CN104649122B - A kind of novel squeeze roll changing rig - Google Patents
A kind of novel squeeze roll changing rig Download PDFInfo
- Publication number
- CN104649122B CN104649122B CN201510069831.9A CN201510069831A CN104649122B CN 104649122 B CN104649122 B CN 104649122B CN 201510069831 A CN201510069831 A CN 201510069831A CN 104649122 B CN104649122 B CN 104649122B
- Authority
- CN
- China
- Prior art keywords
- trip holder
- squeeze roll
- spindle nose
- clamping die
- hole
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a kind of novel squeeze roll changing rig, including spindle nose fixed mechanism, hoisting beam and the tractor driven by overhead traveling crane, spindle nose fixed mechanism is fixedly mounted on one end of hoisting beam, and the other end of hoisting beam is provided with balancing weight；The dragging end of tractor is connected with hoisting beam；Spindle nose fixed mechanism includes controlling bar, upper clamping die, lower clamping die, the upper trip holder be arrangeding in parallel up and down and lower trip holder, one end of upper trip holder and lower trip holder is each attached on bearing, and the free end of lower trip holder stretches out the edge of trip holder free end；The lower surface of upper trip holder free end is fixing connects upper clamping die, and upper clamping die offers the semi-circular recesses matched with squeeze roll spindle nose outer peripheral face；The upper surface of lower trip holder free end is fixing connects lower clamping die, and lower clamping die offers the semi-circular recesses that the spindle nose outer peripheral face with squeeze roll matches.The present invention improves roll change efficiency, saves manpower and materials.
Description
Technical field
The present invention relates to mechanical equipment of steel rolling field, be specifically related to a kind of novel squeeze roll changing rig.
Background technology
Squeeze roll is the visual plant of pickled steel strip in cold mill complex, in cold mill complex, needs to squeeze abrasion, scuffing
Dry roller roll change.Existing changing rig is usually full circle form of sleeve, first the spindle nose of squeeze roll is directed at full circle during roll change
Sleeve inserts, and fixes the spindle nose of squeeze roll with tight fixed bolt, is adjusted the position of counterweight by handwheel and decelerator, to change
Changing rig center of gravity reaches balance, is finally hauled out by squeeze roll.But, the changing rig of this full circle form of sleeve needs artificial
Repeatedly adjusting and spindle nose could insert sleeve, tight fixed bolt has the most only withstood a point of spindle nose outer peripheral face, it is impossible to firmly
Fix spindle nose, and handwheel twisting screw rod regulation counterweight wastes time and energy.Therefore, it is necessary to prior art is improved.
Summary of the invention
Present invention aims to the deficiency of above-mentioned technology, it is provided that a kind of squeeze roll spindle nose of being conveniently inserted and fixed
Novel squeeze roll changing rig.
The present invention solves that the problems referred to above be the technical scheme is that a kind of novel squeeze roll changing rig, including axle
Head fixed mechanism, hoisting beam and the tractor driven by overhead traveling crane, described spindle nose fixed mechanism is fixedly mounted on hoisting beam
One end, the other end of hoisting beam is provided with balancing weight；The dragging end of described tractor is connected with hoisting beam.
By such scheme, described spindle nose fixed mechanism includes controlling bar, upper clamping die, lower clamping die, be arrangeding in parallel up and down
Upper trip holder and lower trip holder, and the bearing being connected with hoisting beam one end, described upper trip holder and lower clamping die
One end of seat is each attached on bearing, and the free end of lower trip holder stretches out the edge of trip holder free end；Described upper folder
The lower surface of tight die holder free end is fixing connects upper clamping die, and upper clamping die offers and matches with squeeze roll spindle nose outer peripheral face
Semi-circular recesses；The upper surface of lower trip holder free end is fixing connects lower clamping die, and lower clamping die offers and squeeze roll
The semi-circular recesses that spindle nose outer peripheral face matches；Described upper trip holder is corresponding with lower trip holder offers large through-hole, the most logical
Hole is slightly assembled with controlling bar；One end of described control bar is connected with bearing by loop chain；On the spindle nose outer peripheral face of described squeeze roll
The annular groove being provided with and control bar phase configuration, controls bar and can realize the spindle nose of squeeze roll through large through-hole and annular groove
Fixing.
By such scheme, described seat end surface is additionally provided with hex bolts and the locking nut coordinated with hex bolts.
By such scheme, described upper trip holder is provided with the first fixed mount, lower trip holder is provided with second solid
Determining frame, the first fixed mount and the second fixed mount all offer small through hole, small through hole and the control medium assembling of bar；In described small through hole
Heart line is same straight line with the centrage of large through-hole, and the aperture of small through hole is less than the aperture of large through-hole.By such scheme, described
Control bar and include shaft and handle vertically disposed with shaft, shaft is provided with the little axle in location.
By such scheme, described first fixed mount is provided with the groove suitable with positioning little axle.
By such scheme, described lower trip holder being provided with two blocks of side plates, side plate top is connected with upper trip holder.
By such scheme, described bearing being additionally provided with bracing frame, the top of bracing frame is provided with groove, controls the hands of bar
Handle may be stuck in the groove at bracing frame top.
By such scheme, described tractor includes the suspension ring hanging on overhead traveling crane, and shackle and hook, and described suspension ring lead to
Crossing strap to be connected with shackle, shackle is connected with hook by chain block；The middle part of described hoisting beam is provided with first and hangs
Assembling platform, the Balance weight end of hoisting beam is additionally provided with the second hoisting platform, and the second hoisting platform is connected with hook；Suspension ring are by long steel
Cord is connected with the first hoisting platform.
The invention has the beneficial effects as follows: the spindle nose that the semicircle clamping die structure 1, front and back arranged can make squeeze roll is the most accurate
True insertion changing rig, it is not necessary to manually repeatedly adjust, it is to avoid the waste of manpower；2, bar is controlled by the spindle nose of insertion firmly
Being fixed on changing rig, during effectively prevent dragging roller, spindle nose departs from changing rig；3, by adjusting the six of seat end surface
Corner bolt and locking nut control the built-in length of spindle nose, it is to avoid spindle nose is repeatedly inserted in hole by control bar, or because spindle nose is stretched
Entering long, the bearing block of squeeze roll collides with spindle nose fixed mechanism；4, by chain block regulation hoisting beam balance with
Drag squeeze roll, time saving and energy saving, improve production efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of one specific embodiment of the present invention.
Fig. 2 is enlarged drawing at A in Fig. 1.
Fig. 3 is the B-B sectional view of Fig. 2.
Fig. 4 is the structural representation of the spindle nose insertion spindle nose fixed mechanism of squeeze roll.
Fig. 5 is the structural representation of the first fixed mount in the present embodiment.
Fig. 6 is the top view of Fig. 5.
Fig. 7 is the left view of Fig. 5.
Fig. 8 is upper clamping die and the structural representation of lower clamping die in the present embodiment.
Fig. 9 is the right view of Fig. 8.
Wherein, the 1, first fixed mount；2, bar is controlled；3, loop chain；4, bracing frame；5, long steel wire rope；6, suspension ring；7, short steel wire
Rope；8, shackle；9, chain block；10, balancing weight；11, hoisting beam；12, hex bolts；13, locking nut；14, upper clamping die；
15, lower clamping die；16, upper trip holder；17, lower trip holder；18, squeeze roll；19, the first hoisting platform；20, second hang
Assembling platform；21, hook；22, bearing；23, the second fixed mount；24, large through-hole；25, small through hole；26, little axle is positioned；27, side plate.
Detailed description of the invention
In order to be better understood from the present invention, the present invention is further illustrated with specific embodiment below in conjunction with the accompanying drawings.
One novel squeeze roll changing rig as shown in Figure 1, including spindle nose fixed mechanism, hoisting beam 11 with pass through overhead traveling crane
The tractor driven, spindle nose fixed mechanism is fixedly mounted on one end (left end in Fig. 1) of hoisting beam 11, hoisting beam 11 another
One end is provided with balancing weight 10；The middle part of hoisting beam 11 is provided with the first hoisting platform 19, and the Balance weight end of hoisting beam 11 also sets up
There is the second hoisting platform 20；Tractor includes the suspension ring 6 needing to hang on overhead traveling crane during roll change, and shackle 8 and hook 21, hangs
Ring 6 is connected with shackle 8 by strap 7, and shackle 8 is connected with hook 21 by chain block 9, and hook 21 and the second lifting are flat
Platform 20 connects；Suspension ring 6 are connected with the first hoisting platform 19 by long steel wire rope 5.
In the present embodiment, spindle nose fixed mechanism as shown in Figures 2 and 3 includes controlling bar 2, upper clamping die 14, lower clamping
Mould 15, the upper trip holder 16 be arrangeding in parallel up and down and lower trip holder 17, and the bearing 22 being connected with hoisting beam 11 one end,
One end of upper trip holder 16 and lower trip holder 17 is each attached on bearing 22, and the free end of lower trip holder 17 stretches out folder
The edge of tight die holder 16 free end；Two blocks of side plates 27, side plate 27 top and upper trip holder 16 it is provided with on lower trip holder 17
Connect, to support upper trip holder 16 and lower trip holder 17；The lower surface of upper trip holder 16 free end is bolted
Upper clamping die 14, upper clamping die 14 offers the semi-circular recesses that the spindle nose outer peripheral face with squeeze roll 18 matches；Lower clamping die
The upper surface of seat 17 free ends is bolted lower clamping die 15；Outside offering with the spindle nose of squeeze roll 18 on lower clamping die 15
(upper clamping die 14 and lower clamping die 15 stagger setting, and the spindle nose of squeeze roll 18 is along lower clamping for semi-circular recesses that side face matches
Mould 15 can insert smoothly, and upper clamping die 14 and lower clamping die 15 are made by cast copper material, can protect the axle of squeeze roll 18
Head)；Upper trip holder 16 and lower trip holder 17 correspondence offer large through-hole 24, and large through-hole 24 slightly assembles with controlling bar 2；Control
One end of bar 2 is connected with bearing 22 by loop chain 3, and when before preventing roll change, overhead traveling crane moves, control bar 2 comes off；The spindle nose of squeeze roll 18
Outer peripheral face offers the annular groove suitable with controlling bar 2, controls bar 2 and can fix axle through large through-hole 24 and annular groove
Head.
Wherein, bearing 21 end face is provided with hex bolts 12 and the locking nut 13(coordinated with hex bolts 12 passes through
Adjustment hex bolts 12 and locking nut 13 control the spindle nose built-in length of squeeze roll 18)；Utilize the roll change of this changing rig first
Time, the spindle nose of squeeze roll 18 is inserted spindle nose fixed mechanism and constantly adjusts the position of hex bolts 12, can until controlling bar 2
Being easily inserted the annular groove of spindle nose, be then locked with locking nut 13, this position is continued to use in roll change the most every time.
It is bolted the first fixed mount 1 on upper trip holder 16, lower trip holder 17 has been bolted
Second fixed mount 23, the first fixed mount 1 and the second fixed mount 23 all offer small through hole 25, small through hole 25 and the control medium dress of bar 2
Join；The centrage of described small through hole 25 and the centrage of large through-hole 24 are same straight line, and the aperture of small through hole 25 is logical less than big
The aperture in hole 24 (during roll change, control bar 2 and the power major part being subject to passed to the first fixed mount 1 and the second fixed mount 23, it is to avoid
Upper trip holder 16 and lower trip holder 17 stress are damaged；First fixed mount 1 and the second fixed mount 23 wear and tear or deform rear
Just change).
Control bar 2 and include shaft and handle vertically disposed with shaft, shaft is provided with the little axle 26 in location；First fixes
It is provided with the groove suitable with positioning little axle 26 on frame 1, after control bar 2 inserts the spindle nose of squeeze roll 18,2 turns of bar will be controlled
Dynamic 90 degree, position little axle 26 and be placed in the groove on the first fixed mount 1；Bracing frame 4, bracing frame 4 it is additionally provided with on bearing 22
Top be provided with groove, control in the groove that the handle of bar 2 may be stuck in bracing frame 2 top.
The specific operation process of the present invention is as follows: first, and the chain of chain block 9 is placed on hoisting beam 11 front end and chain
Bar has enough length, it is ensured that operator stand in can pull chain, now on the first hoisting platform 19 steel platform below
Control bar 2 handle to be placed on bracing frame 4；Changing rig is driven to move, with close to squeeze roll 18 to be replaced by overhead traveling crane；Treat
When this changing rig is close to the spindle nose of squeeze roll 18, after spindle nose is inserted upper clamping die 14 and lower clamping die 15 by human assistance, control
Bar 2 processed twists 90 degree, and shaft is in small through hole 25 and large through-hole 24 insert the annular groove of spindle nose, and the little axle of shaft 26 is placed on
In the groove of one fixed mount 1, spindle nose can be fixed on hoisting beam 11；Subsequently operator stand in steel platform pull-up start to draw
The chain of calabash 9 changes the position of suspension ring 6, or increase and decrease balancing weight 10, makes hoisting beam 11 be in horizontal equilibrium state；Finally open
Dynamic overhead traveling crane moves hoisting beam 11, is hauled out by squeeze roll 18.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (8)
1. a novel squeeze roll changing rig, it is characterised in that include spindle nose fixed mechanism, hoisting beam (11) and pass through overhead traveling crane
The tractor driven, described spindle nose fixed mechanism is fixedly mounted on one end of hoisting beam (11), the other end of hoisting beam (11)
It is provided with balancing weight (10)；The dragging end of described tractor is connected with hoisting beam (11)；Described spindle nose fixed mechanism includes control
Bar processed (2), upper clamping die (14), lower clamping die (15), the upper trip holder (16) be arrangeding in parallel up and down and lower trip holder
(17) bearing (22), and with hoisting beam (11) one end being connected；Described upper trip holder (16) and lower trip holder (17)
One end is each attached on bearing (22), and the free end of lower trip holder (17) stretches out the edge of trip holder (16) free end；
The lower surface of described upper trip holder (16) free end is fixing connects upper clamping die (14), and upper clamping die (14) offers and extracts
The semi-circular recesses that roller (18) spindle nose outer peripheral face matches；The upper surface of lower trip holder (17) free end is fixing connects lower clamping
Mould (15), lower clamping die (15) offers the semi-circular recesses that the spindle nose outer peripheral face with squeeze roll (18) matches；On described
Trip holder (16) and lower trip holder (17) correspondence offer large through-hole (24), and large through-hole (24) slightly assembles with controlling bar (2)；
One end of described control bar (2) is connected with bearing (22) by loop chain (3)；Arrange on the spindle nose outer peripheral face of described squeeze roll (18)
The annular groove having and control bar (2) phase configuration, controls bar (2) and can realize squeeze roll through large through-hole (24) and annular groove
(18) spindle nose is fixed.
A kind of novel squeeze roll changing rig the most as claimed in claim 1, it is characterised in that on described bearing (22) end face also
It is provided with hex bolts (12) and the locking nut (13) coordinated with hex bolts (12).
A kind of novel squeeze roll changing rig the most as claimed in claim 1, it is characterised in that on described upper trip holder (16)
It is provided with the first fixed mount (1), lower trip holder (17) is provided with the second fixed mount (23), the first fixed mount (1) and second
Fixed mount (23) all offers small through hole (25), small through hole (25) and control bar (2) medium assembling；The center of described small through hole (25)
Line is same straight line with the centrage of large through-hole (24), and the aperture of small through hole (25) is less than the aperture of large through-hole (24).
A kind of novel squeeze roll changing rig the most as claimed in claim 3, it is characterised in that described control bar (2) includes bar
Body and handle vertically disposed with shaft, shaft is provided with the little axle in location (26).
A kind of novel squeeze roll changing rig the most as claimed in claim 1, it is characterised in that on described lower trip holder (17)
Being provided with two pieces of side plates (27), side plate (27) top is connected with upper trip holder (16).
A kind of novel squeeze roll changing rig the most as claimed in claim 4, it is characterised in that on described first fixed mount (1)
It is provided with and positions the groove that little axle (26) is suitable.
A kind of novel squeeze roll changing rig the most as claimed in claim 4, it is characterised in that described bearing also sets up on (22)
Having bracing frame (4), the top of bracing frame (4) to be provided with groove, the handle controlling bar (2) may be stuck in the recessed of bracing frame (4) top
In groove.
A kind of novel squeeze roll changing rig the most as claimed in claim 2, it is characterised in that described tractor includes hanging over
Suspension ring (6) on overhead traveling crane, and shackle (8) and hook (21), described suspension ring (6) are by strap (7) and shackle (8) even
Connecing, shackle (8) is connected with hook (21) by chain block (9)；The middle part of described hoisting beam (11) is provided with the first lifting and puts down
Platform (19), the Balance weight end of hoisting beam (11) is additionally provided with the second hoisting platform (20), the second hoisting platform (20) and hook (21)
Connect；Suspension ring (6) are connected with the first hoisting platform (19) by long steel wire rope (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510069831.9A CN104649122B (en) | 2015-02-10 | 2015-02-10 | A kind of novel squeeze roll changing rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510069831.9A CN104649122B (en) | 2015-02-10 | 2015-02-10 | A kind of novel squeeze roll changing rig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104649122A CN104649122A (en) | 2015-05-27 |
| CN104649122B true CN104649122B (en) | 2016-12-07 |
Family
ID=53240844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510069831.9A Active CN104649122B (en) | 2015-02-10 | 2015-02-10 | A kind of novel squeeze roll changing rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104649122B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105502142B (en) * | 2015-07-13 | 2017-07-14 | 中国工程物理研究院激光聚变研究中心 | Precision positioning and flexible docking system |
| CN105290761B (en) * | 2015-10-27 | 2017-07-11 | 中冶南方工程技术有限公司 | A kind of fast roll changing method |
| CN105480844B (en) * | 2015-12-31 | 2017-10-31 | 湖北三江航天红阳机电有限公司 | A kind of single hook lifts by crane levelling device |
| CN105417351B (en) * | 2016-01-12 | 2017-08-01 | 中车贵阳车辆有限公司 | A kind of coupler draft gear handling apparatus and its handling method |
| CN106809721B (en) * | 2017-02-10 | 2018-11-27 | 平高集团有限公司 | A kind of potting breaker arc-chutes hoisting tooling |
| CN110092296A (en) * | 2018-01-31 | 2019-08-06 | 上海二十冶建设有限公司 | Suspender and its application method for furnace roller lifting |
| CN108483209A (en) * | 2018-04-24 | 2018-09-04 | 安徽合力股份有限公司 | A kind of suspender for assembling electri forklift front axle assy |
| CN115231428A (en) * | 2022-07-21 | 2022-10-25 | 中国十九冶集团有限公司 | Blast furnace tuyere sleeve installation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201135996Y (en) * | 2007-12-11 | 2008-10-22 | 武汉钢铁(集团)公司 | Fast roller-replacing device |
| CN201670647U (en) * | 2010-06-04 | 2010-12-15 | 中冶恒通冷轧技术有限公司 | Double-hook crane on-line roll changing hanging tool |
| CN201686399U (en) * | 2010-06-04 | 2010-12-29 | 中冶恒通冷轧技术有限公司 | Single-hook crown block on-line roll changing sling |
| CN203411596U (en) * | 2013-07-24 | 2014-01-29 | 武钢集团昆明钢铁股份有限公司 | Online roll changing gear |
| CN204675602U (en) * | 2015-02-10 | 2015-09-30 | 中冶南方工程技术有限公司 | A kind of novel squeeze roll changing rig |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000044162A (en) * | 1998-07-31 | 2000-02-15 | Hitachi Cable Ltd | Lifting position movable slinging jig |
-
2015
- 2015-02-10 CN CN201510069831.9A patent/CN104649122B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201135996Y (en) * | 2007-12-11 | 2008-10-22 | 武汉钢铁(集团)公司 | Fast roller-replacing device |
| CN201670647U (en) * | 2010-06-04 | 2010-12-15 | 中冶恒通冷轧技术有限公司 | Double-hook crane on-line roll changing hanging tool |
| CN201686399U (en) * | 2010-06-04 | 2010-12-29 | 中冶恒通冷轧技术有限公司 | Single-hook crown block on-line roll changing sling |
| CN203411596U (en) * | 2013-07-24 | 2014-01-29 | 武钢集团昆明钢铁股份有限公司 | Online roll changing gear |
| CN204675602U (en) * | 2015-02-10 | 2015-09-30 | 中冶南方工程技术有限公司 | A kind of novel squeeze roll changing rig |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104649122A (en) | 2015-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104649122B (en) | A kind of novel squeeze roll changing rig | |
| CN204675602U (en) | A kind of novel squeeze roll changing rig | |
| CN204897163U (en) | Interval adjustable hoist compensating beam hoist | |
| CN205873746U (en) | Stable hoisting machine | |
| CN206298269U (en) | Can automatic discharging combination lifting system | |
| CN101862765B (en) | Swing arm type upper sleeve system | |
| CN206751189U (en) | A kind of crane suspension hook group safe to use | |
| CN104014981B (en) | A kind of shaped steel closed type rolling mill guiding mechanism method for dismounting | |
| CN206288853U (en) | A kind of more changing device suitable for vertical miller reduction box high speed tooth bottom end bearing | |
| CN206437781U (en) | Rotatable combined sling | |
| CN105668449A (en) | Indoor crane for architecture decoration | |
| CN205684703U (en) | A kind of simple bull ladle | |
| CN107986152A (en) | Electronic flexibility tentacle Sling for lifting roller | |
| CN104140041B (en) | electric hoist double-beam crane | |
| CN207738307U (en) | Electronic flexibility tentacle Sling for lifting roller | |
| CN104370246B (en) | Body of heater or cell body sinking roller-way erecting device and method | |
| CN201632512U (en) | Swinging arm type upper sleeve device | |
| CN205087799U (en) | Horizontal clamp special lifting device | |
| CN207468037U (en) | A kind of mold installation hanger rail for toy production | |
| CN205575417U (en) | Building side hoist device | |
| CN206427939U (en) | A kind of tower crane | |
| CN206239910U (en) | A kind of cord expander with brake apparatus | |
| CN205346621U (en) | Automatic hoist of tubular pile is carried to tubular pile trade | |
| CN113942926B (en) | Automatic balance adjustment lifting appliance for straightening roller and lifting method thereof | |
| CN206298270U (en) | Self-discharging steel ladle lifting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |