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1193204
YASSIAN or Your's
The working process of the buffer spring
The working process of a buffer spring is essentially a cyclic conversion mechanism of kinetic energy → elastic potential energy → damping thermal energy , which is specifically divided into three core stages:
⚙️ I. Impact energy absorption stage
When external impact forces act (such as a crane colliding with the end of a track or an excavator's tracks jolting) :
Elastic energy storage : through compression/tension deformation, the spring converts the impact kinetic energy into elastic potential energy for temporary storage . At this point, microscopic lattice slip occurs in the spring material, and the metal wire undergoes torsional deformation (helical spring) or bending deformation (leaf spring) .
Peak reduction : The progressive deformation characteristic of the spring (force-displacement increasing linearly or nonlinearly) can reduce the instantaneous impact force peak by more than 70%, avoiding rigid collision damage to the equipment structure .
II. Youdaoplaceholder1 Energy conversion and dissipation stage
Springs acting alone are prone to rebound and need to be combined with a damping system to achieve smooth energy dissipation.
Potential energy release : the spring rebounds and releases the stored elastic potential energy, pushing the mechanism to return to its original position ;
Damping synergy :
Hydraulic damping : When hydraulic oil passes through the small hole of the piston valve, viscous resistance is generated, converting the remaining energy into heat energy (for example, the temperature rise of the oil in a car shock absorber can reach 60℃) ;
Frictional dissipation : polyurethane or rubber buffer pads consume high-frequency vibration energy through molecular chain friction .
III. Youdaoplaceholder1 Dynamic response regulation stage
Adaptive adjustment for different working conditions
Parameter mechanism of action typical value
The spring coefficient high k value springs (such as k₂>k₁) are compressed preferentially to achieve staged buffering the k value of the spring in mining equipment can reach 500N/mm
The preload force the precompression spring provides the initial tension to prevent vibration during idle travel the preload force for track tensioning is ≥1.5kN
The damping ratio the viscosity of the oil and the opening degree of the valve control the rebound speed there is no oscillation when the critical damping ratio ζ=0.7
⚠️ Critical failure warning (based on )
Elasticity attenuation : if the elasticity attenuation is greater than 15% after 100,000 uses, it needs to be replaced; otherwise, the contact resistance will increase by 30%.
Structural damage : if the crack depth is greater than 0.1mm or the rusted area is greater than 5%, the product should be scrapped directly .
Jamming risk : when the friction coefficient is greater than 0.3 due to insufficient lubrication, it is necessary to clean and apply molybdenum disulfide grease .
Work process diagram :
text
Copy Code
Impact kinetic energy → Spring deformation (energy storage) → damping dissipation (thermal energy) → mechanism reset
Peak force reduction by 70%↑ Vibration attenuation by 40%↑
The working process of the buffer spring
The working process of a buffer spring is essentially a cyclic conversion mechanism of kinetic energy → elastic potential energy → damping thermal energy , which is specifically divided into three core stages:
⚙️ I. Impact energy absorption stage
When external impact forces act (such as a crane colliding with the end of a track or an excavator's tracks jolting) :
Elastic energy storage : through compression/tension deformation, the spring converts the impact kinetic energy into elastic potential energy for temporary storage . At this point, microscopic lattice slip occurs in the spring material, and the metal wire undergoes torsional deformation (helical spring) or bending deformation (leaf spring) .
Peak reduction : The progressive deformation characteristic of the spring (force-displacement increasing linearly or nonlinearly) can reduce the instantaneous impact force peak by more than 70%, avoiding rigid collision damage to the equipment structure .
II. Youdaoplaceholder1 Energy conversion and dissipation stage
Springs acting alone are prone to rebound and need to be combined with a damping system to achieve smooth energy dissipation.
Potential energy release : the spring rebounds and releases the stored elastic potential energy, pushing the mechanism to return to its original position ;
Damping synergy :
Hydraulic damping : When hydraulic oil passes through the small hole of the piston valve, viscous resistance is generated, converting the remaining energy into heat energy (for example, the temperature rise of the oil in a car shock absorber can reach 60℃) ;
Frictional dissipation : polyurethane or rubber buffer pads consume high-frequency vibration energy through molecular chain friction .
III. Youdaoplaceholder1 Dynamic response regulation stage
Adaptive adjustment for different working conditions
Parameter mechanism of action typical value
The spring coefficient high k value springs (such as k₂>k₁) are compressed preferentially to achieve staged buffering the k value of the spring in mining equipment can reach 500N/mm
The preload force the precompression spring provides the initial tension to prevent vibration during idle travel the preload force for track tensioning is ≥1.5kN
The damping ratio the viscosity of the oil and the opening degree of the valve control the rebound speed there is no oscillation when the critical damping ratio ζ=0.7
⚠️ Critical failure warning (based on )
Elasticity attenuation : if the elasticity attenuation is greater than 15% after 100,000 uses, it needs to be replaced; otherwise, the contact resistance will increase by 30%.
Structural damage : if the crack depth is greater than 0.1mm or the rusted area is greater than 5%, the product should be scrapped directly .
Jamming risk : when the friction coefficient is greater than 0.3 due to insufficient lubrication, it is necessary to clean and apply molybdenum disulfide grease .
Work process diagram :
text
Copy Code
Impact kinetic energy → Spring deformation (energy storage) → damping dissipation (thermal energy) → mechanism reset
Peak force reduction by 70%↑ Vibration attenuation by 40%↑
