Function analysis of gearbox system of agricultural machinery tractor
The virtual design method of gearbox gear based on knowledge integrates knowledge engineering and parametric design technology, and develops the […]
Scientific
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Gearbox gear of agricultural machinery tractor based on knowledge
Due to the crisis of aging population and the sharp decrease of agricultural labor force, China attaches more and more […]
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Advantages of gear transmission in civil aircraft engines
In order to reduce the unstable factors, the designer thought of the gear transmission technology, which is different from the […]
Scientific
Knock test analysis of automobile transmission gear
According to the knock phenomenon of transmission gear, it is mainly divided into bench test and real vehicle test. In […]
News
Development of gear transmission technology for civil aircraft engine
For decades, the main structure of civil aircraft engine has not changed until the appearance of gear transmission technology. Gear […]
Scientific
Dynamic characteristics of Cracked Gear Transmission System
With the all-round development of the mechanical industry, the requirements of the mechanical equipment for the transmission system are higher […]
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To improve the quality of gear steel and promote the high-end gear industry
In particular, the plan proposes to implement a special plan for improving the quality of gear steel. At present, the […]
Scientific
Theoretical research and solution method of knock model of automobile transmission gear
The phenomenon of gear knocking in automobile transmission belongs to the NVH dynamics problem of transmission system. The research idea […]
News
“13th five year plan” gear industry will make full efforts to the high end
In the “13th five year plan” for the development of China’s gear industry (hereinafter referred to as the “plan”) previously […]
Scientific
Research on the knock model of automobile transmission gears based on multi pair gears
Automobile transmission includes many pairs of helical gear pairs, multiple bearings and synchronizer assemblies, etc. when considering the spatial meshing […]
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Stable development of gear industry and development towards high end
Recently, Professor Zhang Ruifen of ZHY gear said at a gear industry seminar: “there are many fundamental technical problems of […]
Scientific
Research on the knock model of automobile transmission gears based on single pair of gears
With the rapid development of the automobile industry, automobile users have higher and higher requirements for the comfort of automobile […]
Scientific
Effect of Variation Coefficient of Gear Center Distance on Gear Sliding Rate
The figure shows the gear drive with the number of teeth (Z1=31, Z2=32), modulus (m=6), pressure angle (a=20 degrees), crest […]
Scientific
Influence of Coefficient of Tooth Top Height on Sliding Rate of Gear
The diagram shows the variation trend of gear crest height coefficient when the number of teeth (Z1=31, Z2=32), modulus (m=6), […]
Scientific
The influence of gear number (transmission ratio) on gear sliding rate
Figure 1 shows the change trend of the sliding rate with the number of teeth (transmission ratio) of the gear […]
Scientific
Analysis of the slip rate curve of gear teeth
Theoretically, when k is engaged at N2, η 2 = ∞, η 1 = – 1; when k is engaged […]
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Independent innovation becomes the main theme of gear industry
In recent years, the gear industry is asking a question, where is the development direction of the industry? Where is […]
Scientific
Calculation of relative sliding rate of involute spur gear teeth
The ratio of the relative tangential speed of the gear pair between the tooth surfaces at the meshing point and […]
News
Analysis of sliding rate of involute gear transmission
In the meshing process of involute gear teeth, the linear speed at a certain meshing point is different, except for […]
Scientific
Carburizing and quenching process of gear surface
Gear, as a widely used mechanical component in mechanical transmission, has the characteristics of accurate transmission ratio, high bearing capacity […]
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Gear industry will usher in the fourth opportunity
Gear is a key basic component with large quantity and wide range, which is almost used in various fields of […]
Scientific
Research on Design and Manufacture of Laser Cutting Chuck Drive Gear Pair
Laser cutting equipment mainly uses heat energy generated by laser beam emitted by laser to cut pipes with motion mechanical […]
Scientific
Additive manufacturing and secondary machined face gear
As an additive manufacturing technology, 3D printing is a new technology that subverts the traditional manufacturing, and has become the […]
Scientific
The influence of Involute Harmonic Gear Tooth on bending stiffness and stress concentration
In order to reflect the influence rule of parameters on the maximum circumferential stress, dimensionless radius of chamfered root of […]
News
Future development of face gear manufacturing technology
The manufacturing technology of face gear is based on their manufacturing principles, which can be divided into three categories: Based […]
Scientific
Single tooth dividing cutting and gear grinding with straight edge cutter
Because the former three machining methods are based on the simulation of meshing between the small wheel (or the profile […]
News
Analysis and diagnosis of abnormal noise of tractor chassis gearbox
Abnormal noise is a common fault of tractor chassis. The abnormal noise is mainly caused by the damage of the […]
News
Stress Analysis of Spur Gear Tooth Face during Powerful Shot Blasting
Shot peening is an important key link in gear production and manufacturing. When the steel shot repeatedly impacts the tooth […]
Scientific
Maximum circumferential stress of ring gear considering the influence of gear teeth
1. Maximum circumferential stress of ring gear in design specification Considering the influence of tooth parameters, load distortion of flexible […]
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Milling and planing of face gear
In recent years, Professor Tang Jinyuan’s team has explored the generalization of cutters for the processing of single piece and […]
Scientific
Cutting and grinding gear with disc cutter
Dr. Stadtfeld of Greenson first outlined the idea of using disc wheel to machine face gear. It has the advantages […]
Scientific
Distortion control of heating process in gear manufacturing
In view of the distortion caused by various factors, such as the release of processing stress, the different time and […]
Scientific
Gear Flexible Gear Profile Parameters
1. Basic profile parameters and definitions Taking the involute profile as an example, Figure shows an illustration of the involute […]
News
Identification of spiral spring on agricultural machinery
The coil spring can be divided into compression spring, torsion spring and tension spring according to the different loading conditions. […]
Scientific
Test results and discussion of ferrous powder metallurgical gears
1. Gear Fracture and Analysis According to user feedback, the gear breaks under heavy load and the fracture occurs in […]
Scientific
Sample preparation and test method for ferrous powder metallurgical gears
A gear tooth with fracture failure was randomly selected for fracture analysis. The fracture was cut off by wire cutting […]
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Fracture failure analysis of ferrous powder metallurgical gear
Gear is a key structural part in modern transmission technology, its main function is to transmit torque reliably and without […]
News
Heat treatment equipment and process of gears for automobiles and tractors
The correct heat treatment process must have the corresponding heat treatment equipment to ensure that the Shanghai brand car, Shanghai […]
Scientific
The stress and distortion of gear manufacturing in heating
Generally, the heat treatment distortion of the controlled workpiece is focused on “quenching distortion”. The reason is that the quenching […]
News
Identification of rolling bearing on agricultural machinery
There are many kinds of rolling bearings used in agricultural machinery. Only taking single row radial ball bearing and single […]
News
Comparison of laser quenching technology for gears
As the core part of most machines, the performance of gears directly determines the degree of mechanical excellence. In the […]
News
Heat treatment technology and service life of automobile and tractor gears
The service life of automobile and tractor gears is related to many factors, such as steel material, forging quality, precision […]
Scientific
The conversion of cutting movement of spiral bevel gear
According to the analysis of the cutting process of spiral bevel gear tooth surface, based on the generation principle of […]
News
The development direction of automobile gear factory in the future
In the future, the trend of automobile gear production plant will be toward design informatization, equipment intelligence, process automation, management […]
News
Identification of gears on agricultural machinery
Gear is an important part of agricultural machinery, which has a wide range of applications. Although the working conditions of […]
News
Profile of gear
Since the meshing line coincides with the common normal line of the tooth profile, and it is a fixed line, […]
News
The history and present situation of the research on the efficiency of gear transmission
In mechanical transmission, compared with other transmission devices, gear transmission has the highest efficiency. However, with the increase of transmission […]
Scientific
Meshing force of planetary gear drive system under continuous operation with large load
The meshing frequency and its double frequency of each pair of wheels constitute the main vibration excitation components of the […]
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Processing technology and existing problems of automobile and tractor gears
The gears of automobile and tractor are the basic parts with large quantity and wide range. In 1972, China produced […]
Scientific
Design and motion analysis of cutter for three-axis milling of spiral bevel gear
Based on the analysis of the cutting principle of the tooth surface of the spherical involute involute involute spiral bevel […]
News
Error curve of rack and pinion steering mechanism
The parameters of the steering mechanism of a model with rack and pinion steering mechanism are as follows: the wheel […]
News
On the disassembly and installation of agricultural machinery
At present, China’s agricultural machinery repair is mainly replacement repair, which can not be separated from disassembly. Disassembly and installation […]
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Study on the efficiency of gear transmission
Gear transmission is the most common mechanical transmission in modern machines. It is a main form of transmission of machine […]
Scientific
Meshing force of planetary gear system under large load
The dynamic load of the system is calculated when the speed is 500r / min and the load is 500N […]
Scientific
The cutting principle of concave tooth surface of spiral bevel gear based on the generation line of tooth surface
This paper takes the concave tooth surface of right-hand spiral bevel gear as an example to analyze and study the […]
News
Error analysis of rack and pinion steering mechanism
At present, the steering mechanism used in automobile can not fully meet the Ackerman steering principle, and can not realize […]
News
Trouble shooting of transmission box of large wheeled tractor
1) There is noise during operation. The causes of the running noise of the transmission case specifically include: the transmission […]
Scientific
Impact vibration characteristics of planetary gear train
Planetary gear drive is widely used in various industrial fields due to its large power weight ratio, high load-carrying capacity […]
Scientific
Generating principle of convex tooth surface of spiral bevel gear
In order to intuitively analyze the generation principle of right spiral bevel gear convex tooth surface, the method of establishing […]
News
Trouble shooting of gearbox of large wheeled tractor
1) Difficult to shift. The gearshift difficulty caused by gearbox is usually caused by excessive wear or deformation of the […]