Aero-engine guide vane assembly assembling auxiliary device

Abstract

The utility model provides an aero-engine guide vane assembly assembling auxiliary device which comprises two installation seats, the installation seats are provided with a plurality of guide vane installation devices, and when the two installation seats abut against each other, the guide vane installation devices of the two installation seats are sequentially arranged along a whole-ring path; and the turnover device is connected with the mounting seat and can drive the mounting seat to turn over. In conclusion, the guide vane is assembled through the auxiliary device, on one hand, guide vane assembly is standardized, the position of the guide vane does not need to be adjusted due to assembly of a sealing piece, the assembly efficiency is improved, and time is saved; on the other hand, the guide vane is kept in a fixed state in the assembling process, so that the sealing piece in the guide vane is not prone to moving or disengaging, deviation is reduced, and the assembling quality of the guide vane is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of engine manufacturing, specifically relates to an aero-engine guide vane assembly assembling auxiliary device. BACKGROUND

[0002] In the assembly of aero-engine turbine guide vanes, since the air leakage between guide vanes is closely related to turbine performance, directly affects turbine efficiency, and affects the casing cooling, therefore, a plurality of sealing pieces need to be assembled in the sealing groove between adjacent guide vanes, to play the role of preventing gas leakage. The sealing piece is small and thin, and it is very important to ensure that the sealing piece is installed in place and will not fall out.

[0003] However, in the guide vane installation process in the related art, since the guide vane is spliced into a whole ring by more than 20 sub-pieces, if the guide vane cannot be relatively fixed during installation, the sealing piece will be easily dislodged, and if the sealing piece is dislodged, reinstallation is inevitable. This will reduce the assembly efficiency and assembly quality. SUMMARY

[0004] The utility model discloses a kind of aero-engine guide vane assembly assembling auxiliary devices, which can improve the assembly efficiency and assembly quality of guide vane assembly installation.

[0005] The utility model discloses an aero-engine guide vane assembly assembling auxiliary device, comprising: two mounting seats, the mounting seat is equipped with multiple guide vane mounting devices, when two mounting seats abut, multiple guide vane mounting devices of two mounting seats are sequentially arranged along the whole ring path;The overturning device connected with the mounting seat, the overturning device can drive the mounting seat overturning. The auxiliary device of the application is used, first, two mounting seats are placed on workbench, and two mounting seats are separated from each other, and the side of mounting seat equipped with guide vane mounting device is set to upward;Then guide vane is sequentially loaded into mounting seat, and guide vane is fixed by guide vane mounting device;Two mounting seats are abutted together to make the guide vane on it spliced into annular guide vane assembly;Finally, overturning device is used to overturn 180 ° two mounting seats together with guide vane assembly on it, and load into casing. In summary, the guide vane is assembled by the auxiliary device of the application, on the one hand, guide vane assembly is standardized, and guide vane position does not need to be adjusted due to sealing piece assembly, assembly efficiency is improved, and time is saved;On the other hand, guide vane is kept in fixed state during assembly, so that sealing piece in guide vane is not easy to move or dislodge, thereby reducing deviation, and ensuring the assembly quality of guide vane.

[0006] Optionally, the overturning device is provided with an ear for cooperating with a lifting device to overturn the mounting seat around the ear. After the guide vane is assembled, the lifting rope can be axially positioned on the clamping groove of the ear. The lifting rope can lift the auxiliary device through the ear. The cooperation between the lifting rope and the ear enables the mounting seat to overturn around the ear together with the guide vane installed thereon, which facilitates the mounting into the casing.

[0007] Optionally, the overturning device comprises a first support rod, a transition rod and a second support rod connected in sequence, wherein the first support rod is connected to the mounting seat, the transition rod is rotatably connected to the first support rod, and the second support rod is provided with the ear. In this way, the mounting seat can be overturned around the ear with the overturning device and around the transition rod, the overturning mode is more diverse, and the posture after overturning is more diverse, which is more convenient for use of the device.

[0008] Optionally, the second support rod is located outside the area defined by the two mounting seats. The area between the two second support rods is the guide vane mounting area, so that the overturning device is arranged as far away from the guide vane mounting area as possible to avoid interfering with the guide vane installation.

[0009] Optionally, the overturning device is further provided with a locking device capable of locking and fixing the transition rod to the first support rod and releasing the transition rod to enable the mounting seat to overturn around the transition rod with the first support rod, which is more convenient for operation and posture control of the auxiliary device.

[0010] Optionally, the first support rod and the transition rod are both provided with a latch hole, and the locking device is a latch capable of being inserted into the latch hole to prevent relative rotation between the first support rod and the transition rod.

[0011] Optionally, one of the two mounting seats is provided with a first connecting part, and the other is provided with a second connecting part. When the two mounting seats abut against each other, the first connecting part is detachably connected to the second connecting part to effectively lock the two mounting seats in the state of abutting against each other.

[0012] Optionally, a fastening assembly is further included, which comprises a bolt and a nut. The first connecting part and the second connecting part are both provided with a through hole. When the two mounting seats abut against each other, the bolt can pass through the first connecting part and the second connecting part in sequence, and the nut is connected to the bolt to limit the first connecting part and the second connecting part between the bolt head of the bolt and the nut, thereby effectively maintaining the two mounting seats in the state of abutting against each other.

[0013] Optionally, the guide vane mounting device comprises a positioning pin and a pressing device, the positioning pin is used for positioning the guide vane, and the pressing device is used for pressing and fixing the guide vane, so as to position the guide vane to the mounting position as soon as possible and improve the assembly efficiency.

[0014] Optionally, one side of the mounting seat provided with the guide vane mounting device is provided with a sliding groove, the two mounting seats can be placed on a workbench, so that the sliding rails provided on the sliding groove and the workbench are slidably matched, so that the two mounting seats are close to or away from each other along the extension direction of the sliding rails, and the operation is facilitated, and the two mounting seats can be separated from the workbench, so that the turnover device can drive the mounting seat to turn over, and the mounting into the casing is facilitated.

[0015] The beneficial effects of the utility model are as follows:

[0016] The auxiliary device disclosed in the application is used for assembling a guide vane assembly of an aero-engine, and the auxiliary device comprises two mounting seats, the mounting seat is provided with a plurality of guide vane mounting devices, the plurality of guide vane mounting devices of the two mounting seats are sequentially arranged along a whole ring path when the two mounting seats abut against each other, and a turnover device connected to the mounting seat, the turnover device can drive the mounting seat to turn over.

[0017] When the auxiliary device is used, first, the two mounting seats are placed on a workbench, the two mounting seats are separated from each other, and one side of the mounting seat provided with the guide vane mounting device is arranged upwards; then, the guide vanes are sequentially mounted into the mounting seat and fixed through the guide vane mounting device; then, the two mounting seats are abutted against each other, so that the guide vanes on the two mounting seats are spliced into a ring-shaped guide vane assembly; finally, the two mounting seats and the guide vane assembly thereon are turned over by 180 degrees through the turnover device and mounted into a casing.

[0018] In summary, through the auxiliary device, the guide vane assembly is assembled, in one aspect, the guide vane assembly is standardized, the position of the guide vane does not need to be adjusted due to the assembly of a sealing piece, the assembly efficiency is improved, and time is saved; in another aspect, the guide vane is kept in a fixed state during the assembly process, so that the sealing piece in the guide vane is not easy to move or fall out, thereby reducing the deviation and ensuring the assembly quality of the guide vane. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above features and advantages of the utility model can be better understood after reading the detailed description of the embodiments of the present disclosure in combination with the following drawings. In the drawings, the components are not necessarily drawn to scale, and the components having similar related properties or features can have the same or similar reference numerals.

[0020] Figure 1 is a top view of the guide vane assembly assembling auxiliary device of the utility model;

[0021] Figure 2Is the posture map of the auxiliary device in the installation of the guide vane;

[0022] Figure 3 Is the posture map of the auxiliary device in the installation of the guide vane; Figure 2 The posture map after turning over;

[0023] Figure 4 Is the posture map of the auxiliary device in the installation of the guide vane; Figure 2 The posture map after turning over;

[0024] Explanation of reference signs:

[0025] 100 - mounting seat,

[0026] 110 - first connecting part, 120 - second connecting part, 130 - bolt, 140 - nut,

[0027] 200 - guide vane installation device,

[0028] 300 - turning device, 320 - first supporting rod, 330 - transition rod, 340 - second supporting rod, 310 - lifting lug, 350 - locking device,

[0029] 400 - sliding rail. DETAILED DESCRIPTION

[0030] The utility model will be further described below in combination with specific embodiments and drawings, and more details are set forth in the following description so as to fully understand the utility model, but the utility model can obviously be implemented in many other ways different from the description, and the person skilled in the art can make similar generalization and deduction according to actual application conditions without departing from the connotation of the utility model, therefore the protection scope of the utility model should not be limited by the content of the specific embodiments.

[0031] It should be noted that these and other subsequent drawings are only as examples, and are not drawn according to the condition of the same scale, and should not be used as a limitation on the protection scope actually required by the utility model.

[0032] In the assembly of turbine guide vanes of an aero-engine, since the leakage amount between guide vanes is closely related to the turbine performance, directly affects the turbine efficiency, and affects the casing cooling, therefore, a plurality of sealing pieces need to be assembled in the sealing grooves between adjacent guide vanes, to play the role of preventing gas leakage. The sealing piece is small and thin, and an important point for the installation of the sealing piece is to ensure that the sealing piece is in place and cannot be taken out. However, in the guide vane installation process in the related art, since the guide vane is spliced into a whole ring by more than 20 sub-pieces, if the guide vane cannot be relatively fixed during the installation process, the sealing piece will be easily taken out, if the sealing piece is taken out, it is necessary to rework and reinstall. This will reduce the assembly efficiency and assembly quality, therefore, to solve such problems, the technical scheme of the present application is generated, which is described below in combination withFigures 1-4 The description is made.

[0033] Figure 1 is the top view of the guide vane assembly assembling auxiliary device of the utility model; Figure 2 is the attitude diagram when the auxiliary device installs the guide vane. As shown in the figure, the application discloses an aero-engine guide vane assembly assembling auxiliary device, which comprises a mounting seat 100, a guide vane mounting device 200 and a turnover device 300.

[0034] Among them, the mounting seat 100 is the installation base of the application device, and the mounting seat 100 is a whole half ring structure, and two are provided. A plurality of guide vane mounting devices 200 are provided on the mounting seat 100, and the guide vane mounting device 200 is used for one-to-one installation of the guide vane, and the two mounting seats 100 are abutted to splice into a whole ring, and the plurality of guide vane mounting devices 200 of the two mounting seats 100 are sequentially arranged along the whole ring path, so as to splice the guide vanes into a ring on the auxiliary device of the application. The turnover device 300 is connected to the mounting seat 100, and the turnover device 300 can drive the mounting seat 100 to turn over.

[0035] When the auxiliary device of the application is used, first, the two mounting seats 100 are placed on the workbench, and the two mounting seats 100 are separated from each other, and the side of the mounting seat 100 provided with the guide vane mounting device 200 is arranged downward; then the guide vanes are loaded into the mounting seat 100 one by one, and the guide vanes are fixed through the guide vane mounting device 200; then the two mounting seats 100 are abutted together to splice the guide vanes on them into a ring-shaped guide vane assembly; finally, the two mounting seats 100 together with the guide vane assembly thereon are turned over by 180° through the turnover device 300, and loaded into the casing.

[0036] In summary, through the guide vane assembling auxiliary device of the application, on the one hand, the guide vane assembling standardization is realized, and the guide vane position does not need to be adjusted due to the assembly of the sealing piece, the assembly efficiency is improved, and the time is saved; on the other hand, the guide vanes are kept in a fixed state during the guide vane assembling process, so that the sealing piece in the guide vane is not easy to move or fall out, thereby reducing the deviation and ensuring the assembling quality of the guide vanes.

[0037] Optionally, the turnover device 300 is provided with an ear 310, and the ear 310 is used for mutual cooperation with a lifting appliance to make the mounting seat 100 turn over around the ear 310. Specifically, as shown in Figure 2 and Figure 4 , the lifting appliance can be a lifting rope and the like, the ear 310 is a protruding shaft arranged on the outer side of the turnover device 300, and the ear 310 is provided with a ring-shaped clamping groove; after the guide vane assembly is completed, the auxiliary device is as shown in Figure 2The state shown, the sling can be positioned on the clamping groove of the lifting lug 310, the sling can hoist the auxiliary device through the lifting lug 310, and the cooperation of the sling and the lifting lug 310 enables the mounting seat 100 to be turned by 180 degrees with the guide vane installed thereon around the lifting lug 310 to the state shown. Figure 4 The state shown, the guide vane is loaded into the casing from top to bottom.

[0038] Alternatively, for the specific structure of the turning device 300, the turning device 300 comprises a first support rod 320, a transition rod 330 and a second support rod 340 connected in sequence. The first support rod 320 and the second support rod 340 both extend vertically, and the transition rod 330 extends horizontally. The first support rod 320 is connected to the end face of the mounting seat 100 where the guide vane mounting device 200 is arranged. The transition rod 330 is rotatably connected to the side of the first support rod 320 away from the mounting seat 100. The second support rod 340 is provided with the lifting lug 310, and the lifting lug 310 and the transition rod 330 are connected to the two opposite ends of the second support rod 340 respectively. In this way, the mounting seat 100 can be turned around the lifting lug 310 with the turning device 300, and can also be turned around the transition rod 330, so that the turning mode is more diverse, and the posture after turning is more diverse, such as Figure 3 the posture after turning, or Figure 4 the posture after turning, which is more convenient for the use of the device. It should be noted that the turning is preferably Figure 3 The state shown, to prevent the turning device 300 from interfering with the loading of the guide vane into the casing.

[0039] Alternatively, the second support rod 340 is located outside the area defined by the two mounting seats 100. The area between the two second support rods 340 is the guide vane mounting area, so that the turning device 300 is arranged as far away from the guide vane mounting area as possible to avoid interference with the guide vane mounting.

[0040] Alternatively, the turning device 300 is also provided with a locking device 350, which can lock and fix the transition rod 330 to the first support rod 320, which helps to fix the current posture of the auxiliary device. The locking device 350 can also release the transition rod 330, so that the mounting seat 100 turns around the transition rod 330 with the first support rod 320, which is more conducive to the operation and posture control of the auxiliary device.

[0041] Alternatively, for the specific structure of the locking device 350, it can be any device that can lock the relative rotation between the transition rod 330 and the first support rod 320, such as a locking screw, a bushing, etc. However, the present application adopts the following arrangement:

[0042] The first support rod 320 is sleeved with the transition rod 330, and the first support rod 320 and the transition rod 330 are both provided with a pin hole. The locking device 350 is a pin capable of being inserted into the pin hole. In use, when the locking device 350 is inserted into the pin holes of the first support rod 320 and the transition rod 330 in sequence, the transition rod 330 is locked to prevent relative rotation between the first support rod 320 and the transition rod 330, and when the locking device 350 is pulled out, the transition rod 330 can rotate relative to the first support rod 320, so as to adjust the posture of the auxiliary device, such as Figure 2 and Figure 3 the posture switching between the two.

[0043] Optionally, one of the two mounting seats 100 is provided with a first connecting part 110, and the other is provided with a second connecting part 120. When the two mounting seats 100 abut against each other, the first connecting part 110 is detachably connected with the second connecting part 120, so as to effectively lock the two mounting seats 100 in the state of abutting against each other. When the first connecting part 110 and the second connecting part 120 are detached from each other, the two mounting seats 100 can also be separated from each other.

[0044] Optionally, the first connecting part 110 is arranged at two opposite ends of one of the annular mounting seats 100, and the second connecting part 120 is arranged at two opposite ends of the other annular mounting seat 100, so as to better lock the two mounting seats 100 in the state of abutting against each other.

[0045] Optionally, the first connecting part 110 and the second connecting part 120 are arranged in a structure similar to a flange connecting part. Specifically, the auxiliary device further comprises a fastening assembly, the fastening assembly comprises a bolt 130 and a nut 140, and the first connecting part 110 and the second connecting part 120 are both provided with a through hole. When the two mounting seats 100 abut against each other, the bolt 130 can be inserted into the first connecting part 110 and the second connecting part 120 in sequence, and the nut 140 is connected with the bolt 130, so as to limit the first connecting part 110 and the second connecting part 120 between the bolt head of the bolt 130 and the nut 140, thereby effectively maintaining the two mounting seats 100 in the state of abutting against each other. When it is needed to separate the two mounting seats 100 from each other, the nut 140 is unscrewed and the bolt 130 is separated, and then the bolt 130 is pulled out from the first connecting part 110 and the second connecting part 120. Further, a plurality of fastening assemblies can be arranged to improve the fixing effect.

[0046] Optionally, the guide vane mounting device 200 comprises a positioning pin and a pressing device, both of which are arranged on the mounting seat 100. The positioning pin is used for positioning the guide vane, and the pressing device is used for pressing and fixing the guide vane, so as to quickly position the guide vane to the mounting position and improve the assembly efficiency.

[0047] Optionally, as described above, for the convenience of operation, the two mounting seats 100 are placed on the workbench, the workbench is provided with sliding rails 400, one side of the mounting seat 100 provided with the guide vane mounting device 200 is provided with a sliding groove, and the setting position of the sliding groove and the guide vane mounting device 200 are staggered with each other. In the installation stage of the guide vane, the two mounting seats 100 are separated from each other, and the sliding groove on the mounting seat 100 and the sliding rail 400 provided on the workbench are in sliding fit, so that the two mounting seats 100 are close to and away from each other along the extension direction of the sliding rail 400, which is convenient for operation; after the installation of the guide vane is completed, the auxiliary device is lifted as a whole by the lifting tool, so that the two mounting seats 100 can be separated from the workbench, and the turnover device 300 can drive the mounting seat 100 to turn over, which is convenient for loading into the casing.

[0048] The use mode of the auxiliary device of the present application will be described in detail below:

[0049] Step S100: Place the mounting seat 100 on the workbench, so that the mounting seat 100 and the sliding rail 400 are in sliding fit, and the two mounting seats 100 are separated from each other, as shown in Figure 1 ;

[0050] Step S200: Install the guide vanes one by one on the mounting seat 100, and fix and position the guide vanes by the guide vane mounting device 200;

[0051] Step S300: The two mounting seats 100 are close to each other to abut, so that a plurality of guide vanes form a guide vane assembly, as shown in Figure 2 ;

[0052] Step S400: The bolt 130 is sequentially arranged through the first connecting part 110 and the second connecting part 120, and the nut 140 is screwed into the bolt 130, so as to clamp the first connecting part 110 and the second connecting part 120, and fix the two mounting seats 100 in the state of abutting each other;

[0053] Step S500: The lifting ear 310 is arranged around the lifting tool such as lifting rope, so as to lift the lifting ear 310, so that the auxiliary device and the workbench are separated from each other;

[0054] Step S600: The auxiliary device is rotated around the lifting ear 310, so as to realize the 180° turnover of the mounting seat 100 as shown in Figure 4 ; or the auxiliary device is rotated around the transition rod 330, so as to realize the 180° turnover of the mounting seat 100 as shown in Figure 3 ; preferably, the rotation is 180° as shown in Figure 3 ;

[0055] Step S700: Assemble the guide vane assembly into the casing.

[0056] The utility model discloses although the above-mentioned preferable embodiment is disclosed, but it is not used to limit the utility model, and any person skilled in the art can make possible change and modification without departing from the spirit and scope of the utility model. Therefore, all the contents without departing from the technical scheme of the utility model, according to the technical essence of the utility model, any modification, equivalent change and modification of the above embodiment, all fall into the protection scope defined in the utility model claim.

Claims

1. An aircraft engine vane assembly assembly aid, comprising: include: Two mounting bases (100) are provided with multiple guide vane mounting devices (200). When the two mounting bases (100) abut each other, the multiple guide vane mounting devices (200) of the two mounting bases (100) are arranged sequentially along the entire ring path. A flipping device (300) is connected to the mounting base (100), and the flipping device (300) can drive the mounting base (100) to flip.

2. The wicket gate assembly assembly aid of claim 1, wherein, The flipping device (300) is provided with a lifting lug (310), which is used to cooperate with the lifting device so that the mounting base (100) can be flipped around the lifting lug (310).

3. The wicket gate assembly assembly aid of claim 2, wherein, The flipping device (300) includes a first support rod (320), a transition rod (330), and a second support rod (340) connected in sequence, wherein, The first support rod (320) is connected to the mounting base (100). The transition rod (330) is rotatably connected to the first support rod (320). The second support rod (340) is provided with the lifting lug (310).

4. The wicket gate assembly assembly aid of claim 3, wherein, The second support rod (340) is located outside the area defined by the two mounting seats (100).

5. The wicket gate assembly assembly aid of claim 3, wherein, The flipping device (300) is also provided with a locking device (350). The locking device (350) can lock and fix the transition rod (330) to the first support rod (320), and The locking device (350) can release the transition rod (330) so that the mounting base (100) rotates around the transition rod (330) along with the first support rod (320).

6. The wicket gate assembly assembly aid of claim 5, wherein, Both the first support rod (320) and the transition rod (330) are provided with pin holes, and the locking device (350) is a pin that can be inserted into the pin hole.

7. The wicket gate assembly assembly aid of claim 1, wherein, One of the two mounting bases (100) is provided with a first connecting portion (110), and the other is provided with a second connecting portion (120). When the two mounting bases (100) abut, the first connecting part (110) is detachably connected to the second connecting part (120).

8. The wicket gate assembly assembly aid of claim 7, wherein, It also includes a fastening assembly comprising a bolt (130) and a nut (140), wherein through holes are provided on both the first connecting portion (110) and the second connecting portion (120). When the two mounting seats (100) abut, the bolt (130) can pass through the first connecting part (110) and the second connecting part (120) in sequence, and the nut (140) connects the bolt (130) so that the first connecting part (110) and the second connecting part (120) are confined between the bolt head of the bolt (130) and the nut (140).

9. The wicket gate assembly assembly aid of claim 1, wherein, The guide vane mounting device (200) includes a positioning pin and a clamping device both disposed on the mounting base (100). The positioning pin is used to position the guide vane, and the clamping device is used to clamp and fix the guide vane.

10. The wicket gate assembly assembly aid of claim 1, wherein, The mounting base (100) has a sliding groove on one side of the guide vane mounting device (200). The two mounting bases (100) can be placed on the worktable to allow for sliding engagement between the slide groove and the slide rail (400) provided on the worktable. Two said mounting seats (100) can separate said workbench to enable said turnover device (300) to drive said mounting seat (100) to overturn.

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