Self-rotation type welding roll rack with regulable rotation speed

Abstract

The invention discloses a self-rotation type welding roll rack with regulable rotation speed. The self-rotation type welding roll rack comprises a welding roll rack composed of a base, a driven supporting wheel rack, a driving supporting wheel rack, a driven supporting wheel, a driving supporting wheel and a driving motor, and further comprises a speed regulating circuit connected with the driving motor, and a driving circuit connected with the speed regulating circuit, wherein an output end of the speed regulating circuit is connected with the driving motor; an input end of the speed regulating circuit is connected with an output end of the driving circuit; and a power source is further connected on an input end of the driving circuit. According to the self-rotation type welding roll rack with regulable rotation speed provided by the invention, the control effect for an electric current is greatly improved, the driving motor is well prevented from being impacted by relatively large current fluctuation during utilization, the change of the electric current can be gradually adjusted during speed regulation, the impact suffered by the driving motor is further reduced, and the utilization effect and safety of a product are improved.

Description

technical field [0001] The invention belongs to the field of welding roller frames, in particular to a self-rotating welding roller frame with adjustable rotational speed. Background technique [0002] Welding roller frame is a kind of welding auxiliary equipment, which is often used for welding the inner and outer circular seams and inner and outer longitudinal seams of cylindrical workpieces, including base, driving roller, driven roller, bracket, transmission device, power device drive and so on. The transmission device drives the active roller, and the friction between the active roller and the cylindrical workpiece is used to drive the workpiece to rotate to achieve displacement, which can realize the horizontal position welding of the inner and outer circular seams and inner and outer longitudinal seams of the workpiece, and the matching automatic welding equipment can realize automatic welding , Can greatly improve the quality of welds, reduce labor intensity and impr...

AI Technical Summary

Problems solved by technology

[0003] However, the use effect of today's welding roller frame is not good when it is used. The main reason is that the circuit structure design for the traditional transmission motor power supply is unreasonable, and its current control effect is poor, which makes the current fluctuate when it is fed into the transmission motor. Larger, which greatly affects the normal operation of the transmission motor, and even damages the transmission motor

At the same time, the speed regulation effect of the welding roller frame is poor, and the speed regulation is difficult to control accurately, and only step-by-step speed regulation can be performed. During the step-by-step speed regulation process, the current difference is large, which will cause a large impact on the transmission motor. Severe cases may even damage the transmission motor and lead to production stoppage

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