlets. The advantage of this device also lies in the simplicity of the design, which allows two movable shields to be set in motion due to one connection.

Description

The utility model relates to combine construction, in particular to devices for controlling the supply of material.

It is known the unloading device of the hopper of a combine harvester (RF patent No. 2148902, A01F 12/60), containing a horizontal auger installed in the hopper on bearings under movable shields made of two parts, and one part located closer to the unloading auger has a constant clearance. The disadvantage of the device is that part of the adjustable dampers is made with a constant gap, and this leads to an increase in the energy consumption of the drive, especially at the initial moment of grain unloading. When unloading grain with different weight characteristics, a constant gap does not determine the optimal opening of the dampers, and when the second part of the dampers is opened, the energy intensity of the device increases due to the effect of the entire mass of grain in the hopper along the entire length of the auger. In addition, a lot of effort is required to move due to the installation of the shutters at an angle and significant grain pressure on them.

It is also known the unloading device of the bunker of a combine harvester, taken as a prototype (Instruction for operation and maintenance. Combine harvester self-propelled PCM-101 "Vector", pp. on bearings, a horizontal auger under a casing covering the entire length with an adjustable clearance from the bottom of the bunker. The disadvantage of the device is that the opening of the movable flaps is made by mechanical movement along the entire length of the auger and does not allow you to set the optimal clearance for maximum grain unloading performance. In addition, it is necessary to adjust the gap when switching to another crop, changing grain moisture, and a mechanical drive requires a lot of labor during regulation.

The purpose of the utility model is to reduce the pressure on the movable flaps of the device for regulating the grain supply.

This goal is achieved by installing movable shields on the U-shaped casing vertically. In this position, the minimum resistance of the grain is obtained when moving the movable flaps upwards.

The principle of operation of the device for regulating the supply of grain is as follows. Moving the stem of the linear actuator 5 downwards rotates the rocker arms with slots 1, rigidly fixed on the rotary shafts 6. At the same time, the rods 3 lift the movable shields 7 upward and the grain flows by gravity along the walls of the hopper 4 to the horizontal auger 2. After unloading, the movable shields are lowered and access grain to the horizontal auger overlaps.

Claims (1)

A device for regulating the supply of grain, characterized in that it has a hopper connected to the hopper and placed in a U-shaped casing with a horizontal auger, a linear actuator with a moving rod and two rotary shafts with rocker arms and rods for moving movable shields that regulate the flow of grain to the auger , moreover, the rocker arms have slots and are rigidly fixed on the rotary shafts, the actuator rod is in communication with the rocker arms, and the movable shields are mounted vertically on the U-shaped casing.

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