Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Control method for preventing clamping stagnation caused by rotation of engineering machinery
The invention discloses a control method for preventing clamping stagnation caused by the rotation of an engineering machinery. A control oil circuit controls a rotation direction through rotation pilot oil circuits, a rotation priority status is realized through a shuttle valve communicating between the left and right rotation pilot oil circuits, a pressure switch is arranged on the control oil circuit leading to a rotation oil tank valve from the shuttle valve and is used for detecting any pressure change of the left and right rotation pilot oil circuits, and by combining with the closing ordisconnecting time of the pressure switch, whether the rotation acts or not is judged, and the power of a main pump can be adjusted. The occurrence of the problem of the clamping stagnation caused bythe rotation of a hydraulic system due to rapid reduction of the rotation speed caused by the reason that a control system mistakenly identifies that the engineering machinery stops rotation action and quits the main pump power adjustment after the engineering machinery rotates to enter a constant-speed state is avoided.
本发明公开了一种避免工程机械回转卡滞的控制方法，控制油路通过回转先导油路控制回转方向，通过连通在左、右回转先导油路之间的梭阀实现回转优先状态，在梭阀通向回转油箱阀的控制油路上安装压力开关，用于检测左、右回转先导油路任一压力变化，结合压力开关的关闭或断开时间，判断回转是否动作，进行主泵功率调节。避免了工程机械回转进入匀速状态后，控制系统误以为工程机械已停止回转动作而退出主泵功率调节，导致回转速度迅速降低，造成液压系统回转卡滞问题。
Control method for preventing clamping stagnation caused by rotation of engineering machinery
The invention discloses a control method for preventing clamping stagnation caused by the rotation of an engineering machinery. A control oil circuit controls a rotation direction through rotation pilot oil circuits, a rotation priority status is realized through a shuttle valve communicating between the left and right rotation pilot oil circuits, a pressure switch is arranged on the control oil circuit leading to a rotation oil tank valve from the shuttle valve and is used for detecting any pressure change of the left and right rotation pilot oil circuits, and by combining with the closing ordisconnecting time of the pressure switch, whether the rotation acts or not is judged, and the power of a main pump can be adjusted. The occurrence of the problem of the clamping stagnation caused bythe rotation of a hydraulic system due to rapid reduction of the rotation speed caused by the reason that a control system mistakenly identifies that the engineering machinery stops rotation action and quits the main pump power adjustment after the engineering machinery rotates to enter a constant-speed state is avoided.
本发明公开了一种避免工程机械回转卡滞的控制方法，控制油路通过回转先导油路控制回转方向，通过连通在左、右回转先导油路之间的梭阀实现回转优先状态，在梭阀通向回转油箱阀的控制油路上安装压力开关，用于检测左、右回转先导油路任一压力变化，结合压力开关的关闭或断开时间，判断回转是否动作，进行主泵功率调节。避免了工程机械回转进入匀速状态后，控制系统误以为工程机械已停止回转动作而退出主泵功率调节，导致回转速度迅速降低，造成液压系统回转卡滞问题。
Control method for preventing clamping stagnation caused by rotation of engineering machinery
一种避免工程机械回转卡滞的控制方法
ZHAO YUDE (Autor:in) / GENG JIAWEN (Autor:in) / NIU DONGDONG (Autor:in) / WANG XUTONG (Autor:in) / WANG LU (Autor:in) / WANG QING (Autor:in) / LYU CHUANWEI (Autor:in) / WANG DING (Autor:in) / BIAN QINGRONG (Autor:in) / JIA LINGLING (Autor:in)
23.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02F
Baggern
,
DREDGING
Novel car window descending clamping stagnation preventing method
| Europäisches Patentamt | 2024
Engineering machinery pile clamping control method and wedge block type tubular pile clamping system
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
Control method and system for solving clamping stagnation of hidden door handle
| Europäisches Patentamt | 2024
Engineering machinery control method and engineering machinery
| Europäisches Patentamt | 2023