CN103159116B - Plate-type composite steel belt leading sheave - Google Patents
Plate-type composite steel belt leading sheave Download PDFInfo
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- CN103159116B CN103159116B CN201310109863.8A CN201310109863A CN103159116B CN 103159116 B CN103159116 B CN 103159116B CN 201310109863 A CN201310109863 A CN 201310109863A CN 103159116 B CN103159116 B CN 103159116B
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- composite steel
- steel band
- guide groove
- sheave
- elevator
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Abstract
The invention discloses a kind of Plate-type composite steel belt leading sheave, comprise guide groove, it is characterized in that: described guide groove is flat bottomed recess.The present invention can not only realize composite steel band automatic centering, ensure composite steel band smooth running in guide groove, completely avoid the deviation phenomenon of composite steel band, but also improve the strained condition of composite steel band, extend its service life, reduce vibration and noise simultaneously, the present invention can as the traction sheave on elevator, track adjusting wheel, crosshead sheave, sedan-chair return pulley and to roller etc., really be applicable to the long-time running of elevator, while simplifying the mounting process of elevator, ensure the service life of composite steel band.
Description
Technical field
The present invention relates to elevators field, particularly a kind of for Plate-type composite steel belt guiding pulley, this pulley mainly as the traction sheave on elevator, track adjusting wheel, crosshead sheave, sedan-chair return pulley, to roller etc.
Background technology
Elevator is as a kind of vertical transport instrument, live closely bound up with modern society, along with the quickening of socioeconomic development and urbanization process, high-rise is got more and more, and high-rise has become the mark in a city, some has even become the terrestrial reference in city.Along with appearance and the socio-cultural development of high-rise, the demand for elevator is more and more powerful, particularly enters today of social senilization, and the meaning of elevator is more great.Carry a large amount of stream of peoples and the transport of logistics, the effect that elevator is born between floors has become extremely important all in running every day for global elevator, is that modern society lives an indispensable part.
Traditional elevator mainly uses steel rope as the carrier of traction and hanging, and steel rope, not only as safety component, carries the weight of car and counterweight, especially as the carrier of traction, drives lift car to operate up and down.Steel rope is employed many years as elevator vitals, but its shortcoming is also obviously, steel rope have rolled steel dosage large, easily wearing and tearing, discontinuity, need to lubricate, can get rusty, maintain the shortcoming such as trouble, installation requirement height.Therefore, along with the development of elevator technology, there is the trend replacing steel rope with composite steel band, and future will be main flow, the advantage of composite steel band is that steel rope is incomparable, and certain composite steel band also has its shortcoming, such as the easy sideslip of composite steel band left and right migration, cause vibration of elevator to produce noise, also exacerbate the wearing and tearing of composite steel band simultaneously.
For avoiding composite steel band departing from pulley, existing pulley such as Chinese patent 00805967.5 and 201020530296.5, national standard (standard No. is GB/T11358-1999) etc. are all partial to adopt drum type groove 8a(as Fig. 1), Chinese patent 200480043744.6 adopts concave slot 8b(as Fig. 2), this kind of grooved has tangential force to produce, thus ensures that composite steel band moves at Lun Shangxiang center.But will the internal stress of band middle part be caused to be greater than both sides like this, and the general flakiness ratio of traditional flat rubber belting is larger, internal stress obtains cambic release at Width.But width and the Thickness Ratio of the band that elevator uses are smaller, adopt such technical scheme, composite steel band centre portion is stressed wants large compared with periphery, the be squeezed overplate at top of overplate bottom composite steel band is then stretched, steel band discontinuity, composite steel band overplate is easily caused to ftracture and steel band is damaged, and wheel face contacts with composite steel band and can experience section flexure during turnover wheel, when not contacting thereafter, external force disappears, band reverts to plane, internal stress change relatively sharply, there is flexural fatigue phenomenon, number of run acquires a certain degree, being separated appears in inner wire wire rope core and integument, middle part is caused to be ftractureed, then composite steel band is scrapped, operation life reduces.With regard to current production technology, the cost of composite steel band is still higher, is about 8 ~ 10 times of steel rope cost, therefore should takes into full account the service life of composite steel band.
Also some designs are had to adopt concaveconvex shape composite steel band, such as Chinese patent 200810061529.9, do in shape to change at composite steel band exactly, increase male and fomale(M&F) (or adopting polywedge bet), race also correspondingly makes male and fomale(M&F), although the guiding of composite steel band also effectively can be realized, but the critical defect of this structure is exactly cause the friction coefficient of composite steel band and race larger, composite steel band cannot skid, according to elevator standard, no matter which kind of reason of elevator is trapped in hoistway, steel rope should be allowed to skid on rope sheave, this kind of structure cannot realize skidding, therefore, its application is very limited.In addition, the cost manufacturing this kind of concaveconvex shape composite steel band is higher compared with common platypelloid type steel band.
Summary of the invention
For solving the problem, the object of this invention is to provide a kind of Plate-type composite steel belt leading sheave, steadily can lead to Plate-type composite steel belt, prevent the migration of composite steel band left and right and sideslip, the service life of Plate-type composite steel belt can not be affected again, more reasonable in structure, composite steel band strained condition is better.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of Plate-type composite steel belt leading sheave, comprises guide groove, it is characterized in that: described guide groove is flat bottomed recess.
The bottom land of described guide groove is straight, and the sidewall slope of both sides forms inclined flange, and sidewall and bottom land rounding off.
The sidewall of described guide groove and angle >=90 ° of bottom land plane.
The size of described guide groove bottom land is greater than the size 2-5mm of composite steel band used.
The degree of depth of described guide groove is greater than 2mm.
By arc transition between the bottom land of described guide groove and two side, and the transition arc of bottom land and sidewall has and only has one.
The radius of the transition arc of described guide groove bottom land and two side is greater than 0.8mm.
Described leading sheave is provided with more than one guide groove.
The described flange being not less than 3mm by thickness between guide groove between two separates, and flange forms the sidewall of guide groove.
Described leading sheave is the traction sheave of elevator, track adjusting wheel, crosshead sheave, sedan-chair return pulley or to roller.
The present invention by offering specially designed guide groove on leading sheave, composite steel band automatic centering can not only be realized, ensure composite steel band smooth running in guide groove, completely avoid the deviation phenomenon of composite steel band, but also improve the strained condition of composite steel band, extend its service life, reduce vibration and noise simultaneously.Due to composite steel band automatic centering can be made through specially designed guide groove, prevent its sideslip or deviate from, only need composite steel band be put in groove when actual installation, without the need to accurately carrying out centering, compared with other grooveds, there is very large advantage, solve composite steel band sideslip problem and unbalance stress problem on the one hand, also solve on the other hand and adopt concaveconvex shape composite steel band and the excessive and problem that can not skid of rope sheave friction coefficient, really be applicable to the long-time running of elevator, the service life of composite steel band is ensured while simplifying the mounting process of elevator.
Accompanying drawing explanation
Fig. 1 is the drum type groove of prior art middle pulley and the force analysis figure of composite steel band;
Fig. 2 is the concave slot of prior art middle pulley and the force analysis figure of composite steel band;
Fig. 3 is constructional drawing of the present invention;
Fig. 4 is the A portion enlarged drawing of Fig. 3;
Fig. 5 is the B portion enlarged drawing of Fig. 3.
Detailed description of the invention
A kind of Plate-type composite steel belt leading sheave of the present invention, can be used as the traction sheave of elevator, track adjusting wheel, crosshead sheave, sedan-chair return pulley or to roller etc., each traction sheave, track adjusting wheel, crosshead sheave, sedan-chair return pulley, can arrange identical grooved in roller.Be that object lesson is described in further detail the present invention below in conjunction with accompanying drawing and elevator car overhead sheave, but the present invention is not limited to this specific examples.
As shown in Figure 3, the leading sheave of this example is crosshead sheave 1.Crosshead sheave 1 two ends are provided with bearing 2, for crosshead sheave 1 is arranged on sedan-chair head piece.Crosshead sheave 1 is provided with multiple guide groove 8.
As shown in Figure 4,5, guide groove 8 is flat bottomed recess, composite steel band 22 automatic centering can be made, ensure composite steel band 22 smooth running in guide groove 8, completely avoid the deviation phenomenon of composite steel band 22, order, to composite steel band 22 uniform force, can not cause cracking because local pressure is excessive again simultaneously.
Preferably, the bottom land 81 of guide groove 8 is straight, the sidewall 82 of both sides is formed slopely inclined flange, and sidewall 82 and bottom land 81 rounding off, stressed more even when making the centre portion of composite steel band 22 operate in guide groove 8, with other structural rate as compared with the structure such as arc surface or convex surface, more reasonable in structure, composite steel band 22 strained condition is better.Best, the sidewall 82 of guide groove 8 and angle α >=90 ° of bottom land 81 plane.By circular arc 83 transition between the bottom land 81 of guide groove 8 and two side 82, and bottom land 81 has with the transition arc 83 of sidewall 82 and only has one.Best, guide groove bottom land 81 is greater than 0.8mm with the radius R of the transition arc 83 of two side 82.
Preferably, the width dimensions of guide groove bottom land 81 is greater than the width dimensions 2-5mm of composite steel band 22 used.In the present embodiment, guide groove 8 reserves about 1.5mm respectively in the both sides of composite steel band 22.Because composite steel band 22 width dimensions is less than or equal to described steel band trench bottom 81 size, when making composite steel band 22 sideslip, under the force action of two side 82, all the time composite steel band 22 is maintained midway location, substantially reduce the inertia of composite steel band 22 left and right migration in guide groove 8, also reduce composite steel band 22 and the friction of two side 82 simultaneously, realize the object that composite steel band 22 steadily leads.Preferably, the depth H of guide groove 8 is greater than 2mm, and composite steel band 22 can not skid off guide groove, fully ensure that it leads.
In the present embodiment, crosshead sheave 1 is provided with multiple guide groove 8.Multiple guide groove 8 adopts identical grooved.The flange 3 being not less than 3mm by thickness between guide groove 8 between two separates, and flange 3 forms the sidewall 82 of guide groove 8.
Composite steel band 22 is flats, after installing, composite steel band 22 is limited in guide groove 8 completely, and both sides have the sidewall 82 of tiltedly gear to block, and makes composite steel band 22 can not sideslip, also can not overlying interference between each composite steel band 22, run in each comfortable corresponding guide groove 8.
By description of listed embodiment, basic conception of the present invention and groundwork are set forth.But the invention is not restricted to above-mentioned listed embodiment.
Claims (4)
1. a Plate-type composite steel belt leading sheave, comprises guide groove, it is characterized in that: described guide groove is flat bottomed recess, and bottom land is straight, and the size of bottom land is greater than the size 2-5mm of composite steel band used, and the degree of depth is greater than 2mm; The sidewall slope of both sides and angle >=90 ° of bottom land plane, form inclined flange; By arc transition between sidewall and bottom land, the transition arc of bottom land and sidewall has and only has one, and the radius of transition arc is greater than 0.8mm.
2. Plate-type composite steel belt leading sheave according to claim 1, is characterized in that: described leading sheave is provided with more than one guide groove.
3. Plate-type composite steel belt leading sheave according to claim 2, is characterized in that: the flange being not less than 3mm by thickness between guide groove described between two separates, and flange forms the sidewall of guide groove.
4. the Plate-type composite steel belt leading sheave according to the arbitrary claim of claim 1-3, is characterized in that: described leading sheave is the traction sheave of elevator, track adjusting wheel, crosshead sheave, sedan-chair return pulley or to roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310109863.8A CN103159116B (en) | 2013-03-29 | 2013-03-29 | Plate-type composite steel belt leading sheave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310109863.8A CN103159116B (en) | 2013-03-29 | 2013-03-29 | Plate-type composite steel belt leading sheave |
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| CN103159116A CN103159116A (en) | 2013-06-19 |
| CN103159116B true CN103159116B (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310109863.8A Active CN103159116B (en) | 2013-03-29 | 2013-03-29 | Plate-type composite steel belt leading sheave |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3738915A1 (en) * | 2019-05-15 | 2020-11-18 | China Enfi Engineering Corporation | Koepe hoist |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434915B (en) * | 2013-08-29 | 2016-12-28 | 广州广日电梯工业有限公司 | Promote steel band and the elevator hoisting systems comprising this lifting steel band |
| US10486942B2 (en) * | 2014-05-16 | 2019-11-26 | Inventio Ag | Elevator installation roller with restraining element |
| CN109230947A (en) * | 2018-10-29 | 2019-01-18 | 叶荣伟 | A kind of elevator promotion steel band and its traction race |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102066228A (en) * | 2008-06-16 | 2011-05-18 | 株式会社明电舍 | Flat hoist for elevator |
| CN202148122U (en) * | 2011-07-15 | 2012-02-22 | 黄立成 | Traction device used for elevator traction and transmission |
| CN203159002U (en) * | 2013-03-29 | 2013-08-28 | 广州广日电梯工业有限公司 | Flat type composite steel belt guide pulley |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004001919A (en) * | 2002-05-30 | 2004-01-08 | Otis Elevator Co | Elevator device |
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- 2013-03-29 CN CN201310109863.8A patent/CN103159116B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102066228A (en) * | 2008-06-16 | 2011-05-18 | 株式会社明电舍 | Flat hoist for elevator |
| CN202148122U (en) * | 2011-07-15 | 2012-02-22 | 黄立成 | Traction device used for elevator traction and transmission |
| CN203159002U (en) * | 2013-03-29 | 2013-08-28 | 广州广日电梯工业有限公司 | Flat type composite steel belt guide pulley |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3738915A1 (en) * | 2019-05-15 | 2020-11-18 | China Enfi Engineering Corporation | Koepe hoist |
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| CN103159116A (en) | 2013-06-19 |
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