Novel bar material cooling bed steel-feeding transmission mechanism

Abstract

The invention provides a novel steel feeding transmission mechanism of a bar cooling bank. The mechanism completes automatic alignment to a workpiece, and can reduce the manufacturing cost and production cost of a device, reduce the maintenance cost of the device while ensuring normally steel feeding. The mechanism comprises a hydraulic cylinder, a transmission connecting rod, a crank and a lifting apron plate, wherein the crank is connected with the lifting apron plate. The novel steel feeding transmission mechanism is characterized in that the transmission connecting rod is adjustable; a piston rod of the hydraulic cylinder is in axial connection with the transmission connecting rod; the other end of the transmission connecting rod is connected with a pull rod; and the hydraulic cylinder and the transmission connecting rod are arranged rightly under the pull rod.

Description

(1) Technical field [0001] The invention relates to the field of steel rolling machinery, in particular to a novel steel transmission mechanism on a bar cooling bed. (2) Background technology [0002] The existing steel transmission mechanism on the bar cooling bed mainly has two forms: 1. hydraulic cylinder-rotating through shaft-lifting skirt plate type; 2. electric motor, eccentric shaft reducer-tie rod-lifting skirt plate type. The transmission mechanism of hydraulic cylinder-rotating through shaft-lifting skirt plate has the following disadvantages: there is plane friction between the skirt plate and the friction plate in this mechanism, and the device cannot be lubricated because of the high temperature environment and the inclined surface structure, so the skirt plate is made There is a large frictional resistance during the lifting movement, so not only will there be a large energy loss for a long time, but also the lifting skirt board will become a spare part that t...

AI Technical Summary

Problems solved by technology

The transmission mechanism of hydraulic cylinder-rotating through shaft-lifting skirt plate has the following disadvantages: there is plane friction between the skirt plate and the friction plate in this mechanism, and the device cannot be lubricated because of the high temperature environment and the inclined surface structure, so the skirt plate is made There is a large friction resistance during the lifting movement, so not only will there be a large energy loss for a long time, but also the lifting skirt board will become a spare part that the factory needs more due to friction loss.

In addition, due to the factor of frictional resistance, a higher-power energy source has to be used to overcome the friction. In practical applications, this structure is equipped with a hydraulic cylinder every 12 meters, and multiple hydraulic cylinders need to be installed on the lifting skirt of the cooling bed. Hydraulic cylinders are difficult to control synchronously with multiple hydraulic cylinders, and a hydraulic system with a large flow rate is also required, which has high manufacturing costs, many safety hazards, and high maintenance costs.

In the entire upper steel mechanism of the electric motor, eccentric shaft reducer-pull rod-lifting skirt plate type transmission mechanism, the weight of the skirt plate is very large, and a large impact is generated during the lifting process of the skirt plate, which brings great impact to the transmission device. Hazards, which makes the output eccentric shaft of the reducer easily damaged due to a large impact

In addition, the reducer device is arranged on one side below the tie rod, which is prone to deflection after being subjected to an impact load, which makes it difficult to fix the reducer. Once the deflection is large, the relative position between the center of the eccentric shaft of the reducer and the tie rod will inevitably be reduced. When the position is changed, the stroke of the lifting skirt plate is also gradually reduced, so that the function of feeding the rolled piece cooling bed into the roller table to the cooling bed straightening plate cannot be completed, which will affect the production and cause losses to the factory

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