Power transmission mechanism for cranes

The power transmission mechanism for cranes, incorporating a generator unit, power battery, and electric motor, addresses the inefficiencies and pollution of direct drive systems by enhancing energy recovery and reducing fuel consumption, thereby improving operational efficiency and environmental sustainability.

JP3250718UActive Publication Date: 2025-03-25陈新
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Patent Information

Application Number
JP2025000238U
Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Priority Date
2024-05-11
Filing Date
2025-01-23
Publication Date
2025-03-25
Estimated Expiration
2035-01-23

AI Technical Summary

Technical Problem

Conventional crane power transmission mechanisms employ direct drive systems, resulting in low energy utilization efficiency and high environmental pollution.

Method used

A power transmission mechanism for cranes utilizing an electric power drive system, comprising a generator unit, a power battery, and an electric motor, where the generator unit converts mechanical energy into electrical energy, which is stored in the power battery and used to power the electric motor, thereby improving energy efficiency and reducing pollution.

Benefits of technology

The proposed mechanism significantly improves energy utilization efficiency by recovering energy during load lowering and reduces environmental pollution by minimizing fuel consumption and emissions, while also providing flexibility through external charging of the power battery.

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Abstract

To provide a power transmission mechanism for a crane that significantly improves energy efficiency and reduces environmental pollution. [Solution] The crane includes an engine 1, a generator unit 2, a power battery 3, and an electric motor 4, with the output end of the engine coaxially connected to the input end of the generator unit, driving the generator unit to generate electricity. The power battery is connected in parallel to the generator unit and stores the electricity generated by the generator unit. The output end of the power battery is connected to the input end of the electric motor, and the electric motor converts the electricity into mechanical energy to operate the crane. The engine drives the generator only when the power battery is low on electricity; the engine does not operate at other times, reducing fuel consumption. By using the generator unit and power battery in conjunction, energy can be recovered when lowering a suspended load.
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