A new compound vibrating screen screening structure

Abstract

The utility model provides a novel compound vibrating screen screening structure relates to vibrating screen technical field, including screening mechanism, the inner surface of screening mechanism is provided with the discharge mechanism, screening mechanism includes screening machine body, the fixed block is provided with in screening machine body inner wall, the inner wall of screening machine body is connected with fixed block outside vertical sliding. The utility model discloses through motor starting cam to fixed frame and applies downward pressure, and this periodic force can be directly transmitted to fixed block, and then synchronous drive guide roller moves down, and the vertical displacement of guide roller can be converted into the periodic thrust to the inclined surface of triangular plate, when guide roller moves down along with fixed block, the cambered surface will slide down along the inclined surface of triangular plate and produce horizontal thrust to the inclined surface, and the inclined surface of triangular plate is driven to the short -range sliding of screen plate to screening machine body one side, and when sliding, it is in the quick way sliding, like this can let material even spread on screen plate, makes every part material can fully contact screen plate.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen technology, and in particular to a novel compound vibrating screen screening structure. Background Technology

[0002] The double vibrating screen is a screening equipment that enables materials to be efficiently layered and quickly screened on the screen surface. It can simultaneously improve the material throughput and screening accuracy, and is suitable for screening complex materials such as wet, sticky, and mixed particles. It is widely used in mining, building materials, chemical, and grain processing industries, and can complete the grading, impurity removal, and dehydration of materials.

[0003] In existing technologies, there are various types of vibrating screens, which are selected according to the object being processed. Among them is the duplex vibrating screen, which achieves efficient stratification and precise grading of materials through the combination of vibration and multiple screen layers. It can quickly separate materials of different particle sizes and reduce screen clogging. However, the double vibrating screen uses a vibrating motor to help screen materials, but there is only one feed inlet. This means that the material cannot spread quickly after entering, and it is easy for the material to accumulate in local areas of the screen plate. This not only prolongs the time for the material to pass through the screen holes, but also results in low screen surface utilization due to uneven material distribution. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a novel double-vibrating screen structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a novel compound vibrating screen screening structure, comprising a screening mechanism, wherein a discharge mechanism is provided on the inner surface of the screening mechanism, the screening mechanism includes a screening machine body, a fixing block is provided on the inner wall of the screening machine body, the inner wall of the screening machine body is perpendicularly and slidably connected to the outer side of the fixing block, a connecting rod is provided at one end of the fixing block, one end of the fixing block is fixedly connected to one end of the connecting rod, a guide roller is provided at the other end of the connecting rod, the other end of the connecting rod is fixedly connected to one side of the guide roller, a triangular plate is provided on the arc surface of the guide roller, the arc surface of the guide roller contacts the inclined surface of the triangular plate, a screen plate is provided at one end of the triangular plate, and one end of the triangular plate is fixedly connected to one end of the screen plate.

[0006] In a preferred embodiment, the discharge mechanism includes an inclined plate, one end of which is fixedly connected to the inner surface of the screening machine body. A closing plate is provided on the bottom inner wall of the screening machine body, and the bottom inner wall of the screening machine body is slidably connected to the outer side of the closing plate.

[0007] In a preferred embodiment, a spring is provided on the inner wall of the screening machine body. The inner wall of the screening machine body is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to one side of the fixing block.

[0008] In a preferred embodiment, one end of the fixing block is provided with a fixing frame, one end of the fixing block is fixedly connected to one end of the fixing frame, and one end of the fixing block is vertically slidably connected to the inner wall of the screening machine body.

[0009] In a preferred embodiment, a cam is provided on the inner surface of the fixed frame, and the inner surface of the fixed frame is in rotatable contact with the outer side of the cam. A motor is provided at the center of the cam, and the center of the cam is fixedly connected to the output end of the motor. The outer side of the motor is fixedly connected to one side end of the screening machine body.

[0010] In a preferred embodiment, an inner block is provided on one side of the sieve plate, and one side of the sieve plate is fixedly connected to one end of the inner block. A sub-rod is provided on one side of the inner block, and one side of the inner block is fixedly connected to one end of the sub-rod.

[0011] In a preferred embodiment, a mother tube is provided on the outer side of one end of the sub-rod, the outer side of one end of the sub-rod is slidably connected to the inner surface of the mother tube, and one end of the mother tube is fixedly connected to the inner wall of the screening machine body.

[0012] In a preferred embodiment, one end of the sub-rod is provided with a second spring, one end of the sub-rod is fixedly connected to one end of the second spring, and the other end of the second spring is fixedly connected to the inner surface of the mother tube.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. The motor starts the cam to apply downward pressure to the fixed frame. This periodic force is directly transmitted to the fixed block, which in turn drives the guide roller to move downward. The vertical displacement of the guide roller is converted into a periodic thrust on the inclined surface of the triangular plate. When the guide roller moves downward with the fixed block, its arc surface slides down along the inclined surface of the triangular plate and generates a lateral thrust on the inclined surface, pushing the triangular plate to drive the screen plate to slide a short distance to one side of the screening machine body. The sliding is in a fast manner, which allows the material to be evenly spread on the screen plate, so that each part of the material can fully contact the screen plate. 2. The inclined plate guides the dust during the screening process to concentrate in one place. Since a closing plate is installed in the middle of the bottom side of the screening machine body, the dust naturally falls on the closing plate. Then, by pulling the closing plate to one side, the dust accumulated on it can be quickly discharged outside the screening machine body, avoiding the accumulation of dust inside the machine body and causing contamination of the parts. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a novel compound vibrating screen screening structure provided by this utility model.

[0015] Figure 2 This is a top view of the screening mechanism components of a novel compound vibrating screen provided by this utility model.

[0016] Figure 3 This is a side sectional view of the screening mechanism components of a novel compound vibrating screen provided by this utility model.

[0017] Figure 4 This utility model provides a schematic diagram of the screening mechanism components of a novel compound vibrating screen.

[0018] Figure 5 This utility model provides a schematic diagram of the screening mechanism components of a novel compound vibrating screen.

[0019] Figure 6 This is an enlarged structural diagram of the discharge mechanism component of a novel compound vibrating screen for this utility model.

[0020] Legend: 1. Screening mechanism; 11. Screening machine body; 12. Screen plate; 13. Triangular plate; 14. Guide roller; 15. Connecting rod; 16. Fixing block; 17. Cam; 18. Fixing frame; 19. Spring 1; 110. Inner block; 111. Sub-rod; 112. Main tube; 113. Spring 2; 114. Motor; 2. Discharge mechanism; 21. Closing plate; 22. Inclined plate. Detailed Implementation

[0021] 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. Example

[0022] like Figures 1-6As shown, this utility model provides a technical solution: a novel compound vibrating screen screening structure, including a screening mechanism 1, a discharge mechanism 2 provided on the inner surface of the screening mechanism 1, the screening mechanism 1 including a screening machine body 11, a fixing block 16 provided on the inner wall of the screening machine body 11, the inner wall of the screening machine body 11 being vertically and slidably connected to the outer side of the fixing block 16, a connecting rod 15 provided at one end of the fixing block 16, one end of the fixing block 16 being fixedly connected to one end of the connecting rod 15, a guide roller 14 provided at the other end of the connecting rod 15, and the other end of the connecting rod 15 being... One end is fixedly connected to one side of the guide roller 14. A triangular plate 13 is provided on the arc surface of the guide roller 14, and the arc surface of the guide roller 14 contacts the inclined surface of the triangular plate 13. A screen plate 12 is provided at one end of the triangular plate 13, and one end of the triangular plate 13 is fixedly connected to one end of the screen plate 12. A spring 19 is provided on the inner wall of the screening machine body 11, and one end of the spring 19 is fixedly connected to the inner wall of the screening machine body 11. The other end of the spring 19 is fixedly connected to one side of the fixing block 16. A fixing frame 18 is provided at one end of the fixing block 16. One end of the fixed block 16 is fixedly connected to the fixed frame 18, and the other end of the fixed block 16 is vertically slidably connected to the inner wall of the screening machine body 11. A cam 17 is provided on the inner surface of the fixed frame 18, and the inner surface of the fixed frame 18 rotatably contacts the outer side of the cam 17. A motor 114 is located at the center of the cam 17, and the center of the cam 17 is fixedly connected to the output end of the motor 114. The outer side of the motor 114 is fixedly connected to one side of the screening machine body 11. An inner block 110 is provided on one side of the screen plate 12, and one side of the screen plate 12 is connected to the inner block 110. The inner block 110 is fixedly connected to one end of the inner block 110. A sub-rod 111 is provided on one side of the inner block 110. One side of the inner block 110 is fixedly connected to one end of the sub-rod 111. A mother tube 112 is provided on the outer side of one end of the sub-rod 111. The outer side of one end of the sub-rod 111 is slidably connected to the inner surface of the mother tube 112. One end of the mother tube 112 is fixedly connected to the inner wall of the screening machine body 11. A second spring 113 is provided on one end of the sub-rod 111. One end of the sub-rod 111 is fixedly connected to one end of the second spring 113. The other end of the second spring 113 is fixedly connected to the inner surface of the mother tube 112.

[0023] In this embodiment, during use, the screening structure of this novel compound vibrating screen has a screen plate 12 installed inside the screening machine body 11. The screen plate 12 can slide a short distance inside the screening machine body 11. A fixing block 16 is designed on the inner wall of one end of the screening machine body 11. Springs 19 are installed on both the upper and lower sides of the fixing block 16. The springs 19 help the fixing block 16 to return to its original position without being affected by external forces. A connecting rod 15 is installed at one end of the fixing block 16, and the other end of the connecting rod 15 is fixed to one side of the guide roller 14. The fixing block 16, connecting rod 15, and guide roller 14 are integrated. The arc surface of guide roller 14 is in contact with the inclined surface of triangular plate 13. Triangular plate 13 is installed at one end of screen plate 12. Through the contact between the arc surface of guide roller 14 and inclined plate 22, a lateral external force is generated, causing screen plate 12 to move. A fixing frame 18 is installed at the other end of fixing block 16. A cam 17 is inside the frame. The center of cam 17 is fixed to the output end of motor 114. Therefore, when motor 114 starts cam 17, it will continuously exert force on the output end of motor 114 during rotation. The inner wall of the fixed frame 18 generates periodic extrusion force, which causes the fixed frame 18 to descend. This periodic force is directly transmitted to the fixed block 16, causing the fixed block 16 to perform reciprocating vertical displacement, which in turn drives the guide roller 14 to move up and down synchronously. The vertical displacement of the guide roller 14 is converted into a periodic thrust on the inclined surface of the triangular plate 13. When the guide roller 14 moves downward with the fixed block 16, its arc surface slides down along the inclined surface of the triangular plate 13 and generates a lateral thrust on the inclined surface, pushing the triangular plate 13 to drive the screen plate 12 towards the screen. The machine body 11 slides short distance on one side. When the cam 17 rotates to the position without extrusion force, the fixed block 16 rises upward under the elastic restoring force of the upper and lower springs 19. The guide roller 14 moves upward accordingly. At this time, the arc surface of the guide roller 14 slides upward along the inclined surface of the triangular plate 13, and the lateral thrust disappears. Therefore, combined with the vibration motor 114 on the screening machine body 11 and the movement mode mentioned above, the material can be evenly spread on the screen plate 12, avoiding local accumulation of material and ensuring that each part of the material can fully contact the screen plate 12. An inner rod is installed on one side of the screen plate 12. Since the inside of the screening machine body 11 has a rectangular groove, the inner rod is located in the rectangular groove. A sub-rod 111 is designed on one side of the inner rod. One end of the sub-rod 111 is located on the inner surface of the mother tube 112, and a spring 113 is added between the two. One end of the mother tube 112 is fixed to the inner surface of the rectangular groove. As a result, the sub-rod 111 will move and extend within the mother tube 112 as the inner rod moves. When the screen plate 12 slides to one side, the sub-rod 111 is pushed inward into the mother tube 112. The spring 113 is compressed and generates a reverse elastic force. When the screen plate 12 slides in the opposite direction under the action of the reset force, the spring 113 releases its elastic potential energy and pushes the sub-rod 111 out of the mother tube 112, assisting the screen plate 12 to quickly reset and make it contact the guide roller 14 again. Example

[0024] like Figures 1-6 As shown, the discharge mechanism 2 includes an inclined plate 22. One end of the inclined plate 22 is fixedly connected to the inner surface of the screening machine body 11. A closing plate 21 is provided on the bottom inner wall of the screening machine body 11. The bottom inner wall of the screening machine body 11 is slidably connected to the outer side of the closing plate 21.

[0025] In this embodiment, by installing inclined plates 22 on the bottom side of the inner surface of the screening machine body 11, there are two inclined plates 22. When dust falls on the inclined plates 22 during the use of the screening machine body 11, the dust is guided to concentrate in one place by the path of the inclined plates 22. Since a closing plate 21 is installed in the middle of the bottom side of the screening machine body 11, the dust naturally falls on the closing plate 21. Then, by pulling the closing plate 21 to one side, the dust accumulated on it can be quickly discharged to the outside of the screening machine body 11, avoiding the accumulation of dust in the machine body and causing contamination of the parts. Moreover, this convenient pull-out cleaning method simplifies the dust collection and processing process, and cleaning can be completed without disassembling the machine body.

[0026] Working principle: like Figures 1-6 As shown, the starting cam 17 of the motor 114 continuously exerts periodic pressure on the inner wall of the fixed frame 18 during rotation. This pressure causes the fixed frame 18 to descend. This periodic force is directly transmitted to the fixed block 16, causing the fixed block 16 to perform reciprocating vertical displacement, which in turn drives the guide roller 14 to move up and down synchronously. The vertical displacement of the guide roller 14 is converted into a periodic thrust on the inclined surface of the triangular plate 13. When the guide roller 14 moves down with the fixed block 16, its arc surface slides down along the inclined surface of the triangular plate 13 and exerts a lateral thrust on the inclined surface, pushing the triangular plate 13 to drive the screen plate 12 to slide a short distance towards the side of the screening machine body 11. The sliding is done quickly, which allows the material to be evenly spread on the screen plate 12. Secondly, when the inner rod moves with the screen plate 12, the sub-rod 111 moves in and out of the mother tube 112. After the external force on the screen plate 12 disappears, the spring 113 releases its power and pushes the sub-rod 111, while simultaneously resetting the screen plate 12.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A novel compound vibrating screen screening structure, characterized in that, The screen includes a screening mechanism (1), and a discharge mechanism (2) is provided on the inner surface of the screening mechanism (1). The screening mechanism (1) includes a screening machine body (11). A fixing block (16) is provided on the inner wall of the screening machine body (11). The inner wall of the screening machine body (11) is vertically slidably connected to the outer side of the fixing block (16). A connecting rod (15) is provided at one end of the fixing block (16). One end of the fixing block (16) is fixedly connected to one end of the connecting rod (15). A guide roller (14) is provided at the other end of the connecting rod (15). The other end of the connecting rod (15) is fixedly connected to one side of the guide roller (14). A triangular plate (13) is provided on the arc surface of the guide roller (14). The arc surface of the guide roller (14) contacts the inclined surface of the triangular plate (13). A screen plate (12) is provided at one end of the triangular plate (13). One end of the triangular plate (13) is fixedly connected to one end of the screen plate (12).

2. The novel compound vibrating screen screening structure according to claim 1, characterized in that: The discharge mechanism (2) includes an inclined plate (22), one end of which is fixedly connected to the inner surface of the screening machine body (11). A closing plate (21) is provided on the bottom inner wall of the screening machine body (11), and the bottom inner wall of the screening machine body (11) is slidably connected to the outer side of the closing plate (21).

3. The novel compound vibrating screen screening structure according to claim 1, characterized in that: The inner wall of the screening machine body (11) is provided with a spring (19), and the inner wall of the screening machine body (11) is fixedly connected to one end of the spring (19), and the other end of the spring (19) is fixedly connected to one side of the fixing block (16).

4. The novel compound vibrating screen screening structure according to claim 1, characterized in that: One end of the fixed block (16) is provided with a fixed frame (18), one end of the fixed block (16) is fixedly connected to one end of the fixed frame (18), and one end of the fixed block (16) is vertically slidably connected to the inner wall of the screening machine body (11).

5. The novel compound vibrating screen screening structure according to claim 4, characterized in that: The inner surface of the fixed frame (18) is provided with a cam (17), the inner surface of the fixed frame (18) is in rotatable contact with the outer side of the cam (17), a motor (114) is provided at the center of the cam (17), the center of the cam (17) is fixedly connected to the output end of the motor (114), and the outer side of the motor (114) is fixedly connected to one side of the screening machine body (11).

6. The novel compound vibrating screen screening structure according to claim 1, characterized in that: An inner block (110) is provided on one side of the sieve plate (12), and one side of the sieve plate (12) is fixedly connected to one end of the inner block (110). A sub-rod (111) is provided on one side of the inner block (110), and one side of the inner block (110) is fixedly connected to one end of the sub-rod (111).

7. The novel compound vibrating screen screening structure according to claim 6, characterized in that: A mother tube (112) is provided on the outer side of one end of the sub-rod (111). The outer side of one end of the sub-rod (111) is slidably connected to the inner surface of the mother tube (112). One end of the mother tube (112) is fixedly connected to the inner wall of the screening machine body (11).

8. The novel compound vibrating screen screening structure according to claim 7, characterized in that: One end of the sub-rod (111) is provided with a second spring (113), one end of the sub-rod (111) is fixedly connected to one end of the second spring (113), and the other end of the second spring (113) is fixedly connected to the inner surface of the mother tube (112).

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