CN204714868U - Prevent the frock being with inside spline wheel gear heat treatment deformation - Google Patents
Prevent the frock being with inside spline wheel gear heat treatment deformation Download PDFInfo
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- CN204714868U CN204714868U CN201520257038.7U CN201520257038U CN204714868U CN 204714868 U CN204714868 U CN 204714868U CN 201520257038 U CN201520257038 U CN 201520257038U CN 204714868 U CN204714868 U CN 204714868U
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- base frame
- treatment deformation
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Abstract
The utility model relates to a kind of frock preventing from being with inside spline wheel gear heat treatment deformation, comprise base frame, stem stem, base frame is the reticulated structure synthesized by multiple hexagonal groups, on the node of net, stem stem is arranged in dislocation, uniform three small stairs around stem stem, and have an aperture at the center of stem stem, arrange four macropores in the surrounding of base frame, in macropore, insert fixing inserted link fix this frock.The utility model both can control the heat treatment deformation of internal splined hole, can improve again the distortion of gear tooth profile of tooth, teeth directional and accumulative pitch error, quality product is guaranteed.
Description
Technical field
The utility model belongs to gear machining technology field, particularly relates to a kind of frock preventing inside spline wheel gear thermal distortion.
Background technology
Inside spline wheel gear in automobile gearbox all will carry out carburizing and quenching in the course of processing, because inside spline wheel gear two header structure is asymmetric, after causing carburizing and quenching, endoporus produces tapering or becomes ellipticity distortion, and the distortion of teeth portion profile of tooth, teeth directional, cumulative pitch is large, cause internal spline to detect defective, the accuracy of gear reduces.Chinese patent literature CN202968640U discloses a kind of plug of anti-inside spline wheel gear thermal distortion, and plug is placed in the light section hole of asymmetric internal splined hole gear, controls the shrinkage strain of small end internal spline.When taking which to load and unload stove, inconvenient operation, time-consuming, and not mentioned teeth portion profile of tooth, teeth directional and the cumulative pitch of how improving distorts.Chinese patent literature CN104328248A discloses a kind of quenching method preventing large footpath, inside spline wheel gear splined hole two ends size inconsistent, and inside spline wheel gear is sleeved on quenching mandrel, and quenching mandrel is through on same support bar in groups.The method also reduces the working efficiency of handling stove, does not mention improving the distortion of teeth portion profile of tooth, teeth directional and cumulative pitch." metal heat treatmet " periodical the 34th volume the 10th phase has delivered " heat treatment technology improvement of variator follower gear ", the document points out that the charging mode of Three-points supporting type can improve the distortion of the profile of tooth of gear tooth, teeth directional and cumulative pitch, but does not point out the distortion how improving internal splined hole.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defect, provides a kind of frock preventing from being with inside spline wheel gear heat treatment deformation, both can control the heat treatment deformation of internal splined hole, can improve again the distortion of gear tooth profile of tooth, teeth directional and accumulative pitch error.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: a kind of frock preventing band inside spline wheel gear heat treatment deformation, comprise base frame 1, stem stem 2, base frame 1 is the reticulated structure synthesized by multiple hexagonal groups, on the node of net, stem stem 2 is arranged in dislocation, uniform three small stairs 3 around stem stem 2, and have an aperture 4 at the center of stem stem 2.
Preferably, four macropores 5 are arranged in the surrounding of base frame 1.
Application the utility model frock loading/unloading products is simple and convenient, and the heat treatment deformation of product internal splined hole can be effectively controlled, and internal spline tapering meets process specifications within being reduced to 0.03mm by original 0.06mm; The distortion of the teeth portion profile of tooth of product, teeth directional and accumulative pitch error is improved, and product disqualification rate drops to less than 1% by 25%.
Accompanying drawing explanation
Fig. 1 is structure of the present utility model composition schematic diagram.
In figure: 1-base frame, 2-stem stem, 3-small stair, 4-aperture, 5-macropore.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As shown in Figure 1, prevent the frock being with inside spline wheel gear heat treatment deformation, formed by casting heat resistant steel, comprise base frame 1 and stem stem 2, wherein, base frame 1 is the reticulated structure synthesized by multiple hexagonal groups, and on the node of net, stem stem 2 is arranged in dislocation, uniform three small stairs 3 around stem stem 2, and at center drill aperture 4 of stem stem 2.The diameter of stem stem 2 and the internal splined hole of gear match, and the plane of 3 small stairs 3 is all in same level, and aperture 4 can shorten the time of oil dripping and cleaning after parts quenching.
For ease of fixing this frock, arranging four macropores 5 in the surrounding of base frame 1, fixing inserted link can be inserted fix in macropore 5.
Fixing inserted link, when shove charge, first inserts in macropore 5 and fixes this frock by product, and after the internal splined hole of product is passed stem stem 2, then enter stove quenching, three small stairs 3 around stem stem 2 play support product.
The utility model is not limited to above-mentioned embodiment, in the ken that art those of ordinary skill possesses, can also make various change under the prerequisite not departing from the utility model aim.
Claims (2)
1. one kind prevents the frock being with inside spline wheel gear heat treatment deformation, comprise base frame (1), stem stem (2), it is characterized in that: described base frame (1) is the reticulated structure synthesized by multiple hexagonal groups, on the node of net, stem stem (2) is arranged in dislocation, uniform three small stairs (3) around described stem stem (2), and have an aperture (4) at the center of stem stem (2).
2. the frock preventing band inside spline wheel gear heat treatment deformation according to claim 1, is characterized in that: arrange four macropores (5) in the surrounding of described base frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520257038.7U CN204714868U (en) | 2015-04-27 | 2015-04-27 | Prevent the frock being with inside spline wheel gear heat treatment deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520257038.7U CN204714868U (en) | 2015-04-27 | 2015-04-27 | Prevent the frock being with inside spline wheel gear heat treatment deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204714868U true CN204714868U (en) | 2015-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520257038.7U Active CN204714868U (en) | 2015-04-27 | 2015-04-27 | Prevent the frock being with inside spline wheel gear heat treatment deformation |
Country Status (1)
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| CN (1) | CN204714868U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107937922A (en) * | 2017-12-22 | 2018-04-20 | 沈阳透平机械股份有限公司 | A kind of impervious carbon distorsion during quenching control method of large scale double helical gear |
| CN113106244A (en) * | 2021-04-08 | 2021-07-13 | 泸州高新中航传动转向系统有限公司 | Heat treatment control method for internal spline product |
-
2015
- 2015-04-27 CN CN201520257038.7U patent/CN204714868U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107937922A (en) * | 2017-12-22 | 2018-04-20 | 沈阳透平机械股份有限公司 | A kind of impervious carbon distorsion during quenching control method of large scale double helical gear |
| CN113106244A (en) * | 2021-04-08 | 2021-07-13 | 泸州高新中航传动转向系统有限公司 | Heat treatment control method for internal spline product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191101 Address after: 412000 No. 119 Xinhua West Road, lotus pond area, Hunan, Zhuzhou Patentee after: Zhuzhou Gearings Co., Ltd. Address before: 412000, Zhuzhou, Hunan province Tianyuan District Pearl River North Road, rain Industrial Park Patentee before: Zhuzhou Accurate Drive Train Co., Ltd. |