CN200958430Y - Rear oil-seal assembly structure of crank shaft for diesel-oil engine - Google Patents
Rear oil-seal assembly structure of crank shaft for diesel-oil engine Download PDFInfo
- Publication number
- CN200958430Y CN200958430Y CN 200620077819 CN200620077819U CN200958430Y CN 200958430 Y CN200958430 Y CN 200958430Y CN 200620077819 CN200620077819 CN 200620077819 CN 200620077819 U CN200620077819 U CN 200620077819U CN 200958430 Y CN200958430 Y CN 200958430Y
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- oil seal
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Abstract
The utility model relates to a crankshaft rear oil seal unit structure of the diesel engine, in particular to a crankshaft rear oil seal for the diesel engine, belongs to the technical field of sealing device, mainly comprises a sealing main lip and a dustproof secondary lip, bonded or vulcanized on the base plate and is characterized that: a coat of phosphorized liquid is applied on the surface of the base plate; the spinning return lines are carved on the back or the right and back sides of the main lip respectively; and the diagonal lines are cut on the back side of the dustproof secondary lip. The utility model is simple, compact and reasonable in structure; the phosphating is done on the surface of the base plate; the spinning return lines are carved on the back or the right and back sides of the main lip respectively; the diagonal lines are cut on the back side of the dustproof secondary lip; to avoid oil overflow, reduce oil leak and prevent dust suction; the crankshaft rear oil seal unit mounted on the fly wheel casing of the engine can bring the whole seal set at the static sealing state so that the sealing stability and effect are better. In addition, the utility model is provided with such advantages as beautiful appearance, uneasy corrosion and low production cost and can improve the assembly efficiency.
Description
Technical field
The utility model relates to a kind of crankshaft of diesel engine Rear oil seal modular construction, specifically is used for diesel engines such as AKZ series, DF series, 43D series, 35D series, F51Q series, D6 series as the bent axle Rear oil seal, belongs to the seal arrangement technical field.
Background technique
At present, crankshaft of diesel engine Rear oil seal assembly mainly is made up of standard oil sealing and oil sealing base (aluminum alloy material).Earlier the standard oil sealing is pressed in the oil sealing base, again they is installed on the flywheel shell of engine together.The bent axle combination oil seal modular construction complexity of this kind structure is installed and used trouble, the oil spill rate height.Though the another kind of combination oil seal structure that adopted is used faciostenosis, only use on 110 diesel versions, and effect is not ideal enough.Combination oil seal module outer surface in the prior art is not done spraying treatmen, is very easy to get rusty, cause the main lip of combination oil seal and substrate bonding not firm, peel off, influence using effect easily; Secondary lip dust easily sucks poor sealing performance.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thereby provides a kind of phosphatization of carrying out on substrate surface to handle; Be carved with the derotation return wire respectively on reverse side or the positive and negative on the main lip sheet; Dustproof secondary lip reverse side is carved with twill line; Can stop leaking of oil, reduce the leakage of oil approach; Prevent that dust is inhaled into; After its bent axle Rear oil seal assembly is installed on the flywheel shell of engine, can make whole black box be in static sealing; Sealing is reliable, the crankshaft of diesel engine Rear oil seal modular construction of better effects if.
Main solution of the present utility model is achieved in that
The utility model mainly adopt the sealing main lip bonding or the sulfuration on substrate, on the substrate sulfuration or bonding dustproof secondary lip, feature is to be coated with one deck phosphatization liquid on substrate surface; On reverse side or positive and negative on the main lip, be carved with the derotation return wire respectively; On dustproof secondary lip reverse side, be carved with twill line.
The dustproof secondary lip of the utility model adopts rubber material or felt to make.
Compared with the prior art the utility model has the following advantages:
The utility model is simple, compact and reasonable for structure; Because carrying out phosphatization on substrate surface handles; Be carved with the derotation return wire respectively on reverse side or the positive and negative on the main lip sheet; Dustproof secondary lip reverse side is carved with twill line; Can stop leaking of oil, reduce the leakage of oil approach; Prevent that dust is inhaled into; After its bent axle Rear oil seal assembly is installed on the flywheel shell of engine, can make whole black box be in static sealing; Sealing is reliable, better effects if; Beautiful shape is difficult for corrosion; Low cost of manufacture, and can improve efficiency of assembling.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model board structure schematic representation.
Fig. 3 is the utility model master procheilon structure schematic representation.
Fig. 4 is the dustproof secondary procheilon structure schematic representation of the utility model.
Embodiment
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
The utility model mainly is made up of substrate 1, the main lip 2 of sealing, dustproof secondary lip 3.Seal main lip 2 bonding (or sulfuration) on substrate 1, the dustproof secondary lip 3 of sulfuration (or bonding) on the substrate 1.
The utility model substrate 1 adopts cold-rolling steel-plate punch to form, and its function is a skeleton as this device.The phosphatization processing need be carried out in the surface, is coated with one deck phosphatization liquid 4 on substrate 1 surface.Sealing main lip 2 adopts the modified Teflon compacting to form, chemical treatment (handling back color blackening brown) need be carried out in this main lip sheet surface, be carved with derotation return wire 5 on it on reverse side or the positive and negative respectively, it has contacting of broad with main shaft, when main axis rotation, can produce one strong to inner suction, can stop leaking of oil.This main lip 2 directly bonding (or sulfuration) is on substrate 1.Dustproof secondary lip 3 adopts rubber (or felt) to make, and is carved with twill line 6 at its reverse side and directly vulcanizes (or bonding) on substrate 1, and its major function is to prevent that dust is inhaled into.
The utility model uses when installing and puts O type rubber seal (or adding the sealing plain cushion on the A face) at the D face, after this bent axle Rear oil seal assembly is installed on the flywheel shell of engine, makes whole Sealing be in static sealing.
Claims (2)
1, a kind of crankshaft of diesel engine Rear oil seal modular construction, it mainly adopts the bonding or sulfuration of the main lip of sealing (2) on substrate (1), and substrate (1) is gone up sulfuration or bonding dustproof secondary lip (3), it is characterized in that being coated with one deck phosphatization liquid (4) on substrate (1) surface; On last reverse side of main lip (2) or positive and negative, be carved with derotation return wire (5) respectively; On dustproof secondary lip (3) reverse side, be carved with twill line (6).
2, crankshaft of diesel engine Rear oil seal modular construction according to claim 1 is characterized in that described dustproof secondary lip (3) adopts rubber material or felt to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620077819 CN200958430Y (en) | 2006-09-22 | 2006-09-22 | Rear oil-seal assembly structure of crank shaft for diesel-oil engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620077819 CN200958430Y (en) | 2006-09-22 | 2006-09-22 | Rear oil-seal assembly structure of crank shaft for diesel-oil engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200958430Y true CN200958430Y (en) | 2007-10-10 |
Family
ID=38785310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620077819 Expired - Fee Related CN200958430Y (en) | 2006-09-22 | 2006-09-22 | Rear oil-seal assembly structure of crank shaft for diesel-oil engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200958430Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109983262A (en) * | 2016-11-28 | 2019-07-05 | 斯堪尼亚商用车有限公司 | Rotatable shaft seal for combustion engine |
| CN116146370A (en) * | 2022-11-30 | 2023-05-23 | 中国石油集团济柴动力有限公司 | Engine crankshaft end sealing structure, engine, vehicle and method |
-
2006
- 2006-09-22 CN CN 200620077819 patent/CN200958430Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109983262A (en) * | 2016-11-28 | 2019-07-05 | 斯堪尼亚商用车有限公司 | Rotatable shaft seal for combustion engine |
| CN109983262B (en) * | 2016-11-28 | 2020-11-10 | 斯堪尼亚商用车有限公司 | Sealing arrangement for a rotatable shaft of a combustion engine |
| CN116146370A (en) * | 2022-11-30 | 2023-05-23 | 中国石油集团济柴动力有限公司 | Engine crankshaft end sealing structure, engine, vehicle and method |
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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: 20071010 Termination date: 20150922 |
|
| EXPY | Termination of patent right or utility model |