Gears are the main basic components that restrict the development of China's machinery manufacturing industry. There are more than 200 gear factories in China (including two categories of vehicle gears and industrial gears), with an annual output value of about 250 billion yuan. In the 21st century, the machinery industry will remain an indispensable key pillar of the national economy.Relevant experts predict that by 2020, China's machinery and transportation industry will catch up or surpass some developed countries.Therefore, it is necessary for the gear operation to formulate a development strategy for the 21st century, so as to adapt to the competition of the globalized knowledge economy.
According to Yubo Zhiye Market Research Center, with the rapid development of the domestic economy in recent years, the export volume of the heavy machinery industry has increased, and the reducer industry as an important basic industry has developed extremely rapidly.Reducer enterprises are expanding their production and sales scale, and their processing capacity and technical level continue to improve.The future prospects of the reducer market industry will be bright.
From the beginning of my country's gear reducer development to today, the effect is not very significant, and the manufacturing mode has not changed. Compared with this model, many foreign gear reducer enterprises rely on technology, management, capital, etc. The advantages in terms of aspects have achieved a unique market share, and gradually entered the reducer market in China.In the face of the strong preemption of foreign products in my country's reducer market, China's reducer industry is facing a serious market crisis, and this crisis has also greatly stimulated the domestic reducer enterprises, prompting them to form a counterweight when they come. It has gradually increased investment in technology and management, and strived to compete with foreign products and defend the domestic reducer market.
According to preliminary statistics, the industries with a large amount of reducers mainly include: electric machinery, metallurgical machinery, environmental protection machinery, electronic appliances, road construction machinery, chemical machinery, food machinery, light industrial machinery, mining machinery, conveying machinery, construction machinery, building materials Machinery, cement machinery, rubber machinery, water conservancy machinery, petroleum machinery, etc., the number of reducer products used in these industries has accounted for 60% - 70% of the total number of reducers used in various industries in the country.
Status of reducer at home and abroad
Foreign countries are very mature in the design and production of advanced reducers. Some well-known manufacturers have more than XNUMX years of experience in reducer production, and their market shares are also very considerable.For example, the flender reducer of Siemens is the largest reducer supplier in the industry at present, and has high attainments in product structure design and manufacturing.
Foreign reducers are widely used in electric power, food, construction, mining, water conservancy and many other industries, and their manufacturing and production standards are higher than domestic ones. my country's hard-tooth surface reducer standards also come from Siemens' production standards.The development history of domestic reducers is also nearly 40 years old. There are many manufacturers and various forms. At present, there are hundreds of standard series of various general reducers in China, which can basically meet the needs of various industries for general reducers.However, compared with foreign countries, there is still a big gap in the level of reducer in my country. The more prominent problems existing in the foreign reducer industry are that the industry's overall new product development capability is weak, process innovation and management level are low.
With the rapid development of the domestic economy in recent years and the increase in the export volume of the heavy machinery industry, the reducer industry, an important basic industry, has developed extremely rapidly.Reducer companies are expanding their scale of production and sales, and their processing capabilities and technical levels have continued to improve.The future of the reducer market industry prospects will be very good.
Heavy machinery market demand is large
While the market demand for heavy machinery has increased, the industry has also carried out fruitful work in product upgrades, integration of industrialization and industrialization, and energy conservation and emission reduction.In terms of product upgrades, the pace of technological updates of old products that have remained unchanged for many years is accelerating.Companies in the gantry crane industry adopt joint or independent research and development methods to innovate old products one after another, forming an upsurge of industry product upgrades.Beijing Research Institute of Crane and Transportation Machinery has jointly carried out series of lightweight work on bridge cranes with many enterprises, and has made phased progress.The industry actively introduces variable frequency speed control transmission technology, remote control and information technology to accelerate the upgrading of products to high-end technology.The crane's gearbox-less variable frequency drive main hoisting device developed by the industry has begun to test the water in the market.
The international market's demand for heavy machinery equipment and spare parts will also increase.With the gradual recovery of the economies of European and American countries, the re-establishment of the status of the real economy in the national economy, and the basic construction needs of developing countries, heavy machinery products will have more room for development in the international market.
The development trend of gear reducers in heavy machinery is promising
As the country attaches great importance to the machinery manufacturing industry, the acceleration of the localization of major equipment and the start of construction projects such as urban transformation and venue construction, the market for reducers is promising, and the entire industry will continue to maintain a rapid development trend, especially for gear reducers. The growth will be greatly improved, which is related to the use of gear reducers in most imported equipment.
From the observation of the current situation of China's gear reducer industry and the investment prospect analysis report, it is understood that the reducer is a power transmission mechanism. The purpose of using it is to reduce the speed and increase the torque.It has a wide variety of different models, and different types have different uses.The products designed for the reducer for heavy machinery include various gear reducers, planetary gear reducers, worm gear reducers and cycloid pin gear reducers, as well as various special transmission devices.
The development trend of reducer
①High level and high performance.Cylindrical gears generally adopt carburizing, quenching and tooth grinding, and the carrying capacity is increased by more than 4 times, with small size, light weight, low noise, high efficiency and high reliability.
②Building block type combination design.The basic parameters adopt the priority number, the size specifications are neat, the parts are universal and interchangeable, the series is easy to expand and the pattern is refurbished, which is conducive to the organization of mass production and the reduction of costs.
③Diversified types and many variant designs.Get rid of the traditional single base installation method, add hollow shaft suspension type, floating support base, integrated connection of motor and reducer, multi-directional installation surface and other different types to expand the scope of use.
At present, the driving equipment in engineering has been more and more driven by electric motors. Due to the high speed of the electric motors and low torque, the actuators are generally unable to directly drive the actuators. This requires the use of a reducer to transmit power.The gear reducer commonly used in engineering is the gear reducer. The gear reducer has a long history of application. The rapid development of modern industry also puts forward higher requirements on the reducer, which is mainly manifested in the requirement for higher power capacity and more Short R&D cycle, large torque range, various design forms, long life and high reliability, etc.The significance of this design is to optimize the traditional reducer in combination with modern industrial requirements and the current production level, and through this design, you can reconsolidate and comprehensively use the knowledge you have learned, exercise your design calculation ability, cultivate and Improve your own access to and selection of standard parameters, the use of calculation formulas, and drawings.