CN213561432U - Lateral water inlet and outlet type front and rear synchronous cooling device of main shaft - Google Patents
Lateral water inlet and outlet type front and rear synchronous cooling device of main shaft Download PDFInfo
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- CN213561432U CN213561432U CN202022223743.9U CN202022223743U CN213561432U CN 213561432 U CN213561432 U CN 213561432U CN 202022223743 U CN202022223743 U CN 202022223743U CN 213561432 U CN213561432 U CN 213561432U
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Abstract
The utility model discloses a synchronous cooling device around side direction business turn over water formula of main shaft, it is including the steel cylinder, the steel cylinder internal fixation has the water jacket, the front end of steel cylinder is fixed with the front axle bearing, the rear end of steel cylinder is fixed with the rear axle bearing, set up the income water course and the water outlet channel that are used for pouring into the cooling water in the lateral wall of rear axle bearing, water course in the middle of having seted up is seted up to the lateral wall of water jacket, the steel cylinder water course has been seted up in the lateral wall of steel cylinder, rear end S-shaped water course has been seted up in the lateral wall of rear axle bearing, front end S-shaped water course has been seted up in the lateral wall of front axle bearing, the income water course, the steel cylinder water course, front end S-shaped water course, middle water course and water outlet channel communicate in proper order, rear end S-shaped water course communicates between income water course and water outlet. The utility model discloses not only realized the synchronous cooling of front and back bearing, still made the main shaft around both ends cooling capacity unanimous, effectively guaranteed main shaft rigidity and machining precision.
Description
Technical Field
The utility model relates to a main shaft especially relates to a synchronous cooling device around side direction business turn over water formula of main shaft.
Background
When the high-speed electric spindle works, a rotor and a rolling bearing of the high-speed electric spindle generate a large amount of heat in the rotating process, and because the electric spindle is compact in structure, small in gap and weak in self-radiating effect, when the heat cannot be radiated, different degrees of thermal expansion can be generated among parts in the spindle, so that the rigidity, the processing precision and the like of the electric spindle are influenced, and the service life of the spindle is also influenced in long-term use. In the prior art, the cooling means inside the main shaft generally comprises that cooling water firstly enters a front bearing seat and then flows backwards into a rear bearing seat, the whole cooling water channel is of a serial structure, and the front bearing and the rear bearing cannot be synchronously cooled, so that the thermal expansion coefficients of the front bearing and the rear bearing are inconsistent; meanwhile, in the existing front bearing seat, the inlet and the outlet of the water channel are both arranged on the end face of the front bearing seat, and the structure occupies the end face area of the bearing seat, is easy to conflict with an air channel interface and the like, and is not beneficial to the layout of the water channel and the air channel; in addition, the existing cooling mode is that water channel grooves are generally arranged on the outer side walls of front and rear bearing seats, and the front and rear bearing seats have certain thicknesses, so that the distance between the water channel grooves and the bearings is long, the heat exchange efficiency is low, the internal heat dissipation capacity of the main shaft is low, and the rigidity, the precision and the service life of the main shaft cannot meet ideal requirements.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in, to prior art's not enough, provide one kind and can realize around the synchronous cooling of front and back bearing, main shaft both ends cooling capacity unanimous, and then guarantee main shaft rigidity, machining precision and life's main shaft around synchronous cooling device.
In order to solve the technical problem, the utility model adopts the following technical scheme.
A lateral water inlet and outlet type front and rear synchronous cooling device of a main shaft comprises a steel cylinder, a water jacket is fixed in the steel cylinder, a front bearing seat is fixed at the front end of the steel cylinder, a rear bearing seat is fixed at the rear end of the steel cylinder, a water inlet channel and a water outlet channel for injecting cooling water are arranged in the side wall of the rear bearing seat, the side wall of the water jacket is provided with a middle water channel, the side wall of the steel cylinder is internally provided with a steel cylinder water channel, a rear end S-shaped water channel is arranged in the side wall of the rear bearing seat, a front end S-shaped water channel is arranged in the side wall of the front bearing seat, the water inlet channel, the steel cylinder water channel, the front end S-shaped water channel, the middle water channel and the water outlet channel are communicated in sequence, the rear end S-shaped water channel is communicated between the water inlet channel and the water outlet channel, and a water inlet and a water outlet of the front end S-shaped water channel are both arranged on the side part of the front bearing seat.
Preferably, a plurality of first axial water channels are formed in the side wall of the rear bearing seat, a first radial water channel is communicated between every two adjacent first axial water channels, the plurality of first radial water channels are respectively arranged at the front end and the rear end of the rear bearing seat, and a rear end S-shaped water channel is formed by the plurality of first axial water channels and the plurality of first radial water channels.
Preferably, a plurality of second axial water channels are formed in the side wall of the front bearing seat, a second radial water channel is communicated between every two adjacent second axial water channels, the plurality of second radial water channels are respectively arranged at the front end and the rear end of the front bearing seat, and the front end S-shaped water channel is formed by the plurality of second axial water channels and the plurality of second radial water channels.
Preferably, a rear flange seat is formed at the rear end of the rear bearing seat, the rear bearing seat is inserted into the steel cylinder, and the rear flange seat is fixedly connected with the rear end of the steel cylinder.
Preferably, the water inlet channel and the water outlet channel are both arranged on the rear flange seat.
Preferably, the front bearing seat is inserted into the steel cylinder, and a water inlet of the front end S-shaped water channel is opened at a side portion of the front bearing seat.
Preferably, a front flange seat is formed at the front end of the front bearing seat, and the front flange seat is fixedly connected with the front end of the steel cylinder.
The utility model discloses an among the synchronous cooling device around side direction business turn over water formula of main shaft rear end S-shaped water course has been seted up in the lateral wall of rear bearing frame front end S-shaped water course has been seted up in the lateral wall of front bearing frame, and this rear end S-shaped water course and front end S-shaped water course are parallel to be set up, work as when the income water passageway pours into the cooling water, the cooling water is in reposition of redundant personnel in the income water passageway gets into simultaneously rear end S-shaped water course with the steel cylinder water course, and by the steel cylinder water course gets into front end S-shaped water course passes through middle water course with the water outlet end in rear end S-shaped water course joins, finally by water outlet channel discharges. Compared with the prior art, the utility model discloses will front end S-shaped water course is seted up in inside the lateral wall of front bearing frame, will simultaneously rear end S-shaped water course is seted up in inside the lateral wall of rear bearing frame, compare at the grooved structure of bearing frame lateral wall, the utility model discloses effectively reduced the distance between water course and the bearing, and then improved heat exchange capacity. On this basis, the water inlet and the delivery port of front end S-shaped water course are all seted up in the lateral part of front bearing frame, the utility model discloses a mode of side direction business turn over water need not to set up the cooling water access & exit at the terminal surface of front bearing frame, and this design does not occupy the front bearing frame terminal surface region, can effectively avoid taking place the conflict with gas circuit interface etc. is favorable to water course, air flue overall arrangement. Based on the structure, the utility model discloses can not only realize the synchronous cooling of front and back bearing, still make both ends cooling capacity unanimous around the main shaft, effectively guarantee main shaft rigidity and machining precision, help prolonging the life of main shaft simultaneously.
Drawings
FIG. 1 is a sectional view of the front and rear synchronous cooling device of the main shaft of the present invention;
FIG. 2 is a schematic view of the water path of the present invention at the beginning of the cooling water injection;
FIG. 3 is a schematic view of the water path of the present invention in a cooling water circulation state;
FIG. 4 is a perspective view of the rear bearing block;
FIG. 5 is an internal structural view of the rear bearing housing;
FIG. 6 is a cross-sectional view of the rear bearing carrier;
FIG. 7 is a perspective view of the front bearing block;
FIG. 8 is an internal structural view of the front bearing housing;
fig. 9 is a cross-sectional view of the front bearing housing.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings and examples.
The utility model discloses a lateral water inlet and outlet type front and rear synchronous cooling device of a main shaft, which is shown by combining a graph 1 to a graph 9 and comprises a steel cylinder 1, wherein a water jacket 2 is fixed in the steel cylinder 1, a front bearing seat 3 is fixed at the front end of the steel cylinder 1, a rear bearing seat 4 is fixed at the rear end of the steel cylinder 1, a water inlet channel 40 and a water outlet channel 41 for injecting cooling water are arranged in the side wall of the rear bearing seat 4, a middle water channel 20 is arranged on the side wall of the water jacket 2, a steel cylinder water channel 10 is arranged in the side wall of the steel cylinder 1, a rear S-shaped water channel 42 is arranged in the side wall of the rear bearing seat 4, a front S-shaped water channel 30 is arranged in the side wall of the front bearing seat 3, the water inlet channel 40 is arranged in the steel cylinder water channel 10, the front S-shaped water channel 30 is sequentially communicated with the water outlet channel 41, the rear S-shaped water channel 42 is communicated between the water inlet channel 40 and the water outlet channel 41, the water inlet 32 and the water outlet 33 of the front end S-shaped water passage 30 are both opened at the side of the front bearing housing 3.
In the above structure, the rear end S-shaped water channel 42 is formed in the side wall of the rear bearing seat 4, the front end S-shaped water channel 30 is formed in the side wall of the front bearing seat 3, the rear end S-shaped water channel 42 and the front end S-shaped water channel 30 are arranged in parallel, when the cooling water is injected into the water inlet channel 40, the cooling water flows in the water inlet channel 40, simultaneously enters the rear end S-shaped water channel 42 and the steel cylinder water channel 10, enters the front end S-shaped water channel 30 from the steel cylinder water channel 10, then joins with the water outlet end of the rear end S-shaped water channel 42 through the intermediate water channel 20, and finally is discharged from the water outlet channel 41. Compared with the prior art, the utility model discloses will front end S-shaped water course 30 is seted up in inside the lateral wall of front bearing frame 3, will simultaneously rear end S-shaped water course 42 is seted up in inside the lateral wall of rear bearing frame 4, compare at the grooved structure of bearing frame lateral wall, the utility model discloses effectively reduced the distance between water course and the bearing, and then improved heat exchange capacity. On this basis, the water inlet 32 and the delivery port 33 of front end S-shaped water course 30 are all seted up in the lateral part of front bearing frame 3, the utility model discloses a mode of side direction business turn over water need not the terminal surface at the front bearing frame and sets up the cooling water access & exit, and this design does not occupy the front bearing frame terminal surface region, can effectively avoid taking place the conflict with gas circuit interface etc. is favorable to water course, air flue overall arrangement. Based on the structure, the utility model discloses can not only realize the synchronous cooling of front and back bearing, still make both ends cooling capacity unanimous around the main shaft, effectively guarantee main shaft rigidity and machining precision, help prolonging the life of main shaft simultaneously.
In the present embodiment, in the process of injecting cooling water, influenced by the layout of the water path, please refer to fig. 2, the cooling water in the water outlet channel 41 flows backward to the middle water channel 20 at the beginning of water injection, and after the steel cylinder water channel 10, the rear end S-shaped water channel 42 and the middle water channel 20 are filled with cooling water, as shown in fig. 3, the cooling water in the branch flows toward the water outlet channel 41, so that the cooling water flows synchronously and parallelly in the front end S-shaped water channel 30 and the rear end S-shaped water channel 42.
Regarding the specific composition of the rear-end S-shaped water channel 42, in this embodiment, a plurality of first axial water channels 420 are formed in the side wall of the rear bearing seat 4, a first radial water channel 421 is communicated between two adjacent first axial water channels 420, the plurality of first radial water channels 421 are respectively disposed at the front end and the rear end of the rear bearing seat 4, and the rear-end S-shaped water channel 42 is formed by the plurality of first axial water channels 420 and the plurality of first radial water channels 421. The S-shaped water channel formed by the first axial water channel 420 and the first radial water channel 421 has a larger covering surface for the rear bearing seat 4, so that the cooling capacity is stronger.
Based on the same principle, in order to improve the cooling capacity of the front bearing seat 3, in this embodiment, a plurality of second axial water channels 300 are formed in the side wall of the front bearing seat 3, a second radial water channel 301 is communicated between two adjacent second axial water channels 300, the plurality of second radial water channels 301 are respectively disposed at the front end and the rear end of the front bearing seat 3, and the front end S-shaped water channel 30 is formed by the plurality of second axial water channels 300 and the plurality of second radial water channels 301.
As a preferable mode, a rear flange seat 43 is formed at the rear end of the rear bearing seat 4, the rear bearing seat 4 is inserted into the steel cylinder 1, and the rear flange seat 43 is fixedly connected with the rear end of the steel cylinder 1.
Further, the water inlet channel 40 and the water outlet channel 41 are both opened on the rear flange seat 43.
In this embodiment, the front bearing seat 3 is inserted into the steel cylinder 1, and the water inlet 32 and the water outlet 33 of the front end S-shaped water passage 30 are opened on the side of the front bearing seat 3. The structure that the water inlet 32 is arranged on the side part can avoid occupying the end surface area of the front bearing seat 3, can avoid conflict with the air passage, the screw hole position and the like on the end surface of the front bearing seat 3 in the design process, is favorable for reducing the design and manufacturing difficulty of the main shaft, is also convenient for cooling water to rapidly enter the front end S-shaped water passage 30, and is favorable for improving the cooling capacity.
Further, a front flange seat 34 is formed at the front end of the front bearing seat 3, and the front flange seat 34 is fixedly connected with the front end of the steel cylinder 1.
In the structure, the rear bearing seat 4 and the front bearing seat 3 are inserted into the steel cylinder 1, so that the front bearing seat and the rear bearing seat are more closely matched with the steel cylinder, the contact area between the front bearing seat and the rear bearing seat and the steel cylinder is increased, and the heat conduction capacity can be further improved.
The above is only the embodiment of the present invention, and is not intended to limit the present invention, and all modifications, equivalent replacements or improvements made within the technical scope of the present invention should be included within the protection scope of the present invention.
Claims (6)
1. A lateral water inlet and outlet type front and rear synchronous cooling device of a main shaft is characterized by comprising a steel cylinder, a water jacket is fixed in the steel cylinder, a front bearing seat is fixed at the front end of the steel cylinder, a rear bearing seat is fixed at the rear end of the steel cylinder, a water inlet channel and a water outlet channel for injecting cooling water are arranged in the side wall of the rear bearing seat, a middle water channel is arranged on the side wall of the water jacket, a steel cylinder water channel is arranged in the side wall of the steel cylinder, a rear-end S-shaped water channel is arranged in the side wall of the rear bearing seat, a front-end S-shaped water channel is arranged in the side wall of the front bearing seat, the water inlet channel, the steel cylinder water channel, the front-end S-shaped water channel, the middle water channel and the water outlet channel are sequentially communicated, the rear-end S-shaped water channel is communicated between the water inlet channel and the water outlet channel, and the front bearing seat, and the water inlet and the water outlet of the front end S-shaped water channel are both arranged on the side part of the front bearing seat.
2. The lateral water inlet and outlet type front and rear synchronous cooling device of a main shaft according to claim 1, wherein a plurality of first axial water channels are formed in a side wall of the rear bearing seat, a first radial water channel is communicated between two adjacent first axial water channels, the plurality of first radial water channels are respectively arranged at the front end and the rear end of the rear bearing seat, and a rear end S-shaped water channel is formed by the plurality of first axial water channels and the plurality of first radial water channels.
3. The lateral water inlet and outlet type front and rear synchronous cooling device of the main shaft according to claim 1, wherein a plurality of second axial water channels are formed in a side wall of the front bearing seat, a second radial water channel is communicated between two adjacent second axial water channels, the plurality of second radial water channels are respectively formed at front and rear ends of the front bearing seat, and a front end S-shaped water channel is formed by the plurality of second axial water channels and the plurality of second radial water channels.
4. The lateral water inlet and outlet type front and rear synchronous cooling device of the main shaft according to claim 1, wherein a rear flange seat is formed at the rear end of the rear bearing seat, the rear bearing seat is inserted into the steel cylinder, and the rear flange seat is fixedly connected with the rear end of the steel cylinder.
5. The lateral water inlet and outlet type front and rear synchronous cooling device of the main shaft as claimed in claim 4, wherein the water inlet channel and the water outlet channel are both opened on the rear flange seat.
6. The lateral water inlet and outlet type front and rear synchronous cooling device of the main shaft as claimed in claim 1, wherein a front flange seat is formed at the front end of the front bearing seat, and the front flange seat is fixedly connected with the front end of the steel cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022223743.9U CN213561432U (en) | 2020-10-03 | 2020-10-03 | Lateral water inlet and outlet type front and rear synchronous cooling device of main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022223743.9U CN213561432U (en) | 2020-10-03 | 2020-10-03 | Lateral water inlet and outlet type front and rear synchronous cooling device of main shaft |
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| CN213561432U true CN213561432U (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022223743.9U Active CN213561432U (en) | 2020-10-03 | 2020-10-03 | Lateral water inlet and outlet type front and rear synchronous cooling device of main shaft |
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| CN (1) | CN213561432U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192314A (en) * | 2020-10-03 | 2021-01-08 | 深圳市爱贝科精密机械有限公司 | Lateral water inlet and outlet type front and rear synchronous cooling device of main shaft |
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2020
- 2020-10-03 CN CN202022223743.9U patent/CN213561432U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112192314A (en) * | 2020-10-03 | 2021-01-08 | 深圳市爱贝科精密机械有限公司 | Lateral water inlet and outlet type front and rear synchronous cooling device of main shaft |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518111 1st and 2nd floors, building A6, silicon valley power intelligent terminal Industrial Park, No.20, Dafu Industrial Zone, Aobei community, Guanlan street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen aibeike Precision Industry Co.,Ltd. Address before: 518111 2nd floor, building A6, silicon valley power intelligent terminal Industrial Park, 20 Dafu Industrial Zone, Aobei community, Guanlan street, Longhua New District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ABIG PRECISION MACHINERY Co.,Ltd. |
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| CP03 | Change of name, title or address |