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A platform for research: civil engineering, architecture and urbanism
Road roller hydraulic vibration system and control method thereof
The invention discloses a hydraulic vibration system of a road roller and a control method of the hydraulic vibration system. The hydraulic vibration system comprises a hydraulic pump, a hydraulic motor and a valve bank, wherein the hydraulic pump and the hydraulic motor are connected in parallel to form a closed loop, a valve group is connected with the hydraulic motor in parallel, a port A, a port B, a port C and a port D are respectively arranged on the valve group, the port A and the port B of the valve group are connected with one end of the hydraulic motor, and the port C and the port Dof the valve group are connected with the other end of the hydraulic motor. The hydraulic vibration system aims to solve a problem of vibration stopping, a system in the prior art is large in impact,and a vibration exciter has a springback phenomenon. Under the force action of springs on the two sides, a valve element is located at the middle position through the valve set, pressure oil in the two cavities of the hydraulic motor is communicated through the middle position of the valve set, the function of stable braking is achieved through pressure oil communication, the technical effects ofrapid and stable vibration stopping and small impact during vibration stopping of the road roller are achieved, and reliability of the vibration exciter can be improved.
本发明公开了一种压路机液压振动系统及其控制方法，该液压振动系统包括液压泵、液压马达、阀组；所述液压泵与所述液压马达并联构成闭合回路；所述阀组与所述液压马达并联，所述阀组上分别设置有A口、B口、C口、D口，所述阀组的A口、B口与所述液压马达的一端相连，所述阀组的C口、D口与所述液压马达的另一端相连。本发明针对如何解决停振时，现有系统冲击大，不平稳，激振器存在回弹现象的技术缺陷，通过阀组在两边弹簧的力作用下，使阀芯处于中位，液压马达两腔的压力油经阀组的中位连通，通过压力油互通，实现平稳制动的功能，实现了压路机振动停振时，停振迅速、平稳，冲击小的技术效果，可提升激振器的可靠性。
Road roller hydraulic vibration system and control method thereof
The invention discloses a hydraulic vibration system of a road roller and a control method of the hydraulic vibration system. The hydraulic vibration system comprises a hydraulic pump, a hydraulic motor and a valve bank, wherein the hydraulic pump and the hydraulic motor are connected in parallel to form a closed loop, a valve group is connected with the hydraulic motor in parallel, a port A, a port B, a port C and a port D are respectively arranged on the valve group, the port A and the port B of the valve group are connected with one end of the hydraulic motor, and the port C and the port Dof the valve group are connected with the other end of the hydraulic motor. The hydraulic vibration system aims to solve a problem of vibration stopping, a system in the prior art is large in impact,and a vibration exciter has a springback phenomenon. Under the force action of springs on the two sides, a valve element is located at the middle position through the valve set, pressure oil in the two cavities of the hydraulic motor is communicated through the middle position of the valve set, the function of stable braking is achieved through pressure oil communication, the technical effects ofrapid and stable vibration stopping and small impact during vibration stopping of the road roller are achieved, and reliability of the vibration exciter can be improved.
本发明公开了一种压路机液压振动系统及其控制方法，该液压振动系统包括液压泵、液压马达、阀组；所述液压泵与所述液压马达并联构成闭合回路；所述阀组与所述液压马达并联，所述阀组上分别设置有A口、B口、C口、D口，所述阀组的A口、B口与所述液压马达的一端相连，所述阀组的C口、D口与所述液压马达的另一端相连。本发明针对如何解决停振时，现有系统冲击大，不平稳，激振器存在回弹现象的技术缺陷，通过阀组在两边弹簧的力作用下，使阀芯处于中位，液压马达两腔的压力油经阀组的中位连通，通过压力油互通，实现平稳制动的功能，实现了压路机振动停振时，停振迅速、平稳，冲击小的技术效果，可提升激振器的可靠性。
Road roller hydraulic vibration system and control method thereof
一种压路机液压振动系统及其控制方法
ZHANG SHUAI (author) / GAO LIANG (author) / KANG TAO (author) / LIN DONGBING (author) / LIU DONGDONG (author)
2020-06-19
Patent
Electronic Resource
Chinese
IPC:
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
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