Yangzhou Tongyi Machinery Co., Ltd

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Add: No.3 Yima Road, Guangling Industrial Park, Yangzhou, Jiangsu, China
Tel: +86-514-85550681
Mob: +8613405556016
Fax:+86-514-85550682
E-mail: tonyzhang@yztym.com
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American Ship Inspection Bureau ABS Standard
Dec 06, 2018

1.Lateral and longitudinal test

Standard requirements: Install a single leg on the frame, extend the inner leg 370mm (full extension of stroke less than 370mm), 13000 Pound inch (5909kg) force on the center of the inner leg tube axis or from the bottom of the inner leg.

At 1 inch (25.4 mm), it is loaded from the parallel frame axis on both sides of the leg and the vertical frame axis to the inside of the frame.

Passing the standard: Except for longitudinal and lateral loads, the torque of the input shaft to extend and retract the inner leg does not exceed 600 Pound inch (in 68 N•m); during the test, the internal leg is offset by no more than 40 mm in the longitudinal and lateral directions.

2.Vertical strength test

Standard requirements: The single main leg is mounted on the frame, the inner leg is extended 370mm (the stroke is less than 370mm fully extended), and the 70,000 Pound inch (31.8t) force acts perpendicularly on the inner leg end, with or without legs.

Passing the standard: Remove the vertical load and the torque of the input shaft to extend and retract the inner leg does not exceed 600 Pound inch (in 68 N·m).

3.Component strength test

Standard requirements: The single main leg is mounted on the frame to ensure that the inner leg can fully retract. The force of the 0.75 times rated lift load of the leg is applied perpendicularly to the end of the inner leg, and the torque is input so that the inner leg extends 3 inches (76 mm).

Passing the standard: Remove the vertical load and the torque of the input shaft to extend and retract the inner leg does not exceed 600 Pound inch(in 68 N•m).

4.Lifting capacity test

Standard requirements: Install a pair of legs on the frame, the inner leg extends 370mm (the stroke length is less than 394mm, the maximum stroke is 25mm), so that the frame is in the horizontal position (the vertical load is added to the support). On the inner leg end of the leg). The low speed gear raises the support 25mm (1 inch) and the average torque during the rise does not exceed 136 N•m.

Passing the standard: The minimum allowable rated lifting capacity is 38,000 Pound inch (17.3 t) and the test result must be greater than the rated lifting capacity.

5Durability test

Standard requirements: Install a pair of legs on the frame, the inner leg extends 370mm (the stroke length is less than 394mm, the maximum stroke is 25mm), the frame is in the horizontal position; first, the running-in test is carried out with a load of 8000 kg. Lift 20 times; then lift up to 75 mm at rated load

200 times. The crank is evenly and stably rotated during the test, and the lift is not less than 4 times per hour and not more than 8 times.

Passing the standard: Remove the vertical load and the torque of the input shaft to extend and retract the inner leg does not exceed 600 Pound inch (in 68 N•m).

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    Add: No.3 Yima Road, Guangling Industrial Park, Yangzhou, Jiangsu, China
    Tel: +86-514-85550681
    Mob: +8613405556016
    Fax:+86-514-85550682
    E-mail: tonyzhang@yztym.com
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