Arrangement structure of gear shaft system of gearbox

Abstract

The invention relates to an arrangement structure of a gear shaft system of a gearbox. The arrangement structure comprises an input shaft as well as a first output shaft and a second output shaft which are in parallel with the input shaft and are arranged at the two sides of the input shaft, wherein driving gears are fixed on the input shaft; driven gears are sleeved on the output shafts in an idle manner; the driving gears are meshed with corresponding driven gears and drive the driven gears to rotate; at the same time, the first and second output shafts are provided with joint devices which are matched with the driven gears and are used for switching gears; and the first and second output shafts are driven by the joint devices to rotate to output power. Compared with the prior art, the arrangement structure has the following beneficial effects: the arrangement of the inner space of the gearbox is reasonable; the number ratio is easy to match; and the axial distance is shorter.

Description

technical field [0001] The invention relates to an arrangement structure of a gearbox gear shaft system, in particular to a gear shaft arrangement scheme of a six-speed manual gearbox. Background technique [0002] In the early 1990s, the five-speed gearbox quietly emerged. Major car brands, including Mercedes-Benz, Mitsubishi, Honda, Santana, etc., have successively launched models equipped with five-speed gearboxes. Generally speaking, the fifth gear is generally the second overdrive gear, which reduces the variable transmission ratio and increases the speed of the vehicle. This is the new requirement of the user for the performance of the car after the expressway became popular in China at that time. Before long, the market developed such that cars with five-speed transmissions became mainstream. The structural principle of most five-speed gearboxes is to realize the speed change by the direct meshing of the input shaft and the output shaft gear. [0003] The six-speed...

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Problems solved by technology

[0004] However, the layout of the existing six-speed gearbox gear shafting is affected by many factors: the matching of the ratio, the matching of the center distance, the limitation of space, the space of the joint device and the gear, the axial size, the balance of the force, etc. , so that the arrangement of its gear shafting is mostly unreasonable. For example, Japanese Patent No. 4382973 disclosed a manual transmission on October 2, 2009, which realizes six-speed manual transmission through the shafting arrangement of the gears. However, the manual The shift sequence of the third and fourth gears of the gearbox is inconsistent with the first, second, fifth and sixth gears, and an additional shift conversion mechanism is required to realize it. At the same time, the numbers are difficult to match, and the axial distance is long

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