CN214832990U - Double-row drag head for drag suction dredger - Google Patents
Double-row drag head for drag suction dredger Download PDFInfo
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- CN214832990U CN214832990U CN202120963093.3U CN202120963093U CN214832990U CN 214832990 U CN214832990 U CN 214832990U CN 202120963093 U CN202120963093 U CN 202120963093U CN 214832990 U CN214832990 U CN 214832990U
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- scraping
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- rake teeth
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Abstract
The patent application relates to the technical field of dredging engineering and discloses a double-row drag head for a trailing suction dredger, which comprises a suction pipe and a movable cover which are hinged with each other, wherein a hydraulic cylinder used for driving the movable cover to rotate is arranged on the suction pipe, the movable cover is communicated with the suction pipe and is provided with a circulation channel used for circulating silt, a rake tooth assembly is fixedly connected to the inlet end of the movable cover, a grid assembly is arranged in the movable cover and comprises a first grid and a second grid which are in sliding fit with each other, the second grid and the first grid are overlapped, an electric push rod used for driving the first grid and the second grid to slide with each other is arranged in the movable cover, a first gap is formed on the first grid, a plurality of second gaps are formed on the second grid, a plurality of first scraping parts are formed on the first grid, a plurality of second scraping parts are formed on the second grid, the first scraping parts are arranged in one of the second gaps, the second scraping part is arranged in one of the first gaps, and has the characteristic of preventing blockage.
Description
Technical Field
The utility model relates to a dredging engineering technical field especially relates to a double rake head for trailing suction dredger.
Background
The drag head is used for a drag suction dredger, is the foremost equipment of a pipeline for sucking mud or silt of the drag suction dredger, and is named after the principle and the shape similar to a rake. The drag head generally comprises a suction pipe and a movable cover which are hinged with each other, a hydraulic cylinder for driving the movable cover and the suction pipe to rotate relatively is arranged on the suction pipe, a plurality of dredging drag teeth for dredging sludge are arranged on the movable cover, and a grid is arranged in the movable cover. However, gaps among the grids are small, and the clay with high viscosity is easily adhered to the grids to cause the blockage of the grids, so that the dredging efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a formula is inhaled to harrow double harrow head for dredge, its characteristics that have the jam-proof.
In order to achieve the above purpose, the basic scheme of the utility model is as follows:
the utility model provides a double drag head for trailing suction dredger, includes mutual articulated straw and activity cover, be provided with on the straw and be used for driving activity cover pivoted pneumatic cylinder, the activity cover is linked together and is formed with the circulation passageway that is used for circulating silt with the straw, fixedly connected with rake teeth subassembly is served in the activity cover import, be provided with the grid subassembly in the activity cover, the grid subassembly includes first grid and the second grid of mutual sliding fit, second grid and first grid overlap the setting, be provided with in the activity cover and be used for driving first grid and the mutual gliding electric putter of second grid,
be formed with first clearance on the first grid, be formed with a plurality of second clearances on the second grid, first clearance and second clearance all are used for holding silt and pass through, be formed with a plurality of first material portions of scraping on the first grid, be formed with a plurality of seconds on the second grid and scrape material portion, each first material portion of scraping is arranged in one of them second clearance respectively in, first material portion of scraping is used for scraping adnexed clay in the second clearance, each the second is scraped material portion and is arranged in one of them first clearance respectively in, the second is scraped material portion and is used for scraping adnexed clay in the first clearance.
Further, the first scraping portion comprises a plurality of first scraping pieces, the second scraping portion comprises a plurality of second scraping pieces, the first scraping pieces and the second scraping pieces are parallel to each other, and the first scraping pieces and the second scraping pieces are distributed in a staggered mode.
Further, the first scraper blade and the second scraper blade are provided with streamline shapes, so that the first scraper blade and the second scraper blade are subjected to low resistance, the possibility that the first scraper blade and the second scraper blade are broken is reduced, and the service lives of the first grating and the second grating are prolonged.
Furthermore, all be provided with the vibrating motor who is used for driving first grid and the vibration of second grid on the first grid, fixedly connected with damping spring between first grid and the movable cover, electric putter and movable cover fixed connection, electric putter's output shaft is on a parallel with the slip direction of second grid, fixedly connected with connecting block on electric putter's the output shaft, connecting block and second grid fixed connection can reduce the adhesion of clay on first grid and second grid through vibrating motor to first grid and second grid can clear away partial clay at the in-process of vibration.
Further, the rake teeth assembly comprises a first fixing rod, a second fixing rod, a plurality of first rake teeth and a plurality of second rake teeth, the first rake teeth are fixedly connected to the first fixing rod, the first fixing rod is fixedly connected to one side, away from the suction pipe, of the inlet end of the movable cover, the second rake teeth are fixedly connected to the second fixing rod, the second fixing rod is fixedly connected to the inlet end of the movable cover, the first rake teeth and the second rake teeth are exposed out of the movable cover, dredging efficiency can be increased through the first rake teeth and the second rake teeth, gaps are formed between sludge at the corresponding positions of the opening of the movable cover and sludge at other positions, and accordingly sludge can be sucked conveniently.
Further, be provided with first transfer line and second transfer line in the movable cover respectively, a plurality of first nozzles of fixedly connected with on the first transfer line, be provided with a plurality of second nozzles on the second transfer line, place in the movable cover in first nozzle and the second nozzle are all placed, fixedly connected with pipette on the straw, the pipette is used for carrying liquid to in first transfer line and the second transfer line, and first nozzle and second nozzle strike the silt of movable cover mouth position department to make the separation of this part silt.
Further, the angle between the axis of the first nozzle and the axis of the second nozzle is set to 45 °.
Compared with the prior art, the scheme has the beneficial effects that:
in the process of sucking the sludge, the grating assembly can divide large clay into a plurality of small blocks to improve dredging efficiency, and the first material scraping part and the second material scraping part can scrape the sludge on the first grating and the second grating to avoid the first gap and the second gap from being blocked by the clay; the electric push rod is simple in structure and convenient to control the grating assembly, so that the first grating and the second grating slide relatively, and the first scraping sheet and the second scraping sheet are driven to approach or keep away from each other.
Drawings
FIG. 1 is a schematic view of the overall structure of the embodiment;
FIG. 2 is a schematic view of the overall structure of the movable hood;
fig. 3 is a partial sectional view of the movable hood.
Reference numerals in the drawings of the specification include:
1. a straw; 11. a hydraulic cylinder; 2. a movable cover; 21. an electric push rod; 211. connecting blocks; 3. a pipette; 31. a liquid suction branch pipe; 41. a first grid; 411. a first scraping sheet; 412. a damping spring; 413. a vibration motor; 42. a second grid; 421. a second doctoring sheet; 51. a first rake tine; 511. a first fixing lever; 52. a second rake tine; 521. a second fixing bar; 61. a first nozzle; 611. a first infusion tube; 62. a second nozzle; 621. a second infusion tube.
Detailed Description
The invention will be described in further detail by means of specific embodiments with reference to the accompanying drawings:
example (b):
a double-row drag head for a trailing suction dredger comprises a suction pipe 1 and a movable cover 2 which are hinged with each other, as shown in figure 1, a hydraulic cylinder 11 for driving the movable cover 2 to rotate is arranged on the suction pipe 1, the movable cover 2 is communicated with the suction pipe 1 and is provided with a circulation channel for circulating silt, and a drag tooth assembly is fixedly connected to the inlet end of the movable cover 2.
As shown in fig. 2, a grid assembly is arranged in the movable cover 2, the grid assembly includes a first grid 41 and a second grid 42 which are in sliding fit with each other, a sliding block (not shown in the figure) is arranged on the first grid 41, a sliding groove (not shown in the figure) is formed in the second grid 42, the sliding groove is in sliding connection with the sliding block, the second grid 42 and the first grid 41 are arranged in an overlapping manner, an electric push rod 21 for driving the first grid 41 and the second grid 42 to slide along the length direction of the sliding groove is arranged in the movable cover 2, the electric push rod 21 is fixedly connected with the movable cover 2, an output shaft of the electric push rod 21 is parallel to the length direction of the sliding groove, a connecting block 211 is fixedly connected to the output shaft of the electric push rod 21, and the connecting block 211 is fixedly connected with the second grid 42. Be formed with first clearance on the first grid 41, be formed with a plurality of second clearances on the second grid 42, first clearance and second clearance all are used for holding silt and pass through, be formed with a plurality of first material portions of scraping on the first grid 41, be formed with a plurality of second material portions of scraping on the second grid 42, place in one of them second clearance respectively in each first material portion of scraping, first material portion of scraping is used for scraping the adnexed clay in the second clearance, place in one of them first clearance respectively in each second material portion of scraping, the second material portion of scraping is used for scraping the adnexed clay in the first clearance.
As shown in fig. 2 and fig. 3, the first scraping portion includes a plurality of first scraping sheets 411, the second scraping portion includes a plurality of second scraping sheets 421, each of the first scraping sheets 411 and the second scraping sheets 421 are parallel to each other, and the first scraping sheets 411 and the second scraping sheets 421 are distributed in a staggered manner. The first blade piece 411 and the second blade piece 421 are shaped in a streamline form so that the first blade piece 411 and the second blade piece 421 receive little resistance, thereby reducing the possibility of the first blade piece 411 and the second blade piece 421 breaking, and extending the service life of the first grid 41 and the second grid 42.
As shown in fig. 3, the first grill 41 is provided with a vibration motor 413 for driving the first grill 41 and the second grill 42 to vibrate, a shock absorbing spring 412 is fixedly connected between the first grill 41 and the movable hood 2, adhesion of clay to the first grill 41 and the second grill 42 can be reduced by the vibration motor 413, and the first grill 41 and the second grill 42 can remove a part of the clay during vibration. The rake teeth assembly comprises a first fixing rod 511, a second fixing rod 521, a plurality of first rake teeth 51 and a plurality of second rake teeth 52, wherein the first rake teeth 51 are fixedly connected to the first fixing rod 511, the first fixing rod 511 is fixedly connected to one side of the inlet end of the movable cover 2, which is far away from the suction pipe 1, the second rake teeth 52 are fixedly connected to the second fixing rod 521, the second fixing rod 521 is fixedly connected to the inlet end of the movable cover 2, the first rake teeth 51 and the second rake teeth 52 are exposed out of the movable cover 2, the first rake teeth 51 and the second rake teeth 52 can increase dredging efficiency, and gaps are formed between sludge at corresponding positions of the cover opening of the movable cover 2 and sludge at other positions, so that sludge can be sucked conveniently.
A first infusion tube 611 and a second infusion tube 621 are arranged in the movable cover 2 respectively, a plurality of first nozzles 61 are fixedly connected to the first infusion tube 611, a plurality of second nozzles 62 are arranged on the second infusion tube 621, the first nozzles 61 and the second nozzles 62 are arranged in the movable cover 2, a liquid suction tube 3 is fixedly connected to the suction tube 1, two liquid suction branch tubes 31 are fixedly connected to the liquid outlet end of the liquid suction tube 3, the two liquid suction branch tubes 31 penetrate through the movable cover 2 respectively, one liquid suction branch tube 31 is communicated with the first infusion tube 611, the other liquid suction branch tube 31 is communicated with the second liquid suction tube 3, and the first nozzles 61 and the second nozzles 62 impact sludge at the opening position of the movable cover 2, so that the sludge is separated. The angle between the axis of the first nozzle 61 and the axis of the second nozzle 62 is set at 45 °.
The specific implementation mode of the scheme is as follows:
when the drag head is used for sucking mud, the hydraulic cylinder 11 is started to enable the movable cover 2 and the suction pipe 1 to rotate relatively, the first drag tooth 51 and the second drag tooth 52 are inserted into the mud, seawater enters the first liquid conveying pipe 611 and the second liquid conveying pipe 621 through the suction pipe 3 and the liquid suction branch pipe 31 respectively, the seawater is sprayed to the mud from the first nozzle 61 and the second nozzle 62 to impact the mud, and meanwhile the suction pipe 1 sucks the mud, so that the mud passes through the movable cover 2 and enters the dredger through the suction pipe 1. The vibration motor 413 is started in the process of extracting the sludge, and the vibration motor 413 drives the first grid 41 and the second grid 42 to vibrate up and down, so that the adhesion of the clay on the grid assembly is reduced. If the first grid 41 and the second grid 42 are blocked, the electric push rod 21 is started, the electric push rod 21 pushes the sliding chute on the second grid 42 and the sliding block of the first grid 41 to slide mutually, so that each first scraping sheet 411 slides in the corresponding second gap, and each second scraping sheet 421 slides in the corresponding first gap, and the clay in the first gap and the second gap is scraped.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. The utility model provides a double rake head for trailing suction dredger, includes mutual articulated straw (1) and activity cover (2), be provided with on straw (1) and be used for driving activity cover (2) pivoted pneumatic cylinder (11), activity cover (2) are linked together and are formed with the circulation passageway that is used for circulating silt with straw (1), activity cover (2) import end fixedly connected with rake teeth subassembly, its characterized in that: a grid assembly is arranged in the movable cover (2), the grid assembly comprises a first grid (41) and a second grid (42) which are in sliding fit with each other, the second grid (42) and the first grid (41) are overlapped, an electric push rod (21) for driving the first grid (41) and the second grid (42) to slide with each other is arranged in the movable cover (2),
be formed with first clearance on first grid (41), be formed with a plurality of second clearances on second grid (42), first clearance and second clearance all are used for holding silt and pass through, be formed with a plurality of first material portions of scraping on first grid (41), be formed with a plurality of seconds on second grid (42) and scrape material portion, each first material portion of scraping is placed in one of them second clearance respectively in, first material portion of scraping is used for scraping the adnexed clay in the second clearance, each the second is scraped in the material portion and is placed in one of them first clearance respectively, the second is scraped material portion and is used for scraping the adnexed clay in the first clearance.
2. The double row drag head for a trailing suction hopper dredger according to claim 1, wherein: the first scraping portion comprises a plurality of first scraping pieces (411), the second scraping portion comprises a plurality of second scraping pieces (421), the first scraping pieces (411) and the second scraping pieces (421) are parallel to each other, and the first scraping pieces (411) and the second scraping pieces (421) are distributed in a staggered mode.
3. The double row drag head for a trailing suction hopper dredger according to claim 2, wherein: the first blade sheet (411) and the second blade sheet (421) are streamlined in shape.
4. The double row drag head for a trailing suction hopper dredger according to claim 1, wherein: all be provided with vibrating motor (413) that is used for driving first grid (41) and second grid (42) vibration on first grid (41), fixedly connected with damping spring (412) between first grid (41) and movable cover (2), electric putter (21) and movable cover (2) fixed connection, the output shaft of electric putter (21) is on a parallel with the slip direction of second grid (42), fixedly connected with connecting block (211) on the output shaft of electric putter (21), connecting block (211) and second grid (42) fixed connection.
5. The double row drag head for a trailing suction hopper dredger according to claim 1, wherein: the rake teeth assembly comprises a first fixing rod (511), a second fixing rod (521), a plurality of first rake teeth (51) and a plurality of second rake teeth (52), wherein the first rake teeth (51) are fixedly connected to the first fixing rod (511), the first fixing rod (511) is fixedly connected to one side, away from the suction pipe (1), of the inlet end of the movable cover (2), the second rake teeth (52) are fixedly connected to the second fixing rod (521), the second fixing rod (521) is fixedly connected to the inlet end of the movable cover (2), and the first rake teeth (51) and the second rake teeth (52) are exposed out of the movable cover (2).
6. The double row drag head for a trailing suction hopper dredger according to claim 5, wherein: be provided with first transfer line (611) and second transfer line (621) in activity cover (2) respectively, fixedly connected with a plurality of first nozzle (61) on first transfer line (611), be provided with a plurality of second nozzle (62) on second transfer line (621), place in activity cover (2) in first nozzle (61) and second nozzle (62) are all, fixedly connected with pipette (3) on straw (1), pipette (3) are used for carrying liquid in to first transfer line (611) and second transfer line (621).
7. The double row drag head for a trailing suction hopper dredger according to claim 6, wherein: the angle between the axis of the first nozzle (61) and the axis of the second nozzle (62) is set at 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120963093.3U CN214832990U (en) | 2021-05-07 | 2021-05-07 | Double-row drag head for drag suction dredger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120963093.3U CN214832990U (en) | 2021-05-07 | 2021-05-07 | Double-row drag head for drag suction dredger |
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| Publication Number | Publication Date |
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| CN214832990U true CN214832990U (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120963093.3U Active CN214832990U (en) | 2021-05-07 | 2021-05-07 | Double-row drag head for drag suction dredger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115853051A (en) * | 2022-10-11 | 2023-03-28 | 中交广州航道局有限公司 | Anti-blocking mud suction rake suction ship |
-
2021
- 2021-05-07 CN CN202120963093.3U patent/CN214832990U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115853051A (en) * | 2022-10-11 | 2023-03-28 | 中交广州航道局有限公司 | Anti-blocking mud suction rake suction ship |
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