CN117359269A - Hot rolling heavy shear blade replacement device and replacement method - Google Patents

Hot rolling heavy shear blade replacement device and replacement method Download PDF

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Publication number
CN117359269A
CN117359269A CN202210772554.8A CN202210772554A CN117359269A CN 117359269 A CN117359269 A CN 117359269A CN 202210772554 A CN202210772554 A CN 202210772554A CN 117359269 A CN117359269 A CN 117359269A
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CN
China
Prior art keywords
shear blade
cutting edge
hot rolling
rotating shaft
overhaul platform
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
CN202210772554.8A
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Chinese (zh)
Inventor
冯光雷
莫斌辉
郑庚欣
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 Baosteel Technology Services Co Ltd
Original Assignee
MCC Baosteel Technology Services 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 MCC Baosteel Technology Services Co Ltd filed Critical MCC Baosteel Technology Services Co Ltd
Priority to CN202210772554.8A priority Critical patent/CN117359269A/en
Publication of CN117359269A publication Critical patent/CN117359269A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines 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
    • B23P19/04—Machines 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 for assembling or disassembling parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines 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
    • B23P19/04—Machines 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 for assembling or disassembling parts
    • B23P19/06—Screw or nut setting or loosening machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Accessories And Tools For Shearing Machines (AREA)

Abstract

The invention provides a hot rolling heavy shear blade replacement device and a replacement method, comprising an overhaul platform, a shear blade adjusting mechanism and a shear blade fixing mechanism, wherein the shear blade adjusting mechanism is arranged on the overhaul platform; the shear blade fixing mechanism comprises a rotating shaft and a plurality of fasteners, the shear blade adjusting mechanism is in transmission connection with the rotating shaft, and the rotating shaft is arranged in the overhaul platform; and the fasteners are arranged on the upper side and the lower side of the rotating shaft and used for locking and supporting the shearing blade. The upper side and the lower side of the rotating shaft are respectively provided with the fastening pieces, so that the upper cutting edge and the lower cutting edge can be replaced at the same time, the maintenance time is greatly saved, and meanwhile, the cutting edge to be replaced is locked by the fastening pieces, so that the cutting edge cannot shake or fall to cause personnel injury. After the invention is adopted, the maintenance and replacement working time of the cutting edge is shortened from the original 72 hours of 6 persons to 24 hours of 4 persons, thereby effectively shortening the operation time and saving the maintenance cost.

Description

Hot rolling heavy shear blade replacement device and replacement method
Technical Field
The invention relates to the technical field of hot rolling mill equipment maintenance and shear blade replacement equipment, in particular to a hot rolling heavy shear blade replacement device and a hot rolling heavy shear blade replacement method.
Background
At present, in the technical field of overhauling of hot-rolled heavy shear blades, when the shear blades are replaced, single shear blades are commonly installed in sequence. The operation process is that firstly, the cutting edges are assembled on site, the single cutting edge is transferred to the heavy shears by the travelling crane, then the single cutting edge is poured to the installation position by the hoist, then the old cutting edge is disassembled, and then the new cutting edge is replaced, and the old cutting edge is lifted out by the travelling crane.
By adopting the replacement mode, the risk coefficient is high, the operation time is long, the shear blade is easy to detach due to the weight, the shear blade is unstable and easy to shake, great difficulty is brought to maintenance, only one shear blade can be replaced at a time, the working efficiency is low, the shear blade can be replaced after 72 hours of 6 persons are required, and the construction difficulty is high.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a hot rolling heavy shear blade replacement device and a replacement method which are low in construction difficulty, quick and convenient, and are used for solving the problems of high construction difficulty, long construction time and low labor efficiency when the shear blade is replaced in the prior art.
To achieve the above and other related objects, the present invention provides a hot rolling heavy shear blade replacement device, including a service platform, a blade adjustment mechanism, and a blade fixing mechanism, wherein the blade adjustment mechanism is mounted on the service platform; the shear blade fixing mechanism comprises a rotating shaft and a plurality of fasteners, the shear blade adjusting mechanism is in transmission connection with the rotating shaft, and the rotating shaft is arranged in the overhaul platform; and the fasteners are arranged on the upper side and the lower side of the rotating shaft and used for locking and supporting the shearing blade.
Preferably, the maintenance platform comprises a plurality of sliding rails, a plurality of reinforcing ribs are fixedly connected between the sliding rails, and a platform steel plate is arranged above the reinforcing ribs.
Preferably, the hot rolling heavy shear blade replacing device further comprises a safety pin inserting hole piece, and the safety pin inserting hole piece is fixed on two sliding rails at two ends of the overhauling platform.
Preferably, the shear blade fixing mechanism further comprises bearings, the bearings are mounted on two sliding rails at two ends of the overhaul platform, and the rotating shaft is rotatably connected with the overhaul platform through the bearings.
Preferably, the shear blade fixing mechanism further comprises a leaning block, wherein the leaning block is connected with the fastening piece, and a gap between the leaning block and the fastening piece is adjustable.
Preferably, the cutting edge adjusting mechanism comprises a supporting component, a driving component and a transmission component, wherein the driving component is fixed on the maintenance platform and is connected with the rotating shaft through the transmission component.
Preferably, the supporting component comprises a supporting frame and a supporting seat, the supporting frame is fixed on the maintenance platform, and the supporting seat is fixed at one end of the supporting frame far away from the maintenance platform; the supporting seat top is offered the supporting groove, the rotation axis is placed in the supporting groove.
Preferably, the driving assembly comprises a hand wheel and a speed reducer, the transmission assembly comprises a worm wheel and a worm, an output shaft of the speed reducer is fixedly connected with the worm, and the worm wheel is sleeved on the rotating shaft; the side wall of the supporting seat is provided with a connecting block, and the worm is rotatably arranged on the connecting block and is in transmission connection with the worm wheel; the speed reducer is fixed on the support frame, and the hand wheel is in transmission connection with the rotating shaft through the speed reducer, the worm and the worm wheel.
Preferably, the hot rolling heavy shear blade replacement device further comprises a plurality of balancing weights, and the balancing weights are arranged at one end, far away from the rotating shaft, of the overhauling platform.
In order to achieve the above and other related objects, the present invention also provides a method for replacing a hot rolling heavy shear blade, which adopts the hot rolling heavy shear blade replacing device, and comprises the following specific steps:
s1: moving the maintenance platform to a transmission roller way of the hot rolling heavy shears;
s2: operating the cutting edge adjusting mechanism to enable the cutting edge fixing mechanism to be close to the cutting edge to be replaced, and locking and supporting the cutting edge to be replaced through the fastener;
s3: removing the cutting edge to be replaced, adjusting a cutting edge fixing mechanism through a cutting edge adjusting mechanism, and moving the maintenance platform out of the transmission roller way;
s4: locking the new cutting edge on the cutting edge fixing mechanism through a fastener;
s5: moving the maintenance platform to a transmission roller way of the hot-rolled heavy shears, operating the shear blade adjusting mechanism to enable the shear blade fixing mechanism to be close to the installation position of the shear blade, and installing and fixing a new shear blade to the hot-rolled heavy shears;
s6: and the overhauling platform is moved out of the transmission roller way by adjusting the shear blade fixing mechanism through the shear blade adjusting mechanism.
As described above, the hot rolling heavy shear blade replacement device and the replacement method according to the present invention have the following advantageous effects:
the hot rolling heavy shear blade replacement device and the replacement method thereof are provided with the maintenance platform, so that a convenient space is provided for an operator to replace and work, and the safety of the operator is ensured; the upper side and the lower side of the rotating shaft are both provided with the fasteners, the upper cutting edge and the lower cutting edge can be replaced simultaneously, the maintenance time is greatly saved, the cutting edge to be replaced is locked by the fasteners, and the cutting edge cannot shake or fall to cause personnel injury. After the hot rolling heavy shear blade replacement device and the replacement method are adopted, the maintenance and replacement working time of the shear blade is shortened from the original 72 hours of 6 persons to 24 hours of 4 persons, so that the operation time is effectively shortened, and the maintenance cost is saved. The invention solves the problems of difficult disassembly and assembly of the cutting edge and inconvenient standing of personnel due to no operation and no acting point of personnel in the process of replacing the cutting edge in the prior art, ensures personal safety and improves the working efficiency.
Drawings
FIG. 1 is a plan view of a hot rolling heavy shear blade changing apparatus according to the present invention;
FIG. 2 is a schematic view of the space of the service platform of the hot rolling heavy shear blade replacement device of the present invention;
FIG. 3 is a front view of the shear pin socket member of the hot rolling heavy shear blade changing apparatus of the present invention;
FIG. 4 is a front view of the hot rolling heavy shear blade changing apparatus of the present invention;
fig. 5 is a schematic space view of a balancing weight of the hot rolling heavy shear blade replacement device of the present invention.
Reference numerals illustrate:
1. a maintenance platform; 101. a slide rail; 102. a platform steel plate; 103. reinforcing ribs;
2. a shear pin socket member;
3. a cutting edge adjusting mechanism; 301. a hand wheel; 302. a speed reducer; 303. a worm; 304. a worm wheel; 305. a support frame; 306. a support base; 307. a support groove; 308. a connecting block;
4. a shear blade fixing mechanism; 401. a fastener; 402. a bearing; 403. a rotation shaft; 404. a leaning block; 405. a connecting frame;
5. and (5) balancing weights.
Detailed Description
Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the invention to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the invention, are not intended to be critical to the essential characteristics of the invention, but are otherwise, required to achieve the objective and effect taught by the invention. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
As shown in fig. 1, the present invention provides a hot-rolled heavy shear blade replacing device (hereinafter referred to as the blade replacing device), comprising an overhaul platform 1, a blade adjusting mechanism 3, and a blade fixing mechanism 4, wherein the blade adjusting mechanism 3 is welded on the overhaul platform 1; the shear blade fixing mechanism 4 comprises a rotating shaft 403 and a plurality of fasteners 401, the shear blade adjusting mechanism 3 is in transmission connection with the rotating shaft 403, and the rotating shaft 403 is rotatably arranged in the overhaul platform 1; a plurality of fasteners 401 are installed on the upper and lower sides of the rotation shaft 403, and the fasteners 401 lockingly support the cutting edge.
The invention relates to a hot rolling heavy shear blade replacement device, when an old shear blade is disassembled, an overhaul platform 1 is moved to a transmission roller way of a hot rolling heavy shear, then the angle of a shear blade fixing mechanism 4 is changed through a shear blade adjusting mechanism 3, the shear blade fixing mechanism 4 is contacted and bonded with the shear blade to be replaced, the shear blade to be replaced is fixed through a fastener 401, then the old shear blade is disassembled, the angle of the shear blade fixing mechanism 4 is reduced again through the shear blade adjusting mechanism 3, and then the overhaul platform 1 fixed with the old shear blade is moved out of the transmission roller way of the hot rolling heavy shear; when a new cutting edge is required to be installed, the new cutting edge is fixed on a fastener 401, then the overhaul platform 1 fixed with the new cutting edge is moved to a roller way of the hot-rolled heavy shears, then the angle of the cutting edge fixing mechanism 4 is changed through the cutting edge adjusting mechanism 3, the cutting edge fixing mechanism 4 is contacted and jointed with the hot-rolled heavy shears, the new cutting edge is fixed on the hot-rolled heavy shears through the fastener 401, and then the overhaul platform 1 is moved out of the roller way of the hot-rolled heavy shears. A plurality of fasteners 401 are installed at the upper and lower sides of the rotation shaft 403, and can simultaneously replace the upper and lower blades, improving the replacement efficiency. Operators can stand on the overhaul platform 1 to operate, so that the safety of the operators is ensured.
Preferably, as shown in fig. 1 and 2, the overhaul platform 1 comprises a plurality of slide rails 101, a plurality of reinforcing ribs 103 are welded between the plurality of slide rails 101, and a platform steel plate 102 is arranged above the reinforcing ribs 103. In the present embodiment, the number of the slide rails 101 is two, and the reinforcing ribs 103 are welded between the two slide rails 101. Further, in the present embodiment, in order to facilitate fixing of the blade adjustment mechanism 3, the platform steel plate 102 covers only the front half portion of the reinforcing rib 103, and the blade adjustment mechanism 3 is welded to the rear front half portion not covered with the reinforcing rib 103. In other embodiments, the platform steel plate 102 may also cover the entire stiffener 103. In this embodiment, the weight of the service platform 1 is 2.2T, and is mainly used for placing the cutting edge adjusting mechanism 3, the cutting edge fixing mechanism 4 and the balancing weight 5.
Preferably, as shown in fig. 1, 2 and 3, the blade replacement device has high safety. The hot rolling heavy shear blade replacing device further comprises a safety pin inserting hole piece 2, and the safety pin inserting hole piece 2 is welded on two sliding rails 101 at two ends of the overhaul platform 1. In this embodiment, the shear pin jack member 2 is inserted with a corresponding fixing assembly of the hot-rolled heavy shears through the shear pin, which on the one hand has a fixing effect on the shear blade replacement device, and on the other hand means that the shear blade replacement device moves to the working area of the shear blade when the shear pin can be inserted in the shear pin jack member 2, and can be positioned quickly. In addition, when the shear blade replacement device is hoisted to a roller way of the hot rolling heavy shears by using a travelling crane, the safety pin jack piece 2 can also be used as a hoisting hole for hoisting operation.
Preferably, as shown in fig. 1, 2 and 4, the rotation shaft 403 is rotatable while having support members at both ends thereof. The shear blade fixing mechanism 4 further comprises bearings 402, the bearings 402 are mounted on the two sliding rails 101 at two ends of the overhaul platform 1, and a rotating shaft 403 is rotatably connected with the overhaul platform 1 through the bearings 402.
Preferably, as shown in fig. 4, in order to enable the blade fixing mechanism 4 to better attach the fastener 401 on the blade fixing mechanism 4 to the blade when the blade is replaced. The shear blade fixing mechanism 4 further includes a back block 404, the back block 404 is connected to the fastener 401, and a gap between the back block 404 and the fastener 401 is adjustable. In this embodiment, the fastener 401 includes a fastening seat, a connecting bolt, and a connecting nut, where the connecting bolt penetrates through the fastening seat and the leaning block 404 at the same time, and the fastening seat is fixedly connected with the rotating shaft 403 through a connecting frame 405, as shown in fig. 4, that is, one end of the connecting frame 405 is welded with the fastening seat, and the other end of the connecting frame 405 is welded with the rotating shaft 403. When the rotary shaft 403 rotates, the connecting frame 405 drives the fastening seat to rotate clockwise or counterclockwise, so that the fastening seat is close to or far from the cutting edge.
Further, in this embodiment, the number of the fasteners 401 is four, two fasteners 401 on the upper side and the lower side of the rotating shaft 403 are respectively disposed, and when the two fasteners 401 on the upper side can be aligned and fixed with the upper cutting edge, the two fasteners 401 on the lower side can be aligned and fixed with the lower cutting edge, that is, when the rotating shaft 403 drives the two fasteners 401 on the upper side to rotate by a certain angle, the two fasteners 401 on the lower side rotate by the same angle, and four fasteners 401 can be aligned and fixed with the upper cutting edge and the lower cutting edge at the same time, and the upper cutting edge and the lower cutting edge can be detached and replaced.
Further, in this embodiment, after the fastening seat approaches to the attached cutting edge, the bolts for fixing the cutting edge and the hot rolling heavy shearing equipment are removed, and then the connecting bolts on the fastening seat penetrate through the connecting holes on the cutting edge, and then the cutting edge and the fastening seat are locked and fixed by using the connecting nuts. The leaning block 404 and the fastening piece 401 are penetrated by the connecting bolt at the same time, and a gasket can be further arranged between the leaning block 404 and the fastening piece 401, so that the gap between the fastening piece 401 and the shearing blade is adjusted, the shearing blade is ensured to be stably locked on the fastening seat, and the safety is high. In the present embodiment, the blade fixing mechanism 4 is mainly used for supporting and adjusting the blade when the blade is detached or attached.
Preferably, as shown in fig. 1, 2 and 4, the blade adjustment mechanism 3 is configured to allow the blade fixing mechanism 4 to be angularly adjusted. The shear blade adjusting mechanism 3 comprises a supporting component, a driving component and a transmission component, wherein the driving component is welded on the overhaul platform 1, and the driving component is connected with the rotating shaft 403 through the transmission component. As shown in fig. 2, in this embodiment, the supporting component includes a supporting frame 305 and a supporting seat 306, where the supporting frame 305 is welded on the reinforcing rib 103 of the unpaved platform steel plate 102; the support base 306 has a support groove 307 formed at the top thereof, and the rotation shaft 403 is placed in the support groove 307. In this embodiment, the shape of the supporting groove 307 is a semicircle, the supporting groove 307 is in line with the bearing 402 in the horizontal plane, that is, the left and right ends of the rotating shaft 403 are inserted into the bearing 402, and the middle of the rotating shaft 403 is placed in the supporting groove 307 to increase the load strength of the rotating shaft 403.
Preferably, as shown in fig. 1 and 4, the operator can drive the rotation shaft 403 to rotate. The driving assembly comprises a hand wheel 301 and a speed reducer 302, the transmission assembly comprises a worm wheel 304 and a worm 303, an output shaft of the speed reducer 302 is connected with the worm 303 through a coupler, and the worm wheel 304 is connected on a rotating shaft 403 through a key; a connecting block 308 is welded on the side wall of the supporting seat 306, and a worm 303 is rotatably arranged on the connecting block 308 and is meshed with the worm wheel 304 for transmission; the speed reducer 302 is fastened on the supporting frame 305 through screws, and the hand wheel 301 is in transmission connection with the rotating shaft 403 through the speed reducer 302, the worm 303 and the worm wheel 304. In this embodiment, as shown in fig. 2, the connection block 308 is a U-shaped block with a semicircular opening, and the worm 303 is fastened to the U-shaped block by a semicircular clip, so as to position and support the worm 303, and engage the worm 303 with the worm wheel 304. In this embodiment, the hand wheel 301 is fixedly connected to the input shaft of the speed reducer 302 via a coupling.
Further, in the present embodiment, the maximum angle range in which the cutting edge adjustment mechanism 3 can rotate the cutting edge fixing mechanism 4 is 60 °. In other embodiments, the handwheel 301 may employ other drive assemblies such as motors, rotary cylinders, and the like.
Preferably, as shown in fig. 1 and 5, in order to avoid potential safety hazards caused by rollover and tilting of the blade replacement device when the blade is replaced. The hot rolling heavy shear blade replacement device further comprises a plurality of balancing weights 5, wherein the balancing weights 5 are arranged at one end, far away from the rotating shaft 403, of the overhaul platform 1. In this embodiment, the number of balancing weights 5 is two, and the weight of every balancing weight 5 is 750KG, and the total weight of upper cutting edge, lower cutting edge is 1.5T, and through moment calculation, the quality of two balancing weights 5 can satisfy the use. In other embodiments, the number of balancing weights 5 may be other, as long as the weight of the balancing member is not less than the total weight of the upper and lower blades.
In order to achieve the above and other related objects, the present invention also provides a method for replacing a hot rolling heavy shear blade, which adopts the hot rolling heavy shear blade replacing device, and comprises the following specific steps:
a1: disassembly of old cutting edge
A1.1: lifting the shear blade replacement device to a transmission roller way of the hot-rolled heavy shears by adopting tools such as a crane or a crane, and pushing the sliding rail 101 to enable the safety pin jack piece 2 to be inserted with a corresponding fixed component on the hot-rolled heavy shears through a safety pin, so that the shear blade replacement device is prevented from being deviated;
a1.2: a person stands on the overhaul platform 1 and removes two fixing bolts for connecting the old shearing edge with the hot rolling heavy shears;
a1.3: the personnel shake the hand wheel 301, the hand wheel 301 drives the worm 303 to rotate through the speed reducer 302, the worm 303 drives the worm wheel 304 to rotate, thereby drives the rotating shaft 403 to rotate, the fastener 401 on one side of the rotating shaft 403 deflects a certain angle along with the rotating shaft 403 until the fastener 401 is aligned with the connecting hole of the old shear blade after the fixing bolt is removed, then the fastening seat is fixedly connected with the old shear blade by adopting the connecting bolt and the connecting nut, and in the process of the fixed connection, the stability of the old shear blade on the fastening seat can be ensured by adjusting the leaning block 404 and adding a gasket between the leaning block 404 and the fastener 401; after the old cutting edge is fixed on the fastening seat, removing the residual fixing bolts of the old cutting edge and the hot rolling heavy shears;
a1.4: the personnel shake the hand wheel 301 reversely, make the fastener 401 of the rotation shaft 403 and old cutting edge keep away from the hot rolling heavy shears, pull out the safety pin, push the slide rail 101 to make the cutting edge replacing device move out of the working area of the cutting edge along the driving roller way, and hoist the cutting edge replacing device to the ground through the travelling crane again, so as to finish the dismantling operation of the old cutting edge. The fastener 401 and the old cutting edge are moved away from the hot rolling heavy shears by the hand wheel 301, avoiding that the fastener 401 and the old cutting edge collide with the hot rolling heavy shears when the cutting edge changing device is removed.
A1.5: if the person needs to detach the upper cutting edge and the lower cutting edge at the same time, the upper cutting edge and the lower cutting edge are fixedly connected with the fastener 401 on the upper side and the lower side of the rotating shaft 403 at the same time in the step a1.3, and then the subsequent steps are performed.
A2: mounting new cutting edge
A2.1: the personnel fix the two connecting holes on the new shear blade and the fastener 401 through the connecting bolt and the connecting nut; in the process of fixed connection, the stability of the new cutting edge on the fastening seat can be ensured by adjusting the leaning block 404 and adding a gasket between the leaning block 404 and the fastening piece 401;
a2.2: lifting the shear blade replacement device fixed with the new shear blade to a transmission roller way of the hot-rolled heavy shear by adopting a travelling crane, and pushing a sliding rail 101 to enable the safety pin jack piece 2 to be spliced with a corresponding fixed component on the hot-rolled heavy shear through a safety pin, so that the shear blade replacement device is prevented from shifting;
a2.3: a person stands on the overhaul platform 1, shakes the hand wheel 301, the hand wheel 301 drives the worm 303 to rotate through the speed reducer 302, the worm 303 drives the worm wheel 304 to rotate, the rotating shaft 403 is driven to rotate, the fastener 401 on one side of the rotating shaft 403 deflects a certain angle along with the rotating shaft 403 until the connecting hole on the new cutting edge is aligned with the cutting edge connecting hole of the hot rolling heavy shears, and then the rest connecting holes on the new cutting edge are fixedly connected with the hot rolling heavy shears through the fixing bolts;
a2.4: removing connecting bolts and connecting nuts for fixing the fastener 401 and the new cutting edge, and fastening and connecting all connecting holes of the new cutting edge with the hot-rolled heavy shears by using the fixing bolts;
a2.5: the personnel reversely shake the hand wheel 301 to enable the fastening piece 401 of the rotating shaft 403 to be far away from the hot rolling heavy shear, pull out the safety pin, push the sliding rail 101 to enable the shear blade replacing device to move out of the working area of the shear blade along the transmission roller way, and lift the shear blade replacing device to the ground through the travelling crane again to finish the installation operation of a new shear blade.
A2.6: if personnel need to install the upper cutting edge and the lower cutting edge at the same time, the upper cutting edge and the lower cutting edge are fixedly connected with the fastener 401 on the upper side and the lower side of the rotating shaft 403 at the same time in the step A2.1, then the new upper cutting edge on the upper side and the new lower cutting edge on the lower side of the rotating shaft 403 are fastened with the hot rolling heavy machine at the same time in the step A2.3, and then the subsequent steps are carried out.
The hot rolling heavy shear blade replacement device and the replacement method have the following beneficial effects:
1. the shear blade replacing device is provided with the safety pin inserting hole piece 2, can be matched with equipment of hot rolling heavy shears, and is convenient to use. The shear pin jack member 2 on the one hand has a fixing effect on the shear blade replacement device, and on the other hand when the shear pin can be inserted into the shear pin jack member 2, it means that the shear blade replacement device moves to the shear blade working area, the shear blade replacement operation can be performed, and the quick positioning can be performed.
2. The shear blade replacing device is provided with the overhaul platform 1, so that the safety of operators during overhaul can be guaranteed, the sliding rail 101 of the overhaul platform 1 is directly placed on the transmission roller way of the hot rolling heavy shear, the hand chain hoist is not required to be adopted to transversely move the shear blade replacing device to the working area of the shear blade, and the use is convenient.
3. The cutting edge replacing device is provided with the cutting edge fixing mechanism 4, the cutting edge fixing mechanism 4 and the cutting edge adjusting mechanism 3 are matched for use, the upper cutting edge and the lower cutting edge can be replaced at the same time, and the labor efficiency is high; the shear blade fixing mechanism 4 can rotate at an angle of-60 degrees to 60 degrees under the drive of the shear blade adjusting mechanism 3, and meanwhile, the shear blade can be stably fastened to the shear blade by being matched with the leaning block 404, so that the safety is high. The shearing edge adjusting mechanism 3 can ensure that the shearing edge cannot scratch peripheral equipment when entering and exiting the hot rolling heavy shears, so that the construction difficulty is reduced, and the operation safety is improved.
4. The shear blade fixing mechanism 4 of the shear blade replacing device is provided with the leaning block 404, the shear blade is stably locked on the fastener 401 through the leaning block 404, and the shear blade cannot shake or fall to cause personnel injury.
5. By adopting the shear blade replacement device, the labor efficiency can be effectively improved, when the shear blade replacement device is not adopted, 6 persons are required to replace the upper shear blade and the lower shear blade for 72 hours, after the shear blade replacement device is adopted, 4 persons are required to replace the upper shear blade and the lower shear blade for 24 hours, the operation time is effectively shortened, and the maintenance cost is saved.
Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (10)

1. The utility model provides a hot rolling heavy shear cutting edge change device which characterized in that: the device comprises an overhaul platform (1), a cutting edge adjusting mechanism (3) and a cutting edge fixing mechanism (4), wherein the cutting edge adjusting mechanism (3) is arranged on the overhaul platform (1); the shear blade fixing mechanism (4) comprises a rotating shaft (403) and a plurality of fasteners (401), the shear blade adjusting mechanism (3) is in transmission connection with the rotating shaft (403), and the rotating shaft (403) is arranged in the overhaul platform (1); a plurality of fasteners (401) are arranged on the upper side and the lower side of the rotating shaft (403), and the fasteners (401) are used for locking and supporting the shearing blade.
2. The hot rolling heavy shear blade changing apparatus according to claim 1, wherein: the overhaul platform (1) comprises a plurality of sliding rails (101), a plurality of reinforcing ribs (103) are fixedly connected between the sliding rails (101), and a platform steel plate (102) is arranged above the reinforcing ribs (103).
3. The hot rolling heavy shear blade changing apparatus according to claim 2, wherein: the safety pin jack assembly is characterized by further comprising a safety pin jack assembly (2), wherein the safety pin jack assembly (2) is fixed on two sliding rails (101) at two ends of the overhaul platform (1).
4. The hot rolling heavy shear blade changing apparatus according to claim 2, wherein: the shear blade fixing mechanism (4) further comprises bearings (402), the bearings (402) are mounted on two sliding rails (101) at two ends of the overhaul platform (1), and the rotating shaft (403) is rotatably connected with the overhaul platform (1) through the bearings (402).
5. The hot rolling heavy shear blade changing apparatus according to claim 1, wherein: the shear blade fixing mechanism (4) further comprises a leaning block (404), the leaning block (404) is connected with the fastening piece (401), and a gap between the leaning block (404) and the fastening piece (401) is adjustable.
6. The hot rolling heavy shear blade changing apparatus according to claim 1, wherein: the shear blade adjusting mechanism (3) comprises a supporting component, a driving component and a transmission component, wherein the driving component is fixed on the overhaul platform (1) and is connected with the rotating shaft (403) through the transmission component.
7. The hot rolling heavy shear blade changing apparatus according to claim 6, wherein: the supporting assembly comprises a supporting frame (305) and a supporting seat (306), the supporting frame (305) is fixed on the overhaul platform (1), and the supporting seat (306) is fixed at one end, far away from the overhaul platform (1), of the supporting frame (305); the top of the supporting seat (306) is provided with a supporting groove (307), and the rotating shaft (403) is placed in the supporting groove (307).
8. The hot rolling heavy shear blade changing apparatus according to claim 7, wherein: the driving assembly comprises a hand wheel (301) and a speed reducer (302), the transmission assembly comprises a worm wheel (304) and a worm (303), an output shaft of the speed reducer (302) is fixedly connected with the worm (303), and the worm wheel (304) is sleeved on the rotating shaft (403); a connecting block (308) is arranged on the side wall of the supporting seat (306), and the worm (303) is rotatably arranged on the connecting block (308) and is in transmission connection with the worm wheel (304); the speed reducer (302) is fixed on the support frame (305), and the hand wheel (301) is in transmission connection with the rotating shaft (403) through the speed reducer (302), the worm (303) and the worm wheel (304).
9. The hot rolling heavy shear blade changing apparatus according to claim 1, wherein: still include a plurality of balancing weight (5), balancing weight (5) set up the one end of keeping away from rotation axis (403) at maintenance platform (1).
10. A method for replacing a hot rolling heavy shear blade is characterized in that: the hot rolling heavy shear blade replacing device according to any one of the preceding claims 1-9, comprising the following specific steps:
s1: moving the overhaul platform (1) to a transmission roller way of the hot rolling heavy shears;
s2: the shear blade adjusting mechanism (3) is operated, so that the shear blade fixing mechanism (4) is close to the shear blade to be replaced, and the shear blade to be replaced is locked and supported through the fastener (401);
s3: removing the cutting edge to be replaced, adjusting the cutting edge fixing mechanism (4) through the cutting edge adjusting mechanism (3), and moving the overhaul platform (1) out of the transmission roller way;
s4: locking the new cutting edge on the cutting edge fixing mechanism (4) through a fastener (401);
s5: moving the maintenance platform (1) to a transmission roller way of the hot-rolled heavy shears, operating the shear blade adjusting mechanism (3) to enable the shear blade fixing mechanism (4) to be close to the installation position of the shear blade, and installing and fixing a new shear blade to the hot-rolled heavy shears;
s6: the shear blade fixing mechanism (4) is adjusted through the shear blade adjusting mechanism (3), and the overhaul platform (1) is moved out of the transmission roller way.
CN202210772554.8A 2022-06-30 2022-06-30 Hot rolling heavy shear blade replacement device and replacement method Pending CN117359269A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210772554.8A CN117359269A (en) 2022-06-30 2022-06-30 Hot rolling heavy shear blade replacement device and replacement method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210772554.8A CN117359269A (en) 2022-06-30 2022-06-30 Hot rolling heavy shear blade replacement device and replacement method

Publications (1)

Publication Number Publication Date
CN117359269A true CN117359269A (en) 2024-01-09

Family

ID=89393422

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210772554.8A Pending CN117359269A (en) 2022-06-30 2022-06-30 Hot rolling heavy shear blade replacement device and replacement method

Country Status (1)

Country Link
CN (1) CN117359269A (en)

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