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Usually the three tolerance groups of the gears can be selected for the same level of accuracy. Load part click gear design option load, input load raw data in the dialog box, input power of drive wheel gear GNPH5 and speed and transmission efficiency NRO, get the power of gear B after carriage return GBN]O]^ and speed-BNTXXOT And the torque FH that each of the two gears is subjected to. Click the calculation button to get the various loads on the gear, radial force V1, circumferential force V0, axial force V7 and resultant force V-, circumferential speed Y. These data are used for gear strength design and calibration, of course. It can also be used as the original parameter for the corresponding shaft and bearing design.
Strength design of involute cylindrical gears The gear strength is designed by two strength theories: root bending fatigue strength and tooth surface contact fatigue strength. Under normal circumstances, the hardness of the SL"TXR hard toothed gear is designed according to the root bending strength; The soft toothed gear of the hardness SLTXR adopts the tooth surface contact fatigue strength, and the data of the strength calculation is more. Most of them need to look up the table or the curve, which is prone to artificial error and low efficiency. It is very convenient and simple to use the engineering manual for strength check. The front has been selected in the Gear Module Design Wizard. Now you can click on the button to display the dialog box for calculating the gear strength. Under this dialog, there are three ways to meet the gear strength: the engineering manual is in the design of the involute cylindrical gear. application.
By selecting the material and the heat treatment method, we can add carbon and steel with the button. If the safety factors of both gears are satisfied, the strength check result is correct: if there is one gear, then a higher strength material should be selected to continue. Check until the safety factor. After entering the required design life, the system directly gives the minimum requirement for the safety factor, and the two are the minimum requirements for the material. As long as the minimum requirements are available, the user can select the material and the thermal repair method according to the actual situation. Enter the required design life, material selection and heat treatment method, and then click the geometric parameter 9@7AB75-C> option, the system calculates the minimum modulus B and center distance according to the life and materials; and other tooth shapes. parameter.
After the gear parameter design and strength check is completed, pay attention to save as DE; data file for future call. The shape of the involute gear body is based on the geometric parameters, life, material and heat treatment method determined above. The three-dimensional entity of the gear is generated by the engineering manual. The steps are as follows: click on the database, enter the gear database, select the gear or gear according to the above Standard involute cylindrical gears for parameter design, if you need to modify the parameters of the gear; make the corresponding modifications. This question is a big gear.
After the data is finalized, click the Generate button, the system returns to the assembly environment, save the file name as prompted, and the system automatically generates the 3D shape of the gear. The gears generated above only have the tooth profile. Double-click the gear to enter the part environment, modify the spokes and hub parts of the gears, and pull out the material to open the keyway and the symmetrical belly hole. For smaller gears, The shaft is composited and made into a gear shaft to complete the final structural shape of the gear.
The engineering manual is used to design the gear of the reducer, which is accurate and fast, avoiding calculation errors. The engineering manual can also be used to design the belt drive, chain drive, worm drive, etc., and design the shaft and bearing according to the data obtained during the design of the transmission parts. . In the process of designing the shaft, the engineering manual can automatically generate the moment diagram, the torque map, and the stress concentration factor, the surface quality coefficient and the fatigue limit of the material from the database, and check the safety factor of each dangerous section according to the fatigue strength. The efficiency of mechanical part design is greatly improved.