CN102962503B - Machining method for key grooves in pair of gear shafts with engaged herringbone teeth - Google Patents
Machining method for key grooves in pair of gear shafts with engaged herringbone teeth Download PDFInfo
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- CN102962503B CN102962503B CN201210546579.2A CN201210546579A CN102962503B CN 102962503 B CN102962503 B CN 102962503B CN 201210546579 A CN201210546579 A CN 201210546579A CN 102962503 B CN102962503 B CN 102962503B
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Abstract
The invention discloses a machining method for key grooves in a pair of gear shafts with engaged herringbone teeth. The machining method comprises the following steps of: placing two shim plates with the same height on a platform, and erecting the two gear shafts with the herringbone teeth on the two shim plates with the same height: sheathing two strip-shaped lifting ropes with the same length on the two gear shafts with the herringbone teeth so as to ensure that the two gear shafts with the herringbone teeth are engaged and then tightened by a tightening device to be kept at an engaged state; adjusting the strip-shaped lifting ropes to ensure that the centers of the gear shafts with the herringbone teeth are equal to those of the engaged teeth at the engaged state in height, wherein the engaged teeth are taken as reference teeth; respectively arranging parallel blocks at the ends of the two gear shafts with the herringbone teeth, leveling out the upper flat surfaces of the two parallel blocks by a plane surveying device with taking a platform as a reference, then tightening up the parallel blocks on the two gear shafts with the herringbone teeth, and loosening the tightening device; and aligning the parallel blocks at the shaft ends, and milling the key grooves according to a normal key groove milling technology to obtain the finished key grooves. The machining method effectively ensures the accuracy of alignment of the key grooves in the pair of gear shafts with the engaged herringbone teeth with the centers of the teeth.
Description
Technical field
The present invention relates to keyway processing technique field, more particularly, relate to the processing method of keyway on a kind of pair of meshing double helical tooth gear shaft.
Background technology
In metallurgy industry, for two rolls that ensure rolled plate are in the time changing, spindle nose hole direction is consistent, realizes and changing, and requires the center of keyway on a pair of double helical tooth gear shaft being meshed and the tooth center of double helical tooth gear shaft on gear pedestal.I.e. keyway center on a double helical tooth gear shaft and benchmark tooth top center superposition, on a double helical tooth gear shaft, keyway center overlaps with datum tooth groove center, General Requirements coincidence deviation≤0.15 ~ 0.3mm.For example, in the time that the s ymmetry center plane of the keyway on two herringbone gear axles overlaps, the datum tooth of one of them double helical tooth gear shaft is meshed with the benchmark teeth groove of another herringbone gear axle, and datum tooth and the s ymmetry center plane of benchmark teeth groove and the s ymmetry center plane of keyway overlap.
For the processing of this key grooves, in order to ensure the error of centralization at keyway and datum tooth center, conventional processing method is: the strict facewidth length difference, shaft shoulder position length difference in size → corase grind tooth → taking shaft shoulder position length as benchmark controlled when finish turning, the three coordinate metering double helical tooth errors of centralization → according to metering report, roll flute finished product → tri-coordinate metering centering, after centering axle head parallel block and datum tooth central vertical and tighten up → go up milling machine and rotate double helical tooth gear shaft centering axle head parallel block, keyseat finished product.
Conventional processing method needs the strict every errors such as the double helical tooth error of centralization, facewidth length difference, shaft shoulder position length difference in size of controlling; And need special inspecting equipment---three coordinate monitors; Need to repeatedly measure and twice roll flute, working (machining) efficiency is low.
Therefore, as why not needed special inspecting equipment, ensure the accuracy of alignment at keyway Yu Chi center on herringbone gear axle, become those skilled in the art's technical problem urgently to be resolved hurrily.
Summary of the invention
In view of this, the invention provides the processing method of keyway on a kind of pair of meshing double helical tooth gear shaft, not need special inspecting equipment, ensure the accuracy of alignment at keyway Yu Chi center on herringbone gear axle.
For achieving the above object, the invention provides following technical scheme:
A processing method for keyway on pair of meshing double helical tooth gear shaft, comprises step:
1) on platform, place two equal-height padding irons, two double helical tooth gear shafts are erected on two equal-height padding irons;
2) sheathed two isometric banded lifting ropes on two double helical tooth gear shafts, make after the engagement of two double helical tooth gear shafts, tighten to keep engagement with tighting device for support;
3) adjust up and down banded lifting rope, make the center of two double helical tooth gear shafts contour with the center of the engaging tooth in engagement, using this engaging tooth as datum tooth;
4) respectively at the axle head installing parallel block of two double helical tooth gear shafts, taking platform as benchmark, after the upper plane with plane measuring device levelling two parallel blocks, parallel block is fixed tightly on double helical tooth gear shaft, unclamps tighting device for support;
5) parallel block of centering axle head, by normal keyseat technique keyseat finished product.
Preferably, on above-mentioned pair of meshing double helical tooth gear shaft, in the processing method of keyway, described step 1) is specially: two equal-height padding irons are placed on platform, then the axle journal of two double helical tooth gear shafts are erected on two equal-height padding irons.
Preferably, on above-mentioned pair of meshing double helical tooth gear shaft in the processing method of keyway, if the axle journal cylindrical of two double helical tooth gear shafts is not etc., between the less double helical tooth gear shaft of axle journal outside diameter and equal-height padding iron, place the parallels of (Da-Db)/2 thickness, wherein Da is the axle journal diameter of the double helical tooth gear shaft that diameter is larger, and Db is the axle journal diameter of the double helical tooth gear shaft that diameter is less.
Preferably, on above-mentioned pair of meshing double helical tooth gear shaft in the processing method of keyway, described step 4) is specially: install parallel block at the axle head of two double helical tooth gear shafts respectively, taking platform as benchmark, after upper plane with plane measuring device levelling two parallel blocks, parallel block is fixed tightly on double helical tooth gear shaft, unclamps tighting device for support.
Preferably, on above-mentioned pair of meshing double helical tooth gear shaft, in the processing method of keyway, before step 1), also comprise step: the axle journal of platform, equal-height padding iron and double helical tooth gear shaft is cleaned out.
Preferably, on above-mentioned pair of meshing double helical tooth gear shaft in the processing method of keyway, described step 3) is specially: sheathed two isometric banded lifting ropes on two double helical tooth gear shafts, adjust up and down banded lifting rope, adjust the center of two double helical tooth gear shafts contour with the center of the engaging tooth in engagement, using this engaging tooth as datum tooth, and carry out mark by scriber on datum tooth.
Preferably, on above-mentioned pair of meshing double helical tooth gear shaft, in the processing method of keyway, described plane measuring device is dial gauge, dial framework and cushion block.
Preferably, on above-mentioned pair of meshing double helical tooth gear shaft in the processing method of keyway, described parallel block by screws tighten on double helical tooth gear shaft.
Can find out from above-mentioned technical scheme, the processing method of keyway on pair of meshing double helical tooth gear shaft provided by the invention, utilize the characteristic of the rear automatic centering of double helical tooth engagement, centering benchmark by two double helical tooth gear shafts under engagement is transformed on the parallel block of axle head, respectively as the centering benchmark of keyseat, make reference for assembling and machining benchmark unified, eliminate the impact of every error, effectively ensure the accuracy of alignment at keyway Yu Chi center on pair of meshing herringbone gear shaft.The present invention can realize simple to operate, without special inspecting equipment, engagement benchmark is converted to machining benchmark, eliminates the impact of every error, effectively ensures the accuracy of alignment at keyway Yu Chi center on pair of meshing herringbone gear shaft.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The flow chart of the processing method of keyway on the pair of meshing double helical tooth gear shaft that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 is placed on the structural representation on equal-height padding iron for the pair of meshing double helical tooth gear shaft that the embodiment of the present invention provides;
Fig. 3 is that A in Fig. 2 is to view.
Wherein, 1 is herringbone gear axle, and 2 is herringbone gear axle, and 3 is equal-height padding iron, and 4 is tighting device for support, and 5 is banded lifting rope, and 6 is parallel block, and 7 is keyway.
Detailed description of the invention
The invention discloses the processing method of keyway on a kind of pair of meshing double helical tooth gear shaft, not need special inspecting equipment, ensured the accuracy of alignment at keyway Yu Chi center on herringbone gear axle.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-Fig. 3, the flow chart of the processing method of keyway on the pair of meshing double helical tooth gear shaft that Fig. 1 provides for the embodiment of the present invention; Fig. 2 is placed on the structural representation on equal-height padding iron for the pair of meshing double helical tooth gear shaft that the embodiment of the present invention provides; Fig. 3 is that A in Fig. 2 is to view.
The processing method of keyway on the pair of meshing double helical tooth gear shaft that the embodiment of the present invention provides, comprising:
Step S 11: gear is placed;
On platform, place two equal-height padding irons, double helical tooth gear shaft 1 and double helical tooth gear shaft 2 are erected on two equal-height padding irons 3, guarantee center is contour.The length of equal-height padding iron 3 is greater than the meshed center distance of two gear shafts, to ensure that two herringbone gear axles all can be placed on equal-height padding iron 3.
Step S12: gear engagement;
Sheathed two isometric banded lifting ropes 5 on two double helical tooth gear shafts, make after two double helical tooth gear shaft engagements, tighten to keep engagement with tighting device for support 4, this tighting device for support 4 can be common rope, as long as can keep the centre-to-centre spacing of two double helical tooth gear shafts after locking, to ensure engagement.
Step S13: gear adjustment;
Adjust up and down banded lifting rope 5, make the center of two double helical tooth gear shafts contour with the center of the engaging tooth in engagement, using this engaging tooth as datum tooth, datum tooth is as the benchmark of follow-up two double helical tooth gear shaft assembling engagements.Ensure the symmetrical center line of an engaging tooth in engagement and being centered close on same vertical height of double helical tooth gear shaft.
Step S14: centering;
At the axle head installing parallel block 7 of two double helical tooth gear shafts, taking platform as benchmark, after the upper plane with plane measuring device levelling two parallel blocks 7, parallel block 7 is fixed tightly on double helical tooth gear shaft respectively, unclamps tighting device for support 4, decompose two double helical tooth gear shafts.After the upper plane of next levelling parallel block 7, can ensure that equally the center of two double helical tooth gear shafts is contour with the center of the engaging tooth in engagement.
Step S15: keyway milling;
The parallel block 7 of centering axle head, by normal keyseat technique keyseat finished product.
The processing method of keyway on pair of meshing double helical tooth gear shaft provided by the invention, utilize the characteristic of the rear automatic centering of double helical tooth engagement, centering benchmark by two double helical tooth gear shafts under engagement is transformed on the parallel block of axle head, respectively as the centering benchmark of keyseat, make reference for assembling and machining benchmark unified, eliminate the impact of every error, effectively ensure the accuracy of alignment at keyway Yu Chi center on pair of meshing herringbone gear shaft.The present invention can realize simple to operate, without special inspecting equipment, engagement benchmark is converted to machining benchmark, eliminates the impact of every error, effectively ensures the accuracy of alignment at keyway Yu Chi center on pair of meshing herringbone gear shaft.
Further, step S11 is specially: two equal-height padding irons 3 are placed on platform, then the axle journal of two double helical tooth gear shafts are erected on two equal-height padding irons.
In the present invention's one specific embodiment, if the axle journal cylindrical of two double helical tooth gear shafts is not etc., between the less double helical tooth gear shaft of axle journal outside diameter and equal-height padding iron 3, place the parallels of (Da-Db)/2 thickness, wherein Da is the axle journal diameter of the double helical tooth gear shaft that diameter is larger, Db is the axle journal diameter of the double helical tooth gear shaft that diameter is less, can ensure that like this center of two double helical tooth gear shafts is contour.
In the present invention's one specific embodiment, step S14 is specially: at the axle head installing parallel block 7 of two double helical tooth gear shafts, taking platform as benchmark, use after the upper plane of plane measuring device levelling two parallel blocks 7 respectively, parallel block 7 is fixed tightly on double helical tooth gear shaft, unclamps tighting device for support 4.The present invention keeps two double helical tooth gear shafts motionless under engagement, adjusts parallel block parallel with platform, and centering benchmark is transformed on axle head parallel block.
Further, before step S11, also comprise step: the axle journal of platform, equal-height padding iron and double helical tooth gear shaft is cleaned out, to increase precision.
In the present invention's one specific embodiment, step S13 is specially: sheathed two isometric banded lifting ropes 5 on two double helical tooth gear shafts, adjust up and down banded lifting rope 5, adjust the center of two double helical tooth gear shafts contour with the center of the engaging tooth in engagement, using this engaging tooth as datum tooth, and carry out mark by scriber on datum tooth.
In the present invention's one specific embodiment, described plane measuring device is dial gauge, dial framework and cushion block, described parallel block by screws tighten on double helical tooth gear shaft.The dial framework of dial gauge is sitting on cushion block, on platform, drags plane on cushion block centering parallel block.
In the present invention's one specific embodiment, the outside circle of two double helical tooth gear shafts is φ 860mm, and two ends axle journal is φ 560mm; The long 4790mm of double helical tooth gear shaft 1, the keyway center deviation ≯ 0.15mm that overlaps with geared end teeth groove center line; The long 4030mm of double helical tooth gear shaft 2, the keyway center deviation ≯ 0.15mm that overlaps with geared end tooth top center line.
Platform is the platform of 5 meters × 5 meters, and equal-height padding iron is the parallels of long 1500mm × wide 400mm × high 500mm.
In sum, the present invention is owing to having adopted reference for assembling and machining benchmark uniform principles, eliminate the impact of every errors such as the double helical tooth error of centralization, facewidth length difference, shaft shoulder position length difference in size, effectively ensure the accuracy of alignment at keyway Yu Chi center on pair of meshing herringbone gear shaft, and simple to operate, without special inspecting equipment.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. a processing method for keyway on pair of meshing double helical tooth gear shaft, is characterized in that, comprises step:
1) on platform, place two equal-height padding irons, two double helical tooth gear shafts are erected on two equal-height padding irons;
2) sheathed two isometric banded lifting ropes on two double helical tooth gear shafts, make after the engagement of two double helical tooth gear shafts, tighten to keep engagement with tighting device for support;
3) adjust up and down banded lifting rope, make the center of two double helical tooth gear shafts contour with the center of the engaging tooth in engagement, using this engaging tooth as datum tooth;
4) respectively at the axle head installing parallel block of two double helical tooth gear shafts, taking platform as benchmark, after the upper plane with plane measuring device levelling two parallel blocks, parallel block is fixed tightly on double helical tooth gear shaft, unclamps tighting device for support;
5) parallel block of centering axle head, by normal keyseat technique keyseat finished product.
2. the processing method of keyway on pair of meshing double helical tooth gear shaft as claimed in claim 1, it is characterized in that, described step 1) is specially: two equal-height padding irons are placed on platform, then the axle journal of two double helical tooth gear shafts are erected on two equal-height padding irons.
3. the processing method of keyway on pair of meshing double helical tooth gear shaft as claimed in claim 2, it is characterized in that, if the axle journal cylindrical of two double helical tooth gear shafts is not etc., between the less double helical tooth gear shaft of axle journal outside diameter and equal-height padding iron, place the parallels of (Da-Db)/2 thickness, wherein Da is the axle journal diameter of the double helical tooth gear shaft that diameter is larger, and Db is the axle journal diameter of the double helical tooth gear shaft that diameter is less.
4. the processing method of keyway on pair of meshing double helical tooth gear shaft as claimed in claim 1, is characterized in that, also comprises step: the axle journal of platform, equal-height padding iron and double helical tooth gear shaft is cleaned out before step 1).
5. the processing method of keyway on pair of meshing double helical tooth gear shaft as claimed in claim 1, it is characterized in that, described step 3) is specially: sheathed two isometric banded lifting ropes on two double helical tooth gear shafts, adjust up and down banded lifting rope, adjust the center of two double helical tooth gear shafts contour with the center of the engaging tooth in engagement, using this engaging tooth as datum tooth, and carry out mark by scriber on datum tooth.
6. the processing method of keyway on the pair of meshing double helical tooth gear shaft as described in claim 1-5 any one, is characterized in that, described plane measuring device is dial gauge, dial framework and cushion block.
7. the processing method of keyway on the pair of meshing double helical tooth gear shaft as described in claim 1-5 any one, is characterized in that, described parallel block by screws tighten on double helical tooth gear shaft.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546579.2A CN102962503B (en) | 2012-12-17 | 2012-12-17 | Machining method for key grooves in pair of gear shafts with engaged herringbone teeth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546579.2A CN102962503B (en) | 2012-12-17 | 2012-12-17 | Machining method for key grooves in pair of gear shafts with engaged herringbone teeth |
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| CN102962503A CN102962503A (en) | 2013-03-13 |
| CN102962503B true CN102962503B (en) | 2014-06-25 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104801750B (en) * | 2015-04-29 | 2017-05-31 | 重庆齿轮箱有限责任公司 | A kind of processing method of gear shaft key groove |
| CN105364419B (en) * | 2015-12-10 | 2017-08-11 | 常州天山重工机械有限公司 | A kind of processing method for being used for helical gear to keyway |
| CN105921800B (en) * | 2016-06-30 | 2018-02-02 | 上海振华重工集团(南通)传动机械有限公司 | A kind of herringbone helical teeth keyway processing technology |
| CN107617794B (en) * | 2017-11-01 | 2019-03-19 | 重庆齿轮箱有限责任公司 | A kind of double helical tooth annular gear processing method |
| CN109604743B (en) * | 2019-01-22 | 2020-04-21 | 固安泰捷龙机电设备有限公司 | Gear shaft processing location frock |
Citations (3)
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| US4778314A (en) * | 1986-07-23 | 1988-10-18 | Klein, Schanzlin & Becker Aktiengesellschaft | Method of machining grooves in shafts and like workpieces |
| CN101413576B (en) * | 2008-11-14 | 2010-09-15 | 南车戚墅堰机车车辆工艺研究所有限公司 | Method for machining and assembling chevron gear |
| CN202185749U (en) * | 2011-07-18 | 2012-04-11 | 中国重汽集团大同齿轮有限公司 | Clamp special for keyseat groove of shaft parts |
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2012
- 2012-12-17 CN CN201210546579.2A patent/CN102962503B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4778314A (en) * | 1986-07-23 | 1988-10-18 | Klein, Schanzlin & Becker Aktiengesellschaft | Method of machining grooves in shafts and like workpieces |
| CN101413576B (en) * | 2008-11-14 | 2010-09-15 | 南车戚墅堰机车车辆工艺研究所有限公司 | Method for machining and assembling chevron gear |
| CN202185749U (en) * | 2011-07-18 | 2012-04-11 | 中国重汽集团大同齿轮有限公司 | Clamp special for keyseat groove of shaft parts |
Non-Patent Citations (1)
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| 王浩等.粗长轴上对称键槽的铣削.《金属加工（冷加工）》.2011,(第23期),33. * |
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