The important data for assessing the reliability indicators of garbage truck engines is the average time between failures. Most foreign engines exceed 10,000 hours, while domestic engines are far below this figure. It is no wonder that important customers are willing to spend several times more to buy imported engines, and there are doubts about domestically produced engines. The reliability of domestic engines has reached a point where it is impossible to solve them.
How to solve? The reliability cannot be imitated. Even if there are drawings and process documents, others cannot be reliable. Therefore, improving reliability depends on the company's own lean management.
The reliability of garbage truck engines relates to the design, manufacture, assembly, supply, and after-sales service departments of the main engine plant; suppliers and cooperators involved in accessories and outsourcing; and operators involved in various types of engine users. , maintenance personnel and equipment management departments. This collaborative environment is not only coordinated by various departments within the host plant, but also coordinated by the host plant and a number of suppliers and suppliers of external components, as well as collaboration between the host plant and a number of typical users.
With the rapid development of the automotive industry, the market needs both an engine and a variety of vehicles to match, and also requires a vehicle to match a variety of engines. Must combine the domestic engine function and the operating environment as well as the specific problems that the reliability exists, studies the engine high-efficient reliability technology oriented to the coordinated environment, provides the technical support for the effective promotion garbage truck engine reliability level.
In order to improve the reliability of the garbage truck engine, it is necessary to develop and apply emerging high-efficiency reliability technologies to solve the new problems of the reliability of the digital engine. However, in any case, to ensure the reliability of products, we must do more reliability tests.
The reliability test technology research includes the development of early fault excitation devices, the development of complete machine and functional component test platforms, the testing of stress and deformation of complete machines and functional components, the study of engine operating status and fault information collection and processing technologies, and the technology of engine accuracy maintenance testing Research etc.
The engine of an automobile consists of hundreds or thousands of parts. Whether it can ensure good performance of the engine and achieve reliable operation depends to a large extent on the final process of the garbage truck engine manufacturing process—assembly. The assembly process has a decisive influence on the product quality. Therefore, in order to improve the assembly quality and production efficiency, we must analyze the composition of the engine assembly process, such as the assembly line research, the preparation of the assembly process specification.
Due to the large volume of production, it is generally a production line running process, the process is mature, and the consistency of the required components is good. The assembly part of the garbage truck engine needs to be assembled in accordance with certain procedures with different equipment. Due to the high work intensity of automotive engines and high machining accuracy, the requirements for assembly technology are also more stringent. Prior to assembly, carefully handle the parts and assemblies that have been selected and carefully clean, blow dry, and clean to ensure cleanliness. Check all parts without burrs or scratches and keep intact. Do a good job in the cleaning of tools, equipment, and work sites. Tables and machine tools should be placed neatly. In particular, carefully inspect and clean the oil passages on the cylinder block and the crankshaft, and blow them off with compressed air. Otherwise, due to the negligence of the cleaning work, rework and even serious consequences will result.
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