Reasons for gearbox oil leakage1. Pressure difference between the inside and outside of the reducer: During the operation of the reducer, the friction and heating of the moving pair, as well as the influence of environmental temperature, cause the temperature of the reducer to increase. If there are no ventilation holes or the ventilation holes are blocked, the pressure inside the reducer gradually increases. The higher the temperature inside the reducer, the greater the pressure difference with the outside world. Under the pressure difference, lubricating oil leaks out from the gaps.2. The structural design of the reducer is unreasonable.1) The inspection hole cover plate is too thin, and after tightening the bolts, it is prone to deformation, causing uneven joint surfaces and oil leakage from the contact gaps;2) During the manufacturing process of the gearbox, if the castings are not annealed or aged, and internal stresses are not eliminated, deformation will inevitably occur, resulting in gaps and leakage;3) There is no oil return groove on the box, and lubricating oil accumulates in the shaft seal, end cover, joint surface, etc. Under the pressure difference, it leaks outward from the gap;4) The design of the shaft seal structure is unreasonable. Early reducers often used oil groove and felt ring type shaft seal structures, which caused deformation of the felt during assembly and sealed the gaps on the joint surface. If the contact between the shaft neck and the seal is not ideal, due to the poor compensation performance of the felt, the seal will fail in a short period of time. Although there are oil return holes on the oil ditch, they are easily blocked and the oil return effect is difficult to exert.3. Excessive refueling: During the operation of the gearbox, the oil pool is stirred violently, and lubricating oil splashes everywhere inside the machine. If the refueling amount is too much, a large amount of lubricating oil accumulates in the shaft seal, joint surface, etc., leading to leakage.4. Improper maintenance process: During equipment maintenance, oil leakage can also occur due to incomplete removal of dirt on the joint surface, improper selection of sealant, reverse installation of sealing components, and failure to replace sealing components in a timely manner.

The lifting crane is a gantry crane specially designed for bridge construction. The beam lifting machine is mainly composed of assembled main beams, supporting legs, overhead cranes, etc. The components are connected by pin shafts and high-strength bolts, making it easy to disassemble and transport; Compared with ordinary gantry cranes, installation is convenient, fast, economical, and practical. Suitable for road and bridge construction units that frequently move.The lifting machine is composed of a load-bearing system, supporting structure and walking mechanism, and an electric control system for the lifting trolley. It is a lifting device that lifts prefabricated beams from the storage site to the beam transport flatcar. Its main function is to be responsible for the loading and unloading of prefabricated beams, and to improve the installation efficiency of bridge engineering.1. Load bearing system: It is composed of the main beam, supporting legs, ground beam, and longitudinal beam connection frame.2. Supporting structure and walking mechanism: including supporting legs and walking wheel box3. Lifting trolley: The lifting trolley can complete the lifting and transportation of prefabricated beams, as well as the installation of control beams in place.4. The electronic control system includes power supply, large vehicle travel, small vehicle travel and lifting parts, as well as limit and alarm protection.

Special equipment for serving anode roasting furnaces, assembling anode fixtures, suction tubes, discharge tubes, and control rooms on carts, completing the suction and loading of filling materials, and loading and unloading of carbon blocks; A monorail crane is installed on the outer side of the main beam to transport equipment such as combustion racks, air ducts, and furnace walls.technical parameterSilo volume: 27m3~40m3Material suction capacity: 40-70m3/hApplication industryAluminum anode manufacturing

Electric flatbed is a transportation tool used for pulling goods powered by an electric battery and an electric motor; Electricity, as an important energy source that is environmentally friendly, clean, and has a high conversion rate, is used to drive the upgrading of transportation vehicles, promote the low-carbon development of the transportation industry, reduce transportation costs, save energy, and protect the environment. It is one of the important topics studied by countries around the world. After decades of development, it has been applied in many fields such as urban public transportation vehicles, electric transportation vehicles for factories and mines, electric urban sanitation and cleaning vehicles, engineering, tunnel, and subway construction special vehicles. Electric flatbed trucks have the advantages of strong applicability, mobile recording, simple maintenance, convenient maintenance, and low price. Electric flat cars are widely used in short distance transportation fields such as factory areas, mining areas, and environmental sanitation.Electric flat cars are generally used in harsh environments, requiring durable motors and batteries, as well as high requirements for frame materials and welding processes. The thickness of the frame pipes is 2.5 or more, and plasma shielded welding is used for welding. The welding density is high, the tensile strength of the weld seam is high, and it is not easy to break. Can adapt to the requirements of the factory operating environment.