History of gear transmission in China
As we all know, China is an ancient country with a civilization history of thousands of years. Gear transmission technology […]
As we all know, China is an ancient country with a civilization history of thousands of years. Gear transmission technology […]
Automobile gears are usually made by alloy carburizing. The gear blank generally needs to go through multiple cold and hot
In forging industry, in order to improve design efficiency, reduce manufacturing cost and improve product quality, it is necessary to
The selection of grinding wheel mainly considers abrasive, particle size, hardness, binder, etc. Abrasive The selection of grinding wheel abrasive
As one of the most basic transmission parts in the mechanical industry, gear is used to adjust the speed and
Large gear is an important mechanical transmission part in mining machinery, steam turbine, generator and other large equipment. Its quality
Some situations and solutions encountered in the forged gear blank production line are described below. (1) During parting, the forged
Straight bevel bevel gear is a component of automobile differential, which is made of low-carbon alloy steel. Its normal warm
The spiral bevel gear formed by precision forging has the advantages of reasonable streamline distribution, less material waste and high
The precision forging process of spiral bevel gear has high requirements for pre forming and forging process parameter design. Reasonable
The material deformation, physical field distribution and die elastic deformation of final forging process are analyzed. The shape and size
According to the process scheme of “blanking upsetting punching compound rolling preform final forging”, the rings rolled to the required
The final forging process ultimately determines the quality of forgings, so it is very important to optimize the final forging
As the project requires to find a practical production way suitable for the factory, a high-speed, single action and single
In order to study the preform process in the forging process of spiral bevel gear, the thermal mechanical coupling finite
The defects in the forging process of helical gear are shown in the figure. In the process of helical gear
For the research of traditional helical gear forging process, scholars and researchers at home and abroad mainly focus on the
Taking the precision forging process of automobile driven spiral bevel gear as the research object, the metal dynamic law and
Gear precision forging has developed greatly in recent decades. More and more manufacturers and users pay attention to manufacturing gears
The driven spiral bevel gear mechanical transmission system plays the role of adjusting speed and transmitting power. It has the
Because the load of gear transmission system fluctuates greatly in the alternating area of tooth number, it will cause vibration
Generally speaking, the precision forging technology of spiral bevel gear has been greatly developed in theoretical research, process test, engineering
As a transmission part, gear has very strict requirements for dimensional accuracy. However, under the forming condition, the die will
In precision forging process, die technology is closely related to the performance, accuracy and processing mode of parts. The development
The forming and filling of spiral bevel gear is complex. The process analysis of forging should focus on the plastic
The level of gear precision forging technology represents the development of a country’s manufacturing industry to a certain extent. The
The transplanting mechanism is the core working part of the rice transplanter, which realizes the action of transplanting and transplanting.
In order to further improve the machining efficiency of rough cutting soft tooth face gears with straight edge tools, Dr.
Precision forging technology has obvious advantages: low cost, high efficiency, energy and material saving, high precision and so on. There
Hypoid gear is a key part in the transmission system of automobile drive axle. Its tooth surface meshing quality directly
Face gear drive is a transmission mechanism in which involute cylindrical gear (small wheel) meshes with bevel gear, as shown
Involute ring gear ball gear is a new type of gear mechanism, which plays a key role in realizing multi
The workpiece processed by precision forming technology can meet the requirements of parts with little or no processing, so precision
Ball gear is a new type of gear transmission mechanism. The flexible wrist mechanism of painting robot developed by trallfa
With the continuous development of the world automobile industry, the machining technology of spiral bevel gear is also changing, and
Spiral bevel gear transmission mainly transmits the motion and power between vertical shafts, which requires the existence of bevel gear
Spiral bevel gear is mainly used in high-speed and heavy-duty staggered shaft transmission. The gear pair has compact structure and
At present, this spectrum analysis method based on the envelope of the signal generated by high-frequency impact excitation has been
The steering system is an important part of the vehicle safety system. The steering shaft tooth is a core part
The shearer needs to work in the underground roadway of the coal mine, and its working environment is poor. An
Firstly, the cold rotary forging precision forming process of bevel gear is systematically studied. This paper makes a systematic theoretical
The stress released in the grinding process of gears generally comes from two aspects: one is the residual stress formed
In recent years, the research and application of CAD / CAPP Technology in gear mostly focus on the design of
Bevel gear is widely used in mechanical transmission, especially in automobile transmission mechanism. The traditional bevel gear processing adopts the
Gear is an important basic part of mechanical products. Gear grinding is a finishing process of gear processing. Gear grinding
Swing rolling, namely swing rolling, also known as axial rolling, is a new plastic processing technology gradually and widely used
1. Processing with Norton 3SG60 grinding wheel (1) rough grinding: the 1st ~ 3rd cutters are in the form of
The general plastic precision forming process is precision die forging, which is a less cutting process gradually developed from general
Taking the transmission gear of heavy equipment as the research object, the fatigue crack propagation and fatigue fracture of gear
For the finish machining of hardened cylindrical gears, gear grinding technology is a common choice at present. On the premise
The model used for the numerical simulation of gear bending fatigue is the same as that used in the bending
Hypoid gear is widely used in aviation, automobile and other fields. As an important index to predict its dynamic performance,
1. Technical analysis of forging process In offshore engineering, the requirements for large herringbone gears are relatively high. The original
When testing the bending fatigue of 42CrMo heavy equipment transmission gear by experimental method, the data results have obvious advantages,
Before the formal bending fatigue test, the load level of the test needs to be determined. Pick two from the
The bending fatigue characteristic curve and bending fatigue limit stress of the test gear shall be combined according to different
1. Advantages of large herringbone gear in aviation and ocean engineering The diameter of large gears used in aviation and
The transmission gear of heavy equipment used in the bending fatigue test is designed based on the gear applied in
Among the key areas of China’s planning, marine engineering is the most important project and development field. Marine engineering includes
The test adopts the form of single tooth loading. It is necessary to design special fixtures according to the standard