Industrial Robot RV Joint Speed Reducer Gearbox RV-120C-36.75, RV
Application of RV gear reducer
High - end intelligent equipment industry such as industrial
robots, external shafts, precision machine tools, radars, and
RV gear reducer advantages
Nantong Zhenkang has successfully developed RV reducers for robots
under 300 kg, with a total of 17 products.
E series RV-20E, RV-40E, RV-80E, RV-110E, RV-160E, RV-320E, RV-450E
C series RV-10C, RV-27C, RV-50C, RV-100C, RV-120C, RV-200C,
And RD series RD-20E, RD-50C.
Zhenkang's technological advancement lies in the key technologies
of design principles, structural design, material optimization,
processing and assembly processes, heat treatment, process
inspection and quality control, and comprehensive performance
testing of high - precision RV reducers. Nantong Zhenkang has
patents for inventions on the core technology of RV reducers.
Independently developed the cycloidal wheel shaping technology,
using the world's most advanced ThinkCore modification method,
solved the RV reducer's shape modification problem for the first
time in China. This technology has been made into a design software
module, breaking the foreign special practice design software.
Blockade. It has taken the lead in mass production of robot RV
reducers in China.
Based on the comprehensive import performance of Nantong Zhenkang
RV reducer, its market competitiveness lies in reasonable prices.
With higher cost performance, the same quality and installation
interchangeability, it has won widespread recognition in the
market. Since 2012, more than 30,000 RV reducers have been put on
the market, and user feedback has been good. At the same time, in
2018, Nantong Zhenkang RV reducer has a production capacity of
30,000 units, and has been favored by more and more robot
manufacturers with its short delivery time, high cost performance
and stable quality. On December 18, 2016, the 25,000 square meter
factory building of Nantong Zhenkang Welding Robot Industrial Park
has been basically completed. After the project is fully put into
operation, the park's development goal is to produce 200,000 RV
reducers and 10,000 welding robots.
Working principle of RV gear reducer
The RV drive is a new type of transmission developed on the basis
of cycloidal pinwheel drives.
The RV reducer consists of an involute cylindrical gear planetary
reduction mechanism and a cycloidal pinion planetary reduction
The involute planetary gear is integrated with the crankshaft as an
input to the cycloidal pinion drive section.
The crankshaft drives the cycloidal wheel for eccentric motion.
The crank rotates clockwise clockwise for 1 week and the cycloidal
wheel moves 1 tooth counterclockwise.
The core components of the RV reducer are the pin housing, the
crank shaft and the cycloidal wheel.
RV gear reducer RV-120C -36.75 technical parameters
|Reduction ratio *|
|Rated torque (Nm) *||100||270||500||1000||1200||2000||3200||3200|
|Maximum working torque (Nm)||250||675||1250||2500||3000||5000||8000||8000|
|Maximum impact torque (Nm)||500||1350||2500||5000||6000||10000||16000||16000|
|Maximum output speed (r/min)||80||60||50||40||40||30||25||25|
|Backlash/idle stroke (arc.min)||1||1||0.8||0.8||0.8||0.6||0.6||0.6|
|Torsional rigidity (Nm/arc.min)||46||145||255||510||600||976||1960||1960|
|Allowable torque (Nm)||680||980||1760||2450||2450||8800||20550||20550|
|Allowable thrust force (N)||5880||8800||11750||13700||13700||19600||29350||29350|
* Note: This gear reduction ratio is the unit gear reduction ratio,
excluding that generated by the input gear and the two way big gear
* The output torque is the rated torque when the output speed is at
RV gear reducer RV-120C -36.75 external dimension table
|¢B||110 h7||140 h7||176 h7||199 h7||199 h7||260 h7||340 h7||360 h7|
|¢D||146 h7||181 h7||222 h7||250 h7||250 h7||346 h7||440 h7||450 h7|
Structure principle of RV gear reducer
- Input shaft/planetary gear
Form the'1st stage planetary gear reduction, realizing different
gear reduction ratio through the changing of the gear.
- Pin shell/pin/cycloid 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.
Warranty service of RV gear reducer
We provide one year quality warranty for our ZKRV series of gear
reducers provided that they are used under rated conditions,
assembled properly or applied under good lubrications. During this
warranty period, refund or free replacement is guaranteed by our
company when the performance of the gear reducer is severely
downgraded or malfunctioned, however, we will not be responsible
for the other costs arisen hereof.
The following situations are exempted from our warranty scope while
paid service is available.
- The gear reducer is not used based on given conditions
- Foreign objects enter into the gear reducer
- The specification of the lubrication and supporting material used
does not meet with given conditions
- Disassemble or reassemble the gear reducer without authorization
* Please refer to the installation drawing for the actual mounting