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

Abstract

The invention discloses a detachable large four-vibration-source square rocking screen convenient to transport, which comprises a support frame, a screening mechanism, a vibration mechanism and a connecting assembly, and is characterized in that the vibration mechanism is fixed on the screening mechanism to provide vibration; 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 technical blank in the field of domestic large swinging screens is filled up.

Description

Technical Field

[0001] The invention 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] The square swing screen is a screening device designed in industry to meet the needs of large production capacity and high-precision screening. It is widely used in papermaking, chemical industry, mineral processing, energy and other industries. At present, domestic manufacturers mainly use small equipment in the field of square swing screens, especially wood chip screens, and their screening efficiency is limited, far from the screening efficiency required by large enterprises such as paper mills. In order to meet the needs of large production and high-precision screening of enterprises, large swing screens currently tried to be produced by domestic and foreign manufacturers are to increase the screening efficiency by increasing the screen area. However, this design increases the width of the screen box, screen frame and other assembly parts due to the expansion of the screen frame area, which makes the equipment extremely inconvenient to transport by land and sea. Even if some components can be removable and packaged, the size of the screening box is still too wide and too large, which greatly increases the difficulty and cost of transportation; and after increasing the volume of the screen box, the conventional exciter assembly method is not easy to make the exciting force evenly distributed on the screen surface, which is easy to affect the stability of the whole machine; in addition, this structural design makes the equipment maintenance extremely inconvenient. Therefore, a large-scale detachable four-vibration source square swing screen that is easy to transport came into being. Summary of the invention

[0003] In order to solve the above problems, the present invention 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 present invention adopts a split assembly structure with multiple vibration source forces to ensure its assembly stability while ensuring screening efficiency and effect. It is also convenient for land and even overseas container ocean 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, easy to install, maintain and repair.

[0004] To achieve the above-mentioned purpose, the present invention discloses a large-scale detachable four-vibration source square swing screen that is easy to transport, a large-scale detachable four-vibration source square swing 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 monomers that constitute 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 plurality of vibrators are linked.

[0005] As a large-scale detachable four-vibration source square swing screen that is easy to transport according to the present invention, the screen box includes 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 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 according to the present invention, each layer of the screen frame has a cross frame, the width of the first beams arranged at intervals in the cross frame is the same and greater than the width of the other group of second beams arranged at intervals, and oblique support rods are arranged between adjacent beams; each of the upper and lower sides of the screen frame is correspondingly provided with a third beam, both ends of the third beam are fixed to the screen frame, and the two third 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 according to the present invention, the vibration mechanism includes two vibration exciter groups that are detachably installed on the two side plates of the screen box, and a driving motor that provides power for the vibration mechanism; each of the vibration exciter groups includes two vibration exciters distributed up and down on the same side of the screen box, the two vibration exciters are connected by a coupling, the two vibration exciter groups are connected by a synchronous belt, and the driving motor is connected to one of the vibration exciter groups by a belt.

[0008] As a large-scale detachable four-vibration source square swing screen that is easy to transport, the present invention comprises: one of the exciter groups is provided with a pulley connected to a driving motor, and 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 cross beam located on the lower side of the screen box bottom plate, each group of tensioning wheels has two wheel bodies, and the tensioning wheels are movably mounted on a fixed block fixed on the third cross beam, 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 according to the present invention, a protective cover is arranged outside the exciter group, wherein a supporting shell is arranged outside the coupling, and the upper and lower ends of the supporting shell are fixed to the flange plate in the exciter group, and the side surface of the supporting 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 connecting components are 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 longitudinal beams arranged in the support frame along the length direction of the screen box are assembled structures and are connected by flanges; triangular support blocks are arranged at the intersections of the horizontal beams, vertical beams and longitudinal beams that constitute the support frame, and stabilizing plates are arranged at the four supporting feet of the support frame.

[0012] Beneficial Effects Compared with the prior art, the large-scale detachable four-vibration source square swing screen which is easy to transport described in the present invention has the following beneficial effects: First, the large-scale detachable four-vibration source square swing screen that is easy to transport described in the present invention has a screen box including at least two interconnected monomers distributed on the left and right, each of which is provided with screening components such as a screen frame and a screen mesh, and the length and width of each monomer can be set according to the needs of the enterprise; that is, the large-scale wood chip screen described in this device connects the screen boxes that originally had independent screening functions in series, and its screening efficiency is doubled. More importantly, the screen box monomers are detachably connected by bolts, and are not affected by the width of the screen box of the whole machine when the device is transported, and conventional containers can be used. It is also easy to install and maintain.

[0013] Second, the large-scale detachable four-vibration source square swing screen that is easy to transport described in the present invention is designed with multiple exciters, and the four exciters are symmetrically distributed on both sides of the screen box. The multiple excitation 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 the device ensures the synchronous excitation of the screen surface by multiple exciters, further ensuring the excitation effect. This structural design cleverly solves many problems of existing large-scale wood chip screens. 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 on the premise of improving the screening efficiency by expanding the screen surface.

[0014] Third, the large-scale detachable four-vibration source square swing screen that is easy to transport described in the present invention has one side of the screen frame in the screen box fixed to the side plate of the screen box, and the other side is provided with a support column. The support column is provided to support the screen frame to improve the strength of the screen box as a whole in the width direction, and the two screen box units are bolted together through the support column to ensure the stability of the whole machine. The oblique support rods provided in the screen frame can also support the screen to ensure the strength of the screen.

[0015] Fourth, the large-scale detachable four-vibration source square swing screen that is easy to transport described in the present invention is connected and fixed with the third crossbeam that is integrally arranged with the screen box monomer to stably assemble the screen box monomer. The arrangement of the third crossbeam described in the present invention not only strengthens and fixes the screen box monomer, but also the two third crossbeams after assembly serve as reinforcing rods of the whole machine to ensure the stability of the whole machine during operation.

[0016] Fifth, the detachable large-scale four-vibration source square swing screen of the present invention is easy to transport. The independent design of the screen box monomer is easy to assemble while being easy to transport. More importantly, the fixed connection between the frame and the side panels and the bottom panel of the screen box monomer does not increase the volume during transportation but ensures the sealing and stability of the screen box. At the same time, the upper side of the screen box side panel is provided with a folded edge to improve the stability of the screen frame side panel.

[0017] 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 beam arranged along the length direction of the screen box is a rod body fixed by a flange connection. This structural design allows the whole machine to divide the support frame into two front and rear butt-jointed frames according to different conveying methods, so as to facilitate rapid installation or complete disassembly to further reduce the space occupied by transportation. At the same time, the front and rear split structure, 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 constitutes the support frame, and stabilizing plates are provided at the four legs of the support frame. The setting of the triangular support blocks and stabilizing plates further improves the stability of the whole machine operation.

[0018] Seventh, the large-scale four-vibration source square swing screen that is easy to transport and detachable as described in the present invention 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 arranged outside the coupling for transmission between two exciters in the same exciter group. The supporting shell can avoid the influence of dust, improve the safety performance and enhance the aesthetics of the whole machine. Secondly, the supporting shell is fixed to the side plates of the screen box by bolts, which strengthens the side plates of the screen box. The supporting shell can be regarded as the vertical reinforcement ribs of the side plates of the screen box to improve the stability of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the square rocking screen according to the present invention from a first viewing angle; Figure 2 It is a schematic diagram of the side view structure of the square swing screen of the present invention; Figure 3 This is a schematic diagram of the structure of the square rocking screen according to the present invention from a second viewing angle; Figure 4 It is a schematic diagram of the structure of the swing screen in the present invention from a top view; Figure 5 It is a partial structural schematic diagram of the screen chamber monomer described in the present invention; Figure 6 It is a partial structural schematic diagram of the vibration exciter group in the present invention; 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

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides a detailed implementation method.

[0021] Example 1 The large-scale detachable four-vibration source square swing screen for easy transportation described in the present invention 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. The support frame 1 is provided with triangular support blocks at the intersection of each horizontal beam, vertical beam and longitudinal beam constituting the support frame 1, and the four legs of the support frame 1 are provided with stabilizing plates 101, and the arrangement of the triangular support blocks and the stabilizing plates 101 can improve the stability of the whole machine operation.

[0022] The screening mechanism includes a plurality of screening units, in this embodiment, two screening box units distributed on the left and right are used as an example to illustrate the screening box, a multi-layer screen 202 and a screen frame 203 located in the screening box, a feed port and a discharge port located at both ends of the screening box, and fixing parts for fixing each component in the screening mechanism. The screening box is tilted, that 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 screening box according to customer needs to divide the inside of the screening box into multiple levels of screening chambers distributed up and down, and each level of the screening chamber is provided with a discharge port corresponding to the discharge port end of the screening box, and multiple discharge ports are staggered.

[0023] The sieve box monomers are interconnected, and each sieve box monomer is provided with an independent sieve frame 203, a sieve mesh 202 and other mechanisms, wherein one side of the sieve frame 203 is fixed to the sieve box side plate 201, and the other side is supported by a support column 204, and the two sieve box monomers are fixed by bolts through the support column 204, and the two sieve box monomers are assembled into the sieve box of the machine. The upper and lower sides of each sieve frame 203 are correspondingly provided with a third crossbeam 304, and both ends of the third crossbeam 304 are fixed to the sieve frame 203, and the two third crossbeams 304 arranged opposite to each other on the sieve box are fixed by bolts. The sieve box described in the present invention is assembled by connecting the support column 204 and the third crossbeam 304 of the sieve box monomer, and the structural design of the two not only realizes the assembly of the sieve box, but also supports and fixes the sieve frame 203, while improving the strength of the sieve 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 whole 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 the bottom of the screen box.

[0024] A cross frame is arranged in the screen frame 203, and 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 arranged between two adjacent cross beams. According to different use environments and screening requirements, different types of screens 202 are fixed to the drying frame by bolts. The arrangement of the cross frame and the oblique support rod can improve the stability of the screen frame 203 and the screen 202 in the screen box.

[0025] The vibration mechanism 3 described in the present invention has two vibrator groups 301, and the two vibrator groups 301 are detachably installed in the middle of the screen box side plate 201, and 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 through a belt to drive the vibrator group 301 to work. Synchronous wheels are provided in both vibrator groups 301, and the synchronous wheels between the two vibrator groups 301 are connected 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 wheel 308. Specifically, two sets of tensioning wheels 308 are provided at the third crossbeam 304 on the lower side of the screen box bottom plate. Each set of tensioning wheels 308 has two wheel bodies, and the two sets of tensioning wheels 308 are not on the same axis, that is, the two sets of tensioning wheels 308 are staggered in the width direction of the screen box. The tensioning wheels 308 are movably mounted on a fixed block fixed on the third crossbeam 304. The two fixed blocks are respectively arranged on the third crossbeam 304 corresponding to the two screen box monomers. The tensioning wheels 308 are fixed to the fixed blocks by bolts, and the relative positions of the tensioning wheels 308 can be adjusted by loosening the bolts. The synchronous belt 309 is staggered between the two sets of tension wheels 308, that is, the synchronous belt 309 is located on the left side of one set of tension wheels 308, and the synchronous belt 309 is located on the right side of the tension wheel 308 at the other set of tension wheels 308, so as to improve the tensioning effect of the synchronous belt 309 and ensure the rotation synchronization between the two exciter groups 301. The setting of the vibration mechanism 3 described in the present invention solves the problem of poor screening effect of the existing large-scale swing screen, especially the wood chip screen. The multi-vibration source design structure is novel, the exciting force is evenly distributed, and the screening effect is guaranteed under the premise of improving the screening efficiency.

[0026] Each of the vibrator groups 301 is provided with a protective cover 302 outside, and the coupling 305 is provided with a support shell 303 outside. 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 the 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 the vertical reinforcement rib of the screen box side plate 201 to improve the stability of the whole machine; more importantly, for the convenience of transportation and maintenance, the multi-vibration source is 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.

[0027] Example 2 The specific structure of the large-scale detachable four-vibration source square swing screen for easy transportation described in the present invention is basically the same as the specific structure of the large-scale detachable four-vibration source square swing screen for easy transportation described in Example 1, except that the support frame 1 can also be set as an assembled structure. Specifically, the longitudinal beam arranged along the length direction of the screen box on the support frame 1 is a rod body fixed by a flange connection. This structural design allows the whole machine to divide the support frame 1 into two small frames connected front and back according to different conveying methods, so as to facilitate quick installation. Or after the support frame 11 is completely disassembled, it becomes twelve or sixteen rod bodies, further reducing the space occupied by the assembly parts of the whole machine. At the same time, the swing screen is set as a front and rear 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 beam to improve the strength of the longitudinal beam in its length direction and ensure the stability of the whole machine.

[0028] The large-scale detachable four-vibration source square swing screen proposed by the present invention, which is easy to transport, can fully meet the screening production needs of existing enterprises through the above-mentioned design combined with the corresponding size setting of customer needs, and the stability, screening efficiency and effect can meet customer requirements, making up for the industry gap of no such large-scale swing screen 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 202, and an exciter group 301. While meeting the stability of the whole machine, it is suitable for long-distance transportation, especially conventional container transportation for export abroad. More importantly, the assembled structure and the multi-vibration source linkage working mode and the setting of the exciter group 301 proposed by the large-scale detachable four-vibration source square swing screen easy to transport described in the patent of the present invention have not been designed and proposed by any enterprise. The successful development of this machine has subverted the traditional idea of ​​increasing efficiency and machine in the screening industry, which is indeed a major innovation in the industry.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification 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 still fall 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 vibration mechanism (3) and a connecting assembly (4), wherein the screening mechanism is mounted on the support frame (1) via the connecting assembly (4), the vibration mechanism (3) is fixed on the screening mechanism to provide vibration, and the screening mechanism comprises a screening box, a multi-layer screen (202) located in the screening box, a screen frame (203), a feed port and a discharge port respectively located at two ends of the screening box, and fixing parts for fixing various components in the screening mechanism; Features: The screen box is an assembled structure, and the multiple screen box units that make up the screen box are detachably mounted and fixed to each other; the vibration mechanism (3) comprises a drive motor (307) and multiple vibrators symmetrically distributed on both sides of the screening mechanism, and the multiple vibrators are linked to each other.

2. A large-scale 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 supporting column (204), and the two screen box monomers are fixed by bolts via the supporting column (204).

3. A large-scale 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 another group of second cross beams arranged at intervals, and oblique support rods are arranged between adjacent cross beams; each of the screen frames (203) is correspondingly provided with a third cross beam (304) on the upper and lower sides, both ends of the third cross beam (304) are fixed to the screen frame (203), and two third cross beams (304) arranged opposite to each other on the screen box are fixed by bolts.

4. A large-scale detachable four-vibration source square swing screen that is easy to transport as claimed in claim 3, characterized in that: The vibration mechanism (3) comprises two vibration exciter 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 vibration exciter groups (301) comprises two vibration exciters located on the same side of the screen box and distributed up and down, the two vibration exciters are connected via a coupling (305), the two vibration exciter groups (301) are connected via a synchronous belt (309), and the drive motor (307) is connected to one of the vibration exciter groups (301) via a belt.

5. A large-scale detachable four-vibration source square swing screen that is easy to transport as claimed in claim 4, characterized in that: A pulley (306) connected to a driving motor (307) is provided on one of the vibration exciter groups (301), and synchronous wheels used in conjunction with a synchronous belt (309) are provided in both of the vibration exciter groups (301); two sets of tension wheels (308) are provided at a third crossbeam (304) located on the lower side of the screen box bottom plate, each set of tension wheels (308) having two wheel bodies, the tension wheels (308) being 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 tension wheels (308).

6. A large-scale 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 arranged outside the vibration exciter group (301), wherein a support shell (303) is arranged outside the coupling (305), the upper and lower ends of the support shell (303) are fixed to the flange plate inside the vibration 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-scale detachable four-vibration source square swing screen that is easy to transport as claimed in claim 6, characterized in that: The connection 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 connection assembly (4).

8. A detachable large-scale 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 arranged at the intersections of the transverse beams, vertical beams and longitudinal beams constituting the support frame (1), and stabilizing plates (101) are arranged at the four supporting feet of the support frame (1).

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