Machine-made sand sieving device
By combining the screen structure and the drive system, the problem in the prior art that only the same particle size of machine-made sand can be screened in the same batch is solved, and multi-particle size screening and convenient material discharge in the same batch are realized, thereby improving production efficiency and equipment utilization.
Patent Information
- Application Number
- CN202422232770.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The existing drum-type machine-made sand screening device can only screen machine-made sand of the same particle size in the same batch, and it is difficult to screen out machine-made sand of different particle sizes in one screening, resulting in the need for multiple operations, increasing equipment costs and floor space, and reducing production efficiency.
A combined structure including a first screen, a second screen and a third screen is adopted. The rotation and aperture adjustment of the screen are achieved through the cooperation of components such as a connecting block, a connecting ring, a support frame and a driving motor. It is capable of screening machine-made sand of different particle sizes in the same batch, and facilitates the dropping of machine-made sand after screening when only the first screen is used.
It realizes the precise screening of machine-made sand of different particle sizes in the same batch, reduces multiple screening operations, improves production efficiency, and reduces equipment costs and floor space.
Smart Images
Figure CN223352119U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screening devices, in particular to a machine-made sand screening device. Background Art
[0002] With the continuous development of the construction industry, the demand for machine-made sand, as an important building material, is growing. Machine-made sand is processed from rocks, ores and other raw materials through processes such as crushing and sand making. In order to ensure the quality of machine-made sand, it needs to be screened to remove impurities and particles that do not meet the particle size requirements. The machine-made sand screening device plays a vital role in the machine-made sand production process.
[0003] However, most existing drum-type machine-made sand screening devices can only screen machine-made sand of the same particle size in the same batch, and it is usually difficult to screen out machine-made sand of different particle sizes in one screening. This results in that in actual production, if machine-made sand of different particle sizes is to be obtained, multiple screening operations are often required, which not only increases equipment cost and floor space, but also reduces production efficiency and cannot meet the needs of efficient production. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a machine-made sand screening device, which solves the technical problem that the existing drum-type machine-made sand screening device can only screen machine-made sand of the same particle size in the same batch, and when only the first screen is used to screen the machine-made sand, it is inconvenient to let the machine-made sand fall out after screening.
[0005] Technical solution: To achieve the above objectives, the present invention is implemented through the following technical solutions: a machine-made sand screening device, comprising: a connecting block; a first screen, one end of which is stably connected to the connecting block, and the first screen is used for preliminary screening of machine-made sand; a second screen, one end of which is stably connected to the connecting block, and the second screen is used for secondary screening of machine-made sand; a third screen, one end of which is rotatably mounted on the connecting block, and the third screen is used to adjust the aperture of the second screen; the first screen is in the second screen, the second screen is in the third screen, the second screen is in contact with the third screen, and the horizontal center lines of the first screen, the second screen and the third screen coincide, wherein the material of the connecting block should have sufficient strength and stability to withstand the vibration and pressure of the screen during the screening process; the material of the first screen, the second screen and the third screen should be wear-resistant, corrosion-resistant, and have a certain rigidity to ensure the screening effect and service life.
[0006] In a further embodiment, a connecting ring is stably connected to the other end of the first screen and the second screen, and the connecting ring is stably installed with the third screen, wherein the diameter of the connecting ring should match the connecting block to ensure that the three screens remain horizontal after installation and the center lines coincide; the material of the connecting ring should also have sufficient strength and stability.
[0007] In a further embodiment, the support frame is rotatably connected to the connecting block and the connecting ring respectively, and the support frame is used to support the connecting block and the connecting ring, wherein the structure of the support frame should be firm and reliable and able to withstand the weight of the device and the vibration during the screening process; the rotating connection part should be made of wear-resistant material to reduce friction and wear.
[0008] In a further embodiment, the auxiliary block is stably connected to the support frame, and the auxiliary block is rotatably connected to the connecting ring. The auxiliary block is X-shaped, wherein the material of the auxiliary block should have high strength, and the connection with the support frame should be firm and reliable; the rotating connection part between the auxiliary block and the connecting ring should be lubricated to reduce friction.
[0009] In a further embodiment, there are multiple discharge ports, and the multiple discharge ports are opened on the support frame. The discharge ports are between the auxiliary blocks, and the multiple discharge ports are used for discharging the first screen and the second screen respectively. The size of the discharge port should be reasonably designed according to the discharge volume of the screen to ensure that the material can be discharged smoothly; a protective device should be set around the discharge port to prevent material from splashing, and a sealing device can be set at the discharge port of the second screen to block the discharge port.
[0010] In a further embodiment, there are two rotating blocks, and the two rotating blocks are stably connected to the two ends of the third screen. The rotating blocks are used to connect the third screen with the connecting block and the connecting ring, and the connection between the rotating block and the third screen should be firm and reliable.
[0011] In a further embodiment, there are multiple positioning screw holes, and multiple positioning screw holes are opened on the rotating block, and the positioning screw holes are used to position the rotation angle of the third screen; there are multiple bolts, and multiple bolts are used to fix the rotating block to the connecting block and the connecting ring, and the bolts are adapted to the positioning screw holes, wherein the position and number of the positioning screw holes should be reasonably designed according to actual needs to ensure that the third screen can be positioned at different angles; the material of the bolts should have sufficient strength to prevent loosening.
[0012] In a further embodiment, the drive motor is stably mounted on the support frame, and the output end of the drive motor is stably connected to a drive wheel, which is in contact with the connecting ring. The drive wheel is used to drive the connecting ring to rotate, and the power of the drive motor should be reasonably selected according to the size of the device and the screening requirements; the contact part between the drive wheel and the connecting ring should be made of wear-resistant material to increase the service life.
[0013] In a further embodiment, the apertures of the first sieve, the second sieve and the third sieve are the same, wherein the apertures of the three sieves should be determined according to specific screening requirements to ensure that the screening requirements of machine-made sand of different particle sizes can be met.
[0014] In a further embodiment, a feed port is provided on the support frame near the connecting block side, and the diameter of the feed port is at most the same as the diameter of the first screen. The feed port should be provided with a feed hopper or other diversion device to prevent material splashing; the position of the feed port should be convenient for operation and feeding.
[0015] Beneficial effects: 1. Through the cooperation of the first screen, the second screen, the third screen, the rotating block, the positioning screw holes, the connecting block and the connecting ring, the purpose of screening machine-made sand of different particle sizes in the same batch is achieved. The combination of the three screens and the third screen can be rotated by the rotating block and positioned by the positioning screw holes, so that the screen system can flexibly adjust the effective aperture; in actual use, the effect of accurately screening machine-made sand of different particle sizes in the same batch is achieved without multiple screening operations.
[0016] 2. By setting the first, second and third screens to have the same aperture, and when only the first screen is used for screening, the apertures of the second and third screens are made to coincide, the purpose of facilitating the falling of machine-made sand after screening is achieved; structures such as the connecting block, connecting ring and rotating block ensure the stability of the relative positions of the three screens; in actual use, the purpose of allowing machine-made sand to smoothly pass through the second and third screens and fall down is achieved when only the first screen is used for screening. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the practical embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 It is a structural diagram of the present utility model.
[0019] Figure 2 for Figure 1 Schematic diagram of the main cross-section structure.
[0020] Figure 3 A schematic diagram of the connection block structure.
[0021] Figure 4 This is a structural diagram of the auxiliary block.
[0022] Figure 5 Schematic diagram of the structure of the third screen.
[0023] The reference numerals in the figure are: 1, support frame; 101, discharge port; 102, auxiliary block; 2, connecting block; 3, connecting ring; 4, first screen; 5, second screen; 6, third screen; 601, rotating block; 6011, positioning screw hole; 7, driving motor; 8, bolt. DETAILED DESCRIPTION
[0024] To make the purpose, technical solutions, and advantages of this practical embodiment more clear, the technical solutions in this practical embodiment are clearly and completely described. Obviously, the described embodiments are part of the embodiments of this practical, not all of them. Based on the embodiments in this practical, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this practical.
[0025] The present invention provides a machine-made sand screening device that solves the technical problems of existing drum-type machine-made sand screening devices, which can only screen machine-made sand of the same particle size within the same batch, and are inconvenient to drop out after screening when using only the first screen. In actual use, the device can screen machine-made sand of different particle sizes within the same batch, and facilitates dropout when using only the first screen.
[0026] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.
[0027] Reference Figure 1-5 A machine-made sand screening device comprises: a connecting block 2; a first screen 4, one end of which is stably connected to the connecting block 2, and the first screen 4 is used for preliminary screening of machine-made sand; a second screen 5, one end of which is stably connected to the connecting block 2, and the second screen 5 is used for secondary screening of machine-made sand; a third screen 6, one end of which is rotatably mounted on the connecting block 2, and the third screen 6 is used to adjust the aperture of the second screen 5; the first screen 4 is in the second screen 5, the second screen 5 is in the third screen 6, the second screen 5 is in contact with the third screen 6, and the horizontal center lines of the first screen 4, the second screen 5 and the third screen 6 coincide.
[0028] Through the cooperation between the connecting block 2 and the first screen 4, the second screen 5 and the third screen 6 rotatably mounted on the connecting block 2 at one end, the first screen 4 performs preliminary screening of the machine-made sand, the second screen 5 performs secondary screening of the machine-made sand and the third screen 6 can adjust the aperture of the second screen 5; the first screen 4 is in the second screen 5, the second screen 5 is in the third screen 6 and their horizontal center lines coincide, ensuring orderly screening.
[0029] The connecting ring 3 is stably connected to the other end of the first sieve 4 and the second sieve 5 , and the connecting ring 3 and the third sieve 6 are stably installed.
[0030] The connecting ring 3 is stably connected to the other ends of the first screen 4 and the second screen 5 and stably installed with the third screen 6, thereby fixing the other ends of the three screens and ensuring the stability of the screens during rotation.
[0031] The support frame 1 is rotatably connected to the connection block 2 and the connection ring 3 respectively, and the support frame 1 is used to support the connection block 2 and the connection ring 3.
[0032] The support frame 1 is rotatably connected to the connecting block 2 and the connecting ring 3 respectively, thereby providing support for the connecting block 2 and the connecting ring 3, so that the entire screen system can stably perform rotary screening operations.
[0033] The auxiliary block 102 is stably connected to the support frame 1 and is rotatably connected to the connecting ring 3 . The auxiliary block 102 is in an X shape.
[0034] The auxiliary block 102 is stably connected to the support frame 1 and is rotatably connected to the connecting ring 3. The X-shaped auxiliary block 102 enhances the stability of the support frame 1 and assists the rotation of the connecting ring 3, making the screen rotate more smoothly.
[0035] There are multiple discharge ports 101 , and the multiple discharge ports 101 are opened on the support frame 1 . The discharge ports 101 are located between the auxiliary blocks 102 . The multiple discharge ports 101 are used for discharging the first screen 4 and the second screen 5 , respectively.
[0036] Multiple discharge ports 101 are provided on the support frame 1 and between the auxiliary blocks 102. Through this cooperation, the first screen 4 and the second screen 5 are discharged separately, thus avoiding material accumulation and improving screening efficiency.
[0037] There are two rotating blocks 601 , and the two rotating blocks 601 are stably connected to both ends of the third screen 6 . The rotating blocks 601 are used to connect the third screen 6 with the connecting block 2 and the connecting ring 3 .
[0038] The two rotating blocks 601 are stably connected to both ends of the third screen 6 , realizing the connection between the third screen 6 and the connecting block 2 and the connecting ring 3 , so that the third screen 6 can rotate between the connecting block 2 and the connecting ring 3 .
[0039] There are multiple positioning screw holes 6011, and multiple positioning screw holes 6011 are opened on the rotating block 601. The positioning screw holes 6011 are used for positioning the rotation angle of the third screen 6; there are multiple bolts 8, and multiple bolts 8 are used to fix the rotating block 601 to the connecting block 2 and the connecting ring 3, and the bolts 8 are adapted to the positioning screw holes 6011.
[0040] A positioning screw hole 6011 is opened on the rotating block 601, and the bolt 8 is adapted to the positioning screw hole 6011, which realizes the rotation angle positioning of the third screen 6 and the fixation of the rotating block 601 to the connecting block 2 and the connecting ring 3, thereby accurately adjusting the screening aperture.
[0041] The driving motor 7 is stably mounted on the support frame 1 , and the output end of the driving motor 7 is stably connected to a driving wheel, which is in contact with the connecting ring 3 , and is used to drive the connecting ring 3 to rotate.
[0042] The driving motor 7 is stably mounted on the support frame 1 , and the driving wheel at the output end of the driving motor 7 contacts the connecting ring 3 , thereby driving the connecting ring 3 to rotate and providing power for the screen system to perform machine-made sand screening.
[0043] The apertures of the first sieve 4 , the second sieve 5 and the third sieve 6 are the same.
[0044] The first screen 4, the second screen 5 and the third screen 6 have the same aperture. When only the first screen 4 is used for screening, the machine-made sand after screening can smoothly pass through the second and third screens 6 and fall down.
[0045] A feed port is provided on the support frame 1 near the connecting block 2 , and the diameter of the feed port is at most the same as the diameter of the first screen 4 .
[0046] A feed port is provided on the support frame 1 near the connecting block 2 and its diameter is at most the same as the diameter of the first screen 4, so that the machine-made sand to be screened is evenly fed into the first screen 4 for preliminary screening.
[0047] During use, the machine-made sand to be screened is fed into the feed port on the support frame 1 near the side of the connecting block 2. The diameter of the feed port is at most the same as the diameter of the first screen 4, ensuring that the machine-made sand enters the first screen 4 evenly for preliminary screening. The drive motor 7 is stably mounted on the support frame 1, and the drive wheel at its output end contacts the connecting ring 3, driving the connecting ring 3 to rotate. The connecting ring 3 is stably connected to the other end of the first screen 4 and the second screen 5 and is stably mounted to the third screen 6. At the same time, the support frame 1 is rotationally connected to the connecting block 2 and the connecting ring 3 respectively, providing support for the entire screen system and enabling it to stably perform rotary screening operations; the first screen 4 is in the second screen 5, the second screen 5 is in the third screen 6, and the horizontal center lines of the three screens coincide. The first screen 4 is used for preliminary screening of machine-made sand, and the second screen 5 is used for secondary screening of machine-made sand. One end of the third screen 6 is rotatably mounted on the connecting block 2, and is stably connected to the two ends of the third screen 6 through two rotating blocks 601, so that the third screen 6 can rotate between the connecting block 2 and the connecting ring 3. , thereby adjusting the aperture of the second screen 5; multiple positioning screw holes 6011 are opened on the rotating block 601, and the positioning screw holes 6011 are adapted to the bolts 8 and the positioning screw holes 6011 to realize the positioning of the rotation angle of the third screen 6 and the fixation of the rotating block 601 to the connecting block 2 and the connecting ring 3; multiple discharge ports 101 are opened on the support frame 1 and are located between the auxiliary blocks 102, which are used for discharging the first screen 4 and the second screen 5 respectively; when only the first screen 4 is used for screening, since the apertures of the first screen 4, the second screen 5 and the third screen 6 are the same, the sieve holes of the second screen 5 are made to coincide with the sieve holes of the third screen 6, so that the screened machine-made sand can smoothly pass through the second and third screens 6 and fall.
[0048] The protective devices, dust removal devices, control devices, feeding equipment and other devices required above all belong to the existing technology and are non-essential technical features in this application, so they are not described or drawn in the documents and drawings of this application; and the figures shown in the drawings are example figures, and their purpose is only to more intuitively show the key structure and connection relationship of a machine-made sand screening device of the utility model; in actual application, the appearance and size of the device can be adjusted and optimized according to specific needs.
[0049] To sum up, compared with the existing technology, the present invention has the following beneficial effects: through the cooperation of the first screen, the second screen, the third screen, the rotating block, the positioning screw hole and other structures, the purpose of screening different particle sizes of machine-made sand in the same batch is achieved; the special setting of the three screens and the design of the same aperture ensure that the machine-made sand after screening can smoothly pass through the second and third screens and fall down when only the first screen is used for screening.
[0050] This invention encompasses any alternatives, modifications, equivalents, and solutions that do not depart from the spirit and scope of this invention. While specific details are described in detail in the preferred embodiments of this invention to provide a thorough understanding, those skilled in the art will be able to fully understand this invention without these details. Furthermore, to avoid unnecessary confusion regarding the essence of this invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.
[0051] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. A machine-made sand screening device, characterized in that: include: Connect block (2); A first screen (4), one end of which is stably connected to the connecting block (2), and the first screen (4) is used for preliminary screening of machine-made sand; A second screen (5) has one end stably connected to the connecting block (2), and the second screen (5) is used for secondary screening of machine-made sand; A third screen (6), one end of which is rotatably mounted on the connecting block (2), and the third screen (6) is used to adjust the aperture of the second screen (5); The first screen (4) is located in the second screen (5), the second screen (5) is located in the third screen (6), the second screen (5) is in contact with the third screen (6), and the horizontal center lines of the first screen (4), the second screen (5) and the third screen (6) coincide.
2. The machine-made sand screening device according to claim 1, characterized in that: Also includes: The connecting ring (3) is stably connected to the first screen (4) and the other end of the second screen (5), and the connecting ring (3) and the third screen (6) are stably installed.
3. The machine-made sand screening device according to claim 2, characterized in that: Also includes: The support frame (1) is rotatably connected to the connection block (2) and the connection ring (3), respectively. The support frame (1) is used to support the connection block (2) and the connection ring (3).
4. The machine-made sand screening device according to claim 3, characterized in that: Also includes: The auxiliary block (102) is stably connected to the support frame (1), and the auxiliary block (102) is rotatably connected to the connecting ring (3), and the auxiliary block (102) is in an X shape.
5. The machine-made sand screening device according to claim 4, characterized in that: Also includes: There are multiple discharge ports (101), and the multiple discharge ports (101) are opened on the support frame (1). The discharge ports (101) are located between the auxiliary blocks (102). The multiple discharge ports (101) are used for discharging the first screen (4) and the second screen (5) respectively.
6. The machine-made sand screening device according to claim 2, characterized in that: Also includes: Two rotating blocks (601) are provided, and the two rotating blocks (601) are stably connected to the two ends of the third screen (6). The rotating blocks (601) are used to connect the third screen (6) with the connecting block (2) and the connecting ring (3).
7. The machine-made sand screening device according to claim 6, characterized in that: Also includes: There are multiple positioning screw holes (6011), and the multiple positioning screw holes (6011) are opened on the rotating block (601), and the positioning screw holes (6011) are used for positioning the rotation angle of the third screen (6); There are multiple bolts (8), and the multiple bolts (8) are used to fix the rotating block (601) with the connecting block (2) and the connecting ring (3). The bolts (8) are adapted to the positioning screw holes (6011).
8. The machine-made sand screening device according to claim 3, characterized in that: Also includes: A drive motor (7) is stably mounted on the support frame (1); an output end of the drive motor (7) is stably connected to a drive wheel, the drive wheel is in contact with the connecting ring (3), and the drive wheel is used to drive the connecting ring (3) to rotate.
9. The machine-made sand screening device according to claim 1, characterized in that: The apertures of the first sieve (4), the second sieve (5) and the third sieve (6) are the same.
10. The machine-made sand screening device according to claim 3, characterized in that: A feed port is provided on the support frame (1) near the connecting block (2), and the diameter of the feed port is at most the same as the diameter of the first screen (4).