Fan outlet guide vane mounting device

Abstract

The application discloses a fan outlet guide vane mounting device which is used for mounting a fan outlet guide vane of an intermediate casing to an outer casing, and comprises a base assembly, a positioning disc assembly and a plurality of support frame assemblies, wherein the plurality of support frame assemblies are arranged on the base assembly and used for supporting the outer casing; and the positioning disc assembly is arranged on the support frame assembly and used for positioning and fixing the fan outlet guide vane so that the fan outlet guide vane is mounted to the outer casing. The base assembly is used for supporting the plurality of support frame assemblies, the support frame assemblies are used for supporting the outer casing, and the positioning disc assembly is used for fixing the fan outlet guide vane, so that the fan outlet guide vane can be conveniently mounted to the outer casing, and the operation is simple and convenient.

Description

Technical Field

[0001] This invention relates to the field of aero-engines, and in particular to a fan outlet guide vane mounting device. Background Technology

[0002] The intermediate casing is an important component of an aero-engine. Located between the fan casing and the high-pressure compressor, the intermediate casing is a crucial load-bearing structure. In high-bypass turbofan engines, the diameter of the intermediate casing can exceed 2.5 meters, resulting in significant weight.

[0003] like Figure 1 As shown, in addition to several load-bearing support plates 92, fan outlet guide vanes 93 are also evenly distributed around the circumference between the inner casing and the outer casing 91 of the intermediate casing 90. Figure 1 The inner casing is not shown. When installing the fan outlet guide vane 93, the intermediate casing 90 is in a vertical position. The blade root of the fan outlet guide vane 93 is placed with the inner casing facing the inner casing. At this time, it is necessary to precisely control the axial height of the blade edge plate of the fan outlet guide vane 93 to the outer casing 91 before bolting the fan outlet guide vane 93. It can be seen that due to the large diameter of the intermediate casing 90, the fan outlet guide vane 93 is inconvenient to install. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned defects of the inconvenience of installing the fan outlet guide vanes in the intermediate casing in the prior art, and to provide a fan outlet guide vane installation device.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A fan outlet guide vane mounting device is provided for mounting fan outlet guide vanes of an intermediate casing to an outer casing. The fan outlet guide vane mounting device includes: a base assembly, a positioning plate assembly, and a plurality of support frame assemblies. The plurality of support frame assemblies are disposed on the base assembly and are used to support the outer casing. The positioning plate assembly is disposed on the support frame assembly and is used to position and fix the fan outlet guide vane so that the fan outlet guide vane is mounted to the outer casing.

[0007] In this solution, by adopting the above structure, the base assembly supports several support frame assemblies, the support frame assemblies support the outer casing, and the positioning plate assembly fixes the fan outlet guide vanes, so that the fan outlet guide vanes can be conveniently installed to the outer casing. The operation is simple and convenient.

[0008] Preferably, the support frame assembly has a horizontal brace extending outward from the base assembly, and an adjustment block is provided at one end of the horizontal brace away from the base assembly. The outer casing is pressed against the adjustment block, and the adjustment block is used to adjust the horizontal height of the outer casing.

[0009] In the scheme, by adopting the above structure, the horizontal support is convenient for adapting to the outer casing with large diameter, and the adjusting block is convenient for adjusting the horizontal height by using the metal processing technology, for example, the adjusting block of the plurality of support frame assemblies can be milled to be flat, so that the upper surfaces of the adjusting blocks of the plurality of support frame assemblies are at the same horizontal height, thereby the horizontal degree of the outer casing can be ensured, and the assembly precision of the intermediate casing can be improved.

[0010] Preferably, the support frame assembly further comprises a limiting column, the limiting column is inserted into the adjusting block, and the outer side surface of the limiting column is used to abut against the inner side surface of the outer casing.

[0011] In the scheme, by adopting the above structure, the outer side surface of the limiting column abuts against the inner side surface of the outer casing, so that the outer casing is radially positioned, and the positioning precision of the outer casing relative to the fan outlet guide vane mounting device can be improved.

[0012] Preferably, the support frame assembly further comprises a pull plate, the pull plate is arranged at one end of the horizontal support away from the base assembly, and the pull plate is used to hang and connect a traction device.

[0013] In the scheme, by adopting the above structure, the pull plate hangs and connects the traction device, so that the fan outlet guide vane mounting device can be moved conveniently, and the use of a lifting device such as a travelling crane can be avoided.

[0014] Preferably, the support frame assembly has a stand column, the stand column is arranged at one end of the horizontal support close to the base assembly, the stand column extends upward, and the positioning disc assembly is arranged at the upper end of the stand column.

[0015] In the scheme, by adopting the above structure, the stand column is convenient for adjusting the height of the positioning disc assembly, and adapts to the installation position of the fan inlet guide vane.

[0016] Preferably, the positioning disc assembly comprises a disc and a plurality of fixing members, the disc is arranged to press the support frame assembly, the plurality of fixing members are arranged to be spaced apart from the upper side surface of the disc along the circumferential direction of the disc, and the fixing members are used to fix the lower flange plate of the fan outlet guide vane.

[0017] In the scheme, by adopting the above structure, the fixing members fix the fan outlet guide vane to the disc through the lower flange plate, the positioning is accurate, and the operation is convenient.

[0018] Preferably, the upper side surface of the disc further has a positioning step, the positioning step is located at the inner side surface of the fixing member, and the lower end of the fan outlet guide vane abuts against the positioning step.

[0019] In the scheme, by adopting the above structure, the positioning step can further improve the positioning precision and stability of the fan outlet guide vane.

[0020] Preferably, the disc is connected to the support frame assembly by a fastener and a positioning pin.

[0021] In this scheme, by adopting the above structure, the positioning pin can improve the relative position accuracy of the disc and the support frame assembly, and the fastener can improve the stability of the assembled disc.

[0022] Preferably, the base assembly comprises a frame and a walking wheel, the walking wheel is arranged below the frame, and a plurality of support frame assemblies are arranged above the frame.

[0023] In this scheme, by adopting the above structure, the walking wheel facilitates the movement of the fan outlet guide vane mounting device, the frame structure is simple, and the flexibility of the fan outlet guide vane mounting device can be improved.

[0024] Preferably, the fan outlet guide vane mounting device further comprises a plurality of fixed braces, the fixed braces are arranged on the base assembly, the fixed braces are used to lift the base assembly, and the fixed braces are also used to adjust the levelness of the fan outlet guide vane mounting device.

[0025] In this scheme, by adopting the above structure, the fixed brace can improve the stability of the fan outlet guide vane mounting device, and also facilitates the adjustment of the levelness of the fan outlet guide vane mounting device.

[0026] On the basis of common sense in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, to obtain each preferred example of the present application.

[0027] The positive progress effect of the present application is that:

[0028] The fan outlet guide vane mounting device of the present application supports a plurality of support frame assemblies by a base assembly, the support frame assemblies support an outer casing, and the fan outlet guide vane is fixed by a positioning disc assembly, so that the fan outlet guide vane can be conveniently mounted to the outer casing, and the operation is simple and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an intermediate casing in the prior art.

[0030] Figure 2 It is a structural schematic diagram of the fan outlet guide vane mounting device of the preferred embodiment of the present application.

[0031] Figure 3 It is Figure 2 It is a structural schematic diagram of the fan outlet guide vane mounting device.

[0032] Figure 4 It is a structural schematic diagram of the intermediate casing mounted to the fan outlet guide vane mounting device.

[0033] Figure 5 For Figure 4 Structure diagram of the intermediate casing mounted to the partial fan outlet guide vane mounting device.

[0034] BRIEF DESCRIPTION OF DRAWINGS

[0035] Fan outlet guide vane mounting device 100

[0036] Fastener 11

[0037] Positioning pin 12

[0038] Base assembly 20

[0039] Frame 21

[0040] Travelling wheel 22

[0041] Support frame assembly 30

[0042] Horizontal strut 31

[0043] Adjustment block 32

[0044] Limiting post 33

[0045] Pull plate 34

[0046] Column 35

[0047] Flange plate 36

[0048] Positioning disc assembly 40

[0049] Disc 41

[0050] Fixing member 42

[0051] Positioning step 43

[0052] Fixed support 50

[0053] Handle 51

[0054] Ground support post 52

[0055] Ground support base 53

[0056] Intermediate casing 90

[0057] Outer casing 91

[0058] Force bearing support plate 92

[0059] Fan outlet guide vane 93

[0060] Lower edge plate 94

[0061] Upper edge plate 95 DETAILED DESCRIPTION

[0062] The present invention will be described more clearly and completely below by way of embodiments and in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the embodiments.

[0063] like Figures 2 to 5 As shown, this embodiment is a fan outlet guide vane mounting device 100, used to install the fan outlet guide vane 93 of the intermediate casing 90 to the outer casing 91. The fan outlet guide vane mounting device 100 includes: a base assembly 20, a positioning plate assembly 40, and several support frame assemblies 30. The several support frame assemblies 30 are disposed on the base assembly 20 and are used to support the outer casing 91. The positioning plate assembly 40 is disposed on the support frame assembly 30 and is used to position and fix the fan outlet guide vane 93 so that the fan outlet guide vane 93 can be installed to the outer casing 91. The base assembly 20 supports the several support frame assemblies 30, the support frame assemblies 30 support the outer casing 91, and the positioning plate assembly 40 fixes the fan outlet guide vane 93, thereby making it easy to install the fan outlet guide vane 93 to the outer casing 91. The operation is simple and convenient.

[0064] The support frame assembly 30 has a horizontal brace 31 extending outward from the base assembly 20. An adjusting block 32 is provided at the end of the horizontal brace 31 furthest from the base assembly 20. The outer casing 91 is pressed against the adjusting block 32, which is used to adjust the horizontal height of the outer casing 91. The horizontal brace 31 is convenient for accommodating outer casings 91 with larger diameters, and the adjusting block 32 facilitates adjusting the horizontal height using metalworking processes. For example, the adjusting blocks 32 of multiple support frame assemblies 30 can be milled to ensure that the upper surfaces of the adjusting blocks 32 of multiple support frame assemblies 30 are at the same horizontal height, thereby ensuring the levelness of the outer casing 91 and improving the assembly accuracy of the intermediate casing 90. The horizontal brace 31 can be made of profiles such as square tubing, and the adjusting block 32 can be a rectangular metal block.

[0065] The support frame assembly 30 also includes a limiting post 33, which is inserted into the adjusting block 32. The outer side of the limiting post 33 abuts against the inner side of the outer casing 91. The abutment of the outer side of the limiting post 33 against the inner side of the outer casing 91 enables radial positioning of the outer casing 91, thereby improving the positioning accuracy of the outer casing 91 relative to the fan outlet guide vane mounting device 100. Specifically, the limiting post 33 can be a cylinder, which is inserted into the upper side of the adjusting block 32.

[0066] The support frame assembly 30 further comprises a pull plate 34 arranged at an end of the horizontal support 31 away from the base assembly 20, the pull plate 34 being used to hang a pulling device. The pulling device is hung on the pull plate 34, so that the fan outlet guide vane mounting device 100 can be moved conveniently, and the use of lifting equipment such as a lifting appliance can be avoided. The pull plate 34 can be a rectangular plate arranged at a side of the end of the horizontal support 31. The pull plate 34 can be provided with a circular hole, and the pulling device can apply a force to the pull plate 34 through the circular hole. In other embodiments, the pull plate 34 can also be connected to the pulling device in other ways, such as a hook, a chain, etc.

[0067] The support frame assembly 30 is provided with a stand 35 arranged at an end of the horizontal support 31 close to the base assembly 20, the stand 35 extending upward, and the positioning disc assembly 40 being arranged at an upper end of the stand 35. The stand 35 facilitates adjustment of the height of the positioning disc assembly 40, so as to adapt to the installation position of the fan inlet guide vanes. The stand 35 can be made of a square tube or other section bar.

[0068] A flange plate 36 can also be arranged above the stand 35, and the disc 41 is connected to the support frame assembly 30 through the flange plate. Specifically, the disc 41 can be connected to the support frame assembly 30 through the fastener 11 and the positioning pin 12. The positioning pin 12 can improve the relative position accuracy of the disc 41 and the support frame assembly 30, and the fastener 11 can improve the stability of the disc 41 after assembly.

[0069] As a specific embodiment, as shown in Figure 1 The number of support frame assemblies 30 can be 4, and the 4 support frame assemblies 30 are arranged uniformly and spaced apart on the base assembly 20. The axes of the 4 limiting columns 33 are located on the same cylindrical surface. A reinforcing rib plate can also be arranged between the horizontal support 31 and the stand 35, and a reinforcing rib plate can also be arranged between the flange plate 36 and the stand 35. In other embodiments, the number of support frame assemblies 30 can also be other values, such as 2, 3, 5, 6, etc. The support frame assemblies 30 are all detachably connected to the base assembly 20. The support frame assemblies 30 are all detachably connected to the positioning disc assembly 40.

[0070] The positioning disc assembly 40 comprises a disc 41 and a plurality of fixing members 42, the disc 41 being arranged on the support frame assembly 30, and the plurality of fixing members 42 being arranged on the upper side of the disc 41 along the circumferential direction of the disc 41, and the fixing members 42 being used to fix the lower edge plate 94 of the fan outlet guide vane 93. The fixing members 42 fix the fan outlet guide vane 93 to the disc 41 through the lower edge plate 94, and the positioning is accurate and convenient to operate. The fastener 11 can be a bolt. The center of the plurality of fasteners 11 arranged along the circumferential direction of the disc 41 and the center of the fixing members 42 are coaxial.

[0071] The upper side of the disc 41 further has a positioning step 43, which is located at the inner side of the fixing member 42, and the lower end of the fan outlet guide vane 93 abuts against the positioning step 43. The positioning step 43 can further improve the positioning accuracy and stability of the fan outlet guide vane 93.

[0072] The disc 41 can specifically be a circular ring, and the fixing members 42 are uniformly and spacedly arranged along the circumference of the disc 41. The arrangement positions of the fixing members 42 can correspond to the hole positions of the lower flange plate 94 of the fan outlet guide vane 93.

[0073] The base assembly 20 includes a frame 21 and a plurality of traveling wheels 22. The traveling wheels 22 are arranged below the frame 21, and a plurality of support assembly 30 are arranged above the frame 21. The traveling wheels 22 facilitate the movement of the fan outlet guide vane mounting device 100, and the frame 21 has a simple structure and can improve the flexibility of the fan outlet guide vane mounting device 100.

[0074] As an embodiment, as shown in Figure 2 The frame 21 can specifically be a square frame, and the support assembly 30 is arranged at the four corners of the square frame. The number of the traveling wheels 22 is also four, and the traveling wheels 22 can be connected to the bottom surface of the square frame 21 through flanges. In other embodiments, the shape of the frame 21 can also be triangular, pentagonal, hexagonal, circular ring, etc.

[0075] The fan outlet guide vane mounting device 100 further includes a plurality of fixing jacks 50, which are arranged on the base assembly 20. The fixing jacks 50 are used to lift the base assembly 20 and adjust the levelness of the fan outlet guide vane mounting device 100. The fixing jacks 50 can improve the stability of the fan outlet guide vane mounting device 100 and facilitate the adjustment of the levelness of the fan outlet guide vane mounting device 100.

[0076] As shown in Figure 2 The fixing jacks 50 are arranged on the side surface of the frame 21. The fixing jacks 50 include a handle 51, a jack column 52, and a jack base 53. By rotating the handle 51, the jack column 52 can be driven to rotate. The jack column 52 is provided with a transmission thread, and the rotating jack column 52 moves relative to the frame 21 through the transmission thread, thereby adjusting the levelness of the frame 21. After adjustment, the jack column 52 is fixed to the bottom surface through the jack base 53, the traveling wheels 22 are away from the ground, and the fan outlet guide vane mounting device 100 is more stable. In this embodiment, the number of the fixing jacks 50 is four. In other embodiments, the number of the fixing jacks 50 can also be other values.

[0077] The fan outlet guide vane mounting device 100 adopts a modular design, and can be split into a detachable base assembly 20, a support frame assembly 30, a positioning disc assembly 40, and a fixed support 50, etc. Compared with a whole ring mounting seat, the fan outlet guide vane mounting device 100 of the embodiment has a small volume and light weight.

[0078] The bottom of the fan outlet guide vane mounting device 100 is provided with traveling wheels 22, facilitating movement, and the support frame assembly 30 is detachable, reducing storage space.

[0079] The four detachable axial support frame assemblies 30 and the positioning disc assembly 40 can be designed differently according to different requirements, and the fan outlet guide vane mounting device 100 of the embodiment has good expansibility.

[0080] The fan outlet guide vane mounting device 100 of the embodiment is convenient to maintain and does not need to be repaired as a whole.

[0081] As shown in Figure 2 , the axial heights of the detachable support frame assemblies 30 of the fan outlet guide vane mounting device 100 of the embodiment are kept consistent, and when the fan outlet guide vanes 93 are assembled, the outer casing 91 of the intermediate casing 90 can be supported on the adjusting blocks 32 of the horizontal supports 31.

[0082] As shown in Figure 3 , the positioning disc assembly 40 is fixed on the support frame assembly 30, and the connection between the support frame assembly 30 and the positioning disc assembly 40 is provided with two positioning pins 12 for precise positioning. Then, a fastener 11 is used to press tightly.

[0083] As shown in Figure 4 and Figure 5 , the fan outlet guide vanes 93 are sequentially installed on the disc 41, and a fixing member 42 is used to fix the lower flange plate 94 of the fan outlet guide vane 93. In this state, the axial distance of each fan outlet guide vane 93 relative to the outer casing 91 is fixed. This facilitates subsequent tightening of the upper flange plate 95 and the bolt of the inner casing of the intermediate casing 90.

[0084] Although the specific embodiments of the present application are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and these changes and modifications all fall within the protection scope of the present application.

Claims

1. A fan outlet guide vane mounting device for mounting fan outlet guide vanes from an intermediate casing to an outer casing, characterized in that, The fan outlet guide vane mounting device includes: Base assembly; A plurality of support frame assemblies are disposed on the base assembly, and the support frame assemblies are used to support the outer casing; A positioning plate assembly is disposed on the support frame assembly. The positioning plate assembly is used to position and fix the fan outlet guide vane so that the fan outlet guide vane is installed to the outer casing. in, The support frame assembly has a horizontal brace that extends outward from the base assembly. An adjustment block is provided at one end of the horizontal brace away from the base assembly. The outer casing is pressed against the adjustment block, and the adjustment block is used to adjust the horizontal height of the outer casing. The support frame assembly also includes a limiting post, which is inserted into the adjusting block, and the outer side of the limiting post is used to abut against the inner side of the outer casing.

2. The fan outlet guide vane mounting device as described in claim 1, characterized in that, The support frame assembly also includes a pull plate, which is located at the end of the horizontal brace away from the base assembly, and is used to attach traction equipment.

3. The fan outlet guide vane mounting device as described in claim 1, characterized in that, The support frame assembly has a column, which is located at one end of the horizontal brace near the base assembly and extends upward. The positioning plate assembly is located at the upper end of the column.

4. The fan outlet guide vane mounting device as described in claim 1, characterized in that, The positioning disk assembly includes a disk and several fixing members. The disk is pressed onto the support frame assembly. The several fixing members are spaced apart along the circumference of the disk on the upper side surface of the disk. The fixing members are used to fix the lower edge plate of the fan outlet guide vane.

5. The fan outlet guide vane mounting device as described in claim 4, characterized in that, The upper side of the disk also has a positioning step, which is located on the inner side of the fixing member, and the lower end of the fan outlet guide vane abuts against the positioning step.

6. The fan outlet guide vane mounting device as described in claim 4, characterized in that, The disc is connected to the support frame assembly by fasteners and locating pins.

7. The fan outlet guide vane mounting device as described in claim 1, characterized in that, The base assembly includes a frame and wheels, with the wheels located below the frame and a plurality of support frame assemblies located above the frame.

8. The fan outlet guide vane mounting device as described in any one of claims 1-7, characterized in that, The fan outlet guide vane mounting device also includes several fixed supports, which are disposed on the base assembly. The fixed supports are used to lift the base assembly and also to adjust the level of the fan outlet guide vane mounting device.

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