A municipal road dredging device and a working method thereof

Abstract

The application relates to the technical field of road dredging, in particular to a municipal road dredging device and a working method thereof. The device comprises a vehicle body and a scraper bucket. The scraper bucket is rotationally arranged on the vehicle body. The front end of the scraper bucket is formed into a scraper part. From the scraper part to the inside, a separation assembly, a rolling roller, a spiral cutter and a concentration assembly are sequentially arranged on the scraper bucket. Side suction pipes and a central suction pipe are arranged on the vehicle body. The suction end of the side suction pipe is connected with the separation assembly to suck small-particle sludge separated by the separation assembly. The suction end of the central suction pipe is connected with the inner side wall of the scraper bucket to suck large-particle garbage concentrated by the concentration assembly. After entering the scraper bucket, the sludge is screened by the separation assembly. Small-particle sludge is directly sucked by the side suction pipe. Large-particle garbage is concentrated by two concentration brooms of the concentration assembly after being rolled and cut. The central suction pipe is facilitated. The sludge is not easy to adhere to the assembly for treating large-particle garbage and can be concentrated at the bottom of the scraper bucket without being easily left.

Description

Technical Field

[0001] This invention relates to the field of road dredging technology, specifically to a municipal road dredging device and its working method. Background Technology

[0002] With the increasing number of vehicles in cities and the acceleration of urbanization, roads are constantly widening and increasing in number, making road dredging work increasingly arduous. Especially after heavy rain, mud on the road is carried by the water flow to low-lying areas, forming silt deposits. If not cleared in time, vehicles are prone to slipping when driving through these areas. Furthermore, once the accumulated silt dries, vehicles passing through will generate a large amount of dust, polluting the environment.

[0003] Existing technology utilizes an auger to concentrate sludge, and a crushing roller and wear-resistant plate can grind the blockage, reducing its size and softening its sharp edges. This lowers the risk of damage to the dredging pipe and auger, and improves the stability of continuous operation. However, during auger sludge transport, the blades cannot contact the bottom of the bucket, leading to sludge accumulation at the bottom. Furthermore, the lack of a sludge screening structure results in small sludge particles being transported together with larger debris. The sticky nature of the sludge makes it adhere to structures handling larger debris, requiring frequent manual cleaning, making it inconvenient to use. Summary of the Invention

[0004] The purpose of this invention is to provide a municipal road dredging device and its working method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A municipal road dredging device includes a vehicle body and a bucket. The bucket is rotatably mounted on the vehicle body, and a scraper section is formed at the front end of the bucket. Starting from the scraper section, a separation component, a compaction roller, a spiral cutter, and a collection component are sequentially arranged on the bucket from the outside to the inside. A side absorption pipe and a central absorption pipe are provided on the vehicle body. The adsorption end of the side absorption pipe is connected to the separation component to absorb small particles of sludge separated by the separation component. The adsorption end of the central absorption pipe is connected to the inner wall of the bucket to absorb large particles of waste collected by the collection component.

[0006] Preferably, the separation assembly includes a screening roller with a plurality of screening holes arranged in a circumferential array on its surface to allow small particles of sludge to flow into the screening roller. One side of the screening roller is the discharge end, which is connected to the adsorption end of the absorption pipe. A guide plate is provided inside the screening roller, and the guide plate is spiral-shaped to guide the sludge inside the screening roller to flow toward the discharge end. A separation motor is provided on the side wall of the shovel head, and the drive end of the separation motor is fixedly connected to the other side of the screening roller.

[0007] Furthermore, the number of screening rollers is two, and the separation assembly also includes a first limiting seat and a second limiting seat. The first limiting seat includes a first arc-shaped portion and a protrusion. The first arc-shaped portion is in contact with the surface of one screening roller. The second limiting seat includes a second arc-shaped portion, a third arc-shaped portion, and an inwardly recessed portion that is joined with the protrusion. The third arc-shaped portion and the first arc-shaped portion are located at the same horizontal height and are joined together to form a semi-circular structure. The second arc-shaped portion is located above the third arc-shaped portion and is in contact with the surface of the other screening roller, thereby creating a height difference between the two screening rollers.

[0008] Furthermore, a wear-resistant rubber layer is formed on the surface of the first and second limiting seats. When the screening rollers rotate against the friction of the wear-resistant rubber layer, the sludge on top will not seep down along the connection gap under the elastic seal of the wear-resistant rubber layer. The gap between the two screening rollers is also filled with sponge. The ends of the first and second limiting seats opposite to the screening rollers are formed with threaded holes, so as to be threadedly connected to the inner wall of the bucket for disassembly and fixation.

[0009] Furthermore, a drive screw is provided horizontally above the screening roller. The screw end of the drive screw is movably connected to one side wall of the bucket, while the motor end is fixed to the other side wall of the bucket. An anti-clogging brush is provided on the screw end, and the bristles of the anti-clogging brush penetrate the screening hole of the screening roller.

[0010] Preferably, the bottom of the bucket has a groove corresponding to the position of the rolling roller and is provided with a wear-resistant plate. The side wall of the bucket has an opening corresponding to the position of the wear-resistant plate and is fitted with a limiting cover. The end of the limiting cover that contacts the wear-resistant plate is provided with an elastic rubber layer. The other end of the limiting cover is located on the outside of the bucket and is fixed to the bucket by bolt thread connection.

[0011] Preferably, the axial center of the spiral cutter is a roller, and the surface is a cutting edge. The roller is located between the inner walls on both sides of the bucket and is connected to a drive motor. There are two sets of cutting edges, which are spiral structures in opposite directions and extend the same length from both ends to the center. A blower is provided above the junction of the two sets of cutting edges.

[0012] Preferably, the centralized component includes a centralized motor, the output end of which is fixed with a bidirectional threaded rod. The bidirectional threaded rod has two threads of the same length but opposite directions. A movable end is formed on any one of the threads, and a hollow motor is fixedly disposed on the surface of the movable end. The drive end of the hollow motor is connected to a centralized broom, and pressure switches are formed at both axial ends of the hollow motor.

[0013] Preferably, the front end of the vehicle body is provided with two sets of fixed frames, and a mechanical arm is rotatably mounted between the fixed frames. A rotating motor is mounted on the fixed frame, the drive end of the rotating motor is connected to the mechanical arm, the mechanical arm is connected and fixed to the bucket, and a synchronizing rod is connected between the two mechanical arms.

[0014] A method for operating a municipal road dredging device includes the following steps: S1. Before use, check the wear condition of the first limit seat, the second limit seat and the wear plate, and disassemble and replace the severely worn components. After checking that everything is correct, proceed to the next step. S2. The scraper removes the sludge. The sludge is first screened by the rotating screening roller at the lower position, and then screened by the screening roller at the higher position after it has accumulated to a certain height. During the process, the anti-clogging brush moves back and forth to brush out the sludge that is blocked in the screening holes. The small particles of sludge that are screened out are absorbed into the vehicle body by the side absorption pipe under the guidance of the guide plate, while the large particles of garbage are transported to the next step. S3. Large particles of waste fall onto the wear-resistant plate, are crushed by the crushing rollers, and are rolled inward to move to the next step; S4. The crushed waste comes into contact with the spiral cutter and is shredded and conveyed to the next step. The remaining debris is concentrated in the center along the spiral direction and blown off by the blower. S5. The two centralized brooms move in opposite directions simultaneously. When they move towards the center, the brushes are in the downward position. After the two centralized brooms collide with each other, the pressure switch controls the centralized brooms to change their moving direction and rotate to the position where the brushes are facing upward, so as to concentrate the garbage to the central absorption pipe and absorb it into the vehicle body.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. Compared with existing inventions, this invention can separate sludge entering the bucket into small sludge particles and large waste particles through a separation component, thereby achieving separation treatment and preventing small sludge particles from adhering to the structure for processing large waste particles. Specifically, the small sludge particles are separated into the screening rollers by the screening holes on their surface contacting the sludge at the top through a separation motor. The small sludge particles are then guided to the side absorption pipe position by a guide plate spiral. The two screening rollers are set at different heights so that the sludge accumulates at the height difference and is fully screened by the screening rollers. The screening holes of the screening rollers are cleared by a reciprocating anti-clogging brush. The two screening rollers are elastically sealed by a first limit seat, a second limit seat, and a sponge to prevent sludge from seeping to the bottom, effectively screening the sludge and preventing small sludge particles from adhering to the area around the screening rollers.

[0016] 2. The first and second limiting seats are spliced ​​together by the cooperation of the third arc-shaped part and the first arc-shaped part, as well as the cooperation of the protrusion and the concave part, to elastically support the top screening roller. The threaded holes on both sides of the first and second limiting seats are connected to the bucket with bolts, which makes it easy to disassemble and replace the worn first or second limiting seat. The sponge between the two screening rollers can also be hooked out from the outside and filled with new sponge from the inside using a hook tool, which is convenient to use.

[0017] 3. The wear-resistant plate is horizontally fixed by a limit cover that is detachably installed on the surface of the bucket with bolts, which prevents the wear-resistant plate from moving horizontally. An elastic rubber layer is formed at the contact position between the limit cover and the wear-resistant plate to buffer the wear-resistant plate and avoid frequent collisions with the limit cover when the wear-resistant plate is rubbed by the garbage being crushed, which would cause damage to the limit cover.

[0018] 4. The waste is cut by the cutting edge of the spiral cutter. The cutting edge is a double spiral structure with the same length and opposite direction. The debris generated during cutting moves along the spiral and gathers at the center of the spiral cutter. It is then blown down by the blower at the top, which prevents the debris from adhering and accumulating and affecting the cutting.

[0019] 5. The rotation of the bidirectional threaded rod drives the two hollow motors to move in opposite directions. When the hollow motors move towards the center, the bristles of the concentrated broom face downwards. After the pressure switch contacts at the center position, the bidirectional threaded rod rotates in the opposite direction to control the two hollow motors to move towards both ends. At the same time, the hollow motors start working, controlling the bristles of the concentrated broom to face upwards to avoid sweeping the garbage concentrated in the center to the sides. The bristles can sweep the garbage located at the bottom of the bucket, making it less likely to accumulate at the bottom.

[0020] 6. By rotating the motor to drive the robotic arm to rotate counterclockwise, the front end of the bucket tilts upwards, and under the influence of gravity, the silt is guided to move into the bucket, thus preventing some silt from accumulating at the bottom of the bucket and not moving inwards after the bucket has been operating horizontally for a period of time.

[0021] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0022] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of the present invention and other related contents, and should not be considered as limitations on the present invention.

[0023] In the accompanying drawings of the instruction manual: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the overall structure of the present invention; Figure 3 This is a schematic diagram of the separation component structure of the present invention; Figure 4 This is an exploded view of the separation component of the present invention; Figure 5 This is a schematic diagram of the disassembly and connection position of the wear-resistant plate of the present invention; Figure 6 This is a schematic diagram of the centralized component structure of the present invention; Figure 7 This is a schematic diagram of the structure surrounding the robotic arm of the present invention; Figure label: 1. Body; 11. Side absorption pipe; 12. Central absorption pipe; 13. Robotic arm; 14. Fixing frame; 15. Rotary motor; 16. Synchronizing rod; 2. Bucket; 21. Scraper section; 22. Wear-resistant plate; 23. Limiting cover; 3. Separation assembly; 31. Separation motor; 32. Screening roller; 33. Discharge end; 34. Guide plate; 35. First limiting seat; 351. First arc-shaped part; 352. Protrusion; 36. Second limiting seat; 361. Second arc-shaped part; 362. Third arc-shaped part; 363. Concave part; 37. Sponge; 38. Threaded hole; 4. Anti-clogging brush; 5. Drive screw; 6. Roller; 7. Spiral cutter; 8. Blower; 9. Centralizing assembly; 91. Centralizing motor; 92. Bidirectional threaded rod; 93. Connecting shaft; 94. Hollow motor; 95. Centralizing broom; 96. Pressure switch. Detailed Implementation

[0024] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0025] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] like Figures 1 to 7 As shown, a municipal road dredging device includes a vehicle body 1 and a bucket 2. The bucket 2 is rotatably mounted on the vehicle body 1. The front end of the bucket 2 forms a scraper section 21. Starting from the scraper section 21, a separation component 3, a rolling roller 6, a spiral cutter 7, and a concentrating component 9 are arranged sequentially on the bucket 2 from the outside to the inside. The vehicle body 1 is provided with a side absorption pipe 11 and a central absorption pipe 12. The adsorption end of the side absorption pipe 11 is connected to the separation component 3 to absorb the small particles of sludge separated by the separation component 3. The adsorption end of the central absorption pipe 12 is connected to the inner wall of the bucket 2 to absorb the large particles of garbage concentrated by the concentrating component 9.

[0027] The separation component 3 includes a screening roller 32. The surface of the screening roller 32 is arranged in a circumferential array to form multiple screening holes. The size of the screening holes is set to 3 to 5 mm to allow small particles of sludge to flow into the screening roller 32 while leaving large particles of gravel, leaves, and other garbage on the surface. One side of the screening roller 32 is the discharge end 33, which is connected to the adsorption end of the absorption pipe 11. A guide plate 34 is provided inside the screening roller 32. The guide plate 34 is spiral-shaped to guide the small particles of sludge inside the screening roller 32 to flow toward the discharge end 33. A separation motor 31 is provided on the side wall of the shovel head 2. The drive end of the separation motor 31 is fixedly connected to the other side of the screening roller 32 to drive the screening roller 32 to rotate and screen.

[0028] The number of screening rollers 32 is two. The separation assembly 3 also includes a first limiting seat 35 and a second limiting seat 36. The first limiting seat 35 includes a first arc-shaped portion 351 and a protrusion 352. The first arc-shaped portion 351 is in contact with the surface of one screening roller 32. The second limiting seat 36 includes a second arc-shaped portion 361, a third arc-shaped portion 362 and an inner concave portion 363 that is spliced ​​with the protrusion 352. The third arc-shaped portion 362 and the first arc-shaped portion 351 are at the same horizontal height and are spliced ​​together to form a semi-circular structure. The second arc-shaped portion 361 is located above the third arc-shaped portion 362 and is in contact with the surface of the other screening roller 32, thereby creating a height difference between the two screening rollers 32, accumulating sludge between the two screening rollers 32 to facilitate the rotation and screening of the two screening rollers 32.

[0029] A wear-resistant rubber layer is formed on the surface of the first limiting seat 35 and the second limiting seat 36. When the screening roller 32 rotates against the friction of the wear-resistant rubber layer, the sludge on its top will not seep down along the connection gap under the elastic seal of the wear-resistant rubber layer. The gap between the two screening rollers 32 is also filled with sponge 37. The ends of the first limiting seat 35 and the second limiting seat 36 opposite to the screening roller 32 form threaded holes 38, so as to connect and disassemble them with the inner wall of the bucket 2. The bottom of the screening roller 32 is sealed by the first limiting seat 35, the second limiting seat 36 and the sponge 37 to prevent small particles of sludge from seeping down. When structural wear affects the sealing performance, it can be easily disassembled and replaced.

[0030] A drive screw 5 is installed horizontally above the screening roller 32. The screw end of the drive screw 5 is movably connected to one side wall of the bucket 2, while the motor end is fixed to the other side wall of the bucket 2. An anti-clogging brush 4 is installed on the screw end. A keyway is used between the anti-clogging brush 4 and the screw end to prevent rotation. The bristle diameter of the anti-clogging brush 4 is smaller than the screening control diameter so that it can penetrate into the screening hole to prevent sludge from sticking in the screening hole and affecting subsequent screening.

[0031] The bottom of the bucket 2 has a groove corresponding to the position of the rolling roller 6 and is provided with a wear-resistant plate 22. The side wall of the bucket 2 has an opening corresponding to the position of the wear-resistant plate 22 and is fitted with a limiting cover 23. The end of the limiting cover 23 that contacts the wear-resistant plate 22 is provided with an elastic rubber layer. The other end of the limiting cover 23 is located on the outside of the bucket 2 and is fixed to the bucket 2 by bolts and threads, which facilitates the disassembly and replacement of the wear-resistant plate 22.

[0032] The spiral cutter 7 has a roller body at its axial center and a cutting edge on its surface. The roller body is located between the inner walls of both sides of the bucket 2 and is connected to a drive motor. There are two sets of cutting edges, which are spiral structures in opposite directions and extend the same length from both ends to the center. A Teflon coating is provided on the non-cutting position of the spiral cutter 7 to prevent debris from sticking to the spiral cutter 7 during the movement of the spiral. A blower 8 is provided above the junction of the two sets of cutting edges. The air outlet of the blower 8 is vertically downward. A connecting rod is provided through the blower 8 and fixed between the inner walls of both sides of the bucket 2 by the connecting rod.

[0033] The centralized component 9 includes a centralized motor 91. The output end of the centralized motor 91 is fixed with a bidirectional threaded rod 92, and the other end of the bidirectional threaded rod 92 is fixed with a connecting shaft 93. The connecting shaft 93 is movably disposed inside the bucket 2. The bidirectional threaded rod 92 has two threads of the same length but opposite directions. A movable end is formed on any one of the threads, and a keyway is used between the movable end and the bidirectional threaded rod 92 to prevent rotation. A hollow motor 94 is fixedly disposed on the surface of the movable end. The drive end of the hollow motor 94 is connected to a centralized broom 95. Pressure switches 96 are formed at both ends of the axial direction of the hollow motor 94. The pressure switches 96 are electrically connected to the centralized motor 91 and the hollow motor 94 so that when the pressure switches 96 are pressed from the center position or both ends, the centralized motor 91 and the hollow motor 94 are controlled to work, so that when the centralized broom 95 moves towards the center, the bristles face down, and when it moves to both sides, the bristles face up.

[0034] Two sets of fixed frames 14 are provided at the front end of the vehicle body 1. A mechanical arm 13 is rotatably mounted between the fixed frames 14. A rotary motor 15 is mounted on the fixed frame 14. The drive end of the rotary motor 15 is connected to the mechanical arm 13. The mechanical arm 13 is connected and fixed to the bucket 2. A synchronous rod 16 is connected between the two mechanical arms 13. With the cooperation of the synchronous rod 16, the rotary motor 15 controls the two mechanical arms 13 to rotate synchronously upward, so that the front end of the bucket 2 tilts upward and guides the silt accumulated at the bottom to the rear end for further processing.

[0035] This embodiment also presents the working method of the above-mentioned municipal road dredging device, including the following steps: S1. Before use, check the wear of the first limit seat 35, the second limit seat 36 and the wear plate 22, and disassemble and replace the severely worn components. After checking that everything is correct, proceed to the next step. S2. The scraper section 21 scrapes off the sludge. The sludge is first screened by the lower screening roller 32, and after it accumulates to a certain height, it is screened by the higher screening roller 32. During the process, the anti-clogging brush 4 moves back and forth to brush out the sludge that is blocked in the screening holes. The small particles of sludge screened out are absorbed into the vehicle body 1 by the side absorption pipe 11 under the guidance of the guide plate 34, while the large particles of garbage are transported to the next step. S3. Large particles of waste fall onto the wear-resistant plate 22, are crushed by the crushing roller 6, and are rolled inward to move to the next step; S4. The crushed waste comes into contact with the spiral cutter 7, is chopped, and is conveyed to the next step. The remaining debris is concentrated in the center along the spiral direction and blown off by the blower 8. S5. The two centralized brooms 95 move in opposite directions simultaneously. When they move towards the center, the brushes are in the downward position. After the two centralized brooms 95 collide with each other, the pressure switch 96 controls the centralized brooms 95 to change their moving direction and rotate to the position where the brushes are facing upward, so as to concentrate the garbage to the position of the central absorption pipe 12 and absorb it into the vehicle body 1.

[0036] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from its essential characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A municipal road dredging device, comprising a vehicle body (1) and a bucket (2), characterized in that: The bucket (2) is rotatably mounted on the vehicle body (1). The front end of the bucket (2) forms a scraper section (21). Starting from the scraper section (21), the bucket (2) is provided with a separation component (3), a rolling roller (6), a spiral cutter (7), and a concentrating component (9) in sequence from the outside to the inside. The vehicle body (1) is provided with a side absorption pipe (11) and a central absorption pipe (12). The adsorption end of the side absorption pipe (11) is connected to the separation component (3) to absorb the small particles of sludge separated by the separation component (3). The adsorption end of the central absorption pipe (12) is connected to the inner wall of the bucket (2) to absorb the large particles of garbage concentrated by the concentrating component (9). The separation component (3) includes a screening roller (32), the surface of which is arranged in a circumferential array to form multiple screening holes so that small particles of sludge can flow into the screening roller (32). One side of the screening roller (32) is the discharge end (33), which is connected to the adsorption end of the side absorption pipe (11). A guide plate (34) is provided inside the screening roller (32), which is spiral in shape to guide the sludge in the screening roller (32) to flow toward the discharge end (33). A separation motor (31) is provided on the side wall of the bucket (2), and the drive end of the separation motor (31) is fixedly connected to the other side of the screening roller (32). The number of screening rollers (32) is two. The separation assembly (3) also includes a first limiting seat (35) and a second limiting seat (36). The first limiting seat (35) includes a first arc-shaped part (351) and a protrusion (352). The first arc-shaped part (351) is in contact with the surface of one screening roller (32). The second limiting seat (36) includes a second arc-shaped part (361), a third arc-shaped part (362) and an inner concave part (363) that is spliced ​​with the protrusion (352). The third arc-shaped part (362) and the first arc-shaped part (351) are at the same horizontal height and are spliced ​​together to form a semi-circular structure. The second arc-shaped part (361) is located above the third arc-shaped part (362). The second arc-shaped part (361) is in contact with the surface of the other screening roller (32), thereby creating a height difference between the two screening rollers (32). The spiral cutter (7) has a roller body at its axial center and a cutting edge on its surface. The roller body is located between the inner walls on both sides of the bucket (2) and is connected to a drive motor. There are two sets of cutting edges. The two sets of cutting edges have a spiral structure with opposite directions and extend the same length from both ends to the center. A blower (8) is provided above the junction of the two sets of cutting edges. The centralized component (9) includes a centralized motor (91), the output end of which is fixed with a bidirectional threaded rod (92). The bidirectional threaded rod (92) has two threads of the same length but opposite directions. A movable end is formed on any one of the threads, and a hollow motor (94) is fixedly provided on the surface of the movable end. The drive end of the hollow motor (94) is connected to a centralized broom (95), and pressure switches (96) are formed at both ends of the axial direction of the hollow motor (94).

2. The municipal road dredging device according to claim 1, characterized in that: A wear-resistant rubber layer is formed on the surface of the first limiting seat (35) and the second limiting seat (36). When the screening roller (32) rotates against the friction of the wear-resistant rubber layer, the silt on its top will not seep down along the connection gap under the elastic seal of the wear-resistant rubber layer. The gap between the two screening rollers (32) is also filled with sponge (37). The end of the first limiting seat (35) and the second limiting seat (36) opposite to the screening roller (32) forms a threaded hole (38), so as to be threadedly connected to the inner wall of the bucket (2) for disassembly and fixation.

3. A municipal road dredging device according to claim 2, characterized in that: A drive screw (5) is provided above the horizontal level of the screening roller (32). The screw end of the drive screw (5) is movably connected to one side wall of the bucket (2), while the motor end is fixed on the other side wall of the bucket (2). An anti-clogging brush (4) is provided on the screw end, and the bristles of the anti-clogging brush (4) penetrate into the screening hole of the screening roller (32).

4. A municipal road dredging device according to claim 3, characterized in that: The bottom of the bucket (2) is grooved and a wear-resistant plate (22) is provided at the position corresponding to the rolling roller (6). The side wall of the bucket (2) is opened at the position corresponding to the wear-resistant plate (22) and a limiting cover (23) is embedded therein. The end of the limiting cover (23) in contact with the wear-resistant plate (22) is provided with an elastic rubber layer. The other end of the limiting cover (23) is located outside the bucket (2) and is fixed to the bucket (2) by bolt thread connection.

5. A municipal road dredging device according to claim 4, characterized in that: The front end of the vehicle body (1) is provided with two sets of fixed frames (14), and a mechanical arm (13) is rotatably arranged between the fixed frames (14). A rotating motor (15) is provided on the fixed frame (14), and the driving end of the rotating motor (15) is connected to the mechanical arm (13). The mechanical arm (13) is connected and fixed to the bucket (2). A synchronizing rod (16) is connected between the two mechanical arms (13).

6. The working method of the municipal road dredging device according to claim 5, characterized in that: Includes the following steps: S1. Before use, check the wear of the first limit seat (35), the second limit seat (36) and the wear plate (22), and disassemble and replace the severely worn components. After checking that everything is correct, proceed to the next step. S2, the scraper (21) scrapes off the sludge. The sludge is first rotated and screened by the screening roller (32) at the lower position, and after it accumulates to a certain height, it is screened by the screening roller (32) at the higher position. During the process, the anti-clogging brush (4) moves back and forth to brush out the sludge that is blocked in the screening hole. The small particles of sludge screened out are absorbed into the vehicle body (1) by the side absorption pipe (11) under the guidance of the guide plate (34), while the large particles of garbage are transported to the next step. S3. Large particles of waste fall onto the wear-resistant plate (22), are crushed by the crushing roller (6), and are rolled inward to move to the next step; S4. The crushed waste comes into contact with the spiral cutter (7) and is chopped and conveyed to the next step. The remaining debris is concentrated in the center along the spiral direction and blown off by the blower (8). S5. The two centralized brooms (95) move in opposite directions simultaneously. When they move towards the center, the brushes are in the downward position. After the two centralized brooms (95) collide with each other, the pressure switch (96) controls the centralized brooms (95) to change their moving direction and rotate to the position where the brushes are facing upward, so as to concentrate the garbage to the position of the central absorption pipe (12) and absorb it into the vehicle body (1).

Images