Running-in device for eliminating oil leakage fault of aero-engine booster pump sealing device

Abstract

The utility model relates to the technical field of aero-engine maintenance, and particularly discloses a running-in device for eliminating an oil leakage fault of an aero-engine booster pump sealing device, which comprises a mounting plate, a product support, a spline shaft connector, a diaphragm type elastic coupling and a servo motor, the fixing device is used for fixing a booster pump bearing shell to be repaired and a sealing device. A first connector arranged on the spline shaft connector is connected with a spline shaft extending out of the left end of a booster pump bearing shell to be repaired through sleeve teeth. The right end of the diaphragm type elastic coupling is connected with the spline shaft connector; and a rotating shaft of the servo motor is connected with the left end of the diaphragm type elastic coupling. The problem that in the prior art, after a booster pump sealing device is repaired according to the existing technology and reaches the standard, a certain oil leakage rate still exists between a movable ring and a graphite ring in the using process, and consequently oil leakage faults of the sealing device of an engine booster pump frequently occur in an external field is solved.

Description

Technical Field

[0001] This application relates to the technical field of aero-engine maintenance, and particularly relates to a running-in device for troubleshooting oil leakage faults of the sealing device of an aero-engine afterburner pump. Background Art

[0002] The afterburner fuel control system of an aero-engine consists of two parts: a fuel supply system and a control system. Among them, the afterburner pump is an important part of the fuel supply system, and its functions are mainly as follows: one is to transport fuel with a certain pressure to the afterburner combustion chamber, and the other is to pump oil from the aircraft fuel tank through the afterburner combustion chamber to discharge oil outward in case of emergency. When in afterburner operation, according to the throttle lever position signal, the return oil path of the afterburner pump is cut off, and the high-pressure oil from the gear pump drives the inlet valve to move and open the inlet fuel path of the afterburner pump. The outlet pressure of the working impeller continuously increases under the combined action of the sealing device and the inlet fuel, and then pushes open the outlet valve to supply oil to the afterburner fuel system.

[0003] The sealing device is the core component of the afterburner pump, which controls the stability of the fuel supply amount and thrust under the afterburner state of the engine. The sealing device mainly consists of components such as a sealing housing, a graphite ring, a dynamic ring, a graphite ring bushing, and a spring. The structures of the corresponding components at the fuel end and the lubricating oil end are the same, and the graphite ring is in close contact with the dynamic ring. If the oil leakage amount between the dynamic ring and the graphite ring is serious, it may cause the engine to report a large lubricating oil consumption fault; if the fuel leakage amount is serious, it may cause problems such as abnormal retraction and extension of the engine nozzle and low fuel supply pressure. In the prior art, the sealing device of the aero-engine afterburner pump frequently has oil leakage faults in the field. When the oil leakage amount is serious, it will pose a huge quality hazard to the normal use of the engine.

[0004] According to the structural and performance characteristics of the afterburner pump transmission components, in a high-speed working environment, it is difficult to eliminate the perpendicularity error between the plane of the dynamic ring and the theoretical central axis, which leads to the leakage of fuel and lubricating oil with a certain pressure through the gap between the plane of the dynamic ring and the graphite ring. During the repair process of the afterburner pump, it is necessary to disassemble and inspect the sealing device. After disassembly, it is found that there are abnormal phenomena of uneven running-in on the sealing surfaces of the base of the sealing device with oil leakage faults and the graphite ring. According to the original repair method, before assembly, the sealing contact surface of the dynamic ring is manually ground and repaired, and the graphite ring is a component that must be replaced with a new product. However, even after the dynamic ring is repaired to meet the process standards, there is still a certain oil leakage rate, which seriously affects the quality and efficiency of in-factory tests. At the same time, due to the geometric tolerance during processing (parallelism tolerance, parallelism, etc. of rotating parts), there is always an end face runout along the axis on the sealing surface where the dynamic ring contacts the graphite ring, which ultimately leads to a small amount of oil leakage between the repaired dynamic ring and the new graphite ring, seriously affecting the use safety of the aircraft engine. Utility Model Content

[0005] The purpose of this application is to provide a running-in device for eliminating oil leakage faults of the sealing device of an afterburner pump of an aero-engine, so as to solve the problem that after the sealing device of the afterburner pump is repaired to meet the standard according to the current process in the prior art, there is still a certain oil leakage rate between the moving ring and the graphite ring during use, resulting in frequent oil leakage faults of the sealing device of the engine afterburner pump in the field.

[0006] To achieve the above purpose, an embodiment of this application provides a running-in device for eliminating oil leakage faults of the sealing device of an afterburner pump of an aero-engine, including:

[0007] A mounting plate, a product support, a spline shaft connector, a diaphragm type elastic coupling, and a servo motor. Among them,

[0008] The product support is arranged at the right end of the mounting plate and is used to fix the bearing housing and the sealing device of the afterburner pump to be repaired;

[0009] The first connector arranged on the spline shaft connector is connected to the spline shaft extending from the left end of the bearing housing of the afterburner pump to be repaired through a sleeve tooth;

[0010] The right end of the diaphragm type elastic coupling is connected to the spline shaft connector;

[0011] The rotating shaft of the servo motor is connected to the left end of the diaphragm type elastic coupling.

[0012] Optionally, the product support includes a first support piece and a second support piece. Semi-circular notches coupled to the outer ring of the bearing housing of the afterburner pump are provided at the upper ends of the first support piece and the second support piece, and a pin hole is provided on the second support piece.

[0013] Optionally, it includes: a pin shaft assembly. The first shaft sleeve arranged at the right end of the diaphragm type elastic coupling is connected to the spline shaft connector through the pin shaft assembly.

[0014] Optionally, the rotating shaft of the servo motor is connected to the second shaft sleeve arranged at the left end of the diaphragm type elastic coupling.

[0015] Optionally, it includes: a servo motor base. The lower end of the servo motor base is fixed to the left end of the mounting plate, and a vertically arranged fixing plate is provided at the right end of the servo motor base;

[0016] The lower end of the servo motor housing is connected to the upper end of the servo motor base, and the right end of the servo motor housing is connected to the fixing plate.

[0017] Optionally, it includes: an imitation bush. The imitation bush is sleeved on the transmission shaft extending from the right end of the bearing housing of the afterburner pump to be repaired.

[0018] Optionally, it includes: a baffle support, which is arranged on one side of the diaphragm type elastic coupling. The lower end of the baffle support is connected to the mounting plate, and the upper end of the baffle support is provided with a baffle pin shaft. Both the left and right ends of the baffle pin shaft are rotationally connected to the upper end of the baffle support, and a baffle clip is arranged in the middle of the baffle pin shaft;

[0019] A baffle, the upper end of which is connected to the baffle clip;

[0020] A baffle bracket, the lower end of which is connected to the mounting plate, and the upper end of which is connected to the lower end of the baffle.

[0021] Optionally, it includes: a first pin, which is used to pass through the pin hole and a through hole opened on the sealing housing of the sealing device to fix the sealing device on the second support piece.

[0022] Optionally, it includes: handles, and there are two handles, which are respectively arranged at both ends of the mounting plate.

[0023] Optionally, it includes: a switch base, and a switch arranged in the switch base is electrically connected to the servo motor for controlling the start and stop of the servo motor;

[0024] A power switch indicator light, which is electrically connected to the switch arranged in the switch base for indicating the opening and closing of the switch.

[0025] The embodiments of the present application have the following advantages:

[0026] Compared with the prior art, the device provided by the above technical solution can effectively improve the running-in degree of the contact sealing surface between the moving ring and the graphite ring without affecting the assembly of the sealing device, reduce the form and position tolerances caused by machining and the perpendicularity error between the plane of the moving ring and the theoretical axis during operation, thereby improving the sealing performance of the sealing device. At the same time, by quantitatively controlling the rotational speed, rotational speed uniformity and circumferential running-in stroke of the servo motor, the automatic precise repair of the components of the sealing device is realized, thus ensuring the running-in degree between the moving ring and the graphite ring, reducing the maintenance cost, improving the repair efficiency of the sealing device, thereby enhancing the repair quality of the sealing device and preventing oil leakage faults during the use of the afterburner pump. By using the provided running-in device for eliminating oil leakage faults of the sealing device of the aero-engine afterburner pump, under the condition of simulating the actual relative movement between the moving ring and the graphite ring, the fitting degree at the sealing surface can be improved through the mutual running-in action of the two contact sealing surfaces, and the running-in marks and sealing performance of the moving ring base can be inspected; in addition, the device also includes the research and development of running-in tools and the improvement of running-in methods to ensure the running-in efficiency and enhance the repair quality of the sealing device. Through this device, oil leakage faults of the sealing device during the use of the afterburner pump can be prevented, the problem that the afterburner cannot be connected due to oil leakage of the sealing device of a certain type of aero-engine can be solved, the production efficiency and product quality can be improved, and finally the effect of improving quality and increasing efficiency can be achieved. Brief Description of the Drawings

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, without creative efforts, other implementation drawings can be obtained based on the provided drawings.

[0028] Figure 1 3D view of a running-in device for eliminating oil leakage faults of the sealing device of an aero-engine afterburner pump provided by at least one embodiment of the present application;

[0029] Figure 2 Front view of a running-in device for eliminating oil leakage faults of the sealing device of an aero-engine afterburner pump provided by at least one embodiment of the present application;

[0030] Figure 3 Top view of a running-in device for eliminating oil leakage faults of the sealing device of an aero-engine afterburner pump provided by at least one embodiment of the present application;

[0031] Figure 4 Cross-sectional view of the spline shaft connector of a running-in device for eliminating oil leakage faults of the sealing device of an aero-engine afterburner pump provided by at least one embodiment of the present application;

[0032] Figure 5Partial cross-sectional view of a pin shaft assembly of a running-in device for excluding oil leakage faults of a sealing device of an afterburner pump of an aeroengine provided by at least one embodiment of the present application;

[0033] Figure 6 Front view of a pin shaft assembly of a running-in device for excluding oil leakage faults of a sealing device of an afterburner pump of an aeroengine provided by at least one embodiment of the present application;

[0034] Figure 7 Connection schematic diagram among a servo motor rotating shaft, a diaphragm type elastic coupling, a pin shaft assembly, and a spline shaft connector of a running-in device for excluding oil leakage faults of a sealing device of an afterburner pump of an aeroengine provided by at least one embodiment of the present application;

[0035] Figure 8 Simulated bushing cross-sectional view of a running-in device for excluding oil leakage faults of a sealing device of an afterburner pump of an aeroengine provided by at least one embodiment of the present application.

[0036] Meanings of reference numerals:

[0037] 1 - Servo motor, 2 - Screw, 3 - Diaphragm type elastic coupling, 4 - Pin shaft assembly, 5 - Spline shaft connector, 6 - First pin, 7 - Simulated bushing, 8 - Product support, 9 - Baffle support, 10 - Handle, 11 - Servo motor base, 12 - Mounting plate, 13 - First support piece, 14 - Second support piece, 15 - Positioning hole, 16 - First connector, 17 - Switch base, 18 - Power switch indicator light, 19 - Hexagon head bolt, 20 - Baffle support, 21 - Baffle, 22 - Baffle clip, 23 - Baffle pin shaft, 24 - Pin shaft body, 25 - Spring, 26 - Steel ball, 27 - Second connector, 28 - Rotating shaft, 29 - First bushing, 30 - Afterburner pump bearing housing and sealing device assembly, 31 - Second bushing. Detailed implementation manners

[0038] The following specific embodiments illustrate the implementation manners of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0039] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and defined, the terms "set", "install", "connect", "couple" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0040] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0041] In the repair method in the prior art, only the sealing contact surface of the moving ring is manually ground and repaired before assembly, and the flatness meets the process requirements. The graphite ring is a necessary replacement part and is directly replaced with a new product. This repair method has certain defects. Manual grinding is prone to human error, which may lead to low grinding quality of the sealing contact surface of the moving ring. In addition, when grinding the sealing contact surface of the moving ring alone, it is impossible to simulate the perpendicularity error between the plane of the moving ring and the theoretical axis that may be caused during the relative movement of the two, resulting in uneven circumferential running-in marks.

[0042] An embodiment of the present application provides a repair device (i.e., a running-in device) for eliminating oil leakage faults in the afterburner seal device of an aeroengine. The device includes the following aspects:

[0043] First, carry out running-in repair under the condition of simulating the actual relative movement of the moving ring and the graphite ring to reduce the perpendicularity error between the plane of the moving ring and the theoretical axis caused by the high rotational speed of the afterburner pump. Second, ensure that the sealing surface of the moving ring base is evenly run-in, and accurately control the running-in stroke and rotational torque to ensure the tight fit of the moving ring and the graphite ring, and prevent oil leakage faults caused by geometric tolerance reasons (parallelism tolerance, parallelism, etc. of rotating parts) generated during machining. The specific implementation scheme includes:

[0044] An embodiment of the present application designs a running-in device for eliminating the oil leakage fault of the sealing device of an afterburner pump of an aeroengine, which is automatically controlled by a servo motor. The automatic precise repair of the sealing device assembly can be realized by quantitatively controlling the rotational speed, rotational speed uniformity and circumferential running-in stroke of the servo motor, so as to ensure the running-in degree between the moving ring and the graphite ring and improve the repair efficiency of the sealing device.

[0045] An embodiment of the present application provides a running-in device for eliminating the oil leakage fault of the sealing device of an afterburner pump of an aeroengine. By using the provided running-in device, the following can be achieved: 1. Place the bearing housing of the afterburner pump to be repaired and the sealing device assembly 30 on the product support 8 of the running-in device. The spline shaft at one end of the bearing housing of the afterburner pump is connected to the diaphragm type elastic coupling 3 of the running-in device through the first connector 16 of the spline shaft connector 5; 2. The automatic precise repair of the sealing device assembly is realized by quantitatively controlling the rotational speed, rotational speed uniformity and circumferential running-in stroke of the servo motor 1 of the running-in device.

[0046] Reference Figures 1 to 3 , the running-in device includes:

[0047] Mounting plate 12.

[0048] Product support 8, which is arranged at the right end of the mounting plate 12 and is used to fix the bearing housing of the afterburner pump to be repaired and the sealing device.

[0049] In some embodiments, the product support 8 includes a first support piece 13 and a second support piece 14. Semi-circular notches coupled to the outer ring of the bearing housing of the afterburner pump are provided at the upper ends of the first support piece 13 and the second support piece 14, and a pin hole is provided on the second support piece 14.

[0050] Spline shaft connector 5, and the first connector 16 provided on the spline shaft connector 5 is connected to the spline shaft extending from the left end of the bearing housing of the afterburner pump to be repaired through spline teeth.

[0051] Specifically, referring to Figure 4 , the spline shaft connector 5 includes a connected first connector 16 and a second connector 27. The first connector 16 is machined with internal spline teeth for connecting to the spline shaft at the left end of the bearing housing of the afterburner pump to be repaired through spline teeth and for transmitting the torque of the servo motor 1. The spline shaft connector 5 connects the moving ring and the graphite ring through the spline shaft, with accurate positioning and no offset, playing a role of fixing and positioning.

[0052] Diaphragm type elastic coupling 3, and the right end of the diaphragm type elastic coupling 3 is connected to the spline shaft connector 5.

[0053] Specifically, the diaphragm type elastic coupling 3 is adopted. Referring to Figure 7, the left end of the diaphragm elastic coupling 3 is directly connected to the bushing on the servo motor 1, and the right end is connected to the spline shaft connector 5, which can effectively reduce axial deviation and vibration, and reduce the perpendicularity error between the dynamic ring plane and the theoretical axis.

[0054] In some embodiments, it further includes: a pin shaft assembly 4. The first bushing 29 provided at the right end of the diaphragm elastic coupling 3 is connected to the spline shaft connector 5 through the pin shaft assembly 4.

[0055] Specifically, referring to Figure 5 and Figure 6 , the pin shaft assembly 4 includes a pin shaft body 24, a spring 25, and a steel ball 26. Referring to Figure 7 , the right end of the diaphragm elastic coupling 3 locks its first bushing 29 on the pin shaft assembly 4 through a second pin. The left end of the pin shaft assembly 4 is inserted into the first bushing 29 of the diaphragm elastic coupling 3, and the right end of the pin shaft assembly 4 is connected to the second connection head 27 provided on the spline shaft connector 5. The connection between the right end of the pin shaft assembly 4 and the second connection head 27 is specifically to snap the steel ball 26 of the pin shaft assembly 4 into the positioning hole 15 of the second connection head 27.

[0056] A servo motor 1, the rotating shaft 28 of the servo motor 1 is connected to the left end of the diaphragm elastic coupling 3.

[0057] Referring to Figure 7 , in some embodiments, the rotating shaft 28 of the servo motor 1 is connected to the second bushing 31 provided at the left end of the diaphragm elastic coupling 3.

[0058] Specifically, the servo motor 1 is an adjustable digital display motor. The motor speed and rotation time can be quantitatively controlled through the speed adjustment knob, and the rotation torque can be accurately controlled to meet the running-in requirements of the seal device of the booster pump in different situations. Compared with the manual rocker-type rotation, the running-in speed and the uniformity of the circumferential running-in stroke are greatly guaranteed. When the rotating shaft 28 of the servo motor 1 is connected to the second bushing 31 provided on the diaphragm elastic coupling 3, the diaphragm elastic coupling 3 is inserted onto the rotating shaft 28 of the servo motor 1 and connected through a third pin to lock the upper and lower halves of the second bushing 31 of the diaphragm elastic coupling 3 on the rotating shaft 28.

[0059] In some embodiments, it further includes: a servo motor base 11. The lower end of the servo motor base 11 is fixed to the left end of the mounting plate 12, and a vertically arranged fixing plate is provided at the right end of the servo motor base 11;

[0060] The lower end of the housing of the servo motor 1 is connected to the upper end of the servo motor base 11, and the right end of the housing of the servo motor 1 is connected to the fixing plate.

[0061] Specifically, the right end of the housing of the servo motor 1 is fixed to the fixing plate by a plurality of screws 2 (such as socket head cap screws 2).

[0062] In some embodiments, it further includes: an analog bushing 7, which is sleeved on the transmission shaft extending from the right end of the bearing housing of the booster pump to be repaired.

[0063] Specifically, referring to Figure 8 , the main function of the analog bushing 7 is to protect the transmission shaft exposed outside the bearing housing of the booster pump. The analog bushing 7 is directly sleeved on the transmission shaft of the booster pump to prevent the transmission shaft from being damaged during rotation.

[0064] In some embodiments, it further includes:

[0065] A baffle support 20, which is arranged on one side of the diaphragm type elastic coupling 3. The lower end of the baffle support 20 is connected to the mounting plate 12. The upper end of the baffle support 20 is provided with a baffle pin shaft 23. The left and right ends of the baffle pin shaft 23 are rotatably connected to the upper end of the baffle support 20. The middle part of the baffle pin shaft 23 is provided with a baffle clip 22;

[0066] A baffle 21, the upper end of which is connected to the baffle clip 22, for protecting the safe operation of the diaphragm type elastic coupling 3, the pin shaft assembly 4, and the spline shaft connector 5 shielded by the baffle 21;

[0067] A baffle bracket 9, the lower end of which is connected to the mounting plate 12, and the upper end of which is connected to the lower end of the baffle 21.

[0068] Specifically, the lower end of the baffle support 20 is connected to the mounting plate 12 by a hexagon head bolt 19.

[0069] In some embodiments, it further includes: a first pin 6, which is used to pass through the pin hole and the through hole opened on the sealing housing of the sealing device to fix the sealing device on the second support piece 14.

[0070] In some embodiments, it further includes: handles 10, and there are two handles 10, which are respectively arranged at both ends of the mounting plate 12.

[0071] In some embodiments, it further includes: a switch base 17, and the switch arranged in the switch base 17 is electrically connected to the servo motor 1 for controlling the start and stop of the servo motor 1.

[0072] In some embodiments, it further includes: a power switch indicator light 18, which is electrically connected to the switch arranged in the switch base 17 for indicating the opening and closing of the switch.

[0073] In summary, compared with the prior art, the device provided by the above technical solution can effectively improve the running-in degree of the contact sealing surface between the moving ring and the graphite ring without affecting the assembly of the sealing device, reduce the form and position tolerances generated by machining and the perpendicularity error between the plane of the moving ring and the theoretical axis during operation, thereby improving the sealing performance of the sealing device. At the same time, by quantitatively controlling the rotational speed, rotational speed uniformity, and circumferential running-in stroke of the servo motor, the automatic precise repair of the sealing device components is realized, thus ensuring the running-in degree between the moving ring and the graphite ring, reducing the maintenance cost, improving the repair efficiency of the sealing device, and thereby enhancing the repair quality of the sealing device, and preventing oil leakage faults from occurring during the use of the afterburner pump. By using the provided running-in device for eliminating oil leakage faults of the sealing device of the aero-engine afterburner pump, under the condition of simulating the actual relative movement between the moving ring and the graphite ring, the fitting degree of the sealing surface can be improved through the mutual running-in action of the two contact sealing surfaces, and the running-in marks and sealing performance of the moving ring base can be inspected; in addition, the device also includes the research and development of running-in tools and the improvement of running-in methods to ensure the running-in efficiency and enhance the repair quality of the sealing device. By using this device, oil leakage faults of the sealing device during the use of the afterburner pump can be prevented, the problem that the afterburner cannot be connected due to oil leakage of the sealing device of a certain type of aero-engine can be solved, the production efficiency and product quality can be improved, and finally the effect of improving quality and increasing efficiency can be achieved.

[0074] Note that unless otherwise directly stated, all features disclosed in this specification (including any appended claims, abstract, and drawings) can be replaced by alternative features for achieving the same, equivalent, or similar purposes. Therefore, unless otherwise clearly stated, each disclosed feature is only an example of a group of equivalent or similar features. When used, "furthermore", "preferably", "moreover", and "even more preferably" are simply the beginnings of the elaboration of another embodiment based on the foregoing embodiments. The content following "furthermore", "preferably", "moreover", or "even more preferably" in combination with the foregoing embodiments constitutes the complete composition of another embodiment. The combinations of several "furthermore", "preferably", "moreover", or "even more preferably" settings following the same embodiment can form another embodiment arbitrarily.

[0075] In the implementation of functions and steps, the corresponding functions and steps in each embodiment can also occur in a different order from that shown. For example, two consecutive functions and steps can actually be executed or implemented substantially in parallel, and sometimes they can also be executed or implemented in the reverse order, depending on the functions involved.

[0076] Although the present application has been described in detail above with general descriptions and specific embodiments, on the basis of the present application, some modifications or improvements can be made, which are obvious to those skilled in the art. Therefore, these modifications or improvements made without departing from the spirit of the present application all fall within the scope claimed by the present application.

Claims

1. A running-in device for eliminating oil leakage faults of the sealing device of an afterburner pump of an aeroengine, characterized in that, Including: A mounting plate, a product support, a spline shaft connector, a diaphragm elastic coupling, and a servo motor. Among them, The product support is arranged at the right end of the mounting plate and is used to fix the bearing housing and the sealing device of the afterburner pump to be repaired; The first connector provided on the spline shaft connector is connected to the spline shaft extending from the left end of the bearing housing of the afterburner pump to be repaired through spline teeth; The right end of the diaphragm elastic coupling is connected to the spline shaft connector; The rotating shaft of the servo motor is connected to the left end of the diaphragm elastic coupling.

2. The running-in device for eliminating the oil leakage fault of the sealing device of the afterburner pump of an aero-engine according to claim 1, characterized in that The product support includes a first support piece and a second support piece. Semi-circular notches coupled to the outer ring of the bearing housing of the afterburner pump are provided at the upper ends of the first support piece and the second support piece, and a pin hole is provided on the second support piece.

3. The running-in device for eliminating the oil leakage fault of the afterburner seal device of an aeroengine according to claim 1, characterized in that, Including: A pin shaft assembly. The first shaft sleeve provided at the right end of the diaphragm elastic coupling is connected to the spline shaft connector through the pin shaft assembly.

4. The running-in device for eliminating the oil leakage fault of the sealing device of the afterburner pump of an aero-engine according to claim 1, characterized in that The rotating shaft of the servo motor is connected to the second shaft sleeve provided at the left end of the diaphragm elastic coupling.

5. The running-in device for excluding oil leakage faults of the afterburner seal device of an aeroengine according to claim 1, characterized in that, Including: A servo motor base. The lower end of the servo motor base is fixed to the left end of the mounting plate, and a vertically arranged fixing plate is provided at the right end of the servo motor base; The lower end of the servo motor housing is connected to the upper end of the servo motor base, and the right end of the servo motor housing is connected to the fixing plate.

6. The running-in device for excluding oil leakage faults of the afterburner seal device of an aeroengine according to claim 1, characterized in that, Including: An imitation bush. The imitation bush is sleeved on the transmission shaft extending from the right end of the bearing housing of the afterburner pump to be repaired.

7. The running-in device for excluding oil leakage faults of the afterburner seal device of an aeroengine according to claim 1, characterized in that Including: A baffle support. The baffle support is arranged on one side of the diaphragm elastic coupling. The lower end of the baffle support is connected to the mounting plate, and a baffle pin shaft is provided at the upper end of the baffle support. Both the left and right ends of the baffle pin shaft are rotatably connected to the upper end of the baffle support, and a baffle clip is provided in the middle of the baffle pin shaft; A baffle. The upper end of the baffle is connected to the baffle clip; A baffle bracket. The lower end of the baffle bracket is connected to the mounting plate, and the upper end of the baffle bracket is connected to the lower end of the baffle.

8. The running-in device for excluding oil leakage faults of the afterburner seal device of an aeroengine according to claim 2, characterized in that Including: A first pin. The first pin is used to pass through the pin hole and the through hole provided on the sealing housing of the sealing device to fix the sealing device on the second support piece.

9. The running-in device for eliminating the oil leakage fault of the sealing device of the afterburner pump of an aeroengine according to claim 1, characterized in that Including: Handles. There are two handles, which are respectively arranged at both ends of the mounting plate.

10. The running-in device for eliminating the oil leakage fault of the sealing device of the afterburner pump of an aeroengine according to claim 1, characterized in that, Including: A switch seat. The switch provided in the switch seat is electrically connected to the servo motor and is used to control the start and stop of the servo motor; A power switch indicator light. The power switch indicator light is electrically connected to the switch provided in the switch seat and is used to indicate the opening and closing of the switch.

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