CN102039426B - Main shaft device capable of enhancing cooling effect - Google Patents
Main shaft device capable of enhancing cooling effect Download PDFInfo
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- CN102039426B CN102039426B CN200910204176A CN200910204176A CN102039426B CN 102039426 B CN102039426 B CN 102039426B CN 200910204176 A CN200910204176 A CN 200910204176A CN 200910204176 A CN200910204176 A CN 200910204176A CN 102039426 B CN102039426 B CN 102039426B
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- bearing
- axle unit
- coolant jacket
- main shaft
- shaft device
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Abstract
The invention discloses a main shaft device capable of enhancing cooling effect, which comprises a mandrel unit, a shell sheathed outside the mandrel unit, an outside cooling jacket sheathed between the mandrel unit and the shell, a motor, a front bearing, a rear bearing and a thrusting bearing, wherein the motor, the front bearing, the rear bearing and the thrusting bearing are installed between the mandrel unit and the outside cooling jacket; the outside cooling jacket is provided with an outside cooling channel; and the motor, the front bearing, the rear bearing and the thrusting bearing are cooled by means of the arrangement of the outside cooling channel so as to achieve the optimal cooling effect.
Description
Technical field
The present invention relates to a kind of processing equipment, particularly relate to a kind of main shaft device that can improve cooling effect.
Background technology
As shown in Figure 1; Existing a kind of main shaft device comprises that an axle unit 1, one are set in motor 4, one that coolant jacket 3, one that the outside housing in this axle unit 12, one be set in this axle unit 1 and 2 of this housings be installed in 3 of this axle unit 1 and this coolant jackets and are arranged on these motor 4 front sides and are installed in this axle unit 1 and the preceding air bearing of 3 of this coolant jackets 5, one are arranged on these motor 4 rear sides and are installed in this axle unit 1 and back air bearing 6 and a thrust air bearing 7 that is arranged on this back air bearing 6 and these coolant jacket 3 outsides of 3 of this coolant jackets.This coolant jacket 3 is provided with a coolant flow channel 301; When starting this motor 4; And when driving this axle unit 1 and producing and run up (can up to 300000rpm); Cooling fluid is imported this coolant flow channel 301, and this preceding air bearing 5, back air bearing 6 are because the heat energy that heat energy that this axle unit 1 high speed rotary grinding air produces and motor 4 coil magnetizations are produced is cooled.But because this thrust air bearing 7 is arranged on this coolant jacket 3 outsides, so this coolant jacket 3 can't cool off the heat energy that this thrust air bearing 7 is produced, cooling effect still remains to be improved.
Summary of the invention
The objective of the invention is is providing a kind of cooling range to contain the main shaft device that can improve cooling effect that each heat energy produces the position and produces preferable cooling effect.
The present invention can improve the main shaft device of cooling effect, comprises an axle unit, a housing, an outer coolant jacket, a motor, a fore bearing, a rear bearing and a thrust bearing.This axle unit has that a leading section, rearward end, one stage casing and between between this leading section and this rearward end is located at this rearward end and along the location diskware that radially extends.This housing is hollow tube-shape and is set in this outside, axle unit.This outer coolant jacket is hollow tube-shape and is set between this axle unit and this housing; And have one first end that should leading section, one be provided with the outer cooling duct that scope contains this first end, the second end and this pars intermedia to the second end that should rearward end, one pars intermedia and between between this first end and this second end; Should import cooling fluid by outer cooling duct; Outer cooling stage property that should outer coolant jacket has and a plurality ofly is arranged with in this first end and the second end end face and is communicated with the hoop portion of adjacent two axial part along axially extended axial part and a plurality of, and this outer coolant jacket also has the seal cover of this hoop portion open end of a plurality of sealings.This motor is installed between stage casing and the pars intermedia that should outer coolant jacket of this axle unit and drives this axle unit rotational.This fore bearing is installed in the leading section of this axle unit and is somebody's turn to do between the first end of outer coolant jacket.This rear bearing is installed in the rearward end of this axle unit and is somebody's turn to do between the second end of outer coolant jacket, and is arranged on this location diskware one side.This thrust bearing is installed in the rearward end of this axle unit and is somebody's turn to do between the second end of outer coolant jacket; And be arranged on this location diskware opposite side with respect to this rear bearing; This thrust bearing has a fixed disk portion that supports to end the second end end face of coolant jacket outside this and an extension that is arranged on this fixed disk portion one side and is set in this second end inside, and this extension is corresponding to the hoop portion of this outer cooling duct.Beneficial effect of the present invention is: the flow through outer cooling duct of this outer coolant jacket of cooling fluid produces the position to heat energy such as motor, fore bearing, rear bearing and this thrust bearings and dispels the heat, to reach preferable cooling effect.
Description of drawings
Fig. 1 is the combination section of existing a kind of main shaft device;
Fig. 2 is the top plan view constitutional diagram of a preferred embodiment of the present invention's main shaft device that can improve cooling effect;
Fig. 3 is the cross-sectional schematic of being got along the straight line III-III among Fig. 2;
Fig. 4 is the cross-sectional schematic of being got along the straight line IV-IV among Fig. 2;
Fig. 5 is the profile of an outer coolant jacket of this preferred embodiment;
Fig. 6 is the outer coolant jacket vertical view of this preferred embodiment;
Fig. 7 is the expanded view of the outer coolant jacket of this preferred embodiment;
Fig. 8 is the plane of an interior coolant jacket of this preferred embodiment;
Fig. 9 is the cross-sectional schematic of being got along the straight line IX-IX among Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated:
Like Fig. 2 and shown in Figure 3; The present invention can improve the main shaft device preferred embodiment of cooling effect, comprises that an axle unit 10, one are set in motor 40, one that outer coolant jacket 30, one that the outside housing in this axle unit 10 20, one be set in this axle unit 10 and 20 of this housings be installed in this axle unit 10 and 30 of this outer coolant jackets and are set in the interior coolant jacket 50 of 30 of this motor 40 and this outer coolant jackets, fore bearing that is arranged on these motor 40 front sides 60, rear bearing that is arranged on these motor 40 rear sides 70, a thrust bearing 80 and a headstock unit 90 that is arranged on this thrust bearing side after 80s that is arranged on these rear bearing 70 rear sides.
This axle unit 10 has the collet chuck 13 that an axle sleeve 11, are located in sliding seat 12 and and these sliding seat 12 screw locks in this axle sleeve 11, this axle sleeve 11 have a leading section 111, rearward end 112, one be located at this rearward end 112 and along the location diskware 114 that radially extends between the stage casing 113 of 112 of this leading section 111 and this rearward end and one.
This housing 20 is hollow tube-shape.
Cooperate and consult Fig. 4 and Fig. 5; Wherein Fig. 4 and Fig. 5 are respectively the hatchings of taking from Fig. 2 center line VI-VI, III-III; And Fig. 5 is identical with the section of Fig. 3; Should outer coolant jacket 30 be hollow tube-shape, and have one first end that should leading section 111 31, one be provided with outer cooling duct 34 and airtube 35 that scope contains this first end 31, this second end 32 and this pars intermedia 33 to the second end that should rearward end 112 32, one between the pars intermedia of 32 of this first end 31 and this second ends 33, one.Should import cooling fluid by outer cooling duct 34; And like Fig. 6 and shown in Figure 7; Should have 341 and outlets 342 that are provided with at interval along hoop with this inlet 341 of an inlet by outer cooling duct 34; This inlet 341 and 342 of this outlets have most again and are arranged with in this first end 31, the second end 32 end faces and are communicated with the hoop portion 344 of adjacent two axial part 343 and the seal covers 345 of most these hoop portion 344 open ends of sealing along axially extended axial part 343, most; 341 the axial part 343 of should entering the mouth is discontinuous shape, inboard and be provided with that an introducing port 343 ' and one separate with this introducing port 343 ' and the export mouth 343 of setting at interval corresponding to pars intermedia 33 at this inlet 341 ".
This motor 40 is installed in the stage casing 113 of this axle unit 10 and is somebody's turn to do 33 of the pars intermedias of outer coolant jacket 30 and drives this axle unit 10 and rotates.
Cooperate and consult Fig. 8; Should be hollow tube-shape by interior coolant jacket 50; And have one along hoop circuitous around interior cooling duct 51, in this cooling duct 51 have one level off to this rear bearing 70 and corresponding to the leading-in end 511 of this introducing port 343 ' and one level off to this fore bearing 60 and corresponding to this export mouth 343 " exit 512.
This fore bearing 60 is an air bearing; Be installed in 31 of leading section 111 and the first ends that should outer coolant jacket 30 of this axle unit 10; And have most and be disposed radially and along the air flow channel that axially interconnects 61, this air flow channel 61 interconnects with airtube 35 that should outer coolant jacket 30.
This rear bearing 70 is an air bearing; Be installed in 32 of rearward end 112 and the second ends that should outer coolant jacket 30 of this axle unit 10; And be arranged on this location diskware 114 1 sides; And having most along radially being provided with and along the air flow channel that axially interconnects 71, this air flow channel 71 interconnects with airtube 35 that should outer coolant jacket 30.
This thrust bearing 80 is an air bearing; Be installed in 32 of rearward end 112 and the second ends that should outer coolant jacket 30 of this axle unit 10; And be arranged on this location diskware 114 opposite sides with respect to this rear bearing 70; And have a fixed disk portion of support ending the second end 32 end faces of coolant jacket 30 at this outside 81, one and be arranged on these fixed disk portion 81 1 sides and be set in the inner extension 82 of this second end 32 and most the air flow channels 83 of setting vertically, this extension 82 is corresponding to the hoop portion 344 of this outer cooling duct 34.
This headstock unit 90 has the headstock 91 and the pressure cylinder 92 that pushes away this sliding seat 12 of pulling that are arranged on this thrust bearing side after 80s; This headstock 91 also is set in this housing 20 inside, and has an air guide joint 911, one and be located at the importing joint 912 of these air guide joint 911 1 sides, one and be located at the derivation joint 913 of these air guide joint 911 opposite sides, one and be located at the air outlet adapter 914 of these importing joint 912 1 sides, two and connect this air guide joint 911 and source of the gas is imported going into that flow channel 915 (see figure 3)s, are connected this importing joint 912 and cooling fluid being imported introducing runner 916 (see figure 4)s of the inlet 341 of this outer cooling duct 34, this derivation joint 913 of connection and cooling fluid is drawn runner 917 (see figure 9)s and grate flow channel 918 (see figure 3)s that are connected with this air outlet adapter 914 from these outlet 342 derivation of this airtube 35 and air flow channel 83.
As shown in Figure 3 again; When this main shaft device is processed, and when driving this motor 40 and rotating, this axle unit 10 is driven and is produced high speed rotating; Simultaneously; Pressure-air is introduced (seeing dotted arrow) from this air guide joint 911, and through going into the air flow channel 61,71,83 of flow channel 915, airtube 35 drainages to this fore bearing 60, rear bearing 70 and this thrust bearing 80, and provide this axle unit 10 to rotate smooth and easy; And this motor 40 produces maximum caloric value, and this fore bearing 60, rear bearing 70 and this thrust bearing 80 also all can produce heat energy because of windage.At this moment, as shown in Figure 4, import cooling fluid (seeing solid arrow) by this importing joint 912; After introducing runner 916 and introduce the inlet 341 of these outer cooling ducts 34, introducing port 343 ' via this, the cooling duct 51 and this motor 40 cooled off (cooperating ginseng Fig. 8) of flowing through earlier in this is by this export mouth 343 " flow out after; the axial part of flowing through again 343, hoop portion 344 (cooperating ginseng Fig. 7); and again fore bearing 60, rear bearing 70 and thrust bearing 80 are cooled off, at last by outlet 342, draw runner 917, (the cooperating ginseng Fig. 9) discharge of deriving joint 913, therefore; this main shaft device adds man-hour; at heat energy that member produced such as this motor 40, fore bearing 60, rear bearing 70 and thrust bearings 80, all produce preferable cooling effect, also guarantee the machining accuracy of main shaft device.
Claims (3)
1. main shaft device that can improve cooling effect, comprise an axle unit, one be set in the outside housing in this axle unit, one be set in the outer coolant jacket between this axle unit and this housing and be installed in this axle unit with should an outer motor, a fore bearing, a rear bearing, thrust bearing that cools off inner room; This main shaft device is characterised in that:
This axle unit has that a leading section, rearward end, one stage casing and between between this leading section and this rearward end is located at this rearward end and along the location diskware that radially extends;
This housing is hollow tube-shape and is set in this outside, axle unit;
Be somebody's turn to do outer coolant jacket; Be hollow tube-shape and be set between this axle unit and this housing; And have one first end that should leading section, one be provided with the outer cooling duct that scope contains this first end, the second end and this pars intermedia to the second end that should rearward end, one pars intermedia and between between this first end and the second end; Should import cooling fluid by outer cooling duct; Should outer cooling stage property have a plurality ofly to be arranged with in this first end and the second end end face and to be communicated with the hoop portion of adjacent two axial part along axially extended axial part and a plurality of, this outer coolant jacket also has the seal cover of this hoop portion open end of a plurality of sealings;
This motor is installed between stage casing and the pars intermedia that should outer coolant jacket of this axle unit and drives this axle unit rotational;
This fore bearing is installed between the leading section and first end that should outer coolant jacket of this axle unit;
This rear bearing is installed between the rearward end and the second end that should outer coolant jacket of this axle unit, and is arranged on this location diskware one side;
This thrust bearing; Be installed between the rearward end and the second end that should outer coolant jacket of this axle unit; And be arranged on this location diskware opposite side with respect to this rear bearing; This thrust bearing has a fixed disk portion that supports to end the second end end face of coolant jacket outside this and an extension that is arranged on this fixed disk portion one side and is set in this second end inside, and this extension is corresponding to the hoop portion of this outer cooling duct.
2. the main shaft device that can improve cooling effect as claimed in claim 1; It is characterized in that: also include one and be set in this motor and be somebody's turn to do the outer interior coolant jacket that cools off inner room and be hollow tube-shape; Should in coolant jacket have one along hoop circuitous around interior cooling duct; Should in cooling duct have a leading-in end that levels off to this rear bearing and one and level off to the exit of this fore bearing, this outer cooling stage property has an introducing port that is connected with this leading-in end and an export mouth that separates and be connected with this exit with this introducing port.
3. the main shaft device that can improve cooling effect as claimed in claim 1; It is characterized in that: this fore bearing, this rear bearing and this thrust bearing are all air bearing; This fore bearing, rear bearing respectively have most along radially being provided with and along the air flow channel that axially interconnects; This thrust bearing has most the air flow channels along axial setting, and this outer coolant jacket also has an airtube that is connected with said air flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910204176A CN102039426B (en) | 2009-10-19 | 2009-10-19 | Main shaft device capable of enhancing cooling effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910204176A CN102039426B (en) | 2009-10-19 | 2009-10-19 | Main shaft device capable of enhancing cooling effect |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102039426A CN102039426A (en) | 2011-05-04 |
| CN102039426B true CN102039426B (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910204176A Active CN102039426B (en) | 2009-10-19 | 2009-10-19 | Main shaft device capable of enhancing cooling effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102039426B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244559B (en) * | 2012-02-03 | 2016-01-20 | 达航科技股份有限公司 | Bush type pneumatic bearing and main shaft device |
| CN114713864B (en) * | 2022-06-09 | 2022-08-16 | 冈田精机(常州)有限公司 | Double-circulation cooling type gear spindle |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5798587A (en) * | 1997-01-22 | 1998-08-25 | Industrial Technology Research Institute | Cooling loop structure of high speed spindle |
| TW477262U (en) * | 2000-07-13 | 2002-02-21 | Ind Tech Res Inst | Mandrel cooling device for machine tool |
| US6373158B1 (en) * | 2000-10-05 | 2002-04-16 | Industrial Technology Research Institute | Motor main shaft provided with fast cooling means |
| TWM247333U (en) * | 2003-12-26 | 2004-10-21 | Yeong Chin Machinery Ind Co Lt | Structure of air cooling circuit shielding motor spindle therein |
| EP1609549A1 (en) * | 2003-03-31 | 2005-12-28 | NSK Ltd. | Main shaft device and machine tool with the same |
| CN200991756Y (en) * | 2006-12-18 | 2007-12-19 | 广州市大族高精电机有限公司 | Main axle device |
| CN201087935Y (en) * | 2007-05-25 | 2008-07-16 | 达鹏科技股份有限公司 | Principal shaft device |
-
2009
- 2009-10-19 CN CN200910204176A patent/CN102039426B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5798587A (en) * | 1997-01-22 | 1998-08-25 | Industrial Technology Research Institute | Cooling loop structure of high speed spindle |
| TW477262U (en) * | 2000-07-13 | 2002-02-21 | Ind Tech Res Inst | Mandrel cooling device for machine tool |
| US6373158B1 (en) * | 2000-10-05 | 2002-04-16 | Industrial Technology Research Institute | Motor main shaft provided with fast cooling means |
| EP1609549A1 (en) * | 2003-03-31 | 2005-12-28 | NSK Ltd. | Main shaft device and machine tool with the same |
| TWM247333U (en) * | 2003-12-26 | 2004-10-21 | Yeong Chin Machinery Ind Co Lt | Structure of air cooling circuit shielding motor spindle therein |
| CN200991756Y (en) * | 2006-12-18 | 2007-12-19 | 广州市大族高精电机有限公司 | Main axle device |
| CN201087935Y (en) * | 2007-05-25 | 2008-07-16 | 达鹏科技股份有限公司 | Principal shaft device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2000-15540A 2000.01.18 |
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|---|---|
| CN102039426A (en) | 2011-05-04 |
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Address after: Taipei City, Taiwan, China Patentee after: Dar Harnq Industry Co., Ltd. Address before: Taiwan, Taipei, China Zhongshan District No. 1 East Road, No. 132, Lane 3, building 15, building Patentee before: Dar Harnq Industry Co., Ltd. |