CN217956799U - Long-life micro motor - Google Patents

Abstract

The utility model provides a pair of long-life micro motor contains shell, rotor, magnetic path, and the rotor contains pivot, iron core winding, is provided with the oil storage subassembly in the pivot, and the oil storage subassembly contains cup, apron, and the cup top is provided with the appearance chamber that is used for storing lubricating oil, and the lateral wall of iron core winding, pivot, be provided with the oil transportation passageway between the appearance chamber, and the lubricating oil in the appearance chamber is carried to the lateral wall of iron core winding through the oil transportation passageway. Because be provided with the oil storage subassembly that can store lubricating oil in the pivot, the motor during operation will drive the oil storage subassembly and rotate, increased and held the mobility of intracavity lubricating oil, the lubricating oil that holds the intracavity will be through on the lateral wall of oil delivery passageway flow direction iron core winding, lubricating oil has blockked the direct contact of iron core winding and magnetic path and has played lubricated effect, let lubricating oil carry to between iron core winding and the magnetic path from holding the chamber continuously, can reduce the work wearing and tearing of motor effectively, improve the life of motor widely.

Description

Long-life micro motor

Technical Field

The utility model relates to a motor field indicates a long-life micro motor especially.

Background

The motor is used on various mechanical devices as drive arrangement, and the main rotor and the stator that contain of motor, iron core on the rotor can have certain friction when rotating with between the magnetic path of stator, along with frictional continuous lasting, iron core and magnetic path will be consumed by continuous wearing and tearing, have influenced the gyration performance of motor, and the iron powder of production also can aggravate the wearing and tearing of motor and worsen, has seriously influenced the life of motor.

Disclosure of Invention

The utility model aims to solve the problem that a long-life micro motor is provided, the life of motor is improved, the stable work of motor is guaranteed.

Solve above-mentioned technical problem according to the utility model provides a pair of long-life micro motor, contain the shell, the rotor, a plurality of evenly distributed are the magnetic path on the shell inner wall, the rotor contains the pivot, cup joint at the epaxial iron core winding of commentaries on classics, be provided with the oil storage subassembly in the pivot, the oil storage subassembly contains the cup, the apron, the cup top is provided with the appearance chamber that is used for storing lubricating oil, the apron can be dismantled and connect at the cup top in order to hold the chamber closure, the lateral wall of iron core winding, the pivot, be provided with the oil transportation passageway between the appearance chamber, lubricating oil in holding the chamber passes through the oil transportation passageway and carries to the lateral wall of iron core winding, the lateral wall of iron core winding adjoins with the medial surface of magnetic path.

Preferably, an external thread section is arranged on one side of the rotating shaft, internal thread holes matched with the external thread section are formed in the cup body and the cover plate in a penetrating mode, the internal thread holes are connected to the external thread section, the oil delivery channel comprises a main channel arranged inside the rotating shaft, a first channel arranged on the cup body and used for communicating the containing cavity with the main channel, and a plurality of second channels arranged on the iron core winding and used for communicating the outer side wall of the iron core winding with the main channel.

Preferably, the outer side wall of the core winding is provided with an oil reservoir.

Preferably, the housing comprises a bottom shell and an upper cover combined on the bottom shell, sleeve portions are arranged at the bottom of the bottom shell and the top of the upper cover, bearings matched with the sleeve portions are arranged on the sleeve portions, the bearing sleeves are arranged at the end portions of the rotating shafts, the end portions of the main channels are communicated with third channels extending to the side walls of the rotating shafts, and lubricating oil in the main channels flows into the space between the side walls of the rotating shafts and the inner rings of the bearings through the third channels.

Preferably, the commutator is sleeved on one side of the rotating shaft, the positive pin and the negative pin are respectively arranged on two sides of the top of the upper cover, electric brushes in contact with the commutator are welded at one ends of the positive pin and the negative pin, an oil seal located between the commutator and the cover plate is arranged on the inner wall of the bottom shell, and the oil seal is used for preventing lubricating oil flowing out of the cavity from flowing to the commutator and the electric brushes.

The utility model has the advantages that: the utility model provides a long-life micro motor, set up unique assembly structure, because be provided with the oil storage subassembly that can store lubricating oil in the pivot, the motor during operation will drive the oil storage subassembly and rotate, the mobility of holding intracavity lubricating oil has been increased, the lubricating oil that holds the intracavity will be through on the lateral wall of oil transportation passageway flow direction iron core winding, the direct contact of iron core winding and magnetic path has been blockked and lubricated effect has been played in the lubricating oil separation, let lubricating oil carry to between iron core winding and the magnetic path from holding the chamber continuously, can reduce the work wearing and tearing of motor effectively, the life of motor is improved widely.

Drawings

Fig. 1 illustrates a schematic cross-sectional structure of the present invention.

Fig. 2 illustrates an exploded view of the present invention.

The reference numbers illustrate: the magnetic block comprises a magnetic block 10, a rotating shaft 20, an external thread section 200, an iron core winding 21, an oil storage groove 210, a main channel 220, a first channel 221, a second channel 222, a third channel 223, a commutator 23, an oil storage assembly 30, a cup body 31, a containing cavity 310, an internal thread hole 311, a cover plate 32, a bottom shell 40, an upper cover 41, a sleeve part 42, a bearing 43, a positive pole pin 410, a negative pole pin 411, a brush 412 and an oil seal 44.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments.

All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without inventive effort, are within the scope of protection of the disclosure.

Refer to fig. 1-2.

The utility model provides a long-life micro motor, contain the shell, a rotor, a plurality of evenly distributed are magnetic path 10 on the shell inner wall, the rotor contains pivot 20, cup joint the iron core winding 21 in pivot 20, be provided with oil storage component 30 in the pivot 20, oil storage component 30 contains cup 31, apron 32, cup 31 top is provided with the appearance chamber 310 that is used for storing lubricating oil, apron 32 can be dismantled and connect at the cup 31 top in order to hold the chamber 310 closed, iron core winding 21's lateral wall, pivot 20, it is provided with the oil transportation passageway to hold between the chamber 310, the lubricating oil that holds in the chamber 310 is carried to iron core winding 21's lateral wall through the oil transportation passageway, iron core winding 21's lateral wall adjoins with the medial surface of magnetic path 10.

During specific assembly, firstly, lubricating oil is injected into the cavity 310, the cavity 310 is sealed by the cover plate 32, then the oil storage assembly 30 and the iron core winding 21 are sequentially assembled on the rotating shaft 20, the magnetic blocks 10 are adhered to the inner wall of the shell by using glue, then the rotor is assembled into the shell, the iron core winding 21 is surrounded by the magnetic blocks 10 distributed on the inner wall of the shell, and the outer side wall of the iron core winding 21, the rotating shaft 20 and the cavity 310 are communicated through the oil delivery channel. The use principle is that the oil storage assembly 30 capable of storing lubricating oil is arranged on the rotating shaft 20, the motor drives the oil storage assembly 30 to rotate when working, the mobility of the lubricating oil in the cavity 310 is increased, the lubricating oil in the cavity 310 flows to the outer side wall of the iron core winding 21 through the oil conveying channel, the lubricating oil blocks the direct contact between the iron core winding 21 and the magnetic block 10 and plays a role in lubricating, the lubricating oil is continuously conveyed between the iron core winding 21 and the magnetic block 10 from the cavity 310, the working abrasion of the motor can be effectively reduced, and the service life of the motor is greatly prolonged.

Based on the above embodiment, the external thread section 200 is disposed on one side of the rotating shaft 20, the cup body 31 and the cover plate 32 are both provided with the internal thread hole 311 matching with the external thread section 200, the internal thread hole 311 is connected to the external thread section 200, the oil delivery channel includes the main channel 220 disposed inside the rotating shaft 20, the first channel 221 disposed on the cup body 31 and communicating the cavity 310 with the main channel 220, and the plurality of second channels 222 disposed on the core winding 21 and communicating the outer sidewall of the core winding 21 with the main channel 220. When the oil storage assembly 30 is assembled on the rotating shaft 20, one end of the rotating shaft 20 is inserted into the internal threaded hole 311 of the oil storage assembly 30 and rotates, so that the internal threaded hole 311 is connected to the external threaded section 200, when the oil storage assembly 30 is assembled in place, a connecting pipeline communicated with one end of the first channel 221 is arranged on the main channel 220, the first channel 221 is communicated with the main channel 220, the iron core winding 21 is sleeved on the rotating shaft 20, when the iron core winding 21 is assembled in place, a connecting pipeline communicated with one end of the second channel 222 is arranged on the main channel 220, and the second channel 222 is communicated with the main channel 220, so that the main channel 220, the first channel 221, the second channel 222 and the accommodating cavity 310 are communicated, and the lubricating oil in the accommodating cavity 310 is conveniently conveyed.

Based on the above embodiment, the outer side wall of the core winding 21 is provided with the oil reservoir 210. Part of the lubricating oil flowing into the space between the iron core winding 21 and the magnetic block 10 is stored in the oil storage tank 210, so that the lubricating oil is continuously output from the oil storage tank 210 when the iron core winding 21 rotates, and the lubricating effect is improved.

Based on the above embodiment, the housing includes the bottom shell 40 and the upper cover 41 combined on the bottom shell 40, the bottom of the bottom shell 40 and the top of the upper cover 41 are both provided with the sleeve portion 42, the sleeve portion 42 is provided with the bearing 43 matched with the sleeve portion 42, the bearing 43 is sleeved on the end portion of the rotating shaft 20, the end portion of the main channel 220 is communicated with the third channel 223 extending to the side wall of the rotating shaft 20, and the lubricating oil in the main channel 220 flows into between the side wall of the rotating shaft 20 and the inner ring of the bearing 43 through the third channel 223. The lubricating oil in the main channel 220 can flow into the space between the rotating shaft 20 and the bearing 43 through the third channel 223 to lubricate the space between the rotating shaft 20 and the bearing 43, so that the abrasion of the rotating shaft 20 and the bearing 43 is reduced, and the service life of the motor is prolonged.

Based on the above embodiment, the commutator 23 is sleeved on one side of the rotating shaft 20, the positive pin 410 and the negative pin 411 are respectively arranged on two sides of the top of the upper cover 41, the brush 412 in contact with the commutator 23 is welded at one end of each of the positive pin 410 and the negative pin 411, the oil seal 44 between the commutator 23 and the cover plate 32 is arranged on the inner wall of the bottom case 40, the oil seal 44 is used for preventing the lubricating oil flowing out from the accommodating cavity 310 from flowing onto the commutator 23 and the brush 412, and therefore the problem that the commutator 23 and the brush 412 are in poor contact due to the fact that the lubricating oil is attached to the commutator 23 and the brush 412 can be avoided, and the normal operation of the motor is affected.

The above embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the technical solution of the present invention by those skilled in the art are all within the scope of the present invention as defined by the claims.

Claims (5)

1. The utility model provides a long-life micro motor, contains shell, rotor, a plurality of evenly distributed be in magnetic path on the shell inner wall, the rotor contains the pivot, cup joints change epaxial iron core winding, a serial communication port, be provided with the oil storage subassembly in the pivot, the oil storage subassembly contains cup, apron, the cup top is provided with the appearance chamber that is used for storing lubricating oil, the apron can be dismantled and connect the cup top in order to incite somebody to action it is closed to hold the chamber, be provided with the oil transportation passageway between the lateral wall of iron core winding, pivot, the appearance chamber, the lubricating oil that holds in the chamber passes through the oil transportation passageway to the lateral wall of iron core winding is carried, the lateral wall of iron core winding with the medial surface of magnetic path borders on.

2. The miniature motor with a long service life as claimed in claim 1, wherein an external thread section is provided on one side of said rotating shaft, an internal thread hole matching with said external thread section is provided through both said cup body and said cover plate, said internal thread hole is connected to said external thread section, said oil transportation channel comprises a main channel provided inside said rotating shaft, a first channel provided on said cup body for communicating said cavity with said main channel, and a plurality of second channels provided on said core winding for communicating said outer sidewall of said core winding with said main channel.

3. The long-life miniature motor of claim 2, wherein an oil reservoir is provided on an outer side wall of said core winding.

4. The long-life miniature motor according to any of claims 2-3, wherein said housing comprises a bottom casing and an upper cover assembled on said bottom casing, said bottom casing and said top cover are provided with sleeve portions, said sleeve portions are provided with bearings matching with said sleeve portions, said bearings are sleeved on the end portions of said rotating shafts, said end portions of said main channels are communicated with third channels extending to the side walls of said rotating shafts, and the lubricating oil in said main channels flows between said side walls of said rotating shafts and said inner rings of said bearings through said third channels.

5. The long-life miniature motor of claim 4, wherein a commutator is sleeved on one side of the rotating shaft, a positive electrode pin and a negative electrode pin are respectively arranged on two sides of the top of the upper cover, an electric brush in contact with the commutator is welded at one end of each of the positive electrode pin and the negative electrode pin, an oil seal between the commutator and the cover plate is arranged on the inner wall of the bottom shell, and the oil seal is used for preventing lubricating oil flowing out of the accommodating cavity from flowing onto the commutator and the electric brush.

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