Detachable large four-vibration-source square swinging screen convenient to transport

Abstract

The utility model discloses a detachable large square rocking sieve with four vibration sources, which is convenient to transport and comprises a support frame, a screening mechanism, a vibration mechanism and a connecting component, the screening mechanism comprises a screening compartment, a plurality of layers of screens located in the screening compartment, a feeding port and a discharging port which are located in the two ends of the screening compartment respectively, and fixing pieces used for fixing all assemblies in the screening mechanism; the screen compartment is of an assembled structure, and a plurality of screen compartment single bodies forming the screen compartment are detachably installed and fixed. The vibration mechanism comprises a driving motor and a plurality of vibration exciters symmetrically distributed on the two sides of the screening mechanism, and the multiple vibration exciters are in linkage. According to the wood chip screen, a split assembly type structure is adopted to be matched with a multi-vibration-source structure, the screening efficiency and effect are guaranteed while the assembly stability of the wood chip screen is guaranteed, ocean transportation of land and overseas containers is facilitated, the transportation problem of large screening equipment at home and abroad is solved, and the service life of the wood chip screen is prolonged. And the technical blank in the field of domestic large rocking sieves is filled.

Description

Technical Field

[0001] The utility model belongs to the technical field of screening machinery, and in particular relates to a detachable large square swing screen which is easy to transport. Background Art

[0002] Square oscillating screens are industrial screening equipment designed to meet the demands of high-capacity and high-precision screening. They are widely used in a variety of industries, including papermaking, chemicals, mineral processing, and energy. Currently, domestic manufacturers of square oscillating screens, especially wood chip screens, primarily focus on small-scale equipment. Their screening efficiency is limited, far from meeting the requirements of large-scale enterprises like paper mills. To meet the needs of large-scale enterprises with extremely high production volumes and high-precision screening, manufacturers at home and abroad have attempted to produce large oscillating screens by increasing the screen area to improve screening efficiency. However, this design increases the width of the screen chamber and other components, making the equipment extremely difficult to transport by land and sea. Even if some components can be disassembled, the screening chamber is still too wide and large, significantly increasing transportation difficulty and cost. Furthermore, the increased screen chamber volume makes it difficult to evenly distribute the excitation force across the screen surface using conventional exciter assembly methods, which can affect the stability of the entire machine. Furthermore, this structural design makes equipment maintenance extremely difficult. Consequently, a large, detachable, four-vibration-source square oscillating screen with four vibration sources for easy transportation has emerged. Utility Model Content

[0003] In order to solve the above problems, the utility model designs a large-scale detachable four-vibration source square swing screen that is easy to transport. Its simple design concept, large production capacity, high screening efficiency and easy transportation performance are enough to fill the technical gap in the field of large-scale swing screens at home and abroad. The square swing screen described in the utility model adopts a split assembly structure with multiple vibration source forces. While ensuring its assembly stability, it also ensures screening efficiency and effect, and is convenient for land and even overseas container transportation, solving the transportation difficulties of large-scale screening equipment at home and abroad. The square swing screen designed in this patent application is simple in design, beautiful and easy to install, maintain and repair.

[0004] To achieve the above-mentioned purpose, the utility model describes a large-scale detachable four-vibration source square rocking screen that is easy to transport, a large-scale detachable four-vibration source square rocking screen that is easy to transport, comprising a support frame, a screening mechanism, a vibration mechanism and a connecting assembly, wherein the screening mechanism is installed on the support frame through the connecting assembly, and the vibration mechanism is fixed on the screening mechanism to provide vibration, the screening mechanism comprises a screen box, a multi-layer screen located in the screen box, a screen frame, a feed port and a discharge port respectively located at both ends of the screen box, and fixing parts for fixing the components in the screening mechanism; the screen box is an assembled structure, and the multiple screen box units that make up the screen box are detachably installed and fixed; the vibration mechanism comprises a driving motor and a plurality of vibrators symmetrically distributed on both sides of the screening mechanism, and the multiple vibrators are linked.

[0005] As a large-scale, detachable four-vibration source square swing screen that is easy to transport, the utility model comprises two screen box monomers distributed on the left and right, which are connected to each other; one side of the screen frame in the screen box monomer is fixed to the screen box side plate, and the other side is supported by a supporting column, and the two screen box monomers are fixed by supporting column bolts.

[0006] As a large-scale, detachable four-vibration source square swing screen that is easy to transport, the utility model has a cross frame on each layer of the screen frame, the first cross beams arranged at intervals in the cross frame have the same width and are larger than the width of the second cross beams arranged at intervals in another group, and oblique support rods are arranged between adjacent cross beams; each of the upper and lower sides of the screen frame is correspondingly provided with a third cross beam, both ends of the third cross beam are fixed to the screen frame, and the two third cross beams arranged opposite to each other on the screen box are fixed with bolts.

[0007] As a large-scale, detachable four-vibration-source square rocking screen that is easy to transport, the utility model comprises two vibrator groups detachably mounted on the two side plates of the screen box, and a drive motor that provides power for the vibrator mechanism; each of the vibrator groups comprises two vibrators distributed up and down on the same side of the screen box, the two vibrators are connected by a coupling, the two vibrator groups are connected by a synchronous belt, and the drive motor is connected to one of the vibrator groups by a belt.

[0008] As a large-scale, detachable four-vibration source square swing screen that is easy to transport, the utility model comprises: one of the exciter groups is provided with a pulley connected to a driving motor; both of the exciter groups are provided with synchronous wheels used in conjunction with synchronous belts; two groups of tensioning wheels are provided at the third crossbeam on the lower side of the screen box bottom plate, each group of tensioning wheels has two wheel bodies, the tensioning wheels are movably mounted on a fixed block fixed on the third crossbeam, and the synchronous belts are staggered and passed between the two groups of tensioning wheels.

[0009] As a large-scale, detachable four-vibration source square swing screen that is easy to transport, the utility model has a protective cover outside the exciter group, wherein a support shell is provided outside the coupling, the upper and lower ends of the support shell are fixed to the flange plate in the exciter group, and the side of the support shell is fixed to the side plate of the screen box by bolts.

[0010] As a large-scale detachable four-vibration source square swing screen that is easy to transport, the utility model comprises universal joint couplings symmetrically distributed at the four end corners of the support frame, and the screening mechanism is suspended in the support frame through the connecting components.

[0011] As a large-scale, detachable four-vibration source square swing screen that is easy to transport, the utility model has a longitudinal beam arranged along the length direction of the screen box in the support frame that is an assembled structure and is connected by flanges; triangular support blocks are provided at the intersection of each horizontal beam, vertical beam and longitudinal beam that constitutes the support frame, and stabilizing plates are provided at the four supporting feet of the support frame.

[0012] Beneficial effects

[0013] Compared with the prior art, the large-scale detachable four-vibration source square swing screen of the utility model, which is easy to transport, has the following beneficial effects:

[0014] First, the large, detachable, four-vibration square swing screen described in this invention is easy to transport. Its screen compartments consist of at least two interconnected units, each housing a screen frame, screen mesh, and other screening components. The length and width of each unit can be customized to meet the needs of the enterprise. In other words, the large wood chip screen described in this device connects the previously independent screening compartments in series, exponentially increasing screening efficiency. More importantly, the compartments are detachably connected by bolts, making transport unaffected by the width of the entire screen compartment and suitable for conventional containers. This also facilitates installation and maintenance.

[0015] Second, the large-scale detachable four-vibration source square swing screen that is easy to transport described in the utility model is designed with multiple vibrators, and the four vibrators are symmetrically distributed on both sides of the screen box. The multiple vibration sources work to evenly distribute the excitation force on the screen, which perfectly solves the problem of insufficient excitation force of a single vibration source in large-scale screening devices and greatly improves the stability of the equipment. At the same time, the synchronous movement between the multiple vibration sources of this device ensures the synchronization of the excitation of the screen surface by multiple vibrators, further ensuring the excitation effect. Through this structural design, many problems of existing large-scale wood chip screens are cleverly solved. The multi-vibration source design has a novel structure and evenly distributed excitation force. It can ensure the screening effect and improve the stability of the equipment under the premise of improving the screening efficiency by expanding the screen surface.

[0016] Third, the large, detachable, four-vibration-source square swing screen described in this utility model is easy to transport. The screen frame of the screen compartment is fixed to the side panel on one side, and support columns are provided on the other side. These support columns not only support the screen frame to increase the overall width strength of the screen compartment, but also connect the two screen compartments with bolts to ensure overall stability. The oblique support rods provided within the screen frame also support the screen mesh to ensure its strength.

[0017] Fourth, the large, detachable, four-vibration-source square swing screen of the present invention, which is easy to transport, has a third crossbeam integrally connected to the screen compartment, securing the compartment and stabilizing the assembly. The third crossbeam not only strengthens and secures the compartment, but also serves as a reinforcing rod for the entire machine, ensuring its stability during operation.

[0018] Fifth, the large, detachable, four-vibration square swing screen of this utility model is easy to transport. The independent design of the screen box makes it easy to assemble while facilitating transportation. More importantly, the fixed connection between the frame, side panels, and bottom panel of the screen box ensures the sealing and stability of the screen box without increasing its volume during transportation. Folded edges are also provided on the upper sides of the screen box side panels to enhance the stability of the screen frame side panels.

[0019] Sixth, the large-scale detachable four-vibration source square swing screen that is easy to transport described in the present invention, the support frame can also be set as an assembled structure, and the longitudinal beams arranged along the length direction of the screen box are rods fixed by flange connections. This structural design allows the whole machine to divide the support frame into two front and rear butt-jointed frames according to different transportation methods, so as to facilitate quick installation or complete disassembly to further reduce the space occupied by transportation. At the same time, the front and rear split structures, after the screen box is hoisted at the four end corners of the support frame, the flange connection method in the middle of the support frame disperses the force on the longitudinal beam to improve the strength of the longitudinal beam in its length direction and ensure the stability of the whole machine. Triangular support blocks are provided at the intersection of each horizontal beam, vertical beam and longitudinal beam that make up the support frame, and stabilizing plates are provided at the four legs of the support frame. The provision of triangular support blocks and stabilizing plates further improves the stability of the whole machine operation.

[0020] Seventh, the large-scale detachable four-vibration source square swing screen that is easy to transport described in the utility model has a protective cover on the outside of each of the exciters. This structural design improves the safety performance of the whole machine. At the same time, a supporting shell is provided outside the coupling used for transmission between the two exciters in the same exciter group. The supporting shell can avoid the influence of dust, improve safety performance and enhance the aesthetics of the whole machine. Secondly, the supporting shell is fixed to the side plate of the screen box by bolts, which strengthens the side plate of the screen box. The supporting shell can be regarded as the vertical reinforcement rib of the side plate of the screen box, thereby improving the stability of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the square rocking screen of the utility model from a first perspective;

[0022] Figure 2 This is a side structural diagram of the square rocking screen of the utility model;

[0023] Figure 3 This is a schematic structural diagram of the square rocking screen in the present invention from a second perspective;

[0024] Figure 4 This is a schematic diagram of the structure of the rocking screen described in the utility model from a top view;

[0025] Figure 5 It is a partial structural diagram of the screen box monomer described in the utility model;

[0026] Figure 6 It is a partial structural diagram of the vibration exciter group in the utility model;

[0027] Markings in the figure: 1. Support frame, 101. Stabilizing plate, 2. Screen box, 201. Side plate, 202. Screen, 203. Screen frame, 204. Support column, 3. Vibration mechanism, 301. Exciter group, 302. Protective cover, 303. Support shell, 304. Third crossbeam, 305. Coupling, 306. Pulley, 307. Drive motor, 308. Tensioner, 309. Synchronous belt, 4. Connecting assembly. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. This embodiment provides a detailed implementation method based on the technical solution of the present invention.

[0029] Example 1

[0030] The large-scale detachable four-vibration source square swing screen that is easy to transport described in the utility model comprises a support frame 1, a screening mechanism, a vibration mechanism 3 and a connecting assembly 4, wherein the screening mechanism is installed in the support frame 1 through the connecting assembly 4. Specifically, the connecting assembly 4 is a universal joint coupling 305 symmetrically distributed at the four end corners of the support frame 1, and the screening mechanism is suspended in the support frame 1 through the connecting assembly 4. Triangular support blocks are provided at the intersection of each horizontal beam, vertical beam and longitudinal beam that constitutes the support frame 1, and stabilizing plates 101 are provided at the four supporting feet of the support frame 1. The arrangement of the triangular support blocks and the stabilizing plates 101 can improve the stability of the operation of the entire machine.

[0031] The screening mechanism includes a plurality of screening units. In this embodiment, two screening units are distributed on the left and right as an example to illustrate the composition of the screening box, a multi-layer screen 202 and a screen frame 203 located in the screen box, a feed port and a discharge port located at both ends of the screen box, and fixing parts for fixing the various components of the screening mechanism. The screen box is arranged at an angle, that is, it is tilted downward from the feed port end to the discharge port end. Different levels of screen frames 203 and screens 202 can be set inside the screen box according to customer needs to divide the screen box into multiple levels of screening chambers distributed vertically. Each level of the screening chamber is provided with a discharge port corresponding to the discharge port end of the screen box, and the multiple discharge ports are staggered.

[0032] The screen box units are interconnected, and each screen box unit is provided with an independent screen frame 203, screen mesh 202 and other mechanisms, wherein one side of the screen frame 203 is fixed to the screen box side plate 201, and the other side is supported by a support column 204. The two screen box units are fixed by bolts through the support columns 204, and the two screen box units are assembled into the screen box of the machine. Each of the upper and lower sides of the screen frame 203 is provided with a third crossbeam 304, and both ends of the third crossbeam 304 are fixed to the screen frame 203, and the two third crossbeams 304 arranged opposite to each other on the screen box are fixed by bolts. The screen box described in the present invention is assembled by connecting the support columns 204 and the third crossbeam 304 of the screen box units. The structural design of the two not only realizes the assembly of the screen box, but also supports and fixes the screen frame 203, while improving the strength of the screen box as a whole in its width direction. More importantly, the independent design of the screen box unit is convenient for transportation and assembly, and ensures the stability of the screen box of the entire machine; at the same time, the bottom plate and side panels in the screen box unit are integrated panels fixed on the screen frame 203, which ensures the sealing of the two sides and bottom of the screen box.

[0033] The screen frame 203 is equipped with a cross-bracing structure. The first cross beams spaced apart within the cross-bracing structure are of equal width and greater than the width of the second cross beams spaced apart. Diagonal support rods are positioned between adjacent cross beams. Different sizes of screens 202 are bolted to the drying frame according to different usage environments and screening requirements. The cross-bracing structure and diagonal support rods both enhance the stability of the screen frame 203 and screens 202 within the screening compartment.

[0034] The vibration mechanism 3 described in the present invention has two vibrator groups 301, and the two vibrator groups 301 are detachably mounted on the middle of the screen box side plate 201. Each vibrator group 301 includes two vibrators distributed up and down on the same side of the screen box. The two vibrators are connected by a coupling 305, which is a spline shaft in this embodiment, to achieve synchronous rotation of the two vibrators. A pulley 306 is provided in one of the vibrator groups, and the drive motor 307 is connected to the pulley 306 via a belt to drive the vibrator group 301 to work. Synchronous wheels are provided in both vibrator groups 301, and the synchronous wheels are connected to the two vibrator groups 301 with a synchronous belt 309. The vibration mechanism 3 can achieve synchronous rotation of the four vibrators in the vibration mechanism 3 through the design of the coupling 305 and the synchronous belt 309. The synchronous belt 309 is provided with a tensioning pulley 308. Specifically, two sets of tensioning pulleys 308 are provided on the third crossbeam 304 on the lower side of the screen chamber floor. Each set of tensioning pulleys 308 has two pulley bodies, and the two sets of tensioning pulleys 308 are not coaxial, that is, the two sets of tensioning pulleys 308 are staggered across the width of the screen chamber. The tensioning pulleys 308 are movably mounted on fixed blocks fixed to the third crossbeam 304. The two fixed blocks are respectively provided on the third crossbeam 304 corresponding to the two screen chamber units. The tensioning pulleys 308 are fixed to the fixed blocks with bolts, and the relative position of the tensioning pulleys 308 can be adjusted by loosening the bolts. The timing belt 309 is interlaced between the two sets of tensioning pulleys 308. That is, if the timing belt 309 is located on the left side of one set of tensioning pulleys 308, then the timing belt 309 is located on the right side of the tensioning pulley 308 in the other set of tensioning pulleys 308. This improves the tensioning effect of the timing belt 309 and ensures the synchronization of the rotation between the two exciter groups 301. The configuration of the vibration mechanism 3 described in the utility model solves the problem of poor screening effect of existing large-scale swing screens, especially wood chip screens. The multi-vibration source design is novel in structure and the exciting force is evenly distributed. It ensures the screening effect while improving the screening efficiency.

[0035] Each of the vibrator groups 301 is provided with a protective cover 302, and the coupling 305 is provided with a support shell 303. The upper and lower ends of the support shell 303 are fixed to the flange inside the vibrator, and the side of the support shell 303 is fixed to the screen box side plate 201 by bolts. The setting of the support shell 303 is to avoid the influence of dust generated when the machine is working, improve safety performance and enhance the aesthetics of the whole machine. Secondly, the support shell 303 is fixed to the screen box side plate 201 by bolts, which strengthens the screen box side plate 201. The support shell 303 can be regarded as a vertical reinforcement rib of the screen box side plate 201, thereby improving the stability of the whole machine. More importantly, for the convenience of transportation and maintenance, the multiple vibration sources are intentionally designed as a new assembly method of the vibrator group 301, which further reflects the design concept of convenient disassembly and assembly of this patent application.

[0036] Example 2

[0037] The specific structure of the large-scale detachable four-vibration source square rocking screen that is easy to transport described in the present invention is basically the same as the specific structure of the large-scale detachable four-vibration source square rocking screen that is easy to transport described in Example 1, except that the support frame 1 can also be set as an assembled structure. Specifically, the longitudinal beams arranged along the length direction of the screen box on the support frame 1 are rods fixed by flange connections. This structural design allows the whole machine to divide the support frame 1 into two small frames that are connected front and back according to different transportation methods, so as to facilitate quick installation. Or after the support frame 11 is completely disassembled, it becomes twelve or sixteen rods, further reducing the space occupied by the assembly parts of the whole machine. At the same time, the rocking screen is set as a front and back split structure. After the screen box is hoisted at the four end corners of the support frame 1, the flange connection method in the middle of the support frame 1 disperses the force on the longitudinal beams, so as to increase the strength of the longitudinal beams in the direction of their length and ensure the stability of the whole machine.

[0038] The large-scale detachable four-vibration source square swing screen proposed in this utility model is easy to transport. By combining the above-mentioned design with the corresponding dimensions set according to customer needs, it can fully meet the screening production needs of existing enterprises, and the stability, screening efficiency and effect can meet customer requirements, filling the industry gap of the lack of such large-scale swing screens in China. At the same time, the split design and its corresponding structural design, that is, under conventional disassembly and assembly, the whole machine can be divided into a support frame 1, an inlet and outlet, a universal joint coupling 305, a screen frame 203, a screen mesh 202, and an exciter group 301. While ensuring the stability of the whole machine, it is suitable for long-distance transportation, especially conventional container transportation for export abroad. More importantly, the assembly structure and multi-vibration source linkage working mode and the setting of the exciter group 301 proposed in the large-scale detachable four-vibration source square swing screen for easy transportation described in this utility model patent have not been designed and proposed by any other enterprise. The successful development of this machine has overturned the traditional idea of ​​increasing efficiency and machine capacity in the screening industry, which is indeed a major innovation in the industry.

[0039] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A large-scale, detachable, four-vibration-source square swing screen that is easy to transport, comprising a support frame (1), a screening mechanism, a vibrating mechanism (3), and a connecting assembly (4), wherein the screening mechanism is mounted on the support frame (1) via the connecting assembly (4), the vibrating mechanism (3) is fixed to the screening mechanism to provide vibration, and the screening mechanism comprises a screen box, a multi-layer screen (202) located in the screen box, a screen frame (203), a feed port and a discharge port located at both ends of the screen box, and fixing members for fixing the components in the screening mechanism; Its characteristics are: The screen box is an assembled structure, and the multiple screen box units that make up the screen box are detachably mounted and fixed; the vibration mechanism (3) includes a driving motor (307) and multiple vibrators symmetrically distributed on both sides of the screening mechanism, and the multiple vibrators are linked.

2. A large, detachable, four-vibration-source square swing screen that is easy to transport as claimed in claim 1, characterized in that: The screen box comprises two screen box monomers distributed on the left and right, and the two screen box monomers are connected to each other; one side of the screen frame (203) in the screen box monomer is fixed to the screen box side plate (201), and the other side is supported by a support column (204), and the two screen box monomers are fixed by bolts via the support column (204).

3. The large, detachable, four-vibration-source square swing screen that is easy to transport as claimed in claim 2, characterized in that: Each layer of the screen frame (203) has a cross frame, the width of the first cross beams arranged at intervals in the cross frame is the same and greater than the width of the second cross beams arranged at intervals in another group, and an oblique support rod is provided between adjacent cross beams; each of the screen frames (203) is provided with a third cross beam (304) on the upper and lower sides respectively, both ends of the third cross beam (304) are fixed to the screen frame (203), and the two third cross beams (304) arranged opposite to each other on the screen compartment are fixed by bolts.

4. A large, detachable, four-vibration-source square swing screen that is easy to transport as claimed in claim 3, characterized in that: The vibration mechanism (3) includes two vibrator groups (301) detachably mounted on two side plates (201) of the screen box, and a drive motor (307) for providing power to the vibration mechanism (3); each of the vibrator groups (301) includes two vibrators located on the same side of the screen box and distributed up and down, the two vibrators being connected via a coupling (305), the two vibrator groups (301) being connected via a synchronous belt (309), and the drive motor (307) being connected to one of the vibrator groups (301) via a belt.

5. The large-scale detachable four-vibration square swing screen that is easy to transport as claimed in claim 4, characterized in that: One of the vibrator groups (301) is provided with a pulley (306) connected to a drive motor (307), and both of the vibrator groups (301) are provided with synchronous wheels used in conjunction with a synchronous belt (309); two sets of tensioning wheels (308) are provided at the third crossbeam (304) located on the lower side of the screen box bottom plate, each set of tensioning wheels (308) has two wheel bodies, and the tensioning wheels (308) are movably mounted on a fixed block fixed on the third crossbeam (304), and the synchronous belt (309) is staggered and passed between the two sets of tensioning wheels (308).

6. A large, detachable, four-vibration-source square swing screen that is easy to transport as claimed in claim 5, characterized in that: A protective cover (302) is provided outside the exciter group (301), wherein a support shell (303) is provided outside the coupling (305), and the upper and lower ends of the support shell (303) are fixed to the flange plate inside the exciter group (301), and the side of the support shell (303) is fixed to the screen box side plate (201) by bolts.

7. A large, detachable, four-vibration-source square swing screen that is easy to transport as claimed in claim 6, characterized in that: The connecting assembly (4) is a universal joint coupling (305) symmetrically distributed at the four end corners of the support frame (1), and the screening mechanism is suspended in the support frame (1) through the connecting assembly (4).

8. The large, detachable, four-vibration-source square swing screen that is easy to transport as claimed in claim 7, characterized in that: The longitudinal beams arranged along the length direction of the screen box in the support frame (1) are of assembled structure and are connected by flanges; triangular support blocks are provided at the intersections of the transverse beams, vertical beams and longitudinal beams constituting the support frame (1), and stabilizing plates (101) are provided at the four supporting legs of the support frame (1).

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