Rail-Engaging Wheels TRIZ Cases

An integrated mechanical probe measures crane wheel wear without disassembly, cutting inspection effort while supporting predictive maintenance.

A curved wheel web with angled rim and hub junctions improves heat evacuation during braking, reducing throw and residual stress.

Alternating thick and thin spokes keep molten steel feeding the rim during casting, reducing wheel weight, material use, and machining time.

Wheel-speed ratio sensing identifies whether a tube rail cart is on rails, flat ground, or in transition to block unsafe lift operation.

A segmented hollow wheelset shaft uses fluid pressure, valves, and sensors to cut mass, reduce material waste, and detect axle damage early.

Rotatable wheel carriers let the shuttle move between horizontal and vertical rails without elevator transfers, easing switching congestion.

A steel wear guide with a polymer spacer limits brake beam lateral movement, reducing misalignment, uneven brake shoe wear, and guide failure.

Relative movement sensing detects rail curves to trigger targeted lubrication or conditioning, cutting media use while maintaining traction and wear control.

An inclined linear web center line resists braking-driven rim displacement and eases thermal stress concentration in railway wheels.

By limiting pro-eutectoid cementite with Al and Nb alloying, this case improves railway wheel wear resistance while preserving toughness.

Separate press-fit linking elements simplify rail wheel brake ring production while preserving cooling, secure attachment, and radial expansion.

A guide rail and moving brake clamp enable wide lateral adjustment for gauge-changing rail vehicles while keeping braking stable.

An inclined web center line and tapered thickness reduce braking-induced rim shift and thermal stress in railway wheels.

Direct pin-to-flute engagement simplifies gauge changing, improving locking reliability and wheel movement between standard and wide rails.

A lateral pushing device readjusts wheelset position across unlocking and locking sections to cut friction and prevent gauge-change jamming.

Exterior locking and spline coupling enable rail gauge change without bulky axle sleeves, preserving motor space and simplifying vehicle retrofit.

Shaped elements lock elastic bodies against circumferential slip, cutting pre-tension and radial stiffness while preserving torque transfer.

Controlled zone cooling above Acm suppresses quenched layers and pro-eutectoid cementite in railway wheels while preserving wear resistance.

An onboard electromagnet and locking pin unlock and relock variable-gauge wheels without ground equipment, improving change efficiency and reliability.

Ductile metal ion films and heated-air injection protect wheel-rail friction zones from mechanical and hydrogen wear across all seasons.

Preloaded segmented dampers improve wheel-rim contact, broad-band vibration damping, and noise reduction despite wear and mounting tolerances.

A support-mounted mechanical gauge measures crane wheel wear without disassembly, enabling predictive maintenance with low inspection effort.

Retractable support arms let the vehicle avoid rail attachments while active and support wheels maintain contact for propulsion on conventional tracks.

Segmented modular bodies eliminate device variety complexity by adapting to different shaft lengths while ensuring efficient water drainage.

Composite elastomeric mat and rigid housing absorb collision kinetic energy to prevent direct contact with the wheelset shaft, reducing maintenance costs.

A multi-layered cardboard wheel structure combines high and low density sheets to support rider weight while maintaining structural integrity.

Segmented radial zones in the brake disc reduce fastener stress from thermal deformation while maintaining torque transmission.

A rail wheel tread with a cylindrical contour section reduces equivalent conicity increase and extends re-profiling intervals.

Segmented wheel ribs bolted to a body enable independent rib replacement, eliminating full wheelset removal and reducing maintenance downtime.

Liquid flow between chambers reduces wheel and rail abrasion during curve running while maintaining straight-line stability.

Segmented viscoelastic strip on railway wheel periphery reduces squeaking across wide frequency range by addressing low and higher-order vibration modes.

Segmented dynamic vibration absorbers in a groove reduce multi-frequency noise while preventing detachment.

Tin addition in the steel composition suppresses deep corrosion pits to maintain wear resistance while improving corrosion fatigue strength.

Interlocking guide means and receptacles in a segmented friction ring accommodate thermal expansion while preserving centering and braking efficiency.