CN215325698U

CN215325698U - Tensioning roller with built-in balance weight

Info

Publication number: CN215325698U
Application number: CN202121553942.4U
Authority: CN
Inventors: 杨颖�; 张克纯
Original assignee: Guizhou Rongbai Lithium Electrical Materials Co ltd
Current assignee: Guizhou Rongbai Lithium Electrical Materials Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-12-28
Anticipated expiration: 2031-07-08

Abstract

The utility model provides a tensioning roller with a built-in counterweight, which is characterized in that: the roller comprises locking nuts, rolling bearings, a roller shaft, balancing weights, a roller skin, a connecting disc, fasteners and a transparent cover, wherein the locking nuts are arranged at two ends of the roller shaft, the connecting disc is movably connected with the roller skin through the fasteners, the rolling bearings are arranged at the inner ring of the connecting disc and are used for enabling the roller to rotate around the roller shaft, the outer surface of the roller is bolted with the fasteners for the transparent cover, and the middle of the roller shaft is fixed with a plurality of groups of balancing weights through the fasteners. Compared with the prior art, the utility model has the following beneficial effects: according to the utility model, the balancing weight is arranged in the roller, so that the space of the vertical tensioning device is saved, the tensioning device is more stable when the stacker-reclaimer pitches, and the phenomenon that the on-site heavy hammer block falls off is avoided.

Description

Tensioning roller with built-in balance weight

Technical Field

The utility model relates to a tensioning roller with a built-in counterweight, belonging to the technical field of material piling and taking.

Background

The stacker-reclaimer is also called a bucket-wheel stacker-reclaimer, a stacker and a reclaimer, and is a novel high-efficiency continuous loading and unloading machine. The device is mainly used for loading and unloading iron ores (sand), coal, sand and the like in bulk cargo storage yards of bulk cargo professional wharfs, steel plants, large-scale thermal power plants, mines and the like. At present, most of belt conveyors used in a material piling and taking site adopt a vertical tensioning mode, but the pitching angle of the material piling and taking machine is large, so that a heavy hammer block falling event often occurs, and the vertical tensioning device becomes a great hidden danger, so that the research of a novel vertical tensioning device becomes a new subject for the research of designers.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a tensioning roller with a built-in counterweight, so as to solve the problem that the counterweight block falls off in the background technology.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a tensioning roller with built-in balance weight comprises locking nuts, rolling bearings, a roller shaft, balance weights, a roller skin, a connecting disc, fasteners and a transparent cover, wherein the locking nuts are arranged at two ends of the roller shaft, the connecting disc is movably connected with the roller skin through the fasteners, the rolling bearings are arranged at the inner ring of the connecting disc and used for enabling the roller to rotate around the roller shaft, the outer surface of the roller is bolted with the fasteners for the transparent cover, and a plurality of groups of balance weights are fixed in the middle of the roller shaft through the fasteners.

Furthermore, the flange is a casting part, the inner ring is provided with through holes with the same diameter as the outer ring of the rolling bearing, and the outer surface of the flange is provided with a plurality of groups of threaded holes so that the transparent cover is connected with a fastener.

Furthermore, the roller shaft is a stepped shaft, a shaft shoulder is arranged at the assembly position of the roller shaft and the rolling bearing so as to fix the inner ring of the rolling bearing, and the roller shaft is made of 42 CrMo.

Furthermore, the middle part of the roller shaft is provided with at least two groups of threaded holes.

Furthermore, the cylinder skin is formed by bending a steel plate with the thickness of 25mm, and a 55-degree groove welding is formed at the interface.

The utility model has the beneficial effects that: the utility model effectively avoids the problem that the weight block falls off on site by arranging the weight block inside the tensioning roller, and in addition, the flange of the roller is bolted with the roller skin, which is more favorable for replacing spare parts and parts which are easy to wear. The field operation is safer and more efficient.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a tension roller with an internal counterweight according to the present invention;

FIG. 2 is an enlarged view of the skin interface of a tensioning roller with an internal counterweight according to the present invention;

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Referring to fig. 1, the present invention provides a technical solution: a tensioning roller with built-in balance weight comprises locking nuts 1, rolling bearings 2, a roller shaft 3, a balance weight block 4, a roller skin 5, a flange 6, a fastener 7 and a transparent cover 8, wherein the locking nuts 1 are arranged at two ends of the roller shaft 3 so as to limit the roller from moving in the left-right direction. The lock nut 1 is generally used in combination with a dedicated washer. The flange 6 is movably connected with the drum skin 5 by a fastener, preferably bolted by a bolt, so that the replacement is convenient. The flange 6 is a casting part, and is integrally formed with a connecting hole of the drum skin 5 when casting is needed, so that the later-stage processing amount is reduced, through holes for bolting through covers are formed in the circumference of the outer surface of the flange 6, the diameter of the inner ring of the flange 6 is the same as that of the outer ring of the rolling bearing 2, the drum shaft 3 is a stepped shaft, external threads of 200 mm and 300mm are arranged at the first shaft shoulders at the two end parts so as to facilitate the connection of the locking nut 1, and the second shaft shoulder is matched with the inner ring of the rolling bearing 2 and is clamped with the first shaft shoulders, so that the rolling bearing 2 is prevented from moving left and right. The roller bearing 2 is preferably a single-row roller bearing for realizing the rotation of the drum around the drum shaft 3. The middle part of the roller shaft is provided with a threaded hole for fixing a plurality of groups of balancing weights. When the vertical tensioning roller is used, the vertical tensioning roller slides up and down on the guide rail frame through the sliding block, and once the stacker-reclaimer rubber belt conveyor is tensioned, the roller is fixed in position and cannot move in a string manner to a large extent.

Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A tensioning roller with built-in counterweight is characterized in that: the roller comprises locking nuts, rolling bearings, a roller shaft, balancing weights, a roller skin, a connecting disc, fasteners and a transparent cover, wherein the locking nuts are arranged at two ends of the roller shaft, the connecting disc is movably connected with the roller skin through the fasteners, the rolling bearings are arranged at the inner ring of the connecting disc and are used for enabling the roller to rotate around the roller shaft, the outer surface of the roller is bolted with the fasteners for the transparent cover, and the middle of the roller shaft is fixed with a plurality of groups of balancing weights through the fasteners.

2. The tension roller with built-in counterweight according to claim 1, characterized in that: the flange is a casting part, the inner ring is provided with through holes with the same diameter as the outer ring of the rolling bearing, and the outer surface of the flange is provided with a plurality of groups of threaded holes so that the transparent cover is connected with a fastener.

3. The tension roller with built-in counterweight according to claim 1, characterized in that: the roller shaft is a stepped shaft, a shaft shoulder is arranged at the assembly position of the roller shaft and the rolling bearing so as to fix the inner ring of the rolling bearing, and the roller shaft is made of 42 CrMo.

4. The tension roller with built-in counterweight according to claim 3, characterized in that: the middle part of the roller shaft is provided with at least two groups of threaded holes.

5. The tension roller with built-in counterweight according to claim 1, characterized in that: the cylinder skin is formed by bending a steel plate with the thickness of 25mm, and 55-degree groove welding is formed at the interface.