Finite element analysis of forging process of spiral bevel gear
According to the process scheme of “blanking upsetting punching compound rolling preform final forging”, the rings rolled to the required […]
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Scientific
Gear cutting test on shaft machining center
The proposed gear cutting method can be directly realized by using a 5-axis machining center. When the vertical machining center […]
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Numerical simulation of final forging process of spiral bevel gear
The final forging process ultimately determines the quality of forgings, so it is very important to optimize the final forging […]
Scientific
Gear cutting processing of helical gear blank conical end mill
In the case of machining helical gears, the tool moves along the rotation axis of the gear blank, which is […]
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Gear precision forging technology warm forging process
As the project requires to find a practical production way suitable for the factory, a high-speed, single action and single […]
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Preform technology in forging process of spiral bevel gear
In order to study the preform process in the forging process of spiral bevel gear, the thermal mechanical coupling finite […]
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Analysis of forging defects of helical gears
The defects in the forging process of helical gear are shown in the figure. In the process of helical gear […]
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Forging process of helical gear based on DEFORM
For the research of traditional helical gear forging process, scholars and researchers at home and abroad mainly focus on the […]
Scientific
Meshing stiffness and error model of Helical Gear Considering modification
The helical gear can be regarded as a sheet helical gear. The helical gear is divided into m sheet helical […]
Scientific
Adjustment method of module, number of teeth and pressure angle in gear cutting of conical end mill
In this method, the gear parameters, i.e. modulus m, number of teeth Z and pressure angle α ， It can […]
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Research content of precision forging technology of spiral bevel gear
Taking the precision forging process of automobile driven spiral bevel gear as the research object, the metal dynamic law and […]
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Development of gear precision forging technology
Gear precision forging has developed greatly in recent decades. More and more manufacturers and users pay attention to manufacturing gears […]
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Problems in precision forging technology of spiral bevel gears
The driven spiral bevel gear mechanical transmission system plays the role of adjusting speed and transmitting power. It has the […]
Scientific
Basic principle of gear cutting method of conical end milling cutter
The proposed method uses a conical end mill as a tool, moves back and forth in the tooth width direction, […]
Scientific
Causes of forging folding defects of transmission second shaft gear
Forging process flow of two shaft gear forgings: blanking with band saw（ φ 85mm round steel) → heating in medium […]
Scientific
Comprehensively consider the influence of tooth profile and tooth direction modification parameters on the stiffness and transmission error of helical gear
The modification amount of helical gear profile CA = 30 μ m. The helical gear profile modification length La = […]
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Nonlinear excitation and dynamic characteristics of helical gear system considering modification
Because the load of gear transmission system fluctuates greatly in the alternating area of tooth number, it will cause vibration […]
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Problems in precision forging technology of spiral bevel gears
Generally speaking, the precision forging technology of spiral bevel gear has been greatly developed in theoretical research, process test, engineering […]
Scientific
Isothermal normalizing process test of carburized gear blank forging waste heat
1.Microstructure and performance requirements of forged gear blank 20CrMnTi is selected as the material of automobile gearbox gear. The technical […]
Scientific
Forging folding defect of transmission second shaft gear
Folding is a common defect in gear forging production, which is formed by the local convergence of oxidized metal surfaces […]
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Quality and precision control of precision forging technology for spiral bevel gears
As a transmission part, gear has very strict requirements for dimensional accuracy. However, under the forming condition, the die will […]
Scientific
Mathematical model for optimization of forging process parameters of gear blank
The optimization problem in forging process includes two aspects: first, analyze the optimization design problem and establish the corresponding mathematical […]
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Precision forging technology and die design of spiral bevel gear
In precision forging process, die technology is closely related to the performance, accuracy and processing mode of parts. The development […]
Scientific
Key manufacturing technology of large gear blank
The large gear of converter secondary reducer is the tilting of converter and the main bearing component in the process […]
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Analysis on forming process of gear precision forging technology
The forming and filling of spiral bevel gear is complex. The process analysis of forging should focus on the plastic […]
Scientific
Improvement of heat treatment process for forged gear blank
In the original process, the forged gear blank is directly air cooled to room temperature after forging, and then rough […]
Scientific
Numerical results of differential eccentric gear based on unequal division model
Programmed and calculated under Matlab, when the number of coordinate points of involute working tooth profile of reference tooth is […]
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Research status of gear precision forging technology
The level of gear precision forging technology represents the development of a country’s manufacturing industry to a certain extent. The […]
Scientific
Structural characteristics and working mechanism of eccentric gear noncircular gear planetary system transplanting mechanism
The schematic diagram of the eccentric gear non-circular gear planetary system transplanting mechanism is shown in Figure 1. The relative […]
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Motion mechanism of eccentric gear noncircular gear planetary transplanting mechanism
The transplanting mechanism is the core working part of the rice transplanter, which realizes the action of transplanting and transplanting. […]
Scientific
Asymmetric design process of upper and lower dies for gear blank forging
In the process of gear blank forging, due to the cylindrical upsetting effect of the blank, the contact area between […]
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Continuous indexing cutting face gear with straight edge cutter
In order to further improve the machining efficiency of rough cutting soft tooth face gears with straight edge tools, Dr. […]
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Development of gear precision forging technology
Precision forging technology has obvious advantages: low cost, high efficiency, energy and material saving, high precision and so on. There […]
Scientific
Improvement of forging process of gear blank
Taking the forging of a large gear blank as an example, the forging drawing is shown in Figure 1, with […]
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Driving axle hypoid gear based on meshing misalignment
Hypoid gear is a key part in the transmission system of automobile drive axle. Its tooth surface meshing quality directly […]
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Overview of face gear manufacturing technology
Face gear drive is a transmission mechanism in which involute cylindrical gear (small wheel) meshes with bevel gear, as shown […]
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Present situation and development trend of ball gear manufacturing technology
Involute ring gear ball gear is a new type of gear mechanism, which plays a key role in realizing multi […]
Scientific
Optimization analysis of forging parameters of gear blank
According to the comparative analysis of the four schemes in Figure 1, Φ 100mm bar has the best forming effect […]
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Precision forming technology of spiral bevel gear
The workpiece processed by precision forming technology can meet the requirements of parts with little or no processing, so precision […]
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Overview of ball gear research
Ball gear is a new type of gear transmission mechanism. The flexible wrist mechanism of painting robot developed by trallfa […]
Scientific
Reference standard for forging forming of gear blanks
The main reference standards for evaluating the final forming quality of gear blanks are as follows: (1) The hub part […]
Scientific
Finite element analysis of spiral bevel gear
The setting of finite element preprocessing is very important, which not only determines whether the spiral bevel gear can converge […]
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Machining technology of spiral bevel gear
With the continuous development of the world automobile industry, the machining technology of spiral bevel gear is also changing, and […]
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Development status of NC machining technology for spiral bevel gears
Spiral bevel gear transmission mainly transmits the motion and power between vertical shafts, which requires the existence of bevel gear […]
Scientific
Finite element analysis scheme of forging gear blank
A gear blank requiring precision forging is studied. The number of teeth of the gear is 29 and the diameter […]
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Introduction to spiral bevel gear
Spiral bevel gear is mainly used in high-speed and heavy-duty staggered shaft transmission. The gear pair has compact structure and […]
Scientific
Step beam automatic feeding system for forged gear blank production
In the traditional forging production, the material is fed manually and positioned by relying on the positioning block with simple […]
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Resonance demodulation method of tractor gear vibration
At present, this spectrum analysis method based on the envelope of the signal generated by high-frequency impact excitation has been […]
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Mechanism of grinding cracks on automobile steering shaft teeth
The steering system is an important part of the vehicle safety system. The steering shaft tooth is a core part […]
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Failure analysis of grinding crack of shearer gear
The shearer needs to work in the underground roadway of the coal mine, and its working environment is poor. An […]
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Research significance of precision forming process of bevel gear by cold rotary forging
Firstly, the cold rotary forging precision forming process of bevel gear is systematically studied. This paper makes a systematic theoretical […]
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Preventive measures for grinding cracks of automobile steering shaft teeth
The stress released in the grinding process of gears generally comes from two aspects: one is the residual stress formed […]
Scientific
Control of uniform cooling of gear blank by isothermal normalizing
In order to improve the machinability of gears for transmission and stabilize the final heat treatment deformation, a company purchased […]
Scientific
Analysis of surface crack of s40c steel gear
According to the above inspection results, the cracking of steel gear tooth surface is caused by contact fatigue caused by […]
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Application status of CAD / CAPP Technology in precision forming process of bevel gear cold rotary forging
In recent years, the research and application of CAD / CAPP Technology in gear mostly focus on the design of […]
Scientific
How to prevent gear grinding cracks caused by carburizing and quenching of rolling mill
The gear material of the failed rolling mill is 17CrNiMo6 steel, the modulus Mn is 9mm, the carburizing and quenching […]
Scientific
Fracture failure analysis of ZG35CrMo large forged gear blank
Produced by a company φ 2100mm large forged gear blank with a weight of 6000kg was found to be cracked […]
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Characteristics of precision forming process of bevel gear by cold rotary forging
Bevel gear is widely used in mechanical transmission, especially in automobile transmission mechanism. The traditional bevel gear processing adopts the […]
Scientific
Analysis of velocity field distribution and evolution law of spiral bevel gear
Velocity field is a vector to measure the flow of material in the process of plastic deformation. Through the observation […]
Scientific
Case of gear grinding crack caused by carburizing and quenching of rolling mill
The rolling mill gear shaft with grinding cracks is made of 17CrNiMo6 steel, the modulus Mn is 18mm, the carburizing […]