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power split transmission

A transmission and power technology, applied in transmissions, fluid transmissions, belts/chains/gears, etc., can solve the problems of high wear and damage of the drive unit, and achieve the effect of eliminating demand

Active Publication Date: 2020-05-12
DANFOSS POWER SOLUTIONS GMBH & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, high inertial forces can lead to high wear and / or damage in the drive unit used by the variable power branch

Method used

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Examples

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Embodiment Construction

[0025] figure 1 A power splitting transmission 1 according to the prior art is shown, for example as applied in tractors from AGCO Fendt. The power splitting transmission 1 has a power input shaft 2 on the input side, which can be connected to a unidirectional steering power source, for example, an internal combustion engine not shown. On the other side of the power split transmission 1 , the output side, a power take-off shaft 3 serves as a connection to a load (for example, a drive train). The planetary gear set 10 is driven by a power input shaft 2 which is directly connected to the planetary gear carrier 11 of the planetary gear set 10 , the planet gears 14 of which mesh with the sun gear 13 and with the ring gear 12 . These features and general functions of planetary gear sets are well known and further detailed description thereof will be omitted.

[0026] Such as figure 1 As shown, the ring gear 12 is connected to a gear wheel 16 which meshes with another gear wheel ...

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PUM

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Abstract

The invention relates to a power splitting transmission (1) and a method of combining the power flow of a power splitting transmission (1). The power input shaft (2) drives a planetary gear set (10) that divides input power at the power input shaft (2) into variable power branches (20) with variable transmission ratios The power flow on the machine and the power flow on the mechanical power branch (30) with a fixed transmission ratio. The power flow transmitted on the variable power branch (20) can be combined again with the power flow on the mechanical power branch (30) for driving the power output shaft (3). A commutator (8) including a first clutch (4), a second clutch (5), a first gear set (6) and a second gear set (7) is used for merging the power flow and driving the power output shaft (3). If the output shaft (22) of the variable power branch (20) and the mechanical transmission shaft (32) rotate in opposite directions, the first gear set is driven by engaging the first clutch (4) and disengaging the second clutch (5) (6). If the variable power branch (20) and the output shaft (22) of the mechanical transmission shaft (32) rotate in the same direction, the second gear set is driven by engaging the second clutch (5) and disengaging the first clutch (4) (7), the transmission ratio of the second gear set (7) is opposite to the transmission ratio of the first gear set (6).

Description

technical field [0001] The present invention relates to a power splitting transmission comprising a power input shaft for driving a planetary gear set which splits input power at the power input shaft into variable power branches with variable transmission ratios The power flow on and on the mechanical power branch with a fixed transmission ratio, however the power flow transmitted on the variable power branch and the mechanical power branch can be combined again to drive a common PTO shaft. The invention also relates to a method of merging power flow from a power split transmission. Background technique [0002] For example, in machines such as wheel loaders or tractors, an internal combustion engine provides the power for propelling the machine in a forward or reverse direction and also powers other machinery. The transmission is connected to the engine through the power input shaft and transmits power from the engine to the drivetrain through the power output shaft to pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H47/04
CPCF16H47/04F16H2037/0873
Inventor 延斯·巴古施托斯坦·科马斯切尔
Owner DANFOSS POWER SOLUTIONS GMBH & CO