2018年5月23日星期三

Tork Drive worm gear efficiency

Tork Drive  worm gear efficiency :
Reduce Energy Consumption and Energy Costs
If you have an application that does not need to be run at full speed, then you can cut down energy costs by controlling the motor with a variable frequency drive, which is one of the benefits of Variable Frequency Drives. worm gear box allow you to match the speed of the motor-driven equipment to the load requirement. There is no other method of AC electric motor control that allows you to accomplish this.
Tork Drive ensuring optimal motor application speed. Because of the worm gear box​ optimal control of the motor’s frequency and voltage, the VFD will offer better protection for your motor from issues such as electro thermal overloads, phase protection, under voltage, overvoltage, etc.

2018年5月14日星期一

equation to calculate efficiency of worm gears

worm gear. In these widely used speed reducers, a worm gear drives a worm wheel to provide output motion at a right angle to the motor shaft . 
 These speed reducers are often the best value for applications in which the motor and reducer are coupled in-line with the driven shaft, Figure 5. Their efficiency usually ranges between 95 and 98%, regardless of speed ratio. Cost is competitive with worm gear motor where the center distance is 2-in. or more.
The worm gear and worm wheel have non-intersecting, perpendicular axes, and the meshing action between gears occurs over a relatively large contact area. This meshing action consists primarily of a sliding motion that creates friction between the gears.
Worm gear efficiency varies significantly when lead angle, friction factor and gear ratio changes. 

2018年5月8日星期二

vertical mounting of the helical gearboxes

reduction gear box are available in ratings from 1 to 200 HP and output speeds from 1.5 to 1430 RPM with AGMA Class I, II, or III service factors. The Type G design incorporates a standardized AGMA motor flange which aligns a NEMA frame footless AC motor to a modular gear-drive which provides a single source motor and gear assembly. Nuttall Gear can offer either standard or high efficiency AC motors with Nuttall Gear’s proprietary non-NEMA AC motor shaft in all types of motor enclosures. The modular gear assembly incorporates precision helical gearing in single, double, triple, and quadruple reductions, rugged cast iron housings, and tapered roller bearings.
speed increaser gearbox can be arranged for floor, wall, or vertical mounting. Many modifications, in both mechanical and electrical, such as brakes, special motor insulation, special oil seals, and marine duty are all available.