Analysis of the development situation of heavy and general reducer industry
The heavy-duty and general-purpose reducer industry's product categories include all types of gear reducers, planetary gears and worm reducers, as well as a variety of special transmissions, such as speed-increasing devices, strip devices, and flexible transmissions. Various types of composite transmissions, including the device. The product service areas include metallurgy, nonferrous metals, coal, building materials, ships, water conservancy, electric power, engineering machinery and petrochemical industries. Manufacturers of heavy-duty and general-purpose reducer industries also coexist in various forms, such as foreign-funded enterprises, Sino-foreign joint ventures,
State-owned enterprises, joint-stock enterprises and individual enterprises have large scales with annual output value of several hundred million yuan and small to several million yuan. There are more than 100 enterprises with good living conditions and sound product quality control system. In 2005, the sales of the whole industry was about 20 billion yuan, of which the sales of foreign-funded enterprises accounted for about one quarter.
The product varieties, specifications and parameters of the key enterprises in the domestic reducer industry have been expanding in recent years. The product quality has reached the level of similar products in foreign advanced industrial countries, and it can fully assume the transmission equipment for the national economy. Heavy duty, some products are also exported to Europe, America and Southeast Asia.
At present, there are hundreds of standard series of universal reducers in China, which can basically meet the needs of general-purpose reducers in various industries. Based on the first generation of universal hardened gear reducer and arc cylindrical worm reducer series, the new generation of cylindrical and conical-cylindrical gear reducer and arc cylinder developed by Xi'an Heavy Machinery Research and completed standardization The worm reducer has been invested in the market. The outstanding features of the new generation of reducers are not only optimized for the performance parameters of the products, but also completely conform to the modular design principles in the series design. The product shape is more beautiful, more suitable for mass production, and more suitable for the continuous development of modern industry. And the increasingly high requirements for the basic parts of the product. In addition, Nanjing Gaojing Gear Co., Ltd. also promoted the PR series of modular gear reducers. However, in general, the development and update of domestic and foreign gearbox series products has been slow in recent years, and the gap with foreign counterparts in this area has a tendency to widen. Moreover, the demand from the market is also very unsuitable. The Xi'an Heavy Machinery Research Institute and other domestic units have begun to develop the development-level standardization work in this area this year.
In the manufacture of universal reducer, there are a large number of domestic manufacturers. For example, for various types of cylindrical gear cones - cylindrical gears or gears - worm reducer series products, the main domestic manufacturers are Nanjing Gaojing Gear Co., Ltd. Ningbo Dongli Transmission Equipment Co., Ltd., Jiangyin Gearbox Manufacturing Co., Ltd., Jiangsu Taixing Reducer Co., Ltd., Jiangsu Jinxiang Reducer Co., Ltd., Shanxi Pingyao Reducer Factory, etc. Object worm reducer, currently mainly produces arc cylindrical worm reducer, cone-bread cylindrical worm reducer, plane double enveloping toroidal worm reducer, etc. The main manufacturers are Jiangsu Jinxiang reducer limited. Company, Shougang Machinery Manufacturing Co., Hangzhou Reducer Factory, Hangzhou Wanjie Speed ​​Reducer Co., Ltd., Tianjin Wanxin Reducer Factory, Shanghai Pujiang Reducer Co., Ltd., etc., for various universal planetary gear reducers, including standard NGW series planets Gear reducers, including various types of rotary planetary reducers and closed planetary gears, etc. The main manufacturers include Jingzhou Giant Whale Machinery Co., Ltd., Luoyang Zhongzhong Gearbox Co., Ltd., Xi'an Heavy Machinery Research Institute, Shijiazhuang Branch Heavy Industry Co., Ltd., Inner Mongolia Xinghua Machinery Factory, etc.
In the development of various types of special transmission equipment, the recent progress made in China, such as the MDH28 mill edge drive transmission 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 1700 hot rolling main drive gear box produced has a maximum modulus of 30 and a weight of 180 tons. The gwc70/76 type 12,000 tons and packing marine gearbox produced by Hangzhou Qianjin Gearbox Co., Ltd. has a transmission power of 6250KW. The maximum power of the Lima series gearbox produced by Nanjing Gaojing Gear Co., Ltd. and Chongqing Gearbox Co., Ltd. has reached 3800KW, which was developed by Xi'an Heavy Machinery Research Institute, Luoyang Heavy Machinery Co., Ltd. and Jingzhou Giant Whale Transmission Machinery Co., Ltd. The series of heavy-duty planetary gearboxes manufactured by the company have also been widely used in mining, metallurgy, building materials, coal and hydropower industries. The input power of the series of planetary gearboxes for the roller press of the cement industry developed by Xi'an Heavy Machinery Research Institute has been Up to 1250KW, the planetary gearbox used in the aluminum rolling mill has the responsibility of the company, the Hangzhou Forwarding Box Co., Ltd., and the Xi'an Heavy Machinery Research Institute. The wind power transmission box series products have gradually replaced imported products and are widely used in the domestic wind power industry. . In the manufacture of large ring gears, the current domestic gear ring with a maximum diameter of 9.936 meters and a net weight of 80 tons has been manufactured by CITIC Heavy Machinery and used in the 50,000 tons of oxidation ball production line of WISCO Group. Large-scale drives for mills and rotary kiln, as well as large flexible transmissions for converters and sintering equipment, can be supplied in China without the need for further imports.
In the development of other types of new products, industry companies have also achieved a lot of results, such as the engineering vehicle gearbox developed by Xi'an Heavy Machinery Research Institute and the differential energy-saving speed control device for fans and pumps, Luoyang Zhongzhong Gearbox Co., Ltd. The large-scale mine hoist planetary gearbox, the grinding drive gearbox of Jiangsu Jinxiang Reducer Co., Ltd., the large three-ring transmission gearbox and transmission of Beijing Taifuli Transmission Co., Ltd., etc., have also been welcomed by the market and widely used. .
In terms of capacity expansion and technological transformation of industrial enterprises, in recent years, there has been a leap-forward development. This is due to the strong demand of the market in recent years. On the other hand, it is also subject to the expansion of production scale and improvement of manufacturing and manufacturing. Driven by the subjective desire to enhance the competitiveness of enterprises, the key processing equipment purchased by major domestic manufacturers in the past two years, such as large gear grinding machines, boring and milling machines, mechanic centers and heat treatment equipment, has accumulated more than 200 sets (sets). It is expected that the production capacity of the industry will more than double. The development of technical transformation work has 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. As the market demand declines and foreign counterparts enter the domestic market on a large scale, industry competition will inevitably further intensify, which will certainly promote mergers, acquisitions and even transformation among industrial enterprises.
In terms of product sales market competition, foreign manufacturers have become more and more powerful in China in recent years. SEW continues to deploy production and sales bases across the country to expand market share. FLEDER, Bonfair, Brevini and FORK, Sumitomo and other companies have also stepped up their pace of establishing production bases and sales centers in China, actively infiltrating into various industries, advanced management and management concepts of foreign manufacturers, and abundant markets. The actual combat and development experience and unique product series will pose challenges and impacts to domestic manufacturers. Domestic manufacturers will feel more and more fierce competition from domestic and foreign players.
In terms of the expansion and expansion of domestic transmission parts, the medium and small power medium and small size products are still exported in batches or exported with the mainframe. The share of the president is still relatively small, and efforts are made to improve the quality of the products. And expandability, and actively explore the international market, should be an important way for domestic enterprises to seek market development.
Throughout 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 for a short period of time. Can make progress. At present, the outstanding problems in the external gear reducer industry are that the industry's overall new product development capability is weak, process innovation and management level are low, and the enterprise management method is relatively extensive. A considerable proportion of products are still in the middle and low grades, lacking international influence. The product brand of Lili and the overall dispersal of the industry are still serious. Based on this, we will promote mergers and acquisitions and integration among the dominant enterprises in the industry, and form a number of group-type enterprises with certain market influence, large-scale and strength, and strong product research and development and technical support capabilities. We can maintain a certain advantage in the competition with foreign counterparts and continue to develop.
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