The main and driven frames of the welding rotator are made of steel plate structure brackets, and the main parts such as load-bearing shafts are made of high-quality steel, which has been quenched and tempered before being processed.
The main and driven frames of the welding rotator each have four rollers, and the four rollers on the active frame are all synchronous driving wheels. The rollers are installed in the side panel assembly. The roller adopts the structure of the integral roller. The rubber on the surface of the wheel is made of high-quality rubber, which has a high bearing capacity and wears resistance and is not suitable for aging and degumming. The swingarm of the self-aligning roller frame adapts to the requirements of different diameter workpieces. The rotary shaft of the clamp frame of the roller assembly has strong rigidity. When the workpiece is placed on the roller assembly, the good clearance between the rotary shaft and its shaft hole can ensure that the clamp frame opens at a suitable angle with the workpiece to meet the requirements of different diameter workpieces. Rotation requirements. An oil line groove is designed and made on the rotary shaft, which can be frequently filled with grease to ensure its good lubrication.
Each shaft hole of the main and driven frames of the welding rotator is machined with a boring machine at one time, and the parallelism of each axis is good and the amount of movement is small. The high-quality spherical roller bearings produced by well-known domestic manufacturers are installed in the roller assembly. The use of this bearing has a strong bearing capacity, and its self-aligning performance can reduce some elastic deformation during the load-bearing process so that the roller frame has a strong bearing capacity. Long service life, reduces maintenance costs and maintenance time and has better performance. The grease used in the bearing is lithium-based grease, which has a good lubricating performance.
The four rollers of the active frame of the welding rotator fully mesh, and the transmission gear and the drive reducer are connected as a "cross" coupling. The use of this coupling is reliable in transmission, and the transmitted torque is large. Appropriate compensation for different axial degrees. All transmission gears are made of high-quality steel, the surface of the tooth surface is quenched and lubricated by frequent refilling of grease, which can be used for a long time without changing gears. On the outside of the transmission gear, a gear guard is installed.
The imported Danfoss AV series inverter is used for step-less speed regulation, each parameter can be preset and digitally displayed, the speed regulation range is wide, the operation is stable, and it has multiple protections for overvoltage, overcurrent, overload, and overheating.
All the roller components on the main and driven roller frames of the welding rotator are symmetrically distributed to both sides according to the axis line of the roller frame, and the heights of each roller are consistent, to ensure the normal operation of the workpiece on the roller frame. And equipped with a hoisting hook, the roller frame can be hoisted conveniently.
The double cycloid reducer is used for double drive. The selected reducer and motor have high synchronization performance so that the rollers on the roller frame can run synchronously. In addition, the use of a cycloid reducer for driving can avoid the impact force of the reverse operation of the clamp frame on the reducer when placing the workpiece, which can effectively prevent the possible early damage of the reducer, so that the reducer and the motor have a long service life. . Large-tonnage roller racks generally use this type of transmission.
The cycloid reducer adopts domestic brands and is produced by high-quality manufacturers. The cycloid reducer has the following characteristics;
⑴High-speed ratio and high efficiency, the efficiency of single-stage transmission can reach more than 80%. The use of multi-stage transmission has the requirement of a large reduction ratio that meets the requirements of the roller running at the linear speed;
(2) Compact structure and small volume. Due to the planetary transmission principle, the input shaft and the output shaft are on the same axis, so the structure is compact and the volume is small;
(3) The operation is stable and the noise is low, the number of meshing teeth of the cycloid needle is large, the overlap coefficient is large, and the machine is stable so that the vibration and noise are limited to a minimum;
⑷Reliable use and long service life. Because the main parts are made of bearing steel, high strength is obtained by quenching treatment (HRc58~62), and some transmission contacts use rolling friction, so they are durable and have a long service life.
⑸ Reasonable design, convenient maintenance, easy disassembly and installation, the minimum number of parts, and simple lubrication make the cycloid reducer have good performance.
Equipped with a long-distance hand-held operation box, which is simple and convenient to use, and can also be used with a manipulator to realize online operation.
The whole roller frame has strong rigidity and stability, a beautiful appearance, stable and reliable performance, simple maintenance, long service life, and low maintenance cost. The design and manufacture of the welding roller frame are completed by the relevant provisions of the national "JB/T9187-1999" welding roller frame industry technical standard and are designed and manufactured. In the manufacturing process, we strictly abide by the relevant standards in the quality assurance system of our company for production to ensure the production quality of the products.