High-efficiency screening machine for stone grading
By using a multi-layer filter plate vibrating screen and a rotating sweeping plate design, combined with a suction pump and a water pump system, the problem of existing stone screening machines being unable to perform fine grading has been solved, achieving efficient screening and dust control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIYAN DINGLONG MINING CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-09
AI Technical Summary
Existing stone screening equipment cannot achieve fine screening, especially single screening plates, which can only roughly divide stone into small and large particles, and cannot meet the needs of more detailed grading.
The system employs a multi-layer filter plate structure, utilizing the combination of elliptical extrusion blocks and springs to achieve vibratory screening of the filter plates. The design of a rotating sweeping plate and damper further enhances the screening effect. Simultaneously, a suction pump and water pump system are used to handle dust and prevent it from scattering.
It enables fine grading and screening of stone materials, improves screening efficiency, effectively controls dust pollution, and enhances the cleanliness of the working environment.
Smart Images
Figure CN224332687U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stone screening machine technology, and in particular to a high-efficiency screening machine for stone grading. Background Technology
[0002] A stone screening machine is a device that uses vibration or rotation to screen and classify stones. It is mainly used to classify stones according to particle size and is widely used in mining, building materials, chemical, and metallurgical industries. Its core working principle is to utilize the difference in mesh size of the screen, combined with the motion generated by the power system, to separate the stones on the screen surface.
[0003] In existing technologies, some stone screening machines use dual vibrating motors that operate in synchronous reverse rotation. The excitation forces generated by their eccentric blocks cancel each other out in the horizontal direction and combine in the vertical direction to form a resultant force. This causes the stones on the screening plate to be thrown up and move forward in a jumping motion. Under the action of the excitation force and the weight of the stones, smaller particles quickly pass through the screen holes and fall into the collection area below due to insufficient inertia, while larger particles are thrown above the screen surface due to their larger mass and continue to move forward, eventually being discharged from the end of the screening plate. However, some stone screening machines use a single screening plate, which can only roughly separate the stones into two categories: small particles that pass through the screen holes and large particles that remain on the screen surface. It is not possible to finely screen the stones. Utility Model Content
[0004] To achieve the above objectives, the present invention provides the following technical solution:
[0005] A high-efficiency screening machine for stone grading includes a screening shell. A base is fixedly connected to the bottom of the screening shell. A motor is fixedly connected inside the base. A rotating shaft is fixedly connected to the drive end of the motor, and the rotating shaft passes through the screening shell and the base. Multiple L-shaped connecting rods are fixedly connected to the outside of the rotating shaft. An elliptical extrusion block is fixedly connected to one end of each L-shaped connecting rod. Multiple fixed frame frames are fixedly connected inside the screening shell. A telescopic limiting shell is provided at the bottom of each fixed frame frame, and a filter plate is fixedly installed between the fixed frame frame and the telescopic limiting shell. A spring is fitted inside the limiting shell, with one end of the spring fixedly connected to the top of the fixed frame one, and the bottom of the filter plate fixedly connected to one end of the spring. A triangular plate is fixedly connected to the top of the filter plate. A slide rail is fixedly connected to the outside of the rotating shaft one. A sliding collar is slidably connected to the outside of the rotating shaft one and the slide rail. A rotating sweeping plate is fixedly connected to the outside of the sliding collar. A fixed plate two is fixedly connected to the outside of the rotating shaft one. A damper is fixedly connected to the bottom of the fixed plate two, and one end of the damper is fixedly connected to the top of the rotating sweeping plate, for classifying and screening the stone.
[0006] As a further description of the above technical solution:
[0007] The base has heat dissipation holes on its exterior. A second motor is fixedly connected to the exterior of the screening shell. A second rotating shaft is fixedly connected to the drive end of the second motor, and the second rotating shaft passes through the screening shell and extends out of the screening shell. A third rotating shaft is rotatably connected inside the screening shell, and the third rotating shaft passes through the screening shell. A guide plate is fixedly connected inside the screening shell to provide power and drive the second rotating shaft to rotate.
[0008] As a further description of the above technical solution:
[0009] One end of the rotating shaft 2 is fixedly connected to gear 1, and gear 2 is fixedly connected to the outside of the rotating shaft 3. Gear 1 and gear 2 are meshed and connected to drive the rotating shaft 3 to rotate.
[0010] As a further description of the above technical solution:
[0011] The first set of crushing wheels is fixedly connected to the outside of the second rotating shaft, and the second set of crushing wheels is fixedly connected to the outside of the third rotating shaft, so as to crush the stone.
[0012] As a further description of the above technical solution:
[0013] The screening shell is fixedly connected to the outside with a hinge, and a cabinet door is fixedly connected to one end of the hinge. A feed inlet is opened on the top of the screening shell. A fixing plate three is fixedly connected to the outside of the screening shell. A suction pump is fixedly connected to the top of the fixing plate three to provide suction.
[0014] As a further description of the above technical solution:
[0015] The suction pump has a suction pipe fixedly connected to its input end. One end of the suction pipe is fixedly connected to a long pipe. Multiple air vents are fixedly connected to the outside of the long pipe, and the air vents penetrate the screening shell to suck up dust inside the screening shell.
[0016] As a further description of the above technical solution:
[0017] The output end of the suction pump is fixedly connected to a dust delivery pipe, which passes through the fixed plate three. One end of the dust delivery pipe is fixedly connected to a collection box, and the dust delivery pipe passes through the collection box, which is used to deliver the sucked dust to the collection box.
[0018] As a further description of the above technical solution:
[0019] The collection box is fixedly connected to the outside of the screening shell. A water pump is fixedly connected to the top of the collection box. A pipe is fixedly connected to the input end of the water pump. A water pipe is fixedly connected to the output end of the water pump and passes through the collection box. A drawer is slidably connected inside the collection box. A handle is fixedly connected to one end of the drawer for absorbing water and mixing it with dust to prevent dust from flying away.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the starting motor drives the rotating shaft to rotate, causing the elliptical extrusion block to squeeze the triangular plate, causing the filter plate to move downwards, squeezing the telescopic limiting shell, and causing the spring to deform. When the triangular plate passes through the triangular plate, the spring that has lost its compression begins to rebound, causing the filter plate to move upwards and generate vibration, thereby achieving the effect of grading and screening the stone.
[0022] 2. In this utility model, the suction pump is started to generate suction, which sucks the dust inside the screening shell through the vent pipe, transports it through the long pipe, and delivers it to the collection box through the dust delivery pipe. The water pump is started to draw water from the external source through the pipe, and mixes the dust inside the collection box through the water pipe, so as to prevent the dust from flying everywhere during screening. Attached Figure Description
[0023] Figure 1 This is a perspective view of a high-efficiency screening machine for stone grading proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of the suction pump structure of a high-efficiency screening machine for stone grading proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the crushing wheel assembly of a high-efficiency screening machine for stone grading proposed in this utility model.
[0026] Figure 4 This is a schematic diagram of the filter plate structure of a high-efficiency screening machine for stone grading proposed in this utility model;
[0027] Figure 5 This is a schematic diagram of the triangular plate structure of a high-efficiency screening machine for stone grading proposed in this utility model;
[0028] Figure 6 This is a schematic diagram of the sliding collar structure of a high-efficiency screening machine for stone grading proposed in this utility model;
[0029] Figure 7 This is a schematic diagram of the water pump structure of a high-efficiency screening machine for stone grading proposed in this utility model.
[0030] Legend:
[0031] 1. Screening shell; 2. Base; 3. Motor 1; 4. Rotating shaft 1; 5. L-shaped connecting rod; 6. Elliptical extrusion block; 7. Fixed frame 1; 8. Telescopic limiting shell; 9. Filter plate; 10. Triangular plate; 11. Slide rail; 12. Sliding collar; 13. Rotating sweeping plate; 14. Fixed plate 2; 15. Damper; 16. Heat dissipation holes; 17. Hinge; 18. Cabinet door; 19. Motor 2; 20. 21. Rotating shaft 2; 22. Gear 1; 23. Rotating shaft 3; 24. Gear 2; 25. Crushing wheel assembly 1; 26. Crushing wheel assembly 2; 27. Guide plate; 28. Feed inlet; 29. Fixed plate 3; 30. Suction pump; 31. Suction pipe; 32. Long pipe; 33. Ventilation pipe; 34. Dust conveying pipe; 35. Collection box; 36. Water pump; 37. Water pipe; 38. Pipe; 39. Drawer; 30. Handle. Detailed Implementation
[0032] 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.
[0033] Reference Figures 1 to 4 and Figure 6 This utility model provides an embodiment of a high-efficiency screening machine for stone grading, comprising a screening shell 1, a base 2 fixedly connected to the bottom of the screening shell 1, a motor 3 fixedly connected inside the base 2, a rotating shaft 4 fixedly connected to the drive end of the motor 3, and the rotating shaft 4 passing through the screening shell 1 and the base 2, a plurality of L-shaped connecting rods 5 fixedly connected to the outside of the rotating shaft 4, an elliptical extrusion block 6 fixedly connected to one end of each of the plurality of L-shaped connecting rods 5, a plurality of fixed frame 7 fixedly connected inside the screening shell 1, a telescopic limiting shell 8 provided at the bottom of each of the plurality of fixed frame 7, and a filter plate 9 fixedly installed between the fixed frame 7 and the telescopic limiting shell 8, a spring sleeved inside the telescopic limiting shell 8, one end of the spring fixedly connected to the top of the fixed frame 7, and the bottom of the filter plate 9 fixedly connected to one end of the spring, a triangular plate 10 fixedly connected to the top of the filter plate 9, and a slide rail 11 fixedly connected to the outside of the rotating shaft 4.
[0034] Reference Figures 4 to 6 A sliding collar 12 is slidably connected to the outside of the rotating shaft 4 and the slide rail 11. A rotating sweeping plate 13 is fixedly connected to the outside of the sliding collar 12. A fixing plate 14 is fixedly connected to the outside of the rotating shaft 4. A damper 15 is fixedly connected to the bottom of the fixing plate 14, and one end of the damper 15 is fixedly connected to the top of the rotating sweeping plate 13 to classify and screen the stone.
[0035] Reference Figures 1 to 3 The base 2 has heat dissipation holes 16 on its exterior. A motor 2 19 is fixedly connected to the exterior of the screening shell 1. A rotating shaft 20 is fixedly connected to the drive end of the motor 2 19. The rotating shaft 20 passes through the screening shell 1 and extends out of the screening shell 1. A rotating shaft 3 22 is rotatably connected inside the screening shell 1. The rotating shaft 3 22 passes through the screening shell 1. A guide plate 26 is fixedly connected inside the screening shell 1 to provide power and drive the rotating shaft 20 to rotate. A gear 1 21 is fixedly connected to one end of the rotating shaft 20. A gear 23 is fixedly connected to the exterior of the rotating shaft 3 22. The gear 1 21 and the gear 2 23 mesh with each other to drive the rotating shaft 3 22 to rotate. A crushing wheel set 1 24 is fixedly connected to the exterior of the rotating shaft 20. A crushing wheel set 25 is fixedly connected to the exterior of the rotating shaft 3 22 to crush the stone.
[0036] Reference Figure 2 The external of the screening shell 1 is fixedly connected to a hinge 17, and one end of the hinge 17 is fixedly connected to a cabinet door 18. The top of the screening shell 1 is provided with a feed inlet 27. The external of the screening shell 1 is fixedly connected to a fixing plate 3 28. The top of the fixing plate 3 28 is fixedly connected to a suction pump 29 for providing suction. The input end of the suction pump 29 is fixedly connected to a suction pipe 30. One end of the suction pipe 30 is fixedly connected to a long pipe 31. The external of the long pipe 31 is fixedly connected to multiple vent pipes 32, and the vent pipes 32 penetrate the screening shell 1 for sucking up dust inside the screening shell 1. The output end of the suction pump 29 is fixedly connected to a dust delivery pipe 33, and the dust delivery pipe 33 penetrates the fixing plate 3 28. One end of the dust delivery pipe 33 is fixedly connected to a collection box 34, and the dust delivery pipe 33 penetrates the collection box 34 for sending the sucked dust to the collection box 34.
[0037] Reference Figure 2 , Figure 7 The collection box 34 is externally fixedly connected to the outside of the screening shell 1. A water pump 35 is fixedly connected to the top of the collection box 34. A pipe 37 is fixedly connected to the input end of the water pump 35, and a water pipe 36 is fixedly connected to the output end of the water pump 35, with the water pipe 36 passing through the collection box 34. A drawer 38 is slidably connected inside the collection box 34. A handle 39 is fixedly connected to one end of the drawer 38 for absorbing water and mixing it with dust to prevent dust from flying away.
[0038] Working principle: The stone is fed into the screening shell 1 through the feed port 27. The motor 219 is started to drive the rotating shaft 20 to rotate, which in turn drives the gear 1 21 to rotate. Through meshing, the gear 23 rotates, which in turn drives the rotating shaft 3 22 to rotate. This causes the crushing wheel set 1 24 and the crushing wheel set 25 to rotate in opposite directions, crushing the stone. The crushed stone falls downwards by gravity and is guided by the guide plate 26 to fall onto the first layer of filter plate 9. The motor 3 is started to drive the rotating shaft 4 to rotate, which in turn drives the L-shaped connecting rod 5 to rotate, causing the elliptical extrusion block 6 to rotate.
[0039] However, when the elliptical extrusion block 6 rotates to the triangular plate 10, it is fixed by the L-shaped connecting rod 5. The elliptical extrusion block 6 will exert a downward pressure on the triangular plate 10. The filter plate 9 is connected to the telescopic limiting shell 8 and the spring inside the telescopic limiting shell 8. When the triangular plate 10 is pressed down, it drives the filter plate 9 to press down, thereby driving the telescopic limiting shell 8 to telescopically extend and retract, while squeezing the spring and deforming it. When the elliptical extrusion block 6 continues to rotate, after passing through the triangular plate 10, the spring begins to rebound, driving the filter plate 9 to rise and return to its original position, thereby generating vibration and screening the stone. The stone passes through the filter plate 9 layer by layer, and the stone is graded and screened.
[0040] When the rotating shaft 4 rotates, it drives the connected slide rail 11 to rotate, which in turn drives the sliding collar 12 to rotate, and drives the rotating sweeping plate 13 to rotate, thus screening the stones on the filter plate 9. At the same time, the rotating shaft 4 drives the fixed plate 14 to rotate, which in turn drives the damper 15 to rotate. Initially, the damper 15 is in a compressed state. When the filter plate 9 is pressed down, the damper 15 begins to rebound, generating a downward force on the rotating sweeping plate 13, so that the rotating sweeping plate 13 can always stay close to the filter plate 9 and sweep the stones on the filter plate 9, avoiding the stones from being pushed onto the top surface of the filter plate 9 and affecting the filtration effect of the filter plate 9.
[0041] The suction pump 29 is started, which sucks up the dust inside the screening shell 1 through the vent pipe 32, the long pipe 31 and the suction pipe 30, preventing the dust inside the screening shell 1 from escaping. The sucked-up dust is sent into the collection box 34 through the dust delivery pipe 33. At the same time, the water pump 35 is started, which sucks up the external water source through the pipe 37, and sends it into the collection box 34 through the water pipe 36 to mix the dust in the collection box 34. When too much mixed water accumulates inside the drawer 38, the handle 39 is held and the drawer 38 containing mixed water is pulled out to treat the mixed water inside the drawer 38.
[0042] 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 high-efficiency screening machine for stone grading, comprising a screening shell (1), characterized in that: The bottom of the screening shell (1) is fixedly connected to a base (2). A motor (3) is fixedly connected inside the base (2). A rotating shaft (4) is fixedly connected to the drive end of the motor (3). The rotating shaft (4) passes through the screening shell (1) and the base (2). Multiple L-shaped connecting rods (5) are fixedly connected to the outside of the rotating shaft (4). An elliptical extrusion block (6) is fixedly connected to one end of each of the multiple L-shaped connecting rods (5). Multiple fixed frame blocks (7) are fixedly connected inside the screening shell (1). A telescopic limiting shell (8) is provided at the bottom of each of the multiple fixed frame blocks (7). A filter plate (9) is fixedly installed between the fixed frame blocks (7) and the telescopic limiting shell (8). A spring is fitted inside the filter plate (9), and one end of the spring is fixedly connected to the top of the fixed frame (7). The bottom of the filter plate (9) is fixedly connected to one end of the spring. A triangular plate (10) is fixedly connected to the top of the filter plate (9). A slide rail (11) is fixedly connected to the outside of the rotating shaft (4). A sliding collar (12) is slidably connected to the outside of the rotating shaft (4) and the slide rail (11). A rotating sweeping plate (13) is fixedly connected to the outside of the sliding collar (12). A fixed plate (14) is fixedly connected to the outside of the rotating shaft (4). A damper (15) is fixedly connected to the bottom of the fixed plate (14), and one end of the damper (15) is fixedly connected to the top of the rotating sweeping plate (13).
2. The high-efficiency screening machine for stone grading according to claim 1, characterized in that: The base (2) has heat dissipation holes (16) on its outside. The screen shell (1) is fixedly connected to a motor (19). The drive end of the motor (19) is fixedly connected to a rotating shaft (20). The rotating shaft (20) passes through the screen shell (1) and extends out of the screen shell (1). The screen shell (1) is rotatably connected to a rotating shaft (22). The rotating shaft (22) passes through the screen shell (1). The screen shell (1) is fixedly connected to a guide plate (26).
3. The high-efficiency screening machine for stone grading according to claim 2, characterized in that: One end of the rotating shaft 2 (20) is fixedly connected to gear 1 (21), and the outside of the rotating shaft 3 (22) is fixedly connected to gear 2 (23), and gear 1 (21) and gear 2 (23) are meshed together.
4. The high-efficiency screening machine for stone grading according to claim 2, characterized in that: The rotating shaft 2 (20) is externally fixedly connected to the crushing wheel assembly 1 (24), and the rotating shaft 3 (22) is externally fixedly connected to the crushing wheel assembly 2 (25).
5. The high-efficiency screening machine for stone grading according to claim 1, characterized in that: The screen shell (1) is fixedly connected to the outside of a hinge (17), and a cabinet door (18) is fixedly connected to one end of the hinge (17). The top of the screen shell (1) is provided with a feed inlet (27). The outside of the screen shell (1) is fixedly connected to a fixing plate three (28), and a suction pump (29) is fixedly connected to the top of the fixing plate three (28).
6. The high-efficiency screening machine for stone grading according to claim 5, characterized in that: The suction pump (29) has a suction pipe (30) fixedly connected to its input end. A long pipe (31) is fixedly connected to one end of the suction pipe (30). Multiple air pipes (32) are fixedly connected to the outside of the long pipe (31), and the air pipes (32) penetrate the screening shell (1).
7. The high-efficiency screening machine for stone grading according to claim 5, characterized in that: The output end of the suction pump (29) is fixedly connected to a dust delivery pipe (33), and the dust delivery pipe (33) passes through the fixed plate three (28). One end of the dust delivery pipe (33) is fixedly connected to a collection box (34), and the dust delivery pipe (33) passes through the collection box (34).
8. The high-efficiency screening machine for stone grading according to claim 7, characterized in that: The outside of the collection box (34) is fixedly connected to the outside of the screening shell (1). A water pump (35) is fixedly connected to the top of the collection box (34). A pipe (37) is fixedly connected to the input end of the water pump (35). A water pipe (36) is fixedly connected to the output end of the water pump (35), and the water pipe (36) passes through the collection box (34). A drawer (38) is slidably connected inside the collection box (34). A handle (39) is fixedly connected to one end of the drawer (38).