Vehicle and front suspension connection device for the body of the vehicle

Abstract

This application relates to a vehicle and its front suspension connection device. The connection device connects the frame assembly, the front lower guard member, and the cab. The connection device includes: a front suspension member connected to the cab so that the cab is mounted on the frame assembly; and an articulated member connected to the front suspension member and the frame assembly, allowing the cab to be rotatably connected to the frame assembly. The front lower guard member is connected to the articulated member. The articulated member of this application is rotatably connected to the suspension member and to the front lower guard member, ensuring both the cab's tilting function and the stable connection of the frame assembly, the front lower guard member, and the suspension member, thus improving the overall vehicle driving safety.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to vehicles and their front suspension connection devices. Background Technology

[0002] As a means of transportation, the most important performance characteristic of a vehicle is its safety. In a vehicle collision, the energy of the impact is enormous; without the protection of a bumper (anti-collision beam), the vehicle's interior and passengers are easily subjected to severe injury. Anti-collision beams can rapidly distribute the impact force across the entire vehicle body, thereby reducing the impact force on the affected areas. In related technologies, the front lower protection device is mounted on the longitudinal beams of the chassis via left and right connecting brackets. To ensure sufficient stopping power, methods such as increasing the beam wall thickness, increasing the beam cross-sectional size, or casting beam connecting plates are commonly used. However, this connection method is simplistic, and when the installation of the front suspension components is involved, the connection strength between the front suspension components or the front lower protection device and the chassis cannot be simultaneously guaranteed. Summary of the Invention

[0003] Therefore, it is necessary to provide a vehicle and its front suspension connection device with high connection strength and high connection efficiency to address the above problems.

[0004] A vehicle body front suspension connection device, the connection device connecting the vehicle frame assembly, the front lower guard member and the cab, the connection device comprising:

[0005] A front suspension member, connected to the cab to mount the cab onto the frame assembly; and

[0006] An articulated member is connected to the front suspension member and the frame assembly, such that the cab is rotatably connected to the frame assembly, and the front lower guard member is connected to the articulated member.

[0007] In one embodiment, the hinge member includes a first mounting portion disposed in a first direction, the first mounting portion having at least four first mounting holes, the front lower guard member being connected to the hinge member through the mounting holes, the first direction being the extension direction of the crossbeam of the frame assembly.

[0008] In one embodiment, the frame assembly includes a alignment portion disposed parallel to the first mounting portion, the alignment portion having a first alignment hole that matches at least a portion of the first mounting hole, and the connecting device further includes a first fastener that passes sequentially through the front lower guard member, the first mounting hole and the first alignment hole to connect the front lower guard member, the hinge member and the frame assembly to each other.

[0009] In one embodiment, the connecting device further includes a support member, which is sleeved on one end of the front lower protective member. The support member has a support hole that matches the first mounting hole.

[0010] In one embodiment, the hinge member includes a first mounting portion and a second mounting portion spaced apart from each other. The first mounting portion is used to connect to the front lower protective member and is disposed in a first direction. The second mounting portion is oriented differently from the first mounting portion and is rotatably connected to the front suspension member.

[0011] In one embodiment, the second mounting portion includes a semi-circular rotating groove, the hinge member further includes a semi-circular fixing member, the front suspension member includes a pivot, and the fixing member is connected to the second mounting portion such that the fixing member and the rotating groove are arranged around the pivot.

[0012] In one embodiment, the connecting device further includes a front lower auxiliary protective member connected to the mounting groove of the frame assembly. The front lower auxiliary protective member is arranged parallel to and below the crossbeam of the frame assembly, and the front lower auxiliary protective member is spaced apart from the hinge member.

[0013] In one embodiment, the connecting device further includes a transition member, the hinge member including an extension extending from the frame assembly, the transition member connecting the side of the extension away from the front lower guard member and the frame assembly.

[0014] In one embodiment, the hinge member includes a first mounting portion disposed in a first direction, the first mounting portion being used to connect the front lower guard member and the longitudinal beam of the frame assembly, wherein at least a portion of the connected front lower guard member is misaligned with the longitudinal beam.

[0015] A vehicle includes the aforementioned front suspension connection device for the vehicle body.

[0016] The aforementioned connecting device features a hinged component that is rotatably connected to the suspension component and to the front lower protective component. This not only ensures the cab can be tilted but also stably connects the frame assembly, the front lower protective component, and the suspension component together, thereby improving the overall vehicle driving safety. Attached Figure Description

[0017] Figure 1 This is a partial structural schematic diagram of a connection device according to an embodiment of this application.

[0018] Figure 2 This is a partial structural schematic diagram of a connecting device according to an embodiment of this application.

[0019] Figure 3 This is a schematic diagram of the structural installation of the front suspension component according to an embodiment of this application.

[0020] Figure 4 This is a partial structural installation diagram of a connection device according to an embodiment of this application. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0022] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0026] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0027] Research has revealed that the front suspension connection structure of commercial vehicles is relatively simple in related technologies, and the connection method of separately installed protective devices is also relatively simple. When the front suspension component and protective component are installed simultaneously, the connection strength between the front suspension component or the lower front protective device and the frame cannot be guaranteed at the same time. Furthermore, since the introduction of the JT / T 1178.1 standard, the connection strength and rigidity of the front suspension need to be strengthened, and the connection between the front suspension and the frame assembly also needs to be reinforced. Currently, there is no standard-compliant front suspension connection solution for the 220mm cross-section frame of the FAW commercial vehicle platform. Therefore, this application proposes a vehicle front suspension connection device to solve the above problems.

[0028] See Figure 1 , Figure 2 , Figure 1 , Figure 2 A schematic diagram of the structure of a vehicle body front suspension connection device according to an embodiment of the present application is shown. The connection device 1 provided in an embodiment of the present application is used for vehicles, especially for heavy vehicles with a cab that can be tilted. The connection device 1 is connected between the frame assembly 2, the front lower protective member 3 and the cab (not shown). The connection device 1 includes a front suspension member 100 and a hinge member 200.

[0029] A front suspension member 100 is connected to the cab so that the cab is mounted on the frame assembly 2. A hinge member 200 is connected to the front suspension member 100 and the frame assembly 2, so that the cab is rotatably connected to the frame assembly 2, and a front lower guard member 3 is connected to the hinge member 200.

[0030] The aforementioned connecting device 1, with its hinged component 200 rotatably connected to the suspension component and connected to the front lower protective component 3, not only ensures the cab can be tilted but also stably connects the frame assembly 2, the front lower protective component 3, and the suspension component together, improving the overall vehicle driving safety. At the same time, it provides a solution for the lack of a standard front suspension for the 220mm cross-section frame of the FAW commercial vehicle platform. It is widely adaptable to different types of front suspension components 100, saving development costs and achieving the requirements of unified serialization of vehicle parts.

[0031] Understandably, there are two front suspension components 100 and two articulation components 200, which are symmetrically arranged at both ends of the frame assembly 2 and the cab. The following will introduce a single structure on one side.

[0032] In one embodiment, the hinge member 200 includes a first mounting portion 210 and a second mounting portion 220 spaced apart from each other. The first mounting portion 210 is used to connect the front lower protective member 3 and is oriented towards a first direction X. The first mounting portion 210 has at least four first mounting holes 211 through which the front lower protective member 3 is connected to the hinge member 200. The first direction X is the extension direction of the crossbeam of the frame assembly 2. The second mounting portion 220 is oriented differently from the first mounting portion 210 and is rotatably connected to the front suspension member 100.

[0033] Specifically, the first mounting portion 210 has two opposing mounting surfaces, one front and one back, perpendicular to the first direction X. One of the mounting surfaces connects to the front lower protective member 3, and the other connects to the frame assembly 2. The frame assembly 2 includes intersecting crossbeams 21, longitudinal beams 22, and vertical beams 23. The crossbeams 21 and 22 intersect at a front end junction 24, and the longitudinal beams 22 and 23 intersect at a side junction. The crossbeams 21 are arranged along the first direction X, the longitudinal beams 22 are arranged along a second direction Y perpendicular to the first direction X, and the vertical beams 23 are arranged along a third direction Z perpendicular to both the first direction X and the second direction Y. One of the two mounting surfaces connects to the front lower protective member 3, and the other connects to at least a portion of the longitudinal beams 22, with at least a portion of the first mounting portion 210 located at the front end junction 24.

[0034] Furthermore, at least two of the at least four first mounting holes 211 are matched with the front end junction position 24, and at least two of the at least four first mounting holes 211 are located below the front end junction position 24 (i.e., at a lower position in the third direction Z).

[0035] In one embodiment, the frame assembly 2 includes a alignment portion disposed parallel to the first mounting portion 210. The alignment portion is provided with a first alignment hole 25, which is at least partially matched with the first mounting hole 211. The connecting device 1 further includes a fastening assembly 400, which includes a first fastener 410. The first fastener 410 passes sequentially through the front lower protective member 3, the first mounting hole 211, and the first alignment hole 25 to connect the front lower protective member 3, the hinge member 200, and the frame assembly 2 to each other.

[0036] Specifically, the alignment part is located at the front end junction position 24, and at least two first alignment holes 25 are provided, which match the positions of at least two first mounting holes 211.

[0037] In one embodiment, the connecting device 1 further includes a support member 300, which is sleeved on one end of the front lower protective member 3. The support member 300 is provided with a support hole 320, which is matched with the first mounting hole 211.

[0038] Specifically, the support member 300 includes a sleeve portion 310 and a support portion 330. The sleeve portion 310 is a hollow structure and is projected onto the end of the front lower protective member 3. The support portion 330 is arranged parallel to the mounting surface and has at least four support holes 320, each corresponding to a portion of the first mounting hole 211. The fastening assembly 400 includes a second fastener 420, which passes sequentially through the support hole 320, the first mounting hole 211, and the first alignment hole 25 to connect the front lower protective member 3, the hinge member 200, and the longitudinal beam 22. A reinforcing rib is also provided between the sleeve portion 310 and the support portion 330, and the reinforcing rib is positioned to avoid the support hole 320.

[0039] In one embodiment, the second mounting portion 220 includes a semi-circular rotating groove 221, the hinge member 200 further includes a semi-circular fixing member 240, the front suspension member 100 includes a rotating shaft 101, and the fixing member 240 is connected to the second mounting portion 220 such that the fixing member 240 and the rotating groove 221 are arranged around the rotating shaft 101.

[0040] Specifically, the central axis of the semi-circular shape is parallel to the first direction X, meaning the pivot 101 of the front suspension member 100 is arranged in a direction parallel to the first direction X, allowing the front suspension member 100 to rotate around the first direction X. The second mounting portion 220 also includes second mounting holes 222 located at both ends of the rotating groove 221. The fixing member 240 includes two hinge holes 241 that match the second mounting holes 222. The line connecting the two second mounting holes 222 is inclined relative to the first direction X, meaning the semi-circular rotating groove 221 of the second mounting portion 220 is inclined to facilitate installation. The fastening assembly 400 includes a third fastener 430, which passes through the hinge holes 241 and the second mounting holes 222 to connect the fixing member 240 and the second mounting portion 220, and to confine a portion of the front suspension member 100 within the rotating groove 221.

[0041] Furthermore, the articulation member 200 also includes a platform 230 protruding from the mounting surface toward the frame assembly 2. When the articulation member 200 is installed with the frame assembly 2, the platform 230 abuts against the upper side of the crossbeam 21 or longitudinal beam 22 in the third direction Z. The platform 230 is located between the first mounting portion 210 and the second mounting portion 220. In the first direction X, the first mounting portion 210 is located between the second mounting portion 220 and the platform 230. The second mounting portion 220 and the first mounting portion 210 are misaligned, and an inclined reinforcing rib is provided between the second mounting portion 220 and the first mounting portion 210. The reinforcing rib is provided to avoid the first mounting hole 211.

[0042] After the front suspension component 100 and the hinge component 200 are connected, the front suspension component 100 is located above the frame assembly 2. For example... Figure 3 As shown, the front suspension component 100 includes a first connecting portion 110 arranged along a second direction Y, a second connecting portion 120 arranged on the first connecting portion 110 along a third direction Z, and a third connecting portion 130 arranged along a third direction Z. The first connecting portion 110 and the second connecting portion 120 are used to connect to the two sides of the front longitudinal beam 5 of the cab, and the third connecting portion 130 is used to connect to the front bulkhead 4 of the cab. The first connecting portion 110, the second connecting portion 120, and the third connecting portion 130 are all provided with multiple spaced connecting holes.

[0043] In one embodiment, such as Figure 4 As shown, the connecting device 1 further includes a front lower auxiliary protective member 600, which is connected to the mounting groove of the frame assembly 2. The front lower auxiliary protective member 600 is arranged parallel to and below the crossbeam 21 of the frame assembly 2, and is spaced apart from the hinge member 200. Specifically, in the third direction Z, the front lower auxiliary protective member 600 is misaligned with the front lower protective member 3.

[0044] Furthermore, the cavity of the front lower auxiliary protective component 600 must penetrate the energy-absorbing box structure by more than 20mm in the first direction X. The thickness of the front lower auxiliary protective component 600 in the second direction Y is greater than 50mm, and its height in the third direction Z is between 70mm and 120mm. Its shape is generally designed as an arc or a straight line. The hinge component 200 or the front lower auxiliary protective component 600 generally uses steel plates with a thickness of 1.8mm to 2.0mm.

[0045] In one embodiment, such as Figure 4 As shown, the connecting device 1 further includes a transition member 500, and the hinge member 200 includes an extension that extends out of the frame assembly 2. The transition member 500 is connected between the side of the extension away from the front lower protective member 3 and the frame assembly 2.

[0046] Specifically, the transition member 500 is angle steel shaped and located between the vertical beam 23 and the longitudinal beam 22 (or the transverse beam 21). One side of the transition member 500 that abuts with the hinge member 200 is triangular or trapezoidal, facing the first direction X and flush with the surface of the vertical beam 23. The transition member 500 also includes a side that abuts against the vertical beam 23 and / or a side that abuts against the longitudinal beam 22 (or the transverse beam 21). After the connecting device 1 is connected, the transition member 500 is located between the transverse beam 21 and the lower auxiliary protective member to improve the support strength at the connection point.

[0047] Furthermore, the protrusion is part of the first mounting portion 210, located below the front end junction position 24, and at least two of the at least four first mounting holes 211 are located on the protrusion. The transition member 500 is provided with a second alignment hole that matches the position of the first mounting hole 211 located on the protrusion. The first fastener 410 passes sequentially through the support hole 320, the first mounting hole 211, and the second alignment hole to connect the support member 300, the corner structure, and the transition member 500 together.

[0048] In one embodiment, the hinge member 200 includes a first mounting portion 210 disposed toward a first direction X, the first mounting portion 210 being used to connect the front lower protective member 3 and the longitudinal beam 22 of the frame assembly 2, wherein at least a portion of the front lower protective member 3 and the longitudinal beam 22 are misaligned after connection.

[0049] Specifically, after the support hole 320 of the front lower protective member 3 matches and connects with the first mounting hole 211 arranged above, the position of at least a portion of the front lower protective member 3 matches the position of the protruding part. In the third direction Z, a portion of the front lower protective member 3 is at the same height as the longitudinal beam 22 (or crossbeam 21), and a portion of the front lower protective member 3 is at the same height as a portion of the transition member 500, so that at least a portion of the connected front lower protective member 3 is misaligned with the longitudinal beam 22 (or crossbeam 21) and located between the longitudinal beam 22 (or crossbeam 21) and the front lower auxiliary protective member 600. In the first direction X, the front lower protective member 3 and the front lower auxiliary protective member 600 constitute a continuous protective system for the frame assembly 2. In the third direction Z, the position of the front lower protective member 3 fills the gap between the front lower auxiliary protective member 600 and the crossbeam 21, improving the overall strength.

[0050] The main manufacturing processes for the components of the connecting device 1 are stamping and welding, roll forming, and profile extrusion forming. Stamping and welding offers strong adaptability, a short development cycle, and versatility in shape, without requiring consistent cross-sections, allowing for adjustments based on actual conditions during future use. Roll forming is cost-effective if shared across multiple vehicle models. Extrusion forming allows for cross-sectional shapes that the former two methods cannot achieve, resulting in low cost, and welding structures are also cost-effective.

[0051] Understandably, the front suspension member 100, the articulation member 200, the front lower protective member 3, and the transition member 500 are all provided in pairs. The front suspension member 100 includes a left front suspension member and a right front suspension member, which are symmetrically arranged on both sides of the frame assembly 2 along the first direction X. The articulation member 200 includes a left articulation member and a right articulation member, which are symmetrically arranged on both sides of the frame assembly 2 along the first direction X. The front lower protective member 3 includes a left front lower protective member and a right front lower protective member, which are symmetrically arranged on both sides of the frame assembly 2 along the first direction X. The transition member 500 includes a left transition member and a right transition member, which are symmetrically arranged on both sides of the frame assembly 2 along the first direction X. The above description only considers the members on the right (or left) side as a group; the structure of the other side is the same.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A vehicle body front suspension connection device, characterized in that, The connecting device connects the vehicle frame assembly, the front lower protective component, and the cab. The connecting device includes: A front suspension component is connected to the cab so that the cab is mounted on the frame assembly; An articulated member, connected to the front suspension member and the frame assembly, such that the cab is rotatably connected to the frame assembly; the front lower guard member is connected to the articulated member; and A transition member, the hinge member including an extension extending from the frame assembly, the transition member connecting the side of the extension away from the front lower guard member and the frame assembly; Wherein, at least a portion of the front lower protective member is positioned to match the position of the protrusion; in the third direction, a portion of the front lower protective member is at the same height as the longitudinal beam or crossbeam of the frame assembly, and a portion of the front lower protective member is at the same height as a portion of the transition member, such that at least a portion of the connected front lower protective member is misaligned with the longitudinal beam or crossbeam and is located between the longitudinal beam or crossbeam and the front lower auxiliary protective member.

2. The vehicle body front suspension connection of claim 1, wherein The hinge member includes a first mounting portion disposed in a first direction, the first mounting portion having at least four first mounting holes, the front lower protective member being connected to the hinge member through the mounting holes, the first direction being the extension direction of the crossbeam of the frame assembly.

3. The vehicle body front suspension connection of claim 2, wherein, The frame assembly includes a alignment portion arranged parallel to the first mounting portion. The alignment portion has a first alignment hole, which is matched with at least a portion of the first mounting hole. The connecting device further includes a first fastener, which passes through the front lower protective member, the first mounting hole, and the first alignment hole in sequence to connect the front lower protective member, the hinge member, and the frame assembly to each other.

4. The vehicle body front suspension connection device according to claim 2, characterized in that, The connecting device further includes a support member, which is sleeved on one end of the front lower protective member. The support member has a support hole that matches the first mounting hole.

5. The vehicle body front suspension connection device according to claim 1, characterized in that, The hinge member includes a first mounting portion and a second mounting portion spaced apart from each other. The first mounting portion is used to connect to the front lower protective member and is oriented in a first direction. The second mounting portion is oriented differently from the first mounting portion and can be rotatably connected to the front suspension member.

6. The vehicle body front suspension connection device according to claim 5, characterized in that, The second mounting portion includes a semi-circular rotating groove, the hinge member further includes a semi-circular fixing member, the front suspension member includes a rotating shaft, and the fixing member is connected to the second mounting portion such that the fixing member and the rotating groove are arranged around the rotating shaft.

7. The vehicle body front suspension connection device according to claim 1, characterized in that, The connecting device further includes a front lower auxiliary protective member, which is connected to the mounting groove of the frame assembly. The front lower auxiliary protective member is arranged parallel to the crossbeam of the frame assembly and located below the crossbeam. The front lower auxiliary protective member is spaced apart from the hinge member.

8. The vehicle body front suspension connection device according to claim 1, characterized in that, The hinge member includes a first mounting portion disposed in a first direction, the first mounting portion being used to connect the front lower protective member and the longitudinal beam of the frame assembly, wherein at least a portion of the connected front lower protective member is misaligned with the longitudinal beam.

9. A vehicle, characterized in that, Includes the vehicle body front suspension connection device as described in any one of claims 1 to 8.

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