![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)
Depending on the road, the vehicle and the driver, the individual gears will be subjected to different loads. In order to expand the range of use, the gearbox must have sufficient life for all gears, regardless of road. This means that the gearbox must allow the most unsuitable load at all speeds.
The test cycle delivers such a load, typically a single-stage cycle test time for pitting corrosion of the carburized hardened gear is determined by the Woβhler curve. Indicates a special design strategy: If the damage S is calculated for a certain gearbox, its allowable ultimate load or pressure can be calculated according to the Woβhler curve, which is suitable for gear design. Therefore, an optimal weight gear unit precisely adjusts the gear set and can be designed and developed in a short period of time without having to repeat it.
The Woβhler curve strength values ​​required for life calculations are suitable for testing the gearbox and are continually corrected with new tests. Special life characteristics take into account different materials, qualities, processes, lubricants (additives, viscosity) and various characteristics of the gearbox design as well as the requirements for use (safety).
Modern programs for gear design and recalculation are still an important rule in gear design and recalculation. However, as the requirements have increased, the finite element method has been adopted. Traditional and finite element calculation programs have been combined to form the FE spur gear program series. The finite element (FE) spur calculation program uses the Stiaus program to determine the number of teeth required for the test bench based cycle, allowable load, and individual speed ratios. It helps designers to adopt a comprehensive optimization algorithm and the minimum number of rough requirements for gear parameters. The Stitea program was used for the final design of each gear set and planetary gear train (ie Ravigneaux).
Stifer program and hob, cutting shaft frame steel device seat layer cutting assembly machine tool, grinding wheel is used to determine the semi-finishing and finishing gear cross-section geometry. The Stifa method is used to calculate the tooth shape correction and the space drum tooth geometry. The Stigen program using varying CAD and FE programs implements automatic FE unit generation including boundary conditions and loads. The actual load distribution is achieved using the modulus of elasticity using the Stilas or Stilar program. In such a case, the influence parameter method is no longer applied, and a nonlinear FE program is employed. The calculation results include Fourier analysis of load and deformation distribution and torque error.
Stitea design program with automatic drawing surface map Figure 6 shows that the Stitea design program automatically draws the surface map for easy operation. The program structure is the same as the original version and extended for regular use. In addition to a unit and symbol display, a search card method is employed for input, geometry, tools, etc. of the basic data of each gear set and planetary gear train. The input character set is a chart support. To fully guarantee the user, the additional program is related to selecting each input character set with a footnote. Similar inputs are implemented in a series of possible tests to prevent possible program failures. A number of boundary conditions have to be studied in gear design, which supplements common optimization algorithms with additional support required by Stiaus. Figure 7 shows a basic pre-design to examine the effects of different gear parameters in tabular form.
Gear parameter changes (selected via the pull2down menu) are calculated directly from the addendum correction factor and all new gear parameters are represented in the table in a dialog. This approach has clear operational advantages over processing data batch form programs. Nonlinear Finite Element Program Calculation Figure 15 shows the internal gear and large deflection ring gears and produces a simulation of the contact map offset. A nonlinear finite element program is used for this type of problem. The refinement of the grid is limited due to the extended calculation time.
Therefore, determining contact conditions by polynomial functions (faux functions) and surface bonding is particularly important for such programs. The finite element deviation is due to the large deformation between the precision tooth surface contacts. At the same time, it is necessary to study the characteristics of nonlinear materials related to high load in carburizing and hardening and material tempering.
Calculation of the tilt of the idler in the transmission gear In the example of the "spur gear of the car transmission" described above, the gear is fixed to the shaft. In the case of the idler, the deformation of the housing, the bearing clearance, the shaft have been described. The effect of bending, etc. A slight complicated force flow is applied to the shaft by the idler through the clutch body, the sliding sleeve and the synchronizer body. This system can also be analyzed using the appropriate three-dimensional FE method. All the parts involved, including the contact areas associated with them, are drawn as line drawings, since only durability, stability and friction calculations can be recommended if all parts include contact areas. The results of the detailed geometric line diagrams in the FE model have been accurately and discussed in detail, and are not sufficient for friction without friction.
Grinder , Sander or Polisher at some point they are synonym. They are widely used in industrial grinding sanding polishing processes. They are passive to carry out the force imposing by our Force Control System, active contact flange, or Constant Force Actuator. So our force control system is an integral part for the whole grinding sanding polishing system.
Cheap grinding grinder, cheap sanding sander, cheap polishing polisher
DARU Technology (Suzhou) Co., Ltd. , https://www.darudfc.com