SHPR-C Hollow RV Reducer
At present, it has strategically cooperated with leading domestic robot companies such as Anhui Efort, Nanjing Estun, Guangzhou CNC, Qianjiang Robot, etc., and established the leading position of domestic robot reducers, with quality comparable to Nabtesco reducers.
Product Description
Working Principle
The SHPR-C series RV reducer adopts a two-stage reduction structure, which consists of a planetary gear reduction front stage and a cycloidal pinwheel reduction rear stage. The specific working process is as follows:
- First stage reduction (planetary gear reduction)
The rotation of the input shaft is transmitted to the planetary gear through the central gear, and the reduction is carried out according to the gear ratio. The reduction effect of the planetary gear is connected to the second stage transmission mechanism through the crankshaft.
- Second stage reduction (cycloidal pinwheel reduction)
The rotation of the crankshaft drives the cycloidal wheel to do eccentric movement. For every rotation of the crankshaft, the cycloidal wheel will rotate one pitch in the opposite direction. This process is further reduced by the meshing of the cycloidal wheel and the fixed pin teeth, and finally outputs high torque and low speed power.
- Key design features:
Double eccentric structure: The centrifugal force is balanced by two cycloidal wheels with a phase difference of 180°, reducing vibration and improving accuracy.
High rigidity angular bearing: The integrated large angular bearing supports large loads without the need for additional support devices, simplifying installation.
Backlash control: The backlash is less than 1 arc minute (≤1 arcmin), ensuring high repeatability.
Common Models
SHPR-10C-27
SHPR-27C-36.57
SHPR-50C-32.54
SHPR-100C-36.75
SHPR-200C-34.86
SHPR-320C-35.61
SHPR-500C-37.34
Spec Information
| Model | Allowable Acceleration/ Deceleration Torque (Nm) | Momentary Max Allowable Torque (Nm) |
Allowable Moment (Nm) |
Momentary Max Allowable Moment (Nm) |
Bending rigidity (typical value) (Nm/arc.min) |
Torsional rigidity (typical value) (Nm/arc.min) |
Max Blacklash (arc.min) |
Allowable Axial Load (N) |
Weight (kg) |
| SHPR-10C | 245 | 490 | 686 | 1372 | 421 | 47 | 1' | 5890 | 4.6 |
| SHPR-27C | 662 | 1323 | 980 | 1980 | 1068 | 147 | 1' | 8840 | 8.5 |
| SHPR-50C | 1225 | 2450 | 1764 | 3528 | 1960 | 255 | 1' | 11750 | 14.6 |
| SHPR-100C | 2450 | 4900 | 2450 | 4900 | 2813 | 510 | 1' | 13760 | 19.5 |
| SHPR-120C | 2940 | 5880 | 3920 | 7840 | 2813 | 588 | 1' | 15720 | 20.4 |
| SHPR-200C | 4900 | 9800 | 8820 | 17640 | 9800 | 980 | 1' | 19700 | 55.6 |
| SHPR-260CA | 6370 | 12740 | 12740 | 25480 | 8320 | 1540 | 1' | 24500 | 68.6 |
| SHPR-320CA | 7840 | 15680 | 20580 | 39200 | 12740 | 1960 | 1' | 29600 | 92.1 |
| SHPR-320C | 7840 | 15680 | 20580 | 39200 | 12740 | 1960 | 1' | 29600 | 79.5 |
| SHPR-500C | 12000 | 24000 | 34000 | 77714 | 24100 | 3400 | 1' | 39200 | 154 |
Case
- Collaborative robots
Application cases: Hollow RV reducers (such as the SHPR-C series) have a hollow shaft design that allows cables and air pipes to be built in, significantly optimizing the spatial layout of robot joints. For example, Zhenkang Machinery's 500 kg heavy-duty friction stir welding robot uses a hollow reducer to achieve high-precision welding of the wings of the C919 large aircraft, replacing imported equipment.
Technical advantages: backlash ≤ 1 arc minute, torsional stiffness up to 147 Nm/arc.min, supports frequent start-stop and high-speed operation.
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