Guardrail pile driver machinery is a personalized product, which must be designed according to specific applications and usage requirements. As an important component of guardrail pile driver machinery, the design strength and dynamic characteristics of the slewing support device directly affect the performance and safety of the entire machine. Statistical data show that 90% of early failures in slewing bearings are caused by broken teeth. The main reason is that the design and selection do not meet the requirements of specific working conditions. Therefore, it is particularly important to conduct related research on the design and selection of the slewing support device.

1. The guardrail pile driver uses a torsional vibration model of a gear pair to establish a dynamic model of the slewing support device and conducts dynamic simulation analysis to obtain the dynamic performance of the rotating gear. By analyzing the rotational angular velocity and the meshing force of the gear, the preliminary design of the slewing support is determined to see if it meets the design requirements.

2. Based on the virtual simulation technology of the guardrail pile driver, the impact of structural parameters such as modulus and number of teeth on the dynamic performance of the slewing support was studied, and a set of optimized design and selection methods for the slewing support bearing device was proposed. This method analyzes the shortcomings of the dynamic simulation results of the slewing gear and improves the dynamic performance of the slewing support device by changing gear structural parameters such as modulus and number of teeth.

3. The guardrail pile driver, based on the optimized model of the slewing support, uses dynamic simulation technology to study the effects of the drive speed of the slewing motor, gear clearance, and gear meshing stiffness coefficient on the dynamic performance of the slewing support. The dynamic load history under different conditions can provide guidance for the design, manufacturing, and installation of the slewing support.

4. Finally, based on finite element analysis technology, the static response of the slewing support under load was studied, and the optimized design of the slewing support was tested to see if it meets the strength requirements.