Auxiliary heating device for drawing coupling of gas generator

Abstract

The utility model belongs to the technical field of fuel gas generator coupling maintenance, and particularly relates to an auxiliary heating device for drawing a fuel gas generator coupling, which comprises a generator coupling and an upper heating cavity shell mounted on the surface of the generator coupling, and a lower heating cavity shell is connected to a butt joint end on one side of the upper heating cavity shell; according to the utility model, the upper heating cavity shell and the lower heating cavity shell are assembled on the surface of the power generator coupling, at the moment, the mounting plate and the assembling plate are driven to be assembled and stably locked, and then the plurality of heating rods which are connected in series are mounted at the sealing seats, so that the sealing seats are arranged on the surfaces of the upper heating cavity shell and the lower heating cavity shell. At the moment, heating rods which are evenly distributed heat cavities of the inner walls of the upper heating cavity shell and the lower heating cavity shell in real time, then heat is transmitted to the outer side surface of the power generator coupling through a graphite heat conduction plate, auxiliary even heating can be conveniently conducted on the power generator coupling, and the follow-up drawing effect and quality are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of gas generator backrest wheel repair, specifically relating to an auxiliary heating device for pulling out the backrest wheel of a gas generator. Background Technology

[0002] A gas generator coupling, also known as a back-end coupling, is a crucial component in a gas generator used to connect the generator shaft to the shafts of other equipment (such as gas turbines and compressors). It typically consists of two half-couplings, connecting bolts, and elastic elements (some types include these). The half-couplings are usually forged from high-strength alloy steel, possessing excellent mechanical properties and wear resistance. The connecting bolts securely connect the two half-couplings together, transmitting torque. The elastic elements act as buffers, dampens vibrations, and compensates for relative displacement between the two shafts.

[0003] Gas generator back-end pull-out refers to the operation process of removing the back-end pulley (coupling) from the generator shaft or the shaft of other connected equipment during the inspection, maintenance or component replacement of a gas generator using specialized tools and methods.

[0004] In the disassembly of gas generator backrest wheels, mechanical pulling is a traditional and common operation. This method typically uses tools such as pullers to forcibly pull the backrest wheel off the shaft using external mechanical force. However, because the force is difficult to control precisely during the pulling process, it is very easy to cause damage such as deformation and breakage of the shaft pin. In severe cases, it can even cause scratches on the surface of the journal, affecting the assembly accuracy and operational stability of the equipment. Currently, auxiliary heating methods on the market mainly include flame heating and electromagnetic induction heating. However, these methods generally suffer from uneven heating in practical applications. Taking flame heating as an example, the temperature distribution and heating range of the flame are difficult to control precisely, which can easily cause local overheating of the backrest wheel, resulting in changes in the properties of the metal material. Uneven heating not only causes uneven expansion of the backrest wheel, increasing the difficulty of pulling and affecting the pulling effect, but may also generate thermal stress inside the backrest wheel, creating potential safety hazards. Utility Model Content

[0005] The purpose of this invention is to provide an auxiliary heating device for pulling back wheels of gas generators. This addresses the problem in existing technologies where mechanical pulling is the traditional and common method for disassembling back wheels. This method typically uses tools like pullers to forcibly pull the back wheel off the shaft. However, because the force applied during pulling is difficult to control precisely, it easily leads to deformation, breakage, and other damage to the shaft pin. Currently, auxiliary heating methods on the market mainly include flame heating and electromagnetic induction heating. However, these methods generally suffer from uneven heating in practical applications. Taking flame heating as an example, the temperature distribution and heating range of the flame are difficult to control precisely, easily causing localized overheating of the back wheel, altering the properties of the metal material, increasing the difficulty of pulling, affecting the pulling effect, and potentially generating thermal stress inside the back wheel, creating safety hazards.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary heating device for pulling back the back wheel of a gas generator, comprising a generator back wheel and an upper heating chamber shell installed on the surface of the generator back wheel, wherein a lower heating chamber shell is connected to one side of the upper heating chamber shell.

[0007] Sealing seats are installed at the openings on the surfaces of the upper and lower heating chamber shells. Heating rods are installed at the openings of the sealing seats. An mounting plate is connected to the outer side of the mating end of the upper heating chamber shell. An assembly plate is connected to the outer side wall of the lower heating chamber shell near the mounting plate. A locking bolt is connected through the surface of the mounting plate. A locking nut is connected to one end of the locking bolt. Graphite heat-conducting plates are installed at the openings on the inner walls of both the upper and lower heating chamber shells. The graphite heat-conducting plates are filled with graphene material.

[0008] As a preferred auxiliary heating device for pulling the back wheel of the gas generator according to this utility model, both the upper heating chamber shell and the lower heating chamber shell are made of stainless steel, and the inner recess size of the upper heating chamber shell and the lower heating chamber shell matches the outer shell size of the generator back wheel.

[0009] As a preferred embodiment of the auxiliary heating device for pulling the back wheel of the gas generator of this utility model, the mating surfaces of the upper heating chamber shell and the lower heating chamber shell are both equipped with silicone sealing rings, the inner wall of the sealing seat is equipped with a silicone sealing ring, and the heating rods are connected in series electrically.

[0010] As a preferred auxiliary heating device for pulling back the back wheel of the gas generator of this utility model, the locking bolt passes through the mounting plate and the assembly plate and is threadedly connected to the locking nut.

[0011] As a preferred auxiliary heating device for back wheel pulling of the gas generator of this utility model, the surfaces of the upper heating chamber shell and the lower heating chamber shell are connected to a first heat insulation plate, and the mating end of the first heat insulation plate is connected to a second heat insulation plate. Both the first heat insulation plate and the second heat insulation plate are made of aluminum silicate fiber.

[0012] As a preferred embodiment of the auxiliary heating device for pulling the back wheel of the gas generator of this utility model, the first heat insulation plate is connected to a docking plate at its docking end, the second heat insulation plate is connected to a docking seat on the surface near the docking plate, the docking end of the docking plate is connected to a guide plate, the inner wall of the docking seat is connected to an elastic plate made of flexible stainless steel, and the bottom end of the elastic plate is connected to an elastic buckle.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention assembles the upper and lower heating chamber shells on the surface of the generator back wheel. At this time, the mounting plate and assembly plate are assembled and locked for stability. Then, multiple heating rods connected in series are installed at the sealing seat. The evenly distributed heating rods heat the cavities on the inner walls of the upper and lower heating chamber shells in real time. The heat is then transferred to the outer surface of the generator back wheel through the graphite heat-conducting plate, which facilitates auxiliary and uniform heating of the generator back wheel and improves the subsequent drawing effect and quality. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the installation structure of the upper heating chamber shell and the lower heating chamber shell of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the upper heating chamber shell and the lower heating chamber shell of this utility model;

[0018] Figure 3 This is a schematic diagram of the heating rod installation structure of this utility model;

[0019] Figure 4 This is an exploded view of the heat insulation panel installation structure of this utility model;

[0020] Figure 5 This is an enlarged structural diagram of point A of this utility model.

[0021] In the diagram: 1. Generator backrest wheel; 2. Upper heating chamber shell; 3. Lower heating chamber shell; 4. Sealing seat; 5. Heating rod; 6. Mounting plate; 7. Assembly plate; 8. Locking bolt; 9. Locking nut; 10. Graphite heat-conducting plate; 11. First heat insulation plate; 12. Second heat insulation plate; 13. Butt joint plate; 14. Butt joint seat; 15. Guide plate; 16. Elastic plate; 17. Elastic buckle. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 The present invention provides the following technical solution: an auxiliary heating device for pulling the back wheel of a gas generator, including a generator back wheel 1 and an upper heating chamber shell 2 installed on the surface of the generator back wheel 1, wherein a lower heating chamber shell 3 is connected to one side of the upper heating chamber shell 2.

[0024] Sealing seats 4 are installed at the openings on the surfaces of the upper heating chamber shell 2 and the lower heating chamber shell 3. Heating rods 5 are installed at the openings of the sealing seats 4. An mounting plate 6 is connected to the outer side of the mating end of the upper heating chamber shell 2. An assembly plate 7 is connected to the outer side wall of the lower heating chamber shell 3 near the mounting plate 6. A locking bolt 8 is connected through the surface of the mounting plate 6. A locking nut 9 is connected to one end of the locking bolt 8. Graphite heat-conducting plates 10 are installed at the openings on the inner walls of both the upper heating chamber shell 2 and the lower heating chamber shell 3. The graphite heat-conducting plates 10 are filled with graphene material.

[0025] Preferably, both the upper heating chamber shell 2 and the lower heating chamber shell 3 are made of stainless steel, and the inner recess size of the upper heating chamber shell 2 and the lower heating chamber shell 3 matches the outer shell size of the generator back wheel 1.

[0026] Preferably, silicone sealing rings are installed on the mating surfaces of the upper heating chamber shell 2 and the lower heating chamber shell 3, and silicone sealing rings are installed on the inner wall of the sealing seat 4. The heating rods 5 are connected in series electrically.

[0027] In practical use, by installing the required series heating rods 5 according to process requirements, it is convenient to uniformly heat the cavities of the upper heating chamber shell 2 and the lower heating chamber shell 3.

[0028] Preferably, the locking bolt 8 passes through the mounting plate 6 and the assembly plate 7 and is threadedly connected to the locking nut 9.

[0029] In practical use, the upper heating chamber shell 2 and the lower heating chamber shell 3 are easily and stably installed by passing the locking bolt 8 through the mounting plate 6 and the assembly plate 7 and locking it with the locking nut 9.

[0030] Preferably, the surfaces of the upper heating chamber shell 2 and the lower heating chamber shell 3 are connected to a first heat insulation plate 11, and the mating end of the first heat insulation plate 11 is connected to a second heat insulation plate 12. Both the first heat insulation plate 11 and the second heat insulation plate 12 are made of aluminum silicate fiber.

[0031] In practical use, the use of the first heat insulation plate 11 and the second heat insulation plate 12 helps to avoid burns during the process of pulling the back wheel of the gas generator, and improves the effect of auxiliary heating.

[0032] Preferably, the first heat insulation plate 11 is connected to the mating end with a mating plate 13, the second heat insulation plate 12 is connected to the surface of the mating plate 13 with a mating seat 14, the mating end of the mating plate 13 is connected to a guide plate 15, the inner wall of the mating seat 14 is connected to a flexible stainless steel elastic plate 16, and the bottom end of the elastic plate 16 is connected to an elastic buckle 17.

[0033] In practical use, during the assembly of the first heat insulation plate 11 and the second heat insulation plate 12, the elastic plate 16 inside the docking seat 14 undergoes elastic deformation, which in turn causes the elastic buckle 17 to engage with the opening on the surface of the guide plate 15, thereby facilitating the stable installation of the first heat insulation plate 11 and the second heat insulation plate 12.

[0034] The working principle of this utility model is as follows: The upper heating chamber shell 2 and the lower heating chamber shell 3 are assembled on the surface of the generator backrest wheel 1. This assembles the mounting plate 6 and the assembly plate 7. Then, the locking bolt 8 passes through the mounting plate 6 and the assembly plate 7 and is threaded into the locking nut 9, facilitating the stable installation of the upper heating chamber shell 2 and the lower heating chamber shell 3. Next, multiple heating rods 5 connected in series are installed at the sealing seat 4. The evenly distributed heating rods 5 continuously heat the cavities inside the upper heating chamber shell 2 and the lower heating chamber shell 3. The heat is then transferred to the outer surface of the generator backrest wheel 1 through the graphite heat-conducting plate 10, thus facilitating… The generator backrest wheel 1 is assisted with uniform heating to improve the subsequent pulling effect and quality. In addition, by assembling the first heat insulation plate 11 and the second heat insulation plate 12 on the surfaces of the upper heating chamber shell 2 and the lower heating chamber shell 3, the guide plate 15 on one side of the docking plate 13 is driven to fit into the opening on one side of the docking seat 14. At this time, the elastic plate 16 undergoes elastic deformation, which in turn drives the elastic buckle 17 to engage into the opening on the surface of the guide plate 15. This facilitates the stable installation of the first heat insulation plate 11 and the second heat insulation plate 12, and also facilitates the protection of the surface of the gas generator backrest wheel to avoid burns to personnel during the assisted heating process.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An auxiliary heating device for pulling back a gas generator back wheel, comprising a generator back wheel (1) and an upper heating chamber shell (2) mounted on the surface of the generator back wheel (1), characterized in that: The lower heating chamber shell (3) is connected to one side of the upper heating chamber shell (2). Sealing seats (4) are installed at the openings on the surfaces of the upper heating chamber shell (2) and the lower heating chamber shell (3). A heating rod (5) is installed at the opening of the sealing seat (4). An installation plate (6) is connected to the outer side of the mating end of the upper heating chamber shell (2). An assembly plate (7) is connected to the outer side wall of the lower heating chamber shell (3) near the installation plate (6). A locking bolt (8) is connected through the surface of the installation plate (6). A locking nut (9) is connected to one end of the locking bolt (8). Graphite heat-conducting plates (10) are installed at the openings on the inner walls of both the upper heating chamber shell (2) and the lower heating chamber shell (3). The graphite heat-conducting plates (10) are filled with graphene material.

2. The auxiliary heating device for pulling back wheels of a gas generator according to claim 1, characterized in that: The upper heating chamber shell (2) and the lower heating chamber shell (3) are both made of stainless steel. The inner recess size of the upper heating chamber shell (2) and the lower heating chamber shell (3) matches the outer shell size of the generator back wheel (1).

3. The auxiliary heating device for pulling back wheels of a gas generator according to claim 1, characterized in that: The mating surfaces of the upper heating chamber shell (2) and the lower heating chamber shell (3) are both fitted with silicone sealing rings, the inner wall of the sealing seat (4) is fitted with a silicone sealing ring, and the heating rods (5) are connected in series electrically.

4. The auxiliary heating device for pulling back wheels of a gas generator according to claim 1, characterized in that: The locking bolt (8) passes through the mounting plate (6) and the assembly plate (7) and is threadedly connected to the locking nut (9).

5. The auxiliary heating device for pulling back wheels of a gas generator according to claim 1, characterized in that: The surfaces of the upper heating chamber shell (2) and the lower heating chamber shell (3) are connected to a first heat insulation plate (11), and the mating end of the first heat insulation plate (11) is connected to a second heat insulation plate (12). Both the first heat insulation plate (11) and the second heat insulation plate (12) are made of aluminum silicate fiber.

6. The auxiliary heating device for pulling back wheels of a gas generator according to claim 5, characterized in that: The first heat insulation plate (11) is connected to a docking plate (13) at its docking end. The second heat insulation plate (12) is connected to a docking seat (14) on the surface near the docking plate (13). The docking end of the docking plate (13) is connected to a guide plate (15). The inner wall of the docking seat (14) is connected to a flexible stainless steel elastic plate (16). The bottom end of the elastic plate (16) is connected to an elastic buckle (17).

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