Modular quick-change screen deck

Abstract

The utility model relates to a kind of modularization quick replacement screen frame, including screen frame main body and four screen mesh plates, the screen mesh plate is first through plug-in assembly and screen frame main body to realize quick plug-in positioning, then through fixed component and screen frame main body form detachable rigid connection, to constitute the modularization screening unit of individually replaceable. The device is through the composite structure of "inserting rod-groove" initial positioning and "spring-sliding block-clamping block" self-locking, realizes the real modularization of screen mesh plate, bolt quick disassembly, can be completed in 1 minute Single screen mesh replacement, compared with traditional bolt pressing plate mode, shorten downtime more than 80%, while spring pre-tightening force makes clamping block more and more tight, ensure reliable connection under high vibration condition, with high stiffness, high reliability and low maintenance amount, significantly improve the continuous operation rate and production efficiency of screening system.

Description

Technical Field

[0001] This utility model relates to the technical field of ore screening devices, specifically to a modular quick-change screen frame. Background Technology

[0002] As the core supporting component of industrial screening equipment (such as vibrating screens, circular vibrating screens, linear screens, etc.), the screen frame is mainly used to support the screen mesh and transmit the excitation force to achieve material classification and screening. Its structural performance directly affects the screening efficiency and equipment operation stability, and it is widely used in mining, metallurgy, building materials, chemical and food industries.

[0003] Currently, traditional screening equipment generally uses an integral steel structure screen frame, with the screen mesh fixed by bolts and pressure plates. While this structure has the advantages of simple manufacturing and low cost, it has significant drawbacks in actual operation: due to the lack of modular design in the integral structure, when the screen mesh needs to be replaced due to wear, a large number of bolts, pressure plates, and other connecting parts must be disassembled one by one. The maintenance process is cumbersome, and a single replacement usually takes more than 4 hours, resulting in significantly extended equipment downtime and seriously affecting production continuity. For example, in a certain mine application, screen frame maintenance caused a daily output decrease of approximately 2,000 tons, resulting in significant economic losses. Therefore, traditional screen frames can no longer meet the demands of modern industry for efficient and continuous production in terms of ease of maintenance and operational efficiency. Utility Model Content

[0004] To address the above problems, this utility model provides a modular quick-change screen frame.

[0005] The specific technical solution of this utility model is as follows: A modular quick-change screen frame includes a screen frame body and four screen plates. The screen plates are first quickly inserted and positioned into the screen frame body through an insertion component, and then formed a detachable rigid connection with the screen frame body through a fixing component, thereby constituting a modular screening unit that can be replaced individually.

[0006] Furthermore, preferably, the screen frame body has a slurry outlet on one end face, and its four sides are integrally formed into a U-shaped frame. Slots are symmetrically opened on both sides of the same U-shaped frame, and the same screen plate is movably inserted into any two opposite slots; several screen grids are arranged on the surface of the screen plate.

[0007] Furthermore, preferably, the insertion assembly includes a vertical plate fixed to one end of the screen plate, and L-shaped insertion plates matching the contour of the slot are vertically connected to both ends of the vertical plate.

[0008] Furthermore, preferably, the L-shaped plug-in plate has a through groove inside; the bottom of the slot is fixed with a plug rod that matches the through groove; when the L-shaped plug-in plate is inserted into the slot, the plug rod is inserted into the through groove.

[0009] Furthermore, preferably, a handle is provided on the outer side of the vertical plate away from the L-shaped plug plate.

[0010] Further, preferably, the fixing component is disposed between the free end of the U-shaped frame and the screen plate. The fixing component includes a U-shaped fixing seat, a movable connecting plate, and a U-shaped mounting seat. The U-shaped fixing seat is installed on the outer side of the end of the screen plate away from the vertical plate, and the U-shaped mounting seat is installed on the outer side of the crossbeam of the U-shaped frame. The movable connecting plate is removably inserted between the U-shaped mounting seat and the U-shaped fixing seat. Each of the two opposite inner walls of the U-shaped fixing seat has a recessed slot. A T-shaped groove is opened in the middle of the movable connecting plate. A movable plate is slidably installed in the T-shaped groove. One end of the movable plate is connected to a movable rod, and the other end of the movable rod extends out to the outside of the T-shaped groove. A spring is sleeved on the outer periphery of the movable rod. The two ends of the spring abut against the side of the movable plate and the inner wall of the T-shaped groove, respectively. A horizontal plate is connected to the other end of the movable plate. Connecting plates are symmetrically hinged on both sides of the horizontal plate, and a locking block is hinged to the other end of the connecting plate. In the naturally extended state of the spring, the two locking blocks just extend outward and lock into the corresponding slots.

[0011] Furthermore, preferably, the block is connected to a slider on the side away from the horizontal plate, and the side wall of the T-slot is provided with a sliding groove; the slider is slidably disposed in the sliding groove.

[0012] Furthermore, preferably, one end of the movable rod that extends out of the T-slot is also connected to a pull plate.

[0013] Furthermore, preferably, the ends of the connecting plate are hinged to the horizontal plate and the locking block respectively via hinge seats.

[0014] The beneficial effects of this utility model are as follows: This device achieves true modularity and boltless quick assembly and disassembly of the screen plate through the composite structure of "insertion rod-through groove" initial positioning and "spring-slider-locking block" self-locking. It can complete the replacement of a single screen plate within 1 minute, shortening downtime by more than 80% compared with the traditional bolt pressure plate method. At the same time, the spring preload makes the locking block tighter with vibration, ensuring reliable connection under high vibration conditions. It has high rigidity, high reliability and low maintenance, significantly improving the continuous operation rate and production efficiency of the screening system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a modular quick-change screen frame according to this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of a modular quick-change screen frame according to this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the main structure of the screen frame in this utility model; Figure 4 This is a schematic diagram of the structure of the screen plate in this utility model; Figure 5 This is a schematic diagram of the internal structure of the insertion rod in this utility model; Figure 6 This is a schematic diagram of the internal structure of the fixing component in this utility model; In the diagram: 1-Screen frame body; 101-Pulp outlet; 102-U-shaped frame; 103-Slot; 2-Screen plate; 201-Screen grid; 3-Insertion assembly; 301-Vertical plate; 302-L-shaped insertion plate; 303-Through groove; 304-Insertion rod; 305-Handle; 4-Fixing assembly; 401-U-shaped fixing seat; 402-Modible connecting plate; 403-U-shaped mounting seat; 404-Card slot; 405-T-slot; 406-Modible rod; 407-Pull plate; 408-Moving plate; 409-Spring; 410-Horizontal plate; 411-Card block; 412-Slide groove; 413-Slider; 414-Connecting plate. Detailed Implementation

[0016] To make the technical problems and solutions solved by this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0017] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] like Figure 1-3As shown, a modular quick-change screen frame includes a screen frame body 1 and four screen plates 2. The screen plates 2 are first quickly inserted and positioned into the screen frame body 1 via insertion components 3, and then formed a detachable rigid connection with the screen frame body 1 via fixing components 4, thus constituting a modular screening unit that can be replaced individually. The number of fixing components 4 can be one, two, or more sets on each connection surface, depending on the overall size of the screen frame, to ensure a stable connection between the screen plates 2 and the screen frame body 1.

[0020] The screen frame body 1 has a slurry outlet 101 on one end face, and its four sides are integrally formed into a U-shaped frame 102. The two sides of the same U-shaped frame 102 have symmetrical slots 103. The same screen plate 2 is movably inserted into any two opposite slots 103. Several screen grids 201 are arranged on the surface of the screen plate 2 to complete the slurry classification.

[0021] like Figure 4 As shown, the insertion assembly 3 includes a vertical plate 301 fixed to one end of the screen plate 2. The two ends of the vertical plate 301 are vertically connected to L-shaped insertion plates 302 that match the contour of the slot 103. The two L-shaped insertion plates 302 can be inserted into the corresponding slots 103 simultaneously to complete the initial positioning of the screen plate 2 and the U-shaped frame 102.

[0022] Furthermore, such as Figure 5 As shown, the L-shaped plug-in plate 302 has a through groove 303 inside; the bottom of the slot 102 is fixed with a plug rod 304 that matches the through groove 303; when the L-shaped plug-in plate 302 is inserted into the slot 103, the plug rod 304 is inserted into the through groove 303, forming a pin-groove fit, preventing the screen plate 2 from moving up and down and laterally, and completing the secondary precise positioning.

[0023] Furthermore, a handle 305 is provided on the outer side of the vertical plate 301 away from the L-shaped plug plate 302 to facilitate the pushing and pulling of the screen plate 2.

[0024] like Figure 6 As shown, the fixing component 4 is disposed between the free end of the U-shaped frame 102 and the screen plate 2, and is used to lock the two together. The fixing component 4 includes a U-shaped fixing seat 401, a movable connecting plate 402, and a U-shaped mounting seat 403. The U-shaped fixing seat 401 is installed on the outer side of the end of the screen plate 2 away from the vertical plate 301, and the U-shaped mounting seat 403 is installed on the outer side of the crossbeam of the U-shaped frame 102. The movable connecting plate 402 is removably inserted between the U-shaped mounting seat 403 and the U-shaped fixing seat 401, and forms a quick lock with the U-shaped fixing seat through a built-in elastic locking structure.

[0025] Specifically, a slot 404 is recessed on each of the two opposite inner walls of the U-shaped fixing seat 401; a T-slot 405 is provided in the middle of the movable connecting plate 402, and a movable plate 408 is slidably installed in the T-slot 405. One end of the movable plate 408 is connected to a movable rod 406, and the other end of the movable rod 406 passes through the T-slot 405 and is connected to a pull plate 407; a spring 409 is sleeved on the outer periphery of the movable rod 406, and the two ends of the spring 409 abut against the side of the movable plate 408 and the inner wall of the T-slot 405 respectively, providing an external thrust at all times. The other end of the movable plate 408 is connected to a horizontal plate 410. The two sides of the horizontal plate 410 are symmetrically hinged with connecting plates 414. The other end of the connecting plate 414 is hinged with a locking block 411. When the spring 409 is naturally extended, the two locking blocks 411 just extend outward and are locked into the corresponding slots 404, realizing the rigid connection between the U-shaped mounting base 403 and the U-shaped fixed base 401, thereby locking the screen plate 2 and the U-shaped frame 102 into one piece.

[0026] Furthermore, a slider 413 is connected to the side of the locking block 411 away from the horizontal plate 410. A sliding groove 412 is provided on the side wall of the T-slot 405, and the slider 413 is slidably disposed in the sliding groove 412. The slider 413 slides along the sliding groove 412 to provide directional guidance for the locking block 411, ensuring that the locking block 411 is accurately aligned with the locking groove 404, and avoiding jamming or unlocking.

[0027] Furthermore, the end of the connecting plate 414 is hinged to the horizontal plate 410 and the locking block 411 respectively via hinge seats.

[0028] Working principle: The L-shaped insertion plates 302 at both ends of the screen plate 2 are aligned with the slots 103 of the U-shaped frame 102 and pushed in. The insertion rod 304 automatically slides into the through groove 303, completing the vertical and horizontal positioning of the screen plate 2, achieving "one-insertion positioning". Then, the movable connecting plate 402 is inserted between the U-shaped mounting base 403 and the U-shaped fixed base 401. The spring 409 continuously pushes the moving plate 408 outwards, and the horizontal plate 410, through the connecting plate 414, forces the locking block 411 to move outwards along the sliding groove 412 and automatically engage with the locking slot 404, forming a mechanical self-locking mechanism. The screen plate 2, the U-shaped frame 102, and the movable connecting plate 402 are rigidly integrated. At this point, the screen plate 2 and the screen frame body 1 are installed. The entire screen frame is placed into the slurry tank. Fine-grained slurry enters the internal space composed of screen plates 2 along several screen grids 201 and is finally discharged from the slurry outlet 101. Coarse-grained slurry is intercepted outside the screen grids 201, thus achieving continuous material screening.

[0029] When replacement is needed, pull the pull plate 407, the movable rod 406 drives the moving plate 408 to compress the spring 409, and the locking block 411 disengages from the slot 404; then the movable connecting plate 402 can be pulled out, releasing the self-locking between the screen plate 2 and the U-shaped frame 102, and the damaged screen plate 2 can be pulled out. The new plate can be installed by reversing the operation. The entire process can be completed in ≤1 minute for the replacement of a single screen plate, without the need for any bolts or tools, which is convenient and quick.

[0030] The present invention has been described in detail above through specific and preferred embodiments. However, those skilled in the art should understand that the present invention is not limited to the embodiments described above. Any modifications or equivalent substitutions made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A modular quick-change screen frame, characterized in that: It includes a screen frame body (1) and four screen plates (2). The screen plates (2) are first quickly inserted and positioned with the screen frame body (1) through the insertion component (3), and then formed a detachable rigid connection with the screen frame body (1) through the fixing component (4), thereby forming a modular screening unit that can be replaced individually.

2. The modular quick-change screen frame according to claim 1, characterized in that: The screen frame body (1) has a slurry outlet (101) on one end face, and its four sides are integrally formed into a U-shaped frame (102). The two sides of the same U-shaped frame (102) have symmetrical slots (103). The same screen plate (2) is movably inserted into any two opposite slots (103); a number of screen grids (201) are arranged on the surface of the screen plate (2).

3. A modular quick-change screen frame according to claim 2, characterized in that: The insertion assembly (3) includes a vertical plate (301) fixed to one end of the screen plate (2), and the two ends of the vertical plate (301) are vertically connected to L-shaped insertion plates (302) that match the contour of the slot (103).

4. A modular quick-change screen frame according to claim 3, characterized in that: The L-shaped plug plate (302) has a through groove (303) inside its body; the bottom of the slot (103) is fixed with a plug rod (304) that matches the through groove (303); when the L-shaped plug plate (302) is inserted into the slot (103), the plug rod (304) is inserted into the through groove (303).

5. A modular quick-change screen frame according to claim 3, characterized in that: A handle (305) is provided on the outer side of the vertical plate (301) away from the L-shaped plug plate (302).

6. A modular quick-change screen frame according to any one of claims 1-5, characterized in that: The fixing component (4) is disposed between the free end of the U-shaped frame (102) and the screen plate (2). The fixing component (4) includes a U-shaped fixing seat (401), a movable connecting plate (402), and a U-shaped mounting seat (403). The U-shaped fixing seat (401) is installed on the outer side of the end of the screen plate (2) away from the vertical plate (301). The U-shaped mounting seat (403) is installed on the outer side of the crossbeam of the U-shaped frame (102). The movable connecting plate (402) is removably inserted between the U-shaped mounting seat (403) and the U-shaped fixing seat (401). A slot (404) is recessed on each of the two opposite inner walls of the U-shaped fixing seat (401). A T-shaped groove (405) is opened in the middle of the plate body of the movable connecting plate (402). A movable plate (408) is slidably installed inside the T-slot (405). One end of the movable plate (408) is connected to a movable rod (406), and the other end of the movable rod (406) extends to the outside of the T-slot (405). A spring (409) is sleeved on the outer periphery of the movable rod (406). The two ends of the spring (409) abut against the side of the movable plate (408) and the inner wall of the T-slot (405), respectively. A horizontal plate (410) is connected to the other end of the movable plate (408). A connecting plate (414) is symmetrically hinged on both sides of the horizontal plate (410). A locking block (411) is hinged to the other end of the connecting plate (414). When the spring (409) is naturally extended, the two locking blocks (411) just extend outward and are locked into the corresponding locking slots (404).

7. A modular quick-change screen frame according to claim 6, characterized in that: The side of the card block (411) away from the horizontal plate (410) is also connected to a slider (413), and the side wall of the T-slot (405) is provided with a sliding groove (412); the slider (413) is slidably disposed in the sliding groove (412).

8. A modular quick-change screen frame according to claim 6, characterized in that: The end of the movable rod (406) that extends out of the T-slot (405) is also connected to a pull plate (407).

9. A modular quick-change screen frame according to claim 6, characterized in that: The end of the connecting plate (414) is hinged to the horizontal plate (410) and the locking block (411) respectively via hinge seats.

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