CN220055969U

CN220055969U - Novel nylon-coated polyurethane elevator door change gear

Info

Publication number: CN220055969U
Application number: CN202223578566.1U
Authority: CN
Inventors: 陈挺; 查嘉莉
Original assignee: Zhejiang Fuwei Intelligent Technology Co ltd
Current assignee: Zhejiang Fuwei Intelligent Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-11-21
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a novel nylon-coated polyurethane elevator door change gear which comprises an outer ring and a bearing arranged on the inner side of the outer ring, wherein an arc-shaped groove is formed in the outer end edge of the outer ring, a paint layer is arranged on the surface of the outer ring, a plurality of road grooves are formed in the arc-shaped groove in a staggered manner, and a polyurethane layer coated on the road grooves is further arranged in the arc-shaped groove.

Description

Novel nylon-coated polyurethane elevator door change gear

Technical Field

The utility model relates to the technical field of rollers, in particular to a novel nylon-coated polyurethane elevator door change gear.

Background

Elevators are one of the most important parts of the building floor, while the change gear used on an elevator is an important component in an elevator system. The existing elevator change gear can be provided with a layer of wear-resisting layer on the change gear due to frequent use, so that the abrasion of the change gear is reduced, the service life of the change gear is prolonged, the outer ring of the existing roller structure is evenly coated with a paint layer, the paint layer is easy to fall off in the frequent use process, and the performance of the elevator paint roller is seriously affected. Therefore, a new nylon-coated polyurethane elevator door change gear is needed.

Disclosure of Invention

The utility model aims to solve one of the technical problems existing in the prior art.

The utility model provides a novel nylon-coated polyurethane elevator door change gear which comprises an outer ring and a bearing arranged on the inner side of the outer ring, wherein a paint layer is arranged on the surface of the outer ring, arc-shaped grooves are formed in the outer end edge of the outer ring, a plurality of road grooves are formed in the arc-shaped grooves in a staggered manner, and a polyurethane layer coated on the road grooves is further arranged in the arc-shaped grooves.

Adopt foretell scheme, through set up a plurality of line grooves in the arc inslot crisscross, increase the contact effort on line groove and polyurethane layer, utilize the glued joint effort of polyurethane layer and arc groove simultaneously, help improving the connection stability of polyurethane layer and arc groove, avoid the polyurethane layer to come unstuck, through setting up the polyurethane layer, play the effect of isolation protection to the paint layer on the surface of the outer race, prevented that the paint layer from droing easily.

Further, the outer ring is made of nylon PA66 material.

Further, the outer race has a diameter of 48 mm to 56 mm.

Further, the radius of the arc-shaped groove is 5.5 mm to 6 mm.

Further, the bearing comprises an inner ring arranged on the inner side of the outer ring, ball tracks arranged on the inner side of the outer ring and the outer side of the inner ring, and a plurality of balls arranged between the two ball tracks.

Further, the outer lane left and right sides all is equipped with the sealed lid that is used for sealed bearing, the annular spacing groove that two and sealed lid cooperation were used has been seted up to the inboard bilateral symmetry of outer lane, sealed lid joint is in the spacing inslot, a plurality of spacing mouths have been seted up on the sealed lid, be equipped with the joint piece in spacing mouthful department of joint on the inner circle, the joint piece is including running through two dead levers that set up in spacing mouthful department and interval, be located sealed lid outside and with dead lever fixed connection's wedge bulge.

The beneficial effects of the present utility model will be described in detail in the examples, thereby making the beneficial effects more apparent.

Drawings

FIG. 1 is a schematic diagram of a specific structure of an embodiment of the present utility model;

FIG. 2 is a right side view of FIG. 1;

FIG. 3 is a schematic view of a partial longitudinal cross-sectional structure of FIG. 1;

fig. 4 is an enlarged schematic view of the structure at a in fig. 3.

Reference numerals

1. An outer ring; 2. an arc-shaped groove; 3. a road groove; 4. sealing cover; 5. a limit opening; 6. wedge-shaped protruding blocks; 7. a ball; 8. a fairway; 9. an annular limit groove; 10. a fixed rod; 11. an inner ring.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present utility model, fall within the scope of protection of the present utility model.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present utility model may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The following describes embodiments of the present utility model in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

Example 1:

as shown in fig. 1-4, this embodiment provides a new nylon-covered polyurethane elevator door change gear, which comprises an outer ring 1, a bearing arranged on the inner side of the outer ring 1, an arc groove 2 arranged on the outer end edge of the outer ring 1, a plurality of road grooves 3 arranged in the arc groove 2 in a staggered manner, and a polyurethane layer coated on the road grooves 3 arranged in the arc groove 2.

Adopt foretell scheme, through set up a plurality of line grooves 3 in arc wall 2 crisscross, increase the contact effort on line groove 3 and polyurethane layer, utilize polyurethane layer and arc wall 2's cementing effort simultaneously, help improving polyurethane layer and arc wall 2's connection stability, avoid the polyurethane layer to come unstuck. Through setting up the polyurethane layer, play the effect of isolation protection to the paint layer on outer lane 1 surface, prevented that the paint layer from droing easily.

Example 2:

in this embodiment, in addition to including the structural features of the previous embodiments, the polyurethane layer is made of a transparent polyurethane material that is a TDI-PTMEG mixture.

By adopting the scheme, the polyurethane layer is made of the transparent polyurethane material, so that the adhesion degree of the polyurethane layer and the arc-shaped groove 2 can be conveniently observed and detected, and the defects of bubbles, shrinkage, cracks and the like are overcome, and the adhesive failure is caused.

Example 3:

in this embodiment, except for including the structural features of the foregoing embodiment, the outer ring 1 is made of nylon PA66 material.

By adopting the scheme, the outer ring 1 is made of nylon PA66 material, and the service performance of the outer ring 1 is stronger by utilizing the characteristic of nylon.

Example 4:

in this embodiment, the outer race 1 has a diameter of 52 mm in addition to the structural features of the previous embodiment.

By adopting one of the above-mentioned solutions, a better adaptation of the outer ring 1 to the elevator is facilitated.

Example 5:

in this embodiment, the radius of the arcuate slot 2 is 5.75 mm in addition to the structural features of the previous embodiments.

By adopting the scheme, the sliding effect on the door head guide rail is improved.

Example 6:

in this embodiment, in addition to including the structural features of the foregoing embodiment, the bearing includes an inner race 11 disposed inside the outer race 1, ball tracks 8 disposed inside the outer race 1 and outside the inner race 11, and a plurality of balls 7 disposed between the two ball tracks 8.

By adopting the scheme, the balls 7 are arranged between the two ball tracks 8, so that the ball tracks 8 are limited, and the rotation stability of the outer ring 1 and the inner ring 11 is improved.

Example 7:

in this embodiment, except including the structural feature of the foregoing embodiment, the left and right sides of the outer ring 1 are all provided with sealing covers 4 for sealing bearings, the inside bilateral symmetry of the outer ring 1 is provided with two annular limiting grooves 9 used in cooperation with the sealing covers 4, the sealing covers 4 are clamped in the limiting grooves, the sealing covers 4 are provided with a plurality of limiting openings 5, the inner ring 11 is provided with clamping pieces clamped at the limiting openings 5, and the clamping pieces comprise two fixing rods 10 penetrating through the limiting openings 5 and arranged at intervals, and wedge-shaped protruding blocks 6 located outside the sealing covers 4 and fixedly connected with the fixing rods 10.

By adopting the scheme, the sealing cover 4 is arranged, so that the sealing cover 4 shields the inner ring 11 and plays a role in blocking dust; through the cooperation of dead lever 10 and wedge bulge 6, utilize the joint of dead lever 10 to spacing mouthful 5 on the one hand, be convenient for sealed lid 4 and inner circle 11 rotate simultaneously, avoid sealed lid 4's setting can influence the normal rotation between inner circle 11 and the outer lane 1, on the other hand, through setting up wedge bulge 6, make wedge bulge 6 and sealed lid 4 contact, play the effect of pressing down to sealed lid 4, play the effect of compressing tightly to sealed lid 4 setting on inner circle 11.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present utility model is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.

Claims

1. A new nylon-coated polyurethane elevator door change gear is characterized in that: the novel polyurethane coating comprises an outer ring and a bearing arranged on the inner side of the outer ring, wherein a paint layer is arranged on the surface of the outer ring, arc-shaped grooves are formed in the outer end edge of the outer ring, a plurality of road grooves are formed in the arc-shaped grooves in a staggered mode, and a polyurethane layer coated on the road grooves is further arranged in the arc-shaped grooves.

2. A new nylon-coated polyurethane elevator door change gear according to claim 1, characterized in that: the outer ring is made of nylon PA66 material.

3. A new nylon-coated polyurethane elevator door change gear according to claim 1, characterized in that: the outer race has a diameter of 48 mm to 56 mm.

4. A new nylon-coated polyurethane elevator door change gear according to claim 1, characterized in that: the radius of the arc-shaped groove is 5.5 mm to 6 mm.

5. A new nylon-coated polyurethane elevator door change gear according to claim 1, characterized in that: the bearing comprises an inner ring arranged on the inner side of the outer ring, ball tracks arranged on the inner side of the outer ring and the outer side of the inner ring, and a plurality of balls arranged between the two ball tracks.

6. The new nylon-coated polyurethane elevator door change gear according to claim 5, wherein: the sealing device is characterized in that sealing covers for sealing bearings are arranged on the left side and the right side of the outer ring, two annular limiting grooves matched with the sealing covers are symmetrically formed in the left side and the right side of the inner side of the outer ring, the sealing covers are clamped in the limiting grooves, a plurality of limiting openings are formed in the sealing covers, clamping pieces clamped at the limiting openings are arranged on the inner ring, and each clamping piece comprises two fixing rods which are arranged at the limiting openings in a penetrating mode at intervals, and wedge-shaped protruding blocks which are located on the outer side of the sealing covers and fixedly connected with the fixing rods.