Timing cover and engine

Abstract

The utility model discloses a timing cover cap and an engine, the timing cover cap is provided with a connecting part and a suspension mounting part, the connecting part is used for being connected with a cylinder body and / or a cylinder cover, and the suspension mounting part is used for being connected with a vehicle body through a suspension structure; wherein the timing cover cap is provided with at least one suspension reinforcing structure on the periphery of the suspension mounting part, and the suspension reinforcing structure protrudes out of the inner side face or the outer side face of the timing cover cap. According to the timing cover cap, the structural strength of the suspension installation part is high, the connection strength of the timing cover cap and a suspension structure can be improved, the inherent frequency of the suspension installation part is improved, resonance of the suspension installation part is restrained, the vibration isolation performance of a whole vehicle is improved, vibration and noise transmitted to a cab can be reduced, and the driving comfort of a user is improved. And the number of parts is reduced, the machining and mounting difficulty can be reduced, the cost is reduced, the mounting space of an engine is saved, and miniaturization and light weight of the engine are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine, especially a timing cover and an engine with the timing cover. BACKGROUND

[0002] As the main excitation source of vehicle vibration and noise, the vibration and noise level of the engine directly affects the vibration and noise level of the whole vehicle. Long-term engine vibration and noise research shows that the timing cover and other thin-walled parts of the engine are often the main radiation source, and the radiation noise contribution generally accounts for 40%-60% of the total radiation noise of the engine. The existing timing cover is a thin-walled part with a relatively large mounting surface. As a larger noise radiation source, the large plane structure directly affects the NVH performance of the engine.

[0003] The existing engine timing cover and the driven side suspension bracket are arranged separately, which has many parts, many processing procedures, large installation space, high cost, weak rigidity of the installation position of the suspension bracket, reduced vibration isolation performance, transmitted noise to the driver's cabin, affected the driving comfort of the consumer, and room for improvement. SUMMARY

[0004] The utility model aims at solving one of the technical problems in the prior art. To this end, the utility model provides a timing cover. The suspension mounting part of the timing cover has high structural strength, which can improve the connection strength of the timing cover and the suspension structure, improve the natural frequency of the suspension mounting part, suppress the resonance of the suspension mounting part, improve the vibration isolation performance of the whole vehicle, reduce the transmission of vibration and noise to the driver's cabin, and improve the driving comfort of the user. In addition, the number of parts is small, and the installation is convenient.

[0005] According to the timing cover of the utility model embodiment, the timing cover is provided with a connecting part and a suspension mounting part. The connecting part is used for being connected with a cylinder body and / or a cylinder cover. The suspension mounting part is used for being connected with a vehicle body through a suspension structure. The timing cover is provided with at least one suspension reinforcing structure around the suspension mounting part. The suspension reinforcing structure protrudes from the inner side or the outer side of the timing cover.

[0006] According to the timing cover of the utility model embodiment, the suspension mounting part is integrally arranged on the timing cover, which can improve the connection strength of the suspension mounting part and the timing cover. In addition, the timing cover is provided with at least one suspension reinforcing structure at the suspension mounting part, which can effectively strengthen the structural strength of the suspension mounting part, thereby improving the connection strength of the timing cover and the suspension structure, improving the natural frequency of the suspension mounting part, suppressing the resonance of the suspension mounting part, improving the vibration isolation performance of the whole vehicle, reducing the transmission of vibration and noise to the driver's cabin, and improving the driving comfort of the user. In addition, the number of parts is reduced, which can reduce the processing and installation difficulty, reduce the cost, save the installation space of the engine, and facilitate the miniaturization and light weight of the engine.

[0007] According to the timing cover of some embodiments of the utility model, the suspension reinforcing structure includes a first reinforcing structure, the first reinforcing structure is arranged protruding on the outer side of the timing cover;

[0008] And / or, the suspension reinforcing structure includes a second reinforcing structure, the second reinforcing structure is arranged protruding on the inner side of the timing cover.

[0009] According to the timing cover of some embodiments of the utility model, the first reinforcing structure includes at least one first reinforcing rib, the first reinforcing rib is configured to extend from the suspension mounting portion to the direction away from the suspension mounting portion on the outer side of the timing cover.

[0010] According to the timing cover of some embodiments of the utility model, the connecting portion includes a first connecting hole, the first connecting hole is used to be connected with the cylinder cover, the second reinforcing structure includes at least one second reinforcing rib, the second reinforcing rib is configured to extend from the first connecting hole to the direction away from the first connecting hole on the inner side of the timing cover.

[0011] According to the timing cover of some embodiments of the utility model, the suspension mounting portion includes at least two parts, and the first connecting hole is located between the two parts of the suspension mounting portion.

[0012] According to the timing cover of some embodiments of the utility model, the connecting portion includes at least one second connecting hole, the second connecting hole is used to be connected with the cylinder body, the second connecting hole is distributed with the suspension mounting portion, and the inner side of the timing cover is provided with a third reinforcing structure at the second connecting hole.

[0013] According to the timing cover of some embodiments of the utility model, the third reinforcing structure includes a groove portion, the second connecting hole penetrates the groove portion, and the groove portion is configured to be recessed inward on the outer side of the timing cover and protruded on the inner side of the timing cover.

[0014] And / or, the third reinforcing structure includes at least one third reinforcing rib, the third reinforcing rib is configured to extend from the second connecting hole to the direction away from the second connecting hole on the inner side of the timing cover.

[0015] According to the timing cover of some embodiments of the utility model, the timing cover is further provided with an intermediate reinforcing structure between the suspension mounting portion and the second connecting hole.

[0016] Among them, the intermediate reinforcing structure includes a center reinforcing portion and a plurality of intermediate reinforcing ribs, and a plurality of intermediate reinforcing ribs are distributed radially on the outer periphery of the center reinforcing portion.

[0017] According to the timing cover of some embodiments of the utility model, the suspension installation part is equipped with a plurality of hollowed-out slots open to the inside;

[0018] And / or, the suspension installation part is equipped with a weight-reducing hole;

[0019] And / or, the timing cover is equipped with two controller installation holes, the two controller installation holes are distributed at intervals, and the timing cover is equipped with at least one horizontal reinforcing rib in the area between the two controller installation holes.

[0020] The utility model also proposes an engine.

[0021] According to the engine of the utility model embodiment, including the timing cover of any one embodiment above.

[0022] The engine and the timing cover above have the same advantages as the prior art, which will not be repeated here.

[0023] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0024] The above and / or additional aspects and advantages of the utility model will become apparent and easily understood from the description of the embodiments combined with the following drawings, in which:

[0025] Figure 1 It is the structure diagram of the timing cover according to the utility model embodiment Figure 1 ;

[0026] Figure 2 It is the structure diagram of the timing cover according to the utility model embodiment Figure 2 ;

[0027] Figure 3 It is the structure diagram of the timing cover according to the utility model embodiment Figure 3 ;

[0028] Figure 4 It is the structure diagram of the timing cover according to the utility model embodiment Figure 4 ;

[0029] Figure 5 It is the front view of the timing cover according to the utility model embodiment;

[0030] Figure 6 It is the rear view of the timing cover according to the utility model embodiment;

[0031] Figure 7 It is the sectional view of the timing cover according to the utility model embodiment.

[0032] Reference signs:

[0033] Timing cover 100,

[0034] Connecting portion 1, first connecting hole 11, second connecting hole 12, suspension mounting portion 2, hollow groove 21, weight-reducing hole 22, positioning hole 23, suspension connecting hole 24, suspension reinforcing structure 3, first reinforcing structure 31, first reinforcing rib 311, second reinforcing structure 32, second reinforcing rib 321, third reinforcing structure 4, groove portion 41, third reinforcing rib 42, fourth reinforcing rib 43, intermediate reinforcing structure 5, central reinforcing portion 51, intermediate reinforcing rib 52, controller mounting hole 6, horizontal reinforcing rib 7, crankshaft hole 8. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and cannot be understood as limiting the present application.

[0036] In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0037] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] Unless otherwise specified, the front-rear direction in the present application is the longitudinal direction of the vehicle, i.e. the X direction; the left-right direction is the lateral direction of the vehicle, i.e. the Y direction; and the up-down direction is the vertical direction of the vehicle, i.e. the Z direction.

[0039] Reference will be made to Figures 1-7 The timing cover 100 according to the embodiments of the present application is described below. By integrally arranging the suspension mounting portion 2 on the timing cover 100, the connection strength of the suspension mounting portion 2 and the timing cover 100 can be improved. The timing cover 100 is provided with at least one suspension reinforcing structure 3 at the suspension mounting portion 2, which can effectively strengthen the structural strength of the suspension mounting portion 2, thereby improving the connection strength of the timing cover 100 and the suspension structure, improving the natural frequency of the suspension mounting portion 2, suppressing the resonance of the suspension mounting portion 2, improving the vibration isolation performance of the whole vehicle, reducing the transmission of vibration and noise to the cab, and improving the driving comfort of the user.

[0040] As Figures 1-7 shown, the timing cover 100 according to an embodiment of the present application is provided with a connecting portion 1 and a suspension mounting portion 2. The connecting portion 1 is used to be connected with the cylinder block and / or the cylinder head. The suspension mounting portion 2 is used to be connected with the vehicle body through a suspension structure.

[0041] Specifically, the timing cover 100 is provided with the connecting portion 1. The connecting portion 1 can be connected with the cylinder block, so that the timing cover 100 can be fixedly connected with the cylinder block. The connecting portion 1 can also be connected with the cylinder head, so that the timing cover 100 can be fixedly connected with the cylinder head. The timing cover 100 and the cylinder head and / or the cylinder block can be detachably connected through bolts or other fasteners, which is convenient and reliable.

[0042] The timing cover 100 is also provided with the suspension mounting portion 2. For example, the suspension mounting portion 2 is arranged on the outer side of the timing cover 100. The suspension mounting portion 2 can be mounted with the suspension structure, so that the suspension structure can be connected with the timing cover 100 on the outer side of the timing cover 100. The suspension structure is connected with the vehicle body, so that the timing cover 100 can be connected with the vehicle body. The inner side of the timing cover 100 is connected with the cylinder block and / or the cylinder head, so that the engine can be connected with the vehicle body. The suspension structure can support the weight of the engine, so that the engine can be stably mounted on the vehicle body, ensuring the reliability of the mounting of the engine and the vehicle body. The engine is the main source of noise. Through the suspension structure, these vibration noises and road excitations can be isolated and absorbed, thereby reducing the transmission of vibration and noise to the interior of the vehicle, improving the comfort of riding, and reducing the fatigue damage of other parts caused by excessive vibration.

[0043] The timing cover 100 is also provided with the suspension mounting portion 2. For example, the suspension mounting portion 2 is arranged on the outer side of the timing cover 100. The suspension mounting portion 2 can be mounted with the suspension structure, so that the suspension structure can be connected with the timing cover 100 on the outer side of the timing cover 100. The suspension structure is connected with the vehicle body, so that the timing cover 100 can be connected with the vehicle body. The inner side of the timing cover 100 is connected with the cylinder block and / or the cylinder head, so that the engine can be connected with the vehicle body. The suspension structure can support the weight of the engine, so that the engine can be stably mounted on the vehicle body, ensuring the reliability of the mounting of the engine and the vehicle body. The engine is the main source of noise. Through the suspension structure, these vibration noises and road excitations can be isolated and absorbed, thereby reducing the transmission of vibration and noise to the interior of the vehicle, improving the comfort of riding, and reducing the fatigue damage of other parts caused by excessive vibration.

[0044] Specifically, the suspension reinforcing structure 3 is arranged on the timing cover 100 and surrounds the suspension mounting portion 2, and can effectively reinforce the strength of the suspension mounting portion 2. The suspension reinforcing structure 3 can be arranged to protrude inwardly from the inner side of the timing cover 100, to reinforce the inner side of the timing cover 100 and the inner side of the suspension mounting portion 2, or the suspension reinforcing structure 3 can be arranged to protrude outwardly from the outer side of the timing cover 100, to reinforce the outer side of the timing cover 100 and the outer side of the suspension mounting portion 2, or the suspension reinforcing structure 3 can be arranged to protrude from both the inner side and the outer side of the timing cover 100, to simultaneously reinforce the inner and outer sides of the timing cover 100 and the suspension mounting portion 2, and the arrangement mode is various and can be flexibly selected according to actual conditions.

[0045] The suspension reinforcing structure 3 can be one, two, three, or the like.

[0046] Further, the suspension mounting portion 2 and the timing cover 100 are arranged in an integrated structure, which can reduce the number of parts of the timing cover 100 and the suspension structure, reduce the machining process of the parts, reduce the connection steps of the suspension structure and the timing cover 100, shorten the installation time, occupy less space during installation, and have lower cost.

[0047] According to the timing cover 100 of the embodiment of the utility model, the suspension mounting portion 2 is arranged on the timing cover 100, which can improve the connection strength of the suspension mounting portion 2 and the timing cover 100, and the timing cover 100 is provided with at least one suspension reinforcing structure 3 at the suspension mounting portion 2, which can effectively reinforce the structural strength of the suspension mounting portion 2, reduce the structural damage of the suspension mounting portion 2, further improve the connection strength of the timing cover 100 and the suspension structure, improve the inherent frequency of the suspension mounting portion 2, ensure that the resonance of the suspension mounting portion 2 is reduced within 500Hz, improve the vibration isolation performance of the whole vehicle, reduce the transmission of vibration and noise to the cab, and improve the driving comfort of the user. The number of parts is reduced, the machining and installation difficulty is reduced, the cost is reduced, the installation space of the engine is saved, and the engine is miniaturized and lightened.

[0048] In some embodiments, the suspension reinforcing structure 3 includes a first reinforcing structure 31, and the first reinforcing structure 31 is arranged to protrude outwardly from the outer side of the timing cover 100.

[0049] Specifically, the first reinforcing structure 31 is arranged on the outer side of the timing cover 100, and as Figure 1As shown, the first reinforcing structure 31 protrudes outwardly on the outer side of the timing cover 100, and can form a reinforcing structure on the outer surface of the timing cover 100 to structurally reinforce the outer side of the timing cover 100. The first reinforcing structure 31 is distributed around the suspension mounting portion 2, and can structurally reinforce the suspension mounting portion 2 to increase the natural frequency of the suspension mounting portion 2. Thus, when an external vibration source is transmitted to the suspension mounting portion 2, resonance between the external vibration source and the suspension mounting portion 2 can be reduced, and transmission of vibration noise can be effectively reduced to achieve a good vibration isolation effect. In addition, by reinforcing the structure on the outer side of the suspension mounting portion 2, damage to the suspension mounting portion 2 can be reduced to prolong the service life of the suspension mounting portion 2.

[0050] In some embodiments, the suspension reinforcing structure 3 includes a second reinforcing structure 32, which protrudes on the inner side of the timing cover 100.

[0051] Specifically, the second reinforcing structure 32 is arranged on the inner side of the timing cover 100, and as shown, Figure 3 the second reinforcing structure 32 protrudes inwardly on the inner side of the timing cover 100, and can form a reinforcing structure on the inner surface of the timing cover 100 to structurally reinforce the inner side of the timing cover 100. The second reinforcing structure 32 is distributed around the suspension mounting portion 2, and can structurally reinforce the suspension mounting portion 2 to increase the natural frequency of the suspension mounting portion 2. Thus, when an internal or external vibration source of the engine is transmitted to the suspension mounting portion 2, resonance between the internal or external vibration source of the engine and the suspension mounting portion 2 can be reduced, and transmission of vibration noise can be effectively reduced to achieve a good vibration isolation effect. In addition, by reinforcing the structure on the inner side of the suspension mounting portion 2, damage to the suspension mounting portion 2 can be reduced to prolong the service life of the suspension mounting portion 2.

[0052] In some embodiments, the first reinforcing structure 31 includes at least one first reinforcing rib 311, which is configured to extend from the suspension mounting portion 2 on the outer side of the timing cover 100 in a direction away from the suspension mounting portion 2.

[0053] Specifically, the first reinforcing rib 311 is configured as an inclined structure, and can be arranged on the outer periphery of the suspension mounting portion 2. The first reinforcing rib 311 extends from the suspension mounting portion 2 in a direction away therefrom, and extends to the outer side of the timing cover 100 to support the timing cover 100 and the suspension mounting portion 2, respectively, and structurally reinforce the timing cover 100 and the suspension mounting portion 2 to increase the structural strength of the suspension mounting portion 2.

[0054] In some embodiments, the first reinforcing structure 31 includes at least one first reinforcing rib 311, which is configured to extend from the suspension mounting portion 2 on the outer side of the timing cover 100 in a direction away from the suspension mounting portion 2. Figure 1 , Figure 2 and Figure 4As shown, the suspension mounting portion 2 can be configured as a square structure, and the first reinforcing rib 311 can be one, two, three, four, etc. A plurality of first reinforcing ribs 311 can be distributed on different sides of the suspension mounting portion 2 to respectively reinforce different sides of the suspension mounting portion 2. In the embodiment, as shown in Figure 1 and Figure 5 As shown, the first reinforcing rib 311 is provided in two, and the two first reinforcing ribs 311 are respectively located on the left side and the lower side of the suspension mounting portion 2. The first reinforcing rib 311 on the left side is configured to extend leftward from the left side of the suspension mounting portion 2 to connect with the outer side of the timing cover 100, so as to reinforce the left side of the suspension mounting portion 2. The second reinforcing rib 321 on the lower side is configured to extend downward from the lower side of the suspension mounting portion 2 to connect with the outer side of the timing cover 100, so as to reinforce the lower side of the suspension mounting portion 2. In this way, the structural strength of the suspension mounting portion 2 can be effectively improved, the natural frequency of the suspension mounting portion 2 can be improved, the resonance between the suspension mounting portion 2 and the vibration source can be suppressed, and the overall vehicle vibration isolation performance can be improved.

[0055] It should be noted that the second reinforcing rib 321 on the lower side is configured as an inclined structure, and the inclination angle between the second reinforcing rib 321 on the lower side and the outer side of the timing cover 100 can be 35°, 35.5°, 36°, 36.5°, 37°, etc.

[0056] In some embodiments, the connecting portion 1 includes a first connecting hole 11 for connecting with the cylinder head, and the second reinforcing structure 32 includes at least one second reinforcing rib 321 configured to extend from the first connecting hole 11 on the inner side of the timing cover 100 in a direction away from the first connecting hole 11.

[0057] Specifically, the first connecting hole 11 is provided on the upper side of the timing cover 100, and the first connecting hole 11 is provided in a penetrating manner along the inner-outer direction of the timing cover 100. The first connecting hole 11 can be configured as a circular hole, and the first connecting hole 11 is located at the middle of the timing cover 100 in the width direction. Correspondingly, the cylinder head is provided with a mounting position, and the upper middle region of the timing cover 100 can be connected with the cylinder head through the first connecting hole 11. The timing cover 100 and the cylinder head can be connected by bolts, so as to improve the connection strength and facilitate assembly.

[0058] As shown in Figure 3 and Figure 6As shown, the second reinforcing ribs 321 are located on the inner side of the timing cover 100. The second reinforcing ribs 321 can be arranged on the outer periphery of the first connecting hole 11 and extend away from the first connecting hole 11. The second reinforcing ribs 321 can be in the form of strips and protrude inwardly on the inner side of the timing cover 100. The second reinforcing ribs 321 can support the timing cover 100 and the first connecting hole 11 to effectively improve the structural strength of the first connecting hole 11 and the strength of the inner side of the timing cover 100.

[0059] The second reinforcing ribs 321 can be one, two, three, four, five, six, seven, eight, etc. The second reinforcing ribs 321 are evenly distributed along the circumference of the first connecting hole 11 to strengthen multiple positions of the first connecting hole 11 and improve the connection strength of the timing cover 100 and the cylinder head. In the embodiment, as shown, Figure 6 The second reinforcing ribs 321 can be arranged in a radial form around the first connecting hole 11. One second reinforcing rib 321 extends in the up-down direction and is arranged at the center of the first connecting hole 11. Four second reinforcing ribs 321 are arranged on the left and right sides of the first connecting hole 11. There are a total of ten second reinforcing ribs 321 around the first connecting hole 11. The second reinforcing ribs 321 are approximately symmetric about the vertical center line of the first connecting hole 11. The second reinforcing ribs 321 can not be arranged in a symmetric form. The arrangement of the second reinforcing ribs 321 is not limited and can be selected flexibly.

[0060] Therefore, the arrangement of the first connecting hole 11 and the second reinforcing ribs 321 can improve the structural strength of the timing cover 100 around the first connecting hole 11, eliminate the large plane mode of the upper side of the timing cover 100, and effectively reduce the noise radiation of the upper side of the timing cover 100.

[0061] In some embodiments, the overhanging mounting portion 2 includes at least two parts, and the first connecting hole 11 is located between the two parts of the overhanging mounting portion 2.

[0062] Specifically, the first connecting hole 11 is arranged between the two parts of the overhanging mounting portion 2. In this way, the second reinforcing ribs 321 distributed on the outer periphery of the first connecting hole 11 can be arranged opposite to the two parts of the overhanging mounting portion 2 in the inner-outer direction. The overhanging mounting portion 2 can be structurally strengthened.

[0063] In the embodiment, as shown, Figure 1 and Figure 5As shown, in the left-right direction of the timing cover 100, the suspension mounting portion 2 includes two parts, the first connecting hole 11 is arranged between the two parts of the suspension mounting portion 2, and the first connecting hole 11 is located on the upper side of the suspension mounting portion 2, which can avoid interference with the suspension mounting portion 2, and the timing cover 100 is provided with a plurality of second reinforcing ribs 321 on the opposite side of the suspension mounting portion 2, which can support the inner side of the suspension mounting portion 2 and improve the structural strength of the suspension mounting portion 2.

[0064] Therefore, by improving the structural strength of the suspension mounting portion 2, the modal of the suspension mounting portion 2 is greater than 500Hz, the vibration is reduced, the large plane modal of the upper side of the timing cover 100 is eliminated, the noise radiation of the surface of the upper side of the timing cover 100 is reduced, the vibration isolation characteristics of the whole vehicle are improved, and the support strength of the suspension mounting portion 2 to the suspension structure is increased, so that the fatigue of the suspension structure is improved.

[0065] As shown in Figure 1 and Figure 5 As shown, the suspension mounting portion 2 can be configured as an inclined structure, the suspension mounting portion 2 is inclined downward from left to right, and forms an inclined angle with the horizontal direction, which can be 6°, 7°, 8°, etc. In this way, compared with the straight structure, the inclined structure can increase the overall length of the suspension mounting portion 2, so as to increase the structural strength of the suspension mounting portion 2, but the inclined structure can reduce the setting area of the suspension mounting portion 2, that is, the weight of the suspension mounting portion 2 is reduced, which meets the lightweight design requirement.

[0066] In some embodiments, the connecting portion 1 includes at least one second connecting hole 12, the second connecting hole 12 is used for connecting with the cylinder block, the second connecting hole 12 is distributed at intervals with the suspension mounting portion 2, and the inner side of the timing cover 100 is provided with a third reinforcing structure 4 at the second connecting hole 12.

[0067] Specifically, the at least one second connecting hole 12 can be arranged in the middle region and / or the lower region of the timing cover 100, and is distributed at intervals along the up-down direction of the timing cover 100 with the suspension mounting portion 2, and the second connecting hole 12 is arranged penetratingly along the inner-outer direction of the timing cover 100. Wherein, the second connecting hole 12 can be configured as a circular hole, and the second connecting hole 12 is located in the middle of the width direction of the timing cover 100, and the cylinder block is provided with a mounting position, so that the middle region and / or the lower region of the timing cover 100 can be connected with the cylinder block through the second connecting hole 12. Wherein, the timing cover 100 and the cylinder block can be connected by bolts, which can improve the connection strength and facilitate assembly.

[0068] As shown in Figure 6As shown, the third reinforcing structure 4 is located on the inner side of the timing cover 100, and the third reinforcing structure 4 can be arranged on the outer periphery of the second connecting hole 12, and the third reinforcing structure 4 protrudes inwardly on the inner side of the timing cover 100, and can support between the timing cover 100 and the second connecting hole 12, so as to effectively improve the structural strength of the second connecting hole 12 and the strength of the inner side of the timing cover 100.

[0069] Therefore, the structural strength of the second connecting hole 12 and the timing cover 100 around the second connecting hole 12 can be improved, the large plane mode of the middle region and / or the lower region of the timing cover 100 can be eliminated, and in combination with the second reinforcing rib 321 arranged at the position opposite to the first connecting hole 11 and the suspension mounting portion 2 on the inner side of the timing cover 100, the noise radiation of the upper region, the middle region and / or the lower region of the timing cover 100 can be effectively reduced, so as to improve the overall vibration isolation performance of the timing cover 100.

[0070] In some embodiments, the third reinforcing structure 4 comprises a groove portion 41, and the second connecting hole 12 penetrates through the groove portion 41, and the groove portion 41 is configured to be recessed inwardly on the outer side of the timing cover 100 and protrude on the inner side of the timing cover 100.

[0071] Specifically, as shown in Figure 5 and Figure 6 The third reinforcing structure 4 comprises a groove portion 41, and the groove portion 41 is recessed inwardly on the outer side of the timing cover 100, that is, the inner side of the timing cover 100 protrudes at the groove portion 41, wherein the groove portion 41 is located in the middle region of the timing cover 100, and the structural strength of the middle region of the timing cover 100 can be improved. And the second connecting hole 12 penetrates through the groove portion 41 along the inner-outer direction of the timing cover 100, so that the timing cover 100 can be connected with the cylinder body through the second connecting hole 12.

[0072] And the groove portion 41 is located on the lower side of the suspension mounting portion 2, the groove portion 41 extends along the up-down direction of the timing cover 100, and the groove portion 41 can be configured as an inverted triangular shape, and the upper end of the groove portion 41 is connected with the first reinforcing rib 311 located on the lower side of the suspension mounting portion 2, so that the structural strength of the timing cover 100 can be simultaneously improved by the first reinforcing rib 311 and the groove portion 41.

[0073] In other embodiments, the third reinforcing structure 4 comprises at least one third reinforcing rib 42, and the third reinforcing rib 42 is configured to extend from the second connecting hole 12 to a direction away from the second connecting hole 12 on the inner side of the timing cover 100.

[0074] Among them, as shown in Figure 3 and Figure 6As shown, the third reinforcing rib 42 is located on the inner side of the timing cover 100, and the third reinforcing rib 42 can be arranged on the outer periphery of the second connecting hole 12 and extends from the second connecting hole 12 in a direction away from it, and the third reinforcing rib 42 can be formed in a strip shape and protrudes inward on the inner side of the timing cover 100, and can support between the timing cover 100 and the second connecting hole 12 to effectively improve the structural strength at the second connecting hole 12, and can improve the strength of the inner side of the timing cover 100.

[0075] The third reinforcing rib 42 can be one, two, three, four, five, six, seven, eight, etc., and the plurality of third reinforcing ribs 42 are uniformly distributed along the circumference of the second connecting hole 12 to respectively strengthen the circumferential positions of the second connecting hole 12, which can improve the connection strength of the timing cover 100 and the cylinder block. In the embodiment, as shown in Figure 6 The plurality of third reinforcing ribs 42 can be configured in a radial form, and the plurality of third reinforcing ribs 42 are formed in a rice-shaped structure which is approximately symmetrical in the width direction of the timing cover 100, which is simple and convenient to process. The plurality of third reinforcing ribs 42 can not be arranged in a symmetrical structure, and the arrangement manner is not limited and can be flexibly selected.

[0076] Therefore, through the above arrangement, the structural strength of the second connecting hole 12 and the timing cover 100 around the second connecting hole 12 can be improved, and the large plane modal of the upper side region of the timing cover 100 can be eliminated, and the noise radiation of the lower side region of the timing cover 100 can be effectively reduced.

[0077] The second connecting hole 12 is two, and the two second connecting holes 12 are distributed in the up-down direction of the timing cover and are spaced apart, and the two second connecting holes 12 are respectively used to connect the timing cover 100 and the cylinder block. The outer periphery of the second connecting hole 12 on the upper side is provided with at least one third reinforcing rib 42, and the outer periphery of the second connecting hole 12 on the lower side is also provided with at least one fourth reinforcing rib 43, and the fourth reinforcing rib 43 is located on the inner side of the timing cover 100, and the fourth reinforcing rib 43 can be one, two, three, four, etc., as shown in Figure 6 The fourth reinforcing rib 43 is five, and the five fourth reinforcing ribs 43 are distributed in a radial form around the second connecting hole 12 on the lower side, which can strengthen the rigidity of the lower side region of the timing cover 100, improve the local surface vibration modal frequency of the timing cover 100, and improve the overall vibration noise attenuation. At the same time, the plurality of fourth reinforcing ribs 43 can divide the inner space of the timing cover 100, avoid the noise of the timing gear being amplified, and reduce the noise transmission to the outside.

[0078] In some embodiments, the timing cover 100 is also provided with an intermediate reinforcing structure 5 between the suspension mounting portion 2 and the second connecting hole 12, which can reinforce the structure of the timing cover 100 between the suspension mounting portion 2 and the second connecting hole 12. The intermediate reinforcing structure 5 includes a central reinforcing portion 51 and a plurality of intermediate reinforcing ribs 52, which are radially distributed on the outer periphery of the central reinforcing portion 51.

[0079] Specifically, as shown in Figure 6 , the intermediate reinforcing structure 5 is located on the inner side of the timing cover 100, i.e. the central reinforcing portion 51 and the intermediate reinforcing ribs 52 are arranged on the inner side of the timing cover 100, the central reinforcing portion 51 protrudes inwardly on the inner side of the timing cover 100, and the central reinforcing portion 51 can be configured as a cylindrical structure, the intermediate reinforcing ribs 52 are configured to extend from the central reinforcing portion 51 on the inner side of the timing cover 100 in a direction away from the central reinforcing portion 51, and the plurality of intermediate reinforcing ribs 52 are distributed around the central reinforcing portion 51, radially distributed, wherein one of the intermediate reinforcing ribs 52 extends in the up-down direction and penetrates the central reinforcing portion 51, forming a "f" shaped reinforcing structure, which can make the structure of the entire intermediate reinforcing rib 52 stable and reliable.

[0080] The intermediate reinforcing ribs 52 can be two, three, four, etc. In this embodiment, one intermediate reinforcing rib 52 penetrating the central reinforcing portion 51 is distributed at the center line of the central reinforcing portion 51, and three intermediate reinforcing ribs 52 are arranged on the left and right sides of the central reinforcing portion 51 respectively, and the inner side of the timing cover 100 is divided into smaller spaces by the eight intermediate reinforcing ribs 52 and the central reinforcing portion 51, which can avoid the amplification of sound like a drum, thereby reducing noise radiation.

[0081] And as shown in Figure 6 , the second reinforcing rib 321, the intermediate reinforcing rib 52 and the third reinforcing rib 42 distributed in the middle of the timing cover 100 form a straight line, connecting the first connecting hole 11 and the two second connecting holes 12 respectively, to improve the strength of the first connecting hole 11 and the two second connecting holes 12 and the strength of the timing cover 100. And the timing cover 100 is provided with a crank hole 8 on the lower side of the second connecting hole 12 on the lower side, for the passage of the crankshaft, and the fourth reinforcing rib 43 can also reinforce the structure of the timing cover 100 near the crank hole 8, which can improve the structural strength of the lower side area of the timing cover 100.

[0082] In some embodiments, the suspension mounting portion 2 is provided with a plurality of hollow grooves 21 open to the inner side, specifically, as shown in Figure 7As shown, the plurality of hollow grooves 21 extend in the inner-outer direction and open in the direction away from the suspension mounting portion 2. The plurality of hollow grooves 21 can be distributed at intervals at the first connecting hole 11 and the suspension mounting portion 2, and the suspension mounting portion 2 protrudes outward by a certain height from the surface of the timing cover 100. By arranging the plurality of hollow grooves 21, the weight of the suspension mounting portion 2 can be reduced under the condition that the structural strength of the suspension mounting portion 2 and the timing cover 100 is met, so that the weight of the entire timing cover 100 can be reduced, and the structure is light in weight and low in cost.

[0083] In other embodiments, the suspension mounting portion 2 is provided with a weight-reducing hole 22 for reducing weight. The weight-reducing hole 22 can be configured as a circular hole, a strip-shaped hole, or any other shape of groove or hole. Specifically, as shown in Figure 1 and Figure 5 The weight-reducing hole 22 is located at the lower side of the suspension mounting portion 2. The upper side of the suspension mounting portion 2 is provided with a positioning hole 23 and a plurality of suspension connecting holes 24, so that the suspension structure can be mounted to the suspension mounting portion 2. By arranging the weight-reducing hole 22, the weight of the suspension mounting portion 2 can be reduced without interfering with the positioning hole 23 and the suspension connecting holes 24, so that the mounting of the suspension structure to the suspension mounting portion 2 is not affected, and the weight-reducing hole 22 does not reduce the structural strength of the suspension mounting portion 2, so as to ensure the mounting reliability of the suspension structure.

[0084] The positioning hole 23 is used for positioning the suspension structure to the suspension mounting portion 2, and the plurality of suspension connecting holes 24 are used for connecting the suspension structure to the suspension mounting portion 2. The suspension structure can be positioned to the suspension mounting portion 2 in advance through the positioning hole 23, and then the suspension structure and the suspension mounting portion 2 are tightened through a plurality of bolts, so that the mounting reliability of the suspension structure and the suspension mounting portion 2 can be ensured, the position of the suspension structure will not be skewed, the installation precision of the two is improved, and the installation difficulty and cost are reduced.

[0085] In other embodiments, the timing cover 100 is provided with two controller mounting holes 6 distributed at intervals. The timing cover 100 is provided with at least one horizontal reinforcing rib 7 in the region between the two controller mounting holes 6.

[0086] Specifically, as shown in Figures 1-6As shown in the drawings, two controller mounting holes 6 are arranged on the top of the timing cover 100, and the two controller mounting holes 6 are distributed in the width direction of the timing cover 100, wherein the two controller mounting holes are respectively used for mounting an intake VVT solenoid valve and an exhaust VVT solenoid valve, and the intake VVT solenoid valve and the exhaust VVT solenoid valve can be connected to the two controller mounting holes 6 through three bolts respectively. The intake VVT solenoid valve can control the VVT mechanism of the intake valve to change the valve distribution of the intake valve, and the exhaust VVT solenoid valve can control the VVT mechanism of the exhaust valve to change the valve distribution of the exhaust valve, so as to realize the adjustment of the intake and the exhaust respectively.

[0087] At least one horizontal reinforcing rib 7 is arranged between the two controller mounting holes 6, and the horizontal reinforcing rib 7 can improve the rigidity of the timing cover 100 at the positions of the two controller mounting holes 6, that is, the local modal frequency of the timing cover 100 can be improved, so that the timing cover 100 can avoid the excitation frequency (1.4f) of the two VVT solenoid valves and prevent resonance noise from being too large. In addition, the resonance can be avoided to affect the two VVT solenoid valves, and the working reliability of the two VVT solenoid valves can be ensured.

[0088] The horizontal reinforcing rib 7 can be one, two, three or the like. Figure 1 Figure 5 And Figure 6 As shown in the drawings, the horizontal reinforcing rib 7 is two, the two horizontal reinforcing ribs 7 extend along the width direction of the timing cover 100, and are distributed in the up-down direction of the timing cover 100. The two horizontal reinforcing ribs 7 are recessed from the outer side to the inner side of the timing cover 100, and are protruded from the inner side to the outer side of the timing cover 100, so as to strengthen the strength of the timing cover 100 at the positions of the two controller mounting holes 6.

[0089] In addition, the engine is a main excitation source of vehicle vibration and noise, and the vibration and noise level directly affects the vibration and noise level of the whole vehicle. Long-term engine vibration and noise research shows that the timing cover 100 and other thin-walled parts of the engine are often the main radiation source, and the radiation noise contribution generally accounts for 40%-60% of the total engine radiation noise. The existing timing cover 100 is a thin-walled part with a relatively large mounting surface, which is a large noise radiation source. The large plane structure directly affects the NVH performance of the engine. The timing cover 100 in the embodiment integrates the suspension mounting portion 2. After calculation, it is obtained that the first-order modal of the suspension mounting portion 2 is 684Hz, which is greater than the standard limit value, and the maximum tensile stress is less than the tensile strength limit value. The strength of the suspension mounting portion 2 meets the requirements. In addition, each connecting portion 1 is reasonably arranged, and the reinforcing rib is additionally arranged at the local connecting portion 1, which can effectively improve the large plane modal of the timing cover 100, reduce the medium and high frequency sound, and improve the sound quality.

[0090] The utility model discloses still propose a kind of engine.

[0091] ​According to the engine of the embodiment of the utility model, comprising the timing cover 100 of any one embodiment above, the connecting strength of the suspension mounting portion 2 and the timing cover 100 can be improved by integrating the suspension mounting portion 2 with the timing cover 100, at least one suspension reinforcing structure 3 is arranged at the suspension mounting portion 2 of the timing cover 100, the structural strength of the suspension mounting portion 2 can be effectively strengthened, the connecting strength of the timing cover 100 and the suspension structure can be improved, the inherent frequency of the suspension mounting portion 2 is improved, the resonance of the suspension mounting portion 2 is inhibited, and the first connecting hole 11 and the second connecting hole 12 are arranged on the lower side of the suspension mounting portion 2 and are distributed in an upper and lower interval, the outer periphery of the first connecting hole 11 and the second connecting hole 12 is respectively provided with the third reinforcing rib 42 and the fourth reinforcing rib 43, the strength of the middle and lower side area of the timing cover 100 can be improved, the overall vibration noise can be reduced by optimizing the local mode of the timing cover 100, the transmission of vibration and noise to the cab can be reduced, and the driving comfort of the user is improved.

[0092] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0093] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A timing cover characterized by, The timing cover is provided with a connecting portion and a suspension mounting portion, the connecting portion is used for connecting with the cylinder body and / or the cylinder head, and the suspension mounting portion is used for connecting with the vehicle body through a suspension structure; The timing cover is provided with at least one suspension reinforcing structure around the suspension mounting portion, and the suspension reinforcing structure protrudes from the inner side or the outer side of the timing cover.

2. The timing cover of claim 1, wherein, The suspension reinforcing structure comprises a first reinforcing structure, and the first reinforcing structure is arranged in a protruding manner on the outer side of the timing cover. The suspension reinforcing structure comprises a second reinforcing structure, and the second reinforcing structure is arranged in a protruding manner on the inner side of the timing cover.

3. The timing cover of claim 2, wherein, The first reinforcing structure comprises at least one first reinforcing rib, and the first reinforcing rib is configured to extend from the suspension mounting portion to a direction away from the suspension mounting portion on the outer side of the timing cover.

4. The timing cover of claim 2, wherein, The connecting portion comprises a first connecting hole used for connecting with the cylinder head, and the second reinforcing structure comprises at least one second reinforcing rib, and the second reinforcing rib is configured to extend from the first connecting hole to a direction away from the first connecting hole on the inner side of the timing cover.

5. The timing cover of claim 4, wherein, The suspension mounting portion comprises at least two parts, and the first connecting hole is located between the two parts of the suspension mounting portion.

6. The timing cover of claim 1, wherein, The connecting portion comprises at least one second connecting hole used for connecting with the cylinder body, the second connecting holes are distributed in a spaced manner with the suspension mounting portion, and the inner side of the timing cover is provided with a third reinforcing structure at the second connecting holes.

7. The timing cover of claim 6, wherein, The third reinforcing structure comprises a groove portion, the second connecting holes pass through the groove portion, and the groove portion is configured to be recessed inward on the outer side of the timing cover and protrude on the inner side of the timing cover; The third reinforcing structure comprises at least one third reinforcing rib, and the third reinforcing rib is configured to extend from the second connecting hole to a direction away from the second connecting hole on the inner side of the timing cover.

8. The timing cover of claim 7, wherein, The timing cover is further provided with an intermediate reinforcing structure between the suspension mounting portion and the second connecting hole; The intermediate reinforcing structure comprises a central reinforcing portion and a plurality of intermediate reinforcing ribs, and the intermediate reinforcing ribs are distributed in a radial manner around the central reinforcing portion.

9. The timing cover of claim 1, wherein, The suspension mounting portion is provided with a plurality of hollow grooves open to the inner side; The suspension mounting portion is provided with a weight-reducing hole; The timing cover is provided with two controller mounting holes, the two controller mounting holes are distributed in a spaced manner, and the timing cover is provided with at least one horizontal reinforcing rib in a region between the two controller mounting holes.

10. An engine characterized by, The timing cover comprises the timing cover according to any one of claims 1-9.

Images