Besplatan Inženjerski Alat
Kalkulator napetosti remena
Izračunajte odgovarajuću napetost remena koristeći metodu otklanjanja, metodu frekvencije ili direktno mjerenje sile. Podržava V-remene, vremenske remene i plosnate remene.
Rezultati
Metoda otklanjanja
Metoda otklanjanja mjeri napetost remena primjenom poznate okomite sile na sredini raspona remena i mjerenjem rezultirajućeg otklanjanja.
- T — napetost statičnog dela (N)
- F — primenjena sila otklona (N)
- L — dužina slobodnog raspona (mm)
- d — izmeren otklon na sredini (mm)
Metoda frekvencije
Frekvencijska metoda koristi prirodnu frekvenciju vibracija raspona remena. Ovo je tačnije i ponovljivo, posebno za zupčaste remene.
- T — napetost remena (N)
- m — masa remena po jedinici dužine (kg/m)
- L — dužina slobodnog raspona (m)
- f — izmerena prirodna frekvencija (Hz)
Preporučeni opsezi napetosti
| Tip remena | Napetost po remenu (N) | Smjernica za otklon |
|---|---|---|
| Klinasti remen SPZ | 150 – 350 | 1,6 mm na 100 mm raspona |
| Klinasti remen SPA | 200 – 500 | 1,6 mm na 100 mm raspona |
| Klinasti remen SPB | 300 – 700 | 1,6 mm na 100 mm raspona |
| Klinasti remen SPC | 500 – 1200 | 1,6 mm na 100 mm raspona |
| Zupčasti remen (HTD) | Po specifikaciji proizvođača | Frekvencijska metoda je preporučena |
| Ravni remen | 200 – 1000 | Varira sa širinom |
Praktični primjer
Zadano: Raspon L = 1500 mm, sila F = 20 N, progib d = 5 mm
T = (20 × 1500) / (4 × 5) = 30000 / 20 = 1500 N po kraku
Zadano: Masa m = 1,2 kg/m, raspon L = 0,5 m, frekvencija f = 45 Hz
T = 4 × 1,2 × 0,5² × 45² = 4 × 1,2 × 0,25 × 2025 = 2430 N
⚠️ Napomena: Novi remeni trebaju biti zategnuti 20–30% više od nominalne vrednosti kako bi se kompenzovalo početno istezanje. Ponovno zategnite nakon 24–48 sati rada.
There are three main methods:
- Deflection method: Apply a known force perpendicular to the belt at the midpoint of the span. Measure the deflection. Use the formula T = (F × L) / (4 × d).
- Frequency method: Pluck the belt span and measure the vibration frequency with a sensor or app. Use T = 4 × m × L² × f².
- Direct measurement: Use a dedicated belt tension gauge (e.g., Gates Krikit, Optibelt TT) to read the tension directly.
The frequency method is generally more accurate and repeatable. It eliminates human error in force application and deflection measurement. It is especially preferred for timing belts where precise tension is critical.
The deflection method is simpler and requires only a ruler and a spring scale. It is adequate for V-belts and general industrial use.
Too loose: Belt slipping, squealing noise, heat generation, premature wear, reduced power transmission efficiency, and inconsistent speed.
Too tight: Excessive bearing loads, premature bearing failure, shaft deflection, belt fatigue and cracking, increased energy consumption.
Recommended schedule:
- After installation: Check after first 24–48 hours (initial stretch)
- Routine: Every 3–6 months during scheduled maintenance
- After events: After any drive modification, motor replacement, or unusual vibration/noise
Keep a log of tension readings to track belt condition over time.
Yes. New belts undergo significant initial stretch during the first hours of operation. Best practice:
- Tension new belts 20–30% above the nominal target value
- Run the drive for 24–48 hours
- Re-tension to the normal operating value
- Check again after one week of operation
Used belts that have already stabilized can be tensioned directly to the nominal value.
Procedure opisane na ovoj stranici razvio je i terenski testirao tim Vibromera koristeći Balanset-1A, prenosivi dvokanalni balanser i analizator vibracija za balansiranje rotora na licu mjesta.
Profesionalni instrumenti za polje balansiranja i softver. Monitoring vibracija za opremu sa remenim pogone. Korišćeno u više od 50 zemalja.
