Non-inertial gearbox fault implantation test platform

Abstract

The invention relates to the technical field of gear box fault experiments, and discloses a non-inertial gear box fault implantation test platform which comprises a bottom plate, a top plate, a gear box fault test mechanism and a plurality of telescopic adjusting pieces. Wherein the top plate is located above the bottom plate. The gearbox fault experiment mechanism is installed on the top plate. The two ends of each telescopic adjusting piece are movably connected with hinge seats, and the hinge seats at the two ends of each telescopic adjusting piece are connected with the bottom plate and the top plate correspondingly. The position and the inclination angle of the top plate are changed by controlling the extension or shortening of the telescopic adjusting piece, so that the working states of the gearbox fault test mechanism under different working conditions are simulated. According to the invention, the top plate can be inclined within a certain range through the cooperative work of the telescopic member, so that the diving and lifting states of the gearbox flying on an airplane are simulated, and the working stability of the gearbox is verified greatly.

Description

Technical Field

[0001] The invention relates to the technical field of gearbox fault experiments, and in particular to a non-inertial system gearbox fault implantation test platform. Background Art

[0002] As a key component of high-dynamic carriers such as aviation electromechanical actuators and robot joints, gear transmission systems are affected by complex additional inertial effects (such as drag inertia, Coriolis inertia, and gyroscopic torque) when operating in a non-inertial system environment. These additional loads can cause gear meshing misalignment, drastic fluctuations in tooth root bending stress and tooth surface contact stress, aggravate vibration and deformation, and even cause system instability, seriously threatening operational safety. However, traditional gear system research is mostly based on the assumption of static foundation, ignoring the significant impact of the non-inertial system dynamic environment on the performance of the gearbox, which may lead to deviations in design and optimization.

[0003] In non-inertial systems, gear systems under extreme conditions such as high speed, heavy load and high vibration are not only affected by gravity, but also superimposed with complex dynamic loads. These effects are more significant in aviation service and rapid displacement of robot joints. Studying the dynamic stress addition effect and failure mechanism of gearboxes in non-inertial systems is of great significance to improving the load-bearing capacity and reliability of the system.

[0004] Therefore, it is urgent to build a non-inertial gearbox fault implantation test platform to simulate the dynamic loading environment under complex flight conditions and study the fault behavior and dynamic stress change law of the gear transmission system. The platform reveals the dynamic response and fault evolution of the gearbox under complex conditions by implanting fault simulation and non-inertial load action, providing technical support for optimizing gearbox design and improving the reliability of non-inertial transmission systems. Summary of the invention

[0005] In order to solve the technical problems raised in the background technology, the present invention provides a non-inertial gearbox fault implantation test platform.

[0006] The present invention is implemented by adopting the following technical scheme: a non-inertial system gearbox fault implantation test platform comprises a bottom plate, a top plate, a gearbox fault test mechanism and a plurality of telescopic adjustment parts.

[0007] The top plate is located above the bottom plate.

[0008] The gearbox failure test mechanism is installed on the top plate.

[0009] Both ends of each telescopic adjustment member are movably connected with hinge seats, and the hinge seats at both ends of the telescopic adjustment member are respectively connected to the bottom plate and the top plate.

[0010] The position and inclination angle of the top plate can be changed by controlling the extension or shortening of the telescopic adjustment member, thereby simulating the working state of the gearbox fault test mechanism under different working conditions.

[0011] The present invention can tilt the top plate within a certain range through the cooperation of the telescopic parts, thereby simulating the diving and lifting state of the gear box when flying on an airplane, which is of great help in verifying the working stability of the gear box.

[0012] As a further improvement of the above scheme, the telescopic adjustment member is a hydraulic cylinder or a pneumatic cylinder or an electric push rod. The travel and running speed of the telescopic adjustment member are adjustable, so that the experimental device can simulate more complex and extensive working conditions.

[0013] As a further improvement of the above scheme, a gearbox fault test mechanism, a magnetic powder brake, a test motor, a gearbox and a support are provided, wherein the output end of the test motor is connected to the power input end of the gearbox through a frequency converter, the power output end of the gearbox is connected to the magnetic powder brake, and the shafts in the gearbox fault test mechanism can be connected by couplings.

[0014] As a further improvement of the above scheme, a guide rail is fixed to the middle of the top surface of the top plate, and a mounting plate parallel to the top plate is also provided above the top plate. The gear box fault test mechanism is fixed to the mounting plate through the support therein, and a center sleeve is connected to the bottom of the mounting plate, and the bottom end of the center sleeve is slidably connected to the guide rail.

[0015] Through the above structure, the adjustment work can be performed separately on the basis of the operation of the telescopic part, thereby driving the gear box to slide back and forth along the direction of the guide rail to simulate the working conditions of the aircraft under uniform or variable speed motion when diving, lifting, or horizontal flight.

[0016] As a further improvement of the above scheme, a motor bracket is fixed to the outside of the center sleeve, a drive motor is fixed on the motor bracket, the output end of the drive motor is connected to drive gear 2, and a spur rack meshing with drive gear 2 is fixed on the outer surface of the guide rail along its length direction.

[0017] The present invention drives the driving gear to rotate by a driving motor, thereby driving the mounting plate and the gear box fault testing mechanism above the mounting plate to perform reciprocating motion.

[0018] As a further improvement of the above scheme, a connecting shaft is fixed in the middle of the bottom surface of the mounting plate, the connecting shaft and the center sleeve are coaxially connected for rotation, and a circumferential rotating mechanism is also arranged between the mounting plate and the top plate to drive the mounting plate to rotate around the central axis of the connecting shaft and the center sleeve.

[0019] Through the above structure, the mounting plate can also rotate around the center line of the connecting shaft to simulate the working condition of the aircraft when changing its heading during flight, further improving the applicability of the simulated working conditions of this experimental platform.

[0020] As a further improvement of the above scheme, the circumferential rotation mechanism includes an arc plate coaxially arranged with the connecting shaft, an arc rack fixed on the side of the arc plate, a driving gear meshing with the arc rack, and a power unit for driving the driving gear to rotate. The power unit can slide synchronously with the arc plate, and the power unit is connected to the mounting plate. The arc plate is provided with a guide hole for the guide rail to move through.

[0021] In this solution, the power unit can drive the driving gear 1 to rotate, and due to the meshing action of the driving gear 1 and the arc-shaped rack, it is convenient for it to drive the mounting plate to rotate.

[0022] As a further improvement of the above scheme, the power unit includes a turning motor arranged on a mounting plate, a mounting sleeve connected to the bottom surface of the mounting plate, and a connecting shaft connecting the output shaft of the turning motor and the driving gear 1, a through hole is arranged inside the mounting sleeve, the connecting shaft movably passes through the through hole, and the outer side of the mounting sleeve is connected to the arc plate through a connecting module, so that the mounting sleeve and the arc plate move synchronously. Since the arc plate, the mounting sleeve and the power unit move synchronously, no matter where the central sleeve slides on the guide rail, the mounting plate can be rotated circumferentially, thereby simulating the turning condition of the aircraft.

[0023] As a further improvement of the above scheme, the connecting module includes a connecting plate sleeved on the outside of the mounting sleeve, a connecting rod connected to the connecting plate, a guide groove opened on the side of the arc plate, and a sliding plate sliding in the guide groove, and the sliding plate is connected to one end of the connecting rod.

[0024] As a further improvement of the above scheme, a limit block is further provided at the groove of the guide groove, a through hole for the connecting rod to pass through is provided in the middle of the limit block, a movable plate is also movably provided on the outer side of the arc plate, a guide portion is provided on the top of the movable plate, an arc-shaped slide groove is provided on the top surface of the arc plate along its length direction, and the guide portion and the arc-shaped slide groove are slidably connected.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The non-inertial system gearbox fault implantation test platform proposed by the present invention comprises a bottom plate, a top plate, a gearbox fault test mechanism and a plurality of telescopic adjustment members. The top plate is located above the bottom plate. The gearbox fault test mechanism is installed on the top plate. The two ends of the telescopic adjustment member are respectively connected to the bottom plate and the top plate.

[0027] The present invention controls the extension or shortening of the telescopic adjustment member to change the position and the inclination angle of the top plate, thereby simulating the working state of the gear box fault test mechanism under different working conditions.

[0028] The present invention can tilt the top plate within a certain range through the cooperation of the telescopic parts, thereby simulating the diving and lifting state of the gear box when flying on an airplane, which is of great help in verifying the working stability of the gear box. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a three-dimensional diagram of the overall structure of the non-inertial gearbox fault implantation test platform proposed in Example 1 of the present invention;

[0030] Figure 2 This is a front view of the overall structure of the non-inertial gearbox fault implantation test platform proposed in Example 1 of the present invention;

[0031] Figure 3 This is a front view of the overall structure of the non-inertial gearbox fault implantation test platform proposed in Example 2 of the present invention;

[0032] Figure 4 A three-dimensional diagram of the mounting plate and the top plate and some structures thereof in Example 2 of the present invention;

[0033] Figure 5 for Figure 4 The three-dimensional structure diagram after removing the mounting plate;

[0034] Figure 6 For the present invention Figure 5 The enlarged view of point D;

[0035] Figure 7 For the present invention Figure 3 A magnified image of point A;

[0036] Figure 8 For the present invention Figure 7 Enlarged view of point C;

[0037] Fig. 9 For the present invention Figure 3 Enlarged view of point B.

[0038] Description of main symbols:

[0039] In the figure: bottom plate 1, top plate 2, gear box fault test mechanism 3, magnetic powder brake 301, test motor 304, gear box 302, support 303, telescopic adjustment member 4, hinge seat 401, mounting plate 5, guide rail 6, mounting sleeve 7, connecting plate 8, drive gear 1 9, arc plate 10, perforation 11, guide part 12, movable plate 13, limit block 14, connecting rod 15, guide groove 16, sliding plate 17, center sleeve 18, connecting shaft 19, drive motor 20, drive gear 2 21, spur rack 22, center hole 23, arc rack 24, motor bracket 25, arc slide groove 26, turning motor 27, connecting shaft 28. DETAILED DESCRIPTION

[0040] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0041] Embodiment 1:

[0042] Reference Figure 1-Figure 2 The non-inertial gearbox fault implantation test platform proposed in this scheme includes a bottom plate 1, a top plate 2, a gearbox fault test mechanism 3 and a plurality of telescopic adjustment members 4. As a further improvement of the above scheme, the telescopic adjustment member 4 is a hydraulic cylinder or a pneumatic cylinder or an electric push rod. The travel and running speed of the telescopic adjustment member 4 are adjustable, so that the experimental device can simulate more complex and extensive working conditions.

[0043] The top plate 2 is located above the bottom plate 1 .

[0044] The gearbox fault test mechanism 3 is installed on the top plate 2. The gearbox fault test mechanism 3 can be a product of Zhenjiang Tianyu Technology Co., Ltd., model TY112G-3. The planetary gearbox fault implantation test platform can quickly simulate various fault characteristics of the planetary gearbox under different speeds and load conditions, and complete the experimental research of related fault diagnosis. The test platform is manufactured with modular design and can flexibly configure corresponding functions. It is widely used in scientific research, teaching, industry and other fields. The planetary gearbox can simulate various fault characteristics of the sun gear, planetary gear, and gear ring, such as cracks, broken teeth, pitting, wear, etc.

[0045] Specifically, the gearbox fault test mechanism 3, the magnetic powder brake 301, the test motor 304, the gearbox 302 and the support 303, wherein the output end of the test motor 304 is connected to the power input end of the gearbox 302 through a frequency converter, the power output end of the gearbox 302 is connected to the magnetic powder brake 301, and the shafts in the gearbox fault test mechanism 3 can be connected by couplings.

[0046] In this solution, both ends of each telescopic adjustment member 4 are movably connected with hinge seats 401, and the hinge seats 401 at both ends of the telescopic adjustment member 4 are respectively connected to the bottom plate 1 and the top plate 2. The hinge seats 401 are made of stainless steel.

[0047] The position and the tilt angle of the top plate 2 are changed by controlling the extension or shortening of the telescopic adjustment member 4, so as to simulate the working state of the gearbox fault test mechanism 3 under different working conditions.

[0048] The present invention can make the top plate 2 tilt within a certain range through the cooperation of the telescopic member 4, thereby simulating the diving and lifting state of the gear box when flying on an airplane, which is of great help in verifying the working stability of the gear box.

[0049] Embodiment 2:

[0050] Reference Figure 3-Figure 9 As a further improvement of Example 1, this scheme has a guide rail 6 fixed in the middle of the top surface of the top plate 2, and a mounting plate 5 parallel to the top plate 2 is also provided above the top plate 2. The gearbox fault test mechanism 3 is fixed on the mounting plate 5 through the support 303 therein, and the bottom of the mounting plate 5 is connected with a center sleeve 18, and the bottom end of the center sleeve 18 is slidably connected to the guide rail 6.

[0051] Through the above structure, the present solution can independently perform adjustment work based on the operation of the telescopic part, thereby driving the gear box to slide back and forth along the direction of the guide rail to simulate the working conditions of the aircraft in uniform or variable speed motion during dive, lift, and horizontal flight.

[0052] Specifically, in this solution, a motor bracket 25 is fixed to the outside of the center sleeve 18, a drive motor 20 is fixed on the motor bracket 25, an output end of the drive motor 20 is connected to a drive gear 21, and a spur rack 22 meshing with the drive gear 21 is fixed on the outer surface of the guide rail 6 along its length direction.

[0053] In the present invention, the driving motor 20 drives the driving gear 21 to rotate, thereby driving the mounting plate 5 and the gear box fault testing mechanism 3 above it to perform reciprocating motion.

[0054] In order to better simulate the flight of an aircraft, a connecting shaft 19 is fixed to the middle of the bottom surface of the mounting plate 5, the connecting shaft 19 and the center sleeve 18 are coaxially connected for rotation, and a circumferential rotating mechanism is also provided between the mounting plate 5 and the top plate 2 to drive the mounting plate 5 to rotate around the central axis of the connecting shaft 19 and the center sleeve 18.

[0055] The mounting plate 5 can also be made to rotate around the center line of the connecting shaft 19 to simulate the working condition of the aircraft when changing its course during flight, thereby further improving the application scope of the simulated working conditions of the experimental platform.

[0056] It should be noted that in this scheme, reference Figure 6 and Fig. 9 The circumferential rotating mechanism includes an arc plate 10 coaxially arranged with the connecting shaft 19, an arc rack 24 fixed to the side of the arc plate 10, a driving gear 9 meshing with the arc rack 24, and a power unit for driving the driving gear 9 to rotate. The power unit can slide synchronously with the arc plate 10, and the power unit is connected to the mounting plate 5. A guide hole is opened on the arc plate 10 for the guide rail 6 to move through.

[0057] In this solution, the power unit can drive the driving gear 9 to rotate, and due to the meshing action of the driving gear 9 and the arc-shaped rack 24, it is convenient for it to drive the mounting plate 5 to rotate.

[0058] In this solution, the power unit includes a turning motor 27 arranged on the mounting plate 5, a mounting sleeve 7 connected to the bottom surface of the mounting plate 5, and a connecting shaft 28 connecting the output shaft of the turning motor 27 and the driving gear 9. The mounting sleeve 7 is provided with a through hole, and the connecting shaft 28 moves through the through hole. The outer side of the mounting sleeve 7 is connected to the arc plate 10 through a connecting module, so that the mounting sleeve 7 and the arc plate 10 move synchronously. Since the arc plate 10, the mounting sleeve 7 and the power unit move synchronously, no matter where the center sleeve 18 slides on the guide rail, the mounting plate 5 can be rotated circumferentially, thereby simulating the working condition of the aircraft turning. In this solution, the turning motor 27 can be a servo motor, which is used with an external power supply.

[0059] Furthermore, the connecting module includes a connecting plate 8 sleeved on the outside of the mounting sleeve 7, a connecting rod 15 connected to the connecting plate 8, a guide groove 16 opened on the side of the arc plate 10, and a sliding plate 17 slidingly arranged in the guide groove 16, and the sliding plate 17 is connected to one end of the connecting rod 15.

[0060] In order to make the arc plate slide synchronously with the installation sleeve 7, a limit block 14 is also provided at the notch of the guide groove 16, and a through hole is provided in the middle of the limit block 14 for the connecting rod 15 to pass through. A movable plate 13 is also movably provided on the outer side of the arc plate 10, and a guide portion 12 is provided on the top of the movable plate 13. An arc-shaped slide groove 26 is provided on the top surface of the arc plate 10 along its length direction, and the guide portion 12 and the arc-shaped slide groove 26 are slidably connected. The movable plate 13 can be made of a magnetic metal plate, and its smooth surface can reduce the friction generated during movement. At the same time, referring to Figure 8 By utilizing the sliding cooperation between the guide portion 12 and the arc-shaped slide groove 26, it is possible to conveniently keep the arc-shaped plate and the mounting sleeve 7 synchronized in the sliding direction. One end of the connecting rod 15 in this scheme can be spirally connected to the connecting plate 8, and the other end thereof passes through the limit block 14 and is clamped with the sliding plate 17, thereby driving the sliding plate 17 to slide along the guide groove 16.

[0061] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. Non-inertial gearbox fault implantation test platform, characterized by: Including bottom plate, top plate, gearbox fault test mechanism and several telescopic adjustment parts: Wherein, the top plate is located above the bottom plate; The gearbox failure test mechanism is installed on the top plate; Both ends of each telescopic adjustment member are movably connected with hinged seats, and the hinged seats at both ends of the telescopic adjustment member are respectively connected to the bottom plate and the top plate; The position and inclination angle of the top plate can be changed by controlling the extension or shortening of the telescopic adjustment member, thereby simulating the working state of the gearbox fault test mechanism under different working conditions.

2. The non-inertial gearbox fault implantation test platform according to claim 1, characterized in that: The telescopic adjustment member is a hydraulic cylinder or a pneumatic cylinder or an electric push rod.

3. The non-inertial gearbox fault implantation test platform as claimed in claim 2, characterized in that: A gearbox fault testing mechanism, a magnetic powder brake, a test motor, a gearbox and a support, wherein the output end of the test motor is connected to the power input end of the gearbox through a frequency converter, the power output end of the gearbox is connected to the magnetic powder brake, and the shafts in the gearbox fault testing mechanism can be connected through couplings.

4. The non-inertial gearbox fault implantation test platform as claimed in claim 3, characterized in that: A guide rail is fixed in the middle of the top surface of the top plate, and a mounting plate parallel to the top plate is also provided above the top plate. The gear box fault test mechanism is fixed on the mounting plate through the support therein, and a center sleeve is connected to the bottom of the mounting plate, and the bottom end of the center sleeve is slidably connected to the guide rail.

5. The non-inertial gearbox fault implantation test platform according to claim 4, characterized in that: A motor bracket is fixed on the outside of the center sleeve, a driving motor is fixed on the motor bracket, the output end of the driving motor is connected to driving gear 2, and a spur rack meshing with driving gear 2 is fixed on the outer surface of the guide rail along its length direction.

6. The non-inertial gearbox fault implantation test platform according to claim 4, characterized in that: A connecting shaft is fixed in the middle of the bottom surface of the mounting plate. The connecting shaft and the center sleeve are coaxially connected for rotation. A circumferential rotating mechanism is also provided between the mounting plate and the top plate to drive the mounting plate to rotate around the central axis of the connecting shaft and the center sleeve.

7. The non-inertial gearbox fault implantation test platform according to claim 5, characterized in that: The circumferential rotating mechanism includes an arc plate coaxially arranged with the connecting shaft, an arc rack fixed on the side of the arc plate, a driving gear meshing with the arc rack, and a power unit for driving the driving gear to rotate. The power unit can slide synchronously with the arc plate, and the power unit is connected to the mounting plate. A guide hole is opened on the arc plate for the guide rail to move through.

8. The non-inertial gearbox fault implantation test platform according to claim 7, characterized in that: The power unit includes a turning motor arranged on a mounting plate, a mounting sleeve connected to the bottom surface of the mounting plate, and a connecting shaft connecting the output shaft of the turning motor and a driving gear. A through hole is arranged in the mounting sleeve, and the connecting shaft moves through the through hole. The outer side of the mounting sleeve is connected to the arc plate through a connecting module, so that the mounting sleeve and the arc plate move synchronously.

9. The non-inertial gearbox fault implantation test platform according to claim 8, characterized in that: The connection module comprises a connection plate sleeved on the outside of the installation sleeve, a connecting rod connected to the connection plate, a guide groove arranged on the side of the arc plate and a sliding plate sliding in the guide groove, wherein the sliding plate is connected to one end of the connecting rod.

10. The non-inertial gearbox fault implantation test platform according to claim 9, characterized in that: A limit block is also arranged at the groove of the guide groove, a through hole for the connecting rod to pass through is opened in the middle of the limit block, a movable plate is also movably arranged on the outer side of the arc plate, a guide part is arranged on the top of the movable plate, an arc-shaped slide groove is opened on the top surface of the arc plate along its length direction, and the guide part and the arc-shaped slide groove are slidably connected.

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