1. Introduction
This manual provides detailed instructions for the safe and efficient use of your ZGY370 Worm Gear Motor. The ZGY370 is a versatile DC worm gear motor designed for applications requiring high torque and reversible operation. Its all-metal gearbox ensures durability, though it may produce more noise than plastic gear alternatives.
2. Safety Precautions
Failure to follow these safety instructions may result in injury or damage to the product.
- Power Supply: Before supplying power, always verify the rated voltage and current. Over-voltage and under-voltage are strictly prohibited.
- Reverse Polarity: Permanent magnet motors must be protected against reverse power connection.
- No-Load Operation: Series-excited motors must not be operated under no load.
- Grounding: The machine base should be reliably grounded (grounding resistance ≤ 4Ω).
- Circuit Protection: The power supply circuit should be equipped with fuses and surge absorbers to prevent short circuits and surges.
- Maintenance Safety: Before any maintenance or wiring, power off and verify the electricity. Discharge any capacitors and strictly prohibit live operation.
- Insulation Resistance: Do not start the motor if the insulation resistance does not meet the standard (low voltage ≥ 0.5MΩ / high voltage ≥ 2MΩ).
- Rotating Parts: Install metal protective covers on all rotating parts. Manually rotate the parts before startup to ensure no jamming, preventing locked-rotor burnout and injury.
- Monitoring Operation: Monitor current, temperature rise, and sparks during operation. If sparks exceed Level 2, or if there is abnormal noise/overheating, immediately shut down the machine without touching operating components.
- Magnetic Fields: Keep permanent magnet machines away from strong magnetic fields to prevent loss of excitation due to impact.
- Fault Response: In case of a fault, immediately cut off the power. For fires, use dry powder or carbon dioxide fire extinguishers; water is strictly prohibited. In case of electric shock, cut off the power before providing rescue. Never use bare hands to stop a runaway series excitation machine.
- Disposal: Dispose of the motor and its components as electronic waste.
3. Specifications
The ZGY370 Worm Gear Motor is available in various configurations. Refer to the table below for detailed specifications based on voltage and reduction ratio.
| Reduction Ratio | Rated Voltage (V) | No Load Speed (rpm) | No Load Current (mA) | Rated Torque (Kg.cm) | Rated Speed (rpm) | Rated Current (A) | Maximum Torque (Kg.cm) | Stall Current (A) |
|---|---|---|---|---|---|---|---|---|
| 40-1000 | 6 | 150 | <100 | 0.2 | 120 | <0.6 | 0.9 | 3.3 |
| 90 | <100 | 0.5 | 70 | <0.6 | 1.6 | 3.3 | ||
| 40 | <100 | 2.0 | 30 | <0.6 | 7.5 | 3.3 | ||
| 30 | <100 | 5.3 | 22 | <0.6 | 10 | 3.3 | ||
| 23 | <100 | 6.7 | 18 | <0.6 | 13 | 3.3 | ||
| 18 | <100 | 9.0 | 15 | <0.6 | 18 | 3.3 | ||
| 10 | <100 | 15.9 | 7.5 | <0.6 | 30 | 3.3 | ||
| 40-1000 | 12 | 150 | <60 | 0.2 | 120 | <0.6 | 0.9 | 1.7 |
| 90 | <60 | 0.5 | 70 | <0.6 | 1.6 | 1.7 | ||
| 40 | <60 | 2.0 | 30 | <0.6 | 7.5 | 1.7 | ||
| 30 | <60 | 5.3 | 22 | <0.6 | 10 | 1.7 | ||
| 23 | <60 | 6.7 | 18 | <0.6 | 13 | 1.7 | ||
| 18 | <60 | 9.0 | 15 | <0.6 | 18 | 1.7 | ||
| 6 | <60 | 26.5 | 4 | <0.6 | 45 | 1.7 | ||
| 40-1000 | 24 | 150 | <40 | 0.2 | 120 | <0.3 | 0.9 | 0.85 |
| 90 | <40 | 0.5 | 70 | <0.3 | 1.6 | 0.85 | ||
| 40 | <40 | 2.0 | 30 | <0.3 | 7.5 | 0.85 | ||
| 30 | <40 | 5.3 | 22 | <0.3 | 10 | 0.85 | ||
| 23 | <40 | 6.7 | 18 | <0.3 | 13 | 0.85 | ||
| 18 | <40 | 9.0 | 15 | <0.3 | 18 | 0.85 | ||
| 6 | <40 | 26.5 | 4 | <0.3 | 45 | 0.85 |
3.1 General Product Properties
- Brand Name: CNMAWAY
- Model Number: ZGY370
- Type: Gear Motor
- Construction: Permanent Magnet
- Commutation: Brush
- Protect Feature: Drip-proof
- Efficiency: IE 2
- Certification: CE
- Origin: Mainland China
- Color: Gray
- High-concerned chemical: None
3.2 Dimensions
- Motor Body Length: 31mm
- Gearbox Length: 46mm
- Total Height (including shaft): 32mm
- Shaft Diameter: 6mm
- Shaft Length: 14mm
4. Setup and Installation
4.1 Mounting
The motor features mounting holes on the gearbox for secure installation. Ensure the mounting surface is stable and can support the motor's weight and operational forces. The mounting holes may be positioned in a way that requires careful planning for integration into your project.
4.2 Electrical Connection
The ZGY370 motor operates on DC voltage (6V, 12V, or 24V depending on the model). It has two electrical contacts at the rear of the motor. Connect your DC power supply to these terminals.
The motor's direction of rotation is determined by the polarity of the applied voltage. Reversing the polarity will reverse the motor's direction.
5. Operating Instructions
Once properly installed and connected, the ZGY370 motor is ready for operation. Apply the rated DC voltage to the terminals. The motor will begin to rotate at the speed corresponding to the selected voltage and reduction ratio.
- Reversible Operation: To change the direction of rotation, simply reverse the polarity of the DC power supply.
- Speed Control: The motor's speed is primarily determined by its internal gearing and the applied voltage. Refer to the specifications table for expected RPMs at different voltages.
- Load: Ensure the load applied to the motor does not exceed its rated torque to prevent damage or premature wear.
6. Maintenance
Regular maintenance helps ensure the longevity and optimal performance of your ZGY370 Worm Gear Motor.
- Lubrication: Regularly add lubricating grease to the gearbox. The motor may arrive with minimal lubrication, and adding more can significantly reduce operational noise and wear.
- Brush Replacement: Regularly replace worn brushes to maintain efficient operation.
- Commutator Cleaning: Clean carbon deposits from the commutator segments as needed.
- Inspection: Periodically inspect the motor and gearbox for any signs of wear, damage, or loose connections.
7. Troubleshooting
7.1 Abnormal Noise from Reducer
Due to long-distance transportation or transfer, the internal gearbox may experience abnormal noise or dislocation. Since it uses all-metal gears, it is naturally louder than plastic gears.
Solution:
- Disassembly: Carefully disassemble the gearbox.
- Rearrange Gears: Rearrange the metal gears within the gearbox to ensure proper alignment.
- Lubrication: Apply sufficient lubricating grease to all gears.
7.2 General Faults
- Motor Not Starting: Check power connections, ensure correct voltage and polarity. Verify insulation resistance.
- Overheating/Excessive Sparks: Immediately shut down the motor. Check for excessive load, proper lubrication, and clean commutator segments.
- Loss of Excitation: Ensure the motor is not exposed to strong magnetic fields or severe impacts.
8. User Tips
- Lubrication is Key: Many users recommend disassembling and adding extra lubricant to the gearbox upon receipt for quieter operation and extended lifespan.
- Torque Performance: The motor generally delivers its rated torque with a good margin, making it suitable for demanding applications.
- Mounting Considerations: Be aware that the mounting holes might be positioned somewhat awkwardly, requiring careful planning for integration into your projects.
- Versatile Applications: This motor has been successfully used in various projects, including 3D printing devices, loop antennas, and remote tuning of capacitors.
9. Warranty and Support
For any issues not covered in this manual, or for warranty claims, please contact the seller or manufacturer directly. Refer to the original purchase documentation for specific warranty terms and contact information.
A comprehensive user manual in PDF format is available for download. This document provides additional technical details and diagrams.