Electromagnetic vibration forming device for ballastless track slab

Abstract

The invention relates to an electromagnetic excitation forming device for ballastless track slabs used in high-speed railways. The invention sets a plurality of electromagnetic exciters with better vibration acceleration amplitude and phase control performance to replace the vibration motor used in the traditional situation, and is equipped with a program-controlled signal source, a power amplifier, an acceleration sensor, a signal collector, and a control module. The synchronous control of acceleration amplitude and phase of ballastless track plate vibration forming is realized. The electromagnetic vibrator is provided with an exciting body and an exciting terminal capable of outputting electromagnetic exciting force, the exciting terminal is provided with a locking piece reliably connected with the mould, and multiple electromagnetic vibrators are connected to the mould. The electromagnetic excitation forming device for ballastless track slab has simple structure and simple operation process, and has high synchronous control accuracy and control efficiency for the amplitude and phase of the vibration signal output by the vibration exciter.

Description

technical field [0001] The invention relates to an electromagnetic excitation forming device for ballastless track slabs used in high-speed railways, which can realize synchronous control of acceleration amplitude and phase of vibration forming of ballastless track slabs. Background technique [0002] With the rapid development and technological progress of my country's high-speed rail, urban rail and other fields, the demand for concrete prefabricated components such as ballastless track slabs as the foundation of railway tracks is increasing, and the quality requirements are also getting higher and higher. This type of ballastless track slab needs to be subjected to vibration process during the concrete pouring forming process, so that the concrete in the forming mold can obtain a certain vibration acceleration. When the vibration acceleration makes the stress on the contact interface between concrete particles exceed the cohesive force, relative displacement will occur be...

AI Technical Summary

Problems solved by technology

[0005] In order to effectively solve the problems of low efficiency and limited molding quality in the vibration forming process of ballastless track slabs using vibrating motors in the traditional situation, the present invention proposes an electromagnetic excitation forming device for ballastless track slabs, which can correct ballastless track slabs in real time During the slab vibration forming process, multiple exciters output vibration acceleration amplitude and phase deviation to achieve equal amplitude and same phase vibration acceleration excitation for each part of the concrete, obtain a more uniform and dense ballastless track slab product, and effectively improve the vibration Molding efficiency, reduce power consumption

Images