The brake systems of road rollers are mainly divided into three categories: service brake systems, parking brake systems, and emergency brake systems. These three types complement each other in function, jointly ensuring safety during operation and driving, and each type is designed for different braking needs.
This is the most commonly used brake system for road rollers. It is used to actively decelerate or stop the roller during driving or operation, and acts directly on the driving wheels.
Core Function: Controls the vehicle speed during normal driving, enables smooth parking, or provides temporary braking when adjusting the position during operation.
Common Form: Mostly adopts hydraulic braking or pneumatic braking, triggered by stepping on the brake pedal. The braking response is rapid, and the braking force can be adjusted through the intensity of pedal pressure.
Applicable Scenarios: Road driving when the roller is transferring between construction sites, and deceleration or parking when adjusting the rolling route during operation.
This system is used for long-term parking after the road roller stops, preventing the vehicle from moving by itself on slopes or uneven sites. It belongs to a "static braking" system.
Core Function: Maintains the vehicle in a stationary state after the engine is turned off to ensure parking safety. It usually works independently of the service brake system.
Common Form: Mostly mechanical braking, driven by a handbrake (control lever or pedal). It uses steel cables or pull rods to drive brake components to lock the wheels or transmission system; some large-scale road rollers are also equipped with hydraulic auxiliary parking brakes.
Applicable Scenarios: Temporary stops during intervals of roller operation, overnight parking, temporary parking on slopes, etc. The parking brake must be applied to prevent the vehicle from rolling.
This is a backup brake system for safety assurance, activated when the service brake fails to avoid accidents. It is designed for "fault emergency" situations.
Core Function: When the service brake fails (such as hydraulic leakage, insufficient air pressure), it quickly provides braking force to bring the vehicle to an emergency stop.
Common Form: It usually shares some components with the parking brake system (such as the mechanical braking mechanism) or is triggered through an independent hydraulic/pneumatic circuit. Some models can achieve emergency parking by cutting off power and combining braking.
Applicable Scenarios: Extreme situations where the service brake suddenly fails. It is a key backup guarantee in the safety system of road rollers.
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