Scattering and screening device for preparing soil sample in soil impact experiment
By designing a multi-stage down-tilt filter plate and a vibrating motor, the problem of inconsistent soil sample particle size and insufficient uniformity is solved, efficient screening and uniformization of soil sample is achieved, and the measurement accuracy of the impact test is improved.
Patent Information
- Application Number
- CN202421240144.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-03
AI Technical Summary
There are problems of inconsistent particle size and insufficient homogenization during the existing soil sample collection process, resulting in low measurement accuracy of subsequent impact tests.
A broken screening device for soil-stripping experiment soil sample preparation was designed. A multi-stage down-tilt soil filter plate and vibration motor were used to screen and crush the soil sample through the screen holes and vibration process in the frame to collect uniform soil sample.
Through the use of this device, the soil samples can be effectively screened and uniformized, the measurement accuracy of subsequent impact tests can be improved, and the reliability of the soil samples in the experiment can be ensured.
Smart Images
Figure CN222659220U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of soil sample screening equipment, in particular to a breaking and screening device for preparing soil samples for soil impact experiments. Background Art
[0002] Soil impact test refers to a method of using a hammer to compact soil samples to understand the compaction characteristics of the soil. This method uses different compaction efforts (hammer weight × drop distance × number of hammer strikes) to hammer soil samples with different water contents, and measures the corresponding dry bulk density, thereby obtaining the maximum dry bulk density (generally refers to aggregate accumulation or compact density) and the optimal water content, providing a basis for the design and construction of fill projects. Compaction tests can be divided into light compaction tests and heavy compaction tests.
[0003] However, the existing soil sample collection process is prone to problems such as uneven particle size and insufficient homogenization, which indirectly affects the measurement accuracy of subsequent compaction tests. To this end, we propose a sifting and screening device for soil sample preparation in soil impact tests to solve the above problems. Utility Model Content
[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art. The utility model provides a scattering and screening device for preparing soil samples for soil impact tests, which can screen the particle size of the soil samples.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a scattering and screening device for preparing soil samples for soil impact experiments, comprising: a frame and a base, the top of the frame is hollow and arranged horizontally, one end of the inner wall of the frame is welded with a downward-inclined filter plate, and the other end is open, and triangular platforms are also welded on the four corners of the side of the frame, and the four corners of the bottom of the base are connected to the triangular platforms as a whole through vibration springs, a vibration motor is fixed to the bottom of the frame through a fixing member, both sides of the frame extend downward and are embedded in the base, and a material holding plate and a pushing member are fixed at the downward extension, a slide groove is also opened on the inner wall of the frame at the edge corresponding to the material holding plate, the slide groove guide is arranged at the open end of the frame, the material holding plate is slidably connected in the slide groove, and the pushing member is used to drive the material holding plate to reciprocate in the direction of the slide groove.
[0006] Furthermore, the filter plate is a stepped multi-layer structure, sieve holes are evenly distributed on each layer of the filter plate, and smooth shafts are provided at the connection between adjacent filter plate layers.
[0007] Furthermore, the pushing member includes a servo motor, a screw rod, a bearing seat and a synchronization block. The servo motor is fixedly connected to the base, the bearing seat is fixed to one end of the base corresponding to the opening of the frame, the screw rod is located at the bottom of the material holding plate, one end of which is coaxially fixed to the output end of the servo motor, and the other end is rotatably connected to the bearing seat, the synchronization block is welded to the center of the bottom of the material holding plate, and the center of which is matched with the screw rod thread.
[0008] Furthermore, the downwardly extending parts on both sides of the frame are in an inverted triangular shape, and the fixing member is fixed on the downwardly extending parts of the frame.
[0009] Furthermore, the fixing part is composed of a plurality of profile plates, which include an inclined plate, a triangular plate, a reinforcing plate and an angle steel. The inclined plate is fixed to the frame at an angle corresponding to the oblique side of the inverted triangular lower extending portion of the frame. The triangular plate structure corresponds to the structure of the lower extending portion of the frame. The reinforcing plate is laterally inserted into the triangular plate. Both ends of the angle steel are fixed to the frame. One end of the triangular plate is welded to the inclined plate, and the other end is welded to the angle steel.
[0010] Furthermore, the vibration motors include two, which are symmetrically fixed on the back of the inclined plate.
[0011] Furthermore, the filter plate is welded with a downwardly inclined discharge plate at one end corresponding to the frame opening, and relatively inwardly inclined anti-overflow plates are fixed on both sides of the frame opening, and the edges on both sides of the discharge plate are embedded in the anti-overflow plates.
[0012] Compared with the prior art, the beneficial effects of the utility model include: filtering and screening soil samples through multi-stage downward-inclined filter plates in the frame, the vibration process is realized by the vibration springs at the four corners of the frame and the vibration motor placed at the bottom of the frame, and the soil samples on the downward-inclined filter plates can continuously shake to the opening of the frame during the change of the center of gravity, and the sieve holes on the surface can block and crush soil samples with larger particles, and soil samples with smaller particles fall into the containing plate for collection for compaction test. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The disclosure of the present invention is described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:
[0014] Figure 1 Schematically shows an isometric structural diagram proposed according to one embodiment of the utility model;
[0015] Figure 2 Schematically shows a top view according to one embodiment of the utility model;
[0016] Figure 3 The bottom structure diagram proposed according to one embodiment of the utility model is schematically shown.
[0017] Numbers in the figure: 1. frame; 2. base; 3. filter plate; 4. triangular table; 5. vibration spring; 6. fixing part; 7. vibration motor; 8. material holding plate; 9. pushing part; 10. slide; 11. sieve hole; 12. shaft; 13. servo motor; 14. screw; 15. bearing seat; 16. synchronous block; 17. inclined plate; 18. triangular plate; 19. reinforcement plate; 20. angle steel; 21. discharge plate; 22. anti-overflow plate. DETAILED DESCRIPTION
[0018] It is easy to understand that according to the technical solution of the utility model, without changing the essential spirit of the utility model, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the utility model, and should not be regarded as the entirety of the utility model or as a limitation or restriction to the technical solution of the utility model.
[0019] According to one embodiment of the present invention, Figure 1-Figure 3 Shown.
[0020] As for the overall structure, in this embodiment, a breaking and screening device for preparing soil samples for soil impact experiments includes: a frame 1 and a base 2, the top of the frame 1 is hollow and arranged horizontally, one end of the inner wall of which is welded with a downward-inclined filter plate 3, and the other end is open, and triangular platforms 4 are also welded on the four corners of the side of the frame 1, and the four corners of the bottom of the base 2 are connected to the triangular platforms 4 as a whole through vibration springs 5, and a vibration motor 7 is fixed to the bottom of the frame 1 through a fixing member 6, and the two sides of the frame 1 extend downward and are embedded in the base 2, and a material holding plate 8 and a pushing member 9 are fixed at the downward extension, and a slide groove 10 is also opened on the inner wall of the frame 1 at the edge corresponding to the material holding plate 8, and the groove direction of the slide groove 10 is arranged to guide the open end of the frame 1, and the material holding plate 8 is slidably connected in the slide groove 10, and the pushing member 9 is used to drive the material holding plate 8 to reciprocate in the groove direction of the slide groove 10.
[0021] In this embodiment, the filter plate 3 is a stepped multi-layer structure, and sieve holes 11 are evenly distributed on each layer of the filter plate 3, and a smooth shaft 12 is provided at the connection between adjacent filter plates 3. As for the specific mechanism of the pusher 9 and the fixing member 6, the pusher 9 includes a servo motor 13, a screw rod 14, a bearing seat 15 and a synchronization block 16, the servo motor 13 is fixedly connected to the base 2, the bearing seat 15 is fixed to the end of the opening of the frame 1 on the base 2, the screw rod 14 is located at the bottom of the material holding plate 8, one end of which is coaxially fixed with the output end of the servo motor 13, and the other end is rotatably connected with the bearing seat 15, the synchronization block 16 is welded to the center of the bottom of the material holding plate 8, and the center thereof is threadedly matched with the screw rod 14, the lower extensions on both sides of the frame 1 are inverted triangles, and the fixing member 6 is fixed to the lower extension of the frame 1.
[0022] The fixing member 6 is composed of a plurality of profile plates, including an inclined plate 17, a triangular plate 18, a reinforcing plate 19 and an angle steel 20. The inclined plate 17 is fixed to the frame 1 at an angle corresponding to the oblique side of the inverted triangular downward extending portion of the frame 1. The structure of the triangular plate 18 corresponds to the structure of the downward extending portion of the frame 1. The reinforcing plate 19 is laterally inserted into the triangular plate 18. Both ends of the angle steel 20 are fixed to the frame 1. One end of the triangular plate 18 is welded to the inclined plate 17, and the other end is welded to the angle steel 20.
[0023] Furthermore, in this example, the vibration motors 7 include two and are symmetrically fixed on the back of the inclined plate 17. The filter plate 3 is also welded with a downwardly inclined discharge plate 21 at the end corresponding to the opening of the frame 1, and relatively inwardly inclined anti-overflow plates 22 are fixed on both sides of the opening of the frame 1, and the edges of both sides of the discharge plate 21 are embedded in the anti-overflow plates 22.
[0024] Through the above structure, first of all, for the filtering and screening of soil samples, the utility model receives the soil samples through the open frame 1, and filters and screens through the multi-stage downward-inclined filter plates 3 in the frame 1. There are smooth shafts 12 between the adjacent filter plates 3 to avoid blockage. The vibration process depends on the vibration springs 5 at the four corners of the frame 1 and the vibration motor 7 placed at the bottom of the frame 1. After the vibration motor 7 starts to vibrate, it drives the frame 1 to vibrate and screen with the assistance of the vibration springs 5. The soil samples on the downward-inclined filter plates 3 can continuously shake to the opening of the frame 1 during the change of the center of gravity. The sieve holes 11 on the surface block and crush the soil samples with larger particles, and the soil samples with smaller particles fall into the material holding plate 8 for collection.
[0025] Similarly, during the vibration process, in order to facilitate the transmission of force, the utility model has also made corresponding improvements to the structural layout of the frame 1, that is, the two sides of the frame 1 are triangularly extended downward, and the vibration motor is fixed in the hollow through the fixing member 6. The fixing member 6 is spliced by a triangular plate 18 similar to the downward extension structure of the frame 1, an inclined plate 17, and an angle steel 20, and is supplemented by a reinforcing plate 19 for horizontal fixing, which is more in line with the center position requirement of the inclined fixed vibration motor, and the vibration force transmission process is more stable and reliable.
[0026] After a certain amount of soil samples are collected, the servo motor 13 drives the output to drive the screw rod 14 to rotate in the bearing seat 15 at the other end of the frame 1, and then the synchronous block 16, under the action of the screw rod 14 thread and the sliding limit of the material holding plate 8 and the slide groove 10, can drive the material holding plate 8 to slide back and forth along the axial direction of the screw rod 14, that is, the material holding plate 8 is repeatedly sent out of the bottom of the open end of the frame 1, and then the operator recovers it for subsequent soil impact experiments.
[0027] The technical scope of the present invention is not limited to the contents described above. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical concept of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.
Claims
1. A device for breaking up and screening soil samples for soil impact test, characterized in that: It includes: a frame and a base, the top of the frame is hollow and arranged horizontally, one end of the inner wall of which is welded with a downward-inclined filter plate, and the other end is open, and triangular platforms are welded on the four corners of the side of the frame, and the four corners of the bottom of the base are connected to the triangular platform as a whole through vibration springs, and a vibration motor is fixed to the bottom of the frame through a fixing piece, the two sides of the frame extend downward and are embedded in the base, and a material holding plate and a pushing piece are fixed at the downward extension, and a slide groove is also opened on the inner wall of the frame at the edge corresponding to the material holding plate, and the slide groove guide is arranged at the open end of the frame, the material holding plate is slidably connected in the slide groove, and the pushing piece is used to drive the material holding plate to reciprocate in the direction of the slide groove.
2. The device for breaking up and screening soil samples for soil impact test according to claim 1, characterized in that: The filter plate is a stepped multi-layer structure, each layer of the filter plate is evenly distributed with sieve holes, and a smooth shaft rod is provided at the connection between adjacent filter plate layers.
3. The device for breaking up and screening soil samples for soil impact test according to claim 1, characterized in that: The pushing member includes a servo motor, a screw rod, a bearing seat and a synchronization block. The servo motor is fixedly connected to the base. The bearing seat is fixed on one end of the base corresponding to the opening of the frame. The screw rod is located at the bottom of the material holding plate, one end of which is coaxially fixed to the output end of the servo motor, and the other end is rotatably connected to the bearing seat. The synchronization block is welded to the center of the bottom of the material holding plate, and the center of the synchronization block is matched with the screw rod thread.
4. The device for breaking up and screening soil samples for soil impact test according to claim 1, characterized in that: The downwardly extending parts on both sides of the frame are in an inverted triangle shape, and the fixing parts are fixed on the downwardly extending parts of the frame.
5. The device for breaking up and screening soil samples for soil impact test according to claim 4, characterized in that: The fixing part is composed of a plurality of profile plates, including an inclined plate, a triangular plate, a reinforcing plate and an angle steel. The inclined plate is fixed to the frame at an angle corresponding to the oblique side of the inverted triangular lower extending portion of the frame. The triangular plate structure corresponds to the structure of the lower extending portion of the frame. The reinforcing plate is laterally inserted into the triangular plate. Both ends of the angle steel are fixed to the frame. One end of the triangular plate is welded to the inclined plate, and the other end is welded to the angle steel.
6. The device for breaking up and screening soil samples for soil impact test according to claim 5, characterized in that: The vibration motors include two and are symmetrically fixed on the back of the inclined plate.
7. The device for breaking up and screening soil samples for soil impact test according to claim 1, characterized in that: The filter plate is welded with a downwardly inclined discharge plate at one end corresponding to the frame opening, and relatively inwardly inclined anti-overflow plates are fixed on both sides of the frame opening, and the edges on both sides of the discharge plate are embedded in the anti-overflow plates.