CN211769680U - High-friction-coefficient traction sheave for high-speed elevator - Google Patents
High-friction-coefficient traction sheave for high-speed elevator Download PDFInfo
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- CN211769680U CN211769680U CN202020144051.2U CN202020144051U CN211769680U CN 211769680 U CN211769680 U CN 211769680U CN 202020144051 U CN202020144051 U CN 202020144051U CN 211769680 U CN211769680 U CN 211769680U
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- rubber strip
- hub
- groove
- traction sheave
- foreign steamer
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Abstract
The utility model provides a traction sheave with high friction coefficient for a high-speed elevator, which comprises an inner hub, at least three support rods and an outer hub, wherein all the support rods are arranged in a spoke shape from the outer periphery of the inner hub to the inner periphery of the outer hub, and the outer hub is coaxially and fixedly supported outside the inner hub; the annular haulage rope groove has been seted up on the outer peripheral face of foreign steamer hub, the rubber strip embedded groove that a plurality of sections supplied the rubber strip embedding is seted up along its circumference in the inboard bottom of foreign steamer hub haulage rope groove between two adjacent bracing pieces, haulage rope inslot is along the length direction in this rubber strip embedded groove still even interval arrangement and is set up a plurality of bleeder vent, every bleeder vent all runs through the setting along foreign steamer's radial, every bleeder vent extends and is the cross setting with the rubber strip embedded groove on the axial direction parallel direction with foreign steamer hub. The utility model discloses simple structure, the high friction coefficient traction sheave for the high-speed elevator that the radiating effect is good when improving coefficient of friction.
Description
Technical Field
The utility model belongs to the technical field of elevator component technique and specifically relates to a high friction coefficient traction sheave for high-speed elevator.
Background
Generally, a traction sheave is cast by QT600 or QT700, machined into a U-shaped groove, and a friction force is generated by contact between a rope groove and a steel wire rope to drag an elevator. The structure of the existing traction sheave with high friction coefficient is as follows: the outer peripheral surface of the traction sheave base body is extruded with a rubber coating layer, the outer peripheral surface of the coating layer is provided with a plurality of annular traction rope grooves at intervals along the axial direction of the traction sheave base body, and the inner peripheral surface of the coating layer is bonded with the outer peripheral surface of the traction sheave base body through an adhesive. Although the existing traction sheave with high friction coefficient can increase the contact friction coefficient between the traction sheave and the steel wire rope and improve the traction capacity, the friction coefficient between the coating layer and the steel wire rope is large, and the heat transfer effect of the coating layer is poor, when the traction sheave and the steel wire rope slip, the coating layer and the steel wire rope generate heat through friction, the coating layer is easy to deform and melt, the traction sheave and the steel wire rope are polluted, and the traction capacity is further reduced.
Disclosure of Invention
The utility model aims at providing a simple structure, the high coefficient of friction traction sheave for high-speed elevator that the radiating effect is good when improving coefficient of friction.
A high friction coefficient traction sheave for a high-speed elevator comprises an inner hub, at least three support rods and an outer hub, wherein all the support rods are arranged in a spoke shape from the outer periphery of the inner hub to the inner periphery of the outer hub, and the outer hub is coaxially and fixedly supported outside the inner hub; the annular is seted up on the outer peripheral face of foreign steamer hub and is dragged the grooving, the inboard bottom that foreign steamer hub between two adjacent bracing pieces dragged the grooving sets up the rubber strip embedded groove that a plurality of sections supplied the rubber strip embedding along its circumference, it sets up a plurality of bleeder vent to drag the inslot along the length direction in this rubber strip embedded groove still even interval arrangement, every bleeder vent all runs through the setting along foreign steamer hub radially, and simultaneously, every bleeder vent extends and is the cross setting with the rubber strip embedded groove on the axial direction parallel direction with foreign steamer hub, during the use, the tight packing of rubber strip embedded inslot clamp has the rubber strip, the messenger is around establishing in dragging the grooving and can laminate mutually with the rubber strip of dragging the grooving.
The utility model discloses only set up the rubber strip embedding groove that supplies the rubber strip embedding along its circumference in the inboard bottom of towline groove between two adjacent bracing pieces, during the use, the rubber strip embedding inslot presss from both sides tightly to be filled with the rubber strip, the towline is around setting up in the towline groove and can laminating mutually with the rubber strip in the towline groove, at this moment, only set up a plurality of rubber strips in the interval interspersion in the circumferencial direction on each driving sheave, compare with setting up annular rubber strip in the towline groove of driving sheave, reduced the area of contact of rubber strip and towline, reduced its and towline's friction heat production; simultaneously, still even interval arrangement sets up at least one bleeder vent along the length direction in rubber strip embedded groove in the haulage rope groove, and every bleeder vent all link up the setting along the radial of foreign wheel hub, every bleeder vent extends and is cross arrangement with rubber strip embedded groove on outer wheel hub's axial direction, make at outer wheel hub in the rotation process, the air current swirl that produces in outer wheel hub inboard can drive the air current that produces in the venthole, and accelerate the air current velocity of flow in the venthole, thereby derive the heat in the haulage rope groove on the foreign wheel hub fast, avoid rubber strip overheat deformation.
Preferably, the rubber strip is further connected with the inner wall of the rubber strip embedding groove in an adhesive bonding mode, and good combination stability of the rubber strip and the outer hub is guaranteed.
Preferably, all the rubber strip embedding grooves are uniformly arranged along the circumferential direction of the outer hub.
Preferably, both ends and the middle part of each rubber strip embedding groove are respectively and correspondingly provided with an air vent, so that the heat dissipation effect is better.
Drawings
Fig. 1 is a three-dimensional structure view of a traction sheave with a high friction coefficient according to the present invention;
fig. 2 is a front view structural diagram of the traction sheave with high friction coefficient of the present invention;
fig. 3 is a sectional structure view of the traction sheave of the present invention taken along the line a-a in fig. 2;
FIG. 4 is an enlarged view of portion C of FIG. 3;
FIG. 5 is a side view of the high coefficient of friction traction sheave of the present invention without the rubber strip installed;
fig. 6 is an enlarged view of a portion B in fig. 2.
Detailed Description
The embodiments of the present invention will now be described in detail with reference to the accompanying drawings:
with reference to fig. 1 to 6, a traction sheave with high friction coefficient for a high-speed elevator comprises an inner hub 10, at least three support rods 20 and an outer hub 30, wherein all the support rods 20 are arranged in a spoke shape from the outer circumferential surface of the inner hub 10 to the inner circumferential surface of the outer hub 30, and the outer hub 30 is coaxially and fixedly supported outside the inner hub 10; the annular traction rope groove 40 has been seted up on the outer peripheral face of foreign steamer hub 30, the inboard bottom of foreign steamer hub traction rope groove 40 between two adjacent bracing pieces 20 sets up a plurality of sections along its circumference and supplies the rubber strip embedded groove 60 of rubber strip 50 embedding, still even interval arrangement sets up a plurality of bleeder vent 70 along the length direction of this rubber strip embedded groove 60 in the traction rope groove 40, every bleeder vent 70 all runs through the setting along the radial of foreign steamer hub 30, and simultaneously, every bleeder vent 70 extends and is the cross setting with rubber strip embedded groove 60 in the axial direction parallel direction with foreign steamer hub 30, during the use, the packing is tightly pressed from both sides in the rubber strip embedded groove 60 has rubber strip 50, the serving rope (common structure, not shown) is around establishing in traction rope groove 40 and can laminate with the rubber strip 50 in the traction rope groove.
The utility model discloses only set up the rubber strip embedding groove 60 that supplies the rubber strip 50 to imbed along its circumference in the inboard bottom of haulage rope groove 40 between two adjacent bracing pieces 20, during the use, the packing is tightly packed in rubber strip embedding groove 60 has rubber strip 50, the haulage rope is around setting up in haulage rope groove 40 and can be laminated with the rubber strip 50 in haulage rope groove 40 mutually, at this moment, only set up a plurality of rubber strip 50 in the interval interspersion in the circumferencial direction on each driving sheave, compare with setting up annular rubber strip in the haulage rope groove of driving sheave, the area of contact of rubber strip 50 with the haulage rope has been reduced, its friction with the heat production haulage rope has been reduced; meanwhile, at least one air hole 70 is formed in the traction rope groove 40 along the length direction of the rubber strip embedding groove 60 at intervals, each air hole 70 is formed along the radial direction of the outer hub 30 in a penetrating mode, each air hole 70 extends in the axial direction of the outer hub 30 and is crossed with the rubber strip embedding groove 60 in a cross mode, so that in the rotating process of the outer hub 30, airflow vortex generated on the inner side of the outer hub 30 can drive the air holes 70 to generate airflow, the airflow flowing speed in the air holes 70 is accelerated, heat in the traction rope groove 40 on the outer hub 30 is led out quickly, and overheating deformation of the rubber strips 50 is avoided.
Generally, a plurality of annular traction rope grooves 40 are formed in parallel in the circumferential direction on the outer circumferential surface of the outer hub 30.
Preferably, the rubber strip 50 is also bonded to the inner wall of the rubber strip embedding groove 60 by an adhesive, so that the rubber strip 50 and the outer hub 30 have good bonding stability.
Preferably, as shown in fig. 1, all the rubber strip embedding grooves 60 are uniformly arranged in the circumferential direction of the outer hub 30.
Preferably, as shown in fig. 6, two ends and a middle portion of each rubber strip embedding groove 60 are respectively and correspondingly provided with an air vent 70, so that the heat dissipation effect is better.
The number of the support rods 20 of the present invention is not limited to 5 in the drawings, and may be 3, 4 or more than 5. Meanwhile, the number of the ventilation holes 70 corresponding to each rubber strip embedding groove 60 is not limited to 3 in the drawing, and may be 1, 2 or more than 3.
Claims (4)
1. A high friction coefficient traction sheave for a high-speed elevator comprises an inner hub, at least three support rods and an outer hub, wherein all the support rods are arranged in a spoke shape from the outer periphery of the inner hub to the inner periphery of the outer hub, and the outer hub is coaxially and fixedly supported outside the inner hub; annular haulage rope groove has been seted up on the outer peripheral face of foreign steamer hub, its characterized in that: the inboard bottom in foreign steamer hub haulage rope groove between two adjacent bracing pieces sets up the rubber strip embedded groove that a plurality of sections supplied the rubber strip embedding along its circumference, haulage rope inslot is still evenly spaced along the length direction in this rubber strip embedded groove and is arranged and set up a plurality of bleeder vent, every bleeder vent is all along radially running through the setting of foreign steamer hub, and simultaneously, every bleeder vent extends and is the cross setting with the rubber strip embedded groove on the axial direction parallel direction with foreign steamer hub, during the use, the tight packing of rubber strip embedded inslot clamp has the rubber strip, the serving rope is around establishing in haulage rope inslot and can laminate mutually with the rubber strip in the haulage rope inslot.
2. The high friction coefficient traction sheave for a high speed elevator according to claim 1, wherein: the rubber strip is also connected with the inner wall of the rubber strip embedding groove in an adhesive bonding mode through an adhesive.
3. The high friction coefficient traction sheave for a high speed elevator according to claim 1, wherein: all rubber strip embedding grooves are uniformly arranged along the circumferential direction of the outer hub.
4. The high friction coefficient traction sheave for a high speed elevator according to claim 1, wherein: two ends and the middle part of each rubber strip embedding groove are respectively and correspondingly provided with an air hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020144051.2U CN211769680U (en) | 2020-01-22 | 2020-01-22 | High-friction-coefficient traction sheave for high-speed elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020144051.2U CN211769680U (en) | 2020-01-22 | 2020-01-22 | High-friction-coefficient traction sheave for high-speed elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211769680U true CN211769680U (en) | 2020-10-27 |
Family
ID=72903582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020144051.2U Active CN211769680U (en) | 2020-01-22 | 2020-01-22 | High-friction-coefficient traction sheave for high-speed elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211769680U (en) |
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2020
- 2020-01-22 CN CN202020144051.2U patent/CN211769680U/en active Active
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