Gravel crushing and sorting device for road construction
By using U-shaped plates and horizontal plates with anti-clogging components in the crushed stone sorting device to clean the screen holes, the problems of screen plate clogging and short lifespan are solved, achieving efficient sorting and screen plate durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN HIGHWAY ENG GROUP
- Filing Date
- 2025-06-17
- Publication Date
- 2026-05-15
AI Technical Summary
In traditional crushed stone sorting devices, the screen holes of the screen plate are prone to clogging, and the anti-clogging device affects the service life of the screen plate.
The anti-clogging component includes a housing and a U-shaped plate. The U-shaped plate and the cross plate are driven by a drive component to collide with the screen plate, clearing the gravel in the screen holes, avoiding screen hole blockage and reducing screen plate damage.
It effectively reduces screen plate clogging, improves crushed stone sorting efficiency, extends screen plate service life, and prevents screen hole cracks from forming.
Smart Images
Figure CN224237511U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crushed stone sorting technology, specifically to a crushed stone crushing and sorting device for road construction. Background Technology
[0002] In road construction, crushed stone (commonly known as aggregate, aggregate, or gravel) is a crucial material, primarily used to form the base and subbase layers of roads (and sometimes as a subbase). Crushed stone plays a vital role in the strength, durability, drainage, and overall performance of roads. After crushing, the crushed stone needs to be separated into different particle sizes by a sorting device. This sorting device uses sieves to separate the crushed stone into different sizes to meet various construction requirements.
[0003] During the crushed stone sorting process, crushed stones with a similar size to the screen apertures easily clog the screen plates. Traditional manual unclogging methods require machine shutdown, severely impacting efficiency. Patent CN219073552U proposes a solution: a roller shaft is installed below the screen plate, equipped with protrusions. When the screen plate vibrates left and right, it drives the roller shaft to rotate, causing the protrusions to insert into the screen apertures and push out the clogged stones, thus clearing the blockage. However, the repeated insertion and removal of the protrusions from the screen apertures by the rotating shaft generates shear stress, causing cracks to form at the edges of the screen apertures, affecting the service life of the screen plate. Utility Model Content
[0004] This invention addresses the problems of easy clogging of the screen holes on the screen plate during the sorting of crushed stone and the fact that the anti-clogging devices in existing devices can affect the service life of the screen plate. It provides a crushed stone crushing and sorting device for road construction, which can reduce screen plate clogging and improve the crushed stone sorting effect.
[0005] To solve the above problems, the technical solution of this utility model is:
[0006] A crushing and sorting device for road construction includes a base, on which a box with an open top is elastically connected to the upper side. A vibrating motor is installed on the box. A screen plate with a lower left side and a higher right side is installed inside the box. The left end of the screen plate is flush with the upper end of the left side plate of the box. A driving component is installed on the box to drive the screen plate to flip or reset. An anti-blocking component is installed on the lower side of the screen plate. The anti-blocking component includes a shell and a U-shaped plate. The shell is fixedly connected to the middle of the bottom surface of the screen plate through the upper opening. The U-shaped plate is slidably installed inside the shell. The outer bottom of the U-shaped plate is connected to the inner bottom of the shell through a driving spring. Multiple horizontal plates are connected to the upper ends of the front and rear outer surfaces of the U-shaped plate. Each horizontal plate connects to one end of the U-shaped plate through a U-shaped groove opened on the side plate of the shell. A second driving component is installed inside the shell to drive the U-shaped plate and the horizontal plates away from or into the screen plate.
[0007] Furthermore, the driving component includes a driving motor, and the middle of the left and right ends of the sieve plate is rotatably connected to the left and right side plates of the box via a rotating shaft. The left and right ends of the sieve plate slide in contact with the left and right side plates of the box, respectively. The driving motor is fixed on the right side of the outer side of the box, and the output end of the driving motor passes through the right side plate of the box and is connected to the rotating shaft on the right side.
[0008] Furthermore, the inner front and rear sides of the box are provided with opposing arc-shaped grooves, and the front and rear ends of the screen plate slide in contact with the arc-shaped surfaces of the arc-shaped grooves on the same side. The arc-shaped surfaces of the two arc-shaped grooves are on the same circle, and the circles containing the two arc-shaped grooves are concentric with the axis of rotation. A discharge gate is provided on the right side plate of the box below the screen plate, and a guide plate with the left side higher than the right side is provided inside the box below the screen plate. The lower end of the circle containing the two arc-shaped grooves is higher than the upper end of the guide plate.
[0009] Furthermore, the thickness of the horizontal plate is less than the depth of the U-shaped groove; when the U-shaped plate and multiple horizontal plates are in contact with the screen plate, the driving spring is in a semi-compressed state; multiple horizontal plates on the front side of the shell are connected to connecting plate one at the end away from the shell, and multiple horizontal plates on the rear side of the shell are connected to connecting plate two at the end away from the shell.
[0010] Furthermore, the second driving component includes a rotating rod and a driving plate. The rotating rod located inside the U-shaped plate is rotatably connected between the left and right side plates of the housing. The rotating rod is driven to rotate by the second driving motor. A semi-cylinder with a protrusion facing the rotating rod is fixed on the inner bottom of the U-shaped plate. The driving plate is connected to the rotating rod. When the U-shaped plate contacts the screen plate, the radius of the circle where the outer end of the driving plate is located is smaller than the distance from the inner bottom of the U-shaped plate to the rotating rod and larger than the distance from the semi-cylinder to the rotating rod.
[0011] Furthermore, when the outer end of the drive plate contacts the semi-cylinder facing the rotating rod, the drive spring is compressed to its limit.
[0012] The beneficial effects of this utility model through the above technical solution are as follows:
[0013] The vibrating motor drives the housing and screen plate to vibrate, and the screen plate sorts the crushed stones. When it is necessary to clean the crushed stones in the screen holes of the screen plate, the drive motor drives the screen plate to rotate 180 degrees, so that the anti-clogging component is located on the upper side of the screen plate. Under the action of the drive component, the U-shaped plate and the horizontal plate repeatedly collide with the screen plate, and the screen plate is subjected to downward vibration force, which can shake the crushed stones embedded in the screen holes off, making it easier to clean the crushed stones blocking the screen holes, thereby reducing the clogging of the screen holes by crushed stones and facilitating the subsequent crushed stone sorting work. Moreover, the present invention will not cause the screen holes to crack. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2This is a schematic diagram of the connection between the sieve plate and the anti-clogging component of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure connecting the shell, U-shaped plate, and rotating rod of this utility model;
[0017] Figure 4 This is a right-section view of the connection between the shell, U-shaped plate, and rotating rod of this utility model;
[0018] Figure 5 This is a sectional front view of the connection between the box body and the sieve plate of this utility model;
[0019] Figure 6 yes Figure 5 Sectional view at point AA (guide plate hidden).
[0020] The attached diagram is labeled as follows: 1. Base, 2. Vibrating motor, 3. Screen plate, 4. Shell, 5. U-shaped plate, 6. Drive spring, 7. Horizontal plate, 8. U-shaped groove, 9. Support spring, 10. Drive motor one, 11. Rotating shaft, 12. Arc groove, 13. Guide plate, 14. Box body, 15. Connecting plate one, 16. Connecting plate two, 17. Rotating rod, 18. Drive plate, 19. Semi-cylinder, 20. Discharge gate, 21. Drive motor two. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0022] like Figures 1-6As shown, a crushing and sorting device for road construction includes a base 1. A box 14 with an open top is elastically connected to the upper side of the base 1. Columns are connected to the four corners of the top surface of the base 1, and each column is fitted with a supporting spring 9 that connects to the base 1. The upper end of the supporting spring 9 is connected to the box 14. The connection method between the base 1 and the box 14 via the supporting spring 9 is the same as the connection method of the base, supporting spring, and screening box in patent application CN222789811U. A vibration motor 2 is provided on the box 14 to drive its vibration. The connection method between the box 14 and the vibration motor 2 is the same as the connection method of the screening box and vibration motor in patent application CN222789811U. A screen plate 3, lower on the left and higher on the right, is provided inside the box 14. The left end of the screen plate 3 is flush with the upper end of the left side plate of the box 14, and the upper end of the left side plate is lower than the upper end of the right side plate. The box 14 is equipped with a screen plate 3 for driving the vibration of the box 14. A driving component 1 for flipping or resetting the screen plate 3; the screen plate 3 is provided with an anti-blocking component on its lower side, the anti-blocking component includes a housing 4 and a U-shaped plate 5, the housing 4 is a hollow cuboid with an open top, the housing 4 is fixedly connected to the middle of the bottom surface of the screen plate 3 through the upper opening, the upper opening of the housing is not opposite to the screen holes on the screen plate, the housing 4 is set along the length of the screen plate 3, the U-shaped plate 5 is slidably arranged inside the housing 4, the left and right ends and the upper end of the U-shaped plate 5 are open, the front and rear side plates of the U-shaped plate 5 respectively slide in contact with the front and rear side plates of the housing 4, the left and right ends of the U-shaped plate 5 respectively slide in contact with the left and right side plates of the housing 4, the outer bottom of the U-shaped plate 5 is connected to the inner bottom of the housing 4 through a driving spring 6, and multiple horizontal plates 7 are connected to the upper ends of the front and rear outer surfaces of the U-shaped plate 5, each horizontal plate 7 is connected to one end of the U-shaped plate 5 through a U-shaped groove 8 opened on the side plate of the housing 4, the housing 4 is provided with a driving component 2, the driving component 2 is used to drive the U-shaped plate 5 and the horizontal plates 7 away from or collide with the screen plate 3.
[0023] The right side of the left side plate of the box 14 is an inclined surface that slopes to the left at the top. The top left end of the left side plate of the box 14 slopes downward, and the top end of the right side plate of the box 14 slopes to the left. The driving component includes a driving motor 10. The left and right ends of the sieve plate 3 are rotatably connected to the left and right side plates of the box 14 via a rotating shaft 11. The middle parts of the left and right ends of the sieve plate 3 respectively slide in contact with the left and right side plates of the box 14. The driving motor 10 is fixed on the outer right side of the box 14. The output end of the driving motor 10 passes through the right side plate of the box 14 and is connected to the rotating shaft 11 on the right side.
[0024] The front and rear inner sides of the box 14 are provided with opposing arc-shaped grooves 12. The front and rear ends of the screen plate 3 slide in contact with the arc surfaces of the arc-shaped grooves 12 on the same side. The arc surfaces of the two arc-shaped grooves 12 are on the same circle, and the circle containing the two arc-shaped grooves 12 is concentric with the rotating shaft 11. The right side plate of the box 14 below the screen plate 3 is provided with a discharge door 20, which can be opened or closed. The box 14 below the screen plate 3 is provided with a guide plate 13 that is higher on the left and lower on the right. The side of the guide plate 13 is connected to the inner side of the box 14, and the lower end of the circle containing the two arc-shaped grooves 12 is higher than the upper end of the guide plate 13.
[0025] The thickness of the horizontal plate 7 is less than the depth of the U-shaped groove 8; when the U-shaped plate 5 and the multiple horizontal plates 7 are in contact with the sieve plate 3, the driving spring 6 is in a semi-compressed state; the end of each horizontal plate 7 away from the housing 4 is close to the edge of the sieve plate 3, the ends of the multiple horizontal plates 7 on the front side of the housing 4 away from the housing 4 are connected to the connecting plate 15, and the ends of the multiple horizontal plates 7 on the rear side of the housing 4 away from the housing 4 are connected to the connecting plate 26; the horizontal plates, connecting plate 1 and connecting plate 2 are not opposite to the sieve holes on the sieve plate.
[0026] The second driving component includes a rotating rod 17 and a driving plate 18. The rotating rod 17, located inside the U-shaped plate 5, is rotatably connected between the left and right side plates of the housing 4. The rotating rod 17 is driven to rotate by a second driving motor 21, which is fixed on the outer left side of the housing 4. The output end of the second driving motor 21 passes through the left side plate of the housing 4 and connects to the rotating rod 17. A semi-cylinder 19 with a protrusion facing the rotating rod 17 is fixed on the inner bottom of the U-shaped plate 5. The semi-cylinder 19 is arranged along the length of the U-shaped plate 5. The driving plate 18 is connected to the rotating rod 17. When the U-shaped plate 5 contacts the screen plate 3, the radius of the circle where the outer end of the driving plate 18 is located is smaller than the distance from the inner bottom of the U-shaped plate 5 to the rotating rod 17 and larger than the distance from the semi-cylinder 19 to the rotating rod 17.
[0027] When the outer end of the drive plate 18 contacts the semi-cylinder 19 facing the end of the rotating rod 17, the drive spring 6 is compressed to its limit; when the outer end of the drive plate 18 faces the sieve plate 3, there is a gap between the drive plate 18 and the sieve plate 3; the diameter of the circle where the outer end of the drive plate 18 is located is smaller than the distance between the front and rear side plates of the U-shaped plate 5.
[0028] When in use, the discharge gate 20 is closed, the vibrating motor 2 drives the box 14 to vibrate, and the screen plate 3 vibrates with the box 14. The crushed stone is fed into the top right side of the screen plate 3 through the upper opening of the box 14. The crushed stone moves through the screen plate 3, which is lower on the left and higher on the right, and is sorted by the vibrating screen plate 3. That is, the crushed stone smaller than the diameter of the screen hole on the screen plate 3 falls into the box 14 below the screen plate 3 through the screen hole, and the crushed stone larger than the screen hole on the screen plate 3 moves to the left and is fed out. The crushed stone is sorted.
[0029] When it is necessary to clean the crushed stone blocking the screen holes of screen plate 3, after all the crushed stone on the upper side of screen plate 3 is discharged to the left, the vibrating motor 2 stops working, the discharge gate 20 is opened, and the crushed stone in the box 14 is discharged. Then, drive motor 10 drives screen plate 3 to rotate 180 degrees around the central axis of rotating shaft 11. At this time, the anti-clogging component is located on the upper side of screen plate 3. Then drive motor 10 works to drive screen plate 3 to vibrate, and drive motor 21 drives rotating rod 17 to rotate. Rotating rod 17 drives drive plate 18 to rotate. During the rotation of drive plate 18, the outer end of drive plate 18 presses against the arc surface of semi-cylinder 19. Semi-cylinder 19 drives U-shaped plate 5 and horizontal plate 7 to move away from screen plate 3. Drive spring 6 is compressed to its limit. As rotating rod 17 continues to rotate, drive spring 6 is compressed to its limit. After the outer end of the moving plate 18 disengages from the semi-cylinder 19, under the restoring force of the drive spring 6, the U-shaped plate 5 and multiple horizontal plates 7 quickly return to their original positions. Since the drive spring 6 is in a semi-compressed state when the U-shaped plate 5 contacts the screen plate 3, the U-shaped plate 5 and multiple horizontal plates 7 collide with the screen plate 3 when they return to their original positions. Under the continuous rotation of the rotating rod 17, the U-shaped plate 5 and multiple horizontal plates 7 collide with the screen plate 3 multiple times, thereby causing the screen plate 3 to be subjected to downward vibration force multiple times. This can shake off the gravel embedded in the screen holes of the screen plate 3. Moreover, under the combined action of the vibrating screen plate 3, it can further drive the gravel in the screen holes to fall off, thereby cleaning the gravel in the screen holes of the screen plate 3. The cleaned gravel is discharged through the discharge door 20 opened on the box 14.
[0030] After the crushed stone in the screen holes on the screen plate 3 is cleaned, the second drive motor 21 stops working and the discharge gate 20 is closed. The first drive motor 10 drives the screen plate 3 to rotate 180 degrees back to the initial position, and subsequent crushed stone sorting work can be carried out.
[0031] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present utility model without departing from the spirit of the present utility model or the scope of disclosure shall fall within the protection scope of the present utility model.
Claims
1. A crushing and sorting device for road construction, comprising a base (1), wherein a box (14) with an open upper end is elastically connected to the upper side of the base (1), and a vibrating motor (2) is provided on the box (14), characterized in that, The box (14) is equipped with a sieve plate (3) that is lower on the left and higher on the right. The left end of the sieve plate (3) is flush with the upper end of the left side plate of the box (14). The box (14) is equipped with a drive component 1 for driving the sieve plate (3) to flip or reset. The sieve plate (3) is equipped with an anti-blocking component on the lower side. The anti-blocking component includes a shell (4) and a U-shaped plate (5). The shell (4) is fixedly connected to the middle of the bottom surface of the sieve plate (3) through the upper opening. The U-shaped plate (5) is slidably arranged inside the shell (4). The outer bottom of the U-shaped plate (5) is connected to the inner bottom of the shell (4) through a drive spring (6). Multiple horizontal plates (7) are connected to the upper end of the front and rear outer surfaces of the U-shaped plate (5). Each horizontal plate (7) is connected to one end of the U-shaped plate (5) through a U-shaped groove (8) opened on the side plate of the shell (4). The shell (4) is equipped with a drive component 2 for driving the U-shaped plate (5) and the horizontal plates (7) away from or colliding with the sieve plate (3).
2. The crushing and sorting device for road construction stones according to claim 1, characterized in that, The drive component includes a drive motor (10). The middle of the left and right ends of the sieve plate (3) is rotatably connected to the left and right side plates of the box body (14) via a rotating shaft (11). The left and right ends of the sieve plate (3) slide in contact with the left and right side plates of the box body (14) respectively. The drive motor (10) is fixed on the right side of the outer side of the box body (14). The output end of the drive motor (10) passes through the right side plate of the box body (14) and is connected to the rotating shaft (11) on the right side.
3. The crushing and sorting device for road construction stones according to claim 2, characterized in that, The front and rear inner sides of the box (14) are provided with raised arc-shaped grooves (12) facing away from each other. The front and rear ends of the screen plate (3) slide in contact with the arc surface of the arc-shaped groove (12) on the same side. The arc surfaces of the two arc-shaped grooves (12) are on the same circle. The circle where the two arc-shaped grooves (12) are located is concentric with the rotating shaft (11). The right side plate of the box (14) under the screen plate (3) is provided with a discharge gate (20).
4. The crushing and sorting device for road construction stones according to claim 1, characterized in that, The thickness of the horizontal plate (7) is less than the depth of the U-shaped groove (8); when the U-shaped plate (5) and the multiple horizontal plates (7) are in contact with the screen plate (3), the driving spring (6) is in a semi-compressed state; the multiple horizontal plates (7) on the front side of the shell (4) are connected to the connecting plate one (15) at the end away from the shell (4), and the multiple horizontal plates (7) on the rear side of the shell (4) are connected to the connecting plate two (16) at the end away from the shell (4).
5. The crushing and sorting device for road construction stones according to claim 1, characterized in that, The second driving component includes a rotating rod (17) and a driving plate (18). The rotating rod (17) located inside the U-shaped plate (5) is rotatably connected between the left and right side plates of the housing (4). The rotating rod (17) is driven to rotate by the second driving motor (21). A semi-cylinder (19) with a protrusion facing the rotating rod (17) is fixed on the inner bottom of the U-shaped plate (5). The driving plate (18) is connected to the rotating rod (17). When the U-shaped plate (5) contacts the screen plate (3), the radius of the circle where the outer end of the driving plate (18) is located is smaller than the distance from the inner bottom of the U-shaped plate (5) to the rotating rod (17) and larger than the distance from the semi-cylinder (19) to the rotating rod (17).
6. The crushing and sorting device for road construction stones according to claim 5, characterized in that, When the outer end of the drive plate (18) contacts the semi-cylinder (19) facing the end of the rotating rod (17), the drive spring (6) is compressed to its limit.