SU81109A1 - Self-propelled vibrator - Google Patents

Description

Self-propelled directional vibrators are known for compacting ground masses.

The proposed vibrator differs from the known ones in that the unbalances in it are placed in two separate boxes, which are hingedly mounted on the horizontal axis and independently from each other can be installed at different angles to the horizon. This design makes the vibrator self-propelled.

FIG. 1 shows a vibrator (side view); in fig. 2 is a diagram of both boxes of unbalance machines; in fig. 3 - diagram of the forces in the boxes of unbalance when the machine is running.

The self-propelled vibrator consists of a massive cast-iron plate / with axis 2 fixed on it, on which two boxes of unbalances 3 are mounted.

In each box of unbalance 3, there are two unbalance 4 mounted on parallel shafts connected by helical gears 5, which ensures that a pair of unbalances in opposite directions are turned. Pulley 6 is driven by engine 7 through a textrop drive with a tensioner. At the end of one of the unbalance shafts of the first gear box, gear 8 is mounted, coupled together, and with wide gear 9. The center of rotation of gears 1 and 9 runs along the hinge axis 2 of the debalance boxes 3. Gear 9 also has a second gear 8 of the second gearbox unbalances, thus, the synchronous rotation of the four unbalances is carried out independently of the mutual position of the two boxes. The unbalance boxes change the position by rotating the spurwheels W, which cause the screws 1 to rotate, which move the nut 12 along the screws and rotate along the 2 axis of the unbalances box 3 at some angle.

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cb-Equal to $ |; w (the centrifugal forces developed by unbalances. Each box is at an angle at which the box with the JO steering wheel, screw / L nut- 2 and ti / 5 is inclined. Design - allows you to create for each of the two boxes, different angles of inclination to the horizon, and therefore different angles of inclination of the resultant centrifugal forces of the boxes. If you transfer the point of application of the resultant force / to the center of the hinged attachment of the unbalance box to the plate / and spread this force to the horizontal and vertical components e, then the value of the horizontal force A depends on the angle of the unbalance of the box, which can be varied from zero to maximum. The force A is driving.

By using shturvalov different angles of inclination for both boxes, the basis for different amounts of driving forces and different linear speeds of movement of the points of application of these forces to the sealing plate, which rotates it along a radius depending on the difference in the values of forces or speeds. The slope of both boxes at equal angles in opposite directions gives a radius of rotation equal to zero, and the mask turns in one place. The slope of both boxes in one direction gives a turning radius equal to infinity, and the movement of the maschine will be linear.

Subject invention

Claims (2)

1.Surfaced vibrator directional, action for compaction of the earth masses, characterized in that to achieve the self-propelled vibrator, the debalances are placed in two separate boxes, hinged on a horizontal axis, which can be independently from each other set at equal angles to the horizon that ensures the movement of the vibrator on the compacted surface. 2. Vibrator according to claim 1, characterized in that two cranks connected in one post are used for shaking, and rotating them with screw screws and rods creates the necessary inclinations of the boxes with unbalances.