CN211266641U - Permanent magnet direct current metal brush motor capable of automatically adjusting axial float gap - Google Patents
Permanent magnet direct current metal brush motor capable of automatically adjusting axial float gap Download PDFInfo
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- CN211266641U CN211266641U CN202020128826.7U CN202020128826U CN211266641U CN 211266641 U CN211266641 U CN 211266641U CN 202020128826 U CN202020128826 U CN 202020128826U CN 211266641 U CN211266641 U CN 211266641U
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- rotating shaft
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- gasket
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- 239000002184 metal Substances 0.000 title claims abstract description 10
- 239000004033 plastic Substances 0.000 claims abstract description 12
- 229920003023 plastic Polymers 0.000 claims abstract description 12
- 230000001105 regulatory effect Effects 0.000 claims abstract description 9
- 230000005389 magnetism Effects 0.000 claims abstract description 7
- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 3
- 230000001050 lubricating effect Effects 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 230000009191 jumping Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model belongs to the technical field of the motor and specifically relates to a permanent magnetism direct current metal brush motor of automatically regulated axial float clearance. The automatic regulating and jumping gap structure is mainly composed of a shaft end gasket, an oil-retaining bearing and a rotating shaft, wherein the shaft end gasket is arranged in a groove opening of the oil-retaining bearing and pressed into a plastic end cover to form an end cover assembly, the rotating shaft end face is contacted with the shaft end gasket, a reed assembly is arranged inside the rotating shaft, a shaft sleeve is arranged between the rotating shaft rear end and a casing, plastic magnets are arranged on two sides inside the casing, a bearing pressing plate and a protecting cover are arranged on the oil-retaining bearing, and a commutator, an annular pressure-sensitive piece and a rotor piece are wound outside the rotating shaft. The axial movement of the motor in operation caused by accumulated tolerance is avoided, and the problem of the stability of the air pressure output of the micro air pump is solved.
Description
Technical Field
The utility model belongs to the technical field of the motor and specifically relates to a permanent magnetism direct current metal brush motor of automatically regulated axial float clearance.
Background
The existing miniature metal brush direct current motor is generally made of galvanized steel sheets, the shell is formed by stretching in multiple processes, the tolerance of the length dimension of the shell is poor, and the depth tolerance of a bearing is large after the bearing is installed in the shell, so that the tolerance is a large factor causing large gap fluctuation; the micro metal brush direct current motor is generally made of nylon end covers, the end covers are formed by injection molding and are affected by different material shrinkage, and the large tolerance of the position depth of an end cover bearing is a large factor causing large gap fluctuation; the rotor assembly of the miniature brush direct current motor is generally formed by press mounting in multiple processes, the rotating shaft is pressed into a rotor sheet, pressed into a shaft sleeve and loaded into a commutator, and the tolerance of the assembled rotor assembly is accumulated in the multiple processes, so that the assembly size tolerance of the assembled rotor assembly is large, and the rotor assembly is a large factor causing large gap fluctuation; the motor of external air pump device usage is more and more, and is mostly automatic assembly, for satisfying output compressed air's stability, after motor shaft packs into the impeller, the more stable stability that does benefit to atmospheric pressure more in operation in-process impeller position, and is more and more high to the requirement in motor axial float clearance.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an automatic adjust permanent magnetism direct current metal brush motor in axial float clearance avoids the axial float of the motor operation that accumulative total tolerance arouses, and the adjustment improves little air pump air pressure output stability problem.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an automatically regulated axial float clearance's permanent magnetism direct current metal brush motor, its characterized in that mainly includes automatically regulated float clearance structure, automatically regulated float clearance structure comprises axle head gasket, oiliness bearing, pivot, the axle head gasket is located in the notch of oiliness bearing, and constitutes the end cover subassembly in the plastics end cover of impressing, pivot terminal surface and axle head gasket contact, the inside reed subassembly that is equipped with of pivot, and be equipped with the axle sleeve between pivot rear end and the casing, the inside both sides of casing are equipped with moulds the magnetism, oiliness bearing is equipped with bearing clamp plate and protecting cover, the outside of pivot is surrounded there are commutator, annular pressure-sensitive and rotor piece.
The utility model discloses the further improvement, axle head gasket material adopts the wear-resisting graphite material that has lubricating function.
The utility model discloses further improve, the pivot terminal surface adopts spherical structure. The axial shaft end adopts a spherical structure, so that the friction force between the axial shaft end and a gasket of the shaft end is reduced.
The utility model discloses further improve, pivot front end outside is equipped with two lugs.
The utility model discloses further improve, pivot parcel has the rotor subassembly.
The utility model discloses further improve, the rotor subassembly comprises the rotor piece.
The utility model discloses further improve, the oiliness bearing has two to arrange in plastics end cover and protecting cover respectively.
The utility model has the advantages that: 1. the shaft end gasket is firmly placed and fixed by adopting a wear-resistant graphite shaft end gasket with a lubricating function and a cylindrical oil-retaining bearing with a groove shape, the shaft end gasket is arranged and fixed by adopting a rotating shaft structure with spherical surfaces at two ends, a magnetic strip is arranged in the rotating shaft structure with an asymmetric length, a rotor is close to the end cover end in the running process of the motor, a rotating shaft ball head is in point contact with the shaft end gasket on the spherical surface of the rotating shaft, the friction force is small, the position of the rotor, which is attached to one end of the end cover, is kept when the rotor runs, is not influenced by the tolerance of other parts, the axial movement; 2. the flange can be installed on the motor, the motor is assembled through the regulation of screws to form the motor with the flange, two ends of a rotating shaft of the whole machine are fixed through special finish turning equipment, and the requirements of high flatness and verticality of the end face of the machine shell are adjusted through finish turning the surface of the flange of the whole machine; because the flange is installed, the height position of the end face of the shell of the flange is adjusted according to different requirements of customers, and the requirements of installation sizes of motors with different thicknesses can be met; 3. with customer's constant head tank, screw hole design on the flange, customer automation equipment can find the constant head tank fast, and high plane degree, perpendicular terminal surface make the automatic manipulator of customer end can a plurality of screw holes simultaneously pack into the equipment of motor flange terminal surface, great saving assembly cost and precision, can also be free satisfy with the distance requirement of appointed installation terminal surface.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the plastic end cap structure of the present invention.
Fig. 3 is a schematic structural diagram of the rotor assembly of the present invention.
In the figure, 1-shaft end gasket, 2-oil bearing, 3-rotating shaft, 4-lug, 5-plastic end cover, 6-end cover, 7-commutator, 8-annular pressure-sensitive, 9-plastic magnet, 10-rotor sheet, 11-casing, 12-shaft sleeve, 13-protective cover, 14-bearing pressure plate and 15-reed component.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example (b): as shown in fig. 1, fig. 2 and fig. 3, a permanent magnet direct current metal brush motor capable of automatically adjusting axial float gap is characterized by mainly comprising an automatically adjusting float gap structure, wherein the automatically adjusting float gap structure is composed of a shaft end gasket 1, an oil bearing 2 and a rotating shaft 3, the shaft end gasket 1 is arranged in a notch of the oil bearing 2 and pressed into a plastic end cover 5 to form an end cover 6 assembly, the end surface of the rotating shaft 3 is contacted with the shaft end gasket 1, a spring assembly 15 is arranged inside the rotating shaft 3, a shaft sleeve 12 is arranged between the rear end of the rotating shaft 3 and a casing 11, plastic magnets 9 are arranged on two sides inside the casing 11, the oil bearing 2 is provided with a bearing pressure plate 14 and a protective cover 13, and a commutator 7, an annular pressure sensitive 8 and a rotor sheet 10 are wound outside the rotating shaft 3.
In this embodiment, the shaft end gasket 1 is made of a wear-resistant graphite material with a lubricating function.
In this embodiment, the end surface of the rotating shaft 3 adopts a spherical structure. The axial shaft end adopts a spherical structure, so that the friction force between the axial shaft end and the shaft end gasket 4 is reduced.
In this embodiment, two lugs 4 are disposed outside the front end of the rotating shaft 3.
In this embodiment, the rotating shaft 3 is wrapped with a rotor assembly.
In this embodiment, the rotor assembly is formed of rotor sheets 10.
In this embodiment, two oil-retaining bearings 2 are respectively disposed in the plastic end cap 5 and the protecting cover 13.
In the embodiment, the fixed shaft end gasket 1 is firmly placed on the cylindrical oil-retaining bearing 2 with the groove shape, and the connection is reliable; the magnetic strips are arranged in an asymmetric length design, so that the motor automatically leans against a specified end cover end when running, and the shaft extension position is stable.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides an automatically regulated axial float clearance's permanent magnetism direct current metal brush motor, its characterized in that mainly includes automatically regulated float clearance structure, automatically regulated float clearance structure comprises axle head gasket, oiliness bearing, pivot, the axle head gasket is located in the notch of oiliness bearing, and constitutes the end cover subassembly in the plastics end cover of impressing, pivot terminal surface and axle head gasket contact, the inside reed subassembly that is equipped with of pivot, and be equipped with the axle sleeve between pivot rear end and the casing, the inside both sides of casing are equipped with moulds the magnetism, oiliness bearing is equipped with bearing clamp plate and protecting cover, the outside of pivot is surrounded there are commutator, annular pressure-sensitive and rotor piece.
2. The motor of claim 1, wherein the shaft end gasket is made of wear-resistant graphite with a lubricating function.
3. The motor of claim 1, wherein the end surface of the rotating shaft is of a spherical structure.
4. The motor of claim 1, wherein two lugs are disposed outside the front end of the shaft.
5. The motor of claim 1, wherein the shaft is wrapped with a rotor assembly.
6. The motor of claim 5, wherein the rotor assembly is formed by a rotor plate.
7. The motor of claim 1, wherein two of said oil-retaining bearings are disposed in said plastic end cap and said shield, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020128826.7U CN211266641U (en) | 2020-01-20 | 2020-01-20 | Permanent magnet direct current metal brush motor capable of automatically adjusting axial float gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020128826.7U CN211266641U (en) | 2020-01-20 | 2020-01-20 | Permanent magnet direct current metal brush motor capable of automatically adjusting axial float gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211266641U true CN211266641U (en) | 2020-08-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020128826.7U Active CN211266641U (en) | 2020-01-20 | 2020-01-20 | Permanent magnet direct current metal brush motor capable of automatically adjusting axial float gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211266641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022238931A3 (en) * | 2021-05-11 | 2023-02-09 | Intex Industries Xiamen Co. Ltd. | A low-loss motor and a drive circuit thereof |
-
2020
- 2020-01-20 CN CN202020128826.7U patent/CN211266641U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022238931A3 (en) * | 2021-05-11 | 2023-02-09 | Intex Industries Xiamen Co. Ltd. | A low-loss motor and a drive circuit thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220106 Address after: 213125 No. 8, Kunlun Road, Xinbei District, Changzhou City, Jiangsu Province Patentee after: FULLING & CEIEC Co.,Ltd. Address before: 213125 No. 7, Kunlun Road, Sanjing Industrial Park, Xinbei District, Changzhou City, Jiangsu Province Patentee before: FULLING PRODUCTS Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 213125 No. 8, Kunlun Road, Xinbei District, Changzhou City, Jiangsu Province Patentee after: Changzhou Fulin Zhongdian Intelligent Technology Co.,Ltd. Country or region after: China Address before: 213125 No. 8, Kunlun Road, Xinbei District, Changzhou City, Jiangsu Province Patentee before: FULLING & CEIEC Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |