CN220518395U - Subframe rail and vehicle - Google Patents

Abstract

The utility model discloses a subframe rail and a vehicle, the subframe rail comprising: the front end of the longitudinal beam rear section is fixedly connected with the rear end of the longitudinal beam front section; and the swing arm installing support is used for installing a swing arm, the swing arm installing support is arranged in the rear section of the longitudinal beam, and the rear section of the longitudinal beam is provided with a swing arm passing opening at the position corresponding to the swing arm installing support. Therefore, the auxiliary frame longitudinal beam can improve the installation accuracy of the installation position of the swing arm, can also ensure the consistency of four-wheel parameters in the vehicle, so that the stability of the vehicle can be improved, the strength and the rigidity of the installation position of the swing arm can be improved, the energy transmitted by the excitation vibration of the tire can be effectively attenuated, the noise in the vehicle can be reduced, and the riding comfort of passengers can be improved.

Description

Subframe rail and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a sub-frame longitudinal beam and a vehicle.

Background

In the prior art, the longitudinal beam is of an integrated structure, so that post-welding machining equipment cannot be arranged at the mounting position of the longitudinal beam and the swing arm mounting bracket, machining cannot be performed on the swing arm mounting position, and further the position accuracy of the swing arm mounting point is relatively poor, so that the operation stability of a vehicle is influenced, in addition, the strength of the swing arm mounting position of the auxiliary frame is weak, the vibration and noise of the whole vehicle are caused by directly influencing the transmission of tire excitation to the vehicle body, and the comfort of the whole vehicle is influenced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide an auxiliary frame rail that can improve the mounting accuracy at the mounting position of the swing arm, and also can ensure the consistency of four-wheel parameters in the vehicle, so that the stability of the vehicle can be improved, and the strength and rigidity at the mounting position of the swing arm can be improved.

The utility model further proposes a vehicle.

An embodiment of a subframe rail according to the first aspect of the utility model comprises: a stringer, the stringer comprising: the front end of the longitudinal beam rear section is fixedly connected with the rear end of the longitudinal beam front section; and the swing arm mounting support is used for mounting a swing arm, the swing arm mounting support is arranged in the rear section of the longitudinal beam, and a swing arm passing port is formed in the rear section of the longitudinal beam at a position corresponding to the swing arm mounting support.

Therefore, the auxiliary frame longitudinal beam can improve the installation accuracy of the installation position of the swing arm, can also ensure the consistency of four-wheel parameters in the vehicle, so that the stability of the vehicle can be improved, the strength and the rigidity of the installation position of the swing arm can be improved, the energy transmitted by the excitation vibration of the tire can be effectively attenuated, the noise in the vehicle can be reduced, and the riding comfort of passengers can be improved.

According to some embodiments of the utility model, the swing arm mounting bracket is disposed within a front end of the rear section of the longitudinal beam, and the swing arm through opening is opened outside the front end of the rear section of the longitudinal beam.

According to some embodiments of the utility model, the swing arm mounting bracket comprises: roof, preceding curb plate and posterior lateral plate, preceding curb plate with the posterior lateral plate connect respectively in the front and back both sides of roof, preceding curb plate with the posterior lateral plate all is provided with the mounting hole, the mounting hole link up the setting in the fore-and-aft direction, the roof with the top fixed connection of longeron rear section, preceding curb plate with the bottom of posterior lateral plate respectively with the bottom fixed connection of longeron rear section, so that swing arm installing support with form the cavity between the longeron rear section.

According to some embodiments of the utility model, a front flange is arranged at the bottom of the front side plate, a rear flange is arranged at the bottom of the rear side plate, an inner flange is arranged at the inner side of the rear side plate, the top plate is welded with the top of the rear section of the longitudinal beam, the front flange and the rear flange are respectively welded with the bottom of the rear section of the longitudinal beam, the outer side of the front side plate and the outer side of the rear side plate are respectively welded with the outer side of the rear section of the longitudinal beam, and the inner flange is welded with the inner side of the rear section of the longitudinal beam.

According to some embodiments of the utility model, the subframe rail further comprises: the nut is arranged on the first reinforcing plate, and the mounting hole, the through hole and the nut are oppositely arranged.

According to some embodiments of the utility model, the subframe rail further comprises: the second reinforcing plate is arranged in the rear section of the longitudinal beam and is fixedly connected with the first reinforcing plate.

According to some embodiments of the utility model, the trailing section of the stringer comprises: the longitudinal beam top plate, the longitudinal beam bottom plate and the longitudinal beam side plates, the longitudinal beam bottom plate is arranged below the longitudinal beam top plate, and the second reinforcing plates are fixedly connected with the longitudinal beam side plates and the longitudinal beam bottom plate respectively.

According to some embodiments of the utility model, the second stiffener includes: strengthen roof and strengthen the curb plate, strengthen the curb plate set up in strengthen the inside and outside both sides of roof, strengthen the curb plate with longeron curb plate fixed connection, strengthen the front end of roof with strengthen the front end of curb plate respectively with first reinforcing plate fixed connection, at least one strengthen the curb plate with longeron bottom plate fixed connection.

According to some embodiments of the utility model, at least one of the reinforcing side plates is provided with a foot fixedly connected to the stringer base plate.

According to an embodiment of the second aspect of the present utility model, a vehicle includes: the subframe rail described above.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural view of a subframe rail according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of a swing arm mounting bracket according to an embodiment of the present utility model disposed at a rear section of a side member;

FIG. 3 is a schematic view of a swing arm mounting bracket welded to a trailing section of a stringer according to an embodiment of the present utility model;

fig. 4 is a schematic view of a structure in which a second reinforcing plate is provided at a rear section of a side member according to an embodiment of the present utility model;

FIG. 5 is a schematic structural view of a swing arm mounting bracket according to an embodiment of the utility model;

FIG. 6 is a schematic view of a swing arm mounting bracket incorporating an internal flange in accordance with an embodiment of the present utility model;

FIG. 7 is a schematic view of the configuration of the front and rear rail sections according to an embodiment of the present utility model;

FIG. 8 is a schematic structural view of a trailing section of a stringer according to an embodiment of the present utility model;

fig. 9 is a schematic structural view of an assembly of a swing arm and a swing arm mounting bracket according to an embodiment of the present utility model.

Reference numerals:

100. a subframe rail;

10. a longitudinal beam front section; 11. the rear section of the longitudinal beam; 111. a stringer top plate; 112. a stringer floor; 113. a stringer side plate;

20. a swing arm mounting bracket; 21. a top plate; 22. a front side plate; 221. front flanging; 23. a rear side plate; 231. carrying out rear flanging; 232. an inner flanging; 24. a mounting hole; 25. welding; 26. a swing arm passing opening;

30. a nut; 31. a first reinforcing plate; 32. a second reinforcing plate; 321. reinforcing the top plate; 322. reinforcing the side plates;

33. a support leg;

40. and (3) swinging arms.

Detailed Description

Embodiments of the present utility model will be described in detail below, with reference to the accompanying drawings, which are exemplary.

An example of an subframe rail 100 according to an embodiment of the present utility model is described below with reference to fig. 1-9, wherein the subframe rail 100 may be applied to a front subframe or a rear subframe, and is described below as being applied to a front subframe.

As shown in fig. 1, a sub-frame rail 100 according to an embodiment of the first aspect of the present utility model includes: a stringer 100 and a swing arm mounting bracket 20, the stringer 100 comprising: the longitudinal beam comprises a longitudinal beam front section 10 and a longitudinal beam rear section 11, wherein the front end of the longitudinal beam rear section 11 is fixedly connected with the rear end of the longitudinal beam front section 10, a swing arm mounting bracket 20 is used for mounting a swing arm 40, the swing arm mounting bracket 20 is arranged in the longitudinal beam rear section 11, and a swing arm passing port 26 is formed in the position of the longitudinal beam rear section 11 corresponding to the swing arm mounting bracket 20.

Specifically, as shown in fig. 1 and 2, the sub-frame rail 100 of the automobile mainly carries tire load excitation and motion excitation, and if the accuracy of the mounting position of the swing arm 40 is poor, the four-wheel line passing rate of the whole automobile and the stability of the whole automobile are affected, and vibration is also caused. Because traditional swing arm installing support 20 adopts weld nut to fix swing arm 40, the easy deformation that produces in the welding process influences the installation accuracy of swing arm 40, consequently, for the installation accuracy that improves swing arm 40, carry out the segmentation design with longeron 100, longeron 100 divide into longeron anterior segment 10 and longeron rear segment 11, can be convenient for arrange the post-weld punching equipment like this, also can leave enough space and process swing arm 40 installation position, specifically, longeron rear segment 11 and swing arm installing support 20 can weld earlier, swing arm 40 can carry out fixed connection through swing arm through mouth 26 and swing arm installing support 20, so, the installation of swing arm 40 and swing arm installing support 20 is fixed, carry out machining to the swing arm 40 installation position department, can promote the installation accuracy of swing arm 40 installation position department like this, can also guarantee the uniformity of four-wheel parameter in the vehicle, thereby can promote the steady performance of operation of vehicle. After machining of the swing arm 40 mounting position is completed, the rear end of the longitudinal beam front section 10 is fixedly connected with the front end of the longitudinal beam rear section 11, so that the influence of the longitudinal beam front section 10 on machining of the swing arm mounting support 20 in the longitudinal beam rear section 11 can be avoided, interference between the longitudinal beam front section 10 and machining equipment can be prevented, the swing arm mounting support 20 and the longitudinal beam rear section 11 are fixedly connected to form a box-shaped structure integrally, the strength and the rigidity of the swing arm 40 mounting position can be improved, the tire excitation vibration transmission energy can be effectively attenuated, vibration and noise in a vehicle can be reduced, and comfort of passengers in the vehicle can be improved.

Therefore, the auxiliary frame longitudinal beam 100 can improve the installation precision of the installation position of the swing arm 40, can also ensure the consistency of four-wheel parameters in the vehicle, so that the stability of the vehicle can be improved, and can also improve the strength and the rigidity of the installation position of the swing arm 40, thereby effectively attenuating the energy transmitted by the tire excitation vibration, reducing the noise in the vehicle and improving the riding comfort of passengers.

According to an embodiment of the present utility model, as shown in fig. 1, a swing arm mounting bracket 20 is provided in the front end of the rear section 11 of the side member, and a swing arm passing port 26 is provided outside the front end of the rear section 11 of the side member. Specifically, the swing arm mounting bracket 20 is located inside the front end of the rear longitudinal beam section 11, and the swing arm mounting bracket 20 and the rear longitudinal beam section 12 enclose a box-shaped structure, which can improve the strength and rigidity of the mounting position of the swing arm 40, and the swing arm through opening 26 is arranged, so that one end of the swing arm 40 can be fixedly connected with the swing arm mounting bracket 20 through the swing arm through opening 26.

According to some embodiments of the present utility model, as shown in fig. 2, the swing arm mounting bracket 20 includes: roof 21, preceding curb plate 22 and posterior lateral plate 23 are connected respectively in the front and back both sides of roof 21, and preceding curb plate 22 and posterior lateral plate 23 all are provided with mounting hole 24, and mounting hole 24 link up in the fore-and-aft direction and set up, roof 21 and the top fixed connection of longeron back section 11, and the bottom of preceding curb plate 22 and posterior lateral plate 23 is connected with the bottom fixed connection of longeron back section 11 respectively to can make the cavity formation between swing arm installing support 20 and the longeron back section 11. Wherein, roof 21 carries out fixed connection with the top of longeron rear end 11, can increase the intensity of swing arm installing support 20 top department, the bottom of preceding curb plate 22 and posterior lateral plate 23 respectively with the bottom fixed connection of longeron rear end 11, can increase the intensity of swing arm installing support 20 bottom department, also can effectively attenuate tire excitation vibration transmission energy, and in addition, the mounting hole 24 that preceding curb plate 22 and posterior lateral plate 23 correspond the setting can be convenient for the bolt wear to establish and install swing arm 40 fixedly, because the front end of longeron rear end is the opening setting, so, can realize the effect of machining mounting hole 24, thereby can improve swing arm 40's installation accuracy. Further, a cavity is formed between the swing arm mounting bracket 20 and the rear longitudinal beam section 11, so that one end of the swing arm 40 can be fixedly connected with the swing arm mounting bracket 20 in the cavity, and the cavity can also be used as an energy absorption cavity, thereby preventing noise.

According to the embodiment of the present utility model, as shown in fig. 2 to 4, a front flange 221 is provided at the bottom of the front side plate 22, a rear flange 231 is provided at the bottom of the rear side plate 23, an inner flange 232 is provided at the inner side of the rear side plate 23, the top plate 21 is welded to the top of the rear section 11 of the longitudinal beam, the front flange 221 and the rear flange 231 are respectively welded to the bottom of the rear section 11 of the longitudinal beam, the outer side of the front side plate 22 and the outer side of the rear side plate 23 are respectively welded to the outer side of the rear section 11 of the longitudinal beam, and the inner flange 232 is welded to the inner side of the rear section 11 of the longitudinal beam. Specifically, the top plate 21 in the swing arm mounting bracket 20 and the top of the rear section 11 of the longitudinal beam are provided with the annular groove bead 25, so that the top plate 21 and the top of the rear section 11 of the longitudinal beam can be fixedly connected through welding, thereby ensuring the connection stability of the top plate 21 and the top of the rear section 11 of the longitudinal beam, the bottom of the front flange 221 and the rear section 11 of the longitudinal beam is provided with the annular groove bead 25, the bottom of the rear flange 231 and the rear section 11 of the longitudinal beam is provided with the annular groove bead 25, so that the front flange 221 and the rear flange 231 can be conveniently and respectively welded and connected with the bottom of the rear section 11 of the longitudinal beam, the connection stability and firmness of the front flange 221 and the rear flange 231 and the bottom of the rear section 11 of the longitudinal beam can be improved, further, the outer sides of the front side plate 22 and the outer sides of the rear section 11 of the longitudinal beam are provided with the bead 25, the welding bead 25 is also arranged on the outer side of the rear side plate 23 and the outer side of the longitudinal beam rear section 11, so that the outer side of the front side plate 22 and the outer side of the rear side plate 23 are welded with the outer side of the longitudinal beam rear section 11, the outer side of the swing arm mounting bracket 20 is more stable and firm to be connected with the outer side of the longitudinal beam rear section 11, the annular welding bead 25 is also arranged on the inner side of the inner flange 232 and the inner side of the longitudinal beam rear section 11, the inner flange 232 is more firm to be connected with the inner side of the longitudinal beam rear section 11, and the top, the bottom, the outer side and the inner side of the swing arm mounting bracket 20 are welded with the longitudinal beam rear section 11, so that the connection strength of the swing arm mounting bracket 20 at the top, the bottom, the outer side and the inner side can be increased, the strength and the rigidity of the swing arm mounting bracket 20 can be integrally improved, and the stability of a vehicle can be improved.

In addition, the welding bead 25 is not arranged on the side edge, close to the front, of the inner side of the swing arm mounting bracket 20, when the swing arm 40 and the swing arm mounting bracket 20 are fastened through bolts, the swing arm mounting bracket 20 can deform, and the swing arm 40 can be fixed, so that the swing arm mounting bracket 20 can be prevented from being too high in rigidity in the fastening direction of the bolts, too much bolt clamping force consumed by the swing arm mounting bracket 20 can be avoided, and abnormal noise of a vehicle under severe working conditions can be prevented.

According to some embodiments of the present utility model, as shown in fig. 5, the sub-frame rail 100 further includes: the nut 30 and the first reinforcing plate 31, the first reinforcing plate 31 is disposed on the rear side plate 23, the first reinforcing plate 23 is provided with a through hole, the nut 30 is disposed on the first reinforcing plate 31, and the mounting hole 24, the through hole and the nut 30 are disposed opposite to each other. Wherein, first reinforcing plate 31 welded connection can further increase the intensity of posterior lateral plate 23 department in swing arm installing support 20 on posterior lateral plate 23, and in addition, the setting of first reinforcing plate 31 can increase the intensity of nut 30 locking department, thereby can make swing arm 40 more firm through swing arm installing support 20 are fixed, the setting of through-hole on the first reinforcing plate 23 can be convenient for the penetration of bolt, the bolt can wear to establish mounting hole 24 in order, the through-hole, finally carry out locking fixed with the bolt through nut 30, thereby can guarantee swing arm 40 and swing arm installing support 20 fixed connection's stability.

According to some embodiments of the present utility model, as shown in fig. 4, the sub-frame rail 100 further includes: the second reinforcing plate 32, the second reinforcing plate 32 is disposed in the trailing section 11 of the side member, and the second reinforcing plate 32 is fixedly connected with the first reinforcing plate 31. Wherein, the second reinforcing plate 32 is located at the rear of the swing arm mounting bracket 20, and the second reinforcing plate 32 is fixedly connected with the first reinforcing plate 31 by welding, so that the rigidity and durability of the swing arm mounting bracket 20 can be further increased.

According to some embodiments of the present utility model, as shown in fig. 2-4, the trailing stringer 11 includes: the longitudinal beam top plate 111, the longitudinal beam bottom plate 112 and the longitudinal beam side plate 113, the longitudinal beam bottom plate 112 is arranged below the longitudinal beam top plate 111, and the second reinforcing plate 32 is fixedly connected with the longitudinal beam side plate 113 and the longitudinal beam bottom plate 112 respectively. Wherein, the second reinforcing plate 32 can play a supporting and reinforcing role on the girder top plate 111 and the girder bottom plate 112, and the strength of the swing arm mounting bracket 20 can be further increased due to the welded connection of the second reinforcing plate 32 and the swing arm mounting bracket 20.

According to an embodiment of the present utility model, as shown in fig. 2 and 4, the second reinforcing plate 32 includes: the reinforced top plate 321 and the reinforced side plates 322, the reinforced side plates 322 are arranged on the inner side and the outer side of the reinforced top plate 321, the reinforced side plates 322 are fixedly connected with the longitudinal beam side plates 113, the front ends of the reinforced top plate 321 and the reinforced side plates 322 are respectively fixedly connected with the first reinforced plate 23, and at least one reinforced side plate 322 is fixedly connected with the longitudinal beam bottom plate 112. Specifically, the reinforcing side plates 322 are disposed on the inner and outer sides of the reinforcing top plate 321, the reinforcing side plates 322 are disposed in the trailing stringer section 11, so that the reinforcing side plates 322 can increase the strength of the inner and outer sides of the trailing stringer section 11, the front ends of the reinforcing top plate 321 and the reinforcing side plates 322 are respectively fixedly connected with the first reinforcing plate 23, so that the strength of the swing arm mounting bracket 20 can be further increased, and also, at least one reinforcing side plate 322 is fixedly connected with the trailing stringer bottom plate 112, so that the connection strength of the reinforcing side plates 322 with the trailing stringer bottom plate 112 can be increased, so that the strength of the swing arm mounting bracket 20 at the bottom can be further increased.

According to some embodiments of the present utility model, as shown in fig. 4, at least one reinforcing side plate 322 is provided with a leg 33, and the leg 33 is fixedly connected to the side rail floor 112. Wherein, the setting of stabilizer blade 33 on the reinforcing curb plate 322 can be convenient for strengthen the fixed connection of curb plate 322 and longeron bottom plate 112, and further, stabilizer blade 33 can set up to a plurality ofly, and a plurality of stabilizer blades 33 and longeron bottom plate 112 fixed connection can further increase the area of contact of stabilizer blade 33 and longeron bottom plate 112 to can make stabilizer blade 33 and longeron bottom plate 112 connection's more stable.

According to an embodiment of the second aspect of the present utility model, a vehicle includes: the subframe rail 100 of the above embodiment.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A subframe rail (100), comprising:

the longitudinal beam comprises a longitudinal beam front section (10) and a longitudinal beam rear section (11), wherein the front end of the longitudinal beam rear section (11) is fixedly connected with the rear end of the longitudinal beam front section (10); and

swing arm installing support (20), swing arm installing support (20) are used for installing swing arm (40), swing arm installing support (20) set up in longeron back end (11), longeron back end (11) with swing arm passing through mouth (26) have been seted up in the position department that corresponds of swing arm installing support (20).

2. The subframe rail (100) of claim 1, wherein the swing arm mounting bracket (20) is disposed within a front end of the rail rear section (11), the swing arm passage opening (26) being open outboard of the front end of the rail rear section (11).

3. The subframe rail (100) of claim 1, wherein said swing arm mounting bracket (20) comprises: roof (21), preceding curb plate (22) and posterior lateral plate (23), preceding curb plate (22) with posterior lateral plate (23) connect respectively in both sides around roof (21), preceding curb plate (22) with posterior lateral plate (23) all are provided with mounting hole (24), mounting hole (24) link up the setting in the fore-and-aft direction, roof (21) with the top fixed connection of longeron rear section (11), preceding curb plate (22) with the bottom of posterior lateral plate (23) respectively with the bottom fixed connection of longeron rear section (11), so that swing arm installing support (20) with form the cavity between longeron rear section (11).

4. The subframe rail (100) according to claim 3, wherein a front flange (221) is provided at the bottom of the front side plate (22), a rear flange (231) is provided at the bottom of the rear side plate (23), an inner flange (232) is provided at the inner side of the rear side plate (23), the top plate (21) is welded to the top of the rear side rail section (11), the front flange (221) and the rear flange (231) are welded to the bottom of the rear side rail section (11), the outer side of the front side plate (22) and the outer side of the rear side plate (23) are welded to the outer side of the rear side rail section (11), and the inner flange (232) is welded to the inner side of the rear side rail section (11).

5. The subframe rail (100) of claim 3, further comprising: nut (30) and first reinforcing plate (31), first reinforcing plate (31) set up in on posterior lateral plate (23), be provided with the through-hole on first reinforcing plate (31), nut (30) set up in on first reinforcing plate (31), mounting hole (24) the through-hole with nut (30) set up relatively.

6. The subframe rail (100) of claim 5, further comprising: the second reinforcing plate (32), the second reinforcing plate (32) set up in longeron back section (11) and with first reinforcing plate (31) fixed connection.

7. The subframe rail (100) of claim 6, wherein said rail rear section (11) comprises: longeron roof (111), longeron bottom plate (112) and longeron curb plate (113), longeron bottom plate (112) set up in the below of longeron roof (111), second reinforcing plate (32) still respectively with longeron curb plate (113) with longeron bottom plate (112) fixed connection.

8. The subframe rail (100) of claim 7, wherein said second reinforcement plate (32) comprises: strengthen roof (321) and strengthen curb plate (322), strengthen curb plate (322) set up in strengthen the inside and outside both sides of roof (321), strengthen curb plate (322) with longeron curb plate (113) fixed connection, strengthen the front end of roof (321) with strengthen the front end of curb plate (322) respectively with first reinforcing plate (31) fixed connection, at least one strengthen curb plate (322) with longeron bottom plate (112) fixed connection.

9. The subframe rail (100) of claim 8, wherein at least one of said reinforcing side plates (322) is provided with a foot (33), said foot (33) being fixedly connected to said rail floor (112).

10. A vehicle, characterized by comprising: the subframe rail (100) of any one of claims 1-9.