非公路自卸车液压制动系统及非公路自卸车
By introducing a dual-circuit redundant design and an electromagnetic directional valve into the hydraulic braking system of off-highway dump trucks, the problems of brake air circuit icing and parking brake valve failure in high-altitude and cold regions have been solved, enabling effective braking in high-altitude and cold regions and when the parking brake valve fails, thus improving the safety and reliability of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI TONLY HEAVY IND
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-17
AI Technical Summary
The existing hydraulic braking system of off-highway dump trucks is prone to affecting braking performance in cold regions due to icing of the brake air circuit, and it cannot function when the parking brake valve fails, resulting in insufficient system safety and reliability.
A hydraulic braking system for off-highway dump trucks was designed, employing a dual-circuit redundant design, including a parking brake mechanism and an electromagnetic directional valve. Parking braking is achieved through oil return, ensuring normal operation even when the main parking brake valve fails. An independent braking circuit is formed through an accumulator and various valve body structures to improve system reliability.
It improves the safety and reliability of the hydraulic braking system, ensuring effective braking even in cold regions and when the parking brake valve fails, thus enhancing the driving safety and reliability of off-highway dump trucks.
Smart Images
Figure CN224511095U_ABST
Abstract
Citation Information
Patent Citations
Hydraulic brake system for road-rail dual-purpose vehicle
CN111775918B