With the continuous development of society, people’s needs continue to increase. In order to meet people’s growing production and life needs, many mechanical equipment has emerged. commercial lifts elevators are one of them. However, there are many types of freight elevators, such as guide rails. The freight elevator is one of them. Today, we will mainly learn about the safety protection measures of commercial lifts elevators.
In fact, for commercial lifts elevators, as a manufacturer, we are most concerned about the quality of the elevator, and more importantly, the safety. Because large equipment such as commercial lifts elevators can carry people and goods, the load and lift are very large. Therefore, in order to ensure the safety of transporting people, there are the following measures for commercial lifts elevators:
- commercial lifts elevatorsinterrupted chain protection measures: the lifting chain is a double chain, one of which will not be dangerous; and it has a broken chain to protect the wire rope, when the chain is broken by accident, the wire rope will bear the load. , Plays the role of double insurance.
- commercial lifts elevators overload protection measures: the hydraulic pump station has a safety valve overflow valve. When the overflow pressure is adjusted to the pressure of the maximum load, if the load is overloaded, the overflow valve will open, and the elevator will not rise; only after part of the load is unloaded, the overflow valve will close and the elevator will rise; This effectively avoids damage to the main structure and main components of the freight elevator due to overload. During the ascent process, when the cargo and the hoistway are stuck due to operating errors, the overflow valve will also automatically open, which can avoid damage to the elevator and main components caused by operating errors, and protect the safe use of the elevator.
- Emergency measures for power failure: The hydraulic pump station is equipped with a manual unloading valve. When the power is suddenly cut off, the unloading valve can be opened by hand to make the main table fall back to the ground from the middle position.
- Door machine linkage function: Only when the main table is raised to which floor, the door of that floor can be opened; if the main table is not on this floor, the door of that floor cannot be opened. This can avoid accidents caused by personnel entering the hoistway by mistake.
- The maintenance principles are different in winter and summer, and the methods are also different, which mainly depends on the material of the rail-type lifting freight elevator and the hydraulic oil selection of the hydraulic lifting platform.
- First of all, what should be paid attention to in the choice of material. For the rail-type elevator freight elevator that adapts to cold weather, we should increase the hardness of the steel appropriately, and the expansion coefficient is not easy to change too much. This is the first issue to be considered before choosing the production of rail-mounted freight elevators. For the rail-type elevator freight elevators used in the north, sometimes it will be about minus 30 degrees in cold seasons, and about 30 degrees in summer, with a temperature difference of 60 degrees. Such a large change in temperature difference, if the material selection is not good, it will give the rail elevator The use of this brings serious safety problems.
- Secondly, we have to replace the hydraulic oil according to the seasonal changes in time. Rail-mounted freight elevators, mobile elevators, and fixed scissor-type lifting platforms use different hydraulic oils in different seasons. This is the principle that any equipment first follows. We should not increase the use and maintenance obstacles artificially. There is no antifreeze for hydraulic oil in summer, and antifreeze must be added to hydraulic oil in winter. This is the basic common sense of hydraulic oil. According to different places, there may be more stringent requirements for hydraulic oil and special requirements for materials.
- The manufacturer of commercial lifts elevatorsreminds us that we must clean the hydraulic cylinder in time, especially whether the hydraulic cylinder is leaking oil, whether the connecting parts are operating normally, these should not be ignored during the use process, and we often use commercial lifts elevators.