1. Windproof performance in weak wind environment
In weak wind environment, for example, when the wind force level is 3-4 (wind speed 3.4-7.9 m/s), the windproof device of Electric Single Girder Overhead Crane mainly plays the role of stabilizing the position of the crane and preventing it from shaking or displacing slightly due to the breeze. Common windproof track clamps, anchoring devices, etc. can effectively increase the friction or connection force between the crane and the track under such wind force. The track clamp clamps the track to keep the crane relatively still on the track. Even if there is a weak wind, it can ensure that the crane will not move significantly, ensuring the safety and accuracy of the operation. At this time, the effectiveness of the windproof device is reflected in maintaining the initial parking position of the crane, avoiding potential damage to the crane structure and surrounding facilities due to frequent small displacements, and ensuring the accurate placement of the hoisted items.
2. Windproof performance in moderate wind environment
When the wind force reaches level 5-6 (wind speed 8.0-13.8 m/s), that is, in a moderate wind environment, the windproof device faces a greater test. Windproof devices need to withstand greater wind loads and effectively disperse and resist them. For Electric Single Girder Overhead Crane, devices such as automatic windproof iron wedges begin to play a key role. Under the action of wind, these devices will further tighten the connection with the track and use their own mechanical structure to lock the crane firmly on the track. At the same time, the windproof cables equipped on some cranes will also share part of the wind force and work together with track clamps to resist the force of the wind. Under such wind conditions, the effectiveness of the windproof device is manifested in the ability to withstand a certain intensity of wind pressure, prevent the crane from slipping or tilting to a large extent, ensure that the crane will not deviate from the normal operating track due to wind interference during operation, maintain its stable operation in the working area, and protect the structural integrity of the crane itself and the safety of surrounding personnel and equipment.
3. Protection capability in strong wind environment
In a strong wind environment, when the wind force is 7-9 (wind speed 13.9-24.4 m/s) or even higher, the effectiveness of the windproof device of the Electric Single Girder Overhead Crane becomes a key factor in ensuring the safety of the equipment. At this time, high-strength windproof equipment such as heavy-duty rail clamps and windproof anchors are fully operational. The clamping force of the rail clamp is greatly increased, and it is driven by hydraulic or electric means to tightly bite the track, so that the friction between it and the track reaches the maximum level to resist the huge thrust generated by strong winds. The windproof anchor provides additional anchoring force for the crane through a firm connection with the ground, forming a stable structure with multiple points of support. Under strong wind attacks, effective windproof devices can prevent the crane from being blown off the track or tipping over. Although the crane may not be able to operate normally under such extreme wind force, the existence of windproof devices ensures that the equipment can still maintain basic intact condition after the strong wind, reducing the huge maintenance costs and long-term downtime losses caused by strong wind damage.
4. Factors affecting the effectiveness of windproof devices and countermeasures
However, the effectiveness of the Electric Single Girder Overhead Crane windproof device under different wind forces is not absolutely fixed, and is also affected by many factors. For example, the daily maintenance of the windproof device is directly related to its performance at critical moments. If the clamping part of the track clamp is rusted and worn due to long-term uncleaning, the clamping force will be reduced, affecting the wind protection effect. In addition, the flatness and cleanliness of the track and the parking position of the crane will also affect the effectiveness of the wind protection device. In order to ensure that the wind protection device always maintains good effectiveness under various wind forces, it is necessary to regularly conduct comprehensive inspections, maintenance and maintenance of the wind protection device, timely clean up track debris, and repair or replace worn parts; at the same time, when designing and installing the crane, it is necessary to fully consider the local wind characteristics and operating environment, reasonably select and configure the wind protection device, and strictly follow the relevant standards and specifications for construction to ensure the compatibility and synergy between the wind protection device and the overall structure of the crane, so as to maximize its protection capabilities under different wind forces and ensure the safe and stable operation of the Electric Single Girder Overhead Crane.
