DE284610C - - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The vibrating chutes used to transport bulk goods throw the goods through Rapidly successive impacts diagonally upwards in the conveying direction. Here is the disadvantage that to achieve a suitable conveying speed, the channels very need to be moved back and forth quickly. The goods are not sufficiently spared in that they get mixed up by the impacts which is thrown and thus experiences an undesirable crushing. Very sticky masses cannot be promoted with such channels. Another disadvantage of these gutters is the unfavorable effect of the short oscillations on the building, which is why they are in slight Buildings are not at all feasible. In another known gutter it does fall . in contrast, the throwing motion away as they. solely by the nature of the movement of the Gutter achieved the forward movement of the goods; but this has the disadvantage that all the frictional work has to be expended, since gravity always comes into its own comes. In addition, this channel must inevitably be withdrawn quickly, whereby the gear parts and the basic masonry are heavily used.

The present invention forms the gutter as an independent one in order to prevent these shortcomings vibrating system that takes into account all local requirements has an oscillation time that has been precisely calculated in advance or determined by experiments. Kicking If there were no friction losses, the channel would be permanent with this selected oscillation time swing. It is only necessary now

to replace the low friction losses and the pumping work with a suitable energy supply, to maintain the vibrations. That these drives coincide with the natural oscillation time the gutter is the characteristic of the present invention. It is achieved in that the drive mechanism only experiences very little stress and can therefore be easily maintained. Furthermore, the oscillation time can by itself known measures are preselected so that they are about the same as that of the building is chosen and thereby the risk of collapse is excluded.

In the present invention, the forced oscillation always coincides with the natural oscillation match. Nevertheless, no resonance phenomena can occur because of the drive yes only gives work when the width of the vibratory movement of the gutter through Efforts to decrease frictional losses and work carried out, and because the drive does not apply if the width of the vibratory movement of the channel has reached a certain level. This consists e.g. B. also a difference compared to the torpedo channel and the marcus channel. In the torpedo channel, the oscillating system is given a new sinusoidal oscillation forced (by the movement of the car) .. If you wanted the forced oscillation choose equal to the natural oscillation of the channel when the car is stationary, then resonance would occur, i.e. H. the gutter would bump against the guide of the car, since the vibration stops are then infinitely large will strive. This increase in stroke

by resonance is used directly in the Marcus Gutter. However, here on both sides Air cushions are arranged so the deflections cannot become infinite. but In this channel, too, there is a constant transfer of energy from the drive to the channel. The practical advantage of the invention over the torpedo channel is that the whole car with its roles is omitted and

ίο greater independence from the burden is achieved. Compared to the Marcusrinne, the advantage is that when you turn back the pressure forces generated by the channel do not get into the gearbox.

One of the possible embodiments of the invention is shown in the figure in a side view.

The channel 3 is supported by pendulums or springs 2

suspended from the support 1; the conveyed goods is fed through the chute 4. Towards the end of the stroke is in the example case as a reversing device a spring 5 attached, the opposite of the gutter in the desired time Speed granted. The shaft 12 now runs at the predicted number of revolutions, and the push rod 7 pulls through z. B. Tension spring 9 when falling on rod 8. and thus at the gutter and thus gives off the conveying work that is then just required. The crank so has a phase shift compared to the simultaneously oscillating channel, since it yes with the rather sudden change in movement of the channel on the 'reversing device already have the required backward movement, must just to deliver the friction work. This phase shift occurs automatically depending on the load on the channel one, and therefore the gutter works unchanged at all loads, although it does during of the entire slope can swing freely, since the decline is always the same speed how the hanging has; a graph of the speed would therefore always be the same Show course (mirror image) of going back and forth. . An acceleration of the backward movement of the channel does not take place instead of; this is a particular advantage of the invention, because the drive does not have to work to move the gutter itself. Greater forces or even shocks can never get into the gearbox.

The reversing spring 5 is arranged in the example so that it is in a certain Direction inclined upwardly moving gutter counteracts. The gutter would now almost instantly with a hard push are reversed, so the good, which is lying quietly in the gutter when you go down, would be shows no proper movement to this, be thrown further in a parabolic shape. This trajectory parabola is precisely defined by the speed and the direction angle. One chooses now the reversing device by measures known per se so that the channel is straight reverses its motion according to the trajectory parabola. So it follows the good up to Vertex of the parabola, so that the point of reversal and parabola vertex coincide. This can can easily be determined by recording. One achieves that the good is during free to move on the trajectory parabola, d. H. moves without any friction, even though it is does not stand out from the gutter, as the gutter follows its movement exactly. Thanks to the smooth gliding during the. Reversal of Movement of the gutter is saved in conveying work and wear and tear on the gutter. But there one If lifting does not take place, the material does not hit the channel and is not crushed. By adhering to the above conditions, the only thing that is smooth is bumpless Sliding achieved.

Due to the above way of working, one is not dependent on chance, it is precise the path indicated which creates the most favorable conditions. .

Claims (1)

Patent claim: Pendulum conveyor trough, characterized in that the drive device of the Channel has a movement that is simultaneous to its natural oscillation. 1 sheet of drawings.