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 […]
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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 […]
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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 […]
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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 […]
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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, […]
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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 […]
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The future of gear technology in China
As human history enters the 21st century, it has become a consensus to build a digital earth. Manufacturing informatization brings […]
Scientific
Noncircular gear drive mechanism
An important research direction of gear geometry is noncircular gear transmission. Its complex tooth surface geometry and special transmission performance […]
Scientific
Research status of temperature field in gear system
The thermal behavior of the high-speed and heavy-duty gear system has a great influence on its bearing capacity. In the […]
Scientific
Surface strengthening technology of anti high strength automobile gear surface contact fatigue
1. Spraying technology of superfine composite materials In recent years, Chinese and Japanese companies have studied and applied the spraying […]
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The development of gear transmission technology in China
After the founding of new China, especially since the reform and opening up, the technology of gear transmission has made […]
Scientific
Design of eccentric displacement gear
The machining method of the eccentric modification gear generated by the modification method is the same as that of the […]
Scientific
Thermal behavior analysis of high speed and heavy load gear system
Gear transmission system is the core mechanism of mechanical equipment, which determines the performance of the whole machine. But for […]
Scientific
Surface strengthening of high strength automobile gear surface against contact fatigue by molybdenum disulfide coating
Molybdenum disulfide (MoS2), as a high quality solid lubricating material, has good antifriction, antiwear and bearing capacity. Molybdenum disulfide (MoS2) […]
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A historical review of the development of gear transmission in China
As we all know, China is an ancient country with thousands of years of civilization history, and it is no […]
Scientific
Transmission principle of eccentric gear and eccentric displacement gear
The transmission between the eccentric gears will produce the change of backlash. Therefore, when calculating the coefficient of deflection of […]
Scientific
Surface strengthening of high strength automobile gear surface against contact fatigue with manganese phosphate conversion coating
The application of manganese phosphate conversion coating technology in improving the surface strength of transmission parts first appeared in improving […]
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Causes and solutions of cold crack in automobile gear assembly welding
With the development of iron and steel, petrochemical industry, ship industry, electric power industry and automobile industry, all kinds of […]
Scientific
Measures to improve the structural performance of rocker gear shaft
According to the statistical analysis of the faults, it is found that the gears and bearings on the second shaft […]
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Scientific problems and development of surface strengthening of high strength automobile gears
1. Numerical simulation and scientific problems of gear surface strengthening In the field of scientific research and engineering technology, numerical […]
Scientific
Structure of gear box of shearer rocker
As one of the main equipment of the coal mining face, the shearer is required to have high reliability in […]
Scientific
Heat treatment of high strength automobile gear
The strengthening technology of gear heat treatment should pay attention to the control of surface integrity, that is, to control […]
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All the answers you want to know about the straight bevel gear
What are the characteristics of the straight bevel gear mechanism? Answer: 1) transfer the motion and power between two intersecting […]
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Shot peening of high strength automobile gear
Shot peening is a widely used method to improve the fatigue strength of gears, which can produce compression deformation on […]
Scientific
Failure mode and mechanism of high strength automobile gear
The automobile gear is in the state of continuous load operation. There are rolling and sliding between the meshing surfaces […]
Scientific
Research on surface strengthening technology of high strength automobile gear
Gear is an important part to transmit power in mechanical devices. The Japanese mechanical society has carried out systematic investigation […]
Scientific
Optimization and improvement of thin-walled gear for mechanical transmission mechanism of airlock in nuclear power plant
According to the above analysis, in order to thoroughly solve the undercut fracture accident of thin-walled gear and ensure the […]
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Here are all the answers you want to know about the worm gear
What are the characteristics of worm gear mechanism? Answer: (1) transfer the motion and power between the spatial staggered axes, […]
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Contact stress analysis of gear rack of automobile steering gear
The finite element mesh generation of contact is realized. In order to obtain more accurate contact stress of gear teeth, […]
Scientific
Failure analysis of thin-walled gear used for mechanical transmission mechanism of airlock in nuclear power plant
According to the failure mechanism analysis of thin-walled gear, the gear material is 40Mn2. In the process of gear meshing, […]
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Here are all the answers you want to know about helical gears!
How is the profile of helical involute curved surface of helical gear formed? Answer: when the generating surface of the […]
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Structure analysis of rack and pinion steering gear
Rack and pinion steering gear consists of steering wheel, steering shaft, steering gear, tie rod, steering trapezoid arm and steering […]
Scientific
Research on rack and pinion of automobile steering gear
As the key part to change the driving direction and keep the vehicle running in a stable straight line, the […]
Scientific
Failure mechanism analysis of broken teeth of thin-walled gear used in mechanical transmission mechanism of airlock in nuclear power plant
It is found that the broken tooth thin-walled gear is a 2 ″ straight cylindrical gear with 12 teeth, which […]
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For the question of industrial gear, come here to find the answer
What is modulus and graduation circle? Answer: the circle with M = P / π as modulus and m and […]
Scientific
Gear machining and surface integrity control
In order to improve the production efficiency of gear machining and ensure the surface integrity of the gear, the gear […]
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Surface integrity of gears and development trend of anti fatigue manufacturing technology
As the key component of transmission system, gear is not only the transmission power and energy, but also the inheritance […]
Scientific
Failure analysis of thin-walled gear for mechanical transmission mechanism of airlock in nuclear power plant
The gas gate of nuclear power plant runs through the inner and outer containment of reactor. Because of its complex […]
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Application of magnetic gear
A new type of external rotor magnetic gear composite motor is proposed by combining the magnetic gear and the BLDCM. […]
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Take you to learn industrial gear terms in depth
1.In general, what is the allowable center distance difference of spur gear? Generally, the tolerance of the reference value is […]
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Calibration of large gear sample plate
At present, there are many kinds of large gear measuring instruments have been applied, but in fact, there is no […]
Scientific
Influence of four factors on fretting friction instability of gear shaft shoulder
The numerical calculation of the fretting friction instability state of the gear shoulder during the operation of the gear shaft […]
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Explanation of the most complete gear industry terms
1.Modulus Module: the pitch circle of the gear is the basis for designing and calculating the dimensions of each part […]
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The development trend of measuring technology for large gears
For the measurement of large gears, there are many shortcomings in the off position measurement and in position measurement, which […]
Scientific
Gear in place measurement
Gear in place measurement refers to the measurement when the instrument is installed on the gear or on the machine […]
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China’s gear product upgrading needs to focus on high-end digital system
High end gear is the basic part of high-end equipment, and also the key neck clamping part. At the seminar, […]
Scientific
Big gear out of position measurement
In the field of gear measurement, the measurement of large and small gears has always been a technical problem, among […]
Scientific
Study on surface oxidation of Cr Mo Si steel used in automobile gearbox during gas carburizing
With the increasingly strict global regulations on carbon dioxide emissions and fuel consumption efficiency, automobile powertrain systems become more compact […]
Scientific
Analysis of micro torsional vibration mechanism of gear shoulder under complex working condition
In the gear transmission mechanism of complex power equipment, the gear shaft and the bearing are assembled by interference, so […]
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All the questions about industrial gears can be found here
1.What is the basic law of tooth profile engagement and what is the basic law of tooth profile engagement with […]
Scientific
Heat treatment of motorcycle gear
Normalizing treatment Normalizing is a heat treatment process in which the steel is heated to 30 ~ 50 ℃ or […]