CN110896261A

CN110896261A - Double-stator magnetic field permanent magnet direct current coreless motor

Info

Publication number: CN110896261A
Application number: CN201911113754.7A
Authority: CN
Inventors: 赵锦盛
Original assignee: Hunan Rongli Electric Machinery Co Ltd
Current assignee: Hunan Rongli Electric Machinery Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-03-20
Anticipated expiration: 2039-11-14
Also published as: CN110896261B

Abstract

The invention discloses a double-stator magnetic field permanent magnet direct current coreless motor which comprises a motor shell and a disc, wherein the left side of the surface of the motor shell is fixedly connected with the inner wall of the disc, the left side of the motor shell is connected with a front cover through a bolt and a thread, the middle part of the front cover is rotatably connected with a transmission shaft, the top and the bottom of the left side of the front cover are both provided with an oil storage tank, and the top and the bottom of the left side of the front cover are both positioned on the left side of the oil storage tank and are hinged with a sealing cover. This two stator magnetic field permanent magnetism direct current coreless motor has all seted up the oil storage tank through the left top of protecgulum and bottom, is convenient for store lubricating grease and places, and lubricating grease is lubricated at the in-process of this coreless motor operation to the flow direction bearing, need not unpack whole motor cover apart and lubricate, easy operation, and it is more convenient to lubricate, reduces the wear rate of bearing, has prolonged the life of this motor.

Description

Double-stator magnetic field permanent magnet direct current coreless motor

Technical Field

The invention relates to the technical field of direct-current coreless motors, in particular to a double-stator magnetic field permanent magnet direct-current coreless motor.

Background

The coreless motor has outstanding energy-saving property, sensitive and convenient control property and stable running property, the technology advancement is very obvious, the coreless motor is used as a high-efficiency energy conversion device and represents the development direction of the motor in many fields, the coreless motor structurally breaks through the rotor structure form of the traditional motor, a coreless rotor, also called a coreless rotor, is adopted, the novel rotor structure thoroughly eliminates the electric energy loss caused by the eddy current formed by an iron core, simultaneously the weight and the rotational inertia are greatly reduced, thereby the mechanical energy loss of the rotor is reduced, the running property of the motor is greatly improved due to the structural change of the rotor, the coreless motor not only has outstanding energy-saving property, but also more importantly has the control and dragging property which can not be achieved by the iron core motor, the coreless motor is divided into a brush type coreless motor and a brushless type coreless motor, the rotor of the brush coreless motor is coreless, the stator of the brushless coreless motor is coreless, and the winding adopts a delta connection method.

The use of present coreless motor is more and more extensive, consequently more and more high to its requirement, the motor is at long-time during operation, the wearing and tearing that generate heat easily of inside bearing, need lubricate inside bearing, but at present generally need unpack the motor lid apart just can lubricate the bearing, complex operation, the time of cost is longer, it is lubricated inconvenient, and current coreless motor coil is bulky, thereby lead to torsion coefficient to be difficult to improve, work efficiency is low, can not satisfy the demand in market.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a double-stator magnetic field permanent magnet direct current coreless motor, which solves the problems that the bearing can be lubricated only by disassembling a motor cover, the operation is complicated, the consumed time is long, the lubrication is inconvenient, and the torque coefficient is difficult to improve and the working efficiency is low due to the large coil volume of the conventional coreless motor.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a double-stator magnetic field permanent magnet direct current coreless cup motor comprises a motor shell and a disc, wherein the left side of the surface of the motor shell is fixedly connected with the inner wall of the disc, the left side of the motor shell is connected with a front cover through bolt threads, the middle part of the front cover is rotatably connected with a transmission shaft, oil storage tanks are respectively arranged at the left top and the bottom of the front cover, sealing covers are hinged at the left top and the bottom of the front cover and are positioned at the left sides of the oil storage tanks, movable grooves are respectively arranged at the left top and the bottom of the front cover and are positioned at one sides of the sealing covers, sliding plates are respectively fixedly connected at the two sides of the top and the two sides of the bottom of the inner wall of the movable groove, a supporting plate is slidably connected between the two opposite sides of the top and the bottom of the inner wall of the movable groove and is positioned at one side opposite to the two sliding plates, and, the equal fixedly connected with fixed block in both sides of spring one side is kept away from to the backup pad, and the three hornblocks of one side fixedly connected with of backup pad are kept away from to the fixed block, the left side swing joint of sealed lid has the kelly with three hornblock looks adaptations.

Preferably, the one end that the kelly is close to sealed lid runs through sealed lid and extends to the outside of sealed lid, the one end fixedly connected with handle that sealed lid was kept away from to the kelly, one side fixedly connected with stopper that the activity inslot wall was kept away from to the slide.

Preferably, the surface of transmission shaft just is located the right side fixedly connected with bearing of oil storage tank, there is the back lid on motor housing's right side through bolt threaded connection.

Preferably, one end of the transmission shaft close to the front cover penetrates through the front cover and extends to the outside of the front cover, and one end of the transmission shaft extending to the outside of the front cover is rotatably connected with the left side of the rear cover.

Preferably, the surface of the transmission shaft and the inner part of the motor shell are fixedly connected with a shaft sleeve, and the surface of the front cover and the inner part of the motor shell are sleeved with an inner stator.

Preferably, the outer surface of the inner stator and the inner sleeve positioned on the motor shell are provided with magnetic steel, and the inner surface of the motor shell is fixedly connected with the outer stator.

Preferably, a hollow cup armature coil is fixedly connected between the inner surface of the outer stator and the outer surface of the magnetic steel, and a commutator is sleeved on the right side of the surface of the transmission shaft and inside the motor shell.

Preferably, the bottom of the commutator is fixedly connected with an electric brush, and the surface of the disc is provided with a mounting hole.

(III) advantageous effects

The invention provides a double-stator magnetic field permanent magnet direct current coreless motor. Compared with the prior art, the method has the following beneficial effects:

(1) the double-stator magnetic field permanent magnet direct current coreless motor is characterized in that oil storage tanks are respectively arranged at the left top and the left bottom of a front cover, sealing covers are hinged at the left sides of the oil storage tanks at the left top and the left bottom of the front cover, movable tanks are respectively arranged at the left top and the left bottom of the front cover and at one side of the sealing covers, sliding plates are respectively and fixedly connected with the two sides of the top and the two sides of the bottom of the inner wall of each movable tank, a supporting plate is connected between the two opposite sides of the two sliding plates in a sliding manner, springs are respectively and fixedly connected between the two sides of the top and the two sides of the bottom of the inner wall of each movable tank and at one side of the supporting plate, one ends of the springs, far away from the inner wall of each movable tank, are fixedly connected with fixed blocks at the two sides of the supporting plate, far, the hollow cup motor has the advantages that the lubricating grease is convenient to store and place, the lubricating grease can lubricate the bearing in the running process of the hollow cup motor, the whole motor cover does not need to be disassembled for lubrication, the operation is simple, the lubrication is more convenient, the wear rate of the bearing is reduced, and the service life of the motor is prolonged.

(2) This two stator magnetic field permanent magnetism direct current coreless motor, the inside cover that just is located motor housing through the surface of protecgulum is equipped with the inner stator, the surface of inner stator and the inside cover that is located motor housing are equipped with the magnet steel, motor housing's internal surface fixedly connected with outer stator, fixedly connected with coreless armature coil between outer stator's the internal surface and the surface of magnet steel, the coil of this motor is soaked with insulating cement after the coiling is accomplished and is covered, the intensity of coil has been strengthened, can transmit bigger torsion, provide higher rotational speed, thereby work efficiency has been improved.

(3) This two stator magnetic field permanent magnetism direct current coreless motor, through the inner wall fixed connection of the left side on motor housing surface and disc, the mounting hole has been seted up on the surface of disc, is convenient for carry out fixed connection, easy operation, convenient to use is swift to this coreless motor and outside.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a cross-sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of a portion of the invention at A in FIG. 2;

fig. 4 is a side view of the internal structure of the present invention.

In the figure, 1 motor shell, 2 discs, 3 front covers, 4 transmission shafts, 5 oil storage tanks, 6 sealing covers, 7 sliding plates, 8 supporting plates, 9 springs, 10 fixing blocks, 11 triangular blocks, 12 clamping rods, 13 handles, 14 limiting blocks, 15 bearings, 16 rear covers, 17 shaft sleeves, 18 inner stators, 19 magnetic steels, 20 outer stators, 21 hollow cup armature coils, 22 commutators, 23 brushes, 24 mounting holes and 25 movable tanks.

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. 1-4, an embodiment of the present invention provides a technical solution: a double-stator magnetic field permanent magnet direct current coreless motor comprises a motor shell 1 and a disc 2, wherein the left side of the surface of the motor shell 1 is fixedly connected with the inner wall of the disc 2, the left side of the motor shell 1 is connected with a front cover 3 through a bolt thread, the middle part of the front cover 3 is rotatably connected with a transmission shaft 4, the surface of the transmission shaft 4 is fixedly connected with a shaft sleeve 17 positioned in the motor shell 1, the surface of the front cover 3 and positioned in the motor shell 1 are sleeved with an inner stator 18, the outer surface of the inner stator 18 and positioned in the motor shell 1 are sleeved with a magnetic steel 19, the inner surface of the motor shell 1 is fixedly connected with an outer stator 20, a coreless armature coil 21 is fixedly connected between the inner surface of the outer stator 20 and the outer surface of the magnetic steel 19, the coreless armature coil 21 of the motor is coated with insulating glue after winding is finished, the strength of the coil is, providing higher rotating speed, thereby improving the working efficiency, the commutator 22 is sleeved on the right side of the surface of the transmission shaft 4 and positioned inside the motor shell 1, the bottom of the commutator 22 is fixedly connected with an electric brush 23, the surface of the disc 2 is provided with a mounting hole 24, the motor is conveniently and fixedly connected with the outside through the arrangement of the disc 2 and the mounting hole 24, one end of the transmission shaft 4 close to the front cover 3 penetrates through the front cover 3 and extends to the outside of the front cover 3, one end of the transmission shaft 4 extending to the outside of the front cover 3 is rotatably connected with the left side of the rear cover 16, the bearing 15 is fixedly connected on the surface of the transmission shaft 4 and positioned on the right side of the oil storage tank 5, the rear cover 16 is connected on the right side of the motor shell 1 through bolt threads, the oil storage tank 5 is respectively arranged on the left top and bottom of the front cover 3, lubricating grease is stored in the oil storage, the left top and the left bottom of the front cover 3 are both positioned at the left side of the oil storage tank 5 and are hinged with a sealing cover 6, the oil storage tank 5 is convenient to seal through the sealing cover 6, the left top and the left bottom of the front cover 3 are both provided with a movable groove 25 at one side of the sealing cover 6, both sides of the top of the inner wall of the movable groove 25 and both sides of the bottom are both fixedly connected with sliding plates 7, a support plate 8 is slidably connected between the opposite sides of the two sliding plates 7, both sides of the top of the inner wall of the movable groove 25 and both sides of the bottom are both fixedly connected with springs 9 between the opposite sides of the two sliding plates 7, the springs 9 can be replaced to ensure the elasticity, one end of the springs 9 far away from the inner wall of the movable groove 25 is fixedly connected with one side of the support plate 8, both sides of the support plate 8, the left side swing joint of sealed lid 6 has the kelly 12 with the adaptation of triangle-shaped piece 11 looks, the one end of kelly 12 is triangle-shaped, with the adaptation of triangle-shaped piece 11 looks, be convenient for block kelly 12, the one end that kelly 12 is close to sealed lid 6 runs through sealed lid 6 and extends to the outside of sealed lid 6, one end fixedly connected with handle 13 of sealed lid 6 is kept away from to kelly 12, slide 7 keeps away from one side fixedly connected with stopper 14 of activity groove 25 inner wall, this motor is a very ripe technical field simultaneously, the cooperation of inside other parts is prior art in this field, these characteristics have only been used to this motor, specifically no longer give unnecessary details.

When the motor is used, the clamping rod 12 is pulled towards the outside of the movable groove 25, the clamping rod 12 extrudes the triangular block 11 in the process of moving towards the outside of the movable groove 25, the triangular block 11 extrudes the supporting plate 8 backwards, the supporting plate 8 extrudes the spring 9 backwards, the clamping rod 12 can move out of the movable groove 25 and the sealing cover 6, the sealing cover 6 can be opened, lubricating grease is placed in the oil storage groove 5, after the lubricating grease is completed, the sealing cover 6 is closed on the oil storage groove 5 again, the clamping rod 12 is inserted into the movable groove 25 again, the clamping rod 12 extrudes the triangular block 11, the triangular block 11 extrudes the supporting plate 8 backwards, the supporting plate 8 extrudes the spring 9 backwards, the clamping rod 12 passes through the triangular block 11 and is in contact with one side of the movable groove 25, meanwhile, the spring 9 rebounds under the stress to drive the supporting plate 8 and the triangular block 11 to recover to the original position, the clamping rod 12 is limited, and in the process of the, the temperature rises, so that lubricating grease flows to the bearing 15 to lubricate the bearing, the coreless armature coil 21 of the motor is soaked by insulating glue after the winding is finished, the strength of the coil is enhanced, larger torsion can be transmitted, higher rotating speed is provided, and the motor is fixedly connected with the outside through the mounting hole 24 on the disc 2.

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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a two stator magnetic field permanent magnetism direct current coreless motor, includes motor housing (1) and disc (2), the left side on motor housing (1) surface and the inner wall fixed connection of disc (2), its characterized in that: the motor is characterized in that the left side of the motor shell (1) is connected with a front cover (3) through a bolt thread, the middle part of the front cover (3) is rotatably connected with a transmission shaft (4), oil storage grooves (5) are formed in the left top and the bottom of the front cover (3), a sealing cover (6) is hinged to the left side of the oil storage groove (5) and positioned at the left top and the bottom of the front cover (3), movable grooves (25) are formed in the left top and the bottom of the front cover (3) and positioned at one sides of the sealing covers (6), sliding plates (7) are fixedly connected to the two sides of the top and the two sides of the bottom of the inner wall of each movable groove (25), a support plate (8) is slidably connected between the two opposite sides of the top and the two sides of the bottom of the inner wall of each movable groove (25) and a spring (9) is fixedly connected, and spring (9) keep away from one side fixed connection of one end and backup pad (8) of activity groove (25) inner wall, the equal fixedly connected with fixed block (10) in both sides of spring (9) one side is kept away from in backup pad (8), and three hornblocks (11) of one side fixedly connected with of backup pad (8) are kept away from in fixed block (10), the left side swing joint of sealed lid (6) has kelly (12) with three hornblocks (11) looks adaptations.

2. A dual stator field permanent magnet dc coreless motor according to claim 1, wherein: one end of the clamping rod (12) close to the sealing cover (6) penetrates through the sealing cover (6) and extends to the outside of the sealing cover (6), one end of the clamping rod (12) far away from the sealing cover (6) is fixedly connected with a handle (13), and one side of the sliding plate (7) far away from the inner wall of the movable groove (25) is fixedly connected with a limiting block (14).

3. A dual stator field permanent magnet dc coreless motor according to claim 1, wherein: the surface of transmission shaft (4) just is located right side fixedly connected with bearing (15) of oil storage tank (5), there is back lid (16) right side of motor housing (1) through bolt threaded connection.

4. A dual stator field permanent magnet dc coreless motor according to claim 3, wherein: the one end that transmission shaft (4) is close to protecgulum (3) runs through protecgulum (3) and extends to the outside of protecgulum (3), transmission shaft (4) extend to the one end of the outside of protecgulum (3) and the left side of hou gai (16) is rotated and is connected.

5. A dual stator field permanent magnet dc coreless motor according to claim 1, wherein: the surface of transmission shaft (4) just is located the inside fixedly connected with axle sleeve (17) of motor housing (1), the surface of protecgulum (3) just is located the inside cover of motor housing (1) and is equipped with interior stator (18).

6. The double-stator magnetic field permanent magnet direct current coreless motor of claim 5, wherein: the outer surface of the inner stator (18) and the inner sleeve positioned on the motor shell (1) are provided with magnetic steel (19), and the inner surface of the motor shell (1) is fixedly connected with an outer stator (20).

7. The double-stator magnetic field permanent magnet direct current coreless motor of claim 6, wherein: fixedly connected with air core cup armature coil (21) between the internal surface of outer stator (20) and the surface of magnet steel (19), the right side on transmission shaft (4) surface just is located the inside cover of motor housing (1) and is equipped with commutator (22).

8. A dual stator field permanent magnet dc coreless motor according to claim 7, wherein: the bottom of the commutator (22) is fixedly connected with an electric brush (23), and the surface of the disc (2) is provided with a mounting hole (24).