CN219098455U

CN219098455U - Door change gear for elevator

Info

Publication number: CN219098455U
Application number: CN202223405666.4U
Authority: CN
Inventors: 朱淑娟
Original assignee: Ehc Engineering Plastic Shanghai Co ltd
Current assignee: Ehc Engineering Plastic Shanghai Co ltd
Priority date: 2022-12-20
Filing date: 2022-12-20
Publication date: 2023-05-30
Anticipated expiration: 2032-12-20

Abstract

The utility model discloses a door change gear for a lift, which comprises a metal hub and a polyurethane outer ring arranged on the outer side of the metal hub, wherein a through hole is formed in one side of the metal hub, an anti-drop part is arranged on one side of the through hole, a bearing is arranged in the metal hub, the bearing is connected with the metal hub through riveting, the inner wall of the bearing is provided with a bushing, the door change gear also comprises a groove which is formed in the middle position of the outer wall of the metal hub, a groove bulge is fixedly adhered to the inner part of the groove, the groove bulge and the polyurethane outer ring are integrally formed, and a first plane is formed on two sides of the outer wall of the metal hub. The door change gear for the elevator can effectively improve the bonding strength between the polyurethane outer ring and the metal hub for the operation of the door change gear, so that the stripping resistance of the polyurethane outer ring is improved, and the door change gear is safe and stable.

Description

Door change gear for elevator

Technical Field

The utility model relates to the technical field of door change gears, in particular to a door change gear for a lifting elevator.

Background

Nowadays, more and more houses, office buildings and the like can be provided with elevator, the service range of the elevator is wider and wider, and the service efficiency is higher and higher, wherein a door change wheel in the elevator is an important component of the elevator, the door change wheel is an important component for supporting a car door and a hall door in the elevator, and the service life of the door change wheel is closely related to whether the elevator door is opened or closed.

The current chinese patent with publication number CN205932864U discloses an elevator door change gear, including wheel hub, be located the inboard bearing of wheel hub and be located the inboard center pin of bearing, wheel hub is equipped with annular wall, this annular wall is equipped with inner wall, outer wall and connects two sides of inner and outer wall, be equipped with the recess on the outer wall and locate the polyurethane tire bead layer in the recess, the notch of recess becomes narrow from outside to inside gradually, polyurethane tire bead layer forms in the recess through injection moulding's mode, polyurethane tire bead layer is covered with the tank bottom of whole recess to be equipped with an inwards sunken concave surface, the concave surface is the arc and is less than the notch of recess.

The scheme has higher production efficiency and excellent dynamic performance under high bearing capacity, but the end part of the contact between the hub and the polyurethane outer ring possibly has low stripping resistance of polyurethane material caused by small contact surface, thus not only increasing the potential safety hazard of the door change gear, but also increasing the rejection rate of roller manufacturing, increasing the production and maintenance cost, further reducing the service life of the roller, affecting the use experience of customers, and not meeting the prior requirements, and providing the door change gear for the elevator.

Disclosure of Invention

The utility model aims to provide a door change gear for a lifting elevator, which aims to solve the problem that the strength of a metal hub of the door change gear and the strength of a polyurethane outer ring are low in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the door change gear for the elevator comprises a metal hub and a polyurethane outer ring arranged on the outer side of the metal hub, wherein a through hole is formed in one side of the metal hub, an anti-falling part is arranged on one side of the through hole, a bearing is arranged in the metal hub, the bearing is connected with the metal hub through riveting process, and a lining is arranged on the inner wall of the bearing;

the novel metal hub comprises a metal hub outer wall, and is characterized by further comprising a groove, wherein the groove is formed in the middle of the metal hub outer wall, a groove bulge is fixedly adhered to the inner part of the groove, the groove bulge and a polyurethane outer ring are integrally formed, and first planes are formed in two sides of the metal hub outer wall.

Preferably, the two sides of the inner wall of the polyurethane outer ring are provided with second planes, and the second planes are adhered and fixed with the first planes.

Preferably, the inner side surface is arranged on the outer wall of the polyurethane outer ring, the bottom of the inner side surface is provided with a bottom surface bulge, and the bottom surface bulge and the polyurethane outer ring are integrally formed.

Preferably, the outer parts of the inner side surface and the bottom surface bulges are coated with wear-resistant resin coating, and the wear-resistant resin coating is prepared by adopting wear-resistant resin treatment.

Preferably, five equally distributed clamping grooves are formed in the groove, five equally distributed annular clamping plates are fixedly arranged on the inner wall of the protrusion of the groove, and the annular clamping plates are matched with the clamping grooves.

Preferably, the inside of draw-in groove all adheres to and is fixed with first magnetism hoop, the equal adhesion of one end of annular cardboard is fixed with the second magnetism hoop, first magnetism hoop all attracts with the magnetic force of second magnetism hoop.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the groove is formed in the middle of the outer wall of the metal hub, the groove is embedded with the groove bulge of the inner wall of the polyurethane outer ring, so that the bonding strength of the metal hub and the polyurethane outer ring can be increased, the first planes are formed on the two sides of the outer wall of the metal hub, the second planes are formed on the two sides of the inner wall of the polyurethane outer ring, the adhesion between the first planes and the second planes can enable the polyurethane outer ring to have longer service life under forward pressure, stripping failure is not easy to occur, and the bonding strength of the polyurethane outer ring and the metal hub is improved.

2. According to the utility model, the heights of the two sides of the outer wall of the metal hub are reduced, so that the thickness of the polyurethane outer ring is increased, the stress of local stress is smaller when the paired guide rails operate, and the heat generated by repeated compression deformation of the polyurethane outer ring is reduced under the working condition of frequently opening and closing the door, so that the thicker polyurethane outer ring has better comfort degree during operation, and the polyurethane has smaller heating and longer service life.

3. According to the utility model, the inner side surface is arranged on the outer wall of the polyurethane outer ring, when the door change gear slides on the guide rail, the inner side surface is contacted with the bottom surface bulge and the guide rail to form three-point contact fit, so that the stability is improved, when the elevator is subjected to external force, the elevator door change gear is not inclined, the inner side surface and the outer part of the bottom surface bulge are coated with the wear-resistant resin coating, and the wear resistance of the polyurethane outer ring is improved through the wear-resistant resin coating, so that the elevator door change gear is more durable.

4. According to the utility model, the clamping groove is formed in the groove, the clamping groove and the annular clamping plate are fixedly arranged on the inner wall of the protrusion of the groove, and the annular clamping plate is connected with the clamping groove in a jogged manner, so that the bonding strength of the metal hub and the polyurethane outer ring is improved, and meanwhile, the stripping of the polyurethane outer ring is further avoided due to the magnetic attraction of the first magnetic iron ring and the second magnetic iron ring, so that the bonding strength of the metal hub and the polyurethane outer ring is further improved.

Drawings

FIG. 1 is a front view of the internal structure of the present utility model;

FIG. 2 is an exploded view of the internal structure of the present utility model;

FIG. 3 is a schematic view of the polyurethane outer race and guide rail of the present utility model;

FIG. 4 is an enlarged view of a portion of the area A of FIG. 2 in accordance with the present utility model;

fig. 5 is a partial enlarged view of the area B of fig. 2 in accordance with the present utility model.

In the figure: 1. a metal hub; 2. a bushing; 3. a bearing; 4. a polyurethane outer ring; 5. a through hole; 6. an anti-falling part; 7. wear-resistant resin paint; 8. a first plane; 9. a second plane; 10. a groove; 11. the groove is convex; 12. a clamping groove; 13. an annular clamping plate; 14. a first magnetic iron ring; 15. a second magnetic iron ring; 16. an inner side surface; 17. the bottom surface is convex.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a lift is door change gear for elevator, includes metal wheel hub 1 and sets up polyurethane outer lane 4 in metal wheel hub 1 outside, and through-hole 5 has been seted up to one side of metal wheel hub 1, and one side of through-hole 5 is provided with anticreep portion 6, and metal wheel hub 1's inside is provided with bearing 3, and is connected through riveting technology processing between bearing 3 and the metal wheel hub 1, and the inner wall of bearing 3 is provided with bush 2;

the novel metal hub comprises a metal hub body 1, and is characterized by further comprising a groove 10 which is formed in the middle of the outer wall of the metal hub body 1, wherein a groove bulge 11 is fixedly adhered to the inner part of the groove 10, the groove bulge 11 and the polyurethane outer ring 4 are integrally formed, and both sides of the outer wall of the metal hub body 1 are provided with a first plane 8. This lift is with door change gear first plane 8 and second plane 9 makes polyurethane outer lane 4 have longer life under the forward pressure that receives, is difficult for appearing peeling failure, and then makes polyurethane outer lane 4 and metal wheel hub 1 joint strength improve, through the cooperation of recess 10 and recess arch 11, can increase polyurethane outer lane 4 and metal wheel hub 1's area of contact to make polyurethane outer lane 4 and metal wheel hub 1's joint strength improve, annular cardboard 13 card is gone into in draw-in groove 12 can further improve joint strength.

Referring to fig. 2, two sides of the inner wall of the polyurethane outer ring 4 are provided with second planes 9, the second planes 9 are adhered and fixed with the first planes 8, the first planes 8 and the second planes 9 enable the polyurethane outer ring 4 to have longer service life under the forward pressure, stripping failure is not easy to occur, and therefore the bonding strength of the polyurethane outer ring 4 and the metal hub 1 is improved;

referring to fig. 5, an inner side surface 16 is formed on the outer wall of the polyurethane outer ring 4, a bottom surface protrusion 17 is arranged at the bottom of the inner side surface 16, the bottom surface protrusion 17 and the polyurethane outer ring 4 are integrally formed, two sides of a guide rail are contacted with the inner side surface 16, and the top end of the guide rail is contacted with the bottom surface protrusion 17, so that the polyurethane outer ring 4 and the guide rail form three-point contact fit, and stability is improved;

referring to fig. 5, the outer parts of the inner side surface 16 and the bottom surface protrusion 17 are coated with the wear-resistant resin coating 7, and the wear-resistant resin coating 7 is made by adopting wear-resistant resin treatment, so that the wear resistance of the polyurethane outer ring 4 is increased through the wear-resistant resin coating 7, and the polyurethane outer ring is more durable;

referring to fig. 4, five equally distributed clamping grooves 12 are formed in the groove 10, five equally distributed annular clamping plates 13 are fixedly arranged on the inner wall of the groove bulge 11, the annular clamping plates 13 are matched with the clamping grooves 12, and the annular clamping plates 13 are clamped into the clamping grooves 12, so that the bonding strength can be further improved;

referring to fig. 4, the first magnetic iron ring 14 is adhered and fixed inside the clamping groove 12, the second magnetic iron ring 15 is adhered and fixed at one end of the annular clamping plate 13, the first magnetic iron ring 14 and the second magnetic iron ring 15 are attracted by magnetic force, and the stripping of the polyurethane outer ring 4 is further avoided by the magnetic attraction of the first magnetic iron ring 14 and the second magnetic iron ring 15, so that the bonding strength of the metal hub 1 and the polyurethane outer ring 4 is further improved.

Working principle: when in use, the anti-drop part 6 at one side of the through hole 5 can prevent the bearing 3 from separating from the through hole 5 to one side, when the polyurethane outer ring 4 contacts with the guide rail, the two sides of the guide rail can contact with the inner side surface 16, the top end of the guide rail can contact with the bottom surface bulge 17, so that the polyurethane outer ring 4 and the guide rail form three-point contact fit, the stability is increased, when the elevator is lifted and lowered, the elevator door change gear is not inclined, the outer parts of the inner side surface 16 and the bottom surface bulge 17 are coated with the wear-resistant resin coating 7, the wear resistance of the polyurethane outer ring 4 is increased through the wear-resistant resin coating 7, the polyurethane outer ring 4 is more durable, the first plane 8 and the second plane 9 enable the polyurethane outer ring 4 to have longer service life under the forward pressure, the stripping failure is not easy to occur, the bonding strength of the polyurethane outer ring 4 and the metal hub 1 is further improved, simultaneously, the first plane 8 and the second plane 9 reduce the heights of the two sides of the outer wall of the metal hub 1, thereby increasing the thickness of the polyurethane outer ring 4, the stress of local stress is smaller when the matched guide rail runs, and the heat generated by repeated compression deformation of the polyurethane outer ring 4 is reduced under the working condition of frequently opening and closing the door, so that the thicker polyurethane outer ring 4 has better comfort degree during running, and the heat of polyurethane is smaller, thereby prolonging the service life, when the polyurethane outer ring 4 is wrapped and fixed, the contact area of the polyurethane outer ring 4 and the metal hub 1 can be increased through the matching of the groove 10 and the groove bulge 11, thereby improving the bonding strength of the polyurethane outer ring 4 and the metal hub 1, simultaneously, the bonding strength can be further improved when the annular clamping plate 13 is clamped into the clamping groove 12, the magnetic attraction of the first magnetic iron ring 14 and the second magnetic iron ring 15 further avoids the peeling of the polyurethane outer ring 4, thereby further improving the bonding strength of the metal hub 1 and the polyurethane outer ring 4.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a lift is door change gear for elevator, includes metal wheel hub (1) and sets up polyurethane outer lane (4) in the metal wheel hub (1) outside, through-hole (5) have been seted up to one side of metal wheel hub (1), one side of through-hole (5) is provided with anticreep portion (6), the inside of metal wheel hub (1) is provided with bearing (3), and connects through riveting technology processing between bearing (3) and metal wheel hub (1), the inner wall of bearing (3) is provided with bush (2), its characterized in that:

the novel metal hub comprises a metal hub body, and is characterized by further comprising a groove (10) which is formed in the middle of the outer wall of the metal hub body (1), wherein a groove bulge (11) is fixedly adhered to the inner part of the groove (10), the groove bulge (11) and the polyurethane outer ring (4) are integrally formed, and first planes (8) are formed in two sides of the outer wall of the metal hub body (1).

2. The door change gear for a lift elevator according to claim 1, wherein: the two sides of the inner wall of the polyurethane outer ring (4) are provided with second planes (9), and the second planes (9) are adhered and fixed with the first planes (8).

3. The door change gear for a lift elevator according to claim 1, wherein: an inner side surface (16) is arranged on the outer wall of the polyurethane outer ring (4), a bottom surface bulge (17) is arranged at the bottom of the inner side surface (16), and the bottom surface bulge (17) and the polyurethane outer ring (4) are integrally formed.

4. A door change gear for a lift elevator as claimed in claim 3, wherein: the outer parts of the inner side surface (16) and the bottom surface bulge (17) are coated with wear-resistant resin paint (7), and the wear-resistant resin paint (7) is prepared by adopting wear-resistant resin treatment.

5. The door change gear for a lift elevator according to claim 1, wherein: five equally distributed clamping grooves (12) are formed in the groove (10), five equally distributed annular clamping plates (13) are fixedly arranged on the inner wall of the groove bulge (11), and the annular clamping plates (13) are matched with the clamping grooves (12).

6. The door change gear for a lift elevator according to claim 5, wherein: the inside of draw-in groove (12) all adheres to and is fixed with first magnetism hoop (14), the one end of annular cardboard (13) all adheres to and is fixed with second magnetism hoop (15), first magnetism hoop (14) all attracts with second magnetism hoop (15) magnetic force.