Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
  • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
  • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
  • B06B1/12—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving reciprocating masses
  • B06B1/14—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving reciprocating masses the masses being elastically coupled
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
  • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
  • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
  • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
  • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
  • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
  • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
  • B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
  • B65G27/00—Jigging conveyors
  • B65G27/10—Applications of devices for generating or transmitting jigging movements
  • B65G27/32—Applications of devices for generating or transmitting jigging movements with means for controlling direction, frequency or amplitude of vibration or shaking movement
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
  • G01M7/00—Vibration-testing of structures; Shock-testing of structures
  • G01M7/02—Vibration-testing by means of a shake table
  • G01M7/06—Multidirectional test stands

Definitions

• a vibrating or vibrating support element that is supported in a stationary and parallel manner by means of leaf springs
• the invention relates to a vibration or vibratory support member according to the preamble of claim 1.
• Vibratory troughs or vibrating tables with leaf spring parallel guidance, which are guided in parallel by means of leaf springs, are already known.
• the swinging supporting elements are supported by leaf springs.
• vibration support members designed as vibration or vibrating tables are used to calibrate or test instruments under vibration or vibration conditions.
• the known vibrating or vibrating tables are designed such that they either perform defined vibratory movements in the table plane or perpendicular to it. When testing and calibrating instruments, it is therefore necessary to move them from a table that only carries out defined horizontal vibrations to another table that only carries out defined vertical vibrations.
• the invention is based on the object of creating a vibration or vibrating support element which is guided in parallel and which can carry out variable superimposed vertical and horizontal movements.
• vibration generator periodic movements of the vibration support member can be generated depending on or independently of one another with frequencies, amplitudes or phase positions which can be set in advance or which can be regulated in operation, without the need to use additional mechanical coupling elements. If a vibration generator is stopped or if its amplitude is set to 0, then either a pure vibration movement can be carried out in the plane of the vibration carrier or a pure vibration movement perpendicular to this plane. By appropriate regulation of the operation of both vibration generators, these vibrations can be superimposed in any way.
• a particularly simple and effective embodiment is formed in that the leaf springs are knee joint springs. It can be advantageous that the individual leaf springs of a knee joint spring are of equal length.
• the drive linkage is advantageously brought into drive connection with the knee joint springs in the knee joint locations.
• the drive linkage can be articulated in the middle of the lever arm.
• the articulation points of the leaf springs on the fixed support and / or on the vibration support member should be designed in such a way that these leaf springs can easily assume an inclination position corresponding to the knee joint configuration.
• Correspondingly inclined stop surfaces are provided for the spring inclination, against which a spring end is clamped, for example by screwing.
• the vibrators can be pneumatically or hydraulically operated systems. However, it is also possible to use electrical vibration generators, for example voice coil units.
• each vibration generator is a crank mechanism with an adjustable crank arm.
• very low frequency numbers can be used, which is often desirable.
• the crank mechanism is a double eccentric drive. In this embodiment, in particular a simple change in amplitude down to 0 can be carried out.
• 1 is a schematic diagram of the structure of the vibration or vibratory support member
• Fig. A sectional view of a spring clamp
• Fig. 3 is a schematic view of an embodiment of a vibration generator.
• a vibration or vibratory support member 1 is shown.
• This vibration or vibrating support member 1 can be, for example, a vibrating table.
• This vibration or vibratory support member 1 is supported by leaf springs 2, 17 at 3 and is simultaneously guided in parallel.
• Each vibration generator 4, 5 is connected to one end 7, 8 of a rocker arm 6.
• the upper end 7 of the rocker arm ⁇ is still connected to the vibration support member 1 via a linkage 9.
• a drive linkage 10 is articulated at 15.
• This drive linkage 10 extends towards the knee joint springs and is connected at the knee joint points 11 to the leaf springs 2, 17 in such a way that a drive movement can be transmitted. If, in the embodiment shown, the vibration generator 5 is out of operation or if its amplitude has decreased to the value 0, the end 8 of the lever rocker 6 forms a fixed point. When the vibration generator 4 is actuated, the lever arm 6 is pivoted about the fixed point 8 by the latter.
• This pivoting movement is transmitted via the linkage 9 to the articulation point 12 on the vibration support member and simultaneously from the center 15 of the lever rocker 6 to the drive linkage 10 and from there via the knee joint points 11 to the leaf springs 2 and 17.
• the combination of the drives via the linkage 9 and the drive linkage 10 causes the vibration support member 1 to perform an oscillating movement in its plane, that is to say a horizontal oscillation movement in the illustrated embodiment.
• the vibration generator 4 is not operated or if its vibration amplitude is reduced to 0, the end 7 of the lever rocker 6 forms a fixed point. If the vibration generator 5 is now taken into operation, the swing arm 6 swings around the fixed point 7 and actuates the drive linkage 10 of the leaf springs 2, 17 in such a way that the vibration support member 1 carries out a swinging movement perpendicular to its plane of extension , d. H. performs an oscillating movement in the vertical direction in the illustrated embodiment.
• both vibration generators 4 and 5 With simultaneous actuation of both vibration generators 4 and 5, two can be directed perpendicular to each other Vibration movements are generated in the vibration support member 1, wherein a variably adjustable and previously determinable superposition of predetermined vibrations is possible.
• Frequencies, amplitudes and phase positions can be set in the simplest way according to the desired operating conditions.
• Fig. 2 shows a spring clamp for the end of a leaf spring.
• the double eccentric drive 16 has a second circular disc 19 mounted in a circular disc 18.
• the second circular disk 19 carries a crank pin 20.
• a linkage 21 is articulated to this, the end 7 of which is connected to the lever rocker 6.
• the amplitude of such a double eccentric drive 16 is set by rotating the circular disc 19 within the circular disc 18.
• the crank pin 20 is at the center of rotation of the circular disk 18, the amplitude of this double eccentric drive 16 becomes 0.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Apparatuses For Generation Of Mechanical Vibrations (AREA)
• Percussion Or Vibration Massage (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6284605

Family Applications (1)

Country Status (3)

Cited By (1)

Families Citing this family (6)

Citations (9)

Family Cites Families (2)

• 1985
  • 1985-10-24 DE DE19853538229 patent/DE3538229A1/de active Granted
• 1986
  • 1986-10-23 WO PCT/DE1986/000427 patent/WO1987002601A1/de unknown
  • 1986-10-23 EP EP19860906272 patent/EP0243420A1/de active Pending

Patent Citations (9)

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