CN210255396U - Cooling water jacket for electric spindle - Google Patents

Cooling water jacket for electric spindle Download PDF

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Publication number
CN210255396U
CN210255396U CN201921365646.4U CN201921365646U CN210255396U CN 210255396 U CN210255396 U CN 210255396U CN 201921365646 U CN201921365646 U CN 201921365646U CN 210255396 U CN210255396 U CN 210255396U
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water
cooling water
channel
cooling
parallel
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Chinese (zh)
Inventor
高思煜
施云高
杨爽
陈红
徐林森
夏明�
朱佰新
张孝俣
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Hefei Institutes of Physical Science of CAS
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Hefei Institutes of Physical Science of CAS
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Abstract

The utility model discloses a cooling water jacket for electric main shaft, the cooling water jacket is established between motor element lateral wall and shell inside wall, is equipped with cooling water channel structure on the cooling water jacket lateral wall, and cooling water channel structure includes a plurality of parallel water channels that set up along axial parallel, in a plurality of parallel water channels, except wherein completely separating between two adjacent parallel water channels, all the other adjacent parallel water channels connect in proper order end to end and form a complete cooling water channel with each parallel water channel in series; the two adjacent separated parallel water channels are respectively a water inlet channel and a water outlet channel, the end part of the water inlet channel is a water inlet end, the end part of the water outlet channel is a water outlet end, the water inlet end is in sealed butt joint with the main water inlet channel on the shell, and the water outlet end is in sealed butt joint with the main water outlet channel on the shell. Compared with the prior art, the utility model has the following advantages: the cooling device has the advantages of long cooling path, large cooling area, high cooling efficiency and the like, and meets the requirement of efficient cooling of the electric spindle.

Description

Cooling water jacket for electric spindle
Technical Field
The utility model belongs to the technical field of the electric main shaft cooling, what especially relate to is a cooling jacket for electric main shaft.
Background
The high-grade numerical control machine tool is developing towards the directions of high precision, high efficiency and high speed, wherein the electric spindle is one of main bodies for realizing high-precision and high-efficiency cutting technology and is a core functional component of the high-grade numerical control machine tool. The built-in heating components of the electric spindle in the rotation process comprise motor stator coil heating, motor rotor electromagnetic eddy current heating, bearing friction heating and the like, which can cause the structural thermal deformation of the spindle system and the change of electromagnetic driving characteristics. Structural thermal deformation of the electric spindle system results in changes in bearing support characteristics, which in turn affect the dynamic characteristics of the rotating shaft; the electromagnetic driving characteristic of the built-in motor of the electric spindle is influenced by the heat effect of the electric spindle, so that the output power, the torque and other properties of the motor are changed. Therefore, forced cooling of the motorized spindle is necessary to ensure thermal equilibrium within the motorized spindle. The traditional cooling water jacket adopts a spiral water channel, so that the cooling area is low, the cooling path is short, and the cooling efficiency is low. Due to the further improvement of the rotating speed, the power and the processing precision of the electric spindle, a cooling water jacket with higher cooling efficiency is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a cooling jacket for electric main shaft to satisfy electric main shaft high-efficient refrigerated demand under high rotational speed, high-power.
The utility model discloses a realize through following technical scheme:
a cooling water jacket for an electric spindle comprises a shell and a motor assembly arranged in the shell, wherein the motor assembly comprises a rotor and a stator which are arranged inside and outside, the cooling water jacket is arranged between the outer side wall of the motor assembly and the inner side wall of the shell, the cooling water jacket is sleeved outside the stator, a cooling water channel structure is arranged on the outer side wall of the cooling water jacket, the cooling water channel structure comprises a plurality of parallel water channels which are arranged in parallel along the axial direction, in the plurality of parallel water channels, except for the fact that two adjacent parallel water channels are completely separated, the other adjacent parallel water channels are sequentially connected end to end so as to connect all the parallel water channels in series to form a complete cooling water channel, and the outer side wall of the cooling water jacket is tightly matched with the inner side wall of the shell to realize the peripheral; the two adjacent separated parallel water channels are respectively a water inlet channel and a water outlet channel, the end part of the water inlet channel is a water inlet end, the end part of the water outlet channel is a water outlet end, the water inlet end is in sealed butt joint with the main water inlet channel on the shell, and the water outlet end is in sealed butt joint with the main water outlet channel on the shell.
Furthermore, the outer side wall of the cooling water jacket is provided with annular sealing grooves at the positions close to the two ends, and sealing rings are arranged in the sealing grooves and are tightly matched with the inner side wall of the shell through the two sealing rings.
Furthermore, in a plurality of parallel water channels, the structure between two adjacent parallel water channels is a rib, and the width of a single rib is less than half of the width of a single parallel water channel.
Furthermore, the outer side wall of the cooling water jacket is hermetically bonded with the inner side wall of the shell through a sealant.
Compared with the prior art, the utility model has the following advantages:
the utility model provides a pair of cooling jacket for electricity main shaft, it is through setting up a plurality of parallel water channels along axial parallel arrangement on the cooling jacket lateral wall, and each parallel water channel is established ties and is formed a complete cooling water channel, has advantages such as cooling path length, cooling area are big, cooling efficiency height, has satisfied the high-efficient refrigerated demand of electricity main shaft under high rotational speed, high-power. And the utility model has simple structure and low manufacturing cost.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a front view of the cold water jacket of the present invention after being engaged with the housing.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
Fig. 4 is a sectional view taken along line B-B of fig. 3.
Fig. 5 is a cross-sectional view of fig. 3 taken along line C-C.
Reference numbers in the figures: the water cooling structure comprises a shell 1, a cooling water jacket 2, a cooling water channel 3, a water inlet channel 4, a water outlet channel 5, a water inlet end 6, a water discharge end 7, a main water inlet channel 8, a main water discharge channel 9, a first sealing groove 10, a second sealing groove 11 and ribs 12.
Detailed Description
The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Referring to fig. 1 to 5, the present embodiment discloses a cooling water jacket for an electric spindle, the electric spindle includes a housing 1 and a motor assembly (not shown) disposed in the housing 1, the motor assembly includes a rotor and a stator disposed inside and outside, the cooling water jacket 2 is disposed between an outer side wall of the motor assembly and an inner side wall of the housing 1, the cooling water jacket 2 is sleeved outside the stator, a cooling water channel 3 structure is disposed on an outer side wall of the cooling water jacket 2, the cooling water channel 3 structure includes a plurality of parallel water channels disposed in parallel along an axial direction, and in the plurality of parallel water channels, except for a complete separation between two adjacent parallel water channels, the other adjacent parallel water channels are connected end to end in sequence, so that all the parallel water channels are connected in series to form a complete cooling water channel 3, and the outer side wall of the cooling water jacket 2 is tightly matched with the inner side wall of the shell 1 to realize the sealing of the periphery of the cooling water channel 3; wherein, the outer side wall of the cooling water jacket 2 is hermetically bonded with the inner side wall of the shell 1 through a sealant. The two adjacent separated parallel water channels are respectively a water inlet channel 4 and a water outlet channel 5, the end part of the water inlet channel 4 is a water inlet end 6, the end part of the water outlet channel 5 is a water outlet end 7, the water inlet end 6 is in sealed butt joint with a main water inlet channel 8 on the shell 1, and the water outlet end 7 is in sealed butt joint with a main water outlet channel 9 on the shell 1.
The outer side wall of the cooling water jacket 2 is provided with annular sealing grooves at the positions close to the two ends respectively, the two sealing grooves are a first sealing groove 10 and a second sealing groove 11 respectively, a sealing ring is arranged in each sealing groove, and the two sealing rings are tightly matched with the inner side wall of the shell 1 to prevent cooling water from overflowing from the two ends of the cooling water jacket 2.
The structure between two adjacent parallel water channels in the plurality of parallel water channels is ribs 12, the main body parts of the two adjacent parallel water channels are separated by the ribs 12, and the width of a single rib 12 is less than half of the width of a single parallel water channel.
During operation, cooling water enters the water inlet channel 4 of the cooling water jacket 2 from the main water inlet channel 8 of the shell 1, flows along the parallel water channels connected in series in sequence until reaching the water outlet channel 5, and is discharged through the main water discharge channel 9 of the shell 1, so that circulation of the cooling water is realized, and the internal motor assembly is cooled. The cooling water jacket 2 realizes the axial serial flow of cooling water and has the advantages of long cooling path, large cooling area, high cooling efficiency and the like.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (4)

1. The utility model provides an electricity cooling water jacket for main shaft, electric main shaft includes shell and the motor element who sets up in the shell, motor element includes inside and outside rotor and the stator that sets up which characterized in that: the cooling water jacket is arranged between the outer side wall of the motor assembly and the inner side wall of the shell, the cooling water jacket is sleeved outside the stator, a cooling water channel structure is arranged on the outer side wall of the cooling water jacket, the cooling water channel structure comprises a plurality of parallel water channels which are arranged in parallel along the axial direction, in the plurality of parallel water channels, except for the fact that two adjacent parallel water channels are completely separated, the other adjacent parallel water channels are sequentially connected end to end so as to serially connect all the parallel water channels to form a complete cooling water channel, and the outer side wall of the cooling water jacket is tightly matched with the inner side wall of the shell to realize the peripheral sealing of the cooling water channel; the two adjacent separated parallel water channels are respectively a water inlet channel and a water outlet channel, the end part of the water inlet channel is a water inlet end, the end part of the water outlet channel is a water outlet end, the water inlet end is in sealed butt joint with the main water inlet channel on the shell, and the water outlet end is in sealed butt joint with the main water outlet channel on the shell.
2. The cooling water jacket for the electric spindle according to claim 1, wherein: the outer side wall of the cooling water jacket is provided with annular sealing grooves at positions close to two ends respectively, sealing rings are arranged in the sealing grooves, and the sealing rings are tightly matched with the inner side wall of the shell.
3. The cooling water jacket for the electric spindle according to claim 1, wherein: in the plurality of parallel water channels, the structure between two adjacent parallel water channels is a rib, and the width of a single rib is smaller than half of the width of a single parallel water channel.
4. The cooling water jacket for the electric spindle according to claim 1, wherein: and the outer side wall of the cooling water jacket is hermetically bonded with the inner side wall of the shell through a sealant.
CN201921365646.4U 2019-08-20 2019-08-20 Cooling water jacket for electric spindle Active CN210255396U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921365646.4U CN210255396U (en) 2019-08-20 2019-08-20 Cooling water jacket for electric spindle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921365646.4U CN210255396U (en) 2019-08-20 2019-08-20 Cooling water jacket for electric spindle

Publications (1)

Publication Number Publication Date
CN210255396U true CN210255396U (en) 2020-04-07

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CN201921365646.4U Active CN210255396U (en) 2019-08-20 2019-08-20 Cooling water jacket for electric spindle

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110340727A (en) * 2019-08-20 2019-10-18 中国科学院合肥物质科学研究院 A kind of electro spindle cooling jacket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110340727A (en) * 2019-08-20 2019-10-18 中国科学院合肥物质科学研究院 A kind of electro spindle cooling jacket

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