CN220612239U - Flexible dummy bar supporting device of billet continuous casting machine - Google Patents
Flexible dummy bar supporting device of billet continuous casting machine Download PDFInfo
- Publication number
- CN220612239U CN220612239U CN202322232241.6U CN202322232241U CN220612239U CN 220612239 U CN220612239 U CN 220612239U CN 202322232241 U CN202322232241 U CN 202322232241U CN 220612239 U CN220612239 U CN 220612239U
- Authority
- CN
- China
- Prior art keywords
- dummy bar
- bearing
- shaft sleeve
- rotatable shaft
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000009749 continuous casting Methods 0.000 title claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 15
- 210000004907 gland Anatomy 0.000 claims abstract description 8
- 238000005461 lubrication Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model discloses a flexible dummy bar supporting device of a square billet continuous casting machine, which relates to the field of steel binding machinery and comprises a support, a penetrating cover, a rotatable shaft sleeve, a shaft, a bearing, a gland and a sealing ring, wherein the shaft is arranged in the bearing in a penetrating way, the bearing is arranged in the rotatable shaft sleeve, the penetrating cover is arranged at two ends of the rotatable shaft sleeve, the penetrating cover end heads are abutted with the bearing, the sealing ring is arranged between the rotatable shaft sleeve and the penetrating cover, the two ends of the shaft are arranged on the support and are covered by the gland, and the gland is fixedly connected with the support through bolts. The utility model can solve the problems that the existing arc bracket for supporting the flexible dummy bar between the square billet secondary cooling guide section guide rollers is non-rotatable, the hinge gap between the dummy bar and the dummy bar is easy to be blocked at the arc position of the bracket, the resistance of the withdrawal and straightening machine is large and the trip is caused, the dummy bar feeding time is long, the arc bracket is fast in wear, the labor intensity of maintenance personnel is increased, and the like.
Description
Technical Field
The utility model relates to the technical field of steel manufacturing, in particular to a supporting device for supporting a secondary cooling guide section of a flexible dummy bar of a billet continuous casting machine.
Background
The square billet continuous casting machine dummy bar mostly adopts a rigid dummy bar, while some steel plants adopt a flexible dummy bar on the side of the square billet machine, and due to the characteristics of the flexible dummy bar, a certain amount of arc brackets are required to be arranged between the guide rollers of the second cold guide section of the square billet, so that the auxiliary support and the function of limiting the excessive swing of the dummy bar head are realized. The arc bracket adopted originally is non-rotatable and easy to wear, so that the following problems often occur in production practice:
1. when the ingot head is pulled to a withdrawal and straightening machine, a withdrawal and straightening roller is easy to clamp in the gap between the ingot head and the ingot head, so that the top ingot is cut off.
2. When the production is ready for dummy ingot delivery, the arc bracket is not rotatable, and the problems that the hinge gap between the dummy ingot head and the dummy ingot rod is clamped at the arc position of the bracket, so that the resistance of the tension leveler is large and the dummy ingot delivery takes time and the like are easily caused.
3. The arc bracket is worn quickly, and the labor intensity of maintenance personnel is increased.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a flexible dummy bar supporting device of a billet continuous casting machine, which can solve the problems that the existing arc bracket for supporting the flexible dummy bar between two cold guide section guide rollers of a billet is non-rotatable, the hinge gap between a dummy head and the dummy bar is easy to be blocked at the arc position of the bracket, so that the resistance of a withdrawal and straightening machine is large and the withdrawal and straightening machine trips, the time for feeding the dummy bar is long, the abrasion of the arc bracket is quick, the labor intensity of maintenance personnel is increased and the like.
In order to solve the problems, the technical scheme of the utility model is as follows: the flexible dummy bar supporting device of the billet continuous casting machine comprises a support, a penetrating cover, a rotatable shaft sleeve, a shaft, a bearing, a gland and a sealing ring;
the shaft is installed in the bearing in a penetrating manner, the bearing is installed in the rotatable shaft sleeve, the penetrating covers are arranged at two ends of the rotatable shaft sleeve, the penetrating cover ends are abutted to the bearing, the sealing rings are arranged between the rotatable shaft sleeve and the penetrating covers, the two ends of the shaft are installed on the support and covered by the pressing cover, and the pressing cover is fixedly connected with the support through bolts.
Among the above technical schemes, the more specific scheme is: the center of the shaft is provided with a lubrication pipeline communicated with the bearing seat.
Further: the sealing ring is a Y-shaped sealing ring.
Further: the length of the support is 280mm, and the width of the support is 120mm; the diameter of the rotatable shaft sleeve is phi 140mm, and the length of the rotatable shaft sleeve is 140mm.
Further: the support is fixed on a square billet secondary cooling fixed section frame for supporting the flexible dummy bar through a connecting screw.
Further: the supporting roller surface of the rotatable shaft sleeve is 5mm lower than the guiding roller surface.
By adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects:
1. the supporting device is rotatable, and can play a role in supporting and limiting swinging when the dummy bar head swings downwards at the hinge position, and can reduce friction resistance; the current interruption in the starting process is avoided, and the casting blank quality and the production smoothness are ensured.
2. After the utility model is used, the production preparation dummy ingot can be successfully delivered from the original part for 2-3 times, the current delivery of the dummy ingot for 1 time is reduced, the production preparation efficiency is improved, and the labor intensity of operators is reduced.
3. According to the utility model, the bearing seat of the supporting device is provided with the centralized lubrication pipeline, so that the friction resistance of the roller surface is small, the service life is long, and the maintenance strength of a maintenance fitter is reduced.
Drawings
FIG. 1 is a schematic front view of the present utility model;
FIG. 2 is a schematic left-hand view of the present utility model;
fig. 3 is a schematic view of the installation position of the present utility model.
The reference numerals in the figures are: 1-support, 2-through cover, 3-rotatable axle sleeve, 4-axle, 5-bearing, 6-gland, 7-sealing washer, 8-bolt, 9-two cold fixed section frame, 10-connecting screw, 11-bottom plate.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
the flexible dummy bar supporting device of the billet continuous casting machine of fig. 1 and 2 comprises a supporting device consisting of a support 1, a penetrating cover 2, a rotatable shaft sleeve 3, a shaft 4, a bearing 5, a gland 6, a sealing ring 7 and a bolt 8.
The shaft 4 is arranged in the bearing 5 in a penetrating way, the bearing 5 is arranged in the rotatable shaft sleeve 3, the two ends of the rotatable shaft sleeve 3 are provided with transparent covers 2, the ends of the transparent covers 2 are abutted with the bearing 5, a sealing ring 7 is arranged between the rotatable shaft sleeve 3 and the transparent covers 2, and the sealing ring 7 is a Y-shaped sealing ring; the two ends of the shaft 4 are arranged on the support 1 and covered by the gland 6, and the gland 6 is fixedly connected with the support 1 through bolts 8. The center of the shaft 4 is provided with a lubrication pipeline which is communicated with the bearing seat, and the bearing seat is provided with a centralized lubrication pipeline, so that the roller surface is lubricated, and the friction resistance is reduced.
The length of the support 1 is 280mm, and the width is 120mm; the rotatable sleeve 3 has a diameter phi 140mm and a length 140mm, the remaining dimensions being shown in detail in figures 1 and 2.
As shown in fig. 3, the construction process of the present utility model is used: the method comprises the steps of (1) carrying out oxygen cutting on 70mmx150mm mounting openings on two side plates of a square billet secondary cooling fixed section frame 9 on a support flexible dummy bar, welding a bottom plate 11 which is simply manufactured, and fixing a support 1 on a fixed section through a connecting screw 10, namely fixing the utility model on the fixed section, and adjusting a supporting surface to enable the roller surface to be lower than a guide roller by 5mm; meanwhile, the bearing seats on the two sides are provided with the lubrication pipelines, 4 lubrication pipelines of the two supporting devices are concentrated to a quantitative oil feeder of an outlet, manual oil lubrication is concentrated, and the service life is prolonged.
Claims (6)
1. A flexible dummy bar supporting device of a billet continuous casting machine is characterized in that: comprises a support (1), a transparent cover (2), a rotatable shaft sleeve (3), a shaft (4), a bearing (5), a gland (6) and a sealing ring (7);
the novel bearing comprises a bearing (5), wherein a shaft (4) is arranged in the bearing (5) in a penetrating way, the bearing (5) is arranged in a rotatable shaft sleeve (3), two ends of the rotatable shaft sleeve (3) are provided with a penetrating cover (2), the end of the penetrating cover (2) is abutted to the bearing (5), a sealing ring (7) is arranged between the rotatable shaft sleeve (3) and the penetrating cover (2), two ends of the shaft (4) are arranged on a support (1) and are covered by a pressing cover (6), and the pressing cover (6) is fixedly connected with the support (1) through bolts (8).
2. The flexible dummy bar support device of a billet caster according to claim 1, wherein: the center of the shaft (4) is provided with a lubrication pipeline communicated with the bearing seat.
3. The flexible dummy bar support device of a billet caster according to claim 1 or 2, characterized in that: the sealing ring (7) is a Y-shaped sealing ring.
4. A billet caster flexible dummy bar support device according to claim 3, wherein: the length of the support (1) is 280mm, and the width of the support is 120mm; the diameter of the rotatable shaft sleeve (3) is phi 140mm, and the length of the rotatable shaft sleeve is 140mm.
5. The flexible dummy bar support device of a billet caster according to claim 1, wherein: the support (1) is fixed on a square billet secondary cold fixing section frame (9) for supporting the flexible dummy bar through a connecting screw (10).
6. The flexible dummy bar support device of a billet caster of claim 5, wherein: the supporting roller surface of the rotatable shaft sleeve (3) is 5mm lower than the guiding roller surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322232241.6U CN220612239U (en) | 2023-08-18 | 2023-08-18 | Flexible dummy bar supporting device of billet continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322232241.6U CN220612239U (en) | 2023-08-18 | 2023-08-18 | Flexible dummy bar supporting device of billet continuous casting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220612239U true CN220612239U (en) | 2024-03-19 |
Family
ID=90223418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322232241.6U Active CN220612239U (en) | 2023-08-18 | 2023-08-18 | Flexible dummy bar supporting device of billet continuous casting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220612239U (en) |
-
2023
- 2023-08-18 CN CN202322232241.6U patent/CN220612239U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |