CN203159003U - Elevator traction machine - Google Patents
Elevator traction machine Download PDFInfo
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- CN203159003U CN203159003U CN 201320155910 CN201320155910U CN203159003U CN 203159003 U CN203159003 U CN 203159003U CN 201320155910 CN201320155910 CN 201320155910 CN 201320155910 U CN201320155910 U CN 201320155910U CN 203159003 U CN203159003 U CN 203159003U
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- guide groove
- traction machine
- elevator traction
- elevator
- composite steel
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Abstract
The utility model discloses an elevator traction machine. The elevator traction machine comprises a drive motor, a base, a left bearing, a right bearing, a brake and a traction shaft which is provided with a guide groove. The elevator traction machine is characterized in that the guide groove in the traction shaft is a flat-base groove. Due to the fact that the guide groove is specially designed in the traction shaft, the elevator traction machine not only can achieve automatic centering of a composite steel belt, guarantees stable running of the composite steel belt in the guide groove, and completely avoids the phenomenon of deflection of the composite steel belt, but also improves the stress state of the composite steel belt. Furthermore, the service life of the elevator traction machine is prolonged, and at the same time, vibration and noise are reduced.
Description
Technical field
The utility model relates to the elevator field, particularly as the elevator traction machine of one of elevator core component.
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.
Elevator traction machine has very large influence to the whole terraced cost of elevator, elevator technology development, elevator structure layout, elevator engineering I﹠M etc.Traditional elevator adopts steel rope as hanging and the traction assembly, according to standard-required, the diameter of traction sheave and guiding must be 40 times of wirerope diameter, because generally all adopting the steel rope of 10mm, so the diameter of traction sheave and guiding is generally 400mm, even bigger.Caused the elevator main volume bigger therefrom, weight is heavier, and carrying is inconvenient, also needs more civil engineering space to hold when expending a large amount of metallic material.
Elevator technology development the employing composite steel band as hanging and the traction assembly in recent years.Composite steel band is made up of multistrand rope, and the diameter of steel rope can be less than 2mm, and this moment, the diameter of traction sheave and track adjusting wheel can be 80mm.Because the traction sheave diameter is reduced greatly, therefore the elevator main volume also dwindles greatly, and because after the reduced, wheel namely is integrated with axle, no longer need other accessories such as bearing, also make structure obtain simplifying when saving a large amount of metallic material, the cost of elevator traction machine is reduced.The space that elevator traction machine takies elevator hoistways is dwindled, thereby has saved hoistway space effectively.Diameter owing to traction sheave reduces greatly simultaneously, and the rotor inertia of elevator main is also reduced, thereby reduces starting current, makes the elevator main operation more steady, reduces vibration and noise.
Owing to adopting the platypelloid type composite steel band as suspension assembly, the diameter of elevator traction wheel can greatly be reduced, but simultaneously because composite steel band is flats, how effective guiding then become key issue for it.Existing technology 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, wheel face contacts with band and can experience the cross section bending during turnover wheel, and external force disappears 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 elevator traction machine, can steadily lead to the flat pattern composite steel band, can not influence the service life of flat pattern composite steel band again.
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 machine, comprise drive motor, base, left bearing, right bearing, drg and be provided with the traction axle of guide groove, it is characterized in that: the guide groove on the described traction axle 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 height of described guide groove is greater than the thickness of composite steel band, and the size of bottom land is greater than the size 2-5mm of used composite steel band.
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.
Distance between the line of centers of described guide groove in twos is not less than 40mm.
Described traction axle two ends are socketed with left bearing, right bearing respectively, and the bearing outside diameter of described left bearing and right bearing is inequality.
But described drg is made up of two groups of independent brake equipments that independent brake is set.
Two groups of brake equipments of described drg are positioned at the same side of traction axle, adopt plate disc brake.
Described drg is connected on the flange, and flange is connected on the base; Comprise in two groups of brake equipments that pressing close to flange for one group produces the brake equipment of braking to it.
Described base is provided with level indicator.
The utility model is by offering specially designed guide groove at the traction axle, 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 drum type groove on the traction axle of elevator traction machine in the prior art and the force analysis figure of composite steel band;
Fig. 2 is concave slot on the traction axle of elevator traction machine in the prior art and the force analysis figure of composite steel band;
Fig. 3 is the constructional drawing (partly cuing open figure) of the utility model elevator traction machine;
Fig. 4 is traction axle of the present utility model and integrated spindle axis formula constructional drawing;
Fig. 5 is the position signal enlarged drawing of composite steel band in the utility model traction axle guide groove.
The specific embodiment
Below in conjunction with accompanying drawing and object lesson the utility model is described in further detail, but the utility model is not limited to this specific examples.
Shown in Fig. 3,4, the utility model is a kind of with the elevator traction machine of flat pattern composite steel band as traction and suspension assembly, can realize the guiding of composite steel band and promote lift car by actv..It comprises: coder 1, Aviation Connector 2, drive motor 3, left bearing 4, base 5, protective cover 6, the traction axle 7 that is provided with guide groove 8, right bearing 9, end cap 10, flange 11, drg 12, level indicator 14 etc.
As shown in Figure 5, guide groove 8 on the described traction axle 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 fully, order is stressed evenly to composite steel band again simultaneously, can not cause cracking because local pressure is excessive.The bottom land 81 of guide groove is straight, and side walls 82 preferably is formed slopely inclined flange, and sidewall 82 and bottom land 81 rounding ofves.Preferably, the height of guide groove 8 is greater than the thickness of composite steel band 22, and the size of bottom land 81 is greater than the size 2-5mm of used composite steel band 22, and in the present embodiment, guide groove 8 is reserved about 1.5mm respectively in the both sides of composite steel band 22.Composite steel band 22 is flats, back composite steel band 22 is installed is limited in fully in the guide groove 8, both sides have the sidewall 82 of oblique retaining to block, and make the composite steel band 22 can sideslip, can overlappingly not interfere operation in each comfortable corresponding guide groove 8 between each composite steel band 22 yet.Because guide groove 8 is higher slightly than composite steel band 22 itself, so composite steel band 22 can not skid off guide groove 8, fully guaranteed its guiding.
Preferably, can separate by the flange 13 that thickness is not less than 3mm between the guide groove 8 in twos, this flange 13 constitutes the sidewall 82 of guide grooves 8.Distance between the line of centers of guide groove 8 is not less than 40mm in twos.
Be socketed with left bearing 4, right bearing 9 respectively at traction axle 7 two ends, and the bearing outside diameter of described left bearing 4 and right bearing 9 is inequality, left bearing 4 external diameters are big, and right bearing 9 external diameters are little.And elevator traction machine of the prior art, its front and back bearings is not generally distinguished size, Chinese patent 201020530296.5 disclosed technology for example, this structure is in actual fabrication technology, bearing assembling situation of difficult will appear, if two bearing outside diameters are all the same, when bearing set is contained on the axle, can't pass the main frame base, difficulty takes place in assembling.Elevator traction machine of the present utility model has adopted small one and large one bearing arrangement, what be fixed on the front is little right bearing 9, what be fixed on the back is big left bearing 4, when two bearing sets are contained on the traction axle 7, when being assembled in traction axle 7 on the base 5 again, can be directly from an end through the other end, and can not make bearing generation jam, little right bearing 9 passes big bearing hole earlier, fix through little bearing hole again, and this moment, big left bearing 4 has solved the problem of main shaft bearing assembling also just through on the big bearing hole.Make the assembly technology of traction axle become easy and simple, improve efficiency of assembling and precision, such design is the most practical beyond doubt for the manufacturing.
Described drg 12 is made up of two groups of independent brake equipments that arrange, every group of brake equipment all can independently play brake action, in the time of one of them damage or inefficacy, another one can also work independently, braking elevator that can be in full force and effect, thus the axle braking device that has solved existing elevator traction machine has only one, when drg damages or lost efficacy, elevator can't effectively be braked, and have the problem of very big potential safety hazard.In the present embodiment, two groups of brake equipments of drg 12 are positioned at the same side of traction axle 7, adopt plate disc brake.Flange 11 connects with base 5 by bolt with end cap 10, and drg 12 connects with flange 11 by bolt.Press close to flange 11 for one group in two groups of brake equipments, produce brake action by rubbing mutually with flange 11, excessive or when damaging, maintain and replace gets up convenient when flange 11 wearing and tearing.
Described base 5 two ends are provided with level indicator 14, have made things convenient for the installation and maintenance personnel to detect the towing machine levelness, guarantee the permanent good running precision of towing machine.For the towing machine that adopts composite steel band traction transmission, it installs the levelness that levelness will influence the traction axle, and then influence cooperating of composite steel band and traction axle, towing machine is installed the out-of-level composite steel band that will cause to the possibility of one-sided slippage, and the tension force between each composite steel band is inconsistent, and the installation levelness of therefore adjusting towing machine is very important.Guide towing machine that horizontality is installed for convenience, make the stressed unanimity of composite steel band, avoid sideslip, and detect in the daily attention stage, towing machine in the present embodiment also is provided with two easy level indicators 14 on main frame base 5 two ends, the installation and maintenance personnel are as long as the bubble situation on the eye-level instrument 14 just can be indicated the levelness that adjust towing machine according to this standard easily.Owing to there is level indicator 14 to guarantee the levelness of towing machine, also make each composite steel band stressed even simultaneously, avoided the composite steel band sideslip, solved a difficult problem that in the past existed.
Protective cover 6 covers traction axle 7, be fixed on the base 5 by hexagonal bar iron, and this bolt can not separation-type, has the slotted hole of inverted U on protective cover 6 limits, easy disassembly.
Owing to adopt composite steel band 22 as hanging and the traction assembly, composite steel band 22 is made up of multistrand rope, the diameter of steel rope can be less than 2mm, by the elevator standard requirement then the diameter of traction sheave can be 80mm, be designed to 95mm in the present embodiment, reducing of traction sheave diameter can be integrated traction sheave and main shaft.Only assemble a traction axle 7 on the elevator traction machine, and traction axle 7 is provided with through specially designed guide groove 8, does not need to assemble again other accessories such as bearing in the middle of the traction axle 7, only need to get final product at its two ends assembling bearing.
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 machine comprises drive motor, base, left bearing, right bearing, drg and is provided with the traction axle of guide groove that it is characterized in that: the guide groove on the described traction axle is flat bottomed recess.
2. elevator traction machine 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. elevator traction machine according to claim 1, it is characterized in that: the height of described guide groove is greater than the thickness of composite steel band, and the size of bottom land is greater than the size 2-5mm of used composite steel band.
4. elevator traction machine according to claim 1 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.
5. elevator traction machine according to claim 1, it is characterized in that: the distance between the line of centers of described guide groove in twos is not less than 40mm.
6. elevator traction machine according to claim 1, it is characterized in that: described traction axle two ends are socketed with left bearing, right bearing respectively, and the bearing outside diameter of described left bearing and right bearing is inequality.
7. elevator traction machine according to claim 1 is characterized in that: but described drg is made up of two groups of independent brake equipments that independent brake are set.
8. elevator traction machine according to claim 7, it is characterized in that: two groups of brake equipments of described drg are positioned at the same side of traction axle, adopt plate disc brake.
9. elevator traction machine according to claim 7, it is characterized in that: described drg is connected on the flange, and flange is connected on the base; Comprise in two groups of brake equipments that pressing close to flange for one group produces the brake equipment of braking to it.
10. elevator traction machine according to claim 1, it is characterized in that: described base is provided with level indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320155910 CN203159003U (en) | 2013-03-29 | 2013-03-29 | Elevator traction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320155910 CN203159003U (en) | 2013-03-29 | 2013-03-29 | Elevator traction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203159003U true CN203159003U (en) | 2013-08-28 |
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ID=49020206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320155910 Expired - Lifetime CN203159003U (en) | 2013-03-29 | 2013-03-29 | Elevator traction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203159003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145021A (en) * | 2013-03-29 | 2013-06-12 | 广州广日电梯工业有限公司 | Elevator traction machine |
-
2013
- 2013-03-29 CN CN 201320155910 patent/CN203159003U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145021A (en) * | 2013-03-29 | 2013-06-12 | 广州广日电梯工业有限公司 | Elevator traction machine |
| CN103145021B (en) * | 2013-03-29 | 2016-04-20 | 广州广日电梯工业有限公司 | Elevator traction machine |
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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 |
Granted publication date: 20130828 |
|
| CX01 | Expiry of patent term |