CN203431178U - Novel dustproof oil seal structure for axle drive pinion gear - Google Patents
Novel dustproof oil seal structure for axle drive pinion gear Download PDFInfo
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- CN203431178U CN203431178U CN201320500582.0U CN201320500582U CN203431178U CN 203431178 U CN203431178 U CN 203431178U CN 201320500582 U CN201320500582 U CN 201320500582U CN 203431178 U CN203431178 U CN 203431178U
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- secondary lip
- oil sealing
- lip
- transmission shaft
- dust
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Abstract
The utility model discloses a novel dustproof oil seal structure for an axle drive pinion gear. The novel dustproof oil seal structure comprises a transmission shaft, an installation case, a plurality of auxiliary lips, an oil seal and a dust cover. The auxiliary lips are provided with a main lip matched with the surface of the transmission shaft, a first auxiliary lip, a second auxiliary lip and a long auxiliary lip inclining outwards. The inner side of the oil seal is inserted into the auxiliary lips, the outer sides of the auxiliary lips extend out to wrap the oil seal, the dust cover is matched with the long auxiliary lip, and the inner side of the dust cover is matched with the surface of the transmission shaft. The novel dustproof oil seal structure has the advantages of being simple in structure, easy to produce and control and long in service life, and not being prone to damage, and meanwhile, the lips and the dust cover are arranged, so that a plurality of layers of sealing and isolating is achieved and the dustproof effect is good.
Description
Technical field
The utility model relates to sealing configuration technical field, particularly a kind of novel vehicle bridge main cone anti-dust seal structure.
Background technique
Along with the fast development of China's economy, automotive industry has also obtained unprecedented development opportunity, and China progressively becomes the large automobile consumption of the first in the world big country.Especially in recent years, government has strengthened the construction to Infrastructure, and the demand of the heavy-duty car of China is increased.But all the time, a great problem that is perplexing heavy-duty car is exactly the leakage of oil of oil sealing in vehicle bridge, especially the leakage of oil on main cone oil sealing.For this reason, client wish to have very much that a kind of oil sealing is effective, practical, reasonable price, long novel main cone oil sealing of life-span.
Our company passes through, to after the understanding of this main cone oil sealing applying working condition and analyzing, to have summed up several reasons that this oil sealing was in use lost efficacy:
1, the work under bad environment of oil sealing, seriously polluted, and heavy-duty car mainly uses on mining area or building site, after the impurity such as dust, gravel enter into seal lip, is easy to cause lip to wear and tear and lost efficacy;
2, the assembling of oil sealing is comparatively extensive, is easy to make oil sealing dress tiltedly or to be not seated, thereby makes oil sealing occur early stage or leakage of oil in mid-term;
That 3, in vehicle bridge, use is heavy load gear oil GL-5, the heat-resisting quantity that this is oily and larger to the corrosion function of rubber;
4, vehicle is everlasting in the situation of overload and is used, and road conditions are severe, and beating between transmission shaft and housing increased, and reduced the working life of oil sealing.
After analyzing by the three guarantees fault part to some producers, finally determine that causing the main reason of oil seal failure is exactly the oil seal failure that the impurity such as dust, gravel cause the accelerated wear test of oil seal lip.
Model utility content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of novel vehicle bridge main cone anti-dust seal structure, mainly solve the accelerated wear test problems of impurity to oil seal lip such as dust, gravel.
The technical solution adopted in the utility model is such: a kind of novel vehicle bridge main cone anti-dust seal structure, comprise transmission shaft, mounting shell, comprise how secondary lip, oil sealing and dust-proof cover, on described how secondary lip, have with the main lip of transmission shaft surface engagement, the secondary lip of first, the secondary lip of second and be tilted to the outer secondary lip of length, insert in how secondary lip described oil sealing inner side, described how secondary lip outside extends out oil sealing is encased, and described dust-proof cover coordinates and inner side and transmission shaft surface engagement with long secondary lip.
Preferred as the first to such scheme, described oil sealing bends to fluted body, and correspondingly, how secondary lip extends outward the part that encases oil sealing and also bends to fluted body.After arranging like this, inwardly oil sealing of oil sealing, is improved the rigidity of oil sealing, and meanwhile, the lip direction of oil sealing has had the space of layout better.
Because the mounting shell in the utility model is 162, transmission shaft is 97, and span is between the two larger, under less pressure action, will produce larger release power.And under steam, it is recurrent jolting to vehicle.Therefore, above-mentioned preferred version is carried out further preferably, it is half packet form that described how secondary lip extends outward the part that encases oil sealing, to prevent that oil sealing is pushed out.After design, the release power that multiple tracks lip is subject to can be decomposed by oil sealing like this, instead strengthened the degree that pushes against between oil sealing and mounting shell, transmission shaft.
The first preferred version and further preferred version thereof are carried out further preferably, and described oil sealing outside is also provided with a circle disk.This disc structure can make oil sealing accurate positioning when mounted, not run-off the straight, and dismounting is also very convenient.
Consider that the several secondary lip on how secondary lip is to be in dry condition, if be all designed to interference fit between the secondary lip of per pass and transmission shaft, temperature can not get effective diffusion, and secondary lip has been worn soon, has lost dustproof effect.
Therefore, technique scheme being further improved, is 0.2 interference fit between the secondary lip of described first and transmission shaft, is 0.3 interference fit between the secondary lip of second and transmission shaft, is 0.5 interference fit between long secondary lip and dust-proof cover.By the protection of long secondary lip and the secondary lip of second, the impurity of larger particles is isolated by the secondary lip of these twice like this, also protects the secondary lip of these twice not to be worn simultaneously.Although be interference between the secondary lip of first and transmission shaft, due to when mounted, at the secondary lip of first place, be coated with lubricating grease to avoid dry grinding, simultaneously due to the gapped existence of other secondary lips, radiating effect is better, there will not be local temperature too high.
In sum, owing to having adopted technique scheme, the beneficial effects of the utility model are: simple in structure, be easy to manufacture control; The structure of multiple tracks lip and dust-proof cover, realizes multiple-sealed isolation, and dustproof, effect is fine; Be not easy to damage long service life.
Accompanying drawing explanation
Fig. 1 is that the utility model embodiment 6 is installed to the schematic diagram of transmission shaft in conjunction with mounting shell.
Mark in figure: 1 is how secondary lip, 2 is oil sealing, and 3 is dust hood, and 4 is mounting shell, and 5 is transmission shaft, and 1-1 is main lip, and 1-2 is the secondary lip of first, and 1-3 is the secondary lip of second, 1-4 is long secondary lip.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
Embodiment 1: a kind of novel vehicle bridge main cone anti-dust seal structure, comprise transmission shaft 5, mounting shell 4, comprise how secondary lip 1, oil sealing 2 and dust-proof cover 3, on described how secondary lip 1, have with the main lip 1-1 of transmission shaft 5 surface engagement, the secondary lip 1-2 of first, the secondary lip 1-3 of second and be tilted to the outer secondary lip 1-4 of length, insert in how secondary lip 1 described oil sealing 2 inner sides, described how secondary lip 1 outside extends out oil sealing 2 is encased, and described dust-proof cover 3 coordinates and inner side and transmission shaft 5 surface engagement with long secondary lip 1-4.
Embodiment 2: a kind of novel vehicle bridge main cone anti-dust seal structure, comprise transmission shaft 5, mounting shell 4, comprise how secondary lip 1, oil sealing 2 and dust-proof cover 3, on described how secondary lip 1, have with the main lip 1-1 of transmission shaft 5 surface engagement, the secondary lip 1-2 of first, the secondary lip 1-3 of second and be tilted to the outer secondary lip 1-4 of length, insert in how secondary lip 1 described oil sealing 2 inner sides, described how secondary lip 1 outside extends out oil sealing 2 is encased, and described dust-proof cover 3 coordinates and inner side and transmission shaft 5 surface engagement with long secondary lip 1-4.
The present embodiment and embodiment's 1 difference part is, described oil sealing 2 bends to fluted body, and correspondingly, how secondary lip 1 extends outward the part that encases oil sealing 2 and also bends to fluted body.
Embodiment 3: a kind of novel vehicle bridge main cone anti-dust seal structure, comprise transmission shaft 5, mounting shell 4, comprise how secondary lip 1, oil sealing 2 and dust-proof cover 3, on described how secondary lip 1, have with the main lip 1-1 of transmission shaft 5 surface engagement, the secondary lip 1-2 of first, the secondary lip 1-3 of second and be tilted to the outer secondary lip 1-4 of length, insert in how secondary lip 1 described oil sealing 2 inner sides, described how secondary lip 1 outside extends out oil sealing 2 is encased, and described dust-proof cover 3 coordinates and inner side and transmission shaft 5 surface engagement with long secondary lip 1-4.Described oil sealing 2 bends to fluted body, and correspondingly, how secondary lip 1 extends outward the part that encases oil sealing 2 and also bends to fluted body.But the present embodiment and embodiment's 2 difference part is, it is half packet form that described how secondary lip 1 extends outward the part that encases oil sealing 2.
Embodiment 4: a kind of novel vehicle bridge main cone anti-dust seal structure, comprise transmission shaft 5, mounting shell 4, comprise how secondary lip 1, oil sealing 2 and dust-proof cover 3, on described how secondary lip 1, have with the main lip 1-1 of transmission shaft 5 surface engagement, the secondary lip 1-2 of first, the secondary lip 1-3 of second and be tilted to the outer secondary lip 1-4 of length, insert in how secondary lip 1 described oil sealing 2 inner sides, described how secondary lip 1 outside extends out oil sealing 2 is encased, and described dust-proof cover 3 coordinates and inner side and transmission shaft 5 surface engagement with long secondary lip 1-4.
Described oil sealing 2 bends to fluted body, and correspondingly, how secondary lip 1 extends outward the part that encases oil sealing 2 and also bends to fluted body.
The present embodiment and embodiment's 2 difference part is, described oil sealing 2 outsides are also provided with a circle disk.
Embodiment 5: a kind of novel vehicle bridge main cone anti-dust seal structure, comprise transmission shaft 5, mounting shell 4, comprise how secondary lip 1, oil sealing 2 and dust-proof cover 3, on described how secondary lip 1, have with the main lip 1-1 of transmission shaft 5 surface engagement, the secondary lip 1-2 of first, the secondary lip 1-3 of second and be tilted to the outer secondary lip 1-4 of length, insert in how secondary lip 1 described oil sealing 2 inner sides, described how secondary lip 1 outside extends out oil sealing 2 is encased, and described dust-proof cover 3 coordinates and inner side and transmission shaft 5 surface engagement with long secondary lip 1-4.
Described oil sealing 2 bends to fluted body, and correspondingly, how secondary lip 1 extends outward the part that encases oil sealing 2 and also bends to fluted body.But it is half packet form that described how secondary lip 1 extends outward the part that encases oil sealing 2.
Described oil sealing 2 outsides are also provided with a circle disk.
Embodiment 6: a kind of novel vehicle bridge main cone anti-dust seal structure, comprise transmission shaft 5, mounting shell 4, comprise how secondary lip 1, oil sealing 2 and dust-proof cover 3, on described how secondary lip 1, have with the main lip 1-1 of transmission shaft 5 surface engagement, the secondary lip 1-2 of first, the secondary lip 1-3 of second and be tilted to the outer secondary lip 1-4 of length, insert in how secondary lip 1 described oil sealing 2 inner sides, described how secondary lip 1 outside extends out oil sealing 2 is encased, and described dust-proof cover 3 coordinates and inner side and transmission shaft 5 surface engagement with long secondary lip 1-4.Described oil sealing 2 outsides are also provided with a circle disk.
Between the secondary lip 1-2 of described first and transmission shaft 5, being 0.2 interference fit, is 0.3 interference fit between the secondary lip 1-3 of second and transmission shaft 5, and growing between secondary lip 1-4 and dust-proof cover 3 is 0.5 interference fit.
Embodiment 7: as shown in Figure 1, a kind of novel vehicle bridge main cone anti-dust seal structure, comprise transmission shaft 5, mounting shell 4, comprise how secondary lip 1, oil sealing 2 and dust-proof cover 3, on described how secondary lip 1, have with the main lip 1-1 of transmission shaft 5 surface engagement, the secondary lip 1-2 of first, the secondary lip 1-3 of second and be tilted to the outer secondary lip 1-4 of length, insert in how secondary lip 1 described oil sealing 2 inner sides, described how secondary lip 1 outside extends out oil sealing 2 is encased, and described dust-proof cover 3 coordinates and inner side and transmission shaft 5 surface engagement with long secondary lip 1-4.
Described oil sealing 2 bends to fluted body, and correspondingly, how secondary lip 1 extends outward the part that encases oil sealing 2 and also bends to fluted body, shown in the B in Fig. 1, C two.It is half packet form that described how secondary lip 1 extends outward the part that encases oil sealing 2, shown in B in Fig. 1.
Described oil sealing 2 outsides are also provided with a circle disk, shown in A in Fig. 1.
Between the secondary lip 1-2 of described first and transmission shaft 5, being 0.2 interference fit, is 0.3 interference fit between the secondary lip 1-3 of second and transmission shaft 5, and growing between secondary lip 1-4 and dust-proof cover 3 is 0.5 interference fit.
By the product of structure described in the utility model embodiment 6 having been done respectively to the endurance test of 960h, muddy water test and low temperature test.By evidence, the use in the various situations such as this oil sealing can adapt to for a long time completely, beats greatly, high pollution, low temperature.Especially this oil sealing is in durable stand test, and GL-5 gear oil, under the high temperature action of long period, has arrived the later stage of stand test, although partially carbonized situation has appearred in gear oil, generally speaking the utility model still can play good sealing.This explanation, improvement of the present utility model can adapt to rugged environment, is effective.
The foregoing 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 (5)
1. a novel vehicle bridge main cone anti-dust seal structure, comprise transmission shaft (5), mounting shell (4), it is characterized in that: comprise how secondary lip (1), oil sealing (2) and dust-proof cover (3), on described how secondary lip (1), there is the main lip (1-1) with transmission shaft (5) surface engagement, the secondary lip (1-2) of first, the secondary lip (1-3) of second and be tilted to the secondary lip of length (1-4) outward, insert in how secondary lip (1) described oil sealing (2) inner side, described how secondary lip (1) outside extends out oil sealing (2) is encased, described dust-proof cover (3) coordinates and inner side and transmission shaft (5) surface engagement with long secondary lip (1-4).
2. a kind of novel vehicle bridge main cone anti-dust seal structure according to claim 1, is characterized in that: described oil sealing (2) bends to fluted body, and correspondingly, how secondary lip (1) extends outward the part that encases oil sealing (2) and also bends to fluted body.
3. a kind of novel vehicle bridge main cone anti-dust seal structure according to claim 2, is characterized in that: it is half packet form that described how secondary lip (1) extends outward the part that encases oil sealing (2).
4. according to a kind of novel vehicle bridge main cone anti-dust seal structure described in claim 2 or 3, it is characterized in that: described oil sealing (2) outside is also provided with a circle disk.
5. a kind of novel vehicle bridge main cone anti-dust seal structure according to claim 1, it is characterized in that: between the secondary lip (1-2) of described first and transmission shaft (5), be 0.2 interference fit, between the secondary lip (1-3) of second and transmission shaft (5), be 0.3 interference fit, growing between secondary lip (1-4) and dust-proof cover (3) is 0.5 interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500582.0U CN203431178U (en) | 2013-08-16 | 2013-08-16 | Novel dustproof oil seal structure for axle drive pinion gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320500582.0U CN203431178U (en) | 2013-08-16 | 2013-08-16 | Novel dustproof oil seal structure for axle drive pinion gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431178U true CN203431178U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320500582.0U Expired - Lifetime CN203431178U (en) | 2013-08-16 | 2013-08-16 | Novel dustproof oil seal structure for axle drive pinion gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203431178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553036A (en) * | 2019-10-08 | 2019-12-10 | 山东蓬翔汽车有限公司 | sealing structure assembly of mud-isolated rear axle main cone |
-
2013
- 2013-08-16 CN CN201320500582.0U patent/CN203431178U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553036A (en) * | 2019-10-08 | 2019-12-10 | 山东蓬翔汽车有限公司 | sealing structure assembly of mud-isolated rear axle main cone |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |