CN103206284A - Rapid cooling lubrication structure for crankshaft rear oil seal - Google Patents
Rapid cooling lubrication structure for crankshaft rear oil seal Download PDFInfo
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- CN103206284A CN103206284A CN2012105541033A CN201210554103A CN103206284A CN 103206284 A CN103206284 A CN 103206284A CN 2012105541033 A CN2012105541033 A CN 2012105541033A CN 201210554103 A CN201210554103 A CN 201210554103A CN 103206284 A CN103206284 A CN 103206284A
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- oil seal
- bent axle
- rear oil
- axle rear
- crankshaft
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Abstract
The invention discloses an oil seal lubrication structure, and provides a rapid cooling lubrication structure for a crankshaft rear oil seal, wherein the rapid cooling lubrication structure is simple, can effectively improve the lubrication state of the crankshaft rear oil seal and a crankshaft, reduces the temperature of frictional portions, prolongs the service life of the crankshaft rear oil seal, and solves the technical problems that the crankshaft rear oil seal is easily aged due to friction temperature rise, carbon deposition on a lip is aggravated, crankshaft neck friction is enlarged, so that a crankshaft neck is scratched, the oil seal loses effectiveness when the crankshaft neck is seriously scratched, and engine power is further reduced and the like due to leakage of lubricating oil of a crankshaft box in the prior art. The rapid cooling lubrication structure comprises the crankshaft rear oil seal and a crankshaft rear oil seal cover which are sleeved on the crankshaft on a cylinder, the crankshaft rear oil seal cover is covered outside the crankshaft rear oil seal, the crankshaft rear oil seal is sealed between the cylinder and the crankshaft rear oil seal cover by the crankshaft rear oil seal cover, an oil through hole is arranged on the end surface of the cylinder, the inner side end of the oil through hole is communicated with a main oil passage in the cylinder, and the outer side end of the oil through hole is communicated with the crankshaft rear oil seal.
Description
Technical field
The present invention relates to a kind of oil sealing lubricating structure, relate in particular to a kind of avoid bent axle Rear oil seal and bent axle dry friction, prolong the bent axle Rear oil seal quick cooling and lubricating structure of bent axle Rear oil seal in working life.
Background technique
The bent axle Rear oil seal is that the lubricant oil of crankcase and the external world are separated, internally oil sealing, external dust-tight component.The sealing lip of bent axle Rear oil seal and crankshaft journal are held tightly during use, therefore the bent axle Rear oil seal is in Frotteurism for a long time with the bent axle of run up (regular price gasoline machine rated speed is about 6000rpm), the local temperature at friction position even surpass the invalid temperature of oil seal lip material when the motor higher rotation speed, not only cause the bent axle Rear oil seal aging, the lip carbon distribution increases the weight of, the crankshaft journal friction is increased, thereby cause the crankshaft journal scratch, oil seal failure when serious, the oil seepage of crankcase further causes engine power to descend.
Chinese patent discloses a kind of engine crankshaft combination Rear oil seal device (CN200961697Y), it mainly adopts seal lip to place in the sealing seat, both are directly formed one, form a black box, again this black box is fixed on body and the oil sump with fixing bolt.Though it is one-body molded that the sealing lip in this structure and sealing seat adopt, but it exists oil sealing easily aging equally, the lip carbon distribution increases the weight of, the crankshaft journal friction is increased, thereby cause the crankshaft journal scratch, oil seal failure when serious, the oil seepage of crankcase further causes degradation technical problem under the engine power.
Summary of the invention
The present invention has mainly provided a kind of simple in structure, can effectively improve the lubricating status of bent axle Rear oil seal and bent axle, reduce the temperature at friction position, prolong the bent axle Rear oil seal quick cooling and lubricating structure of bent axle Rear oil seal in working life, having solved the bent axle Rear oil seal that exists in the prior art easily wears out because of friction Temperature Rise, the lip carbon distribution is increased the weight of, the crankshaft journal friction increases, cause the crankshaft journal scratch, oil seal failure when serious, the oil seepage of crankcase further causes the technical problem of degradation under the engine power.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: the quick cooling and lubricating structure of a kind of bent axle Rear oil seal, comprise the bent axle Rear oil seal and the bent axle Rear oil seal lid that are set on the cylinder block on the bent axle, bent axle Rear oil seal housing is located at outside the bent axle Rear oil seal and with the bent axle Rear oil seal and is encapsulated between cylinder block and the bent axle Rear oil seal lid, end face in described cylinder block is provided with oil through, main oil gallery in the medial extremity of oil through and the cylinder block is connected, and the outboard end of oil through is connected with the bent axle Rear oil seal.By offering oil through at bent axle Rear oil seal inner side surface corresponding cylinder body, and an end of oil through and the inner side surface of bent axle Rear oil seal are conducted, main oil gallery in the other end and the cylinder block is conducted, during engine start, pressure oil in the main oil gallery namely carries in the space that oil through enters bent axle Rear oil seal place, the surface of contact of bent axle Rear oil seal and bent axle is gone in the stepping of going forward side by side, thereby improved the lubricating status of bent axle Rear oil seal and bent axle, reduced the temperature at friction position, not only prolong bent axle Rear oil seal working life, and guaranteed the stable performance of engine performance.
As preferably, described oil through is vertical on the bent axle Rear oil seal corresponding cylinder body end face.Convenient processing reduces the lubricant oil stroke simultaneously, guarantees that the surface of contact of bent axle Rear oil seal and bent axle obtains fast lubricant and cooling behind engine start.
As preferably, in described oil through, be embedded with cooling jet, cooling jet is the tubular structure that an end seals an end opening, the closed end of cooling jet is towards the bent axle Rear oil seal, and is provided with several mist of oil spray orifices at the closed end of cooling jet.The cooling jet that has the mist of oil spray orifice by setting-in in oil through, make the pressure lubrication oil of derivation be vaporific, the surface of contact of bent axle Rear oil seal and bent axle is lubricated behind engine start evenly and rapidly, and make the sealing receiving cavity at bent axle Rear oil seal place have certain pressure, this pressure is used for the balance oil pressure on the one hand, prevent that too much lubricant oil from importing, the surface of contact of guaranteeing bent axle Rear oil seal and bent axle on the other hand obtains sufficient lubricated and cooling, simple in structure, easy for installation, effectively balance the external and internal pressure of bent axle Rear oil seal, under the prerequisite that guarantees sealing, effectively improve the lubricating status of bent axle Rear oil seal and bent axle, reduce the temperature at friction position.
As more preferably, described cooling jet is ladder pipe small in ends broad in the middle, and the miner diameter end of cooling jet extends in outside the cylinder block wall, and the mist of oil spray orifice is located on the outer corresponding cooling jet miner diameter end of cylinder block.When cooling jet is ladder pipe small in ends broad in the middle, is convenient to processing and installs, inboard thin footpath end may extend in the main lubricated road, and the thin footpath end in the outside is used for arranging the mist of oil spray orifice, improves atomizing effect, and it is sufficient lubricated to guarantee that the friction position obtains.
As more preferably, the aperture of described cooling jet is φ 2mm to φ 5mm, and the latus rectum of mist of oil spray orifice is φ 0.2mm to φ 1mm.Reasonably atomizing effect can be improved in cooling jet and mist of oil spray orifice aperture, guarantees that the friction position obtains sufficient lubricating.
Therefore, the quick cooling and lubricating structure of a kind of bent axle Rear oil seal of the present invention has following advantage:
1. when engine cold had just started, lubricant oil arrived the cooling jet place that aims at cooling bent axle Rear oil seal by main oil gallery, and fast lubricant bent axle Rear oil seal reduces bent axle Rear oil seal and crankshaft journal unlubricated friction time;
2. during engine running, cooling jet sprays to the bent axle Rear oil seal incessantly with filtering cooled lubricant oil in the main oil gallery, thereby make bent axle Rear oil seal temperature maintenance prolong its working life at a lower state, and reduce the friction of bent axle Rear oil seal and crankshaft journal;
3. easy for installation for realizing nozzle, adopt press-loading process to realize the efficient and convenient installation of nozzle.
Description of drawings:
Fig. 1 is the explosive view of the quick cooling and lubricating structure of a kind of bent axle Rear oil seal of the present invention;
Fig. 2 is the dismantle structural representation of bent axle Rear oil seal and bent axle Rear oil seal lid of the present invention;
Fig. 3 is A place enlarged view shown in Figure 2;
Fig. 4 is the enlarged view of cooling jet.
Embodiment:
Below by embodiment, and by reference to the accompanying drawings, technological scheme of the present invention is described in further detail.
Embodiment:
As depicted in figs. 1 and 2, the quick cooling and lubricating structure of a kind of bent axle Rear oil seal of the present invention, comprise cylinder block 1, bent axle Rear oil seal 3 of suit and bent axle Rear oil seal lid 4 successively on bent axle 2 axle journals of cylinder block 1, wherein bent axle Rear oil seal lid 4 covers are contained in outside the bent axle Rear oil seal 3 and with bent axle Rear oil seal 3 and are encapsulated between cylinder block 1 exterior edge face and the bent axle Rear oil seal lid 4, as shown in Figure 3, on the exterior edge face of cylinder block 1, vertically have an oil through 5, between the main oil gallery and bent axle Rear oil seal 3 inner side surfaces of two ends connection in cylinder block 1 of oil through 5, copper cooling jet 6 of setting-in in oil through 5, as shown in Figure 4, cooling jet 6 is the outboard end sealing, the tubular structure of medial extremity opening, its diameter of bore is φ 3mm, and it is broad in the middle small in ends stepped that cooling jet 6 is, the bigger diameter end face of cooling jet 6 is equal with the inside and outside wall of cylinder block 1 neat, its inboard miner diameter end extends the main oil gallery that is communicated in the cylinder block 1, have several mist of oil spray orifices 7 at cooling jet 6 outside miner diameter ends towards bent axle Rear oil seal 3, the latus rectum of mist of oil spray orifice 7 is φ 0.3mm.
During use, when engine cold started, the main oil gallery of lubricant oil in cylinder block 1 entered cooling jet 6, again from the 7 ejection back atomizings of mist of oil spray orifice, and then the surface of contact of fast lubricant bent axle Rear oil seal 3 and bent axle 2, reduced the unlubricated friction time of bent axle Rear oil seal 3 with bent axle 2 axle journals; During normal working of engine, cooling jet 6 sprays to bent axle Rear oil seal 3 incessantly with filtering cooled lubricant oil in the main oil gallery, make bent axle Rear oil seal 3 temperature maintenance at a lower state, thereby prolonged the working life of bent axle Rear oil seal 3, and improved the lubricating status of bent axle Rear oil seal 3 with bent axle 2 axle journals.
Specific embodiment described herein only is that design of the present invention is illustrated.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Claims (5)
1. quick cooling and lubricating structure of bent axle Rear oil seal, comprise the bent axle Rear oil seal (3) and the bent axle Rear oil seal lid (4) that are set on the cylinder block (1) on the bent axle (2), bent axle Rear oil seal lid (4) is located at outside the bent axle Rear oil seal (3) and with bent axle Rear oil seal (3) and is encapsulated between cylinder block (1) and the bent axle Rear oil seal lid (4), it is characterized in that: the end face in described cylinder block (1) is provided with oil through (5), main oil gallery in the medial extremity of oil through (5) and the cylinder block (1) is connected, and the outboard end of oil through (5) is connected with bent axle Rear oil seal (3).
2. the quick cooling and lubricating structure of a kind of bent axle Rear oil seal according to claim 1, it is characterized in that: described oil through (5) is vertical on bent axle Rear oil seal (3) corresponding cylinder body (1) end face.
3. the quick cooling and lubricating structure of a kind of bent axle Rear oil seal according to claim 1 and 2, it is characterized in that: in described oil through (5), be embedded with cooling jet (6), cooling jet (6) is the tubular structure that an end seals an end opening, the closed end of cooling jet (6) is towards bent axle Rear oil seal (3), and is provided with several mist of oil spray orifices (7) at the closed end of cooling jet (6).
4. according to the quick cooling and lubricating structure of a kind of bent axle Rear oil seal of claim described 3, it is characterized in that: described cooling jet (6) is ladder pipe small in ends broad in the middle, and the miner diameter end of cooling jet (6) extends in outside cylinder block (1) wall, and mist of oil spray orifice (7) is located on outer corresponding cooling jet (6) miner diameter end of cylinder block (1).
5. the quick cooling and lubricating structure of a kind of bent axle Rear oil seal according to claim 3, it is characterized in that: the aperture of described cooling jet (6) is φ 2mm to φ 5mm, the latus rectum of mist of oil spray orifice (7) is φ 0.2mm to φ 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554103.3A CN103206284B (en) | 2012-12-19 | 2012-12-19 | Rapid cooling lubrication structure for crankshaft rear oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210554103.3A CN103206284B (en) | 2012-12-19 | 2012-12-19 | Rapid cooling lubrication structure for crankshaft rear oil seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103206284A true CN103206284A (en) | 2013-07-17 |
| CN103206284B CN103206284B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210554103.3A Active CN103206284B (en) | 2012-12-19 | 2012-12-19 | Rapid cooling lubrication structure for crankshaft rear oil seal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953115A (en) * | 2018-09-27 | 2018-12-07 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of atomized lubrication device, crankshaft, compressor and refrigerator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56154511U (en) * | 1980-04-17 | 1981-11-18 | ||
| JP2000291808A (en) * | 1999-04-13 | 2000-10-20 | Honda Motor Co Ltd | Oil seal lubricating device |
| JP2001303920A (en) * | 2000-04-28 | 2001-10-31 | Sanshin Ind Co Ltd | Spline lubrication structure for outboard motor |
| JP2004052863A (en) * | 2002-07-18 | 2004-02-19 | Shinagawa Kogyosho:Kk | Seal structure of main shaft of agitating device |
| JP2007232181A (en) * | 2006-03-03 | 2007-09-13 | Toyota Motor Corp | Rear end sealing structure of crankshaft |
| CN201100268Y (en) * | 2007-05-30 | 2008-08-13 | 付培勇 | Rotary axis seal for assembly plaster discharge pump |
-
2012
- 2012-12-19 CN CN201210554103.3A patent/CN103206284B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56154511U (en) * | 1980-04-17 | 1981-11-18 | ||
| JP2000291808A (en) * | 1999-04-13 | 2000-10-20 | Honda Motor Co Ltd | Oil seal lubricating device |
| JP2001303920A (en) * | 2000-04-28 | 2001-10-31 | Sanshin Ind Co Ltd | Spline lubrication structure for outboard motor |
| JP2004052863A (en) * | 2002-07-18 | 2004-02-19 | Shinagawa Kogyosho:Kk | Seal structure of main shaft of agitating device |
| JP2007232181A (en) * | 2006-03-03 | 2007-09-13 | Toyota Motor Corp | Rear end sealing structure of crankshaft |
| CN201100268Y (en) * | 2007-05-30 | 2008-08-13 | 付培勇 | Rotary axis seal for assembly plaster discharge pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953115A (en) * | 2018-09-27 | 2018-12-07 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of atomized lubrication device, crankshaft, compressor and refrigerator |
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| Publication number | Publication date |
|---|---|
| CN103206284B (en) | 2015-03-25 |
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