The "Truss Precision Engine" for Transformer Lifting in Workshops: The Breakthrough Wisdom of the Tracked Truss Gantry Crane
In the transformer production workshop, oil-immersed transformers, weighing tens of tons and requiring strict millimeter-level alignment for lifting, compete with the limited space and tight production schedule. Rail-mounted Truss gantry cranes, leveraging the mechanics of truss structures, overcome these challenges of heavy, precise, and precise lifting, becoming the core hub for transformer assembly and delivery.
Technical Parameters:
| Lifting Capacity | 10-100 t (customized expansion) |
| Span | 10～25 m (including cantilever ≤5 m) |
| Lifting Height | 6～18m (hook to rail surface) |
| Lifting Speed | Full load 0.1～3m/min (variable frequency) |
| Work Duty | A 6～A 8 |
1.Truss Lattice Structure: Lightweight, Heavy-Duty, and Adaptable to Workshop Environments
The Truss gantry crane's main beam utilizes Q345B low-alloy, high-strength steel trusses. The triangular lattice structure breaks down loads into axial forces.
Lightweight Revolution: Its deadweight is 30% lower than box-type gantry cranes, significantly reducing the load burden on workshops and seamlessly adapting to older factories.
Modular Assembly: Members are quickly connected via pins, allowing for easy installation within the workshop, eliminating the need for large equipment to be brought in.
Space-Friendly: The hollow truss reduces visual obstruction, and with an operating speed of ≤1.5 m/s, it provides flexibility for workshop equipment layout.
Rail-Mounted Operation: Millimeter-Level Alignment, Taming Heavy Precision
Transformer hoisting requires minimal wiggle (impacting the oil pillow or bushing will result in scrap). The rail-mounted Truss gantry crane achieves breakthroughs with "track restraint + precise control":
Rail Anchoring: Customized P43/P50 rails achieve a straightness error of ≤2mm, minimizing the gantry crane's track deviation to ±3mm.
Synchronized Hoisting: Dual winches equipped with absolute encoders achieve a lifting height difference of ≤5mm, ensuring level lifting and lowering of the transformer.
Static Load Assurance: The outriggers automatically lock when unloaded, and the anti-tilt coefficient during hoisting is ≥1.5, allowing for smooth handling of minor floor subsidence in the workshop.