In early summer, Hubei Jincheng Chengxin Daye Park is full of greenery and flowers are in full bloom. Hubei KingAnt's equipment manufacturing sector is booming. Faced with the impact of the epidemic and the external environment on production, Hubei KingAnt's team has overcome the adverse effects while growing in innovation, innovating in growth, and actively tapping potential from within. , vigorously carried out equipment revitalization, transformation, upgrading and optimization work, and successively completed the transformation and upgrading of the 3m³ scraper power and ZFY1.2 raise drilling rig chassis.

        Scraper electromechanical conversion to oil development

        In early March, the overhaul shop changed the power system of a 3m³ scraper from electric to oil-driven, injecting new vitality into this scraper that had been idle for many years.

        The power system of this 3m³ scraper is electric. During underground construction, it needs to drag a long, heavy cable. It has certain requirements for the construction environment, and the power supply also has great limitations. The safety risks brought about have also increased, and the activity space is limited by the construction environment, power supply, and cable length. In recent years, with the development of the mining industry revolution 4.0, the functions of this electric scraper cannot be fully utilized. To this end, the company team decided to replace and transform its power system and upgrade and optimize its functions. Under the guidance of General Manager Zhu Weihao, each team in the overhaul workshop actively discussed and formulated a transformation plan for the scraper. : The first is to change its power system from electric to oil-driven; the second is to optimize the cab height, pedals, field of view, vehicle lighting and other aspects from the perspective of humanized operation.

        In order to ensure the transformation effect, the overhaul plant mobilized experienced masters in trackless equipment maintenance to form a team of three people to implement the plan. The engine, torque converter, operating console, fuel tank, radiator and other component systems are very different from the oil, and require constant modification and debugging during operation. First, the high-voltage electronic control must be replaced with a low-voltage integrated controller and related wiring harnesses, the electric supply system must be removed, and then the fuel supply system must be installed. The cooling system of the oil truck is very important. It must be changed from the original single electric to water, wind, and hydraulic , transmission four-in-one power, the transformation required is not only a heavy workload, but also a great test to the professional and technical level of the implementers. It is necessary to combine the structure and working principles of each system for assembly and debugging to ensure stable working performance of the radiator. After careful verification, the upgrade of the scraper motor and oil was finally completed.

       After various subsequent humanized transformations, the operability, safety and work efficiency of the scraper have been greatly improved. Since the modification and upgrade of this scraper, it has conducted more than 40 hours of heavy-duty shoveling operations in the scraper test well of Hubei Jincheng Chengxin Park. After testing, it can achieve all shoveling operation functions of the same type of scraper with the same configuration. This The scraper will be incorporated into the Hubei Jinchengcheng Equipment Team as a backup model of the 3-cubic internal combustion scraper.

       Raise drilling rig modification adds fighting spirit

       The Raise Company's ZFY1.2 Raise Drilling Rig is small in size and does not have a transition chassis to enable autonomous walking, resulting in high labor intensity for operators and inconvenient transportation. In order to solve the resulting problems such as low work efficiency and an increase in uncontrollable safety factors, we After deliberation and discussion by the company's well raising professionals, and after submitting it to the company for approval, it was decided to change the chassis of the drilling rig to a crawler self-propelled type to achieve autonomous walking and reduce the number of people on the machine.

        The production technology department of Jinchengcheng (Hubei) Intelligent Company immediately organized the start of work after receiving the task. The main engine of this raise drilling rig weighs more than 6 tons. To achieve crawler walking and flip the main engine into position, not only the power system but also the stability of the entire machine when the main engine is turned over must be considered. In the absence of similar cases for reference, the staff of the production technology department comprehensively considered and carefully considered every aspect from chassis load-bearing calculation to solidworks 3D modeling and design, from hydraulic system, power system, electrical system selection to design and production. , and made a comprehensive and technically feasible transformation and upgrading plan.

        The crawler chassis, hydraulic piston pump, diesel engine and other main accessories of this drilling rig were selected from an idle crawler type slag scraper. The large parts of the oil cylinder were selected from the assembly parts library of the company. They have stable performance and are in good condition. Good parts usage. When modifying the crawler chassis, an outrigger cylinder load-bearing beam is added to the chassis base so that it can bear the weight of the drilling rig. Due to the limitations of the cylinder stroke, the height and width of the working face tunnel, the positioning of the turning point and the cylinder is not only a test of technology but also a summary of experience. The staff repeatedly deliberated and pondered on site, read a lot of relevant theoretical documents, and based on the past Based on the experience of using the drilling rig, General Manager Zhu Weihao personally guided the software modeling, simulated the turning trajectory and reversal angle, and finally determined the turning point and the installation position of the oil cylinder. At the moment when the on-site experiment turned over successfully, everyone wrinkled up. His brows finally relaxed.

        Immediately afterwards came the intensive installation of the hydraulic system, power system, and wireless control system. The installation, testing, and cooperation of each system were carried out. The technicians followed the scene closely and gave careful guidance, and the assembly personnel operated carefully and installed carefully. Finally, the transformation of this raise drilling rig from a rail transport chassis to a crawler self-propelled chassis was successfully completed. The modified drilling rig was tested for its climbing ability and braking system safety performance on the test ramp of the Daye base. It was able to achieve the design results and ensure the equipment transition requirements.

        The transformation of these two equipments was a test of the technical level of Hubei Jincheng Chengxin's overhaul, maintenance and design. They broke through the previous thinking stereotypes, overcame many technical problems, and brought new ideas to the later equipment manufacturing. Inject new vitality into inventory materials and bring new functions to idle equipment. Let Jincheng Chengxin (Hubei) be more determined in the development path of intelligent equipment manufacturing and have more high morale.