CN203257832U - Bevel structure with body and sleeve in interference fit - Google Patents
Bevel structure with body and sleeve in interference fit Download PDFInfo
- Publication number
- CN203257832U CN203257832U CN 201320251758 CN201320251758U CN203257832U CN 203257832 U CN203257832 U CN 203257832U CN 201320251758 CN201320251758 CN 201320251758 CN 201320251758 U CN201320251758 U CN 201320251758U CN 203257832 U CN203257832 U CN 203257832U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- interference fit
- bevel structure
- cover
- utility
- 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 - Lifetime
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses a bevel structure with a body and a sleeve in interference fit. The bevel structure comprises the body and the sleeve, wherein the body and the sleeve are connected in an interference fit mode. The lower portion of the sleeve gradually shrinks towards the axis of the sleeve to form a bevel structure body. The diameter of the lower end face of the sleeve is smaller than the diameter of the upper end face of the sleeve. The end angle at the upper end of an inner bore of the body is of an inverted circular arc structure. According to the bevel structure with the body and the sleeve in interference fit, the bevel structure body of the sleeve is matched with the inverted circular arc structure of the body to form a guiding structure so that the interference fitting of the body and the sleeve can have a high automatic center finding property; moreover, in the process that the body and the sleeve gradually form the interference fit, guiding positions of the body and the sleeve barely have corner angles, therefore, the situations that the interference fit process is smooth and pressure assembling force is gradually increased are guaranteed, the probability that the body and the sleeve are strained in the process of press fitting the body and the sleeve is greatly lowered, and the requirement for the air tightness of a railway air distribution valve is improved.
Description
Technical field
The utility model relates to a kind of body cover interference fit chamfering structure.
Background technique
Existing cover adopts interference fit to be connected with body, there are corner angle in its structural design mutual guiding position in press-fiting process, cause that the interference fit process is level and smooth not, to press-fit resistance larger, and occur easily that body cover in the body casing pressure process of assembling is pulled and the tightness that affects the railway air slide valve.
The model utility content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of and have higher coaxality, and the interference connection procedure is level and smooth, press-fit the body cover interference fit chamfering structure that resistance does not have sudden change.
The technical solution of the utility model is achieved in that a kind of body cover interference fit chamfering structure, comprise the body and the cover that adopt interference fit to connect, it is characterized in that: described cover bottom is shunk the formation chamfering structure gradually to the axle center, the lower end surface diameter of described cover is rounding arc structure less than its upper-end surface diameter at the place, end angle, endoporus upper end of described body.
Body cover interference fit chamfering structure described in the utility model, the inclined-plane of its described cover bottom chamfering structure and the angle α of vertical plane are 15 °, and the height h of its chamfering structure part is 2mm, and the cambered surface radius R of the rounding arc structure division of described body is 0.5mm.
The utility model consists of guide structure by the chamfering structure of cover and the rounding arc respective outer side edges of body, make the interference of body cover be connected with the higher central characteristics of suffering from one's own actions, and body is enclosed within and progresses in the interference fit process, the guiding position does not almost have corner angle to exist mutually, guaranteed that the interference fit process is level and smooth, pressure assembling force is cumulative, and the probability that the body cover is pulled in the body casing pressure process of assembling, the tightness requirement that has improved the railway air slide valve have been greatly reduced.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Mark among the figure: 1 is body, and 2 are cover.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technological 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 Figure 1, a kind of body cover interference fit chamfering structure comprises the body 1 and the cover 2 that adopt interference fit to connect, and described cover 2 bottoms are shunk the formation chamfering structure gradually to the axle center, the lower end surface diameter of described cover 2 is rounding arc structure less than its upper-end surface diameter at the place, end angle, endoporus upper end of described body 1.
Wherein, the inclined-plane of described cover 2 bottom chamfering structures and the angle α of vertical plane are 15 °, and the height h of its chamfering structure part is 2mm, and the cambered surface radius R of the rounding arc structure division of described body 1 is 0.5mm.
Both guaranteed product body cover matching property adding man-hour small angle chamfering, and the existence of little chamfering has guaranteed that part is without burr, the accessory appearance quality is good, adopt the little chamfering 2X15 ° of guide structure with the R0.5 combination both to be suitable for the working condition that generic connectivity requires, also be applicable to the high body cover cooperating situation of class seal request, mainly be to improve body cover engagement process guidance quality, guarantee that the interference fit process is level and smooth, pressure assembling force is cumulative.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. a body overlaps the interference fit chamfering structure, comprise the body (1) and the cover (2) that adopt interference fit to connect, it is characterized in that: described cover (2) bottom is shunk the formation chamfering structure gradually to the axle center, the lower end surface diameter of described cover (2) is rounding arc structure less than its upper-end surface diameter at the place, end angle, endoporus upper end of described body (1).
2. body according to claim 1 overlaps the interference fit chamfering structure, it is characterized in that: the inclined-plane of described cover (2) bottom chamfering structure and the angle α of vertical plane are 15 °, the height h of its chamfering structure part is 2mm, and the cambered surface radius R of the rounding arc structure division of described body (1) is 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320251758 CN203257832U (en) | 2013-05-10 | 2013-05-10 | Bevel structure with body and sleeve in interference fit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320251758 CN203257832U (en) | 2013-05-10 | 2013-05-10 | Bevel structure with body and sleeve in interference fit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257832U true CN203257832U (en) | 2013-10-30 |
Family
ID=49470401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320251758 Expired - Lifetime CN203257832U (en) | 2013-05-10 | 2013-05-10 | Bevel structure with body and sleeve in interference fit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203257832U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533898A (en) * | 2014-12-15 | 2015-04-22 | 莆田市远泰工业科技有限公司 | Movable connecting structure |
| CN105080942A (en) * | 2015-09-28 | 2015-11-25 | 四川制动科技股份有限公司 | Method for recycling scrapped valve body with poor body-sleeve fit |
| CN107314035A (en) * | 2016-04-26 | 2017-11-03 | 上海汽车集团股份有限公司 | Bushing, spindle and automobile |
| CN108457958A (en) * | 2017-02-20 | 2018-08-28 | 波音公司 | Fillet for Interference-fit fasteners introduces |
| CN109019394A (en) * | 2018-08-29 | 2018-12-18 | 海盐佳业机械工具有限公司 | A kind of top adjustable lifting jack |
| CN110506166A (en) * | 2017-04-19 | 2019-11-26 | 喜利得股份公司 | Fixing means and fixed system |
-
2013
- 2013-05-10 CN CN 201320251758 patent/CN203257832U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533898A (en) * | 2014-12-15 | 2015-04-22 | 莆田市远泰工业科技有限公司 | Movable connecting structure |
| CN104533898B (en) * | 2014-12-15 | 2016-08-24 | 莆田市远泰工业科技有限公司 | A kind of movable connection structure |
| CN105080942A (en) * | 2015-09-28 | 2015-11-25 | 四川制动科技股份有限公司 | Method for recycling scrapped valve body with poor body-sleeve fit |
| CN107314035A (en) * | 2016-04-26 | 2017-11-03 | 上海汽车集团股份有限公司 | Bushing, spindle and automobile |
| CN108457958A (en) * | 2017-02-20 | 2018-08-28 | 波音公司 | Fillet for Interference-fit fasteners introduces |
| CN110506166A (en) * | 2017-04-19 | 2019-11-26 | 喜利得股份公司 | Fixing means and fixed system |
| CN110506166B (en) * | 2017-04-19 | 2021-01-05 | 喜利得股份公司 | Fixing method and fixing system |
| CN109019394A (en) * | 2018-08-29 | 2018-12-18 | 海盐佳业机械工具有限公司 | A kind of top adjustable lifting jack |
| CN109019394B (en) * | 2018-08-29 | 2023-11-24 | 浙江盈瑞数字科技有限公司 | Jack with adjustable top |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 620100, No. three, No. 68, Meishan science and Technology Industrial Zone, Dongpo District, Sichuan, Meishan Patentee after: MEISHAN CRRC BRAKE SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 620100, No. three, No. 68, Meishan science and Technology Industrial Zone, Dongpo District, Sichuan, Meishan Patentee before: SICHUAN BRAKE SCIENCE AND TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |
|
| CX01 | Expiry of patent term |