RU144485U1 - Corn grinder - Google Patents

Abstract

1. Corn thresher containing a hopper, a working disk with metal rods, a disk rotation mechanism, characterized in that the metal rods are connected to the working disk by means of a threaded connection. Corn grinder according to claim 1, characterized in that the metal rods are made of screws or bolts that are attached to the disk with nuts. Corn grinder according to claim 1, characterized in that on the periphery of the Central part of the working disk made ventilation holes.

Description

The utility model relates to agriculture, in particular, to machines for the post-harvest processing of ears of corn and can be used to peel the ears of corn in farms and subsidiary plots.

Known thresher for threshing corn cobs in a wrapper containing a loading hopper with a shutter, a cylindrical drum with a protective cover and an unloading window with a gate, a threshing drum including a working disk, a bevel gear, a telescopic driveshaft, an arm, support legs and jumpers, a conical discharge chute and a hitch system, (RF patent No. 62769 for utility model, IPC A01F 11/06). This design is selected as a prototype.

In this model of the thresher, metal rods are attached to the upper part of its working disk by welding: 15 mm high, staggered over eight sections of the metal disk with a pitch of 40 mm.

The disadvantage of this design is the increased complexity of manufacturing and poor maintainability due to the use of welding to connect metal rods.

The objective of this utility model is to reduce the complexity of manufacturing, by eliminating the welding operation of metal rods, increase maintainability through the use of removable rods.

This problem is solved due to the fact that the corn grinder containing a hopper, a working disk with metal rods, a disk rotation mechanism, according to a utility model, the metal rods are connected to the working disk by means of a threaded connection.

In the corn thresher, metal rods are made of screws or bolts that are attached to the disk with nuts; one of the nuts is a lock nut.

Along the periphery of the central part of the disk ventilation holes are made.

By replacing the welded joint with a threaded one, the technology is simplified without loss of performance. Maintainability is improved by individually replacing the rods.

Conducted patent studies have shown compliance of the claimed device with the criterion of "novelty."

This device can be manufactured industrially, therefore it meets the criterion of "industrial applicability.

The essence of the utility model is illustrated by the drawing, in which Fig. 1 shows a General view in section of the corn grinder; figure 2 and figure 3 - working disk; figure 4 - ring with a cover.

The design of the hoe is presented in figure 1.

Main nodes:

- 1 single-phase asynchronous electric motor with a useful power of 250 W with a rotor speed of 1500 rpm;

- hopper 2 with a useful capacity of 16.5 liters is made of 1.5 mm sheet, the bottom is made of 2.5 mm sheet. A ring 3 with a cover 4 is fixed in the upper part of the hopper, which prevents corn ears and grains from flying when peeling, the cover serves to fill the hopper with ears and remove waste from the hopper after peeling the ears. The lid on the ring is fixed on the hinge and, when operated, is closed on the latch 5;

- the working disk assembly 6. The working disk is equipped with rods 7 for peeling corn grains, the number of which is 16 and they are located on diameters 190, 170, 200 and 230 (4 pieces on each diameter). The protruding part of the rods is 11.5 per ⌀ 9.5 mm, M5 screws or bolts are used as rods, with an increase in the volume of the product, screws or bolts of large diameters up to 16 mm can be used. Screws or bolts are attached to the disk with nuts; one of the nuts is a lock nut. This greatly improves maintainability through the use of removable rods.

There are 8 ventilation openings in the working disk 8 ⌀ 10 (quantity and diameter may be different). Holes are used to remove corn and husk grains from the hopper. On the disk at the bottom are two blades 9 also for removing the product;

- disk rotation mechanism. V-belt transmission (K = 2.18) is used in the hoe to lower the speed.

The driving pulley 10 is located on the shaft of the electric motor, the driven pulley 11 on the shaft of the hub 12 of the working disk and is driven into rotation by the V-belt 13;

- product exit from the hopper. In the lower part of the hopper, a removable tray 14 is fixed for supplying threshed grains to the container;

- the working direction of the disk rotation is left, the rotor of the electric motor is right (other options are possible);

- the product is installed on a horizontal surface during operation, can be attached through holes in the base.

The optimal loading of the hopper with dry ears is 2 kg (5 l), the estimated peeling capacity is 200-250 kg / h. The inventive corn thresher is designed primarily for husking corn, however, the design allows the change of the working disk (husking disk) to other working bodies intended for other work - grinding root crops, vegetables, fruits, obtaining pulp from juice-containing products.

Before starting work, 2 kg (5 l) of dry corncobs are poured into the hopper, the lid is closed and the electric motor is turned on, the disk is rotated through the belt drive, corncobs are pressed against the walls of the hopper and the disk by centrifugal force, the rods striking the cobs, make them mix (move randomly up and down while spinning). From impacts on the kernels of grain fly off from the cobs, in the beginning in small quantities, then massively, and the process of peeling quickly ends (peeling time of 2 kg of cobs about 16-20 seconds).

Claims (3)

1. Corn thresher containing a hopper, a working disk with metal rods, a disk rotation mechanism, characterized in that the metal rods are connected to the working disk by means of a threaded connection. 2. Corn grinder according to claim 1, characterized in that the metal rods are made of screws or bolts that are attached to the disk with nuts. 3. Corn grinder according to claim 1, characterized in that on the periphery of the Central part of the working disk made ventilation holes.