CN111005572A - Installation control method for steel coil transportation walking beam of rolling mill - Google Patents
Installation control method for steel coil transportation walking beam of rolling mill Download PDFInfo
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- CN111005572A CN111005572A CN201911119210.1A CN201911119210A CN111005572A CN 111005572 A CN111005572 A CN 111005572A CN 201911119210 A CN201911119210 A CN 201911119210A CN 111005572 A CN111005572 A CN 111005572A
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- walking beam
- base
- elevation
- track
- mortar
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/44—Foundations for machines, engines or ordnance
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a mounting control method of a rolling mill steel coil transportation walking beam, which comprises the steps of utilizing a theodolite to check reserved foundation bolt holes one by one according to an embedded control line; adopting a slurry-setting method to construct a track foundation, placing a running track support on a slurry pile already set, and measuring the central line and the elevation of a running track; installing a cable drag chain guide rail and a movable beam; the mounting precision is adjusted through an adjusting gasket at the bottom of the saddle; the weighing device is then installed. The invention can accurately control the installation precision of important parts of the walking beam, improve the service performance of the walking beam and ensure the stability of the walking beam in long-term use.
Description
Technical Field
The invention relates to the technical field of mechanical equipment installation, in particular to an installation control method of a steel coil transportation walking beam of a rolling mill.
Background
Walking beams are one of the most commonly used steel coil transportation equipment in steel mills. The steel coils coming out of the hot rolling coiler are generally transported by a walking beam and then transported to a finished product warehouse by a fast chain and a slow chain. The stepping beams are also used for transporting steel coils at the inlet and outlet of the cold rolling, galvanizing and continuous annealing lines. The walking beams are divided into inlet walking beams and outlet walking beams according to different arrangement positions. The walking beam is generally arranged underground, the fixed saddles of saddle-shaped welding structures are arranged on the walking beam, each fixed saddle is arranged at a certain distance, and the steel coil can be moved to the next fixed saddle from one fixed saddle by the movable beam in each operation period. The walking beam realizes the stepping material conveying by a lifting mechanism and a transverse moving mechanism. In individual cases, the stepping can be effected by an eccentric rotary mechanism.
The walking beam structure is basically composed of a fixed part and a movable part, the fixed part is mainly composed of a track assembly, a vertical column, a cross beam, a fixed saddle, a guide wheel and the like, the movable part is mainly composed of a box-type movable beam, a lifting mechanism, a translation mechanism, a wheel set and the like, and the lifting mechanism and the translation mechanism are driven by hydraulic cylinders. In order to prevent the walking beam from tipping, an upper pressing rail with equal length is arranged above the track to restrain the wheels.
Besides completing the input or output task of the steel coil, the walking beam can also cooperate with the surrounding related equipment according to the requirements of the process to realize the measurement of the width and the diameter of the steel coil, the belt dismantling, the pretreatment of the belt head, the centering, the steering, the weighing, the bundling and the like; the structure and the working principle of the walking beam determine that the walking beam can be well matched with lifting equipment in a workshop, multi-station safe coil loading or coil unloading is realized, and the walking beam and other production equipment realize quick production rhythm, high yield and production automation.
The walking beam is divided into a plurality of structural forms according to different using positions and functions, but the installation precision of a foundation, a track, a saddle, a weighing device and the like which are used as basic components of the walking beam is very important, and the installation precision can directly influence the using performance of equipment, and if the walking beam breaks down, the production is difficult to last, so that the walking beam must be accurately controlled to prevent future troubles.
Disclosure of Invention
The invention provides an installation control method of a steel coil transportation walking beam of a rolling mill, which can accurately control the installation precision of important parts of the walking beam, improve the service performance of the walking beam and ensure the stability of the walking beam in long-term use.
In order to achieve the purpose, the invention adopts the following technical scheme:
a mounting control method of a rolling mill steel coil transportation walking beam comprises the following steps:
1) checking a foundation; checking reserved foundation bolt holes one by using a theodolite according to an embedded control line, wherein the distance between the foundation bolt holes for fixing a fixed frame on a vertical wall and the central line of a walking beam is required to meet the design requirement;
2) constructing a track foundation by adopting a grout seating method, placing a running track support on the grout stack which is already seated, measuring the center line and the elevation of the running track, and ensuring that the error of the center line is +/-1 mm and the error of the elevation is +/-0.5 mm; when the back-pressure track is installed, the gap between the wheel and the back-pressure track is ensured to be 1.5-2 mm;
3) installing a cable drag chain guide rail and a movable beam;
4) the mounting precision is adjusted through the adjusting gaskets at the bottom of the saddle, so that the height deviation of all the saddles is +/-3 mm on the length of the whole stepping beam, and the height difference of the adjacent 2 saddles is maximally 2 mm;
5) the installation sequence of the weighing device on the walking beam is as follows:
a. accurately arranging 4 seat slurry base plates by using a seat slurry method at the installation position of the weighing device, wherein the height error of the seat slurry base plates is +/-0.5 mm;
b. after the strength of the mortar-sitting concrete meets the requirement, a base of the weighing device is placed on a mortar-sitting base plate, the central line and the elevation of the base are checked, and the elevation of the base is adjusted to the designed elevation by using a flat base plate;
c. grouting to make the upper surface of the seat pulp padding plate level with the ground;
d. and placing the scale frame on the base, adjusting the scale frame to be in a horizontal state, and loosening the lower surface of the bolt for fixing the sensor for 2 mm and the upper surface of the bolt for fixing the sensor for 1 mm after the adjustment is finished.
Compared with the prior art, the invention has the beneficial effects that:
the installation accuracy of important parts of the walking beam can be accurately controlled, the service performance of the walking beam is improved, and the stability of the walking beam in long-term use is ensured.
Detailed Description
The invention relates to an installation control method of a rolling mill steel coil transportation walking beam, which comprises the following steps:
1) checking a foundation; checking reserved foundation bolt holes one by using a theodolite according to an embedded control line, wherein the distance between the foundation bolt holes for fixing a fixed frame on a vertical wall and the central line of a walking beam is required to meet the design requirement;
2) constructing a track foundation by adopting a grout seating method, placing a running track support on the grout stack which is already seated, measuring the center line and the elevation of the running track, and ensuring that the error of the center line is +/-1 mm and the error of the elevation is +/-0.5 mm; when the back-pressure track is installed, the gap between the wheel and the back-pressure track is ensured to be 1.5-2 mm;
3) installing a cable drag chain guide rail and a movable beam;
4) the mounting precision is adjusted through the adjusting gaskets at the bottom of the saddle, so that the height deviation of all the saddles is +/-3 mm on the length of the whole stepping beam, and the height difference of the adjacent 2 saddles is maximally 2 mm;
5) the installation sequence of the weighing device on the walking beam is as follows:
a. accurately arranging 4 seat slurry base plates by using a seat slurry method at the installation position of the weighing device, wherein the height error of the seat slurry base plates is +/-0.5 mm;
b. after the strength of the mortar-sitting concrete meets the requirement, a base of the weighing device is placed on a mortar-sitting base plate, the central line and the elevation of the base are checked, and the elevation of the base is adjusted to the designed elevation by using a flat base plate;
c. grouting to make the upper surface of the seat pulp padding plate level with the ground;
d. and placing the scale frame on the base, adjusting the scale frame to be in a horizontal state, and loosening the lower surface of the bolt for fixing the sensor for 2 mm and the upper surface of the bolt for fixing the sensor for 1 mm after the adjustment is finished.
In any form of walking beam, the trend is to reduce the use of steel structure and the depth of civil foundation as much as possible, thereby reducing the weight and investment of equipment. The track is directly fixed on the foundation, and the form that a steel structure beam is arranged below the track in the traditional construction is replaced. The foundation and the base plate are constructed by a mortar setting method, wherein concrete mortar is set between the base plate and the foundation to achieve the purpose of mounting the base plate. The flat backing plate is an installation righting and leveling tool, is located between the equipment base and the basic backing plate, can enable the installed equipment to meet the requirements of design elevation and levelness by adjusting the thickness of the flat backing plate, increases the stability of the equipment, enables the weight and vibration of the equipment to be uniformly transmitted to the foundation, and is convenient for secondary grouting.
In order to ensure the contact area between the seat slurry cushion plate and the foundation, the surface of the foundation needs to be ground. The concrete layer contacted with the base mortar backing plate is usually polished by a portable grinding wheel, the installation elevation of the walking beam and the levelness requirement of the upper plane of the base mortar sizing block are met, and after the base concrete layer is completely leveled, the elevation of the base concrete layer is measured one by using a water protocol. And determining the thickness of each group of base slurry cushion plates according to the installation elevation of the walking beam, processing each group of base slurry cushion plates according to the determined thickness, marking, and carrying out number matching in construction.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (1)
1. A mounting control method for a steel coil transportation walking beam of a rolling mill is characterized by comprising the following steps:
1) checking a foundation; checking reserved foundation bolt holes one by using a theodolite according to an embedded control line, wherein the distance between the foundation bolt holes for fixing a fixed frame on a vertical wall and the central line of a walking beam is required to meet the design requirement;
2) mounting a track by adopting a mortar sitting method, placing a running track support on the mortar pile which is already seated, measuring the center line and the elevation of the running track, and ensuring that the error of the center line is +/-1 mm and the error of the elevation is +/-0.5 mm; when the back-pressure track is installed, the gap between the wheel and the back-pressure track is ensured to be 1.5-2 mm;
3) installing a cable drag chain guide rail and a movable beam;
4) the mounting precision is adjusted through the adjusting gaskets at the bottom of the saddle, so that the height deviation of all the saddles is +/-3 mm on the length of the whole stepping beam, and the height difference of the adjacent 2 saddles is maximally 2 mm;
5) the installation sequence of the weighing device on the walking beam is as follows:
a. accurately arranging 4 seat slurry base plates by using a seat slurry method at the installation position of the weighing device, wherein the height error of the seat slurry base plates is +/-0.5 mm;
b. after the strength of the mortar-sitting concrete meets the requirement, a base of the weighing device is placed on a mortar-sitting base plate, the central line and the elevation of the base are checked, and the elevation of the base is adjusted to the designed elevation by using a flat base plate;
c. grouting to make the upper surface of the seat pulp padding plate level with the ground;
d. and placing the scale frame on the base, adjusting the scale frame to be in a horizontal state, and loosening the lower surface of the bolt for fixing the sensor for 2 mm and the upper surface of the bolt for fixing the sensor for 1 mm after the adjustment is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911119210.1A CN111005572A (en) | 2019-11-15 | 2019-11-15 | Installation control method for steel coil transportation walking beam of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911119210.1A CN111005572A (en) | 2019-11-15 | 2019-11-15 | Installation control method for steel coil transportation walking beam of rolling mill |
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| CN111005572A true CN111005572A (en) | 2020-04-14 |
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| CN201911119210.1A Pending CN111005572A (en) | 2019-11-15 | 2019-11-15 | Installation control method for steel coil transportation walking beam of rolling mill |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153247A (en) * | 1996-09-26 | 1997-07-02 | 周振华 | Continuous bed mortar soleplate method |
| US20030029825A1 (en) * | 2001-08-08 | 2003-02-13 | Baxter Sr. Kern C.A. | Hoisting platform system |
| CN102950464A (en) * | 2011-08-17 | 2013-03-06 | 五冶集团上海有限公司 | Method for mounting continuous production line of non-oriented silicon steel |
| CN103267565A (en) * | 2013-05-17 | 2013-08-28 | 新余钢铁集团有限公司 | Lever type steel coil on-line weighing metering device |
| CN106801433A (en) * | 2017-03-31 | 2017-06-06 | 中国化学工程第七建设有限公司 | The seat slurry method construction technique that a kind of equipment is installed without parallels |
| JP2017166034A (en) * | 2016-03-17 | 2017-09-21 | Ｊｆｅプラントエンジ株式会社 | Construction method for heating furnace |
-
2019
- 2019-11-15 CN CN201911119210.1A patent/CN111005572A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153247A (en) * | 1996-09-26 | 1997-07-02 | 周振华 | Continuous bed mortar soleplate method |
| US20030029825A1 (en) * | 2001-08-08 | 2003-02-13 | Baxter Sr. Kern C.A. | Hoisting platform system |
| CN102950464A (en) * | 2011-08-17 | 2013-03-06 | 五冶集团上海有限公司 | Method for mounting continuous production line of non-oriented silicon steel |
| CN103267565A (en) * | 2013-05-17 | 2013-08-28 | 新余钢铁集团有限公司 | Lever type steel coil on-line weighing metering device |
| JP2017166034A (en) * | 2016-03-17 | 2017-09-21 | Ｊｆｅプラントエンジ株式会社 | Construction method for heating furnace |
| CN106801433A (en) * | 2017-03-31 | 2017-06-06 | 中国化学工程第七建设有限公司 | The seat slurry method construction technique that a kind of equipment is installed without parallels |
Non-Patent Citations (1)
| Title |
|---|
| 鲍强林: "浅谈步进梁式加热炉炉底设备的安装 ", 《新余高专学报》 * |
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