CN115610617A - Manufacturing method of cantilever structural member and cantilever structural member - Google Patents

Manufacturing method of cantilever structural member and cantilever structural member Download PDF

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Publication number
CN115610617A
CN115610617A CN202211253725.2A CN202211253725A CN115610617A CN 115610617 A CN115610617 A CN 115610617A CN 202211253725 A CN202211253725 A CN 202211253725A CN 115610617 A CN115610617 A CN 115610617A
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China
Prior art keywords
plate
vertical plate
cantilever
welding
square tube
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CN202211253725.2A
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Chinese (zh)
Inventor
代俊
杨新明
张�杰
张汉斌
李冰
刘新建
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Wuhan Marine Machinery Plant Co Ltd
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Wuhan Marine Machinery Plant Co Ltd
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Priority to CN202211253725.2A priority Critical patent/CN115610617A/en
Publication of CN115610617A publication Critical patent/CN115610617A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
    • B63B73/43—Welding, e.g. laser welding
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/30—Mounting of propulsion plant or unit, e.g. for anti-vibration purposes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

A method of manufacturing a cantilever structure, the method comprising: manufacturing a first assembly: manufacturing a square cylinder, wherein two cantilever shaft mounting holes are respectively formed in two sides of the square cylinder and are symmetrically arranged, a pre-processed cylindrical cantilever shaft is welded at each cantilever shaft mounting hole, and a front vertical plate is welded at the rear part of the square cylinder; manufacturing a second assembly: welding a rear vertical plate vertical to the wall plate on the wall plate; welding: welding the front vertical plate and the rear vertical plate into a whole to obtain a cantilever structural member; the utility model provides a cantilever structure spare includes square tube, cylinder cantilever axle, riser and wallboard, and the bottom of square tube is provided with the flange board, and the both sides of square tube respectively are provided with the cantilever axle of a cylinder, and the rear portion of square tube is connected with the wallboard through the riser. The design can ensure that the coaxiality of the two cantilever shafts on the cantilever structural member meets the design requirement, and the deformation of the processed structural member is reduced.

Description

Manufacturing method of cantilever structural member and cantilever structural member
Technical Field
The invention relates to the technical field of ship propulsion, in particular to a manufacturing method of a cantilever structural member and the cantilever structural member, which are particularly suitable for manufacturing the cantilever structural member for connecting a motor propulsion device and a ship.
Background
The motor propulsion device is widely applied to the field of ships, and the motor propulsion device directly drives the blades to do work by utilizing the rotation of the motor rotor so as to propel the ships to advance. In the motor propulsion device, a motor and a guide pipe are combined into a whole, a stator of the motor is arranged in the guide pipe, a rotor of the motor and blades of the guide pipe are integrated into a whole, and the motor can directly drive the blades to rotate to do work when working so as to realize navigation of a ship. The heavy pipe of the motor propulsion device needs to be connected with the ship body through the flange on the cantilever structure.
In the prior art, when a cantilever structure is processed, two cantilever shafts on the cantilever structure need to be kept coaxial, in order to ensure the processing precision, the two cantilever shafts are usually welded into a whole and then processed, so that the sizes and the precision of the cantilever shafts and other components on the cantilever structure meet the design requirements, however, for the cantilever structure with a large size, the extension sizes of the cantilever shafts at the two ends are long, the size of a cone body below the cantilever shafts is also large, a large-scale grinding machine needs to be used for processing, and the processing is inconvenient and consumes a long time. If the two cantilever shafts are assembled and welded after being processed, the coaxiality of the two cantilever shafts cannot meet the design requirements easily, and the problem of deformation of the welded structural member exists for a large cantilever structural member. Therefore, a manufacturing method of a cantilever structure and a cantilever structure are needed, which can make the coaxiality of two cantilever shafts of a split structure in the cantilever structure meet the design requirements and simultaneously avoid the deformation of the processed structure.
Disclosure of Invention
The invention aims to overcome the problems that two cantilever shafts of a split structure in a cantilever structural member with a larger size are difficult to process after assembly, so that the coaxiality of the two cantilever shafts cannot be ensured, and the machined cantilever structural member is easy to deform, and provides a manufacturing method of the cantilever structural member and the cantilever structural member, which can ensure the coaxiality of the two cantilever shafts in the cantilever structural member and can avoid the deformation of the welded structural member.
In order to achieve the above purpose, the technical solution of the invention is as follows:
a method of manufacturing a cantilever structure, the method comprising:
step one, manufacturing a first assembly:
a1, manufacturing a square tube, wherein two sides of the square tube are respectively provided with a cantilever shaft mounting hole, and the two cantilever shaft mounting holes are symmetrically arranged;
a2, welding a pre-processed cylindrical cantilever shaft at each of the two cantilever shaft mounting holes;
a3, welding the front vertical plate on the rear part of the square barrel;
step two, manufacturing a second assembly:
welding a rear vertical plate vertical to the wall plate on the wall plate;
step three, welding:
and welding the front vertical plate and the rear vertical plate into a whole to obtain the cantilever structural member.
In the step A1, the manufacturing of the square tube specifically includes:
a11, providing two first steel plates and two second steel plates, wherein the first steel plates are rectangular steel plates, the second steel plates are parallelogram steel plates, and cantilever shaft mounting holes are formed in the second steel plates;
a12, oppositely arranging the two first steel plates and the two second steel plates, and welding the two first steel plates and the two second steel plates together to obtain a hollow cylindrical structure surrounded by the two first steel plates and the two second steel plates;
and A13, welding a flange plate at the bottom of the hollow cylindrical structure.
Step A2, welding a pre-processed cylindrical cantilever shaft at each of the two cantilever shaft mounting holes specifically includes:
providing a tool dummy shaft, wherein the tool dummy shaft comprises a left cylinder arm, a positioning cylinder and a right cylinder arm which are coaxially arranged, the end part of the left cylinder arm is connected with one end of the positioning cylinder, the other end of the positioning cylinder is connected with the end part of the right cylinder arm, the outer diameter of the left cylinder arm is equal to the outer diameter of the right cylinder arm, the outer diameter of the left cylinder arm and the outer diameter of the right cylinder arm are both matched with the inner diameter of the cantilever shaft, and the outer diameter of the left cylinder arm and the outer diameter of the right cylinder arm are both smaller than the outer diameter of the positioning cylinder;
a21, inserting a tool dummy shaft into the two cantilever shaft mounting holes, and enabling the positioning cylinder to be located in the middle of the square cylinder;
a22, sleeving the inner end of one cantilever shaft on the left cylinder arm, and sleeving the inner end of the other cantilever shaft on the right cylinder arm;
and A23, respectively welding the two cantilever shafts sleeved on the left cylinder arm and the right cylinder arm at the mounting holes of the two cantilever shafts.
Step A3, welding the front vertical plate on the rear part of the square tube specifically comprises:
a31, marking an assembly line of a front vertical plate on the rear wall of the square cylinder;
a32, placing a front vertical plate along an assembly line of the front vertical plate, and enabling the front vertical plate to be perpendicular to the rear wall of the square cylinder and the flange plate at the same time;
and A33, welding the front vertical plate and the rear wall of the square cylinder along the assembly line of the front vertical plate.
The first step of manufacturing the first assembly further comprises the step of arranging a sealing plate at an opening at the top of the square cylinder;
set up the shrouding at the opening part at square cylinder top and specifically include:
and placing a sealing plate on the top of the square cylinder, and welding the sealing plate and the square cylinder.
In the second step of manufacturing the second assembly, welding a rear vertical plate perpendicular to the wall plate on the wall plate specifically includes:
b1, marking an assembly line of a rear vertical plate on the wall plate, placing the rear vertical plate along the assembly line of the rear vertical plate, and enabling the rear vertical plate to be vertical to the wall plate;
and B2, welding the rear vertical plate and the wall plate along the assembly line of the rear vertical plate.
The second step of manufacturing the second assembly further comprises: a plurality of reinforcing rib plates are welded between the rear vertical plate and the wall plate.
Step three, in the welding, weld preceding riser and back riser as an organic whole and specifically include:
c1, placing the first assembly and the second assembly on an assembly platform, enabling the front vertical plate and the rear vertical plate to be kept in a vertical state, butting one side of the front vertical plate far away from the square barrel with one side of the rear vertical plate far away from the wall plate, and then clamping and fixing the front vertical plate and the rear vertical plate through a clamp tool;
and C2, welding the butt joint of the front vertical plate and the rear vertical plate.
The fixture tool comprises a support and a clamping plate, the support comprises a base and a vertical positioning plate, the bottom of the positioning plate is vertically connected with the top of the base, and the positioning plate and the clamping plate are arranged oppositely;
the middle part of the positioning plate is provided with a first elongated operation hole, the top and the bottom of the positioning plate are provided with first through holes, the middle part of the clamping plate is provided with second operation holes corresponding to the first operation holes, the top and the bottom of the clamping plate are provided with second through holes corresponding to the first through holes one by one, internal threads are arranged in the first through holes, the same fastening bolt is arranged in the corresponding group of the first through holes and the second through holes, and a screw rod of the fastening bolt is in threaded fit with the first through holes after penetrating through the second through holes;
in step C1, clamping and fixing the front vertical plate and the rear vertical plate through the fixture tool specifically includes:
c11, placing the support on an assembly platform, enabling the front vertical plate and the rear vertical plate which are well butted to be located between the positioning plate and the clamping plate, and enabling the first operation hole and the second operation hole to be over against the butted position of the front vertical plate and the rear vertical plate;
c12, inserting the same fastening bolt into the corresponding first through hole and the corresponding second through hole, locking the positioning plate and the clamping plate through the fastening bolt, and pressing and fixing the front vertical plate and the rear vertical plate through the positioning plate and the clamping plate.
The cantilever structure includes: the flange plate is arranged at the bottom of the square cylinder, the cylindrical cantilever shafts are respectively arranged on two sides of the square cylinder, the two cantilever shafts are symmetrically arranged, the inner ends of the cantilever shafts are fixedly arranged in mounting holes in the cylinder wall of the square cylinder, and the insides of the cantilever shafts are communicated with the insides of the square cylinder through the mounting holes;
the rear side wall of the square tube is connected with one side of the vertical plate, the other side of the vertical plate is connected with the wall plate, the vertical plate is perpendicular to the rear side wall of the square tube, the vertical plate is perpendicular to the wall plate, and a plurality of reinforcing rib plates are arranged between the vertical plate and the wall plate.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the manufacturing method of the cantilever structural member, the first assembly and the second assembly are manufactured respectively, and then the first assembly and the second assembly are welded into a whole to obtain the cantilever structural member, so that the manufacturing process is simple; meanwhile, two cylindrical cantilever shafts are machined firstly when the first assembly is manufactured, then the machined cylindrical cantilever shafts are welded at the mounting holes on the two sides of the square cylinder, a large grinding machine is not required to be used for machining the installed cantilever shafts again after welding is completed, the machining time can be effectively shortened when a large cantilever structural member is machined, and the machining difficulty is reduced. Therefore, the manufacturing process of the cantilever structural member in the design is simple, the mounted cantilever shaft does not need to be processed by a large grinding machine after welding, the processing time can be effectively shortened, and the processing difficulty can be reduced.
2. The manufacturing method of the cantilever structure member comprises the steps of enabling the fixture dummy shaft to penetrate through the two mounting holes before welding the cylindrical cantilever shafts, enabling the two cantilever shafts to be respectively sleeved on the two cylinder arms of the fixture dummy shaft, and then welding the two cantilever shafts. Therefore, when the cylindrical cantilever shaft is assembled, the tool dummy shaft is used for assisting in positioning the two cantilever shafts, and the coaxiality of the two cantilever shafts in the cantilever structural member can be ensured to meet the design requirement.
3. According to the manufacturing method of the cantilever structural member, the first assembly and the second assembly are placed on the assembly platform, the front vertical plate and the rear vertical plate are kept in a vertical state, the front vertical plate and the rear vertical plate are butted and clamped and fixed through the fixture tool, the front vertical plate and the rear vertical plate are kept in a vertical state for welding, the vertical plate can be effectively prevented from deforming, and the machining precision of the cantilever structural member is guaranteed; meanwhile, the base is arranged in the fixture tool, the vertical positioning plate is fixedly installed on the base, the fixture tool is placed on the assembly platform through the base, the weight of the fixture tool cannot cause deformation of the vertical plate, the fixture tool can provide certain support for the vertical plate, and deformation of the cantilever structural member in the welding process is avoided. Therefore, preceding riser and back riser keep vertical state to weld in this design, and the anchor clamps frock can provide certain support for the riser, prevents effectively that the cantilever structure spare from warping in welding process, improves the machining precision of cantilever structure spare.
Drawings
Fig. 1 is a schematic view of the structure of the cantilever structure.
Fig. 2 is an elevation view of the cantilevered structural member.
Fig. 3 is a top view of the cantilevered structural member.
Fig. 4 is a schematic view of the abutting configuration of the first and second components of the cantilevered structural member.
Fig. 5 is a schematic structural view of a square tube.
Fig. 6 is a plan view of the square tube.
Fig. 7 is a schematic structural view of the second assembly.
FIG. 8 is a schematic structural view of a dummy shaft of the tool.
FIG. 9 is a schematic view of a welding cantilever shaft.
FIG. 10 is a schematic view showing the machined tooling dummy shaft being pushed out of the cantilever shaft.
Fig. 11 is a schematic view of welding the front and rear risers.
Fig. 12 is a schematic view of the front vertical plate and the rear vertical plate being clamped and fixed by a clamp tool.
FIG. 13 is a schematic view of a clamp tooling.
Fig. 14 is a schematic view of a stent.
Fig. 15 is a schematic view of a splint.
In the figure: the square tube comprises a square tube 1, a first steel plate 11, a second steel plate 12, a cantilever shaft mounting hole 121, a cantilever shaft 2, a vertical plate 3, a front vertical plate 31, a rear vertical plate 32, a wall plate 4, a flange plate 5, a reinforcing rib plate 6, a sealing plate 7, a fixture dummy shaft 8, a fixture 9, a support 91, a base 911, a positioning plate 912, a rib plate 913, a clamping plate 92, a first operating hole 93, a first through hole 94, a second operating hole 95, a second through hole 96, a fastening bolt 97, a left tube arm 81, a positioning tube 82, a right tube arm 83, a first assembly 10 and a second assembly 20.
Detailed Description
The present invention will be described in further detail with reference to the following description and embodiments in conjunction with the accompanying drawings.
Referring to fig. 1 to 15, a cantilever structure comprises: the square tube comprises a square tube 1, cylindrical cantilever shafts 2, vertical plates 3 and wall plates 4, wherein a flange plate 5 is arranged at the bottom of the square tube 1, the two sides of the square tube 1 are respectively provided with one cylindrical cantilever shaft 2, the two cantilever shafts 2 are symmetrically arranged, the inner ends of the cantilever shafts 2 are fixedly arranged in mounting holes 121 in the tube wall of the square tube 1, and the interiors of the cantilever shafts 2 are communicated with the interior of the square tube 1 through the mounting holes 121;
the rear side wall of the square tube 1 is connected with one side of the vertical plate 3, the other side of the vertical plate 3 is connected with the wall plate 4, the vertical plate 3 is perpendicular to the rear side wall of the square tube 1 and the wall plate 4, and a plurality of reinforcing rib plates 6 are arranged between the vertical plate 3 and the wall plate 4.
The vertical plate 3 is formed by welding a front vertical plate 31 and a rear vertical plate 32.
A method of manufacturing a cantilevered structural member, the method comprising:
step one, manufacturing a first assembly 10:
a1, manufacturing a square tube 1, wherein two sides of the square tube 1 are respectively provided with a cantilever shaft mounting hole 121, and the two cantilever shaft mounting holes 121 are symmetrically arranged;
wherein, preparation square tube 1 specifically includes:
a11, providing two first steel plates 11 and two second steel plates 12, wherein the first steel plates 11 are rectangular steel plates, the second steel plates 12 are parallelogram steel plates, cantilever shaft mounting holes 121 are formed in the second steel plates 12,
a12, oppositely arranging two first steel plates 11, oppositely arranging two second steel plates 12, enabling the two first steel plates 11 to be parallel to each other and the two second steel plates 12 to be parallel to each other, fixing the two first steel plates 11 and the two second steel plates 12 through spot welding, welding a welding seam between the steel plates by adopting CO2 gas shielded welding, and welding the two first steel plates 11 and the two second steel plates 12 together to obtain a hollow cylindrical structure surrounded by the two first steel plates 11 and the two second steel plates 12;
a13, after the hollow cylindrical structure is obtained, welding a flange plate 5 at the bottom of the hollow cylindrical structure;
welding flange plate 5 specifically includes at the bottom of hollow column structure:
horizontally placing a flange plate 5 on an assembly platform, and placing a hollow cylindrical structure on the top of the flange plate 5, so that the central line of the hollow cylindrical structure passes through the central point of the flange plate 5, and a second steel plate 12 in the hollow cylindrical structure is perpendicular to the flange plate 5;
when the hollow cylindrical structure is placed on the top of the flange plate 5, firstly, marking an assembly line of the hollow cylindrical structure on the top surface of the flange plate 5, and then placing the hollow cylindrical structure along the assembly line of the hollow cylindrical structure;
after the bottom of the hollow cylindrical structure and the top connecting part of the flange plate 5 are fixed through spot welding, welding seams at the connecting part of the hollow cylindrical structure and the flange plate 5 are welded through CO2 gas shielded welding, the flange plate 5 is welded to obtain the square tube 1, the square tube 1 needs to be corrected after the square tube 1 is obtained, and the height of the square tube 1 and the flatness of the flange plate 5 are ensured to meet design requirements.
A2, welding a pre-processed cylindrical cantilever shaft 2 at each of two cantilever shaft mounting holes 121, and during welding, using a tool dummy shaft 8 to perform auxiliary assembly on the cantilever shaft 2, wherein the tool dummy shaft 8 comprises a left cylinder arm 81, a positioning cylinder 82 and a right cylinder arm 83 which are coaxially arranged, the end part of the left cylinder arm 81 is connected with one end of the positioning cylinder 82, and the other end of the positioning cylinder 82 is connected with the end part of the right cylinder arm 83;
the outer diameter of the left cylinder arm 81 is equal to the outer diameter of the right cylinder arm 83, the outer diameter of the left cylinder arm 81 and the outer diameter of the right cylinder arm 83 are matched with the inner diameter of the cantilever shaft 2, in order to guarantee the concentricity of the cantilever shaft 2, the outer surfaces of the left cylinder arm 81 and the right cylinder arm 83 are in H8f7 tolerance fit with the inner surface of the cylindrical cantilever shaft 2, in the welding process, only a small play gap is reserved between the outer surface of the cylinder arm and the inner surface of the cylindrical cantilever shaft 2, and the coaxiality of the two cylindrical cantilever shafts 2 can be effectively improved.
The outer diameter of the left cylinder arm 81 and the outer diameter of the right cylinder arm 83 are both smaller than the outer diameter of the positioning cylinder 82, the outer diameter of the positioning cylinder 82 is larger than the inner diameter of the cantilever shaft 2, and the positioning cylinder 82 has a limiting effect on the cantilever shaft 2; meanwhile, the outer diameter of the positioning cylinder 82 is smaller than or equal to the aperture of the cantilever shaft mounting hole 121, so that the tooling dummy shaft 8 can be inserted into the cantilever shaft mounting hole 121 conveniently.
As shown in fig. 6 and 9, the radial length of the positioning cylinder 82 is less than or equal to the distance L3 between the two second steel plates 12, and two end faces of the positioning cylinder 82 can limit the cantilever shaft 2;
welding a pre-machined cylindrical cantilever shaft 2 at each of the two cantilever shaft mounting holes 121 specifically includes:
a21, inserting the fixture dummy shaft 8 into the two cantilever shaft mounting holes 121, and enabling the positioning cylinder 82 to be located in the middle of the square cylinder 1;
a22, mounting the cantilever shafts 2, so that the inner end of one cantilever shaft 2 is sleeved on the left cylinder arm 81, the inner end of the other cantilever shaft 2 is sleeved on the right cylinder arm 83, and the inner ends of the cantilever shafts 2 are inserted into the cantilever shaft mounting holes 121; at the moment, the concentricity of the two cantilever shafts 2 can be ensured within a certain range through the tooling dummy shaft 8;
and A23, keeping the state that the inner end of one cantilever shaft 2 is sleeved on the left cylinder arm 81 and the inner end of the other cantilever shaft 2 is sleeved on the right cylinder arm 83, welding along the cantilever shaft mounting holes 121, respectively welding the two cantilever shafts 2 sleeved on the left cylinder arm 81 and the right cylinder arm 83 at the two cantilever shaft mounting holes 121, welding the cantilever shafts 2 and the square cylinder 1 into a whole, and completing welding of the two cantilever shafts 2.
In the welding process, the positions of the two cantilever shafts 2 are fixed by spot welding, then the two cantilever shafts 2 are welded, and the two cantilever shafts 2 are welded alternately to control the welding deformation.
As shown in fig. 8, when welding two cantilever shafts 2, the cantilever shafts 2 are supported by a support frame in order to prevent the deformation of the cantilever shafts 2.
As shown in fig. 9, after the welding of the cantilever shafts 2 is completed, a part of the positioning cylinder 82 in the middle of the tooling dummy shaft 8 is cut off by using a flame cutting method, the cut-off part can be taken out from the opening at the top of the square tube 1, then lubricating oil is added into the two cantilever shafts 2, the left tube arm 81 and the right tube arm 83 are pushed into the square tube 1 by using a press, and finally the left tube arm 81 and the right tube arm 83 pushed into the square tube 1 are taken out from the opening at the top of the square tube 1.
In order to facilitate taking out the cut fixture dummy shaft 8 from the square cylinder 1, the axial lengths of the left cylinder arm 81 and the right cylinder arm 83 are both smaller than the distance between the two cantilever shaft mounting holes 121.
A3, weld preceding riser 31 in the rear portion of square tube 1, specifically include:
a31, marking an assembly line of the front vertical plate 31 on the rear wall of the square barrel 1: an assembly line of the front vertical plate 31 is drawn on the first steel plate 11 as the rear wall of the square tube 1 according to the central line of the first steel plate 11;
the deviation of the assembly line of the front vertical plate 31 is less than or equal to 1mm;
a32, placing a front vertical plate 31 along an assembly line of the front vertical plate 31, and enabling the front vertical plate 31 to be perpendicular to the rear wall of the square tube 1 and the flange plate 5 at the same time, wherein the perpendicularity between the front vertical plate 31 and a first steel plate 11 serving as the rear wall of the square tube 1 is less than or equal to 1mm;
and A33, welding the front vertical plate 31 and the rear wall of the square tube 1 along the assembly line of the front vertical plate 31 to finish the welding of the front vertical plate 31. In the process of welding the front vertical plate 31, the front vertical plate 31 is fixed by spot welding, and then the welding seam between the front vertical plate 31 and the first steel plate 11 is welded.
The first step of manufacturing the first assembly 10 further comprises the step of arranging a sealing plate 7 at an opening at the top of the square tube 1;
set up shrouding 7 at the opening part at 1 tops of square tube and specifically include:
after the cantilever shaft 2 is welded, the square tube 1 is placed on the assembly platform, the sealing plate 7 is placed at the top of the square tube 1, and the sealing plate 7 and the square tube 1 are welded.
In the process of welding the sealing plate 7, the sealing plate 7 is fixed on the square tube 1 through tack welding, and then welding is carried out on the sealing plate 7 along the periphery of the sealing plate.
The sealing plate 7 is a rectangular steel plate, and the shape of the sealing plate 7 is matched with the opening at the top of the square tube 1.
The square cylinder 1, the two cantilever shafts 2, the flange connecting plate 5, the front vertical plate 31 and the sealing plate 7 form a first assembly 10.
Step two, manufacturing a second assembly: welding a rear vertical plate 32 vertical to the wall plate 4 on the wall plate 4;
the welding of the rear vertical plate 32 perpendicular to the wall plate 4 on the wall plate 4 specifically includes:
b1, providing a wall plate 4 and a rear vertical plate 32, and marking an assembly line of the rear vertical plate 32 on the wall plate 4, wherein the assembly line of the rear vertical plate 32 is positioned in the middle of the wall plate 4;
placing the rear vertical plate 32 along the assembly line of the rear vertical plate 32, enabling the rear vertical plate 32 to be perpendicular to the wall plate 4, and enabling the perpendicularity between the rear vertical plate 32 and the wall plate 4 to be less than or equal to 1mm;
and B2, welding the rear vertical plate 32 and the wall plate 4 along the assembly line of the rear vertical plate 32.
In the process of welding the rear vertical plate 32 and the wall plate 4, the rear vertical plate 32 and the wall plate 4 are fixed through tack welding, and then the welding seam between the rear vertical plate 32 and the wall plate 4 is welded through CO2 gas shielded welding.
The step two, the step of manufacturing the second assembly further comprises: a plurality of reinforcing rib plates 6 are welded between the rear vertical plate 32 and the wall plate 4.
Welding a plurality of deep floor plates 6 between back riser 32 and wallboard 4 specifically includes:
a plurality of reinforcing rib plates 6 are symmetrically arranged on two sides of the rear vertical plate 32, the reinforcing rib plates 6 are perpendicular to the rear vertical plate 32, and then the reinforcing rib plates 6 are welded on the rear vertical plate 32 and the wall plate 4 along the edges of the reinforcing rib plates 6. In the welding process, the reinforcing rib plate 6 is fixed with the rear vertical plate 32 and the wall plate 4 through spot welding, and then the welding seams between the reinforcing rib plate 6 and the rear vertical plate 32 and the wall plate 4 are welded through CO2 gas shielded welding.
The wall plate 4, the rear vertical plate 32 and the reinforcing rib plate 6 together form a second assembly 20.
Step three, welding:
and welding the front vertical plate 31 and the rear vertical plate 32 into a whole to obtain the cantilever structural member.
As shown in fig. 4, welding the front vertical plate 31 and the rear vertical plate 32 into a whole specifically includes:
c1, placing the first assembly 10 and the second assembly 20 on an assembly platform, enabling the front vertical plate 31 and the rear vertical plate 32 to keep vertical, butting one side of the front vertical plate 31 far away from the barrel 1 with one side of the rear vertical plate 32 far away from the wall plate 4, and then clamping and fixing the front vertical plate 31 and the rear vertical plate 32 through the clamp tool 9;
c2, welding the butt joint of the front vertical plate 31 and the rear vertical plate 32.
And (3) welding the butt joint of the front vertical plate 31 and the rear vertical plate 32 by using electron beam welding: the front vertical plate 31 and the rear vertical plate 32 are firstly subjected to tack welding by using electron beam welding, the front vertical plate 31 and the rear vertical plate 32 are fixed, and the interval between every two tack welding points is 40-50mm when the tack welding is carried out. And after the spot welding is finished, performing electron beam welding on the welding line between the front vertical plate 31 and the rear vertical plate 32, welding from top to bottom in the welding process of the welding line, and opening the vacuum chamber after heat preservation for 0.5 hour after welding.
The edge of the front vertical plate 31 far away from the square barrel 1 is matched with the edge of the rear vertical plate 32 far away from the wall plate 4, and the whole formed by butting the front vertical plate 31 and the rear vertical plate 32 is the complete vertical plate 3. In the course of working, because the shape structure of each part is different, it is very inconvenient directly to weld the both sides of complete riser 3 in square tube 1 and wallboard 4, consequently, split into two steel sheets of preceding riser 31 and back riser 32 with riser 3, preceding riser 31 assembles as a part of first subassembly 10, back riser 32 assembles as a part of second subassembly 20, treat first subassembly 10, after second subassembly 20 all makes, weld preceding riser 31 and back riser 32 as an organic whole again, obtain complete riser 3, complete riser 3 is with first subassembly 10, second subassembly 20 connects as an organic whole.
As shown in fig. 13, 14 and 15, the fixture assembly 9 includes a bracket 91 and a clamping plate 92, the bracket 91 includes a base 911 and a vertical positioning plate 912, the bottom of the positioning plate 912 is vertically connected with the top of the base 911, and the positioning plate 912 is disposed opposite to the clamping plate 92;
a long first operation hole 93 is formed in the middle of the positioning plate 912, first through holes 94 are formed in the top and the bottom of the positioning plate 912, second operation holes 95 corresponding to the first operation holes 93 are formed in the middle of the clamping plate 92, second through holes 96 corresponding to the first through holes 94 one to one are formed in the top and the bottom of the clamping plate 92, internal threads are formed in the first through holes 94, the same fastening bolt 97 is arranged in the corresponding group of first through holes 94 and the second through hole 96, and a screw of the fastening bolt 97 is in threaded fit with the first through holes 94 after penetrating through the second through holes 96. The positioning plate 912 and the clamping plate 92 can be locked by the fastening bolt 97, the front vertical plate 31 and the rear vertical plate 32 are both positioned between the positioning plate 912 and the clamping plate 92, and the positioning plate 912 and the clamping plate 92 can compress and fix the front vertical plate 31 and the rear vertical plate 32.
Meanwhile, since the middle part of the positioning plate 912 is provided with the elongated first operation hole 93, and the middle part of the clamp plate 92 is provided with the second operation hole 95 corresponding to the first operation hole 93, when the front vertical plate 31 and the rear vertical plate 32 are clamped, the first operation hole 93 and the second operation hole 95 are opposite to the butt joint part of the front vertical plate 31 and the rear vertical plate 32, and after the front vertical plate 31 and the rear vertical plate 32 are tightly pressed and fixed, welding operation can be performed through the first operation hole 93 and the second operation hole 95.
As shown in fig. 11 and 12, in the step C1, the step of clamping and fixing the front vertical plate 31 and the rear vertical plate 32 by the fixture tool 9 specifically includes:
c11, placing the bracket 91 on the assembly platform, so that the butted front vertical plate 31 and rear vertical plate 32 are positioned between the positioning plate 912 and the clamping plate 92, and the first operation hole 93 and the second operation hole 95 are over against the butted position of the front vertical plate 31 and the rear vertical plate 32;
c12, inserting the same fastening bolt 97 into the corresponding first through hole 94 and second through hole 96, locking the positioning plate 912 and the clamping plate 92 through the fastening bolt 97, and pressing and fixing the front vertical plate 31 and the rear vertical plate 32 by the positioning plate 912 and the clamping plate 92.
The cantilever structure includes: the square tube comprises a square tube 1, cylindrical cantilever shafts 2, a vertical plate 3 and a wall plate 4, wherein the bottom of the square tube 1 is fixedly connected with the top of a flange plate 5, the two sides of the square tube 1 are respectively provided with one cylindrical cantilever shaft 2, the inner end of each cylindrical cantilever shaft 2 is fixedly arranged in a mounting hole in the wall of the square tube 1, the rear side wall of the square tube 1 is vertically connected with the front end of the vertical plate 3, the rear end of the vertical plate 3 is vertically connected with the wall plate 4, a plurality of reinforcing rib plates 6 are symmetrically arranged on the two sides of the vertical plate 3, the side parts of the reinforcing rib plates 6 are vertically connected with the side wall of the vertical plate 3, and the bottom of the reinforcing rib plates 6 is vertically connected with the side wall of the wall plate 4.
A rib plate 913 is further arranged between the base 911 and the vertical positioning plate 912 for preventing the positioning plate 912 from deforming. Because support 91 includes base 911 and vertical locating plate 912, support 91 places on assembly platform through the base, and the weight of whole anchor clamps frock 9 can not cause the deformation of riser 3, avoids processing back structure to warp. Meanwhile, in the process of welding the front vertical plate 31 and the rear vertical plate 32, the front vertical plate 31 and the rear vertical plate 32 are both in a vertical state, and the deformation of the front vertical plate 31 and the rear vertical plate 32 in the machining process can also be avoided.
The principle of the invention is illustrated as follows:
the cantilever structure is used for connecting the motor propulsion device with the ship body, a flange plate 5 in the cantilever structure is connected with a guide pipe in the click propulsion device, a stator of the motor is arranged in the guide pipe in the motor propulsion device, a rotor of the motor and blades of the guide pipe are integrated, the motor drives the blades of the guide pipe to do work when working, and the navigation of the ship is realized. The cantilever structure can rotate for rotation center by two cantilever shafts 2, and motor advancing device rotates along with the cantilever structure, and when need not to use motor advancing device, it is rotatory to the hull inside to drive motor advancing device through cantilever structure, and when needs used motor advancing device, it is rotatory to the hull outside to drive motor advancing device through cantilever structure, and motor advancing device acting impels the hull to advance.
Example 1:
a method of manufacturing a cantilever structure, the method comprising:
step one, manufacturing a first assembly 10:
a1, manufacturing a square tube 1, wherein two cantilever shaft mounting holes 121 are respectively formed in two sides of the square tube 1, and the two cantilever shaft mounting holes 121 are symmetrically arranged;
a2, welding a pre-processed cylindrical cantilever shaft 2 at each of the two cantilever shaft mounting holes 121;
a3, welding the front vertical plate 31 on the rear part of the square tube 1;
step two, manufacturing a second assembly 20:
a rear vertical plate 32 vertical to the wall plate 4 is welded on the wall plate 4;
step three, welding:
and welding the front vertical plate 31 and the rear vertical plate 32 into a whole to obtain the cantilever structural member.
In the step A1, the manufacturing of the square tube 1 specifically includes:
a11, providing two first steel plates 11 and two second steel plates 12, wherein the first steel plates 11 are rectangular steel plates, the second steel plates 12 are parallelogram steel plates, and cantilever shaft mounting holes 121 are formed in the second steel plates 12;
a12, oppositely arranging the two first steel plates 11 and the two second steel plates 12, and welding the two first steel plates 11 and the two second steel plates 12 together to obtain a hollow cylindrical structure surrounded by the two first steel plates 11 and the two second steel plates 12;
and A13, welding a flange plate 5 at the bottom of the hollow cylindrical structure.
The step A2 of welding a pre-processed cylindrical cantilever shaft 2 to each of the two cantilever shaft mounting holes 121 specifically includes:
providing a tooling dummy shaft 8, wherein the tooling dummy shaft 8 comprises a left cylinder arm 81, a positioning cylinder 82 and a right cylinder arm 83 which are coaxially arranged, the end part of the left cylinder arm 81 is connected with one end of the positioning cylinder 82, the other end of the positioning cylinder 82 is connected with the end part of the right cylinder arm 83, the outer diameter of the left cylinder arm 81 is equal to the outer diameter of the right cylinder arm 83, the outer diameter of the left cylinder arm 81 and the outer diameter of the right cylinder arm 83 are both matched with the inner diameter of the cantilever shaft 2, and the outer diameter of the left cylinder arm 81 and the outer diameter of the right cylinder arm 83 are both smaller than the outer diameter of the positioning cylinder 82;
a21, inserting the tooling dummy shaft 8 into the two cantilever shaft mounting holes 121, and enabling the positioning cylinder 82 to be positioned in the middle of the square cylinder 1;
a22, mounting the cantilever shafts 2, and enabling the inner end of one cantilever shaft 2 to be sleeved on the left cylinder arm 81 and the inner end of the other cantilever shaft 2 to be sleeved on the right cylinder arm 83;
and A23, welding the two cantilever shafts 2 sleeved on the left cylinder arm 81 and the right cylinder arm 83 at the two cantilever shaft mounting holes 121 respectively.
The step A3 of welding the front vertical plate 31 to the rear portion of the square tube 1 specifically includes:
a31, marking an assembly line of a front vertical plate 31 on the rear wall of the square barrel 1;
a32, placing the front vertical plate 31 along the assembly line of the front vertical plate 31, and enabling the front vertical plate 31 to be perpendicular to the rear wall of the square tube 1 and the flange plate 5 at the same time;
and A33, welding the front vertical plate 31 and the rear wall of the square tube 1 along the assembly line of the front vertical plate 31.
Step one, manufacturing the first assembly 10, and arranging a sealing plate 7 at an opening at the top of the square tube 1;
set up shrouding 7 at the opening part at 1 tops of square tube and specifically include:
and placing the sealing plate 7 on the top of the square tube 1, and welding the sealing plate 7 and the square tube 1.
A cantilevered structural member, comprising: the square tube comprises a square tube 1, cylindrical cantilever shafts 2, vertical plates 3 and wall plates 4, wherein a flange plate 5 is arranged at the bottom of the square tube 1, the two sides of the square tube 1 are respectively provided with one cylindrical cantilever shaft 2, the two cantilever shafts 2 are symmetrically arranged, the inner ends of the cantilever shafts 2 are fixedly arranged in mounting holes 121 in the tube wall of the square tube 1, and the interiors of the cantilever shafts 2 are communicated with the interior of the square tube 1 through the mounting holes 121;
the rear side wall of the square barrel 1 is connected with one side of the vertical plate 3, the other side of the vertical plate 3 is connected with the wall plate 4, the vertical plate 3 is perpendicular to the rear side wall of the square barrel 1, the vertical plate 3 is perpendicular to the wall plate 4, and a plurality of reinforcing rib plates 6 are arranged between the vertical plate 3 and the wall plate 4.
Example 2:
example 2 is substantially the same as example 1 except that:
in the second step of manufacturing the second assembly, welding the rear vertical plate 32 perpendicular to the wall plate 4 on the wall plate 4 specifically includes:
b1, marking an assembly line of a rear vertical plate 32 on the wall plate 4, placing the rear vertical plate 32 along the assembly line of the rear vertical plate 32, and enabling the rear vertical plate 32 to be perpendicular to the wall plate 4;
and B2, welding the rear vertical plate 32 and the wall plate 4 along the assembly line of the rear vertical plate 32.
The second step of manufacturing the second assembly further comprises: a plurality of reinforcing rib plates 6 are welded between the rear vertical plate 32 and the wall plate 4.
Example 3:
example 3 is substantially the same as example 2, except that:
step three, in the welding, welding the front vertical plate 31 and the rear vertical plate 32 into a whole specifically includes:
c1, placing the first assembly 10 and the second assembly 20 on an assembly platform, enabling the front vertical plate 31 and the rear vertical plate 32 to keep a vertical state, butting one side of the far cylinder 1 of the front vertical plate 31 with one side of the far wall plate 4 of the rear vertical plate 32, and then clamping and fixing the front vertical plate 31 and the rear vertical plate 32 through the clamp tool 9;
c2, welding the butt joint of the front vertical plate 31 and the rear vertical plate 32.
The fixture tool 9 comprises a bracket 91 and a clamping plate 92, wherein the bracket 91 comprises a base 911 and a vertical positioning plate 912, the bottom of the positioning plate 912 is vertically connected with the top of the base 911, and the positioning plate 912 is arranged opposite to the clamping plate 92;
a long first operation hole 93 is formed in the middle of the positioning plate 912, first through holes 94 are formed in the top and the bottom of the positioning plate 912, second operation holes 95 corresponding to the first operation holes 93 are formed in the middle of the clamping plate 92, second through holes 96 corresponding to the first through holes 94 in a one-to-one manner are formed in the top and the bottom of the clamping plate 92, internal threads are formed in the first through holes 94, the same fastening bolt 97 is arranged in the corresponding group of first through holes 94 and the second through holes 96, and a screw of the fastening bolt 97 is in threaded fit with the first through holes 94 after penetrating through the second through holes 96;
in step C1, clamping and fixing the front vertical plate 31 and the rear vertical plate 32 by the fixture tool 9 specifically includes:
c11, placing the bracket 91 on the assembly platform, so that the butted front vertical plate 31 and rear vertical plate 32 are located between the positioning plate 912 and the clamping plate 92, and the first operation hole 93 and the second operation hole 95 are over against the butted position of the front vertical plate 31 and the rear vertical plate 32;
and C12, inserting the same fastening bolt 97 into the corresponding first through hole 94 and second through hole 96, locking the positioning plate 912 and the clamping plate 92 through the fastening bolt 97, and pressing and fixing the front vertical plate 31 and the rear vertical plate 32 by the positioning plate 912 and the clamping plate 92.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, but equivalent modifications or changes made by those skilled in the art according to the present disclosure should be included in the scope of the present invention as set forth in the appended claims.

Claims (10)

1. A method for manufacturing a cantilever structure, comprising:
the manufacturing method comprises the following steps:
step one, manufacturing a first assembly (10):
a1, manufacturing a square tube (1), wherein two cantilever shaft mounting holes (121) are respectively formed in two sides of the square tube (1), and the two cantilever shaft mounting holes (121) are symmetrically arranged;
a2, welding a pre-processed cylindrical cantilever shaft (2) at each of the two cantilever shaft mounting holes (121);
a3, welding a front vertical plate (31) at the rear part of the square tube (1);
step two, manufacturing a second assembly (20):
a rear vertical plate (32) vertical to the wall plate (4) is welded on the wall plate (4);
step three, welding:
and welding the front vertical plate (31) and the rear vertical plate (32) into a whole to obtain the cantilever structural member.
2. The method of claim 1, wherein the cantilever structure is made by:
in the step A1, the manufacturing of the square tube (1) specifically includes:
a11, providing two first steel plates (11) and two second steel plates (12), wherein the first steel plates (11) are rectangular steel plates, the second steel plates (12) are parallelogram steel plates, and cantilever shaft mounting holes (121) are formed in the second steel plates (12);
a12, oppositely arranging the two first steel plates (11) and the two second steel plates (12), and welding the two first steel plates (11) and the two second steel plates (12) together to obtain a hollow cylindrical structure surrounded by the two first steel plates (11) and the two second steel plates (12);
and A13, welding a flange plate (5) at the bottom of the hollow cylindrical structure.
3. The method of claim 2, wherein the cantilever structure is manufactured by:
the step A2 of welding a pre-processed cylindrical cantilever shaft (2) at each of the two cantilever shaft mounting holes (121) specifically includes:
providing a tool dummy shaft (8), wherein the tool dummy shaft (8) comprises a left cylinder arm (81), a positioning cylinder (82) and a right cylinder arm (83) which are coaxially arranged, the end part of the left cylinder arm (81) is connected with one end of the positioning cylinder (82), the other end of the positioning cylinder (82) is connected with the end part of the right cylinder arm (83), the outer diameter of the left cylinder arm (81) is equal to the outer diameter of the right cylinder arm (83), the outer diameter of the left cylinder arm (81) and the outer diameter of the right cylinder arm (83) are both matched with the inner diameter of the cantilever shaft (2), and the outer diameter of the left cylinder arm (81) and the outer diameter of the right cylinder arm (83) are both smaller than the outer diameter of the positioning cylinder (82);
a21, inserting a tool dummy shaft (8) into the two cantilever shaft mounting holes (121), and enabling a positioning cylinder (82) to be located in the middle of the square cylinder (1);
a22, mounting two cantilever shafts (2), and enabling the inner end of one cantilever shaft (2) to be sleeved on the left cylinder arm (81) and the inner end of the other cantilever shaft (2) to be sleeved on the right cylinder arm (83);
a23, welding two cantilever shafts (2) sleeved on the left cylinder arm (81) and the right cylinder arm (83) at two cantilever shaft mounting holes (121) respectively.
4. The method of claim 3, wherein the cantilever structure is manufactured by:
the step A3 of welding the front vertical plate (31) on the rear part of the square tube (1) specifically comprises the following steps:
a31, marking an assembly line of a front vertical plate (31) on the rear wall of the square barrel (1);
a32, placing a front vertical plate (31) along an assembly line of the front vertical plate (31), and enabling the front vertical plate (31) to be perpendicular to the rear wall of the square tube (1) and the flange plate (5) at the same time;
and A33, welding the front vertical plate (31) and the rear wall of the square tube (1) along the assembly line of the front vertical plate (31).
5. The method of claim 4, wherein the cantilever structure is manufactured by:
the first step of manufacturing the first assembly (10) further comprises the step of arranging a sealing plate (7) at an opening at the top of the square tube (1);
set up shrouding (7) and specifically include at the opening part at square tube (1) top:
and (3) placing the sealing plate (7) on the top of the square cylinder (1), and welding the sealing plate (7) and the square cylinder (1).
6. The method of claim 1, wherein the cantilever structure is manufactured by a method comprising:
in the second step of manufacturing the second assembly, welding a rear vertical plate (32) perpendicular to the wall plate (4) on the wall plate (4) specifically comprises:
b1, marking an assembly line of a rear vertical plate (32) on the wall plate (4), placing the rear vertical plate (32) along the assembly line of the rear vertical plate (32), and enabling the rear vertical plate (32) to be perpendicular to the wall plate (4);
and B2, welding the rear vertical plate (32) and the wall plate (4) along the assembly line of the rear vertical plate (32).
7. The method of claim 6, wherein the cantilever structure is made by:
the second step of manufacturing the second assembly further comprises: a plurality of reinforcing rib plates (6) are welded between the rear vertical plate (32) and the wall plate (4).
8. The method of manufacturing a cantilever structure according to any one of claims 1-7, wherein:
step three, in the welding, the welding of the front vertical plate (31) and the rear vertical plate (32) into a whole specifically comprises:
c1, placing a first assembly (10) and a second assembly (20) on an assembly platform, enabling a front vertical plate (31) and a rear vertical plate (32) to be kept in a vertical state, butting one side of the front vertical plate (31) far away from a barrel (1) with one side of a rear vertical plate (32) far away from a wall plate (4), and then clamping and fixing the front vertical plate (31) and the rear vertical plate (32) through a clamp tool (9);
and C2, welding the butt joint of the front vertical plate (31) and the rear vertical plate (32).
9. The method of claim 8, wherein the cantilever structure is manufactured by:
the clamp tool (9) comprises a support (91) and a clamping plate (92), the support (91) comprises a base (911) and a vertical positioning plate (912), the bottom of the positioning plate (912) is vertically connected with the top of the base (911), and the positioning plate (912) and the clamping plate (92) are arranged oppositely;
a first long operating hole (93) is formed in the middle of the positioning plate (912), first through holes (94) are formed in the top and the bottom of the positioning plate (912), second operating holes (95) corresponding to the first operating holes (93) are formed in the middle of the clamping plate (92), second through holes (96) corresponding to the first through holes (94) in a one-to-one mode are formed in the top and the bottom of the clamping plate (92), internal threads are formed in the first through holes (94), the same fastening bolt (97) is arranged in the corresponding group of first through holes (94) and the second through holes (96), and a screw rod of the fastening bolt (97) penetrates through the second through holes (96) and then is in threaded fit with the first through holes (94);
in step C1, clamp preceding riser (31) and back riser (32) through anchor clamps frock (9) and fix and specifically include:
c11, placing the support (91) on the assembly platform, enabling the front vertical plate (31) and the rear vertical plate (32) which are in butt joint to be located between the positioning plate (912) and the clamping plate (92), and enabling the first operation hole (93) and the second operation hole (95) to be over against the butt joint position of the front vertical plate (31) and the rear vertical plate (32);
c12, inserting the same fastening bolt (97) into the corresponding first through hole (94) and the second through hole (96), locking the positioning plate (912) and the clamping plate (92) through the fastening bolt (97), and pressing and fixing the front vertical plate (31) and the rear vertical plate (32) through the positioning plate (912) and the clamping plate (92).
10. A cantilevered structural member, comprising:
the cantilever structure includes: the square tube type wall hanging device comprises a square tube (1), cylindrical cantilever shafts (2), vertical plates (3) and wall plates (4), wherein a flange plate (5) is arranged at the bottom of the square tube (1), the two sides of the square tube (1) are respectively provided with one cylindrical cantilever shaft (2), the two cantilever shafts (2) are symmetrically arranged, the inner ends of the cantilever shafts (2) are fixedly arranged in cantilever shaft mounting holes (121) in the tube wall of the square tube (1), and the interiors of the cantilever shafts (2) are communicated with the interiors of the square tube (1) through the cantilever shaft mounting holes (121);
the rear side wall of the square tube (1) is connected with one side of the vertical plate (3), the other side of the vertical plate (3) is connected with the wall plate (4), the vertical plate (3) is perpendicular to the rear side wall of the square tube (1), the vertical plate (3) is perpendicular to the wall plate (4), and a plurality of reinforcing rib plates (6) are arranged between the vertical plate (3) and the wall plate (4).
CN202211253725.2A 2022-10-13 2022-10-13 Manufacturing method of cantilever structural member and cantilever structural member Pending CN115610617A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211253725.2A CN115610617A (en) 2022-10-13 2022-10-13 Manufacturing method of cantilever structural member and cantilever structural member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211253725.2A CN115610617A (en) 2022-10-13 2022-10-13 Manufacturing method of cantilever structural member and cantilever structural member

Publications (1)

Publication Number Publication Date
CN115610617A true CN115610617A (en) 2023-01-17

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ID=84863141

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211253725.2A Pending CN115610617A (en) 2022-10-13 2022-10-13 Manufacturing method of cantilever structural member and cantilever structural member

Country Status (1)

Country Link
CN (1) CN115610617A (en)

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