Tooth surface equation of hypoid gear with few teeth
Using the meshing principle of hypoid gear and based on the meshing equation, the tooth surface equation is deduced. The […]
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Study on hypoid gear with small number of teeth and large reduction ratio
Focus on hypoid gears with large reduction ratio with 2-4 small teeth and transmission ratio of more than 10. Because
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Undercut inspection of hypoid gear
In general, undercutting will not occur in the large wheel of hypoid gear with small number of teeth and large
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Hobbing linkage model of high order elliptic helical gear
The feed motion of hobbing helical gear is a helix, which can be divided into the vertical motion VZ of
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New technology of gear heat treatment
ZHY gear senior engineer team proposed a new heat treatment process for obtaining Austempered bainite ductile iron, namely room temperature
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Determination of pitch cone of hypoid gear with few teeth
For the design of hypoid gear pair blank with small number of teeth and large reduction ratio, the axle intersection
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Study on hypoid gear with small number of teeth and large reduction ratio
Taking the hypoid gear with 2-4 teeth and transmission ratio of 10-30 as the research object, the main research work
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Research on hypoid gear
Hypoid gear, as the main part of mechanical transmission system, is widely used in automobile, engineering machinery, mechatronics products and
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Influence of supporting stiffness of driven gear of spiral bevel gear on dynamic load performance of spiral bevel gear transmission
Other parameters remain unchanged. Under different support stiffness of spiral bevel gear driving wheel, the variation of dynamic load coefficient
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Research on control system of NC spiral bevel gear machining machine tool
Because spiral bevel gear is widely used in all walks of life, the development of spiral bevel gear processing machine
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Gear hobbing linkage model of high order elliptic spur gear
As shown in the figure, the machine tool coordinate system s (o-xyz) is established. The X axis and Z axis
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Development of new technology for gear heat treatment
Austenite Bainite Ductile iron has good comprehensive mechanical properties of high strength, high elongation and high impact value, as well
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Calculation method of natural frequency and vibration mode of spiral bevel gear transmission
The vibration characteristics of mechanical system can usually be described by the natural frequency and vibration mode of the system.
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Research status of gear strength analysis methods
The gear strength calculation is based on the calculation formula proposed by and. Various coefficients are used to correct the
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Defects of gear heat treatment and technical improvement scheme
Gear heat treatment deformation is affected by many aspects, such as part shape, raw materials, forging and preliminary heat treatment,
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Hobbing conditions of high order elliptic gears
The gear hobbing condition of non-circular gear is that the pitch curve is not concave, that is, the radius of
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Analysis of dynamic characteristics of spiral bevel gear transmission with additional damping ring
Damping ring vibration reduction technology is an effective measure to improve the vibration characteristics of gears. By embedding damping rings
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Finite element modeling of spiral bevel gear pair
The meshing stiffness of cylindrical gear is usually calculated as a two-dimensional plane problem. The elastic deformation of single tooth
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Defects of gear heat treatment and examples of technical improvement
The problem of spline hole distortion of xf-125 primary transmission gear by China First Tractor internal combustion engine company is
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Higher order elliptic gear pitch curve equation
Based on the ellipse, keep the polar diameter unchanged, and reduce the polar angle of the ellipse by an integer
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Calculation of meshing stiffness of helical gears
The helical gear is divided into m slice helical gears along the tooth width direction AA ‘, the M slice
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Blank dimensions of spur gears
During precision forging blanking, the blank must be accurate. Due to the large hole of spur gear, there are two
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Defects and technical improvement of gear heat treatment
The deformation of gear heat treatment is very complex, which is a comprehensive reflection of the factors affecting the deformation
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Development of gear processing machine tools abroad
Since the 20th century, the demand for gears has increased rapidly, which has promoted the development and production of gear
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Angle relation between gear hob and gear
In the process of gear hobbing, according to the ideal processing conditions, that is, without considering any external error, the
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Bench loading test of drive axle hypoid gear
In order to verify the correctness of the drive axle model and LTCA simulation results, the bench loading test is
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The vibration characteristics of gear hobbing machine are analyzed
The process of vibration signal transmission caused by self-excited vibration between hob and workpiece in the machining process of machine
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Influence of tool radial circular runout error on Gear Hobbing
The tool radial runout error ∆ mainly affects the tooth profile error of the gear. The modeling is shown in
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Research progress of gear chemical heat treatment process
1. Chongqing Changjiang diesel engine factory has carried out rapid gas nitrocarburizing process test and mass production assessment on 45
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Overview of the development of China’s gear industry
As the core mechanical basic component, gear is widely used in automobile, ship, aerospace, high-speed railway, energy equipment, intelligent manufacturing
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Load bearing contact area and load transmission error of hypoid gear tooth surface of drive axle
Before LTCA analysis, firstly, the three-dimensional model of hypoid gear needs to be aligned for finite element mesh generation to
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Influence of tool rake angle error on Gear Hobbing
The schematic diagram of tool forefoot error is shown in the figure. When the cutter is grinding, there is an
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Machining error analysis of gear hobbing machine
There are 24 errors affecting the mutual position of gear hob and workpiece, including 12 motion errors and 12 installation
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Error analysis of gear hobbing machining system
In the process of gear hobbing machine machining, whether it is machine tool, fixture or meshing motion, there are errors,
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Research progress of gear annealing and quenching and tempering
For a long time, the forging blanks of car gears are mostly normalized. In recent years, with the diversification of
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Design contact area and transmission error of hypoid gear tooth surface of drive axle
Under the actual working condition, due to the meshing dislocation of the drive axle hypoid gear under the load, the
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Cold extrusion process of spur gear
The cold extrusion process of spur gear is a net forming or near net forming process. Its production efficiency and
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Gear material and heat treatment forming
1. Practice has proved that the general machine tool gears are made of medium carbon steel and treated by induction
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Compound forging process of spur gear
Spur gear is the key component of high-end equipment. The design and manufacture of high life, high performance, high efficiency
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Meshing misalignment of hypoid gear of drive axle
The installation position of hypoid gear in the drive axle transmission system is shown in Figure 1. The hypoid gear
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Analysis of selecting 6 points at different positions of spiral bevel gear
In order to analyze the material flow and stress conditions at different positions of forged spiral bevel gear, six points
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Characteristics of spur gear parts
The 18CrNiMo7-6 spur gear provided by Zhengzhou Machinery Research Institute is taken as the research object, and the product part
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Analysis of stroke load curve of cold precision forging of spiral bevel gear
During the cold precision forging of spiral bevel gear big wheel, the blank deforms under the loading force of the
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Characteristics and application of precision forging process for spur gears
Compared with ordinary die forgings, the shape of precision forgings is more complex, the machining allowance is less or even
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Analysis and preventive measures of heat treatment defects of automobile rear axle gears
Automobile rear axle gear is one of the important parts in automobile driving system. It transmits power in the process
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Six point analysis of tooth surface selection for simulated forming of spiral bevel gear
Six points are selected on the tooth surface. Points P1 ~ P3 correspond to three positions on the convex surface
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Experimental results of dynamic characteristics of helical gear transmission system
Since the theoretical model does not carry out finite element modeling on the box, and the effective value of vibration
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Development status of gear die and forging industry
Gear mold is an important basic equipment of industrial production and an integral part of high-tech industry. Gear mold technology
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Gear hobbing method of high order elliptic gear
The research on non-circular gears with typical pitch curve is a representative direction of non-circular gear design and manufacturing. The
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Edge trimming of precision forged spiral bevel gear
According to the characteristics of the forging process, the tooth profile of the spiral bevel gear is trimmed, which is
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Analysis of precision forging of spiral bevel gear
The forging of spiral bevel gear belongs to complex curved surface forging. As shown in the figure, the forging difficulty
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Influence of geometric parameters on precision forging of spiral bevel gears
There are still some difficulties in the precision forging process, so the forging of spiral bevel gear has not been
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Simulation of precision forging process of spiral bevel gear by DEFORM-3D
Import the cold precision forging die and blank model of spiral bevel gear into DEFORM-3D software. The specific steps are
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System dynamic response of synthesizing helical gear profile modification and tooth direction modification
Take the modification amount of helical gear profile CA = 30 μ m. The helical gear profile modification length La
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Application of precision forging in tractor gear
Precision forging (net forming or near net forming) refers to the forming technology that only needs a small amount of
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Improved algorithm for position and length of helical gear meshing line
Zhang Liang et al. Proposed a calculation method for the position and length of helical gear meshing line. Because this
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Analytical calculation model of meshing stiffness of helical gear pair with tooth profile modification
In helical gear transmission system, internal excitation such as stiffness excitation and error excitation of helical gear is an important
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Establishment of three-dimensional model of cold precision forging spiral bevel gear blank
In actual processing, forging blanks are mostly formed by pre forging. First, the blank is pre forged into a blank
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Analysis of die for Cold Precision Forging Spiral Bevel Gear
The precision forging adopts the closed die forging die. During the forging process, the gap between the upper die and
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Ease off surface synthesis of spiral bevel gears
Spiral bevel gear pair conjugate pinion tooth surface Σ 1 modification, in the field of calculation point m, it is