June 21, 2019

The working surface of the fixed

The main cooling bed types of seamless steel pipe production line include single chain cooling bed, double chain cooling bed, new chain cooling bed, step rack type cooling bed and screw type cooling bed.1. Single chain cooling bedSingle-chain cold beds use climbing structures. The cooling bed consists of a forward transport chain and fixed rails and has a transmission system. The seamless steel pipe is placed between the two grips of the forward transport chain, and the fixed rail bears the weight of the steel pipe body. The single-chain cold bed uses the thrust of the forward transport chain finger and the friction of the fixed guide rail to make the steel tube rotate, and at the same time, relying on the self-weight and lifting angle of the steel pipe, the steel pipe always abuts on the finger of the forward transport chain. Realize the smooth rotation of the steel pipe.Double chain cooling bedThe double-chain cold bed consists of a forward transport chain and a reverse transport chain. Each of the positive and negative chains has a transmission system. The steel pipe is placed between the two grips of the forward transport chain, and the reverse chain bears the weight of the steel pipe body.
The double-chain cold bed uses the thrust of the forward transport chain puller to move the steel pipe forward, and the friction of the reverse chain causes the steel pipe to continuously rotate. The movement of the reverse chain in turn causes the steel tube to always rest on the fingers of the forward transport chain for smooth rotation and uniform cooling.The new chain cooling bedCombined with the characteristics of single-chain cold bed and double-chain cold bed, the cold bed is divided into an uphill section and a downhill section. The upslope section is a double-chain structure consisting of a forward transport chain and a reverse transport chain. The positive and negative interactions cause the steel pipe to continuously rotate and advance. The downhill section is a single-chain structure in which the forward transport chain and the steel pipe guide are arranged in parallel, and the rotation is performed by the self-weight to perform the landslide movement.Step rack type cooling bedThe stepped rack type cold bed surface consists of two sets of racks, one assembled on the fixed beam, called the static rack, and the other assembled on the moving beam, called the moving rack. When the mechanism is actuated, the moving rack rises and the steel pipe is lifted. Since the steel pipe has an inclined angle, the steel pipe rolls once along the tooth shape when it is lifted. After the moving gear is raised to the highest position, the stepping mechanism acts to advance the moving rack to a step of the cooling bed output direction. The lifting mechanism continues to move, and the moving rack is lowered and the steel pipe is placed in the fixed rack tooth groove. The steel pipe is rolled again along the tooth shape of the fixed rack, and then the moving rack returns to the initial position to complete a working cycle.5. Screw type cooling bedThe screw cooling is composed of a main transmission device, a screw and a fixed cooling gantry, and the screw includes a screw core and a screw spiral.
The working surface of the fixed cooling gantry is higher than the spiral core and lower than the spiral, and the weight of the steel pipe body is borne by the fixed cooling gantry. The main transmission drives the screw to rotate synchronously, and the spiral on the screw pushes the steel tube to roll forward on the fixed cooling gantry for cooling.Single-chain cold bed is not suitable for discontinuous operation, double-chain cold bed has better effect, new chain cooling bed has good effect and low cost, and step-and-pinion type cold bed is generally used in large or high-profile production lines. Screw-type cooling beds are generally used to cool smaller diameter steel pipes.

Posted by: nonstandardes at 01:41 AM | No Comments | Add Comment
Post contains 668 words, total size 4 kb.




What colour is a green orange?




13kb generated in CPU 0.0132, elapsed 0.1068 seconds.
35 queries taking 0.1 seconds, 48 records returned.
Powered by Minx 1.1.6c-pink.