U-shackle

The U-shackle is a common connection that is usually used to lift, secure, or connect equipment. It has a "U" shape with threaded holes at both ends and can be secured by bolts, pins or other connectors. U-shaped ring is widely used in construction, machinery, electric power, ships and other fields, with high strength, easy installation and other characteristics.

1. High strength: usually made of alloy steel or stainless steel, can withstand large loads.

2. Multi-function: can be used for hoisting, traction, fixing and other scenarios.

3. Easy installation: Quick connection by bolt or pin, easy operation.

4. Corrosion resistance: stainless steel U-ring is suitable for wet or corrosive environment.

1. Load capacity: Select appropriate specifications according to actual needs to ensure safe use.

2. Material: Choose carbon steel, stainless steel or alloy steel according to the use environment.

3. Size: Ensure that the size of the U-shaped hanging ring matches the connector.

4. Certification standards: Select products that meet international standards (such as ISO, CE) to ensure reliable quality.

U-shaped hanging ring is a kind of power fixture made of round steel forging in the shape of U or UL (extended type), which is mainly used for connecting insulator strings, steel strands or fixing other power components in overhead power lines and substations. Its design conforms to national standards, can transfer mechanical load and electrical load, and play a protective role. U-shaped hanging ring can be used alone, or can be installed in series, commonly found in pole, cable support and other positions.

Second, material

Bulk material

The U-ring body is made of ordinary carbon structural steel (GB700-79 standard), and the tensile strength is not less than 372.5MPa to ensure that its mechanical properties meet the requirements of high pressure environment

Surface treatment

Usually through hot dip galvanizing process, enhance the corrosion resistance, suitable for outdoor long-term exposure environment.

Matching fastener

Nut: GB41-76 standard hexagon nut (rough)

Bolt: SD25-82 standard hexagonal head bolt with pin hole

Closed pin: SD26-82 standard closed pin

Third, use method

Positioning and preparation: Select installation positions that meet design requirements, such as poles and supports, and prepare tools, such as bolts, nuts, and wrenches.

Fixing the ring: Align the U-shaped ring opening with the mounting point upward or downward, and secure the ring using bolts and nuts.

Suspension components: Cables, wires, etc. are placed in the arc part of the hanging ring to ensure uniform weight distribution

Check bolt tightness and ring corrosion regularly for timely maintenance.

Different models (such as the U and UL) are suitable for different scenarios, and the UL is more suitable for specific connection requirements due to its extended design.

Four, the role

Use with PD plate, avoid the cable bending radius is too small, protect the line safety.

Compatible with a variety of hardware (such as tension clamp, connecting plate, etc.), improve the flexibility of the power system.

The design and production of U-shaped hanging rings must meet the following standards:

General technical conditions: GB2314-85

Failure load and connection size: GB2315-85

Industry specification: DL/T759-2009 "Connecting Fittings"

Common models include U-7, U-10, UL-12, etc. The nominal damage load ranges from 70kN to 500kN, the specific size and weight need to refer to the model parameter table

As a key connection tool in the power system, U-shaped hanging ring has become an important component to ensure the safe operation of the power grid by virtue of its high strength material, flexible use mode and wide application scenarios. Strictly follow the installation specifications and maintain them regularly to ensure long-term reliability.

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