Spline structure for reducing vibration and noise and automobile

Abstract

The application discloses a spline structure and a car capable of reducing vibration and noise, and relates to the field of power systems of passenger cars.The spline structure comprises a spline body and a plurality of accommodating cavities arranged on the surface of the spline body.The material of the accommodating cavities located on the outer side of the spline body is an elastic material.A liquid storage component is arranged in the interior of the spline body, and the liquid storage component is in communication with the accommodating cavities.When the spline body rotates, the liquid in the liquid storage component is affected by centrifugal force and flows into the accommodating cavities, so that the elastic material of the accommodating cavities protrudes to the outer side of the spline body.The vibration and noise in the transmission system of the whole car are reduced, and support is provided for improving the quality of the whole car.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of passenger car power system, more particularly, relates to a spline structure and a car for reducing vibration and noise. BACKGROUND

[0002] With the improvement of people's living standards and automobile manufacturing enterprises in China, the automobile has become one of the main means of transportation. With the development of science and technology, the automobile is no longer regarded as a simple means of transportation, and the comfort requirement is also higher and higher, and people's requirement for the vibration and noise of the automobile is higher and higher. In the working process of the traditional fuel vehicle, the cylinders work in turn, so it is necessary to install a mass flywheel to reduce the torque unevenness caused by the explosion pressure in the cylinder. At this time, there is still a gap between the mass flywheel and the engine output shaft, which may cause the engine output shaft to knock the mass flywheel during the working process of the engine, especially at the idling stage. When the transient speed of the engine output shaft is different from the flywheel, there will be vibration and noise caused by knocking, which affects the use experience. SUMMARY

[0003] The purpose of the present application is to solve the problems existing in the prior art, and provide a spline structure and a car for reducing vibration and noise, which can reduce the vibration and noise in the vehicle transmission system and provide support for improving the quality of the vehicle.

[0004] In order to achieve the above purpose, the present application provides a spline structure for reducing vibration and noise, comprising:

[0005] a spline body;

[0006] a plurality of accommodating cavities arranged on the surface of the spline body, the material of the accommodating cavities outside the spline body being elastic material;

[0007] a liquid storage component arranged inside the spline body, the liquid storage component being in communication with the accommodating cavities, when the spline body rotates, the liquid in the liquid storage component is affected by centrifugal force and flows into the accommodating cavities, so that the elastic material of the accommodating cavities protrudes outwardly of the spline body.

[0008] Optionally, the liquid storage component comprises a liquid storage cavity and a plurality of pipelines, the liquid storage cavity is in ring structure, the liquid storage cavity is arranged concentrically with the spline body, and the liquid storage cavity is in communication with the accommodating cavities through the pipelines.

[0009] Optionally, the liquid storage cavity is filled with viscous liquid.

[0010] Optionally, the accommodating cavities are provided with fixed particles.

[0011] Optionally, the material of the accommodation cavity outside the spline body is insulating material, and the accommodation cavity is provided with magnetic fluid particles.

[0012] Optionally, the surface of the spline body is provided with a plurality of pits.

[0013] Optionally, a plurality of the accommodation cavities form a plurality of accommodation cavity regions, and the accommodation cavity regions are arranged along the axial direction of the spline body.

[0014] Optionally, a plurality of pits are arranged between adjacent accommodation cavity regions, and the pits are arranged in a matrix manner.

[0015] Optionally, the pits and the accommodation cavities are arranged on each tooth surface of the spline body.

[0016] The application also provides an automobile comprising the spline structure for reducing vibration and noise.

[0017] The application provides a spline structure for reducing vibration and noise and an automobile, which has the beneficial effect that the accommodation cavities in the spline structure are arranged on the surface, when the spline structure starts to rotate, the liquid in the liquid storage part is subjected to the centrifugal force to generate a certain pressure, the liquid enters the accommodation cavities and causes the elastic material part of the outer surface of the accommodation cavities to deform, and with the increase of the pressure, the deformation degree of the accommodation cavities is greater, so that the outer surface of the accommodation cavities can directly contact the surface of the transmission part, the direct contact between the surface of the spline body and the transmission part is reduced, and thus the generation of vibration is reduced.

[0018] Other features and advantages of the application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings in which like reference characters refer to like parts throughout the several views.

[0020] Figure 1 Fig. 1 shows a structural schematic diagram of a spline structure for reducing vibration and noise according to one embodiment of the application.

[0021] Figure 2 Fig. 2 shows a sectional view of A-A of Fig. 1. Figure 1

[0022] Fig. 3 shows a connection schematic diagram of an accommodation cavity and a pipeline according to one embodiment of the application. Figure 3

[0023] Figure 4 ​A structural diagram of a dimple according to one embodiment of the present application is shown.

[0024] Figure 5 A surface structure diagram of a spline body according to one embodiment of the present application is shown.

[0025] Legend of reference signs:

[0026] 1, spline body; 2, containing cavity; 3, liquid storage cavity; 4, pipeline; 5, viscous liquid; 6, fixed particle; 7, magnetic fluid particle; 8, dimple; 9, containing cavity area. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present application will be described in more detail below. Although the preferred embodiments of the present application are described below, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0028] The present application provides a spline structure for reducing vibration and noise, comprising:

[0029] a spline body;

[0030] a plurality of containing cavities arranged on the surface of the spline body, the containing cavities being made of elastic material outside the spline body;

[0031] a liquid storage component arranged inside the spline body, the liquid storage component being in communication with the containing cavities, when the spline body rotates, the liquid in the liquid storage component flows into the containing cavities under the action of centrifugal force, causing the elastic material of the containing cavities to protrude outwardly of the spline body.

[0032] Specifically, when the spline structure rotates, the liquid in the liquid storage component flows into the containing cavities under the action of centrifugal force, and since the part of the containing cavities outside the surface of the spline body is made of elastic material, the more liquid flows into the containing cavities when the spline structure rotates faster, thus causing the elastic material to deform, and the containing cavities to protrude outwardly of the spline body more, when the spline structure contacts the surface of other transmission parts, the outer surface of the containing cavities can first directly contact the other transmission parts, reducing the adhesion of the spline structure and the parts, and reducing the generation of vibration.

[0033] Optionally, the liquid storage component comprises a liquid storage cavity and a plurality of pipelines, the liquid storage cavity has a ring structure, and the liquid storage cavity is arranged concentrically with the spline body, and the liquid storage cavity is in communication with the containing cavities through the pipelines.

[0034] Specifically, the spline body is internally provided with an annular liquid storage cavity, and when the spline body rotates, the liquid in the liquid storage cavity can uniformly spread outward, so that each pipeline has liquid entering the containing cavity.

[0035] Optionally, the liquid storage cavity is filled with viscous liquid.

[0036] Specifically, the liquid storage cavity contains viscous liquid with a certain viscosity, which can absorb the vibration generated when the spline structure contacts other transmission parts through the damping of the viscous liquid, reducing the vibration of the spline body surface and the external transmission.

[0037] Optionally, the containing cavity is provided with fixed particles.

[0038] Specifically, the containing cavity contains fixed particles, and due to the centrifugal force generated when the spline structure rotates, the fixed particles gather on the side with elastic material under the action of the centrifugal force, increasing the contact stiffness of the part of the containing cavity located on the outside of the spline body, and because the viscous liquid enters the containing cavity, the contact stiffness of the elastic material surface of the containing cavity is increased, and the vibration is not directly transmitted to the spline body.

[0039] Optionally, the material of the containing cavity located on the outside of the spline body is an insulating material, and the containing cavity is provided with magnetic fluid particles.

[0040] Specifically, the material of the containing cavity located on the outside is an insulating material, so the surface material of other transmission parts is not the same material, and when the surface of the spline body repeatedly contacts and rubs with the surface of other transmission parts, the material located on the outside of the containing cavity can form an electric field, so the magnetic fluid particles in the containing cavity can gather on the surface of the insulating material, increasing the contact strength of the part of the containing cavity located on the outside of the spline body.

[0041] Optionally, a plurality of pits are arranged on the surface of the spline body.

[0042] Specifically, a lubricant is used on the surface of the spline body, and the pits can store a certain amount of lubricant. When the surface of the spline body contacts other transmission parts with slight deformation, the lubricant in the pits can flow to the surface of the spline body due to the deformation, which can avoid direct contact between the surface of the spline body and the surface of other transmission parts. In addition, the pits can utilize the extrusion effect of the lubricant to avoid direct contact between the surface of the spline body and the surface of other transmission parts. In addition, when the surface of the spline body and the surface of other transmission parts slide relative to each other, the pits can also increase the dynamic pressure effect of the lubricant, reducing the direct contact load between the surface of the spline body and the surface of other transmission parts.

[0043] Optionally, a plurality of containing cavities form a plurality of containing cavity regions, and the containing cavity regions are arranged along the axial direction of the spline body.

[0044] Optionally, a plurality of recesses are arranged between adjacent accommodating cavity regions, and the recesses are arranged in a matrix manner.

[0045] Optionally, the sprocket body is provided with recesses and accommodating cavities on each tooth surface.

[0046] Specifically, the accommodating cavity region is arranged on each tooth surface of the sprocket body along the axial direction of the spline structure, and the accommodating cavity region is uniformly arranged with one pass of accommodating cavities. A plurality of recesses are arranged between every two accommodating cavity regions, and the recesses are also arranged according to the same rule. Thus, when the spline structure rotates, the lubricant in the recesses can flow uniformly to each tooth surface of the sprocket body, and the deformation of the accommodating cavities can reduce the generation of vibration when each tooth surface of the spline structure contacts other transmission parts.

[0047] The application also provides an automobile comprising the above-mentioned spline structure for reducing vibration and noise, and the spline structure for reducing vibration and noise is connected with the whole vehicle transmission system.

[0048] Embodiment

[0049] As shown in the accompanying drawings, Figures 1 to 5 The application provides a spline structure for reducing vibration and noise, comprising:

[0050] a sprocket body 1;

[0051] a plurality of accommodating cavities 2 arranged on the surface of the sprocket body 1, and the material of the accommodating cavities 2 on the outer side of the sprocket body is an elastic material;

[0052] a liquid storage component arranged in the interior of the sprocket body 1, the liquid storage component is in communication with the accommodating cavities 2, and when the sprocket body 1 rotates, the liquid in the liquid storage component flows into the accommodating cavities 2 under the action of centrifugal force, so that the elastic material of the accommodating cavities 2 protrudes outwardly of the sprocket body 1.

[0053] In this embodiment, the liquid storage component comprises a liquid storage cavity 3 and a plurality of pipelines 4, the liquid storage cavity 3 is in a ring structure, and the liquid storage cavity 3 is arranged concentrically with the sprocket body 1. The liquid storage cavity 3 is in communication with the accommodating cavities 2 through the pipelines 4.

[0054] In this embodiment, the liquid storage cavity 3 is filled with viscous liquid 5.

[0055] In this embodiment, the accommodating cavities 2 are provided with fixed particles 6.

[0056] In this embodiment, the material of the accommodating cavities 2 on the outer side of the sprocket body 1 is an insulating material, and the accommodating cavities 2 are provided with magnetic fluid particles 7.

[0057] In this embodiment, a plurality of recesses 8 are arranged on the surface of the sprocket body 1.

[0058] In the present embodiment, the plurality of accommodating cavities 2 constitute a plurality of rows of accommodating cavity regions 9, which are arranged in the axial direction of the spline body 1.

[0059] In the present embodiment, a plurality of recesses 8 are arranged between adjacent accommodating cavity regions 9, and the recesses 8 are arranged in a matrix pattern.

[0060] In the present embodiment, the recesses 8 and the accommodating cavities 2 are provided on each of the tooth surfaces of the spline body 1.

[0061] The present application also provides an automobile comprising the above-mentioned vibration- and noise-reducing spline structure, the vibration- and noise-reducing spline structure being connected to the vehicle drive system.

[0062] In summary, when the spline structure is synchronously rotated with other transmission parts, the liquid in the liquid storage cavity 3 enters the accommodating cavity 2 under the action of centrifugal force, which causes the accommodating cavity 2 to deform, reduces the contact area of the surface of the spline body 1 with other transmission parts, and the fixed shell 6 is also brought to the region outside the spline body where the accommodating cavity 2 is located, thereby improving the contact stiffness of the surface of the accommodating cavity 2. When the surface of the accommodating cavity 2 contacts other transmission parts, the surface of the accommodating cavity 2 contains viscous liquid 5, so that the vibration can be absorbed by damping, thereby reducing the vibration and noise generated during transmission.

[0063] The above has described the embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A spline structure for reducing vibration and noise, characterized by, The application relates to a spline structure for reducing vibration and noise. The spline structure comprises a spline body, a plurality of accommodating cavities arranged on the surface of the spline body, the accommodating cavities being arranged on each tooth surface of the spline body, and the material of the accommodating cavities outside the spline body being elastic material; a liquid storage component arranged inside the spline body, the liquid storage component being communicated with the accommodating cavities, liquid in the liquid storage component flowing into the accommodating cavities under the action of centrifugal force when the spline body rotates, and the elastic material of the accommodating cavities bulging outwards of the spline body. The liquid storage component comprises a liquid storage cavity and a plurality of pipelines, the liquid storage cavity is in a ring structure, the liquid storage cavity is concentrically arranged with the spline body, and the liquid storage cavity is communicated with the accommodating cavities through the pipelines. The liquid storage cavity is filled with viscous liquid.

2. The vibration and noise reducing spline structure according to claim 1, characterized by, The accommodating cavities are provided with fixed particles.

3. The vibration and noise reducing spline structure according to claim 2, characterized by The material of the accommodating cavities outside the spline body is insulating material, and the accommodating cavities are provided with magnetic fluid particles.

4. The vibration and noise reducing spline structure according to claim 3, characterized by The surface of the spline body is provided with a plurality of pits.

5. The vibration and noise reducing spline structure according to claim 1, characterized by The plurality of accommodating cavities form a plurality of accommodating cavity regions, and the accommodating cavity regions are arranged along the axial direction of the spline body.

6. The vibration and noise reducing spline structure according to claim 1, characterized by A plurality of pits are arranged between adjacent accommodating cavity regions, and the pits are arranged in a matrix mode.

7. The vibration and noise reducing spline structure according to claim 6, characterized by The pits and the accommodating cavities are arranged on each tooth surface of the spline body.

8. The vibration and noise reducing spline structure according to claim 7, characterized by The application further relates to a vehicle transmission system connected with the spline structure for reducing vibration and noise.

9. The vibration and noise reducing spline structure according to claim 8, characterized by ​ 10. An automobile characterized by comprising: ​

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