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A platform for research: civil engineering, architecture and urbanism
Hydraulic enhancement system and loader-digger
The invention belongs to the field of hydraulic control, and particularly relates to a hydraulic enhancement system and a backhoe loader, the hydraulic enhancement system comprises a pump, a main hydraulic system, an overflow valve and a control mechanism; the output end of the pump is connected with the input end of the main hydraulic system, the input end of the overflow valve and the input end of the control mechanism. The output end of the control mechanism is connected with the spring end of the overflow valve; the control mechanism is configured to control the system working pressure of the main hydraulic system through the initially set overflow pressure I of the overflow valve under the first working condition; the control mechanism is configured to guide hydraulic oil provided by the output end of the control mechanism to the spring end of the overflow valve under the second working condition, and the system working pressure of the main hydraulic system is controlled through overflow pressure II provided by the overflow valve. The overflow pressure II is greater than the overflow pressure I. According to the hydraulic enhancement system, the system pressure can be increased within a short time, so that the digging force is increased, and the reliability of parts of the whole machine is basically not influenced.
本发明属于液压控制领域，具体涉及一种液压增强系统及挖掘装载机，液压增强系统包括泵、主液压系统、溢流阀和控制机构；泵的输出端分别连接主液压系统的输入端、溢流阀的输入端和控制机构的输入端；控制机构的输出端连接溢流阀的弹簧端；控制机构被配置为在第一工况下，通过溢流阀的初始设定的溢流压力Ⅰ控制主液压系统的系统工作压力；控制机构被配置为在第二工况下，将控制机构的输出端提供的液压油引向溢流阀的弹簧端，通过溢流阀所提供的溢流压力Ⅱ控制主液压系统的系统工作压力；溢流压力Ⅱ大于溢流压力Ⅰ。该液压增强系统，能够短时间内提升系统压力，从而提升挖掘力，对整机零部件的可靠性基本不造成影响。
Hydraulic enhancement system and loader-digger
The invention belongs to the field of hydraulic control, and particularly relates to a hydraulic enhancement system and a backhoe loader, the hydraulic enhancement system comprises a pump, a main hydraulic system, an overflow valve and a control mechanism; the output end of the pump is connected with the input end of the main hydraulic system, the input end of the overflow valve and the input end of the control mechanism. The output end of the control mechanism is connected with the spring end of the overflow valve; the control mechanism is configured to control the system working pressure of the main hydraulic system through the initially set overflow pressure I of the overflow valve under the first working condition; the control mechanism is configured to guide hydraulic oil provided by the output end of the control mechanism to the spring end of the overflow valve under the second working condition, and the system working pressure of the main hydraulic system is controlled through overflow pressure II provided by the overflow valve. The overflow pressure II is greater than the overflow pressure I. According to the hydraulic enhancement system, the system pressure can be increased within a short time, so that the digging force is increased, and the reliability of parts of the whole machine is basically not influenced.
本发明属于液压控制领域，具体涉及一种液压增强系统及挖掘装载机，液压增强系统包括泵、主液压系统、溢流阀和控制机构；泵的输出端分别连接主液压系统的输入端、溢流阀的输入端和控制机构的输入端；控制机构的输出端连接溢流阀的弹簧端；控制机构被配置为在第一工况下，通过溢流阀的初始设定的溢流压力Ⅰ控制主液压系统的系统工作压力；控制机构被配置为在第二工况下，将控制机构的输出端提供的液压油引向溢流阀的弹簧端，通过溢流阀所提供的溢流压力Ⅱ控制主液压系统的系统工作压力；溢流压力Ⅱ大于溢流压力Ⅰ。该液压增强系统，能够短时间内提升系统压力，从而提升挖掘力，对整机零部件的可靠性基本不造成影响。
Hydraulic enhancement system and loader-digger
一种液压增强系统及挖掘装载机
LI ZHIGANG (author) / LIU YA (author) / WANG QIFEI (author) / HAN BIAO (author) / MA RUIMING (author) / DONG WENHUA (author) / CHEN GANG (author)
2023-03-03
Patent
Electronic Resource
Chinese
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