The utility model discloses a hydraulic press system with low cost and energy saving, relates to a press hydraulic system technical field, which comprises an oil tank, the high-pressure one-way variable pump, two position three way solenoid valve, solenoid valve, cylinder, side support main cylinder, liquid filling valve and low quantity of small displacement pump, high pressure pump one-way variable filter is connected with the oil tank through the one-way pressure variable pump oil outlet of the two position three way electromagnetic valve is communicated with the two position three way solenoid valve one way valve is connected with the auxiliary oil cylinder through the electromagnetic support, two position three way electromagnetic valve A is connected with the main cylinder pipe, a one-way valve is arranged between the first two position three way electromagnetic valve and the main oil cylinder, a pressure gauge is arranged between the main cylinder and the first one-way valve, an overflow valve is arranged between the first and two check valve three solenoid valve, main cylinder cavity. The overflow valve is connected with the oil tank, and the liquid filling valve is connected with a low pressure small displacement quantitative pump. The low cost energy-saving hydraulic press hydraulic system has low cost and low energy consumption.
【技术实现步骤摘要】
一种低成本节能的压力机液压系统
本技术属于压力机液压系统
,具体涉及一种低成本节能的压力机液压系统。
技术介绍
压力机是冲压时较为常用的一种生产设备,由于近年来冲压工件的结构越来越复杂,工件的冲压模具也越来越复杂,而且传统的压力机均采用双作用油缸运行,双作用油缸比单作用油缸的制造成本高,双作用油缸内的油封由于双作用力非常容易损坏且更换困难,维修成本高,同时,当压板下行动作时,由一台大功率电机带动一台大排量油泵才能正常运行,能耗高。
技术实现思路
本技术的目的在于克服现有技术的不足,本技术提供一种低成本节能的压力机液压系统,结构简单,使用方便,维护简单,成本低,能耗低。本技术解决其技术问题是采取以下技术方案实现的:一种低成本节能的压力机液压系统,其特征在于,包括油箱、高压单向变量泵、二位三通电磁换向阀、电磁支撑阀、副油缸、主油缸、充液阀和低压小排量定量泵,所述高压单向变量泵通过过滤器与所述油箱相连,所述高压单向变量泵的出油口通过油管与所述二位三通电磁换向阀相连通,所述二位三通电磁换向阀一路通过所述电磁支撑阀与所述副油缸连接,所述二位三通电磁换向阀另一路通过油管与所述主油缸连接,所述二位三通电磁换向阀与所述主油缸之间设有第一单向阀,所述主油缸与所述第一单向阀之间设有压力表,所述第一单向阀与所述二位三通电磁换向阀之间设有溢流阀,所述溢流阀的出油口与所述油箱相连,所述主油缸的上腔通过充液阀与所述油箱相连,所述充液阀与所述低压小排量定量泵相连,所述低压小排量定量泵的进油口与所述油箱连通。进一步的,所述充液阀为先导式充液阀。进一步的,所述溢流阀为先导式溢流阀。进一步的, ...
【技术保护点】
一种低成本节能的压力机液压系统,其特征在于,包括油箱、高压单向变量泵、二位三通电磁换向阀、电磁支撑阀、副油缸、主油缸、充液阀和低压小排量定量泵,所述高压单向变量泵通过过滤器与所述油箱相连,所述高压单向变量泵的出油口通过油管与所述二位三通电磁换向阀相连通,所述二位三通电磁换向阀一路通过所述电磁支撑阀与所述副油缸连接,所述二位三通电磁换向阀另一路通过油管与所述主油缸连接,所述二位三通电磁换向阀与所述主油缸之间设有第一单向阀,所述主油缸与所述第一单向阀之间设有压力表,所述第一单向阀与所述二位三通电磁换向阀之间设有溢流阀,所述溢流阀的出油口与所述油箱相连,所述主油缸的上腔通过充液阀与所述油箱相连,所述充液阀与所述低压小排量定量泵相连,所述低压小排量定量泵的进油口与所述油箱连通。
【技术特征摘要】
1.一种低成本节能的压力机液压系统,其特征在于,包括油箱、高压单向变量泵、二位三通电磁换向阀、电磁支撑阀、副油缸、主油缸、充液阀和低压小排量定量泵,所述高压单向变量泵通过过滤器与所述油箱相连,所述高压单向变量泵的出油口通过油管与所述二位三通电磁换向阀相连通,所述二位三通电磁换向阀一路通过所述电磁支撑阀与所述副油缸连接,所述二位三通电磁换向阀另一路通过油管与所述主油缸连接,所述二位三通电磁换向阀与所述主油缸之间设有第一单向阀,所述主油缸与所述第一单向阀之间设有压力表,所述第一单向阀与所述二位三通电磁换向阀之间设有溢流阀,所述溢流阀的出油口与所述油箱相连,所述主油缸的上腔通过充液阀与所述...
【专利技术属性】
技术研发人员:赵学明,
申请(专利权)人:天津市太行林业工具有限公司,
类型:新型
国别省市:天津,12
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