CN211318000U - Replaceable loading head type load tester for calcareous sand - Google Patents
Replaceable loading head type load tester for calcareous sand Download PDFInfo
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- CN211318000U CN211318000U CN201921636891.4U CN201921636891U CN211318000U CN 211318000 U CN211318000 U CN 211318000U CN 201921636891 U CN201921636891 U CN 201921636891U CN 211318000 U CN211318000 U CN 211318000U
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Abstract
The utility model discloses a load tester with a replaceable loading head for calcareous sand, wherein the supporting mechanism comprises a lower platform, an upper platform, a left vertical beam, a right vertical beam and a rear vertical beam, one end of the left vertical beam, one end of the right vertical beam and one end of the rear vertical beam are respectively fixedly connected with the upper platform, and the other end of the left vertical beam, the other end of the right vertical beam and the other end of the rear vertical beam are respectively fixedly connected with the lower platform; the loading mechanism comprises a jack, a lower loading head and an upper loading head, the lower loading head is detachably and fixedly arranged on the jack disc, and the upper loading head is detachably and fixedly arranged on the upper platform; a piece to be tested is arranged between the upper loading head and the lower loading head; the detection mechanism comprises a pressure sensor, a first CT scanner, a second CT scanner, a third CT scanner and a console, wherein the console forms a closed circuit with the liquid crystal display, the pressure sensor and the CT scanner through an external power supply.
Description
Technical Field
The utility model belongs to geotechnical engineering test field, concretely relates to removable loading hair style load tester of calcareous sand.
Background
The sea filling and island making engineering of south China sea is a key ring of national strategy in China, but the sea filling and island making engineering mostly directly extracts the existing materials from the surrounding sea area to make islands, the calcareous sand is mostly distributed in the surrounding sea area, the determination of the strength of the calcareous sand becomes a key step, the particle strength has important influence on the macroscopic mechanical properties of the granular materials, but the calcareous sand particles are irregular in shape, the mechanical properties of the materials cannot be accurately displayed from multiple aspects by the existing load testing instrument, so the load testing instrument with the replaceable loading head is provided to test the particle strength, the utility model obtains stress-strain curves of the calcareous sand under more different conditions by replacing the upper and lower loading heads, better describes the mechanical properties of the materials, and the material is applied to the actual engineering, the multi-inner pores of the calcareous sand are far different from other materials, the mechanical property of the material is directly influenced by the number of the pores, the pore change of the calcareous sand material in the loading process can be observed by the CT scanner, and a solid foundation is laid for the application of the material in actual engineering.
Chinese patent CN203455227U discloses a point load tester, which is simple to operate, easy to obtain data, and high in precision of test results, but the tester can only test the test results under the effect of point load, and cannot well reflect the mechanical properties of the material, and in addition, the shape of the calcareous sand material is irregular, and the point load tester is also difficult to test the complete mechanical properties of the calcareous sand particles.
SUMMERY OF THE UTILITY MODEL
In order to solve the relation that the stress of current load tester can not accurate measurement calcareous sand meets an emergency, the utility model provides a removable loading hair style load tester of stress of measurable quantity calcareous sand meets an emergency relation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a load tester with a replaceable loading head for calcareous sand comprises a supporting mechanism, a loading mechanism and a detection mechanism;
the supporting mechanism comprises a lower platform, an upper platform, a left vertical beam, a right vertical beam and a rear vertical beam, wherein one end of the left vertical beam, one end of the right vertical beam and one end of the rear vertical beam are fixedly connected with the upper platform respectively, and the other end of the left vertical beam, the other end of the right vertical beam and the other end of the rear vertical beam are fixedly connected with the lower platform respectively;
the loading mechanism comprises a jack, a lower loading head and an upper loading head, the lower loading head is detachably and fixedly arranged on the jack disc, the lower loading head is provided with an extension section outwards along the side wall close to the jack disc, the extension section forms a clamping groove with a hollow inner part, the clamping groove is matched with the jack disc, and the clamping groove can be fixedly clamped on the jack disc; the upper loading head is detachably and fixedly arranged on the upper platform; the lower loading head and the upper loading head are opposite in the vertical direction, and the center of the lower loading head and the center of the upper loading head are on the same vertical line; a piece to be tested is arranged between the upper loading head and the lower loading head;
the detection mechanism comprises a pressure sensor, a first CT scanner, a second CT scanner, a third CT scanner and a console, the console comprises a liquid crystal display and a controller, the pressure sensor is arranged between the jack and the lower loading head, the first CT scanner, the second CT scanner and the third CT scanner are respectively and fixedly arranged on the left vertical beam, the right vertical beam and the rear vertical beam, and a scanning area can comprise a whole piece to be tested; the liquid crystal display, the pressure sensor, the first CT scanner, the second CT scanner and the third CT scanner are respectively and electrically connected with the controller of the console through leads, and the console respectively forms a closed circuit with the liquid crystal display, the pressure sensor, the first CT scanner, the second CT scanner and the third CT scanner through an external power supply.
Further, the upper loading head is mounted on the upper platform through a fixed support, and the upper loading head is connected with the fixed support through a bolt or a buckle.
Further, the upper loading head or the lower loading head is a point loading head, a line loading head or a surface loading head.
Furthermore, the CT scanner is respectively fixed on the left vertical beam, the right vertical beam and the rear vertical beam through a first fixing support, a second fixing support and a third fixing support.
The loading mode of jack divide into two kinds, firstly with the constant force loading, secondly through constantly promoting the power loading, two kinds of loading modes all load to the examination test piece that awaits measuring and destroy.
CT scanner can scan the material shape on every section of examination spare that awaits measuring in three direction to can reachd the shape and the volume of experimental material, CT scanner constantly scans in loading process, alright obtain the change in this kind of material hole of calcareous sand and the volume change of material.
Compared with the prior art, the beneficial effects of the utility model reside in that:
(1) the utility model discloses a CT scanner and pressure sensor reachs the relation of the time of this kind of material of calcareous sand in loading process and the relation, power and meeting an emergency and the relation that porosity changes and meets an emergency.
(2) The instrument can also obtain the mechanical characteristics of the calcareous sand material under the action of point load, linear load or surface load by replacing different loading heads up and down.
(3) The experimental instrument is simple to operate, does not need manual calculation, has high accuracy of test results, and can reflect the test results of materials under more stress conditions.
The patent is further described with reference to the following drawings and detailed description.
Drawings
Fig. 1 is a schematic structural view of the load tester with a replaceable loading head of the present invention.
Fig. 2 is a schematic structural view of the load tester with a replaceable loading head.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and specific embodiments.
As shown in the attached figures 1 and 2: in the figure: 1. the device comprises a lower platform, 2, an upper platform, 3-1, a left vertical beam, 3-2, a right vertical beam, 3-1, a rear vertical beam, 4, a liquid crystal display, 5, a controller, 6-1, a first fixed support, 6-2, a second fixed support, 6-3, a third fixed support, 7-1, a first CT scanner, 7-2, a second CT scanner, 7-3, a third CT scanner, 8, a jack, 9, a lower loading head, 10, an upper loading head, 11, a fixed support, 12, a clamping groove, 13 and a pressure sensor.
Example 1
A load tester with a replaceable loading head for calcareous sand comprises a supporting mechanism, a loading mechanism and a detection mechanism;
the supporting mechanism comprises a lower platform 1, an upper platform 2, a left vertical beam 3-1, a right vertical beam 3-2 and a rear vertical beam 3-3, wherein one end of the left vertical beam 3-1, one end of the right vertical beam 3-2 and one end of the rear vertical beam 3-3 are respectively fixedly connected with the upper platform 2, and the other end of the left vertical beam 3-1, the other end of the right vertical beam 3-2 and the other end of the rear vertical beam 3-3 are respectively fixedly connected with the lower platform 1;
the loading mechanism comprises a jack 8, a lower loading head 9 and an upper loading head 10, the upper loading head and the lower loading head are point loading heads, the lower loading head 9 is detachably and fixedly mounted on a top disc of the jack 8, an extension section is outwards arranged on the side, close to the top disc of the jack 8, of the lower loading head 9 along the side wall, a clamping groove 12 with a hollow inner part is formed in the extension section, the clamping groove 12 is matched with the top disc of the jack 8, and the clamping groove 12 can be fixedly clamped on the top disc of the jack 8; the upper loading head 10 is mounted on the upper platform 2 through a fixed support 11, and the upper loading head 10 is connected with the fixed support 11 through a bolt.
The lower loading head 9 and the upper loading head 10 are opposite in the vertical direction, and the center of the lower loading head 9 and the center of the upper loading head 10 are on the same vertical line; a piece to be tested is arranged between the upper loading head 10 and the lower loading head 9;
the detection mechanism comprises a pressure sensor 13, a first CT scanner 7-1, a second CT scanner 7-2, a third CT scanner 7-3 and a console, the console comprises a liquid crystal display 4 and a controller 5, the pressure sensor 13 is arranged between the jack 8 and the lower loading head 9, the CT scanners are respectively fixed on the left vertical beam 3-1, the right vertical beam 3-2 and the rear vertical beam 3-3 through a first fixing support 6-1, a second fixing support 6-2 and a third fixing support 6-3, and a scanning area can comprise the whole piece to be tested; the liquid crystal display 4, the pressure sensor 13, the first CT scanner 7-1, the second CT scanner 7-2 and the third CT scanner 7-3 are respectively and electrically connected with the controller 5 of the console through leads, and the console is respectively and electrically connected with the liquid crystal display 4, the pressure sensor 13, the first CT scanner 7-1, the second CT scanner 7-2 and the third CT scanner 7-3 through an external power supply to form a closed circuit. In a specific experiment, different upper and lower loading heads are selected according to needs, the upper loading head 10 and the lower loading head 9 are replaced, a loading mode (force-invariant loading or force-enhanced loading) is input into the controller 5, a loading function is achieved by lifting the jack 8 upwards, pressure change in the loading process is obtained through the pressure sensor 13, volume change of a sample to be loaded is measured in real time by the first CT scanner 7-1, the second CT scanner 7-2 and the third CT scanner 7-3 in the loading process, and a mechanical image is displayed by the liquid crystal display 4.
This patent simple structure, convenient operation easily shows the test result, uses various sensors and measures and calculate through the treater is automatic, and the test result accuracy is high, is applicable to the mechanical properties of test granule.
Claims (4)
1. The utility model provides a load tester of removable loading hair style of calcareous sand which characterized in that: the load tester comprises a supporting mechanism, a loading mechanism and a detection mechanism;
the supporting mechanism comprises a lower platform (1), an upper platform (2), a left vertical beam (3-1), a right vertical beam (3-2) and a rear vertical beam (3-3), wherein one end of the left vertical beam (3-1), one end of the right vertical beam (3-2) and one end of the rear vertical beam (3-3) are respectively fixedly connected with the upper platform (2), and the other end of the left vertical beam (3-1), the other end of the right vertical beam (3-2) and the other end of the rear vertical beam (3-3) are respectively fixedly connected with the lower platform (1);
the loading mechanism comprises a jack (8), a lower loading head (9) and an upper loading head (10), the lower loading head (9) is detachably and fixedly installed on a top disc of the jack (8), an extension section is outwards arranged on the side, close to the top disc of the jack (8), of the lower loading head (9) along the side wall, a clamping groove (12) with a hollow inner part is formed in the extension section, the clamping groove (12) is matched with the top disc of the jack (8), and the clamping groove (12) can be fixedly clamped on the top disc of the jack (8); the upper loading head (10) is detachably and fixedly arranged on the upper platform (2); the lower loading head (9) and the upper loading head (10) are opposite in the vertical direction, and the center of the lower loading head (9) and the center of the upper loading head (10) are on the same vertical line; a piece to be tested is arranged between the upper loading head (10) and the lower loading head (9);
the detection mechanism comprises a pressure sensor (13), a first CT scanner (7-1), a second CT scanner (7-2), a third CT scanner (7-3) and a console, the console comprises a liquid crystal display (4) and a controller (5), the pressure sensor (13) is arranged between the jack (8) and the lower loading head (9), the first CT scanner (7-1), the second CT scanner (7-2) and the third CT scanner (7-3) are fixedly arranged on the left vertical beam (3-1), the right vertical beam (3-2) and the rear vertical beam (3-3) respectively, and a scanning area can comprise a whole piece to be tested; the liquid crystal display (4), the pressure sensor (13), the CT scanner I (7-1), the CT scanner II (7-2) and the CT scanner III (7-3) are respectively and electrically connected with the controller (5) of the console through leads, and the console respectively forms a closed circuit with the liquid crystal display (4), the pressure sensor (13), the CT scanner I (7-1), the CT scanner II (7-2) and the CT scanner III (7-3) through an external power supply.
2. The replaceable loading head type load tester for calcareous sand according to claim 1, characterized in that: the upper loading head (10) is mounted on the upper platform (2) through a fixed support (11), and the upper loading head (10) is in bolt or buckle connection with the fixed support (11).
3. The replaceable loading head type load tester for calcareous sand according to claim 1, characterized in that: the upper loading head (10) or the lower loading head (9) is a point loading head, a line loading head or a surface loading head.
4. The replaceable loading head type load tester for calcareous sand according to claim 1, characterized in that: the CT scanner is respectively fixed on the left vertical beam (3-1), the right vertical beam (3-2) and the rear vertical beam (3-3) through a first fixing support (6-1), a second fixing support (6-2) and a third fixing support (6-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921636891.4U CN211318000U (en) | 2019-09-29 | 2019-09-29 | Replaceable loading head type load tester for calcareous sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921636891.4U CN211318000U (en) | 2019-09-29 | 2019-09-29 | Replaceable loading head type load tester for calcareous sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211318000U true CN211318000U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921636891.4U Active CN211318000U (en) | 2019-09-29 | 2019-09-29 | Replaceable loading head type load tester for calcareous sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211318000U (en) |
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2019
- 2019-09-29 CN CN201921636891.4U patent/CN211318000U/en active Active
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