Sealing effect and service life of overhead crane

In the process of working, the equipment of the overhead bridge crane will be affected by vibration, wear, pressure, temperature and other factors. Traditional treatment method should disassemble reducer, replace seal gasket or daub sealant, but time-consuming and laborious, and difficult to ensure the sealing effect, leakage will occur again in operation. Contemporary western use polymer composite material field control leakage, more applications have fushi blue series. Polymer material repair can be disassembled, and the material has excellent adhesion, oil resistance and 350% of the tensile degree, good to overcome the impact of reducer vibration, repair effect is more effective than the traditional method.

When the overhead trolley crane is in use, its active wheel and taxi reducer operate frequently. In the process of operation, it reverses and stops for many times, which will cause the torque and vibration of each shaft of the reducer to increase and easy to cause leakage. After this kind of problem occurs, the traditional methods are mainly used for repair welding or brush plating machining repair, but both of them have some disadvantages: the thermal stress generated by repair welding at high temperature cannot be completely eliminated, and it is easy to appear bending or fracture.

Overhead traveling crane brush plating coating thickness limit, easy to flake, and the above two methods are metal repair metal, can not change the "hard to hard" relationship, in the comprehensive action of all forces, will still cause wear again. The new maintenance methods are mainly based on polymer composite materials, and the application of micahua technology products, which have super adhesion, excellent compressive strength and other comprehensive properties. Application of high polymer material to repair, no repair welding thermal stress effect, the thickness of the repair is not restricted, and the product of metal materials do not have rolled back, can absorb the impact of vibration equipment, avoid the possibility of wear and tear, and greatly prolong the service life of equipment components, save a lot of downtime for the enterprise, creating huge economic value.

Electric overhead crane operating mechanism generally only four active and driven wheels, if the lifting weight is very large, commonly used to increase the wheel to reduce the wheel pressure. When the wheel more than four, must use hinged equalizing frame device, so that the load of the crane evenly distributed on each wheel. The metal structure of the bridge is composed of the main beam and the end beam. The single main girder bridge is composed of a single main girder and the end girders on both sides of the span. The double girder bridge is composed of two main girders and end girders.