The invention discloses an adjustable damping valve group, and belongs to the technical field of application of hydraulic machinery and motor vehicles. A large damper, a large-damping two-way flow control valve and a large-damping electric control stop valve in the damping valve group are sequentially connected to form a large-damping control oil circuit, and a middle damper, a middle-damping two-way flow control valve and a middle-damping electric control stop valve are sequentially connected to form a middle-damping control oil circuit; a small damper, a small-damping two-way flow control valve and a small-damping electric control stop valve are sequentially connected to form a small-damping control oil circuit, and the large damping control oil circuit, the medium damping control oil circuit and the small damping control oil circuit are connected in parallel; and the adjustment of six damping characteristics is realized through separate control over the on-off of the large-damping electric control stop valve, the medium-damping electric control stop valve and the small-damping electric control stop valve. According to the adjustable damping valve group, the purpose of multi-stage damping adjustment is achieved through hydraulic control, the limitation to flow by an solenoid valve is overcome, and the using requirements under various limiting conditions can be met.
本发明公开了一种阻尼可调减振阀组,属于液压机械和机动车应用技术领域。减振阀组中的大阻尼器、大阻尼二通流量控制阀和大阻尼电控截止阀顺序相连组成大阻尼控制油路,中阻尼器、中阻尼二通流量控制阀和中阻尼电控截止阀顺序相连组成中阻尼控制油路;小阻尼器、小阻尼二通流量控制阀和小阻尼电控截止阀顺序相连组成小阻尼控制油路,大阻尼控制油路、中阻尼控制油路和小阻尼控制油路三组并联,通过对大阻尼电控截止阀、中阻尼电控截止阀和小阻尼电控截止阀分别通断电控制实现六种阻尼特性的调节。本发明通过液压控制达到多级阻尼可调的目的,克服了电磁阀对流量的限制,能够满足各种极限工况的使用。
Adjustable damping valve group
阻尼可调减振阀组
2021-06-25
Patent
Electronic Resource
Chinese
Adjustable damping valve and vehicle hydraulic interconnection suspension system
European Patent Office | 2020
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