RU78445U1 - STEPS SUSPENSION OF THE SEWING CLEANER - Google Patents

Abstract

The utility model relates to seed cleaning and sorting machines having a sieve mill with flat sieves, and can be used, in particular, in forestry.

It increases the reliability and durability of the suspension and improves the performance of flat sieves.

To do this, flat springs are attached to the sieve mill by a hinge, and the other end is connected to the brackets by means of coupling devices installed at different heights, which are metal plates of different lengths with the lower end many times bent and the upper one rigidly connected to the frame.

Description

The utility model relates to seed cleaning and sorting machines having a sieve mill with flat sieves, and can be used, in particular, in forestry.

Known seed cleaning and sorting machines have flexible and rigidly fixed suspension sieve mill. The practice of using such pendants has shown the fragility of their work.

As a prototype, the suspension of the sieve mill was chosen, which is a flat spring rigidly fixed to the frame and sieve mill; brackets with stops are installed on both sides of a flat spring (AS USSR No. 1630860, B07B 1/46, 02.28.91. Bull. No. 8).

The disadvantages of the prototype are the fragility of the flat spring and, due to the shaking of the seed material on the sieve web in both directions of movement of the sieve mill, the unloading of the seed material occurs both at the beginning and at the end of the sieve web.

The utility model solves the problem of increasing the reliability and durability of the suspension and increasing the performance of flat sieves.

This is achieved by the fact that in the stepped suspension of the sieve mill of the seed cleaning machine, including flat springs attached at one end to the sieve mill, according to the utility model, flat springs are attached to the sieve mill by a hinge, and the other end is connected to the brackets by means of coupling devices installed at different heights, representing metal plates of different lengths with the lower end many times bent and the upper rigidly connected to the frame.

A structural diagram of the proposed suspension is shown in the drawing: in Fig.1 - side view; figure 2 is a side view of the node I in figure 1 (enlarged).

The suspension includes brackets 2, 3, 4, rigidly fixed on the frame 1, to which flat springs 6 are attached via the coupling devices 5, fixed by hinges 7 to the sieve mill 8.

The suspension of the sieve mill works as follows.

When the reciprocating movement of the sieve mill 8, a flat spring 6, connected through a coupling device 5 with one of the brackets 2, 3 or 4, bends around the lower part of the bracket, as a result of which the sieve mill 8 acquires vertical movement. In this case, upward accelerations occur, under the influence of which a heap is thrown on the surface of the sieves.

To ensure that the heap being thrown is not unloaded at the beginning of the sieve, the brackets are installed only on one side of the suspension - in front. In order to increase the reliability and durability of the suspension, the flat spring 6 is connected to the sieve mill 8 by a hinge 7. To suspend the sieve mill at different levels, which in turn will improve the quality of the sorted seed material, the coupling devices 5 have different lengths and are installed at different heights.

The proposed design of the stepped suspension of the sieve mill allows you to increase its duration and increase the performance of flat sieves.

Claims (1)

The step suspension of the sieve mill of the seed cleaning machine, including flat springs attached at one end to the sieve mill, characterized in that the flat springs are hinged to the sieve mill and connected to the brackets at the other end by means of coupling devices installed at different heights, which are metal plates of different lengths with the lower end repeatedly bent, and the upper end rigidly connected to the frame.