CN113482975A - Main shaft cooling device - Google Patents
Main shaft cooling device Download PDFInfo
- Publication number
- CN113482975A CN113482975A CN202110870809.XA CN202110870809A CN113482975A CN 113482975 A CN113482975 A CN 113482975A CN 202110870809 A CN202110870809 A CN 202110870809A CN 113482975 A CN113482975 A CN 113482975A
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- cooling
- spindle
- cooling device
- main shaft
- annular
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
- F04D29/584—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps cooling or heating the machine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/102—Shaft sealings especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Auxiliary Devices For Machine Tools (AREA)
Abstract
The invention discloses a spindle cooling device which comprises a spindle to be cooled, wherein the spindle is provided with a spindle cooling section, a plurality of annular cooling shaft shoulders are axially arranged on the spindle cooling section at intervals, an outer shell is arranged on the periphery of the spindle cooling section, a cooling cavity is formed inside the outer shell, a spraying device and a liquid outlet pipe are arranged on the outer shell, and the spraying device is used for spraying a cooling medium to the cooling cavity. The cooling device can utilize the cooling medium to carry out heat exchange on the cooling section of the main shaft, and is provided with the annular cooling shaft shoulder, so that the heat exchange contact area is greatly increased, and the cooling efficiency is improved.
Description
Technical Field
The invention relates to the technical field of cooling devices, in particular to a spindle cooling device.
Background
At present, the main shaft of a plurality of large-scale equipment, such as a fan main shaft, generates high temperature during working. The fan is a fluid mechanical device which drives a impeller to do work on air by a motor, and is widely applied to industries such as steel, chemical engineering, cement and the like, the fan in the cement industry plays an important role in a medium transmission process, wherein a high-temperature fan in a cement factory is a labor model on a production line, the high-temperature fan is always kept on post in production tasks all the year round, and operation and maintenance personnel in a central control room monitor various values of the running of the fan at any time, wherein the temperature monitoring of a high-temperature fan bearing is particularly important, and because the medium temperature of the high-temperature fan reaches 200-300 ℃, the temperature conducted from a main shaft of the high-temperature fan to the fan bearing can not be ignored, the condition that the fan jumps due to the overhigh temperature of the fan bearing often influences the production tasks. At present, no device capable of remarkably reducing the temperature of the main shaft of the fan exists.
Disclosure of Invention
The present invention is directed to a spindle cooling device, which solves the above problems and solves the above disadvantages and drawbacks of the prior art.
The technical problem solved by the invention can be realized by adopting the following technical scheme:
the utility model provides a main shaft cooling device, includes the refrigerated main shaft of waiting to cool down, the main shaft has main shaft cooling section, be provided with a plurality of annular cooling shaft shoulders along axial interval on the main shaft cooling section, the periphery of main shaft cooling section is provided with the shell body, the inside of shell body forms the cooling chamber, be provided with spray set and drain pipe on the shell body, spray set be used for to cooling chamber sprays cooling medium.
In a preferred embodiment of the present invention, the plurality of annular cooling shoulders are integrally formed with the spindle cooling section.
In a preferred embodiment of the invention, the annular cooling shoulders are arranged on a sleeve which is coaxially fixed to the cooling section of the main shaft.
In a preferred embodiment of the invention, the spindle cooling section is connected with the shaft sleeve through a key.
In a preferred embodiment of the present invention, two axial end outsides of the annular cooling shoulders at two ends are respectively provided with an annular oil blocking shoulder, the two end outsides of the outer shell are provided with an annular oil blocking cavity matched with the annular oil blocking shoulders, and at least one end of the cooling cavity is provided with a return port communicated with the annular oil blocking cavity.
In a preferred embodiment of the invention, the top end of the annular oil retaining shaft shoulder is provided with a first boss axially outwards, and the inner wall of the annular oil retaining cavity is provided with a second boss matched with the first boss.
In a preferred embodiment of the present invention, the outer casing comprises an upper casing and a lower casing arranged in a half structure, and the upper casing and the lower casing are connected through a flange.
In a preferred embodiment of the invention, the outer shell is mounted on the periphery of the main shaft cooling section through a fixing frame, and a packing is arranged between the outer shell and the outer wall of the main shaft cooling section or the shaft sleeve for sealing, so that the rotation of the main shaft is not influenced, and the cooling medium is not leaked.
In a preferred embodiment of the invention, the spraying device comprises a liquid inlet pipe and a plurality of spraying heads connected with the liquid inlet pipe.
In a preferred embodiment of the invention, a plurality of spray headers are respectively inserted into the gap between two adjacent annular cooling shoulders.
In a preferred embodiment of the invention, the plurality of spray headers are connected with the liquid inlet pipe through hoses.
In a preferred embodiment of the invention, the plurality of spray headers are connected with the inner wall of the outer shell through elastic components.
In a preferred embodiment of the invention, a liquid level mirror is arranged on the outer shell body, and the liquid level mirror is convenient for observing the liquid level in the cooling cavity.
In a preferred embodiment of the invention, a ball valve is arranged on the liquid outlet pipe.
Due to the adoption of the technical scheme, the cooling medium can be utilized to carry out heat exchange on the cooling section of the main shaft, and the annular cooling shaft shoulder is arranged, so that the heat exchange contact area is greatly increased, and the cooling efficiency is improved.
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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a front sectional view of fig. 1.
Fig. 3 is a perspective view of fig. 2.
Fig. 4 is an enlarged view at I of fig. 2.
Fig. 5 is a schematic structural view of a cooling section of a main shaft according to embodiment 1 of the present invention.
Fig. 6 is a schematic structural view of embodiment 2 of the present invention.
Fig. 7 is a front sectional view of fig. 6.
Fig. 8 is a perspective view of fig. 7.
Fig. 9 is an enlarged view at I of fig. 7.
Fig. 10 is a schematic structural view of a cooling section of a main shaft according to embodiment 2 of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.
Example 1
Referring to fig. 1 to 5, a spindle cooling device includes a spindle 1a to be cooled, where the spindle 1a has a spindle cooling section 1, and left and right end tools of the spindle cooling section 1 are connected to corresponding components, for example, the left and right end tools may be connected to a shaft output end and a bearing box, respectively.
The spindle cooling section 1 is provided with a plurality of annular cooling shoulders 10 at intervals along the axial direction, and the annular cooling shoulders 10 are arranged in an interval structure. The outer shell 20 is arranged on the periphery of the main shaft cooling section 1, and a cooling cavity 21 is formed inside the outer shell 20. In this embodiment, the plurality of annular cooling shoulders 10 and the main shaft cooling section 1 are integrally formed, the outer casing 20 includes an upper casing 20a and a lower casing 20b which are in a half structure, and the upper casing 20a and the lower casing 20b are connected by a flange 20 c. The outer shell 20 is installed in the periphery of the main shaft cooling section 1 through a fixing frame, and the outer shell 20 and the outer wall of the main shaft cooling section 1 are sealed through a packing 60, so that the rotation of a main shaft is not influenced, and the leakage of a cooling medium is avoided.
The outer shell 20 is provided with a spraying device 30 and a liquid outlet pipe 40, and the spraying device 30 is used for spraying a cooling medium into the cooling cavity 21. Specifically, the cooling medium may be a coolant or a thin oil.
The spraying device 30 includes a liquid inlet pipe 31 and a plurality of spraying heads 32 connected to the liquid inlet pipe 31, and the plurality of spraying heads 32 in this embodiment are connected to the liquid inlet pipe 31 through a hose 33. Specifically, the liquid inlet pipe 31 is welded to the upper housing 20a, the plurality of spray headers 32 are connected to the liquid inlet pipe 31 through hoses 33, and when a cooling medium is added to the liquid inlet pipe 31, the cooling medium is sprayed onto the spindle cooling section 1 in the cooling chamber 21 through the plurality of spray headers 32 to cool. In order to further improve the cooling effect, the plurality of spray headers 32 are respectively inserted into the gaps 10a between the two adjacent annular cooling shoulders 10, so that the cooling medium sprayed by the spray headers 32 can directly contact the annular cooling shoulders 10, the contact area between the cooling medium and the main shaft cooling section 1 is increased, the heat exchange contact area is increased, and the cooling efficiency is improved. The plurality of spray headers 32 are connected to the inner wall of the outer housing 20 by elastic members 34. The elastic component 34 is a spring, one end of the spring 34 is connected with the plurality of spray headers 32, and the other end of the spring 34 is connected with the inner wall of the outer shell 20. The hose 33 and the spring 34 not only can support the plurality of shower heads 32, but also can enable the plurality of shower heads 32 to have a certain floating space in the cooling chamber 21, thereby effectively preventing the main shaft bouncing problem.
The spindle cooling section 1 is provided with an annular oil blocking shoulder 50 at the outer side of each of the two ends of the outer shell 20, and the annular oil blocking shoulder 50 is used for blocking the cooling medium from leaking. An annular oil blocking cavity 50a matched with the annular oil blocking shaft shoulder 50 is arranged on the outer side of two ends of the outer shell 20, and a return port 21a communicated with the annular oil blocking cavity 50a is arranged at least one end of the cooling cavity 21. Specifically, the return port 21a is used for returning the cooling medium in the annular oil blocking cavity 50a to the cooling cavity 21, and the return ports 21a communicated with the annular oil blocking cavity 50a may also be arranged at two ends of the cooling cavity 21, so that the return effect of the cooling medium is increased, the cooling medium is not wasted, the cooling medium can be well recovered and discharged, and no leakage of the cooling medium can be ensured.
A liquid level mirror 22 is arranged on the outer shell 20 for conveniently observing the liquid level in the cooling cavity 21. The liquid level mirror 22 is located outside the lower case 20 b.
The liquid outlet pipe 40 is provided with a ball valve 40a, and the effect of opening or closing the liquid outlet pipe 40 to discharge the cooling medium can be achieved through the ball valve 40 a. The discharge speed of the liquid outlet pipe 40 can be controlled by the ball valve 40a, and the liquid inlet speed of the liquid inlet pipe 31 and the discharge speed of the liquid outlet pipe 40 are adjusted, so that the liquid level H in the lower shell 20b is kept at the upper part of the lower shell 20b, the outer end of the annular cooling shaft shoulder 10 is inserted into the cooling medium in the lower shell 20b, and the cooling effect is further improved.
The working principle of the invention is as follows:
firstly, a cooling medium is added through a liquid inlet pipe 31, enters a spraying device 30 of an outer shell 20, is conveyed to a plurality of spraying heads 32 through hoses 31 of the spraying device 30, is sprayed through the plurality of spraying heads 32, is cooled by the cooling medium on a plurality of annular cooling shaft shoulders 10 and a main shaft cooling section 1, flows into a cooling cavity 21 and is discharged through a liquid outlet pipe 40 on the outer shell 20. Because the ball valve 40a is arranged on the liquid outlet pipe 40, the outer ends of the annular cooling shaft shoulders 10 can be always immersed in the cooling medium, the outer shell 20, the return port 21a and the annular oil blocking shaft shoulder 50 can perfectly seal the cooling medium in the outer shell 20, the cooling medium is not wasted, the oil can be well recovered, and one drop of the cooling medium is not leaked.
Example 2
Referring to fig. 6 to 10, a spindle cooling device includes a spindle 1a ' to be cooled, the spindle 1a has a spindle cooling section 1 ', and left and right end tools of the spindle cooling section 1 ' are connected to corresponding components, for example, a shaft output end and a bearing box, respectively.
The main shaft cooling section 1 ' is provided with a plurality of annular cooling shoulders 10 ' at intervals along the axial direction, and the annular cooling shoulders 10 ' are arranged in an interval structure. The outer shell 20 'is arranged on the periphery of the main shaft cooling section 1', and a cooling cavity 21 'is formed inside the outer shell 20'. In this embodiment, a plurality of annular cooling shoulders 10 'are disposed on a shaft sleeve 70' coaxially fixed on the main shaft cooling section 1 ', the main shaft cooling section 1' is connected with the shaft sleeve 70 'through a key 71', and the main shaft cooling section 1 'and the shaft sleeve 70' are respectively provided with corresponding key slots 1b 'and 72'. And the process for processing the annular cooling shaft shoulder 10 'on the shaft sleeve 70' is simple, and the method is suitable for the field of large-scale main shafts without processing the annular cooling shaft shoulder on the main shaft. The outer housing 20 'includes an upper housing 20 a' and a lower housing 20b 'arranged in a half structure, and the upper housing 20 a' and the lower housing 20b 'are connected by a flange 20 c'. The outer shell 20 ' is installed on the periphery of the main shaft cooling section 1 ' through a fixing frame, and the outer shell 20 ' and the shaft sleeve 70 ' are sealed through a packing 60 ', so that the rotation of the main shaft is not influenced, and the cooling medium cannot leak.
The outer shell 20 ' is provided with a spray device 30 ' and a liquid outlet pipe 40 ', and the spray device 30 ' is used for spraying a cooling medium into the cooling cavity 21 '. Specifically, the cooling medium may be a coolant or a thin oil.
The spraying device 30 ' comprises a liquid inlet pipe 31 ' and a plurality of spraying heads 32 ' connected with the liquid inlet pipe 31 ', wherein the plurality of spraying heads 32 ' are connected with the liquid inlet pipe 31 ' through a hose 33 '. Specifically, the liquid inlet pipe 31 ' is welded on the upper housing 20a ', the plurality of spray heads 32 ' are connected with the liquid inlet pipe 31 ' through the flexible pipe 33 ', and when the liquid inlet pipe 31 ' is filled with the cooling medium, the cooling medium is sprayed on the spindle cooling section 1 ' in the cooling cavity 21 ' through the plurality of spray heads 32 ' to cool. In order to further improve the cooling effect, the plurality of spray headers 32 'are respectively inserted into the gaps 10 a' between the two adjacent annular cooling shoulders 10 ', so that the cooling medium sprayed by the spray headers 32' can directly contact the annular cooling shoulders 10 ', the contact area between the cooling medium and the main shaft cooling section 1' is increased, the heat exchange contact area is increased, and the cooling efficiency is improved. The plurality of spray headers 32 ' are connected with the inner wall of the outer shell 20 ' through elastic parts 34 '. The elastic member 34 ' is a spring, one end of the spring 34 ' is connected with the plurality of shower heads 32 ', and the other end of the spring 34 ' is connected with the inner wall of the outer housing 20 '. The hose 33 ' and the spring 34 ' not only can support the plurality of shower heads 32 ', but also can enable the plurality of shower heads 32 ' to have a certain floating space in the cooling chamber 21 ', thereby effectively preventing the main shaft from bouncing.
The spindle cooling section 1 'is provided with an annular oil retaining shoulder 50' at the outer side of each of the two ends of the outer shell 20 ', and the annular oil retaining shoulder 50' is used for blocking the cooling medium from leaking. An annular oil retaining cavity 50a 'matched with the annular oil retaining shaft shoulder 50' is arranged at the outer side of the two ends of the outer shell 20 ', and a return port 21 a' communicated with the annular oil retaining cavity 50a 'is arranged at least one end of the cooling cavity 21'. Specifically, the return port 21a 'is used for returning the cooling medium in the annular oil blocking cavity 50 a' to the cooling cavity 21 ', and the return ports 21 a' communicated with the annular oil blocking cavity 50a 'can be arranged at two ends of the cooling cavity 21', so that the return effect of the cooling medium is increased, the cooling medium is not wasted, the cooling medium can be well recovered and discharged, and no leakage of the cooling medium can be ensured. In order to further increase the sealing effect, the top end of the annular oil retaining shoulder 50 'is provided with a first boss 51' axially outwards, the inner wall of the annular oil retaining cavity 50a 'is provided with a second boss 51 a' matched with the first boss 51 ', and the first boss 51' and the second boss 51a 'can prevent the cooling medium in the annular oil retaining cavity 50 a' from splashing to the packing.
A liquid level mirror 22 ' is arranged on the outer shell 20 ' for conveniently observing the liquid level in the cooling cavity 21 '. The level mirror 22 'is located outside the lower housing 20 b'.
The outlet pipe 40 'is provided with a ball valve 40 a', and the opening or closing of the ball valve 40a 'can be realized to discharge the cooling medium to the outlet pipe 22'. The discharge speed of the liquid outlet pipe 40 ' can also be controlled by the ball valve 40a ', and the liquid inlet speed of the liquid inlet pipe 31 ' and the discharge speed of the liquid outlet pipe 40 ' are adjusted, so that the liquid level H ' in the lower shell 20b ' is kept at the upper part of the lower shell 20b ', and the outer end of the annular cooling shaft shoulder 10 ' is inserted into the cooling medium in the lower shell 20b ', thereby further improving the cooling effect.
The working principle of the invention is as follows:
firstly, a cooling medium is added through a liquid inlet pipe 31 ', enters a spraying device 30' of an outer shell 20 ', is conveyed to a plurality of spraying heads 32' through a hose 31 'of the spraying device 30', and is sprayed through the plurality of spraying heads 32 ', so that the cooling medium cools a plurality of annular cooling shaft shoulders 10' and a main shaft cooling section 1 ', and as the shaft sleeve 70' is in contact connection with the main shaft cooling section 1 ', the shaft sleeve and the main shaft cooling section can realize heat transfer, the cooling medium flows into a cooling cavity 21' and is discharged through a liquid outlet pipe 40 'on the outer shell 20'. Because the ball valve 40 ' is arranged on the liquid outlet pipe 40 ', the outer ends of the annular cooling shaft shoulders 10 ' can be always immersed in the cooling medium, the outer shell 20 ', the return port 21a ' and the annular oil blocking shaft shoulder 50 ' can perfectly seal the cooling medium in the outer shell 20 ', the cooling medium is not wasted, the oil can be well recovered, and one drop of the cooling medium is ensured not to leak.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (14)
1. The utility model provides a main shaft cooling device, includes the refrigerated main shaft of waiting to cool down, its characterized in that, the main shaft has main shaft cooling section, be provided with a plurality of annular cooling shaft shoulders along the axial interval on the main shaft cooling section, the periphery of main shaft cooling section is provided with the shell body, the inside of shell body forms the cooling chamber, be provided with spray set and drain pipe on the shell body, spray set be used for to cooling chamber jet cooling medium.
2. A spindle desuperheating and cooling device as claimed in claim 1, wherein said plurality of annular cooling shoulders are integrally formed with said spindle cooling section.
3. A spindle desuperheating and cooling device as claimed in claim 1, wherein said plurality of annular cooling shoulders are disposed on a sleeve coaxially secured to the spindle cooling section.
4. A spindle cooling device according to claim 3, wherein the spindle cooling section is connected with the sleeve by a key.
5. A spindle cooling device according to claim 2 or 3, wherein an annular oil retaining shoulder is provided on each of two axial outer sides of the annular cooling shoulders at both ends, an annular oil retaining cavity is provided on each of two outer sides of the outer housing to engage with the annular oil retaining shoulder, and a return port communicating with the annular oil retaining cavity is provided at least one end of the cooling cavity.
6. A spindle cooling device as claimed in claim 5, wherein the top end of the annular oil retaining shoulder is provided with a first boss axially outwardly, and the inner wall of the annular oil retaining cavity is provided with a second boss cooperating with the first boss.
7. The spindle cooling device according to claim 1, wherein the outer casing comprises an upper casing and a lower casing arranged in a half structure, and the upper casing and the lower casing are connected by a flange.
8. The spindle cooling device according to claim 2 or 3, wherein the outer shell is mounted on the outer periphery of the spindle cooling section through a fixing frame, and packing seals are arranged between the outer shell and the outer wall of the spindle cooling section or between the outer shell and the shaft sleeve, so that the spindle rotation is not affected, and the cooling medium is not leaked.
9. The spindle cooling device according to claim 1, wherein the spraying device comprises a liquid inlet pipe and a plurality of spraying heads connected with the liquid inlet pipe.
10. A spindle desuperheating and cooling device as claimed in claim 9, wherein a plurality of showerheads are inserted into the gap between two adjacent annular cooling shoulders, respectively.
11. The spindle cooling device according to claim 9, wherein the plurality of shower heads are connected to the liquid inlet pipe through hoses.
12. A spindle cooling device as claimed in claim 9, wherein the showerheads are connected to the inner wall of the outer housing by elastic members.
13. A spindle cooling device according to claim 1, wherein a liquid level mirror is disposed on the outer casing for observing the liquid level inside the cooling chamber.
14. A spindle cooling device as claimed in claim 1, wherein the outlet pipe is provided with a ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110870809.XA CN113482975B (en) | 2021-07-30 | 2021-07-30 | Main shaft cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110870809.XA CN113482975B (en) | 2021-07-30 | 2021-07-30 | Main shaft cooling device |
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| Publication Number | Publication Date |
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| CN113482975A true CN113482975A (en) | 2021-10-08 |
| CN113482975B CN113482975B (en) | 2022-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110870809.XA Active CN113482975B (en) | 2021-07-30 | 2021-07-30 | Main shaft cooling device |
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| CN (1) | CN113482975B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117647318A (en) * | 2024-01-30 | 2024-03-05 | 托普斯(常州)精密机械有限公司 | Cooling medium temperature monitoring equipment |
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| CN117647318B (en) * | 2024-01-30 | 2024-03-29 | 托普斯(常州)精密机械有限公司 | Cooling medium temperature monitoring equipment |
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| Publication number | Publication date |
|---|---|
| CN113482975B (en) | 2022-11-29 |
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