CN203158975U - Rope sheave for elevator - Google Patents
Rope sheave for elevator Download PDFInfo
- Publication number
- CN203158975U CN203158975U CN 201320122592 CN201320122592U CN203158975U CN 203158975 U CN203158975 U CN 203158975U CN 201320122592 CN201320122592 CN 201320122592 CN 201320122592 U CN201320122592 U CN 201320122592U CN 203158975 U CN203158975 U CN 203158975U
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- CN
- China
- Prior art keywords
- wheel body
- rope sheave
- rope
- elevator
- bearing
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- Expired - Fee Related
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Abstract
The utility model provides a rope sheave for an elevator. The rope sheave for the elevator comprises rope grooves, a wheel body and a center shaft arranged in a center through hole of the wheel body, wherein the rope grooves and the wheel body are integrally formed. A bearing is arranged between the outer wall of the center shaft and the inner wall of the center through hole of the wheel body. The longitudinal section bending positions of a supporting part of the wheel body are in an arc shape. The rope sheave for the elevator is simple in structure and easy to machine, the service life of the rope sheave is prolonged, and maintenance cost is saved. The wheel body and the rope grooves for containing a rope are integrally formed, technological procedures such as turning and welding of two steel plates in the prior art are removed, and therefore production cost is reduced. A connecting gap in split-type assembling does not exist in an integrally formed structure, connecting technological procedures such as welding are removed, the production cost is reduced, in addition, the longitudinal section bending positions of the supporting part of the wheel body are designed to be of an arc-shaped structure, the tensile strength and the yield stress of the rope sheave are increased, materials can be reduced under the same tensile strength and the same yield stress, and cost is saved.
Description
Technical field
The utility model relates to the lift appliance technical field, refers to the special-purpose rope sheave of a kind of elevator especially.
Background technology
Rope sheave is the essential parts of traction elevator, and steel rope is realized spacing by rope sheave.So the effect of rope sheave is to guarantee the position of steel rope and running orbit.The wheel body of rope sheave is welded by two steel plates usually, and the thickness of steel plate mostly is by the thick cold-reduced sheet extrusion forming of 2.5mm and becomes 1mm thick.But there is following shortcoming in the rope sheave of this structure: 1) because two steel plates are welding again behind the first extrusion forming, and complex process, productive costs is higher; 2) after steel plate was squeezed into 1mm thickness, it is very thin that wall becomes, and the corresponding intensity that makes rope sheave reduces, through after using for a long time, and the rope sheave easy deformation, thus cause the planeness variation of grooving, finally cause elevator traveling comfort variation.And rope sheave is made of wheel body, copper sheathing, axle and screw, and axle is cylindric, outer wall is smooth surface, be provided with copper sheathing in the central through hole of wheel, an end edge of copper sheathing is screwed on the outer wall of wheel, and axle is located in the centre hole of copper sheathing, copper sheathing is little free-running fit with axle, copper sheathing cooperates for slight interference with wheel, and its weak point is: copper sheathing is easy to wear, and the life-span is short, the maintenance processing copper sheathing cycle is long, axially occurs displacement easily.
In addition, common rope sheave has plastics, metallic material to make, and be used for elevator industry rise draw rope sheave since to performance requriementss such as tensile strength, yield stresses than higher, so generally use metal rope sheave, this metallic rope pulley is thicker, materials are many, otherwise are difficult to satisfy elevator to the requirement of tensile strength and yield stress, and cost is than higher.
The utility model content
The utility model proposes the special-purpose rope sheave of a kind of elevator, simple in structure, easy processing can prolong the rope sheave life-span, saves maintenance, productive costs is lower, prevent distortion, thereby guarantees the elevator special bearing rotary type rope sheave of the elevator sheave expense of elevator traveling comfort.
The technical solution of the utility model is achieved in that the special-purpose rope sheave of a kind of elevator, comprises grooving, wheel body and is arranged on the interior center shaft of wheel body central through hole, and is one-body molded between described grooving and the wheel body; Be provided with bearing between described center shaft outer wall and the wheel body central through hole inwall; Vertical tangent plane bending place of the support portion of described wheel body is arc.
Wherein, have the savings hole on the sidewall of described grooving.
Particularly, the middle part of described center shaft is provided with boss, is arranged with bearing respectively on the center shaft of described boss both sides.
Further, two ends of the central through hole inwall of described wheel body are respectively equipped with draw-in groove, all establish back-up ring in the described draw-in groove, and back-up ring is positioned at the both ends of the surface of establishing bearing.
Further, described bearing is deep groove ball bearing.
Compared with prior art, the beneficial effects of the utility model are: simple in structure, easy processing, prolonged the rope sheave life-span, and saved service expenditure.Because the grooving of wheel body and ccontaining rope is formed in one, and has namely saved technologies such as the turning of two steel plates in the prior art, welding, thereby has reduced productive costs; Simultaneously, integrated formed structure can prevent the steel plate deformed of rope sheave, thereby guarantees the planeness of grooving, and then guarantees the smooth running of elevator.Connection slit when integrated formed structure does not have the sectional type assembling has been saved welding and has been waited connection technology, cost-cutting; In addition, vertical tangent plane bending part of wheel body support section is designed to the camber structure, has increased tensile strength and the yield stress of rope sheave, at identical tensile strength with yield stress is next can reduce materials, saves cost.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that the utility model is along the cutaway view of central axis;
Fig. 2 is longitudinal sectional view of the present utility model;
Fig. 3 is the enlarged diagram of grooving in the utility model.
The specific embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
Referring to Fig. 1 to Fig. 3, the special-purpose rope sheave of a kind of elevator comprises grooving 5, wheel body 1 and is arranged on the interior center shaft 3 of wheel body 1 central through hole, and is one-body molded between described grooving 5 and the wheel body 1; Be provided with bearing 2 between described center shaft 3 outer walls and the wheel body 1 central through hole inwall; Vertical tangent plane bending place of described wheel body 1 support portion is arc.The processing simple in structure, easy of this rope sheave has prolonged life-span of rope sheave, has saved service expenditure.Because the grooving 5 of wheel body and ccontaining rope is formed in one, and has namely saved technologies such as the turning of two steel plates in the prior art, welding, thus cost-cutting productive costs; Simultaneously, integrated formed structure can prevent the steel plate deformed of rope sheave, thereby guarantees the planeness of grooving 5, and then guarantees the smooth running of elevator.Integrated formed structure does not have the connection slit in sectional type when assembling and has saved welding and waited connection technology, thus cost-cutting; In addition, vertical tangent plane bending place of the support section of wheel body 1 is designed to the camber structure, has increased tensile strength and the yield stress of rope sheave, at identical tensile strength with yield stress is next can reduce materials, saves cost.
Wherein, have savings hole 7 on the sidewall of described grooving 5.For reduce rope sheave and steel rope between friction, can be in savings hole 7 between the use device lubricating oil, during use, lubricating oil outflows in the savings hole 7 are played lubricated effect, and have been reduced the friction coefficient between rope sheave and the steel rope.
Particularly, the middle part of described center shaft 3 is provided with boss 6, is arranged with bearing 2 respectively on the center shaft 3 of described boss 6 both sides.Bearing 2 supports than copper sheathing and supports processing easily, and not easy to wear, long service life has been saved service expenditure.
Further, two ends of the central through hole inwall of described wheel body 1 are respectively equipped with draw-in groove, all establish back-up ring 4 in the described draw-in groove, and back-up ring 4 is positioned at the both ends of the surface of bearing 2.Described bearing 2 is set on the center shaft 3 and is connected to by draw-in groove in the central through hole of wheel body 1, and back-up ring 4 plays fixing effect, prevents bearing 2 play on axle.
Further, described bearing 2 is deep groove ball bearing 2.Described deep groove ball bearing 2 is single-groove grooved ball-bearing casing 2, and single-groove grooved ball-bearing casing 2 can bear Radial load and single direction axial load; When bearing 2 bears Radial load, will produce an axial component, come balance in addition by another bearing 2 that can bear the reversing sense axial force.Deep groove ball bearing 2 is simple in structure, compares with other type to be easy to the accuracy of manufacture that reaches higher, and institute is so that become series to produce in enormous quantities, and manufacturing cost is also lower, uses very general.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. the special-purpose rope sheave of elevator comprises grooving (5), wheel body (1) and is arranged on the interior center shaft (3) of wheel body (1) central through hole, it is characterized in that: one-body molded between described grooving (5) and the wheel body (1); Be provided with bearing (2) between described center shaft (3) outer wall and wheel body (1) the central through hole inwall; Vertical tangent plane bending place of the support portion of described wheel body (1) is arc.
2. the special-purpose rope sheave of elevator according to claim 1 is characterized in that: have savings hole (7) on the sidewall of described grooving (5).
3. the special-purpose rope sheave of elevator according to claim 1, it is characterized in that: the middle part of described center shaft (3) is provided with boss (6), is arranged with bearing (2) respectively on the center shaft (3) of described boss (6) both sides.
4. the special-purpose rope sheave of elevator according to claim 1, it is characterized in that: two ends of the central through hole inwall of described wheel body (1) are respectively equipped with draw-in groove, all establish back-up ring (4) in the described draw-in groove, and back-up ring (4) is positioned on the both ends of the surface of bearing (2).
5. according to claim 1 or the special-purpose rope sheave of 3 or 4 described elevators, it is characterized in that: described bearing (2) is deep groove ball bearing (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320122592 CN203158975U (en) | 2013-03-18 | 2013-03-18 | Rope sheave for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320122592 CN203158975U (en) | 2013-03-18 | 2013-03-18 | Rope sheave for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203158975U true CN203158975U (en) | 2013-08-28 |
Family
ID=49020178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320122592 Expired - Fee Related CN203158975U (en) | 2013-03-18 | 2013-03-18 | Rope sheave for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203158975U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105270957A (en) * | 2014-07-25 | 2016-01-27 | 蒂森克虏伯电梯（上海）有限公司 | Integrated type bearing wheel device and elevator with integrated type bearing wheel device |
| US10486942B2 (en) | 2014-05-16 | 2019-11-26 | Inventio Ag | Elevator installation roller with restraining element |
| CN113623382A (en) * | 2021-06-29 | 2021-11-09 | 上海宇航系统工程研究所 | Long-life rope sheave bearing member is used in space |
-
2013
- 2013-03-18 CN CN 201320122592 patent/CN203158975U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10486942B2 (en) | 2014-05-16 | 2019-11-26 | Inventio Ag | Elevator installation roller with restraining element |
| CN105270957A (en) * | 2014-07-25 | 2016-01-27 | 蒂森克虏伯电梯（上海）有限公司 | Integrated type bearing wheel device and elevator with integrated type bearing wheel device |
| CN113623382A (en) * | 2021-06-29 | 2021-11-09 | 上海宇航系统工程研究所 | Long-life rope sheave bearing member is used in space |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20150318 |
|
| EXPY | Termination of patent right or utility model |