How to choose AGV chassis -

When choosing an AGV chassis, the following multiple factors need to be comprehensively considered:

Determine actual needs: Select the chassis according to the weight of the goods that the AGV needs to transport, and consider a certain safety margin. For example, when handling heavy objects such as engine blocks in an automobile manufacturing workshop, it may be necessary to choose a chassis that can bear more than 3 tons; while in a 3C electronics factory for handling small parts, a chassis with a load capacity of 500 kilograms may be sufficient.
Consider dynamic load: In addition to the static load, also consider the dynamic load changes of the AGV during acceleration, deceleration, and turning to prevent the chassis from being damaged due to excessive stress.

Differential drive: It has a simple structure and low cost, and is suitable for light-duty scenarios where the requirement for flexibility is not particularly high, such as simple material handling in a small warehouse.
Steering wheel drive: A single steering wheel is suitable for simple straight-line driving and turning requirements; dual steering wheels or four steering wheels can provide higher mobility and flexibility, and are often used in occasions that require frequent steering and precise positioning in narrow spaces, such as in a densely stored logistics warehouse.
Mecanum wheel drive: It can achieve translation and rotation in any direction, and can operate flexibly in a narrow space, but it has a high cost and complex control, and is suitable for special applications with extremely high requirements for motion flexibility.

Laser navigation: It has high precision and strong environmental adaptability, and can construct maps and position in real time, but the cost is relatively high. It is suitable for large logistics centers with high requirements for positioning accuracy and relatively complex environments.
Visual navigation: It can use the features of the natural environment for navigation, without the need for a large number of manual markings, and the cost is relatively low. However, it is easily affected by environmental factors such as light, and can be used in scenarios where cost sensitivity is high and the environmental lighting conditions are stable.
Magnetic navigation: The AGV is guided to travel through magnetic strips, which has a low cost and good stability, but it is difficult to change the route. It is often used in production workshops where the route is relatively fixed and the requirement for flexibility is not high.

Ground conditions: For flat indoor cement floors or tiled floors, a wheeled chassis can meet the requirements; if it is in a complex environment such as an uneven, pitted floor or an outdoor muddy road, a tracked chassis can be considered.
Space size: In a narrow and tortuous environment, a chassis with a small turning radius and high flexibility needs to be selected, such as a dual steering wheel or Mecanum wheel chassis; in a spacious area, the requirement for the flexibility of the chassis is relatively low.
Environmental temperature, humidity, etc.: In environments with high temperature, high humidity, a large amount of dust, or corrosive gases, a chassis with the corresponding protection level should be selected to ensure that its electrical components, mechanical parts, etc. are not affected by the environment.

Procurement cost: The prices of different types and brands of AGV chassis vary greatly. For example, the price of high-end imported chassis may be several times that of domestic ordinary chassis, and it is necessary to comprehensively consider according to the budget and actual needs.
Operation cost: It includes energy consumption, maintenance cost, etc. For example, the energy consumption of a tracked chassis is generally higher than that of a wheeled chassis, and the track wears out quickly, and the maintenance cost is also relatively high.
Service life: A chassis with good quality and durability may have a higher procurement cost, but in the long run, it can reduce the overall cost of ownership.

Braking system: A reliable braking system is the key to safety. Indicators such as the emergency braking distance and braking stability should meet the requirements to ensure that the AGV can stop in time in case of an emergency.
Protection devices: A chassis equipped with safety protection devices such as laser protection, mechanical collision prevention, emergency stop switches, and audible and visual alarms can effectively avoid collision accidents and protect the safety of personnel and equipment.
Fault diagnosis and protection: A chassis with self-detection, self-diagnosis, and self-protection capabilities can give an alarm in time and take corresponding measures when a fault occurs to prevent the fault from expanding.