A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
System for increasing rotation speed of excavator during loading and control method
The invention discloses a system for increasing the rotation speed of an excavator during loading. The system comprises a first pump, a second pump, a movable arm oil cylinder, a rotation motor, a second movable arm valve element and a rotation valve element. High-pressure oil output by the first pump enters a rodless cavity of the movable arm oil cylinder through a control port of a first movable arm valve element. One path of high pressure output by the second pump enters the rotation motor through a control port of the rotation valve element. The other path enters the rodless cavity of the movable arm oil cylinder through a control port of the second movable arm valve element. The second movable arm valve element and the control port of the rodless cavity of the movable arm oil cylinder are controlled by a proportional electromagnetic valve. The rotation pressure is not completely determined by the pressure of a movable arm any more, and a lifting space is provided. Under the operation condition that the movable arm lifting requirement is not high, the rotation speed can be increased, and the operation efficiency is improved.
本发明公开了一种提高挖掘机装车时回转速度的系统，包括泵一、泵二、动臂油缸、回转马达、动臂阀芯二和回转阀芯；所述泵一输出的高压油通过动臂阀芯一的控制口进入动臂油缸的无杆腔；所述泵二输出的高压有一路经过回转阀芯的控制口进入回转马达；另一路通过动臂阀芯二的控制口进入动臂油缸的无杆腔；所述动臂阀芯二与动臂油缸无杆腔的控制口由比例电磁阀控制；本发明回转压力不再完全由动臂压力决定，具有提升的空间；可以在动臂提升要求不高的作业情况下，提高回转速度，提高作业效率。
System for increasing rotation speed of excavator during loading and control method
The invention discloses a system for increasing the rotation speed of an excavator during loading. The system comprises a first pump, a second pump, a movable arm oil cylinder, a rotation motor, a second movable arm valve element and a rotation valve element. High-pressure oil output by the first pump enters a rodless cavity of the movable arm oil cylinder through a control port of a first movable arm valve element. One path of high pressure output by the second pump enters the rotation motor through a control port of the rotation valve element. The other path enters the rodless cavity of the movable arm oil cylinder through a control port of the second movable arm valve element. The second movable arm valve element and the control port of the rodless cavity of the movable arm oil cylinder are controlled by a proportional electromagnetic valve. The rotation pressure is not completely determined by the pressure of a movable arm any more, and a lifting space is provided. Under the operation condition that the movable arm lifting requirement is not high, the rotation speed can be increased, and the operation efficiency is improved.
本发明公开了一种提高挖掘机装车时回转速度的系统，包括泵一、泵二、动臂油缸、回转马达、动臂阀芯二和回转阀芯；所述泵一输出的高压油通过动臂阀芯一的控制口进入动臂油缸的无杆腔；所述泵二输出的高压有一路经过回转阀芯的控制口进入回转马达；另一路通过动臂阀芯二的控制口进入动臂油缸的无杆腔；所述动臂阀芯二与动臂油缸无杆腔的控制口由比例电磁阀控制；本发明回转压力不再完全由动臂压力决定，具有提升的空间；可以在动臂提升要求不高的作业情况下，提高回转速度，提高作业效率。
System for increasing rotation speed of excavator during loading and control method
一种提高挖掘机装车时回转速度的系统及控制方法
WANG XUTONG (author) / GENG JIAWEN (author) / NIU DONGDONG (author) / WANG LU (author) / LIU YONGXIN (author) / LYU CHUANWEI (author) / XIA YAN (author) / FAN DANGPING (author) / LI CHAO (author)
2021-04-20
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
Excavator rotation control method, excavator rotation system and excavator
| European Patent Office | 2020
Excavator rotation control method and system and excavator
| European Patent Office | 2024
SPEED REDUCER, ROTATION DRIVE SYSTEM AND HYDRAULIC EXCAVATOR
| European Patent Office | 2019
Electric rotation accurate parking auxiliary system of loading rotation mechanism of excavator
| European Patent Office | 2023