CN206368816U - 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
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- CN206368816U CN206368816U CN201621356455.8U CN201621356455U CN206368816U CN 206368816 U CN206368816 U CN 206368816U CN 201621356455 U CN201621356455 U CN 201621356455U CN 206368816 U CN206368816 U CN 206368816U
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- roller bearing
- pressing plate
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Abstract
Eliminated the utility model 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 utility model 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
The utility model is related to a kind of fan bearing clearance and eliminated 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.
Utility model content
The purpose of this utility model aiming at above-mentioned prior art exist it is not enough there is provided one kind is simple and practical,
The roots blower bearing clearance for improving blower fan reliability is eliminated and end clearance adjustment structure.
The technical solution adopted in the utility model 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
Fixing end is mounted on being mounted on pad pressing plate on the outside of roller bearing, the roller bearing at the blower fan main shaft two ends, described
Pad 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 rolling
Pad is installed in the plate body part of post bearing face and the gap of end cap, wherein pad pressing plate and rolling positioned at travelling end side
Axis of a cylinder is provided with wavy spring between holding.
The pad is elastomeric pad.
The thickness of the pad is more than the width of blower fan end clearance.
The beneficial effects of the utility model have：
No matter load is which direction pointed to along blower fan main shaft, and the utility model can eliminate the bearing trip of roots blower
Gap and blower fan end clearance, effectively increase the use reliability of roots blower, simple and practical, production cost is low, makes
With long lifespan, and convenient dismounting, it is easy to repair bearing and changed.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings：
As shown in figure 1, the travelling end 1 of the utility model blower fan main shaft and fixing end 2 are mounted on roller bearing 3, it is described
The outside of the roller bearing 3 at blower fan main shaft two ends is mounted on pad pressing plate 4.Pad pressing plate 4 is annular plate, its annular outermost
Side diameter is more than the end face diameter of roller bearing 3.Pad pressing plate 4 is more than between the plate body part of the end face of roller bearing 3 and end cap 5
Pad 6 is installed, 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 gap.This
The preferably elastomeric pad of pad 6 in utility model, and width of the thickness more than blower fan end clearance of pad 6.
When the utility model 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, between making
Gap keeps constant, the thickness of pad 6 of the side of fixing end 2 by adjusting blower fan main shaft, can reach the mesh of adjustment end clearance 8
's.
When the utility model is loaded to the right, the pad pressing plate 4 on the right side of Fig. 1 is now in by then passing through wavy spring 7
Act on bearing outer ring.Spring can carry out pretension according to stress size to bearing, and pretension amount controls spring by the pad on right side
Decrement, after elimination is loaded, gap recovers normal.
Other undeclared parts that the utility model is related to 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 |
|---|---|---|---|
| CN201621356455.8U CN206368816U (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 |
|---|---|---|---|
| CN201621356455.8U CN206368816U (en) | 2016-12-12 | 2016-12-12 | Roots blower bearing clearance is eliminated and end clearance adjustment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206368816U true CN206368816U (en) | 2017-08-01 |
Family
ID=59392753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621356455.8U Active CN206368816U (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) | CN206368816U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061286A (en) * | 2016-12-12 | 2017-08-18 | 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 CN201621356455.8U patent/CN206368816U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061286A (en) * | 2016-12-12 | 2017-08-18 | 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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| GR01 | Patent grant |