Roller assembly of double-layer roller screen

Abstract

The utility model discloses a roller assembly of a double-layer roller screen, and relates to the technical field of roller screens and accessories of the roller screens. The vibrating screen comprises a screen box, dustproof assemblies are installed in the front side wall and the rear side wall of the screen box and comprise a protection box installed on the outer wall of the screen box, a filter plate is connected to the side wall of the protection box in an inserted mode, a fan is installed on the front side wall of the protection box in an embedded mode, and a rolling shaft mechanism is installed in the screen box and comprises a plurality of rolling shaft bodies arranged in the screen box. The adjacent shaft rods are connected through a linkage assembly, the shaft rod at the tail end is connected with the driving assembly through the linkage assembly, the tail end of each shaft rod is further sleeved with an adjusting assembly, and each adjusting assembly comprises a sliding plate arranged on the corresponding shaft rod. Dust removal operation is carried out on the space where the linkage assemblies and the driving assemblies on the shaft ends of the rolling shaft mechanisms are located through the dustproof assemblies, the space is prevented from being affected by dust and the like, the distance between the two rolling shaft mechanisms can be adjusted through the adjusting assembly, and then the effect of adjusting the size of the space of the screen groove is achieved.

Description

Technical Field

[0001] This utility model belongs to the technical field of roller screens and their accessories, and in particular relates to a double-layer roller screen roller assembly. Background Technology

[0002] The double-layer roller screen is a high-efficiency screening device. Combining roller drive and double-layer screen structure, it is suitable for continuous grading and screening of materials of multiple particle sizes. The double-layer roller screen consists of a support frame, roller assembly, reducer and drive motor. The roller assembly is divided into two parts: the shaft and the double-layer screen cylinder. The support frame is set on both sides of the double-layer screen cylinder. The double-layer screen cylinder is connected to the support frame through the shaft. Then, with the cooperation of the reducer and drive motor, the double-layer screen cylinder is driven to rotate in the support frame to achieve the screening of materials in the double-layer screen cylinder.

[0003] Chinese patent application CN221387337U discloses a roller screen, including a screening box with a first roller rotatably connected inside. Covers are fixedly connected to the front and rear surfaces of the screening box. A belt conveyor is fixedly connected below the screening box. A cleaning module is movably connected above the first roller. The first roller includes a solid shaft, a limiting block, a limiting bracket, a regular octagonal disc, and a limiting frame. In this invention, the square limiting bracket, combined with square limiting holes, facilitates the limiting of the angle of the regular octagonal disc. The spacing between adjacent regular octagonal discs is limited by the limiting frame. During installation, it is not necessary to determine the distance between adjacent regular octagonal discs, and uniform overlapping of the regular octagonal discs can be easily achieved. This structure can also be used for discs of different shapes, facilitating disc welding.

[0004] The aforementioned roller screen has multiple rollers arranged at the bottom inner side of its screening box. Screening is performed through the gaps between these rollers. However, each roller is mounted to the screening box via a solid shaft, resulting in an inability to adjust the spacing between the rollers, i.e., the space for screening materials. Furthermore, the rollers are arranged in parallel with equal spacing, and each roller has a solid shaft at its end. These solid shafts are sequentially driven by sprockets and chains, which are alternately positioned at the front and rear ends of the same rollers. Because this device is used for screening materials, which often contain dust or small particles, these particles can easily enter the area where the chains and sprockets are located during screening, becoming stuck and causing slippage or stripping due to loose connections between the chains and sprockets. Therefore, we provide a double-layer roller screen assembly to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a double-layer roller screen roller assembly. The dustproof component removes dust from the space where the linkage component and drive component are located on the shaft end of the roller mechanism, preventing them from being affected by dust and other adverse effects. The distance between the two roller mechanisms can be adjusted by the adjustment component, thereby achieving the effect of adjusting the size of the screen groove space, thus solving the problems of the aforementioned roller screen.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a double-layer roller screen assembly, comprising a screen box; dustproof components are installed in the front and rear side walls of the screen box, the dustproof components include a protective box installed on the outer wall of the screen box, and a filter plate is inserted into the side wall of the protective box, and a fan is embedded in the front side wall of the protective box; a roller mechanism is installed inside the screen box, the roller mechanism includes multiple roller bodies disposed inside the screen box, a shaft rod is fixedly installed at the shaft end of the roller body, and adjacent shaft rods are connected by a linkage component, the last shaft rod is connected to a drive component through the linkage component, and an adjustment component is also sleeved at the end of the shaft rod, the adjustment component includes a sliding plate disposed on the shaft rod, the sliding plate is slidably connected to a groove on the screen box, and the sliding plate is also fixedly connected to the screen box by a fixing stud; a discharge plate is also installed in the middle of the screen box.

[0008] The present invention is further configured such that mounting grooves are provided on both the front and rear side walls of the screen box, and two dustproof components are provided in total, with the two dustproof components respectively located on the front and rear sides of the screen box, and the protective box is fixedly installed in the mounting grooves.

[0009] The present invention is further configured such that a window for gas exchange is provided on the left side wall of the protective box, and a filter plate is inserted into the window on the left side wall of the protective box. The filter plate is composed of an activated carbon filter element and a sponge filter element. There are two sponge filter elements, and the two sponge filter elements are respectively arranged on both sides of the activated carbon filter element. Filter holes are also provided on both side walls of the filter plate.

[0010] The present invention is further provided in that the front and rear side walls of the screen box are provided with sliding grooves, and the side of the sliding grooves is provided with adjustment holes. The sliding plate is slidably disposed in the sliding grooves, and multiple adjustment holes are provided at equal intervals.

[0011] The present invention is further configured such that a fixing hole is provided on the upper side wall of the slide plate, and a fixing stud is inserted into the fixing hole. The fixing stud passes through the fixing hole and is threadedly connected to the adjustment hole. A bushing is also embedded in the center of the slide plate, and the slide plate is rotatably connected to the shaft through the bushing.

[0012] The present invention is further configured such that a sieve groove is provided on the side wall of the roller body, and the sieve grooves on adjacent roller bodies are staggered.

[0013] The present invention is further configured such that the linkage component includes a linkage wheel sleeved on the shaft, and two adjacent linkage wheels are rotatably connected by a linkage belt.

[0014] The present invention is further configured such that the driving assembly includes a fixed frame fixed on the outer wall of the screen box, and a driving motor is fixedly installed inside the fixed frame. The driving motor is connected to the rotating rod through a reducer, and the rotating rod is also connected to the adjacent shaft through a linkage assembly.

[0015] This utility model has the following beneficial effects:

[0016] This invention incorporates a dustproof component, which includes a protective box covering the outer end of the roller mechanism. A ventilation window is located on the side wall of the protective box, and a filter plate is inserted into this window. A fan is embedded in the front wall of the protective box. During use, the fan operates, drawing gas out of the protective box. External gas then re-enters the protective box through the filter plate in the window, achieving pressure balance. Simultaneously, the external gas comes into contact with the filter plate upon entering the protective box. The filter plate consists of a sponge filter element and an activated carbon filter element, with two sponge filter elements positioned on either side of the activated carbon filter element. Thus, the gas entering the protective box is purified through the sponge and activated carbon filter elements, ensuring the cleanliness of the gas environment within the protective box.

[0017] This invention utilizes an adjustment component mounted on a shaft at the end of the roller body. The component includes a sleeve fitted onto the shaft and embedded in a sliding plate. The upper side wall of the sliding plate has a fixing hole for a threaded connection with a stud. Simultaneously, an adjustment hole is provided on the side wall of the screen box corresponding to the fixing hole. The sliding plate slides within a groove in the screen box. In use, the fixing stud is pulled out by rotation, and then the roller body is pushed. The roller body then slides within the groove of the screen box via the sliding plate. After adjusting the distance between the two roller bodies, the fixing stud is aligned with the fixing hole, and the fixing stud is rotated again to lock it not only into the fixing hole but also into the adjustment hole, thus fixing the sliding plate to the screen box. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a double-layer roller screen roller assembly.

[0020] Figure 2 This is a schematic diagram of the dustproof component.

[0021] Figure 3 This is a cross-sectional view of the filter plate.

[0022] Figure 4 This is a structural disassembly diagram of the screen box and roller mechanism.

[0023] Figure 5 This is a structural disassembly diagram of the roller mechanism.

[0024] Figure 6 This is a structural disassembly diagram of the adjustment component.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1-Screen box, 101-Mounting groove, 102-Slide groove, 103-Adjusting hole, 2-Dustproof component, 201-Protective box, 202-Fan, 203-Filter plate, 203a-Filter hole, 203b-Activated carbon filter element, 203c-Sponge filter element, 3-Roller mechanism, 301-Roller body, 301a-Screen groove, 301b-Shaft, 302-Linkage component, 302a-Linkage wheel, 302b-Linkage belt, 303-Drive component, 303a-Drive motor, 303b-Reducer, 303c-Fixing frame, 304-Adjusting component, 304a-Slide plate, 304b-Fixing hole, 304c-Fixing stud, 304d-Shaft sleeve, 4-Discharge plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Example 1

[0028] Please see Figure 1-3This utility model is a double-layer roller screen roller assembly, which includes a dustproof component 2 to remove dust from the space where the linkage component 302 and the drive component 303 are located on the end of the roller mechanism shaft 3, so as to avoid adverse effects such as dust.

[0029] Specifically, the screen box 1 has mounting grooves 101 on the front and rear outer walls. The dustproof component 2 includes a protective box 201 fixed in the mounting groove 101. A fan 202 is embedded in the middle of the front side wall of the protective box 201, and a filter plate 203 is inserted into the left side wall of the protective box 201.

[0030] Furthermore, the internal gas environment of the protective box 201 is connected to the external gas environment of the protective box 201 through the filter plate 203. The filter plate 203 has filter holes 203a on both sides. The filter plate 203 is composed of activated carbon filter element 203b and sponge filter element 203c. There are two sponge filter elements 203c, which are respectively arranged on both sides of the activated carbon filter element 203b.

[0031] The operation process of this embodiment is as follows: When in use, the fan 202 works, which draws the gas out of the protective box 201, while the external gas re-enters the interior of the protective box 201 through the filter plate 203 on the window to achieve air pressure balance. At the same time, since the gas in the external environment will come into contact with the filter plate 203 when it enters the interior of the protective box 201, the filter plate 203 is composed of a sponge filter element 203c and an activated carbon filter element 203b. There are two sponge filter elements 203c, which are respectively set on both sides of the activated carbon filter element 203b. Thus, the gas entering the protective box 201 is purified by the sponge filter element 203c and the activated carbon filter element 203b, thereby ensuring the cleanliness of the gas environment inside the protective box 201. Example 2

[0032] Please see Figure 4-5 Based on embodiment 1, a roller mechanism 3 is also provided, which provides rotational power support for all roller bodies 301 through the driving component 303 under the linkage of the linkage component 302.

[0033] Specifically, the screen box 1 is equipped with a roller mechanism 3. There are two roller mechanisms 3, which are arranged in parallel with the screen box 1 in a staggered manner. A discharge plate 4 is fixedly installed on the inner wall of the screen box 1 between the two roller mechanisms 3. The roller mechanism 3 includes multiple roller bodies 301 arranged in the screen box 1. A shaft rod 301b is fixedly installed at the shaft end of the roller body 301, and a linkage component 302 is installed at the ends of two adjacent shaft rods 301b. The last shaft rod 301b is connected to the drive component 303 through the linkage component 302.

[0034] Furthermore, the roller body 301 is provided with a screen groove 301a, and the screen grooves 301a on the side walls of adjacent roller bodies 301 are staggered. The linkage component 302 includes a linkage wheel 302a sleeved on the shaft 301b, and the linkage wheels 302a are rotatably connected to each other through a linkage belt 302b. The drive component 303 includes a fixing frame 303c fixed on the outer wall of the screen box 1, and a drive motor 303a is fixedly installed in the fixing frame 303c. The drive motor 303a is connected to the rotating rod through a reducer 303b, and the rotating rod is connected to the shaft 301b on its side through the linkage component 302.

[0035] The operation process of this embodiment is as follows: When in use, after the distance between the two roller bodies 301 is adjusted by adjusting component 304, a linkage belt 302b of matching length is taken out and put on the two adjacent linkage wheels 302a. Then the drive motor 303a works. When it works, it drives the shaft 301b to rotate through reducer 303b and linkage component 302. Since the shaft 301b is fixed to the shaft end of roller body 301, it will eventually drive roller body 301 to rotate. Example 3

[0036] Please see Figure 6 Based on Embodiments 1 and 2, an adjustment component 304 is also provided. The distance between the two roller mechanisms 3 can be adjusted by adjusting the adjustment component 304, thereby achieving the effect of adjusting the size of the screen groove 301a.

[0037] Specifically, the screen box 1 has sliding grooves 102 on the front and rear side walls, and adjustment holes 103 are provided on the side of the sliding grooves 102. An adjustment component 304 is also installed on the outer end of the shaft 301b. The adjustment component 304 includes a bushing 304d sleeved on the shaft 301b, and the bushing 304d is also embedded in the slide plate 304a. The slide plate 304a is connected to the screen box 1 by fixing bolts 304c.

[0038] Furthermore, the slide plate 304a is slidably disposed in the slide groove 102, and a fixing hole 304b is also provided in the side wall of the slide plate 304a. The fixing hole 304b is disposed opposite to the adjustment hole 103. Multiple adjustment holes 103 are equally spaced. The fixing bolt 304c passes through the fixing hole 304b and is threadedly connected to the adjustment hole 103.

[0039] The operation process of this embodiment is as follows: When in use, the fixing stud 304c is pulled out by rotation, and then the roller body 301 is pushed. At this time, the roller body 301 slides in the slide groove 102 of the screen box 1 through the sliding plate 304a. After adjusting the distance between the two roller bodies 301, the fixing stud 304c is aligned with the fixing hole 304b, and the fixing stud 304c is rotated again so that the fixing stud 304c is not only locked into the fixing hole 304b but also locked into the adjusting hole 103, thereby achieving the purpose of fixing the sliding plate 304a to the screen box 1.

[0040] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A double-deck roller screen roller assembly comprising a screen box (1); characterized in that: Dustproof components (2) are installed in the front and rear side walls of the sieve box (1). The dustproof components (2) include a protective box (201) installed on the outer wall of the sieve box (1), and a filter plate (203) is inserted into the side wall of the protective box (201). A fan (202) is embedded in the front side wall of the protective box (201). A roller mechanism (3) is installed inside the sieve box (1). The roller mechanism (3) includes multiple roller bodies (301) arranged inside the sieve box (1). A shaft rod (301b) is fixedly installed at the shaft end of the roller body (301), and adjacent shaft rods (301b) are connected to each other. The components are connected by a linkage assembly (302), and the last shaft (301b) is connected to the drive assembly (303) through the linkage assembly (302). An adjustment assembly (304) is also sleeved on the end of the shaft (301b). The adjustment assembly (304) includes a slide plate (304a) set on the shaft (301b). The slide plate (304a) is slidably connected to the slide groove (102) on the screen box (1). The slide plate (304a) is also fixedly connected to the screen box (1) through a fixing stud (304c). A discharge plate (4) is also installed in the middle of the screen box (1).

2. A double-deck roller screen roller assembly as claimed in claim 1, wherein, The screen box (1) has mounting slots (101) on both the front and rear side walls. There are two dustproof components (2). The two dustproof components (2) are respectively set on the front and rear sides of the screen box (1). The protective box (201) is fixedly installed in the mounting slot (101).

3. A double-deck roller screen roller assembly as defined in claim 1 wherein, The protective box (201) has a window for gas exchange on its left side wall, and the filter plate (203) is inserted into the window on the left side wall of the protective box (201). The filter plate (203) is composed of an activated carbon filter element (203b) and a sponge filter element (203c). There are two sponge filter elements (203c), and the two sponge filter elements (203c) are respectively located on both sides of the activated carbon filter element (203b). Filter holes (203a) are also provided on both sides of the filter plate (203).

4. The double-layer roller screen assembly according to claim 1, characterized in that, The screen box (1) is provided with sliding grooves (102) on the front and rear side walls, and adjustment holes (103) are provided on the side of the sliding grooves (102). The sliding plate (304a) is slidably disposed in the sliding grooves (102), and multiple adjustment holes (103) are provided at equal intervals.

5. A double-deck roller screen roller assembly as claimed in claim 4, wherein, A fixing hole (304b) is provided on the upper side wall of the slide plate (304a), and a fixing stud (304c) is inserted into the fixing hole (304b). The fixing stud (304c) passes through the fixing hole (304b) and is threadedly connected to the adjusting hole (103). A bushing (304d) is also embedded in the center of the slide plate (304a), and the slide plate (304a) is rotatably connected to the shaft (301b) through the bushing (304d).

6. The double-layer roller screen roller assembly according to claim 1, characterized in that, The roller body (301) has a sieve groove (301a) on its side wall, and the sieve grooves (301a) on adjacent roller bodies (301) are staggered.

7. A dual layer sprocket assembly for a sprocket screen according to claim 1, wherein, The linkage assembly (302) includes a linkage wheel (302a) sleeved on a shaft (301b), and two adjacent linkage wheels (302a) are rotatably connected by a linkage belt (302b).

8. A double-deck roller screen roller assembly according to claim 7, wherein, The drive assembly (303) includes a fixed frame (303c) fixed on the outer wall of the screen box (1), and a drive motor (303a) is fixedly installed inside the fixed frame (303c). The drive motor (303a) is connected to the rotating rod through a reducer (303b), and the rotating rod is also connected to the adjacent shaft (301b) through a linkage assembly (302).

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