CN210490594U - High-strength stable motor structure - Google Patents
High-strength stable motor structure Download PDFInfo
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- CN210490594U CN210490594U CN201921704055.5U CN201921704055U CN210490594U CN 210490594 U CN210490594 U CN 210490594U CN 201921704055 U CN201921704055 U CN 201921704055U CN 210490594 U CN210490594 U CN 210490594U
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Abstract
The utility model belongs to the technical field of the motor, concretely relates to stable motor structure of high strength, it includes: the device comprises a tubular casing, a front end cover and a rear end cover which are arranged at two ends of the tubular casing, and a rotor, a permanent magnet, a carbon brush and a brush holder which are arranged in the tubular casing; wherein the brush holder is closed at one end; and a spring is arranged between the closed end of the brush holder and the carbon brush, so that the spring rebounds to push the carbon brush to be in contact with the commutator. This stable motor structure of high strength has solved carbon brush and commutator contact failure technical problem, can both guarantee under various rotational speed and temperature environment that the contact of carbon brush and commutator is good, and then has improved the life-span and the operating stability of motor, has strengthened the structural strength of motor, makes it to bear higher axial operating force, specially adapted all kinds of push rod motors.
Description
Technical Field
The utility model belongs to the technical field of the motor, concretely relates to stable motor structure of high strength.
Background
As shown in fig. 4, the conventional motor generally uses a beryllium bronze reed to drive a carbon brush to contact with a commutator, but such a motor has the following problems:
1. the beryllium bronze reed has small resilience coefficient, so that the contact force between the carbon brush and the commutator is small, and the condition of poor contact between the carbon brush and the commutator is easy to occur in the high-speed running process of the motor.
2. The reed structure can not support the strip-shaped carbon brush, the short carbon brush has short service life, and the problem of poor contact between the carbon brush and the commutator can be caused after long-term use.
3. The spring plate structure can not keep stable elasticity, and the contact angle of the carbon brush and the commutator is easy to have errors, so that poor contact is caused.
4. The reed has poor heat resistance, influences the overall technical index of the motor, and is easy to cause poor contact due to errors.
5. The traditional motor adopts a front end cover and an iron sheet casing integrated structure, the rear end cover adopts a plastic piece, and the plastic piece cannot bear the high temperature of the motor during working and is easy to deform. The motor is failed and riveted with the shell, and the problems of low strength and low precision are solved, and the high-strength axial working force cannot be borne.
6. The iron sheet thickness is too thin, magnetic leakage can occur, and the long-time working performance of the motor is unstable.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a stable motor structure of high strength to solve carbon brush and commutator contact failure technical problem.
In order to solve the technical problem, the utility model provides a stable motor structure of high strength, include:
the device comprises a tubular casing, a front end cover and a rear end cover which are arranged at two ends of the tubular casing, and a rotor, a permanent magnet, a carbon brush and a brush holder which are arranged in the tubular casing; wherein
One end of the brush holder is closed; and a spring is arranged between the closed end of the brush holder and the carbon brush, so that the spring rebounds to push the carbon brush to be in contact with the commutator.
Further, the carbon brush and the spring are fixed in the brush holder; and
the spring is close to the closed end of the brush holder, and the carbon brush is close to the open end of the brush holder.
Furthermore, the front end cover and the rear end cover are respectively connected with the tubular casing through screws; and is
The front end cover and the rear end cover are respectively connected with the motor shaft through oil-retaining bearings.
Further, the inner wall of the tubular casing is fixed with a permanent magnet corresponding to the rotor;
the rotor is provided with a rotor winding which is communicated with a power supply so that the rotor drives the motor shaft to rotate.
Further, the gap between the permanent magnet and the rotor is 0.3-0.5 mm.
Further, shaft sleeves are respectively arranged between the commutator and the rotor and between the oil-containing bearing in the front end cover and the rotor so as to position the rotor.
Furthermore, a lead is arranged at the position of the tubular casing, which is positioned on the rear end cover;
the lead is electrically connected with the carbon brush through the brush braid.
Further, an oil baffle plate is arranged at the position, located on the rear end cover, of the motor shaft; to prevent oil in the oil bearing from entering the commutator.
Further, the tubular casing steel pipe.
Further, the front end cover and the rear end cover are made of zinc alloy.
The beneficial effects of the utility model are that, the utility model discloses a stable motor structure of high strength, include: the device comprises a tubular casing, a front end cover and a rear end cover which are arranged at two ends of the tubular casing, and a rotor, a permanent magnet, a carbon brush and a brush holder which are arranged in the tubular casing; wherein the brush holder is closed at one end; and a spring is arranged between the closed end of the brush holder and the carbon brush, so that the spring rebounds to push the carbon brush to contact with the commutator, good contact between the carbon brush and the commutator can be ensured in various rotating speeds and temperature environments, and the service life and the running stability of the motor are further improved.
The tubular casing is made of steel pipe instead of iron sheet, the front end cover is made of zinc alloy end cover instead of iron sheet end cover integrated with the tubular casing, and the rear end cover is made of zinc alloy end cover instead of plastic end cover, so that the structural strength of the motor is enhanced, and the motor can bear higher axial working force.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a preferred embodiment of a high strength stabilized motor structure of the present invention;
FIG. 2 is a schematic right side view of a preferred embodiment of the braid of the present invention;
FIG. 3 is a schematic cross-sectional view of a preferred embodiment of the screw of the present invention;
fig. 4 is a schematic cross-sectional view of a prior art motor construction.
In the figure:
the motor comprises a motor shaft 1, a rear end cover 2, a tubular casing 3, a spring 4, a carbon brush 5, a brush holder 6, a permanent magnet 7, a rotor 8, a rotor winding 9, a front end cover 10, an oil-retaining bearing 11, a shaft sleeve 12, a commutator 13, a lead 14, a casing hole 15, a gasket 16, an oil baffle plate 17, a brush braid 18, a welding spot 19, a screw 20 and an insert 21.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are 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.
FIG. 1 is a schematic cross-sectional view of a preferred embodiment of a high strength stabilized motor structure of the present invention;
FIG. 2 is a schematic right side view of a preferred embodiment of the braid of the present invention;
fig. 3 is a schematic cross-sectional view of a preferred embodiment of the screw of the present invention.
As shown in fig. 1, the high-strength stable motor structure of the present embodiment includes: the device comprises a tubular casing 3, a front end cover 10 and a rear end cover 2 which are arranged at two ends of the tubular casing 3, and a rotor 8, a permanent magnet 7, a carbon brush 5 and a brush holder 6 which are arranged in the tubular casing 3; wherein the brush holder 6 is closed at one end; and the spring 4 is arranged between the closed end of the brush holder 6 and the carbon brush 5, so that the spring 4 rebounds to push the carbon brush 5 to contact with the commutator 13, the good contact between the carbon brush 5 and the commutator 13 can be ensured under various rotating speeds and temperature environments, the service life and the operation stability of the motor are further improved, the structural strength of the motor is enhanced, the motor can bear higher axial working force, and the push rod motor is particularly suitable for various push rod motors.
Optionally, the carbon brush 5 and the spring 4 are fixed in the brush holder 6; and the spring 4 is close to the closed end of the brush holder 6, the carbon brush 5 is close to the open end of the brush holder 6, the brush holder 6 can fix the carbon brush 5 and the spring 4, the running direction of the motor is ensured, and the service life and the running stability of the motor are improved.
Optionally, the front end cover 10 and the rear end cover 2 are respectively connected with the tubular casing 3 through a screw 20; and the front end cover 10 and the rear end cover 2 are respectively connected with the motor shaft 1 through the oil-retaining bearing 11 to support the motor shaft 1, so that the rotation stability of the motor shaft 1 is ensured, specifically, the front end cover 10 and the rear end cover 2 are limited through the screw rod 20, the front end cover 10 is fixed with the tubular casing 3 through the plug-in 21, and the rear end cover 2 is fixed with the tubular casing 3 through the plug-in 21.
Optionally, the permanent magnet 7 corresponding to the rotor 8 is fixed to the inner wall of the tubular casing 3, and specifically, the permanent magnet 7 may be fixed to the inner wall of the tubular casing 3 through a reed and an anaerobic adhesive; the rotor 8 is provided with a rotor winding 9 in communication with a power source such that the rotor 8 drives the motor shaft 1 to rotate, and specifically, the rotor winding 9 is wound in a groove perpendicular to and circumferential of the rotor 8, typically 3, 5, 7 grooves.
Preferably, the clearance between permanent magnet 7 and the rotor 8 is preferred 0.4mm, and then reduces the air loss and improves operating efficiency, and in this embodiment, 3 cast casings of casing 3 adopt the thick 10# steel pipe of 2mm, and the new construction has adopted 3 cast casings of thicker casing 3 and the bigger front end housing 10 of structural strength, rear end cap 2, has reduced whole magnetic leakage volume, improves motor operating efficiency to make the holistic axial force bearing capacity of motor very improve.
Optionally, shaft sleeves 12 are respectively arranged between the commutator 13 and the rotor 8 and between the oil-retaining bearing 11 in the front end cover 10 and the rotor 8 to position the rotor 8, so as to avoid axial runout of the rotor 8 and further ensure the rotational stability of the motor shaft 1.
Optionally, a lead 14 is arranged at the position of the tubular casing 3 on the rear end cover 2; specifically, a casing hole 15 is formed in the tubular casing 3, the lead 14 extends out of the casing hole 15, the lead 14 is electrically connected with the carbon brush 5 through the shunt 18, the lead 14 is made possible through the brush holder 6, and therefore the installation flexibility of the motor is increased, specifically, the shunt 18 is fixed on the circuit board through the welding point 19 in a welding mode, the lead 14 is also welded on the circuit board, and the lead 14 is electrically connected with the shunt 18 through an internal circuit of the circuit board.
Optionally, an oil baffle plate 17 is arranged at the position of the motor shaft 1, which is located at the rear end cover 2; to prevent oil in the oil-impregnated bearing 11 from entering the commutator 13, and specifically, a baffle 16 is provided inside the oil baffle 17 to adjust the shaft gap.
Optionally, the tubular casing 3 is a steel pipe, and the front end cover 10 and the rear end cover 2 are made of zinc alloy, so that the motor strength is improved, and the motor can bear higher axial working force.
In summary, in the high-strength stable motor structure of the embodiment, the spring 4 drives the carbon brush 5 to abut against the commutator 13, and the spring 4 has a beryllium bronze reed which is used for driving the carbon brush 5, so that the carbon brush 5 can be ensured to be in contact with the commutator 13 at various rotating speeds and temperature environments, and good contact is ensured, the spring 4 has a better telescopic performance than the reed, and the carbon brush 5 can be still driven to be in contact with the commutator 13 even if the carbon brush 5 is worn, so that the running stability of the motor is improved, the structural strength of the motor is enhanced, and the motor can bear higher axial working force, and is particularly suitable for various push rod motors.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A high strength stabilized motor structure comprising:
the device comprises a tubular casing, a front end cover and a rear end cover which are arranged at two ends of the tubular casing, and a rotor, a permanent magnet, a carbon brush and a brush holder which are arranged in the tubular casing; wherein
One end of the brush holder is closed; and a spring is arranged between the closed end of the brush holder and the carbon brush, so that the spring rebounds to push the carbon brush to be in contact with the commutator.
2. A high strength, stable motor structure as defined in claim 1,
the carbon brush and the spring are fixed in the brush holder; and
the spring is close to the closed end of the brush holder, and the carbon brush is close to the open end of the brush holder.
3. A high strength, stable motor structure as defined in claim 1,
the front end cover and the rear end cover are respectively connected with the tubular shell through screws; and is
The front end cover and the rear end cover are respectively connected with the motor shaft through oil-retaining bearings.
4. A high strength, stable motor structure as defined in claim 1,
the inner wall of the tubular casing is fixed with a permanent magnet corresponding to the rotor;
the rotor is provided with a rotor winding which is communicated with a power supply so that the rotor drives the motor shaft to rotate.
5. A high strength, stable motor structure as defined in claim 4,
the clearance between the permanent magnet and the rotor is 0.3-0.5 mm.
6. A high strength, stable motor structure as defined in claim 5,
shaft sleeves are respectively arranged between the commutator and the rotor and between the oil-containing bearing in the front end cover and the rotor so as to position the rotor.
7. A high strength, stable motor structure as defined in claim 6,
a lead is arranged at the position, located on the rear end cover, of the tubular shell;
the lead is electrically connected with the carbon brush through the brush braid.
8. A high strength, stable motor structure as defined in claim 7,
an oil baffle plate is arranged at the position, located on the rear end cover, of the motor shaft; to prevent oil in the oil bearing from entering the commutator.
9. A high strength, stable motor structure as defined in claim 1,
the tubular casing is a steel pipe.
10. A high strength, stable motor structure as defined in claim 1,
the front end cover and the rear end cover are made of zinc alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921704055.5U CN210490594U (en) | 2019-10-12 | 2019-10-12 | High-strength stable motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921704055.5U CN210490594U (en) | 2019-10-12 | 2019-10-12 | High-strength stable motor structure |
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| Publication Number | Publication Date |
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| CN210490594U true CN210490594U (en) | 2020-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921704055.5U Active CN210490594U (en) | 2019-10-12 | 2019-10-12 | High-strength stable motor structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421817A (en) * | 2020-11-10 | 2021-02-26 | 贵州华亿绿色纺织产业科技有限公司 | Permanent magnet synchronous motor for circulating fan |
| CN116207901A (en) * | 2023-04-28 | 2023-06-02 | 常州蛰猛机械制造有限公司 | Air-cooled permanent magnet motor, working method and speed reducer unit |
-
2019
- 2019-10-12 CN CN201921704055.5U patent/CN210490594U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421817A (en) * | 2020-11-10 | 2021-02-26 | 贵州华亿绿色纺织产业科技有限公司 | Permanent magnet synchronous motor for circulating fan |
| CN116207901A (en) * | 2023-04-28 | 2023-06-02 | 常州蛰猛机械制造有限公司 | Air-cooled permanent magnet motor, working method and speed reducer unit |
| CN116207901B (en) * | 2023-04-28 | 2023-07-04 | 常州蛰猛机械制造有限公司 | Air-cooled permanent magnet motor, working method and speed reducer unit |
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