The development of China’s precision manufacturing industry is still relatively fast, but there is still a distance between China and developed countries. Manufacturing enterprises like spiral bevel gear are mainly small enterprises, without brand, it is difficult to compete with developed countries.
At present, China’s spiral bevel gear industry is still dominated by the expansion of quantity, which has formed excessive competition in the international market at the unified level. To change this development mode, we should adhere to the concept of innovation, innovate in the development and technical transformation of spiral bevel gear, and actively cooperate with scientific research institutions and colleges and universities to jointly develop new spiral bevel gear projects and strive to develop them In order to improve the status of spiral bevel gear wholesale in the global industrial division of labor, improve the anti risk ability and self bargaining ability, and enhance the sustainable development competitiveness of spiral bevel gear industry. China’s market has been eroded by the world spiral bevel gear industry. In order to have a long-term development of spiral bevel gear industry in China, it is necessary to adjust and optimize the industrial structure. We should not only inherit and give full play to the advantages of traditional spiral bevel gear industry, but also make great efforts to develop knowledge and technology intensive industries and emerging industries to promote the development of spiral bevel gear industry.
If China’s spiral bevel gear industry wants to improve its competitiveness and gain a place in the international competition, it is necessary to reasonably analyze the current situation and take measures to deal with the problems. We should not lose the traditional development advantages, but also combine the new knowledge and skills to improve the innovation ability, so as to promote the spiral bevel gear industry to enter a new stage, with a breakthrough development.
Although the gear industry is developing rapidly and there are more and more types, such as reducer spiral bevel gear, spiral bevel gear and so on, there are not many manufacturers specializing in gear mold, most of which are made by gear factory themselves, especially plastic gear in gear industry.
In terms of plastic gears, generally speaking, plastic gears and their molds are mainly distributed in two regions: Ningbo, Zhejiang Province, where there are more than 340 plastic gear factories, which is also the largest plastic gear mold production base in China; the other is Shenzhen Bao’an, which is dominated by Hong Kong funded enterprises with high product precision, which is mainly used for export. Among them, the demand for plastic gear mold is relatively large.
Throughout the current situation of gear mould in China, it can be said that there are mixed feelings. Fortunately, gear mold production has a certain foundation, and the development trend of plastic gear will bring more market space for gear mold; The worry is that there is still a gap between the level of domestic gear mould production and that of the world’s predecessors. Moreover, with the development trend of the gear industry, especially the plastic gear industry, the domestic response to market changes is not sharp enough, and the supporting research is difficult to keep up with the market demand. At present, medium and low-grade gear molds can be produced at home, and high-grade gear molds are mostly imported. The application scope of domestic gear mold can be roughly divided into three aspects: plastic gear mold, powder metallurgy gear mold and precision forging bevel gear mold.
It can be seen that there is still a large space for the development of China’s gear industry. Our company specializes in the production of spiral bevel gears and other products. The advanced equipment and technology ensure the quality of the products, which has been recognized by customers.
In bevel gear, according to the tooth length direction of the tooth, there are spur gear and curve gear. The straight bevel gear is formed by the intersection line of tooth length profile and pitch cone surface. If it is a curve, it is called curve gear.
At present, spiral bevel gear should be synonymous with curved bevel gear. According to the different curves, there are three kinds of spiral bevel gears, which belong to different companies. The hypoid gears (including circular arc bevel gears) designed by Gleason company of the United States, extended epicycloid gears of olicon company of Switzerland and quasi involute gears of Klingenberg of Germany.
In short, the Japanese and American car series are equipped with Gleason gears such as Buick and Toyota. European car lines such as Benz, BMW and Audi use orikon gear.
Spiral bevel gear is a kind of transmission parts with stable transmission ratio and low noise. It has different names in different areas, and is also called spiral bevel gear, spiral bevel gear, spiral bevel gear, circular arc bevel gear, spiral bevel gear, etc. Spiral bevel gear has high transmission efficiency, stable transmission ratio, large arc overlap coefficient, high bearing capacity, smooth transmission, reliable operation, compact structure, energy saving and material saving, space saving, wear resistance, long service life and low noise. Among all kinds of mechanical transmission, the transmission efficiency of spiral bevel gear is the highest, which has great economic benefits for all kinds of transmission, especially for high-power transmission; The transmission ratio of spiral bevel gear is always stable, which is often the basic requirement of transmission performance in the transmission of various mechanical equipment; the spiral bevel gear works reliably and has long service life.
Several tooth systems, characteristics and application fields of bevel gears
Bevel gear and hypoid gear are the type of gear transmission with intersecting shaft and staggered shaft respectively. But according to the characteristics of the tooth length curve, the form of the tooth height and the processing method, there are various classifications. Because the tooth length curve has a great influence on the transmission performance and special processing method is used, it is generally classified according to the tooth length curve.
Straight bevel gear: the tooth length direction of the tooth is straight line, and its extension line intersects the apex of the cone and the retraction tooth
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