SU1204951A1 - Belt-conveyer weigher - Google Patents

Description

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The invention relates to weighing technology, in particular to the load-bearing assemblies of belt scales.

The purpose of the invention is to improve accuracy by reducing the friction of the ball sliding.

FIG. 1 shows a diagram of the device; in fig. 2 shows a section A-A in FIG.

Conveyor scales consist of a cargo receiving platform 1 with rollers 2, on which a transporting belt 3 with material is supported, a load cell sensor A mounted on a supporting platform 5, a limiter 6 of horizontal displacement. and consisting of fixed posts 7, between which and guides 1 8 and 8, rigidly attached to platform 1, balls 9 placed in cylindrical springs 10 are installed. On fixed stands 7 adjustable supports 11 are installed, which abut against bolts 12 screwed into racks 7. Plates 13 serve to fasten springs 10 with balls 9 on them. To measure the weight, there is an apparatus 14 connected to sensor 4.

Conveyor scales work as follows.

When the tape 3 with the material moves, the force is transmitted through the load-receiving platform 1 to the force-measuring sensor 4, the signal from which is fed to the measuring and recording equipment 14.

204951

Under the influence of dynamic forces, the load-receiving platform 1 tends to shift in a horizontal plane. This is prevented by

5, stops 6, leaving the load platform 1 only the possibility of plane-parallel movement in the direction of gravity of the mass of the material being moved. 10 This is achieved by the fact that when the lifting platform 1 is displaced under the action of horizontal components, the SUSH1x guides 8 contact with the balls 9 freely placed

15 in the springs 10, which in turn are in contact with the adjustable supports 11, which rest against the adjustable bolts 12, screwed into the fixed supports 8,

20 thereby displacing the load-receiving platform 1 in the horizontal plane.

The free placement of the balls 9 in the springs 10 ensures their rolling between the guides 8 and the adjustable supports 11 in the process of moving the receiving platform 1. In this case, there is no sliding friction, which reduces the weighting error.

The height of the balls 9 is adjusted by rotating the springs 10 along the plates 13, which makes it possible to set them at the same height when adjusting the weights.

2

Compiled by V. Shirshov Editor O. Kolesnikova Tehred 3.Paly

Corre Poppy

8516/41 Circulation 702

VNIZhSH State Committee of the USSR

for inventions and discoveries 113033, Moscow, Zh-35, Raushsk nab., 4/5

Branch PSh1 Patent, Uzhgorod, st. Project, 4

Proofreader M. Maksimishinets

Claims (1)

CONVEYOR SCALES containing a lifting platform with rails in contact with a load cell, and horizontal movement limiters in the form of stationary racks and balls located between these racks and rails of the load receiving platform, characterized in that, in order to increase accuracy by reducing the sliding friction of the balls, they introduced cylindrical springs mounted on fixed racks with the ability to rotate around the axis, the balls are suspended on coil springs c. d the possibility of free rotation. SU „„ 1204951