Novel lock ring synchronizer gearbox with ten-gear dual-intermediate shaft

Abstract

The invention discloses a novel lock ring synchronizer gearbox with a ten-gear dual-intermediate shaft. The novel lock ring synchronizer gearbox comprises a novel three-section case. The dual-intermediate shaft comprises an input shaft and a main shaft, the input shaft is arranged in a main box and is connected with the main shaft, the main shaft is connected with a sun wheel through a spline transition sleeve, the sun wheel is arranged in a sub box, a main shaft front locating mechanism and a main shaft back locating mechanism are respectively arranged at the front end and the back end of the main shaft, a gear shift helical gear set is further arranged on the main shaft, the gear shift helical gear set comprises five forward gear helical gears and a reverse gear helical gear, a pyramid lock ring synchronizer is arranged between the fourth gear and the fifth gear of the main shaft, bipyramid lock ring synchronizers are arranged between the second gear and the third gear and on a first reverse gear respectively, two gears are arranged on the sub box, the two gears arranged on the sub box and the main box form a structure of 5*2 10 forward gears and two reverse gears, and a planetary gear train mechanism and a widened bipyramid lock ring synchronizer are arranged in the sub box. The gearbox is saving in operation labor, stable in gear shift operation, smooth and steady in transmission, low in noise and long in service life.

Description

technical field [0001] The invention relates to a gearbox, in particular to a novel 10-speed helical double countershaft lock ring type synchronizer gearbox. Background technique [0002] At present, in the common double countershaft heavy-duty truck gearbox structure, it is necessary to align the teeth of the two countershaft gears to ensure the consistency of the two countershaft assemblies. In order to ensure the accuracy of tooth alignment, the gears of the main box generally adopt spur gears, which have the disadvantages of low assembly load capacity and high noise; , because the meshing line speeds of a pair of gears or meshing sleeves to be meshed during shifting are not equal, there will be impact and noise during meshing, and in severe cases, it will even cause damage to the gear teeth, resulting in early wear of the main box; corresponding to the above structure , the driver needs to pay a large shift force to complete the shift quickly and correctly in a short ti...

AI Technical Summary

Problems solved by technology

In order to ensure the accuracy of tooth alignment, the gears of the main box generally adopt spur gears, which have the disadvantages of low assembly load capacity and high noise; , because the meshing line speeds of a pair of gears or meshing sleeves to be meshed during shifting are not equal, there will be impact and noise during meshing, and in severe cases, it will even cause damage to the gear teeth, resulting in early wear of the main box; corresponding to the above structure , the driver needs to pay a large shift force to complete the shift quickly and correctly in a short time during operation, so the driver is prone to fatigue; the auxiliary box generally uses a short-stroke single-taper lock ring synchronizer to shift gears, Small synchronous capacity, easy to cause early damage

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