CN201851389U - Molecular pump oil supply cone and oil supply system with same - Google Patents
Molecular pump oil supply cone and oil supply system with same Download PDFInfo
- Publication number
- CN201851389U CN201851389U CN2010206086450U CN201020608645U CN201851389U CN 201851389 U CN201851389 U CN 201851389U CN 2010206086450 U CN2010206086450 U CN 2010206086450U CN 201020608645 U CN201020608645 U CN 201020608645U CN 201851389 U CN201851389 U CN 201851389U
- Authority
- CN
- China
- Prior art keywords
- fuel feeding
- hole
- oil
- molecular pump
- oil supply
- 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 - Fee Related
Links
Images
Landscapes
- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a molecular pump oil supply cone which comprises an oil supply cone body which is partially inserted into an oil pond. A first through hole for lubricating oil to flow is formed at the length direction of the oil supply cone body; a lubricating oil inlet end is formed at the lower end of the first through hole and is communicated with the oil pond; an outer circular conical surface is formed at the part of the oil supply cone body which is near to the lubricating oil inlet end; the extending line of the generatrix of the circular conical surface is directed to a roll ball arranged on a lower bearing which is arranged on the oil supply cone body; and the distance from the upper end face of the circular conical surface to the lower end face of the circular conical surface meets the requirement when the oil supply cone body rotates, the lubricating oil can be thrown to the roll ball of the lower bearing along the circular conical surface. The molecular pump oil supply cone is simple in structure, and is capable of adequately lubricating the bearing and discharging the redundant lubricating oil, so that the problem of oil obstruction caused by gathering the lubricating oil on the bearing can be solved.
Description
Technical field
The utility model relates to the molecular pump oil supplying device.The oil supply system of this molecular pump fuel feeding awl is bored and had to specifically a kind of molecular pump fuel feeding.
Background technique
Molecular pump produces bigger friction and sends a large amount of heat thus in the process of high speed rotating at the bearing place.Such friction and heat can reduce the working life of bearing.For friction and the heat that reduces the bearing place, generally by moulding oil supply hole in the main shaft of high speed rotating and at oil supply hole one end the fuel feeding awl is set the lubricant oil in the lubrication molecule pump oil sump is carried out fuel feeding to main shaft, lubricant oil transmits by the oil supply hole in the main shaft, throws away the lubricated and cooling of realization to upper bearing (metal) and lower bearing by the aperture of main shaft side.Chinese patent literature CN201461519U has proposed a kind of molecular pump fuel feeding awl, comprise fuel feeding awl body, be molded over the through hole that flows for lubricant oil on the described fuel feeding awl body length direction and the top of the position corresponding with described molecular pump lower bearing is provided with on described fuel feeding awl body penetrates the lower bearing lubrication hole of described fuel feeding awl body outer wall from described fuel feeding awl chamber body, the bottom of the position corresponding with described molecular pump lower bearing also is provided with the draining hole that penetrates described fuel feeding awl body outer wall from described fuel feeding awl chamber body on described fuel feeding awl body.The prior art is simple in structure, can effectively control the fuel delivery of fuel feeding awl to the upper and lower bearing of molecular pump.But in use also have following shortcoming: the lower bearing lubrication hole of the fuel feeding awl of the prior art is arranged on above the lower bearing, therefore, the lubricant oil that comes out from the lower bearing lubrication hole is fallen the end face of lower bearing earlier, sees through bearing again, returns oil sump at last, and when fuel feeding awl fuel delivery bigger, when delivery rate was very fast, the lubricant oil on the lower bearing can not in time see through, and assembled in a large number on bearing, the final oil barrier that forms causes bearing heating; Simultaneously oil sump also may oil starvation causes can not continuing upwards to carry lubricant oil because oil refluxes smooth, form interruptible gas supply, and bearing generates heat in a large number, can influence the stable of rotor, and the load that increases bearing reduces working life of bearing.
The model utility content
For this reason, technical problem to be solved in the utility model is that the lower bearing lubrication hole on the molecular pump fuel feeding awl is arranged on the problem that may cause lubricant oil to be assembled above the lower bearing and cause bearing oil to hinder in the prior art on lower bearing, provides a kind of and eliminates the molecular pump fuel feeding awl of oil barrier and have the oil supply system of this molecular pump fuel feeding awl.
For solving the problems of the technologies described above, a kind of molecular pump fuel feeding awl of the present utility model, the fuel feeding awl body that comprises part insertion oil sump, form first through hole that flows for lubricant oil on the length direction of described fuel feeding awl body, the lower end of described first through hole forms the lubricating oil inlet end that is communicated with oil sump, it is characterized in that: described fuel feeding awl body forms outer conical surface near the lubricating oil inlet end portion, the elongation line of the bus of described outer conical surface points to the ball place on the lower bearing that is installed on the described fuel feeding awl body, and when the distance of the upper-end surface of described outer conical surface between the lower end surface of described lower bearing satisfied described fuel feeding awl body rotation, lubricant oil can be thrown to the ball place of described lower bearing along described outer conical surface.
Described molecular pump fuel feeding awl, the lubricating oil outlet end of described fuel feeding awl body also is provided with described first through hole coaxial, and diameter is than the big vent of the described first through hole upper end diameter.
Described molecular pump fuel feeding awl, described vent is a straight hole.
Described molecular pump fuel feeding awl also is provided with the locating flange that described molecular pump lower bearing is carried out axially locating on the described fuel feeding awl body.
Described molecular pump fuel feeding awl, described first through hole is a cone shape hole.
A kind of oil supply system with described molecular pump fuel feeding awl, also comprise the main shaft that forms second through hole that flows for lubricant oil on the length direction, and second through hole of described main shaft is communicated with first through hole of described molecular pump fuel feeding awl, form the upper bearing (metal) oil supply hole that several are communicated with described second through hole on the outer wall of described main shaft, described upper bearing (metal) oil supply hole is arranged on the lower end of upper bearing (metal), and the ball place of the described upper bearing (metal) of orientation of its axis of described upper bearing (metal) oil supply hole, and when the distance of the upper-end surface of described upper bearing (metal) oil supply hole between the lower end surface of described upper bearing (metal) satisfied described fuel feeding awl body rotation, lubricant oil can be thrown to the ball place of described upper bearing (metal) along described upper bearing (metal) oil supply hole.
Technique scheme of the present utility model has the following advantages compared to existing technology, 1, molecular pump fuel feeding awl of the present utility model forms outer conical surface in the close lubricating oil inlet end portion of fuel feeding awl body, make lubricant oil to bore under the action of centrifugal force that produces when body rotates at fuel feeding, climb along outer conical surface, be injected in the bearing ball lower end at last, thereby realize sufficient lubrication to lower bearing, and be injected in the unnecessary lubricant oil in the bearing ball lower end oil return pond that can fall because of the effect of self gravitation, thereby avoided the gathering of lubricant oil on bearing, solved oily barrier problem and intermittent type fuel feeding problem; 2, in molecular pump oil supply system of the present utility model, the upper bearing (metal) oil supply hole is arranged on bottom, upper bearing (metal) mounting point, and when the ball place of the orientation of its axis upper bearing (metal) of upper bearing (metal) oil supply hole can realize the upper bearing (metal) sufficient lubrication equally unnecessary lubricant oil is laid down, avoided the gathering of lubricant oil on upper bearing (metal).
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the molecular pump system schematic with molecular pump fuel feeding awl of the present utility model.
Reference character is expressed as among the figure: 1-fuel feeding awl body, 2-first through hole, 3-outer conical surface, 4-upper bearing (metal) oil supply hole, 5-vent, 6-locating flange, 7-second through hole, 8-lower bearing, 9-upper bearing (metal), 10-main shaft, 11-oil sump.
Embodiment
As shown in Figure 1, a kind of molecular pump fuel feeding awl of present embodiment, the fuel feeding awl body 1 that comprises part insertion oil sump 11, form first through hole 2 that flows for lubricant oil on the length direction of described fuel feeding awl body 1, the lower end of described first through hole 2 forms the lubricating oil inlet end that is communicated with oil sump 11, described fuel feeding awl body 1 forms outer conical surface 3 near the lubricating oil inlet end portion, the elongation line of the bus of described outer conical surface 3 points to the ball place on the lower bearing 8 that is installed on the described fuel feeding awl body 1, and when the distance of the upper-end surface of described outer conical surface 3 between the lower end surface of described lower bearing 8 satisfied described fuel feeding awl body 1 rotation, lubricant oil can be thrown to the ball place of described lower bearing 8 along described outer conical surface 3.The setting of described fuel feeding awl body 1 the above outer conical surface 3 can be under action of centrifugal force, lubricant oil is climbed along described outer conical surface 3, be injected in the bearing ball lower end at last, thereby realize sufficient lubrication to lower bearing 8, and be injected in the unnecessary lubricant oil in the bearing ball lower end oil return pond 11 that can fall because of the effect of self gravitation, thus avoided the gathering of lubricant oil on bearing, solved oily barrier problem and intermittent type fuel feeding problem, in the present embodiment, described first through hole 2 is a cone shape hole.The lubricating oil outlet end of described fuel feeding awl body 1 also is provided with described first through hole 2 coaxial, and diameter is than the big vent 5 of described first through hole, 2 upper end diameter.Described vent 5 is a straight hole.Also be provided with the locating flange 6 that described molecular pump lower bearing 8 is carried out axially locating on the described fuel feeding awl body 1.
A kind of oil supply system with described molecular pump fuel feeding awl, also comprise the main shaft 10 that forms second through hole 7 that flows for lubricant oil on the length direction, and second through hole 7 of described main shaft 10 is communicated with first through hole 2 of described molecular pump fuel feeding awl, form upper bearing (metal) 9 oil supply holes 4 that several are communicated with described second through hole 7 on the outer wall of described main shaft 10, equally, in order to prevent the gathering of lubricant oil on described upper bearing (metal) 9, described upper bearing (metal) 9 oil supply holes 4 are arranged on the lower end of upper bearing (metal) 9, in order to guarantee that lubricant oil can be injected in the ball place of described upper bearing (metal) 9, thereby realize sufficient lubrication to upper bearing (metal) 9 ball places, the ball place of the described upper bearing (metal) 9 of orientation of its axis of described upper bearing (metal) 9 oil supply holes 4, and when the distance of the upper-end surface of described upper bearing (metal) 9 oil supply holes 4 between the lower end surface of described upper bearing (metal) 9 satisfied described fuel feeding awl body 1 rotation, lubricant oil can be thrown to the ball place of described upper bearing (metal) 9 along described upper bearing (metal) 9 oil supply holes 4.
Working procedure: the lubricating oil outlet end on the fuel feeding awl is connected with molecular pump main shaft 10, and the lubricating oil inlet end inserts lubricating oil sump 11.When main shaft 10 drives fuel feeding awl high speed rotating, part lubricant oil is thrown on the ball of lower bearing 8 after described outer conical surface 3 is climbed, realization is lubricated to lower bearing 8, another part lubricant oil enters in the conical through-hole of fuel feeding awl and upwards carries, slow down in the place at the decompression straight hole, and throw away by decompression straight hole place, the oilhole on main shaft 10 is carried, and throws away realization lubricated to molecular pump upper bearing (metal) 9 via 9 oil supply holes 4 of the upper bearing (metal) on the main shaft 10.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all mode of executions.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.
Claims (6)
1. a molecular pump fuel feeding is bored, the fuel feeding awl body that comprises part insertion oil sump, form first through hole that flows for lubricant oil on the length direction of described fuel feeding awl body, the lower end of described first through hole forms the lubricating oil inlet end that is communicated with oil sump, it is characterized in that: described fuel feeding awl body forms outer conical surface near the lubricating oil inlet end portion, the elongation line of the bus of described outer conical surface points to the ball place on the lower bearing that is installed on the described fuel feeding awl body, and when the distance of the upper-end surface of described outer conical surface between the lower end surface of described lower bearing satisfied described fuel feeding awl body rotation, lubricant oil can be thrown to the ball place of described lower bearing along described outer conical surface.
2. molecular pump fuel feeding awl according to claim 1 is characterized in that: the lubricating oil outlet end of described fuel feeding awl body also is provided with described first through hole coaxial, and diameter is than the big vent of the described first through hole upper end diameter.
3. molecular pump fuel feeding awl according to claim 2, it is characterized in that: described vent is a straight hole.
4. according to each described molecular pump fuel feeding awl among the claim 1-3, it is characterized in that: also be provided with the locating flange that described molecular pump lower bearing is carried out axially locating on the described fuel feeding awl body.
5. molecular pump fuel feeding awl according to claim 4, it is characterized in that: described first through hole is a cone shape hole.
6. one kind has the oil supply system of boring as each described molecular pump fuel feeding among the claim 1-5, also comprise the main shaft that forms second through hole that flows for lubricant oil on the length direction, and second through hole of described main shaft is communicated with first through hole of described molecular pump fuel feeding awl, form the upper bearing (metal) oil supply hole that several are communicated with described second through hole on the outer wall of described main shaft, it is characterized in that: described upper bearing (metal) oil supply hole is arranged on the lower end of upper bearing (metal), and the ball place of the described upper bearing (metal) of orientation of its axis of described upper bearing (metal) oil supply hole, and when the distance of the upper-end surface of described upper bearing (metal) oil supply hole between the lower end surface of described upper bearing (metal) satisfied described fuel feeding awl body rotation, lubricant oil can be thrown to the ball place of described upper bearing (metal) along described upper bearing (metal) oil supply hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206086450U CN201851389U (en) | 2010-11-15 | 2010-11-15 | Molecular pump oil supply cone and oil supply system with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206086450U CN201851389U (en) | 2010-11-15 | 2010-11-15 | Molecular pump oil supply cone and oil supply system with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851389U true CN201851389U (en) | 2011-06-01 |
Family
ID=44093782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206086450U Expired - Fee Related CN201851389U (en) | 2010-11-15 | 2010-11-15 | Molecular pump oil supply cone and oil supply system with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851389U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214112A (en) * | 2013-05-29 | 2014-12-17 | 普发真空有限公司 | Vacuum pump |
| CN108412767A (en) * | 2018-03-13 | 2018-08-17 | 广东美芝制冷设备有限公司 | Bent axle and compressor |
| GB2560927A (en) * | 2017-03-28 | 2018-10-03 | Edwards Ltd | Pump bearing lubrication |
-
2010
- 2010-11-15 CN CN2010206086450U patent/CN201851389U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214112A (en) * | 2013-05-29 | 2014-12-17 | 普发真空有限公司 | Vacuum pump |
| GB2560927A (en) * | 2017-03-28 | 2018-10-03 | Edwards Ltd | Pump bearing lubrication |
| GB2560927B (en) * | 2017-03-28 | 2020-09-09 | Edwards Ltd | Pump bearing lubrication |
| CN108412767A (en) * | 2018-03-13 | 2018-08-17 | 广东美芝制冷设备有限公司 | Bent axle and compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201851389U (en) | Molecular pump oil supply cone and oil supply system with same | |
| EP2538055A2 (en) | Oil bypass channel deaerator for a geared turbofan engine | |
| EP2385248B1 (en) | Bearing, in particular for a wind turbine | |
| CN101718227A (en) | Heat flow turbine | |
| CN103382931B (en) | A kind of refrigeration compressor oil supply system | |
| CN110748419B (en) | Axial oil collecting ring and lower lubricating device and method for main bearing ring of aero-engine | |
| CN206111861U (en) | A bearing lubricating structure for wind -powered electricity generation acceleration rate case | |
| CN108980217A (en) | A kind of wind power gear case high speed axis bearing cooling device | |
| CN101545184B (en) | Lubrication system for rotating shuttle components of embroidery machines | |
| EP4088025B1 (en) | Main bearing housing of a wind turbine | |
| CN105135188B (en) | A kind of disk centrifuge bearing lubrication system | |
| CN102392889A (en) | Composite structure capable of collecting oil and centrifugally throwing oil for splash lubrication speed increasing box | |
| CN201461519U (en) | Oil supplying awl for molecular pump | |
| CN209398507U (en) | Aircraft engine oil oil return system | |
| CN208057404U (en) | Pump body subassembly and compressor and air conditioner | |
| CN106594252A (en) | Device for regulating oil quantity in gearbox of rail transit vehicle | |
| CN203516474U (en) | Novel bearing lubricating structure | |
| CN108474413B (en) | Hydrodynamic bearing | |
| CN207920865U (en) | Bent axle and compressor | |
| US20050271528A1 (en) | Lubricating systems for regenerative vacuum pumps | |
| CN103322396B (en) | Disk centrifuge high-speed bearing lubricating fitting | |
| CN108386353A (en) | Pump body subassembly and compressor and air conditioner | |
| CN201448383U (en) | Clutch | |
| CN110748418B (en) | Radial oil collecting ring, and under-ring lubricating device and method for aero-engine bearing | |
| CN201496294U (en) | Vertical turbo molecular pump capable of spraying oil from bottom to lubricate bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20151115 |
|
| EXPY | Termination of patent right or utility model |