US 9,726,264 B2Granted

Continuously variable transmission

AssigneesHONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., Hon Hai Precision Industry Co., Ltd.

InventorWei-Feng Wu

Life of this patent

Estimating the term…

Loading patent…

Abstract

A continuously variable transmission includes a housing, an input assembly, a driven assembly, an output assembly, and a speed changing rod. The input assembly, the driven assembly, and the output assembly are rotatably assembled to the housing. The input assembly includes a power input shaft and a first friction member fixedly sleeved on the power input shaft. The driven assembly is positioned oppositely to the input assembly. The driven assembly includes a rotation shaft and a second friction member fixedly sleeved on the rotation shaft. The output assembly includes a power output shaft and a rotational wheel non-rotatably sleeved on the power output shaft and engaging between the first friction member and the second friction member. Rotations of the first friction member and the second friction member rotate the power output shaft, a transmission ratio of continuously variable transmission is adjustable by moving the speed changing rod.

Claims18

Dependent claims

A continuously variable transmission comprising:

a housing;
an input assembly rotatably coupled to the housing, the input assembly comprising:
a power input shaft rotatably passing through the housing;
and
a first friction member fixedly sleeved on the power input shaft and received in the housing;
a driven assembly rotatably received in the housing and positioned opposite the input assembly, the driven assembly comprising:
a rotation shaft rotatably passing through the housing;
and
a second friction member fixedly sleeved on the rotation shaft and received in the housing, the second friction member being opposite the first friction member;
an output assembly rotatably coupled to the housing, the output assembly comprising:
a power output shaft rotatably passing through the housing;
a rotational wheel non-rotatably sleeved on the power output shaft and engaging between the first friction member and the second friction member;
and
a speed changing rod movably coupled with the housing at one end, and another end of the speed changing rod coupled to the power output shaft,
wherein the first friction member and the second friction member are configured to rotate the power output shaft, and a transmission ratio of continuously variable transmission is adjustable by moving the speed changing rod to change a vertical distance between the rotational wheel and the power input shaft, the input assembly further comprises a drive gear non-rotatably sleeved on the power input shaft, the drive gear is spaced from the first friction member, the first friction member is positioned between the drive gear and the power output shaft the driven assembly further comprises a driven gear non-rotatably sleeved on the rotation shaft, the driven gear is spaced from the second friction member, the second friction member is positioned between the driven gear and the power output shaft;
the continuously variable transmission further comprises a first transmission assembly meshed with the drive gear and a second transmission assembly meshed with the driven gear, both the first transmission assembly and the second transmission assembly are rotatably received in the housing, the first transmission assembly comprises a first transmission shaft, a first transmission gear, and the second transmission gear, the first transmission shaft rotatably passing through the housing, the first transmission gear and the second transmission gear are non-rotatably sleeved on the first transmission shaft and spaced from each other;
the first transmission gear is meshed with the drive gear, and the second transmission gear is meshed with the second transmission assembly, the first transmission shaft is substantially parallel to the power input shaft and the rotation shaft.

14 more elements

A continuously variable transmission comprising:

a housing;
an input assembly rotatably coupled to the housing, the input assembly comprising:
a power input shaft rotatably passing through the housing;
and
a first friction member fixedly sleeved on the power input shaft and received in the housing;
a driven assembly rotatably received in the housing and positioned opposite the input assembly, the driven assembly comprising:
a rotation shaft rotatably passing through the housing;
and
a second friction member fixedly sleeved on the rotation shaft and received in the housing, the second friction member being opposite the first friction member;
an output assembly rotatably coupled to the housing, the output assembly comprising:
a power output shaft rotatably passing through the housing;
a rotational wheel non-rotatably sleeved on the power output shaft and engaging between the first friction member and the second friction member;
and
a speed changing rod movably coupled with the housing at one end, and another end of the speed changing rod coupled to the power output shaft,
wherein the first friction member and the second friction member are configured to rotate the power output shaft, and a transmission ratio of continuously variable transmission is adjustable by moving the speed changing rod to change a vertical distance between the rotational wheel and the power input shaft, the continuously variable transmission further comprises an adjusting assembly, the adjusting assembly comprises an elastic member and an adjusting member, the elastic member is sleeved on the rotation shaft away from the second friction member and received in the housing, the adjusting member is adjustably sleeved on an end of the rotation shaft away from the second friction member and protrudes from out of the housing, and the elastic member resists between the second friction member and the adjusting member.

12 more elements

Dependencies are inferred from the claim text.