Novel integral multi-way valve for excavator

• Main Authors: LIU ZHAOQUAN, ZHAO GUANGMING, ZHANG WEI
• Format: Patent
• Language: Chinese; English
• Published: 20.09.2019
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; DREDGING; FIXED CONSTRUCTIONS; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; FOUNDATIONS; HEATING; HYDRAULIC ENGINEERING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SOIL SHIFTING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The utility model discloses a novel integral multi-way valve for an excavator. The multi-way valve body is provided with an oil inlet P1, an oil inlet P2, an oil return opening R1 and an oil return opening R2, and the multi-way valve body comprises a right valve body and a left valve body. A right walking joint, a rotary joint, a movable arm joint, a standby joint, a bucket rod joint I, a first bypass cut-off valve and a second bypass cut-off valve are sequentially arranged in the right valve body, and valve elements are arranged in the right walking joint, the rotary joint, the movable arm joint II, the standby joint, the bucket rod joint I, the first bypass cut-off valve and the second bypass cut-off valve; a linear walking joint, a left walking joint, a first movable arm joint, a bucket joint and a second bucket rod joint are sequentially arranged in the left valve body, and valve elements are arranged in the linear walking joint, the left walking joint, the first movable arm joint, the bucket joint and th