CN102505163A - Split eccentric adjustment mechanism for mounting edge - Google Patents
Split eccentric adjustment mechanism for mounting edge Download PDFInfo
- Publication number
- CN102505163A CN102505163A CN2011103551411A CN201110355141A CN102505163A CN 102505163 A CN102505163 A CN 102505163A CN 2011103551411 A CN2011103551411 A CN 2011103551411A CN 201110355141 A CN201110355141 A CN 201110355141A CN 102505163 A CN102505163 A CN 102505163A
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- mounting flange
- bearing sleeve
- eccentric shaft
- shaft bearing
- bearing bush
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Abstract
The invention provides a split offset adjustment mechanism for a mounting edge, which comprises an eccentric bearing bush and a mounting flange. An eccentricity A is reserved between the center of an outer circle of the eccentric bearing bush and the center of circle of an inner hole of the eccentric bearing bush, the eccentric bearing bush is mounted in a box hole of carbon fiber spinning drafting equipment, the outer circle of the eccentric bearing bush fits the box hole, the inner hole of the eccentric bearing bush fits the outer circle of a supporting bearing of a drum shaft, the mounting flange is fixed to the eccentric bearing bush in such way that bolts are matched with pins, a central axis of the mounting flange and the central axis of the outer circle of the eccentric bearing bush coincide with each other, the diameter of the outer circle of the mounting flange is larger than that of the outer circle of the eccentric bearing bush, the outer periphery of the mounting flange is provided with an axial groove used for leading the mounting flange to rotate around the central axis of the mounting flange when the axial groove is knocked by external force, and N graduation marks are evenly and peripherally distributed on the outer periphery of a mounting edge of the flange to facilitate calculation of adjustment amount. The split offset adjustment mechanism meets the requirement on implementation of high-precision control in use of existing precision manufacturing equipment.
Description
Technical field
The present invention relates to the accurate adjustment technology of roller axle field among the carbon fiber preparation technology, be specially the eccentric adjustment that a kind of separate type is installed the limit.
Background technology
Carbon fibre composite can be applied to national defence high-tech areas such as Aeronautics and Astronautics, weapons, also is widely used in civilian industries such as sports apparatus, weaving, chemical machineries, and development prospect is wide.High-grade carbon fiber wire is a basic material of making carbon fibre composite, external limiting inlet, the related data and the information of also blocking Processes and apparatus.Domestic owing to key technologies such as PAN (polyacrylonitrile) precursor fail to solve; Though also can produce some carbon fibers; Because of backward in technique, performance is low, of poor quality, cost is high, expensive, be difficult to industrialized mass production, has limited the development and the expanding application of composite.
The main preparation were established of PAN base carbon fibre silk is polymerization, spinning, hydrogenation, the carbonization polymerization of polyacrylonitrile, and the spinning draft apparatus is the key equipment in the carbon fiber preparation process.The spinning draft apparatus constitutes roller system by some roller axles, uses through the drawing-off of precursor between the roller axle and accomplishes spinning process.Precursor credit rating key depends on the roll surface radial beat eccentricity and the surface roughness of drawing machine roller axle.
Based on the needs of large-scale industrial production, the requirement of counter extensioin machine is: outstanding long 1000mm, assembling back roller face total length radial jerk value are not more than 0.005mm for
roller stretches out, the roll surface surface roughness is Ra0.4 to possess spinning, the roller diameter that carries out 5 bundle polyacrylonitrile fibrils simultaneously.Amount of deflection, the box body hole of analysis-by-synthesis roller axle are factors such as mismachining tolerance, bearing accuracy, only depend on the appropriate design of the existing accuracy of manufacture and bearing type selecting, axle can't guarantee designing requirement, must design a kind of guiding mechanism to guarantee the circular runout requirement of roll surface.
Summary of the invention
The technical problem that solves
For solving the problem that prior art exists; The present invention proposes the eccentric adjustment that a kind of separate type is installed the limit; Make under existing accuracy of manufacture condition, can realize that also the roller axle index of beating can reach designing requirement, guarantee the credit rating requirement of the carbon fibre precursor of producing.
Technical scheme
Technical scheme of the present invention is:
Said a kind of separate type is installed the eccentric adjustment on limit, it is characterized in that: comprise eccentric shaft bearing sleeve and mounting flange; Have eccentric throw A between the eccentric shaft bearing sleeve cylindrical center of circle and the endoporus center of circle, the eccentric shaft bearing sleeve is installed in the box body hole of carbon fiber spinning draft apparatus, and eccentric shaft bearing sleeve cylindrical cooperates with box body hole, and eccentric shaft bearing sleeve endoporus cooperates with roller shaft support bearing cylindrical; Mounting flange and eccentric shaft bearing sleeve are through bolt and pin matching and fixing; Wherein mounting flange central axis and eccentric shaft bearing sleeve cylindrical central axes; The mounting flange outside diameter is greater than eccentric shaft bearing sleeve outside diameter; On the mounting flange periphery, have axial groove, when being used for external force and knocking axial groove, mounting flange is rotated around self central axis; On the periphery of flange installation limit, also indicate N lattice scale, be convenient to calculate adjustment amount along circumferentially being uniformly distributed with.
Beneficial effect
The present invention can control the adjustment amount eccentric adjustment through being provided with; Realized having satisfied the High Accuracy Control of stretching out the roller face total length radial jerk value of outstanding long roller from the another one angle in the requirement of using realization High Accuracy Control under the existing accuracy of manufacture appointed condition to long.
Description of drawings
Fig. 1: the scheme of installation of the present invention in carbon fiber spinning draft apparatus;
Fig. 2: the structural representation of eccentric shaft bearing sleeve;
Fig. 3: the structural representation of mounting flange;
Wherein: 1, alignment pin; 2, mounting flange; 3, bearing; 4, eccentric shaft bearing sleeve; 5, fastening bolt; 6, casing; 7, roller shaft assembly.
The specific embodiment
Below in conjunction with specific embodiment the present invention is described:
Present embodiment is to be used for polyacrylonitrile spinning draft apparatus; Wherein outstanding long 1000mm, requirement assembling back roller face total length radial jerk value are not more than 0.005mm to roller diameter for
roller stretches out, the roll surface surface roughness is Ra0.4; If the eccentric adjustment that does not adopt the present invention to propose; Under existing accuracy of manufacture condition; Can't realize assembling back roller face total length radial jerk value and be not more than the designing requirement of 0.005mm, so need to adopt the eccentric adjustment of the present invention's proposition.
With reference to accompanying drawing 1; The present invention includes eccentric shaft bearing sleeve 4 and mounting flange 2; Eccentric shaft bearing sleeve 4 is installed in the box body hole of polyacrylonitrile spinning draft apparatus casing 6, and eccentric shaft bearing sleeve 4 cylindricals cooperate with box body hole, and eccentric shaft bearing sleeve 4 endoporus cooperate with roller shaft support bearing 3 cylindricals.Mounting flange 2 and eccentric shaft bearing sleeve 4 are through a plurality of fastening bolts 5 and alignment pin 1 matching and fixing, wherein mounting flange 2 central axis and eccentric shaft bearing sleeve 4 cylindrical central axes.
With reference to accompanying drawing 2; There is eccentric throw 0.05mm between the eccentric shaft bearing sleeve cylindrical center of circle and the endoporus center of circle; When obtaining eccentric shaft bearing sleeve cylindrical and in box body hole, rotating; The eccentric shaft bearing sleeve endoporus center of circle will be that radius is made circular motion with 0.05mm around the eccentric shaft bearing sleeve cylindrical center of circle, thereby move between-0.05mm to 0.05mm at the roller axle center that drives bearing 3 and supporting thereof.The axial thread hole that capacity eccentric bearing puts except be useful on the fixing purposes of mounting flange, can also when assembling, be impetus with interior bolt of packing into, the capacity eccentric bearing cover is assembled to the position.Groove in the eccentric shaft bearing sleeve on the circle is used to dismantle bearing 3.
With reference to accompanying drawing 3, mounting flange and eccentric shaft bearing sleeve are isolating constructions, are fixedly connected with alignment pin through fastening bolt, and the purpose that adopts such isolating construction is the assembling for the ease of eccentric shaft bearing sleeve and bearing 3.Can find out from the body structure of accompanying drawing 1 and bearing configuration, if mounting flange and eccentric shaft bearing sleeve are made of one, then after the bearing (bearing that does not promptly have an end of installing and adjusting mechanism) of front end and roller axle are packed casing into; Whole mounting flange and eccentric shaft bearing sleeve could be installed; Push bearing 3 at last again, this moment, the inside and outside circle of bearing 3 must be urged into the position simultaneously, and the inner ring of bearing 3 and roller axle adopt the H6/k6 interference fits; The gap that 0.01～0.02mm is only arranged that cooperates of bearing 3 peripheries and eccentric shaft bearing sleeve endoporus; To hand assembled, have a little when pushing bearing 3 crooked, will block and can't continue the assembling.For ease of assembled in situ; The eccentric shaft bearing sleeve is separated with the eccentric shaft bearing sleeve; Earlier bearing 3 is contained on the roller axle with temperature differential method, again capacity eccentric bearing is sleeved on bearing 3 peripheries, like this; Eccentric shaft bearing sleeve and bearing 3 just can advance mounting flange with the bearing of the front end casing endoporus of packing into simultaneously at last again from the rear.
The mounting flange outside diameter is greater than eccentric shaft bearing sleeve outside diameter; On the mounting flange periphery, have axial groove, when adjustment, instruments such as available screwdriver knock axial groove; Make mounting flange around self central axis rotation; And then drive the eccentric shaft bearing sleeve and rotate around the cylindrical central axis, this moment is corresponding, and the central axis of bearing 3 will eccentric rotary; For the ease of calculating adjustment amount, on the periphery of flange installation limit, also indicate 90 lattice scales along circumferentially being uniformly distributed with, every lattice are 4 degree, and revolution moves 1 lattice, and the variation 0.05*4/180=0.001mm of bearing 3 central axis can meet design requirement.
Claims (1)
1. a separate type is installed the eccentric adjustment on limit, it is characterized in that: comprise eccentric shaft bearing sleeve and mounting flange; Have eccentric throw A between the eccentric shaft bearing sleeve cylindrical center of circle and the endoporus center of circle, the eccentric shaft bearing sleeve is installed in the box body hole of carbon fiber spinning draft apparatus, and eccentric shaft bearing sleeve cylindrical cooperates with box body hole, and eccentric shaft bearing sleeve endoporus cooperates with roller shaft support bearing cylindrical; Mounting flange and eccentric shaft bearing sleeve are through bolt and pin matching and fixing; Wherein mounting flange central axis and eccentric shaft bearing sleeve cylindrical central axes; The mounting flange outside diameter is greater than eccentric shaft bearing sleeve outside diameter; On the mounting flange periphery, have axial groove, when being used for external force and knocking axial groove, mounting flange is rotated around self central axis; On the periphery of flange installation limit, also indicate N lattice scale, be convenient to calculate adjustment amount along circumferentially being uniformly distributed with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103551411A CN102505163A (en) | 2011-11-10 | 2011-11-10 | Split eccentric adjustment mechanism for mounting edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103551411A CN102505163A (en) | 2011-11-10 | 2011-11-10 | Split eccentric adjustment mechanism for mounting edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102505163A true CN102505163A (en) | 2012-06-20 |
Family
ID=46217291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103551411A Pending CN102505163A (en) | 2011-11-10 | 2011-11-10 | Split eccentric adjustment mechanism for mounting edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102505163A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711791A (en) * | 2013-12-26 | 2014-04-09 | 常熟长城轴承有限公司 | Composite bearing with eccentric structure |
| CN111377195A (en) * | 2020-03-10 | 2020-07-07 | 中冶陕压重工设备有限公司 | Belt conveyor with adjustable roller height and installation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2133373Y (en) * | 1992-07-25 | 1993-05-19 | 长沙钢厂 | Low-speed 45deg. non-twisting external tooth drive continuous rolling mill |
| CN1126809A (en) * | 1995-01-08 | 1996-07-17 | 黄瑞蓂 | Speed varying mechanism and its processing method |
| CN2366193Y (en) * | 1997-09-15 | 2000-03-01 | 首钢总公司 | Integral bearing type high stiffness rolling mill |
-
2011
- 2011-11-10 CN CN2011103551411A patent/CN102505163A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2133373Y (en) * | 1992-07-25 | 1993-05-19 | 长沙钢厂 | Low-speed 45deg. non-twisting external tooth drive continuous rolling mill |
| CN1126809A (en) * | 1995-01-08 | 1996-07-17 | 黄瑞蓂 | Speed varying mechanism and its processing method |
| CN2366193Y (en) * | 1997-09-15 | 2000-03-01 | 首钢总公司 | Integral bearing type high stiffness rolling mill |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711791A (en) * | 2013-12-26 | 2014-04-09 | 常熟长城轴承有限公司 | Composite bearing with eccentric structure |
| CN111377195A (en) * | 2020-03-10 | 2020-07-07 | 中冶陕压重工设备有限公司 | Belt conveyor with adjustable roller height and installation method thereof |
| CN111377195B (en) * | 2020-03-10 | 2024-06-04 | 中冶陕压重工设备有限公司 | Belt conveyor with height-adjustable roller and installation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120620 |