CN114178775A - Method for repairing damage of heavy-load four-wheel rail car frame - Google Patents
Method for repairing damage of heavy-load four-wheel rail car frame Download PDFInfo
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- CN114178775A CN114178775A CN202111531121.5A CN202111531121A CN114178775A CN 114178775 A CN114178775 A CN 114178775A CN 202111531121 A CN202111531121 A CN 202111531121A CN 114178775 A CN114178775 A CN 114178775A
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- 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
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a method for repairing damage of a heavy-duty four-wheel rail car frame, which comprises the following steps: (1) placing pad block assemblies at symmetrical positions below two ends of the damaged frame, and erecting a jack at the bottom of the middle of the damaged frame; (2) cutting a seam downwards from the right 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 a jack to jack upwards from the middle of the bottom of the frame; (5) welding and repairing the slit cut in the step (2) by using a steel plate; (6) cutting the front side plate or the rear side plate of the broken part on the frame, and welding a riding rib in the front side plate or the rear side plate; (7) after the horseback ribs are welded, welding a sealing plate on the cut openings in the step (6) by using a steel plate; the repairing method disclosed by the invention has a good repairing effect, and the repaired strength can well meet the requirements of practical application.
Description
Technical Field
The invention relates to the technical field of steel smelting machinery vehicle repairing methods, in particular to a method for repairing damage of a heavy-load four-wheel rail vehicle frame.
Background
The heavy-duty four-wheeled rail car usually comprises a buggy ladle or other heavy-duty load-carrying vehicles with large tonnage, the vehicle usually comprises a frame, the frame is generally similar to a bogie-type structure, a load-carrying ladle or other heavy-duty load is placed in the middle of the frame, the load can often reach several tons or even dozens of tons, the lower part of the frame, which is positioned near wheels, is easy to break in the long-time running process, once the break occurs, the buggy ladle or the heavy-duty vehicle is scrapped, the whole frame vehicle body needs to be replaced, the cost of the buggy ladle is very high, but at present, no good method is available for repair construction, and the vehicle which tends to be scrapped in many workshops is abandoned in workshop corners, so that great resource waste is caused.
Disclosure of Invention
The invention aims to provide a method for repairing the damage of a heavy-duty four-wheel rail vehicle frame, which provides a low-cost and good-repairing-effect re-repairing method for repairing a heavy-duty four-wheel vehicle and has a good practical application effect.
The specific scheme of the invention is as follows: a method for repairing damage of a heavy-load four-wheel rail car frame comprises the following steps:
(1) according to the sinking and bending degree of the middle of the damaged frame, pad block assemblies are placed at symmetrical positions below two ends of the damaged frame, and 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, wherein the seam is downwards
The depth of the frame is h, the depth h is less than or equal to the upper and lower thicknesses of the frame, and the depth h is determined according to the actual time required for settlement repair;
(3) standing the frame processed in the step (2) for 8-24 hours, and gradually reducing the heights of the cushion block assemblies at two ends of the frame according to the natural sinking distance of the two ends of the frame in the standing process until the two sides of the frame tend to be in a horizontal state;
(4) starting a jack to jack upwards from the middle of the bottom of the frame until the upper end surface of the frame is completely positioned on the same horizontal plane;
(5) welding and repairing the slit 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 riding rib in the front side plate or the rear side plate, keeping a certain distance between the riding rib and the front side plate and the rear side plate of the frame, welding the lower part of the riding rib on a bottom plate of the frame, adapting the shape of the riding rib to the bottom plate, and welding the upper end of the riding rib on an upper plate of the frame;
(7) and (3) after the horseback ribs are welded, welding the sealing plate by using a steel plate to the cut openings in the step (6), and drilling stress release holes on the welding sealing plate.
Further, the cushion block assembly in the step (1) in the invention is composed of a plurality of steel plate cushion blocks with equal thickness.
Furthermore, the riding rib is in an I-shaped steel structural 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.
Further, in the invention, the cutting modes in the step (2) are all flame cutting.
Further, in the present invention, the stress release hole in the step (7) is a circular hole.
The repairing method provided by the invention has the advantages that the broken and damaged buggy ladle or other heavy-load four-wheel vehicles are repaired again through natural settlement and matching with the horseback structure, the repairing effect is good, the repaired strength can well meet the practical application requirements, the practical 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 practical use and popularization values.
Drawings
FIG. 1 is a schematic view of a front view of a buggy ladle or a four-wheeled truck according to the present invention;
FIG. 2 is a schematic view of a frame structure in a repair of the present invention;
fig. 3 is a schematic view of the cut-away structure A-A in fig. 2.
In the figure: the steel frame comprises the following components, by weight, 1-wheel, 2-frame, 3-ladle, 4-fracture, 5-pad-pattern assembly, 6-seam, 7-jack, 8-riding rib and 9-stress release hole.
Detailed Description
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when products of the present invention are used, and are only used for convenience in describing the present invention or simplifying the description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, or be operated, 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 damage of a heavy-duty four-wheel rail car frame, which comprises the following steps:
(1) according to the middle sinking bending degree of the damaged frame 2, after the breakage, the middle bearing part is usually bent downwards, the bent part of the frame above the wheel has a fracture 4, pad assemblies 5 are placed at symmetrical positions below two ends of the damaged frame, and a jack 7 is erected at the bottom of the middle of the damaged frame;
(2) cutting a seam 6 downwards from the right middle of the upper end face 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 required time for settlement repair, and the time is not selected too fast;
(3) standing the frame processed in the step (2) for 8-24 hours, generally standing the frame at night for about 12 hours without affecting the normal work of a workshop in the daytime, gradually reducing the heights of the cushion block assemblies at two ends of the frame in the standing process according to the natural sinking distance of the two ends of the frame until the two sides of the frame tend to be in a horizontal state, firstly reducing the distance of the two ends of the frame by half, then reducing the heights of the cushion block assemblies by half to enable the two sides of the frame to be similar to the degree of sinking to the horizontal plane, and using the cushion block assemblies to prevent the two sides of the frame from sinking too much and generating secondary deformation;
(4) starting a jack to jack upwards from the middle of the bottom of the frame, wherein fine adjustment is performed, and the jack cannot be jacked too much until the upper end surfaces of the frame are completely positioned on the same horizontal plane;
(5) welding and repairing the slit 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 riding rib 8 in the front side plate or the rear side plate, keeping a certain distance interval between the riding rib and the front side plate and the rear side plate of the frame so as to facilitate the later sealing plate operation, welding the lower part of the riding rib on a bottom plate of the frame, adapting the shape of the riding rib to the bottom plate, and welding the upper end of the riding rib on an upper plate of the frame;
(7) and (3) after the horseback ribs are welded, welding a sealing plate on the cut opening in the step (6) by adopting a steel plate, and 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 rib overlooking direction is I-shaped steel structure shape, and the saddle rib comprises two strengthening rib pterygoid lamina and a longitudinal web, and two strengthening rib pterygoid lamina are linked into an organic whole to longitudinal web.
Further, in this embodiment, the cutting manner in step (2) is flame cutting.
Further, in this embodiment, the stress release hole 9 in the step (7) is a circular hole.
The service strength of the buggy ladle repaired by the method is not inferior to that of the original buggy ladle or four-wheel truck.
The method of the invention is equivalent to repairing four-wheel truck such as buggy ladle and the like by a brand-new low-cost mode, has wide application range, can be popularized to the repair of various similar heavy-duty vehicles after fracture and damage, and greatly reduces the operating cost of enterprises.
The repairing method provided by the invention has the advantages that the broken and damaged buggy ladle or other heavy-load four-wheel vehicles are repaired again through natural settlement and matching with the horseback structure, the repairing effect is good, the repaired strength can well meet the practical application requirements, the practical 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 practical use and popularization values.
Claims (5)
1. A method for repairing damage of a heavy-load four-wheel rail car frame is characterized by comprising the following steps:
(1) according to the sinking and bending degree of the middle of the damaged frame, pad block assemblies are placed at symmetrical positions below two ends of the damaged frame, and 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, wherein the seam is downwards
The depth of the frame is h, the depth h is less than or equal to the upper and lower thicknesses of the frame, and the depth h is determined according to the actual time required for settlement repair;
(3) standing the frame processed in the step (2) for 8-24 hours, and gradually reducing the heights of the cushion block assemblies at two ends of the frame according to the natural sinking distance of the two ends of the frame in the standing process until the two sides of the frame tend to be in a horizontal state;
(4) starting a jack to jack upwards from the middle of the bottom of the frame until the upper end surface of the frame is completely positioned on the same horizontal plane;
(5) welding and repairing the slit 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 riding rib in the front side plate or the rear side plate, keeping a certain distance between the riding rib and the front side plate and the rear side plate of the frame, welding the lower part of the riding rib on a bottom plate of the frame, adapting the shape of the riding rib to the bottom plate, and welding the upper end of the riding rib on an upper plate of the frame;
(7) and (3) after the horseback ribs are welded, welding the sealing plate by using a steel plate to the cut openings in the step (6), and drilling stress release holes on the welding sealing plate.
2. The method for repairing damage to the frame of a heavy-duty four-wheeled railway vehicle as claimed in claim 1, wherein the pad assembly in step (1) is composed of a plurality of steel pads with equal thickness.
3. The method for repairing damage to a frame of a heavy-duty four-wheeled rail vehicle as claimed in claim 1, wherein the saddle rib has an i-shaped steel structure in a top view direction, and the saddle rib is composed of two reinforcing rib wing plates and a longitudinal web plate, and the two reinforcing rib wing plates are integrally connected through the longitudinal web plate.
4. The method for repairing the damage of the frame of the heavy-duty four-wheel rail car according to claim 1, wherein the cutting manner in the step (2) is flame cutting.
5. The method for repairing damage to frame of heavy-duty four-wheeled rail vehicle as claimed in claim 1, wherein said stress releasing hole in step (7) is a circular 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 true CN114178775A (en) | 2022-03-15 |
| CN114178775B CN114178775B (en) | 2023-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111531121.5A Active CN114178775B (en) | 2021-12-15 | 2021-12-15 | Frame damage repairing method for heavy-duty four-wheel rail car |
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Citations (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 |
| US6546627B1 (en) * | 2000-09-14 | 2003-04-15 | Hitachi, Ltd. | Repair method for a gas turbine |
| CN105537848A (en) * | 2015-12-22 | 2016-05-04 | 秦皇岛首秦金属材料有限公司 | Online repairing method for collision deformation of auxiliary main girders of four-beam double-trolley crane |
| 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 |
| CN110340611A (en) * | 2019-06-06 | 2019-10-18 | 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 |
| 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 |
| 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
Patent Citations (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 |
| US6546627B1 (en) * | 2000-09-14 | 2003-04-15 | Hitachi, Ltd. | Repair method for a gas turbine |
| CN105537848A (en) * | 2015-12-22 | 2016-05-04 | 秦皇岛首秦金属材料有限公司 | Online repairing method for collision deformation of auxiliary main girders of four-beam double-trolley crane |
| 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 |
| CN110340611A (en) * | 2019-06-06 | 2019-10-18 | 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 |
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| Publication number | Publication date |
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| CN114178775B (en) | 2023-06-13 |
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