Concrete recycled aggregate preparation device

Abstract

The utility model relates to concrete production technical field, concretely is a kind of concrete recycled aggregate preparation device, including crushing box, the lower end of crushing box is fixedly connected with screening box body, the inside of screening box body is provided with screening bucket, the surface of screening bucket is provided with multiple groups of screening holes of different aperture, the downside of screening bucket is provided with two groups of cleaning assembly, and cleaning assembly includes support plate, support rod, transmission block, transmission shaft, transmission rod, transmission ring, connecting rod, telescopic link, connecting block, knock block, buffer gasket, positioning sliding sleeve and electric motor;In the process of screening concrete particles by screening bucket, electric motor drives telescopic link to slide up and down, and then drives knock block to slide up and down, knock the surface of screening bucket, make screening bucket vibrate, make the concrete particles that the inside of screening hole is stuck from screening hole, keep the unobstructed of screening hole, and then effectively improve screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of concrete production technology, specifically to a device for preparing recycled concrete aggregate. Background Technology

[0002] With the development of urbanization in my country, the amount of construction waste is increasing year by year. This not only wastes land and resources but also pollutes the environment. Consequently, concrete recycled aggregate preparation devices are used to crush concrete blocks from construction waste, producing small particles that can replace natural aggregates, thus promoting resource recycling. Among these, announcement number CN221816209U discloses a concrete recycled aggregate preparation device, including a crushing box and a screening unit. The crushing box has a fixed jaw plate on its front side wall, and a large eccentric shaft is rotatably connected to its rear end via a bearing. A driven belt is located at the left end of the large eccentric shaft. The outer arc surface of the wheel and the large eccentric shaft are rotatably connected to the through hole at the upper end of the movable jaw plate through the bearing. The lower end of the movable jaw plate is rotatably connected to symmetrically distributed connecting rods through a rotating shaft. The round holes at the rear end of the connecting rods are rotatably connected to a rotating shaft at the lower end of the crushing box. Support feet are provided at the lower ends of the left and right sides of the crushing box. The screening unit includes a sliding column, a screening bucket, and screen holes. The sliding columns are symmetrically arranged at the lower ends of the left and right sides of the crushing box. This concrete recycled aggregate preparation device can screen crushed concrete particles with high screening efficiency and quality, which facilitates the grading and use of recycled aggregates and has good application effect.

[0003] However, in actual use, due to the different shapes of the crushed particles, some particles will get stuck inside the screen holes when being screened, which will cause the screen holes to become blocked and make it impossible to effectively screen the concrete particles, thus reducing the screening efficiency.

[0004] Therefore, it is necessary to invent a concrete recycled aggregate preparation device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a concrete recycled aggregate preparation device to solve the problem that some particles get stuck inside the screen holes, causing screen blockage and making it impossible to effectively screen concrete particles, thus reducing screening efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a concrete recycled aggregate preparation device, comprising a crushing box, a screening box fixedly connected to the lower end of the crushing box, a screening hopper provided inside the screening box, a plurality of screening holes of different diameters provided on the surface of the screening hopper, and two sets of cleaning components provided on the lower side of the screening hopper, the cleaning components comprising a support plate, a support rod, a transmission block, a transmission shaft, a transmission rod, a transmission ring, a connecting rod, a telescopic rod, a connecting block, a striking block, a buffer pad, a positioning sleeve, and an electric motor.

[0007] By adopting the above technical solution, the crushing box is used to crush concrete blocks. The crushed concrete particles fall into the screening hopper, where multiple screening holes screen the crushed concrete particles. During the screening process, the knocking blocks inside the cleaning component knock the screening hopper, causing the screening hopper to vibrate and causing the concrete particles stuck inside the screening holes to come out of the screening holes, keeping the screening holes unobstructed, thereby effectively improving the screening efficiency.

[0008] Optionally, the two ends of the support plate are fixedly connected to the inner walls of the front and rear sides of the screening box, respectively, and two sets of support rods are fixedly connected to the lower surface of the support plate.

[0009] Optionally, the two ends of the transmission rod are rotatably connected to two sets of support rods respectively, and multiple sets of transmission blocks are fixedly connected to the surface of the transmission rod. The transmission shaft is fixedly connected to the end of the transmission block that is opposite to the transmission rod.

[0010] By adopting the above technical solution, the transmission rod rotates between the two sets of support rods, and the transmission rod drives the transmission block to rotate.

[0011] Optionally, the electric motor is fixedly installed on the front surface of the screening box, and the output end of the electric motor passes through the front wall of the screening box and is fixedly connected to the front end of the transmission rod.

[0012] By adopting the above technical solution, the output end of the electric motor drives the transmission rod to rotate.

[0013] Optionally, the transmission ring is rotatably connected to the surface of the transmission shaft, and the connecting rod is fixedly connected to the surface of the transmission ring.

[0014] By adopting the above technical solution, the transmission block drives the transmission ring to rotate through the transmission shaft during rotation, and the transmission ring drives the connecting rod to rotate.

[0015] Optionally, the surface of the support plate is fixedly connected to multiple sets of positioning sleeves, and each set of positioning sleeves is slidably connected to a telescopic rod. The connecting block is fixedly connected to the lower end of the telescopic rod, and the upper end of the connecting rod is rotatably connected to the connecting block.

[0016] By adopting the above technical solution, the connecting shaft cooperates with the connecting rod through the transmission ring, driving the telescopic rod to slide up and down inside the positioning sleeve.

[0017] Optionally, a striking block is fixedly connected to the upper end of the telescopic rod, and a buffer pad is fixedly connected to the upper surface of the striking block.

[0018] By adopting the above technical solution, during the up-and-down sliding of the telescopic rod, the striking block moves up and down to strike the surface of the screening hopper. The buffer pad protects the screening hopper and prevents wear on the surface of the screening hopper.

[0019] Optionally, a conveyor belt is installed on the side of the crushing chamber.

[0020] By adopting the above technical solution, the conveyor belt can easily transport large-volume concrete blocks into the interior of the crushing chamber.

[0021] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0022] In this invention, during the screening of concrete particles using a screening hopper, an electric motor drives a telescopic rod to slide up and down, which in turn drives a striking block to slide up and down, striking the surface of the screening hopper and causing it to vibrate. This causes concrete particles stuck inside the screening holes to detach from the screening holes, keeping the screening holes unobstructed and thus effectively improving screening efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the sieve box of this utility model;

[0025] Figure 3 This is a schematic diagram of the cleaning component structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the telescopic rod structure of this utility model;

[0027] Figure 5 This is a schematic diagram of the transmission block structure of this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Crushing box; 11. Conveyor belt; 2. Screening box; 21. Screening hopper; 22. Screening hole; 3. Cleaning assembly; 31. Support plate; 32. Support rod; 33. Transmission block; 34. Transmission shaft; 35. Transmission rod; 36. Transmission ring; 37. Connecting rod; 38. Telescopic rod; 39. Connecting block; 310. Impact block; 311. Buffer pad; 312. Positioning sleeve; 313. Electric motor. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0031] This utility model provides, for example Figures 1 to 3 The concrete recycled aggregate preparation device shown includes a crushing box 1, a conveyor belt 11 installed on the side of the crushing box 1, a screening box 2 fixedly connected to the lower end of the crushing box 1, a screening hopper 21 arranged inside the screening box 2, a plurality of screening holes 22 of different diameters arranged on the surface of the screening hopper 21, and two sets of cleaning components 3 arranged on the lower side of the screening hopper 21. The cleaning components 3 include a support plate 31, a support rod 32, a transmission block 33, a transmission shaft 34, a transmission rod 35, a transmission ring 36, a connecting rod 37, a telescopic rod 38, a connecting block 39, a striking block 310, a buffer pad 311, a positioning sliding sleeve 312, and an electric motor 313. The electric motor 313 is fixedly installed on the front surface of the screening box 2.

[0032] The crushing chamber 1 is equipped with a jaw crushing module (jaw crushing module is existing technology and will not be described in detail here). During the preparation process, the concrete blocks are transported to the inside of the crushing chamber 1 by the conveyor belt 11. At this time, the jaw crushing module inside the crushing chamber 1 crushes the concrete aggregate. The crushed concrete particles fall into the inside of the screening chamber 2. At this time, the screening hopper 21 screens the concrete particles. Particles of different diameters fall through the screening holes 22 of different diameters, thus classifying the concrete particles.

[0033] At the same time, while screening concrete particles, the cleaning component 3 is activated. The striking block 310 in the cleaning component 3 continuously strikes the surface of the screening hopper 21, causing the surface of the screening hopper 21 to vibrate up and down, shaking the particles stuck inside the screening holes 22 out of the screening holes 22, keeping the screening holes 22 unobstructed, and effectively improving the screening speed.

[0034] participate Figures 3 to 5 The two ends of the support plate 31 are fixedly connected to the inner walls of the front and rear sides of the screening box 2, respectively. Two sets of support rods 32 are fixedly connected to the lower surface of the support plate 31. The two ends of the transmission rod 35 are rotatably connected to the two sets of support rods 32, respectively. Multiple sets of transmission blocks 33 are fixedly connected to the surface of the transmission rod 35. The transmission shaft 34 is fixedly connected to the end of the transmission block 33 that is away from the transmission rod 35. The output end of the electric motor 313 passes through the front wall of the screening box 2 and is fixedly connected to the front end of the transmission rod 35. The transmission ring 36 is rotatably connected to the surface of the transmission shaft 34. The connecting rod 37 is fixedly connected to the surface of the transmission ring 36. Multiple sets of positioning sleeves 312 are fixedly connected to the surface of the support plate 31. Telescopic rods 38 are slidably connected inside the multiple sets of positioning sleeves 312. The connecting block 39 is fixedly connected to the lower end of the telescopic rod 38. The upper end of the connecting rod 37 is rotatably connected to the connecting block 39. The upper end of the telescopic rod 38 is fixedly connected to the striking block 310. The upper surface of the striking block 310 is fixedly connected to the buffer pad 311.

[0035] Specifically, when the cleaning component 3 cleans the particles stuck in the screening hole 22, the output end of the electric motor 313 drives the transmission rod 35 to rotate. The transmission rod 35 drives multiple sets of transmission blocks 33 on its surface to rotate. The transmission blocks 33 drive the transmission shaft 34 at one end to rotate around the axis of the transmission rod 35, which in turn drives the transmission ring 36 to rotate around the axis of the transmission rod 35. At this time, the transmission ring 36 drives the telescopic rod 38 to slide up and down inside the positioning sleeve 312 through the connecting rod 37, which in turn drives the striking block 310 to slide up and down, striking the screening bucket 21.

[0036] In addition, multiple sets of transmission blocks 33 can be arranged opposite each other on the surface of the transmission rod 35. For example, when the transmission shaft 34 in the first set of transmission blocks 33 rotates to the upper side, the transmission shaft 34 in the second set of transmission blocks 33 rotates to the lower side. This alternating arrangement allows the second set of telescopic rods 38 to slide downwards while the first set of telescopic rods 38 slides upwards, thereby driving multiple sets of striking blocks 310 to alternately strike the screening bucket 21, increasing the striking frequency of the screening bucket 21 and further improving the cleaning effect.

[0037] The working principle of this utility model is as follows: During the screening process of concrete particles in the screening hopper 21, the electric motor 313 drives the telescopic rod 38 to slide up and down, which in turn drives the striking block 310 to slide up and down, striking the surface of the screening hopper 21, causing the screening hopper 21 to vibrate, causing the concrete particles stuck inside the screening holes 22 to be released from the screening holes 22, keeping the screening holes 22 unobstructed, and thus effectively improving the screening efficiency.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A concrete recycled aggregate preparation device, comprising a crushing chamber (1), characterized in that: The lower end of the crushing box (1) is fixedly connected to the screening box (2). The screening box (2) is provided with a screening hopper (21). The surface of the screening hopper (21) is provided with a number of screening holes (22) of different diameters. The lower side of the screening hopper (21) is provided with two sets of cleaning components (3). The cleaning components (3) include a support plate (31), a support rod (32), a transmission block (33), a transmission shaft (34), a transmission rod (35), a transmission ring (36), a connecting rod (37), a telescopic rod (38), a connecting block (39), a striking block (310), a buffer pad (311), a positioning sleeve (312), and an electric motor (313).

2. The concrete recycled aggregate preparation device according to claim 1, characterized in that: The two ends of the support plate (31) are fixedly connected to the inner walls of the front and rear sides of the screening box (2), respectively, and two sets of support rods (32) are fixedly connected to the lower surface of the support plate (31).

3. The concrete recycled aggregate preparation device according to claim 2, characterized in that: The two ends of the transmission rod (35) are rotatably connected to two sets of support rods (32), and multiple sets of transmission blocks (33) are fixedly connected to the surface of the transmission rod (35). The transmission shaft (34) is fixedly connected to one end of the transmission block (33) away from the transmission rod (35).

4. The concrete recycled aggregate preparation device according to claim 1, characterized in that: The electric motor (313) is fixedly installed on the front surface of the screening box (2), and the output end of the electric motor (313) passes through the front wall of the screening box (2) and is fixedly connected to the front end of the transmission rod (35).

5. The concrete recycled aggregate preparation device according to claim 1, characterized in that: The transmission ring (36) is rotatably connected to the surface of the transmission shaft (34), and the connecting rod (37) is fixedly connected to the surface of the transmission ring (36).

6. The concrete recycled aggregate preparation device according to claim 1, characterized in that: The surface of the support plate (31) is fixedly connected to multiple sets of positioning sleeves (312), and each set of positioning sleeves (312) is slidably connected to a telescopic rod (38). The connecting block (39) is fixedly connected to the lower end of the telescopic rod (38), and the upper end of the connecting rod (37) is rotatably connected to the connecting block (39).

7. The concrete recycled aggregate preparation device according to claim 1, characterized in that: The upper end of the telescopic rod (38) is fixedly connected to a striking block (310), and the upper surface of the striking block (310) is fixedly connected to a buffer pad (311).

8. The concrete recycled aggregate preparation device according to claim 1, characterized in that: A conveyor belt (11) is installed on the side of the crushing box (1).

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