CN218266949U - Suspension bush rotation-proof structure, automobile part with same and automobile - Google Patents

Abstract

The utility model provides a suspension bush rotational structure, it includes: with adversary's piece cooperation assembly in the sub vehicle on the frame suspension bush component, be equipped with on the suspension bush component and prevent changeing piece and suspension inner tube, it is equipped with the piece that splines to correspond on the adversary's piece, the suspension inner tube with during the installation of adversary's piece, prevent changeing the piece with the cooperation of the piece that splines, prevent the suspension inner tube follows to change. The utility model discloses still relate to an auto parts and car that has it, only through increase interact prevent changeing with the piece that splines on suspension bush subassembly and adversary's piece, can realize preventing changeing the function of preventing of suspension inner tube that prevents suspension bush subassembly, simple structure, light in weight, it is with low costs, the assembly is convenient.

Description

Suspension bush rotation-proof structure, automobile part with same and automobile

Technical Field

The utility model relates to the field of automotive technology, especially, relate to a suspension bush rotational lock structure, auto parts and car that have it.

Background

With the increasing popularization of electric automobiles, more and more automobile platform cars special for electric automobiles are put into the market. In order to carry out integration, lightweight and compact design, more and more motor suspension systems of pure electric platform vehicle types are integrated with auxiliary frames, so that integration, lightweight and compactness are realized.

In order to realize the purpose, more and more motorcycle types integrate the suspension bush with the auxiliary frame at present, namely directly press-fit the suspension bush into the auxiliary frame, and then pass through the centre bore of the suspension bush inner tube through the bolt, and then are connected with the motor or the suspension support through unilateral tightening.

Due to the particularity of the pure electric platform, the suspension bushings of a plurality of suspension bracket assemblies are usually connected with the motor through single-side tightening, but the risk that the inner pipe of the suspension bushing rotates along with the bolt due to the single-side tightening in the actual operation can cause the deformation and even the tearing of the suspension rubber.

As shown in fig. 1 to 3, in order to solve the problem that the suspension bushing inner tube rotates along with the bolt, in the prior art, a special rotation stopping member 11 'is added to the end surface of the bushing inner tube of the suspension bushing rotation preventing structure 1' and is matched with the rotation stopping structure 21 'of the counterpart member 2' to achieve the rotation stopping function, but the prior art is found through research: still have the following drawbacks:

1. the special anti-rotor parts are mostly steel parts, special anti-corrosion treatment is needed, and the cost is high;

2. the anti-rotor part has complex structure, complex manufacturing process, high manufacturing cost and high weight;

3. the anti-rotor part needs to be in press fit with the suspension bushing in an interference fit mode, the increased manufacturing process reduces the production and manufacturing efficiency, and the production cost is increased;

4. the counter-hand piece matched with the anti-rotation piece has complex structure, heavy weight and difficult manufacture;

5. galvanic corrosion exists between the steel and aluminum parts, which leads to the risk of corrosion and failure for a long time.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a suspension bush rotation-proof structure and have its car of above problem is effectively solved.

The utility model provides a suspension bush rotational lock structure, it includes: the auxiliary frame is provided with a suspension lining assembly which is matched with an opponent part and assembled on the auxiliary frame, the suspension lining assembly is provided with an anti-rotation part and a suspension inner tube, the opponent part is correspondingly provided with an anti-rotation part, and the suspension inner tube is matched with the anti-rotation part to prevent the suspension inner tube from rotating with the opponent part during installation.

In a preferred embodiment, the suspension bushing assembly further comprises a suspension outer tube which is mounted on the front cross beam of the subframe in an interference fit manner, the suspension outer tube and the suspension inner tube are vulcanized into an integral structure through suspension rubber, a central hole is formed in the suspension inner tube along the direction of a central shaft, a mounting hole is correspondingly formed in the opponent part, and the suspension inner tube is in threaded connection with the opponent part through the cooperation of the central hole, the mounting hole and a fastener.

In a preferred embodiment, the rotation preventing member and the rotation preventing member are located at a side portion close to a mounting surface of the suspension inner tube and the counter element, and when the counter element is screwed with the suspension inner tube, the rotation preventing member and the rotation preventing member prevent the suspension inner tube from rotating with the fastener.

In a preferred embodiment, the rotation preventing member is a first protrusion provided on the inner suspension tube near the side of the installation surface, and the rotation preventing member is a second protrusion provided on the counter-element near the side of the installation surface.

In a preferred embodiment, the first protrusion is a cylindrical protrusion structure axially arranged and integrated with the suspension inner tube, or a cylindrical protrusion structure axially arranged and fixedly connected to the suspension inner tube.

In a preferred embodiment, the second protrusion is a protrusion stopping structure axially arranged and integrated with the counterpart member, or a protrusion stopping structure axially arranged and fixed on the counterpart member.

In a preferred embodiment, a cambered groove can be further arranged on a plane of the rotation preventing part, which is close to the rotation preventing part, and when the rotation preventing part on the suspension inner pipe rotates to the rotation preventing part on the counter part along with the fastener, the cambered groove can accommodate the rotation preventing part to limit the circumferential movement of the rotation preventing part.

In a preferred embodiment, the counter element is a motor or a suspension bracket.

The utility model also provides an auto parts, it includes above suspension bush rotation-proof structure.

The utility model also provides an automobile, it includes above suspension bush rotational structure.

The utility model discloses a design a suspension bush rotation-proof structure, only through increase interact prevent changeing with the piece that splines on suspension bush subassembly and adversary's piece, can realize preventing the rotation-proof function of suspension inner tube that prevents suspension bush subassembly, simple structure, light in weight, with low costs, the assembly is convenient.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of one embodiment of an anti-rotation suspension bushing cooperating with a counterpart member in an anti-rotation structure of a suspension bushing provided in the prior art;

FIG. 2 is a schematic view of the structure of the counterpart of FIG. 1;

FIG. 3 is a cross-sectional view of the anti-rotation suspension bushing of FIG. 1 mated with a counterpart member;

FIG. 4 is a schematic structural view of an embodiment of an anti-rotation structure of a suspension bushing connected to a counterpart member to be assembled to a subframe according to the present invention;

FIG. 5 is a schematic view of the suspension bushing assembly of FIG. 4;

FIG. 6 is an exploded view of the suspension bushing assembly of FIG. 5;

FIG. 7 is a schematic cross-sectional view of FIG. 5 taken along a radial direction of the suspension bushing assembly;

FIG. 8 is a schematic structural view of the front cross member of the suspension bushing assembly of FIG. 4 mounted to a subframe via a bushing outer tube;

FIG. 9 is a schematic view of the inner tube of the anti-rotation bushing of FIG. 4 in cooperation with the counter element;

FIG. 10 is a schematic view of the inner tube of the anti-rotation bushing of FIG. 9 in a direction of rotation of the bolt and in a direction of rotation of the inner tube of the suspension to engage the counter element;

FIG. 11 is a schematic view of the structure of the counterpart member of FIG. 9.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the invention, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 4, the utility model provides a suspension bush rotation-proof structure, it includes: with the suspension bush subassembly 1 of opponent part 2 cooperation assembly on sub vehicle frame 3, be equipped with on the suspension bush subassembly 1 and prevent changeing 11 and suspension inner tube 13, correspond on the opponent part 2 and be equipped with the rotation stopping 21, when suspension bush subassembly 1 was installed with opponent part 2, prevent changeing 11 and rotation stopping 21 cooperation, prevent suspension inner tube 13 of suspension bush subassembly 1 from following the commentaries on classics.

The utility model discloses need not increase special anti-rotation part and can realize preventing changeing the function, only through increase interact prevent changeing and only change the piece on suspension bush subassembly and adversary's piece, can realize preventing changeing the function of preventing of suspension inner tube that prevents suspension bush subassembly, simple structure, light in weight, and with low costs.

As shown in fig. 5, 6, 7 and 11, a central hole 130 is disposed on the suspension inner tube 13 along the central axis direction, a mounting hole 200 is correspondingly disposed on the counterpart element 2, and the suspension inner tube 13 is screwed with the counterpart element 2 through the cooperation of the central hole 130, the mounting hole 200 and the fastening element. Specifically, the mounting hole 200 is a threaded hole, the fastening member is a bolt, the bolt is inserted through the mounting hole 200 and the center hole 130, and the bolt is rotated clockwise so that the suspension liner inner pipe is screwed with the counterpart member 2 to be coupled.

In the embodiment of the present invention, the suspension bushing assembly 1 includes the suspension outer tube 12, the suspension outer tube 12 and the suspension inner tube 13 are vulcanized into an integral structure through the suspension rubber 14, and as shown in fig. 4 and fig. 8, in this embodiment, the suspension bushing assembly 1 is installed in the assembly hole 300 of the front cross beam 31 of the subframe 3 through the interference fit of the suspension outer tube 12, and the suspension bushing assembly 1 is fixedly connected in the assembly hole 300 through the suspension outer tube 12, that is, the suspension outer tube 12 is fixed relative to the assembly hole 300; the rotation preventing part 11 and the rotation preventing part 21 are located at the side part close to the mounting surface of the suspension inner tube 13 and the counterpart 2, when the counterpart 2 and the suspension inner tube 13 are screwed by clockwise rotation through a fastener (bolt), the rotation preventing part 11 is matched with the rotation preventing part 21 to prevent the suspension inner tube 13 from rotating along with the fastener, so that the deformation and even the tearing of the suspension rubber 14 between the rotation outer tube 12 and the suspension inner tube 13 can be effectively avoided. In this embodiment, the fastener is preferably a bolt, and since the bolt fastening direction is generally clockwise, it will be appreciated that the rotation preventing member 21 is located clockwise of the rotation preventing member 11 to ensure that the protruding structure can effectively prevent rotation of the suspended inner tube 13.

As shown in fig. 6, 9 and 10, in the embodiment of the present invention, the rotation preventing member 11 is a first protrusion disposed on the inner suspension tube 13 and close to the side portion of the mounting surface, and the rotation preventing member 21 is a second protrusion disposed on the opponent member 2 and close to the side portion of the mounting surface.

Further, first arch can be for laying along the axial and with the integrative cylindricality projecting structure of suspension inner tube 13, perhaps for laying along the axial and the cylindricality projecting structure of rigid coupling on suspension inner tube 13 (fig. 6), because the utility model provides a suspension (bush) inner tube 13 and the protruding anti-rotation structure on it are integrated casting shaping, need not to reuse solitary steel and only ends the rotor part, light in weight, and avoided the steel part anticorrosive treatment to bring the cost-push, also avoided producing galvanic corrosion between steel part and the aluminum alloy bush inner tube and rather than the part inefficacy problem that brings.

For galvanic corrosion, it means: due to different corrosion potentials, dissimilar metals are in the same medium and are in contact with each other or are communicated through other conductors, so that local corrosion of contact parts of the dissimilar metals is caused, and therefore galvanic corrosion is also called contact corrosion or dissimilar (double) metal corrosion. For example, copper plates joined by iron rivets are subject to contact corrosion in humid air, and iron is an anode and is dissolved to be corroded; the galvanic couple formed by the contact of carbon steel and copper in the same electrolyte increases the corrosion of steel compared with the corrosion of steel in the presence of copper alone. And the utility model discloses a suspension inner tube 13 and first protruding (protruding anti-rotation structure) integrated into one piece, so can avoid dissimilar metal to corrode.

Similarly, as shown in fig. 11, the second protrusion is a protruding stopping structure integrated with the counterpart element 2, or a protruding stopping structure fixedly connected to the counterpart element 2, the present invention provides a technical solution that the rotation prevention function of the suspension (bushing) inner tube 13 can be realized only by adding at least one interacting protruding structure on the suspension (bushing) inner tube 13 and the side portion of the counterpart element 2 close to the mounting (end) surface, and the present invention has the advantages of simple structure, light weight, low cost and convenient assembly; in this particular embodiment, the bump stop structure is preferably axially disposed to cooperate with the first bump, and the cylindrical protrusion structure includes, but is not limited to, a cylindrical shape, a square cylindrical shape, or other shape structure capable of providing a detent effect.

Further, an arc groove can be further formed in the plane, close to the anti-rotation part 11, of the anti-rotation part 21, when the anti-rotation part 11 on the suspension inner tube 13 rotates to the anti-rotation part 21 on the counterpart 2 along with the fastener, the arc groove can accommodate the anti-rotation part 21, the anti-rotation part 21 can be better limited to move along the axial direction of the fastener, and the condition that the anti-rotation surface fails is prevented.

In the embodiment provided by the present invention, the opponent part 2 can be a motor or a suspension bracket.

The utility model also provides an auto parts, it includes above suspension bush rotation-proof structure. That is, the anti-rotation structure of the suspension bushing can be applied to automobile parts such as power assembly suspensions and chassis bushings of gasoline vehicles, hybrid vehicles or pure electric vehicles, and naturally, other anti-rotation bushings similar or identical to the technical principle of the anti-rotation structure of the suspension bushing belong to the protection scope of the technical scheme.

The utility model also provides an automobile, it includes above suspension bush rotation-proof structure.

In order to better understand the technical solution provided by the present invention, the present disclosure will be further described with reference to specific embodiments.

The first embodiment is as follows:

the suspension bush assembly 1 provided by the utility model is installed in the assembly hole 300 of the front beam 31 of the auxiliary frame 3 by interference fit (refer to fig. 8), and the protruding structure 11 on the suspension (bush) inner tube 13 of the suspension bush assembly 1 is positioned at the right side (along the Y direction of the whole vehicle) of the suspension bush assembly 1 (refer to fig. 4);

when adversary's piece 2 is the suspension support, the motor with the utility model provides a mounting hole 200 on the suspension support is connected, attaches together motor assembly and the sub vehicle frame 3 of taking the suspension support again. When the docking is completed, the stopper structure (rotation preventing member 21) on the suspension bracket is located at the upper right side of the boss structure (rotation preventing member 11) on the suspension (bushing) inner tube 13 of the suspension bushing assembly 1, and a certain gap is reserved to facilitate the assembly (refer to fig. 9 and 10).

Further, the suspension support and the suspension bush assembly 1 pass through the middle hole 130 of the suspension inner tube 13 of the suspension bush assembly 1 with the bolt to when being connected with the mounting hole 200 (threaded hole) of the suspension support, the bolt tightening rotating direction is clockwise (refer to fig. 5), when the bolt head drives the suspension (bush) inner tube 13 to rotate clockwise, the protruding structure on the suspension inner tube 13 will contact with the stop structure on the suspension support, the stop structure on the suspension support will limit the suspension (bush) inner tube 13 to further rotate, and the rotation prevention function of the suspension (bush) inner tube 13 can be effectively realized.

Example two:

the (anti-rotation) suspension bush assembly 1 is not integrally mounted with the subframe but is mounted in a metal bracket for connection with a motor or other parts.

Example three:

the raised structure on the inner tube 13 of the anti-rotation suspension (bushing) is not integrally formed with the inner tube 13 of the suspension, but is connected with the inner tube 13 by other methods (such as split assembly or welding)

Example four:

the utility model discloses well prevent changeing opponent's piece 2 of suspension bush subassembly 1 is preferred suspension support, when opponent's piece 2 is the motor, should also contain corresponding structure of splining (with the same or similar structure of splining on the suspension support) on the motor.

Example five:

the specific shapes of the protruding structure on the anti-rotation suspension (bushing) inner tube 13 and the stopping structure on the suspension bracket are not limited to the figures shown in the drawings, and other technical schemes such as hook type, claw type, adsorption type and the like which can clamp the suspension inner tube 13 to prevent the suspension inner tube from rotating along with the same or similar rotation stopping principle all belong to the scope of the scheme.

Example six:

the protruding structure on suspension (bush) inner tube 13 can not be located the right side (whole car Y to) of suspension bush subassembly 1, simultaneously because the bolt-up direction is clockwise rotation, then should be located the clockwise direction of preventing changeing the protruding structure on suspension (bush) inner tube 13 to the backstop structure of hand piece 2 to guarantee that protruding structure can effectively only change to suspension inner tube 13.

Example seven:

more than one protruding structure on the inner tube 13 of the anti-rotation suspension (bushing), but the technical solution that the principle of anti-rotation is the same as or similar to that of this patent, falls within the scope of this application.

Example eight:

different combinations of the above embodiments are also within the scope of the present disclosure.

The embodiment of the utility model provides a suspension bush rotation-proof structure has following beneficial effect:

1. the anti-rotation function of the suspension (lining) inner tube 13 can be realized only by adding at least one mutually-acting convex structure on the suspension (lining) inner tube 13 and the side part of the opponent part 2 close to the mounting (end) surface, and the anti-rotation device has the advantages of simple structure, light weight, low cost and convenient assembly;

2. the inner tube 13 of the suspension (bushing) and the convex structure of the side part of the opponent part 2 close to the mounting (end) surface are preferably integrally cast and formed, the process is simple, and the production cost is reduced;

3. the suspension (lining) inner pipe 13 and the protrusion anti-rotation structure on the inner pipe are cast and formed integrally, an independent steel rotor stopping part is not needed, the weight is light, the cost increase caused by the anti-corrosion treatment of the steel part is avoided, and the problems of galvanic corrosion between the steel part and the inner pipe of the aluminum alloy lining and part failure caused by the galvanic corrosion are also avoided.

To sum up, the utility model can realize the rotation prevention function of preventing the suspension inner tube of the suspension bush component only by adding the rotation prevention part and the rotation prevention part which interact with each other on the suspension bush component and the opponent part, and has simple structure, light weight, low cost and convenient assembly; and because the suspension (lining) inner tube, the anti-rotation part of the opponent part and the anti-rotation part are integrally cast and formed, the process is simple and the cost is low.

Above, it is only the preferred embodiment of the present invention, and it is not limited to the present invention in any form, although the present invention has been disclosed with the preferred embodiment, but not limited to the present invention, and any skilled person familiar with the art can make some changes or modifications to equivalent embodiments without departing from the technical scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention all still belong to the technical scope of the present invention.

Claims (10)

1. The utility model provides a suspension bush rotation-proof structure, its characterized in that includes and assembles suspension bush subassembly (1) on sub vehicle frame (3) with opponent's piece (2) cooperation, be equipped with on suspension bush subassembly (1) and prevent rotating member (11) and suspension inner tube (13), it stops to rotate (21) to correspond being equipped with on opponent's piece (2), suspension inner tube (13) with when opponent's piece (2) installation, prevent rotating member (11) with the cooperation of stopping rotating member (21), prevent suspension inner tube (13) follow-up rotation.

2. The suspension bushing anti-rotation structure according to claim 1, wherein the suspension bushing assembly (1) further comprises a suspension outer tube (12) mounted on a front cross beam (31) of the subframe (3) through interference fit, the suspension outer tube (12) and the suspension inner tube (13) are vulcanized into an integral structure through suspension rubber (14), a central hole (130) is formed in the suspension inner tube (13) along a central axis direction, a mounting hole (200) is correspondingly formed in the counter part (2), and the suspension inner tube (13) is in threaded connection with the counter part (2) through the central hole (130), the mounting hole (200) and a fastener.

3. The suspension bushing anti-rotation structure according to claim 2, characterized in that the anti-rotation piece (11) and the anti-rotation piece (21) are located at the side close to the mounting surface of the suspension inner tube (13) and the counterpart piece (2), and when the counterpart piece (2) is screwed with the suspension inner tube (13), the anti-rotation piece (11) and the anti-rotation piece (21) prevent the suspension inner tube (13) from rotating with the fastener.

4. The suspension bushing anti-rotation structure according to claim 3, wherein the anti-rotation member (11) is a first protrusion provided on the suspension inner tube (13) near the side of the mounting surface, and the anti-rotation member (21) is a corresponding second protrusion provided on the counterpart member (2) near the side of the mounting surface.

5. The suspension bushing anti-rotation structure according to claim 4, characterized in that the first protrusion is a cylindrical protrusion structure axially arranged and integrated with the suspension inner tube (13) or a cylindrical protrusion structure axially arranged and fixed on the suspension inner tube (13).

6. Suspension bushing anti-rotation structure according to claim 4, characterized in that the second projection is a projection stop axially arranged and integral with the counter-element (2) or a projection stop axially arranged and fixed on the counter-element (2).

7. The suspension bushing anti-rotation structure according to claim 4, characterized in that a cambered groove is further formed on the plane of the anti-rotation part (21) close to the anti-rotation part (11), and the cambered groove receives the anti-rotation part (21) to limit the circumferential movement of the anti-rotation part (21) when the anti-rotation part (11) on the suspension inner tube (13) rotates to the anti-rotation part (21) on the counter part (2) along with the fastener.

8. The suspension bushing anti-rotation structure according to claim 1, wherein the counterpart (2) is a motor or a suspension bracket.

9. An automobile part characterized by comprising the suspension bushing anti-rotation structure according to any one of claims 1 to 8.

10. An automobile characterized by comprising the suspension bushing anti-rotation structure according to any one of claims 1 to 8.

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