CN212022793U - Support piece, sub vehicle frame assembly and vehicle - Google Patents

Abstract

The embodiment of the utility model provides a support piece, sub vehicle frame assembly and vehicle, wherein, support piece has relative first link and second link each other, and first link is used for being connected with the automobile body lower extreme, and the second link is used for being connected with the upper end that closes on the swing arm mounting point of sub vehicle frame longeron; wherein, the second link has cladding structure, and cladding structure cladding is in the upper end of sub vehicle frame longeron. Through the embodiment of the utility model provides a support piece can promote the dynamic stiffness of swing arm mounting point, and because the one end of connecting the sub vehicle frame longeron on the support piece has cladding structure, the cladding of cladding structure in the upper end of sub vehicle frame longeron, this cladding structure is favorable to the dispersion of the stress of support piece second link to can reduce the fracture situation that support piece appears stress concentration and causes.

Description

Support piece, sub vehicle frame assembly and vehicle

Technical Field

The embodiment of the utility model provides a relate to vehicle technical field, especially relate to a support piece, sub vehicle frame assembly and vehicle.

Background

A subframe stringer in the subframe assembly has a swing arm mounting point for connecting a swing arm. At present, in order to improve the dynamic stiffness of the swing arm mounting point, a support member is generally connected between the vehicle body and the sub-frame longitudinal beam.

However, the end of the support member that connects to the subframe rail is susceptible to cracking due to stress concentrations.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a support piece, sub vehicle frame assembly and vehicle, the main technical problem who solves is: the situation that one end of the support piece connected with the auxiliary frame longitudinal beam cracks due to stress concentration is prevented.

In order to achieve the above object, an embodiment of the present invention provides a supporting member, which has a first connecting end and a second connecting end opposite to each other, wherein the first connecting end is used for connecting with a lower end of a vehicle body, and the second connecting end is used for connecting with an upper end of a mounting point of an adjacent swing arm of a subframe longitudinal beam; the second connecting end is provided with a coating structure, and the coating structure is coated at the upper end of the auxiliary frame longitudinal beam.

In an embodiment of the present invention, the supporting member is a hollow structure, and the second connecting end of the supporting member extends and forms along both sides of the extending direction of the subframe longitudinal beam, and the cladding structure is clad on the upper end of the subframe longitudinal beam and defines a closed cavity with the subframe longitudinal beam.

In an embodiment of the present invention, the support member includes: the upper supporting piece is provided with the first connecting end, and the lower supporting piece is provided with the second connecting end, and one end of the upper supporting piece, which is far away from the first connecting end, is connected with one end of the lower supporting piece, which is far away from the second connecting end; wherein the lower support comprises: a lower first support and a lower second support opposite to each other, the lower first support and the lower second support enclosing the envelope structure.

In one embodiment of the present invention, the upper support member comprises: the support device comprises a flat-plate-shaped upper first support and a flat-plate-shaped upper second support, wherein the upper second support is connected with the upper first support, an obtuse angle is formed at the joint of the upper second support and the upper first support, and the side surface of one end, away from the upper first support, of the upper second support is connected with the outer side surface of the lower first support; wherein the upper support further comprises: the first reinforcing plate is connected with one side of the upper first supporting piece and one side of the upper second supporting piece, and the second reinforcing plate is connected with the other side of the upper first supporting piece and the other side of the upper second supporting piece.

In one embodiment of the present invention, the lower first support member is recessed toward the lower second support member and forms a first recessed rib, and the lower second support member is recessed toward the lower first support member and forms a second recessed rib.

In an embodiment of the present invention, the supporting member gradually contracts and then gradually expands from the first connecting end to the second connecting end.

Based on the same inventive concept, the embodiment of the utility model provides an auxiliary frame assembly, this auxiliary frame assembly includes: a subframe and the support member described above; and the second connecting end of the supporting piece is coated at the upper end of the auxiliary frame close to the mounting point of the swing arm.

In an embodiment of the present invention, the subframe includes: the first auxiliary frame cross beam, the first auxiliary frame longitudinal beam, the second auxiliary frame cross beam and the second auxiliary frame longitudinal beam are sequentially connected end to form a frame structure, the first auxiliary frame cross beam and the second auxiliary frame cross beam are opposite to each other, the first auxiliary frame longitudinal beam and the second auxiliary frame longitudinal beam are opposite to each other, the first auxiliary frame longitudinal beam is provided with a first swing arm mounting point, and the second auxiliary frame longitudinal beam is provided with a second swing arm mounting point; wherein, close to first swing arm mounting point first subframe longeron upper end cladding has one support piece, close to second swing arm mounting point second subframe longeron upper end cladding has one support piece.

In an embodiment of the present invention, the first subframe cross beam has two ends respectively provided with a connecting hole site; wherein, the connecting bolt is arranged at the connecting hole position in a penetrating way and is connected with the longitudinal beam of the vehicle body.

Based on the same inventive concept, the embodiment of the utility model provides a vehicle is provided, this vehicle includes: the vehicle body is provided with a vehicle body longitudinal beam, and a first connecting end of a supporting piece of the auxiliary frame assembly is connected with the lower end of the vehicle body longitudinal beam.

The embodiment of the utility model provides a support piece, sub vehicle frame assembly and vehicle, wherein, support piece has relative first link and second link each other, first link is used for being connected with the automobile body lower extreme, the second link is used for being connected with the upper end that closes on the swing arm mounting point of sub vehicle frame longeron; the second connecting end is provided with a coating structure, and the coating structure is coated at the upper end of the auxiliary frame longitudinal beam. Through the embodiment of the utility model provides a support piece can promote the dynamic stiffness of swing arm mounting point, and because the one end of connecting the sub vehicle frame longeron on the support piece has cladding structure, the cladding of cladding structure in the upper end of sub vehicle frame longeron, this cladding structure is favorable to the dispersion of the stress of support piece second link to can reduce the fracture situation that support piece appears stress concentration and causes.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

FIG. 1 is a schematic illustration of a subframe assembly of the prior art;

fig. 2 is a first angle schematic view of a support member according to an embodiment of the present invention;

fig. 3 is a second angle view of the supporting member according to the embodiment of the present invention;

fig. 4 is a third angle schematic diagram of the supporting member according to the embodiment of the present invention;

fig. 5 is a first angle schematic of a support member (fitting) according to an embodiment of the present invention;

fig. 6 is a second angle schematic view of the support member (assembly) of the embodiment of the present invention;

FIG. 7 is a first angled schematic view of the subframe assembly according to the embodiment of the present invention;

fig. 8 is a second angle schematic view of the subframe assembly according to the embodiment of the present invention;

FIG. 9 is a schematic view of a first subframe rail according to an embodiment of the present invention;

FIG. 10 is a schematic view of a second subframe beam according to an embodiment of the present invention;

FIG. 11 is a partial schematic view of a support member and body rail connection according to an embodiment of the present invention;

fig. 12 is a partial schematic view of a connection between a support member and a body rail according to an embodiment of the present invention.

Description of reference numerals:

30 ' -subframe, 310 ' -first subframe cross member, 320 ' -first subframe longitudinal member, 330 ' -second subframe cross member, 340 ' -second subframe longitudinal member, a1 ' -first swing arm mounting point, a2 ' -second swing arm mounting point;

10-support piece, 110-first connection end, 111-notch, 112-bolt, 120-second connection end, 130-upper support piece, 131-upper first support piece, 132-upper second support piece, 140-lower support piece, 141-lower first support piece, 1411-first recessed rib, 142-lower second support piece, 20-body longitudinal beam, 30-auxiliary frame, 310-first auxiliary frame cross beam, 311-connection hole site, 312-connection bolt, 320-first auxiliary frame longitudinal beam, 330-second auxiliary frame cross beam, 340-second auxiliary frame longitudinal beam, A1-first swing arm mounting point, and A2-second swing arm mounting point.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

In the case of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In the prior art, referring to fig. 1, a subframe 30' includes: a first sub-frame cross member 310 ', a first sub-frame longitudinal member 320', a second sub-frame cross member 330 'and a second sub-frame longitudinal member 340' which are connected end to end in this order and form a frame structure, the first sub-frame cross member 310 'and the second sub-frame cross member 330' are opposed to each other, the first sub-frame longitudinal member 320 'and the second sub-frame longitudinal member 340' are opposed to each other, and the first sub-frame longitudinal member 320 'has a first swing arm mounting point a 1' connecting the first swing arm, and the second sub-frame longitudinal member 340 'has a second swing arm mounting point a 2' connecting the second swing arm.

In general, in order to improve the dynamic stiffness of the swing arm mounting point, a support member is connected between the vehicle body and the subframe longitudinal beam, but the end of the existing support member connected with the subframe longitudinal beam is prone to cracking due to stress concentration.

In order to solve the above technical problem, an embodiment of the present invention provides a supporting member 10, as shown in fig. 2 to 12, the supporting member 10 has a first connecting end 110 and a second connecting end 120 opposite to each other, the first connecting end 110 is used for connecting with a lower end of a vehicle body, and the second connecting end 120 is used for connecting with an upper end of a mounting point of a swing arm adjacent to a subframe longitudinal beam; the second connecting end 120 has a cladding structure, and the cladding structure is clad at the upper end of the subframe longitudinal beam.

Specifically, the first connection end 110 of the support member 10 is used for connecting with a lower end of a vehicle body (for example, a vehicle body longitudinal beam 20), and may be screwed, clamped, or connected in other manners, which is not limited in the embodiment of the present invention.

When the first connection end 110 of the support member 10 is screwed to the lower end of the side member 20, the first connection end 110 of the support member 10 may be provided with a through hole or a notch for a bolt to pass through. As shown in fig. 3 to 12, for example, the first connecting end 110 of the supporting member 10 is opened with a notch 111, and the lower end of the vehicle body longitudinal beam 20 is opened with a connecting hole corresponding to the notch 111, so that when the first connecting end 110 of the supporting member 10 is connected to the lower end of the vehicle body longitudinal beam 20, the bolt 112 is inserted through the notch 111 and the connecting hole on the vehicle body longitudinal beam 20 in sequence. The connection between the supporting piece and the longitudinal beam of the vehicle body is realized through the bolts, so that the connecting structure is simple and the disassembly is convenient.

When the first connecting end 110 of the supporting member 10 is clamped with the lower end of the vehicle body longitudinal beam 20, the circumferential side surface of the first connecting end 10 of the supporting member 10 may be provided with a convex portion, and the lower end of the vehicle body longitudinal beam 20 has a groove matched with the first connecting end 110, and the side wall of the groove has a concave portion matched with the convex portion, so that when the first connecting end 110 of the supporting member 10 is connected with the lower end of the vehicle body longitudinal beam 20, the first connecting end 110 extends into the groove, and the convex portion on the circumferential side surface of the first connecting end 110 is clamped into the concave portion inside the groove at the lower end of the vehicle body; or, the circumferential side surface of the first connection end 110 of the support member 10 may be provided with a concave portion, the lower end of the vehicle body side member 20 has a concave groove matching the first connection end 110, and the side wall of the concave groove has a convex portion matching the concave portion, so that when the first connection end 110 of the support member 10 is connected with the lower end of the vehicle body side member 20, the first connection end 110 is extended into the concave groove, and the concave portion on the circumferential side surface of the first connection end 110 is clamped on the convex portion of the side wall of the concave groove at the lower end of the vehicle body side member 20. The connection between the supporting piece and the vehicle body longitudinal beam is realized through the matching of the concave part and the convex part, so that the connection structure is simple, and the installation speed is high.

The second connecting end 120 is used to connect with the upper end of the sub-frame longitudinal beam (such as the first sub-frame longitudinal beam and the second sub-frame longitudinal beam in the foregoing or in the following) near the swing arm mounting point, where the near swing arm mounting point may be the side of the swing arm mounting point near the first sub-frame cross beam, or the side of the swing arm mounting point near the second sub-frame cross beam. It can be understood that, in order to make the lifting effect of the support member 10 on the dynamic stiffness of the swing arm mounting point better, when the swing arm mounting point is close to the first subframe cross beam, the support member 10 is connected to one side of the swing arm mounting point close to the second subframe cross beam; when the swing arm mounting point is close to the second subframe beam, the support member 10 is connected at the side of the swing arm mounting point close to the first subframe beam, for example: referring to fig. 11, the subframe assembly 100 includes: a subframe 30 and a support member 10, the subframe 30 including: a first subframe cross member 310, a first subframe longitudinal member 320, a second subframe cross member 330 and a second subframe longitudinal member 340 which are connected end to end in sequence and form a frame structure, wherein the first subframe cross member 310 and the second subframe cross member 330 are opposite to each other, the first subframe longitudinal member 320 and the second subframe longitudinal member 340 are opposite to each other, and the first subframe longitudinal beam 320 is provided with a first swing arm mounting point A1 connected with the first swing arm, the second subframe longitudinal beam 340 is provided with a second swing arm mounting point A2 connected with the second swing arm, the first swing arm mounting point A1 and the second swing arm mounting point A2 are both close to the first subframe cross beam 310, so that the supporting piece 10 connected with the upper end of the first subframe longitudinal beam 320 is positioned on one side of the first swing arm mounting point A1 close to the second subframe cross beam 330, and the supporting piece 10 connected with the upper end of the second subframe longitudinal beam 340 is positioned on one side of the second swing arm mounting point A2 close to the second subframe cross beam 330.

The second connecting end 120 of the supporting member 10 is connected to the upper end of the subframe longitudinal beam near the swing arm mounting point, where the upper end refers to a part of the upper half part (including the top surface and the side surface connected to the top surface) that is toward the top surface when the subframe longitudinal beam is divided into the upper half part and the lower half part with equal height, and then the second connecting end 120 of the supporting member 10 is connected to the upper end of the subframe longitudinal beam, which may be connected to the top surface of the subframe longitudinal beam or connected to both the top surface and the side surface.

The second connecting end 120 of the support member 10 is connected to the upper end of the sub-frame longitudinal member adjacent to the mounting point of the swing arm, where the connection may be a threaded connection, such as: second link 120 passes through the bolt and is connected with the upper end that closes on the swing arm mounting point of sub vehicle frame longeron, also can be the joint, for example: the two opposite side surfaces of the subframe longitudinal beam are provided with clamping convex parts, the end surface of the second connecting end 120 is sunken towards the direction of the first connecting end 110, and the inner wall of the sunken part is provided with a clamping concave part, so that the second connecting end 120 is connected with the subframe longitudinal beam through the clamping convex part clamped in the clamping concave part.

The second connecting end 120 of the support member 10 in the above description has a cladding structure for cladding the second connecting end 120 of the support member 10 at the upper end of the subframe longitudinal beam, i.e. at least part of the cladding structure is cladded at the surface of the subframe longitudinal beam adjacent to the upper end of the swing arm mounting point.

In the embodiment, firstly, the supporting piece is respectively connected with the lower end of the vehicle body and the upper end of the auxiliary frame longitudinal beam, so that the connection rigidity between the auxiliary frame longitudinal beam and the vehicle body longitudinal beam can be improved, and meanwhile, the sweeping range of the working frequency of an engine can be avoided, so that the rolling condition caused by the resonance of the engine and the auxiliary frame is reduced; one end of the support piece connected with the auxiliary frame longitudinal beam is connected with the position, close to the swing arm mounting point, of the auxiliary frame longitudinal beam, so that the dynamic stiffness of the swing arm mounting point can be improved, the transmission of noise in the vehicle is optimized, and the influence of road excitation on the interior of the vehicle is reduced; and thirdly, one end of the support piece connected with the auxiliary frame longitudinal beam is provided with a coating structure, the coating structure coats the upper end of the auxiliary frame longitudinal beam, and the coating structure is favorable for dispersing the stress of the second connecting end of the support piece, so that the cracking situation caused by stress concentration of the support piece can be reduced.

In one embodiment of the present invention, as shown in fig. 2-4, the support member 10 is a hollow structure, and the second connecting end 120 of the support member 10 extends along both sides of the extending direction of the subframe longitudinal beam and forms a wrapping structure, which wraps the upper end of the subframe longitudinal beam and defines a closed cavity with the subframe longitudinal beam, in other words, the second connecting end 120 of the support member 10 has a first extending portion connected to one side of the extending direction of the subframe longitudinal beam and a second extending portion connected to the other side of the extending direction of the subframe longitudinal beam, meanwhile, the second connecting end 20 of the support member 10 defines a closed cavity after being connected with the subframe longitudinal beam, the closed cavity can enhance the supporting capacity of the supporting piece, improve the rigidity of the mounting point of the swing arm and reduce the force transmission, and the first extension part and the second extension part can be flat plates.

In one embodiment of the present invention, referring to fig. 2-4, the support member 10 comprises: an upper supporting member 130 having a first connecting end 110 and a lower supporting member 140 having a second connecting end 120, wherein an end of the upper supporting member 130 facing away from the first connecting end 110 is connected with an end of the lower supporting member 140 facing away from the second connecting end 120; wherein the lower support 140 includes: the lower first support 141 and the lower second support 142 are opposite to each other, and the lower first support 141 and the lower second support 142 are enclosed to form a wrapping structure.

Specifically, the support member 10 in the above includes: an upper supporting member 130 having a first connecting end 110 and a lower supporting member 140 having a second connecting end 120, wherein an end of the upper supporting member 130 facing away from the first connecting end 110 is connected to an end of the lower supporting member 140 facing away from the second connecting end 120, in other words, the supporting member 10 includes two parts, respectively: an upper supporting member 130 and a lower supporting member 140, wherein the upper end of the upper supporting member 130 is a first connecting end 110, the lower end is connected with the upper end of the lower supporting member 140, and the lower end of the lower supporting member 140 is a second connecting end 120; the connection between the upper supporting member 130 and the lower supporting member 140 may be a bolt connection, a welding connection, or an integrally formed connection, which is not limited in the embodiment of the present invention; the lower supporter 140 in the above includes: the lower first support 141 and the lower second support 142 are opposite to each other, and the lower first support 141 and the lower second support 142 are enclosed in a covering structure, such as: the lower first supporting member 141 and the lower second supporting member 142 are both U-shaped structures, and the lower first supporting member 141 and the lower second supporting member 142 are buckled to form the hollow lower supporting member 140, or one of the lower first supporting member 141 and the lower second supporting member 142 is U-shaped and the other is flat, and the two are connected to form the hollow lower supporting member 140. It should be noted that the hollow structure herein extends along a connecting line between the first connecting end 110 and the second connecting end 120, that is, it forms a cladding structure in which an end surface of the second connecting end 120, which faces away from the first connecting end 110, is recessed in a direction of the first connecting end 110.

In this embodiment, the wrapping structure of the supporting member is favorable for the dispersion of the stress of the second connecting end of the supporting member, so that the cracking situation caused by stress concentration of the supporting member can be reduced, and the supporting member is simple in structure and easy to manufacture.

In an embodiment of the present invention, referring to fig. 2 to 4, the upper support 130 includes: a flat plate-shaped upper first supporting member 131 and a flat plate-shaped upper second supporting member 132, wherein the upper second supporting member 132 is connected to the upper first supporting member 131 (for example, as shown in fig. 2-4, the upper second supporting member 132 is connected to one edge of the upper first supporting member 131), the connection position of the upper second supporting member 132 and the upper first supporting member 131 forms an obtuse angle, and the side surface of one end of the upper second supporting member 132 away from the upper first supporting member 131 is connected to the outer side surface of the lower first supporting member 141; wherein the upper support 130 further comprises: a first reinforcing plate 133 and a second reinforcing plate 134 facing each other, the first reinforcing plate 133 connecting one sides of the upper first and second supports 131 and 132, and the second reinforcing plate 134 connecting the other sides of the upper first and second supports 131 and 132.

Specifically, the upper support 130 in the above further includes: a first reinforcing plate 133 and a second reinforcing plate 134 facing each other, the first reinforcing plate 133 connecting one sides of the upper first and second supports 131 and 132, and the second reinforcing plate 134 connecting the other sides of the upper first and second supports 131 and 132, in other words, after the upper first and second supports 131 and 132 are connected, one side thereof is connected with the first reinforcing plate 133 and the other side thereof is connected with the second reinforcing plate 134, thereby enhancing the structural stability of the upper support.

In this embodiment, upper portion support piece is simple structure not only, easy preparation, and stability is good moreover.

It should be noted that, for better toughness of the upper support 130, the joint of the upper first support 131 and the upper second support 132 is a smooth arc as shown in fig. 2; secondly, in order to further improve the structural stability of the upper support, two, three or four of the upper first support 131, the upper second support 132, the first reinforcing plate 133 and the second reinforcing plate 134 of the upper support 130 may be integrally formed.

In an embodiment of the present invention, referring to fig. 3, the lower first supporting member 141 is recessed toward the lower second supporting member 142 to form a first recessed rib 1411, and the lower second supporting member 142 is recessed toward the lower first supporting member 141 to form a second recessed rib, i.e. the first recessed rib 1411 and the second recessed rib are both located in the closed cavity, so as to enhance the stability of the structure of the lower supporting member 140, and further improve the dynamic stiffness of the swing arm mounting point.

In an embodiment of the present invention, referring to fig. 2-4, the supporting member 130 gradually contracts and then gradually expands in a direction from the first connecting end 110 to the second connecting end 120, in other words, two ends of the supporting member 10 (e.g., an end of the upper supporting member 130 away from the lower supporting member 140 and an end of the lower supporting member 140 away from the lower supporting member 130) are large, and the middle thereof (e.g., a joint between the upper supporting member 130 and the lower supporting member 140) is small, where the two ends are large and the middle thereof is small, which means that the cross-sectional area of the two ends is larger than that of the middle part. In the present embodiment, the middle portion of the support member 10 (e.g., the joint between the upper support member 130 and the lower support member 140) is easily broken when the vehicle is involved in a collision, so that the subframe side member and the body side member can be better protected.

Based on the same inventive concept, the embodiment of the present invention provides a subframe assembly 100, as shown in fig. 7 to 12, the subframe assembly 100 includes: the subframe 30 and the support member 10 described above; wherein, the second connecting end 120 of the supporting member 10 is wrapped at the upper end of the sub-frame 30 near the swing arm mounting point.

Specifically, the second connecting end 120 of the supporting member 10 is wrapped around the upper end of the sub-frame 30 near the swing arm mounting point, that is, the upper ends of the first sub-frame longitudinal beam 320 and the second sub-frame longitudinal beam 340 near the swing arm mounting point can be wrapped with one supporting member 10.

In one embodiment, a support member is arranged in the subframe assembly, and the support member is respectively connected with the lower end of the body longitudinal beam and the upper end of the subframe longitudinal beam, so that the connection rigidity between the subframe longitudinal beam and the body longitudinal beam can be improved, and meanwhile, the sweeping range of the working frequency of an engine can be avoided, and the rolling condition caused by the resonance of the engine and the subframe can be reduced; one end of the support piece connected with the auxiliary frame longitudinal beam is connected with the position, close to the swing arm mounting point, of the auxiliary frame longitudinal beam, so that the dynamic stiffness of the swing arm mounting point can be improved, the transmission of noise in the vehicle is optimized, and the influence of road excitation on the interior of the vehicle is reduced; and thirdly, one end of the support piece connected with the auxiliary frame longitudinal beam is provided with a coating structure, the coating structure coats the upper end of the auxiliary frame longitudinal beam, and the coating structure is favorable for dispersing the stress of the second connecting end of the support piece, so that the cracking situation caused by stress concentration of the support piece can be reduced.

In an embodiment of the present invention, referring to fig. 7, the subframe 30 includes: the first auxiliary frame cross beam 310, the first auxiliary frame longitudinal beam 320, the second auxiliary frame cross beam 330 and the second auxiliary frame longitudinal beam 340 are sequentially connected end to form a frame structure, the first auxiliary frame cross beam 310 and the second auxiliary frame cross beam 330 are opposite to each other, the first auxiliary frame longitudinal beam 320 and the second auxiliary frame longitudinal beam 330 are opposite to each other, the first auxiliary frame longitudinal beam 320 is provided with a first swing arm mounting point A1, and the second auxiliary frame longitudinal beam 330 is provided with a second swing arm mounting point A2; wherein, the first subframe longeron 320 upper end cladding that is close to first swing arm mounting point A1 has a support piece 10, and the second subframe longeron 330 upper end cladding that is close to second swing arm mounting point A2 has a support piece 10 to can promote the dynamic stiffness of first swing arm mounting point and second swing arm mounting point respectively, and can reduce the support piece and appear the fracture condition that stress concentration caused.

In an embodiment of the present invention, referring to fig. 7, the first subframe cross member 310 has two ends respectively provided with a connecting hole 311; the connecting bolt 312 is inserted through the connecting hole 311 and connected to the body side member 20.

In the embodiment, firstly, compared with the bushing connection in the prior art, the bolt connection can reduce the production cost and simultaneously promote the rigid body mode of the auxiliary frame; and secondly, the bolt connection can increase the connection rigidity of the auxiliary frame and the vehicle body longitudinal beam and simultaneously improve the stability and the safety of the vehicle under the operation working condition.

It should be noted that the embodiment of the present invention provides a support member in a subframe assembly similar to the description of the support member embodiment described above, and has similar beneficial effects to the support member embodiment described above. For the technical details not disclosed in the embodiment of the subframe assembly of the present invention, please refer to the description of the embodiment of the support member in the present invention for understanding, and the description thereof is omitted here.

Based on the same inventive concept, the embodiment of the utility model provides a vehicle is provided, this vehicle includes: in the vehicle body and the subframe assembly 100, the vehicle body has the body side member 20, and the first connecting end 110 of the supporting member 10 of the subframe assembly 100 is connected with the lower end of the body side member 20.

Specifically, the first connecting end 110 of the middle support 10 is provided with a notch 111, the body side member 20 is provided with a hole for adapting the bolt 112, and during assembly, the bolt 112 sequentially penetrates through the notch 111 and the hole for the body side member 20, so that the support and the body side member are connected.

In one embodiment, a support member is arranged in a subframe assembly of the vehicle, and the support member is respectively connected with the lower end of a body longitudinal beam and the upper end of a subframe longitudinal beam, so that the connection rigidity between the subframe longitudinal beam and the body longitudinal beam can be improved, and meanwhile, the scanning range of the working frequency of an engine can be avoided, so that the rolling condition caused by the resonance of the engine and a subframe is reduced; one end of the support piece connected with the auxiliary frame longitudinal beam is connected with the position, close to the swing arm mounting point, of the auxiliary frame longitudinal beam, so that the dynamic stiffness of the swing arm mounting point can be improved, the transmission of noise in the vehicle is optimized, and the influence of road excitation on the interior of the vehicle is reduced; and thirdly, one end of the support piece connected with the auxiliary frame longitudinal beam is provided with a coating structure, the coating structure coats the upper end of the auxiliary frame longitudinal beam, and the coating structure is favorable for dispersing the stress of the second connecting end of the support piece, so that the cracking situation caused by stress concentration of the support piece can be reduced.

It should be noted that the embodiment of the present invention provides a subframe assembly in a vehicle, which is similar to the description of the subframe assembly embodiment described above, and has similar beneficial effects to the subframe assembly embodiment described above. For the technical details not disclosed in the vehicle embodiment of the present invention, please refer to the description of the embodiment of the subframe assembly of the present invention for understanding, and the description thereof is omitted here.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In addition, in the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In addition, in the present invention, unless otherwise explicitly specified or limited, the terms "connected", and the like are to be construed broadly, and may be, for example, a mechanical connection or an electrical connection; the term "connected" refers to a direct connection or an indirect connection through an intermediate medium, and refers to a connection between two elements or an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present invention is understood by those skilled in the art according to specific situations.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A supporting member is characterized in that a supporting member is provided,

the supporting piece is provided with a first connecting end and a second connecting end which are opposite to each other, the first connecting end is used for being connected with the lower end of the vehicle body, and the second connecting end is used for being connected with the upper end of the auxiliary frame longitudinal beam close to the swing arm mounting point;

the second connecting end is provided with a coating structure, and the coating structure is coated at the upper end of the auxiliary frame longitudinal beam.

2. Support according to claim 1,

the supporting piece is of a hollow structure, the second connecting end of the supporting piece extends along two sides of the extending direction of the auxiliary frame longitudinal beam and forms the coating structure, and the coating structure is coated at the upper end of the auxiliary frame longitudinal beam and defines a closed cavity with the auxiliary frame longitudinal beam.

3. Support according to claim 2,

the support member includes: the upper supporting piece is provided with the first connecting end, and the lower supporting piece is provided with the second connecting end, and one end of the upper supporting piece, which is far away from the first connecting end, is connected with one end of the lower supporting piece, which is far away from the second connecting end;

wherein the lower support comprises: a lower first support and a lower second support opposite to each other, the lower first support and the lower second support enclosing the envelope structure.

4. Support according to claim 3,

the upper support includes: the support device comprises a flat-plate-shaped upper first support and a flat-plate-shaped upper second support, wherein the upper second support is connected with the upper first support, an obtuse angle is formed at the joint of the upper second support and the upper first support, and the side surface of one end, away from the upper first support, of the upper second support is connected with the outer side surface of the lower first support;

wherein the upper support further comprises: the first reinforcing plate is connected with one side of the upper first supporting piece and one side of the upper second supporting piece, and the second reinforcing plate is connected with the other side of the upper first supporting piece and the other side of the upper second supporting piece.

5. Support according to claim 3,

the lower first support piece is sunken towards the lower second support piece to form a first sunken rib, and the lower second support piece is sunken towards the lower first support piece to form a second sunken rib.

6. Support according to any one of claims 1 to 5,

the supporting piece gradually shrinks and then gradually expands in the direction from the first connecting end to the second connecting end.

7. A subframe assembly, comprising:

a subframe and the support of any one of claims 1-6;

and the second connecting end of the supporting piece is coated at the upper end of the auxiliary frame close to the mounting point of the swing arm.

8. The subframe assembly of claim 7 wherein,

the sub-frame includes: the first auxiliary frame cross beam, the first auxiliary frame longitudinal beam, the second auxiliary frame cross beam and the second auxiliary frame longitudinal beam are sequentially connected end to form a frame structure, the first auxiliary frame cross beam and the second auxiliary frame cross beam are opposite to each other, the first auxiliary frame longitudinal beam and the second auxiliary frame longitudinal beam are opposite to each other, the first auxiliary frame longitudinal beam is provided with a first swing arm mounting point, and the second auxiliary frame longitudinal beam is provided with a second swing arm mounting point;

wherein, close to first swing arm mounting point first subframe longeron upper end cladding has one support piece, close to second swing arm mounting point second subframe longeron upper end cladding has one support piece.

9. The subframe assembly of claim 8 wherein,

two ends of the first subframe cross beam are respectively provided with a connecting hole site;

wherein, the connecting bolt is arranged at the connecting hole position in a penetrating way and is connected with the longitudinal beam of the vehicle body.

10. A vehicle, characterized by comprising:

a vehicle body having a body rail and the subframe assembly of any of claims 7-9, wherein the first connection end of the support member of the subframe assembly is connected to a lower end of the body rail.

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