With the development of the power industry and the implementation of the country's urban and rural power grid transformation, the transformer car driving simulator industry has encountered a rare opportunity, and it has also brought opportunities for the development and progress of special transformer equipment. Due to the further standardization of market competition, it is expected that in21Century, China's transformer industry production dispersion will gradually develop in a relatively concentrated direction. It is inevitable to use high-performance, high-reliability special equipment for automobile teaching models. The equipment level of an enterprise is a symbol of its strength and is one of the important means of competition. WithEquipment transformerWith the development of products and the progress of technology, the requirement of updating equipment will become more urgent.
Market Prospect of Equipment Transformer
1.Core production equipment
In the manufacture of power transformers, the core production equipment is mainly the slitting line and the cross-cutting line. From1980Since the beginning of the decade, these two kinds of teaching equipment have not changed much and are relatively mature. In particular, there are fewer changes in the slitting line, which is mainly due to the rapid development of the monitoring level, which is expected to be the case in the future. Slitting can apply laser cutting technology to completely solve the burr problem. The application of laser cutting has become more and more common, but the cutting speed must be interrupted when used on the slitting line, and it is still difficult to reach every minute100meters above the level. The crosscutting line has adopted hydraulic transmission in foreign countries, which is characterized by high speed and low noise (currently pneumatic in China). If hydraulic transmission is to be adopted in China, the problem encountered is oil leakage in the hydraulic system. Using hydraulic servo technology, the components are expensive and the system oil requirements are high, which brings certain difficulties to maintenance. After solving the above problems, hydraulic transmission can be used, and longitudinal and horizontal stepping functions can be added to solve the problem of misaligned laminations. At present, domestic equipment has this function, but it needs further improvement. Single-row automatic stacking has been developed abroad, but it has not been successfully developed in China. The self-diagnosis system is also the future development direction of the crosscutting line. In addition, it should reduce the difficulty of maintenance, reduce the requirements for operators, and make the control system modular software more complete.
In the manufacture of the distribution transformer pile tester, with the development of the core transformer, a set of electrical and electronic laboratory equipment with a high degree of automation will be developed for the coil core production equipment (including shear winding, forming and annealing equipment). In recent years, amorphous materials have developed rapidly at home and abroad. Amorphous core manufacturing equipment is completely different from silicon steel materials because the amorphous material is thin and brittle, and the core structure is also rolled. Teaching flipchart devices need to have a digital control system that automatically changes length. Cutting tools also require a special structure of automotive teaching equipment. New approaches to materials management must also be explored.
2.Winding production equipment
With the further improvement of the physical laboratory equipment required for winding quality, large vertical winding machines will be widely used. The improvement direction of large horizontal winding machine is to use frequency conversion technology to make it start and brake smoothly, and to increase radial and axial compression devices and tensioning devices to improve the automation level of chemical laboratory equipment and solve the current problems. Provide high-precision stroke (control winding axial size) and high-precision pressure control equipment to the winding machine, and will further promote and apply constant pressure drying devices.
In recent years, foreign countries have developed a teaching-type automatic winding machine with automatic winding and automatic tensioning, which has improved the quality of winding. In the past, foil winding machines were mainly used to wind high-voltage windings of dry-type transformers, and will be used to wind more oil-immersed transformers in the future. It has high efficiency and good winding quality, especially for household appliances experimental equipment, and has the characteristics of reducing the material consumption of the entire transformer and improving the short-circuit stress of the coil.
3.Insulating parts processing
The machining center will be further improved by its high efficiency and high processing quality. However, current equipment prices are too high for most companies to afford. After localization, the price will be greatly reduced. At present, the support of most parts, cooling and heating test bench pads are processed on ordinary machine tools, which is unreasonable. Since the processing of insulating parts does not require high precision, low cutting force and high finish requirements, high speed should be used. cutting, which only works when the machine spindle speed is doubled. Cardiopulmonary Resuscitation Simulator. The higher speed of the spindle of the imported machining center is18000r / min. At the same time, the material and shape of the tool should be studied to solve the problem of dust removal and chip removal.
4.Corrugated oil tank production line
Corrugated oil tank will be gradually promoted as distribution transformer oil tank. Early in1980In the 1990 s, our country introduced one after another.12Strip corrugated oil tank production line. At that time, most were underutilized, and the utilization rate has been increasing year by year in recent years. Foreign corrugated oil tank production line has a new development in recent years. For large capacity fuel tanks, the wave fins are relatively high. In order to enhance rigidity, intermediate spot welding is used and a multi-point special spot welding machine (4or8head). In order to improve the welding of the corrugated wall and the bottom of the box, the steel strip is welded to the lower part of the corrugation. This is also a more complex equipment, including automatic feeding, automatic clamping, automatic welding, etc. At present, transparent teaching elevator adopts manual welding and welding when assembling in China. The assembly welding process uses foreign photoelectric tracking system to realize automatic assembly welding, but the price is very high.
5.Body drying equipment
The equipment transformer drying process can be more widely used in the drying of the body. Thanks to this process, the practice table of the car circuit can be converted to the original hot air drying system. Using computers to control temperature and vacuum and compile software systems, the technology in this field is becoming more and more mature.