Water conservancy project desilting device convenient to clean

Abstract

The invention provides a hydraulic engineering desilting device convenient to clean, and relates to the technical field of hydraulic engineering desilting, the hydraulic engineering desilting device convenient to clean comprises a main supporting frame, a main slurry conveying pump, side reamer supports and a side connecting frame, the lower portion of the main supporting frame is fixedly connected with the main slurry conveying pump, and the side reamer supports are arranged on the two sides of the main supporting frame; the upper portion of the side reamer support is in axial sliding connection with the side connecting frame, the upper portion of the main supporting frame is rotationally connected with a lower connecting rotating frame in the circumferential direction, the main supporting frame is fixedly connected with an upper sliding groove disc above the lower connecting rotating frame, and outer arc-shaped sliding grooves are formed in the two sides of the upper sliding groove disc. The main supporting frame is rotationally connected with an upper connecting rotating frame in the circumferential direction above the upper sliding groove disc. The distance between the side reamer support and the main slurry conveying pump is changed, the situation that machine halt is caused due to the fact that stones are clamped between the main slurry conveying pump and the reamer rotating head is reduced, and the problem that due to the design of the fixed distance between the reamer and the suction opening, the stones with the large particle size are prone to being clamped between the reamer and the suction opening, and equipment overload machine halt is caused is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy project silt clearing equipment, and in particular to a water conservancy project silt clearing device that is easy to clean. Background Art

[0002] The dredging device of water conservancy projects is a device used to remove sediments (such as silt, sand, and garbage) from the bottom of rivers, lakes, reservoirs and other water bodies. After dredging, the water flow capacity of the river is increased and the silt accumulation is prevented from damaging facilities such as sluice gates and pumping stations.

[0003] The auger and suction system of traditional cutter-suction dredging devices are mostly fixed and rigidly connected, and the operating radius can only cover a range of 1.5 meters around the equipment. For special-shaped areas such as river corners and the bottom of bridge piers, dredging blind spots are often formed, requiring multiple shifting and adjustments. In addition, the fixed spacing design between the auger and the suction port makes it easy for large-diameter stones to get stuck between the two, causing the equipment to overload and shut down. After the device is stuck with stones, it needs to be shut down for manual cleaning by personnel, which increases the workload of personnel. Summary of the Invention

[0004] The present invention provides a dredging device for a water conservancy project that is easy to clean. The telescopic support of the telescopic cylinder is connected to a rotating frame for rotation, and the side reamer bracket and the side connecting frame move circumferentially around the main mud delivery pump, thereby expanding the crushing range of the reamer rotating head for sediment, and further improving the dredging efficiency in dead corner areas such as the periphery of bridge piers and river corners. The side reamer bracket moves closer to or away from the main mud delivery pump while rotating, and the side reamer bracket realizes the change in the size of the distance between the side reamer bracket and the main mud delivery pump, thereby reducing the situation where stones, branches or garbage are stuck between the main mud delivery pump and the reamer rotating head, causing shutdown. The external rotating cleaning frame can scrape and clean the silt attached to the surface of the filter screen, and can shear the entangled branches, fishing nets and other debris to ensure the passability of the lower filter screen guard frame.

[0005] The axle up and down groove at two ends embeds respectively in two guide rails up and down of being made up of the groove on the attachment piece, and the tooth on the attachment piece is meshed with tooth on upper sprocket wheel, the lower sprocket.

[0006] Furthermore, the outer arc chute gradually moves away from the upper chute plate from the starting end to the end, the telescopic rod head end of the telescopic cylinder is rotatably connected to the upper connecting turntable, the telescopic cylinder has a cylinder diameter of 80mm, a stroke of 300mm, and a working pressure of 16MPa.

[0007] Furthermore, the main mud delivery pump adopts a centrifugal pump with a flow rate of 500 to 3000m 3 / h, with a lift of 20 to 50m, the mud is transported to the mud discharge area. A middle silt discharge pipe is provided in the middle of the main mud delivery pump. The outer side of the bottom inlet of the main mud delivery pump is fixedly connected to a lower filter screen guard. The outer side of the lower filter screen guard is rotatably connected to an outer rotating cleaning frame. The outer rotating cleaning frame slides and fits the outer wall of the lower filter screen guard to scrape and clean the silt attached to the surface of the filter screen.

[0008] Furthermore, the lower motor spindle of the side reamer bracket is fixedly connected to the reamer rotating head, the reamer rotating head motor power is 15kW, the rotation speed is 30r / min, the blade hardness is HRC55, the top of the side reamer bracket is slidably connected to the upper connecting slide, and the slide rail gap between the side connecting frame and the side reamer bracket is 0.5mm.

[0009] Furthermore, the upper connecting slide and the side guide slide are slidably connected, and cutter rotating heads are provided on both sides of the lower filter screen guard. The cutter rotating heads rotate to crush the sludge, and the main mud delivery pump is connected to the lower filter screen guard to suck the sludge.

[0010] Furthermore, the lower part of the side connecting frame is fixedly connected to a lower connecting slide bar, which is slidably connected to the lower connecting rotating frame. The upper part of the side connecting frame is fixedly connected to an upper connecting slide bar, which is slidably connected to the upper connecting rotating frame. The bottom of the upper connecting slide bar is fixedly connected to a lower sliding connecting shaft.

[0011] Furthermore, the lower sliding connecting shaft slides inside the outer arc-shaped slide groove, and the gap between the slider of the side connecting frame and the slide rail of the side reamer bracket is 0.5 mm. When the upper connecting rotating frame rotates counterclockwise, the upper connecting rotating frame and the side connecting frame rotate synchronously, and the side connecting frame moves away from the upper connecting rotating frame at the same time, thereby expanding the crushing range of the reamer rotating head for the sediment and realizing the change in the distance between the side reamer bracket and the main mud delivery pump.

[0012] Furthermore, when the side connecting frame moves away from the upper connecting rotating frame, the upper connecting sliding frame and the side reamer bracket move vertically downward, and the reamer rotating head performs crushing work toward deeper sediments.

[0013] The present invention provides a silt removal device for a water conservancy project that is easy to clean, and has the following beneficial effects: The telescopic support of the telescopic cylinder is connected to the rotating frame for rotation, and the side reamer bracket and the side connecting frame move circumferentially around the main mud delivery pump, expanding the crushing range of the reamer rotating head on the sediment, further improving the dredging efficiency, and enhancing the dredging efficiency in blind spots such as around bridge piers and river corners.

[0014] The side reamer bracket rotates and moves closer to or away from the main mud pump. The side reamer bracket changes the distance between the side reamer bracket and the main mud pump, reducing the situation where stones, branches or garbage are stuck between the main mud pump and the reamer rotating head, causing shutdowns. At the same time, the side reamer bracket and the main mud pump move away from each other to expand the distance, expand the operating space, and facilitate the rapid disassembly and cleaning of the reamer rotating head, which is more convenient for maintenance and cleaning when not in use.

[0015] As the side reamer bracket rotates and moves away from the main mud pump as the side connecting frame rotates, the side reamer bracket moves vertically along the side guide slide through the upper connecting slide, and the reamer rotating head moves down below the lower filter guard frame. The reamer rotating head crushes the sediments at deeper depths, further expanding the dredging range. The height difference between the reamer rotating head and the main mud pump is conducive to the rapid extraction of crushed sediment deposition: the reamer rotating head crushes the hard bottom mud, and the crushed sediment quickly flows into the suction area of ​​the main mud pump, increasing the mud solid content to 35%, greatly improving the dredging efficiency.

[0016] The water flow of the main mud conveying pump drives the external rotating cleaning frame to rotate. The external rotating cleaning frame can scrape and clean the silt attached to the surface of the filter screen. The external rotating cleaning frame can also cut the entangled branches, fishing nets and other debris to ensure the passability of the lower filter screen guard and avoid the lower filter screen guard from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings of the present invention.

[0018] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached figure: Figure 1 A schematic diagram showing the overall structure of the present application; Figure 2 A schematic diagram showing the connection structure of the side reamer bracket and the side connecting frame of the present application; Figure 3 A schematic diagram showing the main support frame structure of the present application is shown; Figure 4 A schematic diagram of the upper chute plate structure of the present application is shown; Figure 5A schematic structural diagram showing the connection state of the outer arc chute and the lower sliding connecting shaft of the present application is shown; Figure 6 Shows a schematic structural diagram of the side connecting frame of the present application; Figure 7 Shows a schematic structural diagram of the side reamer bracket of the present application; Figure 8 A structural schematic diagram showing the main support frame, side reamer bracket and side connecting frame of the present application in a separated state is shown.

[0020] Reference numerals: 1. Main support frame; 101. Lower connecting rotating frame; 102. Upper slide plate; 103. Outer arc slide; 104. Upper connecting rotating frame; 105. Upper connecting fixed frame; 106. Side guide slide; 107. Telescopic cylinder; 2. Main mud delivery pump; 201. Middle sludge discharge pipe; 202. Lower filter screen guard; 203. External rotating cleaning frame; 3. Side reamer bracket; 301. Reamer rotating head; 302. Upper connecting slide; 4. Side connecting frame; 401. Lower connecting slide; 402. Upper connecting slide; 403. Lower sliding connecting shaft. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the described 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] This embodiment 1: Please refer to Figures 1 to 8 : The present invention proposes a dredging device for a water conservancy project that is easy to clean, comprising: a main support frame 1, a main mud delivery pump 2, a side reamer bracket 3 and a side connecting frame 4. The upper part of the main support frame 1 is circumferentially connected to a lower connecting rotating frame 101, and the rotational matching clearance between the lower connecting rotating frame 101 and the main support frame 1 is 0.1-0.3mm. The main support frame 1 is fixedly connected to an upper slide plate 102 above the lower connecting rotating frame 101, and outer arc slides 103 are provided on both sides of the upper slide plate 102. The main support frame 1 is circumferentially connected to an upper connecting rotating frame 104 above the upper slide plate 102, and the upper connecting rotating frame 104 is connected to the main support frame 1 through a deep groove ball bearing, with an axial positioning tolerance of ±0.5mm. The top of the main support frame 1 is fixedly connected to an upper connecting fixing frame 105, and both sides of the upper connecting fixing frame 105 are fixedly connected to side guide slides 106. The upper slide plate 102 and the telescopic cylinder 10 The tail end of 7 is rotatably connected, the telescopic cylinder 107 is a hydraulic cylinder structure and is connected to the hydraulic pump of the excavator, the starting end of the outer arc chute 103 gradually moves away from the upper chute plate 102 to the end, the telescopic rod head end of the telescopic cylinder 107 is rotatably connected to the upper connecting turret 104, the cylinder diameter of the telescopic cylinder 107 is 80mm, the stroke is 300mm, the working pressure is 16MPa, the telescopic rod of the telescopic cylinder 107 is extended, the telescopic cylinder 107 pushes the upper connecting turret 104 to rotate counterclockwise around the main support frame 1, the upper connecting turret 104 drives the lower sliding connecting shaft 403 of the side connecting frame 4 to slide along the outer arc chute 103, and the lower sliding connecting shaft 403 moves away from or approaches the main support frame 1 along the outer arc chute 103, realizing the change of the distance between the side reamer bracket 3 and the main mud delivery pump 2, and the distance between the side reamer bracket 3 and the main mud delivery pump 2 is expanded to release the stuck stones, and it can also provide sufficient operating space during maintenance; The lower part of the main support frame 1 is fixedly connected with the main mud delivery pump 2, which is a centrifugal pump with a flow rate of 500 to 3000m 3 / h, with a lift of 20 to 50m, the mud is transported to the mud discharge area. The middle part of the main mud delivery pump 2 is connected with a middle silt discharge pipe 201. The outer side of the bottom inlet of the main mud delivery pump 2 is fixedly connected with a lower filter screen guard 202. The outer side of the lower filter screen guard 202 is rotatably connected with an outer rotating cleaning frame 203. The outer rotating cleaning frame 203 slides and fits the outer wall of the lower filter screen guard 202. The outer rotating cleaning frame 203 can scrape and clean the silt attached to the surface of the filter screen, and can cut the entangled branches, fishing nets and other debris to ensure The lower filter guard 202 is unobstructed, and side reamer brackets 3 are provided on both sides of the main support frame 1. The lower motor main shaft of the side reamer bracket 3 is fixedly connected to the reamer rotating head 301. The motor power of the reamer rotating head 301 is 15kW, the speed is 30r / min, and the blade hardness is HRC55. The top of the side reamer bracket 3 is slidably connected to the upper connecting slide 302. The slide rail gap between the side connecting frame 4 and the side reamer bracket 3 is 0.5mm. The side reamer bracket 3 moves vertically along the side connecting frame 4 by sliding the upper connecting slide 302 along the side guide slide 106. The reamer rotating head 301 moves down below the lower filter screen guard 202, and the reamer rotating head 301 crushes the sediment towards deeper depths. The upper connecting slide 302 is slidably connected to the side guide slide 106. The reamer rotating head 301 is provided on both sides of the lower filter screen guard 202. The reamer rotating head 301 rotates to crush the silt. The main mud delivery pump 2 is connected to the lower filter screen guard 202 to suck the silt, and then the middle silt discharge pipe 201 is connected to the pipeline to discharge the silt. The upper part of the side reamer bracket 3 is axially slidably connected to the side connecting frame 4. The side connecting frame 4 is The lower part is fixedly connected with a lower connecting slide 401, which is slidably connected to the lower connecting rotating frame 101. The upper part of the side connecting frame 4 is fixedly connected with an upper connecting slide 402, which is slidably connected to the upper connecting rotating frame 104. The bottom of the upper connecting slide 402 is fixedly connected with a lower sliding connecting shaft 403. The side reamer bracket 3 and the side connecting frame 4 move circumferentially around the main mud delivery pump 2, expanding the crushing range of the reamer rotating head 301 on the sediment, further improving the efficiency of dredging, and increasing the coverage area of ​​dredging in a single time from 8m2 of traditional equipment. 2 Increased to 15m 2 , especially in blind corners such as around bridge piers and river corners, the dredging efficiency is greatly improved.

[0023] In the embodiment of the present disclosure, the lower sliding connecting shaft 403 slides on the inner side of the outer arc-shaped slide groove 103, and the clearance between the slider of the side connecting frame 4 and the slide rail of the side reamer bracket 3 is 0.5 mm. When the upper connecting rotating frame 104 rotates counterclockwise, the upper connecting rotating frame 104 and the side connecting frame 4 rotate synchronously, and the side connecting frame 4 moves away from the upper connecting rotating frame 104 at the same time, thereby expanding the crushing range of the sediment by the reamer rotating head 301, further improving the dredging efficiency, realizing the change in the distance between the side reamer bracket 3 and the main mud delivery pump 2, reducing the situation where stones and branches or garbage are stuck between the main mud delivery pump 2 and the reamer rotating head 301 and causing shutdown, eliminating the work of manual cleaning of stones by personnel after shutdown, and further reducing the workload of personnel.

[0024] In the disclosed embodiment, when the side connecting frame 4 moves away from the upper connecting rotating frame 104, the upper connecting slide 302 and the side reamer bracket 3 move vertically downward, and the reamer rotating head 301 crushes the sediments toward deeper depths, further expanding the dredging range. The height difference between the reamer rotating head 301 and the main mud delivery pump 2 is conducive to the rapid extraction of the crushed sediment deposition: the reamer rotating head 301 crushes the hard bottom mud at a speed of 30r / min, and the crushed sediment quickly flows into the suction area of ​​the main mud delivery pump 2, thereby greatly improving the dredging efficiency.

[0025] In the second embodiment, on the basis of the first embodiment, the outer rotating cleaning frame 203 is arranged inside the lower filter guard frame 202, the outer rotating cleaning frame 203 is fixedly connected to the centrifugal pump blades of the main mud conveying pump 2, the outer rotating cleaning frame 203 and the main mud conveying pump 2 rotate synchronously, the main structure of the outer rotating cleaning frame 203 remains unchanged, and a metal blade is directly used in the middle of the outer rotating cleaning frame 203. The metal blade cuts off the branches, garbage, etc. stuck in the lower filter guard frame 202 from the inside, and the outer rotating cleaning frame 203 is protected by the lower filter guard frame 202 to prevent the metal blade from being damaged by external stones.

[0026] The working principle of the present invention is as follows: the top of the upper connecting fixing frame 105 is connected and fixed to the big arm of the excavator, the big arm of the excavator controls the main supporting frame 1 and the side reamer bracket 3 to go deep into the water to perform silt removal work, the reamer rotating head 301 rotates to crush the silt, the main mud delivery pump 2 is connected to the lower filter guard frame 202 to suck the silt, and then the middle silt discharge pipe 201 is connected to the pipeline to discharge the silt; the telescopic rod of the telescopic cylinder 107 is extended, and the telescopic cylinder 107 pushes the upper connecting rotating frame 104 to rotate counterclockwise around the main supporting frame 1, and the upper connecting rotating frame 104 drives the lower sliding connecting shaft 403 of the side connecting frame 4 to slide along the outer arc chute 103, and the lower sliding connecting shaft 403 slides along the outer arc chute The outer arc chute 103 moves away from the main support frame 1, causing the side connecting frame 4 to rotate synchronously and move away from the upper connecting rotating frame 104. At the same time, the side reamer bracket 3 and the upper connecting slide 302 move synchronously with the side connecting frame 4 away from the upper connecting rotating frame 104. The upper connecting slide 302 descends vertically along the side guide slide 106, driving the reamer rotating head 301 to operate close to the riverbed, forming a three-dimensional working space, so that the coverage area of ​​a single dredging is further expanded; the side reamer bracket 3 and the side connecting frame 4 move circumferentially around the main mud delivery pump 2, expanding the crushing range of the reamer rotating head 301 for the sediment, further improving the efficiency of dredging, and increasing the coverage area of ​​a single dredging from 8m2 of traditional equipment. 2 Increased to 15m 2 , especially for the dredging efficiency in dead corners such as around bridge piers and river corners, the side reamer bracket 3 moves closer to or away from the main mud delivery pump 2 while rotating, so as to change the size of the distance between the side reamer bracket 3 and the main mud delivery pump 2, thereby reducing the situation where stones, branches or garbage are stuck between the main mud delivery pump 2 and the reamer rotating head 301 and cause the machine to stop, eliminating the need for personnel to manually clean stones after shutdown, reducing the workload of personnel, and at the same time, the side reamer bracket 3 and the main mud delivery pump 2 move away from each other to expand the distance, expand the operating space, and facilitate the quick disassembly and cleaning of the reamer rotating head 301, making it more convenient for maintenance and cleaning when not in use; As the side reamer bracket 3 rotates and moves away from the main mud pump 2 as the side connecting frame 4 rotates, the upper connecting slide 302 slides along the side guide slide 106, and the side reamer bracket 3 moves vertically along the side connecting frame 4, and the reamer rotating head 301 moves down below the lower filter guard frame 202. The reamer rotating head 301 crushes sediments at deeper depths, further expanding the dredging range. When the reamer rotating head 301 moves down to 300 mm below the lower filter guard frame 202, the height difference between the reamer rotating head 301 and the main mud pump 2 is conducive to quickly extracting the crushed sediment: the reamer rotating head 301 crushes the hard bottom mud at a speed of 30 r / min, and the crushed sediment quickly flows into the suction area of ​​the main mud pump 2. The mud solid content is increased to 35%, which is higher than the average value of 20% of traditional equipment, and the dredging efficiency is greatly improved. The water flow of the main mud conveying pump 2 drives the outer rotating cleaning frame 203 to rotate. The lower filter screen guard frame 202 adopts a 10mm aperture high manganese steel filter screen, and cooperates with the carbide blade of the outer rotating cleaning frame 203. The outer rotating cleaning frame 203 can scrape and clean the silt attached to the surface of the filter screen, and the outer rotating cleaning frame 203 can cut the entangled branches, fishing nets and other debris to ensure the passability of the lower filter screen guard frame 202 and avoid the lower filter screen guard frame 202 being blocked by stones or aquatic plants.

[0027] In this article, there are several points to note: 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure. Other structures can refer to general designs.

[0028] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0029] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A desilting device for a water conservancy project that is easy to clean, comprising: A main support frame (1), a main mud delivery pump (2), a side reamer bracket (3) and a side connecting frame (4); characterized in that the main mud delivery pump (2) is fixedly connected to the lower part of the main support frame (1), side reamer brackets (3) are provided on both sides of the main support frame (1), the upper part of the side reamer bracket (3) and the side connecting frame (4) are axially slidably connected, the upper part of the main support frame (1) is circumferentially connected to the lower connecting rotating frame (101), and the main support frame (1) is connected to the upper part of the lower connecting rotating frame (101). The main support frame (1) is fixedly connected to an upper chute plate (102), and outer arc chute (103) is provided on both sides of the upper chute plate (102). The main support frame (1) is circumferentially rotatably connected to an upper connecting rotating frame (104) above the upper chute plate (102). The top of the main support frame (1) is fixedly connected to an upper connecting fixed frame (105), and both sides of the upper connecting fixed frame (105) are fixedly connected to side guide slides (106). The upper chute plate (102) and the tail end of the telescopic cylinder (107) are rotatably connected.

2. The water conservancy project desilting device that is easy to clean according to claim 1 is characterized in that: The outer arc-shaped chute (103) gradually moves away from the upper chute plate (102) from the starting end to the end, and the telescopic rod head end of the telescopic cylinder (107) is rotatably connected to the upper connecting rotating frame (104).

3. The water conservancy project desilting device that is easy to clean according to claim 1 is characterized in that: A middle sludge discharge pipe (201) is provided in communication with the middle of the main mud delivery pump (2), a lower filter screen guard (202) is fixedly connected to the outer side of the bottom inlet of the main mud delivery pump (2), an outer rotating cleaning frame (203) is rotatably connected to the outer side of the lower filter screen guard (202), and the outer rotating cleaning frame (203) is slidably fitted to the outer wall of the lower filter screen guard (202).

4. The water conservancy project desilting device that is easy to clean according to claim 1 is characterized in that: The lower motor main shaft of the side reamer bracket (3) is fixedly connected to the reamer rotating head (301), and the top of the side reamer bracket (3) is slidably connected to an upper connecting slide (302).

5. The water conservancy project desilting device that is easy to clean according to claim 4, characterized in that: The upper connecting slide (302) and the side guide slide (106) are slidably connected, and a reamer rotating head (301) is provided on both sides of the lower filter screen guard (202).

6. The water conservancy project desilting device that is easy to clean according to claim 5, characterized in that: The lower portion of the side connecting frame (4) is fixedly connected to a lower connecting slide bar (401), and the lower connecting slide bar (401) is slidably connected to the lower connecting rotating frame (101). The upper portion of the side connecting frame (4) is fixedly connected to an upper connecting slide bar (402), and the upper connecting slide bar (402) is slidably connected to the upper connecting rotating frame (104). The bottom of the upper connecting slide bar (402) is fixedly connected to a lower sliding connecting shaft (403).

7. The water conservancy project desilting device that is easy to clean according to claim 6, characterized in that: The lower sliding connecting shaft (403) slides inside the outer arc-shaped sliding groove (103), and when the upper connecting rotating frame (104) rotates counterclockwise, the upper connecting rotating frame (104) and the side connecting frame (4) rotate synchronously, and the side connecting frame (4) moves away from the upper connecting rotating frame (104) at the same time.

8. The water conservancy project desilting device that is easy to clean according to claim 6, characterized in that: When the side connecting frame (4) moves away from the upper connecting rotating frame (104), the upper connecting slide (302) and the side reamer bracket (3) move vertically downward.

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