CN115924707A - Hoisting method for large rolling mill frame - Google Patents
Hoisting method for large rolling mill frame Download PDFInfo
- Publication number
- CN115924707A CN115924707A CN202211704183.6A CN202211704183A CN115924707A CN 115924707 A CN115924707 A CN 115924707A CN 202211704183 A CN202211704183 A CN 202211704183A CN 115924707 A CN115924707 A CN 115924707A
- Authority
- CN
- China
- Prior art keywords
- rolling mill
- sliding
- transmission side
- hoisting
- lifting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
Landscapes
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to a hoisting method of a large rolling mill frame, which comprises the following steps: 1) Arranging a ground horizontal sliding device and a hydraulic lifting sliding device; 2) Hoisting the transmission side frame to a ground horizontal sliding device, installing a hoisting clamp and adjusting a gravity center hoisting tool; 3) A hydraulic lifting sliding device is mainly used for lifting, a workshop travelling crane is matched with a tail sliding, a transmission side rack is lifted to the upper part of an installation position and is rotated to a vertical state; 4) Completing the installation of the transmission side frame; 5) Mounting the operation side frame on the base of the rolling mill in the same manner as the steps 2) to 4); 6) And (5) mounting a rolling mill beam. The invention is suitable for the working condition that the workshop travelling crane cannot meet the requirements of hoisting capacity and hoisting height, and realizes the horizontal transportation and the vertical hoisting of the rolling mill frame in place by adopting the modes of ground horizontal sliding, air sliding after vertical lifting and air overturning.
Description
Technical Field
The invention relates to the technical field of large equipment installation, in particular to a hoisting method for a large rolling mill frame.
Background
The modern large-scale rolling mill is the core equipment on the rolling process line of a steel mill, and directly determines the product and the quality of a rolled piece. With the rapid development of steel rolling technology, the size and specification of the rolling mill are continuously increased, and the installation quality requirement is continuously improved.
At present, the hoisting technology aiming at the large rolling mill mainly comprises the following steps: the method comprises a basic reservation method hoisting technology, a bracket rotation method hoisting technology, a special hoisting tool hoisting technology, a transverse sliding vertical hydraulic jacking super-large rolling mill technology, a vertical rolling mill hoisting technology and the like, wherein different hoisting technologies are used for solving different problems, such as insufficient hoisting capacity of traveling cranes in a production workshop, insufficient hoisting height, limited installation environment and the like, and the applicable range of each method is different.
Disclosure of Invention
The invention provides a hoisting method for a large rolling mill stand, which is suitable for working conditions that a workshop travelling crane cannot meet the requirements of hoisting capacity and hoisting height, realizes horizontal transportation and vertical hoisting of the rolling mill stand in place by adopting a mode of 'horizontal ground slipping, air slipping after vertical lifting and air overturning', and has the advantages of simple structure, and stable and safe hoisting.
In order to achieve the purpose, the invention adopts the following technical scheme:
a hoisting method for a large rolling mill frame comprises the following steps:
1) A rolling mill base is arranged at the rolling mill mounting position, a rolling mill base is mounted, and a hydraulic roll changing device foundation pit is arranged on the outer side of the rolling mill base corresponding to the operation side of the rolling mill; a ground horizontal sliding device is arranged on the ground above a foundation pit of the hydraulic roll changing device, a hydraulic lifting sliding device is arranged above a mounting position of the rolling mill, and the central line of the ground horizontal sliding device and the central line of the hydraulic lifting sliding device are coaxial with the central line of the rolling mill;
2) The method comprises the following steps that a transmission side rack of a rolling mill is hung on a horizontal ground moving device, a hoisting clamp is installed at one end of the transmission side rack close to the top of the rolling mill on the basis of the rolling mill in a working state, and a gravity center adjusting hanger is installed at the other end of the transmission side rack close to the bottom of the rolling mill;
3) Sliding the transmission side rack with the hoisting clamp and the gravity center adjusting hanger to the position below the hydraulic lifting sliding device along the ground horizontal sliding device, connecting a rigging of the hydraulic lifting sliding device with a lifting lug of the hoisting clamp, and connecting a lifting hook of a workshop travelling crane with the gravity center adjusting hanger through a steel wire rope; a hydraulic lifting sliding device is mainly used for lifting, a workshop travelling crane is matched with a tail sliding, a transmission side rack is lifted to the upper part of an installation position and is rotated to a vertical state;
4) Separating a lifting hook of a workshop travelling crane from a gravity center adjusting lifting appliance, and dismantling the gravity center adjusting lifting appliance; mounting the transmission side rack on a rolling mill base, separating a rigging of the hydraulic lifting sliding device from a lifting lug of a hoisting clamp, and removing the hoisting clamp to complete the mounting of the transmission side rack;
5) Mounting the operation side frame on the base of the rolling mill in the same manner as the steps 2) to 4);
6) The rolling mill beam is installed to connect the transmission side frame and the operation side frame, and the rolling mill frame is hoisted.
The ground horizontal sliding device consists of a track supporting beam, a sliding track beam, a horizontal sliding beam, a rack supporting beam and a horizontal sliding hydraulic pushing device; 2 sliding track beams are arranged in parallel, and the bottoms of the sliding track beams are supported by a plurality of track supporting beams arranged at intervals; the 2 groups of horizontal sliding beams are correspondingly arranged on the 2 sliding track beams, and the horizontal sliding beams can move along the sliding track beams under the driving of the horizontal sliding hydraulic pushing device; the 2 frame supporting beams are perpendicular to the horizontal sliding beams, two ends of each frame supporting beam stretch across the tops of the 2 groups of horizontal sliding beams, and the frame supporting beams support the transmission side frame/operation side frame.
The hydraulic lifting sliding device consists of an operation side upright post, a transmission side upright post, a main sliding track beam, a main sliding hydraulic pushing device, a transverse supporting beam, a longitudinal supporting beam and a hydraulic lifting device; the 2 main sliding track beams are arranged in parallel, two ends of each main sliding track beam are respectively supported by a transmission side upright post and an operation side upright post, the transmission side upright posts are correspondingly arranged on the transmission side of the rolling mill, and the operation side upright posts are correspondingly arranged on the operation side of the rolling mill; the top of the main sliding track beam is respectively provided with a main sliding beam which can move along the main sliding track beam under the driving of a main sliding hydraulic pushing device; the 2 transverse supporting beams and the 2 longitudinal supporting beams are arranged on the top of the main sliding beam in a staggered mode in a groined shape, 1 group of hydraulic lifting devices are arranged in the middle of the 2 longitudinal supporting beams respectively, and riggings are arranged at the bottom ends of steel strand wires in the hydraulic lifting devices.
The gravity center adjusting lifting appliance consists of 2 triangular frames and 3 connecting beams for connecting 3 end points of the 2 triangular frames; when the transmission side rack/the operation side rack is in a horizontal state, the gravity center adjusting lifting appliance is arranged above the bottom of the transmission side rack/the operation side rack, two ends of a connecting beam at the lower part of the inner side of the gravity center adjusting lifting appliance are supported on stand columns at two sides of the rack, and a steel wire rope tied on the connecting beam at the lower part of the inner side bypasses a cross beam of the transmission side rack/the operation side rack and is connected with a lifting hook of a workshop traveling crane.
Compared with the prior art, the invention has the beneficial effects that:
1) The height of a rack of a large rolling mill is generally more than 10 meters, the height of a rack of a wide and thick plate rolling mill is more than 15 meters, and the conventional workshop travelling crane cannot meet the requirements on the hoisting capacity and the hoisting height when the rack of the rolling mill is hoisted; according to the invention, the ground horizontal sliding device is laid on the foundation pit of the hydraulic roll changing device, the hydraulic lifting sliding device is arranged above the installation position of the rolling mill, and the hoisting of the rolling mill frame is realized by adopting the modes of ground horizontal sliding, air sliding after vertical lifting and air overturning, so that the hoisting height is reduced, and the hoisting load requirement of the large rolling mill frame is met;
2) By adopting the hoisting method, no additional pre-assembled pit is required to be constructed, the adaptability to site conditions is good, the operation safety is high, and the construction speed is high;
3) The hydraulic lifting sliding device is matched with a workshop travelling crane for operation, so that the operation efficiency is improved, and the stability of the rolling mill frame during hoisting and air overturning is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:
fig. 1 is a schematic plan view of the hoisting of a large rolling mill stand according to the present invention.
FIG. 2 is a first schematic diagram of the hoisting process of the transmission side frame according to the present invention.
Fig. 3 is a left side view of fig. 2.
Fig. 4 is a schematic diagram of a hoisting process of the transmission side frame.
FIG. 5 is a third schematic view of the hoisting process of the transmission side frame of the present invention.
FIG. 6 is a fourth schematic view of the transmission side frame hoisting process of the present invention.
Fig. 7 is a fifth schematic view of the hoisting process of the transmission side frame of the present invention.
Fig. 8 is a sixth schematic view of the hoisting process of the transmission side frame according to the present invention.
Fig. 9 is a first schematic view of the hoisting process of the operation side frame according to the present invention.
Fig. 10 is a schematic view of the hoisting process of the operation side frame according to the invention.
Fig. 11 is a third schematic view of the hoisting process of the operation side frame according to the present invention.
Fig. 12 is a fourth schematic view of the hoisting process of the operation side frame according to the present invention.
Fig. 13 is a fifth schematic view of the hoisting process of the operation side frame according to the present invention.
Fig. 14 is a sixth schematic view of the hoisting process of the operation side frame according to the present invention.
Description of reference numerals:
in the figure: 1. rolling mill foundation 201, hydraulic roll changing device foundation pit 202, rail support beam 203, sliding rail beam 204, horizontal sliding beam 205, horizontal sliding hydraulic pushing device 206, frame support beam 301, lifting clamp 302, lifting lug 303, gravity center adjusting lifting tool 401, operation side upright 402, transmission side upright 403, main sliding rail beam 404, main sliding beam 405, main sliding hydraulic pushing device 406, horizontal support beam 407, longitudinal support beam 408, hydraulic lifting device 409, steel wire 410, rigging 51, transmission side frame 52, operation side frame 6, workshop traveling crane 7, steel wire rope traveling crane 7
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The following further describes embodiments of the present invention in conjunction with the attached figures:
as shown in fig. 1 to 3, the hoisting method for the large rolling mill stand according to the present invention comprises the following steps:
1) A rolling mill base 1 and a rolling mill base are arranged at a rolling mill mounting position, and a hydraulic roll changing device foundation pit 2 is arranged on the outer side of the rolling mill base 1 corresponding to the operation side of the rolling mill; a ground horizontal sliding device is arranged on the ground above a foundation pit 2 of the hydraulic roll changing device, a hydraulic lifting sliding device is arranged above a mounting position of the rolling mill, and the central line of the ground horizontal sliding device and the central line of the hydraulic lifting sliding device are coaxial with the central line of the rolling mill;
2) The method comprises the following steps of (1) hoisting a transmission side rack 51 of a rolling mill to a ground horizontal sliding device, taking the rolling mill in a working state as a reference, installing a hoisting clamp 301 at one end of the transmission side rack 51 close to the top of the rolling mill, and installing a gravity center adjusting hanger 303 at the other end of the transmission side rack 51 close to the bottom of the rolling mill;
3) Sliding the transmission side frame 51 provided with the hoisting clamp 301 and the gravity center adjusting hanger 303 to the lower part of the hydraulic hoisting sliding device along the ground horizontal sliding device, connecting a rigging 410 of the hydraulic hoisting sliding device with a lifting lug 302 of the hoisting clamp 301, and connecting a lifting hook of the workshop travelling crane 6 with the gravity center adjusting hanger 303 through a steel wire rope 7; a hydraulic lifting sliding device is mainly used for lifting, a workshop travelling crane 6 is matched with a tail, a transmission side frame 51 is lifted to the upper part of a rolling mill mounting position and is rotated to a vertical state;
4) Separating the lifting hook of the workshop crane 6 from the gravity center adjusting lifting appliance 303, and detaching the gravity center adjusting lifting appliance 303; mounting the transmission side frame 51 on a rolling mill base, separating a rigging 410 of the hydraulic lifting sliding device from a lifting lug 302 of a lifting clamp 301, removing the lifting clamp 301, and completing mounting of the transmission side frame 51;
5) Mounting the operating-side stand 52 to the mill base in the same manner as in steps 2) to 4);
6) The hoisting of the mill housing is completed by installing a mill beam to connect the transmission side housing 51 and the operation side housing 52.
The ground horizontal sliding device consists of a track support beam 202, a sliding track beam 203, a horizontal sliding beam 204, a rack support beam 206 and a horizontal sliding hydraulic pushing device 205; the 2 sliding track beams 203 are arranged in parallel, and the bottoms of the sliding track beams are supported by a plurality of track support beams 202 arranged at intervals; the 2 groups of horizontal sliding beams 204 are correspondingly arranged on the 2 sliding track beams 203, and the horizontal sliding beams 204 can move along the sliding track beams 203 under the driving of the horizontal sliding hydraulic thrusters 205; the 2 frame support beams 206 are disposed perpendicular to the horizontal sliding beams 204, and both ends of the frame support beams 206 cross the top of the 2 sets of horizontal sliding beams 204, and the frame support beams 206 support the transmission-side frame 51/operation-side frame 52.
The hydraulic lifting sliding device consists of an operation side upright column 401, a transmission side upright column 402, a main sliding track beam 403, a main sliding beam 404, a main sliding hydraulic pushing device 405, a transverse supporting beam 406, a longitudinal supporting beam 407 and a hydraulic lifting device 408; the 2 main sliding track beams 403 are arranged in parallel, two ends of each main sliding track beam 403 are respectively supported by a transmission side upright post 402 and an operation side upright post 401, the transmission side upright post 402 is correspondingly arranged at the transmission side of the rolling mill, and the operation side upright post 401 is correspondingly arranged at the operation side of the rolling mill; the top of the main sliding track beam 403 is respectively provided with a main sliding beam 404, and the main sliding beam 404 can be driven by a main sliding hydraulic thruster 405 to move along the main sliding track beam 403; the 2 transverse supporting beams 406 and the 2 longitudinal supporting beams 407 are staggered at the top of the main sliding beam 404 in a groined shape, 1 group of hydraulic lifting devices 408 are respectively arranged at the middle parts of the 2 longitudinal supporting beams 407, and the bottom ends of steel strand wires 409 in the hydraulic lifting devices 408 are provided with riggings 410.
The gravity center adjusting lifting appliance 303 consists of 2 triangular frames and 3 connecting beams for connecting 3 end points of the 2 triangular frames; when the transmission side frame 51/operation side frame 52 is in a horizontal state, the gravity center adjusting hanger 303 is arranged above the bottom of the transmission side frame 51/operation side frame 52, two ends of a connecting beam at the lower part of the inner side of the gravity center adjusting hanger 303 are supported on upright columns at two sides of the frame, and a steel wire rope 7 tied on the connecting beam at the lower part of the inner side bypasses a cross beam of the transmission side frame 51/operation side frame 52 and is connected with a lifting hook of a workshop travelling crane 6.
The invention relates to a hoisting method of a large-scale rolling mill frame.A ground horizontal sliding device is arranged above a foundation pit of the existing hydraulic roll changing device of a rolling mill production line, a track of the ground horizontal sliding device can extend to the outside of a factory building according to requirements and is used for horizontal transportation of the rolling mill frame on the ground, and a hydraulic lifting sliding device is arranged above a rolling mill mounting position and is connected with the ground horizontal sliding device and is used for lifting the rolling mill frame and mounting the rolling mill frame in place.
In the installation process of the large-scale rolling mill frame, besides a ground horizontal sliding device and a hydraulic lifting sliding device, a hoisting clamp and a gravity center adjusting hoist are additionally required to be equipped; lifting lugs are arranged at two ends of the hoisting clamp and are used for connecting riggings of the hydraulic lifting device to realize the hoisting process of the rolling stand from the ground upwards, and the hoisted rolling stand is positioned inside a portal frame in the hydraulic lifting sliding device; the gravity center adjusting lifting appliance is used for adjusting the gravity center to keep balance in the process of overturning from a horizontal state to a vertical state after the rolling mill frame is lifted, the lifting clamp bears most of weight of the rolling mill frame when the rolling mill frame is lifted, the gravity center adjusting lifting appliance is fixed at the bottom of the rolling mill frame and is connected with a lifting hook of a workshop travelling crane through a steel wire rope to be matched with tail sliding lifting.
The following examples are carried out on the premise of the technical scheme of the invention, and detailed embodiments and specific operation processes are given, but the scope of the invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[ examples ] A method for producing a compound
In the embodiment, the method for hoisting the large rolling mill frame is used for hoisting the frame of a large wide and thick plate rolling mill, the frame of the wide and thick plate rolling mill comprises a rolling mill base, an operation side frame 52, a transmission side frame 51, a rolling mill cross beam and the like, the height of the frame exceeds 15 meters, the weight of the frame exceeds 500 tons, and the specific installation process is as follows:
as shown in fig. 1-3, a rolling mill base is installed on a rolling mill foundation 1 of a rolling mill installation position, and a ground horizontal sliding device is arranged above a hydraulic roll-changing device foundation pit 2, and comprises a rail support beam 202, a sliding rail beam 203, a horizontal sliding beam 204, a frame support beam 206 and a horizontal sliding hydraulic pushing device 205; a hydraulic lifting sliding device is arranged above a mounting position of a rolling mill and comprises an operation side upright column 401, a transmission side upright column 402, a main sliding track beam 403, a main sliding beam 404, a main sliding hydraulic pushing device 405, a transverse supporting beam 406, a longitudinal supporting beam 407 and a hydraulic lifting device 408.
As shown in fig. 2 and 3, the transmission side frame 51 of the rolling mill is horizontally hung on the ground horizontal moving device and supported by the frame support beam 206, and a hoisting clamp 301 and a gravity center adjusting hanger 303 are installed on the transmission side frame 51; as shown in fig. 4, the driving side frame 51 horizontally slides to the lower part of the hydraulic lifting sliding device along the horizontal sliding beam 204, the rigging 410 at the lower end of the steel hinge line 409 in the hydraulic lifting device 408 is connected with the lifting lug 302 of the lifting clamp 301, and the lifting hook of the workshop crane 6 is connected with the gravity center adjusting lifting appliance 303 through the steel wire rope 7; the vertical hoisting transmission side frame 51 mainly uses a hydraulic lifting device 408 during hoisting, and the workshop travelling crane 6 is matched with the gravity center adjusting lifting appliance 303 to slide; as shown in fig. 5, the driving side frame 51 is lifted horizontally and then slides to the upper side of the installation position along the main sliding beam 404; then the lifting hook of the workshop travelling crane 6 moves downwards to gradually change the transmission side rack 51 from a horizontal state to a vertical state (as shown in fig. 6-7), the lifting hook of the workshop travelling crane 6 is separated from the gravity center adjusting lifting appliance 303, and the gravity center adjusting lifting appliance 303 is detached; mounting the transmission side frame 51 on a rolling mill base, separating the rigging 410 of the hydraulic lifting device 408 from the lifting lug 302 of the lifting clamp 301, and removing the lifting clamp 301 to complete the mounting of the transmission side frame 51 (as shown in fig. 8 and 9);
as shown in fig. 9-14, the above steps are repeated, the operation side frame 52 is hoisted to the rolling mill base in the same manner, and finally, accessories such as a rolling mill beam and the like are installed, so that the hoisting process of the rolling mill frame is completed.
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 (4)
1. A hoisting method for a large rolling mill stand is characterized by comprising the following steps:
1) A rolling mill base is arranged at the rolling mill mounting position, a rolling mill base is mounted, and a hydraulic roll changing device foundation pit is arranged on the outer side of the rolling mill base corresponding to the operation side of the rolling mill; a ground horizontal sliding device is arranged on the ground above a foundation pit of the hydraulic roll changing device, a hydraulic lifting sliding device is arranged above a mounting position of the rolling mill, and the central line of the ground horizontal sliding device and the central line of the hydraulic lifting sliding device are coaxial with the central line of the rolling mill;
2) The method comprises the following steps that a transmission side rack of a rolling mill is hung on a horizontal ground moving device, a hoisting clamp is installed at one end of the transmission side rack close to the top of the rolling mill on the basis of the rolling mill in a working state, and a gravity center adjusting hanger is installed at the other end of the transmission side rack close to the bottom of the rolling mill;
3) Sliding the transmission side rack with the hoisting clamp and the gravity center adjusting hanger to the position below the hydraulic lifting sliding device along the ground horizontal sliding device, connecting a rigging of the hydraulic lifting sliding device with a lifting lug of the hoisting clamp, and connecting a lifting hook of a workshop travelling crane with the gravity center adjusting hanger through a steel wire rope; a hydraulic lifting sliding device is used for lifting as a main part, a workshop travelling crane is matched with a tail, a transmission side rack is lifted to the upper part of an installation position and is rotated to a vertical state;
4) Separating a lifting hook of a workshop travelling crane from a gravity center adjusting lifting appliance, and dismantling the gravity center adjusting lifting appliance; mounting the transmission side rack on a rolling mill base, separating a rigging of the hydraulic lifting sliding device from a lifting lug of a hoisting clamp, and removing the hoisting clamp to complete the mounting of the transmission side rack;
5) Mounting the operation side frame on the base of the rolling mill in the same manner as the steps 2) to 4);
6) The rolling mill beam is installed to connect the transmission side frame and the operation side frame, and the rolling mill frame is hoisted.
2. The hoisting method for the large rolling mill stand according to claim 1, wherein the ground horizontal sliding device is composed of a rail support beam, a sliding rail beam, a horizontal sliding beam, a stand support beam and a horizontal sliding hydraulic pushing device; 2 sliding track beams are arranged in parallel, and the bottoms of the sliding track beams are supported by a plurality of track supporting beams arranged at intervals; the 2 groups of horizontal sliding beams are correspondingly arranged on the 2 sliding track beams, and the horizontal sliding beams can move along the sliding track beams under the driving of the horizontal sliding hydraulic pushing device; the 2 frame supporting beams are perpendicular to the horizontal sliding beam, two ends of each frame supporting beam stretch across the tops of the 2 groups of horizontal sliding beams, and the frame supporting beams play a supporting role in supporting the transmission side frame/operation side frame.
3. The hoisting method for the large rolling mill stand according to claim 1, wherein the hydraulic lifting sliding device consists of an operation side upright post, a transmission side upright post, a main sliding track beam, a main sliding hydraulic pushing device, a transverse supporting beam, a longitudinal supporting beam and a hydraulic lifting device; the 2 main sliding track beams are arranged in parallel, two ends of each main sliding track beam are respectively supported by a transmission side upright post and an operation side upright post, the transmission side upright posts are correspondingly arranged at the transmission side of the rolling mill, and the operation side upright posts are correspondingly arranged at the operation side of the rolling mill; the top of the main sliding track beam is respectively provided with a main sliding beam which can move along the main sliding track beam under the driving of a main sliding hydraulic pushing device; the 2 transverse supporting beams and the 2 longitudinal supporting beams are arranged on the top of the main sliding beam in a staggered mode in a groined shape, 1 group of hydraulic lifting devices are arranged in the middle of the 2 longitudinal supporting beams respectively, and riggings are arranged at the bottom ends of steel strand wires in the hydraulic lifting devices.
4. The hoisting method for the large rolling mill stand according to claim 1, wherein the gravity center adjusting hanger is composed of 2 triangular frames and 3 connecting beams connecting 3 end points of the 2 triangular frames; when the transmission side rack/the operation side rack is in a horizontal state, the gravity center adjusting sling is arranged above the bottom of the transmission side rack/the operation side rack, two ends of a connecting beam at the lower part of the inner side of the gravity center adjusting sling are supported on stand columns at two sides of the rack, and a steel wire rope tied on the connecting beam at the lower part of the inner side bypasses a cross beam of the transmission side rack/the operation side rack and is connected with a lifting hook of a workshop travelling crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211704183.6A CN115924707A (en) | 2022-12-29 | 2022-12-29 | Hoisting method for large rolling mill frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211704183.6A CN115924707A (en) | 2022-12-29 | 2022-12-29 | Hoisting method for large rolling mill frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115924707A true CN115924707A (en) | 2023-04-07 |
Family
ID=86550668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211704183.6A Pending CN115924707A (en) | 2022-12-29 | 2022-12-29 | Hoisting method for large rolling mill frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115924707A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116443744A (en) * | 2023-06-16 | 2023-07-18 | 九八建设发展有限公司 | Bridge prefab hoisting accessory |
-
2022
- 2022-12-29 CN CN202211704183.6A patent/CN115924707A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116443744A (en) * | 2023-06-16 | 2023-07-18 | 九八建设发展有限公司 | Bridge prefab hoisting accessory |
| CN116443744B (en) * | 2023-06-16 | 2023-08-15 | 九八建设发展有限公司 | Bridge prefab hoisting accessory |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201294056Y (en) | Double-column goods stacking machine for teaching | |
| CN110217698B (en) | Offshore wind power large-diameter single pile overturning tool and overturning method | |
| CN115924707A (en) | Hoisting method for large rolling mill frame | |
| CN201713229U (en) | Steel box girder cable-loaded crane for suspension bridge construction | |
| CN112030777B (en) | Descending movable formwork support bracket crossing type transfer construction method | |
| CN207259084U (en) | A kind of transfer pallet fork elevator and the vehicle production line using the elevator | |
| CN101863423B (en) | Steel box beam cable carrying lifter for construction of suspension bridge | |
| CN101450766A (en) | Lifting installation method for ultralong workpiece and used fixture cross beam | |
| CN219156345U (en) | Large-scale rolling mill frame hoist device | |
| CN115818458A (en) | Standard knot assembling and disassembling system and operation method | |
| CN206955487U (en) | It is exclusively used in lifting steel pipes and the crane device of welding | |
| CN110439292A (en) | Fabrication and installation system and construction technology for large-scale closed type industrial stockyard roof truss | |
| CN202643086U (en) | Hoisting tool of hydroxylation reactor | |
| CN219151166U (en) | Large-scale rolling mill frame off-line assembly device | |
| CN213865193U (en) | Lifting device for small and medium-sized equipment | |
| CN211198404U (en) | Detachable rotary crane | |
| CN113969547A (en) | U-shaped manned hanging basket type maintenance platform for large bridge tower | |
| CN115958065A (en) | Large-scale rolling mill frame off-line assembling method | |
| CN112010150A (en) | Method for positioning vertical high-pressure heater of power plant by using groined frame | |
| CN220950793U (en) | Core-penetrating lifting device in limited space of large motor | |
| CN110886242A (en) | Method for installing composite cable saddle in anchor hole of suspension bridge tunnel in mountainous area | |
| CN217173007U (en) | Hoisting trolley with low height | |
| CN220739881U (en) | Platform for welding and installing inclined shaft pressure steel pipes of pumped storage power station | |
| CN221027408U (en) | Electric self-standing pole lifting frame | |
| CN210915021U (en) | Large-tonnage hoisting device for bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |