CN209130178U - Electro spindle is fully cooled sealing structure - Google Patents
Electro spindle is fully cooled sealing structure Download PDFInfo
- Publication number
- CN209130178U CN209130178U CN201821960549.5U CN201821960549U CN209130178U CN 209130178 U CN209130178 U CN 209130178U CN 201821960549 U CN201821960549 U CN 201821960549U CN 209130178 U CN209130178 U CN 209130178U
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- China
- Prior art keywords
- stator
- radial
- limiting slot
- electro spindle
- bearing sleeve
- Prior art date
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- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000001816 cooling Methods 0.000 claims abstract description 41
- 239000012530 fluid Substances 0.000 claims abstract description 32
- 230000009977 dual effect Effects 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 11
- 239000000498 cooling water Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 5
- 239000002826 coolant Substances 0.000 abstract description 11
- 239000007788 liquid Substances 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 20
- 238000000280 densification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
A kind of electro spindle is provided and is fully cooled sealing structure, the cylindrical shell external cylindrical surface cutting stator spiral fluid passageway for the motor stator having；And stator spiral fluid passageway both ends outside i.e. motor stator cylindrical shell shaft end passes through the dual radial seal that the second sealing ring in the first sealing ring and the second radial direction limiting slot parallel with the first radial limiting slot and the second radial direction limiting slot in the first radial limiting slot and the first radial limiting slot realizes the cooling shaft end of motor stator water with the faying face of stator water jacket shaft end respectively；And radial leak-off chute is formed with the two parallel, spaced-apart certain distance between the first radial limiting slot and the second radial limiting slot of the dual radial seal in motor stator shaft end.The utility model is compact-sized；Cooling dust-obstructing efficiency is superior；It seals excellent；And coolant liquid after can leak sealing ring is discharged to outside electro spindle shell in time；While sufficiently taking away the heat of electro spindle high speed rotation generation, reduce the electro spindle maintenance frequency；Extend the electro spindle service life.
Description
Technical field
The utility model category electro spindle cooling technology field, and in particular to a kind of electro spindle is fully cooled sealing structure.
Background technique
Currently, electro spindle is the new skill that machine tool chief axis and spindle motor combine together occurred in digit ctrol machine tool field
Art.Have many advantages, such as that compact-sized, light-weight, inertia is small, noise is low, response is fast.But since motor is integrated in by electro spindle
In main axle unit, electric machine built-in, shell seal, and revolving speed is very high, the heat and front and back bearings friction that power of motor loss generates
The heat of generation can not drain in time, form complicated temperature field so as to cause electro spindle inside, make the thermal characteristic of electro spindle
It is deteriorated with dynamic characteristic, to influence the normal work of electro spindle.In Precision Machining, the institute of the mismachining tolerance as caused by thermal deformation
The ratio accounted for is up to 40%-70% or so.Therefore, electro spindle needs to be equipped with necessary cooling structure.Under the prior art, electro spindle
Cooling structure design have problems in that: 1, the cooling bath in stator water jacket be along stator shaft orientation linear through slot design；
Film-cooled heat is limited；Cooling effect is bad；2, lack the Drainage Design after leaking at sealing ring；3, motor stator water
Sealing is realized using a sealing ring in motor stator shaft end between set and motor stator；Dust-proof and coolant seal dependence one is close
Seal is realized；Once abrasion, sealing and dust-proof effect are affected simultaneously；The Breakdown Maintenance frequency increases；Cooling and sealing effect
Fruit is left to be desired and improves.For this purpose, existing, the following technical solutions are proposed.
Utility model content
The technical problem solved by the utility model is:to provide a kind of electro spindles to be fully cooled sealing structure；Solve background technique
Involved in technical problem；Sufficiently take away the heat of electro spindle high speed rotation generation；Reduce the maintenance frequency；Extend the main shaft longevity
Life.
The technical solution adopted in the utility model: electro spindle is fully cooled sealing structure, has rotor, motor stator
With stator water jacket, it is characterised in that: the external cylindrical surface cutting stator screw fluid for the cylindrical shell that the motor stator has
Channel；Stator spiral fluid passageway both ends outside, the i.e. knot of motor stator cylindrical shell shaft end and stator water jacket shaft end
Conjunction face pass through respectively the first radial limiting slot and the first sealing ring in the first radial limiting slot and with the first radial limiting slot
The second sealing ring in the radial limiting slot of parallel second and the second radial limiting slot realizes the cooling shaft end of motor stator water
Dual radial seal；And between the first radial limiting slot of the dual radial seal in motor stator shaft end and the second radial limiting slot with
The two parallel, spaced-apart certain distance is formed with radial leak-off chute.
It is the heat for sufficiently taking away electro spindle in above-mentioned technical proposal；Realize that stator and being fully cooled for bearing sleeve follow
Ring, further: the stator water jacket is fixed with one with headstock, and passes through the bearing holder (housing, cover) of the connected electro spindle front end of headstock
The connected bearing sleeve water jacket of sealing outside cylinder and bearing sleeve；The external cylindrical surface cutting bearing sleeve spiral shell of the bearing sleeve
Rotary fluid channel；The bearing sleeve spiral fluid passageway and stator spiral fluid passageway pass through the diversion trench being formed in headstock
It is connected.
It is densification structure in above-mentioned technical proposal, and simplifies cooling line design, realizes electro spindle stator and bearing holder (housing, cover)
The cooling cycle of cylinder composition: the stator water jacket is the shell of square-outside and round-inside, and its square casing matches pair with head of a bed tank shell
It connects and seals fastening and be linked together；Wherein the shell of stator water jacket is axially that symmetry axis is respectively equipped with a cooling with motor stator
Water inlet pipe and a cooling water outlet pipe；The cooling water inlet pipe and cooling water outlet pipe and stator spiral fluid passageway and bearing sleeve
The circulation cooling circuit of spiral fluid passageway connection composition motor stator and bearing sleeve.
In above-mentioned technical proposal, to guarantee sealing effect, further: the stator water jacket and headstock, headstock with
The faying face of bearing sleeve, bearing sleeve and bearing sleeve water jacket is equipped with sealing ring and is sealed by sealing ring and is connected.
In above-mentioned technical proposal, to guarantee sealing effect, while solving close after motor stator shaft end cooling circuit leakage
Drainage problem is held, further: first sealing ring, the second sealing ring are O-ring seal；The radial direction leak-off chute is single
Ring radial direction leak-off chute；And the drainage hole that monocycle radial direction leak-off chute and stator jacket sidewall are formed with interlinks so that electricity master is discharged in leak
Outside shaft housing；The drainage hole, which respectively corresponds each radial leak-off chute and is located at the forward and backward shaft end of stator water jacket, independently opens system.
The utility model compared with prior art the advantages of:
1, the more single sealing ring sealing of the structure of the dual radial seal in this programme motor stator shaft end；Second sealing ring in outside
With dust-proof and water-stop effect；First sealing ring of inside has water-stop effect；Dual radial seal is close compared with shaft end one
The significant effect of seal sealing is promoted；Leak-off chute collective effect processed is opened between the collaboration dual radial direction seal ring in shaft end；Even if from
It is leaked at one sealing ring, coolant liquid can successfully drain from leak-off chute to outside electro spindle shell；Sealing, dust reduction capability are equal
It is obviously improved；At the same time, the drainage problem after also efficiently solving coolant liquid leakage；
2, the design of this programme bearing sleeve and motor stator external cylindrical surface cutting spiral fluid passageway, relatively axial system of opening are led to
The structure of cooling duct is arranged in slot, and coolant liquid circulation length dramatically increases；Film-cooled heat significantly increases；Cooling effect is excellent；
3, this programme in headstock by being arranged diversion trench；Not only for motor stator, and it is same for bearing sleeve
It is cooling that sample realizes radial spiral；The more only cooling electric spindle design of motor stator can sufficiently take away the production of electro spindle high speed rotation
Raw heat；Guarantee its precision；It prolongs its service life；
4, this programme uses the spiral of a cooling water inlet pipe, a cooling water outlet pipe and motor stator and bearing sleeve
It is in fluid communication；It is more simplified for the cooling inlet and outlet pipe system arrangement of motor stator and main shaft bearing sleeve more respectively；
Cooling cycle is more smooth.
Detailed description of the invention
Fig. 1 is a kind of schematic perspective view of embodiment of the utility model；
Fig. 2 is the C-C cross-sectional view of Fig. 1 embodiment；
Fig. 3 is the sectional perspective structural schematic diagram inside Fig. 2 embodiment；
Fig. 4 is that detailed structure schematic diagram is amplified in the portion E of Fig. 2 embodiment.
Specific embodiment
1-4 describes specific embodiment of the utility model with reference to the accompanying drawing.
Embodiment below facilitates a better understanding of the utility model, but does not limit the utility model.Following embodiments,
It is only a part of the embodiment of the utility model, instead of all the embodiments.Component as used in the following examples, such as without spy
Different explanation, is commercially available.
In the description of the present invention, it should be noted that term " first ", " second " are used for description purposes only, and
It cannot be understood as indicating or implying relative importance.Term " center ", "upper", "lower", "left", "right", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of retouching
State the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection, can be mechanical connection；It can be directly connected, can also be indirectly connected by other intermediate members.For this field
Those of ordinary skill for, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Electro spindle is fully cooled sealing structure, has rotor, motor stator 1 and stator water jacket 2, it is characterised in that:
(combining Fig. 3 referring to fig. 2) is the cooling for realizing the bigger area coverage of motor stator: the cylinder that the motor stator 1 has is outer
The external cylindrical surface cutting stator spiral fluid passageway 3 of shell 101；The stator spiral fluid passageway 3 is except motor stator 1 and stator water
It covers except 2 shaft end faying faces, the external cylindrical surface along 1 cylindrical shell 101 of motor stator combines surface helix cutting to the right side from left end
The faying face at end: have when to realize that motor stator and 2 faying face of stator water jacket are tightly connected it is superior and it is sufficient seal and
Dust-proof effect: 3 both ends of the stator spiral fluid passageway outside, i.e. 1 cylindrical shell of motor stator, 101 shaft end and stator water jacket
The faying face of 2 shaft ends pass through respectively the first sealing ring 4011 in the first radial limiting slot 401 and the first radial limiting slot 401 with
And the second sealing in the second radial limiting slot 402 and the second radial limiting slot 402 parallel with the first radial limiting slot 401
Circle 4022 realizes the dual radial seal (combining Fig. 2 referring to fig. 4) of the cooling shaft end of motor stator water；To realize when motor stator
Radial direction seal ring can drain in time after leaking；While solving the problems, such as seepage drainage, increase the sealing of dual-seal circle
Water proof, dust seal effect: the radial limiting slot 401 of the first of the dual radial seal in 1 shaft end of motor stator and the second radial limit
Radial leak-off chute 5 is formed with the two parallel, spaced-apart certain distance between slot 402.It should be noted that the described first radial limit
The radial limiting slot 402 of position slot 401, second, radial leak-off chute 5 are annular groove and are spaced apart from each other the parallel cutting of certain distance.
It is the heat for sufficiently taking away electro spindle in above-described embodiment；That realizes stator and bearing sleeve is fully cooled circulation,
Further: (referring to fig. 2), the stator water jacket 2 was fixed with one with headstock 6, and was connected before electro spindle by headstock 6
Connected bearing sleeve water jacket 8 is sealed outside the bearing sleeve 7 and bearing sleeve 7 at end；For compact structural design: the bed
Head case 6 is an integral structure with electro spindle pedestal.In addition, large area covers while to solve except motor stator outer bearing sleeve
Formula spiral is cooling: the external cylindrical surface cutting bearing sleeve spiral fluid passageway 9 of the bearing sleeve 7；In addition, being by motor stator
It is communicated as one with the cooling structure of bearing sleeve；Advantageously form cooling circuit: the bearing sleeve spiral fluid passageway 9
It is connected with stator spiral fluid passageway 3 by the diversion trench 601 being formed in headstock 6.It further, is densification structure,
And simplify cooling line design, realize the cooling cycle of electro spindle stator and bearing sleeve composition: the stator water jacket 2 is foreign side
The shell of inner circle, and its square casing docks with the matching of 6 shell of headstock and seals fastening and is linked together；Wherein stator water jacket 2
Shell with motor stator 1 it is axial be that symmetry axis is respectively equipped with a cooling water inlet pipe 10 and a cooling water outlet pipe 11；It is described
It cools down water inlet pipe 10 and cooling water outlet pipe 11 and is connected to composition with stator spiral fluid passageway 3 and bearing sleeve spiral fluid passageway 9
The circulation cooling circuit of motor stator 1 and bearing sleeve 7.It further, is guarantee sealing effect: the stator water jacket 2 and bed
The faying face of head case 6, headstock 6 and bearing sleeve 7, bearing sleeve 7 and bearing sleeve water jacket 8 is equipped with sealing ring 4 and passes through
The sealing of sealing ring 4 is connected.
In above-described embodiment, to guarantee sealing effect, while the proximal end after motor stator shaft end cooling circuit leakage is solved
Drainage problem, further: (referring to Fig. 1 combination Fig. 4) described first sealing ring 4011, the second sealing ring 4022 are O-shaped close
Seal；The radial direction leak-off chute 5 is monocycle radial direction leak-off chute；And the row that monocycle radial direction leak-off chute and 2 side wall of stator water jacket are formed with
Water hole 201 interlinks so that leak to be discharged outside electro spindle shell；The drainage hole 201 respectively corresponds each radial leak-off chute 5
System is independently opened in the forward and backward shaft end of stator water jacket 2.
Working principle: arrow direction is that electro spindle cooling follows in the diversion trench 601 that headstock 6 is formed with referring to fig. 2
The liquid of loop back path flows to: where coolant liquid from cooling water inlet pipe 10 enter the stator spiral fluid passageway 3 of motor stator 1 with
The cooling of abundant large area is realized to motor stator 1；Then the diversion trench of the headstock 6 through being fixed with one with stator water jacket 2
The excircle side wall of bearing sleeve 7 where 601 inflow main shaft bearings opens the bearing sleeve spiral fluid passageway 9 of system with main to electricity
The bearing formation of axis main shaft front and back ends installation is fully cooled；Moreover, sufficiently cold for motor stator 1 and 7 inner bearing of bearing sleeve
But the coolant liquid after is finally connected to diversion trench 601, stator spiral fluid passageway 3, bearing sleeve spiral fluid passageway 9 simultaneously
Cooling water outlet pipe 11 flow out and form circulating cooling；Even if the first sealing ring 4011 in the first radial limiting slot 401 occurs
Leakage；Coolant liquid also can be in time through the radial leak-off chute 5 adjacent with the first radial limiting slot 401, through 2 side wall system of stator water jacket
Some drainage holes 201 are smoothly discharged to outside electro spindle shell；And through the second radial limiting slot 402 and the second sealing ring in it
4022 limit barrier effect；Reinforce sealing water proof and dust-obstructing efficiency.
As it can be seen that the more single sealing ring sealing of the structure of the dual radial seal in the utility model motor stator shaft end；The of outside
Two sealing rings have dust-proof and water-stop effect；First sealing ring of inside has water-stop effect；Dual radial seal is compared with axis
The significant effect of a sealing ring sealing is held to be promoted；Leak-off chute collective effect processed is opened between the collaboration dual radial direction seal ring in shaft end；
Even if leaking from the first sealing ring, coolant liquid can successfully drain from leak-off chute to outside electro spindle shell；Sealing is prevented
Dirt function is obviously improved；At the same time, the drainage problem after also efficiently solving coolant liquid leakage；Bearing sleeve and motor are fixed
The design of sub- external cylindrical surface cutting spiral fluid passageway, the relatively axial structure for opening through slot setting processed cooling duct, coolant liquid circulation
Length dramatically increases；Film-cooled heat significantly increases；Cooling effect is excellent；By the way that diversion trench is arranged in headstock；Not only for
Motor stator, and radial spiral cooling is equally realized for bearing sleeve；The more only cooling electric spindle design of motor stator,
The heat of electro spindle high speed rotation generation can sufficiently be taken away；Guarantee its precision；It prolongs its service life；Using a cooling water inlet
Pipe, a cooling water outlet pipe are connected to the screw fluid of motor stator and bearing sleeve；More respectively for motor stator and
The cooling inlet and outlet pipe system arrangement of main shaft bearing sleeve is more simplified；Cooling cycle is more smooth.
Above-described embodiment, the only preferred embodiment of the utility model are not used to limit the utility model practical range,
Therefore all equivalence changes done with content described in the utility model claims, the utility model claims model should all be included in
Within enclosing.
Claims (5)
1. electro spindle is fully cooled sealing structure, there is rotor, motor stator (1) and stator water jacket (2), feature exists
In: the external cylindrical surface cutting stator spiral fluid passageway (3) for the cylindrical shell (101) that the motor stator (1) has；It is described
Stator spiral fluid passageway (3) both ends outside, i.e. motor stator (1) cylindrical shell (101) shaft end and stator water jacket (2) shaft end
Faying face pass through the first sealing ring (4011) in the first radial limiting slot (401) and the first radial direction limiting slot (401) respectively
And in the second radial limiting slot (402) and the second radial limiting slot (402) parallel with first radial limiting slot (401)
Second sealing ring (4022) realizes the dual radial seal of the cooling shaft end of motor stator water；And the dual diameter in motor stator (1) shaft end
To between the first radial limiting slot (401) of sealing and the second radial direction limiting slot (402) with the two parallel, spaced-apart certain distance
It is formed with radial leak-off chute (5).
2. electro spindle according to claim 1 is fully cooled sealing structure, it is characterised in that: the stator water jacket (2) with
Headstock (6) is fixed with one, and passes through the bearing sleeve (7) and bearing sleeve (7) of headstock (6) connected electro spindle front end
The connected bearing sleeve water jacket (8) of outside sealing；The external cylindrical surface cutting bearing sleeve screw fluid of the bearing sleeve (7) is logical
Road (9)；The bearing sleeve spiral fluid passageway (9) is led with stator spiral fluid passageway (3) by what is be formed in headstock (6)
Chute (601) is connected.
3. electro spindle according to claim 2 is fully cooled sealing structure, it is characterised in that: the stator water jacket (2) is
The shell of square-outside and round-inside, and its square casing docks with the matching of headstock (6) shell and seals fastening and is linked together；Wherein stator
The shell of water jacket (2) is axially that symmetry axis is respectively equipped with a cooling water inlet pipe (10) and a cooling goes out with motor stator (1)
Water pipe (11)；The cooling water inlet pipe (10) and cooling water outlet pipe (11) and stator spiral fluid passageway (3) and bearing sleeve spiral shell
The circulation cooling circuit of rotary fluid channel (9) connection composition motor stator (1) and bearing sleeve (7).
4. electro spindle according to claim 2 is fully cooled sealing structure, it is characterised in that: the stator water jacket (2) with
The faying face of headstock (6), headstock (6) and bearing sleeve (7), bearing sleeve (7) and bearing sleeve water jacket (8) is equipped with close
Seal (4) is simultaneously connected by sealing ring (4) sealing.
5. electro spindle according to claim 1 is fully cooled sealing structure, it is characterised in that: first sealing ring
(4011), the second sealing ring (4022) is O-ring seal；The radial direction leak-off chute (5) is monocycle radial direction leak-off chute；And monocycle
The drainage hole (201) that radial leak-off chute and stator water jacket (2) side wall are formed with interlinks so that leak to be discharged outside electro spindle shell；Institute
It states drainage hole (201) and respectively corresponds each radial leak-off chute (5) and be located at stator water jacket (2) forward and backward shaft end and independently open system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821960549.5U CN209130178U (en) | 2018-11-27 | 2018-11-27 | Electro spindle is fully cooled sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821960549.5U CN209130178U (en) | 2018-11-27 | 2018-11-27 | Electro spindle is fully cooled sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209130178U true CN209130178U (en) | 2019-07-19 |
Family
ID=67246774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821960549.5U Expired - Fee Related CN209130178U (en) | 2018-11-27 | 2018-11-27 | Electro spindle is fully cooled sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209130178U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357008A (en) * | 2018-11-27 | 2019-02-19 | 陕西海力特精密机械有限公司 | Electro spindle is fully cooled sealing structure |
| CN116809982A (en) * | 2023-08-29 | 2023-09-29 | 太仓市华盈电子材料有限公司 | Permanent magnet synchronous liquid cooling electric spindle |
-
2018
- 2018-11-27 CN CN201821960549.5U patent/CN209130178U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357008A (en) * | 2018-11-27 | 2019-02-19 | 陕西海力特精密机械有限公司 | Electro spindle is fully cooled sealing structure |
| CN116809982A (en) * | 2023-08-29 | 2023-09-29 | 太仓市华盈电子材料有限公司 | Permanent magnet synchronous liquid cooling electric spindle |
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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: 20190719 |