Drop hammer type horizontal and vertical impact test device
A technology of impact test and drop hammer, which is applied in the direction of impact test, measuring device, machine/structural component test, etc. It can solve the problems of small speed and acceleration, and the impact force cannot meet the requirements, so as to achieve no electrical noise signal interference , cost saving, good repeatability
Inactive Publication Date: 2014-12-17
FOSHAN UNIVERSITY
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This method is similar to the chemical explosive explosion method. When the impact force of the air gun is large enough, this method has a greater potential safety hazard; but when the air gun is used within a safe range, its speed and acceleration are small, so that the impact force often cannot reach to request
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[0038] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0039] figure 1 It is a drop hammer type horizontal and vertical impact test device according to the present invention, including a vertical drop hammer device, a vertical guide rail 1 that can realize the free fall movement of the drop hammer 8, a horizontal collision car 2, and a horizontal guide rail 3 and a fixture 4 for fixing the test piece, a double-groove pulley 5 is installed on the top of the vertical drop hammer device, the double-groove pulley 5 is a double-groove fixed pulley, and the two grooves of the double-groove pulley 5 are respectively provided with lifting ropes 6 and traction The rope 7 and the hoisting rope 6 are connected to the drop hammer 8...
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The invention discloses a drop hammer type horizontal and vertical impact test device which comprises a vertical drop hammer device, a vertical guide rail, a horizontal crash vehicle, a horizontal guide rail and a clamp, wherein a drop hammer can be independently lifted to an appointed height, and then a drop hammer body is used as a crash body for realizing vertical impact test on a test sample; the drop hammer can be also connected with the horizontal crash vehicle on the horizontal guide rail through a traction rope; a lifting rope lifts the drop hammer to a certain height and then releases the drop hammer; traction acceleration of the horizontal crash vehicle is realized through the traction rope by the drop hammer; before the horizontal vehicle crashes the test sample, the traction rope is separated from the horizontal crash vehicle, and then the horizontal crash vehicle independently realizes free horizontal impact loading on the test piece. Energy for horizontal and vertical impact test is supplied by gravitational potential energy of the drop hammer. The drop hammer type horizontal and vertical impact test device has multiple advantages of high safety, reliability and controllability, high repetitiveness, simple principle and device, no electric noise signal interference, easiness in popularization and the like.
Description
technical field [0001] The invention belongs to the technical field of impact testing, and in particular relates to a drop-weight type horizontal and vertical impact testing device. Background technique [0002] In recent years, with the rapid growth of the domestic national economy, the inland shipping industry has developed rapidly, and the inland shipping traffic has become very busy, resulting in frequent collisions of bridges on the water. The most typical accident is the collision of Jiujiang Bridge in Guangdong in 2007. More than 20 million yuan was directly lost in the accident. [0003] Impact strength or impact toughness is one of the important mechanical properties of materials, which is used to measure the impact resistance and toughness of materials. [0004] In the field of civil engineering, the mechanical responses of materials and structures under impact loads are significantly different from those under static loads. In engineering and other practical prob...
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Inventor 罗旗帜陈柏生周锡武
Owner FOSHAN UNIVERSITY