CN110434696A - A kind of crankshaft journal surface percent ripple milling tool and its application method - Google Patents
A kind of crankshaft journal surface percent ripple milling tool and its application method Download PDFInfo
- Publication number
- CN110434696A CN110434696A CN201910777575.7A CN201910777575A CN110434696A CN 110434696 A CN110434696 A CN 110434696A CN 201910777575 A CN201910777575 A CN 201910777575A CN 110434696 A CN110434696 A CN 110434696A
- Authority
- CN
- China
- Prior art keywords
- handle
- abrasive body
- percent ripple
- crankshaft
- milling tool
- 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
- 238000003801 milling Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000000227 grinding Methods 0.000 claims abstract description 34
- 230000000694 effects Effects 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 239000010431 corundum Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000003350 kerosene Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 230000000116 mitigating effect Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/35—Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
Abstract
The present invention discloses a kind of crankshaft journal surface percent ripple milling tool and its application method, the milling tool are mainly made of handle (1), locking nut (2) and abrasive body (3)；The abrasive body (3) is 1/3~1/2 arc length and width fan-shaped annulus 0.1mm smaller than being ground axle journal length；It is equipped with a threaded hole (4) in the top center position of abrasive body (3), the bottom arc surface of abrasive body (3) is grinding working face, and its two sides is respectively equipped with escape (5)；The lower end of the handle (1) is equipped with external screw thread, and the threaded hole (4) of externally threaded specification and abrasive body (3) matches；After the lower end of the handle (1) passes through locking nut (2), it is fixed together with the threaded hole (4) of abrasive body (3) using thread connecting mode.Tool construction of the invention is simple, practical, and flexibility ratio is high, removal or the significant effect for mitigating axle journal circumference percent ripple, and rework preocess is simple, at low cost.
Description
Technical field
The invention belongs to engine crankshaft processing technique fields, and in particular to a kind of crankshaft journal surface percent ripple grinding
Tool and its application method.
Background technique
Crankshaft is one of engine core part, and design processing aspect is very strict to main shaft and the requirement of connecting rod neck axle journal,
There are also percent ripplees etc. to require in addition to journal diameter tolerance, circularity and cylindricity, if these requirements are overproof during Crankshaft Machining,
Engine performance decline can be directly resulted in, it is serious Bearing score influence service life of aeroengine directly occur.And in Crankshaft Machining mistake
Often because the reasons such as equipment situation changes, and machining allowance is big lead to processing, there are the overproof feelings of percent ripple to journey in axle journal circumferential surface
Condition；The crankshaft overproof to such percent ripple is all directly to scrap in order to not influence engine performance, without better method place to go
Reason；However it is lost for the crankshaft for being worth thousands of members up to ten thousand too big.According to inventor's market survey and consulting literatures, in current city
There is not a milling tool dedicated for grinding crankshaft journal surface percent ripple on field also.
Summary of the invention
During for the Crankshaft Machining of high value, the main shaft and rod journal percent ripple of appearance
It is overproof to lead to scrap problem, provide a kind of crankshaft journal surface percent ripple milling tool and its application method.Of the invention grinds
Grinder lamps structure is simple, practical, and flexibility ratio is high, removal or the significant effect for mitigating axle journal circumference percent ripple, rework preocess
Simply, at low cost, easy popularization.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of crankshaft journal surface percent ripple milling tool, is mainly made of handle, locking nut and abrasive body；The grinding
Body is 1/3~1/2 arc length and width fan-shaped annulus 0.1mm smaller than being ground axle journal length；In the top center of abrasive body
Position is equipped with a threaded hole, and the bottom arc surface of abrasive body is grinding working face, and its two sides is respectively equipped with escape；Institute
The lower end for the handle stated is equipped with external screw thread, and the threaded hole of externally threaded specification and abrasive body matches；The locking screw
Female external screw thread with handle matches；After the lower end of the handle passes through locking nut, spiral shell is used with the threaded hole of abrasive body
Line connection type is fixed together.
The present invention uses fan-shaped ring abrasive body (watt) for the overproof feature of crankshaft journal surface percent ripple, can be with
Effectively fitting crankshaft journal surface, removal or the significant effect for mitigating axle journal circumference percent ripple.
The present invention further illustrates that the handle is T-handle.The transverse bar of the T-handle be long 100mm,
The pole of diameter Ф 14mm；The vertical rod of T-handle is the pole of long 150mm, diameter Ф 14mm.Transverse bar can use straight-bar
Curved rod can also be used.Transverse bar and vertical rod can form T-handle using welding or other fixed connection modes.
The present invention further illustrates, the internal diameter of the abrasive body be ground the difference of journal diameter 0.005~
In 0.02mm, and the finish for grinding working face is Ra0.8.The outer diameter of the abrasive body is 50~70mm bigger than internal diameter.
The present invention further illustrates that the escape is arc groove.The width ratio of the arc groove is ground axle journal
The big 0.02mm of fillet, radius be ground axle journal radius add fillet size.
Present invention further explanation, threaded hole hole depth 20mm of abrasive body or so.
The present invention also provides the application methods of crankshaft journal surface percent ripple milling tool, comprising the following steps:
Step 1, the grinding work for selecting width, escape and internal diameter to match according to the width, fillet and diameter of crankshaft journal of doing over again
Tool, and get out the abradant corundum class F600~F1000 abrasive pastes of steel and iron parts and adjust the kerosene of viscosity；Needs are done over again
The crankshaft of axle journal percent ripple is placed on the support frame convenient for rotation or top crankshaft two end center is arranged on deflection instrument and prepares
Grinding；
The moderate abrasive pastes of viscosity are equably applied on the grinding working face of abrasive body by step 2；Hand-held handle will be ground
The grinding working face of mill body and the journal contact of percent ripple need to be ground and rotate back and forth grinding journal surface along axle journal circumference；It grinds
Honed journey replaces or is properly added abrasive pastes depending on grinding effect；
Step 3 is wiped crankshaft journal surface abrasive pastes with clean cloth after percent ripple grinding is qualified, is then carried out to crankshaft journal
Stock removal polishing.
Advantages of the present invention:
Milling tool structure of the invention and reworking method are simple, and removal or the effect for mitigating crankshaft journal circumference percent ripple are aobvious
It writes, simple process, use cost are low, should more promote for the crankshaft for being worth thousands of members up to ten thousand, improve crankshaft by doing over again
Quality avoids scrapping and causes unnecessary loss.
Detailed description of the invention
Fig. 1 is the overall structure diagram of one embodiment of the invention.
Fig. 2 is the side structure schematic view of Fig. 1.
Fig. 3 is the structural schematic diagram of handle in one embodiment of the invention.
Fig. 4 is the structural schematic diagram of abrasive body in one embodiment of the invention.
Fig. 5 is the side structure schematic view of Fig. 4.
Appended drawing reference: 1- handle, 2- locking nut, 3- abrasive body, 4- threaded hole, 5- escape.
Specific embodiment
The following further describes the present invention with reference to the drawings.
Embodiment 1:
As shown in Figs. 1-5, a kind of crankshaft journal surface percent ripple milling tool, mainly by handle 1, locking nut 2 and abrasive body 3
Composition；The abrasive body 3 is 1/3 arc length and width fan-shaped annulus 0.1mm smaller than being ground axle journal length；In abrasive body
3 top center position is equipped with a threaded hole 4, and the bottom arc surface of abrasive body 3 is grinding working face, and its two sides is distinguished
Equipped with escape 5；The lower end of the handle 1 is equipped with external screw thread, 4 phase of threaded hole of externally threaded specification and abrasive body 3
Matching；The locking nut 2 and the external screw thread of handle 1 matches；After the lower end of the handle 1 passes through locking nut 2, with
The threaded hole 4 of abrasive body 3 is fixed together using thread connecting mode.The handle 1 is T-handle.The T-handle
Transverse bar be long 100mm, diameter Ф 14mm pole；The vertical rod of T-handle is the pole of long 150mm, diameter Ф 14mm.
The internal diameter of the abrasive body 3 and the difference for being ground journal diameter are about within 0.005mm, and grind the bright and clean of working face
Degree is Ra0.8.The outer diameter of the abrasive body 3 is 50mm bigger than internal diameter.
Embodiment 2:
A kind of crankshaft journal surface percent ripple milling tool is mainly made of handle 1, locking nut 2 and abrasive body 3；Described
Abrasive body 3 is 1/2 arc length and width fan-shaped annulus 0.1mm smaller than being ground axle journal length；In the top center of abrasive body 3
Position is equipped with a threaded hole 4, and the bottom arc surface of abrasive body 3 is grinding working face, and its two sides is respectively equipped with escape
5；The lower end of the handle 1 is equipped with external screw thread, and the threaded hole 4 of externally threaded specification and abrasive body 3 matches；Described
Locking nut 2 and the external screw thread of handle 1 match；After the lower end of the handle 1 passes through locking nut 2, the spiral shell with abrasive body 3
Pit 4 is fixed together using thread connecting mode.The internal diameter of the abrasive body 3 and the difference for being ground journal diameter about exist
Within 0.01mm, and the finish for grinding working face is Ra0.8.The outer diameter of the abrasive body 3 is 60mm bigger than internal diameter.
Embodiment 3:
A kind of crankshaft journal surface percent ripple milling tool is mainly made of handle 1, locking nut 2 and abrasive body 3；Described
Abrasive body 3 is 1/2 arc length and width fan-shaped annulus 0.1mm smaller than being ground axle journal length；In the top center of abrasive body 3
Position is equipped with a threaded hole 4, and the bottom arc surface of abrasive body 3 is grinding working face, and its two sides is respectively equipped with escape
5；The lower end of the handle 1 is equipped with external screw thread, and the threaded hole 4 of externally threaded specification and abrasive body 3 matches；Described
Locking nut 2 and the external screw thread of handle 1 match；After the lower end of the handle 1 passes through locking nut 2, the spiral shell with abrasive body 3
Pit 4 is fixed together using thread connecting mode.The internal diameter of the abrasive body 3 and the difference for being ground journal diameter exist
In 0.02mm, and the finish for grinding working face is Ra0.8.The outer diameter of the abrasive body 3 is 70mm bigger than internal diameter.Described
Escape 5 is arc groove.The width of the arc groove is 0.02mm bigger than the fillet for being ground axle journal, and radius is to be ground axle journal
Radius add fillet size.
The application method of the crankshaft journal surface percent ripple milling tool of above-described embodiment, comprising the following steps:
Step 1, the grinding work for selecting width, escape and internal diameter to match according to the width, fillet and diameter of crankshaft journal of doing over again
Tool, and get out the abradant corundum class F600~F1000 abrasive pastes of steel and iron parts and adjust the kerosene of viscosity；Needs are done over again
The crankshaft of axle journal percent ripple is placed on the support frame convenient for rotation or top crankshaft two end center is arranged on deflection instrument and prepares
Grinding；
The moderate abrasive pastes of viscosity are equably applied on the grinding working face of abrasive body by step 2；Hand-held handle will be ground
The grinding working face of mill body and the journal contact of percent ripple need to be ground and rotate back and forth grinding journal surface along axle journal circumference；It grinds
Honed journey replaces or is properly added abrasive pastes depending on grinding effect；
Step 3 is wiped crankshaft journal surface abrasive pastes with clean cloth after percent ripple grinding is qualified, is then carried out to crankshaft journal
Stock removal polishing.
In the description of the present invention, it is to be understood that, term: "upper", "lower", "top", "bottom", "inner", "outside" etc. refer to
The orientation or positional relationship shown is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of the description present invention, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.
Finally it is noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, those skilled in the art should understand that: it is still
It is possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is equally replaced
It changes；And these are modified or replaceed, the essence for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution
Mind and range.
Claims (8)
1. a kind of crankshaft journal surface percent ripple milling tool, it is characterised in that: mainly by handle (1), locking nut (2) and grind
Mill body (3) composition；
The abrasive body (3) is 1/3~1/2 arc length and width fan-shaped annulus 0.1mm smaller than being ground axle journal length；In
The top center position of abrasive body (3) is equipped with a threaded hole (4), and the bottom arc surface of abrasive body (3) is grinding working face, and
And its two sides is respectively equipped with escape (5)；
The lower end of the handle (1) is equipped with external screw thread, threaded hole (4) phase of externally threaded specification and abrasive body (3)
Match；
The locking nut (2) and the external screw thread of handle (1) matches；
After the lower end of the handle (1) passes through locking nut (2), the side of threaded connection is used with the threaded hole (4) of abrasive body (3)
Formula is fixed together.
2. crankshaft journal surface percent ripple milling tool according to claim 1, it is characterised in that: the handle (1)
For T-handle.
3. crankshaft journal surface percent ripple milling tool according to claim 2, it is characterised in that: the T-handle
Transverse bar be long 100mm, diameter Ф 14mm pole；The vertical rod of T-handle is the pole of long 150mm, diameter Ф 14mm.
4. crankshaft journal surface percent ripple milling tool according to claim 1, it is characterised in that: the abrasive body
(3) internal diameter be ground the difference of journal diameter in 0.005~0.02mm, and the finish for grinding working face is
Ra0.8。
5. crankshaft journal surface percent ripple milling tool according to claim 4, it is characterised in that: the abrasive body
(3) outer diameter is 50~70mm bigger than internal diameter.
6. according to claim 1 or any crankshaft journal surface percent ripple milling tool of 4-5, it is characterised in that: described
Escape (5) be arc groove.
7. crankshaft journal surface percent ripple milling tool according to claim 6, it is characterised in that: the arc groove
Width is 0.02mm bigger than the fillet for being ground axle journal, and radius is size of the radius plus fillet for being ground axle journal.
8. a kind of application method of the crankshaft journal surface percent ripple milling tool as described in claim 1-6 is any, feature
It is, comprising the following steps:
Step 1, the grinding work for selecting width, escape and internal diameter to match according to the width, fillet and diameter of crankshaft journal of doing over again
Tool, and get out the abradant corundum class F600~F1000 abrasive pastes of steel and iron parts and adjust the kerosene of viscosity；Needs are done over again
The crankshaft of axle journal percent ripple is placed on the support frame convenient for rotation or top crankshaft two end center is arranged on deflection instrument and prepares
Grinding；
The moderate abrasive pastes of viscosity are equably applied on the grinding working face of abrasive body by step 2；Hand-held handle will be ground
The grinding working face of mill body and the journal contact of percent ripple need to be ground and rotate back and forth grinding journal surface along axle journal circumference；It grinds
Honed journey replaces or is properly added abrasive pastes depending on grinding effect；
Step 3 is wiped crankshaft journal surface abrasive pastes with clean cloth after percent ripple grinding is qualified, is then carried out to crankshaft journal
Stock removal polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910777575.7A CN110434696A (en) | 2019-08-22 | 2019-08-22 | A kind of crankshaft journal surface percent ripple milling tool and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910777575.7A CN110434696A (en) | 2019-08-22 | 2019-08-22 | A kind of crankshaft journal surface percent ripple milling tool and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110434696A true CN110434696A (en) | 2019-11-12 |
Family
ID=68436969
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910777575.7A Pending CN110434696A (en) | 2019-08-22 | 2019-08-22 | A kind of crankshaft journal surface percent ripple milling tool and its application method |
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| Country | Link |
|---|---|
| CN (1) | CN110434696A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935938A (en) * | 2021-02-05 | 2021-06-11 | 一重集团(黑龙江)重工有限公司 | Method for improving arc contact rate |
| CN114406914A (en) * | 2022-01-07 | 2022-04-29 | 河南顺达新能源科技有限公司 | Tool for quickly repairing crankshaft |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6113471A (en) * | 1999-03-24 | 2000-09-05 | Kuebler; David A. | Chassis journal corrector system |
| CN201559117U (en) * | 2009-11-26 | 2010-08-25 | 兰州瑞迈克电力科技有限公司 | On-site grinding assembly for repairing large-size rotor shaft neck |
| CN202622548U (en) * | 2012-03-31 | 2012-12-26 | 中国一冶集团有限公司 | Fixture for grinding and polishing motor journal |
| CN203125299U (en) * | 2013-02-05 | 2013-08-14 | 南车资阳机车有限公司 | Variable-diameter crankshaft grinding tile |
| CN104385099A (en) * | 2014-11-19 | 2015-03-04 | 辽宁五一八内燃机配件有限公司 | Crankshaft shaft neck grinding device |
| CN108202291A (en) * | 2018-03-21 | 2018-06-26 | 许昌学院 | A kind of cylinder outer circle continuously grinding device |
| CN109093558A (en) * | 2018-10-18 | 2018-12-28 | 中船动力有限公司 | The top bearing shell extracting tool and method for dismounting of diesel engine main bearing |
| CN210756818U (en) * | 2019-08-22 | 2020-06-16 | 桂林福达曲轴有限公司 | Crankshaft journal surface waviness grinding tool |
-
2019
- 2019-08-22 CN CN201910777575.7A patent/CN110434696A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6113471A (en) * | 1999-03-24 | 2000-09-05 | Kuebler; David A. | Chassis journal corrector system |
| CN201559117U (en) * | 2009-11-26 | 2010-08-25 | 兰州瑞迈克电力科技有限公司 | On-site grinding assembly for repairing large-size rotor shaft neck |
| CN202622548U (en) * | 2012-03-31 | 2012-12-26 | 中国一冶集团有限公司 | Fixture for grinding and polishing motor journal |
| CN203125299U (en) * | 2013-02-05 | 2013-08-14 | 南车资阳机车有限公司 | Variable-diameter crankshaft grinding tile |
| CN104385099A (en) * | 2014-11-19 | 2015-03-04 | 辽宁五一八内燃机配件有限公司 | Crankshaft shaft neck grinding device |
| CN108202291A (en) * | 2018-03-21 | 2018-06-26 | 许昌学院 | A kind of cylinder outer circle continuously grinding device |
| CN109093558A (en) * | 2018-10-18 | 2018-12-28 | 中船动力有限公司 | The top bearing shell extracting tool and method for dismounting of diesel engine main bearing |
| CN210756818U (en) * | 2019-08-22 | 2020-06-16 | 桂林福达曲轴有限公司 | Crankshaft journal surface waviness grinding tool |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935938A (en) * | 2021-02-05 | 2021-06-11 | 一重集团(黑龙江)重工有限公司 | Method for improving arc contact rate |
| CN112935938B (en) * | 2021-02-05 | 2023-02-28 | 一重集团(黑龙江)重工有限公司 | Method for improving arc contact rate |
| CN114406914A (en) * | 2022-01-07 | 2022-04-29 | 河南顺达新能源科技有限公司 | Tool for quickly repairing crankshaft |
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