Riverbed desilting device

Abstract

The invention provides a riverbed desilting device, and relates to the technical field of hydraulic engineering, the riverbed desilting device comprises a desilting ship, one side of the desilting ship is provided with an excavator bucket in a lifting manner, the bottom of the excavator bucket is provided with an opening, the top of one surface, facing the desilting ship, of the excavator bucket is provided with a sludge discharge port, the excavator bucket is vertically provided with a control cylinder, the excavator bucket is internally provided with a lifting seat in a sliding manner, and the lifting seat is rotatably provided with a sealing plate; a rotating motor is arranged on the bottom face of the lifting base, a limiting protruding rod is arranged on the side face of the telescopic end of the closing plate, a vertical groove, a first arc transition groove, a horizontal groove, a second arc transition groove and an inclined groove are sequentially formed in the inner wall of the side face of the excavator bucket, and the two ends of the first arc transition groove communicate with the bottom end of the vertical groove and the first end of the horizontal groove correspondingly. The two ends of the second arc-shaped transition groove communicate with the second end of the horizontal groove and the bottom end of the inclined groove correspondingly, and the limiting protruding rod is arranged in the vertical groove, the first arc-shaped transition groove, the horizontal groove, the second arc-shaped transition groove and the inclined groove in a sliding manner. The preparation work before dredging can be reduced, and the dredging efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy engineering, and in particular to a riverbed dredging device. Background Art

[0002] my country is a country with many rivers. Water transportation is widely used in many domestic water transportation as a low-cost mode of transportation. However, due to the influence of external factors such as water flow speed and structural stagnation, the riverbed is ups and downs, forming shallows and deep grooves, and the navigation capacity of the river is limited. In order to ensure the normal passage of the waterway, it is necessary to dredge the river.

[0003] At present, the existing dredging methods for shallow river channels in China mainly use the dredging boat. The dredging boat uses the movement of water to excavate and transport underwater earthwork. It loosens the underwater soil layer through mechanical cutting, mixes mud and sand with water, and forms a mud-water mixture of a certain concentration, which is then sucked out through the vacuum generated by the mud pump and then transported to the mud discharge site through the mud discharge pipe. The dredging boat is used for dredging using high tide. The dredging boat enters the place where dredging is required, and the excavator transports the silt on the riverbed, and transports the silt to the auxiliary flatbed boat, which transports the silt to the designated location. The dredging is stopped at low tide.

[0004] The dredging method of the dredging ship has the following defects: before dredging, the underwater silt needs to be cut and then stirred so that the silt and water are mixed to a certain concentration of mud and water before dredging can be performed, and when the dredging ship moves to the next dredging point, the above steps still need to be repeated, resulting in more preparation steps before dredging and lower efficiency. Summary of the invention

[0005] The object of the present invention is to provide a riverbed dredging device, which can reduce the preparatory work before dredging and improve the dredging efficiency.

[0006] The present invention is achieved through the following technical solutions: a riverbed dredging device comprises a dredging boat, a bucket is provided on one side of the dredging boat for lifting, an opening is provided at the bottom of the bucket, a mud discharge port is provided at the top of the side of the bucket facing the dredging boat, a control cylinder is vertically provided on the bucket, a lifting seat is slidably provided in the bucket, the top surface of the lifting seat is connected to the piston rod of the control cylinder, a closing plate is rotatably provided on the bottom surface of the lifting seat, the rotating shaft of the closing plate is horizontally arranged along the length direction of the lifting seat, a rotating motor is provided on the bottom surface of the lifting seat, the rotating motor drives the closing plate to rotate around the rotating shaft, the bottom end of the closing plate is telescopically arranged, and a limited space is provided on the side of the telescopic end of the closing plate The inner wall of the side of the bucket is provided with a vertical groove, a first arc-shaped transition groove, a horizontal groove, a second arc-shaped transition groove and an inclined groove in sequence, the two ends of the first arc-shaped transition groove are respectively connected with the bottom end of the vertical groove and the first end of the horizontal groove, the two ends of the second arc-shaped transition groove are respectively connected with the second end of the horizontal groove and the bottom end of the inclined groove, the vertical groove is located in a position of the side of the bucket away from the dredging ship, the inclined groove is located in a position of the side of the bucket close to the dredging ship, the top of the inclined groove is higher than the bottom edge of the mud discharge port, and the limiting convex rod is slidably arranged in the vertical groove, the first arc-shaped transition groove, the horizontal groove, the second arc-shaped transition groove and the inclined groove.

[0007] Furthermore, the inclined groove is inclined from the top end to the bottom end along a direction away from the dredging vessel.

[0008] Furthermore, a cavity is provided inside the closing plate, an adjustment opening is provided at the bottom of the closing plate, a telescopic plate is slidably provided inside the closing plate, the telescopic plate passes through the adjustment opening, and the limiting protrusion is provided on the side of the telescopic plate.

[0009] Furthermore, a spring is provided at the top of the telescopic plate, and the top of the spring is fixedly connected to the top of the cavity.

[0010] Furthermore, a conveyor belt is arranged between the bucket and the dredging boat, a sliding groove is opened on the side of the conveyor belt along the length direction of the conveyor belt, a fixing rod is arranged at the end of the dredging boat, the fixing rod is slidably arranged in the sliding groove, the first end of the conveyor belt is rotatably connected to a side of the bucket close to the dredging boat, the first end of the conveyor belt is located below the mud discharge port, and the second end of the conveyor belt is located inside the dredging boat.

[0011] Further, a folding guide end bucket is provided between the first end of the conveyor belt and the bucket surface.

[0012] Furthermore, a folding plate is provided between the top surface of the lifting seat and the top end of the bucket.

[0013] Furthermore, a floating seat is provided at the top end of the folding plate, the density of the floating seat is less than the density of water, and the top end of the folding plate is fixedly connected to the bottom surface of the floating seat.

[0014] Furthermore, a limit rod is vertically arranged on the top surface of the lifting seat, a limit hole is provided on the top of the bucket, the limit rod is slidably penetrated through the limit hole, and the limit rod abuts against the inner wall of the folding plate.

[0015] Furthermore, a mud scraper is provided at the bottom edge of the mud discharge port, and the mud scraper abuts against the top surface of the conveyor belt.

[0016] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0017] 1. The present invention provides a curved sliding track groove and a movable closing plate in the bucket, and uses the closing plate to push mud and sand to move in the bucket, and finally discharges them from the mud discharge port, thereby reducing the preparation work before dredging operations, accelerating the dredging speed, and improving the dredging efficiency.

[0018] 2. The present invention movably sets the conveyor belt so that the conveyor belt can automatically adjust its posture according to the different functions of the bucket, which is beneficial to speeding up the dredging work. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the desilting state of the present invention; Figure 2 It is a structural schematic diagram used to show the connection between the digging bucket and the inlet and outlet bucket in the present invention; Figure 3 It is a structural schematic diagram of the end of the dredging ship in the present invention; Figure 4 This is a schematic diagram of the bucket structure of the present invention; Figure 5 It is a structural schematic diagram of the assembly relationship between the lifting seat and the closing plate in the present invention; Figure 6 for Figure 5 A magnified schematic diagram of part A; Figure 7 for Figure 5 A magnified schematic diagram of part B; Figure 8 This is a schematic diagram of the inner wall structure of the bucket used to display the present invention; Fig. 9 It is a schematic diagram of the mud discharge state of the present invention; Figure markings: 1-dredging boat; 11-mud loading trough; 12-filter plate; 13-rodless cylinder; 14-support frame; 15-lifting cylinder; 16-conveyor belt; 161-sliding groove; 17-fixing rod; 18-limiting support rod; 19-folding guide end bucket; 100-mud scraper; 2-bucket; 21-mud discharge port; 22-in and out bucket; 221-hinge shaft; 23-control cylinder; 24-lifting seat; 241-limiting rod; 25-limiting hole; 26-folding plate; 27-floating seat; 28-closing plate; 281-cavity; 29-rotating motor; 200-bevel gear; 210-telescopic plate; 211-spring; 212-limiting convex rod; 220-vertical groove; 230-first arc transition groove; 240-horizontal groove; 250-second arc transition groove; 260-inclined groove. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example The following reference Figure 1-Figure 9 As shown, combined with a specific embodiment, this embodiment further illustrates that a riverbed dredging device is provided, referring to Figure 1 As shown, the dredging vessel 1 includes a mud tank 11 provided inside the dredging vessel 1, a sewage pump and a drainage pipe are installed on the dredging vessel 1, the input end of the sewage pump is connected to the mud tank 11, and the output end of the sewage pump is installed on the drainage pipe. A filter plate 12 is provided on one side of the mud tank 11, and the filter plate 12 is provided at the input end of the sewage pump to separate mud and sand from sewage.

[0023] Reference Figure 1 and Figure 2As shown, a rodless cylinder 13 is installed on the top surface of the dredging ship 1, and the rodless cylinder 13 extends along the length direction of the mud tank 11. A support frame 14 is installed on the piston of the rodless cylinder 13, and a lifting cylinder 15 is vertically installed at one end of the support frame 14 away from the dredging ship 1, and a bucket 2 is fixedly installed on the piston rod of the lifting cylinder 15. The bucket 2 is arranged in a rectangular parallelepiped shape, the interior of the bucket 2 is hollow, and the bottom edge of the bucket 2 is sharp, so as to facilitate insertion into the underwater mud. The first surface of the bucket 2 faces the dredging ship 1, and a mud discharge port 21 is opened in the first surface of the bucket 2. The mud discharge port 21 is located at the top of the bucket 2, and the mud discharge port 21 extends along the length direction of the bucket 2. An inlet and outlet bucket 22 is arranged on the surface of the bucket 2 located at the mud discharge port 21, and the inlet and outlet bucket 22 is provided with a connecting port, and the edge of the connecting port of the inlet and outlet bucket 22 is arranged at an angle, so that the mud and sand in the bucket 2 can flow out from the mud discharge port 21. A hinge shaft 221 is provided on the inlet and outlet bucket 22 .

[0024] Reference Figures 1 to 3 As shown, a conveyor belt 16 is also slidably mounted on the dredging boat 1, and a fixing rod 17 is relatively arranged at the end of the mud tank 11 away from the dredging boat 1, and the fixing rod 17 is arranged horizontally. A sliding groove 161 is provided on the side of the conveyor belt 16, and the sliding groove 161 extends along the length direction of the conveyor belt 16, and the shape of the sliding groove 161 is a waist-shaped groove. The fixing rod 17 is arranged in the sliding groove 161, and the cross section of the end of the fixing rod 17 is circular. A connecting ear is arranged at the first end of the conveyor belt 16, and the connecting ear is rotatably connected to the hinge shaft 221. The height of the first end of the conveyor belt 16 is lower than the bottom edge of the mud discharge port 21. A limiting support rod 18 is arranged on the side protrusion of the dredging boat 1, and the limiting support rod 18 is located below the fixing rod 17. The end of the limiting support rod 18 is arranged obliquely, and the end of the limiting support rod 18 abuts against the bottom surface of the conveyor belt 16, which is used to limit the inclination angle of the conveyor belt 16.

[0025] Reference Figure 1 and Figure 2 As shown, a folding guide end bucket 19 is further provided between the first end of the conveyor belt 16 and the in-and-out bucket 22, and the folding guide end bucket 19 is used to prevent mud and sand from falling from the connection between the conveyor belt 16 and the in-and-out bucket 22. A scraper 100 is provided on one side edge of the folding guide end bucket 19 close to the conveyor belt 16, and the scraper 100 abuts against the top surface of the conveyor belt 16. When mud and sand are discharged from the dredging vessel 1, the conveyor belt 16 is used to transport the mud and sand to the mud discharge port 21, and the scraper 100 is used to separate the mud and sand from the surface of the conveyor belt 16, so that the mud and sand enter the bucket 2 from the mud discharge port 21.

[0026] When the rodless cylinder 13 drives the support frame 14 to move along the end of the dredging vessel 1 toward the inside of the dredging vessel 1, the fixed rod 17 slides relative to the sliding groove 161, so that the conveyor belt 16 is located parallel to the top of the mud tank 11. When the support frame 14 is located at the end of the dredging vessel 1, and the lifting cylinder 15 drives the bucket 2 to descend until the bottom end of the bucket 2 is inserted into the mud, the bucket 2 drives the first end of the conveyor belt 16 to rotate around the hinge shaft 221 during the descent process, and the fixed rod 17 rotates relative to the sliding groove 161, so that the first end of the conveyor belt 16 is lower than the edge of the mud tank 11.

[0027] Reference Figure 4 As shown, a control cylinder 23 is fixedly installed on the top of the bucket 2, and the control cylinder 23 is vertically arranged, and the piston rod of the control cylinder 23 passes through the top surface of the bucket 2. The second surface of the bucket 2 is opposite to the first surface, and the second surface of the bucket 2 is vacant. A lifting seat 24 is lifted and lowered at the second surface of the bucket 2, and the lifting seat 24 extends along the length direction of the bucket 2. A plurality of limit rods 241 are vertically arranged on the top surface of the lifting seat 24, and the length of the limit rods 241 is greater than the maximum distance between the lifting seat 24 and the top of the bucket 2. A plurality of limit holes 25 are opened on the top surface of the bucket 2, and the limit rods 241 are respectively penetrated in the limit holes 25. A folding plate 26 is also arranged at the edge of the top surface of the lifting seat 24, and the inner wall of the folding plate 26 abuts against the limit rod 241. A floating seat 27 is fixedly arranged on the top of the folding plate 26, and the density of the floating seat 27 is less than the density of water.

[0028] Reference Figures 5 to 7 As shown, a rotating shaft is arranged on the bottom surface of the lifting seat 24 along the length direction of the lifting seat 24, and a closing plate 28 is rotatably mounted on the rotating shaft. The closing plate 28 is used to close the second side of the bucket 2. Bevel gears 200 are arranged at both ends of the top of the closing plate 28. A rotating motor 29 is installed on the bottom surface of the lifting seat 24, and a bevel gear 200 is also arranged on the output shaft of the rotating motor 29. The two sets of bevel gears 200 are meshed with each other so that the rotating motor 29 drives the closing plate 28 to rotate around the rotating shaft. An adjustment port is provided at the bottom end of the closing plate 28, and a cavity 281 is provided inside the closing plate 28. The adjustment port is connected to the cavity 281 of the closing plate 28. A telescopic plate 210 is slidably mounted inside the closing plate 28, and a spring 211 is fixedly mounted on the top of the telescopic plate 210. The top of the spring 211 is fixedly connected to the top surface of the cavity 281. Leakage holes are provided through the surfaces of the closing plate 28 and the telescopic plate 210. A limit convex rod 212 is provided on the side protrusion of the telescopic plate 210 .

[0029] Reference Figure 8As shown, a vertical groove 220, a first arc-shaped transition groove 230, a horizontal groove 240, a second arc-shaped transition groove 250 and an inclined groove 260 are provided on opposite sides of the bucket 2. The vertical groove 220 is close to the second side of the bucket 2 and is vertically provided. One end of the first arc-shaped transition groove 230 is connected to the bottom end of the vertical groove 220, and the other end of the first arc-shaped transition groove 230 is connected to one end of the horizontal groove 240. The horizontal groove 240 extends along the width direction of the bucket 2, and the other end of the horizontal groove 240 is connected to one end of the second arc-shaped transition groove 250. The other end of the second arc-shaped transition groove 250 is connected to the bottom end of the inclined groove 260. The bottom end of the inclined groove 260 is away from the first side of the bucket 2 relative to the top end of the inclined groove 260, and the top end of the inclined groove 260 is higher than the bottom edge of the mud discharge port 21.

[0030] The working process of this embodiment is as follows: Figure 1 As shown, when the dredging vessel 1 is performing dredging operations on underwater mud and sand, the rodless cylinder 13 is controlled to move the support frame 14 toward the end of the dredging vessel 1. The lifting cylinder 15 is controlled to place the bucket 2 under the water surface until the bottom edge of the bucket 2 is inserted into the mud and sand. During the descent of the bucket 2, the bucket 2 drives the conveyor belt 16 to change from a horizontal state to an inclined state. The driving control cylinder 23 drives the lifting seat 24 to descend, and the lifting seat 24 drives the closing plate 28 and the telescopic plate 210 to descend until the bottom edge of the telescopic plate 210 is inserted into the mud and sand. During this process, the limiting protrusion 212 on the side of the telescopic plate 210 slides along the vertical groove 220 to the connection of the first arc-shaped transition groove 230.

[0031] The piston rod of the control cylinder 23 is driven to descend, and the rotary motor 29 is controlled to drive the closing plate 28 to rotate around the rotary axis, so that the limiting protrusion 212 slides along the first arc transition groove 230 and the horizontal groove 240 until it moves to the connection between the second arc transition groove 250 and the inclined groove 260. At this time, the closing plate 28 and the telescopic plate 210 close the bottom opening of the bucket 2, so that the mud and sand are located inside the bucket 2.

[0032] The rotation angle of the rotating motor 29 is kept unchanged, the piston rod of the driving control cylinder 23 is raised, and the limiting protrusion 212 on the side of the telescopic plate 210 slides along the inclined groove 260. The telescopic plate 210 and the closing plate 28 drive the mud and sand inside the bucket 2 to move to the mud discharge port 21, and the mud and sand are transferred to the mud tank 11 through the mud discharge port 21 by the conveyor belt 16. The dredging ship 1 uses a sewage pump to discharge water in the mud and sand through the drain pipe.

[0033] Reference Fig. 9As shown, when the dredging vessel 1 discharges mud and sand into the river channel, the bucket 2 is raised to a height higher than the mud tank 11, so that the height of the first end of the conveyor belt 16 is higher than the height of the other end. The mud and sand are transferred to the conveyor belt 16, and the conveyor belt 16 is controlled to rotate in the opposite direction. The conveyor belt 16 transfers the mud and sand to the inlet and outlet bucket 22, and the mud scraper 100 is used to scrape off the mud and sand on the surface of the conveyor belt 16, so that the mud and sand pass through the inlet and outlet bucket 22 and enter the bucket 2, and finally descend to the bottom opening of the bucket 2 to the bottom of the water.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A riverbed dredging device, characterized in that: The dredging vessel (1) comprises a bucket (2) which is arranged on one side of the dredging vessel (1) for lifting, an opening is provided at the bottom of the bucket (2), a mud discharge port (21) is provided at the top of the side of the bucket (2) facing the dredging vessel (1), and a control cylinder (23) is vertically arranged on the bucket (2); A lifting seat (24) is slidably arranged in the bucket (2), the top surface of the lifting seat (24) is connected to the piston rod of the control cylinder (23), and a closing plate (28) is rotatably arranged on the bottom surface of the lifting seat (24), and the rotation axis of the closing plate (28) is horizontally arranged along the length direction of the lifting seat (24); A rotating motor (29) is arranged on the bottom surface of the lifting seat (24), and the rotating motor (29) drives the closing plate (28) to rotate around the rotating axis. The bottom end of the closing plate (28) is telescopically arranged, and a limiting convex rod (212) is arranged on the side of the telescopic end of the closing plate (28); The side inner wall of the bucket (2) is provided with a vertical groove (220), a first arc-shaped transition groove (230), a horizontal groove (240), a second arc-shaped transition groove (250) and an inclined groove (260) in sequence, wherein two ends of the first arc-shaped transition groove (230) are respectively connected to the bottom end of the vertical groove (220) and the first end of the horizontal groove (240), and two ends of the second arc-shaped transition groove (250) are respectively connected to the second end of the horizontal groove (240) and the bottom end of the inclined groove (260). The groove (220) is located at a position on the side of the bucket (2) away from the dredging vessel (1), the inclined groove (260) is located at a position on the side of the bucket (2) close to the dredging vessel (1), the top of the inclined groove (260) is higher than the bottom edge of the mud discharge port (21), and the limiting protrusion (212) is slidably arranged in the vertical groove (220), the first arc-shaped transition groove (230), the horizontal groove (240), the second arc-shaped transition groove (250) and the inclined groove (260).

2. The riverbed dredging device according to claim 1, characterized in that: The inclined groove (260) is inclined from the top end to the bottom end in a direction away from the dredging vessel (1).

3. The riverbed dredging device according to claim 1, characterized in that: A cavity (281) is provided inside the closing plate (28), an adjustment opening is provided at the bottom of the closing plate (28), a telescopic plate (210) is slidably provided inside the closing plate (28), the telescopic plate (210) passes through the adjustment opening, and the limiting convex rod (212) is provided on the side of the telescopic plate (210).

4. The riverbed dredging device according to claim 3, characterized in that: A spring (211) is provided at the top end of the telescopic plate (210), and the top end of the spring (211) is fixedly connected to the top end of the cavity (281).

5. The riverbed dredging device according to claim 1, characterized in that: A conveyor belt (16) is arranged between the bucket (2) and the dredging boat (1); a sliding groove (161) is provided on the side of the conveyor belt (16) along the length direction of the conveyor belt (16); a fixing rod (17) is arranged at the end of the dredging boat (1); the fixing rod (17) is slidably arranged in the sliding groove (161); a first end of the conveyor belt (16) is rotatably connected to a side of the bucket (2) close to the dredging boat (1); the first end of the conveyor belt (16) is located below the mud discharge port (21); and the second end of the conveyor belt (16) is located inside the dredging boat (1).

6. The riverbed dredging device according to claim 5, characterized in that: A folding guide end bucket (19) is provided between the first end of the conveyor belt (16) and the surface of the bucket (2).

7. The riverbed dredging device according to claim 1, characterized in that: A folding plate (26) is provided between the top surface of the lifting seat (24) and the top end of the bucket (2).

8. The riverbed dredging device according to claim 7, characterized in that: A floating seat (27) is provided at the top end of the folding plate (26), the density of the floating seat (27) is less than the density of water, and the top end of the folding plate (26) is fixedly connected to the bottom surface of the floating seat (27).

9. The riverbed dredging device according to claim 8, characterized in that: A limit rod (241) is vertically arranged on the top surface of the lifting seat (24), a limit hole (25) is provided on the top of the bucket (2), the limit rod (241) is slidably inserted into the limit hole (25), and the limit rod (241) abuts against the inner wall of the folding plate (26).

10. The riverbed dredging device according to claim 5, characterized in that: A mud scraper (100) is provided at the bottom edge of the mud discharge port (21), and the mud scraper (100) abuts against the top surface of the conveyor belt (16).

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