Gravel crushing device for building construction

Abstract

The invention discloses a building construction sandstone crushing device which comprises a machine body, a stone crushing assembly is installed on the machine body and used for crushing building sandstone, and a discharging assembly is further installed on the machine body and used for conveying crushed sandstone. The machine body is provided with a screening assembly used for screening sand conveyed by the discharging assembly. Gravel is scattered on the surface of the screen plate for screening through the buffering effect of the bearing box and the rotating box, in the whole stone crushing process, the first stone crushing plate and the second stone crushing plate do not make contact with the screen plate, and therefore mechanical damage to the screen plate in the stone crushing process of the stone crushing plates is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of sand and gravel crushing, and particularly to a sand and gravel crushing device for building construction. Background Art

[0002] Due to its good physical and chemical properties, sand and gravel are widely used in construction projects, such as being the main raw material of concrete. With the acceleration of China's economic construction process, its demand is also increasing day by day, and the sand and gravel required in the construction process must be crushed to a certain proportion before it can be applied.

[0003] For example, a sand and gravel crushing device described in the patent number CN113680510B. This sand and gravel crushing device crushes sand and gravel through its designed crushing impact parts, central tip crushing parts, and rotation tip crushing parts arranged in a ring. The crushing effect is the result of the combined action of kinetic energy and potential energy, so it is relatively good. However, its crushing process is directly carried out on the circular sieve plate. Since there are a large number of sieve holes on the circular sieve plate, its own strength is not very high. After a long time of gravel crushing operation, the sieve plate is easily damaged by the impact of the crushing parts for a long time. Summary of the Invention

[0004] The purpose of the present invention is to solve the deficiencies in the prior art and propose a sand and gravel crushing device for building construction.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A sand and gravel crushing device for building construction, including a machine body. A crushing component is installed on the machine body, and the crushing component is used for crushing building sand and gravel. A feeding component is also installed on the machine body, and the feeding component is used for conveying the crushed sand and gravel. A screening component for screening the sand and gravel conveyed by the feeding component is installed on the machine body;

[0007] The crushing component includes a first crushing plate, a second crushing plate, and a driving mechanism. The driving mechanism is used to drive the second crushing plate to move up and down. The first crushing plate is fixedly connected to the side wall of the machine body, and the second crushing plate is slidably arranged inside the machine body;

[0008] The screening component includes a discharge box, a sieve plate, and a vibration mechanism for pushing the sieve plate to vibrate up and down. The sieve plate is slidably arranged inside the discharge box. A receiving column is fixedly connected to the lower end of the sieve plate, a spring is fixedly connected to the lower end of the receiving column, and a receiving plate is fixedly connected to the inner wall of the discharge box. The spring is fixedly connected to the upper end of the receiving plate.

[0009] Preferably, the driving mechanism includes a rotating rod, a first runner, a motor, and a first rotating shaft. The rotating rod is rotatably connected to the first runner. The motor is fixedly connected to the machine body through a bracket. The output shaft of the motor is fixedly connected to the first rotating shaft, and the first rotating shaft is fixedly connected to the center position of the first runner.

[0010] Preferably, the blanking assembly includes a receiving box, a rotating box, and a swinging mechanism for pushing the rotating box to swing. The receiving box is located in the middle of the machine body and is fixedly connected to the first gravel plate and the machine body. The rotating box is located at the lower end of the receiving box.

[0011] Preferably, the vibrating mechanism includes a synchronous belt, a second runner, a second rotating shaft, an incomplete gear, and a second rack. The second rack is fixedly connected to the middle of the lower end of the sieve plate and meshes with the incomplete gear. The second rotating shaft is fixedly connected to the second runner, and the first runner and the second runner are connected by a synchronous belt.

[0012] Preferably, two groups of guide rods are fixedly connected to the upper end of the machine body. Each group of guide rods has two and is arranged in parallel. A connecting platform is fixedly connected to the lower end of the second gravel plate, and the connecting platform slidably penetrates through the guide rods.

[0013] Preferably, a discharge port is fixedly connected to the side wall of the discharge box. A baffle is slidably penetrated through the side wall of the discharge box. A support plate is fixedly connected to the side wall of the discharge box, and an electric push rod is installed on the support plate. The telescopic end of the electric push rod is fixedly connected to the baffle.

[0014] Preferably, the swinging mechanism includes a connecting rod, a first rack, a gear, and a connecting shaft. The connecting shaft is fixedly connected to the outside of the rotating box, the connecting shaft is fixedly connected to the gear, the gear meshes with the first rack, the first rack is fixedly connected to the connecting rod, and the connecting rod is fixedly connected to the connecting platform.

[0015] Preferably, a connecting column is fixedly connected to the inner wall of the discharge box. One end of the connecting column away from the inner wall of the discharge box is fixedly connected to a box body. The incomplete gear and the second rack are located inside the box body, and the incomplete gear is fixedly connected to the second rotating shaft.

[0016] The present invention has the following beneficial effects:

[0017] 1. When the sand and gravel enter the machine body and are crushed by the first gravel plate and the second gravel plate, after passing through the buffering effect of the receiving box and the rotating box, they are scattered on the surface of the sieve plate for screening. During the entire gravel process, neither the first gravel plate nor the second gravel plate contacts the sieve plate, thereby avoiding mechanical damage to the sieve plate during the gravel process of the gravel plate.

[0018] 2. When the sand and gravel enter the rotating box after being crushed, the rotating box swings under the action of the gears to prevent the sand and gravel from accumulating in the rotating box and causing blockage. The rotating box cooperates with the arc screen plate to make the sand and gravel more evenly distributed on the surface of the screen plate.

[0019] 3. The crushed sand and gravel are scattered on the surface of the screen plate for screening. The long-term up and down vibration of the screen plate allows the sand and gravel that meet the aperture of the screen plate to be screened out at the lower end of the discharge box, while the sand and gravel that do not meet the aperture of the screen plate are screened out from the discharge port with the cooperation of the electric push rod and the baffle, preventing large-aperture sand and gravel from accumulating on the surface of the screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of a sand and gravel crushing device for construction proposed by the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the feeding component and the screening component in the present invention;

[0022] Figure 3 It is a schematic diagram of the internal structure of the screening component in the present invention;

[0023] Figure 4 It is a schematic diagram of the external connection structure of the discharge box, the support plate, the baffle, the electric push rod and the discharge port in the present invention;

[0024] Figure 5 for Figure 1 A in the enlarged view;

[0025] Figure 6 It is a schematic diagram of the external connection structure of the synchronous belt, the first rotating wheel, the second rotating wheel, the motor and the first rotating shaft in the present invention.

[0026] In the figure: 1 body, 2 first crushing plate, 3 second rack, 4 second crushing plate, 5 guide rod, 6 rotating rod, 7 connecting platform, 8 connecting column, 9 first rotating wheel, 10 connecting rod, 11 synchronous belt, 12 first rack, 13 gear, 14 receiving box, 15 discharge port, 16 discharge box, 17, second rotating wheel 18, motor 19, first rotating shaft, 20, support plate, 21, rotating box, 22, connecting shaft, 23, baffle, 24, electric push rod, 25, screen plate, 26, receiving column, 27, spring, 28, second rotating shaft, 29, box, 30, receiving plate, 31, incomplete gear. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figures 1 - 6, a building construction sand and gravel crushing device, including a machine body 1, a crushing component is installed on the machine body 1, the crushing component is used to crush building sand and gravel, a feeding component is also installed on the machine body 1, the feeding component is used to convey the crushed sand and gravel, and a screening component for screening the sand and gravel conveyed by the feeding component is installed on the machine body 1.

[0029] The crushing component includes a first crushing plate 2, a second crushing plate 4 and a driving mechanism. The driving mechanism is used to drive the second crushing plate 4 to move up and down. The first crushing plate 2 is fixedly connected to the side wall of the machine body 1, and the second crushing plate 4 is slidably arranged inside the machine body 1. It should be noted that mutually engaging crushing teeth are provided on the relative sides of the first crushing plate 2 and the second crushing plate 4 to crush the passing stones.

[0030] The screening component includes a discharge box 16, a sieve plate 25 and a vibration mechanism for pushing the sieve plate 25 to vibrate up and down. The sieve plate 25 is slidably arranged inside the discharge box 16. A receiving column 26 is fixedly connected to the lower end of the sieve plate 25, a spring 27 is fixedly connected to the lower end of the receiving column 26, and a receiving plate 30 is fixedly connected to the inner wall of the discharge box 16. The spring 27 is fixedly connected to the upper end of the receiving plate 30.

[0031] The driving mechanism includes a rotating rod 6, a first runner 9, a motor 18, a first rotating shaft 19. The rotating rod 6 is rotatably connected to the first runner 9. The motor 18 is fixedly connected to the machine body 1 through a bracket. It should be noted that Figure 1 , the motor 18 can be installed inside the upper side of the machine body 1. The output shaft of the motor 18 is fixedly connected to the first rotating shaft 19, and the first rotating shaft 19 is fixedly connected to the center position of the first runner 9.

[0032] The feeding component includes a receiving box 14, a rotating box 21 and a swinging mechanism for pushing the rotating box 21 to swing. The receiving box 14 is located in the middle of the machine body 1 and is fixedly connected to the first crushing plate 2 and the machine body 1. The rotating box 21 is located at the lower end of the receiving box 14. It should be noted that the lower end of the receiving box 14 is an arc structure to fit the swinging movement of the rotating box 21.

[0033] The vibration mechanism includes a synchronous belt 11, a second runner 17, a second rotating shaft 28, an incomplete gear 31, a second rack 3. The second rack 3 is fixedly connected to the middle of the lower end of the sieve plate 25 and meshes with the incomplete gear 31. The second rotating shaft 28 is fixedly connected to the second runner 17. The first runner 9 and the second runner 17 are connected by a synchronous belt 11 for transmission.

[0034] Two groups of guide rods 5 are fixedly connected to the upper end of the machine body 1. Each group of guide rods 5 has two and is arranged in parallel. A connecting platform 7 is fixedly connected to the lower end of the second crushing plate 4. The connecting platform 7 slidably penetrates through the guide rods 5. It should be noted that the connecting platform 7 can make a reciprocating up and down sliding movement under the guidance of the guide rods 5.

[0035] A discharge port 15 is fixedly connected to the side wall of the discharge box 16. A baffle 23 is slidably penetrated through the side wall of the discharge box 16. A support plate 20 is fixedly connected to the side wall of the discharge box 16. An electric push rod 24 is installed on the support plate 20. The telescopic end of the electric push rod 24 is fixedly connected to the baffle 23. It should be noted that, initially for a period of time, the electric push rod 24 controls the baffle 23 to extend into the discharge box 16. At this time, the sieve plate 25 moves upward and will be blocked by the baffle 23, and the sieve plate cannot rise to the height position of the discharge port 15. After a period of time, when the electric push rod 24 pulls the baffle 23 outward, the baffle 23 no longer blocks the sieve plate 25. At this time, when the sieve plate 25 is pushed upward by the compression spring 27, it will be located above the discharge port 15. At this time, the larger gravel above the sieve plate 25 can slide towards the discharge ports 15 on both sides.

[0036] The swinging mechanism includes a connecting rod 10, a first rack 12, a gear 13, and a connecting shaft 22. The connecting shaft 22 is fixedly connected to the outside of the rotating box 21. The connecting shaft 22 is fixedly connected to the gear 13. The gear 13 meshes with the first rack 12. The first rack 12 is fixedly connected to the connecting rod 10. The connecting rod 10 is fixedly connected to the connecting platform 7.

[0037] A connecting column 8 is fixedly connected to the inner wall of the discharge box 16. One end of the connecting column 8 far from the inner wall of the discharge box 16 is fixedly connected to a box body 29. An incomplete gear 31 and a second rack 3 are located inside the box body 29. The incomplete gear 31 is fixedly connected to the second rotating shaft 28.

[0038] In the present invention, first, the motor 18 is started. The output shaft of the motor 18 drives the first rotating shaft 19 to rotate clockwise. The first rotating shaft 19 drives the first runner 9 to rotate clockwise. Both ends of the rotating rod 6 are rotatably connected to the first runner 9 and the connecting platform 7. The connecting platform 7 is slidably connected to the guide rod 5. The guide rod 5 is fixedly connected to the machine body 1. Therefore, when the first runner 9 rotates clockwise, it drives the connecting platform 7 to move through the rotating rod 6. Under the guidance of the guide rod 5, the connecting platform 7 can only make a reciprocating sliding motion of up and down translation. The second gravel plate 4 is fixedly connected to both sides of the connecting platform 7 at a certain inclination angle and makes a reciprocating sliding motion of up and down translation along with the movement of the connecting platform 7.

[0039] When sand and gravel enter the interior of the machine body 1 and pass between the first crushing plate 2 and the second crushing plate 4, the second crushing plate 4 cooperates with the first crushing plate 2 to crush the sand and gravel through its own up-and-down sliding movement. When the sand and gravel enter the rotating box 21 through the receiving box 14 after being crushed by the first crushing plate 2 and the second crushing plate 4, since the upper end of the connecting rod 10 is fixedly connected to the outside of the connecting platform 7 and the lower end is fixedly connected to the upper end of the first rack 12, the first rack 12 meshes with the gear 13, the gear 13 is fixedly connected to the connecting shaft 22, and the connecting shaft 22 is fixedly connected to the rotating box 21. When the connecting platform 7 slides up and down, the first rack 12 makes a sliding movement of up-and-down translation together, thereby driving the gear 13 to rotate. The gear 13 drives the connecting shaft 22 to rotate, and the connecting shaft 22 drives the rotating box 21 to rotate, so that the stone materials will not accumulate in the rotating box 21 and then fall smoothly, and the sand and gravel can also be evenly scattered on the sieve plate 25.

[0040] Driven by the synchronous belt 11, the second runner 17 makes a clockwise movement at the same time. Since the second rotating shaft 28 is fixedly connected to the second runner 17 and the second rotating shaft 28 is fixedly connected to the incomplete gear 31, the incomplete gear 31 also makes a clockwise movement. Since the upper end of the second rack 3 is fixedly connected to the middle of the sieve plate 25, the lower ends of both sides of the sieve plate 25 are fixedly connected to the receiving columns 26, the upper end of the spring 27 is fixedly connected to the lower end of the receiving column 26, and the lower end of the spring 27 is fixedly connected to the upper end of the receiving plate 30. When the incomplete gear 31 rotates clockwise, it drives the second rack 3 to move downward, and the second rack 3 also drives the sieve plate 25 to compress the spring 27 downward accordingly. When the incomplete gear 31 rotates half a turn of the gear, the sieve plate 25 moves upward under the drive of the spring 27, and thus makes an up-and-down reciprocating movement to screen the sand and gravel.

[0041] In the initial period of time, the electric push rod 24 controls the baffle 23 to extend into the discharge box 16. At this time, the upward movement of the sieve plate 25 will be blocked by the baffle 23, and the sieve plate cannot rise to the height position of the discharge port 15. After a period of time, when the electric push rod 24 pulls the baffle 23 outward to make the baffle 23 no longer block the sieve plate 25, at this time, when the sieve plate 25 is pushed upward by the compressed spring 27, it will be on the upper side of the discharge port 15. At this time, the larger sand and gravel above the sieve plate 25 can slide to the discharge ports 15 on both sides. After the sand and gravel are crushed and screened, the motor 18 can be turned off.

[0042] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A sand and gravel crushing device for building construction, comprising a machine body (1), characterized in that, A crushing component is installed on the machine body (1), and the crushing component is used for crushing construction sand and gravel. A feeding component is also installed on the machine body (1), and the feeding component is used for conveying the crushed sand and gravel. A screening component for screening the sand and gravel conveyed by the feeding component is installed on the machine body (1). The crushing component includes a first crushing plate (2), a second crushing plate (4) and a driving mechanism. The driving mechanism is used for driving the second crushing plate (4) to move up and down. The first crushing plate (2) is fixedly connected to the side wall of the machine body (1), and the second crushing plate (4) is slidably arranged inside the machine body (1). The screening component includes a discharge box (16), a sieve plate (25) and a vibration mechanism for pushing the sieve plate (25) to vibrate up and down. The sieve plate (25) is slidably arranged inside the discharge box (16). A receiving column (26) is fixedly connected to the lower end of the sieve plate (25), and a spring (27) is fixedly connected to the lower end of the receiving column (26). A receiving plate (30) is fixedly connected to the inner wall of the discharge box (16), and the spring (27) is fixedly connected to the upper end of the receiving plate (30).

2. The sand and gravel crushing device for building construction according to claim 1, characterized in that, The driving mechanism includes a rotating rod (6), a first runner (9), a motor (18), and a first rotating shaft (19). The rotating rod (6) is rotatably connected to the first runner (9). The motor (18) is fixedly connected to the machine body (1) through a bracket. The output shaft of the motor (18) is fixedly connected to the first rotating shaft (19), and the first rotating shaft (19) is fixedly connected to the center position of the first runner (9).

3. An aggregate crushing device for building construction according to claim 1, characterized in that, The feeding component includes a receiving box (14), a rotating box (21) and a swinging mechanism for pushing the rotating box (21) to swing. The receiving box (14) is located in the middle of the machine body (1) and is fixedly connected to the first crushing plate (2) and the machine body (1). The rotating box (21) is located at the lower end of the receiving box (14).

4. A sand and gravel crushing device for building construction according to claim 1, wherein The vibration mechanism includes a synchronous belt (11), a second runner (17), a second rotating shaft (28), an incomplete gear (31), and a second rack (3). The second rack (3) is fixedly connected to the middle of the lower end of the sieve plate (25) and meshes with the incomplete gear (31). The second rotating shaft (28) is fixedly connected to the second runner (17). The first runner (9) and the second runner (17) are connected by a synchronous belt (11) for transmission.

5. A sand and gravel crushing device for building construction according to claim 1, characterized in that, Two groups of guide rods (5) are fixedly connected to the upper end of the machine body (1). Each group of guide rods (5) has two and is arranged in parallel. A connecting platform (7) is fixedly connected to the lower end of the second crushing plate (4), and the connecting platform (7) slidably penetrates through the guide rods (5).

6. A sand and gravel crushing device for building construction according to claim 1, characterized in that, A discharge port (15) is fixedly connected to the side wall of the discharge box (16). A baffle (23) is slidably penetrated through the side wall of the discharge box (16). A support plate (20) is fixedly connected to the side wall of the discharge box (16). An electric push rod (24) is installed on the support plate (20), and the telescopic end of the electric push rod (24) is fixedly connected to the baffle (23).

7. An architectural construction sand and gravel crushing device according to claim 3, characterized in that, The swing mechanism includes a connecting rod (10), a first rack (12), a gear (13), and a connecting shaft (22). The connecting shaft (22) is fixedly connected to the outside of the rotating box (21). The connecting shaft (22) is fixedly connected to the gear (13). The gear (13) meshes with the first rack (12). The first rack (12) is fixedly connected to the connecting rod (10). The connecting rod (10) is fixedly connected to the connecting table (7).

8. An aggregate crushing device for building construction according to claim 4, characterized in that, A connecting column (8) is fixedly connected to the inner wall of the discharge box (16). One end of the connecting column (8) far from the inner wall of the discharge box (16) is fixedly connected to a box body (29). The incomplete gear (31) and the second rack (3) are located inside the box body (29). The incomplete gear (31) is fixedly connected to the second rotating shaft (28).

Images