CN214952575U - A rigid-flexible rock pressure testing machine device for teaching demonstration - Google Patents
A rigid-flexible rock pressure testing machine device for teaching demonstration Download PDFInfo
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- CN214952575U CN214952575U CN202120686870.4U CN202120686870U CN214952575U CN 214952575 U CN214952575 U CN 214952575U CN 202120686870 U CN202120686870 U CN 202120686870U CN 214952575 U CN214952575 U CN 214952575U
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- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 230000000694 effects Effects 0.000 claims abstract description 9
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Abstract
The utility model provides a rigidity-flexible rock pressure test machine device that teaching demonstration was used belongs to geotechnical engineering test technical field. The device comprises a rotary handle, a threaded rod, a bolt, a loading counter-force frame, a loading pressure head, a high-stiffness spring, a loading base plate with preset holes, a loading base plate without preset holes, a loading rigid pressure head and a device base, the threaded rod is connected below the rotary handle, the loading pressure head is connected below the threaded rod, the loading base plate with preset holes is arranged below the pressure head, the loading counter-force frame with preset holes is arranged at two ends of the loading base plate with preset holes, the loading counter-force frame with preset holes below the loading base plate is provided with the loading base plate without preset holes, the loading rigid pressure head is arranged below the center of the loading base plate without preset holes, and the device base is arranged at the bottom. The utility model discloses can carry out rigidity press pressure test demonstration and flexible press pressure test demonstration, carry out destruction mode indoor test demonstration under the rock load effect for the relevant course of rock mechanics and provide a demonstration method.
Description
Technical Field
The utility model relates to a geotechnical engineering test technical field especially indicates a rigidity-flexible rock pressure test machine device of teaching demonstration usefulness.
Background
Rock material press content is all related to in the geotechnical engineering course teaching, and wherein, rigid press and flexible press are when carrying out the rock sample loading, and the destruction phenomenon of performance is different completely: (1) the flexible press machine is also called as a common press machine, the rigidity of the whole structure is small, when a rock compression test is carried out, after the load reaches the strength limit of a rock, because the anti-deformation capability of a rock test piece is reduced, the elastic deformation energy accumulated by the pressure test machine due to small rigidity is large, the elastic deformation energy can be instantaneously released, so that the rock test piece is subjected to explosive disintegration and damage in a very short time; (2) when the rigidity of the whole structure of the rigid press is large, after the strength limit of the rock is reached in the test process, the elastic deformation performance released by the press is small, the rock test piece cannot be instantaneously damaged, and the test can be continuously and stably carried out, so that the stress-strain relation of the rock after the strength limit is reached is tested through the test, and the full stress-strain curve of the rock is obtained.
When teaching the difference of the rigid-flexible press, the traditional geotechnical engineering course teaching is difficult to vividly show the relevant principle, particularly the phenomenon of severe rock destruction under the loading condition of the flexible press, and is not beneficial to students to understand relevant knowledge points. Therefore, the rock test press demonstration device suitable for geotechnical engineering teaching needs to be invented urgently.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a rigidity-flexible rock pressure test machine device that teaching demonstration was used.
The device comprises a rotary handle, a threaded rod, a bolt, a loading counter-force frame, a loading pressure head, a high-stiffness spring, a loading base plate with a preset hole, a loading base plate without a preset hole, a loading rigid pressure head and a device base, wherein the threaded rod is connected below the rotary handle, the loading pressure head is connected below the threaded rod, the loading base plate with the preset hole is arranged below the pressure head, the loading counter-force frame is arranged at two ends of the loading base plate with the preset hole, the vertical frame of the loading counter-force frame is connected with the top frame through the bolt, the loading counter-force frame below the loading base plate with the preset hole is provided with the loading base plate without the preset hole, the loading counter-force frame between the loading base plate with the preset hole and the loading base plate without the preset hole is provided with the high-stiffness spring, the loading base plate is arranged below the center of the loading base plate without the preset hole, and the rigid pressure head is arranged below the device base, the loading counter-force frame and the loading rigid pressure head are connected with the base of the device.
The number of bolts is 6, and the number of high-stiffness springs is 2.
The hole containing the preset hole loading base plate is not threaded.
The high-stiffness spring enables the loading of the loading base plate without the preset hole to realize a flexible loading demonstration effect, and at the moment, the sample is placed on the loading rigid pressure head.
The device passes through a loading base plate with a preset hole through a threaded rod, a loading pressure head is used for loading to realize a rigid loading demonstration effect, and at the moment, a sample is placed on the loading base plate without the preset hole.
The device has a height of 18-22cm and a width of 8-12 cm.
The utility model discloses an above-mentioned technical scheme's beneficial effect as follows:
among the above-mentioned scheme, device overall structure rigidity is big, and the rock test piece can not destroy in the twinkling of an eye, and the experiment can steadily go on, and the device size is suitable in addition, portable.
Drawings
FIG. 1 is a schematic structural diagram of the device of the present invention;
FIG. 2 is a finished view of the device of the present invention;
fig. 3 is a functional explanatory diagram of the device of the present invention.
Wherein: 1-rotating handle, 2-threaded rod, 3-bolt, 4-loading counterforce frame, 5-loading pressure head, 6-high stiffness spring, 7-loading backing plate with preset hole, 8-loading backing plate without preset hole, 9-loading rigid pressure head, and 10-device base.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
The utility model provides a rigidity-flexible rock pressure test machine device that teaching demonstration was used.
As shown in figure 1, the device comprises a rotary handle 1, a threaded rod 2, a bolt 3, a loading counter force frame 4, a loading pressure head 5, a high-rigidity spring 6, a loading base plate 7 with preset holes, a loading base plate 8 without preset holes, a loading rigid pressure head 9 and a device base 10, wherein the threaded rod 2 is connected below the rotary handle 1, the loading pressure head 5 is connected below the threaded rod 2, the loading base plate 7 with preset holes is arranged below the pressure head 5, the loading counter force frame 4 is arranged at two ends of the loading base plate 7 with preset holes, a vertical frame and a top frame of the loading counter force frame 4 are connected through the bolt (3), the loading counter force frame 4 below the loading base plate 7 with preset holes is provided with the loading base plate 8 without preset holes, the loading base plate 8 without preset holes is parallel to the loading base plate 7 with preset holes is provided with the high-rigidity spring 6, a loading rigid pressure head 9 is arranged below the center of the loading base plate 8 without the preset hole, a device base 10 is arranged at the lowest part of the device, and the loading counter-force frame 4 and the loading rigid pressure head 9 are connected with the device base 10.
The number of the bolts 3 is 6, 2 bolts are respectively arranged at the two sides of the frame at the top of the loading counterforce frame 4 and the joint of the vertical frame, and 2 bolts are arranged at the joint of the bottom of the vertical frame of the loading counterforce frame 4 and the device base 10; the number of high rate springs 6 is 2.
The hole containing the pre-hole loading shim plate 7 is unthreaded.
The high-rigidity spring 6 enables the loading of the loading base plate 8 without the preset hole to realize the flexible loading demonstration effect.
The device passes through a loading base plate 7 with a preset hole through a threaded rod 2, and a loading pressure head 5 is used for loading to realize a rigid loading demonstration effect.
The device has a height range of 18-22cm and a width range of 8-12 cm.
As shown in fig. 3, is a functional description of the device of the present invention. The specific steps of the flexible loading demonstration effect are as follows: the high-rigidity spring 6 is arranged between a loading base plate 7 with a preset hole and a loading base plate 8 without the preset hole, and the threaded rod 2 and the loading pressure head 5 are screwed on the loading base plate 7 with the preset hole; when test demonstration is carried out, a demonstration sample such as chalk is placed on the loading rigid pressure head 9, and then the rotary handle 1 is screwed to realize a flexible loading process.
The concrete steps of the rigid loading demonstration effect are as follows: the threaded rod 2 is opened to be in bolted connection with the loading pressure head 5, and the threaded rod 2 is screwed with the loading pressure head 5 after penetrating through a round hole of a loading base plate 7 with a preset hole; when test demonstration is carried out, a demonstration sample such as chalk is placed on the loading base plate 8 without the preset hole, and then the rotary handle 1 is screwed to realize a rigid loading process.
Fig. 2 is a diagram of a finished rigid-flexible rock pressure tester device for teaching demonstration.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a rigidity-flexible rock pressure test machine device of teaching demonstration usefulness which characterized in that: comprises a rotary handle (1), a threaded rod (2), a bolt (3), a loading counter-force frame (4), a loading pressure head (5), a high-stiffness spring (6), a loading base plate (7) with a preset hole, a loading base plate (8) without the preset hole, a loading rigid pressure head (9) and a device base (10), wherein the threaded rod (2) is connected below the rotary handle (1), the loading pressure head (5) is connected below the threaded rod (2), the loading base plate (7) with the preset hole is arranged below the pressure head (5), the loading counter-force frame (4) is arranged at two ends of the loading base plate (7) with the preset hole, a vertical frame of the loading counter-force frame (4) is connected with a top frame through the bolt (3), the loading counter-force frame (4) below the loading base plate (7) with the preset hole is provided with the loading base plate (8) without the preset hole which is parallel to the loading base plate (7) with the preset hole, a high-rigidity spring (6) is arranged on a loading counter-force frame (4) between a loading base plate (7) with a preset hole and a loading base plate (8) without the preset hole, a loading rigid pressure head (9) is arranged below the center of the loading base plate (8) without the preset hole, a device base (10) is arranged at the bottommost part of the device, and the loading counter-force frame (4) and the loading rigid pressure head (9) are connected with the device base (10).
2. The rigid-flexible rock pressure tester apparatus for teaching demonstration according to claim 1, wherein: the number of the bolts (3) is 6, and the number of the high-rigidity springs (6) is 2.
3. The rigid-flexible rock pressure tester apparatus for teaching demonstration according to claim 1, wherein: the hole containing the preset hole loading base plate (7) is internally provided with no thread.
4. The rigid-flexible rock pressure tester apparatus for teaching demonstration according to claim 1, wherein: the high-stiffness spring (6) enables the loading of the loading base plate (8) without the preset hole to realize a flexible loading demonstration effect, and at the moment, the sample is placed on the loading rigid pressure head (9).
5. The rigid-flexible rock pressure tester apparatus for teaching demonstration according to claim 1, wherein: the device passes through a loading base plate (7) with a preset hole through a threaded rod (2), and a loading pressure head (5) loads to realize a rigid loading demonstration effect, and at the moment, a sample is placed on the loading base plate (8) without the preset hole.
6. The rigid-flexible rock pressure tester apparatus for teaching demonstration according to claim 1, wherein: the device has a height of 18-22cm and a width of 8-12 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120686870.4U CN214952575U (en) | 2021-04-01 | 2021-04-01 | A rigid-flexible rock pressure testing machine device for teaching demonstration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120686870.4U CN214952575U (en) | 2021-04-01 | 2021-04-01 | A rigid-flexible rock pressure testing machine device for teaching demonstration |
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| CN214952575U true CN214952575U (en) | 2021-11-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138116A (en) * | 2021-04-01 | 2021-07-20 | 北京科技大学 | Rigid-flexible rock pressure testing machine device for teaching demonstration |
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2021
- 2021-04-01 CN CN202120686870.4U patent/CN214952575U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113138116A (en) * | 2021-04-01 | 2021-07-20 | 北京科技大学 | Rigid-flexible rock pressure testing machine device for teaching demonstration |
| CN113138116B (en) * | 2021-04-01 | 2022-04-08 | 北京科技大学 | A rigid-flexible rock pressure testing machine device for teaching demonstration |
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