Analysis of forging speed field of helical gear
Fig. 1 shows the blank flow velocity field under different pressing amounts. The velocity field of helical gear die forging […]
News
News
News
Establishment of finite element model of helical gear
The die forging process of helical gear studied adopts closed die forging process, which is divided into two processes: blanking
News
Gear precision forging technology – die manufacturing and gear measurement
The precision of cold forming die is the key of gear precision forging technology. At present, the analysis method has
News
Research trend of root crack of spur gear
The research of fatigue crack is a part of reliability research. In engineering application, it is mainly to predict the
News
Experimental design of dynamic characteristics of helical gear transmission system
According to the operating conditions of high-speed railway traction gear transmission system, different experimental conditions are designed and steady-state experiments
News
Study on continuous cold extrusion process of spur gear (sun gear)
Based on the numerical simulation, the cold extrusion process and die design of spur cylindrical gear (sun gear) are partially
News
Continuous extrusion forming of external teeth of spur gear
Stack two spur gear ring blanks into the outer tooth female die sleeve, and insert the spur gear ring blank
News
Gear precision forging technology – cold treatment process
As the first stage of gear precision forging, hot and warm forging process is relatively easy to control, because the
News
Differential eccentric gear train transplanting mechanism
As the core component of the high-speed transplanter, the rotary transplanting mechanism first used the eccentric gear to drive the
News
Rolling forming technology of spur gear
With the rapid development of China’s aerospace, engineering machinery and truck industries, spur gear is an indispensable part of heavy-duty
News
Design of eccentric modified gear
Due to its simple design and convenient processing, eccentric circular gear is widely used in the transmission system of non-uniform
News
Analysis of rice transplanting mechanism with eccentric gear planetary system
At present, rice transplanters used in China, such as 2zt-935 rice transplanter produced by Yanji rice transplanter factory in Jilin
News
Future development of face gear manufacturing technology
Based on their manufacturing principles, the manufacturing technology of face gear can be generally divided into three categories: Based on
News
Honing, milling and planing of face gear
In order to reduce the surface roughness of hard gear and trim the tooth surface texture after grinding, Wang Yanzhong
News
Technical requirements and process analysis of aviation fuel pump gear
1. Casting technical requirements The structure of gear parts of an oil pump is shown in Fig. 1 and Fig.
News
Additive manufacturing and secondary machining face gear
As an additive manufacturing technology, 3D printing is a new technology that subverts the traditional manufacturing and has become the
News
Delayed crack of aviation fuel pump gear
The design accuracy of gear pair of fuel oil gear pump is high, and the gear accuracy generally reaches level
News
Single tooth indexing grinding gear with straight edge cutter
Because the first three machining methods are based on the simulation of the meshing between the small wheel (or production
News
Disc cutter grinding face gear
Dr. Stadtfeld of Greenson first outlined the idea of machining face gear with dished grinding wheel. The use of dished
News
Worm cutter grinding face gear
Due to the low efficiency and accuracy of gear shaping and can only cut soft tooth surface gears, which is
News
Gear shaping machining of face gear
Fellows company has invented the gear shaping processing of face gear as early as 1945. The parameters of the gear
News
NC machining technology of spiral bevel gear
The processing technology of spiral bevel gear is to first cut the gear surface, then select some reference points on
News
Cause analysis of grinding crack of shearer gear
The material composition of the shearer gear meets the technical requirements, the hardness of the oxidation zone at the tooth
News
Mechanism analysis of grinding cracks on automobile steering shaft teeth
The microstructure before carburizing and quenching is ferrite + pearlite. Pearlite is distributed on the ferrite matrix in lamellar form.
News
Surface crack of s40c steel gear
With the advent of China’s high-speed, heavy load, alpine and other models, especially the successful launch of China’s standard EMU,
News
Technological process of grinding burns and cracks on hard tooth surface of cylindrical gear
There is a heat treatment tooth surface hardening process before grinding the hardened cylindrical gear, which will inevitably lead to
News
Improvement of machining technology of large size and high precision spiral bevel gear
The design of side gear and quasi double-sided curved surface gear is the same as that of arc gear and
News
Machining technology of large size and high precision spiral bevel gear
Processing principle of spiral bevel gear: the Simulation wheel is a processed spiral bevel gear, and the unified chuck is
News
Machining of large size and high precision spiral bevel gear
Spiral bevel gear is a key part in the field of mechanical transmission, which transmits motion or power between intersecting
News
Cutting simulation of equal height spiral bevel gear
Equal height spiral bevel gear is widely used in automobile, aviation, aerospace and other fields because of its high transmission
News
Composition of gear cutting system
1.Hardware structure of gear cutting system Hardware structure of gear cutting system: main control computer and main control system are
News
CNC system for gear cutting
NC machining of gears is an effective way to improve gear accuracy and machining efficiency. It is one of the
News
Melting and heat treatment of cast steel large gear of mining mill
The method of electric arc furnace primary smelting + LF refining is adopted for liquid steel smelting. In order to
News
Research status of helical gear vibration and noise in China and abroad
The noise generated by structural vibration is an important noise source in helical gear system. In the design stage of
News
Manufacturing technology of cast steel large gear for mining mill
Large gear is the core transmission part of mining mill, and its reliability is related to the safety and stability
News
Coupling dynamics of helical gear modification and friction excitation
Gear transmission is the most important and widely used mechanical transmission device, which is widely used in machinery, transportation, chemical
News
Establishment of induction heating finite element model of large spur gear
The module of large spur gear is 40, the number of teeth is 35, the tooth width is 80mm, and
News
Local induction heating process of large spur gear
Gear is one of the most widely used parts in mechanical transmission. Its quality and service life directly affect the
News
Prospect of compound forming technology of continuous cold extrusion and cold shaping of spur cylindrical gears for trucks
The compound forming process of continuous “cold extrusion + cold shaping” of spur gear is studied, mainly for the purpose
News
Formation principle of cycloid of hypoid gear
The tooth milling of cycloid hypoid gear is designed according to the principle of “imaginary plane gear” (crown wheel, also
News
Tooth contact of cycloid Hypoid Gear Considering installation error
Hypoid gear is more and more used in the rear axle of automobile because of its high bearing capacity, stable
News
Establishment of three-dimensional geometric model of hypoid gear
In the current automotive hypoid gear processing methods, generally, when the large wheel cone angle is large, the forming method
News
Compound forming technology of continuous cold extrusion and cold shaping of spur gear for truck
From the multi-objective optimization of cold extrusion process parameters of spur gear, the influence of shaping quantity on the accuracy
News
Time varying meshing stiffness of hypoid gear of automobile drive axle
The motion transmission error of hypoid gear is the main excitation of gear vibration energy. In most hypoid gear equipment,
News
Quality control of the contact area of hypoid gear after heating
In recent years, China’s automobile industry has developed rapidly. NVH (vibration and noise) performance has attracted extensive attention of automobile
News
Pretreatment of LTCA finite element analysis model of spiral bevel gear
The pre-processing of spiral bevel gear finite element analysis includes the selection of elements, the setting of analysis types, the
News
Hot precision forging of spur gear and its compound forming process
Hot precision forging of spur gear is a precision forming method developed from hot die forging technology. It is mainly
News
Machining error analysis of driving gear in shearer cutting section
Because MATLAB software adopts a unified data type without specifying variables, and has good scalability and high programming efficiency, it
News
Meshing stiffness of spiral bevel gear based on finite element method
Stiffness excitation is one of the main excitation of gear meshing vibration. Determining the elastic deformation and meshing stiffness of
News
Development of automobile gear manufacturing industry in China
Automobile gear manufacturing industry is the industry with the largest annual output, the highest output value and the largest number
News
Composition of gear products in China
According to the statistics of China gear professional association, in 2014, the product composition of China’s gear industry was 60%
News
Manufacturing technology of curved bevel gear for automobile drive axle
At present, there are two kinds of gear systems in China, Gleason system and Oricon system. The tooth line made
News
Key process equipment technology of gear in China
Gear is an important basic part of electromechanical products. Gear transmission is a main form of transmitting machine power and
News
Research on hobbing of helical gear
In the parametric design of involute helical cylindrical gear, the meshing motion simulation of helical cylindrical gear and helical surface
News
Key process equipment technology of gear in China
(1) Present situation ① Gear cutting machine tools: cylindrical gear making machine tools such as gear hobbing machine, gear shaper
News
Gear lubrication, cooling and sealing technology in China
(1) Present situation The friction design of gear transmission, the development of high-quality lubricating medium and the research of efficient
News
Gear materials and heat treatment technology in China
(1) Present situation ① The quality of gear materials is low, there are many defects in castings and forgings, and
News
Determination of hobbing scheme for helical gear
Main motion transmission chain: the main motion chain to realize the rotation of gear hobbing hob: motor-1-2-uv-3-4-hob. Among them, UV
News
Introduction to Y3150E gear hobbing machine
Because gears are widely used and used, gear processing machine tools are key equipment in engineering machinery, automobile industry and
News
Key gear processing technology in China
The machining here mainly refers to the machining of gear, shaft and other parts. Improving the level of processing technology