Aviation piston engine gearbox test device and test method

Abstract

The invention discloses an aviation piston engine gearbox testing device and method, and relates to the technical field of engine gearbox tests.The aviation piston engine gearbox testing device comprises an operation control system, a variable frequency motor and a movable supporting platform, the variable frequency motor is arranged at the top end of the movable supporting platform, and a diaphragm coupling is installed at the output end of the variable frequency motor; a fixed table is installed at the top end of the movable supporting platform, a gear box is arranged on one side of the fixed table through a fixing frame, a data acquisition system is arranged at the top end of the fixed table, and an operation control system is arranged at the top end of a variable frequency motor through a support. The rotating speed of each node is adjusted through the knob type rotating speed adjusting button, so that the operation rotating speed of the gearbox is controlled, meanwhile, the data acquisition system acquires operation information, closed-loop control is formed, and the test reliability and stability are improved conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of engine gearbox tests, and specifically to a test device for an aviation piston engine gearbox. Background Technique

[0002] In the process of the domestic development of existing aviation piston engine gearboxes, reliability and stability tests need to be completed on a test bench; the gearbox is one of the important components of an aviation piston engine, and its main functions are mechanical devices for accelerating and decelerating, changing the transmission direction, changing the transmission torque, and distributing power.

[0003] However, the existing test devices for aviation piston engine gearboxes have the following problems during use: when performing performance tests on traditional gearboxes, the accuracy of test data parameters during the test process is not high, and the stability and reliability of existing technologies cannot be satisfied. Summary of the Invention

[0004] The purpose of the present invention is to provide a test device for an aviation piston engine gearbox to solve the related problems raised in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A test device and test method for an aviation piston engine gearbox, including an operation control system, a variable-frequency motor, and a mobile support platform. The top of the mobile support platform is provided with a variable-frequency motor, and a diaphragm coupling is installed at the output end of the variable-frequency motor. A fixed platform is installed at the top of the mobile support platform, and a gearbox is provided on one side of the fixed platform through a fixed frame. A data acquisition system is provided at the top of the fixed platform, and an operation control system is provided at the top of the variable-frequency motor through a bracket.

[0006] For the test device for an aviation piston engine gearbox provided by this technical solution, the operation control system includes operation parameter monitoring and speed adjustment buttons. Operation parameter monitoring is provided inside the operation control system, and speed adjustment buttons are provided on the outer wall of the operation control system.

[0007] For the test device for an aviation piston engine gearbox provided by this technical solution, a speed sensor body is provided below the variable-frequency motor through a bracket, and a speed sensor detection system connected to the output end of the speed sensor body is installed on one side of the variable-frequency motor.

[0008] For the test device for an aviation piston engine gearbox provided by this technical solution, a pressure sensor for detecting the oil pressure of the gearbox is provided inside the fixed platform, and a temperature sensor for detecting the temperature of the gearbox is provided on one side of the fixed platform.

[0009] An aviation piston engine gearbox test device provided by this technical solution, a plurality of universal wheels are arranged at the bottom end of the movable support platform.

[0010] An aviation piston engine gearbox test device provided by this technical solution, a threaded groove is opened inside the movable support platform, and a T-shaped rotating rod is arranged inside the threaded groove, and a pressing block is arranged at the bottom end of the T-shaped rotating rod.

[0011] A test method for an aviation piston engine gearbox test device provided by this technical solution is characterized in that: Step 1: Push the speed sensor detection system to move the movable support platform to the test site, rotate the T-shaped rotating rod to drive the pressing block to fit with the ground, and complete the fixation; Step 2: Insert the gearbox into the fixing sleeve inside the fixing table, and then fix the gearbox inside the fixing table with a nut; Step 3: Install the variable-frequency motor connected to the three-phase power supply above the movable support platform, and connect it to the variable-frequency motor and the gearbox with a diaphragm coupling; Step 4: Monitor and collect data on the speed, temperature and pressure of the gearbox through the speed sensor body, pressure sensor and temperature sensor; Step 5: Start the variable-frequency motor, confirm that the operating state of the gearbox is normal, adjust the speed of each node through the speed adjustment button, realize the control of the operating speed of the gearbox, and at the same time monitor the operating parameters for data collection to form a closed-loop control.

[0012] Compared with the prior art, the present invention provides an aviation piston engine gearbox test device, which has the following beneficial effects: 1. The present invention monitors and collects data on the speed, temperature and pressure of the gearbox by connecting the speed sensor body, pressure sensor and temperature sensor, and then starts the variable-frequency motor, confirms that the operating state of the gearbox is normal, and adjusts the speed of each node through the knob-type speed adjustment button, so as to realize the control of the operating speed of the gearbox. At the same time, the data acquisition system collects the operating information to form a closed-loop control, which is convenient for improving the reliability and stability of the test.

[0013] 2. The present invention moves the movable support platform at the universal wheel to the test site position, and then rotates the T-shaped rotating rod to engage with the threaded groove, and the threaded groove drives the pressing block to move downward to fit with the ground to complete the fixation. This test device has the advantages of low cost, convenient operation and convenient movement compared with the traditional laboratory bench, can effectively reduce the R & D cost, and has a low input cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2Schematic diagram of the front sectional view of the present invention; Figure 3 Schematic diagram of the left view of the mobile support platform and the diaphragm coupling of the present invention.

[0015] In the figure: 1. Operation control system; 101. Operation parameter monitoring; 102. Rotation speed adjustment button; 2. Rotation speed sensor detection system; 201. Rotation speed sensor body; 3. Data acquisition system; 301. Pressure sensor; 302. Temperature sensor; 4. Variable frequency motor; 401. Diaphragm coupling; 5. Fixed platform; 6. Mobile support platform; 601. Universal wheel; 602. Threaded groove; 603. T-shaped rotating rod; 604. Pressing block. Specific embodiments

[0016] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] Embodiment 1, as Figure 1-2 shown, the present invention provides a technical solution: an aviation piston engine gearbox test device, including an operation control system 1, a variable frequency motor 4 and a mobile support platform 6. The top of the mobile support platform 6 is provided with a variable frequency motor 4, and the output end of the variable frequency motor 4 is installed with a diaphragm coupling 401. The top of the mobile support platform 6 is installed with a fixed platform 5, and a gearbox is provided on one side of the fixed platform 5 through a fixing frame. The top of the fixed platform 5 is provided with a data acquisition system 3. The top of the variable frequency motor 4 is provided with an operation control system 1 through a bracket. The operation control system 1 includes an operation parameter monitoring 101 and a rotation speed adjustment button 102. The operation parameter monitoring 101 is arranged inside the operation control system 1, and the rotation speed adjustment button 102 is arranged on the outer wall of the operation control system 1. The rotation speed sensor body 201 is arranged below the variable frequency motor 4 through a bracket. A rotation speed sensor detection system 2 connected to the output end of the rotation speed sensor body 201 is installed on one side of the variable frequency motor 4. A pressure sensor 301 for detecting the oil pressure of the gearbox is arranged inside the fixed platform 5, and a temperature sensor 302 for detecting the temperature of the gearbox is arranged on one side of the fixed platform 5. By connecting the rotation speed sensor body 201, the pressure sensor 301 and the temperature sensor 302, the rotation speed, temperature and pressure of the gearbox are monitored and data is collected. Then, by starting the variable frequency motor 4, it is confirmed that the operation state of the gearbox is normal, and the rotation speed of each node is adjusted through the knob-type rotation speed adjustment button 102, so as to realize the control of the operation rotation speed of the gearbox. At the same time, the data acquisition system 3 collects operation information to form a closed-loop control.

[0018] Embodiment 2, as Figure 1-3 shown, the present invention provides a technical solution: an aviation piston engine gearbox test device, including a plurality of universal wheels 601 provided at the bottom of a moving support platform 6. A threaded groove 602 is formed inside the moving support platform 6, and a T-shaped rotating rod 603 is arranged inside the threaded groove 602. A pressing block 604 is arranged at the bottom end of the T-shaped rotating rod 603. By pushing the moving support platform 6 at the universal wheels 601 to move to the test site position, and then rotating the T-shaped rotating rod 603 to engage with the threaded groove 602, the threaded groove 602 drives the pressing block 604 to move downward to fit with the ground, completing the fixation. This test device has the advantages of low cost, convenient operation, and convenient movement compared with traditional laboratory benches, can effectively reduce the R & D cost, and has a low input cost.

[0019] Working principle: First, connect the external power supply. The operator can push the moving support platform 6 at the universal wheels 601 to move to the test site position. Then rotate the T-shaped rotating rod 603 to engage with the threaded groove 602, and the threaded groove 602 drives the pressing block 604 to move downward to fit with the ground, completing the fixation. Insert the gearbox into the fixing sleeve inside the fixing table 5, and then fix the gearbox in the fixing table 5 with nuts. Install the variable-frequency motor 4 connected with three-phase power supply above the moving support platform 6, and connect it with the variable-frequency motor 4 and the gearbox through a diaphragm coupling 401. Monitor and collect data on the speed, temperature, and pressure of the gearbox through the speed sensor body 201, pressure sensor 301, and temperature sensor 302. Start the variable-frequency motor 4, confirm that the running state of the gearbox is normal, adjust the speed of each node through the speed adjustment button 102 to control the running speed of the gearbox, and at the same time, the operation parameter monitor 101 collects data to form a closed-loop control.

[0020] Finally, it should be noted that the above content is only used to illustrate the technical solution of the present invention, rather than a limitation on the protection scope of the present invention. Simple modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention do not depart from the essence and scope of the technical solution of the present invention.

Claims

1. An aviation piston engine gearbox test device, comprising an operation control system (1), a variable-frequency motor (4), and a mobile support platform (6), characterized in that: A variable-frequency motor (4) is provided at the top of the mobile support platform (6), and a diaphragm coupling (401) is installed at the output end of the variable-frequency motor (4). A fixed platform (5) is installed at the top of the mobile support platform (6), and a gearbox is provided on one side of the fixed platform (5) through a fixing frame. A data acquisition system (3) is provided at the top of the fixed platform (5), and an operation control system (1) is provided at the top of the variable-frequency motor (4) through a bracket.

2. The aero piston engine gearbox test device according to claim 1, characterized in that: The operation control system (1) includes an operation parameter monitoring (101) and a speed regulation button (102). The operation parameter monitoring (101) is provided inside the operation control system (1), and the speed regulation button (102) is provided on the outer wall of the operation control system (1).

3. The aero piston engine gearbox test device according to claim 1, characterized in that: A speed sensor body (201) is provided below the variable-frequency motor (4) through a bracket, and a speed sensor detection system (2) connected to the output end of the speed sensor body (201) is installed on one side of the variable-frequency motor (4).

4. The aero piston engine gearbox test device according to claim 1, characterized in that: A pressure sensor (301) for detecting the oil pressure of the gearbox is provided inside the fixed platform (5), and a temperature sensor (302) for detecting the temperature of the gearbox is provided on one side of the fixed platform (5).

5. The aero piston engine gearbox test device according to claim 1, characterized in that: A plurality of universal wheels (601) are provided at the bottom end of the mobile support platform (6).

6. The test device for an aviation piston engine gearbox according to claim 1, characterized in that: A threaded groove (602) is formed inside the mobile support platform (6), and a T-shaped rotating rod (603) is provided inside the threaded groove (602). A pressing block (604) is provided at the bottom end of the T-shaped rotating rod (603).

7. The test method of an aero piston engine gearbox test device according to claim 1, characterized in that: Step 1: Push the universal wheels (601) to move the mobile support platform (6) to the test site, and rotate the T-shaped rotating rod (603) to drive the pressing block (604) to fit with the ground to complete the fixation. Step 2: Insert the gearbox into the fixing sleeve inside the fixed platform (5), and then fix the gearbox inside the fixed platform (5) with a nut. Step 3: Install the variable-frequency motor (4) connected to the three-phase power supply above the mobile support platform (6), and connect the variable-frequency motor (4) and the gearbox with a diaphragm coupling (401). Step 4: Monitor and collect data on the speed, temperature, and pressure of the gearbox through the speed sensor body (201), the pressure sensor (301), and the temperature sensor (302). Step 5: Start the variable-frequency motor (4), confirm that the operation state of the gearbox is normal, adjust the speed of each node through the speed regulation button (102) to control the operating speed of the gearbox, and at the same time, the operation parameter monitoring (101) collects data to form a closed-loop control.

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