SU29058A1 - Automatic lifting device for friction clutch plow frames - Google Patents

Description

This invention relates to automatic lifting devices for plow frames using a friction clutch whose half-sheaves are intermittently engaged. In the proposed clutch half clutch machine, there are rollers eccentrically mounted on the axles of the swiveling levers of one part of the clutch and equipped with a grooved rim enclosing the annular protrusion of the second part of the clutch.

In FIG. 1 shows the appearance of the automaton on one side; FIG. 2-axial section of the same machine; FIG. 3 - external view of the same machine on the other side.

To transfer from (operating position to transport in tractor plows, there is a corresponding automatically acting device, which is called an automatic device.

After the tractor driver pulls the rope attached to the trigger arm, the lifting devices (automatic) turn on and unload the plow bodies, removing them from the soil to a position above the field up to 100 mm in height. After the climb is complete, the fixture locks automatically.

and the plow remains in transport position. For long-distance transport, an additional lift is made using manual levers. To transfer the plow from the transport position to the working tractor driver again pulls the rope, after which the plow is lowered and, having crashed its hulls into the soil, continues plowing. The device and the operation of the automaton are in the following. On the JO axis of the field wheel, an automatic gearbox is mounted, which receives rotation from the wheel through v1 of the stupa 5, which in this case is a keyway, the wheels with the automatic gearbox. The box has an annular projection b, having a cross section of a trapezoid, as shown in the section of the box. This annular protrusion 6 is flanked by non-rotating eccentric rollers 8.

The first clamp of eccentrics 8 is achieved by turning the latter together with the levers 4 on. fingers 9. The fingers 9 transmit the movement to the eccentrics through the squares, creating a rigid connection between the eccentrics 8 and the levers 4.

When the roller 3 is taken out of its position 3b under the action of the spring /, the levers 4, I act in parallel, the transition

from position 4b to 4a and the eccentrics 8 are turned until the latter are clamped by their sides of the annular protrusion 6.

The conic eccentric conic flaps and the ring that are created contiguous the eccentrics by friction until the magnitude of the adhesion force from the friction exceeds the efforts to lift all the plow bodies applied through the lever system to the disk 2 and, consequently, to the eccentric 8.

In this case, the movement is transmitted through the inclusion in rotational movement of this disk 2 of the automaton, which is created by the eccentrics 8. The eccentrics themselves clamp the ring only with their sides, without contacting it with its cylindrical surface.

When the roller 3 is pressed on the levers 4 which turn on the levers 4, the ring 6 is released, as a result of which the automatic gearbox and its disc 2 are disengaged and the plow is either in the transport position or in the working position during plowing.

By varying the eccentricity value, the corresponding clamping force can be adjusted. In this case, the rollers should be steel and well processed.

The subject matter of the invention.

An automatic lifting device for the plow frames using a friction clutch, the halves of which are intermittently coupled, characterized in that rollers 8 are used for this clutch, eccentrically mounted on the fingers of the swivel levers of one part of the clutch and provided with a grooved rim covering the annular projection 6 couplings.

FIGURE 1

. 3

Figg

.3