A transfer case includes first and second output shafts selectively driven by an input shaft. A first gearset is driven by the input shaft providing first and second gear ratios to the first output shaft. A range actuator includes an axially moveable member operable to shift the first gearset between the first and second gear ratios. An actuation shaft is coupled to the axially moveable member such that rotation of the actuation shaft translates the axially moveable member. A second gearset is driven by the input shaft and drives the actuation shaft. The second gearset includes a control gear moveable into and out of meshed engagement with a first gear and an idler gear. The actuation shaft is rotated in a first direction when the control gear is meshed with the first gear and rotated in an opposite direction when meshed with the idler gear.

Transfer case sprocket idler gear actuation

The utility model discloses a multipurpose gear case Three-stage transmission effects can be realized by the multipurpose gear case, and the multipurpose gear case comprises parallel shaft systems, a primary planetary gear train and a secondary planetary gear train The multipurpose gear case has the advantages that the parallel shaft systems are used for controlling change of a speed ratio of the gear case, so that conditions for replacing different models can be created; power can be outputted by a secondary planetary carrier of the multipurpose gear case, the multipurpose gear case can be connected with different devices and accordingly can be applied to speed reducers of rolling machines, speed reducers of central transmission mills and speed reducers of sugar presses; blades can be driven by wind power to be directly connected with the secondary planetary carrier when the multipurpose gear case is applied to a wind-driven power generator, the power generator can be driven to generate power after the blades are accelerated, accordingly, the multipurpose gear case has multiple functions, and the manufacturing cost can be obviously reduced

Multipurpose gear case

A transfer case (18) is disclosed. The transfer case (18) includes an input shaft (16) and a sun gear (56). The sun gear (56) includes a collar end (58) and a gear end (60) and at least a portion of the sun gear (56) circumscribes the input shaft (16). A hub (62) circumscribes the collar end (58) and the input shaft (16), and may be slidably move between a first position (64) and a second position (66) opposite the first position (64) along the input shaft (16) and the collar end (58). A plurality of planetary gears (70) is mounted in a carrier body (72) circumscribing the gear end (60), and the carrier body (72) is splined with the transfer case input shaft (16). A ring gear (78) circumscribes the plurality of planetary gears (70) mounted in the carrier body (72), and is integrally joined with an output shaft (20). The ring gear (78) is rotatable around the plurality of planetary gears (70).

Transfer case for a drive train

The invention relates to a planetary speed reduction and gear shifting mechanism and an automobile and belongs to the technical field of automobile transmission systems. The planetary speed reductionand gear shifting mechanism comprises an input shaft and an output shaft, which are coaxially arranged, wherein the input shaft is used for supporting a sun gear of a planetary speed reduction mechanism; the planetary speed reduction and gear shifting mechanism further comprises a first sliding gear sleeve, a second sliding gear sleeve and a gear-shifting shifting fork mechanism; the first slidinggear sleeve is engaged with the input shaft; the first sliding gear sleeve is also engaged with or separated from the output shaft or is engaged with or separated from the sun gear; the second sliding gear sleeve is engaged with the output shaft; the second sliding gear sleeve is also engaged with or separated from a planetary carrier of the planetary speed reduction mechanism; the first slidinggear sleeve is connected with the second sliding gear sleeve; and the gear-shifting shifting fork mechanism is used for driving the second sliding gear sleeve. According to the planetary speed reduction and gear shifting mechanism, the input shaft and the sun gear adopt a splitting type design, so that the noise problem of a planetary gear train in an operation process under a high-gear working condition is extremely improved, the service life of the gear is prolonged and the highest input rotary speed index of the speed reduction mechanism is improved.

Planetary speed reduction and gear shifting mechanism and automobile

Electric tricycle transmission system

Disclosed is a range shift mechanism in the form of a floating planetary gear assembly for a transfer case. The range shift mechanical according to the present invention can improve power efficiency and generate low noises by suppressing gear rotation in a high range mode of the range shift system.

Range shift system for transfer case

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Range shift system for transfer case