Gearbox transmission structure facilitating gear selection and shifting

Abstract

The invention discloses a gearbox transmission structure facilitating gear selection and shifting. The gearbox transmission structure facilitating gear selection and shifting comprises an intermediateshaft, wherein the intermediate shaft is a hollow shaft; a first gear selection shaft is arranged in the intermediate shaft, and a first supporting step is arranged on the first gear selection shaft;the intermediate shaft is provided with a first mounting port and a second mounting port, and the intermediate shaft is connected with a first-gear transmission steel column through the first mounting port; the intermediate shaft is connected with a second-gear transmission steel column through the second mounting port; and the second-gear rack wheel is provided with a second-gear gear round groove. Under the condition that a synchronizer is not used, different states of gaps between different transmission steel columns and the corresponding gear round grooves are realized, engaged transmission of gears at different positions is realized, gear selection and shifting operations are quite simple and convenient, the production and manufacturing costs of a gearbox can be greatly reduced, thestructure is simplified, thus, a gearbox structure is compact, the weight of an overall automobile is reduced, and the gearbox transmission structure facilitating gear selection and shifting is lightand convenient, low in price, wide in applicability and high in universality, has great marketing application prospect, and is high in economic value.

Description

technical field [0001] The invention relates to the technical field of gearboxes, in particular to a transmission structure of a gearbox convenient for gear selection and shifting. Background technique [0002] Manual gearbox, that is, the gear meshing position in the transmission must be changed by hand to change the gear meshing position in the transmission to achieve the purpose of gear shifting. By changing the transmission ratio, the purpose of gear shifting is achieved. The physical characteristics of the engine determine the existence of the gear box. First of all, any engine has its peak speed; secondly, the maximum power and maximum torque of the engine appear in a certain speed range, and there is a very important part inside the manual transmission, which is the synchronizer. Rotating at their respective speeds, there is a "synchronization" problem when changing gears. Two gears with different rotation speeds are forcibly meshed, and impact collisions will inevit...

AI Technical Summary

Problems solved by technology

Therefore, the shifting of the old-fashioned transmission should adopt the "two-leg clutch" method, and the upshift should stay in the neutral position for a while, and the downshift should be fueled in the neutral position to reduce the speed difference of the gears, but this operation is more complicated and difficult. Accurate grasp, through the synchronizer, the gears to be meshed can reach a consistent speed and mesh smoothly, which can transmit frictional energy, so that the speed of the shaft teeth with a small speed and the speed of the shaft teeth with a large speed can be close to facilitate shifting, and can also reduce shifting Due to impact, almost all current manual transmissions use synchronizers to synchronize the speed of the motor and transmission shaft to achieve safe shifting. Most traditional manual transmissions use transmission gears installed on the intermediate shaft. The structure of the synchronizer connection, the shift fork moves the adapter sleeve on the synchronizer back and forth, so that the adapter sleeve engages with the synchronous lock ring, and the synchronous lock ring and the large gear are installed as a whole, so as to realize power transmission, although the current processing of the synchronizer The production is relatively mature, but the shape and structure of the synchronizer are complex. During production and processing, the input cost is high, the price is high, the user popularity is not strong, the market application cannot be promoted in a large area, and the economic benefits are not obvious. In view of the above problems, special The invention is designed to solve

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