Electromagnetic vibration-excitation forming device for ballastless track slabs

Abstract

The invention relates to an electromagnetic vibration-excitation forming device for ballastless track slabs for a high-speed railway. According to the electromagnetic vibration-excitation forming device for the ballastless track slabs for the high-speed railway provided by the invention, multiple electromagnetic vibration exciters with good vibration acceleration amplitudes and phase control performances are arranged to replace a vibration motor used in a traditional situation, and a program control signal source, a power amplifier, an acceleration sensor, a signal collector and a control module are arranged, so that synchronous control over the ballastless track slab vibration forming acceleration amplitude and phase can be achieved. The electromagnetic vibration exciters are provided with vibration-excitation bodies and vibration-excitation ends capable of outputting electromagnetic vibration-excitation forces, the vibration-excitation ends are provided with locking pieces reliably connected with a mould, and the multiple electromagnetic vibration exciters are connected with the mould. The electromagnetic vibration-excitation forming device for the ballastless track slabs is simple in composition structure and simple and convenient in operation process, and has relatively high synchronous control precision and control efficiency for the amplitude and phase of a vibration signal output by each 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...

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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

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