CN203738564U - Two-sided grinding machine with planar hydrodynamic journal bearing - Google Patents
Two-sided grinding machine with planar hydrodynamic journal bearing Download PDFInfo
- Publication number
- CN203738564U CN203738564U CN201420125291.2U CN201420125291U CN203738564U CN 203738564 U CN203738564 U CN 203738564U CN 201420125291 U CN201420125291 U CN 201420125291U CN 203738564 U CN203738564 U CN 203738564U
- Authority
- CN
- China
- Prior art keywords
- grinding machine
- journal bearing
- hydrodynamic journal
- oil
- hydrostatic bearing
- 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.)
- Expired - Lifetime
Links
- 239000003921 oil Substances 0.000 claims description 23
- 230000002706 hydrostatic effect Effects 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 13
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model provides a two-sided grinding machine with a planar hydrodynamic journal bearing. According to the two-sided grinding machine with the planar hydrodynamic journal bearing, due to the fact that the planar hydrodynamic journal bearing is arranged between a lower grinding disc supporting base (2) and a machine base, the downward load of a lower grinding disc (1) can be completely borne, the coefficient of friction between two contact surfaces can be decreased remarkably, both the bearing capacity of the grinding machine and the rotation precision of the grinding disc are improved, and the service life of the grinding machine is greatly prolonged.
Description
Technical field
The utility model belongs to optical flat technical field of processing equipment, relates to a kind of twin grinder, is applicable to optics deep processing industry, is mainly used in glass and sapphire twin grinding processing.
Background technology
Plane lapping processing is one of most important operation in optics deep processing, and the development most significant end technology of grinding machinery industry all concentrates on the U.S., Japanese and German.Along with advancing by leaps and bounds of this three states grinding technique, other countries also more or less be subject to certain impact.On the Chinese side, have very early although grind industry, use is external machinery equipment always, there is no grinding technique and the grinding technics of oneself.In recent years, along with the rapid expansion of the market demand, more domestic enterprises are introducing U.S., day, on the basis of moral technology, start to research and develop technology and the technique of self, obtain larger achievement.Grinding technics is widely used in optics, aviation, automobile, mould, gem processing and various hardware industry, has very space, huge market.As-Is, grinder, at home also in the state that supply falls short of demand, along with introduction and the improvement of technology, has had Some Enterprises to start the water surface of emerging, and develops Novel two-sided grinding machine just under this background.Common plane main shaft structure of grinding machine mainly bears the gravity of downward direction, and its gravity mainly comes from two aspects: 1. the gravity of upper and lower mill (containing the annex being arranged on upper millstone), the 2. downward active force of cylinder.The main axle structure generally using is at present to adopt angular contact roller bearing to carry downward gravity, and due to structural limitations, this angular contact roller bearing should not select large model, and therefore bearing capacity is limited; Chinese patent 201120004194.4 discloses a kind of twin grinder and adopts a large plane bearing, although bearing capacity has very big raising, but still can not meet load bearing requirements, in addition, due to the restriction in service life of bearing, increase the maintenance cost of equipment, shorten service life of equipment.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides a kind of Novel two-sided grinding machine that adopts plane hydrostatic bearing, and the main shaft downward direction bearing capacity of this grinder is superpower.
The purpose of this utility model is to realize like this, a kind of twin grinder that uses flat liquid hydrostatic bearing, comprise main axle structure, upper millstone and lower millstone, upper millstone is supported on lower millstone, lower millstone is arranged on supporting seat, it is characterized in that: between supporting seat and support, be provided with flat liquid hydrostatic bearing, whole axle owner wants weight to be carried on oil film, and flat liquid hydrostatic bearing is arranged on support.
Further, described oil film can be formed by oil nozzle orifice restriction effect by hydraulic oil that petrol station supplies.
Owing to adopting main axle structure and the plane hydrodynamic journal liquid polymers of above-mentioned innovation, the utlity model has following advantage:
1. flat liquid hydrostatic bearing bearing capacity is superpower, and axial carrying capacity exceedes 1000Kg, has solved a carrying difficult problem for main shaft downward direction;
2. in the process of device start and running, static pressure oil film can separate friction pair, and resistance to sliding is only from fluid viscosity, and coefficient of friction is little, thereby reduces equipment attrition, has greatly improved equipment life;
3. because the effect of static pressure oil film makes the pressure distribution of surface of friction pair even, thereby improved the running accuracy of abrasive disk;
4. the temperature distribution uniform of hydrostatic bearing, has reduced the impact of equipment expanded by heating.
Brief description of the drawings
Fig. 1 is main axle structure schematic diagram of the present utility model.
Fig. 2 is plane static pressure liquid-bearing internal structure schematic diagram.
Detailed description of the invention
As shown in Figure 1,1 lower millstone, 2 supporting seats, 3 return lines, 4 petrol stations, 5 oil feed lines, 6 oil grooves,
7 oil nozzles, 8 oil films.
Main axle structure as shown in Figure 1, it comprises upper millstone and lower millstone 1, upper millstone is supported on lower millstone 1, lower millstone 1 is arranged on supporting seat 2, it is characterized in that: between supporting seat 2 and support, be provided with flat liquid hydrostatic bearing, whole axle owner wants weight to be carried on oil film 8, and flat liquid hydrostatic bearing is arranged on support.Its operation principle is, pumping into a certain amount of hydraulic oil by petrol station 4 by oil feed line 5 is ejected between lower millstone supporting seat and support through oil nozzle 7, supporting seat 2 and lower millstone 1 are all carried on oil film 8, and upper millstone is supported on lower millstone, and whole like this axle owner wants weight to bear by oil film 8.Oil film is formed by oil nozzle 7 orifice restriction effects by hydraulic oil that petrol station supplies, and in the time that oil film thickness reaches desired value, equipment starts normal work, oil film forms rear hydraulic oil and overflows, collect by oil groove 6, then be back in the middle of petrol station 4 via return line 3, form fuel feeding, oil return circulation.
Claims (2)
1. one kind adopts the twin grinder of flat liquid hydrostatic bearing, comprise main axle structure, upper millstone and lower millstone (1), upper millstone is supported on lower millstone (1), lower millstone (1) is arranged on supporting seat (2), it is characterized in that: between supporting seat (2) and support, be provided with flat liquid hydrostatic bearing, it is upper that whole axle owner wants weight to be carried on oil film (8), and flat liquid hydrostatic bearing is arranged on support.
2. the twin grinder that adopts as claimed in claim 1 flat liquid hydrostatic bearing, is characterized in that: oil film (8) by petrol station (4) the hydraulic oil that supplies form by oil nozzle (7) orifice restriction effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125291.2U CN203738564U (en) | 2014-03-20 | 2014-03-20 | Two-sided grinding machine with planar hydrodynamic journal bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420125291.2U CN203738564U (en) | 2014-03-20 | 2014-03-20 | Two-sided grinding machine with planar hydrodynamic journal bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203738564U true CN203738564U (en) | 2014-07-30 |
Family
ID=51338427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420125291.2U Expired - Lifetime CN203738564U (en) | 2014-03-20 | 2014-03-20 | Two-sided grinding machine with planar hydrodynamic journal bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203738564U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500730A (en) * | 2018-12-18 | 2019-03-22 | 浙江晶盛机电股份有限公司 | A kind of hydrodynamic bearing support construction for accurate twin grinder |
-
2014
- 2014-03-20 CN CN201420125291.2U patent/CN203738564U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500730A (en) * | 2018-12-18 | 2019-03-22 | 浙江晶盛机电股份有限公司 | A kind of hydrodynamic bearing support construction for accurate twin grinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104533955A (en) | Water lubrication tilting pad static-pressure bearing structure cooled through water returning grooves | |
| CN203738564U (en) | Two-sided grinding machine with planar hydrodynamic journal bearing | |
| CN203600038U (en) | Grinding mechanism of bearing outer ring super finishing machine | |
| CN203371363U (en) | Piston ring groove grinding machine | |
| CN201970202U (en) | Double-faced grinding machine | |
| CN103277407B (en) | Grid column type thrust-bearing supporting structure | |
| CN103831712B (en) | A kind of lower wall device for two-sided accurate grinding, grinding building-block machine | |
| CN204564274U (en) | Roll grinding machine | |
| CN101413549A (en) | Spherical surface aligning slide bearing for rolling machine | |
| CN203956741U (en) | The static pressure trimmer of super grinding ball bear inner ring grooved railway abrasive grinding wheel | |
| CN203730543U (en) | Hydrodynamic thrust bearing with oil separators | |
| CN203696732U (en) | Lower plate device for double-surface combined precise cutting and grinding machine tool | |
| CN202224207U (en) | High-precision surface lapping machine | |
| CN203791999U (en) | Rotating table closed type constant-current hydrostatic guideway | |
| CN205342678U (en) | Liquid hydrodynamic float burnishing device | |
| CN206344010U (en) | A kind of accurate twin grinder agent structure of use hydrostatic bearing structure | |
| CN207892758U (en) | Tubular turbine combination bearing | |
| CN202985291U (en) | Rapid polisher | |
| CN203092264U (en) | Ultra-high precision mirror grinding machine for pole piece roller | |
| CN205765532U (en) | A kind of centering type glass grinding polishing jig | |
| CN105240536A (en) | Spindle water feeding sealing device | |
| CN203197726U (en) | Grinding miller static-pressure lower grinding disk part | |
| CN205009866U (en) | Improved generation embossing roller device | |
| CN104070455A (en) | Static pressure dresser of super-grinding bearing outer ring raceway grinding wheel and dressing method | |
| CN203868148U (en) | Hydrodynamic thrust bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: JINGDEZHEN CITY ZHONGTIAN CRYSTAL TECHNOLOGY Co.,Ltd. Assignor: JIANGXI ZHONGHANG OPTICS & EQUIPMENT Co.,Ltd. Contract record no.: 2015360000080 Denomination of utility model: Two-sided grinding machine with planar hydrodynamic journal bearing Granted publication date: 20140730 License type: Exclusive License Record date: 20150610 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151027 Address after: 333000 Jiangxi Province, Jingdezhen City Changjiang district fish Li Industrial Park Patentee after: JIANGXI NAT TECHNOLOGY Co. Address before: 333000 Jiangxi city of Jingdezhen province Jingdezhen Hutian (602 Science Park) Patentee before: JIANGXI ZHONGHANG OPTICS & EQUIPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |