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Dynamic Rotor Balancing of an Old Crusher Using Balanset-1A

 

Objective:
The task at hand was to dynamically balance the rotor of a considerably aged crusher. For this critical operation, the Balanset-1A device was employed.

Process:
Upon initial inspection, the crusher was found to be in dire shape, rendering it unsuitable for use. The Balanset-1A confirmed the rotor's significant imbalance, which was further exacerbated by underlying issues:

Both bearings were identified as worn out and in urgent need of replacement.
The frame housing the rotor showed signs of deterioration and required repair.
Due to excessive wear, the hammers couldn't be securely affixed to the rotor.
To achieve the desired balance, weights exceeding 50 kg were necessary.
Given these complications, the balancing process was intricate. However, with the precision and capabilities of the Balanset-1A, steps were methodically undertaken to address the rotor's imbalance.

Conclusion:
Successful balancing brings forth numerous benefits: a reduction in noise levels, prolonged bearing lifespan, minimized energy consumption, and fewer machine breakdowns. However, while the Balanset-1A could address the rotor's balance, it was evident that the crusher required comprehensive refurbishment. The age and wear of the crusher highlighted the need for a holistic approach to its restoration, encompassing both balancing and repair of its crucial components.


Nikolai Shelkovenko

Nikolai Shelkovenko

Nikolai Shelkovenko is a vibration analysis engineer and the founder and CEO of Vibromera. For more than 15 years he has balanced rotating equipment in the field rather than on a test bench: mulchers, industrial fans, crushers, centrifuges, shafts and spindles. That work is what the Balanset instruments grew out of — they were designed as a tool a specialist can carry to the machine and use alone, on site, not as laboratory equipment. Vibromera was founded in 2017 and has been based in Porto, Portugal, since 2023. Development, assembly and support of the Balanset line all happen here. The flagship instrument is the Balanset-1A, a portable analyser for single- and two-plane balancing and for vibration diagnostics. Nikolai is personally involved in customer support, in working through difficult balancing cases and in the development of the software. He works with customers worldwide, in any language.

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