CN115430942B - Manufacturing process of reamer Liang Xiguan end of dredger - Google Patents
Manufacturing process of reamer Liang Xiguan end of dredger Download PDFInfo
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- CN115430942B CN115430942B CN202211203081.6A CN202211203081A CN115430942B CN 115430942 B CN115430942 B CN 115430942B CN 202211203081 A CN202211203081 A CN 202211203081A CN 115430942 B CN115430942 B CN 115430942B
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- plate
- welding
- suction pipe
- reamer
- dredger
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 230000000903 blocking effect Effects 0.000 claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000003466 welding Methods 0.000 claims description 64
- 238000000034 method Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 12
- 230000004888 barrier function Effects 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 3
- 230000008439 repair process Effects 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a manufacturing process of a reamer Liang Xiguan end of a dredger, which provides a blocking piece and a fixing plate, wherein the fixing plate is arranged close to the stern of a ship body, the blocking piece is arranged far away from the stern of the ship body, and when a reamer beam works, the blocking piece can block navigation water from contacting with one side of the fixing plate away from the stern of the ship body, and the concrete steps are as follows: the blocking piece is welded between the shaft sleeve and the suction pipe, and then the upper end and the lower end of the fixing plate are respectively welded with the shaft sleeve and the suction pipe. The blocking piece is arranged on one side of the fixing plate, which is away from the stern of the ship body, and the blocking piece is used for blocking the navigation water from contacting with one side of the fixing plate, which is away from the stern of the ship body, so that the contact area between the fixing plate and the navigation water is reduced, the corrosion speed of the navigation water to the fixing plate is effectively slowed down, the service life of the fixing plate is prolonged, frequent repair of the fixing plate is avoided, and the repair cost is reduced.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a manufacturing process of a reamer Liang Xiguan end of a dredger.
Background
The dredger is a ship for dredging water channels and river sludge so that other ships can smoothly pass through, and the cutter suction dredger is a common dredger.
The cutter suction dredger comprises a cutter suction mechanism arranged at the stern of the ship body, the cutter suction mechanism comprises a reamer beam and a reamer, the reamer beam comprises a shaft sleeve and a flat-mouth suction pipe, the shaft sleeve is arranged above the suction pipe at intervals, the reamer is arranged in the shaft sleeve, the suction pipe is arranged close to the stern of the ship body, and the suction pipe is connected with a pump body for sucking sludge.
In the installation process, a gap is reserved between the shaft sleeve and the suction pipe, a fixing plate is required to be firmly welded at the gap, and the position between the shaft sleeve and the suction pipe is fixed through the fixing plate. Because the size of the shaft sleeve and the suction pipe is larger, the gap between the shaft sleeve and the suction pipe is a long and narrow space, and the side of the fixing plate, which is close to the bow of the ship body, cannot be welded, and the side of the fixing plate, which is close to the stern of the ship body, is welded and fixed with the shaft sleeve and the suction pipe. The area between the shaft sleeve and the suction pipe is often contacted with seawater or fresh water when the cutter suction mechanism works, and the welding position of the fixing plate is extremely easy to be corroded by the seawater or the fresh water because the fixing plate is only welded with the suction pipe at one side of the shaft sleeve close to the stern of the ship body, so that the fixing plate is invalid, and the fixing plate is frequently repaired. Because the gap between the shaft sleeve and the suction pipe is long and narrow, the welding of the fixing plate is inconvenient, and the frequent repair of the fixing plate takes a lot of time and has high repair cost.
Disclosure of Invention
The invention aims at: a process for manufacturing the reamer Liang Xiguan end of a dredger is provided which extends the life of the fixing plate between the sleeve and the suction tube.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a manufacturing process of reamer Liang Xiguan end of dredger, provides barrier and fixed plate, the fixed plate is close to hull stern setting, the barrier is kept away from hull stern setting, the reamer roof beam during operation, the barrier can block navigation water with the fixed plate deviates from one side contact of hull stern, the concrete step is: the blocking piece is welded between the shaft sleeve and the suction pipe, and then the upper end and the lower end of the fixing plate are respectively welded with the shaft sleeve and the suction pipe.
As a preferred technical solution of the manufacturing process of the reamer Liang Xiguan end of the dredger, the blocking member includes a top plate, a baffle plate and a bottom plate, and the specific steps of welding the blocking member between the sleeve and the suction pipe are as follows: the upper end and the lower end of the baffle are welded and fixed with the top plate and the bottom plate respectively.
As a preferable technical scheme of the manufacturing process of the reamer Liang Xiguan end of the dredger, the method comprises the following steps:
step S10, determining a gap distribution area between the shaft sleeve and the suction pipe according to a drawing of the reamer beam to obtain a gap pattern;
step S20, designing the top plate and the bottom plate according to the gap pattern;
step S30, welding the top plate on the shaft sleeve, welding the bottom plate on the suction pipe, and then assembling the shaft sleeve and the suction pipe, so that the shaft sleeve is fixed above the suction pipe at intervals;
step S40, welding the baffle plate between the top plate and the bottom plate;
and S50, welding the fixing plate between the shaft sleeve and the suction pipe.
As a preferred technical solution of the manufacturing process of the reamer Liang Xiguan end of the dredger, before step S30, the mounting position of the top plate is marked on the sleeve to obtain a first mounting position, and the mounting position of the bottom plate is marked on the suction pipe to obtain a second mounting position, and the specific steps of step S30 are as follows: welding the top plate to the first mounting location and welding the bottom plate to the second mounting location.
As a preferable technical scheme of the manufacturing process of the reamer Liang Xiguan end of the dredger, in the step S30, the vertical distance between the top plate and the shaft sleeve is kept to be D1, D1 is less than or equal to 1mm and less than or equal to 2mm, and the vertical distance between the bottom plate and the suction pipe is kept to be D2, D2 is less than or equal to 1mm and less than or equal to 2mm.
As a preferable technical scheme of the manufacturing process of the reamer Liang Xiguan end of the dredger, the baffle is composed of a first plate section, a second plate section and a third plate section, the first plate section, the second plate section and the third plate section are sequentially welded, the first plate section and the third plate section are respectively located at two ends of the gap in the width direction, and the second plate section is located between the first plate section and the second plate section.
As a preferable technical scheme of the manufacturing process of the reamer Liang Xiguan end of the dredger, the first plate section, the second plate section and the third plate section are all arc-shaped, and the baffle is arc-shaped.
As a preferred technical solution of the manufacturing process of the reamer Liang Xiguan end of the dredger, the first, second and third plate segments are provided before the step S40, and the step S40 specifically includes: step S41, sequentially welding the first plate section, the second plate section and the third plate section, and controlling the sizes of butt joints between the first plate section and the second plate section and between the second plate section and the third plate section to be 3-5mm; step S42, welding the first plate section, the second plate section and the third plate section with the top plate and welding the first plate section, the second plate section and the third plate section with the bottom plate.
As a preferable technical scheme of the manufacturing process of the reamer Liang Xiguan end of the dredger, the fixing plate is in an arc-shaped structure.
As a preferable technical solution of the manufacturing process of the reamer Liang Xiguan end of the dredger, in step S50, the method further includes welding and fixing a side of the fixing plate facing away from the stern of the dredger with two ends of the top plate in the length direction, two ends of the bottom plate in the length direction, and two ends of the baffle in the length direction.
The beneficial effects of the invention are as follows: the blocking piece is arranged on one side of the fixing plate, which is away from the stern of the ship body, and the blocking piece is used for blocking the navigation water from contacting with one side of the fixing plate, which is away from the stern of the ship body, so that the contact area between the fixing plate and the navigation water is reduced, the corrosion speed of the navigation water to the fixing plate is effectively slowed down, the service life of the fixing plate is prolonged, frequent repair of the fixing plate is avoided, and the repair cost is reduced.
Drawings
The invention is described in further detail below with reference to the drawings and examples.
Fig. 1 is a structural view showing a case where a fixing plate is welded to a gap between a boss and a suction pipe according to an embodiment.
Fig. 2 is a diagram showing connection between the bottom plate and the baffle according to the embodiment.
Figure 3 is a block diagram of an embodiment of a barrier welded between a sleeve and a straw.
FIG. 4 is a block diagram of an embodiment where the stop and mount are welded between the sleeve and the straw.
Fig. 5 is a top view of the top plate according to the embodiment.
A top view of the base plate of the embodiment of fig. 6.
In the figure:
1. a shaft sleeve; 2. a suction pipe; 3. a fixing plate; 4. a blocking member; 41. a top plate; 42. a bottom plate; 43. a baffle; 431. a first plate segment; 432. a second plate segment; 433. a third plate segment; 5. a plate body; 6. a projection.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
As shown in fig. 1 to 6, the invention provides a welding process for a reamer Liang Xiguan end of a dredger, which provides a blocking member 4 and a fixing plate 3, wherein the fixing plate 3 is arranged close to a stern of a ship body, the blocking member 4 is arranged far away from the stern of the ship body, and when a reamer beam works, the blocking member 4 can block navigation water from contacting with one side of the fixing plate 3 away from the stern of the ship body, and the welding process comprises the following specific steps: the blocking member 4 is welded between the boss 1 and the suction pipe 2, and then the upper and lower ends of the fixing plate 3 are welded with the boss 1 and the suction pipe 2, respectively.
It will be appreciated that when the reamer beam is in operation (i.e. when the reamer in the sleeve 1 is in operation), navigation water enters the gap between the sleeve 1 and the suction pipe 2 and contacts the side of the fixing plate 3 facing away from the stern of the ship body, and as the side of the fixing plate 3 facing away from the stern of the ship body is not welded with the sleeve 1 and the suction pipe 2, the welding parts between the fixing plate 3 and the sleeve 1 and the suction pipe 2 are less, and the fixing effect of the fixing plate 3 is ineffective due to corrosion, thereby affecting the normal use of the dredger. The blocking piece 4 is arranged on one side of the fixing plate 3, which is away from the stern of the ship body, and the blocking piece 4 is used for blocking the navigation water from contacting with one side of the fixing plate 3, which is away from the stern of the ship body, so that the contact area between the fixing plate 3 and the navigation water is reduced, the corrosion speed of the navigation water to the fixing plate 3 is effectively slowed down, the service life of the fixing plate 3 is prolonged, frequent repair of the fixing plate 3 is avoided, and the repair cost is reduced. In the present specification, the term "sailing water" means sea water or fresh water.
In practice, the distance between the blocking member 4 and the fixing plate 3 is not too great (the distance between the blocking member 4 and the fixing plate 3 is generally 50-100 mm), so that the welding operation of the blocking member 4 between the sleeve 1 and the suction pipe 2 is not affected.
Referring to fig. 2 to 6, the barrier 4 includes a top plate 41, a baffle 43, and a bottom plate 42. The upper end and the lower extreme of baffle 43 respectively with roof 41 and bottom plate 42 welding, roof 41 and bottom plate 42 all include board body 5 and set up respectively at the bulge 6 at board body 5 length direction both ends, bulge 6 is towards hull stern protrusion, the bulge 6 of roof 41 is kept away from the one end of board body 5 and the bulge 6 of bottom plate 42 is kept away from the one end of board body 5 and is all kept away from a side welding of hull stern with fixed plate 3, baffle 43 is the arc, the both ends of baffle 43 length direction all fixed plate 3 deviates from a side welding of hull stern, enclose between fixed plate 3, baffle 43, bottom plate 42 and the roof 41 and establish and form seal region, block navigation water and fixed plate 3 to deviate from one side contact of hull stern through seal region. The baffle 43 is arc-shaped, and the baffle 43 is welded with the plate body 5 and the projection in the same top plate 41 or the same bottom plate 42 at the same time. In this example, the top plate 41, the bottom plate 42, and the baffle 43 are all 316L stainless steel plates.
The specific steps of welding the blocking member 4 between the sleeve 1 and the suction pipe 2 are: the top plate 41 is welded and fixed to the boss 1, the bottom plate 42 is welded and fixed to the suction pipe 2, and then the upper and lower ends of the baffle 43 are welded and fixed to the top plate 41 and the bottom plate 42, respectively. Because the gap between the shaft sleeve 1 and the suction pipe 2 is narrow, the welding operation space is limited, and the top plate 41 and the bottom plate 42 are respectively welded and fixed on the shaft sleeve 1 and the suction pipe 2 before the blocking piece 4 is assembled, so that the installation and the fixation of the top plate 41 and the bottom plate 42 are facilitated.
The welding process of the reamer beam suction pipe end of the dredger comprises the following steps:
step S10, determining a gap distribution area between the shaft sleeve 1 and the suction pipe 2 according to a drawing of the reamer beam to obtain a gap pattern;
step S20, designing a top plate 41 and a bottom plate 42 according to the gap pattern;
step S30, welding the top plate 41 to the sleeve 1 and the bottom plate 42 to the suction pipe 2, and then assembling the sleeve 1 and the suction pipe 2 such that the sleeve 1 is fixed above the suction pipe 2 at intervals. In this step, the vertical distance between the top plate 41 and the sleeve 1 is maintained at D1,1 mm.ltoreq.D1.ltoreq.2mm, the vertical distance between the bottom plate 42 and the suction pipe 2 is maintained at D2,1 mm.ltoreq.D2.ltoreq.2mm, so that spaces for deformation of the bottom plate 42 and the top plate 41 are reserved between the top plate 41 and the sleeve 1 and between the bottom plate 42 and the suction pipe 2, so that the baffle 43, when the ambient temperature changes to generate expansion and contraction and vibration of the working state of the reamer beam, the reamer beam has a certain deformation space, and the phenomenon of welding cracking is prevented. CO of 309L stainless steel flux-cored wire (diameter 1.2 mm) is adopted for concrete welding 2 The gas shielded welding is performed to weld the top plate 41 and the bottom plate 42. During welding, CO 2 The gas purity is greater than or equal to 99.5%, the welding current is 180-220A, and the welding voltage is 26-30V. After the top plate 41 and the bottom plate 42 are welded, after the interval of 24 hours, 100% dye test (PT) is performed on the welded areas on the top plate 41 and the bottom plate 42, and the welding quality is ensured.
When the top plate 41 and the bottom plate 42 are installed, the distance between the protruding part 6 of the top plate 41 and one end of the shaft sleeve 1 near the stern of the ship body and the distance between the protruding part 6 of the bottom plate 42 and one end of the suction pipe 2 near the stern of the ship body are controlled to be 10-15mm.
Step S40, welding a baffle 43 between the top plate 41 and the bottom plate 42;
step S50, welding the fixing plate 3 between the shaft sleeve 1 and the suction pipe 2.
In an embodiment, in step S50, the method further includes welding and fixing the side of the fixing plate 3 facing away from the stern of the hull with two ends of the top plate 41 in the length direction, two ends of the bottom plate 42 in the length direction, and two ends of the baffle plate 43 in the length direction, so that a sealing area is formed among the top plate 41, the bottom plate 42, the baffle plate 43, and the fixing plate 3.
In another embodiment, a side surface of the fixing plate 3 facing away from the bow of the ship body may be bonded with two protruding portions 6 of the top plate 41, two protruding portions 6 of the bottom plate 42, and two ends of the baffle plate 43 in the length direction by waterproof sealant, so that a sealing area is formed among the top plate 41, the bottom plate 42, the baffle plate 43, and the fixing plate 3. In specific implementation, before the fixing plate 3 is installed, waterproof sealant is coated on the protruding portion 6 of the top plate 41, the protruding portion 6 of the bottom plate 42 and the baffle 43, or waterproof sealant is directly coated on one side surface of the fixing plate 3, which faces away from the stern of the ship body, so that the fixing plate 3 is installed in place and can be adhered and fixed with the top plate 41, the bottom plate 42 and the baffle 43, and a sealing area is formed.
Before step S30, the mounting position of the top plate 41 is scribed on the sleeve 1 to obtain a first mounting position, and the mounting position of the bottom plate 42 is scribed on the suction pipe 2 to obtain a second mounting position, and the specific steps of step S30 are as follows: the top plate 41 is welded to the first mounting location and the bottom plate 42 is welded to the second mounting location. In this step, the mounting positions of the top plate 41 and the bottom plate 42 are determined on the boss 1 and the suction pipe 2, respectively, so that the mounting accuracy of the top plate 41 and the bottom plate 42 can be improved and the mounting speed can be increased.
Specifically, referring to fig. 2, the baffle 43 is composed of a first plate section 431, a second plate section 432, and a third plate section 433, the first plate section 431, the second plate section 432, and the third plate section 433 are welded in sequence, the first plate section 431 and the third plate section 433 are respectively located at both ends of the gap in the width direction, and the second plate section 432 is located between the first plate section 431 and the second plate section 432. The first plate section 431, the second plate section 432 and the third plate section 433 are all arc-shaped, and the first sealing plate is arc-shaped. The suction pipe 2 has a concave arc mechanism towards one side of the shaft sleeve 1, the shaft sleeve 1 has a convex arc structure towards one side, the cross section of a gap between the shaft sleeve 1 and the suction pipe 2 is arc-shaped, and the baffle 43 with the structure is adapted to the shape of the gap between the shaft sleeve 1 and the suction pipe 2.
In specific implementation, the first plate segment 431, the second plate segment 432 and the third plate segment 433 are provided before step S40, where in step S40 specifically: step S41, sequentially welding the first plate section 431, the second plate section 432 and the third plate section 433, and controlling the sizes of butt joints between the first plate section 431 and the second plate section 432 and between the second plate section 432 and the third plate section 433 to be 3-5mm; step S42, welding the first, second and third plate sections 431, 432 and 433 with the top plate 41, and welding the first, second and third plate sections 431, 432 and 433 with the bottom plate 42. The bevel angle between the first plate section 431 and the second plate section 432 and between the second plate section 432 and the third plate section 433 is 55 DEG.ltoreq.alpha.ltoreq.65 deg. The baffle 43 is formed by welding three plate sections, so that the arc machining and field installation difficulty of the baffle 43 is reduced, the installation accuracy of the baffle 43 is improved, and the baffle 43 is better adapted to the shape of a gap between the shaft sleeve 1 and the suction pipe 2. After 24 hours from the end of welding the barrier 4, the welded area was subjected to 100% dye test (PT) to ensure the weld quality.
Specifically, the vertical spacing between the top plate 41 and the baffle 43 is 3-5mm.
When the baffle plate 43 is welded to the top plate 41 and the baffle plate 43 is welded to the bottom plate 42, CO is used as a 316L stainless steel flux-cored wire (diameter: 1.2 mm) 2 Welding by gas shielded welding, CO 2 The purity of the gas is greater than or equal to 99.5%, the welding current is 150-200A, and the welding voltage is 23-27V.
During the welding of the top plate 41, the bottom plate 42 and the baffle plate 43, it is found that welding defects must be removed in time before welding can be continued to ensure the welding quality of the barrier 4.
In order to adapt the fixing plate 3 to the shape of the gap between the sleeve 1 and the suction pipe 2, the fixing plate 3 has an arc-shaped structure, and the fixing plate 3 is preferably welded with the sleeve 1 and the suction pipe 2.
Specifically, the welding groove angle of the fixed plate 3 is 40-55 degrees, and after the welding is finished for 24 hours, 100% magnetic powder inspection (MT) is performed on the welding area of the fixed plate 3, so that the welding quality of the welding line is ensured.
In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the operation, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
The technical principle of the present invention is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the invention and should not be taken in any way as limiting the scope of the invention. Other embodiments of the invention will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (9)
1. The manufacturing process of the reamer Liang Xiguan end of the dredger is characterized by providing a blocking piece and a fixing plate, wherein the fixing plate is arranged close to the stern of the dredger body, the blocking piece is far away from the stern of the dredger body, and when a reamer beam works, the blocking piece can block navigation water from contacting with one side of the fixing plate away from the stern of the dredger body, and the specific steps are as follows: firstly welding the blocking piece between the shaft sleeve and the suction pipe, then respectively welding the upper end and the lower end of the fixing plate with the shaft sleeve and the suction pipe, wherein the blocking piece comprises a top plate, a baffle plate and a bottom plate, and the specific steps of welding the blocking piece between the shaft sleeve and the suction pipe are as follows: the upper end and the lower end of the baffle are welded and fixed with the top plate and the bottom plate respectively.
2. A process for manufacturing the reamer Liang Xiguan end of a dredger according to claim 1, comprising the steps of:
step S10, determining a gap distribution area between the shaft sleeve and the suction pipe according to a drawing of the reamer beam to obtain a gap pattern;
step S20, designing the top plate and the bottom plate according to the gap pattern;
step S30, welding the top plate on the shaft sleeve, welding the bottom plate on the suction pipe, and then assembling the shaft sleeve and the suction pipe, so that the shaft sleeve is fixed above the suction pipe at intervals;
step S40, welding the baffle plate between the top plate and the bottom plate;
and S50, welding the fixing plate between the shaft sleeve and the suction pipe.
3. The process for manufacturing the reamer Liang Xiguan end of the dredger according to claim 2, wherein the first mounting position is obtained by scribing the mounting position of the top plate on the sleeve and the second mounting position is obtained by scribing the mounting position of the bottom plate on the suction pipe before the step S30, the specific steps of the step S30 are as follows: welding the top plate to the first mounting location and welding the bottom plate to the second mounting location.
4. A process for manufacturing a reamer Liang Xiguan end of a dredger according to claim 3, wherein in the step S30, a vertical distance between the top plate and the boss is maintained to be D1,1mm is less than or equal to D1 is less than or equal to 2mm, and a vertical distance between the bottom plate and the suction pipe is maintained to be D2,1mm is less than or equal to D2 is less than or equal to 2mm.
5. A process for manufacturing a reamer Liang Xiguan end of a dredger according to claim 3, wherein the baffle is composed of a first plate segment, a second plate segment and a third plate segment, the first plate segment, the second plate segment and the third plate segment are welded in sequence, the first plate segment and the third plate segment are located at two ends of the gap in the width direction, respectively, and the second plate segment is located between the first plate segment and the second plate segment.
6. The process for manufacturing the reamer Liang Xiguan end of the dredger according to claim 5, wherein the first, second and third plate segments are each arcuate and the barrier is arcuate.
7. The process for manufacturing the reamer Liang Xiguan end of the dredger according to claim 5, wherein the first, second and third plate segments are provided before the step S40, wherein the step S40 is specifically: step S41, sequentially welding the first plate section, the second plate section and the third plate section, and controlling the sizes of butt joints between the first plate section and the second plate section and between the second plate section and the third plate section to be 3-5mm; step S42, welding the first plate section, the second plate section and the third plate section with the plate body of the top plate, and welding the first plate section, the second plate section and the third plate section with the plate body of the bottom plate.
8. A process for manufacturing a reamer Liang Xiguan end of a dredger according to claim 3, wherein the fixing plates have an arc-shaped structure.
9. A process for manufacturing a reamer Liang Xiguan end of a dredger according to claim 3, wherein in step S50, the side of the fixing plate facing away from the stern of the dredger body is welded and fixed to the two ends of the top plate in the longitudinal direction, the two ends of the bottom plate in the longitudinal direction, and the two ends of the baffle in the longitudinal direction, respectively.
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| CN108453402A (en) * | 2017-12-13 | 2018-08-28 | 江苏海新船务重工有限公司 | A kind of reamer axle sleeve erecting and welding technique |
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| FR348363A (en) * | 1904-11-24 | 1905-04-11 | A F Smulders | Cutter for suction dredgers |
| CN2139597Y (en) * | 1992-08-05 | 1993-08-04 | 山东省淮河流域工程局勘测设计室 | Crown type reamer hood |
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| CN115430942A (en) | 2022-12-06 |
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