CN113001256A - Center cooling structure of electric spindle - Google Patents
Center cooling structure of electric spindle Download PDFInfo
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- CN113001256A CN113001256A CN202110266022.2A CN202110266022A CN113001256A CN 113001256 A CN113001256 A CN 113001256A CN 202110266022 A CN202110266022 A CN 202110266022A CN 113001256 A CN113001256 A CN 113001256A
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- channel
- shaft
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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
- 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)
- Sealing Devices (AREA)
Abstract
The invention discloses a central cooling structure of an electric spindle, which comprises an upper shell, a rotating connecting piece, a rotating shaft, a sliding shaft, a water distribution sleeve, a spacing sleeve, a lower shell and a water distribution sleeve, wherein the upper shell is provided with a first channel, a top end gland is provided with a second channel, the rotating connecting piece is provided with a third channel and a fourth channel which are mutually independent, the rotating shaft is provided with a fifth channel and a sixth channel which are mutually independent, the sliding shaft is provided with a seventh channel, an eighth channel and a ninth channel which are mutually independent, the water distribution sleeve is provided with a tenth channel, the electric spindle is provided with an eleventh channel, the spacing sleeve is sleeved outside the rotating connecting piece and forms a twelfth channel, the spacing sleeve is sleeved outside the rotating connecting piece and forms a thirteenth channel, the lower shell is also provided with a fourteenth channel and a fifteenth channel which are communicated with a first cavity. According to the invention, the cooling liquid forms a loop in the passage to cool the interior of the electric spindle, so that the heating condition in the electric spindle is greatly improved, and the service life of the electric spindle is prolonged.
Description
Technical Field
The invention relates to the technical field of electric spindle cooling, in particular to a central cooling structure of an electric spindle.
Background
At present, in the prior art, a rotary joint is poor in adaptation in a high-speed environment, is difficult to be matched with an electric spindle, is seriously abraded and poor in sealing performance, and is wasted due to frequent replacement; in addition, the cooling liquid mainly cools the shell of the electric spindle, the cooling effect is poor, and the inner bearing and the rotor of the electric spindle which generate heat more seriously cannot be cooled.
Therefore, how to provide an electric spindle center cooling structure capable of improving the internal cooling effect of the electric spindle is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a cooling structure for an electric spindle center, which aims to solve the problem that the electric spindle in the prior art generates heat seriously inside the electric spindle under high-speed rotation, which affects the service life of the electric spindle.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electric spindle center cooling structure comprising: go up casing, lower casing, top gland, sealed dish, stop collar, spacer, swivelling joint spare, support ring, rotation axis, the sealed lid of main shaft, sliding shaft, electricity main shaft and branch water jacket, the one end of going up the casing has the bellying, and the terminal surface of bellying has the depressed part, the casing has the tubular structure of first cavity down, go up in the one end that the casing has the bellying stretches into first cavity, just go up casing and lower casing fixed connection, set gradually from the one end that is fixed with last casing to the other end in the first cavity top gland, sealed dish, stop collar, spacer, swivelling joint spare, support ring, top gland fixed connection in the depressed part, sealed dish fixed connection in the bellying, the stop collar with sealed dish fixed connection, the spacer with the stop collar is contradicted, swivelling joint spare axis position has protruding axle, the protruding shaft is abutted against the top end gland, the rotary connecting piece is fixedly connected with the spacer bush, and a support ring used for limiting the rotary connecting piece to move towards one end far away from the upper shell is sleeved between the rotary connecting piece and the inner wall of the lower shell;
one end of the rotating shaft extends into the first cavity from the end, opposite to the upper shell, fixed on the lower shell and is fixedly connected with the rotating connecting piece, the other end of the rotating shaft is connected with the sliding shaft, the outer wall of the rotating shaft is rotatably connected with the inner wall of the first cavity through a rotating device, the rotating device plays an axial limiting role on the rotating shaft, one end, far away from the rotating shaft, of the sliding shaft is fixedly connected with the water distribution sleeve, the electric spindle is provided with a second cavity, one end, connected with the water distribution sleeve, of the sliding shaft extends into the second cavity, and one end, close to the rotating shaft, of the electric spindle is sealed through the spindle sealing cover;
the upper shell is provided with a first channel, the top end gland is provided with a second channel, the rotary connecting piece is provided with a third channel and a fourth channel which are mutually independent, the rotary shaft is provided with a fifth channel and a sixth channel which are mutually independent, the sliding shaft is provided with a seventh channel, an eighth channel and a ninth channel which are mutually independent, the water distribution sleeve is provided with a tenth channel, the electric spindle is provided with an eleventh channel, the spacer sleeve is sleeved outside the rotary connecting piece and forms a twelfth channel, the limiting sleeve is sleeved outside the rotary connecting piece and forms a thirteenth channel, the lower shell is further provided with a fourteenth channel and a fifteenth channel which are communicated with the first cavity, and the first channel is sequentially communicated with the second channel, the third channel, the fifth channel, the seventh channel, the ninth channel, the tenth channel, the eleventh channel, the eighth channel, the sixth channel, the eighth channel, the tenth channel, the twelfth channel and the tenth channel, The fourth channel, the twelfth channel and the thirteenth channel are communicated to form a passage, the fourteenth channel is communicated with the passage through a gap which is formed between the limiting sleeve and the spacer bush and is in contact with the passage, and the fifteenth channel is communicated with the passage through a gap which is formed between a protruding shaft and a top end gland of the rotary connecting piece and is in contact with the passage.
Further, be equipped with the first spacing post of threaded on the top gland, the depressed part has the first screw hole with first spacing post adaptation, first spacing post and first screw hole threaded connection, between top gland and the last casing the cover is equipped with first spring on the first spacing post.
Further, be equipped with the spacing post of threaded second on the stop collar, sealed have on the dish with the second screw hole of the spacing post adaptation of second, spacing post of second and second screw hole threaded connection, between stop collar and the sealed dish the cover is equipped with the second spring on the spacing post of second.
Further, be equipped with first compound sealing member between bellying axle that swivel connected coupler has and the top gland, first compound sealing member divide into two-layer body, two-layer body of first compound sealing member respectively with bellying axle and top gland fixed connection, and two-layer body is inconsistent.
Further, a second composite sealing element is arranged between the limiting sleeve and the spacer bush and is divided into two layers of bodies, the two layers of bodies of the second composite sealing element are fixedly connected with the limiting sleeve and the spacer bush respectively, and the two layers of bodies are abutted.
Furthermore, the first composite sealing element and the second composite sealing element are both made of ceramic materials.
Further, rotating device includes that the axle keeps off ring, gland, first bearing, annular fender ring and second bearing, first bearing is located with the second bearing the rotation axis with between the first cavity inner wall, be provided with between first bearing and the second bearing the annular keeps off the ring, first bearing with the shaft shoulder that rotation axis outer wall has offsets and contradicts, the axle with keep off the ring with the inner wall threaded connection of casing down, the gland with the outer wall threaded connection of rotation axis, the axle is used for keeping off ring and gland all with second bearing, annular fender ring and first bearing to the rotation axis is close to go up casing one end suppression.
Furthermore, the number of the fourth channels is multiple, the fourth channels are arranged around the third channel in an annular array, the number of the sixth channels, the number of the eighth channels and the number of the eleventh channels are multiple, the number of the sixth channels and the number of the eleventh channels are the same as the number of the fourth channels, and the eleventh channels, the eighth channels, the sixth channels and the fourth channels are correspondingly communicated in sequence to form a loop.
According to the technical scheme, compared with the prior art, the electric spindle has the characteristic of integration, the channels are arranged inside the electric spindle and all the parts, the cooling liquid is injected into the first channel of the upper shell, the cooling liquid forms a loop in the channel, and finally the cooling liquid flows out of the fourteen channels and the fifteen channels; meanwhile, due to the arrangement of the plurality of fourth channels, the plurality of sixth channels, the plurality of eighth channels and the plurality of eleventh channels, single-channel inlet and multi-channel outlet of cooling liquid can be realized, the cooling efficiency is high, the interior of the electric spindle is cooled aiming at two heat source motors and bearings in the electric spindle, the heating condition in the electric spindle is greatly improved, and the service life of the electric spindle is prolonged; and all adopt ceramic material to make through first compound sealing member and second compound sealing member, when the part of first compound sealing member and second compound sealing member both sides takes place relative rotation, can reduce the friction, reduce the wearing and tearing of part, make the leakproofness obtain guaranteeing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of an electric spindle center cooling structure provided by the present invention;
FIG. 2 is an enlarged view of a portion of A of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic structural diagram of an upper housing according to the present invention;
FIG. 4 is a schematic structural diagram of a lower housing according to the present invention;
FIG. 5 is a schematic structural view of a rotating shaft according to the present invention;
FIG. 6 is a schematic structural diagram of an electric spindle according to the present invention;
fig. 7 is a schematic structural view of a sliding shaft according to the present invention.
Wherein: 1 is an upper shell; 2 is a lower shell; 3 is a top end gland; 4 is a sealing disc; 5 is a limit sleeve; 6 is a spacer bush; 7 is a rotary connecting piece; 8 is a rotating shaft; 9 is a baffle ring for the shaft; 10 is a gland; 11 is a second axis; 12 is an annular baffle ring; 13 is a first bearing; 14 is a support ring; 15 is a second composite seal; 16 is a second limit column; 17 is a second spring; 18 is a first composite seal; 19 is a first limit column; 20 is a first spring; 21 is a main shaft sealing cover; 22 is a sliding shaft; 23 is a front bearing; 24 is an electric spindle; 25 is a water diversion sleeve; 26 is a rear bearing; 27 is a convex part; 28 is a recessed portion; 29 is a first cavity; 30 is a convex shaft; 31 is a first channel; 32 is a second channel; a third channel 33; 34 is a fourth channel; 35 is a fifth channel; 36 is a sixth channel; 37 is a seventh channel; 38 is an eighth channel; 39 is a ninth channel; 40 is a tenth channel; 41 is an eleventh channel; 42 is a twelfth channel; 43 is a thirteenth channel; 44 is a fourteenth channel; and 45 is a fifteenth channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 7, an embodiment of the present invention discloses an electric spindle center cooling structure, including: the upper shell 1, the lower shell 2, the top end gland 3, the sealing disc 4, the limiting sleeve 5, the spacer 6, the rotary connecting piece 7, the supporting ring 14, the rotating shaft 8, the main shaft sealing cover 21, the sliding shaft 22, the electric main shaft 24 and the water distribution sleeve 25, wherein one end of the upper shell 1 is provided with a convex part 27, the end surface of the convex part 27 is provided with a concave part 28, the lower shell 2 is provided with a tubular structure of a first cavity 29, one end of the upper shell 1 provided with the convex part 27 extends into the first cavity 29, the upper shell 1 is fixedly connected with the lower shell 2, the top end gland 3, the sealing disc 4, the limiting sleeve 5, the spacer 6, the rotary connecting piece 7 and the supporting ring 14 are sequentially arranged in the first cavity 29 from one end fixed with the upper shell 1 to the other end, the top end gland 3 is fixedly connected with the concave part 28, the sealing disc 4 is fixedly connected with the convex part 27, the limiting sleeve 5 is, the protruding axle 30 has in the shaft position of swivel connected coupler 7, and protruding axle 30 contradicts with top gland 3, and swivel connected coupler 7 and spacer 6 fixed connection, and the cover is equipped with the support ring 14 that is used for restricting swivel connected coupler 7 to keeping away from upper housing 1 one end and removes between swivel connected coupler 7 and the lower casing 2 inner wall.
One end of the rotating shaft 8 extends into the first cavity 29 from the end, opposite to the upper shell 1, fixed on the lower shell 2 and is fixedly connected with the rotating connecting piece 7, the other end of the rotating shaft 8 is connected with the sliding shaft 22, the outer wall of the rotating shaft 8 is rotatably connected with the inner wall of the first cavity 29 through a rotating device, the rotating device has an axial limiting effect on the rotating shaft 8, specifically, the rotating device comprises a shaft baffle ring 9, a gland cover 10, a first bearing 13, an annular baffle ring 12 and a second bearing 11, the first bearing 13 and the second bearing 11 are arranged between the rotating shaft 8 and the inner wall of the first cavity 29, the annular baffle ring 12 is arranged between the first bearing 13 and the second bearing 11, the first bearing 13 is abutted against a shaft shoulder arranged on the outer wall of the rotating shaft 8, the shaft baffle ring 9 is in threaded connection with the inner wall of the lower shell 2, the gland cover 10 is in threaded connection with the outer wall of the rotating shaft 8, and the shaft baffle ring 9, The annular retaining ring 12 and the first bearing 13 are pressed towards one end, close to the upper shell 1, of the rotating shaft 8, the sliding shaft 22 is fixedly connected with the water distribution sleeve 25 at one end, away from the rotating shaft 8, of the sliding shaft 22, the electric spindle 24 is provided with a second cavity, one end, connected with the water distribution sleeve 25, of the sliding shaft 22 extends into the second cavity, one end, close to the rotating shaft 8, of the electric spindle 24 is sealed through the spindle sealing cover 21, and the electric spindle 24 is supported through the front bearing 23 and the rear bearing 26 which are sleeved outside the.
The upper shell 1 is provided with a first channel 31, the top end gland 3 is provided with a second channel 32, the rotary connecting piece 7 is provided with a third channel 33 and a fourth channel 34 which are mutually independent, the rotary shaft 8 is provided with a fifth channel 35 and a sixth channel 36 which are mutually independent, the sliding shaft 22 is provided with a seventh channel 37, an eighth channel 38 and a ninth channel 39 which are mutually independent, the water distribution sleeve 25 is provided with a tenth channel 40, the electric spindle 24 is provided with an eleventh channel 41, the spacer sleeve 6 is sleeved outside the rotary connecting piece 7 and forms a twelfth channel 42, the limiting sleeve 5 is sleeved outside the rotary connecting piece 7 and forms a thirteenth channel 43, the lower shell 2 is further provided with a fourteenth channel 44 and a fifteenth channel 45 which are communicated with the first cavity 29, and the first channel 31 is sequentially communicated with the second channel 32, the third channel 33, the fifth channel 35, the seventh channel 37, the ninth channel 39, the tenth channel 40, the eleventh channel 41, the ninth channel 37 and the tenth channel 45, The eighth channel 38, the sixth channel 36, the fourth channel 34, the twelfth channel 42 and the thirteenth channel 43 are communicated to form a passage, the fourteenth channel 44 is communicated with the passage through a gap between the limiting sleeve 5 and the spacer sleeve 6, the fifteenth channel 45 is communicated with the passage through a gap between the protruding shaft 30 of the rotary connecting piece 7 and the top end gland 3, specifically, a part of the cooling liquid in the passage flows out through a gap between the top end gland 3 and the rotary connecting piece 7, flows through a gap between the top end gland 3 and the sealing disc 4, flows in through a gap between the upper shell 1 and the lower shell 2 and flows out through the fifteenth channel 45, the other part of the cooling liquid is divided into two paths, one path flows out through a gap between the limiting sleeve 5 and the spacer sleeve 6 and finally flows out from the fourteenth channel 44, the other path enters a gap between the top end gland 3 and the sealing disc 4 through the tenth channel 43 and flows out, flows in through the gap between the upper case 1 and the lower case 2 and flows out through the fifteenth channel 45.
In this embodiment, four fourth channels 34 are provided, four fourth channels 34 are arranged around the third channel 33 in an annular array, four sixth channels 36, four eighth channels 38 and four eleventh channels 41 are provided, and four eleventh channels 41, four eighth channels 38, four sixth channels 36 and four fourth channels 34 are correspondingly and sequentially communicated to form a cooling liquid loop, so that a single cooling liquid channel is accessed into multiple cooling liquid channels, and the cooling efficiency is further improved; in other embodiments, the number of the fourth channel 34, the sixth channel 36, the eighth channel 38, and the eleventh channel 41 may be other numbers according to actual requirements, and the specific number is not specifically limited herein.
In the above embodiment, the top end gland 3 is provided with the first limiting post 19 with threads, the recessed portion 28 is provided with the first threaded hole adapted to the first limiting post 19, the first limiting post 19 is in threaded connection with the first threaded hole, the first limiting post 19 between the top end gland 3 and the upper housing 1 is sleeved with the first spring 20, the first limiting post 19 can relatively fix the positions of the top end gland 3 and the upper housing 1, the first spring 20 can buffer the vibration generated in the rotating process of the rotating connecting piece 7, the rotating shaft 8 and the like, and meanwhile, the top end gland 3 tends to the elastic force in the direction of the rotating connecting piece 7; threaded second spacing post 16 is equipped with on the stop collar 5, have on the sealed dish 4 with the second screw hole of the spacing post 16 adaptation of second, spacing post 16 of second and second screw hole threaded connection, the cover is equipped with second spring 17 on the spacing post 16 of second between stop collar 5 and the sealed dish 4, the spacing post 16 of second can realize sealed dish 4 and stop collar 5's position relatively fixed, second spring 17's effect can be to rotation axis 8, the produced vibration of rotating parts rotation in-process such as swivelling joint spare 7 and electricity main shaft 24 plays the cushioning effect, have an elasticity that tends to the 6 directions of spacer sleeve to stop collar 5 simultaneously.
Specifically, a first composite sealing element 18 is arranged between a protruding shaft 30 of the rotary connecting piece 7 and the top end gland 3, the first composite sealing element 18 is divided into two layers of bodies, the two layers of bodies of the first composite sealing element 18 are respectively and fixedly connected with the protruding shaft 30 and the top end gland 3, and the two layers of bodies are abutted; a second composite sealing element 15 is arranged between the limiting sleeve 5 and the spacer bush 6, the second composite sealing element 15 is divided into two layers of bodies, the two layers of bodies of the second composite sealing element 15 are respectively and fixedly connected with the limiting sleeve 5 and the spacer bush 6, and the two layers of bodies are abutted, wherein, the first composite sealing element 18 and the second composite sealing element 15 are both made of ceramic materials, since the first composite seal member 18 and the second composite seal member 15 are each formed of two-layered bodies, and the two-layered bodies are respectively fixed to two opposing rotating members that abut against each other, namely the top end gland 3, the rotary connecting piece 7, the spacing sleeve 5 and the spacer bush 6, in the rotating process of the rotary connecting piece 7, the rotating shaft 8, the electric main shaft 24 and other parts, an oil film can be formed between the two layers of bodies, so that the lubricating effect is achieved, the high-speed rotating efficiency of the rotating part is guaranteed, the sealing effect is achieved, and the cooling liquid is prevented from leaking to a large extent.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. An electric spindle center cooling structure, comprising: go up casing, lower casing, top gland, sealed dish, stop collar, spacer, swivelling joint spare, support ring, rotation axis, the sealed lid of main shaft, sliding shaft, electricity main shaft and branch water jacket, the one end of going up the casing has the bellying, and the terminal surface of bellying has the depressed part, the casing has the tubular structure of first cavity down, go up in the one end that the casing has the bellying stretches into first cavity, just go up casing and lower casing fixed connection, set gradually from the one end that is fixed with last casing to the other end in the first cavity top gland, sealed dish, stop collar, spacer, swivelling joint spare, support ring, top gland fixed connection in the depressed part, sealed dish fixed connection in the bellying, the stop collar with sealed dish fixed connection, the spacer with the stop collar is contradicted, swivelling joint spare axis position has protruding axle, the protruding shaft is abutted against the top end gland, the rotary connecting piece is fixedly connected with the spacer bush, and a support ring used for limiting the rotary connecting piece to move towards one end far away from the upper shell is sleeved between the rotary connecting piece and the inner wall of the lower shell;
one end of the rotating shaft extends into the first cavity from the end, opposite to the upper shell, fixed on the lower shell and is fixedly connected with the rotating connecting piece, the other end of the rotating shaft is connected with the sliding shaft, the outer wall of the rotating shaft is rotatably connected with the inner wall of the first cavity through a rotating device, the rotating device plays an axial limiting role on the rotating shaft, one end, far away from the rotating shaft, of the sliding shaft is fixedly connected with the water distribution sleeve, the electric spindle is provided with a second cavity, one end, connected with the water distribution sleeve, of the sliding shaft extends into the second cavity, and one end, close to the rotating shaft, of the electric spindle is sealed through the spindle sealing cover;
the upper shell is provided with a first channel, the top end gland is provided with a second channel, the rotary connecting piece is provided with a third channel and a fourth channel which are mutually independent, the rotary shaft is provided with a fifth channel and a sixth channel which are mutually independent, the sliding shaft is provided with a seventh channel, an eighth channel and a ninth channel which are mutually independent, the water distribution sleeve is provided with a tenth channel, the electric spindle is provided with an eleventh channel, the spacer sleeve is sleeved outside the rotary connecting piece and forms a twelfth channel, the limiting sleeve is sleeved outside the rotary connecting piece and forms a thirteenth channel, the lower shell is further provided with a fourteenth channel and a fifteenth channel which are communicated with the first cavity, and the first channel is sequentially communicated with the second channel, the third channel, the fifth channel, the seventh channel, the ninth channel, the tenth channel, the eleventh channel, the eighth channel, the sixth channel, the eighth channel, the tenth channel, the twelfth channel and the tenth channel, The fourth channel, the twelfth channel and the thirteenth channel are communicated to form a passage, the fourteenth channel is communicated with the passage through a gap which is formed between the limiting sleeve and the spacer bush and is in contact with the passage, and the fifteenth channel is communicated with the passage through a gap which is formed between a protruding shaft and a top end gland of the rotary connecting piece and is in contact with the passage.
2. The electric spindle center cooling structure according to claim 1, wherein the top end gland is provided with a first limiting post with threads, the recess has a first threaded hole matched with the first limiting post, the first limiting post is in threaded connection with the first threaded hole, and a first spring is sleeved on the first limiting post between the top end gland and the upper shell.
3. The electric spindle center cooling structure according to claim 1, wherein a second limit post with a thread is mounted on the limit sleeve, a second threaded hole adapted to the second limit post is formed in the seal disk, the second limit post is in threaded connection with the second threaded hole, and a second spring is sleeved on the second limit post between the limit sleeve and the seal disk.
4. The structure of claim 1, wherein a first composite sealing element is disposed between the protruding shaft and the top end gland of the rotating connection member, the first composite sealing element is divided into two layers of bodies, the two layers of bodies of the first composite sealing element are respectively and fixedly connected with the protruding shaft and the top end gland, and the two layers of bodies are in contact with each other.
5. The electric spindle center cooling structure according to claim 4, wherein a second composite sealing element is arranged between the limiting sleeve and the spacer sleeve, the second composite sealing element is divided into two layers of bodies, the two layers of bodies of the second composite sealing element are respectively and fixedly connected with the limiting sleeve and the spacer sleeve, and the two layers of bodies are abutted against each other.
6. The structure of claim 5, wherein the first and second composite sealing members are made of ceramic.
7. The electric spindle center cooling structure according to claim 1, wherein the rotating device includes a shaft retaining ring, a gland, a first bearing, an annular retaining ring, and a second bearing, the first bearing and the second bearing are disposed between the rotating shaft and the inner wall of the first cavity, the annular retaining ring is disposed between the first bearing and the second bearing, the first bearing abuts against a shoulder of the outer wall of the rotating shaft, the shaft retaining ring is in threaded connection with the inner wall of the lower housing, the gland is in threaded connection with the outer wall of the rotating shaft, and the shaft retaining ring and the gland are used for pressing the second bearing, the annular retaining ring, and the first bearing toward the end of the rotating shaft close to the upper housing.
8. The central cooling structure of an electric spindle according to claim 1, wherein a plurality of fourth channels are provided, the plurality of fourth channels are disposed around the third channel in an annular array, and a plurality of sixth channels, eighth channels, and eleventh channels are provided and are equal in number to the fourth channels, and a plurality of eleventh channels, eighth channels, sixth channels, and fourth channels are correspondingly and sequentially communicated to form a loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110266022.2A CN113001256B (en) | 2021-03-11 | 2021-03-11 | Center cooling structure of electric spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110266022.2A CN113001256B (en) | 2021-03-11 | 2021-03-11 | Center cooling structure of electric spindle |
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| Publication Number | Publication Date |
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| CN113001256A true CN113001256A (en) | 2021-06-22 |
| CN113001256B CN113001256B (en) | 2022-05-06 |
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| CN202110266022.2A Active CN113001256B (en) | 2021-03-11 | 2021-03-11 | Center cooling structure of electric spindle |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010260150A (en) * | 2009-05-11 | 2010-11-18 | Okuma Corp | Spindle cooling apparatus |
| CN104439300A (en) * | 2014-11-12 | 2015-03-25 | 广州市昊志机电股份有限公司 | Motorized spindle with center water cooling structure |
| CN206009858U (en) * | 2016-08-29 | 2017-03-15 | 北京超同步伺服股份有限公司 | There is the electro spindle external member of refrigerating function |
| CN107891158A (en) * | 2017-11-24 | 2018-04-10 | 广州市昊志机电股份有限公司 | A kind of ultrasonic vibration high-speed electric main shaft |
| CN108406342A (en) * | 2018-05-04 | 2018-08-17 | 深圳市速锋科技股份有限公司 | A kind of cooling structure and lubrication system of electro spindle |
| CN111112655A (en) * | 2020-01-21 | 2020-05-08 | 科德数控股份有限公司 | Compact electric spindle |
-
2021
- 2021-03-11 CN CN202110266022.2A patent/CN113001256B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010260150A (en) * | 2009-05-11 | 2010-11-18 | Okuma Corp | Spindle cooling apparatus |
| CN104439300A (en) * | 2014-11-12 | 2015-03-25 | 广州市昊志机电股份有限公司 | Motorized spindle with center water cooling structure |
| CN206009858U (en) * | 2016-08-29 | 2017-03-15 | 北京超同步伺服股份有限公司 | There is the electro spindle external member of refrigerating function |
| CN107891158A (en) * | 2017-11-24 | 2018-04-10 | 广州市昊志机电股份有限公司 | A kind of ultrasonic vibration high-speed electric main shaft |
| CN108406342A (en) * | 2018-05-04 | 2018-08-17 | 深圳市速锋科技股份有限公司 | A kind of cooling structure and lubrication system of electro spindle |
| CN111112655A (en) * | 2020-01-21 | 2020-05-08 | 科德数控股份有限公司 | Compact electric spindle |
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| Publication number | Publication date |
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| CN113001256B (en) | 2022-05-06 |
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