CN203774951U - Water-through sealing structure of hollow rotating shaft - Google Patents
Water-through sealing structure of hollow rotating shaft Download PDFInfo
- Publication number
- CN203774951U CN203774951U CN201420022062.8U CN201420022062U CN203774951U CN 203774951 U CN203774951 U CN 203774951U CN 201420022062 U CN201420022062 U CN 201420022062U CN 203774951 U CN203774951 U CN 203774951U
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- China
- Prior art keywords
- rotating shaft
- hollow rotating
- water
- water flowing
- inner sleeve
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- Expired - Fee Related
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Abstract
The utility model relates to a water-through sealing structure of a hollow rotating shaft, and belongs to the technical field of an electric main shaft. The water-through sealing structure comprises a shell body (1), a hollow rotating shaft (4), a bearing (3), a water-through sealing device and an end cover (2), wherein the hollow rotating shaft (4) is arranged inside the shell body (1), a stator (18), a rotor (19) and a coil (20) are arranged between the hollow rotating shaft (4) and the shell body (1), the bearing (3) is arranged on the exterior of one end of the hollow rotating shaft (4), the end cover (2) is arranged at the rear part of one end of the shell body (1), and the water-through sealing device passes through the middle part of the end cover (2) and is arranged in the hollow part of one end of the hollow rotating shaft (4). The water-through sealing structure is simple in structure, ensures the normal operational performance during the operation of the electric main shaft, prevents the damage caused by water in the bearing or the stator, and effectively improves the working efficiency.
Description
[technical field]the utility model belongs to electric spindle technology field, especially relates to a kind of water flowing hermetically-sealed construction of electric main shaft hollow rotating shaft.
[background technology]
Known, because the actual needs of work, sometimes can in the hollow shaft rotating shaft of electric main shaft, do water flowing work, electricity main shaft in the running, the current that have small part flow to the inside of electric main shaft from the water inlet of electric main shaft hollow rotating shaft, will cause the short circuit of stator line bag, not only can destroy the lubricating condition of bearing and heat up rapidly, also can burn stator and bearing, not only can affect normal work, and can cause scrapping of electric main shaft, in order to ensure the normal work of electric main shaft, just need to turn logical water to electric main shaft hollow shaft and seal.
[summary of the invention]
In order to overcome the deficiency in background technology, the utility model discloses a kind of water flowing hermetically-sealed construction of hollow rotating shaft, can in the time of electric spindle operation, prevent that current from entering bearing or stator and the damage that causes effectively raises operating efficiency.
In order to realize the object of foregoing invention, the utility model adopts following technical scheme:
A kind of water flowing hermetically-sealed construction of hollow rotating shaft, comprise housing, hollow rotating shaft, bearing, water flowing sealing device and end cap, inside at housing is provided with hollow rotating shaft, between hollow rotating shaft and housing, be provided with stator, rotor and line bag, outside, one end at hollow rotating shaft is provided with bearing, described end cap is arranged on the rear portion, one end of housing, and described water flowing sealing device is arranged in hollow rotating shaft one end hollow through the middle part of end cap.
The water flowing hermetically-sealed construction of described hollow rotating shaft, described water flowing sealing device comprises joint, breather pipe, water service pipe, sleeve and inner sleeve, one end of described water service pipe is arranged in hollow rotating shaft one end hollow through end cap middle part, a side outside at water service pipe is provided with inner sleeve, outside in inner sleeve is provided with sleeve, one end of described breather pipe is fixedly connected with inner sleeve by joint, the external gases at high pressure of the other end of breather pipe.
The water flowing hermetically-sealed construction of described hollow rotating shaft, on the outer edge surface of the middle part of inner sleeve, be provided with necking segment, on a side end face of necking segment, be laid with plurality of through holes, the joint silk that is provided with a screwed hole and breather pipe on necking segment opposite side end face connects, and is provided with the endoporus A of break-through water pipe at the middle part of inner sleeve.
The water flowing hermetically-sealed construction of described hollow rotating shaft is set in endoporus B in the middle part of sleeve is provided with endoporus B, is described.
The water flowing hermetically-sealed construction of described hollow rotating shaft, described through hole is set at least individual.
The water flowing hermetically-sealed construction of described hollow rotating shaft, described through hole is circular hole or slotted hole.
The water flowing hermetically-sealed construction of described hollow rotating shaft, is provided with drip in the bottom of housing, and described drip is corresponding up and down with the water inlet of hollow rotating shaft, is provided with the drainage pipe through end cap in a side of drip.
Owing to adopting technique scheme, the utlity model has following beneficial effect:
The water flowing hermetically-sealed construction of hollow rotating shaft described in the utility model, the water flowing hermetically-sealed construction of described hollow rotating shaft arranges water service pipe by the middle part, one end at hollow rotating shaft, the inner sleeve being connected with breather pipe in a side outer setting of water service pipe, gases at high pressure in breather pipe are sprayed in the endoporus A of inner sleeve, utilize the gases at high pressure shutoff attempt of ejection to flow to the current of electric main shaft inside; The utility model is simple in structure, has ensured normal behavior in service in the time of the running of electric main shaft, has not only prevented that current from entering bearing or stator and the damage that causes, and has effectively raised operating efficiency.
[brief description of the drawings]
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the cooperation schematic diagram of the utility model sleeve and inner sleeve;
Fig. 3 is the structural representation of the utility model inner sleeve;
Fig. 4 is the structural representation of the utility model sleeve;
In the drawings: 1, housing; 2, end cap; 3, bearing; 4, electric main shaft; 5, joint; 6, breather pipe; 7, water service pipe; 8, water stream channel; 9, sleeve; 10, drainage pipe; 11, drip; 12, screwed hole; 13, inner sleeve; 14, endoporus A; 15, necking segment; 16, through hole; 17, endoporus B; 18, stator; 19, rotor; 20, line bag; 21, a side end face; 22, opposite side end face.
[embodiment]
Can explain in more detail the utility model by the following examples, open the purpose of this utility model is intended to protect all changes and improvements within the scope of the utility model, and the utility model is not limited to the following examples:
The water flowing hermetically-sealed construction of the hollow rotating shaft described in 1 by reference to the accompanying drawings, comprise housing 1, hollow rotating shaft 4, bearing 3, water flowing sealing device and end cap 2, be provided with hollow rotating shaft 4 in the inside of housing 1, between hollow rotating shaft 4 and housing 1, be provided with stator 18, rotor 19 and line bag 20, outside, one end at hollow rotating shaft 4 is provided with bearing 3, described end cap 2 is arranged on the rear portion, one end of housing 1, be provided with drip 11 in the bottom of housing 1, the opening of described drip 11 is corresponding up and down with the water inlet of hollow rotating shaft 4, is provided with the drainage pipe 10 through end cap 2 in a side of drip 11; Described water flowing sealing device is arranged in hollow rotating shaft 4 middle parts, one end hollow through the middle part of end cap 2; Described water flowing sealing device comprises joint 5, breather pipe 6, water service pipe 7, sleeve 9 and inner sleeve 13, one end of described water service pipe 7 is arranged in hollow rotating shaft 4 one end middle parts hollow through end cap 2 middle parts, a side outside at water service pipe 7 is provided with inner sleeve 13, on the outer edge surface of the middle part of inner sleeve 13, be provided with necking segment 15, on a side end face 21 of necking segment 15, be laid with plurality of through holes 16, described through hole 16 is set at least 4, and described through hole 16 is circular hole or slotted hole; On necking segment 15 opposite side end faces 22, be provided with a screwed hole 12 and connect with 5 of the joints of breather pipe 6, be provided with the endoporus A14 of break-through water pipe 7 at the middle part of inner sleeve 13; Be provided with sleeve 9 in the outside of inner sleeve 13, be provided with endoporus B 17 at the middle part of sleeve 9, described inner sleeve 13 is arranged in endoporus B 17; One end of described breather pipe 6 is fixedly connected with inner sleeve 13 by joint 5, the external gases at high pressure of the other end of breather pipe 6.
Implement the water flowing hermetically-sealed construction of hollow rotating shaft described in the utility model, in use, by one end of water service pipe 7 from being inserted into the inside of hollow rotating shaft 4 in the hole at end cap 2 middle parts, the other end of water service pipe 7 is fixedly connected with the water pipe that is arranged on end cap 2 outsides, a side outside at water service pipe 7 has been provided with inner sleeve 13, be provided with the sleeve 9 of sealing in the outside of inner sleeve 13, one end of breather pipe 6 is connected with the screwed hole 12 in inner sleeve 13 by joint 5, the other end of breather pipe 6 is communicated with gases at high pressure, connect after water pipe at water service pipe 7, current flow into the inside of hollow rotating shaft 4 from the water stream channel 8 in water service pipe 7, in order to prevent that current from flowing on stator or bearing, breather pipe 6 is connected to gases at high pressure, gases at high pressure are entered in screwed hole 12, flow into necking segment 15 positions of inner sleeve 13, make the plurality of through holes 16 interior ejection of gases at high pressure from a side end face 21, make the gases at high pressure of ejection rush at the current that water service pipe 7 flows out, thereby shutoff attempt flow on electric main shaft inner current, in the time that electric main shaft stops operating work, may have a small amount of remaining water in hollow rotating shaft 4, in order to have prevented that current from flowing on stator or bearing, be provided with drip 11 in the bottom of housing 1, described drip 11 is arranged on the transferring of water inlet of hollow rotating shaft 4, be used for the water droplet that access flows out from the water inlet of hollow rotating shaft 4, one side of drip 11 is provided with drainage pipe 10, by drainage pipe 10, the water in drip 11 is discharged, the utility model is simple in structure, has ensured normal behavior in service in the time of the running of electric main shaft, has not only prevented that current from entering bearing or stator and the damage that causes, and has effectively raised operating efficiency.
The embodiment selecting in this article for open the purpose of this utility model, current think suitable, but will be appreciated that, the utility model is intended to comprise that all belong to all changes and the improvement of the embodiment within the scope of this design and the utility model.
Claims (7)
1. the water flowing hermetically-sealed construction of a hollow rotating shaft, comprise housing (1), hollow rotating shaft (4), bearing (3), water flowing sealing device and end cap (2), be provided with hollow rotating shaft (4) in the inside of housing (1), between hollow rotating shaft (4) and housing (1), be provided with stator (18), rotor (19) and line bag (20), be provided with bearing (3) in the outside, one end of hollow rotating shaft (4), it is characterized in that: described end cap (2) is arranged on the rear portion, one end of housing (1), described water flowing sealing device is arranged in hollow rotating shaft (4) one end hollow through the middle part of end cap (2).
2. the water flowing hermetically-sealed construction of hollow rotating shaft according to claim 1, it is characterized in that: described water flowing sealing device comprises joint (5), breather pipe (6), water service pipe (7), sleeve (9) and inner sleeve (13), one end of described water service pipe (7) is arranged in hollow rotating shaft (4) one end hollow through end cap (2) middle part, a side outside at water service pipe (7) is provided with inner sleeve (13), be provided with sleeve (9) in the outside of inner sleeve (13), one end of described breather pipe (6) is fixedly connected with inner sleeve (13) by joint (5), the external gases at high pressure of the other end of breather pipe (6).
3. the water flowing hermetically-sealed construction of hollow rotating shaft according to claim 2, it is characterized in that: on the middle part outer edge surface of inner sleeve (13), be provided with necking segment (15), on a side end face (21) of necking segment (15), be laid with plurality of through holes (16), on necking segment (15) opposite side end face (22), be provided with a screwed hole (12) and connect with joint (5) silk of breather pipe (6), be provided with the endoporus A(14 of break-through water pipe (7) at the middle part of inner sleeve (13)).
4. the water flowing hermetically-sealed construction of hollow rotating shaft according to claim 2, is characterized in that: the middle part at sleeve (9) is provided with endoporus B(17), described inner sleeve (13) is arranged in endoporus B (17).
5. the water flowing hermetically-sealed construction of hollow rotating shaft according to claim 3, is characterized in that: described through hole (16) is set at least 4.
6. the water flowing hermetically-sealed construction of hollow rotating shaft according to claim 3, is characterized in that: described through hole (16) is circular hole or slotted hole.
7. the water flowing hermetically-sealed construction of hollow rotating shaft according to claim 1, it is characterized in that: be provided with drip (11) in the bottom of housing (1), described drip (11) is corresponding up and down with the water inlet of hollow rotating shaft (4), is provided with the drainage pipe (10) through end cap (2) in a side of drip (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420022062.8U CN203774951U (en) | 2014-01-15 | 2014-01-15 | Water-through sealing structure of hollow rotating shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420022062.8U CN203774951U (en) | 2014-01-15 | 2014-01-15 | Water-through sealing structure of hollow rotating shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774951U true CN203774951U (en) | 2014-08-13 |
Family
ID=51292100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420022062.8U Expired - Fee Related CN203774951U (en) | 2014-01-15 | 2014-01-15 | Water-through sealing structure of hollow rotating shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774951U (en) |
-
2014
- 2014-01-15 CN CN201420022062.8U patent/CN203774951U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180509 Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan Patentee after: LUOYANG BEARING RESEARCH INSTITUTE Co.,Ltd. Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan. Patentee before: LUOYANG BEARING SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20220115 |