Sludge cutter suction mechanism of buried culvert dredging device

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to a sludge cutter suction mechanism of an embedded culvert desilting device, which comprises a cutter suction assembly, the embedded culvert desilting device comprises a shell and a walking device, and a connecting arm is arranged at the front end of the shell. The cutter suction assembly comprises a bucket, a first stepping motor, a slurry pump, a first blow-off pipe, a second blow-off pipe and a sludge conveying pipe, the bucket is hinged to the connecting arm, an electric push rod is further hinged between the bucket and the connecting arm, a sludge outlet is formed in the rear wall of the bucket, an auger is rotationally connected into the bucket, a grid mesh is arranged at the front end of the bucket, and the first stepping motor and the second stepping motor are arranged in the grid mesh. An output shaft of the first stepping motor is in transmission connection with the auger, the first blow-off pipe and the second blow-off pipe are connected with an outlet of the slurry pump, and the sludge conveying pipe is connected with an inlet of the slurry pump and connected with a sludge outlet of the bucket. The dredging device combines the advantages of shoveling and sucking type dredging and stirring type dredging, has the silt stirring and sucking functions, can provide auxiliary propelling power for the buried culvert dredging device, and improves the adaptability.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and in particular relates to a sludge suction mechanism of a culvert silt removal device. Background Art

[0002] Rapid urban development has led to the covering of rivers, water systems and drainage ditches by buildings, and culverts have become an important solution. The so-called culvert refers to a hole with fill on the top, and the minimum fill thickness should be greater than 50cm, which is suitable for high embankments and deep ditches. With the acceleration of urbanization, the number and length of culverts have also increased, so dredging of culverts has become a challenge.

[0003] At present, the main methods of dredging culverts include mechanical dredging, manual dredging, hydraulic flushing, chemical dredging, vacuum suction, robot dredging, etc. Among them, when using underwater dredging robots for dredging, two tasks need to be completed, one is the collection of sludge, and the other is the transportation of sludge. For the collection of sludge, the general method is to use a sludge recovery pipe to suck away the sludge and use a pump to transport the sludge to a unified collection point. In the collection process, high-pressure water gun impact and rotating blade cutting and cleaning methods are usually used. High-pressure water guns have a large demand for water, high water resource consumption, and a large impact on the environment; although the rotating blade can have a sufficient crushing effect, the blade is easy to wear and needs to be replaced frequently, and the maintenance cost is high.

[0004] Therefore, there is an urgent need for a sludge suction mechanism for a culvert dredging device to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned defects in the prior art, the utility model provides a sludge suction mechanism of a culvert dredging device, including a suction assembly, wherein the culvert dredging device includes a shell and a walking device, two connecting arms are arranged on the left and right sides of the front end of the shell, and the walking device is arranged under the shell to drive the shell to move; the suction assembly includes a bucket, a first stepper motor, a slurry pump, a first sewage pipe, a second sewage pipe and a sludge transmission pipe, the bucket is located at the front side of the shell, the middle part of the rear end of the bucket is hinged to the two connecting arms of the shell, and an electric push rod is hinged between the upper part of the rear end of the bucket and the corresponding connecting arms, a circular mud outlet is opened at the middle position of the rear wall of the bucket, and the internal rotation of the bucket is connected to a transversely arranged auger, the auger includes a rotating shaft and blades arranged on the rotating shaft, and a grid is arranged at the front end of the bucket, and the cross-section of the grid It is triangular in shape, and the grid can not only reduce the disturbance range of the auger and improve the dredging ability, but also prevent the auger from causing secondary pollution to the surrounding waters; the first stepper motor is fixedly arranged on the outside of one end of the bucket, and the output shaft of the first stepper motor is drivingly connected to the rotating shaft of the auger, the slurry pump, the first sewage pipe and the second sewage pipe are all arranged in the shell, the front end of the first sewage pipe is connected to one of the outlets of the slurry pump, and the rear end of the first sewage pipe passes through the shell backwards, the second sewage pipe is located below the first sewage pipe, the front end of the second sewage pipe is connected to the other outlet of the slurry pump, and the rear end of the second sewage pipe passes downwards out of the shell, and the first sewage pipe and the second sewage pipe are both provided with electromagnetic water valves, the rear end of the sludge transmission pipe passes through the front end of the shell and is connected to the inlet of the slurry pump, and the front end of the sludge transmission pipe is connected to the mud outlet of the bucket through a hose.

[0006] Optionally, the blades on the auger adopt a bidirectional spiral structure.

[0007] Specifically, the double-helix blades facilitate the transportation of sludge to the middle of the auger, thereby facilitating the discharge of sludge from the sludge outlet.

[0008] Optionally, a grille cover is provided at the mud outlet of the bucket.

[0009] Specifically, the grille cover is round with a small square hole in the middle, which can effectively intercept debris, protect equipment and avoid blockage.

[0010] Optionally, the shell adopts a fully enclosed waterproof shell, the electric push rod adopts a waterproof electric push rod, and the first stepper motor and the second stepper motor both adopt waterproof stepper motors.

[0011] Optionally, the walking device includes two walking mechanisms arranged on the left and right sides below the shell, each walking mechanism includes a track, a plurality of walking wheels installed on the track, a second stepper motor for driving the walking wheel to rotate, and a track protection plate arranged outside the walking wheel.

[0012] Specifically, the crawler tracks are lightweight tracks; each walking mechanism has two track protection plates, which are respectively arranged on the left and right sides of the lightweight track, which can reduce the entry of debris to a certain extent and extend the service life of the equipment; a crossbeam is fixedly connected between the two walking mechanisms, and the crossbeam is fixed to the bottom of the base plate, which is used to bear the load of the entire device and transfer the load to the ground through the lightweight track, which can greatly reduce the wear on the inner wall of the culvert, not only improving the service life of the culvert, but also saving repair costs.

[0013] The utility model also includes other components that enable the sludge suction mechanism of a culvert desilting device to function normally, which are all conventional technical means in the field. In addition, the devices or components not limited in the utility model all adopt conventional technical means in the field, such as slurry pumps, stepper motors, electromagnetic water valves, and electric push rods.

[0014] The working principle of the utility model is that the first sewage pipe is first connected to the vehicle-mounted mud and water separation device on the ground through a connecting pipe, and then the culvert dredging device is made to enter the culvert water by controlling the walking device. After arriving at the dredging location, the electric push rod is controlled to stretch and contract the free end to drive the bucket to adjust the up and down angles, and the sludge is shoveled into the bucket. At the same time, the first stepper motor drives the auger to rotate, crush the sludge, crush the debris and solid matter in the sludge into fine particles, and push the sludge to the middle until it is pushed to the mud outlet, and then the crushed sludge is sucked out by a slurry pump, and transported out of the culvert through the first sewage pipe and the connecting pipe, and sent to the vehicle-mounted mud and water separation device for mechanical dehydration; when the culvert dredging device moves to a more complex terrain, such as a slope with a large slope, the power provided by the walking device may be insufficient. At this time, the slurry pump can be controlled to change the absorbed mud or water to be discharged from the second sewage pipe, so as to play an auxiliary propulsion effect, so that the culvert dredging device can adapt to more complex environments and terrains.

[0015] The beneficial effect of the utility model is that, compared with the traditional dredging method, the sludge suction mechanism not only saves water resources and has low maintenance costs, but also combines the advantages of shovel suction and stirring dredging, has the function of crushing and absorbing sludge, and can also provide auxiliary propulsion power for the culvert dredging device to improve adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the cutter suction assembly of the utility model after the grid is removed.

[0019] Figure 3A schematic structural diagram of a culvert dredging device provided in an embodiment of the utility model.

[0020] In the figure: 1. shell, 2. walking device, 3. connecting arm, 4. bucket, 5. first stepper motor, 6. slurry pump, 7. first sewage pipe, 8. second sewage pipe, 9. sludge transmission pipe, 10. electric push rod, 11. grille cover, 12. auger, 13. grid, 14. electromagnetic water valve, 15. hose. DETAILED DESCRIPTION

[0021] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0022] Example

[0023] like Figure 1-3As shown, the embodiment of the utility model provides a sludge suction mechanism of a culvert dredging device, including a suction assembly, wherein the culvert dredging device includes a shell 1 and a walking device 2, two connecting arms 3 are arranged on the left and right sides of the front end of the shell 1, and the walking device 2 is arranged under the shell 1 for driving the shell 1 to move; the suction assembly includes a bucket 4, a first stepper motor 5, a slurry pump 6, a first sewage pipe 7, a second sewage pipe 8 and a sludge transmission pipe 9, the bucket 4 is located at the front side of the shell 1, and the middle part of the rear end of the bucket 4 is connected to the two connecting arms of the shell 1. The connecting arms 3 are hinged, and an electric push rod 10 is hinged between the upper part of the rear end of the bucket 4 and the corresponding connecting arm 3. A circular mud outlet is opened in the middle of the rear wall of the bucket 4, and a circular grille cover 11 is arranged at the mud outlet. A square hole is left in the middle of the grille cover 11, which can effectively intercept debris, protect the equipment and avoid blockage; the inside of the bucket 4 is connected to a transversely arranged auger 12, which includes a rotating shaft and blades arranged on the rotating shaft. The blades on the auger 12 adopt a bidirectional spiral structure. The blades of the double spiral structure are convenient for The silt is transported to the middle of the auger 12, so that the silt is conveniently discharged from the mud outlet; a grid 13 is arranged at the front end of the bucket 4, and the cross section of the grid 13 is triangular. The grid 13 can not only reduce the disturbance range of the auger 12 and improve the dredging ability, but also prevent the auger 12 from causing secondary pollution to the surrounding waters; the first stepper motor 5 is fixedly arranged on the outside of one end of the bucket 4, and the output shaft of the first stepper motor 5 is connected to the rotating shaft of the auger 12. The slurry pump 6, the first sewage pipe 7 and the second sewage pipe 8 are all arranged in the housing 1. The front end of the sewage pipe 7 is connected to one of the outlets of the slurry pump 6, and the rear end of the first sewage pipe 7 passes through the shell 1 backwards. The second sewage pipe 8 is located below the first sewage pipe 7. The front end of the second sewage pipe 8 is connected to the other outlet of the slurry pump 6, and the rear end of the second sewage pipe 8 passes downwards out of the shell 1. Electromagnetic water valves 14 are provided on the first sewage pipe 7 and the second sewage pipe 8. The rear end of the sludge transmission pipe 9 passes through the front end of the shell 1 and is connected to the inlet of the slurry pump 6. The front end of the sludge transmission pipe 9 is connected to the mud outlet of the bucket 4 through a hose 15.

[0024] The walking device 2 includes two walking mechanisms arranged on the left and right sides below the shell 1, each of which includes a track, a plurality of walking wheels installed on the track, a second stepper motor for driving the walking wheel to rotate, and a track protection plate arranged outside the walking wheel.

[0025] It can be understood that the crawler tracks are lightweight; each walking mechanism has two track protection plates, which are respectively arranged on the left and right sides of the lightweight track, which can reduce the entry of debris to a certain extent and extend the service life of the equipment; a crossbeam is fixedly connected between the two walking mechanisms, and the crossbeam is fixed to the bottom of the base plate, which is used to bear the load of the entire device and transfer the load to the ground through the lightweight track, which can greatly reduce the wear on the inner wall of the culvert, not only improving the service life of the culvert, but also saving repair costs.

[0026] In addition, the housing 1 is a fully enclosed waterproof housing, the electric push rod 10 is a waterproof electric push rod, and the first stepper motor 5 and the second stepper motor are both waterproof stepper motors.

[0027] The working principle of the utility model is that the first sewage pipe 7 is first connected to the vehicle-mounted mud and water separation device on the ground through a connecting pipe, and then the culvert dredging device is controlled to enter the culvert water by controlling the walking device 2. After arriving at the dredging location, the electric push rod 10 is controlled to stretch and contract the free end to drive the bucket 4 to adjust the up and down angles, and the sludge is shoveled into the bucket 4. At the same time, the first stepper motor 5 drives the auger 12 to rotate, crush the sludge, crush the debris and solid matter in the sludge into fine particles, and push the sludge to the middle until it is pushed to the mud outlet. Then, the crushed sludge is sucked out by the slurry pump 6, and transported out of the culvert through the first sewage pipe 7 and the connecting pipe, and sent to the vehicle-mounted mud and water separation device for mechanical dehydration; when the culvert dredging device moves to a more complex terrain, such as a slope with a large slope, the power provided by the walking device 2 may be insufficient. At this time, the slurry pump 6 can be controlled to change the absorbed mud or water to be discharged from the second sewage pipe 8, which plays an auxiliary propulsion effect, so that the culvert dredging device can adapt to more complex environments and terrains.

[0028] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A sludge suction mechanism of a culvert dredging device, comprising a suction assembly, the culvert dredging device comprising a housing and a traveling device, two connecting arms are arranged on the left and right sides of the front end of the housing, the traveling device is arranged below the housing, and is used to drive the housing to move, characterized in that: The suction shovel assembly includes a bucket, a first stepper motor, a slurry pump, a first sewage pipe, a second sewage pipe and a sludge transmission pipe. The bucket is located on the front side of the shell. The middle part of the rear end of the bucket is hinged to the two connecting arms of the shell, and an electric push rod is hinged between the upper part of the rear end of the bucket and the corresponding connecting arms. A circular mud outlet is opened in the middle of the rear wall of the bucket. The interior of the bucket is connected to a transversely arranged auger, which includes a rotating shaft and blades arranged on the rotating shaft. A grid is arranged at the front end of the bucket. The first stepper motor is fixedly arranged on the outside of one end of the bucket. The output shaft of the stepper motor is connected to the rotating shaft of the auger, and the slurry pump, the first sewage pipe and the second sewage pipe are all arranged in the shell. The front end of the first sewage pipe is connected to one of the outlets of the slurry pump, and the rear end of the first sewage pipe passes through the shell backwards. The second sewage pipe is located below the first sewage pipe, and the front end of the second sewage pipe is connected to the other outlet of the slurry pump, and the rear end of the second sewage pipe passes downwardly out of the shell. The rear end of the sludge transmission pipe passes through the front end of the shell and is connected to the inlet of the slurry pump, and the front end of the sludge transmission pipe is connected to the mud outlet of the bucket through a hose.

2. The sludge suction mechanism of the culvert desilting device according to claim 1 is characterized by: The blades on the auger adopt a bidirectional spiral structure.

3. The sludge suction mechanism of the culvert dredging device according to claim 2 is characterized by: A grille cover is provided at the mud outlet of the bucket.

4. The sludge suction mechanism of the culvert desilting device according to claim 3 is characterized by: The shell adopts a fully enclosed waterproof shell, the electric push rod adopts a waterproof electric push rod, and the first stepper motor and the second stepper motor both adopt waterproof stepper motors.

5. The sludge suction mechanism of the culvert desilting device according to claim 4 is characterized by: The walking device includes two walking mechanisms arranged on the left and right sides below the shell, each of which includes a crawler track, a plurality of walking wheels installed on the crawler track, a second stepper motor for driving the walking wheel to rotate, and a crawler protection plate arranged outside the walking wheel.

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