CN102888771A - Improved spindle of thermo grinding machine - Google Patents
Improved spindle of thermo grinding machine Download PDFInfo
- Publication number
- CN102888771A CN102888771A CN 201210069598 CN201210069598A CN102888771A CN 102888771 A CN102888771 A CN 102888771A CN 201210069598 CN201210069598 CN 201210069598 CN 201210069598 A CN201210069598 A CN 201210069598A CN 102888771 A CN102888771 A CN 102888771A
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- Prior art keywords
- bearing
- spindle
- main shaft
- improved
- roller bearing
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- Support Of The Bearing (AREA)
Abstract
The invention discloses an improved spindle of a thermo grinding machine. The improved spindle comprises a spindle, a front bearing seat, a front bearing sleeve, an oil cylinder body, a piston rod, a rear bearing sleeve and a rear bearing seat and is characterized in that a single-row cylindrical roller bearing is arranged at the front end of the spindle; a spherical self-aligning roller bearing is arranged at the tail end of the spindle; and a back-to-back thrusting bearing assembly is arranged at the middle end of the spindle. The improved spindle system is high in supporting rigidity, self-aligning precision and bearing capacity, simple in structure, convenient to adjust and long in service life, and can stably and reliably work.
Description
Technical field
The present invention relates to the defibrator structure, particularly a kind of structure-improved of hot grinding mill main axis of high centering precision.
Background technology
Heat mill process is the very important operation of Fibreboard Production, and the defibrator running status how, and especially the centering precision of hot grinding mill main axis system how, and is very huge on fiberboard quality and production cost impact.
Traditional hot grinding mill main axis structure is that a spherical aligning roller bearing is respectively installed at the forward and backward two ends of final drive shaft, thrust bearing of middle installation, this structure is because forward and backward bearing all adopts the spherical aligning roller bearing, cause centering precision relatively poor, do not guarantee the depth of parallelism of meshing of dynamic and static abrasive disc.For improving the hot grinding mill main axis centering precision, in patent " ZL200820035196 ", the front end bearing replacing is become single row roller bearing, intermediate bearing still is an oil film Hydrodynamic Thrust Bearings or spherical roller thrust bearing, although this structure has improved the centering precision of axis system, bearing capacity poor (being about 1/4 bearing), expensive, cost performance is low.
Summary of the invention
Technical problem to be solved by this invention provides the hot grinding mill main axis structure that a kind of centering precision is high, bearing capacity is strong.
For solving the problems of the technologies described above, the invention provides a kind of structure-improved of hot grinding mill main axis, comprise main shaft, front-end bearing pedestal, front axle bearing sleeve, cylinder block, piston rod, rear axle bearing sleeve, rear bearing block, it is characterized in that: front-end of spindle is equipped with that single row roller bearing, main shaft end are equipped with the spherical aligning roller bearing, the main shaft middle-end is equipped with back-to-back thrust bearing and forms.
Single row roller bearing, spherical aligning roller bearing that main shaft front and back ends of the present invention is installed, can play the radial support main shaft on the one hand, the front end single row roller bearing plays the radial centering effect on the other hand, and rear end spherical aligning roller bearing plays corrective action; Be installed on the left and right thrust bearing combination of main shaft middle-end, can bear axial force on the one hand, stop back and forth play of main shaft, can realize respectively on the other hand the forward and back function of main shaft.
The improved system of hot grinding mill main axis of the present invention has that supporting rigidity is good, centering precision is high, bearing capacity is strong, simple in structure, easy to adjust, the superior effects such as stable working reliable, long service life.
Description of drawings
Fig. 1 is structural representation of the present invention;
The number in the figure explanation:
1-main shaft; 2-single row roller bearing;
The combination of 3-thrust bearing; 4-front-end bearing pedestal;
5-front axle bearing sleeve; 6-cylinder block;
7-piston rod; 8-spherical aligning roller bearing;
9-rear axle bearing sleeve; 10-rear bearing block;
31-left thrust bearing; 32-right thrust bearing;
The left chamber of 61-oil cylinder; 62-right cavity of cylinder.
The specific embodiment
Below engage accompanying drawing, the present invention is further described.
The invention provides a kind of structure-improved of hot grinding mill main axis, as shown in Figure 1, this structure comprise main shaft 1, be installed on main shaft 1 front end single row roller bearing 2, be installed on the main shaft end spherical aligning roller bearing 8, be installed on thrust bearing combination 3, front-end bearing pedestal 4, front axle bearing sleeve 5, cylinder block 6, piston rod 7, rear axle bearing sleeve 9, the rear bearing block 10 of main shaft middle-end.
Wherein front-end bearing pedestal 4, rear bearing block 10 are fixed on the defibrator process support, and cylinder block 6 is fixed on the front-end bearing pedestal 4, and thrust bearing combination 3 is comprised of left thrust bearing 31, right thrust bearing 32.
When using, the present invention is installed on the support of defibrator, in the running, the single row roller bearing 2 of main shaft 1 front end can play certralizing ability, terminal spherical aligning roller bearing 8 can play corrective action, fully guarantee the centering precision of axis system, thereby guaranteed the depth of parallelism of meshing of dynamic and static abrasive disc.
In the running, when 61 oil-feed of the left chamber of oil cylinder, pressure oil pushing piston bar 7 moves right, and piston rod 7 drives front axle bearing sleeve 5, and front axle bearing sleeve 5 drives right thrust bearing 32 again and moves, thereby so that main shaft 1 moves right, realizes the fallback function of axis system.When right cavity of cylinder 62 oil-feed, pressure oil pushing piston bar 7 is moved to the left, and piston rod 7 drives left thrust bearing 31 and moves, thereby so that main shaft 1 is moved to the left, realizes the advancement function of axis system.
Claims (1)
1. the structure-improved of a hot grinding mill main axis, comprise main shaft, front-end bearing pedestal, front axle bearing sleeve, cylinder block, piston rod, rear axle bearing sleeve, rear bearing block, it is characterized in that: front-end of spindle is equipped with that single row roller bearing, main shaft end are equipped with the spherical aligning roller bearing, the main shaft middle-end is equipped with back-to-back thrust bearing and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210069598 CN102888771A (en) | 2012-03-16 | 2012-03-16 | Improved spindle of thermo grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210069598 CN102888771A (en) | 2012-03-16 | 2012-03-16 | Improved spindle of thermo grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102888771A true CN102888771A (en) | 2013-01-23 |
Family
ID=47532439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210069598 Pending CN102888771A (en) | 2012-03-16 | 2012-03-16 | Improved spindle of thermo grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102888771A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328728A (en) * | 2019-07-24 | 2019-10-15 | 镇江中福马机械有限公司 | A kind of control mechanism for the feeding of defibrator mill |
| CN112388782A (en) * | 2020-11-13 | 2021-02-23 | 新沂市大自然木业有限公司 | Efficient defibrator for manufacturing fiber raw materials and working method thereof |
-
2012
- 2012-03-16 CN CN 201210069598 patent/CN102888771A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328728A (en) * | 2019-07-24 | 2019-10-15 | 镇江中福马机械有限公司 | A kind of control mechanism for the feeding of defibrator mill |
| CN112388782A (en) * | 2020-11-13 | 2021-02-23 | 新沂市大自然木业有限公司 | Efficient defibrator for manufacturing fiber raw materials and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130123 |