Mechanical Machines/Dredgers TRIZ Cases

Measured torque feedback helps excavators adapt trajectories to changing forces.

A work machine gradually reduces flow-valve switching to balance hydraulic pressure and enable precise, smooth quick-coupler uncoupling.

Modular pump vessels use articulating pipes, submersible pumps, and telescoping booms to adapt sediment discharge to uneven seabeds.

This case combines a unified hand grip for differential steering with scissor-linkage arms for higher-elevation material handling.

Inclined guide flaps bear against trench faces to prevent frame deflection, reducing trench damage and concrete overconsumption.

This mining shovel dipper door latch uses a roller to ease engagement and reduce wear, extending latch service life.

This case shows how ground-engagement modes modify actuator commands to enforce minimum turn radii and reduce turf disturbance.

A holding-pressure map uses attachment weight to set valve opening, keeping excavator boom lowering stable as tools change.

Load cells and sensors track force, inclination, acceleration, and wind to update the excavation machine’s barycentre and stability.

One-pass cold scarification recycles milled asphalt for compact road repair.

Sensors track which steering member was operated last, enabling route maintenance without interfering with manual control.

Discrete instability ranges obscure threshold proximity; continuous visual, auditory, or tactile feedback improves excavator operation.

Hydraulic positioning lets one grading attachment distribute large material heaps, then switch to fine grading around obstacles.

A complemented map links manipulated variables with work-device speed, extending control beyond measured limits for faster target tracking.

A projecting chassis portion places the sensor above the boom, preserving perception while limiting dust exposure.

The controller moves discharge positions and maintains bucket angle to distribute excavated material evenly across the dump-truck vessel.

An electric motor, speed reducer, and swing bracket provide an alternative boom-swing drive for construction machines.

Aperture-mounted adapters and locking fasteners separate dipper tooling wear components, reducing maintenance downtime.

This case uses a torque-producing electric motor and swing bracket to replace hydraulic boom swinging in construction machines.

Hydraulic actuators shift the screw-ring assembly to reposition the center of gravity and help prevent rollover on rough terrain.

A cast bucket corner uses parallel GET surfaces and a boss to limit reaction forces, avoid welding, and improve durability.

This case renews ground moving part wear resistance by comparing 3D scans and depositing protection only on worn areas.

Position, azimuth, and travel direction data drive path generation and steering control, reducing manual input during grading.

GNSS and implement sensors guide hydraulic blade corrections to preserve desired cross slope, mainfall slope, and depth over uneven terrain.

A rotating security component and sliding contact prevent accidental tool release while simplifying quick coupler maintenance.

Acceleration and hydraulic-pressure sensing estimate cumulative implement wear, helping identify looseness before maintenance is overlooked.

Multiple bracket recesses and securing pins switch the bucket between scraping and load-transport orientations without hardware changes.

Surface-follow control helps excavator tools track work paths with less joystick complexity.

The control system selects a design surface by distance, adjusts the tilt axis, and displays the target distinctly for faster alignment.

A controller cuts actuator power before initialization, replacing hydraulic enablement valves to simplify the electrohydraulic machine.

Scanning helps loaders find dumping positions despite bucket-obstructed stockpile visibility.

Sensors detect dumping and keep boom and bucket reference points below a safe height before vehicle motion resumes.

Pressure and posture sensors record compaction force by position, selecting maximum values for accurate compaction-state management.

Bucket-motion detection lowers engine speed and wheel torque during loading, reducing tire wear, fuel use, and mechanical stress.

Interlocking end teeth simplify wheel replacement while transferring high cutter forces and torque.

A semi-closed loop uses surface water injection, redundant pressure silos, and dewatering to avoid deep-sea pumps and ease maintenance.

Automated auxiliary-circuit depressurization prevents pressure damage during tool coupling.

Grooves guide welding material in work implement liners, preserving weld integrity and simplifying worn-unit replacement.

Switchable hydraulic cushioning protects dozer components during blade impacts.

This case uses specific front and rear dipper lip angles to reduce heel wear, improve digging performance, and extend service life.

This case maps bucket shape to center-of-gravity position, improving shovel load weight calculations without direct gravity measurement.

Weight, volume, and moisture measurements guide drying-agent addition and mixing to convert wet vacuum-tank spoils into solid batches.

Sensors and predefined operation forms select correction control, reducing excessive excavation and soil transport errors.

This case uses spacers to reposition the fulcrum and vary latch overlap, restoring bucket door locking reliability as wear develops.

A hydraulic-mechanical valve keeps quick-change coupling operable after hydraulic pressure loss.

A controller switches differently shaped bucket parts between excavation and compaction trajectories, reducing manual mode changes.

A semi-closed seawater loop uses surface water injection and a high-pressure silo to lift ore while simplifying maintenance.

Alternating walls shield joint power transmission from dirt and enable impact cleaning.

A processor combines bucket shape data, bucket angle, and excavated material weight to calculate repose angle and optimize haul loading.

Distance sensing automates machine, boom, and bucket movements for consistent dumping while avoiding tunnel walls and roofs.