Multifunctional application of hand pumps in the machinery manufacturing industry

1. Power source of threaded fasteners and tightening and tensioning devices
In the process of machinery manufacturing, threaded fasteners are the basic elements for connecting and fixing various components, and their tightening degree directly affects the stability and service life of the equipment. The hand pump provides a stable and controllable power source for the installation and removal of threaded fasteners by generating hydraulic pressure. Compared with the traditional manual tightening method, the hand pump can apply a more uniform and high-intensity pre-tightening force, effectively preventing loosening caused by insufficient tightening or damage caused by excessive tightening. In addition, in occasions where precise control of the tightening force is required, such as aerospace, automobile manufacturing and other fields, the hand pump is used in conjunction with a pressure gauge and a torque wrench to ensure that each bolt can reach the tightening torque required by the design, thereby improving the reliability and safety of the overall structure.

For tightening and tensioning devices, such as the tensioning of transmission parts such as chains and belts, the hand pump also shows the characteristics of high efficiency and convenience. Through hydraulic drive, the tension can be adjusted quickly and accurately, which not only simplifies the operation process, but also improves work efficiency and maintenance convenience.

2. Interference fit disassembly and assembly
In mechanical equipment, interference fit of smooth conical or cylindrical surfaces is a common connection method. It relies on the friction between the mating surfaces to transfer loads and requires extremely high assembly accuracy. The application of the hand pump here is mainly reflected in the easy disassembly and assembly of interference fit parts by generating hydraulic expansion or compression force. For example, when installing bearings, special tools driven by hand pumps can be used to pre-expand or pre-compress the bearing seat or shaft, so that the bearing can slide into the predetermined position without damage, greatly improving the assembly efficiency and quality.

3. Reliable power source for installation and commissioning of heavy equipment
In the installation and commissioning of heavy equipment such as bridge construction machinery, large ships, power generation equipment, etc., hand pumps play a vital role as the power source of hydraulic load cylinders or jacks. It can provide sufficient lifting force to help the equipment accurately position and calibrate. At the same time, the characteristics of manual operation make it flexible to use in narrow or power-inconvenient sites. Especially when it is necessary to fine-tune the height or make precise horizontal adjustments, the precise control ability of the hand pump is particularly important, ensuring the high precision and stability of equipment installation.

IV. Technological innovation and future prospects
With the advancement of science and technology, hand pumps are also constantly innovating and developing, such as integrating intelligent control systems to achieve automatic pressure adjustment and fault warning; using new materials to improve the corrosion resistance and durability of the pump body; and designing a lighter and easier-to-operate pump body structure to adapt to more diversified application scenarios. In the future, the application of hand pumps in the machinery manufacturing industry will be more extensive, not only limited to traditional fields, but also in emerging fields such as intelligent manufacturing and automated production lines to show their unique value.