CN114598106A - Hollow shaft permanent magnet traction motor capable of self-cooling adjustment according to dynamic air flow - Google Patents
Hollow shaft permanent magnet traction motor capable of self-cooling adjustment according to dynamic air flow Download PDFInfo
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- CN114598106A CN114598106A CN202210410071.3A CN202210410071A CN114598106A CN 114598106 A CN114598106 A CN 114598106A CN 202210410071 A CN202210410071 A CN 202210410071A CN 114598106 A CN114598106 A CN 114598106A
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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
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
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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
- H02K9/26—Structural association of machines with devices for cleaning or drying cooling medium, e.g. with filters
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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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- Thermal Sciences (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The invention discloses a hollow shaft permanent magnet traction motor capable of self-cooling regulation according to dynamic air flow, and belongs to the technical field of traction motors. The invention comprises a shell, wherein a plurality of radiating fins are arranged outside the shell, a wiring end is arranged on the shell, a front end cover and a rear end cover are respectively arranged at two ends of the shell, a crankshaft is rotatably connected between the front end cover and the rear end cover through a bearing, a stator is arranged in the shell, a rotor is arranged on the crankshaft, a cooling component is arranged in the shell, the cooling component forms a magnetic refrigeration effect through reciprocating motion of a magnetic material between magnetic fields, so that the interior of a motor is subjected to radiating treatment, and a damping component is arranged at the lower end of the shell, so that the damping component effectively reduces the vibration and collision friction conditions of mechanical parts caused by the self operation of a traction motor and the operation of an electric car, and prolongs the service life of the traction motor.
Description
Technical Field
The invention relates to the technical field of traction motors, in particular to a hollow shaft permanent magnet traction motor capable of self-cooling regulation according to dynamic air flow.
Background
In the application of low-floor city buses and electric automobiles, because of the severe use environment, the traction motor adopts a closed structure, and generally adopts cooling modes such as natural cooling, self-ventilation, water cooling and the like, although the water cooling mode is more applied to the traction motor with higher power density, the application of the water cooling mode in partial places is limited, for example, in a trolley bus, the water cooling traction motor is not recommended; the natural cooling mode has limited cooling effect, and the traction motor adopting the cooling mode has relatively large volume and low power level; the self-ventilation cooling mode has poor cooling effect, influences the application of the self-ventilation cooling mode, and the shock generated in the running process of the electric vehicle and the shock and dynamic airflow generated in the running process of the traction motor cause shock, collision and friction of mechanical parts of the traction motor to be aggravated, and influences the service life of the traction motor, so the problems are still solved.
Disclosure of Invention
The present invention aims to solve the above-mentioned problems of the prior art by providing a self-cooling regulated hollow shaft permanent magnet traction motor based on dynamic air flow.
In order to solve the technical problems, the invention provides the following technical scheme:
a self-cooling regulated hollow shaft permanent magnet traction motor based on dynamic air flow comprises a housing, a plurality of radiating fins are arranged outside the casing, a wiring end is arranged on the casing, a front end cover and a rear end cover are respectively arranged at two ends of the casing, a crankshaft is rotationally connected between the front end cover and the rear end cover through a bearing, a stator is arranged in the casing, the shaft is provided with a rotor, the shell is internally provided with a cooling component, the cooling component forms a magnetic refrigeration effect by reciprocating motion of a magnetic material between magnetic fields, thereby to the inside heat dissipation processing of motor, the lower extreme of casing is provided with damper, and damper effectively reduces the mechanical parts shake that traction motor self operation and trolley-bus operation lead to and hits the friction condition, has prolonged traction motor life.
The cooling assembly comprises a magnetic material, a plurality of through holes are formed in the magnetic material, a plurality of first sliding grooves are formed in the crankshaft, a second sliding groove is formed in each first sliding groove, a protruding block is connected in each second sliding groove in a sliding mode, a first spring is arranged between each protruding block and the corresponding second sliding groove, when the controller controls the traction motor to operate, the crankshaft drives the magnetic material and the driven ring to rotate, the auxiliary coil performs cutting magnetic induction line motion between the second magnet and the first magnet, current generated by the auxiliary coil is transmitted to the fourth spring through the time relay, timing is started after the time relay receives a controller starting signal, and after the timing is finished, a working contact of the time relay performs opening or closing motion, so that subsequent circuit operation is promoted. The time delay performance of the time relay can be adjusted within the designed range, so that the time for the auxiliary coil to convey current to the fourth spring is conveniently adjusted, the degree of contraction deformation of the fourth spring is adjusted, the refrigeration effect of the magnetic material is affected, and the internal cooling adjustment of the traction motor is realized.
The magnetic material inner ring is provided with a plurality of limiting blocks on the surface, the limiting blocks slide in the first sliding grooves respectively, each limiting block is internally provided with a functional groove, and the magnetic material inner ring is rotatably connected with a plurality of blade shafts.
And one end of each of the blade shafts is respectively positioned in the functional grooves, one end of each of the blade shafts is provided with a shifting block, and the other end of each of the blade shafts is provided with a blade.
The convex block slides in the functional groove, the convex block is connected with the shifting block in a sliding manner, two magnetic blocks are arranged in the limiting block, the shifting block is magnetically connected with the magnetic blocks, when the auxiliary coil transmits current to the fourth spring through the time relay, the adjacent coils with the same current direction can generate mutual attraction, so the fourth spring can contract under the magnetic effect of the current to drive the magnetic material to move towards the position close to the rear end cover, when the shifting block is not contacted with the convex block, the blades extract outside air through the through grooves on the front end cover, the outside air is used for carrying out air cooling treatment on the interior of the traction motor and the magnetic material, when the magnetic material moves towards the direction close to the rear end cover, the magnetic material is far away from the magnetic field between the stators, the magnetic material is in a heat absorption state, the shifting block on the blade shaft is shifted towards the other side after being blocked by the convex block, and the shifting block is fixed by the magnetism of the magnetic block on the other side, the blade takes place the angle and deflects this moment, and a plurality of blades pass through logical groove extraction outside air on the rear end cover, and outside air is cooled off behind the magnetic material of temperature reduction, is cooled off the temperature processing through stator and rotor by cooling air and to it, and the air is discharged the external world through leading to the groove on the front end cover again to realize the inside heat transfer cooling of casing and handle.
The rear end cover is internally provided with a second magnet and a first magnet, the second magnet and the first magnet form a magnetic field, the crankshaft is provided with a driven ring, the surface of the driven ring is wound with an auxiliary coil, the auxiliary coil cuts a magnetic induction line in the magnetic field, and the auxiliary coil is electrically connected with a time relay.
A plurality of telescopic rods and a fourth spring are connected between the driven ring and the inner ring of the magnetic material, the fourth spring is sleeved on the surface of the telescopic rods and is electrically connected with the auxiliary coil through a time relay, when the auxiliary coil stops transmitting current to the fourth spring through the time relay, the fourth spring drives the magnetic material to move towards the direction close to the stator under the action of the spring elasticity and then to return to the original position, so that the magnetic material is positioned between the magnetic fields of the stator and is in a heat release state, the shifting block on the blade shaft is shifted back to the original position after being blocked by the convex block, so that the shifting block is magnetically fixed by the magnetic block in the original position, the blade angle is deflected to the original state, a plurality of blades extract external air through the through grooves on the front end cover, the external air passes through the stator, the rotor and the magnetic material and is subjected to air cooling treatment, and the external air is discharged to the outside through the through grooves on the rear end cover after passing through the through holes of the magnetic material, and the heat exchange and temperature reduction treatment inside the shell is realized.
The fourth spring is connected with the magnetic material inner ring in an insulating mode, the driven ring and the magnetic material rotate synchronously along with the crankshaft, the magnetic material stretches between the stator and the casing through the fourth spring, the front end cover and the rear end cover are provided with a plurality of through grooves, and each through groove is internally provided with a filter screen.
The damping component comprises a supporting seat and a base, the supporting seat is installed at the lower end of the casing, a buffer seat is connected to the supporting seat, a buffer block is installed at the lower end of the buffer seat, a third sliding groove and a buffer groove are formed in the base, a second spring is arranged between the buffer block and the third sliding groove, an auxiliary coil is periodically electrified to a fourth spring through a time relay, the fourth spring periodically drives a magnetic material to periodically reciprocate under the magnetic effect of current, so that the magnetic material reciprocates in the magnetic field of the stator, the magnetic material generates a refrigeration effect and forms a breathing heat exchange treatment inside the casing, when the blades are angularly deflected to extract outside air through the through grooves in the front end cover, discharged gas performs blowing action from inside to outside on the filter screen on the rear end cover, and dust on the surface of the filter screen on the rear end cover is blown down, when taking place the angle and deflecting through the last logical groove extraction ambient air of rear end cap at the blade, the combustion gas carries out the action of blowing from inside to outside to the filter screen on the front end housing again for filter screen surface dust is blown off on the front end housing, and the blade that takes place the angle and deflect when realizing the inside breathing type heat transfer cooling of casing, has played the effect of filter screen ash removal on front end housing and the rear end housing again, has improved the filter effect of filter screen.
A fourth chute is formed in the buffer slot, two first guide blocks are arranged in the fourth chute, a third spring is connected between the two first guide blocks, a buffer plate is arranged at the lower end of the buffer seat, a fifth chute is formed in the buffer plate, two second guide blocks are connected in the fifth chute in a sliding manner, a fifth spring is connected between the two second guide blocks, a support is connected between the second guide blocks and the first guide blocks and is connected with the buffer seat through a support seat, the vibration of the traction motor is transmitted to the buffer plate and the buffer blocks, the buffer blocks improve the stability of the traction motor while buffering the traction motor through the second springs, the traction motor is further subjected to shock absorption through the cooperation of the support, the fifth spring and the third spring, the running of the traction motor is prevented from being additionally carried out by the trolley bus, and the condition that the mechanical parts are subjected to wear aggravated due to shock collision is caused, the service life of the traction motor is prolonged.
Compared with the prior art, the invention has the following beneficial effects: the invention generates current by the cutting magnetic induction line motion of the auxiliary coil driven by the crankshaft in the cooling component in the magnetic field, the kinetic energy of the crankshaft is converted into electric energy, the industrial energy consumption is saved, the generated current is periodically transmitted to the fourth spring through the time relay, so that the fourth spring periodically drives the magnetic material to do reciprocating motion in the magnetic field of the stator, the magnetic material plays a magnetic refrigeration effect, the blades make corresponding angle deflection adjustment along with the reciprocating motion of the magnetic material, the internal of the traction motor forms respiratory heat dissipation, when the magnetic material is in a heat absorption state, the blades extract the air outside the rear end cover, the air is blown to the front end cover through the rotor and the stator after being cooled through the magnetic material, when the magnetic material is in a heat release state, the blades extract the air outside the front end cover, the air is transmitted to the outside of the rear end cover, and when the respiratory heat dissipation in the traction motor is formed, the dust particles attached to the surface of the filter screen are blown down in a reciprocating wind direction, so that the filter screen has a more efficient filtering effect; the shock caused by self running of the traction motor and running of the electric car is effectively reduced through the shock absorption assembly, the condition that mechanical parts are shocked and rubbed is avoided, and the service life of the traction motor is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a first perspective view of a hollow shaft permanent magnet traction motor with self-cooling regulation based on dynamic airflow according to the present invention;
FIG. 2 is a second perspective view of a hollow shaft permanent magnet traction motor with self-cooling regulation based on dynamic airflow according to the present invention;
FIG. 3 is a schematic illustration in partial cross-sectional view of a hollow shaft permanent magnet traction motor with self-cooling regulation based on dynamic airflow according to the present invention;
FIG. 4 is a side cross-sectional schematic structural view of a hollow shaft permanent magnet traction motor with self-cooling regulation based on dynamic airflow of the present invention;
FIG. 5 is a schematic diagram of the magnetic material structure of a hollow shaft permanent magnet traction motor with self-cooling regulation based on dynamic air flow according to the present invention;
FIG. 6 is a front cross-sectional schematic view of a hollow shaft permanent magnet traction motor with self-cooling regulation based on dynamic airflow according to the present invention;
FIG. 7 is an enlarged schematic view at A of FIG. 6 of a hollow shaft permanent magnet traction motor with self-cooling regulation based on dynamic airflow in accordance with the present invention;
FIG. 8 is a schematic cross-sectional top view of a hollow shaft permanent magnet traction motor with self-cooling regulation based on dynamic airflow according to the present invention;
FIG. 9 is an enlarged schematic view at B of FIG. 8 of a hollow shaft permanent magnet traction motor with self-cooling regulation based on dynamic airflow in accordance with the present invention;
FIG. 10 is a schematic view of the damper assembly of the self-cooling regulated dynamic air flow hollow shaft permanent magnet traction motor of the present invention;
in the figure: 1. a housing; 2. a crankshaft; 201. a first chute; 202. a second chute; 203. a first spring; 204. a bump; 3. a supporting seat; 4. a buffer seat; 401. a buffer block; 5. a base; 501. a third chute; 502. a second spring; 503. a fourth chute; 504. a first guide block; 505. a third spring; 506. a support; 6. a terminal; 7. a front end cover; 8. a rear end cap; 801. a second magnet; 802. a first magnet; 9. filtering with a screen; 10. a stator; 11. a rotor; 12. a magnetic material; 121. a limiting block; 122. a functional groove; 123. a leaf shaft; 124. shifting blocks; 125. a blade; 13. a telescopic rod; 14. a fourth spring; 15. a driven ring; 151. an auxiliary coil; 152. a time relay; 16. a magnetic block; 17. a buffer plate; 171. a fifth chute; 172. a second guide block; 173. and a fifth spring.
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 to 10, the present invention provides a technical solution:
a hollow shaft permanent magnet traction motor capable of self-cooling adjustment according to dynamic airflow comprises a casing 1, a plurality of radiating fins are arranged outside the casing 1, a wiring terminal 6 is arranged on the casing 1, a front end cover 7 and a rear end cover 8 are respectively arranged at two ends of the casing 1, a shaft 2 is rotatably connected between the front end cover 7 and the rear end cover 8 through a bearing, a stator 10 is arranged in the casing 1, a rotor 11 is arranged on the shaft 2, a cooling assembly is arranged in the casing 1, the cooling assembly forms a magnetic refrigeration effect through reciprocating motion of a magnetic material 12 between magnetic fields, thereby to the inside heat dissipation processing that carries out of motor, the lower extreme of casing 1 is provided with damper, damper effectively reduces the friction condition that the mechanical parts that traction motor self operation and trolley-bus operation lead to shakes and hits, has prolonged traction motor life.
The cooling assembly comprises a magnetic material 12, a plurality of through holes are formed in the magnetic material 12, a plurality of first sliding grooves 201 are formed in the crankshaft 2, a second sliding groove 202 is formed in each first sliding groove 201, a convex block 204 is connected in each second sliding groove 202 in a sliding mode, a first spring 203 is arranged between each convex block 204 and each second sliding groove 202, when the controller controls the traction motor to operate, the crankshaft 2 drives the magnetic material 12 and the driven ring 15 to rotate, the auxiliary coil 151 cuts magnetic induction lines between the second magnet 801 and the first magnet 802, current generated by the auxiliary coil 151 is transmitted to the fourth spring 14 through the time relay 152, timing is started after the time relay 152 receives a controller starting signal, and after the timing is finished, a working contact of the auxiliary coil performs opening or closing actions, so that subsequent circuits are pushed to operate. The time delay performance of the time relay 152 can be adjusted within the designed range, so that the time for the auxiliary coil 151 to deliver current to the fourth spring 14 can be conveniently adjusted, the degree of contraction deformation of the fourth spring 14 can be adjusted, the refrigeration effect of the magnetic material 12 can be influenced, and the internal cooling adjustment of the traction motor can be realized.
The inner ring surface of the magnetic material 12 is provided with a plurality of limiting blocks 121, the plurality of limiting blocks 121 slide in the plurality of first sliding grooves 201 respectively, a functional groove 122 is formed in each limiting block 121, and the inner ring of the magnetic material 12 is rotatably connected with a plurality of blade shafts 123.
One end of each of the plurality of vane shafts 123 is located in the plurality of functional grooves 122, a dial 124 is mounted at one end of each of the vane shafts 123, and a vane 125 is mounted at the other end of each of the vane shafts 123.
The protrusion 204 slides in the functional slot 122, the protrusion 204 is slidably connected with the shifting block 124, two magnetic blocks 16 are arranged in the limiting block 121, the shifting block 124 is magnetically connected with the magnetic blocks 16, when the auxiliary coil 151 supplies current to the fourth spring 14 through the time relay 152, a mutual attraction force is generated between adjacent coils in the same current direction, so that the fourth spring 14 contracts under the magnetic effect of the current, the magnetic material 12 is driven to move towards the rear end cover 8, when the magnetic material 12 moves towards the rear end cover 8 and the shifting block 124 does not contact the protrusion 204, the blade 125 draws outside air through the through slot on the front end cover 7, the inside of the traction motor and the magnetic material 12 are air-cooled by using the outside air, the magnetic material 12 is far away from the magnetic field between the stators 10, the magnetic material 12 is in a heat absorption state, the shifting block 124 on the blade shaft 123 is blocked by the protrusion 204 and then is shifted towards the other side, the shifting block 124 is magnetically fixed by the magnetic block 16 on the other side, at the moment, the blades 125 deflect angularly, the plurality of blades 125 extract outside air through the through grooves in the rear end cover 8, the outside air is cooled after passing through the magnetic material 12 with reduced temperature, the cooled air passes through the stator 10 and the rotor 11 and cools the stator and the rotor, and the air is discharged outside through the through grooves in the front end cover 7, so that the heat exchange and cooling treatment inside the machine shell 1 is realized.
The rear end cover 8 is internally provided with a second magnet 801 and a first magnet 802, the second magnet 801 and the first magnet 802 form a magnetic field, the crankshaft 2 is provided with a driven ring 15, the surface of the driven ring 15 is wound with an auxiliary coil 151, the auxiliary coil 151 cuts a magnetic induction line in the magnetic field, and the auxiliary coil 151 is electrically connected with a time relay 152.
A plurality of telescopic rods 13 and a plurality of fourth springs 14 are connected between the driven ring 15 and the inner ring of the magnetic material 12, the fourth springs 14 are sleeved on the surfaces of the telescopic rods 13, the plurality of fourth springs 14 are electrically connected with the auxiliary coil 151 through the time relay 152, when the auxiliary coil 151 stops transmitting current to the fourth springs 14 through the time relay 152, the fourth springs 14 drive the magnetic material 12 to move towards the direction close to the stator 10 under the action of spring force and then return to the original position, so that the magnetic material 12 is located between the magnetic fields of the stator 10, the magnetic material 12 is in a heat release state, the poking blocks 124 on the blade shafts 123 are poked back after being blocked by the convex blocks 204, so that the poking blocks 124 are magnetically fixed by the magnetic blocks 16 in the original position, at the moment, the angle of the blades 125 is deflected to the original state, the plurality of blades 125 extract the external air through the through grooves on the front end cover 7, the external air passes through the stator 10, the rotor 11 and the magnetic material 12 and performs air cooling treatment on the magnetic material, the outside air is discharged to the outside through the through groove in the rear end cover 8 after passing through the through hole of the magnetic material 12, and the heat exchange and cooling treatment inside the casing 1 is realized in one step.
The damping component comprises a supporting seat 3 and a base 5, the supporting seat 3 is installed at the lower end of the machine shell 1, a buffer seat 4 is connected on the supporting seat 3, a buffer block 401 is installed at the lower end of the buffer seat 4, a third sliding groove 501 and a buffer groove are formed in the base 5, a second spring 502 is arranged between the buffer block 401 and the third sliding groove 501, the auxiliary coil 151 is enabled to periodically electrify a fourth spring 14 through a time relay 152, the fourth spring 14 periodically drives a magnetic material 12 to periodically reciprocate under the magnetic effect of current, so that the magnetic material 12 reciprocates in the magnetic field of the stator 10, the magnetic material 12 generates a refrigeration effect, the interior of the machine shell 1 forms a breathing heat exchange treatment, when the blades 125 generate angular deflection and extract outside air through a through groove on the front end cover 7, discharged gas blows the filter screen 9 on the rear end cover 8 from inside to outside, make 8 upper filter screen 9 surface dusts of rear end housing blown off, take place the angle at blade 125 and deflect when leading to groove extraction outside air on through rear end housing 8, the combustion gas carries out the action of blowing from inside to outside to filter screen 9 on the front end housing 7 again, make 7 upper filter screen 9 surface dusts of front end housing blown off, blade 125 that the angle deflected takes place when realizing the cooling of the inside breathing formula heat transfer of casing 1, the effect of filter screen 9 except that the ash on front end housing 7 and the rear end housing 8 has been played again, the filter effect of filter screen 9 has been improved.
A fourth sliding groove 503 is arranged in the buffer groove, two first guide blocks 504 are arranged in the fourth sliding groove 503, a third spring 505 is connected between the two first guide blocks 504, a buffer plate 17 is arranged at the lower end of the buffer seat 4, a fifth sliding groove 171 is arranged in the buffer plate 17, two second guide blocks 172 are connected in the fifth sliding groove 171 in a sliding manner, a fifth spring 173 is connected between the two second guide blocks 172, a support 506 is connected between the second guide block 172 and the first guide block 504 and is connected with the buffer seat 4 through a support seat 3, the vibration of the traction motor is transmitted to the buffer plate 17 and the buffer block 401, the buffer block 401 improves the stability of the traction motor while buffering the traction motor through the second spring 502, and further performs damping treatment on the traction motor through the matching of the support 506, the fifth spring 173 and the third spring 505 to avoid the traction motor from running externally, the condition that the abrasion of mechanical parts is aggravated due to shock and collision is caused, and the service life of the traction motor is prolonged.
The working principle of the invention is as follows: when the controller controls the traction motor to run, the crankshaft 2 drives the magnetic material 12 and the driven ring 15 to rotate, the auxiliary coil 151 makes a magnetic induction line cutting motion between the second magnet 801 and the first magnet 802, current generated by the auxiliary coil 151 is transmitted to the fourth spring 14 through the time relay 152, timing is started after the time relay 152 receives a controller starting signal, and after the timing is finished, a working contact of the time relay performs opening or closing actions, so that a subsequent circuit is pushed to work. The time delay performance of the time relay 152 can be adjusted within a designed range, so that the time for the auxiliary coil 151 to deliver current to the fourth spring 14 can be conveniently adjusted, the degree of contraction deformation of the fourth spring 14 can be adjusted, the refrigeration effect of the magnetic material 12 can be influenced, and the internal cooling adjustment of the traction motor can be realized;
when the auxiliary coil 151 supplies current to the fourth spring 14 through the time relay 152, a mutual attraction force is generated between adjacent coils in the same current direction, so that the fourth spring 14 contracts under the magnetic effect of the current to drive the magnetic material 12 to move towards the position close to the rear end cover 8, when the shifting block 124 does not contact the projection 204, the blade 125 extracts outside air through the through groove on the front end cover 7, the inside of the traction motor and the magnetic material 12 are air-cooled by using the outside air, when the magnetic material 12 moves towards the direction close to the rear end cover 8, the magnetic material 12 is far away from the magnetic field between the stators 10, the magnetic material 12 is in a heat absorption state, the shifting block 124 on the blade shaft 123 is shifted towards the other side after being blocked by the projection 204, so that the shifting block 124 is magnetically fixed by the magnetic block 16 on the other side, at this time, the blade 125 is angularly deflected, the plurality of blades 125 extract outside air through the through groove on the rear end cover 8, the outside air is cooled after passing through the magnetic material 12 with the reduced temperature, the cooled air passes through the stator 10 and the rotor 11 and carries out cooling treatment on the cooled air, and the air is exhausted outside through the through groove on the front end cover 7, so that the heat exchange cooling treatment inside the casing 1 is realized;
when the auxiliary coil 151 stops supplying current to the fourth spring 14 through the time relay 152, the fourth spring 14 drives the magnetic material 12 to move towards the direction close to the stator 10 under the action of the spring elasticity and then returns to the original position, so that the magnetic material 12 is located between the magnetic fields of the stator 10, the magnetic material 12 is in a heat release state, the shifting block 124 on the blade shaft 123 is shifted back to the original position after being blocked by the bump 204, the shifting block 124 is magnetically fixed by the magnetic block 16 in the original position, at this time, the angle of the blade 125 deflects to the original state, the plurality of blades 125 extract external air through the through grooves on the front end cover 7, the external air passes through the stator 10, the rotor 11 and the magnetic material 12 and carries out air cooling treatment on the external air, the external air passes through the through holes of the magnetic material 12 and then is discharged to the outside through the through grooves on the rear end cover 8, and further, the temperature reduction and heat exchange treatment inside the enclosure 1 is realized;
the auxiliary coil 151 is periodically electrified through the time relay 152 to the fourth spring 14, the fourth spring 14 periodically drives the magnetic material 12 to periodically reciprocate under the magnetic effect of the current, so that the magnetic material 12 performs reciprocating motion in the magnetic field of the stator 10, the magnetic material 12 generates a refrigeration effect, and the interior of the enclosure 1 forms a breathing heat exchange treatment, when the blade 125 is angularly deflected and draws outside air through the through slot on the front end cover 7, the discharged gas performs an inside-to-outside blowing action on the filter screen 9 on the rear end cover 8, so that dust on the surface of the filter screen 9 on the rear end cover 8 is blown off, when the blade 125 is angularly deflected and draws outside air through the through slot on the rear end cover 8, the discharged gas performs an inside-to-outside blowing action on the filter screen 9 on the front end cover 7, so that dust on the surface of the filter screen 9 on the front end cover 7 is blown off, and the blade 125 having the angular deflection realizes the internal breathing heat exchange cooling of the enclosure 1, the effect of removing dust from the filter screen 9 on the front end cover 7 and the rear end cover 8 is achieved, and the filtering effect of the filter screen 9 is improved;
be connected with the cushion socket 4 through supporting seat 3, buffer plate 17 and buffer block 401 are transmitted in traction motor's vibrations, buffer block 401 has also improved its stability when buffering traction motor through second spring 502, cooperation through support 506 and fifth spring 173 and third spring 505, further carry out shock attenuation processing to traction motor, avoid traction motor self operation plus trolley-bus operation, cause mechanical parts to appear because of the condition that the shake hits and lead to wearing and tearing aggravation, traction motor's life has been prolonged.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a hollow shaft permanent magnetism traction motor according to dynamic air current self-cooling regulation which characterized in that: this hollow shaft permanent magnetism traction motor according to self-cooling of developments air current is adjusted includes casing (1), the outside of casing (1) is provided with a plurality of heat dissipation fins, be provided with wiring end (6) on casing (1), the both ends of casing (1) are provided with front end housing (7) and rear end cap (8) respectively, it is connected with spindle (2) to rotate through the bearing between front end housing (7) and rear end cap (8), be provided with stator (10) in casing (1), be provided with rotor (11) on spindle (2), be provided with cooling module in casing (1), the lower extreme of casing (1) is provided with damper.
2. A self-cooling regulated hollow shaft permanent magnet traction motor according to dynamic air flow as claimed in claim 1, wherein: the cooling assembly comprises a magnetic material (12), a plurality of through holes are formed in the magnetic material (12), a plurality of first sliding grooves (201) are formed in the crankshaft (2), a second sliding groove (202) is formed in each first sliding groove (201), a convex block (204) is connected in each second sliding groove (202) in a sliding mode, and a first spring (203) is arranged between each convex block (204) and each second sliding groove (202).
3. A self-cooling regulated hollow shaft permanent magnet traction motor according to dynamic air flow according to claim 2, characterized in that: the surface of the inner ring of the magnetic material (12) is provided with a plurality of limiting blocks (121), the limiting blocks (121) respectively slide in a plurality of first sliding grooves (201), a functional groove (122) is formed in each limiting block (121), and the inner ring of the magnetic material (12) is rotatably connected with a plurality of blade shafts (123).
4. A self-cooling regulated hollow shaft permanent magnet traction motor in accordance with dynamic air flow according to claim 3, wherein: one end of each of the blade shafts (123) is located in each of the functional grooves (122), a shifting block (124) is mounted at one end of each of the blade shafts (123), and a blade (125) is mounted at the other end of each of the blade shafts (123).
5. A self-cooling regulated hollow shaft permanent magnet traction motor according to dynamic air flow according to claim 4, characterized in that: the protruding block (204) slides in the functional groove (122), the protruding block (204) is connected with the shifting block (124) in a sliding mode, two magnetic blocks (16) are arranged in the limiting block (121), and the shifting block (124) is connected with the magnetic blocks (16) in a magnetic mode.
6. A self-cooling regulated hollow shaft permanent magnet traction motor according to dynamic air flow, according to claim 5, characterized in that: be provided with second magnet (801) and first magnet (802) in rear end cap (8), second magnet (801) and first magnet (802) form the magnetic field, be provided with driven ring (15) on spindle (2), driven ring (15) surface is around being equipped with auxiliary coil (151), auxiliary coil (151) are cutting the magnetic induction line in the magnetic field, auxiliary coil (151) electric connection has time relay (152).
7. A self-cooling regulated hollow shaft permanent magnet traction motor in accordance with dynamic air flow as claimed in claim 6, wherein: a plurality of telescopic rods (13) and a fourth spring (14) are connected between the driven ring (15) and the inner ring of the magnetic material (12), the surface of each telescopic rod (13) is sleeved with the fourth spring (14), and the fourth springs (14) are electrically connected with the auxiliary coil (151) through a time relay (152).
8. A self-cooling regulated hollow shaft permanent magnet traction motor in accordance with dynamic air flow as defined in claim 7 wherein: fourth spring (14) and magnetic material (12) inner ring insulation are connected, driven ring (15) and magnetic material (12) follow crankshaft (2) synchronous revolution, telescopic motion is done through fourth spring (14) in magnetic material (12) between stator (10) and casing (1), a plurality of logical grooves have been seted up on front end housing (7) and rear end housing (8), every it all is provided with filter screen (9) to lead to the inslot.
9. A self-cooling regulated hollow shaft permanent magnet traction motor in accordance with dynamic air flow as claimed in claim 8, wherein: damping component includes supporting seat (3) and base (5), the lower extreme of supporting seat (3) installation and casing (1), be connected with buffer seat (4) on supporting seat (3), buffer block (401) are installed to the lower extreme of buffer seat (4), third spout (501) and buffer slot have been seted up in base (5), be provided with second spring (502) between buffer block (401) and third spout (501).
10. A self-cooling regulated hollow shaft permanent magnet traction motor in accordance with dynamic air flow as claimed in claim 9, wherein: set up fourth spout (503) in the buffer slot, be provided with two first guide blocks (504) in fourth spout (503), two be connected with third spring (505) between first guide block (504), the lower extreme of buffer seat (4) is provided with buffer board (17), set up fifth spout (171) in buffer board (17), sliding connection has two second guide blocks (172) in fifth spout (171), two be connected with fifth spring (173) between second guide block (172), be connected with support (506) between second guide block (172) and first guide block (504).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210410071.3A CN114598106A (en) | 2022-04-19 | 2022-04-19 | Hollow shaft permanent magnet traction motor capable of self-cooling adjustment according to dynamic air flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210410071.3A CN114598106A (en) | 2022-04-19 | 2022-04-19 | Hollow shaft permanent magnet traction motor capable of self-cooling adjustment according to dynamic air flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114598106A true CN114598106A (en) | 2022-06-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210410071.3A Withdrawn CN114598106A (en) | 2022-04-19 | 2022-04-19 | Hollow shaft permanent magnet traction motor capable of self-cooling adjustment according to dynamic air flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114598106A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114923176A (en) * | 2022-06-09 | 2022-08-19 | 上海域德环保工程有限公司 | Multistage harmless treatment's chemical burns device |
| CN116231945A (en) * | 2023-05-04 | 2023-06-06 | 山东高原油气装备有限公司 | Ground permanent magnet motor |
-
2022
- 2022-04-19 CN CN202210410071.3A patent/CN114598106A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114923176A (en) * | 2022-06-09 | 2022-08-19 | 上海域德环保工程有限公司 | Multistage harmless treatment's chemical burns device |
| CN116231945A (en) * | 2023-05-04 | 2023-06-06 | 山东高原油气装备有限公司 | Ground permanent magnet motor |
| CN116231945B (en) * | 2023-05-04 | 2023-07-18 | 山东高原油气装备有限公司 | Ground permanent magnet motor |
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Application publication date: 20220607 |