CN203527144U - Internal-external cooling electric main shaft of high-speed turning center - Google Patents
Internal-external cooling electric main shaft of high-speed turning center Download PDFInfo
- Publication number
- CN203527144U CN203527144U CN201320165678.6U CN201320165678U CN203527144U CN 203527144 U CN203527144 U CN 203527144U CN 201320165678 U CN201320165678 U CN 201320165678U CN 203527144 U CN203527144 U CN 203527144U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- water jacket
- cooling
- bearing
- servo motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Motor Or Generator Cooling System (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Motor Or Generator Frames (AREA)
Abstract
An electric main shaft component cooling structure of a high-speed turning center is characterized in that a cooling cavity groove and a spiral fluid passage bearing water jacket are cut on an external circle between a built-in servo motor stator and a tank and a spiral water jacket is disposed on an external shell of the built-in servo motor stator; a cooling water inlet, the bearing water jacket, a built-in servo motor stator water jacket and a cooling water outlet jointly constitute a sealed external cooling circulation system; a peripheral cooling water inlet connector, a high-speed rotation connector, a pull rod, a main shaft, a flange and a peripheral cooling water backwater connector jointly constitute a sealed internal cooling circulation system; and cooling water controlled at a constant temperature flows through the two cooling circulation systems, cools fixed parts of the electric main shaft such as the built-in servo motor stator and the a main shaft bearing external ring and high-speed rotation parts such as an electric engine rotator, an internal bearing ring and both the internal channel and the external channel of the main shaft, reduces temperature rise of the electric main shaft component, increases thermal stability and working precision of a high-speed lathe and prolongs service life of the servo motor.
Description
Technical field
The utility model relates to electrocardio spindle unit cooling structure in a kind of high-speed turning.
Background technology
At present, existing high-speed turning center main motion structure is mainly comprised of main shaft, built-in type servomotor, main shaft bearing and casing.And temperature rise is important indicator of electric spindle unit, lathe is under high speed and heavily loaded condition of work, the heating of built-in type servomotor and main shaft bearing running is directly passed to the parts such as casing and main shaft, cause displacement of the lines and the angular displacement of main-shaft axis, affect machining accuracy, even cause bearing running hot and burn out.
Electricity main shaft heating mainly by the heating of the heating of stator winding and the iron loss of rotor and bearing rotary, generate heat and cause, for heating problem, popular several solutions are at present: (1) is given on built-in type servo motor stator shell and main shaft bearing outer ring increases water jacket, to take away the heat producing when the rotation of built-in type servomotor and main shaft bearing are worked; (2) at electric main shaft shell and electric main shaft axle core place, cooling heat pipe is set respectively, the condensation end of heat pipe is provided with fin, by cooling-air cold sink, reaches the effect of taking away spindle unit heat.But above structure has the following disadvantages when high-speed turning center applications: in scheme (1), this water cooling mode that increases water jacket on built-in type servo motor stator shell and main shaft bearing outer ring of giving has only carried out cooling to servo motor stator and main shaft bearing outer ring, to electric spindle rotor and main shaft bearing inner ring, do not carry out cooling, this type of cooling will cause spindle unit cold outside and hot inside, make main shaft because thermal expansion causes displacement of the lines and angular displacement on the one hand, affect machining accuracy, make on the other hand main shaft bearing outer ring temperature on the low side, inner ring temperature drift, caused bearing pre-tightened amount to increase, aggravated the heating of bearing.In scheme (2), at electric main shaft shell and electric main shaft axle core place, cooling heat pipe is set respectively, although can play cooling effect to the stator of electric main shaft and rotor heating to a certain extent, but because this kind of type of cooling is not directly to freeze by liquid cooling medium, but by cooling-air heat exchange, reach cooling object, in addition the hot exchange power of heat pipe is limited, make this cooling scheme can not effectively solution high-speed turning in the heat dissipation problem bringing of long-time, the powerful processing of electrocardio spindle unit.
Utility model content
The purpose of this utility model is to solve prior art weak point, pass through the utility model, on electric main shaft shell and main shaft bearing outer ring, increase peripheral water jacket, in main shaft inside, cooling-water duct is set simultaneously, it is as simultaneously cooling in the inside and outside two-way of rotor, bearing inner race, main shaft in built-in type servo motor stator, main shaft bearing outer ring and High Rotation Speed part that realization maintains static part to electric spindle unit, effectively control the whole temperature rise of electric spindle unit, reach and reduce the impact of thermal deformation on high-speed turning center machining accuracy.
The utility model solves the technical scheme that its technical problem adopts: the inside and outside cooling electric main shaft in a kind of high-speed turning center, between built-in type servo motor stator and casing, design a bearing water jacket, bearing water jacket cylindrical has been cut cooling chamber groove and screw type fluid passage, on built-in type servo motor stator shell with spiral water jacket; Peripheral cooling water inlet, bearing water jacket, built-in type servo motor stator water jacket, the common external cooling circulation system that forms a sealing of peripheral coolant outlet; In addition, there is pull bar main shaft inside, and pull bar inside is provided with deep hole, and the deep hole end of pull bar has some apertures; By the water supply connector of internal cooling water, high-speed joint, pull bar, main shaft, flange, internal cooling water backwater joint, jointly formed the interior cooling recirculation system of a sealing.
Between built-in type servomotor shell and casing, design a cylinder-shaped bearing water jacket, this bearing water jacket external diameter coordinates assembling with casing endoporus, and internal diameter coordinates with spiral water jacket cylindrical on built-in type servo motor stator.Stator water jacket external diameter surface is processed with a spiral fluid passageway, built-in type servo motor rotor is packed on main shaft by the interference of hot charging mode, there is pull bar main shaft inside, pull bar front end is connected with chuck, and rear end is connected with high-speed joint, and pull bar inside is provided with deep hole, the deep hole end of pull bar has some apertures, main spindle front bearing is installed on the anterior endoporus of bearing water jacket, and rear bearing block tightens together with the rear bearing block of bearing water jacket rear end, for rear bearing is installed.On the external diameter face of cylinder of bearing water jacket, process a cooling chamber groove and a spiral fluid passageway.During work, cooling fluid is through thermostat thermostatic control, then divide inside and outside two-way to enter electric spindle unit inner, a peripheral road cooling water enters bearing water jacket cooling chamber groove from import, cooling fore bearing outer ring, enter afterwards water jacket spiral fluid passageway, flow into again the spiral water jacket of stator, through multi-circle spiral flow, flow, cooling built-in type servo motor stator, after utilizing heat-conduction principle to absorb heat, from the outlet of casing cooling fluid, flow out and get back to thermostat, an inner road cooling water is entered by water supply connector, the high-speed joint of flowing through enters pull bar inside, the cooling-water duct of flowing through again between pull bar and inner hole of spindle, cooling main shaft, and then cooling rotor together with main shaft close fit, bearing inner race, utilize heat-conduction principle to absorb after heat, from flange delivery port, flow out, through backwater joint, get back to thermostat.This cooling structure is cooling owing to adopting inside and outside 2 road cooling waters to carry out simultaneously, has effectively shifted the caloric value of electric spindle unit, better controls the whole temperature rise of electric spindle unit.The feature of the utility model maximum is maintain static part from electric spindle unit periphery simultaneously cooling from electric spindle unit inner high speed rotating part in cooling, and High Rotation Speed partly adopts is directly cooling mode of cooling liquid, efficiency is high, make up the deficiency that existing structure exists when high-speed turning center applications, solved a difficult problem of arranging circulating cooling water channel in electric spindle unit High Rotation Speed part.
The beneficial effects of the utility model are, can carry out the while to the inside and outside circle of electric spindle rotor, stator, main shaft and main shaft bearing cooling, more effectively reduce the temperature rise of electric spindle unit, further promote machine finish, improve the service life of main shaft bearing and built-in type servomotor.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present utility model.
Fig. 2 is implementation figure of the present utility model.
In Fig. 1: 1. peripheral cooling water inlet, 2. peripheral coolant outlet, 3. main spindle box body, 4. bearing water jacket, 5. main shaft, 6. built-in type servo motor stator, 7 built-in type servo motor rotors, 8. fore bearing, 9. rear bearing, 10 rear bearing blocks, 11. sealing rings, 12. stator water jackets, 13. pull bars, 14. chucks, 15. internal cooling water water supply connectors, 16. high-speed joints, 17. flanges, 18. internal cooling water backwater joints.
In Fig. 2: 1. peripheral cooling water inlet, 2. peripheral coolant outlet, 3. main spindle box body, 4. bearing water jacket, 5. main shaft, 6. built-in type servo motor stator, 7 built-in type servo motor rotors, 8. fore bearing, 9. rear bearing, 10 rear bearing blocks, 11. sealing rings, 12. stator water jackets, 13. pull bars, 14. chucks, 15. internal cooling water water supply connectors, 16. high-speed joints, 17. flanges, 18. internal cooling water backwater joints.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Known according to Fig. 1 and Fig. 2, cooling structure described in the utility model is mainly concerned with: peripheral cooling water inlet 1, peripheral coolant outlet 2, main spindle box body 3, bearing water jacket 4, main shaft 5, built-in type servo motor stator 6, built-in type servo motor rotor 7, fore bearing 8, rear bearing 9, rear bearing block 10, sealing ring 11, stator water jacket 12, pull bar 13, chuck 14, internal cooling water water supply connector 15, high-speed joint 16, flange 17, internal cooling water backwater joint 18.Wherein cylinder-shaped bearing water jacket 4 external diameters coordinate assembling with casing 3 endoporus.Built-in type servo motor stator water jacket 12 is matched with bearing water jacket 4 inwalls, and the built-in type servo motor stator water jacket 12 external diameter faces of cylinder are processed with a spiral fluid passageway, built-in type servo motor rotor 7 is packed on main shaft 5 by the interference of hot charging mode, there is pull bar 13 main shaft 5 inside, pull bar 13 front ends are connected with chuck 14, pull bar 13 rear ends are connected with high-speed joint 16, pull bar 13 inside are provided with deep hole, the deep hole end of pull bar 12 has some apertures, fore bearing 8 is installed on the anterior endoporus of bearing water jacket 4, rear bearing block 10 tightens together with the rear bearing block 10 of bearing water jacket 4 rear ends, be used for installing rear bearing 9.On the external diameter face of cylinder of bearing water jacket 4, process a cooling chamber groove and a spiral fluid passageway, two ends adopt 11 pairs of casings of sealing ring and water jacket in conjunction with sealing.
During work, cooling fluid is through thermostat thermostatic control, then divide inside and outside two-way to enter electric spindle unit inner, a peripheral road enters the cooling chamber groove of bearing water jacket 4 from cooling water inlet 1, enter afterwards the spiral fluid passageway of water jacket 4, flow into again the spiral fluid passageway of built-in type servo motor stator water jacket 12, through multi-circle spiral flow, flow, from peripheral coolant outlet 2 flows out, get back to thermostat after utilizing heat-conduction principle to absorb heat.Another route internal cooling water water supply connector 15 enters, the high-speed joint 16 of flowing through enters pull bar 13 inside, the cooling-water duct of flowing through again between pull bar 13 and main shaft 5 endoporus, utilize heat-conduction principle to absorb after heat, from flange 17 delivery ports, flow out, through internal cooling water backwater joint 18, get back to thermostat.This cooling structure has effectively shifted the running caloric value of built-in type servo motor rotor, stator and main shaft bearing, and cooling fluid flows back to thermostat after absorbing heat, after release heat, recycles.
Claims (2)
1. the inside and outside cooling electric main shaft in a high-speed turning center, it is characterized in that: between built-in type servo motor stator (6) and casing (3), design a bearing water jacket (4), bearing water jacket (4) cylindrical has been cut cooling chamber groove and screw type fluid passage, on built-in type servo motor stator (6) shell with spiral water jacket (12); Peripheral cooling water inlet (1), bearing water jacket (4), built-in type servo motor stator water jacket (12), peripheral coolant outlet (2) form the external cooling circulation system of a sealing jointly; In addition, there is pull bar (13) main shaft (5) inside, and pull bar (13) inside is provided with deep hole, and the deep hole end of pull bar (13) has some apertures; By internal cooling water water supply connector (15), high-speed joint (16), pull bar (13), main shaft (5), flange (17), internal cooling water backwater joint (18), jointly formed the interior cooling recirculation system of a sealing.
2. the inside and outside cooling electric main shaft in high-speed turning according to claim 1 center, it is characterized in that built-in type servo motor stator water jacket (12) is matched with bearing water jacket (4) inwall, and built-in type servo motor stator water jacket (12) the external diameter face of cylinder is processed with a spiral fluid passageway, built-in type servo motor rotor (7) is packed on main shaft (5) by the interference of hot charging mode, there is pull bar (13) main shaft (5) inside, pull bar (13) front end is connected with chuck (14), pull bar (13) rear end is connected with high-speed joint (16), pull bar (13) inside is provided with deep hole, the deep hole end of pull bar (12) has some apertures, fore bearing (8) is installed on the anterior endoporus of bearing water jacket 4, rear bearing block (10) tightens together with the rear bearing block (10) of bearing water jacket 4 rear ends, be used for installing rear bearing (9), on the external diameter face of cylinder of bearing water jacket (4), process a cooling chamber groove and a spiral fluid passageway, two ends adopt sealing ring (11) to seal described casing and the combination of described water jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320165678.6U CN203527144U (en) | 2013-04-03 | 2013-04-03 | Internal-external cooling electric main shaft of high-speed turning center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320165678.6U CN203527144U (en) | 2013-04-03 | 2013-04-03 | Internal-external cooling electric main shaft of high-speed turning center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203527144U true CN203527144U (en) | 2014-04-09 |
Family
ID=50413406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320165678.6U Withdrawn - After Issue CN203527144U (en) | 2013-04-03 | 2013-04-03 | Internal-external cooling electric main shaft of high-speed turning center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203527144U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213029A (en) * | 2013-04-03 | 2013-07-24 | 宝鸡忠诚机床股份有限公司 | Cooling method of electric spindle for high-speed turning center, and internal and external cooled electric spindle |
| CN104942649A (en) * | 2015-07-21 | 2015-09-30 | 安阳工学院 | Internal and external cooling structure for high-speed motorized spindle |
| CN109108725A (en) * | 2018-09-27 | 2019-01-01 | 石鑫 | The lathe of circulation temperature lowering system in a kind of band |
| CN110757245A (en) * | 2019-11-07 | 2020-02-07 | 哈尔滨理工大学 | Device for double cooling of high-speed electric spindle and using method |
| CN112318201A (en) * | 2020-11-05 | 2021-02-05 | 珠海格力电器股份有限公司 | Shaft core cooling structure, electric main shaft and processing equipment |
-
2013
- 2013-04-03 CN CN201320165678.6U patent/CN203527144U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213029A (en) * | 2013-04-03 | 2013-07-24 | 宝鸡忠诚机床股份有限公司 | Cooling method of electric spindle for high-speed turning center, and internal and external cooled electric spindle |
| CN103213029B (en) * | 2013-04-03 | 2016-08-03 | 宝鸡忠诚机床股份有限公司 | A kind of high-speed turning center electro spindle cooling means and inside and outside cooling electro spindle |
| CN104942649A (en) * | 2015-07-21 | 2015-09-30 | 安阳工学院 | Internal and external cooling structure for high-speed motorized spindle |
| CN109108725A (en) * | 2018-09-27 | 2019-01-01 | 石鑫 | The lathe of circulation temperature lowering system in a kind of band |
| CN110757245A (en) * | 2019-11-07 | 2020-02-07 | 哈尔滨理工大学 | Device for double cooling of high-speed electric spindle and using method |
| CN112318201A (en) * | 2020-11-05 | 2021-02-05 | 珠海格力电器股份有限公司 | Shaft core cooling structure, electric main shaft and processing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103213029B (en) | A kind of high-speed turning center electro spindle cooling means and inside and outside cooling electro spindle | |
| CN203527144U (en) | Internal-external cooling electric main shaft of high-speed turning center | |
| CN104942649A (en) | Internal and external cooling structure for high-speed motorized spindle | |
| CN204349702U (en) | Electric rotating machine | |
| CN105798701B (en) | A kind of high speed based on pulsating heat pipe cooling structure, high precision electro main shaft | |
| CN202129679U (en) | High-speed electric main shaft cooling device for lowering temperature of cooling water through semiconductor refrigeration technology | |
| CN106685129B (en) | A kind of high-speed, high precision electro spindle based on single loop thermal siphon cooling structure | |
| CN111112652B (en) | Internal and external cooling system, cooling method, electric spindle and machining center | |
| CN110560715A (en) | Synchronous carving of axle in-core cooling permanent magnetism mills electric main shaft | |
| CN107297513A (en) | A kind of ultrahigh speed air static pressure electric spindle cooling structure in parallel | |
| CN206009858U (en) | There is the electro spindle external member of refrigerating function | |
| CN106041635A (en) | Thermal insulation cooling mechanism of electric main shaft bearing pedestal | |
| CN111509875A (en) | Internal water cooling back-wound winding high-speed permanent magnet motor stator | |
| CN105598477A (en) | High-speed high-accuracy electric spindle based on spindle core heat pipe cooling | |
| CN110735808B (en) | Pulsating flow enhanced cooling bearing seat device | |
| CN201323493Y (en) | Spiral groove cooling channel structure in electric main shaft | |
| CN101847909A (en) | Cooling method of high-speed lathe electric main shaft part and structure thereof | |
| CN114649906A (en) | Integrated heat dissipation system for hub motor and bearing unit | |
| CN214263911U (en) | High-efficient electric main shaft cooling jacket easy to assemble | |
| CN113231885A (en) | Efficient high-speed electric main shaft core cooling device | |
| CN205937533U (en) | A cooling body for ball electricity main shaft | |
| CN205496577U (en) | Can carry out high -speed electric main shaft of refrigerated to rear bearing | |
| CN211889864U (en) | Numerical control rotary table and cooling system thereof | |
| CN207710403U (en) | A kind of cooling body for ball electric spindle | |
| CN116436187A (en) | Oil cooling hub motor with main shaft as oil cooling channel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140409 Effective date of abandoning: 20160803 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |