CN210344243U - Engine crankshaft thrust plate forced lubrication structure - Google Patents
Engine crankshaft thrust plate forced lubrication structure Download PDFInfo
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- CN210344243U CN210344243U CN201920980645.4U CN201920980645U CN210344243U CN 210344243 U CN210344243 U CN 210344243U CN 201920980645 U CN201920980645 U CN 201920980645U CN 210344243 U CN210344243 U CN 210344243U
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Abstract
The utility model relates to a forced lubrication structure of an engine crankshaft thrust plate, which comprises a novel structure of an engine body, a thrust bearing cover and a thrust plate; the thrust plate comprises a front end thrust plate, a rear end upper thrust plate and a rear end lower thrust plate; the oil duct comprises a main bearing oil duct on the main oil duct and a thrust groove oil duct on the rear end of the engine body, wherein the thrust groove oil duct is communicated with the main bearing oil duct. The utility model provides a novel bent axle thrust piece lubricating structure changes the thrust piece lubrication mode into using force-feed lubrication to give first place to by the lubrication of splashing, effectively reduces the thrust piece risk of becoming invalid.
Description
Technical Field
The utility model relates to a bent axle thrust piece force-feed lubrication structure, concretely relates to organism, footstep bearing lid, bent axle thrust piece's novel structure belongs to engine technical field.
Background
A common crankshaft axial positioning mode in the field of engines is to adopt a crankshaft thrust plate, and a thrust friction pair is lubricated by splashing. Lubricating oil of a main journal of a crankshaft splashes to the thrust plate and a thrust boss of the crankshaft under the action of a rotating centrifugal force to form a lubricating oil film in the running process of the engine, and the ideal lubricating oil film can greatly reduce friction of a friction pair of the thrust plate in the running process and take away heat generated by the friction, so that the thrust plate is in an ideal working state.
In the practical process, when the engine is started from shutdown to idling, sufficient lubricating oil is not provided between the thrust plate friction pairs, the thrust plate friction pairs are in a short dry friction state, under the splashing lubrication of the crankshaft, the lubricating oil between the thrust plate friction pairs is increased to enter a mixed friction state, and finally, a complete oil film is formed to achieve a good lubricating state.
With the application of the idling start-stop technology in recent years, when an automobile runs on an urban road, working conditions such as speed reduction and stop frequently occur, and working conditions such as clutch stepping-engine stop-clutch stepping-engine start frequently occur, so that dry friction and mixed friction frequently occur between friction pairs of thrust plates at the rear end (clutch end), particularly, the separation force generated when the clutch is separated is the maximum axial acting force borne by the thrust plates, and the lubrication condition between the friction pairs is further aggravated. The frequent dry and mixed friction between the friction pair of the thrust plate at the rear end can generate a large amount of heat, which causes thermal fatigue of the alloy of the thrust plate, thereby causing the thrust plate to fail.
In summary, it is necessary to optimize the lubrication between the friction pair of the thrust plate at the rear end to reduce the risk of failure of the thrust plate.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned weak point, provide a new bent axle thrust piece lubricating structure, be about for thrust piece lubrication mode to use force-feed lubrication to take the lead by the lubrication of splashing, effectively reduce the thrust piece risk of becoming invalid.
According to the technical scheme of the utility model, the utility model relates to a forced lubrication structure of the thrust plate of the engine crankshaft, which comprises a novel structure of the engine body, a thrust bearing cover and the thrust plate; the method is characterized in that: the thrust plate comprises a front end thrust plate, a rear end upper thrust plate and a rear end lower thrust plate; the oil duct comprises a main bearing oil duct on the main oil duct and a thrust groove oil duct on the rear end of the engine body, wherein the thrust groove oil duct is communicated with the main bearing oil duct.
As a further improvement of the utility model, the thrust plate on the rear end is provided with a thrust plate oil guide hole on the rear end and a thrust plate oil groove on the rear end; and a thrust plate positioning tongue at the rear end is arranged at the same time.
As a further improvement of the present invention, a rear end lower thrust plate oil groove corresponding to the rear end upper thrust plate oil groove is provided in the rear end lower thrust plate; and a rear-end lower thrust plate positioning tongue is arranged at the same time.
As the utility model discloses a further improvement, the organism covers with footstep bearing and processes the thrust washer mounting groove respectively, the mounting groove includes thrust washer mounting groove, organism front end thrust washer mounting groove, footstep bearing lid rear end under thrust washer mounting groove and the footstep bearing lid front end thrust washer mounting groove on the organism rear end, thrust washer and organism and the footstep bearing thrust washer mounting groove looks adaptation of covering.
As a further improvement of the utility model, the machine body is provided with a thrust plate positioning groove at the rear end of the machine body (and a thrust plate positioning groove at the front end of the machine body).
As a further improvement of the present invention, the thrust bearing cover is provided with a thrust plate positioning groove at the rear end of the thrust bearing cover and a thrust plate positioning groove at the front end of the thrust bearing cover.
As a further improvement of the utility model, set up front end thrust piece location tongue and front end thrust piece oil storage tank in the front end thrust piece.
As a further improvement of the present invention, the differential design of the rear-end upper thrust plate positioning tongue, the rear-end lower thrust plate positioning tongue and the front-end thrust plate positioning tongue is provided.
As a further improvement of the utility model, the engine comprises any one of the engine crankshaft thrust plate forced lubrication structure.
Compared with the prior art, the utility model has the advantages of it is following:
after the engine is started, lubricating oil rapidly enters the rear end thrust friction pair through the related oil duct, the oil guide hole and the oil guide groove, a good lubricating oil film can be rapidly established, related fatigue failure caused by poor lubrication between the thrust friction pair is avoided, and the design purpose of prolonging the service life of the thrust plate is achieved.
Drawings
Fig. 1 is a characteristic diagram of the front end of the thrust bearing cover and the machine body of the present invention.
Fig. 2 is a rear end characteristic diagram of the machine body and the thrust bearing cover of the present invention.
Fig. 3 is the related parts assembly and oil duct cross-sectional view of the present invention.
Fig. 4 is a characteristic diagram of the rear end upper thrust plate and the rear end lower thrust plate of the present invention.
Fig. 5 is a characteristic diagram of the front thrust plate of the present invention.
Description of reference numerals: 1-engine body, 2-thrust bearing cover, 3-front end thrust plate, 4-rear end upper thrust plate, 5-rear end lower thrust plate, 6-engine body main oil duct, 7-engine body main bearing oil duct, 8-engine body rear end upper thrust groove oil duct, 9-engine body rear end upper thrust plate mounting groove, 10-engine body rear end upper thrust plate positioning groove, 11-thrust bearing cover rear end lower thrust plate mounting groove, 12-thrust bearing cover rear end lower thrust plate positioning groove, 13-engine body front end thrust plate positioning groove, 14-engine body front end thrust plate mounting groove, 15-thrust bearing cover front end thrust plate mounting groove, 16-thrust bearing cover front end thrust plate positioning groove, 17-rear end upper thrust plate oil guide hole, 18-rear end upper thrust plate oil groove, 19-rear end upper thrust plate positioning tongue, 19-thrust bearing cover front end upper thrust plate positioning tongue, 20-rear end lower thrust plate oil groove, 21-rear end lower thrust plate positioning tongue, 22-front end thrust plate positioning tongue and 23-front end thrust plate oil storage groove.
Detailed Description
The present invention will be further described with reference to the drawings.
As shown in fig. 1-5, a forced lubrication structure of a thrust plate of an engine crankshaft comprises a body 1, a thrust bearing cover 2 and the thrust plate, which are of a novel structure; the thrust plate comprises a front end thrust plate 3, a rear end upper thrust plate 4 and a rear end lower thrust plate 5; the engine body 1 is processed into an oil duct for supplying oil to the thrust plate, and the oil duct comprises a main bearing oil duct 7 on a main oil duct 6 and a thrust groove oil duct 8 on the rear end of the engine body, wherein the main bearing oil duct 7 is communicated with the main bearing oil duct 7.
Furthermore, the rear end upper thrust plate 4 is provided with a rear end upper thrust plate oil guide hole 17 and a rear end upper thrust plate oil groove 18; and a thrust plate positioning tongue 19 at the rear end is arranged. A rear end lower thrust plate oil groove 20 corresponding to the rear end upper thrust plate oil groove 18 is arranged in the rear end lower thrust plate 5; and a rear end lower thrust plate positioning tongue 21 is arranged.
Further, mutually thrust washer mounting groove is processed respectively on organism 1 and the footstep bearing lid 2, the mounting groove includes thrust washer mounting groove 9 on the organism rear end, organism front end thrust washer mounting groove 14, footstep bearing lid rear end thrust washer mounting groove 11 and footstep bearing lid front end thrust washer mounting groove 15 down, thrust washer and organism 1 and the thrust washer mounting groove looks adaptation on the footstep bearing lid 2. The machine body 1 is provided with a thrust plate positioning groove 10 at the rear end of the machine body and a thrust plate positioning groove 13 at the front end of the machine body.
Furthermore, the thrust bearing cover 2 is provided with a lower thrust plate positioning groove (12) at the rear end of the thrust bearing cover and a front thrust plate positioning groove 16 at the front end of the thrust bearing cover; and a front end thrust plate positioning tongue 22 and a front end thrust plate oil storage groove 23 are arranged in the front end thrust plate (3).
Further, the main oil gallery 6, the upper main bearing oil gallery 7, the upper thrust groove oil gallery 8 at the rear end of the engine body, the upper thrust plate oil guide hole 17 at the rear end, the upper thrust plate oil groove 18 at the rear end and the lower thrust plate oil groove 20 at the rear end form a complete lubricating oil path. Therefore, when the engine is started, the engine oil in the engine main oil gallery 6 rapidly enters the rear-end upper thrust plate oil groove and the rear-end lower thrust plate oil groove 20 under the action of pressure, and a good lubricating oil film is formed in a friction pair gap formed by the rear-end thrust plate and the crankshaft thrust boss surface, so that the rear-end thrust friction pair is lubricated and friction heat generated by the rear-end thrust friction pair is rapidly taken away, the fatigue failure risk of the rear-end thrust plate is reduced, and the service life of the rear-end thrust plate is prolonged. Compared with the traditional 4 thrust plate combination, the utility model discloses basically not increase cost.
Furthermore, the front end thrust friction pair is still subjected to traditional splash lubrication due to small load. If the load borne by the thrust plate at the front end of the engine is increased, the forced lubrication design can also be carried out, and the principle of the forced lubrication design is the same as that of the rear end design.
Further, as shown in fig. 1-5, the utility model discloses from the structural mistake proofing design of thrust piece, specifically include: the rear end upper thrust plate positioning tongue 19 is arranged at the aligning position of the thrust plates, and the rear end lower thrust plate positioning tongue 21 is arranged in the vertical direction and deviates from the vertical central line, so that the rear end upper thrust plate 4 and the rear end lower thrust plate 5 can be prevented from being assembled in a staggered manner; the front thrust plate locating tongues 22 are arranged in the vertical direction and are symmetrical with respect to the vertical center line, so that the front thrust plate 3 and the rear thrust plate are prevented from being assembled in a staggered manner.
Further, the utility model discloses the relevant CAE of accessible calculates and through the calculation to engine oil supply volume and oil pressure variation, and thrust plate oil groove 20 carries out optimal design under thrust plate oil guide hole 17, the rear end on thrust plate oil groove 18 and the rear end on the rear end, finally reaches the optimum lubrication purpose.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A forced lubrication structure of an engine crankshaft thrust plate comprises a novel structure of an engine body (1), a thrust bearing cover (2) and the thrust plate; the method is characterized in that: the thrust plate comprises a front end thrust plate (3), a rear end upper thrust plate (4) and a rear end lower thrust plate (5); the oil duct for supplying oil to the thrust plate is processed by the engine body (1), and comprises an engine body main bearing oil duct (7) connected to the engine body main bearing oil duct (6) and a thrust groove oil duct (8) communicated with the engine body main bearing oil duct (7) and arranged at the rear end of the engine body.
2. The engine crankshaft thrust plate forced lubrication structure of claim 1, wherein: the rear end upper thrust plate (4) is internally provided with a rear end upper thrust plate oil guide hole (17) and a rear end upper thrust plate oil groove (18); and a thrust plate positioning tongue (19) at the rear end is arranged at the same time.
3. The engine crankshaft thrust plate forced lubrication structure of claim 1, wherein: a rear end lower thrust plate oil groove (20) corresponding to the rear end upper thrust plate oil groove (18) is formed in the rear end lower thrust plate (5); and a rear end lower thrust plate positioning tongue (21) is arranged at the same time.
4. The engine crankshaft thrust plate forced lubrication structure of claim 1, wherein: thrust washer mounting groove is processed respectively on organism (1) and footstep bearing lid (2), the mounting groove includes thrust washer mounting groove (9) on the organism rear end, organism front end thrust washer mounting groove (14), footstep bearing lid rear end thrust washer mounting groove (11) and footstep bearing lid front end thrust washer mounting groove (15), thrust washer and organism (1) and the footstep bearing lid thrust washer mounting groove looks adaptation on (2).
5. The engine crankshaft thrust plate forced lubrication structure of claim 1, wherein: the machine body (1) is provided with a thrust plate positioning groove (10) at the rear end of the machine body and a thrust plate positioning groove (13) at the front end of the machine body.
6. The engine crankshaft thrust plate forced lubrication structure of claim 1, wherein: the thrust bearing cover (2) is provided with a lower thrust plate positioning groove (12) at the rear end of the thrust bearing cover and a front thrust plate positioning groove (16) at the front end of the thrust bearing cover.
7. The engine crankshaft thrust plate forced lubrication structure of claim 1, wherein: and a front end thrust plate positioning tongue (22) and a front end thrust plate oil storage groove (23) are arranged in the front end thrust plate (3).
8. The engine crankshaft thrust plate forced lubrication structure of claim 1, wherein: the upper thrust plate positioning tongue (19) at the rear end, the lower thrust plate positioning tongue (21) at the rear end and the front thrust plate positioning tongue (22) at the front end are designed in a differentiated mode.
9. An engine, characterized by: the engine comprises the engine crankshaft thrust plate forced lubrication structure as recited in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920980645.4U CN210344243U (en) | 2019-06-27 | 2019-06-27 | Engine crankshaft thrust plate forced lubrication structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920980645.4U CN210344243U (en) | 2019-06-27 | 2019-06-27 | Engine crankshaft thrust plate forced lubrication structure |
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| CN210344243U true CN210344243U (en) | 2020-04-17 |
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| CN201920980645.4U Active CN210344243U (en) | 2019-06-27 | 2019-06-27 | Engine crankshaft thrust plate forced lubrication structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142949A (en) * | 2022-05-31 | 2022-10-04 | 河南柴油机重工有限责任公司 | Diesel engine power output device |
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2019
- 2019-06-27 CN CN201920980645.4U patent/CN210344243U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142949A (en) * | 2022-05-31 | 2022-10-04 | 河南柴油机重工有限责任公司 | Diesel engine power output device |
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