There are many things we need to pay attention to in the production and processing of gears. What are the points we need to pay attention to? These can give us better products in the process of processing gears, so we need to pay attention to the production of gears:
1, curved surface center hole
Since all the machining steps of the gear pump gear are based on the center hole as the positioning reference, the gear machining accuracy is required to be high, so the quality of the center hole has a great influence on the machining quality of the gear. The contact between the center hole of the curved surface and the tip tapered surface is an annular strip contact, the contact is good, the positioning is accurate, and the center hole is easy to be ground.
2. The depth of the center hole and the distance between the two center holes
General gear pump production is mass production, and all machining processes of pump gears are based on two central holes. In order to simplify the adjustment of the machine tool and make the machining operation convenient, the depth from the center hole of the gear processing to the end face of the journal and the distance between the two center holes should be strictly controlled, and a special inspection tool should be set in the machining process for inspection.
3, the tooth blank
The gears of the medium and high pressure gear pumps are all integral shafts, and the gear blanks are generally die forged. Due to the large machining allowance of forgings, it consumes energy and consumables. At present, some gear processing factories use precision forgings, and select the bar with the thickness as the journal size and the margin, and heat the middle part to the blank size of the gear. Friction welded parts can also be used as the blank, which saves energy, reduces material and reduces processing time.http://www.delinggearbox.com/