Auxiliary frame bushing quick-change structure and auxiliary frame comprising same

Abstract

The utility model provides an auxiliary frame bushing quick-change structure and including the same, the auxiliary frame bushing quick-change structure includes open type vehicle body casing pipe, neck bush pipe and fastening component, the vehicle body casing pipe is fixedly installed on the left and right longitudinal beams of the auxiliary frame, the neck bush pipe is installed in the vehicle body casing pipe, the fastening component is installed on the neck bush pipe, and the opening type vehicle body casing pipe is fixedly installed on the left and right longitudinal beams of the auxiliary frame. The fastening assembly is installed at the opening of the vehicle body sleeve and used for being fastened to the opening of the vehicle body sleeve for deformation. According to the utility model, a proper vehicle body lining scheme can be quickly found in the whole vehicle NVH development verification stage, so that the development progress of the whole vehicle is promoted. The integrated sleeve structure can guarantee the capacity of efficiently replacing the lining, and meanwhile, the size matching precision between the sleeve and the lining is guaranteed. The structure that the bushing is clamped and deformed after being tightened is adopted, the interference magnitude of matching of the bushing and the sleeve can be increased, the bushing has a certain bushing extrusion force, and the safety of the bushing in the whole vehicle NVH development verification process is ensured.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts, in particular to a sub-frame bushing quick-change structure and a sub-frame comprising the same. Background Art

[0002] In the existing technology, with the development of automobile technology, various vehicle manufacturers have paid more attention to improving the performance of vehicles. In recent years, they have paid particular attention to the NVH (noise, vibration and harshness) performance of the vehicle to improve user perception.

[0003] At the same time, with improved living standards, people are no longer content with using cars as a means of transportation; they are now placing greater emphasis on vehicle performance and road noise. Consequently, various elastic components, such as subframe bushings, have become a key area of ​​focus and adjustment for OEMs.

[0004] In order to more conveniently try out bushings with different performances during the debugging and development phase, and to efficiently and accurately find the appropriate body bushing stiffness solution, the subframe quick-change bushing structure is widely used in the vehicle design, development and verification phase.

[0005] Figure 1 This is a schematic diagram of the structure of the subframe and body sleeve in the prior art. Figure 1 As shown, the rear subframe welding assembly is usually composed of front / rear cross beams, left and right longitudinal beams, body sleeves and various brackets.

[0006] Figure 2 The following is a schematic diagram of the structure of a vehicle body sleeve in the prior art. The vehicle body sleeve is a tubular cylinder, typically a seamless round tube. The vehicle body sleeve is characterized by high dimensional accuracy and minimal deformation after welding.

[0007] However, such a sleeve structure requires specialized pressing equipment to press in or out the bushing, which cannot meet the needs of quickly replacing bushings during the trial production and verification phase, or efficiently finding a bushing solution that meets the NVH targets of the entire vehicle.

[0008] In view of this, the inventor of the present utility model has designed a subframe bushing quick-change structure and a subframe including the same, in order to overcome the above technical problems. Utility Model Content

[0009] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the sleeve structure of the subframe and the vehicle body requires professional pressing equipment to press in or press out the bushing, which cannot meet the rapid replacement requirements in the trial production and verification stage, and provide a subframe bushing quick-change structure and a subframe including the same.

[0010] The utility model solves the above technical problems through the following technical solutions:

[0011] A subframe bushing quick-change structure is characterized in that the subframe bushing quick-change structure includes an open body sleeve, an inner sleeve and a fastening assembly, the body sleeve is fixedly installed on the left and right longitudinal beams of the subframe, the inner sleeve is installed in the body sleeve, and the fastening assembly is installed at the opening of the body sleeve and is used to fasten to the opening of the body sleeve to deform.

[0012] According to an embodiment of the present invention, the vehicle body sleeve includes an open sleeve and a projection welding bolt, and the projection welding bolt is fixed at the opening of the open sleeve.

[0013] According to one embodiment of the present invention, the subframe bushing quick-change structure further includes an inner lining gasket, which is mounted on the projection welding bolt and is located in the opening of the open sleeve.

[0014] According to one embodiment of the present invention, the inner lining gasket is in an inverted U shape.

[0015] According to one embodiment of the present invention, the fastening assembly includes an anti-loosening washer and an anti-loosening nut, and the anti-loosening washer and the anti-loosening nut are sequentially installed on the projection welding bolt for tightening the open sleeve.

[0016] According to one embodiment of the present invention, the anti-loosening gasket is a double-layer anti-loosening gasket with teeth.

[0017] According to one embodiment of the present invention, the fastening assembly further includes a reinforcing gasket, which is installed between the anti-loosening gasket and the projection welding bolt.

[0018] According to one embodiment of the present invention, the number of the anti-loosening nuts is 2 to 4.

[0019] The utility model also provides a sub-frame, which is characterized in that the sub-frame includes the sub-frame bushing quick-change structure as described above.

[0020] The positive progress effect of this utility model is:

[0021] The utility model subframe bushing quick-change structure and the subframe including the same have the following advantages:

[0022] 1. Quickly identify the appropriate body bushing solution during the vehicle NVH development and verification phase, thereby accelerating the progress of vehicle-related development.

[0023] 2. The integrated sleeve structure can ensure the ability to efficiently replace the sleeve while ensuring the dimensional matching accuracy between the sleeve and the sleeve.

[0024] 3. The structure that deforms after tightening can increase the interference fit between the bushing and the sleeve, so that it has a certain bushing press-out force, ensuring its safety during vehicle NVH development and verification. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which the same reference numerals represent the same features throughout, wherein:

[0026] Figure 1 It is a structural diagram of a subframe and a body sleeve in the prior art.

[0027] Figure 2 It is a structural diagram of a vehicle body sleeve in the prior art.

[0028] Figure 3 This is a schematic diagram of the subframe bushing quick-change structure of the utility model being installed on the subframe.

[0029] Figure 4 This is a structural diagram of the vehicle body sleeve in the subframe bushing quick-change structure of the utility model.

[0030] Figure 5 This is an exploded schematic diagram of the vehicle body sleeve in the subframe bushing quick-change structure of the present utility model.

[0031] Figure 6 This is a schematic structural diagram of the auxiliary frame bushing quick-change structure of the utility model.

[0032] Figure 7 This is an exploded schematic diagram of the subframe bushing quick-change structure of the utility model.

[0033] Reference numerals

[0034] Body casing 10

[0035] Liner casing 20

[0036] Open casing 11

[0037] Projection welding bolt 12

[0038] Liner gasket 30

[0039] Anti-loosening gasket 40

[0040] Lock nut 50

[0041] Reinforced gasket 60

[0042] Subframe left and right longitudinal beams 100 DETAILED DESCRIPTION

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0044] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

[0045] Wherever possible, the same reference numerals will be used throughout the drawings to refer to the same or like parts.

[0046] In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the specification of the present invention may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article.

[0047] Furthermore, it is required that the present invention be understood not only by the actual terms used but also by the meanings connoted by each term.

[0048] Figure 3 This is a schematic diagram of the subframe bushing quick-change structure of the utility model being installed on the subframe.

[0049] Figure 4 This is a structural diagram of the vehicle body sleeve in the subframe bushing quick-change structure of the utility model.

[0050] Figure 5 This is an exploded schematic diagram of the vehicle body sleeve in the subframe bushing quick-change structure of the present utility model.

[0051] Figure 6 This is a schematic structural diagram of the auxiliary frame bushing quick-change structure of the utility model.

[0052] Figure 7 This is an exploded schematic diagram of the subframe bushing quick-change structure of the utility model.

[0053] like Figures 3 to 7 As shown, the present invention discloses a subframe bushing quick-change structure, which includes an open body sleeve 10, an inner sleeve 20, and a fastening assembly. The body sleeve 10 is fixedly mounted on the left and right longitudinal beams 100 of the subframe, and the inner sleeve 20 is mounted inside the body sleeve 10. The fastening assembly is mounted at the opening of the body sleeve 10 and is used to fasten to the deformation of the opening of the body sleeve 10.

[0054] Preferably, the vehicle body sleeve 10 includes an open sleeve 11 and a projection welding bolt 12 . The projection welding bolt 12 is fixed to the opening of the open sleeve 11 , and welding between the two needs to be completed first.

[0055] Furthermore, the subframe bushing quick-change structure further includes an inner lining gasket 30, which is mounted on the projection welding bolt 12 and located in the opening of the open sleeve 11. The inner lining gasket 30 is preferably in an inverted U-shape.

[0056] The inner lining sleeve 20 and the inner lining gasket 30 are used to prevent the open body sleeve 10 from being deformed and maintain the stability of its size when the open body sleeve 10 is welded to the subframe assembly, without the need for electrophoresis.

[0057] Preferably, the fastening assembly includes a locking washer 40 and a locking nut 50 for use when replacing a bushing of the subframe. The locking washer 40 and the locking nut 50 are sequentially mounted on the projection welding bolt 12 for tightening the open sleeve 11.

[0058] The anti-loosening washer 40 is preferably a double-layer toothed anti-loosening washer. The anti-loosening nut 50 is preferably a nut with an anti-loosening function.

[0059] The number of the anti-loosening nuts 50 here can preferably be 2 to 4 (applied to each open-type vehicle body bushing) to strengthen the tightening and prevent the bushing from loosening.

[0060] Further preferably, the fastening assembly further comprises a reinforcing washer 60, which is installed between the anti-loosening washer 40 and the projection welding bolt 12. The reinforcing washer 60 is preferably a washer that strengthens the overall structure of the sleeve.

[0061] In the utility model of the subframe bushing quick-change structure, the open body sleeve 10 replaces the existing mass-produced sleeve (such as Figure 1 and Figure 2 The bushings are welded to the left and right longitudinal beams of the subframe to improve the efficiency of bushing replacement and to quickly find the appropriate bushing stiffness solution during the development phase.

[0062] After the open body sleeve 10 and other conventional parts are welded together to form a subframe, the lining sleeve 20 and the lining gasket 30 are removed from the open body sleeve 10 and the subframe assembly is subjected to complete electrophoresis.

[0063] The utility model also provides a sub-frame, which includes the sub-frame bushing quick-change structure described above.

[0064] According to the above structural description, the use process of the subframe bushing quick-change structure of the utility model is as follows:

[0065] First, the open vehicle body sleeve 10 is loosened using a tool and the bushing is placed therein.

[0066] Then, insert the reinforcing gasket 60 and the anti-loosening gasket 40 in sequence, and use a tool to tighten the anti-loosening nut 50 until the opening of the open body sleeve 10 is deformed, so that it has a certain bushing pressing force to prevent the bushing from falling out during use (the opening will be deformed when tightened to more than 70Nm).

[0067] The utility model discloses a quick-change structure for a subframe bushing, which is suitable for the quick replacement of a subframe body bushing and can improve the efficiency of NVH development and design of a whole vehicle.

[0068] Compared with the traditional vehicle body sleeve structure, the utility model has the advantages of rapid replacement, reuse, and reduced NVH development costs.

[0069] At the same time, its integrated open sleeve structure can take into account the stability of the sleeve size.

[0070] In summary, the subframe bushing quick-change structure of the present invention and the subframe including the same have the following advantages:

[0071] 1. Quickly identify the appropriate body bushing solution during the vehicle NVH development and verification phase, thereby accelerating the progress of vehicle-related development.

[0072] 2. The integrated sleeve structure can ensure the ability to efficiently replace the sleeve while ensuring the dimensional matching accuracy between the sleeve and the sleeve.

[0073] 3. The structure that deforms after tightening can increase the interference fit between the bushing and the sleeve, so that it has a certain bushing press-out force, ensuring its safety during vehicle NVH development and verification.

[0074] For those skilled in the art, the above invention disclosure is merely an example and does not constitute a limitation to the present application.

[0075] Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and amendments to this application. Such modifications, improvements, and amendments are suggested in this application, and therefore such modifications, improvements, and amendments remain within the spirit and scope of the exemplary embodiments of this application.

[0076] At the same time, this application uses specific terms to describe the embodiments of this application, such as "one embodiment," "an embodiment," and / or "some embodiments" to refer to a certain feature, structure, or characteristic related to at least one embodiment of this application.

[0077] Therefore, it should be emphasized and noted that "one embodiment," "an embodiment," or "an alternative embodiment" mentioned twice or more in different places in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics of one or more embodiments of the present application may be appropriately combined.

[0078] Similarly, it should be noted that in order to simplify the description disclosed in this application and thereby facilitate the understanding of one or more embodiments of the invention, in the foregoing description of the embodiments of this application, multiple features are sometimes grouped into one embodiment, drawing or description thereof.

[0079] However, this method of disclosure does not imply that the subject matter of the application requires more features than are recited in the claims. Indeed, an embodiment may feature less than all features of a single disclosed embodiment.

[0080] Although specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples and the scope of protection of the present invention is defined by the appended claims.

[0081] Those skilled in the art may make various changes or modifications to these implementations without departing from the principles and essence of the present invention, but these changes and modifications shall fall within the scope of protection of the present invention.

Claims

1. A subframe bushing quick-change structure, characterized in that: The subframe bushing quick-change structure includes an open body sleeve, an inner sleeve and a fastening assembly. The body sleeve is fixedly installed on the left and right longitudinal beams of the subframe, the inner sleeve is installed in the body sleeve, and the fastening assembly is installed at the opening of the body sleeve and is used to fasten to the opening of the body sleeve to deform.

2. The subframe bushing quick-change structure according to claim 1, characterized in that: The vehicle body sleeve includes an open sleeve and a projection welding bolt, and the projection welding bolt is fixed at the opening of the open sleeve.

3. The subframe bushing quick-change structure according to claim 2, characterized in that: The sub-frame bushing quick-change structure further includes an inner lining gasket, which is mounted on the projection welding bolt and is located in the opening of the open sleeve.

4. The subframe bushing quick-change structure according to claim 3, characterized in that: The inner lining gasket is in an inverted U shape.

5. The subframe bushing quick-change structure according to claim 3, characterized in that: The fastening assembly includes a locking washer and a locking nut, which are sequentially mounted on the projection welding bolt for tightening the open sleeve.

6. The subframe bushing quick-change structure according to claim 5, characterized in that: The anti-loosening gasket is a double-layer anti-loosening gasket with teeth.

7. The subframe bushing quick-change structure according to claim 6, wherein: The fastening assembly further includes a reinforcing washer installed between the anti-loosening washer and the projection welding bolt.

8. The subframe bushing quick-change structure according to claim 5, wherein: The number of the anti-loosening nuts is 2 to 4.

9. A subframe, characterized in that: The subframe includes the subframe bushing quick-change structure according to any one of claims 1 to 8.

Images