A river silt crushing device using a suction chuck.

Abstract

This utility model relates to the technical field of dredging devices, and in particular to a river silt sluice-type crushing device, which can adjust the shape of the crushing head according to the hardness of the silt, and has good adaptability; it includes a sluice pipe and a drive shaft, the drive shaft being rotatably mounted in the sluice pipe; it also includes a cutter disc, a push cylinder, two bearing seats, a hinge plate, multiple inner cutter rods and multiple outer cutter rods, the cutter disc being rotatably mounted on the input port of the sluice pipe, the drive shaft being connected to the cutter disc via a transmission assembly, the fixed end of the push cylinder being concentrically rotatably mounted on the cutter disc via a bearing seat, the hinge plate being rotatably mounted on the piston rod end of the push cylinder via another bearing seat, one end of the multiple inner cutter rods being rotatably connected to the cutter disc, the other end of the multiple inner cutter rods being rotatably connected to one end of the multiple outer cutter rods respectively, the other end of the multiple outer cutter rods being rotatably connected to the hinge plate evenly, and the multiple inner cutter rods and multiple outer cutter rods being evenly arranged circumferentially.

Description

Technical Field

[0001] This utility model relates to the technical field of dredging devices, and in particular to a river silt crushing device using a suction suction method. Background Technology

[0002] Silt deposited in river channels requires regular cleaning, typically using cutter suction dredging equipment. Chinese utility model patent CN222009036U discloses a auger head device for underwater dredging using a cutter suction system. This device includes a protective shell, a mud-guiding chamber, a drive motor, and a auger. The mud-guiding chamber is connected to the protective shell via a flange. The mud-guiding chamber includes a front channel and a rear channel, with the front channel being significantly larger than the rear channel. The front channel slopes backward and narrows to connect with the rear channel, facilitating the rapid entry of silt and guiding it to the rear channel. The front channel extends beyond the front end of the protective shell, and the rear channel extends beyond the rear end. The drive motor is located below the rear channel. A auger is rotatably mounted inside the front channel, with its front end extending forward and positioned in front of the front channel to break up the silt and allow it to flow smoothly into the front channel. The rear end of the auger extends backward into the front channel and is geared to the drive motor. This utility model has a compact and reasonable structure; the high-speed rotating auger can quickly break up the silt, which is then pumped away through the mud-guiding chamber.

[0003] However, the cutter head of the aforementioned auger head device for underwater dredging is fixed and cannot be deformed according to the hardness of the silt. This results in poor adaptability, as it cannot improve the suction efficiency when encountering soft silt and cannot improve the crushing ability when encountering hard silt. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a river silt crushing device with good adaptability, which can adjust the shape of the crushing head according to the hardness of the silt.

[0005] This utility model discloses a river silt chaff suction crushing device, comprising a chaff suction pipe and a drive shaft, the drive shaft being rotatably mounted in the chaff suction pipe; it also includes a cutter head, a push cylinder, two bearing seats, a hinge plate, multiple inner cutter rods, and multiple outer cutter rods. The cutter head is rotatably mounted on the input port of the chaff suction pipe. The drive shaft is connected to the cutter head via a transmission assembly. The fixed end of the push cylinder is concentrically rotatably mounted on the cutter head via one bearing seat. The hinge plate is rotatably mounted on the piston rod end of the push cylinder via another bearing seat. One end of each of the multiple inner cutter rods is rotatably connected to the cutter head, and the other end of each inner cutter rod is rotatably connected to one end of each of the multiple outer cutter rods. The other ends of the multiple outer cutter rods are evenly rotatably connected to the hinge plate. The multiple inner and multiple outer cutter rods are evenly arranged circumferentially. The output end of the chaff suction pipe is connected to a chaff suction dredger, and the drive shaft is connected to the power mechanism of the chaff suction dredger. During operation, the chaff suction dredger places the input end of the chaff suction pipe at the bottom of the river channel, and the drive mechanism of the chaff suction dredger drives the drive shaft to rotate. The transmission assembly drives the cutter head to rotate, which in turn drives multiple inner cutter bars to rotate. These inner cutter bars, in turn, drive multiple outer cutter bars to rotate, which in turn drive the hinged plate to rotate. Two bearing seats ensure the push cylinder remains stable relative to the suction pipe, preventing hydraulic hose twisting. The rotating inner and outer cutter bars crush the silt, which is then sucked into the suction pipe and transported to the cutter suction vessel. When the silt is soft, the piston rod of the push cylinder retracts, pulling the hinged plate closer to the suction pipe, causing the inner and outer cutter bars to bend outwards. This increases the crushing diameter of the inner and outer cutter bars, improving the crushing speed for softer silt. When the silt is hard, the piston rod of the push cylinder extends, pushing the hinged plate away from the suction pipe, straightening the inner and outer cutter bars. This reduces the effective crushing diameter of the inner and outer cutter bars, increasing the crushing force for harder silt and providing good adaptability.

[0006] Preferably, the transmission assembly includes a bearing bracket, a gear 1, and a gear ring 1. The bearing bracket is installed inside the suction pipe, the drive shaft is rotatably mounted on the bearing bracket, the gear 1 is concentrically mounted on the drive shaft, and the gear ring 1 is concentrically mounted on the cutter head. The gear 1 meshes with the gear ring 1. The drive shaft drives the gear 1 to rotate, and the gear 1 meshes with the gear ring 1 to drive the cutter head to rotate, thereby driving the cutter head. A protective cover is provided inside the suction pipe for the drive shaft, push cylinder, gear 1, and gear ring 1 to prevent sludge from contaminating the bearing bracket, gear 1, and gear ring 1.

[0007] Preferably, it also includes multiple crushing teeth, which are evenly installed on the cutter head; when the cutter head rotates, it drives the multiple crushing teeth to rotate, so that the multiple crushing teeth can crush the silt and improve the crushing efficiency.

[0008] Preferably, it also includes multiple second-stage crushing teeth and multiple third-stage crushing teeth, with multiple second-stage crushing teeth installed on multiple inner cutter bars and multiple third-stage crushing teeth installed on multiple outer cutter bars; the crushing efficiency of silt is improved by installing multiple second-stage crushing teeth and multiple third-stage crushing teeth.

[0009] Preferably, the device further includes multiple moving blades, multiple crushing teeth (four), and multiple hinge seats (two). Multiple hinge seats (two) are installed on each of the multiple outer blades. The rear parts of the multiple moving blades are hinged to the multiple hinge seats (two) on the multiple outer blades respectively. Multiple crushing teeth (four) are installed on the front parts of the multiple moving blades. The multiple crushing teeth (four) and multiple crushing teeth (three) are arranged alternately. The front parts of the multiple moving blades are connected to the multiple outer blades respectively. A linkage component is provided between the multiple moving blades and the multiple outer blades. The moving blades are connected to the outer blades through the linkage component and the multiple hinge seats (two), so that the multiple crushing teeth (three) and multiple crushing teeth (four) cooperate to crush the silt and improve the suction efficiency.

[0010] Preferably, the assembly also includes multiple push plates, multiple springs, and multiple push rods. The push plates are elastically mounted on the front sidewalls of multiple outer cutter bars via multiple springs. The front ends of the push rods are rotatably connected to the push plates, and the rear ends of the push rods are arranged in the transverse sliding grooves of the outer cutter bars. The rear ends of the push rods are rotatably connected to the bearings at the front of the multiple moving cutter plates. The spring force of the multiple springs pushes the push plates forward onto the outer cutter bars. At this time, the push plates, through the push rods, pull the front of the moving cutter plates tightly onto the outer cutter bars. When the silt is relatively soft, the push plates experience less resistance, and the multiple springs are not compressed. In this case, the multiple crushing teeth (four and three) are arranged in a row, forming an integral shovel shape, improving the crushing efficiency for softer silt. When the silt is relatively hard, the push plates experience greater resistance, and the multiple springs are compressed. At this time, the push plates move closer to the outer cutter bars, thereby pushing the front of the moving cutter plates outwards through the push rods, causing the multiple crushing teeth (four and three) to be staggered, forming two rows of teeth, improving the crushing efficiency for harder silt.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] Multiple rotating inner and outer cutter rods crush the silt. The crushed silt is sucked into the cutter suction pipe and transported to the cutter suction vessel. When the silt is relatively soft, the piston rod of the push cylinder retracts, pulling the hinged plate closer to the cutter suction pipe. This causes the multiple inner and outer cutter rods to bend outward, thereby increasing the crushing diameter of the silt and improving the crushing speed for softer silt. When the silt is relatively hard, the piston rod of the push cylinder extends, pushing the hinged plate away from the cutter suction pipe. This causes the multiple inner and outer cutter rods to straighten, reducing the effective crushing diameter of the silt and improving the crushing force for harder silt. This design offers good adaptability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a side sectional view of the present invention;

[0015] Figure 3 It is a structural diagram of the cutter head, pusher cylinder, bearing housing, hinge plate, inner cutter bar, and outer cutter bar;

[0016] Figure 4 This is a structural diagram of the inner cutter bar, outer cutter bar, second crushing tooth, and third crushing tooth;

[0017] Figure 5 It is a structural diagram showing the disassembled state of the outer cutter bar, the third crushing tooth, the moving cutter plate, the fourth crushing tooth, the push plate, the spring, and the push rod.

[0018] Figure 6 This is a second structural diagram showing the disassembled state of the outer cutter bar, the third crushing tooth, the moving cutter plate, the fourth crushing tooth, the push plate, the spring, and the push rod.

[0019] The following are labels in the attached diagram: 1. Squeegee; 2. Drive shaft; 3. Cutter head; 4. Push cylinder; 5. Bearing seat; 6. Hinge plate; 7. Inner cutter bar; 8. Outer cutter bar; 9. Crushing tooth one; 10. Crushing tooth two; 11. Crushing tooth three; 12. Moving cutter plate; 13. Crushing tooth four; 14. Hinge seat two; 15. Push plate; 16. Spring; 17. Push rod; 18. Bearing bracket; 19. Gear one; 20. Gear ring one. Detailed Implementation

[0020] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example 1

[0021] like Figures 1 to 4As shown, a river silt chaff crushing device includes a suction pipe 1 and a drive shaft 2, with the drive shaft 2 rotatably mounted in the suction pipe 1; it also includes a cutter head 3, a pusher cylinder 4, two bearing seats 5, a hinge plate 6, multiple inner cutter rods 7, and multiple outer cutter rods 8. The cutter head 3 is rotatably mounted on the input port of the suction pipe 1. The drive shaft 2 and the cutter head 3 are connected by a transmission assembly. The fixed end of the pusher cylinder 4 is concentrically rotatably mounted on the cutter head 3 via one bearing seat 5. The hinge plate 6 is rotatably mounted on the piston rod end of the pusher cylinder 4 via another bearing seat 5. The multiple inner cutter rods 7... One end is rotatably connected to the cutter head 3, and the other ends of multiple inner cutter rods 7 are rotatably connected to one end of multiple outer cutter rods 8 respectively. The other ends of multiple outer cutter rods 8 are evenly hinged to the rotating disk 6. The multiple inner cutter rods 7 and multiple outer cutter rods 8 are evenly arranged circumferentially. The transmission assembly includes a bearing bracket 18, a gear 19 and a gear ring 20. The bearing bracket 18 is installed inside the suction pipe 1, the drive shaft 2 is rotatably installed on the bearing bracket 18, the gear 19 is concentrically installed on the drive shaft 2, and the gear ring 20 is concentrically installed on the cutter head 3. The gear 19 meshes with the gear ring 20.

[0022] The output end of the suction pipe 1 is connected to the suction dredger, and the drive shaft 2 is connected to the power mechanism of the suction dredger. During operation, the suction dredger places the input end of the suction pipe 1 at the bottom of the river. The drive mechanism of the suction dredger drives the drive shaft 2 to rotate, which in turn drives gear 19 to rotate. Gear 19 meshes with gear ring 20 to drive the cutter head 3 to rotate, thus driving the cutter head 3. Protective covers for the drive shaft 2, push cylinder 4, gear 19, and gear ring 20 are installed inside the suction pipe 1 to prevent silt from contaminating the bearing bracket 18, gear 19, and gear ring 20. The cutter head 3 drives multiple inner cutter rods 7 to rotate, which in turn drive multiple outer cutter rods 8 to rotate. The multiple outer cutter rods 8 drive the hinge plate 6 to rotate. By setting two bearing seats 5, the push cylinder 4 can rotate relative to the suction pipe 1. To maintain stability and prevent hydraulic hose twisting, multiple rotating inner cutter rods 7 and outer cutter rods 8 crush the silt. The crushed silt is sucked into the cutter suction pipe 1 and transported to the cutter suction vessel. When the silt is relatively soft, the piston rod of the push cylinder 4 retracts, pulling the hinged plate 6 closer to the cutter suction pipe 1, causing the multiple inner cutter rods 7 and outer cutter rods 8 to bend outward, thereby increasing the crushing diameter of the silt by the multiple inner cutter rods 7 and outer cutter rods 8 and improving the crushing speed for softer silt. When the silt is relatively hard, the piston rod of the push cylinder 4 extends, pushing the hinged plate 6 away from the cutter suction pipe 1, causing the multiple inner cutter rods 7 and outer cutter rods 8 to straighten, thereby reducing the effective crushing diameter of the silt by the multiple inner cutter rods 7 and outer cutter rods 8 and improving the crushing force for harder silt, with good adaptability. Example 2

[0023] like Figures 4 to 6As shown, based on Embodiment 1, it further includes multiple crushing teeth 9, which are evenly mounted circumferentially on the cutter head 3; it also includes multiple crushing teeth 10 and multiple crushing teeth 11, with multiple crushing teeth 10 mounted on multiple inner cutter bars 7 and multiple crushing teeth 11 mounted on multiple outer cutter bars 8; it also includes multiple moving cutter plates 12, multiple crushing teeth 13, and multiple hinge seats 14, with multiple hinge seats 14 mounted on multiple outer cutter bars 8, and the rear parts of the multiple moving cutter plates 12 are hinged to the multiple hinge seats 14 on the multiple outer cutter bars 8, and the front parts of the multiple moving cutter plates 12 are hinged to the multiple outer cutter bars 8. Each component is equipped with multiple crushing teeth 13, which are arranged alternately with multiple crushing teeth 11. The front parts of multiple moving blades 12 are respectively connected to multiple outer blades 8. The component also includes multiple push plates 15, multiple springs 16, and multiple push rods 17. The multiple push plates 15 are elastically mounted on the front sidewalls of the multiple outer blades 8 through multiple springs 16. The front ends of the multiple push rods 17 are rotatably connected to the multiple push plates 15. The rear ends of the multiple push rods 17 are respectively arranged in the transverse sliding grooves of the multiple outer blades 8. The rear ends of the multiple push rods 17 are rotatably connected to the bearings at the front of the multiple moving blades 12.

[0024] When the cutter head 3 rotates, it drives multiple crushing teeth 9 to rotate, causing the multiple crushing teeth 9 to crush the silt and improve the crushing efficiency. The crushing efficiency of the silt is further improved by installing multiple crushing teeth 10 and multiple crushing teeth 11. The elastic force of multiple springs 16 pushes the push plate 15 forward towards the outer cutter rod 8. At this time, the push plate 15, through the push rod 17, pulls the front part of the moving cutter plate 12 tightly onto the outer cutter rod 8. When the silt is relatively soft, the resistance experienced by the push plate 15 is small, and the multiple springs 16 will not be compressed. Multiple crushing teeth 13 and multiple crushing teeth 11 are arranged in a row to form an integral shovel shape, which improves the crushing efficiency of softer silt. When the silt is harder, the push plate 15 experiences greater resistance, and multiple springs 16 are compressed. At this time, the push plate 15 moves closer to the outer cutter bar 8, thereby pushing the front part of the moving cutter plate 12 to flip outward of the outer cutter bar 8 through the push rod 17, so that the multiple crushing teeth 13 and multiple crushing teeth 11 are staggered to form two rows of teeth, which improves the crushing efficiency of harder silt.

[0025] like Figures 1 to 6As shown, this utility model discloses a river silt cutter suction crushing device. During operation, the cutter suction vessel first places the input end of the cutter suction pipe 1 into the riverbed. The drive mechanism of the cutter suction vessel drives the drive shaft 2 to rotate. The drive shaft 2 drives the cutter disc 3 to rotate via gear 19 and gear ring 20. The cutter disc 3 drives multiple inner cutter rods 7 to rotate, which in turn drive multiple outer cutter rods 8 to rotate. The outer cutter rods 8 drive the hinged plate 6 to rotate. The rotating inner and outer cutter rods 7 and 8 crush the silt. Multiple crushing teeth 10, 11, and 13 improve the crushing efficiency. The crushed silt is sucked into the cutter suction pipe 1 and transported to the cutter suction vessel. When the silt is relatively soft, the piston rod of the push cylinder 4 retracts, pulling the hinged plate 6 closer to the cutter suction pipe 1, causing the multiple inner and outer cutter rods 7 and 8 to rotate. The blades 8 bend outwards, thereby increasing the crushing diameter of the silt by the multiple inner blades 7 and the multiple outer blades 8. At this time, the multiple crushing teeth 13 and the multiple crushing teeth 11 are arranged in a row to form an integral shovel shape, which improves the crushing speed for softer silt. When the silt is harder, the piston rod of the push cylinder 4 extends and pushes the hinge plate 6 away from the suction pipe 1, which straightens the multiple inner blades 7 and the multiple outer blades 8. This reduces the effective crushing diameter of the silt by the multiple inner blades 7 and the multiple outer blades 8, and the push plate 15 experiences greater resistance. The multiple springs 16 are compressed, and the push plate 15 moves closer to the outer blades 8. This pushes the front part of the moving blade plate 12 to flip outwards from the outer blades 8 through the push rod 17, causing the multiple crushing teeth 13 and the multiple crushing teeth 11 to be staggered, forming two rows of teeth, which improves the crushing force and crushing efficiency for harder silt.

[0026] The main functions achieved by this utility model are:

[0027] 1. The shape of the crushing head can be adjusted according to the hardness of the silt, making it highly adaptable;

[0028] 2. When the sludge is hard, the piston rod of the push cylinder 4 extends and pushes the hinge plate 6 away from the suction pipe 1, so that the multiple inner knife rods 7 and multiple outer knife rods 8 straighten, thereby reducing the effective crushing diameter of the multiple inner knife rods 7 and multiple outer knife rods 8 on the sludge and increasing the crushing force on the harder sludge.

[0029] 3. When the sludge is relatively soft, the piston rod of the push cylinder 4 retracts and pulls the hinge plate 6 towards the suction pipe 1, causing multiple inner cutter rods 7 and multiple outer cutter rods 8 to bend outward, thereby increasing the crushing diameter of the multiple inner cutter rods 7 and multiple outer cutter rods 8 on the sludge and improving the crushing speed of the softer sludge.

[0030] 4. The crushing tooth 413 automatically opens or closes according to the hardness of the silt, improving the crushing effect on the silt.

[0031] The river silt cutter suction crushing device of this utility model has common mechanical installation, connection and setting methods, and can be implemented as long as it can achieve its beneficial effect. The cutter suction pipe 1, drive shaft 2, cutter head 3, push cylinder 4, bearing seat 5, crushing tooth 1 9, crushing tooth 2 10, crushing tooth 3 11, crushing tooth 4 13, hinge seat 2 14, spring 16, bearing bracket 18, gear 1 19 and gear ring 20 of this utility model are purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without the need for creative labor by technical personnel in this field.

[0032] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A river silt cutter suction crushing device, comprising a cutter suction pipe (1) and a drive shaft (2), wherein the drive shaft (2) is rotatably installed in the cutter suction pipe (1); characterized in that, It also includes a cutter head (3), a pusher cylinder (4), two bearing seats (5), a hinge plate (6), multiple inner cutter rods (7) and multiple outer cutter rods (8). The cutter head (3) is rotatably mounted on the input port of the suction pipe (1). The drive shaft (2) is connected to the cutter head (3) through a transmission assembly. The fixed end of the pusher cylinder (4) is rotatably mounted on the cutter head (3) through a bearing seat (5). The hinge plate (6) is rotatably mounted on the piston rod end of the pusher cylinder (4) through another bearing seat (5). One end of multiple inner cutter rods (7) is rotatably connected to the cutter head (3). The other end of multiple inner cutter rods (7) is rotatably connected to one end of multiple outer cutter rods (8) respectively. The other end of multiple outer cutter rods (8) is rotatably connected to the hinge plate (6). The multiple inner cutter rods (7) and multiple outer cutter rods (8) are evenly arranged circumferentially.

2. The river silt cutter suction crusher as described in claim 1, characterized in that, The transmission assembly includes a bearing bracket (18), a gear (19), and a gear ring (20). The bearing bracket (18) is installed inside the suction pipe (1). The drive shaft (2) is rotatably mounted on the bearing bracket (18). The gear (19) is concentrically mounted on the drive shaft (2). The gear ring (20) is concentrically mounted on the cutter head (3). The gear (19) meshes with the gear ring (20).

3. The river silt cutter suction crusher as described in claim 1, characterized in that, It also includes multiple crushing teeth (9), which are evenly installed on the cutter head (3) around the circumference.

4. The river silt cutter suction crusher as described in claim 1, characterized in that, It also includes multiple second-stage crushing teeth (10) and multiple third-stage crushing teeth (11), with multiple second-stage crushing teeth (10) installed on multiple inner cutter bars (7) and multiple third-stage crushing teeth (11) installed on multiple outer cutter bars (8).

5. The river silt cutter suction crusher as described in claim 1, characterized in that, It also includes multiple moving blades (12), multiple crushing teeth four (13) and multiple hinge seats two (14). Multiple hinge seats two (14) are installed on multiple outer blades (8). The rear part of multiple moving blades (12) is hinged to multiple hinge seats two (14) on multiple outer blades (8). Multiple crushing teeth four (13) are installed on the front part of multiple moving blades (12). Multiple crushing teeth four (13) and multiple crushing teeth three (11) are arranged alternately. The front part of multiple moving blades (12) is connected to multiple outer blades (8).

6. The river silt cutter suction crusher as described in claim 5, characterized in that, It also includes multiple push plates (15), multiple springs (16) and multiple push rods (17). The multiple push plates (15) are elastically mounted on the front side wall of multiple outer tool bars (8) through multiple springs (16). The front ends of the multiple push rods (17) are rotatably connected to the multiple push plates (15). The rear ends of the multiple push rods (17) are arranged in the transverse sliding grooves of the multiple outer tool bars (8). The rear ends of the multiple push rods (17) are rotatably connected to the front bearings of the multiple moving tool plates (12).

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