CN116511830A - Processing technology of large-scale winding drum device - Google Patents
Processing technology of large-scale winding drum device Download PDFInfo
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- CN116511830A CN116511830A CN202211364502.3A CN202211364502A CN116511830A CN 116511830 A CN116511830 A CN 116511830A CN 202211364502 A CN202211364502 A CN 202211364502A CN 116511830 A CN116511830 A CN 116511830A
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- 238000004804 winding Methods 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 title abstract description 10
- 238000005516 engineering process Methods 0.000 title abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 102
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 230000035882 stress Effects 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 13
- 238000004088 simulation Methods 0.000 claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 4
- 230000008646 thermal stress Effects 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 claims abstract description 3
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000000137 annealing Methods 0.000 claims description 6
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims description 4
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 abstract description 3
- 238000004321 preservation Methods 0.000 abstract 1
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004141 dimensional analysis Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
The invention provides a processing technology of a large-scale winding drum device, which comprises the steps of firstly processing a baffle assembly and a drum body respectively, then assembling the baffle assembly and the drum body together by using tool fixtures such as an open-edge clamping sleeve type distance flange, a resistance heating tape, an adjustable thrust supporting rod and the like, calculating stress and strain values through simulation by three-dimensional analysis software, pre-applying force in the opposite direction through simulation calculation by the adjustable thrust supporting rod before welding construction operation, monitoring the change of the stress in real time in the welding process, adjusting the welding position at any time to eliminate the influence of welding thermal stress, and carrying out heating and heat preservation treatment on welding parts after welding is finished, thereby solving the problem of difficult production and manufacture of the large-scale winding drum.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a machining process of a large-scale winding drum device.
Background
With the rapid development of modern science and technology, the scale of industrial production is enlarged, the degree of automation is improved, and the crane is more and more widely applied in the modern production process. In the hoisting machinery, the winding drum is an important bearing part of the crane, and the winding and unwinding of the winding wire rope is controlled by the action of the power system so as to realize the lifting or descending function of the crane when the crane lifts a heavy object, and the winding drum bears the lifting load of the crane, so that the safety and reliability of the winding drum directly influence the lifting, luffing, traction and other working characteristics of the crane. At present, a domestic crane winding drum is manufactured by butt welding of a cast steel cylinder body and rolling welding of a steel plate, the butt welding of the cast steel cylinder body is suitable for processing a small winding drum, the rolling welding of the steel plate is suitable for processing a large winding drum, the large winding drum is applied to a cargo crane of a port or a large ship, the diameter of the winding drum can reach more than one meter, the diameter of a winding drum baffle can reach more than two meters, and the winding drum can only be completed through welding processing.
A method of welding a spool is disclosed in patent documents of filing date 2017.09.06, filing number 201710795910.7 and filing publication number CN 107598447A, comprising: providing a cartridge housing and two spoke assemblies; assembling and positioning the two spoke assemblies to the two ends of the cartridge housing, respectively; the middle parts of the two spoke assemblies are fixedly connected by adopting a positioning rod, and the positioning rod is positioned in the cylinder shell; and positioning the spoke assemblies and the cylinder shell by adopting positioning plates, and respectively welding the spoke assemblies at two ends of the cylinder shell with the cylinder shell to obtain the winding drum. The scheme can prevent welding deformation and welding cold cracks of the winding drum to a certain extent when the specific winding drum is processed.
The two spoke components of the scheme are welded in the cylinder shell, the structure is not a conventional structure, the structure is simpler, the welding method is suitable for occasions with light load and moderate size, and is unsuitable for occasions with larger size, such as occasions with baffle diameters of more than two meters and heavy load bearing.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a processing technology of a large-scale winding drum device, which is used for respectively processing a baffle assembly and a drum body by adopting a proper technology and then assembling the baffle assembly and the drum body together so as to solve the problem of difficult production and manufacture of the large-scale winding drum.
In order to achieve the above purpose, the technical scheme of the invention is as follows: an assembly and welding process of a large-scale reel device comprises the following steps:
a. manufacturing a cylinder, leveling, rolling and forming after plate blanking, forming a welding groove, welding, checking, annealing or vibrating to eliminate welding stress, finishing in place by a machine tool, and checking again;
b. manufacturing a first baffle assembly and a second baffle assembly, forming a welding groove after blanking a plate, leveling, partially rolling and forming, assembling structural members, welding, checking, annealing or vibrating to eliminate welding stress, finishing in place by a machine tool, and checking a main welding line and an auxiliary welding line again;
c. providing tooling fixtures such as an open-edge cutting sleeve type distance flange, a resistance heating compress belt, an adjustable thrust support rod and the like;
d. installing an open-edge clamping sleeve type distance flange on the outer circle of the cylinder body, adjusting the position of the open-edge clamping sleeve type distance flange according to the distance between the first baffle plate component and the second baffle plate component on two sides of the cylinder body, locking after the open-edge clamping sleeve type distance flange is in place, and rechecking the distance between the two open-edge clamping sleeve type distance flanges;
e. the resistance heating compress belt is paved on the outer circumference of the matching part of the first baffle assembly and the second baffle assembly and the cylinder body, and after the set temperature is reached, the first baffle assembly and the second baffle assembly are sleeved on the cylinder body, so that the inner side surfaces of the first baffle assembly and the second baffle assembly are tightly attached to the side surface of the open-edge clamping type distance flange and the auxiliary welding seam position for electric welding and fixing;
f. more than three adjustable thrust supporting rods are arranged between the first baffle plate assembly and the second baffle plate assembly, stress and strain values are calculated through simulation by three-dimensional analysis software, and force in opposite directions is calculated through simulation by the adjustable thrust supporting rods in advance before welding construction operation; dismantling the cutting sleeve type distance flange with the open edge; paving the resistance heating compress belt at the main welding seam to heat the main welding seam, dismantling the resistance heating compress belt to start welding after reaching a set temperature, monitoring the change of stress in real time in the welding process, and adjusting the welding position at any time to eliminate the influence of the welding thermal stress until the welding is completed;
g. and (3) paving the resistance heating compress belt on the welded part, heating the welded part, preserving heat for 8-10 hours, removing the resistance heating compress belt, and cooling to normal temperature.
According to the process, the cylinder body, the first baffle plate assembly and the second baffle plate assembly are processed independently according to the requirements, so that error accumulation can be reduced as much as possible;
the open side clamping sleeve type distance flange is used, and after the bolts on the open side clamping sleeve type distance flange are unscrewed, the open side clamping sleeve type distance flange can axially move on the cylinder body; after the bolts are screwed down and locked, the baffle assembly is tightly attached to the open side clamping sleeve type distance flange to meet the design requirement of the baffle spacing as an axial positioning reference of the baffle assembly, and the positioning mode is simple to operate and high in positioning accuracy;
the first baffle plate assembly and the second baffle plate assembly are heated by using a resistance heating compress belt, and are installed through a hot matching process by utilizing the principle of thermal expansion and cold contraction, and after the installation is completed, the first baffle plate assembly and the second baffle plate assembly are cooled to form interference fit so as to tightly wrap the cylinder body;
the adjustable thrust strut can easily realize the adjustment of the distance between the first baffle plate assembly and the second baffle plate assembly;
and (c) heating and preserving heat of the welded part in the step g, which is equivalent to tempering the welded part, eliminating residual stress, stabilizing the size and improving the toughness of the material.
Further, the adjustable thrust support rod is a double-ended screw rod with a force transducer, and threads with opposite rotation directions are arranged at two ends of the adjustable thrust support rod.
The device is characterized in that the screw is rotated to adjust the nut to move outwards or inwards, the baffle is outwards supported or inwards retracted, the force value is displayed through the force measuring sensor, and the pretightening force of the nut is adjusted according to actual needs, so that the pretightening force is consistent with the simulation calculation stress.
Further, in the step f, a three-dimensional model is established through three-dimensional analysis software, the number of welding seam layers and the welding time are subdivided at the welding position according to the welding form and the welding size, and the welding thermal release process and the deformation influence of the internal stress on the model size are calculated through simulation.
The technology is a preventive production measure, and has obvious effect on stabilizing the welded dimension.
Further, in the step e, the outer circumference of the matching part of the first baffle assembly and the second baffle assembly and the cylinder body is heated to 120-150 ℃ by using the resistance heating tape, and the diameter of the holes of the first baffle assembly and the second baffle assembly can be increased by heating to the temperature range, so that the first baffle assembly and the second baffle assembly can be easily assembled on the cylinder body.
Further, in step f, the main welding seam is heated to 120-180 ℃ by using the resistance heating compress belt, and the thermal deformation of welding can be reduced by 90% when the main welding seam is heated to the temperature range.
Further, in the step g, the welded part is heated to 180 ℃ by using the resistance heating tape, heated to the temperature and kept for 8-10 hours, so that the residual stress can be eliminated more thoroughly, and the size is stabilized.
Drawings
FIG. 1 is a schematic illustration of an open-sided bayonet-type distance flange mounted on a barrel;
FIG. 2 is a schematic view of a first baffle assembly and a second baffle assembly mounted to a cylinder;
fig. 3 is a left side view of the spool.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1 to 3, a process for assembling and welding a large-scale drum device includes the steps of:
a. manufacturing a cylinder body 1, leveling after plate blanking, rolling and forming, forming a welding groove, welding, checking, annealing or vibrating to eliminate welding stress, finishing in place by a machine tool, and checking again;
b. manufacturing a first baffle assembly 2 and a second baffle assembly 3, forming a welding groove, leveling, partially rolling and forming after plate blanking, assembling structural members, welding, checking, annealing or vibrating to eliminate welding stress, finishing in place by a machine tool, and checking a main welding line and an auxiliary welding line again;
c. providing tooling fixtures such as an open-edge cutting sleeve type distance flange 4, a resistance heating compress belt, an adjustable thrust support rod 5 and the like;
d. as shown in fig. 1, an open-edge clamping sleeve type distance flange 4 is arranged on the outer circle of a cylinder body 1, the position of the open-edge clamping sleeve type distance flange 4 is adjusted according to the distance between a first baffle plate assembly 2 and a second baffle plate assembly 3 at two sides of the cylinder body 1, the open-edge clamping sleeve type distance flange is locked in place, and the distance between the two open-edge clamping sleeve type distance flanges 4 is rechecked; the open-edge clamping sleeve type distance flange 4 is used, and after the bolts on the open-edge clamping sleeve type distance flange 4 are unscrewed, the open-edge clamping sleeve type distance flange can axially move on the cylinder body 1; after the bolts are screwed and locked, the bolts are used as axial positioning references of the first baffle plate assembly 2 and the second baffle plate assembly 3, the first baffle plate assembly 2 and the second baffle plate assembly 3 are tightly attached to the edge-opening cutting sleeve type distance flange 4, so that the design requirement of the distance between the first baffle plate assembly 2 and the second baffle plate assembly 3 is met, the positioning mode is simple to operate, and the positioning accuracy is high;
e. the resistance heating compress belt is paved on the outer circumference of the matching part of the first baffle plate assembly 2 and the second baffle plate assembly 3 and the cylinder body 1, and after the set temperature is reached, the first baffle plate assembly 2 and the second baffle plate assembly 3 are sleeved on the cylinder body 1, so that the inner side surfaces of the first baffle plate assembly 2 and the second baffle plate assembly 3 are tightly attached to the side surface of the open-edge cutting sleeve type distance flange 4 and the auxiliary welding seam position for electric welding fixation;
f. installing more than three adjustable thrust supporting rods 5 between the first baffle plate assembly 2 and the second baffle plate assembly 3, establishing a three-dimensional model through three-dimensional analysis software, subdividing the number of welding layers and the welding time at a welding position according to the welding mode and the welding size, simulating and calculating the welding thermal release process and the deformation influence of internal stress on the model size, simulating and calculating stress and strain values, and applying force in the opposite direction through the adjustable thrust supporting rods 5 in advance before welding construction operation; the change of stress is monitored in real time in the welding process, and the welding position is adjusted at any time to eliminate the influence of the welding thermal stress;
the adjustable thrust strut 5 is a double-headed screw with a load cell. The threads at the two ends are in opposite rotation directions, and the adjustable nut moves outwards or inwards by rotating the screw rod, so that the first baffle plate assembly 2 and the second baffle plate assembly 3 are outwards supported or inwards retracted. The force value is displayed through the force measuring sensor, and the pretightening force of the nut is adjusted according to actual needs, so that the pretightening force is consistent with the simulation calculation stress obtained through three-dimensional analysis;
dismantling the cutting sleeve type distance flange 4; and (3) paving the resistance heating compress belt at the position of the main welding seam to heat the main welding seam, heating the welding position to 120-180 ℃, dismantling the resistance heating compress belt to start welding after the set temperature is reached, and continuously welding until the welding is completed.
g. And (3) paving the resistance heating compress belt on the welded part, heating the welded part to 180 ℃, preserving heat for 8-10 hours, removing the resistance heating compress belt, and cooling to normal temperature.
According to the processing technology, the barrel 1, the first baffle plate assembly 2 and the second baffle plate assembly 3 are firstly processed respectively, then the barrel 1, the first baffle plate assembly 2 and the second baffle plate assembly 3 are assembled together, tool clamps such as an edge opening cutting sleeve type distance flange 4, a resistance heating tape, an adjustable thrust supporting rod 5 and the like are assisted in assembling, and the stress and the strain value are calculated in a simulated mode in advance, so that the influence of the stress generated during welding on a winding drum can be prevented to the greatest extent, the winding drum is prevented from deforming, and the problem that large-scale winding drums are difficult to produce and manufacture is solved.
Claims (6)
1. The assembly and welding process of the large-scale winding drum device is characterized by comprising the following steps of:
a. manufacturing a cylinder, leveling, rolling and forming after plate blanking, forming a welding groove, welding, checking, annealing or vibrating to eliminate welding stress, finishing in place by a machine tool, and checking again;
b. manufacturing a first baffle assembly and a second baffle assembly, forming a welding groove after blanking a plate, leveling, partially rolling and forming, assembling structural members, welding, checking, annealing or vibrating to eliminate welding stress, finishing in place by a machine tool, and checking a main welding line and an auxiliary welding line again;
c. providing tooling fixtures such as an open-edge cutting sleeve type distance flange, a resistance heating compress belt, an adjustable thrust support rod and the like;
d. installing an open-edge clamping sleeve type distance flange on the outer circle of the cylinder body, adjusting the position of the open-edge clamping sleeve type distance flange according to the distance between the first baffle plate component and the second baffle plate component on two sides of the cylinder body, locking after the open-edge clamping sleeve type distance flange is in place, and rechecking the distance between the two open-edge clamping sleeve type distance flanges;
e. the resistance heating compress belt is paved on the outer circumference of the matching part of the first baffle assembly and the second baffle assembly and the cylinder body, and after the set temperature is reached, the first baffle assembly and the second baffle assembly are sleeved on the cylinder body, so that the inner side surfaces of the first baffle assembly and the second baffle assembly are tightly attached to the side surface of the open-edge clamping type distance flange and the auxiliary welding seam position for electric welding and fixing;
f. more than three adjustable thrust supporting rods are arranged between the first baffle plate assembly and the second baffle plate assembly, stress and strain values are calculated through simulation by three-dimensional analysis software, and force in opposite directions is calculated through simulation by the adjustable thrust supporting rods in advance before welding construction operation; dismantling the cutting sleeve type distance flange with the open edge; paving the resistance heating compress belt at the main welding seam to heat the main welding seam, dismantling the resistance heating compress belt to start welding after reaching a set temperature, monitoring the change of stress in real time in the welding process, and adjusting the welding position at any time to eliminate the influence of the welding thermal stress until the welding is completed;
g. and (3) paving the resistance heating compress belt on the welded part, heating the welded part, preserving heat for 8-10 hours, removing the resistance heating compress belt, and cooling to normal temperature.
2. The process for assembling and welding a large drum device according to claim 1, wherein: the adjustable thrust support rod is a double-ended screw rod with a force transducer, and threads with opposite rotation directions are arranged at two ends of the adjustable thrust support rod.
3. The process for assembling and welding a large drum device according to claim 1, wherein: in the step f, a three-dimensional model is established through three-dimensional analysis software, the number of welding seam layers and the welding time are subdivided at the welding position according to the welding form and the welding size, and the welding thermal release process and the deformation influence of the internal stress on the model size are calculated through simulation.
4. The process for assembling and welding a large drum device according to claim 1, wherein: and e, heating the outer circumference of the matching part of the first baffle assembly and the second baffle assembly and the cylinder body to 120-150 ℃ by using a resistance heating tape.
5. The process for assembling and welding a large drum device according to claim 1, wherein: in step f, the primary weld is heated to 120-180 ℃ by resistance heating the dressing.
6. The process for assembling and welding a large drum device according to claim 1, wherein: in step g, the welded part is heated to 180 ℃ by using a resistance heating compress belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211364502.3A CN116511830A (en) | 2022-11-02 | 2022-11-02 | Processing technology of large-scale winding drum device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211364502.3A CN116511830A (en) | 2022-11-02 | 2022-11-02 | Processing technology of large-scale winding drum device |
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| Publication Number | Publication Date |
|---|---|
| CN116511830A true CN116511830A (en) | 2023-08-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211364502.3A Pending CN116511830A (en) | 2022-11-02 | 2022-11-02 | Processing technology of large-scale winding drum device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116511830A (en) |
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2022
- 2022-11-02 CN CN202211364502.3A patent/CN116511830A/en active Pending
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