CN203159002U - Flat type composite steel belt guide pulley - Google Patents
Flat type composite steel belt guide pulley Download PDFInfo
- Publication number
- CN203159002U CN203159002U CN 201320154411 CN201320154411U CN203159002U CN 203159002 U CN203159002 U CN 203159002U CN 201320154411 CN201320154411 CN 201320154411 CN 201320154411 U CN201320154411 U CN 201320154411U CN 203159002 U CN203159002 U CN 203159002U
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- Prior art keywords
- composite steel
- steel band
- guide groove
- steel belt
- leading sheave
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Abstract
The utility model discloses a flat type composite steel belt guide pulley which comprises guide grooves. The flat type composite steel belt guide pulley is characterized in that the guide grooves are grooves with flat bottoms. The flat type composite steel belt guide pulley can not only achieve automatic centering of a composite steel belt, guarantee that the composite steel belt stably operate in each guide groove, completely avoid a deflection phenomenon of the composite steel belt, but also improve a stress state of the composite steel belt, the service life of the flat type composite steel belt guide pulley is prolonged, and meanwhile vibration and noise are reduced. The flat type composite steel belt guide pulley can be used as a dragging running wheel or a guide wheel or a cage roof wheel or a cage bottom wheel or a counter-weight wheel of an elevator and the like, and is indeed suitable for long-time running of the elevator. The installation process of the elevator is simplified, and meanwhile the service life of the composite steel belt is prolonged.
Description
Technical field
The utility model relates to the elevator field, a kind of pulley for flat pattern composite steel band guiding particularly, and this pulley is mainly as the traction sheave on the elevator, track adjusting wheel, crosshead sheave, sedan-chair return pulley, counterweight wheel etc.
Background technology
Elevator is as a kind of vertical transport instrument, closely bound up with modern society life, along with The development in society and economy and quickening of urbanization process, make high-rise more and more, and high-rise has become the sign in a city, some in addition become the terrestrial reference in city.Along with appearance and the socio-cultural development of high-rise, be more and more powerful for the demand of elevator, particularly entered today of social senilization, the meaning of elevator is more great.Every day born a large amount of stream of peoples and the transportation of logistics all in running by global elevator, and it is extremely important that the effect that elevator is born in building has become, and is the indispensable part of modern society's life.
Traditional elevator mainly uses steel rope as traction and the carrier hung, and steel rope is carrying the weight of car and counterweight not only as safety component, especially as the carrier of traction, drives lift car and turns round up and down.Steel rope has been used many years as the elevator vitals, but its shortcoming also is very tangible, and steel rope has big, the easy wearing and tearing of rolled steel dosage, discontinuity, needs lubricate, can get rusty, maintain shortcomings such as trouble, installation requirement height.Therefore, development along with elevator technology, the trend of steel rope has appearred replacing with composite steel band, and will be main flow future, the advantage of composite steel band is that steel rope is incomparable, and composite steel band also has its shortcoming certainly, such as the easy sideslip of composite steel band left and right sides migration, cause vibration of elevator to produce noise, also aggravated the wearing and tearing of composite steel band simultaneously.
For avoiding composite steel band departing from pulley, existing pulley for example Chinese patent 00805967.5 and 201020530296.5, national standard (standard No. is GB/T11358-1999) etc. all is partial to adopt drum type groove 8a(such as Fig. 1), Chinese patent 200480043744.6 adopts concave slot 8b(such as Fig. 2), this kind grooved has tangential force to produce, thereby guarantees that composite steel band moves to the center on wheel.But will cause the internal stress of band middle part like this greater than both sides, and the general flakiness ratio of traditional flat rubber belting is bigger, internal stress obtains cambic release at Width.But the width of employed band and thickness are than smaller on the elevator, adopt such technical scheme, wanting greatly of the stressed periphery of composite steel band centre portion, the be squeezed overplate at top of the overplate of composite steel band bottom then is stretched, the steel band discontinuity, cause composite steel band overplate cracking easily and steel band is damaged, and when wheel turnover wheel face contact with composite steel band to understand and experiences the cross section bending, external force does not disappear when not contacting thereafter, band reverts to the plane, internal stress changes rapid relatively, has the flexural fatigue phenomenon, and number of run acquires a certain degree, the inner wire wire rope core occurs separating with integument, cause the middle part cracking, then composite steel band is scrapped, and operation life reduces.With regard to present production technology, the cost of composite steel band still is higher, is about 8～10 times of steel rope cost, therefore should take into full account the service life of composite steel band.
Also there are some designs to adopt the concaveconvex shape composite steel band, for example Chinese patent 200810061529.9, change in shape at composite steel band exactly, increase male and fomale(M﹠F) (or adopting polywedge bet), also correspondingly make male and fomale(M﹠F) on the race, though also can effectively realize the guiding of composite steel band, but the critical defect of this structure is exactly to cause the friction coefficient of composite steel band and race bigger, composite steel band can't skid, according to elevator standard, no matter which kind of reason of elevator is trapped in the hoistway, should allow steel rope to skid at rope sheave, this kind structure can't realize skidding, and therefore, its application is very limited.In addition, it is higher compared with common platypelloid type steel band to manufacture the cost of this kind concaveconvex shape composite steel band.
Summary of the invention
For addressing the above problem, the purpose of this utility model provides a kind of flat pattern composite steel band leading sheave, can steadily lead to the flat pattern composite steel band, prevent the migration of the composite steel band left and right sides and sideslip, can not influence the service life of flat pattern composite steel band again, more reasonable on the structure, the composite steel band strained condition is better.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of flat pattern composite steel band leading sheave, comprise guide groove, and it is characterized in that: described guide groove is flat bottomed recess.
The bottom land of described guide groove is straight, and side walls is formed slopely inclined flange, and sidewall and bottom land rounding off.
The angle on the sidewall of described guide groove and bottom land plane 〉=90 °.
The size of described guide groove bottom land is greater than the size 2-5mm of used composite steel band.
The degree of depth of described guide groove is greater than 2mm.
By arc transition, and the transition arc of bottom land and sidewall has and has only one between the bottom land of described guide groove and the two side.
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 an above guide groove.
The described flange that is not less than 3mm by thickness between the guide groove in twos separates, and flange constitutes the sidewall of guide groove.
Described leading sheave is traction sheave, track adjusting wheel, crosshead sheave, sedan-chair return pulley or the counterweight wheel of elevator.
The utility model is by offering specially designed guide groove at leading sheave, not only can realize the composite steel band automatic centering, guarantee composite steel band smooth running in guide groove, avoided the deviation phenomenon of composite steel band fully, but also improve the strained condition of composite steel band, prolong its service life, reduce vibration and noise simultaneously.Owing to can make the composite steel band automatic centering through specially designed guide groove, prevent its sideslip or deviate from, only composite steel band need be put in the groove in the time of actual installation and be got final product, need not accurately to carry out centering, compare with other grooveds, has very large advantage, composite steel band sideslip problem and unbalance stress problem have been solved on the one hand, it is excessive and can not problem of slip also to have solved employing concaveconvex shape composite steel band and rope sheave friction coefficient on the other hand, really be applicable to the long-time running of elevator, guarantee the service life of composite steel band when having simplified the mounting process of elevator.
Description of drawings
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 utility model;
Fig. 4 is the A portion enlarged drawing of Fig. 3;
Fig. 5 is the B portion enlarged drawing of Fig. 3.
The specific embodiment
A kind of flat pattern composite steel band leading sheave of the present utility model can be as traction sheave, track adjusting wheel, crosshead sheave, sedan-chair return pulley or the counterweight wheel etc. of elevator, on each traction sheave, track adjusting wheel, crosshead sheave, sedan-chair return pulley, the counterweight wheel identical grooved can be set.Be that object lesson is described in further detail the utility model below in conjunction with accompanying drawing and elevator crosshead sheave, but the utility model 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, are used for crosshead sheave 1 is installed in the sedan-chair head piece.Crosshead sheave 1 is provided with a plurality of guide grooves 8.
Shown in Fig. 4,5, guide groove 8 is flat bottomed recess, can make composite steel band 22 automatic centerings, guarantee composite steel band 22 smooth running in guide groove 8, avoided the deviation phenomenon of composite steel band 22 fully, order is stressed even to composite steel band 22 again simultaneously, can not cause cracking because local pressure is excessive.
Preferably, the bottom land 81 of guide groove 8 is straight, side walls 82 is formed slopely inclined flange, and sidewall 82 and bottom land 81 rounding ofves, it is stressed more even when the centre portion of composite steel band 22 is turned round in guide groove 8, compare such as structures such as arc surface or convex surfaces with other structures, more reasonable on the structure, composite steel band 22 strained conditiones are better.Best, the sidewall 82 of guide groove 8 and angle α 〉=90 on bottom land 81 planes °.By circular arc 83 transition, and the transition arc 83 of bottom land 81 and sidewall 82 has and has only one between the bottom land 81 of guide groove 8 and the two side 82.Best, the radius R of the transition arc 83 of guide groove bottom land 81 and two side 82 is greater than 0.8mm.
Preferably, the width dimensions of guide groove bottom land 81 is greater than the width dimensions 2-5mm of used composite steel band 22.In the present embodiment, guide groove 8 is reserved about 1.5mm respectively in the both sides of composite steel band 22.Because composite steel band 22 width dimensions are less than or equal to described steel band trench bottom 81 sizes, when making composite steel band 22 sideslips, under the force action of two side 82, all the time composite steel band 22 is maintained midway location, reduced the inertia of composite steel band 22 left and right sides migration in guide groove 8 greatly, also reduce simultaneously the friction of composite steel band 22 with two side 82, realized the steadily purpose of guiding of composite steel band 22.Preferably, the depth H of guide groove 8 is greater than 2mm, and composite steel band 22 can not skid off guide groove, has fully guaranteed its guiding.
In the present embodiment, crosshead sheave 1 is provided with a plurality of guide grooves 8.A plurality of guide grooves 8 adopt identical grooved.The flange 3 that is not less than 3mm by thickness between the guide groove 8 separates in twos, and flange 3 constitutes the sidewall 82 of guide grooves 8.
By description of listed embodiment, basic design of the present utility model and groundwork have been set forth.But the utility model is not limited to above-mentioned listed embodiment.
Claims (10)
1. a flat pattern composite steel band leading sheave comprises guide groove, it is characterized in that: described guide groove is flat bottomed recess.
2. flat pattern composite steel band leading sheave according to claim 1, it is characterized in that: the bottom land of described guide groove is straight, and side walls is formed slopely inclined flange, and sidewall and bottom land rounding off.
3. flat pattern composite steel band leading sheave according to claim 2 is characterized in that: angle 〉=90 on the sidewall of described guide groove and bottom land plane °.
4. flat pattern composite steel band leading sheave according to claim 1, it is characterized in that: the size of described guide groove bottom land is greater than the size 2-5mm of used composite steel band.
5. flat pattern composite steel band leading sheave according to claim 1, it is characterized in that: the degree of depth of described guide groove is greater than 2mm.
6. flat pattern composite steel band leading sheave according to claim 2 is characterized in that: by arc transition, and the transition arc of bottom land and sidewall has and has only one between the bottom land of described guide groove and the two side.
7. flat pattern composite steel band leading sheave according to claim 6, it is characterized in that: the radius of the transition arc of described guide groove bottom land and two side is greater than 0.8mm.
8. flat pattern composite steel band leading sheave according to claim 1, it is characterized in that: described leading sheave is provided with an above guide groove.
9. flat pattern composite steel band leading sheave according to claim 8 is characterized in that: the described flange that is not less than 3mm by thickness between the guide groove in twos separates, and flange constitutes the sidewall of guide groove.
10. according to the described flat pattern composite steel band of the arbitrary claim of claim 1-9 leading sheave, it is characterized in that: described leading sheave is traction sheave, track adjusting wheel, crosshead sheave, sedan-chair return pulley or the counterweight wheel of elevator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154411 CN203159002U (en) | 2013-03-29 | 2013-03-29 | Flat type composite steel belt guide pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320154411 CN203159002U (en) | 2013-03-29 | 2013-03-29 | Flat type composite steel belt guide pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203159002U true CN203159002U (en) | 2013-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320154411 Expired - Lifetime CN203159002U (en) | 2013-03-29 | 2013-03-29 | Flat type composite steel belt guide pulley |
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| Country | Link |
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| CN (1) | CN203159002U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159116A (en) * | 2013-03-29 | 2013-06-19 | 广州广日电梯工业有限公司 | Plate-type composite steel belt leading sheave |
| WO2015172379A1 (en) * | 2014-05-16 | 2015-11-19 | Inventio Ag | Lift installation |
-
2013
- 2013-03-29 CN CN 201320154411 patent/CN203159002U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159116A (en) * | 2013-03-29 | 2013-06-19 | 广州广日电梯工业有限公司 | Plate-type composite steel belt leading sheave |
| CN103159116B (en) * | 2013-03-29 | 2015-08-19 | 广州广日电梯工业有限公司 | Plate-type composite steel belt leading sheave |
| WO2015172379A1 (en) * | 2014-05-16 | 2015-11-19 | Inventio Ag | Lift installation |
| CN106232515A (en) * | 2014-05-16 | 2016-12-14 | 因温特奥股份公司 | Lift facility |
| EP3142954A4 (en) * | 2014-05-16 | 2018-01-17 | Inventio AG | Lift installation |
| CN106232515B (en) * | 2014-05-16 | 2019-07-26 | 因温特奥股份公司 | Lift facility |
| US10486942B2 (en) | 2014-05-16 | 2019-11-26 | Inventio Ag | Elevator installation roller with restraining element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |