A loading device and method for loading misalignment faults in an elastic support-rotor system.

Abstract

This invention discloses a loading device and method for loading misalignment faults in an elastic support-rotor system, relating to the field of support misalignment loading tests. The loading device includes a test bench, a support assembly, a drive assembly, and a load adjustment mechanism. The support assembly is mounted on the test bench. The adjustment mechanism can be detachably installed at at least two spaced connection positions on the connecting frame to change the direction of the force transmission component and maintain the bearing's force on the rotor, thereby adjusting the direction of the force acting on the misaligned support. This invention can adjust the loading force and direction of the misalignment, and can effectively simulate and test rotor faults under conditions close to actual working conditions, providing a scientific basis and support for the design and performance of rotor systems. Its implementation process is convenient, maintains good misalignment accuracy, and exhibits good test repeatability.

Description

Technical Field

[0001] This invention relates to the field of support misalignment loading tests, specifically to a load-loading device and method for loading misalignment faults in an elastic support-rotor system. Background Technology

[0002] As a core component of aero-engines, the rotor support system's vibration characteristics directly determine whether the aero-engine can operate under harsh environments of high temperature, high pressure, high speed, and high load, playing a crucial role in the overall performance of the aero-engine. In pursuit of higher thrust-to-weight ratios and greater power density, modern aero-engines are becoming increasingly smaller and rotating at higher speeds, resulting in increasingly slender rotor systems, especially low-pressure rotor systems. Slender rotor systems are more susceptible to support misalignment faults, leading to excessive vibration, rotor-stator rubbing, and other serious threats to engine and aircraft safety. The study of the dynamic characteristics of elastic support-rotor systems under support misalignment faults is currently one of the key issues in aero-engine research, and conducting misalignment fault tests on elastic support-rotor systems is an effective technical means to study this problem. Accurately achieving a specified degree of misalignment loading on a test bench is a prerequisite for conducting such tests.

[0003] Currently, different oil film eccentricity loading on the testing apparatus can be achieved by pre-machining elastic supports with varying misalignments. This requires machining a large number of parts to achieve different misalignments, and each set of tests requires replacing corresponding parts, resulting in multiple assembly and disassembly processes during the testing, leading to low efficiency. In actual assembly, the misalignment between different supports is manually adjusted based on the assembly personnel's experience. However, due to limitations in machining accuracy and assembly uncertainties, the actual misalignment accuracy is low, and misalignment faults can only occur along the direction parallel to the test platform plane, resulting in very poor test repeatability. Summary of the Invention

[0004] To address the technical problems mentioned in the background section, this invention provides a fault loading device for elastic support-rotor system support misalignment, comprising:

[0005] Test bench;

[0006] At least two support components are mounted on the test bench, and the support components are configured as elastic support structures.

[0007] A drive assembly includes a drive component and a rotor component. The drive component is mounted on the support assembly, and the rotor component is throttle-connected to the drive end of the drive component. The rotor component and the support assembly are rotatably connected.

[0008] The system includes at least one load adjustment mechanism, comprising a connecting frame, an adjustment structure, a force transmission component slidably abutting on the adjustment structure, a retaining bearing sleeved and installed on the outer periphery of the rotor component, and a tray component. One end of the force transmission component is fixedly connected to the retaining bearing, and the other end is fixedly connected to the tray component. The connecting frame is spaced around the outside of the rotor component, and the adjustment structure and the rotor component are spaced apart. The tray component is adapted to hold a load so that it is applied to the rotor component through the force transmission component and the retaining bearing. The adjustment structure can be detachably mounted at at least two spaced connection positions on the connecting frame to change the direction of the force applied to the rotor component by the force transmission component and the retaining bearing.

[0009] Optionally, the connecting frame includes a positioning groove and a hollow space, at least part of the adjusting structure is detachably connected in the positioning groove, and the rotor component passes through the hollow space.

[0010] Optionally, the adjustment structure includes a positioning rod and a locking member. The positioning rod is fixedly connected to the positioning groove by the locking member, and the locking member and the connecting frame are mutually abutting and limiting.

[0011] Optionally, the positioning groove is configured as a stepped annular groove, the positioning rod includes a limiting head and a connecting section, the limiting head is disposed in the positioning groove, the locking member is sleeved on the positioning rod, and the connecting section and the locking member are threadedly connected so that when the limiting head and the locking member move close to each other, the limiting head and the locking member can clamp and fix the connecting frame.

[0012] Optionally, the support assembly includes a support and a support bearing, the support and the support bearing being correspondingly arranged, the support being detachably connected to the test bench, the support bearing being installed inside the support, and the support bearing being rotatably connected to the rotor.

[0013] Optionally, the force transmission component is configured as a force transmission rope, and the load adjustment mechanism further includes a fixed pulley and a pulley bracket. The fixed pulley and the pulley bracket are rotatably connected, and the pulley bracket is adapted to connect with an external positioning frame. The middle section of the force transmission component is slidably connected with the fixed pulley.

[0014] Optionally, the test bench is provided with a connection channel;

[0015] The support assembly is fixedly connected to the connection channel by a locking member; and / or the connecting frame is fixedly connected to the connection channel by a locking member.

[0016] Optionally, the test bench is provided with guide grooves;

[0017] The guide groove and the support assembly are slidably configured; and / or the guide groove and the connecting frame are slidably configured.

[0018] Optionally, the drive assembly further includes a coupling, one side of which is fixedly connected to the drive side of the drive member, and the other side of which is fixedly connected to the rotor member.

[0019] The present invention also provides a loading method for the above-described elastic support-rotor system support misalignment fault loading device, comprising the following steps:

[0020] The support assembly is placed on the test bench, the rotor of the drive assembly and the support assembly are rotated and assembled, and the rotor is connected to the drive end of the drive assembly.

[0021] The retaining bearing is connected at the preset loading position of the rotor component, and the connecting frame is assembled on the test bench at a position close to the retaining bearing.

[0022] Adjust the connection position of the variable adjustment structure on the connecting frame according to the direction of the loading on the rotor components;

[0023] Connect one end of the force transmission component to the retaining bearing and the other end to the pallet component;

[0024] Loads of different weights are loaded into the pallet to adjust the loading force on the rotor. When it is necessary to adjust the direction of the loading force on the rotor, the connection position of the adjustment structure on the connecting frame is adjusted.

[0025] The technical solution provided by this invention has the following advantages:

[0026] The present invention provides an elastic support-rotor system support misalignment fault loading device, comprising a test bench, a support assembly, a drive assembly, and a load adjustment mechanism. The support assembly is mounted on the test bench. The drive assembly includes a drive component and a rotor component. The drive component is mounted on the support assembly. The rotor component is drively connected to the drive end of the drive component. The rotor component and the support assembly are rotatably connected. The load adjustment mechanism includes a connecting frame, an adjustment structure, a force transmission component that slides against the adjustment structure, a retaining bearing sleeved on the outer periphery of the rotor component, and a tray component.

[0027] This loading device features a force transmission component with one end fixedly connected to a retaining bearing and the other end fixedly connected to a pallet component. A connecting frame with spacers is positioned around the outside of the rotor component. The adjusting structure and rotor component are spaced apart. The pallet component is suitable for placing loads, which are then applied to the rotor component via the force transmission component and retaining bearing. The adjusting structure can be detachably mounted at at least two spaced connection positions on the connecting frame to change the direction of the force exerted by the force transmission component and retaining bearing on the rotor component, thereby adjusting the direction of the force applied to the misaligned support. This invention can adjust the loading force and direction of the misalignment, and can effectively simulate and test the misalignment faults of the elastic support-rotor system under conditions close to actual working conditions. It provides a scientific basis and support for the design and performance of the rotor system. The implementation process is convenient, maintains good misalignment accuracy, and exhibits good test repeatability. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the loading device provided by the present invention;

[0030] Figure 2 This is a partial schematic diagram of the loading device provided by the present invention;

[0031] Figure 3 This is a schematic diagram of the load adjustment mechanism in the loading device provided by the present invention;

[0032] Figure 4 This is a partial schematic diagram of the adjustment structure in the loading device provided by the present invention;

[0033] Figure 5 This is a schematic diagram of the connecting frame in the loading device provided by the present invention;

[0034] Figure 6 This is a schematic diagram of the structure of the test bench in the loading device provided by the present invention;

[0035] Figure 7 A schematic diagram of another embodiment of the loading device provided by the present invention;

[0036] Explanation of reference numerals in the attached figures:

[0037] 1-Test bench; 11-Connecting channel; 12-Guide groove;

[0038] 21-Support; 22-Support bearing;

[0039] 31-Drive component; 32-Rotor component; 33-Coupling;

[0040] 41-Connecting frame; 411-Positioning groove; 412-Hollow position; 42-Adjusting structure; 421-Positioning rod; 4211-Limiting head; 4212-Connecting section; 422-Locking component; 43-Force transmission component; 44-Retaining bearing; 45-Plate component; 46-Fixed pulley; 47-Pulley bracket. Detailed Implementation

[0041] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] Example

[0046] This invention addresses the shortcomings of current practical implementations of rotor system support misalignment fault testing: different degrees of misalignment require the machining of different parts, making experimental operations complex and consuming significant time and costs. Experimental accuracy is affected by the experience of assembly personnel and machining precision, resulting in low misalignment accuracy. Furthermore, misalignment faults can only be detected along directions parallel to the test bench plane, leading to poor test repeatability.

[0047] The present invention aims to provide a loading device that can achieve different degrees of misalignment without the need for additional elastic support processing or multiple assembly and disassembly, and its test operation is convenient and has good repeatability.

[0048] This embodiment provides a fault loading device for misalignment of an elastic support-rotor system. (See [link]). Figures 1 to 3 The loading device includes a test bench 1, a support assembly, a drive assembly, and a load adjustment mechanism. The support assembly is installed on the test bench 1 and is configured as an elastic support structure. The drive assembly includes a drive component 31 and a rotor component 32. The drive component 31 is installed on the support assembly, and the rotor component 32 is throttle-connected to the drive end of the drive component 31. The rotor component 32 and the support assembly are rotatably connected.

[0049] See Figure 1 The support assembly has two or more components. In some embodiments, the support assembly includes a support 21 and a support bearing 22, which are correspondingly arranged. The support 21 is detachably connected to the test bench 1, and the support bearing 22 is installed inside the support 21. The support bearing 22 is rotatably connected to the rotor component 32. The support bearing 22 is configured as an elastic bearing, such as an elastic rolling bearing.

[0050] In this embodiment, see Figures 1 to 3 The load adjustment mechanism includes a connecting frame 41, an adjustment structure 42, a force transmission component 43 slidably abutting on the adjustment structure 42, a retaining bearing 44 sleeved and installed on the outer periphery of the rotor component 32, and a tray component 45. One end of the force transmission component 43 is fixedly connected to the retaining bearing 44, and the other end is fixedly connected to the tray component 45. The connecting frame 41 is spaced around the outside of the rotor component 32, and the adjustment structure 42 and the rotor component 32 are spaced apart. The loading device provided in this embodiment can be configured for testing misalignment faults in a single support.

[0051] The tray 45 is suitable for placing a load, which is then applied to the rotor 32 via the force transmission member 43 and the retaining bearing 44. The adjusting structure 42 can be detachably installed at at least two spaced connection positions on the connecting frame 41 to change the direction of the force exerted on the rotor 32 by the force transmission member 43 and the retaining bearing 44. The adjusting structure 42 can serve as a supporting foundation for the force transmission member 43. When one end of the force transmission member 43 is loaded and subjected to force, the direction of the load force, when accumulated from the direction of the adjusting structure 42's supporting action on the force transmission member 43, is the resultant force direction of the actual loading force exerted on the rotor 32 via the force transmission member 43.

[0052] In some implementations, see Figure 3The connecting frame 41 includes a positioning groove 411 and a hollow space 412. At least part of the adjusting structure 42 is detachably connected to the positioning groove 411, and the rotor component 32 passes through the hollow space 412. The connecting frame 41 has an annular structure, and the positioning groove 411 and the hollow space 412 are constructed on the annular structure.

[0053] As an exemplary implementation, see [link to relevant documentation]. Figure 4 The adjustment structure 42 includes a positioning rod 421 and a locking member 422. The positioning rod 421 is fixedly connected to the positioning groove 411 through the locking member 422. The locking member 422 and the connecting frame 41 are mutually abutted and limited.

[0054] As a further implementation method, see Figure 5 The positioning groove 411 is configured as a stepped annular groove. The positioning rod 421 includes a limiting head 4211 and a connecting section 4212. The limiting head 4211 is disposed within the positioning groove 411. The locking member 422 is sleeved on the positioning rod 421. The connecting section 4212 and the locking member 422 are threaded together so that when the limiting head 4211 and the locking member 422 move closer together, they can clamp and fix the connecting frame 41. By configuring the positioning groove 411 as a stepped annular groove, the positioning rod 421 has multiple connection positions along the circumferential direction within the positioning groove 411.

[0055] When adjusting the load adjustment mechanism, first loosen the locking piece 422, then rotate the positioning rod 421 to the desired connection position, and then tighten the locking piece 422 to fix it, thus achieving the adjustment of the positioning rod 421; when it is necessary to adjust the loading force, it can be achieved by adding or removing the load in the tray piece 45.

[0056] As another implementation, the adjustment structure 42 can be installed on the positioning groove 411 by snap-fit, so as to achieve the same purpose of adjusting the connection position of the adjustment structure 42 to change the loading direction of the rotor component 32. For example, multiple snap-fit ​​positions are provided on the connecting frame 41, and the snap-fit ​​positions are arranged on the positioning groove 411. The positioning rod 421 is fixed to the snap-fit ​​position to establish a support foundation for the force transmission component 43.

[0057] In some embodiments, the positioning rod 421 is provided with a sliding position, and the force transmission member 43 is abutted at the sliding position. The sliding position can be specifically configured as a groove structure with a smooth curved transition.

[0058] As an exemplary implementation, see [link to relevant documentation]. Figure 3The force transmission component 43 is configured as a force transmission rope. The load adjustment mechanism also includes a fixed pulley 46 and a pulley bracket 47. The fixed pulley 46 and the pulley bracket 47 are rotatably connected. The pulley bracket 47 is adapted to connect with an external positioning frame. The middle section of the force transmission component 43 is slidably connected with the fixed pulley 46. With this configuration, the loading direction on the rotor component 32 can be flexibly adjusted by cooperating with the force transmission rope and the fixed pulley 46. By loading within the pallet component 45, the force transmission rope is kept taut under the load drag. It should be noted that in the specific implementation process, the positioning rod 421 needs to be positioned radially above the retaining bearing 44 to ensure that the adjustment of the positioning rod 421 achieves the purpose of changing the loading direction on the rotor component 32. Among them, one end of the force transmission component 43 is loaded with force, and the direction of the loaded force is the resultant direction of the supporting force of the force transmission component 43 by the adjustment structure 42 and the supporting force of the fixed pulley 46 on the force transmission component 43. This is the actual loading force direction of the rotor component 32 through the force transmission component 43.

[0059] As a variation, the load adjustment mechanism also includes other pulley assemblies to adjust the movement trajectory of the individual force transmission ropes, thereby changing the direction of the loading on the rotor 32 when the connection position of the positioning rod 421 on the connecting frame 41 is changed.

[0060] As a variation, the force transmission member 43 is set as a force transmission rod, such as a straight rod or a bent rod.

[0061] In some embodiments, the force transmission member 43 is arranged with the force direction of the end away from the loading perpendicular to the extension axis of the rotor member 32. This arrangement allows the force direction of the force transmission member 43 on the rotor member 32 to be arranged along the radial direction of the rotor member 32.

[0062] In some implementations, see Figure 6 The test bench 1 is provided with a connection channel 11, and the support 21 of the support assembly is fixedly connected to the connection channel 11 by a locking member. The position of the support 21 can be adjusted through the connection channel 11, and the support 21 and the test bench 1 are fixed together by the locking member to change the support position of the support assembly on the rotor 32.

[0063] As one specific implementation method, see Figure 6 The connecting channel 11 is configured with a T-shaped cross section. The locking element has a connecting end and a locking end. The connecting end is slidably disposed within the connecting channel 11, and the locking end is used to lock the test bench 1 and the support 21 relative to each other. The locking element can be configured as a bolt assembly.

[0064] Of course, the connecting bracket 41 can also adopt the same solution and be fixedly connected to the connecting channel 11 by locking components.

[0065] In some implementations, see Figure 6The test bench 1 is provided with a guide groove 12; the guide groove 12 and the support 21 of the support assembly are slidably configured; of course, the guide groove 12 and the connecting frame 41 can also be slidably configured. This configuration, using the guide groove 12 to assist in adjusting the installation position of the support 21 or the connecting frame 41, is beneficial to strengthening the connection accuracy of the structure and ensuring the coaxiality of the rotor 32, the support 21, and the connecting frame 41.

[0066] In some implementations, see Figure 1 The drive assembly also includes a coupling 33, one side of which is fixedly connected to the drive side of the drive component 31, and the other side of which is fixedly connected to the rotor component 32.

[0067] As a variation, the adjusting structure 42, the force transmission component 43, and the tray together constitute an adjusting assembly; the loading device can be configured with two or more adjusting assemblies to load the rotor component 32, and the resultant force formed by multiple adjusting assemblies is the actual loading direction on the rotor component 32. This configuration allows for flexible configuration of the loading force and its direction on the rotor component 32, meeting usage requirements and improving the repeatability of the loading device.

[0068] As a variation, the adjusting structure 42, force transmission component 43, tray, fixed pulley 46, and pulley support 47 together constitute an adjusting assembly. The force transmission component 43 is configured as a force transmission rope. The loading device can be equipped with two or more adjusting assemblies to load the rotor component 32. The resultant force formed by multiple adjusting assemblies is the actual loading direction on the rotor component 32. This configuration allows for flexible configuration of the loading force and its direction on the rotor component 32, meeting usage requirements and improving the repeatability of the loading device.

[0069] In another embodiment of the invention, see Figure 7 The loading device is equipped with two load adjustment mechanisms; the two load adjustment mechanisms are set at intervals, and the misalignment test is carried out on the same rotor 32 and its support components through the two load adjustment mechanisms. By adjusting the connection position of the adjustment structure 42 in any load adjustment mechanism on the connecting frame 41, the direction of the loading force can be adjusted according to the desired requirements. Loads of different weights are set in the tray 45 in the two load adjustment mechanisms to adjust the different loading forces on the rotor 32.

[0070] Of course, the loading device provided by this invention can be equipped with more load adjustment mechanisms to conduct misalignment tests on the same rotor component 32 and its support assembly. The loading device provided in this embodiment can be configured to perform misalignment fault tests on multiple supports.

[0071] In the above description, the rotor component 32 itself may be configured with a loading object. For example, the rotor component 32 may be provided with one or two or more loading wheels along the axial direction. The loading wheels may be configured to be concentric or eccentric with the rotor component 32 to adjust the loading mode of the rotor component 32 itself.

[0072] Furthermore, the loading wheels are adjustablely mounted on the rotor component 32 to load different parts of the rotor component 32 to meet usage requirements. The loading wheels are spaced apart from the connecting frame 41, the retaining bearing 44, and the support assembly.

[0073] This invention can adjust the misalignment loading force and direction on the support, and can effectively simulate and test the misalignment fault of the elastic support-rotor system under conditions close to actual working conditions. It provides scientific basis and support for the design and performance of the rotor system. The implementation process is convenient, can maintain good misalignment accuracy, and has good test repeatability.

[0074] The present invention also provides a loading method for the above-described elastic support-rotor system support misalignment fault loading device, comprising the following steps:

[0075] The support assembly is set on the test bench 1, the rotor 32 of the drive assembly and the support assembly are rotated and assembled, and the rotor 32 is connected to the drive end of the drive assembly 31.

[0076] The retaining bearing 44 is connected at the preset loading position of the rotor 32, and the connecting frame 41 is assembled on the test bench 1 at a distance close to the retaining bearing 44.

[0077] The connection position of the variable adjustment structure 42 on the connecting frame 41 is adjusted according to the direction of the loading on the rotor component 32.

[0078] One end of the force transmission component 43 is connected to the retaining bearing 44, and the other end is connected to the pallet component 45;

[0079] Loads of different weights are loaded into the tray 45 to adjust the loading force on the rotor 32. When it is necessary to adjust the loading direction on the rotor 32, the connection position of the adjustment structure 42 on the connecting frame 41 is adjusted.

[0080] The loading method provided by this invention further includes:

[0081] Based on the stiffness of the elastic support, calculate the radial displacement of the rotor component 32 axis under a specified misalignment: Radial displacement of rotor component 32 axis = Misalignment * Radius of elastic support;

[0082] Based on the above steps, the radial displacement of the rotor component 32 axis is calculated, and the radial force to be applied to the rotor component 32 axis is calculated: Radial force = Elastic support stiffness * Radial displacement of rotor component 32 axis;

[0083] Based on the radial force calculated in the above steps, calculate the weight of the load to be applied to the pallet 45: Load weight = radial force / g - weight of pallet 45, where g is the local gravitational acceleration value;

[0084] The corresponding load weight is loaded into the pallet 45. After the system stabilizes, the misalignment fault test of the elastic support-rotor system under the specified misalignment condition can be carried out.

[0085] If it is necessary to change the magnitude of the applied loading force, the weight of the load can be changed. If it is necessary to change the direction of the misalignment fault, the connection position of the adjustment structure 42 on the connecting frame 41 can be adjusted.

[0086] In the above description, the loading object can be set as a weight, which facilitates the operator's actual configuration of the loading force. Of course, the loading device can be configured with an active constant force application mechanism, which can achieve the same loading effect as the loading object, depending on the operator's configuration.

[0087] The loading device and loading method provided by the present invention can generate different forces or torques in the designated bearing 44 by loading loads of different weights, thereby generating different misalignments at the corresponding supports. Compared with applying electromagnetic force through traditional electromagnetic fields or through screw-tensioner structures, the present invention can apply misalignments of different directions and magnitudes to the elastic support-rotor system using a simple structure. The whole solution is simple in structure, easy to operate, and highly economical.

[0088] This invention allows for the adjustment of misalignment by simply increasing or decreasing the weight of the load, avoiding the need to replace parts, saving testing time, and reducing the risk of damage to the test equipment components during assembly and disassembly. The solution of injecting misalignment faults at multiple supports has the same types of parts as the solution with a single support. Compared to the solution with a single support, the solution with multiple supports increases the number of load adjustment mechanisms, making it easier to repeat.

[0089] The loading device and loading method provided by this invention have a simple structure, are easy to install, and are highly versatile. They can be widely used in laboratory experimental research on static misalignment faults of large, medium, and small elastic supports and rotors.

[0090] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A load-loading device for misalignment faults in an elastic support-rotor system, characterized in that, include: Test bench (1); At least two support components are installed on the test bench (1), and the support components are configured as elastic support structures; The drive assembly includes a drive member (31) and a rotor member (32). The drive member (31) is mounted on the support assembly, and the rotor member (32) is throttlely connected to the drive end of the drive member (31). The rotor member (32) and the support assembly are rotatably connected. The system includes at least one load adjustment mechanism, comprising a connecting frame (41), an adjustment structure (42), a force transmission member (43) slidably abutting on the adjustment structure (42), a retaining bearing (44) sleeved and installed on the outer periphery of the rotor (32), and a tray member (45). One end of the force transmission member (43) is fixedly connected to the retaining bearing (44), and the other end is fixedly connected to the tray member (45). The connecting frame (41) is spaced around the outside of the rotor (32), and the adjustment structure (42) and the rotor (32) are spaced apart. The tray member (45) is adapted to place a load so that it is loaded onto the rotor (32) through the force transmission member (43) and the retaining bearing (44). The adjustment structure (42) can be detachably disposed at at least two spaced connection positions on the connecting frame (41) to change the direction of the force exerted by the force transmission member (43) and the retaining bearing (44) on the rotor (32).

2. The loading device according to claim 1, characterized in that, The connecting frame (41) includes a positioning groove (411) and a hollow space (412), at least part of the adjusting structure (42) is detachably connected in the positioning groove (411), and the rotor (32) passes through the hollow space (412).

3. The loading device according to claim 2, characterized in that, The adjustment structure (42) includes a positioning rod (421) and a locking member (422). The positioning rod (421) is fixedly connected to the positioning groove (411) through the locking member (422). The locking member (422) and the connecting frame (41) are mutually abutted and limited.

4. The loading device according to claim 3, characterized in that, The positioning groove (411) is configured as a stepped annular groove. The positioning rod (421) includes a limiting head (4211) and a connecting section (4212). The limiting head (4211) is disposed in the positioning groove (411). The locking member (422) is sleeved on the positioning rod (421). The connecting section (4212) and the locking member (422) are threaded together so that when the limiting head (4211) and the locking member (422) move closer together, the limiting head (4211) and the locking member (422) can clamp and fix the connecting frame (41).

5. The loading device according to claim 2, characterized in that, The support assembly includes a support (21) and a support bearing (22). The support (21) and the support bearing (22) are arranged correspondingly. The support (21) is detachably connected to the test bench (1). The support bearing (22) is installed inside the support (21). The support bearing (22) and the rotor (32) are rotatably connected.

6. The loading device according to claim 1, characterized in that, The force transmission component (43) is configured as a force transmission rope. The load adjustment mechanism also includes a fixed pulley (46) and a pulley bracket (47). The fixed pulley (46) and the pulley bracket (47) are rotatably connected. The pulley bracket (47) is adapted to connect with an external positioning frame. The middle section of the force transmission component (43) is slidably connected with the fixed pulley (46).

7. The loading device according to any one of claims 1-6, characterized in that, The test bench (1) is provided with a connection channel (11); The support assembly is fixedly connected to the connection channel (11) by a locking member; and / or the connecting frame (41) is fixedly connected to the connection channel (11) by a locking member.

8. The loading device according to any one of claims 1-6, characterized in that, The test bench (1) is provided with a guide groove (12); The guide groove (12) and the support assembly are slidably configured; and / or the guide groove (12) and the connecting frame (41) are slidably configured.

9. The loading device according to any one of claims 1-6, characterized in that, The drive assembly also includes a coupling (33), one side of which is fixedly connected to the drive side of the drive member (31), and the other side of which is fixedly connected to the rotor member (32).

10. A loading method for a load-loading device for misalignment faults in an elastic support-rotor system as described in any one of claims 1 to 9, characterized in that, Includes the following steps: The support assembly is set on the test bench (1), the rotor (32) of the drive assembly and the support assembly are rotated and assembled, and the rotor (32) is connected to the drive end of the drive assembly (31); Connect the retaining bearing (44) to the preset loading position of the rotor (32), and assemble the connecting frame (41) on the test bench (1) at a distance close to the retaining bearing (44); Adjust the connection position of the variable adjustment structure (42) on the connecting frame (41) according to the loading direction of the rotor component (32); Connect one end of the force transmission component (43) to the retaining bearing (44) and the other end to the pallet component (45); Loading different weights of loads into the tray (45) to adjust the loading force on the rotor (32). When it is necessary to adjust the loading direction on the rotor (32), the connection position of the adjustment structure (42) on the connecting frame (41) is adjusted.

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