Reservoir desilting device for water conservancy and hydropower engineering

Abstract

The invention relates to a reservoir desilting device for water conservancy and hydropower engineering, and relates to the technical field of desilting equipment, the reservoir desilting device comprises a connecting main frame and a grab bucket assembly, the bottom of the connecting main frame is connected with a driving machine body, the bottom of the driving machine body is provided with a walking mechanism, and the top of the driving machine body is connected with a control cabin; a lifting mechanism is connected between the driving machine body and the top of the connecting main frame; the water draining device can freely move and adjust the direction, sludge at the bottom of a reservoir can be pushed and shoveled to be concentrated to one position to be treated in the moving process, the height and the translation position of the grab bucket assembly can be freely adjusted, after sludge grabbing is completed, the water draining action can be rapidly completed, and the working efficiency is improved. Through double water filtering actions of rotary centrifugal water throwing and extrusion drainage, the drainage rate is higher, the drainage time is shortened, the drainage amount is larger, and the dehydration rate is higher.

Description

Technical Field

[0001] This application relates to the field of dredging equipment technology, and in particular to a reservoir dredging device for water conservancy and hydropower projects. Background Technology

[0002] With the acceleration of urbanization, the demand for water resources is increasing day by day. As one of the important water sources, reservoirs play an important role in ensuring water supply security. However, due to the influence of natural factors and human activities, a large amount of silt and garbage often accumulates at the bottom of the reservoir, which seriously affects the function and service life of the reservoir.

[0003] Traditional dredging methods mainly include manual excavation and dredging vessels. While these methods can solve the problem to some extent, they have significant limitations in terms of efficiency and environmental friendliness. In recent years, with the development of automation technology and machinery, more and more modern dredging equipment has been applied to practical engineering projects, significantly improving the efficiency and safety of dredging work.

[0004] A search revealed an existing patent (publication number: CN109469145B) that discloses a dredging device and method for reservoirs. The device includes a silt tank on the hull deck, an operating device at the end of the hull with an opening, an operating room, and a first slide rail on the hull deck. The operating device is slidably connected to the first slide rail. The operating device includes a rotating platform, a connecting member, and a dredging structure. The rotating platform is rotatably connected to the connecting member, and the dredging structure is located at the bottom of the connecting member. A second slide rail is located on the bottom of the hull, and a base is slidably connected within the second slide rail. The base has a pushing structure that concentrates the silt from the bottom of the water into one area for centralized dredging. The operation is simple and fast, accelerating the dredging time, saving resources, and achieving high dredging efficiency. During the development of this application, the inventors discovered the following problems with the existing technology: Existing reservoir dredging equipment can only grab and concentrate the silt in one place, but cannot drain the water in the silt. Since there is a lot of water in the silt in the reservoir, if the water in the silt cannot be drained, it will increase the difficulty of silt treatment. It will need to be transferred to sludge drainage treatment equipment for further treatment. Moreover, since the silt with water is fluid, it will be difficult to pile up the silt, and the silt will occupy a large area when stored. Therefore, a reservoir dredging device for water conservancy and hydropower projects is proposed to address the aforementioned technical problems. Summary of the Invention

[0005] To address the aforementioned problems, this application provides a reservoir dredging device for water conservancy and hydropower projects.

[0006] This application provides a reservoir dredging device for water conservancy and hydropower projects, which adopts the following technical solution: A reservoir dredging device for water conservancy and hydropower projects includes a connecting main frame and a grab bucket assembly. The bottom of the connecting main frame is connected to a drive body, and the bottom of the drive body is provided with a walking mechanism. The top of the drive body is connected to a control cabin, and a lifting mechanism is connected between the drive body and the top of the connecting main frame. The lifting mechanism includes a fixed crossbeam welded inside, and a lifting drive plate and a lifting drive plate slidably connected inside the lifting mechanism. A lifting cylinder is connected to the bottom of the lifting drive plate, and a telescopic slide plate is slidably connected inside the lifting drive plate via a slide rail. A telescopic motor is connected to the end of the lifting drive plate away from the telescopic slide plate. The grab bucket assembly is connected to the bottom of the telescopic slide plate, and the grab bucket assembly includes two sets of filter screen buckets.

[0007] Preferably, a rotating adjustment platform is provided between the walking mechanism and the drive body, and tracked moving wheel sets are provided on both sides of the walking mechanism. A pusher connecting plate is provided on one side of the walking mechanism, and two sets of lifting slides are provided on the pusher connecting plate.

[0008] By adopting the above technical solution, the walking mechanism and the rotation adjustment of the rotating adjustment table enable the dredging to be moved and cleaned more effectively on large reservoirs.

[0009] Preferably, the walking mechanism is connected to a sludge shovel plate on the side near the pusher connecting plate, and a lifting adjustment plate that fits into the lifting slide is provided on one side of the sludge shovel plate. The walking mechanism is provided with two sets of lifting cylinders, one end of which is connected to the lifting adjustment plate.

[0010] By adopting the above technical solution, silt can be concentrated in one place for treatment, which facilitates subsequent grabbing and processing. Silt accumulated at the bottom of the reservoir can be removed by pushing and shoveling, and the height of the silt shovel can be adjusted to push and shovel sludge at different heights.

[0011] Preferably, two sets of symmetrical fixed plug-in cylinders are connected to the fixed crossbeam, and two sets of lifting pulleys are welded to the bottom of the lifting drive plate. A lifting chain is provided inside the lifting pulley, and the two ends of the lifting chain are respectively welded to the lifting drive plate and the fixed plug-in cylinder.

[0012] By adopting the above technical solution, the lifting cylinder drives the lifting drive plate and the grab bucket assembly connected to it to move up and down by the pulley block, thereby adjusting the grab height of the grab bucket assembly, which facilitates the adjustment of the grab action on sludge piles of different heights.

[0013] Preferably, the top side of the filter sieve is connected to two sets of opening and closing plate connecting blocks, and the top of the filter sieve is provided with a connecting top plate. A connecting hole is provided between the two sets of connecting top plates. Two sets of active rotating cylinders are respectively provided on both sides of the connecting hole, and the top of the active rotating cylinder is connected to an opening and closing cylinder.

[0014] By adopting the above technical solution, the closed space formed by the filter screen bucket prevents the sludge from leaking out when grabbing sludge, and facilitates the sludge to be thrown out of the grab bucket assembly during subsequent water discharge.

[0015] Preferably, the top of the connecting top plate is provided with four sets of rotating shaft opening and closing plates, and the two ends of the active rotating cylinder are slidably connected to the two adjacent sets of rotating shaft opening and closing plates through rotating shafts. The top of the telescopic slide plate is provided with a drive motor, and the bottom of the telescopic slide plate is provided with a grab bucket connecting plate, and the bottom of the grab bucket connecting plate is provided with two sets of opening and closing connecting shafts.

[0016] By adopting the above technical solution, the dehydration and drainage action is carried out through a separate connecting plate and motor drive, so that the subsequent dehydration and drainage process can be better performed.

[0017] Preferably, two sets of driven grab plates are connected between the grab bucket connecting plate and the connecting top plate, and the two ends of the driven grab plates are respectively connected to the opening and closing plate connecting block and the opening and closing connecting shaft through rotating shafts. Multiple sets of filter screen holes are provided on the outer side of the filter screen bucket.

[0018] By adopting the above technical solution, the opening and closing action of the filter screen bucket is made more stable through the linkage of the opening and closing slide plate assembly, and the filter screen bucket realizes the water-draining action during the gripping process through the screen holes on its outer side.

[0019] Preferably, a rotating shaft is connected to the output shaft of the drive motor, and a rotating drive frame is connected between the rotating shaft and the grab bucket connecting plate. A drive screw is provided at the bottom of the rotating shaft, and a lifting nut sleeve is sleeved at the bottom of the drive screw.

[0020] By adopting the above technical solution, centrifugal screening is performed by rotation, which allows water in the sludge to be separated from the sludge more effectively.

[0021] Preferably, the grab bucket assembly is provided with a drainage squeezing block, and the two sides of the drainage squeezing block are connected to opening and closing squeezing plates through rotating shafts. The end of the opening and closing squeezing plate away from the drainage squeezing block is connected to a movable pulley, and the bottom end of the lifting nut sleeve is connected to the top center of the drainage squeezing block by bolts.

[0022] By adopting the above technical solution, the drainage rate is increased, the drainage time is reduced, and the drainage volume is larger and the dehydration rate is higher through the dual drainage action of rotating and squeezing water.

[0023] 1. Compared with the prior art, this reservoir dredging device for water conservancy and hydropower projects can move freely and adjust its direction. During the movement, it can push and collect the silt at the bottom of the reservoir to one place for treatment. The entire dredging device is controlled by the control chamber. The drive body moves through the tracked moving wheel set, and the drive body can rotate on the walking mechanism through the rotating adjustment platform to adjust the direction and position of grabbing sludge. The height of sludge removal can be adjusted as needed. The lifting cylinder drives the lifting adjustment plate to slide up and down in the lifting groove of the pusher connecting plate, and the lifting adjustment plate drives the sludge shovel to move up and down. During the movement, the dredging device pushes the silt in the reservoir through the sludge shovel.

[0024] 2. Compared with the prior art, this reservoir dredging device for water conservancy and hydropower projects can freely adjust the height and translational position of the grab bucket assembly. After grabbing the silt, it can quickly complete the drainage action. The lifting cylinder drives the lifting drive plate and the lifting drive plate to move up and down. The lifting cylinder pushes the lifting drive plate to move up and down. During the lifting process, the lifting drive plate moves up and down through the lifting chain and the lifting pulley. The telescopic motor can drive the telescopic slide plate to slide and extend within the lifting drive plate. During the extension and retraction, the telescopic slide plate drives the grab bucket assembly to move translationally. The opening and closing cylinder can push the filter screen bucket to move. During the movement, the filter screen bucket slides between the opening and closing plate connecting block and the opening and closing connecting shaft through the driven grab bucket plate. The opening and closing action of the filter screen bucket is completed by the rotation and sliding of the eight sets of rotating shaft opening and closing plates on the active rotating cylinder. The filter screen bucket drains water through the screen holes on its outer side.

[0025] 3. Compared with existing technologies, this reservoir dredging device for water conservancy and hydropower projects achieves a higher drainage rate, reduced drainage time, and greater drainage volume and dewatering rate through a dual filtration action of rotational centrifugal water throwing and squeezing drainage. A drive motor drives a rotating shaft and its connected rotating drive frame to rotate the grab bucket connecting plate. During this rotation, the grab bucket connecting plate drives the grab bucket assembly to rotate, and the grab bucket assembly uses centrifugal force to throw out water from the sludge in the filter bucket. Simultaneously, the rotating shaft drives a drive screw to rotate, and the drive screw... During the process, the lifting nut sleeve moves along the direction of the drive screw rotation. As the lifting nut sleeve moves, it also moves the drainage squeezing block. As the drainage squeezing block descends, it squeezes the sludge in the grab bucket assembly and completes further dewatering through squeezing. During the drainage and squeezing process, the opening and closing squeezing plates on both sides of the drainage squeezing block can prevent the sludge from being squeezed out from both sides. As the opening and closing squeezing plates descend, they slide on the inner wall of the filter bucket through the moving pulley. During the sliding process, the opening and closing squeezing plates, the drainage squeezing block, and the bottom of the two sets of filter buckets always form a relatively closed space. Attached Figure Description

[0026] Figure 1 This is a structural diagram of the main body of this application; Figure 2 This is a structural diagram of the main connecting frame of this application; Figure 3 This is a structural schematic diagram of the side of the sludge shovel plate in this application; Figure 4 This is a structural schematic diagram of the lifting drive plate in this application; Figure 5 This is a structural schematic diagram of the front view of the grab bucket assembly in this application; Figure 6 This is a structural schematic diagram of the grab bucket assembly in this application; Figure 7 This is a top-view structural schematic diagram of the grab bucket connecting plate in this application; Figure 8 This is a schematic diagram of the structure of the drainage squeezing block in this application.

[0027] The attached figures are labeled as follows: 1. Connecting main frame; 11. Drive body; 12. Control compartment; 2. Lifting mechanism; 21. Lifting drive plate; 211. Lifting pulley; 22. Fixed crossbeam; 221. Fixed insertion cylinder; 222. Lifting chain; 3. Lifting cylinder; 4. Lifting drive plate; 41. Telescopic sliding plate; 42. Telescopic motor; 43. Grab bucket connecting plate; 431. Opening and closing connecting shaft; 44. Drive motor; 441. Rotating shaft; 442. Drive screw; 443. Rotating drive frame; 444. Lifting nut sleeve. ; 445. Drainage squeezing block; 446. Opening and closing squeezing plate; 447. Moving pulley; 5. Walking mechanism; 51. Rotary adjustment table; 52. Tracked moving wheel set; 53. Push shovel connecting plate; 531. Lifting chute; 54. Lifting cylinder; 6. Silt shovel plate; 61. Lifting adjustment plate; 7. Grab bucket assembly; 71. Filter screen bucket; 711. Connecting top plate; 712. Opening and closing plate connecting block; 713. Driven grab bucket plate; 714. Connecting hole; 72. Active rotating drum; 721. Rotary shaft opening and closing plate; 73. Opening and closing cylinder. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0029] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail below.

[0030] A reservoir dredging device for water conservancy and hydropower projects, referring to Figure 1 and Figure 2 It includes a main frame 1 and a grab bucket assembly 7. The bottom of the main frame 1 is connected to a drive body 11, and the bottom of the drive body 11 is provided with a walking mechanism 5. The top of the drive body 11 is connected to a control cabin 12, and a lifting mechanism 2 is connected between the drive body 11 and the top of the main frame 1. The lifting mechanism 2 has a fixed crossbeam 22 welded inside, and a lifting drive plate 21 and a lifting drive plate 4 are slidably connected inside the lifting mechanism 2. A lifting cylinder 3 is connected to the bottom of the lifting drive plate 21. A telescopic slide plate 41 is slidably connected inside the lifting drive plate 4 via a slide rail, and a telescopic motor 42 is connected to the end of the lifting drive plate 4 away from the telescopic slide plate 41. A grab bucket assembly 7 is connected to the bottom of the telescopic slide plate 41, and the grab bucket assembly 7 includes two sets of filter screen buckets 71. The connecting main frame 1 is rectangular and is made of high-strength steel. The drive body 11 is the main drive structure of the dredging device, and the control chamber 12 is the control mechanism of the entire dredging device. It can be operated manually or remotely. The main body 11 and the control compartment 12 can be regarded as a whole. Its specific operation mode can be referred to as that of excavators or loaders. The grab bucket assembly 7 grabs the silt, and the lifting cylinder 3 drives the lifting drive plate 21 and the lifting drive plate 4 to move up and down. The lifting drive plate 4 drives the telescopic slide plate 41 and the grab bucket assembly 7 connected to it to move up and down. The telescopic motor 42 drives the telescopic slide plate 41 to slide and extend within the lifting drive plate 4. During the extension and retraction process, the telescopic slide plate 41 drives the grab bucket assembly 7 to move horizontally. The telescopic motor 42 can be an electric telescopic motor or a screw motor. The telescopic motor 42 pushes or drives the telescopic slide plate 41 to move in extension and retraction. This sliding movement method is a mature existing technology.

[0031] Reference Figure 1 A rotating adjustment platform 51 is provided between the walking mechanism 5 and the drive body 11, and tracked mobile wheel sets 52 are provided on both sides of the walking mechanism 5. A pusher connecting plate 53 is provided on one side of the walking mechanism 5, and two sets of lifting slides 531 are provided on the pusher connecting plate 53. The walking mechanism 5 moves by tracked mobile wheel sets 52, and the drive body 11 moves by tracked mobile wheel sets 52. The specific control and movement principle are all conventional facilities of the vehicle body. The drive body 11 can rotate on the walking mechanism 5 by rotating the rotating adjustment platform 51, thereby adjusting the direction and position of grabbing sludge, and its rotation method is also a common facility of existing engineering vehicle bodies.

[0032] Reference Figure 1 and Figure 3 The walking mechanism 5 is connected to a sludge shovel 6 on the side near the pusher connecting plate 53. A lifting adjustment plate 61 that fits into the lifting slide 531 is provided on one side of the sludge shovel 6. The walking mechanism 5 is equipped with two sets of lifting cylinders 54. One end of the lifting cylinder 54 is connected to the lifting adjustment plate 61. The lifting adjustment plate 61 can be driven to slide up and down in the lifting slide 531 of the pusher connecting plate 53 by the lifting cylinder 54. The lifting adjustment plate 61 can also drive the sludge shovel 6 to move up and down. During the movement, the sludge removal device pushes the sludge in the reservoir through the sludge shovel 6.

[0033] Reference Figure 1 and Figure 2 Two sets of symmetrical fixed plug-in cylinders 221 are connected to the fixed crossbeam 22, and two sets of lifting pulleys 211 are welded to the bottom of the lifting drive plate 21. Lifting chains 222 are installed inside the lifting pulleys 211, and the two ends of the lifting chains 222 are welded to the lifting drive plate 4 and the fixed plug-in cylinders 221 respectively. The lifting cylinder 3 pushes the lifting drive plate 21 to move up and down, and the lifting drive plate 21 drives the lifting drive plate 4 to move up and down through the lifting chains 222 and the lifting pulleys 211 during the lifting process. The lifting chains 222, the lifting pulleys 211, the fixed plug-in cylinders 221 of the fixed crossbeam 22, and the lifting drive plate 4 constitute a pulley group structure.

[0034] Reference Figure 4 and Figure 5 Two sets of opening and closing plate connecting blocks 712 are connected to the top side of the filter screen bucket 71, and a connecting top plate 711 is provided on the top of the filter screen bucket 71. A connecting hole 714 is provided between the two sets of connecting top plates 711. Two sets of active rotating cylinders 72 are provided on both sides of the connecting hole 714, and an opening and closing cylinder 73 is connected to the top of the active rotating cylinder 72. After the two sets of filter screen buckets 71 are closed, they form a relatively sealed structure with the connecting top plate 711 on their top. The opening and closing cylinder 73 drives the two sets of filter screen buckets 71 to complete the opening and closing action, and the filter screen buckets 71 complete the grabbing and releasing action of sludge during the opening and closing process.

[0035] Reference Figure 5 and Figure 6 The top of the connecting plate 711 is provided with four sets of rotating shaft opening and closing plates 721, and the two ends of the active rotating cylinder 72 are slidably connected to the two adjacent sets of rotating shaft opening and closing plates 721 through rotating shafts. The top of the telescopic slide plate 41 is provided with a drive motor 44, and the bottom of the telescopic slide plate 41 is provided with a grab bucket connecting plate 43. The bottom of the grab bucket connecting plate 43 is provided with two sets of opening and closing connecting shafts 431. The telescopic slide plate 41 drives the grab bucket connecting plate 43 to move, and the grab bucket connecting plate 43 drives the grab bucket assembly 7 to move during the movement, and can be driven by the drive motor 44 to perform drainage work.

[0036] Reference Figure 6 and Figure 7Two sets of driven grab plates 713 are connected between the grab bucket connecting plate 43 and the connecting top plate 711. The two ends of the driven grab plates 713 are respectively connected to the opening and closing plate connecting block 712 and the opening and closing connecting shaft 431 through rotating shafts. Multiple sets of filter screen holes are provided on the outer side of the filter screen bucket 71. The filter screen bucket 71 is moved by the opening and closing cylinder 73. During the movement, the filter screen bucket 71 slides between the opening and closing plate connecting block 712 and the opening and closing connecting shaft 431 through the driven grab plates 713. It rotates and slides on the active rotating drum 72 through the eight sets of rotating shaft opening and closing plates 721, thereby completing the opening and closing action of the filter screen bucket 71. The filter screen bucket 71 drains water through the screen holes on its outer side.

[0037] Reference Figure 5 and Figure 8 A rotating shaft 441 is connected to the output shaft of the drive motor 44, and a rotating drive frame 443 is connected between the rotating shaft 441 and the grab bucket connecting plate 43. A drive screw 442 is provided at the bottom of the rotating shaft 441, and a lifting nut sleeve 444 is sleeved at the bottom of the drive screw 442. The drive motor 44 can drive the grab bucket connecting plate 43 to rotate through the rotating shaft 441 and the rotating drive frame 443 connected to it. During the rotation of the grab bucket connecting plate 43, the grab bucket assembly 7 is driven to rotate. During the rotation of the grab bucket assembly 7, the water in the sludge in the filter screen bucket 71 is thrown out by centrifugal force. During the rotation of the rotating shaft 441, the drive screw 442 is driven to rotate. During the rotation of the drive screw 442, the lifting nut sleeve 444 is moved in the direction of rotation of the drive screw 442.

[0038] Reference Figure 8 The grab bucket assembly 7 is equipped with a drainage squeezing block 445. The two sides of the drainage squeezing block 445 are connected to the opening and closing squeezing plates 446 via rotating shafts. The end of the opening and closing squeezing plate 446 away from the drainage squeezing block 445 is connected to a movable pulley 447. The bottom end of the lifting nut sleeve 444 is bolted to the top center of the drainage squeezing block 445. During the movement of the lifting nut sleeve 444, the drainage squeezing block 445 is moved. During the descent of the drainage squeezing block 445, it squeezes the sludge in the grab bucket assembly 7 and completes the further dewatering action through squeezing. During the drainage and squeezing process, the opening and closing squeezing plates 446 on both sides of the drainage squeezing block 445 can prevent the sludge from being squeezed out from both sides. During the descent of the opening and closing squeezing plate 446, it slides on the inner wall of the filter screen bucket 71 via the movable pulley 447. During the sliding process, the opening and closing squeezing plate 446, the drainage squeezing block 445, and the bottom of the two sets of filter screen buckets 71 always form a relatively closed space.

[0039] The working process of this application is as follows: First, the entire dredging device is controlled by the control chamber 12. The drive body 11 moves by the tracked mobile wheel set 52, and the drive body 11 can rotate on the walking mechanism 5 by the rotary adjustment table 51, thereby adjusting the direction and position of grabbing sludge, and the height of sludge can be removed as needed. The lifting cylinder 54 drives the lifting adjustment plate 61 to slide up and down in the lifting slide groove 531 of the push shovel connecting plate 53, and the lifting adjustment plate 61 drives the sludge shovel 6 to move up and down. During the movement of the dredging device, the sludge in the reservoir is pushed by the sludge shovel 6. When the dredging device moves and is adjusted to a suitable dredging position, the grab bucket assembly 7 grabs the sludge. The lifting cylinder 3 drives the lifting drive plate 21 and the lifting drive plate 4 to move up and down. The lifting cylinder 3 pushes the lifting drive plate 21 to move up and down. During the lifting process, the lifting drive plate 21 drives the lifting drive plate 4 to move up and down via the lifting chain 222 and the lifting pulley 211. The telescopic motor 42 drives the telescopic slide plate 41 to slide and extend within the lifting drive plate 4. During the extension and retraction, the telescopic slide plate 41 drives the grab bucket assembly 7 to move horizontally. Furthermore, the filter sieve 71 can be moved by the opening and closing cylinder 73, and during the movement, the filter sieve 71 slides between the opening and closing plate connecting block 712 and the opening and closing connecting shaft 431 through the driven grab plate 713, and rotates and slides on the active rotating drum 72 through the eight sets of rotating shaft opening and closing plates 721, thereby completing the opening and closing action of the filter sieve 71, and can be completed after the grabbing is finished; The drive motor 44 drives the grab bucket connecting plate 43 to rotate via the rotating shaft 441 and the connected rotating drive frame 443. During this rotation, the grab bucket connecting plate 43 drives the grab bucket assembly 7 to rotate. The grab bucket assembly 7, during its rotation, uses centrifugal force to throw out water from the sludge in the filter screen bucket 71. Simultaneously, the rotating shaft 441 drives the drive screw 442 to rotate, which in turn moves the lifting nut sleeve 444 along the direction of rotation. During this movement... The drainage squeezing block 445 is moved, and during the descent, the drainage squeezing block 445 squeezes the sludge in the grab bucket assembly 7, and completes the further dewatering action through squeezing. During the drainage and squeezing process, the opening and closing squeezing plates 446 on both sides of the drainage squeezing block 445 can prevent the sludge from being squeezed out from both sides. During the descent, the opening and closing squeezing plates 446 slide on the inner wall of the filter screen bucket 71 through the moving pulley 447. During the sliding process, the opening and closing squeezing plates 446, the drainage squeezing block 445, and the bottom of the two sets of filter screen buckets 71 always form a relatively closed space.

[0040] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A reservoir dredging device for water conservancy and hydropower projects, comprising a main frame (1) and a grab bucket assembly (7), characterized in that: The bottom of the connecting main frame (1) is connected to a drive body (11), and the bottom of the drive body (11) is provided with a walking mechanism (5). The top of the drive body (11) is connected to a control cabin (12), and a lifting mechanism (2) is connected between the drive body (11) and the top of the connecting main frame (1). The lifting mechanism (2) is welded with a fixed crossbeam (22), and the lifting mechanism (2) is slidably connected with a lifting drive plate (21) and a lifting drive plate (4). The bottom of the lifting drive plate (21) is connected with a lifting cylinder (3). The lifting drive plate (4) is slidably connected with a telescopic slide plate (41) via a slide rail. The end of the lifting drive plate (4) away from the telescopic slide plate (41) is connected with a telescopic motor (42). The grab bucket assembly (7) is connected to the bottom of the telescopic slide plate (41). The grab bucket assembly (7) includes two sets of filter screen buckets (71).

2. The reservoir dredging device for water conservancy and hydropower projects according to claim 1, characterized in that: A rotating adjustment platform (51) is provided between the walking mechanism (5) and the drive body (11), and tracked moving wheel sets (52) are provided on both sides of the walking mechanism (5). A pusher connecting plate (53) is provided on one side of the walking mechanism (5), and two sets of lifting slides (531) are provided on the pusher connecting plate (53).

3. A reservoir dredging device for water conservancy and hydropower projects according to claim 2, characterized in that: The walking mechanism (5) is connected to a sludge shovel plate (6) on the side near the pusher connecting plate (53), and a lifting adjustment plate (61) that fits into the lifting slide (531) is provided on one side of the sludge shovel plate (6). The walking mechanism (5) is provided with two sets of lifting cylinders (54), and one end of the lifting cylinder (54) is connected to the lifting adjustment plate (61).

4. A reservoir dredging device for water conservancy and hydropower projects according to claim 1, characterized in that: Two sets of symmetrical fixed plug tubes (221) are connected to the fixed crossbeam (22), and two sets of lifting pulleys (211) are welded to the bottom of the lifting drive plate (21). A lifting chain (222) is provided inside the lifting pulley (211), and the two ends of the lifting chain (222) are respectively welded to the lifting drive plate (4) and the fixed plug tube (221).

5. A reservoir dredging device for water conservancy and hydropower projects according to claim 1, characterized in that: Two sets of opening and closing plate connecting blocks (712) are connected to one side of the top of the filter sieve bucket (71), and a connecting top plate (711) is provided on the top of the filter sieve bucket (71). A connecting hole (714) is provided between the two sets of connecting top plates (711). Two sets of active rotating cylinders (72) are provided on both sides of the connecting hole (714), and an opening and closing cylinder (73) is connected to the top of the active rotating cylinder (72).

6. A reservoir dredging device for water conservancy and hydropower projects according to claim 5, characterized in that: The top of the connecting top plate (711) is provided with four sets of rotating shaft opening and closing plates (721), and the two ends of the active rotating cylinder (72) are slidably connected to the two adjacent sets of rotating shaft opening and closing plates (721) through rotating shafts. The top of the telescopic slide plate (41) is provided with a drive motor (44), and the bottom of the telescopic slide plate (41) is provided with a grab bucket connecting plate (43), and the bottom of the grab bucket connecting plate (43) is provided with two sets of opening and closing connecting shafts (431).

7. A reservoir dredging device for water conservancy and hydropower projects according to claim 6, characterized in that: Two sets of driven grab plates (713) are connected between the grab connecting plate (43) and the connecting top plate (711), and the two ends of the driven grab plates (713) are respectively connected to the opening and closing plate connecting block (712) and the opening and closing connecting shaft (431) through rotating shafts. Multiple sets of filter screen holes are provided on the outer side of the filter screen bucket (71).

8. A reservoir dredging device for water conservancy and hydropower projects according to claim 7, characterized in that: A rotating shaft (441) is connected to the output shaft of the drive motor (44), and a rotating drive frame (443) is connected between the rotating shaft (441) and the grab bucket connecting plate (43). A drive screw (442) is provided at the bottom of the rotating shaft (441), and a lifting nut sleeve (444) is sleeved at the bottom of the drive screw (442).

9. A reservoir dredging device for water conservancy and hydropower projects according to claim 8, characterized in that: The grab assembly (7) is provided with a drainage squeezing block (445). The two sides of the drainage squeezing block (445) are connected to the opening and closing squeezing plate (446) through the rotating shaft. The end of the opening and closing squeezing plate (446) away from the drainage squeezing block (445) is connected to the movable pulley (447). The bottom end of the lifting nut sleeve (444) is connected to the top center of the drainage squeezing block (445) by bolts.

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