SU1678236A1 - Driving mechanism for farm machines - Google Patents

Description

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(21) 4769697/15 (22) 13.12.89 (46) 09.23.91. Bul No. 35 (75) A.V. Titenok (53) 631.352.2 (088.8)

(56) Patent of Germany No. 1212332, cl. A 01 D 55/26, 1966.

(54) MECHANISM OF THE DRIVE OF AGRICULTURAL MACHINES

(57) The invention relates to agricultural machinery and can be used in the construction of mowers and headers. The purpose of the invention is to improve the quality of the cut by providing adjustment of the angle of rotation of the fork. The goal is achieved by the fact that the crank shaft is made in the form of a two-link mechanism, both Evens 2 and 3 of which are pivotally connected to each other, as well as to the drive shaft 1 and the adjusting device by the hinges 5. A cross piece 6 is installed on the link 2 and the fork 7 The adjusting device consists of axis 8, fixed to frame 9 by means of bearings 10 and equipped with head 11, nut 12 and lock nut 13, as well as chassis member 4 When the axis 8 rotates with a wrench with a fixed shaft 1, the chassis member 4 moves, causing changing the rotation angle of the plug 1 yl

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FIELD OF THE INVENTION The invention relates to agricultural machinery and can be used in the structures of mowers and headers.

The purpose of the invention is to improve the cut quality by providing adjustment of the angle of rotation of the fork.

The drawing shows a diagram of the drive mechanism.

The drive mechanism includes a drive shaft 1, a crank shaft, made in the form of a two-link mechanism, the lead 2 and the driven 3 link of which are interconnected, as well as with the drive shaft 1 and the driving element 4 of the adjusting device by means of hinges 5. On the drive the link 2 is located the crosspiece 6, to which is attached a nugget 7. The running element 4 is threadedly connected to an axis 8 fixedly mounted in a frame unit 9 containing angular contact bearings 10. Axis 0 is equipped with a wrench 11, a threaded shaft and cre ezhnoy nut 12 with a locking device, a lock nut 13. The drive shaft 4 and elements 1 and 8, the adjusting means are arranged coaxial. The axes of the drive shaft 1, the driving link 2 and the crossings 6 intersect at one point.

The adjustment of the drive mechanism and its operation are carried out as follows.

The wrench 11 holds the head 11 and unscrews the lock nut 13, then, turning the wrench 8 in the required direction, moves the driving element 4

changing the angle and the inclination of the cross 6 relative to the vertical axis, thus adjusting the drive parameters.

After setting the required value of the angle a, tighten the lock nut 13 and turn on the drive mechanism. Torque is transmitted from the drive shaft 1 to the driven link 2 of the crank shaft, and then to the crossbar 6, which converts; rotational motion in oscillatory, transmitted to the plug 7 and further - to the elements of the mechanisms that make reciprocating movement.

The technical and economic efficiency of the application of the invention is to simplify the adjustment of the parameters of the reciprocating movement and, consequently, to expand the technological capabilities of the device.

Claims (1)

The invention The drive mechanism of agricultural machines, comprising a frame, wired and crank shafts, a cross and a fork, is characterized in that, in order to improve the cut quality by ensuring the adjustment of the angle of rotation of the fork, the drive mechanism is equipped with an adjusting device containing an axis pivotally mounted on the frame, and a chassis element mounted on the axis by means of a threaded connection, the crank shaft being designed as a two-link mechanism, both links of which are pivotally connected between the wallpaper, as well as to the drive shaft and the running member.