Combined drop hammer

Abstract

The invention discloses a combined drop hammer. The combined drop hammer comprises a second connecting flange (7), a pressure block tightening component (8), balancing weights (5), a bearing groove (3), a first connecting flange (2), a punch (1), a linear bearing slide block (4) connected to the side part of the bearing groove (3), and a screw (6) which are arranged from top to bottom, wherein the screw (6) is connected with the bottom of the bearing groove (3) after running through the pressure block tightening component (8) and the balancing weights (5). The combined drop hammer can achieve drop hammer combinations with different weights and different punch shapes by adjusting the number of the balancing weights and changing the model of the punch, can effectively increase the impact energy and can meet requirements of different test conditions; the combined drop hammer can also be ensured to vertically drop along a supporting guide rail in the case of a relatively small friction so as to simulate free-fall movement.

Description

technical field [0001] The invention relates to a drop hammer impact device, in particular to a combined drop hammer body for impact. Background technique [0002] Drop hammer impact testing machine is used to measure the external impact resistance of pipe fittings, plates or other forms of structures. Its working principle is to lift the drop hammer to a specified height and then release it. The drop hammer falls freely and hits the test piece. The impact energy is mainly Depends on drop weight and free fall height. However, the height of the drop hammer impact testing machine support is often limited by the space and cannot be designed too high, and the drop hammer body cannot be designed too heavy considering the installation. Therefore, the impact energy of the drop hammer impact testing machine on the market is mostly 300KJ, and the punch The form is relatively simple, and disassembly is troublesome. However, for research fields such as automobiles, ships, and bridges...

AI Technical Summary

Problems solved by technology

However, the height of the drop hammer impact testing machine support is often limited by the space and cannot be designed too high, and the drop hammer body cannot be designed too heavy considering the installation. Therefore, the impact energy of the drop hammer impact testing machine on the market is mostly 300KJ, and the punch The form is relatively simple, and it is troublesome to disassemble

However, for research fields such as automobiles, ships, and bridges, the impact energy required for impact tests is often large, and the test conditions are also relatively diverse. The requirements for the shape of the punch are inconsistent, and the existing drop hammers are often difficult to meet these requirements; at the same time , the falling hammer of the drop hammer impact testing machine on the market has too much friction during the falling process, or it cannot guarantee the vertical drop of the vertical body

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