Exhaust cone welding apparatus

Abstract

The utility model discloses an exhaust cone welding device relates to engine technical field, include: exhaust conic body limit part, including the first limit ring structure and second limit ring structure of setting in the outer wall of exhaust cone body, and the first limit ring structure is close to the smaller end of diameter of exhaust cone body, and the second limit ring structure is close to the larger end of diameter of exhaust cone body, blade limit part, to blade limit fixed, and blade limit part is located between the first limit ring structure and second limit ring structure, respectively with first limit ring structure and second limit ring structure detachable connection, support ring limit part, to support ring limit fixed, and support ring limit part is connected in blade limit part through second limit ring structure, and support ring limit part and second limit ring structure are detachable connection, and exhaust conic body limit part, blade limit part and support ring limit part all are set with welding avoidance hole, are used for welding head to stretch into to the part welding, guarantee the positioning relation of each part of exhaust cone, has promoted the welding quality of exhaust cone.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to an exhaust cone welding device. Background Technology

[0002] The exhaust cone, as an important component of the engine, plays a role in expelling exhaust gases, reducing internal engine pressure, and minimizing noise pollution. The exhaust cone is cone-shaped, and in a lightweight version, it is a cone-shaped cylinder. Furthermore, the blades of the exhaust cone have a hollow structure, all of which increase the difficulty of welding and manufacturing the exhaust cone. Welding is difficult to position, and the welded parts are hard to constrain, resulting in inaccurate blade positioning and significant deformation during welding. Ultimately, the welded product fails to meet design requirements.

[0003] Therefore, how to improve the welding quality of the exhaust cone is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a welding device for exhaust cones, which improves the welding quality of exhaust cones.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An exhaust cone welding device is used for welding and positioning the exhaust cone body, blades, and support ring in an exhaust cone, comprising:

[0007] The exhaust cone limiting part includes a first limiting ring structure and a second limiting ring structure for sleeved on the outer wall of the exhaust cone, wherein the first limiting ring structure is close to the smaller diameter end of the exhaust cone, and the second limiting ring structure is close to the larger diameter end of the exhaust cone.

[0008] A blade limiting part is used to limit and fix the blade, and the blade limiting part is located between the first limiting ring structure and the second limiting ring structure, and is detachably connected to the first limiting ring structure and the second limiting ring structure respectively.

[0009] A support ring limiting part is used to limit and fix the support ring. The support ring limiting part is connected to the blade limiting part through the second limiting ring structure, and the support ring limiting part and the second limiting ring structure are detachably connected. The exhaust cone limiting part, the blade limiting part and the support ring limiting part are all provided with welding avoidance holes for the welding head to extend into and weld the parts.

[0010] Optionally, in the above-mentioned exhaust cone welding device, the first limiting ring structure includes a first limiting ring, a first fixing ring, and a first connecting post. The first limiting ring has a first limiting hole for fitting onto the exhaust cone, and the first fixing ring has a bolt hole for mounting and fixing to the blade limiting part. The first limiting ring is connected to the first fixing ring through the first connecting post. Multiple first connecting posts are provided, and there is a welding clearance hole between two adjacent first connecting posts.

[0011] Optionally, in the above-mentioned exhaust cone welding device, the second limiting ring structure includes a limiting block, a second fixing ring, and a second connecting post. Multiple limiting blocks are provided, and each limiting block is distributed on the same circumference with the rotation center of the exhaust cone as the center. Each limiting block is attached to the outer wall surface of the exhaust cone, and each limiting block is connected to the second fixing ring through a second connecting post. The welding avoidance hole is provided between two adjacent second connecting posts.

[0012] Optionally, in the above-mentioned exhaust cone welding device, three limiting blocks are provided, the three limiting blocks are evenly distributed on the same circumference, and the ends of the limiting blocks are provided with an annular curved surface that is adapted to the outer wall surface of the exhaust cone.

[0013] Optionally, in the above-mentioned exhaust cone welding device, the blade limiting part includes a blade limiting plate and a limiting pin. The blade limiting plate is used to fit against the end face of the blade away from the exhaust cone, and the blade limiting plate has a pin hole that cooperates with the limiting pin. When the blade fits against the blade limiting plate, the pin holes are arranged on both sides of the blade so that the limiting pin is inserted into the pin hole and the blade is locked and positioned by the limiting pin. The number of blade limiting plates is the same as the number of blades and corresponds one-to-one. Each blade limiting plate is distributed on the same circumference with the rotation center of the exhaust cone as the center.

[0014] Optionally, in the above-mentioned exhaust cone welding device, when the blade is attached to the blade limiting plate, two pin holes are arranged on both sides of the blade, and the pin holes on both sides of the blade are symmetrically distributed.

[0015] Optionally, in the above-mentioned exhaust cone welding device, the blade limiting part further includes a base, each of the blade limiting plates is arranged at intervals on the base, two adjacent blade limiting plates have the welding avoidance hole, and the upper and lower ends of the base have mounting holes for connection and fixation.

[0016] Optionally, in the above-mentioned exhaust cone welding device, the support ring limiting part includes a support ring limiting plate, the support ring limiting plate has an annular limiting groove, the center of the annular limiting groove is located on the exhaust cone rotation axis, and one end of the support ring extending out of the exhaust cone is inserted into the annular limiting groove.

[0017] Optionally, in the above-mentioned exhaust cone welding device, the support ring limiting part further includes a support ring limiting seat and a third connecting post. The support ring limiting plate is connected to the support ring limiting seat through the third connecting post, and there is a welding avoidance hole between two adjacent third connecting posts.

[0018] Optionally, in the above-mentioned exhaust cone welding device, the first limiting ring structure, the second limiting ring structure, and the support ring limiting part are all integral structures.

[0019] In use, the exhaust cone welding device provided by this utility model has a first limiting ring structure and a second limiting ring structure of the exhaust cone limiting part respectively fitted onto the smaller diameter end and the larger diameter end of the exhaust cone. The blade limiting part, used for limiting and fixing the blades, is located between the first and second limiting ring structures and is installed and fixed to them. The support ring limiting part limits and fixes the support ring in the exhaust cone. The support ring limiting part is installed and fixed to the second limiting ring structure. The first limiting ring structure, the second limiting ring structure, the blade limiting part, and the support ring limiting part are installed and fixed as a whole, realizing the connection between the exhaust cone, blades, and support ring in the exhaust cone via the first limiting ring structure. The limiting ring structure, the second limiting ring structure, the blade limiting part, and the support ring limiting part ensure the positioning and fixation of the exhaust cone, blade, and support ring during the welding process. The exhaust cone limiting part, blade limiting part, and support ring limiting part are all provided with welding clearance holes, allowing the welding head to extend through these holes for welding. Therefore, the exhaust cone welding device provided by this utility model ensures the positioning relationship between the exhaust cone, blade, and support ring, and exhibits good stability during the welding process. It constrains the exhaust cone, blade, and support ring, suppressing excessive deformation during welding, improving the welding quality of the exhaust cone, and increasing the product qualification rate. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the exhaust cone welding device disclosed in the embodiment of this utility model;

[0022] Figure 2This is a schematic diagram of the first limiting ring structure and the second limiting ring structure disclosed in the embodiments of this utility model;

[0023] Figure 3 This is a schematic diagram of the support ring limiting part disclosed in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the exhaust cone structure.

[0025] Figure label:

[0026] 100 is the first limiting ring structure, 110 is the first limiting ring, 120 is the first fixing ring, and 130 is the first connecting post;

[0027] 200 is the second limiting ring structure, 210 is the limiting block, 220 is the second fixing ring, and 230 is the second connecting post;

[0028] 300 is the blade limiting part, 310 is the blade limiting plate, 320 is the limiting pin, and 330 is the base;

[0029] 400 is the support ring limiting part, 410 is the support ring limiting plate, 420 is the support ring limiting seat, and 430 is the third connecting column;

[0030] 500 is a welding clearance hole;

[0031] 10 is the exhaust cone, 20 is the blade, and 30 is the support ring. Detailed Implementation

[0032] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0033] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0035] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The core of this invention lies in providing a welding device for exhaust cones, which improves the welding quality of exhaust cones.

[0038] like Figure 1 and Figure 4As shown in the figure, this utility model discloses an exhaust cone welding device, including: an exhaust cone limiting part, a blade limiting part 300, a support ring limiting part 400, and a welding clearance hole 500. The exhaust cone limiting part includes a first limiting ring structure 100 and a second limiting ring structure 200. The first limiting ring structure 100 and the second limiting ring structure 200 are installed and fixed to the exhaust cone 10 by being sleeved on the outer wall of the exhaust cone 10. The first limiting ring structure 100 is closer to the smaller diameter end of the exhaust cone 10, and the second limiting ring structure 200 is closer to the larger diameter end of the exhaust cone 10. The blade limiting part 300 is detachably installed and fixed to the first limiting ring structure 100 and the second limiting ring structure 200 respectively. The blade limiting part 300 is located between the first limiting ring structure 100 and the second limiting ring structure 200, and limits and fixes the blade 20 in the exhaust cone. The support ring limiting part 400 is also detachably connected to the second limiting ring structure 200. The support ring limiting part 400 positions the support ring 30 in the exhaust cone. The first limiting ring structure 100, the second limiting ring structure 200, the blade limiting part 300 and the support ring limiting part 400 are installed and fixed as a whole, realizing the limiting and fixing of the exhaust cone 10, the blade 20 and the support ring 30 in the exhaust cone through the limiting and fixing between the first limiting ring structure 100, the second limiting ring structure 200, the blade limiting part 300 and the support ring limiting part 400, ensuring the positioning and fixing of the exhaust cone 10, the blade 20 and the support ring 30 during the welding process. The exhaust cone limiting part, the blade limiting part 300 and the support ring limiting part 400 are all provided with welding clearance holes 500 so that the welding head can be inserted through the welding clearance holes 500 for welding.

[0039] like Figure 2 As shown, the first limiting ring structure 100 includes a first limiting ring 110, a first fixing ring 120, and a first connecting post 130. The first limiting ring 110 has a first limiting hole for fitting onto the exhaust cone 10. The center of the first limiting hole is located on the rotation axis of the exhaust cone 10. The first limiting ring structure 100 is installed and fixed to the exhaust cone 10 through the first limiting hole. The first fixing ring 120 has bolt holes for installation and fixing to the blade limiting part 300, so that the first limiting ring structure 100 and the blade limiting part 300 are detachably connected through the bolt holes and bolts. The first limiting ring 110 is fixed to the first fixing ring 120 through the first connecting post 130. Multiple first connecting posts 130 are provided, and each first connecting post 130 is distributed at intervals, so that any two adjacent first connecting posts 130 form a welding clearance hole 500.

[0040] like Figure 2As shown, the second limiting ring structure 200 includes a limiting block 210, a second fixing ring 220, and a second connecting post 230. Multiple limiting blocks 210 are provided, each distributed at intervals on the same circumference with the rotation center of the exhaust cone 10 as its center. Each limiting block 210 fits against the outer wall surface of the exhaust cone 10, thus securing the second limiting ring structure 200 to the exhaust cone 10. Each limiting block 210 is connected and fixed to the second fixing ring 220 via a second connecting post 230. Adjacent second connecting posts 230 have welding clearance holes 500. The second fixing ring 220 also has bolt holes, allowing the second limiting ring structure 200 to be installed and fixed to the blade limiting part 300 via bolt engagement through the bolt holes of the second fixing ring 220.

[0041] In one specific embodiment, three limiting blocks 210 are provided, and the three limiting blocks 210 are evenly distributed on the same circumference. The three limiting blocks 210 form three contact points with the outer wall surface of the exhaust cone 10, which improves the stability of the second limiting ring structure 200 and the exhaust cone 10 during installation and engagement. At the same time, the end of the limiting block 210 that is in contact with the exhaust cone 10 is provided with an annular curved surface that is adapted to the outer wall surface of the exhaust cone 10, which further improves the stability of the second limiting ring structure 200 in engagement with the exhaust cone 10, ensures that the parts have good stability during the welding process, and improves the welding quality.

[0042] like Figure 1 and Figure 2 As shown, the blade limiting part 300 includes a blade limiting plate 310 and a limiting pin 320. The blade limiting plate 310 of the blade limiting part 300 is in contact with the end face of the blade 20 away from the exhaust cone 10. At the same time, the blade limiting plate 310 has pin holes that cooperate with the limiting pins 320. The pin holes are distributed on both sides of the blade 20 when the blade limiting plate 310 is in contact with the blade 20. Therefore, after the limiting pins 320 are installed into the pin holes, the limiting pins 320 on both sides clamp and fix the blade 20, thereby realizing the positioning and fixing of the blade 20. The number of blade limiting plates 310 is the same as that of the blade limiting plate 300. The number of blades 20 is the same, that is, one blade limiting plate 310 is used to limit and fix one blade 20. At the same time, each blade limiting plate 310 is distributed on the same circumference with the rotation center of the exhaust cone 10 as the center, so that the axis of the ring where each blade 20 is located has a high degree of coaxiality with the rotation axis of the exhaust cone 10, ensuring that the welding position of each blade 20 and the exhaust cone 10 has a high degree of accuracy. Furthermore, the blade limiting plate 310 and the limiting pin 320 of the blade limiting part 300 suppress the large amount of deformation of the blade 20 during the welding process.

[0043] In a specific embodiment, when the end face of the blade 20 is in contact with the blade limiting plate 310, two pin holes are arranged on each side of the end face of the blade 20. The two pin holes are arranged at intervals along the edge of the end face of the blade 20, and the pin holes on both sides are symmetrical to each other. That is, the blade 20 is limited and fixed by four pin holes and four limiting pins 320, which improves the stability of limiting and fixing the blade 20. At the same time, the symmetrically arranged pin holes and limiting pins 320 can improve the uniformity of the fastening force applied to the blade 20 and better suppress the deformation of the blade 20.

[0044] like Figure 2 As shown, the blade limiting part 300 also includes a base 330, and each blade limiting plate 310 is connected to the base 330. The base 330 is used to fix each blade limiting plate 310, and the blade limiting plates 310 are arranged at intervals so that a welding clearance hole for the welding head to be inserted is formed between any two adjacent blade limiting plates 310. At the same time, the upper and lower ends of the base 330 are provided with corresponding mounting holes to cooperate with the bolt holes of the second fixing ring 220 in the second limiting ring structure 200 and the bolt holes of the first fixing ring 120 in the first limiting ring structure 100, respectively, and are installed and fixed by bolts.

[0045] like Figure 3 As shown, the support ring limiting part 400 includes a support ring limiting plate 410, which has an annular limiting groove. When the support ring limiting part 400 is installed with the second fixing ring 220 of the second limiting ring structure 200, the center of the annular limiting groove is located on the rotation axis of the exhaust cone 10, and the end of the support ring 30 extending out of the exhaust cone is inserted into the annular limiting groove. The support ring 30 in the exhaust cone is positioned and fixed by the annular limiting groove, so that the center of the support ring 30 is located on the rotation axis of the exhaust cone 10, thereby achieving good coaxiality between the support ring 30 and the exhaust cone 10.

[0046] Meanwhile, the support ring limiting part 400 also includes a support ring limiting seat 420 and a third connecting post 430. The support ring limiting plate 410 in the support ring limiting part 400 is connected and fixed to the support ring limiting seat 420 through the third connecting post 430 to fix the support ring limiting plate 410. The third connecting posts 430 are arranged at intervals so that welding clearance holes 500 are formed between two adjacent third connecting posts 430. Similarly, the support ring limiting seat 420 has bolt mounting holes to match the bolt holes of the second fixing ring 220 in the second limiting ring structure 200 and the mounting holes of the base 330 in the blade limiting part 300, so that detachable installation and fixation can be achieved by bolts.

[0047] In another specific embodiment, the first limiting ring 110, the first fixing ring 120, and the first connecting post 130 in the first limiting ring structure 100 are all integrally formed structures. The limiting block 210, the second fixing ring 220, and the second connecting post 230 in the second limiting ring structure 200 are integrally formed structures. The blade limiting plate 310 and the base 330 in the blade limiting part 300 are integrally formed structures. The support ring limiting plate 410, the support ring limiting seat 420, and the third connecting post 430 in the support ring limiting part 400 are also integrally formed structures. The integral structure not only improves the stability of each component structure, but also improves the installation efficiency of the exhaust cone welding device provided in this embodiment.

[0048] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0049] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A welding device for exhaust cones, characterized in that, Used for welding and positioning between the exhaust cone, blades, and support ring in the exhaust cone, including: The exhaust cone limiting part includes a first limiting ring structure and a second limiting ring structure for sleeved on the outer wall of the exhaust cone, wherein the first limiting ring structure is close to the smaller diameter end of the exhaust cone, and the second limiting ring structure is close to the larger diameter end of the exhaust cone. A blade limiting part is used to limit and fix the blade, and the blade limiting part is located between the first limiting ring structure and the second limiting ring structure, and is detachably connected to the first limiting ring structure and the second limiting ring structure respectively. A support ring limiting part is used to limit and fix the support ring. The support ring limiting part is connected to the blade limiting part through the second limiting ring structure, and the support ring limiting part and the second limiting ring structure are detachably connected. The exhaust cone limiting part, the blade limiting part and the support ring limiting part are all provided with welding avoidance holes for the welding head to extend into and weld the parts.

2. The exhaust cone welding device according to claim 1, characterized in that, The first limiting ring structure includes a first limiting ring, a first fixing ring, and a first connecting post. The first limiting ring has a first limiting hole for fitting onto the exhaust cone. The first fixing ring has a bolt hole for mounting and fixing to the blade limiting part. The first limiting ring is connected to the first fixing ring through the first connecting post. Multiple first connecting posts are provided, and there is a welding clearance hole between two adjacent first connecting posts.

3. The exhaust cone welding device according to claim 1, characterized in that, The second limiting ring structure includes a limiting block, a second fixing ring, and a second connecting post. Multiple limiting blocks are provided, and each limiting block is distributed on the same circumference with the rotation center of the exhaust cone as the center. Each limiting block is attached to the outer wall surface of the exhaust cone, and each limiting block is connected to the second fixing ring through a second connecting post. There is a welding clearance hole between two adjacent second connecting posts.

4. The exhaust cone welding device according to claim 3, characterized in that, The limiting blocks are provided in three parts, which are evenly distributed on the same circumference, and the ends of the limiting blocks are provided with annular curved surfaces that are adapted to the outer wall surface of the exhaust cone.

5. The exhaust cone welding device according to claim 1, characterized in that, The blade limiting part includes a blade limiting plate and a limiting pin. The blade limiting plate is used to fit against the end face of the blade away from the exhaust cone, and the blade limiting plate has a pin hole that cooperates with the limiting pin. When the blade fits against the blade limiting plate, the pin holes are arranged on both sides of the blade so that the limiting pin is inserted into the pin hole and the blade is locked and positioned by the limiting pin. The number of blade limiting plates is the same as the number of blades and corresponds one-to-one. Each blade limiting plate is distributed on the same circumference with the rotation center of the exhaust cone as the center.

6. The exhaust cone welding device according to claim 5, characterized in that, When the blade is attached to the blade limiting plate, two pin holes are arranged on each side of the blade, and the pin holes on both sides of the blade are symmetrically distributed.

7. The exhaust cone welding device according to claim 5, characterized in that, The blade limiting part also includes a base, and each blade limiting plate is arranged at intervals on the base. Two adjacent blade limiting plates have welding avoidance holes, and the upper and lower ends of the base have mounting holes for connection and fixation.

8. The exhaust cone welding device according to claim 1, characterized in that, The support ring limiting part includes a support ring limiting plate, the support ring limiting plate has an annular limiting groove, the center of the annular limiting groove is located on the rotation axis of the exhaust cone, and one end of the support ring extending out of the exhaust cone is inserted into the annular limiting groove.

9. The exhaust cone welding device according to claim 8, characterized in that, The support ring limiting part further includes a support ring limiting seat and a third connecting post. The support ring limiting plate is connected to the support ring limiting seat through the third connecting post, and there is a welding avoidance hole between two adjacent third connecting posts.

10. The exhaust cone welding apparatus according to any one of claims 1-9, characterized in that, The first limiting ring structure, the second limiting ring structure, and the support ring limiting part are all integral structures.

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