CN103047146A - Oil supply system for vertical/angular vacuum dry pump - Google Patents
Oil supply system for vertical/angular vacuum dry pump Download PDFInfo
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- CN103047146A CN103047146A CN2012105900040A CN201210590004A CN103047146A CN 103047146 A CN103047146 A CN 103047146A CN 2012105900040 A CN2012105900040 A CN 2012105900040A CN 201210590004 A CN201210590004 A CN 201210590004A CN 103047146 A CN103047146 A CN 103047146A
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- oil
- pump
- pump shaft
- supply system
- lubricating cup
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Abstract
The invention belongs to the technical field of vertical/angular vacuum dry pumps, and particularly relates to an oil supply system for a vertical/angular vacuum dry pump. The oil supply system includes an oil cup, a pump shaft and an oil return pipeline, wherein an oil transfer hole is arranged in the pump shaft along the axis; the lower end of the pump shaft is provided with a screw structure and is inserted into the oil cup; an oil slinging hole communicated with the oil transfer hole is formed in a position, where the pump shaft is connected with a bearing and a gear, in the radial direction; the oil return pipeline communicates the oil cup and the bearing cavity far away from the oil cup; the pump shaft rotates to press pump oil into the oil transfer hole of the pump shaft by means of the screw structure at the lower end of the pump shaft, the pump oil passes through the oil slinging hole formed in the pump shaft in the radial direction and flows onto the bearing and the gear, and the pump oil flows back to the oil cup by means of the oil return pipeline after lubrication completion. The oil supply system can improve system stability, achieves higher lubricating effect, and lowers the cost at the same time.
Description
Technical field
The invention belongs to the dried pump technical field of vertical/angled type vacuum, specifically a kind of vertical or angle is the oil supply system of the dried pump of vacuum.
Background technique
The dried pump of vacuum is through vicennial fast development, the horizontal vacuum pump has possessed the very hypermedia ability of extraction, but for easy generation scarce capacity deposition or mixed medium, advanced successively the development of vertical type vacuum pump, vertical type vacuum pump has innate advantage for gaseous masses such as water vapour own greater than the medium of air, medium is extracted by the relief opening that is positioned at the pump below through pump by the suction port that is positioned at pump top and discharges, and meets the flow characteristic of medium.
Dried pump generally has the bearing rotation system, and vertical type vacuum pump generally has two groups of bearings, and at upside and the downside of pump chamber, two groups of bearings all need to lubricate respectively.Comprise the driving mechanisms such as gear transmission in the power system of dried pump, must use lubricant oil to be lubricated when running up and lower the temperature.
The fuel system of the dried pump of vertical vacuum generally adopts the oil delivery pump, with little pump oil delivery is arrived bearing and gear position, and this system is comparatively complicated, and reliability is lower.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of vertical or angle is the oil supply system of the dried pump of vacuum.This vertical or angle is that the oil supply system of the dried pump of vacuum improves Systems balanth, reaches higher lubrication effect, reduces simultaneously cost.
To achieve these goals, the present invention is by the following technical solutions:
A kind of vertical/oil supply system of the dried pump of angled type vacuum, comprise lubricating cup, pump shaft and return line, wherein be provided with the oil transportation hole along axis on the pump shaft, the lower end of described pump shaft offers worm structure, this worm structure end inserts in the lubricating cup, described pump shaft radially offers the oilhole that gets rid of that is communicated with the oil transportation hole with the position that bearing is connected with gear, and described return line will be communicated with lubricating cup away from the cavity of the bearing of lubricating cup; The rotation of described pump shaft, the worm structure by the lower end is pressed into the pump oil in the lubricating cup in the oil transportation hole of pump shaft, and pump oil flows on bearing and the gear by the oilhole that gets rid of of radially offering on the pump shaft, and pump oil is finished and is flow back in the lubricating cup by return line after lubricated.
The lower end external diameter of described pump shaft and the internal diameter of lubricating cup are Spielpassung, and described worm structure is for offering outside thread at the lower end of pump shaft excircle or offering internal thread or in the lower end of pump shaft internal and external screw thread is set at oil transportation hole, lower end inwall.
Described worm structure is for to be provided with screw piece in the oil transportation hole of pump shaft lower end.
Advantage of the present invention and beneficial effect are:
1. the present invention uses spiral force feed mode, and oil is pressed into the oil circuit from lubricating cup, reaches higher lubrication effect, has improved Systems balanth.
2. the present invention is simple in structure, and is easy to process, reduces cost.
Description of drawings
Fig. 1 is structural representation of the present invention.
Wherein: 1 is return line; 2 is bearing; 3 is pump rotor; 4 is lubricating cup; 5 is gear; 6 is pump shaft.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, the present invention includes lubricating cup 4, pump shaft 6 and return line 1, wherein be provided with the oil transportation hole along axis on the pump shaft 6, the lower end of pump shaft 6 offers worm structure and this worm structure end inserts in the lubricating cup 4, pump shaft 6 and bearing 2 are connected the position that is connected and are radially offered the oilhole that gets rid of that is communicated with the oil transportation hole with gear, will get rid of as required oilhole different apertures is set.Return line 1 will be communicated with lubricating cup 4 away from the cavity of the bearing 2 of lubricating cup 4.Pump shaft 6 rotations, worm structure by the lower end is transported to the pump oil in the lubricating cup 4 in the oil transportation hole of pump shaft 6, be transported to the position of bearing 2 and gear 5, pump oil flows on bearing 2 and the gear 5 by the oilhole that gets rid of of radially offering on the pump shaft 6, pump oil flow back in the lubricating cup 4 by return line 1 after finishing and lubricating, and lubricating cup 4 guarantees to be positioned at the lower position of oil-way system.
The lower end external diameter of pump shaft 6 and the internal diameter of lubricating cup 4 are Spielpassung, guarantee that helix structure guarantees that in operation process pump oil has higher pressure.
Described worm structure is for to offer outside thread at the lower end of pump shaft 6 excircle, or offers internal thread at oil transportation hole, the lower end of pump shaft 6 inwall, or in the lower end of pump shaft 6 internal and external screw thread is set simultaneously, or is provided with screw piece in the oil transportation hole of pump shaft 6 lower ends.
Working principle of the present invention is:
The present invention is by different processing modes, process external spiral formula, inner-spiral type or rotary sheet type structure force feed in the lower end of pump shaft 6, pump oil is transported to the position of bearing 2 and gear 5 by the oil transportation hole of pump shaft 6, by the multi-form oilhole that gets rid of pump oil is transported on the bearing 2 and gear 5 of the pump that uses one-sided or bilateral spring bearing, finishes lubricated.For the pump of bilateral spring bearing, pump oil finish lubricated away from the bearing 2 of lubricating cup 4 positions after, in return line 1 returns lubricating cup 1.
Claims (4)
1. the oil supply system of vertical/dried pump of angled type vacuum, it is characterized in that: comprise lubricating cup (4), pump shaft (6) and return line (1), wherein pump shaft (6) is upper is provided with the oil transportation hole along axis, the lower end of described pump shaft (6) offers worm structure, this worm structure end inserts in the lubricating cup (4), described pump shaft (6) is connected 5 with bearing (2) with gear) position that is connected radially offers the oilhole that gets rid of that is communicated with the oil transportation hole, and described return line (1) will be communicated with lubricating cup (4) away from the cavity of the bearing (2) of lubricating cup (4); Described pump shaft (6) rotation, worm structure by the lower end is pressed into the pump oil in the lubricating cup (4) in the oil transportation hole of pump shaft (6), pump oil flows on bearing (2) and the gear (5) by the oilhole that gets rid of of radially offering on the pump shaft (6), and pump oil flow back in the lubricating cup (4) by return line (1) after finishing and lubricating.
By claimed in claim 1 vertical/oil supply system of the dried pump of angled type vacuum, it is characterized in that: the internal diameter of the lower end external diameter of described pump shaft (6) and lubricating cup (4) is Spielpassung.
By claim 1 or 2 described vertical/oil supply system of the dried pump of angled type vacuum, it is characterized in that: described worm structure is for offering outside thread at the lower end excircle of pump shaft (6) or offering internal thread or in the lower end of pump shaft (6) internal and external screw thread is set at oil transportation hole, lower end inwall.
By claim 1 or 2 described vertical/oil supply system of the dried pump of angled type vacuum, it is characterized in that: described worm structure is for to be provided with screw piece in the oil transportation hole of pump shaft (6) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105900040A CN103047146A (en) | 2012-12-29 | 2012-12-29 | Oil supply system for vertical/angular vacuum dry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105900040A CN103047146A (en) | 2012-12-29 | 2012-12-29 | Oil supply system for vertical/angular vacuum dry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103047146A true CN103047146A (en) | 2013-04-17 |
Family
ID=48059929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105900040A Pending CN103047146A (en) | 2012-12-29 | 2012-12-29 | Oil supply system for vertical/angular vacuum dry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103047146A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4936757A (en) * | 1988-10-07 | 1990-06-26 | Unozawa-Gumi Iron Works, Ltd. | Multi-section vacuum pump |
| JP2006083783A (en) * | 2004-09-17 | 2006-03-30 | Toyota Industries Corp | Screw type fluid machine |
| JP2006322340A (en) * | 2005-05-17 | 2006-11-30 | Toyota Industries Corp | Method and device for cooling bearing part of vacuum pump |
| CN1959117A (en) * | 2005-11-01 | 2007-05-09 | 株式会社丰田自动织机 | Vacuum pump |
| CN101182845A (en) * | 2007-12-07 | 2008-05-21 | 东北大学 | Dry-type vacuum pump |
| JP2009114976A (en) * | 2007-11-07 | 2009-05-28 | Nabtesco Corp | Vacuum pump |
-
2012
- 2012-12-29 CN CN2012105900040A patent/CN103047146A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4936757A (en) * | 1988-10-07 | 1990-06-26 | Unozawa-Gumi Iron Works, Ltd. | Multi-section vacuum pump |
| JP2006083783A (en) * | 2004-09-17 | 2006-03-30 | Toyota Industries Corp | Screw type fluid machine |
| JP2006322340A (en) * | 2005-05-17 | 2006-11-30 | Toyota Industries Corp | Method and device for cooling bearing part of vacuum pump |
| CN1959117A (en) * | 2005-11-01 | 2007-05-09 | 株式会社丰田自动织机 | Vacuum pump |
| JP2009114976A (en) * | 2007-11-07 | 2009-05-28 | Nabtesco Corp | Vacuum pump |
| CN101182845A (en) * | 2007-12-07 | 2008-05-21 | 东北大学 | Dry-type vacuum pump |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130417 |