Gearboxes TRIZ Cases

Ribs and contact projections in a plastic planetary gearset spread stress, cut noise, and support fast low-cost assembly.

Pre-assembled barrel assemblies with integrated bearings simplify steering gearbox alignment, cutting friction, noise, vibration, and assembly time.

Integrated stopper and rib features keep a transmission snap ring from rotating, simplifying disassembly while reducing extra parts and case processing.

Clamping the cast aluminum hollow body only at the internal tooth tip diameter avoids flank deformation while improving balancing and concentricity.

A bolt-connected internal column reinforces a lightweight reducer casing to cut vibration, limit deformation, and improve NVH.

A torsion-ring rocker latch secures a transmission vent for quick tool-free release while blocking moisture and impurities.

A high-speed motor plus speed-reducing transmission delivers 500–2,000 Nm at low speed in tight spaces, enabling hydraulic drive replacement.

An elastic cushion between the ring gear and casing cuts planetary gear vibration and 85-95 dB winch reducer noise.

Profile tip relief and helix relief concentrate gear contact pressure to cut sliding wear and improve high-torque gearbox efficiency.

Five planetary gearsets and seven selective couplers create at least nine forward and four reverse ratios with flexible torque transfer.

A pressure-sensitive recirculation circuit feeds ATS lubricant only when needed and shuts off during breaches to protect bearings and oil levels.

A deformed tab locked into a recess secures motor-to-gearbox joints against unscrewing without adhesives or welding in harsh conditions.

A case wall cover contains lubricating oil agitation around the transmission gear, cutting drive load and transmission loss at higher travel speeds.

A circuitous breather passage and larger rear communication hole let the gear case vent air while blocking oil leakage during machine tilt.

A coaxial vent on the input shaft uses centrifugal force and an ascending channel to keep oil out, reducing pressure buildup and clogging.

A one-sided input and motor layout around the reducer cuts radial size while allowing the output arm to rotate without range limits.

A stepped pin guide section preserves radial clearance during gearbox box assembly, preventing roller and inner ring scratches.

An openable coupling links twin-engine shafts so one engine can be isolated during faults or ground use, cutting fuel burn and complexity.

Rotating delivery and receiving components move lubricant between planetary stages with low leakage, simplifying gearbox lubrication.

Curved housing fins redirect axial airflow across the gearbox to improve heat dissipation while keeping the housing simple to produce.

A Lambda-shaped layshaft sets radial stage distance for grinding wheel access while keeping a turbine gearbox compact and lightweight.

A lifting apparatus and support members let crews remove and hold gearbox housing sections uptower without large ground cranes.

Guide walls and an oil catch member route scraped oil to the differential and bearing, improving lubrication without increasing oil volume.

Nested hollow and inner shift shafts separate gear selection from engagement, easing actuator packaging and electrical machine integration.

A slow-ratio rack-and-pinion with an augmented chain drive cuts bumpsteer during axle articulation while preserving quick steering response.

A closed gearbox breather uses a bladder canister to absorb air expansion and contraction while blocking moisture and contaminant ingress.

Selective clutching across shared planetary gearsets adds forward and reverse ratios while keeping the transmission compact and cost-aware.

A perpendicular motor with worm-helical gearing delivers strong steering torque feedback in steer-by-wire vehicles while cutting dashboard space and weight.

An oblique die-cast housing channel lets the ring gear project inward, cutting oil volume while keeping the geared motor compact.

Sequential drainage channels and retaining rings route oil to high-speed gearbox bearings, improving lubrication in low-temperature rail service.

A reed-valve vent in the transmission cover relieves crankcase and oil-tank pressure while preventing oil loss and wear.

Controlled venting through a pressure relief plug and internal air channels reduces gearbox oil leaks and blocks water ingress.

Integrated sun gear and planet carrier toothing transmits higher torque with lower material cost and better load-misalignment compensation.

Separating lubricating oil from high-speed bottom gears cuts churning loss and improves gearbox transmission efficiency in electric drives.

Steel sleeve reinforcement strengthens the forward piston area of a transmission input housing to prevent spline failure under higher torque.

Load-sensing gear shifts let this planetary winch run faster at light load and cut no-load energy use without complex hydraulic speed control.

Spring-loaded valves in the differential housing admit oil at low speed and block centrifugal oil ejection at high speed to maintain lubrication.

An integrated base-block flange cuts separate parts and axial length in steering speed reducers while preserving secure fastening.

A housing-mounted lubricant deflector captures dispersed oil and returns it to shaft bearings, reducing turbulence, churning loss, and seal wear.

A movable idler carrier adjusts the third gear axis for different ratios while keeping the housing center distance standardized and wear-resistant.

An oil scraper on the housing collects oil from the rotating planet carrier to keep wind gearbox bearings lubricated even during idling.

A hollow sun gear and spline-coupled planetary carrier shrink wind gearbox size and weight while simplifying machining and assembly.

A detachable nested housing cover seals the shaft opening during conveyance, blocking dust without adding separate sealing parts.

A direct-drive first stage and geared second stage cut load-dependent losses, balance gear wear, and keep torque transfer efficient.

A toothed shaft and nested collars lock the drivetrain from outside the gearbox, preserving sealing and preventing corrosion and foreign object damage.

Two electric motors and an epicyclic gear hold aircraft generator speed constant while avoiding hydraulic leaks, friction, and pressure losses.

External fluid-pressure locking mechanisms keep a two-stage planetary gearbox dry, improving braking, efficiency, and maintenance access.

A relocated lubricant path outside the pin shafts cuts carrier stress concentration, improves fatigue life, and supports higher wind gearbox loads.

By supporting the intermediate gear on a fixed block, this case reduces speed reducer axial thickness and suppresses output gear rattling.

A divided carrier and sun-gear-overlapping bearing boss improve output shaft rigidity, shorten axial length, and maintain lubrication.