RU2033302C1 - Roller for metal continuous casting plants - Google Patents

Abstract

FIELD: metal continuous casting plants. SUBSTANCE: roller has annular plate-type springs, arranged between bearing assemblies, limiters and rests of a barrel of the roller. A convex portion of the springs is turned to an opposite side from the barrel. The springs have edges, forced to races of the bearing assemblies. That prevents water penetration into the bearing assemblies and provides increased service life of the bearings and the whole roller. EFFECT: increased service period of rollers. 1 cl, 1 dwg

Description

 The invention relates to metallurgy, and more particularly to installations for continuous casting of metals.

 A known roller for installations of continuous casting of metals, including a barrel of a roller, an axis of a roller, thrust bearings with stops and stops in a barrel of movement, seals. A through hole is made along the axis of the roller, and the barrel of the roller is mounted on the axis without a gap. The barrel and the roller axis are divided into several parts and rely on the corresponding bearings. The limiters of the longitudinal movement of the bearings are made of flat ring plates. The individual parts of the axis are interconnected by means of an insert with a through hole. During casting, cooling water is passed through the through hole.

 A disadvantage of the known roller is its low resistance. This is because the limiters of movement of the bearings are made of flat annular plates. Under these conditions, cooling water entering through the seals gets into the bearings, which leads to their failure. Flat stoppers in this case cannot serve as a seal and prevent the ingress of cooling water into the bearings.

 The closest in technical essence is a roller for continuous metal casting plants, including a roller barrel, roller axis, pillow block bearings with stops and stops in the barrel for their longitudinal movement, as well as seals. A through channel is made along the axis of the roller, and the barrel of the roller is mounted on the axis with a gap. The barrel and the roller axis are divided into several parts and rely on the corresponding bearings. The limiters of the longitudinal movement of the bearings are made in the form of flat rings. During the casting process, cooling water is passed through the through channel. Grease is supplied to each bearing through the nozzles.

 A disadvantage of the known roller is its low durability. This is because the limiters of longitudinal movement and fixing the position of the bearing relative to the barrel and axis are made in the form of flat rings and stops. Under these conditions, cooling water, penetrating from the gap through the seals, enters the bearings, which leads to leaching of the grease from them and, as a result, to the failure of the bearings. Flat rings and stops in this case cannot serve as a seal and prevent water from entering the bearings.

 The technical effect when using the invention is to increase the durability of the rollers.

 The specified technical effect is achieved by the fact that the roller for continuous metal casting plants includes a barrel mounted on an axis with a gap, consisting of several parts, an axis with a through channel, thrust bearings, stops and stops in the barrel for fixing the longitudinal movement of the bearings, as well as seals.

 The roller is additionally equipped with convex annular cup springs installed between bearings, stops and stops in the barrel, while the convex part of the cross section of the spring ring is oriented away from the bearing.

 The increase in the resistance of the rollers will occur due to the elimination of water from the gap in the bearings. This will be achieved due to the spring properties of the Belleville spring. Under these conditions, the edges of the convex section of the spring ring will be pressed against the bearing rings and thereby create seals to prevent water from accessing the rolling elements of the bearings.

 The analysis of scientific and technical literature shows the lack of coincidence of the distinctive features of the claimed video with the signs of known technical solutions. Based on this, it is concluded that the claimed technical solution meets the criterion of "inventive step".

 The following is an embodiment of the invention that does not exclude other variations within the scope of the claims.

 The drawing shows a longitudinal section of a roller for installations of continuous casting of metals.

 The roller for continuous casting plants consists of the components of the barrel 1 and axis 2, insert 3, the through channel 4, holes 5, bearings 6, seals 7, nozzles 8, housings 9, frame 10, stops 11, clearance 12, cup spring 13 , stops 14.

 A roller for continuous metal casting works as follows.

 PRI me R. In the process of continuous casting, pipes 8 are supplied with cooling water under pressure, flowing further through the through channel 4, holes 5, gap 12. Water is supplied from one end of the roller, and flows from the other, as shown by arrows in the drawing. The parts of the axis 2 of the roller are connected by a rope 3 to the internal channel 4 for the flow of water from one part of the axis to another.

 Barrel 1 of the roller consists of two parts and is supported by rolling bearings 6 mounted on parts of the composite axis 2. Bearings 6 are installed in housings 9 mounted on the frame 10. To seal the gap 12, seals are provided 7. Parts of the axis 2 are mounted in bearings 6 having restriction and fixation in its longitudinal movement with the help of stops 11 and stops 14 in the barrel.

 The barrel of the roller is mounted on the axis 2 with a gap 12, while in the body of the axis 2 of the roller there are through holes 5 transverse to the axis 2 of the roller of the direction connecting the gap 12 and the inner channel 4 in the axis 2 of the roller and located at the edges of the components of the axis 2 of the roller.

 The roller is additionally equipped with convex annular cup springs 13 installed between the bearings 6, stops 11 and stops 14 in the barrel 1. The convex part of the cross section of the spring ring 13 is oriented in the direction from the bearing 6.

 With this design of the roller, the edges of the convex section of the disk spring ring 13 will be pressed against the bearing rings 6, which will create additional seals for water penetrating from the gap 12 through the seals 7. Under these conditions, the lubrication of the bearings 6 will not spill out, which will ensure a longer operation of the roller . The springs 13 may be made of steel or other elastic materials.

 In the General case, the number of components of the barrel 1 and the axis can be more than two. The lubrication of the bodies of rotation of the bearings 6 can be both embedded and centralized flow.

 The use of the proposed roller allows to increase their durability by 2.8%, which ensures an increase in the productivity of continuous metal casting plants by 0.7%. The economic effect is calculated in comparison with the base object, which is used as a roller used in continuous metal casting plants of the Cherepovets Metallurgical Plant.

Claims (1)

 ROLLER FOR INSTALLATIONS OF CONTINUOUS METAL CASTING, containing a barrel mounted with a clearance on the axis and consisting of several parts, an axis with a through channel, thrust bearings, stops, stops in the barrel for fixing the longitudinal movement of bearings and seals, characterized in that it is additionally equipped with ring convex cup springs installed between the bearings, stops and stops in the barrel, while the convex part of the cross section of the spring ring is directed away from the bearings.

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