SU185654A1 - SPEED TRANSMISSION WITH VARIABLE TRANSMISSION - Google Patents

Description

Gears with variable gear ratios between parallel axes are known, consisting of non-circular wheels, the shape of which is a function of a given gear ratio. The lack of gears with non-circular gears between intersecting and intersecting axles is due to the difficulty of making non-circular wheels. The proposed gearing with a variable gear ratio is characterized in that it is made of a cylindrical volumetric gear that interacts with an non-involute gear ring located along a guide curve, which is a function of a given gear ratio and lying on a conical surface. Performing a gear with such a gear allows you to simplify the production technology of gear wheels and get gear gears with variable gear ratio with any axes in space. When transmitting rotation between parallel axes, the engagement is made of two non-involute gear rims located along guide curves that are a function of a given gear ratio and cones lying on the surfaces, whose vertices are directed in opposite directions. FIG. Figure 1 shows a gear transmission with a variable ratio between intersecting axles; in fig. 2 - the same, between crossed axes; in fig. 3 - the same, between parallel axes. A cylindrical spur-like involute wheel / engages with an non-involute gear 2, located along a guide curve that is a fuction of a given gear ratio and lying on a conical surface 3. The axes / and // intersect at an angle of 6 at the point O. In similar gearing ( see Fig. 2) the wheels / and 2 axles / and // are crossed at an angle b. In the transmission with parallel axes / and // (see Fig. 3), two non-involuted gears 4 v interlock with each other. 5, located along guide curves that are a function of a given gear ratio and lying on the surface of the cones 6 and 7 whose vertices are directed in opposite directions. Subject invention

and intersecting axes, characterized in that, in order to simplify the production technology of gear wheels, the transmission is made of a cylindrical sliding involute wheel engaging with an non-involute gear ring located along a guide curve that is a function of a given gear ratio and lying on conical surface.

2. A gear transmission of claim 1, characterized in that, in order to obtain a transmission between parallel axes, it is implemented with the engagement of two non-involute gear rims arranged along guide curves, which are a function of a given gear ratio and lying on the surfaces cones whose vertices are directed in opposite directions.

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