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Crane compares the advantages and disadvantages of several connection methods
2015-01-24 09:33
Crane compares the advantages and disadvantages of several connection methods
Common cranes connection methods riveting, welding, pin connections, ordinary bolt connection, high strength bolt connection, the following link will analyze the advantages and disadvantages of several methods:
1, riveting
Advantages: power transmission reliability, toughness and good plasticity, easy to check quality, anti-power loads well. Especially for heavy and direct withstand dynamic loads of the structure.
Disadvantages: its structure is complicated, large steel construction trouble, big noise.
2, welding---Welding is a connection method now widely used.
Advantages: The geometric adaptability, material economy, not weakens section; facilitate the production process can be automated; airtight connection is good, structural stiffness.
Disadvantages: connection stiffness, easy to cause residual stress and deformation structure, low temperature sensitivity of the weld large.
3, pin connection
Advantages: power transmission reliability, toughness and good plasticity, easy to check quality, anti-dynamic loads, and will not come loose.
Disadvantages: high production machining requirements.
4, ordinary bolt connection
Advantages: convenient loading and unloading, a simple device.
Disadvantages: Low-bolt precision, should not by high shear bolt precision machining and installation difficult.
5, high-strength bolted connections
Advantages: good connection toughness and ductility, quality inspection convenience, mass force uniform; the structure of the work under the structure and low power loads, connection reliability, removable, anti-fatigue.
Disadvantages: friction surface treatment installation process a little more complicated, the cost is slightly higher, and in the role of easy to lose power.
Common cranes connection methods riveting, welding, pin connections, ordinary bolt connection, high strength bolt connection, the following link will analyze the advantages and disadvantages of several methods:
1, riveting
Advantages: power transmission reliability, toughness and good plasticity, easy to check quality, anti-power loads well. Especially for heavy and direct withstand dynamic loads of the structure.
Disadvantages: its structure is complicated, large steel construction trouble, big noise.
2, welding---Welding is a connection method now widely used.
Advantages: The geometric adaptability, material economy, not weakens section; facilitate the production process can be automated; airtight connection is good, structural stiffness.
Disadvantages: connection stiffness, easy to cause residual stress and deformation structure, low temperature sensitivity of the weld large.
3, pin connection
Advantages: power transmission reliability, toughness and good plasticity, easy to check quality, anti-dynamic loads, and will not come loose.
Disadvantages: high production machining requirements.
4, ordinary bolt connection
Advantages: convenient loading and unloading, a simple device.
Disadvantages: Low-bolt precision, should not by high shear bolt precision machining and installation difficult.
5, high-strength bolted connections
Advantages: good connection toughness and ductility, quality inspection convenience, mass force uniform; the structure of the work under the structure and low power loads, connection reliability, removable, anti-fatigue.
Disadvantages: friction surface treatment installation process a little more complicated, the cost is slightly higher, and in the role of easy to lose power.
