Tensioner gasket, engine and vehicle

Abstract

The utility model discloses a tensioner gasket, an engine and a vehicle, and belongs to the field of gaskets. The tensioner gasket comprises a gasket body, a penetrating hole is formed in the gasket body, the penetrating hole penetrates through the gasket body in the thickness direction of the gasket body, and a boss assembly is arranged on the hole wall of the penetrating hole in the radial direction. According to the tensioner gasket, the boss assembly is arranged on the hole wall of the penetrating hole, so that after the tensioner gasket is arranged on a connecting shaft of a tensioner in a sleeving mode, the friction force between the tensioner gasket and the connecting shaft is relatively large due to the existence of the boss assembly, and therefore in the process that a nut of the tensioner drives the connecting shaft to rotate, the friction force between the tensioner gasket and the connecting shaft is large; and the tensioner gasket is not easy to rotate, so that the risk of engine oil leakage of an engine can be reduced.

Description

Technical Field

[0001] This application belongs to the field of gaskets, specifically relating to a tensioner gasket, an engine, and a vehicle. Background Technology

[0002] With the development of technology, vehicles have become an indispensable means of transportation for people's daily travel. Typically, a vehicle is equipped with an engine containing oil and a tensioner. The tensioner ensures that the engine's timing chain is always at the correct tension, preventing a loose chain from causing tooth skipping and timing errors, leading to engine stalling; it also prevents an overly tight chain from breaking, causing timing failure and engine stalling. The tensioner consists of a nut and a connecting shaft. The nut is located at one end of the connecting shaft, and a washer is fitted onto the shaft. By embedding the connecting shaft in the engine, with the nut abutting against the washer, and the washer against the engine casing, oil leaks are prevented. However, in some technologies, after the washer is fitted onto the connecting shaft, tightening the tensioner with force on the nut can cause the washer to rotate with the connecting shaft or nut, resulting in uneven deformation and potentially leading to oil leaks. Utility Model Content

[0003] The purpose of this application is to provide a tensioner gasket, an engine, and a vehicle, at least to solve the problem that the gasket is prone to rotation, resulting in uneven deformation of the gasket, which in turn may lead to the risk of engine oil leakage.

[0004] In a first aspect, embodiments of this application provide a tensioner gasket, the tensioner gasket comprising: a gasket body, the gasket body having a through hole, the through hole penetrating the gasket body along the thickness direction, and a boss assembly being provided on the wall of the through hole.

[0005] Optionally, the boss assembly includes a plurality of fixed bosses, which are spaced apart along the circumferential direction of the through hole.

[0006] Optionally, the distance between any two adjacent fixed bosses is equal along the circumferential direction of the fixed boss.

[0007] Optionally, along the circumferential direction of the through hole, the fixing boss has a first end and a second end opposite to each other, the first end and the wall of the through hole are connected by an arc surface, and the second end and the wall of the through hole are connected by an arc surface.

[0008] Optionally, the surface of the fixed boss facing away from the wall of the through hole is an arc surface.

[0009] Optionally, the arc surface is curved in a direction towards the hole wall of the through hole.

[0010] Optionally, the thickness of the fixing boss is equal to the thickness of the gasket body.

[0011] Optionally, the boss assembly and the gasket body are integrally formed.

[0012] Optionally, the distance from the center of the through hole to one end of the boss assembly away from the hole wall of the through hole is 22.31 mm, and the distance from the center of the through hole to the part of the through hole where the boss assembly is not arranged is 22.9 mm.

[0013] In a second aspect, the embodiments of the present application provide an engine, which comprises the gasket of any one of the first aspect.

[0014] Optionally, the engine further comprises a tensioner.

[0015] The tensioner is arranged in the through hole, and the distance between the tensioner and the boss assembly is 0.03 mm.

[0016] The tensioner is arranged in the through hole, and at least part of the tensioner is located in the engine body.

[0017] In a third aspect, the embodiments of the present application provide a vehicle, which comprises the engine of the second aspect.

[0018] In the embodiments of the present application, since the through hole is arranged on the gasket body and penetrates the gasket body in the thickness direction of the gasket, when the gasket is used in the tensioner, the gasket can be directly sleeved on the connecting shaft of the tensioner, so that the gasket can be applied to the tensioner. Since the boss assembly is arranged on the hole wall of the through hole, when the gasket is sleeved on the connecting shaft of the tensioner, the gasket abuts against the nut, and when the gasket abuts against the shell of the engine, once force is applied to the nut of the tensioner, in the process of rotating the connecting shaft of the tensioner, the boss assembly on the hole wall of the through hole increases the friction between the connecting shaft and the gasket body, so that the gasket body is not easy to rotate with the connecting shaft, that is, the gasket body is not easy to follow. That is, in the embodiments of the present application, by arranging the boss assembly on the hole wall of the through hole, after the gasket is sleeved on the connecting shaft of the tensioner, the existence of the boss assembly makes the gasket have relatively large friction with the connecting shaft, so that in the process of rotating the connecting shaft driven by the nut of the tensioner, the gasket is not easy to follow, thereby reducing the risk of engine oil leakage. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Fig. 1 shows a schematic view of a gasket for a tensioner according to an embodiment of the present application;

[0020] Figure 2 Fig. 2 shows a schematic view of an engine according to an embodiment of the present application;

[0021] Figure 3 Fig. 3 shows a front view of a tensioner according to an embodiment of the present application.

[0022] Reference signs:

[0023] 10: gasket body; 101: through hole; 102: boss assembly; 1021: fixed boss; 100: engine body; 200: tensioner; 201: nut; 202: connecting shaft. DETAILED DESCRIPTION

[0024] The terms "first", "second" in the specification and claims of the present application can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally means that the front and rear associated objects are in an "or" relationship.

[0025] In the description of the present application, it should be understood that 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 indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element 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.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be broadly understood, 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.

[0027] Reference Figure 1 Fig. 1 shows a schematic view of a gasket for a tensioner according to an embodiment of the present application. As shown in Figure 1As shown, the tensioner gasket comprises: a gasket body 10, a through hole 101 is arranged on the gasket body 10, and the through hole 101 penetrates the gasket body 10 along the thickness direction of the gasket body 10, and a boss assembly 102 is arranged on the hole wall of the through hole 101.

[0028] In the embodiment of the present application, since the through hole 101 is arranged on the gasket body 10 and penetrates the gasket body 10 along the thickness direction of the gasket, in actual application, that is, when the tensioner gasket is used for the tensioner 200, the tensioner gasket can be directly sleeved on the connecting shaft 202 of the tensioner 200, so that the tensioner gasket can be applied to the tensioner 200. Since the boss assembly 102 is arranged on the hole wall of the through hole 101, after the tensioner gasket is sleeved on the connecting shaft 202 of the tensioner 200, the tensioner gasket abuts against the nut, and when the tensioner gasket abuts against the shell of the engine, once force is applied to the nut of the tensioner 200, in the process of rotating the connecting shaft 202 of the tensioner 200, the existence of the boss assembly 102 on the hole wall of the through hole 101 will increase the friction between the connecting shaft 202 and the gasket body 10, so that the gasket body 10 is not easy to rotate with the connecting shaft 202, that is, the gasket body 10 is not easy to follow. That is, in the embodiment of the present application, by arranging the boss assembly 102 on the hole wall of the through hole 101, after the tensioner gasket is sleeved on the connecting shaft 202 of the tensioner 200, the existence of the boss assembly 102 makes the tensioner gasket and the connecting shaft 202 have relatively large friction, so that in the process of rotating the connecting shaft 202 driven by the nut 201 of the tensioner 200, the gasket is not easy to follow, thereby reducing the risk of engine oil leakage.

[0029] In the related art, the gasket body 10 is provided with a through hole 101, so that after the gasket body 10 is sleeved on the connecting shaft 202 of the tensioner 200, the gasket body 10 is usually vertically placed, the gap between the gasket body 10 and the connecting shaft 202 of the tensioner 200 is large, the eccentricity of the gasket body 10 during installation is serious, the force is uneven, and because the gasket body 10 is eccentric, the gasket body 10 is easy to follow during the process of tightening the nut 201, which causes uneven deformation, reduces the sealing effect of the gasket body 10, and increases the risk of engine oil leakage. In the embodiment of the present application, the gasket body 10 is provided with a boss assembly 102 on the hole wall of the through hole 101, and after the gasket body 10 is sleeved on the connecting shaft 202 of the tensioner 200, the gasket body 10 is vertically placed, but due to the existence of the boss assembly 102, the gap between the gasket body 10 and the connecting shaft 202 of the tensioner 200 is reduced, and then during the installation of the gasket body 10, the eccentricity of the gasket body 10 can be reduced, the force on the gasket body 10 is more uniform, and the eccentricity of the gasket body 10 is reduced, so that during the process of tightening the nut 201, the gasket body 10 is not easy to follow, and then the gasket body 10 deforms uniformly, the sealing effect of the gasket body 10 is improved, and the risk of engine oil leakage is reduced.

[0030] In addition, in some embodiments, the boss assembly 102 includes a plurality of fixed bosses 1021, and the plurality of fixed bosses 1021 are spaced apart along the circumferential direction of the through hole 101.

[0031] Because the plurality of fixed bosses 1021 are spaced apart along the circumferential direction of the through hole 101, after the gasket is sleeved on the connecting shaft 202 of the tensioner 200, each fixed boss 1021 of the plurality of fixed bosses 1021 has a gap with the connecting shaft 202, and the plurality of fixed bosses 1021 are spaced apart, which can ensure that during rotation of the connecting shaft 202, the plurality of fixed bosses 1021 have gaps, and the plurality of fixed bosses 1021 are closer to the connecting shaft 202 relative to the hole wall of the through hole 101, thereby avoiding the problem of eccentricity of the gasket body 10. And the plurality of fixed bosses 1021 can prevent the gasket body 10 from following, ensuring that the gasket body 10 deforms uniformly.

[0032] It should be noted that the hole wall of the through hole 101 is provided with a plurality of fixed bosses 1021, and the diameter of the incircle of the plurality of fixed bosses 1021 is greater than the diameter of the connecting shaft 202 of the tensioner 200, which ensures that the gasket body 10 can be sleeved on the connecting shaft 202. For example, the diameter of the connecting shaft 202 can be 22.51mm, and the diameter of the incircle of the plurality of fixed bosses 1021 is 22.31mm.

[0033] The distance from the center of the through hole to the end of the boss assembly away from the hole wall of the through hole is 22.31 mm, and the distance from the center of the through hole to the part of the through hole where the boss assembly is not arranged is 22.9 mm. That is, the diameter of the inscribed circle formed by the boss assembly 22.31 is 22.31 mm, and the diameter of the through hole 101 is 22.9 mm, so as to facilitate sleeving the tensioner gasket on the connecting shaft 202 of the tensioner 200.

[0034] In addition, in the embodiment of the present application, the number of fixed protrusions 1021 can be set according to actual needs. For example, the number of fixed protrusions 1021 is 5, at this time, the 5 fixed protrusions 1021 are distributed along the circumferential direction of the through hole 101, and for another example, the number of fixed protrusions 1021 is 7, at this time, the 7 fixed protrusions 1021 are distributed along the circumferential direction of the through hole 101. The specific number of fixed protrusions 1021 is not limited in the embodiment of the present application.

[0035] In addition, in some embodiments, the distance between any two adjacent fixed protrusions 1021 along the circumferential direction of the fixed protrusion 1021 is equal.

[0036] Since the distance between any two adjacent fixed protrusions 1021 is equal, it is equivalent to that the plurality of fixed protrusions 1021 are distributed at equal intervals on the hole wall of the through hole 101, so that when the tensioner gasket is sleeved on the connecting shaft 202 of the tensioner 200, the angle of the tensioner gasket relative to the connecting shaft 202 can be directly considered. The tensioner gasket is sleeved on the connecting shaft 202. That is, by setting the distance between any two adjacent fixed protrusions 1021 to be equal, the tensioner gasket can be conveniently sleeved on the connecting shaft 202 of the tensioner 200.

[0037] It should be noted that the distance between any two adjacent fixed protrusions 1021 refers to the distance between the sides of any two adjacent fixed protrusions 1021 close to each other.

[0038] In addition, in some embodiments, along the circumferential direction of the through hole 101, the fixed protrusion 1021 has opposite first and second ends, and the junction between the first end and the hole wall of the through hole 101 is transitioned by a circular arc surface, and the junction between the second end and the hole wall of the through hole 101 is transitioned by a circular arc surface.

[0039] Since the junction of the first end and the hole wall of the through hole 101 is connected by a circular arc surface, and the junction of the second end and the hole wall of the through hole 101 is connected by a circular arc surface, the junction of each fixing boss 1021 and the hole wall of the through hole 101 can be conveniently connected, so that the gasket can be conveniently formed when being processed. In addition, the junction of the first end and the hole wall of the through hole 101 is connected by a circular arc surface, and the junction of the second end and the hole wall of the through hole 101 is connected by a circular arc surface, which can also improve the aesthetics of the gasket.

[0040] Of course, in the embodiment of the present application, the junction of the first end and the hole wall of the through hole 101 can also be connected by a bending surface or a flat surface, and the junction of the second end and the hole wall of the through hole 101 can also be connected by a bending surface or a flat surface.

[0041] For this, the embodiment of the present application is not limited here.

[0042] In addition, in some embodiments, the surface of the fixing boss 1021 away from the hole wall of the through hole 101 is an arc surface.

[0043] By setting the surface of the fixing boss 1021 away from the hole wall of the through hole 101 as an arc surface, when the tensioner gasket is sleeved on the connecting shaft 202 of the tensioner 200, the surface of the connecting shaft 202 of the tensioner 200 is a circular arc surface, so that the fixing boss 1021 and the surface shape of the connecting shaft 202 of the tensioner 200 are more matched, which helps the gasket to seal.

[0044] Of course, in the embodiment of the present application, the surface of the fixing boss 1021 away from the hole wall of the through hole 101 can also be a flat surface, and for this, the embodiment of the present application is not limited here.

[0045] In addition, in some embodiments, the arc surface is curved in the direction towards the hole wall of the through hole 101.

[0046] Generally, the surface of the connecting shaft 202 of the tensioner 200 is a circular arc surface, so that after the tensioner gasket is sleeved on the connecting shaft 202, by setting the arc surface to be curved in the direction towards the hole wall of the through hole 101, the surface of the fixing boss 1021 away from the hole wall of the through hole 101 is more matched with the surface of the connecting shaft 202 of the tensioner 200, which can further help the tensioner gasket to play a sealing role.

[0047] In addition, in some embodiments, the thickness of the fixing boss 1021 is equal to the thickness of the gasket body 10.

[0048] After the gasket sleeve is set on the connecting shaft 202 of the tensioner 200, when the opposite surfaces of the gasket body 10 are in contact with the nut 201 of the tensioner 200 and the shell of the engine respectively, once the nut 201 is screwed, the nut 201 can extrude the gasket body 10, but the thickness of the fixing boss 1021 is equal to the thickness of the gasket body 10, so that the gasket body 10 and the fixing boss 1021 can be subjected to substantially equal stress, and the fixing boss 1021 and the gasket body 10 are deformed close to each other, so that the gasket body 10 can be more effectively sealed, and the risk of engine oil leakage is reduced. That is, by setting the thickness of the fixing boss 1021 to be equal to the thickness of the gasket body 10, the risk of engine oil leakage can be effectively reduced.

[0049] It should be noted that in the embodiments of the present application, the thickness of the gasket body 10 is the distance between the two opposite surfaces of the gasket body 10.

[0050] Of course, in the embodiments of the present application, the thickness of the fixing boss 1021 can also be less than the thickness of the gasket body 10, and the embodiments of the present application are not limited in this regard.

[0051] In addition, in some embodiments, the boss assembly 102 and the gasket body 10 are integrally formed. Through such a setting, the strength of the gasket can be improved, and the service life of the gasket can be prolonged.

[0052] It should be noted that the tensioner gasket can be processed by an integral molding process, so that the boss assembly 102 and the gasket body 10 are integrally formed. For example, the tensioner gasket is formed by a stamping process, so that the boss assembly 102 and the gasket body 10 are integrally formed, that is, in the process of processing the tensioner gasket, the boss assembly 102 and the gasket body 10 can be directly stamped.

[0053] In addition, when the boss assembly 102 includes a plurality of fixing bosses 1021, each fixing boss 1021 is integrally formed with the gasket body 10.

[0054] In the embodiment of the present application, since the gasket body 10 is provided with the through hole 101, and the through hole 101 penetrates the gasket body 10 along the thickness direction of the gasket, in actual application, that is, when the tensioner gasket is used in the tensioner 200, the gasket can be directly sleeved on the connecting shaft 202 of the tensioner 200, so that the tensioner gasket can be applied to the tensioner 200. Since the boss assembly 102 is arranged on the hole wall of the through hole 101, after the tensioner gasket is sleeved on the connecting shaft 202 of the tensioner 200, the tensioner gasket abuts against the nut, and when the tensioner gasket abuts against the shell of the engine, once force is applied to the nut of the tensioner 200, the boss assembly 102 on the hole wall of the through hole 101 increases the friction between the connecting shaft 202 and the gasket body 10, so that the gasket body 10 is not easy to rotate with the connecting shaft 202, that is, the gasket body 10 is not easy to follow. That is, in the embodiment of the present application, by arranging the boss assembly 102 on the hole wall of the through hole 101, after the tensioner gasket is sleeved on the connecting shaft 202 of the tensioner 200, the existence of the boss assembly 102 makes the tensioner gasket and the connecting shaft 202 have relatively large friction, so that the tensioner gasket is not easy to follow during the rotation of the connecting shaft 202 driven by the nut 201 of the tensioner 200, thereby reducing the risk of engine oil leakage.

[0055] The embodiment of the present application provides an engine, which comprises the tensioner gasket in any one of the above-mentioned embodiments.

[0056] The engine further comprises an engine body 100 and a tensioner 200. The tensioner 200 is arranged in the through hole 101, at least part of the tensioner 200 is located in the engine body 100, and the distance between the tensioner 200 and the boss assembly 102 is 0.03 mm. Through such arrangement, after the tensioner gasket is sleeved on the connecting shaft 202 of the tensioner 200, the boss assembly 102 and the connecting shaft 202 have a gap, the connecting shaft 202 can rotate more conveniently, and the problem that the boss assembly 102 and the connecting shaft 202 are in contact and affect the rotation of the connecting shaft 202 is avoided.

[0057] In the embodiment of the present application, since the gasket body 10 is provided with the through hole 101, and the through hole 101 penetrates the gasket body 10 along the thickness direction of the gasket, in actual application, that is, when the tensioner gasket is used in the tensioner 200, the tensioner gasket can be directly sleeved on the connecting shaft 202 of the tensioner 200, so that the tensioner gasket can be applied to the tensioner 200. Since the boss assembly 102 is arranged on the hole wall of the through hole 101, after the tensioner gasket is sleeved on the connecting shaft 202 of the tensioner 200, the tensioner gasket abuts against the nut, and when the tensioner gasket abuts against the shell of the engine, once force is applied to the nut of the tensioner 200, in the process of rotation of the connecting shaft 202 of the tensioner 200, the presence of the boss assembly 102 on the hole wall of the through hole 101 increases the friction between the connecting shaft 202 and the gasket body 10, so that the gasket body 10 is not easy to rotate with the connecting shaft 202, that is, the gasket body 10 is not easy to follow. That is, in the embodiment of the present application, by arranging the boss assembly 102 on the hole wall of the through hole 101, after the tensioner gasket is sleeved on the connecting shaft 202 of the tensioner 200, the presence of the boss assembly 102 makes the tensioner gasket and the connecting shaft 202 have relatively large friction, so that in the process of rotation of the connecting shaft 202 driven by the nut 201 of the tensioner 200, the tensioner gasket is not easy to follow, thereby reducing the risk of engine oil leakage, and improving the performance of the engine.

[0058] The embodiment of the present application provides a vehicle, which comprises the engine in the above embodiment.

[0059] It should be noted that, in the embodiment of the present application, the type of the vehicle includes but is not limited to a fuel type vehicle and a hybrid type vehicle.

[0060] In the description of the 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 present application. In the specification, the exemplary description of the above terms does not necessarily mean 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.

[0061] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A tensioner gasket, characterized in that, include: The gasket body has a through hole that extends through the gasket body along its thickness direction, and a boss assembly is provided radially on the wall of the through hole.

2. The tensioner gasket according to claim 1, characterized in that, The boss assembly includes multiple fixed bosses, which are spaced apart along the circumferential direction of the through hole.

3. The tensioner gasket according to claim 2, characterized in that, Along the circumferential direction of the fixed boss, the distance between any two adjacent fixed bosses is equal.

4. The tensioner gasket according to claim 2, characterized in that, Along the circumferential direction of the through hole, the fixing boss has a first end and a second end opposite to each other. The first end and the wall of the through hole are connected by an arc surface, and the second end and the wall of the through hole are connected by an arc surface.

5. The tensioner gasket according to claim 2, characterized in that, The surface of the fixed boss that faces away from the wall of the through hole is an arc surface.

6. The tensioner gasket according to claim 5, characterized in that, The arc surface bends in the direction toward the wall of the through hole.

7. The tensioner gasket according to claim 2, characterized in that, The thickness of the fixed boss is equal to the thickness of the gasket body.

8. The tensioner gasket according to any one of claims 1-7, characterized in that, The boss assembly and the gasket body are integrally formed.

9. The tensioner gasket according to any one of claims 1-7, characterized in that, The distance from the center of the through hole to one end of the boss assembly away from the hole wall is 22.31 mm, and the distance from the center of the through hole to the part of the through hole where the boss assembly is not installed is 22.9 mm.

10. An engine, characterized in that, The engine includes the tensioner gasket according to any one of claims 1-9.

11. The engine according to claim 10, characterized in that, The engine also includes a tensioner; The tensioner is inserted through the through hole, and the distance between the tensioner and the boss assembly is 0.03 mm.

12. A vehicle, characterized in that, The vehicle includes the engine according to any one of claims 10-11.

Images