Views:3 Author:Site Editor Publish Time: 2017-12-29 Origin:Site
Mechanical equipment has rated life, but these are only as a reference data, if you take more to caress attentively in daily life the performance of the equipment will be beyond the prescribed service life, but if you often in daily life of equipment maintenance and operation more oversight, the equipment is likely to be ahead of aging well, understand electric hoist maintenance methods:
1. The electric hoist installed after the new installation or overhaul should be carried out the empty car trial several times. But before the installation is completed, do not pass the electric test.
2. Before normal use, 125% of the rated load shall be carried out, and the static load test shall be about 100 mm, 10 minutes from the ground, and check if it is normal.
3. The dynamic load test is to test the mechanical transmission part of the mechanical transmission part, the electrical part and the connecting part of the machine.
4. In use, it is absolutely prohibited to use in an environment that is not permitted, where the rated load exceeds the rated load and the rated closing times per hour (120 times).
5. Installation and maintenance, must strictly check whether the spacing device is flexible and reliable, when the hook rose to the limit position, hook enclosure to the drum shell of distance must be greater than 50 mm (10 t, 16 t, 20 t must be greater than 120 mm). When the hook is lowered to the lower limit position, the wire rope safety ring should be guaranteed. The effective safety circle must be above 2 laps.
6. It is not allowed to press two buttons to push the electric hoist in the opposite direction.
7. After the work is completed, the total brake of the power supply must be pulled off and the power supply will be cut off.
8. Electric calabash should be controlled by the special person, and the operator should fully grasp the safety operation rules, and it is strictly prohibited to slant.
9. In use, special personnel must be inspected regularly for the electric hoist, and timely measures are found and carefully recorded.
10. When adjusting the braking slip of electric hoist, it should be guaranteed that under the rated load, the braking slip amount of S is less than V/100(V is the distance that the load will rise steadily in the next minute).
11. Scrap standard of steel wire rope: the inspection and scrap standard of wire rope shall be carried out in accordance with CB/t5972-1986 "steel wire rope inspection and scrap code for hoisting machinery".
12. The electric gourd must be lubricated with sufficient lubricating oil and keep the lubricant clean and should not contain impurities and dirt.
13. The steel wire rope should be used with a hard brush or wood chip, and it is strictly prohibited to use hand to oil the working wire rope.
14. When the electric hoist does not work, it is not allowed to hang heavy objects in the air to prevent permanent deformation of the parts.
15. In the course of use, if the fault is found, the main power supply should be cut off immediately.
16. Special attention should be paid to vulnerable parts in use.
17.10 ~ 20 tons of gourd after long time continuous operation, automatic power outages may occur, this belongs to motor overheating protection function, can decline at this time, over a period of time, after waiting for motor cooling, can continue to work.