Gearing Details TRIZ Cases

A smaller-contact intermediate sliding member cuts frictional torque in toroidal CVT pressing parts, reducing hysteresis and size.

A two-piece eccentric planet carrier varies crank-pin offset under load to automatically balance ratchet speed and torque without manual reset.

Cast-in reinforcement member with lower thermal expansion maintains bearing seat diameter, preventing rotation and wear caused by mismatched material expansion.

A toothed wheel uses a radial retaining ring to constrain hub expansion during operation.

Three-point mounting minimizes gearbox case distortion, preventing gear misalignment and premature failure from high torque loads.

Recessed peripheral walls in the transmission case structure prevent belt contact with joining portions, resolving dimensional errors at the seam.

A stacked planetary gear carrier assembly integrates inner and outer spiders to reduce package size.

Axial shaft indentations engage sprocket keys to prevent bushing interference and leakage paths.

Segmented vent components and an impeller direct airflow while preventing lubricating fluid leakage from the transmission housing.

Adjustable trusses and mounting pads in a modular transmission support system eliminate custom fabrication needs while reducing noise and vibration.

A torque balancing differential mechanism allows split sun rolling elements to rotate at different speeds while applying equal torque.

Assembly device positions helical gears coaxially and rotates them to align teeth, preventing canting damage during worm drive formation.

A control system detects transmission lash by analyzing angular rotation differences between shafts to adjust engine torque.

Fine blanking produces aligned bores in planetary gear carriers while eliminating deburring costs and reducing wall thickness for higher torque transmission.

A wheel uses radially retractable arms to climb steps while maintaining a circular profile for stable flat ground travel.

A polymer outer gearbox housing integrates antimicrobial additives to reduce bacterial growth and food odor while maintaining structural rigidity.

Active vibration control actuators mounted to a gearbox flexible region counteract transmitted vibrations between power source and rotatable component.

Integrating the planet carrier and output gear into a single assembly simplifies tapered roller bearing setting to reduce noise, vibration, and harshness.

Segmented ring gear lugs absorb rotational forces, reducing excessive vibration transfer from the planetary gearset to the housing.

H-shaped riveting devices connect axially offset carrier shells to adjust axial distance for different planetary wheel widths.

A transmission double wall structure stabilizes seals through an intermediate region filled with air or filler material.

Braze retention features on sleeve members retain filler material adjacent to the assembly plane, eliminating complex pre-sintering machining steps.

Eccentric gear hub opening translates rotation center to establish predetermined backlash without complex alignment equipment.

A planet roller speed changer uses a geometrically shaped bushing to manage clearances between the carrier and rollers.

Segmenting the shaft into a hollow structure minimizes casting defects like porosity by allowing controlled solidification without internal feeders.