一、电气成套设备的 “骨架”:隔板和导轨像橱柜的层板和挂杆
1、 The "skeleton" of electrical complete equipment: partitions and rails are like the shelves and hanging rods of cabinets
想象你家厨房的橱柜:层板要是薄了,放满锅碗瓢盆就会压弯;挂杆不结实,挂微波炉会掉下来。电气成套设备里的内部隔板和导轨,就相当于橱柜的层板和挂杆 —— 隔板分隔断路器、接触器这些 “电气家伙”,导轨固定它们的位置。当要装大型断路器、变压器这类 “重型设备” 时,它们能不能扛住?
Imagine the cabinets in your kitchen: if the shelves are too thin, they will bend when filled with pots, pans, and utensils; The hanging rod is not sturdy, and hanging the microwave will cause it to fall off. The internal partitions and guide rails in electrical equipment are equivalent to the shelves and hanging rods of cabinets - partitions separate the "electrical guys" such as circuit breakers and contactors, and guide rails fix their positions. When installing heavy equipment such as circuit breakers and transformers, can they withstand it?
二、材质选择:像挑扁担一样看 “硬度”
2、 Material selection: Look at "hardness" like carrying a pole
1. 冷轧钢板:常见的 “大力士”
1. Cold rolled steel plate: the most common "strongman"
特性:就像工地用的钢板,强度高、适中,常见厚度 1.2-2mm。2mm 厚的冷轧钢板隔板,能像挑夫挑重担一样,稳稳扛起 50-80 公斤的设备(相当于 2 台家用空调的重量)。
Features: Like steel plates used on construction sites, it has high strength and moderate price, with a common thickness of 1.2-2mm. The 2mm thick cold-rolled steel plate partition can steadily carry equipment weighing 50-80 kilograms (equivalent to the weight of two household air conditioners) like a carrier.
应用:多数工业配电箱的隔板用这种材质,比如工厂里控制电机的配电柜。
Application: Most industrial distribution boxes use this material for their partitions, such as the distribution cabinets that control motors in factories.
2. 不锈钢:耐腐蚀的 “特种兵”
2. Stainless steel: a corrosion-resistant "special forces"
优势:像厨房的不锈钢台面,不怕潮湿和腐蚀,厚度通常 1.5-2.5mm。某化工厂案例中,2.5mm 厚不锈钢隔板在酸性环境下,仍能支撑 100 公斤的防爆开关。
Advantages: Like stainless steel countertops in kitchens, they are not afraid of moisture and corrosion, with a thickness of usually 1.5-2.5mm. In a case study of a chemical plant, a 2.5mm thick stainless steel partition can still support a 100kg explosion-proof switch in acidic environments.
缺点:比冷轧钢板贵,但适合潮湿或有腐蚀性气体的车间。
Disadvantages: More expensive than cold-rolled steel plates, but suitable for workshops with humidity or corrosive gases.
3. 铝合金:轻量化的 “运动员”
3. Aluminum alloy: a lightweight "athlete"
特点:像自行车车架,重量轻但强度不差,常见厚度 2-3mm。3mm 厚铝合金导轨通过结构优化(如加筋设计),能卡住 20 公斤的接触器不松动。
Features: Like a bicycle frame, it is lightweight but strong, with a common thickness of 2-3mm. The 3mm thick aluminum alloy guide rail, through structural optimization (such as reinforced design), can hold a 20kg contactor without loosening.
适用场景:需要减轻设备重量的场合,比如移动发电车的电气柜。
Applicable scenarios: occasions where equipment weight needs to be reduced, such as the electrical cabinet of mobile power generation vehicles.
三、厚度秘密:多厚才算 “结实”?看设备重量选 “骨架”
3、 Thickness secret: how thick is "firm"? Select 'skeleton' based on the weight of the device
1. 轻型设备(≤10 公斤)
1. Light equipment (≤ 10 kg)
隔板厚度≥1mm 冷轧钢板,导轨用 1.5mm 铝合金即可。就像挂电风扇用薄铁片支架就行。
The thickness of the partition should be ≥ 1mm cold-rolled steel plate, and the guide rail should be made of 1.5mm aluminum alloy. Just like using a thin iron bracket to hang an electric fan.
2. 中型设备(10-50 公斤)
2. Medium sized equipment (10-50 kg)
隔板要≥1.5mm 冷轧钢板,导轨换成 2mm 厚不锈钢。类似挂液晶电视需要更厚的墙壁支架。
The partition should be made of cold-rolled steel plate with a thickness of ≥ 1.5mm, and the guide rail should be replaced with 2mm thick stainless steel. Similar to hanging LCD TVs, thicker wall brackets are required.
3. 重型设备(>50 公斤)
3. Heavy equipment (>50 kg)
必须用≥2mm 冷轧钢板或 2.5mm 不锈钢隔板,导轨得是 3mm 厚加筋设计。比如工厂里 60 公斤的变压器,需要像承重墙一样的 2.5mm 厚钢板隔板支撑。
Cold rolled steel plates of ≥ 2mm or stainless steel partitions of 2.5mm must be used, and the guide rails must be designed with 3mm thick reinforcement. For example, a 60 kilogram transformer in a factory requires a 2.5mm thick steel plate partition to support it like a load-bearing wall.
四、安装方式:像搭积木一样讲究 “稳固性”
4、 Installation method: Emphasize "stability" like building blocks
1. 螺栓固定:稳妥的 “硬连接”
1. Bolt fixation: the most secure "hard connection"
做法:隔板用 M6-M10 的螺栓(像粗筷子)固定在柜体上,导轨通过螺栓或焊接固定。某机械厂案例中,用 M8 螺栓固定的 2mm 钢板隔板,扛住了 80 公斤的启动器震动。
Method: The partition is fixed to the cabinet with M6-M10 bolts (like thick chopsticks), and the guide rail is fixed by bolts or welding. In a case study of a certain machinery factory, a 2mm steel plate partition fixed with M8 bolts withstood 80 kilograms of starter vibration.
关键:螺栓间距不能超过 20 厘米,否则像桌子腿太宽会晃。
Key: The distance between bolts should not exceed 20 centimeters, otherwise it may sway like a table leg that is too wide.
2. 卡槽 + 导轨组合:快速安装的 “乐高式”
2. Card slot+guide rail combination: a quick installation "Lego style"
原理:导轨像货架的挂杆,设备通过卡槽挂上去,隔板用锁扣固定。某自动化生产线的电气柜,用这种方式 30 分钟装完 10 台 30 公斤的变频器。
Principle: The guide rail is like a hanging rod on a supermarket shelf, and the equipment is hung up through a card slot. The partition is fixed with a lock buckle. The electrical cabinet of a certain automated production line can install 10 30 kilogram frequency converters in 30 minutes using this method.
承重技巧:卡槽必须是金属材质,深度≥1.5 厘米,防止设备 “滑出”。
Load bearing technique: The card slot must be made of metal material with a depth of ≥ 1.5 centimeters to prevent the equipment from slipping out.
3. 加强筋设计:给隔板 “加肋骨”
3. Reinforcement design: Adding ribs to the partition
做法:在隔板背面焊上条形钢板(加强筋),像纸箱加横梁更结实。某矿山设备的隔板加筋后,承重从 50 公斤提升到 120 公斤。
Method: Weld strip steel plates (reinforcing ribs) on the back of the partition, like a cardboard box with crossbeams, to make it more sturdy. After reinforcing the partition of a certain mining equipment, the load-bearing capacity increased from 50 kilograms to 120 kilograms.
实例:大型空压机的控制柜,隔板加筋后能放 100 公斤的配电柜。
Example: The control cabinet of a large air compressor can hold a 100kg distribution cabinet with reinforced partitions.
五、如何判断现有设备能否扛重型设备?叁招简单自测
5、 How to determine if existing equipment can carry heavy equipment? Three simple self tests
1. 敲一敲隔板
1. Knock on the partition
用手指敲隔板,声音沉闷的(如 2mm 钢板)比清脆的(1mm 钢板)更结实,像敲实心墙和空心墙的区别。
Knocking on the partition with your fingers produces a dull sound (such as 2mm steel plate) that is stronger than a crisp sound (1mm steel plate), like the difference between solid walls and hollow walls.
2. 看导轨固定孔
2. Check the fixing holes of the guide rail
固定孔直径≥6mm(能插筷子),且孔数每米≥4 个,说明能扛重设备,像大桥的桥墩孔多更稳。
The fixed hole diameter is ≥ 6mm (able to insert chopsticks), and the number of holes per meter is ≥ 4, indicating that it can carry heavy equipment, such as bridge piers with more stable holes.
3. 算设备重量分布
3. Calculate the weight distribution of the equipment
比如 50 公斤的设备放在 1 米 ×0.5 米的隔板上,每承重 100 公斤,若隔板是 2mm 钢板,就像在水泥地上放冰箱,没问题。
For example, if a 50 kilogram device is placed on a 1 meter by 0.5 meter partition, with a load-bearing capacity of 100 kilograms per square meter, and the partition is made of 2mm steel plate, it is like placing a refrigerator on a cement floor, no problem.
就像盖房子要选结实的建材,电气成套设备想扛住重型设备,隔板和导轨得是 “钢筋铁骨”!
Just like building a house requires selecting sturdy building materials, electrical equipment needs to withstand heavy equipment, and partitions and rails need to be "steel bars and iron bones"!
This article is a friendly contribution from Shandong MNS low-voltage drawer cabinet For more information, please click: We will provide detailed answers to your questions. You are welcome to log in to our website and leave a message