An asphalt concrete vibrating screen

Abstract

The utility model discloses an asphalt concrete vibrating screening machine, concretely relates to vibrating screening machine technical field, including mobile base, the mobile base top is equipped with the top plate, is connected with a plurality of even distribution's air spring shock damper between the top plate and mobile base, the vibration motor is fixed with evenly in the top plate bottom both sides, the top plate top is hinged with the screening box, is fixed with the rotary rod in the screening box, is equipped with the connecting plate on the rotary rod, the connecting plate rear end is connected with the screen plate, the screen plate top rear side is fixed with the limit plate. The utility model discloses by adopting vibrating screening mode processing asphalt concrete raw materials, and the screening efficiency is high, and the impact of air spring shock damper buffer vibration to mobile base is configured, and the overall stability is improved significantly, in addition, the screening box and screen plate are all designed as the structure that can overturn, and the staff is convenient to the quick washing of residual asphalt concrete raw materials, and the cleaning operation process is greatly simplified, and the maintenance convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screen technology, and more specifically to an asphalt concrete vibrating screen. Background Technology

[0002] Asphalt concrete, also known as asphalt concrete, is a mixture made by artificially selecting mineral aggregates with a certain gradation, such as crushed stone or crushed gravel, stone chips or sand, and mineral powder, and mixing them with a certain proportion of road asphalt materials under strict control conditions. In the process of preparing asphalt concrete, the raw materials (aggregates) need to be screened. Therefore, a vibrating screen is required. The vibrating screen separates the raw materials (such as crushed stone and manufactured sand) into several particle size grades that meet the design requirements through vibration and screens with different aperture sizes, ensuring the purity and proportion of aggregates of each particle size are accurate.

[0003] For example, a vibrating screen for asphalt concrete with prior art publication number CN219442418U is equipped with a telescopic hose, which is used to connect to the screen box through a spiral tube and a connecting pipe, and directly transport the asphalt concrete to be screened into the screen box. This eliminates the need for manual use of tools such as shovels or buckets to transport materials into the screen box, saving manpower and improving transfer and screening efficiency.

[0004] However, the existing technology described above still has the following problems: after the vibrating screen finishes working, some asphalt concrete raw materials remain inside and on the screen plate. However, disassembling the screen requires a lot of time, making cleaning very time-consuming and laborious, thus affecting the screening efficiency. Based on this, the present invention provides an asphalt concrete vibrating screen with high screening efficiency and easy cleaning. Utility Model Content

[0005] To overcome the aforementioned deficiencies in the prior art, this utility model provides an asphalt concrete vibrating screen, which processes asphalt concrete raw materials using a vibrating screening method, resulting in high screening efficiency. Furthermore, by configuring an air spring shock absorber, the impact of vibration on the moving base can be effectively buffered, significantly improving overall stability. In addition, both the screening box and the screen plate are designed to be flip-up, facilitating quick rinsing of residual asphalt concrete raw materials by workers, greatly simplifying the cleaning operation process and improving maintenance convenience, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an asphalt concrete vibrating screen, comprising a movable base, a top plate on the top of the movable base, a plurality of evenly distributed air spring shock absorbers connected between the top plate and the movable base, a vibrating motor fixed on both sides of the bottom of the top plate, a screening box hinged to the top of the top plate, a rotating rod fixed inside the screening box, a connecting plate sleeved on the rotating rod, a screen plate connected to the rear end of the connecting plate, a limiting plate fixed to the rear side of the top of the screen plate, the limiting plate being fixed to the screening box by two first bolts, and a buffer assembly on the top of the top plate.

[0007] In a preferred embodiment, the buffer assembly includes a rubber airbag installed on the top of the top plate, with multiple pull ropes connecting the top of the rubber airbag to the bottom of the screening box, an air nozzle connected to the bottom of the rubber airbag, the bottom end of the air nozzle penetrating through the bottom of the top plate, a groove being provided on the rear side of the bottom of the screening box, and an alarm being fixedly embedded at the rear end of the screening box, which can emit sound in real time to prevent workers from being injured by the screening box.

[0008] In a preferred embodiment, a fixing plate is fixedly provided on both sides of the top of the top plate, and a second bolt is threadedly connected to each of the two fixing plates. The fixing plate is detachably connected to the screening box by the second bolt, and the screening box is fixed to the fixing plate by the second bolt, thereby further improving the stability of the screening box.

[0009] In a preferred embodiment, both the front end of the screening box and the front end of the movable base are detachably connected to rubber baffles. The rubber baffles act as shields in front of the movable base and the top plate, thereby preventing wastewater from falling directly into the movable base when cleaning the screening box and the screen plate.

[0010] In a preferred embodiment, support bars are fixedly provided on both inner walls of the screening box, and the tops of the two support bars are in contact with the bottom of the screen plate to support the screen plate for stable screening.

[0011] In a preferred embodiment, handrails are fixedly provided on both sides of the top of the screening box and on the top of the limiting plate, and the handrails on the top of the limiting plate are located in front of the two first bolts. The handrails facilitate the workers to flip the screening box and the screen plate.

[0012] In a preferred embodiment, the top of the mobile base is threaded with a plurality of evenly distributed threaded rods, each threaded rod having its bottom end extending through the bottom of the mobile base and fixedly fitted with a foot pad. When the operator moves the entire device to the designated position, the threaded rod is screwed to make the foot pad at its bottom contact the ground, which can improve the stability of the mobile base to a certain extent.

[0013] The technical effects and advantages of this utility model are as follows: 1. This utility model uses a vibrating screen to process asphalt concrete raw materials, which has high screening efficiency. By configuring an air spring shock absorber, the impact of vibration on the moving base can be effectively buffered, significantly improving the overall stability. In addition, both the screening box and the screen plate are designed to be flip-up, which makes it easy for workers to quickly wash the residual asphalt concrete raw materials, greatly simplifying the cleaning operation process and improving the convenience of maintenance.

[0014] 2. By installing rubber airbags at the top of the top plate, the rubber airbags can play a buffering role at the bottom of the screening box, preventing the screening box from vibrating due to excessive falling speed, which would affect the firmness of its connection with the top plate. At the same time, the equipped alarm can sound an alarm in real time to remind the staff to pay attention and avoid being injured by the screening box, thereby improving operational safety.

[0015] 3. The displacement of the entire device can be adjusted by moving the base, which makes it easy for operators to flexibly adjust the working position of the equipment and significantly improves the ease of operation. At the same time, the rubber baffles at the front of the base and the top plate can effectively reduce the degree of material contamination on the base. In addition, the threaded rod and foot pad structure of the base can further enhance the stability of the equipment during operation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the flipping of the screening box of this utility model; Figure 4 This is a bottom view of the top plate of this utility model; Figure 5 This is a schematic diagram of the sieve plate flipping of this utility model; Figure 6 This is a side sectional view of the screening box of this utility model.

[0017] The attached diagram is labeled as follows: 1. Movable base; 2. Top plate; 3. Air spring shock absorber; 4. Vibration motor; 5. Screening box; 6. Rotating rod; 7. Connecting plate; 8. Screen plate; 9. Limiting plate; 10. First bolt; 11. Fixing plate; 12. Second bolt; 13. Rubber baffle; 14. Support bar; 15. Handrail; 16. Threaded rod; 17. Foot pad; 18. Buffer assembly; 181. Rubber airbag; 182. Pull rope; 183. Air nozzle; 184. Groove; 19. Warning device. Detailed Implementation

[0018] 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.

[0019] Refer to the instruction manual appendix Figures 1-6 This utility model provides an asphalt concrete vibrating screen, including a movable base 1, which consists of a plate and four drive wheels. The four drive wheels support the plate for movement, thereby facilitating flexible adjustment of the position of the entire device. The top of the movable base 1 is provided with a top plate 2, and multiple evenly distributed air spring shock absorbers 3 are connected between the top plate 2 and the movable base 1. Specifically, the air spring shock absorbers 3 use the dynamic characteristics of gas to achieve shock absorption by sealing gas in a sealed container. Vibration motors 4 are fixed on both sides of the bottom of the top plate 2. Specifically, each of the vibration motors 4 has a set of adjustable eccentric blocks installed at both ends of the rotor shaft. The excitation force is obtained by relying on the centrifugal force generated by the high-speed rotation of the shaft and the eccentric blocks.

[0020] The top plate 2 is hinged to the top of the screening box 5. The screening box 5 is fixedly provided with a rotating rod 6. A connecting plate 7 is sleeved on the rotating rod 6. The rear end of the connecting plate 7 is connected to the screen plate 8. A limiting plate 9 is fixedly provided on the rear side of the top of the screen plate 8. The limiting plate 9 is fixed to the screening box 5 by two first bolts 10.

[0021] Handrails 15 are fixedly provided on both sides of the top of the screening box 5 and the top of the limiting plate 9. The handrails 15 on the top of the limiting plate 9 are located in front of the two first bolts 10. The handrails 15 make it convenient for workers to flip the screening box 5 and the screen plate 8, making the operation very quick.

[0022] In actual use, the two vibrating motors 4 drive the top plate 2 and the screening box 5 to vibrate. When the asphalt concrete raw material falls from the top of the screening box 5 onto the screen plate 8, the high-frequency vibrating screen plate 8 causes the asphalt concrete raw material to jump, slide and roll, which can improve the screening effect. The raw material after being screened by the screen plate 8 flows out from the front end of the screen plate 8 and the front end of the screening box 5 respectively. In addition, multiple air spring shock absorbers 3 are set between the top plate 2 and the moving base 1, which can reduce the impact on the moving base 1 and thus improve the stability of the moving base 1.

[0023] After processing, the staff first loosens the first bolt 10 between the limiting plate 9 and the screening box 5, then grasps the handle 15 on the limiting plate 9 to drive the screen plate 8 to rotate around the rotating rod 6 inside the connecting plate 7. The screen plate 8 can then be rinsed with water to clean the raw material blocking the screen holes, thus avoiding affecting subsequent screening. At the same time, the staff can also rinse the inside of the screening box 5, and then grasp the handle 15 on the screening box 5 to rotate it, thus facilitating drainage and preventing residual water from clumping with the subsequent asphalt concrete raw materials. The structure is simple and very convenient to use.

[0024] And, as Figure 3 and Figure 4 As shown, a buffer assembly 18 is also provided on the top of the top plate 2. The buffer assembly 18 includes a rubber airbag 181 installed on the top of the top plate 2. Multiple pull ropes 182 are connected between the top of the rubber airbag 181 and the bottom of the screening box 5. An air nozzle 183 is connected to the bottom of the rubber airbag 181. The bottom end of the air nozzle 183 extends through the bottom of the top plate 2. A groove 184 is provided on the rear side of the bottom of the screening box 5. An alarm 19 is fixedly embedded at the rear end of the screening box 5.

[0025] When the staff resets the screening box 5, the rubber airbag 181 on the top of the top plate 2 can act as a buffer at the bottom of the screening box 5 to prevent the screening box 5 from vibrating due to excessive falling speed, which would affect the firmness of its connection with the top plate 2. At the same time, the alarm 19 equipped on the screening box 5 can sound an alarm in real time to remind the staff to pay attention and avoid being injured by the screening box 5, thereby improving operational safety. In addition, when the staff flips the screening box 5, the screening box 5 will pull the rubber airbag 181 through the pull rope 182 to expand it. At this time, the rubber airbag 181 will draw air through the air nozzle 183 to prepare for subsequent use.

[0026] like Figures 1-3 As shown, fixing plates 11 are fixed on both sides of the top of the top plate 2. The two fixing plates 11 are threaded with second bolts 12. The fixing plates 11 are detachably connected to the screening box 5 by the second bolts 12. The screening box 5 is fixed to the fixing plates 11 by the second bolts 12, which can further improve the stability of the screening box 5.

[0027] Both the front end of the screening box 5 and the front end of the mobile base 1 are detachably connected to rubber baffles 13. The rubber baffles 13 act as shields in front of the mobile base 1 and the top plate 2, thereby preventing wastewater from falling directly into the mobile base 1 when cleaning the screening box 5 and the screen plate 8.

[0028] To further improve the stability of the placement of sieve plate 8, such as Figure 5As mentioned above, support bars 14 are fixedly provided on both sides of the inner wall of the screening box 5. The top of the two support bars 14 are in contact with the bottom of the screen plate 8 to support the screen plate 8 for stable screening.

[0029] like Figures 1-3 As shown, multiple evenly distributed threaded rods 16 are threadedly connected to the top of the mobile base 1. The bottom end of each threaded rod 16 extends through the bottom of the mobile base 1 and is fixedly provided with a foot pad 17. When the staff moves the entire device to the designated position, they screw the threaded rod 16 so that the foot pad 17 at its bottom end contacts the ground, which can improve the stability of the mobile base 1 to a certain extent.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. An asphalt concrete vibrating screen, comprising a movable base (1), characterized in that: The top of the mobile base (1) is provided with a top plate (2), and multiple evenly distributed air spring shock absorbers (3) are connected between the top plate (2) and the mobile base (1). Vibration motors (4) are fixed on both sides of the bottom of the top plate (2). The top plate (2) is hinged to a screening box (5), and a rotating rod (6) is fixed inside the screening box (5). A connecting plate (7) is sleeved on the rotating rod (6). A screen plate (8) is connected to the rear end of the connecting plate (7). A limiting plate (9) is fixed on the rear side of the top of the screen plate (8). The limiting plate (9) is fixed to the screening box (5) by two first bolts (10). A buffer assembly (18) is provided on the top of the top plate (2).

2. The asphalt concrete vibrating screen according to claim 1, characterized in that: The buffer assembly (18) includes a rubber airbag (181) installed on the top of the top plate (2). Multiple pull ropes (182) are connected between the top of the rubber airbag (181) and the bottom of the screening box (5). An air nozzle (183) is connected to the bottom of the rubber airbag (181). The bottom end of the air nozzle (183) extends through the bottom of the top plate (2). A groove (184) is provided on the rear side of the bottom of the screening box (5). An alarm (19) is fixedly embedded at the rear end of the screening box (5).

3. The asphalt concrete vibrating screen according to claim 1, characterized in that: The top plate (2) is fixedly provided with fixing plates (11) on both sides of the top. The two fixing plates (11) are threaded with second bolts (12). The fixing plates (11) are detachably connected to the screening box (5) by the second bolts (12).

4. The asphalt concrete vibrating screen according to claim 1, characterized in that: Both the front end of the screening box (5) and the front end of the movable base (1) are detachably connected to rubber baffles (13).

5. The asphalt concrete vibrating screen according to claim 1, characterized in that: The inner walls on both sides of the screening box (5) are fixed with support bars (14), and the tops of the two support bars (14) are in contact with the bottom of the screen plate (8) to support the screen plate (8) for stable screening.

6. The asphalt concrete vibrating screen according to claim 1, characterized in that: Handrails (15) are fixedly provided on both sides of the top of the screening box (5) and the top of the limiting plate (9), and the handrails (15) on the top of the limiting plate (9) are located in front of the two first bolts (10).

7. The asphalt concrete vibrating screen according to claim 1, characterized in that: The top of the movable base (1) is threaded with multiple evenly distributed threaded rods (16), and the bottom end of each threaded rod (16) extends through the bottom of the movable base (1) and is fixedly provided with a foot pad (17).

Images