Robot RV Gear Reducer Cycloidal Speed Reducer As Nabsteco RV 120C

Robot RV Reduction Gear, Cycloidal Speed Reducer As Nabsteco RV 120C​

 

 

Application of RV Reduction Gear

 

High - end intelligent equipment industry such as industrial robots, external shafts, precision machine tools, radars, and medical devices.

 

 

RV Reduction Gear 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, RV-320C, RV-320CA.
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 Reduction Gear

 

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 mechanism.
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 Reduction Gear RV-120C -36.75 technical parameters

 

Model	10C	27C	50C	100C	120C	200C	320C	320CA
Reduction ratio *	27	36.57	32.54	36.75	36.75	34.86	35.61	140 210
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
Weight (kg)	4.5	8.5	14.5	19.6	21	55.5	80	80

 

*  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 15r/min

 

 

RV Reduction Gear RV-120C -36.75 external dimension table 

Unit:mm

Model	10C	27C	50C	100C	120C	200C	320C	320CA
A	59	67.5	79	82.5	82.5	120.5	126	148.5
¢B	110 h7	140 h7	176 h7	199 h7	199 h7	260 h7	340 h7	360 h7
¢C	31	43	57	71	71	70	138	132
¢D	146 h7	181 h7	222 h7	250 h7	250 h7	346 h7	440 h7	450 h7
E	26.35±0.6	31.35±0.65	34.35±0.65	39.35±0.65	39.35±0.65	56.2±0.85	71.75±0.9	-
F1	6	8	9	9	6	9	9	12
F2	M8	M8	M10	M12	¢5	M16	¢20	M16
F3	15	18	20	20	-	25	-	25
¢G	82	116	133	160	140	194	252	328
H1	4	4	4	6	-	4	4	3
H2	M3	M4	M4	M6	-	M6	M6	M6
H3	8	8	10	10	-	13	10	12
¢I	40	56	73	83	-	116	152	144
J	8	12	8	14	14	8	18	16
¢K	6.6	6.6	9	11	M10	13	M12	13
¢L	134	169	208	233	233	324	415	425

 
 

Structure principle of RV Reduction Gear

 

 

• 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.

 

• Crank shaft/output shaft

Realizing the transmmision and output of the torque by connection the 1st and 2nd stage gear reduction mechanism.

 

• Support bearing

Provides extremely high bending moments and load bearing capacity.

 

 

 

 

Warranty service of RV Reduction Gear

 

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