Suspension multi-level road wheel stepless speed changer

Abstract

The invention relates to a mechanical speed changer, in particular to a suspension multi-level road wheel stepless speed changer, wherein a suspension multi-level planet gear mechanism is adopted in a driving system. The main part of the speed changer comprises an input shaft (1), a suspension planet frame (2), a first-level road wheel shaft (3), a second-level road wheel shaft (4), a third-level road wheel shaft (5), an input middle wheel (6), a first-level planet wheel (7), a second-level planet wheel (8), a third-level planet wheel (9), a driving planet wheel (10), an output wheel (11), an output shaft (12) and a shell (13). The torsion of the input middle wheel (6) is transmitted to the output wheel (11) through a multi-level planet gear, and after the torque is increased, the output shaft (12) is pushed, so that the maximum torque can be output when the output shaft is in low speed. After load is reduced, the multi-level planet gear mechanism can also output the highest rotation speed in a revolution way, so that a purely mechanical stepless speed changing function is finished. The speed changer is very simple in structure, very low in cost, large in transmission ratio continuous bearing capacity, safe, reliable, and long in service life.

Description

Technical field [0001] The invention relates to a mechanical transmission, in particular to a suspended multi-stage row-wheel continuously variable transmission that adopts a suspended multi-stage planetary gear mechanism in a vehicle transmission system and realizes a torsion torque boosting output. Background technique [0002] At present, the most commonly used automatic transmission technology in automobiles is an automatic transmission technology that combines a hydraulic torque converter and a planetary gear train, but it has obvious shortcomings: the transmission ratio is not continuous, the hydraulic transmission efficiency is low, and the structure is complicated. Maintenance is inconvenient. Another type of continuously variable transmission (CVT) uses metal transmission belts and variable-diameter main and driven wheels to transmit power. However, the weakness of CVT is that the metal belt has small carrying capacity, limited transmission power, and high cost. The serv...

AI Technical Summary

Problems solved by technology

[0002] At present, the automatic transmission technology that is widely used in automobiles is the automatic transmission technology that combines the hydraulic torque converter and the planetary gear train, but it has obvious disadvantages: the transmission ratio is discontinuous, the hydraulic transmission efficiency is low, and the structure is complicated. It is inconvenient to maintain, another continuously variable transmission (CVT), which uses a metal transmission belt and a variable diameter driving and driven wheel to transmit power, but the weakness of CVT is that the metal belt has a small carrying capacity, limited transmission power, and high cost The service life is short, and its control system is quite complex, resulting in an increase in auxiliary costs. Currently, it can only be used in cars

The present invention adopts the suspension multi-stage planetary gear mechanism and realizes the suspension multi-stage row wheel stepless transmission with which the torque is increased. When it is working, it directly performs the operation of stepless variable torque and variable speed according to the load change. No similar structural products and related materials

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