wrist arm system
Purpose: install in wrist arm column, hard cross beam, play the role of bearing contact suspension load, fixing the position of bearing cable, connecting the fixed contact line positioning device and so on.
Performance: the overall mechanical performance meets the horizontal load of 3.5 kn. at the bearing cable seat, the vertical load of 4.0 kn. and the horizontal load of 4.0kn at the joint of the oblique wrist arm with the positioning tube (or the positioning ring). The deflection of each part of the device is not greater than 0.7% l (l is the maximum length between the bearing points of the wrist arm supporting device).
G-type brace
Figure number: compressed-type: jl375-01-02 welded-type: jl375-01-08
Purpose: this part is used for supporting and fixing between flat wrist arm and oblique wrist arm or between oblique wrist arm and positioning tube.
Material: 20# seamless steel tube Q235A
Performance: 1. The maximum work load is 4.0kN. 2. The damage load is not less than 12.0kN.
Support pipe clamp
Figure number: JL35-06
Purpose: For oblique between bracket and flat bracket, bracket and positioning pipe between the fixed support.
Material: Q235A
Process: the metal mould forging of hot dip galvanized
Performance: 1. The maximum level of working load of 3.0kN, the maximum vertical load of 3.0kN.
2. The sliding load of 4.9kN.
3. The maximum level of damage load of 9.0kN, the maximum vertical failure load of 9.0kN.
Pipe cap
Figure number: JL07-99
Purpose:Use to the bracket and the positioning of tube end sealing.
Material: 10#
Process: Stamping molding hot dip galvanized
Double groove bearing seat
Figure number: JL0318（D）
Purpose: Fixed to the outer diameter of the parts as D60mm flat bracket, used to support and fixed carrier cable copper alloy.
Material: Q235A
Process: Metal mould forging of hot dip galvanized
Performance: 1. The peak work load of 6.0 kN, the maximum vertical load of 6.0 kN.
2. With the flat sliding load between the bracket is not less than 5.3 kN.
3. The maximum level of damage load of 18.0 kN, maximum vertical load is not less than 18.0 kN.
4. With the carrier cable sliding load between the (single) not less than 2.0 kN.
The single slot carrier cable
Figure number: JL0518（D）
Purpose: Fixed to the outer diameter of the parts as D60mm flat bracket, used to support and fixed carrier cable copper alloy.
Material: Q235A
Process: Metal mould forging of hot dip galvanized
Performance: 1. The peak work load of 6.0 kN, the maximum vertical load of 6.0 kN.
2. With the flat sliding load between the bracket is not less than 5.3 kN.
3. The maximum level of damage load of 18.0 kN, maximum vertical load is not less than 18.0 kN.
4. With the carrier cable sliding load between the (single) not less than 2.0 kN.
Casing ears
Figure number: JL14-06
Purpose: Used in wrist arm device flat bracket connected with inclined support bracket.
Material: Q235A
Process: Mechanical processing hot dip galvanized
Performance: 1. The peak work load of 5.8 kN, the maximum vertical work load of 4.9 kN.
2. The sliding load of 7.5 kN.
3. The level of most destructive load no less than 17.4 kN, the largest vertical load is not less than 14.7 kN.
Oblique bracket
Figure number: JL61(X)-07。
Purpose: For the bracket of the hypotenuse triangle bracket support structure, oblique tong wrist arm bracket end connection device connected to the flat bracket at the other end through the rod insulator connected to the bracket base.
Material: 20 # seamless steel tube。
Process: Mechanical processing hot dip galvanized.
Flat bracket
Figure number: JL61(P)-07。
Purpose: Used to form a bracket support structure of the upper triangle bracket, flat bracket cantilever end through the carrier cable support carrier cable, on the other side through the rod insulator and the bracket is connected.
Material: 20 # seamless steel tube。
Process: Mechanical processing hot dip galvanized.
