The robot chassis is one of the core parts of the robot system, which not only carries the weight of the entire robot, but also provides the foundation for the robot to move and operate. This article will provide a detailed analysis of the main structure of the robot chassis and its selection and design points in different application scenarios.

Basic structure of robot chassis

The robot chassis usually consists of the following main parts:

Bottom plate: This is the main part of the chassis, used to install various components such as motors, sensors, and control systems. Materials are usually chosen to be lightweight and sturdy, such as aluminum alloy or carbon fiber.
Drive system: including motor, wheels, or tracks. The driving system determines the movement mode and speed of the robot. Common driving methods include wheeled, tracked, and walking.
Suspension system: used for shock absorption and providing smooth movement, especially on uneven terrain. The suspension system can be a simple spring structure or a complex active suspension system.
Battery and Power Management System: Provides power support to ensure long-term operation of the robot. The power management system is responsible for monitoring and regulating power output to extend battery life.
Sensor: Installed on the chassis for environmental perception and navigation. These sensors include LiDAR, infrared sensors, ultrasonic sensors, etc.

Characteristics of different types of robot chassis

The design of the robot chassis varies depending on the application scenario. The following are several common types of robot chassis and their characteristics:

Wheeled chassis:
Advantages: Simple structure, low cost, easy control and maintenance. Suitable for flat surfaces and indoor environments.
Disadvantage: Not suitable for rough terrain, tires may slip on soft ground.
Application scenarios: service robots, warehousing and logistics robots, indoor mobile robots.

Tracked chassis:
Advantages: Large grounding area, strong grip, and good adaptability. Capable of driving on uneven terrain and complex environments.
Disadvantages: Complex structure, high cost, and low mobility efficiency.
Application scenarios: military robots, detection robots, and engineering robots.

Pedestrian chassis:
Advantages: High flexibility, able to cross obstacles, and adapt to complex terrains.
Disadvantages: Complex technology, high cost, high energy consumption, and high control difficulty.
Application scenarios: adventure robots, rescue robots, biomimetic robots.

Suspended chassis:
Advantages: contactless movement, suitable for frictionless surfaces, and low noise.
Disadvantages: High technical difficulty and limited application scenarios.
Application scenarios: maglev trains, specific laboratory robots.

Development trend of robot chassis

With the advancement of technology, robot chassis is also constantly developing. The following are several main development trends:

Lightweight design: using new materials and structures to reduce the weight of the chassis, improve mobility efficiency and energy utilization.
Intelligent control: Integrating more sensors and intelligent control algorithms to enable robots to autonomously adapt to complex environments and tasks.
Multi functional integration: The chassis not only serves as the foundation for support and movement, but also integrates more functions such as self detection, automatic adjustment, and intelligent perception.
Standardization and modularization: Promote the standardization and modularization of chassis design, improve compatibility and interchangeability, and reduce research and development and maintenance costs.

At present, the high integration and lightweight characteristics of hub motors have led most robot chassis on the market to adopt this method for design and production, which perfectly meets the positioning needs of future market-oriented robots. Shenzhen Zhongling Technology Co., Ltd is currently a leader in the domestic hub motor industry. Its hub motors have already entered major industries around the world, and it will continue to explore more possibilities for motor applications in the future, and continuously deepen research and development to improve motors and controls, bringing more and better products to customers.