Flat bottomed large plate flange nut is a specially designed fastener that combines the characteristics of flat bottomed, large plate, and flange structures, and is widely used in many fields such as machinery, construction, and automotive manufacturing. The following provides a detailed description of its structural characteristics, performance advantages, application scenarios, selection criteria, installation and maintenance, etc
Structural characteristics
Flat bottom design: The bottom of the nut is flat, with a large and smooth contact area with the surface of the connector, which can effectively disperse pressure, avoid local stress concentration, reduce damage to the surface of the connector, and improve the stability of the connection. For example, in some precision instruments and equipment, a flat bottom design can ensure that the nut installation will not damage the flatness of the instrument surface due to excessive local pressure.
• Large plate structure: The top of the nut has a large disc-shaped structure, which increases the contact area between the nut and tools such as wrenches, making it convenient for operators to install and disassemble. Especially in situations where space is limited or large torque is required, the large plate structure can provide better operational convenience. For example, in some car engine compartments, the space is relatively compact, and the large flange nuts are easy for maintenance personnel to use tools for quick operation.
Flange section: The middle of the nut extends outward to form a flange, which usually has multiple evenly distributed holes or protrusions. These holes can be used for installing positioning pins or as auxiliary positioning points for other connection structures, enhancing the positioning accuracy and connection strength between nuts and connectors; The protrusion can increase the friction with the surface of the connecting piece, preventing the nut from loosening in a vibrating environment.
Performance advantages
High strength connection: Its special structure enables uniform stress distribution when subjected to large loads, ensuring the reliability and stability of the connection. In the assembly of heavy machinery equipment, such as the connection of key components of large cranes, flat bottomed flange nuts can ensure that the equipment can withstand huge tensile and compressive forces without loosening during operation.
Good anti loosening performance: The tight fit between the flange and the surface of the connecting piece, as well as possible anti loosening structures (such as anti loosening teeth, locking washers, etc.), can effectively resist vibration and impact, reducing the risk of nut loosening. In the fixation of railway tracks, the strong vibration generated during train operation requires fasteners to have excellent anti loosening performance, and flat bottomed large plate flange nuts can meet this requirement.
Corrosion resistance: Different materials and surface treatment processes can be used according to the requirements of the usage environment, such as stainless steel materials or surface treatments such as galvanizing and nickel plating, to make it have good corrosion resistance and suitable for harsh environments such as humidity and corrosive gases. In marine engineering equipment, flat bottomed flange nuts need to withstand long-term corrosion from seawater. By selecting appropriate materials and surface treatments, their long-term stable operation can be ensured.
Application scenarios
Mechanical manufacturing: used in various types of machine tools, transmission equipment, etc., to connect and fix key components, ensuring the accuracy and stability of equipment operation. For example, in the connection between the spindle box and the bed of a CNC machine tool, the flat bottomed flange nut can provide reliable fastening force, ensuring high-precision operation of the spindle.
Construction engineering: used to connect and fix various components in large steel structures, bridges, and other buildings
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