Gear box for snowmobile

Abstract

The invention relates to a gear box for a snowmobile. A large input gear and a small input gear are supported by an input shaft; the large input gear is meshed with a small output gear which is arranged on a first output shaft; the small input gear is meshed with a large output gear which is arranged on the first output shaft; a first gear-shifting wheel is arranged between the large input gear and the small input gear; a driving gear-reversing wheel is arranged beside the small input gear; the driving gear-reversing wheel is meshed with a driven gear-reversing wheel which is arranged on a gear-reversing shaft; a transmitting gear-reversing wheel is supported by the gear-reversing shaft; the transmitting gear-reversing is meshed with the large input gear; the gear-reversing shaft is connected with a second gear-shifting wheel through a spline; a second output shaft is supported by the lower part of the body of the gear box; and the second output shaft is connected with the small inputgear through a transitional gear mechanism. The gear box for the snowmobile is provided with two forward gears, one neutral gear and one reversing gear, can meet the actual requirement of running in different environment of the snowmobile, has the characteristics of simple structure, easy assembling, reliable transmission, high efficiency and strong impact resistance ability and is particularly suitable for the small and medium-size snowmobile bumping violently in the environment of below 40 DEG C.

Description

technical field [0001] The invention belongs to the technical field of snowmobiles, and in particular relates to a gearbox for snowmobiles. Background technique [0002] Snowmobiles are generally of the front skid and rear crawler type, which can move quickly in the snow, and are the most extensive and convenient means of transportation in snow-covered areas. Snowmobiles are neither armored nor equipped with weapons. The main technical indicators are reliable structure, light and flexible, good mobility in snow (or multiple terrains) and certain loading capacity. The gearboxes of existing snowmobiles are not only complex in structure, difficult to assemble, and high in cost, but also have poor transmission reliability, low efficiency, and weak impact resistance, which is not conducive to small and medium-sized snowmobiles that are violently vibrated and overturned under severe cold and low temperature. . Contents of the invention [0003] The technical problem to be solv...

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