CN112928870A - Control device and method capable of inhibiting resonance of direct-current brushless high-speed motor - Google Patents
Control device and method capable of inhibiting resonance of direct-current brushless high-speed motor Download PDFInfo
- Publication number
- CN112928870A CN112928870A CN202110165526.5A CN202110165526A CN112928870A CN 112928870 A CN112928870 A CN 112928870A CN 202110165526 A CN202110165526 A CN 202110165526A CN 112928870 A CN112928870 A CN 112928870A
- Authority
- CN
- China
- Prior art keywords
- adjusting
- resonance
- fixedly connected
- motor
- wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- 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
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
-
- 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
- H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
-
- 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
- H02K11/33—Drive circuits, e.g. power electronics
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/083—Structural association with bearings radially supporting the rotary shaft at both ends of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a control device and a method for inhibiting resonance of a direct current brushless high-speed motor, the control device comprises a motor main body, the motor main body comprises a motor shell, one end of the motor shell is fixedly connected with a front cover plate, the middle part of the front cover plate is fixedly provided with a first bearing, the inner wall of the first bearing is inserted and connected with a transmission shaft, the middle part of the inner wall of the motor shell is fixedly provided with a stator winding, one side of the middle part of the transmission shaft is fixedly provided with a permanent magnet rotor, the other side of the middle part of the transmission shaft is fixedly provided with a damping winding, the control device and the method for inhibiting resonance of the direct current brushless high-speed motor are provided, the control device and the method respectively adjust the bearing supporting position of the motor transmission shaft and the motor load by arranging a movable supporting mechanism and a load adjusting mechanism, and realize the adjustment of, avoid consistent with resonance frequency, realize the suppression to the resonance.
Description
Technical Field
The invention relates to a control device, in particular to a control device and a control method capable of inhibiting resonance of a direct-current brushless high-speed motor.
Background
For over a century, electric motors have been used as electromechanical energy conversion devices in various fields of national economy and in daily life of people. The main types of the motor are a synchronous motor, an asynchronous motor and a direct current motor. Because the traditional direct current motor adopts the electric brush to commutate by a mechanical method, relative mechanical friction exists, so the defects of noise, spark, radio interference, short service life and the like are brought, and the defects of high manufacturing cost, difficult maintenance and the like are added, so the application range of the direct current motor is greatly limited, and most of the current industrial and agricultural production adopts a three-phase asynchronous motor.
In view of the disadvantages of the conventional dc motor, after several decades of efforts, a dc brushless motor using electronic commutation instead of mechanical commutation of electric brush has been developed. The direct current brushless motor not only has a series of advantages of simple structure, reliable operation, convenient maintenance and the like of the alternating current motor, but also has the advantages of high operation efficiency, no excitation loss, good speed regulation performance and the like of the direct current motor, so the direct current brushless motor is increasingly popularized in various fields of national economy.
The harmonic waves are a series of sine waves, the frequency of the harmonic waves is integral multiple of the fundamental wave, and in the series of sine waves, countless frequency waves with different frequencies and different amplitudes exist, the sine waves can cause the sine current in a power system and the voltage of the power system to be asymmetrical, the service life of the motor is shortened, the harmonic waves generated by the circuit operation can cause the loss and the overheating of the motor and a transformer, and mechanical resonance, noise and continuous overhigh voltage can be generated, so that the control system is out of control. Therefore, in the field of direct current motor control, the resonance problem is more and more emphasized, and how to inhibit resonance is a hotspot of research in the field of direct current motor control.
Disclosure of Invention
The present invention aims to provide a control device and a method thereof capable of suppressing resonance of a direct current brushless high-speed motor, so as to solve the problems proposed in the background art: the existing brushless motor is influenced by resonance when in work, so that the loss and overheating of the motor and a transformer are caused, the service life of the motor is shortened, and the control system is out of control due to the fact that the mechanical structure is resonant, noise and voltage are continuously too high.
In order to achieve the purpose, the invention provides the following technical scheme:
a control device capable of inhibiting resonance of a direct-current brushless high-speed motor comprises a motor main body, wherein the motor main body comprises a motor shell, one end of the motor shell is fixedly connected with a front cover plate, a first bearing is fixedly installed in the middle of the front cover plate, a transmission shaft is connected with the inner wall of the first bearing in an inserting manner, a stator winding is fixedly installed in the middle of the inner wall of the motor shell, a permanent magnet rotor is fixedly installed on one side of the middle of the transmission shaft, a damping winding is fixedly installed on the other side of the middle of the transmission shaft, the stator winding comprises a silicon steel frame, the silicon steel frame comprises two silicon steel sheets which are oppositely arranged, a plurality of uniformly distributed connecting rods are fixedly connected between the two silicon steel sheets, a plurality of uniformly distributed separating sheets are fixedly arranged between the connecting rods, and enameled wire coils are wound in, the other end of the motor shell is in threaded connection with a rear cover plate, the control device further comprises an inner control unit and an outer control unit, the inner control unit is arranged inside the motor shell, the outer control unit is arranged outside the motor shell, and the inner control unit comprises a movable supporting mechanism and a load adjusting mechanism.
As a further scheme of the invention: the movable supporting mechanism comprises a sliding sleeve, the inner wall of the sliding sleeve is connected with a sliding sheet in a sliding mode, the inner wall of the sliding sheet is connected with an adjusting ring in a sliding mode, an adjusting tooth groove is formed in the inner wall of the adjusting ring, the inner wall of the adjusting ring is connected with a clamping plate in a clamping mode, the middle of the clamping plate is fixedly connected with a plurality of connecting rods distributed at equal intervals, adjusting gears are fixedly connected to the bottoms of the connecting rods, one sides of the adjusting gears are meshed with the inner wall of the tooth groove, a pushing plate is fixedly connected to the top of each connecting rod, one end of the pushing plate is provided with a mounting groove, and a pushing ball is; a plurality of evenly distributed's adjustment tank is seted up to one side of adjustable ring, a plurality of fixed slot is seted up to one side of joint board.
As a further scheme of the invention: the other end of the inner wall of the motor shell is fixedly connected with a bearing plate, the center of the bearing plate is fixedly connected with a second bearing, the inner wall of the second bearing is fixedly connected with one side of one end of the transmission shaft, the load adjusting mechanism comprises a load hanging box, the other side of one end of the transmission shaft is fixedly connected with the middle part of the load hanging box, the inner wall of the load hanging box is fixedly connected with a plurality of partition boards which are distributed at equal intervals, the plurality of partition boards divide the inner cavity of the load hanging box into a plurality of hanging cavities, the four side walls of the plurality of hanging cavities are fixedly connected with a plurality of clamping blocks, the bottoms of the inner walls of the plurality of hanging cavities are fixedly connected with inserting boards, the one end block of plugboard is connected with the load piece, a plurality of joint groove has been seted up to the outer wall of load piece, and the inner wall in a plurality of joint groove is connected with one side block of a plurality of joint piece respectively.
As a further scheme of the invention: the external control unit comprises a bearing table, an equipment box is fixedly mounted on one side of the top of the bearing table, a partition board is fixedly connected to one side of the inner wall of the equipment box and divides the internal space of the equipment box into an object placing cavity and an equipment cavity, a plurality of partition boards are fixedly connected to one side of each partition board and divide the equipment cavity into a plurality of placing cavities, a resonance detector, an alternating current filter and a resonance pole soft switching inverter are mounted on the inner walls of the three placing cavities respectively, the resonance detector, the alternating current filter and the resonance pole soft switching inverter are electrically connected with the motor main body, and an electromagnetic shielding board is embedded in the inner wall of each partition board; the bottom fixed mounting who puts thing intracavity wall has the support frame, the middle part fixedly connected with a plurality of riser of support frame inner wall, one side of equipment box articulates there is the chamber door, one side fixedly connected with handle of chamber door.
As a further scheme of the invention: the opposite side at plummer top and motor casing's bottom fixed connection, motor casing's top fixedly connected with a plurality of link, a plurality of the bottom of link all with plummer fixed connection.
As a further scheme of the invention: the inner control unit further comprises an adjusting piece, the adjusting piece comprises a fixed plate, two ends of one side of the fixed plate are fixedly connected with locking rods, an outer ring of the fixed plate is connected with an adjusting rotating plate in a clamping manner, two ends of one side of the adjusting rotating plate are fixedly connected with adjusting rods, and two ends of the other side of the adjusting rotating plate are fixedly connected with adjusting handles; the connecting groove has been seted up to front shroud one side, the outer lane block of connecting groove inner wall is connected with sealed the pad, the sealed piece of one side fixedly connected with a plurality of pad, a plurality of regulation mouth, a plurality of have been seted up to the bottom of connecting groove inner wall one side of sealed piece is connected with the inner wall block of a plurality of regulation mouth respectively.
The invention also provides a control method capable of inhibiting the resonance of the direct-current brushless high-speed motor, which comprises the following steps: comprises the following steps:
the method comprises the following steps: the high-frequency resonance wave in the circuit is filtered by the alternating-current filter, the operation of the driving switch is regulated by the resonance ultra-soft switching inverter, and the resonance condition of the motor main body during operation is monitored by the resonance detector, so that the resonance of the electronic circuit during the operation of the motor main body is inhibited;
step two: when the resonance detector detects that resonance is generated, the motor main body is closed, the mechanical resonance frequency of the motor main body is adjusted through the inner control unit, and the adjusting mode is as follows:
s1: separating the sealing block from the adjusting openings, taking down the sealing gasket, taking out the adjusting piece, enabling one ends of two fixed parts to penetrate through the two adjusting openings and to be clamped and fixed with the two fixed grooves, wiping the two adjusting rods through the two adjusting openings and clamping the two adjusting grooves, then driving the adjusting rotating plate to rotate by rotating the adjusting handle, driving the adjusting ring to rotate, further driving the adjusting gear and the abutting and pushing plate to rotate, enabling the abutting ball to be separated from the transmission shaft, pulling the adjusting piece, driving the adjusting ring and other structures to move to proper positions, then rotating the adjusting rotating plate again, enabling the abutting ball to be in contact with the transmission shaft and abutted tightly, enabling the whole adjusting piece to be separated from the movable supporting mechanism, and then clamping the sealing gasket with the connecting grooves again;
s2: opening the box door, taking out the load blocks from the support frame, opening the rear cover plate, mounting a plurality of load blocks in a plurality of hanging cavities at equal intervals, clamping the plug board and the load blocks, and then closing the rear cover plate;
step three: restarting the motor main body, observing whether the resonance detector detects resonance, repeating the step two if the resonance detector detects resonance, and enabling the motor main body to normally work until the resonance detector does not detect resonance any more
Compared with the prior art, the invention has the beneficial effects that: according to the control device capable of inhibiting the resonance of the direct-current brushless high-speed motor, the movable supporting mechanism and the load adjusting mechanism are arranged to adjust the bearing supporting position of the motor transmission shaft and the motor load respectively, so that the inherent mechanical resonance frequency of the motor main body is adjusted, the situation that the inherent mechanical resonance frequency is consistent with the resonance frequency is avoided, and the resonance is inhibited; by arranging the load hanging box and assembling the load blocks at equal intervals, the relative stability of the rotation inertia in each direction is kept when the motor main body rotates, and the stability of the motor is ensured; the support positions of the movable support mechanism and the transmission shaft can be adjusted by arranging mechanisms such as the adjusting piece, the adjusting port and the like, the motor does not need to be disassembled, and the adjustment is convenient and quick; by arranging mechanisms such as the connecting frame and the bearing table, the stable installation of the motor main body is realized, and the stability of the motor in the operation process is improved; through setting up mechanisms such as equipment box and baffler, realize the protection to devices such as alternating current filter, improve equipment's shock resistance and waterproof dustproof ability.
Drawings
FIG. 1 is a cross-sectional view of a motor body of a control device for suppressing resonance of a DC brushless high speed motor;
FIG. 2 is a perspective view of a control device for suppressing resonance of a DC brushless high speed motor;
FIG. 3 is a sectional view of an apparatus box of a control device for suppressing resonance of a DC brushless high speed motor;
FIG. 4 is a cross-sectional view of a control device load suspension box for suppressing DC brushless high speed motor resonance;
fig. 5 is a sectional view of an adjusting member of a control device for suppressing resonance of a dc brushless high speed motor.
In the figure: 1. a motor housing; 2. a front cover plate; 3. a first bearing; 4. a drive shaft; 5. a permanent magnet rotor; 6. a damping winding; 7. a silicon steel frame; 8. enameled wire coils; 9. a rear cover plate; 10. a sliding sleeve; 11. a slide sheet; 12. an adjusting ring; 13. a clamping and connecting plate; 14. a connecting rod; 15. an adjusting gear; 16. pushing the plate; 17. tightly supporting the ball; 18. a carrier plate; 19. a second bearing; 20. a load hanging box; 21. a partition plate; 22. a clamping block; 23. a plugboard; 24. a bearing table; 25. an equipment box; 26. a partition panel; 27. a barrier plate; 28. a resonance detector; 29. an AC filter; 30. a resonant very soft switching inverter; 31. a support frame; 32. a box door; 33. a connecting frame; 34. a fixing plate; 35. a locking lever; 36. adjusting the rotating plate; 37. a gasket; 38. and a load block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, in an embodiment of the present invention, a control device and method for suppressing resonance of a dc brushless high-speed motor includes a motor body, the motor body includes a motor housing 1, one end of the motor housing 1 is fixedly connected to a front cover plate 2, a first bearing 3 is fixedly installed at the middle of the front cover plate 2, a transmission shaft 4 is inserted into the inner wall of the first bearing 3, a stator winding is fixedly installed at the middle of the inner wall of the motor housing 1, a permanent magnet rotor 5 is fixedly installed at one side of the middle of the transmission shaft 4, a damping winding 6 is fixedly installed at the other side of the middle of the transmission shaft 4, the stator winding includes a silicon steel frame 7, the silicon steel frame 7 includes two silicon steel sheets oppositely disposed, a plurality of uniformly distributed connection rods 14 are fixedly connected between the two silicon steel sheets, a plurality of uniformly distributed separation sheets are, enameled wire coils 8 are wound at the middle parts of the connecting rods 14, a rear cover plate 9 is connected to the other end of the motor shell 1 in a threaded mode, the control device further comprises an inner control unit and an outer control unit, the inner control unit is arranged inside the motor shell 1, the outer control unit is arranged outside the motor shell 1, and the inner control unit comprises a movable supporting mechanism and a load adjusting mechanism; the bearing supporting position of the motor transmission shaft 4 and the motor load are respectively adjusted through the movable supporting mechanism and the load adjusting mechanism, so that the inherent mechanical resonance frequency of the motor main body is adjusted, the condition that the inherent mechanical resonance frequency is consistent with the resonance frequency is avoided, and the resonance is restrained.
The movable supporting mechanism comprises a sliding sleeve 10, the inner wall of the sliding sleeve 10 is connected with a sliding sheet 11 in a sliding mode, the inner wall of the sliding sheet 11 is connected with an adjusting ring 12 in a sliding mode, an adjusting tooth groove is formed in the inner wall of the adjusting ring 12, the inner wall of the adjusting ring 12 is connected with a clamping plate 13 in a clamping mode, the middle of the clamping plate 13 is fixedly connected with a plurality of connecting rods 14 which are distributed at equal intervals, the bottoms of the connecting rods 14 are fixedly connected with adjusting gears 15, one sides of the adjusting gears 15 are meshed with the inner wall of the tooth groove, the top of each connecting rod 14 is fixedly connected with a pushing plate 16, one end of each pushing plate 16; one side of the adjusting ring 12 is provided with a plurality of uniformly distributed adjusting grooves, and one side of the clamping plate 13 is provided with a plurality of fixing grooves; the stress supporting condition of the transmission shaft 4 is changed by adjusting the contact abutting position of the abutting ball 17 and the transmission shaft 4, so that the natural vibration frequency of the motor main body during working is changed.
The other end of the inner wall of the motor shell 1 is fixedly connected with a bearing plate 18, the center of the bearing plate 18 is fixedly connected with a second bearing 19, the inner wall of the second bearing 19 is fixedly connected with one side of one end of a transmission shaft 4, a load adjusting mechanism comprises a load hanging box 20, the other side of one end of the transmission shaft 4 is fixedly connected with the middle part of the load hanging box 20, the inner wall of the load hanging box 20 is fixedly connected with a plurality of partition plates 21 which are distributed at equal intervals, the internal cavity of the load hanging box 20 is divided into a plurality of hanging cavities by the plurality of partition plates 21, four side walls of the plurality of hanging cavities are fixedly connected with a plurality of clamping blocks 22, the bottoms of the inner walls of the plurality of hanging cavities are fixedly connected with a plug-in plate 23, one end of the plug-in plate 23 is clamped and connected with a load block 38, the outer wall of the load block 38 is; by arranging the load hanging box 20 and assembling the load blocks 38 at equal intervals in the load hanging box, the rotation inertia of the motor body in all directions is kept relatively stable when the motor body rotates, and the stability of the motor is ensured.
The external control unit comprises a bearing table 24, an equipment box 25 is fixedly mounted on one side of the top of the bearing table 24, an partition plate 26 is fixedly connected to one side of the inner wall of the equipment box 25, the partition plate 26 divides the internal space of the equipment box 25 into an object placing cavity and an equipment cavity, a plurality of partition plates 27 are fixedly connected to one side of the partition plate 26, the equipment cavity is divided into a plurality of placing cavities by the plurality of partition plates 26, a resonance detector 28, an alternating current filter 29 and a resonance pole soft switching inverter 30 are respectively mounted on the inner walls of the three placing cavities, the resonance detector 28, the alternating current filter 29 and the resonance pole soft switching inverter 30 are electrically connected with the motor main body, and an electromagnetic shielding plate is embedded in the inner wall of the partition; the bottom fixed mounting who puts the thing intracavity wall has support frame 31, the middle part fixedly connected with a plurality of riser of support frame 31 inner wall, one side of equipment box 25 articulates there is chamber door 32, one side fixedly connected with handle of chamber door 32, through setting up mechanisms such as equipment box 25 and baffler 27, the protection to devices such as AC filter 29 is realized, improve equipment's shock resistance and waterproof dustproof ability, through setting up the electromagnetic shield board, reduce the electromagnetic interference of each inside device of equipment box 25, above-mentioned electromagnetic shield board is the electrically conductive cotton board of bubble of EMI.
The other side of the top of the bearing table 24 is fixedly connected with the bottom of the motor shell 1, the top of the motor shell 1 is fixedly connected with a plurality of connecting frames 33, and the bottoms of the connecting frames 33 are fixedly connected with the bearing table 24; the motor main body is stably installed, and the stability of the motor in the operation process is improved.
The inner control unit further comprises an adjusting piece, the adjusting piece comprises a fixing plate 34, two ends of one side of the fixing plate 34 are fixedly connected with locking rods 35, an outer ring of the fixing plate 34 is connected with an adjusting rotating plate 36 in a clamping mode, two ends of one side of the adjusting rotating plate 36 are fixedly connected with adjusting rods, and two ends of the other side of the adjusting rotating plate 36 are fixedly connected with adjusting handles; one side of the front cover plate 2 is provided with a connecting groove, the outer ring of the inner wall of the connecting groove is clamped and connected with a sealing gasket 37, one side of the sealing gasket 37 is fixedly connected with a plurality of sealing blocks, the bottom of the inner wall of the connecting groove is provided with a plurality of adjusting openings, and one side of each sealing block is respectively clamped and connected with the inner wall of each adjusting opening; through setting up mechanisms such as regulating part and regulation mouth, realize the adjustment to activity supporting mechanism and 4 support positions of transmission shaft, need not to dismantle the motor, adjust convenient quick.
The invention also provides a control method capable of inhibiting the resonance of the direct-current brushless high-speed motor, which comprises the following steps:
the method comprises the following steps: the high-frequency resonance wave in the circuit is filtered by an alternating current filter 29, the operation of a driving switch is regulated by a resonance ultra-soft switching inverter 30, and the resonance condition of the motor main body during operation is monitored by a resonance detector 28, so that the resonance of an electronic circuit during the operation of the motor main body is suppressed;
step two: when the resonance detector 28 detects that resonance occurs, the motor main body is turned off, and the mechanical resonance frequency of the motor main body is adjusted through the internal control unit in the following manner:
s1: separating the sealing block from the adjusting openings, taking down the sealing gasket 37, taking out the adjusting piece, enabling one ends of two fixed parts to penetrate through the two adjusting openings and be clamped and fixed with the two fixed grooves, wiping the two adjusting rods through the two adjusting openings and clamping the two adjusting grooves, then driving the adjusting rotating plate 36 to rotate by rotating the adjusting handle, driving the adjusting ring 12 to rotate, further driving the adjusting gear 15 and the abutting pushing plate 16 to rotate, enabling the abutting ball 17 to be separated from the transmission shaft 4, pulling the adjusting piece, driving the adjusting ring 12 to move to a proper position and the like, then rotating the adjusting rotating plate 36 again, enabling the abutting ball 17 to be in contact with the transmission shaft 4 and abut tightly, enabling the whole adjusting piece to be separated from the movable supporting mechanism, and then clamping the sealing gasket 37 with the connecting grooves again;
s2: opening the box door 32, taking out the load blocks 38 from the support frame 31, opening the rear cover plate 9, mounting a plurality of load blocks 38 in a plurality of hanging cavities at equal intervals, clamping the plug board 23 with the load blocks 38, and then closing the rear cover plate 9;
step three: and restarting the motor main body, observing whether the resonance detector 28 detects resonance or not, and repeating the step two if the resonance is detected until the resonance detector 28 does not detect resonance any more and the motor main body works normally.
The resonance detector 28, the ac filter 29, and the resonant soft-switching inverter 30 are implemented by the prior art, and the motor housing is further provided therein with the common elements and structures of the existing brushless motor, such as the hall position sensor, to ensure the normal operation of the motor body.
When the invention is used, high-frequency resonance waves in the circuit are filtered by the alternating current filter 29, the operation of the driving switch is regulated by the resonance extremely-soft switching inverter 30, and the resonance condition of the motor main body during operation is monitored by the resonance detector 28, so that the resonance of an electronic circuit during the operation of the motor main body is inhibited;
when the resonance detector 28 detects that resonance occurs, the motor main body is turned off: firstly, separating a sealing block from an adjusting port, taking down a sealing gasket 37, taking out an adjusting piece, enabling one ends of two fixed devices to penetrate through two adjusting ports and be clamped and fixed with two fixed grooves, wiping two adjusting rods through the two adjusting ports and clamping with the two adjusting grooves, then driving an adjusting rotating plate 36 to rotate by rotating an adjusting handle, driving an adjusting ring 12 to rotate, further driving an adjusting gear 15 and a pushing plate 16 to rotate, enabling a resisting ball 17 to be separated from a transmission shaft 4, pulling the adjusting piece, driving structures such as the adjusting ring 12 to move to proper positions, then rotating the adjusting rotating plate 36 again, enabling the resisting ball 17 to be contacted with the transmission shaft 4 and be tightly contacted, enabling the whole adjusting piece to be separated from a movable supporting mechanism, and then clamping the sealing gasket 37 with a connecting groove again;
opening the box door 32, taking out the load blocks 38 from the support frame 31, opening the rear cover plate 9, mounting a plurality of load blocks 38 in a plurality of hanging cavities at equal intervals, aligning and clamping the clamping blocks 22 with the tie grooves, pushing the load blocks 38 to clamp the plug board 23 with the load blocks 38, and then closing the rear cover plate 9;
restarting the motor main body, observing whether the resonance detector 28 detects resonance, if the resonance is detected, turning off the motor again, repeating the above-mentioned adjusting operation, adjusting the positions of the mechanisms such as the adjusting ring 12 again, and increasing or decreasing the load blocks 38 on the premise of ensuring the symmetrical distribution of the load blocks 38 in the load hanging box 20 according to circumstances, realizing the adjustment of the inherent load of the motor main body, so as to change the resonance frequency of the motor main body, realizing the purpose of inhibiting resonance, repeating the adjusting operation, and when the resonance detector 28 no longer detects resonance, the motor main body works normally.
"fixedly connected" as described in the present invention means that two parts connected to each other are fixed together, typically by welding, screwing or gluing; "rotationally coupled" means that two components are coupled together and capable of relative motion.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (7)
1. A control device capable of inhibiting resonance of a direct-current brushless high-speed motor comprises a motor main body, wherein the motor main body comprises a motor shell (1), a front cover plate (2) is fixedly connected to one end of the motor shell (1), a first bearing (3) is fixedly mounted in the middle of the front cover plate (2), a transmission shaft (4) is connected to the inner wall of the first bearing (3) in an inserting mode, a stator winding is fixedly mounted in the middle of the inner wall of the motor shell (1), a permanent magnet rotor (5) is fixedly mounted on one side of the middle of the transmission shaft (4), a damping winding (6) is fixedly mounted on the other side of the middle of the transmission shaft (4), the control device is characterized in that the stator winding comprises a silicon steel frame (7), the silicon steel frame (7) comprises two oppositely arranged silicon steel sheets, and a plurality of uniformly distributed connecting rods (14) are, a plurality of fixed spacer that is provided with a plurality of evenly distributed between connecting rod (14), a plurality of enameled wire coil (8) have all been twined at the middle part of connecting rod (14), the other end threaded connection of motor casing (1) has back shroud (9), and this controlling means still includes interior control unit and outer control unit, interior control unit sets up inside motor casing (1), outer control unit sets up in motor casing (1) outside, interior control unit is including activity supporting mechanism and load adjustment mechanism.
2. The control device capable of suppressing the resonance of the direct current brushless high-speed motor according to claim 1, wherein the movable supporting mechanism comprises a sliding sleeve (10), a sliding sheet (11) is slidably connected to the inner wall of the sliding sleeve (10), an adjusting ring (12) is slidably connected to the inner wall of the sliding sheet (11), an adjusting tooth groove is formed in the inner wall of the adjusting ring (12), a clamping plate (13) is connected to the inner wall of the adjusting ring (12) in a clamping manner, a plurality of connecting rods (14) are fixedly connected to the middle of the clamping plate (13) at equal intervals, adjusting gears (15) are fixedly connected to the bottoms of the connecting rods (14), one side of the adjusting gears (15) is meshed with the inner wall of the tooth groove, a pushing plate (16) is fixedly connected to the top of the connecting rods (14), and a mounting groove is formed in one end of the pushing plate (16), the inner wall of the mounting groove is connected with a tightly-resisting ball (17) in a clamping manner; a plurality of evenly distributed adjusting grooves are formed in one side of the adjusting ring (12), and a plurality of fixing grooves are formed in one side of the clamping plate (13).
3. The control device capable of suppressing resonance of the DC brushless high-speed motor according to claim 1, wherein a bearing plate (18) is fixedly connected to the other end of the inner wall of the motor housing (1), a second bearing (19) is fixedly connected to the center of the bearing plate (18), the inner wall of the second bearing (19) is fixedly connected to one side of one end of the transmission shaft (4), the load adjusting mechanism comprises a load hanging box (20), the other side of one end of the transmission shaft (4) is fixedly connected to the middle of the load hanging box (20), a plurality of partition plates (21) are fixedly connected to the inner wall of the load hanging box (20) and are distributed at equal intervals, the plurality of partition plates (21) divide the internal cavity of the load hanging box (20) into a plurality of hanging cavities, and a plurality of clamping blocks (22) are fixedly connected to four side walls of the hanging cavities, the bottom of the hanging cavity inner wall is fixedly connected with a plugboard (23), one end of the plugboard (23) is connected with a load block (38) in a clamping mode, the outer wall of the load block (38) is provided with a plurality of clamping grooves, and the inner walls of the clamping grooves are connected with one side of a plurality of clamping blocks (22) in a clamping mode respectively.
4. The control device of claim 1, wherein the external control unit comprises a bearing platform (24), an equipment box (25) is fixedly installed on one side of the top of the bearing platform (24), a partition plate (26) is fixedly connected to one side of the inner wall of the equipment box (25), the partition plate (26) divides the internal space of the equipment box (25) into an object placing cavity and an equipment cavity, a plurality of partition plates (27) are fixedly connected to one side of the partition plate (26), the equipment cavity is divided into a plurality of placing cavities by the plurality of partition plates (26), a resonance detector (28), an alternating current filter (29) and a resonance extremely soft switching inverter (30) are respectively installed on the inner walls of the three placing cavities, and the resonance detector (28), the alternating current filter (29) and the resonance extremely soft switching inverter (30) are all electrically connected with the motor body, an electromagnetic shielding plate is embedded in the inner wall of the partition plate (26); the bottom fixed mounting who puts the thing intracavity wall has support frame (31), the middle part fixedly connected with a plurality of riser of support frame (31) inner wall, one side of equipment box (25) articulates there is chamber door (32), one side fixedly connected with handle of chamber door (32).
5. The control device for suppressing the resonance of the DC brushless high-speed motor according to claim 4, wherein the other side of the top of the bearing platform (24) is fixedly connected with the bottom of the motor housing (1), a plurality of connecting frames (33) are fixedly connected with the top of the motor housing (1), and the bottoms of the connecting frames (33) are fixedly connected with the bearing platform (24).
6. The control device capable of suppressing the resonance of the dc brushless high speed motor according to claim 1, wherein the inner control unit further comprises an adjusting member, the adjusting member comprises a fixing plate (34), both ends of one side of the fixing plate (34) are fixedly connected with a locking rod (35), an outer ring of the fixing plate (34) is connected with an adjusting rotating plate (36) in a clamping manner, both ends of one side of the adjusting rotating plate (36) are fixedly connected with adjusting rods, and both ends of the other side of the adjusting rotating plate (36) are fixedly connected with adjusting handles; the spread groove has been seted up to front shroud (2) one side, the outer lane block of spread groove inner wall is connected with sealed pad (37), the sealed piece of one side fixedly connected with a plurality of sealed pad (37), a plurality of regulation mouth, a plurality of have been seted up to the bottom of spread groove inner wall one side of sealed piece is connected with the inner wall block of a plurality of regulation mouth respectively.
7. A control method capable of inhibiting resonance of a direct current brushless high-speed motor is characterized by comprising the following steps:
the method comprises the following steps: high-frequency resonance waves in the circuit are filtered by an alternating current filter (29), the operation of a driving switch is regulated by a resonance ultra-soft switching inverter (30), and the resonance condition of the motor main body during operation is monitored by a resonance detector (28), so that the resonance of an electronic circuit during the operation of the motor main body is suppressed;
step two: when the resonance detector (28) detects that resonance is generated, the motor main body is closed, and the mechanical resonance frequency of the motor main body is adjusted through the internal control unit in the following manner:
s1: separating the sealing block from the adjusting port, taking down the sealing gasket (37), taking out the adjusting piece, enabling one ends of two fixed devices to penetrate through the two adjusting ports and be clamped and fixed with the two fixed grooves, wiping the two adjusting rods through the two adjusting ports and clamping the two adjusting grooves, then driving the adjusting rotating plate (36) to rotate by rotating the adjusting handle, driving the adjusting ring (12) to rotate, further driving the adjusting gear (15) and the abutting and pushing plate (16) to rotate, enabling the abutting ball (17) to be separated from the transmission shaft (4), pulling the adjusting piece, driving the adjusting ring (12) and other structures to move to proper positions, then rotating the adjusting rotating plate (36) again, enabling the abutting ball (17) to be in contact with the transmission shaft (4) and abutting, enabling the adjusting piece to be separated from the movable supporting mechanism integrally, and then clamping the sealing gasket (37) with the connecting groove again;
s2: opening the box door (32), taking out the load blocks (38) from the support frame (31), opening the rear cover plate (9), mounting a plurality of load blocks (38) in a plurality of hanging cavities at equal intervals, clamping the plug board (23) with the load blocks (38), and then closing the rear cover plate (9);
step three: and restarting the motor main body, observing whether the resonance detector (28) detects resonance or not, and repeating the step two if the resonance is detected until the resonance detector (28) does not detect resonance any more and the motor main body works normally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110165526.5A CN112928870B (en) | 2021-02-06 | 2021-02-06 | Control device and method capable of inhibiting resonance of direct-current brushless high-speed motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110165526.5A CN112928870B (en) | 2021-02-06 | 2021-02-06 | Control device and method capable of inhibiting resonance of direct-current brushless high-speed motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112928870A true CN112928870A (en) | 2021-06-08 |
| CN112928870B CN112928870B (en) | 2021-10-29 |
Family
ID=76170967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110165526.5A Active CN112928870B (en) | 2021-02-06 | 2021-02-06 | Control device and method capable of inhibiting resonance of direct-current brushless high-speed motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112928870B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922558A (en) * | 2021-10-12 | 2022-01-11 | 扬州市华天电机有限公司 | High-abrasion-resistance rotary sealing structure of single-phase permanent magnet alternating current motor |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201054539Y (en) * | 2007-07-09 | 2008-04-30 | 王学信 | DC brushless energy-saving electromotor |
| CN104426289A (en) * | 2013-09-10 | 2015-03-18 | 东芝三菱电机产业系统株式会社 | Rotary Motor |
| CN205791988U (en) * | 2016-05-27 | 2016-12-07 | 慈溪市华夏电器实业有限公司 | Anti-resonance reducing motor |
| WO2017100870A1 (en) * | 2015-12-14 | 2017-06-22 | Weg Equipamentos Elétricos S/A | Controllable dynamic vibration neutraliser for rotary electric machines and systems including rotary electric machines |
| CN109038928A (en) * | 2018-08-07 | 2018-12-18 | 襄阳世阳电机有限公司 | A kind of anti-vibration threephase asynchronous |
| JP2019110613A (en) * | 2017-12-15 | 2019-07-04 | 株式会社日立製作所 | Rotary electric machine and vibration suppression method thereof |
| CN110048581A (en) * | 2019-05-25 | 2019-07-23 | 马闪 | A kind of stepper motor preventing eccentric operating |
| CN110784061A (en) * | 2019-10-29 | 2020-02-11 | 黎泽辉 | New energy automobile motor with resonance elimination function |
| WO2020059691A1 (en) * | 2018-09-19 | 2020-03-26 | 日本電産株式会社 | Motor, electric power steering device, and device having vibration source |
| CN111396504A (en) * | 2020-03-17 | 2020-07-10 | 珠海格力电器股份有限公司 | Rotor structure and servo motor |
-
2021
- 2021-02-06 CN CN202110165526.5A patent/CN112928870B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201054539Y (en) * | 2007-07-09 | 2008-04-30 | 王学信 | DC brushless energy-saving electromotor |
| CN104426289A (en) * | 2013-09-10 | 2015-03-18 | 东芝三菱电机产业系统株式会社 | Rotary Motor |
| WO2017100870A1 (en) * | 2015-12-14 | 2017-06-22 | Weg Equipamentos Elétricos S/A | Controllable dynamic vibration neutraliser for rotary electric machines and systems including rotary electric machines |
| CN205791988U (en) * | 2016-05-27 | 2016-12-07 | 慈溪市华夏电器实业有限公司 | Anti-resonance reducing motor |
| JP2019110613A (en) * | 2017-12-15 | 2019-07-04 | 株式会社日立製作所 | Rotary electric machine and vibration suppression method thereof |
| CN109038928A (en) * | 2018-08-07 | 2018-12-18 | 襄阳世阳电机有限公司 | A kind of anti-vibration threephase asynchronous |
| WO2020059691A1 (en) * | 2018-09-19 | 2020-03-26 | 日本電産株式会社 | Motor, electric power steering device, and device having vibration source |
| CN110048581A (en) * | 2019-05-25 | 2019-07-23 | 马闪 | A kind of stepper motor preventing eccentric operating |
| CN110784061A (en) * | 2019-10-29 | 2020-02-11 | 黎泽辉 | New energy automobile motor with resonance elimination function |
| CN111396504A (en) * | 2020-03-17 | 2020-07-10 | 珠海格力电器股份有限公司 | Rotor structure and servo motor |
Non-Patent Citations (1)
| Title |
|---|
| 李建军: ""无刷直流电动机噪声分析及其抑制"", 《微特电机》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113922558A (en) * | 2021-10-12 | 2022-01-11 | 扬州市华天电机有限公司 | High-abrasion-resistance rotary sealing structure of single-phase permanent magnet alternating current motor |
| CN113922558B (en) * | 2021-10-12 | 2022-12-09 | 扬州市华天电机有限公司 | High-abrasion-resistance rotary sealing structure of single-phase permanent magnet alternating current motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112928870B (en) | 2021-10-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112928870B (en) | Control device and method capable of inhibiting resonance of direct-current brushless high-speed motor | |
| CN106451987A (en) | Single-phase brushless high-speed motor | |
| US7518280B2 (en) | Method and system for selectively operating an electric motor | |
| WO2021025366A1 (en) | Permanent magnet synchronous motor and hermetic compressor using same | |
| WO2022042686A1 (en) | Brushless direct-current motor | |
| CN108988562A (en) | A kind of Double shaft-extension brushless external rotor motor | |
| CN108288938B (en) | Compressor and refrigeration equipment | |
| CN115940559A (en) | Stator offset type doubly salient permanent magnet motor | |
| JP7304971B2 (en) | Brushless motors and electrical equipment | |
| CN215911971U (en) | Asynchronous explosion-proof motor of interchange that stability is good | |
| CN217307363U (en) | Permanent magnet motor rotor for asynchronous motor | |
| CN213213206U (en) | Skeleton frame assembly for high-efficiency fan shaded pole motor of household appliance | |
| CN216312809U (en) | Tubular permanent magnet motor | |
| CN217216402U (en) | Multi-speed control EC motor with high energy efficiency and without position sensor | |
| CN217362795U (en) | Symmetrical single-phase asynchronous motor | |
| CN218416068U (en) | Motor casing with insulating mechanism | |
| CN211239472U (en) | High-efficiency permanent magnet rotor manufactured precisely | |
| CN216290622U (en) | Hall assembly structure of permanent magnet motor | |
| CN219351503U (en) | High-frequency vibration motor for toothbrush | |
| CN216751391U (en) | Energy-efficient PMSM convenient to overhaul | |
| CN218449642U (en) | Low-voltage direct-current speed-regulating mute brushless motor | |
| CN215580920U (en) | Transformer rectifier easy to assemble | |
| US20230421007A1 (en) | Double air gap-type surface permanent magnet synchronous motor provided with non-magnetic shielding member | |
| US20240006970A1 (en) | Double air gap-type surface permanent magnet synchronous motor provided with double controllers | |
| CN219227308U (en) | Water-cooling synchronous reluctance motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Control Device and Method for Restraining Resonance of DC Brushless High Speed Motor Effective date of registration: 20221206 Granted publication date: 20211029 Pledgee: Shenzhen SME financing Company limited by guarantee Pledgor: SHENZHEN INTELTRON INTELLIGENT SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2022980025253 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |