CN116788973A - Rolling mill screw-down screw rod lifting adjusting device and use method - Google Patents

Rolling mill screw-down screw rod lifting adjusting device and use method Download PDF

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Publication number
CN116788973A
CN116788973A CN202310939866.8A CN202310939866A CN116788973A CN 116788973 A CN116788973 A CN 116788973A CN 202310939866 A CN202310939866 A CN 202310939866A CN 116788973 A CN116788973 A CN 116788973A
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CN
China
Prior art keywords
screw
lifting
screw rod
rolling mill
fastening
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
CN202310939866.8A
Other languages
Chinese (zh)
Inventor
高伟
刘宝安
张艳芳
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.)
MCC Tiangong Group Corp Ltd
Original Assignee
MCC Tiangong Group Corp 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 MCC Tiangong Group Corp Ltd filed Critical MCC Tiangong Group Corp Ltd
Priority to CN202310939866.8A priority Critical patent/CN116788973A/en
Publication of CN116788973A publication Critical patent/CN116788973A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
    • 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
    • B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
    • 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
    • B66C1/62—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 comprising article-engaging members of a shape complementary to that of the articles to be handled
    • B66C1/66—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 comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

The invention relates to the technical field of adjusting devices, in particular to a rolling mill screw-down screw rod hoisting adjusting device and a using method thereof. The screw rod is mainly used for hoisting and adjusting, when the screw rod is used for hoisting and adjusting, the perpendicularity of the screw rod is difficult to fine tune, the screw rod is required to be adjusted repeatedly for many times, the construction perpendicularity is achieved, the time for hoisting and replacing the pressing equipment is long, the replacement efficiency is low, and the problem of more manpower input is solved, and the following technical scheme is provided: comprising the following steps: pressing down the screw rod; the hoisting assembly is used for conveniently adjusting the verticality after the screw-down screw rod is hoisted, and is arranged at the top of the screw-down screw rod; the lower part of the screw-down screw rod is provided with a screw-down nut, and the screw-down screw rod and the hoisting assembly are all required to be installed in a rolling mill for cooperation. The invention has simple and practical design, can realize the adjustment of verticality for construction quickly and conveniently, thereby greatly improving the construction efficiency and being convenient for popularization.

Description

Rolling mill screw-down screw rod lifting adjusting device and use method
Technical Field
The invention relates to the technical field of adjusting devices, in particular to a rolling mill screw-down screw rod hoisting adjusting device and a using method thereof.
Background
The rolling mill pressing device is key equipment of rolling mill equipment in a hot rolling production line, and mainly comprises a pressing screw rod, a pressing nut, a pressing hydraulic cylinder and a transmission device part, so that the roll gap of the rolling mill is accurately controlled. The screw-down device is impacted and torqued greatly, so that the screw-down device needs to be replaced periodically and frequently, and is positioned at the central part of the mill housing, the assembled structure is complex, particularly, the weight of the screw-down screw rod and the screw-down nut after being assembled reaches about 6 tons, the length is 3.6 meters, and the assembled variable cross-section structure with the diameter of 900 x 500 is difficult to install in the screw-down hole of the mill housing needing precise matching; the screw rod can not be directly hung downwards from the rolling mill housing by the limitation of the lifting height of the travelling crane, and only the screw rod combination structure can horizontally move from the lower part of the rolling mill housing window to the inside of the rolling mill, and the verticality of the screw rod is regulated and lifted by utilizing the travelling crane to be matched with two chain blocks in the inside of the rolling mill.
When the chain hoist is used for hoisting and adjusting operation, the perpendicularity of the screw rod is difficult to fine tune, and the adjustment needs to be repeated for many times so as to achieve the perpendicularity of construction. The operation time for hoisting and replacing the pressing equipment is long, the replacement efficiency is low, and the input of manpower is more. In view of the above, we propose a rolling mill screw-down screw lifting adjusting device and a using method thereof.
Disclosure of Invention
The invention aims at solving the problems of long operation time, low replacement efficiency and more labor investment of hoisting and replacement of pressing equipment caused by the fact that the perpendicularity of a screw rod is difficult to fine tune and needs to be repeatedly adjusted for multiple times to achieve the perpendicularity of construction when the operation of hoisting and adjustment by using a chain block in the background technology is carried out, and provides a device for hoisting and adjusting the screw rod under rolling mill and a using method thereof.
In one aspect, the invention provides a rolling mill screw down lead screw lifting adjustment device, comprising:
pressing down the screw rod;
the hoisting assembly is used for conveniently adjusting the verticality after the screw-down screw rod is hoisted, and is arranged at the top of the screw-down screw rod;
a pressing nut is arranged below the pressing screw rod, and the pressing screw rod and the hoisting assembly are required to be arranged in a rolling mill for cooperation;
the fastening fixing baffle plate is used for fixing the pressing nut after being installed on the rolling mill, and the fastening fixing baffle plate is arranged at the bottom of the pressing nut.
Optionally, a plurality of groups of mounting grooves are formed in the top of the screw-down rod and used for mounting the hoisting assembly.
Optionally, the hoist and mount subassembly includes the lug, the bottom fixedly connected with hanging scaffold of lug, the top of hanging scaffold is equipped with multiunit adjusting nut, be provided with fastening bolt in the adjusting nut.
Optionally, a lifting hole is formed in the lifting lug.
Optionally, the adjusting nut is in threaded connection with a fastening bolt, and the fastening bolt is in threaded connection with the mounting groove.
Optionally, the hanging scaffold is made of a thick steel plate, and two groups of through holes which are positioned on two sides of the lifting lug and symmetrically arranged along the central line of the hanging scaffold are formed in the hanging scaffold and are used for penetrating the fastening bolts.
Optionally, a positioning bolt is installed on the fastening and fixing baffle, and the positioning bolt penetrates through the fastening and fixing baffle to be in threaded connection with the pressing nut.
Optionally, a fixing bolt is further installed on the fastening fixing baffle, and the fixing bolt penetrates through the fastening fixing baffle to be in threaded connection with the rolling mill.
Optionally, a wire rope is connected in the lifting hole, and one end, far away from the lifting hole, of the wire rope is connected with a crane hook.
On the other hand, the invention provides a using method of a rolling mill screw-down screw rod hoisting adjusting device, which comprises the following steps:
firstly, welding a lifting lug (21) in the lifting assembly (2) and a lifting disc (22) into a whole, simultaneously connecting an adjusting nut (23) to a fastening bolt (24) in a threaded manner, and rotating the adjusting nut (23) to enable the length of the fastening bolt (24) to be suitable;
secondly, two groups of fastening bolts (24) penetrate through holes (221) formed in the hanging scaffold (22), so that one end of each fastening bolt (24) is connected to an installation groove (11) formed in the top of the screw-down screw rod (1) in a threaded manner, and meanwhile, the fastening bolts (24) are screwed down;
thirdly, driving a crane to the vicinity, placing the crane lifting hook (7), selecting a steel wire rope (6) with a proper length and connected with a lifting hole (211) formed in the lifting lug, penetrating the steel wire rope (6) through the lifting hole (211), and sleeving the steel wire rope (6) on the crane lifting hook (7);
step four, a crane drives the crane lifting hook (7) to move upwards, so that the lifting assembly (2) is lifted, the screw-down screw rod (1) is lifted at the same time, the screw-down nut (3) is conveniently mounted on the screw-down screw rod (1) at the moment, and the fastening fixed baffle plate (5) is mounted at the bottom of the screw-down nut (3) through the positioning bolt (51);
turning the adjusting nut (23) by using a spanner, so that the adjusting nut (23) moves upwards, the length of the fastening bolt (24) is changed, the gradient of the screw-down screw (1) is changed, and the screw-down screw (1) is in a vertical state;
step six, driving the screw-down screw rod (1) to move by a crane, lifting and conveying the whole screw-down screw rod (1) and the screw-down nut (3) and penetrating the whole screw-down screw rod and the screw-down nut into a screw-down hole of the rolling mill (4) slowly;
step seven, installing the fixing bolts (52) so that the fastening fixing baffle plate (5) is fixed at the bottom of the screw-down nut (3) and fixedly connected with the rolling mill (4), and installing the screw-down screw rod (1) and the screw-down nut (3) is completed at the moment;
and eighth, detaching the fastening bolts (24) in the hoisting assembly (2) to finish hoisting work of pressing down the screw rod (1).
Compared with the prior art, the invention has the following beneficial technical effects:
1. according to the invention, the hoisting assembly and the screw-down screw rod can be firmly fixed through the fastening bolts arranged in the hoisting assembly; through the lifting holes formed in the lifting lugs, the steel wire rope can penetrate through the lifting holes so as to conveniently lift the whole body; the length of the fastening bolt can be adjusted through the adjusting nut in threaded connection with the fastening bolt, so that the inclination of the screw rod is adjusted, and the perpendicularity during integral hoisting is facilitated;
2. according to the invention, the fastening and fixing baffle plate can be fixed at the bottom of the pressing nut through fastening the positioning bolt arranged in the fixing baffle plate, and the pressing screw rod and the pressing nut support the bottom after the installation is completed through fastening the fixing bolt arranged in the fixing baffle plate, so that the installation is stable and correct;
in conclusion, the invention has the advantages of simple and practical design, and can realize the adjustment of the perpendicularity of construction quickly and conveniently, thereby greatly improving the construction efficiency and being convenient for popularization.
Drawings
FIG. 1 is a front view of a rolling mill screw down lead screw lifting adjustment device;
FIG. 2 is a schematic elevational cross-sectional view of the entire structure being lifted;
FIG. 3 is a schematic elevational cross-sectional view of a hoist assembly;
FIG. 4 is a schematic side view in cross-section of a hoist assembly;
FIG. 5 is a schematic view of a cross-sectional elevation view of a lifting lug;
FIG. 6 is a schematic side view in cross-section of a shackle;
FIG. 7 is a top view of the hanging scaffold;
FIG. 8 is a schematic elevational cross-sectional view of a hanging scaffold;
FIG. 9 is a top view of the hoist assembly;
fig. 10 is a schematic view of the front sectional structure after the installation is completed.
Reference numerals:
1. pressing down the screw rod; 11. a mounting groove;
2. hoisting the assembly; 21. lifting lugs; 211. a hoisting hole; 22. a hanging scaffold; 221. a through hole; 23. adjusting the nut; 24. a fastening bolt;
3. pressing down the nut;
4. a rolling mill;
5. fastening and fixing the baffle; 51. positioning bolts; 52. a fixing bolt;
6. a wire rope; 7. and a crane hook.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings and specific embodiments.
Example 1
As shown in fig. 1-9, the invention provides a rolling mill screw-down screw lifting adjusting device, which comprises:
the screw rod 1 is pressed down, the screw rod 1 is an extremely important part of the pressing device, and the prior art is adopted, so that excessive description is omitted in the scheme. Two more mounting grooves 11 are formed in the top of the screw rod 1 and used for mounting the hoisting assembly 2, internal threads are arranged on the inner wall of the mounting grooves 11, so that the mounting and the dismounting are facilitated, and the two groups of mounting grooves 11 are symmetrically distributed along the center line.
A hoist and mount subassembly 2 for being convenient for adjust the straightness that hangs down after screw 1 lifts by crane, hoist and mount subassembly 2 are installed at screw 1's top down, and hoist and mount subassembly 2 is used for screw 1 down after being lifted by crane, thereby can change screw 1's straightness that hangs down through adjusting hoist and mount subassembly 2 for screw 1 is convenient for install down. The lifting assembly 2 comprises a lifting lug 21, wherein a lifting hole 211 is formed in the lifting lug 21 and used for integrally lifting the lifting assembly 2 through the lifting hole 211, so that the screw-down screw 1 fixedly connected with the lifting assembly 2 is lifted. The bottom fixedly connected with hanging scaffold 22 of lug 21, lug 21 welds in hanging scaffold 22 central point put, is connected as an organic wholely with hanging scaffold 22. The hanging scaffold 22 is made of a thick steel plate, and two groups of through holes 221 which are symmetrically arranged along the central line of the hanging scaffold 22 and are positioned on two sides of the lifting lug 21 are formed in the hanging scaffold 22. Two groups of adjusting nuts 23 are arranged above the hanging scaffold 22, and the adjusting nuts 23 are arranged above the through holes 221. The adjusting nut 23 is provided with a fastening bolt 24, and the adjusting nut 23 is in threaded connection with the fastening bolt 24 and is used for adjusting the length of the fastening bolt 24 after the adjusting nut 23 rotates. The through hole 221 is slidably connected with the fastening bolt 24 for penetrating the fastening bolt 24 such that one end of the fastening bolt 24 can be installed into the installation groove 11 through the hanging scaffold 22, and the fastening bolt 24 is screw-connected in the installation groove 11 such that the hanging assembly 2 is integrally fixed at the top of the screw-down shaft 1.
Furthermore, a pressing nut 3 is installed below the pressing screw 1, and the pressing nut 3 is also an important component of the pressing device, and in this scheme, too much description is omitted. The screw-down rod 1 and the hoisting assembly 2 are all required to be installed in the rolling mill 4 for cooperation.
The hoisting hole 211 is connected with a steel wire rope 6, one end, far away from the hoisting hole 211, of the steel wire rope 6 is connected with a crane lifting hook 7, so that the crane drives the crane lifting hook 7 to move, and the hoisting assembly 2 is integrally hoisted through the steel wire rope 6, so that the screw rod 1 is conveniently hoisted under pressure.
In the present embodiment, the lifting lug 21 and the hanging scaffold 22 are first welded as one body, the adjusting nut 23 is first screwed to the fastening bolt 24, and the adjusting nut 23 is turned so that the length of the fastening bolt 24 is appropriate. Two groups of fastening bolts 24 are inserted through holes 221 formed in the hanging scaffold 22, so that one end of each fastening bolt 24 is connected with the corresponding mounting groove 11 formed in the top of the screw-down screw 1 in a threaded manner, and the fastening bolts 24 are screwed down. At this time, the crane is driven to the vicinity, the crane hook 7 is put down, the wire rope 6 with a proper length is selected, the wire rope 6 passes through the lifting hole 211 formed on the lifting lug 21, and then the wire rope 6 is sleeved on the crane hook 7. At this time, the travelling crane drives the travelling crane lifting hook 7 to move upwards, so that the lifting assembly 2 is lifted, and the screw-down screw 1 is lifted at the same time, and at this time, the screw-down nut 3 is conveniently mounted on the screw-down screw 1.
At this time, the screw-down screw 1 has a non-vertical condition, and the adjusting nut 23 can be rotated by using a wrench, so that the adjusting nut 23 moves upwards, the length of the fastening bolt 24 is changed, the inclination of the screw-down screw 1 is changed, the screw-down screw 1 can be vertically lifted, the construction is convenient, the verticality adjustment is conveniently realized for the construction, and the construction efficiency is high.
Example two
As shown in fig. 1, 2 and 10, based on the embodiment 1,
the fastening fixing baffle plate 5 is used for fixing the pressing nut 3 after being installed on the rolling mill 4, the fastening fixing baffle plate 5 is arranged at the bottom of the pressing nut 3, the positioning bolt 51 is installed on the fastening fixing baffle plate 5, the positioning bolt 51 penetrates through the fastening fixing baffle plate 5 to be in threaded connection with the pressing nut 3, and the positioning bolt 51 is used for fixing the position of the fastening fixing baffle plate 5. The fastening fixed baffle 5 is also provided with a fixing bolt 52, the fixing bolt 52 penetrates through the fastening fixed baffle 5 to be in threaded connection with the rolling mill 4, and the fixing bolt 52 is used for preventing the pressing nut 3 from falling off after being installed after being connected with the rolling mill 4. The hoisting hole 211 is connected with a steel wire rope 6, one end, far away from the hoisting hole 211, of the steel wire rope 6 is connected with a crane lifting hook 7, so that the crane drives the crane lifting hook 7 to move, and the hoisting assembly 2 is integrally hoisted through the steel wire rope 6, so that the screw rod 1 is conveniently hoisted under pressure.
In this embodiment, after the whole of the screw-down rod 1 and the screw-down nut 3 is lifted, the screw-down rod 1 is gradually inserted into the screw-down hole of the rolling mill 4. The fixing bolts 52 are installed so that the fastening fixing baffle 5 is fixed to the bottom of the screw-down nut 3 and fixedly connected to the rolling mill 4, and at this time, the installation of the screw-down screw 1 and the screw-down nut 3 is completed. And (5) removing the fastening bolts 24 in the hoisting assembly 2 to finish hoisting work of pressing down the screw rod 1.
The application method of the rolling mill screw-down screw rod hoisting adjusting device comprises the following steps:
firstly, welding a lifting lug 21 and a hanging scaffold 22 into a whole, simultaneously connecting an adjusting nut 23 to a fastening bolt 24 in a threaded manner, and rotating the adjusting nut 23 to enable the length of the fastening bolt 24 to be suitable;
step two, two groups of fastening bolts 24 penetrate through holes 221 formed in the hanging scaffold 22, so that one end of each fastening bolt 24 is connected to a mounting groove 11 formed in the top of the screw-down screw 1 in a threaded manner, and meanwhile, the fastening bolts 24 are screwed down;
thirdly, driving the crane to the vicinity, putting down the crane lifting hook 7, selecting a steel wire rope 6 with proper length, enabling the steel wire rope 6 to pass through a lifting hole 211 formed in the lifting lug 21, and sleeving the steel wire rope 6 on the crane lifting hook 7;
step four, the crane drives the crane lifting hook 7 to move upwards, so that the lifting assembly 2 is lifted, the screw-down screw 1 is lifted at the same time, the screw-down nut 3 is conveniently mounted on the screw-down screw 1 at the moment, and the fastening fixed baffle 5 is simultaneously mounted at the bottom of the screw-down nut 3 through the positioning bolt 51;
step five, using a spanner to rotate the adjusting nut 23, so that the adjusting nut 23 moves upwards, thereby changing the length of the fastening bolt 24, changing the inclination of the screw-down screw 1, and enabling the screw-down screw 1 to be in a vertical state;
step six, the travelling crane drives the screw-down screw rod 1 to move, and the whole screw-down screw rod 1 and the screw-down nut 3 are lifted and slowly penetrated into the screw-down hole of the rolling mill 4;
step seven, mounting the fixing bolts 52, so that the fastening and fixing baffle plate 5 is fixed at the bottom of the screw-down nut 3 and is fixedly connected with the rolling mill 4, and at the moment, the mounting of the screw-down screw rod 1 and the screw-down nut 3 is completed;
and step eight, dismantling the fastening bolts 24 in the hoisting assembly 2 to finish hoisting work of pressing down the screw rod 1.
The above-described embodiments are merely a few alternative embodiments of the present invention, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present invention and the related teachings of the above-described embodiments.

Claims (10)

1. A rolling mill screw-down lead screw hoist and mount adjusting device, characterized by comprising:
pressing down the screw rod (1);
the hoisting assembly (2) is used for conveniently adjusting verticality after the screw-down screw rod (1) is hoisted, and the hoisting assembly (2) is arranged at the top of the screw-down screw rod (1);
a pressing nut (3) is arranged below the pressing screw rod (1), and the pressing screw rod (1) and the hoisting assembly (2) are required to be arranged in the rolling mill (4) for matching use;
and the fastening fixing baffle plate (5) is used for fixing the pressing nut (3) after being installed on the rolling mill (4), and the fastening fixing baffle plate (5) is arranged at the bottom of the pressing nut (3).
2. The rolling mill screw-down screw lifting adjusting device according to claim 1, wherein a plurality of groups of mounting grooves (11) are formed in the top of the screw-down screw (1) for mounting lifting components (2).
3. The rolling mill screw-down screw lifting adjustment device according to claim 2, wherein the lifting assembly (2) comprises a lifting lug (21), a lifting disc (22) is fixedly connected to the bottom of the lifting lug (21), a plurality of groups of adjustment nuts (23) are arranged above the lifting disc (22), and fastening bolts (24) are arranged in the adjustment nuts (23).
4. A rolling mill screw down screw lifting adjustment device according to claim 3, characterized in that the lifting eye (21) is provided with a lifting hole (211).
5. A rolling mill screw down screw lifting adjustment device according to claim 3, characterized in that the adjustment nut (23) is screwed with a fastening bolt (24), the fastening bolt (24) being screwed in the mounting groove (11).
6. A rolling mill screw-down screw lifting adjusting device according to claim 3, characterized in that the hanging scaffold (22) is made of a thick steel plate, two groups of through holes (221) which are symmetrically arranged along the central line of the hanging scaffold (22) and are positioned on two sides of the lifting lug (21) are arranged on the hanging scaffold (22) and are used for penetrating fastening bolts (24).
7. The rolling mill screw-down screw lifting adjusting device according to claim 1, wherein the fastening fixed baffle plate (5) is provided with a positioning bolt (51), and the positioning bolt (51) penetrates through the fastening fixed baffle plate (5) to be in threaded connection with the screw-down nut (3).
8. The rolling mill screw-down screw lifting adjusting device according to claim 1, wherein the fastening fixed baffle (5) is further provided with a fixing bolt (52), and the fixing bolt (52) penetrates through the fastening fixed baffle (5) to be in threaded connection with the rolling mill (4).
9. The rolling mill screw-down screw lifting adjustment device according to claim 4, wherein a steel wire rope (6) is connected in the lifting hole (211), and one end of the steel wire rope (6) far away from the lifting hole (211) is connected with a crane lifting hook (7).
10. A method of using a rolling mill screw down lead screw lifting adjustment device according to any one of claims 1-9, comprising the steps of:
firstly, welding a lifting lug (21) in the lifting assembly (2) and a lifting disc (22) into a whole, simultaneously connecting an adjusting nut (23) to a fastening bolt (24) in a threaded manner, and rotating the adjusting nut (23) to enable the length of the fastening bolt (24) to be suitable;
secondly, two groups of fastening bolts (24) penetrate through holes (221) formed in the hanging scaffold (22), so that one end of each fastening bolt (24) is connected to an installation groove (11) formed in the top of the screw-down screw rod (1) in a threaded manner, and meanwhile, the fastening bolts (24) are screwed down;
thirdly, driving a crane to the vicinity, placing the crane lifting hook (7), selecting a steel wire rope (6) with a proper length and connected with a lifting hole (211) formed in the lifting lug, penetrating the steel wire rope (6) through the lifting hole (211), and sleeving the steel wire rope (6) on the crane lifting hook (7);
step four, a crane drives the crane lifting hook (7) to move upwards, so that the lifting assembly (2) is lifted, the screw-down screw rod (1) is lifted at the same time, the screw-down nut (3) is conveniently mounted on the screw-down screw rod (1) at the moment, and the fastening fixed baffle plate (5) is mounted at the bottom of the screw-down nut (3) through the positioning bolt (51);
turning the adjusting nut (23) by using a spanner, so that the adjusting nut (23) moves upwards, the length of the fastening bolt (24) is changed, the gradient of the screw-down screw (1) is changed, and the screw-down screw (1) is in a vertical state;
step six, driving the screw-down screw rod (1) to move by a crane, lifting and conveying the whole screw-down screw rod (1) and the screw-down nut (3) and penetrating the whole screw-down screw rod and the screw-down nut into a screw-down hole of the rolling mill (4) slowly;
step seven, installing the fixing bolts (52) so that the fastening fixing baffle plate (5) is fixed at the bottom of the screw-down nut (3) and fixedly connected with the rolling mill (4), and installing the screw-down screw rod (1) and the screw-down nut (3) is completed at the moment;
and eighth, detaching the fastening bolts (24) in the hoisting assembly (2) to finish hoisting work of pressing down the screw rod (1).
CN202310939866.8A 2023-07-28 2023-07-28 Rolling mill screw-down screw rod lifting adjusting device and use method Pending CN116788973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310939866.8A CN116788973A (en) 2023-07-28 2023-07-28 Rolling mill screw-down screw rod lifting adjusting device and use method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310939866.8A CN116788973A (en) 2023-07-28 2023-07-28 Rolling mill screw-down screw rod lifting adjusting device and use method

Publications (1)

Publication Number Publication Date
CN116788973A true CN116788973A (en) 2023-09-22

Family

ID=88036539

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310939866.8A Pending CN116788973A (en) 2023-07-28 2023-07-28 Rolling mill screw-down screw rod lifting adjusting device and use method

Country Status (1)

Country Link
CN (1) CN116788973A (en)

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