CN108237503B - Device and method for replacing pressure measuring screw rod of thick plate vertical rolling mill - Google Patents
Device and method for replacing pressure measuring screw rod of thick plate vertical rolling mill Download PDFInfo
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- CN108237503B CN108237503B CN201611216049.6A CN201611216049A CN108237503B CN 108237503 B CN108237503 B CN 108237503B CN 201611216049 A CN201611216049 A CN 201611216049A CN 108237503 B CN108237503 B CN 108237503B
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- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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Abstract
The invention discloses a device and a method for replacing a pressure measuring screw rod of a thick plate vertical rolling mill, which relate to the technical field of pressure measurement of the thick plate vertical rolling mill of a metallurgical system and comprise a rear support, a connecting rod, a front end support and a screw rod nut placing support, wherein the rear support and the front end support are connected into a whole through the connecting rod and a connecting pin shaft; the front end support comprises a lower transverse positioning block, a front end support body, an upper transverse positioning block, a walking roller, a chain block hanging corner, a chain block chain guide wheel, a lifting lug, a guide roller, a guide support, a lead screw head fixing plate and a chain block; the rear support comprises a transverse positioning block, a rear support body, a walking roller, a roller mounting base, a chain block chain guide wheel, a chain block hanging angle and a chain block. The invention solves the problem that the vertical roll screw rod nut and the AWC oil cylinder cannot be replaced, is safe and efficient, does not need to disassemble other irrelevant components for replacement, saves the maintenance time and greatly reduces the labor intensity.
Description
Technical Field
The invention relates to the technical field of pressure measurement of a thick plate vertical rolling mill in a metallurgical system, in particular to a device and a method for replacing a pressure measurement screw rod of the thick plate vertical rolling mill.
Background
The Bao steel 5m wide and thick plate mill project is the biggest project of the fifteen planning construction of Bao steel corporation, is a Bao steel share adjustment product structure, and meets the important measures of the domestic market for the requirements of large-diameter oil and gas transmission pipeline plates, high-strength ship plates, high-strength building structure plates and pressure vessel plates. The wide and thick plate rolling mill comprises a horizontal rolling mill and a vertical rolling mill, wherein the vertical rolls further improve the width precision of the rectangle of the steel plate plane and the rolled steel plate by utilizing the hydraulic short stroke and the AWC function in the widening and finish rolling processes, and the two sides of the steel plate are prevented from being overlapped by side pressure. It can be seen that the quality of the product is directly affected by whether the vertical rolling mill is normal or not.
The vertical rolling mill needs to replace a screw rod nut after being normally used, particularly, the nut is seriously worn and needs to be replaced regularly, an AWC (inclined surface wave control) oil cylinder is also arranged on the screw rod nut, the AWC oil cylinder is inevitably leaked in the sealing use process, and the replacement and maintenance operation is required regularly. However, the screw rod and the screw nut of the vertical roll are arranged in a housing of the vertical rolling mill, the length of the screw rod and the screw nut is 7 meters, and the travelling crane cannot be directly lifted and transported for operation.
Patent CN101011708A discloses a device and method for quickly replacing a transmission shaft of a horizontal rolling mill of a front-back-hanging vertical rolling mill, wherein the device is composed of a running trolley and a trolley capable of relatively moving on the trolley, the track of the trolley is a roller replacing track by using a working roller, and a roller group is arranged on a rack on the transmission side. Through the quick replacement of the transmission shaft of the horizontal rolling mill by the device, the problem that the main transmission connecting shaft of the horizontal roughing mill with the front back-hanging vertical roll mill type can not be replaced is solved, and the time for replacing can be greatly shortened. Has the advantages of convenient operation, reasonable structure, high working efficiency and the like. However, the method of the invention has requirements on traveling crane, 2 hooks are needed, and the 2 hooks need to be a straight line parallel to the rolling mill frame, otherwise, the method cannot be implemented; one end of the main transmission shaft is hoisted and placed on a trolley, the small hook is used for sending the hook, the large hook drives the main shaft to move outwards, and the main transmission shaft is hoisted by hanging a steel wire rope on the small hook after being moved out of the rolling mill. The method is characterized in that the travelling crane drags the main transmission shaft to move, so that the steel wire rope of the travelling crane is easy to go out of the groove, and serious safety accidents occur.
Disclosure of Invention
The invention aims to overcome the defect of difficult replacement of a lead screw nut of a vertical rolling mill, and provides a device and a method for replacing a pressure measuring lead screw of a thick plate vertical rolling mill.
The technical problem to be solved by the invention can be realized by the following technical scheme:
a pressure measuring screw rod replacing device of a thick plate vertical rolling mill comprises a rear support, a connecting rod, a front end support and a screw rod nut placing support, wherein the rear support and the front end support are connected into a whole through the connecting rod and a connecting pin shaft;
the front end support comprises a lower transverse positioning block, a front end support body, an upper transverse positioning block, a walking roller, a chain block hanging angle, a chain block chain guide wheel, a lifting lug, a guide roller, a guide support, a lead screw head fixing plate and a chain block, wherein the lower transverse positioning block and the upper transverse positioning block are respectively fixed on the lower part and the upper part of two sides of the front end support body;
the rear support comprises a transverse positioning block, a rear support body, walking rollers, a roller mounting base, chain block chain guide wheels, chain block hanging corners and a chain block, the transverse positioning block is welded on two sides of the rear support body, the roller mounting base is fixed on two sides of the rear support body, the walking rollers are fixed on the roller mounting base, the chain block hanging corners are welded on the rear support body, the chain block chain guide wheels are connected on the rear support body through bolts, one end of the chain block is hooked with the chain block hanging corners, and the chain at the other end is placed into the guide rollers;
the screw rod and nut placing support comprises a steel plate, a screw rod support, a screw rod, an AWC (active surface welding) oil cylinder, a nut support and an AWC (active surface welding) oil cylinder, the screw rod support, the AWC oil cylinder and the nut support are fixedly installed on the steel plate, the screw rod is placed on the screw rod support, and the AWC oil cylinder is placed on the AWC oil cylinder and the nut support.
Further, the lower transverse positioning block and the upper transverse positioning block are fixed on the front end bracket body in a welding mode.
Furthermore, two connecting rod connecting pin holes are formed in the top of the front end support body.
Furthermore, a lifting lug is installed on the screw rod head fixing plate.
Further, the roller mounting bases are welded to both sides of the rear bracket body.
Furthermore, the walking rollers are installed on the roller installation base through pin shafts.
Furthermore, two connecting rod connecting pin holes are formed in the top of the rear support body.
A method for replacing a pressure measuring screw rod of a thick plate vertical rolling mill comprises the following steps,
s1, removing the relevant connecting pieces of the screw rod, and respectively hoisting the rear bracket and the front bracket into a cross beam of the vertical rolling mill;
s2, placing the rear bracket and the front end bracket on the running track of the vertical roller, and respectively pushing the rear bracket and the front end bracket to proper positions;
s3, electrically inching a rotating screw rod or a manual turning screw rod, and inserting the head of the screw rod into a groove of a screw rod head fixing plate;
s4, judging whether the position of the lead screw head fixing plate is proper or not, and adjusting the position of the lead screw head fixing plate by a chain block until the position of the lead screw head fixing plate is proper;
s5, penetrating a bolt into the connecting and fixing hole to be connected with the threaded hole at the head of the screw rod;
s6, pulling the front end bracket by another chain block to drive the screw rod and the nut to move until the AWC oil cylinder and the nut move to a proper position to be moved out of the housing of the vertical rolling mill;
s7, fixing a steel wire rope on the rear support on the AWC oil cylinder, pulling a chain block to fix the AWC oil cylinder and a nut, and installing a connecting rod;
s8, continuously moving the front end bracket to drive the rear bracket, and moving the screw rod nut out of the housing of the vertical rolling mill;
s9, fixing the head of a screw rod by one end of a steel wire rope, enabling the other steel wire rope to penetrate through a gap in the top of a rear support to hang the other end of the screw rod, removing a connecting bolt and the steel wire rope at the head of the screw rod, removing a connecting rod, respectively moving the rear support and a front support to two sides, lifting a screw rod nut out of a rolling mill, placing the screw rod nut;
s10, installing the screw rod and the screw nut, and reversing the steps.
The invention has the beneficial effects that: a thick plate edger mill pressure measurement lead screw changes device and method, the support moves and is realized by pulling the calabash, move the lead screw nut to the crane can lift the position safely, the crane lifts the lead screw nut, change the lead screw nut fast, safely, conveniently; the problem of the unable change of vertical roll lead screw nut and AWC hydro-cylinder is solved to safe high efficiency does not need to dismantle other irrelevant parts in the change, has saved maintenance time, greatly reduced intensity of labour.
Drawings
The invention is further described with reference to the following figures and detailed description:
FIG. 1 is a view showing the construction of a changing apparatus according to the present invention;
FIG. 2 is a front end mount block diagram of the present invention;
FIG. 3 is a view of the rear bracket of the present invention;
FIG. 4 is a side view of a screw nut mounting bracket according to the present invention;
FIG. 5 is a structural view of a screw nut mounting support of the screw of the present invention;
FIG. 6 is a flow chart of a replacement method of the present invention.
Detailed Description
In order to make the contents and advantages of the technical solutions of the present invention more clear, the present invention is further described below with reference to the accompanying drawings.
With reference to fig. 1-5, a pressure measuring screw replacing device for a thick plate vertical rolling mill comprises a rear support 1.1, a connecting rod 1.2, a front support 1.3 and a screw nut placing support. The rear support 1.1 and the front support 1.3 are connected into a whole through a connecting rod 1.2 and a connecting pin shaft.
The front end support 1.3 comprises a lower transverse positioning block 2.1, a front end support body 2.2, an upper transverse positioning block 2.3, a walking roller 2.4, a connecting rod connecting pin hole 2.5, a chain block hanging angle 2.6, a chain block chain guide wheel 2.7, a lifting lug 2.8, a guide roller 2.9, a lifting lug 2.10, a guide support 2.11, a screw rod head fixing plate 2.12, a connecting fixing hole 2.13 and a chain block 2.14. The lower transverse positioning block 2.1 and the upper transverse positioning block 2.3 are welded on the lower part and the upper part of the two sides of the front end bracket body 2.2, and play a role in transverse positioning. The walking roller 2.4 is connected on the front end bracket body 2.2 by a pin shaft. Two connecting rod connecting pin holes 2.5 are processed at the top of the front end support body 2.2 and used for fixedly connecting the connecting rods 1.2. The lifting lug 2.8 is fixedly arranged at the top of the front end support body 2.2 and used for lifting and mounting the front end support body. The chain block hanging angle 2.6 is welded on the front end support body 2.2, and a pin shaft is arranged in the middle of the chain block hanging angle 2.6 and used for hanging a hook of the chain block. The chain block chain guide wheel 2.7 is connected on the front end bracket body 2.2 through a bolt, plays a steering role of a steering gear of a chain of the chain block and is equivalent to a fixed pulley. The guide roller 2.9 is arranged on the guide support 2.11 and plays a role in guiding and positioning when moving up and down. The screw rod head fixing plate 2.12 is fixed on the guide support 2.11 through a bolt, the screw rod head fixing plate 2.12 is used for fixing the head of the screw rod, a connecting fixing hole 2.13 is processed on the inner side of the screw rod head fixing plate, and the screw rod is fixed through the bolt. A lifting lug 2.10 is arranged on the screw rod head fixing plate 2.12. The hand chain block 2.14 one end couple catches on hand chain block string angle 2.6, and guide roller 2.9 is put into to the chain of the other end, and the couple catches on lug 2.8, and hand chain block 2.14 can drive lead screw head fixed plate 2.12 and do the lift action for aim at the position of lead screw, the change of two upper and lower lead screws all can be used, only need the lift position can.
The rear support 1.1 comprises a transverse positioning block 3.1, a rear support body 3.2, a walking roller 3.3, a roller mounting base 3.4, a connecting rod connecting pin hole 3.5, a chain guide wheel 3.6 of a chain block, a chain block hanging corner 3.7, a chain block 3.8 and a steel wire rope 3.9. The transverse positioning blocks 3.1 are welded on two sides of the rear support body 3.2 to play a transverse positioning role. The roller mounting bases 3.4 are also welded on two sides of the rear support body 3.2, and the walking rollers 3.3 are connected to the roller mounting bases 3.4 through pin shafts. The top of the rear support body 3.2 is provided with two connecting rod connecting pin holes 3.5 for fixedly connecting the connecting rods 1.2; the chain block hanging angle 3.7 is welded on the rear bracket body 3.2, and a pin shaft is arranged in the middle of the chain block hanging angle 3.7 and used for hanging a hook of the chain block; the chain block chain guide wheel 3.6 is connected on the rear support body 3.2 by a bolt, plays a role in guiding a steering gear of a chain of the chain block and is equivalent to a fixed pulley. One end of the chain block 3.8 is hooked with a hook of a chain block hanging corner 3.7, a chain at the other end is placed into a guide roller 3.6, the hook is hooked with a steel wire rope 3.9, and the steel wire rope 3.9 is used for fixing a nut and an AWC oil cylinder.
The screw and nut placing support comprises a steel plate 4.1, a screw support 4.2, a screw 4.3, an AWC oil cylinder, a screw support 4.4 and an AWC oil cylinder 4.5. The screw rod support 4.2, the AWC oil cylinder and the nut support 4.4 are fixedly arranged on the steel plate 4.1, the screw rod 4.3 is placed on the screw rod support 4.2, and the AWC oil cylinder 4.5 is placed on the AWC oil cylinder and the nut support 4.4.
With reference to the flow chart of the replacement method in fig. 6, a method for replacing a pressure measuring screw rod of a thick plate vertical rolling mill comprises the following steps:
s1, removing the relevant connecting pieces of the screw rod, and respectively hoisting the rear bracket and the front bracket into a cross beam of the vertical rolling mill;
s2, placing the rear bracket and the front end bracket on the running track of the vertical roller, and respectively pushing the rear bracket and the front end bracket to proper positions;
s3, electrically inching a rotating screw rod or a manual turning screw rod, and inserting the head of the screw rod into a groove of a screw rod head fixing plate;
s4, judging whether the position of the lead screw head fixing plate is proper or not, and adjusting the position of the lead screw head fixing plate by a chain block until the position of the lead screw head fixing plate is proper;
s5, penetrating a bolt into the connecting and fixing hole to be connected with the threaded hole at the head of the screw rod;
s6, pulling the front end bracket by another chain block to drive the screw rod and the nut to move until the AWC oil cylinder and the nut move to a proper position to be moved out of the housing of the vertical rolling mill;
s7, fixing a steel wire rope on the rear support on the AWC oil cylinder, pulling a chain block to fix the AWC oil cylinder and a nut, and installing a connecting rod;
s8, continuously moving the front end bracket to drive the rear bracket, and moving the screw rod nut out of the housing of the vertical rolling mill;
s9, fixing the head of a screw rod by one end of a steel wire rope, enabling the other steel wire rope to penetrate through a gap in the top of a rear support to hang the other end of the screw rod, removing a connecting bolt and the steel wire rope at the head of the screw rod, removing a connecting rod, respectively moving the rear support and a front support to two sides, lifting a screw rod nut out of a rolling mill, placing the screw rod nut;
s10, installing the screw rod and the screw nut, and reversing the steps.
The invention solves the problem that the vertical roll screw rod nut and the AWC oil cylinder cannot be replaced, is safe and efficient, does not need to disassemble other irrelevant components for replacement, saves the maintenance time and greatly reduces the labor intensity.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a thick plate edger mill pressure measurement lead screw changes device which characterized in that: the screw rod nut placing support is connected with the rear support and the front support into a whole through the connecting rod and the connecting pin shaft;
the front end support comprises a lower transverse positioning block, a front end support body, an upper transverse positioning block, a walking roller, a chain block hanging angle, a chain block chain guide wheel, a lifting lug, a guide roller, a guide support, a lead screw head fixing plate and a chain block, wherein the lower transverse positioning block and the upper transverse positioning block are respectively fixed on the lower part and the upper part of two sides of the front end support body;
the rear support comprises a transverse positioning block, a rear support body, walking rollers, a roller mounting base, chain block chain guide wheels, chain block hanging corners and a chain block, the transverse positioning block is welded on two sides of the rear support body, the roller mounting base is fixed on two sides of the rear support body, the walking rollers are fixed on the roller mounting base, the chain block hanging corners are welded on the rear support body, the chain block chain guide wheels are connected on the rear support body through bolts, one end of the chain block is hooked with the chain block hanging corners, and the chain at the other end is placed into the guide rollers;
the screw rod and nut placing support comprises a steel plate, a screw rod support, a screw rod, an AWC (active surface welding) oil cylinder, a nut support and an AWC (active surface welding) oil cylinder, the screw rod support, the AWC oil cylinder and the nut support are fixedly installed on the steel plate, the screw rod is placed on the screw rod support, and the AWC oil cylinder is placed on the AWC oil cylinder and the nut support.
2. The apparatus for changing the pressure tap of a thick plate edger according to claim 1, wherein: and the lower transverse positioning block and the upper transverse positioning block are fixed on the front end bracket body in a welding mode.
3. The apparatus for changing the pressure tap of a thick plate edger according to claim 1, wherein: two connecting rod connecting pin holes are formed in the top of the front end support body.
4. The apparatus for changing the pressure tap of a thick plate edger according to claim 1, wherein: and a lifting lug is arranged on the fixing plate at the head part of the screw rod.
5. The apparatus for changing the pressure tap of a thick plate edger according to claim 1, wherein: the roller mounting bases are welded to two sides of the rear support body.
6. The apparatus for changing the pressure tap of a thick plate edger according to claim 1, wherein: the walking rollers are arranged on the roller mounting base through pin shafts.
7. The apparatus for changing the pressure tap of a thick plate edger according to claim 1, wherein: two connecting rod connecting pin holes are formed in the top of the rear support body.
8. A method for replacing a pressure tap pin of a thick plate edger according to claim 1, comprising: comprises the following steps of (a) carrying out,
s1, removing the relevant connecting pieces of the screw rod, and respectively hoisting the rear bracket and the front bracket into a cross beam of the vertical rolling mill;
s2, placing the rear bracket and the front end bracket on the running track of the vertical roller, and respectively pushing the rear bracket and the front end bracket to proper positions;
s3, electrically inching a rotating screw rod or a manual turning screw rod, and inserting the head of the screw rod into a groove of a screw rod head fixing plate;
s4, judging whether the position of the lead screw head fixing plate is proper or not, and adjusting the position of the lead screw head fixing plate by a chain block until the position of the lead screw head fixing plate is proper;
s5, penetrating a bolt into the connecting and fixing hole to be connected with the threaded hole at the head of the screw rod;
s6, pulling the front end bracket by another chain block to drive the screw rod and the nut to move until the AWC oil cylinder and the nut move to a proper position to be moved out of the housing of the vertical rolling mill;
s7, fixing a steel wire rope on the rear support on the AWC oil cylinder, pulling a chain block to fix the AWC oil cylinder and a nut, and installing a connecting rod;
s8, continuously moving the front end bracket to drive the rear bracket, and moving the screw rod nut out of the housing of the vertical rolling mill;
s9, fixing the head of a screw rod by one end of a steel wire rope, enabling the steel wire rope at the other end to penetrate through a notch at the top of a rear support to hang the other end of the screw rod, removing a connecting bolt at the head of the screw rod and the steel wire rope, removing a connecting rod, respectively moving the rear support and a front support to two sides, lifting a screw rod nut out of a rolling mill, placing the screw rod nut on a screw rod nut placing support, and completing field disassembly;
s10, installing the screw rod and the screw nut, and reversing the steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611216049.6A CN108237503B (en) | 2016-12-26 | 2016-12-26 | Device and method for replacing pressure measuring screw rod of thick plate vertical rolling mill |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611216049.6A CN108237503B (en) | 2016-12-26 | 2016-12-26 | Device and method for replacing pressure measuring screw rod of thick plate vertical rolling mill |
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| CN108237503A CN108237503A (en) | 2018-07-03 |
| CN108237503B true CN108237503B (en) | 2020-03-06 |
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| CN201611216049.6A Active CN108237503B (en) | 2016-12-26 | 2016-12-26 | Device and method for replacing pressure measuring screw rod of thick plate vertical rolling mill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110587530B (en) * | 2019-09-20 | 2023-06-30 | 南京中船绿洲机器有限公司 | Device and method for replacing planetary gear deck of speed reducer |
| CN115476137A (en) * | 2022-07-05 | 2022-12-16 | 常熟科弘材料科技有限公司 | Replacement method of main oil cylinder of reciprocating rolling mill |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2001162461A (en) * | 1999-12-14 | 2001-06-19 | Nsk Ltd | Screwing device |
| CN201217014Y (en) * | 2008-05-23 | 2009-04-08 | 宝山钢铁股份有限公司 | Aligning vertical roll for hot-rolled edger mill |
| US8499436B2 (en) * | 2011-01-06 | 2013-08-06 | Wei Nan Shen | Tool device for dismantling joint |
| CN102310084B (en) * | 2011-08-26 | 2014-08-06 | 宁波中超机器有限公司 | Vertical roller mill |
| CN204525354U (en) * | 2015-01-22 | 2015-08-05 | 安徽新瑞重工股份有限公司 | A kind of replacing support roller device |
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