Model: DT-7
Model: DT-10
Model: DT-12
Model: DT-16
Model: DT-21
Type: Adjusting Clevis Ring, a connection fitting
Material: Hot-dip galvanized malleable cast iron (malleable cast iron); stainless steel closing pin
Corrosion Protection: Hot-dip galvanizing layer thickness ≥ 65μm, in compliance with GB/T 2315-2017
Main Applications: Extending insulator strings in overhead power lines, securing substation structures and heavy equipment, and suitable for high-load transmission lines (breaking load 160 kN)
What precautions should be taken when using the DT adjusting Clevis ring?
Adjustment Limits
The pin's extension and retraction travel is limited by the number of slots. Excessive rotation may damage the threads or cause the elastic element to fail.
Environmental Compatibility
Can this DT adjusting Clevis ring be used in any environment? Not necessarily. Hot-dip galvanized materials are generally suitable for temperatures between -20°C and 120°C. If the temperature falls outside this range, the material must be replaced.
Maintenance Requirements
Regularly check the tightening of the adjusting nut to prevent vibration loosening. If the galvanized coating is damaged, it should be treated with rust prevention measures.
The DT adjusting Clevis ring is a precision adjustment component used in mechanical connections. Hot-dip galvanizing enhances its corrosion resistance and provides basic protection. While it may appear complex, its design is primarily focused on adjustment accuracy, enabling fine-tuning of axial displacement through threaded engagement. It features a built-in adjusting nut and slots. Rotating the nut extends and retracts the pin, adjusting the clearance or preload of the connection. The elastic element ensures stability and cushions vibrations after adjustment.
Common DT adjustment Clevis ring models vary primarily based on the number of holes and sizes, but all are suitable for precision adjustment in mechanical connections. Common sizes include DT-6, DT-7, DT-10, DT-12, DT-16, DT-21, and DT-30. Let's take a closer look:
Hole Positions: Available in 2-, 3-, 4-, 6-, 8-, and 12-hole options. 4- and 6-hole designs are more common in general industrial applications due to their adaptability to medium connection density and load balance.
Sizes: Standard sizes include ø20, ø25, ø32, and ø40. ø25 and ø32 models are more frequently used due to their compatibility and ease of integration into cylinder systems or valve actuators.
The more numerous the DT adjustment Clevis ring models and sizes, the more attention should be paid to the design. Consider the actual application environment. If you're unsure about choosing, please contact customer service.
The DT adjustment Clevis ring works by utilizing a combination of multi-position holes or a sliding structure to flexibly adjust the connection length, thereby compensating for installation errors, adapting to line dynamics, or balancing stresses. When length adjustment is required, bolts are inserted through different holes to change the distance between the connecting fittings, thereby achieving "shortening" or "lengthening." During power line construction, slight variations in tower spacing, fitting machining accuracy, and insulator string length may occur. The DT adjustment ring precisely compensates for these variations by adjusting the hole position, avoiding stress concentration caused by forced installation.
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