DE2265238A1 - VIBRARY DRIVE WITH ECCENTRIC FLYWHEEL FOR A VIBRATING OVEN - Google Patents

Description

Graduate engineer

ΜΤΕΝΤΛΝ ^ ΙΙΪΕ "BROSE ^DKa BROSE D-8023 Munich-Pullach, Wiener Str. 2. Tel, (089) 7 93 30 71; Telex 5212147 bros d; Cables: ..Patentibus» Munich

DEISTER CONCENTRATOR COMPANY, INC., Incorporated under the laws of the State of Delaware, Fort Wayne, Indiana, USA

Vibratory drive with eccentric flywheel for a vibrating hearth

(Exclusion from patent application P 22 51 814.5-24 of October 21, 1972)

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rourref .: Date: July 14, 1976

The invention relates to a suspended oscillating drive with a multiple eccentric flywheel for a vibrating hearth, with the mixture of heavy and light individual particles into heavier particle groups and lighter particle groups can be separated.

In known vibratory drives, horizontal shafts provided with weights are used, the weights are firmly attached to the shafts and are driven by a stationary power supply source, such as by an electric motor and a flexible drive mechanism such as conventional ones Rubber V-belt.

The present invention provides an improved oscillating drive with a mechanism in the form of a multiple eccentric flywheel, which can be held hanging and with the help of a directly coupled drive machine can be driven. The eccentric drive can therefore preferably be used with a vibrating hearth, as described in German patent application P 22 51 814.5-24.

Specifically, the present invention creates a vibratory drive with an eccentric flywheel, which inherently has a back

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iand reciprocating motion is generated which is faster in one direction than in the opposite direction. Of the Vibratory drive is characterized by a housing in which four shafts are rotatably arranged, spaced apart and parallel to each other, by means of a device mounted on the housing for rotating the shafts in a temporal relationship to each other, by four weights eccentrically attached to each of the shafts, two of which are equal and larger than the remaining ones two weights, which are also equal to one another, the eccentric weights being oriented on the shafts in such a way that When the shafts rotate, the oscillating drive is given the required reciprocating movement, further by fastening means on the housing, through which the oscillating drive can be held in use in such a way that the axes of said shafts are arranged substantially vertically.

In the following the invention is based on an exemplary embodiment explained in more detail with reference to the drawings. It shows:

1 shows a plan view of the vibratory drive and a vibrating hearth;

FIG. 2 shows a side view of the vibrating cooker according to FIG. 1, with some components of the vibrating drive in FIG Section are shown; and

Fig. 3a - 3d positions of the weights of the oscillating drive at different times during an oscillation cycle.

The vibrating hearth consists of a table 1, which is fixed at 2 an oscillating drive 3 is coupled. The vibratory drive 3 differs from known such units in details, although it is constructed according to the known principle and contains several weights that are rotated in order to

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to give the vibratory drive a back and forth movement. The vibratory drive 3 consists of a housing 4 with bearings 5 »in which two shafts 6 and two shafts 7 are mounted, the shafts 6 each holding a pair of arms 8 or are attached to these arms and with between them Arms a weight 9 is provided. Similarly, arms 10 are supported on the shafts 7, with a weight 11 on each Shaft 7 is attached to the arms 10 or between them. Gears 12 and 13 on shafts 6 and 7 connect the shafts 6 and 7, the gears 12 being twice as large as the gears 13. On one of the shafts 7 is a belt pulley 14, and a drive belt 15 connects the pulley 14 to a pulley 16 on an engine 17, which is attached to the housing 4. The gears 12 and 13 are received in an oil sump 18 and the weight of the oil / the Oil sump and the gears (which are all arranged on one side of the oscillating drive 3) are due to the weight of the motor 17 and the pulleys 16 and 14 balanced, so that the oscillating drive if desired on a single Cable can be hung at a point indicated by 19. It should be noted that the waves are essentially run perpendicular to the plane of the vibrating table, which is in contrast to known constructions, in which the eccentrically loaded shafts are essentially parallel to the plane of the vibrating table are arranged. This change in orientation creates the possibility of V / R of the vibratory drive directly to be able to change in order to achieve a suitability for "short" or "long" vibratory drives, as explained below shall be. The way in which the reciprocating motion of the vibratory drive is generated, but this one maintains lateral stability is illustrated chemically in FIG. Fig. 3a shows the weights 9 and 11 in one additive mode of action to move in the direction of the arrow to evoke. Fig. 3b shows the weights in a balanced first middle position, it should be noted that that the weights are symmetrical, thereby avoiding any tendency of the oscillating drive to move sideways

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will. Fig. 3c illustrates the weights which essentially act to cause movement in the direction of the arrow, which is smaller than the movement in the direction of the arrow of Fig. 3a. Fig.3d illustrates the weights in a calibrated second center position which, like the first center position, does not produce a lateral movement of the Vibratory drive leads. Subsequently, after the position according to FIG. 3d, the weights again assume the position shown in FIG. 3a is shown, the effect of which is again additive.

At the end of the vibrating or shaking table 1, which is from the vibratory drive is located remotely, there is provided a suspension assembly, indicated generally at 20, which consists of a There is an eyelet part 21 which receives a cable and which has a threaded shaft 22 on which a lock nut 23 is arranged. The shaft 22 is screwed into a base part 24 which is fastened to the vibrating table 1.

From the preceding description it can be seen that the vibrating hearth (vibrating table plus vibrating drive) is in two places is suspended, namely at 19 and 20, that further the oscillating drive 3 due to its symmetrical structure or arrangement can swing without lateral movement, and that the shaking or swing table is inclined laterally relative to the suspension cables (which can be viewed as vertical and reference lines) by simply connecting the coupling 2 and the Suspension assembly 20 actuated.

The oscillating drive 3 can be used directly for different requirements be adjusted with regard to the reciprocating movement. The arms 8 and 10 are on the shafts 6 and 7 clamped so that they can be moved together or can be moved apart to thereby weights with different Length to take into account. In addition, the weights are attached to the arms 8 and 10 by screws 25, so that the weight can be replaced immediately.

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It should be pointed out (see the weight 9 according to FIG. 2) that the weight 9 has openings to eccentric screws to be attached to the longitudinal axis of the weights. According to FIG. 2, the longitudinal axis of the weights 9 is indicated by a dashed line and it runs outside the fastening screws 25. By simply turning the weight 9 and fastening it with the screws 25, the longitudinal axis can be arranged between the screws 25 and the shaft 6. Through this facility, the effective radius with which the weight 9 works can be increased. The present invention was thus an in the technology meets long-standing need, directly both the weight (W) and the radius (R) of the back and forth to change the forward movement-causing weights.

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Claims (3)

PATENT CLAIMS _s iy vibratory drive with eccentric flywheel for a vibrating hearth, which inherently generates a reciprocating movement that is faster in one direction than in the opposite direction, characterized by a housing (4) in which four shafts (6, 7) are rotatable and are arranged in parallel at a distance from one another, by drive means (14-17) attached to the housing (4) in order to set the shafts (6, 7) in rotation in relation to one another in time, by four weights (9t 11) attached to each of the Shafts (6, 7) are attached eccentrically, whereby two (9) of the weights are the same size and larger than the remaining two weights (11), which are also equal to each other, the eccentric weights (9, 11) on the shafts ( 6, 7) are oriented so that the oscillating drive is given the required reciprocating movement when the shafts rotate, and by fastening means (19) on the housing by which the oscillating drive can be held in operation, with the axes of the shafts (6, 7) are essentially vertical. 2. Vibratory drive according to claim 1, characterized in that each weight (9, 11) is releasably attached to arms (8, 10) which are arranged on a shaft (6, 7), that the attachment of each weight (9, 11 ) is provided in such a way that the radial distance from the center of gravity of each weight (9 _f 11) to the shaft (6, 7) can be changed. 3. Vibratory drive according to claim 2, characterized in that the arms (8, 10) in the axial direction on the shafts (6, 7) are adjustable in order to be able to replace the weights (9, 11) with weights of different dimensions. 609853/0019