CN201206228Y - Bearing combined structure for hot grinding mill main axis - Google Patents
Bearing combined structure for hot grinding mill main axis Download PDFInfo
- Publication number
- CN201206228Y CN201206228Y CNU2008200351968U CN200820035196U CN201206228Y CN 201206228 Y CN201206228 Y CN 201206228Y CN U2008200351968 U CNU2008200351968 U CN U2008200351968U CN 200820035196 U CN200820035196 U CN 200820035196U CN 201206228 Y CN201206228 Y CN 201206228Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- transmission shaft
- main transmission
- drive shaft
- final drive
- 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
Abstract
The utility model discloses a composite bearing structure of the main transmission shaft of a thermofiner, which comprises the steps of arranging a cylindrical roller radial bearing on the front end of the main transmission shaft; arranging a spherical surface roller tip bearing on the rear end of the main transmission shaft; arranging an intermediate bearing of an oil-film dynamic pressure thrust bearing or a spherical roller thrust bearing on the main transmission shaft between the cylindrical roller radial bearing and the spherical surface roller tip bearing. On the one hand, the structure constitutes the radial support for the main transmission shaft; on the other hand, the structure eliminates the inaccuracy of supporting disalignment caused by processing and installation, and ensures the precision of equipment and work; meanwhile, the structure can stand axial force generated during operation and prevent the main transmission shaft from jumping back and forth. The structure has a high bearing capacity and high precision, and can stand a higher axial load generated during operation, thereby enhancing the kinematic accuracy of the main transmission shaft; the fabrication, the installation, the regulation and the maintenance are very simple and the movement is steady.
Description
Technical field
The utility model relates to the defibrator that the fine equipment of a kind of high-density fiber board assembly line or paper production line system is used, or pan of a steelyard grinding machine, particularly the axis system structure of this defibrator or disc mill.
Background technology
The defibrator commonly used at present or the axis system structure of disc mill are: the front-end and back-end that the cylindrical roller journal bearing are installed in final drive shaft; And respectively front and back bearings is installed on the support, like this, the inner ring of front and back bearings is along with final drive shaft together rotates.The drawback of this structure is: 1, former and later two cylindrical roller journal bearings can cause two bearing decentraction when processing and installation; 2, since final drive shaft when rotated, have and rotate and move forward and backward dual compound motion, the radial and axial power that the system of bearing produces, the phenomenon of play can take place back and forth in final drive shaft.
Summary of the invention
The utility model is to overcome the deficiency that prior art exists, and the bearing combining structure of the better defibrator main shaft of a kind of transmission performance is provided.
The technical solution adopted in the utility model is: the front end that is included in final drive shaft is installed the cylindrical roller journal bearing, at the rear end of final drive shaft mounting spherical roller self-aligning bearing, an intermediate bearing is installed also on the final drive shaft between cylindrical roller journal bearing and the spherical roller self-aligning bearing.
Described intermediate bearing is a kind of oil film hydrodynamic thrust bearing or spherical roller thrust bearing.
The utility model constitutes the radial support to final drive shaft on the one hand with cylindrical roller journal bearing and the combination of spherical roller self-aligning bearing, can play on the other hand and eliminate processing and the error of bringing the supporting decentraction is installed, and guarantees equipment and operating accuracy.Simultaneously, be installed in the axial force that is produced when oil film hydrodynamic thrust bearing on the final drive shaft in the middle of the front and back bearings or spherical roller thrust bearing are used for bearing work, prevent final drive shaft play back and forth.The utility model bearing capacity is big, precision height, the higher axial load that produces in the time of can bearing work, thereby the kinematic accuracy of raising final drive shaft.Manufacturing installation and adjustment maintenance are all very simple, and motion is steady.
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: 1. final drive shaft, 2. front bearing retainer, 3. locking nut, 4. cylindrical roller journal bearing, 5. front axle bearing sleeve, 6. intermediate bearing, 7. plane thrust bearing holder (housing, cover), 8. rear bearing cover, 9. spherical roller self-aligning bearing, 10. stop washer.
The specific embodiment
As shown in Figure 1, front end at final drive shaft 1 is installed cylindrical roller journal bearing 4, at the rear end of final drive shaft 1 mounting spherical roller self-aligning bearing 9, an intermediate bearing 6 is installed also on the final drive shaft 1 between cylindrical roller journal bearing 4 and the spherical roller self-aligning bearing 9.This intermediate bearing 6 can adopt oil film hydrodynamic thrust bearing or spherical roller thrust bearing.
When cylindrical roller journal bearing 4 was installed, cylindrical roller journal bearing 4 was fixed on the final drive shaft 1 with locking nut 3.Front bearing retainer 2 is sealed on the front end of cylindrical roller journal bearing 4.Front axle bearing sleeve 5 is enclosed within on the outer ring of cylindrical roller journal bearing 4.Plane thrust bearing holder (housing, cover) 7 is enclosed within on the outer ring of intermediate bearing 6, and the rear end face of front axle bearing sleeve 5 is connected with the front end face tight fit of plane thrust bearing holder (housing, cover) 7.Rear bearing cover 8 is enclosed within on the outer ring of spherical roller self-aligning bearing 9, and stop washer 10 is installed in the rearmost end of the spherical roller self-aligning bearing 9 in the rear bearing cover 8.The rear end face of plane thrust bearing holder (housing, cover) 7 is connected with the front end face tight fit of rear bearing cover 8.
The utility model is installed on the support of defibrator in use, and at the front end connection movable grinding disc of final drive shaft 1, the rear end is connected by shaft coupling with main motor.Motor output shaft is connected with the final drive shaft 1 of this structure by shaft coupling, bearing cone is with final drive shaft 1 rotation at a high speed under motor drives, the kinetic energy of motor is delivered to Moving plate, drive Moving plate and carry out high speed rotation, sending helical axis here the wood chip that passes through boiling or other fibrous raw material, to wear into fiber be that next procedure is used.
Claims (2)
1. the bearing combining structure of a defibrator main shaft, the front end that is included in final drive shaft (1) is installed cylindrical roller journal bearing (4), it is characterized in that:, on the final drive shaft (1) between cylindrical roller journal bearing (4) and the spherical roller self-aligning bearing (9), an intermediate bearing (6) is installed also at the rear end of final drive shaft (1) mounting spherical roller self-aligning bearing (9).
2. the bearing combining structure of a kind of defibrator main shaft according to claim 1 is characterized in that: described intermediate bearing (6) is a kind of oil film hydrodynamic thrust bearing or spherical roller thrust bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200351968U CN201206228Y (en) | 2008-04-13 | 2008-04-13 | Bearing combined structure for hot grinding mill main axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200351968U CN201206228Y (en) | 2008-04-13 | 2008-04-13 | Bearing combined structure for hot grinding mill main axis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201206228Y true CN201206228Y (en) | 2009-03-11 |
Family
ID=40465295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200351968U Expired - Fee Related CN201206228Y (en) | 2008-04-13 | 2008-04-13 | Bearing combined structure for hot grinding mill main axis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201206228Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308059A (en) * | 2014-10-06 | 2015-01-28 | 苏州蓝王机床工具科技有限公司 | Swinging rolling machine head structure |
| CN104475964A (en) * | 2014-11-21 | 2015-04-01 | 兰州理工大学 | Friction welding machine spindle box structure capable of bearing large torque and large upsetting force |
| CN104532636A (en) * | 2014-12-31 | 2015-04-22 | 南京林业大学 | Hot mill grinding device |
| CN104704948A (en) * | 2015-03-06 | 2015-06-17 | 李阳铭 | Intermediate bearing supported transmission type deep rotary tillage case |
| CN104712740A (en) * | 2015-03-06 | 2015-06-17 | 李阳铭 | Conical roller bearing-supported transmission type powder ridge box |
-
2008
- 2008-04-13 CN CNU2008200351968U patent/CN201206228Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308059A (en) * | 2014-10-06 | 2015-01-28 | 苏州蓝王机床工具科技有限公司 | Swinging rolling machine head structure |
| CN104475964A (en) * | 2014-11-21 | 2015-04-01 | 兰州理工大学 | Friction welding machine spindle box structure capable of bearing large torque and large upsetting force |
| CN104532636A (en) * | 2014-12-31 | 2015-04-22 | 南京林业大学 | Hot mill grinding device |
| CN104704948A (en) * | 2015-03-06 | 2015-06-17 | 李阳铭 | Intermediate bearing supported transmission type deep rotary tillage case |
| CN104712740A (en) * | 2015-03-06 | 2015-06-17 | 李阳铭 | Conical roller bearing-supported transmission type powder ridge box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201206228Y (en) | Bearing combined structure for hot grinding mill main axis | |
| CN101576121B (en) | Static-dynamic mixed oil film bearing | |
| CN201071882Y (en) | Bearing mechanism of gear shaft in high power angle gear transmission | |
| CN101462235B (en) | Composite closed type static pressure guiding rail workstation | |
| CN102672281A (en) | Numerically controlled spiral bevel gear grinding machine | |
| CN101554710A (en) | Integrated outer rotor type direct drive polishing machine turntable | |
| CN102699691A (en) | Precision numerical control rotary workbench | |
| CN102762426A (en) | Actuation unit for an electromechanically actuated disk brake | |
| CN201483356U (en) | Main shaft structure grinder wheelhead | |
| CN102814733A (en) | Large-size end surface processing electric spindle for mixed support of hydrostatic bearing and rolling bearing | |
| CN202622079U (en) | Numerically-controlled spiral bevel gear grinding machine | |
| CN100429044C (en) | High precision overloading composite bearing structure | |
| CN201338195Y (en) | Composite hydrostatic guideway workbench | |
| CN101704117B (en) | High-speed mainshaft bearing constant-pressure pre-loading device | |
| CN203604547U (en) | Reduction gearbox of turboshaft engine | |
| CN201040767Y (en) | Vacuum vertical film plating machine workpiece rotating frame | |
| CN203282178U (en) | Large vertical type high-speed numerically controlled lathe | |
| CN102741051B (en) | Eccentric adjustment on bearings of printing presses | |
| CN201598527U (en) | Spindle supporting structure of defibrator | |
| CN109236851A (en) | Axial series dual thrust self-balancing sliding bearing | |
| CN200940676Y (en) | Planet gear bearing support device | |
| CN107165835A (en) | Mechanical water pump adjustment of blade angle device with compact layout displacement sensing instrument | |
| CN101521430A (en) | Electric main shaft supported by both angular contact ball bearings and radial air bearing | |
| CN201774356U (en) | Constant pressure preloading device for main shaft bearings of high-speed built-in motor | |
| CN102888771A (en) | Improved spindle of thermo grinding machine |
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: 20090311 Termination date: 20170413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |