SU29984A1 - Automatic Scales - Google Patents

Description

In the proposed automatic weights above their yoke, a ring is placed with radially positioned levers, operated manually, using flexible shafts and bevel gears, and hanging weights on one shoulder, corresponding to one or another weight. When one of the levers is actuated, the latter loads the rocker with corresponding weights, and the projection on the other arm of the lever simultaneously displaces the shaped slide, releasing the rocker from the arresting device. The rocker with the contacts on it under the weight of the weights closes the electric current circuit, automatically setting in motion the electric motor that controls the bunker damper.

In FIG. 1 is a side view of an automatic scale; FIG. 2 - view from above; FIG. 3 is a section of the bottom of the hopper.

The ring 4 mounted above the yoke / automatic weights is provided with radially arranged levers 5, carrying the suspension weights 3 on one shoulder, and on the other protrusions 8 resting on the shaped slide 9. The levers 5 are controlled manually by means of the J6 handwheels corresponding to each one . 3)

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connected to the arms using bevel gears and flexible shafts.

When one of the levers 5 is activated, the latter rotates and loads the rocker arm with the corresponding weights 3, lowering them into the slot 2 on it. At the same time, the other arm of the lever 5 with the protrusion S rests on the 4-shaped slide P under the ring and moves them, as a result of which the yoke / is released from the spring arrest 6, 7 (Fig. 1).

The freed rocker 7, under the weight of the weights imposed on it, lowers and contacts / closes the electric current circuit, which is automatically driven by the electric motor that controls the bunker damper. When the valve is opened, the drain chute / 5 (Fig. 3) is simultaneously lowered, and the material to be weighed begins to pour from the hopper into the bucket M, suspended from the beam. When the bucket is filled, the rocker arm shoulder loaded with weights rises and closes the second contact J2 (Fig. 1), causing the current to switch, and the motor, rotating in the opposite direction, closes the hopper flap. A wedge / 5 serves to transmit the movement of the levers 5, which are arranged at a right angle to the rocker, and is connected to the levers

i Prev, inventions.

Claims (2)

1. Automatic scales, characterized in that for simultaneous mechanical loading of the rocker arms with weights, releasing it from the arresting device and controlling the bunker damper, a device consisting of radially located on the ring 4 levers 5 (Fig. 1), controlled manually using flexible shafts / (Fig. 2) and bevel gears, and equipped with hanging weights 3 on one shoulder (fig; 1), and on the other, protrusions supported on the shaped slide of R. are seated with spring arresting device 6, 7 (fit. 1), and an electric motor automatically controlled by the electric circuit serves to control the hopper gateway contacts on the yoke. 2. In the scales of claim 1, use wedges / 5 (Fig. 2) associated with levers D and intended to transmit movement of the levers located at a right angle to the rocker arm, the sled 9.