Auxiliary tool for disassembling and assembling gas inlet casing of gas turbine

Abstract

The utility model discloses a dismounting auxiliary tool for an air inlet casing of a gas turbine, and relates to the technical field of gas turbines. The disassembly and assembly auxiliary tool for the gas inlet casing of the gas turbine comprises a workbench; the two rotating brackets are oppositely arranged on the workbench; the axes of the two rotating supports coincide, and the two rotating supports can rotate around the axes of the two rotating supports. The connecting disc is arranged between the two rotating supports and used for being detachably connected with the air inlet casing; the driving part is connected with the rotating shaft of any one of the two rotating brackets; and the driving mechanisms are used for driving the corresponding rotating brackets to rotate around own axes. Through the arrangement of the rotary support and the connecting disc which can be detachably connected with the air inlet casing, the labor intensity during overturning of the air inlet casing can be reduced, and the working efficiency is also improved. And in addition, the sliding phenomenon cannot occur in the process of overturning the air inlet casing by means of the rotating support and the connecting disc.

Description

Technical Field

[0001] The present application relates to the technical field of gas turbines, and in particular to a disassembly and assembly auxiliary tool for an air intake casing of a gas turbine. Background Art

[0002] In the prior art, the air intake casing of the gas turbine is usually fixed horizontally on a workbench, and then the air intake casing is assembled or disassembled on the workbench. Due to the structure of the air intake casing itself, it is necessary to move or flip the air intake casing during the assembly or disassembly of the air intake casing. Due to the heavy weight of the air intake casing, it is difficult to move or flip the air intake casing during the assembly or disassembly process. Even with the help of tools such as a crane or a crane, it is difficult to flip the air intake casing smoothly. Not only does it lead to high labor intensity and low work efficiency during the assembly or disassembly of the air intake casing, but also sliding may occur during the movement or flipping of the air intake casing, which may cause damage to the air intake casing at the least, or even cause safety accidents at the worst. Utility Model Content

[0003] The purpose of the present application is to provide a gas turbine air intake casing disassembly and assembly auxiliary tool to solve the technical problem of difficulty in assembling or disassembling and flipping the air intake casing in the prior art.

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] A gas turbine air intake casing disassembly and assembly auxiliary tool, comprising:

[0006] Workbench;

[0007] Two rotating brackets are arranged opposite to each other on the workbench; the axis lines of the two rotating brackets coincide with each other, and the two rotating brackets can rotate around their own axis lines;

[0008] A connecting plate, disposed between the two rotating brackets, and used to form a detachable connection with the air intake casing;

[0009] The driving member is connected to the rotating shaft of any one of the two rotating brackets and is used to drive the corresponding rotating bracket to rotate around its own axis.

[0010] As a specific solution in the technical solution of the present application, a positioning structure is further provided between the workbench and any one of the two rotating brackets, and the positioning structure is used to prevent relative rotation between the rotating bracket and the workbench.

[0011] As a specific solution in the technical solution of this application, the positioning structure includes:

[0012] At least two positioning holes are provided on the rotating bracket;

[0013] A positioning column, wherein the first end of the positioning column is adapted to the positioning hole.

[0014] As a specific solution in the technical solution of this application, the positioning structure also includes:

[0015] A positioning seat is arranged on the workbench; the positioning column and the positioning seat form a sliding connection along a first direction; the first direction is parallel to the axis of the positioning column;

[0016] A control member is connected to the second end of the positioning column and is used to control the positioning column to perform reciprocating motion along the first direction.

[0017] As a specific solution in the technical solution of this application, the control element includes:

[0018] an elastic member, used for applying an elastic force along the first direction to the positioning column, so that the positioning column has a tendency to approach the positioning hole along the first direction;

[0019] A control handle is arranged at the second end of the positioning column.

[0020] As a specific solution in the technical solution of the present application, the connecting plate is provided with a weight-reducing hole, a plurality of first threaded holes and a plurality of second threaded holes.

[0021] As a specific solution in the technical solution of the present application, the driving member includes a rotating handle or a rotating motor.

[0022] As a specific solution in the technical solution of the present application, a turbine reducer is further arranged between the driving member and the rotating shaft of the corresponding rotating bracket.

[0023] As a specific solution in the technical solution of the present application, the workbench is also provided with a push-pull handle and a plurality of sliding wheels.

[0024] As a specific solution in the technical solution of the present application, the workbench is also provided with a supporting assembly; the supporting assembly is used to increase the friction between the workbench and the ground.

[0025] Compared with the prior art, the beneficial effects of this application are:

[0026] The present application can reduce the labor intensity when turning over the air intake casing by providing a rotating bracket and a connecting plate that can be detachably connected to the air intake casing, that is, improve work efficiency. In addition, no sliding phenomenon will occur during the turning over of the air intake casing by means of the rotating bracket and the connecting plate, that is, the air intake casing will not be damaged due to sliding or cause a safety accident due to sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic front view of a gas turbine air intake casing disassembly and assembly auxiliary tool proposed in an embodiment of the present application (with an air intake casing installed);

[0028] Figure 2 for Figure 1 A side view schematic diagram of the auxiliary tool for disassembling and assembling the air intake casing of a gas turbine (without the air intake casing installed);

[0029] Figure 3 A schematic diagram of the structure of a connection disk proposed in an embodiment of the present application;

[0030] Figure 4 This is a structural schematic diagram of a positioning structure proposed in an embodiment of the present application.

[0031] In the figure: 1. workbench; 11. sliding wheel; 12. push-pull handle; 13. support assembly; 2. rotating bracket; 3. driving member; 4. connecting plate; 41. weight-reducing hole; 42. first threaded hole; 43. second threaded hole; 5. turbine reducer; 6. positioning structure; 61. positioning seat; 62. positioning column; 63. elastic member; 64. control member; 7. air intake casing. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] It should be noted that, in the description of the present application, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0034] Furthermore, it should be understood that for the sake of ease of description, the sizes of the various components shown in the drawings are not drawn according to actual proportions. For example, the thickness or width of certain layers may be exaggerated relative to other layers.

[0035] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not require further detailed discussion and description in the description of the subsequent drawings.

[0036] In order to solve the technical problem of the difficulty in assembling or disassembling the air intake casing in the prior art, the present application proposes a disassembly and assembly auxiliary tool for the air intake casing of a gas turbine, the auxiliary tool comprising a workbench 1, a connecting plate 4, a driving member 3, and two rotating brackets 2. Figure 1 As shown, two rotating brackets 2 are arranged opposite to each other on the workbench 1, the axis centers of the two rotating brackets 2 coincide with each other, and the two rotating brackets 2 can rotate around their own axis centers. The connecting plate 4 is arranged between the two rotating brackets 2, and is used to form a detachable connection with the air intake casing 7. The driving member 3 is connected to the rotating axis of any one of the two rotating brackets 2, and is used to drive the corresponding rotating bracket 2 to rotate around its own axis center line.

[0037] When in use, the air intake casing 7 is fixed to the connecting plate 4. If the air intake casing 7 needs to be turned over, the driving member 3 drives the rotating bracket 2 to turn over; the rotating bracket 2 further drives the connecting plate 4 to turn over; and the connecting plate 4 further drives the air intake casing 7 to turn over. Compared with the prior art of turning over the air intake casing 7 with the help of tools such as a crane or a crane, the use of the auxiliary tool of the embodiment of the present application to turn over the air intake casing 7 has low labor intensity and high work efficiency, and the air intake casing 7 will not slide during the turning process, that is, the air intake casing 7 will not be damaged due to sliding or cause a safety accident due to sliding.

[0038] In the embodiments of the present application, there is no restriction on the shape and structure of the workbench 1. For example, the shape of the workbench 1 can be a circular table, or it can be a Figure 1 and Figure 2 The workbench 1 can be a solid structure or a Figure 1 and Figure 2 The frame structure shown in the figure. The height of the workbench 1 should be ergonomic and convenient for operators to operate.

[0039] In an embodiment of the present application, after the air intake casing 7 is flipped to a fixed angle, the angle of the air intake casing 7 can be manually limited to prevent the current angle of the air intake casing 7 from changing due to external forces generated during assembly or disassembly. It should be clear that manual limitation refers to manually limiting the angle of the air intake casing 7 by holding the air intake casing 7 tightly with hands. This method is labor-intensive and has certain safety risks. In order to reduce labor and safety risks, in an embodiment of the present application, a positioning structure 6 is further provided between the workbench 1 and any one of the two rotating brackets 2, and the positioning structure 6 is used to prevent relative rotation between the rotating bracket 2 and the workbench 1. It is easy to understand that if any one of the two rotating brackets 2 cannot rotate, the connecting plate 4 cannot rotate either, that is, the air intake casing 7 cannot rotate, so the current angle of the air intake casing 7 will not change due to external forces generated during assembly or disassembly. It is easy to understand that this embodiment limits the angle of the air intake casing 7 by a mechanical structure (that is, the positioning structure 6), which can reduce labor and safety risks compared with the manual method.

[0040] In the embodiment of the present application, the positioning structure 6 can be any structure that can prevent the relative rotation between the rotating bracket 2 and the workbench 1. For example, the positioning structure 6 can be as shown in several specific embodiments below. In a specific embodiment of the present application, the positioning structure 6 includes a positioning column 62 and at least two positioning holes (not shown in the figure) provided on the rotating bracket 2. The first end of the positioning column 62 is adapted to the positioning hole.

[0041] When in use, rotate the rotating bracket 2 to the target position. If the rotating bracket 2 needs to be limited, insert the first end of the positioning column 62 into the positioning hole. Due to the limiting effect of the positioning column 62, the rotating bracket 2 and the workbench 1 cannot produce relative rotation. It should be understood that in the embodiment of the present application, the first end of the positioning column 62 is adapted to the positioning hole, which means that the outer diameter of the first end of the positioning column 62 is smaller than the inner diameter of the positioning hole, and after the first end of the positioning column 62 is inserted into the positioning hole, the first end of the positioning column 62 cannot produce shaking in the positioning hole along the radial direction of the positioning column 62.

[0042] In another specific embodiment of the present application, the positioning structure 6 further includes a positioning seat 61 and a control member 64. The positioning seat 61 is disposed on the workbench 1. The positioning column 62 is slidably connected to the positioning seat 61 along a first direction. The first direction is parallel to the axis of the positioning column 62. The control member 64 is connected to the second end of the positioning column 62 and is used to control the positioning column 62 to reciprocate along the first direction.

[0043] When in use, if the air intake casing 7 needs to be turned over, the positioning column 62 is controlled by the control member 64 to move away from the positioning hole in the first direction until the first end of the positioning column 62 is completely separated from the positioning hole. Since the first end of the positioning column 62 is separated from the positioning hole, the air intake casing 7 can be rotated freely. If the angle of the air intake casing 7 needs to be fixed, the positioning column 62 is controlled by the control member 64 to move closer to the positioning hole in the first direction until the first end of the positioning column 62 is inserted into the positioning hole. Since the first end of the positioning column 62 is located in the positioning hole, the air intake casing 7 cannot be rotated.

[0044] In an embodiment of the present application, the control member 64 may be any component or assembly capable of controlling the positioning column 62 to reciprocate along the first direction. In another specific embodiment of the present application, the control member 64 may be an electric push rod, a hydraulic push rod, or a linear motor. In another specific embodiment of the present application, the control member 64 includes a control handle and an elastic member 63. Figure 4 As shown, the elastic member 63 is used to apply an elastic force along the first direction to the positioning column 62, so that the positioning column 62 has a tendency to approach the positioning hole along the first direction. The control handle is arranged at the second end of the positioning column 62. During use, if the positioning column 62 needs to be disengaged from the positioning hole, the control handle is manually pulled to move the positioning column 62 away from the positioning hole along the first direction; if the positioning column 62 needs to be inserted into the positioning hole, the pulling force on the control handle is canceled, and the positioning column 62 is further automatically inserted into the positioning hole under the elastic force of the elastic member 63. The above structure enables the positioning column 62 to always be subjected to a force directed to the positioning hole, that is, the positioning column 62 can be placed more stably in the positioning hole, that is, in the absence of an external force along the axial direction of the positioning column 62, the positioning column 62 can never be disengaged from the positioning hole.

[0045] In the embodiment of the present application, the elastic member 63 can be any component that can generate elastic force, such as a spring or an elastic sheet. In the embodiment of the present application, there is no restriction on the number of positioning holes. In order to enable the air intake casing 7 to have an angle that satisfies all assembly or disassembly operations, in a specific embodiment of the present application, the number of positioning holes is 8, and each positioning hole is evenly distributed around the axis of the rotating bracket 2.

[0046] As can be seen from the foregoing, in the embodiment of the present application, only one positioning structure 6 is required to meet the requirement of limiting the angle of the air intake casing 7 during use. Since the weight of the air intake casing 7 is relatively large, if only one positioning structure 6 is provided, the life of the positioning structure 6 is relatively short during long-term use. In order to increase the service life of the positioning structure 6, in another embodiment of the present application, a positioning structure 6 may be provided between another rotating bracket 2 and the workbench 1, that is, two positioning structures 6 are provided. Since the two positioning structures 6 are symmetrically arranged, that is, the force borne by each positioning structure 6 is 1 / 2 of the force borne by a single positioning structure 6, the service life of the positioning structure 6 can be increased.

[0047] In the embodiments of the present application, there is no limitation on the shape and structure of the connection disk 4. For example, the connection disk 4 may be a square disk structure, or Figure 3 In one embodiment of the present application, in order to reduce the weight of the auxiliary tool. Figure 3 As shown, a weight-reducing hole 41 can be provided on the connection plate 4, and the weight-reducing hole 41 can effectively reduce the weight of the connection plate 4, that is, reduce the weight of the auxiliary tool. In order to facilitate the detachable connection between the air intake casing 7 and the connection plate 4, in the embodiment of the present application, as shown in FIG. Figure 3 As shown, the connection plate 4 may also be provided with a plurality of first threaded holes 42, and the plurality of first threaded holes 42 correspond to the threaded holes of the air intake casing 7 itself, and then the connection plate 4 and the air intake casing 7 may be directly threadedly fixed by fastening bolts, the first threaded holes 42 and the threaded holes of the air intake casing 7 itself. It should be understood that in the embodiment of the present application, the connection plate 4 may be welded and fixed to the rotating bracket 2. In order to facilitate the disassembly and replacement of the connection plate 4, in the embodiment of the present application, as shown in FIG. Figure 3 As shown, the connection plate 4 may also be provided with a plurality of second threaded holes 43. When in use, the connection plate 4 is threadedly fixed to the rotating bracket 2 through the second threaded holes 43 and the fastening bolts.

[0048] In an embodiment of the present application, the driving member 3 may be any component or assembly that can drive the rotating bracket 2 to rotate. For example, in an embodiment of the present application, the driving member 3 includes a rotating motor; or Figure 1 As shown, the driving member 3 can be a rotating handle. When in use, the rotating handle is manually rotated to drive the rotating bracket 2 to rotate.

[0049] In order to enable the air intake casing 7 to turn over at a uniform speed, in one embodiment of the present application, Figure 1As shown, a turbine reducer 5 is also provided between the driving member 3 and the corresponding rotating shaft of the rotating bracket 2. Through the provision of the turbine reducer 5, the air intake casing 7 can be flipped at a relatively uniform and stable speed, thereby ensuring the assembly accuracy. In the embodiment of the present application, there is no restriction on the reduction ratio of the turbine reducer 5, and a suitable reduction ratio can be selected according to demand. For example: the reduction ratio of the turbine reducer 5 can be 50:1 or 40:1, etc. Since the turbine reducer is a mature technology, it will not be described in detail here.

[0050] In order to facilitate the movement of the air intake casing 7, in one embodiment of the present application, as shown in FIG. Figure 1 and Figure 2 As shown, the workbench 1 is also provided with a plurality of sliding wheels 11. When in use, each sliding wheel 11 is in contact with the ground, and the sliding wheel 11 facilitates the operator to move the air intake casing 7. In order to further facilitate the operator to move the air intake casing 7, as shown in FIG. Figure 1 and Figure 2 As shown, the workbench 1 may also be provided with a push-pull handle 12 .

[0051] It should be understood that if the workbench 1 is provided with sliding wheels 11, the workbench 1 is also prone to move under the action of external forces during the assembly or disassembly of the air intake casing 7. In order to prevent the workbench 1 from moving during the assembly or disassembly of the air intake casing 7, each sliding wheel 11 may be a wheel capable of stopping. Figure 1 and Figure 2 As shown, the workbench 1 is further provided with a support assembly 13, and the support assembly 13 is used to increase the friction between the workbench 1 and the ground. It is easy to understand that the difficulty of moving the workbench 1 increases as the friction between the workbench 1 and the ground increases.

[0052] In the embodiment of the present application, the support assembly 13 may be any component or assembly that can increase the friction between the workbench 1 and the ground. For example, in the embodiment of the present application, the support assembly 13 may be a jack, an electric push rod, or a hydraulic push rod.

[0053] Specifically, the steps of assembling or disassembling the air intake casing 7 with the aid of the auxiliary tool proposed in the embodiment of the present application are as follows: first, the auxiliary tool is moved to the air intake casing 7 to be assembled or disassembled, and the air intake casing 7 is placed on the connecting plate 4 using a lifting device (which can be a crane or a crane), and after the air intake casing 7 and the connecting plate 4 are aligned and positioned, the air intake casing 7 and the connecting plate 4 are fixed by bolts. Furthermore, the workbench 1 is braked by the support assembly 13. Finally, the air intake casing 7 is flipped to a fixed angle by the driving member 3, and the current angle of the air intake casing 7 is locked by the positioning structure 6, so that the air intake casing 7 can be assembled or disassembled.

[0054] It should be clear that the embodiment of the present application can reduce the labor intensity when flipping the air intake casing by setting a rotating bracket and a connecting plate that can be detachably connected to the air intake casing, that is, improve work efficiency. In addition, no sliding phenomenon will occur during the process of flipping the air intake casing with the help of the rotating bracket and the connecting plate, that is, the air intake casing will not be damaged due to sliding or cause safety accidents due to sliding. The overall structure of the auxiliary tool is simple, easy to manufacture, and improves work efficiency without increasing production costs.

[0055] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A gas turbine air intake casing disassembly and assembly auxiliary tool, characterized in that: include: Workbench (1); Two rotating brackets (2) are arranged opposite to each other on the workbench (1); the axis centers of the two rotating brackets (2) coincide with each other, and the two rotating brackets (2) are both capable of rotating around their own axis centers; A connecting plate (4) is arranged between the two rotating brackets (2) and is used to form a detachable connection with the air intake casing (7); The driving member (3) is connected to the rotating shaft of any one of the two rotating brackets (2) and is used to drive the corresponding rotating bracket (2) to rotate around its own axis.

2. The gas turbine air intake casing disassembly and assembly auxiliary tool according to claim 1, characterized in that: A positioning structure (6) is also provided between the workbench (1) and any one of the two rotating brackets (2), and the positioning structure (6) is used to prevent relative rotation between the rotating bracket (2) and the workbench (1).

3. The gas turbine air intake casing disassembly and assembly auxiliary tool according to claim 2, characterized in that: The positioning structure (6) comprises: At least two positioning holes are arranged on the rotating bracket (2); A positioning column (62), wherein the first end of the positioning column (62) is adapted to the positioning hole.

4. The gas turbine air intake casing disassembly and assembly auxiliary tool according to claim 3, characterized in that: The positioning structure (6) further comprises: A positioning seat (61) is arranged on the workbench (1); the positioning column (62) and the positioning seat (61) form a sliding connection along a first direction; the first direction is parallel to the axis of the positioning column (62); A control member (64) is connected to the second end of the positioning column (62) and is used to control the positioning column (62) to perform reciprocating motion along the first direction.

5. The gas turbine air intake casing disassembly and assembly auxiliary tool according to claim 4, characterized in that: The control member (64) comprises: an elastic member (63) for applying an elastic force along the first direction to the positioning column (62), so that the positioning column (62) has a tendency to approach the positioning hole along the first direction; A control handle is arranged at the second end of the positioning column (62).

6. The gas turbine air intake casing disassembly and assembly auxiliary tool according to any one of claims 1 to 5, characterized in that: The connection plate (4) is provided with a weight-reducing hole (41), a plurality of first threaded holes (42) and a plurality of second threaded holes (43).

7. The gas turbine air intake casing disassembly and assembly auxiliary tool according to any one of claims 1 to 5, characterized in that: The driving member (3) comprises a rotating handle or a rotating motor.

8. The gas turbine air intake casing disassembly and assembly auxiliary tool according to any one of claims 1 to 5, characterized in that: A turbine reducer (5) is also provided between the driving member (3) and the rotating shaft of the corresponding rotating bracket (2).

9. The gas turbine air intake casing disassembly and assembly auxiliary tool according to any one of claims 1 to 5, characterized in that: The workbench (1) is also provided with a push-pull handle (12) and a plurality of sliding wheels (11).

10. The gas turbine air intake casing disassembly and assembly auxiliary tool according to claim 9, characterized in that: The workbench (1) is also provided with a support assembly (13); the support assembly (13) is used to increase the friction between the workbench (1) and the ground.

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