Cranes TRIZ Cases

Interconnection members maintain connector alignment during welding, preventing thermal strain misalignment and reducing equipment complexity.

Segmenting the boom allows a guyed inner section to support loads while a tapered outer bending beam reduces overall height and weight.

A crane jib profile shape combines arcuate and straight sections to enable reliable longitudinal welding without edge preparation.

Electric motor drives screw mechanism to insert fixing pins, eliminating hydraulic viscosity issues in low temperatures.

An automated winch lifts the structural frame from a horizontal transport position to a vertical operational stance, eliminating manual securing pins.

A crane control system reduces parameter change speed before reaching safe working load limits.

A combined counterweight hitching device uses a spherical hinge to connect the piston rod and hitching platform.

Multiple counterweight attaching positions on a crane swiveling body allow selective attachment to change moment without increasing total vehicle weight.

Electrodynamically controlled slewing gear brake adapts torque via electric motor operation, preventing auto-rotation under wind loads.

A mobile lift crane adjusts counterweight position along a lattice mast to balance loads without ground support.

Electronic inclination sensors and processing units regulate electro-hydraulic outriggers to stabilize work machines.

Segmented part-jibs with flexural connectors increase the area moment of inertia, eliminating separate anchoring supports and reducing assembly time.

Lowering the mast aligns the lower spreader with the fixed retainer, eliminating manual position adjustment during attachment.

An automated tensioning device adjusts distributor cable force using a motor and proximity sensor to maintain carriage position.

A hybrid crane carrier uses adjustable wheels and a low-mounted engine to improve mobility.

Angled frame chords redirect transverse forces into longitudinal compression, preventing structural damage during adverse motion.

A convex roller disperses loads on a telescopic boom lower plate, preventing deformation from self-weight and vibration.

An auxiliary cylinder apparatus uses an angle detector and expansion controller to manage fixing states during vertical posture adjustments.

Box-section lattice booms dissipate joint loads into top chords, reducing weight while maintaining structural integrity.

Radial connectors eliminate orthogonal pipes to preserve triangular lattice continuity, suppressing strength loss while reducing weight and manufacturing time.

Inclined gantry legs counteract boom horizontal forces on a circular turret, reducing upperstructure mass and torsion.

A jib attachment mechanism uses a luffing cylinder to guide and lock the support structure.

Position adjusting and holding unit aligns the second link rotational axis with the jib foot, eliminating auxiliary crane requirements during attachment.

A ring derrick uses a stationary counterweight to manage boom loads via a tension column.

Replacing the fixed guide profile head with an extended guide frame allows variable boom lengths, reducing material usage and cylinder weight.

Dividing the counter-jib spire into three articulated trusses resolves the trade-off between structural strength and assembly ease in heavy tower crane designs.

A crane post driving device rotates the rear post using a link mechanism to enable self-service positioning.

Segmented partial plates with interlocking projections reduce transport logistics complexity while maintaining structural integrity.

Segmenting the A-frame reduces transport weight while keeping sensitive components protected on the superstructure.

A crane boom connecting device uses a pin and recess system to join structural sections directly on end faces.

Strain gauges on crawler frames detect turning-over moments, enabling safe assembly without complex operator input.

Segmented boom and counterweight units with moveable ground engaging members resolve the trade-off between heavy lift capacity and operational mobility.

A mobile crane counterweight device uses a pivoting support system on a base plate to adjust positioning and secure attachment.

Parallel bolts engage a curve-shaped recess in the counterweight plate to secure it automatically, eliminating complex manual bolting during ballasting.

Guide pins on the carrier plate engage undercarriage edges to eliminate welding complexity and projecting edges during operation.

Multi-raceway surfaces guide the roller to align the fixing pin, resolving deflection issues that prevent reliable jib storage.

A stepladder-mounted crane boom assembly lifts heavy air conditioner compressor units using a winch mechanism attached to standard ladder rungs.

A movable counterweight unit travels along a crane rotating bed to balance load moments, eliminating fixed mast structures and reducing ground reactions.

A telescopic boom coupling region enables direct guying equipment transfer between transport units and the crane structure.

A modular vehicle crane uses a detachable attachment superstructure with auxiliary supports to distribute counterweight loads flexibly.

A crawler crane camera system detects relative ballast positions to eliminate rigid connection constraints and enable independent wagon movement.

A crane structure with a stay member moves a wire pulley along a straight line, resolving the need for multiple adjustments to position loads horizontally.

Segmented stabilizer pads use intermediary lifting components to simplify handling, while standardized stacking features maintain surface integrity.

Luffing aid device distributes raising torque to prevent bracing overload during heavy boom operations.

Hybrid composite segments and metal guide blocks reduce arm weight while maintaining load-bearing capacity.

Asymmetric outriggers eliminate torque in the middle section while maintaining an enlarged support base for crawler-mounted cranes.

Segmenting the jib into a rigid inner bending beam and an articulated outer guyed section reduces assembly weights while maintaining static stability.

Integrating rotation angle sensors into crane pivot bearing points detects angular positions without external magnetostrictive components.

A mobile crane hoist rope drives a connecting rod assembly to erect the lower luffing support.

A tower crane trolley and hook block structural unit locks automatically via holding means during transport.