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. […]
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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
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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
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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
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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
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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
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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
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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
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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
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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.
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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,
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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,
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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
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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
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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
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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
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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
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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
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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%
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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
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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
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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
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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
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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
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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
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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
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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
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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
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The theory of tooth tip sharpening of helical gear and the formation of transition surface
The intersection of the tooth surfaces on both sides of the helical gear tooth and the thickness of the tooth
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Key design technology of gear in China
(1) Present situation Gear technology powers such as Europe, America and Japan continue to improve the design level, product power
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Seven key development areas of China gear industry
There are many types of gear products and a wide range of application fields. According to the market demand in
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Digital closed loop manufacturing technology of Aviation Spiral Bevel Gear
Because spiral bevel gear has the advantages of stable transmission, suitable for high-speed transmission, and very low noise and vibration,
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Current situation of gear industry in China
Driven by the rapid development of automobile, wind power, high-speed railway, construction machinery and other industries, China’s gear industry has
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Achievements of China gear industry
China’s specialized production and new product K development of vehicle gears, represented by automobile gears, began with introduction and digestion.
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Effect of forging blank gear on mechanical properties of gear
1) The initial forging temperature is high, the holding time is long, the gear grain is coarse and overheated; If
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Material selection and microstructure of hardened gear
Due to the differences in stress conditions and working environment, the materials and heat treatment processes of gears used in
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Stress condition and technical requirements of gear
As we all know, gear is an important part of mechanical equipment. In the process of transmitting force and changing
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Gear cutting method using conical end milling cutter
In recent years, the electric vehicle and robot market has shown a rapid development trend. Gear is an important mechanical
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Stress condition and technical requirements of gear
As we all know, gear is an important part of mechanical equipment. In the process of transmitting force and changing
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Prospect of gear technology in China
As human history enters the 21st century, it has become a consensus to build a digital earth. Manufacturing informatization has
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Progress of gear transmission technology in China
After the founding of new China, especially since the reform and opening up, gear transmission technology has developed greatly. The
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Development trend of gear heat treatment technology
1. Research and develop new steel materials for gears, such as 20CrNi2Mo steel, 17CrNiMo6 steel, etc. 2. Development of new