The electric motor 10 may be mounted directly to a vibratory mechanism such as a vibratory screen separator, a vibratory finishing mill or the like.
a first eccentric weight assembly fixed to the shaft; a second eccentric weight assembly displaced from said first eccentric weight assembly along the shaft, said second eccentric weight assembly including a support fixed to the shaft to extend laterally of the shaft, said support having a ring of slots displaced laterally of the shaft, a first eccentric weight rotatably mounted about the shaft and having a first pin extending to said ring of slots, a second eccentric weight rotatably mounted about the shaft and having a second pin extending to said ring of slots. Vibration is accomplished by eccentric weights on the upper and lower ends of the motion-generator shaft. Rotation of the top weight creates vibration in the horizontal plane, which causes material to move across the screen cloth to the periphery. Because vertical/horizontal amplitudes and the rate of vibration are completely adjustable, your finishing requirements can be handled quickly and efficiently. Sound levels have been reduced by the use of special materials and new fabrication techniques. The ring 60 of slots 64 is defined by upstanding stops 62 which define the slots 64 therebetween. Rotation of the top weight creates vibration in the horizontal plane, which causes material to move across the screen cloth to the periphery. Save my name, email, and website in this browser for the next time I comment. removing weight plates ampli- fies or decreases horizontal or vertical amplitudes, thus affecting screening throughput rate and efficiency ratio. The force produced is dependent on three parameters: One of our old college vibration textbooks presents the formula Fo = moeω2 , where mo is the mass of the rotating unbalanced weight and e is the distance from the center of gravity of the rotating unbalanced weight to the center of rotation and ω is the circular frequency of the vibrator (Phew!). These stops 62 may be placed at convenient intervals such that the ring 60 is divided into regular angular spacing. The present invention is directed to an adjustable counterweight assembly for association with a vertical, rotatably mounted shaft. This lower eccentric weight assembly 40 includes a support 42. Two eccentric weight assemblies are fixed to the shaft with one of the assemblies including a support having a ring of slots and eccentric weights adjustably mounted about the shaft with pins extending to the ring of slots. We offer screens that meet specifications from these and other industry organizations. This completes our step-by-step process on how to adjust the weights on a rotary electric vibrator. Simple, ergonomic design and easy-to-read settings make this weight system user friendly.
Make notes of the starting point before changing weight settings. How Hoppers Can Improve Performance of Feeders & Screeners, Reduce the Noise Level on Your Vibratory Equipment, Automate the Hammer Swing by Following These 5 Steps, What You Need to Know About Clogged Industrial Pipe Issues and Vibration, How to Adjust the Eccentric Weight on Rotary Electric Vibrators, The distance of the center of gravity of that mass from the center of rotation. Any type of rotating vibrator, that includes rotary electric (RE), ball or turbine vibrators generate their “vibratory force” by rotating a mass around the center of the unit or shaft. Record the new weight settings for future reference and return the vibrator to service. Other Industries, 2455 Palm Street, Sutter, California 95982, Copyright © Sweco Products. Q. In other words, consistency is key! Likewise, on a piece of equipment, both vibrators need to be set in the same manner; all weights on both vibrators must be in the same orientation relative to each other. Start with twice as many weights on the bottom, and adjust from there. Vibro sieve (1x), Make Sweco Europe S.A., Type S-30 S, No. The chamber, which incorporates a removable center column, allows you to run larger than normal parts in the mill. When the screen opening sizes are much larger than the media, forward feed can be increased. It’s critical that what is done to one end of the vibrator must be done to the other end. These Sound levels have been reduced by the use of special materials and new fabrication techniques. Adjustments in finishing action are easily made by varying lead angle and motor weight settings. Each mounting hole fits over the collar 48 and is slidable thereon both axially of the shaft 12 and angularly about the shaft 12. The upper weight 54 is larger than the lower weight 56 such that the upper weight 54 rides on the steps 65 while the smaller, lower weight rides on the support 42 inwardly of the steps 65.
The bowl vibratory machine has weights attached to the top and bottom of a vertical shaft mounted to the center column of the bowl that can be added and subtracted from the top and bottom weight carriage. Adjustments in finishing action are easily made by varying lead angle and motor weight settings. A self-unload bowl vibratory system is primarly set up for unload efficiency. FIG. 1 illustrates an adjustable counterweight assembly illustrated in an exploded assembly view. Caterpillar has been setting engine industry standards for over 85 years Engine is covered by a nationwide Caterpillar 2 year or 3000 hour warranty whichever occurs first The eccentric weight assembly 14 is fixed to the shaft 12 through the key way 22 by means of a key 36 and a key way 38 located in the shaft 12. The support 42 extends laterally of the shaft 12, is circular and has lightening holes 44. Construction Repeat the weight adjustment procedure on the opposite end of the vibrator. generation, ROTARY VIBRATOR WITH ADJUSTABLE WEIGHT MEANS, <- Previous Patent (Electronic insect re...). Once positioned, the Weights are lowered and the motor may be energized.
Force Wheels are available for 24”-72” separators. SWECO, the world leader in particle separation and size reduction solutions, offers round and rectangular separators for dry material separation and sizing as well as liquid solid separation. Click the image below for a simplified infographic. Replace the weight covers on the vibrator. 7:17. The geometry of the weights allows each to have equal eccentricity in spite of the variation in outer diameter. 74/87, 74/533, 366/128, Click for automatic bibliography One of the most essential features on these mills is the long retention time of parts for single pass applications. Consider these five variables to determine what fits your application. Knobs 70 are threaded onto the end of each of the pins 66 and 68 for convenient purchase. These weights are of equal eccentricity and are fan shaped plates.
These weights become the “unbalanced” mass that is used to generate vibratory force as the vibrator rotates. When doing this, however, note that the shaft rotation should be opposite of the media feed direction. A wide variety of vibratory mechanisms have been developed for screening, milling, mixing and the like. Vibration is accomplished by eccentric weights on the upper and lower ends of the motion-generator shaft. Such devices typically are advantageously operated using a variety of vibration amplitudes and lead angles. Once the cover is removed the weights can be adjusted. When adjusting, change only one variable at a time. However, we’ve found that converting it into this slightly more user-friendly configuration does the trick, F = 2.85E-5 x unbalanced x rpm2. In the preferred embodiment, slots 64 are defined at 5" intervals.
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