CN114875989B - Anti-clogging dredging structure and dredging method based on dam engineering - Google Patents
Anti-clogging dredging structure and dredging method based on dam engineering Download PDFInfo
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- CN114875989B CN114875989B CN202210471771.3A CN202210471771A CN114875989B CN 114875989 B CN114875989 B CN 114875989B CN 202210471771 A CN202210471771 A CN 202210471771A CN 114875989 B CN114875989 B CN 114875989B
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- 238000000034 method Methods 0.000 title claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 84
- 238000003860 storage Methods 0.000 claims abstract description 52
- 239000010802 sludge Substances 0.000 claims abstract description 41
- 230000007704 transition Effects 0.000 claims abstract description 22
- 238000004140 cleaning Methods 0.000 claims description 24
- 238000005096 rolling process Methods 0.000 claims description 22
- 238000010276 construction Methods 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000012851 eutrophication Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/8808—Stationary installations, e.g. installations using spuds or other stationary supports
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
- E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
- E02F3/92—Digging elements, e.g. suction heads
- E02F3/9212—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel
- E02F3/9225—Mechanical digging means, e.g. suction wheels, i.e. wheel with a suction inlet attached behind the wheel with rotating cutting elements
- E02F3/9237—Suction wheels with axis of rotation in transverse direction of the longitudinal axis of the suction pipe
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/28—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways
- E02F5/282—Dredgers or soil-shifting machines for special purposes for cleaning watercourses or other ways with rotating cutting or digging tools
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F7/00—Equipment for conveying or separating excavated material
- E02F7/04—Loading devices mounted on a dredger or an excavator hopper dredgers, also equipment for unloading the hopper
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a dredging structure and a dredging method for preventing siltation based on dam engineering. The dredging structure comprises a transport truck, an extension device arranged on the transport truck, a platform device arranged on the extension device, a dredging device arranged on the platform device and a temporary storage device arranged on the platform device. The stretching device comprises a supporting frame, a first angle adjusting component arranged on the supporting frame, a plurality of transmission components arranged on the first angle adjusting component, a third angle adjusting component arranged on the supporting column and a bearing component arranged on the third angle adjusting component. The temporary storage device comprises a transition assembly for transporting sludge, and a driving assembly which is arranged on the platform and used for moving the transition assembly to the transmission assembly. The invention overcomes the defects of the prior art, and provides a special dredging structure for preventing sludge in dam engineering.
Description
Technical Field
The invention relates to the technical field of port sewage treatment, in particular to a dredging structure and a dredging method for preventing siltation based on dam engineering.
Background
In recent years, china is more and more paying attention to hydraulic engineering construction, the investment is also continuously increased, and the engineering construction range is increased year by year. The hydraulic engineering is one of important infrastructures in China, plays a very important role in the production and life of people, is not only closely related to national construction and social stability, but also is concerned with the life and property safety of people.
In hydraulic engineering, the dykes and dams are key components, and the dykes and dams are taken as facilities for flood protection and disaster prevention, and play an important role in agricultural irrigation, flood control and drought resistance. The sludge cleaning of the dykes is extremely important, and if the sludge cleaning of the dykes is not thorough, the dykes are easy to collapse after falling off the slope; the accumulated sludge not only affects flood discharge and farmland irrigation, but also seriously affects the quality of water environment and aggravates the eutrophication degree of water body. The existing dykes and dams silt clearance mainly relies on desilting dredger, but desilting dredger expense is high, and can not get into shallow water construction, and the screw under the ship is easily twined by aquatic weeds, and silt clearance efficiency is low.
Disclosure of Invention
The invention discloses a dredging structure for preventing silting based on dam engineering, which comprises a transport truck, an extension device arranged on the transport truck, a platform device arranged on the extension device and positioned at one end of the extension device far away from the transport truck, a dredging device arranged on the platform device, and a temporary storage device arranged on the platform device, and is characterized in that:
the stretching device comprises a support frame arranged on a transport truck, a first angle adjusting component arranged on the support frame, a plurality of transmission components which are arranged on the first angle adjusting component and are used for conveying temporary storage devices and distributed along the X direction, two adjacent transmission components are connected through a plurality of support columns, a third angle adjusting component arranged on the support columns, and a bearing component arranged on the third angle adjusting component and used for bearing;
the platform device comprises a second angle adjusting component arranged on the transmission component farthest from the transport truck, and a platform arranged on the second angle adjusting component;
the temporary storage device comprises a transition assembly for transporting sludge, and a driving assembly which is arranged on the platform and used for moving the transition assembly to the transmission assembly.
The invention discloses a preferable dredging structure for preventing silting based on dam engineering, which is characterized in that the first angle adjusting component, the second angle adjusting component and the third angle adjusting component have the same structure;
the first angle adjusting component comprises a main shaft with two ends rotatably installed on the support frame through rolling bearings, a first worm wheel installed on the main shaft, a first worm installed on the support frame and meshed with the first worm wheel through rolling bearings, and a first adjusting motor installed on the support frame and connected with the first worm wheel through an output shaft.
The invention discloses a preferable dredging structure based on dam engineering, which is characterized in that the transmission assembly comprises a pair of bottom posts A which are arranged on a main shaft and distributed along a Y direction, a first rotating shaft of which the two ends are respectively arranged on the bottom posts A in a rotating way through rolling bearings, a translation block A which is movably arranged on the bottom posts A and positioned above the main shaft, a pair of folding pieces which are respectively positioned on the front side and the rear side of the first transmission roller along the Y direction, a pair of bottom posts B which are distributed along the Y direction and positioned at one end of the folding pieces far away from the bottom posts A, a second rotating shaft of which the two ends are respectively arranged on the bottom posts B in a rotating way through rolling bearings, a translation block B which is movably arranged on the bottom posts B and positioned below the second rotating shaft, a third rotating shaft, a fourth rotating shaft, a fifth rotating shaft and a sixth rotating shaft of which the two ends are respectively arranged on the folding pieces in a rotating way through rolling bearings and are sequentially distributed from left to right along the X direction, the two ends are respectively installed on the folding piece through rolling bearings in a rotating mode, a seventh rotating shaft, an eighth rotating shaft, a ninth rotating shaft and a tenth rotating shaft are sequentially distributed from left to right in the X direction, the first rotating shaft, the second rotating shaft, the third rotating shaft, the fourth rotating shaft, the fifth rotating shaft, the sixth rotating shaft, the seventh rotating shaft, the eighth rotating shaft, the ninth rotating shaft and the tenth rotating shaft are all provided with transmission rollers, the two ends are respectively installed on the folding piece through the rolling bearings in a rotating mode and are distributed along the X direction, two ends are respectively installed on a bottom column A and are located on a flat column A below a translation block A, two ends are respectively installed on a bottom column B and are located on a flat column B below the translation block B, and the transmission rollers are installed on the flat column A and are in butt joint with the flat column B.
The invention discloses a preferable dredging structure based on dyke engineering, which is characterized in that the transmission assembly also comprises a fixing seat arranged on one auxiliary shaft, a transmission motor arranged on the fixing seat, a belt pulley A and a belt pulley B which are arranged on an output shaft of the transmission motor and distributed along the Y direction, a belt pulley C arranged on a first rotating shaft and positioned on the front side of a transmission roller, a belt pulley D arranged on a second rotating shaft and positioned on the front side of the transmission roller, a belt pulley E arranged on a third rotating shaft and positioned on the rear side of the transmission roller, a belt pulley F and a belt pulley G arranged on a fourth rotating shaft and positioned on the front side of the transmission roller, a belt pulley H arranged on the fourth rotating shaft and positioned on the rear side of the transmission roller, a belt pulley J and a belt pulley K arranged on the fifth rotating shaft and positioned on the front side of the transmission roller, a pulley Y mounted on the fifth rotating shaft and located at the rear side of the transmission roller, a pulley L mounted on the sixth rotating shaft and located at the rear side of the transmission roller, a pulley M mounted on the seventh rotating shaft and located at the front side of the transmission roller, a pulley N, a pulley Q mounted on the eighth rotating shaft and located at the rear side of the transmission roller, a pulley T, a pulley U mounted on the ninth rotating shaft and located at the rear side of the transmission roller, a pulley V, a pulley W mounted on the tenth rotating shaft and located at the front side of the transmission roller, a pulley X, a ring belt A friction-driven with a pulley A and a pulley J, a ring belt B friction-driven with a pulley B and a pulley G, a ring belt C friction-driven with a pulley C and a pulley N, a ring belt D friction-driven with a pulley D and a pulley W, a ring belt E friction-driven with a pulley E and a pulley T, the belt F is in friction transmission with the belt pulley F and the belt pulley M, the belt G is in friction transmission with the belt pulley H and the belt pulley U, the belt H is in friction transmission with the belt pulley K and the belt pulley X, the belt J is in friction transmission with the belt pulley L and the belt pulley W, and the belt K is in friction transmission with the belt pulley Q and the belt pulley Y.
The invention discloses a preferable dredging structure for preventing silt based on dam engineering, which is characterized in that the folding piece comprises a plurality of rod piece groups distributed along the X direction, wherein two adjacent rod piece groups are mutually hinged, and the hinging points are respectively a P point and an R point; each rod member group comprises a pair of single rods which are mutually hinged and have an S point as a hinge point, and the two single rods are symmetrical about the S point;
the third rotating shaft, the fourth rotating shaft, the fifth rotating shaft and the sixth rotating shaft are in one-to-one correspondence with the rod piece set, the third rotating shaft is positioned right above the seventh rotating shaft, the fourth rotating shaft is positioned right above the eighth rotating shaft, the fifth rotating shaft is positioned right above the ninth rotating shaft, and the sixth rotating shaft is positioned right above the tenth rotating shaft; the P point is positioned on the central axis of the third rotating shaft, the R point is positioned on the central axis of the fourth rotating shaft, and the S point is positioned on the central axis of the fifth rotating shaft.
The invention discloses a preferable dredging structure for preventing silting based on dam engineering, which is characterized in that a sliding rail A is arranged on a bottom column A, and a translation block A is arranged on the sliding rail A; the bottom column B is provided with a sliding rail B, and the translation block B is arranged on the sliding rail B.
The invention discloses a preferable dredging structure for preventing silt based on dam engineering, which is characterized in that the bearing assembly comprises a pair of bearing plates which are arranged on a main shaft and are respectively positioned on the front side and the rear side of the main shaft, a bearing cylinder which is arranged on the bearing plates, and a bearing block A which is arranged on an output shaft of the bearing cylinder.
The invention discloses a preferable dredging structure for preventing silting based on dam engineering, which is characterized in that a platform cylinder is arranged on the platform, and a bearing block B is arranged on a telescopic rod of the platform cylinder.
The invention discloses a preferable dredging structure for preventing silting based on dam engineering, which is characterized in that the transition assembly comprises a limit bar arranged on a platform, a limit bar arranged on the platform, a temporary storage frame with one end hinged with the limit bar, a limit plate arranged on the temporary storage frame and positioned at one end of the temporary storage frame close to the limit bar, and a transition cylinder hinged with the limit bar and with a telescopic rod hinged with the limit plate.
The invention discloses a preferable dredging structure for preventing silting based on dam engineering, which is characterized in that the limiting frame comprises a bottom frame with a U-shaped structure, two ends of each vertical post are respectively arranged on the bottom frame, one end of each vertical post is arranged on the bottom frame, and the other end of each vertical post is arranged on the vertical post and is provided with a plurality of transverse posts distributed along the Y direction; the transition cylinder is installed on the diaphragm.
The invention discloses a preferable dredging structure for preventing silting based on dam engineering, which is characterized in that the driving assembly comprises a cushion block arranged on a platform, a driving air cylinder arranged on the cushion block, and a push plate which is arranged on an output rod of the driving air cylinder and is in a concave shape.
The invention discloses a preferable dredging structure for preventing silting based on dam engineering, which is characterized in that a fourth angle adjusting component for unloading a temporary storage frame is arranged on a transport truck, and an auxiliary plate is arranged on the fourth angle adjusting component;
the fourth angle adjusting component and the third angle adjusting component have the same structure.
The invention discloses a preferable dredging structure based on dam engineering, which is characterized in that the dredging device comprises a base arranged on a platform through a fastener, a winch arranged on the base, a lifting plate arranged on a steel wire rope of the winch, a cleaning shaft arranged at the bottom of the lifting plate through a rolling bearing, a cleaning motor arranged on the lifting plate and connected with the cleaning shaft through an output shaft, install on the clearance axle and along clearance axle central axis direction distribution, be used for smashing the clearance sword of silt, install on the lifter plate and pass the suction pipe of lifter plate, install the silt pump on the base, one end is connected with the silt pump and the conveyer pipe A of the other end and suction pipe connection, install the valve on the conveyer pipe, pass through the conveyer pipe B that support mounting is on the base and one end and conveyer pipe are connected.
The dredging steps of the invention are as follows:
s1: driving a transport truck to a dyke;
s2: starting the first angle adjusting assembly, and rotating the stretching assembly to a required angle; starting a transmission cylinder and expanding a transmission assembly; starting a third angle adjusting assembly, ensuring that the telescopic rod of the bearing cylinder is vertical to the horizontal plane, and enabling the bearing cylinder to drive the bearing block A to move downwards so as to enable the bearing block A to be abutted with the dam; starting a transmission motor and rotating a transmission roller;
s3: starting a second angle adjusting assembly to rotate the platform to be parallel to the horizontal plane; starting a platform cylinder to enable the bearing block B to be abutted with the dykes and dams;
s4: starting a winch to drive the dredging device to move underwater; starting a dredging motor to clean sludge of the dam, sucking the sludge by a sludge suction pipe, and conveying the sludge into a temporary storage frame through a conveying pipe A and a conveying pipe B;
s5: after the sludge in the temporary storage frame is full, the driving assembly pushes the temporary storage frame, and the transmission assembly conveys the temporary storage frame to a position close to a transport truck;
s6: the fourth angle adjusting component drives the auxiliary plate to rotate to a required angle; the transition cylinder drives the temporary storage frame to rotate, and discharging is completed.
The invention has the beneficial effects that: the invention overcomes the defects of the prior art, and provides a special dredging structure for preventing sludge in a dam engineering, which solves the problems that the existing dam sludge is cleaned mainly by virtue of a dredging dredger, but the dredging dredger has high cost and can not enter a shallow water area for construction, a propeller under the dredger is easy to be wound by weeds in water, and the sludge cleaning efficiency is low.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a top view of a fourth angle adjustment assembly of the present invention;
FIG. 4 is a top view of the extension device of the present invention;
FIG. 5 is an enlarged view of part A of the present invention;
FIG. 6 is a front view of the extension device of the present invention;
FIG. 7 is a top view of the transfer assembly of the present invention;
FIG. 8 is a front view of a temporary storage device of the present invention;
FIG. 9 is a top view of a temporary storage device according to the present invention;
FIG. 10 is a schematic diagram of a temporary storage frame according to the present invention.
The figures are labeled as follows:
100-a transport truck, 101-a fourth adjustment assembly, 102-an auxiliary board.
200-stretching device, 201-supporting frame, 202-first angle adjusting component, 204-transmission component, 205-supporting column, 206-third angle adjusting component, 207-bearing component, 208-main shaft, 209-first worm wheel, 210-first worm, 211-first adjusting motor, 212-bottom column A, 213-first rotating shaft, 214-translation block A, 215-folding piece, 216-bottom column B, 217-second rotating shaft, 218-translation block B, 219-third rotating shaft, 220-fourth rotating shaft, 221-fifth rotating shaft, 222-sixth rotating shaft, 223-seventh rotating shaft, 224-eighth rotating shaft, 225-ninth rotating shaft, 226-tenth rotating shaft, 227-transmission roller, 228-auxiliary shaft, 229-flat column A, 230-flat column B, 231-transfer cylinder, 232-rod set, 233-single rod, 234-stationary seat, 235-transfer motor, 236-pulley A, 237-pulley B, 238-pulley C, 239-pulley D, 240-pulley E, 241-pulley F, 242-pulley G, 243-pulley H, 244-pulley J, 245-pulley K, 246-pulley Y, 247-pulley L, 248-pulley M, 249-pulley N, 250-pulley Q, 251-pulley T, 252-pulley U, 253-pulley V, 254-pulley W, 255-pulley X, 256-endless belt A, 257-endless belt B, 258-endless belt C, 259-endless belt D, 260-endless belt E, 261-endless belt F, 262-endless belt G, 263-endless belt H, 264-endless belt J, 265-endless belt K, 266-bearing plate, 267-bearing cylinder, 268-bearing block a.
300-platform device, 301-second angle adjustment assembly, 303-platform, 304-platform cylinder, 305-bearing block B.
400-temporary storage devices, 401-transition assemblies, 402-driving assemblies, 403-limit bars, 404-limit bars, 405-temporary storage frames, 406-limit plates, 407-transition cylinders, 408-underframe, 409-vertical columns, 410-horizontal columns, 412-cushion blocks, 413-driving cylinders and 414-pushing plates.
500-dredging device, 501-base, 502-hoist, 503-lifting plate, 504-cleaning shaft, 506-cleaning knife, 507-suction pipe, 508-sludge pump, 509-conveying pipe A, 510-conveying pipe B, 511-valve.
Detailed Description
The invention is further described with reference to the drawings and detailed description.
As shown in fig. 1 and 2, a dredging structure and a dredging method for preventing dredging on the basis of a dam engineering, which comprises a transportation truck 100, an extension device 200 installed on the transportation truck 100, a platform 302 device 300 installed on the extension device 200 and located at one end of the extension device 200 away from the transportation truck 100, a dredging device 500 installed on the platform 302 device 300, and a temporary storage device 400 placed on the platform 302 device 300.
The dredging structure is transported to the dykes and dams through the transport truck 100, the sludge in the dykes and dams is directly cleaned on land, the problem that the dredging and cleaning of the conventional dykes and dams generally depend on a dredger to work in shallow water is solved, the problem that the conventional dredging dredger is high in cost and cannot enter the shallow water to construct is solved, and the screw propeller below the dredger is easily wound by weeds in water and has low sludge cleaning efficiency.
As shown in fig. 3, the transport truck 100 is provided with a fourth angle adjustment unit for unloading the temporary storage frame 405, and the auxiliary plate 102 is mounted on the fourth angle adjustment unit. The auxiliary plate 102 is driven to rotate by the fourth angle adjusting component, so that the temporary storage frame 405 is convenient to discharge, a channel for entering the transport truck 100 is provided for the sludge in the temporary storage frame 405, and the sludge is prevented from falling on the ground.
As shown in fig. 4 and 6, the stretching device 200 includes a support frame 201 mounted on the transport truck 100, a first angle adjusting assembly 202 mounted on the support frame 201, a plurality of transmission assemblies 204 mounted on the first angle adjusting assembly 202 and used for conveying the temporary storage device 400 and distributed along the X direction, a third angle adjusting assembly 206 mounted on the support column 205 and a bearing assembly 207 mounted on the third angle adjusting assembly 206 and used for bearing, wherein two adjacent transmission assemblies 204 are connected through a plurality of support columns 205.
As shown in fig. 5, the first angle adjusting assembly 202 has the same structure as the third angle adjusting assembly 206 and the fourth angle adjusting assembly, and the first angle adjusting assembly 202 includes a main shaft 208 having both ends rotatably mounted on a support frame 201 through rolling bearings, a first worm wheel 209 mounted on the main shaft 208, a first worm 210 rotatably mounted on the support frame 201 through rolling bearings and engaged with the first worm wheel 209, and a first adjusting motor 211 mounted on the support frame 201 and having an output shaft connected to the first worm wheel 210.
The stretching device 200 is driven to rotate through the first angle adjusting component 202, so that the stretching device 200 can adapt to various dams with different inclinations, the universality and the practicability are greatly improved, and a user can adjust according to own needs.
As shown in fig. 7, the transfer assembly 204 includes a pair of bottom posts a212 mounted on the main shaft 208 and distributed in the Y direction, a first rotation shaft 213 rotatably mounted on the bottom posts a212 at both ends thereof by rolling bearings, a translation block a214 movably mounted on the bottom posts a212 and positioned above the main shaft 208, a pair of folding members 215 disposed in the Y direction and positioned at both front and rear sides of the first transfer roller 227, a pair of bottom posts B216 distributed in the Y direction and positioned at one end of the folding members 215 remote from the bottom posts a212, a second rotation shaft 217 rotatably mounted on the bottom posts B216 at both ends thereof by rolling bearings, a translation block B218 movably mounted on the bottom posts B216 and positioned below the second rotation shaft 217, a third rotation shaft 219, a fourth rotation shaft 220, a fifth rotation shaft 221, and a sixth rotation shaft 222 rotatably mounted on the folding members 215 by rolling bearings at both ends thereof and sequentially distributed from left to right in the X direction, the transmission rollers 227 are respectively arranged on the folding piece 215 through rolling bearings at two ends, a seventh rotating shaft 223, an eighth rotating shaft 224, a ninth rotating shaft 225 and a tenth rotating shaft 226 which are respectively arranged on the folding piece 215 from left to right in the X direction in a rotating manner, a flat column A229 which is respectively arranged on the bottom column A212 and is positioned below the translation block A214 at two ends, a flat column B230 which is respectively arranged on the bottom column B216 and is positioned below the translation block B218 at two ends, and a transmission cylinder 231 which is respectively arranged on the flat column A229 and is in butt joint with the flat column B230 through a telescopic rod.
The folding piece 215 comprises a plurality of rod piece groups 232 distributed along the X direction, wherein two adjacent rod piece groups 232 are mutually hinged, and the hinging points are respectively P points and R points; each bar set 232 includes a pair of single bars 233 hinged to each other with a hinge point S, and the two single bars 233 are symmetrical about the S point;
the third rotating shaft 219, the fourth rotating shaft 220, the fifth rotating shaft 221 and the sixth rotating shaft 222 are in one-to-one correspondence with the rod piece set 232, the third rotating shaft 219 is positioned right above the seventh rotating shaft 223, the fourth rotating shaft 220 is positioned right above the eighth rotating shaft 224, the fifth rotating shaft 221 is positioned right above the ninth rotating shaft 225, and the sixth rotating shaft 222 is positioned right above the tenth rotating shaft 226; the point P is located on the central axis of the third rotating shaft 219, the point R is located on the central axis of the fourth rotating shaft 220, and the point S is located on the central axis of the fifth rotating shaft 221.
A sliding rail A is arranged on the bottom column A212, and a translation block A214 is arranged on the sliding rail A; the bottom post B216 is provided with a sliding rail B, and the translation block B218 is provided on the sliding rail B.
The transmission assembly 204 forms an expandable and foldable structure through the folding piece 215, the first rotating shaft 213, the second rotating shaft 217 and the like, so that the transmission assembly is convenient to transport, and the whole volume is greatly reduced; the telescopic rod of the transmission cylinder 231 drives the bottom column B216 to move, the distance between the bottom column A212 and the bottom column B216 is changed, the translation block A214 moves on the bottom column A212, and the translation block B218 moves on the bottom column B216, so that the whole transmission assembly 204 is unfolded or folded.
The transfer assembly 204 further includes a fixed seat 234 mounted on one of the auxiliary shafts 228, the fixed seat 234 being located between the fourth rotating shaft 220 and the fifth rotating shaft 221, a transfer motor 235 mounted on the fixed seat 234, a pulley a236, a pulley B237 mounted on an output shaft of the transfer motor 235 and distributed in the Y direction, a pulley C238 mounted on the first rotating shaft 213 and located on a front side of the transfer roller 227, a pulley D239 mounted on the second rotating shaft 217 and located on a front side of the transfer roller 227, a pulley E240 mounted on the third rotating shaft 219 and located on a rear side of the transfer roller 227, a pulley F241, a pulley G242 mounted on the fourth rotating shaft 220 and located on a front side of the transfer roller 227, a pulley H243 mounted on the fourth rotating shaft 220 and located on a rear side of the transfer roller 227, a pulley J244, a pulley K245 mounted on the fifth rotating shaft 221 and located on a rear side of the transfer roller 227, a pulley Y246 mounted on the fifth rotating shaft 221 and located on a rear side of the transfer roller 227, a pulley L247 mounted on the sixth rotation shaft 222 and located at the rear side of the transmission roller 227, a pulley M248 and a pulley N249 mounted on the seventh rotation shaft 223 and located at the front side of the transmission roller 227, a pulley Q250 and a pulley T251 mounted on the eighth rotation shaft 224 and located at the rear side of the transmission roller 227, a pulley U252 and a pulley V253 mounted on the ninth rotation shaft 225 and located at the rear side of the transmission roller 227, a pulley W254 and a pulley X255 mounted on the tenth rotation shaft 226 and located at the front side of the transmission roller 227, a pulley A256 simultaneously in friction transmission with a pulley A236 and a pulley J244, a pulley B257 simultaneously in friction transmission with a pulley B237 and a pulley G242, a pulley C238 simultaneously in friction transmission with a pulley C238 and a pulley N249, a pulley D259 simultaneously in friction transmission with a pulley D239 and a pulley W254, a pulley E240, the belt pulley T251 is in friction transmission with the belt pulley F241, the belt pulley M248 is in friction transmission with the belt pulley F261, the belt pulley H243, the belt pulley U252 is in friction transmission with the belt pulley G262, the belt pulley K245 and the belt pulley X255 is in friction transmission with the belt pulley H263, the belt pulley L247 and the belt pulley W254 is in friction transmission with the belt pulley J264, and the belt pulley Q250 and the belt pulley Y246 is in friction transmission with the belt pulley K265.
The transmission component 204 transmits power through belt transmission to finish the transportation of the temporary storage frame 405; the belt pulley A236 and the belt pulley B237 are driven to rotate by the transmission motor 235, the seventh rotating shaft 223, the eighth rotating shaft 224, the ninth rotating shaft 225 and the tenth rotating shaft 226 are utilized to transmit motion by utilizing a plurality of belts to drive the first rotating shaft 213, the second rotating shaft 217, the third rotating shaft 219, the fourth rotating shaft 220, the fifth rotating shaft 221 and the sixth rotating shaft 222 to rotate, so that the transmission roller 227 rotates to finish the transportation of the temporary storage frame 405.
The bearing assembly 207 includes a pair of bearing plates 266 mounted on the main shaft 208 and located on both front and rear sides of the main shaft 208, a bearing cylinder 267 mounted on the bearing plates 266, and a bearing block a268 mounted on an output shaft of the bearing cylinder 267.
The strength of the whole structure is improved through the bearing assembly 207, so that the problems of overlong and lack of support of the plurality of transmission assemblies 204 are avoided; the bearing block A268 is driven to move through the bearing cylinder 267, so that the bearing block A268 is abutted with the dam to disperse gravity and improve strength.
As shown in fig. 8 and 9, the platform 302 arrangement 300 includes a second angle adjustment assembly 301 mounted on the transport assembly 204 furthest from the haul truck 100, and a platform 302 mounted on the second angle adjustment assembly 301.
The second angle adjustment assembly 301 is identical in structure to the first angle adjustment assembly 202; the platform 302 is provided with a platform 302 cylinder, and a bearing block B305 is arranged on a telescopic rod of the platform 302 cylinder.
The platform 302 is driven to rotate by the second angle adjusting component 301, so that the platform 302 is parallel to the horizontal plane, and conditions are provided for the operation of the temporary storage device 400 and the dredging device 500.
The temporary storage 400 includes a transition assembly 401 for transporting sludge, and a drive assembly 402 mounted on the platform 302 for moving the transition assembly 401 onto the transport assembly 204.
The transition assembly 401 comprises a limit bar 403 arranged on the platform 302, a limit frame 404 arranged on the platform 302, a temporary storage frame 405 with one end hinged with the limit frame 404, a limit plate 406 arranged on the temporary storage frame 405 and positioned at one end of the temporary storage frame 405 close to the limit bar 403, and a transition cylinder 407 hinged with the limit frame 404 and a telescopic rod hinged with the limit plate 406.
As shown in fig. 10, the limiting frame 404 includes a bottom frame 408 having a U-shaped structure, and vertical posts 409 having both ends respectively mounted on the bottom frame 408, and a plurality of cross posts 410 having one end mounted on the bottom frame 408 and the other end mounted on the vertical posts 409 and distributed along the Y direction; the transition cylinder 407 is mounted on the cross-post 410.
The temporary storage frame 405 is driven to rotate by the transition cylinder 407, so that the sludge in the temporary storage frame 405 is poured into the transport truck 100 to finish unloading.
The drive assembly 402 includes a block 412 mounted on the platform 302, a drive cylinder 413 mounted on the block 412, and a push plate 414 mounted on the output shaft of the drive cylinder 413 and having a "concave" shape.
Pushing the temporary storage frame 405 onto the transfer module 204 by the driving module 402; the concave push plate 414 structure is utilized to reserve a position for the transition cylinder 407, so that interference with the transition cylinder 407 is avoided.
The dredging device 500 comprises a base 501 installed on the platform 302 through fasteners, a winch 502 installed on the base 501, a lifting plate 503 installed on a steel wire rope of the winch 502, a cleaning shaft 504 installed at the bottom of the lifting plate 503 through rolling bearings, a cleaning motor installed on the lifting plate 503 and connected with the cleaning shaft 504 through output shafts, cleaning knives 506 installed on the cleaning shaft 504 and distributed along the central axis direction of the cleaning shaft 504 and used for smashing sludge, a sludge suction pipe 507 installed on the lifting plate 503 and penetrating through the lifting plate 503, a sludge pump 508 installed on the base 501, a conveying pipe A509 with one end connected with the sludge pump 508 and the other end connected with the sludge suction pipe 507, a valve 511 installed on the conveying pipe, and a conveying pipe B510 installed on the base 501 through a bracket and with one end connected with the conveying pipe.
The dredging device 500 drives the lifting plate 503 to move through the winch 502, the cleaning knife 506 enters a silt area, the cleaning knife 506 breaks and separates silt, the silt sucking pipe 507 is convenient to suck the silt under the action of the silt pump 508, and the silt is transported into the temporary storage frame 405 by the aid of the conveying pipe A509 and the conveying pipe B510.
The invention relates to a dredging structure for preventing siltation based on dam engineering, which comprises the following working principles:
s1: driving the transport truck 100 to a dyke;
s2: activating the first angle adjustment assembly 202 to rotate the extension assembly to a desired angle; activating the transfer cylinder 231 and expanding the transfer assembly 204; starting the third angle adjusting assembly 206 to ensure that the telescopic rod of the bearing cylinder 267 is vertical to the horizontal plane, and the bearing cylinder 267 drives the bearing block A268 to move downwards so as to enable the bearing block A268 to be abutted with the dam; starting a transmission motor 235, and rotating a transmission roller 227;
s3: activating the second angle adjustment assembly 301 to rotate the platform 302 parallel to the horizontal; starting a platform 302 cylinder to enable the bearing block B305 to be abutted with the dykes and dams;
s4: starting a winch 502 to drive the dredging device 500 to move underwater; starting a dredging motor to clean the sludge of the dam, sucking the sludge by a sludge sucking pipe 507, and conveying the sludge into the temporary storage frame 405 through a conveying pipe A509 and a conveying pipe B510;
s5: after the temporary storage frame 405 is full of sludge, the driving component 402 pushes the temporary storage frame 405, and the transmission component 204 conveys the temporary storage frame 405 to a place close to the transport truck 100;
s6: the fourth angle adjusting component drives the auxiliary plate 102 to rotate to a required angle; the transition cylinder 407 drives the temporary storage frame 405 to rotate, and the unloading is completed.
Many other changes and modifications may be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (6)
1. The utility model provides a prevent silt dredging structure based on dyke engineering, includes transportation truck (100), installs extension fixture (200) on transportation truck (100), installs on extension fixture (200) and is located platform device (300) of transportation truck (100) one end are kept away from to extension fixture (200), installs desilting device (500) on platform device (300), arranges temporary storage device (400) on platform device (300), its characterized in that:
the stretching device (200) comprises a support frame (201) arranged on the transport truck (100), a first angle adjusting component (202) arranged on the support frame (201), a plurality of transmission components which are arranged on the first angle adjusting component (202) and are used for conveying temporary storage devices (400) along the X direction, two adjacent transmission components are connected through a plurality of support columns (205), a third angle adjusting component (206) arranged on the support columns (205), and a bearing component (207) arranged on the third angle adjusting component (206) and used for bearing;
the platform device (300) comprises a second angle adjustment assembly (301) mounted on the transmission assembly furthest from the haul truck (100), a platform (302) mounted on the second angle adjustment assembly (301);
the temporary storage device (400) comprises a transition assembly (401) for transporting sludge, a driving assembly (402) which is arranged on the platform (302) and used for moving the transition assembly (401) onto the transmission assembly;
the first angle adjusting component (202), the second angle adjusting component (301) and the third adjusting component have the same structure;
the first angle adjusting assembly (202) comprises a main shaft (208) with two ends rotatably mounted on the support frame (201) through rolling bearings, a first worm wheel (209) mounted on the main shaft (208), a first worm (210) rotatably mounted on the support frame (201) through the rolling bearings and meshed with the first worm wheel (209), and a first adjusting motor (211) mounted on the support frame (201) and connected with the first worm (210) through an output shaft;
the transmission assembly comprises a pair of bottom columns A (212) which are arranged on a main shaft (208) and distributed along the Y direction, a first rotating shaft (213) which is arranged on the bottom columns A (212) at two ends respectively through rolling bearings in a rotating way, a translation block A (214) which is arranged on the bottom columns A (212) in a moving way and positioned above the main shaft (208), a pair of folding pieces (215) which are arranged along the Y direction and respectively positioned at the front side and the rear side of a transmission roller (227), a pair of bottom columns B (216) which are distributed along the Y direction and positioned at one end of the folding pieces (215) far away from the bottom columns A (212), a second rotating shaft (217) which is arranged on the bottom columns B (216) in a rotating way through rolling bearings at two ends respectively, a translation block B (218) which is arranged on the bottom columns B (216) in a moving way and positioned below the second rotating shaft (217), a third rotating shaft (219), a fourth rotating shaft (220), a fifth rotating shaft (221) and a sixth rotating shaft (222) which are respectively arranged on the folding pieces (215) in a rotating way from left to right in the X direction through rolling bearings in a rotating way, a pair of folding pieces (226), a fourth rotating shaft (226) which is respectively arranged on the folding pieces (215) in a rotating way from left to right in sequence, a rotating shaft (226), a second rotating shaft (226) which is arranged on the second rotating shaft (226) in a rotating way), a rotating shaft (213) which is arranged on the eight rotating shaft in a moving way in a mode, and a rotating way The transmission device comprises a fifth rotating shaft (221), a sixth rotating shaft (222), a seventh rotating shaft (223), an eighth rotating shaft (224), a ninth rotating shaft (225) and a tenth rotating shaft (226), wherein transmission rollers (227) are respectively arranged at the two ends of the fifth rotating shaft, the sixth rotating shaft (222), the seventh rotating shaft, the eighth rotating shaft (224), the ninth rotating shaft (225) and the tenth rotating shaft (226), a plurality of auxiliary shafts (228) which are respectively arranged on a folding piece (215) in a rotating manner through rolling bearings and distributed along the X direction, a flat column A (229) which is respectively arranged on a bottom column A (212) and is positioned below a translation block A (214) at the two ends of the flat column A (229), a flat column B (230) which is respectively arranged on a bottom column B (216) and is positioned below the translation block B (218), and a transmission cylinder (231) which is arranged on the flat column A (229) and is in butt joint with the flat column B (230) through a telescopic rod;
the bearing assembly (207) comprises a pair of bearing plates (266) which are arranged on the main shaft (208) and are respectively positioned on the front side and the rear side of the main shaft (208), a bearing cylinder (267) which is arranged on the bearing plates (266), and a bearing block A (268) which is arranged on the output shaft of the bearing cylinder (267);
the platform (302) is provided with a platform cylinder (304), and a bearing block B (305) is arranged on a telescopic rod of the platform (302) cylinder.
2. The dredging structure as claimed in claim 1, wherein the transfer assembly further comprises a fixing base (234) installed on one of the auxiliary shafts (228), the fixing base (234) being located between the fourth rotating shaft (220) and the fifth rotating shaft (221), a transfer motor (235) installed on the fixing base (234), a pulley A (236), a pulley B (237) installed on an output shaft of the transfer motor (235) and distributed in the Y direction, a pulley C (238) installed on the first rotating shaft (213) and located at a front side of the transfer roller (227), a pulley D (239) installed on the second rotating shaft (217) and located at a front side of the transfer roller (227), a pulley E (240) installed on the third rotating shaft (219) and located at a rear side of the transfer roller (227), a pulley F (241), a pulley G (242) installed on the fourth rotating shaft (220) and located at a rear side of the transfer roller (227), a pulley H (243) installed on the fifth rotating shaft (220) and located at a rear side of the transfer roller (227), a pulley K (245) installed on the third rotating shaft (219) and located at a rear side of the transfer roller (227), pulley L (247) mounted on the sixth rotation shaft (222) and located at the rear side of the conveying roller (227), pulley M (248) mounted on the seventh rotation shaft (223) and located at the front side of the conveying roller (227), pulley N (249), pulley Q (250) mounted on the eighth rotation shaft (224) and located at the rear side of the conveying roller (227), pulley T (251), pulley U (252) mounted on the ninth rotation shaft (225) and located at the rear side of the conveying roller (227), pulley V (253), pulley W (254) mounted on the tenth rotation shaft (226) and located at the front side of the conveying roller (227), pulley X (255) while friction-transmitting endless belt A (256) with pulley A (236) and pulley J (244), endless belt B (257) while friction-transmitting endless belt C (258) with pulley C (238) and pulley N (249), endless belt D (239) while friction-transmitting endless belt D (259), pulley W (254), belt E (251) while friction-transmitting endless belt E (241) with pulley E (240), endless belt F (261) while friction-transmitting endless belt F (260), an endless belt G (262) which is in friction transmission with a belt pulley H (243) and a belt pulley U (252), an endless belt H (263) which is in friction transmission with a belt pulley K (245) and a belt pulley X (255), an endless belt J (264) which is in friction transmission with a belt pulley L (247) and a belt pulley W (254), and an endless belt K (265) which is in friction transmission with a belt pulley Q (250) and a belt pulley Y (246);
the folding piece (215) comprises a plurality of rod piece groups (232) distributed along the X direction, two adjacent rod piece groups (232) are mutually hinged, and the hinging points are respectively P points and R points; each rod piece group (232) comprises a pair of single rods (233) hinged with each other and with a hinge point being an S point, and the two single rods (233) are symmetrical about the S point;
the third rotating shaft (219), the fourth rotating shaft (220), the fifth rotating shaft (221) and the sixth rotating shaft (222) are in one-to-one correspondence with the rod piece group (232), the third rotating shaft (219) is positioned right above the seventh rotating shaft (223), the fourth rotating shaft (220) is positioned right above the eighth rotating shaft (224), the fifth rotating shaft (221) is positioned right above the ninth rotating shaft (225), and the sixth rotating shaft (222) is positioned right above the tenth rotating shaft (226); the P point is positioned on the central axis of the third rotating shaft (219), the R point is positioned on the central axis of the fourth rotating shaft (220), and the S point is positioned on the central axis of the fifth rotating shaft (221).
3. A dredging structure for preventing silting based on dam engineering as claimed in claim 2, wherein the transition assembly (401) comprises a limit bar (403) installed on the platform (302), a limit bar (404) located on the platform (302), a temporary storage frame (405) with one end hinged with the limit bar (404), a limit plate (406) installed on the temporary storage frame (405) and located at one end of the temporary storage frame (405) close to the limit bar (403), and a transition cylinder (407) hinged with the limit bar (404) and with a telescopic rod hinged with the limit plate (406);
the limiting frame (404) comprises a bottom frame (408) with a U-shaped structure, vertical posts (409) with two ends respectively arranged on the bottom frame (408), and a plurality of transverse posts (410) with one end arranged on the bottom frame (408) and the other end arranged on the vertical posts (409) and distributed along the Y direction;
the driving assembly (402) comprises a cushion block (412) arranged on the platform (302), a driving air cylinder (413) arranged on the cushion block (412), and a push plate (414) which is arranged on an output rod of the driving air cylinder (413) and is in a concave shape.
4. A dredging structure for preventing silt based on dam construction according to claim 3, wherein said transporting truck (100) is provided with a fourth angle adjusting assembly for unloading the temporary storage frame (405), and an auxiliary plate (102) is provided on the fourth angle adjusting assembly; the fourth angle adjustment assembly is structurally identical to the third angle adjustment assembly (206).
5. The dredging structure as claimed in claim 4, wherein the dredging device (500) comprises a base (501) mounted on the platform (302) by fasteners, a hoist (502) mounted on the base (501), a lifting plate (503) mounted on a wire rope of the hoist (502), a cleaning shaft (504) mounted on the bottom of the lifting plate (503) by rolling bearings, a cleaning motor mounted on the lifting plate (503) and having an output shaft connected to the cleaning shaft (504), cleaning blades (506) mounted on the cleaning shaft (504) and distributed in a direction of a central axis of the cleaning shaft (504), a sludge suction pipe (507) mounted on the lifting plate (503) and penetrating through the lifting plate (503), a sludge pump (508) mounted on the base (501), a conveying pipe a (509) having one end connected to the sludge pump (508) and the other end connected to the sludge suction pipe (507), a valve (511) mounted on the conveying pipe, and a conveying pipe B (510) mounted on the base (503) by brackets and having one end connected to the conveying pipe.
6. A dredging method for a dredging structure for a dam-based engineering according to claim 5, wherein the dredging steps are as follows:
s1: driving a transport truck (100) to a dyke;
s2: activating the first angle adjustment assembly (202) to rotate the extension assembly to a desired angle; starting transmission cylinder
(231) The transmission assembly is unfolded; starting a third angle adjusting assembly (206), ensuring that a telescopic rod of a bearing cylinder (267) is vertical to the horizontal plane, and enabling the bearing cylinder (267) to drive a bearing block A (268) to move downwards so as to enable the bearing block A (268) to be abutted with a dam; starting a transmission motor (235), and rotating a transmission roller (227);
s3: activating the second angle adjustment assembly (301) to rotate the platform (302) parallel to the horizontal plane; a stage cylinder (304) is started to enable the bearing block B (305) to be abutted against the dykes and dams;
s4: starting a winch (502) to drive the dredging device (500) to move underwater; starting a dredging motor to clean the sludge of the dam, sucking the sludge by a sludge sucking pipe (507), and conveying the sludge into a temporary storage frame (405) through a conveying pipe A (509) and a conveying pipe B (510);
s5: after the temporary storage frame (405) is full of sludge, the driving component (402) pushes the temporary storage frame (405), and the transmission component conveys the temporary storage frame (405) to a position close to the transport truck (100);
s6: the fourth angle adjusting component drives the auxiliary plate (102) to rotate to a required angle; the transition cylinder (407) drives the temporary storage frame (405) to rotate, and the unloading is completed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210471771.3A CN114875989B (en) | 2022-04-29 | 2022-04-29 | Anti-clogging dredging structure and dredging method based on dam engineering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210471771.3A CN114875989B (en) | 2022-04-29 | 2022-04-29 | Anti-clogging dredging structure and dredging method based on dam engineering |
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| CN114875989B true CN114875989B (en) | 2023-11-03 |
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| CN112502227A (en) * | 2020-12-07 | 2021-03-16 | 张方娥 | Dam sludge cleaning equipment |
| CN112813903A (en) * | 2021-03-04 | 2021-05-18 | 中铁十一局集团西安建设有限公司 | Dredging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4021549A1 (en) * | 1990-07-09 | 1992-01-23 | Alfred Wehrle | Machine for cleaning and levelling verges - comprises motor-driven milling and delivery worm fitted on front of narrow track road vehicle |
| CN110130434A (en) * | 2019-06-21 | 2019-08-16 | 华北水利水电大学 | The long side slope dredging filter of channel |
| CN211690498U (en) * | 2020-01-19 | 2020-10-16 | 毛彦彬 | Hydraulic engineering desilting device |
| CN211922783U (en) * | 2020-02-24 | 2020-11-13 | 叶磊 | Circulating desilting device for hydraulic engineering |
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| CN114875989A (en) | 2022-08-09 |
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