CN107061286A - Roots blower bearing clearance is eliminated and end clearance adjustment structure - Google Patents
Roots blower bearing clearance is eliminated and end clearance adjustment structure Download PDFInfo
- Publication number
- CN107061286A CN107061286A CN201611138407.6A CN201611138407A CN107061286A CN 107061286 A CN107061286 A CN 107061286A CN 201611138407 A CN201611138407 A CN 201611138407A CN 107061286 A CN107061286 A CN 107061286A
- Authority
- CN
- China
- Prior art keywords
- clearance
- pad
- bearing
- roller bearing
- pressing 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/17—Tolerance; Play; Gap
- F04C2270/175—Controlled or regulated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
Eliminated the invention discloses a kind of roots blower bearing clearance and end clearance adjustment structure, it is characterized in that the travelling end of blower fan main shaft（1）And fixing end（2）It is mounted on roller bearing（3）, the roller bearing at the blower fan main shaft two ends（3）Outside be mounted on pad pressing plate（4）, the pad pressing plate（4）For annular plate, its annular outermost side diameter is more than roller bearing（3）End face diameter, the pad pressing plate（4）More than roller bearing（3）The plate body part of end face and end cap（5）Gap in pad is installed（6）, wherein positioned at travelling end（1）The pad pressing plate of side（4）With roller bearing（3）Between be provided with wavy spring（7）.The present invention can eliminate bearing clearance and the blower fan end clearance of roots blower, effectively increase the use reliability of roots blower, simple and practical, production cost is low, and service life is long, and convenient dismounting, be easy to repair bearing and changed.
Description
Technical field
Eliminated the present invention relates to a kind of fan bearing clearance and end clearance adjustment structure.
Background technology
The impeller support and rotation of current roots blower are required to use bearing, and deep-groove ball axle is used common fan bearing more
Hold or double row angular contact bearing, used with upper bearing (metal) when at a high speed with high pressure roots blower, because its rotation speed of fan is high, load
Height, bearing load is small, causes fan vibration high, and impeller is collided with blower fan epicycle.If during using roller bearing, due to roller axle
Hold clearance big, blower fan end clearance can be influenceed, influence blower fan reliability.
The content of the invention
There is provided a kind of simple and practical, raising aiming at the deficiency that above-mentioned prior art is present for the purpose of the present invention
The roots blower bearing clearance of blower fan reliability is eliminated and end clearance adjustment structure.
The technical solution adopted by the present invention is as follows：
A kind of roots blower bearing clearance is eliminated and end clearance adjustment structure, it is characterized in that the travelling end of blower fan main shaft and fixation
End is mounted on being mounted on pad pressing plate, the pad on the outside of roller bearing, the roller bearing at the blower fan main shaft two ends
Pressing plate is annular plate, and its annular outermost side diameter is more than the end face diameter of roller bearing, and the pad pressing plate is more than roller axle
Pad is installed in the plate body part in socket end face and the gap of end cap, wherein pad pressing plate and roller axle positioned at travelling end side
Wavy spring is provided between holding.
The pad is elastomeric pad.
The thickness of the pad is more than the width of blower fan end clearance.
Beneficial effects of the present invention have：
No matter load is which direction pointed to along blower fan main shaft, and the present invention can eliminate the bearing clearance and wind of roots blower
Machine end clearance, effectively increases the use reliability of roots blower, simple and practical, production cost is low, and service life is long,
And convenient dismounting, it is easy to repair bearing and changed.
Brief description of the drawings
Fig. 1 is structural representation of the invention.
Embodiment
The present invention is further described below in conjunction with the accompanying drawings：
As shown in figure 1, the travelling end 1 of blower fan main shaft of the present invention and fixing end 2 are mounted on roller bearing 3, the blower fan main shaft
The outside of the roller bearing 3 at two ends is mounted on pad pressing plate 4.Pad pressing plate 4 is annular plate, and its annular outermost side diameter is big
In the end face diameter of roller bearing 3.Pad pressing plate 4 is more than the plate body part of the end face of roller bearing 3 with being installed in the gap of end cap 5
There is pad 6, wherein being provided with wavy spring 7 between the pad pressing plate 4 and roller bearing 3 of the travelling side of end 1.In the present invention
The preferably elastomeric pad of pad 6, and width of the thickness more than blower fan end clearance of pad 6.
When the present invention is loaded to the left, i.e., the pad pressing plate 4 on the left of Fig. 1 blocks the outer ring of ball bearing 3, protects gap
Hold constant, the thickness of pad 6 of the side of fixing end 2 by adjusting blower fan main shaft can reach the purpose of adjustment end clearance 8.
When the present invention is loaded to the right, it is now in the pad pressing plate 4 on the right side of Fig. 1 and is acted on by then passing through wavy spring 7
In bearing outer ring.Spring can carry out pretension according to stress size to bearing, and pretension amount controls spring-compressed by the pad on right side
Amount, after elimination is loaded, gap recovers normal.
Other undeclared parts of the present invention are same as the prior art.
Claims (3)
1. a kind of roots blower bearing clearance is eliminated and end clearance adjustment structure, it is characterized in that the travelling end of blower fan main shaft（1）
And fixing end（2）It is mounted on roller bearing（3）, the roller bearing at the blower fan main shaft two ends（3）Outside be mounted on pad
Piece pressing plate（4）, the pad pressing plate（4）For annular plate, its annular outermost side diameter is more than roller bearing（3）End face it is straight
Footpath, the pad pressing plate（4）More than roller bearing（3）The plate body part of end face and end cap（5）Gap in pad is installed
（6）, wherein positioned at travelling end（1）The pad pressing plate of side（4）With roller bearing（3）Between be provided with wavy spring（7）.
2. roots blower bearing clearance according to claim 1 is eliminated and end clearance adjustment structure, it is characterized in that described
Pad（6）For elastomeric pad.
3. roots blower bearing clearance according to claim 1 is eliminated and end clearance adjustment structure, it is characterized in that described
Pad（6）Thickness be more than blower fan end clearance width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138407.6A CN107061286A (en) | 2016-12-12 | 2016-12-12 | Roots blower bearing clearance is eliminated and end clearance adjustment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138407.6A CN107061286A (en) | 2016-12-12 | 2016-12-12 | Roots blower bearing clearance is eliminated and end clearance adjustment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061286A true CN107061286A (en) | 2017-08-18 |
Family
ID=59618891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611138407.6A Pending CN107061286A (en) | 2016-12-12 | 2016-12-12 | Roots blower bearing clearance is eliminated and end clearance adjustment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061286A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0280892A3 (en) * | 1987-02-28 | 1989-04-05 | Leybold Aktiengesellschaft | Vaccum pump with a device for counting the revolutions |
| CN201428600Y (en) * | 2009-06-18 | 2010-03-24 | 宜兴优纳特机械有限公司 | Adjusting device for gap between end surface and end cover of Routs blower impeller |
| CN103104489A (en) * | 2011-11-11 | 2013-05-15 | 中国科学院沈阳科学仪器研制中心有限公司 | Roots vacuum pump |
| CN104196749A (en) * | 2014-08-27 | 2014-12-10 | 南京磁谷科技有限公司 | Centrifugal fan with impeller axial gap adjusted through driving axial magnetic bearing and method for adjusting impeller axial gap |
| CN106089707A (en) * | 2016-06-13 | 2016-11-09 | 江苏润海能源科技有限公司 | Energy-saving and high-pressure Roots blower |
| CN206368816U (en) * | 2016-12-12 | 2017-08-01 | 无锡吴创环境科技有限公司 | Roots blower bearing clearance is eliminated and end clearance adjustment structure |
-
2016
- 2016-12-12 CN CN201611138407.6A patent/CN107061286A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0280892A3 (en) * | 1987-02-28 | 1989-04-05 | Leybold Aktiengesellschaft | Vaccum pump with a device for counting the revolutions |
| CN201428600Y (en) * | 2009-06-18 | 2010-03-24 | 宜兴优纳特机械有限公司 | Adjusting device for gap between end surface and end cover of Routs blower impeller |
| CN103104489A (en) * | 2011-11-11 | 2013-05-15 | 中国科学院沈阳科学仪器研制中心有限公司 | Roots vacuum pump |
| CN104196749A (en) * | 2014-08-27 | 2014-12-10 | 南京磁谷科技有限公司 | Centrifugal fan with impeller axial gap adjusted through driving axial magnetic bearing and method for adjusting impeller axial gap |
| CN106089707A (en) * | 2016-06-13 | 2016-11-09 | 江苏润海能源科技有限公司 | Energy-saving and high-pressure Roots blower |
| CN206368816U (en) * | 2016-12-12 | 2017-08-01 | 无锡吴创环境科技有限公司 | Roots blower bearing clearance is eliminated and end clearance adjustment structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |
|
| RJ01 | Rejection of invention patent application after publication |