CN215444241U - Timing cover of engine, engine and vehicle - Google Patents

Abstract

The utility model discloses a timing cover cap of an engine, the engine and a vehicle, wherein the timing cover cap is provided with an outer surface and an inner surface, the inner surface faces a crankshaft of the engine, the timing cover cap is provided with a bulge protruding towards the outer side, a wheel body accommodating groove with a closed outer side and an open inner side is formed in the bulge, and the wheel body accommodating groove is used for accommodating a wheel body positioned at the shaft end of the crankshaft. The timing cover cap has the advantages that the bottom of the timing cover cap is provided with the crankshaft pulley mounting hole, a fully-closed structure is adopted, the mode of the timing cover cap body can be effectively enhanced, the combustion noise of an engine can be better isolated, the crankshaft oil seal is also omitted, the processing procedures are reduced, peripheral moving parts of the engine are greatly reduced, and the arrangement is more compact.

Description

Timing cover of engine, engine and vehicle

Technical Field

The utility model relates to the technical field of automobile engines, in particular to a timing cover of an engine.

Background

The engine is the heart of the automobile and is the output part of the engine power, the timing cover is an indispensable part of the engine, the structure of the timing cover directly affects the performance of the whole engine, and therefore, the timing cover plays a great role in improving the performance of the whole engine. The timing cover is used as an engine peripheral part, plays a role in protecting an engine timing chain system, preventing foreign matters from entering and engine oil from leaking, and also plays a role in reducing noise, and isolates engine combustion noise and mechanical noise of the timing chain system.

In the correlation technique, the timing cover of engine reduces engine vibration and noise level through increasing strengthening rib, filler cap, bolt mounted position optimization etc. at the timing cover medial surface, the lateral surface, but still can't solve the high problem of engine timing cover lid side NVH noise completely, because open the bottom at the timing cover has the crank pulley mounting hole, crank pulley installs in the timing cover outside, can bring the timing cover mode not enough like this, engine running noise comes from this mouthful transmission simultaneously, influence the noise level of engine, lead to the whole NVH performance greatly reduced of engine.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model aims to provide a timing cover cap of an engine, which adopts a fully-closed structure, a crankshaft pulley is arranged at the inner side of the timing cover cap, the mode of a timing cover cap body is enhanced, and the combustion noise of the engine is better isolated.

The utility model also provides an engine and a vehicle, wherein the engine is used as a power device of the vehicle, determines the key performance of the vehicle, and is suitable for a hybrid electric vehicle.

According to the timing cover of the engine of the embodiment of the first aspect of the utility model, the timing cover has the outer surface and the inner surface, the inner surface faces the crankshaft of the engine, the timing cover is provided with the protrusion protruding towards the outer side, the protrusion is internally provided with the wheel body containing groove which is closed at the outer side and is opened at the inner side, and the wheel body containing groove is used for containing the wheel body at the shaft end of the crankshaft.

According to the timing cover disclosed by the embodiment of the utility model, the timing cover is provided with the bulge with the closed outer side and the opened inner side, so that a crankshaft wheel body can be arranged on the inner side of the timing cover, and the mode of the timing cover body can be effectively enhanced; meanwhile, the original crankshaft belt pulley mounting hole and the original crankshaft oil seal are eliminated, combustion noise from the engine can be better isolated from being transmitted outwards, the product cost is greatly reduced, the processing procedures are reduced, and peripheral moving parts of the engine can be arranged more compactly.

According to some embodiments of the present invention, the wheel-receiving groove is cylindrical.

According to some embodiments of the present invention, the wheel body receiving groove has a depth h, and h satisfies the following relation: h is more than or equal to 20mm and less than or equal to 40 mm.

According to some embodiments of the present invention, the wheel body receiving groove has a diameter D, and D satisfies the relationship: d is more than or equal to 100mm and less than or equal to 200 mm.

According to some embodiments of the utility model, the timing cover is provided with a rib on an inner surface thereof, the rib being disposed around an outer periphery of the wheel-receiving groove.

According to some embodiments of the utility model, the reinforcing bar comprises: be curved first strengthening rib, first strengthening rib centers on the periphery setting of wheel body holding tank.

According to some embodiments of the utility model, the reinforcing bar further comprises: and the second reinforcing ribs extend along the radial direction and are linear, and the second reinforcing ribs and the first reinforcing ribs are arranged in a crossed manner.

According to some embodiments of the present invention, the wheel body receiving groove is located at a distance from the first side of the timing cover that is less than a distance from the wheel body receiving groove to the second side of the timing cover, and the stiffener is disposed between the wheel body receiving groove and the second side of the timing cover.

According to some embodiments of the present invention, the wheel body receiving groove is provided with a plurality of third reinforcing ribs on an inner surface thereof, and the plurality of third reinforcing ribs are arranged to cross each other.

According to some embodiments of the present invention, the outer surface of the timing cover is provided with fourth reinforcing beads, a part of which is provided to the outer surface of the timing cover and another part of which is provided to the outer surface of the protrusion.

According to some embodiments of the utility model, the timing cover is an integrally formed structural member.

An engine according to an embodiment of the second aspect of the utility model includes: a cylinder; a crankcase disposed at a bottom of the cylinder; the crankshaft is arranged in the crankcase, and a wheel body for balancing weight is arranged at the shaft end of the crankshaft; the timing cover is arranged on the cylinder and the crankcase, and the wheel body is at least partially arranged in the wheel body accommodating groove.

According to a vehicle of an embodiment of a third aspect of the utility model, comprising: the engine of the above embodiment.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic illustration of an internal surface configuration of a timing cover of an engine;

FIG. 2 is a schematic illustration of a timing cover configuration of the engine;

FIG. 3 is a schematic view of the timing cover of the engine assembled with the crank pulley;

FIG. 4 is a schematic diagram of an external surface configuration of a timing cover of an engine.

Reference numerals:

10. a timing cover;

11. an outer surface; 12. an inner surface; 13. a protrusion; 14. a crankshaft; 15. a wheel body accommodating groove; 16. a wheel body; 17. reinforcing ribs; 18. a first reinforcing rib; 19. a second reinforcing rib; 20. a first side; 21. a second side; 22. a third reinforcing rib; 23. and a fourth reinforcing rib.

Detailed Description

Referring now to fig. 1-4, a timing cover 10 for an engine according to an embodiment of the present invention is described, and an engine having the timing cover 10 and a vehicle having the engine are also presented.

As shown in fig. 1 and 2, a timing cover 10 of an engine according to an embodiment of the first aspect of the present invention, the timing cover 10 has an outer surface 11 and an inner surface 12, and the inner surface 12 faces a crankshaft 14 of the engine. That is, the timing cover 10 is fixed to the side of the engine with the inner surface 12 facing the crankshaft 14 of the engine, so that the timing cover 10 can protect the engine timing chain system from foreign matter and oil leakage, and also reduce noise.

Wherein, the timing cover 10 is provided with a bulge 13 protruding towards the outside, and a wheel body receiving groove 15 with closed outside and open inside is formed in the bulge 13. That is to say, timing shroud 10 has cancelled original crank pulley mounting hole to set up the protruding 13 towards the outside, made timing shroud 10 wholly be totally enclosed structure, so set up, can effectively strengthen timing shroud 10 body mode, simultaneously, cancel original crank pulley mounting hole and bent axle oil blanket, can keep apart the combustion noise who comes from the engine better and pass outward, thereby effectively improve the NVH performance of engine.

Wherein, cancel the crankshaft oil seal, cancel the crankshaft pulley mounting hole of the shroud 10 of timing at the same time, can reduce the processing procedure of the shroud 10 of timing. The processing procedures are reduced. And, the wheel body accommodating groove 15 which is closed at the outer side and opened at the inner side is formed in the bulge 13, so that the peripheral moving parts of the engine can be arranged more compactly.

As shown in fig. 3, the wheel-receiving groove 15 on the inner side of the timing cover 10 is used to receive the wheel 16 at the end of the crankshaft. So, reasonable utilization the space of holding tank, will expose originally in the crank pulley wheel body 16 in the timing shroud 10 outside can place in the holding tank, reduced outside to crank pulley's damage.

Therefore, the timing cover 10 is provided with the bulge 13 with the closed outer side and the open inner side, the crankshaft wheel body 16 can be installed on the inner side of the timing cover 10, the mode of the timing cover 10 body can be effectively enhanced, the original crankshaft pulley installation hole and the crankshaft oil seal are eliminated, the combustion noise from the engine can be better isolated and transmitted outwards, the product cost is reduced, the processing procedures are reduced, and the arrangement of peripheral moving parts of the engine is more compact.

As shown in fig. 1-3, the wheel-receiving groove 15 is cylindrical. So set up, wheel body holding tank 15 can cooperate with the wheel body 16 that is cylindric bent axle head equally, conveniently rotates in wheel body 16 in wheel body holding tank 15, avoids wheel body 16 to take place the scraping with wheel body holding tank 15 when rotatory to and avoid wheel body 16 to drop because of receiving external force factor.

Furthermore, as shown in fig. 2 and 3, the depth of the wheel-receiving groove 15 is h, and h satisfies the relation: h is more than or equal to 20mm and less than or equal to 40 mm. The wheel body 16 of the crankshaft 14 can be reasonably arranged, and if the depth h of the wheel body accommodating groove 15 is more than 40mm, the wheel body accommodating groove 15 is easy to interfere with peripheral accessories of an engine, and waste of processing materials is caused; if the depth h of the wheel body accommodating groove 15 is less than 20mm, the wheel body 16 cannot be embedded into the accommodating groove to rotate in the wheel body accommodating groove 15 well, that is, the size of the wheel body 16 is limited, and the wheel body 16 cannot achieve a corresponding effect well during operation. Thus, the depth h of the wheel body receiving groove 15 is set to be 20-40mm, so that the wheel body 16 can well rotate in the wheel body receiving groove 15.

Moreover, the diameter of the wheel body receiving groove 15 is D, and D satisfies the relation: d is more than or equal to 100mm and less than or equal to 200 mm. With the arrangement, the wheel body 16 of the crankshaft 14 can be reasonably installed, so that the wheel body 16 can well rotate in the wheel body accommodating groove 15, and if the diameter of the wheel body accommodating groove 15 is too large, the wheel body accommodating groove 15 is easily interfered with peripheral accessories of an engine, and processing materials are wasted; if the diameter of the wheel-receiving slot 15 is too small, the gap between the wheel 16 and the wheel-receiving slot 15 is too small, so that the wheel 16 may not rotate well and may scrape against the wheel-receiving slot 15 during rotation. Thus, the diameter D of the wheel-receiving groove 15 is set to be between 100mm and 200mm, so that the wheel 16 can rotate in the wheel-receiving groove 15 well, and the waste of materials is avoided.

As shown in fig. 1, the inner surface 12 of the timing cover 10 is provided with a rib 17, and the rib 17 is disposed around the outer periphery of the wheel-receiving groove 15. So set up, can promote the structural strength of timing shroud 10 through strengthening rib 17, the vibration that the engine sent, timing shroud 10 can absorb through strengthening rib 17, avoids influencing the normal use of timing shroud 10. In addition, the provision of the ribs 17 on the inner surface 12 of the timing cover 10 may improve the integrity of the outer surface 11 of the timing cover 10 and prevent the ribs 17 from interfering with other structures of the engine.

As shown in fig. 1, the reinforcing rib 17 includes: and the first reinforcing rib 18 is arc-shaped, and the first reinforcing rib 18 is arranged around the periphery of the wheel body accommodating groove 15. That is to say, the first reinforcing rib 18 surrounds the periphery of the wheel body receiving groove 15, so as to improve the structural strength of the timing cover 10 and prevent the timing cover 10 from deforming. And, the first reinforcing bead 18 is provided in an arc shape, so that the arrangement of the first reinforcing bead 18 can be facilitated.

As shown in fig. 1, the rib 17 further includes: and second ribs 19 extending in the radial direction and having a straight line shape, the second ribs 19 being provided to intersect with the first ribs 18. That is, the first reinforcing rib 18 and the second reinforcing rib 19 are used in combination, which not only can enhance the strength and rigidity of the timing cover 10, but also can reduce the thickness and weight of the timing cover 10, and thus can improve the integrity of the timing cover 10. Meanwhile, the reinforcing ribs 17 play a good role in stabilizing the wheel body accommodating grooves 15, so that the wheel body accommodating grooves 15 are not easy to damage, and the overall service life of the timing cover 10 is prolonged.

Referring to fig. 1, the distance from the wheel-receiving cavity 15 to the first side 20 of the timing cover 10 is less than the distance from the wheel-receiving cavity 15 to the second side 21 of the timing cover 10. That is, the arc edge of one side of the wheel body receiving groove 15 is close to the first side 20 of the timing cover 10, and the arc edge of the other side of the wheel body receiving groove 15 has a certain distance from the second side 21 of the timing cover 10, so as to better match with the moving parts in the engine cylinder, and thus the overall usability of the timing cover 10 can be improved. Moreover, the arrangement has less structural change to the timing cover 10, and is convenient for modifying the existing engine.

The rib 17 is disposed between the wheel-receiving groove 15 and the second side 21 of the timing cover 10. Because the peculiar structure of engine for there is certain distance between wheel body holding tank 15 and the second side 21 of timing shroud 10, set up strengthening rib 17 between wheel body holding tank 15 and timing shroud 10 second side 21, can strengthen the peripheral intensity of wheel body holding tank 15, the better bulk strength of firm timing shroud 10 is difficult for suffering the destruction of engine exterior part.

Referring to fig. 1 and 2, the inner surface of the wheel body receiving groove 15 is provided with a plurality of third reinforcing ribs 22, and the plurality of third reinforcing ribs 22 are arranged to cross each other. So set up, can effectively strengthen the structural strength of wheel body holding tank 15, unexpected when wheel body 16 rotates drops, the internal surface of protection wheel body holding tank 15 that third strengthening rib 22 can be fine makes wheel body holding tank 15 be difficult to suffer the damage that comes from the rotation centripetal force of wheel body 16 and bring. In some embodiments, the third reinforcing ribs 22 may be disposed in an intersecting manner along different directions of the wheel body receiving groove 15, such as a radial direction, a non-radial direction, an axial direction, etc., so that the inner surface of the wheel body receiving groove 15 is a mesh structure, which effectively enhances the strength and rigidity of the wheel body receiving groove 15.

As shown in fig. 4, the outer surface 11 of the timing cover 10 is provided with fourth reinforcing beads 23, a part of the fourth reinforcing beads 23 is provided to the outer surface 11 of the timing cover 10, and another part is provided to the outer surface of the protrusion 13. That is, the fourth rib 23 is used in combination with the rib 17 provided on the inner surface 12 of the timing cover 10, which not only enhances the strength and rigidity of the timing cover 10, but also reduces the thickness of the timing cover 10, i.e., reduces the weight of the timing cover 10, thereby improving the integrity of the timing cover 10. In addition, the fourth beads 23 are partially disposed on the outer surface of the boss 13, so that the structural strength of the boss 13 can be enhanced, and the boss 13 is not easily damaged by external force from peripheral components of the engine.

Further, the timing cover 10 is an integrally molded structural member. In this manner, providing the timing cover 10 as an integrally formed structural member facilitates production of the timing cover 10 and may improve the integrity of the timing cover 10. In addition, the integrally formed timing cover 10 can reduce the processing procedures during assembly, thereby saving the assembly cost.

An engine according to an embodiment of the second aspect of the utility model includes: a cylinder, a crankcase, a crankshaft 14, and a timing cover 10, the crankcase being disposed at the bottom of the cylinder, the crankshaft 14 being disposed within the crankcase. The crankcase is used for mounting a crankshaft 14, the crankshaft 14 is the most important component in the engine, and the crankshaft 14 is used for bearing the force transmitted by the connecting rod, converting the force into torque and outputting the torque through the crankshaft 14 and driving other accessories on the engine to work.

And, the crankshaft shaft end is provided with a wheel body 16 for counterweight, wherein, the wheel body 16 for counterweight is used for balancing the rotation inertia force and the moment thereof generated by the connecting rod big end, the connecting rod journal, the crank and the like, so that the crankshaft 14 of the engine runs stably. In addition, the timing cover 10 is disposed on the cylinder and the crankcase, and the wheel body 16 is at least partially disposed in the wheel body receiving groove 15. In this way, the weighted wheel 16 can be accommodated in the wheel accommodating groove 15, so that the weighted wheel 16 can be well protected, and other structures of the engine can be protected.

According to a vehicle of an embodiment of a third aspect of the utility model, comprising: the engine of the above embodiment. Wherein, timing shroud 10 adopts totally closed structure, installs crank pulley in the inboard holding tank of timing shroud 10, effectively strengthens timing shroud 10 body mode, keeps apart the combustion noise of engine better, has improved the NVH performance of whole car greatly, effectively reduces the vehicle noise.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. The timing cover cap of the engine is characterized by comprising an outer surface and an inner surface, wherein the inner surface faces a crankshaft of the engine, the timing cover cap is provided with a protrusion protruding towards the outer side, a wheel body accommodating groove which is closed at the outer side and is opened at the inner side is formed in the protrusion, and the wheel body accommodating groove is used for accommodating a wheel body positioned at the shaft end of the crankshaft.

2. The timing cover for an engine of claim 1, wherein said wheel-receiving slot is cylindrical.

3. The timing cover of engine according to claim 1, wherein said wheel body receiving groove has a depth h, and h satisfies the relation: h is more than or equal to 20mm and less than or equal to 40 mm.

4. The timing cover for an engine according to claim 1, wherein said wheel-receiving groove has a diameter D that satisfies the relationship: d is more than or equal to 100mm and less than or equal to 200 mm.

5. The timing cover of engine according to claim 1, wherein an inner surface of said timing cover is provided with a rib, said rib being provided around an outer periphery of said wheel-receiving groove.

6. The timing cover of engine as set forth in claim 5, wherein said reinforcing rib includes: be curved first strengthening rib, first strengthening rib centers on the periphery setting of wheel body holding tank.

7. The timing cover for an engine according to claim 6, wherein said reinforcing rib further comprises: and the second reinforcing ribs extend along the radial direction and are linear, and the second reinforcing ribs and the first reinforcing ribs are arranged in a crossed manner.

8. The timing cover of engine according to claim 5, wherein a distance from said wheel receiving groove to a first side of said timing cover is less than a distance from said wheel receiving groove to a second side of said timing cover, said rib being disposed between said wheel receiving groove and said second side of said timing cover.

9. The timing cover for an engine according to claim 1, wherein said wheel body receiving groove is provided at an inner surface thereof with a plurality of third ribs, said plurality of third ribs being arranged to intersect with each other.

10. The timing cover of engine according to claim 1, characterized in that an outer surface of said timing cover is provided with fourth reinforcing beads, a part of said fourth reinforcing beads being provided on an outer surface of said timing cover and another part being provided on an outer surface of said protrusion.

11. The timing cover of an engine according to claim 1, characterized in that said timing cover is an integrally formed structural member.

12. An engine, comprising:

a cylinder;

a crankcase disposed at a bottom of the cylinder;

the crankshaft is arranged in the crankcase, and a wheel body for balancing weight is arranged at the shaft end of the crankshaft;

the timing cover for an engine of any of claims 1-11, disposed between the cylinder and the crankcase, the wheel being at least partially disposed within the wheel-receiving pocket.

13. A vehicle, characterized by comprising: the engine of claim 12.

Images