The strength requirements of mooring winches include load-bearing capacity, durability, safety, protection, and the rationality of structural design. Its design and materials must have sufficient strength to withstand ship tension and harsh environments, ensuring stable operation without accidents. At the same time, the winch needs to have protective measures to prevent damage and corrosion, and to facilitate maintenance and repair.

When calculating the stress of the transmission device and other affected parts using the rated torque of the prime mover, the stressed parts

The stress should not exceed 40% of the material's yield limit.

When the prime mover operates at maximum torque under harsh working conditions, the stress on the affected parts should not be calculated

Exceeding 90% of the material yield limit.

The stress on the affected parts of the winch under the support load should not exceed 90% of the material yield limit.

The winch must be able to withstand the tension of the ship during mooring. This requires the structure and materials of the winch to have sufficient strength and stiffness to ensure that deformation or damage does not occur under the tension of the ship.

The winch must have sufficient safety and be able to maintain stability during use without any unexpected situations, such as sudden breakage or loss of control.

The structural design of the winch should be reasonable, able to meet usage needs and facilitate maintenance and repair.

Overall, the strength requirement for mooring winches is to ensure their safe and reliable completion of mooring operations and to maintain stability and durability over long periods of use.

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