A vibrating screen with a screen convenient to dismount

Abstract

The utility model relates to a vibrating screen convenient to dismount and assemble screen, including vibrating screen body, vibrating screen body includes sieve box, and the opening of sieve box one end is arranged, and the sieve box is installed with screen device, and screen device includes the screen support of installation in sieve box, and the one end of screen support is installed with baffle away from sieve box open end, and the screen support is detachably installed with the screen that is parallel to screen support on, and the side of screen is installed with press screen mechanism close to sieve box wall, and press screen mechanism includes the wedge -shaped pressing plate that can slide along the length direction of sieve box, and the bottom surface of wedge -shaped pressing plate is parallel to screen, and the top surface of wedge -shaped pressing plate is the first inclined plane that higher end is close to sieve box open end, and the top of wedge -shaped pressing plate still is installed with the rack that is parallel to the first inclined plane arrangement, and the gear is engaged on rack;The operation subassembly and locking subassembly are installed on sieve box;The utility model reduces the situation of not being able to press the screen of the loosening of wedge -shaped pressing plate in the process of using, so as to facilitate the use.

Description

Technical Field

[0001] This utility model belongs to the field of vibrating screen technology, and in particular relates to a vibrating screen with an easy-to-disassemble and assemble screen mesh. Background Technology

[0002] Currently, when using vibrating screens, it is sometimes necessary to change the screen mesh size according to different usage scenarios, or the screen mesh needs to be replaced when it is damaged. Therefore, in order to facilitate the disassembly and assembly of the screen mesh, some existing technologies use a wedge block clamping device to clamp the screen mesh inside the screen box. For example, a wedge block clamping device suitable for vibrating screens is disclosed in the utility model patent with publication number CN215542662U.

[0003] Specifically, in use, this utility model uses a pry bar to pry the groove of the screen wedge with the wedge fixing shaft as the fulcrum, thereby changing the position of the screen wedge and the wedge fixing plate. However, this operation requires rotating the pry bar inside the screen box, which limits the operating space. Furthermore, once the screen wedge is in place, its position is not restricted. As a result, during the use of the vibrating screen, under the continuous vibration, the screen wedge is very easy to loosen and fail to press the screen tightly. In general, the above-mentioned utility model patent is inconvenient to use, and therefore still has shortcomings and deficiencies in the prior art. Utility Model Content

[0004] The purpose of this invention is to provide a vibrating screen with an easy-to-disassemble and assemble screen, in order to solve the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above problems is as follows: A vibrating screen with an easy-to-assemble and disassemble screen includes a vibrating screen body, the vibrating screen body including a screen box with a cavity structure, one end of the screen box being open, a screen device installed inside the screen box, the screen device including a screen support installed inside the screen box, a baffle installed at the end of the screen support away from the opening end of the screen box, and a screen arranged parallel to the screen support being detachably installed on the screen support, a screen pressing mechanism installed on the side of the screen near the screen box wall, the screen pressing mechanism including a wedge-shaped pressure plate that can slide along the length direction of the screen box, the bottom surface of the wedge-shaped pressure plate being parallel to the screen, the top surface of the wedge-shaped pressure plate being a first inclined surface with a higher end near the opening end of the screen box, and a rack arranged parallel to the first inclined surface being installed on the top of the wedge-shaped pressure plate, the rack being meshed with a gear capable of forward and reverse rotation; The screen box is equipped with an operating component that allows the gear to rotate outside the screen box, and a locking component that prevents the gear from continuing to rotate when the wedge pressure plate is in place.

[0006] Furthermore, the operating component includes a sleeve coaxially arranged with the gear and fixedly installed on the wall of the screen box. Both ends of the sleeve are open and penetrate the screen box. A gear shaft is slidably connected inside the sleeve. Both ends of the gear shaft penetrate the sleeve. The gear is fitted on the end of the gear shaft located inside the screen box. The locking assembly includes a limiting ring, which is fitted onto a gear shaft located between the gear and the screen box wall. The sleeve has a receiving groove coaxially opened at one end outside the screen box. An elastic element is fitted onto the gear shaft located in the receiving groove, and a locking nut that can extend and retract the elastic element is threaded onto the gear shaft located outside the sleeve.

[0007] Furthermore, the radial cross-section of the gear shaft away from the gear end is a hexagonal structure.

[0008] Furthermore, two fixing plates adapted to the wedge-shaped pressure plate are provided above the wedge-shaped pressure plate, and the fixing plates are fixedly installed on the screen box.

[0009] Furthermore, the wedge-shaped pressure plate has a through hole at one end near the opening of the screen box.

[0010] Furthermore, the screen device has two sets of screen pressing mechanisms, and the two sets of screen pressing mechanisms are symmetrically arranged on both sides of the screen.

[0011] Furthermore, the number of screen devices is several groups, and the several groups of screen devices are distributed along the length of the screen box. The height of the screens in the several groups of screen devices increases sequentially from the opening end of the screen box to the other end of the screen box. The screens in each group of screen devices are also inclined, and the end of each screen near the opening end of the screen box is higher than the other end of the screen. The ends of the screens in two adjacent groups of screen devices overlap.

[0012] Furthermore, each wedge-shaped pressure plate is provided with a guide bracket covering the gear. The guide brackets are all fixedly installed on the screen box, and the top surface of each guide bracket is a second inclined surface with the higher end close to the opening end of the screen box. The lower end of the top surface of each guide bracket is also higher than the higher end of the screen bracket in the adjacent screen device.

[0013] Furthermore, the top surface of the screen box is open and fitted with an openable cover plate, which is positioned away from the opening end of the screen box.

[0014] Furthermore, the vibrating screen body also includes a vibrating screen support, on which the screen box is installed, and shock-absorbing springs are installed between the four corners of the screen box and the vibrating screen support. A vibrator is also installed on the screen box.

[0015] The beneficial effects of this utility model by adopting the above technical solution are as follows: In use, when the gear rotates in both directions, the rack drives the wedge-shaped pressure plate to slide along the length of the screen box, pressing or releasing the screen on the screen support. This facilitates screen replacement. Furthermore, the operating mechanism allows the gear to rotate outside the screen box, eliminating space constraints and simplifying operation. The locking mechanism prevents further gear rotation once the wedge-shaped pressure plate is in position, thus limiting its placement and reducing the likelihood of the pressure plate becoming loose and failing to press the screen firmly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Side view of the middle part of the device; Figure 3 for Figure 2 A schematic diagram of the structure of the middle part of the device; Figure 4 for Figure 1 A three-dimensional structural diagram of the middle part of the device.

[0017] Reference numerals in the attached drawings: 1. Screen; 2. Screen support; 3. Baffle; 4. Wedge-shaped pressure plate; 41. Through hole; 5. Rack; 6. Gear; 7. Sleeve; 71. Receiving groove; 8. Gear shaft; 9. Screen box; 10. Vibrator; 11. Limiting ring; 12. Elastic element; 13. Locking nut; 14. Fixing plate; 15. Guide support; 16. Cover plate. Detailed Implementation

[0018] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0019] like Figures 1 to 4 As shown, this utility model provides a vibrating screen with an easy-to-assemble and disassemble screen, including a vibrating screen body. The vibrating screen body includes a screen box 9 with a cavity structure. One end of the screen box 9 is open. Specifically, the vibrating screen body also includes a vibrating screen support. The screen box 9 is installed on the vibrating screen support, and shock-absorbing springs are installed between the four corners of the screen box 9 and the vibrating screen support. A vibrator 10 is also installed on the screen box 9. In use, the vibrating screen of this utility model works on the same principle as the vibrating screen in the prior art.

[0020] A screen device is installed inside the screen box 9. The screen device includes a screen support 2 installed inside the screen box 9. A baffle 3 is installed at the end of the screen support 2 away from the opening of the screen box 9. A screen 1 is detachably installed on the screen support 2 and arranged parallel to the screen support 2. Specifically, the screen 1 and the screen support 2 are detachably slidably connected, and the baffle 3 can limit the end of the screen 1 away from the opening of the screen box 9. A screen pressing mechanism is installed on the side of the screen 1 near the wall of the screen box 9. The screen pressing mechanism includes a wedge-shaped pressure plate 4 that can slide along the length of the screen box 9. The bottom of the wedge-shaped pressure plate 4... The surface of the wedge-shaped pressure plate 4 is parallel to the screen 1. During use, the bottom surface of the wedge-shaped pressure plate 4 contacts the screen 1. The top surface of the wedge-shaped pressure plate 4 is the first inclined surface, which is the higher end and close to the opening end of the screen box 9. The top of the wedge-shaped pressure plate 4 is also equipped with a rack 5 that is parallel to the first inclined surface. A gear 6 that can rotate forward and backward is meshed on the rack 5. During use, when the gear 6 rotates forward and backward, the wedge-shaped pressure plate 4 can be driven to slide on the screen 1 along the length direction of the screen box 9 through the rack 5, so that the wedge-shaped pressure plate 4 can press or loosen the screen 1 on the screen support 2. This makes it easy to disassemble and replace the screen 1.

[0021] Specifically, when installing screen 1 inside screen box 9, first place screen 1 on screen support 2 until screen 1 abuts against baffle 3. Then, place wedge pressure plate 4 on screen 1 and engage rack 5 with gear 6. At this time, the higher end of the top surface of wedge pressure plate 4 is positioned close to the opening end of screen box 9. Then, by rotating gear 6, under the action of rack 5, wedge pressure plate 4 can be moved from the opening end of screen box 9 to the other end of screen box 9 until wedge pressure plate 4 is in place, and screen 1 can be pressed tightly on screen support 2. When disassembling screen 1, by rotating gear 6 in the opposite direction, wedge pressure plate 4 can be moved in the opposite direction on screen 1 under the action of rack 5 to loosen screen 1. Then, screen 1 can be removed after removing wedge pressure plate 4, thus facilitating the disassembly and assembly of screen 1.

[0022] In addition, the screen box 9 is equipped with an operating component that allows the gear 6 to rotate outside the screen box 9, so that it is not limited by the space inside the screen box 9 during use, which facilitates operation. Secondly, the screen box 9 is also equipped with a locking component that prevents the gear 6 from continuing to rotate when the wedge pressure plate 4 is in position. In this way, when the wedge pressure plate 4 is in position and presses the screen 1, the position of the wedge pressure plate 4 can be restricted, thereby reducing the occurrence of situations where the screen 1 cannot be pressed due to the position of the wedge pressure plate 4 being loose during use, which facilitates use.

[0023] The specific settings for the operation components are as follows: Figure 2 and Figure 3As shown, the operating component includes a sleeve 7 coaxially arranged with the gear 6 and fixedly installed on the wall of the screen box 9. Both ends of the sleeve 7 are open and penetrate the screen box 9. A gear shaft 8 is slidably connected inside the sleeve 7. Both ends of the gear shaft 8 penetrate the sleeve 7. The gear 6 is fitted onto the end of the gear shaft 8 located inside the screen box 9. Specifically, in use, the gear shaft 8 can be manually rotated from outside the screen box 9 to the end away from the gear 6, thereby causing the gear shaft 8 to rotate and thus drive the gear 6 to rotate in both directions.

[0024] The specific settings for the locking components are as follows: (e.g.) Figure 2 and Figure 3 As shown, the locking assembly includes a limiting ring 11, which is fitted onto the gear shaft 8 located between the gear 6 and the wall of the screen box 9. A receiving groove 71 is coaxially formed at one end of the sleeve 7 outside the screen box 9. An elastic element 12, which can be a disc spring, is fitted onto the gear shaft 8 within the receiving groove 71. A locking nut 13, capable of extending and retracting the elastic element 12, is threaded onto the gear shaft 8 outside the sleeve 7. Specifically, the locking nut 13 cooperates with the limiting ring 11 to restrict the axial movement of the gear shaft 8. In use, when the locking nut 13 is not locked, the gear shaft can be rotated... 8 can drive gear 6 to rotate until the wedge plate 4 moves into place. Then, gear shaft 8 can be manually clamped to prevent it from rotating. Then, lock nut 13 can be rotated on gear shaft 8. During the rotation of lock nut 13, elastic element 12 can be compressed. At this time, under the action of elastic element 12 rebound, lock nut 13 can be pushed outward. This can pull gear shaft 8 outward in a small range so that limit ring 11 abuts against the wall of screen box 9. Under the action of friction, when gear shaft 8 is released, it is not easy for gear shaft 8 to rotate again. Thus, after wedge plate 4 is in place, gear 6 can be prevented from continuing to rotate.

[0025] Furthermore, the radial cross-section of the end of the gear shaft 8 away from the gear 6 is hexagonal, which makes it easy to use tools such as adjustable wrenches or hex wrenches to assist in rotating the gear shaft 8 during use; and when it is necessary to rotate the locking nut 13 on the gear shaft 8, it is also easy to use tools such as adjustable wrenches or hex wrenches to manually clamp the gear shaft 8 so that the gear shaft 8 does not rotate.

[0026] Furthermore, such as Figure 1 As shown, two fixing plates 14 adapted to the wedge-shaped pressure plate 4 are provided above the wedge-shaped pressure plate 4. The fixing plates 14 are fixedly installed on the screen box 9. Specifically, the two fixing plates 14 are located at both ends of the wedge-shaped pressure plate 4. When in use, after the wedge-shaped pressure plate 4 is moved into place, the wedge-shaped pressure plate 4 can be wedge-tightened with the cooperation of the fixing plates 14 and the screen support 2, so that the wedge-shaped pressure plate 4 presses the screen 1 on the screen support 2.

[0027] Furthermore, such as Figure 1 and Figure 4 As shown, a through hole 41 is provided at one end of the wedge-shaped pressure plate 4 near the opening of the screen box 9, so that the wedge-shaped pressure plate 4 can be easily held or pulled out during use.

[0028] Furthermore, the screen device has two sets of screen pressing mechanisms, and the two sets of screen pressing mechanisms are symmetrically arranged on both sides of the screen 1. Specifically, in use, the two sets of screen pressing mechanisms can be operated independently to press or release the screen 1 respectively. By setting two sets of screen pressing mechanisms, both sides of the screen 1 near the wall of the screen box 9 can be pressed to ensure the stability of the screen 1 after it is pressed.

[0029] Furthermore, such as Figure 1 As shown, there are several sets of screen devices, which are distributed along the length of the screen box 9. The height of the screen 1 in each set of screen devices increases sequentially from the opening end of the screen box 9 to the other end. The screen 1 in each set of screen devices is also inclined, and the end of each screen 1 near the opening end of the screen box 9 is higher than the other end of the screen 1. The ends of the screen 1 in two adjacent sets of screen devices overlap to ensure the continuity of the vibrating screen in the screening area of ​​this utility model. By setting several sets of screen devices in the screen box 9, while ensuring that the vibrating screen of this utility model has a sufficient screening area, it is also convenient to disassemble and replace the screen 1 separately.

[0030] Furthermore, such as Figure 1 As shown, each wedge-shaped pressure plate 4 is equipped with a guide bracket 15 covering the gear 6. The guide brackets 15 are all fixedly installed on the screen box 9. The shape of the guide brackets 15 is as follows: Figure 1 As shown, during use, the guide bracket 15 can prevent mud and other substances from falling directly onto the meshing position of the gear 6 and the rack 5; and the top surface of each guide bracket 15 is a second inclined surface with a higher end close to the opening end of the screen box 9, and the lower end of the top surface of each guide bracket 15 is also higher than the higher end of the screen bracket 2 in the adjacent screen device. Thus, during use, when it is necessary to install the screen 1 in the screen box 9, the guide bracket 15 can serve as a sliding rail to support the screen 1, so that the screen 1 can slide in the screen box 9, thereby facilitating the installation of the screen 1 on the screen bracket 2.

[0031] Furthermore, such as Figure 1 As shown, the top surface of the sieve box 9 is open and equipped with an openable cover plate 16. One side of the cover plate 16 is hinged to the sieve box 9. The cover plate 16 is located away from the opening end of the sieve box 9. Specifically, during disassembly and assembly, the sets of screens 1 close to the opening end of the sieve box 9 can be taken out from the opening end of the sieve box 9; while the sets of screens 1 located away from the opening end of the sieve box 9 can be taken out from the opening position on the top surface of the sieve box 9 after the cover plate 16 is opened.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A vibrating screen with an easily detachable screen mesh, comprising a vibrating screen body, the vibrating screen body including a screen box with a cavity structure, wherein one end of the screen box is open, characterized in that: The sieve box is equipped with a sieve device, which includes a sieve support installed inside the sieve box. A baffle is installed at one end of the sieve support away from the opening of the sieve box, and a sieve is detachably installed on the sieve support and arranged parallel to the sieve support. A sieve pressing mechanism is installed on the side of the sieve near the wall of the sieve box. The sieve pressing mechanism includes a wedge-shaped pressing plate that can slide along the length of the sieve box. The bottom surface of the wedge-shaped pressing plate is parallel to the sieve, and the top surface of the wedge-shaped pressing plate is a first inclined surface with a higher end near the opening of the sieve box. A rack is also installed on the top of the wedge-shaped pressing plate and arranged parallel to the first inclined surface. A gear that can rotate in both directions is meshed on the rack. The screen box is equipped with an operating component that enables the gear to rotate outside the screen box, and the screen box is also equipped with a locking component that prevents the gear from continuing to rotate after the wedge pressure plate is in place.

2. The vibrating screen with an easily detachable screen mesh according to claim 1, characterized in that: The operating component includes a sleeve coaxially arranged with the gear and fixedly installed on the wall of the screen box. Both ends of the sleeve are open and penetrate the screen box. A gear shaft is slidably connected inside the sleeve. Both ends of the gear shaft penetrate the sleeve. The gear is fitted on the end of the gear shaft located inside the screen box. The locking assembly includes a limiting ring, which is fitted onto a gear shaft located between the gear and the screen box wall. The sleeve has a receiving groove coaxially opened at one end outside the screen box. An elastic element is fitted onto the gear shaft located in the receiving groove, and a locking nut that can extend and retract the elastic element is threaded onto the gear shaft located outside the sleeve.

3. A vibrating screen with an easily detachable screen mesh according to claim 2, characterized in that: The radial cross-section of the gear shaft away from the gear end is a hexagonal structure.

4. A vibrating screen with an easily detachable screen mesh according to claim 1, characterized in that: Two fixing plates adapted to the wedge-shaped pressure plate are provided above the wedge-shaped pressure plate, and the fixing plates are fixedly installed on the screen box.

5. A vibrating screen with an easily detachable screen mesh according to claim 1, characterized in that: The wedge-shaped pressure plate has a through hole at one end near the opening of the sieve box.

6. A vibrating screen with an easily detachable screen mesh according to claim 1, characterized in that: The screen device has two sets of screen pressing mechanisms, and the two sets of screen pressing mechanisms are symmetrically arranged on both sides of the screen.

7. A vibrating screen with an easily detachable screen mesh according to any one of claims 1-6, characterized in that: The number of screen devices is several groups, and the several groups of screen devices are distributed along the length of the screen box. The height of the screens in the several groups of screen devices increases sequentially from the opening end of the screen box to the other end of the screen box. The screens in each group of screen devices are also inclined, and the end of each screen near the opening end of the screen box is higher than the other end of the screen. The ends of the screens in two adjacent groups of screen devices overlap.

8. A vibrating screen with an easily detachable screen mesh according to claim 7, characterized in that: Each wedge-shaped pressure plate is equipped with a guide bracket covering the gear. The guide brackets are all fixedly installed on the screen box, and the top surface of each guide bracket is a second inclined surface with the higher end close to the opening end of the screen box. The lower end of the top surface of each guide bracket is also higher than the higher end of the screen bracket in the adjacent screen device.

9. A vibrating screen with an easily detachable screen mesh according to claim 7, characterized in that: The top surface of the sieve box is open and fitted with an openable cover plate, which is located away from the opening end of the sieve box.

10. A vibrating screen with an easily detachable screen mesh according to claim 1, characterized in that: The vibrating screen body also includes a vibrating screen support, on which the screen box is installed. Shock-absorbing springs are installed between the four corners of the screen box and the vibrating screen support. A vibrator is also installed on the screen box.

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