Welding tool for flow guide cover of large fan

Abstract

The utility model discloses a welding tool for a large fan flow guide cover, and belongs to the field of fan flow guide cover welding. The welding tool for the flow guide cover of the large fan comprises a flow guide shell and fan blades arranged in the flow guide shell, sleeves are arranged in the fan blades and make contact with the inner surfaces of the fan blades through supporting structures, the outer surfaces of the sleeves are fixedly connected with connecting blocks, the inner sides of the connecting blocks are movably connected with clamping jaws through pin shafts, and the clamping jaws are fixedly connected with the flow guide shell. The sides, away from the connecting blocks, of the clamping jaws extend to the outer side of the flow guide shell and make contact with the surface of the flow guide shell. The tool can ensure that the axes of the fan blades are aligned, the fan blades are effectively fixed, a foundation is provided for fixing and aligning the fan blades by arranging the flow guide shell, the fan blades and the sleeves and the supporting structures in the fan blades, the tool can adapt to the fan blades of different sizes due to the design of the clamping jaws, synchronous swing is achieved through the transmission structure, and the machining efficiency is improved. Therefore, the fixing stability and reliability are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan fairing welding technical field especially large -scale fan fairing welding frock. BACKGROUND

[0002] The welding of the fan fairing is a process involving multiple process links and technical requirements, and the fan fairing is a device for guiding airflow, reducing energy loss and protecting fan blades. It is usually made of steel and other metal materials, has certain strength and toughness, and can still work normally in harsh environment.

[0003] For example, the patent with the patent number CN118664827A disclosed by China patent network, the patent name is: a wind power guide fairing processing device, including installation box, fixed mold, sliding frame, sliding plate, mounting plate, air cylinder and movable die, etc., can realize automatic spraying of release agent, injection molding processing to guide fairing and other functions.

[0004] But the connecting mode of the existing fan blade and the fairing is single, the fan blade directly inserted in the fairing is easy to be affected by gravity, resulting in the phenomenon of falling deformation of the bottom fan blade, and the directly welded fan blade is easy to appear eccentric state between the fairing after connection, which affects the airflow guiding effect. Utility model content

[0005] The utility model aims at solving the problem of the direct insertion connection mode in the prior art that is easy to cause the eccentricity of the shaft, and provides the large -scale fan fairing welding frock.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] The large -scale fan fairing welding frock includes the fairing outer shell;

[0008] The fan blade is arranged in the fairing outer shell;

[0009] The inside of the fan blade is provided with a sleeve, the sleeve is in contact with the inner surface of the fan blade through the supporting structure, the outer surface of the sleeve is fixedly connected with a connecting block, the inner side of the connecting block is movably connected with a claw through a pin shaft, the side away from the connecting block of the claw extends to the outer side of the fairing outer shell and is in contact with the surface of the fairing outer shell, the inside of the sleeve is provided with a transmission structure, and the transmission structure can drive multiple claws to swing synchronously.

[0010] As a preferred technical scheme of the present application, the transmission structure comprises a support fixedly connected to the surface of the sleeve, an electric telescopic rod fixedly connected to the side of the support away from the sleeve, an extension rod fixedly connected to the output end of the electric telescopic rod, and a taper block fixedly connected to the surface of the extension rod.

[0011] As a preferred technical scheme of the present application, the support structure comprises a movable block fixedly connected to the surface of the sleeve, a support plate movably connected to the surface of the movable block through a pin shaft, and the inner surface of the support plate being in contact with the inner surface of the fan blade.

[0012] As a preferred technical scheme of the present application, the extension rod penetrates through the sleeve and extends into the interior of the fan blade at one end thereof away from the electric telescopic rod, and an extrusion sleeve is fixedly connected to the end of the extension rod outside the sleeve.

[0013] As a preferred technical scheme of the present application, a vertical plate is mounted on the surface of the support plate, a roller is movably connected to the surface of the vertical plate through a pin shaft, the support plate is provided in a hollowed-out shape, and the roller is in contact with the inner wall of the fan blade through the hollowed-out part of the surface of the support plate.

[0014] As a preferred technical scheme of the present application, the inclined plate is composed of a bending part and a parallel part, the bending part is provided in an inwardly inclined state, the parallel part is provided at one end of the bending part away from the claw, and the parallel part is in contact with the surface of the taper block after the bending part is inclined.

[0015] Compared with the prior art, the large fan flow guide cover welding tool has the following beneficial effects:

[0016] 1. The large fan flow guide cover welding tool can ensure that the fan blade axis is aligned and effectively fix the fan blade, provides a basis for the fixation and alignment of the fan blade by arranging the flow guide shell and the fan blade, the sleeve inside the fan blade and the support structure, and the design of the claw enables the tool to adapt to fan blades of different sizes and realize synchronous swinging through the transmission structure, thereby enhancing the stability and reliability of fixation.

[0017] 2. The large fan flow guide cover welding tool realizes synchronous control of the claw through the combination of the electric telescopic rod, the extension rod and the taper block, simplifies the operation process, improves work efficiency, the accurate control of the electric telescopic rod ensures that the claw can accurately fix the fan blade, and the contact between the taper block and the inclined plate ensures the synchronous swinging of the claw, thereby avoiding errors caused by asynchronization.

[0018] 3、The large fan fairing welding tool provides additional support for the fan blades through the combination of the movable block and the support plate, which helps to disperse the weight of the fan blades and reduce deformation caused by gravity. At the same time, the contact between the support plate and the inner surface of the fan blade also enhances the stability of the fixation, making it difficult for the fan blade to move during the welding process.

[0019] 4、The large fan fairing welding tool, through the extension rod penetrating the sleeve and extending to the inside of the fan blade, not only provides an installation position for the conical block, but also further enhances the stability of the support structure by contacting the inner side of the support plate through the extrusion sleeve, which helps to ensure that the fan blade maintains the correct position during the welding process and avoids errors caused by shaking

[0020] 5、The large fan fairing welding tool, through the design of the vertical plate and the roller on the surface of the support plate, makes the tool better adapt to the shape of the inner wall of the fan blade. The roller contacts the inner wall of the fan blade through the hollow part, reducing friction and wear, and also helping to maintain the stability and positional accuracy of the fan blade. Not only does it improve the durability of the tool, but it also makes the tool more widely applicable to fan blades of different shapes and sizes.

[0021] 6、The large fan fairing welding tool, by setting the inclined plate composed of a bent part and a parallel part, the inclined plate can better contact the conical block and transfer force. The bent part is inclined inward, so that the parallel part can be parallel to the extension rod and contact the surface of the conical block. Not only does it ensure the synchronous swinging of the clamping jaw, but it also improves the efficiency and stability of the transmission. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structure schematic view of the utility model;

[0023] Figure 2 It is a rear view structure schematic view of the utility model;

[0024] Figure 3 It is a cross-sectional structure schematic view of the utility model;

[0025] Figure 4 It is a Figure 2 Enlarged structure schematic view of A place in the utility model.

[0026] In the figure: 1, fairing outer shell; 2, fan blade; 3, sleeve; 4, support structure; 5, connecting block; 6, clamping jaw; 7, transmission structure; 8, bracket; 9, electric telescopic rod; 10, extension rod; 11, conical block; 12, inclined plate; 13, movable block; 14, support plate; 15, extrusion sleeve; 16, vertical plate; 17, roller. DETAILED DESCRIPTION

[0027] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative labor fall within the scope of the present application. Embodiments

[0028] With reference to Figures 1-4 The large fan fairing welding tool includes a fairing shell 1.

[0029] The fan blade 2 is arranged in the fairing shell 1.

[0030] The inner part of the fan blade 2 is provided with a sleeve 3 which is in contact with the inner surface of the fan blade 2 through a support structure 4, the outer surface of the sleeve 3 is fixedly connected with a connecting block 5, the inner side of the connecting block 5 is movably connected with a claw 6 through a pin shaft, the side away from the connecting block 5 of the claw 6 extends to the outside of the flow guide shell 1 and is in contact with the surface of the flow guide shell 1, the inside of the sleeve 3 is provided with a transmission structure 7 which can drive multiple claws 6 to swing synchronously, so as to ensure that the shaft center of the fan blade 2 is aligned and the fan blade 2 is effectively fixed, the design of the claw 6 makes the tooling adapt to fan blades 2 of different sizes and realize synchronous swinging through the transmission structure 7, thereby enhancing the stability and reliability of the fixation, the transmission structure 7 includes a bracket 8 fixedly connected to the surface of the sleeve 3, the side away from the sleeve 3 of the bracket 8 is fixedly connected with an electric telescopic rod 9, the output end of the electric telescopic rod 9 is fixedly connected with an extension rod 10, the surface of the extension rod 10 is fixedly connected with a tapered block 11, the side close to the connecting block 5 of the claw 6 is fixedly connected with an inclined plate 12, the side away from the claw 6 of the inclined plate 12 extends to the outside of the extension rod 10 and is flush with the extension rod 10 and in contact with the surface of the tapered block 11, the support structure 4 includes a movable block 13 fixedly connected to the surface of the sleeve 3, the surface of the movable block 13 is movably connected with a support plate 14 through a pin shaft, the side away from the movable block 13 of the support plate 14 is in contact with the inner surface of the fan blade 2, the end away from the electric telescopic rod 9 of the extension rod 10 penetrates through the sleeve 3 and extends to the inside of the fan blade 2, the end of the extension rod 10 located outside the sleeve 3 is fixedly connected with a squeezing sleeve 15, the outer surface of the squeezing sleeve 15 is in contact with the inner side of the support plate 14, the surface of the support plate 14 is provided with a vertical plate 16, the surface of the vertical plate 16 is movably connected with a roller 17 through a pin shaft, the support plate 14 is provided in a hollow shape, the roller 17 is in contact with the inner wall of the fan blade 2 through the hollow part of the surface of the support plate 14, the inclined plate 12 is composed of a bending part and a parallel part, the bending part is provided in an inwardly inclined state, the parallel part is provided at the end away from the claw 6 of the bending part, the parallel part is in parallel with the extension rod 10 and in contact with the surface of the tapered block 11 after the bending part is inclined.

[0031] Specifically, the large fan fairing welding tool is in the preparation stage when working / using: the fan blade 2 is placed inside the fairing shell 1, at this time, the sleeve 3 is located inside the fan blade 2 and keeps contact with the inner surface of the fan blade 2 through the support structure 4, the clamping jaw 6 is movably connected to the outer surface of the sleeve 3 through the connecting block 5 and the pin shaft, and the clamping jaw 6 is in a relaxed state and does not contact the surface of the fairing shell 1 initially, and the electric telescopic rod 9 is in an inactive state; when it is necessary to fix the fan blade 2, the electric telescopic rod 9 is started, the output end of the electric telescopic rod 9 starts to shrink, driving the extension rod 10 to move, and with the movement of the extension rod 10, the conical block 11 fixed on the surface of the extension rod 10 also starts to push back, the conical block 11 gradually contacts the inclined plate 12 on each clamping jaw 6, and since the bending part is arranged to be inclined inward, the conical block 11 will force the inclined plate 12 and the clamping jaw 6 connected thereto to swing outward, and with the swinging of the inclined plate 12, the clamping jaw 6 gradually extends to the outside of the fairing shell 1 and finally contacts the surface of the fairing shell 1, and since the plurality of clamping jaws 6 swing synchronously, they jointly fix the fan blade 2 firmly inside the fairing shell 1, ensuring that the shaft center of the fan blade 2 is aligned, and at the same time when the clamping jaw 6 fixes the fan blade 2, the support structure 4 also plays a connecting role, the movable block 13 contacts the inner surface of the fan blade 2 through the support plate 14 connected by the pin shaft, providing additional support force, and the extension rod 10 is also provided with the extrusion sleeve 15, which further presses the support plate 14 to make it swing around the movable block 13 until it contacts the inner wall of the fan blade 2.

[0032] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. Large fan fairing welding tool, comprising a fairing shell (1); The fan blade (2) is provided inside the fairing shell (1); characterized in that The inside of the fan blade (2) is provided with a sleeve (3), the sleeve (3) is in contact with the inner surface of the fan blade (2) through a support structure (4), the outer surface of the sleeve (3) is fixedly connected with a connecting block (5), the inner side of the connecting block (5) is movably connected with a jaw (6) through a pin shaft, the side of the jaw (6) away from the connecting block (5) extends to the outside of the fairing shell (1) and is in contact with the surface of the fairing shell (1), the inside of the sleeve (3) is provided with a transmission structure (7), the transmission structure (7) can drive multiple jaws (6) to swing synchronously.

2. The large fan cowl welding fixture of claim 1, wherein, The transmission structure (7) comprises a bracket (8) fixedly connected to the surface of the sleeve (3), the side of the bracket (8) away from the sleeve (3) is fixedly connected with an electric telescopic rod (9), the output end of the electric telescopic rod (9) is fixedly connected with an extension rod (10), the surface of the extension rod (10) is fixedly connected with a tapered block (11), the side of the jaw (6) close to the connecting block (5) is fixedly connected with an inclined plate (12), the side of the inclined plate (12) away from the jaw (6) extends to the outside of the extension rod (10) and is flush with the extension rod (10) and in contact with the surface of the tapered block (11).

3. The large fan cowl welding fixture of claim 2, wherein, The support structure (4) comprises a movable block (13) fixedly connected to the surface of the sleeve (3), the surface of the movable block (13) is movably connected with a support plate (14) through a pin shaft, the side of the support plate (14) away from the movable block (13) is in contact with the inner surface of the fan blade (2).

4. The large fan cowl welding fixture of claim 3, wherein, The end of the extension rod (10) away from the electric telescopic rod (9) penetrates the sleeve (3) and extends to the inside of the fan blade (2), the end of the extension rod (10) outside the sleeve (3) is fixedly connected with a pressing sleeve (15), the outer surface of the pressing sleeve (15) is in contact with the inner side of the support plate (14).

5. The large fan cowl welding fixture of claim 3, wherein, The surface of the support plate (14) is provided with a vertical plate (16), the surface of the vertical plate (16) is movably connected with a roller (17) through a pin shaft, the support plate (14) is provided in a hollow shape, the roller (17) is in contact with the inner wall of the fan blade (2) through the hollow part of the surface of the support plate (14).

6. The large fan cowl welding fixture of claim 2, wherein, The inclined plate (12) is composed of a bending part and a parallel part, the bending part is provided in an inwardly inclined state, the parallel part is provided at the end of the bending part away from the jaw (6), the parallel part is in parallel with the extension rod (10) and in contact with the surface of the tapered block (11) after the bending part is inclined.

Images