A rapid screening device for soil testing

Abstract

The utility model belongs to screening device field, concretely relates to a kind of rapid screening device for soil detection, including bottom plate, the upper end of bottom plate is fixedly connected with two symmetrical distribution frames, the inside of each frame is fixedly connected with two symmetrical distribution guide rods, the middle part of guide rod is slidably connected with support frame, and two support frames are internally equipped with rotary barrel by bearing.The utility model is equipped with rotary barrel, screening barrel and polarizing block and other structures on the bottom plate, in the process of use, rotary barrel can be rotated by driving motor, centrifugal force generated during rotation of rotary barrel can be used to screen soil, and rotating polarizing block can drive screening barrel to vibrate up and down, and vibration can be amplified by spring, so that screening efficiency can be increased by centrifugal force and vibration simultaneously when screening soil.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, specifically a rapid screening device for soil testing. Background Technology

[0002] Soil testing analyzes the physical, chemical, and biological properties of soil using scientific methods to assess its fertility, pollution status, and suitability. It is widely used in agriculture, environmental protection, and engineering construction. Before testing, soil samples need to be pretreated. The most important step in pretreatment is using a screening device to separate debris such as stones and branches from the soil. However, current screening equipment only uses screen vibration to separate the soil, which is inefficient and can easily lead to changes in the soil's internal composition, affecting the test results. Furthermore, the vibration frequency is difficult to adjust during the screening process. Therefore, improvements to existing technology are needed. Utility Model Content

[0003] The purpose of this invention is to provide a rapid screening device for soil testing, which solves the problems of low soil screening efficiency and inconvenience in adjusting the vibration frequency.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a rapid screening device for soil testing, comprising a base plate, two symmetrically distributed frames fixedly connected to the upper end of the base plate, two symmetrically distributed guide rods fixedly connected inside each frame, a support frame slidably connected to the middle of each guide rod, a rotating drum installed inside the two support frames via bearings, two symmetrically distributed adjusting plates slidably connected to the outer side of each guide rod, an adjusting mechanism provided on the frame, a spring provided on the outer side of each guide rod, a screening drum fixedly connected inside the rotating drum, a central shaft fixedly connected to the middle of the inner side of the screening drum, a polarizing block fixedly connected to the outer side of the central shaft, and a drive motor fixedly installed on the outer side of the support frame located at the right end of the base plate.

[0005] Preferably, the adjusting plate is slidably connected to the frame, the support frame is slidably connected to the frame, and the output shaft of the drive motor is fixedly connected to the rotating drum, so that the drive motor can drive the rotating drum to rotate.

[0006] Preferably, one end of the spring is fixedly connected to the adjusting plate, and the other end of the spring is fixedly connected to the support frame. The spring can increase the vibration frequency of the support frame.

[0007] Preferably, the lower end of the rotating drum is provided with a discharge port, and a cover plate is hinged to the lower outer side of the rotating drum. The cover plate is located directly below the discharge port, through which the soil from the screening port can be discharged.

[0008] Preferably, the upper end of the screening barrel is connected to an end cap by a thread, the end cap is in contact with the rotating barrel, and the end cap can seal the screening barrel.

[0009] Preferably, the adjustment mechanism includes positive and negative screws. Two symmetrically distributed positive and negative screws are mounted on the front of the frame via bearings. A synchronous motor is fixedly mounted on the upper end of the frame. A threaded sleeve is fixedly connected to the outer side of the adjustment plate. A guide sleeve is fixedly connected to the outer side of the adjustment plate. A guide frame is fixedly mounted on the back of the frame. Both the guide sleeve and the threaded sleeve are slidably connected to the frame. The guide frame can guide the movement of the guide sleeve.

[0010] Preferably, the output shaft of the synchronous motor is fixedly connected to the positive and negative screws, the positive and negative screws are threadedly connected to the threaded sleeve, and the guide sleeve is slidably connected to the guide frame, so that the synchronous motor can drive the positive and negative screws to rotate.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model adds a rotating drum, a screening drum, and a polarizing block to the base plate. During use, the rotating drum can be driven by a drive motor to rotate. During the rotation of the rotating drum, the soil can be screened by the centrifugal force generated. At the same time, the rotating polarizing block can drive the screening drum to vibrate up and down. The vibration can be amplified by a spring. Thus, the screening efficiency can be increased by both centrifugal force and vibration when screening soil.

[0013] 2. This utility model adds an adjustment plate, positive and negative screws, and threaded sleeves to the frame. During the soil screening process, the adjustment plate can be moved by the threaded engagement between the positive and negative screws and the threaded sleeve. After the adjustment plate moves, the length of the spring can be adjusted. After the length of the spring changes, the spring force value can be changed, thereby adjusting the amplitude and frequency by changing the spring force value. Attached Figure Description

[0014] Figure 1 The overall structure of this utility model is three-dimensional. Figure 1 ;

[0015] Figure 2 The overall structure of this utility model is three-dimensional. Figure 2 ;

[0016] Figure 3 For the present utility model Figure 2 A magnified 3D view of the adjustment plate;

[0017] Figure 4 For the present utility model Figure 1 A front sectional view of the rotating drum;

[0018] Figure 5 For the present utility model Figure 2 Enlarged view of the structure of part A.

[0019] In the diagram: 1. Base plate; 2. Frame; 3. Guide rod; 4. Support frame; 5. Rotating drum; 6. Adjusting plate; 7. Adjusting mechanism; 8. Spring; 9. Screening drum; 10. Central shaft; 11. Polarizing block; 12. End cap; 13. Discharge port; 14. Cover plate; 15. Drive motor; 71. Positive and negative screws; 72. Synchronous motor; 73. Threaded sleeve; 74. Guide sleeve; 75. Guide frame. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 A rapid screening device for soil testing includes a base plate 1. Two symmetrically distributed frames 2 are fixedly connected to the upper end of the base plate 1. Two symmetrically distributed guide rods 3 are fixedly connected inside each frame 2. A support frame 4 is slidably connected to the middle of the guide rods 3. A rotating drum 5 is installed inside the two support frames 4 through bearings. Two symmetrically distributed adjusting plates 6 are slidably connected to the outer side of the guide rods 3. An adjusting mechanism 7 is provided on the frame 2. A spring 8 is provided on the outer side of the guide rods 3. A screening drum 9 is fixedly connected inside the rotating drum 5. A central shaft 10 is fixedly connected to the middle of the inner side of the screening drum 9. A polarizing block 11 is fixedly connected to the outer side of the central shaft 10. A drive motor 15 is fixedly installed on the outer side of the support frame 4 located at the right end of the base plate 1.

[0022] Please see Figure 1-5 The adjusting plate 6 is slidably connected to the frame 2, the support frame 4 is slidably connected to the frame 2, the output shaft of the drive motor 15 is fixedly connected to the rotating drum 5, the drive motor 15 can drive the rotating drum 5 to rotate, one end of the spring 8 is fixedly connected to the adjusting plate 6, and the other end of the spring 8 is fixedly connected to the support frame 4. The spring 8 can increase the vibration frequency of the support frame 4. The lower end of the rotating drum 5 is provided with a discharge port 13, and the lower outer side of the rotating drum 5 is hinged with a cover plate 14. The cover plate 14 is located directly below the discharge port 13, and the soil from the screening port can be discharged through the discharge port 13. The upper end of the screening drum 9 is connected with an end cap 12 by a thread. The end cap 12 contacts the rotating drum 5 and can seal the screening drum 9.

[0023] Please see Figure 1-5 The adjusting mechanism 7 includes positive and negative screws 71. Two symmetrically distributed positive and negative screws 71 are mounted on the front of the frame 2 via bearings. A synchronous motor 72 is fixedly mounted on the upper end of the frame 2. A threaded sleeve 73 is fixedly connected to the outer side of the adjusting plate 6. A guide sleeve 74 is fixedly connected to the outer side of the adjusting plate 6. A guide frame 75 is fixedly mounted on the back of the frame 2. Both the guide sleeve 74 and the threaded sleeve 73 are slidably connected to the frame 2. The guide frame 75 can guide the movement of the guide sleeve 74. The output shaft of the synchronous motor 72 is fixedly connected to the positive and negative screws 71. The positive and negative screws 71 are threadedly connected to the threaded sleeve 73. The guide sleeve 74 is slidably connected to the guide frame 75. The synchronous motor 72 can drive the positive and negative screws 71 to rotate.

[0024] The specific implementation process of this utility model is as follows: When in use, open the end cover 12 and put the soil into the screening barrel 9. After closing the end cover 12, start the drive motor 15. The drive motor 15 drives the rotating barrel 5 to rotate. During the rotation of the rotating barrel 5, the internal screening barrel 9 can be rotated, and the soil can be screened by centrifugal force. At the same time, the centrifugal force of the polarizing block 11 outside the central shaft 10 inside the screening barrel 9 drives the rotating barrel 5 to vibrate up and down. During the up and down vibration, the rotating barrel 5 repeatedly compresses and releases the spring 8, which can effectively increase the vibration frequency and amplitude of the screening barrel 9 through the elastic force of the spring 8, thereby effectively improving the screening efficiency of the soil.

[0025] When it is necessary to adjust the vibration frequency, two synchronous motors 72 are started simultaneously. The synchronous motors 72 drive the positive and negative screws 71 to rotate. During the rotation, the positive and negative screws 71 drive the adjusting plate 6 to move through the threaded engagement with the threaded sleeve 73. During the movement, the adjusting plate 6 can adjust the working length of the spring 8. When the working length of the spring 8 is appropriate, the synchronous motors 72 can be stopped, thus making it easy to adjust the vibration frequency.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid screening device for soil testing, comprising a base plate (1), characterized in that: Two symmetrically distributed frames (2) are fixedly connected to the upper end of the base plate (1). Two symmetrically distributed guide rods (3) are fixedly connected inside each frame (2). A support frame (4) is slidably connected to the middle of the guide rod (3). A rotating drum (5) is installed inside the two support frames (4) through bearings. Two symmetrically distributed adjustment plates (6) are slidably connected to the outer side of the guide rod (3). An adjustment mechanism (7) is provided on the frame (2). A spring (8) is provided on the outer side of the guide rod (3). A screening drum (9) is fixedly connected inside the rotating drum (5). A central shaft (10) is fixedly connected to the middle of the inner side of the screening drum (9). A polarizing block (11) is fixedly connected to the outer side of the central shaft (10). A drive motor (15) is fixedly installed on the outer side of the support frame (4) located at the right end of the base plate (1).

2. The rapid screening device for soil testing according to claim 1, characterized in that: The adjusting plate (6) is slidably connected to the frame (2), the support frame (4) is slidably connected to the frame (2), and the output shaft of the drive motor (15) is fixedly connected to the rotating drum (5).

3. The rapid screening device for soil testing according to claim 1, characterized in that: One end of the spring (8) is fixedly connected to the adjusting plate (6), and the other end of the spring (8) is fixedly connected to the support frame (4).

4. The rapid screening device for soil testing according to claim 1, characterized in that: The lower end of the rotating drum (5) is provided with a discharge port (13), and a cover plate (14) is hinged to the lower outer side of the rotating drum (5). The cover plate (14) is located directly below the discharge port (13).

5. A rapid screening device for soil testing according to claim 1, characterized in that: The upper end of the screening barrel (9) is connected to an end cap (12) by a thread, and the end cap (12) is in contact with the rotating barrel (5).

6. A rapid screening device for soil testing according to claim 1, characterized in that: The adjustment mechanism (7) includes positive and negative screws (71). Two symmetrically distributed positive and negative screws (71) are installed on the front of the frame (2) through bearings. A synchronous motor (72) is fixedly installed on the upper end of the frame (2). A threaded sleeve (73) is fixedly connected to the outside of the adjustment plate (6). A guide sleeve (74) is fixedly connected to the outside of the adjustment plate (6). A guide frame (75) is fixedly installed on the back of the frame (2). The guide sleeve (74) and the threaded sleeve (73) are both slidably connected to the frame (2).

7. A rapid screening device for soil testing according to claim 6, characterized in that: The output shaft of the synchronous motor (72) is fixedly connected to the positive and negative screws (71), the positive and negative screws (71) are connected to the threaded sleeve (73) by threads, and the guide sleeve (74) is slidably connected to the guide frame (75).

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