CN201858253U

CN201858253U - Bearing for trolley wheel of annular cooler

Info

Publication number: CN201858253U
Application number: CN201020583324XU
Authority: CN
Inventors: 林文敏; 王明浩
Original assignee: China First Metallurgical Group Co Ltd
Current assignee: China First Metallurgical Group Co Ltd
Priority date: 2010-10-29
Filing date: 2010-10-29
Publication date: 2011-06-08
Anticipated expiration: 2020-10-29

Abstract

The utility model relates to a bearing for a trolley wheel of an annular cooler, comprising a cylindrical rolling body, wherein a left flat retainer ring and a right flat retainer ring are respectively arranged at both ends of the rolling body; an inner bearing sleeve is arranged at the inner side of the rolling body, and an outer bearing sleeve is arranged at the outer side of the rolling body; and the width of the bearing is greater than or equal to 120mm. The bearing has the following characteristics: the bearing is non-standard, has a simple structure and is easy to assemble, disassemble, overhaul and maintain; the service life of the bearing is prolonged, the overhauling time is shortened and a great amount of labor is saved at the same time; potential safety hazards in maintenance of equipment are eliminated, major accidents of the equipment are avoided and the operation efficiency is increased.

Description

Circular cooler trolley wheel bearing

Technical field

The utility model relates to a kind of bearing, relates in particular to a kind of circular cooler trolley wheel bearing.

Background technique

When the friction plate on the friction wheel driving rotational framework of central cooler is made circular movement, cause the wheel counter-force by loading, then the chassis bearing bears thrust load and radial load, because loading is big, chassis is from great, thrust load and radial load that bearing bears are bigger.Wheel external diameter φ=800mm, internal diameter φ=230mm, diameter of axle φ=130mm, so chassis wheel selects the axle group of two cover standard rolling bearings (model 22226) for use, as Fig. 1.

Bearing 22226 is biserial spheric roller bearings entad, has retainer, can bear a spot of bi-directional axial load." rolling bearing service behaviour comparison sheet commonly used " spells out in " mechanical design handbook ", and entad the biserial spheric roller bearing bears the thrust load ability for poor, and in the occasion that has, bearing 22226 can not satisfy the requirement of work fully.

Existing model 22226 bearings bear bigger thrust load and radial load, and bearing wear is fast, and working life is short, and be 10-11 month average life, spare part cost height.Simultaneously, because the chassis wheel adopts the assembling form of two cover bearings, on the one hand, mounting or dismounting are difficulty relatively, is not easy to maintenance and maintenance, takies a large amount of repair times, consumes a large amount of labour forces; On the other hand, the abrasion condition of the inside one cover bearing is difficult for accurately judging, and exists hidden danger in the maintenance, causes the substantial equipment accident easily.

The model utility content

The utility model is in order to overcome the deficiencies in the prior art, and provide a kind of simple in structure, be easy to mounting or dismounting, maintenance and maintenance, prolonged the working life of bearing, saved the repair time, saved a large amount of labour forces simultaneously; Eliminate the hidden danger that exists in plant maintenance, the maintenance, avoided the generation of substantial equipment accident, improved the circular cooler trolley wheel bearing of operating rate.

The technical solution adopted in the utility model:

It comprises cylindrical rolling element, and the rolling element two ends are respectively equipped with left loose rib and right loose rib, and the rolling element inboard is provided with bearing inner sleeve, and the rolling element outside is provided with bearing outside, described bearing width greater than/or equal 120mm.

The technique effect that the utility model is obtained:

1, the utility model is an established line bearing, and it is simple in structure, is easy to mounting or dismounting, maintenance and maintenance, has prolonged the working life of bearing, has saved the repair time, has saved a large amount of labour forces simultaneously; Eliminate the hidden danger that exists in plant maintenance, the maintenance, avoided the generation of substantial equipment accident, improved operating rate.

Description of drawings

Structural representation when Fig. 1 uses for the assembling of current version 22226 bearings;

Structural representation when Fig. 2 uses for the utility model assembling.

Wherein, 1-bearing outside, 2-rolling element, 3-bearing inner sleeve, the right loose rib of 4-, 5-left side loose rib, 6-model 22226 bearings.

Embodiment

Below in conjunction with accompanying drawing mode of execution of the present utility model is described further.

Referring to Fig. 2, a kind of circular cooler trolley wheel is used bearing, and it comprises cylindrical rolling element 2, the rolling element two ends are respectively equipped with left loose rib 5 and right loose rib 4, the rolling element inboard is provided with bearing inner sleeve 3, and the rolling element outside is provided with bearing outside 1, described bearing width greater than/or equal 120mm.

According to the size in chassis wheel hole, the size of axle and the requirement of load, design a cover established line bearing and replaced two cover standard rolling bearings, the utility model adopts the roller bearing of no retainer; The width of widening bearing satisfies the requirement of wheel hole depth to 120mm; Adopt the bearing outside of both sides band back-up ring, the both sides back-up ring is thickeied 20mm, increases the ability that bearing bears bi-directional axial load; The loose rib of both sides thickening is the location to bearing inner sleeve on the one hand, is to increase the ability that bearing bears bi-directional axial load on the other hand; Rolling element is a cylindrical roller, diameter phi=29.5mm, and long L=80mm increases the ability that bearing bears thrust load and radial load; The utility model adopts the processing of plain bearing steel to get final product.

Adopt before the utility model, change 16 cover bearings in 8 chassis wheels every month approximately, change each chassis wheel shaft commitments and need 2.5 hours, 2000 yuan on every cover bearing, the consumer device cost was 384000 yuan in 1 year, took 240 hours repair times; Now, change 4 cover bearings in 4 chassis wheels every month approximately, change each chassis wheel shaft commitments and need 1 hour, 2000 yuan on every cover bearing, the consumer device cost was 96000 yuan in 1 year, took 48 hours repair times.Compare now with in the past, saved 288000 yuan of equipment cost expenses, and saved 196 hours repair times in 1 year.400M ²Every day produced 10,000 tons in sintering deposit approximately by sintering machine, 50 yuan of sintering deposit net profits per ton, and the increase benefit was 4,000,000 yuan in 1 year.428.8 ten thousand yuan of total unification year create beneficial results.

The sintering plant 380M of Handan iron and steel group company ²After the bearing of circular cooler trolley wheel improved, effect was remarkable.Bearing prolongs one times working life, has saved a large amount of repair times and labour force; Eliminated the hidden danger that exists in plant maintenance, the maintenance, avoided the generation of substantial equipment accident, improved operating rate, create beneficial result was more than 420 ten thousand yuan in 1 year.

Protection domain of the present utility model is not limited to the above embodiments, and obviously, those skilled in the art can carry out various changes and distortion and not break away from scope and spirit of the present utility model the utility model.If these changes and distortion belong in the scope of the utility model claim and equivalent technologies thereof, intention then of the present utility model also comprises these changes and is out of shape interior.

Claims

1. a circular cooler trolley is taken turns and is used bearing, it is characterized in that: it comprises cylindrical rolling element (2), the rolling element two ends are respectively equipped with left loose rib (5) and right loose rib (4), the rolling element inboard is provided with bearing inner sleeve (3), the rolling element outside is provided with bearing outside (1), described bearing width greater than/or equal 120mm.