Bushing and vehicle

Abstract

The utility model discloses a bushing and a vehicle, the bushing is installed in a through hole of a fixed support, the bushing comprises a support sleeve, a first bushing split body and a second bushing split body, the first bushing split body and the second bushing split body are respectively sleeved on the periphery of the support sleeve and are in butt joint along the axial direction of the support sleeve, and a buffer cavity is arranged between the first bushing split body and the second bushing split body. The bushing is divided into the first bushing split body and the second bushing split body which are arranged in a split mode, when the fixing support vibrates at high frequency, the first bushing split body and the second bushing split body are relatively independent, the bushing is effectively prevented from being abraded, the service life of the bushing is prolonged, the buffering cavity is formed between the first bushing split body and the second bushing split body, and the service life of the bushing is prolonged. When the fixing support generates high-frequency vibration, the buffer cavity plays a role in buffering, the first bush split body and the second bush split body are not prone to mutual abrasion, the abrasion resistance and the durability of the bush are improved, and the service life of the bush is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a bushing and a vehicle. Background Art

[0002] The increasingly compact space in the cabin has resulted in some air filter assemblies being placed on the engine. When the engine is operating, it will generate severe high-frequency reciprocating vibrations and large-angle torsion, which will cause the rubber bushing used to fix the air filter assembly to wear out, thereby causing the air filter fixing bracket to wear out and fail, producing abnormal noise.

[0003] In the prior art, the hardness of the rubber material of the rubber bushing is increased or the rubber bushing is assembled with the air filter bracket hole by interference fit to achieve the effect of delaying wear, but the above solution has limited effect on delaying the wear of the rubber bushing. Utility Model Content

[0004] The utility model aims at least to solve the technical problem of poor wear resistance and durability of the rubber bushing in the prior art.

[0005] To this end, one purpose of the utility model is to propose a bushing, which is installed in a through hole of a fixed bracket, and includes a support sleeve, a first bushing split and a second bushing split. The first bushing split and the second bushing split are respectively sleeved on the outer periphery of the support sleeve and connected along the axial direction of the support sleeve, and a buffer cavity is provided between the first bushing split and the second bushing split.

[0006] In some embodiments, a metal frame is provided on at least one of the first bushing part and the second bushing part.

[0007] In some embodiments, the first bushing body comprises a first rubber sleeve and a first metal frame, one end of the first rubber sleeve has a first step portion, and the first metal frame is installed on the first step portion;

[0008] The second bushing body comprises a second rubber sleeve and a second metal frame, one end of the second rubber sleeve has a second step portion, and the second metal frame is installed on the second step portion.

[0009] In some embodiments, the end of the first rubber sleeve is further provided with a limiting portion for limiting the position of the first metal skeleton.

[0010] In some embodiments, a first annular groove is provided on the inner wall of the first rubber sleeve, the support sleeve comprises a support sleeve body and a first support member sleeved on the outer periphery of the support sleeve body, the first support member is disposed in the first annular groove, and a first gap is provided between the first support member and the first annular groove.

[0011] In some embodiments, one end of the first rubber sleeve away from the first metal skeleton and / or one end of the second rubber sleeve away from the second metal skeleton is a vehicle body connection end, and a vibration damping portion is provided at the vehicle body connection end.

[0012] In some embodiments, the vibration damping portion is a plurality of annular vibration damping grooves arranged radially along the vehicle body connection end.

[0013] In some embodiments, the vibration damping portion is a plurality of vibration damping holes opened at the vehicle body connection end.

[0014] In some embodiments, the fastening bolt sequentially passes through the first bushing split body, the second bushing split body and the first side of the vehicle body sheet metal, and is connected to a nut provided on the second side of the vehicle body sheet metal, and the length of the first bushing split body is greater than the length of the second bushing split body.

[0015] In some embodiments, the materials of the first metal skeleton and the second metal skeleton are carbon steel or alloy steel;

[0016] The first metal skeleton is bonded or vulcanized and integrally formed with the first rubber sleeve, and the second metal skeleton is bonded or vulcanized and integrally formed with the second rubber sleeve.

[0017] Another object of the present invention is to provide a vehicle, including the above-mentioned bushing, and the fixed bracket is an air filter bracket.

[0018] The bushing and the vehicle provided by the embodiments of the present invention have the following beneficial effects:

[0019] The bushing is installed in the through hole of the fixed bracket, and includes a support sleeve, a first bushing split body and a second bushing split body. The first bushing split body and the second bushing split body are respectively sleeved on the outer periphery of the support sleeve and are butted along the axial direction of the support sleeve. There is a buffer cavity between the first bushing split body and the second bushing split body. By setting the bushing as the first bushing split body and the second bushing split body which are separately arranged, when the fixed bracket vibrates at high frequency, the first bushing split body and the second bushing split body are relatively independent, effectively preventing the bushing from wearing and extending the service life of the bushing. And a buffer cavity is formed between the first bushing split body and the second bushing split body. When the fixed bracket vibrates at high frequency, the buffer cavity plays a buffering role, and it is not easy for the first bushing split body and the second bushing split body to wear against each other, improving the wear resistance and durability of the bushing and further extending the service life of the bushing. Description of the Drawings

[0020] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 is a perspective view of the bushing in the embodiment of the present invention;

[0022] Figure 2 is a cross-sectional view of the bushing in the embodiment of the present invention;

[0023] Figure 3 is a perspective view of the first split bushing in the embodiment of the present invention;

[0024] Figure 4 is a perspective view of the support sleeve in the embodiment of the present invention;

[0025] Figure 5 is a perspective view of the second split bushing in the embodiment of the present invention.

[0026] Reference numerals:

[0027] 1, support sleeve; 11, support sleeve body; 12, first support member; 13, first gap; 2, first split bushing; 21, first rubber sleeve; 211, first step portion; 212, limiting portion; 22, first metal skeleton; 23, first annular groove; 3, second split bushing; 31, second rubber sleeve; 311, second step portion; 32, second metal skeleton; 4, buffer cavity; 5, damping portion; 51, annular damping groove; 6, fastening bolt; 7, nut; 100, fixing bracket; 101, through hole; 200, vehicle body sheet metal. Detailed embodiments

[0028] Reference is made herein to the various aspects and features of the present invention with reference to the accompanying drawings.

[0029] It should be understood that various modifications can be made to the embodiments claimed herein. Accordingly, the above description should not be construed as limiting, but merely as exemplary of the embodiments. Those skilled in the art will envision other modifications within the scope and spirit of the present invention.

[0030] The drawings included in the specification and forming a part thereof illustrate embodiments of the present invention and, together with the general description of the present invention given above and the detailed description of the embodiments given below, are used to explain the principles of the present invention.

[0031] These and other features of the present utility model will become apparent from the following description of the preferred forms of the embodiments given as non-limiting examples with reference to the accompanying drawings.

[0032] It should also be understood that although the present utility model has been described with reference to some specific examples, those skilled in the art can surely implement many other equivalent forms of the present utility model, which have the features as described in the claims and thus are all within the protection scope defined thereby.

[0033] When combined with the accompanying drawings, the above and other aspects, features and advantages of the present utility model will become more apparent in view of the following detailed description.

[0034] Hereinafter, specific embodiments of the present utility model will be described with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of the present utility model, which can be implemented in various ways. Well-known and / or repetitive functions and structures are not described in detail to avoid obscuring the present utility model with unnecessary or redundant details. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely as a basis and representative basis for the claims to teach those skilled in the art to use the present utility model in substantially any suitable detailed structure in a variety of ways.

[0035] The first embodiment of the present utility model provides a bushing, as Figures 1 - 5 shown, the bushing is installed in the through hole 101 of the fixed bracket 100, and includes a support sleeve 1, a first bushing split body 2 and a second bushing split body 3. The first bushing split body 2 and the second bushing split body 3 are respectively sleeved on the outer periphery of the support sleeve 1 and are butted along the axial direction of the support sleeve 1. There is a buffer cavity 4 between the first bushing split body 2 and the second bushing split body 3.

[0036] Specifically, the bushing includes the first bushing split body 2 and the second bushing split body 3 which are separately arranged, and the first bushing split body 2 and the second bushing split body 3 are respectively sleeved on the outer periphery of the support sleeve 1. During the high-frequency reciprocating vibration of the fixed bracket 100, the first bushing split body 2 and the second bushing split body 3 separately play a vibration damping role, which can effectively prevent the bushing from wearing for a long time and extend the service life of the bushing. There is a buffer cavity 4 between the first bushing split body 2 and the second bushing split body 3. When the fixed bracket 100 is vibrated along the axial direction, the first bushing split body 2 and the second bushing split body 3 can have a small displacement towards the buffer cavity 4 to achieve buffering, avoid the first bushing split body 2 and the second bushing split body 3 from coming into contact along the axial direction, further prevent the bushing from wearing, and extend the service life of the bushing.

[0037] The first bushing split body 2 and the second bushing split body 3 are separately arranged, with flexible assembly, and can be adapted to various solutions where the through hole 101 of the fixed bracket 100 is a round hole or an oval hole. It can effectively prevent the wear of the rubber bushing during the high-frequency reciprocating vibration of the engine for a long time and extend the service life of the rubber bushing.

[0038] At least one of the first bushing split body 2 and the second bushing split body 3 is provided with a metal skeleton. Among them, the metal skeleton can prevent friction between the through hole 101 of the fixed bracket 100 and the first bushing split body 2 and / or the second bushing split body 3, play a protective role for the first bushing split body 2 and / or the second bushing split body 3, and at the same time, the metal skeleton also plays a supporting role for the first bushing split body 2 and / or the second bushing split body 3.

[0039] Taking the example that both the first bushing split body 2 and the second bushing split body 3 are provided with metal skeletons for illustration.

[0040] As Figure 2 shown, the first bushing split body 2 includes a first rubber sleeve 21 and a first metal skeleton 22. One end of the first rubber sleeve 21 has a first step portion 211, and the first metal skeleton 22 is installed on the first step portion 211;

[0041] The second bushing split body 3 includes a second rubber sleeve 31 and a second metal skeleton 32. One end of the second rubber sleeve 31 has a second step portion 311, and the second metal skeleton 32 is installed on the second step portion 311.

[0042] Among them, the vertical section of the first step portion 211 extends into the through hole 101 of the fixed bracket 100 and is connected to the vertical section of the first metal skeleton 22, and the horizontal section of the first step portion 211 is connected to one side of the fixed bracket 100 through the horizontal section of the first metal skeleton 22. The vertical section of the second step portion 311 extends into the through hole 101 of the fixed bracket 100 and is connected to the vertical section of the second metal skeleton 32, and the horizontal section of the second step portion 311 is connected to the other side of the fixed bracket 100 through the horizontal section of the second metal skeleton 32. The first metal skeleton 22 realizes the connection between the fixed bracket 100 and the first rubber sleeve 21 from two directions, and the second metal skeleton 32 realizes the connection between the fixed bracket 100 and the second rubber sleeve 31 from two directions, which can reduce the axial friction and radial friction between the fixed bracket 100 and the bushing and play a protective role for the bushing.

[0043] Exemplarily, the first metal skeleton 22 and the second metal skeleton 32 are in a T shape.

[0044] The materials of the first metal skeleton 22 and the second metal skeleton 32 are carbon steel or alloy steel. Carbon steel is an iron-carbon alloy with a carbon content ranging from 0.0218% to 2.11%. The higher the carbon content in carbon steel, the greater the hardness and the higher the strength. Alloy steel is an iron-carbon alloy formed by adding an appropriate amount of one or more alloying elements to ordinary carbon steel, which has high strength, high toughness, wear resistance and corrosion resistance. The materials of the first metal skeleton 22 and the second metal skeleton 32 being carbon steel or alloy steel can ensure the strength or wear resistance of the metal skeleton.

[0045] The first metal skeleton 22 is bonded or vulcanized integrally with the first rubber sleeve 21, and the second metal skeleton 32 is bonded or vulcanized integrally with the second rubber sleeve 31. Specifically, the first rubber sleeve 21 is formed by injection molding, and then bonded or vulcanized with the first metal skeleton 22 into a whole, improving the support and vibration damping performance of the first split bushing 2. The second rubber sleeve 31 is formed by injection molding, and then bonded or vulcanized with the second metal skeleton 32 into a whole, improving the support and vibration damping performance of the second split bushing 3.

[0046] Taking the first split bushing 2 and the second split bushing 3 arranged from top to bottom as an example for illustration, as Figure 2 and Figure 3 shown, the first metal skeleton 22 has a downward movement tendency under the action of gravity. Therefore, a limiting portion 212 for limiting the first metal skeleton 22 is provided at the end of the first rubber sleeve 21, preventing a large-amplitude slip between the first metal skeleton 22 and the first rubber sleeve 21. Among them, the limiting portion 212 extends radially outward along the first rubber sleeve 21. Exemplarily, in order to ensure that the limiting portion 212 has sufficient contact area with the first metal skeleton 22, the limiting portion 212 can be set as a limiting flange arranged along the circumferential direction of the first rubber sleeve 21. The limiting portion 212 can also be set as a limiting bump extending radially along the first rubber sleeve 21.

[0047] In one embodiment, as Figure 2 and Figure 4 shown, the inner wall of the first rubber sleeve 21 is provided with a first annular groove 23. The support sleeve 1 includes a support sleeve body 11 and a first support member 12 sleeved on the outer periphery of the support sleeve body 11. The first support member 12 is arranged in the first annular groove 23, and there is a first gap 13 between the first support member 12 and the first annular groove 23. Specifically, when the fixed bracket 100 vibrates, the first gap 13 between the first split bushing 2 and the first support member 12 can play a buffering role, thus playing a role in extending the service life of the first split bushing 2.

[0048] In another embodiment, a second annular groove is provided on the inner wall of the second rubber sleeve 31. The support sleeve 1 includes a support sleeve body 11 and a second support member sleeved on the outer periphery of the support sleeve body 11. The second support member is disposed in the second annular groove, and there is a second gap between the second support member and the second annular groove. Specifically, when the fixed bracket 100 vibrates, the second gap between the second bushing split body 3 and the second support member can play a buffering role, thereby prolonging the service life of the second bushing split body 3.

[0049] In yet another embodiment, a first annular groove 23 is provided on the inner wall of the first rubber sleeve 21. The support sleeve 1 includes a support sleeve body 11 and a first support member 12 sleeved on the outer periphery of the support sleeve body 11. The first support member 12 is disposed in the first annular groove 23, and there is a first gap 13 between the first support member 12 and the first annular groove 23. A second annular groove is provided on the inner wall of the second rubber sleeve 31. The support sleeve 1 includes a support sleeve body 11 and a second support member sleeved on the outer periphery of the support sleeve body 11. The second support member is disposed in the second annular groove, and there is a second gap between the second support member and the second annular groove. When the fixed bracket 100 vibrates, the first gap 13 between the first bushing split body 2 and the first support member 12 and the second gap between the second bushing split body 3 and the second support member can play a buffering role, thereby prolonging the service lives of the first bushing split body and the second bushing split body 3.

[0050] One end of the first rubber sleeve 21 away from the first metal skeleton 22 and / or one end of the second rubber sleeve 31 away from the second metal skeleton 32 is a vehicle body connection end, and a vibration damping portion 5 is provided at the vehicle body connection end. The vibration damping portion 5 reduces the transmission of vibration between the vehicle body sheet metal 200 and the bushing, and improves the buffering performance of the bushing.

[0051] Specifically, the vibration damping portion 5 is a plurality of annular vibration damping grooves 51 arranged radially along the vehicle body connection end; or the vibration damping portion 5 is a plurality of vibration damping holes opened at the vehicle body connection end. Taking the vehicle body connection end as the end of the second rubber sleeve 31 away from the second metal skeleton 32 as an example, the vibration damping portion 5 is provided on the second rubber sleeve 31, and the annular vibration damping grooves 51 and the vibration damping holes reduce the contact area between the second rubber sleeve 31 and the vehicle body sheet metal 200, thereby reducing the vibration transmitted to the bushing.

[0052] Exemplarily, two annular vibration damping grooves 51 are provided.

[0053] In one of the embodiments, as Figure 2As shown, the fastening bolt 6 sequentially passes through the first split bushing 2, the second split bushing 3, and the first side of the body sheet metal 200, and is connected to the nut 7 provided on the second side of the body sheet metal 200. The length of the first split bushing 2 is greater than that of the second split bushing 3. Specifically, since the length of the fastening bolt 6 is relatively long, its bolt head extends into the through hole 101 along the first split bushing 2, and the interaction between the fastening bolt 6 and the first split bushing 2 is more obvious. The length of the first split bushing 2 being larger than that of the second split bushing 3 can improve the strength of the first split bushing 2 to enhance the supporting strength for the fastening bolt 6.

[0054] In another embodiment, the fastening bolt 6 sequentially passes through the first side of the body sheet metal 200, the second split bushing 3, and the first split bushing 2, and is connected to the nut 7 provided on the first side of the fixing bracket 100. The length of the second split bushing 3 is greater than that of the first split bushing 2. Since the length of the fastening bolt 6 is relatively long, its bolt head extends into the through hole 101 along the second split bushing 3, and the interaction between the fastening bolt 6 and the second split bushing 3 is more obvious. The length of the second split bushing 3 being larger than that of the first split bushing 2 can improve the strength of the second split bushing 3 to enhance the supporting strength for the fastening bolt 6.

[0055] The second embodiment of the present utility model provides a vehicle, including the above-mentioned bushing. The fastening bolt 6 passes through the first split bushing 2, the second split bushing 3, and the body sheet metal 200 to connect the fixing bracket 100 and the body sheet metal 200. The fixing bracket 100 is an air filter bracket.

[0056] In the description of the present utility model, it should 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", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0057] In the description of the present utility model, the "first feature", "second feature" may include one or more of such features.

[0058] In the description of the present utility model, the meaning of "a plurality" is two or more.

[0059] In the description of the present utility model, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but are in contact through additional features therebetween.

[0060] In the description of the present utility model, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature.

[0061] In the description of the present utility model, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0062] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A bushing installed in a through hole of a fixed bracket, characterized in that: It comprises a support sleeve, a first bushing split body and a second bushing split body. The first bushing split body and the second bushing split body are respectively sleeved on the outer circumference of the support sleeve and butted along the axial direction of the support sleeve. A buffer cavity is provided between the first bushing split body and the second bushing split body.

2. The bushing according to claim 1, characterized in that A metal frame is provided on at least one of the first bushing split body and the second bushing split body.

3. The bushing according to claim 2, characterized in that The first bushing body comprises a first rubber sleeve and a first metal frame, one end of the first rubber sleeve has a first step portion, and the first metal frame is installed on the first step portion; The second bushing body comprises a second rubber sleeve and a second metal frame, one end of the second rubber sleeve has a second step portion, and the second metal frame is installed on the second step portion.

4. The bushing according to claim 3, characterized in that The end of the first rubber sleeve is also provided with a limiting portion for limiting the position of the first metal frame.

5. The bushing according to claim 3, characterized in that The inner wall of the first rubber sleeve is provided with a first annular groove, the support sleeve comprises a support sleeve body and a first support member sleeved on the outer periphery of the support sleeve body, the first support member is arranged in the first annular groove, and a first gap is formed between the first support member and the first annular groove.

6. The bushing according to claim 3, characterized in that One end of the first rubber sleeve away from the first metal frame and / or one end of the second rubber sleeve away from the second metal frame is a vehicle body connecting end, and the vehicle body connecting end is provided with a vibration reduction part.

7. The bushing according to claim 6, characterized in that The vibration-damping portion is a plurality of annular vibration-damping grooves arranged along the radial direction of the vehicle body connecting end; or The vibration reduction part is a plurality of vibration reduction holes opened at the connecting end of the vehicle body.

8. The bushing according to claim 1, characterized in that The fastening bolt passes through the first bushing split, the second bushing split and the first side of the body sheet metal in sequence, and is connected to a nut arranged on the second side of the body sheet metal. The length of the first bushing split is greater than that of the second bushing split.

9. The bushing according to claim 3, characterized in that The first metal frame and the second metal frame are made of carbon steel or alloy steel; The first metal skeleton and the first rubber sleeve are bonded or vulcanized to form an integral body, and the second metal skeleton and the second rubber sleeve are bonded or vulcanized to form an integral body.

10. A vehicle, characterized in that: The utility model comprises the bushing according to any one of claims 1 to 9, wherein the fixing bracket is an air filter bracket.

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