CN113937937B - Motor capable of preventing rotor permanent magnet from falling off - Google Patents

Motor capable of preventing rotor permanent magnet from falling off Download PDF

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Publication number
CN113937937B
CN113937937B CN202111057486.9A CN202111057486A CN113937937B CN 113937937 B CN113937937 B CN 113937937B CN 202111057486 A CN202111057486 A CN 202111057486A CN 113937937 B CN113937937 B CN 113937937B
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China
Prior art keywords
permanent magnet
fixed
output shaft
motor
blocks
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Application number
CN202111057486.9A
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Chinese (zh)
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CN113937937A (en
Inventor
张江
解淑芹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Yineng Electric Motor Co.,Ltd.
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Rongcheng Yineng Motors Co ltd
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Priority to CN202111057486.9A priority Critical patent/CN113937937B/en
Publication of CN113937937A publication Critical patent/CN113937937A/en
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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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2793—Rotors axially facing stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
    • H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
    • 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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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)

Abstract

The invention discloses a motor for preventing a rotor permanent magnet from falling off, which comprises a motor body and an output shaft, wherein one end of the motor body is provided with a fixed shell, a fixed ring sleeved on the output shaft is arranged inside the fixed shell, permanent magnet blocks are equidistantly distributed outside the fixed ring, and a fixed disc is arranged outside the output shaft and positioned on one side of the fixed ring. According to the invention, the electric telescopic rod is controlled to be shortened, the electric telescopic rod pulls two limiting blocks to slide towards the center of the fixed disc in the limiting groove through the connecting rod, the two limiting blocks move to drive the V-shaped rods to deflect angularly, so that the linkage piece is driven to rotate, the other two limiting blocks are driven to synchronously slide by the rotation of the linkage piece through the other two V-shaped rods, the arc-shaped clamping blocks are driven by the sliding of the limiting blocks to clamp the fixed ring, so that the permanent magnet blocks are fixed in the fixed shell, and the permanent magnet blocks are prevented from being separated after long-term use.

Description

Motor capable of preventing rotor permanent magnet from falling off
Technical Field
The invention relates to the technical field of motors, in particular to a motor capable of preventing a rotor permanent magnet from falling off.
Background
An electric motor is a device that converts electrical energy into mechanical energy. The electromagnetic power generator utilizes an electrified coil to generate a rotating magnetic field and acts on a rotor to form magnetoelectric power rotating torque. The motors are classified into dc motors and ac motors according to the power sources used, and most of the motors in the power system are ac motors, which may be synchronous motors or asynchronous motors. The motor mainly comprises a stator and a rotor, and the direction of the forced movement of the electrified conducting wire in the magnetic field is related to the current direction and the magnetic induction line direction. The working principle of the motor is that the magnetic field exerts force on current to rotate the motor.
At present, the motor is widely used in production type enterprises and becomes an indispensable component in enterprise production, but after the existing motor is used for a long time, the internal components can be loosened, once the permanent magnet is loosened, the rotating efficiency of an output shaft of the motor is easily influenced, and the motor can not be used in a serious condition.
Disclosure of Invention
The invention aims to: the motor for preventing the rotor permanent magnet from falling off is provided in order to solve the problem that the motor permanent magnet is loosened.
In order to achieve the purpose, the invention adopts the following technical scheme:
a motor for preventing a rotor permanent magnet from falling off comprises a motor body and an output shaft, wherein one end of the motor body is provided with a fixed shell, a fixed ring sleeved on the output shaft is arranged inside the fixed shell, permanent magnet blocks are equidistantly distributed outside the fixed ring, a fixed disc is arranged outside the output shaft and positioned on one side of the fixed ring, a limiting groove distributed in a circumferential array manner is arranged on the fixed disc, a limiting block is slidably connected inside the limiting groove, an arc-shaped clamping block is arranged on the side wall, close to the fixed ring, of the limiting block, the other side wall of the limiting block is movably connected with a V-shaped rod through a first connecting shaft, the V-shaped rod is connected with a linkage piece through a second connecting shaft, mounting rods are arranged on the side walls of the two limiting blocks which are symmetrically distributed, connecting rods which are vertically distributed with the mounting rods are arranged at the end parts of the two mounting rods, an electric telescopic rod is movably connected between the two connecting rods.
As a further description of the above technical solution:
the linkage piece and the fixed disc are arranged in parallel, and an inner hole for the output shaft to pass through is formed in the center of the linkage piece.
As a further description of the above technical solution:
the linkage piece is of a quadrilateral structure and is in running fit with the output shaft through an inner hole.
As a further description of the above technical solution:
the electric telescopic rods are provided with two electric telescopic rods and are symmetrically distributed around the output shaft.
As a further description of the above technical solution:
the lateral wall of fixed disc is provided with the reference column, the lateral wall of solid fixed ring has the locating hole with reference column looks adaptation.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the electric telescopic rod is controlled to be shortened, the electric telescopic rod pulls two limiting blocks to slide towards the center of the fixed disc in the limiting groove through the connecting rod, the two limiting blocks move to drive the V-shaped rods to deflect angularly, so that the linkage piece is driven to rotate, the other two limiting blocks are driven to slide synchronously by the rotation of the linkage piece through the other two V-shaped rods, the arc-shaped clamping blocks are driven by the sliding of the limiting blocks to clamp the fixed ring, and therefore, the permanent magnet blocks are fixed in the fixed shell, and the permanent magnet blocks are prevented from being separated after long-term use.
2. According to the invention, the fixing ring can be clamped and released by controlling the extension and retraction of the electric telescopic rod, so that the permanent magnet blocks can be conveniently installed and detached, and the maintenance efficiency of the permanent magnet of the motor can be improved.
Drawings
FIG. 1 is a schematic diagram illustrating a main view structure of an electric motor for preventing a permanent magnet of a rotor from falling off according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a side view of the interior of a motor fixing housing for preventing a rotor permanent magnet from falling off according to an embodiment of the present invention;
FIG. 3 is a front sectional view of the interior of the motor fixing shell for preventing the permanent magnet of the rotor from falling off, according to the embodiment of the invention;
FIG. 4 is a partial sectional view of the interior of a motor stator housing for preventing the permanent magnets of the rotor from falling off according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram illustrating a side sectional view of a motor fixing housing for preventing a rotor permanent magnet from falling off according to an embodiment of the present invention;
fig. 6 is an enlarged schematic view of a portion a of fig. 3 of the motor for preventing the rotor permanent magnet from falling off according to an embodiment of the present invention.
Illustration of the drawings:
1. a motor body; 2. an output shaft; 3. fixing the housing; 4. positioning holes; 5. permanent magnet blocks; 6. a fixing ring; 7. fixing the disc; 8. a limiting block; 9. an arc-shaped fixture block; 10. mounting a rod; 11. a first connecting shaft; 12. a V-shaped rod; 13. a second connecting shaft; 14. a linkage piece; 15. a connecting rod; 16. an electric telescopic rod; 17. a limiting groove; 18. and a positioning column.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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. 1-6, the present invention provides a technical solution: a motor for preventing a rotor permanent magnet from falling off comprises a motor body 1 and an output shaft 2, wherein one end of the motor body 1 is provided with a fixed shell 3, a fixed ring 6 sleeved on the output shaft 2 is arranged inside the fixed shell 3, permanent magnet blocks 5 are equidistantly distributed outside the fixed ring 6, the permanent magnet blocks 5 are fixed on the output shaft 2 through the fixed ring 6, one side, located on the fixed ring 6, outside the output shaft 2 is provided with a fixed disc 7, the fixed disc 7 is provided with limit grooves 17 distributed in a circumferential array manner, the limit grooves 17 are provided with four limit grooves, and are equidistantly distributed on the fixed disc 7, a limit block 8 is slidably connected inside the limit grooves 17, an arc-shaped block 9 is arranged on the side wall, close to the fixed ring 6, of the limit block 8, the arc-shaped block 9 can be clamped with the outer wall of the fixed ring 6, the fixed ring 6 is clamped, and the other side wall of the limit block 8 is movably connected with a V-shaped rod 12 through a connecting shaft 11, the V-shaped rod 12 is connected with a linkage piece 14 through a second connecting shaft 13, two ends of the V-shaped rod 12 are respectively in running fit with a first connecting shaft 11 and a second connecting shaft 13, the side walls of the two limiting blocks 8 which are symmetrically distributed are provided with mounting rods 10, the end parts of the two mounting rods 10 are provided with connecting rods 15 which are vertically distributed with the mounting rods, an electric telescopic rod 16 is movably connected between the two connecting rods 15, and the electric telescopic rod 16 stretches and retracts to pull the two limiting blocks 8 to move relatively on the fixed disc 7 through the connecting rods 15 and the mounting rods 10.
Specifically, as shown in fig. 3, the linkage piece 14 is arranged in parallel with the fixed disk 7, and an inner hole for the output shaft 2 to pass through is formed in the center of the linkage piece 14, so that the linkage piece 14 can rotate around the output shaft 2.
Specifically, as shown in fig. 2, the linkage piece 14 is of a quadrilateral structure, and is in running fit with the output shaft 2 through an inner hole, so that four corners of the linkage piece 14 correspond to the limiting blocks 8 one to one, and all the limiting blocks 8 are controlled to slide synchronously.
Specifically, as shown in fig. 2, the electric telescopic rods 16 are provided with two electric telescopic rods and symmetrically distributed about the output shaft 2, and the electric telescopic rods 16 are located on two sides of the output shaft 2, so that mutual interference between the electric telescopic rods 16 and the output shaft 2 during operation can be avoided.
Specifically, as shown in fig. 6, a positioning column 18 is disposed on a side wall of the fixing disc 7, a positioning hole 4 matched with the positioning column 18 is formed in a side wall of the fixing ring 6, and the fixing ring 6 can be preliminarily fixed through the insertion of the positioning column 18 and the positioning hole 4 in the fixing ring 6.
The working principle is as follows: when the permanent magnet fixing device is used, the electric telescopic rod 6 is controlled to be shortened, the electric telescopic rod 6 pulls two limiting blocks 8 to slide towards the center of the fixing disc 7 in the limiting grooves 17 through the connecting rod 15, the two limiting blocks 8 move to drive the V-shaped rods 12 to deflect angularly so as to drive the linkage piece 14 to rotate, the linkage piece 14 rotates to drive the other two limiting blocks 8 to slide synchronously through the other two V-shaped rods 12, the arc-shaped clamping blocks 9 are driven by the sliding of the limiting blocks 8 to clamp the fixing ring 6, so that the permanent magnet blocks 5 are fixed in the fixing shell 3, and the permanent magnet blocks 5 are prevented from being separated after long-term use; the clamping and releasing of the fixing ring 6 can be realized by controlling the stretching of the electric telescopic rod 6, the permanent magnet blocks 5 are convenient to install and detach, and the maintenance efficiency of the permanent magnet of the motor is improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (5)

1. A motor for preventing a rotor permanent magnet from falling off comprises a motor body and an output shaft, and is characterized in that one end of the motor body is provided with a fixed shell, a fixed ring sleeved on the output shaft is arranged inside the fixed shell, permanent magnet blocks are equidistantly distributed outside the fixed ring, a fixed disc is arranged outside the output shaft and positioned on one side of the fixed ring, limit grooves distributed in a circumferential array are arranged on the fixed disc, limit blocks are slidably connected inside the limit grooves, arc-shaped clamping blocks are arranged on the side walls, close to the fixed ring, of the limit blocks, the other side wall of the limit blocks is movably connected with a V-shaped rod through a first connecting shaft, the V-shaped rod is connected with a linkage piece through a second connecting shaft, the side walls of the two limit blocks which are symmetrically distributed are provided with mounting rods, and the end parts of the two mounting rods are provided with connecting rods which are vertically distributed with the mounting rods, an electric telescopic rod is movably connected between the two connecting rods.
2. The motor as claimed in claim 1, wherein the link plate is disposed in parallel with the fixed disk, and the link plate has an inner hole at a center thereof through which the output shaft passes.
3. The motor as claimed in claim 2, wherein the linkage plate has a quadrilateral structure and is rotatably engaged with the output shaft through an inner hole.
4. The motor for preventing the permanent magnet of the rotor from falling off as claimed in claim 1, wherein the electric telescopic rods are provided with two parts and are symmetrically distributed about the output shaft.
5. The motor for preventing the permanent magnet of the rotor from falling off as claimed in claim 1, wherein the side wall of the fixing disk is provided with a positioning column, and the side wall of the fixing ring is provided with a positioning hole matched with the positioning column.
CN202111057486.9A 2021-09-09 2021-09-09 Motor capable of preventing rotor permanent magnet from falling off Active CN113937937B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111057486.9A CN113937937B (en) 2021-09-09 2021-09-09 Motor capable of preventing rotor permanent magnet from falling off

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111057486.9A CN113937937B (en) 2021-09-09 2021-09-09 Motor capable of preventing rotor permanent magnet from falling off

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CN113937937A CN113937937A (en) 2022-01-14
CN113937937B true CN113937937B (en) 2022-07-05

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1300922A1 (en) * 2001-10-02 2003-04-09 Robert Bosch Gmbh Direct current machine and fixing method for the magnets at the stator housing of the dc machine
CN210111720U (en) * 2019-06-10 2020-02-21 重庆市璧山区中山机械有限责任公司 Rotor for automobile air conditioning system for preventing permanent magnet from falling off
CN210608729U (en) * 2019-11-20 2020-05-22 安徽恒磁磁电有限公司 Novel fixing device for motor magnetic shoe
CN212114933U (en) * 2020-05-22 2020-12-08 上海电机系统节能工程技术研究中心有限公司 Motor rotor monomer, motor rotor and motor
CN112104132A (en) * 2020-09-24 2020-12-18 马鞍山斯博尔机械技术服务有限公司 Miniature motor shell structure capable of fixing permanent magnet material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1300922A1 (en) * 2001-10-02 2003-04-09 Robert Bosch Gmbh Direct current machine and fixing method for the magnets at the stator housing of the dc machine
CN210111720U (en) * 2019-06-10 2020-02-21 重庆市璧山区中山机械有限责任公司 Rotor for automobile air conditioning system for preventing permanent magnet from falling off
CN210608729U (en) * 2019-11-20 2020-05-22 安徽恒磁磁电有限公司 Novel fixing device for motor magnetic shoe
CN212114933U (en) * 2020-05-22 2020-12-08 上海电机系统节能工程技术研究中心有限公司 Motor rotor monomer, motor rotor and motor
CN112104132A (en) * 2020-09-24 2020-12-18 马鞍山斯博尔机械技术服务有限公司 Miniature motor shell structure capable of fixing permanent magnet material

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Optimal Design and Analysis on Bearingless Permanent Magnet-type Synchronous Motors Using Finite Element Method;Chang Jiang等;《2006 CES/IEEE 5th International Power Electronics and Motion Control Conference》;20090210;第2卷;第1-5页 *
高速永磁电动机转子磁钢表贴固定方式的分析与研究;林凤卿;《新技术新工艺》;20180425(第04期);第64-66页 *

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Address after: Ma Cao Kuang village, Tengjia Town, Rongcheng City, Weihai City, Shandong Province

Patentee after: Shandong Yineng Electric Motor Co.,Ltd.

Country or region after: China

Address before: 264 300 Ma Cao Kuang Village, Tengjia Town, Rongcheng City, Weihai City, Shandong Province

Patentee before: RONGCHENG YINENG MOTORS Co.,Ltd.

Country or region before: China