CN210623571U - Shaft end sealing structure for steel pipe inner hole opening photoelectric main shaft - Google Patents
Shaft end sealing structure for steel pipe inner hole opening photoelectric main shaft Download PDFInfo
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- CN210623571U CN210623571U CN201921660196.1U CN201921660196U CN210623571U CN 210623571 U CN210623571 U CN 210623571U CN 201921660196 U CN201921660196 U CN 201921660196U CN 210623571 U CN210623571 U CN 210623571U
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Abstract
The utility model provides an axle head seal structure that is used for steel pipe hole to open photoelectricity main shaft, includes main shaft, shield, preceding gland, preceding interior fender lid, preceding lock nut, characterized by: the main shaft is of a stepped structure and is provided with a first step and a second step, a bearing and a sleeve are sequentially sleeved on the second step of the main shaft from inside to outside, a sleeve gas circuit is arranged on the sleeve, a front inner dustproof gasket, a front outer dustproof gasket and a sleeve are sequentially sleeved on the outer surface of the second step of the main shaft at the end part of the bearing from inside to outside, a front inner dustproof gasket annular sealing convex tooth is arranged at the connecting part of the front inner dustproof gasket and the front outer dustproof gasket, a front outer dustproof gasket annular sealing groove is arranged at the connecting part of the front outer dustproof gasket and the front inner dustproof gasket, the front inner dustproof gasket annular sealing convex tooth is embedded in the front outer dustproof gasket annular sealing groove, the front inner dustproof gasket and the front outer dustproof gasket are equal in height, and a labyrinth sealing structure is. The utility model has the characteristics of dustproof performance is good, bearing long service life, and stability is good.
Description
Technical Field
The utility model relates to the technical field of machining, specifically be a shaft end seal structure that is used for steel pipe hole to open photoelectricity main shaft.
Background
The electric spindle is also called as a motor built-in spindle and is directly driven by an internal motor without needing an external servo motor to work like the traditional mechanical spindle. The electric spindle has a compact structure, and can realize high rotating speed, high precision and high running stability.
In the process of forming the steel pipe, the inner hole needs to be polished, so that the surface smoothness is improved. In the inner hole polishing and grinding process, dust, water mist, cutting fluid, cutting impurities and the like are easy to enter the inside of the electric main shaft, and a bearing is damaged, so that the service life of the electric main shaft is seriously influenced.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned weak point to a shaft end seal structure for steel pipe hole is opened photoelectricity main shaft is provided, it is good to have dustproof performance, and bearing long service life, the good characteristics of stability.
The technical scheme of the utility model is that: the utility model provides an axle head seal structure that is used for steel pipe hole to open photoelectricity main shaft, includes main shaft, shield, preceding gland, preceding interior fender lid, preceding lock nut, characterized by: the main shaft is of a stepped structure and is provided with a first step and a second step, a bearing and a sleeve are sequentially sleeved on the second step of the main shaft from inside to outside, a sleeve gas circuit is arranged on the sleeve, a front inner dustproof gasket, a front outer dustproof gasket and a sleeve are sequentially sleeved on the outer surface of the second step of the main shaft at the end part of the bearing from inside to outside, a front inner dustproof gasket annular sealing convex tooth is arranged at the connecting part of the front inner dustproof gasket and the front outer dustproof gasket, a front outer dustproof gasket annular sealing groove is arranged at the connecting part of the front outer dustproof gasket and the front inner dustproof gasket, the front inner dustproof gasket annular sealing convex tooth is embedded in the front outer dustproof gasket annular sealing groove, the front inner dustproof gasket and the front outer dustproof gasket are equal in height to form a labyrinth sealing structure, the end surface of the front inner dustproof gasket, which is far away from the bearing, is contacted with a front locking nut, the, the front locking nut is fastened on the main shaft through threads, a front locking nut gas storage groove is formed in the excircle of the front locking nut, a front locking nut upper matching groove and a front locking nut lower matching groove are formed in the excircle of the front locking nut, a front gland is fixed on the sleeve, a front gland sealing convex tooth is arranged on the inner circle end face of the front gland, the front gland sealing convex tooth is embedded in the front locking nut lower matching groove to form a labyrinth sealing structure, a front gland is radially provided with a front gland gas circuit, the front gland gas circuit is communicated with the front locking nut gas storage groove and the sleeve gas circuit, a front inner retaining cover is fixed on the front gland, a dustproof cover is fixed on the front gland to completely block the front inner retaining cover and the front locking nut, and a thin-wall part in the front inner retaining cover is installed in the front locking nut upper matching groove of the front locking nut to form.
Furthermore, a dust cover drain groove is arranged right below the dust cover.
Furthermore, the front inner baffle cover is formed by splicing two completely equal parts, and a rear discharge groove of the front inner baffle cover and a front chip groove of the front inner baffle cover are respectively arranged below the front inner baffle cover.
The utility model has the advantages that:
1. a front gland gas circuit is radially arranged on the front gland, the front gland gas circuit is communicated with a front locking nut gas storage groove and a sleeve gas circuit, a front inner retaining cover is fixed on the front gland, a dustproof cover is fixed on the front gland, the front inner retaining cover and the front locking nut are completely retained, and an inner thin wall part of the front inner retaining cover is arranged in a matching groove on the front locking nut of the front locking nut to form a labyrinth ring with the front locking nut;
2. the end face, far away from the bearing, of the front inner dustproof gasket is in contact with a front locking nut, the end face, far away from the bearing, of the front outer dustproof gasket is in contact with a front gland, the front locking nut is fastened on a main shaft through threads, a front locking nut gas storage groove, a front locking nut upper matching groove and a front locking nut lower matching groove are formed in the outer circle of the front locking nut, the front gland is fixed on a sleeve, a front gland sealing convex tooth is arranged on the end face of the inner circle of the front gland, and the front gland sealing convex tooth is embedded in the front locking nut lower matching groove to form a labyrinth sealing structure;
3. the outer dustproof gasket annular seal groove is arranged at the joint of the front inner dustproof gasket and the front outer dustproof gasket, the front inner dustproof gasket annular seal convex tooth is embedded in the front outer dustproof gasket annular seal groove, the front inner dustproof gasket and the front outer dustproof gasket are equal in height, a labyrinth seal structure is formed, impurities which finally possibly enter the main shaft are blocked, and the bearing is good in dustproof performance, long in service life and good in stability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In FIG. 1, 1-spindle, 11-first step, 12-second step, 2-dust cap, 21-dust cap groove, 3-front gland, 31-front gland gas passage, 32-front gland groove, 33-front gland seal tooth, 4-front inner shield, 41-front inner shield rear groove, 42-front inner shield front chip groove, 5-front locknut, 51-front locknut gas groove, 52-front locknut upper mating groove, 53-front locknut lower mating groove, 6-front outer dust gasket, 61-front outer dust gasket annular seal groove, 7-front inner dust gasket, 71-front inner dust gasket annular seal tooth, 8-bearing, 9-sleeve, 91-sleeve gas passage.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, the utility model relates to a shaft end seal structure for steel pipe hole is opened photoelectricity main shaft, including main shaft 1, shield 2, preceding gland 3, preceding interior fender lid 4, preceding lock nut 5, characterized by: the main shaft 1 is of a stepped structure and is provided with a first step 11 and a second step 12, a bearing 8 and a sleeve 9 are sequentially sleeved on the second step 12 of the main shaft 1 from inside to outside, a sleeve gas path 91 is arranged on the sleeve 9, a front inner dustproof gasket 7, a front outer dustproof gasket 6 and a sleeve 9 are sequentially sleeved on the outer surface of the second step 12 of the main shaft 1 at the end part of the bearing 8 from inside to outside, a front inner dustproof gasket annular sealing convex tooth 71 is arranged at the joint of the front inner dustproof gasket 7 and the front outer dustproof gasket 6, a front outer dustproof gasket annular sealing groove 61 is arranged at the joint of the front outer dustproof gasket 6 and the front inner dustproof gasket 7, the front inner dustproof gasket annular sealing convex tooth 71 is embedded in the front outer dustproof gasket annular sealing groove 61, the front inner dustproof gasket 7 and the front outer dustproof gasket 6 are equal in height to form a labyrinth sealing structure, the end surface of the front inner dustproof gasket 7, which is far away from the bearing 8, the end surface of the front outer dustproof gasket 6 far away from the bearing 8 is contacted with the front gland 3, the front locking nut 5 is fastened on the main shaft 1 through threads, the excircle of the front locking nut 5 is provided with a front locking nut gas storage groove 51, a front locking nut upper matching groove 52 and a front locking nut lower matching groove 53, the front gland 3 is fixed on the sleeve 9, the inner circle end surface of the front gland 3 is provided with a front gland sealing convex tooth 33, the front gland sealing convex tooth 33 is embedded in the front locking nut lower matching groove 53 to form a labyrinth sealing structure, the front gland 3 is radially provided with a front gland gas path 31, the front gland gas path 31 is communicated with the front locking nut gas storage groove 51 and the sleeve gas path 91, the front inner baffle 4 is fixed on the front gland 3, the dustproof cover 2 is fixed on the front gland 3 to completely block the front inner baffle 4 and the front locking nut 5, the inner thin-wall part of the front inner baffle 4 is arranged in the front locking nut upper matching groove 52 of the front, forming a labyrinth ring with the front lock nut 5.
And a dust cover drain groove 21 is arranged under the dust cover 2.
The front inner shield cover 4 is formed by splicing two completely equal parts, and a front inner shield cover rear discharge groove 41 and a front inner shield cover front discharge groove 42 are respectively arranged below the front inner shield cover 4.
The utility model discloses a theory of operation does:
in the first layer of sealing mode, a front gland air passage 31 is radially arranged on a front gland 3, the front gland air passage 31 is communicated with a front lock nut air storage groove 51 and a sleeve air passage 91, a front inner retaining cover 4 is fixed on the front gland 3, a dust cover 2 is fixed on the front gland 3, the front inner retaining cover 4 and a front lock nut 5 are completely retained, and a thin wall part in the front inner retaining cover 4 is installed in a matching groove 52 on the front lock nut of the front lock nut 5 to form a labyrinth ring with the front lock nut 5.
The second layer of sealing form, the terminal surface that bearing 8 was kept away from to preceding interior dustproof gasket 7 contacts with preceding lock nut 5, the terminal surface that bearing 8 was kept away from to preceding outer dustproof gasket 6 contacts with preceding gland 3, preceding lock nut 5 passes through the screw fastening on main shaft 1, preceding lock nut 5 excircle is equipped with preceding lock nut gas storage tank 51, pair groove 52 on the preceding lock nut, pair groove 53 under the preceding lock nut, preceding gland 3 is fixed on sleeve 9, the round terminal surface is equipped with preceding gland seal dogtooth 33 in the preceding gland 3, preceding gland seal dogtooth 33 inlays and mates under the preceding lock nut in 53, form labyrinth seal structure.
The outer surface of a second step 12 of the end part spindle 1 of the bearing 8 is sequentially sleeved with a front inner dustproof gasket 7, a front outer dustproof gasket 6 and a sleeve 9 from inside to outside, a front inner dustproof gasket annular sealing convex tooth 71 is arranged at the joint of the front inner dustproof gasket 7 and the front outer dustproof gasket 6, a front outer dustproof gasket annular sealing groove 61 is arranged at the joint of the front outer dustproof gasket 6 and the front inner dustproof gasket 7, the front inner dustproof gasket annular sealing convex tooth 71 is embedded in the front outer dustproof gasket annular sealing groove 61, the front inner dustproof gasket 7 and the front outer dustproof gasket 6 are equal in height, a labyrinth sealing structure is formed, and impurities which can finally enter the spindle 1 are blocked.
The utility model discloses a working process does:
the compressed air enters the front locknut air storage groove 51 between the front locknut 5 and the front gland 3 from the sleeve air passage 91 and the front gland air passage 31. Compressed air flows outwards from the front locking nut air storage groove 51 to the matching groove 52 on the front locking nut, most of the air flows out from the gap between the front locking nut 5 and the front inner retaining cover 4 to the gap between the dust cover 2 and the front locking nut 5 and then flows out of the main shaft, the internal air pressure stably flows outwards, positive pressure is formed outwards, and impurities are prevented from entering. And a small part of gas flows out from the front inner shield cover front chip groove 42, the front inner shield cover rear chip groove 41 and the dust cover drain groove 21 to take away the impurities of which the minimum part enters the dust cover 2.
Claims (3)
1. The utility model provides a shaft end seal structure that is used for steel pipe hole to open photoelectricity main shaft, includes main shaft (1), shield (2), preceding gland (3), preceding interior fender lid (4), preceding lock nut (5), characterized by: the main shaft (1) is of a stepped structure and is provided with a first step (11) and a second step (12), a bearing (8) and a sleeve (9) are sequentially sleeved on the second step (12) of the main shaft (1) from inside to outside, a sleeve gas circuit (91) is arranged on the sleeve (9), a front inner dustproof gasket (7), a front outer dustproof gasket (6) and a sleeve (9) are sequentially sleeved on the outer surface of the second step (12) of the main shaft (1) at the end part of the bearing (8) from inside to outside, a front inner dustproof gasket annular sealing convex tooth (71) is arranged at the connecting part of the front inner dustproof gasket (7) and the front outer dustproof gasket (6), a front outer dustproof gasket annular sealing groove (61) is arranged at the connecting part of the front outer dustproof gasket (6) and the front inner dustproof gasket (7), and the front inner dustproof gasket annular sealing convex tooth (71) is embedded in the front outer dustproof gasket annular sealing groove (61), the front inner dustproof gasket (7) and the front outer dustproof gasket (6) are equal in height to form a labyrinth seal structure, the end face, far away from the bearing (8), of the front inner dustproof gasket (7) is in contact with the front locking nut (5), the end face, far away from the bearing (8), of the front outer dustproof gasket (6) is in contact with the front gland (3), the front locking nut (5) is fastened on the spindle (1) through threads, the outer circle of the front locking nut (5) is provided with a front locking nut air storage groove (51), a front locking nut upper matching groove (52) and a front locking nut lower matching groove (53), the front gland (3) is fixed on the sleeve (9), the inner circle end face of the front gland (3) is provided with a front gland seal convex tooth (33), the front gland seal convex tooth (33) is embedded in the front locking nut lower matching groove (53) to form a labyrinth seal structure, the front gland (3) is radially provided with a front gland air, preceding gland gas circuit (31) and preceding lock nut gas storage tank (51), sleeve gas circuit (91) intercommunication, preceding interior fender lid (4) are fixed in the front on gland (3), shield (2) are fixed in the front on gland (3), keep off preceding interior fender lid (4), preceding lock nut (5) completely, and the thin wall part is installed in preceding interior fender lid (4) and is mated in groove (52) on the preceding lock nut of preceding lock nut (5), forms the labyrinth ring with preceding lock nut (5).
2. The shaft end sealing structure for the steel pipe inner hole photoelectric spindle according to claim 1, characterized in that: a dust cover drain groove (21) is arranged under the dust cover (2).
3. The shaft end sealing structure for the steel pipe inner hole photoelectric spindle according to claim 1, characterized in that: the front inner baffle cover (4) is formed by splicing two completely equal parts, and a front inner baffle cover rear discharge groove (41) and a front inner baffle cover front chip groove (42) are respectively arranged below the front inner baffle cover rear discharge groove and the front inner baffle cover front chip groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921660196.1U CN210623571U (en) | 2019-10-04 | 2019-10-04 | Shaft end sealing structure for steel pipe inner hole opening photoelectric main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921660196.1U CN210623571U (en) | 2019-10-04 | 2019-10-04 | Shaft end sealing structure for steel pipe inner hole opening photoelectric main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210623571U true CN210623571U (en) | 2020-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921660196.1U Active CN210623571U (en) | 2019-10-04 | 2019-10-04 | Shaft end sealing structure for steel pipe inner hole opening photoelectric main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210623571U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310456A (en) * | 2022-02-10 | 2022-04-12 | 无锡阳光精机股份有限公司 | Magnetic material cutting main shaft end protection structure |
| CN114474438A (en) * | 2022-02-10 | 2022-05-13 | 无锡阳光精机股份有限公司 | High-bearing high-rotating-speed magnetic material cutting spindle box |
-
2019
- 2019-10-04 CN CN201921660196.1U patent/CN210623571U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114310456A (en) * | 2022-02-10 | 2022-04-12 | 无锡阳光精机股份有限公司 | Magnetic material cutting main shaft end protection structure |
| CN114474438A (en) * | 2022-02-10 | 2022-05-13 | 无锡阳光精机股份有限公司 | High-bearing high-rotating-speed magnetic material cutting spindle box |
| CN114310456B (en) * | 2022-02-10 | 2023-08-11 | 无锡阳光精机股份有限公司 | Magnetic material cutting main shaft axle head protective structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 214000 workshop, building B, No. 220, Chengnan Road, Xinwu District, Wuxi City, Jiangsu Province Patentee after: Wuxi sunshine Precision Machinery Co.,Ltd. Address before: 214100 room 2, zone B, Qinglongshan Industrial Park, No. 128, Qinglongshan, Wuxi, Jiangsu Patentee before: WUXI SUNSHINE PRECISION MACHINERY CO.,LTD. |
|
| CP03 | Change of name, title or address |