Screening machine for asphalt production

Abstract

The utility model relates to a material screening machine for asphalt production, which comprises a main frame, a feeding port, a primary screening component, a dust removal component, a blanking cavity and a vibration screening component, the blanking cavity is fixed on the main frame, the feeding port is arranged on the blanking cavity, a feeding port is arranged at the top of the blanking cavity, a discharging port is arranged at the bottom of the blanking cavity, and the primary screening component is arranged on the primary screening component. The discharging port is aligned with the vibration screening assembly below, the primary screening assembly is arranged at the feeding port, the dust removal assembly is arranged on the side wall of the discharging cavity, and when asphalt concrete enters from the feeding port, the asphalt concrete firstly passes through a primary screening net, so that the effect of reducing the discharging speed is achieved, and the dust removal assembly is conveniently matched for dust removal operation; the rotating shaft is driven by the motor to drive the knockout rod to scrape back and forth, asphalt concrete can be prevented from blocking the primary screen, when the motor drives the rotating shaft to rotate, the third driven wheel rotates under the action of the second driven wheel to drive the air duct to rotate and blow air, dust generated in the falling process of asphalt can be blown away and discharged, and dust diffusion and environmental pollution are reduced.

Description

Technical Field

[0001] This utility model relates to the field of road engineering, and in particular to a screening machine for asphalt production. Background Technology

[0002] Asphalt concrete waste is a reusable resource. Asphalt concrete waste contains aggregate particles and asphalt particles of different diameters. Before reusing asphalt concrete waste, it is necessary to use a vibrating screen to screen the aggregate particles and asphalt of different diameters. The vibrating screen in related technologies generally includes a screen box, in which multiple layers of screen mesh are arranged at intervals from top to bottom. The screen mesh openings of the multiple layers of screen mesh decrease in size from top to bottom. The screen box is equipped with a vibrating mechanism to achieve its vibration effect. The vibrating mechanism consists of a motor, a vibrating connection structure, a vibrating screen flywheel, etc., which is a necessary mechanism for existing vibrating screens to achieve vibration.

[0003] The current Chinese utility model patent with patent number "202023332739.2" and patent name "A vibrating screen for asphalt waste" discloses a support frame, a screen box mounted on the support frame, a spring connecting the support frame and the screen box, and a vibration mechanism on the support frame to achieve the vibration effect of the screen box. The vibration mechanism includes a vibrating flywheel rotatably connected to the outer wall of the screen box, a motor fixed to the support frame, and a belt drive structure that transmits the rotation of the motor output shaft to the vibrating flywheel.

[0004] The inventors believe that in actual use, the vibrating screen generates a large amount of dust during the screening of asphalt concrete. Furthermore, since the solution lacks a dust suppression structure, the amount of dust generated by the vibrating screen is relatively large, which endangers the health of the workers. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a screening machine for asphalt production.

[0006] The screening machine for asphalt production provided by this utility model adopts the following technical solution:

[0007] A screening machine for asphalt production includes a main frame, a feeding port, a primary screening component, a dust removal component, a discharge chamber, and a vibrating screening component. The discharge chamber is fixed on the main frame, the feeding port is located on the discharge chamber, the top of the discharge chamber has an inlet, the bottom of the discharge chamber has an outlet, the outlet is aligned with the vibrating screening component below, the primary screening component is located at the inlet, and the dust removal component is located on the side wall of the discharge chamber.

[0008] Optionally, the primary screening assembly includes a motor, a drive wheel, a driven wheel, a rotating shaft, and a primary screening screen. The motor is mounted on the main frame, and the output end of the motor is connected to the drive wheel. The drive wheel and the driven wheel are connected by a belt. The driven wheel is located at the end of the rotating shaft, and four feeding rods are mounted on the rotating shaft. The primary screening screen is semi-circular and is located at the feed inlet.

[0009] Optionally, the dust removal assembly includes a dust removal hood, a second driven wheel, a third driven wheel, a blower shaft, and a blower duct. The second driven wheel is located at the other end of the rotating shaft, and the third driven wheel is located at the end of the blower shaft. The second and third driven wheels are connected by a belt. The blower duct is fixed on the blower shaft and is located inside the dust removal hood. An air outlet is provided inside the dust removal hood, and the air outlet is aligned with the lower part of the primary screen.

[0010] Optionally, the vibrating screening assembly includes a fixed rod, a damper, a screen frame, a connecting shaft, a camshaft, driven wheel four, and driven wheel five. The fixed rod is mounted on the main frame, and the screen frame is connected to the fixed rod via four sets of dampers. A connecting piece is provided at the bottom of the screen frame. One end of the connecting shaft is hinged to the connecting piece, and the other end of the connecting shaft is rotatably connected to a cam on the camshaft. The camshaft is rotatably connected to the bottom of the main frame, and driven wheel four is mounted on one end of the camshaft. Driven wheel five is mounted on the rotating shaft, and driven wheel four and driven wheel five are connected by a belt.

[0011] Optionally, a dust discharge chamber is provided on the side of the feeding chamber away from the dust removal hood, and a dust discharge port is provided below the dust discharge chamber.

[0012] Optionally, the feed inlet is provided with a through slot, a baffle is slidably fitted inside the slot, and a handle is provided on the side wall of the baffle.

[0013] In summary, this utility model has at least one of the following beneficial technical effects:

[0014] 1. When asphalt concrete enters from the feeding port, it first passes through the primary screen, thereby reducing the feeding speed and facilitating dust removal operations in conjunction with the dust removal components. Furthermore, the rotating shaft, driven by the motor, drives the feeding rod to scrape back and forth, which can prevent the asphalt concrete from clogging the primary screen. When the motor drives the rotating shaft to rotate, the driven wheel three rotates under the action of the driven wheel two, driving the air duct to rotate and blow air, which can disperse and discharge the dust generated during the asphalt falling process, reducing the spread of dust and environmental pollution.

[0015] 2. When the motor is working, driven wheel five drives driven wheel four to rotate, thereby rotating the cam. Since the coupling is connected to the cam of the camshaft, one end of the coupling moves quickly when the camshaft rotates, while the other end of the coupling is hinged to the bottom of the screen frame, thus achieving a vibration effect without the need to add other vibrators, thereby reducing costs and increasing efficiency.

[0016] 3. Setting a movable baffle can improve the sealing effect of the feed inlet, prevent dust from being discharged from the feed inlet, and further improve the dust removal effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a screening machine used in asphalt production.

[0018] Figure 2 This is a partial sectional view of a screening machine used in asphalt production.

[0019] Figure 3 This is a schematic diagram of the other side of a screening machine used in asphalt production.

[0020] Explanation of reference numerals in the attached drawings: 1. Main frame; 2. Feeding port; 3. Primary screening assembly; 31. Motor; 32. Drive wheel; 33. Driven wheel one; 34. Rotating shaft; 35. Primary screening screen; 36. Feeding rod; 4. Dust removal assembly; 41. Dust removal hood; 42. Driven wheel two; 43. Driven wheel three; 44. Blower shaft; 45. Air duct; 46. Air outlet; 5. Feeding chamber; 6. Vibrating screening assembly; 61. Fixed rod; 62. Vibrator; 63. Screen frame; 64. Coupling shaft; 65. Cam shaft; 66. Driven wheel four; 67. Driven wheel five; 7. Dust discharge chamber; 71. Dust discharge port; 8. Baffle. 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.

[0022] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] This utility model discloses a screening machine for asphalt production. (Refer to...) Figure 1-3 A screening machine for asphalt production includes a main frame 1, a feeding port 2, a primary screening component 3, a dust removal component 4, a discharge chamber 5, and a vibrating screening component 6. The discharge chamber 5 is fixed on the main frame 1, the feeding port 2 is set on the discharge chamber 5, the top of the discharge chamber 5 is provided with a feed inlet, the bottom of the discharge chamber 5 is provided with a discharge outlet, the discharge outlet is aligned with the vibrating screening component 6 below, the primary screening component 3 is set at the feed inlet, and the dust removal component 4 is set on the side wall of the discharge chamber 5.

[0025] The primary screening assembly 3 includes a motor 31, a drive wheel 32, a driven wheel 33, a rotating shaft 34, and a primary screen 35. The motor 31 is mounted on the main frame 1, and its output end is connected to the drive wheel 32. The drive wheel 32 and the driven wheel 33 are connected by a belt. The driven wheel 33 is located at the end of the rotating shaft 34, which has four feeding rods 36. The primary screen 35 is semi-circular and located at the feed inlet. The dust removal assembly 4 includes a dust hood 41, a driven wheel 42, a driven wheel 43, a blower shaft 44, and a blower duct 45. The driven wheel 42 is located at the other end of the rotating shaft 34, and the driven wheel 43 is located at the end of the blower shaft 44. The driven wheels 42 and 43 are connected by a belt. The blower duct 45... Fixed on the blower shaft 44, the air duct 45 is set inside the dust collector hood 41, and the dust collector hood 41 is provided with an air outlet 46, which is aligned with the lower part of the primary screen 35. With this design, when the asphalt concrete enters from the feeding port 2, it will first pass through the primary screen 35, thereby reducing the feeding speed and facilitating dust removal operation in conjunction with the dust removal component 4. In addition, the rotating shaft 34 drives the feeding rod 36 to scrape back and forth under the drive of the motor 31, which can prevent the asphalt concrete from clogging the primary screen 35. When the motor 31 drives the rotating shaft 34 to rotate, the driven wheel 3 43 rotates under the action of the driven wheel 2 42, which drives the air duct 45 to rotate and blow air, which can disperse and discharge the dust generated during the asphalt falling process, reducing the diffusion of dust and environmental pollution.

[0026] The vibrating screening assembly 6 includes a fixed rod 61, a damper 62, a screen frame 63, a connecting shaft 64, a cam shaft 65, driven wheels 66 and 67. The fixed rod 61 is mounted on the main frame 1. The screen frame 63 is connected to the fixed rod 61 via four sets of dampers 62. A connecting piece is provided at the bottom of the screen frame 63. One end of the connecting shaft 64 is hinged to the connecting piece, and the other end of the connecting shaft 64 is rotatably connected to a cam on the cam shaft 65. The cam shaft 65 is rotatably connected to the bottom of the main frame 1. Driven wheels 66 and 67 are located at one end of the cam shaft 65. 7 is set on the rotating shaft 34. Driven wheel 4 66 and driven wheel 5 67 are connected by a belt. This design can save energy to the greatest extent. When the motor 31 is working, driven wheel 5 67 drives driven wheel 4 66 to rotate, thereby rotating the cam. Since the connecting shaft 64 is rotatably connected to the cam of the camshaft 65, when the camshaft 65 rotates, one end of the connecting shaft 64 moves quickly, while the other end of the connecting shaft 64 is hinged to the bottom of the screen frame 63. Therefore, a vibration effect can be achieved without the need to add other vibrators, thereby reducing costs and increasing efficiency.

[0027] A dust discharge chamber 7 is provided on the side of the feeding chamber 5 away from the dust collection hood 41. A dust discharge port 71 is provided below the dust discharge chamber 7. The advantage of this design is that it facilitates the unified collection of dust. A through slot is provided on the feeding port, and a baffle 8 is slidably fitted inside the slot. A handle is provided on the side wall of the baffle 8. The movable baffle 8 can improve the sealing effect of the feeding port, prevent dust from being discharged from the feeding port, and further improve the dust collection effect.

[0028] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A screening machine for asphalt production, characterized in that: The utility model provides a kind of vibrating screen, including main frame (1), feeding port (2), preliminary screening component (3), dust removal component (4), blanking cavity (5) and vibrating screen component (6), the blanking cavity (5) is fixed on the main frame (1), the feeding port (2) is arranged on the blanking cavity (5), the blanking cavity (5) top is provided with feed inlet, the blanking cavity (5) bottom is provided with discharge port, the discharge port is aligned with the vibrating screen component (6) below, the feed inlet is provided with the preliminary screening component (3), the dust removal component (4) is arranged in the side wall of blanking cavity (5), the preliminary screening component (3) includes motor (31), driving wheel (32), driven wheel one (33), pivot (34) and preliminary screen (35), the motor (31) is arranged on the main frame (1), the output of motor (31) is connected with driving wheel (32), driving wheel (32) and driven wheel one (33) are connected by belt, driven wheel one (33) is arranged at the end of pivot (34), four beat material poles (36) are arranged on the pivot (34), the preliminary screen (35) is arranged as semicircle, the preliminary screen (35) is arranged at the feed inlet, the dust removal component (4) includes dust removal cover (41), driven wheel two (42), driven wheel three (43), blower shaft (44) and air cylinder (45), driven wheel two (42) is arranged at the other end of pivot (34), driven wheel three (43) is arranged at the end of blower shaft (44), driven wheel two (42) and driven wheel three (43) are connected by belt, the air cylinder (45) is fixed on the blower shaft (44), the air cylinder (45) is arranged in the dust removal cover (41), the dust removal cover (41) is provided with air outlet (46), the air outlet (46) is aligned below the preliminary screen (35).

2. The screening machine for asphalt production according to claim 1, characterized in that: The vibrating screen component (6) includes fixed rod (61), shock absorber (62), screen frame (63), connecting shaft (64), camshaft (65), driven wheel four (66) and driven wheel five (67), the fixed rod (61) is arranged on the main frame (1), the screen frame (63) is connected on the fixed rod (61) by four groups of shock absorber (62), the screen frame (63) bottom is provided with connecting piece, one end of the connecting shaft (64) is hinged with the connecting piece, the other end of the connecting shaft (64) is rotatably connected with the cam (65) on the camshaft (65), the camshaft (65) is rotatably connected at the bottom of the main frame (1), one end of the camshaft (65) is provided with the driven wheel four (66), the driven wheel five (67) is arranged on the pivot (34), the driven wheel four (66) and the driven wheel five (67) are connected by belt.

3. The screening machine for asphalt production according to claim 2, characterized in that: The blanking cavity (5) is provided with dust exhaust cavity (7) on the side away from dust removal cover (41), and the dust exhaust cavity (7) is provided with dust exhaust port (71) below.

4. The screening machine for asphalt production according to claim 1, characterized in that: The feeding inlet is provided with a through slot, and a baffle (8) is slidingly fitted in the slot. The side wall of the baffle (8) is provided with a handle.

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