CN114178775B - Frame damage repairing method for heavy-duty four-wheel rail car - Google Patents
Frame damage repairing method for heavy-duty four-wheel rail car Download PDFInfo
- Publication number
- CN114178775B CN114178775B CN202111531121.5A CN202111531121A CN114178775B CN 114178775 B CN114178775 B CN 114178775B CN 202111531121 A CN202111531121 A CN 202111531121A CN 114178775 B CN114178775 B CN 114178775B
- Authority
- CN
- China
- Prior art keywords
- frame
- repairing
- heavy
- duty
- plate
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Abstract
The invention relates to a method for repairing frame damage of a heavy-duty four-wheel rail car, which comprises the following steps: (1) Cushion block assemblies are placed at symmetrical positions below two ends of the damaged frame, and meanwhile, a jack is erected at the bottom of the middle of the damaged frame; (2) Cutting a seam downwards from the middle of the upper end surface of the damaged frame; (3) Standing the frame treated in the step (2) for 8-24 hours; (4) starting the jack to jack upwards from the middle of the bottom of the frame; (5) Welding and repairing the seam cut in the step (2) by using a steel plate; (6) Cutting a front side plate or a rear side plate of a broken part on the frame, and welding riding bars in the front side plate or the rear side plate; (7) After the saddle bars are welded, welding and sealing plates are adopted for the mouths cut in the step (6); the repairing method has good repairing effect, and the strength after repairing can well meet the actual application requirements.
Description
Technical Field
The invention relates to the technical field of repairing methods of steel smelting mechanical vehicles, in particular to a repairing method for frame damage of a heavy-duty four-wheel rail car.
Background
Heavy-duty four-wheeled rail vehicles generally comprise a steel ladle vehicle or other large-tonnage loading vehicle, the vehicle generally has a frame, the frame is generally similar to a bogie type structure, the middle of the frame is used for placing and bearing ladles or other large-tonnage loads, the loads can reach several tons or even tens of tons, the situation that the lower part on the frame is prone to fracture easily occurs near wheels in the long-time running process, once the steel ladle vehicle or the loading vehicle breaks, the whole frame body needs to be replaced, the cost of the steel ladle vehicle is very high, but no good method is available at present for repairing construction, and the vehicle which tends to be scrapped in a workshop corner is abandoned in many workshops, so that great resource waste is caused.
Disclosure of Invention
The invention aims to provide a method for repairing the frame damage of a heavy-duty four-wheel rail car aiming at the situation, and the method provided by the invention provides a low-cost and good-repair-effect repairing method for repairing the heavy-duty four-wheel car, and has good practical application effect.
The specific scheme of the invention is as follows: a method for repairing frame damage of a heavy-duty four-wheel rail car comprises the following steps:
(1) According to the sinking bending degree of the middle of the damaged frame, cushion block assemblies are placed at symmetrical positions below two ends of the damaged frame, and meanwhile, a jack is erected at the bottom of the middle of the damaged frame;
(2) Cutting a seam downwards from the upper end face of the damaged frame to the middle part of the frame, and the seam is downwards
The depth h is less than or equal to the upper and lower thicknesses of the frame, and is determined according to the actual time required by sedimentation repair;
(3) Standing the frame treated in the step (2) for 8-24 hours, and gradually reducing the heights of cushion block assemblies at two ends according to the natural sinking distance at two ends of the frame in the standing process until two sides of the frame tend to be in a horizontal state;
(4) Starting the jack to jack upwards from the middle of the bottom of the frame until the upper end face of the frame is completely positioned on the same horizontal plane;
(5) Welding and repairing the seam cut in the step (2) by using a steel plate;
(6) Cutting a front side plate or a rear side plate of a broken part on the frame, welding a saddle bar in the front side plate or the rear side plate, keeping a certain distance between the saddle bar and the front side plate and between the saddle bar and the rear side plate of the frame, welding the lower part of the saddle bar on a bottom plate of the frame, adapting to the bottom plate in shape, and welding the upper end of the saddle bar on the upper plate of the frame;
(7) And (3) after the saddle bars are welded, welding the sealing plate by adopting the steel plate to the opening cut in the step (6), and simultaneously drilling a stress release hole on the welding sealing plate.
Furthermore, the cushion block assembly in the step (1) is composed of a plurality of steel plate cushion blocks with equal thickness.
Furthermore, the riding rib in the invention is in an I-steel structure shape in the overlooking direction, and consists of two reinforcing rib wing plates and a longitudinal web plate, and the two reinforcing rib wing plates are connected into a whole by the longitudinal web plate.
Furthermore, in the step (2) of the present invention, flame cutting is adopted.
Further, in the present invention, the stress relief hole in the step (7) is a circular hole.
According to the repairing method disclosed by the invention, the broken buggy ladle or other heavy-load four-wheel vehicles are repaired together through natural sedimentation matched with the riding rib structure, the repairing effect is good, the strength after repairing can well meet the actual application requirements, the actual service life of the buggy ladle or other four-wheel vehicles is greatly prolonged, the equipment use cost of enterprises is greatly reduced, and the repairing method has good actual use and popularization values.
Drawings
FIG. 1 is a schematic view of a ladle car or a four-wheel load-carrying vehicle in a front view direction structure according to the present invention;
FIG. 2 is a schematic view of a repair vehicle frame according to the present invention;
figure 3 is a schematic view of the structure of figure 2 taken along A-A.
In the figure: 1-wheel, 2-frame, 3-ladle, 4-fracture, 5-money packing assembly, 6-seam, 7-jack, 8-saddle bar and 9-stress release hole.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent in the drawings of the present invention, wherein it is to be understood that the embodiments described are merely some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be noted that, the terms "upper", "lower", "inner", "outer", and the like indicate an orientation or a positional relationship based on that shown in the drawings, or an orientation or a positional relationship in which the inventive product is conventionally put in use, merely for convenience of describing the present invention or simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured or operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1 to 3, the invention relates to a method for repairing frame damage of a heavy-duty four-wheel rail car, which comprises the following steps:
(1) According to the sinking bending degree of the middle of the damaged frame 2, the middle bearing part is bent downwards after the breakage, a breaking crack 4 appears at the bending part of the frame above the wheels, cushion block assemblies 5 are placed at symmetrical positions below two ends of the damaged frame, and meanwhile, a jack 7 is erected at the bottom of the middle of the damaged frame;
(2) Cutting a seam 6 downwards from the middle of the upper end surface of the damaged frame, wherein the downward depth of the seam is h, the depth h is less than or equal to the upper and lower thicknesses of the frame, the depth h is determined according to the actual time required by sedimentation repair, and the time is not suitable to be selected too fast;
(3) The frame treated in the step (2) is kept stand for 8-24 hours, the time is generally kept at night for about 12 hours, the normal daytime work of a workshop is not affected, the heights of cushion block assemblies at two ends are gradually reduced according to the naturally sinking distance at two ends of the frame in the standing process until two sides of the frame tend to be in a horizontal state, the two ends of the frame can be reduced by half firstly, then the cushion block assemblies are reduced by half in height, the two sides of the frame are similar to the sinking degree of the horizontal plane, and the cushion block assemblies are used for preventing the two sides of the frame from sinking too much and generating secondary deformation;
(4) Starting the jack to jack upwards from the middle of the bottom of the frame, wherein the jack is equivalent to fine adjustment, and the jack cannot be excessive until the upper end face of the frame is completely positioned on the same horizontal plane;
(5) Welding and repairing the seam cut in the step (2) by using a steel plate;
(6) Cutting a front side plate or a rear side plate of a broken part on the frame, welding saddle bars 8 in the front side plate or the rear side plate, and keeping a certain distance between the saddle bars and the front side plate and between the saddle bars and the rear side plate of the frame so as to facilitate the operation of a sealing plate at a later stage, wherein the lower parts of the saddle bars are welded on a bottom plate of the frame, the shape of the saddle bars is matched with that of the bottom plate, and the upper ends of the saddle bars are welded on an upper plate of the frame;
(7) After the saddle bars are welded, welding the sealing plate by adopting the steel plate to the opening cut in the step (6), and simultaneously drilling a stress release hole 9 on the welding sealing plate.
Further, in this embodiment, the pad assembly in the step (1) is composed of a plurality of steel pad blocks with equal thickness.
Furthermore, in this embodiment, the saddle bar is in an i-steel structure shape in the top view direction, and is composed of two reinforcing rib wing plates and a longitudinal web plate, and the longitudinal web plate connects the two reinforcing rib wing plates into a whole.
Further, in this embodiment, the cutting mode in the step (2) is flame cutting.
Further, in the embodiment, the stress relief hole 9 in the step (7) is a circular hole.
The service strength of the buggy ladle repaired by the method is completely different from that of the original buggy ladle or four-wheel load-carrying vehicle.
The method is equivalent to repairing four-wheel load-carrying vehicles such as ladle vehicles and the like by adopting a brand new low-cost mode, has wide application range, can be popularized to repairing similar heavy-duty vehicles after breakage and damage, and greatly reduces the operating cost of enterprises.
According to the repairing method disclosed by the invention, the broken buggy ladle or other heavy-load four-wheel vehicles are repaired together through natural sedimentation matched with the riding rib structure, the repairing effect is good, the strength after repairing can well meet the actual application requirements, the actual service life of the buggy ladle or other four-wheel vehicles is greatly prolonged, the equipment use cost of enterprises is greatly reduced, and the repairing method has good actual use and popularization values.
Claims (5)
1. The method for repairing the frame damage of the heavy-duty four-wheel rail car is characterized by comprising the following steps of:
(1) According to the sinking bending degree of the middle of the damaged frame, cushion block assemblies are placed at symmetrical positions below two ends of the damaged frame, and meanwhile, a jack is erected at the bottom of the middle of the damaged frame;
(2) Cutting a seam downwards from the upper end face of the damaged frame to the middle part of the frame, and the seam is downwards
The depth h is less than or equal to the upper and lower thicknesses of the frame, and is determined according to the actual time required by sedimentation repair;
(3) Standing the frame treated in the step (2) for 8-24 hours, and gradually reducing the heights of cushion block assemblies at two ends according to the natural sinking distance at two ends of the frame in the standing process until two sides of the frame tend to be in a horizontal state;
(4) Starting the jack to jack upwards from the middle of the bottom of the frame until the upper end face of the frame is completely positioned on the same horizontal plane;
(5) Welding and repairing the seam cut in the step (2) by using a steel plate;
(6) Cutting a front side plate or a rear side plate of a broken part on the frame, welding a saddle bar in the frame, wherein the saddle bar and the front and rear side plates of the frame are kept at a certain distance, the lower part of the saddle bar is welded on a bottom plate of the frame, the shape of the saddle bar is matched with that of the bottom plate, and the upper end of the saddle bar is welded on an upper plate of the frame;
(7) And (3) after the saddle bars are welded, welding the sealing plate by adopting the steel plate to the opening cut in the step (6), and simultaneously drilling a stress release hole on the welding sealing plate.
2. The method for repairing the frame damage of the heavy-duty four-wheeled railcar according to claim 1, wherein the pad assembly in the step (1) is composed of a plurality of steel plate pads with equal thickness.
3. The method for repairing the frame damage of the heavy-duty four-wheel rail car according to claim 1, wherein the riding rib is in an I-steel structure shape in the overlooking direction, and consists of two reinforcing rib wing plates and a longitudinal web plate, and the two reinforcing rib wing plates are connected into a whole through the longitudinal web plate.
4. The method for repairing the frame damage of the heavy-duty four-wheel railcar according to claim 1, wherein the cutting mode in the step (2) is flame cutting.
5. The method for repairing the frame damage of the heavy-duty four-wheel railcar according to claim 1, wherein the stress relief hole in the step (7) is a round hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111531121.5A CN114178775B (en) | 2021-12-15 | 2021-12-15 | Frame damage repairing method for heavy-duty four-wheel rail car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111531121.5A CN114178775B (en) | 2021-12-15 | 2021-12-15 | Frame damage repairing method for heavy-duty four-wheel rail car |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114178775A CN114178775A (en) | 2022-03-15 |
| CN114178775B true CN114178775B (en) | 2023-06-13 |
Family
ID=80543860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111531121.5A Active CN114178775B (en) | 2021-12-15 | 2021-12-15 | Frame damage repairing method for heavy-duty four-wheel rail car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114178775B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001071217A (en) * | 1999-09-03 | 2001-03-21 | Honda Motor Co Ltd | Joining structure of extruded material |
| JP3846169B2 (en) * | 2000-09-14 | 2006-11-15 | 株式会社日立製作所 | Gas turbine repair method |
| CN105537848B (en) * | 2015-12-22 | 2017-08-25 | 秦皇岛首秦金属材料有限公司 | Four beam double trolley cranes pair girder collides the online restorative procedure of deformation |
| CN108555524A (en) * | 2018-04-03 | 2018-09-21 | 中铁山桥集团有限公司 | A kind of U-shaped angle of rib weld seam panel crack welding repair method |
| CN111318781A (en) * | 2018-12-17 | 2020-06-23 | 天津市英源焊接技术有限公司 | Repair process for repairing, welding and reinforcing cracks of engine room chassis of wind generating set |
| CN110340611B (en) * | 2019-06-06 | 2021-03-30 | 国家电投集团黄河上游水电开发有限责任公司 | Method for repairing cracking of vibrating table of anode carbon block vibration forming machine |
| CN112676763A (en) * | 2020-11-30 | 2021-04-20 | 中化二建集团有限公司 | Method for repairing lining at steel chimney subsection hoisting interface position |
-
2021
- 2021-12-15 CN CN202111531121.5A patent/CN114178775B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114178775A (en) | 2022-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Chen et al. | The finite element analysis and the optimization design of the yj3128-type dump truck's sub-frames based on ANSYS | |
| CN102069817B (en) | Integral chassis towing beam of railway carriage | |
| CN107512661A (en) | A kind of replacing of vehicle wheel method | |
| CN101215823A (en) | Method for replacing bridge basin-type rubber support | |
| CN114178775B (en) | Frame damage repairing method for heavy-duty four-wheel rail car | |
| CN102059513B (en) | Process for manufacturing integral chassis towing beam for railway passenger vehicle | |
| CN100453249C (en) | Method for straightening main-bean of elevator | |
| CN200967149Y (en) | Inverting tool equipment for restoring train wheel | |
| CN101181858A (en) | Restored reinforcing wheel and restoring technique therefor | |
| CN102485568A (en) | Traction sleeper device | |
| CN205022599U (en) | Low -floor rail vehicle is with axle bridge construction | |
| CN2642612Y (en) | Bogie for passenger and goods train succor | |
| CN208496859U (en) | A kind of convenient and fast replacing of vehicle wheel device | |
| CN210313352U (en) | Automatic loading system for composite tray | |
| CN202499155U (en) | Bogie auxiliary framework of railway wagon | |
| CN201713211U (en) | Lining tile for laminated hook of crane | |
| CN206172878U (en) | More rail -changing says specialized tool of car wheel | |
| CN211028743U (en) | Special equipment for manufacturing railway vehicle underframe | |
| CN212768149U (en) | Sawing machine casting blank strorage device | |
| CN102358315A (en) | Bogie swing bolster wearing plate device and manufacturing method thereof | |
| CN201626274U (en) | Balanced suspension of dump truck for mine | |
| CN218400340U (en) | Dumper lifting seat and dumper | |
| CN216864838U (en) | Bridge construction safety platform | |
| CN219900848U (en) | Liang Hange frock is consolidated to agricultural machinery steering axle | |
| CN111822947B (en) | Machining method for stay bar assembly in straddle bogie end beam structure |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |