CN110690782B - Vibration-damping air-cooling woodworking electric spindle - Google Patents
Vibration-damping air-cooling woodworking electric spindle Download PDFInfo
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- CN110690782B CN110690782B CN201911066538.1A CN201911066538A CN110690782B CN 110690782 B CN110690782 B CN 110690782B CN 201911066538 A CN201911066538 A CN 201911066538A CN 110690782 B CN110690782 B CN 110690782B
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- cover
- air
- shell
- electric spindle
- damping
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
Abstract
A damping air-cooling woodworking electric spindle comprises a spindle, a stator, a rotor, a shell, a front cover and a rear cover, wherein the shell is sleeved outside the spindle, the front cover and the rear cover are fixedly connected with the shell; the damping device also comprises damping pads arranged between the front cover and the outer ring of the first bearing and between the rear cover and the outer ring of the second bearing, and the damping effect is obvious; still including setting up and covering on casing and back and be used for indirectly taking away the heat that produces in the casing in order to carry out radiating first air-cooled cooling system, set up and be used for directly taking away the heat that produces in the casing in order to carry out radiating second air-cooled cooling system in the side of casing front end, the cooling effect is obvious.
Description
Technical Field
The invention relates to a woodworking electric spindle technology, in particular to a vibration-damping and efficient air-cooling woodworking electric spindle device.
Background
The development of the high-speed electric spindle for woodworkers is an effective means for realizing high-speed processing in the wood industry, wood has different properties and strengths in different directions due to the non-uniformity and the anisotropy of the wood, and included angles acting on the wood in different fiber directions during cutting are different. Therefore, the woodworking electric spindle needs to have excellent vibration damping performance, meanwhile, due to the special wood processing environment, the woodworking electric spindle is not suitable for adopting a liquid cooling mode, but the heating problem in electric spindle equipment is serious, for example, a practical patent with the patent number of 200720040352.5 discloses a high-speed woodworking electric spindle, air-cooled heat dissipation is adopted, the requirements of axial force, radial force and rigidity are met, but the heat dissipation effect of the product is not obvious, and the vibration damping problem is not considered. The invention makes further improvement on the basis of the patent, and particularly makes improvement on the aspects of vibration reduction and cooling of the woodworking motorized spindle. .
Disclosure of Invention
The invention aims to provide a novel high-speed woodworking motorized spindle with efficient vibration reduction and efficient air cooling performance.
The purpose of the invention is realized by adopting the following technical scheme. According to the invention, the vibration-damping air-cooling woodworking electric spindle comprises a spindle, a stator, a rotor, a shell, a front cover and a rear cover, wherein the shell is sleeved outside the spindle, the front cover and the rear cover are fixedly connected with the shell; the electric spindle further comprises a vibration damping pad arranged between the outer ring of the front cover and the outer ring of the first bearing and between the outer ring of the rear cover and the outer ring of the second bearing, and a first air-cooled cooling system arranged on the shell and the rear cover and used for indirectly taking away heat generated in the shell for heat dissipation when the electric spindle works.
Furthermore, the first air-cooled cooling system comprises a rear fan blade arranged at the rear shaft extension end of the main shaft, a plurality of radiating fins arranged on the side face of the shell in parallel, and a ventilation opening which is arranged on the rear cover and can cover the radiating fins when the rear cover is arranged on the shell, wherein the cooling air pumped by the rotating rear fan blade is used for blowing cold air to the radiating fins to indirectly take away heat generated in the shell when the electric main shaft works.
Furthermore, the rear end of the rear cover is provided with a dustproof cover which is covered on the outer side of the rear fan blade, and the dustproof cover is provided with a ventilation hole for the rear fan blade to suck cold air into when the electric spindle works.
Furthermore, the vibration reduction air-cooling woodworking electric spindle also comprises a second air-cooling system which is arranged on the side surface of the front end of the shell and directly takes away heat generated in the shell from the side surface when the electric spindle works so as to dissipate heat.
Furthermore, the second air-cooled cooling system comprises a through hole, a motor and a side fan blade, wherein the through hole is formed in the side face of the front end of the shell and used for dissipating heat generated in the shell outwards when the electric spindle works, the motor is arranged at the through hole, and the side fan blade is installed on an output shaft of the motor and rotates to directly take away the heat dissipated from the through hole when the electric spindle works.
Furthermore, a pressing plate for installing the motor is arranged at the through hole, and a plate rib is arranged between the pressing plate and the shell.
Furthermore, the second air-cooled cooling system further comprises a dust cover covering the outer side of the side fan blade, the upper side surface and the lower side surface of the dust cover are connected with the shell, the left side surface of the dust cover is connected with the front cover, and a heat dissipation hole for discharging heat carried by the rotating side fan blade to the outside is formed in the end surface of the dust cover.
Furthermore, the vibration damping pad adopts a rubber pad.
Further, the first bearing is an angular contact ball bearing, and the second bearing is a deep groove ball bearing.
The damping pads are arranged between the front cover and the outer ring of the bearing and between the rear cover and the outer ring of the bearing, so that the electric main shaft for the woodworking has a simple structure and an obvious effect, and has excellent damping performance. Meanwhile, the invention adopts an indirect air cooling heat dissipation mode at the rear end of the electric spindle and adopts a direct air cooling heat dissipation mode symmetrically at two sides of the front end, so that the structure is simple, the cooling effect is obvious, and the heating problem of the woodworking electric spindle is further solved.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
FIG. 1 is an isometric view of an overall structure of a vibration-damping air-cooled woodworking motorized spindle according to the present invention;
FIG. 2 is a cross-sectional view of the entire structure of a vibration-damping air-cooled woodworking electric spindle according to the present invention;
FIG. 3 is a right side view of the vibration-damping air-cooled woodworking electric spindle of the present invention with the dust cap removed;
FIG. 4 is a front view of the dust cover of the vibration-damping air-cooled woodworking electric spindle of the present invention;
FIG. 5 is a schematic view of a rear cover of the present invention;
FIG. 6 is an isometric view of the housing of the present invention;
FIG. 7 is a schematic view of a dust cap of the present invention;
FIG. 8 is a left side view of the overall structure of a vibration-damping air-cooled woodworking electric spindle according to the present invention.
[ reference numerals ]
1-a main shaft; 2-front nut; 3-front cover; 4-front gimbal; 5-a dust cover; 6-a shell; 7-a stator; 8-a rotor; 9-rear cover; 10-dust cover; 11-rear tight pad; 12-rear fan blades; 13-rear sealing ring; 14-rear rubber pad; 15-deep groove ball bearing; 16-rear gimbal ring; 17-lateral wind leaf; 18-a lock nut; 19-a motor; 20-front rubber pad; 21-angular contact ball bearings; 22-felt pad; 23-an electrical wire; 24-a junction box; 101-a vent; 501, drilling; 502-heat dissipation holes; 503-drilling; 602-a heat sink; 603-side vias; 604-a platen; 605-lath.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and examples. For convenience of explanation, the present embodiment defines the position of the front cover 3 as "front" and the position of the rear cover 9 as "rear".
Referring to fig. 1 to 8, the damping air-cooling woodworking electric spindle of the present invention includes a spindle 1, a front shaft extension end of the spindle 1 is supported on a front cover 3 through an angular contact ball bearing 21, a rear shaft extension end is supported on a rear cover 9 through a deep groove ball bearing 15, the front cover 3 and the rear cover 9 are both fixedly connected with a housing 6 with a cavity inside along an axial direction through screws, a stator 7 is arranged inside the housing 6, and a junction box 24 for connecting with a rotor coil and a motor and an electric wire 23 for connecting the junction box with a power supply are arranged on the top of the housing 6. The main shaft 1 is provided with a rotor 8 matched with the stator, a front balancing ring 4 and a rear balancing ring 16 which are arranged at the front end and the rear end of the rotor and matched with the rotor in an interference fit manner; the front shaft of main shaft 1 is stretched and is served the cover and be equipped with and be used for with the front cover 4 cooperation installation preceding nut 2, the rear shaft is stretched and is served the cover and be equipped with and be used for with the back sealing ring 13 of back lid 9 cooperation installation, all sets up labyrinth ring structure on the fitting surface of preceding nut 2 and front cover 3, on the fitting surface of back sealing ring and back lid 9, can effectively solve high-speed carpenter's electric main shaft's dustproof problem through two seal ring structures in front and back.
On the basis of the structure, the vibration-damping air-cooling woodworking electric spindle further comprises two vibration-damping pads which are arranged between the outer rings of the front cover 3 and the angular contact ball bearing 21 and between the outer rings of the rear cover 9 and the deep groove ball bearing 15 and used for damping vibration generated when the electric spindle works, and a first air-cooling system which is arranged on the shell 6 and the rear cover 9 and used for indirectly taking away heat generated in the shell to dissipate heat when the electric spindle works.
In the embodiment, the two vibration damping pads are respectively a front rubber pad 20 and a rear rubber pad 14, the outer ring of the angular contact ball bearing 21 is in minimal clearance fit with the front rubber pad 20, and the front cover 3 is in interference fit with the front rubber pad 20; the outer ring of the deep groove ball bearing 15 is in extremely small clearance fit with the rear rubber pad 14, the rear cover 9 is in interference fit with the rear rubber pad 14, and the problem of vibration of the woodworking electric spindle can be effectively solved through the front rubber pad and the rear rubber pad.
The first air-cooled cooling system comprises a rear fan blade 12 which is arranged on the rear shaft extension end of the main shaft 1 and is positioned in the rear cover 9, a plurality of radiating fins 602 which are arranged on the side face of the shell in parallel and extend along the axial direction of the shell, and a ventilation opening 101 which is arranged on the rear cover 9 and can cover the radiating fins 602 when the rear cover is arranged on the shell, wherein the ventilation opening 101 is used for allowing cold air pumped by the rotating rear fan blade to pass through and blow towards the radiating fins when the electric main shaft works so as to indirectly take away heat generated in the shell, when the electric main shaft works, the rear fan blade 12 synchronously rotates along with the main shaft 1, external cold air is pumped into the rear cover, the cold air forms an air field through the ventilation opening 101, and blows over the radiating fins 602 so as to indirectly take away heat dissipated in the shell, and the purpose of indirect heat dissipation is achieved. In the embodiment, the rear fan blade 12 is fixed on the rear shaft extension end of the main shaft 1 in an interference fit manner and is further fixed through a rear tightening pad 11 and a screw; in order to achieve the purpose of excellent heat dissipation, the left side and the right side of the shell 6 are both provided with the heat dissipation fins 602, the rear cover 9 is provided with four ventilation openings 101 which are symmetrical up and down and left and right, when the rear cover is installed on the shell, the two ventilation openings positioned on the left side of the rear cover can cover the heat dissipation fins positioned on the left side of the shell, and the two ventilation openings positioned on the right side of the rear cover can cover the heat dissipation fins positioned on the right side of the shell, so that the heat dissipation efficiency is improved; in addition, a dust cover 10 which is covered on the outer side of the rear fan blade is installed at the rear end of the rear cover 9 through a screw, a ventilation hole which is used for the rear fan blade to suck cold air into the rear cover when the electric spindle works is formed in the dust cover 10, on one hand, the dust cover can prevent the fan blade from being damaged due to mistaken collision with the rear fan blade, on the other hand, the cleanliness in the rear cover is kept, and the dust prevention performance of the electric spindle is further improved.
In order to further improve the heat dissipation performance of the electric spindle, the vibration reduction air-cooling woodworking electric spindle further comprises a second air-cooling system which is arranged on the side surface of the front end of the shell 6 and directly takes away heat generated in the shell from the side surface to dissipate heat when the electric spindle works, the second air-cooling system comprises a through hole 603 which is arranged on the side surface of the front end of the shell 6 and is used for dissipating the heat generated in the shell outwards when the electric spindle works, a motor 19 which is arranged at the through hole 603, and a side fan blade 17 which is arranged on an output shaft of the motor and rotates when the electric spindle works to directly take away the heat dissipated from the through hole 603, when the electric spindle works, the motor 19 rotates to drive the side fan blade 17 to rotate, so that the heat dissipated from the through hole 603 is directly exhausted to the outside, and the side air cooling of the woodworking electric spindle is realized. In order to achieve the purpose of excellent heat dissipation in this embodiment, a through hole 603 is respectively formed in the left and right side surfaces of the front end of the housing 6, a pressing plate 604 is arranged at each through hole 603, a plate rib 605 for reinforcing and stabilizing is arranged between the pressing plate and the housing, a motor 19 is mounted on each pressing plate 604, and the side fan blade is matched with an output shaft of the motor through key connection and is fixed by a locking nut 18. In addition, the second air-cooled cooling system further comprises a dust cover 5 covering the outer side of the side fan blade 17, a heat dissipation hole 502 for discharging heat carried by the rotating side fan blade 17 to the outside is formed in the end face of the dust cover, a first drilling hole 501 used for being connected with the shell 6 through a screw is formed in the upper side face and the lower side face of the dust cover, a second drilling hole 503 used for being connected with a front cover on the same side through a screw is formed in the left side face of the dust cover, on one hand, the situation that the side fan blade is damaged due to the fact that the side fan blade is touched by mistake can be avoided due to the existence of the dust cover, on the other hand, the motor and the cleanliness of the side fan blade are kept, and the service life of the motor and the service life of the side fan blade is prolonged.
The above description is only a preferred embodiment of the present invention, and any simple modification, equivalent change and modification made by those skilled in the art according to the technical essence of the present invention are within the technical scope of the present invention.
Claims (6)
1. The utility model provides a damping forced air cooling carpenter electricity main shaft, which comprises a main shaft, a stator, rotor and suit are at the casing in the aforementioned three outside, with the protecgulum and the back lid of casing rigid coupling, the front shaft of main shaft stretches the end and passes through first bearing support and on it the cover be equipped with be used for with the protecgulum cooperation preceding nut of installation, the back shaft of main shaft stretches the end and passes through the second bearing support and on it the cover be equipped with be used for with the back sealing ring of back lid cooperation installation, on the fitting surface of preceding nut and protecgulum, all set up labyrinth ring structure on the fitting surface of back sealing ring and back lid, all set up the damping pad between the outer lane of protecgulum and first bearing and between the outer lane of back lid and second bearing, its characterized in that: the first air-cooled cooling system comprises rear fan blades arranged at the rear shaft extension end of the main shaft, a plurality of radiating fins arranged on the side face of the shell in parallel and a ventilation opening arranged on the rear cover, the ventilation opening covers the radiating fins when the rear cover is arranged on the shell, the rear fan blades rotating when the electric main shaft works suck cold air into the rear cover, and the cold air blows to the radiating fins through the ventilation opening to indirectly take away heat generated in the shell; the second air-cooled cooling system comprises a through hole arranged on the side face of the front end of the shell, a motor arranged at the through hole and a side fan blade arranged on an output shaft of the motor, wherein heat generated in the shell is dissipated outwards through the through hole when the electric spindle works, and the side fan blade rotates to directly take away the heat dissipated from the through hole.
2. The vibration-damping air-cooled woodworking electric spindle of claim 1, wherein: the rear end of the rear cover is provided with a dustproof cover which is covered on the outer side of the rear fan blade, and the dustproof cover is provided with a ventilation hole for the rear fan blade to suck cold air when the electric spindle works.
3. The vibration-damping air-cooled woodworking electric spindle of claim 1, wherein: the through hole is provided with a pressing plate for mounting the motor, and a plate rib is arranged between the pressing plate and the shell.
4. The vibration-damping air-cooled woodworking electric spindle of claim 1, wherein: the second air-cooled cooling system further comprises a dust cover covering the outer side of the side fan blade, the upper side face and the lower side face of the dust cover are connected with the shell, the left side face of the dust cover is connected with the front cover, and heat dissipation holes for discharging heat carried by the rotating side fan blade to the outside are formed in the end face of the dust cover.
5. The vibration-damping air-cooled woodworking electric spindle according to any one of claims 1 to 4, wherein: the vibration damping pad adopts a rubber pad.
6. The vibration-damping air-cooled woodworking electric spindle according to any one of claims 1 to 4, wherein: the first bearing is an angular contact ball bearing, and the second bearing is a deep groove ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911066538.1A CN110690782B (en) | 2019-11-04 | 2019-11-04 | Vibration-damping air-cooling woodworking electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911066538.1A CN110690782B (en) | 2019-11-04 | 2019-11-04 | Vibration-damping air-cooling woodworking electric spindle |
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| Publication Number | Publication Date |
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| CN110690782A CN110690782A (en) | 2020-01-14 |
| CN110690782B true CN110690782B (en) | 2021-10-26 |
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| CN201911066538.1A Active CN110690782B (en) | 2019-11-04 | 2019-11-04 | Vibration-damping air-cooling woodworking electric spindle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112290722B (en) * | 2020-10-19 | 2021-10-12 | 湖南长锦成电器有限公司 | Permanent magnet synchronous servo motor |
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| CN202651970U (en) * | 2012-06-26 | 2013-01-02 | 横店集团联宜电机有限公司 | Connection structure of bearing and end cap for alternating current blower |
| CN205622418U (en) * | 2016-04-13 | 2016-10-05 | 常州市天速电机有限公司 | Good heat dissipation's two output shafts motor |
| CN109546805A (en) * | 2017-09-21 | 2019-03-29 | 发那科株式会社 | Motor cooling fan unit, motor and exhaust portion unit |
| CN208316506U (en) * | 2018-05-28 | 2019-01-01 | 常州安科特电机有限公司 | A kind of New energy automobile motor radiator |
| CN208753776U (en) * | 2018-07-28 | 2019-04-16 | 山东泰莱电气股份有限公司 | A kind of box type transformer with dust reduction capability |
| CN109301997A (en) * | 2018-11-21 | 2019-02-01 | 合肥泽尼特新能源有限公司 | A kind of New energy automobile motor of the high efficiency and heat radiation with water-proof function |
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