The speed reducer is a kind of power transmission mechanism, which uses the speed converter of the gear to reduce the number of revolutions of the motor to the desired number of revolutions, and obtain a large torque mechanism. In the current mechanism for transmitting power and motion, the application range of  reducer is quite wide. It can be seen in almost all kinds of mechanical transmission systems. Its applications range from high-power transmission to small loads and precise angle transmission. The application of reducers can be seen, and in industrial applications, reducers have the function of decelerating and increasing torque. Therefore, it is widely used in speed and torque conversion equipment.

I. Repair and repair of the reducer bearing room The bearing position and bearing room of the reducer are under high-load, low-speed, high-load, high-torque startup and under the action of equipment vibration and radial impact, metal occurs in the bearing room or bearing Fatigue results in permanent deformation. The inner ring of the bearing and the shaft or the outer ring of the bearing and the bearing chamber have a clearance fit, which results in relative wear. Once this problem occurs, it will seriously affect the normal production of the equipment. If the bearing room of the reducer is worn, the replacement cost of components is high, and the manufacturing cycle is long. The general repair methods are dismantling and repairing or reaming and inserting steel sleeves, which are time-consuming, labor-intensive, and expensive. The excellent mechanical properties and good plasticity of polymer materials make this problem properly solved, which greatly shortens the repair time of the equipment while ensuring the normal operation of the equipment, creating huge economic value for the enterprise.

The polymer composite repair material is a material composed of polymer, metal or ceramic ultrafine powder, fiber, etc., and is compounded under the action of a curing agent and a curing accelerator. Various materials draw on each other's strengths and complement each other in performance to produce a synergistic effect, which makes the comprehensive performance of the composite material better than the original composition material. With strong adhesion, mechanical properties, and chemical resistance, it is widely used in the repair of mechanical wear, scratches, pits, cracks, leaks, casting trachoma and other chemical storage tanks in metal equipment , Corrosion protection and repair of reaction tanks and pipelines.

This kind of problem is difficult to be solved by traditional methods on the spot. Outsourced repair is difficult to repair due to the limitations of component materials and wear size. Usually new components are used to solve the problem. The reducer is continuously improved, the parts are updated quickly, and the spare parts occupy a huge amount of funds. According to different equipment, different operating conditions and different wear conditions, the corresponding repair process can be used to quickly, easily and effectively repair, especially due to the concession of polymer materials, always maintaining 100% of the contact area to avoid the occurrence of matching gaps, so that The life of the repaired equipment is even longer than that of the new equipment, which fundamentally solves the cause of shaft wear.

In addition to the rapid repair of the reducer bearing room wear, for the leakage of the reducer's static sealing point, you can also use Meijiahua polymer composite materials and technology to control the leakage on the spot, without disassembly, the polymer composite material externally controls the leakage, saving time and effort. The results are immediate, and its superior adhesion, oil resistance and 350% elongation overcome the effects of reducer vibration. If the oil leakage occurs at the static sealing point of the reducer during operation, it can be blocked by emergency repair agent on the oil surface of the surface engineering technology, so as to eliminate the oil leakage.