Variable speed gearbox
Variable-speed gearbox description
Variable-speed gearbox is made up of worm drive gearbox, stepless variator, and ac motor, etc. as one of the speed multiplier gearbox manufacturers. SDT variable speed gearbox has a standard modular design and special application in the engineering machine etc.
1. Aluminum alloy housing
2. High-quality bearings prevent leaks, contribute to flexibility in mounting and increase reducer life
3. NEMA and IEC motors inputs
4. Double-lip oil seals
5. O-rings are used to prevent leaks
6. Standard hollow output bore and optional plug-in shafts provide greater flexibility.
7. Automated manufacturing process from an ISO 9001 certified company assures quality, reliable gearing.
The variable speed gearbox’s cone disc is built in an aluminum die-casted housing respectively for motors of IEC frame size 63, 71 and 80. The cone discs are made in case hardened bearing steel, to increase the durability of each variable speed gearbox.
Each SDT variable speed gearbox equipped with filler, level, and breather plugs to make it suitable for any mounting position.
SDT Variable speed gearbox can operate in both directions, input and output shafts rotate in the same direction.
Handwheel can be fitted to both sides of the control box for convenient installation. mechanical variable speed drive
Variable speed gearbox is supplied with mineral lubricant ISO VG 46, with the quantity of oil for positions B3-B5 mechanical variators
As a consequence of its operating principles, based on the satellite friction, motor variator the appropriate lubrication is essential for the correct duration and efficiency of SDT. mechanical variable speed drives. It is an electronic speed variator strictly recommended, in addition, to avoid mixing two different oil types. speed variators, If you change the type of oil, make first sure you clean the variator with appropriate chemical thinner mechanical gear reducer.
All mechanical speed variator are supplied with filler, level, and breather plugs. Before the start-up speed variator gearbox, you must place the breather plug on the top like in the following pictures variator drive.
Variable-speed gearbox Materials
Housing: die-cast aluminum alloy (Housing size: 025-090); cast iron (Housing size: 110-150) Shaft: 20Cr, carbonize and quencher heat treatment make the hardness of gear tooth surface up to 56-62 HRC, retain carburization layer’s thickness between 0.3-0.5mm after precise grinding
Worm Wheel: Wearable bronze alloy.
Variable-speed gearbox technical parameter
|Drive AC asynchronous motor :||Power(P1)||Motor or Diesel Engine, 0.18Kw~7.5Kw|
|Voltage (V)||110V~480V. or customized|
|Phase||Three or Single(< 3 Kw)|
|Pole||2 or 4 or 6 or 8 or 10|
|Frequency||50Hz,60Hz, or 50/60Hz|
|Insulation Class||B or F|
|IP||IP54 or IP55|
|Cooling Type||IC0141(Fan Self-cooling) or Blower|
|Terminal Box||0° or 90° or 180° or 270°,etc.|
|Link Wire||Y(P1≤3Kw), Δ(P1>3Kw)|
|Operation Temperature||Normally:-15℃~ 40℃.|
|Structure :||Planetary Plate (Variable speed gearbox)|
|Unit Size :||02 04 07 15 22 40 55 75|
|Connect Method :||IEC flange, Solid input shaft|
|Output Shaft :||Solid output shaft with foot or flange|
|Transmission Ratio(i) :||Stage||Transmission Ratio||Variable output speed|
|Rated Torque(N.m) :||3N.m~2000N.m|
|Service Factor(Fs) :||1.5~4.0|
|Mounting Position :||B3||With foot mounted|
|B5||With output flange mounted|
|B35||With foot and output flange mounted|
Industrial Machine, Food Stuff, Ceramics, Chemical, Packing, Dyeing, Woodworking, Glass. etc
- Variable-speed gearbox used on the flour roller machine