|Name:||RV Gearbox||Reduction Gear Ratio:||154.8 / 171 / 192.4|
|Max Working Torque:||11250Nm||Torsional Rigidity:||1175 Nm/arc.min|
inline speed reducer,
cycloidal pinwheel reducer
High Load Reduction Gear RV E, Cycloidal Pinwheel Reducer Nabtesco RV-450E
Globally, the precision reducers used in the robot industry can be divided into Cycloidal Gear reducer, harmonic reducers and SPINEA reducers. The market share of the three is about 40%, 40%, 20%. Among them, RV gearbox and harmonic reducer are the most mainstream precision reducers for industrial robots.
The RV gearbox has the characteristics of large transmission ratio, high transmission efficiency, high motion precision, small backlash, low vibration, high rigidity and high reliability. In the articulated robot, the RV gearbox is generally placed at a heavy load such as the base, the boom, and the shoulder.
In the production process, industrial robots usually perform repeated actions to complete the same process.
In order to ensure that industrial robots can reliably complete process tasks in production and ensure process quality, the positioning accuracy and repeat positioning accuracy of industrial robots are very high demanding.
Therefore, in order to improve and ensure the accuracy of industrial robots, it is necessary to use a reducer.
Generally, the robot joint reducer requires short transmission chain, small volume, high power, light weight and easy control.
Currently widely used robot reducers mainly include RV reducers and harmonic reducers.
For 20 years, Nantong Zhenkang has been focusing on the development and production of the core components of precision robots, precision motors and precision reducers, from the beginning of the printing motor, to the later wire feeders and automated welding trolleys, to the current RV reducers. In 2010, it developed the RV reduction gear for industrial robot transmission core components and series AC servo motors, which have been put into mass production.
Working principle of Cycloidal Gear reducer
Cycloidal Gear reducer RV-450E technical parameters
|Reduction gear ratio||
|Rated torque (Nm) *||180||400||800||1100||1600||3200||4500|
|Maximum working torque (Nm)||450||1000||2000||2750||4000||8000||11250|
|Maximum impact torque (Nm)||900||2000||4000||5500||8000||16000||22500|
|Maximum output speed (r/min)||75||70||70||50||45||35||25|
|Backlash / idle stroke (arc.min)||1||0.8||0.8||0.7||0.6||0.5||0.5|
|Torsional rigidity (Nm/arc.min)||48||105||195||290||390||978||1175|
|Allowable torque (Nm)||880||1600||2150||2940||3900||7050||8800|
|Allowable thrust force (N)||3920||5190||7840||10770||14780||19600||24500|
* Note: The output torque is the rated torque when the output speed is at 15 r/min .
Cycloidal Gear reducer RV-450E external dimension table
|¢B||124 h7||160 h7||190 h7||208 h7||240 h7||284 h7||328 h7|
|¢C||105 h6||135 h7||160 h7||182 h7||204 h7||245 h7||275 h7|
|¢D||123 h7||160 h7||190 h7||200||230||280||310|
|¢E||145||190||222||244 h7||280 h7||325 h7||370 h7|
Structure principle of Cycloidal Gear reducer
Form the'1st stage planetary gear reduction, realizing different gear reduction ratio through the changing of the gear
Form the 2nd stage gear reduction, achieving high rigidity and high accuracy through the cycloid meshing rate higher than 80% and the nearly zero - backlash quality fit.
Realizing the transmmision and output of the torque by connection the 1st and 2nd stage gear reduction mechanism.
Provides extremely high bending moments and load bearing capacity.
* Please refer to the installation drawing for the actual mounting.
Contact Person: Daisy He