Vehicle body suspension mounting structure and mounting method

Abstract

The invention relates to the technical field of vehicle suspension, in particular to a vehicle body suspension mounting structure and method. The suspension installation structure comprises a nut box, the nut box comprises a reinforcing bottom plate, a Z-direction limiting plate and a plurality of limiting side plates, the reinforcing bottom plate is provided with a bottom plate through hole in a penetrating mode, the limiting side plates are connected with the reinforcing bottom plate and the Z-direction limiting plate to form a movable cavity for containing a nut assembly, and the movable cavity is used for providing X-direction and Y-direction movable spaces for the nut assembly to absorb the tolerance of the whole vehicle. At least one limiting side plate abuts against and limits rotation of the nut assembly when the nut assembly is bolted. The supporting pipe is arranged on one side of the reinforcing bottom plate corresponding to the bottom plate via hole to support the nut box; and the supporting bottom support is arranged at the bottom end of the supporting pipe and supports the supporting pipe in the Z direction. The limiting side plate is connected with the reinforcing bottom plate and the Z-direction limiting plate to form a movable cavity to absorb the tolerance of the whole vehicle, the limiting side plate can limit rotation of the nut assembly during bolting, and the Z-direction limiting plate can move the nut assembly in the Z direction during bolting.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle suspension, and in particular to a vehicle body suspension mounting structure and a mounting method. Background Art

[0002] The non-load-bearing body is mainly connected to the frame through suspension nuts and bolts. The suspension mounting point is the most direct force point of the body under the ground impact load, and the suspension mounting point on the body is required to have higher strength. Due to the vehicle tolerance caused by reasons such as the shape and size of the body, the nuts at the suspension mounting points need a certain amount of space to adjust the position to adapt to the bolting bolts, and a limiting structure is also required to prevent the nuts from rotating and moving in the Z direction when bolted.

[0003] Patent publication number "CN112776905A" discloses a suspension mounting point reinforcement structure, a suspension mounting assembly and a vehicle having the same, wherein the suspension mounting point reinforcement structure comprises: a reinforcement beam, the reinforcement beam is used to be arranged on the rear floor of the vehicle body, the lower surface of the reinforcement beam is provided with a connection portion connected to the rear floor, the reinforcement beam is provided with a mounting portion penetrating the upper and lower surfaces of the reinforcement beam; a mounting plate, the mounting plate cooperates with the mounting portion and is connected to the reinforcement beam, and the mounting plate is provided with a mounting hole for connecting to the rear floor. The strength of the suspension mounting point reinforcement structure still needs to be improved, and it cannot solve the problem that the nut needs to have a movable space to adjust the position to solve the installation tolerance and prevent the nut from rotating and moving in the Z direction when bolted. Summary of the invention

[0004] The main purpose of the present invention is to solve the problem that the nut needs to adjust the position to solve the installation tolerance and prevent the nut from rotating and moving in the Z direction when bolted, and to provide a vehicle body suspension installation structure.

[0005] The technical solution adopted by the present invention is: a vehicle body suspension installation structure, used to be arranged on a connected member, comprising:

[0006] A nut box, the nut box comprising a reinforced bottom plate with bottom plate through-holes, a Z-direction limit plate, and a plurality of limit side plates connecting the reinforced bottom plate and the Z-direction limit plate to form an active chamber for accommodating the nut assembly, the active chamber is used to provide an active space for the nut assembly in the X-direction and the Y-direction to absorb the vehicle tolerance, and at least one limit side plate abuts against and limits the rotation of the nut assembly when the nut assembly is bolted;

[0007] A support tube, wherein the support tube is arranged on one side of the reinforced bottom plate corresponding to the bottom plate through hole;

[0008] The support base is arranged at the bottom end of the support tube to support the support tube in the Z direction.

[0009] Furthermore, the nut assembly includes a nut and a nut plate fixed at the bottom end of the nut, and the nut plate is abutted and limited by a limiting side plate when bolted.

[0010] Furthermore, the plurality of limiting side plates include two limiting side plates that are spaced apart and arranged opposite to each other, and a distance between the two opposite limiting side plates is greater than the sum of a length of the nut assembly in the opposite direction and twice the tolerance of the entire vehicle.

[0011] Furthermore, it also includes a floor beam with beam through holes and a reinforcement ring, the reinforcement base plate and the support pipe are respectively arranged on both sides of the connected parts; the reinforcement ring is sleeved outside the support pipe to support the connected parts.

[0012] Further, the support tube includes a conical platform formed by radial expansion at the lower end;

[0013] Furthermore, the reinforcement ring includes a reinforcement flap formed by folding the end portion, and the reinforcement ring is snugly sleeved outside the support tube to support the connected component through the reinforcement flap.

[0014] Furthermore, the reinforcement ring includes a first half ring and a second half ring, and the first half ring and the second half ring both extend along the outer circumference of the support tube toward upper and lower ends and form reinforcement flaps at both ends.

[0015] Furthermore, the supporting base includes a base side plate extending toward one side of the nut box and a base flap folded on the base side plate; when the supporting base supports the supporting tube, the base flap abuts against the supporting tube to support the connected component.

[0016] Furthermore, the connected member comprises a floor beam with a beam through hole; a reinforcing bottom bracket for supporting a supporting bottom bracket is fixedly provided on one side of the floor beam.

[0017] Furthermore, the floor beam includes a beam side cover plate extending downward from the end; one side of the reinforcing base is provided with an inner flap supporting the floor beam extending along the bottom surface of the supporting base, and the other side extends outward and is provided with an outer flap for fitting the beam side cover plate.

[0018] Furthermore, it also includes a reinforced mounting plate fixedly mounted on the floor cross beam, which is used to install the nut box and diagonally support and fix the cross beam side sealing plate.

[0019] Furthermore, the reinforced mounting plate is provided with mounting holes, and the nut box is fixed on the reinforced mounting plate corresponding to the mounting holes; the reinforced mounting plate is provided on the floor beam corresponding to the beam holes, and one end is folded at an angle to tilt and support the beam side sealing plate.

[0020] Furthermore, the reinforced mounting plate and the reinforced bottom bracket are arranged on both sides of the floor beam and are fixedly connected with the side sealing plates of the beam to form a beam-type structure.

[0021] Furthermore, the end of the floor beam is provided with an upwardly extending rear enclosure connecting plate, which abuts against the reinforcing mounting plate and is connected with the beam side sealing plate to close the floor beam cavity; the rear enclosure connecting plate is provided with positioning holes and bumper mounting holes for fixed installation.

[0022] Furthermore, it also includes a pillar inner panel angle plate, a pillar inner reinforcement plate and a pillar outer reinforcement plate arranged on the rear enclosure connecting plate, the two ends of the pillar inner panel angle plate are respectively connected to the pillar inner reinforcement plate and the pillar outer reinforcement plate to form a beam-type pillar supporting the vehicle body; the pillar outer reinforcement plate is connected to the upper end of the crossbeam side sealing plate.

[0023] Furthermore, a supporting rib connected to the outer reinforcement plate of the pillar is fixedly connected to the rear enclosure connecting plate, and is used to support the outer reinforcement plate of the pillar in the Y direction.

[0024] Furthermore, the connected part includes a hollow water tank column, which includes a crossbeam side cover plate; the supporting base is fixed to the bottom of the water tank column; the supporting pipe is arranged on the supporting base to support the nut box; the nut box is provided with an anti-rotation structure for abutting against the inner wall of the water tank column to limit the rotation of the nut box when bolted.

[0025] Furthermore, the anti-rotation structure includes a reinforced side plate arranged on the reinforced bottom plate, and the reinforced side plate is fitted and fixed to the inner wall of the water tank column.

[0026] According to another aspect of the present invention, there is also provided a method for installing a vehicle body suspension mounting structure, which is used to install the vehicle body suspension mounting structure provided by the present invention, and the installation method comprises:

[0027] The nut assembly is placed on the reinforced bottom plate corresponding to the bottom plate through hole; a plurality of limiting side plates and a Z-direction limiting plate are welded and connected on the reinforced bottom plate to form an active chamber for accommodating the nut assembly;

[0028] Weld the reinforcing bottom plate and the supporting tube to both sides of the floor beam corresponding to the through holes of the beam;

[0029] The reinforcing ring is set outside the supporting tube to support the floor beam;

[0030] The supporting base is arranged at the bottom end of the supporting tube and welded to the floor beam.

[0031] According to a method for installing a vehicle body suspension installation structure provided by the present invention, a plurality of limiting side plates and a Z-direction limiting plate are welded and connected on a reinforcing bottom plate to form an active chamber for accommodating a nut assembly, comprising:

[0032] At least one set of opposite limiting side plates is welded and connected on the reinforced bottom plate at a set spacing; Z-direction limiting plates are welded on multiple limiting side plates; the set spacing is greater than the sum of the length of the nut assembly in the opposite direction and twice the vehicle tolerance.

[0033] According to a method for installing a vehicle body suspension mounting structure provided by the present invention, the reinforcing ring is sleeved on the outside of a supporting tube to support a floor beam, comprising: after the supporting tube is welded to the floor beam through holes corresponding to the beams, the first half ring and the second half ring are enclosed and fixedly connected outside the supporting tube to form a reinforcing ring, and the reinforcing flap of the reinforcing ring is welded to the floor beam.

[0034] A method for installing a vehicle body suspension installation structure according to the present invention further includes the following steps:

[0035] Place the reinforcing base against the supporting base, weld the inner flap to the floor beam, and weld the outer flap to the side cover of the beam;

[0036] Weld the rear enclosure connecting plate to the floor crossbeam, weld the reinforcing mounting plate corresponding to the crossbeam through-holes on the floor crossbeam, and weld one end of the reinforcing mounting plate to the crossbeam side sealing plate.

[0037] The beneficial effects of the present invention include: 1. A movable chamber is formed by connecting a plurality of limiting side plates with a reinforced bottom plate and a Z-direction limiting plate, so that the nut assembly can be moved in the X-direction and Y-direction to adjust the position in the movable chamber to absorb the tolerance of the whole vehicle. The Z-direction limiting plate can move the nut assembly in the Z direction when bolted. When the nut assembly is bolted, a plurality of limiting side plates can be pressed against the nut assembly to limit its rotation, so as to facilitate bolting; the strength of the suspension installation point can be strengthened by strengthening the bottom plate, and the support base and the support tube can significantly strengthen the Z-direction strength of the suspension installation point;

[0038] 2. The suspension installation structure of the present invention can be applied to the floor beam, the nut box and the support pipe respectively abut the floor beam in the Z direction, and the reinforcing ring sleeve is arranged outside the support pipe to support the floor beam, so as to further improve the strength of the suspension installation point of the floor beam;

[0039] 3. The lower end of the support tube is in a conical table structure, which can improve the anti-rollover ability of the suspension installation point and maintain the load transfer in the Z direction; the reinforcement flap of the reinforcement ring increases the contact area with the floor beam and improves the support strength;

[0040] 4. Due to the cone-shaped structure at the bottom of the support tube, it is impossible to sleeve the support tube from bottom to top. The reinforcement ring adopts a split first half ring and a second half ring, which can be sleeved on the support tube after the support tube is fixed to the floor beam, and welded to support the floor beam;

[0041] 5. When supporting the support tube, the support base can support the floor beam through the support side plate and the support flap. The support flap can increase the contact area with the floor beam and improve the support strength.

[0042] 6. The suspension installation structure can be applied to the floor beam, and the rigidity of the floor beam suspension installation point can be further enhanced by strengthening the bottom bracket;

[0043] 7. One side of the strengthening base abuts against the supporting base to limit the supporting base in the Y direction, and the other side abuts against the beam side sealing plate through the outer flap to enhance the support strength in the Y and X directions. The beam side sealing plate can seal the end surface of the tube cavity formed by the floor beam to enhance the strength of the floor beam;

[0044] 8. The strengthening installation plate is arranged on the floor beam to enhance the strength of the floor beam. One end of the strengthening installation plate is folded and then diagonally braced to fix the side cover plate of the beam, which can enhance the strength in the X and Y directions and disperse the load to the side of the floor beam.

[0045] 9. The suspended vehicle body structure of the present invention can be applied to the water tank column to connect the vehicle frame, and has higher versatility. The nut box can be fixedly connected to the inner wall of the water tank column to transfer the load, and the supporting base can be used as the bottom cover of the water tank column to receive the supporting pipe, thereby improving the installation strength of the water tank column;

[0046] 10. The pillar inner plate angle plate, the pillar inner side reinforcement plate and the pillar outer side reinforcement plate can be installed through the rear wall connection plate to form a beam-type pillar supporting the vehicle body, which can be directly fixed to the vehicle body to support the vehicle body;

[0047] 11. The present invention provides a method for installing a vehicle body suspension mounting structure, which can be used to install the vehicle body suspension mounting structure of the present invention. The installation method has simple steps and can quickly install the suspension mounting structure while ensuring the movable chamber and anti-rotation limit function.

[0048] The vehicle body suspension mounting structure of the present invention forms an active chamber by connecting a plurality of limiting side plates with a reinforced bottom plate and a Z-direction limiting plate, so that the nut assembly can be moved in the X-direction and the Y-direction to adjust its position in the active chamber to absorb the tolerance of the entire vehicle. At the same time, the limiting side plates can limit the rotation of the nut assembly when bolted, and the Z-direction limiting plate can move the nut assembly in the Z direction when bolted. In combination with the support tube and the support base, the suspension mounting point can have higher strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 : A schematic diagram of the suspension installation structure of the present invention;

[0050] Figure 2 : Schematic diagram of the nut box structure of the present invention;

[0051] Figure 3 : Schematic diagram of the structure of the suspended installation structure connected to the floor beam;

[0052] Figure 4 :for Figure 3 A schematic diagram of an enlarged structure of a suspension installation point;

[0053] Figure 5 : Schematic diagram of the exploded structure of the suspended mounting structure connected to the floor beam;

[0054] Figure 6 : A cross-sectional view of the suspension mounting structure connected to the floor beam;

[0055] Figure 7 : Schematic diagram of the structure of the reinforced mounting plate;

[0056] Figure 8 : Schematic diagram of the structure of the beam support of the floor beam;

[0057] Fig. 9 : Schematic diagram of the structure of the suspension mounting structure connected to the frame;

[0058] Fig.10 : Schematic diagram of the structure of the suspension installation structure connected to the water tank column;

[0059] Fig.11 : Schematic diagram of the exploded structure of the suspension installation structure connected to the water tank column;

[0060] Among them: 1—floor crossbeam; 2—reinforced mounting plate; 3—rear enclosure connecting plate; 4—crossbeam side sealing plate; 5—nut box; 6—reinforced bottom bracket; 61—inner flap; 62—outer flap; 7—limiting side plate; 8—reinforced flap; 9—water tank column; 10—column side sealing plate; 101—upper column side sealing plate; 102—lower column side sealing plate; 11—Z-direction limiting plate; 12—nut assembly; 13—reinforced bottom plate; 14—first half ring; 15—second half ring; 16—support pipe; 17—support bottom bracket; 171—bottom bracket flap; 18—body suspension; 19—frame suspension mounting bracket; 20—frame; 21—bolt; 22—pillar inner plate angle plate; 23—pillar outer reinforcement plate; 24—support rib plate; 25—pillar inner reinforcement plate. DETAILED DESCRIPTION

[0061] The embodiments of the present invention are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and the accompanying drawings are not drawn to scale and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0062] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0064] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0065] The present invention relates to a vehicle body suspension mounting structure, which forms an active chamber by connecting a plurality of limiting side plates 7 with a reinforcing bottom plate 13 and a Z-direction limiting plate 11, so that a nut assembly 12 can be moved in the active chamber in the X-direction and the Y-direction to adjust its position to absorb the tolerance of the whole vehicle. At the same time, the limiting side plates 7 can limit the rotation of the nut assembly 12 when bolted, and the Z-direction limiting plate 11 can move the nut assembly 12 in the Z-direction when bolted. The strength of the suspension mounting point can be enhanced by cooperating with a support tube 16 and a support base 17, thereby solving the problem that the nut needs active space to adjust its position to solve the installation tolerance and prevent the nut from rotating and moving in the Z-direction when bolted.

[0066] Example 1

[0067] A vehicle body suspension mounting structure is used to be installed on the connected parts for connection and to increase strength. The connected parts refer to the parts used for suspension bolting, including the vehicle body, the frame or the parts installed thereon. Figure 1-9 As shown, it includes a nut box 5, a support tube 16 and a support base 17. The nut box 5 includes a reinforced bottom plate 13 with bottom plate through holes, a Z-direction limit plate 11 and a plurality of limit side plates 7 connecting the reinforced bottom plate 13 and the Z-direction limit plate 11 to form an active chamber for accommodating the nut assembly 12. The active chamber is used to provide the nut assembly 12 with active space in the X and Y directions to absorb the tolerance of the entire vehicle. At least one limit side plate 7 abuts against and limits the rotation of the nut assembly 12 when the nut assembly 12 is bolted; the support tube 16 is provided on one side of the reinforced bottom plate 13 corresponding to the bottom plate through holes to support the nut box 5; the support base 17 is provided at the bottom end of the support tube 16 to support the support tube 16 in the Z direction. The plurality of limiting side plates 7 include two limiting side plates 7 that are spaced apart and arranged opposite to each other. The spacing between the two opposing limiting side plates 7 is greater than the sum of the length of the nut assembly 12 in the opposite direction and twice the tolerance of the vehicle, so that the nut assembly 12 can be moved to both ends in the opposite direction to adjust the position and absorb the tolerance of the vehicle to achieve installation. The plurality of limiting side plates 7 can be integrally formed with the reinforcing bottom plate 13 or the Z-direction limiting plate 11. The nut box 5, the support tube 16 and the support base 17 increase the Z-direction strength of the suspension installation point. When in use, the suspension installation structure is arranged on one side of the suspension installation point of the vehicle body or frame 20, and the bolts 21 and the vehicle body suspension 18 are used to bolt the vehicle body and the frame 20.

[0068] In one embodiment, if Figure 1 As shown, the nut assembly 12 includes a nut and a nut plate fixed at the bottom end of the nut. The nut plate is translated and adjusted in the movable chamber to absorb the tolerance and adapt to the bolting bolt 21. When bolting, the nut plate is rotated to a certain angle and then abutted by the limiting side plate 7 to limit its rotation, thereby realizing bolting; there is a gap between adjacent limiting side plates 7 and / or a through hole for the protruding bolt 21 is provided on the Z-direction limiting plate 11.

[0069] In one embodiment, if Figure 3-6 As shown, the reinforcing base plate 13 and the supporting tube 16 are respectively arranged on the upper and lower sides of the connected parts to strengthen the strength of the suspension installation points of the connected parts; preferably, the suspension installation structure also includes a reinforcing ring, which is sleeved on the outside of the supporting tube 16 to support the connected parts and further strengthen the installation strength of the connected parts.

[0070] In one embodiment, if Figure 1 As shown, the support tube 16 includes a conical platform formed by radial expansion of the lower end. The support tube 16 can be a conical platform structure, or can be formed by a combination of a circular tube segment and a conical platform, and there is no limitation here; the reinforcement ring includes a reinforcement flap 8 formed by folding the end portion (one or both ends in the Z direction), and the reinforcement flap 8 is flush with the end surface of the support tube 16 when the reinforcement ring is sleeved outside the support tube 16, and can be flat against the reinforcement base plate 13 that supports the connected part or the nut box 5; preferably, the reinforcement ring is snugly sleeved outside the support tube 16.

[0071] When applied to the floor beam 1, the connected part is the floor beam 1, and the vehicle body is connected to the frame through the floor beam 1. Figure 5-6 As shown, the reinforcement ring is fitted outside the support tube 16 to support the floor beam 1 through the reinforcement flap 8. The conical structure can improve the anti-rolling ability of the suspension installation point and maintain the load transfer in the Z direction; the reinforcement flap 8 of the reinforcement ring increases the contact area with the floor beam 1 and improves the support strength.

[0072] On the basis that the support tube 16 includes a conical platform formed by radial expansion of the lower end, as Figure 1 As shown, the reinforcement ring includes a first half ring 14 and a second half ring 15, and the first half ring 14 and the second half ring 15 both extend along the outer circumference of the support tube 16 to the upper and lower ends and form reinforcement flaps 8 at both ends. Since the lower end of the support tube 16 is a conical table structure, the reinforcement ring is set to fit the support tube 16 and cannot be sleeved on the support tube 16 from the bottom to the top. In order to ensure that the support column can be fixedly connected to the nut box 5 or the vehicle body or the frame 20 to increase the strength, the reinforcement ring adopts a split first half ring 14 and a second half ring 15, which can be enclosed and fixedly sleeved on the support tube 16 after the support tube 16 is fixed to the connected part, supporting the nut box 5 or the frame 20 or the vehicle body, as shown in FIG. Figure 6As shown, for example, the support tube 16 supports the floor beam 1, and the first half ring 14 and the second half ring 15 are enclosed and fixedly connected to form a reinforcing ring that fits snugly around the support tube 16, and are welded and connected to support the floor beam 1 through the reinforcing flap 8.

[0073] In one embodiment, the support base 17 is further described as follows: Figure 1 , Figure 5-6 As shown, the support base 17 includes a base side plate extending toward one side of the nut box 5 and a base flap 171 folded on the base side plate. When the support base 17 supports the support tube 16, the base flap 171 abuts against the support tube 16 to support the connected member or the nut box 5. When applied to the floor beam 1, when the support base 17 supports the support tube 16, the base flap 171 abuts against the support tube 16 to support the floor beam 1. The base flap 171 can increase the contact area with the floor beam 1 and form a multi-layer cavity beam structure at the suspension installation point of the floor beam 1, making it stronger.

[0074] In certain embodiments, such as Figure 5-6 As shown, the suspension installation structure is applied to the floor beam 1 , the floor beam 1 is provided with a beam through hole, and a reinforcing base 6 is fixedly provided on one side of the floor beam 1 for supporting the support base 17 .

[0075] Based on the suspension installation structure including a reinforced bottom bracket 6, such as Figure 5-6 As shown, the floor beam 1 includes a beam side cover plate 4 which is arranged at the end and extends downward, the beam side cover plate 4 is arranged on the end surface of the floor beam 1, and a reinforcing base 6 is arranged on the bottom side of the floor beam 1 (beam bottom plate) to support the supporting base 17; one side of the reinforcing base 6 extends along the bottom surface of the supporting base 17 to provide an inner flap 61 for supporting the floor beam 1, and the other side extends outward and is provided with an outer flap 62 for fitting with the beam side cover plate 4. The inner flap 61 abuts against the bottom support flap 171 or the floor beam 1, and the reinforced bottom support 6 includes a reinforced side plate extending along the bottom surface of the supporting bottom support 17. The reinforced side plate abuts against the bottom support side plate of the supporting bottom support 17, which can limit the supporting bottom support 17 in the Y direction (the length direction of the floor beam 1). The other side abuts against the beam side sealing plate 4 through the outer flap 62 to enhance the support strength in the Y and X directions. The beam side sealing plate 4 can seal the end surface of the tube cavity formed by the floor beam 1 and enhance the strength of the floor beam 1. The reinforced bottom support 6 further enhances the strength of the suspension installation point on the basis of the single-layer supporting bottom support 17.

[0076] In one embodiment, if Figure 5-7 As shown, the suspension mounting structure of the present invention also includes a reinforced mounting plate 2, which is used to install the nut box 5 and obliquely support and fix the beam side sealing plate 4 to transfer the load to the side of the floor beam 1. The reinforced mounting plate 2 obliquely supports the beam side sealing plate 4 to strengthen the strength of the floor beam 1 in the X direction, the Y direction and the Z direction.

[0077] The suspension mounting structure also includes a reinforcing mounting plate 2, such as Figure 5-7 As shown, the reinforced mounting plate 2 is provided with mounting holes, and the bottom plate through holes of the nut box 5 are fixed on the reinforced mounting bottom plate corresponding to the mounting holes; when applied to the floor beam 1, the reinforced mounting plate 2 is provided on the floor beam 1 corresponding to the beam through holes, and one end is folded at an angle and tilted to support the beam side sealing plate 4, which can enhance the strength of the suspension mounting point in the X and Y directions, and distribute the load to the side of the floor beam 1.

[0078] In one embodiment, if Figure 6 As shown, the reinforced mounting plate 2 is bent upward and provided with a mounting plate flap that fits the crossbeam side sealing plate 4. The reinforced mounting plate 2 and the reinforced base 6 are arranged on both sides of the floor crossbeam 1 and are respectively fixed to the crossbeam side sealing plate 4 by the mounting plate flap and the outer flap 61 to form a cavity, that is, this suspension mounting point is reinforced into a cavity beam type structure. This structure has higher strength and better anti-roll performance, and can disperse the load to the side of the floor crossbeam 1 through the reinforced mounting plate 2 and the reinforced base 6.

[0079] The nut box 5, the support tube 16 and the support base 17 can be arranged corresponding to the suspension mounting points of the vehicle body or frame 20 to be connected, and are not limited to use on the floor beam 1; its additional reinforcement ring, reinforcement mounting plate 2 and reinforcement base 6 are also not limited to use on the floor beam 1. For example, when the reinforcement base 6 is applied to the frame 20, the inner flap 61 and the outer flap 62 of the reinforcement base 6 both support and abut the frame 20.

[0080] On the basis that the floor beam 1 is provided with a reinforcing mounting plate 2, as Figure 3-5 As shown, the end of the floor beam 1 (beam floor) is fixed with a rear enclosure connecting plate 3 extending upward, and the rear enclosure connecting plate 3 abuts against the reinforcing mounting plate 2 and is connected with the beam side sealing plate 4 to close the tube cavity of the floor beam 1; the rear enclosure connecting plate 3 is provided with a positioning hole and a bumper mounting hole for fixed installation. The split rear enclosure connecting plate 3 is easy to manufacture and form, and it is easy to open holes on the rear enclosure connecting plate 3 separately and bend it to make it suitable for installation. The rear enclosure connecting plate 3 and the side sealing plate 4 are connected to close the side and rear enclosure of the tube cavity of the floor beam 1. During installation, the rear enclosure connecting plate 3 is fixed through the positioning hole, and then welded to the beam side sealing plate 4 and the floor beam 1, which is convenient for production and installation.

[0081] Based on the end of the floor beam 1, a rear enclosure connecting plate 3 extending upward is fixedly arranged. Figure 8As shown, the suspension mounting structure also includes a pillar inner panel angle plate 22, a pillar inner side reinforcement plate 25 and a pillar outer side reinforcement plate 23 provided on the rear enclosure connection plate 3, the two ends of the pillar inner panel angle plate 22 are respectively connected to the pillar inner side reinforcement plate 25 and the pillar outer side reinforcement plate 23 to form a beam-type pillar supporting the vehicle body, and the beam-type pillar can be directly fixed to the vehicle body to support the vehicle body; the pillar outer side reinforcement plate 23 is connected to the upper end of the cross beam side sealing plate 4. Preferably, a supporting rib plate 24 connected to the pillar outer side reinforcement plate 23 is fixed to the rear enclosure connection plate 3, which is used to support the pillar outer side reinforcement plate 23 in the Y direction.

[0082] On the basis of the beam-type support formed on the floor beam 1, as Figure 8 As shown, a supporting rib 24 connected to the outer reinforcing plate 23 of the pillar is fixedly connected to the rear enclosure connecting plate 3, which is used to support the outer reinforcing plate 23 of the pillar in the Y direction and support the front enclosure and rear enclosure connecting plate 3 of the floor beam 1 in the X direction, thereby improving the strength of the floor beam 1.

[0083] When the suspension installation structure is applied to the floor beam 1 and connected to the frame 20, Fig. 9 As shown, the top surface of the floor beam 1 is provided with a reinforcement mounting plate 2 and a nut box 5, the bottom surface is welded with a support tube 16, a reinforcement ring is sleeved outside the support tube 16 to support the support bottom bracket 17 of the support tube 16, and a reinforcement bottom bracket 6 is supported by the support bottom bracket 17, the inner flap 61 inside the reinforcement bottom bracket 6 is welded to the floor beam 1, and the outer flap 62 is welded to the beam side sealing plate 4, the reinforcement bottom bracket 6 is supported on the vehicle body suspension 18, and the vehicle body suspension 18 is supported on the frame suspension mounting bracket 19, and the bolt 21 passes through the frame suspension mounting bracket 19, the vehicle body suspension 18, the reinforcement bottom bracket 6, the support bottom bracket 17, the floor beam 1 reinforcement mounting plate 2, and the reinforcement bottom plate 13 and is bolted with nuts in sequence. This suspension mounting structure can be symmetrically arranged at both ends of the floor beam 1 to connect the frame 20. The bottom plate of the single-layer floor beam 1 is increased to a multi-layer reinforcement structure, so that the suspension installation point of the floor beam 1 has greater strength, and the load can be transferred to the side and rear panels near the suspension installation point, and the end of the bottom beam is directly used as the suspension installation point without the need for additional suspension installation brackets.

[0084] In actual use, the limiting side plate 7 and the Z-direction limiting plate 11 are integrally formed, and a plurality of limiting side plates 7 form a rectangular structure. The spacing between the opposing limiting side plates 7 is greater than the sum of the length of the nut assembly 12 in the opposite direction and twice the tolerance of the vehicle. The plurality of limiting side plates 7 are welded to the reinforcing bottom plate 13, and the reinforcing bottom plate 13 is welded to the reinforcing mounting plate 2. The reinforcing mounting plate 2 is welded to the rear enclosure connecting plate 3 and the floor cross beam 1 (cross beam bottom plate) and the side enclosure plate. The support tube 16 is welded to the side of the floor cross beam 1 corresponding to the cross beam through hole, and the first half ring 14 and the second half ring 15 are enclosed and sleeved outside the support tube 16 and welded or bolted to form a reinforcing ring The reinforcing flap 8 of the reinforcing ring is welded to the floor crossbeam 1, the supporting base 17 supports the supporting tube 16 and is welded to the floor crossbeam 1, the inner end of the reinforcing base 6 fits the supporting base 17 and is welded to the floor crossbeam 1 or the base flap 171 through the inner flap 61, and the outer end is welded to the crossbeam side sealing plate 4 through the outer flap 62; during installation, the through holes of each component are correspondingly connected and suitable for the bolts 21 to pass through and be bolted to the nuts; the rear enclosure connecting plate 3 and the inner reinforcing plate 25 of the pillar, the outer reinforcing plate 23 of the pillar and the inner plate angle plate 22 of the pillar together form a beam-type pillar supporting the vehicle body, which can be used to directly connect to support the vehicle body.

[0085] Example 2

[0086] The suspension installation structure of this embodiment is applied to the water tank column 9 connected to the vehicle body, that is, the connected part is the water tank column 9, and the water tank column 9 is connected to the frame 20 through the suspension installation structure. Figure 10-11 As shown, the water tank column 9 includes a column side sealing plate 10, which is used to close the water tank column 9 after the suspension mounting structure is installed on the water tank column 9; the support base 17 is fixed to the bottom end of the water tank column 9, and the support base 17 is provided with a base through hole, and the support tube 16 is provided on the support base 17 corresponding to the base through hole to support the nut box 5; the nut box 5 is located in the cavity of the water tank column 9 and is provided with an anti-rotation structure, which is used to abut the inner wall of the water tank column 9 to limit the rotation of the nut box 5 when bolted.

[0087] like Fig.11 As shown, the anti-rotation structure includes a reinforced side plate arranged on the reinforced bottom plate 13, and the reinforced side plate is fixedly arranged on the inner wall of the water tank column 9.

[0088] Preferably, if Fig.11 As shown, a plurality of reinforcing side panels are provided at the outer edge of the reinforced bottom plate 13 corresponding to the inner wall of the water tank column 9, one of which is shorter than the other reinforced side panels. The shorter reinforced side panel is placed inside the water tank column 9 corresponding to one side of the column side sealing plate 10, so as to facilitate welding the reinforced side panel to the inner wall of the water tank column 9 through this side.

[0089] In order to strengthen the strength of the support bracket 17 connected to the water tank column 9, as Fig.11As shown, the edge of the supporting base 17 is provided with a plurality of base side plates corresponding to the side wall of the water tank column 9, and the base side plates are fixedly connected to the water tank column 9.

[0090] When the water tank column 9 is provided with a bottom plate, the support base 17 is arranged on the bottom plate. The support base 17 can also be arranged at the bottom end of the water tank column 9 as the bottom plate.

[0091] Similarly, the suspension installation structure of this embodiment may also include a reinforcement ring sleeved outside the support tube 16; the support tube 16 may also include a conical structure.

[0092] During actual installation, the support base 17 is welded to the bottom end of the water tank column 9 as a plugging plate, the support tube 16 is welded to the support base 17 through the base hole, the shorter reinforced side plate of the nut box 5 is placed in the water tank column 9 corresponding to the column side sealing plate 10 to abut the end face of the support tube 16, and multiple reinforced side plates are welded to the inner wall of the water tank column 9 one by one, and then the column side sealing plate 10 is covered. The column side sealing plate 10 consists of an upper column side sealing plate 101 and a lower column side sealing plate 102. The thickness of the lower column side sealing plate is greater than that of the upper column side sealing plate. The column side sealing plate 10 is bolted to the water tank column 9. When in use, the body suspension 18 is placed at the bottom of the water tank column 9, and the bolts 21 are passed through the frame suspension mounting bracket 19, the body suspension 18, the support base 17, the support tube 16, the reinforced base plate 13 and the nut assembly to be bolted.

[0093] Example 3

[0094] Another aspect of the present invention further provides a method for installing a vehicle body suspension mounting structure, which is used to install the vehicle body suspension mounting structure provided by the present invention. The installation method comprises:

[0095] S1. Place the nut assembly 12 corresponding to the bottom plate through hole on the reinforced bottom plate 13; weld and connect a plurality of limiting side plates 7 and the Z-direction limiting plate 11 on the reinforced bottom plate 13 to form an active chamber for accommodating the nut assembly 12;

[0096] S2, welding the reinforcing bottom plate 13 and the supporting tube 16 to the two sides of the floor beam 1 corresponding to the beam through holes;

[0097] S3, a reinforcing ring is set outside the supporting tube 16 to support the floor beam 1;

[0098] S4, setting the supporting base 17 at the bottom end of the supporting tube 16 and welding it to the floor beam 1.

[0099] According to a method for installing a vehicle body suspension installation structure provided by the present invention, in step S1, a plurality of limiting side plates 7 and a Z-direction limiting plate 11 are welded and connected on a reinforcing bottom plate 13 to form an active chamber for accommodating a nut assembly 12, including:

[0100] S11. Weld and connect at least one set of opposite limiting side plates 7 on the reinforcing bottom plate 13 at a set interval; weld the Z-direction limiting plates 11 on multiple limiting side plates 7; and set the interval to be greater than the sum of the length of the nut assembly 12 in the opposite direction and twice the vehicle tolerance.

[0101] According to a method for installing a vehicle body suspension installation structure provided by the present invention, in step S3, the reinforcing ring is sleeved outside the support tube 16 to support the floor beam 1, including:

[0102] S31, after the support tube 16 is welded to the floor beam 1 through the corresponding beam through hole, the first half ring 14 and the second half ring 15 are welded or bolted together outside the support tube 16 to form a reinforcement ring, and the reinforcement flap 8 of the reinforcement ring is welded to the floor beam 1.

[0103] A method for installing a vehicle body suspension installation structure according to the present invention further includes the following steps:

[0104] S5, the reinforcing base 6 is abutted against the supporting base 17, the inner flap 61 is welded to the floor beam 1, and the outer flap 62 is welded to the beam side sealing plate 4;

[0105] S6. Weld the rear enclosure connecting plate 3 to the floor crossbeam 1, weld the reinforcing mounting plate 2 to the floor crossbeam 1 corresponding to the crossbeam through-holes, and weld one end of the reinforcing mounting plate 2 to the crossbeam side sealing plate 4.

[0106] During actual installation, the limiting side plates 7 can be formed by symmetrically bending on the Z-direction limiting plates 11, so that the spacing between the limiting side plates 7 is greater than the sum of the length of the nut assembly 12 in the opposite direction and 2 times the tolerance of the whole vehicle; the nuts and nut plates are welded to form the nut assembly 12; the nut assembly 12 is placed between the limiting side plates 7, and the limiting side plates 7 are welded to the reinforcing bottom plate 13 to form the nut box 5; the reinforcing bottom plate 13 and the support tube 16 are respectively welded to the upper and lower sides of the bottom plate of the floor cross beam 1 corresponding to the cross beam through holes, and then the first half ring 14 and the second half ring 15 are enclosed and welded outside the support tube 16 Or bolted to form a reinforcement ring, and weld the reinforcement flap 8 of the reinforcement ring to the floor beam 1; set the supporting base 17 at the bottom end of the supporting tube 16, and weld the base flap 171 to the floor beam 1; the inner end of the reinforcing base 6 abuts against the side of the supporting base 17, and weld the inner flap 61 to the floor beam 1, and the outer flap 62 is welded to the beam side cover 4; weld the rear connecting plate 3 to the floor beam 1, weld the reinforcing mounting plate 2 to the floor beam 1 corresponding to the beam through hole, and weld one end of the reinforcing mounting plate 2 to the beam side cover 4.

[0107] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A vehicle body suspension mounting structure, used to be arranged on a connected member, characterized in that: include, A nut box (5), the nut box (5) comprising a reinforced bottom plate (13) with bottom plate through holes, a Z-direction limit plate (11), and a plurality of limit side plates (7) connecting the reinforced bottom plate (13) and the Z-direction limit plate (11) to form an active chamber for accommodating the nut assembly (12), the active chamber being used to provide the nut assembly (12) with active space in the X-direction and the Y-direction to absorb the tolerance of the whole vehicle, and at least one limit side plate (7) abuts against the nut assembly (12) to limit the rotation of the nut assembly (12) when the nut assembly (12) is bolted; A support tube (16), wherein the support tube (16) is arranged on one side of the reinforced bottom plate (13) corresponding to the bottom plate through hole; A support base (17) is arranged at the bottom end of the support tube (16) to support the support tube (16) in the Z direction.

2. A vehicle body suspension mounting structure as claimed in claim 1, characterized in that: It also includes a reinforcement ring. The reinforcement base plate (13) and the support tube (16) are respectively arranged on both sides of the connected part; the reinforcement ring is sleeved outside the support tube (16) to support the connected part.

3. A vehicle body suspension mounting structure as claimed in claim 2, characterized in that: The support tube (16) comprises a conical platform formed by radial expansion at the lower end; the reinforcement ring comprises a reinforcement flap (8) formed by folding the end portion, and the reinforcement ring is fittedly sleeved outside the support tube (16) to support the connected component via the reinforcement flap (8).

4. A vehicle body suspension mounting structure as claimed in claim 3, characterized in that: The reinforcement ring comprises a first half ring (14) and a second half ring (15), wherein the first half ring (14) and the second half ring (15) both extend along the outer circumference of the support tube (16) toward the upper and lower ends and form reinforcement flaps (8) at both ends.

5. A vehicle body suspension mounting structure according to any one of claims 1 to 4, characterized in that: The supporting base (17) comprises a base side plate extending toward one side of the nut box (5) and a base flap (171) folded on the base side plate; when the supporting base (17) supports the supporting tube (16), the base flap (171) abuts against the supporting tube (16) to support the connected component.

6. A vehicle body suspension mounting structure as claimed in claim 5, characterized in that: The connected member comprises a floor crossbeam (1) with a crossbeam through hole; a reinforcing bottom bracket (6) for supporting a supporting bottom bracket (17) is fixedly arranged on one side of the floor crossbeam (1).

7. A vehicle body suspension mounting structure as claimed in claim 6, characterized in that: The floor crossbeam (1) comprises a crossbeam side cover plate (4) arranged at the end and extending downward; an inner flap (61) for supporting the floor crossbeam (1) is provided on one side of the reinforcing base bracket (6) along the bottom surface of the supporting base bracket (17), and an outer flap (62) for fitting the crossbeam side cover plate (4) is provided on the other side of the reinforcing base bracket (6).

8. A vehicle body suspension mounting structure as claimed in claim 7, characterized in that: It also includes a reinforcing mounting plate (2) fixedly mounted on the floor crossbeam (1), which is used to mount the nut box (5) and diagonally support and fix the crossbeam side sealing plate (4).

9. A vehicle body suspension mounting structure as claimed in claim 8, characterized in that: The reinforced mounting plate (2) is provided with mounting through holes, and the nut box (5) is fixedly mounted on the reinforced mounting plate (2) corresponding to the mounting through holes; the reinforced mounting plate (2) is arranged on the floor beam (1) corresponding to the beam through holes, and one end is folded at an angle to tilt and support the beam side sealing plate (4).

10. The vehicle body suspension mounting structure according to claim 1, characterized in that: The connected part comprises a hollow water tank column (9), and the water tank column (9) comprises a column side sealing plate (10); the support bracket (17) is fixedly arranged at the bottom end of the water tank column (9); the support pipe (16) is arranged on the support bracket (17) to support the nut box (5); the nut box (5) is provided with an anti-rotation structure for abutting against the inner wall of the water tank column (9) to limit the rotation of the nut box (5) when bolted.

11. A method for installing a vehicle body suspension installation structure, characterized in that: Used to install the vehicle body suspension installation structure as described in any one of claims 6 to 9, the installation method includes: The nut assembly (12) is placed on the reinforced bottom plate (13) corresponding to the bottom plate through hole; a plurality of limiting side plates (7) and a Z-direction limiting plate (11) are welded and connected on the reinforced bottom plate (13) to form an active chamber for accommodating the nut assembly (12); The reinforcing bottom plate (13) and the supporting tube (16) are respectively welded to the two sides of the floor crossbeam (1) corresponding to the crossbeam through holes; A reinforcing ring is sleeved outside the supporting tube (16) to support the floor beam (1); The support base (17) is arranged at the bottom end of the support pipe (16) and welded to the floor beam (1).

Images