Suspension type density screening device
By designing a suspended density screening device, the efficient screening of materials is achieved by using wind force and swing mechanisms, the problems of high noise and easy blockage of screen holes in the prior art are solved, and the screening efficiency and service life of the equipment are improved.
Patent Information
- Application Number
- CN202420456185.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-08
AI Technical Summary
The existing screening machines produce large noise during the screening process, and the screen holes of the screening net are easily blocked by materials, which affects the screening effect.
A suspended density screening device is designed to generate wind force to exhaust through the ventilation holes and air guide strips, blow lighter materials, and swing the heavier materials upwards through the swing of the windmill bed, which is discharged through the light and heavy material outlets respectively, and at the same time, prevent blockage through the design of the top column and the ventilation hole.
It effectively reduces the generation of noise, extends the service life of the screening network, and improves the screening efficiency of materials.
Smart Images
Figure CN222568430U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screening, in particular to a suspended density screening device. Background Art
[0002] The process of separating bulk materials into different particle sizes through one or more layers of screens is called screening. Screening machines use the relative movement between bulk materials and the screen surface to allow some particles to pass through the screen holes, and separate materials such as sand, gravel, and crushed stone into different grades according to particle size. The screening process of a screening machine is generally continuous. After the screened raw materials are fed to the screening machine (referred to as the sieve), materials smaller than the size of the screen holes pass through the screen holes, which are called undersize products; materials larger than the size of the screen holes are continuously discharged from the screen surface, which are called oversize products.
[0003] 1. Most of the existing sorting machines use vibrating screens to sort materials. When sorting materials, they will generate a lot of noise due to vibration. If workers work in the noise for a long time, their health will be affected.
[0004] 2. The material is rolled and screened in the net. Due to the different sizes of the materials, the materials will affect the screening holes of the screening net. As time goes by, the screening holes of the screening net will be gradually blocked, thereby affecting the screening effect of the materials. Utility Model Content
[0005] The purpose of the utility model is to provide a suspended density screening device to solve the above-mentioned problems in the prior art.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a suspended density screening device, comprising a frame, a dust removal box is fixed on the upper end of the frame, a windmill swing bed is arranged inside the frame, a guide tube is fixed on the upper end of the windmill swing bed and is connected to the dust removal box, the front end and the rear end of the windmill swing bed are respectively rotatably connected to two symmetrical connecting rods, one end of the connecting rod is rotatably connected to the windmill swing bed, and the other end of the connecting rod is rotatably connected to the frame, the front end and the rear end of the windmill swing bed are respectively rotatably connected to one end of two connecting rods, and the other end of the two connecting rods is rotatably connected to the frame, a light material outlet is fixed to the left end of the windmill swing bed, and a heavy material outlet is fixed to the right end of the windmill swing bed;
[0007] A sieve plate is slidably connected to the interior of the windmill swing bed, and an upper end of the sieve plate is symmetrically provided with an air guide strip fixed to the windmill swing bed, an anti-blocking plate fixedly connected to the windmill swing bed is provided below the sieve plate, and a fan blade rotatably connected to the frame is provided below the anti-blocking plate, and an elongated air hole corresponding to the air guide strip is provided on the upper end of the sieve plate, and a plurality of ventilation holes are provided on the upper end of the sieve plate, a plurality of baffles are fixed to the upper end of the sieve plate, a plurality of top columns corresponding to the ventilation holes are fixed to the upper end of the anti-blocking plate, and a plurality of through holes are provided on the outer wall of the top column along its circumference, and one end of a spring is fixed to the four corners of the upper end of the anti-blocking plate, and the other end of the spring is fixedly connected to the sieve plate;
[0008] A first motor and a second motor are fixed to the inner wall of the frame, wherein the first motor is rotatably connected to the fan blade, and the second motor is rotatably connected to the two connecting rods.
[0009] Preferably, an adjustment plate is slidably connected to the center of the guide tube, one end of a round rod is fixed to the right end of the adjustment plate, and a pull ring is fixed to the other end of the round rod.
[0010] Preferably, the first motor is fixedly connected to the frame by bolts, a pulley is fixed to the output end of the first motor, a pulley is fixed to the front end of the fan blade, and the first motor is connected to the fan blade via a belt and a pulley.
[0011] Preferably, the second motor is fixedly connected to the frame by bolts, a pulley is fixed to the output end of the second motor, one end of the second connecting rod is rotatably connected to the windmill swing bed, the other end of the second connecting rod is rotatably connected to the frame through a rotating shaft, the rotating shaft is fixedly connected to the second connecting rod, a pulley is fixedly connected to the rotating shaft, and the second motor is connected to the rotating shaft of the second connecting rod through a pulley and a belt.
[0012] Preferably, the cross section of the air guide strip is L-shaped, the upper end of the air guide strip is located in the same horizontal plane as the inner wall of the windmill swing bed and is fixedly connected, and a plurality of through holes are opened along the long sides of the two opposite sides of the air guide strips.
[0013] Preferably, the width of the fan blade is smaller than the width of the windmill swing bed, and the top column is funnel-shaped with a closed narrow end.
[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0015] 1. The wind is generated by the fan blades and exhausted through the ventilation holes and the through holes on the upper end of the wind guide strips, which is conducive to blowing up the lighter materials on the upper end of the screen plate, and the lighter materials are discharged from the light material outlet. The windmill swing bed is driven to swing by the second motor and the second connecting rod, so that the heavier materials on the upper end of the windmill swing bed are lifted and gradually moved to the heavy material outlet and discharged through the heavy material outlet, thereby realizing material screening and reducing noise generation.
[0016] 2. The one-to-one correspondence between the top column and the ventilation hole facilitates the insertion of the top column into the ventilation hole to prevent the ventilation hole from being blocked. At the same time, a through hole is opened on the circumference of the top column. After the top column passes through the ventilation hole, the wind generated by the fan blade blows out from the through hole to blow away the material around the ventilation hole to prevent the material from blocking the ventilation hole again. The baffle on the upper end of the screen plate is used to block heavier materials to prevent the heavier materials from rolling on the upper end of the screen plate, which will prevent the heavier materials from being discharged. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is the internal overall schematic diagram of the utility model;
[0019] Figure 3 It is a cross-sectional schematic diagram of the windmill swing bed of the utility model;
[0020] Figure 4 It is an overall schematic diagram of the screen plate of the utility model;
[0021] Figure 5 This is an overall schematic diagram of the anti-blocking plate of the utility model;
[0022] Figure 6 It is a schematic diagram of the internal rear view of the utility model;
[0023] Figure 7 This is an overall schematic diagram of the windmill swing bed of the utility model;
[0024] Figure 8 It is a schematic diagram of the interior of the windmill swing bed of the utility model.
[0025] Explanations in the figure: 1. Frame; 2. Windmill swing bed; 3. First motor; 4. Second motor; 101. Dust removal box; 102. Guide tube; 103. Pull ring; 104. Adjustment plate; 201. Light material outlet; 202. Heavy material outlet; 203. Connecting rod; 204. Second connecting rod; 205. Screen plate; 206. Wind guide strip; 207. Anti-blocking plate; 208. Fan blade; 2051. Long strip air hole; 2052. Ventilation hole; 2053. Baffle; 2071. Top column; 2072. Spring; 2073. Through hole. DETAILED DESCRIPTION
[0026] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.
[0027] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0029] See also Figure 1 and Figure 2A suspended density screening device includes a frame 1, a dust removal box 101 is fixed on the upper end of the frame 1, and the dust removal box 101 is an existing device, which will not be described in detail here. The dust removal box 101 is used to remove dust from the material to prevent dust from entering the windmill swing bed 2 for screening and being screened out together with the lighter materials, resulting in more dust in the screened materials, affecting the later use. The windmill swing bed 2 is provided inside the frame 1, and a guide pipe 102 is fixed on the upper end of the windmill swing bed 2 and is connected to the windmill swing bed 2. The dust removal box 101 is connected, and the central sliding connection of the guide tube 102 is provided with an adjusting plate 104, and one end of a round rod is fixed to the right end of the adjusting plate 104, and a pull ring 103 is fixed to the other end of the round rod. The windmill swing bed 2 is connected with the dust removal box 101 through the guide tube 102, which is conducive to introducing the material after dust removal by the dust removal box 101 into the windmill swing bed 2 for screening. By pulling the pull ring 103 and driving the adjusting plate 104 to slide in the guide tube 102, the speed of the material entering the windmill swing bed 2 is adjusted. , to prevent the material from entering the windmill swing bed 2 too fast, thereby affecting the screening effect of the material, the front end and the rear end of the windmill swing bed 2 are respectively rotatably connected to two symmetrical connecting rods 203, one end of the connecting rod 203 is rotatably connected to the windmill swing bed 2, and the other end of the connecting rod 203 is rotatably connected to the frame 1, the front end and the rear end of the windmill swing bed 2 are respectively rotatably connected to one end of the second connecting rod 204, and the other end of the second connecting rod 204 is rotatably connected to the frame 1, and the left end of the windmill swing bed 2 is fixed with a light Material outlet 201, a heavy material outlet 202 is fixed at the right end of the windmill swing bed 2, and lighter materials are discharged through the light material outlet 201, and heavier materials are discharged through the heavy material outlet 202, ensuring that the screened materials are discharged through the corresponding light material outlet 201 and heavy material outlet 202, and the frame 1 and the windmill swing bed 2 are rotationally connected by the connecting rod 203, thereby ensuring the overall swingability of the windmill swing bed 2, and the windmill swing bed 2 is rotationally connected by the second connecting rod 204, so that the second motor 4 can drive the windmill swing bed 2 to swing.
[0030] See also Figure 2 , Figure 3 , Figure 4 and Figure 5The windmill bed 2 is internally slidably connected with a sieve plate 205, and the upper end of the sieve plate 205 is symmetrically provided with an air guide strip 206 fixed on the windmill bed 2, and the cross-section of the air guide strip 206 is L-shaped, and the upper end of the air guide strip 206 is located at the same horizontal plane as the inner wall of the windmill bed 2 and is fixedly connected, and a plurality of holes are opened along the long sides of the two opposite sides of the air guide strips 206, and the end of the sieve plate 205 close to the light material outlet 201 is lower than the light material outlet 201, and the end of the sieve plate 205 close to the heavy material outlet 202 is flush with the heavy material outlet 202, and the end face of the sieve plate 205 close to the light material outlet 201 is set lower to prevent the heavier material on the upper end of the sieve plate 205 from rolling and then being discharged through the light material outlet 201, affecting the screening effect, The air guide strip 206 is set to an L shape, so that an air guide duct is formed between the air guide strip 206 and the windmill swing bed 2. The wind is discharged through the holes on the air guide strip 206 to blow up the lighter materials, thereby improving the screening efficiency. At the same time, the air guide strip 206 is set at the upper end of the sieve plate 205 and is fixedly connected to the windmill swing bed 2 to prevent the sieve plate 205 from detaching from the windmill swing bed 2 when it swings. An anti-blocking plate 207 fixedly connected to the windmill swing bed 2 is provided below the sieve plate 205. A fan blade 208 rotatably connected to the frame 1 is provided below the anti-blocking plate 207. The width of the fan blade 208 is smaller than the width of the windmill swing bed 2. The rotation of the fan blade 208 generates wind force, which is conducive to blowing up the lighter materials and realizing the screening of the materials. The width of the fan blade 208 is set to be smaller than the width of the windmill swing bed 2. The width of the swing bed 2 ensures that the fan blades 208 are not affected by the swing of the windmill swing bed 2. The top column 2071 is funnel-shaped and has a closed narrow end. The upper end of the sieve plate 205 is provided with a long strip of wind holes 2051 corresponding to the wind guide strip 206. The upper end of the sieve plate 205 is provided with a plurality of ventilation holes 2052. The upper end of the sieve plate 205 is fixed with a plurality of baffles 2053. By arranging the baffles 2053 at the upper end of the sieve plate 205, heavier materials are prevented from rolling on the upper end of the sieve plate 205, thereby preventing the heavier materials from being discharged. The upper end of the anti-blocking plate 207 is fixed with a plurality of top columns 2071 corresponding to the ventilation holes 2052 one by one. The outer wall of the top column 2071 is provided with a plurality of through holes 207 along its circumference. 3. One end of a spring 2072 is fixed to the four corners of the upper end of the anti-blocking plate 207, and the other end of the spring 2072 is fixedly connected to the sieve plate 205. When the windmill swing bed 2 is swinging back and forth, the material on the upper end of the sieve plate 205 is lifted up, and at the same time, the sieve plate 205 is slidably connected to the windmill swing bed 2 to move up and down. When the sieve plate 205 moves down, the top column 2071 on the anti-blocking plate 207 will overlap and penetrate the ventilation hole 2052, and push out the material stuck in the ventilation hole 2052 to prevent the material from blocking the ventilation hole 2052, thereby affecting the air outlet effect of the sieve plate 205, resulting in reduced screening efficiency. After the top column 2071 pushes out the material blocked in the ventilation hole 2052, the wind generated by the fan blade 208 is discharged from the through hole 2073.The material around the ventilation hole 2052 is blown away to prevent the material from continuing to block the ventilation hole 2052 after the top column 2071 moves away from the ventilation hole 2052. The spring 2072 is compressed after the screen plate 205 moves down. The spring 2072 needs to be restored after being compressed, which will lift up the screen plate 205 and lift up the material on the upper end of the screen plate 205 for screening, thereby improving the screening efficiency of the device.
[0031] See also Figure 6 , Figure 7 and Figure 8 The inner wall of the frame 1 is fixed with a first motor 3 and a second motor 4, the first motor 3 is rotatably connected to the fan blade 208, the second motor 4 is rotatably connected to the second connecting rod 204, the first motor 3 is fixedly connected to the frame 1 by bolts, a pulley is fixed to the output end of the first motor 3, a pulley is fixed to the front end of the fan blade 208, the first motor 3 is connected to the fan blade 208 by a belt and a pulley, the first motor 3 rotates to drive the fan blade 208 to generate wind force, thereby ensuring the normal operation of the device, and the size of the wind force generated by the fan blade 208 is different by adjusting the rotation speed of the first motor 3, and different screening effects can be achieved by adjusting the rotation speed of the first motor 3. The second motor 4 is fixedly connected to the frame 1 by bolts, and a pulley is fixed on the output end of the second motor 4. One end of the second connecting rod 204 is rotatably connected to the windmill swing bed 2, and the other end of the second connecting rod 204 is rotatably connected to the frame 1 through a rotating shaft, and the rotating shaft is fixedly connected to the second connecting rod 204, and a pulley is fixedly connected to the rotating shaft. The second motor 4 is connected to the rotating shaft of the second connecting rod 204 through a pulley and a belt. The rotation of the second motor 4 drives the second connecting rod 204 to make the windmill swing bed 2 swing, thereby ensuring that the windmill swing bed 2 lifts the material and ensures the screening of the material. At the same time, the faster the second motor 4 rotates, the faster the windmill swing bed 2 swings, and the higher the screening efficiency.
[0032] When the utility model is used:
[0033] First, the material is passed through the dust removal box 101 for dust removal, and the dust-removed material passes through the guide pipe 102 and enters the upper end of the sieve plate 205 in the windmill swing bed 2;
[0034] Then, the first motor 3 drives the fan blade 208 to rotate so that the fan blade 208 generates wind force, and blows the wind toward the material on the upper end of the sieve plate 205 through the through hole 2073 and the ventilation hole 2052. The second motor 4 drives the windmill swing bed 2 to swing back and forth through the belt and the second connecting rod 204. During the swinging process of the windmill swing bed 2, the material on the sieve plate 205 is lifted up. The lifted material is affected by the wind force, the lighter material is blown up, and the heavier material falls back to the sieve plate 205.
[0035] Next, due to the swing of the windmill swing bed 2, the sieve plate 205 also swings up and down. When the sieve plate 205 moves down, the top column 2071 on the anti-blocking plate 207 will overlap and penetrate the ventilation hole 2052, and push out the material stuck in the ventilation hole 2052 to prevent the material from blocking the ventilation hole 2052, thereby affecting the air outlet effect of the sieve plate 205, resulting in reduced screening efficiency. After the top column 2071 pushes out the material blocked in the ventilation hole 2052, the wind generated by the fan blade 208 is discharged from the through hole 2073 to blow away the material around the ventilation hole 2052, preventing the top column 2071 from moving away from the ventilation hole 2052. The material continues to block the ventilation hole 2052. After the sieve plate 205 moves down, the spring 2072 is compressed. The spring 2072 needs to be restored after being compressed, and the sieve plate 205 will be lifted up, and the material on the upper end of the sieve plate 205 will be lifted up again for screening, thereby improving the screening efficiency of the device. At the same time, a baffle 2053 is set at the upper end of the sieve plate 205 to prevent the heavier material from rolling on the upper end of the sieve plate 205, thereby preventing the heavier material from being discharged. The end face of the sieve plate 205 close to the light material outlet 201 is set lower than the light material outlet 201 to prevent the heavier material on the upper end of the sieve plate 205 from rolling and then being discharged through the light material outlet 201.
[0036] Finally, the lighter materials are discharged from the light material outlet 201 , and the heavier materials are discharged from the heavy material outlet 202 .
[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A suspended density screening device, characterized in that: The invention comprises a frame (1), a dust removal box (101) is fixed on the upper end of the frame (1), a windmill swing bed (2) is arranged inside the frame (1), a guide tube (102) is fixed on the upper end of the windmill swing bed (2) and is communicated with the dust removal box (101), the front end and the rear end of the windmill swing bed (2) are respectively rotatably connected to two symmetrical connecting rods (203), one end of the connecting rod (203) is rotatably connected to the windmill swing bed (2), and the other end of the connecting rod (203) is rotatably connected to the frame (1), the front end and the rear end of the windmill swing bed (2) are respectively rotatably connected to one end of two connecting rods (204), and the other end of the two connecting rods (204) is rotatably connected to the frame (1), the left end of the windmill swing bed (2) is fixed with a light material outlet (201), and the right end of the windmill swing bed (2) is fixed with a heavy material outlet (202); The windmill swing bed (2) is internally slidably connected with a sieve plate (205); an upper end of the sieve plate (205) is symmetrically provided with an air guide strip (206) fixed to the windmill swing bed (2); an anti-blocking plate (207) fixedly connected to the windmill swing bed (2) is provided below the sieve plate (205); a fan blade (208) rotatably connected to the frame (1) is provided below the anti-blocking plate (207); an upper end of the sieve plate (205) is provided with an elongated air hole (2051) corresponding to the air guide strip (206); and the sieve plate (205) is provided with a plurality of air holes (2051) corresponding to the air guide strip (206). 05) is provided with a plurality of ventilation holes (2052), a plurality of baffles (2053) are fixed to the upper end of the sieve plate (205), a plurality of top columns (2071) corresponding to the ventilation holes (2052) are fixed to the upper end of the anti-blocking plate (207), a plurality of through holes (2073) are provided on the outer wall of the top column (2071) along its circumference, one end of a spring (2072) is fixed to the four corners of the upper end of the anti-blocking plate (207), and the other end of the spring (2072) is fixedly connected to the sieve plate (205); A first motor (3) and a second motor (4) are fixed to the inner wall of the frame (1); the first motor (3) is rotationally connected to the fan blade (208), and the second motor (4) is rotationally connected to the second connecting rod (204).
2. A suspended density screening device according to claim 1, characterized in that: An adjusting plate (104) is slidably connected to the center of the guide tube (102), one end of a round rod is fixed to the right end of the adjusting plate (104), and a pull ring (103) is fixed to the other end of the round rod.
3. A suspended density screening device according to claim 1, characterized in that: The first motor (3) is fixedly connected to the frame (1) via bolts, a pulley is fixed to the output end of the first motor (3), a pulley is fixed to the front end of the fan blade (208), and the first motor (3) is connected to the fan blade (208) via a belt and a pulley.
4. A suspended density screening device according to claim 1, characterized in that: The second motor (4) is fixedly connected to the frame (1) via bolts, a pulley is fixed to the output end of the second motor (4), one end of the second connecting rod (204) is rotationally connected to the windmill swing bed (2), the other end of the second connecting rod (204) is rotationally connected to the frame (1) via a rotating shaft, the rotating shaft is fixedly connected to the second connecting rod (204), a pulley is fixedly connected to the rotating shaft, and the second motor (4) is connected to the rotating shaft of the second connecting rod (204) via a pulley and a belt.
5. A suspended density screening device according to claim 1, characterized in that: The cross section of the air guide strip (206) is L-shaped, the upper end of the air guide strip (206) is located in the same horizontal plane as the inner wall of the windmill swing bed (2) and is fixedly connected, and a plurality of holes are provided along the long sides of the two air guide strips (206) on opposite sides.
6. A suspended density screening device according to claim 1, characterized in that: The width of the fan blade (208) is smaller than the width of the windmill swing bed (2), and the top column (2071) is funnel-shaped with a closed narrow end.