CN216252405U - Integrated rear electric spindle for permanent magnet motor - Google Patents
Integrated rear electric spindle for permanent magnet motor Download PDFInfo
- Publication number
- CN216252405U CN216252405U CN202122789106.2U CN202122789106U CN216252405U CN 216252405 U CN216252405 U CN 216252405U CN 202122789106 U CN202122789106 U CN 202122789106U CN 216252405 U CN216252405 U CN 216252405U
- Authority
- CN
- China
- Prior art keywords
- shaft core
- locking
- core body
- roller bearing
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides an integrated rear electric spindle for a permanent magnet motor, which comprises a shaft sleeve and a connecting shell arranged on the shaft sleeve; a shaft core assembly is rotatably mounted in the shaft sleeve, the front end of the shaft core assembly penetrates through the shaft sleeve to be connected with a front end cover, and the rear end of the shaft core assembly penetrates through the connecting shell to be provided with a connecting disc through a first spline; the shaft core assembly is also provided with a first locking nut for locking the connecting disc; a stator structure is arranged in the connecting shell, and a rotor structure which rotates relative to the stator structure is arranged on the shaft core assembly through a second spline; the connecting disc is fixedly provided with a magnetic ring, the connecting shell is provided with a rear end cover and a reading head arranged on the rear end cover, and the reading head is used for detecting the rotating speed of the magnetic ring; the situation that the existing spindle is complex in structure and cannot detect the rotating speed of the spindle is improved.
Description
Technical Field
The utility model relates to the technical field of rotating shafts, in particular to an integrated rear electric spindle for a permanent magnet motor.
Background
A main shaft forming power transmission in the permanent magnet motor is connected with a power input end and a power output end and drives a rotor to synchronously rotate in the rotation process of the main shaft so as to form a process of relative rotation with a stator structure; the existing spindle is complex in structure and cannot detect the rotating speed of the spindle.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides an integrated rear electric spindle for a permanent magnet motor, which solves the problems that the existing spindle is complex in structure and the rotating speed of the existing spindle cannot be detected.
In order to achieve the purpose, the utility model adopts the following technical scheme:
an integrated rear electric spindle for a permanent magnet motor comprises a shaft sleeve and a connecting shell arranged on the shaft sleeve;
a shaft core assembly is rotatably mounted in the shaft sleeve, the front end of the shaft core assembly penetrates through the shaft sleeve to be connected with a front end cover, and the rear end of the shaft core assembly penetrates through the connecting shell to be provided with a connecting disc through a first spline;
the shaft core assembly is also provided with a first locking nut for locking the connecting disc;
a stator structure is arranged in the connecting shell, and a rotor structure which rotates relative to the stator structure is arranged on the shaft core assembly through a second spline;
the magnetic ring is fixedly installed on the connecting disc, a rear end cover and a reading head installed on the rear end cover are arranged on the connecting shell, and the reading head is used for detecting the rotating speed of the magnetic ring.
Preferably, the shaft sleeve is provided with an expansion sleeve for fixedly connecting the front end cover.
Preferably, the axle core assembly comprises an axle core body, and a first roller bearing and a second roller bearing which are arranged on the axle core body at intervals;
the shaft core body is provided with a screwed part in threaded fit with the front end cover;
the shaft core body is provided with a first locking assembly for locking the first roller bearing;
and a second locking assembly used for locking the second roller bearing is arranged on the shaft core body.
Preferably, the shaft core body is sleeved with a thrust bearing which is positioned on one side of the first roller bearing and is arranged in the shaft sleeve;
an inner spacer ring and an outer spacer ring sleeved on the shaft core body are arranged between the thrust bearing and the first roller bearing.
Preferably, the first locking assembly comprises an adjusting ring sleeved on the shaft core body and abutted against the threaded part, and the adjusting ring is used for adjusting the position of the first roller bearing;
and the shaft core body is provided with a positioning space ring for compressing the thrust bearing and the first roller bearing and a second locking nut for locking the positioning space ring.
Preferably, the second locking assembly comprises a rear pressing ring which is sleeved on the shaft core body and used for positioning the second locking assembly;
the shaft core body is sleeved with a rear gland used for positioning the second roller bearing, and the rear gland is fixedly arranged on the shaft sleeve;
the shaft core body is sleeved with a rear sealing ring used for pressing the second roller bearing and a third locking nut used for locking the rear sealing ring.
Preferably, a brake disc is fixedly mounted on the connecting disc.
Compared with the prior art, the utility model has the following beneficial effects:
the shaft core assembly can drive the rotor structure to rotate relative to the stator structure after power transmission, so that the rotor structure can rotate more flexibly, and after the connecting disc and the magnetic ring are installed on the shaft core assembly, the magnetic ring synchronously rotates in the rotating process, so that the rotating speed of the magnetic ring is detected through the reading head, and the rotating speed of the shaft core assembly can be detected;
and overall structure is simple can, is convenient for form integrative package assembly and uses.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic illustration of an explosive structure according to the present invention;
in the figure, the position of the upper end of the main shaft,
the shaft sleeve comprises a shaft sleeve 1, a connecting shell 2, a shaft core assembly 3, a shaft core body 31, a first roller bearing 32, a second roller bearing 33, a threaded part 34, a first locking assembly 35, an adjusting ring 351, a positioning space ring 352, a second locking nut 353, a second locking assembly 36, a rear pressing ring 361, a rear pressing cover 362, a rear sealing ring 363, a third locking nut 364, a thrust bearing 37, an outer space ring 38, a front end cover 4, a first spline 5, a connecting disc 6, a first locking nut 7, a stator structure 8, a rotor structure 9, a magnetic ring 10, a reading head 11, a second spline 12, an expansion sleeve 13, a brake disc 14 and a rear end cover 15.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
As shown in fig. 1 and 2, an embodiment of the present invention provides an integrated rear electric spindle for a permanent magnet motor, including a shaft sleeve 1 and a connection housing 2 mounted on the shaft sleeve 1; a shaft core assembly 3 is rotatably mounted in the shaft sleeve 1, the front end of the shaft core assembly 3 penetrates through the shaft sleeve 1 and is connected with a front end cover 4, and the rear end of the shaft core assembly 3 penetrates through the connecting shell 2 and is then provided with a connecting disc 6 through a first spline 5; the shaft core assembly 3 is also provided with a first locking nut 7 for locking the connecting disc 6, after the whole shaft core assembly 3 is locked on the shaft sleeve 1 through the first locking nut 7, the shaft core assembly 3 can rotate relative to the shaft sleeve 1, and power is transmitted through the front end cover 4 and the connecting disc 6; meanwhile, a stator structure 8 is arranged in the connecting shell 2, and a rotor structure 9 which rotates relative to the stator structure 8 is arranged on the shaft core assembly 3 through a second spline 12; after the shaft core assembly 3 rotates, the rotor structure 9 can be driven to rotate relative to the stator structure 8, so that the shaft core assembly 3 can further rotate more stably and flexibly; meanwhile, a magnetic ring 10 is fixedly installed on the connecting disc 6, a rear end cover 15 and a reading head 11 installed on the rear end cover 15 are arranged on the connecting shell 2, the reading head 11 is used for detecting the rotating speed of the magnetic ring 10, and the reading head 11 adopts a probe with magnetic induction in the prior art; after the magnetic ring 10 rotates along with the shaft core assembly 3, the rotating speed of the magnetic ring 10 is detected through the reading head 11, and then the current rotating speed of the shaft core can be obtained, so that corresponding adjustment can be conveniently carried out according to the rotating speed condition of actual requirements; specifically, the brake disc 14 is fixedly mounted on the connecting disc 6, and when the rotating speed of the shaft core assembly 3 needs to be adjusted, the rotating speed can be controlled and reduced after the brake disc 14 is matched with corresponding mounting equipment.
Specifically, an expansion sleeve 13 for fixedly connecting the front end cover 4 is arranged on the shaft sleeve 1, and after the front end cover 4 is fixedly connected through the expansion sleeve 13, the shaft core assembly 3 can have a reliable positioning structure after being locked, and can keep flexible rotation in a positioning state.
Specifically, the shaft core assembly 3 includes a shaft core body 31, and a first roller bearing 32 and a second roller bearing 33 which are mounted on the shaft core body 31 at intervals; after the whole shaft core body 31 is mounted on the shaft sleeve 1 through the first roller bearing 32 and the second roller bearing 33, a rotary support is formed and the flexible rotation of the shaft core body 31 is ensured; the shaft core body 31 is provided with a thread connection part 34 in thread fit with the front end cover 4, and the shaft core body 31 is fixedly connected with the front end cover 4 through the thread connection part 34; in order to ensure that the relative positions of the first roller bearing 32 and the second roller bearing 33 do not float during operation, a first locking component 35 for locking the first roller bearing 32 is arranged on the shaft core body 31; and a second locking assembly 36 for locking the second roller bearing 33 is provided on the spindle body 31.
Meanwhile, a thrust bearing 37 which is positioned at one side of the first roller bearing 32 and is arranged in the shaft sleeve 1 is sleeved on the shaft core body 31; an inner spacer and an outer spacer 38 sleeved on the shaft core body 31 are arranged between the thrust bearing 37 and the first roller bearing 32; the thrust bearing 37 can ensure that the shaft core body 31 can stably rotate under the condition of receiving axial acting force.
The first locking assembly 35 includes an adjusting ring 351 sleeved on the shaft core body 31 and abutting against the threaded portion 34, wherein the adjusting ring 351 is used for adjusting the position of the first roller bearing 32; meanwhile, a positioning spacer 352 for pressing the thrust bearing 37 and the first roller bearing 32 and a second locking nut 353 for locking the positioning spacer 352 are arranged on the shaft core body 31; the adjustment ring 351 can be allowed to float at a certain position by the engagement between the front end cover 4 and the screw portion 34, so that the position of the first roller bearing 32 can be adjusted, and after the adjustment ring is fixed in position, the second lock nut 353 pushes the positioning spacer 352 to move, so that the thrust bearing 37 and the first roller bearing 32 are locked.
The second locking assembly 36 includes a rear pressing ring 361 sleeved on the shaft core body 31 and used for positioning the second locking assembly; the shaft core body 31 is sleeved with a rear gland 362 for positioning the second roller bearing 33, and the rear gland 362 is fixedly installed on the shaft sleeve 1; the shaft core body 31 is sleeved with a rear sealing ring 363 for pressing the second roller bearing 33 and a third locking nut 364 for locking the rear sealing ring 363; after the rear gland 362 is fixed to the sleeve 1, the outer ring of the second roller bearing 33 can be positioned, and the inner ring of the second roller bearing 33 can be locked by the third lock nut 364.
After the inner rings of the first bearing, the second bearing and the thrust bearing 37 are locked and fixed with the shaft core body 31, the shaft core body 31 can be ensured to be more stable in the rotating process, and the swinging condition of the shaft core body 31 can be reduced.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and 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.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, and are only used for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (7)
1. The utility model provides a rearmounted electricity main shaft of integral type for permanent-magnet machine which characterized in that: comprises a shaft sleeve (1) and a connecting shell (2) arranged on the shaft sleeve (1);
a shaft core assembly (3) is rotatably mounted in the shaft sleeve (1), the front end of the shaft core assembly (3) penetrates through the shaft sleeve (1) to be connected with a front end cover (4), and the rear end of the shaft core assembly (3) penetrates through the connecting shell (2) and is then provided with a connecting disc (6) through a first spline (5);
the shaft core assembly (3) is also provided with a first locking nut (7) for locking the connecting disc (6);
a stator structure (8) is installed in the connecting shell (2), and a rotor structure (9) which rotates relative to the stator structure (8) is installed on the shaft core assembly (3) through a second spline (12);
the magnetic ring type magnetic bearing is characterized in that a magnetic ring (10) is fixedly mounted on the connecting disc (6), a rear end cover (15) and a reading head (11) mounted on the rear end cover (15) are arranged on the connecting shell (2), and the reading head (11) is used for detecting the rotating speed of the magnetic ring (10).
2. The integrated rear electric spindle for the permanent magnet motor according to claim 1, wherein: and an expansion sleeve (13) which is used for fixedly connecting the front end cover (4) is arranged on the shaft sleeve (1).
3. An integral rear electric spindle for a permanent magnet electric machine according to claim 2, characterized in that: the shaft core assembly (3) comprises a shaft core body (31), and a first roller bearing (32) and a second roller bearing (33) which are arranged on the shaft core body (31) at intervals;
the shaft core body (31) is provided with a screwed part (34) which is in threaded fit with the front end cover (4);
the shaft core body (31) is provided with a first locking assembly (35) for locking the first roller bearing (32);
and a second locking assembly (36) used for locking the second roller bearing (33) is arranged on the shaft core body (31).
4. An integral rear electric spindle for a permanent magnet motor according to claim 3, characterized in that: the shaft core body (31) is sleeved with a thrust bearing (37) which is positioned on one side of the first roller bearing (32) and is arranged in the shaft sleeve (1);
an inner spacer ring and an outer spacer ring (38) which are sleeved on the shaft core body (31) are arranged between the thrust bearing (37) and the first roller bearing (32).
5. An integral rear electric spindle for a permanent magnet motor according to claim 4, characterized in that: the first locking assembly (35) comprises an adjusting ring (351) sleeved on the shaft core body (31) and abutted against the threaded part (34), and the adjusting ring (351) is used for adjusting the position of the first roller bearing (32);
the shaft core body (31) is provided with a positioning space ring (352) used for pressing the thrust bearing (37) and the first roller bearing (32) and a second locking nut (353) used for locking the positioning space ring (352).
6. An integral rear electric spindle for a permanent magnet electric machine according to claim 5, characterized in that: the second locking component (36) comprises a rear pressing ring (361) which is sleeved on the shaft core body (31) and used for positioning the second locking component;
the shaft core body (31) is sleeved with a rear gland (362) used for positioning the second roller bearing (33), and the rear gland (362) is fixedly installed on the shaft sleeve (1);
the shaft core body (31) is sleeved with a rear sealing ring (363) used for pressing the second roller bearing (33) and a third locking nut (364) used for locking the rear sealing ring (363).
7. An integrated rear electric spindle for a permanent magnet machine according to any of claims 1-6, characterized in that: and a brake disc (14) is fixedly arranged on the connecting disc (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122789106.2U CN216252405U (en) | 2021-11-15 | 2021-11-15 | Integrated rear electric spindle for permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122789106.2U CN216252405U (en) | 2021-11-15 | 2021-11-15 | Integrated rear electric spindle for permanent magnet motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216252405U true CN216252405U (en) | 2022-04-08 |
Family
ID=80939900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122789106.2U Active CN216252405U (en) | 2021-11-15 | 2021-11-15 | Integrated rear electric spindle for permanent magnet motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216252405U (en) |
-
2021
- 2021-11-15 CN CN202122789106.2U patent/CN216252405U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112737255A (en) | Disc type double-rotor counter-rotating motor and aircraft | |
| CN216252405U (en) | Integrated rear electric spindle for permanent magnet motor | |
| CN207926379U (en) | Permanent magnet synchronous motor | |
| CN108462314A (en) | A kind of air blower rotating device that rimless combination type permanent-magnet linear synchronous motor directly drives | |
| CN109104047A (en) | A kind of disc type tachometer generator | |
| CN108631517A (en) | A kind of permanent magnet synchronous motor | |
| CN113847272A (en) | Novel magnetic suspension air-blower | |
| CN210404933U (en) | Outer rotor permanent magnet synchronous motor | |
| CN220440537U (en) | Torque transmission device for torque motor | |
| CN215072029U (en) | Motor for detection rotary table | |
| CN208469919U (en) | A kind of long spring dtc signal acquisition device of bilayer | |
| CN214959153U (en) | High-speed motor with rotor fault detection device | |
| CN218733655U (en) | Motor drive shaft with location structure | |
| CN210183201U (en) | Brushless motor | |
| CN213185700U (en) | Stepping motor convenient to maintain | |
| CN215990460U (en) | Bearingless rotating motor | |
| CN218888238U (en) | Axial magnetic field motor | |
| CN216751415U (en) | Single-side floating eliminating structure of rotating shaft | |
| CN217427840U (en) | High-power-density three-phase motor based on bearing seal | |
| CN217789580U (en) | Stepping motor combination device | |
| CN218498907U (en) | External rotor magnetic gear motor | |
| CN213456491U (en) | Auxiliary device for detecting strength of motorcycle helmet | |
| CN217036890U (en) | Shaft base structure, motor and body-building device | |
| CN211508872U (en) | Permanent magnet brushless DC motor with positioning and braking functions | |
| CN113541405B (en) | Encoder assembly and motor with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: One piece rear mounted motorized spindle for permanent magnet motor Effective date of registration: 20221017 Granted publication date: 20220408 Pledgee: Bank of China Co.,Ltd. Dongguan Branch Pledgor: DONGGUAN PINZHANG ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. Registration number: Y2022980018452 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |