SU1240384A2 - Reel - Google Patents

Description

one

The invention relate. for agricultural machinery, namely for the reel of machines for harvesting grain and other plants, including those laid down.

The purpose of the invention is to expand the range of use of the reel in various harvesting conditions.

Fig. 1 is a schematic diagram of the reel, side view in Fig. 2, sectional view AGA in Fig. 1.

The proposed reel contains a shaft 1 with a rake installed on us 2, on which spring fingers 3 are fixed. The ram 2 by means of the crank 4 is connected to the beam 5 of the eccentric mechanism 6. The reel also contains a crank mechanism, the connecting rod 7 of which is connected to the roller bar 8 mechanism 6, and crank 9 through chain transmission 10 is connected to shaft 1 with a gear ratio equal to the number of rake lines 2. Rod 7 is made adjustable.

The reel works as follows.

When the machine is moving, the fingers of the 3 rakes 2 enter the grain mass at an angle close to the vertical position. Crank 9 is in its extreme forward position at this time. As the crank 9 rotates, it moves the crank 7 and with it the roller bar 8 backwards, as a result of which the angle of the fingers 3 of the tine arm 2 gradually increases. By the time of the approach of the fingers 3 tines 2 to the cutting apparatus, this angle reaches a maximum value and the stems of the plants are about

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40384J

 The tines 3 are raised and securely fixed on the fingers 3 rakes 2, and crank 9 is in the extreme right position. With a further 5 turns, the crank 9 moves the roller bar 8 already forward, the angle of inclination is. on fingers, 3 tines 2 gradually decreases and, when approaching the auger, becomes close to vertical. This ensures a free mass flow from the fingers 3 of the tine arm 2, and the red crank 9 at this time again occupies the extreme front position.

Thus, due to the gradual change in the angle of inclination of the tines 2 during operation, the ends of the fingers 3 describe the vector shown in FIG.

During the rotation of the shaft 1 of the reel to the angle between two adjacent rakes 2, the crank 9 must make a full turn so that the next rake 2 enters the grain mass at the same angle as before. Therefore, the gear ratio of crank 9 and shaft 1 reel should be equal to the number of tines.

The angle of tine 2 at the moment of their entry and exit from the grain mass 30 is determined by the length of the connecting rod 7 and the mutual position of the shaft 1 of the reel and crank 9 according to the angle of rotation.

The proposed reel can be used for cleaning as laid down, such as and the surrounding plants. To clean the latter, it is enough to turn off the crank drive 9, and fix the connecting rod 7.

Adjusting the tilt angle of tines 2 depending on the state of the stem is carried out by changing the length of the connecting rod 7.

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VNIShSh Order 3421/1 Circulation 679

Random polygons pr-tie, Uzhgorod, st. Project, 4

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Claims (1)

REEL for auto No. 1063315, characterized in that, in order to expand the range of use of the reel in various harvesting conditions, the kinematic connection of the crank of the crank mechanism with the shaft of the reel is made with a gear ratio equal to the number of rakes.