The invention belongs to the technical field of agricultural machinery, and discloses a brake valve block assembly, a brake control method, a brake system and the agricultural machinery, when the agricultural machinery needs to be braked, a first reversing valve of the brake valve block assembly can control a first piston to move so as to switch the working state of a clutch, and the brake valve block assembly can control the first piston to move. Meanwhile, connection between the hydraulic oil source and the multi-way valve assembly can be cut off through the first control valve, so that the hydraulic oil source only supplies oil to the braking system, oil supply of the braking system is guaranteed, and after braking is completed, the hydraulic oil source can be switched off through the multi-way valve assembly. When the brake valve block assembly is used for braking, the first control valve is controlled to enable the hydraulic oil source to only supply oil to a brake system, and the problem that the brake force is reduced due to insufficient brake oil pressure is avoided. The input end of the second control valve can be controlled to be connected with the output end of the second control valve, so that the oil flows back to the oil tank, and the brake valve block assembly can control the first control valve to enable the hydraulic oil source to only supply oil to the brake system.
本发明属于农用机械技术领域,公开了制动阀块总成、制动控制方法、制动系统及农用机械,在农用机械需要进行制动时,可通过该制动阀块总成的第一换向阀控制第一活塞运动,以切换离合器的工作状态,并通过第二换向阀控制第二活塞运动,以进行制动,同时,可通过第一控制阀切断液压油源与多路阀组件之间的连接,以使液压油源仅为制动系统供油,保证制动系统的油液供应,在完成制动后,可控制第二控制阀使第二控制阀输入端与第二控制阀输出端连接,以使油液回流至油箱,该制动阀块总成能够在进行制动时,通过控制第一控制阀使液压油源仅为制动系统供油,避免出现由于制动油压不足而导致制动力下降的问题。
Brake valve block assembly, brake control method, brake system and agricultural machine
制动阀块总成、制动控制方法、制动系统及农用机械
2025-01-21
Patent
Electronic Resource
Chinese
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |