Patent ID: 11958718
Assignee: GUIYANG PLATEAU MINING MACHINERY COMPANY LIMITED
Field: Handling (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 0:
1. A multi-channel impact-resistant intelligent-constant-deceleration hydraulic braking system, comprising a braking circuit formed by a constant-deceleration hydraulic system, a constant-deceleration electrical closed-loop control system, and a detection and feedback apparatus, wherein
the constant-deceleration hydraulic system is provided with N+1 oil return channels, wherein N is a positive integer greater than or equal to 3, the oil return channels are disposed in parallel to form the braking circuits, and the oil return channel comprises a backup oil source, an electro-hydraulic signal conversion and amplification component, an operating mode switching apparatus, and an execution component that are sequentially connected;
the oil return channels comprise one backup channel and N working channels;
the backup oil source is configured to supply hydraulic oil to the constant-deceleration hydraulic system in a situation of safety braking and a power outage;
the electro-hydraulic signal conversion and amplification component is configured to output hydraulic oil with accordingly changing flow rates and directions in response to an input continuously-changing electrical signal instruction;
the constant-deceleration electrical closed-loop control system is configured to: receive a speed feedback signal, compare the speed feedback signal with a built-in set speed signal, and send a control instruction to the electro-hydraulic signal conversion and amplification component according to a comparison result to form a closed-loop speed control mechanism via the execution component; and
the detection and feedback apparatus is configured to: collect the speed feedback signal and feed back the speed feedback signal to the constant-deceleration electrical closed-loop control system of each oil return channel.