CN207103866U - A kind of low-speed big invariable power electro spindle - Google Patents
A kind of low-speed big invariable power electro spindle Download PDFInfo
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- CN207103866U CN207103866U CN201721066711.4U CN201721066711U CN207103866U CN 207103866 U CN207103866 U CN 207103866U CN 201721066711 U CN201721066711 U CN 201721066711U CN 207103866 U CN207103866 U CN 207103866U
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- bearing
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- electro spindle
- invariable power
- speed big
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Abstract
The utility model discloses a kind of low-speed big invariable power electro spindle, including：ER nuts, ER collet chucks, the first closure, dust cover, the first protecgulum, the second protecgulum, the second closure, tapered sleeve, preceding spacer assemblies, end cap, armature spindle, casing body, stator, rotor, rear spacer assemblies, rear defence shield, gland, wire outlet seat and the preceding end bearing and rear end bearing that are divided into rotating shaft terminal.Main shaft carries out contactless hermetic seal and labyrinth sealing using compressed air and is combined, and better seal effect is obtained with this.Main axle structure simple and compact but powerful, not only than the conventional electro spindle small volume of equal-wattage, and there is the characteristics of low speed high torque, high speed, the Precision Machining of low speed of various materials are can be widely applied for, is especially suitable for machining center, accurate carving milling, bores the accessory processing for attacking dual-purpose machine.
Description
Technical field
The utility model is specifically related to a kind of low-speed big invariable power electro spindle；Belong to electromechanical engineering technical field.
Background technology
Electro spindle is the combination product of motor and main shaft, and its is compact-sized, and installation is simple, easy to use, with change frequency modulation
The increasingly development of fast technology, electro spindle find broad application in engraving carves milling industry.High-speed electric main shaft compares in the market
It is common, but can run at high speed, and can low-speed running and have that the electro spindle of big torque output is seldom, a kind of low-speed big perseverance work(
Rate electro spindle is also urgently required by market.
Utility model content
For above-mentioned deficiency of the prior art, the utility model provides one kind can low-speed big processing, and can
High-speed cutting, and the low speed high torque invariable power electro spindle of stable performance, bearing service life length.
To achieve the above object, the utility model employs following technical scheme：A kind of low-speed big invariable power electricity is main
Axle, including casing body, the machine enclosure interior are provided with stator, rotor, armature spindle, pretension component and are divided into armature spindle both ends
Fore bearing and rear bearing, in addition to be fixed on the wire outlet seat of machine housing rear end；It is connected to the end cap of machine housing forward end, the end
Lid front end is provided with dust-proof anti-feed liquor sealing mechanism, the dust-proof anti-feed liquor sealing mechanism include that the end cap front end is sticked the
Two protecgulums, the first protecgulum of the second protecgulum lower end connection, the dust cover of the second protecgulum front end connection；It is installed on front axle
Second closure at brought forward end and the first closure being connected with its front end；Before first closure, the first protecgulum, second
Lid, the second closure form labyrinth sealing gas circuit, set sealing gland entrance on end cap, compressed air connects described close through end cap
Gas circuit and straight-through dust cover are sealed, pressure-fired is formed in dust cover；The fore bearing, rear bearing are assembled to Parallel Axis using two
Hold.
Further, the fore bearing, the bearing pairing form of rear bearing are set to DT combining forms.
Further, preceding spacer assemblies are provided between two pairing fore bearings, preceding spacer assemblies by preceding outer ring spacer and it is preceding it is interior every
Circle composition, the thickness of the preceding spacer assemblies is 10mm.
Further, be provided with rear spacer assemblies after two pairings between bearing, rear spacer assemblies by front and rear spacer ring with it is rear it is interior every
Circle composition, the thickness of the rear spacer assemblies is 10mm.
Further, tapered sleeve is installed between the dust cover and end cap.
Further, the rotor axial cone hole is internally connected with the ER collet chucks of fixed cutting tool and connected ER spiral shells
Cap.
Further, the distance of controlling between the fore bearing and rear bearing is 260mm.
Further, the wire outlet seat is provided with coolant inlet, cooling liquid outlet, shape in wire outlet seat and the casing body
Cheng Youyu coolant inlets, the cooling passage of cooling liquid outlet connection；The coolant inlet, cooling liquid outlet, coolant
Passage forms double helix passage in body.
Further, the coolant inlet and cooling liquid outlet are symmetrically distributed on the wire outlet seat.
Further, the rotor shaft rear end is provided with gland, the positioning and locking for rear bearing.
Further, the machine housing rear end is provided with rear defence shield, for bearing after protection.
Beneficial effect：1. being combined using contactless hermetic seal and labyrinth sealing, electro spindle can run at high speed
It is lower to obtain optimal sealing effectiveness, effective dust-proof anti-feed liquor.
2. main shaft bearing DT is combined, and applies certain confining force by pre-tightening apparatus rear end bearing, the dynamic of main shaft is improved
State and static accuracy, improve the service life of electro spindle.
3. employing double helix passage in casing body, cooling effect is more preferable, and coolant passes through the cooling that is formed on wire outlet seat
Liquid entrance enters through casing body, end cap, stator, fore bearing, rear bearing is cooled down, finally the cooling liquid outlet from wire outlet seat
Discharge.
4. electro spindle compact overall structure, reliable, convenient operation and control, main shaft temperature rise is low, low speed torque is big.
5. greatly improving the rigidity of main shaft, the axial cutting force of bearing is also increased exponentially.
Brief description of the drawings
Fig. 1 is a kind of section of structure of low-speed big invariable power electro spindle embodiment of the utility model；
Fig. 2 is the side structure schematic diagram of illustrated embodiment；
Fig. 3 is the appearance schematic diagram of illustrated embodiment；
Fig. 4 is the dust-proof anti-feed liquor sealing mechanism schematic diagram of illustrated embodiment.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating this
The technical scheme of utility model, and the scope of protection of the utility model can not be limited with this.
As shown in Figure 1 and Figure 2, a kind of low-speed big invariable power electro spindle, including casing body 14, in the casing body 14
Portion is provided with stator 15, rotor 16, armature spindle 13, pretension component 17 and the fore bearing 11 and rear axle that are divided into the both ends of armature spindle 13
19 are held, the fore bearing 11, rear bearing 19 are assembled to bearing in parallel, the fore bearing 11, the bearing of rear bearing 19 using two
Matching form is set to DT combining forms；Be provided with preceding spacer assemblies 10 between two pairing fore bearings, preceding spacer assemblies 10 by it is preceding outside every
Circle forms with preceding cone spacer, is provided with rear spacer assemblies 18 after two pairings between bearing 19, rear spacer assemblies 18 by front and rear spacer ring and
Cone spacer forms afterwards；Stator 15 is integrated in the inside of casing body 14 with armature spindle 13, and the rear end of armature spindle 13 is provided with gland
21, fastened by lock screw, for the positioning and locking of rear end bearing, the rotor 16 is cast-in aluminum squirrel cage formula, and rotor is solid
Loaded on armature spindle, the high frequency three phase mains of external drive mechanism output is powered by built-in motor lead (U, V, W) for Dingan County
To electro spindle, drive shaft runs at high speed；By the optimization design to main axle structure in the present embodiment, it is big that main shaft has reached low speed
Moment of torsion.
The rear end of casing body described in the present embodiment 14 is provided with rear defence shield 20 and wire outlet seat 22, the dust cover 5 and end
Tapered sleeve 9 is installed between lid 12；The taper hole of armature spindle 13 is internally connected with the ER collet chucks 3 of fixed cutting tool 1 and is connected thereto
ER nuts 2.
The thickness of preceding spacer assemblies 10 described in the present embodiment is 10mm；The thickness of spacer assemblies 18 is 10mm after described.Institute
The distance of controlling stated between fore bearing 11 and rear bearing 19 is 260mm, drastically increases the rigidity of main shaft, the axial direction of bearing is cut
Power is cut also to be increased exponentially.
As shown in figure 4, being connected to the end cap 12 of the front end of casing body 14 in the present embodiment, the front end of end cap 12 is provided with anti-
The anti-feed liquor sealing mechanism of dirt, the dust-proof anti-feed liquor sealing mechanism include the second protecgulum 7 for being sticked of the end cap front end, and described the
First protecgulum 6 of the lower end of two protecgulum 7 connection, the dust cover 5 of the front end of the second protecgulum 7 connection；It is installed on the front end of fore bearing 11
The second closure 8 and the first closure 4 for being connected with its front end；First closure 4, the first protecgulum 6, the second protecgulum
7th, the second closure 8 forms labyrinth sealing gas circuit, and it sets sealing gland entrance on end cap 12, is formed in dust cover 5 certain
Pressure-fired air, pressure-fired air forms certain air film around main-axis end, avoids the moisture in the external world, impurity enters
Main shaft and the effect for reaching non-contacting seal, because the present embodiment uses the labyrinth sealing of multilayer, add the second sealing
Lid, the first protecgulum, while the labyrinth clearance size between closure, protecgulum is reduced, it is more preferable to obtain sealing effectiveness.
As shown in figure 3, wire outlet seat described in the present embodiment is provided with coolant inlet WI, cooling liquid outlet WO, the outlet
Formed with the cooling passage connected with coolant inlet WI, cooling liquid outlet WO in seat and casing body；The coolant inlet
WI, cooling liquid outlet WO, cooling passage form double helix passage in body.The coolant inlet WI and cooling liquid outlet
WO is symmetrically distributed on the wire outlet seat.
The present embodiment electro spindle compact overall structure, reliable, convenient operation and control, main shaft temperature rise is low, low speed torque is big, main
Axle bearing is combined using DT, improves the precision of main shaft, improves the service life of electro spindle
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and deformation can also be made, these change
Enter and deform and also should be regarded as the scope of protection of the utility model.
Claims (10)
1. a kind of low-speed big invariable power electro spindle, including casing body, the machine enclosure interior is provided with stator, rotor, rotor
Axle, pretension component and it is divided into the fore bearing at armature spindle both ends and rear bearing, it is characterised in that also include being fixed on casing body
The wire outlet seat of rear end；The end cap of machine housing forward end is connected to, the end cap front end is provided with dust-proof anti-feed liquor sealing mechanism, described
Dust-proof anti-feed liquor sealing mechanism includes the second protecgulum for being sticked of the end cap front end, the second protecgulum lower end connection first before
Lid, the dust cover of the second protecgulum front end connection；It is installed on the second closure of fore bearing front end and is connected with its front end
The first closure；First closure, the first protecgulum, the second protecgulum, the second closure form labyrinth sealing gas circuit, pressure
Contracting air forms pressure-fired through the end cap connection sealing gas circuit and straight-through dust cover in dust cover；The fore bearing is with after
Bearing is assembled to bearing in parallel using two.
A kind of 2. low-speed big invariable power electro spindle according to claim 1, it is characterised in that the fore bearing, after
The bearing pairing form of bearing is set to DT combining forms.
3. a kind of low-speed big invariable power electro spindle according to claim 1, it is characterised in that between the fore bearing
Provided with preceding spacer assemblies, preceding spacer assemblies are made up of preceding outer ring spacer and preceding cone spacer, and the thickness of the preceding spacer assemblies is 10mm.
4. a kind of low-speed big invariable power electro spindle according to claim 1, it is characterised in that after described between bearing
Provided with rear spacer assemblies, rear spacer assemblies are made up of front and rear spacer ring and rear cone spacer, and the thickness of the rear spacer assemblies is 10mm.
A kind of 5. low-speed big invariable power electro spindle according to claim 1, it is characterised in that the rotor axial cone hole
It is internally connected with the ER collet chucks of fixed cutting tool and connected ER nuts.
6. a kind of low-speed big invariable power electro spindle according to claim 1, it is characterised in that the fore bearing is with after
Distance of controlling between bearing is 260mm.
7. a kind of low-speed big invariable power electro spindle according to claim 1, it is characterised in that set on the wire outlet seat
Have coolant inlet, a cooling liquid outlet, in wire outlet seat and the casing body formed with coolant inlet, cooling liquid outlet company
Logical cooling passage；The coolant inlet, cooling liquid outlet, cooling passage form double helix passage in body.
A kind of 8. low-speed big invariable power electro spindle according to claim 7, it is characterised in that the coolant inlet
It is symmetrically distributed in cooling liquid outlet on the wire outlet seat.
A kind of 9. low-speed big invariable power electro spindle according to claim 1, it is characterised in that the rotor shaft rear end
Gland is installed, the positioning and locking for rear bearing.
10. a kind of low-speed big invariable power electro spindle according to claim 1, it is characterised in that after the casing body
End is provided with rear defence shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721066711.4U CN207103866U (en) | 2017-08-24 | 2017-08-24 | A kind of low-speed big invariable power electro spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721066711.4U CN207103866U (en) | 2017-08-24 | 2017-08-24 | A kind of low-speed big invariable power electro spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207103866U true CN207103866U (en) | 2018-03-16 |
Family
ID=61576739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721066711.4U Active CN207103866U (en) | 2017-08-24 | 2017-08-24 | A kind of low-speed big invariable power electro spindle |
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| Country | Link |
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| CN (1) | CN207103866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146383A (en) * | 2021-03-25 | 2021-07-23 | 无锡高乐机械设备有限公司 | Spindle for permanent magnet electric grinding wheel of coreless grinding machine |
-
2017
- 2017-08-24 CN CN201721066711.4U patent/CN207103866U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113146383A (en) * | 2021-03-25 | 2021-07-23 | 无锡高乐机械设备有限公司 | Spindle for permanent magnet electric grinding wheel of coreless grinding machine |
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