CN115333314A - Motor rotor capable of efficiently adjusting dynamic balance and dynamic balance adjusting method - Google Patents
Motor rotor capable of efficiently adjusting dynamic balance and dynamic balance adjusting method Download PDFInfo
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- CN115333314A CN115333314A CN202211147753.6A CN202211147753A CN115333314A CN 115333314 A CN115333314 A CN 115333314A CN 202211147753 A CN202211147753 A CN 202211147753A CN 115333314 A CN115333314 A CN 115333314A
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- dynamic balance
- adjustment
- motor
- adjusting module
- acceleration sensor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
- H02K15/165—Balancing the rotor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/02—Connections between slip-rings and windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a motor rotor for efficiently adjusting dynamic balance and a dynamic balance adjusting method, wherein a rotor body is provided with a plurality of dynamic balance adjusting modules; the dynamic balance adjusting module is annular, a rotating shaft hole is reserved in the center, a plurality of outer ring deformation cavities which are arranged at equal intervals are arranged on an outer ring close to the outer edge in the dynamic balance adjusting module, and a plurality of inner ring deformation cavities which are arranged at equal intervals are arranged on an inner ring; the adjacent outer ring deformation cavities and the adjacent inner ring deformation cavities are connected into a ring shape through a pipeline with an electromagnetic valve; heating resistors are respectively arranged outside each outer ring deformation cavity and each inner ring deformation cavity; liquid is filled in the outer ring deformation cavity, the inner ring deformation cavity and the pipeline; and an acceleration sensor, a control circuit and a conductive slip ring are also arranged in the dynamic balance adjusting module. The invention has high automation degree, obviously improves the working efficiency and can reduce the experience requirements of workers; the liquid is used as a mass balancing object, so that the adjusting precision is higher; the electromagnetic valve is arranged as a locking mechanism of the mass balancing object, so that the dynamic balance state can be maintained after balancing.
Description
Technical Field
The invention belongs to the technical field of motor rotors, and particularly relates to a motor rotor capable of efficiently adjusting dynamic balance and a dynamic balance adjusting method.
Background
The rotor of an electric machine is a general term for the rotating part of the electric machine, and the factors causing the unbalance of the rotor are many, such as: the unevenness of rotor material, the unbalance of shaft coupling, the asymmetry of keyway, rotor machining error, the corrosion, wearing and tearing and heat altered shape etc. that the rotor produced in the motion process. The unbalance amount caused by these factors is generally random and cannot be calculated, and needs to be measured and corrected through a gravity test (static balance) and a rotation test (dynamic balance) so as to be reduced to an allowable range.
The rotor dynamic balance is essentially to refill (cut down) the corresponding mass at the position where there is no (excess) mass, which involves two main variables, one being how much mass and one being at what position. When the existing rotor is subjected to dynamic balance test and balance, a balancing module is generally manufactured according to dynamic balance test data, then the balancing module is connected or bonded on a certain position of a motor rotor through a bolt, then the dynamic balance test is carried out to check whether the quality and the position of the manufactured balancing module meet the requirements, and if the quality and the position of the balancing module do not meet the requirements, the quality of the balancing module or the position of the motor rotor is adjusted until the quality and the position of the motor rotor meet the requirements. Thus, there are the following problems: 1. the automation degree is low, the working efficiency is low, and time and labor are wasted; 2. the requirement on the experience of workers is high.
Disclosure of Invention
The invention aims to solve the problems and provides the motor rotor capable of efficiently adjusting the dynamic balance and the dynamic balance adjusting method, the degree of automation is high, the work efficiency is obviously improved, and the experience requirements of workers can be reduced.
The technical scheme of the invention is realized in such a way.
The utility model provides a high-efficient motor rotor who adjusts dynamic balance which characterized in that: the rotor body is provided with a plurality of dynamic balance adjusting modules; the dynamic balance adjusting module is annular, a rotating shaft hole is reserved in the center of the dynamic balance adjusting module, a plurality of outer ring deformation cavities which are arranged at equal intervals are arranged on an outer ring close to the outer edge in the dynamic balance adjusting module, and a plurality of inner ring deformation cavities which are arranged at equal intervals are arranged on an inner ring close to the outer edge in the dynamic balance adjusting module; the adjacent outer ring deformation cavities and the adjacent inner ring deformation cavities are connected into a ring shape through a pipeline with an electromagnetic valve; heating resistors are respectively arranged outside each outer ring deformation cavity and each inner ring deformation cavity, and the heating resistors heat the outer ring deformation cavities and the inner ring deformation cavities to enable the deformation cavities to generate larger cavity volumes due to the temperature effect; liquid is filled in the outer ring deformation cavity, the inner ring deformation cavity and the pipeline; the dynamic balance adjusting module is internally provided with an acceleration sensor, a control circuit and a conductive slip ring, wherein the control circuit is respectively connected with each electromagnetic valve, the heating resistor and the acceleration sensor and controls the opening or closing of each electromagnetic valve and the heating state of the heating resistor; and the control circuit is connected with a power supply and a signal acquisition box outside the dynamic balance adjustment module through a conductive slip ring.
Furthermore, the acceleration sensor evenly sets up 4 with the axial lead of rotor body as the center, and every acceleration sensor all is one-way acceleration sensor, and 4 adjacent two of acceleration sensor divide into two sets for a set of altogether, and every acceleration sensor of group measures the acceleration data that each other is two perpendicular coordinate axis X and Y directions respectively, and two sets of acceleration sensors are each other backups to sensor data measurement accuracy has been improved.
Further, the computer and the data recorder are connected with the control circuit through a signal acquisition box, and are used for displaying and storing the data of the acceleration sensor and the state data of the electromagnetic valve and the heating resistor.
Further, the power supply is a storage battery arranged in the motor or a power supply end connected to a motor driving circuit.
The dynamic balance adjusting method for the motor rotor capable of efficiently adjusting dynamic balance comprises the following steps:
s1, mounting a dynamic balance adjusting module on a motor rotor body, connecting a power supply, a signal acquisition box, a computer and a data recorder which are externally connected through a conductive slip ring in the dynamic balance adjusting module, and then mounting a motor on a fixed base;
s2, electrifying a control circuit of the dynamic balance adjusting module, starting to record data, processing the data, and transmitting the data back to the computer and the data recorder;
s3, starting the motor to enable the motor to continuously rotate according to the specified rotating speed;
s4, starting to execute deformation of the deformation cavity and open dynamic balance adjustment action of the electromagnetic valve by a control circuit in the dynamic balance adjustment module according to a preset algorithm according to the calculated value of the acceleration sensor; if the adjustment is one-time dynamic balance adjustment, executing S5-S7; if the adjustment is continuous dynamic balance adjustment, executing S8-S10;
s5, in the process of adjusting the continuous movement of the rotor, the control circuit evaluates and adjusts the value obtained and calculated in real time according to the acceleration sensor, the adjusting action is continued until the dynamic balance value meets the range of product requirements, and the adjusting action is stopped;
s6, after the dynamic balance adjustment is finished, locking the adjusted quality balancing object liquid by the electromagnetic valve;
s7, stopping the motor from rotating, then powering off the dynamic balance adjusting module, and finishing the dynamic balance adjustment;
s8, after the motor formally starts to work and operate, in the continuous motion adjustment process, the control circuit carries out evaluation adjustment according to the numerical value obtained and calculated by the acceleration sensor in real time, the adjustment action is continued until the dynamic balance numerical value meets the range of product requirements, and the adjustment action is stopped;
s9, after the dynamic balance adjustment is finished, keeping the position of the mass balancing object still until the working state changes, the dynamic balance of the motor rotor assembly body is influenced due to the influence of the external working environment or the change of the load arranged on the motor, and readjusting the position of the mass balancing object by the dynamic balance adjustment module according to the value fed back by the sensor until the dynamic balance requirement is met;
and S10, stopping the motor from rotating, and then powering off the dynamic balance adjusting module.
The principle of the invention is as follows: the dynamic balance adjusting module is internally provided with an outer ring deformation cavity and an inner ring deformation cavity which are respectively connected into a ring through pipelines, the pipelines are provided with electromagnetic valves, heating resistors are respectively arranged outside the outer ring deformation cavity and the inner ring deformation cavity, amplification of a certain or some deformation cavities is controlled through the heating resistors, and along with amplification of the deformation cavities, liquid inside the adjacent deformation cavities flows in, so that the quality distribution is adjusted, and the purpose of adjusting dynamic balance is achieved.
The invention has the beneficial effects that: 1. the invention changes the volume of the deformable cavity through the heating resistor, thereby adjusting the amount of liquid in the deformable cavity to adjust the mass distribution of the liquid, achieving the aim of dynamic balance adjustment, having high automation degree, obviously improving the working efficiency and reducing the experience requirements of workers. 2. Liquid is used as a mass balancing object, dynamic balance is adjusted through the distribution position of the liquid, and the adjusting precision is higher. 3. The electromagnetic valve is arranged as a liquid locking mechanism, so that a dynamic balance state can be maintained conveniently after balancing.
Drawings
Fig. 1 is an overall structural view of a motor rotor for efficiently adjusting dynamic balance according to the present invention.
Fig. 2 is a schematic diagram of an internal structure of a dynamic balance adjustment module of a motor rotor for efficiently adjusting dynamic balance according to the present invention.
Fig. 3 is a partially enlarged view of fig. 2.
Fig. 4 is a schematic circuit structure diagram of the dynamic balance adjustment module of the motor rotor for efficiently adjusting dynamic balance according to the present invention.
Fig. 5 is a flowchart of a dynamic balance adjusting method of a motor rotor for efficiently adjusting dynamic balance according to the present invention.
In the figure, the rotor comprises a rotor body 1, a dynamic balance adjusting module 21, an outer ring deformation cavity 22, an inner ring deformation cavity 23, a pipeline 24, an electromagnetic valve 25, a heating resistor 26, a rotating shaft hole 27, an acceleration sensor 28, liquid 29, a control circuit 210, a conductive slip ring 3, a power supply source 4, a signal acquisition box 5, a computer and a data recorder.
Detailed Description
The technical solution of the present invention will be further described in detail by the following examples and the drawings attached to the specification.
As shown in fig. 1-4, a motor rotor for efficiently adjusting dynamic balance, wherein a dynamic balance adjusting module 2 is respectively installed at the upper end and the lower end of a rotor body 1; the dynamic balance adjusting module 2 is annular, a rotating shaft hole 26 is reserved in the center, 36 outer ring deformation cavities 21 which are arranged at equal intervals are arranged on an outer ring close to the outer edge in the dynamic balance adjusting module 2, and 36 inner ring deformation cavities 22 which are arranged at equal intervals are arranged on an inner ring close to the outer edge in the dynamic balance adjusting module; the adjacent outer ring deformation cavities 21 and the adjacent inner ring deformation cavities 22 are connected into a ring shape through a pipeline 23 with an electromagnetic valve 24; a heating resistor 25 is respectively arranged outside each outer ring deformation cavity 21 and each inner ring deformation cavity 22, and the heating resistor 25 heats the outer ring deformation cavity 21 and the inner ring deformation cavity 22 to enable the deformation cavities to generate larger cavity volumes due to the temperature effect; the outer ring deformation cavity 21, the inner ring deformation cavity 22 and the pipeline 23 are filled with liquid 28; the dynamic balance adjusting module 2 is also internally provided with an acceleration sensor 27, a control circuit 29 and a conductive slip ring 210, wherein the control circuit 29 is respectively connected with each electromagnetic valve 24, the heating resistor 25 and the acceleration sensor 27 and controls the opening or closing of each electromagnetic valve 24 and the heating state of the heating resistor 25; the control circuit 29 is connected with the power supply 3 and the signal acquisition box 4 outside the dynamic balance adjustment module 2 through the conductive slip ring 210.
As shown in fig. 3, the outer ring deformation cavity 21 in the dynamic balance adjustment module 2 is in an open state at the electromagnetic valve 24 on the pipeline 23, the volume of the outer ring deformation cavity 21 becomes larger when the outer ring deformation cavity 21 is in a heating state by the heating resistor 25, the outer ring deformation cavity 21 is changed from a solid line state to a dotted line state in fig. 3, the volume of the outer ring deformation cavity 21 becomes larger, and the liquid 28 flows to the deformation cavity 21 with the larger volume, so that the position distribution of the liquid 28 in the dynamic balance adjustment module 2 is changed, and the purpose of dynamic balance adjustment is achieved. After the dynamic balance adjustment is completed, the position distribution state of the liquid 28 is maintained by switching the solenoid valve 24 on the line 23 to a closed state.
The acceleration sensors 27 are evenly provided with 4 acceleration sensors by taking the axial lead of the rotor body 1 as the center, each acceleration sensor 27 is a one-way acceleration sensor, two adjacent acceleration sensors 27 are divided into two groups, each acceleration sensor measures acceleration data in two perpendicular coordinate axes X and Y directions respectively, the two acceleration sensors are backups of each other, and the data measurement accuracy of the sensors is improved.
The computer and data recorder 5 is connected with the control circuit 29 through the signal acquisition box 4, and displays and stores the data of the acceleration sensor and the state data of the electromagnetic valve and the heating resistor.
The power supply 3 is a storage battery arranged in the motor or is connected to a power end of a motor driving circuit.
As shown in fig. 5, the dynamic balance adjusting method for the motor rotor capable of efficiently adjusting dynamic balance includes the following steps:
s1, mounting a dynamic balance adjusting module 2 on a motor rotor body 1, connecting an external power supply 3, a signal acquisition box 4, a computer and a data recorder 5 through a conductive slip ring 210 in the dynamic balance adjusting module 2, and then mounting a motor on a fixed base;
s2, electrifying the control circuit 29 of the dynamic balance adjustment module 2, starting to record data, processing the data, and transmitting the data back to the computer and the data recorder 5;
s3, starting the motor to enable the motor to continuously rotate according to the specified rotating speed;
s4, the control circuit 29 in the dynamic balance adjusting module starts to execute the deformation of the outer ring deformation cavity 21 and the inner ring deformation cavity 22 and the dynamic balance adjusting action of opening the electromagnetic valve 24 according to the calculation value of the acceleration sensor and a preset algorithm; if the adjustment is one-time dynamic balance adjustment, executing S5-S7; if the adjustment is continuous dynamic balance adjustment, executing S8-S10;
s5, in the process of adjusting the continuous motion of the rotor, the control circuit 29 evaluates and adjusts the value obtained and calculated in real time according to the acceleration sensor 27, and the adjustment action is continued until the dynamic balance value meets the range of product requirements, and the adjustment action is stopped;
s6, after the dynamic balance adjustment is finished, the electromagnetic valve 24 locks the adjusted mass balancing object (liquid 28);
s7, stopping rotating the motor, then powering off the dynamic balance adjusting module, and finishing dynamic balance adjustment;
s8, after the motor formally starts to work and operate, in the continuous motion adjustment process, the control circuit 29 evaluates and adjusts the values obtained and calculated in real time according to the acceleration sensor, and the adjustment action is continued until the dynamic balance value meets the range of product requirements, and the adjustment action is stopped;
s9, after the dynamic balance adjustment is finished, keeping the position of the mass balancing object still until the working state changes, the dynamic balance of the motor rotor assembly body is influenced due to the influence of the external working environment or the change of the load arranged on the motor, and readjusting the position of the mass balancing object by the dynamic balance adjustment module according to the value fed back by the sensor until the dynamic balance requirement is met;
and S10, stopping the motor from rotating, and then powering off the dynamic balance adjusting module.
Like the power motor who uses under car platform, unmanned vehicles platform all is after directly installing the load, and load itself can not change because of operational environment and operating condition, and this kind just only does disposable dynamic balance adjustment action. In some scenes, such as a mechanical arm, a holder motor, a robot driving motor and the like, the motor needs to drive the load and the situation that the dynamic balance is changed due to the change of the motion per se when the load is changed along with the time, so that continuous real-time dynamic balance adjustment needs to be performed.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a high-efficient motor rotor who adjusts dynamic balance which characterized in that: the rotor body is provided with a plurality of dynamic balance adjusting modules; the dynamic balance adjusting module is annular, a rotating shaft hole is reserved in the center of the dynamic balance adjusting module, a plurality of outer ring deformation cavities which are arranged at equal intervals are arranged on an outer ring close to the outer edge in the dynamic balance adjusting module, and a plurality of inner ring deformation cavities which are arranged at equal intervals are arranged on an inner ring close to the outer edge in the dynamic balance adjusting module; the adjacent outer ring deformation cavities and the adjacent inner ring deformation cavities are connected into a ring shape through a pipeline with an electromagnetic valve; heating resistors are respectively arranged outside each outer ring deformation cavity and each inner ring deformation cavity, and the heating resistors heat the outer ring deformation cavities and the inner ring deformation cavities to enable the deformation cavities to generate larger cavity volumes due to the temperature effect; liquid is filled in the outer ring deformation cavity, the inner ring deformation cavity and the pipeline; the dynamic balance adjusting module is internally provided with an acceleration sensor, a control circuit and a conductive slip ring, wherein the control circuit is respectively connected with each electromagnetic valve, the heating resistor and the acceleration sensor and controls the opening or closing of each electromagnetic valve and the heating state of the heating resistor; and the control circuit is connected with a power supply and a signal acquisition box outside the dynamic balance adjustment module through a conductive slip ring.
2. The rotor of an electric machine for high efficiency adjustment of dynamic balance as set forth in claim 1, wherein: the four-axis acceleration sensor comprises a rotor body, wherein the number of the acceleration sensors is 4, each acceleration sensor is a one-way acceleration sensor, two adjacent acceleration sensors are divided into two groups, each acceleration sensor measures acceleration data in the X and Y directions of two coordinate axes which are perpendicular to each other, and the two acceleration sensors are backup to each other.
3. The rotor of an electric machine for high efficiency adjustment of dynamic balance as set forth in claim 1, wherein: the computer and the data recorder are connected with the control circuit through the signal acquisition box, and are used for displaying and storing the data of the acceleration sensor and the state data of the electromagnetic valve and the heating resistor.
4. The rotor of an electric machine for high efficiency adjustment of dynamic balance as set forth in claim 1, wherein: the power supply is a storage battery arranged in the motor or is connected to a power end of the motor driving circuit.
5. The dynamic balance adjusting method for the motor rotor capable of efficiently adjusting the dynamic balance is characterized by comprising the following steps of:
s1, mounting a dynamic balance adjusting module on a motor rotor body, connecting a power supply, a signal acquisition box, a computer and a data recorder which are externally connected through a conductive slip ring in the dynamic balance adjusting module, and then mounting a motor on a fixed base;
s2, electrifying a control circuit of the dynamic balance adjusting module, starting to record data, processing the data, and transmitting the data back to the computer and the data recorder;
s3, starting the motor to enable the motor to continuously rotate according to the specified rotating speed;
s4, a control circuit in the dynamic balance adjusting module starts to execute deformation of the deformation cavity and adjust dynamic balance action of opening the electromagnetic valve according to a preset algorithm according to the calculated value of the acceleration sensor; if the adjustment is one-time dynamic balance adjustment, executing S5-S7; if the adjustment is continuous dynamic balance adjustment, executing S8-S10;
s5, in the process of adjusting the continuous movement of the rotor, the control circuit evaluates and adjusts the value obtained and calculated in real time according to the acceleration sensor, the adjusting action is continued until the dynamic balance value meets the range of product requirements, and the adjusting action is stopped;
s6, after the dynamic balance adjustment is finished, locking the adjusted quality balancing object liquid by the electromagnetic valve;
s7, stopping rotating the motor, then powering off the dynamic balance adjusting module, and finishing dynamic balance adjustment;
s8, after the motor formally starts to work and operate, in the continuous motion adjustment process, the control circuit carries out evaluation adjustment according to the numerical value obtained and calculated by the acceleration sensor in real time, the adjustment action is continued until the dynamic balance numerical value meets the range of product requirements, and the adjustment action is stopped;
s9, after the dynamic balance adjustment is finished, keeping the position of the mass balancing object still until the working state changes, the dynamic balance of the motor rotor assembly body is influenced due to the influence of the external working environment or the change of the load arranged on the motor, and readjusting the position of the mass balancing object by the dynamic balance adjustment module according to the value fed back by the sensor until the dynamic balance requirement is met;
and S10, stopping the motor from rotating, and then powering off the dynamic balance adjusting module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211147753.6A CN115333314A (en) | 2022-09-21 | 2022-09-21 | Motor rotor capable of efficiently adjusting dynamic balance and dynamic balance adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211147753.6A CN115333314A (en) | 2022-09-21 | 2022-09-21 | Motor rotor capable of efficiently adjusting dynamic balance and dynamic balance adjusting method |
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| CN115333314A true CN115333314A (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211147753.6A Pending CN115333314A (en) | 2022-09-21 | 2022-09-21 | Motor rotor capable of efficiently adjusting dynamic balance and dynamic balance adjusting method |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11169595A (en) * | 1997-12-15 | 1999-06-29 | Inamoto Seisakusho:Kk | Device for adjusting balance of spinning drum |
| CN102313626A (en) * | 2011-03-28 | 2012-01-11 | 中国计量学院 | Online dynamic balance head of liquid type high-speed rotor and technological embodiment thereof |
| CN112117875A (en) * | 2020-10-19 | 2020-12-22 | 长春工业大学 | Novel liquid type rotor dynamic balance head structure |
-
2022
- 2022-09-21 CN CN202211147753.6A patent/CN115333314A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11169595A (en) * | 1997-12-15 | 1999-06-29 | Inamoto Seisakusho:Kk | Device for adjusting balance of spinning drum |
| CN102313626A (en) * | 2011-03-28 | 2012-01-11 | 中国计量学院 | Online dynamic balance head of liquid type high-speed rotor and technological embodiment thereof |
| CN112117875A (en) * | 2020-10-19 | 2020-12-22 | 长春工业大学 | Novel liquid type rotor dynamic balance head structure |
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