A universal adapter for a test bench for a flying engine and a casing

Abstract

The present invention belongs to the field of mechanical technology and relates to a universal adapter for a test bench for an aircraft engine accessory casing, comprising a universal output component a, an output shaft component b, and a quick-release plate component c. The output shaft component b is mounted at one end of the universal output component a and can rotate synchronously with the universal output component a. The quick-release plate component c is mounted at one end of the universal output component a and is located on the same side as the output shaft component b. The quick-release plate component c is arranged outside the output shaft component b. An input flange component d is mounted at one end of the universal output component a. The present invention can be applied to interfaces of various forms and sizes of aircraft engine accessory casings, thereby realizing the universalization and standardization of the test bench for the aircraft engine accessory casing and ultimately achieving rapid design.

Description

Technical Field

[0001] The invention belongs to the field of mechanical technology and relates to a universal adapter for a flying engine and casing test bench. Background Art

[0002] The aircraft accessory casing and the engine accessory casing (abbreviated as aircraft-engine accessory casing) are important transmission components of the engine. Their function is to provide the torque output by the starter ignition to the high-pressure rotor through the central transmission rod, driving the engine ignition. This process is called the starting state; after successful ignition, the high-pressure rotor returns the torque of the turbine rotor to the aircraft-engine accessory casing through the central transmission rod, driving the accessories installed on the casing to work. This process is called the working state.

[0003] Before using an aircraft accessory casing, its working state needs to be simulated during the ground test phase. Currently, during the ground test phase, this is completed with the help of an aircraft accessory casing test bench. Therefore, the aircraft accessory casing test bench is a simulation test bench established to complete the ground assessment test of aircraft accessory casings and engine accessory casings. Usually, a loading motor or hydraulic loading pump is required to achieve dynamic torque application of the accessory pump shaft. Due to the continuous development and improvement of aircraft accessory casings and engine accessory casings, the interfaces on aircraft accessory casings and engine accessory casings have also become more diverse. The currently used test benches can no longer meet the installation requirements of various accessory interfaces. Therefore, it is necessary to propose a universal adapter for aircraft accessory casing test benches that can be used for interfaces of various forms and sizes of aircraft accessory casings. Summary of the Invention

[0004] The technical problem solved by the present invention is to propose a universal adapter for a test bench for an aircraft engine accessory casing, which can be applicable to interfaces of various forms and sizes of aircraft engine accessory casings, realize the universalization and standardization of the test bench for aircraft engine accessory casings, and ultimately achieve rapid design.

[0005] The technical solution of the present invention:

[0006] A universal adapter for a test bench for a flying engine and a casing includes a universal output component a, an output shaft component b, and a quick-release plate component c. The output shaft component b is installed at one end of the universal output component a and can rotate synchronously with the universal output component a. The quick-release plate component c is installed at one end of the universal output component a and is located on the same side as the output shaft component b. The quick-release plate component c is arranged outside the output shaft component b. An input flange component d is installed at one end of the universal output component a.

[0007] Furthermore, the universal output assembly a includes a bearing sleeve 1, a bushing 1-1, a separator plate 2, an input seal 3, a transmission shaft 4, an inner retaining ring 7, an oil injection ring 8, an inner spacer ring 9, an outer retaining ring 10, an output seal 11, an oil return flange 12, a limit nut 13, a throttle joint 14, an oil supply flange 15, a positioning flange 16, a wave spring sleeve 17, a first O-ring 21, a second screw 22, a second O-ring 23, a third screw 24, a main shaft bearing 26, and a wave spring 28;

[0008] The outer cylindrical surface of the transmission shaft 4 is sleeved with a coaxially arranged inner spacer ring 9, which is in transitional cooperation with the transmission shaft 4 and can rotate synchronously with the transmission shaft. Two main shaft bearings 26 are also sleeved on the outer cylindrical surface of the transmission shaft 4, and the two main shaft bearings 26 are respectively arranged at both ends of the inner spacer ring 9. The oil injection ring 8 is coaxially arranged on the outside of the inner spacer ring 9, and the two ends of the oil injection ring 8 respectively contact the two main shaft bearings 26. The oil injection ring 8 is provided with an oil nozzle facing the two main shaft bearings 26, and the oil injection ring 8 is provided with an oil inlet and a positioning port. An inner retaining ring 7 and an outer retaining ring 10 are respectively installed on the side of the two main shaft bearings 26 away from the inner spacer ring 9. The outer retaining ring 10 is limited by the shoulder of the transmission shaft 4. The two main shaft bearings 26 and the nozzle ring 8 are coaxially sleeved with a bushing 1-1 on the outside. The bushing 1-1 limits the outer ring of the main shaft bearing 26 close to the inner retaining ring 7. The bushing 1-1 is coaxially sleeved with a bearing sleeve 1 on the outside. An oil return flow channel is provided in the bearing sleeve 1, and the oil return flow channel is connected to the oil return flange 12 provided on the bearing sleeve 1; the oil return flange 12 is connected to the bearing sleeve 1 through a third screw The oil return flange 12 is connected with the bearing sleeve 1 by a nail 24, and a first O-ring 21 is provided on the contact surface between the oil return flange 12 and the bearing sleeve 1; a separation disk 2 and an input seal 3 are provided on the end of the bearing sleeve 1 close to the inner retaining ring 7. The input seal 3 is located between the end face of the bearing sleeve 1 and the end face of the separation disk 2. An output seal 11 is provided on the end of the bearing sleeve 1 close to the outer retaining ring 10. A wave spring sleeve 17 is provided between the main shaft bearing 26 close to the outer retaining ring 10 and the nozzle ring 8. The wave spring sleeve 17 is close to the main shaft bearing 26. A wave spring 28 is provided in the wave spring sleeve 17. One end of the spring 28 is in contact with the wave spring sleeve, and the other end is in contact with the nozzle ring; the oil supply flange 15 is installed on the bearing sleeve 1 and is connected to the oil inlet on the oil injection ring 8. A throttle joint 14 is provided on the oil supply flange 15. The oil enters the oil injection ring 8 from the oil inlet on the oil supply flange 15, and is sprayed out by the oil nozzle of the oil injection ring 8 to lubricate the main shaft bearing 26. The oil then flows through the oil return channel and flows out from the oil return flange 12; the positioning flange 16 is installed on the bearing sleeve 1, and the end of the positioning flange 16 extends into the positioning hole of the oil injection ring 8.

[0009] Furthermore, the inner retaining ring 7 is limited by the locking nut 5 and the locking washer 6 provided on the transmission shaft 4 .

[0010] Furthermore, a first stainless steel self-tapping threaded sleeve 25 is provided at one end of the bearing sleeve 1 near the inner retaining ring 7. The first screw 18 and the first washer 19 cooperate with the first stainless steel self-tapping threaded sleeve 25 to fix the separator plate 2 and the input seal 3 to the end surface of the bearing sleeve 1 near the inner retaining ring 7.

[0011] A first stainless steel self-tapping threaded sleeve 25 is also provided on the end of the bearing sleeve 1 close to the outer retaining ring 10. The output seal 11 is fixed to the end face of the bearing sleeve 1 close to the outer retaining ring 10 by the first screw 18, the first washer 19 and the first stainless steel self-tapping threaded sleeve 25.

[0012] Furthermore, one end of the transmission shaft 4 close to the outer retaining ring 10 is threadedly connected to the limiting nut 13; the bearing sleeve 1 is provided with a second stainless steel self-tapping threaded sleeve 27 perpendicular to its axis.

[0013] Furthermore, the oil supply flange 15 is mounted on the bearing sleeve 1 by means of a second screw 22 ; a second O-ring 23 is mounted on the contact surface between the oil supply flange 15 and the bearing sleeve 1 .

[0014] Furthermore, a platinum resistance temperature sensor interface is installed on the bearing sleeve 1, which is connected to the main shaft bearing. The platinum resistance temperature sensor 20 is installed on the platinum resistance temperature sensor interface to monitor the temperature of the main shaft bearing in real time.

[0015] Furthermore, the output shaft assembly b includes a spline shaft 29, a hole retaining ring 30, and a shaft retaining ring 31. One end of the spline shaft 29 is arranged in the end of the transmission shaft 4 close to the separating disk 2, and cooperates with the inner hole of the transmission shaft 4 through an involute spline. The other end of the spline shaft 29 is arranged outside the transmission shaft 4 and is connected to the engine casing. When the rotating shaft 4 rotates, the spline shaft is driven to rotate synchronously; the shaft retaining ring 31 is arranged inside the transmission shaft 4, and an annular hole retaining ring 30 is arranged in the middle section of the spline shaft 29 to limit the spline shaft 29 from escaping from the transmission shaft.

[0016] Furthermore, the quick release plate assembly c includes a quick release plate 32 and a handle 33 . The quick release plate 32 is fixed to the bearing sleeve 1 by bolts, washers and nuts, and the handle 33 is fixedly connected to the quick release plate 32 .

[0017] Furthermore, the input flange assembly d includes an input flange 34 , which is mounted on one end of the bearing sleeve 1 close to the limiting nut 13 and located outside the limiting nut 13 , and is connected to the loading motor or gearbox.

[0018] Beneficial effects of the present invention: The universal adapter provided by the present invention adopts a universal output component a as the core component, which solves the problem that dozens of accessory adapters require different design schemes, and at the same time brings great convenience in equipment maintenance, spare parts reserves, etc. The present invention can be applied to interfaces of various forms and sizes of aircraft and launch accessory casings, realizing the universalization and standardization of aircraft and launch accessory casing test benches, and ultimately achieving rapid design. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A cross-sectional view of a universal output assembly a provided for this application;

[0020] Figure 2 A side view of a universal output assembly a provided for this application;

[0021] Figure 3 Schematic diagram of the output shaft assembly b provided in this application;

[0022] Figure 4 Schematic diagram of the quick release plate assembly c and input flange 34 provided in this application;

[0023] Figure 5 A side view of the quick-release tray assembly c provided for this application;

[0024] Figure 6 Schematic diagram of the bearing sleeve 1 and bushing 1-1 provided in this application. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the specific embodiments of the present invention, such as the shapes and structures of the various components involved, the relative positions and connection relationships between the various parts, the functions and working principles of the various parts, the manufacturing process and the operation and use methods, etc., through the description of the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention:

[0026] like Figure 1-6 As shown, a universal adapter for a flying engine and a casing test bench includes a universal output component a, an output shaft component b, and a quick-release plate component c. The output shaft component b is installed at one end of the universal output component a, and the quick-release plate component c is installed at one end of the universal output component a, located on the same side as the output shaft component b, and the quick-release plate component c is arranged outside the output shaft component b. An input flange component d is installed at one end of the universal output component a.

[0027] Among them, the universal output assembly a is the core component, and the universal output assembly a includes a bearing sleeve 1, a bushing 1-1, a separator 2, an input seal 3, a transmission shaft 4, a locking nut 5, a locking washer 6, an inner retaining ring 7, an oil injection ring 8, an inner spacer ring 9, an outer retaining ring 10, an output seal 11, an oil return flange 12, a limit nut 13, a throttle joint 14, an oil supply flange 15, a positioning flange 16, a wave spring sleeve 17, a first screw 18, a first washer 19, a first O-ring 21, a second screw 22, a second O-ring 23, a third screw 24, a first stainless steel self-tapping threaded sleeve 25, a spindle bearing 26, a second stainless steel self-tapping threaded sleeve 27, and a wave spring 28;

[0028] The outer cylindrical surface of the transmission shaft 4 is sleeved with a coaxially arranged inner spacer ring 9, which has a transition fit with the transmission shaft 4. The inner spacer ring 9 rotates synchronously with the transmission 4. Two main shaft bearings 26 are also sleeved on the outer cylindrical surface of the transmission shaft 4, and the two main shaft bearings 26 are respectively arranged at both ends of the inner spacer ring 9. The oil injection ring 8 is coaxially arranged on the outside of the inner spacer ring 9, and there is a gap between the oil injection ring 8 and the inner spacer ring 9 to ensure simple assembly. The two ends of the oil injection ring 8 respectively contact the two main shaft bearings 26, and the oil injection ring 8 is provided with an oil nozzle facing the two main shaft bearings 26. The oil injection ring 8 is provided with an oil inlet and a positioning port. The two main shaft bearings 26 are away from one end of the inner spacer ring 9. An inner retaining ring 7 and an outer retaining ring 10 are respectively installed on the side. The outer retaining ring 10 is limited by the shoulder of the transmission shaft 4. The inner retaining ring 7 is limited by the locking nut 5 and the locking washer 6 set on the transmission shaft 4. The two main shaft bearings 26 and the nozzle ring 8 are coaxially sleeved with a bushing 1-1 on the outside. The bushing 1-1 limits the outer ring of the main shaft bearing 26 close to the inner retaining ring 7. The bushing 1-1 is coaxially sleeved with the bearing sleeve 1 on the outside. An oil return flow channel is set in the bearing sleeve 1, and the oil return flow channel is connected to the oil return flange 12 set on the bearing sleeve 1; the oil return flange 12 is connected to the bearing sleeve 1 by a third screw 24, and a first O-ring 21 is set on the contact surface between the oil return flange 12 and the bearing sleeve 1;

[0029] A separation plate 2 and an input seal 3 are provided at one end of the bearing sleeve 1 close to the inner retaining ring 7. The input seal 3 is located between the end face of the bearing sleeve 1 and the end face of the separation plate 2. A first stainless steel self-tapping threaded sleeve 25 is provided at one end of the bearing sleeve 1 close to the inner retaining ring 7. The separation plate 2 and the input seal 3 are fixed to the end face of the bearing sleeve 1 close to the inner retaining ring 7 by means of a first screw 18, a first washer 19 and the first stainless steel self-tapping threaded sleeve 25.

[0030] An output seal 11 is provided at one end of the bearing sleeve 1 close to the outer retaining ring 10, and a first stainless steel self-tapping threaded sleeve 25 is also provided at the other end of the bearing sleeve 1 close to the outer retaining ring 10. The output seal 11 is fixed to the end face of the bearing sleeve 1 close to the outer retaining ring 10 by means of a first screw 18, a first washer 19 and the first stainless steel self-tapping threaded sleeve 25.

[0031] A wave spring sleeve 17 is arranged between the main shaft bearing 26 near the outer retaining ring 10 and the nozzle ring 8. The wave spring sleeve 17 is close to the main shaft bearing 26. A wave spring 28 is arranged in the wave spring sleeve 17. One end of the wave spring 28 contacts the wave spring sleeve, and the other end contacts the nozzle ring.

[0032] One end of the transmission shaft 4 close to the outer retaining ring 10 is threadedly connected to the limit nut 13 to ensure that after the flange 34 is installed, the flange is prevented from being thrown out during rotation.

[0033] The bearing sleeve 1 is provided with a second stainless steel self-tapping threaded sleeve 27 perpendicular to its axis, which is used as a lifting point.

[0034] Oil supply flange 15 is mounted on bearing sleeve 1 via second screws 22 and communicates with the oil inlet on oil injection ring 8. A throttle joint 14 is provided on oil supply flange 15. Oil enters oil injection ring 8 from the oil inlet on oil supply flange 15, where it is sprayed by the oil nozzles of oil injection ring 8 to lubricate main shaft bearing 26. The oil then flows through the oil return passage and out through oil return flange 12. A second O-ring 23 is installed on the contact surface between oil supply flange 15 and bearing sleeve 1 to seal the oil supply flange 15.

[0035] The positioning flange 16 is mounted on the bearing sleeve 1 , and the end of the positioning flange 16 extends into the positioning hole of the oil spray ring 8 to prevent the oil spray ring from rotating circumferentially.

[0036] A platinum resistance temperature sensor interface is installed on the bearing sleeve 1, which is connected to the main shaft bearing. The platinum resistance temperature sensor 20 is installed on the platinum resistance temperature sensor interface to monitor the temperature of the main shaft bearing in real time.

[0037] The output shaft assembly b includes a spline shaft 29, a hole retaining ring 30, and a shaft retaining ring 31, and is installed in the transmission shaft 4; one end of the spline shaft 29 is arranged in the end of the transmission shaft 4 close to the separating disk 2, and cooperates with the inner hole of the transmission shaft 4 through the shaft retaining ring 31. The shaft retaining ring 31 can prevent the spline shaft 29 from going deeper in the axial direction. The spline shaft 29 and the transmission shaft 4 are matched with an involute spline. When the rotating shaft 4 rotates, the spline shaft is driven to rotate together. An annular hole retaining ring 30 is set in the middle section of the spline shaft 29 to limit the spline shaft 29 from escaping from the transmission shaft; the end of the spline shaft 29 located outside the transmission shaft 4 is directly connected to the spline inside the transmission shaft of the flying engine casing.

[0038] The quick-release plate assembly C consists of a quick-release plate 32, a handle 33, and connecting components such as bolts, washers, and nuts. The quick-release plate 32 is secured to the bearing housing 1 via bolts, washers, and nuts, while the handle 33 is securely connected to the quick-release plate 32. The quick-release plate assembly C is a freely designable component. The end surface of the quick-release plate 32 features a stop and bevel, matching the mounting socket on the aircraft accessory case. It is secured with a quick-release ring. Installation to a different location requires only replacing the quick-release plate 32, thus offering a degree of versatility.

[0039] The input flange assembly d includes an input flange 34 , which is mounted on one end of the bearing sleeve 1 close to the limiting nut 13 and located outside the limiting nut 13 . The input flange 34 is connected to the loading motor or the gearbox.

[0040] The invention of this adapter is due to the fact that the mounting bases for various accessories of the aircraft engine casing vary in size, but the connection structure is basically a form of fastening with a stop and a bevel. The spline shaft 29 and the quick-release plate assembly C of different sizes are designed to be universal in any position. The input flange 34 can be connected to the hydraulic system or the electric loading system through a coupling to complete the simulated loading of the accessory by applying a reverse torque.

[0041] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A universal adapter for a test bench for a flying engine and a casing, characterized in that: The utility model comprises a universal output component a, an output shaft component b, and a quick release plate component c. The output shaft component b is installed at one end of the universal output component a and can rotate synchronously with the universal output component a. The quick release plate component c is installed at one end of the universal output component a and is located on the same side as the output shaft component b. The quick release plate component c is arranged outside the output shaft component b. An input flange component d is installed at one end of the universal output component a. The universal output component a comprises a bearing sleeve, a bushing, a separator, an input seal, a transmission shaft, an inner retaining ring, an oil injection ring, an inner spacer ring, an outer retaining ring, an output seal, an oil return flange, a limit nut, a throttle connection, and a plurality of other components. Head, oil supply flange, positioning flange, wave spring sleeve, first O-ring, second screw, second O-ring, third screw, main shaft bearing, wave spring; the outer cylindrical surface of the transmission shaft is sleeved with a coaxial inner spacer ring, the inner spacer ring and the transmission shaft transition fit, and can rotate synchronously with the transmission shaft, the outer cylindrical surface of the transmission shaft is also sleeved with two main shaft bearings, and the two main shaft bearings are respectively arranged at both ends of the inner spacer ring, the oil injection ring is coaxially arranged on the outside of the inner spacer ring, and the two ends of the oil injection ring respectively contact the two main shaft bearings, the oil injection ring is provided with an oil nozzle facing the two main shaft bearings, and the oil injection ring is provided with an oil inlet and a positioning port, The outer ring of the oil pump is connected with the support of the hub cap, and the support frame is connected with the support of the hub cap to form a round shank, and the bottom of the oil pump is connected with the support frame of the hub cap to form a round shank. The cam is connected to the oil pump sleeve by the oil pump nozzle, and the oil pump nozzle is connected to the oil pump nozzle of the oil pump sleeve to lubricate the main shaft bearing, and then the oil flows through the return oil channel and flows out from the return oil flange; the positioning flange is installed on the bearing sleeve, and the end of the positioning flange extends into the positioning hole of the oil injection ring; the end of the transmission shaft close to the outer retaining ring is threadedly connected to the limiting nut; the oil supply flange is installed on the bearing sleeve by a second screw; a second O-ring is installed on the contact surface of the oil supply flange and the bearing sleeve; the output shaft assembly b includes a spline shaft, a hole retaining ring, and a shaft retaining ring. One end of the spline shaft is arranged in the end of the transmission shaft close to the separator, and cooperates with the inner hole of the transmission shaft through an involute spline. The other end of the spline shaft is arranged outside the transmission shaft and is connected to the engine casing. When the transmission shaft rotates, it drives the spline shaft to rotate synchronously;The shaft retaining ring is set inside the transmission shaft, and the middle section of the spline shaft is provided with an annular hole retaining ring to prevent the spline shaft from coming out of the transmission shaft.

2. The universal adapter for a flight engine and casing test bench according to claim 1, characterized in that: The inner retaining ring is limited by a locking nut and a locking washer arranged on the transmission shaft.

3. The universal adapter for a flight engine and casing test bench according to claim 1, characterized in that: A first stainless steel self-tapping threaded sleeve is provided on one end of the bearing sleeve close to the inner retaining ring. The separator plate and the input seal are fixed to the end face of the bearing sleeve close to the inner retaining ring by means of a first screw, a first washer and the first stainless steel self-tapping threaded sleeve. A first stainless steel self-tapping threaded sleeve is also provided on one end of the bearing sleeve close to the outer retaining ring. The output seal is fixed to the end face of the bearing sleeve close to the outer retaining ring through the cooperation of the first screw, the first washer and the first stainless steel self-tapping threaded sleeve.

4. The universal adapter for a test bench for a flying engine and a casing according to claim 1, characterized in that: The bearing sleeve is provided with a second stainless steel self-tapping thread sleeve perpendicular to the axis thereof.

5. The universal adapter for a flight engine and casing test bench according to claim 1, characterized in that: A platinum resistance temperature sensor interface is installed on the bearing sleeve, which is connected to the main shaft bearing. The platinum resistance temperature sensor is installed on the platinum resistance temperature sensor interface to monitor the temperature of the main shaft bearing in real time.

6. The universal adapter for a flight engine and casing test bench according to claim 1, characterized in that: The quick release plate assembly C includes a quick release plate and a handle. The quick release plate is fixed to the bearing sleeve by bolts, washers and nuts, and the handle is fixedly connected to the quick release plate.

7. The universal adapter for a flight engine and casing test bench according to claim 1, characterized in that: The input flange assembly d includes an input flange, which is installed at one end of the bearing sleeve close to the limit nut and is located outside the limit nut. The input flange is connected to the loading motor or gearbox.

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