Screening device for recycled concrete preparation

Abstract

The utility model relates to the field of recycled concrete preparation equipment, which comprises a support frame and a sieve plate arranged in the support frame, a movable component is arranged at the bottom of the sieve plate, a plurality of shaking components are arranged on opposite sides of the sieve plate, and the plurality of shaking components are respectively arranged in a plurality of movable grooves arranged on the support frame. The fixing rod is driven by the driving assembly to rotate around the center position of the driving assembly, in the process, when the fixing rod tends to move upwards, the movable frame is extruded to move upwards, the supporting plate and the fixing block are driven to move upwards, the fixing block can collide with the bottom of the sieve plate, and therefore the sieve plate is fixed. The raw materials can be vibrated out of the sieve holes through vibration of the sieve plate, it is guaranteed that the screening process is conducted smoothly, and the screening effect of the sieve plate in long-time use is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of recycled concrete preparation equipment, in particular to a recycled concrete preparation screening device. Background Art

[0002] Recycled concrete is made by crushing, cleaning, and grading discarded concrete blocks, then mixing them with a specific gradation ratio to partially or completely replace natural aggregates like sand and gravel (primarily coarse aggregate). Cement and water are then added to the mix to create new concrete. Its primary raw material is discarded concrete blocks, which originate from industrial sites, construction sites, and demolition sites. Screening is essential for the production of recycled concrete, and recycled concrete screening equipment is primarily used to crush, screen, and process these discarded concrete blocks.

[0003] In the existing recycled concrete preparation and screening device, it usually includes a screening body, a support frame and a filter frame. The screening body is generally a sieve plate, and the sieve plate is usually arranged inside the support frame, and the filter frame is installed above the support frame. When in use, the recycled concrete raw materials enter the sieve plate through the filter frame, and the sieve plate is used to screen this part of the raw materials. A transmission member is usually provided on one side of the sieve plate. The transmission member here is mostly a conveyor belt, which is used to collect the screened recycled concrete raw materials. However, in the use of the existing equipment, during the screening process of the sieve plate, fine sand and gravel in the raw materials will be stuck on the filter holes on the sieve plate, causing the sieve plate to be blocked. During long-term use, the screening effect of the sieve plate will be reduced. Summary of the Invention

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a recycled concrete preparation and screening device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a recycled concrete preparation and screening device: comprising a support frame and a sieve plate arranged inside the support frame, a movable assembly is provided at the bottom of the sieve plate, and a plurality of shaking assemblies are installed on opposite sides of the sieve plate, and the plurality of shaking assemblies are respectively arranged in a plurality of movable grooves provided on the support frame;

[0006] The movable assembly includes a driving assembly, a fixed rod, a movable frame, a support plate and a fixed block. One end of the fixed rod is fixedly connected to a side of the driving assembly at a position offset from the center. A sliding groove is provided on the movable frame. The end of the fixed rod away from the driving assembly is movably set in the sliding groove. The bottom end of the support plate is fixedly connected to one side of the movable frame. The end of the support plate away from the movable frame is fixedly connected to the bottom end of the fixed block. The upper end of the fixed block is in contact with the bottom end of the sieve plate.

[0007] Preferably: the driving assembly includes a motor and a rotating disk, the bottom of the motor is fixedly connected to a support block, the output end of the motor is fixedly connected to one side of the rotating disk, and one end of the fixing rod is fixedly connected to the side of the rotating disk away from the motor.

[0008] Preferably, a drain frame is installed on the support frame, and a transmission component is installed on one side of the support frame.

[0009] Preferably, a guide plate is installed inside the support frame, one end of the support plate passes through the guide plate, and the guide plate is arranged at the bottom of the sieve plate.

[0010] Preferably: the shaking assembly includes a mounting block, a spring and a limiting rod, one side of the mounting block is fixedly connected to one side of the sieve plate, the side of the mounting block away from the sieve plate is movably arranged in the movable groove, the limiting rod passes through the mounting block, the opposite ends of the limiting rod are respectively fixedly connected to the opposite inner walls of the movable groove, the upper end of the mounting block is fixedly connected to the bottom end of the spring, and the end of the spring away from the mounting block is fixedly connected to the inner upper side of the movable groove.

[0011] Preferably, an annular fixing groove for sliding the fixing rod is provided on one side of the inner portion of the support frame.

[0012] The utility model has the following beneficial effects:

[0013] 1. Compared with the prior art, this recycled concrete preparation and screening device is equipped with a fixed rod, a movable frame, a support plate and a fixed block, and the fixed rod is driven to rotate around the center position of the drive assembly by a driving assembly. During this process, when the fixed rod tends to move upward, it will squeeze the movable frame to move upward, which will drive the support plate and the fixed block to move upward, so that the fixed block can collide with the bottom of the screen plate. The vibration of the screen plate can vibrate the raw materials out of the sieve holes, ensuring the smooth progress of the screening process and the screening effect of the screen plate during long-term use.

[0014] 2. The vibration of the screen plate makes the concrete particles more evenly distributed on the screen surface, thereby improving the uniformity of screening, ensuring that the screened concrete particles meet specific particle size requirements and improving the quality of recycled concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an overall diagram of the recycled concrete preparation and screening device proposed in the utility model;

[0016] Figure 2 This is a schematic diagram of the support frame proposed by the utility model;

[0017] Figure 3This is a cross-sectional view of the support frame proposed in the present utility model;

[0018] Figure 4 This is a schematic diagram of the active components proposed in the utility model;

[0019] Figure 5 This is a schematic diagram from another perspective of the active component proposed in the present invention.

[0020] Legend:

[0021] 1. Support frame; 2. Transmission part; 3. Screen plate; 4. Guide plate; 5. Leakage frame; 6. Spring; 7. Fixed slot; 8. Fixed rod; 9. Fixed block; 10. Movable slot; 11. Movable frame; 12. Rotating disk; 13. Motor; 14. Support block; 15. Limit rod; 16. Mounting block; 17. Support plate. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0023] Reference Figure 1-5 , the utility model provides a recycled concrete preparation and screening device: In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: A recycled concrete preparation and screening device: comprising a support frame 1 and a sieve plate 3 arranged inside the support frame 1, a movable component is provided at the bottom of the sieve plate 3, and a plurality of shaking components are installed on opposite sides of the sieve plate 3, and the plurality of shaking components are respectively arranged in a plurality of movable grooves 10 provided on the support frame 1, a leakage frame 5 is installed on the support frame 1, and a transmission member 2 is installed on one side of the support frame 1;

[0024] like Figure 5 As shown, the movable assembly includes a driving assembly, a fixed rod 8, a movable frame 11, a support plate 17 and a fixed block 9. One end of the fixed rod 8 is fixedly connected to one side of the driving assembly at a position deviating from the center. A sliding groove is provided on the movable frame 11. The end of the fixed rod 8 away from the driving assembly is movably set in the sliding groove. The bottom end of the support plate 17 is fixedly connected to one side of the movable frame 11. The end of the support plate 17 away from the movable frame 11 is fixedly connected to the bottom end of the fixed block 9. The upper end of the fixed block 9 is in contact with the bottom end of the sieve plate 3. An annular fixing groove 7 for sliding the fixed rod 8 is provided on one side of the inner side of the support frame 1.

[0025] Specifically, by providing a fixed rod 8, a movable frame 11, a support plate 17 and a fixed block 9, the fixed rod 8 is driven to rotate around the center position of the drive assembly through the driving assembly. During this process, when the fixed rod 8 tends to move upward, it will squeeze the movable frame 11 to move upward, which will drive the support plate 17 and the fixed block 9 to move upward, so that the fixed block 9 can collide with the bottom of the sieve plate 3. The vibration of the sieve plate 3 can vibrate the raw materials out of the sieve holes, ensuring the smooth progress of the screening process and the screening effect of the sieve plate 3 during long-term use.

[0026] The vibration of the screen plate 3 makes the concrete particles more evenly distributed on the screen surface, thereby improving the uniformity of screening, ensuring that the screened concrete particles meet the specific particle size requirements and improving the quality of recycled concrete;

[0027] like Figure 4 As shown, the driving assembly includes a motor 13 and a rotating disk 12, the bottom of the motor 13 is fixedly connected to a support block 14, the output end of the motor 13 is fixedly connected to one side of the rotating disk 12, and one end of the fixed rod 8 is fixedly connected to the side of the rotating disk 12 away from the motor 13, wherein the rotating disk 12 is driven to rotate by the motor 13, and the rotation of the rotating disk 12 can drive the fixed rod 8 to rotate around the center position of the rotating disk 12.

[0028] like Figure 5 As shown, a guide plate 4 is installed inside the support frame 1, and one end of the support plate 17 passes through the guide plate 4. The guide plate 4 is set at the bottom of the screen plate 3. The guide plate 4 is set to collect the screened recycled concrete raw materials;

[0029] like Figure 5 As shown, the shaking assembly includes a mounting block 16, a spring 6 and a limiting rod 15. One side of the mounting block 16 is fixedly connected to one side of the sieve plate 3. The side of the mounting block 16 away from the sieve plate 3 is movably arranged in the movable groove 10. The limiting rod 15 passes through the mounting block 16. The opposite ends of the limiting rod 15 are respectively fixedly connected to the opposite inner side walls of the movable groove 10. The upper end of the mounting block 16 is fixedly connected to the bottom end of the spring 6. The end of the spring 6 away from the mounting block 16 is fixedly connected to the inner upper side of the movable groove 10.

[0030] Among them, during the up and down reciprocating motion of the screen plate 3, the mounting block 16 will be driven to reciprocate up and down inside the movable groove 10. During this process, the spring 6 will be continuously stretched and then retracted. During the stretching and retraction process, the spring 6 can store and release energy. When the screen plate 3 moves downward, the spring 6 is stretched and stores energy; when the screen plate 3 moves upward, the spring 6 retracts and releases the stored energy, providing additional power for the shaking of the screen plate 3, so that the screen plate 3 can complete an up and down reciprocating motion in a shorter time, thereby increasing the shaking frequency, which further improves the overall screening quality.

[0031] Working principle: When the device is in use, the motor 13 drives the rotating disk 12 to rotate, and the rotation of the rotating disk 12 can drive the fixed rod 8 to rotate around the center position of the rotating disk 12. In this process, when the fixed rod 8 tends to move upward, it will squeeze the movable frame 11 to move upward, and then drive the support plate 17 and the fixed block 9 to move upward, so that the fixed block 9 can collide with the bottom of the sieve plate 3. The vibration of the sieve plate 3 can vibrate these raw materials out of the sieve holes, ensuring the smooth progress of the screening process and the screening effect of the sieve plate 3 when used for a long time.

[0032] During the up and down reciprocating motion of the sieve plate 3, the mounting block 16 will be driven to reciprocate up and down inside the movable groove 10. During this process, the spring 6 will be continuously stretched and then retracted. The spring 6 can store and release energy during the stretching and retraction process. When the sieve plate 3 moves downward, the spring 6 is stretched and stores energy; when the sieve plate 3 moves upward, the spring 6 retracts and releases the stored energy, providing additional power for the shaking of the sieve plate 3, so that the sieve plate 3 can complete an up and down reciprocating motion in a shorter time, thereby increasing the shaking frequency, which further improves the overall screening quality.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A recycled concrete preparation and screening device, characterized by: It comprises a support frame (1) and a sieve plate (3) arranged inside the support frame (1), wherein a movable component is arranged at the bottom of the sieve plate (3), and a plurality of shaking components are installed on opposite sides of the sieve plate (3), and the plurality of shaking components are respectively arranged in a plurality of movable grooves (10) provided on the support frame (1); The movable assembly includes a driving assembly, a fixed rod (8), a movable frame (11), a support plate (17) and a fixed block (9), one end of the fixed rod (8) is fixedly connected to a side of the driving assembly at a position offset from the center, a sliding groove is provided on the movable frame (11), the end of the fixed rod (8) away from the driving assembly is movably set in the sliding groove, the bottom end of the support plate (17) is fixedly connected to one side of the movable frame (11), the end of the support plate (17) away from the movable frame (11) is fixedly connected to the bottom end of the fixed block (9), and the upper end of the fixed block (9) is in contact with the bottom end of the sieve plate (3).

2. The recycled concrete preparation and screening device according to claim 1, characterized in that: The driving assembly comprises a motor (13) and a rotating disk (12), wherein a support block (14) is fixedly connected to the bottom of the motor (13), an output end of the motor (13) is fixedly connected to one side of the rotating disk (12), and one end of the fixing rod (8) is fixedly connected to a side of the rotating disk (12) away from the motor (13).

3. The recycled concrete preparation and screening device according to claim 2, characterized in that: A drain frame (5) is installed on the support frame (1), and a transmission component (2) is installed on one side of the support frame (1).

4. The recycled concrete preparation and screening device according to claim 3, characterized in that: A guide plate (4) is installed inside the support frame (1), one end of the support plate (17) passes through the guide plate (4), and the guide plate (4) is arranged at the bottom of the screen plate (3).

5. The recycled concrete preparation and screening device according to claim 4, characterized in that: The shaking assembly includes a mounting block (16), a spring (6) and a limiting rod (15), one side of the mounting block (16) is fixedly connected to one side of the sieve plate (3), the mounting block (16) is movably arranged in the movable groove (10) away from the side of the sieve plate (3), the limiting rod (15) passes through the mounting block (16), the opposite ends of the limiting rod (15) are respectively fixedly connected to the opposite inner side walls of the movable groove (10), the upper end of the mounting block (16) is fixedly connected to the bottom end of the spring (6), and the end of the spring (6) away from the mounting block (16) is fixedly connected to the inner upper side of the movable groove (10).

6. The recycled concrete preparation and screening device according to claim 5, characterized in that: An annular fixing groove (7) is provided on one side of the interior of the support frame (1) for sliding the fixing rod (8).

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