CN203711866U - High-speed rotation joint structure of electric spindle - Google Patents
High-speed rotation joint structure of electric spindle Download PDFInfo
- Publication number
- CN203711866U CN203711866U CN201320893333.2U CN201320893333U CN203711866U CN 203711866 U CN203711866 U CN 203711866U CN 201320893333 U CN201320893333 U CN 201320893333U CN 203711866 U CN203711866 U CN 203711866U
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- China
- Prior art keywords
- bucket
- shaft
- distributing
- axle core
- communicated
- 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 - Lifetime
Links
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 239000000110 cooling liquid Substances 0.000 claims abstract description 5
- 239000002826 coolant Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 4
- 238000003032 molecular docking Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000002955 isolation Methods 0.000 abstract 3
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000012809 cooling fluid Substances 0.000 description 15
- 239000007789 gas Substances 0.000 description 14
- 230000005611 electricity Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
A high-speed rotation joint structure of an electric spindle comprises a machine body, a distribution cylinder, a connecting base, an isolation barrel, a distribution shaft and an intake channel. The lower end of the distribution cylinder is movably connected with the upper end of a spindle core in a sleeved mode. An annular air drain is formed in the inner wall of the position, matched with the spindle core, of the distribution cylinder. The upper end of the connecting base is provided with an overflow port. The distribution shaft is connected with the interior of the isolation barrel in a penetrating mode. An overflow channel is formed between the outer surface of the distribution shaft and the inner surface of the isolation barrel. The upper end of the overflow channel is communicated with the overflow port. A gap at the position where the distribution cylinder and the spindle core are matched and a gap at the position where the distribution shaft and the spindle core are matched are located below the overflow channel and are communicated with the lower end of the overflow channel. A cooling flow pass is formed inside the distribution shaft. The lower end of the cooling flow pass is communicated with a cooling channel of the spindle core. The outer side end of the intake channel is used for being connected with an external high-pressure air source. The inner side end of the intake channel is communicated with the annular air drain. By the high-speed rotation joint structure of the electric spindle, the sealing level of the position where a rotation joint and the spindle core are matched can be increased, and redundant cooling liquid inside the electric spindle is effectively drained.
Description
Technical field
The utility model relates to a kind of high-speed joint structure of electric main shaft.
Background technology
In the electric main shaft that is applied to grinding, conventionally need to be equipped with rotary joint structure, utilize rotary joint structure to carry cooling fluid to the cooling duct of the axle core inner of electric main shaft, cooling fluid flows out from axle core front end, the mill bar of axle core front end processing work is remained under low temperature environment and work.
Affect the normal work of the inner miscellaneous part of electric main shaft for fear of cooling fluid, under normal circumstances, the position that rotary joint structure coordinates with electric main shaft axle core need to keep higher sealing, at present, normally adopt contact seal, this sealing means is higher to the requirement on machining accuracy of part, and lower grade of sealing; In addition, due to rotary joint structure and axle core employing contact seal, require rotary joint structure to rotate along with axle core, cause the import of rotary joint structure upper end cooling fluid and the syndeton of the outside equipment that cooling fluid is provided comparatively complicated.
Utility model content
For the deficiencies in the prior art, the purpose of this utility model is intended to provide a kind of high-speed joint structure of electric main shaft, and it can improve the sealing grade with axle core cooperation place, simplifies the structure of electric main shaft.
For achieving the above object, the utility model adopts following technical scheme:
The high-speed joint structure of electricity main shaft, comprises,
Body;
Be fixed on the distribution bucket of internal body, the upper end that is socketed on axle core of the bottom activity of this distribution bucket, distributes bucket to be provided with an annular gas tank with the inwall of axle core cooperation place;
Be positioned at internal body Connection Block, the upper end of Connection Block is provided with overfall;
Upper end is fixed on Connection Block and is connected to the isolating cylinder distributing in bucket;
Distributing shaft, is connected in isolating cylinder, and this distributing shaft upper end is fixedly connected on Connection Block, the upper end of distributing the part of bucket to be connected to axle core is passed in bottom; Between distributing shaft outer surface and the inner surface of isolating cylinder, form the overflow ducts of a upper end and overfall conducting; Distribute bucket be all positioned at the below of overflow ducts with the gap of axle core cooperation place and be communicated with in the bottom of overflow ducts with gap, the distributing shaft of axle core cooperation place; Distributing shaft inside is provided with one and is through to the coolant flow channel of its lower surface by its upper surface, and the upper end of this coolant flow channel forms cooling liquid inlet, a bottom and is communicated with the cooling duct of axle core;
Inlet channel, its outboard end is used for connecting external high pressure source of the gas, and medial extremity conducting is to annular gas tank.
The outer setting of distributing shaft has a shaft shoulder, and this shaft shoulder is snap-fit at and distributes between bucket and isolating cylinder, and the part of distributing bucket to be positioned at shaft shoulder below forms a container cavity; Distribute the gap of gap, distributing shaft and the axle core cooperation place of bucket and axle core cooperation place to be all communicated in the below of container cavity, on the shaft shoulder, be provided with the through hole of container cavity top and the connection of overflow ducts bottom.
Internal body is also fixed with a holder, is provided with one and is communicated with the outboard end of inlet channel and for docking the air inlet of extraneous high-pressure air source delivery outlet on this holder.
Inlet channel ecto-entad is successively through body, holder, distribution bucket.
The beneficial effects of the utility model are:
Than prior art, the utility model rotary joint structure is fixed on electric main shaft body, the gap location that it coordinates with axle core adopts high-pressure gas seal, than existing contact seal mode, requirement on machining accuracy to axle core and miscellaneous part is lower, simplified parts machining process, and improved the grade of sealing, rotary joint structure need to be along with axle core rotates; In addition, unnecessary cooling fluid can be discharged from electric main shaft, when avoiding cooling fluid waste, prevent that cooling fluid from affecting other parts of internal body.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Wherein: 10, holder; 11, air inlet; 20, Connection Block; 21, overfall; 30, distributing shaft; 31, coolant flow channel; 32, the shaft shoulder; 33, through hole; 40, distribute bucket; 41, annular gas tank; 42, container cavity; 50, isolating cylinder; 51, overflow ducts; 60, body; 70, axle core; 71, cooling duct; 80, inlet channel.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the utility model is described further:
As shown in Figure 1, be the high-speed joint structure of the utility model electricity main shaft, it comprises body 60, distribution bucket 40, Connection Block 20, isolating cylinder 50, distributing shaft 30, the inlet channel 80 of electric main shaft; Wherein, distribution bucket 40 is fixed on body 60 inside and is positioned at axle core 70 tops of electric main shaft, the upper end that is socketed in axle core 70 of the bottom activity of this distribution bucket 40, and axle core 70 can be with respect to distributing bucket 40 rotations; Between axle core 70 and distribution bucket 40, form one first fit clearance, and distribute bucket 40 and the inwall of axle core 70 cooperation places to be provided with an annular gas tank 41, the first fit clearance between distribution bucket 40 and axle core 70 is communicated with this annular gas tank 41.Connection Block 20 is positioned at body 60 inside and is arranged on the top of distributing bucket 40, on Connection Block 20, be provided with an overfall 21 being communicated with outside collecting device, in addition, Connection Block 20 is also for fixed allocation axle 30 and isolating cylinder 50, concrete is, isolating cylinder 50 cross-under are distributing bucket 40 inside, and its upper end is fixedly connected on Connection Block 20, the airtight laminating of inner surface of the outer surface of this isolating cylinder 50 and distribution bucket 40; Distributing shaft 30 cross-under are fixed on isolating cylinder 50 inside, its upper end is fixed on Connection Block 20, the external diameter of distributing shaft 30 is less than the internal diameter of isolating cylinder 50, between the outer surface of distributing shaft 30 and the inner surface of isolating cylinder 50, form an overflow ducts 51, this overflow ducts 51 upwards extend to always the upper end of isolating cylinder 50 and distributing shaft 30 and with overfall 21 conductings.The bottom of distributing shaft 30 is passed isolating cylinder 50, is distributed the part cross-under of bucket 40 in axle core 70 upper ends, thus, forms second fit clearance between axle core 70 and distributing shaft 30; On distributing shaft 30, be provided with one and be through to the coolant flow channel 31 of its lower surface by its upper surface, the part that the upper end of this coolant flow channel 31 protrudes from Connection Block 20 forms cooling liquid inlet, a bottom and is communicated with 71 upper ends, cooling duct on axle core 70.Above-mentioned the first fit clearance, the second fit clearance is all positioned at the bottom of overflow ducts 51 and is all communicated with the bottom of overflow ducts 51.
The outboard end of above-mentioned inlet channel 80 is for connecting outside high-pressure air source, medial extremity is extremely above-mentioned annular gas tank 41 of conducting, in the time of electric main shaft work, external high pressure origin enters into annular gas tank 41 from inlet channel 80, simultaneously, cooling fluid enters from the cooling liquid inlet of coolant flow channel 31 upper ends, the cooling fluid coolant flow channel 31 of postponing enters into the cooling duct 71 on axle core 70, and thereby the cooling duct 71 bottoms outlets of postponing enter into mill bar and carry out cooling to working end and the workpiece of mill bar, gases at high pressure enter into after annular gas tank 41, the first fit clearance forming between axle core 70 and distribution bucket 40 is implemented to air seal, unnecessary cooling fluid enters into the second fit clearance via the joint of coolant flow channel 31 and cooling duct 71, and postpone the second fit clearance upwards, arrive the upper end of the first fit clearance and the second fit clearance, from the first fit clearance upper end gases at high pressure out, unnecessary cooling fluid herein is upwards promoted, make the unnecessary cooling fluid overflow ducts 51 of postponing move up to overfall 21 places, reclaim via collecting device again.
For the ease of installing, on above-mentioned distributing shaft 30, be provided with a shaft shoulder 32, the shaft shoulder 32 is snap-fit at and distributes between the bucket step position of 40 bottoms and the lower surface of isolating cylinder 50, thereby distributing shaft 30 is fixed with distributing bucket 40 and isolating cylinder 50, the space of distributing bucket 40 to be positioned at the below of the shaft shoulder 32 forms a container cavity 42, this container cavity 42 is specifically by the upper surface of axle core 70, distribute diapire and the sidewall of bucket 40, the lower surface of the shaft shoulder 32 surrounds, that is to say, the first above-mentioned fit clearance is concordant with the upper end of the second fit clearance, and its two are all the belows that are communicated in container cavity 42, on the shaft shoulder 32, be provided with the through hole 33 that this container cavity 42 is communicated with overflow ducts 51, under the effect of gases at high pressure, unnecessary cooling fluid enters into container cavity 42, and in container cavity 42 inside, the gases at high pressure through hole 33 of again cooling fluid being postponed is sent in overflow ducts 51.
Also be fixed with a holder 10 in above-mentioned body 60 inside, on this holder 10, be provided with one and be communicated with the outboard end of inlet channel 80 and for docking the air inlet 11 of extraneous high-pressure air source delivery outlet, 80 of inlet channels by being opened in successively body 60, holder 10, distribute passage on bucket 40 to interconnect to form.
To one skilled in the art, can be according to technical scheme described above and design, make other various corresponding changes and deformation, and within these all changes and deformation all should belong to the protection domain of the utility model claim.
Claims (4)
1. the high-speed joint structure of electric main shaft, is characterized in that, comprise,
Body;
Be fixed on the distribution bucket of internal body, the upper end that is socketed on axle core of the bottom activity of this distribution bucket, distributes bucket to be provided with an annular gas tank with the inwall of axle core cooperation place;
Be positioned at internal body Connection Block, the upper end of Connection Block is provided with overfall;
Upper end is fixed on Connection Block and is connected to the isolating cylinder distributing in bucket;
Distributing shaft, is connected in isolating cylinder, and this distributing shaft upper end is fixedly connected on Connection Block, the upper end of distributing the part of bucket to be connected to axle core is passed in bottom; Between distributing shaft outer surface and the inner surface of isolating cylinder, form the overflow ducts of a upper end and overfall conducting; Distribute bucket be all positioned at the below of overflow ducts with the gap of axle core cooperation place and be communicated with in the bottom of overflow ducts with gap, the distributing shaft of axle core cooperation place; Distributing shaft inside is provided with one and is through to the coolant flow channel of its lower surface by its upper surface, and the upper end of this coolant flow channel forms cooling liquid inlet, a bottom and is communicated with the cooling duct of axle core;
Inlet channel, its outboard end is used for connecting external high pressure source of the gas, and medial extremity conducting is to annular gas tank.
2. the high-speed joint structure of electric main shaft as claimed in claim 1, is characterized in that, the outer setting of distributing shaft has a shaft shoulder, and this shaft shoulder is snap-fit at and distributes between bucket and isolating cylinder, and the part of distributing bucket to be positioned at shaft shoulder below forms a container cavity; Distribute the gap of gap, distributing shaft and the axle core cooperation place of bucket and axle core cooperation place to be all communicated in the below of container cavity, on the shaft shoulder, be provided with the through hole of container cavity top and the connection of overflow ducts bottom.
3. the high-speed joint structure of electric main shaft as claimed in claim 1, is characterized in that, internal body is also fixed with a holder, is provided with one and is communicated with the outboard end of inlet channel and for docking the air inlet of extraneous high-pressure air source delivery outlet on this holder.
4. the high-speed joint structure of electric main shaft as claimed in claim 3, is characterized in that, inlet channel ecto-entad is successively through body, holder, distribution bucket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893333.2U CN203711866U (en) | 2013-12-31 | 2013-12-31 | High-speed rotation joint structure of electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893333.2U CN203711866U (en) | 2013-12-31 | 2013-12-31 | High-speed rotation joint structure of electric spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711866U true CN203711866U (en) | 2014-07-16 |
Family
ID=51151065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320893333.2U Expired - Lifetime CN203711866U (en) | 2013-12-31 | 2013-12-31 | High-speed rotation joint structure of electric spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711866U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174880A (en) * | 2014-08-27 | 2014-12-03 | 江苏星晨高速电机有限公司 | Non-contact hollow water draining device applied to horizontal type electric spindle and used for replacing rotary joint |
| CN105846415A (en) * | 2016-05-09 | 2016-08-10 | 国家电网公司 | Extra-high-voltage transformer station optical cable terminal voltage-limiting apparatus |
| CN107378004A (en) * | 2017-07-12 | 2017-11-24 | 广州市昊志机电股份有限公司 | A kind of contact central water outlet permanent magnet synchronization motor spindle |
-
2013
- 2013-12-31 CN CN201320893333.2U patent/CN203711866U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104174880A (en) * | 2014-08-27 | 2014-12-03 | 江苏星晨高速电机有限公司 | Non-contact hollow water draining device applied to horizontal type electric spindle and used for replacing rotary joint |
| CN105846415A (en) * | 2016-05-09 | 2016-08-10 | 国家电网公司 | Extra-high-voltage transformer station optical cable terminal voltage-limiting apparatus |
| CN107378004A (en) * | 2017-07-12 | 2017-11-24 | 广州市昊志机电股份有限公司 | A kind of contact central water outlet permanent magnet synchronization motor spindle |
| CN107378004B (en) * | 2017-07-12 | 2023-04-25 | 广州市昊志机电股份有限公司 | Contact type central water outlet permanent magnet synchronous electric spindle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |