Multi-body dynamics simulation is carried out for all the modification schemes of helical gear pair of an electric vehicle reduction […]
(1) The influence of complex optimization modification scheme of large gear with long tooth profile and tooth crest involute+tooth direction
To analyze and optimize the performance of a double arc helical gear pump, it is crucial to develop a flow
The Double Arc Helical Gear Pump is a positive displacement pump that uses helical gears to transfer fluid. The fluid
There are three kinds of optimal modification schemes for tooth profile drum shape, which are the modification amount of driving
The optimized profile modification scheme of the broken line arc on the tooth top of the long tooth profile is
3D modeling of the helical gear pair corresponding to the optimal solution B before and after optimization using MASTA software.
The optimal modification scheme of the involute of the long tooth profile is the modification amount of the driving wheel
1. Finite Element Mesh Generation of Rotors Utilize the Mesh function in Workbench for finite element mesh generation of structures,
The optimized modification scheme of the long tooth profile addendum arc is the modification amount of the driving wheel 5
Conduct a running in experiment on a helical gear pair with/without coating at 2500 r/min and 230 N · m,
The linear optimization modification scheme of long tooth profile addendum is the modification amount of driving gear 3 μ m.
Through multi-objective optimization design and simulation analysis of a single stage helical gear reducer, the following conclusions can be drawn.
Compared with straight cylindrical gears, helical gears have the advantages of good meshing performance, large overlap, and compact structure, and
In order to explore the strengthening mechanism of coatings, the tooth shape and orientation parameters of helical gears with/without coatings
Use Solidworks software to conduct 3D solid modeling for the rotating pair of double circular arc helical gear pump. The
1. Fluid Control Equation The numerical calculation of the double arc helical gear pump in Fluent needs to follow the
Figure 1 shows the influence curve of the pinion tooth width on the time-varying meshing force of the helical gear
To investigate the influence of support stiffness on the meshing characteristics of helical gear pairs, two rigid flexible coupling models
Helical gears can be further classified into two types: single helical gears and double helical (or herringbone) gears. When choosing
The selection of pressure angle is directly related to the transmission quality of helical gear pair. The greater the pressure
1. Accuracy Testing Results of Helical Gears The detection results of the tooth alignment accuracy of the helical gear after
The physical model of a double arc helical gear pump can be described in terms of its key components and
The rotor of the double arc helical gear pump adopts a double arc gear with a sine transition curve as
The first gear helical gear pair determines the maximum torque that an automotive automatic transmission can withstand, and it has
In addition to helical gears and spur gears, there are several other types of gears that can be used in
Ideally, the smaller the backlash, the smaller the meshing impact of the helical gear pair. However, too small backlash will
The helical gear is a type of cylindrical gear with teeth that are cut at an angle to the gear
The first gear helical gear pair system of an automatic transmission has the characteristics of high load and high fatigue
The rotation direction of helical gears is classified using SVM support vector machine, which is a commonly used classification algorithm
External gear pumps are widely used in fields such as aerospace, agricultural machinery, and hydropower due to their advantages of
The misalignment of helical gear meshing is a key factor affecting the stability and lifespan of the helical gear pair
Figure 1 shows the influence curve of the helix angle on the time-varying meshing force of the helical gear pair
Misalignment of meshing can lead to eccentric loading of helical gears, worsen the contact state of the tooth surface, and
Transmission error refers to the deviation between the actual output angle and the ideal angle of a helical gear along
Gears are the core components of automotive transmission systems. The transmission performance and meshing characteristics of helical gear systems are
Transmission error belongs to error excitation and is an important factor affecting the vibration and noise of meshing gear pair,
The sliding coefficient is an important parameter to measure the relative sliding degree between the tooth surfaces of the meshing
The measurement of the modulus of helical gears requires first locating the center of the gear, commonly used methods include
As shown in the figure, the three-dimensional nephogram of contact stress of the 0 # unmodified, 1 # optimized plan
The edge of an image is generally the transition area between the target and the environment, which is an area
As shown in the figure, the tooth surface load distribution of No. 0 unmodified, No. 1 optimized and No. 9
The edge of an image is generally the transition area between the target and the environment, which is an area
Due to the unique tooth shape of helical gears, background noise is inevitably generated during the image scanning process, which
Under ideal oil-lubricated meshing conditions, the big and small gear teeth will be completely separated by the oil film. At
The helical gear pair in the reduction box of electric vehicle is in oil lubrication state. The thicker the oil
As shown in the figure, the transmission error curve of helical gear with no modification, no 1 optimization and no
During the process of collecting and processing helical gear images, external interference may cause a decrease in image quality. To
(1) Optimized profile modification of large and small gears+drum profile modification of tooth direction Figures 1, 2, 3, 4 and
The overall hardware of the helical gear detection system mainly consists of an industrial camera, a telecentric lens, a light
To evaluate the accuracy and reliability of the helical gear parameter detection method, five sets of standard helical cylindrical gears
Figures 1, 2 and 3 show the drum shape modification of the big and small gears at the same time,
Gears, as an important component, have always played a huge role in human production and life. Effective detection of various
The figure shows the maximum value Max (u) of dimensionless vibration displacement u and the minimum value Min (v) of
(1) Linear addendum optimization of long tooth profile Figures 1, 2 and 3 show the linear tooth top modification of
Figure 1 shows the dimensionless vibration displacement u and v of p, g tooth pairs, and q, g tooth pairs
(1) Selection of long and short shaping methods Long modification refers to the repair and removal of the part from
Generally speaking, the coincidence degree of a helical gear system is greater than 2, and the continuous gradual involution of
Due to the existence of helical angles, the meshing stiffness of helical gears not only varies with the variation of
(1) Influence of pinion tooth width on transmission error of helical gear Figure 1 shows the relation curve between the
