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Jiangyin Ke'an Transmission Machinery Co., Ltd. with our understanding of basic knowledge of reducer
Reducer matching speed and torque transfer function between motor and implement mechanism, in the modern machinery is widely applied in the.
Reducer by end use can be divided into general and special reducer reducer two categories, the design, manufacture and use of different features.
In twentieth Century, 70's, the world reducer technology has got great development, combination and the development of new technology revolution. The following trends reducer general:
High level, high performance. Cylindrical gear generally adopt carburizing and quenching, grinding, the bearing capacity is improved more than 4 times, small volume, light weight, low noise, high efficiency, high reliability.
The block combination design. The basic parameters of the priority number, size regular, strong universality and interchangeability of parts, easy to expand and retrofit to series, mass production and reduce costs.
The type of diversification, multi variant design. Get rid of the traditional single base installation, add the hollow axle suspension type, floating support base, motor and reducer one connection, multi azimuth mounting surface of different types, expand the scope of use.
The main factors to improve the level of the reducer are:
① theory more perfect knowledge, more close to the actual (such as gear strength calculation method, modification technology, deformation calculation, optimization design method, the root of smooth transition, new structure etc.).
The use of good material, a variety of high quality alloy steel forgings for general use, materials and heat treatment to improve quality control standards.
The more reasonable structure design.
To improve the machining precision to ISO56 level.
To improve the quality and service life of the bearings.
The lubricating oil to improve the quality of.
Since 60's of the twentieth Century, China has formulated the standard JB1130 - 70 "cylinder gear reducer" and a number of general reducer, in addition to the host plant self supporting the use of, also formed a number of speed reducer factory specializing in the production of. At present, the national production reducer enterprises have hundreds, with an annual output of about 250000 general reducer, made a contribution to the mechanical product development in china.
Reducer 60 years of the twentieth Century are mostly made with reference to the Soviet Union in twentieth Century the 40s-50s technology, although some development, but limited to the level of technology and equipment conditions at that time, the design, the overall level and international level have a larger gap.
Since the reform and opening up, China introduced a number of advanced processing equipment, through the introduction, digestion, absorption of foreign advanced technology and scientific research, and gradually mastered the design of high speed and low speed and heavy-duty gear device manufacturing technology. Material and heat treatment quality and the gear machining accuracy are improved, the manufacturing precision universal cylindrical gear from JB17960 8-9 level increased to GB1009588 6 level, manufacturing precision of the high-speed gear can be stabilized at about 4-5. Part reducer adopts hard toothed surface, volume and quality decreased obviously, bearing capacity, service life, the transmission efficiency is improved greatly, to save energy and enhance the overall level of the host plays a big role.
Our own design high speed gear manufacturing reducing (increasing) power transmission has reached 42000kW, gear circumferential speed of more than 150m/s. However, the majority of our reducer technology level is not high, the old products cannot be replaced immediately, the new and old products co-exist transition will experience a longer period of time.
Many types of speed reducer is, in accordance with the drive type may divide into the gear reducer, the worm reducer and planetary gear reducer; according to transmission of different series can be divided into single level and multi-level reducer; according to the gear shape can be divided into cylindrical gear reducer, bevel gear reducer and cone - cylinder gear reducer; according to the arrangement the transmission of the form can be divided into expansion, split and coaxial reducer.

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