Gearing TRIZ Cases

Strain wave gear merges manual and electric inputs into one compact unit, eliminating torque sensors and reducing mechanical complexity.

Optimizing gap clearance per pulley tooth count reduces structure-borne noise by 5.2 dB in high-ratio drives.

A crank mechanism uses a cup-shaped recess to secure a semi-spherical bearing for pivoting motion.

Segmenting rotation into deployment and control stages resolves the speed versus precision trade-off using dynamic gear ratio switching.

Replacing centrifugal actuation with an electric motor decouples drive ratio from engine speed, reducing fuel consumption and noise at cruising speeds.

Vacuum generator extracts excess lubricant from injection moulding machine joints via air gap, preventing seal wear and improving cooling efficiency.

Segmented coaxial drives with a dynamic brake ensure landing gear deployment during main power failure or mechanical jam.

Lateral threaded coupling enables stepless positioning of pivotable arms, resolving inaccessibility and fastening reliability issues.

A supplemental wave spring exerts targeted axial force to counteract hub loads, preventing tensioner arm cocking and reducing bushing wear.

A curved spindle rail guide moves a vehicle seat along an arc to enable diagonal positioning, eliminating separate height and inclination mechanisms.

Enclosed cooling apparatus directs exhaust away from engine components, preventing particulate contamination while maintaining thermal stability.

A linear drive mechanism converts actuator motion into rotary force to shape aircraft wing skins.

A work vehicle detects drive belt wear by monitoring engine rotational speed against a permissible range defined by vehicle speed.

Curved inner link plate back faces minimize contact area with chain guides to lower friction loss in silent chain transmissions.

Segmented resilient retaining ring prevents lead screw escape under excessive torsion, resolving stress concentration and operational safety risks.

Magnetic repulsion between a securing ring and rotating disk maintains shaft rotation, ensuring electricity generation when vehicle stops or wind speed drops.

A guide cam assembly controls piston stem motion to define substantially linear movement along the cylinder axis.

Asymmetric inlet and outlet placement minimizes nut diameter and mounting hole depth, resolving structural weakness in small specification ball screws.

An additional series component reduces circulating current spikes during pulse pauses, minimizing electric noise and resonance oscillations.

Relocating the oil reservoir chamber to the tensioner housing reduces overall size while maintaining sufficient oil supply after long stops.

Integrating the wear adjuster and force generating device into a common housing eliminates external linkage mechanisms that complicate force measurement.

Dynamic control gain prevents pressure hunting in belt-driven CVTs by adjusting feeding and discharging valves based on oil temperature.

A torque motor directly drives the flywheel in a pilger rolling mill to convert rotary motion into precise roll stand displacement.

Segmenting the guide tube into a separate bushing absorbs transverse forces without increasing housing complexity or production costs.

A spindle drive gearing arrangement distributes bearing forces through a unified gear housing and holder structure.

Deflectable armplate provides axial clamping force for pivot arm alignment while isolating the round wire spring from compression.

Micron-scale dimples on steel pulley discs increase the coefficient of friction in belt-and-pulley continuously variable transmissions.

A linear transmission lubrication unit uses inertial force to displace a block and squeeze lubricant into the moving member during operation.

Inverting the wave generator outside the flex spline reduces axial size while maintaining layout flexibility for compact mobile robot applications.

Segmented spring segments engage a polymeric bushing plate to generate frictional torque, preventing sudden belt tension increases from throwing the arm off.

A cam drum rotor transmission adjusts reciprocation speed via pulley swapping to manufacture disposable wearable articles of varying sizes.

An adjustable bracket assembly uses a pivoting arm and rotatable insert to tension a stretch fit belt, eliminating specialized tools during installation.

A hybrid powertrain enables operator-selectable electric propulsion by placing the transmission in a neutral state to disconnect the engine from the wheels.

Separate slack and tight side hydraulic tensioners dampen force fluctuations to reduce average chain tension and drive resistance.

Segmented locking elements protect movement threads from impact forces while eliminating custom manufacturing costs.

Rotatable and translatable base plate resolves manufacturing misalignment in escalator handrail tension devices, extending belt lifespan.

Segmented retention rings provide axial and radial interference fit to prevent cyclical separation of cushion rings, reducing noise and vibration.

Non-cylindrical pivot pin surface guides assembly while preventing looseness, reducing wear and breakage in chain tensioners.

Variable bearing raceway diameters in an actuator ball screw reduce deflection and extend lifecycle by distributing loads more evenly.

A belt tensioning device uses pivotable arms supported by springs to maintain consistent drive belt tension.

Concave external teeth enable passing-type meshing that reduces rim bending stress and improves lubrication in negative-deflection strain wave gears.

A dialing mechanism converts arc motion into linear displacement to disengage a worm gear assembly from a lead screw shaft.

Fast Fourier transform analysis of sensor signals enables dynamic clamping pressure adjustment, reducing macro-slip and improving torque transfer reliability.

A tensioning rail pressure body features a channel device on its pressing surface to manage fluid flow between components.

A belt tensioner sensor detects pivot arm position to alert drivers of excessive stretch or misalignment before failure occurs.

A linear actuator back fixture uses a plastic bearing to secure parts and reduce friction during installation.

A continuous variable valve duration apparatus adjusts opening duration via a screw shaft and cam lifter mechanism.

Asymmetric oval inner link plates reduce guide contact area in roller chains, lowering frictional losses while maintaining rupture strength.

Drive chain conveys fluid to snubber channels, eliminating engine load from lubrication.

Angled deflector guide portions prevent radial dislodgement from centrifugal force, eliminating high-precision surface finishing requirements.