A reliability test device and test method for compressor guide vane adjustment mechanism

Abstract

The present invention discloses a compressor guide vane adjusting mechanism reliability test device and test method in the technical field of compressor guide vane adjusting mechanism. The present invention simulates the installation of real adjustable guide vanes on a compressor casing by simulating guide vanes, and applies torque load to the simulated guides through a torque output mechanism and a transmission mechanism, so as to simulate the aerodynamic torque load that the real adjustable guide vanes are subjected to during use. Finally, the temperature of the compressor casing is adjusted through a heating device to simulate the temperature of the compressor when it is working. The working environment of the whole machine can be simulated at low cost before the guide vane adjusting mechanism is installed, and the reliability of each component of the guide vane adjusting mechanism during long-term operation can be tested and verified, and it can be judged whether the adjustment accuracy of the guide vane adjusting mechanism under different flight conditions meets the design requirements. At the same time, the service life of easily-worn parts such as bushings can be tested and verified, and the replacement cycle can be clarified to ensure the safe operation of the engine.

Description

Technical Field

[0001] The invention relates to the technical field of compressor guide vane regulating mechanisms, and in particular to a compressor guide vane regulating mechanism reliability test device and test method. Background Art

[0002] During the operation of the engine, in order to keep the compressor working stably and efficiently under various working conditions, the stator blades are usually required to be at different working angles. Currently, a guide vane adjustment mechanism is usually used to adjust the guide vane angle of the stator blades.

[0003] There are many moving pairs in the guide vane adjustment mechanism. Wear will occur during long-term operation. When it reaches a certain level, the guide vane adjustment accuracy will not meet the requirements. In particular, the bushing between the guide vane and the casing is very easy to wear under the action of high temperature and aerodynamic force during long-term operation. Excessive wear and continued overtime use may cause the guide vane adjustment mechanism to become stuck, bringing catastrophic consequences to the engine. In actual working process, the guide vane is subjected to different aerodynamic torques under different working conditions. At the same time, the temperature change of the casing will also cause the assembly gap to change, which will affect the rotational friction between the guide vane and the casing. The wear of the rotating pair of the guide vane adjustment mechanism and the excessive force deformation of the entire guide vane adjustment mechanism will cause the guide vane adjustment accuracy to fail to meet the design requirements.

[0004] However, it is difficult to ensure these through the design manual in the preliminary design. It is usually not discovered until the guide vane adjustment mechanism is formally installed and tested that the guide vane adjustment accuracy is difficult to meet the design requirements. Adjusting the design of the guide vane adjustment mechanism at this time will often interfere with the development progress of the entire engine. In addition, there are wearable and vulnerable parts in the guide vane adjustment mechanism. Using the whole machine to conduct a basic test on its service life takes a long time and takes up resources. It is urgent to verify the reliability of the guide vane adjustment mechanism after the design of the guide vane adjustment mechanism is completed and before formal installation, and to verify the factors that cannot be controlled in the design. The whole machine can be officially used only after the design requirements are met.

[0005] Based on this, the present invention designs a compressor guide vane adjustment mechanism reliability test device and test method to solve the above problems. Summary of the invention

[0006] To achieve the above object, the present invention provides the following technical solution: a compressor guide vane adjustment mechanism reliability test device, comprising:

[0007] The torque loading device is arranged at the front end or / and the rear end of the compressor casing, and is used to test the guide vane adjustment mechanism on the compressor casing, including a torque output mechanism for outputting torque, a simulated guide vane installed on the compressor casing, and a transmission mechanism for transmitting torque;

[0008] The simulated guide vane has a mounting end having the same structure as the adjustable guide vane journal and a connecting end for bearing torque, and the simulated guide vane is mounted on the compressor casing through the mounting end and connected to the guide vane adjustment mechanism;

[0009] The transmission mechanism is used to transmit the torque output by the torque output mechanism to the connection end of the simulated guide vane on the compressor casing;

[0010] An angular displacement measuring device, used to monitor the angle of the simulated guide vane in real time during the test;

[0011] Force measuring device, used to measure the operating force of the guide vane adjustment mechanism;

[0012] The heating device is used to adjust the temperature of the compressor casing and guide vane adjustment mechanism during the test to simulate the compressor operating temperature.

[0013] As a further solution of the present invention, the torque output mechanism includes a torque motor, and the output shaft of the torque motor is transmitted to the connecting end of the simulated guide vane through a transmission mechanism to apply torque to the simulated guide vane.

[0014] As a further solution of the present invention, the transmission mechanism includes a synchronous belt and two synchronous wheels, the two synchronous wheels are respectively fixed to the torque output shaft of the torque output mechanism and the connecting end of the simulated guide vane, and the synchronous wheel on the torque output mechanism is transmitted to the synchronous wheel on the simulated guide vane through the synchronous belt.

[0015] As a further solution of the present invention, the angular displacement measuring device includes an angular displacement sensor, which is arranged on the compressor casing and remains relatively stationary with the compressor casing. The measuring rotor of the angular displacement sensor is fixedly connected to the simulated guide vane and is coaxially arranged with the mounting end of the simulated guide vane.

[0016] As a further solution of the present invention, the heating device includes a flexible heating patch and a temperature sensor. The flexible heating patch is attached to the outer surface and / or inner cavity of the compressor casing to adjust the temperature of the compressor casing and the guide vane adjustment mechanism. The temperature sensor is disposed on the compressor casing to monitor the temperature of the compressor casing in real time.

[0017] As a further solution of the present invention, the force measuring device includes a force sensor, and the force sensor is installed at the connection between the actuator and the linkage ring in the guide vane adjustment mechanism.

[0018] As a further solution of the present invention, the torque loading device further includes a mounting mechanism for mounting the torque motor, and the mounting mechanism is used to mount the torque motor to the front end or the rear end of the compressor.

[0019] As a further solution of the present invention, the mounting mechanism includes a mounting casing, one end of which is provided with a flange edge for fixed connection with a compressor casing, and the torque motor is fixedly arranged on the outer surface of the mounting casing.

[0020] As a further solution of the present invention, a slotted hole is provided on the mounting casing, and a mounting hole is provided on the motor seat of the torque motor. The torque motor is fixed to the mounting casing by a bolt passing through the mounting hole and the slotted hole and then threadedly engaging a nut. The length of the slotted hole in the axial direction of the mounting casing is greater than the diameter of the mounting hole, so that the bolt can slide axially along the mounting casing in the slotted hole after passing through the slotted hole, thereby realizing the adjustment of the axial mounting position of the torque motor on the mounting casing.

[0021] A compressor guide vane adjustment mechanism reliability test method, a compressor guide vane adjustment mechanism reliability test device tests the compressor guide vane adjustment mechanism, comprising the following steps:

[0022] S1, installing the simulated guide vane on the compressor casing according to the position of the guide vane adjustment mechanism to be tested, and connecting the installation end of the simulated guide vane to the guide vane adjustment mechanism to be tested, so that the guide vane adjustment mechanism can drive the simulated guide vane to rotate;

[0023] S2, installing the torque output mechanism to the front end or / and rear end of the compressor casing according to the position of the guide vane adjustment mechanism to be tested, and connecting the torque output mechanism and the simulated guide vane through a transmission mechanism;

[0024] S3, installing the angular displacement measuring device and the heating device on the compressor casing, and installing the force measuring device on the guide vane adjusting mechanism;

[0025] S4, obtaining the flight condition of the engine equipped with the compressor, combining different flight conditions, and obtaining the working load of the guide vane adjustment mechanism under different flight conditions to form a cycle spectrum;

[0026] S5, the guide vane adjustment mechanism is tested by using a cyclic spectrum. During the test, the torque load on the simulated guide vane is adjusted by the torque output mechanism, the temperature of the compressor casing and the guide vane adjustment mechanism is controlled by the heating device, and the angle of the simulated guide vane is adjusted by the guide vane adjustment mechanism, so as to simulate the working load of the guide vane adjustment mechanism under different working conditions;

[0027] S6, monitoring the simulated guide vane angle through an angular displacement measuring device, determining the adjustment accuracy of the guide vane adjustment mechanism on the simulated guide vane under different working conditions and whether the guide vane adjustment mechanism fails, measuring the operating force of the guide vane adjustment mechanism when adjusting the simulated guide vane angle through a force measuring device, and determining whether the guide vane adjustment mechanism is deformed or worn and stuck;

[0028] S7, when the guide vane adjustment mechanism fails or gets stuck, the test is stopped and the test results are output.

[0029] The present invention has the following beneficial effects:

[0030] The present invention simulates the installation of real adjustable guide vanes on the compressor casing through simulated guide vanes, and applies torque load to the simulated guide through the torque output mechanism and the transmission mechanism, so as to simulate the aerodynamic torque load that the real adjustable guide vanes are subjected to during use. Finally, the temperature of the compressor casing is adjusted by the heating device to simulate the temperature of the compressor when it is working, thereby realizing the simulation of the real use environment of the guide vane adjustment mechanism. At the same time, during the test process, the temperature of the compressor casing and the torque load on the simulated blades can be adjusted in real time to simulate different flight conditions. The working environment of the entire machine can be simulated at low cost before the guide vane adjustment mechanism is installed, and the reliability of each component of the guide vane adjustment mechanism in long-term operation can be tested and verified to determine whether the adjustment accuracy of the guide vane adjustment mechanism under different flight conditions meets the design requirements. At the same time, the service life of easily-worn parts such as bushings can be tested and verified, so as to clarify the replacement cycle and ensure the safe operation of the engine.

[0031] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0033] Figure 1 This is a schematic diagram of the structure after the present invention is assembled to the compressor casing;

[0034] Figure 2 It is a schematic diagram of the internal structure of the compressor casing after the present invention is assembled to the compressor casing;

[0035] Figure 3 This is a schematic diagram of the present invention after being assembled to a compressor casing along the axial direction of the compressor casing;

[0036] Figure 4 It is a schematic diagram of the local structure of the casing installed in the present invention.

[0037] Legend:

[0038] 1. Torque output mechanism; 2. Simulated guide vane; 3. Transmission mechanism; 4. Angular displacement measuring device; 5. Heating device; 61. Mounting casing; 62. Flange edge; 63. Slotted hole; 64. Mounting seat; 65. Screw rod; 66. Connecting seat; 71. Actuator; 72. Linkage ring; 8. Force sensor. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0040] See also Figure 1-4 The present invention provides a technical solution: a compressor guide vane adjustment mechanism reliability test device, comprising:

[0041] The torque loading device is arranged at the front end or / and the rear end of the compressor casing, and is used to test the guide vane adjustment mechanism on the compressor casing, including a torque output mechanism 1 for outputting torque, a simulated guide vane 2 installed on the compressor casing, and a transmission mechanism 3 for transmitting torque. The compressor casing may have a plurality of guide vane adjustment mechanisms, which are used to respectively adjust the adjustable guide vanes or adjustable stationary vanes at different positions in the axial direction of the compressor casing. According to the different positions of the adjustable guide vanes or adjustable stationary vanes adjusted by the guide vane adjustment mechanism to be tested, the torque loading device is installed at the front end or the rear end of the compressor casing, or the torque loading device is installed at both the front end and the rear end of the compressor casing, and the guide vane adjustment mechanisms at different positions are tested at the same time;

[0042] The simulated guide vane 2 has a mounting end having the same structure as the adjustable guide vane journal and a connecting end for bearing torque, and can be mounted on the compressor casing through the mounting end and connected to the guide vane adjustment mechanism;

[0043] The transmission mechanism 3 is used to transmit the torque output by the torque output mechanism 1 to the connection end of the simulated guide vane 2 installed on the compressor casing;

[0044] During the test, the simulated guide vane 2 is installed on the compressor casing according to the installation position of the adjustable guide vane adjusted by the guide vane adjustment mechanism to be tested on the compressor casing. The simulated guide vane 2 has a mounting end with the same structure as the adjustable guide vane neck shaft, that is, the simulated guide vane 2 can be installed on the compressor casing and connected to the guide vane adjustment mechanism like the real adjustable guide vane. The guide vane adjustment mechanism can also drive the simulated guide vane 2 to rotate on the compressor casing. At this time, the torque is applied to the connection end of the simulated guide vane 2 through the torque output mechanism 1, so that the aerodynamic torque load applied to the adjustable guide vane by the gas flow during the operation of the engine can be simulated;

[0045] The angular displacement measuring device 4 is used to monitor the angle of the simulated guide vane 2 in real time during the test, and to determine whether the actual angle of the simulated guide vane 2 is consistent with the control input angle, so as to determine whether the adjustment accuracy of the guide vane adjustment mechanism on the simulated guide vane 2 during the test meets the design requirements and the failure time of the guide vane adjustment mechanism during the test, and to determine whether the test device needs to be shut down according to the test content to prevent further damage to the guide vane adjustment mechanism;

[0046] The force measuring device is used to measure the actuating force of the guide vane adjusting mechanism. During the test, the guide vane adjusting mechanism needs to adjust the angle of the simulated guide vane 2 to simulate the actual flight condition. If the components of the guide vane adjusting mechanism are deformed or worn, causing the simulated guide vane 2 to get stuck, the guide vane adjusting mechanism will be hindered when driving the simulated guide vane 2 to rotate. The force measuring device can monitor the actuating force of the guide vane adjusting mechanism in real time. When the actuating force of the guide vane adjusting mechanism reaches a certain value, it is considered that the guide vane adjusting mechanism has failed, and the stop mechanism is immediately triggered to avoid harmful damage and ensure the safety of the test;

[0047] The heating device 5 is used to adjust the temperature of the compressor casing and the guide vane adjustment mechanism during the test to simulate the working temperature of the compressor. During the operation of the engine, the overall temperature of the engine will increase, causing the temperature of the compressor casing and the guide vane adjustment mechanism to increase. In order to ensure the accuracy of the test, the temperature of the compressor casing and the guide vane adjustment mechanism is adjusted by the heating device 5 to simulate the temperature in the actual use environment, ensuring that the performance of the parts in the compressor casing and the guide vane adjustment mechanism during the test is similar to that in the actual use environment, avoiding large errors;

[0048] The device simulates the installation of real adjustable guide vanes by simulating guide vanes 2 installed on the compressor casing and connected to the guide vane adjustment mechanism, and applies torque load to the simulated guide vanes 2 through the torque loading device to simulate the aerodynamic torque of the adjustable guide vanes under the actual use of the compressor. The temperature of the compressor casing and the guide vane adjustment mechanism is adjusted through the heating device 5 to simulate the temperature under the actual use environment, so as to ensure that the performance of the compressor casing and the guide vane adjustment mechanism and other accessories during the test are similar to those under the actual use environment, and simulate the actual environment when the compressor is used, so as to realize the reliability test of the guide vane adjustment mechanism, and can simulate the working environment of the whole machine at a low cost, test and verify the reliability of each component of the guide vane adjustment mechanism in long-term work, and judge whether the adjustment accuracy of the guide vane adjustment mechanism for the simulated guide vanes under different flight conditions meets the design requirements. At the same time, the service life of easily-worn parts such as bushings can be tested and verified, and the replacement cycle can be clarified to ensure the safe operation of the engine.

[0049] Preferably, when the reliability test is performed by the compressor guide vane adjustment mechanism reliability test device, multiple groups of actual engine operating conditions are usually selected to form a cycle spectrum. Different operating conditions correspond to different working loads (aerodynamic load, temperature load) of the guide vane adjustment mechanism. Each cycle spectrum corresponds to a cycle load spectrum. After a short adjustment after each cycle, the cycle loading is entered to simulate the actual situation of long-term use.

[0050] By combining different actual operating conditions of the engine to form a cycle spectrum, different states of the actual aircraft flight process can be simulated. Under different flight conditions, the engine has different powers, and the guide vane adjustment mechanism also has different working loads. The aerodynamic load can be simulated by a torque loading device, the temperature load can be adjusted and simulated by a heating device 5, and the actuating load can be adjusted by the guide vane adjustment mechanism itself. By simulating the working load of the guide vane 2 adjustment mechanism under different flight conditions of the engine, the reliability test of the guide vane adjustment mechanism can be closer to the actual operating conditions, making the final test results more realistic and accurate.

[0051] Figure 1 An example of a torque output mechanism 1 is shown. In this example, the torque output mechanism 1 includes a torque motor. The output shaft of the torque motor is transmitted to the connection end of the simulated guide vane 2 through the transmission mechanism 3, so that the torque output by the torque motor can be transmitted to the connection end of the simulated guide vane 2, and will be transmitted to the guide vane adjustment mechanism through the simulated guide vane 2 to simulate the aerodynamic torque load on the adjustable guide vane;

[0052] When a torque motor is used to apply a torque load to the simulated guide vane 2, the torque size can be accurately controlled. At the same time, when the torque load is applied to the simulated guide vane 2 by the torque motor, the output shaft of the torque motor can remain relatively stationary with the torque motor, and will not cause damage to the torque motor. It is more convenient and simple to apply a torque load to the simulated guide vane 2 by the torque motor, and the size of the torque load applied to the simulated guide vane 2 can be accurately controlled, thereby improving the accuracy of the test results.

[0053] Figure 2 An example of a transmission mechanism 3 is shown. In this example, the transmission mechanism 3 includes a synchronous belt and two synchronous wheels. The two synchronous wheels are respectively fixed to the torque output shaft of the torque output mechanism 1 and the connection end of the simulated guide vane 2. The synchronous wheel on the torque output mechanism 1 is driven by the synchronous wheel on the simulated guide vane 2 through the synchronous belt. The torque output by the torque motor is transmitted to the simulated guide vane 2 through the cooperation of the synchronous belt and the synchronous wheel.

[0054] In this example, the transmission mechanism 3 includes a synchronous wheel and a synchronous belt. The torque output by the torque motor is transmitted to the simulated blades through the cooperation of the synchronous wheel and the synchronous belt. The synchronous belt and the synchronous wheel are meshed with each other, which can prevent the synchronous belt from slipping during the test and ensure the stability of the transmission mechanism 3 during the test. At the same time, the synchronous belt is sleeved on the surface of the synchronous wheel. The synchronous wheel is circular, which can transmit torque more accurately and control the torque load on the simulated guide vane 2 more accurately, thereby ensuring the accuracy of the test results.

[0055] Optionally, the transmission mechanism 3 may also be equipped with gears, and gears are fixedly arranged on the output shaft of the torque motor and the connecting end of the simulated guide vane 2, and the gears on the output shaft of the torque motor and the gears on the connecting end of the simulated guide vane 2 are meshed with each other, so as to transmit the torque output by the torque motor to the simulated guide vane 2;

[0056] Furthermore, when the torque output mechanism 1 adopts a torque motor, and the transmission mechanism 3 adopts a synchronous belt and a synchronous wheel or the transmission mechanism 3 adopts gears, the number of torque motors is the same as the number of simulated guide vanes 2, and each torque motor is used to apply a torque load to a simulated guide vane 2 separately.

[0057] Figure 2 An example of an angular displacement measuring device 4 is shown. In this example, the angular displacement measuring device 4 includes an angular displacement sensor, which is mounted on the compressor casing and remains relatively stationary with the compressor casing. At the same time, the measuring rotor of the angular displacement sensor is fixedly connected to the simulated guide vane 2 and is coaxially arranged with the mounting end of the simulated guide vane 2. In this way, when the simulated guide vane 2 rotates, the measuring rotor of the angular displacement sensor is driven to rotate, thereby measuring the movement of the simulated guide vane 2, and the angle of the simulated guide vane 2 can be monitored in real time during the test.

[0058] During the test, the torque output mechanism 1 will continuously load the torque load to the simulated guide vane 2, and the torque load will be transmitted to the guide vane adjustment mechanism through the simulated guide vane 2. During the test, if the components of the guide vane adjustment mechanism are deformed or wear out, the simulated guide vane 2 may have various situations such as angle non-following or stuck. When the simulated guide vane 2 has an angle non-following, the actual angle of the simulated guide vane 2 does not follow the control input angle, and the angular displacement sensor connected to the simulated guide vane 2 will capture the difference between the actual angle of the simulated guide vane 2 and the control input angle. At this time, the test can be stopped immediately or continued, and feedback can be given immediately when the simulated guide vane 2 angle does not follow to avoid harmful damage and ensure the safety of the test.

[0059] The angular displacement sensor can be installed in the inner cavity or outer surface of the compressor casing, fixedly connected to the compressor casing or kept relatively still with the compressor casing through an external mounting mechanism, such as Figure 2 As shown, preferably, the angular displacement sensors are fixedly arranged on the outer surface of the compressor casing, the number of the angular displacement sensors is the same as the number of the simulated guide vanes 2 during the test, and each simulated guide vane 2 is connected to an angular displacement sensor.

[0060] The guide vane adjustment mechanism is composed of an actuator 71, a linkage ring 72 and a rocker arm. The linkage ring 72 is hinged with a plurality of rockers. One end of the rocker arm away from the linkage ring 72 is sleeved on the mounting end of the simulated guide vane 2. The actuator 71 drives the connecting ring to rotate, and the simulated guide vane 2 can be driven to rotate through the rocker arm. A force measuring device can be installed at the connection between the actuator 71 and the linkage ring 72 to measure the actuating force applied by the actuator 71 to the linkage ring 72. The force measuring device can use a force sensor 8.

[0061] like Figure 3 As shown, the output shaft of the actuator 71 is connected to a driving connecting rod through a pin, and the end of the driving connecting rod away from the output shaft of the actuator 71 is connected to the operating rod through a pin, and the end of the operating rod away from the driving connecting rod is connected to the linkage ring 72. The actuator 71 drives the linkage ring 72 to rotate through the driving connecting rod and the operating rod. The force sensor 8 is installed in the middle of the driving connecting rod to monitor the actuating force when the actuator 71 drives the linkage ring 72 to move.

[0062] Figure 2 An example of a heating device 5 is shown. In this example, the heating device 5 includes a flexible heating sticker and a temperature sensor. The flexible heating sticker is attached to the surface of the compressor casing. The temperature of the compressor casing is adjusted by the flexible heating sticker. Meanwhile, the temperature of the compressor casing is monitored in real time by the temperature sensor, so that the temperature of the compressor casing can be controlled within a certain range during the test.

[0063] When the heating device 5 adopts a flexible heating sticker, the flexible heating sticker can be attached to the surface of the compressor casing and can be wrapped around the compressor casing to evenly control the temperature of the compressor casing and maintain the uniformity of the temperature of the compressor casing. At the same time, the installation is simpler, the space is not occupied, and the use is more convenient.

[0064] When installing the flexible heating sticker, the flexible heating sticker can be attached to the outer surface and / or the inner cavity of the compressor casing, such as Figure 2 As shown, in this example, the flexible heating sticker is attached to the outer surface of the compressor casing. When the flexible heating sticker is attached to the outer surface of the compressor casing, there is no need to adhere the flexible heating sticker to the compressor casing. The flexible heating sticker can be wrapped around the surface of the compressor casing, which makes installation and removal easier.

[0065] Specifically, the torque loading device further includes a mounting mechanism for mounting the torque motor, and the mounting mechanism is used to mount the torque motor to the front end or rear end of the compressor;

[0066] The mounting mechanism belongs to conventional technical means in the field, and a mounting bracket can be placed on the bottom surface, and the torque output mechanism 1 can be fixed on the top of the mounting bracket;

[0067] Preferably, Figure 2As shown, the mounting mechanism adopts a mounting casing 61, and one end of the mounting casing 61 is provided with a flange edge 62, so that the mounting casing 61 can be fixedly connected to the compressor casing through the flange edge 62, so that the mounting casing 61 is fixedly mounted at the front end or rear end of the compressor casing, and the mounting casing 61 is fixed by using the mounting flanges at the front end and rear end of the compressor casing, and the structure is simpler;

[0068] The shape of the mounting case 61 is not limited and can be a polygonal tube or a cylindrical tube;

[0069] like Figure 2 As shown, a slotted hole 63 is provided on the mounting casing 61, and a mounting hole is provided on the motor seat of the torque motor. The torque motor is fixed on the mounting casing 61 by passing a bolt through the mounting hole and the slotted hole 63 and then threadedly engaging a nut. The length of the slotted hole 63 in the axial direction of the mounting casing 61 is greater than the diameter of the mounting hole, so that the bolt can slide in the slotted hole 63 along the axial direction of the mounting casing 61 after passing through the slotted hole 63, thereby realizing the adjustment of the axial mounting position of the torque motor on the mounting casing 61.

[0070] The mounting casing 61 is provided with a plurality of groups of slot-shaped holes 63 along the circumferential direction, for mounting a plurality of torque motors on the mounting casing 61 along the circumferential direction;

[0071] When the transmission mechanism 3 adopts a synchronous wheel and a synchronous belt, in order to facilitate the installation and disassembly of the synchronous belt and prevent the synchronous belt from slipping during the experiment, it is necessary to adjust the tension of the synchronous belt. The adjustment of the tension of the synchronous belt can be achieved by adjusting the position of the torque motor in the axial direction of the compressor casing. When installing and disassembling the torque motor, the torque motor is placed close to the simulated guide vane 2 in the axial direction of the compressor casing, thereby loosening the synchronous belt and facilitating the connection or separation of the synchronous belt and the synchronous wheel. When conducting the test, the torque motor is placed away from the simulated guide vane 2 in the axial direction of the compressor casing, thereby tightening the synchronous belt and preventing the synchronous belt from slipping during the test.

[0072] Furthermore, after the torque motor is adjusted to the right position on the mounting casing 61, the nut on the bolt is tightened so that the nut is pressed against the inner surface of the mounting casing 61, thereby fixing the position of the torque motor on the mounting casing 61;

[0073] like Figure 4As shown, in some examples, a mounting seat 64 is fixedly installed at one end of the mounting casing 61 away from the flange edge 62, and a screw rod 65 is passed through the mounting seat 64 along the axial direction of the compressor casing. The screw rod 65 rotates with the mounting seat 64, and a connecting seat 66 is fixedly provided on the motor seat of the torque motor. The connecting seat 66 has a threaded hole on the side facing the screw rod 65, and the screw rod 65 is threadedly engaged in the threaded hole provided in the connecting seat 66. The position of the torque motor on the mounting casing 61 is adjusted by rotating the screw rod 65, thereby adjusting the tension of the synchronous belt. At the same time, during the test, the torque motor moves in the axial direction of the compressor casing, thereby affecting the tension of the synchronous belt, ensuring that the test can be carried out stably.

[0074] Further, in some examples, a heat dissipation mechanism is provided on the mounting casing 61, and the heat dissipation mechanism is used to reduce the temperature of the torque motor;

[0075] During the test, the torque motor needs to maintain torque output for a long time and the output shaft cannot rotate, and the compressor casing needs to reach a high temperature during the test, which will cause the internal heat of the torque motor to be unable to dissipate for a long time, which may cause the torque motor to malfunction and be damaged. In order to ensure the safety of the torque motor during the test, a heat dissipation mechanism is set on the mounting casing 61 to dissipate the heat of the torque motor to ensure the safety of the torque motor;

[0076] The heat dissipation mechanism can adopt air cooling or water cooling, which belongs to conventional technical means in this field, and the heat dissipation mechanism is not limited here.

[0077] A compressor guide vane adjustment mechanism reliability test method is provided, wherein a compressor guide vane adjustment mechanism reliability test device is used to test the compressor guide vane adjustment mechanism, and the method comprises the following steps:

[0078] S1, installing the simulated guide vane 2 on the compressor casing according to the position of the guide vane adjustment mechanism to be tested, and connecting the installation end of the simulated guide vane 2 to the guide vane adjustment mechanism to be tested, so that the guide vane adjustment mechanism can drive the simulated guide vane to rotate;

[0079] S2, installing the torque output mechanism 1 to the front end or / and rear end of the compressor casing according to the position of the guide vane adjustment mechanism to be tested, and connecting the torque output mechanism 1 and the simulated guide vane 2 through the transmission mechanism 3;

[0080] S3, installing the angular displacement measuring device 4 and the heating device 5 on the compressor casing, and installing the force measuring device on the guide vane adjustment mechanism;

[0081] S4, obtaining the flight condition of the engine equipped with the compressor, combining different flight conditions, and obtaining the working load of the guide vane adjustment mechanism under different flight conditions to form a cycle spectrum;

[0082] S5, using a cyclic spectrum to test the guide vane adjustment mechanism. During the test, the torque output mechanism 1 is used to adjust the torque load on the simulated guide vane 2, the temperature of the compressor casing and the guide vane adjustment mechanism is controlled by the heating device 5, and the angle of the simulated guide vane is adjusted by the guide vane adjustment mechanism, so as to simulate the working load of the guide vane adjustment mechanism under different working conditions;

[0083] S6, monitoring the simulated guide vane angle by the angular displacement measuring device 4, determining the adjustment accuracy of the guide vane adjustment mechanism on the simulated guide vane 2 under different working conditions and whether the guide vane adjustment mechanism fails, measuring the actuating force of the guide vane adjustment mechanism when adjusting the simulated guide vane angle by the force measuring device, and determining whether the guide vane adjustment mechanism is deformed or worn and stuck;

[0084] S7, when the guide vane adjustment mechanism fails or gets stuck, the test is stopped and the test results are output.

[0085] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A compressor guide vane adjustment mechanism reliability test device, characterized in that: include: The torque loading device is arranged at the front end or / and the rear end of the compressor casing and is used to test the guide vane adjustment mechanism on the compressor casing, comprising a torque output mechanism (1) for outputting torque, a simulated guide vane (2) installed on the compressor casing, and a transmission mechanism (3) for transmitting torque, wherein the simulated guide vane (2) has a mounting end having the same structure as the adjustable guide vane journal and a connection end for bearing torque, the simulated guide vane (2) is mounted on the compressor casing through the mounting end and connected to the guide vane adjustment mechanism, and the transmission mechanism (3) is used to transmit the torque output by the torque output mechanism (1) to the connection end of the simulated guide vane (2) on the compressor casing; An angular displacement measuring device (4) is used to monitor the angle of the simulated guide vane (2) in real time during the test; Force measuring device, used to measure the operating force of the guide vane adjustment mechanism; The heating device (5) is used to adjust the temperature of the compressor casing and the guide vane adjustment mechanism during the test to simulate the operating temperature of the compressor.

2. A compressor guide vane adjustment mechanism reliability test device according to claim 1, characterized in that: The torque output mechanism (1) comprises a torque motor, the output shaft of the torque motor being transmitted through a transmission mechanism (3) and a connection end of the simulated guide vane (2) to apply torque to the simulated guide vane (2).

3. A compressor guide vane adjustment mechanism reliability test device according to claim 1, characterized in that: The transmission mechanism (3) comprises a synchronous belt and two synchronous wheels, the two synchronous wheels being respectively fixed to the torque output shaft of the torque output mechanism (1) and the connection end of the simulated guide vane (2), and the synchronous wheel on the torque output mechanism (1) is driven by the synchronous wheel on the simulated guide vane (2) via the synchronous belt.

4. A compressor guide vane adjustment mechanism reliability test device according to claim 1, characterized in that: The angular displacement measuring device (4) comprises an angular displacement sensor, which is arranged on the compressor casing and remains relatively stationary with the compressor casing, and a measuring rotor of the angular displacement sensor is fixedly connected to the simulated guide vane (2) and is coaxially arranged with the mounting end of the simulated guide vane (2).

5. The reliability test device for the compressor guide vane adjustment mechanism according to claim 1, characterized in that: The heating device (5) comprises a flexible heating patch and a temperature sensor. The flexible heating patch is arranged on the outer surface and / or the inner cavity of the compressor casing and is used to adjust the temperature of the compressor casing and the guide vane adjustment mechanism. The temperature sensor is arranged on the compressor casing and is used to monitor the temperature of the compressor casing in real time.

6. A compressor guide vane adjustment mechanism reliability test device according to claim 1, characterized in that: The force measuring device comprises a force measuring sensor (8), wherein the force measuring sensor (8) is installed at the connection between the actuator (71) and the linkage ring (72) in the guide vane adjustment mechanism.

7. A compressor guide vane adjustment mechanism reliability test device according to claim 2, characterized in that: The torque loading device further comprises a mounting mechanism for mounting the torque motor, wherein the mounting mechanism is used to mount the torque motor to the front end or the rear end of the compressor.

8. A compressor guide vane adjustment mechanism reliability test device according to claim 7, characterized in that: The mounting mechanism comprises a mounting casing (61), one end of which is provided with a flange edge (62) for fixed connection with a compressor casing, and the torque motor is fixedly arranged on the outer surface of the mounting casing (61).

9. A compressor guide vane adjustment mechanism reliability test device according to claim 8, characterized in that: The mounting casing (61) is provided with a slotted hole (63), and the motor seat of the torque motor is provided with a mounting hole. The torque motor is fixed to the mounting casing (61) by a bolt passing through the mounting hole and the slotted hole (63) and then threadedly engaging with a nut. The length of the slotted hole (63) in the axial direction of the mounting casing (61) is greater than the diameter of the mounting hole, so that the bolt can slide in the slotted hole (63) along the axial direction of the mounting casing (61) after passing through the slotted hole (63), thereby realizing the adjustment of the axial mounting position of the torque motor on the mounting casing (61).

10. A reliability test method for a compressor guide vane adjustment mechanism, characterized in that: The compressor guide vane adjustment mechanism reliability test device according to any one of claims 1 to 9 is used to test the compressor guide vane adjustment mechanism, comprising the following steps: S1, installing the simulated guide vane (2) on the compressor casing according to the position of the guide vane adjustment mechanism to be tested, and connecting the installation end of the simulated guide vane (2) to the guide vane adjustment mechanism to be tested, so that the guide vane adjustment mechanism can drive the simulated guide vane to rotate; S2, installing the torque output mechanism (1) to the front end or / and the rear end of the compressor casing according to the position of the guide vane adjustment mechanism to be tested, and connecting the torque output mechanism (1) and the simulated guide vane (2) via a transmission mechanism (3); S3, installing the angular displacement measuring device (4) and the heating device (5) on the compressor casing, and installing the force measuring device on the guide vane adjustment mechanism; S4, obtaining the flight condition of the engine equipped with the compressor, combining different flight conditions, and obtaining the working load of the guide vane adjustment mechanism under different flight conditions to form a cycle spectrum; S5, a cyclic spectrum is used to test the guide vane adjustment mechanism. During the test, the torque load on the simulated guide vane (2) is adjusted by the torque output mechanism (1), the temperature of the compressor casing and the guide vane adjustment mechanism is controlled by the heating device (5), and the angle of the simulated guide vane (2) is adjusted by the guide vane adjustment mechanism, so as to simulate the working load of the guide vane adjustment mechanism under different working conditions; S6, monitoring the simulated guide vane angle by means of an angular displacement measuring device (4), determining the adjustment accuracy of the simulated guide vane (2) by the guide vane adjustment mechanism under different working conditions and whether the guide vane adjustment mechanism has failed, measuring the operating force of the guide vane adjustment mechanism when adjusting the simulated guide vane (2) angle by means of a force measuring device, and determining whether the guide vane adjustment mechanism has been deformed or worn and stuck; S7, when the guide vane adjustment mechanism fails or gets stuck, the test is stopped and the test results are output.

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