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 […]
Scientific
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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 […]
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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 […]
News
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 […]
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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 […]
News
Analysis of the stress direction of the gear rack of the Three Gorges ship lift
There are two possibilities for the design water depth to be higher or lower than 3.5m in each ascending or […]
Scientific
Machining method of spiral bevel gear
There are two main machining methods of spiral bevel gears, forming method and generating method. Forming method The profile of […]
Scientific
Definition and source of backlash in precision gear drive
The total empty return of the gear transmission chain caused by the factors such as the increase of the gear […]
News
Analysis of the factors influencing the return difference of precision gear drive
Michalec, a British scholar, defines a high-quality gear with a tolerance of 0.0254-0.002 54 mm (0.001-0.0001 inch) as a precision […]
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Microstructure and properties of powder forging gear materials
Gear transmission of torque and power depends on the engagement of teeth, which is an important mechanical transmission part widely […]
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Correction of carburizing and quenching distortion of gear and gear shaft of reducer
1. Correction of gear distortion After carburizing and quenching, generally speaking, the increase of internal and external diameter is related […]
Scientific
Brief introduction to the cutting principle of Gleason spiral bevel gear
Traditional spiral bevel gear machining is based on the principle of “imaginary flat top gear”. At present, the basic idea […]
Scientific
Transmission error of circular arc tooth line cylindrical gear
Gear is the core and basic component of mechanical transmission equipment. Under the dynamic excitation, it will produce dynamic response […]
News
Research on the measuring instrument of single face gear engagement
The face gear transmission is a kind of transmission in which the cylindrical gear and the face gear mesh, which […]
News
Working principle of gear rack of ship lift for Three Gorges Dam
The ship lift of the Three Gorges project is located on the left bank of the Three Gorges Project and […]
Scientific
Spiral bevel gear is one of the most widely used gears
Spiral bevel gear is widely used in various mechanical products such as aircraft, ship and national defense equipment, machine tools, […]
News
Suggestions on research and development of rack and pinion rigs in China
At present, the rack and pinion multi-functional drilling rig developed by TTS sense in Norway, American augers in the United […]
Scientific
Discussion on failure mode of gear strength
Gear transmission is one of the most important mechanical transmission. More than 300 BC, Aristotle, the ancient Greek philosopher, expounded […]
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Development status of rack and pinion rigs abroad
Since EDM company of Norway (became part of TTS sense company in 2007) launched 250K rack and pinion workover rig […]
Scientific
Effect of oil on fatigue strength life and wear of gears
In addition to the lubrication of gears and bearings, ATF is also used for the lubrication and cooling of hydraulic […]