CN222157607U

CN222157607U - Cabin and commercial car before car

Info

Publication number: CN222157607U
Application number: CN202323171003.5U
Authority: CN
Inventors: 刘勇; 张桃; 钟银辉; 王强; 蒋世林; 李林梅
Original assignee: Chongqing Ruichi Auto Industrial Co ltd
Current assignee: Chongqing Ruichi Auto Industrial Co ltd
Priority date: 2023-11-23
Filing date: 2023-11-23
Publication date: 2024-12-13
Anticipated expiration: 2033-11-23

Abstract

The utility model relates to the field of automobile manufacturing, and specifically to a front engine room of an automobile and a commercial automobile, wherein the front engine room of the automobile comprises a longitudinal beam and a subframe connected below the longitudinal beam; the longitudinal beam comprises a front section of the longitudinal beam and a middle section of the longitudinal beam, and a plurality of crush ribs are arranged at intervals on the outer side of the front section of the longitudinal beam; the subframe comprises a closed frame formed by a front cross beam of the subframe, a rear cross beam of the subframe and a longitudinal beam of the subframe, and the commercial automobile of the utility model comprises the above-mentioned front engine room of the automobile. The utility model is particularly suitable for commercial vehicles with a shorter front engine room. When a collision occurs in a car, the longitudinal beam structure with a plurality of crush ribs can effectively absorb the collision energy. Under this condition, the subframe with enhanced bending, torsional stiffness and durability can keep the longitudinal beam stably crushed, thereby maintaining the structural integrity of the cab and reducing the damage to the occupants.

Description

Cabin and commercial car before car

Technical Field

The utility model relates to the field of automobile manufacturing, in particular to an automobile front cabin and a commercial automobile.

Background

With the development of the automobile industry, automobile safety is increasingly receiving attention. The automobile collision safety is an important component of the automobile safety, and the improvement of the automobile collision safety is an important research point in the automobile field. In the automobile collision process, the injury suffered by the passengers mainly comes from the impact and extrusion generated during the collision, in order to reduce the injury suffered by the passengers, effective measures are needed to be taken to absorb collision energy, the traditional automobile energy absorbing structure mostly adopts an energy absorbing box or bellows type longitudinal beam structure, for example, patent CN217515116U discloses a front longitudinal beam multipath force transmission structure, the collision force is transmitted through a longitudinal tubular beam under the connection of the bottom of the energy absorbing box and the bottom of a front cabin, but the front cabin space of the commercial automobile in the market is shorter, the energy absorbing box is arranged at the front end of the longitudinal beam in a non-space way, cabin cross beams and stand columns are also required to be arranged on the longitudinal beam, the bellows type longitudinal beam is inconvenient to design, the longitudinal beam cannot effectively absorb collision energy when the automobile is in front collision, the auxiliary frame is bent, the torsional rigidity is low, the durability is poor, the structural integrity of the cab cannot be kept, and the injury risk of the passengers is increased.

Disclosure of utility model

The utility model provides an automobile front cabin and a commercial automobile, which are used for ensuring that a subframe which enhances bending, torsional rigidity and durability can keep the stable collapse of a longitudinal beam under the condition that the longitudinal beam has a certain energy absorption effect when the automobile collides.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

The utility model provides an automobile front cabin, which comprises a longitudinal beam and an auxiliary frame connected below the longitudinal beam, wherein the longitudinal beam comprises a longitudinal beam front section and a longitudinal beam middle section, multi-section crumple ribs are arranged on the outer side of the longitudinal beam front section at intervals, the auxiliary frame is connected below the longitudinal beam front section, and the auxiliary frame comprises a closed frame formed by an auxiliary frame front cross beam, an auxiliary frame rear cross beam and an auxiliary frame longitudinal beam.

The utility model is particularly suitable for commercial vehicles with shorter front cabins, when the vehicles collide, the longitudinal beam structure with the multi-section type crumple ribs can effectively absorb collision energy, under the condition, the auxiliary frame with enhanced bending, torsional rigidity and durability can keep the longitudinal beam stably crumple, and further, the structural integrity of the cab can be kept, so that the injury to passengers can be reduced.

Preferably, the length of the foremost end of the longitudinal beam, which extends out of the front cross beam of the auxiliary frame in a longitudinal direction, is not less than 20% of the length of the longitudinal beam of the auxiliary frame, and at least one section of the crumple ribs is arranged on the extending section. By locating the subframe at a position slightly behind the stringers, the subframe is prevented from being impacted for the first time, thereby delaying the diverter impact time.

Preferably, a claw plate is connected to the vertical upper part of the junction of the front cross beam of the auxiliary frame and the longitudinal beam of the auxiliary frame, a threaded pipe is arranged on the claw plate, and the auxiliary frame is connected with the front section of the longitudinal beam through the threaded pipe. Through setting up sheep scute, when the car bumps, longeron and sub vehicle frame have a plurality of stress points, can guarantee the stability of collapsing.

The auxiliary frame is characterized in that an auxiliary frame rear mounting plate is arranged on the longitudinal beam, a connecting piece is arranged at the joint of the auxiliary frame rear cross beam and the auxiliary frame longitudinal beam, flange face bolts are arranged at two ends of the auxiliary frame rear cross beam, and the auxiliary frame is connected with the auxiliary frame rear mounting plate through the flange face bolts. The auxiliary frame longitudinal beam is not a straight pipe, is slightly inclined in the middle and is relatively parallel to the longitudinal beam, and can better transmit force to the rear mounting plate of the auxiliary frame.

Preferably, the auxiliary frame longitudinal beam is provided with a swing arm supporting seat, and the connecting piece is provided with a swing arm mounting hole and a bolt matched with the swing arm mounting hole. By installing the swing arm on the auxiliary frame, the space of the auxiliary frame is fully utilized, and the cabin layout is more reasonable.

Preferably, a diverter mounting bracket is arranged above the connecting piece, a pit is arranged on the upper surface of the connecting piece, and a protrusion is arranged on the lower surface of the connecting piece. The connecting piece makes the upper surface unsmooth through setting up the pit, and the protruding corresponding bulge position of upper surface and lower surface is equivalent to the strengthening rib, can effectively promote the intensity and the rigidity of connecting piece.

Preferably, the auxiliary frame further comprises an auxiliary frame middle cross beam connected with the two connecting pieces, and the auxiliary frame middle cross beam is provided with a rear suspension mounting bracket. The arrangement of the cross beam in the auxiliary frame enhances the stability of the closed frame, thereby improving the bending, torsional rigidity and durability of the auxiliary frame.

Preferably, the auxiliary frame longitudinal beam, the auxiliary frame front cross beam, the auxiliary frame rear cross beam and the auxiliary frame middle cross beam are hollow. The arrangement of the hollow structure is beneficial to weight reduction of the auxiliary frame.

Preferably, through holes are arranged on the surfaces of the front cross beam and the rear cross beam of the auxiliary frame, and the through holes are communicated with the inside in a hollow manner. The arrangement of the through holes is beneficial to weight reduction of the auxiliary frame, and the strength of the front cross beam of the auxiliary frame and the rear cross beam of the auxiliary frame is enhanced.

The utility model also provides a commercial vehicle comprising the front cabin of the vehicle according to any one of the above.

The auxiliary frame of the automobile front cabin has the beneficial effects that the auxiliary frame of the automobile front cabin is provided with the plurality of closed frames, and forms a stable frame structure with the longitudinal beams, so that the auxiliary frame with improved bending, torsional rigidity and durability is matched with the crumple ribs, and the auxiliary frame keeps the longitudinal beams to crumple stably under the condition that the longitudinal beams absorb collision energy effectively, so that the structural integrity of the cabin is ensured, and the injury to passengers is reduced. Each component of the auxiliary frame is provided with a hollow structure and a lightening hole, so that the total weight of the auxiliary frame is effectively reduced on the basis of ensuring the strength. The mounting bracket of other components is arranged on the auxiliary frame of the commercial automobile, so that the space of the front cabin of the automobile is fully utilized and saved, and the space is reserved for the storage cabin.

Drawings

FIG. 1 is a side view of an automobile front cabin of the present utility model.

Fig. 2 is a side view of the front cabin of the automobile of the present utility model.

Fig. 3 is a partial enlarged view of fig. 2 at a.

Fig. 4 is an isometric view of a front nacelle subframe of the utility model.

Fig. 5 is a partial enlarged view at B in fig. 4.

Fig. 6 is a bottom view of the subframe of the present utility model.

Fig. 7 is a bottom view of the subframe of the present utility model.

In the figure, a longitudinal beam structure 10, a longitudinal beam front section 11, a longitudinal beam middle section 12, a crush rib 13, a subframe rear mounting plate 14, a subframe 20, a subframe front beam 21, a diagonal block 211, a subframe rear beam 22, flange face bolts 221, a subframe middle beam 23, a rear suspension mounting bracket 231, a subframe longitudinal beam 24, a swing arm support seat 241, a claw plate 25, a claw plate through hole 251, a threaded pipe 252, a connecting piece 26, a pit 261, a swing arm mounting hole 262, a protrusion 263, a steering gear mounting bracket 264 and a swing arm 30 are marked.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements 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 utility model, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.

The utility model provides an automobile front cabin, which is shown in fig. 1 and 2, and comprises a longitudinal beam 10 and a subframe 20 connected below the longitudinal beam, wherein the longitudinal beam 10 comprises a longitudinal beam front section 11 and a longitudinal beam rear section, four longitudinal crush ribs 13 are arranged on the outer side of the longitudinal beam front section 11 at intervals, particularly, an inward concave crush rib 13 is arranged between the longitudinal beam 10 and the lap joint position of an automobile upright post and a cabin cross beam, the subframe 20 is connected below the longitudinal beam front section 11, the subframe 20 comprises a closed frame formed by a subframe front cross beam 21, a subframe rear cross beam 22 and a subframe longitudinal beam 24, the subframe longitudinal beam 24 and the longitudinal beam 10 are arranged in parallel in the length direction, the length of the front end of the longitudinal beam 10, which longitudinally extends out of the subframe front cross beam 21, is not less than 20% of the length of the subframe longitudinal beam 24, and at least one section of crush rib 13 is arranged on the overhanging section.

As shown in fig. 4, 5, 6 and 7, the sub frame rail 24 is provided with a swing arm support base 241, and the link 26 is provided with a swing arm mounting hole 262 and a bolt engaged with the swing arm mounting hole 262. By installing the swing arm 30 on the auxiliary frame 20, the space of the auxiliary frame 20 is fully utilized, and the layout of the front cabin is more reasonable.

The vertical top of sub vehicle frame front cross beam 21 and sub vehicle frame longeron 24 junction is connected with ram's horn 25, and ram's horn 25 intermediate position is equipped with the lightening hole for subtracting heavy and strengthen the rigidity. The sheep angle plate 25 top is equipped with screwed pipe 252, and sub vehicle frame 20 one side is connected with the longeron through screwed pipe 252, through setting up sheep angle plate 25, and when the car bumps, longeron and sub vehicle frame 20 have a plurality of stress points, can guarantee the stability of collapsing, and simultaneously, sub vehicle frame longeron 24 is not the straight tube, slightly inclines in the middle part and is parallel relatively in the longeron, can be better with the transmission of power to sub vehicle frame rear mounting panel 14.

As shown in fig. 3, a connecting piece 26 is arranged at the joint of the rear cross beam 22 of the auxiliary frame and the longitudinal beam 24 of the auxiliary frame, a flange surface bolt 221 is arranged on the connecting piece 26, a steering gear mounting bracket 264 is arranged above the connecting piece 26, as shown in fig. 5, a pit 261 is arranged on the upper surface of the connecting piece 26, as shown in fig. 7, and a protrusion 263 is arranged on the lower surface of the connecting piece 26. The connecting piece 26 is provided with the concave pit 261 to enable the upper surface to be uneven, the convex 263 of the upper surface relative to the convex part and the lower surface is equivalent to a reinforcing rib, and the strength and the rigidity of the connecting piece 26 can be effectively improved.

As shown in fig. 1-2, the side member is provided with a sub-frame rear mounting plate 14, and the other side of the sub-frame 20 is connected to the sub-frame rear mounting plate 14 by a flange face bolt 221.

As shown in fig. 6, the subframe 20 further includes a subframe middle beam 23 connecting the two connection members 26, the subframe middle beam 23 is symmetrical with both ends slightly bent, and a rear suspension mounting bracket 231 is mounted above the end of the subframe middle beam 23. The provision of the sub-frame center rail 23 enhances the stability of the closed frame, thereby enhancing the bending and torsional stiffness of the sub-frame 20. In this embodiment, the subframe rail 24, the subframe front beam 21, the subframe rear beam 22 and the subframe middle beam 23 are hollow tubes, and through holes are provided on the surfaces of the subframe front beam 21 and the subframe rear beam 22 to further reduce weight and strengthen pipe strength.

The automobile front cabin provided by the utility model is particularly suitable for automobiles with shorter front cabins, and when an automobile collides, the longitudinal beam structure with the multi-section type crumple ribs can effectively absorb collision energy, and under the condition, the auxiliary frame with enhanced bending, torsional rigidity and durability can keep the longitudinal beam stably crumple, so that the structural integrity of a cab is kept, and the injury to passengers is reduced.

The utility model also provides a commercial automobile comprising the automobile front cabin. The mounting bracket of other components is arranged on the auxiliary frame of the commercial automobile, so that the space of the front cabin of the automobile is fully utilized and saved, and the space is reserved for the storage cabin of the automobile.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The automobile front cabin comprises a longitudinal beam (10) and an auxiliary frame (20) connected below the longitudinal beam, wherein the longitudinal beam (10) comprises a longitudinal beam front section (11) and a longitudinal beam middle section (12), and is characterized in that multi-section crumple ribs (13) are arranged on the outer side of the longitudinal beam front section (11) at intervals, the auxiliary frame (20) is connected below the longitudinal beam front section (11), and the auxiliary frame (20) comprises a closed frame formed by an auxiliary frame front cross beam (21), two auxiliary frame longitudinal beams (24) and an auxiliary frame rear cross beam (22).

2. A front cabin of a motor vehicle according to claim 1, characterized in that the foremost end of the longitudinal beam (10) is suspended longitudinally beyond the front cross member (21) of the subframe by not less than 20% of the length of the longitudinal beam (24) of the subframe and that at least one of the crush ribs (13) is arranged on the suspended section.

3. An automotive front cabin according to claim 1, characterized in that a claw plate (25) is connected to the vertical upper part of the junction of the front cross beam (21) of the auxiliary frame and the longitudinal beam (24) of the auxiliary frame, a threaded pipe (252) is arranged on the claw plate (25), and the auxiliary frame (20) is connected with the front section (11) of the longitudinal beam through the threaded pipe (252).

4. The automobile front cabin according to claim 1, wherein the front section (11) of the longitudinal beam is provided with a rear mounting plate (14) of the auxiliary frame, a connecting piece (26) is arranged at the joint of the rear cross beam (22) of the auxiliary frame and the longitudinal beam (24) of the auxiliary frame, flange face bolts (221) are arranged at two ends of the rear cross beam (22) of the auxiliary frame, and the auxiliary frame (20) is connected with the rear mounting plate (14) of the auxiliary frame through the flange face bolts (221).

5. An automotive front cabin according to claim 4, characterized in that the subframe rail (24) is provided with a swing arm support (241), and the connecting piece (26) is provided with a swing arm mounting hole (262) and a bolt matched with the swing arm mounting hole.

6. An automotive front cabin according to claim 4, characterized in that a diverter mounting bracket (264) is mounted above the connector (26), the upper surface of the connector (26) is provided with a recess (261), and the lower surface of the connector is provided with a protrusion (263).

7. An automotive front cabin according to claim 1, characterized in that the subframe (20) further comprises a subframe middle rail (23) connecting two connectors (26), the subframe middle rail (23) having rear suspension mounting brackets (231) mounted thereon.

8. An automotive front cabin according to any one of claims 1-7, characterized in that the subframe rail (24), subframe front cross member (21), subframe rear cross member (22) and subframe center cross member (23) are hollow inside.

9. An automotive front cabin according to claim 8, characterized in that the surfaces of the front subframe cross member (21) and the rear subframe cross member (22) are provided with through holes, which are hollow through the inside.

10. A commercial vehicle comprising an automotive front cabin according to any one of claims 1-9.