A screen dismounting structure and a drum screen machine comprising the same

Abstract

The utility model discloses a screen dismounting structure and contains the drum screening machine of this structure relates to drum screening machine technical field, this screen dismounting structure includes transmission frame, the outer wall horizontal equidistance fixed connection of transmission frame has a plurality of fixed rings, a plurality of adjacent fixed ring between all circumferential equidistance is provided with a plurality of reinforcing plates, the reinforcing plate is fixedly connected with transmission frame, fixed ring, a plurality of adjacent reinforcing plates between all are provided with screen frame, be provided with the fixed mechanism for the screen frame clamping fixed on the fixed ring. The utility model discloses through fixed mechanism, can accurate clamping positioning to screen frame, to this ensures the convenience of screen frame installation, when completing one by one replacement to a plurality of screen frames, can through extruding locking, and the synchronous locking of two adjacent screen frames is carried out, to further improve the efficiency of screen frame replacement can, and effectively ensure the stability of screen main part when screening operation.

Description

Technical Field

[0001] This utility model relates to the field of drum screening machine technology, specifically a screen assembly / disassembly structure and a drum screening machine containing the structure. Background Technology

[0002] A drum screen is a device that uses a rotating, inclined cylindrical screen (with a screen mesh and other screening structures installed on the inner wall) to classify and screen materials by particle size. In the production process of microbial organic fertilizer, in order to ensure product quality, improve production efficiency and reduce costs, a drum screen is needed to screen finished granular materials for return, crushing, or different sizes of granules. After long-term use, the screen mesh will wear due to friction and impact of materials, resulting in deformation or enlargement of the screen holes, or cracking or deformation due to impact from hard objects in the material or excessive force, thus losing its screening function. It is necessary to disassemble and replace the screen mesh to ensure that the drum screen can work continuously and stably.

[0003] When existing rotary drum screens screen materials, the screens are usually made of a single piece. To ensure the stability of the equipment, a large number of fasteners (such as bolts) or partial welding are used to fix the edges of the screen. This allows the screen to resist the effects of material friction, impact, and centrifugal force. However, when disassembling and replacing the screen, not only do a large number of fasteners need to be disassembled and reassembled one by one, but the angle of the screen also needs to be adjusted in real time during installation to avoid screen misalignment. This makes the screen replacement operation cumbersome and inefficient. Based on this, a screen disassembly and assembly structure and a rotary drum screen containing this structure are provided to eliminate the drawbacks of the existing device. Utility Model Content

[0004] The purpose of this utility model is to provide a screen assembly / disassembly structure and a drum screen containing the structure, so as to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A screen assembly / disassembly structure includes a transmission frame. Multiple fixing rings are fixedly connected laterally at equal intervals on the outer wall of the transmission frame. Multiple reinforcing plates are circumferentially arranged at equal intervals between multiple adjacent fixing rings. The reinforcing plates are fixedly connected to the transmission frame and the fixing rings. A screen frame is arranged between multiple adjacent reinforcing plates. A fixing mechanism for engaging and fixing the screen frame is provided on the fixing rings. The fixing mechanism includes: Multiple sets of fixing plates are circumferentially and equidistantly arranged on a fixing ring. The multiple sets of fixing plates are interleaved with multiple reinforcing plates. Each set of fixing plates has two plates, which are symmetrically fixed to the outer wall of the fixing ring. A movable push plate is slidably connected inside each of the two fixing plates. The movable push plate is located at one end of the screen frame. A limiting groove is provided on the fixing ring for the movable push plate to slide. A mating groove that matches the outer wall of the fixing plate is provided at the junction of the screen frame and the fixing plate.

[0006] Based on the above technical solutions, this utility model also provides the following optional technical solutions: In one alternative embodiment, the fixing mechanism further includes: A locking assembly mounted on the fixed ring; The locking assembly consists of multiple fixing bolts circumferentially and equidistantly arranged on the outer wall of the fixing ring. The multiple fixing bolts are located at the ends of multiple sets of fixing plates away from the transmission frame. The multiple fixing bolts all penetrate into the interior of the fixing ring and are threadedly connected to the fixing ring. The movable push plate is equipped with a positioning component for engaging and positioning the screen frame. The fixed plate is provided with a first limiting component for limiting the sliding movement of the movable push plate; The fixing bolt is equipped with a fixing component for pressing and fixing the movable push plate.

[0007] In one alternative embodiment, the positioning component includes: Two positioning blocks are symmetrically fixedly connected to one end of the movable push plate near the screen frame. The outer wall of the two positioning blocks away from the movable push plate is hemispherical. Both positioning blocks penetrate the fixed plate into the interior of the screen frame. Both positioning blocks are slidably connected to the fixed plate.

[0008] In one alternative embodiment: the first limiting component includes: Two fixing rods are symmetrically fixed inside the fixing plate, and both fixing rods are fixedly connected to the fixing ring. The movable push plate is slidably sleeved on the outer wall of the two fixing rods. A reset component is provided on the fixed rod.

[0009] In one alternative: the reset component is a spring sleeved on the outer wall of the fixed rod, one end of the spring is in contact with the outer wall of the movable push plate, and the other end of the spring is in contact with the inner wall of the fixed ring.

[0010] In one alternative embodiment, the fixing component includes: A lifting pressure plate is set at the bottom of the fixing bolt. The lifting pressure plate is located inside the fixing ring and is slidably connected to the fixing ring. The lifting pressure plate is located between two fixing plates. A connecting push plate is fixedly connected to the end of the movable push plate near the lifting pressure plate. The outer wall of the end of the connecting push plate away from the movable push plate is inclined. A pressing surface that matches the outer wall of the connecting push plate is opened at the position where the lifting pressure plate and the connecting push plate meet. The lifting pressure plate is equipped with a second limiting component.

[0011] In one alternative embodiment, the second limiting component includes: Two guide sliders are symmetrically fixedly connected to the outer wall of the lifting pressure plate. A movable groove for the guide sliders to slide is provided at the position where the fixed ring connects with the guide sliders.

[0012] A drum screening machine includes the aforementioned screen assembly and disassembly structure, and also includes a housing. The transmission frame is located inside the housing, and a transmission rod is provided on the inner side of the transmission frame. The transmission rod is rotatably connected to the housing. Multiple sets of support rods are fixedly connected to the outer wall of the transmission rod at equal intervals along its circumference. All sets of support rods are fixedly connected to the transmission frame. A drive motor is installed at one end of the housing, and the transmission rod is driven by the drive motor.

[0013] In one alternative: the top of the outer casing has a feed inlet, one end of the outer casing has a discharge outlet, the discharge outlet is located below the drive motor, the feed inlet and the discharge outlet are located at the ports at both ends of the transmission frame, and a sorting and receiving box is provided below the transmission frame, the sorting and receiving box being slidably connected to the outer casing.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention uses a fixing mechanism to precisely engage and position the screen frame, thus ensuring convenient installation. When multiple screen frames have been replaced one by one, two adjacent screen frames can be locked simultaneously by squeezing, thereby further improving the efficiency of screen frame replacement and effectively ensuring the stability of the screen body during screening operations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the transmission frame of this utility model.

[0017] Figure 3 This is a schematic diagram of the screen frame structure of this utility model.

[0018] Figure 4This is a schematic diagram of the connection structure between the lifting pressure plate and the connecting push plate of this utility model.

[0019] Figure 5 For the present utility model Figure 2 A magnified schematic diagram of the structure at point A in the diagram.

[0020] Figure reference numerals: 1. Outer shell; 201. Fixed rod; 202. Moving push plate; 203. Lifting pressure plate; 204. Guide slider; 205. Positioning block; 206. Fixing bolt; 207. Connecting push plate; 208. Spring; 209. Fixing plate; 3. Feed inlet; 4. Sorting and receiving box; 5. Discharge outlet; 6. Drive motor; 7. Transmission rod; 8. Transmission frame; 9. Screen frame; 10. Reinforcing plate; 11. Fixing ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] In one embodiment, such as Figures 1-5 As shown, a screen assembly / disassembly structure includes a transmission frame 8. Multiple fixing rings 11 are fixedly connected laterally at equal intervals on the outer wall of the transmission frame 8. Multiple reinforcing plates 10 are circumferentially arranged at equal intervals between multiple adjacent fixing rings 11. The reinforcing plates 10 are fixedly connected to the transmission frame 8 and the fixing rings 11. A screen frame 9 is arranged between multiple adjacent reinforcing plates 10. A screen body is fixedly connected to the inner wall of the screen frame 9. Two buckle grooves are symmetrically opened on the inner wall of the screen frame 9. The fixing rings 11 are provided with a fixing mechanism for engaging and fixing the screen frame 9. The fixing mechanism includes: multiple sets of fixing plates 209 circumferentially and equidistantly arranged on the fixing ring 11, the multiple sets of fixing plates 209 being interleaved with multiple reinforcing plates 10 respectively, one set of fixing plates 209 having two, the two fixing plates 209 being symmetrically fixedly connected to the outer wall of the fixing ring 11, the interior of each of the two fixing plates 209 being slidably connected to a movable push plate 202, the movable push plate 202 being located at one end of the screen frame 9, the fixing ring 11 having a limiting groove for the movable push plate 202 to slide, and the screen frame 9 having a mating groove that matches the outer wall of the fixing plate 209 at the contact position with the fixing plate 209; It also includes a housing 1, a transmission frame 8 located inside the housing 1, a transmission rod 7 provided inside the transmission frame 8, the transmission rod 7 being rotatably connected to the housing 1, and multiple sets of support rods being fixedly connected circumferentially at equal intervals to the outer wall of the transmission rod 7, all of which are fixedly connected to the transmission frame 8. A drive motor 6 is installed at one end of the housing 1, and the transmission rod 7 is driven by the drive motor 6. A feed inlet 3 is opened at the top of the housing 1, and a discharge outlet 5 is opened at one end of the housing 1. The discharge outlet 5 is located below the drive motor 6. The feed inlet 3 and the discharge outlet 5 are located at the ports at both ends of the transmission frame 8, respectively. A sorting and receiving box 4 is provided below the transmission frame 8, and the sorting and receiving box 4 is slidably connected to the housing 1. In this embodiment, during use, the drive motor 6 is started to drive the transmission rod 7 to rotate. At this time, the transmission frame 8, driven by the transmission rod 7 through the support rod, drives multiple screen frames 9 to rotate synchronously through the reinforcing plate 10 and the fixing ring 11. At the same time, the material is poured into the inner side of the transmission frame 8 through the feed port 3, so that the material is graded and screened by the screen body. At this time, the qualified material can be classified and collected through the classification collection box 4, and the unqualified material is discharged to the outer side of one end of the outer shell 1 through the discharge port 5, thereby achieving the purpose of material classification and screening. When the screen body needs to be replaced, the locking mechanism can be released from the screen frame 9. At this time, the screen frame 9 can be pulled apart from the outer wall of the reinforcing plate 10, the fixing ring 11, and the fixing plate 209 by the pull groove. This allows the screen body to be easily disassembled. Then, the above operation is reversed to easily install and fix the new screen body, thereby further improving the efficiency of screen body replacement. In one embodiment, such as Figures 1-5 As shown, the fixing mechanism also includes a locking component disposed on the fixing ring 11; The locking assembly consists of multiple fixing bolts 206 circumferentially and equidistantly arranged on the outer wall of the fixing ring 11. The multiple fixing bolts 206 are located at the ends of multiple sets of fixing plates 209 away from the transmission frame 8. The multiple fixing bolts 206 all penetrate into the interior of the fixing ring 11 and are threadedly connected to the fixing ring 11. The movable push plate 202 is equipped with a positioning component for engaging and positioning the screen frame 9; The fixed plate 209 is provided with a first limiting component for limiting the sliding of the movable push plate 202; The fixing bolt 206 is provided with a fixing component for pressing and fixing the movable push plate 202; The fixing assembly includes: a lifting pressure plate 203 set at the bottom of the fixing bolt 206, the lifting pressure plate 203 being located inside the fixing ring 11, the lifting pressure plate 203 being slidably connected to the fixing ring 11, the lifting pressure plate 203 being located between two fixing plates 209, a connecting push plate 207 being fixedly connected to one end of the movable push plate 202 near the lifting pressure plate 203, the outer wall of the connecting push plate 207 away from the movable push plate 202 being inclined, and a pressing surface that matches the outer wall of the connecting push plate 207 being provided at the contact position between the lifting pressure plate 203 and the connecting push plate 207; A second limit component is provided on the lifting pressure plate 203; The second limiting component includes two guide sliders 204 symmetrically fixedly connected to the outer wall of the lifting pressure plate 203. A movable groove for sliding the guide sliders 204 is provided at the contact position between the fixing ring 11 and the guide sliders 204. Through the cooperation of the locking component, the fixing component and the second limiting component, the movable push plate 202 inside the two fixed plates 209 can be locked or unlocked synchronously. In one embodiment, such as Figures 2-5 As shown, the positioning component includes two positioning blocks 205 symmetrically fixedly connected to one end of the movable push plate 202 near the screen frame 9. The outer wall of the two positioning blocks 205 away from the movable push plate 202 is hemispherical. Both positioning blocks 205 penetrate through the fixed plate 209 to the inside of the screen frame 9. Both positioning blocks 205 are slidably connected to the fixed plate 209. The first limiting component includes: two fixed rods 201 symmetrically fixedly connected inside the fixed plate 209, both fixed rods 201 being fixedly connected to the fixed ring 11, a movable push plate 202 slidably sleeved on the outer wall of the two fixed rods 201, and two positioning blocks 205 located between the two fixed rods 201. A reset assembly is provided on the fixing rod 201; The reset component is a spring 208 sleeved on the outer wall of the fixed rod 201. One end of the spring 208 contacts the outer wall of the movable push plate 202, and the other end of the spring 208 contacts the inner wall of the fixed ring 11. Through the cooperation of the positioning component, the first limiting component and the reset component, the two positioning blocks 205 can be pushed to easily engage and position the screen frame 9.

[0023] The above embodiments disclose a screen assembly / disassembly structure and a drum screen containing this structure. In use, the drive motor 6 is started to drive the transmission rod 7 to rotate. At this time, the transmission frame 8, driven by the transmission rod 7 through the support rod, drives multiple screen frames 9 to rotate synchronously through the reinforcing plate 10 and the fixing ring 11. At the same time, the material is poured into the interior of the outer shell 1 through the feed inlet 3. The material is guided to the inner side of the transmission frame 8 by the guide of the inner wall of the feed inlet 3. The material can be graded and screened by the screen body on the multiple screen frames 9. The qualified material can be collected by the classification collection box 4. Then, the unqualified material is discharged to the outer side of one end of the outer shell 1 through the discharge port 5 under the guidance of the rotation of the transmission frame 8, thereby achieving the purpose of material classification and screening. When the main body of the screen needs to be replaced, the fixing bolt 206 is rotated with a tool to separate it from the lifting pressure plate 203, thereby releasing the limiting lock on the lifting pressure plate 203. After the lifting pressure plates 203 at both ends of the screen frame 9 to be replaced are released, the screen frame 9 is pulled apart from the outer wall of the transmission frame 8, reinforcing plate 10, fixing ring 11, and fixing plate 209 by the pull groove. At the same time, the positioning block 205, under the pressure of the inner wall of the screen frame 9, pushes the moving push plate 202 to slide along the outer wall of the fixing rod 201. The movable push plate 202 retracts via the movable compression spring 208. Simultaneously, the connecting push plate 207, pushed by the movable push plate 202, compresses the outer wall of the lifting pressure plate 203. At this time, the lifting pressure plate 203, through the compression surface, drives the guide slider 204 to slide along the inner wall of the movable slide groove under the compression of the connecting push plate 207. This allows for convenient disassembly of the screen body that needs to be replaced. Then, the above operation is reversed to facilitate the installation and fixing of the new screen body, thereby further improving the efficiency of screen body replacement.

[0024] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A screen dismounting structure, comprising a transmission frame (8), a plurality of fixed rings (11) are fixedly connected to the outer wall of the transmission frame (8) at equal intervals in the transverse direction, a plurality of reinforcing plates (10) are arranged at equal intervals in the circumferential direction between a plurality of adjacent fixed rings (11), the reinforcing plates (10) are fixedly connected with the transmission frame (8) and the fixed rings (11), and a screen frame (9) is arranged between a plurality of adjacent reinforcing plates (10), characterized in that, The fixing ring (11) is provided with a fixing mechanism for clamping and fixing the screen frame (9); The fixing mechanism comprises a plurality of groups of fixing clamping plates (209) circumferentially and equidistantly arranged on the fixing ring (11), the plurality of groups of fixing clamping plates (209) are respectively interlaced with the plurality of reinforcing plates (10), one group of the fixing clamping plates (209) is provided with two, the two fixing clamping plates (209) are symmetrically and fixedly connected to the outer wall of the fixing ring (11), the interiors of the two fixing clamping plates (209) are both slidably connected with a moving push plate (202), the moving push plate (202) is located at one end of the screen frame (9), the fixing ring (11) is provided with a limiting sliding groove for sliding of the moving push plate (202), and the screen frame (9) is provided with a butt joint sleeve groove at the position, where the screen frame (9) and the fixing clamping plate (209) are connected, in abutment with the outer wall of the fixing clamping plate (209).

2. The screen dismounting structure according to claim 1, wherein The fixing mechanism further comprises a locking assembly arranged on the fixing ring (11); The locking assembly is a plurality of fixing bolts (206) circumferentially and equidistantly arranged on the outer wall of the fixing ring (11), the plurality of fixing bolts (206) are respectively located at one end of the plurality of groups of fixing clamping plates (209) away from the transmission frame (8), the plurality of fixing bolts (206) all penetrate into the interior of the fixing ring (11), and the plurality of fixing bolts (206) are all in threaded connection with the fixing ring (11). The moving push plate (202) is provided with a positioning assembly for clamping and positioning the screen frame (9); The fixing clamping plate (209) is provided with a first limiting assembly for sliding and limiting the moving push plate (202). The fixing bolt (206) is provided with a fixing assembly for extruding and fixing the moving push plate (202).

3. The screen assembly of claim 2, wherein: The positioning assembly comprises two positioning clamping blocks (205) symmetrically and fixedly connected to one end of the moving push plate (202) close to the screen frame (9), the outer walls of the two positioning clamping blocks (205) away from the moving push plate (202) are both in a semispherical shape, the two positioning clamping blocks (205) both penetrate through the fixing clamping plate (209) to the interior of the screen frame (9), and the two positioning clamping blocks (205) are both in sliding connection with the fixing clamping plate (209).

4. The screen assembly of claim 2, wherein: The first limiting assembly comprises two fixed rods (201) symmetrically and fixedly connected to the interior of the fixing clamping plate (209), and the two fixed rods (201) are both in fixed connection with the fixing ring (11), and the moving push plate (202) is slidably sleeved on the outer walls of the two fixed rods (201); The fixed rod (201) is provided with a reset assembly.

5. The screen assembly of claim 4, wherein: The reset assembly is a spring (208) sleeved on the outer wall of the fixed rod (201), one end of the spring (208) is in contact with the outer wall of the moving push plate (202), and the other end of the spring (208) is in contact with the inner wall of the fixing ring (11).

6. The screen assembly of claim 2, wherein: The fixed assembly comprises a lifting pressing plate (203) arranged at the bottom end of the fixing bolt (206), the lifting pressing plate (203) is located inside the fixing ring (11), the lifting pressing plate (203) is in sliding connection with the fixing ring (11), the lifting pressing plate (203) is located between two fixing clamping plates (209), one end of the moving push plate (202) close to the lifting pressing plate (203) is fixedly connected with a connecting push plate (207), the outer wall of one end of the connecting push plate (207) away from the moving push plate (202) is in a slope shape, and a pressing surface that is matched with the outer wall of the connecting push plate (207) is formed at the position where the lifting pressing plate (203) and the connecting push plate (207) are connected. A second limiting assembly is arranged on the lifting pressing plate (203).

7. The screen assembly of claim 6, wherein: The second limiting assembly comprises two guide sliding blocks (204) fixedly connected on the outer wall of the lifting pressing plate (203) in a symmetrical mode, and a moving sliding groove for the guide sliding block (204) to slide is formed at the position where the fixing ring (11) and the guide sliding block (204) are connected.

8. A drum sifting machine comprising the screen dismounting structure according to any one of claims 1 to 7, characterized in that, Further comprising a shell (1), the transmission frame (8) is located on the inner side of the shell (1), a transmission rod (7) is arranged on the inner side of the transmission frame (8), the transmission rod (7) is in rotary connection with the shell (1), a plurality of groups of supporting rods are fixedly connected on the outer wall of the transmission rod (7) at equal intervals in the circumferential direction, the plurality of groups of supporting rods are fixedly connected with the transmission frame (8), a driving motor (6) is installed at one end of the shell (1), and the transmission rod (7) is driven by the driving motor (6).

9. A drum sifting machine according to claim 8, characterised in that, A feeding port (3) is formed at the top end of the shell (1), a discharging port (5) is formed at one end of the shell (1), the discharging port (5) is located below the driving motor (6), the feeding port (3) and the discharging port (5) are respectively located at the ports at the two ends of the transmission frame (8), and a classified material collecting box (4) is arranged below the transmission frame (8), and the classified material collecting box (4) is in sliding connection with the shell (1).

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