SU60186A1 - Platform scales - Google Patents

Description

An izbretenka relates to a platform scale device using a weight recording device, consisting of a bucket and a lead drum that carries a paper tape to record the weight and is moved through a xipain mechanism, with a load-bearing weight.

In the proposed scales, the driving of the ratchet mechanism of the drum is carried out by the action of the balance beam of the scales on one lever arm, on the other shoulder of which the measles of the ratchet mechanism are secured.

In a schematic drawing of FIG. 1 depicts a general view of the yoke of a platform scale with a recording device; FIG. 2 is a diagram of a recording device.

The VBS recording device consists of an angled panel 22 on which the drums are fixed: the lead 8 and the slave 8, carrying the recording tape 9, go through the guide of the second tunnel 10. The lead drum 8 is driven into rotation by a load 18 with the help of Two block 14 and 20 of the cord 19 or otherwise. Axis

the leading drum is provided with a ratchet 15, the measles 16 of which is fixed on one shoulder of the broken lever 13, on the other shoulder 12 of which the rocker 5 weights can act. Lever 13 mounted on the rack 21.

The anchor 16 of the ratchet 15 is made two-sided. Coupling and alternately with the upper or lower tooth of the ratchet 15, 16 allows the ratchet 15, and with it the drum 8 to rotate little by little, winding the tape 9. The movement of the core 16 goes down under the action of the load 17, and the upward movement occurs under the weight of the descending arm 5, pressing lever 13 onto the platform 12.

The weight is recorded on tape 9 by a scribe attached: to the beam 5. The tape has an intermittent movement, moving after each weighing.

Weighing is performed as follows. A weight is placed on the platform of the weigher, the force of which is transmitted through the th 7 to the npaiBOMy of the rocker arm 5. Under the effect of the transmitted force, the right shoulder of the rocker arm 5 will swing down, and the left shoulder will rise. When the left shoulder of the rocker arms 5 is raised, the roller 4 installed at the end of the roller rolls along the curved shoulder of the lever 2, which begins to rotate with the BQKipyr of the hinge 3. Rotation of the lever 2 will occur until the system is balanced by UNDER from one side of the force transmitted This is 7, and, on the other hand, by the back pressure force of the curved arm of lever 2 on roller 4. In view of that, it is only; the lever arm 2 is made 1a along smooth curves, it is possible to find a constant position of load 1, at which any load on the BecoiB platform will be automatically balanced. In this case, roller 4 will disappear along a curve some way, the larger, the heavier the weighed weight. The size of the load can be judged by the deviation of the end of the lever 2.

At the same time, the scribe will draw on the tape 9 a certain size of the ordinate.

In order to judge the size of the weighed cargo by the ordinate size, the belt is calibrated, for which the drum 8 is loaded; the tape is clean, the end of the scribe is podzoditsa and the weight is put on the scale platform. As mentioned above, under the action of the load, the left shoulder of the rocker arm 5 will begin to rise and the scribe attached to it will draw an ordinate on the ribbon.

After that, the load is hung out using the movable weight 6. Thus, it is determined that the vertex of the ordinate corresponds to a certain value of the load. This is done several times, then horizontals are drawn through the vertices of the ordinates, to which the weights of those 01rdins, of which they are drawn, are applied.

The subject matter of the invention.

Platform scales with the use of an automatic recording weight of the device, consisting of the slave and the leading drums, rotated by the action of the load and carrying paper tape, using a ratchet mechanism to start and stop them, The fact that switching on and off the movement of the leading drum is realized by the action of the rocker arm 5 weight on the shoulder 12 of the lever 13, on the free arm of which the measles 16 are fixed to the ratchet mechanism.

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