SU84427A2 - Variable transmission - Google Patents

Description

BASIC Auth. St. № 75645 Described on the variable transmission. The change in the gear ratio is made by two knobs, one of which serves to rotate the drum and the other to move the wheel block with a cam clutch located on the drive shaft and used to turn on the gear.

In the described leredach, one handle was used to control and the dimensions of the gear were reduced. This is achieved by the fact that the coaxially driving and driven shafts are open outside 6apa6aBia and a curved ring mounted on the drum moves the cam coupling for the purpose of directly connecting the driving and driven shafts.

FIG. 1 shows a schematic section of a transmission along a plane parallel to the axis of the shafts; in fig. 2 is the same section along A-A in FIG. one.

In a split housing / gear box, on spikes 2, a drum 5 is mounted, in which shafts 4 are mounted around the circumference, each carrying two gears 5 and b, of which the wheels 5 successively engage with the wheels 5 of the driven shaft 10. Number of wheels 7 and 9 and intermediate shafts 4 determine the number of gear stages. On the driven shaft 10 there is a movable cam coupling 11 with an annular groove L in which ring B comes in with post C fixed on the rotary drum 5. To reverse the driven shaft, one of the wheels b engages the driven wheel P via a parasitic gear 12. For rotation baraba.na applied gear pair 13, 14, in which the wheel 13 is rigidly fixed in the drum, and the gear 14 is mounted on the shaft 15, on the free (the tip of which is attached to the handle.

The working gear is a two-stage coaxial gearbox. The gear ratio / is ground by turning the drum and putting the wheels 5 and 5 into or from the intermediate shafts 4 with the wheels 7 and P.

At the angular position of the drum, in which the protrusion C of the ring B is located in the groove I of the cam clutch 11, the latter connects the forward drive 8 and the driven 10 shafts to the forward, and the wheels of the intermediate shafts 4 remain coupled with the wheels of the driving 8 and the driven 10 shafts.

Subject and s about-r ete a and

Variable transmission auth. St. No. 75645, characterized in that, in order to reduce the dimensions of the transmission and to enable control of one handle, the drive and driven shafts are located outside the rotary drum, and a curved ring rigidly connected to it is used to switch the cam clutch when turning.

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