CN201598527U - Spindle supporting structure of defibrator - Google Patents
Spindle supporting structure of defibrator Download PDFInfo
- Publication number
- CN201598527U CN201598527U CN2009200397203U CN200920039720U CN201598527U CN 201598527 U CN201598527 U CN 201598527U CN 2009200397203 U CN2009200397203 U CN 2009200397203U CN 200920039720 U CN200920039720 U CN 200920039720U CN 201598527 U CN201598527 U CN 201598527U
- Authority
- CN
- China
- Prior art keywords
- bearing
- defibrator
- main shaft
- spindle
- journal 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 - Fee Related
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- Sliding-Contact Bearings (AREA)
Abstract
The utility model relates to a structure in a defibrator (or a fibrator) of a fiber preparation section in paper making or on a medium and high density fiberboard production line, in particular to a bearing supporting combined structure of a transmission spindle in a defibrator structure. The adopted technical scheme includes that a radial bearing is respectively and fixedly mounted at the front end and the rear end of a spindle, and asymmetric oil film dynamic pressure thrust bearings are fixedly mounted in the middle of the spindle. The spindle supporting structure is capable of reducing space structure of the integral machinery, and has large supporting capacity and high precision.
Description
Technical field
The utility model relates to the structure in the defibrator (or disc mill) of the fiber production workshop section on papermaking or the middle and higher density fibreboard production line, particularly the bearing of the final drive shaft in defibrator structure supporting combining structure.
Background technology
Existing papermaking or in, in the high-density fiber board assembly line, the defibrator main shaft adopts the version of three supportings, that is: at the two ends of main shaft one radial support bearing is installed respectively, the symmetrical plane thrust bearing is installed in the middle of the main shaft, the defective of this spindle support structure is: because the axial force that the symmetrical plane thrust bearing in the middle of the main shaft mainly bears work to be produced, and along with the increase of fibreboard production line output, the increase of the power of defibrator and mill diameter, the structure of this symmetrical plane thrust bearing need very hugely just can meet the demands, this just makes whole mechanical structure not compact, cause the main shaft unbalance stress easily, short and the increase energy consumption of bearing life, and make troubles to installation and maintenance, seriously restricted defibrator and in, the development of high-density fiber production line.
Summary of the invention
The purpose of this utility model is for overcoming the deficiencies in the prior art, and the spindle support structure of the big and defibrator that precision is high of a kind of space structure, bearing capacity that dwindles whole machinery is provided.
The technical solution adopted in the utility model is: at the front end fixed installation journal bearing of main shaft, fixed installation journal bearing in rear end is installed asymmetric oil film hydrodynamic thrust bearing in the center fixed of main shaft.
The beneficial effects of the utility model are:
1, the asymmetric oil film hydrodynamic thrust bearing that adopts in the middle of the main shaft is compared with plane thrust bearing of the prior art that space structure is little, small investment, is convenient to machining and bearing capacity is big.The higher axial load that produces in the time of can bearing work, thus the transmission accuracy that the tumbler vibration improves main shaft reduced.
2, can shorten the main shaft stress point, reduce main axis length, make main shaft stressed more even.
3, because plane thrust bearing price of the prior art is higher, the utility model adopts asymmetric bearing version, can reduce investment, has also reduced vibration complete machine structure and weight of equipment simultaneously, makes manufacturing, installs, adjusts and keep in repair more convenient.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Among the figure: 101. feed end assemblies; 102. journal bearing; 103. front-end bearing pedestal; 104. asymmetric oil film hydrodynamic thrust bearing; 105. planar axes bearing; 106. main shaft; 107. journal bearing; 108. rear bearing block.
The specific embodiment
As shown in Figure 1, at the front end fixed installation journal bearing 102 of main shaft 106, fixed installation journal bearing 107 in rear end is installed asymmetric oil film hydrodynamic thrust bearing 104 in the center fixed of main shaft 106.Fixing feed end assembly 101 on the main shaft 106 of the front end of journal bearing 102, fixing front axle bearing sleeve 103 on the outer ring of journal bearing 102, fixed pan bearing holder (housing, cover) 105 on the outer ring of asymmetric oil film hydrodynamic thrust bearing 104, fixing rear bearing block 108 on the outer ring of journal bearing 107.Wherein: the journal bearing 102 of main shaft 106 front ends and the journal bearing 107 of rear end play the radial support effect, and supporting spindle 106 and keep main shaft to be in certain radial position normally rotates main shaft 106 respectively.The journal bearing 107 of rear end also can play to be eliminated processing and the error of bringing three supporting decentraction is installed, and guarantees equipment and operating accuracy.Middle asymmetric oil film hydrodynamic thrust bearing 104 between journal bearing 102 and journal bearing 107, the axial force that produces when mainly bearing work, the play back and forth of prevention main shaft 106, and other parts such as maintenance main shaft 106 and support have relative axial location.
Claims (2)
1. the spindle support structure of a defibrator, front end fixed installation journal bearing (102) at main shaft (106), fixed installation journal bearing (107) in rear end is characterized in that: in the center fixed of main shaft (106) asymmetric oil film hydrodynamic thrust bearing (104) is installed.
2. the spindle support structure of a kind of defibrator according to claim 1, it is characterized in that: the main shaft (106) at the front end of journal bearing (102) is gone up fixedly feed end assembly (101), fixing front axle bearing sleeve (103) on the outer ring of journal bearing (102), fixed pan bearing holder (housing, cover) (105) on the outer ring of asymmetric oil film hydrodynamic thrust bearing (104), fixing rear bearing block (108) on the outer ring of journal bearing (107).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200397203U CN201598527U (en) | 2009-04-29 | 2009-04-29 | Spindle supporting structure of defibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200397203U CN201598527U (en) | 2009-04-29 | 2009-04-29 | Spindle supporting structure of defibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201598527U true CN201598527U (en) | 2010-10-06 |
Family
ID=42809576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200397203U Expired - Fee Related CN201598527U (en) | 2009-04-29 | 2009-04-29 | Spindle supporting structure of defibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201598527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532636A (en) * | 2014-12-31 | 2015-04-22 | 南京林业大学 | Hot mill grinding device |
-
2009
- 2009-04-29 CN CN2009200397203U patent/CN201598527U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532636A (en) * | 2014-12-31 | 2015-04-22 | 南京林业大学 | Hot mill grinding device |
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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: 20101006 Termination date: 20180429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |