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How can the performance of edge teeth in construction machinery be improved
To enhance the performance of edge teeth in construction machinery, it is necessary to optimize from multiple dimensions such as materials, structure, process and maintenance. The specific strategies are as follows:
I. Material strengthening
Choose for high-strength alloys
Carburizing steel or high manganese steel is adopted to enhance the strength and toughness of the base material, reduce the risk of fracture, and the wear resistance of the tooth surface is improved through surface hardening treatment (such as carburizing and nitriding).
Tooth root strengthening process
Increasing the fillet radius of the tooth root reduces stress concentration. Combined with shot peening treatment, a compressive stress layer is formed on the surface to inhibit crack propagation.
Ii. Structural Optimization
Geometric parameter adjustment
Increase the module and tooth width : within the allowable space, increase the module or tooth width to distribute the load and enhance the bending strength.
Precision tooth top modification : Optimize the tooth top height coefficient and involute integrity, reduce meshing impact, and lower the risk of abnormal wear.
Contact stress control
The tooth profile design and load distribution are optimized through finite element analysis (FEA) to ensure uniform contact stress on the tooth surface and avoid local overload failure.
Iii. Upgrading of Manufacturing Processes
Precision machining and heat treatment
Milling/grinding processes improve the surface finish of the teeth, heat treatment enhances the hardness of the material, and extends the service life.
Change coefficient adjustment
By rationally selecting the displacement coefficient and optimizing the meshing state, the load-bearing capacity can be increased by 20% to 30%.
Four. Maintenance and adaptation to working conditions
Regularly grind and maintain
The base of the worn edge teeth is leveled and the tooth profile is finely refined (unifying the sawtooth Angle and height), restoring over 90% of the performance and extending the service life by 30%.
Lubrication matches working conditions
Select high-viscosity grease to reduce friction loss and optimize the modification parameters specifically based on the actual load (such as high-frequency working conditions).
V. Closed Loop of Detection and Verification
Simulation and measurement linkage
During the design stage, extreme working conditions are simulated through CAD/FEA. In the sample stage, contact spot and noise tests are tracked, and model errors are reverse-corrected.
Definition standardization
Unify software modeling, drawing annotation and parameter definitions at the manufacturing end (such as positive and negative values of pressure angles) to avoid performance deviations caused by understanding deviations.
Key point : The performance improvement of edge teeth should run through the entire life cycle - strengthen materials and geometric parameters in the design stage, control accuracy and heat treatment in the manufacturing stage, and dynamically adjust the modification strategy and lubrication plan in the operation and maintenance stage in combination with working conditions.
How can the performance of edge teeth in construction machinery be improved
To enhance the performance of edge teeth in construction machinery, it is necessary to optimize from multiple dimensions such as materials, structure, process and maintenance. The specific strategies are as follows:
I. Material strengthening
Choose for high-strength alloys
Carburizing steel or high manganese steel is adopted to enhance the strength and toughness of the base material, reduce the risk of fracture, and the wear resistance of the tooth surface is improved through surface hardening treatment (such as carburizing and nitriding).
Tooth root strengthening process
Increasing the fillet radius of the tooth root reduces stress concentration. Combined with shot peening treatment, a compressive stress layer is formed on the surface to inhibit crack propagation.
Ii. Structural Optimization
Geometric parameter adjustment
Increase the module and tooth width : within the allowable space, increase the module or tooth width to distribute the load and enhance the bending strength.
Precision tooth top modification : Optimize the tooth top height coefficient and involute integrity, reduce meshing impact, and lower the risk of abnormal wear.
Contact stress control
The tooth profile design and load distribution are optimized through finite element analysis (FEA) to ensure uniform contact stress on the tooth surface and avoid local overload failure.
Iii. Upgrading of Manufacturing Processes
Precision machining and heat treatment
Milling/grinding processes improve the surface finish of the teeth, heat treatment enhances the hardness of the material, and extends the service life.
Change coefficient adjustment
By rationally selecting the displacement coefficient and optimizing the meshing state, the load-bearing capacity can be increased by 20% to 30%.
Four. Maintenance and adaptation to working conditions
Regularly grind and maintain
The base of the worn edge teeth is leveled and the tooth profile is finely refined (unifying the sawtooth Angle and height), restoring over 90% of the performance and extending the service life by 30%.
Lubrication matches working conditions
Select high-viscosity grease to reduce friction loss and optimize the modification parameters specifically based on the actual load (such as high-frequency working conditions).
V. Closed Loop of Detection and Verification
Simulation and measurement linkage
During the design stage, extreme working conditions are simulated through CAD/FEA. In the sample stage, contact spot and noise tests are tracked, and model errors are reverse-corrected.
Definition standardization
Unify software modeling, drawing annotation and parameter definitions at the manufacturing end (such as positive and negative values of pressure angles) to avoid performance deviations caused by understanding deviations.
Key point : The performance improvement of edge teeth should run through the entire life cycle - strengthen materials and geometric parameters in the design stage, control accuracy and heat treatment in the manufacturing stage, and dynamically adjust the modification strategy and lubrication plan in the operation and maintenance stage in combination with working conditions.
