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How is the function of the tramcar bump/buffering function of the tramcar bump reflected/ What will happen if the connector is damaged and not replaced in time?
Views: 0 Author: Site Editor Publish Time: 2022-09-26 Origin: Site
Considering the most unfavorable situation, it is assumed that the front and rear heads of several continuous tramcars are all damaged and fall off. At this time, when the tramcars are braked and stopped, a rigid collision between the head seats will occur. Since the bumper seat has no elasticity and the coefficient of restitution of the collision is large, the collision force is large. The kinetic energy of the collision is absorbed by the deformation of the whole tramcar, that is, a large stress is generated at the axle clamp of the frame, and the parts outside the axle clamp are subject to a large downward bending moment. However, because the frame is restrained by the wagon box of the mine car, the frame will not bend down significantly under the impact force, so this bending moment acts on the contact part between the headblock and the longitudinal beam head. The frequent collision of the mine car, the frame end will be frequently affected by this bending moment. The greater the impact force, the greater the deformation, the greater the bending moment, and the greater the frequent action of the larger bending moment, It will cause fatigue and fracture at the joint between the connector seat and the frame longitudinal beam. This is consistent with the actual situation that the connection between the headblock and the longitudinal beam of the frame was broken. According to the overall stress of the frame, the stress of the longitudinal beam is greater than that of the connector seat. This is also consistent with the situation that the frame often deforms at the axle clamp and causes the frame to fail in production practice.
It can be seen that the buffering effect of the contact is very important for the tramcar. Therefore, once the contact is damaged during the use of the tramcar, it must be replaced in time to ensure that the tramcar is protected by reliable buffering.
On October 30, Li Zhenbo, General Manager of Information Technology at Shandong China Coal Group and General Manager of Zhongyun Group, was invited to deliver a keynote presentation at an activity organized by the Teaching and Research Group of the Shandong Province Technical and Vocational Schools Admissions and Employment (Industry-Education Integration) Center. The event brought together 23 technical and vocational schools across the province and focused on innovative integration of artificial intelligence with technical and vocational education, sharing practical achievements from the front lines of industry and jointly exploring new approaches to cultivating versatile digital-skills professionals through school-enterprise collaboration.
Recently, the Zhongmei Zhiren AI system, independently developed by the Intelligent Research Institute of Shandong China Coal Group, has continued to evolve and improve. Drawing on core technologies including large language models (LLMs), retrieval-augmented generation (RAG), AI agent workflow orchestration, multimodal vision, and audio and video generation, it is building a dedicated end-to-end AI platform for China’s industrial and mining supplies sector. The platform uses independently controllable AI technology to support the digital transformation of domestic and international trade and foster new quality productive forces.
Recently, three sets of software independently developed by Shandong China Coal Industry & Mining Supplies Group Co., Ltd. have successfully passed the review of the National Copyright Administration and obtained the Computer Software Copyright Registration Certificates. The three certified achievements are all built-in agent modules of the China Coal Zhiren AI System, namely: China Coal Zhiqing Image Management Tool V1.0, China Coal Construction Machinery Foreign Trade Independent Website System V1.0, and China Coal Mining Machinery Foreign Trade Independent Website System V1.0. This marks the continuous expansion of the ecological layout of the China Coal Zhiren AI System and the further consolidation of self-developed technical barriers.
Shandong China Coal Mining Support Equipment Co., Ltd. was founded in the 1990s with more than 1100 employees. It now has 53 professional companies, 3 Hong Kong companies, 1 British Cayman company and 1 American company. It is a large diversified industrial group integrating intelligent equipment manufacturing, e-commerce, software research and development and intelligent logistics, which is cultivated and supported by the Ministry of industry and information technology, the Ministry of Commerce, the development and Reform Commission, Shandong Province and Jining City.
