CN214732158U - Wear-resisting handrail bearing roller - Google Patents

Abstract

The application discloses wear-resisting handrail bearing roller, including the axis of rotation, the roller head, roller shell and antifriction subassembly, the roller head rotates and sets up in the axis of rotation both ends, the roller shell is fixed to be set up between the roller head, the antifriction subassembly sets up in the roller shell, the antifriction subassembly includes the antifriction sleeve pipe, antifriction spare and elastic component, the antifriction sleeve pipe rotates the cover and locates in the axis of rotation, elastic component and antifriction sleeve pipe fixed connection are passed through to antifriction spare one end, the clearing hole has been seted up on the roller shell, the other end of antifriction spare passes the clearing hole and extends the roller shell outside, the antifriction subassembly can reduce the area of contact of conveying track and handrail bearing roller and the pressure to the handrail bearing roller, thereby reduce wear, increase the life of handrail bearing roller.

Description

Wear-resisting handrail bearing roller

Technical Field

The application relates to the technical field of carrier roller equipment, in particular to a wear-resistant handrail carrier roller.

Background

An escalator, also known as an escalator or an escalator for moving pedestrians, a handrail elevator and an escalator, is a type of escalator with circulating running steps, is a fixed electric drive device used for transporting passengers upwards or downwards and is generally in an inclined position. The steps or tracks of the escalator, on which the pedestrian is automatically walking at one end, are automatically taken to the other end of the escalator.

The bottom of a common slope type escalator is supported by a carrier roller, the carrier roller is used as a part with the largest use amount, and the escalator has the advantages of small transportation resistance, stable speed and high support strength, but the service life of the carrier roller also influences the normal operation, the service life and the equipment energy consumption of the escalator.

However, the existing handrail carrier roller has the following defects: because slope escalator generally uses the conveying track, can lead to handrail bearing roller wearing and tearing very fast, long-term use influences escalator's operating stability easily, reduces the safety in utilization simultaneously.

Disclosure of Invention

An object of this application is to provide a difficult wearing and tearing, long service life's wear-resisting handrail bearing roller.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: the utility model provides a wear-resisting handrail bearing roller, includes axis of rotation, roller head, roller shell and antifriction subassembly, the roller head rotate set up in the axis of rotation both ends, the roller shell fixed set up in between the roller head, the antifriction subassembly set up in the roller shell, the antifriction subassembly includes antifriction sleeve pipe, antifriction spare and elastic component, the antifriction sleeve pipe rotates the cover and locates in the axis of rotation, antifriction spare one end is passed through the elastic component with antifriction sleeve pipe fixed connection, the clearing hole has been seted up on the roller shell, the other end of antifriction spare passes the clearing hole extends the roller shell is outside.

The roller head is provided with an accommodating cavity, a bearing is arranged in the accommodating cavity, the bearing is rotatably sleeved on the rotating shaft and is rotatably connected with the roller head, and a labyrinth sealing element covers the outer side of the bearing.

The two ends of the antifriction sleeve are rotationally clamped in the roller head, and a sealing ring is arranged between the antifriction sleeve and the roller head.

The roller head is provided with a clamping convex block, the roller sleeve is provided with a clamping groove, and the clamping convex block and the clamping groove can be mutually matched and connected.

The main body of the antifriction part is cylindrical, the antifriction part can be slidably arranged in the through hole, and the top edge of the antifriction part is provided with an antifriction fillet.

The material of the antifriction component comprises hard alloy or ultra-high molecular weight polymer.

The elastic member includes a low-elasticity compression spring.

Compared with the prior art, the beneficial effect of this application lies in: be provided with the antifriction subassembly in the roller shell, when the handrail bearing roller sets up in the conveyer belt below, extend the antifriction spare outside the roller shell and can reduce the area of contact of conveyer belt and handrail bearing roller and the pressure to the handrail bearing roller, antifriction spare has higher wearability simultaneously, can take place the contact preferentially with the conveyer belt, replace roller shell and conveyer belt and take place wearing and tearing, antifriction spare can be influenced by the elastic component after taking place wearing and tearing and continue to replace wearing and tearing to the roller shell of overhanging department, roller shell and antifriction subassembly all are independent detachable design, can dismantle fast and change the maintenance.

Drawings

FIG. 1 is a perspective view of a preferred embodiment according to the present application;

FIG. 2 is an exploded view of a preferred embodiment according to the present application;

FIG. 3 is a top view of a preferred embodiment according to the present application;

FIG. 4 is a cross-sectional view taken along the line A-A of FIG. 3, in accordance with a preferred embodiment of the present application;

fig. 5 is an enlarged view at a in fig. 4 according to a preferred embodiment of the present application.

In the figure: 1. a rotating shaft; 2. a roll head; 21. an accommodating chamber; 211. a bearing; 212. a labyrinth seal; 22. clamping the convex block; 3. a roller sleeve; 31. through the hole; 32. clamping the groove; 4. a wear reduction assembly; 41. an antifriction sleeve; 42. a wear reducing member; 421. reducing the abrasion of round corners; 43. an elastic member; 5. and (4) a sealing ring.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The present application is further described with reference to the accompanying drawings:

as shown in fig. 1 to 4, a preferred embodiment of the present application includes a rotating shaft 1, a roller head 2, a roller sleeve 3 and an anti-wear assembly 4, the roller head 2 is rotatably disposed at two ends of the rotating shaft 1, the roller sleeve 3 is fixedly disposed between the roller heads 2, the anti-wear assembly 4 is disposed in the roller sleeve 3, the anti-wear assembly 4 includes an anti-wear sleeve 41, an anti-wear member 42 and an elastic member 43, the anti-wear sleeve 41 is rotatably sleeved on the rotating shaft 1, one end of the anti-wear member 42 is fixedly connected to the anti-wear sleeve 41 through the elastic member 43, a through hole 31 is disposed on the roller sleeve 3, and the other end of the anti-wear member 42 extends to the outside of the roller sleeve 3 through the through hole 31.

Set up antifriction subassembly 4 in roller shell 3, when the handrail bearing roller sets up in the conveying track below, the antifriction piece 42 that extends outside roller shell 3 can reduce the area of contact of conveying track and handrail bearing roller and the pressure to the handrail bearing roller, antifriction piece 42 has higher wearability simultaneously, can take place to contact with the conveying track preferentially, replaces roller shell 3 and takes place the wearing and tearing with the conveying track, can continue to carry out the alternative wearing and tearing to overhanging department roller shell 3 by elastic component 43 influence after antifriction piece 42 takes place the wearing and tearing.

The roller sleeve 3 and the antifriction component 4 are independently designed to be disassembled, and if one of the roller sleeve 3 and the antifriction component 4 is damaged, the roller sleeve can be disassembled, replaced and maintained quickly.

The material of the wear reducing member 42 includes cemented carbide or ultra-high molecular weight polymer, and the ultra-high molecular weight polymer is preferably ultra-high molecular weight polyethylene, and has high wear resistance and impact strength.

The elastic member 43 includes a low-elasticity pressure spring which can prevent the excessive force of the antifriction member 42, causing the conveying track to be separated from the roller shell 3, affecting the normal operation of the escalator.

Seted up on roller head 2 and held chamber 21, held the inside bearing 211 that is provided with in chamber 21, bearing 211 rotates the cover and locates on axis of rotation 1 and rotate with roller head 2 and be connected, and the bearing 211 outside covers has labyrinth seal 212, and labyrinth seal 212 can increase roller head 2's leakproofness for avoid dust and liquid directly to get into in the bearing 211 who holds chamber 21, influence bearing 211's life.

Be provided with joint lug 22 on the roller head 2, seted up joint recess 32 on the roller shell 3, joint lug 22 and joint recess 32 can mutually support and connect, and 3 accessible joint recesses 32 joints of roller shell are to the joint lug 22 department of roller head 2, ensure that roller shell 3 can follow roller head 2 and rotate, guarantee the uniformity of motion.

As shown in fig. 5, the two ends of the antifriction sleeve 41 are rotatably clamped into the roller head 2, the antifriction sleeve 41 can rotate along with the roller head 2, the sealing ring 5 is arranged between the antifriction sleeve 41 and the roller head 2, the antifriction piece 42 can be movably arranged, so that the tightness between the roller sleeve 3 and the antifriction piece 42 is poor, and the sealing ring 5 is arranged between the antifriction sleeve 41 and the roller head 2 to prevent dust and liquid from entering the roller head 2 through the antifriction assembly 4.

The main body shape of antifriction spare 42 is cylindrical, and antifriction spare 42 slidable sets up in clearing hole 31, and cylindrical structure can reduce antifriction spare 42 when the activity and the roller shell 3 between wearing and tearing, and the top border of antifriction spare 42 is provided with antifriction fillet 421, makes antifriction spare 42 can not influence the laminating between conveying track and the roller shell 3 when following roller shell 3 and rotating, avoids forming wearing and tearing to conveying track.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (7)

1. The utility model provides a wear-resisting handrail bearing roller which characterized in that: including axis of rotation, roller head, roller shell and antifriction subassembly, the roller head rotate set up in the axis of rotation both ends, the roller shell fixed set up in between the roller head, the antifriction subassembly set up in the roller shell, the antifriction subassembly includes antifriction sleeve pipe, antifriction spare and elastic component, the antifriction sleeve pipe rotates the cover to be located in the axis of rotation, antifriction spare one end is passed through the elastic component with antifriction sleeve pipe fixed connection, the clearing hole has been seted up on the roller shell, the other end of antifriction spare passes the clearing hole extends the roller shell is outside.

2. A wear-resistant handrail idler as claimed in claim 1 wherein: the roller head is provided with an accommodating cavity, a bearing is arranged in the accommodating cavity, the bearing is rotatably sleeved on the rotating shaft and is rotatably connected with the roller head, and a labyrinth sealing element covers the outer side of the bearing.

3. A wear-resistant handrail idler as claimed in claim 1 wherein: the two ends of the antifriction sleeve are rotationally clamped in the roller head, and a sealing ring is arranged between the antifriction sleeve and the roller head.

4. A wear-resistant handrail idler as claimed in claim 1 wherein: the roller head is provided with a clamping convex block, the roller sleeve is provided with a clamping groove, and the clamping convex block and the clamping groove can be mutually matched and connected.

5. A wear-resistant handrail idler as claimed in claim 1 wherein: the main body of the antifriction part is cylindrical, the antifriction part can be slidably arranged in the through hole, and the top edge of the antifriction part is provided with an antifriction fillet.

6. A wear-resistant handrail idler as claimed in claim 1 wherein: the material of the antifriction component comprises hard alloy or ultra-high molecular weight polymer.

7. A wear-resistant handrail idler as claimed in claim 1 wherein: the elastic member includes a low-elasticity compression spring.

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