RU2818117C1 - Mechanism for winding and unwinding protective shutter of feed harvester apparatus - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: mechanism for winding and unwinding the protective shutter of the feed harvester apparatus is placed outside the working zone of the protective shutter, fixed on the shutter flange, rigidly coupled with shaft (5), which is a piece of a round pipe, on which the protective shutter is wound and from which is unwound, and is equipped with flat spring (2) installed in the housing of the mechanism, sliding bushing (4) and bearing (3).

EFFECT: expanded harvester operating performances due to higher reliability of winding/unwinding mechanism, improved consumer appeal and harvester ease of use.

1 cl, 2 dwg

Description

/The invention relates to the field of agricultural engineering, namely, to forage harvesters, which include a protective curtain for the feeding apparatus.

Known forage harvesters from the companies “Claas”, “New Holland”, “Krone”, “John Deer” [1. The new 8000 series self-propelled Forage Harvesters. -John Deer Prospectus. Website www.JohnDeer.com. 2. Built for the job. Self-propelled Forage Harvesters. - John Deer Company Prospectus. Website www.deere.com/Ag. 3. New Holland FR9000 series Forage Harvesters. - New Holland Company Prospectus. Website www.newholland.com/na. 4. Krone. Big X forage harvester - Krone brochure. Website www.Krone.de], the units of which are equipped with protective curtains with rewinding mechanisms.

The closest thing to the claimed invention is the Jaguar 980 forage harvester from Claas [Operating Manual Jaguar 980-930, CLAAS. Website www.claas.com], a mechanism for winding the fabric, located above the feeding apparatus, in the working area of the protective curtain fabric, which is a housing in the form of a piece of round pipe, into which a cylindrical spring is inserted along its entire length. The mechanism is driven by applying force to unwind the curtain fabric, after which the spring of the mechanism is deformed, and a force is created to tension the curtain in a fixed state or rewind it.

The design of the prototype mechanism for rewinding the canvas of the Jaguar 980 forage harvester has the following disadvantages:

1) if it is necessary to replace the spring, the entire mechanism must be removed from the combine;

2) in order to remove the spring from the pipe, it is necessary to completely disassemble the assembly unit;

3) the impossibility of regulating the force of winding/unwinding the fabric.

The objective of the invention is to expand the functionality of the combine by increasing the reliability of the winding/unwinding mechanism, improving the consumer qualities and ease of operation of the combine.

To achieve the specified technical result, the claimed mechanism for winding and unwinding the protective shutter of the feeding forage harvester apparatus is placed outside the working area of the protective shutter, fixed to the flange of the shutter, and rigidly coupled to a shaft, which is a section of a round pipe, onto which the protective shutter is wound and from which it is unwound, and is equipped with a flat spring, a sliding sleeve and a bearing installed in the mechanism body.

In addition, the mechanism is designed to allow manual adjustment of the winding and unwinding force of the protective curtain due to the deformation of the flat spring. To do this, the mechanism is fixed on the outer part of the case and the mechanism shaft is rotated: the more the shaft is wound, the more force the spring creates. After this, the shaft of the mechanism is mated with the shaft of the protective curtain. Reducing the friction force through the use of bearings increases the reliability of the mechanism as a whole.

The inventive device is illustrated by the drawings shown in Fig. 12:

- fig. 1 - general view of the mechanism for winding/unwinding the protective curtain;

- fig. 2 - structural drawing of the winding/unwinding mechanism.

The inventive mechanism for winding/unwinding the protective curtain includes the following structural elements (Fig. 1, 2): 1 - housing axis; 2 - flat spring; 3 - bearing; 4 - sliding bushing; 5 - mechanism shaft; 6 - ring; 7 - mechanism cover; 8 - flange; 9 - protective curtain, with a flat spring installed in the mechanism body and secured in it by engaging with two edges.

The claimed invention works as follows. By fixing the ends of the spring 2 in the groove of the axis 1 of the housing and in the hole of the ring 6, which is associated with the rotating shaft 5, due to the rotation of the shaft 5 in the spring 2, resistance is created, which increases with further rotation. To reduce the friction force, bearings 3 and a sliding bushing 4 are used in the mechanism. The mechanism is closed with a cover 7. When the mechanism is assembled, the spring is tensioned by twisting the rotating shaft and the mechanism is installed on the flange 8 of the protective shutter 9. After this, the mechanism is mated with the shaft by the protective shutter.

The technical result consists in increasing reliability by reducing the friction force due to the use of bearings and improving the consumer qualities of the forage harvester by increasing reliability and improving maintainability of the mechanism for winding/unwinding the protective curtain of the feeding apparatus.

Claims (2)

1. The mechanism for winding and unwinding the protective curtain of the feeding forage harvester apparatus, characterized by the fact that it is placed outside the working area of the protective curtain, fixed on the flange of the curtain, and is rigidly coupled to a shaft, which is a piece of round pipe, on which the protective curtain is wound and from which the protective curtain is wound curtain, and is equipped with a flat spring, a sliding sleeve and a bearing installed in the mechanism body. 2. The mechanism for winding and unwinding the protective curtain of the feeding forage harvester apparatus according to claim 1, characterized in that it is designed with the ability to manually adjust the force of winding and unwinding.