Xcmg Excavator Machinery Co., Ltd

China University of Mining and Technology (CUMT)

Jiangsu Vocational Institute of Architectural Technology

Hong Zhang

Jiasheng Qin

Zong Li

Shengxia Zhang

Mingjun Liao

Jian Zhang

Yufeng Yang

Yong Wang

Kai Liu

Dong Wang

Zhidong Chen

Bingke Xiao

Yaxi Gong

Yuan Ji

Guohua Tian

Xinyu Liu

Xiang Ji

Xiangfeng Li

Wei Liu

A space-saving lengthwise and widthwise movable panel system capable of being fully opened belongs to the field of smart building technology and includes a lengthwise panel moving compartment, a panel storage space and a panel control module. The movable panel system can be used as a door and/or window system. All of the panels of the system can be entirely stored in the panel storage space and when storing all of the panels entirely in the panel storage space, the panel system is fully open to allow full lengthwise access to a space. The panel storage space may be located in a wall or outside the room to hide the stacked panels. By controlling the operation of the moving system, the panels are effectively connected to one another in an aligned manner and can move automatically, so the space-saving movable panel system is convenient to use, and space-saving.

Space-saving movable door/window system capable of being fully opened

Disclosed is an apparatus for improving excavating operation characteristic and grading operation characteristic of an excavator. The apparatus includes a solenoid valve group and a hydraulically controlled selector valve. An oil controlling output Aof the solenoid valve group is configured in series with oil controlling input aof the hydraulic control valve. An oil controlling output Aof the solenoid valve group is configured in series with a pilot control end XBaof a multi-port valve group. An oil return port Tof the solenoid valve group is connected to the hydraulic oil tank. An oil controlling output bof the hydraulically controlled selector valve is connected to a pilot control end XAbof the multiplexer valve group, and an oil return port Tof the hydraulically controlled selector valve is connected with the hydraulic oil tank. The apparatus improves operational efficiency and control comfortability.

Apparatus for improving excavating operation characteristic and grading operation characteristic of excavator

A method for improving excavating operation characteristic and grading operation characteristic of an excavator is disclosed. A hydraulically controlled selector valve is added in a boom confluence control circuit of a hydraulic excavator, and a solenoid valve group is added in the boom confluence control circuit and the bucket/stick confluence control circuit. A controller sends a control signal to switch the solenoid valve group between a disconnected mode and a connected mode. The controller may send out a signal to disconnect the solenoid valve group, to restore a valve spool to a middle position, to restore a boom lifting confluence circuit, and to disconnect a bucket/stick swinging confluence circuit to perform a standard excavation mode. The controller may send out a signal to connect the solenoid valve group to disconnect a boom lifting confluence circuit and to increase a bucket/stick swinging confluence circuit to achieve a grading operation mode.

Method for improving excavating operation characteristic and grading operation characteristic of excavator

Growing community of inventors

Xuzhou, China

Hong Zhang