CN116979397B - Explosion-proof box and processing method thereof - Google Patents
Explosion-proof box and processing method thereof Download PDFInfo
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- CN116979397B CN116979397B CN202311068830.3A CN202311068830A CN116979397B CN 116979397 B CN116979397 B CN 116979397B CN 202311068830 A CN202311068830 A CN 202311068830A CN 116979397 B CN116979397 B CN 116979397B
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- frame
- side wall
- plate
- splice plate
- bottom plate
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- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 27
- 239000010959 steel Substances 0.000 claims abstract description 27
- 238000003466 welding Methods 0.000 claims description 27
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000003754 machining Methods 0.000 claims description 7
- 238000004880 explosion Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000003698 laser cutting Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/46—Boxes; Parts thereof or accessories therefor
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/01—Frameworks
- H02B1/012—Details of mechanical connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/01—Frameworks
- H02B1/013—Profiles for cabinet frames
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
An explosion-proof box and a processing method thereof are characterized in that: the thickness of the bottom plate is larger than that of the side wall and is the same as that of the frame, the outer outline of the bottom plate is matched with the inner outline of the frame, and the bottom plate and the frame can be formed by dividing the same steel plate. By adopting the scheme, the steel plate cut from the inner side position of the frame can be directly used as the bottom plate, so that the utilization rate of materials can be greatly improved, waste is reduced, cost is reduced, the thickness of the bottom plate is increased, the structure is more stable, deformation is not easy to occur, the service life is prolonged, and the explosion-proof use requirement is met.
Description
Technical Field
The invention relates to the technical field of explosion prevention, in particular to an explosion-proof box and a processing method thereof.
Background
The explosion-proof distribution box is a distribution box with explosion-proof performance, and is suitable for electricity distribution in flammable and explosive places such as petrochemical devices, petroleum platforms, chemical industry, pharmacy, coal, smelting, shipbuilding, military industry, textile and the like. The explosion-proof box generally comprises a box body and a cover body, wherein the upper end of the box body is provided with an opening, the edge of the upper end of the box body is provided with a frame, flange connection holes are formed in the frame, and the box body and the cover body can be fixedly connected through flanges.
When the explosion-proof box is designed and produced, all dimensional designs of the explosion-proof box are carefully calculated, and under the premise of ensuring the necessary explosion-proof performance level requirement, manufacturers can strictly control the production cost of the explosion-proof box, and the thickness dimensions of all parts can be limited as much as possible, so that the material cost is reduced, and the economic benefit is improved.
In the prior art, the box body of the explosion-proof box is formed by splicing 3 steel plates with consistent thickness, one steel plate is bent to be U-shaped, and the other two steel plates are welded on two sides of the U-shaped plate body, so that the box body with an open upper end is formed, that is, the thickness of the bottom plate and the side wall of the box body are generally consistent.
In addition, the frame is used for forming flange connection with the cover body, and the frame also needs to bear flange connection pressure when the cover body is connected, so that the thickness of the frame is larger than the thickness of the side wall of the box body in general.
However, the prior art has the following defects:
1) The frame is usually formed by directly cutting in a laser cutting mode, and the thickness of the frame is larger than that of the side wall of the box body, so that the residual steel plate after cutting cannot be suitable for the box body and cannot be reused in the production of the explosion-proof box, a large amount of waste materials are generated, the material is wasted, and the manufacturing cost is high;
2) Under the premise of the same pressure, the larger the area is, the more easily the deformation is caused, and generally the area of the bottom plate of the box body is larger than the area of each side wall of the box body, so that the deformation problem is more easily caused by the opposite side walls of the bottom plate.
Disclosure of Invention
In order to overcome the defects of the background technology, the invention provides an explosion-proof box and a processing method thereof.
The invention adopts the technical scheme that: the explosion-proof box comprises a box body with an opening at the upper end, wherein the box body comprises a side wall, a bottom plate is arranged at the lower end of the side wall, a frame is arranged at the upper end of the side wall, and a plurality of flange connecting holes are formed in the frame; the thickness of the bottom plate is larger than that of the side wall and is the same as that of the frame, the outer contour of the bottom plate is matched with the inner contour of the frame, and the bottom plate and the frame can be formed by dividing the same steel plate; the bottom plate is fixedly welded with the lower end of the side wall, and the frame is fixedly welded with the upper end of the side wall.
The outside of lateral wall is provided with a plurality of boss, the frame cover is outside the lateral wall and set up on the boss, just the frame is simultaneously with lateral wall, boss fixed welding.
The upper end face of the side frame is higher than the upper end face of the side wall, a limit frame is arranged on the upper end face of the side wall opposite to the inner side of the side frame, a seal groove is formed between the limit frame and the side frame, and a seal strip is arranged in the seal groove.
And the reinforcing block is fixedly welded with the side wall.
The side wall is formed by splicing a first splice plate and a second splice plate; the first splice plate is integrally bent to form a rectangular frame with a notch, the second splice plate is correspondingly arranged at the notch, and two ends of the second splice plate are fixedly welded with the first splice plate.
The processing method of the explosion-proof box comprises the following steps:
1. Selecting a first steel plate with the thickness of m, and cutting a lower frame on the first steel plate, wherein the first steel plate cut from the inner side position of the frame is used as a bottom plate;
2. Selecting a second steel plate with the thickness of n, and cutting the first splice plate and the second splice plate on the second steel plate, wherein n is smaller than m;
3. Bending the first splice plate to enable the first splice plate to form a rectangular frame matched with the inner outline of the frame, wherein a notch is formed on one side face of the rectangular frame, meanwhile, the second splice plate is embedded into the notch, and the first splice plate and the second splice plate are spliced together in a spot welding mode to form a side wall;
4. one end of the side wall is embedded into the frame, and the side wall and the frame are spliced together in a spot welding mode;
5. the bottom plate is spliced with the side wall, and the side wall bottom plates are mutually spliced together in a spot welding mode to form a box body;
6. carrying out full welding on the welding wire on the inner side and the outer side of the box body;
7. And (5) carrying out finish machining on the box body.
The outside of lateral wall is provided with a plurality of reinforcing blocks, and when installing the reinforcing block, fixed concatenation of reinforcing block and lateral wall, frame through the mode of spot welding earlier, then carries out the welding wire full weld.
The upper end face of the side frame is higher than the upper end face of the side wall, a limit frame is arranged on the upper end face of the side wall opposite to the inner side of the side frame, a seal groove is formed between the limit frame and the side frame, and a seal strip is arranged in the seal groove.
The beneficial effects of the invention are as follows: by adopting the scheme, the steel plate cut from the inner side position of the frame can be directly used as the bottom plate, so that the utilization rate of materials can be greatly improved, waste is reduced, cost is reduced, the thickness of the bottom plate is increased, the structure is more stable, deformation is not easy to occur, the service life is prolonged, and the explosion-proof use requirement is met.
Drawings
Fig. 1 is a schematic structural view of an explosion-proof box according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a case according to an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional view of a case according to an embodiment of the present invention.
Fig. 4 is an enlarged schematic view at a in fig. 3.
Fig. 5 is a schematic structural diagram of a base plate and a frame according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a first splice plate and a second splice plate according to an embodiment of the invention.
Detailed Description
Embodiments of the invention are further described below with reference to the accompanying drawings:
As shown in the figure, an explosion-proof box comprises a box body 10 and a cover body 20, wherein the box body 10 and the cover body 20 are connected through a hinge 30, and when the cover body is closed, the box body 10 and the cover body 20 can be connected through a flange.
The box 10 is including being rectangle structure's lateral wall 1, lateral wall 1 lower extreme is provided with bottom plate 2, lateral wall 1 upper end is provided with frame 3, be formed with a plurality of flange joint holes 31 on the frame 3.
The side wall 1 is formed by splicing a first splice plate 8 and a second splice plate 9. The first splice plate 8 is integrally bent to form a rectangular frame with a notch 81, the second splice plate 9 is correspondingly arranged at the notch 81, and two ends of the second splice plate 9 are fixedly welded with the first splice plate 8. Compared with the side wall structure of the conventional explosion-proof box body, the included angle can form a larger round angle, so that the appearance is more attractive, and the structure is more stable.
The thickness of the bottom plate 2 is greater than that of the side wall 1, and the bottom plate 2 is fixedly welded with the lower end of the side wall 1, so that the thickness is increased relative to the bottom plate of the conventional explosion-proof box body, the structure is more stable, deformation is not easy to occur, and the service life is prolonged.
The frame 3 is sleeved at the upper end of the side wall 1 and fixedly welded with the side wall 1, and the thickness of the frame 3 is also larger than that of the side wall, so that the flange connection pressure during connection of the cover body can be borne. Wherein, the thickness of the frame 3 is the same as that of the bottom plate 2, and the outer contour of the bottom plate 2 is matched with the inner contour of the frame 3. That is, the frame 3 and the bottom plate 2 can be cut from the same steel plate, and the steel plate cut from the inner side of the frame can be directly used as the bottom plate, so that the utilization rate of materials can be greatly improved, waste is reduced, and cost is reduced.
In addition, the outside of lateral wall 1 is provided with a plurality of reinforcing blocks 4, and reinforcing block 4 is located the below of frame 3 to simultaneously with lateral wall 1, frame 3 fixed welding, reinforcing block 4 also supports the reinforcement to frame 3 when further increasing lateral wall 1 intensity.
The up end of frame 3 exceeds the up end of lateral wall 1, the inboard of the relative frame 3 of up end of lateral wall 1 is provided with spacing frame 5, form seal groove 6 between spacing frame 5 and the frame 3, be equipped with sealing strip 7 in the seal groove 6, when the lid is closed, can realize the reliable seal between lid and the box through sealing strip 7.
In the prior art, a sealing groove is usually milled directly on the upper end face of the frame for installing a sealing strip, but when the sealing groove is milled, attention is required to be paid to keeping a certain safety distance with a flange connection hole on the frame, and meanwhile, the flange connection hole and the outer edge of the frame also need to keep a certain distance, so that the width of the frame needs to be widened, and the overall size of the box body is increased.
Here, through the mode formation seal groove that sets up spacing frame in the lateral wall upper end, with seal groove and sealing strip setting in the frame inboard, need not the up end milling flutes at the frame, for among the prior art, can further reduce the width dimension of frame, consequently under the same dimension specification (usually with the maximum size of box as standard), the inner space of box can be bigger.
In the explosion-proof box, the processing explosion-proof of the box body specifically comprises the following steps:
1. Selecting a first steel plate with proper length and width and thickness m, and cutting a lower frame 3 on the first steel plate in a laser cutting mode, wherein the first steel plate cut from the inner side position of the frame 3 is used as a bottom plate 2;
2. selecting a second steel plate with proper length and width and thickness n, and cutting a first splice plate 8 and a second splice plate 9 on the second steel plate in a laser cutting mode, wherein the specific value of n < m, m and n is specifically determined according to the overall dimension specification of the explosion-proof box, for example, m can be 12mm, and the corresponding n can be 8mm;
3. polishing and deburring all the cut plates and chamfering;
4. Bending the first splice plate 8, and splicing the first splice plate 8 and the second splice plate 9 together in a spot welding mode to form the side wall 1;
5. One end of the side wall 1 is embedded into the frame 3, and the side wall 1 and the frame 3 are spliced together in a spot welding mode;
6. The bottom plate 2 is spliced with the side wall 1, and the bottom plates 2 of the side wall 1 are mutually spliced together in a spot welding mode to form a box body;
7. Fully welding the outer side of the spliced box body with welding wires;
8. Firstly, fixedly splicing each reinforcing block 4 with the side wall 1 and the frame 2 in a spot welding mode, and then fully welding wires, wherein the reinforcing blocks 4 are cut and formed in a laser cutting mode;
9. turning over the box body, and then fully welding the welding wire on the inner side of the box body;
10. The mounting feet and the hinges are welded on the box body;
11. Finish machining is carried out on the box body, and the finish machining specifically comprises hole site machining on the box body and roughness machining on the connecting surface;
12. The limiting frame 5 is placed on a step milled at the upper end of the side wall 1 and welded and fixed;
13. the sealing strip 7 is embedded and stuck in the sealing groove 6 between the limit frame 5 and the side frame 3.
In addition, the cover body of the explosion-proof box is cut and formed in a laser cutting mode, and after the cover body is cut down, the cover body is sequentially subjected to polishing chamfering treatment and finish machining treatment, then a handle and a welding hinge are installed, and finally the cover body is hinged with the box body through the hinge.
By adopting the scheme, the steel plate cut from the inner side position of the frame can be directly used as the bottom plate, so that the utilization rate of materials can be greatly improved, waste is reduced, cost is reduced, the thickness of the bottom plate is increased, the structure is more stable, deformation is not easy to occur, the service life is prolonged, and the explosion-proof use requirement is met.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between 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. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The skilled person will know: while the invention has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the invention, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.
Claims (8)
1. The explosion-proof box comprises a box body with an opening at the upper end, wherein the box body comprises a side wall (1), a bottom plate (2) is arranged at the lower end of the side wall (1), a frame (3) is arranged at the upper end of the side wall (1), and a plurality of flange connecting holes (31) are formed in the frame (3);
the method is characterized in that: the thickness of the bottom plate (2) is larger than that of the side wall (1) and is the same as that of the frame (3), the outer contour of the bottom plate (2) is matched with the inner contour of the frame (3), and the bottom plate (2) and the frame (3) can be formed by dividing the same steel plate;
The bottom plate (2) is fixedly welded with the lower end of the side wall (1), and the frame (3) is fixedly welded with the upper end of the side wall (1).
2. The explosion proof tank of claim 1, wherein: the side wall (1) is provided with a plurality of reinforcing blocks (4) in the outside, frame (3) cover is outside lateral wall (1) and set up on reinforcing block (4), just frame (3) simultaneously with lateral wall (1), reinforcing block (4) fixed welding.
3. The explosion proof tank of claim 2, wherein: the upper end face of the side frame (3) is higher than the upper end face of the side wall (1), a limiting frame (5) is arranged on the upper end face of the side wall (1) opposite to the inner side of the side frame (3), a sealing groove (6) is formed between the limiting frame (5) and the side frame (3), and a sealing strip (7) is arranged in the sealing groove (6).
4. The explosion proof tank of claim 2, wherein: the reinforcing block (4) is fixedly welded with the side wall (1).
5. The explosion proof tank of claim 1, wherein: the side wall (1) is formed by splicing a first splice plate (8) and a second splice plate (9); the first splice plate (8) is integrally bent to form a rectangular frame with a notch (81), the second splice plate (9) is correspondingly arranged at the notch (81), and two ends of the second splice plate (9) are fixedly welded with the first splice plate (8).
6. The processing method of the explosion-proof box is characterized by comprising the following steps of:
1. Selecting a first steel plate with the thickness of m, and cutting a lower frame (3) on the first steel plate, wherein the first steel plate cut from the inner side position of the frame (3) is used as a bottom plate (2);
2. Selecting a second steel plate with the thickness of n, and cutting a first splice plate (8) and a second splice plate (9) on the second steel plate, wherein n is less than m;
3. Bending the first splice plate (8) to enable the first splice plate (8) to form a rectangular frame matched with the inner contour of the frame (3), forming a notch (81) on one side surface of the rectangular frame, embedding the second splice plate (9) into the notch (81), and mutually splicing the first splice plate (8) and the second splice plate (9) together in a spot welding mode to form a side wall (1);
4. one end of the side wall (1) is embedded into the frame (3), and the side wall (1) and the frame (3) are spliced together in a spot welding mode;
5. the bottom plate (2) is spliced with the side wall (1), and the bottom plates (2) of the side wall (1) are mutually spliced together in a spot welding mode to form a box body;
6. carrying out full welding on the welding wire on the inner side and the outer side of the box body;
7. And (5) carrying out finish machining on the box body.
7. The processing method according to claim 6, wherein a plurality of reinforcing blocks (4) are arranged on the outer side of the side wall (1), and when the reinforcing blocks (4) are installed, the reinforcing blocks (4) are fixedly spliced with the side wall (1) and the frame (3) in a spot welding mode, and then welding wires are fully welded.
8. The processing method according to claim 6, wherein the upper end surface of the side frame (3) is higher than the upper end surface of the side wall (1), a limiting frame (5) is arranged on the upper end surface of the side wall (1) opposite to the inner side of the side frame (3), a sealing groove (6) is formed between the limiting frame (5) and the side frame (3), and a sealing strip (7) is arranged in the sealing groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311068830.3A CN116979397B (en) | 2023-08-24 | 2023-08-24 | Explosion-proof box and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311068830.3A CN116979397B (en) | 2023-08-24 | 2023-08-24 | Explosion-proof box and processing method thereof |
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| Publication Number | Publication Date |
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| CN116979397A CN116979397A (en) | 2023-10-31 |
| CN116979397B true CN116979397B (en) | 2024-07-26 |
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| CN202311068830.3A Active CN116979397B (en) | 2023-08-24 | 2023-08-24 | Explosion-proof box and processing method thereof |
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| CN119852910A (en) * | 2025-03-22 | 2025-04-18 | 浙江浙创中和防爆科技有限公司 | Frame type high-strength explosion-proof shell and processing method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN219203337U (en) * | 2022-02-21 | 2023-06-16 | 宁德时代新能源科技股份有限公司 | Battery and electricity utilization device |
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| CN101064416A (en) * | 2006-04-25 | 2007-10-31 | 上海程通机电厂 | Low-voltage distribution cabinet for controllable electric generating set |
| DE102006052723A1 (en) * | 2006-11-08 | 2008-05-15 | Cooper Crouse-Hinds Gmbh | casing |
| US8729388B2 (en) * | 2011-11-01 | 2014-05-20 | Hubbell Incorporated | Mounting member for an electrical box assembly |
| CN215418433U (en) * | 2021-06-08 | 2022-01-04 | 恒大恒驰新能源汽车研究院(上海)有限公司 | Power battery tray frame construction and battery box |
| CN215580202U (en) * | 2021-09-15 | 2022-01-18 | 上海富菱防爆仪表电器有限公司 | Integrated explosion-proof junction box |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN219203337U (en) * | 2022-02-21 | 2023-06-16 | 宁德时代新能源科技股份有限公司 | Battery and electricity utilization device |
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