1. Shape and size are adapted to the needs of office equipment
The shape and size of Precision Shafts For Office Equipment are carefully designed according to the internal layout and functional requirements of office equipment. From the shape point of view, the most common one is cylindrical, because the cylindrical shape has good stability and uniform force characteristics during rotation. For example, in the paper feed mechanism of a printer, the cylindrical precision shaft can smoothly drive the paper feed roller to rotate to ensure the smooth delivery of paper.
In terms of size, the length and diameter of the shaft are determined according to the space limitations and tasks of the specific office equipment. In small office equipment such as portable scanners, in order to adapt to the compactness of the equipment, the diameter of the precision shaft will be relatively small and the length will be short to achieve functions in a limited space. In large equipment such as copiers, the size of the shaft may be larger to meet higher torque transmission requirements and longer component connection requirements.
2. With multiple functional structural features
Precision shafts often have multiple functional structural features. For example, the keyway structure is designed to achieve precise connection and power transmission with other components (such as gears). In the fixing unit of the copier, the keyway on the precision shaft is closely matched with the fixing roller gear to ensure the stable rotation of the fixing roller, thereby realizing the fixing process of the toner on the paper.
The threaded structure is also one of the common features. In some adjustment mechanisms of office equipment, the precision shaft with threads can easily realize the axial adjustment between components. For example, in the nozzle height adjustment mechanism of the printer, by rotating the precision shaft with threads, the distance between the nozzle and the paper can be accurately adjusted to ensure the printing quality.
3. Pay attention to the matching accuracy with other components
Precision Shafts For Office Equipment pays great attention to the matching accuracy with other components in structural design. When matching with bearings, the outer diameter size accuracy of the shaft is extremely high to ensure stability and low friction loss during high-speed rotation. For example, in the output shaft part of the high-speed rotating office equipment motor, the matching of the precision shaft and the bearing needs to be accurate to the micron level to reduce vibration and noise.
At the same time, the matching of the shaft and the sleeve is also the key to the design. In the scanning head moving mechanism of the scanner, the matching clearance between the precision shaft and the sleeve needs to be strictly controlled. It should not be too large to cause the scanning head to shake and affect the scanning accuracy, nor too small to avoid excessive friction to hinder the smooth movement of the scanning head.
4. Consider the convenience of manufacturing and assembly
In order to facilitate manufacturing and assembly, the structural design of Precision Shafts For Office Equipment also has corresponding characteristics. In design, complex shapes and structures will be minimized to reduce manufacturing difficulty and cost. For example, with a simple stepped shaft structure, stepped parts of different diameters can be easily processed and positioned, and it is also convenient to nest with other parts of different inner diameters during assembly.
Moreover, in the design of the end structure of the shaft, the operation of facilitating the installation and removal of tools will be considered. For example, a flat surface or hexagonal hole is set at the end of the shaft to facilitate installation and removal using tools such as wrenches or hexagonal screwdrivers, which is very important in the repair and maintenance of office equipment.
