Mechanical Machines/Dredgers TRIZ Cases
- Pivoting Heel Shroud Assembly for Weld-Free Bucket Attachment
Pivoting locking arms and a resilient locator secure heel shrouds to excavator buckets without welding, easing removal and replacement.
- Hydraulic Excavator Work Implement Control by Detected Work Status
Missed manual switching can push an excavator beyond design surfaces; sensor-based work-status detection selects corrective assistance.
- Quick-Release Coupler Promontories for High-Force Tool Attachment
Promontories and matching notches reinforce a two-part quick-release coupler, helping excavator tools withstand high forces and resist wear.
- Dual-Frequency Laser Scanning for Construction Blade Control
High-frequency blade scans and lower-frequency area scans combine construction machine control with finished-work quality assessment.
- Debris-Resistant Quick-Release Coupler for Excavator Tool Locking
Front-edge notches and a spring-biased locking plate help keep earth or waste from causing imperfect locking in an excavator tool coupler.
- Quick Coupler Lever Locking for Secure Excavator Tool Attachment
A pivoting lever, tension springs, and locking means secure the journal in a quick coupler, helping prevent accidental tool detachment.
- Quick Coupler Lever Stop for Safe Bucket Locking
A rear stop limits lever travel so a construction-machine bucket stays coupled even if locking springs loosen or break.
- Work Tool Position Control for Automatic Thumb–Arm Clearance
A thumb position sensor and controller move the thumb before bucket motion to prevent contact damage to the work machine arm.
- Offset Box Trencher Design for Boundary-Adjacent Excavation
An offset box and chain guide let trenchers work near property lines while maintaining alignment and consistent material mixing.
- Boom-and-Arm Torque Compensation for Work Machine Load Weighing
Variable actuator pressure can distort load estimates; compensated boom torque accounts for arm centrifugal and inertial forces during motion.
- Pivotable Boom With Single Internal Lifting Cylinder
Two lateral lifting cylinders increase installation space and restrict attachment visibility; one internal cylinder provides a compact alternative.
- Power Transmission Coupling with Multi-Axis Self-Alignment
Guide and centering devices let a movable coupling part align across multiple degrees of freedom, enabling faster, lower-wear hydraulic and electrical connections.
- Excavator Upper-Body Rotation Detection With Dead-Zone Correction
Dead-zone detection replaces abnormal excavator sensor values with prior samples to improve upper-body rotation accuracy.
- Wheel Loader Automated Bucket Control for Even Platform Loading
Pressure and posture sensors help a wheel loader section the loading platform and distribute bucket material evenly with less operator input.
- Tool Rotator Bearing Layout for Compact Axial Packaging
See how separate radial and external-load bearings keep a tool rotator compact while protecting its internal electrical swivel and angle meter.
- Recessed Rotary Frame Structure for Grader Bending Strength
A recessed rotary ring with connecting pieces and a support base improves bending strength and fatigue resistance in grader frames.
- Articulable-Arm Pulveriser With Slide-Out Drive Unit
Variable crushing gaps can produce uneven output; segmented housing and a removable unitary drive improve serviceability.