Novel double-layer banana flip-flow screen

Abstract

The utility model discloses a novel double-layer banana flip-flow screen, relates to the technical field of screening machinery, and aims to solve the problem that in the prior art, a double-layer banana flip-flow screen cannot control the movement speed of materials, so that screening is not thorough, the novel double-layer banana flip-flow screen comprises a screening machine body, a screen frame is arranged outside the screening machine body, and a rotating rod is rotationally connected in the screen frame. An upper baffle and a lower baffle are respectively arranged on the rotating rod, an adjusting piece is arranged on the outer wall of one side of the screen frame and drives the rotating rod to rotate synchronously, the upper baffle and the lower baffle prevent materials from sliding off in the screening process, the movement speed of the materials is effectively controlled, the time length of material screening is prolonged, the thoroughness and the fineness of screening are improved, and the screening efficiency is improved. According to the double-layer banana flip-flow screen, the connecting rod can be conveniently driven to move through the adjusting piece, the passing gap of materials blocked by the baffle is changed, screening conditions of different materials are adapted, practicability of the double-layer banana flip-flow screen is enhanced, the materials make full contact with the screen, and screening precision and screening efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of screening machinery technology, and in particular to a novel double-layer banana tension screen. Background Technology

[0002] The banana-shaped tension screen is a new type of screening equipment suitable for industries such as coal, coal chemical, power, coke, metallurgy, and building materials. It is a special dry screening equipment for screening small particles and wet, sticky materials. It combines the advantages of traditional tension screens and banana screens, and uses polyurethane screen plates with high elasticity, which prevents clogging during screening and improves screening accuracy.

[0003] The banana-shaped tension screen uses linear vibration generated by a fixed frame driven by a vibrator as the basic vibration and vibration generated by a floating frame as the additional vibration. The two vibrate relative to each other. The elastic polyurethane screen plate is installed on the crossbeams of the fixed frame and the floating frame at both ends, which expands and contracts to make the screen surface reach a high acceleration, thus preventing the screen from clogging.

[0004] To improve the screening precision and efficiency of materials, banana-shaped tension screens with double-layer screens have appeared on the market. These screens have a certain effect on improving screening precision and efficiency, but there is still room for optimization. The inability to control the movement speed of materials during the screening process can lead to incomplete screening.

[0005] Therefore, this application provides a novel double-layer banana tension screen to meet the requirements. Utility Model Content

[0006] The purpose of this application is to provide a novel double-layer banana tension screen, which has an adjustable baffle mechanism in the screen frame to control the movement speed of the material and achieve a thorough screening effect.

[0007] To achieve the above objectives, this application provides the following technical solution: a novel double-layer banana tension screen, comprising a screen body, a screen frame provided on the outside of the screen body, and an upper screen and a lower screen provided in the screen frame;

[0008] Rotating rods are rotatably connected to the sieve frame. There are multiple sets of rotating rods, at least one set of rotating rods is located above the upper sieve, and at least another set of rotating rods is located between the upper sieve and the lower sieve.

[0009] An upper baffle is provided on the rotating rod located above the upper screen, and a lower baffle is provided on the rotating rod located between the upper screen and the lower screen. The upper baffle and the lower baffle are parallel to each other. The upper baffle is used to block the material on the upper screen, and the lower baffle is used to block the material on the lower screen.

[0010] A guide block is provided on one side of the outer wall of the sieve frame, and an adjusting member is slidably connected to the outer wall of the sieve frame. The adjusting member is provided with a guide groove, which is adapted to the guide block, and the adjusting member moves along the guide block.

[0011] The guide block is provided with a screw sleeve, and the adjusting component is provided with a rotating seat. There are two sets of rotating seats, and a screw is rotatably connected between the two sets of rotating seats. The screw is threadedly connected to the screw sleeve, which can adjust and limit the position of the adjusting component.

[0012] Each of the rotating rods has a short rod at one end, and each short rod is connected to the adjusting member. The adjusting member drives all the short rods to rotate synchronously.

[0013] Preferably, there are two sets of rotating rods located above the upper screen and arranged one in front of the other. There are also two sets of rotating rods located between the upper and lower screens and arranged one in front of the other. The axis connecting the two sets of upper rotating rods is parallel to the axis connecting the two sets of lower rotating rods. The axis connecting the two sets of front rotating rods is parallel to the axis connecting the two sets of rear rotating rods. A connecting rod is hinged between the two sets of upper short rods and also between the two sets of lower short rods. The two sets of connecting rods are parallel to each other. The adjusting member is provided with a sliding groove. There are two sets of sliding grooves arranged in parallel, and the connecting rod is slidably connected in each sliding groove. The sliding groove is not parallel to the guide groove.

[0014] Preferably, the side wall of the screen frame is provided with screw holes evenly, and the adjusting member is provided with sliding holes evenly. The sliding holes are oblong holes, and the positions of the sliding holes and the screw holes are matched in size. A bolt is inserted through the sliding hole, and the bolt is adapted to the screw hole so as to fasten the adjusting member to the screen frame.

[0015] Preferably, one end of the screw is provided with a cap, which is a hexagonal prism.

[0016] Preferably, the other end of the screw is provided with a rod head, the rod head is provided with a socket, and a plug rod is slidably connected in the socket.

[0017] In summary, the technical effects and advantages of this utility model are as follows:

[0018] This invention, by setting multiple sets of rotating rods inside the screen frame and cooperating with upper and lower baffles, can prevent material from slipping during the screening process, effectively control the material's movement speed, and extend the screening time, thereby improving the thoroughness and fineness of screening. Simultaneously, through the sliding connection between the adjusting component and the guide block and the threaded connection between the screw and the screw sleeve, the adjusting component can easily drive the connecting rod to move, thereby adjusting the angle and position of the rotating rod, changing the gap of the baffle blocking the material's passage, adapting to different material screening conditions, enhancing the practicality of the double-layer banana-shaped tension screen, and ensuring that the material can not only be accurately separated but also make more full contact with the screen mesh, improving screening accuracy and efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is an enlarged structural diagram of point A in this utility model;

[0022] Figure 3 This is a schematic diagram of the internal cross-sectional structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the frame structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the adjustment key structure of this utility model;

[0025] Figure 6 This is a schematic diagram of the screw structure of this utility model.

[0026] In the diagram: 1. Screening machine body; 2. Screen frame; 3. Upper screen; 4. Lower screen; 5. Rotating rod; 6. Connecting rod; 7. Adjusting component; 8. Screw; 9. Insert rod; 20. Guide block; 21. Screw sleeve; 22. Screw hole; 50. Short rod; 51. Upper baffle; 52. Lower baffle; 70. Guide groove; 71. Rotary seat; 72. Sliding groove; 73. Sliding hole; 80. Bolt cap; 81. Rod head. Detailed Implementation

[0027] 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.

[0028] Example: Reference Figure 1-6 The novel double-layer banana tension screen shown includes a screen body 1, a screen frame 2 on the outside of the screen body 1, and an upper screen 3 and a lower screen 4 in the screen frame 2.

[0029] Rotating rods 5 are rotatably connected in the sieve frame 2. There are four sets of rotating rods 5. Two sets of rotating rods 5 are located above the upper sieve 3, and the other two sets of rotating rods 5 are located between the upper sieve 3 and the lower sieve 4.

[0030] An upper baffle 51 is provided on the rotating rod 5 located above the upper screen 3, and a lower baffle 52 is provided on the rotating rod 5 located between the upper screen 3 and the lower screen 4. The upper baffle 51 and the lower baffle 52 are parallel to each other.

[0031] A guide block 20 is provided on one side of the outer wall of the screen frame 2. An adjusting member 7 is slidably connected to the outer wall of the screen frame 2. The adjusting member 7 is provided with a guide groove 70, which is adapted to the guide block 20. The adjusting member 7 moves along the guide block 20.

[0032] The guide block 20 is provided with a screw sleeve 21, and the adjusting part 7 is provided with a rotating seat 71. There are two sets of rotating seats 71, and a screw 8 is rotatably connected between the two sets of rotating seats 71. The screw 8 is threadedly connected to the screw sleeve 21.

[0033] Each of the rotating rods 5 has a short rod 50 at one end, and the short rods 50 are all connected to the adjusting component 7. The adjusting component 7 drives all the short rods 50 to rotate synchronously.

[0034] As one implementation method in this embodiment, to facilitate the synchronous rotation of all rotating rods 5, such as Figure 1 , Figure 3 As shown, there are two sets of rotating rods 5 located above the upper screen 3, arranged one in front of the other. There are also two sets of rotating rods 5 located between the upper screen 3 and the lower screen 4, arranged one in front of the other. The axis connecting the two sets of upper rotating rods 5 is parallel to the axis connecting the lower rotating rod 5. The axis connecting the two sets of front rotating rods 5 is parallel to the axis connecting the two sets of rear rotating rods 5. A connecting rod 6 is hinged between the two sets of upper short rods 50, and a connecting rod 6 is also hinged between the two sets of lower short rods 50. The two sets of connecting rods 6 are parallel to each other. The adjusting component 7 is provided with a sliding groove 72. There are two sets of sliding grooves 72 arranged in parallel, and a connecting rod 6 is slidably connected in each sliding groove 72. The sliding groove 72 is not parallel to the guide groove 70.

[0035] As one implementation method in this embodiment, to fix the adjusting member 7 to the screen frame 2 and enhance the stability of the adjusting member 7, such as... Figure 2 , Figure 4 , Figure 5 As shown, screw holes 22 are evenly provided on the side wall of the screen frame 2, and sliding holes 73 are evenly provided on the adjusting component 7. The sliding holes 73 are waist-shaped holes, and the positions of the sliding holes 73 and the screw holes 22 are corresponding and matched. A bolt is inserted in the sliding hole 73, and the bolt is adapted to the screw hole 22.

[0036] As one implementation method in this embodiment, to facilitate the rotation of screw 8, such as Figure 2 , Figure 6 As shown, one end of the screw 8 is provided with a cap 80, which is a hexagonal prism.

[0037] As one implementation method in this embodiment, to extend the lever arm of the rotating screw 8, such as... Figure 2 , Figure 6 As shown, the other end of the screw 8 is provided with a rod head 81, and the rod head 81 is provided with a socket, in which a plug rod 9 is slidably connected.

[0038] The working principle of this practical application is as follows: When using the screening machine body 1 for screening, the gap between the upper baffle 51 and the upper screen 3, and the gap between the lower baffle 52 and the lower screen 4 need to be adjusted according to the material type. First, rotate the screw 8. The screw 8 rotates between the rotating seats 71 and moves relative to the screw sleeve 21, causing the guide groove 70 to slide along the guide block 20, thereby moving the adjusting part 7. The sliding groove 72 on the adjusting part 7 drives the connecting rod 6 to move. The connecting rod 6 drives the rotating rod 5 to rotate through the short rod 50, thereby causing the upper baffle 51 and the lower baffle 52 to rotate synchronously, adjusting the gap between the upper baffle 51 and the upper screen 3, and the gap between the lower baffle 52 and the lower screen 4. After adjustment, use bolts to pass through the sliding hole 73 and assemble them on the screw hole 22, and use bolts to fix the adjusting part 7 to the screen frame 2, thereby adjusting the upper baffle 51. 51 is fixed to the lower baffle 52. Then, the screen body 1 is turned on to screen the material. During the screening process, when the material moves along the upper screen 3 and the lower screen 4, the material that bounces up with the screen body 1 will be blocked by the upper baffle 51 and the lower baffle 52, which slows down its falling speed and prolongs its screening time on the upper screen 3 and the lower screen 4, so as to achieve a thorough screening effect. Afterwards, as the screening process continues, all the material is discharged from the screen body 1, and the screening is completed. When it is necessary to adjust the flip angle of the upper baffle 51 and the lower baffle 52, first loosen the bolt, then turn the screw 8 to drive the adjusting part 7 to flip the upper baffle 51 and the lower baffle 52. After the adjustment is completed, tighten the bolt. The bolt cap 80 can be used with a wrench to turn the screw 8, or the insert rod 9 can be used to drive the rod head 81 to rotate, so as to improve the convenience of turning the screw 8.

[0039] The electromechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments; they are common knowledge.

[0040] Components not described in detail in this article are existing technologies.

[0041] 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 novel double-layer banana tension screen, comprising a screen body (1), wherein a screen frame (2) is provided on the outside of the screen body (1), and an upper screen (3) and a lower screen (4) are provided in the screen frame (2), characterized in that: Rotating rods (5) are rotatably connected in the sieve frame (2). There are multiple sets of rotating rods (5). At least one set of rotating rods (5) is located above the upper sieve (3), and at least another set of rotating rods (5) is located between the upper sieve (3) and the lower sieve (4). An upper baffle (51) is provided on the rotating rod (5) located above the upper screen (3), and a lower baffle (52) is provided on the rotating rod (5) located between the upper screen (3) and the lower screen (4). The upper baffle (51) and the lower baffle (52) are parallel to each other. A guide block (20) is provided on one side of the outer wall of the sieve frame (2), and an adjusting member (7) is slidably connected to the outer wall of the sieve frame (2). The adjusting member (7) is provided with a guide groove (70), which is adapted to the guide block (20). The adjusting member (7) moves along the guide block (20). The guide block (20) is provided with a screw sleeve (21), and the adjusting member (7) is provided with a rotating seat (71). There are two sets of rotating seats (71), and a screw (8) is rotatably connected between the two sets of rotating seats (71). The screw (8) is threadedly connected to the screw sleeve (21). One end of each rotating rod (5) is provided with a short rod (50), and each short rod (50) is connected to the adjusting member (7). The adjusting member (7) drives all the short rods (50) to rotate synchronously.

2. The novel double-layer banana tension screen according to claim 1, characterized in that: There are two sets of rotating rods (5) located above the upper screen (3) and arranged in front and behind. There are also two sets of rotating rods (5) located between the upper screen (3) and the lower screen (4) and arranged in front and behind. The axis connecting the two sets of rotating rods (5) above is parallel to the axis connecting the two sets of rotating rods (5) below. The axis connecting the two sets of rotating rods (5) in front is parallel to the axis connecting the two sets of rotating rods (5) behind. A connecting rod (6) is hinged between the two sets of short rods (50) above. A connecting rod (6) is also hinged between the two sets of short rods (50) below. The two sets of connecting rods (6) are parallel to each other. The adjusting member (7) is provided with a sliding groove (72). There are two sets of sliding grooves (72) arranged in parallel. The connecting rod (6) is slidably connected in each sliding groove (72). The sliding groove (72) is not parallel to the guide groove (70).

3. The novel double-layer banana tension screen according to claim 1, characterized in that: The side wall of the sieve frame (2) is uniformly provided with screw holes (22), and the adjusting member (7) is uniformly provided with sliding holes (73). The sliding holes (73) are waist-shaped holes, and the position of the sliding holes (73) and the screw holes (22) are matched in size. A bolt is inserted in the sliding holes (73), and the bolt is adapted to the screw holes (22).

4. The novel double-layer banana tension screen according to claim 1, characterized in that: One end of the screw (8) is provided with a cap (80), which is a hexagonal prism.

5. A novel double-layer banana tension screen according to claim 4, characterized in that: The other end of the screw (8) is provided with a rod head (81), and the rod head (81) is provided with a socket, in which a plug rod (9) is slidably connected.

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