A dredging device for canal excavation

Abstract

The application relates to the technical field of dredging machinery, in particular to a dredging device for canal excavation, which comprises a ship body and a digger, wherein the digger is arranged on the ship body; the dredging device further comprises a water isolation sleeve, a lifting assembly, a translation mechanism and a drainage assembly; the lifting assembly is used for driving the water isolation sleeve to lift or lower, so that one end of the water isolation sleeve is vertically inserted into river bottom silt or the water isolation sleeve is lifted away from the water surface; the translation mechanism is used for driving the water isolation sleeve to laterally translate, so as to change the position of the water isolation sleeve inserted into the river bottom silt; and the drainage assembly is used for pumping out the river water on the inner side of the water isolation sleeve, and the digger is used for excavating the river bottom silt from the inner side of the water isolation sleeve; the dredging device for canal excavation separates the river water through the water isolation sleeve, pumps out the water in the water isolation sleeve through the drainage assembly, and then excavates the river bottom silt from the inner side of the water isolation sleeve through the digger; in the process, the bucket of the digger is less disturbed by the water, more silt can be scooped out at a time, and the dredging efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of silt clearing machinery, and in particular to a silt clearing device for canal excavation. Background Art

[0002] As important waterway transportation channels and water resource allocation systems, canals play a vital role in economic development and ecological balance. However, over time, canal bottoms are prone to siltation due to sedimentation. This not only reduces the canal's navigability and water transfer efficiency, but also may affect the safety of the surrounding ecological environment. Therefore, regular canal desilting is necessary.

[0003] Traditional canal dredging methods use a water excavator, such as the one disclosed in CN217460733U. During the dredging process, the bucket of the water excavator extends underwater to excavate the silt. The excavated silt is then lifted out of the water and dumped onto a waiting barge or specialized transport vessel. The vessel, laden with silt, is then transported to a designated location for treatment or disposal.

[0004] As in the above-mentioned technical solution, during the excavation process, since the bucket needs to frequently enter and exit the water surface, the silt is easily washed away by the water flow and redispersed into the water, resulting in less silt shoveled out by the bucket in a single time, and the dredging efficiency is low. Moreover, the silt that flows back into the water will be deposited on the riverbed again after the subsequent excavation work is completed, which greatly reduces the effectiveness of the dredging work. Summary of the Invention

[0005] In view of this, the present invention proposes a dredging device for canal excavation, which separates river water through a water-blocking sleeve, drains the water in the water-blocking sleeve through a drainage assembly, and then uses an excavator to excavate the riverbed silt from the inside of the water-blocking sleeve. During the process, the bucket of the excavator is less disturbed by water, more silt is shoveled out in a single time, and the dredging efficiency is higher. At the same time, the problem of silt backflow and sedimentation is less likely to occur during the excavation process, thereby improving the effectiveness of the dredging work.

[0006] The technical solution of the present invention is achieved as follows:

[0007] The present invention provides a dredging device for canal excavation, comprising a hull and an excavator, wherein:

[0008] The excavator is arranged on the hull;

[0009] It also includes a water-blocking sleeve, a lifting assembly, a translation mechanism and a drainage assembly, wherein:

[0010] The water-blocking sleeve, the lifting assembly, and the drainage assembly are respectively arranged on the translation mechanism, and the translation mechanism is arranged on the hull;

[0011] The lifting assembly is used to drive the water-blocking sleeve to move up and down, so that one end of the water-blocking sleeve is vertically inserted into the riverbed mud or the water-blocking sleeve is lifted out of the water surface;

[0012] The translation mechanism is used to drive the water-blocking sleeve to translate laterally, so as to change the position where the water-blocking sleeve is inserted into the riverbed mud;

[0013] The drainage assembly is used to evacuate the river water inside the water-blocking sleeve, and the excavator excavates the riverbed silt from the inside of the water-blocking sleeve.

[0014] On the basis of the above technical solution, preferably, the translation mechanism includes a linear slide and a mobile platform, wherein:

[0015] The linear slide is fixed to the side of the hull, and the output end of the linear slide is fixedly connected to the mobile platform;

[0016] A through hole is vertically provided on the movable platform, and the water-blocking sleeve vertically passes through the through hole;

[0017] One end of the lifting assembly is fixed on the outer side wall of the water-blocking sleeve, and the other end is fixed on the movable platform.

[0018] On the basis of the above technical solution, preferably, the translation mechanism further includes a walking platform, wherein:

[0019] The walking platform is arranged on the side of the water-blocking sleeve and is fixed on the moving platform.

[0020] On the basis of the above technical solution, preferably, the linear slide includes a guide rail, a slider, a connecting plate, a lead screw, a lead screw pair and a translation motor, wherein:

[0021] Two guide rails are provided, and a slider is slidably provided on each guide rail, and the slider is fixedly connected to the hull;

[0022] One end of the connecting plate is fixedly connected to one of the guide rails, and the other end is fixedly connected to the other guide rail, and the side of the connecting plate away from the guide rail is fixedly connected to the movable platform;

[0023] The lead screw is arranged between the two guide rails and is parallel to each other, and the lead screw is rotatably arranged on the hull;

[0024] The screw pair is screwed onto the screw, and the screw pair is fixedly connected to the connecting plate;

[0025] The translation motor is fixed on the hull, and the output end of the translation motor is transmission-connected to one end of the lead screw.

[0026] On the basis of the above technical solution, preferably, the lifting assembly includes a first rack and a first lifting motor, wherein,

[0027] The first rack is fixed to the side of the water-blocking sleeve;

[0028] The first lifting motor is fixedly arranged on the mobile platform, and the output end of the first lifting motor is engaged with the first rack.

[0029] On the basis of the above technical solution, preferably, the lifting assembly further includes a guide roller, wherein:

[0030] A guide groove is vertically provided on the side of the water-blocking sleeve, and four guide grooves are provided along the circumferential matrix of the water-blocking sleeve, and one guide roller is provided at each guide groove;

[0031] One end of the guide roller is rollingly arranged on the bottom of the corresponding guide groove, and the other end is fixedly connected to the hole wall of the through hole.

[0032] On the basis of the above technical solution, preferably, the drainage assembly includes an electric reel, a water suction pipe, a water pump and a drainage pipe, wherein:

[0033] The electric reel is fixed on the mobile platform;

[0034] The water suction pipe is wound on the electric reel, one end of the water suction pipe is placed in the water-isolating sleeve, and the other end is connected to the water suction port of the water pump;

[0035] The water pump is fixed on the electric winding drum and is fixed relative to the mobile platform, and the water outlet of the water pump is connected to the drain pipe.

[0036] On the basis of the above technical solution, preferably, the drainage assembly further includes a counterweight block, wherein:

[0037] The counterweight block is fixed on one end of the water suction pipe placed in the water-blocking sleeve.

[0038] On the basis of the above technical solution, preferably, the water-blocking sleeve includes a first sleeve, a second sleeve and a first fixing plate, wherein:

[0039] The lower end of the first sleeve is provided with saw teeth, and the upper end is plugged into the lower end of the second sleeve;

[0040] The first fixing plate is arranged below the walking platform, one end of the first fixing plate is connected to the side of the upper end of the first sleeve by bolt fixing, and the other end is connected to the side of the lower end of the second sleeve by bolt fixing.

[0041] On the basis of the above technical solution, preferably, the water-blocking sleeve further includes a second fixing plate, wherein:

[0042] A plurality of second sleeves are arranged vertically, and two upper and lower adjacent second sleeves are plugged into each other and fixedly connected via the second fixing plate;

[0043] The second fixing plate is arranged below the walking platform, and the second fixing plate is connected to the second sleeve by means of bolts.

[0044] The canal dredging device of the present invention has the following advantages over the prior art:

[0045] (1) By setting up a water-blocking sleeve, it is convenient to separate the river water through the water-blocking sleeve, and the water in the water-blocking sleeve is drained through the drainage assembly, and then the riverbed silt is excavated from the inside of the water-blocking sleeve by an excavator. During the process, the bucket of the excavator is less disturbed by water, more silt is shoveled out in a single time, and the dredging efficiency is higher. At the same time, the problem of silt backflow and sedimentation is less likely to occur during the excavation process, thereby improving the effectiveness of the dredging work.

[0046] (2) By setting up a translation mechanism to drive the lifting assembly to translate horizontally, the position of the water-blocking sleeve inserted into the riverbed mud can be changed, which facilitates the cleaning of the mud in front of and on both sides of the bow. The cleaning radius is larger, the number of times the hull moves is reduced, and the dredging efficiency is improved.

[0047] (3) A lifting assembly is provided to drive the water-isolating sleeve to rise and fall, so that one end of the water-isolating sleeve can be vertically inserted into the mud at the bottom of the river or the water-isolating sleeve can be lifted out of the water surface, thereby facilitating the use of the water-isolating sleeve. At the same time, the driving assembly can also make the process of inserting the water-isolating sleeve into the mud smoother. When encountering an obstacle, the lifting assembly drives the water-isolating sleeve to rise and fall repeatedly to enhance the effect of cutting the mud, so that the water-isolating sleeve can be smoothly inserted into the mud.

[0048] (4) By providing saw teeth at the lower end of the first sleeve, the effect of cutting the silt is improved, so that the water-blocking sleeve can be smoothly inserted into the silt.

[0049] (5) By arranging a plurality of second sleeves in the vertical direction, two upper and lower adjacent second sleeves are plugged into each other and fixedly connected by a second fixing plate, which makes disassembly and installation convenient, and facilitates adding or removing the second sleeves according to the depth of the river water, so that the waterproof sleeve reaches an appropriate length, thereby improving the convenience of using the waterproof sleeve.

[0050] (6) The interior of the wall of the water-isolating sleeve is provided with a hollow structure to reduce the weight of the water-isolating sleeve. At the same time, a number of support plates are provided in the hollow structure to maintain the hollow state, so that the water-isolating sleeve is not easily deformed during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0052] Figure 1 A perspective view of a canal excavation dredging device according to the present invention;

[0053] Figure 2 A perspective view of a canal excavation dredging device according to the present invention from another perspective;

[0054] Figure 3 A perspective view of the second sleeve of the present invention;

[0055] Figure 4 A partial top view of a dredging device for canal excavation according to the present invention;

[0056] Figure 5 It is a three-dimensional diagram of the translation mechanism of the present invention;

[0057] Figure 6 A top view of the water-blocking sleeve of the present invention;

[0058] Figure 7 A partial cross-sectional view of the water-blocking sleeve of the present invention;

[0059] Figure 8 This is a diagram of the torque detection architecture of the present invention;

[0060] In the figure: 1. hull; 2. excavator; 3. water-proof sleeve; 4. lifting assembly; 5. translation mechanism; 6. drainage assembly; 7. hull stabilization assembly; 31. first sleeve; 32. second sleeve; 33. first fixing plate; 34. second fixing plate; 35. stud; 36. nut; 37. support plate; 41. first rack; 42. first lifting motor; 43. guide roller; 51. linear slide; 52. mobile platform; 53. walking platform; 61. electric reel; 62. suction pipe; 63. water pump; 64. drainage pipe; 65. counterweight; 71. column; 72. second rack; 73. second lifting motor; 301. guide groove; 302. sawtooth; 501. through hole; 511. guide rail; 512. slider; 513. connecting plate; 514. screw; 515. screw pair; 516. translation motor. DETAILED DESCRIPTION

[0061] The following will be combined with the specific embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0062] like Figure 1-8 As shown, a dredging device for canal excavation of the present invention includes a hull 1, an excavator 2, a water-blocking sleeve 3, a lifting assembly 4, a translation mechanism 5 and a drainage assembly 6.

[0063] The excavator 2 is arranged on the hull 1. The excavator 2 is any excavation machine used for excavation operations in the prior art. The riverbed silt is excavated by the excavator 2. The hull 1 is any transport ship used for transporting sludge in the prior art.

[0064] The water-blocking sleeve 3, the lifting assembly 4 and the drainage assembly 6 are respectively arranged on the translation mechanism 5, and the translation mechanism 5 is arranged on the hull 1; wherein, the lifting assembly 4 is used to drive the water-blocking sleeve 3 to rise and fall, so that one end of the water-blocking sleeve 3 is vertically inserted into the riverbed mud or the water-blocking sleeve 3 is lifted out of the water surface; the translation mechanism 5 is used to drive the water-blocking sleeve 3 to translate horizontally, so as to change the position of the water-blocking sleeve 3 inserted into the riverbed mud; the drainage assembly 6 is used to evacuate the river water inside the water-blocking sleeve 3, and the excavator 2 excavates the riverbed mud from the inside of the water-blocking sleeve 3.

[0065] When the above-mentioned dredging device is used for dredging work in the canal, the hull 1 sails to the excavation position, and the water-blocking sleeve 3 is driven down by the lifting component 4, so that the lower end of the water-blocking sleeve 3 is vertically inserted into the riverbed mud. After insertion, the river water inside the water-blocking sleeve 3 is isolated from the river water in the canal, and then the drainage component 6 is used to pump water to evacuate the river water inside the water-blocking sleeve 3, so that a "waterless environment" is formed inside the water-blocking sleeve 3. After pumping water, the excavator 2 excavates the riverbed mud from the inside of the water-blocking sleeve 3. During the process, the bucket of the excavator 2 is less disturbed by water, and more silt is shoveled out at a single time, so the dredging efficiency is higher. At the same time, the problem of silt backflow and sedimentation is not easy to occur during the excavation process, which improves the effectiveness of the dredging work.

[0066] When it is necessary to dredge the riverbed on both sides of the bow, the water-blocking sleeve 3 is driven to rise through the lifting assembly 4, so that the lower end of the water-blocking sleeve 3 leaves the riverbed mud, or the water-blocking sleeve 3 is lifted off the water surface, and then the water-blocking sleeve 3 is driven to translate horizontally through the translation mechanism 5. After it is in place, the lower end of the water-blocking sleeve 3 is vertically inserted into the riverbed mud, and then water is pumped out, and finally the riverbed mud is excavated from the inside of the water-blocking sleeve 3 by the excavator 2; this structural design increases the dredging radius, facilitates the cleaning of silt on both sides of the bow, reduces the number of movements of the hull 1, and improves the dredging efficiency.

[0067] In addition, in order to reduce the deadweight of the water-blocking sleeve 3 and improve the stability during use, Figure 7 As shown, the interior of the wall of the water-blocking sleeve 3 is a hollow structure, which is used to reduce the weight of the water-blocking sleeve 3. At the same time, a number of support plates 37 are set in the hollow structure to maintain the hollow state so that the water-blocking sleeve 3 is not easily deformed during use.

[0068] In order to further improve the stability of the water-blocking sleeve 3 when in use, the water-blocking sleeve 3 is cylindrical or square. The cylindrical water-blocking sleeve 3 has a smaller water resistance. The legend shows that the water-blocking sleeve 3 is square. The cylindrical water-blocking sleeve 3 is not drawn in the legend. When it is square, as shown in FIG. Figure 6 As shown, the front and rear sides of the square tube are arched in an arc shape to reduce water resistance and improve the stability of the hull in the canal.

[0069] In a dredging device for canal excavation of the present invention, the translation mechanism 5 includes a linear slide 51 and a mobile platform 52, wherein the linear slide 51 is fixed to the side of the hull 1, and the output end of the linear slide 51 is fixedly connected to the mobile platform 52; a through hole 501 is vertically penetrated on the mobile platform 52, and the water-blocking sleeve 3 vertically penetrates the through hole 501; one end of the lifting assembly 4 is fixed on the outer wall of the water-blocking sleeve 3, and the other end is fixed on the mobile platform 52.

[0070] Further, such as Figure 5 As shown, the linear slide 51 includes a guide rail 511, a slider 512, a connecting plate 513, a screw 514, a screw pair 515 and a translation motor 516, wherein the guide rail 511 is an I-rail, which is provided with two, and a slider 512 is slidably provided on each guide rail 511, and the length of the slider 512 is equal to the length of the guide rail 511, and the side of the slider 512 away from the slider 512 is fixedly connected to the hull 1; one end of the connecting plate 513 is fixedly connected to one of the guide rails 511, and the other end is fixedly connected to the hull 1. One end is fixedly connected to the other guide rail 511, and the side of the connecting plate 513 away from the guide rail 511 is fixedly connected to the moving platform 52; the screw 514 is arranged between the two guide rails 511 and parallel to each other, and the screw 514 is rotatably arranged on the hull 1; the screw pair 515 is screwed on the screw 514, and the screw pair 515 is fixedly connected to the connecting plate 513; the translation motor 516 is fixed on the hull 1, and the output end of the translation motor 516 is transmission-connected to one end of the screw 514.

[0071] like Figure 5As shown, a driving sprocket is fixedly provided on the output end of the translation motor 516, and a driven sprocket is provided on the end of the screw 514 close to the translation motor 516. The driving sprocket and the driven sprocket are connected by a chain transmission. When the water-blocking sleeve 3 needs to be translated, the translation motor 516 drives the screw 514 to rotate through a chain transmission, the screw 514 drives the screw pair 515 to translate, the screw pair 515 drives the connecting plate 513 to translate, the connecting plate 513 drives the moving platform 52 to translate, and the moving platform 52 drives the water-blocking sleeve 3 to achieve translation.

[0072] During the translation of the watertight sleeve 3, since the length of the slider 512 is equal to the length of the guide rail 511, the slider 512 and the guide rail 511 will always cooperate effectively, so that when the watertight sleeve 3 moves toward the bow side, the mobile platform 52 and the linear slide 51 are always effectively connected, which is conducive to the stability of the mobile platform 52 after translation, and thus conducive to the stability of the watertight sleeve 3 during use.

[0073] In a canal excavation desilting device of the present invention, the lifting assembly 4 includes a first rack 41 and a first lifting motor 42, wherein, as Figure 2 and Figure 4 As shown, the first rack 41 is fixed to the side of the water-blocking sleeve 3; the first lifting motor 42 is fixed on the mobile platform 52, and the output end of the first lifting motor 42 is engaged with the first rack 41; specifically, the first rack 41 is fixed on both sides of the water-blocking sleeve 3 and one is arranged vertically, and a first lifting motor 42 is arranged on one side of each first rack 41. The first lifting motor 42 is fixed to the mobile platform 52 by bolts. At the same time, a first driving gear is fixed on the output shaft of the first lifting motor 42, and the first driving gear is engaged with the first rack 41. When the first lifting motor 42 is energized, its output shaft drives the first driving gear to rotate, and the first driving gear drives the water-blocking sleeve 3 to rise and fall by engaging with the first rack 41.

[0074] A torque sensor or torque meter can be set on the output shaft of the first lifting motor 42. At the same time, a PLC and a human-machine interactive screen that are matched with the torque sensor or torque meter are set on the hull 1 to detect the change of motor torque to assist workers in judging whether the lower end of the water-blocking sleeve 3 is inserted into the mud, or to control the first lifting motor 42 to automatically stop. Using a torque sensor or torque meter to detect the change of motor torque is an existing technology, such as a torque detection device and a torque detection method disclosed in CN110926675B. During detection, Figure 8As shown, a torque threshold is set, for example, 50 Nm, as the threshold for contacting the river bottom or silt. When the water-blocking sleeve 3 descends, when the torque value monitored by the torque sensor exceeds 50 Nm, it indicates that the water-blocking sleeve 3 has contacted the silt. The torque sensor sends a signal to the PLC. After receiving the signal from the torque sensor, the PLC judges and analyzes it, and controls the first lifting motor 42 to stop running, or displays the analysis results on the screen, and the worker manually controls the first lifting motor 42 to stop running.

[0075] like Figure 4 As shown, in order to improve the smoothness of the lifting and lowering of the water-blocking sleeve 3, the lifting assembly 4 also includes a guide roller 43, wherein a guide groove 301 is vertically provided on the side of the water-blocking sleeve 3. Specifically, four guide grooves 301 are provided along the circumferential matrix of the water-blocking sleeve 3, and a guide roller 43 is provided at each guide groove 301; one end of the guide roller 43 is rolled on the bottom of the corresponding guide groove 301, and the other end is fixedly connected to the wall of the through hole 501. When the water-blocking sleeve 3 is lifted and lowered, the guide roller 43 rolls on the bottom of the guide groove 301.

[0076] In a canal excavation desilting device of the present invention, the drainage assembly 6 includes an electric reel 61, a water suction pipe 62, a water pump 63 and a drainage pipe 64, wherein Figure 1 and Figure 4 As shown, the electric winding reel 61 is fixed on the mobile platform 52; the water suction pipe 62 is wound on the electric winding reel 61, one end of the water suction pipe 62 is placed in the waterproof sleeve 3, and the other end is connected to the water suction port of the water pump 63; the water pump 63 is fixed on the electric winding reel 61 and is fixed relative to the mobile platform 52, and the water outlet of the water pump 63 is connected to the drain pipe 64.

[0077] Specifically, the electric reel 61 is any automatic reeling device in the prior art, which includes a bracket, a reel, and a winding motor. The reel and the winding motor are installed on the bracket, and the bracket is fixed on the mobile platform 52. The reel is used to wind the water suction pipe 62. The winding motor is used to drive the reel to rotate and is used for reeling and unreeling the water suction pipe 62. The water pump 63 and the drain pipe 64 are fixed on the bracket, and the drain pipe 64 is connected to one end of the water suction pipe 62.

[0078] When water needs to be pumped, the winding motor drives the reel to rotate, lowering one end of the suction pipe 62 into the waterproof sleeve 3. After the water pump 63 is turned on, the water in the waterproof sleeve 3 is sucked out through the suction pipe 62 and discharged back into the canal through the drainage pipe 64.

[0079] As the water level drops, the winding motor drives the reel to continue unwinding. After the water is pumped out, the winding motor drives the reel to rewind, so that the suction pipe 62 returns to its original position.

[0080] like Figure 3As shown, in order to prevent the water suction end of the water suction pipe 62 from floating, a counterweight block 65 is fixed on one end of the water suction pipe 62 placed in the waterproof sleeve 3. When pumping water, the counterweight block 65 ensures that the water suction end of the water suction pipe 62 is always submerged in water, thereby improving the pumping effect.

[0081] In a canal excavation and desilting device of the present invention, the water-blocking sleeve 3 includes a first sleeve 31, a second sleeve 32 and a first fixing plate 33, wherein Figure 1 As shown, the lower end of the first sleeve 31 is provided with a sawtooth 302 for cutting the silt, which facilitates the insertion of the water-blocking sleeve 3 into the silt. The sawtooth 302 adopts a detachable design to facilitate later replacement; the upper end of the first sleeve 31 is plugged into the lower end of the second sleeve 32; the first fixed plate 33 is arranged below the walking platform 53, and one end of the first fixed plate 33 is connected to the side of the upper end of the first sleeve 31 by means of bolts, and the other end is connected to the side of the lower end of the second sleeve 32 by means of bolts.

[0082] When the length of the first sleeve 31 meets the water depth, the second sleeve 32 does not need to be installed on the top of the first sleeve 31. When the water level is deeper and the second sleeve 32 needs to be installed, the second sleeve 32 is lifted by the excavator 2 and lifted above the first sleeve 31. The worker stands on the walking platform 53 to connect the upper end of the first sleeve 31 with the lower end of the second sleeve 32, and then uses the first fixing plate 33 to fix the upper end of the first sleeve 31 with the lower end of the second sleeve 32, wherein the first fixing plate 33 is provided on both sides of the first sleeve 31.

[0083] In order to facilitate the connection between the upper end of the first sleeve 31 and the lower end of the second sleeve 32, an annular protrusion is provided on the upper end surface of the first sleeve 31, and an annular groove is provided on the lower end surface of the second sleeve 32. When the annular protrusion is inserted into the annular groove, the upper end of the first sleeve 31 and the lower end of the second sleeve 32 are connected. The annular protrusion is a rubber protrusion, and a seal is formed after the annular protrusion and the annular groove are connected, so that the connection between the first sleeve 31 and the second sleeve 32 is not easy to leak.

[0084] In order to enable the water-blocking sleeve 3 to be used in deeper canals, the water-blocking sleeve 3 also includes a second fixing plate 34, wherein several second sleeves 32 are arranged vertically, and two upper and lower adjacent second sleeves 32 are plugged into each other and fixedly connected through the second fixing plate 34; the second fixing plate 34 is arranged below the walking platform 53, and the second fixing plate 34 is connected to the second sleeve 32 by bolts.

[0085] like Figure 3As shown, an annular protrusion is also provided on the upper end surface of the second sleeve 32, and the annular protrusion is a rubber protrusion. When it is necessary to further lengthen the water-blocking sleeve 3, the second sleeve 32 to be lengthened is lifted to the top of the second sleeve 32 in use by an excavator 2, and the rubber protrusion on the top of the lower second sleeve 32 is inserted into the annular groove at the bottom of the second sleeve 32, and then the two second sleeves 32 are fixedly connected using a second fixing plate 34. According to the water depth, an excavator 2 with a suitable arm length is used on the hull 1, that is, a short-arm excavator 2 can be used in shallow water, and a long-arm excavator 2 can be used in deep water.

[0086] like Figure 1 and Figure 2 As shown, in order to facilitate the installation of the first fixed plate 33 and the second fixed plate 34, a walking platform 53 is set on each side of the mobile platform 52, wherein the two walking platforms 53 are symmetrically arranged on both sides of the water-blocking sleeve 3 and fixed on the mobile platform 52. At the same time, the mobile platform 52 does not contact the water-blocking sleeve 3. The walking platform 53 is used for people to walk. When the second sleeve 32 needs to be installed, the worker stands on the walking platform 53 to install the second fixed plate 34 or the first fixed plate 33, which is safer and more convenient; at the same time, in the lifting assembly 4, after the first lifting motor 42 is installed, it is located below the walking platform 53, which is convenient for maintenance of the first lifting motor 42 and the first rack 41 through the mobile platform 52, and also convenient for maintenance of the guide groove 301.

[0087] Further, such as Figure 7 As shown, in order to facilitate the installation of the first fixing plate 33 and the second fixing plate 34, studs 35 are welded on the outer wall of the water-blocking sleeve 3. Specifically, studs 35 are welded on the first sleeve 31 and the second sleeve 32. The first fixing plate 33 and the second fixing plate 34 are installed through the studs 35. The first fixing plate 33 and the second fixing plate 34 are provided with matching holes for the studs 35 to pass through. During installation, the first fixing plate 33 and the second fixing plate 34 are installed on the studs 35 at the corresponding positions through the matching holes, and then the nuts 36 are installed on the studs 35 and tightened to fix the first fixing plate 33 and the second fixing plate 34.

[0088] In addition, in the canal dredging device of the present invention, in order to ensure the stability of the hull during dredging, a plurality of hull stabilizing components 7 are provided on both sides of the hull 1. Figure 2 Two hull stabilizing components 7 are shown on both sides of the bow. A hull stabilizing component 7 can also be set at the bow, stern and both sides of the middle of the ship. When digging, one end of the hull stabilizing component 7 extends downward and inserts into the riverbed mud or against the riverbed to stabilize the hull. When sailing, the extended end of the hull stabilizing component 7 returns to its original position.

[0089] like Figure 2As shown, the hull stabilizing assembly 7 is a telescopic rod mechanism. Specifically, the hull stabilizing assembly 7 includes a column 71, a second rack 72 and a second lifting motor 73, wherein the column 71 is vertically slidably arranged on the hull 1. The column 71 can be arranged on the side of the hull 1 or vertically penetrate the hull 1; the second rack 72 is vertically fixedly arranged on the side of the column 71; the second lifting motor 73 is fixed on the hull 1, and a second driving gear is fixedly arranged on the output end of the second lifting motor 73. The second driving gear is engaged with the second rack 72 to drive the column 71 to rise and fall.

[0090] The above-mentioned torque sensor or torque meter can also be set on the output shaft of the second lifting motor 73 to detect the change of motor torque.

[0091] The method of using the canal excavation dredging device of the present invention is as follows:

[0092] First, the excavator 2 is docked at the bow, and the hull 1 sails to the dredging position. The hull is stabilized by the hull stabilizing component 7 against the riverbed, and then the length of the watertight sleeve 3 is adjusted according to the water depth. During the adjustment, the watertight sleeve 3 is driven to descend by the lifting component 4. During the descent, the second sleeve 32 is added according to the actual situation to make the length of the watertight sleeve 3 meet the water depth requirement. When the lower end of the watertight sleeve 3 is vertically inserted into the riverbed mud, the upper end of the watertight sleeve 3 is above the water surface, and then the river water inside the watertight sleeve 3 is drained through the drainage component 6. After pumping out the water, the riverbed mud is excavated from the inside of the watertight sleeve 3 by the excavator 2.

[0093] When it is necessary to excavate the silt on both sides of the bow, the water-blocking sleeve 3 is driven to rise through the lifting assembly 4, so that the lower end of the water-blocking sleeve 3 leaves the riverbed silt, or the water-blocking sleeve 3 is lifted off the water surface, and then the water-blocking sleeve 3 is driven to translate horizontally through the translation mechanism 5. After it is in place, the lower end of the water-blocking sleeve 3 is vertically inserted into the riverbed silt, and then water is pumped out. Finally, the riverbed silt is excavated from the inside of the water-blocking sleeve 3 by the excavator 2.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dredging device for canal excavation, comprising a hull (1) and an excavator (2), wherein: The excavator (2) is arranged on the hull (1); It is characterized by further comprising a water-blocking sleeve (3), a lifting assembly (4), a translation mechanism (5) and a drainage assembly (6), wherein: The water-blocking sleeve (3), the lifting assembly (4), and the drainage assembly (6) are respectively arranged on the translation mechanism (5), and the translation mechanism (5) is arranged on the hull (1); The lifting assembly (4) is used to drive the water-blocking sleeve (3) to lift and lower, so that one end of the water-blocking sleeve (3) is vertically inserted into the riverbed mud or the water-blocking sleeve (3) is lifted off the water surface; The translation mechanism (5) is used to drive the water-blocking sleeve (3) to translate laterally, so as to change the position of the water-blocking sleeve (3) inserted into the riverbed mud, and is used to clean the mud on both sides of the bow; The drainage assembly (6) is used to evacuate the river water inside the water-blocking sleeve (3), and the excavator (2) excavates the riverbed silt from the inside of the water-blocking sleeve (3); The translation mechanism (5) includes a linear slide (51) and a mobile platform (52), wherein the linear slide (51) is fixed to the side of the hull (1), and the output end of the linear slide (51) is fixedly connected to the mobile platform (52); a through hole (501) is vertically provided on the mobile platform (52), and the watertight sleeve (3) vertically penetrates the through hole (501); one end of the lifting assembly (4) is fixed to the outer wall of the watertight sleeve (3), and the other end is fixed to the mobile platform (52); The drainage assembly (6) includes an electric reel (61), a water suction pipe (62), a water pump (63) and a drainage pipe (64), wherein the electric reel (61) is fixed on the mobile platform (52); the water suction pipe (62) is wound on the electric reel (61), one end of the water suction pipe (62) is placed in the water-isolating sleeve (3), and the other end is connected to the water suction port of the water pump (63); the water pump (63) is fixed on the electric reel (61) and fixed relative to the mobile platform (52), and the water outlet of the water pump (63) is connected to the drainage pipe (64); The water-blocking sleeve (3) includes a first sleeve (31), a second sleeve (32) and a first fixing plate (33), wherein the lower end of the first sleeve (31) is provided with a sawtooth (302), and the upper end is plugged into the lower end of the second sleeve (32); one end of the first fixing plate (33) is connected to the side of the upper end of the first sleeve (31) by bolt fixing, and the other end is connected to the side of the lower end of the second sleeve (32) by bolt fixing, an annular protrusion is provided on the upper end surface of the first sleeve (31), and an annular groove is provided on the lower end surface of the second sleeve (32), when the annular protrusion is inserted into the annular groove, the upper end of the first sleeve (31) and the lower end of the second sleeve (32) are plugged into, wherein the annular protrusion is a rubber protrusion.

2. A canal dredging device according to claim 1, characterized in that: The translation mechanism (5) further includes a walking platform (53), wherein: The walking platform (53) is arranged on the side of the water-blocking sleeve (3) and is fixed on the moving platform (52).

3. A canal dredging device according to claim 1, characterized in that: The linear slide (51) includes a guide rail (511), a slider (512), a connecting plate (513), a lead screw (514), a lead screw pair (515) and a translation motor (516), wherein: Two guide rails (511) are provided, and a slider (512) is slidably provided on each guide rail (511), and the slider (512) is fixedly connected to the hull (1); One end of the connecting plate (513) is fixedly connected to one of the guide rails (511), and the other end is fixedly connected to the other guide rail (511); a side of the connecting plate (513) away from the guide rail (511) is fixedly connected to the mobile platform (52); The lead screw (514) is arranged between the two guide rails (511), and the lead screw (514) and the two guide rails (511) are parallel to each other, and the lead screw (514) is rotatably arranged on the hull (1); The lead screw pair (515) is screwed onto the lead screw (514), and the lead screw pair (515) is fixedly connected to the connecting plate (513); The translation motor (516) is fixed on the hull (1), and the output end of the translation motor (516) is transmission-connected to one end of the lead screw (514).

4. A canal dredging device according to claim 1, characterized in that: The lifting assembly (4) comprises a first rack (41) and a first lifting motor (42), wherein: The first rack (41) is fixed to the side of the water-blocking sleeve (3); The first lifting motor (42) is fixedly arranged on the mobile platform (52), and the output end of the first lifting motor (42) is engaged with the first rack (41).

5. A canal dredging device according to claim 4, characterized in that: The lifting assembly (4) further includes a guide roller (43), wherein: A guide groove (301) is provided vertically through the side of the water-blocking sleeve (3), four guide grooves (301) are provided along the circumferential matrix of the water-blocking sleeve (3), and one guide roller (43) is provided at each guide groove (301); One end of the guide roller (43) is rollingly arranged on the bottom of the corresponding guide groove (301), and the other end is fixedly connected to the hole wall of the through hole (501).

6. A canal dredging device according to claim 1, characterized in that: The drainage assembly (6) further includes a counterweight (65), wherein: The counterweight (65) is fixed to one end of the water suction pipe (62) placed in the water-blocking sleeve (3).

7. A canal dredging device according to claim 2, characterized in that: The first fixing plate (33) is arranged below the walking platform (53).

8. A canal dredging device according to claim 7, characterized in that: The water-blocking sleeve (3) further comprises a second fixing plate (34), wherein: A plurality of the second sleeves (32) are arranged vertically, and two upper and lower adjacent second sleeves (32) are plugged into each other and fixedly connected via the second fixing plate (34); The second fixing plate (34) is arranged below the walking platform (53), and the second fixing plate (34) is connected to the second sleeve (32) by means of bolt fixing.

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