A vibrating screen wedge dismounting device

Abstract

The utility model relates to the technical field of screen part dismounting equipment, especially to a vibrating screen wedge block dismounting device. The vibrating screen wedge block dismounting device comprises a pressing plate connecting plate, the pressing plate connecting plate is equipped with a hooking structure, the hooking structure is used for hooking the pressing plate connecting plate on the wedge block pressing plate, a jacking device is installed on the pressing plate connecting plate, the jacking device is fixed on the pressing plate connecting plate through a base, the jacking device comprises a jacking rod, the jacking rod can be horizontally telescopic to the direction away from or close to the hooking structure, at least one side of the pressing plate connecting plate perpendicular to the telescopic direction of the jacking rod is equipped with a screen wall connecting plate, a permanent magnet adsorption device is arranged on the inner side of the screen wall connecting plate, the vibrating screen wedge block dismounting device of the utility model keeps balance and stability during the process of pushing out the wedge block, and can be directly separated from the vibrating screen, is convenient to use, simple to operate, and improves the dismounting efficiency of the wedge block.

Description

Technical Field

[0001] This utility model relates to the technical field of disassembly equipment for screen parts, and in particular to a disassembly device for a vibrating screen wedge block. Background Technology

[0002] During the application of vibrating screens, since the vibrating screen needs to vibrate at high frequency during operation, the screen mesh needs to be firmly installed inside the vibrating screen. However, in actual production, different screen mesh sizes need to be selected according to different site conditions. That is, the screen mesh needs to be replaced according to the actual production situation. Therefore, the screen mesh should not be permanently fixed to the screen wall of the vibrating screen. If it is permanently fixed, the screen mesh cannot be replaced.

[0003] Currently, the usual method is to insert a wedge between the screen and the wedge plate above the screen. The wedge plate is installed horizontally on the screen wall, so that the wedge squeezes the screen below to achieve the purpose of pressing the screen. However, when replacing the screen, the wedge is not easy to remove. Workers usually knock the wedge to loosen it and then remove it. However, this method can easily damage the screen and the screen wall. Therefore, a wedge removal device is needed to remove the wedge.

[0004] In addition, Chinese patent CN220637755U, authorized on March 22, 2024, discloses a tool for disassembling and assembling a vibrating screen wedge. The solution is to install the groove on the retaining ring onto the wedge holder to fix the tool, and then manually press the handle to control the extension of the top rod to install or remove the wedge. However, this solution requires adding a wedge holder on the screen wall of the vibrating screen that matches the groove on the retaining ring, which increases the cost. Moreover, the tool has poor versatility. In addition, during use, the tool needs to be frequently connected to the wedge holder, making the operation cumbersome and the disassembly efficiency low. Utility Model Content

[0005] The purpose of this utility model is to provide a vibrating screen wedge disassembly device that can quickly connect and separate from the vibrating screen, is simple and convenient to use, and has a high wedge disassembly efficiency, so as to solve the problems of cumbersome operation, low disassembly efficiency and poor versatility when disassembling wedges.

[0006] To achieve the above objectives, the vibrating screen wedge disassembly device of this utility model adopts the following technical solution:

[0007] The vibrating screen wedge disassembly device includes a pressure plate connecting plate, which has a hook structure for hooking the pressure plate connecting plate onto the wedge pressure plate. A pushing device is installed on the pressure plate connecting plate, which is fixed to the pressure plate connecting plate by a base. The pushing device includes a pushing rod, which can extend and retract horizontally in a direction away from or towards the hook structure. At least one side of the pressure plate connecting plate perpendicular to the extension and retraction direction of the pushing rod is provided with a screen wall connecting plate, and a permanent magnet adsorption device is provided on the inner side of the screen wall connecting plate.

[0008] Furthermore, the jacking device is equipped with a power element, which is used to drive the jacking rod to extend and retract horizontally.

[0009] Furthermore, one end of the push rod is connected to the power element, and the other end is a free end connected to a rubber push head.

[0010] Furthermore, the hook structure is an eave formed by bending the corresponding end of the pressure plate connecting plate downwards.

[0011] Furthermore, the permanent magnet adsorption device is connected to the pressure plate connecting plate via support legs, and the pushing device is located below the permanent magnet adsorption device.

[0012] Furthermore, the permanent magnet adsorption device includes a permanent magnet switch rotor, and the screen wall connecting plate can be magnetically attracted to the screen wall by rotating the handle of the permanent magnet switch rotor.

[0013] Furthermore, the permanent magnet adsorption device is also equipped with a limiting component, which is a contact lock structure. The handle of the permanent magnet switch rotor can be rotated to a position where it contacts and is locked to the limiting component.

[0014] Furthermore, the connecting plate is provided on both sides of the connecting plate perpendicular to the extension and retraction direction of the push rod.

[0015] Furthermore, a window is provided on the leg near the push rod, and the push rod extends out from the window.

[0016] Furthermore, the power element is an electric cylinder.

[0017] Beneficial Effects: The vibrating screen wedge disassembly device of this utility model is a pioneering invention. By setting a hooking structure on the pressure plate connecting plate, the pressure plate connecting plate can be hooked to the wedge pressure plate. During the process of the push rod pushing out the wedge, the hooking structure can apply a counter-clamping force to the wedge pressure plate, so that the push rod can push out the wedge smoothly. At the same time, the permanent magnet adsorption device causes the screen wall connecting plate to generate a magnetic attraction force, realizing a firm magnetic adsorption between the screen wall connecting plate and the vibrating screen wall, so that the device can maintain balance and stability during the process of pushing out the wedge.

[0018] After the wedge is disassembled, the adsorption of the screen wall connecting plate on the vibrating screen wall is released, and the device can be directly separated from the vibrating screen. It is convenient to use, simple to operate, and improves the disassembly efficiency of the wedge. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the vibrating screen wedge block disassembly device of this utility model;

[0020] Figure 2 This is a schematic diagram of the pushing device in one embodiment of the vibrating screen wedge block dismantling device of this utility model;

[0021] Figure 3 This is a schematic diagram of the permanent magnet adsorption device of one embodiment of the vibrating screen wedge block disassembly device of this utility model.

[0022] Figure 4 This is a schematic diagram of the magnetic field distribution of the permanent magnet adsorption device in one embodiment of the vibrating screen wedge block disassembly device of this utility model.

[0023] Figure 5 This is a schematic diagram showing the position and structure of an embodiment of the vibrating screen wedge block disassembly device of this utility model during use;

[0024] Figure 6 This is a schematic diagram of the overall structure of another embodiment of the vibrating screen wedge block disassembly device of this utility model;

[0025] Figure 7 This is a schematic diagram of the limiting member in another embodiment of the vibrating screen wedge block disassembly device of this utility model;

[0026] Figure 8 This is a schematic diagram of the connection structure between the permanent magnet switch rotor and the crossbeam in another embodiment of the vibrating screen wedge block disassembly device of this utility model.

[0027] In the diagram: 1. Wedge plate; 2. Plate connecting plate; 3. Pushing device; 4. Base; 5. Power element; 6. Push rod; 7. Rubber push head; 8. Support leg; 9. Window; 10. Permanent magnet adsorption device; 11. Screen wall connecting plate; 12. Outer shell; 13. Mounting port; 14. Wedge; 15. Hook structure; 16. Permanent magnet switch rotor; 17. Limiting component; 18. Crossbeam; 19. Handle; 20. Center hole; 21. Sheet magnet; 22. Limiting hole; 23. Limiting post; 24. Spring fixing plate; 25. Spring; 26. Adjusting plate; 27. Connecting shaft; 28. Countersunk hole; 29. ​​One-way bearing; 30. Screen. Detailed Implementation

[0028] The features and performance of this utility model will be further described in detail below with reference to the embodiments.

[0029] Implementation method of the vibrating screen wedge block disassembly device of this utility model:

[0030] In existing technologies, wedges are typically installed between the screen mesh and the screen wall of a vibrating screen. These wedges clamp the screen mesh, preventing it from loosening during high-frequency vibration. However, in actual production, the screen mesh needs to be replaced to meet production requirements. Because the wedges are in close contact with the screen mesh and screen wall, disassembling them is difficult. Using tools requires adding a wedge holder to the screen wall that matches the groove on the retaining ring, increasing costs. Furthermore, the tools have poor versatility, and frequent connection between the tools and the wedge holder is cumbersome, resulting in low disassembly efficiency. To address these problems, this invention proposes a vibrating screen wedge disassembly device. When disassembling the wedge 14, it can quickly connect, position, and separate from the vibrating screen, simplifying the operation process and ensuring the stability of the device itself and the stable process of pushing the wedge 14 out, thus achieving rapid disassembly of the wedge 14.

[0031] See Figures 1 to 4 As a basic embodiment of this utility model, the vibrating screen wedge disassembly device of this utility model includes a pressure plate connecting plate 2. The pressure plate connecting plate 2 is provided with a hooking structure 15, which is used to hook the pressure plate connecting plate 2 onto the wedge pressure plate 1. The wedge pressure plate 1 is a flat plate vertically set on the screen wall of the vibrating screen. The wedge 14 is installed in the mounting opening 13 formed between the wedge pressure plate 1 and the screen 30. When the pressure plate connecting plate 2 is placed above the wedge pressure plate 1, the hooking structure 15 will contact the side of the wedge pressure plate 1 and restrict the wedge pressure plate 1 within the angled space formed by the hooking structure 15 and the pressure plate connecting plate 2. A pushing device 3 is provided above the pressure plate connecting plate 2. The pushing device 3 is fixed to the pressure plate connecting plate 2 by a base 4. The pushing device 3 includes a pushing rod 6, which can move horizontally towards or away from the hooking structure 15. When the push rod 6 extends horizontally, it will contact the wedge 14 and push the wedge 14 out smoothly. During this process, the push rod 6 will pass over the hook structure 15. When the push rod 6 contacts the wedge 14 and applies a pushing force to the wedge 14, the pressure plate connecting plate 2 will be subjected to a force opposite to the direction of the pushing force. At this time, the hook structure 15 will abut against the side of the wedge pressure plate 1, making the device more stable. At the same time, at least one side of the pressure plate connecting plate 2 perpendicular to the extension direction of the push rod 6 is provided with a screen wall connecting plate 11. The inner side of the screen wall connecting plate 11 is provided with a permanent magnet adsorption device 10. The permanent magnet adsorption device 10 can make the screen wall connecting plate 11 generate magnetic attraction force, thereby making the screen wall connecting plate 11 firmly adsorbed on the screen wall of the vibrating screen by magnetic force, further improving the stability of the device and preventing the device from shifting or shaking when disassembling the wedge 14.

[0032] In a preferred embodiment of this utility model, the pushing device 3 is equipped with a power element 5, which is fixedly mounted on the base 4. The power element 5 is an electric cylinder. One end of the pushing rod 6 is connected to the power element 5, and the other end is a free end connected to a rubber push head 7. The power element 5 is used to drive the pushing rod 6 to extend or retract horizontally. When the pushing rod 6 extends to contact the wedge block 14, the rubber push head 7 can increase the contact area between the pushing rod 6 and the wedge block 14, which facilitates the pushing out of the wedge block 14 and protects the wedge block 14 from damage. In other embodiments, the free end of the pushing rod 6 can also be connected to a block-shaped contact element or other shaped contact element, as long as it can increase the contact area between the pushing rod 6 and the wedge block 14 without damaging the wedge block 14. In other embodiments, the power element 5 can be a hydraulic cylinder or an electric push rod, as long as it can drive the pushing rod 6 to extend or retract horizontally.

[0033] In a preferred embodiment of this utility model, the hook structure 15 is a hook formed by bending the corresponding end of the pressure plate connecting plate 2 downwards. A right angle is formed between the hook and the pressure plate connecting plate 2. When the push rod 6 extends horizontally and pushes the wedge block 14 horizontally out, the wedge block 14 exerts a force on the push rod 6 in the opposite direction to the pushing force. This force is horizontally transmitted to the pressure plate connecting plate 2. When the pressure plate connecting plate 2 is subjected to this force, the right angle formed between the pressure plate connecting plate 2 and the hook will abut against the wedge block pressure plate 1. The pressure plate connecting plate 2 and the wedge pressure plate 1 are positioned together. During this process, the reverse force on the push rod 6 is less than the pushing force of the push rod 6, that is, the push rod 6 can eventually push the wedge 14 out completely. In other embodiments, the hook structure 15 can also be set as a welding block or hook plate, which is fixedly connected to the pressure plate connecting plate 2 by welding or bolts or other connection structures. At the same time, the hook structure 15 can also form an acute angle with the pressure plate connecting plate, as long as the pressure plate connecting plate 2 and the wedge pressure plate 1 can be hooked together in the end without displacement.

[0034] In a preferred embodiment of this utility model, the permanent magnet adsorption device 10 is connected to the pressure plate connecting plate 2 via a support leg 8. The pushing device 3 is located below the permanent magnet adsorption device 10. The support leg 8 is a triangular support leg, and the support leg 8 is fixedly connected to the pressure plate connecting plate 2. A window 9 is provided on the side of the support leg 8 near the pushing rod 6, and the free end of the pushing rod 6 can extend out from the window 9. In other embodiments, the support leg 8 can also be a four-corner support leg or a multi-corner support leg. The support leg 8 only serves as a connecting component between the permanent magnet adsorption device 10 and the pressure plate connecting plate 2.

[0035] In a preferred embodiment of this utility model, two screen wall connecting plates 11 are provided, which are arranged on both sides of the pressure plate connecting plate 2 perpendicular to the extension and retraction direction of the push rod 6. The permanent magnet adsorption device 10 is located between the two screen wall connecting plates 11. The permanent magnet adsorption device 10 includes a housing 12 and a permanent magnet switch rotor 16. The housing 12 is a hollow box with openings on the left and right sides. The two screen wall connecting plates 11 are respectively connected to the openings on the left and right sides of the housing 12. A horizontal beam 18 is arranged between the two screen wall connecting plates 11, and the two ends of the beam 18 are fixed to the corresponding screen wall connecting plates 11. The permanent magnet switch rotor 16 is rotatably connected to one side of the beam 18. The rotor 16 has a handle 19 via a shaft. A central hole 20 is made in the outer shell 12. The shaft passes through the central hole 20 and is connected to the handle 19. When a rotational force is applied to the handle 19, the shaft will drive the permanent magnet switch rotor 16 to rotate synchronously. At the same time, several sheet magnets 21 are also provided on the crossbeam 18. One end of the sheet magnet 21 is fixed to the crossbeam 18, and the other end is fixed to the inner wall of the outer shell 12. Several sheet magnets 21 are symmetrically and evenly distributed around the permanent magnet switch rotor 16. By rotating the handle 19 of the permanent magnet switch rotor 16, the screen plate connecting plate 11 can be firmly magnetically attracted to the screen wall of the vibrating screen, which can further improve the stability of the device during use.

[0036] See Figure 5 The method of using the vibrating screen wedge disassembly device of this utility model is as follows: Place the pressure plate connecting plate 2 above the wedge pressure plate 1, and hook the pressure plate connecting plate 2 onto the wedge pressure plate 1 through the hooking structure 15. Then rotate the handle 19 of the permanent magnet switch rotor 16 to rotate the handle 19 to the position shown in the figure. Figure 4 At the position shown, the magnetic field lines on the left are internally conductive and cannot cut the corresponding screen wall connecting plate 11, so the screen wall connecting plate 11 will not generate magnetism. However, the magnetic field lines on the right cut the corresponding screen wall connecting plate 11, causing it to generate magnetism and thus creating a strong magnetic attraction to the screen wall. At this time, the power element 5 is activated, and the power element 5 drives the push rod 6 to extend. The free end of the push rod 6 extends from the window 9 until the rubber push head 7 contacts one side of the wedge block 14. As the push rod 6 continues to extend, the wedge block 14 is gradually pushed out of the mounting port 13 by the push rod 6, thus realizing the disassembly of the wedge block 14. After disassembly, the power element 5 controls the push rod 6 to shorten and reset, so that the push rod 6 is back in the window 9. The window 9 can protect the push rod 6 and prevent it from being bumped.

[0037] See Figures 6 to 7As another embodiment of this utility model, the permanent magnet adsorption device 10 is also provided with a limiting member 17. The limiting member 17 is disposed on both sides of the permanent magnet switch rotor 16. The limiting member 17 is a latching structure. When the handle 19 of the permanent magnet switch rotor 16 is rotated, the handle 19 can be rotated to contact the limiting member 17. The limiting member 17 will lock the position of the handle 19, thereby keeping the rotation angle of the permanent magnet switch rotor 16 unchanged, thus ensuring that the screen wall connecting plate 11 remains in a magnetic adsorption state. Specifically:

[0038] Two limiting holes 22 are symmetrically opened on the outer shell 12. The two limiting holes 22 are located on both sides of the central hole 20. The limiting component 17 includes a limiting post 23 and a spring fixing plate 24. There are two spring fixing plates 24, and both spring fixing plates 24 are fixed to the crossbeam 18. The two spring fixing plates 24 are set on both sides of the permanent magnet switch rotor 16. A spring 25 is connected to each of the two spring fixing plates 24. An adjusting plate 26 is connected to the free end of the spring 25. That is, the spring 25 is located between the spring fixing plate 24 and the adjusting plate 26. One end of the limiting post 23 is connected to the adjusting plate 26, and the other end passes through the limiting hole 22. The adjusting plate 26 is located between the limiting post 23 and the spring 25. The end of the limiting post 23 that passes through the limiting hole 22 is located outside the outer shell 12 and has an inclined surface.

[0039] In this embodiment, when the handle 19 is rotated, it contacts the limiting post 23. The limiting post 23 locks the position of the handle 19, thereby locking the rotation angle of the permanent magnet switch rotor 16. This ensures that the screen wall connecting plate 11 is always in a magnetic state, preventing workers from accidentally touching it and causing the screen wall connecting plate 11 to demagnetize and separate from the screen wall of the vibrating screen.

[0040] See Figure 8 As another embodiment of the present invention, a connecting shaft 27 is provided on the side of the permanent magnet switch rotor 16 near the crossbeam 18, and a countersunk hole 28 is provided on the side of the crossbeam 18 near the permanent magnet switch rotor 16. A one-way bearing 29 is fixed in the countersunk hole 28, and one end of the connecting shaft 27 extends into the one-way bearing 29 and is fixedly connected to the inner wall of the one-way bearing 29.

[0041] In this embodiment, by setting a one-way bearing 29, the handle 19 of the permanent magnet switch rotor 16 can be prevented from rotating in the opposite direction, which would cause the screen wall connecting plate 11 to demagnetize and thus separate from the screen wall of the vibrating screen.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A vibrating screen wedge disassembly device, characterized in that: The device includes a pressure plate connecting plate, which has a hook structure for hooking the pressure plate connecting plate onto a wedge pressure plate. A pushing device is installed on the pressure plate connecting plate and is fixed to the pressure plate connecting plate by a base. The pushing device includes a pushing rod that can horizontally extend or retract in a direction away from or towards the hook structure. At least one side of the pressure plate connecting plate perpendicular to the extension or retraction direction of the pushing rod is provided with a screen wall connecting plate, and a permanent magnet adsorption device is provided on the inner side of the screen wall connecting plate.

2. The vibrating screen wedge disassembly device according to claim 1, characterized in that: The jacking device is equipped with a power element, which is used to drive the jacking rod to extend and retract horizontally.

3. The vibrating screen wedge disassembly device according to claim 2, characterized in that: One end of the push rod is connected to the power element, and the other end is a free end connected to a rubber push head.

4. The vibrating screen wedge disassembly device according to claim 1, characterized in that: The hook structure is an eave formed by bending the corresponding end of the pressure plate connecting plate downwards.

5. The vibrating screen wedge disassembly device according to claim 1, characterized in that: The permanent magnet adsorption device is connected to the pressure plate connecting plate via support legs, and the pushing device is located below the permanent magnet adsorption device.

6. The vibrating screen wedge disassembly device according to claim 5, characterized in that: The permanent magnet adsorption device includes a permanent magnet switch rotor. By rotating the handle of the permanent magnet switch rotor, the screen wall connecting plate can be magnetically adsorbed onto the screen wall.

7. The vibrating screen wedge disassembly device according to claim 6, characterized in that: The permanent magnet adsorption device is also equipped with a limiting component, which is a contact lock structure. The handle of the permanent magnet switch rotor can be rotated to a position where it contacts and is locked to the limiting component.

8. The vibrating screen wedge disassembly device according to claim 1, characterized in that: The screen wall connecting plate is provided on both sides of the pressure plate connecting plate that are perpendicular to the extension and retraction direction of the push rod.

9. The vibrating screen wedge disassembly device according to claim 5, characterized in that: A window is provided on the leg near the push rod, and the push rod extends out of the window.

10. The vibrating screen wedge disassembly device according to claim 2 or 3, characterized in that: The power component is an electric cylinder.

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