CN114210742A - Quick-dismantling guide device and short stress path rolling mill - Google Patents
Quick-dismantling guide device and short stress path rolling mill Download PDFInfo
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- CN114210742A CN114210742A CN202111565235.1A CN202111565235A CN114210742A CN 114210742 A CN114210742 A CN 114210742A CN 202111565235 A CN202111565235 A CN 202111565235A CN 114210742 A CN114210742 A CN 114210742A
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- transmission side
- supporting block
- upright post
- operation side
- guide
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
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- 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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Abstract
The invention relates to a quick-release guide device which comprises a box-shaped guide frame, an operation side supporting block and a transmission side supporting block, wherein the operation side supporting block and the transmission side supporting block are both arranged on a movable base of a rolling mill, an operation side upright post of the guide frame is detachably connected with the operation side supporting block, and the transmission side upright post of the guide frame is fixedly connected with the transmission side supporting block through a permanent fastener. In addition, a short stress path rolling mill provided with the quick-release guide and guard device is also provided. According to the invention, the operation side supporting block and the transmission side supporting block are arranged, the operation side upright post is detachably connected with the operation side supporting block, and the transmission side upright post is permanently and tightly connected with the transmission side supporting block, so that the guide frame is always positioned on the transmission side in the roll changing process, the guide frame is only required to be disassembled and assembled between the operation side upright post and the operation side supporting block on the operation side, the guide frame is not required to be disassembled, the roll changing efficiency can be effectively improved, the labor intensity is reduced, and the guide frame is prevented from being frequently disassembled and assembled to influence the installation precision and the working reliability.
Description
Technical Field
The invention belongs to the technical field of steel rolling, and particularly relates to a quick-release guide and guard device and a short-stress-path rolling mill with the quick-release guide and guard device.
Background
At present, rod and wire enterprises mostly select a short stress path rolling mill in a high-rigidity rolling mill in the projects of upgrading and reconstructing old plant equipment and building new plants. The roll changing time of the core of the rod and wire rolling mill directly influences the rhythm and efficiency of production; however, the conventional red ring rolling mill in the industry is limited by the structural characteristics of the guide frame, so that the guide frame must be disassembled when the roll is changed, and the guide frame is installed after the roll is changed, thereby increasing the roll changing time, reducing the production efficiency, influencing the installation precision of the guide frame and increasing the labor intensity of operators.
Disclosure of Invention
The invention relates to a quick-release guide and guard device and a short stress path rolling mill provided with the quick-release guide and guard device, which can at least solve part of defects in the prior art.
The invention relates to a quick-release guide device, which comprises a box-shaped guide frame, an operation side supporting block and a transmission side supporting block, wherein the operation side supporting block and the transmission side supporting block are both arranged on a movable base of a rolling mill, an operation side upright post of the guide frame is detachably connected with the operation side supporting block, and the transmission side upright post of the guide frame is fixedly connected with the transmission side supporting block through a permanent fastener.
As one embodiment, both ends of the upper beam of the guide and guard frame are provided with screw portions, the operating side screw portions penetrate through the operating side upright posts and the operating side support blocks and are locked by locking nuts, and the transmission side screw portions penetrate through the transmission side upright posts and the transmission side support blocks and are locked by locking nuts.
As one embodiment, a transmission side bearing block is arranged on the transmission side upright post, and the transmission side bearing block is convexly arranged towards the operation side and supports the bottom end of the upper cross beam;
and/or the operation side upright post is provided with an operation side bearing block, and the operation side bearing block is convexly arranged towards the transmission side and supports the bottom end of the upper cross beam.
As one embodiment, the operation side upright post and the operation side supporting block are connected in a positioning way through a guiding and positioning structure; and/or the transmission side upright post is connected with the transmission side supporting block in a positioning way through a guide positioning structure.
As one embodiment, the guiding and positioning structure includes a taper pin and a matching taper sleeve, and the taper pin and the taper sleeve are respectively disposed on the two corresponding members.
In one embodiment, the protruding pin length of the taper pin is adjustable.
As one embodiment, the quick-release guide and guard device further includes an anti-tilting mechanism for preventing the guide and guard frame from tilting.
As one embodiment, the anti-tilt mechanism includes an anti-tilt nut located on the transmission side and welded to the movable base, and an anti-tilt bolt screwed to the anti-tilt nut, and the anti-tilt bolt abuts against or is screwed to the transmission side pillar.
The invention also relates to a short stress path rolling mill, which comprises a movable base and a machine core arranged on the movable base, wherein the quick-release guide and guard device is arranged on the inlet side and/or the outlet side of the rolling mill.
As one embodiment, each of the operation-side support block and the transmission-side support block includes a horizontal support block and a vertical support block, the two horizontal support blocks are mounted on the movable base and respectively support two pull rods, and the two vertical support blocks are respectively connected to the operation-side column and the transmission-side column.
The invention has at least the following beneficial effects:
according to the invention, the operation side supporting block and the transmission side supporting block are arranged, the operation side upright post is detachably connected with the operation side supporting block, and the transmission side upright post is permanently and tightly connected with the transmission side supporting block, so that the guide frame is always positioned on the transmission side in the roll changing process, the guide frame is only required to be disassembled and assembled between the operation side upright post and the operation side supporting block on the operation side, the guide frame is not required to be disassembled, the roll changing efficiency can be effectively improved, the labor intensity is reduced, and the guide frame is prevented from being frequently disassembled and assembled to influence the installation precision and the working reliability.
The invention also has the following beneficial effects:
the short stress path rolling mill provided by the invention has the advantages of simple structure, stability, reliability, convenience and rapidness in maintenance and repair, and can ensure the on-site production rhythm and improve the production efficiency; the method can ensure the characteristics of low rolling gravity center and large rolling capacity of the original red ring rolling mill, and has the advantages of high overall transverse rigidity of the chuck type rolling mill, high roll dismounting efficiency and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a front view of a quick release guide device according to an embodiment of the present invention;
fig. 2 is an isometric view of a quick release guide and guard device provided in an embodiment of the present invention;
fig. 3 is a schematic view illustrating an assembly structure of the operation side support block and the operation side column of fig. 1.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The embodiment of the invention provides a quick-release guide and guard device, which comprises a box-shaped guide and guard frame 3, wherein the box-shaped guide and guard frame 3 is a conventional device in the field, in the embodiment, only an upper cross beam 33, an operation side upright column 31 and a transmission side upright column 32 related to the structure are described, and the bottom structure of the guide and guard frame 3 is not described in detail.
As shown in fig. 1-3, the guide and guard device further comprises an operation side support block 21 and a transmission side support block 22, wherein the operation side support block 21 and the transmission side support block 22 are both disposed on the movable base 1 of the rolling mill, the operation side upright 31 of the guide and guard frame 3 is detachably connected with the operation side support block 21, and the transmission side upright 32 of the guide and guard frame 3 is fastened and connected with the transmission side support block 22 through a permanent fastener 41.
The transmission side upright post 32 and the transmission side supporting block 22 form permanent fastening connection, so that the guide frame 3 can be always closed on the transmission side supporting block 22 in the process of separating and combining the frames, and the rapid disassembly and assembly are convenient. Preferably, the permanent fastening member 41 is a fastening screw, which satisfies the requirement of permanent fastening; it will be appreciated that the connection of the drive-side stud 32 to the drive-side support block 22 by a plurality of permanent fasteners 41 can improve the reliability of the connection. In one embodiment, as shown in fig. 1, a bidirectional permanent fastening connection is adopted, which can effectively improve the connection reliability between the guide frame 3 and the transmission side support block 22, specifically, part of the fastening screws are screwed from the transmission side upright post 32, and part of the fastening screws are screwed from the transmission side support block 22. When the fastening screw is screwed from the drive side support block 22 and the corresponding screw hole on the drive side pillar 32 is a through hole, a waterproofing treatment, such as welding of a waterproof cover, is performed at the through hole to prevent cooling water or scale from entering the hole.
For the connection between the operation-side column 31 and the operation-side support block 21, preferably, a bolt fitting manner is employed. It is understood that the connection of the operation-side column 31 to the operation-side support block 21 by the plurality of fitting bolts 42 can improve the connection reliability. Further, the assembling bolt 42 is a stud bolt, and both ends of the bolt are threaded ends, so that the assembling and disassembling operations are facilitated. In one embodiment, the partially fitting bolt 42 has one end screwed into the operation-side column 31 and the other end protruding outside the operation-side support block 21 and locked by a fitting nut, and the partially fitting bolt 42 has one end screwed into the operation-side support block 21 and the other end protruding outside the operation-side column 31 and locked by a fitting nut, so that a two-way detachable connection form can be formed, and the connection reliability between the operation-side column 31 and the operation-side support block 21 can be effectively improved. The assembling nut can also adopt a nut, and preferably adopts a waterproof nut, so that the waterproofness of the guide and guard device can be improved.
Alternatively, as shown in fig. 3, the stud bolt is formed with a ring wing, and a counter bore is correspondingly formed on the operation-side support block 21, and the ring wing is accommodated in the large-bore section of the counter bore; this design can play locking effect, improves the reliability of being connected between operation side stand 31 and operation side supporting block 21. Furthermore, the ring wing is also inserted with a locking pin 421, the other end of the locking pin 421 is inserted into the operation side column 31 or the operation side support block 21, and the locking pin 421 can limit the movement of the stud bolt, so as to further play a locking effect; preferably, the anti-loose pin 421 is assembled with a drilled and reamed hole on site after the stud bolts are fastened.
Further preferably, as shown in fig. 1 and 2, both ends of the upper beam 33 of the guide and guard frame 3 are provided with screw portions, the operating side screw portion penetrates through the operating side column 31 and the operating side support block 21 and is locked by a lock nut 43, and the driving side screw portion penetrates through the driving side column 32 and the driving side support block 22 and is locked by a lock nut 43. The locking nut 43 may be a nut, preferably a waterproof nut, which can improve the waterproofness of the guide and guard device. Based on the structure, the rolling mill has the function of not needing to disassemble the guide and guard frame 3 when the roll is disassembled, thereby being convenient for rapidly replacing the roll; meanwhile, the connection stability and reliability of the guide frame 3 and the left and right support blocks can be further improved by combining the structure that the operation side upright column 31 is detachably connected with the operation side support block 21 and the transmission side upright column 32 is permanently and fixedly connected with the transmission side support block 22.
The machine frame needs to be separated and then combined in each roll changing process, the separation is easy but the combination is not easy, particularly, the upper cross beam 33 is in a cantilever form like the guide frame 3 and slightly inclined at a small angle, and the position of the upper cross beam 33 can be greatly changed on the operating side, so that the threaded end of the operating side of the upper cross beam 33 cannot be accurately screwed with the operating side supporting block 21. Therefore, preferably, as shown in fig. 1, a transmission side supporting block 461 is provided on the transmission side upright 32, and the transmission side supporting block 461 is convexly provided to the operation side and supports the bottom end of the upper cross beam 33; and/or, an operation side supporting block 462 is arranged on the operation side upright post 31, and the operation side supporting block 462 is arranged to protrude towards the transmission side and supports the bottom end of the upper cross beam 33. The driving side support block 461 can effectively support the upper beam 33, so as to prevent the upper beam 33 from inclining when the machine frame is combined, and prevent the upper beam 33 from rotating to influence the operation of the guide and guard pressing device when the locking nut 43 is fastened; the operation-side bearing block 462 described above can also perform this function. The above-described drive-side bearer block 461 and the operation-side bearer block 462 may take the form of a bracket; it is preferable that threaded holes are drilled to install the transmission side bearing block 461 and the operation side bearing block 462 after the installation on site, so that the accuracy of the installation position can be ensured.
Further, when the operation-side receiving block 462 is provided, the top surface of the extending end of the operation-side receiving block 462 is an inclined surface inclined downward in the extending direction. The so-called extension end, that is, the end of the operation-side holding block 462 close to the transmission side; the direction of extension is the direction extending from the operating side to the drive side. The inclined surface serves as a guide to ensure that the upper cross member 33 is correctly guided into the threading operation side support block 21 when the frames are combined.
Further optimizing the quick-release guide and guard device, the operation side upright post 31 is connected with the operation side supporting block 21 in a positioning manner through a guiding and positioning structure 45; and/or the transmission side upright post 32 is connected with the transmission side supporting block 22 in a positioning way through a guide positioning structure 45. By arranging the guiding and positioning structure 45, the connection precision of the alignment between the operation side upright column 31 and the operation side support block 21 and the connection precision of the alignment between the transmission side upright column 32 and the transmission side support block 22 can be improved, and the working reliability of the guide frame 3 is ensured. The guiding and positioning structure 45 includes, but is not limited to, the following structures:
as shown in fig. 1 and 3, the guiding and positioning structure 45 includes a taper pin 451 and a matching taper sleeve 452, and the taper pin 451 and the taper sleeve 452 are respectively disposed on the two corresponding members. The taper pin 451 is matched with the taper sleeve 452, so that not only can a positioning function be realized, but also a guiding function is realized when the upright post and the corresponding supporting block are close to each other; optionally, the included angle between the conical surface of the conical pin 451 and the horizontal plane is about 10 ° (controllable in the range of 8 ° to 15 °). In one embodiment, the taper pin 451 is made of cast aluminum brass with the trade name ZCuZn25Al6Fe3Mn3, and can meet the requirements of field production; the taper sleeve 452 is preferably formed by surface quenching 42crmo materials.
Preferably, as shown in fig. 3, the taper sleeve 452 is open at two ends, and a vent hole 455 is formed in a member provided with the taper sleeve 452, the vent hole 455 is communicated with an inner cavity of the taper sleeve 452, so that a venting effect can be achieved when the taper pin 451 is assembled with the taper sleeve 452, and furthermore, dry oil can be injected into the vent hole 455, so that the guide positioning structure 45 can be prevented from being corroded by entering of sewage and iron oxide scales while the taper pin 451 is lubricated in cooperation with the taper sleeve 452. In this embodiment, the taper sleeve 452 is disposed on the upright post of the guide frame 3.
Preferably, the length of the protruding pin of the taper pin 451 is adjustable, and by adjusting the length of the protruding pin of the taper pin 451, the mounting surface gaps between the operation-side column 31 and the operation-side support block 21 and between the transmission-side column 32 and the transmission-side support block 22 can be reduced or even eliminated, that is, the operation-side column 31 and the operation-side support block 21 are attached as much as possible, and the transmission-side column 32 and the transmission-side support block 22 are attached as much as possible, so that the mounting accuracy of the guide frame 3 is improved, and the production quality of the rolling mill is improved. In one embodiment, as shown in fig. 3, the taper pin 451 includes a cylindrical section and a frustum section, and an insertion hole is provided on the corresponding member for inserting the cylindrical section, so that the adjustment of the protruding pin length (that is, the length of the taper pin 451 protruding from the insertion hole) can be achieved by increasing or decreasing the adjusting pad 453 on the bottom of the insertion hole; alternatively, the taper pin 451 may be fixed in the fitting hole by a taper pin set screw 454.
Further, as shown in fig. 1, two groups of guiding and positioning structures 45 are arranged on the transmission side and the operation side, and a connecting line between the two groups of guiding and positioning structures 45 on each side is not parallel or perpendicular to the rolling center line, that is, a certain included angle is formed between the connecting line and the rolling center line, the included angle is preferably 45-70 degrees, preferably 60 degrees, so that the positioning accuracy and the accurate matching of the guide frame 3 in the later operation of changing the roll and opening and closing the frame are ensured; more preferably, the connecting line intersects with a rolling center line.
Because the guide frame 3 closes in the transmission side always, and after driving side frame and operation side frame are separated in the roll change operation, the focus of guide frame 3 is encorbelmented, after long-time the use, especially after frequent roll change operation, can lead to the cooperation clearance between guide frame 3 and the transmission side support seat to increase, the condition that appears guide frame 3 slope. Correspondingly, the quick-release guide device further comprises an anti-tilting mechanism for preventing the guide frame 3 from tilting so as to improve the overall matching precision of the guide device. In one embodiment, the anti-tilt mechanism comprises an anti-tilt nut 472 located on the transmission side and welded to the movable base 1, and an anti-tilt bolt 471 screwed on the anti-tilt nut 472, the anti-tilt bolt 471 abutting or being screwed with the transmission side upright post 32; through the cooperation of the anti-tilt bolt 471 of the lower part and the permanent fastener 41 of the upper part, the guide and guard frame 3 can be prevented from tilting well, the whole frame is ensured to have good rigidity and installation accuracy all the time in normal production, and the roll changing process is stable, safe and reliable.
The guide and guard device that this embodiment provided, set up operation side bracer 21 and transmission side bracer 22, and operation side stand 31 can be dismantled with operation side bracer 21 and be connected, transmission side stand 32 and the permanent fastening connection of transmission side bracer 22, guarantee to be located the transmission side all the time at roll change in-process guide and guard frame 3, only need to operate the dismouting between side stand 31 and the operation side bracer 21 at the operation side can, need not to pull down guide and guard frame 3, can improve roll change efficiency effectively, and the reduction intensity of labour, avoid frequent dismouting guide and guard frame 3 and influence its installation accuracy and operational reliability.
Example two
The embodiment of the invention provides a short-stress-path rolling mill, which comprises a movable base 1 and a machine core arranged on the movable base 1, wherein the quick-release guide and guard device provided by the first embodiment is arranged on the inlet side and/or the outlet side of the rolling mill. The cooperation between the movement, the movable base 1 and the guiding and guarding device is the conventional structure in the art or has been described in the first embodiment, and will not be described herein.
The rolling mill is preferably a red ring rolling mill, and other structures of the red ring rolling mill are not described in detail herein.
Preferably, as shown in fig. 1 and 2, each of the operation-side support block 21 and the transmission-side support block 22 includes a horizontal support block and a vertical support block, the horizontal support blocks are mounted on the movable base 1 and respectively support two pull rods (a guide device arranged on the inlet side of the rolling mill, i.e., an inlet-side pull rod, correspondingly, and a guide device arranged on the outlet side of the rolling mill, i.e., an outlet-side pull rod, correspondingly), and the vertical support blocks are respectively connected to the operation-side upright 31 and the transmission-side upright 32. The support block is preferably detachably mounted on the movable base 1, for example, the horizontal support block is fixed on the movable base 1 by a mounting bolt 44. The special-shaped supporting blocks are adopted to simultaneously support and fix the pull rod and the guide and guard frame 3, a box-type stress closed loop structure is formed on the inlet side of the rolling mill, and compared with the conventional inlet structure of the rolling mill, the improvement of the embodiment greatly improves the integral rigidity of the inlet side of the rolling mill.
The short-stress-path rolling mill provided by the embodiment has the advantages of simple structure, stability, reliability, convenience and rapidness in maintenance and repair, and can ensure the on-site production rhythm and improve the production efficiency; the method can ensure the characteristics of low rolling gravity center and large rolling capacity of the original red ring rolling mill, and has the advantages of high overall transverse rigidity of the chuck type rolling mill, high roll dismounting efficiency and the like.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a but quick detach leads and defends device, includes box guide frame, its characterized in that: still including operation side bracer and transmission side bracer, operation side bracer with transmission side bracer all locates on the movable base of rolling mill, the operation side stand of guide frame with operation side bracer can dismantle the connection, the transmission side stand of guide frame pass through permanent fastener with transmission side bracer fastening connection.
2. The quick release guide and guard device according to claim 1, wherein: the two ends of the upper beam of the guide frame are provided with screw rod parts, the operating side screw rod part penetrates through the operating side upright post and the operating side supporting block and is locked through a locking nut, and the transmission side screw rod part penetrates through the transmission side upright post and the transmission side supporting block and is locked through a locking nut.
3. The quick release guide and guard device according to claim 2, wherein: the transmission side upright post is provided with a transmission side bearing block which is arranged to protrude towards the operation side and supports the bottom end of the upper cross beam;
and/or the operation side upright post is provided with an operation side bearing block, and the operation side bearing block is convexly arranged towards the transmission side and supports the bottom end of the upper cross beam.
4. The quick release guide and guard device according to claim 1, wherein: the operation side upright post is connected with the operation side supporting block in a positioning way through a guiding and positioning structure; and/or the transmission side upright post is connected with the transmission side supporting block in a positioning way through a guide positioning structure.
5. The quick release guide and guard device according to claim 4, wherein: the guiding and positioning structure comprises a taper pin and a taper sleeve which is matched with the taper pin, and the taper pin and the taper sleeve are respectively arranged on the two corresponding components.
6. The quick release guide and guard device according to claim 5, wherein: the length of the protruding pin of the taper pin is adjustable.
7. The quick release guide and guard device according to claim 1, wherein: also comprises an anti-tilting mechanism for preventing the guide frame from tilting.
8. The quick release guide and guard device according to claim 7, wherein: the anti-tilting mechanism comprises an anti-tilting nut which is positioned on the transmission side and welded on the movable base and an anti-tilting bolt which is screwed on the anti-tilting nut, and the anti-tilting bolt is abutted or screwed with the transmission side upright post.
9. The utility model provides a short stress path rolling mill, includes movable base and locates the core on the movable base, its characterized in that: the quick-release guide and guard device as claimed in any one of claims 1 to 8 is arranged on the inlet side and/or outlet side of the rolling mill.
10. The short stress path rolling mill of claim 9, wherein: the operation side supporting block and the transmission side supporting block respectively comprise a horizontal supporting block and a vertical supporting block, the two horizontal supporting blocks are respectively installed on the movable base and respectively support the two pull rods, and the two vertical supporting blocks are respectively connected with the operation side upright post and the transmission side upright post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111565235.1A CN114210742B (en) | 2021-12-20 | 2021-12-20 | Quick-dismantling guide device and short stress line rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111565235.1A CN114210742B (en) | 2021-12-20 | 2021-12-20 | Quick-dismantling guide device and short stress line rolling mill |
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| Publication Number | Publication Date |
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| CN114210742A true CN114210742A (en) | 2022-03-22 |
| CN114210742B CN114210742B (en) | 2023-05-26 |
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| CN216779861U (en) * | 2021-12-20 | 2022-06-21 | 中冶南方工程技术有限公司 | Quick-dismantling guide device and short stress path rolling mill |
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| CN114210742B (en) | 2023-05-26 |
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