CN107235444A - A kind of cold rolling mill hydraulic cylinder changing device - Google Patents

A kind of cold rolling mill hydraulic cylinder changing device Download PDF

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Publication number
CN107235444A
CN107235444A CN201710413715.3A CN201710413715A CN107235444A CN 107235444 A CN107235444 A CN 107235444A CN 201710413715 A CN201710413715 A CN 201710413715A CN 107235444 A CN107235444 A CN 107235444A
Authority
CN
China
Prior art keywords
hydraulic cylinder
cold rolling
rolling mill
base
drive screw
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.)
Pending
Application number
CN201710413715.3A
Other languages
Chinese (zh)
Inventor
刘凯
尚玉青
陈晓亮
曹立波
张宇
胡滨
牛志刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangang Group Hanbao Iron and Steel Co Ltd
Original Assignee
Hangang Group Hanbao Iron and Steel Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hangang Group Hanbao Iron and Steel Co Ltd filed Critical Hangang Group Hanbao Iron and Steel Co Ltd
Priority to CN201710413715.3A priority Critical patent/CN107235444A/en
Publication of CN107235444A publication Critical patent/CN107235444A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/12Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
    • B66F7/14Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks screw operated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes

Abstract

The present invention relates to a kind of cold rolling mill hydraulic cylinder changing device, belong to cold rolling mill hydraulic cylinder changing equipment technical field.Technical scheme is:Include base(1), drive screw(3), cart jack(4)With lifting track(9), lift track(9)It is vertically fixed on base(1)On, lift track(9)It is provided with cart jack(4), the cart jack(4)With drive screw(3)Threaded connection, the drive screw(3)It is vertically fixed on base(1)On.When changing cold rolling mill hydraulic cylinder, base is firmly installed in top backing up roll first and changed on stool platform, cart jack is withstood hydraulic cylinder, then removes the fixing bolt and outside track of hydraulic cylinder so that hydraulic cylinder is directly fallen on cart jack.Mobile backing roll changes dolly, hydraulic cylinder is taken out of milling train, so as to complete more changing jobs for hydraulic cylinder.Greatly save the repair time, it is to avoid the generation of the fixing bolt and hydraulic cylinder base damage accident of hydraulic cylinder.

Description

A kind of cold rolling mill hydraulic cylinder changing device
Technical field
The present invention relates to a kind of cold rolling mill hydraulic cylinder changing device, especially cold rolling mill HGC hydraulic cylinder changing devices, Belong to metallurgy industry cold rolling mill hydraulic cylinder changing equipment technical field.
Background technology
Cold rolling mill HGC hydraulic cylinders mainly provide depressing force during board rolling, and the maximum rolling force of strip can reach 3300 tons, so big load has a huge impact to the service life of HGC hydraulic cylinders, and general HGC hydraulic cylinders use 5 years just Need to carry out replacing maintenance to it.Because the fixing bolt of HGC hydraulic cylinders is directly installed on mill housing, HGC hydraulic cylinder sheets Body is from focusing on 7 tons or so, and after HGC hydraulic cylinders are installed, due to the influence that hydraulic cylinder is conducted oneself with dignity for a long time, fixing bolt inevitably goes out Existing flexural deformation.Simultaneously because perpendicularity is not accurate enough when mill housing processes HGC hydraulic cylinder fixed bolt holes, cause HGC liquid The fixing bolt flexural deformation of cylinder pressure is excessive.Accompanying drawing 1 is the signal of HGC hydraulic cylinders mounting structure, in figure set one and fixing bolt it Between with being combined into interference fits, very closely.Held out against simultaneously between set one and hydraulic cylinder base.Once there is hydraulic cylinder in installing Fixing bolt will cause the chi between the center of HGC cylinder bodies and fixing bolt center to the inclined situation in hydraulic cylinder side Very little deviation is excessive, finally causes hydraulic cylinder just on two fixing bolts.
When changing HGC hydraulic cylinders, the nut of fixing bolt is unclamped first, through often occurring that hydraulic cylinder can not be leaned on after release The situation that deadweight is fallen.Found after being reinforced using jack pair hydraulic cylinder base, fixing bolt becomes to both sides severe bends Shape.Because being afraid of to damage hydraulic cylinder ear mount, cause hydraulic cylinder to drop accident, and be forced to terminate HGC hydraulic cylinder changings.Send out after analysis Existing, HGC hydraulic cylinders carry out centralized positioning by two fixing bolts, set one and hydraulic cylinder base, due to fixing bolt and set One mating surface is got rusty, the influence of the factor such as fixing bolt flexural deformation and fixing bolt hole machined deflection, and HGC is changed in original design The mode of hydraulic cylinder can not be used, it would be highly desirable to design a kind of new replacing options.
The content of the invention
It is an object of the present invention to provide a kind of cold rolling mill hydraulic cylinder changing device, it is to avoid damages hydraulic cylinder fixing bolt, subtracts Few hydraulic cylinder changing time, solve problem present in background technology.
The technical scheme is that:
A kind of cold rolling mill hydraulic cylinder changing device, comprising base, drive screw, cart jack and lifting track, lifts track It is vertically fixed on base, lifting track is provided with cart jack, and the cart jack is threadedly coupled with drive screw, described to pass Dynamic screw rod is vertically fixed on base.
The cart jack is square frame structure, and the front and rear sides of cart jack are respectively equipped with drive screw and are engaged Tapped drive block, cart jack is respectively arranged on the left side and the right side axletree, and axletree is provided with and lifting track phase The wheel of cooperation.
Hole length is more than the diameter of piston rod of hydraulic cylinder in the square of the cart jack, and less than the cylinder body of hydraulic cylinder Diameter.
The lifting track be between four vertical rails being engaged with cart jack, vertical rail provided with reinforcing plate and Connecting plate.
The two ends of the drive screw are respectively equipped with thrust bearing.
The thrust bearing of the drive screw upper end is fixed on lifting track, and the thrust bearing of drive screw lower end is fixed On base.
The upper end of the drive screw is outer hexagonal structure.
The base is provided with multiple positioning holes, and base is fixed on cold rolling mill backing roll stool by positioning hole.
Using the present invention, when changing cold rolling mill hydraulic cylinder, change stool by the use of existing top backing up roll and be used as Zhi Chengping Platform, is firmly installed in top backing up roll by base first and changes on stool platform, cart jack is withstood hydraulic cylinder, then remove The fixing bolt and outside track of hydraulic cylinder so that hydraulic cylinder is directly fallen on cart jack.Rotary drive screw rod, reduction lifting is small Car and Position of Hydraulic Cylinder, mobile backing roll change dolly, hydraulic cylinder are taken out of milling train, so as to complete more changing jobs for hydraulic cylinder.
The beneficial effects of the invention are as follows:Greatly save the repair time for changing hydraulic cylinder, it is to avoid the fixation spiral shell of hydraulic cylinder The generation of bolt and hydraulic cylinder base damage accident, it is ensured that production is smoothed out.
Brief description of the drawings
Fig. 1 is HGC hydraulic cylinder scheme of installations;
Fig. 2 is stereogram of the present invention;
Fig. 3 is front view of the present invention;
Fig. 4 is side view of the present invention;
Fig. 5 is base stereogram of the present invention;
Fig. 6 is base front view of the present invention;
Fig. 7 is base vertical view of the present invention;
Fig. 8 is cart jack stereogram of the present invention;
In figure:Base 1, bearing gland 2, drive screw 3, cart jack 4, thrust bearing 5, tapped drive block 6, positioning Hole 7, bearing mounting hole 8, lifting track 9, connecting plate install screwed hole 10, reinforcing plate 11, axletree 12, wheel 13, connecting plate 14th, set 1, fixing bolt 22, outside track 23, set 2 24.
Embodiment
Below in conjunction with accompanying drawing, by example, the invention will be further described.
Referring to the drawings 2-8, a kind of cold rolling mill hydraulic cylinder changing device includes base 1, drive screw 3, cart jack 4 With lifting track 9, lifting track 9 is vertically fixed on base 1, and lifting track 9 is provided with cart jack 4, the cart jack 4 It is threadedly coupled with drive screw 3, the drive screw 3 is vertically fixed on base 1.
In the present embodiment, referring to the drawings 8, cart jack 4 is positive square frame structure, and its square hole size is more than The diameter of the piston rod of HGC hydraulic cylinders, and less than the diameter of cylinder of HGC hydraulic cylinders.So ensure that cart jack 4 can be by HGC Hydraulic cylinder jack-up, the piston rod without injuring HGC hydraulic cylinders.
Cart jack 4 each side fixes about the one group ladder axletree 12 with the shaft shoulder arranged, such wheel 13 It can be arranged on cart jack 4.The front and rear sides of cart jack 4 are respectively fixed with tapped drive block 6, eventually through transmission The rotation driving cart jack 4 of screw rod 3 is moved up and down along track 9.
Referring to the drawings 5,6,7,4 positioning holes 7 are provided with the bottom surface of base 1, can ensure that base 1 is firm by positioning hole Be arranged on top backing up roll stool on.The deadweight of base 1 is heavier to reach 7 tons or so, can so ensure that HGC hydraulic cylinders fall the bottom of at The intensity and stability of its structure after seat.
The lifting track 9 being vertically fixed on base 1 is four vertical rails being engaged with cart jack 4, vertical rail Reinforcing plate 11 and connecting plate 14 are provided between road, reinforcing plate 11 is located at the left and right sides of lifting track 9, and reinforcing plate 11 is used to add Gu the intensity between track 9, prevents that vertical direction is deformed after its stress, connecting plate 14 is located at the front and rear sides of lifting track 9, Connecting plate 14 is provided with screwed hole.
Lifting track 9 is used to ensure that cart jack is vertically moved about 4, while ensureing the energy of wheel 13 on cart jack 4 Not double swerve is enough stuck in lifting track 9.
Referring to the drawings 2,3,4, the two ends of drive screw 3 are respectively equipped with thrust bearing, the thrust bearing of the upper end of drive screw 3 It is fixed on connecting plate 14, the thrust bearing of the lower end of drive screw 3 is fixed on base 1, the upper end of drive screw 3 is outer six side Structure, can be by spanner rotary drive screw rod 3, so as to drive the tapped drive block 6 being fixed on cart jack 4 to carry out Move up and down.
Referring to the drawings 2, two sets of identicals lifting tracks 9 and supporting cart jack 4 are left and right symmetrically arranged on base 1, Two HGC hydraulic cylinders of milling train driving side and fore side can be so changed simultaneously.
When changing cold rolling mill hydraulic cylinder, stool is changed as supporting platform by the use of existing top backing up roll, first the bottom of by Seat 1 is firmly installed in top backing up roll and changed on stool platform, cart jack 4 is withstood HGC hydraulic cylinders, then removes HGC liquid The fixing bolt 22 and outside track 23 of cylinder pressure so that HGC hydraulic cylinders are directly fallen on cart jack 4.Rotary drive screw rod 3, drop Low cart jack 4 and Position of Hydraulic Cylinder, mobile backing roll change dolly, HGC hydraulic cylinders are taken out of milling train, so as to complete HGC liquid Cylinder pressure more changes jobs.

Claims (8)

1. a kind of cold rolling mill hydraulic cylinder changing device, it is characterised in that include base(1), drive screw(3), cart jack (4)With lifting track(9), lift track(9)It is vertically fixed on base(1)On, lift track(9)It is provided with cart jack(4), The cart jack(4)With drive screw(3)Threaded connection, the drive screw(3)It is vertically fixed on base(1)On.
2. a kind of cold rolling mill hydraulic cylinder changing device according to claim 1, it is characterised in that the cart jack(4) For square frame structure, cart jack(4)Front and rear sides be respectively equipped with drive screw(3)The tapped biography being engaged Motion block(6), cart jack(4)Be respectively arranged on the left side and the right side axletree(12), axletree(12)It is provided with and lifting track(9) The wheel being engaged.
3. a kind of cold rolling mill hydraulic cylinder changing device according to claim 2, it is characterised in that the cart jack(4) Square in hole length be more than hydraulic cylinder diameter of piston rod, and less than hydraulic cylinder diameter of cylinder.
4. a kind of cold rolling mill hydraulic cylinder changing device according to claim 2, it is characterised in that the lifting track(9) For with cart jack(4)Reinforcing plate is provided between four vertical rails being engaged, vertical rail(11)And connecting plate(14).
5. a kind of cold rolling mill hydraulic cylinder changing device according to claim 1 or 2, it is characterised in that the drive screw (3)Two ends be respectively equipped with thrust bearing.
6. a kind of cold rolling mill hydraulic cylinder for reduction system more changing device according to claim 5, it is characterised in that the transmission spiral shell Bar(3)The thrust bearing of upper end is fixed on lifting track(9)On, drive screw(3)The thrust bearing of lower end is fixed on base(1) On.
7. a kind of cold rolling mill hydraulic cylinder changing device according to claim 6, it is characterised in that the drive screw(3) Upper end be outer hexagonal structure.
8. a kind of cold rolling mill hydraulic cylinder changing device according to claim 1, it is characterised in that the base(1)On set There are multiple positioning holes(7), base(1)Pass through positioning hole(7)It is fixed on cold rolling mill backing roll stool.
CN201710413715.3A 2017-06-05 2017-06-05 A kind of cold rolling mill hydraulic cylinder changing device Pending CN107235444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710413715.3A CN107235444A (en) 2017-06-05 2017-06-05 A kind of cold rolling mill hydraulic cylinder changing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710413715.3A CN107235444A (en) 2017-06-05 2017-06-05 A kind of cold rolling mill hydraulic cylinder changing device

Publications (1)

Publication Number Publication Date
CN107235444A true CN107235444A (en) 2017-10-10

Family

ID=59984850

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710413715.3A Pending CN107235444A (en) 2017-06-05 2017-06-05 A kind of cold rolling mill hydraulic cylinder changing device

Country Status (1)

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CN (1) CN107235444A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111015580A (en) * 2020-01-07 2020-04-17 山东建筑大学 Horizontal roller hydraulic cylinder replacing tool for section steel rolling mill and using method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU65450U1 (en) * 2007-04-19 2007-08-10 Валерий Васильевич Салихов STAND FOR DISASSEMBLY-ASSEMBLY OF THE FRAME OF THE CAR TROLLEY OF THE MOTOR WAGON OF THE ELECTRIC TRAIN
CN102601600A (en) * 2011-12-09 2012-07-25 首钢总公司 HGC (hydraulic gap control) hydraulic cylinder replacement system
CN202785480U (en) * 2012-07-17 2013-03-13 白智元 Portable lifting mover
CN103863970A (en) * 2014-04-01 2014-06-18 东莞市良合机械设备有限公司 Leveling slicing machine feeding lifting frame
CN204725106U (en) * 2015-04-29 2015-10-28 常州宝菱重工机械有限公司 Change the device of rolling mill pressing cylinder
US20160039646A1 (en) * 2014-08-07 2016-02-11 Ryan W. Knapp Low Profile Drop Table
CN106276704A (en) * 2016-10-24 2017-01-04 中国兵器装备集团自动化研究所 A kind of vehicle-mounted Two axle drive lifting device
CN206940344U (en) * 2017-06-05 2018-01-30 邯钢集团邯宝钢铁有限公司 A kind of cold rolling mill hydraulic cylinder changing device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU65450U1 (en) * 2007-04-19 2007-08-10 Валерий Васильевич Салихов STAND FOR DISASSEMBLY-ASSEMBLY OF THE FRAME OF THE CAR TROLLEY OF THE MOTOR WAGON OF THE ELECTRIC TRAIN
CN102601600A (en) * 2011-12-09 2012-07-25 首钢总公司 HGC (hydraulic gap control) hydraulic cylinder replacement system
CN202785480U (en) * 2012-07-17 2013-03-13 白智元 Portable lifting mover
CN103863970A (en) * 2014-04-01 2014-06-18 东莞市良合机械设备有限公司 Leveling slicing machine feeding lifting frame
US20160039646A1 (en) * 2014-08-07 2016-02-11 Ryan W. Knapp Low Profile Drop Table
CN204725106U (en) * 2015-04-29 2015-10-28 常州宝菱重工机械有限公司 Change the device of rolling mill pressing cylinder
CN106276704A (en) * 2016-10-24 2017-01-04 中国兵器装备集团自动化研究所 A kind of vehicle-mounted Two axle drive lifting device
CN206940344U (en) * 2017-06-05 2018-01-30 邯钢集团邯宝钢铁有限公司 A kind of cold rolling mill hydraulic cylinder changing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111015580A (en) * 2020-01-07 2020-04-17 山东建筑大学 Horizontal roller hydraulic cylinder replacing tool for section steel rolling mill and using method
CN111015580B (en) * 2020-01-07 2022-02-01 山东建筑大学 Horizontal roller hydraulic cylinder replacing tool for section steel rolling mill and using method

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