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Lehekett

Leaf chains consist of pins and plates only and therefore are greater in power than roller chains. They’re appropriate for tasks like hoisting and pulling. Leaf chains conform to ANSI and also have two varieties: AL and BL.
AL-vorm
To the use that static load is utilized with very little concern of sporting.
BL style
For your use that put on resistance is needed due to the fact affect load is applied.
Lehtkettide valik
The chain dimension is picked in accordance on the following formula:
Toimiv pinge? ¨ ¢ Teenindustegur¡§QMaksimaalne lubatud pinge Märkused:
1. Acting stress contains the dead excess weight on the chain, the excess weight on the attachments and inertia.
2. In the event the chain pace exceeds thirty m/min, use a roller chain.
Minimaalne ketta läbimõõt: SD = keti samm? ¨ ¢ 5
Minimum width involving flanges: L = General length of pin?¨¢1.05
?Kui pakutakse ühendustihvte: L¡§R2L1?¨¢1.05
F.D = S.D + Optimum website link plate height (H) Note:?If dimension H exceeds 25.4,
F.D = S.D + 25.4 is usually adopted because the minimum flange outer diameter.
Perioodiline ülevaatus ja juhised asendamiseks
Make sure you perform periodical inspection and lubrication to verify security and prolong chain existence. Issues and instructions for alternative are outlined in the following.
Issue:Circumferential dress in of plate
Solution:Exchange the chain if wear reduction gets five % of H.
Raskusaste: kaldus kleit plaadist ja tihvtpeaga
Valik: joondage seade.
Probleem: tihvti pea ebanormaalne väljaulatuvus või pöörlemine
Option:Replace the chain Lubricate and eliminate overload.
Problem:Wear elongation
Resolution:Substitute the chain when its length becomes 1.03L. Note: Wear elongation of the
kett alandab tõmbetugevust.
Dress in elongation of 3% lowers the tensile strength by 18 %.
The dress in lifestyle of chain could be improved by lubrication. Exchange the chain.
Challenge:Cracked plate (one)Crack: Through the hole of the hyperlink plate toward the finish from the website link plate inside the route perpendicular to stress course.
Option:Replace the chain that has a chain of greater maximum allowable stress, or reduced the load or dynamic (shock) load.
Problem:Cracked plate (two)Crack: In an oblique route against tension course.
Alternative:Substitute the chain, and safeguard from corrosive conditions.
Issue:Broken plate(by large stress)
Remedy:Exchange the chain, and remove the lead to of overload.
Probleem: Suurenenud plaadiauk
Alternative:Exchange the chain, and do away with the cause of overload.
Probleem: süvendi korrosioon
Remedy:Exchange the chain, and safeguard from corrosive situations.

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