Characteristics of cylindrical gears
In the meshing transmission of cylindrical gear mechanism, there is a large tangential relative sliding speed along the tooth length […]
In the meshing transmission of cylindrical gear mechanism, there is a large tangential relative sliding speed along the tooth length […]
Name of each part of cylindrical gear (take spur gear as an example): l) Pitch circle diameter d ‘, graduation
Cylindrical gear is an important type of mechanical gear, and it is the most common gear style. When the gear
Helical cylindrical gear is a kind of helical gear. It is called helical cylindrical gear only when the two shafts
Hypoid gear is also called “elevation gear”. The conical surface is used as the indexing surface to approximately replace the
Helical gears is the abbreviation of “helical cylindrical gear”, that is, the cylindrical gear whose tooth line is cylindrical helix,
At present, the effective method to produce the driven spiral bevel gear blank of automobile rear axle at home and
Taking the automobile rear axle driven spiral bevel gear blank processed by ZHY gear as the research object, its original
At present, foreign automobile manufacturers generally adopt isothermal annealing treatment for truck gear forging blank, and specify different isothermal annealing
Automobile rear axle is also called drive axle. It not only bears the load, but also acts as differential and
With the enhancement of China’s national strength, China’s scientific level has been greatly improved. At the same time, it has
After the precise gear change model of spur gear is established in the software of SolidWorks. Through the comparison and
By comparing the advantages and disadvantages of various forming processes and combining the process methods of producing spiral bevel gear
Ring rolling, in fact, can be regarded as a rolling process, which mainly carries out continuous local compression deformation on
Planetary gear train is an important gear transmission mechanism, which has the advantages of compact structure, small volume, light weight,
Through the research on the relationship between helical gear modification and friction excitation, the coupling dynamic model of helical gear
As we all know, the quality of gears is influenced not only by the steel itself, but also by the
As a transmission part, spiral bevel gear is widely used in automobile, machine tool, ship, aircraft and other related fields.
Among the steering gears used by Chinese cars, in the last century, Jiefang automobile and Dongfeng Automobile used worm crank
During gear heat treatment, carburizing and quenching, a reasonable furnace charging method shall be adopted according to the specific conditions
On the basis of studying a large number of relevant data at home and abroad, this paper makes an in-depth
The interface design of automobile rack and pinion steering gear model base the man-machine interface and man-machine interaction ability of
The dynamic response characteristics of gear system refer to the dynamic behavior of gear system in the working process, mainly
General products are composed of one or many parts. In order to realize the parametric design of products, we must
1. Microstructure analysis of pre heat treatment After ordinary normalizing, the metallographic structure of the first speed gear blank is
China’s truck gear steel basically follows the brand of the former Soviet Union. For a long time in the past,
This paper introduces automobile steering system and automobile rack and pinion steering gear, then introduces the current situation of automobile
The steering gears commonly used in modern cars include recirculating ball steering gear, worm crank finger pin steering gear, rack
The metallurgical quality of steel for truck gear has the following requirements: 1.End hardenability At present, the bandwidth control of
After the above experimental analysis and referring to the metallographic inspection of Automobile Carburized Gears, it can be observed that
The purpose of pre heat treatment is to obtain uniform and fine structure and completely eliminate stress. The pre heat
Taking 9t one speed gear parts as an example, the effects of different pre heat treatment methods on the deformation
Gear is an important part of automobile transmission device, which has the functions of changing movement direction, changing speed and
For the research of tooth surface friction, more attention is paid to the heating and energy consumption caused by friction,
Three typical parts of heavy truck gearbox hc7s-120: first and second speed gear sleeve (representative of thin-walled castings), fourth speed
Material quality is affected by multiple factors. Different origin, smelting methods, quality categories and supply forms of truck bevel gear
The process tests of 9T 34556 speed gear sleeve with different heat treatment methods, different heat treatment process parameters and
In 1674, Danish astronomer Romer used the enveloping cycloid as the gear tooth profile to obtain the gear with conjugate
Through the process test of two different pre heat treatments on the deformation law of the parts after final carburizing
From the above analysis of the service conditions and failure forms of gears, it is proposed that the performance requirements
1. Test purpose Verifying the rationality of bevel gear process is an effective guarantee to reduce the heat treatment deformation
1. Effect of pre heat treatment on cylindrical gear deformation Before 2010, our company adopted the ordinary normalizing method for
Among the main factors affecting the gear heat treatment deformation, the only thing that can be improved by the heat
The automotive helical gear transmission system under various complex working conditions makes the surface strengthening technology of automotive helical gear
The gearbox gear of heavy truck is one of the three major products of ZHY Gear. It has been supporting
The influence of material quality on the quality of truck helical gear has attracted more and more attention. The unstable
The machining method and residual stress of spiral gear will have a certain influence on the deformation of carburized spiral
Forging can make the forging billet segregation, uniform structure and reduce the banded structure, which is conducive to reducing the
The deformation of heavy truck gearbox gear after carburizing and quenching is caused by the gear in the process of
The purpose of gear modification is to make the pressure distribution on the tooth surface as uniform as possible after
With the continuous development of China’s automobile industry and national economy year-on-year, the heavy vehicle industry has also entered a
Due to these irreplaceable advantages, spiral bevel gear has been widely used as an important part in the transmission system
At the beginning of this century, the German automobile industry used high Ni alloy steel to produce high load truck
Heavy truck gear refers to all kinds of gears in the gearbox of heavy truck. The automobile gearbox is located
① Aiming at the problems of serious tooth tip collapse, low material utilization, low forming accuracy and low die service
In the field of scientific research and engineering technology, numerical simulation is a basic research method that pays equal attention
Shot peening is a widely used method to improve the fatigue strength of automobile gears by mechanical means to produce
With the continuous improvement of automotive gear requirements and the continuous development of automotive gear surface processing engineering technology, the
Gear is an important part for transmitting power in mechanical devices. The Japanese mechanical society has conducted systematic investigation and
Spiral bevel gear is the general name of bevel gear whose tooth surface pitch line (the intersection line of tooth