CN108015303A - A kind of permanent-magnet synchronous milling electro spindle - Google Patents
A kind of permanent-magnet synchronous milling electro spindle Download PDFInfo
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- CN108015303A CN108015303A CN201711331619.0A CN201711331619A CN108015303A CN 108015303 A CN108015303 A CN 108015303A CN 201711331619 A CN201711331619 A CN 201711331619A CN 108015303 A CN108015303 A CN 108015303A
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- electro spindle
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- bearing seat
- magnet synchronous
- bearing
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 36
- 238000003801 milling Methods 0.000 title claims abstract description 35
- 238000001816 cooling Methods 0.000 claims abstract description 88
- 239000002826 coolant Substances 0.000 claims abstract description 36
- 239000000110 cooling liquid Substances 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 13
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 5
- 229910001369 Brass Inorganic materials 0.000 claims description 4
- 239000010951 brass Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 244000079889 Cymbidium pendulum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/70—Stationary or movable members for carrying working-spindles for attachment of tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a kind of permanent-magnet synchronous milling electro spindle, including body, first bearing seat, second bearing seat, stator coolant jacket, shaft core and rotor, formed with first annular cooling duct between first bearing seat lateral surface and body medial surface, formed with the second annular cooling channel between second bearing seat lateral surface and body medial surface, formed with spiral cooling channel between stator coolant jacket lateral surface and body medial surface, body also has coolant inlet and cooling liquid outlet, coolant inlet and first annular cooling duct, second annular cooling channel, spiral cooling channel and cooling liquid outlet are sequentially connected logical；The present invention is cooled down in order according to electro spindle internal calorific power so that cooling to avoid substantial amounts of axial deep hole is bored on main shaft more rationally with that efficiently, and can reduce difficulty of processing and cost.
Description
Technical field
The present invention relates to a kind of electro spindle, more particularly to a kind of permanent-magnet synchronous milling electro spindle.
Background technology
Developing rapidly and being gradually improved with electric drive technology, the mechanical structure of High Speed NC Machine Tools main transmission
Greatly simplified, substantially eliminate belt wheel transmission and gear drive.Machine tool chief axis is directly driven by built-in motor
It is dynamic, so as to be zero the length reduction of Machine Tool Main Drive chain, reduce many unnecessary energy losses.This spindle motor with
The drive mechanism form that machine tool chief axis is combined into one, make spindle unit from the transmission system of lathe and overall knot it is relatively independent go out
Come, therefore main axle unit can be made, be commonly called as electro spindle.
Since the motor of electro spindle is integrated in electro spindle, and rotating speed is very high, and when operating can produce amount of heat, cause electricity
Main shaft temperature rise, makes electro spindle thermal characteristic, dynamic characteristic and machining accuracy be deteriorated, so that the normal work of electro spindle is influenced,
Therefore the temperature of certain controlling measurement electro spindle must be taken, makes its constant in certain value.Electro spindle on the market is present
It is general to be cooled down using deep hole that substantial amounts of axial reciprocating is connected is bored in electro spindle body wall, difficulty of processing greatly, cost
Height, and can also reduce the intensity and quality of electro spindle；In addition, electro spindle on the market is because to metal (upper position and motor
The cooling of stator is sequentially not reasonable, so further causing cooling effect less desirable.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of main shaft of permanent magnetic synchronous motor, according to
The size of electro spindle inner body caloric value is cooled down in order so that cooling more rationally with efficiently, and can be to avoid
Substantial amounts of axial deep hole is bored on main shaft, reduces difficulty of processing and cost.
The purpose of the present invention adopts the following technical scheme that realization：
A kind of permanent-magnet synchronous milling electro spindle, including body, first bearing seat, second bearing seat, stator coolant jacket, shaft core
And rotor, the body are cylindrical shape, the shaft core is located in the body, and the shaft core has for clamping handle of a knife
Handle of a knife hole；The first bearing seat is embedded in the body and is embedded in institute close to handle of a knife hole one end, the second bearing seat
Body is stated away from handle of a knife hole one end；The stator coolant jacket is embedded in the middle part of the body；The shaft core and described first
Bearing block, second bearing seat are rotatably connected；The rotor is fixedly sheathed in the shaft core lateral surface；
Formed with first annular cooling duct between the first bearing seat lateral surface and the body medial surface, described
Formed with the second annular cooling channel, the stator coolant jacket lateral surface between two bearing bracket lateral surface and the body medial surface
Also there is coolant inlet and coolant to go out formed with spiral cooling channel, the body between the body medial surface
Mouthful, the coolant inlet is connected with described first annular cooling duct one end, the first annular cooling duct other end
It is connected with described second annular cooling channel one end, the second annular cooling channel other end and the spiral cooling channel
One end is connected, and the spiral cooling channel other end is connected with the cooling liquid outlet.
Further, the first annular cooling duct is the first annular groove being had by the first bearing seat lateral surface
It is enclosed with the medial surface of the body, second annular cooling channel is had by the second bearing seat lateral surface
Second annular groove is enclosed with the body medial surface, and the spiral cooling channel is by mask on the outside of the stator coolant jacket
Some helicla flutes are enclosed with the body medial surface.
Further, the first annular groove and the body medial surface junction are provided with the first sealing ring, and described the
Second ring groove both ends are provided with the second sealing ring, the helicla flute and the body medial surface with the body medial surface junction
Junction is provided with the 3rd sealing ring.
Further, the permanent-magnet synchronous milling electro spindle further includes second bearing and limit assembly, second axis
Hold and be slidably fitted in the second bearing seat, the limit assembly is used for carrying out axial limiting to the second bearing, described
Shaft core is rotatably connected by the second bearing and the second bearing seat.
Further, the limit assembly includes preloading spring seat and preloading spring, described preloading spring seat one end with
The second bearing connection, the preloading spring seat other end are equipped with opening, and the opening is described towards handle of a knife hole one end
Preloading spring is placed in the opening, and height of the preloading spring under non-telescoping state is more than the depth of the opening.
Further, the permanent-magnet synchronous milling electro spindle further includes sliding sleeve, the sliding sleeve with the second bearing seat
Side is fixedly connected, and the second bearing is slidably fitted in the sliding sleeve.
Further, the sliding sleeve is made of brass material.
Further, the rotor is made of some arc convex continuously to connect around the shaft core, the adjacent arc
The rotor is divided into the region of some deciles by raised intersection point and the line of the rotor axis, is set in each region
There are two groove bodies along the rotor axial direction, two groove bodies are in V-type of the opening towards the rotor axis.
Further, the arc convex is overrided to form by some silicon steel sheets along the rotor axial direction, some described
Silicon steel sheet is riveted tightly by rivet.
Further, the two ends of rotor is separately provided for compressing the end ring of the silicon steel sheet, is covered in the shaft core
The collar for positioning the rotor is connected to, the end ring leaves gap with the collar.
Compared with prior art, the beneficial effects of the present invention are：By being sequentially connected logical first annular cooling duct,
Second ring cooling duct and spiral cooling channel in order can cool down clutch shaft bearing, second bearing and stator,
Because the normal working temperature of electro spindle stator bearing opposite with caloric value is big, it is allowed to maximum operating temperature also relatively
Height, so cooling can allow coolant greatly to be utilized in order, avoids coolant from being lost after high-temperature position is cooled down
Cooling capacity is gone；And ring-type and spiral helicine cooling duct can be substantial amounts of axial to avoid being bored in electro spindle body wall
On the one hand deep hole, so ensure that the intensity and quality of electro spindle, on the other hand there is the heat exchange of bigger relative to axial deep hole
Area, can preferably be cooled down.
Brief description of the drawings
Fig. 1 is permanent-magnet synchronous milling electro spindle axial section of the present invention；
Fig. 2 is the first cooling duct of permanent-magnet synchronous milling electro spindle of the present invention, the second cooling duct, spiral cooling channel office
Portion's enlarged drawing；
Fig. 3 is permanent-magnet synchronous milling electro spindle coolant inlet of the present invention and cooling liquid outlet schematic diagram；
Fig. 4 is permanent-magnet synchronous milling electro spindle preloading spring seat partial schematic diagram of the present invention；
Fig. 5 is permanent-magnet synchronous milling electro spindle sliding sleeve schematic diagram of the present invention；
Fig. 6 is permanent-magnet synchronous milling electro spindle rotor axial profile of the present invention；
Fig. 7 is permanent-magnet synchronous milling electro spindle rotor sectional view of the present invention；
Fig. 8 measures for permanent-magnet synchronous milling electro spindle rotor of the present invention oblique two to be intended to.
In figure：1st, body；2nd, first bearing seat；21st, the first sealing ring；22nd, clutch shaft bearing；3rd, second bearing seat；31st,
Two sealing rings；32nd, second bearing；4th, stator coolant jacket；41st, the 3rd sealing ring；5th, first annular cooling duct；51st, the first ring
Shape cooling duct liquid feeding end；52nd, first annular cooling duct outlet end；6th, the second annular cooling channel；61st, the second annular cooling
Passage liquid feeding end；62nd, the second annular cooling channel outlet end；7th, spiral cooling channel；71st, spiral cooling channel liquid feeding end；72、
Spiral cooling channel outlet end；8th, preloading spring seat；9th, preloading spring；100th, sliding sleeve；110th, handle of a knife hole；120th, shaft core；121、
Collar；130th, push-pull rod；140th, knife striking cylinder；150th, coolant inlet；160th, cooling liquid outlet；170th, rotor；171st, arc is convex
Rise；172nd, groove body；173rd, rivet；174th, end ring.
Embodiment
In the following, with reference to attached drawing and embodiment, the present invention is described further, it is necessary to which explanation is, not
Under the premise of afoul, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
Permanent-magnet synchronous milling electro spindle as shown in Figs. 1-3, including it is body 1, first bearing seat 2, second bearing seat 3, fixed
Sub- coolant jacket 4, shaft core 120 and rotor 170, body 1 are cylindrical shape, and shaft core 120 is located in body 1, and shaft core 120 has use
In the handle of a knife hole 110 of clamping handle of a knife；It is embedded close to 110 one end of handle of a knife hole, second bearing seat 3 that first bearing seat 2 is embedded in body 1
In body 1 away from 110 one end of handle of a knife hole；Stator coolant jacket 4 is embedded in the middle part of body 1；The shaft core 120 and first bearing seat 2,
Second bearing seat 3 is rotatably connected；Rotor 170 is fixedly sheathed in 120 lateral surface of shaft core；2 lateral surface of first bearing seat and body 1
Formed with first annular cooling duct 5 between medial surface, formed between 1 medial surface of 3 lateral surface of second bearing seat and body
Second ring cooling duct 6, formed with spiral cooling channel 7 between 1 medial surface of 4 lateral surface of stator coolant jacket and body, body 1 is also
With coolant inlet 150 and cooling liquid outlet 160, coolant inlet 150 is connected with first annular 5 one end of cooling duct
Logical, first annular 5 other end of cooling duct is connected with 6 one end of the second annular cooling channel, and the second annular cooling channel 6 is another
End is connected with described 7 one end of spiral cooling channel, and 7 other end of spiral cooling channel is connected with cooling liquid outlet 160.
By being sequentially connected logical first annular cooling duct 5, the second annular cooling channel 6 and spiral cooling channel 7,
Clutch shaft bearing 22, second bearing 32 and stator can be cooled down in order because electro spindle work when, stator
Normal working temperature bearing opposite with caloric value it is big, it is allowed to maximum operating temperature it is also of a relatively high, so cold in order
But coolant can be allowed greatly to be utilized, avoids coolant from losing cooling capacity after formerly cooling down high-temperature position；
And ring-type and spiral helicine cooling duct can to avoid boring substantial amounts of axial deep hole in 1 wall of electro spindle body, such one
Aspect ensure that the intensity and quality of electro spindle, on the other hand contrast axial deep hole, and ring-type and helical form have the heat exchange of bigger
Area, so as to preferably be cooled down.
The process that this permanent-magnet synchronous milling electro spindle specifically cools down is：Coolant is first entered from coolant inlet 150
First annular cooling duct liquid feeding end 51, then goes out from first annular cooling duct liquid feeding end 51 into first annular cooling duct
Liquid end 52, in this process, is cooled down using first annular cooling duct 5 clutch shaft bearing 22 larger to caloric value；
Following coolant enters the second annular cooling channel liquid feeding end 61 from first annular cooling duct outlet end 52, so
The second annular cooling channel outlet end 62 is entered from the second annular cooling channel liquid feeding end 61 afterwards, in this process, is utilized
Second annular cooling channel 6 cools down the relatively small second bearing of caloric value 32；
Following coolant enters spiral cooling channel liquid feeding end 71, Ran Houcong from the second annular cooling channel outlet end 62
Spiral cooling channel liquid feeding end 71 enters spiral cooling channel outlet end 72, utilizes spiral cooling channel in this process
The stator of 7 pairs of caloric value maximums cools down, and last coolant is discharged from cooling liquid outlet 160, and the cooling for starting a new round follows
Ring.
As specifically embodiment, first annular cooling duct 5 is the first ring being had by 2 lateral surface of first bearing seat
Shape groove and the medial surface of body 1 are enclosed, and the second annular cooling channel 6 is second had by 3 lateral surface of second bearing seat
Annular groove is enclosed with 1 medial surface of body, spiral cooling channel 7 be the helicla flute that is had by 4 lateral surface of stator coolant jacket with
1 medial surface of body is enclosed.Since the first cooling duct, the second cooling duct and spiral cooling channel 7 are all disposed within machine
Inside body 1, the lateral surface of lateral surface, second bearing seat 3 to first bearing seat 2 and the lateral surface of stator coolant jacket 4 carry out
Fluting, by being compared in the form of outer groove at side surface to form cooling duct in interior groove at side surface, it is clear that processing can be allowed simpler
It is single.
Specifically, first annular groove is provided with the first sealing ring 21, the second annular groove both ends with 1 medial surface junction of body
1 medial surface junction of body is provided with the second sealing ring 31, helicla flute is provided with the 3rd sealing with 1 medial surface junction of body
Circle 41；The leakage of coolant can be prevented by the effect of sealing ring, ensure that the reliability of permanent-magnet synchronous milling electro spindle.
Permanent-magnet synchronous milling electro spindle as shown in Figure 4 further includes second bearing 32 and limit assembly, second bearing 32
It is slidably fitted in second bearing seat 3, limit assembly is used for carrying out axial limiting to second bearing 32, and shaft core 120 passes through second
Bearing 32 is rotatably connected with second bearing seat 3.Specifically, limit assembly includes preloading spring seat 8 and preloading spring 9, in advance
Tight 8 one end of spring base is connected with second bearing 32, and 8 other end of preloading spring seat is equipped with opening, is open towards handle of a knife hole 110 1
End, preloading spring 9 are placed in opening, and height of the preloading spring 9 under non-telescoping state is more than the depth of opening.
Because in traditional electro spindle, generally can with more screws come to unloading knife when shaft core 120 axial displacement carry out
It is spacing, when preventing that 120 displacement of shaft core is excessive and damages bearing, but the axial displacement of shaft core 120 adjusted by screw, it is difficult to essence
True control axial displacement, and be difficult to second bearing 32 being adjusted to end face with more screws, cause second bearing 32 each
A direction unbalance stress, if things go on like this, can damage second bearing 32.So the present invention uses preloading spring seat 8 and pretension bullet
Spring 9 realizes being precisely controlled for 120 displacement of shaft core, and can guarantee that 32 uniform force of second bearing.Specifically principle is：Shaft core
120 are fixedly connected with 32 inner ring of second bearing, and push-pull rod 130 is slidably connected in shaft core 120, and push-pull rod 130 is by forging a knife
Cylinder 140 is driven, and when knife striking cylinder 140 works, push-pull rod 130 is moved towards 110 direction of handle of a knife hole, due to frictional force
Effect can drive shaft core 120 to be moved towards 110 direction of handle of a knife hole, and shaft core 120 is fixedly connected with 32 inner ring of second bearing, so the
Two bearings 32 can also be moved towards 110 direction of handle of a knife hole, and 8 one end of preloading spring seat is connected with second bearing 32, preloading spring seat 8
End face can guarantee that preloading spring seat 8 is uniformly contacted with clutch shaft bearing 22, so can guarantee that 32 uniform force of second bearing；It is and pre-
Height of the tight spring 9 under non-telescoping state is more than the depth of opening, then is moved in second bearing 32 towards 110 direction of handle of a knife hole
When, spring can be compressed.Then when spring is pressed completely into opening, preloading spring seat 8 is just contacted with second bearing seat 3,
And the axial displacement of preloading spring seat 8 is limited, so as to limit the axial displacement of shaft core 120, then knife striking cylinder 140 continues to press on
Push-pull rod 130 is moved to 110 direction of handle of a knife hole, is realized and is unloaded knife to permanent-magnet synchronous milling electro spindle, in addition, preloading spring 9 is non-
The value that height under retracted position is more than opening depth can be set according to actual conditions, be moved with the cutter spacing of unloading for reaching optimal
Amount.
Permanent-magnet synchronous milling electro spindle as shown in Figure 5, further includes sliding sleeve 100, sliding sleeve 100 and the inner side of second bearing seat 3
Face is fixedly connected, and second bearing 32 is slidably fitted in sliding sleeve 100；Sliding sleeve 100 can allow second bearing 32 and clutch shaft bearing 22
Higher concentricity is kept, so as to avoid because shaft core 120 caused by concentricity is bad is beated, sliding sleeve 100 selects brass material,
Because the thermal coefficient of expansion of brass is higher than other materials such as stainless steels, it is not easy to loosen when heated, so will not be to second bearing
32 volume in second bearing seat 3 slides and causes clamping stagnation, ensure that equipment reliability of operation.
Permanent-magnet synchronous milling electro spindle rotor 170 as shown in figs 6-8, if rotor 170 around shaft core 120 by continuously connecting
Dry arc convex 171 is formed, and rotor 170 is divided into some by the intersection point of adjacent arc convex 171 with the line in 170 axle center of rotor
The region of decile, two groove bodies 172 along 170 axial direction of rotor is both provided with each region, two groove bodies 172 are in opening
Towards the V-type in 170 axle center of rotor；It is used for loading permanent magnet in groove body 172, because in sine wave permanent magnet synchronous motor, by
The air gap flux density that permanent magnet produces not is to be distributed in sine wave, and the rotor 170 being made up of arc convex 171, can optimize
The sine of permanent magnetic field, reduces Cymbidium aloifolium, so as to reduce torque pulsation, improves the utilization rate of permanent-magnet material.
Specifically, arc convex 171 is overrided to form by some silicon steel sheets along 170 axial direction of rotor, and some silicon steel sheets lead to
Rivet 173 is crossed to rivet tightly；Silicon steel sheet can cause copper loss to decline, efficiency improves and temperature rise reduces.170 both ends of rotor are respectively arranged with
For compressing the end ring 174 of silicon steel sheet, the collar 121 of positioning rotor 170, end ring 174 and collar 121 are socketed with shaft core 120
Leave gap；170 both ends end ring 174 of rotor compresses, alice when can prevent the silicon steel sheet of end face from riveting tightly, and ensures that two hold level with both hands
It is whole；End ring 174 leaves gap with collar 121, it is ensured that 170 thermal stretching of rotor has sufficient space when the motor feels hot so that forever
The reliability enhancing of magnetic-synchro milling electro spindle.
The above embodiment is only the preferred embodiment of the present invention, it is impossible to the scope of protection of the invention is limited with this,
The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed scope.
Claims (10)
1. a kind of permanent-magnet synchronous milling electro spindle, including body, first bearing seat, second bearing seat, stator coolant jacket, shaft core with
And rotor, the body are cylindrical shape, the shaft core is located in the body, and the shaft core has the knife for being used for clamping handle of a knife
Delthyrium；The first bearing seat is embedded in the body close to handle of a knife hole one end, and the second bearing seat is embedded in described
Body is away from handle of a knife hole one end；The stator coolant jacket is embedded in the middle part of the body；The shaft core and the first axle
Bearing, second bearing seat are rotatably connected；The rotor is fixedly sheathed in the shaft core lateral surface；
It is characterized in that：It is logical formed with first annular cooling between the first bearing seat lateral surface and the body medial surface
Road, it is cold formed with the second annular cooling channel, the stator between the second bearing seat lateral surface and the body medial surface
But cover formed with spiral cooling channel between lateral surface and the body medial surface, the body also have coolant inlet and
Cooling liquid outlet, the coolant inlet are connected with described first annular cooling duct one end, and the first annular cooling is logical
The road other end is connected with described second annular cooling channel one end, the second annular cooling channel other end with it is described spiral
Cooling duct one end is connected, and the spiral cooling channel other end is connected with the cooling liquid outlet.
2. permanent-magnet synchronous milling electro spindle as claimed in claim 1, it is characterised in that：The first annular cooling duct be by
The medial surface of first annular groove and the body that the first bearing seat lateral surface has is enclosed, and second annular is cold
But passage is enclosed by the second annular groove that the second bearing seat lateral surface has and the body medial surface, the spiral shell
Revolving cooling duct is enclosed by the helicla flute that the stator coolant jacket lateral surface has and the body medial surface.
3. permanent-magnet synchronous milling electro spindle as claimed in claim 2, it is characterised in that：The first annular groove and the body
Medial surface junction is provided with the first sealing ring, and the second annular groove both ends and the body medial surface junction are provided with the
Two sealing rings, the helicla flute are provided with the 3rd sealing ring with the body medial surface junction.
4. permanent-magnet synchronous milling electro spindle as claimed in claim 1, it is characterised in that：The permanent-magnet synchronous milling electro spindle is also
Including second bearing and limit assembly, the second bearing is slidably fitted in the second bearing seat, the limit assembly
For carrying out axial limiting to the second bearing, the shaft core is rotatable by the second bearing and the second bearing seat
Connection.
5. permanent-magnet synchronous milling electro spindle as claimed in claim 4, it is characterised in that：The limit assembly includes preloading spring
Seat and preloading spring, described preloading spring seat one end are connected with the second bearing, and the preloading spring seat other end is equipped with
Opening, the opening are placed in the opening towards handle of a knife hole one end, the preloading spring, and the preloading spring is stretched non-
Height under contracting state is more than the depth of the opening.
6. permanent-magnet synchronous milling electro spindle as claimed in claim 4, it is characterised in that：The permanent-magnet synchronous milling electro spindle is also
Including sliding sleeve, the sliding sleeve is fixedly connected with the second bearing seat medial surface, and the second bearing is slidably fitted in the cunning
In set.
7. permanent-magnet synchronous milling electro spindle as claimed in claim 6, it is characterised in that：The sliding sleeve is made of brass material.
8. permanent-magnet synchronous milling electro spindle as claimed in claim 1, it is characterised in that：The rotor is by continuous around the shaft core
Some arc convex to connect are formed, and the intersection point of the adjacent arc convex draws the rotor with the line of the rotor axis
It is divided into the region of some deciles, two groove bodies along the rotor axial direction, two grooves is both provided with each region
Body is in V-type of the opening towards the rotor axis.
9. permanent-magnet synchronous milling electro spindle as claimed in claim 8, it is characterised in that：The arc convex is by some silicon steel sheets
It is overrided to form along the rotor axial direction, some silicon steel sheets are riveted tightly by rivet.
10. permanent-magnet synchronous milling electro spindle as claimed in claim 9, it is characterised in that：The two ends of rotor is respectively arranged with
For compressing the end ring of the silicon steel sheet, the collar for positioning the rotor, the end ring and the axis are socketed with the shaft core
Ring leaves gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711331619.0A CN108015303A (en) | 2017-12-13 | 2017-12-13 | A kind of permanent-magnet synchronous milling electro spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711331619.0A CN108015303A (en) | 2017-12-13 | 2017-12-13 | A kind of permanent-magnet synchronous milling electro spindle |
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| Publication Number | Publication Date |
|---|---|
| CN108015303A true CN108015303A (en) | 2018-05-11 |
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|---|---|---|---|
| CN201711331619.0A Pending CN108015303A (en) | 2017-12-13 | 2017-12-13 | A kind of permanent-magnet synchronous milling electro spindle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108927534A (en) * | 2018-07-16 | 2018-12-04 | 深圳市爱贝科精密机械有限公司 | A kind of permanent magnet synchronization motor spindle device |
| CN109590488A (en) * | 2018-12-05 | 2019-04-09 | 珠海格力电器股份有限公司 | Shaft sleeve, electric spindle and machine tool |
| CN110524010A (en) * | 2019-10-09 | 2019-12-03 | 东莞市显隆电机有限公司 | A kind of Large-power High-Speed ball electric spindle of high lateral force |
| US20220176581A1 (en) * | 2019-01-30 | 2022-06-09 | Christian Häupl | Dual-spindle circular saw for sawing wood |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203655909U (en) * | 2013-11-20 | 2014-06-18 | 广州市昊志机电股份有限公司 | Upper bearing seat component of high speed power main shaft |
| CN203778782U (en) * | 2013-12-31 | 2014-08-20 | 广州市昊志机电股份有限公司 | Motorized spindle for deep holes |
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| CN109590488A (en) * | 2018-12-05 | 2019-04-09 | 珠海格力电器股份有限公司 | Shaft sleeve, electric spindle and machine tool |
| US20220176581A1 (en) * | 2019-01-30 | 2022-06-09 | Christian Häupl | Dual-spindle circular saw for sawing wood |
| CN110524010A (en) * | 2019-10-09 | 2019-12-03 | 东莞市显隆电机有限公司 | A kind of Large-power High-Speed ball electric spindle of high lateral force |
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