Discussion on the design and application of door hinge for over-current metering box
With the rapid development of the power industry, the anti-overcurrent metering box, as an important part of the power grid system, plays a vital role in ensuring the normal operation of power equipment. One of the small parts, the door hinge, directly affects the safety and stability of the whole system.
First, the function and characteristics of the hinge of the anti-overflow metering box door
1. Function: The door hinge is one of the key components connecting the door panel and the box body of the over-current metering box, and its main function is to make the door open and close flexibly and maintain a stable supporting state.
2. Features:
(1) High strength: In order to withstand the pressure caused by frequent switching and long-term use, high-strength materials need to be selected.
(2) Good corrosion resistance: Considering the influence of external environment, such as rain erosion, the door hinge is required to have good corrosion resistance;
(3) Good sealing: prevent dust from entering and affect the normal use of electrical components;
Second, the analysis of design points
1. Material selection
At present, the commonly used materials in the market are stainless steel and aluminum alloy, which not only have high strength and toughness, but also have excellent corrosion resistance. Among them, 304 or 316L stainless steel is widely used in practical production because of its excellent corrosion resistance.
2. Structural optimization
For the structure, a reasonable size ratio is helpful to improve the overall stability and service life. For example, by increasing the wall thickness to enhance the bearing capacity; Adopt integral molding technology to avoid weak links at weld; In addition, it can be considered to add damping devices to reduce the impact sound when closing the door.
3. Installation method
Generally speaking, there are two installation methods to choose from: one is to fix it directly on the outer surface of the door; The second is the built-in type, that is, it is hidden and positioned by using the internal space. The two schemes have their own advantages and disadvantages. The former is easy to maintain but slightly less beautiful. The latter is more hidden and neat, but it increases the difficulty of construction.
III. Conclusion
To sum up, although the door hinge of the anti-overflow metering box is a small accessory, it has a significant impact on the quality of the whole product. Therefore, it is necessary to carefully consider all indicators when selecting and designing, and take corresponding measures in combination with the actual situation to ensure that the products achieve the best results!
Rec. Prods.
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