SU1256997A1 - Gearbox - Google Patents

Description

This invention relates to vehicle engineering, in particular to gearboxes primarily for motorcycles.

The purpose of the invention is to reduce the size and noise during gear changes.

FIG. 1 shows a structural diagram of a three-stage gearbox with coaxial shafts; in fig. 2 is a section .A-A in FIG. one; in fig. 3 is a diagram of a three-stage gearbox, made according to a two-shaft scheme; in fig. 4 is a diagram of a four-speed gearbox with axial shafts; in fig. 5 is a diagram of a six-speed gearbox with coaxial-shaft | MI with an additional clutch and a half-coupling unit installed in the hollow part of the input shaft; in fig. 6 is a diagram of a six-speed coaxial gearbox with two symmetrically mounted intermediate shafts with an additional clutch and a half-coupling unit installed in the hollow part of the input shaft.

The gearbox contains input I, output 2 and intermediate 3 shafts, block

4 fixed gears, a gearshift mechanism 5 with a shift clutch 6, and sliding tabs 7 and a hollow part 9 of the output shaft 2 installed in the slots 8, the gearshift mechanism 5 being made in the form of a block of 10 half couplings, each of which a disk having, on the outer diameter of the depression IL, interacting with the projections 7 of the gearshift clutch 6, which are made according to its inner diameter. The half-coupling unit 10 is located outside the 4-pinion gearing unit.

The proposed implementation principle of the switching mechanism is applicable for 2-6 -

2- and 3-speed manual gearboxes (Fig. 3-6).

Transmission works as follows.

The rotation from the engine enters the input shaft 1 and through the block 4 of the gears on the coupling halves 10. To drive the output shaft 2 at the desired speed, the protrusions 7 of the clutch 6 switch are installed in the depressions 11 of the coupling half 10 of the desired level.

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2

fig.Z

Claims (1)

GEARBOX mainly for motorcycles, comprising input, output and intermediate shafts, a gear block of constant gearing, a gearshift mechanism with a gearshift clutch having protrusions and installed in the grooves of the hollow part of the output shaft, characterized in that, in order to reduce the dimensions when shifting gears , the switching mechanism is made in the form of a block of coupling halves connected to the switching gears, each of which is a disk having troughs interacting with the protrusions on the outer diameter and switching clutches made according to its inner diameter, wherein the half-coupling block is located outside the constant gear gear block. figure 1 SU „, .1256997