The welding rotator consists of a base, a driving roller, a driven roller, a bracket, a transmission device, and a power device drive. Its transmission device drives the active roller and uses the friction between the active roller and the cylindrical workpiece to drive the workpiece to rotate and realize displacement, which can realize the horizontal position welding of the inner and outer circumferential seams and the inner and outer longitudinal seams of the workpiece. Welding can greatly improve the quality of welds, reduce labor intensity and improve work efficiency. A welding rotator can also be used with manual welding or as a device for detecting and assembling cylindrical workpieces and is mostly used for welding the inner and outer circumferential seams and inner and outer longitudinal seams of cylindrical workpieces.
Welding rotator has various forms such as self-adjusting, adjustable, long-axis, and anti-channeling. It is mostly used for welding, polishing, rubber lining, and assembly of cylindrical barrels. The self-adjusting welding rotator can be adjusted according to the size of the barrel. Adjustable welding rotator can be adjusted by lead screw, screw grading adjustment, etc. While ensuring that the production needs are met, in the design process, in addition to strictly complying with the relevant mechanical design standards, the rationality and economic factors of the design should also be fully considered, and the cost-effective welding rotator and other welding equipment should be designed.
The anti-channeling and explosion-proof welding rotator generally adopt two driving methods: DC speed regulation and AC frequency conversion speed regulation to achieve the smooth rotation of the weldment with step-less speed regulation. Due to the defects of high failure rate and high cost of DC speed regulation, AC variable frequency speed regulation is selected. With the development of electronic technology, AC variable frequency speed regulation can fully meet the needs of welding rotators of various tonnages.
To make the adjustment of the distance between the rollers of the anti-channeling and explosion-proof welding rotator convenient and reliable, and the combination convenient, it is recommended to adopt the design scheme of driving the driving wheel separately, that is, each driving wheel is driven by a motor and a reduction mechanism. However, attention should be paid to solving the synchronization problem of each driving wheel here, and the structure of the motor and the reducer should be selected as far as possible with the same characteristics and after the actual measurement. In terms of driving mode, it is recommended to use a set of driving sources, and each drive wheel motor is connected in parallel.
Generally speaking, an anti-channeling and explosion-proof welding rotator needs to be matched with the purchase of polyurethane, which is an emerging organic polymer material with good oil resistance, toughness, wear resistance, and aging resistance. The anti-channeling and explosion-proof welding rotator produced by our factory are used for The polyurethane roller are made of imported polyurethane. Its tensile strength, tear strength, wear resistance and other properties are 3-5 times higher than that of ordinary rubber. The steel rubber combination has a large pressure bearing capacity and long life of the rubber wheel. The main drive worm adopts ZC circular arc tooth cylindrical worm, the worm tooth surface is quenched and ground, the bearing capacity is twice that of the general cylindrical worm, with high efficiency and long service life. Adjust the interval between the two sets of wheels.
At present, the anti-channeling and explosion-proof welding rotator generally adopt the method of combining rubber rollers and metal wheels, and after using polyurethane rollers, metal assistance is no longer needed. It is especially suitable for the welding of wind tower production lines and stainless steel cylinders.