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Comparative analysis of AGV steering wheel and differential wheel
AGV is a key link in factory automation. With the deepening of AGV application, the demand for AGV in enterprises is increasing, mainly characterized by the following characteristics: 1. Small size and large load: AGV body size is generally relatively small, and the demand for carrying capacity is high; 2. Efficient: In order to meet the production rhythm of the workshop, the operation of AGV is required to be reliable and fast; 3. Omnidirectional: While achieving traditional handling, we also hope that AGV can be more flexible and meet more movements.
The steering wheel is an integrated mechanical structure that integrates drive motors, steering motors, reducers, and other components. Compared to traditional AGV car differential control methods, the steering wheel has high integration and strong adaptability, and can quickly deploy AGVs, mobile robots, and other applications to meet the needs of AGVs. Rudder wheel drive is the main development direction of AGV applications.
yoe difference between steering wheel and differentialyo
The traditional AGV adopts a differential form to drive the AGV body. Differential drive generally uses springs to press on differential wheels, generating friction through the pressure of the springs to pull the body. The wheel diameter of differential drive is relatively small, and for greater friction, the adhesive is relatively soft. For some lightweight AGVs, differential drive is also commonly used. Differential drive relies on the friction generated by spring pressure, So it is easy to slip under heavy loads; At the same time, the wheel diameter is relatively small, the passability is poor, and the wheel surface is not wear-resistant; The control principle of differential drive is to create a speed difference between two wheels to control AGV tracking, resulting in insufficient power utilization of the motor on a single wheel.
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Serial number |
Comparison project | Steering wheel | Differential wheel |
| 1 | Main advantages | 1) Compact structure with large load-bearing capacity; 2) Dual support mechanism, with uniform force distribution; 3) Multi stage planetary deceleration, anti impact; 4) Modular design allows for the free installation of various motors; 5) Flexible control methods; 6) Adopting patented technology and possessing independent intellectual property rights. | 1) Simple structure and convenient manufacturing; 2) Integrated control for easier use |
| 2 | Main Disadvantages | The difficulty of manufacturing is high, and the precision requirements for parts processing are high, which can easily lead to substandard phenomena such as excessive noise. | 1) Differential control leads to low motor efficiency; 2) Relying on spring compression to generate friction, it is easy to slip, and the traction force is severely constrained by the ground; 3) Weak load capacity and inflexible control |
| 3 | Traction force | Rigid bearing capacity, ≤ 15 tons | Proportional to the compression spring, basically ≤ 2T tons |
| 4 | Bearing capacity | Rigid bearing capacity, ≤ 10 tons | Spring pressure ≤ 500kg |
| 5 | Wheel diameter | Large wheel diameter, good passability | Small wheel diameter, poor passability |
| 6 | speed ratio | Multiple speed ratios available, small power can output large torque | Optional speed ratio is small |
| 7 | Drive motor | Brushed/brushless/servo, up to 7.5KW motor can be replaced with different brands and powers |
Optional small |
| 8 | control | Magnetic navigation; Laser navigation; QR code navigation; Inertial navigation; Natural navigation | Magnetic navigation; Laser navigation; QR code navigation; Inertial navigation; Natural navigation |
The AGV drive wheel is a very non-standard and important component, which can be customized adaptively according to specific application scenarios, vehicle size, control requirements, etc. Smart Wheel Technology has rich experience in non-standard design customization of AGV steering wheel drive.
Drive wheel,motor,control
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