CN211122859U - Soil distribution device for geotechnical model test - Google Patents
Soil distribution device for geotechnical model test Download PDFInfo
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- CN211122859U CN211122859U CN201921871406.1U CN201921871406U CN211122859U CN 211122859 U CN211122859 U CN 211122859U CN 201921871406 U CN201921871406 U CN 201921871406U CN 211122859 U CN211122859 U CN 211122859U
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Abstract
The utility model discloses a soil preparation device for geotechnical model test, which comprises a water storage device, a stirring mechanism and a soil sample cylinder; the stirring mechanism comprises a rotating motor, a supporting frame, a rotating rod, a fixed rod arm, a rotating stirring rod and a rotating blade; the output shaft of the rotating motor is a rotating rod, a connecting rod is arranged on the rotating rod and comprises a plurality of fixed rod arms, one end of each fixed rod arm is fixedly connected with the rotating rod, the other end of each fixed rod arm is connected with a rotating stirring rod, and rotating blades are arranged on the rotating stirring rod; the rotating rod and the fixed rod arm are hollow rods and are communicated, a water outlet hole is formed in the fixed rod arm, and the water storage device is communicated with the rotating rod; the bottom plate and the section of thick bamboo wall of a soil sample section of thick bamboo are articulated, the utility model discloses a bull stick, fixed lever arm and rotatory puddler carry the soil body with water in to stir, and rotating vane is even distribution in the barrel moreover, and rotating electrical machines drives bull stick, fixed lever arm and rotatory puddler and enables the soil body and stir uniformly, improves and joins in marriage native efficiency and uses manpower sparingly.
Description
Technical Field
The utility model belongs to geotechnique model test field, concretely relates to join in marriage native device for geotechnique model test.
Background
The geotechnical centrifugal model test is a simulation test technology for obtaining the deformation failure mechanism of a full scale model by placing a small scale model in an acceleration field formed by a centrifugal testing machine, and the basic principle is as follows; the geotechnical model is placed in a centrifuge rotating at a high speed, and the geotechnical model is enabled to bear the centrifugal acceleration action which is far greater than the gravity acceleration, so that the loss of the self weight of the geotechnical structure caused by the reduction of the size of the geotechnical model is compensated. In geotechnical engineering, the stress caused by the self weight of a soil body always dominates, the mechanical property of the soil changes along with the change of the stress magnitude, and the stress generated by the self weight of a conventional small-size model test is far smaller than that of a prototype, so that the characteristic of the prototype cannot be reproduced. The only way to solve this problem is to increase the dead weight of the model to make it equivalent to the prototype.
The engineering characteristics of the soil sample are determined by controlling the water content, which requires that the whole soil preparation process must be rigorous and scientific. For the soil sample size required by the laboratory, the tester often uses basic experimental tools such as shovels to set up and stir. The mode can be very laborious, the prepared soil sample cannot achieve an ideal effect, the test environment is not ideal, and most importantly, the test efficiency is greatly influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an efficient join in marriage native device, easy operation, low in cost, the stirring effect is good, uses manpower sparingly material resources, reduces working strength, improves experimental accuracy.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a soil preparation device for geotechnical model test comprises a water storage device, a stirring mechanism and a soil sample barrel; the stirring mechanism comprises a rotating motor, a supporting frame, a rotating rod, a fixed rod arm, a rotating stirring rod and a rotating blade; the output shaft of the rotating motor is a rotating rod, at least one group of connecting rods is arranged on the rotating rod, the group of connecting rods comprises a plurality of fixed rod arms, one end of each fixed rod arm is fixedly connected with the rotating rod, the other end of each fixed rod arm is connected with a rotating stirring rod, and rotating blades are arranged on the rotating stirring rod; the rotating rod and the fixed lever arm are hollow rods, the rotating rod is communicated with the inside of the fixed lever arm, a water outlet hole is formed in the fixed lever arm, a water inlet of the water storage device is communicated with a tap water pipe, and a water outlet of the water storage device is communicated with a water inlet of the rotating rod; the bottom plate of the soil sample cylinder is hinged with the cylinder wall, and a lock catch is arranged on one side opposite to the hinged side.
The support frame is a tripod support frame, and one end of support frame is connected with the top of a soil sample section of thick bamboo, and the other end is connected with rotating electrical machines.
At least three groups of connecting rods are arranged on the rotating rod, and each group of connecting rods comprises four fixed rod arms.
The water storage device comprises a water storage funnel and a water stop valve, and the water stop valve is arranged on a straight pipe section at the lower part of the water storage funnel.
The fixed lever arm is provided with an elevation angle with the horizontal direction, and the height of one end far away from the rotating rod is lower than that of one end connected with the rotating rod.
The outer side of the wall of the soil sample cylinder is provided with a fixed bearing column, the bottom of the fixed bearing column is provided with a base, and the distance from the bottom plate of the soil sample cylinder to the ground is greater than the diameter of the soil sample cylinder.
The rotary stirring rod is a hollow rod, the fixed rod arm is communicated with the rotary stirring rod, and the fixed rod arm and the rotary stirring rod are connected or integrally manufactured through a welding process; the rotary stirring rod is provided with a water outlet hole.
The top of the soil sample cylinder is provided with a cylinder cover.
The rotating blades are rectangular blades or paddle type blades.
The bottom plate of the soil sample cylinder is hinged with the cylinder wall through a spring hinge.
Compared with the prior art, the utility model discloses following beneficial effect has at least: the utility model discloses can the close check add the water yield, carry the water to the soil body through bull stick, fixed lever arm and rotatory puddler, and stir, and rotating vane is even distribution in the barrel, and the rotating electrical machines drives bull stick, fixed lever arm and rotatory puddler and can make the soil body stir evenly, improves and joins in marriage soil efficiency and uses manpower sparingly, can make the even joining soil sample of water under the effect of slope aperture, makes the configuration effect of water and soil in the whole soil sample reach the best, has improved the accuracy of experiment; the soil sample is configured in the cylinder, so that waste of the soil sample is avoided, dust raising of a laboratory can be greatly reduced, and the experimental environment is better.
Furthermore, the tripod-shaped support frame provides stable support for the rotating electrical machines to be connected with the soil sample cylinder.
Furthermore, the density that multiunit connecting rod and a plurality of fixed lever arm and rotatory puddler can improve rotatory stirring vane makes the stirring more even.
Furthermore, the fixed lever arm is provided with an elevation angle with the horizontal direction, the height of one end far away from the rotating rod direction is lower than that of one end connected with the rotating rod, water flow can be conveyed to the rotary stirring rod more naturally, and the water delivery efficiency is improved.
Furthermore, the fixed bearing column supports the soil sample cylinder, the height of the fixed bearing column is larger than the diameter of the soil sample cylinder for the distance from the bottom plate of the soil sample cylinder to the ground, the bottom plate of the soil sample cylinder can be completely opened, and the soil sample can be easily and quickly led out after stirring is completed.
Furthermore, the rotating blades are rectangular blades or paddle type blades, the rectangular blades are favorable for mashing the blocky soil, and the paddle type blades have a better stirring effect.
Furthermore, the top of a soil sample cylinder is provided with a cylinder cover, so that dust at the initial stage of stirring is prevented from flying, the soil sample can not come out of the soil sample cylinder during stirring, and the test environment is kept clean and tidy.
Furthermore, the bottom plate of the soil sample cylinder is hinged with the cylinder wall through a spring hinge, so that the bottom plate can not drop instantly when being opened again, and the use safety is improved.
Drawings
FIG. 1 is an overall structure diagram of the present invention;
FIG. 2 is a front view of the overall structure of the present invention;
FIG. 3 is a schematic view of a rotating electrical machine connecting rod;
FIG. 4 is a front view of the fixed lever arm;
fig. 5 is a top view of the overall structure of the present invention;
fig. 6 is a bottom view of the overall structure of the present invention;
FIG. 7 is a structural view of a water storage apparatus;
the device comprises a water storage device 1, a water storage funnel 11, a water stop valve 12, a stirring mechanism 2, a rotating motor 21, a support frame 22, a rotating rod 23, a fixed rod arm 24, a rotating stirring rod 25, a high-strength bolt 26, a rotating blade 27, a soil sample cylinder 28, a spring hinge 31, a lock catch 32, a fixed bearing column 33 and a base 34.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, 2 and 3, the soil preparation device for the geotechnical model test comprises a water storage device 1, a stirring mechanism 2 and a soil sample cylinder 28; the stirring mechanism 2 comprises a rotating motor 21, a support frame 22, a rotating rod 23, a fixed rod arm 24, a rotating stirring rod 25 and a rotating blade 27; the rotating rod 23 is coaxially connected with the output end of the rotating motor 21, at least one group of connecting rods is arranged on the rotating rod 23, the group of connecting rods comprises a plurality of fixed rod arms 24, one end of each fixed rod arm 24 is fixedly connected with the rotating rod 23, the other end of each fixed rod arm 24 is connected with a rotating stirring rod 25, and a rotating blade 27 is arranged on the rotating stirring rod 25; the rotating rod 23, the fixed rod arm 24 and the rotary stirring rod 25 are hollow rods and are communicated with each other, a water inlet of the water storage device 1 is communicated with a tap water pipe, and a water outlet of the water storage device is communicated with a water inlet of the rotating rod 23; the bottom plate of the soil sample cylinder 28 is hinged with the cylinder wall, and a lock catch 32 is arranged on one side opposite to the hinged side; the support frame 22 is a triangular support frame, one end of the support frame is connected with the top end of the soil sample cylinder 28, and the other end of the support frame is connected with the rotating motor 21.
The rotating blade is a rectangular or propeller blade.
Three groups of connecting rods are arranged on the rotating rod 23, and each group of connecting rods comprises four fixed rod arms 24.
The water storage device 1 comprises a water storage funnel 11 and a water stop valve 12, wherein the water stop valve 12 is arranged on a straight pipe section at the lower part of the water storage funnel 11.
As shown in fig. 4, the fixed lever arm 24 has an elevation angle with the horizontal direction, and the height of the end far away from the rotating lever 23 is lower than the height of the end connected with the rotating lever 23; the fixed lever arm 24 is provided with a plurality of water outlet holes.
As shown in fig. 5 and 6, a fixed bearing column 33 is provided on the outer side of the wall of the soil sample cylinder 28, and a base 34 is provided on the bottom of the fixed bearing column 33.
The top of the soil sample cylinder 28 is provided with a cylinder cover.
As shown in FIG. 7, the water storage device 1 comprises a water storage funnel 11 and a water stop valve 12, wherein the water stop valve 12 is arranged on a straight pipe section at the lower part of the water storage funnel 11, a water inlet of the water storage funnel 11 is connected with a water pipe to directly inject required water, the water quantity is monitored by scales on the wall of the water storage funnel, the maximum scale is 5000m L, the divided scale is 100m L, and after the target water quantity is reached, the water stop valve 12 is directly pulled, so that the purpose of controlling the water quantity can be achieved.
The stirring mechanism is arranged in the soil sample barrel 28, and the stirring mechanism 2 comprises a rotating motor 21, a support frame 2, a rotating rod 23, an inclined fixed rod arm 24, a rotating stirring rod 25, a high-strength bolt 26 and a rectangular rotating blade 27; the rotating rod 23 is coaxially connected with the output end of the rotating motor 21, one end of the inclined fixed rod arm 24 is fixedly connected with the rotating rod 23, the other end of the inclined fixed rod arm is connected with a rotating stirring rod 25, and the rotating stirring rod 25 is provided with a rectangular rotating blade 27.
The rotating rod 23 is used as an output shaft of the rotating motor 21 and is also used as a water conveying pipeline, so that water in the water storage funnel flows into the connecting fixed rod arm 24 from the rotating rod, the rotating motor 21 drives the rotating rod 23 to drive the rotating stirring rod 25 to rotate clockwise and anticlockwise alternately so as to fully stir the soil sample and the water, and a more uniform soil sample is obtained; the support frame 22 supports and connects the motor 21 and the water storage device 1.
The rotating rod 23 is a hollow rod, the rotating rod 23 transmits the power of the rotating motor to the fixed rod arm 24 and simultaneously transmits water to the fixed rod arm 24, and the rotating stirring rod 25 drives the rotating blades 27 to uniformly stir the soil sample at the position; the rotating rod 23 is communicated with the fixed rod arm 24, so that the water in the water storage funnel flows into the fixed rod arm 24 from the rotating rod.
As an optional embodiment of the utility model, fixed lever arm 24 is connected with bull stick 23, and fixed lever arm 24 lever arm has an angle of elevation with the horizontal direction, keeps away from 23 direction one ends of bull stick highly to be less than the height of connecting 23 one ends of bull stick, makes the water in the water storage device even fall on the soil sample under the drive of bull stick 3, and fixed lever arm 24 still connects rotatory puddler 25, makes the soil sample transversely can both receive the stirring effect with vertically.
Optionally, the rotary stirring rod 25 is welded to the rotary blade 27, and integrally stirred under the driving of the rotary motor 21, and the rotary stirring rod 25 is communicated with the fixed lever arm 24 to form a water flow channel.
Optionally, the rotary stirring rod 25 and the fixed lever arm 24 are connected through a high-strength bolt 26, so that the whole stirring mechanism is prevented from loosening in the stirring process, and the rotary stirring rod 25 and the fixed lever arm 24 can be detached.
The rotating blades 27 are welded on the rotating stirring rod 25 and driven by the rotating motor 21 to rotate clockwise and anticlockwise alternately to stir the soil sample added with water.
The blade 27 is a rectangular blade or a paddle blade.
The stirring mechanism 2 and the soil body to be stirred are arranged in the soil sample cylinder 28, so that the amount of the soil sample can be controlled, water is prevented from splashing in the rotation process, and an ideal soil mixing effect is ensured.
The bottom of the soil sample cylinder 28 is provided with a spring hinge 31, a lock catch 32, a fixed bearing column 33 and a base 34; the bottom plate of the soil sample cylinder 28 is connected with one side of the wall of the soil sample cylinder by a spring hinge 31, and the other side is provided with a lock catch 32.
The spring hinge 31 is arranged at the bottom of the soil sample barrel 28 and is connected with the wall and the bottom of the soil sample barrel to enable the soil sample barrel and the bottom to rotate relatively; the lock catch 32, the spring hinge 31 and the soil sample barrel bottom plate form a soil discharging system, and the configured soil sample can be directly dismounted by opening the lock catch. The property of the soil sample cannot be damaged in the whole soil preparation process, and the water content of the soil sample can be controlled more accurately.
The fixed bearing column 33 and the base 34 carry the entire device.
Under the power provided by the rotating motor 21, the fixed lever arm 24 and the rotating stirring rod 25 are driven to rotate; after entering from the water storage funnel 11, water passes through the rotating rod 23 and flows out through a small hole in the fixed rod arm 24 in the rotating process; after the water uniformly flows to the soil sample, a uniform soil sample with set water content can be obtained under the stirring action of the rotating blades 27 and the rotating stirring rod 25; after the rotation is finished, the lock catch 32 is opened to take out all the prepared soil samples.
Claims (10)
1. A soil preparation device for an earth model test is characterized by comprising a water storage device (1), a stirring mechanism (2) and a soil sample cylinder (28); the stirring mechanism (2) comprises a rotating motor (21), a support frame (22), a rotating rod (23), a fixed rod arm (24), a rotating stirring rod (25) and a rotating blade (27); the output shaft of the rotating motor (21) is a rotating rod (23), at least one group of connecting rods is arranged on the rotating rod (23), one group of connecting rods comprises a plurality of fixed rod arms (24), one end of each fixed rod arm (24) is fixedly connected with the rotating rod (23), the other end of each fixed rod arm is connected with a rotating stirring rod (25), and rotating blades (27) are arranged on the rotating stirring rod (25); the rotating rod (23) and the fixed lever arm (24) are hollow rods, the rotating rod (23) is communicated with the inside of the fixed lever arm (24), a water outlet hole is formed in the fixed lever arm (24), a water inlet of the water storage device (1) is communicated with a tap water pipe, and a water outlet of the water storage device is communicated with a water inlet of the rotating rod (23); the bottom plate of the soil sample cylinder (28) is hinged with the cylinder wall, and one side opposite to the hinged side is provided with a lock catch (32).
2. The soil distribution device for an earth model test according to claim 1, wherein the support frame (22) is a tripod support frame, one end of the support frame is connected with the top end of the soil sample cylinder (28), and the other end is connected with the rotating motor (21).
3. Soil distribution device for geotechnical model experiments according to claim 1, characterized in that at least three sets of connecting rods are provided on the rotating rod (23), each set of connecting rods comprising four fixed rod arms (24).
4. The soil distribution device for the geotechnical model test according to claim 1, wherein the water storage device (1) comprises a water storage funnel (11) and a water stop valve (12), and the water stop valve (12) is arranged on a straight pipe section at the lower part of the water storage funnel (11).
5. The soil distributing device for geotechnical model test according to claim 1, wherein the fixed lever arm (24) has an elevation angle with the horizontal direction, and the height of the end far away from the rotating rod (23) is lower than the height of the end connected with the rotating rod (23).
6. The soil distribution device for the geotechnical model test according to claim 1, wherein the outer side of the wall of the soil sample cylinder (28) is provided with a fixed bearing column (33), the bottom of the fixed bearing column (33) is provided with a base (34), and the distance from the bottom plate of the soil sample cylinder (28) to the ground is larger than the diameter of the soil sample cylinder (28).
7. The soil proportioning device for the geotechnical model test according to claim 1, wherein the rotary stirring rod (25) is a hollow rod, the fixed rod arm (24) is communicated with the rotary stirring rod (25), and the fixed rod arm (24) and the rotary stirring rod (25) are connected or integrally manufactured through a welding process; the rotary stirring rod (25) is provided with a water outlet hole.
8. The soil distributing device for geotechnical model test according to claim 1, characterized in that the top of soil sample cylinder (28) is provided with a cylinder cover.
9. The soil distributing device for geotechnical model test according to claim 1, characterized in that the rotating blades (27) are rectangular blades or paddle blades.
10. The soil distribution device for geotechnical model test according to claim 1, characterized in that the bottom plate of soil sample cylinder (28) is hinged with the cylinder wall through spring hinge (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921871406.1U CN211122859U (en) | 2019-11-01 | 2019-11-01 | Soil distribution device for geotechnical model test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921871406.1U CN211122859U (en) | 2019-11-01 | 2019-11-01 | Soil distribution device for geotechnical model test |
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| Publication Number | Publication Date |
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| CN211122859U true CN211122859U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921871406.1U Expired - Fee Related CN211122859U (en) | 2019-11-01 | 2019-11-01 | Soil distribution device for geotechnical model test |
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| CN (1) | CN211122859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235532A (en) * | 2021-12-17 | 2022-03-25 | 长安大学 | Integrated soil distribution device for geotechnical model test and use method |
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2019
- 2019-11-01 CN CN201921871406.1U patent/CN211122859U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235532A (en) * | 2021-12-17 | 2022-03-25 | 长安大学 | Integrated soil distribution device for geotechnical model test and use method |
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Granted publication date: 20200728 Termination date: 20211101 |