University of Science and Technology Beijing

Jing-jin Electric Technologies Co., Ltd.

Chinese Academy of Sciences

Institute of Geology and Geophysics

Jing-jin Electronic Technologies Co., Ltd.

Xi'an University of Architecture and Technology

Xueliang Wang

Ping Yu

Jianwen Li

Shengwen Qi

Bowen Zheng

Rong Zhu

Kai Dong

Guangsheng Wei

Shaoyan Hu

Wenhe Wu

Xin Wang

Yu Zou

Zhaobin Zhang

Songfeng Guo

Yun Bj Wang

Chao Feng

Xiaolin Huang

Haijun Zhao

Ning Liang

Lei Xue

Yongchao Li

Weifeng Li

Xiaokun Hou

Lihui Li

Zhendong Cui

Lina Ma

Zhengqiang Pei

Libo Jiang

Juanjuan Jiang

Yanjun Shang

Shuaihua Song

Fengjiao Tang

Zhicheng Guo

Baochen Han

Xuetao Wu

Tianping Tang

Ming Lv

Jinxuan Li

Qingze Hao

Ming Cai

Chouwu Qiu

Jingxin Zhao

Feng Xiong

Jianfeng Dong

Mengmeng Ban

Mengjie Zhang

Yidong Xiao

Disclosed is a mapping method of landslide threat range based on equivalent friction coefficient and trend analysis, which includes the following steps: obtaining physical parameters of a landslide, and obtaining a volume of the landslide according to an area in the physical parameters; selecting relevant parameters based on a rock type in the physical parameters, and obtaining the equivalent friction coefficient according to the relevant parameters and the volume; obtaining a landslide runout distance according to the equivalent friction coefficient, determining coordinate points of a hyperbola and a front edge boundary range according to the landslide runout distance, and performing a hyperbolic fitting on two side boundaries of the landslide according to the coordinate points to obtain a side boundary range; generating the landslide threat range based on the front edge boundary range and the side boundary range.

Mapping method of landslide threat range based on equivalent friction coefficient and trend analysis

An engine-and-electric-machine assembly, including an engine () and an electric machine (). The crankshaft () of the engine has an extension section (-) that extends to the exterior of the engine, and the rotor () of the electric machine is mounted to the extension section. The present disclosure improves the integration level of the engine-and-electric-machine assembly, and reduces the weight and volume of the engine-and-electric-machine assembly. A vehicle driving device including the engine-and-electric-machine assembly is also disclosed.

Engine and electric motor assembly, and vehicle driving device

The present disclosure provides a converter CO&#x2014;Omixed injection smelting method and a fire point area temperature dynamic control method. The method realizes online monitoring through an infrared temperature sensor installed inside an oxygen lance, dynamically adjusts the mixing ratio of COand Oand the height of the oxygen lance position according to the fire point area temperature changes and process requirements in different smelting stages, so that the secondary smelting system interlockingly and dynamically controls the fire point area temperature and the molten pool heating rate.

Converter CO2&#x2014;O2 mixed injection smelting method and method of dynamically controlling fire point area temperature

A variable angle loading testing machine is provided, which may include a bottom plate and a base fixedly connected to the bottom plate. A rock-sample accommodating cavity is formed in the base, and a rectangle-shaped sample is suitable for being placed into the rock-sample accommodating cavity. A side of the base is fixedly connected to two arc-shaped tension beams arranged in parallel, and a variable angle loading mechanism is slidably connected between the two arc-shaped tension beams. Through-holes are formed on the base, and an output end of the variable angle loading mechanism abuts against the rectangle-shaped sample through one of the through-holes. Loading and unloading of a stress with variable direction and magnitude under excavation disturbance can be simulated, which is of great significance for understanding mechanical behaviors of rock-soil mass under excavation disturbance.

Variable angle loading testing machine

The present disclosure relates to the technical field of clutches, and particularly relates to an electromagnetic jaw clutch. The electromagnetic jaw clutch includes a movable gear sleeve and a fixed gear sleeve that are in engagement transmission, a fixed armature is nested to an outer side of the fixed gear sleeve, the fixed armature and the fixed gear sleeve have a gap therebetween, and have a fixed position, a solenoid is provided inside the fixed armature, a movable armature is rotatably nested to an outer side of the movable gear sleeve, the movable armature is movable along with the movable gear sleeve in an axial direction, and when the solenoid is electrified, the solenoid attracts the movable armature to the fixed armature, to cause the movable gear sleeve and the fixed gear sleeve to be engaged. The present disclosure provides an electromagnetic clutching system that has a compact structure, has no auxiliary executing structure and can be conveniently operated, which can be applied to electrically driving systems of new-energy vehicles. The system controls the transmission and disconnection of power torque.

Electromagnetic jaw clutch

A transverse vehicle drive assembly, wherein the transverse vehicle drive assembly comprises a first power source and an automatic transmission (), a first intermediate shaft () is provided parallel to a first input shaft () of the automatic transmission (), a second intermediate shaft () is provided coaxial with the first input shaft (), a third intermediate shaft () is provided coaxial with the first intermediate shaft (), a first clutch () is provided between the first intermediate shaft () and the third intermediate shaft (), and a second clutch () is provided between the first input shaft () and the second intermediate shaft (). A first gear () on the first input shaft () and a second gear () on the first intermediate shaft () are in engaged transmission; and a third gear () on the second intermediate shaft () and a fourth gear () on the third intermediate shaft () are in engaged transmission, and the fourth gear () on the third intermediate shaft () is simultaneously in engaged transmission with a fifth gear () on a differential (). The drive assembly can realize transmission of two speed ratios, and the transmission modes are flexible. The longitudinal dimension and the lateral dimension of the drive assembly are reduced, to be adapted for vehicles of a compact structure. Because a small quantity of gears are used, the transmission structure is simplified.

Horizontal vehicle drive assembly

A clean and rapid smelting method in an electric arc furnace with full scrap steel, is suitable for smelting process of 30-300 t electric arc furnace with full scrap steel. In the smelting process of the electric arc furnace with full scrap steel, different kinds of mediums are injected by an injection lance which is installed inside refractory material of sidewall at the bottom of the electric arc furnace in different stages of smelting. Carburization is utilized in molten pool to accelerate melting down and improve carbon content of the molten pool at the stage of recarburizing and fluxing. A reaction in the molten pool is intensified at the stage of high efficiency dephosphorization and deep denitrogenation, to enhance efficient dephosphorization and deep denitrification of the reaction in the molten pool, thereby accelerating the smelting speed of the electric arc furnace with full scrap steel, improving effect of dephosphorization and denitrification.

Clean and rapid smelting method in an electric arc furnace with full scrap steel

Growing community of inventors

Beijing, China

Xueliang Wang