Electromagnetic tamper

Abstract

The invention relates to an electromagnetic tamper, which comprises a housing, a plate pressing body, an electromagnet, a travel switch and a trolley, wherein the plate pressing body consists of four pressure bars connected with a middle flat panel and a pressure head, metal guide rails are arranged on the four pressure bars and can be used as wires for supplying power for a middle electromagnet; a top electromagnet is welded below a top cover and the middle electromagnet is arranged between the middle flat panel and a pallet; a bottom electromagnet is welded at the bottom of a housing tube; the travel switch is arranged on the internal wall of the housing tube and a hole is formed in the wall of the housing tube so that wires can be led out and connected to a power supply controller; and the housing tube is fixedly connected with a trolley through a connecting flange on a metal connecting sleeve. Direct current is applied to the top electromagnet and the bottom electromagnet and alternating square wave current is applied to the middle electromagnet. According to the invention, three electromagnets combined with the travel switch are used for the downward tamping action and the upward retracting action of the tamper based on the electromagnet principle that same electric charges mutually repulse and opposite electric charges attract. The electromagnetic tamper disclosed by the invention has the characteristics of a simple structure, easy control, good expansibility and capabilities of implementing the vibration tamping and impaction tamping function and adjusting the impaction frequency and the vibration amplitude.

Description

technical field [0001] The present invention relates to an electromagnetic compacting machine, specifically a principle of using electromagnets of the same sex to repel each other and opposite sexes to attract each other. Three electromagnets are used to complete the process of punching down and going up of the compacting machine, so as to realize the effects of vibration compaction and impact compaction. electromagnetic tamping machine. Background technique [0002] In recent years, my country's infrastructure construction has developed rapidly. However, a common problem at present is that the foundation collapses due to uneven force on the ground. One of the effective ways to solve this problem is to increase the compactness and bearing strength of the ground through compaction of special mechanical equipment, and reduce the post-construction settlement of the fill. At present, there are many traditional tamping equipment, but they are basically large and heavy machinery...

AI Technical Summary

Problems solved by technology

However, a common problem at present is: the problem of foundation collapse due to uneven force on the ground

Its disadvantage is that the tamping machine adopts a spring between the electromagnet and the flat bottom plate, so when the electromagnet is energized to attract the flat bottom plate, it is subjected to the reaction force of the spring, which increases energy consumption; The force decreases as the distance increases, so the distance between it and the bottom plane bottom plate is limited. After the electromagnet is powered off, the inertia obtained by the spring tension of the plane bottom plate is also small at a small distance, so its impact effect Smaller; a spring is set between the electromagnet and the flat floor, and the tamping force of the flat floor on the soft ground is actually the elastic force of the spring, so if you want to change the maximum tamping force, you must replace the spring

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