CN220970772U - High-speed dynamic-pressure permanent magnet electric spindle - Google Patents
High-speed dynamic-pressure permanent magnet electric spindle Download PDFInfo
- Publication number
- CN220970772U CN220970772U CN202322809574.0U CN202322809574U CN220970772U CN 220970772 U CN220970772 U CN 220970772U CN 202322809574 U CN202322809574 U CN 202322809574U CN 220970772 U CN220970772 U CN 220970772U
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- end cover
- oil outlet
- hole
- permanent magnet
- shell
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- 230000001360 synchronised effect Effects 0.000 claims abstract description 4
- 230000005389 magnetism Effects 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 24
- 238000001816 cooling Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a high-speed dynamic-pressure permanent-magnet electric spindle which comprises a casing, wherein two ends of the casing are respectively and hermetically connected with a bottom end cover and a head end cover; a spiral shell channel is arranged on the inner wall of the shell body and is communicated with an oil inlet through hole arranged on the bottom end cover, and the oil inlet through hole is connected with an oil inlet pipe; a ring channel communicated with the other end of the spiral shell channel is arranged in the head end cover; the stator is arranged in the shell, the rotor is arranged on the main shaft, the permanent magnet is arranged on the rotor to form a permanent magnet synchronous motor, and the motor wiring is connected with a connection socket positioned on the bottom end cover; the main shafts on two sides of the rotor are provided with shaft rings, the shaft bodies of the main shafts in the bottom end cover and the head end cover are provided with spiral grooves, and one ends of the spiral grooves correspond to the outlets arranged on the ring channels and are communicated when the main shafts rotate to the positions; the other end of the spiral groove is connected with an oil outlet cavity, the oil outlet cavity is connected with an oil outlet through hole, and the oil outlet through hole is connected with an oil outlet pipe. The utility model has the advantages of small rotary abrasion, high precision, large cutting force and long service life.
Description
Technical Field
The utility model relates to a high-speed dynamic-pressure permanent magnet electric spindle, and belongs to the technical field of machine tool equipment parts.
Background
The main shaft of machine tool is one of the key parts of machine tool, and is mainly used for supporting transmission parts, such as gears and pulleys, and transmitting motion and torque, such as main shaft of machine tool (for clamping workpiece) and mandrel. When the existing common main shaft works, the surface of the main shaft of the lathe is often worn due to long-time high-speed rotation of the main shaft of the lathe, the service life and the processing density of the main shaft are affected, and when the main shaft is in a high-speed and high-temperature environment, the main shaft is also deformed and damaged due to thermal expansion.
To solve the above technical problems, we have searched for patent documents obtained by searching, such as patent application number: 201310202632.1 a multifunctional built-in dynamic and static piezoelectric main shaft for a high-efficiency high-speed precision machine tool, which comprises a body shell, a main shaft, a bearing, an oil sealing cover, a motor rotor, a stator and the like, wherein a front bearing is arranged at the right end of the body shell, the front bearing and the main shaft form a static pressure thrust bearing, a static pressure oil cavity is also arranged in the inner surface of the front bearing, and the large diameter part of the inner surface is matched with a pre-tightening piston; the rear bearing is arranged in the rear bearing seat; the motor rotor is arranged between the front bearing and the rear bearing, the outer cylindrical surface of the motor stator is tightly matched with the water jacket, the water jacket is matched with a hole in the middle of the body shell, the water jacket is connected with the body shell, the rear bearing is sealed by adopting a gas seal ring, and the front bearing is sealed by an oil seal cover and a gas seal hole at the rear end; the two ends of the motor stator are provided with heat shielding devices, and different devices can be arranged on the main shaft according to different use conditions. The utility model can be used on the grinding wheel spindle or the workpiece spindle of a precision lathe, a turning and milling center or a grinding machine, and has the advantages of high precision, high rigidity, long service life, good manufacturing manufacturability, good sealing effect and the like.
Although the above-mentioned technique solves some technical problems, it does not solve the problems of reduced accuracy caused by spindle shake, abrasion, etc., and the abrasion problem increases maintenance time and cost. Therefore, a high-speed motorized spindle with small abrasion, high precision and long service life needs to be developed.
Disclosure of utility model
The utility model mainly aims to provide a high-speed electric spindle of a machine tool, which has the advantages of small abrasion, high precision and long service life, and can effectively solve the technical problems in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a high-speed dynamic-pressure permanent-magnet electric spindle comprises a casing, wherein two ends of the casing are respectively and hermetically connected with a bottom end cover and a head end cover, one end of the spindle is positioned in the casing, and the other end of the spindle penetrates through a shaft hole arranged in a head end shell;
a spiral shell channel is arranged on the inner wall of the shell body, two through holes are formed in the bottom end cover, one port of the spiral shell channel is communicated with an oil inlet through hole in the spiral shell channel, and the oil inlet through hole is connected with an oil inlet pipe; a ring channel communicated with the other end of the spiral shell channel is arranged in the head end cover;
The stator is arranged in the shell, the rotor is arranged on the main shaft, the permanent magnet is arranged on the rotor to form a permanent magnet synchronous motor, and the motor wiring is connected with a connection socket positioned on the bottom end cover;
The main shafts on two sides of the rotor are provided with shaft rings, the shaft bodies of the main shafts in the bottom end cover and the head end cover are provided with spiral grooves, and one ends of the spiral grooves correspond to the outlets arranged on the ring channels and are communicated when the main shafts rotate to the positions; the other end of the spiral groove is connected with an oil outlet cavity, the oil outlet cavity is connected with an oil outlet through hole, and the oil outlet through hole is connected with an oil outlet pipe.
Furthermore, the connection socket adopts an aviation plug for connecting with a stepping motor driver.
Further, the shell is a hollow cylinder.
Further, a motor bin and a collar bin are arranged in the shell.
The beneficial effects are that: the permanent magnet motor is adopted, and the permanent magnet motor and the main shaft are used for carrying out suspension work under an oil immersed state, so that the rotary abrasion is small, the precision is high, the cutting force is large, the service life is long, and the installation space of the sleeve-joint sealed cylinder body is saved.
Drawings
FIG. 1 is a schematic cross-sectional view of the structure of the present utility model;
In the figure: 1. the casing, 2, bottom end cover, 3, head end cover, 4, main shaft, 5, spiral shell passageway, 6, advance oil through-hole, 7, ring channel, 8, stator, 9, rotor, 10, collar, 11, helical groove, 12, play oil cavity.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model.
The present utility model will be further described with reference to example 1 with reference to the accompanying drawings and specific examples
The high-speed dynamic-pressure permanent magnet electric spindle shown in fig. 1 comprises a casing 1, wherein two ends of the casing 1 are respectively and hermetically connected with a bottom end cover 2 and a head end cover 3, one end of a spindle 4 is positioned in the casing 1, and the other end of the spindle penetrates through a shaft hole arranged in the head end cover 3. A spiral shell channel 5 is arranged on the inner wall of the shell 1, and the spiral shell channel 5 is a spiral channel manufactured in the shell and used for cooling oil.
Two through holes are formed in the bottom end cover 2, one port of the spiral shell channel 5 is communicated with an oil inlet through hole 6 in the spiral shell channel, and the oil inlet through hole 6 is connected with an oil inlet pipe; a ring channel 7 communicated with the other end of the spiral shell channel 5 is arranged in the head end cover 3. By the channel design, the cooling oil is enabled to be entirely covered in the shell along the axial direction, and a good cooling effect is achieved.
The stator 8 is arranged in the shell 1, the rotor 9 is arranged on the main shaft 4, the permanent magnet is arranged on the rotor 9 to form a permanent magnet synchronous motor, and the motor wiring is connected with a connection socket positioned on the bottom end cover; the spindle on both sides of the rotor 9 is provided with a collar 10, the spindle 4 is positioned on the spindle bodies in the bottom end cover 2 and the head end cover 3 and is provided with a spiral groove 11, and one end of the spiral groove 11 corresponds to an outlet arranged on the ring channel 7 and is communicated when rotating to the position; the other end of the spiral groove 11 is connected with an oil outlet cavity 12, the oil outlet cavity 12 is connected with an oil outlet through hole, and the oil outlet through hole is connected with an oil outlet pipe. The main shaft 4 is stressed radially, the sleeve 1 is stressed in a sliding way, the main shaft 4 is stressed axially, and the two collars serve as friction supporting discs in a sliding way. Wherein the main shaft casing 1 is made of super-strong wear-resistant materials, such as silicon carbide, which is used on the radially stressed casing 1, and the radially stressed slotting position is made of super-strong wear-resistant coating.
As a preferred design, the docking receptacle uses an aviation plug for connecting to the stepper motor driver.
As a structure, the casing 1 is a hollow cylinder. A motor bin and a collar bin are arranged in the shell 1.
The above examples are illustrative of the present application and not limiting thereof, and all extensions on the present application are within the scope of the present application.
Claims (4)
1. A high-speed dynamic pressure permanent magnetism electric main shaft which is characterized in that: the device comprises a casing, wherein two ends of the casing are respectively and hermetically connected with a bottom end cover and a head end cover, one end of a main shaft is positioned in the casing, and the other end of the main shaft penetrates through a shaft hole arranged in a head end shell;
a spiral shell channel is arranged on the inner wall of the shell body, two through holes are formed in the bottom end cover, one port of the spiral shell channel is communicated with an oil inlet through hole in the spiral shell channel, and the oil inlet through hole is connected with an oil inlet pipe; a ring channel communicated with the other end of the spiral shell channel is arranged in the head end cover;
The stator is arranged in the shell, the rotor is arranged on the main shaft, the permanent magnet is arranged on the rotor to form a permanent magnet synchronous motor, and the motor wiring is connected with a connection socket positioned on the bottom end cover;
The main shafts on two sides of the rotor are provided with shaft rings, the shaft bodies of the main shafts in the bottom end cover and the head end cover are provided with spiral grooves, and one ends of the spiral grooves correspond to the outlets arranged on the ring channels and are communicated when the main shafts rotate to the positions; the other end of the spiral groove is connected with an oil outlet cavity, the oil outlet cavity is connected with an oil outlet through hole, and the oil outlet through hole is connected with an oil outlet pipe.
2. The high-speed dynamic pressure permanent magnet electric spindle according to claim 1, wherein: the connection socket adopts an aviation plug and is used for connecting a stepping motor driver.
3. The high-speed dynamic pressure permanent magnet electric spindle according to claim 1, wherein: the shell is a hollow cylinder.
4. A high-speed dynamic pressure permanent magnet electric spindle according to claim 3, characterized in that: a motor bin and a collar bin are arranged in the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322809574.0U CN220970772U (en) | 2023-10-19 | 2023-10-19 | High-speed dynamic-pressure permanent magnet electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322809574.0U CN220970772U (en) | 2023-10-19 | 2023-10-19 | High-speed dynamic-pressure permanent magnet electric spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220970772U true CN220970772U (en) | 2024-05-17 |
Family
ID=91061289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322809574.0U Active CN220970772U (en) | 2023-10-19 | 2023-10-19 | High-speed dynamic-pressure permanent magnet electric spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220970772U (en) |
-
2023
- 2023-10-19 CN CN202322809574.0U patent/CN220970772U/en active Active
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