Surface defect cleaning device for large forgings

Abstract

The utility model aims to provide a large forge piece surface defect cleaning device which solves the problem of large forge piece surface defect repairing and comprises a cart, a repairing assembly and a heat insulation plate, the heat insulation plate is arranged on the cart, the repairing assembly comprises a welding machine, a fuel gas source and a combustion-supporting pipe, the fuel gas source is connected with the combustion-supporting pipe through a gas pipe, and the gas pipe is connected with the welding machine. The welding machine is electrically connected with the combustion-supporting pipe; the heat insulation plate is located between the repairing assembly and the large forge piece, and the welding machine is externally connected with a lapping wire. Due to the fact that the heat insulation plate is located between the large forge piece and the repairing assembly, the heat insulation plate blocks the high temperature of the large forge piece, the combustion-supporting pipe extends through the window to be in butt joint with the large forge piece through the window in the heat insulation plate, ignition is generated, gas in the combustion-supporting pipe is combusted, and the large forge piece is repaired. And flames are aligned with defects on the large forgings, so that the surface defects of the large forgings are cleaned, and the problem of repairing the surface defects of the large forgings is solved.

Description

Technical Field

[0001] The utility model relates to the field of large forging production assistance, in particular to a large forging surface defect cleaning device. Background Art

[0002] Large forgings are often used in heavy machine repair equipment, power generation equipment in the power industry (nuclear power, hydropower, thermal power), shipbuilding, locomotives, petroleum, chemical industry, military industry and aerospace, etc. They have the characteristics of wide application fields and large single piece weight.

[0003] The common process flow of large forgings is: smelting-casting-forging-heat treatment-machining.

[0004] The smelted steel ingot is heated to 1150℃-1250℃ and forged into the required part size through large forging equipment. During the forging process, cracks, peeling and other defects often occur. Conventionally, the blank can only be lathe-processed or ground after cooling, which wastes energy and slows down the production pace. In order to ensure the safety of personnel, under the necessary protective measures, a heat-insulating car and an online oxygen blowing device are designed and manufactured to clean crack defects online and improve production efficiency.

[0005] How to repair the above defects is the problem to be solved. Utility Model Content

[0006] The utility model aims to provide a large forging surface defect cleaning device, which solves the problem of repairing large forging surface defects.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] The utility model provides a large forging surface defect cleaning device, comprising a trolley, a repair component and a heat insulation board, wherein the heat insulation board is arranged on the trolley, and is characterized in that:

[0009] The repair assembly includes a welder, a gas source and a combustion-supporting tube, wherein the gas source is connected to the combustion-supporting tube via a gas pipe, and the welder is electrically connected to the combustion-supporting tube;

[0010] The heat shield is located between the repair assembly and the large forging, and the welding machine is externally connected to a ground wire;

[0011] The heat insulation board is provided with a window, and the window is large enough for the combustion-supporting tube to pass through.

[0012] Optionally, the heat insulation board is tiltedly arranged on the trolley, with the bottom end of the heat insulation board close to the large forging and the top end of the heat insulation board away from the large forging.

[0013] Furthermore, a first support rod and a second support rod are symmetrically arranged on both sides of the cart, and the first support rod and the second support rod are respectively connected to the frame.

[0014] Optionally, a frame is provided on the cart, and the heat insulation board is laid flat on the frame.

[0015] Furthermore, the frame is hingedly provided with a cover plate, and the cover plate is used to open and close the plurality of windows.

[0016] Furthermore, the frame has a plurality of grids built therein, and the windows are arranged corresponding to the grids.

[0017] Optionally, the cart includes a left wheel, a right wheel and an intermediate shaft, the left wheel and the right wheel are rotatably arranged on both sides of the intermediate shaft respectively, a first cross bar and a second cross bar are arranged on the intermediate shaft at intervals, and the frame is arranged on the first cross bar and the second cross bar.

[0018] Furthermore, the frame is arranged at the extended ends of the first crossbar and the second crossbar, and a first auxiliary wheel and a second auxiliary wheel are arranged at an interval at the bottom of the frame.

[0019] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0020] The utility model discloses a device for cleaning surface defects of large forgings. As a heat insulation plate is located between the large forgings and the repairing assembly, the heat insulation plate blocks the high temperature of the large forgings. Through the window on the heat insulation plate, a combustion-supporting tube extends out of the window to butt against the large forgings, ignition is generated, gas in the combustion-supporting tube burns, and the flame is aimed at the defects on the large forgings, thereby cleaning the surface defects of the large forgings, thus solving the problem of repairing the surface defects of the large forgings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0022] Figure 1 It is a structural view of a large forging surface defect cleaning device according to a preferred embodiment of the utility model;

[0023] Figure 2 yes Figure 1 Rear view shown.

[0024] The reference numerals are described as follows:

[0025] 1. Cart; 2. Repair components; 3. Heat shield; 8. Large forgings; 11. First support rod; 12. Second support rod; 13. Left wheel; 14. Right wheel; 15. Intermediate shaft; 17. First cross bar; 18. Second cross bar; 19. First auxiliary wheel; 20. Second auxiliary wheel; 21. Welding machine; 22. Gas source; 23. Combustion-supporting pipe; 24. Ground wire; 31. Window; 32. Frame; 33. Cover; 34. Grid. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0029] like Figure 1 and Figure 2 As shown, it includes a trolley 1, a repair component 2 and a heat insulation board 3. The heat insulation board 3 is arranged on the trolley 1. When the trolley 1 is moved manually, the heat insulation board 3 moves accordingly. The heat insulation board 3 is made of 1Cr16Ni35 steel plate, which is heat-resistant stainless steel and has good oxidation resistance and corrosion resistance.

[0030] The repair component 2 includes a welding machine 21, a gas source 22 and a combustion-supporting tube 23. The gas source 22 is connected to the combustion-supporting tube 23 via an air pipe 26. The gas source 22 provides oxygen. The combustion-supporting tube 23 is a hollow tube. The gas source 22 supplies oxygen to the combustion-supporting tube 23 via the air pipe 26. The air pipe 26 is made of a rubber hose and has the advantage of being explosion-proof. The welding machine 21 is electrically connected to the combustion-supporting tube 23. The welding machine 21 is connected to the combustion-supporting tube 23 via an electric cable 25. The combustion-supporting tube 23 is made of a seamless steel pipe.

[0031] The heat insulation board 3 is located between the repair component 2 and the large forging 8. The heat insulation board 3 isolates the repair component 2 from the large forging 8. The repair component 2 is operated by the operator, and the operator avoids high-temperature operation, eliminating safety hazards. The welding machine 21 is externally connected to the ground wire 24.

[0032] A window 31 is provided on the heat insulation board 3 . The window 31 is large enough for the combustion-supporting tube 23 to pass through. The combustion-supporting tube 23 can pass through the window 31 .

[0033] When in use, the welding machine 21 is turned on normally, the combustion-supporting tube 23 is energized, the gas source 22 provides oxygen to the combustion-supporting tube 23, the ground wire 24 is connected to the circuit of the large forging 8, the combustion-supporting tube 23 passes through the window 31, and the open end of the combustion-supporting tube 23 abuts against the large forging 8. At this time, a circuit is formed between the combustion-supporting tube 23 and the large forging 8, sparks are generated, and the open end of the combustion-supporting tube 23 and the oxygen burn at the same time. The combustion-supporting tube 23 retreats appropriately, and the flame sprays out from the combustion-supporting tube 23. The flame is aimed at the defects on the large forging 8 and burns, so that the defects on the large forging 8 are repaired, and the defects on the large forging 8 are cleared.

[0034] The heat insulation board 3 is tiltedly arranged on the cart 1 , and forms an angle with the upper surface of the cart 1 . The bottom end of the heat insulation board 3 is close to the large forging 8 , and the top end of the heat insulation board 3 is far away from the large forging 8 .

[0035] A frame 32 is obliquely arranged on the trolley 1 . The frame 32 is formed by welding square tubes. The heat insulation board 3 is laid flat on the frame 32 . The frame 32 is arranged opposite to the large forging 8 .

[0036] The first support rod 11 and the second support rod 12 are symmetrically arranged on both sides of the cart 1 . The first support rod 11 and the second support rod 12 are respectively connected to the frame 32 , so that the inclined frame 32 is supported by the first support rod 11 and the second support rod 12 .

[0037] Furthermore, the area of ​​the heat shield 3 is larger than the area of ​​the frame 32 , so as to prevent the frame 32 and the cart 1 from being directly aligned with the large forging 8 .

[0038] The frame 32 is hingedly provided with a cover plate 33, which is used to open and close the window 31. The shape of the cover plate 33 matches the shape of the window 31. When repair is not needed, the cover plate 33 is covered on the window 31. When repair is needed, the cover plate 33 is rotated to open the window 31. The number of cover plates 33 is consistent with the number of windows 31.

[0039] The frame 32 has a plurality of grids 34 built therein, and the plurality of windows 31 are arranged corresponding to the grids 34 and have matching shapes.

[0040] The cart 1 includes a left wheel 13, a right wheel 14 and an intermediate shaft 15. The left wheel 13 and the right wheel 14 are rotatably arranged on both sides of the intermediate shaft 15 respectively. A first cross bar 17 and a second cross bar 18 are arranged on the intermediate shaft 15 in parallel and at a distance from each other. The first cross bar 17 and the second cross bar 18 are located between the left wheel 13 and the right wheel 14. A frame 32 is arranged on the first cross bar 17 and the second cross bar 18. The first cross bar 17 and the second cross bar 18 are arranged by round tube welding, and the frame 32 is welded to the first cross bar 17 and the second cross bar 18.

[0041] The frame 32 is disposed at the extended ends of the first cross bar 17 and the second cross bar 18 . The frame 32 is disposed on one side of the first cross bar 17 and the second cross bar 18 , and the other side is used for operators to push or pull the first cross bar 17 and the second cross bar 18 .

[0042] The first auxiliary wheel 19 and the second auxiliary wheel 20 are arranged at intervals at the bottom of the frame 32, so that the cart 1 has four wheels and can maintain stability. The first auxiliary wheel 19 and the second auxiliary wheel 20 are both universal wheels. At the same time, the heat insulation board 3 can block the heat emitted from the large forging 8.

[0043] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A large forging surface defect cleaning device, comprising a trolley (1), a repair assembly (2) and a heat shield (3), wherein the heat shield (3) is arranged on the trolley (1), and is characterized in that: The repair assembly (2) comprises a welding machine (21), a gas source (22) and a combustion-supporting tube (23); the gas source (22) and the combustion-supporting tube (23) are connected via a gas pipe, and the welding machine (21) and the combustion-supporting tube (23) are electrically connected; The heat insulation plate (3) is located between the repair component (2) and the large forging, and the welding machine (21) is externally connected to a ground wire (24); The heat insulation board (3) is provided with a window (31), and the window (31) is large enough for the combustion-supporting tube (23) to pass through.

2. The large forging surface defect cleaning device according to claim 1 is characterized in that: The heat insulation board (3) is arranged on the trolley (1) at an angle, the bottom end of the heat insulation board (3) is close to the large forging, and the top end of the heat insulation board (3) is far away from the large forging.

3. The large forging surface defect cleaning device according to claim 2 is characterized in that: The cart (1) is provided with a frame (32), and the heat insulation board (3) is laid flat on the frame (32).

4. The large forging surface defect cleaning device according to claim 3 is characterized in that: The cart (1) is symmetrically provided with a first support rod (11) and a second support rod (12) on both sides, and the first support rod (11) and the second support rod (12) are respectively connected to the frame (32).

5. The large forging surface defect cleaning device according to claim 4 is characterized in that: A cover plate (33) is hingedly provided on the frame (32), and the cover plate (33) is used to open and close the plurality of windows (31).

6. The large forging surface defect cleaning device according to claim 5 is characterized in that: The frame (32) has a plurality of grids (34) built therein, and the window (31) is arranged corresponding to the grids (34).

7. The large forging surface defect cleaning device according to claim 6 is characterized in that: The cart (1) comprises a left wheel (13), a right wheel (14) and an intermediate shaft (15); the left wheel (13) and the right wheel (14) are rotatably arranged on both sides of the intermediate shaft (15), respectively; a first cross bar (17) and a second cross bar (18) are arranged on the intermediate shaft (15) in parallel and at a distance from each other; and the frame (32) is arranged on the first cross bar (17) and the second cross bar (18).

8. The large forging surface defect cleaning device according to claim 7 is characterized in that: The frame (32) is arranged at the extended ends of the first crossbar (17) and the second crossbar (18), and a first auxiliary wheel (19) and a second auxiliary wheel (20) are arranged at a distance from each other at the bottom of the frame (32).

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