A double-layer vibrating screen
By installing a shielding component on the top of the vibrating screen body, the problem of material splashing in the double-layer vibrating screen is solved, achieving a safety protection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINCHENG SHUNSHENG NEW ENVIRONMENTAL PROTECTION BUILDING MATERIALS CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-30
AI Technical Summary
Existing double-layer vibrating screens are prone to generating high-speed splashing particles when materials fall rapidly, polluting the environment and threatening the safety of operators.
A shielding assembly is installed on the top of the vibrating screen body, including a frame edge, a limiting part, a tilting part, and a driving part. The driving part drives the tilting part to rotate, blocking splashed foreign objects.
It effectively blocks flying foreign objects, protects the safety of on-site operators, and avoids environmental pollution.
Smart Images
Figure CN224423497U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vibratory screening equipment, and in particular to a double-layer vibratory screen. Background Technology
[0002] In the classification of limestone materials in mining, double-layer vibrating screens (especially double-layer bar vibrating screens) are widely used due to their high efficiency in grading and large capacity.
[0003] However, in actual operation, existing double-layer vibrating screens are prone to generating high-speed splashing particles when materials fall rapidly under the intense vibration of the double-layer bar screen surface. These splashing particles not only fall to the ground and pollute the working environment, but also threaten the safety of on-site operators during the landing process.
[0004] Therefore, how to shield the splashes from the double-layer screen surface and reduce the safety risks to operators has become a technical problem that urgently needs to be solved in this field. Utility Model Content
[0005] The purpose of this invention is to provide a double-layer vibrating screen to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a double-layer vibrating screen, comprising:
[0007] The vibrating screen body has a double-layer screening unit for screening limestone in the top inner cavity.
[0008] A shielding assembly is used to protect against splashing foreign objects. The shielding assembly includes a frame edge disposed on the top of the vibrating screen body. A limiting part is symmetrically disposed on the top of the frame edge. A flipping part for shielding foreign objects is symmetrically disposed on the opposite side of the limiting part. An operation box is disposed on the opposite side of the flipping part and located on the top of the frame edge. A drive part for driving the flipping part to rotate is disposed in the inner cavity of the operation box.
[0009] Preferably, the limiting part includes a bearing seat, a plurality of bearing seats are symmetrically arranged on the top of the frame edge, and the flipping part is arranged on the side of the bearing seat.
[0010] Preferably, the flipping portion includes:
[0011] A rotating shaft, one end of which is inserted and connected to the middle of a bearing housing;
[0012] The other end of the rotating shaft is sequentially inserted and connected to the side of the baffle and the side of the operation box.
[0013] Preferably, the baffle has an insertion hole on its side, which is used for the insertion of the rotating shaft.
[0014] Preferably, the driving unit includes:
[0015] A rotating rod is disposed in the inner cavity of the operation box, and the two ends of the rotating rod are sequentially inserted and connected to the inner wall of the operation box. The end of the rotating rod is fixedly connected to the end of the rotating shaft.
[0016] A worm gear, which is sleeved on the outside of the rotating rod and located in the inner cavity of the operating box;
[0017] A worm gear, the end of which is inserted and connected to the side of the operating box, and the outer side of the worm gear meshes with the outer side of the worm wheel;
[0018] A handwheel, the middle of which is inserted and connected to the end of the worm gear, is used for gripping and rotating the worm gear.
[0019] Preferably, a limit bearing is provided at the intersection of the rotating rod and the operating box, and the limit bearing is used to limit the position of the rotating rod.
[0020] Preferably, an annular protrusion is provided on the outer side of the worm gear and in the inner cavity of the operating box, the annular protrusion being used to limit the position of the worm gear.
[0021] The technical effects and advantages of this utility model are as follows:
[0022] This invention features a shielding component on the top of the vibrating screen body. By holding the drive unit in the rotating control box, the operator can rotate the flipping unit. The flipping unit rotates between the opposite sides of the limiting unit, thereby blocking the splashing foreign objects caused by the shaking screening in the double-layer screening unit at the top of the vibrating screen body, thus preventing the splashing of foreign objects during screening from affecting the safety of the on-site operators. Attached Figure Description
[0023] Figure 1 This is a side view of the entire utility model.
[0024] Figure 2 This is a top view of the entire utility model.
[0025] Figure 3 This is a cross-sectional view of the drive unit of this utility model.
[0026] Figure 4 This is a schematic diagram of the structure of the baffle of this utility model.
[0027] In the diagram: 1. Vibrating screen body; 101. Double-layer screening unit; 2. Frame edge; 3. Operation box; 4. Rotating shaft; 401. Baffle; 4011. Through hole; 5. Bearing seat; 6. Drive unit; 601. Rotating rod; 602. Worm gear; 603. Worm; 604. Handwheel; 605. Limit bearing. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Example 1: This utility model provides the following... Figure 1-4 The double-layer vibrating screen shown includes: a vibrating screen body 1 and a shielding assembly;
[0030] It should be noted that the top inner cavity of the vibrating screen body 1 is provided with a double-layer screening unit 101 for screening limestone, and the shielding component is used for protection against splashing foreign objects.
[0031] Specifically, the overall structure of the double-layer screening unit 101 and the vibrating screen body 1 refers to the working principle of the BTS1224 double-layer bar vibrating screen. The lower layer has a 35mm aperture and the upper layer has a 75mm aperture. The double-layer bar vibrating screen classifies limestone of 40-80mm and larger than 80mm, thereby achieving the classification of limestone of 40-80mm and larger than 80mm, avoiding large particle size ratio deviation that leads to unstable lime quality and reducing the impact on the kiln.
[0032] Furthermore, the shielding assembly includes a frame edge 2 disposed on the top of the vibrating screen body 1. A limiting part is symmetrically disposed on the top of the frame edge 2. A flipping part for shielding foreign objects is symmetrically disposed on the opposite side of the limiting part. An operation box 3 is disposed on the opposite side of the flipping part and located on the top of the frame edge 2. A drive part 6 for driving the flipping part to rotate is disposed in the inner cavity of the operation box 3.
[0033] Specifically, the frame edge 2 is welded to the vibrating screen body 1, the operation box 3 is welded to the frame edge 2, the limiting part includes bearing seat 5, multiple bearing seats 5 are symmetrically arranged on the top of the frame edge 2, and the flipping part is arranged on the side of the bearing seat 5.
[0034] It should be noted that the bearing housing 5 is fixed to the frame edge 2 by welding, and the flipping part includes: the rotating shaft 4 and the baffle 401;
[0035] Specifically, one end of the rotating shaft 4 is inserted and connected to the middle of the bearing seat 5, and the other end of the rotating shaft 4 is sequentially inserted and connected to the side of the baffle 401 and the side of the operation box 3.
[0036] It should be noted that one end of the rotating shaft 4 is welded and fixed to the middle of the bearing seat 5. The side of the baffle 401 is provided with an insertion hole 4011 for the rotating shaft 4 to pass through. The side of the operating box 3 is provided with a through hole for the rotating shaft 4 to pass through. The rotating shaft 4 and the inner wall of the insertion hole 4011 are welded and fixed. The baffle 401 is made of aluminum alloy plate and is lightweight.
[0037] Example 2: This utility model provides a drive unit 6, which is applied to the double-layer vibrating screen in Example 1.
[0038] It should be noted that the drive unit 6 includes: a lever 601, a worm gear 602, a worm 603, and a handwheel 604;
[0039] Specifically, the rotating rod 601 is disposed in the inner cavity of the operation box 3, and the two ends of the rotating rod 601 are sequentially inserted and connected to the inner wall of the operation box 3. The end of the rotating rod 601 is fixedly connected to the end of the rotating shaft 4. The worm gear 602 is sleeved on the outside of the rotating rod 601 and located in the inner cavity of the operation box 3. The end of the worm 603 is inserted and connected to the side of the operation box 3. The outside of the worm 603 meshes with the outside of the worm gear 602. The middle part of the handwheel 604 is inserted and connected to the end of the worm 603.
[0040] It should be noted that the handwheel 604 is used to grip and rotate the worm gear 603. The rotating rod 601 is welded and fixed to the rotating shaft 4. The middle part of the worm wheel 602 is welded and fixed to the outer side of the rotating rod 601. The handwheel 604 and the worm gear 603 are welded and fixed at the intersection.
[0041] Furthermore, a limit bearing 605 is provided at the intersection of the rotating rod 601 and the operation box 3. The limit bearing 605 is used to limit the position of the rotating rod 601. An annular protrusion is provided on the outer side of the worm 603 and in the inner cavity of the operation box 3. The annular protrusion is used to limit the position of the worm 603.
[0042] It should be noted that the middle part of the limit bearing 605 is welded and fixed to the outer side of the rotating rod 601, and the outer side of the limit bearing 605 is welded and fixed to the inner wall of the through hole of the inner wall of the operating box 3, so that the rotating rod 601 can only rotate. The self-locking characteristics of the worm gear 602 and the worm 603 limit the rotation angle of the baffle 401 to prevent the baffle 401 from loosening.
[0043] In actual use, by setting a shielding component on the top of the vibrating screen body 1, the operator can rotate the flipping part by holding the drive part 6 in the rotating operation box 3. The flipping part rotates between the opposite sides of the bearing seat 5, thereby blocking the splashing foreign objects caused by shaking screening in the double-layer screening unit 101 at the top of the vibrating screen body 1, and avoiding the splashing of foreign objects during screening from affecting the safety of on-site operators.
[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A double-layer vibrating screen, characterized in that, include: Vibrating screen body (1), the top inner cavity of the vibrating screen body (1) is provided with a double-layer screening unit (101) for screening limestone; shielding assembly, the shielding assembly is used for protection and shielding of splashed foreign objects, the shielding assembly includes a frame edge (2) provided on the top of the vibrating screen body (1), the top of the frame edge (2) is symmetrically provided with a limiting part, the opposite side of the limiting part is symmetrically provided with a flipping part for shielding foreign objects, the opposite side of the flipping part and located on the top of the frame edge (2) is provided with an operation box (3), the inner cavity of the operation box (3) is provided with a drive part (6) for driving the flipping part to rotate.
2. The double-layer vibrating screen according to claim 1, characterized in that, The limiting part includes a bearing seat (5), and a plurality of the bearing seats (5) are symmetrically arranged on the top of the frame edge (2), and the flipping part is arranged on the side of the bearing seat (5).
3. A double-layer vibrating screen according to claim 2, characterized in that, The flipping part includes: a rotating shaft (4), one end of which is inserted and connected to the middle of the bearing seat (5); and a baffle (401), the other end of which is inserted and connected to the side of the baffle (401) and the side of the operation box (3).
4. A double-layer vibrating screen according to claim 3, characterized in that, The baffle (401) has an insertion hole (4011) on its side, which is used for the insertion of the rotating shaft (4).
5. A double-layer vibrating screen according to claim 3, characterized in that, The drive unit (6) includes: a rotating rod (601), which is disposed in the inner cavity of the operation box (3), with both ends of the rotating rod (601) sequentially inserted and connected to the inner wall of the operation box (3), and the end of the rotating rod (601) being fixedly connected to the end of the rotating shaft (4); a worm gear (602), which is sleeved on the outside of the rotating rod (601) and located in the inner cavity of the operation box (3); a worm (603), the end of which is inserted and connected to the side of the operation box (3), and the outside of the worm (603) meshing with the outside of the worm gear (602); and a handwheel (604), the middle part of which is inserted and connected to the end of the worm (603), and the handwheel (604) is used for gripping and rotating the worm (603).
6. A double-layer vibrating screen according to claim 5, characterized in that, A limit bearing (605) is provided at the intersection of the rotating rod (601) and the operating box (3), and the limit bearing (605) is used to limit the position of the rotating rod (601).
7. A double-layer vibrating screen according to claim 5, characterized in that, An annular protrusion is provided on the outer side of the worm (603) and in the inner cavity of the operation box (3), the annular protrusion being used to limit the position of the worm (603).