High temperature melt pump manufacturers analyze the characteristics of gears with small axial force
As a professional high-temperature melt pump manufacturer, it has nearly 20 years of R&D and production experience, and provides matching melt conveying, metering and pressurization solutions for large domestic extrusion enterprises. In view of some characteristics of gears with small axial force, Zhengzhou Batte high temperature melt gear pump manufacturer makes the following analysis and description.
The core moving part of the high-temperature hot melt pump is the gear assembly. On the one hand, the rotation and meshing of the gears can squeeze the melt between the teeth, so that the material can be transported from one end to the other end. On the other hand, the meshing of the gears can close the low-pressure cavity, which is beneficial to Increase output pressure. The gear components of the high temperature melt pump have various forms such as spur gears, helical gears and herringbone gears. Spur gears and helical gears are easier to manufacture, but the self-cleaning properties of spur gears are poor, and pressure fluctuations will occur at higher speeds; while helical gears overcome the problems of poor self-cleaning and pressure fluctuations, but they are unavoidable during operation. The ground will generate a large axial force, which will not only aggravate the wear of the gear shaft and the sliding bearing, but also cause serious shearing of the backlash melt, affecting the quality of plastic products. In order to balance the axial force of the melt pump under heavy load conditions and run smoothly, the gear with a better structure is a herringbone gear.
In the past ten years of development in China, the melt pump in extruder has become a common equipment for the processing of plastic products such as granulation and extrusion, film blowing, pipe extrusion, extrusion coating, profile extrusion and continuous blow molding. These applications involve virtually all thermoplastic resins, thermoplastic elastomers and other polymers. Zhengzhou Batte provides melt pump equipment including: extruder melt pump, reactor melt pump, pipeline booster gear pump, etc.