RU57550U1 - FINGER OF THE CUTTING MACHINE OF AGRICULTURAL MACHINES - Google Patents

Abstract

The inventive utility model relates to the field of agricultural engineering, and can be used in other machines having a cutting apparatus. The proposed technical solution is a finger, consisting of two parts - the upper and lower with opposing edges. In this case, the upper part is removable and has a plane of contact with the attachment point and a spring-loaded plane of the location of the opposing edges. The groove for accommodating the cutting elements is made in the lower part of the finger, and its width is determined as the sum of the thicknesses of the cutting elements, the upper part of the finger and the total clearance between the cutting elements and the opposing edges. Moreover, the groove for accommodating the cutting elements additionally serves to accommodate the upper removable part of the finger. The inventive finger is easy to assemble and manufacture, since the manufacture of the inventive finger requires fewer dies and does not require welding, thereby reducing its cost.

Description

The inventive utility model relates to the field of agricultural engineering, and can be used in other machines having a cutting apparatus.

A double finger is known for the cutting apparatus of agricultural machines of the company SHUMACHER (Advertising brochure of the company SHUMACHER, Appendix to the application materials). It consists of three stamped elements: lower, upper and middle parts. All three parts are inextricably interconnected. In this case, the middle and upper parts of the double finger have opposing edges and form a groove for accommodating the cutting elements.

The disadvantages of this prototype are:

- the complexity of the design (the presence of a large number of components);

- the need for separate dies for the manufacture of each of the components of the finger;

- special finger assembly technology;

- the high cost of the finger, as a consequence of the above disadvantages.

The claimed technical solution allows to simplify the design of the finger, the process of its manufacture and assembly, as well as reduce its cost.

To achieve this result, the claimed technical solution is a finger, consisting of two parts - upper and lower with opposing edges. In this case, the upper part is removable, has a plane of abutment to the place of attachment and a spring-loaded plane of location

opposing edges, and the groove for accommodating the cutting elements is made in the lower part of the finger and its width is determined as the sum of the thicknesses of the cutting elements, the upper part of the finger and the total gap between the cutting elements and the opposing edges. The inventive finger is easy to assemble and manufacture, since the manufacture of the inventive finger requires fewer dies and does not require welding, thereby reducing its cost.

Distinctive features of the proposed technical solution is that the finger consists of two parts, is made detachable, and the groove serves to accommodate the cutting elements and the upper part, which, in turn, has a plane of contact with the finger beam and a spring-loaded plane of the location of the opposing edges.

Due to the presence of these signs, the design of the finger is simplified, its manufacturing process and its cost is reduced.

The claimed technical solution is presented in figures 1-4.

Figure 1 shows a General view of a double finger.

Figure 2 is a longitudinal section of a finger assembly.

Figure 3 - the upper part of the double finger.

Figure 4 - the lower part of the double finger.

The double fingers 1 in the assembly are an integral part of the cutting apparatus of the reaping machine (not shown in Fig.) And are attached to the beam 2 during assembly (Fig. 1).

Figure 2 shows the double fingers 1 Assembly. They consist of a lower part 3, an upper removable part 4, a groove 5 for accommodating the upper part 4 and cutting elements (segments) 6 with cutting edges 7 (Fig. 1), rigidly fixed to the knife strip 8. The width of the groove 5 is determined as the sum of the thicknesses segments 6, the upper part 4 and the gaps between them and the lower part 3 of the finger 1, which provides free movement of the segments 6 during operation of the cutting apparatus. Top 4 and bottom 3

parts of the double finger 1 through the gasket 9, the beam 2 and the friction plate 10 are rigidly connected using a bolt 11. The lower part 3 has a protrusion 12, forming a groove 5.

Figure 3 shows the design of the upper part 4, having an abutment plane 13 and a spring-loaded plane 14 with opposing edges 15. Moreover, the spring-loaded plane 14 with opposing edges 15 is deflected relative to the abutment plane 13 by an angle α, the magnitude of which is 2 °.

Figure 4 shows the design of the lower part 3 of the double finger 1, having cutting edges 16 and a protrusion 12, forming a groove 5.

The device operates as follows. When the header moves, the knife band 8 with segments 6 fixed on it carries out reciprocating motion in the grooves 5 of the double fingers 1. At this time, the stems of the cut plants come into contact with the cutting edges of 7 segments 6 and the opposing edges 15 and 16 of the double fingers 1, in As a result, the harvested plants are cut. The presence of a spring-loaded plane 14 allows you to maintain a constant gap between the cutting edges 7 of the segments 6 and the opposing edges 15 and 16 of the claimed finger, which, in turn, provides a high-quality cut of plants.

Claims (1)

The finger of the cutting apparatus of the reaping agricultural machines, including the upper and lower parts, the opposing edges, and a groove for accommodating the cutting elements, characterized in that the finger is detachable, while the upper part has a plane of contact with the attachment point and a spring-loaded plane of the location of the opposing edges, the groove for accommodating the cutting elements is made in the lower part of the finger and additionally serves to place the upper part of the finger, and its width is defined as the sum of the thicknesses of the cutting elements, ver her finger portion and the total clearance between the cutting elements and counteracting edges.