A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Device for power switching of hydraulic pump for wheeled excavator
The invention relates to a device for power switching of a hydraulic pump for a wheeled excavator, and belongs to the technical field of hydraulic pumps for wheel type hydraulic excavators. The hydraulic pump power switching device comprises a nut, a clamp spring and an ejector rod. One end of the nut is connected with the hydraulic pump control valve body, and the other end of the nut is providedwith a thread connected with a whole machine oil guide opening. The ejector rod capable of moving back and forth is arranged at one end, connected with the hydraulic pump control valve body. The clamp spring used for limiting the ejector rod is arranged in the nut. The power of the hydraulic pump can be switched through the back-and-forth moving of the ejector rod. The problems that an existing wheel-type excavator hydraulic plunger pump is fixed and singular in constant power design value, and comprehensive requirements of users for efficiency and energy consumption cannot be met are solved.By means of optimizing the structure of the hydraulic plunger pump control unit, specific needs of the customers are met. Two constant-power design values can be realized by the hydraulic pump to meet comprehensive requirements of the users for efficiency and energy consumption. The device is simple in structure and convenient and fast to use.
本发明涉及一种实现轮式挖掘机液压泵功率切换的装置，属于轮式液压挖掘机液压泵技术领域；液压泵功率切换装置包括螺帽、卡簧和顶杆；螺帽一端连接液压泵控制阀阀体，螺帽另一端设有连接整机导油口的螺纹；螺帽连接液压泵控制阀阀体的一端设有可前后移动的顶杆；螺帽中设有用于顶杆限位的卡簧。通过顶杆的前后移动实现液压泵功率切换，解决了目前轮式挖掘机用液压柱塞泵恒功率设计值固定单一，无法满足用户在效率和能耗上综合需求的问题；通过优化液压柱塞泵控制单元的结构，满足用户定制需求，所提供的液压泵可以实现两种不同的恒功率设计值，以满足用户提出的效率和能耗综合需求的要求；且本发明结构简单，使用便捷。
Device for power switching of hydraulic pump for wheeled excavator
The invention relates to a device for power switching of a hydraulic pump for a wheeled excavator, and belongs to the technical field of hydraulic pumps for wheel type hydraulic excavators. The hydraulic pump power switching device comprises a nut, a clamp spring and an ejector rod. One end of the nut is connected with the hydraulic pump control valve body, and the other end of the nut is providedwith a thread connected with a whole machine oil guide opening. The ejector rod capable of moving back and forth is arranged at one end, connected with the hydraulic pump control valve body. The clamp spring used for limiting the ejector rod is arranged in the nut. The power of the hydraulic pump can be switched through the back-and-forth moving of the ejector rod. The problems that an existing wheel-type excavator hydraulic plunger pump is fixed and singular in constant power design value, and comprehensive requirements of users for efficiency and energy consumption cannot be met are solved.By means of optimizing the structure of the hydraulic plunger pump control unit, specific needs of the customers are met. Two constant-power design values can be realized by the hydraulic pump to meet comprehensive requirements of the users for efficiency and energy consumption. The device is simple in structure and convenient and fast to use.
本发明涉及一种实现轮式挖掘机液压泵功率切换的装置，属于轮式液压挖掘机液压泵技术领域；液压泵功率切换装置包括螺帽、卡簧和顶杆；螺帽一端连接液压泵控制阀阀体，螺帽另一端设有连接整机导油口的螺纹；螺帽连接液压泵控制阀阀体的一端设有可前后移动的顶杆；螺帽中设有用于顶杆限位的卡簧。通过顶杆的前后移动实现液压泵功率切换，解决了目前轮式挖掘机用液压柱塞泵恒功率设计值固定单一，无法满足用户在效率和能耗上综合需求的问题；通过优化液压柱塞泵控制单元的结构，满足用户定制需求，所提供的液压泵可以实现两种不同的恒功率设计值，以满足用户提出的效率和能耗综合需求的要求；且本发明结构简单，使用便捷。
Device for power switching of hydraulic pump for wheeled excavator
一种实现轮式挖掘机液压泵功率切换的装置
ZHENG KEWEN (author) / MA ZONGYU (author) / QIAN XU (author) / YU HONGBO (author) / ZHENG JINKE (author)
2020-06-12
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING