CN106011369A - Converter trunnion bearing replacing method - Google Patents
Converter trunnion bearing replacing method Download PDFInfo
- Publication number
- CN106011369A CN106011369A CN201610635673.3A CN201610635673A CN106011369A CN 106011369 A CN106011369 A CN 106011369A CN 201610635673 A CN201610635673 A CN 201610635673A CN 106011369 A CN106011369 A CN 106011369A
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- CN
- China
- Prior art keywords
- converter
- jack
- bearing
- base
- platform
- 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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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4633—Supporting means
- C21C5/464—Trunnion bearings
Abstract
The invention relates to a converter trunnion bearing replacing method. A converter jacking device is adopted to assist converter trunnion bearing replacement, the jacking device comprises a pedestal, a main jack, a support and a main supporting bench, and the pedestal is provided with a telescoping dolly in order to realize convenient pushing. The bearing replacing method comprises the following steps: pushing the jacking device to a position under the bottom of a converter by using the telescoping dolly; arranging an auxiliary supporting bench and an auxiliary jack at the lower portion of a tilting mechanism, and dismounting the bolts of a torsional force beam connecting rod; dismounting the top cover of the bearing seat of a converter trunnion; operating the main jack and the auxiliary jack to stretch out in order to synchronously jack the whole converter together with a trunnion ring, the trunnion and the tilting mechanism, and replacing the trunnion bearing; carrying out opposite direction operation; and re-installing the top cover of the bearing seat, and re-installing the bolts of the torsional force beam connecting rod. The method allows the trunnion bearing to be replaced only through some small parts without dismounting or mounting of the tilting mechanism or the temporary support, so the labor consumption and the time consumption in the working process are greatly reduced.
Description
Technical field
The present invention relates to the ball socketed bearing replacing options of steelmaking converter.
Background technology
Converter is the common equipment of steel-making, as shown in Figure 4,5, its structure includes barrel-shaped body of heater 9, and body of heater 9 side face is arranged
Having backing ring 93, backing ring 93 both sides to be provided with gudgeon 931, gudgeon 931 is arranged on bearing block, and gudgeon is also connected with and fascinates
Mechanism 92, tilting equipment 92 bottom is connected by torsion beam connecting rod 922 has torsion beam 921, tilting equipment 92 can drive stove
Body rotates around gudgeon 931, and torsion beam 921 can buffer impact when fascinating.
Owing to body of heater is built with high-temperature molten steel, the bearing at gudgeon place bears the weight loading of body of heater the most in high temperature environments, again
Bearing the frequent impact that tilting equipment brings, make bearing lower half Fast Wearing, therefore ball socketed bearing needs periodic replacement, or
Bearing is overturn 180 °, makes bearing top and the bottom exchange.
And change the process of bearing, traditional approach is the connection needing to remove gudgeon both sides, then builds interim in gudgeon bottom
Frame, arranges jack stand gudgeon and body of heater on support, then carries out bearing replacing.
In aforesaid operations mode, the connection procedure of dismounting gudgeon and tilting equipment relates to multiple parts, and process is extremely complex, and
Build the support under gudgeon to be also required to consume the plenty of time temporarily, after later stage bearing replacing, need again from new assemble tilting equipment and
Removing falsework, whole Period Process is the longest, and repeatable operation easily causes equipment damage.
Summary of the invention
The technical problem to be solved is: provide a kind of trunnion of converter bearing replacing method, it is not necessary to remove gudgeon and fascinate
The connection of mechanism, consumption of reducing work hours.
The technical solution adopted for the present invention to solve the technical problems is:
Trunnion of converter bearing replacing method, employing converter jacking apparatus auxiliary trunnion of converter bearing replacing: described converter jacking apparatus
Including base, described base top is provided with main jack, and main jack top is provided with support, frame upper be provided with for
Withstand the main support platform of the furnace bottom of converter；Described base includes the fixed pedestal being positioned at outside, and the mid portion of base is that base is put down
Platform, described base platform is connected with fixed pedestal, and base platform bottom is provided with downward projection of limited post, described limited post
Lower surface is higher than fixed pedestal lower surface or concordant with fixed pedestal lower surface；Also include the billy gate being positioned at base platform bottom,
Billy gate includes that vehicle frame, frame downward are provided with wheel, and vehicle frame is additionally provided with the spacing hole adaptive with described limited post, described
Spacing hole is set in limited post side face；Also include that dolly press, described dolly press one end are resisted against base platform bottom surface, one end
It is resisted against above billy gate；
Bearing replacing method include order carry out step A, B, C, D:
A, operation dolly press so that it is stretch out, make billy gate move down, until wheel contacts with ground, fixed pedestal takes off
Overhead, now base is shifted onto below the furnace bottom of converter together with main jack, support and the main support platform on top；Operation dolly
Press so that it is retract, make billy gate move up, until wheel departs from ground, fixed pedestal contact ground, formed steady
Fixed support；Arrange the secondary platform that supports in tilting equipment bottom, the secondary platform bottom that supports arranges secondary jack, removes tilting equipment and torsion
The connecting bolt of beam connecting rod；Remove the upper cover of the bearing block of trunnion of converter；
B, operate main jack and secondary jack stretches out, make whole body of heater together with backing ring, gudgeon and tilting equipment synchronization of jacking up, directly
Depart from and formed enough gaps to gudgeon and bearing block, change ball socketed bearing；
C, operate main jack and secondary jack retraction, make whole body of heater synchronize to decline, directly together with backing ring, gudgeon and tilting equipment
Rigging position is reached to ball socketed bearing and bearing block；
D, operation continue retract main jack and secondary jack, remove pair and support platform, secondary jack and converter jacking apparatus, reinstall
The upper cover of bearing block, reinstalls the connecting bolt of tilting equipment and torsion beam connecting rod.
Further, described billy gate is rectangle, and the position at four angles of billy gate is respectively arranged with described wheel, including four
Individual described spacing hole, and four spacing holes lay respectively at the middle part on billy gate four limit, each spacing hole is provided with described spacing
Post；Described base is rectangle, and described fixed pedestal lays respectively at the position of rectangle both sides, base platform both sides respectively with fixed base
Seat connects；Including four described main jack, four main jack lay respectively at the position at four angles of base, and described support is
The truss structure that shaped steel connects into, and profile is square column type.
The invention has the beneficial effects as follows: use above-mentioned trunnion of converter bearing replacing method, it is only necessary to remove the upper cover of bearing block, turn round
The widgets such as power beam connecting-rod bolts, utilize converter jacking apparatus jack-up body of heater, utilize jack to synchronize jack-up tilting equipment,
Carry out ball socketed bearing replacing, eliminate tilting equipment dismounting and build and remove the operation of falsework, greatly reducing the number of working processes
Consume.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the converter jacking apparatus that the present invention uses；
Fig. 2 is the base schematic diagram of the converter jacking apparatus that the present invention uses；
Fig. 3 is the schematic top plan view of the billy gate of the converter jacking apparatus base that the present invention uses；
Fig. 4 is schematic diagram during converter jacking of the present invention；
When Fig. 5 is converter jacking of the present invention, the schematic diagram of tilting equipment side；
In figure, reference is: base 1, fixed pedestal 11, base platform 12, limited post 121, dolly press 122, activity
Dolly 13, wheel 131, spacing hole 132, support 2, main jack 21, secondary jack 22, main support platform 31, secondary support
Platform 32, body of heater 9, furnace bottom 91, tilting equipment 92, torsion beam 921, torsion beam connecting rod 922, backing ring 93, gudgeon 931.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings:
Trunnion of converter bearing replacing method, employing converter jacking apparatus auxiliary trunnion of converter bearing replacing: described converter jacking apparatus
Including base 1, described base 1 top is provided with main jack 21, and main jack 21 top is provided with support 2, on support 2
Portion is provided with the main support platform 31 of the furnace bottom 91 for withstanding converter；Described base 1 includes the fixed pedestal 11 being positioned at outside,
The mid portion of base 1 is base platform 12, and described base platform 12 is connected with fixed pedestal 11, base platform 12 bottom
Being provided with downward projection of limited post 121, the lower surface of described limited post 121 is higher than fixed pedestal 11 lower surface or and fixed base
Seat 11 lower surfaces are concordant；Also including the billy gate 13 being positioned at base platform 12 bottom, billy gate 13 includes vehicle frame, car
Frame bottom is provided with wheel 131, and vehicle frame is additionally provided with and the spacing hole 132 of described limited post 121 adaptation, described spacing hole 132
It is set in limited post 121 side face；Also include that dolly press 122, described dolly press 122 one end are resisted against base platform 12 end
Face, one end is resisted against above billy gate 13；
Bearing replacing method include order carry out step A, B, C, D:
A, operation dolly press 122 so that it is stretch out, make billy gate 13 move down, until wheel 131 contacts with ground,
Fixed pedestal 11 departs from ground, now shifts onto turn together with main jack 21, support 2 and the main support platform 31 on top by base 1
Below the furnace bottom 91 of stove；Operation dolly press 122 so that it is retract, make billy gate 13 move up, until wheel 131
Departing from ground, fixed pedestal 11 contacts ground, forms stable support；Secondary support platform 32 is set in tilting equipment 92 bottom,
Secondary platform 32 bottom that supports arranges secondary jack 22, removes the connecting bolt of tilting equipment 92 and torsion beam connecting rod 922；Remove and turn
The upper cover of the bearing block of stove gudgeon；
B, operate main jack 21 and secondary jack 22 stretches out, make whole body of heater 9 together with backing ring 93, gudgeon 931 and the machine that fascinates
Structure 92 synchronization of jacking up, until gudgeon 931 and bearing block depart from and formed enough gaps, changes ball socketed bearing；
C, operate main jack 21 and secondary jack 22 bounces back, make whole body of heater 9 together with backing ring 93, gudgeon 931 and the machine that fascinates
Structure 92 synchronizes to decline, until ball socketed bearing and bearing block reach rigging position；
D, operation continue retract main jack 21 and secondary jack 22, remove pair and support platform 32, secondary jack 22 and converter top
Rise device, reinstall the upper cover of bearing block, reinstall the connecting bolt of tilting equipment 92 and torsion beam connecting rod 922.
The bearing replacing method of the present invention, is the furnace bottom 91 using converter jacking apparatus to withstand on converter, withstands on secondary jack 22 and inclines
Motivation structure 92, by body of heater 9, gudgeon 931 and tilting equipment 92 synchronization of jacking up, then carries out bearing replacing, it is not necessary to removes and fascinates
Mechanism is in transmission connection, and need not build falsework.
Concrete, as it is shown in figure 1, jacking apparatus from top to bottom, is followed successively by base 1, main jack 21, support 2 and main
Support platform 31, main jack 21 stretches out can be by the body of heater jacking on top, and main support platform 31 is used for withstanding the furnace bottom 91 of converter, its
Upper surface shape can be and furnace bottom 91 shape adaptation, it is simple to the most firm stress.
Base 1 includes the fixed pedestal 11 being positioned at outside, and hold-down support 11 is for the stable superstructure that supports, and base 1 is also
Including billy gate 13, may be used for promoting on ground easily.
Concrete, the mid portion of base 1 is base platform 12, and billy gate 13 is positioned at base platform 12 bottom, and base is put down
Platform 12 bottom is provided with downward projection of limited post 121, corresponding with the spacing hole 132 of billy gate 13, as in figure 2 it is shown,
Limited post 121 inserts in spacing hole 132, makes billy gate 13 to move up and down, and dolly press 122 two ends bear against
On base platform 12 bottom surface and billy gate 13, extend and retract function for realization, for by downward for billy gate 13
Promoting, such as, dolly press 122 can be jack, jack, and be more highly preferred to can be the mechanical jack of screw structure
Top, jack can realize auto-lock function after stretching out.
During use, dolly press 122 stretches out, and billy gate 13 can be promoted to move down, until the wheel of billy gate 13
131 contact with ground, and fixed pedestal 11 departs from ground, and now, base platform 12 is equivalent to one can conveniently be promoted
The parts such as the main jack 21 on top, support 2 can be transferred to the place needed by flat car.
The lower surface of described limited post 121 is higher than fixed pedestal 11 lower surface or concordant with fixed pedestal 11 lower surface, works as dolly
When press 122 is retracted, billy gate 13 moves up, and fixed pedestal 11 falls support on the ground.Dolly press 122 is also
Can be that other employing lead screw transmission realizes flexible device.
The shape of base 1 and billy gate 13 can change according to practical situation, such as it may be that described billy gate 13 is
Rectangle, the position at 13 4 angles of billy gate is respectively arranged with described wheel 131, including four described spacing holes 132, and four
Individual spacing hole 132 lays respectively at the middle part on billy gate 13 4 limit, and each spacing hole 132 is provided with described limited post 121.
As it is shown on figure 3, billy gate 13 is rectangle, four angles of rectangle are provided with wheel 131, in the middle part of four limits of rectangle
Being respectively provided with spacing hole 132, when dolly press 122 stretches, four limited posts can ensure that billy gate 13 moves down on smoothly
Dynamic.
Base 1 can also be rectangle, can be to include four fixed pedestals 11, and four fixed pedestals 11 lay respectively at base 1
Four faces；Can also be to include two fixed pedestals 11, two fixed pedestals 11 lay respectively at the position of rectangle both sides, base
Platform 12 both sides are connected with fixed pedestal 11 respectively.
The quantity of main jack 21 selects according to practical situation, such as, can be to include four described main jack 21, four masters thousand
Jin top 21 lays respectively at the position at four angles of base 1, and during jacking, four main jack 21 are with identical speed sync jacking.
According to circumstances, support 2 can be the truss structure that shaped steel connects into, and profile is square column type.As it is shown in figure 1, it is permissible
According to the spacing of base 1 with furnace bottom 91, upwards stack one or more support 2.
Concrete, as shown in Figure 4,5, the step of trunnion of converter bearing replacing method includes A, B, C, D step, wherein A
Jacking apparatus is pushed into below converter by step；Secondary jack 22 and secondary support platform 32 are set；Remove bearing block upper cover three
Step can according to circumstances replacing order, such as can first secondary jack 22 and the secondary platform 32 that supports be arranged；By bearing block upper cover
Remove；Again jacking apparatus is pushed into below the furnace bottom 91 of converter.
Carry out B, C, D step the most successively, utilize main jack 21 and secondary jack 22 by same to body of heater 9 and tilting equipment 92
Step jacking, gudgeon 931 and bearing block form enough gaps, the most replaceable ball socketed bearing；Follow-up body of heater 9 and the tilting equipment of allowing again
92 synchronize to retract, and bearing is installed after putting in place, remove secondary jack 22 and jacking apparatus, reinstall bearing block upper cover.
The bearing replacing method of the present invention, eliminates the dismounting that gudgeon 931 is in transmission connection with tilting equipment 92, can avoid fascinating
The labyrinth dismounting of mechanism 92, and not be used in gudgeon and build falsework 931 times, after bearing replacing completes, jacking apparatus
Can quickly withdraw, resume production, it is contemplated that man-hour used by bearing replacing can save 50～about 70%.
Claims (2)
1. trunnion of converter bearing replacing method, it is characterised in that employing converter jacking apparatus auxiliary trunnion of converter bearing replacing: institute
State converter jacking apparatus and include that base (1), described base (1) top are provided with main jack (21), main jack (21)
Top is provided with support (2), and support (2) top is provided with the main support platform (31) of the furnace bottom (91) for withstanding converter；
Described base (1) includes the fixed pedestal (11) being positioned at outside, and the mid portion of base (1) is base platform (12), institute
Stating base platform (12) to be connected with fixed pedestal (11), base platform (12) bottom is provided with downward projection of limited post (121),
The lower surface of described limited post (121) is higher than fixed pedestal (11) lower surface or concordant with fixed pedestal (11) lower surface；Also
Including being positioned at the billy gate (13) of base platform (12) bottom, billy gate (13) includes that vehicle frame, frame downward are provided with
Wheel (131), vehicle frame is additionally provided with the spacing hole (132) adaptive with described limited post (121), described spacing hole (132)
It is set in limited post (121) side face；Also include that dolly press (122), described dolly press (122) one end are resisted against base
Platform (12) bottom surface, one end is resisted against billy gate (13) above；
Bearing replacing method include order carry out step A, B, C, D:
A, operation dolly press (122) so that it is stretch out, make billy gate (13) move down, until wheel (131) with
Ground contacts, and fixed pedestal (11) departs from ground, now by base (1) together with the main jack (21) on top, support (2)
With furnace bottom (91) lower section that main support platform (31) shifts converter onto；Operation dolly press (122) so that it is retract, makes movable little
Car (13) moves up, until wheel (131) departs from ground, and fixed pedestal (11) contact ground, form stable support；
Arrange the secondary platform (32) that supports in tilting equipment (92) bottom, secondary platform (32) bottom that supports arranges secondary jack (22), removes
Tilting equipment (92) and the connecting bolt of torsion beam connecting rod (922)；Remove the upper cover of the bearing block of trunnion of converter；
B, operate main jack (21) and secondary jack (22) stretches out, make whole body of heater (9) together with backing ring (93), gudgeon
And tilting equipment (92) synchronization of jacking up (931), until gudgeon (931) and bearing block depart from and are formed enough gaps, replacing
Ball socketed bearing；
C, operate main jack (21) and secondary jack (22) retraction, make whole body of heater (9) together with backing ring (93), gudgeon
(931) decline with tilting equipment (92) synchronization, until ball socketed bearing and bearing block reach rigging position；
D, operation continue retract main jack (21) and secondary jack (22), remove pair and support platform (32), secondary jack (22)
With converter jacking apparatus, reinstall the upper cover of bearing block, reinstall the connecting bolt of tilting equipment (92) and torsion beam connecting rod (922).
2. trunnion of converter bearing replacing method as claimed in claim 1, it is characterised in that described billy gate (13) is square
Shape, the position at (13) four angles of billy gate is respectively arranged with described wheel (131), including four described spacing holes (132),
And four spacing holes (132) lay respectively at the middle part on billy gate (13) four limit, each spacing hole (132) is respectively provided with
State limited post (121)；Described base (1) is rectangle, and described fixed pedestal (11) lays respectively at the position of rectangle both sides, the end
Seat platform (12) both sides are connected with fixed pedestal (11) respectively；Including four described main jack (21), four main jack
(21) laying respectively at the position at four angles of base (1), described support (2) is the truss structure that shaped steel connects into, and outward
Shape is square column type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635673.3A CN106011369B (en) | 2016-08-04 | 2016-08-04 | Trunnion of converter bearing replacing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635673.3A CN106011369B (en) | 2016-08-04 | 2016-08-04 | Trunnion of converter bearing replacing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106011369A true CN106011369A (en) | 2016-10-12 |
| CN106011369B CN106011369B (en) | 2018-02-02 |
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ID=57133809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610635673.3A Active CN106011369B (en) | 2016-08-04 | 2016-08-04 | Trunnion of converter bearing replacing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN106011369B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747311A (en) * | 2019-11-22 | 2020-02-04 | 中国十七冶集团有限公司 | Jacking and dismantling method for carbon steel converter tangential key |
| CN111975310A (en) * | 2020-07-02 | 2020-11-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for replacing trunnion bearing at transmission side under abnormal condition of steel converter |
| CN113564299A (en) * | 2021-06-29 | 2021-10-29 | 红河钢铁有限公司 | Method for rapidly replacing converter bearing on line |
| CN114875202A (en) * | 2022-06-06 | 2022-08-09 | 中冶华天工程技术有限公司 | Trunnion ring fixing or lifting device and using method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747311A (en) * | 2019-11-22 | 2020-02-04 | 中国十七冶集团有限公司 | Jacking and dismantling method for carbon steel converter tangential key |
| CN111975310A (en) * | 2020-07-02 | 2020-11-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for replacing trunnion bearing at transmission side under abnormal condition of steel converter |
| CN111975310B (en) * | 2020-07-02 | 2022-02-18 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for replacing trunnion bearing at transmission side under abnormal condition of steel converter |
| CN113564299A (en) * | 2021-06-29 | 2021-10-29 | 红河钢铁有限公司 | Method for rapidly replacing converter bearing on line |
| CN114875202A (en) * | 2022-06-06 | 2022-08-09 | 中冶华天工程技术有限公司 | Trunnion ring fixing or lifting device and using method thereof |
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| Publication number | Publication date |
|---|---|
| CN106011369B (en) | 2018-02-02 |
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