CN116388461A - Integrated braking permanent magnet motor - Google Patents
Integrated braking permanent magnet motor Download PDFInfo
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- CN116388461A CN116388461A CN202310439426.6A CN202310439426A CN116388461A CN 116388461 A CN116388461 A CN 116388461A CN 202310439426 A CN202310439426 A CN 202310439426A CN 116388461 A CN116388461 A CN 116388461A
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- braking
- fan
- permanent magnet
- output shaft
- brake
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- 238000009434 installation Methods 0.000 claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 229910001018 Cast iron Inorganic materials 0.000 claims description 24
- 230000005284 excitation Effects 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000009423 ventilation Methods 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 7
- 230000005389 magnetism Effects 0.000 description 7
- 210000000988 bone and bone Anatomy 0.000 description 4
- 241000883990 Flabellum Species 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- -1 neodymium iron boron rare earth Chemical class 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- 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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
-
- 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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
- H02K7/1021—Magnetically influenced friction brakes
- H02K7/1023—Magnetically influenced friction brakes using electromagnets
-
- 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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
- H02K7/1021—Magnetically influenced friction brakes
- H02K7/1023—Magnetically influenced friction brakes using electromagnets
- H02K7/1025—Magnetically influenced friction brakes using electromagnets using axial electromagnets with generally annular air gap
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
The application relates to an integrated braking permanent magnet motor which is applied to the field of hoisting mechanical equipment and comprises a shell, wherein one end of the shell is provided with a front end cover, the other end of the shell is provided with a rear end cover, the shell, the front end cover and the rear end cover are enclosed to form an installation space, a motor body and a braking mechanism are arranged in the installation space, and the braking mechanism is sleeved on the motor body; the braking mechanism comprises a braking component sleeved on the output shaft of the motor body and a fan, the fan is fixed on the output shaft of the motor body and rotates under the driving of the motor body, and the surface of the fan, which faces the braking component, is a braking surface for the braking component to abut against. The application has the following effects: during braking, the braking component is abutted against the braking surface of the fan to brake the fan, so that the output shaft of the motor body is driven to stop rotating, and braking is realized. The traditional brake disc is combined with the fan, and the braking surface is arranged on the fan to replace the traditional brake disc, so that the size of the brake motor is reduced, and the weight of the brake motor is reduced.
Description
Technical Field
The application relates to the field of hoisting mechanical equipment, in particular to an integrated braking permanent magnet motor.
Background
The braking motor plays an emergency braking role in lifting operation, is an important power and safety device in crane series operation, and is widely applied in the hoisting machinery industry. The hoisting machinery has the working characteristics of repeated short-time working system and frequent braking, and the working characteristics require the braking motor to have the advantages of small volume, light weight and small moment of inertia.
In the related art, a brake motor applied in the hoisting industry is mostly a combination of a common variable frequency asynchronous motor and a drum brake, namely, the drum brake is sleeved on an output shaft of the variable frequency asynchronous motor to realize a braking function. When the brake is applied to the lifting industry, the drum brake is required to be additionally arranged on the variable frequency asynchronous motor, and meanwhile, due to the characteristic of large heating value of the variable frequency asynchronous motor, a fan is required to be additionally arranged in the variable frequency asynchronous motor to dissipate heat in the actual use process, and the brake motor adopting the assembly mode is large in size and heavy in weight.
Disclosure of Invention
In order to solve the problems of large volume and heavy weight of a brake motor adopting an assembly mode in the related technology, the application provides an integrated brake permanent magnet motor.
The application provides an integrated braking permanent magnet motor adopts following technical scheme:
the integrated braking permanent magnet motor comprises a shell, wherein one end of the shell is provided with a front end cover, the other end of the shell is provided with a rear end cover, the shell, the front end cover and the rear end cover are enclosed to form an installation space, a motor body and a braking mechanism are arranged in the installation space, and the braking mechanism is sleeved on the motor body;
the braking mechanism comprises a braking component and a fan, wherein the braking component is sleeved on the output shaft of the motor body, the fan is fixed on the output shaft of the motor body and is driven by the motor body to rotate, and the surface, facing the braking component, of the fan is set to be a braking surface for the braking component to abut against.
Through adopting above-mentioned technical scheme, motor body and brake mechanism all install in installation space, have promoted this permanent magnet motor's wholeness. The fan is coaxially fixed on the output shaft of the motor body, and when the permanent magnet motor runs, the fan rotates along with the rotation of the output shaft, so that the permanent magnet motor has the functions of ventilation and heat dissipation. During braking, the braking component is abutted to the braking surface of the fan, friction is generated by the mutual abutting of the braking component and the braking surface of the fan, so that the fan stops rotating, and the output shaft of the motor body is driven to stop rotating, and a braking function is realized.
In the process, the fan has the functions of ventilation and heat dissipation, and also has the function of realizing braking by being matched with the braking component, and the traditional friction disc and the fan are integrated into a whole, so that the axial space of the permanent magnet motor is shortened, the volume of the permanent magnet motor is reduced, and the weight of the permanent magnet motor is reduced.
Optionally, the fan includes the fan axle, the fan axle cup joints and fixes on the output shaft of motor body, be equipped with a plurality of fan bones along circumference interval on the fan axle, the fan bone towards the face of brake subassembly is the braking face, the fan bone is dorsad one side of braking face is equipped with the flabellum.
Through adopting above-mentioned technical scheme, drive fan axle rotation when motor body's output shaft rotates, the fan bone is connected the flabellum on the fan axle, and the flabellum is driven rotatory continuously to blow to motor body, has ventilation heat dissipation function.
Optionally, abutment plates for abutment of the braking component are arranged between any two adjacent fan ribs, and the surfaces of the abutment plates facing the braking component are flush with the braking surface.
Through adopting above-mentioned technical scheme, butt piece and brake subassembly butt have increased the area of contact between brake subassembly and the fan to increase the friction between brake subassembly and the fan rib when braking, accelerate braking.
Optionally, the braking component comprises a magnetic ring sleeved on the output shaft of the motor body, the magnetic ring is fixed on the shell, an embedded groove and an installation groove are formed in the surface, facing the braking surface, of the magnetic ring, a magnetic excitation coil is embedded in the embedded groove, a braking spring is arranged in the installation groove, one end of the braking spring is fixed on the groove wall of the installation groove, and the other end of the braking spring extends out of the installation groove and is connected with an armature;
the fan shaft is sleeved with the armature, the armature is mounted on the magnetic ring through the connecting assembly, a yielding space is formed between the inner ring of the armature and the side wall of the fan shaft, and the braking spring abuts against the braking surface and the abutting piece when braking.
By adopting the technical scheme, when the motor body runs, the magnetic excitation coil is electrified to generate magnetic force to adsorb the armature, the armature presses the brake spring into the embedded groove and is abutted with the magnetic ring, and the fan synchronously rotates along with the rotation of the output shaft; during braking, the magnetic excitation coil is powered off to lose magnetism, and the armature is abutted against the braking surface and the abutting piece under the abutting action of the braking spring, so that braking is completed.
Optionally, a friction plate is arranged on a surface of the armature facing away from the magnetic ring, and the braking spring abuts against the friction plate on the braking surface and the abutting piece during braking.
Through adopting above-mentioned technical scheme, set up the friction disc and support the friction disc tightly on braking face and butt piece, increased the frictional resistance between armature and braking face and the butt piece, promoted the braking effect.
Optionally, a curing agent is poured into the embedding groove, a curing layer is formed after the curing agent is solidified, and the magnetic excitation coil is embedded in the curing layer.
By adopting the technical scheme, the magnetic excitation coil is packaged in the curing layer, so that the position of the magnetic coil in the embedded groove is limited, and the possibility of abnormal sound generated by collision of the magnetic coil with the groove wall of the embedded groove in the operation process of the permanent magnet motor is reduced. In addition, the magnetic excitation coil is packaged in the curing layer, the magnetic excitation coil is isolated from the external environment, and the situation that the magnetic excitation coil is damped and oxidized to rust is effectively reduced.
Optionally, the coupling assembling includes connecting bolt, run through on the magnetic ring and be equipped with the first perforation that connecting bolt passed, connecting bolt's lateral wall with leave the clearance between the pore wall of first perforation, run through on the armature and be equipped with the confession connecting bolt passes the second perforation, connecting bolt's lateral wall with the laminating of second perforation pore wall.
Through adopting above-mentioned technical scheme, leave the clearance between connecting bolt and first perforation, reduced the friction that armature received in the removal in-process, made things convenient for armature to remove. The hole wall of the second perforation is attached to the side wall of the connecting bolt, so that the armature can drive the connecting bolt to synchronously move.
Optionally, a support bearing is arranged between the magnetic ring and the output shaft of the motor body, and the support bearing is sleeved on the output shaft.
By adopting the technical scheme, the supporting shaft seat plays a role in supporting the magnetic ring, so that the stability of installation of the magnetic ring in the installation space is improved, and the magnetic ring is not easy to be influenced by rotation of the output shaft of the motor body to generate a displacement phenomenon.
Optionally, the motor body comprises a rotor sleeved and fixed on the output shaft, a stator is sleeved on the rotor, the stator is fixed on the shell, and a gap is reserved between the inner wall of the stator and the side wall of the rotor;
the rotor comprises a cast iron seat sleeved and fixed on the output shaft, a plurality of permanent magnet sheets are arranged on the cast iron seat, the permanent magnet sheets are distributed at intervals along the circumferential direction of the cast iron seat, and the permanent magnet sheets are installed on the cast iron seat through a fixing assembly.
Through adopting above-mentioned technical scheme, install the permanent magnetism piece on cast iron seat through fixed subassembly, permanent magnetism piece self has magnetism, is difficult for generating heat in the use, has effectively reduced the motor body and has generated heat so that influence the condition of normal operating when the operation.
Optionally, the fixing component comprises a fixing screw, an adhesive layer is arranged between the permanent magnet piece and the cast iron seat, and the fixing screw sequentially penetrates through the permanent magnet piece and the adhesive layer and then fixes the permanent magnet piece on the cast iron seat.
By adopting the technical scheme, the permanent magnet sheet is fixed on the cast iron seat by using the fixing screw, so that the permanent magnet sheet is fixed. The arrangement of the adhesive layer further improves the stability of connection between the permanent magnet piece and the cast iron seat, so that the permanent magnet piece is not easy to fall off from the cast iron seat in the rotation process.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the fan is coaxially fixed on the output shaft of the motor body, and when the permanent magnet motor runs, the fan rotates along with the rotation of the output shaft, so that the permanent magnet motor has the functions of ventilation and heat dissipation. During braking, the braking component is abutted to the braking surface of the fan, friction is generated by the mutual abutting of the braking component and the braking surface of the fan, so that the fan stops rotating, and the output shaft of the motor body is driven to stop rotating, and a braking function is realized.
The fan has the functions of ventilation and heat dissipation and also has the function of realizing braking by being matched with the braking component. The traditional friction disc and the fan are integrated into a whole, so that the axial space of the permanent magnet motor is shortened, the volume of the permanent magnet motor is reduced, and the weight of the permanent magnet motor is reduced;
2. the abutting piece is abutted with the braking component, so that the contact area between the braking component and the fan is increased, friction between the braking component and the fan rib during braking is increased, and braking is accelerated;
3. the magnetic excitation coil is packaged in the curing layer, so that the position of the magnetic coil in the embedded groove is limited, and the possibility of abnormal sound generated by collision of the magnetic coil with the wall of the embedded groove in the operation process of the permanent magnet motor is reduced. In addition, the magnetic excitation coil is packaged in the curing layer, the magnetic excitation coil is isolated from the external environment, and the situation that the magnetic excitation coil is damped and oxidized to rust is effectively reduced.
Drawings
Fig. 1 is a schematic diagram of an integrated brake permanent magnet motor in an embodiment of the present application.
Fig. 2 is a cross-sectional view of an integrated brake permanent magnet motor in an embodiment of the present application.
Fig. 3 is a schematic view of a fan and an abutment sheet in an embodiment of the present application.
Reference numerals: 1. a housing; 2. a front end cover; 3. a rear end cover; 4. an installation space; 5. a motor body; 51. an output shaft; 52. a stator; 53. a rotor; 531. a cast iron seat; 532. a permanent magnet sheet; 6. a braking mechanism; 61. a brake assembly; 611. a magnetic ring; 6111. an embedding groove; 6112. a mounting groove; 612. a magnetic excitation coil; 613. a brake spring; 614. an armature; 615. a friction plate; 62. a fan; 621. a fan shaft; 622. fan ribs; 6221. a braking surface; 623. a fan blade; 7. a contact piece; 8. a connection assembly; 81. a connecting bolt; 9. a fixing assembly; 91. a set screw; 92. an adhesive layer; 11. a space for giving way; 12. solidifying the layer; 13. and supporting the bearing.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-3.
The embodiment of the application discloses an integrated braking permanent magnet motor.
Referring to fig. 1 and 2, an integrated brake permanent magnet motor is mainly applied to lifting machinery equipment requiring quick stopping and accurate positioning. The integrated braking permanent magnet motor comprises a shell 1, wherein a front end cover 2 is arranged at one end of the shell 1, a rear end cover 3 is arranged at the other end of the shell, and the front end cover 2 and the rear end cover 3 are both fixed on the shell 1 through bolts. An installation space 4 is formed by enclosing the front end cover 2, the rear end cover 3 and the shell 1, a motor body 5 and a braking mechanism 6 are arranged in the installation space 4, and the braking mechanism 6 is used for braking the motor body 5.
The front end cover 2, the rear end cover 3 and the shell 1 in the embodiment of the application are all made of extruded aluminum profiles, and the aluminum profile has the advantages of light weight, high strength and attractive appearance.
Referring to fig. 2, specifically, the motor body 5 includes an output shaft 51, the output shaft 51 is disposed along an axial direction of the housing 1, a through hole through which the output shaft 51 passes is formed in the front end cover 2, the output shaft 51 and the front end cover 2 are connected through a connecting bearing, the connecting bearing is sleeved on the output shaft 51, and an outer ring is welded with a wall of the through hole.
The motor body 5 further comprises a stator 52 sleeved and fixed on the output shaft 51, a rotor 53 is embedded in the shell 1, the rotor 53 is sleeved on the stator 52, and a gap for the stator 52 to rotate is reserved between the side wall of the rotor 53 and the inner wall of the stator 52.
Referring to fig. 2, specifically, the stator 52 includes a cast iron seat 531 sleeved and keyed on the output shaft 51, and a plurality of permanent magnet pieces 532 are uniformly distributed on the cast iron seat 531 in the circumferential direction, and the permanent magnet pieces 532 are mounted on the cast iron seat 531 through a fixing assembly 9. The permanent magnet piece 532 in this application embodiment adopts high performance neodymium iron boron rare earth to make, and self magnetism is high, and difficult heating during the use can effectively reduce motor body 5 temperature rise.
Referring to fig. 2, the fixing assembly 9 includes a fixing screw 91 penetrating the permanent magnet piece 532, and the fixing screw 91 fixes the permanent magnet piece 532 to the cast iron seat 531.
In order to enhance the stability of the connection between the permanent magnet piece 532 and the cast iron seat 531, in the embodiment of the application, before the permanent magnet piece 532 is installed, structural adhesive is coated on the permanent magnet piece 532, then the permanent magnet piece 532 is adhered to the surface of the cast iron seat 531, the structural adhesive is solidified to form the adhesive layer 92, and finally fixing screws 91 sequentially penetrate through the permanent magnet piece 532 and the adhesive layer 92 to complete fixing, so that the situation that the permanent magnet piece 532 falls off from the cast iron seat 531 in the rotation process is effectively reduced.
Referring to fig. 2 and 3, the brake mechanism 6 includes a brake assembly 61 and a fan 62 which are sleeved on the output shaft 51, the brake assembly 61 is located between the fan 62 and the stator 52 of the motor body 5, and the fan 62 is coaxially fixed on the output shaft 51. When the permanent magnet motor is running, the fan 62 rotates synchronously with the output shaft 51, and plays a role in ventilation and heat dissipation. During braking, the braking component 61 is abutted against the fan 62 to prevent the fan 62 from rotating, so that the output shaft 51 stops rotating, and braking is realized.
Referring to fig. 2, specifically, the fan 62 includes a fan shaft 621 sleeved on the output shaft 51, the fan shaft 621 is connected with the output shaft 51 by a key, a plurality of fan ribs 622 are uniformly distributed on the fan shaft 621 along the circumferential direction, and the fan ribs 622 and the fan shaft 621 are integrally formed. The surface of the fan rib 622 facing the brake assembly 61 is provided as a brake surface 6221 for the brake assembly 61 to abut, and the brake surface 6221 in the present application is a plane; fan blades 623 are integrally formed on the surface of the fan rib 622 facing away from the brake assembly 61, and continuously blow air to the motor body 5 along with the rotation of the output shaft 51, thereby achieving the effect of ventilation and cooling.
Referring to fig. 2 and 3, further, in order to increase the contact area between the brake assembly 61 and the fan 62 for accelerating braking, in this embodiment, an abutment piece 7 is integrally formed between two adjacent fan ribs 622, and the surface of the abutment piece 7 close to the brake assembly 61 is flush with the braking surface 6221. The braking assembly 61 is abutted against the braking surface 6221 of the fan rib 622 and the abutting piece 7 during braking, and the braking effect is improved by increasing the contact area with the braking assembly 61.
Referring to fig. 2, specifically, the brake assembly 61 includes a magnetic ring 611 sleeved on the output shaft 51, a support bearing 13 is disposed between the magnetic ring 611 and the output shaft 51, and one end of the magnetic ring 611 near the stator 52 is welded to the stator 52. The surface of the magnetic ring 611 facing away from the rotor 53 is provided with an embedded groove 6111 in which the magnetic excitation coil 612 is embedded.
In order to improve the stability of the installation of the magnetic excitation coil 612 in the embodiment of the application, after the magnetic excitation coil 612 is embedded in the embedding groove 6111, a curing agent is poured into the embedding groove 6111, the curing agent used in the application is epoxy resin, and the magnetic excitation coil 612 can be packaged in the embedding groove 6111 after the curing agent is solidified and molded to form the curing layer 12.
Referring to fig. 2, in addition, a mounting groove 6112 is further formed in a surface of the magnetic ring 611 facing away from the rotor 53, the mounting groove 6112 is formed in the circumferential direction of the magnetic ring 611, a brake spring 613 is mounted in the mounting groove 6112, one end of the brake spring 613 is welded on a groove wall of the mounting groove 6112, an armature 614 extends out of the mounting groove 6112 and is welded on the other end, a friction plate 615 is sintered on a surface of the armature 614 facing away from the brake spring 613, and the armature 614 is mounted on the magnetic ring 611 through a connecting assembly 8.
Referring to fig. 2 and 3, when the permanent magnet motor is operated, the magnetic field coil 612 is electrified to generate magnetism, the armature 614 is attracted to the magnetic ring 611, the friction plate 615 is separated from the braking surface 6221 and the abutting plate 7, the output shaft 51 and the fan 62 rotate, and the braking spring 613 is in a compressed state; when the output shaft 51 needs to be braked, the magnetic exciting coil 612 is powered off and loses magnetism, the brake spring 613 pushes the armature 614 towards the direction of the fan 62, so that the friction plate 615 is abutted against the brake surface 6221 of the fan rib 622 and the abutment plate 7 to prevent the fan 62 from rotating, and the output shaft 51 is driven to stop rotating, and braking is achieved.
The armature 614 in the application adopts an annular structure, the armature 614 is sleeved on the fan shaft 621, a space 11 for yielding is reserved between the inner ring of the armature 614 and the side wall of the fan shaft 621, and the armature 614 can move conveniently.
Referring to fig. 2, specifically, the connecting assembly 8 is a connecting bolt 81, a second through hole for the connecting bolt 81 to pass through is formed on the armature 614, and the hole wall of the second through hole is fit with the side wall of the connecting bolt 81, so that the connecting bolt 81 can move along with the movement of the armature 614; the magnetic ring 611 is provided with a first through hole through which the connecting bolt 81 passes, and a gap is left between the hole wall of the first through hole and the side wall of the connecting bolt 81, so that the connecting bolt 81 moves along the axial direction of the output shaft 51 in the running and braking processes.
The connecting bolt 81 sequentially penetrates through the armature 614 and the magnetic ring 611 along the axis of the output shaft 51, and the armature 614 is mounted, so that the armature 614 is not easy to shake in the rotation process of the output shaft 51.
The implementation principle of the integrated braking permanent magnet motor provided by the embodiment of the application is as follows: the motor body 5 and the braking mechanism 6 are both arranged in the installation space 4, so that the integrity of the permanent magnet motor is improved. The fan 62 is coaxially fixed to the output shaft 51 of the motor body 5, and when the permanent magnet motor is operated, the fan 62 rotates with rotation of the output shaft 51, and functions to ventilate and dissipate heat.
During braking, the braking component 61 is abutted against the braking surface 6221 of the fan 62, friction is generated by the mutual abutting of the braking component 61 and the braking surface 6221 of the fan 62, so that the fan 62 stops rotating, and the output shaft 51 of the motor body 5 is driven to stop rotating, and a braking function is realized.
In the process, the fan 62 has the function of ventilation and heat dissipation, and also has the function of braking by being matched with the braking component 61, and the traditional friction disc and the fan 62 are integrated into a whole, so that the axial space of the permanent magnet motor is shortened, the axial length of the permanent magnet motor is shortened, the volume of the permanent magnet motor is reduced, and the weight of the permanent magnet motor is reduced.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (10)
1. An integrated braking permanent magnet motor, characterized in that: the motor comprises a shell (1), wherein one end of the shell (1) is provided with a front end cover (2), the other end of the shell is provided with a rear end cover (3), the shell (1), the front end cover (2) and the rear end cover (3) are enclosed to form an installation space (4), a motor body (5) and a braking mechanism (6) are arranged in the installation space (4), and the braking mechanism (6) is sleeved on the motor body (5);
the braking mechanism (6) comprises a braking component (61) sleeved on the output shaft (51) of the motor body (5) and a fan (62), the fan (62) is fixed on the output shaft (51) of the motor body (5) and rotates under the driving of the motor body (5), and the surface of the fan (62) facing the braking component (61) is a braking surface (6221) for the braking component (61) to abut against.
2. An integrated braking permanent magnet motor according to claim 1, wherein: the fan (62) comprises a fan shaft (621), the fan shaft (621) is sleeved and fixed on an output shaft (51) of the motor body (5), a plurality of fan ribs (622) are arranged on the fan shaft (621) along the circumferential direction at intervals, the surface, facing the brake assembly (61), of the fan ribs (622) is the brake surface (6221), and one side, facing away from the brake surface (6221), of the fan ribs (622) is provided with fan blades (623).
3. An integrated braking permanent magnet motor according to claim 2, wherein: and abutting pieces (7) for abutting the brake assemblies (61) are arranged between any two adjacent fan ribs (622), and the surfaces of the abutting pieces (7) facing the brake assemblies (61) are flush with the brake surfaces (6221).
4. An integrated brake permanent magnet motor according to claim 3, wherein: the braking assembly (61) comprises a magnetic ring (611) sleeved on an output shaft (51) of the motor body (5), the magnetic ring (611) is fixed on the shell (1), an embedded groove (6111) and an installation groove (6112) are formed in the surface, facing the braking surface (6221), of the magnetic ring (611), a magnetic excitation coil (612) is embedded in the embedded groove (6111), a braking spring (613) is arranged in the installation groove (6112), one end of the braking spring (613) is fixed on the groove wall of the installation groove (6112), and the other end of the braking spring extends out of the installation groove (6112) and is connected with an armature (614);
the fan-shaped magnetic ring is characterized in that the armature (614) is sleeved on the fan shaft (621), the armature (614) is mounted on the magnetic ring (611) through the connecting assembly (8), a yielding space (11) is formed between the inner ring of the armature (614) and the side wall of the fan shaft (621), and when braking, the braking spring (613) abuts the armature (614) on the braking surface (6221) and the abutting piece (7).
5. An integrated brake permanent magnet motor according to claim 4, wherein: a friction plate (615) is arranged on the surface of the armature (614) facing away from the magnetic ring (611), and the friction plate (615) is abutted against the braking surface (6221) and the abutting piece (7) by the braking spring (613) during braking.
6. An integrated brake permanent magnet motor according to claim 4, wherein: the embedded groove (6111) is filled with a curing agent, a curing layer (12) is formed after the curing agent is solidified, and the magnetic excitation coil (612) is embedded in the curing layer (12).
7. An integrated brake permanent magnet motor according to claim 4, wherein: the connecting assembly (8) comprises a connecting bolt (81), a first through hole penetrating through the connecting bolt (81) is formed in the magnetic ring (611), a gap is reserved between the side wall of the connecting bolt (81) and the wall of the first through hole, a second through hole penetrating through the connecting bolt (81) is formed in the armature (614), and the side wall of the connecting bolt (81) is attached to the wall of the second through hole.
8. An integrated brake permanent magnet motor according to claim 4, wherein: a supporting bearing (13) is arranged between the magnetic ring (611) and the output shaft (51) of the motor body (5), and the supporting bearing (13) is sleeved on the output shaft (51).
9. An integrated braking permanent magnet motor according to claim 1, wherein: the motor body (5) comprises a rotor (53) sleeved and fixed on the output shaft (51), a stator (52) is sleeved on the rotor (53), the stator (52) is fixed on the shell (1), and a gap is reserved between the inner wall of the stator (52) and the side wall of the rotor (53);
the rotor (53) comprises a cast iron seat (531) sleeved and fixed on the output shaft (51), a plurality of permanent magnet sheets (532) are arranged on the cast iron seat (531), the permanent magnet sheets (532) are distributed at intervals along the circumferential direction of the cast iron seat (531), and the permanent magnet sheets (532) are installed on the cast iron seat (531) through a fixing component (9).
10. An integrated brake permanent magnet motor according to claim 9, wherein: the fixing assembly (9) comprises a fixing screw (91), an adhesive layer (92) is arranged between the permanent magnet piece (532) and the cast iron base (531), and the fixing screw (91) sequentially penetrates through the permanent magnet piece (532) and the adhesive layer (92) to fix the permanent magnet piece (532) on the cast iron base (531).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310439426.6A CN116388461A (en) | 2023-04-22 | 2023-04-22 | Integrated braking permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310439426.6A CN116388461A (en) | 2023-04-22 | 2023-04-22 | Integrated braking permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116388461A true CN116388461A (en) | 2023-07-04 |
Family
ID=86971047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310439426.6A Pending CN116388461A (en) | 2023-04-22 | 2023-04-22 | Integrated braking permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116388461A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158008A (en) * | 2011-02-02 | 2011-08-17 | 宁波市镇海电机厂 | Electromagnetic brake motor with spiral blade fan |
| CN205319854U (en) * | 2015-11-19 | 2016-06-15 | 南京起重电机总厂 | Electromagnetic brake |
| AU2021105224A4 (en) * | 2021-08-10 | 2021-10-07 | China University Of Mining And Technology | Flameproof Permanent Magnet Semi-direct Driving Force Device for Belt Conveyor |
| JP2021164312A (en) * | 2020-03-31 | 2021-10-11 | 東京モートロニクス株式会社 | motor |
| CN214590995U (en) * | 2021-03-26 | 2021-11-02 | 武汉华大新型电机科技股份有限公司 | Special electromagnetic power-off protection brake for alternating-current permanent magnet synchronous servo motor |
-
2023
- 2023-04-22 CN CN202310439426.6A patent/CN116388461A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158008A (en) * | 2011-02-02 | 2011-08-17 | 宁波市镇海电机厂 | Electromagnetic brake motor with spiral blade fan |
| CN205319854U (en) * | 2015-11-19 | 2016-06-15 | 南京起重电机总厂 | Electromagnetic brake |
| JP2021164312A (en) * | 2020-03-31 | 2021-10-11 | 東京モートロニクス株式会社 | motor |
| CN214590995U (en) * | 2021-03-26 | 2021-11-02 | 武汉华大新型电机科技股份有限公司 | Special electromagnetic power-off protection brake for alternating-current permanent magnet synchronous servo motor |
| AU2021105224A4 (en) * | 2021-08-10 | 2021-10-07 | China University Of Mining And Technology | Flameproof Permanent Magnet Semi-direct Driving Force Device for Belt Conveyor |
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Application publication date: 20230704 |
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