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Multi-way control valve for hydraulic excavator
The invention discloses a multi-way control valve for a hydraulic excavator. The multi-way control valve comprises a left valve body, a right valve body, a left travelling valve coupling, a right travelling valve coupling, a first movable arm valve coupling, a first bucket rod valve coupling, a bucket valve coupling, a rotary valve coupling, a front pump oil inlet, a rear pump oil inlet and an oilreturn opening, wherein the left travelling valve coupling and the right travelling valve coupling are arranged in the left valve body and the right valve body respectively, the left travelling valvecoupling, the right travelling valve coupling, the first movable arm valve coupling, the first bucket rod valve coupling, the bucket valve coupling and the rotary valve coupling achieve traveling, movable arm, bucket rod, bucket and rotary actions through control of a pilot oil way respectively, the left traveling valve coupling, the first movable arm valve coupling and the bucket valve couplingcommunicate through a first series oil way and a first parallel oil way respectively, the first series oil way is connected with the front pump oil inlet and the first parallel oil way correspondingly, the right travelling valve coupling, the first bucket rod valve coupling and the rotary valve coupling communicate through a second series oil way and a second parallel oil way respectively, and thesecond series oil way is connected with the rear pump oil inlet and the second parallel oil way correspondingly.
一种用于液压挖掘机的多路控制阀，包括左阀体、右阀体和设置在该左阀体和右阀体内的左行走阀联、右行走阀联、第一动臂阀联、第一斗杆阀联、铲斗阀联、回转阀联、前泵进油口、后泵进油口和回油口，该左行走阀联、右行走阀联、第一动臂阀联、第一斗杆阀联、铲斗阀联、回转阀联分别通过先导油路控制实现行走、动臂、斗杆、铲斗和回转动作，该左行走阀联、第一动臂阀联和该铲斗阀联之间分别通过第一串联油路和第一并联油路连通，该第一串联油路分别与该前泵进油口和该第一并联油路连接，该右行走阀联、第一斗杆阀联和该回转阀联之间分别通过第二串联油路和第二并联油路连通，该第二串联油路分别与该后泵进油口和该第二并联油路连接。
Multi-way control valve for hydraulic excavator
The invention discloses a multi-way control valve for a hydraulic excavator. The multi-way control valve comprises a left valve body, a right valve body, a left travelling valve coupling, a right travelling valve coupling, a first movable arm valve coupling, a first bucket rod valve coupling, a bucket valve coupling, a rotary valve coupling, a front pump oil inlet, a rear pump oil inlet and an oilreturn opening, wherein the left travelling valve coupling and the right travelling valve coupling are arranged in the left valve body and the right valve body respectively, the left travelling valvecoupling, the right travelling valve coupling, the first movable arm valve coupling, the first bucket rod valve coupling, the bucket valve coupling and the rotary valve coupling achieve traveling, movable arm, bucket rod, bucket and rotary actions through control of a pilot oil way respectively, the left traveling valve coupling, the first movable arm valve coupling and the bucket valve couplingcommunicate through a first series oil way and a first parallel oil way respectively, the first series oil way is connected with the front pump oil inlet and the first parallel oil way correspondingly, the right travelling valve coupling, the first bucket rod valve coupling and the rotary valve coupling communicate through a second series oil way and a second parallel oil way respectively, and thesecond series oil way is connected with the rear pump oil inlet and the second parallel oil way correspondingly.
一种用于液压挖掘机的多路控制阀，包括左阀体、右阀体和设置在该左阀体和右阀体内的左行走阀联、右行走阀联、第一动臂阀联、第一斗杆阀联、铲斗阀联、回转阀联、前泵进油口、后泵进油口和回油口，该左行走阀联、右行走阀联、第一动臂阀联、第一斗杆阀联、铲斗阀联、回转阀联分别通过先导油路控制实现行走、动臂、斗杆、铲斗和回转动作，该左行走阀联、第一动臂阀联和该铲斗阀联之间分别通过第一串联油路和第一并联油路连通，该第一串联油路分别与该前泵进油口和该第一并联油路连接，该右行走阀联、第一斗杆阀联和该回转阀联之间分别通过第二串联油路和第二并联油路连通，该第二串联油路分别与该后泵进油口和该第二并联油路连接。
Multi-way control valve for hydraulic excavator
一种用于液压挖掘机的多路控制阀
HUAN QINGXIANG (author) / LI HEYONG (author) / ZHANG HAIYANG (author) / GONG XIUJIANG (author) / LIU GUIFANG (author)
2020-08-07
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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