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352 results about "Light duty" patented technology

Monolithic molding method of light duty truck weldless axle case

ActiveCN103084460AGood formabilityReasonable distribution of wall thicknessWork in processTruck
The invention relates to a monolithic molding method of a light duty truck weldless axle case. A weldless steel round pipe is used, first, early hole shrinkage is conducted to two ends of the weldless steel round pipe, two times of hydro-bugling are conducted to the middle of the weldless steel round pipe; and then, later stage hole shrinkage is conducted to the two ends of the weldless steel round pipe to obtain a performing pipe blank which is in an axial symmetry shape or close to an axial symmetry shape. A die left pressure head and a die right pressure head are used on a four-way hydraulic machine for sealing the ends of the performing pipe blank, liquid is injected into the four-way hydraulic machine, an upper die block, a lower die block, a front die block and a rear die block are used for integral pressing and forming on the performing pipe blank from the upper direction, the lower direction, the front direction and the rear direction, an axle case semi-finished product with a hemispherical rear oil cap and an additional front cap is obtained, and an axle case product is obtained by cutting the additional front cap. According to the monolithic molding method, the manufactured axle case is weldless, high in strength and stiffness, and high in material utilization rate. Comparing the used technique with a traditional hydro-bugling technique, the liquid pressure needed in manufacturing process is lowered by more than 60%, and the tonnage of forming devices is lowered by more than 50%.
Owner:QINHUANGDAO TONGQIAO TECH CO LTD

Machine vision based technical inspection and detection system and method for railway trains

The invention discloses a machine vision based technical inspection and detection system and method for railway trains and belongs to the field of technical inspection on railway freight trains. According to the system, a light-duty rail, a portable moving device, a laser device, an optical image acquisition device and a wireless transmitting device are arranged outside a train inspection room; a wireless receiving device, a communication management server, a control server and a central server are arranged in the train inspection room. According to the system and the method, the automation and the intellectualization of technical inspection on the railway trains are achieved through controlling the portable moving device running on the light-duty rail, automatically acquiring image and video data on the bottom of a vehicle, carrying out data processing and outputting a current state of each component of the vehicle, an air testing test result and a repair processed result. According to the system and the method, manpower can be replaced for outdoor vehicle guarding operation, and the high quality, the accuracy and the reliability of train inspection can be guaranteed; the system and the method can adapt to various climatic conditions and natural environments and high-strength operation, so that the work efficiency of train inspection is increased.
Owner:BEIJING CTROWELL INFRARED TECHN
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