Crushing device for road and bridge engineering construction

Abstract

The utility model relates to the technical field of road and bridge engineering construction, and discloses a crushing device for road and bridge engineering construction, which comprises a crushing box, the inner side wall of the crushing box is rotatably connected with two crushing rollers and two crushing rollers, and the left ends of each crushing roller and each crushing roller penetrate through the crushing box and are fixedly provided with gears; the outer surface of each set of gears is meshed with a sawtooth belt, two first stepping motors are arranged on the left side of the crushing box, the power output ends of the two first stepping motors are fixedly connected with the left side faces of the two gears correspondingly, a filter screen is slidably connected to the inner wall of the crushing box, and a collecting frame is fixedly installed on the right side face of the crushing box. The inner bottom wall of the collecting frame is rotationally connected with a spiral conveying rod, and a second stepping motor is fixedly installed on the upper surface of the collecting frame. The second stepping motor can drive the spiral conveying rod to rotate, so that the spiral conveying rod can convey large waste materials into the crushing box again, and the large waste materials can be crushed for multiple times.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge engineering construction technology, specifically a crushing device for road and bridge engineering construction. Background Technology

[0002] Construction projects generate a lot of construction waste, such as discarded cement blocks. In order to remove this construction waste, crushing equipment is needed to process it and turn it into a valuable resource.

[0003] The utility model patent application CN217796570U discloses a waste crushing device for engineering construction, including a crushing box. A first connecting block is fixedly connected to the left side of the crushing box. A first motor is fixedly installed on one side of the first connecting block. A first rotating shaft is fixedly connected to the output end of the first motor. A first gear is fixedly installed on the surface of the first rotating shaft. A second rotating shaft is provided on the inner right side of the crushing box. A second gear is fixedly installed at the other end of the second rotating shaft through the left side wall of the crushing box. Crushing cylinders are fitted onto the surfaces of both the first and second rotating shafts. Crushing teeth are fixedly connected to the surface of the crushing cylinders. A partition is fixedly installed inside the crushing box. A second connecting block is fixedly connected to the inner wall of the crushing box. A motor housing is fixedly connected to the other end of the second connecting block. A second motor is fixedly installed on the bottom surface of the motor housing. A third rotating shaft is fixedly connected to the output end of the second motor. A rotating plate is fixedly connected to the free end of the third rotating shaft through the top surface of the motor housing. A filter screen and blades are fixedly installed on the top surface of the rotating plate.

[0004] The above technical solution uses centrifugal force generated by the rotation of the rotating plate to screen out waste that has achieved the desired crushing effect. Waste that cannot be screened out will continue to be crushed by the blades until it can be screened out. However, the above technical solution involves secondary crushing of waste by the blades, and the waste rotates synchronously with the blades, resulting in incomplete crushing and poor crushing effect. Furthermore, the crushed waste needs to be transported by personnel, which increases the labor intensity of workers and reduces work efficiency, making it less practical. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a crushing device for road and bridge construction, which features multiple cycles of crushing of waste materials, resulting in better crushing effects. Furthermore, the crushed waste materials do not require personnel to transport them, thereby reducing the labor intensity of workers and increasing work efficiency, making it highly practical.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a crushing device for road and bridge construction, comprising a crushing box, wherein two crushing rollers and two pulverizing rollers are rotatably connected to the inner side wall of the crushing box, and a gear is fixedly installed at the left end of each crushing roller and pulverizing roller through the crushing box, and a sawtooth belt is meshed on the outer surface of each set of gears; two first stepper motors are arranged on the left side of the crushing box, and the power output ends of the two first stepper motors are fixedly connected to the left side of two of the gears respectively; a filter screen is slidably connected to the inner wall of the crushing box; a collection frame is fixedly installed on the right side of the crushing box, and a spiral conveying rod is rotatably connected to the inner bottom wall of the collection frame; a second stepper motor is fixedly installed on the upper surface of the collection frame, and the power output end of the second stepper motor passes through the collection frame and is fixedly connected to the top end of the spiral conveying rod; a conveyor frame is fixedly installed on the bottom surface of the crushing box, and a conveyor belt is arranged inside the conveyor frame.

[0009] Preferably, the inner sidewall of the conveyor frame is rotatably connected to two rollers, the outer surfaces of the two rollers are rotatably connected to the outer surface of the conveyor belt, and a third stepper motor is provided on the left side of the conveyor frame. The power output end of the third stepper motor passes through the conveyor frame and is fixedly connected to the left end of one of the rollers.

[0010] Preferably, a protective box is fixedly installed on the bottom surface of the third stepper motor, and the right side of the protective box is fixedly connected to the left side of the conveyor frame.

[0011] Preferably, a protective box is fixedly installed on the bottom surface of both first stepper motors, and the right side of the protective box is fixedly connected to the left side of the crushing box.

[0012] Preferably, four force springs are fixedly installed on both sides of the filter screen, and the end of each force spring away from the filter screen is fixedly connected to the inner wall of the crushing box.

[0013] Preferably, a vibration motor is fixedly installed on the right side of the filter screen, and a feeding rack is fixedly installed on the upper surface of the crushing box.

[0014] Preferably, two guide blocks are fixedly installed on the inner bottom wall of the collection rack, and a conveying cylinder is fixedly connected to the outer surface of the collection rack.

[0015] Preferably, the bottom surface of the conveyor frame is fixedly equipped with four support legs, and each support leg is fixedly equipped with a caster wheel on its bottom surface.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a crushing device for road and bridge construction, which has the following beneficial effects: The crushing device for road and bridge construction uses a first stepper motor to drive a gear to rotate, which in turn drives a toothed belt to rotate. This allows the crushing roller to perform initial crushing of the waste material, the pulverizing roller to perform secondary crushing, and the filter screen to filter and screen larger waste materials after crushing, allowing them to directly enter the collection rack. A second stepper motor then drives a screw conveyor to rotate, allowing the screw conveyor to transport the larger waste materials back to the crushing box for further crushing, resulting in better crushing performance. The conveyor belt transports the crushed waste material, eliminating the need for manual transfer, thus reducing the labor intensity of workers and increasing work efficiency, achieving a highly practical effect. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the crushing box of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the crushing roller of this utility model;

[0020] Figure 3 This is a cross-sectional perspective structural diagram of the collection rack of this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the vibration motor of this utility model;

[0022] Figure 5 This is a cross-sectional three-dimensional structural schematic diagram of the conveyor frame of this utility model.

[0023] In the diagram: 1. Crushing box; 2. First stepper motor; 3. Toothed belt; 4. Gear; 5. Crushing roller; 6. Crushing roller; 7. Filter screen; 8. Collection rack; 9. Spiral conveyor rod; 10. Second stepper motor; 11. Conveyor frame; 12. Conveyor belt; 13. Roller shaft; 14. Third stepper motor; 15. Protective box; 16. Protective box; 17. Force spring; 18. Vibration motor; 19. Feeding rack; 20. Guide block; 21. Feeding cylinder; 22. Support leg; 23. Caster wheel. Detailed Implementation

[0024] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a crushing device for road and bridge construction.

[0025] Please see Figure 1-5This utility model discloses a crushing device for road and bridge construction, comprising a crushing box 1. Two crushing rollers 5 and two pulverizing rollers 6 are rotatably connected to the inner wall of the crushing box 1. The left end of each crushing roller 5 and pulverizing roller 6 passes through the crushing box 1 and is fixedly installed with a gear 4. The outer surface of each set of gears 4 is meshed with a sawtooth band 3. Two first stepper motors 2 are arranged on the left side of the crushing box 1. A protective box 16 is fixedly installed on the bottom surface of the two first stepper motors 2. The right side of the protective box 16 is fixedly connected to the left side of the crushing box 1. The protective box 16 can support and protect the first stepper motors 2, preventing them from shaking or shifting during operation and increasing the stability of the first stepper motors 2.

[0026] The output ends of the two first stepper motors 2 are fixedly connected to the left side of two gears 4 respectively. A filter screen 7 is slidably connected to the inner wall of the crushing box 1. Four force springs 17 are fixedly installed on both sides of the filter screen 7. The end of each force spring 17 away from the filter screen 7 is fixedly connected to the inner side wall of the crushing box 1. The force springs 17 can support the filter screen 7, thereby preventing the filter screen 7 from shifting and increasing the stability of the filter screen 7.

[0027] A collection frame 8 is fixedly installed on the right side of the crushing box 1. A screw conveyor rod 9 is rotatably connected to the inner bottom wall of the collection frame 8. A second stepper motor 10 is fixedly installed on the upper surface of the collection frame 8. The power output end of the second stepper motor 10 passes through the collection frame 8 and is fixedly connected to the top of the screw conveyor rod 9. A vibration motor 18 is fixedly installed on the right side of the filter screen 7. A discharge rack 19 is fixedly installed on the upper surface of the crushing box 1. The vibration motor 18 can drive the filter screen 7 to shake, thereby facilitating the screening of waste by the filter screen 7 and increasing the practicality of the device.

[0028] A conveyor frame 11 is fixedly installed on the bottom surface of the crushing box 1. A conveyor belt 12 is installed inside the conveyor frame 11. Two rollers 13 are rotatably connected to the inner side wall of the conveyor frame 11. The outer surfaces of the two rollers 13 are rotatably connected to the outer surface of the conveyor belt 12. A third stepper motor 14 is installed on the left side of the conveyor frame 11. The power output end of the third stepper motor 14 passes through the conveyor frame 11 and is fixedly connected to the left end of one of the rollers 13. The power provided by the third stepper motor 14 can drive the roller 13 to rotate, thereby driving the conveyor belt 12 to transport waste materials, which increases the convenience of waste material transportation.

[0029] A protective box 15 is fixedly installed on the bottom surface of the third stepper motor 14. The right side of the protective box 15 is fixedly connected to the left side of the conveyor frame 11. The protective box 15 can protect the third stepper motor 14, thereby preventing external forces from damaging the third stepper motor 14 and increasing the protection of the device.

[0030] Two guide blocks 20 are fixedly installed on the inner bottom wall of the collection frame 8, and a conveying cylinder 21 is fixedly connected to the outer surface of the collection frame 8. Larger waste materials can be conveyed through the guide blocks 20, and the conveying cylinder 21 can conveniently convey larger waste materials back to the crushing box 1, which increases the convenience of the device.

[0031] Four support legs 22 are fixedly installed on the bottom surface of the conveyor frame 11. Each support leg 22 is fixedly installed with a caster wheel 23. The caster wheel 23 can be limited and fixed by the support legs 22, which facilitates the processing of waste materials in different positions and further increases the practicality of the device.

[0032] The working principle of this utility model is as follows: First, the first stepper motor 2, the second stepper motor 10, the third stepper motor 14, and the vibration motor 18 are connected to the power supply. When it is necessary to crush the waste generated from road and bridge construction, the waste is manually placed into the crushing box 1. The power provided by the first stepper motor 2 drives the gear 4 to rotate, which in turn drives the toothed belt 3 to rotate, so that the crushing roller 5 can perform preliminary crushing of the waste, and the crushing roller 6 can perform secondary crushing of the waste. The vibration motor 18 drives the filter screen 7 to shake, so that the filter screen 7 can filter and screen the larger waste after crushing. The larger waste can directly enter the collection box. In the frame 8, the force spring 17 supports the filter screen 7, preventing it from shifting. The power provided by the second stepper motor 10 drives the screw conveyor 9 to rotate, allowing it to re-transport larger waste materials to the crushing box 1 for further crushing, resulting in better crushing performance. The third stepper motor 14 drives the roller shaft 13 to rotate, enabling the conveyor belt 12 to transport the crushed waste materials without the need for manual transfer. This reduces the labor intensity of workers and increases work efficiency, making the crushing device for road and bridge construction more practical.

[0033] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A crushing device for road and bridge engineering construction, comprising a crushing box (1), characterized in that: The inner wall of the crushing box (1) is rotatably connected to two crushing rollers (5) and two crushing rollers (6); the left end of each crushing roller (5) and crushing roller (6) penetrates the crushing box (1) and is fixedly mounted with a gear (4); the outer surface of each group of the gears (4) is meshed with a sawtooth belt (3); two first stepper motors (2) are arranged on the left side of the crushing box (1); the output ends of the power of the two first stepper motors (2) are respectively fixedly connected to the left sides of two of the gears (4); the inner wall of the crushing box (1) slides A filter screen (7) is connected, a collecting frame (8) is fixedly installed on the right side of the crushing box (1), the inner bottom wall of the collecting frame (8) is rotatably connected to a spiral conveying rod (9), a second stepping motor (10) is fixedly installed on the upper surface of the collecting frame (8), the output end of the power of the second stepping motor (10) passes through the collecting frame (8) and is fixedly connected to the top of the spiral conveying rod (9), a conveying frame (11) is fixedly installed on the bottom surface of the crushing box (1), and a conveying belt (12) is arranged inside the conveying frame (11).

2. A crushing device for road and bridge engineering construction according to claim 1, characterized in that: The inner side wall of the conveying frame (11) is rotatably connected to two rollers (13), and the outer surfaces of the two rollers (13) are rotatably connected to the outer surface of the conveying belt (12). A third stepping motor (14) is arranged on the left side of the conveying frame (11), and the output end of the power of the third stepping motor (14) passes through the conveying frame (11) and is fixedly connected to the left end of one of the rollers (13).

3. A crushing device for road and bridge engineering construction according to claim 2, characterized in that: A protection box (15) is fixedly mounted on the bottom surface of the third stepping motor (14), and the right side surface of the protection box (15) is fixedly connected to the left side surface of the conveying frame (11).

4. A crushing device for road and bridge engineering construction according to claim 1, characterized in that: A protection box (16) is fixedly mounted on the bottom surfaces of the two first stepper motors (2), and the right side surface of the protection box (16) is fixedly connected to the left side surface of the crushing box (1).

5. A crushing device for road and bridge engineering construction according to claim 1, characterized in that: Four force springs (17) are fixedly mounted on both sides of the filter screen (7), and one end of each force spring (17) away from the filter screen (7) is fixedly connected to the inner wall of the crushing box (1).

6. A crushing device for road and bridge engineering construction according to claim 1, characterized in that: A vibration motor (18) is fixedly mounted on the right side of the filter screen (7), and a material discharging rack (19) is fixedly mounted on the upper surface of the crushing box (1).

7. A crushing device for road and bridge engineering construction according to claim 1, characterized in that: Two guide blocks (20) are fixedly mounted on the inner bottom wall of the collecting rack (8), and a material conveying cylinder (21) is fixedly connected to the outer surface of the collecting rack (8).

8. A crushing device for road and bridge engineering construction according to claim 1, characterized in that: Four support legs (22) are fixedly mounted on the bottom surface of the conveying frame (11), and a universal wheel (23) is fixedly mounted on the bottom surface of each support leg (22).

Images