CN103350260A - Profile modification method adopting gear shaving cutter - Google Patents
Profile modification method adopting gear shaving cutter Download PDFInfo
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- CN103350260A CN103350260A CN 201310266118 CN201310266118A CN103350260A CN 103350260 A CN103350260 A CN 103350260A CN 201310266118 CN201310266118 CN 201310266118 CN 201310266118 A CN201310266118 A CN 201310266118A CN 103350260 A CN103350260 A CN 103350260A
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- shaving
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Abstract
The invention provides a profile modification method adopting a gear shaving cutter. The method comprises two steps as follows: (1) tooth profile modification adopts gear shaving cutter modification, that is, a pitch circle part is modified to be recessed by the gear shaving cutter, so that a tooth profile middle concave defect caused by a gear shaving process is made up; and (2) during axial modification, elastic deformation and heat treatment distortion conditions of gears are mainly considered, gears are contacted in an overall length direction according to ideal axial engagement length of a pair of gears, and shaving teeth are shaved into crowned teeth in order to realize basically uniform loading in a tooth width direction and improve the bearing capacity of the gears. Through profile modification of the gear shaving cutter, the middle concave problem of the shaving tooth profile is solved, the engagement performance of the gears are improved, and the service lives of the gears are prolonged.
Description
Technical field
The present invention relates to the gear manufacturing, particularly relate to a kind of Shaving Dressing method.
Background technology
Shaving Process is gear shaver and formed a pair of engagement process that adds wrong axis helical teeth wheel set by the shaving wheel, in Shaving Process, razor and be constant by the radial pressure that shaving is taken turns two between centers, the compressive load per unit area that acts on the pair of meshing flank of tooth is more much bigger than acting on two pairs of unit ares on the mesh tooth face, cutting force is also much bigger, near special relative sliding velocity gear shaver and pitch circle is minimum, the time that cutting deformation time and cutting force transmit is longer, the metal that cuts is more, form the shaving flank concave, in addition tooth top meeting in heat treatment process " top of collapsing ", flank of tooth two ends also can " lower hang ", like this can be so that profile of tooth after the heat treatment, teeth directional cydariform amount increases.
Summary of the invention
For addressing the above problem, the invention provides a kind of Shaving Dressing method, comprise following two steps: 1) Shaving Dressing is adopted in the correction of the flank shape of profile of tooth, and Shaving Dressing is partly repaiied the gear shaver pitch circle recessed exactly, to remedy the flank concave defective of bringing because of shaving technique; 2) axial modification is mainly considered strain and the heat treatment deformation situation of gear, and the desirable teeth directional length of action of a pair of gear contacts in the total length direction, in order to realize the basic all stands under load of facewidth direction, improves gear capacity, and shaving is shaved into barreled tooth flank.
Beneficial effect of the present invention is: by Shaving Dressing, solved the problem of shaving flank concave, improved the meshing performance of gear, the service life of having improved gear.
Description of drawings
Fig. 1 shaving flank concave diagram;
Fig. 2 template for modification schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further specified.
Adopt a kind of Shaving Dressing method of the present invention that following gear is carried out correction of the flank shape:
Basic fundamental parameter and the shape of known gears
Modulus: the m=3.5 number of teeth: z=38
Pressure angle: the α=20 ° facewidth: B=22
Outer garden: D=Ф 140.56 endoporus: d=Ф 750 ,+0.03
The accuracy of gear: 8GB10095-2001
Material: SAE8620
Heat treatment: S0.5～C59
Geartooth correction requires:
Profile of tooth cydariform amount: 0.005～0.015
Teeth directional cydariform amount: 0.010～0.022
Tooth top tip relief: 0.3 * 45 °.
The Shaving Process technical process
Forging → normalizing → rough turn → finish turning → gear hobbing → shaving → carburizing and quenching → mill endoporus.
Use the profile of tooth behind traditional gear shaver shaving often to produce as shown in Figure 1 concave 0.01～0.03mm near pitch circle, this is the main cause that causes gear noise, so adopt following two steps to carry out correction of the flank shape:
1) correction of the flank shape of profile of tooth
Adopt Shaving Dressing, Shaving Dressing is exactly partly to repair the gear shaver pitch circle recessed consciously, to remedy the flank concave defective of bringing because of shaving technique, utilize template for modification as shown in Figure 2 emery wheel to be repaired, make the shaving cutter tooth profile behind the sharpening form concave, the concave amount is controlled at about 0.015;
2) axial modification
Axial modification for shaving, main strain and the heat treatment deformation situation of considering gear, the desirable teeth directional length of action of a pair of gear contacts in the total length direction, in order to realize the basic all stands under load of facewidth direction, improve gear capacity, usually shaving is shaved into barreled tooth flank, and owing to the characteristics of two ends facewidth direction in the heat treatment process " the lower extension ", teeth directional cydariform amount is controlled between 0.010～0.015 during shaving in addition.Teeth directional cydariform amount just reaches the requirement of teeth directional cydariform amount (0.010～0.022) fully after the heat treatment like this.
Claims (1)
1. Shaving Dressing method is characterized in that comprising following two steps: 1) Shaving Dressing is adopted in the correction of the flank shape of profile of tooth, and Shaving Dressing is partly repaiied the gear shaver pitch circle recessed exactly, to remedy the flank concave defective of bringing because of shaving technique; 2) axial modification is mainly considered strain and the heat treatment deformation situation of gear, and the desirable teeth directional length of action of a pair of gear contacts in the total length direction, in order to realize the basic all stands under load of facewidth direction, improves gear capacity, and shaving is shaved into barreled tooth flank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310266118 CN103350260A (en) | 2013-06-28 | 2013-06-28 | Profile modification method adopting gear shaving cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310266118 CN103350260A (en) | 2013-06-28 | 2013-06-28 | Profile modification method adopting gear shaving cutter |
Publications (1)
| Publication Number | Publication Date |
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| CN103350260A true CN103350260A (en) | 2013-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310266118 Pending CN103350260A (en) | 2013-06-28 | 2013-06-28 | Profile modification method adopting gear shaving cutter |
Country Status (1)
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| CN (1) | CN103350260A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611080A (en) * | 2016-11-10 | 2017-05-03 | 西安建筑科技大学 | Shaving cutter design method based on analysis on meshing contact property of shaving gears |
| CN106624684A (en) * | 2016-12-06 | 2017-05-10 | 沈阳精力传动设备有限公司 | Gear shaving machining tooth form modification method |
| CN106815399A (en) * | 2016-12-12 | 2017-06-09 | 西安建筑科技大学 | Non- equilateral shaving cutter tooth profile method for designing based on negative addendum modification balance shaving tooth |
| CN107378646A (en) * | 2017-06-15 | 2017-11-24 | 西安法士特汽车传动有限公司 | A kind of Shaving Dressing method based on involute key point |
| CN108856910A (en) * | 2018-08-21 | 2018-11-23 | 中车大连机车车辆有限公司 | A kind of method and device of polishing gear edge by use |
-
2013
- 2013-06-28 CN CN 201310266118 patent/CN103350260A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611080A (en) * | 2016-11-10 | 2017-05-03 | 西安建筑科技大学 | Shaving cutter design method based on analysis on meshing contact property of shaving gears |
| CN106624684A (en) * | 2016-12-06 | 2017-05-10 | 沈阳精力传动设备有限公司 | Gear shaving machining tooth form modification method |
| CN106815399A (en) * | 2016-12-12 | 2017-06-09 | 西安建筑科技大学 | Non- equilateral shaving cutter tooth profile method for designing based on negative addendum modification balance shaving tooth |
| CN106815399B (en) * | 2016-12-12 | 2020-04-03 | 西安建筑科技大学 | Non-equilateral shaving cutter tooth shape design method based on negative deflection balance shaving |
| CN107378646A (en) * | 2017-06-15 | 2017-11-24 | 西安法士特汽车传动有限公司 | A kind of Shaving Dressing method based on involute key point |
| CN108856910A (en) * | 2018-08-21 | 2018-11-23 | 中车大连机车车辆有限公司 | A kind of method and device of polishing gear edge by use |
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Application publication date: 20131016 |