CN103233973B - A kind of slip three watts of combination bearings for screw axis - Google Patents
A kind of slip three watts of combination bearings for screw axis Download PDFInfo
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- CN103233973B CN103233973B CN201310158589.3A CN201310158589A CN103233973B CN 103233973 B CN103233973 B CN 103233973B CN 201310158589 A CN201310158589 A CN 201310158589A CN 103233973 B CN103233973 B CN 103233973B
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- 230000008878 coupling Effects 0.000 claims abstract description 22
- 238000010168 coupling process Methods 0.000 claims abstract description 22
- 238000005859 coupling reaction Methods 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims description 5
- 210000004907 gland Anatomy 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 4
- 239000002131 composite material Substances 0.000 abstract description 2
- 230000001788 irregular Effects 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
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- 239000003779 heat-resistant material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
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- 238000007363 ring formation reaction Methods 0.000 description 1
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Abstract
The present invention relates to screw ship unloader or other are for vertically, the flexible intermediate support composite structure of elongated screw axis in the screw conveyer of large inclined angle conveying, refer in particular to a kind of slip three watts of combination bearings between two screw axis on coupling shaft that can absorb high-speed screw radial imbalance force, comprise outer tube body, described outer tube body is fixed with a watt seat, watt seat is provided with bar-shaped bearing shell, bar-shaped bearing shell to be located in watt seat and can to slide axially along a watt seat, watt seat outer end is fixed with blind nut by screw thread, bar-shaped bearing shell one end by spring-loaded on blind nut, the bar-shaped bearing shell the other end is bearing on the coupling shaft of screw axis.Bar-shaped bearing shell not only play supporting role but also adapt to the characteristic that when axle system rotates, its axis radial direction is rocked at random to screw axis, adopt spring can absorb additional radial imbalance force because quality mal-distribution causes simultaneously, avoid surface of friction pair extruding force excessive cause irregular wear and this unbalanced force to cause machine vibration, rock.
Description
Technical field
The present invention relates to screw ship unloader or other are for the flexible intermediate support composite structure of elongated screw axis in the screw conveyer of vertical, large inclined angle conveying, refer in particular to a kind of slip three watts of combination bearings between two screw axis on coupling shaft that can absorb high-speed screw radial imbalance force.
Background technique
According to tubular vertical screw conveyer conveying mechanism, require that in pipe, tube wall is close to by powder, then could be pushed to top by the spiral in rotation, be close to the radial force of tube wall then from the centrifugal force that spiral drives powder High Rotation Speed to produce.It is generally acknowledged and only have when its rotating speed is greater than critical speed of rotation to certain diameter spiral, centrifugal force is enough large, and powder could upwards be carried.In order to improve transfer efficiency, revolution speed of screw design time usually select between 350-500rpm, the total length of spiral at 10-30m, quality by hundreds of kilograms to thousands of kilograms.Can imagine: so large quality slender axles, only realize high-speed smooth by two supports and rotate very difficult, therefore must establish place's intermediate support along the axial of spiral every 4-5m.Domestic and international existing various intermediate support is mostly stiff shaft tile-type sliding bearing, bearing shell number mostly is 2, also 4 slices are had, supporting portion is many on coupling shaft 1 neck of two screw axis to joint, watt seat 1-4 be arranged on carrier pipe 1-1 wall stretches in pipe, allow bearing shell 1-3, FE Tiler 1-5 can wrap up axle 1 axle journal that is connected, form supporting, as shown in accompanying drawing Fig. 1; Also have and fill a pair reinforced wear-resisting short helical-blade 2-3 of Hough shape on connection axle journal, and form intermediate support, with the periphery of this helical blade as shown in accompanying drawing Fig. 3 with the adjustable bearing shell 2-2 be arranged on carrier pipe 2-1 inwall.Be subject to the impact of the factor such as screw conveyer stiffness by itself, structure, applying working condition, manufacture and installation precision, during this kind of intermediate support runs, coaxial precision is lower, thus easy to wear, the life-span is short, and with larger vibration and noise.Can not provide comparatively high-axiality for vertical spiral conveyer high-speed fine major axis, simultaneously high-speed fine long spire axle is as a larger solid of rotation, sole mass distribution also can not absolute uniform symmetrical, the radial imbalance force produced during rotation improves with rotating speed and increases.
Summary of the invention
For overcoming the above problems, the invention provides a kind of structure simple, coaxial precision is high, and can absorb radial imbalance force thus can slip three watts of combination bearings of smooth working.
A kind of slip three watts of combination bearings for screw axis, comprise outer tube body, described outer tube body is fixed with a watt seat, watt seat is provided with bar-shaped bearing shell, bar-shaped bearing shell to be located in watt seat and can to slide axially along a watt seat, watt seat outer end is fixed with blind nut by screw thread, and bar-shaped bearing shell one end is by spring-loaded on blind nut, and the bar-shaped bearing shell the other end is bearing on the coupling shaft of screw axis.
Further, described outer tube body is fixed with watt seat that 3 have cambered surface tiles head, 3 watts of seats are all provided with bar-shaped bearing shell, and 3 watts of seats are respectively in 120o angle.
Further, described bar-shaped bearing shell top is provided with tapped hole, and the hollow guide rod successively through blind nut and spring is arranged on tapped hole.
Further, the external cylindrical surface of described bar-shaped bearing shell is provided with axial oil groove, and oil groove communicates with hollow guide rod through bar-shaped bearing shell internal gutter.
Further, bar-shaped bearing shell is provided with axial spline groove, and spline pin one end is fixed on watt seat, and the other end is inserted in spline groove.
Further, the supporting surface that described bar-shaped bearing shell is bearing in one end of screw axis is an arc surface identical with the journal diameter of screw axis, and this supporting surface is provided with carbide mosaic part.
Further, described watt of seat comprises the connectivity kit for installing blind nut.
Further, described blind nut and watt seat are connected by threaded adjusting the load that the degree of depth comes on control spring.
Further, described three watts of seats are close to the cylindrical hole that screw axis surrounds by composition mutually.
Further, the cylindrical hole both ends of the surface that three watts of seats are close to composition are mutually provided with circular heavy hole, are provided with Hough floating ring in hole, and cover the labyrinth seal of Hough floating ring formation with Hough gland.
Beneficial effect of the present invention is: bar-shaped bearing shell not only play supporting role but also adapt to the characteristic that when axle system rotates, its axis radial direction is rocked at random to screw axis, adopt spring can absorb additional radial imbalance force because quality mal-distribution causes simultaneously, avoid surface of friction pair extruding force excessive cause irregular wear and this unbalanced force to cause machine vibration, rock.Experiment shows that machine turns round near 500rpm, and almost do not have visual vibration and rock, and noise is lower than 80 decibels, effect is extremely desirable.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the stiff shaft tile-type sliding bearing used at present;
Fig. 2 is the A1-A1 cross-sectional view of Fig. 1;
Fig. 3 adopts the reinforced short helical-blade outer rim of Hough shape to make the bearing cross-sectional view supported at present;
Fig. 4 is the A2-A2 cross-sectional view of Fig. 3;
The cross-sectional view of Fig. 5 embodiment of the present invention 1;
The cross-sectional view of Fig. 6 embodiment of the present invention 2;
Fig. 7 is A portion enlarged view in Fig. 6;
The cross section structure schematic diagram of Fig. 8 embodiment of the present invention 2 watts of seats;
Fig. 9 is the A3-A3 cross-sectional view of Fig. 7.
Embodiment
Embodiment 1
By reference to the accompanying drawings 5, a kind of slip three watts of combination bearings for screw axis, comprise outer tube body 3, described outer tube body 3 is fixed with watt seat 5, watt seat 5 is provided with bar-shaped bearing shell 6, bar-shaped bearing shell 6 to be located in watt seat 5 and can to slide axially along watt seat 5, and watt seat 5 top is fixed with described in blind nut 11(by screw thread that blind nut 11 and watt seat 5 can by threaded adjusting blind nut setting depths.), bar-shaped bearing shell 6 one end is bearing on blind nut 11 by spring 10, and bar-shaped bearing shell 6 the other end is bearing on the coupling shaft 1 of screw axis 2.
Wherein, described bar-shaped bearing shell 6 top is provided with tapped hole, and the hollow guide rod 12 successively through blind nut 11 and spring 10 is arranged on tapped hole.The external cylindrical surface of described bar-shaped bearing shell 6 is provided with axial oil groove, and oil groove communicates with hollow guide rod 12 through bar-shaped bearing shell 6 internal gutter.
Preferably, bar-shaped bearing shell 6 is provided with axial spline groove, and spline pin 4 one end is fixed on watt seat 5, and the other end is inserted in spline groove.
Preferably, the supporting surface that described bar-shaped bearing shell 6 is bearing in one end of screw axis 1 is an arc surface identical with the journal diameter of screw axis 1, and this supporting surface is provided with carbide mosaic part 16.Watt seat 5 can also comprise the connectivity kit 7 for installing blind nut 10.
Fig. 5 is a kind of combination bearing proposal plan that can absorb high-speed screw radial imbalance force.Withstood by bar-shaped bearing shell 6 radial direction when connecting coupling shaft 1 high speed rotary of two screw axis 2 in figure, if bar-shaped bearing shell 6 is rigidity, severe crush and wearing and tearing, even machine breakdown between tiling and axial plane must be caused, now because one end of bar-shaped bearing shell 6 is bearing on spring 7.Therefore bar-shaped bearing shell 6 adapts to the low coaxality revolution of coupling shaft 1 by resiliently deformable (axial stretching), and the centrifugal force deflection deformation of simultaneous adaptation whole screw axis 2 because producing in mass eccentricity revolution.Because bar-shaped bearing shell 6 and coupling shaft surface of contact are less than common watt, therefore adopt high-strength, high hard, heat-resistant material manufacture, spline pin 4 prevents rod watt from rotating in watt seat 5, blind nut 8 not only makes spring seat but also adjust body (passing through threaded adjusting) as pre-pressure of the spring, hollow guide rod 12 hollow is also connected with outside fuel supply line, can be this combination bearing conveying lubricant oil or fat.
Embodiment 2
Wherein accompanying drawing 6 is for clarity for 6-9(by reference to the accompanying drawings, only draw the structure of a bar-shaped bearing shell 6, two other structure is identical, angle becomes 120o, the outer tube body 3 of embodiment 2 is as different from Example 1 fixed with the Special-shaped tile seat 5 that 3 have cambered surface tiles head, 3 watts of seats 5 are all provided with bar-shaped bearing shell 6, and 3 watts of seats 5 are 120o angle respectively and are close to.
Accordingly, described three watts of seats 5 are close to the cylindrical hole forming and surrounded by coupling shaft 1 mutually.Preferably, labyrinth seal is formed outside the cylindrical hole covered by Hough floating ring 13 with Hough gland 14.
The described combination bearing that can absorb High Rotation Speed radial imbalance force is a kind of flexible bearing, and the radial imbalance force of geometric accuracy error and change in the revolution of energy random back-off screw axis, is mainly used in pipe screw conveyor that is vertical or large inclined angle operating mode.Accompanying drawing 6-9 discloses the concrete structure of the present embodiment, and it plays its function with the form of assembly.In figure, two flanges of coupling shaft 1 are respectively used to coaxially connect screw axis 2, and the axle journal of coupling shaft 1 is bumped into cemented carbide or other enhancements; Bar-shaped bearing shell 6 is cylindrical body, can slide axially in rod watt cover for seat 5, bar-shaped bearing shell 6 withstands coupling shaft 1 from three directions of distribution 120o, and the theoretic rotational axis of coupling shaft 1 is the straight line by coupling shaft center of circle O, and actual rotational axis changes in the roundlet being the center of circle with O point.The bar-shaped bearing shell 6 of radial 120o distribution is conducive to geometric accuracy skew and the centrifugal force of the radial any direction of coupling shaft 1 compensating screw axis 2.
In addition, spline pin 4 can prevent rod watt radial rotating, and the supporting surface of described bar-shaped bearing shell 6 outer end is an arc surface, identical with the journal diameter of coupling shaft 1, and is also bumped into cemented carbide or other enhancements, the other end of bar-shaped bearing shell 6 is shaped with tapped hole, and in order to connect hollow guide rod 12, the external cylindrical surface of bar-shaped bearing shell 6 is shaped with axial oil groove and spline groove, and oil groove communicates with hollow guide rod 12 through the duct in bar-shaped bearing shell 6 heart portion, to accept outside fuel feeding or fat, bar-shaped bearing shell 6 adjusting shims 8 dresses up one with hollow guide rod 12, insert in watt seat 5, reinstall one group of butterfly spring 10, the precompression of spring 10 is adjusted with blind nut 11, described watt seat 5(is shown in accompanying drawing 7-9) be a special-shaped part with cylindric handle and cambered surface tiles head, when three watts of seats 5 are from sensing center, interval 120o tri-directions, its three cambered surface tiles heads are close to mutually, composition cylindrical hole makes watt seat 5 be provided with integral rigidity and is surrounded by coupling shaft 1, cylindrical hole two ends add Hough gland 14 and are covered by Hough floating ring 13, make it to escape, and form labyrinth seal, the cylindrical handle of watt seat 5 is used for coordinating with the corresponding aperture of connecting sleeve 7, and connecting sleeve 7 coordinates with the connection block set 9 of outer tube member 3 and follows closely with tightening again locates.Finally three parts 9 are assembled into outer tube member 3(combination bearing casing) respective aperture in, and cover manhole cover 15, the combination bearing that can absorb radial imbalance force namely described in composition.Experiment shows that machine turns round near 500rpm, and almost do not have visual vibration and rock, and noise is lower than 80 decibels, effect is extremely desirable.
Claims (9)
1. slip three watts of combination bearings for screw axis, comprise outer tube body (3), it is characterized in that: described outer tube body (3) is fixed with a watt seat (5), watt seat (5) is provided with bar-shaped bearing shell (6), can slide axially along a watt seat (5) in the hole that bar-shaped bearing shell (6) is located at a watt seat (5), watt seat (5) top is fixed with blind nut (11) by screw thread, bar-shaped bearing shell (6) one end is by guide rod (12), spring (10) is bearing on blind nut (11), bar-shaped bearing shell (6) the other end is bearing on the coupling shaft (1) of screw axis (2), described outer tube body (3) is fixed with watt seat (5) that 3 have cambered surface tiles head, bar-shaped bearing shell (6) is all housed in the cylindrical hole of 3 watts of seats (5), and 3 watts of seats (5) are respectively in 120 ° of angles.
2. slip three watts of combination bearings for screw axis according to claim 1, it is characterized in that: described bar-shaped bearing shell (6) top is provided with tapped hole, the hollow guide rod (12) successively through blind nut (11) and spring (10) is arranged on tapped hole.
3. slip three watts of combination bearings for screw axis according to claim 2, it is characterized in that: the external cylindrical surface of described bar-shaped bearing shell (6) is provided with axial oil groove, and oil groove communicates with hollow guide rod (12) through bar-shaped bearing shell (6) internal gutter.
4. slip three watts of combination bearings for screw axis according to claim 1, it is characterized in that: bar-shaped bearing shell (6) is provided with axial spline groove, spline pin (4) one end is fixed on a watt seat (5), and the other end is inserted in spline groove.
5. slip three watts of combination bearings for screw axis according to claim 1, it is characterized in that: the supporting surface that described bar-shaped bearing shell (6) is bearing in one end of coupling shaft (1) be one with the identical arc surface of journal diameter of coupling shaft (1), this supporting surface is provided with carbide mosaic part.
6. slip three watts of combination bearings for screw axis according to claim 1, is characterized in that: described blind nut (11) and a watt seat (5) are connected by threaded adjusting the load that the degree of depth comes on control spring (10).
7. slip three watts of combination bearings for screw axis according to claim 1, is characterized in that: described watt of seat (5) comprises the connectivity kit (7) for installing blind nut (11).
8. slip three watts of combination bearings for screw axis according to claim 1, is characterized in that: described three watts of seats (5) are close to the cylindrical hole forming and surrounded by coupling shaft (1) mutually.
9. slip three watts of combination bearings for screw axis according to claim 8, it is characterized in that: the cylindrical hole both ends of the surface that three watts of seats (5) are close to composition are mutually provided with circular heavy hole, be provided with Hough floating ring (13) in hole, and cover the labyrinth seal of Hough floating ring (13) formation with Hough gland (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310158589.3A CN103233973B (en) | 2013-04-28 | 2013-04-28 | A kind of slip three watts of combination bearings for screw axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310158589.3A CN103233973B (en) | 2013-04-28 | 2013-04-28 | A kind of slip three watts of combination bearings for screw axis |
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| Publication Number | Publication Date |
|---|---|
| CN103233973A CN103233973A (en) | 2013-08-07 |
| CN103233973B true CN103233973B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310158589.3A Active CN103233973B (en) | 2013-04-28 | 2013-04-28 | A kind of slip three watts of combination bearings for screw axis |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106429255B (en) * | 2016-11-23 | 2022-12-06 | 杭州三螺机械设备有限公司 | Strong cold sliding column sliding middle supporting system of screw ship unloader |
| CN107120353A (en) * | 2017-07-07 | 2017-09-01 | 高鹏 | A kind of sliding bearing |
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- 2013-04-28 CN CN201310158589.3A patent/CN103233973B/en active Active
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| CB03 | Change of inventor or designer information |
Inventor after: Zhao Bao Inventor after: Gao Peng Inventor after: Zhou Yingqiang Inventor after: Wang Yixiang Inventor after: Shen Tianxing Inventor after: Wang Zhenxing Inventor after: Yuan Dong Inventor before: Zhao Bao Inventor before: Gao Peng Inventor before: Zhou Yingxiang Inventor before: Wang Yixiang Inventor before: Shen Tianxing Inventor before: Wang Zhenxing Inventor before: Yuan Dong |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHAO PAN GAO PENG ZHOU YINGXIANG WANG YIXIANG SHEN TIANXING WANG ZHENXING YUAN DONG TO: ZHAO PAN GAO PENG ZHOU YINGQIANG WANG YIXIANG SHEN TIANXING WANG ZHENXING YUAN DONG |
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Effective date of registration: 20181225 Address after: 311100 Renhe Street and No. 3 Yan Road, Yuhang District, Hangzhou, Zhejiang Province Patentee after: HANGZHOU AOTUO ELECTROMECHANICAL TECHNOLOGY CO., LTD. Address before: 310000 West Lake Science Park, Sandun Town, Hangzhou City, Zhejiang Province Patentee before: Hangzhou Auto Bulk Materials Unloading Equipment Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 311100 Renhe Street and No. 3 Yan Road, Yuhang District, Hangzhou, Zhejiang Province Patentee after: Hangzhou Aotuo electromechanical Co., Ltd Address before: 311100 Renhe Street and No. 3 Yan Road, Yuhang District, Hangzhou, Zhejiang Province Patentee before: HANGZHOU AOTUO ELECTROMECHANICAL TECHNOLOGY CO., LTD. |