CN103084406B - Four-roll reversible type rolling mill pressure head installing structure - Google Patents

Four-roll reversible type rolling mill pressure head installing structure Download PDF

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Publication number
CN103084406B
CN103084406B CN201310070972.3A CN201310070972A CN103084406B CN 103084406 B CN103084406 B CN 103084406B CN 201310070972 A CN201310070972 A CN 201310070972A CN 103084406 B CN103084406 B CN 103084406B
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CN
China
Prior art keywords
pressure head
slide block
pressing plate
locating hole
sliding block
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Active
Application number
CN201310070972.3A
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Chinese (zh)
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CN103084406A (en
Inventor
石宝宁
刘彦劼
肖肇充
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Chongqing Iron and Steel Co Ltd
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Chongqing Iron and Steel Group Co Ltd
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Priority to CN201310070972.3A priority Critical patent/CN103084406B/en
Publication of CN103084406A publication Critical patent/CN103084406A/en
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Publication of CN103084406B publication Critical patent/CN103084406B/en
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Abstract

The invention discloses a four-roll reversible type rolling mill pressure head installing structure. The four-roll reversible type rolling mill pressure head installing structure comprises pressure head installing end plates which are located at the two ends of the pressure head and used for installing the pressure head, two opposite pressing plates are fixedly connected on the upper surfaces of the pressure head installing end plates, and the pressing plates are located on outside positions above a hooking circular truncated cone on a screw rod. The four-roll reversible type rolling mill pressure head installing structure is characterized in that the diameter of a circle in which the inner side face of each pressing plate is placed is larger than that of the outer circle of the hooking circular truncated cone, the lower surface of the pressing plate is provided with a sliding groove along the radial direction, a hooking positioning hole is formed in the sliding groove, a sliding block is further arranged in the sliding groove, a sliding block positioning hole is formed in the sliding block and a positioning bolt is arranged in the sliding block positioning hole in a matching mode, and the distance between the sliding block positioning hole and an inner side edge of the sliding block is longer than that between the hooking positioning hole and a side edge of the hooking circular truncated cone on the screw rod. The pressure head is conveniently serviced and changed, and the device is prevented from damaging when a phenomenon that electric interlock lags occurs, the normal running of the device can be ensured, and the service life of the device is prolonged.

Description

A kind of four-high reversing mill pressure head mounting structure
Technical field
The present invention relates to a kind of four-high reversing mill, especially a kind of four-high reversing mill pressure head mounting structure.
Background technology
In steel plant, four-high reversing mill is the equipment that a kind of roughing finish rolling all can adopt.In four-high reversing mill, top working roll and the bottom working roll of its main member for rolling for being oppositely arranged up and down, top working roll top arranges upper backup roll, and bottom working roll below arranges lower backing roll, and upper backup roll top is connected with screw mandrel by pressure head.When wherein pressure head is positioned at and applies downforce to the former between milling train upper backup roll and screw mandrel and as the latter, the transmission member of power, for removing revolving force, only retains pressure and the downforce of screw mandrel is more balancedly applied on upper backup roll.
In four-high reversing mill, existing a kind of pressure head mounting structure as shown in Figure 1, comprise and be positioned at pressure head 1 two ends and for the pressure head of pressure head 1 is installed, end plate 2 be installed, pressure head is installed end plate 2 upper surfaces and is adopted bolt to be fixedly connected with two pressing plates that are oppositely arranged 3, as shown in Fig. 1 and Fig. 2 and Fig. 3, pressing plate 3 integral body are annular slab, and of being positioned on screw mandrel 4 of pressing plate 3 articulates round platform 5 tops, and pressing plate 3 inner sides have one and extend to screw mandrel and articulate the part directly over round platform 5.Pressing plate 3 and screw mandrel articulate between round platform 5 and leave gap.
This existing pressure head mounting structure.When needs dismounting and change pressure head, pressure head and pressure head are installed the pressured plate of end plate and are articulated in screw mandrel and articulate on round platform, like this can so that work high above the ground pressure head is changed, can be very convenient quick so that change pressure head.Meanwhile, in normal work steel rolling, by the lifting of main equalizer bar, adjust upper backup roll, the interlock of upper backup roll while keeping screw mandrel to move upward, make to articulate between round platform and have all the time gap on pressing plate and screw mandrel, therefore there is not frictional force between pressing plate and screw mandrel, pressure head can not spin.
But the four-high reversing mill of this structure is found when work, usually can not catch up with because electric interlock reaction appears in the reasons such as electrical part is aging, there is interlock hysteresis.Be after screw mandrel is depressed when lifting, main equalizer bar does not catch up with the rotation of screw mandrel, screw mandrel lower end will depart from pressure head.So just cause pressing plate and screw mandrel to articulate round platform and contact and produce friction, and then cause that pressure head spins, destroy various fluid pressure lines and the dust cover on pressure head, arranged.Make to produce and pause, need the long period to repair.
Summary of the invention
For the deficiencies in the prior art, technical problem to be solved by this invention is, how to provide a kind of and can either conveniently overhaul replacing pressure head, can when there is electric interlock hysteresis, avoid device damage again, the normal operation of assurance equipment, the four-high reversing mill pressure head mounting structure in extension device service life.
In order to solve the problems of the technologies described above, in the present invention, adopted following technical scheme:
A kind of four-high reversing mill pressure head mounting structure, comprise and be positioned at pressure head two ends and for the pressure head of pressure head is installed, end plate be installed, pressure head is installed end plate upper surface and is adopted bolt to be fixedly connected with two pressing plates that are oppositely arranged, pressing plate integral body is annular slab, one of being positioned on screw mandrel of pressing plate articulates round platform upper outer position, it is characterized in that, pressing plate medial surface place circular diameter is greater than and articulates round platform outside diameter, pressing plate lower surface has been disposed radially a chute, in chute, be provided with one and articulate locating hole, in chute, be also provided with a slide block, on slide block, be provided with slide block locating hole and in slide block locating hole, be combined with a fastening screw, described slide block locating hole is greater than and articulates locating hole articulate the distance between round platform side to screw mandrel to distance between slide block inner side edge.
Four-high reversing mill pressure head mounting structure of the present invention, when normal work is used, draw back in the chute on pressing plate slide block inner side, because being greater than, pressing plate medial surface place circular diameter articulates round platform outside diameter, therefore pressing plate with articulate round platform and do not have intersection in short transverse, in screw mandrel uphill process when there is electric interlock hysteresis, pressing plate also not can with articulate round platform and contact, can not produce the pressure head accident of spinning and cause equipment to be damaged, guarantee smooth and easy the carrying out of work.Simultaneously, when pressure head is changed in needs maintenance, only slide block need be released to the inside and adopted fastening screw to insert slide block locating hole and articulate locating hole locates slide block, because slide block locating hole is greater than and articulates locating hole articulate the distance between round platform side to screw mandrel to distance between slide block inner side edge, therefore have one behind slide block location, be positioned at the part that articulates round platform top, make pressure head to be articulated in articulating on round platform of screw mandrel by slide block, and then can overhaul easily.
In sum, the present invention can either conveniently overhaul replacing pressure head, can when there is electric interlock hysteresis, avoid device damage again, guarantees the normal operation of equipment, extension device service life.Simultaneously the present invention can directly transform enforcements on existing equipment, also have simple in structure, the advantage such as enforcement facilitates, and implementation cost is cheap.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing four-high reversing mill pressure head mounting structure described in background technology.
Fig. 2 is the structural representation of independent pressing plate in Fig. 1.
Fig. 3 is the A-A view of Fig. 2.
Fig. 4 is the structural representation of four-high reversing mill pressure head mounting structure of the present invention.
Fig. 5 is the structural representation of independent pressing plate in four-high reversing mill pressure head mounting structure of the present invention.
Fig. 6 is the A-A view of Fig. 5.
Fig. 7 is the structural representation of independent slide block in four-high reversing mill pressure head mounting structure of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Shown in following Fig. 4-Fig. 7, a kind of four-high reversing mill pressure head mounting structure, comprise and be positioned at pressure head 1 two ends and for the pressure head of pressure head 1 is installed, end plate 2 be installed, pressure head is installed end plate 2 upper surfaces and is adopted bolt to be fixedly connected with two pressing plates that are oppositely arranged 3, pressing plate 3 is whole is annular slab (part that annular week makes progress), one of being positioned on screw mandrel 4 of pressing plate 3 articulates round platform 5 upper outer positions, pressing plate 3 medial surface place circular diameters are greater than and articulate round platform 5 outside diameters, pressing plate 3 lower surfaces have been disposed radially a chute 6, in chute 6, be provided with one and articulate locating hole 7, in chute 6, be also provided with a slide block 8, on slide block 8, be provided with slide block locating hole 9 and in slide block locating hole 9, be combined with a fastening screw (fastening screw does not show), described slide block locating hole is greater than and articulates locating hole articulate the distance between round platform side to screw mandrel to distance between slide block inner side edge.
Above-mentioned four-high reversing mill pressure head mounting structure, when normal work is used, draw back in the chute on pressing plate slide block inner side, and pressing plate can not contact with articulating round platform, and pressure head is directly pressed on upper backup roll, can normally use.When needs overhaul replacing pressure head, to release and lean on fastening screw to insert slide block locating hole and articulate locating hole slide block inner side slide block is located, pressure head can be articulated in articulating on round platform of screw mandrel by pressured plate, conveniently pressure head is overhauled to replacing.
In addition, while specifically implementing, as optimization, described in articulate locating hole and preferably adopt screwed hole, described fastening screw preferably adopts has the externally threaded fastening screw of coupling, like this by being threaded, can make its connection more reliable, makes to articulate more reliable and more stable.Meanwhile, can also in chute, articulate second locating hole of locating hole arranged outside, while making work, after slide retraction chute, can lean on fastening screw and coordinating of the second locating hole to position, avoid sliding.

Claims (1)

1. a four-high reversing mill pressure head mounting structure, comprise and be positioned at pressure head two ends and for the pressure head of pressure head is installed, end plate be installed, pressure head is installed end plate upper surface and is adopted bolt to be fixedly connected with two pressing plates that are oppositely arranged, pressing plate integral body is annular slab, one of being positioned on screw mandrel of pressing plate articulates round platform upper outer position, it is characterized in that, pressing plate medial surface place circular diameter is greater than and articulates round platform outside diameter, pressing plate lower surface has been disposed radially a chute, in chute, be provided with one and articulate locating hole, in chute, be also provided with a slide block, on slide block, be provided with slide block locating hole and in slide block locating hole, be combined with a fastening screw, described slide block locating hole is greater than and articulates locating hole articulate the distance between round platform side to screw mandrel to distance between slide block inner side edge.
CN201310070972.3A 2013-03-06 2013-03-06 Four-roll reversible type rolling mill pressure head installing structure Active CN103084406B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310070972.3A CN103084406B (en) 2013-03-06 2013-03-06 Four-roll reversible type rolling mill pressure head installing structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310070972.3A CN103084406B (en) 2013-03-06 2013-03-06 Four-roll reversible type rolling mill pressure head installing structure

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CN103084406A CN103084406A (en) 2013-05-08
CN103084406B true CN103084406B (en) 2014-11-19

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103447307B (en) * 2013-09-07 2016-06-01 鞍钢股份有限公司 A kind of rolling mill press head protection method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB942128A (en) * 1960-04-13 1963-11-20 Stephen William Wheeler Automatic control for adjusting rolling mills
US4976128A (en) * 1989-07-06 1990-12-11 Hitachi, Ltd. Rolling mill and method of exchanging rolls of rolling mill
JP3315643B2 (en) * 1998-03-25 2002-08-19 川崎製鉄株式会社 Screw type rolling down machine and rolling mill
JP2000079408A (en) * 1998-09-07 2000-03-21 Nippon Steel Corp Device for recovering lubricating oil in rolling reduction device of rolling mill
CN202015739U (en) * 2010-12-21 2011-10-26 天津天重中直科技工程有限公司 Novel pressing screw of plate strip rolling mill
CN202343573U (en) * 2011-11-29 2012-07-25 洛阳璋泰非标机械有限公司 Roller rolling reduction adjusting mechanisms
CN202555593U (en) * 2012-03-19 2012-11-28 无锡桥联重工设计研究院有限公司 Installation and fixing device of pressure type automatic gain control (AGC) vat

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PB01 Publication
C06 Publication
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C10 Entry into substantive examination
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C14 Grant of patent or utility model
TR01 Transfer of patent right

Effective date of registration: 20190219

Address after: 401220 No. 1, Gangcheng Road, Changshou District, Chongqing

Patentee after: Chongqing Iron and Steel Co., Ltd.

Address before: 400080 No. 1, three village, Dadun three, Dadukou District, Chongqing

Patentee before: Chongqing Iron & Steel (Group) Co., Ltd.

TR01 Transfer of patent right
CP02 Change in the address of a patent holder

Address after: No.2 Jiangnan Avenue, Jiangnan street, Changshou District, Chongqing 401220

Patentee after: CHONGQING IRON & STEEL Co.,Ltd.

Address before: 401220 No. 1, Gangcheng Road, Changshou District, Chongqing

Patentee before: CHONGQING IRON & STEEL Co.,Ltd.

CP02 Change in the address of a patent holder