Narrow runner welding partition plate and welding machining method thereof

Abstract

The invention discloses a narrow-runner welding partition plate and a welding machining method thereof.The narrow-runner welding partition plate comprises a blade disc and a side plate, the blade disc comprises a blade disc body, welding blades and non-welding blades, the welding blades and the non-welding blades are arranged on one end face of the blade disc body in the circumferential direction at intervals, and at least one non-welding blade is arranged between every two adjacent welding blades; the side plate is connected to the blade disc and covers the welded blades and the non-welded blades, the side plate comprises a side plate body and a welding groove formed in the side plate body, and the welding groove is matched with the welded blades. Through the structure that the welding blades and the non-welding blades are arranged on the blade disc at intervals and the welding grooves, corresponding to the welding blades, in the side plates are connected with the welding blades, the connection reliability of the side plates and the blade disc can be guaranteed, the number of the welding grooves needing to be formed in the side plates is reduced, and the influence of the welding grooves on the size and quality of the side plates is reduced; the rigidity of the side plate is guaranteed, deformation during welding is prevented, and the welding quality is further guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of baffles, and in particular to a narrow channel welding baffle and a welding processing method thereof. Background Art

[0002] The partition is used to separate the working fluid on the high-pressure side and the low-pressure side to ensure the correct flow of the fluid during compression and expansion. It plays a role in guiding the flow of the working fluid and can adjust the direction and speed of the airflow. The partition is generally composed of two parts: the side plate and the blade disk. The side plate and the blade disk can be connected by screws or welding. However, if the blades of the blade disk are thin, the thin blade handles and screws are too small to meet the connection requirements; in addition, if the flow channel of the partition is narrow, the welding rod cannot enter the flow channel, resulting in the inability to weld; especially when the above two situations exist at the same time, the partition is generally manufactured by electric spark as a whole, which leads to a long manufacturing cycle and high cost of the partition. Summary of the invention

[0003] In order to overcome at least one of the above disadvantages, the present invention provides a narrow channel welding partition and a welding method thereof. The purpose of the present invention can be achieved by adopting the following technical solutions:

[0004] A first aspect of the present invention provides a narrow flow channel welding baffle, comprising:

[0005] The blade disk comprises a blade disk body and welded blades and non-welded blades arranged at circumferential intervals on one end surface of the blade disk body, and at least one non-welded blade is arranged between two adjacent welded blades;

[0006] A side plate is connected to the blade disk and covers the welding blades and the non-welding blades. The side plate includes a side plate body and a welding groove provided on the side plate body. The welding groove is adapted to the welding blades.

[0007] In one possible implementation manner, the welding groove is an open groove with one end open, and a gap for welding is formed between the groove bottom of the welding groove and the welding blade;

[0008] One end of the non-welded blade abuts against the side plate body.

[0009] In one possible implementation, a gap is formed between the welding blade and the non-welding blade.

[0010] In one possible implementation manner, the welding grooves are arranged in a one-to-one correspondence with the welding blades, and the welding blades are located within the edge projection area of ​​the welding grooves.

[0011] In one possible implementation manner, a slot width of the welding slot at an end away from the welding blade is greater than a slot width of the welding slot at an end close to the welding blade.

[0012] In one possible implementation manner, the side plate body includes at least two annular areas, and the plurality of annular areas are sequentially sleeved from the inside to the outside, and the welding blades and the non-welding blades in the annular areas are both arranged at circumferential intervals.

[0013] In one possible implementation, the number of the non-welded blades is at least twice the number of the welded blades.

[0014] In one possible implementation manner, a first inner hole is provided on the side plate body, a second inner hole is provided on the blade disk body, and when the side plate cover is arranged on the blade disk, the first inner hole and the second inner hole are coaxially arranged.

[0015] In one possible implementation manner, the blade disk body is provided with an outer stop, and the side plate body is provided with an inner stop matched with the outer stop, so that the side plate cover is arranged on the blade disk.

[0016] In one possible implementation manner, a groove is formed on the end surface of the side plate body facing away from the blade disk.

[0017] A second aspect of the present invention provides a welding method, which is applied to any narrow channel welding partition in the first aspect, and the steps of the welding method include:

[0018] Align the side plate and the blade disc coaxially and place the side plate cover on the blade disc so that the welding grooves are aligned with the welding blades one by one;

[0019] The bottom of the welding groove is self-melted and welded to the welding blades as a whole by argon arc welding, and the welding groove is filled with solder by manual arc welding.

[0020] Beneficial technical effects of the present invention: According to the contents of the present disclosure, the narrow channel welding baffle is structured by spacing the welding blades and the non-welding blades on the blade disk, and welding grooves corresponding to the welding blades are arranged on the side panels. The welding blades are connected to the welding grooves by welding, thereby ensuring the reliability of the connection between the side panels and the blade disk, reducing the number of welding grooves that need to be opened on the side panels, reducing the influence of the welding grooves on the size and quality of the side panels, ensuring the rigidity of the side panels, preventing deformation during welding, and further ensuring the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In the accompanying drawings, the following are given by way of example and not limitation:

[0022] Figure 1 A schematic diagram of the overall structure at an angle is shown;

[0023] Figure 2 A schematic diagram of the overall structure from another angle is shown;

[0024] Figure 3 A cross-sectional view of the overall structure is shown;

[0025] Figure 4 A schematic diagram of the blade disk structure at an angle is shown;

[0026] Figure 5 A cross-sectional view of the blade disk structure is shown;

[0027] Figure 6 A schematic diagram of the side panel structure at an angle is shown;

[0028] Figure 7 A schematic diagram of the side panel structure from another angle is shown;

[0029] Figure 8 A schematic diagram of the side panel structure at another angle is shown;

[0030] Fig. 9 A schematic diagram of the side panel structure from another angle is shown;

[0031] Fig.10 A cross-sectional view of the side panel structure is shown;

[0032] Fig.11 A structural cross-sectional view of a welding groove and a welding blade is shown;

[0033] Fig.12 A structural cross-sectional view of the side plate body and the non-welded blades is shown.

[0034] In the figure:

[0035] 1. Side plate; 2. Blade disk;

[0036] 11. Side plate body; 12. Welding groove; 13. Internal stop; 14. Groove;

[0037] 21. Blade disc body; 22. Welded blades; 23. Non-welded blades; 24. External stop. DETAILED DESCRIPTION

[0038] In the following detailed disclosure, these embodiments are fully described with reference to the accompanying drawings. In order to make the technical scheme of the present invention more clear and specific to those skilled in the art, the implementation methods described below are not limited to this. The present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings.

[0039] In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance; the term "plurality" refers to two or more, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front” and “back” are based on the directions or positional relationships shown in the accompanying 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 unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore, cannot be understood as a limitation on the present invention.

[0041] The present invention provides a narrow flow channel welding partition, such as Figure 1-Figure 12 As shown, the narrow channel welding baffle includes a blade disk 2 and a side plate 1, the blade disk 2 includes a blade disk body 21 and welding blades 22 and non-welding blades 23 arranged on one end surface of the blade disk body 21 and circumferentially spaced, and at least one non-welding blade 23 is arranged between two adjacent welding blades 22; the side plate 1 is connected to the blade disk 2 and covers the welding blades 22 and the non-welding blades 23, the side plate 1 includes a side plate body 11 and a welding groove 12 opened on the side plate body 11, and the welding groove 12 is adapted to the welding blade 22.

[0042] Since the narrow channel welding baffle has a large number of blades and is limited by size, the thin blade handles and screws are too small to meet the handle and screw requirements. If all blades adopt a welded structure, it is necessary to open welding grooves 12 on the side panel 1 in the same number as the blades, which will weaken the rigidity of the side panel 1, and the processing of the welding grooves 12 will release the internal stress of the side panel 1 itself, ultimately affecting the size and quality of the processed side panel 1; further, if the rigidity of the side panel 1 is weakened, it will be difficult to align the side panel 1 and the blade disk 2 when splicing them, directly affecting the welding quality; and all blades need to be welded, the welding amount is large, and the rigidity of the side panel 1 is weakened, which is easy to cause deformation during the welding process, directly affecting the welding quality.

[0043] In view of this, the narrow flow channel welding baffle provided in the present embodiment has a structure in which the welding blades 22 and the non-welded blades 2 are arranged at intervals on the blade disk 2, and a welding groove 12 corresponding to the welding blade 22 is arranged on the side plate 1. The welding blade 22 is connected to the welding groove 12 by welding, which reduces the welding amount and reduces the internal stress of the side plate 1 itself caused by welding. It can greatly reduce the possibility of cracking of the side plate 1 due to welding, improve the welding performance of the side plate 1, and ensure the reliability of the connection between the side plate 1 and the blade disk 2, reduce the number of welding grooves 12 that need to be opened on the side plate 1, reduce the influence of the welding grooves 12 on the size and quality of the side plate 1, ensure the rigidity of the side plate 1, prevent deformation during welding, and further ensure the welding quality.

[0044] Among them, the narrow channel welding baffle provided in this embodiment is suitable for materials such as KMN and X12Cr13 steel.

[0045] In one possible implementation, Figure 6-Figure 11 As shown, the welding groove 12 is an open groove with one end open, and a gap for welding is formed between the groove bottom of the welding groove 12 and the welding blade 22.

[0046] First, argon arc welding is used between the welding groove 12 and the welding blade 22 to self-melt the groove bottom for bottom sealing welding without filling welding wire, and the side plate 1 and the blade disk 2 are welded into one.

[0047] Then, manual arc welding is used to fill the welding groove 12, and finally the grooved part is completely filled and welded to form a partition. The bottom is welded by argon arc welding, which is conducive to reducing weld defects and avoiding leaking welds and lack of weld meat. Filling the welding groove 12 with solder improves the reliability and weld quality of the connection between the blade disk 2 and the side plate 1, and further improves the overall performance of the partition.

[0048] The bottom thickness of the welding groove 12 is generally set within a range of 0.5 mm to 1.5 mm. The argon arc welding melts the bottom of the groove and deforms it toward the welding blade 22 until it is connected to the welding blade 22 .

[0049] In one possible implementation, Fig.12 As shown, one end of the non-welded blade 23 is in contact with the side plate body 11, and the groove corresponding to the non-welded blade 23 is not processed on the side plate body 11. By arranging the non-welded blade 23 that does not require welding, the non-welded blade 23 is inserted between the welded blades 22, which can also ensure that the fluid passes through the partition smoothly without eddy currents. This not only ensures the rigidity of the side plate 1, but also reduces the amount of welding, reduces costs, and ensures the quality of the partition.

[0050] In one possible implementation, Figure 1 and Figure 4As shown, a gap is formed between the welded blades 22 and the non-welded blades 23 to ensure that the fluid passes through the partition smoothly.

[0051] In one possible implementation manner, the welding grooves 12 and the welding blades 22 are arranged in a one-to-one correspondence, and the welding blades 22 are located within the edge projection area of ​​the welding grooves 12 .

[0052] The shape and number of the welding grooves 12 are arranged correspondingly to the welding blades 22 .

[0053] Among them, the bottom width of the welding groove 12 is adapted to the width of the welding blade 22, and the bottom width of the welding groove 12 is not less than the width of the welding blade 22, which is convenient for the self-melting of the groove bottom and the welding blade 22 to perform bottom welding and weld the side plate 1 and the blade disk 2 into one.

[0054] In one possible implementation, Fig.11 As shown, the width of the welding groove 12 at one end away from the welding blade 22 is greater than the width of the welding groove 12 at one end close to the welding blade 22 .

[0055] The angle between the inclined surfaces on both sides of the welding groove 12 is 45° to 50°, which facilitates the welding rod or welding gun to extend into the bottom of the welding groove 12, thereby reducing the difficulty of welding operation and improving welding quality.

[0056] Among them, the bottom width of the welding groove 12 is slightly larger than the width of the welding blade 22. In this embodiment, the width of the welding blade 22 is set to D, and the bottom width of the welding groove 12 is D+d, and the range of d is 0.3mm~0.7mm, which can meet the width requirements of the welding connection and ensure that the bottom of the welding groove 12 is fully in contact with the welding blade 22 after self-melting, which is beneficial to improving the welding quality.

[0057] It can be understood that the side plate body 11 includes an annular area, and the welding blades 22 and non-welding blades 23 in the annular area are arranged at circumferential intervals. The number of the annular areas can be one, two, three, or other integers.

[0058] Among them, Figure 1 and Figure 4 As shown, the side plate body 11 includes at least two annular areas, and the several annular areas are sequentially sleeved from the inside to the outside, and the welding blades 22 and non-welding blades 23 in the annular areas are arranged at intervals in the circumferential direction.

[0059] The partition provided in this embodiment includes two circles of inner and outer blades, that is, the side plate body 11 includes inner and outer two ring areas, and a plurality of welded blades 22 and a plurality of non-welded blades 23 are arranged in each ring area at circumferential intervals.

[0060] The welding grooves 12 corresponding to the welding blades 22 in different annular areas are staggered, that is, the welding grooves 12 of the inner and outer circles are staggered, and overlapping is not allowed.

[0061] It can be understood that the welding blades 22 and the non-welding blades 23 are arranged at intervals, and the number of the non-welding blades 23 is not less than that of the welding blades 22 .

[0062] The number of the welding blades 22 may be equal to the number of the non-welding blades 23 , that is, the blade arrangement structure is that the welding blades 22 and the non-welding blades 23 are arranged in sequence, so that there is a non-welding blade 23 between each adjacent two welding blades 22 .

[0063] In one possible embodiment, the number of non-welded blades 23 is at least twice the number of welded blades 22 .

[0064] The number of non-welded blades 23 may be twice the number of welded blades 22 , that is, the blade arrangement structure is that a welded blade 22 and two non-welded blades 23 are arranged in sequence, so that there are two non-welded blades 23 between two adjacent welded blades 22 .

[0065] The number of non-welded blades 23 may be three times the number of welded blades 22 , that is, the blade arrangement structure is a welded blade 22 and three non-welded blades 23 arranged in sequence, so that there are three non-welded blades 23 between two adjacent welded blades 22 .

[0066] It can be understood that the welding blades 22 and the non-welding blades 23 are evenly arranged along the circumferential direction. By adjusting the number of welding blades 22 and non-welding blades 23, the spacing between the welding blades 22 can be adjusted without changing the number of blades, that is, the number and spacing of the welding grooves 12 can be adjusted. Under the premise of ensuring the stability of the welding connection, the number of welding grooves 12 can be reduced to improve the rigidity and quality of the structure.

[0067] The specific arrangement of the welding blades 22 and the non-welding blades 23 may be specifically arranged according to the size and material requirements of the partition to meet different welding requirements.

[0068] In one possible implementation, Figure 1-Figure 12 As shown, a first inner hole is provided on the side plate body 11, and a second inner hole is provided on the blade disk body 21. When the side plate 1 is covered on the blade disk 2, the first inner hole and the second inner hole are coaxially arranged.

[0069] like Figure 2 and Figure 3 As shown, during the assembly process of the side plate 1 and the blade disk 2, the axes of the first inner hole and the second inner hole are aligned, that is, the first inner hole and the second inner hole are coaxially arranged.

[0070] In one possible implementation, Figure 1-Figure 12As shown, an outer stop 24 is provided on the blade disk body 21 , and an inner stop 13 matched with the outer stop 24 is provided on the side plate body 11 , so that the side plate 1 is covered on the blade disk 2 .

[0071] Among them, Figure 4 and Figure 5 As shown, the blade disk body 21 is provided with an annular outer stop 24, the outer stop 24 is located on the end surface of the blade disk body 21 facing the side plate 1, and the outer stop 24 is located on the outer peripheral side of the blade; Figure 6-Figure 10 As shown, an annular inner stop 13 is provided on the side plate body 11 . The inner stop 13 is located on the end surface of the side plate 1 facing the blade disk 2 . The inner stop 13 is located on the outer peripheral side of the welding groove 12 .

[0072] When the side plate 1 is covered on the blade disk 2 , the outer stop 24 is located on the outer peripheral side of the inner stop 13 , the inner diameter of the outer stop 24 matches the outer diameter of the inner stop 13 , and the thickness of the outer stop 24 matches the thickness of the inner stop 13 .

[0073] It can be understood that the side plate 1 and the blade disk 2 are positioned by the cooperation of the outer stop 24 and the inner stop 13 , which limit the blade disk 2 and the side plate 1 during the welding process to ensure the accuracy of the connection.

[0074] Among them, by setting the outer stop 24 and the inner stop 13 to abut against each other, the stability of the position between the side plate 1 and the blade disk 2 is improved, and a full circle of welding can be performed at the abutment between the outer stop 24 and the inner stop 13 to achieve fixation between the outer peripheral side of the side plate 1 and the blade disk 2.

[0075] In one possible implementation, Figure 6 As shown, a groove 14 is formed on the end surface of the side plate body 11 facing away from the blade disk 2 .

[0076] A groove 14 is provided on the side plate body 11 . The groove 14 may be annular and is used to reduce the thickness of a portion of the side plate body 11 and reduce the overall weight of the narrow channel welding partition.

[0077] The second aspect of the present invention, as Figure 1-Figure 12 As shown, a welding processing method is provided, which is applied to any narrow flow channel welding baffle in the first aspect, and the steps of the welding processing method include: coaxially aligning the side plate 1 and the blade disk 2 and covering the side plate 1 on the blade disk 2, so that the welding groove 12 and the welding blade 22 are aligned one by one; using argon arc welding to self-melt the groove bottom of the welding groove 12 and the welding blade 22 to weld them into one, and using manual arc welding to fill the welding groove 12 with solder.

[0078] The welding processing method for narrow channel welding baffles provided in this embodiment welds the welding blades 22 with the corresponding welding grooves 12 together, and the non-welding blades 23 between the welding blades 22 abut against the side plate 1, thereby reducing the welding amount, reducing the cost, reducing the number of welding grooves 12 that need to be opened on the side plate 1, reducing the influence of the welding grooves 12 on the size and quality of the side plate 1, ensuring the rigidity of the side plate 1, and greatly reducing the possibility of cracking of the side plate 1 due to welding. Filling the welding grooves 12 with solder improves the welding performance of the side plate 1, and can also ensure the reliability of the connection between the side plate 1 and the blade disk 2, prevent deformation during welding, and further ensure the welding quality.

[0079] The welding processing method for narrow flow channel welding baffles provided in the present embodiment welds the welding blades with the corresponding welding grooves together, and the non-welded blades between the welding blades are abutted against the side plates, thereby reducing the amount of welding, reducing costs, reducing the number of welding grooves that need to be opened on the side plates, reducing the impact of the welding grooves on the size and quality of the side plates, ensuring the rigidity of the side plates, and greatly reducing the possibility of cracking of the side plates due to welding. Solder is filled in the welding grooves to improve the welding performance of the side plates, and can also ensure the reliability of the connection between the side plates and the blade disks, prevent deformation during welding, and further ensure the welding quality.

[0080] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0081] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0082] In view of the above detailed description, these and other changes can be made to these embodiments, and this written description includes the best mode embodiments to disclose the present invention. The scope of the patent obtained by the present invention is defined by the claims, which are not limited by the present disclosure, and the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field within the scope disclosed by the present invention, according to the technical solution and its conception of the present invention, is equivalent to or changes, and all are within the protection scope of the present invention.

Claims

1. A narrow channel welding baffle, characterized in that: include: A blade disk (2), the blade disk (2) comprising a blade disk body (21) and welded blades (22) and non-welded blades (23) arranged on one end surface of the blade disk body (21) and spaced apart in the circumferential direction, wherein at least one non-welded blade (23) is arranged between two adjacent welded blades (22); A side plate (1), the side plate (1) is connected to the blade disk (2) and covers the welding blade (22) and the non-welding blade (23), the side plate (1) comprises a side plate body (11) and a welding groove (12) provided on the side plate body (11), the welding groove (12) being adapted to the welding blade (22).

2. The narrow channel welding baffle according to claim 1, characterized in that: The welding groove (12) is an open groove with one end open, and a gap for welding is formed between the groove bottom of the welding groove (12) and the welding blade (22); One end of the non-welded blade (23) is in contact with the side plate body (11).

3. The narrow channel welding baffle according to claim 1, characterized in that: A gap is formed between the welding blade (22) and the non-welding blade (23).

4. The narrow channel welding baffle according to claim 2, characterized in that: The welding grooves (12) and the welding blades (22) are arranged in a one-to-one correspondence, and the welding blades (22) are located within the edge projection area of ​​the welding grooves (12).

5. The narrow channel welding baffle according to claim 4, characterized in that: The width of the notch of the welding groove (12) at one end away from the welding blade (22) is greater than the width of the notch of the welding groove (12) at one end close to the welding blade (22).

6. The narrow channel welding baffle according to claim 1, characterized in that: The side plate body (11) comprises at least two annular areas, and the plurality of annular areas are sleeved in sequence from the inside to the outside, and the welding blades (22) and the non-welding blades (23) in the annular areas are arranged at circumferential intervals.

7. The narrow channel welding baffle according to claim 1 or 6, characterized in that: The number of the non-welded blades (23) is at least twice the number of the welded blades (22).

8. The narrow channel welding baffle according to claim 1, characterized in that: The side plate body (11) is provided with a first inner hole, the blade disc body (21) is provided with a second inner hole, and when the side plate (1) is covered on the blade disc (2), the first inner hole and the second inner hole are coaxially arranged.

9. The narrow channel welding baffle according to claim 8, characterized in that: The blade disk body (21) is provided with an outer stop (24), and the side plate body (11) is provided with an inner stop (13) matched with the outer stop (24), so that the side plate (1) is covered on the blade disk (2).

10. A welding method, characterized in that: Applied to the narrow channel welding partition according to any one of claims 1 to 9, the welding processing method comprises the following steps: Align the side plate (1) and the blade disk (2) coaxially and cover the side plate (1) on the blade disk (2) so that the welding grooves (12) and the welding blades (22) are aligned one by one; Argon arc welding is used to self-melt the bottom of the welding groove (12) and weld the welding blade (22) into one body, and manual arc welding is used to fill the welding groove (12) with solder.

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