Trimming system and trimming method based on pressure sensor low speed rotating parts

Abstract

The application discloses a low-speed rotating component balancing system based on a pressure sensor, which comprises a balancing device, wherein the balancing device is connected with a three-channel transmitter, the three-channel transmitter is connected with a computer through an adapter, the computer is connected with a PLC, the output end of the PLC is connected with the input end of a servo driver, the output end of the servo driver is communicated with the balancing device, and a closed loop is formed; and the application further discloses a balancing method of the rotating component, which comprises the following steps: fixing the rotating component on a hanging object bottom plate; establishing a coordinate system and obtaining the unbalanced angle and radius of the rotating component; starting a servo motor and calculating the unbalanced height; and adding a balancing block m at a balancing position P 配 of the rotating component according to the obtained unbalanced angle, radius and height of the rotating component, so that the rotating component can be balanced. 配 The low-speed rotating component balancing system and the balancing method based on the pressure sensor have the advantages of simple structure, low cost and high balancing efficiency, and can be applied to the balancing of low-speed rotating components such as single crystal furnace lifting heads.

Description

Technical Field

[0001] This invention belongs to the field of testing and measurement equipment technology, and relates to a balancing system based on a low-speed rotating component of a pressure sensor, as well as a balancing method for the aforementioned rotating component. Background Technology

[0002] Rotating components are core parts of rotating machinery, and their balance characteristics directly affect the stability, safety, and reliability of the equipment. Low-speed rotating components, such as the single-crystal furnace pulling system, although operating at relatively low speeds (typically 10-40 r / min), require high stability within that speed range. Even slight wobbling in the pulling system can cause significant swinging of the bottom of the connected flexible shaft steel cable, thus affecting the quality of crystal growth. The purpose of balancing is to ensure that the center of mass of the rotating component is aligned with or within the allowable range of the rotation center, guaranteeing safe and stable operation.

[0003] The lifting head of a single-crystal furnace is a low-speed rigid rotor. Using high-speed rotor balancing methods would damage its components. Static balancing only maintains balance at rest, failing to guarantee balance throughout the operating speed. Therefore, specialized balancing research is needed for low-speed rotating components. Balancing low-speed rigid rotating parts, such as the lifting head of a single-crystal furnace, is particularly challenging due to their complex shape. Currently, manual estimation and adjustment are used in practice, resulting in low efficiency, long cycles, and limited measurement accuracy. Some researchers have used UG modeling software to create a model of the lifting head, calculating its center of mass for balancing; however, this remains theoretical and hasn't been applied to actual equipment, leaving the balancing problem unsolved. Therefore, researching balancing methods for low-speed rotating components, developing balancing systems for low-speed rotating components, and automatically calculating balancing information are urgent issues that need to be addressed. Summary of the Invention

[0004] The purpose of this invention is to provide a balancing system based on a low-speed rotating component of a pressure sensor, which solves the problems of low efficiency, long cycle and limited measurement accuracy of manual estimation and adjustment in the prior art.

[0005] Another object of the present invention is to provide a method for balancing the above-mentioned rotating component.

[0006] The technical solution adopted in this invention is a balancing system based on a low-speed rotating component of a pressure sensor, including a balancing device. The balancing device is connected to a three-channel transmitter via wires. The output end of the three-channel transmitter is connected to the input end of an adapter. The output end of the adapter is installed on the serial port of a computer. The computer is connected to the interface of a PLC via wires. The output end of the PLC is connected to the input end of a servo driver. The output end of the servo driver is connected to the balancing device to form a closed loop.

[0007] The balancing device is also equipped with a hanging base plate and a servo motor, with the input end of the servo motor connected to the output end of the servo driver.

[0008] The invention is further characterized by:

[0009] The signal end of the balancing device is also connected to a speed encoder, and the output end of the speed encoder is connected to the input end of the servo driver.

[0010] The balancing device includes a base frame, with a measuring platform fixed to the upper part of the base frame. A through hole is opened at the center of the measuring platform, and a shaft is installed inside the through hole. A sensor base plate is installed at one end of the shaft, and a driven wheel is installed at the other end. A motor bracket is fixed on the measuring platform near the driven wheel, and a servo motor is installed on the motor bracket. A synchronous pulley is installed on the output shaft of the servo motor, and the synchronous pulley and the driven wheel are connected by a synchronous belt. The sensor base plate is circular, and three pressure sensors are evenly arranged along the circumference on the sensor base plate. One end of the three pressure sensors is fixed to the sensor base plate with screws, and the other end is fixed to the hanging base plate with screws. A brush slip ring is sleeved between the shaft and the sensor base plate and the driven wheel.

[0011] The hanging base plate has bolt holes at a position concentric with the shaft.

[0012] The three pressure sensors are S-shaped, and their outputs are connected to a three-channel transmitter via wires. The signal terminal of the servo motor is connected to a speed encoder.

[0013] The adapter is for RS485 / RS232.

[0014] Another technical solution adopted in this invention is that the balancing method of the above-mentioned rotating component is implemented according to the following steps:

[0015] Step 1: Secure the rotating component to the bolt holes in the hanging base plate using bolts;

[0016] Step 2: Establish a static detection coordinate system in a stationary state, and determine the unbalance angle and radius of the rotating component;

[0017] Step 3: Start the servo motor and make it rotate at the set speed. Calculate the unbalance height in a dynamic state.

[0018] Step 4: Based on the unbalance angle, radius, and unbalance height of the rotating component obtained in Steps 2 and 3, at the balancing position P... 配 Add a balancing block m at the location 配 It can then be balanced.

[0019] Another feature of the technical solution of the present invention is that:

[0020] Step 2 is as follows:

[0021] Step 2.1: Establish a polar coordinate system with the center of the hanging base plate (3) as the polar center O. The coordinates of the contact points between the three pressure sensors (1) and the hanging base plate (3) are A, B, and C, respectively. Then, the supporting forces measured by the three pressure sensors (1) are F. A (r, 0°), F B (r, 120°) and F C (r, 240°);

[0022] Step 2.2: Establish a torque analysis system with BC, AC, and AB as axes. Based on the torque balance principle, project the position of the unbalanced mass of the rotating component onto OA, OB, and OC respectively to obtain F. A F B F C The torque expression:

[0023]

[0024]

[0025]

[0026] In equations (1) to (3): F A F B F C M0 is the force value of the pressure sensor; r is the mass of the rotating component; θ is the radius of the pressure sensor from point O; r0 is the unbalance angle from point O;

[0027] Step 2.3: From equations (1) to (3), the unbalance angle θ and radius r0 of the rotating component can be obtained as follows:

[0028]

[0029]

[0030] Step 3 specifically involves:

[0031] The centrifugal force generated by the rotating component under dynamic conditions is: F 离 =M0ω 2 r0 (6)

[0032] The generated torque is: T = F 离 ·h0=M0ω 2 r0·h0 (7)

[0033] Project the distances of the three pressure sensors (1) relative to point O onto a plane passing through the centroid of M0, with the direction of M0 away from point O as positive:

[0034] The projected lever arm at point A is: r·cosθ (8)

[0035] The projected lever arm of point B is: r·cos(θ-120°) (9)

[0036] The projected lever arm at point C is: r·cos(θ-240°) (10)

[0037] At this moment, the torque generated by the centrifugal force and the torque experienced by the pressure sensors bring the balancing system into a state of equilibrium in space, forming a spatial force system with the force application points of the three pressure sensors. Therefore:

[0038] F A ·r·cosθ+F B ·r·cos(θ-120°)+F C ·r·cos(θ-240°)=M0ω 2 r0h0 (11)

[0039] The unbalance height h0 of the rotating component can then be calculated as follows:

[0040]

[0041] In equations (6) to (12): F A F B F C ω is the force value of the pressure sensor; M0 is the mass of the rotating component; θ is the unbalance angle; r is the radius of the pressure sensor from point O; r0 is the radius of the unbalanced position from point O; ω is the rotational speed.

[0042] Step 4 is as follows:

[0043] Add a balancing block m at the unbalance height h0. 配 , balancing block m 配 Placed at the location opposite to the rotation center O, based on the unbalance angle θ calculated in step 2, and satisfying F in the static state. A =F B =F C This will result in: M0gr0 = m 配 gl 配 ,Right now:

[0044]

[0045] In formula (13): l 配 For balancing block m 配 Distance relative to the center of rotation O; m 配 M0 is the mass of the balancing block; M0 is the mass of the rotating component; r0 is the radius of the unbalanced position from point O.

[0046] Then at the balancing position P 配 (l 配 Add a balancing block m at θ+180° and height h0. 配 It can then be balanced.

[0047] The beneficial effects of this invention are:

[0048] (1) The present invention is based on a balancing system of a low-speed rotating component of a pressure sensor. The balancing device has a simple structure and low manufacturing cost.

[0049] (2) The present invention is a balancing system based on a pressure sensor and a low-speed rotating component. It realizes automatic data acquisition, motor motion control, and automatic calculation of the center of gravity of the rotating component. It has complete functions and a high degree of automation, which greatly improves the balancing efficiency.

[0050] (3) The present invention provides a two-step balancing method based on the balancing method of the low-speed rotating component of the pressure sensor. It achieves in-plane balancing in a static state and three-dimensional spatial balancing in a moving state. High-precision balancing can be achieved by calculating different parameters step by step.

[0051] (4) The present invention is based on a balancing system and balancing method for a low-speed rotating component of a pressure sensor, which solves the problem that the balancing of a low-speed rotating component can only be estimated manually. It can be applied to the balancing of low-speed rotating components such as the lifting head of a single crystal furnace. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the balancing system based on the low-speed rotating component of the pressure sensor of the present invention;

[0053] Figure 2 This is a schematic diagram of the balancing device in the balancing system of the rotating component of the present invention;

[0054] Figure 3 This is a coordinate system schematic diagram of the balancing method for the rotating component of the present invention.

[0055] In the diagram, 1. Pressure sensor, 2. Sensor base plate, 3. Hanging base plate, 4. Base frame, 5. Servo motor, 6. Motor bracket, 7. Synchronous pulley, 8. Shaft, 9. Brush slip ring, 10. Balancing device, 11. Three-channel transmitter, 12. Adapter, 13. Computer, 14. PLC, 15. Servo driver, 16. Speed ​​encoder. Detailed Implementation

[0056] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0057] Example 1

[0058] This invention is based on a balancing system for a low-speed rotating component of a pressure sensor, such as... Figure 1As shown, the device includes a balancing device 10, which is connected to a three-channel transmitter 11 via wires. The output of the three-channel transmitter 11 is connected to the input of an adapter 12. The output of the adapter 12 is installed on the serial port of a computer 13. The computer 13 is connected to the interface of a PLC 14 via wires. The output of the PLC 14 is connected to the input of a servo driver 15. The output of the servo driver 15 is connected to the balancing device 10, forming a closed loop. The balancing device 10 is also equipped with a hanging base plate 3 and a servo motor 5. The input of the servo motor 5 is connected to the output of the servo driver 15. The balancing device 10 collects information about the object being measured and transmits the sensor data to the computer 13 via serial communication through the three-channel transmitter 11 and the RS485 / RS232 adapter 12. The computer 13 then displays the data and performs balancing calculations. Computer 13 provides speed setting signals to PLC 14. PLC 14 sends low-voltage control signals to servo driver 15, and then servo driver 15 amplifies these signals for use by servo motor 5.

[0059] The signal terminal of the balancing device 10 is also connected to the speed encoder 16, and the output terminal of the speed encoder 16 is connected to the input terminal of the servo driver 15. The speed encoder 16 collects electrical pulse signals as speed feedback and sends them back to the servo driver 15. The servo driver 15 compares the feedback value with the target value to form a closed-loop control, thereby achieving the purpose of precisely adjusting the running speed of the servo motor 5.

[0060] Example 2

[0061] This invention is based on a balancing system for a low-speed rotating component of a pressure sensor, such as... Figure 1 As shown, the device includes a balancing device 10, which is connected to a three-channel transmitter 11 via wires. The output of the three-channel transmitter 11 is connected to the input of an adapter 12. The output of the adapter 12 is installed on the serial port of a computer 13. The computer 13 is connected to the interface of a PLC 14 via wires. The output of the PLC 14 is connected to the input of a servo driver 15. The output of the servo driver 15 is connected to the balancing device 10, forming a closed loop. The balancing device 10 is also equipped with a hanging base plate 3 and a servo motor 5. The input of the servo motor 5 is connected to the output of the servo driver 15. The balancing device 10 collects information about the object being measured and transmits the sensor data to the computer 13 via serial communication through the three-channel transmitter 11 and the RS485 / RS232 adapter 12. The computer 13 then displays the data and performs balancing calculations. Computer 13 provides speed setting signals to PLC 14. PLC 14 sends low-voltage control signals to servo driver 15, and then servo driver 15 amplifies these signals for use by servo motor 5.

[0062] The signal terminal of the balancing device 10 is also connected to the speed encoder 16, and the output terminal of the speed encoder 16 is connected to the input terminal of the servo driver 15. The speed encoder 16 collects electrical pulse signals as speed feedback and sends them back to the servo driver 15. The servo driver 15 compares the feedback value with the target value to form a closed-loop control, thereby achieving the purpose of precisely adjusting the running speed of the servo motor 5.

[0063] The balancing device in the balancing system of the rotating component of the present invention, such as... Figure 2 As shown, the balancing device 10 includes a base frame 4, with a measuring platform fixed on the upper part of the base frame 4. A through hole is opened at the center of the measuring platform, and a shaft 8 is installed in the through hole. A sensor base plate 2 is installed at one end of the shaft 8, and a driven wheel is installed at the other end. A motor bracket 6 is fixed on the surface of the measuring platform near the driven wheel. A servo motor 5 is installed on the motor bracket 6. A synchronous pulley 7 is installed on the output shaft of the servo motor 5. The synchronous pulley 7 and the driven wheel are connected by a synchronous belt. The servo motor 5 uses the synchronous pulley 7 to transmit the rotational speed to the sensor base plate 2 and the hanging base plate 3 through the shaft 8 and the brush slip ring 9. The sensor base plate 2 is circular, and three pressure sensors 1 are evenly arranged along the circumference on the sensor base plate 2. The three pressure sensors 1 are evenly distributed on the same circumference, and the included angle between any two adjacent pressure sensors 1 is 120°. One end of the three pressure sensors 1 is fixed to the sensor base plate 2 by screws, and the other end is fixed to the hanging base plate 3 by screws. The shaft 8 is fitted with a brush slip ring 9 between the sensor base plate 2 and the driven wheel.

[0064] Example 3

[0065] This invention is based on a balancing system for a low-speed rotating component of a pressure sensor, such as... Figure 1 As shown, the device includes a balancing device 10, which is connected to a three-channel transmitter 11 via wires. The output of the three-channel transmitter 11 is connected to the input of an adapter 12. The output of the adapter 12 is installed on the serial port of a computer 13. The computer 13 is connected to the interface of a PLC 14 via wires. The output of the PLC 14 is connected to the input of a servo driver 15. The output of the servo driver 15 is connected to the balancing device 10, forming a closed loop. The balancing device 10 is also equipped with a hanging base plate 3 and a servo motor 5. The input of the servo motor 5 is connected to the output of the servo driver 15. The balancing device 10 collects information about the object being measured and transmits the sensor data to the computer 13 via serial communication through the three-channel transmitter 11 and the RS485 / RS232 adapter 12. The computer 13 then displays the data and performs balancing calculations. Computer 13 provides speed setting signals to PLC 14. PLC 14 sends low-voltage control signals to servo driver 15, and then servo driver 15 amplifies these signals for use by servo motor 5.

[0066] The signal terminal of the balancing device 10 is also connected to the speed encoder 16, and the output terminal of the speed encoder 16 is connected to the input terminal of the servo driver 15. The speed encoder 16 collects electrical pulse signals as speed feedback and sends them back to the servo driver 15. The servo driver 15 compares the feedback value with the target value to form a closed-loop control, thereby achieving the purpose of precisely adjusting the running speed of the servo motor 5.

[0067] The balancing device in the balancing system of the rotating component of the present invention, such as... Figure 2 As shown, the balancing device 10 includes a base frame 4, with a measuring platform fixed on the upper part of the base frame 4. A through hole is opened at the center of the measuring platform, and a shaft 8 is installed in the through hole. A sensor base plate 2 is installed at one end of the shaft 8, and a driven wheel is installed at the other end. A motor bracket 6 is fixed on the surface of the measuring platform near the driven wheel. A servo motor 5 is installed on the motor bracket 6. A synchronous pulley 7 is installed on the output shaft of the servo motor 5. The synchronous pulley 7 and the driven wheel are connected by a synchronous belt. The servo motor 5 uses the synchronous pulley 7 to transmit the rotational speed to the sensor base plate 2 and the hanging base plate 3 through the shaft 8 and the brush slip ring 9. The sensor base plate 2 is circular, and three pressure sensors 1 are evenly arranged along the circumference on the sensor base plate 2. The three pressure sensors 1 are evenly distributed on the same circumference, and the included angle between any two adjacent pressure sensors 1 is 120°. One end of the three pressure sensors 1 is fixed to the sensor base plate 2 by screws, and the other end is fixed to the hanging base plate 3 by screws. The shaft 8 is fitted with a brush slip ring 9 between the sensor base plate 2 and the driven wheel.

[0068] The hanging base plate 3 has bolt holes at a position concentric with the shaft 8.

[0069] The three pressure sensors 1 are S-shaped, and their output terminals are connected to the three-channel transmitter 11 via wires. The signal terminal of the servo motor 5 is connected to the speed encoder 16.

[0070] Adapter 12 is for RS485 / RS232.

[0071] In the above structure, the balancing device 10 provides a detection platform, with three pressure sensors 1 for data detection, a PLC 14, a servo driver 15, and a speed encoder 16 for controlling the rotational speed of the servo motor 5, which drives the detection platform to rotate, and a computer 13 for providing measurement algorithms. Through the organic integration of these components, the system achieves automatic calculation of the center of gravity of rotating parts, automatic calculation of balancing information, and status monitoring.

[0072] This invention is based on a balancing method for a low-speed rotating component of a pressure sensor, such as... Figure 3As shown, point O is the center of the balancing system's mounting plate, and a polar coordinate system is established with this point as the origin; the Z-axis is the central axis of the test bench; A, B, and C are the coordinate points where the three S-shaped pressure sensors 1 contact the balancing system's mounting plate, and the three S-shaped pressure sensors are evenly distributed at a 120° angle on the circumference centered at point O; O is the polar center of the polar coordinate system, F A (r, 0°), F B (r, 120°), F C (r, 240°) represents the supporting force measured by the three pressure sensors after the balancing system is started. The mass of the object is M0. Since the object has an unbalanced mass, its actual center of gravity is not on its axis of rotation, i.e., P does not coincide with the centroid O. Therefore, P(r0, θ) is the coordinate of the actual center of gravity of the object, with a height of h0.

[0073] When the balancing system is activated, under static conditions, the force sensor exerts a supporting force F on the hanging plate of the dynamic leveler. A F B F C The weight G of the object being measured is in equilibrium within this plane. The gravitational torque of the unbalanced mass of the object being measured is equal to the resistive torque experienced by the sensor, and F A F B F C All values ​​are greater than 0, indicating pressure. Point P must be located within the triangle. Torque analysis systems are established with BC, AC, and AB as axes. Based on the torque balance principle, the position of the unbalanced mass of the measured object is projected onto OA, OB, and OC to obtain F. A F B F C The torque expression is given. The parameters known before balancing are: the radius of the three pressure sensors 1 from the rotation center and the rotational angular velocity of the servo motor 5.

[0074] This invention relates to a balancing method for a low-speed rotating component of a pressure sensor, which is implemented according to the following steps:

[0075] Step 1: Fix the rotating part to the bolt holes in the hanging base plate 3 using bolts;

[0076] Step 2: Establish a static detection coordinate system in a stationary state, and determine the unbalance angle and radius of the rotating component;

[0077] Step 2 is as follows:

[0078] Step 2.1: Establish a polar coordinate system with the center of the hanging base plate (3) as the polar center O. The coordinates of the contact points between the three pressure sensors (1) and the hanging base plate (3) are A, B, and C, respectively. Then, the supporting forces measured by the three pressure sensors (1) are F. A (r, 0°), F B(r, 120°) and F C (r, 240°);

[0079] Step 2.2: Establish a torque analysis system with BC, AC, and AB as axes. Based on the torque balance principle, project the position of the unbalanced mass of the rotating component onto OA, OB, and OC respectively to obtain F. A F B F C The torque expression:

[0080]

[0081]

[0082]

[0083] In equations (1) to (3): F A F B F C M0 is the force value of the pressure sensor; r is the mass of the rotating component; θ is the radius of the pressure sensor from point O; r0 is the unbalance angle from point O;

[0084] Step 2.3: From equations (1) to (3), the unbalance angle θ and radius r0 of the rotating component can be obtained as follows:

[0085]

[0086]

[0087] Step 3: Start the servo motor 5 and make it rotate at the set speed. Calculate the unbalance height in a dynamic state.

[0088] Step 3 specifically involves:

[0089] The centrifugal force generated by the rotating component under dynamic conditions is: F 离 =M0ω 2 r0 (6)

[0090] The generated torque is: T = F 离 ·h0=M0ω 2 r0·h0 (7)

[0091] Project the distances of the three pressure sensors (1) relative to point O onto a plane passing through the centroid of M0, with the direction of M0 away from point O as positive:

[0092] The projected lever arm at point A is: r·cosθ (8)

[0093] The projected lever arm of point B is: r·cos(θ-120°) (9)

[0094] The projected lever arm at point C is: r·cos(θ-240°) (10)

[0095] At this moment, the torque generated by the centrifugal force and the torque experienced by the pressure sensors bring the balancing system into a state of equilibrium in space, forming a spatial force system with the force application points of the three pressure sensors. Therefore:

[0096] F A ·r·cosθ+F B ·r·cos(θ-120°)+F C ·r·cos(θ-240°)=M0ω 2 r0h0 (11)

[0097] The unbalance height h0 of the rotating component can then be calculated as follows:

[0098]

[0099] In equations (6) to (12): F A F B F C ω is the force value of the pressure sensor; M0 is the mass of the rotating component; θ is the unbalance angle; r is the radius of the pressure sensor from point O; r0 is the radius of the unbalanced position from point O; ω is the rotational speed.

[0100] Step 4: Based on the unbalance angle, radius, and unbalance height of the rotating component obtained in Steps 2 and 3, at the balancing position P... 配 Add a balancing block m at the location 配 It can be balanced;

[0101] Step 4 is as follows:

[0102] Add a balancing block m at the unbalance height h0. 配 The balancing block m 配 Placed at the location opposite to the rotation center O, based on the unbalance angle θ calculated in step 2, and satisfying F in the static state. A =F B =F C This will result in: M0gr0 = m 配 gl 配 ,Right now:

[0103]

[0104] In formula (13): l 配 For balancing block m 配 Distance relative to the center of rotation O; m 配 M0 is the mass of the balancing block; M0 is the mass of the rotating component; r0 is the radius of the unbalanced position from point O.

[0105] Then at the balancing position P 配 (l 配 Add a balancing block m at θ+180° and height h0. 配 The balance can then be achieved. After balancing: It does not change with the rotational speed.

[0106] This application provides a two-step balancing method, achieving in-plane balancing in a static state and three-dimensional balancing in a moving state. In the static state, the unbalance angle and unbalance radius are calculated based on the principle of torque balance. In the rotating state, the height centroid is calculated based on the change in sensor values ​​caused by the centrifugal force generated by the unbalance.

Claims

1. A balancing system based on a low-speed rotating component of a pressure sensor, characterized in that, The system includes a balancing device (10), which is connected to a three-channel transmitter (11) via a wire. The output of the three-channel transmitter (11) is connected to the input of an adapter (12). The output of the adapter (12) is installed on the serial port of a computer (13). The computer (13) is connected to the interface of a PLC (14) via a wire. The output of the PLC (14) is connected to the input of a servo driver (15). The output of the servo driver (15) is connected to the balancing device (10) to form a closed loop. The balancing device (10) is also equipped with a hanging base plate (3) and a servo motor (5), the input end of the servo motor (5) is connected to the output end of the servo driver (15); The balancing device (10) includes a base frame (4), a measuring platform is fixed on the upper part of the base frame (4), a through hole is opened at the center of the measuring platform, a shaft (8) is set in the through hole, a sensor base plate (2) is installed at one end of the shaft (8), and a driven wheel is set at the other end. A motor bracket (6) is fixed on the measuring platform near the driven wheel, a servo motor (5) is installed on the motor bracket (6), a synchronous pulley (7) is set on the output shaft of the servo motor (5), and the synchronous pulley (7) and the driven wheel are connected by a synchronous belt. The sensor base plate (2) is circular, and three pressure sensors (1) are evenly arranged on the sensor base plate (2) along the circumference. One end of the three pressure sensors (1) is fixed to the sensor base plate (2) by screws, and the other end is fixed to the hanging base plate (3) by screws. The shaft (8) is fitted with a brush slip ring (9) between the sensor base plate (2) and the driven wheel.

2. The balancing system for the rotating component according to claim 1, characterized in that, The signal terminal of the balancing device (10) is also connected to the speed encoder (16), and the output terminal of the speed encoder (16) is connected to the input terminal of the servo driver (15).

3. The balancing system for the rotating component according to claim 1, characterized in that, The hanging base plate (3) has bolt holes at a position concentric with the shaft (8).

4. The balancing system for the rotating component according to claim 2, characterized in that, The three pressure sensors (1) are S-shaped, and the output terminals of the three pressure sensors (1) are connected to the three-channel transmitter (11) via wires. The signal terminal of the servo motor (5) is connected to the speed encoder (16).

5. The balancing system for the rotating component according to claim 1, characterized in that, The adapter (12) is RS485 / RS232.

6. A balancing method for a rotating component as described in claim 1, characterized in that, The specific steps are as follows: Step 1: Fix the rotating part to the bolt holes of the hanging base plate (3) with bolts; Step 2: Establish a static detection coordinate system in a stationary state, and determine the unbalance angle and radius of the rotating component; Step 3: Start the servo motor (5) and make the servo motor (5) rotate at the set speed. Calculate the unbalance height in dynamic state. Step 4: Based on the unbalance angle, radius, and unbalance height of the rotating component obtained in Steps 2 and 3, adjust the balance position. Add a balancing block at the location It can then be balanced.

7. The balancing method for the rotating component according to claim 6, characterized in that, Step 2 specifically involves: Step 2.1: Establish a polar coordinate system with the center of the hanging base plate (3) as the pole O. The coordinates of the contact points between the three pressure sensors (1) and the hanging base plate (3) are A, B, and C, respectively. Then the supporting forces measured by the three pressure sensors (1) are F. A (r, 0°), F B (r, 120°) and F C (r, 240°); Step 2.2: Establish a torque analysis system with BC, AC, and AB as axes. Based on the torque balance principle, project the position of the unbalanced mass of the rotating component onto OA, OB, and OC respectively to obtain F. A F B F C The torque expression: （1） （2） （3） In equations (1) to (3): F A F B F C M0 is the force value of the pressure sensor; r is the mass of the rotating component; θ is the radius of the pressure sensor from point O; r0 is the unbalance angle from point O; Step 2.3: From equations (1) to (3), the unbalance angle θ and radius r0 of the rotating component can be obtained as follows: （4） （5）。 8. The balancing method for the rotating component according to claim 6, characterized in that, Step 3 specifically involves: The centrifugal force generated by the rotating component under dynamic conditions is: (6) The generated torque is: (7) The distances of the three pressure sensors (1) relative to point O are all projected onto the path. On the plane of the center of mass, with The direction away from point O is positive: The projected lever arm of point A is: (8) The projection lever arm of point B is: (9) The projection lever arm of point C is: (10) At this moment, the torque generated by the centrifugal force and the torque experienced by the pressure sensors bring the balancing system into a state of equilibrium in space, forming a spatial force system with the force application points of the three pressure sensors. Therefore: （11） The unbalance height h0 of the rotating component can then be calculated as follows: （12） In equations (6) to (12): F A F B F C θ is the force value of the pressure sensor; M0 is the mass of the rotating component; θ is the unbalance angle; r is the radius of the pressure sensor from point O; r0 is the radius of the unbalanced position from point O. The value is the rotational speed.

9. The balancing method for the rotating component according to claim 6, characterized in that, Step 4 specifically involves: Add a balancing block at the unbalance height h0. The balancing block Placed at the location opposite to the rotation center O, based on the unbalance angle θ calculated in step 2, and satisfying F in the static state. A =F B =F C There will be: ,Right now: （13） In equation (13): For balancing blocks The distance relative to the center of rotation O; M0 is the mass of the balancing block; M0 is the mass of the rotating component; r0 is the radius of the unbalanced position from point O. Then in the balancing position Add a balancing block at height h0. It can then be balanced.

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