This paper analyzes the tooth surface equation, conjugate tooth surface equation and tooth surface contact line equation of involute arc […]
The tooth profile of the helical gear is involute on the end face, and in the tooth length direction, it
In the meshing transmission, the rotation angles of the cylindrical gear and the face gear are 1 and
From the point of view of meshing mechanism and gear characteristics, due to the change of pressure angle of gear
Cylindrical gear transmission is one of the most widely used transmission methods in gear mechanism. At present, it has three
The helical gear is used to transmit the rotary motion between the parallel axis and the staggered axis, and the
The welding repair process is suitable for repairing casting defects such as pores, sand holes, slag inclusions, cracks (cold and
Face gear transmission is a kind of gear transmission in which the cylindrical gear and the bevel gear are meshed.
At present, the focus of mining equipment is to lightweight, and the structure of mining mechanical reducer has a significant
Tooth profile modification is usually the shape of the drawing, that is, “drum tooth”. Tooth profile modification can be divided
It can be seen from the analysis that the material of gear is the most fundamental cause of gear failure,
The production of spiral bevel gears plays an important role in the modern machinery manufacturing industry. Because of its large
In the shift process of the manual transmission, the performance required by the shift gears of different gears is not
1. Shaving before heat Practice shows that concave phenomenon often occurs in the direction of tooth height during shaving. There
The phenomenon that a part loses its specified function is called failure. The main forms of parts failure can be
The low life of the bevel gear of automobile rear axle in China is always a big problem. There are
With the development of automobile towards high performance, gear system should meet the requirements of high efficiency, high reliability, high
There are many methods of gear profile modification. According to the accuracy requirements of gear and gear batch, choosing the
1. Test to limit the effect of steel hardenability on distortion 1) Sample The test adopts two sizes of disk-shaped
In general, mechanical system is composed of power system, transmission system and executive system, in which the power system provides
Due to the influence of manufacturing and installation errors, gear elastic deformation and thermal deformation, gear transmission will produce impact,
The metallurgical factors of steel, such as grain size, non-metallic inclusions, banded structure, hardenability, etc., have an impact on the
In the shift process of the manual transmission, the performance required by the shift gears of different gears is not
In order to ensure the stable and safe operation of coal mining machinery, the qualitative indexes in the life evaluation
It is the basic principle and method to reduce the distortion of workpiece to make the structure and quality of
Through the study of the forming process of involute spiral tooth surface, and the application of ANSYS parametric language to
In the gear transmission system which is the most prone to failure in coal mining machinery, the failure ratio of
During quenching and cooling, the workpiece will generate volume expansion and large thermal stress and structural stress. If the volume
The distortion of gear heat treatment, especially the distortion of carburizing and quenching, makes the gear accuracy greatly reduced. In
In view of the main causes of the above cracks, we have taken corresponding measures. 1 Strengthen the strict inspection
As the starting point of the casting forging compound forming process, whether the casting process design and the casting defect
High quality low alloy steel s17Cr2Ni2Mo is the first choice steel for hard tooth surface gear and gear shaft. In
Shu Qifu once put forward the concept of “equivalent blank” to study the influence of taper on the forming process
Based on the design of the process flow, the main purpose of the closed hot die forging step is to
The forming quality of forgings directly determines the product quality and service life. After hot die forging, the surface finish
Since the end of 1990s, the multi-functional rack and pinion drilling rig has played an important role in the effective
1. Part drawing analysis The figure is the part drawing of the rear axle driven spiral bevel gear of a
Using traditional manufacturing technology to produce high-performance and complex parts has become a bottleneck restricting the improvement of product quality
The advantage of casting process is that it can produce castings of any size and shape at low cost, but
The two-stage transmission mechanism combined with worm and gear is widely used because of its advantages of high transmission power,
Based on the generating principle of spherical involute tooth surface, a new method of cutting tooth surface of spherical involute
According to the method of generating tooth profile, the software of calculating the tooth profile of eccentric displacement gear is
Automobile rear axle (also known as drive axle) refers to the rear drive shaft and related components used to transfer
Spiral gear transmission and worm gear transmission are two basic mechanical transmission modes. Spiral gear transmission is mainly the fit
During the 12th Five Year Plan period, China’s automobile industry has made great progress, and the automobile production and sales
1.The judgment method of rotation direction is the same The spiral gear drive and the worm drive have the same
In the production practice, it is an important link to detect the machining error of spiral bevel gear quickly and
The processing principle of spiral bevel gear is shown in the figure. Its profile wheel is an imaginary flat top
The use of steel is very extensive, and its role in the national economic system is crucial. With the rapid
The pre forging die and final forging die need to be designed for the precision forging of the half shaft
The pre forging die and final forging die need to be designed for forming planetary gear by “one heat two
As the main power transmission mechanism, the gear shaft in the gear transmission mechanism mainly supports the rotating parts and
Compared with cutting gear, precision forging gear has many advantages. Therefore, using precision forging technology to produce gear is the
In modern engineering production, many kinds of heavy machinery, such as high-speed rolling mill, heavy-duty operation equipment, special vehicles, large
At present, the forging process of straight bevel gear mainly includes the following “two fire two forging” and “one fire
At present, the additional rotation in the slotting process of spiral gear is widely realized by the spiral guide rail.
Metal bulk forming is a complex process of large plastic deformation, that is, there is a nonlinear relationship between the
According to the analysis, in order to cut a complete spiral gear, the gear shaping and workpiece blank must have
Principle of slotting When the gear shaper is used to cut helical gears, it is equivalent to the meshing of
The tooth profile accuracy of grinding wheel is relatively high, such as grinding high-precision gear, screw, worm, spline and so
