Start-stop impact prevention balance valve of travel motor

• Main Authors: JING JUNQING, LEE DONG-SIL, CAO MAOLIN, WANG TING
• Format: Patent
• Language: Chinese; English
• Published: 03.05.2024
• 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 invention discloses a travel motor start-stop impact prevention balance valve, and relates to the technical field of hydraulic pressure, when the internal pressure of any second oil cavity is changed, a balance valve element is pushed to move towards the other side, and a one-way valve assembly and a throttling valve in the balance valve element on the other side are used for the backpressure effect; the first oil cavity and the third oil cavity are gently communicated or staggered, and the first oil cavity and the brake oil port are gently communicated or staggered. The one-way valve and the throttling valve 13 are arranged at the two ends of the balance valve element, the balance valve element acts gently according to the backpressure throttling principle formed by the one-way valve and the throttling valve when the balance valve element acts, hydraulic braking and mechanical braking starting and stopping time is properly prolonged, a motor is started and stopped stably, shaking of an excavator during s