SU59525A1 - Automatic plow lifting mechanism - Google Patents

Description

Mechanical lifting mechanisms of tractor plow bodies are already known, comprising a closed rotary clutch and a gear transmission to the crank of the machine driven by the plow wheel.

In such mechanisms, gears constituting the gear drive of the machine usually rotate both when the machine is turned on and when it is turned off, which causes unproductive wear of these gears: and results in energy loss.

The proposed automatic plow lifting mechanism aims at eliminating the aforementioned disadvantage of already known mechanisms of the same purpose and is characterized in that the disc of its machine gun is rigidly connected with the gear of the transfer gear, for example, with its smaller gear wheel attached to the field wheel, while the crank of the machine gun is rigidly connected on the other bristle, for example, with a large gear gear that does not work at all when the machine mechanism is turned off.

In FIG. 1 shows schematically a general view of an exemplary shape of an automatic plow lifting mechanism according to the invention, and FIG. 2 is a general view of another exemplary embodiment of the same mechanism.

The disk 12 of the mechanism of the machine is placed on the axis 13 of the field wheel 14 of the tractor plow and is rigidly connected to the 2-gear small gear, coupled to the 3-wheel drive 3 of the crankshaft 4. The axis 13 of the field wheel 14 is mounted on a double-arm lever 1, 8 pivoted on the roller 15 of the plow frame . The shoulder 1 of the lever 1, 8 has a rack 23, at the end of which a roller of the scissors gear is rigidly fixed. The shoulder 8 of the lever 1, 8 is equipped with a shoe 16 at its end, interacting with the suspension 17 connecting the hinge 9 of the shoulder 8 with the hinge 10 of the screw nut 11 that sets plowing depth and supplied with a handle 18. The plowing depth can be set any depending on the length of threading screw 11. Crank 4 is pivotally connected to the leash 5, which in turn is pivotally connected to lever 6 pivoting on the roller 19 of the plow frame. The maximum depth of the plowing is determined by the position of the fixed stop 7 of the frame, which interacts with the lever 6. On the shoulder 1 of the lever 1.8, the machine-activated lever 21, swiveled on the rivet 22, collapses when the machine is in an off position in the disk 12 When the lever 21 is pulled away from the disk 12, for example, with a rope not shown in the drawing and pulled by the tractor driver, the machine turned on and the small gear 2 turned around until the machine 22 turned off, again with the roller 22. ska 12.

Turning gear 2 also leads to turning half gear 3 with crank M 4 (the gear ratio between gears 2, 3 is two) and to converting crank 4 with a leash 5, the first of which takes position 4 when the plowshares are raised, and the second is position 5. Lever 6 is in position b, interacting with stop 7, axis 13 is position 13, and gear 3 is position 3. With raised cases, lever 1, 8 is in position G, 8, and hinge 9 is position 9, and the suspension 17 is position 17, with the hinge 10 of the screw nut 11 moving to position 10, and the whole screw is turned down a little about the sariir 24 of its own bearing. The spring mechanism allows the plow bodies to be raised to the transport position from any tillage depth. FIG. 2 shows a general view of another exemplary form of the mechanism according to the invention, in which, instead of the driver 5 w of the lever 6 (FIG. 1), a connecting rod made of the rod 5 and the sleeve 6 rotatable around the roller 19 is used in the automatic plow lifting mechanisms ( fyg. 2). The maximum lift of the plowshares in the mechanism of FIG. 2 is determined by the position of the stop 7, rigidly fixed on the rod 5 and interacting with the end of the sleeve 6.

In the mechanism of FIG. 2, the hinge 9 of the suspension 17 is fixed to the frame of the plow, and not to the shoulder 8 of the lever 1.8, as is the case in the mechanism of FIG. G, which, of course, is not significant.

The link of the mechanism of FIG. 2 have the same function as the links of the mechanism of FIG. 1, and their designations are made in accordance with the designations of FIG. one.

The subject matter of the invention.

An automatic plow lifting mechanism that encloses a closed rotary clutch and a gear drive that transmits rotation from the plow wheel to the machine crankshaft, characterized in that the machine disk is placed on a common axis with the smaller one and is rigidly connected with it. the axis of the large jaws associated with it, with the aim of eliminating rotation when the machine is turned off.

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