Speed stabilizer of welder welding head walking mechanism in long-distance pipeline

Abstract

The invention discloses a speed stabilizer of a welder welding head walking mechanism in a long-distance pipeline. The speed stabilizer comprises first to third resistors, first to third triodes, a first potentiometer, a second potentiometer, a three-terminal regulator, an integrated voltage stabilizer, a capacitor, a transformer, a motor and a bridge rectifier circuit, wherein two ends of a primary winding of the transformer are respectively connected with two poles of an alternating-current power supply; and two ends of a secondary winding of the transformer are respectively connected with an alternating-current input end of the bridge rectifier circuit. The first potentiometer of the speed stabilizer of the welder welding head walking mechanism in the long-distance pipeline can control constant current output by the three-terminal regulator; and the current enters the integrated voltage stabilizer via the first triode, and is magnified to be accessed into the motor via the second triode and the third triode after the voltage stabilization through the integrated voltage stabilizer, so that the current is not changed due to the change of external voltage, the walking device of a welder can keep advance with uniform speed, and the welding quality is guaranteed.

Description

technical field [0001] The invention relates to a speed stabilizer, in particular to a speed stabilizer for a welding head traveling mechanism of a welding machine in a long-distance pipeline. Background technique [0002] With the advancement of science and the development of technology, industrial production has gradually developed towards the direction of mechanization and automation, especially some jobs that are more harmful to the human body have gradually begun to use automated machining methods to reduce injuries to workers. One of the most common industrial processing methods is indispensable in industrial production, but welding will continue to produce strong light, harmful gases, strong heat and other factors that are not conducive to the health of workers, so more and more welding robots are used In production, at the same time in the long-distance pipeline, manual welding cannot weld well, and automatic welding has been widely used. However, if the welding mach...

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Problems solved by technology

[0002] With the advancement of science and the development of technology, industrial production has gradually developed towards the direction of mechanization and automation, especially some jobs that are more harmful to the human body have gradually begun to use automated machining methods to reduce injuries to workers. One of the most common industrial processing methods is indispensable in industrial production, but welding will continue to produce strong light, harmful gases, strong heat and other factors that are not conducive to the health of workers, so more and more welding robots are used In production, at the same time in the long-distance pipeline, manual welding cannot weld well, and automatic welding has been widely used. However, if the welding machine cannot run in the long-distance pipeline at a uniform speed, the welding quality may be low and cannot meet the requirements. welding requirements

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