CN201685397U - Framework deviation-preventing pressing die for rotary shaft lip-shaped sealing rings - Google Patents
Framework deviation-preventing pressing die for rotary shaft lip-shaped sealing rings Download PDFInfo
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- CN201685397U CN201685397U CN2010201712299U CN201020171229U CN201685397U CN 201685397 U CN201685397 U CN 201685397U CN 2010201712299 U CN2010201712299 U CN 2010201712299U CN 201020171229 U CN201020171229 U CN 201020171229U CN 201685397 U CN201685397 U CN 201685397U
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Abstract
A framework deviation-preventing pressing die for rotary shaft lip-shaped sealing rings comprises a lower die plate, a low die core, an upper die core and a die sleeve. The lower die core and the die sleeve are fixedly installed on the lower die plate, the upper die core is located above the lower die core and the die sleeve and matches with the die sleeve via a positioning check mouth, the upper end surface of the upper die core is evenly provided with three to six rubber injection holes at the same periphery, and the outer cylindrical surface of the lower die core is evenly provided with containing grooves along a circumferential direction. The framework deviation-preventing pressing die can overcome shortcomings of metal framework deviation when framework oil seals are pressed, then increase processing accuracy and prolong service life of the framework oil seals.
Description
Technical field:
The utility model relates to a kind of rubber seal compacting tool set, relates in particular to axle outside framework oil seal compacting tool set.
Background technology:
Skeleton axle oil envelope is a kind of use potted component extremely widely, and it can not allow oil seepage come out with isolating between the parts that need in the drive disk assembly to lubricate and the power output shaft.
Existing axle with backbone sealing ring as shown in Figure 1, it is made up of sizing material outer ring 1, metallic framework 2, pressuring spring 3, sizing material connection shoulder 4, sizing material inner ring 5, the cross sectional shape of metallic framework 2 is anti-" 7 " shape, metallic framework 2 is embedded in sizing material outer ring 1 and is connected with sizing material in the shoulder 4, connects sizing material inner ring 5; Be provided with secondary lip seal band 6, secondary lip distortion cavity volume 7 in the upper end of sizing material inner ring 5, be provided with main lip seal band 8 and main lip distortion cavity volume 9 in the lower end of sizing material inner ring 5, pressuring spring 3 is installed on the main lip seal band 8.The axle of this structure all must use compacting tool set in process of production with backbone sealing ring, the molding of existing skeleton oil pressure is made up of lower bolster 11, lower mold core 12, upper mold core 13 and die sleeve 14, lower mold core 12 is fixedly mounted on the lower bolster 11, die sleeve 14 is fixedly mounted on the lower bolster 11, upper mold core 13 is positioned at the top of lower mold core 12 and die sleeve 14, upper mold core 13 cooperates with die sleeve 14 by positioning spigot, guarantee the correctness of lower mold core 12, upper mold core 13 and die sleeve 14 relative positions, form the oil sealing die cavity 15 identical with outside framework oil seal cross sectional shape to be pressed.
In the production pressing process, must earlier metallic framework 2 accurately be put into oil sealing die cavity 15, inject the sizing material compacting then the hole for injecting glue on upper mold core 13 16, obtain the semi-finished product of outside framework oil seal, by follow-up scarfing, prune operation get final product the finished product of outside framework oil seal.In the pressing process of outside framework oil seal, the precision of metallic framework 2 putting position in oil sealing die cavity 15 is very big to the influence of outside framework oil seal finished product accuracy, at present, usually adopt metallic framework 2 and lower mold core 12 cylindrical locate modes are determined the putting position of metallic framework 2 in oil sealing die cavity 15, because unavoidably there are mismachining tolerance man-hour in metallic framework 2 and lower mold core 12 cylindricals adding, and must leave fit clearance between metallic framework 2 and lower mold core 12 cylindricals, according to existing injecting glue mode, when monolateral pressurization is injected the hole for injecting glue 16 of sizing material on upper mold core 13, will inevitably oppress metallic framework 2 to skew on one side, if fit clearance is excessive between metallic framework 2 and lower mold core 12 cylindricals, then can change metallic framework 2 position in oil sealing die cavity 15, make metallic framework 2 in oil sealing die cavity 15, produce skew.Because the scarfing of outside framework oil seal after compacting, pruning operation all is to locate with the external diameter of oil sealing, most sizes of outside framework oil seal are all relevant with the external diameter precision of oil sealing, when metallic framework when amount of bias is excessive in oil sealing, the circularity of oil sealing cylindrical and cylindricity all can be overproof, cause the secondary lip seal band 6 of oil sealing inner ring, main lip seal band 8 and oil sealing external diameter disalignment, the outside framework oil seal that loses circle is when assembling, can cause between secondary lip seal band 6 and main lip seal band 8 and the rotating shaft magnitude of interference one side little, opposite side is big, the contact width of side seal lip that the magnitude of interference is little and axle increases, contact pressure and frictional force increase, the result causes the lip wearing and tearing because of the run-up of frictional heat and burns, and causes serious leakage.The main cause that produces above-mentioned defective is the compacting tool set unreasonable structure of outside framework oil seal, can not effectively solve the metallic framework offset problem in pressing process.
The utility model content:
The purpose of this utility model provides a kind of rotating-shaft lip-shaped seal ring framework deviation-resisting compacting mold, it can eliminate outside framework oil seal metallic framework skew defective in pressing process, thereby improve the machining accuracy of outside framework oil seal, the external diameter that can reduce outside framework oil seal significantly loses circle, external diameter and internal diameter disalignment defective.
The technical scheme that the utility model is taked is as follows:
A kind of rotating-shaft lip-shaped seal ring framework deviation-resisting compacting mold, by lower bolster, lower mold core, upper mold core and die sleeve are formed, lower mold core is fixedly mounted on the lower bolster, die sleeve is fixedly mounted on the lower bolster, upper mold core is positioned at the top of lower mold core and die sleeve, upper mold core cooperates with die sleeve by positioning spigot, guarantee lower mold core, the correctness of upper mold core and die sleeve relative position, form the oil sealing die cavity identical with outside framework oil seal cross sectional shape to be pressed, it is characterized in that, be provided with 3～6 hole for injecting glue equably on the same circumference of the upper surface of upper mold core, all hole for injecting glue and oil sealing die cavity interlink.
Further, circumferentially offer the containing groove equably in the outer cylinder surface upper edge of lower mold core.
Owing on the same circumference of the upper surface of upper mold core, be provided with 3～6 hole for injecting glue equably, all hole for injecting glue and oil sealing die cavity interlink, all hole for injecting glue all link to each other with band moulding source, when the pressure injection sizing material, just can make like this external force that metallic framework is subjected to make a concerted effort be zero, can stop the skew defective of metallic framework in pressing process; Circumferentially offer many equably in the outer cylinder surface upper edge of lower mold core and contain groove, can on the medial surface of metallic framework, coat the rubber strip of some evaginations equably, after so just reducing the outside framework oil seal compacting, cause the distortion of outside framework oil seal because of there being pressure differential inside and outside the metallic framework.This skeleton resisting compacting mold has been arranged, just can produce high accuracy lip backbone sealing ring, it is specially adapted to the sealing of rotating shaft, and long service life.
Description of drawings:
Fig. 1 is the structural representation of lip outside framework oil seal;
Fig. 2 is the structural representation of existing compacting with mould;
Fig. 3 offers position view for hole for injecting glue on the upper mold core among Fig. 2;
Fig. 4 offers position view for hole for injecting glue on the upper mold core in the utility model;
Fig. 5 is for containing the distribution schematic diagram of groove on the outer cylinder surface of lower mold core.
Among the figure, 1-sizing material outer ring; The 2-metallic framework; The 3-pressuring spring; The 4-sizing material connects shoulder; 5-sizing material inner ring; The secondary lip seal band of 6-; The secondary lip distortion of 7-cavity volume; 8-master's lip seal band; 9-master's lip distortion cavity volume; The 11-lower bolster; The 12-lower mold core; The 13-upper mold core; The 14-die sleeve; 15-oil sealing die cavity; The 16-hole for injecting glue; 17-contains groove.
The specific embodiment:
Describe the specific embodiment of the present utility model in detail below in conjunction with accompanying drawing:
A kind of rotating-shaft lip-shaped seal ring framework deviation-resisting compacting mold, by lower bolster 11, lower mold core 12, upper mold core 13 and die sleeve 14 are formed, on the lower mold core 12 fixed installation lower bolsters 11, be fixedly mounted on the lower bolster 11 to die sleeve 14 location, upper mold core 13 is positioned at the top of lower mold core 12 and die sleeve 14, upper mold core 13 cooperates with die sleeve 14 by positioning spigot, guarantee lower mold core 12, the correctness of upper mold core 13 and die sleeve 14 relative positions, form the oil sealing die cavity 15 identical with outside framework oil seal cross sectional shape to be pressed, being provided with 16, three hole for injecting glue 16 of three hole for injecting glue equably on the same circumference of the upper surface of upper mold core 13 all interlinks with oil sealing die cavity 15; Circumferentially offer the six roots of sensation in the outer cylinder surface upper edge of lower mold core 12 equably and contain groove 17.
Claims (2)
1. rotating-shaft lip-shaped seal ring framework deviation-resisting compacting mold, it is by lower bolster (11), lower mold core (12), upper mold core (13) and die sleeve (14) are formed, lower mold core (12) is fixedly mounted on the lower bolster (11), die sleeve (14) is fixedly mounted on the lower bolster (11), upper mold core (13) is positioned at the top of lower mold core (12) and die sleeve (14), upper mold core (13) cooperates with die sleeve (14) by positioning spigot, guarantee lower mold core (12), the correctness of upper mold core (13) and die sleeve (14) relative position, form the oil sealing die cavity (15) identical with outside framework oil seal cross sectional shape to be pressed, it is characterized in that: be provided with 3～6 hole for injecting glue (16) equably on the same circumference of the upper surface of upper mold core (13), all hole for injecting glue (16) interlink with oil sealing die cavity (15).
2. according to the described rotating-shaft lip-shaped seal ring framework deviation-resisting compacting mold of claim 1, it is characterized in that: circumferentially offer equably in the outer cylinder surface upper edge of lower mold core (12) and contain groove (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201712299U CN201685397U (en) | 2010-04-27 | 2010-04-27 | Framework deviation-preventing pressing die for rotary shaft lip-shaped sealing rings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201712299U CN201685397U (en) | 2010-04-27 | 2010-04-27 | Framework deviation-preventing pressing die for rotary shaft lip-shaped sealing rings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201685397U true CN201685397U (en) | 2010-12-29 |
Family
ID=43373686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201712299U Expired - Lifetime CN201685397U (en) | 2010-04-27 | 2010-04-27 | Framework deviation-preventing pressing die for rotary shaft lip-shaped sealing rings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201685397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817214A (en) * | 2010-04-27 | 2010-09-01 | 常州朗博汽车零部件有限公司 | Rotating-shaft lip-shaped seal ring framework deviation-resisting compacting mold |
-
2010
- 2010-04-27 CN CN2010201712299U patent/CN201685397U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817214A (en) * | 2010-04-27 | 2010-09-01 | 常州朗博汽车零部件有限公司 | Rotating-shaft lip-shaped seal ring framework deviation-resisting compacting mold |
| CN101817214B (en) * | 2010-04-27 | 2015-04-08 | 常州朗博汽车零部件有限公司 | Rotating-shaft lip-shaped seal ring framework deviation-resisting compacting mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101229 Effective date of abandoning: 20150408 |
|
| RGAV | Abandon patent right to avoid regrant |