Drop hammer impact testing machine

Abstract

The invention discloses a drop hammer impact testing machine, which comprises an iron block, a drop hanger, a wire cable, a grapnel device and a rail holding device. The invention is characterized in that a beam, an upright post, a cross arm and a support are fixed to form a frame of the impact testing machine via screw bolts; a pulley is mounted on the beam and below the upright post; one end of the wire cable is arranged on the beam, and the other end thereof is connected with a power unit through the drop hanger and the pulley; the drop hanger is provided with a drop hanger device for catching and releasing an impact hammer; the rail holding device is fixed in the middle position below the upright post. By using the invention, automatically catching the hammer and automatically decoupling can be realized while the rail cannot change position to finish repeated impact tests, thus saving testing times, reducing labor strength and improving work efficiency greatly.

Description

Technical field [0001] The invention relates to a test equipment, and more specifically to a drop hammer impact tester. It is mainly used to detect the drop hammer impact test of rail welds. Background technique [0002] The existing drop hammer impact testing machine is fully manually operated. Each time the hammer is manually hung on the hook, the hook is pulled up to a specified height, and then the hammer is released, and the sample is impacted by the weight of the hammer. , After finishing once, the rail rolls over or slips off the support. Then lift the rail to support, repeatedly install the hammer head on the hook, pull it up, and then release the hammer head to impact the sample. Each impact requires manual operation, so the operation is complicated and time-consuming, the rail is heavy, and the operating site It is small, very inconvenient, and labor-intensive. It usually takes 10-15 minutes for each impact to operate. The drop weight test of each sample usually require...

AI Technical Summary

Problems solved by technology

[0002] The existing drop hammer impact testing machine is fully manual operation. After each time the hammer head is manually hung on the hook, the hook is pulled up to the specified height, and then the hammer head is released to impact the sample through the weight of the hammer head. , after completing one pass, the rail rolls over or slips off the support

Then lift the rail to the support, repeatedly install the hammer on the hook, pull it up again, and then release the hammer to impact the sample. Each impact requires manual operation, so the operation is complicated and time-consuming. The rail is heavy and the operating site is limited. Small, very inconvenient, labor-intensive, usually requires 10-15 minutes for each impact, and each sample drop weight test usually needs to complete two impacts, for samples such as rails, each time The type test requires continuous testing of 25 samples, and the weld drop hammer impact test requires at least 25 consecutive completions, that is, 50 impacts. If the traditional testing machine is used, it will take a lot of time, the efficiency is very low, and the labor intensity of the workers is high.

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