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The Advantages and Disadvantages of Bolt Balls and Welding Balls

2021-05-11

The advantages and disadvantages of the two common node forms of the bolt ball and welded ball space frame. The common node of the space frame. The bolt ball node is realized by the high-strength bolt connection of the rod and the ball. φ75.5) or taper head (steel pipe diameter less than or equal to φ75.5), the bolt ball is used as the split surface, and between the split surface and the sealing plate or the taper head is a hexagonal sleeve. A small hole is opened on the sleeve and the fastening pin is inserted. , The pin is embedded in the high-strength bolt groove inside the sleeve, the high-strength bolt cap is stuck in the sealing plate or the cone head, and the other end is screwed into the bolt ball through the force of the pin.

bolted-ball space frame

bolted-ball space frame

The advantages of bolted ball joints in common nodes of space frame:
1. There is a complete set of standard drawings of parts to guide production, which is convenient for factory processing, and different manufacturers can work together to subdivide the market.
2. On-site installation is convenient and fast, shortening the construction period and improving efficiency.


Disadvantages of bolt ball joints commonly used in space frame:
1. The angle of the rod should be considered when designing. The angle is not good and the bolt ball is very large.
2. The bolt ball is a solid ball with a large unit weight, making it difficult to install on site.
3. High precision of various accessories is required.