Screening device for geotechnical test

Abstract

The utility model relates to the technical field of soil test equipment, in particular to a screening device for a soil test, which comprises a rotary drum, a supporting assembly and a driving assembly, the number of the supporting assemblies is two, the two supporting assemblies are arranged at the two ends of the rotary drum respectively, the driving assembly is arranged between the two supporting assemblies and used for controlling the rotary drum to rotate, a plurality of filter screens are arranged in the rotary drum in a sliding mode, a feeding port of the rotary drum tilts upwards, and the size of meshes of the filter screens is as follows: the closer to the feeding port, the larger the meshes are; through the arrangement of the rotary drum, the filter screen, the cleaning assembly and the material storage assembly, by means of the arranged filter screen and the arranged cleaning assembly, when the raw material screening speed is reduced after the filter screen is blocked, the cleaning assembly can automatically clean the filter screen, and the effect that the filter screen can be cleaned without shutdown is achieved; the number of raw materials among the multiple stock bins can be visually seen through the main box body, and the efficiency of evaluating the uniformity of soil can be conveniently improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of geotechnical test equipment, especially a screening device for geotechnical test. BACKGROUND

[0002] The screening device used in civil engineering test is mainly used for particle analysis of soil samples, which is a very important test in civil engineering. The soil sample can be divided into different particle size components through the screening device, so as to analyze the particle size distribution of the soil. This is crucial to understand the properties of the soil, such as permeability, compressibility and stability.

[0003] The screening device for geotechnical test disclosed in Chinese patent No. CN212856596U, the screening device for geotechnical test, by setting the sieve plate and the screening box, when the sieve hole is blocked, the test personnel only need to clean the sieve plate, improve the convenience of cleaning.

[0004] However, compared with the prior art in the related field, the device cannot intuitively let the test personnel know the specific amount of the soil sample divided into different particle size components, resulting in low efficiency in evaluating the uniformity of the soil. When the filter screen is blocked, the machine needs to be stopped for cleaning, which makes the cleaning process more complicated and affects the screening progress of the equipment. UTILITY MODEL CONTENT

[0005] The utility model aims at overcoming the shortcomings of the prior art, solving the problems mentioned in the background art, and providing a screening device for geotechnical test.

[0006] The utility model achieves the purpose by the following technical scheme: a screening device for geotechnical test, comprising a rotating drum, a support assembly and a driving assembly; the number of support assemblies is two, two support assemblies are respectively arranged at both ends of the rotating drum, the driving assembly is arranged between the two support assemblies, the driving assembly is used for controlling the rotation of the rotating drum, a plurality of filter screens are slidably arranged in the rotating drum, the inlet of the rotating drum is upwardly curved, the mesh size of the plurality of filter screens is: the closer to the inlet, the larger the mesh size; a fixed plate is fixedly arranged on the support assembly away from the inlet, the center of the fixed plate in the rotating drum is provided with a cleaning assembly;

[0007] The cleaning assembly comprises a fixed rod fixedly installed on the fixed plate, a fixed ring is fixedly installed on the rear side of each of the plurality of filter screens, the filter screen and the fixed ring are connected through an elastic element, a brush is fixedly arranged on the upper side of the outer surface of the fixed ring, when the mesh of the filter screen is not blocked or the number of blocked meshes is small, the filter screen will remain in the initial position, at this time the brush does not contact the filter screen, when the mesh of the filter screen is seriously blocked, the filter screen will slide to the side of the brush under the pressure of the material, at this time the brush will contact the filter screen;

[0008] The front side of the rotating drum close to the filter screen is provided with a discharge port, and the inside of the discharge port is hingedly provided with a baffle, a plurality of baffles are hingedly connected to the rotating drum through a rotating shaft, one end of the rotating shaft close to the feeding port of the rotating drum is fixedly provided with a rotating handle, a latch is inserted into the rotating handle, and the rotating drum is provided with a latch hole corresponding to the latch.

[0009] Preferably, the support assembly comprises a first base, and a plurality of support wheel groups are symmetrically and fixedly installed on the top of the first base; the outer surface of the rotating drum is fixedly provided with a rotating ring corresponding to the position of the support wheel group; and the rotating ring is rotationally matched with the support wheel group.

[0010] Preferably, the driving assembly comprises a second base, a support is fixedly installed on one side of the top of the second base, a driving gear is rotationally arranged in the support, a motor for controlling the rotation of the driving gear is fixedly installed on the outer side of the support, and a gear ring is fixedly installed on the outer surface of the rotating drum corresponding to the position of the driving gear; and the gear ring is meshed with the driving gear.

[0011] Preferably, the storage assembly comprises a main box body placed on the top of the first base and the second base, and the main box body is provided with a material bin corresponding to the position of the plurality of discharge ports.

[0012] Preferably, the end of the main box body is provided with a fitting groove, the main box body is matched with the fitting groove, and the material of the main box body is organic glass.

[0013] Preferably, the inner wall of the rotating drum is fixedly provided with a plurality of prisms, the plurality of filter screens are provided with a sliding groove corresponding to the position of the prisms, and the plurality of filter screens are provided with a movable hole corresponding to the position of the fixed rod.

[0014] Beneficial effects:

[0015] The soil test screening device, by setting the rotating drum, the filter screen, the cleaning assembly and the storage assembly, the filter screen is automatically cleaned by the cleaning assembly when the raw material screening speed is reduced after the filter screen is blocked, the effect of cleaning the filter screen without stopping is realized, the convenience and the screening efficiency during the use of the equipment are effectively improved, and the efficiency of evaluating the uniformity of the soil is improved by directly observing the amount of raw material between the plurality of material bins through the main box body. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating labor intensity.

[0017] Figure 1It is the first shaft side schematic view of the rotary drum of the utility model;

[0018] Figure 2 It is the second shaft side schematic view of the rotary drum of the utility model;

[0019] Figure 3 It is the third shaft side schematic view of the rotary drum of the utility model;

[0020] Figure 4 It is the state schematic view of the baffle of the utility model when closing;

[0021] Figure 5 It is the state schematic view of the baffle of the utility model when opening;

[0022] Figure 6 It is the utility model Figure 5 It is the structure enlarged schematic view of A place in the utility model;

[0023] Figure 7 It is the internal structure schematic view of the rotary drum of the utility model;

[0024] Figure 8 It is the utility model Figure 7 It is the structure enlarged schematic view of B place in the utility model.

[0025] In the drawing: 1, rotary drum;101, discharge port;102, baffle;103, knob;104, bolt;105, insertion hole;106, prism;107, rotating shaft;2, support assembly;21, first base;22, support wheel group;23, rotating ring;3, drive assembly;31, second base;32, support;33, drive gear;34, motor;35, gear ring;4, filter screen;5, fixed plate;51, fitting groove;6, cleaning assembly;61, fixed rod;62, fixed ring;63, elastic member;64, brush;7, storage assembly;71, main box body;72, hopper. DETAILED DESCRIPTION

[0026] In the description of the utility model, it needs to be explained that, unless there is explicit provision and limitation, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, also can be detachable connection, or integrally connected;It can be mechanical connection, also can be electrical connection;It can be directly connected, also can be indirectly connected through intermediate medium, it can be the communication inside two elements.For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0027] The additional aspects and advantages of the utility model will be further given in the following description combined with the drawings, part will become obvious from the following description, or understand through the practice of the utility model.

[0028] AsFigures 1 to 8 As shown in the utility model provides a kind of screening device for geotechnical test, including rotary drum 1, support assembly 2 and drive assembly 3;The number of support assembly 2 is two, two support assembly 2 is respectively arranged at the both ends of rotary drum 1, drive assembly 3 is arranged between two support assembly 2, drive assembly 3 is used to control rotary drum 1 rotation, the inside of rotary drum 1 is slidably provided with multiple filter screens 4, the feed inlet of rotary drum 1 is upwardly curved, the mesh size of multiple filter screens 4 is: the closer to the feed inlet, the larger the mesh size, the support assembly 2 away from feed inlet is fixedly provided with fixed plate 5, fixed plate 5 is located at the center of the inside of rotary drum 1 and is provided with cleaning assembly 6;

[0029] Cleaning assembly 6 includes fixed rod 61 fixedly installed on fixed plate 5, fixed rod 61 is fixedly installed with fixed ring 62 at the back side of multiple filter screens 4, and the filter screen 4 and the fixed ring 62 are connected through the elastic element 63, the upper side of the outer surface of the fixed ring 62 is fixedly provided with the brush 64, when the mesh of the filter screen 4 is not blocked or the number of blocked mesh is less, the filter screen 4 will remain in the initial position, at this time, the brush 64 is not in contact with the filter screen 4, when the mesh of the filter screen 4 is blocked seriously, the filter screen 4 will slide to the side of the brush 64 under the pressure of the material, at this time, the brush 64 will be in contact with the filter screen 4;

[0030] The front side of rotary drum 1 close to filter screen 4 is provided with discharge port 101, the inside of discharge port 101 is hingedly provided with baffle 102, the shape of baffle 102 is arc-shaped, so that baffle 102 can well fit discharge port 101, multiple baffles 102 are hingedly connected with rotary drum 1 through rotating shaft 107, one end of rotating shaft 107 close to the feed inlet of rotary drum 1 is fixedly provided with handle 103, handle 103 is inserted with latch 104, rotary drum 1 is provided with insertion hole 105 corresponding to the position of latch 104, the inside of support assembly 2 and drive assembly 3 is provided with storage assembly 7 for receiving material.

[0031] As a preferred technical scheme of the utility model, Figure 3 As shown in the utility model, support assembly 2 includes first base 21, first base 21 is symmetrically fixedly installed with support wheel group 22 on the top, rotary drum 1 is fixedly installed with rotating ring 23 on the outer surface corresponding to the position of support wheel group 22, rotating ring 23 is rotationally matched with support wheel group 22, drive assembly 3 includes second base 31, second base 31 is fixedly installed with support 32 on one side of the top, support 32 is rotationally provided with drive gear 33 in the inside, motor 34 for controlling the rotation of drive gear 33 is fixedly installed on the outside of support 32, gear ring 35 is fixedly installed on the outer surface of rotary drum 1 corresponding to the position of drive gear 33, gear ring 35 is engaged with drive gear 33, the rotation of drive gear 33 is controlled by motor 34, then rotary drum 1 is controlled to rotate by gear ring 35, the rotation stability of rotary drum 1 can be ensured by the rotation matching of rotating ring 23 and support wheel group 22.

[0032] As a preferred technical scheme of the utility model, as shown in Figures 3 to 5 The inner wall of the rotating drum 1 is fixedly provided with a plurality of prisms 106, a plurality of sliding grooves are formed in the positions corresponding to the prisms 106 of the filter screens 4, and a plurality of movable holes are formed in the positions corresponding to the fixed rods 61 of the filter screens 4. When the rotating drum 1 rotates, the plurality of prisms 106 can be used to turn over the raw materials in the lower layer, and then when the prisms 106 rotate to the upper side of the fixed rods 61 with the rotating drum 1, the raw materials brought out in the lower layer can be poured on the upper layer of raw materials, so as to improve the screening efficiency of the raw materials.

[0033] As a preferred technical scheme of the utility model, as shown in Figures 4 to 7 The storage assembly 7 includes a main box body 71 placed on the top of the first base 21 and the second base 31, a material bin 72 is formed in the main box body 71 at positions corresponding to a plurality of discharge ports 101, a fixed plate 5 is provided with an embedded groove 51 at the end of the main box body 71, the main box body 71 is matched with the embedded groove 51, and the material of the main box body 71 is organic glass. After the raw materials are screened, the raw materials on the front side of the plurality of filter screens 4 can enter the material bin 72 for storage by pulling out the bolt 104 and then opening the baffle 102. Then, the staff can intuitively see the amount of raw materials between the plurality of material bins 72 through the main box body 71, so as to improve the efficiency of evaluating the uniformity of the soil, and after analysis, the main box body 71 can be pulled out, and the raw materials in the main box body 71 can be poured out, so as to perform the test on the next batch of materials.

[0034] The working process is as follows:

[0035] S1, as shown in Figure 3 When in use, the raw materials are poured into the rotating drum 1 through the feeding port, and then the driving gear 33 is controlled to rotate by the motor 34, and then the driving gear 33 controls the rotating drum 1 to rotate through the gear ring 35.

[0036] S2, as shown in Figure 7 When the rotating drum 1 rotates, the inclination of the rotating drum 1 can be used to screen the raw materials through the plurality of filter screens 4, so as to separate and store raw materials of different sizes.

[0037] S3, as shown in Figure 4 and Figure 5 When the rotating drum 1 rotates, the plurality of prisms 106 can be used to turn over the raw materials in the lower layer, and then when the prisms 106 rotate to the upper side of the fixed rods 61 with the rotating drum 1, the raw materials brought out in the lower layer can be poured on the upper layer of raw materials, so as to improve the screening efficiency of the raw materials.

[0038] S4, as shown in Figure 7 and Figure 8As shown, when the mesh of the filter screen 4 is not blocked or the number of blocked mesh is small, the filter screen 4 remains in the initial position, at this time the brush 64 is not in contact with the filter screen 4, when the mesh of the filter screen 4 is blocked seriously, the filter screen 4 will be pressed by the material, and the elastic member 63 will slide to one side of the brush 64, at this time the brush 64 will be in contact with the filter screen 4;

[0039] S5, as shown in Figure 7 and Figure 8 As shown, when the brush 64 is in contact with the filter screen 4, through the rotation of the filter screen 4, the brush 64 can clear the blocked mesh of the filter screen 4, so that the filter screen 4 recovers unobstructed;

[0040] S6, as shown in Figures 4 to 7 As shown, after the raw material screening is completed, the plug 104 is pulled out, and then the baffle 102 is opened, at this time the raw material in front of the plurality of filter screens 4 will enter the storage bin 72 for storage, then the worker can intuitively see the amount of raw material between the plurality of storage bins 72 through the main box 71, so as to improve the efficiency of evaluating the uniformity of the soil.

[0041] The soil test screening device, by setting the rotating drum, the filter screen, the cleaning assembly and the storage assembly, using the set filter screen and cleaning assembly, when the raw material screening speed is reduced after the filter screen is blocked, the cleaning assembly can automatically clean the filter screen, realizing the effect of cleaning the filter screen without stopping, effectively improving the convenience and screening efficiency of the equipment in use, using the set storage assembly, the amount of raw material between the plurality of storage bins can be intuitively seen through the main box, so as to improve the efficiency of evaluating the uniformity of the soil.

[0042] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A sieving device for geotechnical testing, characterised in that: Including rotating drum (1), support assembly (2) and drive assembly (3);The number of support assembly (2) is two, two support assembly (2) is respectively arranged at the both ends of rotating drum (1), drive assembly (3) is arranged between two support assembly (2), drive assembly (3) is used for controlling rotating drum (1) rotation, the inside of rotating drum (1) is slidably provided with a plurality of filter screens (4), the feed inlet of rotating drum (1) is upwardly curved, the mesh size of a plurality of filter screens (4) is: the closer to the feed inlet, the larger the mesh size is;The support assembly (2) away from the feed inlet is fixedly provided with a fixed plate (5), the fixed plate (5) is located at the center of the inside of rotating drum (1) and is provided with a cleaning assembly (6); The cleaning assembly (6) includes a fixed rod (61) fixedly installed on the fixed plate (5), a plurality of fixed rings (62) are fixedly installed on the rear side of the fixed rod (61), the filter screen (4) and the fixed ring (62) are connected through the elastic element (63), the upper side of the outer surface of the fixed ring (62) is fixedly provided with a brush (64), when the mesh of the filter screen (4) is not blocked or the number of blocked meshes is small, the filter screen (4) will remain in the initial position, at this time, the brush (64) is not in contact with the filter screen (4), when the mesh of the filter screen (4) is seriously blocked, the filter screen (4) will slide to one side of the brush (64) under the pressure of the material, at this time, the brush (64) will be in contact with the filter screen (4); The front side of rotating drum (1) near filter screen (4) is provided with a discharge port (101), the inside of discharge port (101) is hingedly provided with a baffle (102), a plurality of baffles (102) are hingedly connected with rotating drum (1) through pivot shaft (107), one end of pivot shaft (107) near the feed inlet of rotating drum (1) is fixedly provided with a handle (103), the handle (103) is inserted with a latch (104), rotating drum (1) is provided with a plug hole (105) corresponding to the position of latch (104), the inside of support assembly (2) and drive assembly (3) is provided with a storage assembly (7) for receiving materials.

2. A sieve apparatus for soil testing according to claim 1, characterized in that: The support assembly (2) includes a first base (21), a plurality of support wheel groups (22) are fixedly installed on the top of the first base (21) symmetrically, rotating rings (23) are fixedly installed on the outer surface of rotating drum (1) corresponding to the positions of support wheel groups (22), and the rotating rings (23) are rotatably connected with the support wheel groups (22).

3. A sieve apparatus for soil testing according to claim 2, wherein: The driving assembly (3) comprises a second base (31), one side of the top of the second base (31) is fixedly installed with a support (32), the inside of the support (32) is rotationally provided with a driving gear (33), the outer side of the support (32) is fixedly installed with a motor (34) for controlling the rotation of the driving gear (33), the outer surface of the rotating drum (1) is fixedly installed with a gear ring (35) corresponding to the position of the driving gear (33), and the gear ring (35) is engaged with the driving gear (33).

4. A sieve apparatus for soil testing according to claim 3, wherein: The storage assembly (7) comprises a main box (71) placed on the top of the first base (21) and the second base (31), and the main box (71) is provided with a material bin (72) corresponding to the position of each of the discharge ports (101).

5. A sieve apparatus for soil testing according to claim 4, wherein: The end of the main box (71) is provided with a fitting groove (51), the main box (71) is matched with the fitting groove (51), and the material of the main box (71) is organic glass.

6. A sieve apparatus for soil testing according to claim 1, wherein: The inner wall of the rotating drum (1) is fixedly provided with a plurality of prisms (106), a plurality of the filter screens (4) are provided with a sliding groove corresponding to the position of the prisms (106), and a plurality of the filter screens (4) are provided with a movable hole corresponding to the position of the fixed rod (61).

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