CN208158324U - A kind of brushless motor for milling - Google Patents
A kind of brushless motor for milling Download PDFInfo
- Publication number
- CN208158324U CN208158324U CN201820790111.0U CN201820790111U CN208158324U CN 208158324 U CN208158324 U CN 208158324U CN 201820790111 U CN201820790111 U CN 201820790111U CN 208158324 U CN208158324 U CN 208158324U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- shell
- brushless motor
- rotor
- milling
- 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.)
- Expired - Fee Related
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- Brushless Motors (AREA)
Abstract
The utility model discloses a kind of brushless motors for milling, including shell, stator, main shaft, rotor；The stator is mounted in shell；The rotor is set in stator；The main shaft is threaded through on rotor；It is installed in the housing by two deep groove ball bearings the front end of the main shaft；The outer end face edge of the main shaft is axially arranged with mounting hole；Annular convex platform is set in the middle part of the main shaft；The outer end circumferential surface of the main shaft is equipped with annular groove；Square groove is symmetrically arranged on the bottom surface of the annular groove.The utility model clever structure, shaft Front-end Design can improve concentricity, the stability of motor entirety with the tapered hole of shock mount collet chuck, can it is extremely convenient by Cutting tool installation manner in shaft, such as milling cutter, stable connection.
Description
Technical field
The utility model relates to a kind of brushless motors for milling.
Background technique
Rail in use for some time, can generate rail lip, in order to ensure the safety of railway transportation, can produce to rail
Raw fat edges is cut off.The method cut off at present to rail lip is cut off using milling, because rail is to be fixed on
Outdoor, therefore the device of milling rail is the small-sized milling attachment that can be moved, the driving of milling attachment is small-sized brushless
Motor driven, existing brushless motor can not be directly connected to milling cutter, need to connect milling cutter by axle sleeve or connector sleeve, stability compared with
Difference, because the vibration that milling makes also is easy to cause the drive shaft of motor and milling cutter to be detached from.Therefore, it is necessary to design it is a kind of convenient for
The brushless motor for milling that milling cutter is directly connected to.
Utility model content
The purpose of the utility model is to provide a kind of brushless motors for milling convenient for being directly connected to milling cutter.
Realizing the technical solution of the utility model aim is：A kind of brushless motor for milling, including shell, stator,
Main shaft, rotor；The stator is mounted in shell；The rotor is set in stator；The main shaft is threaded through on rotor；The master
Axis is installed in the housing by two bearings；The outer end face edge of the main shaft is axially arranged with mounting hole；The middle part of the main shaft
If annular convex platform；The outer end bottom surface of the main shaft is equipped with annular groove；Square groove is symmetrically arranged on the circumferential surface of the annular groove.
The shell includes shell and drive end bearing bracket；The drive end bearing bracket is fixed on the port of shell；The front end of the main shaft
Through drive end bearing bracket；One of bearing on the main shaft is fixed in drive end bearing bracket.
The mounting hole of the main shaft is the tapered hole that aperture is gradually successively decreased by outer end edges to middle part.
The outer end of the main shaft is equipped with external screw thread.
The main shaft is less than the diameter in annular convex platform front end in annular convex platform rear end diameter.
The diameter of the rear-end of spindle is minimum diameter.
The drive end bearing bracket of the shell is equipped with the groove being coaxially disposed with axis hole on the inner wall at axis hole edge.
The main shaft is equipped with the elongated slot radially extended on the position of connection rotor；The elongated slot is distributed along the circumference with more
It is a.
The cross-sectional area at the rear portion of the drive end bearing bracket of the shell is greater than the cross-sectional area of front；The rear portion of the end cap is with before
The outer wall of portion's intersection is equipped with annular protrusion.
The bearing is deep groove ball bearing.
Using above-mentioned technical proposal, the utility model has beneficial effect below：(1) the utility model structure is skilful
Wonderful, shaft Front-end Design can install the tapered hole of collet chuck, improve concentricity, the stability of motor entirety, can
It is extremely convenient by Cutting tool installation manner in shaft, such as milling cutter, stable connection.
(2) aperture of the mounting hole of the main shaft of the utility model is gradually successively decreased by outer end edges to middle part, more convenient for being applicable in
The workpiece of kind dimensions, connects more stable.
(3) outer end of the main shaft of the utility model is equipped with external screw thread, convenient for connecting with workpiece.
(4) main shaft of the utility model is less than the diameter in annular convex platform front end, stability in annular convex platform rear end diameter
It is higher.
(5) drive end bearing bracket of the shell of the utility model is recessed equipped with being coaxially disposed with axis hole on the inner wall at axis hole edge
Slot is convenient for fixing bearing, keeps the installation of bearing more stable.
(6) cross-sectional area at the rear portion of the drive end bearing bracket of the shell of the utility model is greater than the cross-sectional area of front, end cap
The outer wall of rear portion and front intersection is equipped with annular protrusion, convenient for whole fixation.
Detailed description of the invention
In order to make the content of the utility model be easier to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model, wherein
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the cross-sectional view of the drive end bearing bracket of the shell of the utility model.
Fig. 3 is the a-quadrant enlarged drawing of Fig. 2.
Fig. 4 is the B area enlarged drawing of Fig. 2.
Fig. 5 is the structural schematic diagram of the main shaft of the utility model.
Fig. 6 is the cross-sectional view of the main shaft of the utility model.
In attached drawing marked as：
Shell 1, shell 1-1, drive end bearing bracket 1-2, groove 1-2-1, annular protrusion 1-2-2, main shaft 2, mounting hole 2-1, annular
Boss 2-2, annular groove 2-3, square groove 2-4, external screw thread 2-5, elongated slot 2-6.
Specific embodiment
(embodiment 1)
See Fig. 1 to Fig. 6, the brushless motor for milling of the present embodiment, including shell 1, stator, main shaft 2, rotor.It is fixed
Son is mounted in shell 1.Rotor is set in stator.Main shaft 2 is threaded through on rotor.Main shaft 2 is mounted on shell by two bearings
In body 1.Bearing is deep groove ball bearing.The outer end face edge of main shaft 2 is axially arranged with mounting hole 2-1.The middle part of main shaft 2 sets annular convex platform
2-2.The outer end bottom surface of main shaft 2 is equipped with annular groove 2-3.Square groove 2-4 is symmetrically arranged on the circumferential surface of annular groove 2-3.
Shell 1 includes shell 1-1 and drive end bearing bracket 1-2.Drive end bearing bracket 1-2 is fixed on the port of shell 1-1.Before main shaft 2
Drive end bearing bracket 1-2 is run through at end.One of bearing on main shaft 2 is fixed in drive end bearing bracket 1-2.The mounting hole 2-1 of main shaft 2 is aperture
The tapered hole gradually to be successively decreased by outer end edges to middle part.The outer end of main shaft 2 is equipped with external screw thread 2-5.Main shaft 2 is in annular convex platform 2-
2 rear end diameters are less than the diameter in the front end annular convex platform 2-2.The diameter of 2 rear end of main shaft is minimum diameter.The drive end bearing bracket of shell 1
1-2 is equipped with the groove 1-2-1 being coaxially disposed with axis hole on the inner wall at axis hole edge.Main shaft 2 is set on the position of connection rotor
There is the elongated slot 2-6 radially extended.Elongated slot 2-6 is distributed along the circumference with multiple.The cross section at the rear portion of the drive end bearing bracket 1-2 of shell 1
Product is greater than the cross-sectional area of front.The rear portion of end cap 1-2 and the outer wall of front intersection are equipped with annular protrusion 1-2-2.
In use, by the annular convex platform 2-2 of the top insertion main shaft 2 of milling cutter stage property, and the external screw thread with 2 end of main shaft
2-5 is screwed togather.
Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that being not limited to this foregoing is merely specific embodiment of the utility model
Utility model, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should all wrap
Containing being within the protection scope of the utility model.
Claims (10)
1. a kind of brushless motor for milling, including shell (1), stator, main shaft (2), rotor；The stator is mounted on shell
(1) in；The rotor is set in stator；The main shaft (2) is threaded through on rotor；The main shaft (2) passes through two bearing peaces
In shell (1)；It is characterized in that：The outer end face edge of the main shaft (2) is axially arranged with mounting hole (2-1)；The main shaft (2)
Middle part set annular convex platform (2-2)；The outer end circumferential surface of the main shaft (2) is equipped with annular groove (2-3)；The annular groove (2-3)
Bottom surface on be symmetrically arranged with square groove (2-4).
2. a kind of brushless motor for milling according to claim 1, it is characterised in that：The shell (1) includes outer
Shell (1-1) and drive end bearing bracket (1-2)；The drive end bearing bracket (1-2) is fixed on the port of shell (1-1)；The front end of the main shaft (2)
Through drive end bearing bracket (1-2)；One of bearing on the main shaft (2) is fixed in drive end bearing bracket (1-2).
3. a kind of brushless motor for milling according to claim 2, it is characterised in that：The installation of the main shaft (2)
Hole (2-1) is the tapered hole that aperture is gradually successively decreased by outer end edges to middle part.
4. a kind of brushless motor for milling according to claim 2, it is characterised in that：The outer end of the main shaft (2)
It is equipped with external screw thread (2-5).
5. a kind of brushless motor for milling according to claim 4, it is characterised in that：The main shaft (2) is in annular
Boss (2-2) rear end diameter is less than the diameter in the front end annular convex platform (2-2).
6. a kind of brushless motor for milling according to claim 2, it is characterised in that：Main shaft (2) rear end
Diameter is minimum diameter.
7. a kind of brushless motor for milling according to claim 2, it is characterised in that：The front end of the shell (1)
It covers (1-2) and is equipped with the groove (1-2-1) being coaxially disposed with axis hole on the inner wall at axis hole edge.
8. a kind of brushless motor for milling according to claim 1, it is characterised in that：The main shaft (2) is connecting
The position of rotor is equipped with the elongated slot (2-6) radially extended；The elongated slot (2-6) is distributed along the circumference with multiple.
9. a kind of brushless motor for milling according to claim 2, it is characterised in that：The front end of the shell (1)
The cross-sectional area for covering the rear portion of (1-2) is greater than the cross-sectional area of front；The rear portion of the drive end bearing bracket (1-2) and front intersection
Outer wall is equipped with annular protrusion (1-2-2).
10. a kind of brushless motor for milling according to claim 1, it is characterised in that：The bearing is deep-groove ball
Bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820790111.0U CN208158324U (en) | 2018-05-24 | 2018-05-24 | A kind of brushless motor for milling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820790111.0U CN208158324U (en) | 2018-05-24 | 2018-05-24 | A kind of brushless motor for milling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208158324U true CN208158324U (en) | 2018-11-27 |
Family
ID=64388308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820790111.0U Expired - Fee Related CN208158324U (en) | 2018-05-24 | 2018-05-24 | A kind of brushless motor for milling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208158324U (en) |
-
2018
- 2018-05-24 CN CN201820790111.0U patent/CN208158324U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181127 |