CN207684698U

CN207684698U - Roll wheel assembly

Info

Publication number: CN207684698U
Application number: CN201721819322.4U
Authority: CN
Inventors: 刘良爱; 郑挺健; 郑士泼
Original assignee: Sanmen Zhongying Technology Co Ltd
Current assignee: Sanmen Zhongying Technology Co., Ltd
Priority date: 2017-12-23
Filing date: 2017-12-23
Publication date: 2018-08-03
Anticipated expiration: 2027-12-23

Abstract

The utility model discloses a kind of roll wheel assemblies, including bearing, centre bearing and nylon roller, the nylon roller passes through the movable connection of centre bearing with bearing, the outer edge of the nylon roller is equipped with groove, the groove is equipped with tooth socket, layer of polyurethane, the alligator used using cooperation tooth socket on the layer of polyurethane are bonded on the tooth socket.Its feature is：Wear-resisting service life increases and layer of polyurethane is not easy to be separated with groove.

Description

Roll wheel assembly

Technical field

The utility model belongs to elevator accessory technical field, more particularly, to a kind of roll wheel assembly.

Background technology

Elevator is an essential part in skyscraper, and Elevator roller uses very frequency in entire elevator device It is numerous, such as on the door lock assembly of elevator landing door system, being highly important parts.Existing Elevator roller makes Material is generally iron addition polymerization urethane or plastics, and manufacturing cost is high, and manufacturing procedure is cumbersome.Since idler wheel outer ring overall structure is usually Exposed, in use, idler wheel constantly rolls around, and service life easy to wear is short, is arranged outside idler wheel outer ring resistance to Though grinding ring can slow down the abrasion to idler wheel outer ring be easy to fall off or shift in use cause it is inconvenient for use, therefore It is necessary to be improved.

Invention content

The purpose of this utility model is in view of the deficiency of the prior art, to provide a kind of roll wheel assembly, it has resistance to The characteristics of mill service life increases and layer of polyurethane is not easy to be separated with groove.

To achieve the goals above, technical solution used by the utility model is：A kind of roll wheel assembly, including bearing, Centre bearing and nylon roller, the nylon roller and bearing by the movable connection of centre bearing, the nylon roller it is outer Edge is equipped with groove, and the groove is equipped with tooth socket, is bonded with layer of polyurethane on the tooth socket, on the layer of polyurethane use match Close the alligator that tooth socket uses.

Further, the groove is arc groove.

Further, the both sides of the groove are equipped with protrusion, and the height of the protrusion is not less than the thickness of layer of polyurethane.

With the above structure, the utility model is compared to the prior art advantageously：The idler wheel master of the application Body is used using nylon and polyurethane formulation, and the cost of wherein nylon is low, the wear-resisting use that can improve this product of polyurethane material Both service life are with the use of increasing its cost performance, and layer of polyurethane is bonded on the tooth socket of groove and is avoided that was using in this way Layer of polyurethane displacement caused by prolonged stress is detached from groove in turn in journey.

Description of the drawings

Fig. 1 is the schematic top plan view of the utility model.

Fig. 2 is the schematic front view of the utility model.

Specific implementation mode

As described below is only the preferred embodiment of the utility model, does not therefore limit the protection model of the utility model It encloses, the utility model is further illustrated with reference to the accompanying drawings and examples.

Embodiment is shown in shown in Fig. 1 to Fig. 2：A kind of roll wheel assembly, including bearing 10, centre bearing 20 and nylon roller 30, Wherein nylon roller 30 passes through 20 movable connection of centre bearing with bearing 10, it is characterised in that：Wherein nylon roller 30 is outer Edge is equipped with groove, and further groove is arc groove, can increase active area；Tooth socket 40 is equipped on groove, on tooth socket 40 It is bonded with layer of polyurethane 50, the alligator used using cooperation tooth socket 40 wherein on layer of polyurethane 50, so that layer of polyurethane 50 Being bonded on groove for more stablizing avoids layer of polyurethane 50 from being detached from use.The both sides of its further groove are equipped with protrusion 41, the height of protrusions 41 is not less than the thickness of layer of polyurethane 50, can further avoid displacement in use in this way, into And it influences its viscous stickiness and layer of polyurethane 50 is caused to be detached from use.

Claims

1. a kind of roll wheel assembly, including bearing, centre bearing and nylon roller, the nylon roller passes through centre bearing with bearing Movable connection, it is characterised in that：The outer edge of the nylon roller is equipped with groove, and the groove is equipped with tooth socket, the tooth Layer of polyurethane, the alligator used using cooperation tooth socket on the layer of polyurethane are bonded on slot.

2. roll wheel assembly according to claim 1, it is characterised in that：The groove is arc groove.

3. roll wheel assembly according to claim 1, it is characterised in that：The both sides of the groove are equipped with protrusion, the protrusion Height be not less than layer of polyurethane thickness.