Rotary screen

Abstract

The utility model discloses a drum screen, and particularly relates to the technical field of ceramsite sand production, the drum screen comprises a blanking frame, two blanking seats which are symmetrically distributed are mounted on the blanking frame, an inner drum and an outer drum are jointly mounted between the two blanking seats, and a driving motor for driving the blanking seats to rotate is fixed on one side of the blanking frame; the screwing assembly is used for disassembling and assembling the discharging seat along the discharging frame; the scraping assembly comprises an inner scraping ring brush, an outer scraping ring brush and a mounting box, the inner scraping ring brush and the outer scraping ring brush are mounted between the inner cylinder and the outer cylinder, the mounting box is mounted on one side of the discharging base, and a moving groove is formed in the top end of the mounting box; through the arrangement of the scraping assembly, the inner scraping ring brush and the outer scraping ring brush can be scraped between the inner barrel and the outer barrel, the inner scraping ring brush and the outer scraping ring brush can be rapidly maintained or replaced in the inner barrel and the outer barrel, time and labor are saved, the ceramsite sand screening efficiency of the drum screen is greatly improved, and efficient ceramsite sand screening is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramsite sand production, in particular to a drum screen. Background Art

[0002] Ceramic sand is a ceramic particle product with high fracturing strength. During the production of ceramsite sand, it is generally screened through a drum screen to facilitate the subsequent processing of the ceramsite sand and improve the processing efficiency of the ceramsite sand.

[0003] In the Chinese patent with publication number CN211802224U, a percussion-type double-layer drum screen for the production of ceramsite sand is disclosed. The swing rod is pushed to swing by the extension of the electric telescopic rod stroke rod, and the left and right side walls of the percussion block are used to percuss the outer drum and the inner drum. The special structure and distribution position of the percussion block make the left and right side walls of the percussion block tangent to the outer drum and the inner drum during the percussion process, so that the percussion force is evenly distributed, the shaking effect is good, and the double-layer drum is prevented from getting stuck. However, in actual use, the percussion-type double-layer drum screen for the production of ceramsite sand is generally completed by the percussion units evenly distributed in the drum. However, during the long-term use of multiple percussion units, if maintenance or replacement is required, more labor and time may be required, which affects the maintenance or replacement efficiency of the percussion units, which is not only time-consuming and labor-intensive, but also reduces the screening efficiency of the drum screen for ceramsite sand, which is not convenient for efficient screening of ceramsite sand. Utility Model Content

[0004] The purpose of the utility model is to provide a drum screen. Through the arrangement of the scraping assembly, not only the inner and outer scraping ring brushes can scrape between the inner cylinder and the outer cylinder, but also the inner and outer scraping ring brushes can be quickly maintained or replaced in the inner cylinder and the outer cylinder, thereby solving the problem that the existing multiple knocking units may require more labor and time during maintenance, affecting the maintenance or replacement efficiency of the knocking units, and saving time and labor, greatly improving the screening efficiency of the drum screen for expanded clay sand, realizing efficient screening of expanded clay sand, so as to solve the above-mentioned deficiencies in the technology.

[0005] In order to achieve the above object, the utility model provides the following technical solution: a drum screen, comprising:

[0006] A material discharge rack is provided with two symmetrically distributed material discharge seats, and an inner cylinder and an outer cylinder are installed between the two material discharge seats. A driving motor for driving the material discharge seats to rotate is fixed on one side of the material discharge rack; and one of the material discharge seats is slidably connected to the material discharge rack, and one of the material discharge seats is plugged and rotated with the inner cylinder and the outer cylinder to avoid mutual interference, thereby facilitating the screening of expanded clay sand.

[0007] The screw connection assembly is used to disassemble and assemble the unloading seat along the unloading rack;

[0008] A scraping assembly is used to clean between the inner cylinder and the outer cylinder, the scraping assembly comprises inner and outer scraping ring brushes installed between the inner cylinder and the outer cylinder and an installation box installed on one side of the unloading seat, a movable groove is opened at the top of the installation box, a stabilizing assembly connecting it with the inner and outer scraping ring brushes is provided in the movable groove, a driving assembly for driving the stabilizing assembly to move is provided in the scraping assembly, and a box door for closing the movable groove is hinged at the top of the installation box; through the setting of the inner and outer scraping ring brushes, the inner walls of the inner and outer scraping ring brushes are in contact with the outer wall of the inner cylinder, and at the same time, the outer walls of the inner and outer scraping ring brushes are in contact with the inner wall of the outer cylinder, so as to scrape and clean the bores of the inner cylinder and the outer cylinder to avoid blockage and improve the screening efficiency of expanded clay sand.

[0009] Preferably, the stabilizing component includes a guide cavity opened on the bottom wall of the inner wall of the movable groove and a connecting plate fixed on the inner and outer scraper ring brushes, a guide block is installed on one side of the connecting plate, and the guide block is slidably connected to the guide cavity.

[0010] Preferably, the driving assembly includes a threaded rod rotatably installed in a movable groove and a movable block fixed at the top of the guide block, the movable block is located in the movable groove and sleeved on the outside of the threaded rod, a motor is fixed to the inner side wall of the movable groove, and one end of the motor is fixed to the threaded rod; and an internal thread is provided in the movable block, which is screwed together with the external external thread on the threaded rod, which is conducive to the movement of the movable block.

[0011] Preferably, a limiting slider is fixed to one side of the moving block, a sliding groove corresponding to the limiting slider is provided in the moving groove, and the sliding groove is slidably connected to the limiting slider.

[0012] Preferably, the screw connection assembly includes screw holes opened on one side of the material discharge seat and the material discharge rack, and bolts are screwed into the screw holes.

[0013] Preferably, a positioning and disassembly assembly is provided on the guide block, and the positioning and disassembly assembly is used to disassemble the connecting plate. The positioning and disassembly assembly includes a positioning groove opened on one side of the guide block for the connecting plate to be inserted. The guide block and the connecting plate are both provided with a threaded groove, and the threaded groove is connected to the positioning groove, and a threaded column is screwed in the threaded groove.

[0014] Preferably, a lifting rod is also fixed to the top of the connecting plate, and a rod groove communicating with the interior of the positioning groove is opened on one side of the guide block, and the rod groove and the lifting rod are clamped and fixed; through the setting of the lifting rod, when the lifting rod is inserted into the rod groove and a small part is exposed to the outside, it is used to remind the user that the connecting plate is stably in contact with the positioning groove at this time, reducing the difficulty and workload of maintenance.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] 1. Through the setting of the scraping assembly, not only the inner and outer scraping ring brushes can scrape against the inner and outer cylinders, but also the inner and outer scraping ring brushes can be quickly maintained or replaced in the inner and outer cylinders, thereby solving the problem that the maintenance of the existing multiple knocking units may require more labor and time, affecting the maintenance or replacement efficiency of the knocking units, and saving time and labor, greatly improving the screening efficiency of the drum screen for ceramsite sand, and realizing efficient screening of ceramsite sand;

[0017] 2. Through the setting of the positioning and disassembly components, the inner and outer scraper ring brushes can be positioned and installed, thereby ensuring that the inner and outer scraper ring brushes are firmly maintained in the required position, reducing the difficulty and workload of maintenance, and preventing the blockage of the cylinder holes between the inner cylinder and the outer cylinder, which is convenient for the screening of expanded clay sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the utility model when the inner and outer scraper ring brushes are installed with the inner cylinder;

[0021] Figure 3 It is a partial cross-sectional view of the installation box of the utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the utility model when the connecting plate and the guide block are separated;

[0023] Figure 5 For this utility model Figure 4 Enlarged view of point A in .

[0024] Description of reference numerals:

[0025] 1. Unloading rack; 11. Driving motor; 12. Unloading seat; 13. Inner cylinder; 14. Outer cylinder; 2. Screw assembly; 21. Bolt; 22. Screw hole; 3. Scraping assembly; 31. Installation box; 32. Inner and outer scraper brushes; 33. Box door; 34. Connecting plate; 35. Moving groove; 36. Guide block; 4. Driving assembly; 41. Moving block; 42. Threaded rod; 43. Motor; 44. Limiting slider; 5. Positioning and disassembling assembly; 51. Positioning groove; 52. Lifting rod; 53. Rod groove; 54. Threaded column; 55. Threaded groove. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1 A drum screen is shown, comprising:

[0028] A material unloading rack 1 is provided with two symmetrically distributed material unloading seats 12, and an inner cylinder 13 and an outer cylinder 14 are installed between the two material unloading seats 12. A driving motor 11 for driving the material unloading seat 12 to rotate is fixed on one side of the material unloading rack 1; the structures and principles of the driving motor 11 and the material unloading seat 12 are both prior arts, and specific reference is made to the comparative document (publication number CN211802224U, and the patent name is a percussion-type double-layer drum screen for expanded clay sand production), which will not be repeated here.

[0029] As can be seen from the above, when in use, the expanded clay sand that needs to be screened is first poured into the discharge seat 12, and then the discharge seat 12 guides the expanded clay sand inside it into the inner cylinder 13. At this time, after the material is added, the discharge seat 12 is closed, and the driving motor 11 drives the other discharge seat 12 to rotate, and the rotation of the other discharge seat 12 drives the inner cylinder 13 and the outer cylinder 14 to rotate synchronously, and the inner cylinder 13 and the outer cylinder 14 rotate along one side of the discharge seat 12, thereby screening the expanded clay sand inside the inner cylinder 13, and the screened expanded clay sand is discharged outward by the discharge rack 1.

[0030] refer to Figure 1-Figure 4 As shown, the screw assembly 2 is used to disassemble and assemble the material discharging seat 12 along the material discharging rack 1; the screw assembly 2 includes a screw hole 22 opened on one side of the material discharging seat 12 and the material discharging rack 1, and a bolt 21 is screwed in the screw hole 22;

[0031] The scraping assembly 3 is used to clean between the inner cylinder 13 and the outer cylinder 14. The scraping assembly 3 includes inner and outer scraping ring brushes 32 installed between the inner cylinder 13 and the outer cylinder 14 and an installation box 31 installed on one side of the unloading seat 12. A movable groove 35 is provided at the top of the installation box 31. A stabilizing assembly connecting the movable groove 35 with the inner and outer scraping ring brushes 32 is provided in the movable groove 35. A driving assembly 4 for driving the stabilizing assembly to move is provided in the scraping assembly 3. A box door 33 for closing the movable groove 35 is hinged at the top of the installation box 31. The stabilizing assembly includes a guide cavity provided on the inner and bottom walls of the movable groove 35 and a connecting plate 34 fixed on the inner and outer scraping ring brushes 32. A guide block 36 is installed on one side of the connecting plate 34, and the guide block 36 is slidably connected to the guide cavity.

[0032] The driving assembly 4 includes a threaded rod 42 rotatably installed in the moving groove 35 and a moving block 41 fixed on the top of the guide block 36. The moving block 41 is located in the moving groove 35 and is sleeved on the outside of the threaded rod 42. A motor 43 is fixed to the inner side wall of the moving groove 35, and one end of the motor 43 is fixed to the threaded rod 42; a limiting slider 44 is also fixed to one side of the moving block 41, and a sliding groove corresponding to the limiting slider 44 is opened in the moving groove 35, and the sliding groove and the limiting slider 44 are slidably connected.

[0033] Through the above technical solution:

[0034] During the rotation and screening process of the inner cylinder 13 and the outer cylinder 14, the motor 43 drives the threaded rod 42 to rotate in the moving groove 35, and then the internal thread inside the moving block 41 is screwed with the external thread outside the threaded rod 42, and the rotation direction of the moving block 41 is limited by the limit slider 44. At this time, the threaded rod 42 rotates to drive the moving block 41 to move along its outside, and pushes the limit slider 44 to move along the slide groove, and the moving block 41 moves to push the guide block 36 to slide synchronously along the guide cavity, and then the guide block 36 pushes the connecting plate 34 and the inner and outer scraper ring brushes 32 to move, and then the inner and outer scraper ring brushes 32 move and scrape between the inner cylinder 13 and the outer cylinder 14, and clean the inner cylinder 13 and the outer cylinder 14 holes, so as to avoid the inner cylinder 13 and the outer cylinder 14 holes being blocked by ceramsite sand, which is convenient for the screening of ceramsite sand;

[0035] At the same time, when the inner and outer scraper ring brushes 32 need to be replaced due to long-term use, the bolt 21 is rotated along the screw hole 22 to make the bolt 21 and the screw hole 22 screwed in and out, and the limit between one of the discharge seats 12 and the discharge frame 1 is lost, and then one of the discharge seats 12 is pulled to slide along the discharge frame 1. At this time, one of the discharge seats 12 is disconnected from the inner cylinder 13 and the outer cylinder 14, and the installation box 31 is located between the outer cylinder 14 and the inner cylinder 13 and taken out, and the installation box 31 moves to drive the inner and outer scraper ring brushes 32 to slide, exposing the inner and outer scraper ring brushes 32 out of the field of vision, and then the inner and outer scraper ring brushes 32 can be disassembled and replaced, thereby improving the maintenance efficiency of the inner and outer scraper ring brushes 32, thereby solving the problem that the existing multiple knocking units may require more labor and time during maintenance, affecting the maintenance or replacement efficiency of the knocking units, and saving time and effort, thereby improving the screening efficiency of the drum screen for expanded clay sand.

[0036] In addition, refer to Figure 3-Figure 5As shown, a positioning and disassembly assembly 5 is provided on the guide block 36, and the positioning and disassembly assembly 5 is used to disassemble the connecting plate 34. The positioning and disassembly assembly 5 includes a positioning groove 51 opened on one side of the guide block 36 for the connecting plate 34 to be inserted. A threaded groove 55 is opened on both the guide block 36 and the connecting plate 34, and the threaded groove 55 is connected to the positioning groove 51, and a threaded column 54 is screwed in the threaded groove 55; a lifting rod 52 is also fixed to the top of the connecting plate 34, and a rod groove 53 connected to the inside of the positioning groove 51 is opened on one side of the guide block 36, and the rod groove 53 is clamped and fixed to the lifting rod 52.

[0037] Through the above technical solution:

[0038] When the inner and outer scraper ring brushes 32 are pulled and exposed, the threaded column 54 is rotated along the threaded groove 55 by rotating the threaded column 54, and then the threaded column 54 and the threaded groove 55 are screwed together and disengaged. At this time, the connecting plate 34 loses its limiting effect in the positioning groove 51, and the connecting plate 34 is taken out from the positioning groove 51, so that the inner and outer scraper ring brushes 32 can be disassembled and replaced, and the new inner and outer scraper ring brushes 32 can be installed at the same time. It can be installed without waiting, which can reduce the replacement time of the inner and outer scraper ring brushes 32, and the connecting plate 34 is inserted into the positioning groove 51 to guide the movement of the connecting plate 34, enhance the stability of the connecting plate 34, and the movement of the connecting plate 34 pushes The movable lifting rod 52 is inserted into the rod groove 53, and the lifting rod 52 slides along the rod groove 53. When the lifting rod 52 is partially exposed to the outside of the guide block 36, the connecting plate 34 is in contact with the positioning groove 51 and cannot move, and then the threaded column 54 is screwed back into the threaded groove 55 to maintain a firm connection between the inner and outer scraper ring brushes 32 and the guide block 36, so that the inner and outer scraper ring brushes 32 can be positioned and installed, ensuring that the inner and outer scraper ring brushes 32 are firmly maintained in the required position, reducing the difficulty and workload of maintenance, and preventing the cylinder hole between the inner cylinder 13 and the outer cylinder 14 from being blocked, which is convenient for screening of expanded clay sand.

[0039] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A drum screen, characterized in that: include: A material unloading rack (1), wherein two symmetrically distributed material unloading seats (12) are mounted on the material unloading rack (1), and an inner cylinder (13) and an outer cylinder (14) are mounted between the two material unloading seats (12); a driving motor (11) for driving the material unloading seats (12) to rotate is fixed on one side of the material unloading rack (1); The screw connection assembly (2) is used for disassembling and assembling the material discharging seat (12) along the material discharging frame (1); A scraping assembly (3) is used for cleaning between an inner cylinder (13) and an outer cylinder (14), the scraping assembly (3) comprising inner and outer scraping ring brushes (32) installed between the inner cylinder (13) and the outer cylinder (14) and a mounting box (31) installed on one side of a material discharge seat (12), a movable groove (35) is provided at the top of the mounting box (31), a stabilizing assembly connected to the movable groove (35) and the inner and outer scraping ring brushes (32) is provided in the movable groove (35), a driving assembly (4) for driving the stabilizing assembly to move is provided in the scraping assembly (3), and a box door (33) for closing the movable groove (35) is hinged at the top of the mounting box (31).

2. A drum screen according to claim 1, characterized in that: The stabilizing component comprises a guide cavity formed on the inner wall and bottom wall of the moving groove (35) and a connecting plate (34) fixed on the inner and outer scraper ring brushes (32); a guide block (36) is installed on one side of the connecting plate (34), and the guide block (36) is slidably connected to the guide cavity.

3. A drum screen according to claim 2, characterized in that: The driving assembly (4) comprises a threaded rod (42) rotatably mounted in the movable groove (35) and a movable block (41) fixed to the top of the guide block (36); the movable block (41) is located in the movable groove (35) and sleeved on the outside of the threaded rod (42); a motor (43) is fixed to the inner side wall of the movable groove (35), and one end of the motor (43) is fixed to the threaded rod (42).

4. A drum screen according to claim 3, characterized in that: A limiting slider (44) is also fixed on one side of the moving block (41), a sliding groove corresponding to the limiting slider (44) is provided in the moving groove (35), and the sliding groove is slidably connected to the limiting slider (44).

5. A drum screen according to claim 1, characterized in that: The screw connection assembly (2) comprises a screw hole (22) provided on one side of the material discharging seat (12) and the material discharging rack (1), and a bolt (21) is screwed into the screw hole (22).

6. A drum screen according to claim 2, characterized in that: The guide block (36) is provided with a positioning and disassembling assembly (5), and the positioning and disassembling assembly (5) is used to disassemble the connecting plate (34), the positioning and disassembling assembly (5) comprises a positioning groove (51) provided on one side of the guide block (36) for the connecting plate (34) to be inserted, the guide block (36) and the connecting plate (34) are both provided with a thread groove (55), and the thread groove (55) is connected to the positioning groove (51), and a thread column (54) is screwed into the thread groove (55).

7. A drum screen according to claim 6, characterized in that: A lifting rod (52) is also fixed to the top of the connecting plate (34), and a rod groove (53) communicating with the interior of the positioning groove (51) is formed on one side of the guide block (36), and the rod groove (53) and the lifting rod (52) are clamped and fixed.

Images