CN107159744B - F-shaped portal channel steel correcting device - Google Patents

F-shaped portal channel steel correcting device Download PDF

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Publication number
CN107159744B
CN107159744B CN201710220631.8A CN201710220631A CN107159744B CN 107159744 B CN107159744 B CN 107159744B CN 201710220631 A CN201710220631 A CN 201710220631A CN 107159744 B CN107159744 B CN 107159744B
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China
Prior art keywords
plate
straightening
channel steel
pressure plate
portal channel
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CN201710220631.8A
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Chinese (zh)
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CN107159744A (en
Inventor
李雪涛
张戈
李山峰
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Shandong Iron and Steel Group Co Ltd SISG
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Shandong Iron and Steel Group Co Ltd SISG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/14Recontouring
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/16Heating or cooling

Abstract

The invention provides an F-shaped portal channel steel correcting device, which comprises: the movable side pressure plate comprises a bottom plate, a fixed side pressure plate, an upper pressure plate, a movable side pressure plate and a driving device, wherein the bottom plate is a flat plate placed horizontally, the fixed side pressure plate is vertically arranged on the upper surface of one end of the bottom plate, one end of the upper pressure plate is connected with the top end of the fixed side pressure plate, the other end of the upper pressure plate extends towards the other end of the bottom plate, the driving device is arranged on the upper surface of the other end of the bottom plate, a piston rod of the driving device extends towards one end of the bottom plate, the end of the piston rod is connected with the movable side pressure plate and can drive the movable side pressure plate to move, and the upper surface of the bottom plate, one side surface of the fixed side pressure plate, the lower surface of the upper pressure plate and one side surface of the movable side pressure plate. This device can carry out comprehensive accurate correction to deformed steel.

Description

F-shaped portal channel steel correcting device
Technical Field
The invention relates to the field of steel deep processing, in particular to the field of special-shaped steel reshaping, and discloses an F-shaped portal channel steel correcting device, which belongs to a brand-new special tool and can improve the reshaping precision and the working efficiency of the special-shaped steel.
Background
The magnetic suspension train is the direction of future high-speed traffic development, has the advantages of high speed, low energy consumption, low pollution and the like, and in a magnetic suspension train running system, a roller way made of F-shaped steel is an important part and is also the most difficult part to process; the F-shaped steel is used as deformed steel, the rolling force borne by the F-shaped steel in the rolling process is not uniform, the stress generated in the cooling process is not uniform, and after the F-shaped steel passes through a thermal straightening machine, the F-shaped steel is easy to generate cooling deformation in the rolling direction due to unbalance and incomplete stress relief, so that the use of the next process is influenced; at present, no special F-shaped steel low-temperature straightening device exists, only a jack is used for straightening in the past, the straightening mode is low in precision, secondary damage is easily caused to steel, and therefore a special device needs to be designed for straightening the steel.
Disclosure of Invention
The invention aims at the precise straightening of the F-shaped steel, so that a corresponding set of devices is provided for realizing the low-temperature straightening of the F-shaped steel. The device can improve the correction precision and the correction efficiency.
In order to achieve the above purpose, the invention provides the following technical scheme:
an F-shaped portal channel steel correcting device, wherein the F-shaped portal channel steel consists of a web plate, wing plates horizontally extending out of the web plate, and straight legs and inclined legs positioned at two end parts of the web plate, and the correcting device comprises: the movable side pressure plate comprises a bottom plate, a fixed side pressure plate, an upper pressure plate, a movable side pressure plate and a driving device, wherein the bottom plate is a flat plate placed horizontally, the fixed side pressure plate is vertically arranged on the upper surface of one end of the bottom plate, one end of the upper pressure plate is connected with the top end of the fixed side pressure plate, the other end of the upper pressure plate extends towards the other end of the bottom plate, the driving device is arranged on the upper surface of the other end of the bottom plate, a piston rod of the driving device extends towards one end of the bottom plate, the end of the piston rod is connected with the movable side pressure plate and can drive the movable side pressure plate to move, and the upper surface of the bottom plate, one side surface of the fixed side pressure plate, the lower surface of the upper pressure plate and one side surface of the movable side pressure plate.
Further, in the above-described F-shaped gantry channel steel correction device, the driving device is fixed to the base plate, and preferably, the driving device is a hydraulic cylinder.
further, in the F-shaped gantry channel steel correction device, a rectangular protrusion is provided at a position on the bottom plate where the driving device is fixed.
Further, in the above-mentioned F type portal channel steel correcting device, the continuous periphery of pterygoid lamina and web forms first lateral surface, the tip of pterygoid lamina forms the second lateral surface, the pterygoid lamina, straight leg, the web with the periphery that the inboard of oblique leg links forms the third lateral surface, the outside of oblique leg forms the fourth lateral surface.
Further, in the above apparatus for correcting an F-type portal channel, a first correction plate is further connected to an upper surface of the base plate, the first correction plate covers the first outer surface of the F-type portal channel, and the base plate and the first correction plate are preferably connected by a counter bore bolt.
Further, in the above-described device for correcting the F-shaped gantry channel, a second correction plate is further connected to one side surface of the fixed side pressure plate, and one side surface of the second correction plate covers the second outer side surface of the F-shaped gantry channel.
Further, in the above device for correcting the F-shaped gantry channel, a third correction plate is further connected to a lower surface of the upper platen, the lower surface of the third correction plate covers the third outer side surface of the F-shaped gantry channel, and the upper platen and the third correction plate are preferably connected by a counter bore bolt.
further, in the above-described F-type portal channel steel correction device, a fourth correction plate may be connected to one side surface of the moving side plate, and one side surface of the fourth correction plate may cover the fourth outer side surface of the F-type portal channel steel.
Further, in the above-described F-shaped gantry channel steel correction device, the top end of the fixed side platen is widened to improve the strength of connection with the upper platen, and the fixed side platen is connected with the upper platen by a screw.
Further, among the above-mentioned F type portal channel-section steel correcting device, still including preheat the frame, be used for right F type portal channel-section steel preheats, preferably, it is formed by the steel pipe welding to preheat the frame, the welding has a plurality of heating nozzle on the steel pipe, and a plurality of heating nozzle evenly set up the inboard at the steel pipe, and the combustion gas is by connecting side pipeline access on the steel pipe.
The device has the working principle that a space similar to the section of the deformed steel blank is formed, the deformed steel is comprehensively corrected under the action of the hydraulic cylinder device, the dimensional requirement is met, and the service performance of the deformed steel is ensured.
The invention provides a set of device for correcting the deformed steel (F-shaped portal channel steel), which can perform comprehensive and accurate correction on the deformed steel, improve the correction precision and the correction efficiency, ensure that the deformed steel meets the size requirement and ensures the use performance of the deformed steel.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. Wherein:
FIG. 1 is a schematic installation view of an embodiment of the present invention;
FIG. 2 is a schematic illustration of a portion of the orthotic device of the embodiment of FIG. 1;
FIG. 3 is a left side view of the preheating frame section of the embodiment of FIG. 1;
FIG. 4 is a schematic top view of the pre-heat frame of FIG. 3;
FIG. 5 is a schematic structural diagram of an F-shaped portal channel steel;
Fig. 6 is an outer side view of an F-shaped portal channel.
Description of reference numerals: 1, a bottom plate; 2 fixing a side pressing plate; 3, pressing the upper plate; 4, moving a side pressing plate; 5 a fourth correcting plate; 6 a third correcting plate; 7 a first straightening plate; 8 a second corrective plate; 9, a screw rod; 10 bolt holes and 11 hydraulic cylinders; 12 preheating the frame; 13 heating the nozzle; a 14-side pipeline; 15, a bulge; 30F type portal channel steel; 31 wing plates; 32 webs; 33 straight legs; 34 an inclined leg; 35 a first outer side; 36 a second outer side; 37 a third outer side; 38 fourth outer side.
Detailed Description
the present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. The various examples are provided by way of explanation of the invention, and not limitation of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit thereof. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and equivalents thereof.
In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are for convenience of description of the present invention only and do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" used herein should be interpreted broadly, and may include, for example, a fixed connection or a detachable connection; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
One or more examples of the invention are illustrated in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the invention. As used herein, the terms "first," "second," "third," and "fourth" may be used interchangeably to distinguish one component from another and are not intended to denote the position or importance of the individual components.
As shown in fig. 1 to 6, according to an embodiment of the present invention, there is provided an apparatus for straightening an F-type portal channel 30, the F-type portal channel 30 being composed of a web 32, a wing 31 horizontally extending from the web 32, a straight leg 33 and an inclined leg 34 at both ends of the web 32, the apparatus comprising: the device comprises a bottom plate 1, fixed side pressing plates 2, an upper pressing plate 3, a movable side pressing plate 4 and a driving device, wherein the bottom plate 1 is a flat plate placed horizontally, the fixed side pressing plates 2 are vertically arranged on the upper surface of one end of the bottom plate 1, one end of the upper pressing plate 3 is connected with the top end of the fixed side pressing plates 2, the other end of the upper pressing plate 3 extends towards the other end of the bottom plate 1, the driving device is arranged on the upper surface of the other end of the bottom plate 1, a piston rod of the driving device extends towards one end of the bottom plate 1, the end of the piston rod is connected with the movable side pressing plates 4 and can drive the movable side pressing plates 4 to move, and the upper surface of the bottom plate 1, one side surface of the fixed side pressing plates 2, the lower surface of the upper.
The working principle of the correcting device is that a space similar to the section of a special-shaped steel billet (F-shaped portal channel steel 30) is formed, the special-shaped steel billet is comprehensively corrected under the action of a driving device, the dimensional requirement is met, and the using performance of the special-shaped steel billet is guaranteed.
Further, a driving device is fixed on the base plate 1, preferably, the driving device is a hydraulic cylinder 11. The rectangular bulge 15 is arranged at the position of the bottom plate 1 where the driving device is fixed, so that the connection strength between the driving device and the bottom plate 1 is improved, the connection between the end part of the piston rod and the middle section of the movable side pressing plate 4 is facilitated, and the movable side pressing plate 4 is driven to move stably.
further, the connected outer peripheries of the wing plate 31 and the web plate 32 form a first outer side surface 35, the end portion of the wing plate 31 forms a second outer side surface 36, the connected outer peripheries of the wing plate 31, the straight leg 33, the web plate 32 and the inclined leg 34 form a third outer side surface 37, and the outer side of the inclined leg 34 forms a fourth outer side surface 38.
The upper surface of the bottom plate 1 is further connected with a first correcting plate 7, the upper surface of the first correcting plate 7 covers a first outer side face 35 of the F-shaped portal channel steel 30, and the shape of the upper surface of the first correcting plate 7 corresponds to that of the first outer side face 35 of the F-shaped portal channel steel 30. Preferably, the base plate 1 is bolted with the first correcting plate 7 through counterbores, and the embodiment in fig. 2 is bolted through three counterbores, so that the connection is stable. The base plate 1 is connected to the first leveling plate 7 by countersunk bolts inserted into the bolt holes 10, so that the connection is firm without affecting the leveling effect.
And one side surface of the fixed side pressing plate 2 is also connected with a second correcting plate 8, one side surface of the second correcting plate 8 covers the second outer side surface 36 of the F-shaped portal channel steel 30, and one side surface of the second correcting plate 8 corresponds to the shape of the second outer side surface 36 of the F-shaped portal channel steel 30. Preferably, the fixed side pressure plate 2 and the second correcting plate 8 are connected through countersunk bolts, and the embodiment in FIG. 2 is connected through three countersunk bolts, so that the connection is stable. The fixed side pressure plate 2 and the second correcting plate 8 are connected through the bolt holes 10 inserted by counter bore bolts, so that the connection is firm while the correcting effect is not influenced.
The lower surface of the upper pressure plate 3 is also connected with a third correcting plate 6, the lower surface of the third correcting plate 6 covers the third outer side surface 37 of the F-shaped gantry channel steel 30, and the lower surface of the third correcting plate 6 corresponds to the shape of the third outer side surface 37 of the F-shaped gantry channel steel 30. Preferably, the upper pressure plate 3 and the third correcting plate 6 are connected through countersunk bolts, and the embodiment in fig. 2 is connected through three countersunk bolts, so that the connection is stable. The upper pressure plate 3 is connected with the third correcting plate 6 through the bolt holes 10 inserted by counter bore bolts, so that the connection is firm while the correcting effect is not influenced.
And a fourth correcting plate 5 is further connected to one side surface of the moving side pressing plate 4, one side surface of the fourth correcting plate 5 covers the fourth outer side surface 38 of the F-shaped gantry channel steel 30, and one side surface of the fourth correcting plate 5 corresponds to the shape of the fourth outer side surface 38 of the F-shaped gantry channel steel 30. Preferably, the movable side pressure plate 4 and the fourth correction plate 5 are connected through countersunk bolts, and the embodiment in fig. 2 is connected through three countersunk bolts, so that the connection is stable. The moving side pressure plate 4 and the fourth correcting plate 5 are connected by inserting counter bore bolts into the bolt holes 10, so that the connection is firm while the correcting effect is not influenced.
The fourth correcting plate 5, the third correcting plate 6, the first correcting plate 7 and the second correcting plate 8 together form a complete correcting model. The provision of the fourth and third straightening plates 5, 6, 7 and 8 provides the straightening device with greater flexibility in that one set of devices can accommodate the straightening of a plurality of sizes of F-beam channel 30 by replacing one or more straightening plates.
Further, the fixed side platen 2 is widened at the top end thereof so as to improve the strength of connection with the upper platen 3, and the fixed side platen 2 is connected with the upper platen 3 by screws 9.
The preheating frame 12 is further included and used for preheating the F-shaped portal channel steel 30. As shown in fig. 1, the pre-heat frame 12 is installed in front of the orthotic device. As shown in fig. 3 to 4, the preheating frame 12 is formed by welding steel pipes, the heating nozzles 13 are welded on the steel pipes, the combustion gas is introduced from the side pipeline 14, and the F-shaped gantry channel steel 30 can eliminate part of stress after being heated, so as to prepare for next correction.
When the straightening device of the embodiment of the present invention is operated, the respective straightening plates are installed on the respective connected press plates, such as the first straightening plate 7 connected to the base plate 1, the second straightening plate 8 connected to the fixed side press plate 2, the third straightening plate 6 connected to the upper press plate 3, and the fourth straightening plate 5 connected to the moving side press plate 4. When the machine starts to work, the movable side pressing plate 4, the bottom plate 1, the fixed side pressing plate 2 and the upper pressing plate 3 form an F-shaped frame under the pushing of a hydraulic cylinder, and the F-shaped portal channel steel 30 passes through the correcting device after reaching a certain temperature through the preheating frame 12, so that the aim of integral correction is fulfilled.
This embodiment provides a set of device in order to realize the correction of deformed steel (F type portal channel-section steel 30), can carry out comprehensive accurate correction to deformed steel, has improved and has corrected precision and correction efficiency, guarantees to accord with the dimensional requirement, guarantees its performance.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
1. The installation is flexible;
2. the correction precision is high;
3. The working efficiency is high.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. The utility model provides a F type portal channel-section steel orthotic devices, F type portal channel-section steel by the web, follow the pterygoid lamina that the web level is stretched out, be located the straight leg and the oblique leg at web both ends constitute, its characterized in that, orthotic devices includes: a bottom plate, a fixed side pressure plate, an upper pressure plate, a movable side pressure plate and a driving device, wherein,
The bottom plate is a flat plate which is horizontally placed, the fixed side pressure plate is vertically arranged on the upper surface of one end of the bottom plate, one end of the upper pressure plate is connected with the top end of the fixed side pressure plate, the other end of the upper pressure plate extends towards the other end of the bottom plate, the driving device is arranged on the upper surface of the other end of the bottom plate, a piston rod of the driving device extends towards one end of the bottom plate, the end part of the piston rod is connected with the movable side pressure plate and can drive the movable side pressure plate to move,
The upper surface of the bottom plate, one side surface of the fixed side pressing plate, the lower surface of the upper pressing plate and one side surface of the movable side pressing plate jointly surround the outer side surface of the F-shaped portal channel steel;
The driving device is fixed on the bottom plate, a rectangular bulge is arranged at the position, where the driving device is fixed, on the bottom plate, and the end part of the piston rod is connected with the middle section of the movable side pressing plate;
the front of the correcting device is further provided with a preheating frame, the preheating frame is used for preheating the F-shaped portal channel steel, and the F-shaped portal channel steel passes through the preheating frame and then penetrates through the correcting device to be corrected.
2. The F-portal channel steel straightening device according to claim 1, characterized in that the driving device is a hydraulic cylinder.
3. The F-portal channel steel straightening device as claimed in claim 1, wherein the connected peripheries of the wing plate and the web form a first outer side surface, the end portion of the wing plate forms a second outer side surface, the connected peripheries of the wing plate, the straight leg, the web and the inner side of the inclined leg form a third outer side surface, and the outer side of the inclined leg forms a fourth outer side surface.
4. The apparatus for straightening F-portal channel steel according to claim 3, wherein a first straightening plate is further connected to the upper surface of the base plate, the upper surface of the first straightening plate covering the first outer side surface of the F-portal channel steel.
5. the F-portal channel steel straightening device according to claim 4, wherein the base plate and the first straightening plate are bolted through counter bores.
6. the apparatus for straightening F-shaped portal channel steel according to claim 3, wherein a second straightening plate is further connected to one side surface of the fixed side plate, and one side surface of the second straightening plate covers the second outer side surface of the F-shaped portal channel steel.
7. The F-portal channel steel straightening device as claimed in claim 6, wherein the fixed side pressure plate and the second straightening plate are connected through countersunk bolts.
8. The apparatus for straightening F-portal channel steel according to claim 3, wherein a third straightening plate is further connected to a lower surface of the upper platen, and a lower surface of the third straightening plate covers the third outer side surface of the F-portal channel steel.
9. The F-portal channel steel straightening device according to claim 8, wherein the upper pressure plate and the third straightening plate are bolted through counter bores.
10. The apparatus for straightening F-shaped portal channel steel according to claim 3, wherein a fourth straightening plate is further connected to one side surface of the moving side plate, and one side surface of the fourth straightening plate covers the fourth outer side surface of the F-shaped portal channel steel.
11. The F-portal channel steel straightening device according to claim 10, wherein the moving side pressing plate and the fourth straightening plate are connected through countersunk bolts.
12. The F-shaped portal channel steel straightening device as claimed in claim 1, wherein the top end of the fixed side pressure plate is widened so as to improve the connection strength with the upper pressure plate, and the fixed side pressure plate is connected with the upper pressure plate through a screw.
13. The F-shaped gantry channel steel straightening device as claimed in claim 1, wherein the preheating frame is formed by welding steel pipes, a plurality of heating nozzles are welded on the steel pipes and uniformly arranged on the inner sides of the steel pipes, and combustion gas is introduced from side pipelines connected to the steel pipes.
CN201710220631.8A 2017-04-06 2017-04-06 F-shaped portal channel steel correcting device Active CN107159744B (en)

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CN107159744B true CN107159744B (en) 2019-12-17

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CN108500088B (en) * 2018-03-13 2019-09-27 涡阳凯达机械制造有限公司 A kind of mechanical device for the roasting Z-shaped purlin of correction of fire
CN109500149B (en) * 2019-01-03 2023-09-05 山东钢铁股份有限公司 B type portal channel-section steel roll formula low temperature orthotic devices

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RU2215606C2 (en) * 2001-11-21 2003-11-10 Государственное унитарное предприятие Уральское отделение Всероссийского научно-исследовательского института железнодорожного транспорта Apparatus for upsetting and mounting in heated state wear-resistant cover plates in ports of journal boxes of lateral frame of truck
DE10329525B4 (en) * 2003-06-30 2006-02-09 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH Method and device for directing a warm profile and method for producing a standardized profile
CN201288279Y (en) * 2008-10-28 2009-08-12 莱芜钢铁集团有限公司 Hot rolling F type special-shaped steel for middle/low speed magnetic suspension train rail
CN202155398U (en) * 2011-07-25 2012-03-07 北京铁路局石家庄工务段 Split type I-shaped steel rail flattening machine
CN102926297B (en) * 2012-11-06 2016-03-30 莱芜钢铁集团有限公司 A kind of magnetic suspension train rail high dimensional accuracy F shaped steel and manufacturing process thereof
CN204470330U (en) * 2015-02-12 2015-07-15 安徽零点精密机械有限责任公司 A kind of device preventing section bar from distorting
CN205183398U (en) * 2015-12-10 2016-04-27 山东钢铁股份有限公司 Orthotic devices of steel for grip -pad
CN206632143U (en) * 2017-04-06 2017-11-14 山东钢铁股份有限公司 F type gantry channel-steel apparatus for correcting

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