High stability bridge crane

CN224493541UActive Publication Date: 2026-07-14JIANGSU HUACHENG INDAL

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: JIANGSU HUACHENG INDAL
Filing Date: 2025-07-04
Publication Date: 2026-07-14

AI Technical Summary

Technical Problem

Bridge cranes have insufficient stability during lifting operations, especially when braking, the inertia of the trolley causes the load to sway, affecting lifting accuracy and potentially causing safety accidents.

Method used

The system uses a PLC controller and frequency converter to drive the motor. The frequency converter adjusts the motor speed to achieve smooth deceleration. Combined with spring dampers and limit structures, the stability of the moving trolley is enhanced. The side beams adopt a composite structure to enhance bending and torsional stiffness. Ratchets and limit frames are used to prevent reverse sliding, and spring dampers are set to buffer the impact caused by speed changes.

Benefits of technology

It improves the stability and precision of hoisting, prevents heavy objects from swaying and slipping, and ensures the safety of the hoisting process.

✦ Generated by Eureka AI based on patent content.

Smart Images

Figure CN224493541U_ABST

Patent Text Reader

Abstract

The utility model discloses a kind of high-stability bridge cranes, including main support, the outer wall of main support is fixedly provided with PLC controller and two side beams are fixedly arranged on the upper end of main support, the upper end of two side beams is fixedly provided with guide slide rail, and the upper end of two guide slide rails is rotatably connected with two groups of synchronous pulleys, two groups of synchronous pulleys are fixedly installed on the both sides of moving trolley, the inside of moving trolley is fixedly provided with electrical control box, the inside of electrical control box is fixedly provided with frequency converter, the two drive motors of frequency converter and moving trolley upper end are electrically connected, the inside of moving trolley is fixedly provided with lifting motor, the output end of lifting motor is fixedly connected with winding frame, and traction chain is sleeved in winding frame, the one end of traction chain is fixedly connected with spring damper, the high stability of bridge crane to goods hoisting can be realized, and the sliding stability stability of moving trolley is improved.

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