CN114770027A - Axle repairing method and axle - Google Patents
Axle repairing method and axle Download PDFInfo
- Publication number
- CN114770027A CN114770027A CN202210440041.7A CN202210440041A CN114770027A CN 114770027 A CN114770027 A CN 114770027A CN 202210440041 A CN202210440041 A CN 202210440041A CN 114770027 A CN114770027 A CN 114770027A
- Authority
- CN
- China
- Prior art keywords
- axle
- bolt
- bolt hole
- original
- plugging
- 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
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000012545 processing Methods 0.000 claims abstract description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000003801 milling Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000008439 repair process Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The embodiment of the application provides an axle repairing method and an axle, wherein the method comprises the following steps: processing a sinking platform capable of accommodating a plugging bolt at an original bolt hole at the axle end of an axle; plugging a plugging bolt into the original bolt hole; a new bolt hole is formed in the shaft end, and a preset included angle is formed between a connecting line of the center of the new bolt hole and the axle center of the axle and a connecting line of the center of the original bolt hole and the axle center. In the embodiment of the application, the repairing steps in the repairing process of the axle are simple, so that the axle can be repeatedly used, and the maintenance cost is reduced.
Description
Technical Field
The application relates to the technical field of rail vehicle maintenance, in particular to an axle repairing method and an axle.
Background
The axle is one of the important parts on the bogie in large road maintenance machinery, it is the pivot of wheel pair rotation, the axle not only forms the wheel pair with the wheel, both ends of the axle also need to cooperate with axle box device to realize the moving function of the vehicle, the quality of the axle is good or bad, directly concerns the running safety of the vehicle, so must strictly control the quality problem in the manufacture and maintenance of the axle.
Generally, the maintenance process of the axle comprises a step of judging whether the internal thread of the bolt hole at the axle end is qualified or not, a thread comprehensive detection method which is commonly used in the industry is adopted, a thread plug gauge is used for detecting, the internal thread which is stopped by a go gauge or screwed in by a no-go gauge is judged to be unqualified, the whole axle is treated according to scrapping, but the service life of the axle is far short of the specified service life, and the repair cost is higher.
Disclosure of Invention
In order to solve one of the technical defects, the embodiment of the application provides an axle repairing method and an axle.
According to a first aspect of the embodiments of the present application, there is provided an axle repairing method, including the steps of:
processing a sinking platform capable of accommodating a plugging bolt at an original bolt hole at the axle end of an axle;
plugging a plugging bolt into the original bolt hole;
a new bolt hole is formed in the shaft end, and a preset included angle is formed between a connecting line of the center of the new bolt hole and the shaft center of the axle and a connecting line of the center of the original bolt hole and the shaft center.
According to a second aspect of the embodiments of the present application, there is provided an axle repaired by the method for repairing an axle as described above.
By adopting the axle repairing method and the axle provided by the embodiment of the application, the following advantages are achieved:
avoid the axletree to cause a large amount of axletree products to scrap because of the axle head new bolt hole detects nonconforming, cause the wasting of resources, compare with prior art, overcome prior art well axletree axle head bolt hole prosthetic loaded down with trivial details process, simplified the restoration step in former axletree end former bolt hole, promoted repair efficiency, reduced big quick-witted cost of maintenance.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic view illustrating alignment of an axle end of an axle in an axle repairing method according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an axle end original bolt hole machining sinking platform of an axle repair method provided in the embodiment of the present application;
fig. 3 is a schematic structural view of a plug bolt of an axle repairing method according to an embodiment of the present disclosure;
fig. 4 is a left side view of a blocking bolt structure of an axle repairing method according to the embodiment of the present application;
fig. 5 is a schematic structural view of an axle end original bolt hole mounting and plugging bolt of the axle end repair method provided by the embodiment of the application;
fig. 6 is a schematic structural view of a plug of a bolt for milling an original bolt hole in an axle end of an axle according to the axle repairing method provided in the embodiment of the present application;
fig. 7 is a schematic structural view illustrating a new bolt hole formed in one end of an axle according to an axle repairing method provided in the embodiment of the present application;
fig. 8 is a schematic plan view illustrating a new bolt hole formed in one end of an axle according to an axle repairing method provided in the embodiment of the present application;
FIG. 9 is a schematic plan view of an axle end of an axle repair method provided in accordance with an embodiment of the present application;
fig. 10 is a schematic diagram of axle end double-scale marks of an axle repair method according to an embodiment of the present application;
fig. 11 is a flowchart of an axle repairing method according to an embodiment of the present application.
The mark in the figure is: the axle comprises an axle 1, an original bolt hole 11, a blocking bolt 2, a new bolt hole 3 and a repeated engraving mark 4.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
Fig. 1 is a schematic view of alignment of a plugging bolt installed at an original axle end of an axle in an axle repairing method provided in an embodiment of the present application, fig. 2 is a schematic view of a sinking platform for machining an axle end original bolt hole in an axle repairing method provided in an embodiment of the present application, fig. 3 is a schematic view of a plugging bolt structure in an axle repairing method provided in an embodiment of the present application, fig. 4 is a left view of a plugging bolt structure in an axle repairing method provided in an embodiment of the present application, fig. 5 is a schematic view of a plugging bolt installed in an axle end original bolt hole in an axle repairing method provided in an embodiment of the present application, fig. 6 is a schematic view of a plug structure for milling an axle end original bolt hole in an axle repairing method provided in an embodiment of the present application, fig. 7 is a schematic view of a new bolt hole structure opened at one end of an axle in an axle repairing method provided in an embodiment of the present application, fig. 8 is a schematic plan view of an axle end provided with a new bolt hole in an axle end of an axle repairing method provided in the embodiment of the present application, fig. 9 is a schematic plan view of an axle end of an axle repairing method provided in the embodiment of the present application, fig. 10 is a schematic plan view of an axle end of an axle repairing method provided in the embodiment of the present application, and fig. 11 is a flowchart of an axle repairing method provided in the embodiment of the present application.
As shown in fig. 1 to 11, an axle repairing method includes the steps of:
s1, processing a sinking platform capable of accommodating the plugging bolt at the original bolt hole at the axle end of the axle;
exemplarily, an axle of the wheel set to be repaired is transferred to a boring machine or a planer type milling machine, two V-shaped blocks are erected on the axle diameters of two ends of the axle, the axle diameters and the V-shaped blocks are noticed, copper sheets are padded at the axle diameters and a pressing plate to protect the axle diameters, the axle diameters are prevented from being damaged by pressing, the axle is aligned, the axle is pressed and positioned by the pressing plate, a plugging bolt 2 is installed at an original bolt hole 11 of the axle end of the axle 1, and the center of the plugging bolt 2 is aligned by the machine tool, namely, the center of the original bolt hole of the axle end of the axle 1 is aligned; as shown in fig. 2, the plugging bolt 2 is detached, and a sinking platform is machined at the original bolt hole opening of the axle end 1 in a boring mode.
S2, plugging the plugging bolt into the original bolt hole;
exemplarily, as shown in fig. 3, according to the specifications of the internal threads of the shaft end threaded hole of the shaft of the original axle 1, selecting M16, M20 and M24 corresponding to the specifications of the internal threads to plug the bolt 2; furthermore, the plugging bolt 2 can be coated with a Letai 263 or other thread fastening glue with strength, the plugging bolt 2 is screwed into the original bolt hole of the shaft end of the axle 1, and the plugging bolt 2 and the sinking platform of the original bolt hole in the shaft end of the axle 1 are screwed and fixed; as shown in fig. 6, the protruding portion of the plug bolt plug 2 is milled in the tightening direction of the plug bolt 2, and the protruding portion of the plug bolt plug 2 is exposed to the axial end face of the axle 1, that is: the surface of the plugging bolt (2) is flush with the end face of the shaft.
And S3, forming a new bolt hole at the shaft end, wherein a preset included angle is formed between a connecting line of the center of the new bolt hole and the axle center of the axle and a connecting line of the center of the original bolt hole and the axle center.
Exemplarily, as shown in fig. 7, new bolt holes 3 are newly opened at the positions of the original bolt hole distribution diameters of the axle ends of the axle 1 by rotating an angle α, and a preset included angle of 60 degrees is formed between a connecting line of the centers of the new bolt holes 3 and the axle center of the axle 1 and a connecting line of the centers of the original bolt holes and the axle center; as shown in fig. 8, the centers of the new bolt holes 3 and the centers of the original bolt holes are located on the same circle, the number of the original bolt holes is three, and the number of the new bolt holes 3 is three; as shown in fig. 9, a new bolt hole 3 is located between two original bolt holes. And (4) detecting whether the new threaded hole 3 is qualified or not by using a standard thread plug gauge, and engraving, printing or coating a repeated engraving mark 4 on the end face of the axle shaft for identification as shown in fig. 10.
According to a second aspect of the embodiments of the present application, there is provided an axle repaired by the method of repairing the axle in steps S1 to S3.
In the implementation of the embodiments of the present application, the following two alternatives are found:
1. plugging and welding the original bolt hole, and shifting an alpha angle for reprocessing;
2. and (4) reaming and tapping on the basis of the original bolt hole to process a new thread.
In the implementation process of the two alternative schemes, certain potential safety hazards exist in the two alternative schemes compared with the embodiment of the scheme, if the hardness and the brittleness of the welding seam of the end bolt hole of the welding plug are high, the risk of cracks is easy to appear in the subsequent use process, the specification of the thread and the end cover need to be changed when a new thread is reamed and tapped on the basis of the original bolt hole, certain potential safety hazards exist, meanwhile, new materials such as the end cover and the bolt are added, and the management difficulty is high. Therefore, the above two alternatives have obvious disadvantages relative to the embodiments of the present application.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered limiting of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; may be mechanically, electrically or otherwise in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. An axle repairing method, comprising:
processing a sinking platform capable of accommodating the plugging bolt (2) at an original bolt hole at the axle end of the axle;
plugging a plugging bolt (2) into the original bolt hole;
a new bolt hole (3) is formed in the shaft end, and a preset included angle is formed between a connecting line of the center of the new bolt hole (3) and the axle center and a connecting line of the center of the original bolt hole and the axle center.
2. The method of claim 1, further comprising, after inserting a plugging bolt into the original bolt hole:
and (3) milling the part of the plugging bolt (2) protruding out of the end surface of the shaft until the surface of the plugging bolt (2) is flush with the end surface of the shaft.
3. The method as claimed in claim 1, wherein the step of processing a sinking platform capable of accommodating the blocking bolt at the original bolt hole of the axle end of the axle comprises the following steps:
a sinking platform capable of accommodating the plugging bolt (2) is machined in an original bolt hole at the axle end of the axle in a boring mode.
4. A method according to claim 3, wherein before machining a counter-sunk table for receiving the blocking bolt in the original bolt hole at the axle end of the axle, further comprising:
and installing a plugging bolt (2) in the original bolt hole, and performing machine tool alignment according to the position of the plugging bolt (2) to determine the position of the original bolt hole.
5. The method of claim 3, further comprising, prior to inserting a blind bolt into the original bolt hole:
and coating thread fastening glue on the plugging bolt (2).
6. The method of claim 1, further comprising, after opening the new bolt hole at the axial end:
and detecting the new threaded hole (3) by using a standard thread plug gauge.
7. The method of claim 6, further comprising:
and after the new threaded hole (3) is detected to be qualified, marking, printing or coating a shaft end mark (4) on the shaft end surface.
8. Method according to claim 1, characterized in that the centre of the new bolt hole (3) is located on the same circle as the centre of the original bolt hole;
the preset included angle formed between the connecting line of the center of the new bolt hole (3) and the axis and the connecting line of the center of the original bolt hole and the axis is 60 degrees.
9. The method of claim 8, wherein the number of said original bolt holes is three; the number of the new bolt holes (3) is three; a new bolt hole (3) is located between the two original bolt holes.
10. An axle, characterized in that it is repaired by a method as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210440041.7A CN114770027A (en) | 2022-04-25 | 2022-04-25 | Axle repairing method and axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210440041.7A CN114770027A (en) | 2022-04-25 | 2022-04-25 | Axle repairing method and axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114770027A true CN114770027A (en) | 2022-07-22 |
Family
ID=82433957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210440041.7A Pending CN114770027A (en) | 2022-04-25 | 2022-04-25 | Axle repairing method and axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114770027A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1911590A (en) * | 2006-08-31 | 2007-02-14 | 中国南车集团戚墅堰机车车辆厂 | Fast repairing method of internal screw |
| US20150190889A1 (en) * | 2014-01-07 | 2015-07-09 | United Technologies Corporation | Systems and methods for solid state metal repair |
| CN204506349U (en) * | 2015-04-09 | 2015-07-29 | 齐齐哈尔轨道交通装备有限责任公司 | Railway truck and axletree thereof |
| CN110449823A (en) * | 2019-07-31 | 2019-11-15 | 中国航发沈阳发动机研究所 | A kind of casting assembled method for blocking |
| CN112846635A (en) * | 2020-12-30 | 2021-05-28 | 柳州机车车辆有限公司 | Method for repairing transverse threaded hole of railway passenger car bogie |
| CN112916968A (en) * | 2021-01-29 | 2021-06-08 | 共享智能装备有限公司 | Threaded hole repairing method |
-
2022
- 2022-04-25 CN CN202210440041.7A patent/CN114770027A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1911590A (en) * | 2006-08-31 | 2007-02-14 | 中国南车集团戚墅堰机车车辆厂 | Fast repairing method of internal screw |
| US20150190889A1 (en) * | 2014-01-07 | 2015-07-09 | United Technologies Corporation | Systems and methods for solid state metal repair |
| CN204506349U (en) * | 2015-04-09 | 2015-07-29 | 齐齐哈尔轨道交通装备有限责任公司 | Railway truck and axletree thereof |
| CN110449823A (en) * | 2019-07-31 | 2019-11-15 | 中国航发沈阳发动机研究所 | A kind of casting assembled method for blocking |
| CN112846635A (en) * | 2020-12-30 | 2021-05-28 | 柳州机车车辆有限公司 | Method for repairing transverse threaded hole of railway passenger car bogie |
| CN112916968A (en) * | 2021-01-29 | 2021-06-08 | 共享智能装备有限公司 | Threaded hole repairing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20090294396A1 (en) | Central datum feature on railroad coupler body and corresponding gauges | |
| CN101633091A (en) | Method for processing differential case assembly | |
| CN107984165B (en) | Machining method for large wind tunnel compressor shell | |
| CN110449848B (en) | Processing technology for overlaying stellite hard alloy thin-wall sleeve | |
| US8544662B2 (en) | Central datum feature on railroad coupler body and corresponding gauges | |
| CN101758360A (en) | Repairing and processing method of main bearing hole on stand of diesel engine for ship | |
| CN109048214B (en) | A kind of aluminum alloy melt tank car production technology | |
| CN113211018B (en) | Machining process of ultra-long large-diameter thin-wall steel pipe | |
| CN110744269B (en) | Manufacturing and mounting method of tire crane support leg flange | |
| CN107584255B (en) | Processing technology for punching and welding axle housing | |
| CN114770027A (en) | Axle repairing method and axle | |
| CN105665770A (en) | Boring technology of rudder horn | |
| CN110509009A (en) | A kind of turntable processing technology | |
| CN112496134B (en) | Spinning method of curved surface thin-wall end socket with flanging hole | |
| CN103454137A (en) | Tearing device for detecting welding strength of welding spot and detecting method | |
| CN214393059U (en) | Device for repairing transverse threaded hole of railway passenger car bogie | |
| CN206351363U (en) | A kind of mechanical concentric parts with modular construction | |
| CN112846635A (en) | Method for repairing transverse threaded hole of railway passenger car bogie | |
| CN109926858A (en) | Rope climbing block processing tool | |
| CN111633388B (en) | Method for machining small lug hole of control ring of through-flow turbine | |
| CN105798547A (en) | Machining process for mine car front suspension oil cylinder block | |
| CN117680918A (en) | Impeller size repairing method | |
| CN217096037U (en) | Calibrator for rapid installation and positioning during metal part wire cutting machining | |
| CN217290530U (en) | Processing tool for boring | |
| CN212094507U (en) | Machine presss from both sides high commonality countersink device of blade formula |
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 |