CN217676262U

CN217676262U - Elevator rope sheave

Info

Publication number: CN217676262U
Application number: CN202221064917.4U
Authority: CN
Inventors: 徐庆明; 庞健; 吴勇
Original assignee: Suzhou Helece Science & Technology Co ltd
Current assignee: Suzhou Helece Science & Technology Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-10-28
Anticipated expiration: 2032-05-06

Abstract

The utility model discloses an elevator rope sheave uses at elevator accessory technical field, and it is inconvenient to maintain the installation of elevator rope sheave, and wire rope easily breaks away from and the big problem of wire rope wearing and tearing when elevator rope sheave uses, and its technical scheme main points are: comprises an axle; the wheel body comprises an inner wheel arranged at one end of the wheel shaft and an outer wheel detachably arranged at one end of the inner wheel far away from the wheel shaft, a plurality of rope grooves are circumferentially arranged on the circumferential surface of the outer wheel, and the steel wire rope is arranged in the rope grooves; the anti-drop rope part is arranged at the upper end of the outer wheel and used for pressing the steel wire rope, and the outer side of the anti-drop rope part is attached to the upper end of the rope groove; the elastic buffer component is arranged on the rope falling prevention part and used for relieving stress when the steel wire rope is in contact with the rope falling prevention part; the steel wire rope abrasion-proof device has the technical effects of simple structure, convenience in disassembly and maintenance, capability of effectively preventing the steel wire rope from being separated and reduction in abrasion of the steel wire rope.

Description

Elevator rope sheave

Technical Field

The utility model relates to an elevator accessory technical field, more specifically say, it relates to an elevator rope sheave.

Background

The elevator rope sheave is a conventional part in an elevator landing door system, mainly plays a role in guiding or drawing a steel wire rope of an elevator, and usually a plurality of independent steel wire ropes are sleeved on the surface of the elevator rope sheave to improve the safety and stability of the elevator.

The existing rope sheave generally guides and prevents the steel wire rope sleeved on the surface of the rope sheave by using the rope grooves on the surface of the rope sheave, but when the fit between the steel wire rope and the rope sheave is loosened during the running of the elevator, the steel wire rope still easily falls off the rope sheave or is dislocated with the rope grooves of other steel wire ropes, and the normal running of the elevator is influenced.

At present, chinese patent application with publication number CN109761161A discloses a rope-drop-preventing pulley, which comprises a central shaft with two ends respectively erected on two parallel pulley supports, wherein the central shaft is uniformly provided with a plurality of rotatable pulleys, the pulley supports are also provided with pressing wheel shafts parallel to the central shaft, the pressing wheel shafts are provided with a plurality of rotatable pressing wheels for preventing a pull rope from dropping, and the pressing wheels and the pulleys are arranged in a one-to-one correspondence manner. Above-mentioned scheme compresses tightly the stay cord in the recess of pulley through set up the pinch roller in one side of pulley, has solved the problem that the stay cord drops from the pulley, has increased the security that the pulley used.

Although this method can prevent the pulley surface from being pulled out, it still has the following disadvantages: on one hand, each groove is correspondingly provided with an independent pinch roller, which is not beneficial to installation and maintenance; on the other hand, the stay cord is compressed tightly by pinch roller and pulley, when the stay cord breaks away from appearing, because the restriction of pinch roller for the atress of stay cord sharply increases, arouses the wearing and tearing of stay cord easily, reduces life.

To sum up, need provide a easy dismounting, can effectively prevent that wire rope from breaking away from, reduce the elevator rope sheave of wire rope wearing and tearing.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model discloses an aim at provides an elevator rope sheave, its advantage is simple structure, dismouting and maintenance convenience, can effectually prevent that wire rope from breaking away from to reduce wire rope's wearing and tearing.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an elevator sheave comprising:

an axle;

the wheel body comprises an inner wheel arranged at one end of the wheel shaft and an outer wheel detachably arranged at one end, far away from the wheel shaft, of the inner wheel, a plurality of rope grooves are formed in the circumferential surface of the outer wheel along the circumferential direction, and steel wire ropes are arranged in the rope grooves;

the rope falling prevention part is arranged at the upper end of the outer wheel and used for pressing the steel wire rope, and the outer side of the rope falling prevention part is attached to the upper end of the rope groove;

and the elastic buffer assembly is arranged on the anti-rope-falling part and used for relieving the stress of the steel wire rope when the steel wire rope is contacted with the anti-rope-falling part.

Through the technical scheme, the wheel body is formed by detachably connecting and combining the outer wheel and the inner wheel, and is flexible to disassemble and assemble; when the surface of the outer wheel is abraded, an operator can independently disassemble and replace the outer wheel, and the maintenance is convenient; the rope falling prevention part is arranged at the upper end of the outer wheel, and when the steel wire rope is separated from the rope groove, the rope falling prevention part can limit the steel wire rope in the rope groove, so that the separation prevention and the dislocation prevention of the steel wire rope are realized; elastic buffer subassembly sets up on anticreep rope spare, and when wire rope and anticreep rope spare contact, anticreep rope spare produced the restriction resistance to wire rope, at this moment, because elastic buffer subassembly's cushioning effect, the rigid contact between wire rope and the anticreep rope spare turns into the flexonics, has slowed down the impact force that wire rope received, has reduced wire rope's wearing and tearing.

Further, the axial both ends symmetry of foreign steamer is provided with the wheel board, anticreep rope spare is the pressure rope post, press the rope post along the axial level of foreign steamer set up in the upper end of foreign steamer, press the both ends of rope post length direction respectively with two sets of the relative side of wheel board rotates and is connected, press the outer peripheral face laminating of rope post the upper end of grooving.

The beneficial effects are that: the two ends of the outer wheel are provided with wheel plates which limit all the steel wire ropes within the circumferential surface of the outer wheel and have guiding and limiting effects on the steel wire ropes; the rope pressing column is rotatably connected with the wheel plate, and when the rope pressing column is in contact with the steel wire rope, the rope pressing column rotates under the action of friction force, so that the abrasion of the steel wire rope and the rope pressing column is reduced, and the service lives of the rope wheel and the steel wire rope are prolonged.

Further, it is two sets of the vertical spout that is provided with in the side that the wheel board is relative, the elastic buffer subassembly including slide set up in briquetting in the spout with vertical set up in the pressure spring of briquetting lower extreme, pressure spring's both ends butt briquetting and the bottom of spout respectively, two relative side symmetries of briquetting be provided with the coaxial mounting groove of pressure rope post, the axial both ends of pressure rope post set up respectively in the mounting groove.

The beneficial effects are that: the pressing block is arranged in the sliding groove in a sliding mode, and when the pressing block moves up and down in the sliding groove along the vertical direction, the pressing rope column can be driven to move synchronously, so that the pressing rope column floats up and down in the vertical direction; the pressure spring is arranged at the lower end of the pressing block, and when the pressing block moves upwards under the pushing force generated when the steel wire rope is separated, the pressure spring generates resilience force to pull back the pressing block, so that the steel wire rope is pressed tightly; the structure is favorable for buffering the pressure on the steel wire rope and protecting the steel wire rope.

Further, the middle part at the both ends of pressing rope column length direction is provided with the guide way along the axial, be provided with the telescopic link in the guide way, the one end laminating of guide way is kept away from to the telescopic link the one end of pressing rope column is kept away from to the mounting groove, the one end level that the mounting groove was kept away from to the telescopic link is provided with locking spring, locking spring's horizontally both ends butt telescopic link, pressing rope column respectively.

The beneficial effects are that: the telescopic link can be reciprocating motion on the horizontal direction under locking spring's effect, when needs are dismantled or the installation telescopic link, only need to impress the telescopic link hard in the guide way, can take out or load onto the pressure rope post.

Furthermore, the shape of the rope groove is a V-shaped structure with an upward opening.

The beneficial effects are that: the rope groove sets up to V font structure, and wire rope places and is difficult for deviating from in the rope groove.

Furthermore, the side that the grooving is relative is provided with a plurality of anticreep arch along the warp direction of foreign steamer, anticreep arch on two relative sides of grooving sets up in the crisscross way.

The beneficial effects are that: the bellied setting of anticreep can increase the frictional force between grooving and the wire rope, and the anticreep arch of crisscross setting has certain interlock effect to wire rope simultaneously, can further prevent that wire rope breaks away from the grooving.

Furthermore, the circumferential surface of the rope pressing column is of a wavy structure, the positions of the wave crests of the wavy structure correspond to the positions of the rope grooves, the number of the wave crests is consistent with that of the rope grooves, and the connecting parts of two adjacent rope grooves are arranged in the troughs of the wavy structure.

The beneficial effects are that: the surface of the rope pressing column is wavy, wherein the wave crest corresponds to the rope groove in position, and the wave crest is in a convex shape bent towards one side close to the rope groove, so that when the steel wire rope is placed in the rope groove, the wave crest on the surface of the rope pressing column can press the steel wire rope; because the trough is towards keeping away from the sunken form of grooving one side bending, the trough can be wherein with the connecting portion card of two adjacent grooving, and through this kind of structure, it is stable with the grooving cooperation to press the rope column to realize wire rope's anticreep and mistake proofing position.

Furthermore, the circumferential surface of the outer wheel is made of nylon.

The beneficial effects are that: the nylon has the characteristics of high mechanical strength, good toughness, outstanding fatigue resistance and the like, and the circumferential surface of the outer wheel is made of the nylon material, so that the service life of the elevator rope wheel is prolonged.

To sum up, the utility model discloses following beneficial effect has:

according to the scheme, the detachable outer wheel is arranged, so that the traditional integral elevator rope wheel is optimized into a split structure, the installation flexibility of the device is improved, and the maintenance cost is reduced; the steel wire rope pressing shaft is arranged to press the steel wire rope, so that the steel wire rope in all the rope grooves can be pressed only by mounting once, the structure is simple, the disassembly and the assembly are convenient, and the steel wire rope can be effectively prevented from being separated from the rope grooves; through set up the springiness cushioning subassembly on anticreep spare, can alleviate the anticreep rope spare and block the pressure that produces wire rope when wire rope to protection wire rope and anticreep rope spare reduce the surface wear of wire rope and equipment, increase of service life.

Drawings

FIG. 1 is an overall configuration diagram of the present embodiment;

FIG. 2 is an exploded view of the whole of the present embodiment;

FIG. 3 is an enlarged schematic view of portion A of FIG. 2;

fig. 4 is an overall sectional view of the present embodiment.

In the figure: 1. a wheel axle; 2. a wheel body; 21. an inner wheel; 22. an outer wheel; 3. an anti-rope-falling part; 4. an elastic buffer component; 41. pressing into blocks; 42. a pressure spring; 5. a wheel plate; 6. rope grooves; 7. the anti-drop bulge; 8. connecting columns; 9. inserting grooves; 10. a bolt; 11. wave crest; 12. a trough of a wave; 14. a telescopic rod; 15. a locking spring; 16. rope pressing columns; 17. a chute; 18. and (7) installing a groove.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and embodiments.

The specific embodiments are only for explaining the present invention, and it is not a limitation to the present invention, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent law within the scope of the claims of the present invention.

Example (b):

as shown in fig. 1 and 2, an elevator sheave includes: shaft 1, wheel body 2, anticreep rope spare 3 and elastic buffer subassembly 4, wherein:

one end of the wheel shaft 1 is connected with the wheel body 2, and the other end of the wheel shaft 1 is connected to the elevator landing door system, so that the elevator rope wheel can guide or draw a steel wire rope of an elevator;

the wheel body 2 comprises an inner wheel 21 arranged at one end of the wheel shaft 1 and an outer wheel 22 detachably arranged at one end of the inner wheel 21 far away from the wheel shaft 1; the two axial ends of the outer wheel 22 are symmetrically provided with wheel plates 5, the circumferential surface of the outer wheel 22 is circumferentially provided with a plurality of rope grooves 6, the steel wire ropes are arranged in the rope grooves 6, and the rope grooves 6 are of V-shaped structures with upward openings; the two opposite side surfaces of the rope groove 6 are provided with a plurality of anti-falling bulges 7 along the warp direction of the outer wheel 22, and the anti-falling bulges 7 on the two opposite side surfaces of the rope groove 6 are arranged in a staggered way, so that the rope groove 6 can be used for tightly gripping the steel wire rope; the material of the circumferential surface of the outer ring 22 in this embodiment is nylon; the connection mode of the outer wheel 22 and the inner wheel 21 is bolt connection, which specifically comprises the following steps: the end of the inner wheel 21 far away from the wheel axle 1 is provided with a connecting column 8, the middle part of the outer wheel 22 is provided with a plug-in groove 9 which is coaxially matched with the connecting column 8, the connecting column 8 of the inner wheel 21 is inserted into the plug-in groove 9 of the outer wheel 22, the wheel plate 5 on one side of the outer wheel 22 close to the inner wheel 21 is attached to the inner wheel 21, and the wheel plate 5 is connected with the inner wheel 21 by bolts 10.

As shown in fig. 1 and 4, the rope release prevention member 3 is provided at the upper end of the outer wheel 22 for pressing the wire rope; the anti-drop rope piece 3 in the scheme is a rope pressing column 16, the rope pressing column 16 is horizontally arranged at the upper end of the outer wheel 22 along the axial direction of the outer wheel 22, two ends of the rope pressing column 16 in the length direction are respectively and rotatably connected with opposite side surfaces of the two groups of wheel plates 5, and the outer peripheral surface of the rope pressing column 16 is attached to the upper end of the rope groove 6; the circumferential surface of the rope pressing column 16 is of a wave-shaped structure, the positions of wave crests 11 of the wave-shaped structure correspond to the positions of the rope grooves 6, the number of the wave crests 11 is consistent with that of the rope grooves 6, and the connecting parts of two adjacent rope grooves 6 are arranged in the wave troughs 12 of the wave-shaped structure.

As shown in fig. 3, the elastic buffer component 4 is arranged on the rope pressing column 16 and used for relieving the stress when the steel wire rope is in contact with the rope pressing column 16; the opposite sides of the two sets of wheel plates 5 are vertically provided with sliding grooves 17, the elastic buffer component 4 comprises a pressing block 41 which is arranged in the sliding grooves 17 in a sliding manner and a pressure spring 42 which is vertically arranged at the lower end of the pressing block 41, two ends of the pressure spring 42 are respectively abutted to the bottom of the pressing block 41 and the bottom of the sliding groove 17, two opposite sides of the pressing block 41 are symmetrically provided with mounting grooves 18 (refer to fig. 4) which are coaxial with the rope pressing column 16, and two axial ends of the rope pressing column 16 are respectively arranged in the mounting grooves 18 (refer to fig. 4).

As shown in fig. 4, guide grooves are axially formed in the middle of two ends of the rope pressing column 16 in the length direction, a telescopic rod 14 is arranged in each guide groove, one end, away from the guide groove, of the telescopic rod 14 is attached to one end, away from the rope pressing column 16, of the installation groove 18, one end, away from the installation groove 18, of the telescopic rod 14 is horizontally provided with a locking spring 15, and two horizontal ends of the locking spring 15 are respectively abutted to the telescopic rod 14 and the rope pressing column 16; with the above structure, the rope pressing column 16 is convenient to disassemble and assemble.

The utility model discloses a working process and theory of operation as follows:

firstly, a wheel shaft 1 of an elevator rope wheel is connected with an elevator landing door system, and a steel wire rope is wound on the elevator rope wheel through a rope groove 6; starting the elevator, rotating the rope wheel, moving the steel wire rope in the rope groove 6 under the action of friction force, and not generating pressure on the steel wire rope by the rope pressing column 16; when steel wire rope takes place to relax with the elevator rope sheave, steel wire rope breaks away from grooving 6, at this moment, steel wire rope and the contact of pressure rope post 16, pressure rope post 16 restricts steel wire rope's position along with steel wire rope's motion rotation in the time, the steel wire rope in breaking away from produces thrust to pressure rope post 16, make pressure rope post 16 to the one side of keeping away from grooving 6 remove, at this moment, pressure spring 42 is by tensile back, pressure spring 42 contracts under the effect of resilience force, make pressure rope post 16 to the one end removal that is close to grooving 6, thereby restrict steel wire rope at grooving 6's within range, the effectual steel wire rope that has avoided breaks away from or the dislocation.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the fan belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An elevator sheave, comprising:

a wheel axle (1);

the wheel body (2) comprises an inner wheel (21) arranged at one end of the wheel shaft (1) and an outer wheel (22) detachably arranged at one end, far away from the wheel shaft (1), of the inner wheel (21), a plurality of rope grooves (6) are formed in the circumferential surface of the outer wheel (22) along the circumferential direction, and steel wire ropes are arranged in the rope grooves (6);

the anti-drop rope piece (3) is arranged at the upper end of the outer wheel (22) and used for pressing the steel wire rope, and the outer side of the anti-drop rope piece (3) is attached to the upper end of the rope groove (6);

and the elastic buffer assembly (4) is arranged on the rope falling prevention piece (3) and is used for relieving the stress of the steel wire rope when the steel wire rope is contacted with the rope falling prevention piece (3).

2. The elevator rope wheel as claimed in claim 1, wherein the wheel plates (5) are symmetrically arranged at two axial ends of the outer wheel (22), the rope-retaining member (3) is a rope-pressing column (16), the rope-pressing column (16) is horizontally arranged at the upper end of the outer wheel (22) along the axial direction of the outer wheel (22), two longitudinal ends of the rope-pressing column (16) are rotatably connected with opposite side surfaces of the two sets of wheel plates (5), respectively, and the outer peripheral surface of the rope-pressing column (16) is attached to the upper end of the rope groove (6).

3. The elevator rope wheel as claimed in claim 2, wherein the opposite sides of the two sets of wheel plates (5) are vertically provided with sliding grooves (17), the elastic buffer component (4) comprises a pressing block (41) slidably arranged in the sliding grooves (17) and a pressure spring (42) vertically arranged at the lower end of the pressing block (41), two ends of the pressure spring (42) are respectively abutted against the bottom of the pressing block (41) and the bottom of the sliding groove (17), two opposite sides of the pressing block (41) are symmetrically provided with mounting grooves (18) coaxial with the rope pressing column (16), and two axial ends of the rope pressing column (16) are respectively arranged in the mounting grooves (18).

4. The elevator rope wheel as claimed in claim 3, wherein a guide groove is axially formed in the middle of each end of the rope pressing column (16) in the length direction, a telescopic rod (14) is arranged in the guide groove, one end of the telescopic rod (14) far away from the guide groove is attached to one end of the mounting groove (18) far away from the rope pressing column (16), a locking spring (15) is horizontally arranged at one end of the telescopic rod (14) far away from the mounting groove (18), and the two horizontal ends of the locking spring (15) are respectively abutted to the telescopic rod (14) and the rope pressing column (16).

5. Elevator sheave according to claim 4, characterized in that the rope groove (6) is shaped as a V-shaped structure with the opening facing upwards.

6. Elevator sheave according to claim 5, characterized in that the opposite sides of the rope groove (6) are provided with anti-run protrusions (7) in the radial direction of the outer wheel (22), the anti-run protrusions (7) on the opposite sides of the rope groove (6) being staggered.

7. Elevator sheave according to claim 6, characterized in that the circumferential surface of the rope pressing column (16) is of a wave-like structure, the position of the wave crests (11) of which correspond to the position of the rope grooves (6), and the number of wave crests (11) corresponds to the number of rope grooves (6), the connecting parts of two adjacent rope grooves (6) being placed in the troughs (12) of the wave-like structure.

8. An elevator sheave as claimed in claim 7, characterized in that the circumferential surface of the outer sheave (22) is made of nylon.