CN114227533A - Motor for grinding machine - Google Patents
Motor for grinding machine Download PDFInfo
- Publication number
- CN114227533A CN114227533A CN202111351275.6A CN202111351275A CN114227533A CN 114227533 A CN114227533 A CN 114227533A CN 202111351275 A CN202111351275 A CN 202111351275A CN 114227533 A CN114227533 A CN 114227533A
- Authority
- CN
- China
- Prior art keywords
- motor
- stator
- rotor
- grinding machine
- magnetic steel
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
Abstract
The invention relates to the technical field of motors, and discloses a motor for a grinding machine, which comprises: a fixed shaft; a stator coaxially mounted on the stationary shaft; the rotor magnetic steel is positioned on the outer peripheral side of the stator; the rotor shell is arranged on the fixed shaft and is positioned on the outer periphery side of the rotor magnetic steel, and the outer periphery side of the rotor shell is provided with a grinding disc installation groove for installing a grinding disc; when the rotor magnetic steel rotates, the grinding disc is driven to rotate. According to the invention, the millstone is installed through the millstone installation groove arranged on the rotor shell, so that the millstone can be directly driven to rotate when the rotor magnetic steel rotates, the motor and the millstone structure of the grinding machine are integrated, the power structure of the millstone is compactly arranged, and the occupied space of the motor is reduced; and, through rotor magnet steel direct drive mill rotation, need not hold-in range transmission, promote work efficiency.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor for a grinding machine.
Background
The grinding machine is a machine tool for grinding the surface of a workpiece by using a grinding tool, and the main power source of the grinding machine is a motor. At present, a grinding machine mainly utilizes a three-phase asynchronous motor as main power, the power is transmitted to a grinding disc through a synchronous belt, and the grinding disc is driven to rotate so as to process a workpiece. However, the energy consumption of the three-phase asynchronous motor is large, and the power needs to be transmitted to the grinding machine through the synchronous belt, so that the whole structure occupies a large space, and the working efficiency is low.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a motor for a grinding machine, which can solve the problems of large space occupation and low work efficiency of the conventional power mechanism of the grinding machine.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a motor for a grinding machine, which comprises:
a fixed shaft;
a stator coaxially mounted on the stationary shaft;
the rotor magnetic steel is positioned on the outer peripheral side of the stator;
the rotor shell is arranged on the fixed shaft and is positioned on the outer periphery side of the rotor magnetic steel, and the outer periphery side of the rotor shell is provided with a grinding disc installation groove for installing a grinding disc;
when the rotor magnetic steel rotates, the grinding disc is driven to rotate.
Preferably, the motor for the grinding machine further comprises a stator fixing device, wherein the stator fixing device is installed on the fixing shaft and located at the end of the stator so as to axially fix the stator.
Preferably, the fixed shaft is provided with a stepped shaft, one end of the stator abuts against the stepped shaft, and the stator fixing device is arranged at the other end of the stator.
Preferably, the stator fixing device comprises a fixing sleeve, and the fixing sleeve is sleeved on the fixing shaft.
Preferably, a wire outlet channel is arranged on the stepped shaft to lead out three phase wires of the stator.
Preferably, the outer side of the rotor magnetic steel is wrapped with an epoxy resin gel layer.
Preferably, the motor for the grinding machine further comprises a first limiting device, and the first limiting device is mounted on the fixed shaft to axially limit the rotor shell.
Preferably, the one end opening of rotor housing, rotor housing's the other end is provided with first bearing mounting groove, first stop device includes end cover and two bearings, one side of end cover with rotor housing's opening is connected, the opposite side of end cover is provided with the second bearing mounting groove, and a bearing is installed on the fixed axle, and be located in the first bearing mounting groove, another bearing is installed on the fixed axle, and be located in the second bearing mounting groove.
Preferably, the motor for the grinding machine further comprises a second limiting device, and the second limiting device is installed on the rotor shell to axially limit the grinding disc.
Preferably, the second limiting device comprises an end plate, the end plate is located on the side, which is not connected with the rotor shell, of the end cover, and the grinding disc mounting groove is formed on the side, which is not opened, of the end plate and the rotor shell.
Compared with the prior art, the motor for the grinding machine has the advantages that:
the grinding disc is installed on the motor for the grinding machine through the grinding disc installation groove formed in the rotor shell, so that when the rotor magnetic steel rotates, the grinding disc can be directly driven to rotate, the motor and the grinding disc structure of the grinding machine are integrated, the power structure of the grinding disc is compactly arranged, and the occupied space of the motor is reduced; and, through rotor magnet steel direct drive mill rotation, need not hold-in range transmission, promote work efficiency.
Drawings
Fig. 1 is a schematic cross-sectional view of a motor for a grinding machine according to an embodiment of the present invention;
in the figure, 1, a shaft is fixed; 11. a stepped shaft; 12. a wire outlet channel; 2. a stator; 21. a stator three-phase line; 3. rotor magnetic steel; 4. a rotor housing; 5. fixing the sleeve; 61. an end cap; 62. a bearing; 7. an end plate; 8. a grinding disc.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The motor for the grinding machine is used for providing power for the grinding disc 8 of the grinding machine and driving the grinding disc 8 to rotate so as to grind a workpiece. As shown in fig. 1, a motor for a grinding machine according to a preferred embodiment of the present invention includes a fixed shaft 1, a stator 2, rotor magnetic steel 3 and a rotor housing 4, wherein the stator 2 is coaxially mounted on the fixed shaft 1; the rotor magnetic steel 3 is positioned on the outer peripheral side of the stator 2; the rotor housing 4 is mounted on the fixed shaft 1 and located on the outer periphery side of the rotor magnetic steel 3, and the outer periphery side of the rotor housing 4 is provided with a grinding disc mounting groove for mounting a grinding disc 8. When the motor for the grinding machine is installed, the fixed shaft 1 is fixedly connected with a grinding wheel frame of the grinding machine, the grinding wheel frame is connected with a workbench of the grinding machine, a workpiece to be ground is located on the workbench, a grinding disc 8 of the grinding machine is installed in a grinding disc installation groove in an interference fit installation mode, and the grinding disc 8 is driven to rotate through rotation of the rotor magnetic steel 3, so that the workpiece is ground.
According to the invention, the millstone 8 is arranged in the millstone mounting groove arranged on the rotor shell 4, so that the millstone 8 can be directly driven to rotate when the rotor magnetic steel 3 rotates, the motor and the millstone structure of the grinding machine are integrated, the power structure of the millstone 8 is compactly arranged, the occupied space of the motor is reduced, and the integral space arrangement of the grinding machine is facilitated; and, through rotor magnet steel 3 direct drive mill 8 rotates, need not synchronous belt drive, further reduces occupation space to promote work efficiency.
Preferably, the outer side of the rotor magnetic steel 3 is wrapped by an epoxy resin gel layer, the magnetic steel is protected by the epoxy resin gel layer, and the magnetic steel is fixed.
Preferably, the motor for the grinding machine further comprises a stator fixing device, wherein the stator fixing device is installed on the fixing shaft 1 and is located at the end of the stator 2 so as to axially fix the stator 2. Wherein, the tip of stator 2 indicates the central axis looks vertically terminal surface with fixed axle 1, stator fixing device can be located the one end or the both ends of stator 2, optionally, be provided with stepped shaft 11 on the fixed axle 1, the diameter of axle of stepped shaft 11 is greater than the diameter of axle of fixed axle 1, the one end of stator 2 is contradicted on stepped shaft 11, stator fixing device sets up the other end of stator 2 carries out axial fixity respectively through stator fixing device and stepped shaft 11 to the both ends of stator 2. Further, an outlet channel 12 is arranged on the stepped shaft 11 to lead out the three stator phase lines 21, so that the three stator phase lines 21 are connected to a motor controller.
Further, stator fixing device includes fixed sleeve 5, fixed sleeve 5 cover is established on fixed axle 1, just fixed sleeve 5's one end is contradicted at the tip of stator 2 to make 2 axial fixings of stator. Further, the outer diameter of the fixing sleeve 5 is smaller than the diameter of the stator coil winding of the stator 2 to satisfy the safe creepage distance of the stator coil winding.
Preferably, the stator fixing means is arranged inside the rotor housing 4, so that the structure of the motor is more compact.
Preferably, the motor for the grinding machine further comprises a first limiting device, and the first limiting device is installed on the fixed shaft 1 to axially limit the rotor housing 4. In this embodiment, one end of the rotor housing 4 is open, the other end of the rotor housing 4 is provided with a first bearing mounting groove, the first limiting device includes an end cover 61 and two bearings 62, one side of the end cover 61 is connected with the opening of the rotor housing 4, for example, the end cover 61 covers the opening of the rotor housing 4 and is connected with the wall surface of the rotor housing 4 through a bolt, the other side of the end cover 61 is provided with a second bearing mounting groove, one bearing 62 is installed on the fixed shaft 1 and is located in the first bearing mounting groove, and the other bearing 62 is installed on the fixed shaft 1 and is located in the second bearing mounting groove. One end of the rotor housing 4 is axially restrained by the end cap 61 and a bearing 62, and the other end of the rotor housing 4 is axially restrained by a bearing 62.
It should be noted that the first bearing mounting groove and the second bearing mounting groove are both recessed toward the stator 2, so that the bearing 62 is completely located in the grooves, resulting in a compact structure.
It should be noted that, in other embodiments, the rotor housing 4 may be integrally formed with the end cover 61, bearing installation grooves are provided at both ends of the rotor housing 4, one bearing 62 is installed in each bearing 62 installation groove, and the two ends of the rotor housing 4 are axially limited by the two bearings 62 respectively.
It should be noted that, in other embodiments, the rotor housing 4 may also be a housing with both closed ends, both ends of the rotor housing 4 are provided with bearing installation grooves, the first limiting device includes two bearings 62, one bearing 62 is installed in each bearing installation groove, and the two ends of the rotor housing 4 are axially limited by the two bearings 62 respectively.
Preferably, the motor for the grinding machine further comprises a second limiting device, and the second limiting device is installed on the rotor shell 4 to axially limit the grinding disc 8, so that axial displacement is avoided when the grinding disc 8 rotates.
Further, the second limiting device comprises an end plate 7, the end plate 7 is located on the side, not connected with the rotor housing 4, of the end cover 61, and the grinding disc mounting groove is formed on the side, not opened, of the end plate 7 and the rotor housing 4.
Alternatively, the rotor housing 4 may be a cylindrical structure with an open end, the bottom of the cylindrical structure has a through hole for the fixed shaft 1 to pass through, the bottom of the cylindrical structure has a first bearing installation groove recessed toward the cylindrical wall, and the diameter of the bottom of the cylindrical structure is larger than that of the cylindrical structure, and the end plate 7 protrudes from the cylindrical wall of the rotor housing 4, so that the end plate 7, the outer wall surface of the cylindrical structure and the bottom of the cylindrical structure form a U-shaped grinding disc installation groove. Preferably, the end plate 7 is bolted to the end cover 61 for easy removal.
Optionally, the end plate 7 is circular, and an outer edge of the circular end plate 7 extends along the axial direction to form an annular wall protruding out of the surface of the end plate 7, wherein the surface of the end plate 7 is connected with the end cover 61 through a bolt, the annular wall of the end plate 7 abuts against the grinding disc 8, and the annular wall, the outer wall surface of the rotor housing 4 and the bottom of the rotor housing 4 form a U-shaped grinding disc installation groove.
Optionally, the end cap 61 includes a wall plate and a bottom plate, the diameter of the bottom plate is greater than that of the wall plate, the wall plate is perpendicular to the bottom plate, the axial inner wall surface of the circular ring-shaped end plate 7 abuts against the outer wall surface of the wall plate, and the radial plate surface of the circular ring-shaped end plate 7 is connected to the bottom plate through a bolt. Furthermore, the outer wall surface of the bottom plate is in a step shape, and the shell wall of the rotor shell 4 is clamped in the step shape, so that the outer wall surface of the bottom plate is flush with the outer wall of the rotor shell 4, and the bottom plate is conveniently connected with the shell wall of the rotor shell 4 through bolts.
The working process of the invention is as follows:
after the motor is electrified, the stator 2 in the motor is fixed to form a rotating magnetic field, so that the rotor magnetic steel 3 positioned on the periphery side of the stator 2 rotates, and the grinding disc 8 is driven to rotate in the rotating process of the rotor magnetic steel 3, so that a workpiece is ground.
To sum up, the embodiment of the invention provides a motor for a grinding machine, which is characterized in that a grinding disc 8 is installed through a grinding disc installation groove arranged on a rotor shell 4, so that when a rotor magnetic steel 3 rotates, the grinding disc 8 can be directly driven to rotate, the motor and a grinding disc structure of the grinding machine are integrated, the power structure of the grinding disc 8 is compactly arranged, the installation of redundant spare parts can be omitted, the occupied space of the motor is reduced, and the whole space arrangement of the grinding machine is facilitated; through 3 direct drive millstones 8 rotations of rotor magnet steel, need not synchronous belt drive, further reduce occupation space to promote work efficiency. In addition, the permanent magnet synchronous motor is adopted, so that the whole energy conservation of the grinding machine is facilitated, the use efficiency of the motor is improved, and the power transmission loss is reduced.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A motor for a grinding machine, comprising:
a fixed shaft;
a stator coaxially mounted on the stationary shaft;
the rotor magnetic steel is positioned on the outer peripheral side of the stator;
the rotor shell is arranged on the fixed shaft and is positioned on the outer periphery side of the rotor magnetic steel, and the outer periphery side of the rotor shell is provided with a grinding disc installation groove for installing a grinding disc;
when the rotor magnetic steel rotates, the grinding disc is driven to rotate.
2. The motor for a grinding machine as claimed in claim 1, further comprising a stator fixing device mounted on the fixed shaft and located at an end of the stator to axially fix the stator.
3. The motor for the grinding machine as claimed in claim 2, wherein a stepped shaft is provided on the fixed shaft, one end of the stator abuts against the stepped shaft, and the stator fixing device is provided at the other end of the stator.
4. The machine as claimed in claim 3, wherein said stator fixing means includes a fixing sleeve, said fixing sleeve being fitted over said fixing shaft.
5. The motor for the grinding machine as claimed in claim 3, wherein a wire outlet channel is provided on the stepped shaft to lead out three phase wires of the stator.
6. The motor for the grinding machine as claimed in claim 1, wherein the outer side of the rotor magnetic steel is wrapped with an epoxy resin gel layer.
7. The motor for a grinding machine of claim 1, further comprising a first limiting device mounted on the fixed shaft to axially limit the rotor housing.
8. The motor for the grinding machine as claimed in claim 7, wherein one end of the rotor housing is open, the other end of the rotor housing is provided with a first bearing mounting groove, the first limiting device comprises an end cap and two bearings, one side of the end cap is connected with the opening of the rotor housing, the other side of the end cap is provided with a second bearing mounting groove, one bearing is mounted on the fixed shaft and located in the first bearing mounting groove, and the other bearing is mounted on the fixed shaft and located in the second bearing mounting groove.
9. The motor for a grinding machine of claim 8, further comprising a second limiting device mounted on the rotor housing to axially limit the grinding disc.
10. The motor for a grinding machine of claim 9, wherein the second limiting device comprises an end plate, the end plate is positioned on the side of the end cover which is not connected with the rotor shell, and the end plate and the side of the rotor shell which is not opened form the grinding disc mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111351275.6A CN114227533A (en) | 2021-11-15 | 2021-11-15 | Motor for grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111351275.6A CN114227533A (en) | 2021-11-15 | 2021-11-15 | Motor for grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114227533A true CN114227533A (en) | 2022-03-25 |
Family
ID=80749482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111351275.6A Pending CN114227533A (en) | 2021-11-15 | 2021-11-15 | Motor for grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114227533A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213768A (en) * | 2022-07-12 | 2022-10-21 | 中国科学院西安光学精密机械研究所 | Wheel type processing tool for optical element surface polishing and surface polishing method |
-
2021
- 2021-11-15 CN CN202111351275.6A patent/CN114227533A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115213768A (en) * | 2022-07-12 | 2022-10-21 | 中国科学院西安光学精密机械研究所 | Wheel type processing tool for optical element surface polishing and surface polishing method |
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