CN219524015U - Auxiliary frame with tower structure - Google Patents

Abstract

The utility model relates to a subframe with a tower structure, which comprises a tower and a frame body, wherein each tower comprises a first cover body and a second cover body, a cover opening of the second cover body is circumferentially inserted into a cover opening of the first cover body, a cover opening edge of the second cover body is circumferentially overlapped with a cover opening edge of the first cover body to form a welding joint, a mouth edge at the outer side of the upper end of the cover opening of the first cover body and a mouth edge at the outer side of the upper end of the cover opening of the second cover body are respectively sunken and spliced into a first mounting hole, a top opening edge of the cover opening of the second cover body is outwards turned to form a first flanging, a top opening edge of the cover opening of the first cover body extends towards the direction of the second cover body to form a first extending edge, the first extending edge is overlapped with the upper side and the lower side of the first flanging to form the welding joint, and a first connecting hole penetrating through the first mounting hole is formed in the top opening edge of the cover opening of the first cover body. The tower has high structural strength and good durability, and can prevent the auxiliary frame from moving backwards to be embedded into the passenger cabin during collision, thereby ensuring the life safety of drivers and passengers.

Description

Auxiliary frame with tower structure

Technical Field

The utility model relates to the field of automobile chassis parts, in particular to an auxiliary frame of an auxiliary frame tower structure.

Background

The auxiliary frame is a framework of a front axle and a rear axle and is an important component of an automobile chassis, and the auxiliary frame has the main effects of weakening the impact of road vibration on the automobile body, improving the connection rigidity of a suspension system, improving the comfort and stability of the automobile in the running process, reducing the noise caused by the engine and the road vibration, and improving the silence level in an automobile cabin.

Further, the tower structure mainly plays the following roles in the auxiliary frame: (1) connecting the suspension system to the vehicle body via a tower; (2) The control arm is connected so as to bear the load brought by the control arm; (3) The tower falls off during collision, thereby protecting the cockpit from being damaged by collision and protecting the life safety of drivers and passengers. For example, chinese patent No. ZL202122901516.1 (issued notice No. CN 216232560U) for tower structure of automobile subframe and automobile, chinese patent No. ZL 201921620860.X (issued notice No. CN 210653335U) for tower outer panel of automobile chassis front subframe.

However, the structural strength and durability of the existing tower are still further improved, and the existing tower structure is closed, so that when a vehicle collides, bolts between the tower structure and the vehicle body are not easy to fall off, the auxiliary frame and the vehicle body accessories are separated and fail, and energy generated by the vehicle collision is transmitted to the passenger cabin through the auxiliary frame, so that the life safety of drivers and passengers is dangerous.

Disclosure of Invention

The utility model aims to provide a subframe with a tower structure, which is simple in structure, high in structural strength and good in durability.

The second technical problem to be solved by the utility model is to provide the auxiliary frame with the tower structure, which can prevent the auxiliary frame from moving backwards to be embedded into the passenger cabin when the vehicle collides in the prior art.

The third technical problem to be solved by the utility model is to provide a subframe with a tower structure, which is convenient to assemble and connect with other parts in the prior art.

The utility model solves at least one of the technical problems by adopting the following technical proposal: an auxiliary frame with a tower structure comprises two towers and a frame body, wherein the two towers are respectively arranged at the left side and the right side of the front end of the frame body,

each tower comprises a first cover body and a second cover body which are arranged oppositely in the front-back direction and extend up and down respectively, wherein the cover opening of the second cover body is inserted into the cover opening of the first cover body along the circumferential direction, the cover opening edge of the second cover body is overlapped with the cover opening edge of the first cover body along the circumferential direction to form a welding seam,

and, the mouth edge outside the upper end of the first cover body cover mouth and the mouth edge outside the upper end of the second cover body cover mouth are respectively sunken and spliced into a first mounting mouth for mounting the vehicle body accessory, the top mouth edge of the second cover body cover mouth is turned outwards to form a first flanging, the top mouth edge of the first cover body cover mouth extends towards the second cover body to form a first extending edge, the first extending edge is overlapped with the first flanging up and down to form a welding seam, and a first connecting hole which penetrates through the first mounting mouth and is used for being connected with the vehicle body accessory is formed in the top mouth edge of the first cover body cover mouth.

Further, the frame body is of a hollow structure, the left side and the right side of the front end of the frame body are respectively provided with a first installation notch along the front-back direction, the left side and the right side of the rear end of the frame body are respectively provided with a second installation notch along the front-back direction, the inner side of the lower end of each tower is respectively embedded in the rear end corresponding to the first installation notch and welded and fixed with the opening edge of the tower along the length direction, the front end of each first installation notch is used for the front point sleeve insertion of the control arm, and each second installation notch is used for the rear point sleeve insertion of the control arm. Thus, each tower can be firmly installed on the frame body, and the control arm is used for transmitting the load of the transverse direction (namely left-right direction) and the longitudinal direction (namely braking and starting direction) of the vehicle to the auxiliary frame.

Further, the first cover body in each tower is respectively positioned at the front side of the corresponding second cover body, the lower end of the first cover body of each tower is respectively provided with a first mounting point for fixing the rear end of the front point sleeve of the control arm, the front side opening edge of each first mounting notch is provided with a second mounting point for fixing the front end of the front point sleeve of the control arm along the left-right direction,

the upper opening edge of each second installation notch is respectively provided with a third installation point for fixing the upper end of the rear point sleeve of the control arm, and the lower opening edge is respectively provided with a fourth installation point for fixing the lower end of the rear point sleeve of the control arm. So that the control arm can be firmly mounted on the subframe.

Further, the upper end of the second cover body of each tower is respectively provided with a fifth mounting point for fixing with the vehicle body accessory, so that the tower is favorably and firmly connected with the vehicle body accessory.

Further, the mounting seats for mounting the extension beam are respectively fixed on the left end part and the right end part of the front end face of the frame body, so that the extension beam is convenient to mount on the auxiliary frame.

Further, a first installation position for installing the engine suspension pull rod is arranged in the center of the front end of the frame body, so that the engine suspension pull rod is conveniently installed on the auxiliary frame.

Further, the left side, the right side and the rear side of the first installation position on the top surface of the frame body are respectively provided with a sixth installation point for installing the steering gear, so that the steering gear is conveniently installed on the auxiliary frame.

Further, seventh mounting points for mounting the stabilizer bar are respectively arranged on the top surface of the frame body and on the inner front side of each third mounting point, so that the stabilizer bar can be conveniently mounted on the left side and the right side of the frame body respectively.

Further, the edges of the first extending edges on the first cover bodies are respectively located at the outer sides of the edges of the corresponding first flanging, so that the first extending edges and the first flanging can be firmly welded and fixed, and the strength of the internal structure of each tower is further improved.

Compared with the prior art, the utility model has the advantages that: each tower comprises a first cover body and a second cover body, the structure is simple, the cover opening of the second cover body is circumferentially inserted into the cover opening of the first cover body, and the cover opening edge of the second cover body and the cover opening edge of the first cover body are circumferentially overlapped to form a welding seam, so that the structural strength and durability of the tower are ensured. And by forming the first mounting opening and the first connecting hole, the connection assembly of the auxiliary frame and the vehicle body accessory is facilitated.

The first connecting hole is an opening hole, so that when a vehicle collides, the bolt connected in the first connecting hole can be separated from the tower through the opening in the first connecting hole, the auxiliary frame is separated from the vehicle body, the auxiliary frame is sunk under the action of gravity of the auxiliary frame after the auxiliary frame is separated from the vehicle body, the auxiliary frame is prevented from moving backwards and being embedded into the passenger cabin, and the life safety of drivers and passengers is ensured. And the design of the first extension edge is convenient for forming the first connecting hole, and the first extension edge and the first turning edge are overlapped up and down to form a welding seam, so that the structural strength and durability of the tower can be further ensured.

Drawings

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

FIG. 2 is a schematic view of the structure of FIG. 1 in another direction;

FIG. 3 is a schematic view of the structure of FIG. 1 in yet another direction;

FIG. 4 is a partially exploded view of a subframe according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a tower according to an embodiment of the present utility model;

FIG. 6 is an exploded view of the tower according to the embodiment of the present utility model;

fig. 7 is a schematic view of the structure of fig. 6 in another direction.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

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 purposes of 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 because the disclosed embodiments of the present utility model may be arranged in different orientations, these directional terms are merely for illustration and should not be construed as limitations, such as "upper", "lower" are not necessarily limited to orientations opposite or coincident with the direction of gravity. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly.

As shown in fig. 1 to 7, an auxiliary frame with a tower structure comprises two towers 2 and a frame body 1, wherein the two towers 2 are respectively arranged at the left side and the right side of the front end of the frame body 1. Each of the towers 2 includes a first cover 21 and a second cover 22 which are disposed opposite to each other and extend up and down, wherein a cover opening of the second cover 22 is inserted into a cover opening of the first cover 21 in the circumferential direction, and a cover opening edge of the second cover 22 is overlapped with a cover opening edge of the first cover 21 in the circumferential direction to form a welded seam. The opening edge on the outer side of the upper end of the opening of the first cover 21 and the opening edge on the outer side of the upper end of the opening of the second cover 22 are respectively recessed and spliced into a first mounting opening 23 for mounting the vehicle body accessory, the top opening edge of the opening of the second cover 22 is turned outwards to form a first flanging 221, the top opening edge of the opening of the first cover 21 extends towards the second cover 22 to form a first extending edge 211, the first extending edge 211 is vertically overlapped with the first flanging 221 to form a welding joint, and a first connecting hole 24 penetrating through the first mounting opening 23 and used for connecting with the vehicle body accessory is formed on the top opening edge of the opening of the first cover 21.

Each tower 2 in the utility model comprises a first cover body 21 and a second cover body 22, the structure is simple, the cover mouth of the second cover body 22 is inserted into the cover mouth of the first cover body 21 along the circumferential direction, and the cover mouth edge of the second cover body 22 and the cover mouth edge of the first cover body 21 are overlapped along the circumferential direction to form a welding seam, so that the structural strength and durability of the tower 2 are ensured. And, by forming the first mounting opening 23 and the first connecting hole 24, the connection assembly of the sub-frame and the vehicle body accessory is facilitated. The first connecting hole 24 is an open hole, so that when a vehicle collides, a bolt connected to the first connecting hole 24 can be separated from the tower 2 through an opening on the first connecting hole 24, the sub-frame is beneficial to separating from the vehicle body, and the sub-frame is sunk under the action of gravity of the sub-frame after separating from the vehicle body, so that the sub-frame cannot move backwards and be embedded into the passenger cabin, and the life safety of drivers and passengers is ensured. The design of the first extending edge 211 facilitates the provision of the first connecting hole 24, and the first extending edge 211 and the first flange 221 are overlapped up and down to form a welded seam, so that the structural strength and durability of the tower 2 can be further ensured.

Specifically, the subframe in the present utility model is a front subframe, and the frame body 1 of the subframe has a hollow block structure extending in the left-right direction, and through holes 11 extending in the left-right direction and penetrating in the up-down direction are formed in the left-right sides of the rear portion of the frame body 1. In addition, preferably, the edges of the first extending edges 211 on each first cover 21 are respectively located outside the edges of the corresponding first flanges 221, so that the first extending edges 211 and the first flanges 221 can be welded and fixed more firmly, and the strength of the internal structure of each tower 2 is further improved.

Further, the left and right sides of the front end of the upper frame body 1 are respectively provided with a first mounting notch 12 along the front-rear direction, the left and right sides of the rear end of the frame body 1 are respectively provided with a second mounting notch 13 along the front-rear direction, the inner side of the lower end of each tower 2 is respectively embedded in the rear end corresponding to the first mounting notch 12 and welded and fixed with the opening edge of the position along the length direction, the front end of each first mounting notch 12 is used for the front point sleeve insertion of a control arm, and each second mounting notch 13 is used for the rear point sleeve insertion of the control arm. So that each tower 2 can be firmly mounted on the frame body 1, and the control arm in the embodiment is specifically a front lower control arm and is used for transmitting the load of the transverse direction (i.e. left-right direction) and the longitudinal direction (i.e. braking and starting direction) of the vehicle to the auxiliary frame, and the assembly of the control arm on the frame body 1 is conveniently realized through the design.

Specifically, the first cover 21 of each tower 2 is located at the front side of the corresponding second cover 22, the lower end of the first cover 21 of each tower 2 is provided with a first mounting point 41 for fixing the rear end of the front point sleeve of the control arm, and the front side edge of each first mounting notch 12 is provided with a second mounting point 42 for fixing the front end of the front point sleeve of the control arm along the left-right direction. The upper edge of each second mounting notch 13 is provided with a third mounting point 43 for fixing the upper end of the rear point sleeve of the control arm, and the lower edge is provided with a fourth mounting point 44 for fixing the lower end of the rear point sleeve of the control arm, so that the control arm can be stably mounted on the auxiliary frame.

Further, the upper end of the second cover 22 of each of the towers 2 is provided with a fifth mounting point 45 for fixing with a vehicle body accessory, thereby facilitating the stable connection of each of the towers 2 with the vehicle body accessory. In addition, the left and right end parts of the front end surface of the frame body 1 are respectively fixed with mounting seats 3 for mounting extension beams, so that the extension beams are conveniently mounted on the auxiliary frame, wherein the extension beams are used for absorbing collision energy in the collision process, and the effect of protecting passengers is achieved. The center of the front end of the frame body 1 is provided with a first installation position 51 for installing an engine suspension pull rod, so that the installation of the engine suspension pull rod on a subframe is facilitated, wherein the engine suspension pull rod is used for transmitting an engine load to the subframe and has a vibration reduction effect.

Still further, the frame body 1 is provided with sixth mounting points 46 for mounting a steering gear on the left and right sides and the rear side of the first mounting location 51, respectively, on the top surface thereof, thereby facilitating the mounting of the steering gear on the sub-frame, wherein the steering gear is used for providing steering force to the vehicle. In addition, the seventh mounting points 47 for mounting the stabilizer bar are respectively disposed on the top surface of the frame body 1 at the inner front side of each third mounting point 43, so that the stabilizer bars are conveniently mounted on the left and right sides of the frame body 1 respectively, wherein the stabilizer bars are used for coordinating the vertical movement of the left and right wheels, and the operability and comfort of the vehicle are improved.

Claims (9)

1. An auxiliary frame with a tower structure comprises two towers (2) and a frame body (1), wherein the two towers (2) are respectively arranged at the left side and the right side of the front end of the frame body (1),

each tower (2) comprises a first cover body (21) and a second cover body (22) which are arranged oppositely in the front-back direction and extend up and down respectively, wherein the cover mouth of the second cover body (22) is inserted into the cover mouth of the first cover body (21) along the circumferential direction, the cover mouth edge of the second cover body (22) is overlapped with the cover mouth edge of the first cover body (21) along the circumferential direction to form a welding seam,

the opening edge outside the upper end of the opening of the first cover body (21) and the opening edge outside the upper end of the opening of the second cover body (22) are respectively sunken and spliced into a first mounting opening (23) for mounting the vehicle body accessory, the top opening edge of the opening of the second cover body (22) is turned outwards to form a first flanging (221), the top opening edge of the opening of the first cover body (21) extends towards the second cover body (22) to form a first extending edge (211), the first extending edge (211) is overlapped with the first flanging (221) up and down to form a welding seam, and a first connecting hole (24) penetrating through the first mounting opening (23) and used for connecting with the vehicle body accessory is formed in the top opening edge of the opening of the first cover body (21).

2. The auxiliary frame with the tower structure according to claim 1, wherein the frame body (1) is of a hollow structure, the left side and the right side of the front end of the frame body (1) are respectively provided with a first mounting notch (12) along the front-back direction, the left side and the right side of the rear end of the frame body (1) are respectively provided with a second mounting notch (13) along the front-back direction, the inner side of the lower end of each tower (2) is respectively embedded in the rear end corresponding to the first mounting notch (12) and welded and fixed with the opening edge of the corresponding tower along the length direction, the front end of each first mounting notch (12) is used for the front point sleeve insertion of a control arm, and each second mounting notch (13) is used for the rear point sleeve insertion of the control arm.

3. Subframe with a tower structure according to claim 2, characterized in that the first cover (21) of each tower (2) is located at the front side of the corresponding second cover (22), the lower end of the first cover (21) of each tower (2) is provided with a first mounting point (41) for fixing the rear end of the front point sleeve of the control arm, the front side opening of each first mounting notch (12) is provided with a second mounting point (42) for fixing the front end of the front point sleeve of the control arm along the upper left-right direction,

and the upper opening edge of each second mounting notch (13) is respectively provided with a third mounting point (43) for fixing the upper end of the rear point sleeve of the control arm, and the lower opening edge is respectively provided with a fourth mounting point (44) for fixing the lower end of the rear point sleeve of the control arm.

4. A subframe with a turret structure according to claim 3, characterized in that the upper end of the second cover (22) of each turret (2) is provided with a fifth mounting point (45) for securing with a vehicle body accessory, respectively.

5. Subframe with a turret structure according to any one of claims 1 to 4, characterized in that the left and right end portions of the front end face of the frame body (1) are respectively fixed with mounting seats (3) for mounting extension beams.

6. Sub-frame with turret structure according to any of claims 1-4, characterized in that the centre of the front end of the frame body (1) is provided with a first mounting location (51) for mounting the engine suspension tie-rods.

7. Sub-frame with turret structure according to claim 6, characterized in that the frame body (1) is provided with sixth mounting points (46) for mounting the steering gear on the left and right sides and the rear side of the first mounting location (51), respectively.

8. A subframe with a turret structure according to claim 3, characterized in that the top surface of the frame body (1) is provided with seventh mounting points (47) for mounting stabilizer bars, respectively, on the inner front side of each third mounting point (43).

9. A tower construction subframe according to any one of claims 1 to 4, wherein the edges of the first extension edges (211) on each of said first shells (21) are located outside the edges of the corresponding first flanges (221).