As an important part of agricultural machinery, the assembly and connection technology of copper forgings has an important impact on the performance and reliability of agricultural machinery. Based on the research of assembly and connection technology of agricultural copper forgings, this paper summarizes the commonly used assembly methods and connection technology, and probes into their advantages and disadvantages and application range. This research is helpful to improve the assembly accuracy and connection reliability of copper forgings of agricultural machinery, and provide technical support for the design and manufacture of agricultural machinery.
First, agricultural machinery plays a vital role in farm operations, among which agricultural machinery copper forging as one of the key parts, the reliability of its assembly and connection technology directly affects the safety, work efficiency and service life of agricultural machinery. Therefore, the research on the assembly and connection technology of copper forgings of agricultural machinery has important theoretical significance and practical application value.
- Assembly method
Mechanical assembly: The use of mechanical forces and assembly tools to assemble copper forgings with other parts. Commonly used mechanical assembly methods include bearing pressing, pin connection and threaded connection. The mechanical assembly method is simple, the cost is low, and it is suitable for copper forgings with relatively simple size.
Welding assembly: Using welding technology to permanently connect copper forgings to other parts. Common welding methods include arc welding, argon arc welding and laser welding. The welding assembly has the advantages of high connection strength and stable connection effect, but it needs to pay attention to the thermal deformation and quality detection of welded joints.
Expansion assembly: Copper forgings are connected to other parts by the use of expansion assembly technology. Expansion assembly methods include pressing method, rolling method and cold expansion method. The expansion assembly method can realize the close connection between copper forgings and other parts, and will not cause damage to the forgings, which is suitable for some copper forgings with smaller sizes or requiring higher sealing.
Third, connection technology
Threaded connection: Copper forgings are connected to other parts with a threaded structure. Commonly used threaded connections include internal and external threaded connections. The threaded connection has the characteristics of reliable connection and convenient disassembly, but the processing quality and fastening force of the thread need to be controlled well.
Locking connection: Copper forgings are connected to other parts by using components such as bolts, nuts and washers, and the stability of the connection is achieved by a given preload force. The locking connection has the advantages of reliable connection and simple disassembly, which is suitable for the connection occasions with high requirements.
Welding connection: Using welding technology to permanently connect copper forgings to other parts. The welding connection method can achieve high connection strength and stable connection effect, and is widely used in some situations where the load is large or the sealing is required to be high.
Different assembly methods and connection technologies have advantages and disadvantages, and the appropriate method should be selected according to the actual situation in the specific application.
Simple mechanical assembly, low cost, suitable for relatively simple copper forgings, but its connection strength is low; Welding assembly connection strength is high, the connection effect is stable, but the welding process may produce thermal deformation and welding quality problems, not suitable for some stringent occasions; The expansion assembly can realize the tight connection, but the assembly accuracy is high. The threaded connection has the characteristics of reliable connection and convenient disassembly, but the processing quality and fastening force of the thread need to be controlled well. Locking connection The connection mode is simple, and it is suitable for the occasions where the connection stability is required.
In this paper, the assembly and connection technology of copper forgings for agricultural machinery is studied, the common assembly methods and connection technology are summarized, and their advantages and disadvantages and application range are discussed. By deeply understanding and studying the assembly and connection technology of copper forgings of agricultural machinery, the assembly accuracy and connection reliability of agricultural machinery can be improved, and the technical support for the design and manufacture of agricultural machinery can be provided. Future research could further explore new assembly and connection technologies to meet the needs of agricultural machinery development.
