CN103557228A - Universal pulley with adjustable gap - Google Patents
Universal pulley with adjustable gap Download PDFInfo
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- CN103557228A CN103557228A CN201310524066.6A CN201310524066A CN103557228A CN 103557228 A CN103557228 A CN 103557228A CN 201310524066 A CN201310524066 A CN 201310524066A CN 103557228 A CN103557228 A CN 103557228A
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- pulley
- gap
- groups
- adjustable universal
- fixed
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Abstract
The invention discloses a universal pulley with an adjustable gap and relates to the universal pulley. The universal pulley is provided with fixed bolts, two pressing fasteners, a supporting shaft, a U-shaped bracket, a centripetal bearing, a pulley groove hub, two pulley discs, two groups of gap-adjusting jackscrews and two groups of tightening bolts, wherein the supporting shaft is connected to the U-shaped bracket by the fixed bolts through the pressing fasteners; the centripetal bearing is fixed on the supporting shaft by interference fit; the pulley groove hub is fixed on the centripetal bearing by interference fit; the two pulley discs are fixedly connected to the pulley groove hub by the two groups of tightening bolts through threads; the two groups of gap-adjusting jackscrews are fixedly connected to the two pulley discs by threads; the end surfaces of the two gap-adjusting jackscrews are tightly contacted with two ring-shaped side surfaces of the pulley groove hub.
Description
Technical field
The present invention relates to a kind of Universal pulley, especially relate to the adjustable Universal pulley in a kind of gap.
Background technique
The existing pulley for rope guiding, adopts stationary axle pulley more.Stationary axle pulley is fixed because of its central shaft, when rope changes in time into and out of the space plane of holding place, often because adapting to the variation of rope plane, de-rope phenomenon occurs.Common pulley, the gap of its pulley groove is fixed, and therefore cannot adjust according to the size of rope diameter the gap of pulley groove; If the groove of pulley is very deeply very narrow, adopting general processing method to process can difficult.Existing pulley mechanism not yet finds effectively to avoid de-rope phenomenon and the adjustable Universal pulley in gap.
Summary of the invention
The object of the present invention is to provide that pulley center point position coordinate is fixed, attitude coordinate is without constraint, can either overcome de-rope phenomenon, can adjust pulley gap according to tow rope diameter again, mechanism is simply compact, with low cost, the adjustable Universal pulley in a kind of gap of easy processing and assembling.
The present invention is provided with fixing bolt, 2 compression buckles, back shaft, U-shaped support, radial bearing, pulley groove hub, 2 pulley discs, 2 groups of tune gap jackscrews and 2 groups of tight fixed bolts;
Described back shaft is connected on U-shaped support by fixing bolt by compressing buckle, and described radial bearing is fixed on back shaft by interference fit, and described pulley groove hub is fixed on radial bearing by interference fit; Described 2 pulley discs are threaded connection and are fixed on pulley groove hub by 2 groups of tight fixed bolts; Described 2 groups of tune gap jackscrews are threaded connection and are fixed on 2 pulley discs, adjust the end face of gap jackscrews to contact with 2 annular side tightenings of pulley groove hub for 2 groups.
Described compression buckle can have the semicircle slotted eye matching with back shaft, and described compression buckle can have the through hole matching with fixing bolt.Described back shaft can be multidiameter shaft, and the semicircle slotted eye of multidiameter shaft and U-shaped support and compression buckle adopts interference fit.
Described U-shaped support bottom can be equipped with the through hole that counterbore, taper hole maybe can guarantee that fixing bolt cap is not interfered with pulley disc, and at support end, has the semicircle slotted eye matching with back shaft, and the tapped hole matching with fixing bolt.
Described radial bearing can adopt standard piece, and the outer radius of radial bearing is no more than the bottom radius of pulley groove hub.
Described pulley groove hub has the tapped hole matching with tight fixed bolt, and the ring surface of pulley groove hub is sunk in the circular groove of pulley disc, avoids the folder rope phenomenon occurring because of pulley groove hub and pulley disc gap.
Described pulley disc has the through hole matching with tight fixed bolt, and with the tapped hole of adjusting gap jackscrew to match.
Described tune gap jackscrew can adopt hexagonal screw in standard, standard one word fluting screw or standard cross fluting screw etc. without nut screw, to reduce pulley thickness.
Described tight fixed bolt can be selected sunk screw, to guarantee that pulley surface is smooth and to reduce pulley thickness.
The invention provides a kind of pulley center point position coordinate and fix (with respect to pulley support), the unconfined Universal pulley of rotary freedom, tool has the following advantages:
1. avoid de-rope.By radial bearing, provide three rotary freedoms, make pulley plane and tow rope plane automatically keep overlapping, thereby effectively avoid recurrent de-rope phenomenon.
2. gap is adjustable.While using when different drag rope, can according to the size of its diameter, adjust the gap of pulley groove, realize highi degree of accuracy, without the guiding of buffeting.
3. easily easily assembling of processing.Without direct processing, by machinery, assemble and form pulley groove gap, therefore use conventional machining method can obtain very deeply very narrow pulley groove gap.
4. simple in structure, compact, good stability, bearing capacity is strong, with low cost easy to maintenance.
Accompanying drawing explanation
Fig. 1 is that the structure of the embodiment of the present invention forms schematic diagram.
Fig. 2 is that the structure of the embodiment of the present invention forms decomposing schematic representation.
Fig. 3 be the embodiment of the present invention turn part sectional view.
Fig. 4 is the kinematics parameters schematic diagram of the embodiment of the present invention.In Fig. 4, be respectively labeled as: R wheel top radius; R is bottom radius; A point represents pulley center point; B, C point represents respectively into and out of the point of contact of end tow rope and pulley groove; P, D point represents respectively into and out of tow rope end points; E, F point represents respectively the intersection point of straight line AP, AD and bottom land circle; G point represents the intersection point of PB, DC elongation line.
Embodiment
As shown in Fig. 1～4, the embodiment of the present invention is provided with 1,2 of 1 group of fixing bolts and compresses the compositions such as 7,2 groups of tune gap jackscrews 8 of 6,2 pulley discs of 5,1 pulley groove hub of 4,1 radial bearing of 3,1 U-shaped support of 2,1 back shaft of buckle and 2 groups of tight fixed bolts 9.Described back shaft 3 is connected on U-shaped support 4 by fixing bolt 1 by compressing buckle 2, and described radial bearing 5 is fixed on back shaft 3 by interference fit, and described pulley groove hub 6 is fixed on radial bearing 5 by interference fit.
Described 2 pulley discs 7 are threaded connection and are fixed on pulley groove hub 6 by 2 groups of tight fixed bolts 9; Described 2 groups of tune gap jackscrews 8 are threaded connection and are fixed on 2 pulley discs 7, and its end face contacts with 2 annular side tightenings of described pulley groove hub 6.The bottom radius of the pulley groove of described pulley groove hub 6 is r, and the wheel top radius of described 2 pulley discs 7 is R.
In the present invention, require the angle theta of AD shown in Fig. 4, AP
pAD< π, can guarantee Universal pulley stable operation and de-rope phenomenon not occur, into and out of end tow rope
with
the maximum angle needing is θ
gmax, the bottom land of Universal pulley, wheel top radius ratio design criterion are:
Described compression buckle 2 has the semicircle slotted eye matching with back shaft 3, and the through hole matching with fixing bolt 1.
Described back shaft 3 is multidiameter shaft, adopts interference fit with the semicircle slotted eye of U-shaped support 4 and compression buckle 2.
Described U-shaped support 4 bottoms are equipped with the through hole that counterbore, taper hole maybe can guarantee that fixing bolt cap is not interfered with described pulley disc 7, and at support end, have the semicircle slotted eye matching with back shaft 3, and the tapped hole matching with fixing bolt 1.
Described radial bearing 5 is standard piece, and the bottom radius that its outer radius must not surpass pulley groove hub 6 is r.
Described pulley groove hub 6 has the tapped hole matching with tight fixed bolt 9, and its ring surface is sunk in the circular groove of pulley disc 7, avoids the folder rope phenomenon occurring because of pulley groove hub and pulley disc gap.
Described pulley disc 7 has the through hole matching with tight fixed bolt 9, and with the tapped hole of adjusting gap jackscrew 8 to match.
Described tune gap jackscrew 8 can adopt hexagonal screw in standard, standard one word fluting screw, standard cross fluting screw etc. without nut screw, to reduce pulley thickness.
Described tight fixed bolt 9 should be selected sunk screw, to guarantee that pulley surface is smooth and to reduce pulley thickness.
Claims (9)
1. the adjustable Universal pulley in gap, is characterized in that being provided with fixing bolt, 2 compression buckles, back shaft, U-shaped support, radial bearing, pulley groove hub, 2 pulley discs, 2 groups of tune gap jackscrews and 2 groups of tight fixed bolts;
Described back shaft is connected on U-shaped support by fixing bolt by compressing buckle, and described radial bearing is fixed on back shaft by interference fit, and described pulley groove hub is fixed on radial bearing by interference fit; Described 2 pulley discs are threaded connection and are fixed on pulley groove hub by 2 groups of tight fixed bolts; Described 2 groups of tune gap jackscrews are threaded connection and are fixed on 2 pulley discs, adjust the end face of gap jackscrews to contact with 2 annular side tightenings of pulley groove hub for 2 groups.
2. the adjustable Universal pulley in gap as claimed in claim 1, is characterized in that described compression buckle has the semicircle slotted eye matching with back shaft, and described compression buckle has the through hole matching with fixing bolt.
3. the adjustable Universal pulley in gap as claimed in claim 1, is characterized in that described back shaft is multidiameter shaft, and multidiameter shaft and U-shaped support and the semicircle slotted eye that compresses buckle adopt interference fit.
4. the adjustable Universal pulley in gap as claimed in claim 1, it is characterized in that described U-shaped support bottom is equipped with the through hole that counterbore, taper hole maybe can guarantee that fixing bolt cap is not interfered with pulley disc, and have the semicircle slotted eye matching with back shaft at support end, and the tapped hole matching with fixing bolt.
5. the adjustable Universal pulley in gap as claimed in claim 1, is characterized in that described radial bearing adopts standard piece, and the outer radius of radial bearing is no more than the bottom radius of pulley groove hub.
6. the adjustable Universal pulley in gap as claimed in claim 1, is characterized in that described pulley groove hub has the tapped hole matching with tight fixed bolt, and the ring surface of pulley groove hub is sunk in the circular groove of pulley disc.
7. the adjustable Universal pulley in gap as claimed in claim 1, is characterized in that described pulley disc has the through hole matching with tight fixed bolt, and with the tapped hole of adjusting gap jackscrew to match.
8. the adjustable Universal pulley in gap as claimed in claim 1, is characterized in that described tune gap jackscrew adopts hexagonal screw in standard, standard one word fluting screw or standard cross fluting screw.
9. the adjustable Universal pulley in gap as claimed in claim 1, is characterized in that described tight fixed bolt selects sunk screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310524066.6A CN103557228B (en) | 2013-10-30 | 2013-10-30 | Universal pulley with adjustable gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310524066.6A CN103557228B (en) | 2013-10-30 | 2013-10-30 | Universal pulley with adjustable gap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103557228A true CN103557228A (en) | 2014-02-05 |
| CN103557228B CN103557228B (en) | 2015-09-09 |
Family
ID=50011555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310524066.6A Active CN103557228B (en) | 2013-10-30 | 2013-10-30 | Universal pulley with adjustable gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103557228B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424056A (en) * | 2016-11-11 | 2017-02-22 | 杭州品联科技有限公司 | Cleaning equipment and photovoltaic module cleaning system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5178473A (en) * | 1983-11-25 | 1993-01-12 | Schubert & Salzer Maschinenfabrik Aktiengesellschaft | Supporting-disk bearing |
| CN2428629Y (en) * | 2000-05-25 | 2001-05-02 | 揭阳市南光实业有限公司 | Universal pulley seat |
| CN2485328Y (en) * | 2001-07-20 | 2002-04-10 | 郑晓燕 | Universal pulley carriage |
| CN2557558Y (en) * | 2002-07-24 | 2003-06-25 | 谢礼杰 | Universal pulley base |
| CN201771957U (en) * | 2010-08-27 | 2011-03-23 | 解建军 | Universal wheel |
| CN201794924U (en) * | 2010-10-09 | 2011-04-13 | 何宏 | Self-aligning ball bearing |
-
2013
- 2013-10-30 CN CN201310524066.6A patent/CN103557228B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5178473A (en) * | 1983-11-25 | 1993-01-12 | Schubert & Salzer Maschinenfabrik Aktiengesellschaft | Supporting-disk bearing |
| CN2428629Y (en) * | 2000-05-25 | 2001-05-02 | 揭阳市南光实业有限公司 | Universal pulley seat |
| CN2485328Y (en) * | 2001-07-20 | 2002-04-10 | 郑晓燕 | Universal pulley carriage |
| CN2557558Y (en) * | 2002-07-24 | 2003-06-25 | 谢礼杰 | Universal pulley base |
| CN201771957U (en) * | 2010-08-27 | 2011-03-23 | 解建军 | Universal wheel |
| CN201794924U (en) * | 2010-10-09 | 2011-04-13 | 何宏 | Self-aligning ball bearing |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424056A (en) * | 2016-11-11 | 2017-02-22 | 杭州品联科技有限公司 | Cleaning equipment and photovoltaic module cleaning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103557228B (en) | 2015-09-09 |
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Address after: 363000 the southern tip of Xiamen University Zhangzhou campus, Zhangzhou, Fujian Patentee after: XIAMEN University Address before: Xiamen City, Fujian Province, 361005 South Siming Road No. 422 Patentee before: XIAMEN University |
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