Rigid supporting structure for central case welding

Abstract

The utility model provides a rigid supporting structure for central case welding, comprising a bottom plate for supporting a central case; the multiple first limiting pieces are arranged on the bottom plate, the multiple first limiting pieces are distributed in the radial direction of the axis of the central machine shell at intervals, and the first limiting pieces are located on one side of the central machine shell; the first limiting piece comprises a first limiting rod, a first supporting part and a second supporting part, and the first supporting part and the second supporting part are arranged at intervals in the length direction of the first limiting rod; the first limiting piece and the second limiting piece are installed on the bottom plate and located on the two sides of the central shell, the central shell can be fixed, and meanwhile the inner side and the outer side of the flange of the outer shell and the inner side and the outer side of the annular opening of the inner shell can be synchronously supported and limited. The probability of deformation between the outer shell and the inner shell after welding is reduced, the assembly efficiency of the compressor after welding is improved, and the quality of the compressor is also improved.

Description

Technical Field

[0001] The present application belongs to the field of compressor processing technology, and specifically relates to a rigid support structure for central casing welding. Background Art

[0002] The compressor as a whole is composed of multiple sections of central casing connected to each other. Each section of the central casing includes an outer shell, an inner shell and multiple stationary blades connected between the outer shell and the inner shell. When the central shells of each section of the compressor are disassembled and inspected, defects in the weld fusion line between the stationary blades and the outer shell or the inner shell will be found, affecting the safe operation of the entire wind tunnel unit. The fusion line defects of each stationary blade must be handled by welding repair. If the upper and lower casings are directly cleaned and welded, it is easy to cause deformation of the casing after welding, affecting the overall quality of the compressor. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] In order to solve the above problems, the present application provides a rigid support structure for welding a central housing, comprising:

[0005] A bottom plate, used to support the central casing;

[0006] A first limiting member, wherein a plurality of the first limiting members are disposed on the bottom plate, the plurality of the first limiting members are radially spaced along the axis of the central housing, and the first limiting member is located on one side of the central housing;

[0007] The first limiting member includes a first limiting rod, a first supporting portion and a second supporting portion, wherein the first supporting portion and the second supporting portion are spaced apart along the length direction of the first limiting rod;

[0008] A second limiting member, wherein a plurality of the second limiting members are disposed on the bottom plate, the plurality of the second limiting members are radially spaced along the central axis, and the second limiting member is located on a side of the central housing away from the first limiting member;

[0009] The second limiting member includes: a second limiting rod, a third supporting portion and a fourth supporting portion;

[0010] The second limiting rod is arranged on the bottom plate, and the third supporting portion and the fourth supporting portion are arranged at intervals along the length direction of the second limiting rod.

[0011] Optionally, the first supporting portion includes: a first limiting block and a second limiting block;

[0012] The first limiting block and the second limiting block are spaced apart and arranged on the first limiting rod.

[0013] Optionally, the second supporting portion includes: a first connecting plate, a third limiting block and a fourth limiting block;

[0014] The first connecting plate is arranged on the first limiting rod, and the third limiting block and the fourth limiting block are arranged on the first connecting plate at intervals.

[0015] Optionally, a first connecting member is provided between the first connecting plate and the central casing.

[0016] Optionally, the third supporting portion includes: a fifth limiting block and a sixth limiting block;

[0017] The fifth limiting block and the sixth limiting block are spaced apart and arranged on the second limiting rod.

[0018] Optionally, the fourth supporting portion includes: a second connecting plate and a seventh limiting block;

[0019] The second connecting plate and the seventh limiting block are spaced apart and arranged on the second limiting rod, and a second connecting member is arranged between the second connecting plate and the central housing.

[0020] Optionally, it further includes a first fixing plate, the first fixing plate is arranged on the bottom plate, and the first limiting member is arranged on the first fixing plate.

[0021] Optionally, a second fixing plate is further included, wherein the second fixing plate is arranged on a side of the bottom plate away from the first fixing plate, and the second limiting member is arranged on the second fixing plate.

[0022] Optionally, the bottom plate is symmetrically provided with first positioning plates along its length direction, and both sides of the first positioning plates protrude outward to form first limiting protrusions.

[0023] Optionally, the bottom plate is symmetrically provided with second positioning plates along its length direction, the second positioning plates are located outside the first positioning plate, and both sides of the second positioning plates protrude outward to form second limiting protrusions.

[0024] Beneficial effects

[0025] A rigid support structure for central casing welding provided in an embodiment of the present invention is installed on the bottom plate through a first limit member and a second limit member and is located on both sides of the central shell. It can fix the central shell while also synchronously supporting and limiting the inner and outer sides of the outer shell flange and the inner and outer sides of the inner shell ring, thereby reducing the probability of deformation between the outer shell and the inner shell after welding, improving the assembly efficiency of the compressor after welding, and also improving the quality of the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1This is a structural diagram of the rigid support structure for welding the central casing of the utility model;

[0027] Figure 2 This is a side structural diagram of the rigid support structure for welding the central casing of the utility model;

[0028] Figure 3 The utility model is a rigid support structure for welding the central housing Figure 2 A partial enlarged structural diagram in the middle;

[0029] Figure 4 The utility model is a rigid support structure for welding the central housing Figure 2 A partial enlarged structural diagram of point B in the middle.

[0030] The reference numerals indicate:

[0031] 1. Bottom plate; 2. First limiting member; 3. First limiting rod; 4. First supporting portion; 5. Second supporting portion; 6. Second limiting member; 7. Second limiting rod; 8. Third supporting portion; 9. Fourth supporting portion; 10. First limiting block; 11. Second limiting block; 12. First connecting plate; 13. Third limiting block; 14. Fourth limiting block; 15. Fifth limiting block; 16. Sixth limiting block; 17. Second connecting plate; 18. Seventh limiting block; 19. First fixing plate; 20. Second fixing plate; 21. First positioning plate; 22. Second positioning plate. DETAILED DESCRIPTION

[0032] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0034] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0036] See also Figure 1-4 As shown, according to an embodiment of the present application, a rigid support structure for welding a central housing is provided, comprising:

[0037] Base plate 1, used to support the central housing;

[0038] A first limiting member 2, wherein a plurality of the first limiting members 2 are provided on the base plate 1, and the plurality of the first limiting members 2 are radially spaced and distributed along the axis of the central housing, and the first limiting members 2 are located on one side of the central housing;

[0039] The first limiting member 2 includes a first limiting rod 3, a first supporting portion 4 and a second supporting portion 5, and the first supporting portion 4 and the second supporting portion 5 are spaced apart along the length direction of the first limiting rod 3;

[0040] A second limiting member 6, wherein a plurality of the second limiting members 6 are provided on the bottom plate 1, and the plurality of the second limiting members 6 are radially spaced apart along the central axis, and the second limiting member is located on a side of the central housing away from the first limiting member 2;

[0041] The second limiting member 6 includes: a second limiting rod 7, a third supporting portion 8 and a fourth supporting portion 9;

[0042] The second limiting rod 7 is disposed on the bottom plate 1 , and the third supporting portion 8 and the fourth supporting portion 9 are spaced apart along the length direction of the second limiting rod 7 .

[0043] The existing compressor is assembled from multiple central casings. Each section of the central casing includes an outer casing, an inner casing, and multiple stationary blades connected between the outer casing and the inner casing. Since each outer casing is connected and assembled to each other, flanges are installed on both sides of the outer casing on each central casing. In order to further improve the sealing performance of the connection between the two central casings, the flange on the front side of the outer casing has an annular protrusion, and the flange on the rear side of the outer casing has an annular groove, so that a stronger seal can be achieved after installation. When the central casing is disassembled for inspection, it will be found that there is a defect in the weld fusion line between the stationary blades and the outer casing or the inner casing. The weld fusion line needs to be re-welded. At this time, a support structure is needed to support the front and back sides of the central casing. The rigid support structure for welding the central casing in this application can support both sides of the central casing while also supporting the inner and outer sides of the ring openings of the outer casing and the inner casing of the central casing, thereby reducing the probability of deformation after welding, improving the quality of the central casing after welding, and facilitating subsequent assembly.

[0044] Specifically, the bottom plate 1 is used to support the bottom of the central shell, and the support is more stable. By welding the first limit piece 2 to the bottom plate 1, the first limit rod 3 is vertically located on the rear side of the central shell, and the first support part 4 on the first limit rod 3 is used to limit and support the inner and outer sides of the inner shell ring opening on the rear side of the central shell, and the second support part 5 can limit and support the inner and outer sides of the flange of the outer shell on the rear side of the central shell, thereby supporting the outer shell and the inner shell ring opening on the rear side of the central shell; the second limit piece 6 is welded to the bottom plate 1, and the second limit rod 7 is vertically located on the front side of the central shell, and the third support part 8 on the second limit rod 7 is used to limit and support the inner and outer sides of the inner shell ring opening on the front side of the central shell, and the fourth support part 9 is used to limit and support the inner and outer sides of the flange of the outer shell on the front side of the central shell; the support stability is stronger, and by synchronously supporting the inner and outer sides of the outer shell flange and the inner and outer sides of the inner shell ring opening, the probability of deformation between the outer shell and the inner shell after welding is reduced, the assembly efficiency of the compressor after welding is improved, and the quality of the compressor is also improved.

[0045] Among them, there are multiple first limiting members 2, and the multiple first limiting members 2 are distributed at intervals along the radial direction of the axis of the central casing, which can achieve fixed support for one side of the central casing from multiple positions, improve the support strength, and reduce the probability of deformation during welding.

[0046] Among them, there are multiple second limiting members 6, and the multiple second limiting members 6 are distributed radially along the axis of the central casing, which can achieve fixed support for the other side of the central casing from multiple positions, improve the support strength, and reduce the probability of welding deformation.

[0047] Among them, the installation positions of the first limiter 2 and the second limiter 6 correspond to each other, that is, the first limiter 2 and the second limiter 6 are installed at the same position on both sides of the central casing, which can improve the support strength at the same position and avoid the probability of deformation during welding.

[0048] The first support portion 4 includes: a first limiting block 10 and a second limiting block 11;

[0049] The first limiting block 10 and the second limiting block 11 are spaced apart and arranged on the first limiting rod.

[0050] Specifically, when supporting the inner shell on the rear side of the central shell, the first limit block 10 and the second limit block 11 are both installed on the first limit rod 3. The first limit block 10 is installed on the first limit rod 3 and its bottom is in contact with the upper side of the ring mouth of the inner shell. The second limit block 11 is installed on the first limit rod 3 and its top is in contact with the lower side of the ring mouth of the inner shell. The first limit block 10 and the second limit block 11 are installed on the first limit rod 3 before welding to achieve limiting support for the ring mouth of the inner shell and reduce the probability of deformation during welding.

[0051] Among them, the first limiting block 10 and the second limiting block 11 can be installed on the first limiting rod 3 by bolts, and can also be installed on the first limiting rod 3 by welding. Connecting by bolts facilitates disassembly after use and can also achieve recycling.

[0052] The second supporting portion 5 includes: a first connecting plate 12, a third limiting block 13 and a fourth limiting block 14;

[0053] The first connecting plate 12 is disposed on the first limiting rod 3 , and the third limiting block 13 and the fourth limiting block 14 are spaced apart and disposed on the first connecting plate 12 .

[0054] A first connecting member is provided between the first connecting plate 12 and the central housing.

[0055] Specifically, when supporting the outer shell on the rear side of the central shell, since there is an annular groove on the flange on the rear side of the outer shell, the first connecting plate 12 can directly contact the side of the flange, and the third limit block 13 is installed on the upper side of the first connecting plate 12, and its bottom contacts the top of the flange, and the top of the fourth limit block 14 contacts the bottom of the flange; the third limit block 13 and the fourth limit block 14 are installed on the first limit rod 3 before welding to achieve limiting support for the outer shell and the flange, reducing the probability of deformation during welding.

[0056] Among them, the first connecting plate 12 is provided with a mounting hole, and the flange is provided with a screw hole. The first connecting plate 12 can be connected to the flange through the first connection, further improving the supporting and fixing performance of the flange and the outer shell and the connection stability performance.

[0057] Wherein, the first connecting member is a bolt.

[0058] Among them, the third limit block 13 and the fourth limit block 14 can be installed on the first connecting plate 12 by bolt connection or by welding. The bolt connection is convenient for disassembly after use and can also be recycled.

[0059] The third support portion 8 includes: a fifth limiting block 15 and a sixth limiting block 16;

[0060] The fifth limiting block 15 and the sixth limiting block 16 are arranged on the second limiting rod 7 at intervals.

[0061] Specifically, when fixing the inner shell on the front side of the central shell, the fifth limit block 15 and the sixth limit block 16 are both installed on the second limit rod 7, the fifth limit block 15 is installed on the second limit rod 7 and its bottom is in contact with the upper side of the ring opening of the inner shell, and the sixth limit block 16 is installed on the second limit rod 7 and its top is in contact with the lower side of the ring opening of the inner shell; the fifth limit block 15 and the sixth limit block 16 are installed on the second limit rod 7 before welding to achieve limiting support for the ring opening of the inner shell and reduce the probability of deformation during welding.

[0062] Among them, the fifth limiting block 15 and the sixth limiting block 16 can be installed on the second limiting rod 7 by bolt connection, and can also be installed on the second limiting rod 7 by welding. The bolt connection facilitates disassembly after use and can also achieve recycling.

[0063] The fourth supporting portion 9 includes: a second connecting plate 17 and a seventh limiting block 18;

[0064] The second connecting plate 17 and the seventh limiting block 18 are spaced apart and arranged on the second limiting rod 7 . A second connecting member is provided between the second connecting plate 17 and the central housing.

[0065] Specifically, when fixing the outer shell on the front side of the central shell, there is an annular protrusion on the flange on the front side of the outer shell. Therefore, it can directly contact the side of the flange through the first connecting plate 12. The bottom of the first connecting plate 12 is located on the upper side of the annular protrusion. The seventh limit block 18 is installed on the second connecting rod, and its top is in contact with the bottom of the annular protrusion; the second connecting plate 17 and the seventh limit block 18 are installed on the second limit rod 7 before welding to achieve limiting support for the outer shell and the flange, reducing the chance of deformation during welding.

[0066] Among them, the second connecting plate 17 is provided with a mounting hole, and the flange is provided with a screw hole. The second connecting plate 17 can be connected to the flange through a second connecting piece, further improving the supporting and fixing performance and connection performance of the flange and the outer shell.

[0067] Wherein, the second connecting member is a bolt.

[0068] Wherein, the seventh limiting block 18 can be installed on the second limiting rod 7 by bolt connection mode, and can also be installed on the second limiting rod 7 by welding mode. The disassembly after use is convenient by bolt connection mode, and recycling can also be achieved.

[0069] It also includes a first fixing plate 19 , which is disposed on the bottom plate 1 , and the first limiting member 2 is disposed on the first fixing plate 19 .

[0070] Specifically, the first fixing plate 19 is vertically welded on the bottom plate 1. The first fixing plate 19 is used to connect and fix the first limiting member 2. The first fixing plate 19 can be used for radial installation of multiple first limiting members 2 to achieve fixation of the central shell from different angles on one side.

[0071] It also includes a second fixing plate 20 , which is disposed on a side of the bottom plate 1 away from the first fixing plate 19 , and the second limiting member 6 is disposed on the second fixing plate 20 .

[0072] Specifically, the second fixing plate 20 is vertically welded to the base plate 1 and is used to connect and secure the second stopper 6. The second fixing plate 20 can accommodate multiple second stoppers 6 for radial installation, enabling the central housing to be secured from different angles on the other side. Thus, both sides of the central housing are supported and secured.

[0073] The bottom plate 1 is symmetrically provided with first positioning plates 21 along its length direction, and both sides of the first positioning plates 21 protrude outward to form first limiting protrusions.

[0074] Specifically, there are two first positioning plates 21, which are symmetrically installed on the base plate 1. There are two first limiting protrusions on both sides of the top of the first positioning plate 21. After the central shell is placed on the base plate 1, the bottom of the inner shell of the central shell is placed between the first limiting protrusions of the first positioning plate 21, which can achieve limiting fixation of the bottom of the inner shell, improve the fixing stability, and reduce the chance of movement.

[0075] The first positioning plate 21 can be fixed to the base plate 1 by bolts or by welding, and the choice can be made according to the actual specific use requirements.

[0076] The bottom plate 1 is symmetrically provided with second positioning plates 22 along its length direction. The second positioning plates 22 are located outside the first positioning plates 21 . Both sides of the second positioning plates 22 protrude outward to form second limiting protrusions.

[0077] Specifically, there are two second positioning plates 22, which are symmetrically installed on the base plate 1. There are two second limiting protrusions on both sides of the second positioning plate 22. After the central shell is placed on the base plate 1, the bottom of the outer shell of the central shell is placed between the second limiting protrusions of the second positioning plate 22, which can achieve limiting fixation of the bottom of the outer shell, improve the fixing stability, and reduce the chance of movement.

[0078] The second positioning plate 22 can be fixed to the base plate 1 by bolts or by welding, and the choice can be made according to the actual specific use requirements.

[0079] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above are merely preferred embodiments of the present application. It should be noted that those skilled in the art may make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A rigid support structure for central housing welding, characterized in that: include: A bottom plate (1) for supporting the central housing; A first limiting member (2), wherein a plurality of the first limiting members (2) are arranged on the bottom plate (1), the plurality of the first limiting members (2) are radially spaced and distributed along the axis of the central housing, and the first limiting member (2) is located on one side of the central housing; The first limiting member (2) comprises a first limiting rod (3), a first supporting portion (4) and a second supporting portion (5), wherein the first supporting portion (4) and the second supporting portion (5) are arranged at intervals along the length direction of the first limiting rod (3); A second limiting member (6), wherein a plurality of the second limiting members (6) are arranged on the bottom plate (1), the plurality of the second limiting members (6) are radially spaced and distributed along the central axis, and the second limiting member is located on a side of the central housing away from the first limiting member (2); The second limiting member (6) comprises: a second limiting rod (7), a third supporting portion (8) and a fourth supporting portion (9); The second limiting rod (7) is arranged on the bottom plate (1), and the third supporting portion (8) and the fourth supporting portion (9) are arranged at intervals along the length direction of the second limiting rod (7).

2. The rigid support structure for central housing welding according to claim 1, characterized in that: The first supporting portion (4) comprises: a first limiting block (10) and a second limiting block (11); The first limiting block (10) and the second limiting block (11) are arranged on the first limiting rod (3) at intervals.

3. The rigid support structure for central housing welding according to claim 2, characterized in that: The second supporting portion (5) comprises: a first connecting plate (12), a third limiting block (13) and a fourth limiting block (14); The first connecting plate (12) is arranged on the first limiting rod (3), and the third limiting block (13) and the fourth limiting block (14) are arranged on the first connecting plate (12) at intervals.

4. The rigid support structure for central housing welding according to claim 3, characterized in that: A first connecting member is provided between the first connecting plate (12) and the central casing.

5. The rigid support structure for central housing welding according to claim 4, characterized in that: The third supporting portion (8) comprises: a fifth limiting block (15) and a sixth limiting block (16); The fifth limiting block (15) and the sixth limiting block (16) are arranged on the second limiting rod (7) at intervals.

6. The rigid support structure for central casing welding according to claim 5, characterized in that: The fourth supporting portion (9) comprises: a second connecting plate (17) and a seventh limiting block (18); The second connecting plate (17) and the seventh limiting block (18) are arranged on the second limiting rod (7) at intervals, and a second connecting member is provided between the second connecting plate (17) and the central housing.

7. The rigid support structure for central housing welding according to claim 6, characterized in that: It also includes a first fixing plate (19), wherein the first fixing plate (19) is arranged on the bottom plate (1), and the first limiting member (2) is arranged on the first fixing plate (19).

8. The rigid support structure for central casing welding according to claim 7, characterized in that: It also includes a second fixing plate (20), the second fixing plate (20) being arranged on a side of the bottom plate (1) away from the first fixing plate (19), and the second limiting member (6) being arranged on the second fixing plate (20).

9. The rigid support structure for central casing welding according to claim 8, characterized in that: The bottom plate (1) is symmetrically provided with first positioning plates (21) along its length direction, and both sides of the first positioning plates (21) protrude outwards to form first limiting protrusions.

10. The rigid support structure for central casing welding according to claim 9, characterized in that: The bottom plate (1) is symmetrically provided with second positioning plates (22) along its length direction. The second positioning plates (22) are located outside the first positioning plates (21). Both sides of the second positioning plates (22) protrude outwards to form second limiting protrusions.

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