CN208995042U - A kind of jacking apparatus for replacing ladle turntable bearing - Google Patents
A kind of jacking apparatus for replacing ladle turntable bearing Download PDFInfo
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- CN208995042U CN208995042U CN201821047621.5U CN201821047621U CN208995042U CN 208995042 U CN208995042 U CN 208995042U CN 201821047621 U CN201821047621 U CN 201821047621U CN 208995042 U CN208995042 U CN 208995042U
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- ladle
- slippage bracket
- turntable bearing
- jacking
- positioning
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Abstract
A kind of jacking apparatus for replacing ladle turntable bearing, belongs to conticaster ladle turret maintenance of equipment technical field, the ladle turntable bearing for quick-replaceable ladle turret.Its technical solution is: the utility model replaces ladle turntable bearing using the replacement tool that jacking hydraulic device, slippage bracket, positioning device form.Old ladle turntable bearing is dismantled and is removed by four groups of identical jacking hydraulic device synchronization of jacking up ladle turrets, slippage bracket, and new ladle turntable bearing is moved into and is installed, and positioning device guarantees that ladle turret and ladle turntable bearing are accurately positioned.The utility model solves the problems, such as that the replacement of ladle turntable bearing is complicated and correction is difficult, the ladle turntable bearing of ladle turret can fast and efficiently be replaced, to significantly shorten the maintenance activity time, improve construction efficiency, reduce the labor intensity of worker, and it is significant improve the installation accuracy of ladle turntable bearing, reduce the security risk in replacement process.
Description
Technical field
The utility model relates to a kind of ratios of ladle turntable bearing for replacing ladle turret to jack slide device, belong to
Conticaster ladle turret maintenance of equipment technical field.
Background technique
Ladle turret is that have revolution using the most universal ladle bearing and acknowledgement of consignment equipment in current conticaster, rise
The multiple functions such as drop, molten steel weighing, locking and ladle stamp heat preservation.Main function is to receive full Baogang's liquid, is turned round by ladle
Platform revolution by molten steel from steel is awarded across being transported to conticaster casting bay, the molten steel in ladle injected into pans, while will pour
Empty ladle, which is back to, awards steel across so that overhead traveling crane is transported, to realize sequence casting.Ladle turntable bearing is the pass of ladle turret
Key member is mainly made of bearing inner race, outer ring, ball etc., and ladle turntable bearing outer ring and rotating part pass through high-intensitive spiral shell
It tethers and connects, bearing inner race is connect by high-strength bolt with pedestal.Ladle turntable bearing is revolving platform stationary part and rotation section
Point convergence piece, can bear and transmit vertical load from the above rotating part of revolving platform firm banking, horizontal load and incline
Turn over torque.Structure is complicated for ladle turret, weight is big, therefore the replacement difficulty of ladle turntable bearing is big.
The conticaster ladle turntable bearing of steel mill's replacement both at home and abroad has following two method at present.
1, disintegration replacement method
This method is exactly to remove ladle stamp device.Remove ladle stamp mechanism, bracket, upper connecting rod, lower link and liter
Arm is dropped, lifting cylinder, turntable, slip ring, fluid pressure line, electric wiring, ladle turret turntable bearing etc. are removed, until tearing open only
Remaining ladle turret firm banking, then new ladle turntable bearing is reinstalled, and restore the various equipment above it, this
Kind method disassembles and installs heavy workload, and replacing construction is long.
2, integrated lifting
This method is the equipment integral jacking above the turntable ladle turret, then replaces ladle turntable shaft
It holds, this method is simple, and it is time saving, it is laborsaving.General in this way to be jacked with four hydraulic jacks or hydraulic cylinder, four hydraulic
Very heavy or hydraulic cylinder is all alternately to jack, and this method is difficult to accomplish synchronization of jacking up in operation, will result in ladle and returns
Equipment shifts above the turntable of turntable, and equipment once shifts above the turntable of ladle turret, and carrying out correction is ten
Divide difficulty.
Utility model content
It is this technical problem to be solved by the utility model is to provide a kind of jacking apparatus for replacing ladle turntable bearing
More changing device can reduce the workload more to change jobs, improve installation accuracy, equipment above the turntable of ladle turret is avoided to go out
It now deviates, improves work efficiency and safety coefficient.
The technical solution for solving above-mentioned technical problem is:
A kind of jacking apparatus for replacing ladle turntable bearing, it includes jacking hydraulic part, slippage bracket, jacks hydraulic section
Divide and be made of electromagnetic shut-off valve and four groups of identical jacking hydraulic devices, every group of jacking hydraulic device includes proportioning valve, jacking liquid
The jacking pedestal of cylinder pressure, hydraulic control one-way valve, overflow valve, four jacking hydraulic cylinders is individually positioned under two revolving platform lifting arms
The mandril of side, four jacking hydraulic cylinders is opposite with four transverse arm roots of two revolving platform lifting arms respectively, hydraulic delivery pipe
It is connected respectively with one end of the proportioning valve of four groups of jacking hydraulic devices by electromagnetic shut-off valve, four proportioning valves pass through liquid respectively
Pressure pipeline and four hydraulic control one-way valves, four jacking hydraulic cylinders are linked in sequence, four jacking hydraulic cylinders respectively with four overflow valves
Be connected, there is displacement sensor in four jacking hydraulic cylinders respectively, slippage bracket by slippage bracket frame, slippage bracket foreleg,
Slippage bracket back leg composition, slippage bracket frame are rectangle horizontal steel frame, slippage bracket foreleg and slippage bracket back leg
The front-end and back-end being welded below slippage bracket frame are respectively perpendicular, slippage bracket frame is placed on revolving platform firm banking
The upper plane of top, slippage bracket frame is opposite with the bottom surface of ladle turntable bearing.
The jacking apparatus of above-mentioned replacement ladle turntable bearing, it there are also positioning device, positioning device by four positioning pins and
Four positioning steel tube compositions, four positioning pins are round steel, and the round steel outer diameter of positioning pin and the internal diameter of positioning steel tube match, four
Positioning pin is vertically welded in the turret base of revolving platform, and four positioning steel tubes are vertically welded on revolving platform firm banking, and four
A positioning pin is inserted respectively into four positioning steel tubes, and the depth that four positioning pins are inserted into four positioning steel tubes is greater than 400mm, and four
A positioning pin and four positioning steel tubes are along the ladle turret circle spacing 90oDistribution.
The jacking apparatus of above-mentioned replacement ladle turntable bearing, the slippage bracket frame stretch out in slippage bracket back leg direction
Revolving platform firm banking, the length of stretching are greater than the diameter of a ladle turntable bearing, are equipped with below slippage bracket frame
Multiple parallel slippage bracket rear leg slippage bracket frames.
The beneficial effects of the utility model are:
The replacement tool that the utility model is formed using jacking hydraulic device, slippage bracket, positioning device is to ladle turntable
Bearing is replaced.Four groups of identical jacking hydraulic devices can be with synchronization of jacking up ladle turret；Slippage bracket can be by old steel
The disassembly of packet turntable bearing removes, and new ladle turntable bearing is moved into and is installed；Positioning device can guarantee ladle turret and steel
Packet turntable bearing is accurately positioned.
The utility model solves the problems, such as that the replacement of ladle turntable bearing is complicated and correction is difficult, can be fast and efficiently
The ladle turntable bearing of replacement ladle turret improves construction efficiency to significantly shorten the maintenance activity time, drops
The low labor intensity of worker, and the installation accuracy of significant the ladle turntable bearing for improving ladle turret, reduce more
Security risk during changing in industry has admirably popularizing value.
Detailed description of the invention
Fig. 1 is ladle turret structural schematic diagram before jacking；
Fig. 2 is the steel ladle rotary table structural schematic diagram for having jacked certain altitude；
Fig. 3 is the schematic diagram for jacking hydraulic part；
Fig. 4 is the A-A cross-sectional view of Fig. 2；
Fig. 5 is the B-B cross-sectional view of Fig. 4；
Fig. 6 is the structural schematic diagram of revolving platform lifting arm.
Mark in figure as follows: electromagnetic shut-off valve 1, the first proportioning valve 2, the second proportioning valve 3, first jack hydraulic cylinder 4, first
Hydraulic control one-way valve 5, the first overflow valve 6, second jacking hydraulic cylinder 7, the second hydraulic control one-way valve 8, the second overflow valve 9, third jacking
Hydraulic cylinder 10, third hydraulic control one-way valve 11, third overflow valve the 12, the 4th jack hydraulic cylinder 13, the 4th hydraulic control one-way valve the 14, the 4th
Overflow valve 15, third proportioning valve 16, the 4th proportioning valve 17, turntable bottom plate 18, jacking pedestal 19, ladle turntable bearing 20, revolution
Platform firm banking 21, positioning steel tube 22, positioning pin 23, the second lifting arm 24, the first lifting arm 25, turret base 26, sliding branch
Three legs 31, revolving platform after two legs 30, slippage bracket after the latter leg 29 of frame foreleg 27, slippage bracket 28, slippage bracket, slippage bracket
Firm banking upper surface 32, slippage bracket frame 33, displacement sensor 34.
Specific embodiment
The jacking apparatus of the replacement ladle turntable bearing of the utility model is by jacking hydraulic part, slippage bracket 28 and positioning
Device composition.
Jacking hydraulic part is made of electromagnetic shut-off valve 1 and four groups of identical jacking hydraulic devices, every group of hydraulic dress of jacking
It sets including proportioning valve, jacking hydraulic cylinder, hydraulic control one-way valve, overflow valve；Slippage bracket 28 is by slippage bracket frame 33, slippage bracket
Three legs 31 form after two legs 30, slippage bracket after the latter leg 29 of foreleg 27, slippage bracket, slippage bracket；Positioning device is by positioning
Steel pipe 22, positioning pin 23 form.
Fig. 1,2,6 show, the jacking pedestals 19 of four of four groups of jacking hydraulic devices jacking hydraulic cylinders are individually positioned in the
One lifting arm 25, the lower section of the second lifting arm 24, the mandril of four jacking hydraulic cylinders respectively with the first lifting arm 25, the second lifting arm
24 four transverse arm roots are opposite, and four jacking hydraulic cylinders play jacking to revolving platform.
Fig. 1,2 displays, positioning device are made of four positioning pins 23 and four positioning steel tubes 22.Four positioning pins 23 are circle
Steel, the round steel outer diameter and the internal diameter of positioning steel tube 22 of positioning pin 23 match, and four positioning pins 23 are vertically welded in revolving platform
In turret base 26, four positioning steel tubes 22 are vertically welded on revolving platform firm banking 21, and four positioning pins 23 are inserted into respectively
Into four positioning steel tubes 22, the depth that four positioning pins 23 are inserted into four positioning steel tubes 22 is greater than 400mm, four positioning pins 23
With four positioning steel tubes 22 along the ladle turret circle spacing 90oDistribution, during jacking from positioning, guiding role.
Fig. 4,5 displays, slippage bracket frame 33 is rectangle horizontal steel frame, and slippage bracket foreleg 27 is vertically welded in
The front end of 33 lower section of slippage bracket frame, slippage bracket frame 33 stretch out revolving platform firm banking in slippage bracket back leg direction
21, the length of stretching is greater than the diameter of a ladle turntable bearing 20, and the lower section of slippage bracket frame 33 is equipped with multiple parallel
Slippage bracket back leg, be three legs 31 after two legs 30, slippage bracket after the latter leg 29 of slippage bracket, slippage bracket respectively.
In use, first by three legs 31 after two legs 30, slippage bracket after the latter leg 29 of slippage bracket, slippage bracket
It is welded to connect with slippage bracket frame 33, then slippage bracket frame 33 is placed on to the top of revolving platform firm banking 21, made
The upper plane of slippage bracket frame 33 is opposite with the bottom surface of ladle turntable bearing 20, then by slippage bracket foreleg 27 and slides branch
The front end of frame frame 33 is welded to connect, then will be by slippage bracket foreleg 27, the latter leg 29 of slippage bracket and the fixed bottom of revolving platform
Seat 21 is welded to connect.
Fig. 3 shows that hydraulic delivery pipe passes through one of electromagnetic shut-off valve 1 respectively with the proportioning valve of four groups of jacking hydraulic devices
End is connected, and four proportioning valves pass through hydraulic pipeline respectively and four hydraulic control one-way valves, four jacking hydraulic cylinders are connected, and four
Jacking hydraulic cylinder is connected with four overflow valves respectively, has displacement sensor 34 respectively in four jacking hydraulic cylinders.
The application method of the utility model is as follows:
Step 1: preparation
Ladle turret, which goes to open, pours the vertical position of work, then protective demolition revolving platform outer protection cover is torn open with pneumatic pick
Except refractory brick, then working face around revolving platform is cleaned out, removes all control lines and medium hose, is removed in revolving platform
All connecting pipes of rotary joint, overhead traveling crane cooperation hang out rotary joint, weld respectively in 20 upper and lower of revolving platform ladle turntable bearing
Four positioning devices are connect, between each other 90 ° of interval, 23 round steel of positioning pin is welded on the turret base above ladle turntable bearing 20
On 26, positioning steel tube 22 is welded on revolving platform firm banking 21, guarantees that positioning pin 23 has more than 400mm in positioning steel tube 22
The flexible surplus of length.
Step 2: jacking, places slippage bracket
20 inner ring screw of ladle turntable bearing is removed, by the first jacking hydraulic cylinder 4, second jacks hydraulic cylinder 7, third jacks
Four jacking pedestals 19 that hydraulic cylinder the 10, the 4th jacks hydraulic cylinder 13 are placed under the first lifting arm 25 and the second lifting arm 24,
Pedestal will pad levelling, and vertex is 25 4 transverse arm roots of the second lifting arm 24 and the first lifting arm, four jacking hydraulic cylinders guarantors
It is consistent to hold height, while slowly 18 top of turntable bottom plate of revolving platform and the jack-up 400mm of ladle turntable bearing 20 are placed in jacking
Slippage bracket 28 is simultaneously reinforced.
Step 3: replacement ladle turntable bearing
The first jacking hydraulic cylinder 4, second jacking hydraulic cylinder 7, third jacking hydraulic cylinder the 10, the 4th is allowed to jack hydraulic cylinder 13 together
Step decline, makes the 20-30mm above slippage bracket frame 33 of ladle turntable bearing 20,20 outer ring spiral shell of ladle turntable bearing of dismantling
Silk, makes ladle turntable bearing fall 20 to slippage bracket frame 33.Again the upward 400mm of turntable bottom plate 18 of revolving platform is jacked,
Ladle turntable bearing 20 is slowly pulled out along slippage bracket frame 33 with jack, is hung to overhead traveling crane on one side, by new ladle
Turntable bearing 20 is hung on slippage bracket frame 33, is installed in place with jack, at this time it should be noted that 20 Internal and external cycle of ladle turntable bearing
(S) point of upper label will be placed on ladle turret ladle and receive on the position of position and ladle pouring position line vertical direction, allow the
One jacking hydraulic cylinder 4, second jacks hydraulic cylinder 7, third jacking hydraulic cylinder the 10, the 4th jacks the synchronous decline of hydraulic cylinder 13, makes to turn
Platform bottom plate 18 and ladle turntable bearing 20 are apart from being 20-30mm, between installation 20 outer ring of ladle turntable bearing and turntable bottom plate 18
Screw and fastening.
Step 4: jacking, removes and tears slippage bracket open
First jacking hydraulic cylinder 4, second jacks hydraulic cylinder 7, third jacking hydraulic cylinder the 10, the 4th jacks hydraulic cylinder 13 and synchronizes
Rise, remove slippage bracket 28, the first jacking hydraulic cylinder 4, second jacking hydraulic cylinder 7, third jacking hydraulic cylinder the 10, the 4th is allowed to push up
The synchronous decline of hydraulic cylinder 13 is risen, when ladle turntable bearing 20 and revolving platform firm banking 32 close to 20-30mm of upper surface,
Stop decline, the screw between 20 inner ring of ladle turntable bearing and revolving platform firm banking 21 be installed, four jacking hydraulic cylinders after
Continuous synchronous decline, fastens 20 inner ring screw of ladle turntable bearing, connecting screw will be fastened symmetrically, and each bolt pretightening will reach
To drawing requirement.
Step 5: restorer
Dress hydraulic slip ring, fluid pressure line, electric wiring, transmission device etc. are returned, refractory brick and outer protection cover restore.
Step 6: test running
Mounted equipment is debugged, production unit is delivered after trying successfully and uses.
The section components of one embodiment of the utility model are as follows:
Slippage bracket frame 33 is the frame structure made by the channel steel of 200mm, and lacing wire is done by the channel steel of 200mm in centre,
There are slippage bracket foreleg 27 and slippage bracket back leg by the channel steel production of 200mm below；
Positioning pin 23 uses the round steel of Φ 50, and positioning steel tube 22 uses the steel pipe of internal diameter 50mm；
Electromagnetic shut-off valve 1:DG3VP-3-103A-VM-U
The model of proportioning valve: D41FHB32C1NB00
The model of hydraulic control one-way valve: CKCB-XAN
Overflow valve: RDBA-LAN
Jack the model of hydraulic cylinder: nonstandard oil cylinder, specification see the table below:
。
Claims (3)
1. a kind of jacking apparatus for replacing ladle turntable bearing, it is characterised in that: it includes jacking hydraulic part, slippage bracket
(28), jacking hydraulic part is made of electromagnetic shut-off valve (1) and four groups of identical jacking hydraulic devices, every group of jacking hydraulic device
Including proportioning valve, jacking hydraulic cylinder, hydraulic control one-way valve, overflow valve, the jacking pedestal (19) of four jacking hydraulic cylinders is placed respectively
Below two revolving platform lifting arms, four jacking hydraulic cylinder mandril respectively with four transverse arm roots of two revolving platform lifting arms
Portion is opposite, and hydraulic delivery pipe is connected with one end of the proportioning valve of four groups of jacking hydraulic devices respectively by electromagnetic shut-off valve (1)
It connects, four proportioning valves pass through hydraulic pipeline respectively and four hydraulic control one-way valves, four jacking hydraulic cylinders are linked in sequence, four jackings
Hydraulic cylinder is connected with four overflow valves respectively, has displacement sensor (34), slippage bracket respectively in four jacking hydraulic cylinders
(28) it is made of slippage bracket frame (33), slippage bracket foreleg (27), slippage bracket back leg, slippage bracket frame (33) is length
Rectangular horizontal steel framework, slippage bracket foreleg (27) and slippage bracket back leg, which are respectively perpendicular, is welded on slippage bracket frame (33)
The front-end and back-end of lower section, slippage bracket frame (33) are placed on the top of revolving platform firm banking (21), slippage bracket frame
(33) upper plane is opposite with the bottom surface of ladle turntable bearing (20).
2. the jacking apparatus of replacement ladle turntable bearing according to claim 1, it is characterised in that: there are also positioning dresses for it
It sets, positioning device is made of four positioning pins (23) and four positioning steel tubes (22), and four positioning pins (23) are round steel, positioning pin
(23) internal diameter of round steel outer diameter and positioning steel tube (22) matches, and four positioning pins (23) are vertically welded in the turntable of revolving platform
On pedestal (26), four positioning steel tubes (22) are vertically welded on revolving platform firm banking (21), and four positioning pins (23) are respectively
It being inserted into four positioning steel tubes (22), the depth that four positioning pins (23) are inserted into four positioning steel tubes (22) is greater than 400mm, and four
A positioning pin (23) and four positioning steel tubes (22) are along the ladle turret circle spacing 90oDistribution.
3. the jacking apparatus of replacement ladle turntable bearing according to claim 1, it is characterised in that: slippage bracket frame
(33) revolving platform firm banking (21) are stretched out in slippage bracket back leg direction, the length of stretching is greater than a ladle turntable bearing
(20) diameter is equipped with multiple parallel slippage bracket rear leg slippage bracket frames below slippage bracket frame (33)
(33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821047621.5U CN208995042U (en) | 2018-07-03 | 2018-07-03 | A kind of jacking apparatus for replacing ladle turntable bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821047621.5U CN208995042U (en) | 2018-07-03 | 2018-07-03 | A kind of jacking apparatus for replacing ladle turntable bearing |
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| Publication Number | Publication Date |
|---|---|
| CN208995042U true CN208995042U (en) | 2019-06-18 |
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ID=66796207
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821047621.5U Active CN208995042U (en) | 2018-07-03 | 2018-07-03 | A kind of jacking apparatus for replacing ladle turntable bearing |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862091A (en) * | 2018-07-03 | 2018-11-23 | 宣化钢铁集团有限责任公司 | A kind of jacking apparatus and method for replacing ladle turntable bearing |
| CN112518659A (en) * | 2020-11-10 | 2021-03-19 | 北京首钢建设集团有限公司 | Construction method for replacing joint bearing and pin shaft on inner side of crank on ladle turret |
| CN113955663A (en) * | 2021-09-30 | 2022-01-21 | 上海二十冶建设有限公司 | Method for horizontally pushing and integrally jacking upper revolving body of bale revolving platform in place |
-
2018
- 2018-07-03 CN CN201821047621.5U patent/CN208995042U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108862091A (en) * | 2018-07-03 | 2018-11-23 | 宣化钢铁集团有限责任公司 | A kind of jacking apparatus and method for replacing ladle turntable bearing |
| CN112518659A (en) * | 2020-11-10 | 2021-03-19 | 北京首钢建设集团有限公司 | Construction method for replacing joint bearing and pin shaft on inner side of crank on ladle turret |
| CN113955663A (en) * | 2021-09-30 | 2022-01-21 | 上海二十冶建设有限公司 | Method for horizontally pushing and integrally jacking upper revolving body of bale revolving platform in place |
| CN113955663B (en) * | 2021-09-30 | 2023-08-25 | 上海二十冶建设有限公司 | Method for horizontally pushing and integrally jacking upper revolving body of ladle turret to be in position |
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