North Transportation holds four new product scientific and technological achievements appraisal meeting

At 9:00 on May 22nd, Z12DC self-propelled aerial work platform vehicle, EBZ160 type cantilever type roadheader, LB3000 type forced intermittent type asphalt mixture mixing equipment and X1000DB high-efficiency were held in the conference room on the 3rd floor of No. 2 Plant of the North Traffic. Economical road milling machines and other four kinds of new product scientific and technological achievements appraisal meeting.
The appraisal committee was chaired by Sun Yuansheng, President of Shenyang Machinery Industry Federation, Dean Li Shijie, Dean of School of Mechanical Engineering, Shenyang University of Technology, Li Lingxi, Dean of School of Automotive and Transportation, Shenyang University of Technology, Professor Han Qingkai, Professor of Northeastern University School of Mechanical Engineering, and other experts in the machinery industry. composition.
At the meeting, the director of the Institute for Aerial Vehicles Wang Fei, the director of the Institute of Coal Machinery Qi Yajun, the director of the Mixing Plant Research Institute Li Bo, the engineer of the milling machine research institute Wang Daxuan, and other technical leaders in charge made product work summary reports and techniques. Research reports, economic and social benefits analysis reports, etc. The members of the appraisal committee reviewed related technical documents such as user use reports, new search reports, inspection reports, and enterprise standards. They examined the production site and conducted inquiries.
After discussion, the identification opinions are as follows: The technical documents provided by Northern Transportation are complete, complete, correct, and unified, and are in compliance with relevant state regulations concerning the identification of scientific and technological achievements.
Z12DC self-propelled aerial work vehicle adopts international advanced CAN-BUS bus technology and full-intelligent computer control. It can run while working and has high working efficiency. It adopts a double four-bar linkage arm and telescopic arm hybrid type. The lever articulated arm adopts a unique single-cylinder pushing technology. The entire vehicle is subjected to reasonable force and compact structure, and the working platform is stable in the movement. It adopts a direct drive system with a battery of 48 volt DC motor, zero pollution, no pollution, low noise, simple maintenance, and compliance with green environmental protection. Claim.
The EBZ160 cantilever type roadheader adopts a helical cloth tooth design scheme with a cone-type cutting head, so that the cutting teeth are subjected to uniform force and pressure resistance, and the impact resistance is improved, and the service life of the cutting teeth is improved by 10%; the drive of the double-squirrel cage induction motor is Cutting head, non-contact pole-changing speed control, cutting torque can be increased by 20%-30%; hydraulic system uses double-piston variable pump, with proportional load-sensitive multi-way reversing valve, not only makes the whole operation more flexible Compared with the traditional hydraulic system, the energy consumption can be reduced by 20%-30%; in the cutting head drive system, the new domestic gear materials are used for the first time, the gear processing and heat treatment process are innovated, and the carrying capacity of the drive system of the cutting head is improved. Extended service life; the product has overvoltage, overcurrent, phase loss, short-circuit, overheat protection and leakage lockout, which improves product self-protection and operator safety; wireless remote control can be achieved according to the requirements of the boring operation. operation.
The LB3000 type forced intermittent asphalt mixture mixing equipment has effectively improved the mixing quality through optimization design and scientific control. At the same time, the asphalt filling time is shortened to within 8 seconds and the production capacity is improved; the overall machine control level is high. The product uses industrial control computers, PLCs, various sensors, and dual interface monitoring and operation technologies to ensure the high reliability and stability of the equipment. In the stone material measurement, the “drop compensation real-time compensation” technology is adopted, and it is at the leading domestic level in terms of measurement accuracy and real-time adjustment. The product has been added with a “pickup belt conveyor” and can be taken out during reversal. The equipment has a physical calibration function to improve the accuracy of the ingredients, more convenient for the user. This design is the first application in China; the product has taken insulation measures in many places; the frequency converter is used for the power system of blower, oil supply pump, etc., and the wind oil ratio is strictly controlled to improve the combustion efficiency; the backflush function is designed to increase dust removal. The service life of the bag and the efficiency of dust removal are improved; the modular design concept for the product is proposed in the overall design and implemented effectively. Make each part of the product relatively independent, manufacturing, debugging convenient, transportation, installation, maintenance easy.
The X1000DB high-efficiency and economical road milling machine is a new product independently developed by the company. The model is a 4×2 wheeled chassis driven by a wheel-side hydraulic motor and a rear-mounted milling device. The waste conveying device has a compact structure. , Applicability, ease of use and maintenance etc.; Driven by wheeled hydraulic motor, the conveyor is folded down, full hydraulic steering, strong maneuverability, fast transfer speed; using two-wheel drive system with hydraulic differential lock to solve The problem of slippage during the course of slope and muddy roads was optimized; the layout of the plate rack and its accessories was optimized, and the torsional and anti-vibration performances were effectively improved; after trial and error, reasonable angles and alignment patterns of the milling cutters were selected. Under the premise of ensuring the life, the milling depth is increased, and the milling speed is greatly improved; the fully-closed milling drum is used to effectively prevent the waste from splattering during operation; the conveying mechanism adopts a large-diameter rubber-knurled driving roller and a small-diameter banner. The structure of passive roller and concave roller, reduce the weight, increase the size of the outlet, avoiding the problem of deviation.
The appraisal committee unanimously held that the comprehensive technical indicators of the four new products of the Northern Transportation have reached the leading level of domestic similar products.
On the same day, Yin Jixin, executive vice president of the Group, Dong Ran, chief engineer of technology, and Liu Linshan, head of the project department, also participated in the appraisal meeting.