Brief description of the development status of heavy-duty and universal reducer industry

The heavy and universal reducer industry includes a variety of gear reducers, planetary gears, and worm reducers, as well as a variety of special transmissions, such as speed-increasing devices, elemental devices, and flexible drives. Various types of compound transmissions, including devices. The field of product service involves industries such as metallurgy, non-ferrous metals, coal, building materials, ships, water conservancy, electric power, construction machinery and petrochemicals. Heavy-duty and general-purpose reducer manufacturers also coexist in many forms, such as foreign-funded enterprises, Chinese-foreign joint ventures, state-owned enterprises, joint-stock companies, and individual companies, with scales of up to an annual output value of several hundred million yuan and as low as several million yuan. Not equal. There are more than 100 companies with sound living conditions and a sound product quality control system. In 2005, the total industry sales were about 20 billion yuan, of which foreign-funded enterprises accounted for about a quarter of sales.

The product variety, specification and parameter coverage of the key domestic reducer industry companies have been continuously expanding in recent years. The product quality has reached the level of similar products in foreign advanced industrial countries, and can fully support the transmission of transmission devices for various industries in the national economy. Responsibility, some products are also exported to Europe, America and Southeast Asia.

At present, the standard series of various types of universal reducers in China has reached several hundred, and it can basically meet the demand for universal reducers in various industries. On the basis of the first-generation general-purpose hardened gear reducer and circular-arc worm reducer series products, a new generation of cylindrical and conical cylindrical gear reducers and arc cylinders developed and completed by Xi'an heavy machinery research and development has been standardized. Worm reducer has been put into the market. The outstanding feature of the new generation of reducer is not only to further optimize the product performance parameters, but also to fully comply with the modular design principles in the series design, product modeling is more beautiful, more suitable for mass production, more adaptable to the continuous development of modern industry The increasingly high supporting requirements for basic product products. In addition, Nanjing Gaojing Gear Co., Ltd. also promoted PR series modular gear reducer products. However, overall, the development and renewal of domestic and foreign reducer series products have been slow in recent years, and the gap with foreign counterparts in this area has widened. Moreover, with the market's needs are also very inappropriate, Xi'an Heavy Machinery Research Institute and other domestic units have begun this year's development-level standardization work.

In the manufacture of universal reducers, there are a large number of domestic manufacturers, such as various types of spur gear machine conical - spur gear or gear - worm reducer products, the main domestic manufacturers are Nanjing High Precision Gear Co., Ltd. , Ningbo Dongli Transmission Equipment Co., Ltd., Jiangyin Gearbox Manufacturing Co., Ltd., Jiangsu Taixing Reducer Co., Ltd., Jiangsu Jinxiang Reducer Co., Ltd., and Shanxi Pingyao Reducer Factory. Object worm reducer, the current domestic production of arc cylindrical worm reducer, cone bread envelope cylindrical worm reducer, flat secondary enveloping hourglass worm reducer and other types, the main manufacturer of Jiangsu Jinxiang reducer limited Company, Shougang Machinery Manufacturing Co., Ltd., Hangzhou Machinery Factory, Hangzhou Wanjie Gear Co., Ltd., Tianjin Wanxin Reducer Factory, Shanghai Pujiang Reducer Co., Ltd., and various general-purpose planetary gear reducers, including the standard NGW series of planets Gear reducers, including various types of rotary planetary gear reducers and enclosed planetary gears, are inspected. The main manufacturers are Jingzhou Giant Whale Machinery Co., Ltd., Luoyang Zhongzhong Gears Co., Ltd., Xi'an Heavy Machinery Research Institute, and Shijiazhuang Branch. Heavy Industry Co., Ltd., Inner Mongolia Xinghua Machinery Factory.

In the development of various kinds of special-purpose transmission machine manufacturing, the domestic has made significant progress in recent years, such as the MDH28 mill edge drive transmission device produced by Chongqing Gearbox Co., Ltd., its maximum power has reached 7000KW, transmission torque Up to 5000KN.m, with a total weight of 46 tons, the maximum module of the 1700 hot continuous rolling main transmission gear box produced is 30, and the weight is 180 tons. The gwc70/76 type 12,000 tons and marine gearbox produced by Hangzhou Advance Gearbox Co., Ltd. have a transmission power of 6250KW. The maximum power of the series of gearboxes produced by Nanjing Gaoqin Gear Co., Ltd. and Chongqing Gearbox Co., Ltd. has reached 3,800 KW. It was developed by Xi'an Heavy Machinery Research Institute, Luoyang Heavy Gearbox Co., Ltd., and Jingzhou Giant Whale Transmission Machinery Co., Ltd. The manufactured heavy-load planetary gearbox series products have also been widely used in mines, metallurgy, building materials, coal, and hydropower industries, among which the input power of the roller press suspension series planetary gearboxes of the cement industry developed by the Xi'an Heavy Machinery Research Institute has been Up to 1250KW, planetary gearboxes for aluminum rolling mills, wind power generation speed increaser series products developed by Hangzhou Sifang Heavy Industry Co., Ltd. and Xi'an Heavy Machinery Research Institute have gradually replaced imported products, and are widely used in the domestic wind power industry. . In the manufacture of large ring gears, China's largest ring gear with a diameter of 9.936 meters and a net weight of 80 tons has been manufactured by CITIC Heavy Machinery and is used in the production line of an annual output of 5 million tons of oxide balls from Wuhan Iron and Steel Group. This is used in large-scale sintering machines. Large-scale drives for mills, mills, and rotary kilns, as well as large flexible transmissions for converters and sintering equipment, can be supplied domestically without the need for further imports.

In the development of other types of new products, industry companies have also achieved a lot of achievements, such as the construction of transmission gear and fan and differential energy-saving speed-regulating devices for pumps and gears developed by Xi’an Heavy Machinery Research Institute, Luoyang Zhongzhong Gears Co., Ltd. The large mine elevator planetary gearbox, the mill drive gearbox of Jiangsu Jinxiang Reducer Co., Ltd., and the large three-ring transmission gearbox and transmission of Beijing Taifuli Transmission Co., Ltd. have also been welcomed by the market and have been widely used. .

In terms of capacity expansion and technological transformation of industrial enterprises, they have seen a leap-forward development in recent years. This has benefited from the strong market demand in recent years. On the other hand, they have also been affected by the expansion of production scale and the improvement of manufacturing and manufacturing. In order to further drive the subjective desire of the competitiveness of enterprises, the key processing equipment purchased by major domestic product manufacturers in the past two years, such as large gear grinding machines, boring and milling machines, technical centers, and heat treatment equipment, has accumulated more than 200 units (sets). It is expected that the industry's production capacity will more than double, and the development of technological reforms will certainly have the objective effect of reviewing the scale of the industry, production concentration, and competitiveness. However, there are still many practical problems such as the large number of industrial enterprises, small specifications, and uneven levels. Therefore, with the decline of market demand and the large-scale entry of foreign counterparts into the domestic market, competition in the industry will inevitably intensify, which will certainly promote mergers and acquisitions, integration, and even transitions among industry and enterprises.

In terms of product market competition, foreign companies have become increasingly strong in China in recent years. SEW continues to deploy production and sales bases throughout the country to expand its market share. Companies such as FLEDER, Bangfei, Brevini, FORK, and Sumitomo have also stepped up the pace of establishing production bases and sales centers in China, actively infiltrating into various industries, and advanced management and business concepts of foreign manufacturers, and a rich market. The actual combat and expansion of experience and unique product series will bring challenges and impacts to domestic manufacturers. The domestic manufacturers will feel more and more fierce competition from domestic and foreign competitors.

In terms of the expansion and expansion of domestic transmission products, it is still the main form of multi-medium, low-power medium and small-size products exported or exported with the host. The share of presidents in this area is still relatively small, and efforts are made to improve the quality of products. And expandability, and actively explore the international market, should be an important way for domestic companies to seek market development.

Looking at the current situation of the domestic reducer industry, in order to maintain the healthy and sustainable development of the industry while fully affirming the continuous development and progress of the industry, we should also see the existing problems, and actively study countermeasures and take measures to strive in a relatively short period of time Can make progress. At present, the most outstanding problems in the industry with the external reducer industry are that the industry’s overall new product development capability is weak, process innovation and management are low, and corporate management practices are relatively extensive. A considerable percentage of products are still low-grade and lack international influence. Force product brand, the overall industry scattered, chaotic situation is still more serious. Based on this, to promote mergers and acquisitions among industry-leading companies, and to form a number of group companies with a certain market influence, brands with large scale and strength, and strong product R&D and technical support capabilities. In order to maintain a certain advantage in the competition with its foreign counterparts and to continue to develop.