SU1560969A1 - Caster roller of sintering trolleys of agglomeration machine - Google Patents

Abstract

The invention relates to the metallurgical industry, in particular to the equipment of sintering and firing machines, can be used in similar equipment for the processing of raw materials in other industries. The aim of the invention is to increase the durability of the rollers of the sintering carts. The device consists of an axis 1, a roller 2 with a flange mounted on a tapered roller bearing 3, a sleeve 4 with grooves 5 for oil, a seal 6, a roller shoulder 7, an internal sleeve 8 with a shoulder 9, a clamping nut 10, stuffing seals 11, channels 12. Improving the durability of the rollers of the sintering carts is achieved due to the fact that the outer bearing is made in the form of two sleeves of metal fluoroplastic or iron graphite, one of which is made with a shoulder and pressed onto the axle, and the other is made with a groove for the matching sleeve. ki, seals and lubricant reserve and pressed into the roller. 1 il.

Description

 The invention relates to the metallurgical industry, in particular, to the equipment of sintering and sizing machines and can be used in similar equipment for the processing of raw materials in other industries.

The purpose of the invention is to increase the durability of the running rollers of sintering machines of agglomachines.

Figure 1 shows the running roller of sintering carts of the sintering machines, section.

The running ro / 1ik of the sintering nezalez | kek sinter machine consists of axis 1, for “. A carriage pressed into the body, jca 2 with a flange mounted on a phonetic roller bearing 3 and a sliding bearing bearing consisting of two sleeves 4 and 8. The outer sleeve ijca 4 with notches 5 for oil and sealing 6 is pressed into the roller against the stop in its collar 7. The inner sleeve is pressed onto the axle and the collar 9 and the clamping nut 10 holds the bearings in the working position, closed with gland seals

II and 6 reference node. The lubricant is fed through the channels 12.

The running roller of the sintering carts of sintering trucks works as follows.

During the movement of the sintering trolley, the roller 2, mounted on axis 1, rests on a tapered roller bearing 3, located on the side of the trolley body, and on a sliding bearing consisting of sleeves 4 and 8, located on the outside. When re-moving a moving joint and the appearance of axial forces, the roller bearing 3 bears them, causing a support reaction on the collar 9 of the sleeve 8, which is supported on the clamping nut 10. The roller assembly, intermittently 5

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five

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five

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five

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When the transmission oil is filled with oil through channels 12 into recess 5, it is sealed with gland seals 11 and 6 that are closed on both sides.

Technical and economic effects - the use of the proposed roller (as compared to the basic prototype object) is that due to the presence of a wear-resistant sliding bearing in the form of two sleeves, which takes on axial and radial loads with a reduced 2-3 times (as compared with rolling bearing) specific pressure per unit area of friction, eliminates distortions of rolling bodies and their slippage in a roller bearing. This reduces wear rate, ensures coaxial movement of the roller, its durable and reliable performance. The use of new high-wear, antifriction, self-lubricating materials (metal fluoroplastic, iron graphite) and improved lubrication, friction surfaces with a liquid high-viscosity and high-temperature oil with a low destruction rate under these conditions also reduces the wear rate. Liquid oil eliminates self-heating and acts as a cooler of the friction unit.

The roller assembly, which is closed on both sides with gland seals, does not need additional sealing, is well lubricated and cooled above with the indicated liquid oil, periodically pumped through channels made in the axles of the carriage. The channels are closed with a conventional stopper. This makes it possible to eliminate the now existing cap cover (forming a re-1 lubrication tank) attached to the roller with six screws and a spring-loaded valve in its center for the supply of plastic lubricant.

If there is a cap on the lid, it is not possible to control the dose of lubricant for the roller, therefore when lubricating it is filled to failure (in such a large amount), which increases the flow rate by 3-4 times compared to the proposed one. This reduces the efficiency of using lubricant from - due to its self-heating, fast distruction from high internal and external temperatures and clogging. In addition, lubrication of the inner roller bearing is made difficult due to the difficulty of penetration of the grease supplied through the valve and the outer roller bearing to it, which accelerates its wear and destruction.

-Frequently (as shown by the practice of sintering shops), after wear and destruction of roller bearing cages, their rollers break and fall out. At the same time, the roller with the flange is not fixed in its place, it freely slips off - from the axis and falls, vy60969

causing seizure (accident) of the entire agglomeration and danger to the staff.

The proposed roller is held together even if the roller bearing is completely worn.

Claims (1)

Formula inventive ie n and The trailer roller of sintering carts for sintering trucks containing a roller with a flange, an axis, inner and outer tapered roller bearings, a seal, a clamping nut, characterized in that, in order to increase the durability of the running rollers of the sintering carts metal fluoroplastic and iron graphite, one of which is made with a collar and pressed onto the axis, and the other is made with a recess for the mating bushing, sealing and reserve grease and pressed into the roller.