CN201648441U - Ball-jointed suspending plate type device for connecting backing ring and furnace shell of revolving furnace - Google Patents
Ball-jointed suspending plate type device for connecting backing ring and furnace shell of revolving furnace Download PDFInfo
- Publication number
- CN201648441U CN201648441U CN2010201466839U CN201020146683U CN201648441U CN 201648441 U CN201648441 U CN 201648441U CN 2010201466839 U CN2010201466839 U CN 2010201466839U CN 201020146683 U CN201020146683 U CN 201020146683U CN 201648441 U CN201648441 U CN 201648441U
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- furnace shell
- ring
- connector element
- ball
- coupling device
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Abstract
The utility model relates to a device for connecting a backing ring and a furnace shell of a revolving furnace. The device is characterized by comprising three to four connecting elements; each connecting element comprises a lug, supporting shafts, sliding sleeves, support rings and ball-jointed bearings, wherein the lug is fixedly connected with the backing ring; sliding sleeve through holes are formed on the lug; the sliding sleeves are positioned in the sliding sleeve through holes and are fixedly connected with the lug; the outer end parts of the supporting shafts extend into the sliding sleeves; the inner end parts of the supporting shaft are fixedly connected with the inner rings of the ball-jointed bearings; the outer rings of the ball-jointed bearings are fixedly connected with the support rings; and the support rings are fixedly connected with the furnace shell. The utility model has the characteristics of simple structure, high reliability and free maintenance, and avoids additional stress caused by revolving furnace in operation.
Description
Technical field
The utility model relates to the coupling device of a kind of converter trunnion ring and furnace shell.This device is applied to the converter steelmaking equipment technical field, or the process requirements of other similar smelting furnace.
Background technology
The coupling device of converter shell and backing ring is the vitals of converter installation, could drive furnace shell by its backing ring and rotate charging, sampling, the thermometric finished in the steelmaking process, slags tap and operation such as tapping.So coupling device should be able to guarantee converter and fascinate during the position any, the furnace shell load can both be delivered to above the backing ring, and the tram of maintenance furnace shell in backing ring, can adapt to simultaneously furnace shell expands, contracts at axial and radial, do not rock and do not produce, and furnace shell load is evenly distributed on the backing ring, the intensity of furnace shell and the influence of distortion are reduced to bottom line.When furnace shell and backing ring distortion, in coupling device, also may cause the redistribution of load, cause local overload, coupling device is also wanted to avoid this deformation and failure.Coupling device also should be convenient to install, processing, has high reliability, maintainability and security.In the evolution of steelmaking equipment, the international and domestic coupling device of having developed a lot of furnace shells and backing ring.The three penalty kick reamer bolt coupling devices of on mammoth conveter, using always at present that Japan's exploitation is arranged, VAI ball pivot two power bar VAI-CON LINK coupling devices, SMS-Demag spring strip coupling device etc.
1, three penalty kick reamer bolt coupling devices: the web member of three penalty kick reamer bolt coupling devices of Japan is arranged in the backing ring top, the self-regulated bolt of the dribbling face of employing packing ring links together furnace shell and backing ring, three bolts are 120 degree and arrange that the vertical weight of furnace shell is supported by three points on circumference.On the top of backing ring three groups of clamps are arranged, four groups of clamps are arranged at the bottom.When displacement is expanded with heat and contract with cold in the furnace shell generation, self-regulated bolt itself tilts and also to transpose automatically by its spherical washer, and the furnace shell central position is remained unchanged, and seven groups of clamps are except that making the converter central position remains unchanged, when converter inclining arrives level attitude, also can pass to backing ring to the load of converter.The clamp structure of this coupling device, the situation that has the breathing of the relative backing ring of restriction furnace shell in the use, and ball pivot junction part is more, easily produces corrosion, produce when furnace shell is verted and rock, even ball pivot bolt fracture, spherical washer also take place by the accident of conquassation.In addition, be arranged in the layout of the ball pivot bolt connecting device on backing ring top, and raised the converter center of gravity, need balancing weight be set at furnace bottom during actual the use not only bad for the top skirtboard.
2, (patent No.: ZL93117357.4): this coupling device is the ball pivot two power bars that are provided with 3 vertical, 3 (or 2) levels between backing ring and furnace shell to VAI ball pivot two power bar VAI-CON LINK coupling devices, furnace shell and the backing ring mode with static determinacy (degree of freedom is 0) is connected in one, designing ingenious perfection, is the mode of connection that is most widely used at present.But because of the restriction of patent, domestic introduction cost is too high.In addition, the ball socket bearing that this coupling device uses is too many, and machined piece, matching requirements are also higher.
3, SMS-Demag spring strip coupling device: this coupling device is to be provided with 8 groups of spring strips in the bottom of furnace shell, with pattern and backing ring firm be connected in one of furnace shell with " holder cage ", for avoiding spring strip pressurized unstability, above backing ring, be provided with two groups of clamps.This mode of connection is simple in structure, practical, but is constraint between furnace shell and the backing ring, and the thermal expansion of furnace shell has been subjected to some restrictions, easily produces extra additional stress.The material of spring strip plate requires very high, at present can only be from U.S.'s import.In addition, the tie point of this mode of connection is too much, and installation difficulty is bigger.
Summary of the invention
The purpose of this utility model is to provide a kind of simple in structure, the ball pivot disc suspension type converter trunnion ring that reliability is high and the coupling device of furnace shell.
To achieve these goals, technical scheme that the utility model adopts is: the coupling device of ball pivot disc suspension type converter trunnion ring and furnace shell is characterized in that it is made up of 3-4 connector element;
Each connector element comprises ear seat, bolster, slip cap, support ring, ball socket bearing, the ear seat is fixedlyed connected with backing ring, the ear seat is provided with the slip cap through hole, slip cap is positioned at the slip cap through hole, slip cap is fixedlyed connected with the ear seat, and the outer end of bolster penetrates in the slip cap, and the inner end of bolster is fixedlyed connected with the inner ring of ball socket bearing, fixedly connected with support ring in the outer ring of ball socket bearing, support ring is fixedlyed connected with furnace shell.
When described connector element is 3, become 120 degree angles each other.When described connector element is 4, become 90 degree angles each other.
The coupling device of ball pivot disc suspension type converter trunnion ring and furnace shell, its preferred forms (not getting rid of other combined arranging mode) is to use 120 ° of layouts of 3 connector elements (or being called the ball pivot sliding bar mechanism) with furnace shell and firm being connected in one of backing ring, it connects degree of freedom and equals 0, on the whole the furnace shell constraint is lived, can allow furnace shell free expansion again to each tie point part, simple and ingenious structure.
Analyze from theory of machines, assembly type for 3 connections, there are 4 members ( label 1,2,3,4 in the schematic diagram) in this mechanism, 3 ball socket bearings (typed ball bearing pair), 3 two-stage sliding pairs (slip cap and bolster), each bolster (slide bar) also have an isolated degree of freedom that rotates around self axis, so, the degree of freedom F=4 of furnace shell * 6-3 * 3-3 * 4-3 * 1=0, the theory of machines design of obvious this connection is extraordinary.If consider the security that converter connects, and the property symmetrically and evenly of backing ring carrying, finish the backing ring and the mode preferably of also can yet be regarded as being connected of furnace shell with 4 connector elements (or being called the ball pivot sliding bar mechanism), its connection is hyperstatic certainly.
The big ventilation hole at bolster middle part is communicated with the little ventilation hole on the support ring, if desired, can introduce cooling gas from big ventilation hole and force cooling.
Coupling device of the present utility model is and the diverse a kind of novel coupling devices of coupling device such as existing " three penalty kick reamer bolts are connected ", " connection of VAI ball pivot two power bars ", " connection of SMS-Demag spring strip ", it utilizes 3 statically determinate structures to finish furnace shell to be connected with the supporting of backing ring, there is not other extra aiding support point, structure is very simple, union piece is few, the reliability height, and can adapt to the free to contract and expand of furnace shell, this coupling device is arranged in the bottom of backing ring fully simultaneously.
Conclusion is got up, and the beneficial effects of the utility model are:
1. the component of coupling device of the present utility model are considerably less, do not have structure of assistant support, and structure is very simple, connect reliable;
2. be a statically determinate structure for the furnace shell that 3 connector elements are set, during the converter operation, can not produce additional stress;
3. coupling device of the present utility model can adapt to the distortion of furnace shell and backing ring and the redistribution of the load brought, avoids local overload, free expansion fully when particularly furnace shell is heated;
4. coupling device is non-maintaining, even along with the increase of shell deformation and the accumulation of creep, this coupling device still can keep good connection performance, Maintenance free;
5. coupling device all is arranged on the below of backing ring, realizes that full bottom hangs, and this is easy to realize full positive moment design, need not to add balancing weight in the furnace shell bottom;
6. backing ring top does not have the aiding support point, and the upper of furnace body overskirt is simple, and the inclination angle is big, is easy to the slag landing;
7. compare with existing known converter connecting apparatus, this coupling device is in light weight, and bearing is few, invests cheap;
8. install simply, coupling device all is arranged on the bottom of backing ring, and backing ring can install on the furnace shell from the top cover, and this all is provided with ways of connecting with those backing ring upper and lowers and compares, and it is installed and wants much simple.
Description of drawings
Fig. 1 is structural representation of the present utility model (front view);
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A sectional view among Fig. 2;
Fig. 4 is the enlarged view of I portion among Fig. 3;
Fig. 5 is an axis side view of the present utility model;
Fig. 6 is a mechanical schematic diagram of the present utility model;
Fig. 7 is the layout drawing of another kind of embodiment of the present utility model;
Piece number among the figure: 1-furnace shell, 2-backing ring, 3-first connector element, 4-second connector element, 5-the 3rd connector element, 6-driving end gudgeon, 7-supporting gudgeon, 8-ear seat, 9-bolster, 10-slip cap, 11-gland, 12-support ring, 13-gusset, 14-end cap, 15-ball socket bearing, 16-ventilation macropore, 17-airing hole, 18-first sealing-ring, 19-tap hole, 20-second sealing-ring, 21-the 4th connector element.
Embodiment
Embodiment 1:
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, the coupling device of ball pivot disc suspension type converter trunnion ring and furnace shell, it forms (i.e. first connector element 3, second connector element 4, the 3rd connector element 5) by 3 connector elements (or being called the ball pivot sliding bar mechanism);
Each connector element comprises ear seat 8, bolster 9, slip cap 10, gland 11, support ring 12, gusset 13, end cap 14, ball socket bearing 15, ear seat 8 is fixedlyed connected with backing ring 2 (as welding), ear seat 8 is provided with the slip cap through hole, slip cap 10 is positioned at the slip cap through hole, slip cap 10 and ear seat 8 fixedly connected (as being connected) by bolt, the outer end of bolster 9 penetrates that (bolster 9 can slide along axis in the slip cap 10 in slip cap 10, end away from furnace shell 1 is the outer end, end near furnace shell 1 is inner), the inner end of bolster 9 fixedlys connected with the inner ring of ball socket bearing 15 that (inner ring of ball socket bearing 15 is sleeved on the inner end of bolster 9, and push down) with end cap 14, fixedly connected with support ring 12 and (be fixed by gland 11 in the outer ring of ball socket bearing 15, gland 11 is fixing by bolt and support ring 12), support ring 12 is fixedlyed connected with furnace shell 1 (as welding), gusset respectively with support ring 12, furnace shell 1 welding (playing reinforcement effect).
Fixedlyed connected with end cap 14 by bolt in the inner of described bolster 9, be provided with first sealing-ring 18 between end cap 14 and the support ring 12, bolster 9 is provided with ventilation macropore 16, and the hole at middle part communicates on ventilation macropore 16 and the end cap 14, and support ring is provided with airing hole 17.The inner of the outer ring of ball socket bearing 15 contacts with shoulder block on the support ring 12, and the outer end of the outer ring of ball socket bearing 15 contacts with gland 11, and gland 11 is fixing by bolt and support ring 12, is provided with second sealing-ring 20 between gland 11 and the bolster 9.
3 connector elements uniform (i.e. first connector element 3, second connector element 4, the 3rd connector element 5) become 120 degree angles (as shown in Figure 2) each other.The connector element (second connector element 4, the 3rd connector element 5) that is positioned at tap hole 19 sides of furnace shell 1 is 25 °～45 ° with the line at converter center and the angle of gudgeon axial line (axial line of driving end gudgeon 6 and supporting gudgeon 7).On the vertical direction of furnace shell, connector element is arranged in the position of centre of gravity of furnace shell and the inner anti-material of furnace shell etc.
Tiltable converter contains a backing ring 2, driving end gudgeon 6 and supporting gudgeon 7 (two load-bearing gudgeons), backing ring 2 be looped around converter shell 1 around and separated by a distance with furnace shell, two load-bearing gudgeons are provided with diametrically on the position relative to each other, and converter shell 1 is bearing on the backing ring 2 by 3 connector elements.Each connector element is designed to a kind of ball pivot sliding bar mechanism, one end of bolster (or claiming slide bar) 9 is articulated and connected with the support ring (or claiming outstanding dish) 12 that is fixed on the furnace shell by the mode of a ball socket bearing 15 with universal hinging, and the other end of bolster (slide bar) 9 is slidingly connected with the ear seat 8 that is fixed on the backing ring.
Embodiment 2:
As shown in Figure 7, described connector element is 4 (i.e. first connector element 3, second connector element 4, the 3rd connector element 5, the 4th connector elements 21), and is uniform, becomes 90 degree angles each other.The angle of the line at connector element and converter center and gudgeon axial line (axial line of driving end gudgeon 6 and supporting gudgeon 7) is 25 °～45 °.On the vertical direction of furnace shell, connector element is arranged in the position of centre of gravity of furnace shell and the inner anti-material of furnace shell etc.
Claims (7)
1. the coupling device of ball pivot disc suspension type converter trunnion ring and furnace shell is characterized in that it is made up of 3-4 connector element;
Each connector element comprises ear seat (8), bolster (9), slip cap (10), support ring (12), ball socket bearing (15), ear seat (8) is fixedlyed connected with backing ring (2), ear seat (8) is provided with the slip cap through hole, slip cap (10) is positioned at the slip cap through hole, slip cap (10) is fixedlyed connected with ear seat (8), the outer end of bolster (9) penetrates in the slip cap (10), the inner end of bolster (9) is fixedlyed connected with the inner ring of ball socket bearing (15), fixedly connected with support ring (12) in the outer ring of ball socket bearing (15), support ring (12) is fixedlyed connected with furnace shell (1).
2. the coupling device of ball pivot disc suspension type converter trunnion ring according to claim 1 and furnace shell, it is characterized in that: fixedlyed connected with end cap (14) by bolt in the inner of described bolster (9), be provided with first sealing-ring (18) between end cap (14) and the support ring (12), bolster (9) is provided with ventilation macropore (16), ventilation macropore (16) communicates with the hole that end cap (14) is gone up the middle part, and support ring is provided with airing hole (17).
3. the coupling device of ball pivot disc suspension type converter trunnion ring according to claim 1 and furnace shell, it is characterized in that: the inner of the outer ring of described ball socket bearing (15) contacts with shoulder block on the support ring (12), the outer end of the outer ring of ball socket bearing (15) contacts with gland (11), gland (11) is fixing by bolt and support ring (12), is provided with second sealing-ring (20) between gland (11) and the bolster (9).
4. the coupling device of ball pivot disc suspension type converter trunnion ring according to claim 1 and furnace shell is characterized in that: when described connector element is 3, become 120 degree angles each other.
5. the coupling device of ball pivot disc suspension type converter trunnion ring according to claim 1 and furnace shell, it is characterized in that: when described connector element was 3, being positioned at the connector element of tap hole (19) side of furnace shell (1) and the line at converter center and the angle of gudgeon axial line was 25 °～45 °.
6. the coupling device of ball pivot disc suspension type converter trunnion ring according to claim 1 and furnace shell is characterized in that: when described connector element is 4, become 90 degree angles each other.
7. the coupling device of ball pivot disc suspension type converter trunnion ring according to claim 1 and furnace shell is characterized in that: when described connector element was 4, the line at connector element and converter center and the angle of gudgeon axial line were 25 °～45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201466839U CN201648441U (en) | 2010-03-30 | 2010-03-30 | Ball-jointed suspending plate type device for connecting backing ring and furnace shell of revolving furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201466839U CN201648441U (en) | 2010-03-30 | 2010-03-30 | Ball-jointed suspending plate type device for connecting backing ring and furnace shell of revolving furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201648441U true CN201648441U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201466839U Expired - Lifetime CN201648441U (en) | 2010-03-30 | 2010-03-30 | Ball-jointed suspending plate type device for connecting backing ring and furnace shell of revolving furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201648441U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781696A (en) * | 2010-03-30 | 2010-07-21 | 中冶南方工程技术有限公司 | Spherical hinge disc suspension type connection device of converter ring and furnace shell |
| CN107202076A (en) * | 2017-05-26 | 2017-09-26 | 中冶南方工程技术有限公司 | Bionical heavy connection pawl |
-
2010
- 2010-03-30 CN CN2010201466839U patent/CN201648441U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101781696A (en) * | 2010-03-30 | 2010-07-21 | 中冶南方工程技术有限公司 | Spherical hinge disc suspension type connection device of converter ring and furnace shell |
| CN101781696B (en) * | 2010-03-30 | 2011-09-28 | 中冶南方工程技术有限公司 | Spherical hinge disc suspension type connection device of converter ring and furnace shell |
| CN107202076A (en) * | 2017-05-26 | 2017-09-26 | 中冶南方工程技术有限公司 | Bionical heavy connection pawl |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101124 Effective date of abandoning: 20110928 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20101124 Effective date of abandoning: 20110928 |