CN203173655U - Traction system for elevator - Google Patents
Traction system for elevator Download PDFInfo
- Publication number
- CN203173655U CN203173655U CN 201320156016 CN201320156016U CN203173655U CN 203173655 U CN203173655 U CN 203173655U CN 201320156016 CN201320156016 CN 201320156016 CN 201320156016 U CN201320156016 U CN 201320156016U CN 203173655 U CN203173655 U CN 203173655U
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- elevator
- leading sheave
- guide groove
- composite steel
- steel band
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Abstract
The utility model discloses a traction system for an elevator. The traction system comprises an elevator cage frame, an elevator mainframe, guide pulleys on a counterpoise, and a composite steel belt which sequentially rotates around the guide pulleys, wherein the guide pulleys are an integrated structure of wheels and a main bearing shaft, the main bearing shaft is provided with guide slots for forming the guide pulleys, and the guide slots are flat-bottom slots. According to the traction system for the elevator, on the one hand, problems of off-tracking and uneven stress of the composite steel belt are solved; on the other hand, the problem that the concave-convex composite steel belt and the rope wheels cannot be slipped due to too high friction coefficients can be solved, so that the traction system is truly suitable for long-term operation of the elevator; and meanwhile, the wheel shaft integrated structure is adopted, the rigidity and strength are better, a security coefficient is higher, elevator equipment and the whole structure of the elevator can be simplified, so that the structure is more compact; and the space of an elevator well which the elevator equipment occupies is reduced, so that the well space can be effectively saved.
Description
Technical field
The utility model relates to the elevator field, particularly a kind of elevator traction system.
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 55a(such as Figure 18), Chinese patent 200480043744.6 adopts concave slot 55b(such as Figure 19), 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.
In addition, be the described pulley assembly of CN1714038A as the Chinese patent publication number, its leading sheave is fixed on the mandrel by accessories such as bearings, pulley rotates around mandrel, and mandrel maintains static, this kind complex structure, in the time of bearing failure, changing can be pretty troublesome, and because diameter of pulley own is little, the centre also needs bearing, cause axle diameter very little, when mandrel was long, its rigidity and intensity were difficult to guarantee, have potential safety hazard.
Summary of the invention
For addressing the above problem, the purpose of this utility model provides a kind of elevator traction system, be used by specially designed pulley and composite steel band, 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, lift facility and elevator complete machine structure are simplified simultaneously, and structure is compacter.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of elevator traction system, comprise the leading sheave that is installed on lift car frame, elevator main and the counterweight, walk around the composite steel band of aforementioned leading sheave successively, it is characterized in that: described leading sheave is the structure of wheel with load-bearing integrated spindle axis formula, the load-bearing main shaft is provided with guide groove and constitutes leading sheave, and this guide groove is flat bottomed recess.
The size of described guide groove bottom land is greater than the size 2-5mm of used composite steel band.
Described leading sheave two ends are provided with rolling bearing units or bearing seat.
Be installed in the leading sheave on lift car frame, elevator main and the counterweight, corresponding same composite steel band guide groove line of centers at grade.Purpose is in order to guarantee that composite steel band moves, and is unlikely to overlapping interference in guide groove separately.
The described leading sheave that is installed on the lift car frame is one or two, when leading sheave is one, be installed in the centre of the entablatrance of lift car frame, when leading sheave is two, be installed in position, the left and right sides or front and back position on the lift car top of the trellis respectively.
Be provided with an above transition leading sheave between described lift car frame leading sheave and the elevator main leading sheave.
Described leading sheave is provided with an above guide groove, when described leading sheave is provided with a plurality of guide groove, composite steel band is used with the guide groove that is positioned at both sides, if guide groove quantity is odd number, a middle guide groove is left a blank, if guide groove quantity is even number, two middle guide grooves are left a blank.
When two leading sheaves were installed in position, the left and right sides on the lift car top of the trellis respectively, the position of cage guide was corresponding between the guide groove of the outermost both sides of leading sheave.
The shape of the guide groove of described each leading sheave, measure-alike.
The bottom land of described guide groove is straight, and side walls is formed slopely inclined flange, and sidewall and bottom land rounding off; Described composite steel band dual-side is circular arc or wedge shape.
The utility model has solved composite steel band sideslip problem and unbalance stress problem 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, adopt the wheel shaft integral structure simultaneously, its rigidity and intensity are better, safety factor is higher, and make that lift facility and elevator complete machine structure are simplified, structure is compacter, therefore the lift facility space that takies elevator hoistways is dwindled, thereby has saved hoistway space effectively.
Description of drawings
Fig. 1～3rd, the partial schematic diagram of the arrangement lateral plan, birds-eye view and the lift car that are provided with computer room structure of the utility model embodiment 1 (no leading sheave transition between elevator main and the car frame leading sheave);
Fig. 4 is the enlarged drawing of the pulley assembly assembled on the utility model lift car;
Fig. 5 is the enlarged drawing of the pulley assembly assembled on the utility model elevator main;
Fig. 6 is the enlarged drawing of the pulley assembly assembled on the utility model counterweight;
Fig. 7 is the position signal enlarged drawing of the utility model composite steel band in guide groove;
Fig. 8 is the section drawing of several composite steel bands of the present utility model;
Fig. 9～11st, the partial schematic diagram of the arrangement lateral plan, birds-eye view and the lift car that are provided with computer room structure of the utility model embodiment 2 (two track adjusting wheel transition are arranged between elevator main and the car frame leading sheave, and car frame has two leading sheaves);
Figure 12～14th, the partial schematic diagram of the arrangement lateral plan, birds-eye view and the lift car that are provided with computer room structure of the utility model embodiment 3 (two track adjusting wheel transition are arranged between elevator main and the car frame leading sheave, and car frame has only a leading sheave)
Figure 15-the 17th, the partial schematic diagram of the structure scheme lateral plan, birds-eye view and the lift car that do not have machine room of the utility model embodiment 4 (no leading sheave transition between elevator main and the car frame leading sheave)
Figure 18 is drum type groove on the traction axle of elevator traction machine in the prior art and the force analysis figure of composite steel band;
Figure 19 is concave slot on the traction axle of elevator traction machine in the prior art and the force analysis figure of composite steel band;
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail, but the utility model is not limited to this specific examples.Embodiment 1
The utility model is a kind of elevator traction system 10, as Fig. 1, comprise the leading sheave of being located at respectively on lift car frame 11, elevator main 12 and the counterweight 13 14,15,16, and leading sheave 14,15, the 16th, through improving design, can perform well in the guiding of flat pattern composite steel band 17.Owing to adopt composite steel band 17 as hanging and the traction assemblies, composite steel band 17 is made up of multistrand rope, and the diameter of steel rope can be less than 2mm, and then leading sheave 14,15,16 diameter can be 80mm, and that present embodiment designs is 95mm.Reducing of leading sheave diameter can be integrated pulley and load-bearing main shaft.Namely mean 13 needs assemblings of lift car frame 11, elevator main 12 and counterweight sheave shaft (also being the load-bearing main shaft), and sheave shaft is provided with through specially designed guide groove 55 and gets final product.Do not need to assemble again other accessories such as bearing in the middle of the sheave shaft, only need to get final product at two ends assembling bearing seat or rolling bearing units, in case bearing failure, it is just passable to change rolling bearing units or bearing seat, repair and maintenance for later elevator provide very big convenience, have alleviated the work capacity that the repair and maintenance personnel change bearing greatly, because rolling bearing units or bearing seat are designed to modularization, directly replacing gets final product, and need not involve the replacing of other parts.Rigidity and the intensity of wheel shaft integral structure are better, and diameter is about 100mm, can bear heavier weight, and safety factor is higher.
As Fig. 1～Figure 3 shows that arrangement that is provided with computer room structure, composite steel band 17 is fixed with custom-designed fag end tapered sleeve 18 in car one side, walk around two leading sheaves 14 on lift car frame 11 entablatrances then, walk around the leading sheave (traction sheave) 15 on the elevator main 12 again, the last leading sheave of walking around again on the counterweight 13 16, composite steel band 17 finally in that heavy side is fixed with custom-designed fag end tapered sleeve 19, constitutes a kind of elevator traction system that the utility model will be illustrated.No leading sheave transition between elevator main 12 and the car frame leading sheave 14, car frame leading sheave 14 is placed in the front and back position on lift car frame 11 tops respectively, realizes the simplification of elevator system configuration.After installing, the leading sheave on lift car frame, elevator main and counterweight, corresponding same composite steel band guide groove line of centers at grade, can guarantee that composite steel band moves, and is unlikely to overlapping interference in guide groove separately.
As shown in Figure 4 to 7, all have specially designed guide groove 55 on the leading sheave 14,15,16, and be one to one, to guarantee that composite steel band 17 can not produce distortion.Leading sheave 14,15,16 is not traditional track adjusting wheel, and they are combinations of track adjusting wheel (traction sheave) and load-bearing main shaft.When leading sheave 14 provides guiding for composite steel band 17, also as the load-bearing main shaft of whole carriage, rotate round shaft centre line; When leading sheave 15 provides guiding for composite steel band 17, also as the whole elevator device load-bearing main shaft of (comprising car, counterweight etc.), rotate round shaft centre line; When leading sheave 16 provides guiding for composite steel band 17, also as the load-bearing main shaft of whole counterweight, rotate round shaft centre line.Can be known by above-mentioned, be integrated just because of track adjusting wheel (traction sheave) and load-bearing main shaft, add the composite steel band that has adopted the very little steel rope of diameter, so lift facility is elevator main particularly, its volume is reduced greatly, and the layout in hoistway has more alerting ability, reduces to take the elevator hoistways space, the hoistway degree of utilization is promoted greatly, crucial meaning and advantage place that this designs for the utility model.
Guide groove 55 is flat bottomed recess, can make composite steel band 17 automatic centerings, guarantee composite steel band 17 smooth running in guide groove 55, avoid the deviation phenomenon of composite steel band 17 fully, order is stressed even to composite steel band 17 again simultaneously, can not cause cracking because local pressure is excessive.
Preferably, the width dimensions of guide groove 55 bottom lands is greater than the width dimensions 2-5mm of used composite steel band 22.In the present embodiment, guide groove 55 is reserved about 1.5mm respectively in the both sides of composite steel band 17.Because composite steel band 17 width dimensions are less than or equal to described guide groove bottom land size, when making composite steel band 17 sideslips, under the force action of two side, all the time composite steel band 17 is maintained midway location, reduced the inertia of composite steel band 17 left and right sides migration in guide groove 55 greatly, also reduce simultaneously the friction of clad steel 17 with the two side, realized the steadily purpose of guiding of composite steel band 17.
The bottom land of guide groove 55 is straight, and side walls is formed slopely inclined flange, and sidewall and bottom land rounding off; The structure of composite steel band as shown in Figure 8, and is preferred, and dual-side is square (the i structure among Fig. 8), circular arc (the ii structure among Fig. 8) or convex (the iii structure among Fig. 8), and wherein circular arc and convex more are conducive to the transition with guide groove 55.
In the present embodiment, leading sheave 14,15,16 is provided with a plurality of guide grooves 55.A plurality of guide grooves 55 adopt identical grooved.When leading sheave is provided with a plurality of guide groove 55, composite steel band 17 should be used with the guide groove 55 that is positioned at both sides, for example, if guide groove quantity is odd number, a middle guide groove is left a blank, if guide groove quantity is even number, two middle guide grooves are left a blank, and purpose is to lead boots, lubricant plug, guide rail etc. to the interference effect of composite steel band in order to avoid.
Be depicted as the arrangement that is provided with computer room structure as Fig. 9～11, two leading sheave 20 transition are arranged between the leading sheave 15 of elevator main 12 and the leading sheave 14 of car frame 11, leading sheave 14 is placed in the front and back position on lift car frame 11 tops respectively, realizes the simplification of elevator system configuration.Cage side and can vertical display to the composite steel band 17 of heavy side simultaneously without deviation angle, has greatly improved to the operational effect of elevator.
Other structures are with embodiment 1.
Embodiment 3
As Figure 12～14 for being provided with the arrangement of computer room structure, two leading sheave 20 transition are arranged between the leading sheave 15 of elevator main 12 and the leading sheave 14 of car frame 11, the leading sheave 14 of car frame 11 is placed in the centre of car frame 11 entablatrances, realizes the simplification of elevator system configuration.Cage side and can vertical display to the composite steel band 17 of heavy side simultaneously without deviation angle, has greatly improved to the operational effect of elevator.In addition, also save a leading sheave 14 on the car frame 11, reduced the cost of elevator.
Other structures are with embodiment 1.
Embodiment 4
As Figure 15～shown in Figure 17, machine room is not set in the present embodiment, composite steel band 17 is fixed with custom-designed fag end tapered sleeve 18 in car one side, walk around two leading sheaves 14 on lift car frame 11 entablatrances then, walk around the leading sheave (traction sheave) 15 on the elevator main 12 again, the last leading sheave of walking around again on the counterweight 13 16, composite steel band 17 finally in that heavy side is fixed with custom-designed fag end tapered sleeve 19, constitute a kind of elevator traction system that the utility model will be illustrated.No leading sheave transition between elevator main 12 and the car frame leading sheave 14, car frame leading sheave 14 is placed in the position, the left and right sides on lift car frame 11 tops respectively, realizes the simplification of elevator system configuration.When two leading sheaves were installed in position, the left and right sides on the lift car frame 11 respectively, the position of cage guide 21 was corresponding between the outermost both sides of the leading sheave guide groove 55.Because cage guide 21 is in and hangs line of centers, composite steel band 17 makes car stressed evenly in cage guide 21 both sides symmetric arrangement, be not easy to produce unbalance loading, in the time of the safety tongs action, can not produce bigger car inclination, satisfy GB to the requirement of car inclination.
Other structures are with embodiment 1.
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. elevator traction system, comprise the leading sheave that is installed on lift car frame, elevator main and the counterweight, walk around the composite steel band of aforementioned leading sheave successively, it is characterized in that: described leading sheave is the structure of wheel with load-bearing integrated spindle axis formula, the load-bearing main shaft is provided with guide groove and constitutes leading sheave, and this guide groove is flat bottomed recess.
2. elevator traction according to claim 1 system, 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.
3. elevator traction according to claim 1 system, it is characterized in that: described leading sheave two ends are provided with rolling bearing units or bearing seat.
4. elevator traction according to claim 1 system is characterized in that: be installed in the leading sheave on lift car frame, elevator main and the counterweight, corresponding same composite steel band guide groove line of centers at grade.
5. elevator traction according to claim 1 system, it is characterized in that: the described leading sheave that is installed on the lift car frame is one or two, when leading sheave is one, be installed in the centre of the entablatrance of lift car frame, when leading sheave is two, be installed in position, the left and right sides or front and back position on the lift car top of the trellis respectively.
6. elevator traction according to claim 1 system is characterized in that: be provided with an above transition leading sheave between described lift car frame leading sheave and the elevator main leading sheave.
7. elevator traction according to claim 4 system, it is characterized in that: described leading sheave is provided with an above guide groove, when described leading sheave is provided with a plurality of guide groove, composite steel band is used with the guide groove that is positioned at both sides, if guide groove quantity is odd number, a middle guide groove is left a blank, if guide groove quantity is even number, two middle guide grooves are left a blank.
8. according to claim 1 or 7 described elevator traction systems, it is characterized in that: when two leading sheaves were installed in position, the left and right sides on the lift car top of the trellis respectively, the position of cage guide was corresponding between the guide groove of the outermost both sides of leading sheave.
9. according to claim 1 or 6 described elevator traction systems, it is characterized in that: the shape of the guide groove of described each leading sheave, measure-alike.
10. according to the described elevator traction of the arbitrary claim of claim 1-7 system, 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; Described composite steel band dual-side is square, circular arc or convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156016 CN203173655U (en) | 2013-03-29 | 2013-03-29 | Traction system for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320156016 CN203173655U (en) | 2013-03-29 | 2013-03-29 | Traction system for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203173655U true CN203173655U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320156016 Withdrawn - After Issue CN203173655U (en) | 2013-03-29 | 2013-03-29 | Traction system for elevator |
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| Country | Link |
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| CN (1) | CN203173655U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171953A (en) * | 2013-03-29 | 2013-06-26 | 广州广日电梯工业有限公司 | Elevator traction system |
| CN106044458A (en) * | 2016-08-12 | 2016-10-26 | 山东富士制御电梯有限公司 | Integral lower wheel beam for mounting steel belt diversion sheaves and steel belt guide wheels |
| CN108584618A (en) * | 2018-06-12 | 2018-09-28 | 深圳市特种设备安全检验研究院 | The test device and test method of composite steel band equlvalent coefficient of friction |
-
2013
- 2013-03-29 CN CN 201320156016 patent/CN203173655U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103171953A (en) * | 2013-03-29 | 2013-06-26 | 广州广日电梯工业有限公司 | Elevator traction system |
| CN103171953B (en) * | 2013-03-29 | 2015-10-28 | 广州广日电梯工业有限公司 | Elevator traction system |
| CN106044458A (en) * | 2016-08-12 | 2016-10-26 | 山东富士制御电梯有限公司 | Integral lower wheel beam for mounting steel belt diversion sheaves and steel belt guide wheels |
| CN108584618A (en) * | 2018-06-12 | 2018-09-28 | 深圳市特种设备安全检验研究院 | The test device and test method of composite steel band equlvalent coefficient of friction |
| CN108584618B (en) * | 2018-06-12 | 2024-05-07 | 深圳市质量安全检验检测研究院 | Test device and test method for equivalent friction coefficient of composite steel belt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130904 Effective date of abandoning: 20151028 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |