CN202968640U - Plug for preventing thermal deformation of internal spline gear - Google Patents
Plug for preventing thermal deformation of internal spline gear Download PDFInfo
- Publication number
- CN202968640U CN202968640U CN 201220664148 CN201220664148U CN202968640U CN 202968640 U CN202968640 U CN 202968640U CN 201220664148 CN201220664148 CN 201220664148 CN 201220664148 U CN201220664148 U CN 201220664148U CN 202968640 U CN202968640 U CN 202968640U
- Authority
- CN
- China
- Prior art keywords
- plug
- internal spline
- gear
- spline gear
- small end
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a plug for preventing the thermal deformation of an internal spline gear. The plug is matched with the internal spline hole of an internal spline gear and is in transitional fit with the internal spline hole. The plug is mainly used for the heat treatment of the asymmetric involute internal spline gear to prevent thermal deformation. The plug is arranged in the hole on the small end surface of the asymmetric involute internal spline gear. In the quenching process, the plug expands slightly, the internal spline on the small end surface of the asymmetric internal spline gear contacts, thus the inconsistent contraction and deformation of the hole of the internal spline gear is controlled effectively, the qualification rate of the product is improved greatly, the scrappage of the product is reduced, and the precision level of the internal spline gear is enhanced.
Description
Technical field
The utility model belongs to gear machining technology field, particularly a kind of plug of anti-inner spline gear thermal distortion.
Background technology
The involute internal spline gear prior heat treatment process is that rough turn gear is made involute inner spline (the internal spline size control is by technical requirements) through the involute spline broach broaching, send again thermal treatment to make conventional carburizing, quench treatment after finish turning, gear hobbing, shaving, remake sorting, the detection of internal spline.
Inner spline gear manufacturing processed in automobile gearbox gear all will be carried out carburizing quenching process and be processed, and that involute internal spline gear often causes because the endoporus shrinkage strain is overproof is defective, run into particularly that material composition fluctuation is bigger than normal, the pre-treatment metallographic structure is bad, when contour structures is asymmetric, the distortion of thermal treatment inner spline gear is overproof more obvious.And that heat treatment deformation trend is the small end face internal splined hole is larger than the shrinkage strain of large end face internal splined hole, is difficult to control in existing quenching technology is processed, and causes internal spline to detect defective, and the accuracy of gear reduces, product rejection, and cost increases.
The utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of and can effectively control the inconsistent phenomenon of internal spline perforation shrinkage strain, qualification rate is improved significantly, reduced scrapping of product, improve again the plug of accuracy of gear grade simultaneously.
The technical solution of the utility model is achieved in that a kind of plug of anti-inner spline gear thermal distortion, it is characterized in that: the internal splined hole of described plug and inside spline wheel gear coupling and transition fit with it.
The plug of anti-inner spline gear thermal distortion described in the utility model, its described plug are placed in the small end face of asymmetric internal splined hole gear, the small end face salient length coupling of the length of described plug and asymmetric internal splined hole gear.
The plug of anti-inner spline gear thermal distortion described in the utility model, it is when thermal treatment, and the outer face of the plug in the described small end face that is placed in asymmetric internal splined hole gear flushes with the small end face of asymmetric internal splined hole gear.
The plug of anti-inner spline gear thermal distortion described in the utility model, its described plug adopts soft steel to make.
The utility model is mainly used in the distortion-free thermal treatment of the asymmetric involute internal spline gear wheel of contour structures, in the small end face that plug is placed in asymmetric internal splined hole gear, plug is microdilatancy trend in quenching process, and the small end face internal spline of tooth is tendencies toward shrinkage, thereby stop the contraction of internal spline, effectively control the inconsistent phenomenon of internal spline perforation shrinkage strain, qualification rate is improved significantly, reduce scrapping of product, improved again the class of precision of gear simultaneously.
Owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, by the setting of plug in the internal spline perforation, can extenuate the speed of cooling of internal spline in quenching process;
2, by the setting of plug in the internal spline perforation, plug is microdilatancy trend in quenching process, and the small end face internal spline of tooth is tendencies toward shrinkage, thereby stop the contraction of internal spline, even it is bigger than normal that internal spline shrinks, the plug diameter dimension has also been placed restrictions on the maximum collapse amount of internal splined hole, reaches the controllability that internal spline shrinks;
3, the overall length of plug does not take to stop up fully the mode of internal spline, thereby has guaranteed that after heat treatment hardness and the metallographic structure of tooth internal spline reaches technical requirements;
4, simple in structure, with low cost, the processing ease of the utility model, economical and practical, bring notable results.
Description of drawings
Fig. 1 is the structural representation of involute internal spline gear wheel.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is use view of the present utility model.
Mark in figure: 1 is plug, and 2 is internal splined hole, and 3 is asymmetric internal splined hole gear.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Fig. 1,2 and 3, a kind of plug of anti-inner spline gear thermal distortion, described plug 1 and internal splined hole 2 couplings of inside spline wheel gear and transition fit with it, described plug 1 is placed in the small end face of asymmetric internal splined hole gear 3, the small end face salient length coupling of the length of described plug 1 and asymmetric internal splined hole gear 3, when thermal treatment, the outer face of the plug 1 in the described small end face that is placed in asymmetric internal splined hole gear 3 flushes with the small end face of asymmetric internal splined hole gear 3.
Wherein, described plug 1 adopts soft steel to make.
The preparation work of inner spline gear before the thermal treatment shove charge, that the plug that processes is filled in the small end face of internal splined hole, also small end face is downward in order to keep flat for the heat treatment clamping mode, just can carry out normal part carburizing, quenching, tempering heat treatment, unloads lower end cap after handling.
Adopt the method for this plug setting to reduce or prevent the thermal distortion of the asymmetric internal splined hole gear of contour structures, it is a kind of supplementary mode of taking under normal implementation status in making the hot and cold technique whole process of inside spline wheel gear, just increased before thermal treatment and made together the plug aided process, wherein plug is reusable in anti-inner spline gear heat treatment process.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. the plug of an anti-inner spline gear thermal distortion is characterized in that: described plug (1) and internal splined hole (2) coupling of inside spline wheel gear and transition fit with it.
2. the plug of anti-inner spline gear thermal distortion according to claim 1, it is characterized in that: described plug (1) is placed in the small end face of asymmetric internal splined hole gear (3), the small end face salient length coupling of the length of described plug (1) and asymmetric internal splined hole gear (3).
3. the plug of anti-inner spline gear thermal distortion according to claim 2, it is characterized in that: when thermal treatment, the outer face of the plug (1) in the described small end face that is placed in asymmetric internal splined hole gear (3) flushes with the small end face of asymmetric internal splined hole gear (3).
4. the plug of according to claim 1,2 or 3 described anti-inner spline gear thermal distortions, is characterized in that: the making of described plug (1) employing soft steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664148 CN202968640U (en) | 2012-12-06 | 2012-12-06 | Plug for preventing thermal deformation of internal spline gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664148 CN202968640U (en) | 2012-12-06 | 2012-12-06 | Plug for preventing thermal deformation of internal spline gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202968640U true CN202968640U (en) | 2013-06-05 |
Family
ID=48509740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220664148 Expired - Fee Related CN202968640U (en) | 2012-12-06 | 2012-12-06 | Plug for preventing thermal deformation of internal spline gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202968640U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107322084A (en) * | 2017-05-12 | 2017-11-07 | 中国第汽车股份有限公司 | A kind of repair method of doing over again for the internal spline product scrapped by deformation |
| US10174395B2 (en) * | 2015-10-15 | 2019-01-08 | The Boeing Company | Interference fit quench plug assembly and methods for use thereof |
| CN112605616A (en) * | 2020-12-18 | 2021-04-06 | 哈尔滨电气动力装备有限公司 | Machining process of large-scale shielding motor thrust disc |
| US11072836B2 (en) * | 2015-02-05 | 2021-07-27 | Härterei Reese Bochum Gmbh | Charging device for the heat treatment of workpieces having a hub |
| CN114962596A (en) * | 2022-07-27 | 2022-08-30 | 四川丹齿精工科技有限公司 | Gear power transmission structure with high assembly probability |
-
2012
- 2012-12-06 CN CN 201220664148 patent/CN202968640U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11072836B2 (en) * | 2015-02-05 | 2021-07-27 | Härterei Reese Bochum Gmbh | Charging device for the heat treatment of workpieces having a hub |
| US10174395B2 (en) * | 2015-10-15 | 2019-01-08 | The Boeing Company | Interference fit quench plug assembly and methods for use thereof |
| US20190106763A1 (en) * | 2015-10-15 | 2019-04-11 | The Boeing Company | Interference fit quench plug assembly and methods for use thereof |
| US10669605B2 (en) * | 2015-10-15 | 2020-06-02 | The Boeing Company | Interference fit quench plug assembly and methods for use thereof |
| CN107322084A (en) * | 2017-05-12 | 2017-11-07 | 中国第汽车股份有限公司 | A kind of repair method of doing over again for the internal spline product scrapped by deformation |
| CN112605616A (en) * | 2020-12-18 | 2021-04-06 | 哈尔滨电气动力装备有限公司 | Machining process of large-scale shielding motor thrust disc |
| CN112605616B (en) * | 2020-12-18 | 2021-10-26 | 哈尔滨电气动力装备有限公司 | Machining process of large-scale shielding motor thrust disc |
| CN114962596A (en) * | 2022-07-27 | 2022-08-30 | 四川丹齿精工科技有限公司 | Gear power transmission structure with high assembly probability |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202968640U (en) | Plug for preventing thermal deformation of internal spline gear | |
| CN103612079A (en) | Method for forming splined connection type dual gears | |
| CN105127681A (en) | Cold extrusion molding technology for rotor of automobile brake vacuum booster pump | |
| CN101439387A (en) | Spiral angle gear accurate hot-extrusion stamp forging technique and process | |
| CN103785706A (en) | Manufacturing method of alloy steel section tubes | |
| CN105414906B (en) | High intensity, high-precision hub spindle processing method | |
| CN204075370U (en) | Internal diameter centering spline broach | |
| CN105215252A (en) | The forming technology of the mould of preform 45 ° of skew T jumping-up parts, method and 45 ° of skew Ts | |
| CN104801929A (en) | Valve cap manufacturing technology | |
| CN104259754B (en) | Impeller pull rod machining method | |
| CN204625713U (en) | The anti-taper deformation frock of a kind of internal spline thin-wall gear thermal treatment | |
| CN202673973U (en) | Reverse gear shaft internal thread and automobile transmission | |
| CN103586648B (en) | A kind of processing method of rectangular spline | |
| CN206065313U (en) | A kind of one or two grades of shift fork thermal recalibration moulds | |
| CN102601277A (en) | Automobile gearbox intermediate gear shaft blank three-time wedging mould and rolling method thereof | |
| CN206215754U (en) | Hard high torque cross recess drift sub-assembly | |
| CN205324592U (en) | Five or six grades of shift fork hot straightening dies | |
| CN106925948A (en) | A kind of taper valve core manufacture method | |
| CN104805261A (en) | Destressing method of high-precision valve body | |
| CN204852311U (en) | Car shift fork that reverses gear | |
| CN205436972U (en) | A second gear shift fork finish forging mould | |
| CN205025521U (en) | Engine valve of different neck structures | |
| CN205056670U (en) | Dish round steel tensioning device | |
| CN202520802U (en) | Spiral bevel gear shaft | |
| CN106890895A (en) | A kind of one or two grades of shift fork thermal recalibration moulds |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20161206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |