CN110761352B - Trailing suction hopper dredger harrow head based on supplementary broken rock of ultrasonic wave - Google Patents
Trailing suction hopper dredger harrow head based on supplementary broken rock of ultrasonic wave Download PDFInfo
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- CN110761352B CN110761352B CN201911036238.9A CN201911036238A CN110761352B CN 110761352 B CN110761352 B CN 110761352B CN 201911036238 A CN201911036238 A CN 201911036238A CN 110761352 B CN110761352 B CN 110761352B
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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
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- 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
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- 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
- E02F3/9293—Component parts of suction heads, e.g. edges, strainers for preventing the entry of stones or the like
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a trailing suction hopper dredger drag head based on ultrasonic-assisted rock breaking, which comprises a trailing suction hopper dredger drag head device and an ultrasonic auxiliary device. The harrow suction head and the cutter frame of the harrow head device of the harrow suction dredger are connected through the plunger cylinder, the plunger rod, the big bolt and the big nut, the harrow teeth are connected on the cutter frame through harrow teeth screws, and the rotation of the cutter frame and the harrow teeth relative to the harrow suction head can be realized by controlling hydraulic pressure through an operating system. The ultrasonic auxiliary device comprises an ultrasonic generator, an ultrasonic switch and an ultrasonic device welded on the rake suction head. The ultrasonic cutter head and the rock are resonated by the ultrasonic auxiliary device, so that gaps and cracks are formed on the rock, the integrity of the rock is damaged, the strength of the rock is reduced, the excavating resistance of the rake teeth is correspondingly reduced, the excavating efficiency is improved, the dredging energy consumption is reduced, and the aim of optimizing the rake head of the trailing suction hopper dredger is finally fulfilled.
Description
Technical Field
The invention relates to a drag suction dredger drag head based on ultrasonic-assisted rock breaking, and belongs to the technical field of dredging equipment.
Background
With the rapid development of the shipping industry in China, the capital construction projects such as ports and channels are developed vigorously, so that the demand for dredging ships in China is increasing day by day. The drag suction dredger is the most commonly used dredging ship in the dredging engineering, has strong wind wave resistance, small interference to shipping, large dredging depth and unlimited conveying distance, and is suitable for engineering of sea reclamation, large-scale port channel construction and maintenance and the like in deep water and distance operation. With the gradual widening and deepening of ports and channels at home and abroad, the dredging engineering of hard clay, cemented sand and even rock substrate is continuously increased, aiming at rock and soil with the uniaxial saturated compressive strength of more than 20MPa, the drag suction dredger has weak dredging capability, low efficiency and high energy consumption, the application range of the drag suction dredger is limited, and the construction cost of the ports and the channels is increased. Therefore, certain improvements in drag suction dredgers to increase their ability to dredge rocks are urgently required. The drag head is used as a main part of the drag suction dredger, and the performance of the drag head is directly related to the working efficiency and energy consumption of the drag suction dredger. The traditional drag head has the problems of insufficient rock breaking capacity, easiness in damage, high energy consumption, poor effect of cutting uneven rocks and the like when dealing with hard rocks. The invention provides the trailing suction hopper dredger harrow head based on ultrasonic wave auxiliary rock breaking, the ultrasonic device is used for assisting the trailing suction hopper dredger harrow head to cut broken rocks, and during excavation operation, the ultrasonic cutter head contacts the rocks before the harrow teeth and resonates with the rocks, so that the rocks form gaps and cracks, the integrity of the rocks is damaged, the strength of the rocks is reduced, the excavation resistance of the harrow teeth is correspondingly reduced, the excavation efficiency is improved, the dredging energy consumption is reduced, and finally the aim of optimizing the trailing suction hopper dredger harrow head is achieved. In addition, when meeting uneven rock, through ultrasonic device's flexible, make ultrasonic wave tool bit and rock contact all the time to this efficiency that improves the cutting uneven rock.
Disclosure of Invention
The invention aims to solve the problems that a drag head of a drag suction dredger in the prior art is insufficient in rock breaking capacity, easy to damage, high in energy consumption, poor in effect of cutting uneven rocks and the like when dealing with hard rocks, and provides the drag head of the drag suction dredger based on ultrasonic-assisted rock breaking.
The technical scheme is as follows:
a trailing suction hopper dredger harrow head based on ultrasonic wave assists broken rock includes trailing suction hopper dredger harrow head device and ultrasonic wave auxiliary device, and ultrasonic wave auxiliary device welds on the trailing suction head of trailing suction hopper dredger harrow head device.
Further, the drag head device of the drag suction dredger comprises a drag suction head, a cutter frame, a plunger cylinder, a plunger rod, a drag tooth screw, a drag tooth, a large bolt and a large nut; the harrow suction head is connected with the cutter frame through the plunger cylinder, the plunger rod, the large bolt and the large nut, the harrow teeth are connected on the cutter frame through harrow teeth screws, and the harrow head device of the harrow suction dredger can realize the rotation of the cutter frame and the harrow teeth relative to the harrow suction head by controlling hydraulic pressure through an operating system.
The ultrasonic auxiliary device comprises an ultrasonic generator, an ultrasonic switch and a plurality of ultrasonic devices welded on the rake suction head, wherein the ultrasonic generator is connected with the ultrasonic switch, the ultrasonic switch is connected with each ultrasonic device, and each ultrasonic device comprises a signal cable, a metal shell, a retainer ring, a wiring board, a conductive column, a sound absorption material, a piezoelectric plate, an amplitude transformer, a wireless sensor and an ultrasonic cutter head; the ultrasonic switch is connected to the upper end of the signal cable penetrating through the metal shell, the check ring, the wiring board, the conductive column and the piezoelectric sheet are all arranged in the metal shell, the signal cable is connected to the wiring board, the check ring is arranged above the wiring board, the conductive column is arranged on the wiring board, the conductive column extends downwards to the piezoelectric sheet below the conductive column, the amplitude transformer is connected to the lower portion of the piezoelectric sheet, the ultrasonic tool bit is arranged at the lower end of the amplitude transformer, and the wireless sensor is arranged on the rod wall of the amplitude transformer.
The ultrasonic device further comprises a sound absorption material arranged above the piezoelectric sheet.
The wireless sensor in the ultrasonic device scans the rock frequency in real time and feeds the rock frequency back to the operating system, and the operating system adjusts the ultrasonic frequency sent by the ultrasonic generator in real time according to the feedback result to keep the frequency consistent with the current rock frequency, so that the ultrasonic cutter head in the ultrasonic device and the rock resonate to form gaps and cracks on the rock, the integrity of the rock is damaged, the strength of the rock is reduced, the excavating resistance of the rake teeth is correspondingly reduced, the excavating efficiency is improved, the dredging energy consumption is reduced, and the aim of optimizing the rake head of the trailing suction dredger is finally achieved.
When meeting non-flat rock, when wireless sensor receives the impact load of non-flat rock promptly, wireless sensor feeds back this signal to operating system, and operating system realizes ultrasonic device's flexible through control hydraulic pressure power to make the ultrasonic wave tool bit contact with the rock all the time, improve the efficiency of cutting non-flat rock with this.
Compared with the prior art, the invention has the following beneficial effects:
the ultrasonic cutter head and the rock are resonated by the ultrasonic auxiliary device, so that gaps and cracks are formed on the rock, the integrity of the rock is damaged, the strength of the rock is reduced, the excavating resistance of the rake teeth is correspondingly reduced, the excavating efficiency is improved, the dredging energy consumption is reduced, and the aim of optimizing the rake head of the trailing suction hopper dredger is finally fulfilled. In addition, when meeting uneven rock, through ultrasonic device's flexible, make ultrasonic wave tool bit and rock contact all the time to this efficiency that improves the cutting uneven rock.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of an ultrasound device of the present invention;
FIG. 4 is a schematic view of an ultrasound generating apparatus of the present invention;
in the figure: 1: rake suction head, 2: tool holder, 3: plunger cylinder, 4: plunger rod, 5: rake tooth screw, 6: rake teeth, 7: big bolt, 8: large nut, 9: ultrasonic apparatus, 10: ultrasonic switch, 11: ultrasonic generator, 9-1: signal cable, 9-2: metal housing, 9-3: retainer ring, 9-4: patch panel, 9-5: conductive post, 9-6: sound absorbing material, 9-7: piezoelectric sheet, 9-8: horn, 9-9: wireless sensor, 9-10: an ultrasonic wave cutter head.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 and 2, a trailing suction hopper dredger drag head based on ultrasonic-assisted rock breaking comprises a trailing suction hopper dredger drag head device and an ultrasonic auxiliary device, wherein an ultrasonic device 9 of the ultrasonic auxiliary device is welded on a trailing suction head 1 of the trailing suction hopper dredger drag head device.
The drag head device of the drag suction dredger comprises a drag suction head 1, a cutter frame 2, a plunger cylinder 3, a plunger rod 4, a rake tooth screw 5, a rake tooth 6, a large bolt 7 and a large nut 8; the harrow suction head 1 is connected with the cutter frame 2 through a plunger cylinder 3, a plunger rod 4, a large bolt 7 and a large nut 8, the harrow teeth 6 are connected on the cutter frame 2 through harrow teeth screws 5, and the harrow head device of the harrow suction dredger can realize the rotation of the cutter frame 2 and the harrow teeth 6 relative to the harrow suction head 1 by controlling hydraulic pressure through an operating system.
As shown in figure 4, the ultrasonic auxiliary device comprises an ultrasonic generator 11, an ultrasonic switch 10 and ultrasonic devices 9 welded on the rake suction head, wherein the ultrasonic generator 11 is connected with the ultrasonic switch 10, the ultrasonic switch 10 is connected with each ultrasonic device 9, and each ultrasonic device 9 comprises a signal cable 9-1, a metal shell 9-2, a check ring 9-3, a wiring board 9-4, a conductive column 9-5, a sound absorption material 9-6, a piezoelectric sheet 9-7, an amplitude transformer 9-8, a wireless sensor 9-9 and an ultrasonic cutter head 9-10. The ultrasonic switch is characterized in that the signal cable 9-1 penetrates through the upper end of the metal shell 9-2 to be connected with the ultrasonic switch 10, the retainer ring 9-3, the wiring board 9-4, the conductive column 9-5 and the piezoelectric sheet 9-7 are all arranged in the metal shell 9-2, the signal cable 9-1 is connected to the wiring board 9-4, the retainer ring 9-3 is arranged above the wiring board 9-4, the conductive column 9-5 is arranged on the wiring board 9-4, the conductive column 9-5 extends downwards to the piezoelectric sheet 9-7 below, the amplitude transformer 9-8 is connected below the piezoelectric sheet 9-7, the ultrasonic tool bit 9-10 is arranged at the lower end of the amplitude transformer 9-8, and the wireless sensor 9-9 is arranged on the rod wall of the amplitude transformer 9-8.
Preferably, the ultrasonic device further comprises a sound absorbing material 9-6 disposed above the piezoelectric sheet 9-7.
The wireless sensors 9-9 in the ultrasonic device 9 scan the rock frequency in real time and feed back the rock frequency to the operating system, and the operating system adjusts the ultrasonic frequency emitted by the ultrasonic generator 11 in real time according to the feedback result so as to keep the rock frequency consistent with the current rock frequency. Therefore, the ultrasonic tool bits 9-10 in the ultrasonic device 9 and the rock are in resonance, so that the rock forms gaps and cracks, the integrity of the rock is damaged, the strength of the rock is reduced, the excavating resistance of the rake teeth is correspondingly reduced, the excavating efficiency is improved, the dredging energy consumption is reduced, and the aim of optimizing the rake head of the trailing suction hopper dredger is finally achieved.
When the non-flat rock is encountered, namely the wireless sensor 9-9 is subjected to impact load of the non-flat rock, the wireless sensor 9-9 feeds back the signal to the operating system, and the operating system realizes the extension and retraction of the ultrasonic device 9 by controlling hydraulic pressure, so that the ultrasonic cutter head 9-10 is always in contact with the rock, and the efficiency of cutting the non-flat rock is improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is to be accorded the broadest interpretation so as to encompass all such modifications and variations.
Claims (2)
1. A trailing suction hopper dredger drag head based on ultrasonic wave assists broken rock, wherein including trailing suction hopper dredger drag head apparatus and several ultrasonic wave auxiliary devices, the said several ultrasonic wave auxiliary devices weld on trailing suction head of the said trailing suction hopper dredger drag head apparatus;
the drag head device of the drag suction dredger comprises a drag suction head, a cutter frame, a plunger cylinder, a plunger rod, a drag tooth screw, a drag tooth, a large bolt and a large nut; the rake suction head is connected with the cutter frame through a plunger cylinder, a plunger rod, a large bolt and a large nut, and the rake teeth are connected to the cutter frame through rake teeth screws; the drag head device of the drag suction dredger controls hydraulic pressure through an operating system to realize the rotation of the cutter frame and the drag teeth relative to the drag suction head;
the ultrasonic auxiliary device comprises an ultrasonic generator, an ultrasonic switch and a plurality of ultrasonic devices welded on the rake suction head, the ultrasonic generator is connected with the ultrasonic switch, the ultrasonic switch is connected with each ultrasonic device, and each ultrasonic device comprises a signal cable, a metal shell, a retainer ring, a wiring board, a conductive column, a sound absorption material, a piezoelectric sheet, an amplitude transformer, a wireless sensor and an ultrasonic tool bit; the ultrasonic switch is connected to the upper end of the signal cable penetrating through the metal shell, the check ring, the wiring board, the conductive column and the piezoelectric sheet are all arranged in the metal shell, the signal cable is connected to the wiring board, the check ring is arranged above the wiring board, the conductive column is arranged on the wiring board, the conductive column extends downwards to the piezoelectric sheet below the conductive column, the amplitude transformer is connected to the lower portion of the piezoelectric sheet, the ultrasonic tool bit is arranged at the lower end of the amplitude transformer, and the wireless sensor is arranged on the rod wall of the amplitude transformer.
2. The drag suction dredger drag head based on ultrasonic assisted rock breaking of claim 1, wherein the ultrasonic device further comprises a sound absorbing material disposed above the piezoelectric patch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911036238.9A CN110761352B (en) | 2019-10-29 | 2019-10-29 | Trailing suction hopper dredger harrow head based on supplementary broken rock of ultrasonic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911036238.9A CN110761352B (en) | 2019-10-29 | 2019-10-29 | Trailing suction hopper dredger harrow head based on supplementary broken rock of ultrasonic wave |
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| Publication Number | Publication Date |
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| CN110761352A CN110761352A (en) | 2020-02-07 |
| CN110761352B true CN110761352B (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911036238.9A Active CN110761352B (en) | 2019-10-29 | 2019-10-29 | Trailing suction hopper dredger harrow head based on supplementary broken rock of ultrasonic wave |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111894058B (en) * | 2020-07-28 | 2024-09-13 | 中交广州航道局有限公司 | Broken rock drag head |
| CN114508137B (en) * | 2022-01-17 | 2023-03-14 | 中港疏浚有限公司 | Quick automatic digging drag head for seabed mud |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200907A (en) * | 2007-12-20 | 2008-06-18 | 上海交通大学 | Harrow-suction type dredging head breaking ground by high-frequency small-amplitude mechanical oscillation |
| KR20100000477A (en) * | 2008-06-25 | 2010-01-06 | 주식회사 코스코 | Remote control underwater dredging apparatus |
| EP2954770A1 (en) * | 2014-06-13 | 2015-12-16 | CNH Industrial Belgium nv | System and method for calibrating alignment of agricultural vehicles |
| CN108316861A (en) * | 2018-01-30 | 2018-07-24 | 中国矿业大学 | A kind of mine ultrasonic wave broken rock equipment |
| CN110318437A (en) * | 2019-07-12 | 2019-10-11 | 河海大学常州校区 | A kind of New Kind of Hob assist type trailing suction hopper dredger drag head |
-
2019
- 2019-10-29 CN CN201911036238.9A patent/CN110761352B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200907A (en) * | 2007-12-20 | 2008-06-18 | 上海交通大学 | Harrow-suction type dredging head breaking ground by high-frequency small-amplitude mechanical oscillation |
| KR20100000477A (en) * | 2008-06-25 | 2010-01-06 | 주식회사 코스코 | Remote control underwater dredging apparatus |
| EP2954770A1 (en) * | 2014-06-13 | 2015-12-16 | CNH Industrial Belgium nv | System and method for calibrating alignment of agricultural vehicles |
| CN108316861A (en) * | 2018-01-30 | 2018-07-24 | 中国矿业大学 | A kind of mine ultrasonic wave broken rock equipment |
| CN110318437A (en) * | 2019-07-12 | 2019-10-11 | 河海大学常州校区 | A kind of New Kind of Hob assist type trailing suction hopper dredger drag head |
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| CN110761352A (en) | 2020-02-07 |
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