What are the specifications for the use of wire rope electric hoist?

The advantages of wire rope electric hoist are small length and size, and the motor is installed in the drum.

The electric hoist has a compact structure. The electric hoist whose motor axis is perpendicular to the drum axis adopts worm gear transmission device. Its disadvantages are: large length, large width, bulky structure, low mechanical efficiency, difficult processing, etc. The hydraulic system is of dual control, and the overflow regulating valve and magnetic contact pressure gauge can control the pressure. The electrical control department has adopted low-voltage control to increase the dominance of the system. No manufacturer has produced products of this type of structure.

Structure and features: the machine adopts Mechatronics design. By changing different molds, different specifications of steel wire rope can be pressed. It is simple and safe to control. Its main disadvantages are poor premise of motor heat dissipation, poor grouping, convenient inspection, device and maintenance of motor, and complex power supply device. The electric hoist with the electric motor axis parallel to the drum axis has the advantages of small height and length. Its disadvantages are large width, poor grouping, and complex manufacturing and assembly.

Classification and description of wire rope electric hoist the components of wire rope electric hoist include: motor, transmission mechanism, drum and sprocket. It can be roughly divided into four types according to the different positions of motor and drum. The pressed steel wire rope has large tension, beautiful appearance and fast speed. It only takes a few minutes to crimp a set of steel wire rope, which greatly reduces the labor intensity and improves the work efficiency.

The electric hoist with the motor installed outside the drum has the advantages of good grouping, high generalization, easy to change the lifting height and convenient device inspection.

The use of electric hoists can be said to be very extensive, but there may be very few people who can correctly use the advantages of electric hoists in the price of Taiyuan electric hoists to operate. I suggest that you learn more about the characteristics of electric hoists and this knowledge, so that you can use electric hoists better.

1. for the electric hoist newly installed or installed after disassembly and inspection, the empty train test run shall be carried out for several times. However, before the installation is completed, do not power on for trial run.

2. before normal use, a static load test shall be carried out at 125% of the rated load and about 100 mm above the ground for 10 minutes to check whether it is normal.

3. the dynamic load test is to conduct repeated lifting and moving tests to the left and right based on the rated load weight. After the test, check whether the mechanical transmission part, electrical part and connecting part are normal and reliable.

4. during use, it is forbidden to use it in an impermissible environment or when the rated load and the rated switching times per hour (120 times) are exceeded.

5. during installation, commissioning and maintenance, strictly check whether the limit device is flexible and reliable. When the hook rises to the upper limit position, the distance from the hook shell to the drum shell must be greater than 50mm (10t, 16t, 20t must be greater than 120mm). When the hook is lowered to the lower limit position, the steel wire rope loop on the drum shall be ensured, and the effective loop must be more than 2 loops.

6. it is not allowed to press two manual switch buttons at the same time to make the electric hoist move in the opposite direction.

7. after the work is completed, the main switch of the power supply must be opened and the power supply must be cut off.

8. the electric hoist shall be operated by a specially assigned person. The operator shall fully master the operating procedures. It is strictly forbidden to pull or lift the hoist askew.

9. during use, special personnel must regularly inspect the electric hoist, take timely measures in case of any fault, and carefully record it.

10. when adjusting the braking sliding amount of electric hoist, ensure that the braking sliding amount s ≤ v/100 under rated load (V is the stable lifting distance within one minute under load).

11. scrapping standard of steel wire rope: the inspection and scrapping standard of steel wire rope shall be in accordance with cb/t5972-1986 code of practice for inspection and scrapping of steel wire rope for cranes.

12. the electric hoist must keep enough lubricating oil in use and keep the lubricating oil clean without impurities and dirt.

13. when oiling the steel wire rope, a hard brush or small wooden piece shall be used. It is strictly prohibited to oil the working steel wire rope directly by hand.

14. when the electric hoist is not working, it is not allowed to hang the heavy objects in the air to prevent parts from deformation.

15. in case of any fault during use, the main power supply shall be cut off immediately.

16. special attention shall be paid to the wearing parts during use.

17.10~20 ton hoist may be automatically powered off after long-term continuous operation, which belongs to the overheating protection function of the motor. At this time, it can be lowered. After a period of time, it can continue to work after the motor cools down.