CN213632981U - Spherical rock particle lateral constraint compression test device - Google Patents
Spherical rock particle lateral constraint compression test device Download PDFInfo
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- CN213632981U CN213632981U CN202022227593.9U CN202022227593U CN213632981U CN 213632981 U CN213632981 U CN 213632981U CN 202022227593 U CN202022227593 U CN 202022227593U CN 213632981 U CN213632981 U CN 213632981U
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Abstract
A lateral constraint compression test device for spherical rock particles relates to the field of mechanical test equipment. The spherical rock lateral constraint compression test device comprises a rigid frame, a rigid pressure-bearing bottom block, a rigid pressure-bearing top plate, at least one rigid pressure-bearing moving block and rigid pressure-bearing fixing blocks corresponding to the rigid pressure-bearing moving blocks, wherein the rigid pressure-bearing bottom block and the rigid pressure-bearing fixing blocks are connected to the rigid frame, each rigid pressure-bearing fixing block and the corresponding rigid pressure-bearing moving block are respectively located on two opposite sides of a spherical rock, the rigid frame is connected with a horizontal loading hydraulic jack used for driving each rigid pressure-bearing moving block to move towards the direction close to the spherical rock, and the rigid pressure-bearing bottom block is connected with an LVDT displacement sensor with the top abutting against the rigid pressure-bearing top plate through a rotatable. The application provides a spherical rock lateral restraint compression test device can be fast accurate carry out the lateral restraint compression test to the realization to the rock spheroid of equidimension not.
Description
Technical Field
The application relates to the field of mechanical testing equipment, in particular to a spherical rock particle lateral constraint compression test device.
Background
Geotechnical particle materials are widely used in geotechnical engineering construction, such as railway ballast, rock-fill dam, broken stone filler and the like, and the macroscopic mechanical characteristics of an aggregate consisting of geotechnical particles are the foundation for the engineering design and construction. The rock-soil particle compression test is a key means for revealing a microscopic mechanism of macroscopic mechanical behavior of the rock-soil particle aggregate, however, due to the limitation of the current test device, the lateral constraint effect cannot be considered in most rock-soil particle compression tests, and the difference between the lateral constraint effect and the contact state of particles in the real rock-soil particle aggregate is large.
Therefore, a rock and soil particle compression test device capable of providing lateral constraint is needed to research the contact mechanical state of the rock and soil particles under the real constraint condition.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a spherical rock granule lateral restraint compression test device, its can be fast accurate carry out comprehensive lateral restraint compression test to the rock spheroid of equidimension not.
The embodiment of the application is realized as follows:
the embodiment of the application provides a lateral constraint compression test device for spherical rock particles, which comprises a rigid frame and a rigid pressure-bearing bottom block for supporting spherical rock, the device comprises a rigid pressure-bearing top plate, at least one rigid horizontal pressure-bearing moving block and rigid horizontal pressure-bearing fixing blocks, wherein the rigid pressure-bearing top plate is positioned above a rigid pressure-bearing bottom block, the rigid horizontal pressure-bearing fixing blocks correspond to the rigid horizontal pressure-bearing moving blocks one to one, the rigid pressure-bearing bottom block and the rigid horizontal pressure-bearing fixing blocks are connected to a rigid frame, each rigid horizontal pressure-bearing fixing block and the corresponding rigid horizontal pressure-bearing moving block are respectively positioned on two opposite sides of spherical rock, the rigid frame is connected with a horizontal loading hydraulic jack which is used for driving each rigid horizontal pressure-bearing moving block to move towards the direction close to the spherical rock, the rigid pressure-bearing bottom block is connected with a rigid rotating disc which can rotate along the.
In some optional embodiments, the rigid bearing bottom block consists of a lower layer rigid bearing bottom block, a middle layer rigid bearing bottom block and an upper layer rigid bearing bottom block which are detachably connected from bottom to top in sequence, and the top of the lower layer rigid bearing bottom block is connected with the rigid rotating disk.
In some alternative embodiments, the holding bracket is liftably connected to the rigid rotatable disk.
In some alternative embodiments, the LVDT displacement sensors are elevationally coupled to the corresponding gripping brackets.
In some alternative embodiments, the horizontal loading hydraulic jack and the rigid horizontal pressure bearing fixed block are configured to be liftably connected to the rigid frame.
In some alternative embodiments, the rigid frame is further connected to a moving block support bracket for supporting each rigid horizontal bearing moving block.
In some alternative embodiments, the moving block support bracket is configured to be liftably connected to the rigid frame.
In some alternative embodiments, the top surface of the rigid bearing top plate is provided with a screw for connecting the RMT tester.
The beneficial effect of this application is: the utility model provides a spherical rock lateral restraint compression test device simple structure, it is easy and simple to handle, can carry out stable support and loading to the spherical sample of multiple size, and carry out multiple lateral restraint compression test according to horizontal loading hydraulic jack's the volume that starts, including no lateral restraint compression test, unilateral lateral restraint compression test and two lateral restraint compression test, can control hydraulic jack simultaneously and apply the horizontal pressure of equidimension not as experimental variable, thereby the influence of the size of research lateral restraint power to rock ball sample compression mechanics characteristic.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic top view structural diagram of a spherical rock lateral confinement compression test device provided in an embodiment of the present application;
FIG. 2 is an elevation cross-sectional view of a spherical rock lateral confinement compression test device provided in an embodiment of the present application;
fig. 3 is a schematic connection structure diagram of a rigid rotary disc, a clamping bracket, an LVDT displacement sensor and a rigid pressure-bearing top plate in the spherical rock lateral constraint compression test device provided by the embodiment of the application.
In the figure: 100. a rigid frame; 101. a lifting hole; 110. a rigid horizontal pressure-bearing moving block; 120. a rigid horizontal pressure-bearing fixed block; 130. a rigid pressure bearing bottom block; 131. a lower rigid bearing bottom block; 132. a middle layer rigid bearing bottom block; 133. an upper layer rigid bearing bottom block; 140. a rigid pressure-bearing top plate; 141. a screw; 150. horizontally loading a hydraulic jack; 160. a moving block support bracket; 170. clamping the bracket; 180. an LVDT displacement sensor; 190. a rigid rotating disk; 200. fixing the bolt; 210. fixing a nut; 300. spherical rock.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood as appropriate by those of ordinary skill in the art.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The characteristics and performance of the spherical rock lateral confinement compression test device of the present application are further described in detail below with reference to examples.
As shown in fig. 1, 2 and 3, an embodiment of the present application provides a lateral confinement compression test apparatus for spherical rock particles, which includes a rigid frame 100, a rigid bearing bottom block 130 for supporting spherical rocks 300, a rigid bearing top plate 140 located above the rigid bearing bottom block 130, two rigid horizontal bearing moving blocks 110, and rigid horizontal bearing fixed blocks 120 corresponding to the rigid horizontal bearing moving blocks 110 one by one, a screw 141 for connecting an RMT tester is disposed on a top surface of the rigid bearing top plate 140, the rigid bearing bottom block 130 is fixedly connected to the rigid frame 100, each rigid horizontal bearing fixed block 120 and the corresponding rigid horizontal bearing moving block 110 are respectively located at opposite sides of the spherical rocks 300, the two rigid horizontal bearing fixed blocks 120 and the two rigid horizontal bearing moving blocks 110 are located at the same horizontal plane, the two rigid horizontal bearing fixed blocks 120 are respectively connected to the rigid frame 100 in a liftable manner, the rigid frame 100 is connected with a horizontal loading hydraulic jack 150 for driving each rigid horizontal bearing moving block 110 to move along the horizontal surface in the direction close to the spherical rock 300; the rigid pressure-bearing bottom block 130 consists of a lower rigid pressure-bearing bottom block 131, a middle rigid pressure-bearing bottom block 132 and an upper rigid pressure-bearing bottom block 133 which are detachably connected from bottom to top in sequence, the top of the lower rigid pressure-bearing bottom block 131 is connected with a rigid rotating disc 190 which can rotate along a horizontal plane, the rigid rotating disc 190 is connected with two L-shaped clamping supports 170 which are oppositely arranged, each clamping support 170 is connected with an LVDT displacement sensor 180, the tops of the two LVDT displacement sensors 180 respectively press against the bottom of a rigid pressure-bearing top plate 140, the LVDT displacement sensors 180 are fixed through releasable holes formed in the clamping supports 170, the bottoms of the clamping supports 170 are connected with the rigid rotating disc 190 through threads, a rigid frame 100 is arranged between the lower rigid pressure-bearing bottom block 131, a lower rigid pressure-bearing bottom block 131 and the rigid rotating disc 190, a rigid rotating disc 190 and a middle rigid pressure-bearing bottom block 132, The middle-layer rigid pressure-bearing bottom block 132 and the upper-layer rigid pressure-bearing bottom block 133 are connected through detachable positioning pins respectively.
Four side walls of the rigid frame 100 are respectively provided with a lifting hole 101 extending in the height direction, the horizontal loading hydraulic jack 150 and the rigid horizontal pressure-bearing fixed block 120 are respectively connected with a fixed bolt 200 penetrating through the corresponding lifting hole 101 and a fixed nut 210 sleeved on the fixed bolt 200, the rigid frame 100 is further connected with two movable block supporting brackets 160 capable of lifting, the two movable block supporting brackets 160 are respectively used for supporting two rigid horizontal pressure-bearing movable blocks 110, and the movable block supporting brackets 160 are respectively connected with a fixed bolt 200 penetrating through the corresponding lifting hole 101 and a fixed nut 210 sleeved on the fixed bolt 200.
When the lateral constraint compression test device for spherical rock provided by the embodiment is used, firstly, the lateral constraint compression test device for spherical rock is transported to a working platform of an RMT tester, a sample of spherical rock 300 is placed on the top surface of an upper layer rigid bearing bottom block 133, two sides of the spherical rock are respectively attached to two rigid bearing fixed blocks 120, then, the two rigid bearing movable blocks 110 are respectively placed on two movable block supporting brackets 160, two horizontal loading hydraulic jacks 150 are controlled to extend out of hydraulic rods to push the two rigid bearing movable blocks 110 to move towards the corresponding rigid bearing fixed blocks 120 to press against the sample of spherical rock 300, so that the two pairs of rigid bearing movable blocks 110 and the rigid bearing fixed blocks 120 which are oppositely arranged are respectively pressed against the periphery of the spherical rock 300, and the upper rigid bearing bottom block 133 is used for supporting the spherical rock 300 sample, when the pressure gauges of the two horizontal loading hydraulic jacks 150 show that the horizontal direction load force applied to the spherical rock 300 sample reaches a preset value, the continuous loading of the horizontal direction load force is stopped, the horizontal direction load force applied to the spherical rock 300 sample is kept at a set value level, the rigid bearing top plate 140 is connected to a pressure sensor of an RMT testing machine by a screw rod 141 arranged on the top surface, the rigid bearing top plate 140 is positioned above the spherical rock 300 sample, the rigid rotating disc 190 is rotated to drive the two clamping brackets 170 and the LVDT displacement sensors 180 to rotate to a preset position, the tops of the two LVDT displacement sensors 180 are positioned at the bottom of the rigid bearing top plate 140, the tops of the two LVDT displacement sensors 180 are pressed against the rigid bearing top plate 140, and the LVDT displacement sensors 180 are zeroed, and starting an RMT testing machine to apply a vertical load force to the rigid pressure-bearing top plate 140, so that the spherical rock 300 sample is further compressed under the action of the vertical load force, automatically recording the magnitude of the vertical load force applied at any moment by the RMT testing machine, and simultaneously measuring the compression amount of the spherical rock 300 sample in the vertical direction by the LVDT displacement sensor 180, thereby facilitating the subsequent analysis and research of the stress and deformation conditions of the spherical rock 300 sample.
Wherein, four side surfaces of the rigid frame 100 are respectively provided with a lifting hole 101 extending along the height direction, the horizontal loading hydraulic jack 150, the moving block supporting bracket 160 and the rigid horizontal bearing fixed block 120 are respectively connected with a fixed bolt 200 penetrating through the corresponding lifting hole 101 and a fixed nut 210 sleeved on the fixed bolt 200, a user can loosen the fixed bolt 200 by rotating the corresponding fixed nut 210, and then move the fixed bolt 200 along the lifting hole 101 and the horizontally loading hydraulic jack 150, the moving block supporting bracket 160 and the rigid horizontal bearing fixed block 120 correspondingly connected to the same to a preset height, re-rotating the fixing nut 210 fixes the fixing bolt 200 to the rigid frame 100, so as to adjust the heights of the horizontal loading hydraulic jack 150, the moving block supporting bracket 160 and the rigid horizontal bearing fixed block 120 to adapt to spherical rock 300 samples of different sizes. The rigid frame 100 and the lower rigid pressure-bearing bottom block 131, the lower rigid pressure-bearing bottom block 131 and the rigid rotary disk 190, the rigid rotary disk 190 and the middle rigid pressure-bearing bottom block 132, and the middle rigid pressure-bearing bottom block 132 and the upper rigid pressure-bearing bottom block 133 are respectively connected through detachable positioning pins, a user can replace the upper rigid pressure-bearing bottom block 133 with different heights after detaching the positioning pins, and the height of the rigid pressure-bearing bottom block 130 is adjusted to adapt to spherical rock 300 samples with different sizes.
The embodiments described above are some, but not all embodiments of the present application. The detailed description of the embodiments of the present application is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Claims (8)
1. The lateral constraint compression test device for the spherical rock particles is characterized by comprising a rigid frame, a rigid pressure-bearing bottom block for supporting the spherical rock, a rigid pressure-bearing top plate positioned above the rigid pressure-bearing bottom block, at least one rigid horizontal pressure-bearing moving block and rigid horizontal pressure-bearing fixed blocks which correspond to the rigid horizontal pressure-bearing moving blocks one by one, wherein the rigid pressure-bearing bottom block and the rigid horizontal pressure-bearing fixed blocks are connected to the rigid frame, each rigid horizontal pressure-bearing fixed block and the corresponding rigid horizontal pressure-bearing moving block are respectively positioned at two opposite sides of the spherical rock, the rigid frame is connected with a horizontal loading hydraulic jack for driving each rigid horizontal pressure-bearing moving block to move towards the direction close to the spherical rock, the rigid pressure-bearing bottom block is connected with a rigid rotating disk capable of rotating along the horizontal plane, the rigid rotating disc is connected with clamping supports, and each clamping support is connected with an LVDT displacement sensor with the top abutting against the rigid pressure-bearing top plate.
2. The lateral constraint compression test device for spherical rock particles as claimed in claim 1, wherein the rigid bearing bottom block is composed of a lower layer rigid bearing bottom block, a middle layer rigid bearing bottom block and an upper layer rigid bearing bottom block which are detachably connected in sequence from bottom to top, and the top of the lower layer rigid bearing bottom block is connected with the rigid rotating disk.
3. The spherical rock particle lateral confinement compression test device of claim 1, wherein the clamping bracket is liftably connected to the rigid rotatable disk.
4. The spherical rock grain lateral confinement compression test device of claim 1, wherein the LVDT displacement sensors are liftably connected to the corresponding clamping brackets.
5. The spherical rock particle lateral confinement compression test apparatus of claim 1, wherein the horizontal loading hydraulic jack and the rigid horizontal pressure bearing fixed block are configured to be elevationally connected to the rigid frame.
6. The spherical rock particle lateral confinement compression test device of claim 1, wherein the rigid frame is further connected with a moving block support bracket for supporting each of the rigid horizontal bearing moving blocks.
7. The spherical rock particle lateral confinement compression test apparatus of claim 6, wherein the moving mass support bracket is configured to be elevationally connected to the rigid frame.
8. The spherical rock particle lateral confinement compression test device of claim 1, wherein the top surface of the rigid pressure-bearing top plate is provided with a screw for connecting an RMT tester.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022227593.9U CN213632981U (en) | 2020-10-09 | 2020-10-09 | Spherical rock particle lateral constraint compression test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022227593.9U CN213632981U (en) | 2020-10-09 | 2020-10-09 | Spherical rock particle lateral constraint compression test device |
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| CN213632981U true CN213632981U (en) | 2021-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114414375A (en) * | 2022-01-21 | 2022-04-29 | 武汉大学 | Drainage rate controllable type rockfill material lateral confinement compression test device and method |
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2020
- 2020-10-09 CN CN202022227593.9U patent/CN213632981U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114414375A (en) * | 2022-01-21 | 2022-04-29 | 武汉大学 | Drainage rate controllable type rockfill material lateral confinement compression test device and method |
| CN114414375B (en) * | 2022-01-21 | 2024-01-12 | 武汉大学 | Device and method for lateral limit compression test of rock-fill material with controllable drainage rate |
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