Air cooler translation fixing tool in cabin environment

Abstract

The utility model relates to the technical field of maintenance of wind driven generators, in particular to a translation fixing tool for an air cooler in a cabin environment, a connecting support is fixed on one side of the air cooler, the translation fixing tool comprises two parallel movable supports, the two movable supports are arranged on lifting lugs on the two sides of a front box body in a mirror image mode, and each movable support comprises a main body plate. The main body plates extend in the displacement direction of the air cooler, a pressing plate is arranged on the upper side of one main body plate and faces the other main body plate, a bottom plate and a clamping plate set are sequentially arranged on the lower side of the main body plate in the extending direction, the bottom plate and the pressing plate are oppositely arranged, the clamping plate set is clamped and fixed to the lifting lug, a kidney-shaped groove is formed in the middle of the bottom plate, and a first bolt is arranged in the kidney-shaped groove in a penetrating mode. By means of the limiting space formed by the first bolts, the main body plate, the pressing plate and the bottom plate, the unstable condition in the moving process of the connecting support can be limited, the air cooler is stabilized in the moving support through the connecting support, and the problem of placement of the air cooler in the cabin environment is solved.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine maintenance technology, and in particular to a tooling for moving and fixing an air cooler in a nacelle environment. Background Technology

[0002] As wind turbine generators operate for longer periods, components on the main gearbox gradually experience aging and abnormal damage. For doubly fed gearboxes with a single-stage planetary or two-stage parallel structure, which are types where the air cooler is installed on top of the main gearbox, the air cooler spans the front housing, gear ring, and rear housing of the main gearbox to ensure stability and heat dissipation. In this connection method, the air cooler must be disassembled first to separate the rear housing from the gear ring in order to address internal gearbox faults.

[0003] However, due to the limitations of the unit's nacelle structure and rack layout design, the internal space of the nacelle is small. The existing method requires the air coolers on the container to be removed and placed separately. Even if the air speed inside the nacelle is low, there will still be a certain degree of sway inside the nacelle. Some air coolers cannot be placed inside the nacelle and must be hoisted down from the tower. Although other air coolers can be placed in an open area on the platform inside the nacelle, this further compresses the working environment and poses certain safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling for moving and fixing an air cooler in an engine room environment, so that the air cooler can remain in a safe and stable state during disassembly, and does not need to occupy engine room floor space after disassembly, thereby solving the problem of safety hazards during air cooler disassembly.

[0005] To achieve the above objectives, this utility model provides a translational fixing fixture for an air cooler in an aircraft cabin environment, used to facilitate the translation of the air cooler and connecting bracket. The connecting bracket is fixed to one side of the air cooler. The translational fixing fixture includes two parallel movable brackets, which are mirror images of each other on the lifting lugs on both sides of the front housing to cooperate with the connecting brackets. Each movable bracket includes a main body plate that extends along the displacement direction of the air cooler. A pressure plate is provided on the upper side of the main body plate, and the pressure plate extends toward the other main body plate. A bottom plate and a clamping plate assembly are also provided sequentially on the lower side of the main body plate along the extension direction. The bottom plate and the pressure plate are arranged opposite to each other. The clamping plate assembly is clamped and fixed on the lifting lugs. A waist-shaped groove is provided in the middle of the bottom plate, and a first bolt passes through the waist-shaped groove. A locking nut is provided on the rod part of the first bolt that passes through the waist-shaped groove. The first bolt, the main body plate, the pressure plate, and the bottom plate form a limiting space that constrains the connecting bracket.

[0006] This tooling, in conjunction with the connecting bracket, is installed on the front housing lifting lug when the air cooler needs to be disassembled. The connecting bracket is then placed within the movable bracket of the tooling. The limiting space created by the tooling restricts the end of the connecting bracket from which the air cooler is not installed. Under the action of gravity, the cooperation between the connecting bracket and the limiting space restricts the tilt angle and lateral sway angle of the air cooler. This ensures that the connecting bracket remains relatively stable within the movable bracket during and after movement. Even if there is some swaying inside the cabin due to wind, in this embodiment, the front end of the air cooler will drop downwards under the action of gravity, and the upward tilt of the connecting bracket will fix it within the connecting bracket, preventing translational movement due to swaying.

[0007] The clamping plate assembly includes two clamping plate components with identical structures. A through hole is provided in the middle of the clamping plate component, and several mounting holes are distributed around the through hole. All of the mounting holes penetrate the clamping plate component, and a second bolt is threaded into each mounting hole. The second bolts on the two clamping plate components are respectively arranged with opposite orientations.

[0008] The clamping plate, in conjunction with the front housing lifting lug, is clamped onto the lifting lug by the relative arrangement of the second bolts. The second bolts are then rotated through the mounting hole to further improve the connection stability between the clamping plate and the lifting lug. A bolt head is provided in the through hole, and the bolt head passes through the channel on the clamping plate and the lifting lug to connect to the clamping plate on the other side, thereby initially fixing the clamping plate onto the lifting lug.

[0009] The second bolt has a wear-resistant pad at the end of its shank, which contacts the lifting lug as the second bolt moves.

[0010] The wear-resistant pad is provided at the end of the shank of the second bolt, so that the second bolt contacts the lifting lug after it moves. The wear-resistant pad can produce elastic deformation, which increases the friction performance between the contact surface of the second bolt and the lifting lug on the one hand, and protects the paint layer on the surface of the lifting lug on the other hand.

[0011] The pressure plate has multiple positioning holes that penetrate it, and the inner wall of each positioning hole is threaded.

[0012] The positioning holes are distributed at an angle on the pressure plate.

[0013] A third bolt is also inserted into the positioning hole, and the third bolt is threadedly connected to the positioning hole.

[0014] The third bolt is inserted into the positioning holes at different positions to further restrict the connecting bracket, thereby preventing the connecting bracket from tipping over when it is driven by the air cooler as a fulcrum. In other words, the third bolt can limit the tilt angle of the connecting bracket.

[0015] The main body plate includes a vertical plate and a clearance step. The vertical plate extends along the moving direction of the air cooler, and the clearance step is located on the lower side of the vertical plate and connects the bottom plate and the clamping plate assembly.

[0016] The clearance step is disposed between the vertical plate, the clamping plate and the bottom plate. The clearance step cooperates with the connecting bracket to leave a certain gap between the connecting bracket and the vertical plate.

[0017] The translation and fixing fixture also includes a traction chain. One end of the traction chain is connected to the side of the air cooler away from the connecting bracket, and the other end of the traction chain can apply force to change the tilt state of the air cooler.

[0018] In this embodiment, the translation and fixing fixture is also equipped with the traction chain. The mounting fulcrum of the traction chain is higher than the center of gravity of the air cooler. The traction chain is used to connect with the air cooler to further restrict the air cooler after it has been moved, so that the air cooler is in a stable state. It can also be used as a traction device to move the air cooler during the movement process. Before the air cooler is translated, it should be noted that there should be no interference between the third bolt and the connecting bracket of the air cooler. The traction chain is in a straight and unstressed state. During and after the movement, the traction chain can apply force to make the front end of the air cooler tilt upward and the side of the connecting bracket drop downward, so that the air cooler will not be displaced due to the sway when the cabin is in a swaying state, which significantly improves the placement stability of the air cooler.

[0019] This utility model provides a tooling for moving and fixing an air cooler in an engine room environment. To address the stability issue during disassembly of the air cooler, a movable bracket is provided to cooperate with the connecting bracket. The limiting space formed by the first bolt, the main body plate, the pressure plate, and the base plate can limit the instability of the connecting bracket during movement. Furthermore, the air cooler can be placed inside the movable bracket through the connecting bracket, thus solving the problem of air cooler placement in the engine room environment. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a speed increaser.

[0022] Figure 2 This is a schematic diagram of a tooling for translating and fixing an air cooler in an engine room environment, which is a schematic diagram of the present invention.

[0023] Figure 3 This is a partially enlarged schematic diagram of a jet cooler translation and fixing fixture installed on a gearbox in an engine room environment, according to this utility model.

[0024] Figure 4 This utility model presents a schematic diagram of the state of an air cooler after translation and fixing in an engine room environment.

[0025] Figure 5 This is an isometric schematic diagram of the cooperation between the air cooler translation and fixing fixture and the air cooler in an engine room environment according to this utility model.

[0026] Figure 6 This is a front view of the air cooler translation and fixing fixture and its cooperation with the air cooler in an engine room environment according to this utility model.

[0027] Figure 7 This is an isometric structural diagram of a wind cooler translation and fixing fixture in an engine room environment, according to this utility model.

[0028] Figure 8 This is a top view of a jet cooler translation and fixing fixture in an engine room environment, according to this utility model.

[0029] Figure 9 This is a schematic diagram of the translated state of another embodiment of the air cooler translation and fixing fixture in an engine room environment according to this utility model.

[0030] 1. Air cooler; 2. Connecting bracket; 3. Speed ​​increaser; 4. Front housing lifting lug; 5. Moving bracket; 6. Main body plate; 7. Pressure plate; 8. Base plate; 9. Clamping plate assembly; 10. Waist-shaped groove; 11. First bolt; 12. Locking nut; 13. Limiting space; 14. Clamping plate; 15. Through hole; 16. Mounting hole; 17. Second bolt; 18. Wear-resistant pad; 19. Positioning hole; 20. Third bolt; 21. Vertical plate; 22. Clearance step; 23. Traction chain. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0032] Please see Figures 1 to 8 This utility model provides a translation and fixing fixture for an air cooler in an aircraft cabin environment, used to facilitate the translation of an air cooler 1 and a connecting bracket 2. The connecting bracket 2 is fixed to one side of the air cooler 1. The translation and fixing fixture includes two parallel movable brackets 5, which are mirror images of the lifting lugs 4 on both sides of the front housing to cooperate with the connecting bracket 2. Each movable bracket 5 includes a main body plate 6, which extends along the displacement direction of the air cooler 1. A pressure plate 7 is provided on the upper side of the main body plate 6, and the pressure plate 7 extends towards the other main body plate 6. The main body plate 6 is further provided with a bottom plate 8 and a clamping plate group 9 along its extension direction on its lower side. The bottom plate 8 is arranged opposite to the pressure plate 7. The clamping plate group 9 is clamped and fixed on the lifting lug 4. The bottom plate 8 has a waist-shaped groove 10 in the middle. A first bolt 11 passes through the waist-shaped groove 10. A locking nut 12 is provided on the rod part of the first bolt 11 that passes through the waist-shaped groove 10. The first bolt 11, the main body plate 6, the pressure plate 7 and the bottom plate 8 form a limiting space 13 for constraining the connecting bracket 2.

[0033] In this embodiment, when it is necessary to disassemble the air cooler 1 and leave operating space for processing the gearbox 3, the tooling disclosed herein can be used to install the two movable supports 5 on the lifting lugs 4 of the front housing. The movable supports 5 cooperate with the connecting support 2 of the air cooler 1. The fixing bolts on the connecting support 2 are released, and then the translation of the air cooler 1 can begin. The pressure plate 7 is used to limit the connecting support 2 from above, preventing the air cooler 1 from tilting forward and overturning when it moves and is fixed. The tilting angle is... The angle α is 0° to 10°. The waist-shaped groove 10 opened in the middle of the base plate 8 is used to cooperate with the first bolt 11. The first bolt 11 can be positioned at different positions in the waist-shaped groove 10 by the locking nut 12, thereby meeting the limiting requirements of the connecting brackets 2 of different widths. This allows the connecting brackets 2 of different widths to also be laterally restricted. After the movement is completed, the air cooler 1 can cause the connecting bracket 2 to naturally tilt up under the action of gravity. This, in conjunction with the limiting space 13, can restrict the moving bracket 5 in all directions.

[0034] Furthermore, the clamping plate assembly 9 includes two clamping plate members 14 with identical structures. A through hole 15 is provided in the middle of the clamping plate member 14. A plurality of mounting holes 16 are distributed around the through hole 15. The plurality of mounting holes 16 penetrate the clamping plate member 14. A second bolt 17 is threaded into each mounting hole 16. The second bolts 17, which are respectively provided on the two clamping plate members 14, are oriented in opposite directions.

[0035] The clamping plate 14 is provided with the through hole 15, which is adapted to the slot on the lifting lug 4 to facilitate the installation of a bolt head to pass through the lifting lug 4. The bolt head installed in the through hole 15 is not shown in the accompanying drawings of this application, so that the clamping plate assembly 9 is fixed on the lifting lug 4. The mounting hole 16 is internally threaded with the second bolt 17. After the clamping plate assembly 9 is positioned on the lifting lug 4, the clamping plate assembly 9 can be clamped and fixed on the lifting lug 4 by the relative movement of the second bolts 17 and the bolt head in the through hole 15.

[0036] Furthermore, the end of the shank of the second bolt 17 is provided with a wear-resistant pad 18, which contacts the lifting lug 4 as the second bolt 17 moves.

[0037] The wear-resistant pad 18 is disposed at the end of the shank of the second bolt 17. On the one hand, it works in conjunction with the screwing process of the second bolt 17 to improve the friction performance between the second bolt 17 and the lug 4 through the wear-resistant pad 18. On the other hand, it can also prevent the second bolt 17 from damaging the paint surface of the lug 4.

[0038] Furthermore, the pressure plate 7 has a plurality of positioning holes 19 that penetrate the pressure plate 7, and the inner wall of the positioning holes 19 is threaded.

[0039] The positioning hole 19 allows the third bolt 20 to be displaced via its internal thread.

[0040] Furthermore, a third bolt 20 is inserted into the positioning hole 19, and the third bolt 20 is threadedly connected to the positioning hole 19.

[0041] The third bolt 20 can restrict the top of the connecting bracket 2, so that the air cooler 1 will not tip over significantly during the movement or after placement. It should be noted that the third bolt 20 can be inserted into any of the positioning holes 19 as needed to restrict the top of different types of moving brackets 5 according to the type of moving bracket 5. Similarly, the depth of the third bolt 20 inserted into the positioning hole 19 can also be adjusted as needed. On the one hand, it can limit the forward tilting angle of the connecting bracket 2 and the air cooler 1, and on the other hand, it can adapt to connecting brackets 2 of different thicknesses.

[0042] Furthermore, the main body plate 6 includes a vertical plate 21 and a clearance step 22. The vertical plate 21 extends along the moving direction of the air cooler 1, and the clearance step 22 is located on the lower side of the vertical plate 21 and connects the bottom plate 8 and the clamping plate group 9.

[0043] In this embodiment, the avoidance step 22 is provided on the side of the vertical plate 21 near the bottom plate 8 and the clamping plate group 9. The avoidance step 22 prevents the movable support 5 from directly contacting the vertical plate 21, thereby reducing the interference of the vertical plate 21 on the movable support 5.

[0044] The specific steps are as follows:

[0045] Two air cooler movable brackets 5 are respectively mounted on the lifting lugs 4 on both sides of the front housing of the gearbox. Bolts are passed through the through holes 15 and the holes of the lifting lugs 4 and connected and locked with nuts. Then, multiple second bolts 17 are used to press the sides of the lifting lugs 4 with the mounting holes 16. At this time, the movable brackets 5 are fixed on the lifting lugs 4 of the front housing of the gearbox. The third bolt 20 is inserted to restrict the top of the connecting bracket 2. The first bolt 11 is inserted to achieve lateral restriction of the connecting bracket 2. Before releasing the fixing of the connecting bracket 2, it is confirmed that there is no interference between the third bolt 20 and the connecting bracket 2, so that the air cooler 1 can be moved on the movable bracket 5, and the air cooler 1 and the connecting bracket 2 will not detach from the movable bracket 5.

[0046] Furthermore, the translation and fixing fixture also includes a traction chain 23, one end of which is connected to the side of the air cooler 1 away from the connecting bracket 2, and the other end of which can apply force to change the tilt state of the air cooler 1.

[0047] Please see Figure 9 In another embodiment, the translation and fixing fixture is also equipped with the traction chain 23. In this embodiment, the moving bracket 5 is installed first, and the traction chain 23 is installed. The mounting fulcrum of the traction chain 23 is higher than that of the air cooler 1. The traction chain 23 is connected to the air cooler 1 and is in a taut state. After confirming that it is stable, the connecting bracket 2 of the air cooler 1 is released from the fixation. Subsequently, the traction chain 23 pulls the air cooler 1 to move within the moving bracket 5 until sufficient operating space is left. During the movement, the moving bracket 5 restricts the tilt angle of the connecting bracket 2 of the air cooler 1. In this embodiment, the air cooler 1 always maintains an upward tilted posture, with a tilt angle β of 0° to 10°, preferably 5° to 8°, so that the air cooler 1 will be in a relatively stable state during translation or movement on the moving bracket 5, without occupying the floor space inside the cabin, and without worrying about the air cooler detaching from the moving bracket 2 due to displacement inside the cabin.

[0048] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A tooling for translating and fixing an air cooler in an engine room environment, used to facilitate the translation of an air cooler (1) and a connecting bracket (2), wherein the connecting bracket (2) is fixed to one side of the air cooler (1), characterized in that, The translational fixing fixture includes two parallel movable supports (5), which are mirror images of each other on the lifting lugs on both sides of the front housing to cooperate with the connecting bracket (2). Each movable support (5) includes a main body plate (6), which extends along the displacement direction of the air cooler (1). A pressure plate (7) is provided on the upper side of the main body plate (6), which extends toward the other main body plate (6). A bottom plate (8) and a clamping plate assembly (9) are also provided sequentially on the lower side of the main body plate (6) along the extension direction. The plate (8) is arranged opposite to the pressure plate (7), the clamping plate group (9) is clamped and fixed on the front box lifting lug (4), the bottom plate (8) has a waist-shaped groove (10) in the middle, the waist-shaped groove (10) is provided with a first bolt (11), the first bolt (11) is provided with a locking nut (12) through the rod part of the waist-shaped groove (10), the first bolt (11), the main plate (6), the pressure plate (7) and the bottom plate (8) form a limiting space (13) for a constraint connection bracket (2).

2. The air cooler translation and fixing fixture in the cabin environment as described in claim 1, characterized in that, The clamping plate assembly (9) includes two clamping plate members (14) with identical structures. A through hole (15) is provided in the middle of the clamping plate member (14). A plurality of mounting holes (16) are distributed around the through hole (15). The plurality of mounting holes (16) all penetrate the clamping plate member (14). A second bolt (17) is threaded into each mounting hole (16). The second bolts (17) respectively set on the two clamping plate members (14) are oriented in opposite directions.

3. The air cooler translation and fixing fixture in the cabin environment as described in claim 2, characterized in that, The end of the shank of the second bolt (17) is also provided with a wear-resistant pad (18), which moves with the second bolt (17) to contact the front housing lug (4).

4. The air cooler translation and fixing fixture in the cabin environment as described in claim 1, characterized in that, The pressure plate (7) has a plurality of positioning holes (19) that penetrate the pressure plate (7), and the inner wall of the positioning hole (19) is threaded.

5. The air cooler translation and fixing fixture in the cabin environment as described in claim 4, characterized in that, A third bolt (20) is also inserted into the positioning hole (19), and the third bolt (20) is threadedly connected to the positioning hole (19).

6. The air cooler translation and fixing fixture in the cabin environment as described in claim 1, characterized in that, The main plate (6) includes a vertical plate (21) and a step (22). The vertical plate (21) extends along the moving direction of the air cooler (1). The step (22) is located on the lower side of the vertical plate (21) and connects the bottom plate (8) and the clamping plate assembly (9).

7. The air cooler translation and fixing fixture in the cabin environment as described in claim 1, characterized in that, The translation and fixing fixture also includes a traction chain (23), one end of which is connected to the side of the air cooler (1) away from the connecting bracket (2), and the other end of which can apply force to change the tilt state of the air cooler (1).

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