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Direct torque path differential with carrierless pinion

A pinion, differential technology, applied in the direction of elements with teeth, differential transmissions, gear lubrication/cooling, etc.

Active Publication Date: 2021-02-05
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This moment can cause the heel of the side pinion to tilt within the cup, thereby enabling a mechanical engagement between the cylinder wall of the side pinion and the side wall of the cup
In the same way as above, this engagement can limit lubrication of the pinion toe and cause premature wear

Method used

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  • Direct torque path differential with carrierless pinion
  • Direct torque path differential with carrierless pinion
  • Direct torque path differential with carrierless pinion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] figure 1 An exemplary mobile machine 10 is illustrated. In the illustrated embodiment, machine 10 is a wheel loader. However, it is contemplated that machine 10 may be implemented as another type of mobile machine, such as an articulated haul truck, an off-highway mining truck, a motor grader, or another machine known in the art. The machine 10 may include an operator station 12, one or more traction devices 14 located on opposite sides of the machine 10 supporting the operator station 12, and one or more traction devices 14 operatively connected to the propulsion traction devices 14 to respond to input received through the operator station 12. Transmission system 16.

[0022] Such as figure 2 As shown, the driveline 16 may be an assembly of components that transfer power from a power source (eg, an engine) 18 to the traction device 14 . In the disclosed embodiment, these components include a transmission 20 operatively connected to and driven by a power source 18 ...

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PUM

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Abstract

A side pinion (44) for use with a differential (22) of a mobile machine (10) is disclosed. The side pinion may include a body having a flat bottom (74) and a flat top (76) at an end opposite the flat bottom. The side pinion may also have a plurality of gear teeth (78) formed adjacent the flat top, and an arcuate outer surface (80) connecting the plurality of gear teeth to the flat bottom.

Description

technical field [0001] The present disclosure relates generally to differentials, and more particularly, to direct torque path differentials with carrierless pinions. Background technique [0002] Machines such as wheel loaders and haul trucks often include a drivetrain that powers the machine's traction device. A powertrain is made up of at least three distinct elements, including a power source (eg, an engine), a transmission driven by the power source, and a differential that distributes power from the transmission between pairs of traction devices. Differentials allow pairs of traction units to be driven at different speeds to accommodate the rotation of the machine. [0003] The differential usually consists of the main pinion, which is driven by the variator to rotate the crown gear. The carrier housing is fixed for rotation with the crown gear and includes two or more (eg four) different carrier pinions located around the circumference of the carrier housing. A car...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H48/40F16H48/08F16H55/17F16H57/04
CPCF16H48/08F16H48/40F16H55/17F16H57/0424F16H57/0482F16H2048/087F16H57/04F16H57/0483
Inventor O·J·阿卓娜D·O·汤普森
Owner CATERPILLAR INC