Yancheng XINLAN Precision Machinery Co., Ltd.

Gear is the power and movement transmission mechanism between one shaft and another shaft.And transmit motion with a constant speed ratio without slipping.The accuracy of gear output depends on the accuracy of its design and manufacturing.The correct manufacture of gears requires a lot of calculations and design considerations.Gear processingThe picture is an important technical reference for designing machinery.When a machine designer needs gears when designing a new machine, there are two possibilities: design the new gear itself and use the designed standard gear.In any case, gear transmission is essential.The items included in the gear machining diagram. The gear machining diagram shows the orthogonal diagram and the basic data table of the gear.Orthogonal views represent detailed shapes except for tooth profile, size, geometric tolerances, and surface roughness.The surface roughness should be placed on the dashed line of the reference circle of the gear cross section.In addition, if the position or phase of the tooth is important to the function of the part, it is indicated by the distance from the center line of the tooth or the space between the teeth to the keyway or screw hole.Precautions for pulling gears: The gear itself is not used.Therefore, it is necessary to describe the information of the pair of gears, such as the center distance.Similarly, if tooth contact needs to be considered, crown and end release can be specified.For crowns, it is recommended to specify the curvature along the tooth trace.

Regarding the description of the gear shape, it was not necessary to draw the tooth profile in the gear processing drawing.However, recently 3D data and EDM or 3D printers are increasingly used to make gears.For these gears without gear cutting tools, the tooth profile of the gear must be accurately drawn.