CN210412454U

CN210412454U - Foot roller device for chamfering crystallizer

Info

Publication number: CN210412454U
Application number: CN201921586414.1U
Authority: CN
Inventors: 陈佳; 张勇; 王川; 周胜中; 郑强仁
Original assignee: Chongqing Iron and Steel Group Co Ltd
Current assignee: Chongqing Iron and Steel Group Sanfeng Industry Co., Ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-04-28
Anticipated expiration: 2029-09-23

Abstract

The utility model discloses a chamfering foot roller device of a crystallizer, which comprises a shaft and a chamfering foot roller; it is characterized in that the supporting frames connected with the two bearing seats are formed into a whole; the bearing is characterized in that a plurality of oil holes are formed in the middle of an outer ring of the bearing around the circumference of the outer ring, an annular groove which surrounds the bearing seat for a circle is formed in the inner side of the bearing seat and corresponds to the oil holes, and the oil holes are communicated with the annular groove; a through hole is respectively arranged on the two support frames, and the inner end of the through hole penetrates through the bearing seat and then is communicated with the annular groove; the oil supply device also comprises a U-shaped oil supply pipe, wherein two ends of the open end of the U-shaped oil supply pipe are respectively connected with the outer ends of the through holes on the two support frames, and the closed end of the U-shaped oil supply pipe is provided with an oil inlet. The utility model discloses a support frame plays double bracing and connection effect to the bearing frame, avoids taking place the dislocation card dead, still supplies the oil pipe to play the lubrication action to the bearing through the U type.

Description

Foot roller device for chamfering crystallizer

Technical Field

The utility model relates to a continuous casting technique, concretely relates to sufficient roller device of crystallizer chamfer.

Background

High-temperature molten steel is continuously poured into one or a group of water-cooled copper crystallizers, the molten steel is gradually solidified into blank shells along the peripheries of the crystallizers, after the liquid level of the molten steel rises to a certain height, the blank shells are solidified to a certain thickness, a withdrawal and straightening machine pulls out blanks, the blanks are completely solidified through water spraying cooling in a secondary cooling area, and the blanks are cut into fixed sizes by a cutting device according to steel rolling requirements. This process of directly casting high temperature molten steel into steel billets is known as continuous casting. Among them, the crystallizer is the core equipment of continuous casting production, and the equipment performance parameters directly determine the quality of a casting blank.

In the prior art, the foot roller is supported by two mutually independent bearing seats on the chamfer foot roller of the crystallizer, axial movement easily occurs to the two bearing seats in the production process, so that the dislocation phenomenon occurs between the two bearing seats in the casting process, and the spindle is clamped to lead to the foot roller not to rotate.

SUMMERY OF THE UTILITY MODEL

The aforesaid that exists to prior art is not enough, the utility model discloses a how avoid the bearing frame to take place the dislocation to and solve the lubricated problem of bearing. The utility model provides a sufficient roller device of crystallizer chamfer can avoid two bearing frames to take place axial displacement in process of production through the device, plays fine lubrication action to the bearing simultaneously.

The technical scheme adopted by the invention is as follows:

a chamfering foot roller device of a crystallizer comprises a shaft and chamfering foot rollers arranged at two ends of the shaft, wherein a middle roller is also arranged in the middle of the shaft and is connected with the shaft through a key; a bearing seat, a bearing and a shaft sleeve are arranged between the chamfering foot roller and the middle roller, the bearing seat, the bearing and the shaft sleeve are all sleeved on the shaft, wherein the bearing is arranged in the bearing seat, the shaft sleeve is positioned between the bearing and the chamfering foot roller, and one side of the bearing seat is connected with a support frame; it is characterized in that the supporting frames connected with the two bearing seats are formed into a whole; the bearing is characterized in that a plurality of oil holes are formed in the middle of an outer ring of the bearing around the circumference of the outer ring, an annular groove which surrounds the bearing seat for a circle is formed in the inner side of the bearing seat and corresponds to the oil holes, and the oil holes are communicated with the annular groove; a through hole is respectively arranged on the two support frames, and the inner end of the through hole penetrates through the bearing seat and then is communicated with the annular groove; the oil supply device also comprises a U-shaped oil supply pipe, wherein two ends of the open end of the U-shaped oil supply pipe are respectively connected with the outer ends of the through holes on the two support frames, and the closed end of the U-shaped oil supply pipe is provided with an oil inlet.

The utility model discloses at first couple together two original independent bearing frames through the fashioned support frame of an integration, support bearing frame and axle through the support frame to avoid the bearing frame to take place to follow axial removal, also guaranteed the uniformity in the axle center of bearing frame and axle. Secondly, the utility model discloses be equipped with the oilhole on the well bearing, the oilhole corresponds and is linked together with the ring channel on the bearing frame, simultaneously, supplies oil union coupling through support frame and U type, and the tip of two support arms of U type confession oil pipe links to each other with the through-hole outer end on two support frames respectively, makes the oilhole on U type confession oil pipe and the bearing be linked together. In the use process, an oil inlet on the U-shaped oil supply pipe is connected with an external lubricating oil conveying pipeline, lubricating oil enters the annular groove on the bearing seat after passing through the U-shaped oil supply pipe and the through hole on the supporting frame, and the bearing is lubricated through the oil hole communicated with the annular groove, so that the bearing is lubricated in time.

Furthermore, one side of the chamfer foot roller, which faces the middle roller, is provided with a first groove, one side of the bearing seat and the shaft sleeve extend into the first groove and are attached to the bottom of the first groove, and the outer side of the bearing seat is attached to the wall of the first groove. The chamfer foot roller is towards one side of middle roller, and the inboard of chamfer foot roller is equipped with first recess promptly, closely laminates with the axle sleeve in bearing frame and the bearing frame in the first recess, has played fine sealed effect.

Furthermore, a counter bore is formed in one side, away from the bearing seat, of the support frame and corresponding to the annular groove, the through hole is formed in the bottom of the counter bore, a disc spring is arranged in the counter bore, and the disc spring is sleeved on the U-shaped oil supply pipe. Two ends of the upper open end of the U-shaped oil supply pipe respectively extend into the counter bores and are communicated with the through holes at the bottoms of the counter bores in a contact manner. And the outside cover that the U type fuel feeding pipe stretched into this part of counter bore is equipped with a plurality of belleville springs, and whole device is finally fixed on the thick frame of blank of crystallizer, can bear the advantage of heavy load with little deformation through belleville spring, plays the cushioning effect to whole device vertical direction, warp the back bearing the load simultaneously, deposits certain potential energy, and when the both ends of the open end appear laxing on the U type fuel feeding pipe, belleville spring can release partial potential energy in order to reach good sealed effect.

Furthermore, the chamfering foot roller is connected with the shaft through a key, a shaft hole at one end of the chamfering foot roller, which is far away from the middle roller, is enlarged to form a positioning hole, a stop block matched with the positioning hole is arranged in the positioning hole, and the stop block is connected with the shaft through an eccentric screw. The axial lead of the screw is not coincident with the axial lead of the shaft, and the chamfering foot roller is effectively fixed through the positioning hole in the chamfering foot roller and the stop block matched with the positioning hole, so that the chamfering foot roller cannot axially move when rotating, and is prevented from slipping off from the chamfering foot roller when rotating.

Further, the inner end aperture of the through hole is smaller than the outer end aperture of the through hole. The size of through-hole is crescent from the direction of inner end to outer end, and the oilhole is aimed at to the inner end of through-hole, can realize the accurate lubrication to the bearing.

Compared with the prior art, the utility model has the advantages of as follows:

1. the utility model firstly connects the original two independent bearing seats through an integrated support frame, and supports the bearing seats and the shaft through the support frame, thereby avoiding the axial movement of the bearing seats and ensuring the consistency of the axle centers of the bearing seats and the shaft; meanwhile, the support strength of the support frame to the two bearing seats is kept, the concentricity of the chamfering foot roller and the shaft is improved, the stable support of the support frame to the chamfering foot roller structure is ensured, and the phenomenon of locking of the chamfering foot roller and the shaft in the casting process is effectively prevented.

2. The middle bearing of the utility model is provided with oil holes and is connected with the U-shaped oil supply pipe through the support frame, and the end parts of the two support arms of the U-shaped oil supply pipe are respectively connected with the outer ends of the through holes on the two support frames, so that the U-shaped oil supply pipe is communicated with the oil holes on the bearing; in the use, utilize the oil inlet on the U type oil feed pipe to be connected with outside lubricating oil pipeline, can continuously lubricate the bearing as required.

Drawings

Fig. 1 is a schematic structural view of a foot roller device for chamfering a crystallizer according to the present invention.

Fig. 2 is a schematic structural view of the middle bearing seat and the supporting frame of the present invention.

In the figure: the device comprises a shaft 1, a chamfer foot roller 2, a first groove 21, a stop 22, an intermediate roller 3, a bearing seat 4, an annular groove 41, a bearing 5, an oil hole 51, a shaft sleeve 6, a support frame 7, a through hole 71, a counter bore 72, a U-shaped oil supply pipe 8 and an oil inlet 81.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example (b): referring to fig. 1 and 2, the chamfering foot roller device for the crystallizer comprises a shaft 1 and chamfering foot rollers 2 arranged at two ends of the shaft, wherein a middle roller 3 is further arranged in the middle of the shaft 1, and the middle roller 3 is connected with the shaft 1 through a key; a bearing seat 4, a bearing 5 and a shaft sleeve 6 are arranged between the chamfer foot roller 2 and the middle roller 3, the bearing seat 4, the bearing 5 and the shaft sleeve 6 are all sleeved on the shaft 1, wherein the bearing 5 is arranged in the bearing seat 4, the shaft sleeve 6 is positioned between the bearing 5 and the chamfer foot roller 2, and one side of the bearing seat 4 is connected with a support frame 7; the supporting frames 7 connected with the two bearing seats 4 are formed into a whole; a plurality of oil holes 51 are formed in the middle of the outer ring of the bearing 5 around the circumference thereof, an annular groove 41 is formed in the inner side of the bearing seat 4 at a position corresponding to the oil holes 51 around the bearing seat 4, and the oil holes 51 are communicated with the annular groove 41; a through hole 71 is respectively arranged on the two support frames 7, and the inner end of the through hole 71 penetrates through the bearing seat 4 and then is communicated with the annular groove 41; the oil filter is characterized by further comprising a U-shaped oil supply pipe 8, two ends of the open end of the U-shaped oil supply pipe 8 are respectively connected with the outer ends of the through holes 71 on the two support frames 7, and the closed end of the U-shaped oil supply pipe 8 is provided with an oil inlet 81. The supporting frame 7 is integrally formed, and two mutually independent bearing seats 4 in the prior art are connected together to form an integrally formed structure. Support bearing frame 4 and axle 1 through support frame 7, simultaneously the utility model provides a support frame 7 can avoid two independent and bearing frame 4 of separating among the prior art to follow axle 1 easily in the production process and to removing to lead to axle 1 and the dead problem of the sufficient roller 2 card of chamfer. Furthermore, the utility model discloses fine lubrication action has, in the use, oil inlet 81 on the 8 blind ends of oil supply pipe is connected with outside lubricating oil pipeline through the U type, lubricating oil gets into in the U type oil supply pipe 8 from oil inlet 81, and in through-hole entering ring channel 41 on bearing frame 4 on support frame 7 along the U type oil supply pipe 8, get into axle 1 and bearing frame 4 along the communicating oilhole 51 with ring channel 41 at last, between bearing 5 and the axle sleeve 6, play fine lubrication action, and lubricating oil can be continuous supplyes, need not carry out the replenishment of lubricating oil like prior art to some junctions.

In specific implementation, a first groove 21 is formed in one side, facing the middle roller 3, of the chamfer foot roller 2, one side of the bearing seat 4 and one side of the shaft sleeve 6 extend into the first groove 21 and are attached to the bottom of the first groove 21, and the outer side of the bearing seat 4 is attached to the wall of the first groove 21. The chamfer foot roller 2 faces one side of the middle roller 3, namely the inner side of the chamfer foot roller 2 is provided with a first groove 21, the first groove 21 is tightly attached to the bearing block 4 and the shaft sleeve 6 in the bearing block 4, a good sealing effect is achieved, and the leakage of lubricating oil is avoided. One side of the support frame 7 departing from the bearing seat 4 and corresponding to the position of the annular groove 41 are provided with a counter bore 72, the through hole 71 is formed in the bottom of the counter bore 72, a disc spring is arranged in the counter bore 72, and the disc spring is sleeved on the U-shaped oil supply pipe 8. The two ends of the upper open end of the U-shaped oil supply pipe 8 respectively extend into the counter bores 72 and are in contact communication with the through holes 71 at the bottoms of the counter bores 72. And the outside cover that this part that U type fuel feeding pipe 8 stretched into in the counter bore 72 is equipped with a plurality of belleville springs, and whole device is finally fixed on the thick frame of blank of crystallizer, can bear the advantage of heavy load with little deformation through belleville spring, to playing the cushioning effect in the vertical direction of whole device, is bearing the load deformation back simultaneously, deposits certain potential energy, and when the both ends of opening end appear lax on U type fuel feeding pipe 8, belleville spring can release partial potential energy in order to reach good sealed effect.

The chamfering foot roller 2 is connected with the shaft 1 through a key, a shaft hole at one end, far away from the middle roller 3, of the chamfering foot roller 2 is enlarged to form a positioning hole, a stop block 22 matched with the positioning hole is arranged in the positioning hole, and the stop block 22 is connected with the shaft 1 through an eccentric screw. The axial lead of the screw is not coincident with the axial lead of the shaft 1. Through the positioning hole on the chamfering foot roller 2 and the stop block 22 matched with the positioning hole, the chamfering foot roller 2 is effectively fixed, so that the chamfering foot roller 2 cannot axially move when rotating, and the slipping from the chamfering foot roller 2 is avoided when rotating. The inner end aperture of the through hole 71 is smaller than the outer end aperture of the through hole 71. The size of through-hole 71 increases gradually from the direction of the inner end to the outer end, and the inner end of through-hole 71 aims at oilhole 51, can realize the accurate lubrication to bearing 5.

The present invention is not limited to the above embodiments, and the same or similar structures as those of the above embodiments of the present invention are all within the protection scope of the present invention.

The working process is as follows: in the using process, the oil inlet 81 on the closed end of the U-shaped oil supply pipe 8 is connected with an external lubricating oil conveying pipeline, lubricating oil is pumped into the U-shaped oil supply pipe 8 from the oil inlet 81, enters the annular groove 41 on the bearing seat 4 through the through hole 71 on the supporting frame 7 along the U-shaped oil supply pipe 8, and finally enters between the shaft 1 and the bearing seat 4, the bearing 5 and the shaft sleeve 6 along the oil hole 51 communicated with the annular groove 41, so that a good lubricating effect is achieved.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.

Claims

1. A chamfering foot roller device of a crystallizer comprises a shaft (1) and chamfering foot rollers (2) arranged at two ends of the shaft, wherein a middle roller (3) is also arranged in the middle of the shaft (1), and the middle roller (3) is connected with the shaft (1) through a key; a bearing seat (4), a bearing (5) and a shaft sleeve (6) are arranged between the chamfering foot roller (2) and the middle roller (3), the bearing seat (4), the bearing (5) and the shaft sleeve (6) are all sleeved on the shaft (1), wherein the bearing (5) is installed in the bearing seat (4), the shaft sleeve (6) is located between the bearing (5) and the chamfering foot roller (2), and one side of the bearing seat (4) is connected with a support frame (7); it is characterized in that the supporting frames (7) connected with the two bearing seats (4) are formed into a whole; a plurality of oil holes (51) are formed in the middle of the outer ring of the bearing (5) around the circumference of the outer ring, an annular groove (41) which surrounds the bearing seat (4) for one circle is formed in the inner side of the bearing seat (4) corresponding to the position of the oil holes (51), and the oil holes (51) are communicated with the annular groove (41); a through hole (71) is respectively arranged on the two supporting frames (7), and the inner end of the through hole (71) penetrates through the bearing seat (4) and then is communicated with the annular groove (41);

the oil filter is characterized by further comprising a U-shaped oil supply pipe (8), two ends of the open end of the U-shaped oil supply pipe (8) are respectively connected with the outer ends of the through holes (71) in the two support frames (7), and the closed end of the U-shaped oil supply pipe (8) is provided with an oil inlet (81).

2. The crystallizer chamfer foot roller device according to claim 1, characterized in that the chamfer foot roller (2) is provided with a first groove (21) on the side facing the middle roller (3), the bearing seat (4) and one side of the shaft sleeve (6) extend into the first groove (21) and are attached to the bottom of the first groove (21), and the outer side of the bearing seat (4) is attached to the wall of the first groove (21).

3. The crystallizer chamfer foot roller device according to claim 1, wherein a counter bore (72) is arranged at a position corresponding to the annular groove (41) on one side of the support frame (7) away from the bearing seat (4), the through hole (71) is arranged at the bottom of the counter bore (72), a disc spring is arranged in the counter bore (72), and the disc spring is sleeved on the U-shaped oil supply pipe (8).

4. The crystallizer chamfer foot roller device according to claim 1, characterized in that the chamfer foot roller (2) is connected with the shaft (1) through a key, the shaft hole of one end of the chamfer foot roller (2) far away from the middle roller (3) is enlarged to form a positioning hole, a stop block (22) matched with the positioning hole is arranged in the positioning hole, and the stop block (22) is connected with the shaft (1) through an eccentric screw.

5. The crystallizer chamfer foot roller device according to claim 1, wherein the inner end aperture of the through hole (71) is smaller than the outer end aperture of the through hole (71).