CN212078054U - Suction port structure of cutter suction dredger with quick-release grating - Google Patents
Suction port structure of cutter suction dredger with quick-release grating Download PDFInfo
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- CN212078054U CN212078054U CN202020249426.1U CN202020249426U CN212078054U CN 212078054 U CN212078054 U CN 212078054U CN 202020249426 U CN202020249426 U CN 202020249426U CN 212078054 U CN212078054 U CN 212078054U
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Abstract
The utility model relates to a cutter suction dredger suction port structure with quick detach grid. The cutter-suction bridge comprises a cutter-suction bridge with a necking at the front end, wherein a bearing seat is arranged at the front end of the necking, and a cutter shaft is arranged in the cutter-suction bridge; the sludge discharge pipeline is also included, and a sludge suction port at the front end of the sludge discharge pipeline extends to the middle part below the necking; a plurality of upper notches are formed in the upper lip edge of the sludge suction port, a plurality of lower notches are formed in the lower lip edge of the sludge suction port, and each upper notch and each lower notch are vertically aligned; the upper part of each grid strip is positioned in each upper groove opening, and the lower part of each grid strip is positioned in each lower groove opening; the cross sections of each grid strip, each upper notch and each lower notch are isosceles trapezoids, the wide edge part of each grid strip is positioned at the outer side, the narrow edge part is positioned at the inner side, and the upper part and the lower part of each grid strip are fixedly connected with the upper lip edge and the lower lip edge respectively by adopting fixed long screws. The utility model discloses simple structure, prevent stifled mouthful effectual, be convenient for clearance behind the stifled mouth.
Description
Technical Field
The utility model belongs to the technical field of the facility of dredging, especially, relate to a cutter suction dredger suction port structure with quick detach grid.
Background
In the working process of the cutter suction dredger, the suction opening is easy to be blocked by stones and the like, which is one of the key problems in the construction process, namely, in the cutter suction dredger, the massive stones are blocked in the suction opening, so that the machine must be stopped for treatment, the working time is delayed, and the construction cost is increased.
The traditional method for solving the problem of blockage is to arrange a grating in a mud suction port of the original cutter suction dredger, wherein the grating is made of steel plates and generally comprises a plurality of vertical bars, the vertical bars divide the whole mud suction port into a plurality of vertical bar ports, and stones with the grain diameters larger than the transverse width of the bar ports are blocked outside the grating, so that the stones are prevented from entering a mud pump through the mud suction port, and the impeller of the mud pump is prevented from being damaged or causing serious abrasion of a pipeline.
However, when a large amount of stones, clay, and net-like foreign materials are contained in the construction area after the metal plate grid is provided, the suction port may be blocked, that is, a small stone is squeezed in the bar openings of the grid. Since the grid plates are made of steel plates with equal thickness, the stones extruded between two adjacent grid plates are very difficult to clean, and cannot be cleaned well by knocking outwards or knocking inwards. In general, the blockage accident causes the dredger to stop for maintenance, and the construction period is influenced. Therefore, it is necessary to optimally design the suction port structure of the dredger.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the technical problem that exists among the known art and provide a simple structure, prevent that the cutter that has quick detach grid of clearance behind the choking is effectual, the choking is convenient for inhale dredger suction port structure.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a suction port structure of a cutter suction dredger with a quick-release grid comprises a cutter suction bridge with a necking at the front end, wherein a bearing seat is installed at the front end of the necking; the sludge discharge pipeline is fixedly arranged below the cutter-suction bridge, and a sludge suction port at the front end of the sludge discharge pipeline extends to the middle part below the necking; a plurality of upper notches are formed in the upper lip edge of the sludge suction port, a plurality of lower notches are formed in the lower lip edge of the sludge suction port, and each upper notch and each lower notch are vertically aligned; the upper part of each grid strip is positioned in each upper groove opening, and the lower part of each grid strip is positioned in each lower groove opening; the cross sections of each grid strip, each upper notch and each lower notch are isosceles trapezoids, the wide edge part of each grid strip is positioned at the outer side, the narrow edge part is positioned at the inner side, and the upper part and the lower part of each grid strip are fixedly connected with the upper lip edge and the lower lip edge respectively by adopting fixed long screws.
The utility model has the advantages that: the utility model provides a cutter suction dredger suction port structure that has quick detach grid that structural design is simple reasonable compares with current mud suction mouth structure, respectively sets up a plurality of upper portion notches and lower part notch through on the upper portion lip edge of mud suction mouth and the lower part lip edge among this technical scheme to through the fixed grid bar of fixed long screw installation in each upper portion notch of organizing, lower part notch, for mud suction mouth configuration can conveniently carry out the grid structure of dismouting, be convenient for maintain the change to the grid bar. When a blockage accident occurs, the sludge suction port can be cleaned in a manner of detaching the grid bars. The cross sections of the upper notches, the lower notches and the grid strips are isosceles trapezoids, so that the upper part and the lower part of each grid strip are combined with the upper lip edge and the lower lip edge more tightly, and the grid strips are effectively prevented from transversely separating from the mud suction port under the action of external force. Because the cross-section of each grid strip is trapezoidal and broadside is located the outside, the narrow side is located the inboard, consequently can inwards remove and get into row mud pipeline along more and more wide passageway from the stone that gets into between the broadside in the outside, consequently more can prevent the stone choking. On the other hand, the opposite surfaces between two adjacent grid bars are inclined surfaces, so that the stones are not easy to accumulate and extrude between the inclined surfaces, and therefore, the blocking accidents are not easy to occur.
Preferably: grooves are formed in the two sides of the upper portion and the two sides of the lower portion of each grid strip, threaded holes are formed in the upper lip edge, the two sides of each upper portion notch, the lower lip edge and the two sides of each lower portion notch, and each fixing long screw penetrates through each group of threaded holes and the corresponding groove respectively and is screwed and fixed.
Preferably: each grid strip is manufactured by milling a steel plate, the width of a narrow side of each grid strip is 3cm to 5cm, the width of a wide side of each grid strip is 6cm to 8cm, and the thickness of each grid strip is 5cm to 8 cm; the distance between the central lines of two adjacent grid bars is equal and the distance is 10cm to 15 cm.
Preferably: and the surface of each grid strip is provided with a tungsten carbide coating.
Drawings
Fig. 1 is a schematic side view of the present invention;
fig. 2 is a schematic view of the end structure of the present invention;
FIG. 3 is a schematic structural view of a portion of the suction opening of FIG. 2;
FIG. 4 is a schematic view of the cross-sectional structure A-A of FIG. 3;
fig. 5 is an enlarged schematic view of a portion B of fig. 3.
In the figure: 1. a cutter suction bridge; 2. necking; 3. a bearing seat; 4. a reamer shaft; 5. a sludge suction port; 5-1, an upper lip; 5-2, lower lip; 5-3, a threaded hole; 6. a sludge discharge pipeline; 7. grid bars; 7-1, a groove; 8. fixing the long screw; 9. an upper notch; 10. a lower notch.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail:
referring to fig. 1 and 2, the suction port structure of the cutter suction dredger with the quick-release grille of the present invention includes a cutter suction bridge 1 having a front end provided with a reducing port 2, a bearing seat 3 mounted at the front end of the reducing port 2, a reamer shaft 4 having a rear end connected to a driving mechanism and a front portion located in the bearing seat 3 and arranged in the cutter suction bridge 1, and a reamer mounted at the front end of the reamer shaft 4. Under the driving action of the driving mechanism, the reamer rotates to carry out dredging construction on the water bottom.
Still including arranging mud pipeline 6, arrange mud pipeline 6 fixed mounting in the below of cutter suction bridge 1, the mud mouth 5 of inhaling of its front end extends to the middle part of throat 2 below. The stones, clay, gravels and the like obtained by the dredging construction of the reamer enter the sludge discharge pipeline 6 from the sludge suction port 5 and are conveyed to the shore along the sludge discharge pipeline 6.
A plurality of upper notches 9 are arranged on the upper lip edge 5-1 of the sludge suction port 5, a plurality of lower notches 10 are arranged on the lower lip edge 5-2 of the sludge suction port 5, and each upper notch 9 and each lower notch 10 are vertically aligned. Each of the upper notches 9 and each of the lower notches 10 is formed on the upper lip 5-1 and the lower lip 5-2 of the suction port 5 by using a wire cutting device such as a wire saw.
And a plurality of grid bars 7, wherein the upper part of each grid bar 7 is positioned in each upper notch 9, and the lower part of each grid bar 7 is positioned in each lower notch 10.
The cross sections of each grid strip 7, each upper notch 9 and each lower notch 10 are isosceles trapezoids, the wide edge part of each grid strip 7 is positioned at the outer side, the narrow edge part is positioned at the inner side, and the upper part and the lower part of each grid strip 7 are fixedly connected with the upper lip 5-1 and the lower lip 5-10 by adopting a fixed long screw 8 respectively. The cross-sectional shape of grid strip 7 is unanimous with the cross-sectional shape of upper portion notch 9, lower part notch 10, and during the installation, grid strip 7 from top to bottom penetrates in lower part notch 10 from upper portion notch 9, perhaps penetrates in upper portion notch 9 from lower part notch 10 to supreme.
The grid bars 7 are fixed with the upper lip 5-1 and the lower lip 5-2 in the following way: grooves 7-1 are respectively arranged on two sides of the upper part and two sides of the lower part of each grid strip 7, threaded holes 5-3 are respectively arranged on the upper lip edge 5-1, two sides of each upper notch 9, the lower lip edge 5-2 and two sides of each lower notch 10, and each fixing long screw 8 is respectively arranged in each group of threaded holes 5-3 and the corresponding groove 7-1 in a penetrating manner and is screwed and fixed. Therefore, the upper part of each grid 7 is fixedly connected with the upper lip 5-1 by using the left and right fixing long screws 8, and the lower part of each grid 7 is fixedly connected with the lower lip 5-2 by using the left and right fixing long screws 8.
In the embodiment, each grid bar 7 is manufactured by milling a steel plate, the width of the narrow side of each grid bar 7 is 3cm to 5cm, preferably 4cm, the width of the wide side of each grid bar 7 is 6cm to 8cm, preferably 7cm, and the thickness of each grid bar 7 is 5cm to 8cm, preferably 7 cm. The distance between the center lines of two adjacent grid bars 7 is equal and the distance is 10cm to 15cm, preferably 12 cm. The center line of the grid bar 7 is an intersection line of two planes, namely, a plane defined by the upper left edge line and the lower right edge line and a plane defined by the upper right edge line and the lower left edge line when viewed from the cross section.
In this embodiment, in order to ensure the wear-resistant characteristics of each grid bar 7, a tungsten carbide coating is provided on the surface of each grid bar 7. Milling two sides of a steel plate with proper thickness on a machining center to form an isosceles trapezoid cross section, polishing proper positions of the two sides of the upper part and proper positions of the two sides of the lower part to obtain a groove 7-1, and spraying on the surface to form a tungsten carbide wear-resistant coating.
The utility model discloses a forming method:
processing to obtain a plurality of grid bars 7 for later use; machining and manufacturing each upper notch 9 and each lower notch 10 on the upper lip 5-1 and the lower lip 5-2 of the sludge suction port 5 by adopting wire cutting equipment (such as a wire saw and the like); drilling and tapping holes 5-3 from outside to inside on the upper lip edge 5-1 and the positions on the two sides of each upper notch 9 by adopting drilling equipment along the extending direction of the upper lip edge 5-1 and the lower lip edge 5-2 to form threaded holes 5-3, penetrating each grid strip 7 into each group of upper notch 9 and lower notch 10 from top to bottom, screwing a fixed long screw 8 into the two sides of the upper part of each grid strip 7 (the grooves 7-1 on the two sides of the upper part are respectively aligned with the threaded holes 5-3 on the two sides), and screwing a fixed long screw 8 into the two sides of the lower part of each grid strip 7 (the grooves 7-1 on the two sides of the lower part are respectively aligned with the threaded holes 5-3 on the two sides);
it is to be noted that, since both the upper lip 5-1 and the lower lip 5-2 of the suction opening 5 are arc-shaped, the positions of the grooves 7-1 on each grid bar 7 and the positions of the upper notches 9 on the upper lip 5-1 and the lower notches 10 on the lower lip 5-2 are slightly different, and thus each machined grid bar 7 is different in the present embodiment; the grid bars 7 in the figure are seven, and are numbered from left to right as 1 to 7, the seven grid bars 7 are sequentially installed from left to right during installation (when each grid bar 7 is installed, two grooves 7-1 on the upper portion and two grooves 7-1 on the lower portion are respectively aligned with threaded holes 5-3 on two sides of the upper portion and threaded holes 5-3 on two sides of the lower portion), and each grid bar 7 is fixed by screwing in each fixing long screw 8.
The utility model discloses an operation process:
after the grid bars 7 are installed, the reamer is installed on the reamer shaft 4, and the reamer is sent to the water bottom for suction dredging construction; the dug soil, stone and the like are mixed with water and enter a mud discharge pipeline 6 through a mud suction port 5; because the space between two adjacent grid bars 7 is in the shape of a bell mouth facing the inside, stones which can enter from the gap between the wide sides at the outer sides of the two grid bars 7 can also continuously move inwards in the space of the bell mouth to enter the mud discharge pipeline 6, and the space in the shape of the bell mouth also prevents the stones from being extruded and staying between the grid bars 7; under the special circumstances, when the stone block card between two adjacent grid 7, unclamp the upper portion of two grid 7 of stone both sides, eight fixed long screws 8 of lower part altogether, take out these two grid 7 from upper portion or lower part (can assist when taking out when having the difficulty with instruments such as drill rod, hammer), can release the stone, the clearance operation is very convenient, accomplishes the original position of installing two grid 7 on mud suction opening 5 again after the clearance.
Claims (4)
1. A suction port structure of a cutter suction dredger with a quick-release grid comprises a cutter suction bridge (1) with a reducing port (2) at the front end, wherein a bearing seat (3) is installed at the front end of the reducing port (2), a cutter shaft (4) is arranged in the cutter suction bridge (1), the rear end of the cutter shaft is connected to a driving mechanism, the front part of the cutter shaft is located in the bearing seat (3), and the cutter is installed at the front end of the cutter shaft (4); the sludge discharge pipeline (6) is fixedly arranged below the cutter suction bridge (1), and a sludge suction port (5) at the front end of the sludge discharge pipeline extends to the middle part below the necking (2); the method is characterized in that: a plurality of upper notches (9) are arranged on the upper lip edge (5-1) of the sludge suction port (5), a plurality of lower notches (10) are arranged on the lower lip edge (5-2) of the sludge suction port (5), and each upper notch (9) and each lower notch (10) are vertically aligned; the grid structure is characterized by also comprising a plurality of grid bars (7), wherein the upper part of each grid bar (7) is positioned in each upper notch (9), and the lower part of each grid bar is positioned in each lower notch (10); the cross sections of each grid strip (7), each upper notch (9) and each lower notch (10) are isosceles trapezoids, the wide edge part of each grid strip (7) is positioned at the outer side, the narrow edge part is positioned at the inner side, and the upper part and the lower part of each grid strip (7) are fixedly connected with the upper lip edge (5-1) and the lower lip edge (5-2) respectively by adopting a long fixing screw (8).
2. The suction port structure of a cutter suction dredger with a quick release grid as claimed in claim 1, wherein: grooves (7-1) are respectively arranged on two sides of the upper part and two sides of the lower part of each grid strip (7), threaded holes (5-3) are respectively arranged on the upper lip edge (5-1), two sides of each upper notch (9), two sides of the lower lip edge (5-2) and two sides of each lower notch (10), and each fixing long screw (8) is respectively arranged in each group of threaded holes (5-3) and the corresponding groove (7-1) in a penetrating manner and is screwed and fixed.
3. The suction port structure of a cutter suction dredger with a quick release grid as claimed in claim 1, wherein: each grid bar (7) is manufactured by milling a steel plate, the width of the narrow side of each grid bar (7) is 3cm to 5cm, the width of the wide side of each grid bar is 6cm to 8cm, and the thickness of each grid bar (7) is 5cm to 8 cm; the distance between the central lines of two adjacent grid bars (7) is equal and the distance is 10cm to 15 cm.
4. The suction port structure of a cutter suction dredger with a quick release grid as claimed in claim 1, wherein: the surface of each grid bar (7) is provided with a tungsten carbide coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249426.1U CN212078054U (en) | 2020-03-04 | 2020-03-04 | Suction port structure of cutter suction dredger with quick-release grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249426.1U CN212078054U (en) | 2020-03-04 | 2020-03-04 | Suction port structure of cutter suction dredger with quick-release grating |
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| Publication Number | Publication Date |
|---|---|
| CN212078054U true CN212078054U (en) | 2020-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020249426.1U Active CN212078054U (en) | 2020-03-04 | 2020-03-04 | Suction port structure of cutter suction dredger with quick-release grating |
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| Country | Link |
|---|---|
| CN (1) | CN212078054U (en) |
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- 2020-03-04 CN CN202020249426.1U patent/CN212078054U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 346, Chentang technology incubator, 17 Yujiang Road, Hexi District, Tianjin, 300221 Patentee after: CCCC (Tianjin) Dredging Engineering Co.,Ltd. Address before: Tianhang building, No.1, Tanggu Central Road, Binhai New Area, Tianjin 300450 Patentee before: CCCC-TDC BINHAI ENVIRONMENTAL CHANNEL DREDGING Co.,Ltd. |
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| CP03 | Change of name, title or address |