Multi-vibration-factor adjustable vertical double-disc rotor vibration experiment table

Abstract

The invention discloses a vertical double-disc rotor vibration experiment table with multiple adjustable vibration factors. Comprising an L-shaped base, a variable frequency motor, a motor support, a coupler, a rotating shaft, a bearing seat, a transverse moving device, a disc, a feather key, a sensor support, a magnetic powder brake, a magnetic powder brake support, a magnetic powder tension controller, a computer, an information collector, a signal conditioner, a frequency converter, an inductive sensor, a T-shaped sliding block and a mass block. The unbalanced mass is regulated and controlled by increasing or decreasing the number of the mass blocks on the discs, the load of the magnetic powder brake can be controlled by adjusting the magnetic powder tension controller, and the axial position of the double discs can be changed. Under the excitation of the vibration, the displacement of the disc in the X and Y directions is recorded by using an inductive sensor so as to analyze the vibration characteristics of the disc. The method is suitable for simulating rotor experiments under various vibration excitation, and aims to verify the accuracy of theoretical analysis or provide reference for reducing the vibration of actual mechanical equipment.

Description

Technical Field

[0001] The invention relates to the technical field of rotor system experiments, and in particular to a vertical double-disc rotor vibration test bench with adjustable multiple vibration factors. Background Art

[0002] The rotor system in large rotating mechanical equipment such as the main circulation pumps and turbine units in nuclear power plants is usually a vertical structure. Its layout and load-bearing conditions are quite different from those of the horizontal bearing-rotor system. In order to simulate various actual working conditions of these equipment, a vertical rotor test bench needs to be built.

[0003] The structures of the various components on the existing vertical rotor test bench are generally relatively fixed, and the relative positions in all directions cannot be changed. This limits the flexibility of the experimental device to meet different experimental requirements, and also greatly increases the cost of simulating complex dynamic working conditions, such as shaft misalignment and mass imbalance, resulting in limitations in the experimental device in adapting to the test and analysis needs of mechanical equipment under different working conditions.

[0004] The existing vertical rotor test bench has a relatively simple function, mainly providing basic measurement and analysis functions, and does not have the vibration test conditions to simulate multiple factors. This limits the application of the test bench in teaching, scientific research and actual production practice, and cannot meet the needs of complex vibration characteristics analysis. Summary of the invention

[0005] The purpose of the present invention is to overcome the above technical deficiencies and propose a vertical double-disc rotor vibration test bench with adjustable multiple vibration factors. The present invention can simulate multiple vibration factors including shaft misalignment, disc mass imbalance, workload changes, and axial movement. Therefore, the present invention can provide a more comprehensive vibration characteristic analysis, improve the accuracy and practicality of the experiment, and thus meet the needs of rotating machinery design and maintenance.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a vertical double-disc rotor vibration test bench with adjustable multiple vibration factors, characterized in that it includes: an L-shaped base, a variable frequency motor, a motor bracket, a coupling, a rotating shaft, a bearing seat, a lateral moving device, a disc, a sliding key, a sensor bracket, a magnetic powder brake, a magnetic powder brake bracket, a magnetic powder tension controller, a computer, an information collector, a signal conditioner, a frequency converter, an inductive sensor, a T-shaped slider, and a mass block; in a possible technical scheme, further, the L-shaped base has two T-slots on the surface of the upper base and is provided with a plurality of through holes, and a triangular bracket is welded at the left and right ends of the upper and lower base surfaces to fix the upper and lower bases, and the lower base is provided with a plurality of corresponding through holes.

[0007] In a possible technical solution, further, the variable frequency motor is placed on the upper surface of the L-shaped base, the front end of the variable frequency motor is provided with a motor bracket for fixing the motor, the bottom of the motor bracket is provided with 4 bolt holes, the front of the motor bracket is provided with four through holes, the front through holes of the motor bracket are connected to the front end of the variable frequency motor with screws, and the lower end of the motor bracket is connected to the through holes of the upper base with bolts. The rear end of the variable frequency motor is connected to the frequency converter. The frequency converter is provided with switches for controlling the speed of the variable frequency motor, emergency stop, movement, etc. The frequency converter can control the speed of the variable frequency motor, which is convenient for recording speed data.

[0008] In a possible technical solution, further, a slider is provided at the lower end of the sensor bracket, and through holes are provided at both ends of the slider. The slider is connected to the T-slot on the right side of the upper base surface by screws, and the upper end of the slider is a rectangular block, and the rectangular block is provided with a through hole at the same height as the rotating shaft, and a rectangular square plate is horizontally connected above the rectangular block, and a through hole is provided in the rectangular square plate. The sensor bracket can move with the movement of the disc, which is convenient for recording the displacement data of the double discs in the X and Y directions, and obtaining the vibration characteristics of the double discs.

[0009] In a possible technical solution, further, the rotating shaft has a keyway in the middle, a coupling is provided at the front end of the rotating shaft, and set screw holes are provided at both ends of the coupling, and the variable frequency motor is extended out of the shaft and the rotating shaft, and fixed with set screws through the coupling. The rotating shaft is fixed with a bearing seat, a disc, a keyway, and a magnetic powder brake.

[0010] In a possible technical solution, further, a deep groove ball bearing is provided in the middle of the bearing seat, and a bearing sleeve is provided in the middle of the bearing. The bearing sleeve fastens the deep groove ball bearing, and a sleeve is provided in the middle of the bearing sleeve, and a groove is provided in the middle of the sleeve, and the groove is used as a shoulder to fix the bearing sleeve at both ends, and the sleeve is provided with two screw holes, and the sleeve is fixed to the rotating shaft with screws.

[0011] In a possible technical solution, further, a lateral moving device is placed at the lower end of the bearing seat, and two screw holes are opened below the bearing seat (6), which are fixed to the lateral moving device through the lower end of the bearing seat by screws. The lateral moving device is divided into upper and lower parts, and the bottom end of the lower lateral moving device is connected to the T-shaped slider by screws. The T-shaped slider has through holes at both ends and is fixed in the T-shaped slot on the left side of the upper base by screws. The lower lateral moving device is provided with a T-slot rectangular block, a rack is provided at the front end of the T-slot rectangular block, and a scale is provided at the rear end of the T-slot rectangular block. The surface of the rack is provided with two holes and is fixed to the front end of the T-slot rectangular block by screws. The upper lateral moving device has a T-stage at the lower end of the rectangular block, which cooperates with the T-slot of the lower lateral moving device to move horizontally. A through hole is provided in the middle of the rectangular block, and the through hole is used to assemble a short shaft. The short shaft has a shoulder at the front end of the rectangular block, and a groove is provided on the shaft. An axial retaining ring is installed on the groove, and a circular knob is provided at the rear end of the rectangular block. The short shaft is provided with a gear on the front end of the rectangular block. The front end of the gear is fixed by a short shaft shoulder, and the rear end is fixed by a sleeve with a hole with screws.

[0012] In a possible technical solution, further, the disk is connected to the sliding key with screws, 3 through holes and 3 side through holes are distributed on the disk, the large through hole can be used to place the mass block, the hole can be used to fix the mass block with screws, and the disk has a sliding key groove in the middle.

[0013] In a possible technical solution, further, the sliding key is placed between the disk and the rotating shaft, a screw hole is provided below the sliding key, the sliding key is connected to the disk by screws, and a through hole is provided behind the disk to connect the sliding key to the rotating shaft by screws. In a possible technical solution, further, the large through hole on the disk can be used to place a mass block or a small ball to adjust the size and direction of the unbalanced mass.

[0014] The front end of the magnetic powder brake has an extension shaft, and the front end extension shaft and the rotating shaft are fixed with set screws at both ends of the coupling. The magnetic powder brake is connected to the magnetic powder tension controller. The magnetic powder tension controller is provided with a tension adjustment knob and a start-stop switch. The magnetic powder brake bracket is placed on the upper end of the magnetic powder brake and connected with screws. The magnetic powder brake bracket has through holes distributed on the upper end of the magnetic powder brake bracket and is connected with the magnetic powder brake by screws, and the lower end of the magnetic powder brake bracket is provided with two through holes, which are connected with the corresponding through holes of the upper base by bolts.

[0015] In a possible technical solution, further, the signal conditioner is connected to the inductive sensor, the information collector is connected to the signal conditioner, and the computer is connected to the information collector. The inductive sensor is placed on a sensor bracket and connected to the sensor bracket via an inductive sensor threaded nut.

[0016] In a possible technical solution, further, the inductive sensor on the sensor bracket collects the displacement of the disk in the X and Y directions, and the obtained signal is amplified, sorted, and processed through a signal conditioner, and the data is transmitted to a computer through an information collector. Finally, the vibration characteristics of the disk are obtained by analyzing and processing the data through software.

[0017] The present invention provides a vertical double-disc rotor vibration test bench with adjustable multiple vibration factors. A variable frequency motor 2, a bearing seat, a disc, a sliding key and a magnetic powder brake are connected through a rotating shaft. The rotating shaft can be misaligned by changing the displacement of a lateral moving device, and the size and direction of the unbalanced mass can be adjusted by increasing or decreasing the eccentric mass block on the disc mass. The load force applied by the magnetic powder brake can also be adjusted by a magnetic powder tension controller. Under these vibration excitations, the displacement of the disc in the X and Y directions is recorded by an inductive sensor to calculate and analyze the changes in the vibration of the disc. The test bench can perform multi-operating condition experiments under multiple vibration factors to verify the accuracy of theoretical analysis or provide a reference for reducing the vibration of actual mechanical equipment.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. This test bench can change the displacement of the lateral moving device, increase or decrease the eccentric mass block on the disc mass, and adjust the load force applied by the magnetic powder brake through the magnetic powder tension controller to simulate complex working conditions such as axial asymmetry, mass imbalance and load change. This simulation capability of multiple vibration factors enables the test bench to more comprehensively analyze and solve various problems that may be encountered in actual machinery.

[0019] 2 This experimental platform can simulate rotor systems with mass distribution in different positions through the design of double disks that can move on the axis. It improves the diversity and flexibility of experiments in studying the critical speed, stability and vibration characteristics of rotor systems with flexible and variable parameters.

[0020] 3. The sensors equipped in this test bench can measure the vibration characteristics of the double disks, which is very useful for analyzing the dynamic response of the rotor system. With these data, researchers can more accurately understand and predict the dynamic characteristics and vibration characteristics of the rotor system. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall assembly diagram of the present invention Figure 2 The motor bracket parts diagram of the present invention Figure 3 This is the bearing seat transfer diagram of the present invention Figure 4 is an assembly diagram of the lateral moving device of the present invention, Figure 5 It is the parts diagram of the disc of the present invention Figure 6 It is the sliding key part diagram of the present invention Figure 7 The sensor bracket parts diagram of the present invention Figure 8 This is a part diagram of the magnetic powder brake bracket of the present invention.

[0022] In the accompanying drawings: 1, L-shaped base; 2, frequency conversion motor; 3, motor bracket; 4, coupling; 5, rotating shaft; 6, bearing seat; 7, lateral moving device; 8, disc; 9, sliding key; 10, sensor bracket; 11, magnetic powder brake; 12, magnetic powder brake bracket; 13, magnetic powder tension controller; 14, computer; 15, information collector; 16, signal conditioner; 17, frequency converter; 18, inductive sensor; 19, T-shaped slider; 20, mass block; 61, deep groove ball bearing; 62, bearing sleeve; 63, sleeve; 71, lower lateral moving device; 711, T-slot rectangular block; 712, rack; 72, upper lateral moving device; 721, rectangular block; 722, short shaft; 723, round knob; 724, gear; 725, axial retaining ring DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper", and "lower" used in the following description refer to directions in the accompanying drawings, and the words "bottom" and "top", "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0024] Example: See Figure 1-Figure 3 The present invention adopts the following technical scheme: a vertical double-disc rotor vibration test bench with adjustable multiple vibration factors, characterized in that it includes: an L-shaped base 1, a frequency conversion motor 2, a motor bracket 3, a coupling 4, a rotating shaft 5, a bearing seat 6, a lateral moving device 7, a disc 8, a sliding key 9, a sensor bracket 10, a magnetic powder brake 11, a magnetic powder brake bracket 12, a magnetic powder tension controller 13, a computer 14, an information collector 15, a signal conditioner 16, a frequency converter 17, an inductance sensor 18, a T-shaped slider 19, and a mass block 20; the L-shaped base 1 is divided into an upper base and a lower base, the surface of the upper base is provided with two T-shaped slots, and is provided with a plurality of through holes, the upper base and the lower base are respectively welded with a triangular bracket at the left and right ends to fix the upper and lower bases, and the lower base is provided with a plurality of corresponding through holes.

[0025] The variable frequency motor 2 is placed on the upper surface of the L-shaped base 1. The front end of the variable frequency motor 2 is provided with a motor bracket 3 for fixing the motor. The bottom of the motor bracket 3 is provided with 4 bolt holes. The front of the bracket 3 is provided with four through holes. The front through holes of the motor bracket 3 are connected to the front end of the variable frequency motor 2 with screws, and the lower end of the motor bracket 3 is connected to the through holes of the upper base with bolts. The rear end of the variable frequency motor 2 is connected to the inverter 17. The inverter 17 is provided with switches for controlling the speed of the variable frequency motor 2, emergency stop, movement, etc. The inverter 17 is convenient for controlling the motor speed and recording the speed data.

[0026] Example: See Figure 7 The sensor bracket 10 is provided with a slider at the lower end, and through holes are provided at both ends of the slider. The slider is connected to the T-slot on the right side of the upper base surface by screws. The upper end of the slider is a rectangular block, and the rectangular block is provided with a through hole at the same height as the rotating shaft 5. A rectangular square plate is horizontally connected above the rectangular block, and a through hole is provided in the rectangular square plate. The sensor bracket can move with the movement of the disc, which is convenient for recording the displacement data of the double discs in the X and Y directions and obtaining the vibration characteristics of the double discs.

[0027] The rotating shaft 5 has a keyway in the middle, a coupling 4 is provided at the front end of the rotating shaft 5, and set screw holes are provided at both ends of the coupling 4, and the extended shaft of the variable frequency motor (2) can be connected to the rotating shaft (5) by the set screws. The rotating shaft 5 is fixed with a bearing seat 6, a disc 8, a keyway 9, and a magnetic powder brake 11.

[0028] Example: See Figure 3 A deep groove ball bearing 61 is arranged in the middle of the bearing seat 6, and a bearing sleeve 62 is arranged in the middle of the bearing. The bearing sleeve 62 fastens the deep groove ball bearing 61, and a sleeve 63 is arranged in the middle of the bearing sleeve 62. A groove is arranged in the middle of the sleeve 63, and the groove is used as a shoulder to fix the bearing sleeve 62 at both ends. The sleeve 63 is provided with two screw holes, and the sleeve 63 is fixed to the rotating shaft 5 by screws.

[0029] Example: See Figure 4The lateral moving device 7 is placed at the lower end of the bearing seat 6. Two screw holes are opened below the bearing seat 6. The lower end of the bearing seat is connected to the lateral moving device by screws. The lateral moving device 7 is divided into upper and lower parts. The bottom end of the lower lateral moving device 71 is connected to the T-shaped slider 19 by screws. The T-shaped slider 19 has through holes at both ends and is fixed in the T-shaped slot on the left side of the upper base by screws. The lower lateral moving device 71 is provided with a T-slot rectangular block 711. A rack 712 is provided at the front end of the T-slot rectangular block 711. A scale is provided at the rear end of the T-slot rectangular block 711. Two holes are provided on the surface of the rack and are fixed to the front end of the T-slot rectangular block 711 by screws. The upper lateral moving device 72 has a T-stage at the lower end of the rectangular block 721, which moves horizontally in coordination with the T-slot of the lower lateral moving device. A through hole is provided in the middle of the rectangular block 721, and a short shaft 722 is assembled in the middle of the through hole. The short shaft 722 has a shoulder at the front end of the rectangular block 721, and a groove is provided on the shaft, and an axial retaining ring 725 is installed on the groove. A circular knob 723 is provided at the rear end of the rectangular block 721. The short shaft 722 is installed with a gear 724 at the front end of the rectangular block 721. The gear 724 is fixed at the front end through the shoulder of the short shaft 722, and the rear end is fixed with a screw through a sleeve with a hole. Through the lateral moving device 7, the gear rack meshing can be accurately controlled, and the bearing seat 6 can also be accurately moved horizontally through the scale below to make the shaft 5 misaligned.

[0030] See also Figure 5-Figure 6 The disk 8 is connected to the sliding key 9 by screws. There are 3 through holes and 3 side through holes on the disk 8. The large through hole can be used to place the mass block 20. The holes can be used to fix the mass block 20 with screws. The disk 8 has a sliding key slot in the middle. The sliding key 9 is placed between the disk 8 and the rotating shaft 5. A screw hole is opened under the sliding key 9. The sliding key 9 is fixed to the disk 8 by screws. The sliding key 8 has a through hole behind the disk 8 and is connected to the rotating shaft 5 by screws. In a possible technical solution, further, the large through hole on the disk 8 can be used to place a mass block or a small ball, so that the disk 8 produces an eccentric mass, thereby regulating the size and direction of the unbalanced mass.

[0031] Example: See Figure 8 The front end of the magnetic powder brake 11 has a protruding shaft, and the front end protruding shaft and the rotating shaft 5 are fixed with set screws at both ends of the coupling 4. The rear end of the magnetic powder brake 11 is connected to the magnetic powder tension controller 13. The magnetic powder tension controller 13 is provided with a tension adjustment knob and a start-stop switch. The magnetic powder brake bracket 12 is placed on the upper end of the magnetic powder brake 11 and connected with screws. The magnetic powder brake bracket 12 has through holes on the upper end thereof and is connected with the magnetic powder brake 11 by screws, and the lower end of the magnetic powder brake bracket 12 is provided with two through holes, which are connected with the corresponding through holes of the upper base by bolts.

[0032] The signal conditioner 16 is connected to the inductive sensor 18, the information collector 15 is connected to the signal conditioner 16, and the computer 14 is connected to the information collector 15. The inductive sensor 18 is placed on the sensor bracket 10 and connected to the sensor bracket 10 through the inductive sensor 18 threaded nut.

[0033] The inductive sensor 18 collects the displacement of the disk 8 in the X and Y directions, and amplifies, organizes, and processes the obtained signal through the signal conditioner 16. Then, the data is transmitted to the computer 14 through the information collector 15. Finally, the vibration characteristics of the disk 8 are obtained by analyzing and processing the data through software.

[0034] The present invention provides a vertical double-disc rotor vibration test bench with adjustable multiple vibration factors. The variable frequency motor 2, the bearing seat 6, the disc 8, the sliding key 9 and the magnetic powder brake 11 are connected through the rotating shaft 5. The rotating shaft 5 can be misaligned by changing the displacement of the lateral moving device 7, and the eccentric mass block on the mass of the disc 8 can be increased or decreased to adjust the size and direction of the unbalanced mass. The load force applied by the magnetic powder brake 11 can also be adjusted by the magnetic powder tension controller 13. Under these vibration excitations, the displacement of the disc 8 in the X and Y directions is recorded by the inductive sensor 18 to calculate and analyze the changes in the vibration of the disc 8. The test bench can carry out multi-operating condition experiments under multiple vibration factors to verify the accuracy of theoretical analysis or provide a reference for reducing the vibration of actual mechanical equipment.

[0035] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0036] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A vertical double-disc rotor vibration test bench with adjustable multiple vibration factors, characterized in that: include: An L-shaped base (1), a variable frequency motor (2), a motor bracket (3), a coupling (4), a rotating shaft (5), a bearing seat (6), a lateral moving device (7), a disc (8), a sliding key (9), a sensor bracket (10), a magnetic powder brake (11), a magnetic powder brake bracket (12), a magnetic powder tension controller (13), a computer (14), an information collector (15), a signal conditioner (16), a frequency converter (17), an inductive sensor (18), a T-shaped slider (19), and a mass block (20); the L-shaped base (1) is divided into an upper base and a lower base, the upper base surface is provided with two T-shaped grooves and a plurality of through holes, a triangular bracket is welded at the left and right ends of the upper and lower base surfaces to fix the upper and lower bases, and the lower base is provided with a plurality of corresponding through holes.

2. A vertical double-disc rotor vibration test bench with adjustable multiple vibration factors according to claim 1, characterized in that: The variable frequency motor (2) is placed on the upper surface of the L-shaped base (1). The front end of the variable frequency motor (2) is provided with a motor bracket (3) for fixing the motor. The bottom of the motor bracket (3) is provided with four bolt holes. The front of the motor bracket (3) is provided with four through holes. The front through holes of the motor bracket (3) are connected to the front end of the variable frequency motor (2) by screws, and the lower end of the motor bracket (3) is connected to the through holes of the upper base by bolts. The rear end of the variable frequency motor (2) is connected to a frequency converter (17). The frequency converter (17) is provided with switches for controlling the speed, emergency stop, movement, etc. of the variable frequency motor (2).

3. A vertical double-disc rotor vibration test bench with adjustable multiple vibration factors according to claim 1, characterized in that: The sensor bracket (10) is provided with a slider at the lower end, and through holes are provided at both ends of the slider. The slider is connected to the T-slot on the right side of the upper base surface by screws, and the slider is a rectangular block, and a through hole is provided at the same height as the rotating shaft (5). A rectangular square plate is horizontally connected above the rectangular block, and a through hole is provided in the rectangular square plate.

4. The vertical double-disc rotor vibration test bench with adjustable multiple vibration factors according to claim 1, characterized in that: The rotating shaft (5) has a keyway groove in the middle thereof, a coupling (4) is provided at the front end of the rotating shaft (5), and fixing screw holes are provided at both ends of the coupling (4), and the extending shaft of the variable frequency motor (2) can be connected to the rotating shaft (5) by fixing screws. A bearing seat (6), a disc (8), a keyway (9), and a magnetic powder brake (11) are fixed on the rotating shaft (5).

5. A vertical double-disc rotor vibration test bench with adjustable multiple vibration factors according to claim 4, characterized in that: A deep groove ball bearing (61) is arranged in the middle of the bearing seat (6), and a bearing sleeve (62) is arranged in the middle of the bearing. The bearing sleeve (62) fastens the deep groove ball bearing (61), a sleeve (63) is arranged in the middle of the bearing sleeve (62), a groove is arranged in the middle of the sleeve (63), and the groove is used as the two ends of the shaft shoulder to fix the bearing sleeve (62), the sleeve (63) is provided with two screw holes, and the sleeve (63) is fixed to the rotating shaft (5) by screws.

6. A vertical double-disc rotor vibration test bench with adjustable multiple vibration factors according to claim 4, characterized in that: A lateral moving device (7) is placed at the lower end of the bearing seat (6). Two screw holes are opened at the lower end of the bearing seat (6) to fix it above the lateral moving device (7). The lateral moving device (7) is divided into an upper and lower part. The lower end of the lower lateral moving device (71) is connected to the T-shaped slider (19) by screws. Through holes are provided at both ends of the T-shaped slider (19) and are fixed in the T-shaped slot on the left side of the upper base by screws. The lower lateral moving device (71) is provided with a T-slot rectangular block (711). A rack (712) is provided at the front end of the T-slot rectangular block (711). A scale is provided at the rear end of the T-slot rectangular block (711). Two holes are provided on the surface of the rack (712) and are fixed to the front end of the T-slot rectangular block (711) by screws. The upper lateral moving device (72) has a T-stage at the lower end of the rectangular block (721) and moves horizontally in cooperation with the T-slot of the lower lateral moving device (71). A through hole is provided in the middle of the rectangular block (721) and is used to assemble a short shaft (722). The short shaft (722) has a shoulder at the front end of the rectangular block (721) and a groove is provided on the shaft. An axial retaining ring (725) is installed on the groove. A circular knob (723) is provided at the rear end of the rectangular block (721). A gear (724) is installed at the front end of the rectangular block (721) of the short shaft (722). The front end of the gear (724) is fixed by the shoulder of the short shaft (722) and the rear end is fixed by a screw through a sleeve with a hole.

7. A vertical double-disc rotor vibration test bench with adjustable multiple vibration factors according to claim 4, characterized in that: The disk (8) and the sliding key (9) are connected by screws. The disk (8) is provided with three through holes and three side through holes. The large through hole can be used to place a mass block (20). The holes can be used to fix the mass block (20) by screws. The disk (8) is provided with a sliding key groove in the middle. The sliding key (9) is placed between the disk (8) and the rotating shaft (5). A through hole is provided below the sliding key (9). The sliding key (9) and the disk (8) are connected by screws. The sliding key (9) is provided with a through hole and is connected to the rotating shaft (5) by screws.

8. The vertical double-disc rotor vibration test bench with adjustable multiple vibration factors according to claim 4, characterized in that: The front end of the magnetic powder brake (11) extends outwardly from the shaft and is connected to the rotating shaft (5) through a coupling (4). The magnetic powder brake (11) is connected to a magnetic powder tension controller (13). The magnetic powder tension controller (13) is provided with a tension adjustment knob and a start / stop switch. The magnetic powder brake bracket (12) is placed on the upper end of the magnetic powder brake (11) and connected with screws. The upper end of the magnetic powder brake bracket (12) is provided with through holes and is connected with the magnetic powder brake (11) by screws. The lower end of the magnetic powder brake bracket (12) is provided with two through holes and is connected with the corresponding through holes of the upper base by bolts.

9. The vertical double-disc rotor vibration test bench with adjustable multiple vibration factors according to claim 1, characterized in that: The signal conditioner (16) is connected to the inductive sensor (18), the information collector (15) is connected to the signal conditioner (16), and the computer (14) is connected to the information collector (15). The inductive sensor (18) is placed on the sensor bracket (10) and connected to the sensor bracket (10) via a threaded nut of the inductive sensor (18).

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