Hopkinson pressure rod test rock crushing collection device and using method
A technology of Hopkinson pressure rod and collecting device, which is applied in the direction of measuring device, testing material strength and instruments using one-time impact force, which can solve the problems of test error, achieve the effect of convenient use and improve test efficiency
Active Publication Date: 2020-05-05
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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However, since the bottom of the rectangular box is generally fixed on the test bench, it is necessary to manually pick it out from the box when collecting the crushed rock samples, which brings more inconvenience to the test; , so that part of the debris remains in the corners during the collection process, causing experimental errors
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[0035] The present invention will be described in further detail below in conjunction with the accompanying drawings and examples.
[0036] refer to figure 1 , figure 2 , the present embodiment is a Hopkinson pressure rod test rock crushing collection device, including a bottom box 2 ( image 3 , Figure 4 , Figure 5 As shown), the bottom box 2 is a hollow cuboid, the top of the bottom box 2 is an open structure, the bottom box 2 is 51 cm long, 30.5 cm wide, and 17.5 cm high. The center of the top of bottom box 2 both sides is provided with two semicircular lower notches 2-1, is respectively positioned at the middle part of short side, semicircle radius 3.5cm, and one end side of bottom box length direction helps to set 4.5cm below top edge. There is a rectangular opening 2-2, and the opening 2-2 communicates with the inside of the box body. The bottom box 2 is made of plexiglass plate with a thickness of 0.3 cm. Top Box 1 ( Figure 9 , Figure 10 , Figure 11 shown)...
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The invention discloses a device for collecting crushed rock in split Hopkinson pressure bar test and a using method thereof. The device comprises a bottom box and a top box, wherein the top box is covered on the bottom box; corresponding semicircular lower cutting openings and upper cutting openings are formed in the centers of two sides of each of the bottom box and the top box respectively; thebottom box and the top box are connected with each other through connection parts which are arranged on the front side and the back side in a length direction; a rectangular opening structure passingthrough the inside of a box body is formed in the lower middle part of one side of the bottom box in the length direction; a drawer passing through the opening part is arranged in the bottom box; thetop of the drawer is of a structure with a rectangular top and an arc-shaped bottom. According to the device, the drawer with the arc-shaped bottom is capable of ensuring that all the crushed piecescan be collected; the problem that part of detritus is left in corners in the collection process is avoided; the test efficiency is improved; the device is convenient to use.
Description
technical field [0001] The invention relates to a Hopkinson compression bar test device, in particular to a Hopkinson compression bar test rock collection device after crushing and a use method. Background technique [0002] The study of rock impact dynamics is often carried out using the Hopkinson pressure bar (SHPB) test equipment. During the research, it is often necessary to collect crushed rock samples after impact crushing. At present, rectangular boxes are commonly used to collect crushed rock samples. However, since the bottom of the rectangular box is generally fixed on the test bench, it is necessary to manually pick it out from the box when collecting the crushed rock samples, which brings more inconvenience to the test; , so that part of the debris remains in the corners during the collection process, causing experimental errors. Contents of the invention [0003] The technical problem that the present invention aims to solve is to provide a Hopkinson compress...
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IPC IPC(8): G01N3/02G01N3/30
Inventor 刘志义甘德清薛振林张友志韩亮李海洋张亚宾李示波李占金孙光华陈超
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY