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Rolling stone impact force testing device

A testing device and impact force technology, applied in measuring devices, force/torque/power measuring instruments, instruments, etc., can solve the problems of lack of systematic research on impact force changes, insufficient research on impact resistance of cushioning materials, and large errors

Inactive Publication Date: 2012-05-02
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above impact force methods have their own advantages and disadvantages, and have their own applicable conditions and scope, but they all have certain limitations, and the obtained formula values ​​are all approximate values
However, the prominent problems in the current research are: (1) Many theoretical calculation formulas lack systematic research on the change of impact force
This was demonstrated from some simulations, with some limitations
(2) Insufficient research on impact resistance of cushioning materials
Many formulas obtained through experiments generally consider the situation of free fall, which is obviously different from the different angle changes in the collision process, and the obtained results have a large error with the actual situation

Method used

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Embodiment Construction

[0017] figure 1 It is a working principle diagram of a specific embodiment of the impact force testing device of the present invention. In the figure, the impact testing device includes an impact blocking device 1, a force sensing testing device 2 and a data acquisition and analysis device. The impact blocking device 1 includes an object moving track 11 , a baffle plate 12 and a buffer layer 13 . The object moves downward from the moving track according to the designed height and size, and hits the baffle plate 12 carrying the cushioning material 13 to generate an impact effect. This impact force provides an impact signal to the force-sensing testing device 2 through the baffle plate 12 . Wherein the inclination angle of the baffle can be adjusted by the device 2.

[0018] The impact action forms an induced force 22 through the force sensor device 21 in the force sensor test device 2 . In order to maintain the balance of the test device during operation and reduce test err...

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Abstract

The invention relates to a rolling stone impact force testing device, and relates to the measurement technology of geological engineering. The rolling stone impact force testing device comprises a bottom support, an upper baffle and a lower baffle, wherein the upper baffle and the lower baffle are overlappedly arranged and are connected by a connecting part, and a force sensor is arranged at the connecting part; and a buffer layer made of an elastic material is arranged on the upper surface of the upper baffle, and the bottom support comprises an angle adjustment device and is connected with the lower baffle. The rolling stone impact force testing device has the beneficial effects that: different impact angles and different impact speeds of impact objects can be simulated, different buffer materials are selected, different buffer thicknesses are set, and thereby the magnitude of the impact force of the impact objects can be tested.

Description

technical field [0001] The invention relates to geological engineering survey technology. Background technique [0002] For the existing collapse prevention measures, it is divided into two aspects: active protection and passive protection. As for the passive protection system, they are all designed to avoid the structural form directly bearing the impact force of rolling stones. The protection index is measured by the impact of rolling stones, and the protective measures are based on energy. However, there is no quantitative calculation formula for the calculation of the impact force of rolling stones. Therefore, it is also very important to test and study the impact force of rolling stones. measures are very important. However, it is difficult to establish a theoretical formula that meets any conditions and can accurately represent the magnitude of the impact force. The impact process of the impact force is actually a dynamic collision process, in which there are many f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
Inventor 裴向军黄润秋袁进科裴钻
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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