Water washing and screening test device for detecting aggregate raw materials in highway engineering test

Abstract

The invention discloses a highway engineering test detection aggregate raw material washing and screening test device, and relates to the technical field of aggregate raw material test.The highway engineering test detection aggregate raw material washing and screening test device comprises a test box, a feeding port is formed in the test box, a cover body is installed on the feeding port in a clamped mode, and a first cavity and a second cavity are formed in the test box; a one-way pipe is fixedly communicated with the interior of the test box, a valve is installed on the one-way pipe, and the two ends of the one-way pipe are communicated with the first cavity and the second cavity respectively. The device has the advantages that aggregates can be quickly scattered, then a solution formed after the aggregates are scattered can be quickly subjected to regional particle concentration detection and re-detection after filtration by virtue of the cooperation of the filter screen plate, the one-way pipe and a plurality of optical turbidity measuring elements, raw materials of the aggregates can be more accurately subjected to required detection, and the detection efficiency is improved. And the whole test operation is simple and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of aggregate raw material testing, in particular to a water washing and screening testing device for testing aggregate raw materials in highway engineering tests. Background Art

[0002] Whether the aggregate raw materials meet the requirements is the prerequisite for ensuring the quality of highway engineering construction. Before the specific construction, random inspections will be carried out and the required experimental tests will be carried out. The existing experimental testing method is to break up the aggregate, mix it with water for cleaning, screen it after cleaning, and then test it after screening. The overall operation is relatively cumbersome, and the test time is relatively long. At the same time, the test accuracy is relatively low. For this reason, we propose a water washing and screening test device for highway engineering test aggregate raw materials to solve the above problems. Summary of the invention

[0003] The purpose of the present invention is to solve the problems raised in the background technology, and to propose a water washing and screening test device for testing aggregate raw materials in highway engineering tests.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A road engineering test device for testing aggregate raw materials for washing and screening, comprising a test box, a feed port is provided on the test box, a cover body is clamped and installed on the feed port, a cavity 1 and a cavity 2 are provided on the test box, a one-way pipe is fixedly connected in the test box, a valve is installed on the one-way pipe, and two ends of the one-way pipe are respectively connected with the cavity 1 and the cavity 2; An arc-shaped mesh plate and a plurality of filter mesh plates are fixedly installed in the cavity one, and a plurality of annular seats are fixedly installed in the cavity one and the cavity two, and a stepped annular seat is rotatably installed on each of the annular seats, and an optical turbidity measuring element is fixedly installed on each of the stepped annular seats through a mounting block; A cover body is fixedly mounted on the test box, two rotating rods are rotatably mounted between the test box and the cover body, a plurality of gears 1 are fixedly mounted on the two rotating rods, the lower end of the step ring seat is divided into an annular gear arrangement, and the gear 1 is meshed with the corresponding step ring seat, and a rotation control member is installed between the cover body and the two rotating rods; The test box is equipped with an auxiliary detection component matched with the optical turbidity measuring element.

[0005] In the above-mentioned highway engineering test device for washing and screening aggregate raw materials, a step groove is provided on the lower surface of each annular seat, the end face shape of each step annular seat is stepped, and the step annular seat is rotatably mounted on the corresponding step groove.

[0006] In the above-mentioned highway engineering test and detection aggregate raw material water washing and screening test device, the rotation control component includes a servo motor, a shaft, a one-way bearing, and a transmission belt. A servo motor is fixedly installed on the cover body, and a shaft is fixedly installed on the driving end of the servo motor, and the shaft is rotatably installed in the cover body. Two one-way bearings are installed on the shaft, and the self-locking directions of the two one-way bearings are opposite. A transmission belt is sleeved between the two one-way bearings and the corresponding rotating rods.

[0007] In the above-mentioned highway engineering test and detection aggregate raw material water washing and screening test device, the auxiliary detection component includes a power component, a connecting part, a screw, a round rod, a transmission part, a nut, a movable ring, a control component, and a breaking up component. The test box is equipped with a power component, and a screw and a round rod are rotatably installed in the cavity. A connecting part is installed between the power component and the screw, and a transmission part is installed between the power component and the round rod. The screw is provided with a plurality of reciprocating threads, and a movable ring is installed on each of the reciprocating threads through a nut, and a breaking up component is installed on each of the movable rings through a control component.

[0008] In the above-mentioned highway engineering test device for testing aggregate raw materials by washing and screening, the power assembly includes servo motor 2 and shaft 2. The servo motor 2 is fixedly installed on the outside of the test box, and the driving end of the servo motor 2 is fixedly installed with shaft 2, and one end of shaft 2 is rotatably located in cavity 1.

[0009] In the above-mentioned highway engineering test and detection aggregate raw material water washing and screening test device, the connecting part includes a one-way bearing three and a rod frame, the one-way bearing three is installed on the shaft body two, and a plurality of rod frames are fixedly installed on the outer wall of the one-way bearing three, and one end of the rod frame is fixed to the screw rod.

[0010] In the above-mentioned highway engineering test and detection aggregate raw material water washing and screening test device, the transmission part includes a one-way bearing two and a transmission belt two. The one-way bearing two is installed on the shaft body two, and the self-locking direction of the one-way bearing two is opposite to that of the one-way bearing three. A transmission belt two is sleeved between the one-way bearing two and the round rod.

[0011] In the above-mentioned highway engineering test and detection aggregate raw material water washing and screening test device, the control component includes a mounting frame, a gear 2, a gear 3, and a rod 2. Each of the moving rings is equipped with a mounting frame, and each of the mounting frames is rotatably equipped with a gear 2 and a gear 3, and the gear 2 is meshed with the corresponding gear 3. Two rods 2 are fixedly installed on each of the mounting frames; A plurality of strip rods are fixedly mounted on each of the second gears, a plurality of strip grooves are opened on the round rods, and the strip rods are slidably mounted on the corresponding strip grooves.

[0012] In the above-mentioned highway engineering test and detection aggregate raw material water washing and screening test device, the mounting frame includes a rod 1, a support ring, and a support block. A rod 1 is fixedly installed on the front and rear sides of each movable ring, a support ring is fixedly installed at one end of the two rods 1, and gear 2 is rotatably installed between the corresponding two support rings, a gear 2 is fixedly installed on one side of the two support rings, and gear 3 is rotatably installed between the two support blocks, and one end of the rod 2 is fixed to the corresponding support block.

[0013] In the above-mentioned highway engineering test and detection aggregate raw material water washing and screening test device, the breaking up component includes a rotating ring and a breaking up rod. A rotating ring is rotatably installed between the two corresponding rods, and the rotating ring is meshed with the corresponding gear three-phase. Multiple breaking up rods are fixedly installed on each of the rotating rings.

[0014] Compared with the prior art, the present invention has the following advantages: 1: The aggregate can be quickly broken up, and then the solution formed after the aggregate is broken up can be quickly tested for particle concentration in different regions by using the filter plate, one-way tube and multiple optical turbidity measuring elements, as well as re-testing after filtration. The raw materials of the aggregate can be tested more accurately, and the overall test operation is simple.

[0015] 2: By using multiple filter screens, multiple test areas can be formed in cavity one, which facilitates more accurate testing. At the same time, after the preliminary test, another test is performed in cavity two to further improve the accuracy of the test results.

[0016] 3: The aggregate can be quickly broken up by using the rotatable rotating ring and breaking rod. At the same time, the power source that drives the rotating ring and breaking rod to rotate can be used to control the position of the rotating ring and breaking rod as needed, so as to break up the aggregate more quickly and improve the efficiency of the overall test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a highway engineering test device for testing aggregate raw materials proposed by the present invention; Figure 2 for Figure 1 A cross-sectional view from another perspective; Figure 3 for Figure 2 A schematic diagram of the structure of part A in the middle; Figure 4 for Figure 2 A schematic diagram of the structure after removing the cover body and the cover body; Figure 5 for Figure 4 Schematic diagram after removing the test box and rotating it to a certain angle; Figure 6 for Figure 5 Schematic diagram of the transfer rod after it rotates to a certain angle; Figure 7 for Figure 6 A schematic diagram of the structure of part B in the middle; Figure 8 for Figure 5 Schematic diagram of the middle annular seat after rotating a certain angle; Fig. 9 for Figure 5 Schematic diagram of the middle step ring seat after the part is rotated to a certain angle; Fig.10 for Figure 5 The enlarged schematic diagram of the structure of the two parts of the servo motor; Fig.11 for Fig.10 An enlarged schematic diagram of the structure of a single rotating ring part; Fig.12 for Fig.11 A schematic diagram of the structure enlargement of the middle C part; Fig.13 for Fig.11 Schematic diagram of the enlarged structure of the moving ring part.

[0018] In the figure: 1. Test box; 2. Cavity 1; 3. Cavity 2; 4. Feed port; 5. Cover; 6. Curved screen; 7. Filter screen; 8. One-way pipe; 9. Ring seat; 10. Step slide; 11. Step ring seat; 12. Mounting block; 13. Optical turbidity measuring element; 14. Servo motor 1; 15. Cover; 16. Shaft 1; 17. One-way bearing 1; 18. Transmission belt 1; 19. Rotating rod; 20, gear one; 21, servo motor two; 22, one-way bearing two; 23, one-way bearing three; 24, rod frame; 25, screw; 26, round rod; 27, transmission belt two; 28, nut; 29, moving ring; 30, rod one; 31, support ring; 32, gear two; 33, support block; 34, gear three; 35, rod two; 36, rotating ring; 37, breaking rod; 38, strip groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Reference Figure 1-Figure 13A highway engineering test and detection aggregate raw material water washing and screening test device, including a test box 1, a feed port 4 is opened on the test box 1, and a cover body 5 is installed on the feed port 4. The feed port 4 shown in the figure is a strip-shaped through hole, and the number is one. When specifically set, its shape, number and opening position can be selected according to needs. The test box 1 is provided with a cavity 1 2 and a cavity 2 3. Cavity 1 2 and cavity 2 3 are used for preliminary testing and re-testing after filtration. In the figure, preliminary testing is carried out in cavity 1 2, and cavity 2 3 is used for re-testing; a one-way pipe 8 is fixedly connected in the test box 1, and a valve is installed on the one-way pipe 8. The two ends of the one-way pipe 8 are respectively connected to cavity 1 2 and cavity 2 3. The valve and the one-way pipe 8 are used in combination to facilitate the required re-testing after the preliminary test.

[0021] An arc-shaped mesh plate 6 and a plurality of filter mesh plates 7 are fixedly installed in the cavity 2, and the mesh apertures of the arc-shaped mesh plate 6 and the plurality of filter mesh plates 7 decrease successively from top to bottom, and the plurality of filter mesh plates 7 are all arranged at an angle to facilitate the collection of particulate matter intercepted thereon; at the same time, a plurality of door bodies cooperating with the filter mesh plates 7 can be opened on the test box 1 to process the substances intercepted on the filter mesh plates 7 after all tests; a water outlet pipe with a valve (not shown in the figure) is provided on the test box 1, and the water outlet pipe is used to discharge the water in the test box 1 from it after all tests are completed.

[0022] Multiple annular seats 9 are fixedly installed in cavity 1 2 and cavity 2 3, and a stepped annular seat 11 is rotatably installed on each annular seat 9. The annular seat 9 located on cavity 1 2 cooperates with the corresponding filter screen plate 7 to perform the required test on the liquid concentration above the corresponding filter screen plate 7; a stepped chute 10 is provided on the lower surface of each annular seat 9, and the end face shape of each stepped annular seat 11 is stepped, and the part of the stepped annular seat 11 located below the corresponding annular seat 9 is set as annular teeth to facilitate subsequent control of its rotation, and the stepped annular seat 11 is rotatably installed on the corresponding stepped chute 10; an optical turbidity measuring element 13 is fixedly installed on each stepped annular seat 11 through a mounting block 12; The optical turbidity measuring element 13 is used to measure the turbidity of the liquid in the corresponding area, and is also used to measure the particle concentration in the liquid. The basic principle of turbidity measurement is to measure the scattering and absorption behavior of the suspended particles in the liquid sample to light. The liquid is illuminated by a light source, and the intensity of the scattered light is detected to infer the turbidity of the liquid. Common optical turbidity measurement principles include scattering method and transmission method; the operating principle of the scattering method: in this method, a light source (such as a laser or LED) is used to illuminate the sample. When the light passes through the liquid, the suspended particles will scatter the light. The intensity of the scattered light is related to the concentration, size and shape of the particles. The optical sensor is usually placed at a specific angle (such as 90°) to receive the scattered light, and the turbidity is calculated based on the intensity of the scattered light. Common instruments include turbidity meters; the operating principle of the transmission method: in the transmission method, the light source illuminates the liquid sample, and the sensor measures the light intensity after penetrating the liquid. Since the suspended particles absorb and scatter part of the light, the transmittance of the liquid will decrease, and the degree of decrease in the transmittance is proportional to the turbidity of the liquid.

[0023] Reference Figure 1-Figure 13 A cover body 15 is fixedly installed on the test box 1, and two rotating rods 19 are rotatably installed between the test box 1 and the cover body 15. A plurality of gears 20 are fixedly installed on the two rotating rods 19, and the gears 20 are meshed with the corresponding step ring seat 11, specifically, meshed with the annular teeth at the lower end of the corresponding step ring seat 11. When the gear 20 rotates, the corresponding step ring seat 11 can be driven to rotate. The rotation of the step ring seat 11 can drive the optical turbidity measuring element 13 to move, thereby controlling the optical turbidity measuring element 13 to be better in different orientations for the required detection.

[0024] A rotation control component is installed between the cover body 15 and the two rotating rods 19; the rotation control component includes a servo motor 14, a shaft 16, a one-way bearing 17, and a transmission belt 18. The servo motor 14 is fixedly installed on the cover body 15, and the shaft 16 is fixedly installed on the driving end of the servo motor 14, and the shaft 16 is rotatably installed in the cover body 15. Two one-way bearings 17 are installed on the shaft 16, and the self-locking directions of the two one-way bearings 17 are opposite. A transmission belt 18 is sleeved between the two one-way bearings 17 and the corresponding rotating rods 19. The transmission belt 18 can be chain driven or belt driven, and can be selected according to needs.

[0025] Reference Figure 1-Figure 13, an auxiliary detection component matched with the optical turbidity measuring element 13 is installed on the test box 1; the auxiliary detection component includes a power component, a connecting piece, a screw 25, a round rod 26, a transmission piece, a nut 28, a moving ring 29, a control component, and a breaking component. A power component is installed on the test box 1, and the power component includes a servo motor 21 and a shaft 2. A servo motor 21 is fixedly installed on the outside of the test box 1, and a shaft 2 is fixedly installed on the driving end of the servo motor 21, and one end of the shaft 2 is rotatably located in the cavity 1 2; a screw 25 and a round rod 26 are rotatably installed in the cavity 1 2, and a connecting piece is installed between the power component and the screw 25, and the connecting piece includes a one-way bearing 3 23 and a rod frame 24. A one-way bearing 3 23 is installed on the shaft 2, and a plurality of rod frames 24 are fixedly installed on the outer wall of the one-way bearing 3 23, and one end of the rod frame 24 is fixed to the screw 25.

[0026] A transmission member is installed between the power component and the round rod 26, and the transmission member includes a one-way bearing 22 and a transmission belt 27. The one-way bearing 22 is installed on the shaft body 2, and the self-locking direction of the one-way bearing 22 is opposite to that of the one-way bearing 3 23. A transmission belt 27 is sleeved between the one-way bearing 22 and the round rod 26; a plurality of reciprocating threads are provided on the screw 25, and a moving ring 29 is installed on each reciprocating thread through a nut 28, and a dispersing component is installed on each moving ring 29 through a control component; the control component includes a mounting frame, a gear 2 32, a gear 34, and a rod 2 35, and a mounting frame is installed on each moving ring 29, and a gear 2 32 and a gear 3 34 are rotatably installed on each mounting frame, and the gear 2 32 is meshed with the corresponding gear 3 34, and two rods 2 35 are fixedly installed on each mounting frame; the mounting frame includes Rod 1 30, support ring 31, support block 33, each movable ring 29 is fixedly installed with a rod 1 30 on both sides of the front and rear, one end of the two rods 1 30 is fixedly installed with a support ring 31, and gear 2 32 is rotatably installed between the corresponding two support rings 31, one side of the two support rings 31 is fixedly installed with a gear 2 32, and gear 3 34 is rotatably installed between the two support blocks 33, and one end of rod 2 35 is fixed with the corresponding support block 33; a plurality of strip rods are fixedly installed on each gear 2 32, a plurality of strip grooves 38 are opened on the round rod 26, and the strip rods are slidably installed on the corresponding strip grooves 38; the breaking up assembly includes a rotating ring 36 and a breaking up rod 37, a rotating ring 36 is rotatably installed between the corresponding two rods 2 35, and the rotating ring 36 is meshed with the corresponding gear 3 34, and a plurality of breaking up rods 37 are fixedly installed on each rotating ring 36.

[0027] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0028] In the present invention, the aggregate to be tested is poured into the cavity 1 2 through the feed port 4, the servo motor 21 is turned on, and the servo motor 21 is used to break up the aggregate. When the servo motor 21 drives the shaft body 2 to rotate forward, the one-way bearing 22 rotates, and the one-way bearing 3 23 does not drive the screw 25 to rotate through the rod frame 24. The forward and reverse rotations here are set for easy understanding. The one-way bearing 22 drives the round rod 26 to rotate through the transmission belt 27, and the round rod 26 drives the gear 2 32 to rotate. The gear 2 32 rotates through the gear 3 34 to drive the rotating ring 36 to rotate, and the rotating ring 36 rotates to drive the breaking rod 37 to rotate, thereby breaking up the aggregate; when the shaft body 2 is reversed, the one-way bearing 3 23 drives the screw 25 to rotate through the rod frame 24, and the screw 25 rotates and drives the moving ring 29 to move through the nut 28, and the moving ring 29 moves to drive the rotating ring 36 and the breaking rod 37 to move together, so as to break up the aggregate at different positions; The dispersed material falls downward through the arc-shaped mesh plate 6, and at this time, liquid (pure water) is injected into the test box 1, or it can be injected before the material is dispersed, and then the turbidity in the corresponding area above the corresponding filter mesh plate 7 is measured by the optical turbidity measuring element 13; During the measurement process, the position of the optical turbidity measuring element 13 can also be intermittently adjusted to further improve the accuracy of the detection. At the same time, during the measurement process, the rotating ring 36 and the breaking rod 37 can be in a rotating state, so that the liquid is in a relatively slow flow state, which can further improve the accuracy of the detection. When this part of the test is completed, the valve on the one-way tube 8 is opened to allow the liquid in cavity one 2 to flow into cavity two 3. A water pump can also be set in the test box 1 to ensure that the water flows completely into cavity two 3, and then the liquid in cavity two 3 is tested again through the optical turbidity measuring element 13; at the same time, the particles intercepted by the filter screen plate 7 are also collected for subsequent tests, such as weighing tests, to test the proportion of aggregate components by weighing.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A road engineering test device for testing aggregate raw materials by washing and screening, comprising a test box (1), the test box (1) being provided with a feed inlet (4), the feed inlet (4) being provided with a cover (5) mounted thereon, characterized in that: The test box (1) is provided with a cavity one (2) and a cavity two (3); a one-way pipe (8) is fixedly connected inside the test box (1), and a valve is installed on the one-way pipe (8); two ends of the one-way pipe (8) are respectively connected to the cavity one (2) and the cavity two (3); An arc-shaped mesh plate (6) and a plurality of filter mesh plates (7) are fixedly installed in the cavity one (2), and a plurality of annular seats (9) are fixedly installed in the cavity one (2) and the cavity two (3), each of the annular seats (9) is rotatably mounted with a stepped annular seat (11), and each of the stepped annular seats (11) is fixedly mounted with an optical turbidity measuring element (13) via a mounting block (12); A cover body (15) is fixedly mounted on the test box (1), two rotating rods (19) are rotatably mounted between the test box (1) and the cover body (15), a plurality of gears (20) are fixedly mounted on the two rotating rods (19), the lower end of the step ring seat (11) is divided into an annular gear arrangement, and the gears (20) are meshed with the corresponding step ring seat (11), and a rotation control member is installed between the cover body (15) and the two rotating rods (19); An auxiliary detection component that matches the optical turbidity measuring element (13) is installed on the test box (1).

2. A road engineering test and detection aggregate raw material washing and screening test device according to claim 1, characterized in that: A stepped slide groove (10) is provided on the lower surface of each of the annular seats (9), the end surface of each of the stepped annular seats (11) is in a stepped shape, and the stepped annular seats (11) are rotatably mounted on the corresponding stepped slide groove (10).

3. A road engineering test and detection aggregate raw material washing and screening test device according to claim 1, characterized in that: The rotation control component comprises a servo motor (14), a shaft (16), a one-way bearing (17), and a transmission belt (18). The cover (15) is fixedly mounted with the servo motor (14). The drive end of the servo motor (14) is fixedly mounted with the shaft (16), and the shaft (16) is rotatably mounted in the cover (15). Two one-way bearings (17) are mounted on the shaft (16), and the two one-way bearings (17) have opposite self-locking directions. A transmission belt (18) is sleeved between the two one-way bearings (17) and the corresponding rotating rods (19).

4. A road engineering test and detection aggregate raw material washing and screening test device according to claim 1, characterized in that: The auxiliary detection component comprises a power assembly, a connecting piece, a screw (25), a round rod (26), a transmission piece, a nut (28), a moving ring (29), a control assembly, and a breaking up assembly. The test box (1) is equipped with a power assembly, and the cavity (2) is rotatably equipped with a screw (25) and a round rod (26). A connecting piece is installed between the power assembly and the screw (25), and a transmission piece is installed between the power assembly and the round rod (26). The screw (25) is provided with a plurality of reciprocating threads, and each of the reciprocating threads is equipped with a moving ring (29) via a nut (28), and each of the moving rings (29) is equipped with a breaking up assembly via a control assembly.

5. A road engineering test and detection aggregate raw material washing and screening test device according to claim 4, characterized in that: The power assembly comprises a servo motor 2 (21) and a shaft 2. The servo motor 2 (21) is fixedly mounted on the outside of the test box (1). The drive end of the servo motor 2 (21) is fixedly mounted on the shaft 2, and one end of the shaft 2 is rotatably located in the cavity 1 (2).

6. A road engineering test and detection aggregate raw material washing and screening test device according to claim 5, characterized in that: The connecting member comprises a one-way bearing three (23) and a rod frame (24); the one-way bearing three (23) is mounted on the shaft body two; a plurality of rod frames (24) are fixedly mounted on the outer wall of the one-way bearing three (23); and one end of the rod frame (24) is fixed to the screw rod (25).

7. A road engineering test and detection aggregate raw material washing and screening test device according to claim 6, characterized in that: The transmission member comprises a one-way bearing (22) and a transmission belt (27). The one-way bearing (22) is mounted on the shaft body (2), and the self-locking direction of the one-way bearing (22) is opposite to that of the one-way bearing (23). The transmission belt (27) is sleeved between the one-way bearing (22) and the round rod (26).

8. A road engineering test and detection aggregate raw material washing and screening test device according to claim 7, characterized in that: The control assembly comprises a mounting frame, a second gear (32), a third gear (34), and a second rod (35), each of the movable rings (29) is mounted with a mounting frame, each of the mounting frames is rotatably mounted with a second gear (32) and a third gear (34), and the second gear (32) is meshed with the corresponding third gear (34), and each of the mounting frames is fixedly mounted with two second rods (35); A plurality of strip rods are fixedly mounted on each of the second gears (32), a plurality of strip grooves (38) are formed on the round rod (26), and the strip rods are slidably mounted on the corresponding strip grooves (38).

9. A road engineering test and detection aggregate raw material washing and screening test device according to claim 8, characterized in that: The mounting frame comprises a rod 1 (30), a support ring (31), and a support block (33); a rod 1 (30) is fixedly mounted on both the front and rear sides of each movable ring (29); a support ring (31) is fixedly mounted on one end of each of the rods 1 (30); and a gear 2 (32) is rotatably mounted between the corresponding two support rings (31); a gear 2 (32) is fixedly mounted on one side of each of the two support rings (31); and a gear 3 (34) is rotatably mounted between the two support blocks (33); and one end of the rod 2 (35) is fixed to the corresponding support block (33).

10. A road engineering test and detection aggregate raw material washing and screening test device according to claim 9, characterized in that: The dispersing assembly comprises a rotating ring (36) and a dispersing rod (37). A rotating ring (36) is rotatably mounted between the two corresponding rods (35), and the rotating ring (36) is meshed with the corresponding gear (34). A plurality of dispersing rods (37) are fixedly mounted on each rotating ring (36).

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