How to use wire rope electric hoist on construction site?

How to use wire rope electric hoist on construction site?

On construction site, efficiency and safety are the two core elements of construction. As an efficient and practical lifting equipment, wire rope electric hoist is gradually becoming an indispensable assistant on construction site. It is powered by electricity and can easily lift and carry heavy objects, which not only improves construction efficiency, but also significantly reduces the risk of manual operation. Today, let's take a deep look at the use, precautions and practical application scenarios of wire rope electric hoist on construction site.

1. Installation method of wire rope electric hoist
Correct installation is the first step to ensure the safe operation of equipment. The following are the installation steps of wire rope electric hoist on construction site:
1. Select installation location
Wire rope electric hoist can be installed on I-beam alone or on cranes such as single beam, double beam, cantilever beam or gantry beam according to site requirements. The choice of installation location should ensure the stability of the equipment and avoid collision with surrounding obstacles.
2. Installation of main beam lifting ring
Depending on the structure of the hoist, two or four sets of lifting rings are usually required. During installation, ensure that the lifting ring is firm and reliable, and the tightness is appropriate to prevent the equipment from shaking during operation.
3. Keep it level
During installation, it is necessary to ensure that the wire rope electric hoist is on the same horizontal line as the object being installed. A triangle plate can be used to assist in adjustment to ensure smooth operation of the equipment.
4. Fix the trolley
Fix the manual trolley to the driving axle, and use cylindrical pins to ensure the stability of the trolley and cable slider. This step is crucial for the movement and positioning of the equipment.
5. Install the buffer
The built-in buffer is usually installed on the main beam of the crane, and can also be installed on the end cover or rail opening as needed. The function of the buffer is to reduce the impact force on the equipment during operation and extend the service life of the equipment.

2. Steps for using the wire rope electric hoist
After installation, the use of the equipment needs to be strictly in accordance with the specifications to ensure safety and efficiency.
1. No-load operation test
After initial installation or reassembly, a no-load operation test must be performed. Through no-load operation, check whether the components of the equipment are working properly to ensure that there is no abnormal noise or jamming.
2. Static load test
The static load test is carried out at 125% of the rated load, and the weight is lifted about 100 mm from the ground for 10 minutes. The purpose of this test is to check the stability of the equipment under overload conditions and ensure that the equipment will not fail in actual use.
3. Dynamic load test
Repeated lifting and moving tests are carried out at the rated load to ensure the reliability of the mechanical transmission, electrical parts and connection parts. The dynamic load test can simulate the actual working scene and further verify the performance of the equipment.
4. Operation specification
The workpiece is tied and hung firmly: When lifting heavy objects, it must be ensured that the workpiece is tied and hung firmly and stably.
Trial lifting inspection: First lift the weight slightly off the ground for trial lifting, and then officially lift it after confirming that there is no abnormality.
Overload is strictly prohibited: Strictly abide by the rated load of the equipment to avoid equipment damage or safety accidents caused by overload.
Avoid tilting and tilting: tilting and tilting may cause the equipment to be unbalanced and increase the risk of accidents.
Cut off the power supply after work is completed: After the work is completed, be sure to cut off the power supply and move the equipment to a fixed position to avoid accidents.
3. Maintenance and care of wire rope electric hoists
Regular maintenance and care are the key to extending the service life of the equipment and ensuring safe operation.
1. Regular inspection
Wire rope wear: Regularly check the wear of the wire rope to ensure that it meets the requirements of GB/T5972-1986 "Practical Specifications for Inspection and Scrapping of Wire Ropes for Hoisting Machinery".
Mechanical parts inspection: Check whether the mechanical parts of the equipment are loose or damaged, and repair or replace them in time.
2. Lubrication and maintenance
Keep sufficient lubricating oil: Ensure that the lubricating oil of the equipment is sufficient and clean to avoid wear of mechanical parts due to insufficient lubrication.
Regularly oil the wire rope: Lubrication of the wire rope can reduce friction and extend its service life.
3. Limit device inspection
Ensure that the upper and lower limit devices are flexible and reliable to avoid failure of the equipment when it is in the extreme position. The limit device is an important guarantee for the safe operation of the equipment and must be checked and calibrated regularly.

4. Practical application scenarios of wire rope electric hoists
On construction sites, wire rope electric hoists have a wide range of application scenarios. The following are some typical applications:
1. Lifting construction materials
Wire rope electric hoists can easily lift construction materials such as steel bars, steel plates, and concrete, greatly improving construction efficiency.
2. Installing mechanical equipment
When installing large equipment such as tower cranes and steel structures, wire rope electric hoists can provide precise lifting and positioning support.
3. Lifting and carrying heavy objects
In high-rise building construction, wire rope electric hoists can quickly transport materials to designated locations, reducing the time and risk of manual handling.
5. Precautions
1. Operator qualifications
The equipment should be operated by professionally trained personnel, and the operator must strictly abide by the safety operating procedures to ensure construction safety.
2. Environmental requirements
Avoid using the equipment on wet or rainy days. When used outdoors, a rain shelter must be provided to prevent the equipment from being damaged by moisture.
3. Safety distance
During lifting, it is strictly forbidden to pass the lifting objects over the heads of personnel to ensure the safety of personnel on the construction site.

Summary
As an efficient and practical lifting equipment, the wire rope electric hoist plays an important role in construction sites. Through reasonable installation, use and maintenance, it can not only improve construction efficiency, but also significantly reduce the incidence of safety accidents. Whether it is lifting construction materials, installing mechanical equipment, or lifting heavy objects, the wire rope electric hoist can provide reliable support for the construction team.