Gearbox simulation test device

Abstract

A gearbox simulation test device disclosed by the present invention comprises a device seat and an adjusting device, an analysis assembly is installed on one side of the device seat, a driving assembly is horizontally erected on the rear side of the analysis assembly, and a movable table group is arranged on one side of the power output end of the driving assembly. The adjusting device is arranged on the side, away from the driving assembly, of the movable table set, and a fixed angle plate is arranged on the side edge of the device base. According to the gearbox simulation test device, the adjusting device and the movable table group are arranged, the adjusting device can simulate complex variable loads borne by a gearbox of a helicopter in different flight states, such as different load conditions during takeoff, cruising and landing, and the movable table group is used for installing and fixing the gearbox and meanwhile, can simulate the complex variable loads of the gearbox in different flight states. Structural self-adaption is achieved through cooperation with operation of the adjusting device, and the device base, the analysis assembly, the driving assembly, the movable table set and the adjusting device have structural disassembly and assembly performance so that structural maintenance and adjustment can be facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of gearbox detection, and particularly to a gearbox simulation test device. Background Art

[0002] The helicopter gearbox is a key component in a helicopter, mainly responsible for converting the high-speed rotation generated by the engine into the low-speed rotation required by the rotor and transmitting the corresponding torque. This conversion process is crucial for the stable flight and precise control of the helicopter; The gearbox simulation test device is an experimental device used to simulate the fault vibration of the gearbox. By simulating faults, collecting fault vibration signals, transmitting and analyzing these signals, the purpose is to conduct experiments, analyze, and establish a diagnostic database and spectral image, providing an effective basis for the fault diagnosis of the gearbox.

[0003] For conventional gearbox simulation test devices, due to the relatively fixed structure, the ability to simulate the complex and variable loads borne by the gearbox under different flight states of the helicopter is relatively limited, which affects the reliability of detection. Summary of the Invention

[0004] The purpose of the present invention is to provide a gearbox simulation test device to solve the problem that in the gearbox simulation test device mentioned in the above background art, due to the relatively fixed structure, the ability to simulate the complex and variable loads borne by the gearbox under different flight states of the helicopter is relatively limited, which affects the reliability of detection.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A gearbox simulation test device includes a device base and an adjustment device. An analysis component is installed on one side of the device base, and a drive component is horizontally installed behind the analysis component. Moreover, an activity table group is arranged on one side of the power output end of the drive component. The adjustment device is arranged on the side of the activity table group away from the drive component. A fixed angle plate is arranged on the side of the device base. The adjustment device includes a support base. First assembly angle plates are arranged at the lower ends on both sides of the support base. Two sets of load adjustment hydraulic cylinders are horizontally installed at the upper end of the support base. Moreover, a connection combination plate is arranged at the power output end of the load adjustment hydraulic cylinder. And an auxiliary vibration sensor is installed on the surface of the connection combination plate away from the load adjustment hydraulic cylinder.

[0006] Further, the analysis component includes a comprehensive analyzer main body. A touch control screen is arranged on the front vertical surface of the comprehensive analyzer main body. And second assembly angle plates are arranged at the bottoms on both sides of the comprehensive analyzer main body.

[0007] Further, the touch control screen is obliquely installed on the front vertical surface of the integrated analyzer main body, and the second assembly angle plate and the integrated analyzer main body are integrally structured.

[0008] Further, the driving assembly includes a support platform. One end of the support platform is horizontally provided with a servo motor, and the power output end of the servo motor is connected to a gearbox. A stabilizing frame is arranged in the middle section of the gearbox, and one side of the stabilizing frame is connected to a buffer platform. At the same time, a stabilizing coupling is horizontally installed at the upper end of the buffer platform. Third assembly angle plates are arranged on both sides of the lower ends of the support platform and the buffer platform.

[0009] Further, the third assembly angle plates are both connected to the support platform and the buffer platform by welding. The stabilizing coupling horizontally penetrates through the upper end of the buffer platform, and one end of the stabilizing coupling is connected to the power output end of the gearbox. The servo motor, the gearbox, and the stabilizing coupling are all on the same horizontal central axis.

[0010] Further, the movable table group includes a detection table. Baffles are arranged on the four side edges of the top of the detection table. Vibration signal acquisition sensors are arranged at the four diagonal corners of the bottom of the detection table. The bottom of the vibration signal acquisition sensors is connected to ball sliders, and the bottom of the ball sliders is connected to guide rails.

[0011] Further, the ball sliders and the guide rails are connected and combined by grooved embedded installation, and the ball sliders and the vibration signal acquisition sensors are fixedly connected.

[0012] Further, the fixed angle plates are welded to the bottom of the two side edges of the device seat, and the fixed angle plates are arranged at equal intervals on the side of the device seat. The device seat, the analysis assembly, the driving assembly, the movable table group, and the adjustment device are structurally dismountable from each other.

[0013] The present invention provides a gearbox simulation test device, which has the following beneficial effects: 1. In the present invention, by providing a movable table group and an adjustment device, under the structural operation of the load adjustment hydraulic cylinder, the complex and variable loads borne by the gearbox of a helicopter in different flight states can be simulated, such as different load conditions during takeoff, cruise, and landing. With the structural setting of the baffle, the simulated rotor system connection components can be quickly replaced to adapt to a variety of rotor simulation modules. By changing parameters such as the moment of inertia of the rotor and the number of blades, the working environment of the gearboxes of different models of helicopters can be more realistically simulated, so as to flexibly and diversely detect the gearbox, thereby ensuring the authenticity and reliability of the simulation experiment. The structural mobility of the movable table group can perform structural self-adaptation assistance activities according to the operation of the adjustment device to ensure the normal operation of the adjustment device.

[0014] 2. In the present invention, vibration signal acquisition sensors are provided on one side of the baffle, and vibration signal acquisition sensors are also provided at the four diagonal corners of the bottom of the detection table. By using the above structure, vibration signals can be acquired at different positions of the gearbox. In cooperation with the main body of the comprehensive analyzer, the vibration responses in different fault states of the gearbox can be analyzed. At the same time, a model is constructed through the vibration responses, and the vibration responses of the coupled dynamics model of the gearbox are analyzed to ensure the reliability of the simulation detection of the device.

[0015] 3. In the present invention, since the analysis component, the drive component, and the adjustment device respectively adopt the first assembly angle plate, the second assembly angle plate, and the third assembly angle plate to achieve the detachable structure with the device seat, and the movable table group is arranged by using the detachable structure between the guide rail and the device seat, the various structural components can be modularized and can be appropriately adjusted according to the needs of simulation detection and the size of the gearbox. This can not only ensure the flexibility of the device structure but also facilitate the maintenance of the device structure. The fixed angle plate is welded to the bottom edges on both sides of the device seat. With the use of bolts, the entire device can be fixed to the operation tabletop to the greatest extent to ensure the stability of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the perspective view of the main body axis of a gearbox simulation test device of the present invention; Figure 2 is the structural schematic diagram of the analysis component of a gearbox simulation test device of the present invention; Figure 3 is the three-dimensional structural schematic diagram of the drive component of a gearbox simulation test device of the present invention; Figure 4 is the three-dimensional structural schematic diagram of the movable table group of a gearbox simulation test device of the present invention; Figure 5 is the three-dimensional structural schematic diagram of the adjustment device of a gearbox simulation test device of the present invention.

[0017] In the figure: 1, device seat; 2, analysis component; 201, main body of the comprehensive analyzer; 202, touch control screen; 203, second assembly angle plate; 3, drive component; 301, support table; 302, servo motor; 303, gearbox; 304, stabilizer; 4, movable table group; 401, detection table; 402, baffle; 403, vibration signal acquisition sensor; 404, ball screw slider; 405, guide rail; 5, adjustment device; 501, support seat; 502, first assembly angle plate; 503, load adjustment hydraulic cylinder; 504, connection combination plate; 505, auxiliary vibration sensor; 6, fixed angle plate. DETAILED DESCRIPTION OF THE INVENTION

[0018] The following further describes in detail the embodiments of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0019] As Figures 1 to 5 shown, a gearbox simulation test device includes a device base 1 and an adjustment device 5. An analysis component 2 is installed on one side of the device base 1, and a drive component 3 is horizontally mounted at the rear of the analysis component 2. Moreover, a movable table group 4 is arranged on one side of the power output end of the drive component 3. The adjustment device 5 is arranged on the side of the movable table group 4 away from the drive component 3. A fixed angle plate 6 is arranged on the side of the device base 1. The adjustment device 5 includes a support base 501. First assembly angle plates 502 are arranged at the lower ends of both sides of the support base 501. Two sets of load adjustment hydraulic cylinders 503 are horizontally installed at the upper end of the support base 501. Moreover, a connection combination plate 504 is arranged at the power output end of the load adjustment hydraulic cylinder 503. And an auxiliary vibration sensor 505 is installed on the surface of the connection combination plate 504 away from the load adjustment hydraulic cylinder 503. Among them, under the structural operation of the load adjustment hydraulic cylinder 503, the complex and variable loads borne by the gearbox of the helicopter under different flight states can be simulated, such as different load conditions during takeoff, cruise, and landing. And the structural mobility of the movable table group 4 can perform structural self-adaptive assistance activities according to the operation of the adjustment device 5 to ensure the normal operation of the adjustment device 5.

[0020] As Figures 1 to 5As shown in the figure, the analysis component 2 includes an integrated analyzer main body 201. A touch control screen 202 is arranged on the front vertical surface of the integrated analyzer main body 201. Second assembly angle plates 203 are arranged at both bottom sides of the integrated analyzer main body 201. The touch control screen 202 is obliquely installed on the front vertical surface of the integrated analyzer main body 201, and the second assembly angle plates 203 and the integrated analyzer main body 201 are integrally structured. The driving component 3 includes a support platform 301. A servo motor 302 is horizontally mounted at one end of the support platform 301. The power output end of the servo motor 302 is connected to a gearbox 303. A stabilizer 304 is arranged in the middle section of the gearbox 303. One side of the stabilizer 304 is connected to a buffer platform 305. A stable coupling 306 is horizontally installed at the upper end of the buffer platform 305. Third assembly angle plates 307 are arranged at both lower sides of the support platform 301 and the buffer platform 305. The third assembly angle plates 307 are welded to the support platform 301 and the buffer platform 305. The stable coupling 306 horizontally penetrates through the upper end of the buffer platform 305. One end of the stable coupling 306 is connected to the power output end of the gearbox 303. The servo motor 302, the gearbox 303 and the stable coupling 306 are all on the same horizontal central axis. By arranging a vibration signal acquisition sensor 403 on one side of the baffle 402 and arranging vibration signal acquisition sensors 403 at the four diagonal corners of the bottom of the detection platform 401, with the above-mentioned structural arrangement, vibration signals can be acquired at different positions of the gearbox.

[0021] As Figures 1 to 5 shown, the movable table group 4 includes a detection platform 401. Baffles 402 are arranged at the four side edges of the top of the detection platform 401. Vibration signal acquisition sensors 403 are arranged at the four diagonal corners of the bottom of the detection platform 401. The bottom of the vibration signal acquisition sensor 403 is connected to a ball slider 404. The bottom of the ball slider 404 is connected to a guide rail 405. The ball slider 404 and the guide rail 405 are connected and combined by means of grooved embedded installation. The ball slider 404 and the vibration signal acquisition sensor 403 are fixedly connected. Fixed angle plates 6 are welded to the bottom of both side edges of the device base 1. The fixed angle plates 6 are arranged at equal intervals on the side of the device base 1. The device base 1, the analysis component 2, the driving component 3, the movable table group 4, and the adjustment device 5 are mutually disassemblable in structure. Since the analysis component 2, the driving component 3, and the adjustment device 5 respectively adopt the first assembly angle plate 502, the second assembly angle plate 203, and the third assembly angle plate 307 to achieve the detachable structure with the device base 1, and the movable table group 4 is arranged by using the detachable structure between the guide rail 405 and the device base 1, appropriate adjustments can be made according to the needs of simulation detection and the size of the gearbox.

[0022] In summary, as Figures 1 to 5As shown, for the gearbox simulation test device, during use, first, the device base 1 is fixed in structure by using the fixed angle plate 6 in cooperation with bolts. The gearbox to be tested is fixed on the top surface of the test bench 401 with baffles 402 provided on four sides. Then, the connecting combined plate 504 at the output end of the load adjustment hydraulic cylinder 503 is fixedly connected to the side surface of the gearbox, and the auxiliary vibration sensor 505 is attached between the connecting combined plate 504 and the gearbox. Then, the transmission shaft structure of the gearbox is connected to the stable coupling 306 at the upper end of the buffer table 305; Under the operation of the servo motor 302 on one side of the support table 301 and in cooperation with the gearbox 303, the gearbox is driven through the coupling 306. During this process, the load adjustment hydraulic cylinder 503 at the upper end of the support seat 501 will drive the connecting combined plate 504 to simulate the load acting force on the gearbox. During this process, the test bench 401 will achieve slight displacement along the surface of the guide rail 405 by using the ball slider 404; At the same time, the vibration signal acquisition sensor 403 and the auxiliary vibration sensor 505 can collect vibration signals at different positions of the gearbox. In cooperation with the comprehensive analyzer main body 201, the vibration responses of the gearbox in different fault states can be analyzed. At the same time, a model is constructed through the vibration responses, and the vibration responses of the gearbox coupling dynamics model are analyzed to ensure the reliability of the device simulation test. The touch control screen 202 facilitates the real-time control of the operators.

[0023] The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A gearbox simulation test device, comprising a device base and an adjusting device, characterized in that: On one side of the device base, an analysis component is installed. A driving component is horizontally installed at the rear of the analysis component. On one side of the power output end of the driving component, a movable table group is provided. The adjusting device is arranged on the side of the movable table group away from the driving component. A fixed angle plate is provided on the side of the device base. The adjusting device includes a support base. At the lower ends on both sides of the support base, first assembly angle plates are provided. At the upper end of the support base, two sets of load-adjusting hydraulic cylinders are horizontally installed. At the power output end of the load-adjusting hydraulic cylinders, a connection combination plate is provided. On the surface of the connection combination plate away from the load-adjusting hydraulic cylinders, an auxiliary vibration sensor is installed.

2. The gearbox simulation test device according to claim 1, wherein, The analysis component includes a comprehensive analyzer main body. A touch control screen is provided on the front vertical surface of the comprehensive analyzer main body. Second assembly angle plates are provided at the bottom on both sides of the comprehensive analyzer main body.

3. The gearbox simulation test device according to claim 2, characterized in that, The touch control screen is obliquely installed on the front vertical surface of the comprehensive analyzer main body. The second assembly angle plates and the comprehensive analyzer main body are integrally structured.

4. A gearbox simulation test device according to claim 3, characterized in that, The driving component includes a support platform. At one end of the support platform, a servo motor is horizontally installed. The power output end of the servo motor is connected to a gearbox. A stabilizing frame is provided in the middle section of the gearbox. One side of the stabilizing frame is connected to a buffer platform. At the upper end of the buffer platform, a stabilizing coupling is horizontally installed. Third assembly angle plates are provided at the lower ends on both sides of the support platform and the buffer platform.

5. The gearbox simulation test device according to claim 4, wherein, The third assembly angle plates are welded to both the support platform and the buffer platform. The stabilizing coupling horizontally penetrates through the upper end of the buffer platform. One end of the stabilizing coupling is connected to the power output end of the gearbox. The servo motor, the gearbox, and the stabilizing coupling are all on the same horizontal central axis.

6. The gearbox simulation test device according to claim 5, wherein The movable table group includes a detection table. Baffles are provided at the four-side edges of the top of the detection table. Vibration signal acquisition sensors are provided at the four diagonal corners of the bottom of the detection table.

7. The gearbox simulation test device according to claim 6, characterized in that, The bottom of the vibration signal acquisition sensor is connected to a ball slider. The bottom of the ball slider is connected to a guide rail.

8. A gearbox simulation test device according to claim 7, characterized in that, The ball slider and the guide rail are connected and combined by a slotted embedded installation. The ball slider and the vibration signal acquisition sensor are fixedly connected.

9. The gearbox simulation test device according to claim 8, wherein The fixed angle plates are welded to the bottom edges on both sides of the device base. The fixed angle plates are arranged at equal intervals on the side of the device base. The device base, the analysis component, the driving component, the movable table group, and the adjusting device are structurally disassemblable from each other.

10. The gearbox simulation test device according to claim 9, characterized in that, The operation method is as follows: Fix the device base with the fixed angle plates and bolts. Place the gearbox to be detected on the detection table with baffles. Connect the connection combination plate at the output end of the load-adjusting hydraulic cylinder to the side of the gearbox, so that the auxiliary vibration sensor fits between the two; Connect the transmission shaft of the gearbox to the stabilizing coupling on the buffer platform. The servo motor on one side of the support platform operates. Through the cooperation of the gearbox, the gearbox is driven by the coupling; The load-adjusting hydraulic cylinder drives the connection combination plate to simulate the load force. The detection table is slightly displaced along the guide rail through the ball slider. The vibration signal acquisition sensor and the auxiliary vibration sensor collect the vibration signals at different positions of the gearbox. Cooperate with the comprehensive analyzer main body to analyze the vibration response and build a model. The touch control screen facilitates personnel to control in real time.

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