CN212311536U - Front end air seal mechanism of lathe spindle - Google Patents
Front end air seal mechanism of lathe spindle Download PDFInfo
- Publication number
- CN212311536U CN212311536U CN202022007594.2U CN202022007594U CN212311536U CN 212311536 U CN212311536 U CN 212311536U CN 202022007594 U CN202022007594 U CN 202022007594U CN 212311536 U CN212311536 U CN 212311536U
- Authority
- CN
- China
- Prior art keywords
- rotor
- front bearing
- air
- gap
- dirt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model discloses a front end gas seal mechanism of lathe spindle, including the water jacket, the front bearing, rear bearing and rotor, the preceding terminal surface of front bearing clamp plate is fixed with the visor, the front end of rotor passes front bearing clamp plate and visor in proper order, be formed with first clearance between rotor and the front bearing clamp plate, be formed with the second clearance between rotor and the visor, the inlet channel who is used for pouring into the air current has been seted up in the water jacket, middle air flue has been seted up in the front bearing clamp plate, inlet channel, middle air flue, first clearance and second clearance communicate in proper order, annular first gas storage tank has been seted up to the inside wall of front bearing clamp plate, annular first dirty groove of storing up has been seted up to the lateral wall of rotor, first gas storage tank aligns with first dirty groove of storing up, first dirt hole has been seted up in the front bearing clamp plate, first dirt hole is linked together with first gas storage tank. The utility model discloses can improve the dynamic balance performance of rotor, have drainage blowdown function simultaneously, help improving lathe main shaft wholeness ability and life.
Description
Technical Field
The utility model relates to a lathe especially relates to a front end atmoseal mechanism of lathe main shaft.
Background
The lathe spindle generally comprises a front bearing, a rear bearing, a rotor, a bearing pressing plate, a protective cover and the like, in the existing lathe spindle, the protective cover is generally fixed at the front end of the rotor, meanwhile, the protective cover covers the front side of the bearing pressing plate, and when the spindle runs, the rotor drives the protective cover to rotate together, so that the dynamic balance stability of the rotor is insufficient. In addition, because the bearing pressure plate, the protective cover and the rotor are provided with gaps, external water vapor and oil dirt easily enter the main shaft along the gaps, the running performance of the main shaft is influenced, the loss of the main shaft is large, and the service life of the main shaft is further influenced.
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 improve the dynamic balance performance of rotor, have drainage blowdown function simultaneously, help improving lathe spindle wholeness ability and life's front end sealing mechanism.
In order to solve the technical problem, the utility model adopts the following technical scheme.
A front end air seal mechanism of a lathe spindle comprises a water jacket, wherein a front bearing, a rear bearing and a rotor are arranged in the water jacket, the front end and the rear end of the rotor respectively penetrate through the front bearing and the rear bearing, a front bearing pressing plate is fixed on the front end face of the water jacket, a protective cover is fixed on the front end face of the front bearing pressing plate, the front end of the rotor sequentially penetrates through the front bearing pressing plate and the protective cover, a first gap is formed between the rotor and the front bearing pressing plate, a second gap is formed between the rotor and the protective cover, an air inlet channel for injecting air flow is formed in the water jacket, a middle air passage is formed in the front bearing pressing plate, the air inlet channel, the middle air passage, the first gap and the second gap are sequentially communicated, and an annular first air storage groove is formed in the inner side wall of the front bearing pressing plate, the outer side wall of the rotor is provided with a first annular dirt storage groove, the first air storage groove is aligned with the first dirt storage groove, a first dirt discharge hole is formed in the front bearing pressing plate, and the first dirt discharge hole is communicated with the first air storage groove.
Preferably, the first dirt storage groove is a groove with a right-angled triangle cross section, and the inclined inner wall of the first dirt storage groove is close to the front end of the lathe spindle.
Preferably, the first air storage groove is a groove with a square cross section.
Preferably, the inner side wall of the front bearing pressing plate is provided with two first air storage grooves which are parallel to each other, the outer side wall of the rotor is provided with two first dirt storage grooves which are parallel to each other, and the first air storage grooves are aligned with the first dirt storage grooves one to one.
Preferably, the two first air storage tanks are communicated with the first sewage draining hole.
Preferably, the air inlet passage is a Z-shaped passage, and the intermediate air passage is an inclined air passage.
Preferably, the outside cover of rotor is equipped with the pre-compaction ring, the front end of rotor is formed with the change, the pre-compaction ring clamp is located the change with between the inner ring of front bearing.
Preferably, the pre-pressing ring with a third gap is formed between the front bearing pressing plate, the third gap is communicated with the first gap, an annular second gas storage tank is arranged on the inner side wall of the front bearing pressing plate, an annular second dirt storage tank is arranged on the outer side wall of the pre-pressing ring, the second gas storage tank is aligned with the second dirt storage tank, a second dirt discharge hole is formed in the front bearing pressing plate, and the second dirt discharge hole is communicated with the second gas storage tank.
Preferably, the rear end face of the pre-pressing ring is provided with an annular matching groove, an L-shaped matching block is formed on the inner wall of the front bearing pressing plate, the matching block is clamped in the matching groove, and a gap exists between the matching block and the matching groove.
Preferably, a step opening is formed in the outer side wall of the rotor, and the inner ring end of the protective cover is located in the step opening, so that the second gap forms an L-shaped gap.
The utility model discloses an in the front end atmoseal mechanism of lathe spindle, the rotor with have the first clearance between the front bearing clamp plate, the rotor with have the second clearance between the visor, simultaneously, the inside wall of front bearing clamp plate with the lateral wall of rotor is seted up first gas receiver and the first dirt storage tank that sets up relatively respectively, and when inlet channel pours into the air current into, the air current blows outward via first clearance and second clearance in proper order, via the first dirt discharge hole outwards discharges simultaneously, wherein, the air current of first dirt discharge hole exhaust can discharge water, greasy dirt etc. between the first gas receiver with the first dirt storage tank, the air current that the second clearance outwards blew off can not only discharge water and greasy dirt in the clearance, can also form the atmoseal at the main shaft front end to prevent external filth from getting into the main shaft inside via the clearance, the spindle is stronger in waterproof and anti-fouling capacity, the service life of the spindle is greatly prolonged, and in addition, the protective cover is fixed on the front bearing pressing plate, so that the protective cover does not rotate together with the rotor, adverse effects on the dynamic balance of the rotor are avoided, the overall performance of the lathe spindle is further improved, and application requirements are well met.
Drawings
FIG. 1 is a cross-sectional view of a lathe spindle;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a partial cross-sectional view of a lathe spindle;
FIG. 4 is a first enlarged view of a portion of FIG. 3;
FIG. 5 is a second enlarged view of a portion of FIG. 3;
FIG. 6 is an exploded view of the front end seal mechanism of the lathe spindle;
FIG. 7 is a cross-sectional view of the front bearing retainer;
FIG. 8 is a cross-sectional view of the pre-compression ring;
fig. 9 is a structural view of the water jacket.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings and examples.
The utility model discloses a front end atmoseal mechanism of lathe spindle combines fig. 1 to fig. 9 to show, the lathe spindle is including water jacket 1, be equipped with front bearing 2, rear bearing 3 and rotor 4 in the water jacket 1, both ends pass respectively around the rotor 4 front bearing 2 and rear bearing 3, the preceding terminal surface of water jacket 1 is fixed with front bearing clamp plate 5, the preceding terminal surface of front bearing clamp plate 5 is fixed with visor 6, the front end of rotor 4 passes in proper order front bearing clamp plate 5 with visor 6, just rotor 4 with be formed with first clearance 40 between the front bearing clamp plate 5, rotor 4 with be formed with second clearance 41 between the visor 6, set up the inlet channel 10 that is used for pouring into the air current in the water jacket 1, middle air flue 50 has been seted up in the front bearing clamp plate 5, inlet channel 10, the middle air passage 50, the first gap 40 and the second gap 41 are sequentially communicated, an annular first air storage groove 51 is formed in the inner side wall of the front bearing pressing plate 5, an annular first dirt storage groove 42 is formed in the outer side wall of the rotor 4, the first air storage groove 51 is aligned to the first dirt storage groove 42, a first dirt discharge hole 52 is formed in the front bearing pressing plate 5, and the first dirt discharge hole 52 is communicated with the first air storage groove 51.
In the above structure, a first gap 40 is formed between the rotor 4 and the front bearing pressing plate 5, a second gap 41 is formed between the rotor 4 and the protective cover 6, and meanwhile, a first air reservoir 51 and a first dirt reservoir 42 are respectively formed on the inner side wall of the front bearing pressing plate 5 and the outer side wall of the rotor 4, which are oppositely arranged, when the air flow is injected into the air inlet passage 10, the air flow is blown outwards through the first gap 40 and the second gap 41 in sequence and is discharged outwards through the first dirt discharge hole 52, wherein the air flow discharged from the first dirt discharge hole 52 can discharge water, oil dirt and the like between the first air reservoir 51 and the first dirt reservoir 42, and the air flow blown out from the second gap 41 can discharge water and oil dirt in the gap and can also form an air seal at the front end of the main shaft, thereby preventing dirt from entering the main shaft through the gap, make the waterproof anti-soil ability of main shaft stronger, promoted the life of main shaft greatly, in addition, because visor 6 is fixed in on the front bearing clamp plate 5, consequently, visor 6 does not rotate with rotor 4 together, and then avoids causing harmful effects to the dynamic balance of rotor 4 for the wholeness ability of lathe main shaft further improves, has satisfied the application demand betterly.
In a preferred embodiment, the first dirt storage groove 42 is a groove having a right-angled triangle cross section, and the inclined inner wall of the first dirt storage groove 42 is located near the front end of the lathe spindle. The forward inclined inner wall of the first dirt storage tank 42 helps to forward conduct water and oil dirt, so that the water and oil dirt are stored, and the water and oil dirt are effectively prevented from permeating into the main shaft.
In this embodiment, the first air receiver 51 is a groove having a square cross section.
In order to further improve the water and oil collecting capability, in this embodiment, the inner side wall of the front bearing pressure plate 5 is provided with two first air storage grooves 51 which are parallel to each other, the outer side wall of the rotor 4 is provided with two first dirt storage grooves 42 which are parallel to each other, and the first air storage grooves 51 are aligned with the first dirt storage grooves 42 one by one.
Preferably, both of the first air reservoirs 51 are communicated with the first blowoff hole 52.
In order to facilitate the arrangement of the channels and the connection of the air source, in this embodiment, the air inlet channel 10 is a "Z" shaped channel, and the middle air channel 50 is an inclined air channel.
For making rotor 4 be connected more reliably with the inner ring of front bearing 2, in this embodiment, the outside cover of rotor 4 is equipped with pre-compression ring 7, the front end of rotor 4 is formed with swivel 43, pre-compression ring 7 presss from both sides and locates swivel 43 with between the inner ring of front bearing 2.
As a preferable mode, a third gap 70 is formed between the pre-pressing ring 7 and the front bearing pressing plate 5, the third gap 70 is communicated with the first gap 40, an annular second air storage tank 53 is arranged on the inner side wall of the front bearing pressing plate 5, an annular second dirt storage tank 71 is arranged on the outer side wall of the pre-pressing ring 7, the second air storage tank 53 is aligned with the second dirt storage tank 71, a second dirt discharge hole 54 is formed in the front bearing pressing plate 5, and the second dirt discharge hole 54 is communicated with the second air storage tank 53.
Among the above-mentioned structure, the preferred structure of having add a set of storage steam greasy dirt and blowdown of this embodiment for the filth of lathe main shaft is collected and discharge capacity is stronger, has further improved the wholeness ability of main shaft based on this kind of structure.
As a preferable mode, the rear end face of the pre-pressing ring 7 is provided with an annular matching groove 72, the inner wall of the front bearing pressing plate 5 is provided with an L-shaped matching block 55, the matching block 55 is clamped in the matching groove 72, and a gap is formed between the matching block and the matching groove 72. Under the insertion effect of the matching block 55 and the matching groove 72, the gap is bent for multiple times, so that the oil stain and water vapor are prevented.
In this embodiment, a stepped opening 45 is formed in an outer side wall of the rotor 4, and an inner ring end of the protective cover 6 is located in the stepped opening 45, so that the second gap 41 forms an "L" -shaped gap. Under the action of the protective cover 6 and the step opening 45, the second gap 41 is bent into an L shape, so that the air seal is formed and water and oil stains can be blocked.
In order to further improve the cooling capability of the water jacket 1, in the present embodiment. The outer side wall of the water jacket 1 is provided with a spiral cooling liquid groove 11.
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 (10)
1. A front end air seal mechanism of a lathe spindle comprises a water jacket, wherein a front bearing, a rear bearing and a rotor are arranged in the water jacket, the front end and the rear end of the rotor respectively penetrate through the front bearing and the rear bearing, and the front end and the rear end of the rotor are respectively characterized in that a front bearing pressing plate is fixed on the front end surface of the water jacket, a protective cover is fixed on the front end surface of the front bearing pressing plate, the front end of the rotor sequentially penetrates through the front bearing pressing plate and the protective cover, a first gap is formed between the rotor and the front bearing pressing plate, a second gap is formed between the rotor and the protective cover, an air inlet channel for injecting air flow is arranged in the water jacket, a middle air passage is arranged in the front bearing pressing plate, the air inlet channel, the middle air passage, the first gap and the second gap are sequentially communicated, and an annular first air storage groove is arranged on the inner side wall of the, the outer side wall of the rotor is provided with a first annular dirt storage groove, the first air storage groove is aligned with the first dirt storage groove, a first dirt discharge hole is formed in the front bearing pressing plate, and the first dirt discharge hole is communicated with the first air storage groove.
2. The front end air seal mechanism of a lathe spindle according to claim 1, wherein the first dirt storage tank is a groove having a right-angled triangle cross section, and the inclined inner wall of the first dirt storage tank is close to the front end of the lathe spindle.
3. The front end gas seal mechanism of a lathe spindle according to claim 2, wherein the first gas receiver is a groove having a square cross section.
4. The front end gas seal mechanism of a lathe spindle according to claim 3, wherein the inner side wall of the front bearing pressure plate is provided with two first gas storage grooves which are parallel to each other, the outer side wall of the rotor is provided with two first dirt storage grooves which are parallel to each other, and the first gas storage grooves are aligned with the first dirt storage grooves one by one.
5. The front end gas seal mechanism of a lathe spindle according to claim 4, wherein both of the first air reservoirs are communicated with the first blowoff hole.
6. The front end air seal mechanism of a lathe spindle according to claim 1, wherein the air inlet passage is a "Z" shaped passage, and the intermediate air passage is an inclined air passage.
7. The front end air seal mechanism of a lathe spindle according to claim 1, wherein a pre-pressing ring is sleeved on the outer side of the rotor, a rotating ring is formed at the front end of the rotor, and the pre-pressing ring is sandwiched between the rotating ring and an inner ring of the front bearing.
8. The front end gas seal mechanism of a lathe spindle according to claim 7, wherein a third gap is formed between the pre-pressing ring and the front bearing pressing plate, the third gap is communicated with the first gap, an annular second gas storage groove is formed in the inner side wall of the front bearing pressing plate, an annular second dirt storage groove is formed in the outer side wall of the pre-pressing ring, the second gas storage groove is aligned with the second dirt storage groove, a second dirt discharge hole is formed in the front bearing pressing plate, and the second dirt discharge hole is communicated with the second gas storage groove.
9. The front end air seal mechanism of a lathe spindle according to claim 7, wherein an annular matching groove is formed in the rear end face of the pre-pressing ring, an L-shaped matching block is formed on the inner wall of the front bearing pressing plate, the matching block is clamped in the matching groove, and a gap exists between the matching block and the matching groove.
10. The front end gas seal mechanism of a lathe spindle as claimed in claim 1, wherein the outer side wall of the rotor is provided with a step opening, and the inner ring end of the protective cover is positioned in the step opening, so that the second gap forms an "L" shaped gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022007594.2U CN212311536U (en) | 2020-09-14 | 2020-09-14 | Front end air seal mechanism of lathe spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022007594.2U CN212311536U (en) | 2020-09-14 | 2020-09-14 | Front end air seal mechanism of lathe spindle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212311536U true CN212311536U (en) | 2021-01-08 |
Family
ID=74016435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022007594.2U Active CN212311536U (en) | 2020-09-14 | 2020-09-14 | Front end air seal mechanism of lathe spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212311536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025395A (en) * | 2020-09-14 | 2020-12-04 | 深圳市爱贝科精密机械有限公司 | Front end air seal mechanism of lathe spindle |
-
2020
- 2020-09-14 CN CN202022007594.2U patent/CN212311536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025395A (en) * | 2020-09-14 | 2020-12-04 | 深圳市爱贝科精密机械有限公司 | Front end air seal mechanism of lathe spindle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212311536U (en) | Front end air seal mechanism of lathe spindle | |
| CN113524472B (en) | Bearing protection structure for photovoltaic section | |
| CN110975630A (en) | Formula of book film element end cover | |
| CN210908131U (en) | Processing machine tool, processing main shaft and air flue structure thereof | |
| CN112025395A (en) | Front end air seal mechanism of lathe spindle | |
| CN112555548B (en) | Center rotary joint for engineering machinery | |
| CN210397110U (en) | Roots vacuum pump lubricating structure | |
| CN214764213U (en) | Fog gun device close to foundation pit | |
| CN112377411B (en) | Liquid ring type corrosion-resistant plastic vacuum pump | |
| CN114033851A (en) | Sealed oil return structure of wind power gear box output shaft | |
| CN207229479U (en) | Type anti scuffing hydraulic chamber of sewage pump intermediary | |
| CN106438388A (en) | Anti-blocking sewage pump | |
| CN111219366A (en) | Front-end self-cleaning mechanism of mining submersible pump | |
| CN220037056U (en) | Double-end-face shaft seal double-suction pump | |
| CN220118379U (en) | Shaft seal structure for preventing water from entering bearing chamber | |
| CN219888325U (en) | Submersible sewage pump | |
| CN212536668U (en) | Pressure-reducing blow-down valve | |
| CN219011454U (en) | Siphon pipeline vacuum amplifier capable of draining water rapidly | |
| CN214660881U (en) | Axial-flow type deep-well pump | |
| CN219711803U (en) | Multistage pump | |
| CN110056504A (en) | A kind of duplex plunger pump cloth stream wiper mechanism | |
| CN217365629U (en) | Wet or dry dust catcher | |
| CN215310676U (en) | Complex foundation operating mode is with dashing ware anti-return filtration | |
| CN218434974U (en) | Portable water purifier | |
| CN213450521U (en) | Bearing box watertight fittings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| 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. |