CN205600507U - Pneumatic oil film static pressure bistrique - Google Patents
Pneumatic oil film static pressure bistrique Download PDFInfo
- Publication number
- CN205600507U CN205600507U CN201620163916.3U CN201620163916U CN205600507U CN 205600507 U CN205600507 U CN 205600507U CN 201620163916 U CN201620163916 U CN 201620163916U CN 205600507 U CN205600507 U CN 205600507U
- Authority
- CN
- China
- Prior art keywords
- static pressure
- end cap
- main shaft
- oil film
- connecting plate
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a pneumatic oil film static pressure bistrique, static pressure subassembly include static pressure impeller, static pressure piece and static pressure circle, the static pressure impeller is formed by central sleeve pipe and annular lasso integration processing, center cover pipe box is located on the main shaft, the annular lasso is formed by connecting through the connecting plate interior ring sum outer loop, and the inner ring is fixed in on the central sleeve pipe, the static pressure piece is the annular block column structure, sets in second end cover or mounting flange one side and connecting plate bottom surface contact, the static pressure impeller outside, internal surface and outer loop contact are located to the static pressure snare, the arc via hole that a plurality of cuts off is being offered with the inner ring junction to the connecting plate, and connects neat side to the arc via hole for the arc structure, and the arcwall face is towards static pressure piece orientation, outer loop and static pressure circle contact surface are linked up in proper order by a plurality of groups cell type blade and form, and every group cell type blade is linked up to make up by a radial sunken notch and a radial projecting's blade arc and forms. No bearing zero friction, the low energy consumption.
Description
Technical field
The utility model discloses kind of a pneumatic oil film static pressure high-speed grinding head, be requisite main mill plunger in processing industry.
Background technology
High-speed electric main shaft most of oil fog cooling main shaft especially used in bearing machining industry in industry at present, location uses angular contact bearing.Weak point, first contaminated with oil mist working environment is unfavorable for environmental protection, its two employings angular contact bearing ultrahigh rotating speed runs into bottleneck, when running up, the centrifugal force of steel ball is the biggest, it is directly proportional to frictional force, frictional force increases and causes Ball Mill to undermine the produced high temperature of friction to reduce service life, and repair and replacement are frequent.
Having static pressure electric main shaft and these two kinds of products of High Speed Pneumatic Grinding Head in the market, cost is high, and processing technique is complicated, need to arrange in pairs or groups Hydraulic Station and air compressor could use, and energy consumption is high, does not has environment, price height, and most of manufacturer is to hang back.And High Speed Pneumatic Grinding Head is because in structure and processing technique currently without the bottlenecks breaking through 30000 rotations and air consumption big (loss of gas is not directly proportional to rotating speed greatly) and a lot of problems such as noise is big.
Summary of the invention
The utility model discloses a kind of pneumatic oil film static grinding head, bearing-free is without friction, and processing technology is convenient, low energy consumption, and safety and environmental protection is reliable, it is not necessary to extra hydraulic means and source of the gas, and noise is less than 55dB, manufacturing cost sold by existing market 1/10th.
The technical solution of the utility model is: a kind of pneumatic oil film static grinding head, including main shaft, two the first end caps being relatively sheathed on main shaft, it is provided with static pressure assembly outside two the first end caps, a set of static pressure assembly is fixed on the first end cap by the second end cap, and another set of static pressure assembly is fixed on the first end cap by mounting flange；
Described static pressure assembly includes static pressure impeller, static pressure block and static pressure circle；Described static pressure impeller is processed by center sleeve and annular collar integration, and described center sleeve is sheathed on main shaft, and described annular collar is formed by connecting by connecting plate by internal ring and outer shroud, and internal ring is fixed on center sleeve；Described static pressure block is annular block structure, is embedded in the second end cap or mounting flange, and one side contacts with connecting plate bottom surface；Described static pressure snare is located at outside static pressure impeller, and inner surface contacts with outer shroud；Static pressure impeller internal oil chamber is formed between static pressure impeller and the first end cap；
Described connecting plate is offering several arc vias cut off with internal ring junction, and connecting plate just side to arc via is arcuate structure, and arcwall face is towards static pressure Block direction；Described outer shroud and static pressure circle contact surface are connected by some groups of grooved blade order and form, and often group grooved blade is combined by notch and a radially projecting blade arc linking of a radial depressions.
Further, on the main shaft outside described mounting flange, order is provided with interior aeroscopic plate 9 and outer aeroscopic plate, forms the cavity of hollow, be provided with wind wheel in cavity between interior aeroscopic plate and outer aeroscopic plate；Uniformly offering several vias on outer aeroscopic plate and be connected to the cavity of hollow, via connects compressed air by gas-tpe fitting；Opening hole with via relative to place on interior aeroscopic plate, through hole extends to outside through interior aeroscopic plate and outer aeroscopic plate so that form air channel between each via and through hole on the other side.
Further, described main shaft is hollow structure.Utilize air to flow, form electric motor cooling duct, good cooling results.
Further, it is provided with dust ring between said two the first end cap.Safety and environmental protection is reliable.
Further, it is provided with oilless bearing between described second end cap and main shaft.
The beneficial effects of the utility model are: according to peace fluid mechanics principle, and compressed air is refluxed through wind wheel by afterbody (a point), drive main shaft to rotate.Produce pressure differential when high speed rotating, by oil toward radially projecting direction blade compression, form oil film or lubricating pad so that main shaft radial suspension, center rotating speed is the highest, and stability and rigidity are the best.Meanwhile, produce pressure differential when high speed rotating, by oil toward connecting plate towards static pressure block one side compression, static pressure impeller is made axial thrust.This pneumatic oil film static grinding head, bearing-free is without friction, and processing technology is convenient, low energy consumption, and safety and environmental protection is reliable, it is not necessary to extra hydraulic means and source of the gas, and noise is less than 55dB, manufacturing cost sold by existing market 1/10th.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the sectional view in A-A direction in Fig. 1；
Fig. 3 is the enlarged drawing of I in Fig. 2；
Fig. 4 is the curve relation figure between center of the present utility model rotating speed and rigidity or rigidity.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
As shown in Figure 1, a kind of pneumatic oil film static grinding head, including main shaft 1, two the first end caps 7 being relatively sheathed on main shaft, it is provided with static pressure assembly outside two the first end caps 7, a set of static pressure assembly is fixed on the first end cap 2 by the second end cap 2, and another set of static pressure assembly is fixed on the first end cap by mounting flange 15.Described static pressure assembly includes static pressure impeller 5, static pressure block 4 and static pressure circle 6；Described static pressure impeller 5 is processed by center sleeve and annular collar integration, and described center sleeve is sheathed on main shaft, and described annular collar is formed by connecting by connecting plate by internal ring and outer shroud, and internal ring is fixed on center sleeve；Described static pressure block 4 is annular block structure, is embedded in the second end cap or mounting flange, and one side contacts with connecting plate bottom surface；Described static pressure circle 6 is sheathed on outside static pressure impeller 5, and inner surface contacts with outer shroud；Static pressure impeller internal oil chamber 10 is formed between static pressure impeller 5 and the first end cap 7.
As in figure 2 it is shown, described connecting plate is offering several arc vias cut off with internal ring junction, and connecting plate just side to arc via is arcuate structure, and arcwall face is towards static pressure Block direction；Described outer shroud and static pressure circle contact surface are connected by some groups of grooved blade order and form, and often group grooved blade is combined by notch and a radially projecting blade arc linking of a radial depressions.According to peace fluid mechanics principle, compressed air is refluxed through wind wheel by afterbody a point, drives main shaft to rotate.Produce pressure differential when high speed rotating, oil is compressed the direction of arrow shown in Fig. 3 toward radially projecting direction blade, form oil film or lubricating pad so that main shaft radial suspension, center rotating speed is the highest, and stability and rigidity are the best, as shown in Figure 4.Meanwhile, produce pressure differential when high speed rotating, by oil toward connecting plate towards static pressure block one side compression, static pressure impeller is made axial thrust.This pneumatic oil film static grinding head, bearing-free is without friction, and processing technology is convenient, low energy consumption, and safety and environmental protection is reliable, it is not necessary to extra hydraulic means and source of the gas, and noise is less than 55dB, manufacturing cost sold by existing market 1/10th.
As it is shown in figure 1, described main shaft 1 is hollow structure.Utilize air to flow, form electric motor cooling duct, good cooling results.As preferred embodiment, between said two the first end cap 7, it is provided with dust ring 8.Safety and environmental protection is reliable.It is provided with oilless bearing 3 between described second end cap 2 and main shaft.
Although this utility model is disclosed above with preferred embodiment, so it is not limited to this utility model.This utility model art tool usually intellectual, without departing from spirit and scope of the present utility model, when various modifications may be made and retouching.Therefore, protection domain of the present utility model, when being as the criterion depending on those as defined in claim.
Claims (5)
1. a pneumatic oil film static grinding head, including main shaft (1), two the first end caps (7) being relatively sheathed on main shaft, it is characterized in that, two the first end cap (7) outsides are provided with static pressure assembly, a set of static pressure assembly is fixed on the first end cap (2) by the second end cap (2), and another set of static pressure assembly is fixed on the first end cap by mounting flange (15)；
Described static pressure assembly includes static pressure impeller (5), static pressure block (4) and static pressure circle (6)；Described static pressure impeller (5) is processed by center sleeve and annular collar integration, and described center sleeve is sheathed on main shaft, and described annular collar is formed by connecting by connecting plate by internal ring and outer shroud, and internal ring is fixed on center sleeve；Described static pressure block (4) is annular block structure, is embedded in the second end cap or mounting flange, and one side contacts with connecting plate bottom surface；Described static pressure circle (6) is sheathed on static pressure impeller (5) outside, and inner surface contacts with outer shroud；Static pressure impeller internal oil chamber (10) is formed between static pressure impeller (5) and the first end cap (7)；
Described connecting plate is offering several arc vias cut off with internal ring junction, and connecting plate just side to arc via is arcuate structure, and arcwall face is towards static pressure Block direction；Described outer shroud and static pressure circle contact surface are connected by some groups of grooved blade order and form, and often group grooved blade is combined by notch and a radially projecting blade arc linking of a radial depressions.
One the most according to claim 1 pneumatic oil film static grinding head, it is characterized in that, on the main shaft in described mounting flange (15) outside, order is provided with interior aeroscopic plate (9) and outer aeroscopic plate (13), form the cavity of hollow between interior aeroscopic plate and outer aeroscopic plate, wind wheel (11) is installed in cavity；Uniformly offering several vias on outer aeroscopic plate and be connected to the cavity of hollow, via connects compressed air by gas-tpe fitting (12)；Opening hole with via relative to place on interior aeroscopic plate, through hole extends to outside through interior aeroscopic plate and outer aeroscopic plate so that form air channel (14) between each via and through hole on the other side.
One the most according to claim 1 pneumatic oil film static grinding head, it is characterised in that described main shaft (1) is hollow structure.
One the most according to claim 1 pneumatic oil film static grinding head, it is characterised in that be provided with dust ring (8) between said two the first end cap (7).
One the most according to claim 1 pneumatic oil film static grinding head, it is characterised in that be provided with oilless bearing (3) between described second end cap (2) and main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620163916.3U CN205600507U (en) | 2016-03-03 | 2016-03-03 | Pneumatic oil film static pressure bistrique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620163916.3U CN205600507U (en) | 2016-03-03 | 2016-03-03 | Pneumatic oil film static pressure bistrique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205600507U true CN205600507U (en) | 2016-09-28 |
Family
ID=56962606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620163916.3U Active CN205600507U (en) | 2016-03-03 | 2016-03-03 | Pneumatic oil film static pressure bistrique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205600507U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111687727A (en) * | 2019-03-15 | 2020-09-22 | 嘉睿工业有限公司 | Dustproof structure of pneumatic grinding device |
| CN112692684A (en) * | 2020-12-26 | 2021-04-23 | 邵久斤 | Machine spare and accessory part grinding device capable of grinding accurately |
-
2016
- 2016-03-03 CN CN201620163916.3U patent/CN205600507U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111687727A (en) * | 2019-03-15 | 2020-09-22 | 嘉睿工业有限公司 | Dustproof structure of pneumatic grinding device |
| CN112692684A (en) * | 2020-12-26 | 2021-04-23 | 邵久斤 | Machine spare and accessory part grinding device capable of grinding accurately |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101478190B (en) | Air sealing construct design for electric main shaft of oil grease mill | |
| CN101245856B (en) | Bearing sealing device | |
| EP3299648B1 (en) | Groove-type dynamic pressure gas radial bearing | |
| CN104912838A (en) | Split air foil bearing easy to disassemble and air compressor with same | |
| CN205600507U (en) | Pneumatic oil film static pressure bistrique | |
| CN105422859A (en) | Transmission shaft head end face sealing device | |
| KR101653358B1 (en) | Thrust air bearing | |
| CN201982668U (en) | Radial blowing device of high-speed motorized spindle | |
| CN202398823U (en) | Axial air blowing device of high speed electric spindle | |
| CN201221606Y (en) | Lead screw bearing seal device | |
| CN109253260A (en) | A kind of oil sealing arrangement of the gas turbine with flag-shaped slot rotating ring | |
| CN110842770B (en) | High-speed ultrasonic liquid static pressure type grinding electric spindle | |
| CN209021250U (en) | A kind of air-floating main shaft | |
| CN204458819U (en) | Novel wear resistant silicon nitride ceramics bearing | |
| CN102042411B (en) | Non-contact type gas seal device | |
| CN205147999U (en) | Emery wheel grinding device | |
| CN104369105B (en) | Dresser for the processing of angular contact ball bearing ring raceway groove | |
| CN205496576U (en) | Oil film static pressure electricity main shaft | |
| WO2019095950A1 (en) | Mechanical seal having auxiliary lubricating device | |
| CN102494025A (en) | Static-pressure gas bearing | |
| CN103115072B (en) | A kind of sealing configuration of oil-lubricated bearing | |
| CN114215916B (en) | A air film seal structure for aeroengine main bearing chamber | |
| CN204114140U (en) | A kind of driven journal end face densification device | |
| CN201844021U (en) | Non-contact gas sealing device | |
| CN209026205U (en) | A kind of oil sealing arrangement of the gas turbine with flag-shaped slot rotating ring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |