CN105537849A - Method for restoring threaded hole of locomotive axle box pull rod seat - Google Patents
Method for restoring threaded hole of locomotive axle box pull rod seat Download PDFInfo
- Publication number
- CN105537849A CN105537849A CN201511006485.6A CN201511006485A CN105537849A CN 105537849 A CN105537849 A CN 105537849A CN 201511006485 A CN201511006485 A CN 201511006485A CN 105537849 A CN105537849 A CN 105537849A
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- China
- Prior art keywords
- screwed hole
- rod seat
- steel
- axle box
- hole
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention discloses a method for restoring a threaded hole of a locomotive axle box pull rod seat. The method comprises the steps that 1, locating basis fixing is carried out; 2, the threaded hole of the axle box pull rod seat is reamed, wherein a phi24.5 auger bit is used for drilling a threaded bottom hole in an axle box pull rod seat threaded hole workpiece, phi24.43o<+0.375> of the drilled threaded bottom hole and the relative position dimension are guaranteed, and the depth is 98o<+1> mm; 3, a guide thread of the threaded hole of the axle box pull rod seat is tapped; 4, hand tapping is carried out; 5, tapping residues are removed; 6, a steel wire screw sleeve is mounted; and 7, inspection is carried out through a go gauge and a non-go gauge. According to the method for restoring the threaded hole of the locomotive axle box pull rod seat, more labor and time can be saved during maintenance of the locomotive framework axle box pull rod seat, labor intensity is effectively lowered, and maintenance cost is reduced; and the maintenance process is simplified, the technical difficulty coefficient of maintenance is reduced, and the maintenance quality of the locomotive framework axle box pull rod seat can be guaranteed.
Description
Technical field
The invention belongs to locomotive axle box draw-bar seat screwed hole recovery technique field, be specifically related to a kind of locomotive axle box draw-bar seat screwed hole restorative procedure.
Background technology
Since 06 year, high-power AC transmission power car is born and batch drops into utilization, indicates that China railways locomotive industry successfully achieves by the conversion of DC Transmission to AC Drive.The features such as it is superior that high-power electric locomotive has hauling ability, and power is large, adhesion availability is high, and Acceleration of starting performance is good, and reliability is high, and energy-saving and emission-reduction are good.Electric locomotive is a kind of high-speed heavy loading locomotive, drops into and applies to now, have and need in a large number to carry out two annual tests from batch; Because locomotive speed is high, load-carrying is large, and have high accuracy, high stability, high reliability, this just requires must ensure high accuracy, high-quality to the maintenance of car.
Axlebox rod is locomotive critical component, axlebox rod be with the wheel of rubber element to the elasticity positioning element of axle box and framework, transmit longitudinal force and cross force by it, stressed larger in locomotive operation.Locomotive is in first two annual test process, axlebox rod seat bolt hole disqualification rate is about 19%, because of locomotive operationally, because load is larger, running environment is comparatively severe, and draw-bar seat screwed hole is stressed comparatively large, causes locomotive in second two annual test process, axlebox rod seat bolt hole disqualification rate is about 57%, occurs that screwed hole in enormous quantities does not meet the situation of drawing requirement.In prior art to defective bolt hole repair process be: hole milling, built-up welding, ultrasonic examination, boring, again tapping; The every chassis of this repair method needs be about 350 hours man-hour, chassis cost of overhaul average out to 4500 yuan, labour intensity is large, and the heap postwelding strength of materials is approximately 80% of former strength of parent, draw-bar seat intensity can reduce, and locomotive exists serious hidden danger of quality in running.Need to propose new renovation technique according to above analysis, neither affect axlebox rod seat screwed hole installation requirement, the intensity of draw-bar seat can not be destroyed again.
Summary of the invention
The present invention is in order to solve the problems of the technologies described above, provide a kind of locomotive axle box draw-bar seat screwed hole restorative procedure, its object is to that locomotive bogie axlebox rod seat is overhauled more laborsaving, save time, effective reduction labour intensity, saves the cost of overhaul, simplifies repair process, reduce the technical difficulty coefficient of maintenance, and the repair quality of locomotive bogie axlebox rod seat can be ensured.
The technical solution adopted in the present invention is: adopt first to damage the reaming of axlebox rod seat screwed hole, rear on the axlebox rod seat screwed hole after the further tapping of axlebox rod seat screwed hole, then the reaming tapping after reaming installation steel-wire screw-socket.
Concrete a kind of locomotive axle box draw-bar seat screwed hole restorative procedure step is as follows:
Step one, positioning datum are fixed: by framework horizontal on processing platform, with four top pick supporting frame truck side sills, adjust leveling framework up and down by top pick.Set up workpiece coordinate system, so that framework four primary spring seats respectively to be adopted a bit, set up a plane as datum plane at 4, by framework opposite side axlebox rod hole site, fixing reparation axlebox rod seat screwed hole position, side;
Step 2, the reaming of axlebox rod seat screwed hole: bore thread Pilot hole to axlebox rod seat screwed hole workpiece with Φ 24.5 spiral bit, ensure the thread Pilot hole Ф 24.43 got out
and relative position size, the degree of depth 98
mm;
Step 3, threaded axlebox rod seat screwed hole guide thread: by ST24 × 2 steel-wire screw-socket special screw tap tapping guide thread, degree of depth 30mm;
Step 4, hand tapping: have screw tap hand tapping special with ST24 × 2 steel-wire screw-sockets on the axlebox rod seat screwed hole of guide thread threaded, threaded go out screwed hole degree of depth 90mm, and check the precision of the screwed hole of manual tapping with ST24 × 2 bottom-hole plug gauge;
Step 5, clear up threaded residual: clean clean processing residual foreign material in axlebox rod hole;
Step 6, installation steel-wire screw-socket: steel-wire screw-socket M24 × 2-30CD is aimed at threaded good axlebox rod seat screwed hole, steel-wire screw-socket installing handle is made to embed in stem guiding trough, rotate erecting tools handle and steel-wire screw-socket is screwed in screw, swivel nut screws in axlebox rod seat screwed hole, and steel-wire screw-socket installing handle is thrust, make the steel-wire screw-socket of ST24 × 2 expose thread Pilot hole 2 ~ 3 screw threads;
Step 7, use drift and no-go gage inspection: M24 × 2 plug thread gauge checks screwed hole, and drift passes through, it is qualified 2.5 ~ 3 pitch that no-go gage screws in reach.
In step one, by framework horizontal on processing platform, with four top pick supporting frame truck side sills, adjust leveling framework up and down by top pick.Set up workpiece coordinate system, so that framework four primary spring seats respectively to be adopted a bit, set up a plane as datum plane at 4, by framework opposite side axlebox rod hole site, fixing reparation axlebox rod seat screwed hole position, side; Mainly in order to process the axlebox rod seat screwed hole meeting drawing requirement, to keep the flatness with axle box spring base.
In step 2, if define limit diameter deviation and the limit depth deviation of the reaming of axlebox rod seat screwed hole, to process the axlebox rod seat screwed hole of size conforms drawing requirement.
In step 3, be 30mm guide thread by the ST24 × 2 steel-wire screw-socket special screw tap tapping degree of depth, main purpose is the effect that screw tap hand tapping in order to further use ST24 × 2 steel-wire screw-socket special provides guiding, and because guiding line does not need too dark, the effect can playing guiding is just passable.
In step 4, screw tap hand tapping special with ST24 × 2 steel-wire screw-socket on the axlebox rod seat screwed hole of guide thread is had threaded, threaded go out screwed hole degree of depth 90mm, and check the precision of the screwed hole of manual tapping with ST24 × 2 bottom-hole plug gauge, threaded go out screwed hole degree of depth 90mm think that the height of nut is 90mm; Main purpose is in order to fine finishining goes out the screwed hole matched with steel-wire screw-socket.
In step 5, clean clean processing residual foreign material in axlebox rod hole; Main purpose is on the axlebox rod seat screwed hole in order to make steel-wire screw-socket more successfully be arranged on to process, if axlebox rod seat screwed hole remains the precision that foreign material will affect axlebox rod seat screwed hole.
In step 6, steel-wire screw-socket M24 × 2-30CD is aimed at threaded good axlebox rod seat screwed hole, installing handle is made to embed in stem guiding trough, rotate erecting tools handle and steel-wire screw-socket is screwed in screw, swivel nut screws in axlebox rod seat screwed hole, and steel-wire screw-socket installing handle is thrust, make the steel-wire screw-socket of ST24 × 2 expose thread Pilot hole 2 ~ 3 screw threads; The main purpose done like this is in order to the screw of fixing axle box draw-bar seat can quick and precisely be fixed, and facilitates installation exercise.
In step 7, M24 × 2 plug thread gauge checks screwed hole, and drift passes through, and it is qualified 2.5 ~ 3 pitch that no-go gage screws in reach; The main purpose done like this is the interference fit in order to check fixing axle box draw-bar seat screw and the axlebox rod seat screwed hole after repairing, and improves the precision of the axlebox rod seat screwed hole after repairing.
In step 7, during drift and no-go gage check, if drift not by, then illustrating that aperture is little, is also defective, but can make it qualified by heavily processing, if M24 × 2 plug thread gauge checks defective, take out steel-wire screw-socket, reinstall steel-wire screw-socket according to above-mentioned steps; If not-go-end by, illustrate that aperture is large, defective, and can not heavily process;
Beneficial effect of the present invention: the technical program provides a kind of locomotive axle box draw-bar seat screwed hole restorative procedure, its object is to that locomotive bogie axlebox rod seat is overhauled more laborsaving, save time, effective reduction labour intensity, save the cost of overhaul, simplify repair process, reduce the technical difficulty coefficient of maintenance, and the repair quality of locomotive bogie axlebox rod seat can be ensured.
Detailed description of the invention
Be described further the present invention below in conjunction with specific embodiment, these embodiments are only not used in for illustration of the present invention and limit the scope of the invention.
Embodiment 1
A kind of concrete steps of locomotive axle box draw-bar seat screwed hole restorative procedure are:
Step one, positioning datum are fixed: by framework horizontal on processing platform, with four top pick supporting frame truck side sills, adjust leveling framework up and down by top pick.Set up workpiece coordinate system, so that framework four primary spring seats respectively to be adopted a bit, set up a plane as datum plane at 4, by framework opposite side axlebox rod hole site, fixing reparation axlebox rod seat screwed hole position, side;
Step 2, the reaming of axlebox rod seat screwed hole: bore thread Pilot hole to axlebox rod seat screwed hole workpiece with Φ 24.5 spiral bit, ensure the thread Pilot hole Ф 24.43 got out
and relative position size, the degree of depth 98
mm;
Step 3, threaded axlebox rod seat screwed hole guide thread: by ST24 × 2 steel-wire screw-socket special screw tap tapping guide thread, degree of depth 30mm;
Step 4, hand tapping: have screw tap hand tapping special with ST24 × 2 steel-wire screw-sockets on the axlebox rod seat screwed hole of guide thread threaded, threaded go out screwed hole degree of depth 90mm, and check the precision of the screwed hole of manual tapping with ST24 × 2 bottom-hole plug gauge;
Step 5, clear up threaded residual: clean clean processing residual foreign material in axlebox rod hole;
Step 6, installation steel-wire screw-socket: steel-wire screw-socket M24 × 2-30CD is aimed at threaded good axlebox rod seat screwed hole, steel-wire screw-socket installing handle is made to embed in stem guiding trough, rotate erecting tools handle and steel-wire screw-socket is screwed in screw, swivel nut screws in axlebox rod seat screwed hole, and steel-wire screw-socket installing handle is thrust, make the steel-wire screw-socket of ST24 × 2 expose thread Pilot hole 2 screw threads;
Step 7, use drift and no-go gage inspection: M24 × 2 plug thread gauge checks screwed hole, and drift passes through, it is qualified 2.5 pitch that no-go gage screws in reach.
Embodiment 2
A kind of concrete steps of locomotive axle box draw-bar seat screwed hole restorative procedure are:
Step one, positioning datum are fixed: by framework horizontal on processing platform, with four top pick supporting frame truck side sills, adjust leveling framework up and down by top pick.Set up workpiece coordinate system, so that framework four primary spring seats respectively to be adopted a bit, set up a plane as datum plane at 4, by framework opposite side axlebox rod hole site, fixing reparation axlebox rod seat screwed hole position, side;
Step 2, the reaming of axlebox rod seat screwed hole: bore thread Pilot hole to axlebox rod seat screwed hole workpiece with Φ 24.5 spiral bit, ensure the thread Pilot hole Ф 24.43 got out
and relative position size, the degree of depth 98
mm;
Step 3, threaded axlebox rod seat screwed hole guide thread: by ST24 × 2 steel-wire screw-socket special screw tap tapping guide thread, degree of depth 30mm;
Step 4, hand tapping: have screw tap hand tapping special with ST24 × 2 steel-wire screw-sockets on the axlebox rod seat screwed hole of guide thread threaded, threaded go out screwed hole degree of depth 90mm, and check the precision of the screwed hole of manual tapping with ST24 × 2 bottom-hole plug gauge;
Step 5, clear up threaded residual: clean clean processing residual foreign material in axlebox rod hole;
Step 6, installation steel-wire screw-socket: steel-wire screw-socket M24 × 2-30CD is aimed at threaded good axlebox rod seat screwed hole, steel-wire screw-socket installing handle is made to embed in stem guiding trough, rotate erecting tools handle and steel-wire screw-socket is screwed in screw, swivel nut screws in axlebox rod seat screwed hole, and steel-wire screw-socket installing handle is thrust, make the steel-wire screw-socket of ST24 × 2 expose thread Pilot hole 3 screw threads;
Step 7, use drift and no-go gage inspection: M24 × 2 plug thread gauge checks screwed hole, and drift passes through, it is qualified background technology 3 pitch that no-go gage screws in reach.
Claims (3)
1. a locomotive axle box draw-bar seat screwed hole restorative procedure, is characterized in that: step one, positioning datum are fixed: by framework horizontal on processing platform, with four top pick supporting frame truck side sills, adjusts leveling framework up and down by top pick; Set up workpiece coordinate system, so that framework four primary spring seats respectively to be adopted a bit, set up a plane as datum plane at 4, by framework opposite side axlebox rod hole site, fixing reparation axlebox rod seat screwed hole position, side; Step 2, the reaming of axlebox rod seat screwed hole: bore thread Pilot hole to axlebox rod seat screwed hole workpiece with Φ 24.5 spiral bit, ensure the thread Pilot hole Ф 24.43 got out
and relative position size, the degree of depth 98
mm; Step 3, threaded axlebox rod seat screwed hole guide thread: by ST24 × 2 steel-wire screw-socket special screw tap tapping guide thread; Step 4, hand tapping: have screw tap hand tapping special with ST24 × 2 steel-wire screw-sockets on the axlebox rod seat screwed hole of guide thread threaded, threaded go out the screwed hole degree of depth, and check the precision of the screwed hole of manual tapping with ST24 × 2 bottom-hole plug gauge; Step 5, clear up threaded residual: clean clean processing residual foreign material in axlebox rod hole; Step 6, installation steel-wire screw-socket: steel-wire screw-socket M24 × 2-30CD is aimed at threaded good axlebox rod seat screwed hole, steel-wire screw-socket installing handle is made to embed in stem guiding trough, rotate erecting tools handle and steel-wire screw-socket is screwed in screw, swivel nut screws in axlebox rod seat screwed hole, and steel-wire screw-socket installing handle is thrust, make the steel-wire screw-socket of ST24 × 2 expose thread Pilot hole 2 ~ 3 screw threads; Step 7, use drift and no-go gage inspection: M24 × 2 plug thread gauge checks screwed hole, and drift passes through, it is qualified 2.5 ~ 3 pitch that no-go gage screws in reach.
2. a kind of locomotive axle box draw-bar seat screwed hole restorative procedure according to claim 1, is characterized in that: be 30mm by the degree of depth of ST24 × 2 steel-wire screw-socket special screw tap tapping guide thread in step 3.
3. a kind of locomotive axle box draw-bar seat screwed hole restorative procedure according to claim 1, it is characterized in that: in step 4, have screw tap hand tapping special with ST24 × 2 steel-wire screw-sockets on the axlebox rod seat screwed hole of guide thread threaded, threaded go out the screwed hole degree of depth be 90mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511006485.6A CN105537849A (en) | 2015-12-29 | 2015-12-29 | Method for restoring threaded hole of locomotive axle box pull rod seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511006485.6A CN105537849A (en) | 2015-12-29 | 2015-12-29 | Method for restoring threaded hole of locomotive axle box pull rod seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105537849A true CN105537849A (en) | 2016-05-04 |
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ID=55817654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511006485.6A Pending CN105537849A (en) | 2015-12-29 | 2015-12-29 | Method for restoring threaded hole of locomotive axle box pull rod seat |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907374A (en) * | 2018-08-10 | 2018-11-30 | 常州博瑞电力自动化设备有限公司 | A kind of through hole whorl restorative procedure |
| CN109093319A (en) * | 2018-07-20 | 2018-12-28 | 中国航发哈尔滨东安发动机有限公司 | The repair method that Helicopter Main Reducer casing swivel nut loosens |
| CN109128682A (en) * | 2018-07-13 | 2019-01-04 | 广州中船文冲船坞有限公司 | The repair method of chip cooler |
| CN112916968A (en) * | 2021-01-29 | 2021-06-08 | 共享智能装备有限公司 | Threaded hole repairing method |
| CN113695843A (en) * | 2021-07-30 | 2021-11-26 | 江西昌河航空工业有限公司 | Method for processing internal thread of steel wire thread insert |
| CN113798776A (en) * | 2021-08-24 | 2021-12-17 | 广州文冲船舶修造有限公司 | Method for repairing corrosion of bolt hole of marine main machine frame |
| CN115780922A (en) * | 2023-02-08 | 2023-03-14 | 杭州芯云半导体技术有限公司 | IC part screw hole sliding tooth correction method |
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| CN102909519A (en) * | 2012-11-21 | 2013-02-06 | 南车戚墅堰机车有限公司 | Repair method of bolt hole of machine body cylinder |
| CN104209692A (en) * | 2014-08-19 | 2014-12-17 | 中国长安汽车集团股份有限公司四川建安车桥分公司 | Repairing method for threaded holes of micro car pipe inserting type rear axle housing |
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| CN204135627U (en) * | 2014-08-07 | 2015-02-04 | 宁夏共享装备有限公司 | The stifled fix tool of a kind of heavy castings class screw thread edge |
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| 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 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128682A (en) * | 2018-07-13 | 2019-01-04 | 广州中船文冲船坞有限公司 | The repair method of chip cooler |
| CN109093319A (en) * | 2018-07-20 | 2018-12-28 | 中国航发哈尔滨东安发动机有限公司 | The repair method that Helicopter Main Reducer casing swivel nut loosens |
| CN108907374A (en) * | 2018-08-10 | 2018-11-30 | 常州博瑞电力自动化设备有限公司 | A kind of through hole whorl restorative procedure |
| CN112916968A (en) * | 2021-01-29 | 2021-06-08 | 共享智能装备有限公司 | Threaded hole repairing method |
| CN113695843A (en) * | 2021-07-30 | 2021-11-26 | 江西昌河航空工业有限公司 | Method for processing internal thread of steel wire thread insert |
| CN113798776A (en) * | 2021-08-24 | 2021-12-17 | 广州文冲船舶修造有限公司 | Method for repairing corrosion of bolt hole of marine main machine frame |
| CN113798776B (en) * | 2021-08-24 | 2022-07-19 | 广州文冲船舶修造有限公司 | Method for repairing corrosion of bolt hole of marine main machine frame |
| CN115780922A (en) * | 2023-02-08 | 2023-03-14 | 杭州芯云半导体技术有限公司 | IC part screw hole sliding tooth correction method |
| CN115780922B (en) * | 2023-02-08 | 2023-04-25 | 杭州芯云半导体技术有限公司 | IC component screw hole sliding tooth correction method |
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Application publication date: 20160504 |