Flame tube disassembling tool

By designing a flame tube disassembly tool and utilizing the sliding connection of the base, pull ring, and connecting rod, the guiding problem during flame tube disassembly was solved, achieving a safe and convenient disassembly process.

CN223719397UActive Publication Date: 2025-12-26AECC CHINA GAS TURBINE ESTAB
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520219767.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-11
Publication Date
2025-12-26
Estimated Expiration
2035-02-11

AI Technical Summary

Technical Problem

The lack of guidance during the disassembly of the flame tube in the existing technology results in large pulling forces and easy damage to the components between the flame tube and the transition section.

Method used

Design a flame tube disassembly tool, including a base, a pull ring, a push plate, and multiple connecting rods. The flame tube is guided out by the sliding connection of the connecting rods, avoiding damage caused by lack of guidance.

Benefits of technology

It effectively reduces the pulling force when pulling out the flame tube, protects the components between the flame tube and the transition section, and simplifies the disassembly process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223719397U_ABST
    Figure CN223719397U_ABST
Patent Text Reader

Abstract

The utility model discloses a flame tube disassembling tool, and relates to the technical field of disassembling tools. The dismounting tool comprises a base; pulling out the ring; each connecting rod penetrates through the base, and each connecting rod is in sliding connection with the base in the axial direction of the flame tube; the first end of each connecting rod is connected with the pulling ring; the push plate is connected with the second ends of the connecting rods; and the driving part is arranged between the base and the push plate and used for enabling the push plate to be far away from the base in the axial direction of the flame tube. According to the flame tube pulling-out device, the multiple connecting rods penetrate through the base, and each connecting rod is in sliding connection with the base in the axial direction of the flame tube, so that in the process of pulling out the flame tube, all the connecting rods can guide the pulling-out direction of the flame tube; and the phenomenon that due to lack of guiding, the pulling-out force is large or parts between the flame tube and the transition section are damaged is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of disassembling tools, in particular to a flame tube disassembling tool. BACKGROUND

[0002] When a gas turbine is subjected to fault detection, the flame tube in the gas turbine needs to be disassembled and subjected to relevant inspection work. Figure 1 As shown in the figure, since the flame tube is mechanically matched with the transition section through the hula ring (not shown in the figure) thereon, the disassembly of the flame tube and the transition section cannot be completed manually. Since the gas turbine has multiple flame tubes, the time consumed by the process of disassembling the flame tube will directly affect the progress of the entire fault detection work. In other words, the disassembly of the flame tube is crucial in the process of fault detection of the gas turbine.

[0003] The commonly used method for disassembling the flame tube is to pull the head of the flame tube by a rope or the like. This method is relatively rough in operation, and since there is no guidance during the pulling process, not only is a large pulling force required, but also the hula ring and other components are easily damaged when being pulled out. CONTENT OF THE UTILITY MODEL

[0004] The present application aims to provide a flame tube disassembling tool to solve the technical problem that the components between the flame tube and the transition section are easily damaged due to lack of guidance when disassembling the flame tube in the prior art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution:

[0006] A flame tube disassembling tool applied to a flame tube of a combustion chamber casing, comprising:

[0007] a base capable of forming a detachable connection with the combustion chamber casing, and the flame tube is located inside the base during use;

[0008] a ring pulling device capable of forming a detachable connection with the flame tube during use;

[0009] a plurality of connecting rods, each connecting rod penetrating through the base and forming a sliding connection with the base in the axial direction of the flame tube, and the first end of each connecting rod being connected with the ring pulling device;

[0010] a push plate connected with the second end of each connecting rod;

[0011] a driving member arranged between the base and the push plate and used for moving the push plate away from the base in the axial direction of the flame tube.

[0012] As a specific scheme of the technical scheme in the application, the pull ring comprises a plurality of clamping holes; in use, the clamping holes correspond one by one to the clamping blocks on the flame tube, and each clamping hole is uniformly distributed around the axis of the flame tube; the flame tube and the pull ring form detachable connection through the clamping blocks and the corresponding clamping holes.

[0013] As a specific scheme of the technical scheme in the application, the pull ring is in the shape of a ring, and the clamping holes penetrate the pull ring along the axial direction of the pull ring; in use, the corresponding clamping blocks can pass through the pull ring along the axial direction of the pull ring through the clamping holes.

[0014] As a specific scheme of the technical scheme in the application, the pull ring is in the shape of a ring, and the pull ring is internally provided with a U-shaped ring groove; the axis of the U-shaped ring groove coincides with the axis of the pull ring; the clamping holes are in communication with the U-shaped ring groove; in use, the corresponding clamping blocks can fall into the interior of the U-shaped ring groove along the axial direction of the pull ring through the clamping holes.

[0015] As a specific scheme of the technical scheme in the application, the base comprises:

[0016] A support pipe; the inner diameter of the support pipe is greater than the outer diameter of the flame tube;

[0017] A fixed bottom plate is arranged at the first end of the support pipe.

[0018] As a specific scheme of the technical scheme in the application, the fixed bottom plate forms detachable connection with the support pipe; the push plate forms detachable connection with the connecting rod.

[0019] As a specific scheme of the technical scheme in the application, the driving member comprises an automatic push rod and a friction disc; the friction disc is arranged at the output end of the automatic push rod.

[0020] As a specific scheme of the technical scheme in the application, the driving member is movably arranged between the base and the push plate; the push plate is provided with a limiting ring; the limiting ring is used at least for limiting the relative displacement of the driving member and the push plate in the vertical direction.

[0021] As a specific scheme of the technical scheme in the application, the limiting ring is in the shape of a whole ring or a half ring; if the limiting ring is in the shape of a half ring, the opening of the limiting ring faces upward in the vertical direction.

[0022] As a specific scheme of the technical scheme in the application, the clamping block is in the shape of a cylinder; the outer diameter of the clamping block is equal to the spacing of the U-shaped ring groove along the axial direction of the pull ring.

[0023] Compared with the prior art, the application has the following beneficial effects:

[0024] The application penetrates the base through multiple connecting rods, and each connecting rod is arranged in a sliding connection mode along the axial direction of the flame tube, so that each connecting rod can guide the pulling direction of the flame tube during pulling out of the flame tube, and the phenomenon of large pulling force or damage to the parts between the flame tube and the transition section due to lack of guidance is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a sectional view of a flame tube structure in the prior art;

[0026] Figure 2 is a perspective view of a flame tube disassembly tool according to an embodiment of the application;

[0027] Figure 3 is Figure 2 a front view of the flame tube disassembly tool;

[0028] Figure 4 is Figure 3 a sectional view of the flame tube disassembly tool according to the A-A line;

[0029] Figure 5 is Figure 4 an enlarged view of part B;

[0030] Figure 6 is a perspective view of a pulling ring according to an embodiment of the application;

[0031] Figure 7 is a perspective view of another pulling ring according to an embodiment of the application;

[0032] Figure 8 is a perspective view of a pushing plate according to an embodiment of the application;

[0033] Figure 9 is a perspective view of another pushing plate according to an embodiment of the application;

[0034] Figure 10 is a perspective view of a driving member according to an embodiment of the application.

[0035] In the figure: 1, combustion chamber casing; 2, flame tube; 21, clamping block; 3, transition section; 4, support pipe; 5, fixed bottom plate; 6, pulling ring; 61, clamping hole; 62, U-shaped ring groove; 7, connecting rod; 8, pushing plate; 81, limiting ring; 9, driving member; 91, automatic push rod; 92, friction disc. DETAILED DESCRIPTION

[0036] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0037] It should be noted that, in the description of the present application, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0038] In addition, it should be understood that, for the convenience of description, the sizes of the various components shown in the drawings are not drawn in accordance with the actual proportional relationship, for example, the thickness or width of certain layers can be exaggerated relative to other layers.

[0039] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not need to be further specifically discussed and described in the description of subsequent drawings.

[0040] It should be noted that the gas turbine in the prior art is relatively complex, in order to enable those skilled in the art to quickly and clearly understand the connection relationship between the flame tube and the transition section, as shown in Figure 1 , the combustion chamber casing 1, the flame tube 2 and the transition section 3 in the gas turbine are simplified. That is, as shown in Figure 1 , the combustion chamber casing 1, the flame tube 2 and the transition section 3 are all schematic diagrams, which do not represent that the flame tube disassembling tool proposed in the present application is only applicable to the disassembly of the flame tube 2 and the transition section 3 in the gas turbine as shown in Figure 1 . It should be understood that the flame tube disassembling tool proposed in the present application is applicable to the disassembly of the flame tube of any shape or structure in the gas turbine. As shown in Figure 1 , the gas turbine includes a combustion chamber casing 1, a flame tube 2 and a transition section 3. The transition section 3 and the flame tube 2 are connected, and the flame tube 2 is arranged in the combustion chamber casing 1.

[0041] It should be noted that the application only takes the gas turbine as the application scenario to exemplify the flame tube disassembling tool in various embodiments, which does not mean that the flame tube disassembling tool proposed in the application is only applicable to the disassembly of the flame tube in the gas turbine. It should be understood that it is also applicable to the disassembly of the flame tube in other application scenarios similar to the structure of the flame tube in the gas turbine. For example, it can also be applicable to the disassembly of the flame tube in the automobile engine or the aircraft engine.

[0042] In order to solve the technical problem that the parts between the flame tube and the transition section are easily damaged due to the lack of guidance during the pulling process when the flame tube is disassembled by using a rope and other tools as proposed in the background art, the application proposes a flame tube disassembling tool. Specifically, the flame tube disassembling tool comprises a base, a pull ring 6, a push plate 8, a driving member 9 and a plurality of connecting rods 7. As shown in Figure 4 , the base (i.e. the support tube 4 and the fixed bottom plate 5) can be detachably connected with the combustion chamber casing, and the flame tube 2 is located inside the base during use, and the pull ring 6 can also be detachably connected with the flame tube 2. As shown in Figure 2 and Figure 3 , the driving member 9 is arranged between the base and the push plate 8, and is used to make the push plate 8 move away from the base along the axial direction of the flame tube. Each connecting rod 7 penetrates the base, and each connecting rod 7 forms a sliding connection with the base along the axial direction of the flame tube. The first end of each connecting rod 7 is connected with the pull ring 6, and the second end of each connecting rod 7 is connected with the push plate 8.

[0043] During use, the pull ring 6 is detachably connected with the flame tube 2. As shown in Figure 4 , if the driving member 9 is started, the driving member 9 can make the push plate 8 move away from the base along the axial direction of the flame tube (hereinafter referred to as the first direction). Since the second end of the connecting rod 7 is connected with the push plate 8, if the push plate 8 moves in the first direction, each connecting rod 7 can also move in the first direction under the driving action of the push plate 8. Since the first end of the connecting rod 7 is connected with the pull ring 6, if each connecting rod 7 moves in the first direction, the pull ring 6 can also move in the first direction under the driving action of each connecting rod 7. Since the pull ring 6 is detachably connected with the flame tube 2, if the pull ring 6 moves in the first direction, the flame tube 2 can also move in the first direction, i.e. as shown in Figure 4 , the pull ring 6 can pull out the flame tube 2 from the transition section 3.

[0044] In the embodiment, since each connecting rod 7 penetrates the base and forms a sliding connection with the base in the axial direction of the flame tube (i.e., the first direction), each connecting rod 7 can guide the pulling direction of the flame tube 2 during the pulling of the flame tube 2, so that the pulling force is not too large or the components between the flame tube 2 and the transition section 3 are not damaged due to lack of guidance.

[0045] In the embodiment of the present application, as shown in Figure 4 , the outer diameter of the flame tube 2 can be less than or equal to the inner diameter of the pull ring 6, and the outer diameter of the pull ring 6 can be less than or equal to the inner diameter of the support tube 4. It is easy to understand that if the outer diameter of the flame tube 2 is equal to the inner diameter of the pull ring 6, and the outer diameter of the pull ring 6 is equal to the inner diameter of the support tube 4, although the pull ring 6 can stably guide the movement of the flame tube 2 during pulling, since there is no gap between the pull ring 6 and the support tube 4, and between the pull ring 6 and the flame tube 2, the pull ring 6 is prone to jamming during installation and pulling, i.e., increasing the operation difficulty. In order to enable the pull ring 6 to stably guide the movement of the flame tube 2 during the pulling of the flame tube 2, and to prevent the pull ring 6 from being easily jammed during installation and pulling, in an embodiment of the present application, a small gap can exist between the pull ring 6 and the flame tube 2, and a small gap can also exist between the pull ring 6 and the support tube 4. In the embodiment, the small gap refers to a gap greater than or equal to 2 mm and less than or equal to 50 mm. Specifically, the small gap can be selected according to the size of the flame tube 2, i.e., the larger the outer diameter of the flame tube 2, the larger the small gap; and the smaller the outer diameter of the flame tube 2, the smaller the small gap.

[0046] In the embodiment of the present application, the shape and structure of the base are not limited, as long as the base can form a detachable connection with the combustion chamber case 1, and the base can install and support the connecting rod 7. For example, the base can be a bracket, or a pipe as shown in Figure 2 and Figure 3 . In a specific embodiment of the present application, as shown in Figure 2 and Figure 3 , the base includes the support tube 4 and the fixed base plate 5. As shown in Figure 4 , the inner diameter of the support tube 4 is greater than the outer diameter of the flame tube 2, the fixed base plate 5 is arranged at the first end of the support tube 4, and the second end of the support tube 4 forms a detachable connection with the combustion chamber case 1. In use, as shown in Figure 4 , the flame tube 2 is located inside the support tube 4, one end of the driving member 9 abuts against the push plate 8, and the other end abuts against the fixed base plate 5.

[0047] It should be noted that in the embodiments of the present application, any two parts (for example: the combustion chamber case 1 and the support tube 4, the support tube 4 and the fixed bottom plate 5, the connecting rod 7 and the push plate 8, etc.) that form a detachable connection can select any reasonable detachable connection mode. For example: a threaded detachable connection or a mortise and tenon detachable connection, etc. Since the threaded detachable connection or the mortise and tenon detachable connection and other detachable connection technologies are mature technologies, therefore, they are not enumerated and described here.

[0048] In the embodiments of the present application, the pull ring 6 and the flame tube 2 can adopt a threaded detachable connection. It should be noted that if the pull ring 6 and the flame tube 2 adopt a threaded detachable connection, the pull ring 6 and the flame tube 2 need to be connected by installing bolts. As known from the foregoing, since the pull ring 6 and the flame tube 2 only have a small gap between them, it is difficult to operate the pull ring 6 and the flame tube 2 to form a detachable connection by bolts. In order to make it easier for the pull ring 6 and the flame tube 2 to form a detachable connection, in an embodiment of the present application, as shown in Figure 5 , the flame tube can include a plurality of clamping blocks 21, each clamping block 21 is uniformly distributed around the axis of the flame tube, and is arranged on the outside of the flame tube. As shown in Figure 6 and Figure 7 , the pull ring 6 is provided with a clamping hole 61 corresponding to each clamping block 21. In use, the pull ring 6 is moved along the axial direction of the flame tube 2 so that the clamping blocks 21 on the flame tube 2 can pass through the corresponding clamping holes 61 on the pull ring 6. After each clamping block 21 passes through the corresponding clamping hole 61 on the pull ring 6, the pull ring 6 is rotated around the axis of the pull ring 6 so that the clamping blocks 21 and the corresponding clamping holes 61 are staggered. If the clamping blocks 21 and the corresponding clamping holes 61 are staggered, and the pull ring 6 is moved in the first direction, the pull ring 6 can drive the flame tube 2 to move in the first direction through the clamping blocks 21, that is, the flame tube 2 can be pulled out of the transition section 3. In other words, in this embodiment, through the arrangement of the clamping blocks 21 and the clamping holes 61, only the pull ring 6 needs to be moved along the axial direction of the flame tube 2 and rotated, which is simple and easy to operate.

[0049] In the embodiments of the present application, the shape and structure of the pull ring 6 are not limited. For example, the pull ring 6 can be a polygonal ring, or a circular ring as shown in Figure 6 or Figure 7 , etc. In an embodiment of the present application, as shown in Figure 7 , the pull ring 6 can be a circular ring, and the clamping holes 61 pass through the pull ring 6 along the axial direction of the pull ring 6. It should be noted that if the pull ring 6 is as shown in Figure 7As shown in FIG. 6, the pull ring 6 can be in a circular ring shape, and the pull ring 6 is internally provided with a U-shaped ring groove 62. The axial center line of the U-shaped ring groove 62 coincides with the axial center line of the pull ring 6. The clamping hole 61 is in communication with the U-shaped ring groove 62. In use, the corresponding clamping block 21 can fall into the interior of the U-shaped ring groove 62 through the clamping hole 61 along the axial direction of the pull ring 6. In this embodiment, if the pull ring 6 and the flame tube 2 form a detachable connection through the clamping blocks 21, the clamping blocks 21 and the pull ring 6 cannot be relatively displaced along the axial direction of the flame tube 2 due to the limiting effect of the U-shaped ring groove 62. If the clamping blocks 21 and the pull ring 6 cannot be relatively displaced along the axial direction of the flame tube 2, the pull ring 6 and the flame tube 2 can form a stable detachable connection. Figure 6 As shown in FIG. 6, the pull ring 6 can be in a circular ring shape, and the pull ring 6 is internally provided with a U-shaped ring groove 62. The axial center line of the U-shaped ring groove 62 coincides with the axial center line of the pull ring 6. The clamping hole 61 is in communication with the U-shaped ring groove 62. In use, the corresponding clamping block 21 can fall into the interior of the U-shaped ring groove 62 through the clamping hole 61 along the axial direction of the pull ring 6. In this embodiment, if the pull ring 6 and the flame tube 2 form a detachable connection through the clamping blocks 21, the clamping blocks 21 and the pull ring 6 cannot be relatively displaced along the axial direction of the flame tube 2 due to the limiting effect of the U-shaped ring groove 62. If the clamping blocks 21 and the pull ring 6 cannot be relatively displaced along the axial direction of the flame tube 2, the pull ring 6 and the flame tube 2 can form a stable detachable connection.

[0050] In the embodiments of the present application, the shape and structure of the clamping block 21 are not limited, for example, the clamping block 21 can be in a square block shape or a hemispherical block shape, etc. In order to make the clamping block 21 fall into the U-shaped ring groove 62 (that is, the pull ring 6 and the flame tube 2 form a detachable connection) and the relative displacement between the pull ring 6 and the clamping block 21 along the axial direction of the flame tube 2 is small, in this embodiment, the outer diameter of the clamping block 21 (that is, the diameter d as shown in FIG. 6) can be equal to the spacing of the U-shaped ring groove 62 along the axial direction of the pull ring 6 (that is, the spacing D as shown in FIG. 6). Figure 5 Of course, in other embodiments of the present application, the outer diameter of the clamping block 21 can also be smaller than the spacing of the U-shaped ring groove 62 along the axial direction of the pull ring 6. Figure 5

[0051] It should be noted that if the outer diameter of the clamping block 21 is equal to the spacing of the U-shaped ring groove 62 along the axial direction of the pull ring 6, the friction between the clamping block 21 and the pull ring 6 is larger during use. If the friction between the clamping block 21 and the pull ring 6 is larger, it is more difficult to rotate the pull ring 6. In order to reduce the friction between the clamping block 21 and the pull ring 6, the clamping block 21 can be in a cylindrical shape. If the clamping block 21 is in a cylindrical shape, the contact area between the clamping block 21 and the pull ring 6 is small, and the smaller contact area makes the friction between the clamping block 21 and the pull ring 6 smaller, that is, it is easy to rotate the pull ring 6.

[0052] ​In the embodiments of the present application, the fixed base plate 5 can be integrally connected with the support tube 4, and in order to facilitate the separation of the fixed base plate 5 and the support tube 4, the fixed base plate 5 and the support tube 4 can also be formed in detachable connection. The push plate 8 can be integrally connected with the connecting rod 7, and in order to facilitate the separation of the push plate 8 and the connecting rod 7, the push plate 8 and the connecting rod 7 can also be formed in detachable connection.

[0053] In the embodiments of the present application, the driving member 9 can be any device or apparatus capable of moving the push plate 8 away from the base along the axial direction of the flame tube 2. For example, the driving member 9 can be an automatic push rod 91 (such as an electric push rod or a hydraulic push rod, etc.) capable of automatic control. In the embodiments of the present application, one end of the automatic push rod 91 can be connected with the fixed base plate 5, and the other end can be connected with the push plate 8. In order to facilitate the disassembly of the automatic push rod 91, as shown in Figure 3 , the automatic push rod 91 can be movably arranged between the fixed base plate 5 and the push plate 8. If the automatic push rod 91 is movably arranged between the fixed base plate 5 and the push plate 8, in order to avoid the automatic push rod 91 from falling off between the fixed base plate 5 and the push plate 8 due to gravity during use, in an embodiment of the present application, as shown in Figure 3 , the push plate 8 can further be provided with a limiting ring 81, and the limiting ring 81 is at least used for limiting the relative displacement of the driving member 9 and the push plate 8 in the vertical direction. In use, the automatic push rod 91 is placed in the limiting ring 81, and under the limiting action of the limiting ring 81, the automatic push rod 91 is difficult to fall off between the fixed base plate 5 and the push plate 8 based on gravity.

[0054] In the embodiments of the present application, the limiting ring 81 can be a profiled ring arranged according to the shape of the automatic push rod 91. For example, if the automatic push rod 91 is a square column, the limiting ring 81 can be a square ring; if the automatic push rod 91 is a circular column, the limiting ring 81 can be a circular ring. Of course, in other embodiments of the present application, the limiting ring 81 can be arranged in any other shape according to requirements.

[0055] In the embodiments of the present application, the limiting ring 81 can be Figure 8 entirely annular. If the limiting ring 81 is entirely annular, when the automatic push rod 91 is placed between the fixed base plate 5 and the push plate 8, the automatic push rod 91 needs to be first aligned with the limiting ring 81 in the radial direction of the limiting ring 81, and then the automatic push rod 91 is inserted into the limiting ring 81 in the axial direction of the limiting ring 81, which is relatively cumbersome. In order to simplify the operation steps of placing the automatic push rod 91 between the fixed base plate 5 and the push plate 8, in an embodiment of the present application, as shown in Figure 9 , the limiting ring 81 can be semi-annular, and the opening of the limiting ring 81 is upward in the vertical direction (i.e. in the direction C as shown in Figure 9 ). If the limiting ring 81 is semi-annular, when the automatic push rod 91 is placed between the fixed base plate 5 and the push plate 8, the automatic push rod 91 can be directly inserted into the limiting ring 81 in the axial direction of the limiting ring 81, which is relatively simple. Figure 9As shown, when in use, the automatic push rod 91 is directly clamped into the limiting ring 81 along the vertical downward direction, and then the automatic push rod 91 is placed between the fixed bottom plate 5 and the push plate 8, which is simple and fast.

[0056] It should be noted that the output end area of the automatic push rod 91 is generally small, that is, the friction between the output end of the automatic push rod 91 and the contacted object is small. During the process of pushing the push plate 8 by the automatic push rod 91, if the friction between the output end of the automatic push rod 91 and the contacted object is small, the output end of the automatic push rod 91 is easy to slip, that is, the automatic push rod 91 is easy to slip out of the fixed bottom plate 5 and the push plate 8. In order to avoid the phenomenon that the automatic push rod 91 slips out due to the small friction between the output end of the automatic push rod 91 and the contacted object, in an embodiment of the present application, the driving member 9 can further include a friction disc 92, as shown. Figure 10 The friction disc 92 is arranged at the output end of the automatic push rod 91, and is used to increase the contact area of the output end of the automatic push rod 91. In order to further increase the friction between the output end of the automatic push rod 91 and the contacted object, the roughness of the friction disc 92 can be greater than the roughness of the output end of the automatic push rod 91.

[0057] The embodiment of the flame tube disassembling tool provided in the present application is arranged in a manner that a plurality of connecting rods penetrate the base, and each connecting rod forms a sliding connection along the axial direction of the flame tube with the base, so that each connecting rod can guide the pulling direction of the flame tube during the pulling out of the flame tube, and the phenomenon of large pulling force or damage to the parts between the flame tube and the transition section due to lack of guidance is avoided.

[0058] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flame tube disassembly tool for a flame tube of a combustion chamber casing, characterized by The utility model relates to a kind of flame tube puller, including: Base; The base can be detachably connected with the combustion chamber case, and the flame tube is located inside the base in use; Pull ring (6);In use, the pull ring (6) is detachably connected with the flame tube; Multiple connecting rods (7), each connecting rod (7) is penetrated through the base, and each connecting rod (7) is slidably connected with the base along the axial direction of the flame tube;The first end of each connecting rod (7) is connected with the pull ring (6); Push plate (8), connected with the second end of each connecting rod (7); Driving member (9) is arranged between the base and the push plate (8), for making the push plate (8) away from the base along the axial direction of the flame tube.

2. The flame tube disassembly tool of claim 1, wherein, The pull ring (6) includes multiple clamping holes (61);In use, clamping hole (61) is one-to-one corresponding with the clamping block (21) on the flame tube, and each clamping hole (61) is uniformly distributed around the axial line of the flame tube;The flame tube and the pull ring (6) are detachably connected by clamping block (21) and corresponding clamping hole (61).

3. The flame tube disassembly tool of claim 2, wherein, The pull ring (6) is annular, and clamping hole (61) penetrates the pull ring (6) along the axial direction of the pull ring (6);In use, corresponding clamping block (21) can pass through the pull ring (6) along the axial direction of the pull ring (6) through the clamping hole (61).

4. The flame tube disassembly tool of claim 2, wherein, The pull ring (6) is annular, and the pull ring (6) is provided with a U-shaped ring groove (62) inside;The axial line of the U-shaped ring groove (62) coincides with the axial line of the pull ring (6);Clamping hole (61) is communicated with the U-shaped ring groove (62), and in use, corresponding clamping block (21) can fall into the inside of the U-shaped ring groove (62) along the axial direction of the pull ring (6) through the clamping hole (61).

5. The flame tube disassembly tool of any one of claims 1 to 4, wherein, The base includes: Support pipe (4);The inner diameter of the support pipe (4) is greater than the outer diameter of the flame tube; Fixed bottom plate (5) is arranged at the first end of the support pipe (4).

6. The flame tube disassembly tool of claim 5, wherein, The fixed bottom plate (5) is detachably connected with the support pipe (4);The push plate (8) is detachably connected with the connecting rod (7).

7. The flame tube disassembly tool of any one of claims 1 to 4, wherein, The driving member (9) includes automatic push rod (91) and friction disc (92), and the friction disc (92) is arranged at the output end of the automatic push rod (91).

8. The flame tube disassembly tool of any one of claims 1 to 4, wherein, The driving member (9) is movably arranged between the base and the push plate (8), and the push plate (8) is provided with a limiting ring (81), and the limiting ring (81) is used at least for limiting the relative displacement of the driving member (9) and the push plate (8) in the vertical direction.

9. The flame tube disassembly tool of claim 8, wherein, The limiting ring (81) is whole ring or half ring, if the limiting ring (81) is half ring, the opening of the limiting ring (81) is upward along the vertical direction.

10. The flame tube disassembly tool of claim 4, wherein, The clamping block (21) is cylindrical, and the outer diameter of the clamping block (21) is equal to the spacing of the U-shaped ring groove (62) along the axial direction of the pull ring (6).