Overdrive transmission device convenient for steering switching

Abstract

The invention discloses an overdrive transmission device convenient for steering switching. The transmission device comprises an output gear (1), a driving shaft (2) for providing power for the rotation of the output gear (1), and a turning gear set (5) for realizing reversing rotation of the output gear (1); a forward gear (3) sleeves one end, close to the output gear (1), of the driving shaft (2); the forward gear (3) is engaged with the output gear (1); the driving shaft (2) can be locked with the forward gear (3) so that the output gear (1) can be driven to rotate forward by use of the forward gear (3). The overdrive transmission device convenient for steering switching is capable of smoothly realizing steering switching of the output gear and effectively saving energy source.

Description

technical field [0001] The invention relates to a transmission device, in particular to an overrunning transmission device which is convenient for steering switching. Background technique [0002] The transmission device is an intermediate device that transmits the power of the power device to the working mechanism. Among them, taking a motor vehicle as an example, the basic function of the transmission device is to transmit the power from the engine to the driving wheels of the motor vehicle to generate driving force so that the motor vehicle can run at a certain speed. [0003] like figure 1 As shown, the existing motor vehicle transmission includes an output gear 1 , a driving gear 7 and a reversing gear set 5 . Wherein, the output gear 1 is connected with a differential (not shown in the figure), and can rotate forward and reverse, so as to realize the forward and backward driving of the motor vehicle. [0004] Driving gear 7 links to each other with drive shaft 2, an...

AI Technical Summary

Problems solved by technology

[0009] 1) Since the driving gear 7 needs to be close to the output gear 1 and meshed with it during the forward and backward switching process of the motor vehicle, or the driving gear 7 needs to be close to the transmission gear 51 in the direction changing gear set 5 and meshed with it to realize the motor vehicle Switching between forward and reverse driving, and the misalignment between the gears often causes serious cross collision and blockage due to the large diameter difference between the two gears, resulting in the failure of normal sliding into the mesh between the gears, This will also cause the switching to fail, and may even cause gear damage;

[0010] 2) During the driving process of the motor vehicle, when the relative speed of the output gear 1 is higher than the speed of the drive shaft 2, that is, when the phenomenon of "overrunning" occurs, the output gear 1 will drive the drive shaft 2 to rotate, and then it will also carry the engine Load operation, which results in a shorter "overrun" taxiing distance and increased fuel consumption

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