CN203917957U - Can realize main shaft cooling electric main axle structure automatically - Google Patents
Can realize main shaft cooling electric main axle structure automatically Download PDFInfo
- Publication number
- CN203917957U CN203917957U CN201420359057.6U CN201420359057U CN203917957U CN 203917957 U CN203917957 U CN 203917957U CN 201420359057 U CN201420359057 U CN 201420359057U CN 203917957 U CN203917957 U CN 203917957U
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- China
- Prior art keywords
- main shaft
- pull bar
- passage
- hollow spindle
- hollow
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- Expired - Fee Related
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Abstract
Realize a main shaft cooling electric main axle structure automatically, comprise hollow spindle and pull bar, the Surface Machining of described pull bar has helical blade, should be arranged in the hollow cavity of hollow spindle with the pull bar of helical blade; On axis body between outer wall and the hollow cavity of described hollow spindle, be processed with vertically passage, the hollow cavity of this passage and hollow spindle is communicated with.The utility model, by being processed with the main shaft of passage and just can realizing the forced convection heat radiation of electric main shaft with the structure innovation of the pull bar of helical blade, does not need additional equipment to carry out auxiliary heat dissipation, and global reliability is high, does not rely on auxiliary device and carries out work.
Description
Technical field
the utility model relates to the electric main shaft of High Speed NC Machine Tools, specifically refers to a kind of main shaft cooling electric main axle structure automatically of realizing.
Background technology
electricity main shaft is the Core Feature parts of realizing High Speed NC Machine Tools, the version that it adopts spindle motor and machine tool chief axis to unite two into one, and therefore, built-in motor heating is inevitable on the impact of electric main shaft.Existing cooling provision (coolant jacket and bearing oil gas lubricating system) can be taken away power attenuation heating and the bearing friction heating of stator effectively, and the directly not effective heat radiation approach of rotor, the main shaft thermal walking that rotor heating causes reduces the life-span of electric main shaft and machining accuracy.
Utility model content
the utility model provides a kind of main shaft cooling electric main axle structure automatically of realizing, and for main shaft provides a kind of efficiently radiates heat approach, can effectively reduce temperature rise and the thermal walking of main shaft, improves life-span and the machining accuracy of electric main shaft.
for this reason, adopt following technical scheme:
Realize a main shaft cooling electric main axle structure automatically, comprise hollow spindle and pull bar, the Surface Machining of described pull bar has helical blade, should be arranged in the hollow cavity of hollow spindle with the pull bar of helical blade; On axis body between outer wall and the hollow cavity of described hollow spindle, be processed with vertically passage, the hollow cavity of this passage and hollow spindle is communicated with.
Described passage is divided into inside and outside circle passage, and this inside and outside circle passage is communicated with respectively with the two ends of hollow cavity.
Described pull bar is made up of high strength titanium alloy.
advantage of the present utility model: 1, by being processed with the main shaft of passage and just can realizing the forced convection heat radiation of electric main shaft with the structure innovation of the pull bar of helical blade, do not need additional equipment to carry out auxiliary heat dissipation, global reliability is high, does not rely on auxiliary device and carries out work; 2, on pull bar, process helical blade comparatively easy, main axle structure changes less, only needs the inside and outside two circle passages of processing.Except the structural change of main shaft and pull bar, other parts of electric main shaft all need not anyly change.3, optional this intensity titanium alloy of rod material, this material has the advantages such as high-tensile, high rigidity and low-density, and its density only has 60% of common iron, can greatly reduce the impact of pull bar helical blade centrifugal force.
Brief description of the drawings
fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation that dissects of the utility model main shaft;
Fig. 3 is Fig. 2 side view;
Fig. 4 is the structural representation of the utility model pull bar.
Reference numeral and name are called: cutter 1, housing 2, bearing 3, coolant jacket 4, stator 5, rotor 6, main shaft 7, pull bar 8, disk spring 9, pressure ring 10, nut 11, inner ring passage 12, outer ring passage 13.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of main shaft cooling electric main axle structure automatically of realizing, comprises hollow spindle and pull bar, and the Surface Machining of described pull bar 8 has helical blade, should be arranged in the hollow cavity of hollow spindle 7 with the pull bar 8 of spiral; On axis body between outer wall and the hollow cavity of described hollow spindle 7, be processed with vertically passage, the hollow cavity of this passage and hollow spindle 7 is communicated with.Described passage is divided into inside and outside circle passage 12,13, and this inside and outside circle passage 12,13 is communicated with respectively with the two ends of hollow cavity.
Main shaft concrete structure as shown in Figure 2,3, the utility model has just been processed respectively inside and outside two circle passages on existing main axle structure main shaft distal end faces, and pull bar is also processed as the pull bar with helical blade, the installation of main shaft and pull bar is completely according to prior art.And the automatic cooling main device of electric main shaft is to be processed with the hollow spindle 7 of passage and the pull bar 8 with helical blade.In the time that electric main shaft forward (turning clockwise) is carried out machining, hot-air between pull bar 8 and main shaft 7 inwalls is subject to the squeezing action of helical blade and accelerates to flow, discharge from the inner ring passage 12 of main shaft 7, cool ambient air sucks from main shaft 7 outer ring passages 13 simultaneously, in main shaft 7 inwalls and passage, form forced-convection heat transfer like this, reach the object to Spindle's heat emission.In the time of electric main shaft reversion (being rotated counterclockwise), the flow direction of air changes, and main shaft 7 inner ring passages 12 become air admission hole, and outer ring passage 13 becomes steam vent.
pull bar is the parts that power is provided for the automatic cooling convection current air of main shaft.As shown in Figure 4, pull bar outer surface processes helical blade to pull bar concrete structure, and the air in the time that pull bar rotates in outer surface helicla flute is squeezed and moves forward, and in main shaft inwall and passage, forms forced-convection heat transfer, reduces rotating shaft temperature.
rod material is high strength titanium alloy, as: Ti-13V-11Cr-3Al, Ti-15V-4Cr-3Sn, Ti-10V-2Fe-3Al etc., such material has the advantages such as high-tensile, high rigidity and low-density, its density only has 60% of common iron, can greatly reduce the impact of pull bar spiral centrifugal power.
Claims (3)
1. can realize a main shaft cooling electric main axle structure automatically, comprise hollow spindle and pull bar, it is characterized in that: the Surface Machining of described pull bar (8) has helical blade, should be arranged in the hollow cavity of hollow spindle (7) with the pull bar (8) of spiral; On axis body between outer wall and the hollow cavity of described hollow spindle (7), be processed with vertically passage, the hollow cavity of this passage and hollow spindle (7) is communicated with.
2. a kind of main shaft cooling electric main axle structure automatically of realizing according to claim 1, is characterized in that: described passage is divided into inside and outside circle passage (12,13), and this inside and outside circle passage (12,13) is communicated with respectively with the two ends of hollow cavity.
3. a kind of main shaft cooling electric main axle structure automatically of realizing according to claim 1, is characterized in that: described pull bar (8) is made up of high strength titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359057.6U CN203917957U (en) | 2014-07-01 | 2014-07-01 | Can realize main shaft cooling electric main axle structure automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359057.6U CN203917957U (en) | 2014-07-01 | 2014-07-01 | Can realize main shaft cooling electric main axle structure automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203917957U true CN203917957U (en) | 2014-11-05 |
Family
ID=51813838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420359057.6U Expired - Fee Related CN203917957U (en) | 2014-07-01 | 2014-07-01 | Can realize main shaft cooling electric main axle structure automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203917957U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057108A (en) * | 2014-07-01 | 2014-09-24 | 兰州理工大学 | Electric spindle structure capable of realizing automatic cooling of spindle |
| CN104942649A (en) * | 2015-07-21 | 2015-09-30 | 安阳工学院 | Internal and external cooling structure for high-speed motorized spindle |
| TWI593500B (en) * | 2016-01-21 | 2017-08-01 | She Hong Industrial Co Ltd | Spindle with cooling circuit |
-
2014
- 2014-07-01 CN CN201420359057.6U patent/CN203917957U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057108A (en) * | 2014-07-01 | 2014-09-24 | 兰州理工大学 | Electric spindle structure capable of realizing automatic cooling of spindle |
| CN104942649A (en) * | 2015-07-21 | 2015-09-30 | 安阳工学院 | Internal and external cooling structure for high-speed motorized spindle |
| TWI593500B (en) * | 2016-01-21 | 2017-08-01 | She Hong Industrial Co Ltd | Spindle with cooling circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20160701 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |