Theoretical research and solution method of knock model of automobile transmission gear
The phenomenon of gear knocking in automobile transmission belongs to the NVH dynamics problem of transmission system. The research idea […]
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Research on the knock model of automobile transmission gears based on multi pair gears
Automobile transmission includes many pairs of helical gear pairs, multiple bearings and synchronizer assemblies, etc. when considering the spatial meshing
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Research on the knock model of automobile transmission gears based on single pair of gears
With the rapid development of the automobile industry, automobile users have higher and higher requirements for the comfort of automobile
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Effect of Variation Coefficient of Gear Center Distance on Gear Sliding Rate
The figure shows the gear drive with the number of teeth (Z1=31, Z2=32), modulus (m=6), pressure angle (a=20 degrees), crest
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Influence of Coefficient of Tooth Top Height on Sliding Rate of Gear
The diagram shows the variation trend of gear crest height coefficient when the number of teeth (Z1=31, Z2=32), modulus (m=6),
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The influence of gear number (transmission ratio) on gear sliding rate
Figure 1 shows the change trend of the sliding rate with the number of teeth (transmission ratio) of the gear
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Analysis of the slip rate curve of gear teeth
Theoretically, when k is engaged at N2, η 2 = ∞, η 1 = – 1; when k is engaged
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Calculation of relative sliding rate of involute spur gear teeth
The ratio of the relative tangential speed of the gear pair between the tooth surfaces at the meshing point and
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Carburizing and quenching process of gear surface
Gear, as a widely used mechanical component in mechanical transmission, has the characteristics of accurate transmission ratio, high bearing capacity
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Research on Design and Manufacture of Laser Cutting Chuck Drive Gear Pair
Laser cutting equipment mainly uses heat energy generated by laser beam emitted by laser to cut pipes with motion mechanical
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Additive manufacturing and secondary machined 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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The influence of Involute Harmonic Gear Tooth on bending stiffness and stress concentration
In order to reflect the influence rule of parameters on the maximum circumferential stress, dimensionless radius of chamfered root of
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Single tooth dividing cutting and gear grinding with straight edge cutter
Because the former three machining methods are based on the simulation of meshing between the small wheel (or the profile
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Maximum circumferential stress of ring gear considering the influence of gear teeth
1. Maximum circumferential stress of ring gear in design specification Considering the influence of tooth parameters, load distortion of flexible
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Cutting and grinding gear with disc cutter
Dr. Stadtfeld of Greenson first outlined the idea of using disc wheel to machine face gear. It has the advantages
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Distortion control of heating process in gear manufacturing
In view of the distortion caused by various factors, such as the release of processing stress, the different time and
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Gear Flexible Gear Profile Parameters
1. Basic profile parameters and definitions Taking the involute profile as an example, Figure shows an illustration of the involute
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Test results and discussion of ferrous powder metallurgical gears
1. Gear Fracture and Analysis According to user feedback, the gear breaks under heavy load and the fracture occurs in
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Sample preparation and test method for ferrous powder metallurgical gears
A gear tooth with fracture failure was randomly selected for fracture analysis. The fracture was cut off by wire cutting
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The stress and distortion of gear manufacturing in heating
Generally, the heat treatment distortion of the controlled workpiece is focused on “quenching distortion”. The reason is that the quenching
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The conversion of cutting movement of spiral bevel gear
According to the analysis of the cutting process of spiral bevel gear tooth surface, based on the generation principle of
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Meshing force of planetary gear drive system under continuous operation with large load
The meshing frequency and its double frequency of each pair of wheels constitute the main vibration excitation components of the
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Design and motion analysis of cutter for three-axis milling of spiral bevel gear
Based on the analysis of the cutting principle of the tooth surface of the spherical involute involute involute spiral bevel
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Meshing force of planetary gear system under large load
The dynamic load of the system is calculated when the speed is 500r / min and the load is 500N
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The cutting principle of concave tooth surface of spiral bevel gear based on the generation line of tooth surface
This paper takes the concave tooth surface of right-hand spiral bevel gear as an example to analyze and study the
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Impact vibration characteristics of planetary gear train
Planetary gear drive is widely used in various industrial fields due to its large power weight ratio, high load-carrying capacity
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Generating principle of convex tooth surface of spiral bevel gear
In order to intuitively analyze the generation principle of right spiral bevel gear convex tooth surface, the method of establishing
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Machining method of spiral bevel gear
There are two main machining methods of spiral bevel gears, forming method and generating method. Forming method The profile of
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Definition and source of backlash in precision gear drive
The total empty return of the gear transmission chain caused by the factors such as the increase of the gear
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Brief introduction to the cutting principle of Gleason spiral bevel gear
Traditional spiral bevel gear machining is based on the principle of “imaginary flat top gear”. At present, the basic idea
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Transmission error of circular arc tooth line cylindrical gear
Gear is the core and basic component of mechanical transmission equipment. Under the dynamic excitation, it will produce dynamic response
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Spiral bevel gear is one of the most widely used gears
Spiral bevel gear is widely used in various mechanical products such as aircraft, ship and national defense equipment, machine tools,
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Discussion on failure mode of gear strength
Gear transmission is one of the most important mechanical transmission. More than 300 BC, Aristotle, the ancient Greek philosopher, expounded
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Effect of oil on fatigue strength life and wear of gears
In addition to the lubrication of gears and bearings, ATF is also used for the lubrication and cooling of hydraulic
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Noncircular gear drive mechanism
An important research direction of gear geometry is noncircular gear transmission. Its complex tooth surface geometry and special transmission performance
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Research status of temperature field in gear system
The thermal behavior of the high-speed and heavy-duty gear system has a great influence on its bearing capacity. In the
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Surface strengthening technology of anti high strength automobile gear surface contact fatigue
1. Spraying technology of superfine composite materials In recent years, Chinese and Japanese companies have studied and applied the spraying
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Design of eccentric displacement gear
The machining method of the eccentric modification gear generated by the modification method is the same as that of the
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Thermal behavior analysis of high speed and heavy load gear system
Gear transmission system is the core mechanism of mechanical equipment, which determines the performance of the whole machine. But for
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Surface strengthening of high strength automobile gear surface against contact fatigue by molybdenum disulfide coating
Molybdenum disulfide (MoS2), as a high quality solid lubricating material, has good antifriction, antiwear and bearing capacity. Molybdenum disulfide (MoS2)
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Transmission principle of eccentric gear and eccentric displacement gear
The transmission between the eccentric gears will produce the change of backlash. Therefore, when calculating the coefficient of deflection of
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Surface strengthening of high strength automobile gear surface against contact fatigue with manganese phosphate conversion coating
The application of manganese phosphate conversion coating technology in improving the surface strength of transmission parts first appeared in improving
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Measures to improve the structural performance of rocker gear shaft
According to the statistical analysis of the faults, it is found that the gears and bearings on the second shaft
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Structure of gear box of shearer rocker
As one of the main equipment of the coal mining face, the shearer is required to have high reliability in
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Heat treatment of high strength automobile gear
The strengthening technology of gear heat treatment should pay attention to the control of surface integrity, that is, to control
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Failure mode and mechanism of high strength automobile gear
The automobile gear is in the state of continuous load operation. There are rolling and sliding between the meshing surfaces
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Research on surface strengthening technology of high strength automobile gear
Gear is an important part to transmit power in mechanical devices. The Japanese mechanical society has carried out systematic investigation
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Optimization and improvement of thin-walled gear for mechanical transmission mechanism of airlock in nuclear power plant
According to the above analysis, in order to thoroughly solve the undercut fracture accident of thin-walled gear and ensure the
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Failure analysis of thin-walled gear used for mechanical transmission mechanism of airlock in nuclear power plant
According to the failure mechanism analysis of thin-walled gear, the gear material is 40Mn2. In the process of gear meshing,
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Research on rack and pinion of automobile steering gear
As the key part to change the driving direction and keep the vehicle running in a stable straight line, the
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Failure mechanism analysis of broken teeth of thin-walled gear used in mechanical transmission mechanism of airlock in nuclear power plant
It is found that the broken tooth thin-walled gear is a 2 ″ straight cylindrical gear with 12 teeth, which
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Gear machining and surface integrity control
In order to improve the production efficiency of gear machining and ensure the surface integrity of the gear, the gear
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Failure analysis of thin-walled gear for mechanical transmission mechanism of airlock in nuclear power plant
The gas gate of nuclear power plant runs through the inner and outer containment of reactor. Because of its complex
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Influence of four factors on fretting friction instability of gear shaft shoulder
The numerical calculation of the fretting friction instability state of the gear shoulder during the operation of the gear shaft
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Gear in place measurement
Gear in place measurement refers to the measurement when the instrument is installed on the gear or on the machine
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Big gear out of position measurement
In the field of gear measurement, the measurement of large and small gears has always been a technical problem, among
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Study on surface oxidation of Cr Mo Si steel used in automobile gearbox during gas carburizing
With the increasingly strict global regulations on carbon dioxide emissions and fuel consumption efficiency, automobile powertrain systems become more compact
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Analysis of micro torsional vibration mechanism of gear shoulder under complex working condition
In the gear transmission mechanism of complex power equipment, the gear shaft and the bearing are assembled by interference, so
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Heat treatment of motorcycle gear
Normalizing treatment Normalizing is a heat treatment process in which the steel is heated to 30 ~ 50 ℃ or
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Research on the way to solve the knock of automobile transmission gear
At present, the transmission knocking noise is mainly solved in the following ways (see Table 2): from the aspect of