A vehicle body suspension mounting structure and a mounting method

Abstract

The present application relates to the technical field of vehicle suspension, and particularly relates to a vehicle body suspension mounting structure and a mounting method. The suspension mounting structure comprises a nut box, the nut box comprises a reinforced bottom plate provided with a bottom plate through hole, a Z-direction limiting plate, and a plurality of limiting side plates connecting the reinforced bottom plate and the Z-direction limiting plate to form a movable cavity accommodating a nut assembly, the movable cavity is used for providing a movable space of the nut assembly in an X-direction and a Y-direction to absorb a whole vehicle tolerance, at least one limiting side plate abuts and limits the rotation of the nut assembly when the nut assembly is bolted; a support pipe is arranged on one side of the reinforced bottom plate corresponding to the bottom plate through hole to support the nut box; and a support base is arranged at the bottom end of the support pipe to support the support pipe in a Z-direction. The movable cavity is formed by connecting the limiting side plates, the reinforced bottom plate and the Z-direction limiting plate to absorb the whole vehicle tolerance, the limiting side plates can limit the rotation of the nut assembly when the nut assembly is bolted, and the Z-direction limiting plate can move the nut assembly in a Z-direction when the nut assembly is bolted.

Description

TECHNICAL FIELD

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

[0002] The non-load-bearing vehicle body is connected with the frame mainly through the suspension nut bolt, and the suspension mounting point is the most direct force point of the vehicle body under ground impact load, so the suspension mounting point on the vehicle body is required to have high strength. Due to the whole vehicle tolerance caused by the shape and size of the vehicle body, the nut of the suspension mounting point needs a certain space to adjust the position to adapt to the bolt, and a limiting structure is also needed to prevent the nut from rotating and moving in the Z direction when bolted.

[0003] Patent publication No. "CN112776905A" discloses a suspension mounting point reinforcing structure, a suspension mounting assembly and a vehicle having the same. The suspension mounting point reinforcing structure comprises: a reinforcing beam arranged on the rear floor of the vehicle body, the lower surface of the reinforcing beam is provided with a connecting part connected with the rear floor, and the reinforcing beam is provided with a mounting part penetrating the upper and lower surfaces of the reinforcing beam; and a mounting plate connected with the mounting part and the reinforcing beam, and provided with a mounting hole for connecting with the rear floor. The strength of the suspension mounting point reinforcing structure still needs to be improved, and the problem of the need for space for the nut to adjust the position to solve the installation tolerance and prevent the nut from rotating and moving in the Z direction when bolted cannot be solved. SUMMARY

[0004] The main purpose of the present application is to solve the problem of the need for the nut 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 mounting structure.

[0005] The technical scheme adopted by the present application is: a vehicle body suspension mounting structure arranged on a connected part, comprising,

[0006] A nut box comprising a reinforcing bottom plate provided with a bottom plate via, a Z-direction limiting plate, and a plurality of limiting side plates connecting the reinforcing bottom plate and the Z-direction limiting plate to form an active cavity accommodating the nut assembly, the active cavity is used to provide the nut assembly with X-direction and Y-direction active space to absorb the whole vehicle tolerance, and at least one limiting side plate abuts and limits the rotation of the nut assembly when bolted;

[0007] A support pipe arranged on one side of the reinforcing bottom plate corresponding to the bottom plate via;

[0008] A support base arranged at the bottom end of the support pipe to support the support pipe in the Z direction.

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

[0010] Further, the plurality of limiting side plates include two limiting side plates arranged in pairs at intervals, and the distance between the two limiting side plates is greater than the sum of the length of the nut assembly in the opposite direction and 2 times the vehicle tolerance.

[0011] Further, it further comprises a floor crossbeam and a reinforcing ring provided with a crossbeam through hole, and the reinforcing bottom plate and the support pipe are respectively arranged on both sides of the connected component; the reinforcing ring is sleeved outside the support pipe to support the connected component.

[0012] Further, the support pipe comprises a conical table formed by radially expanding the lower end;

[0013] Further, the reinforcing ring comprises a reinforcing flap formed by folding the end portion, and the reinforcing ring is sleeved outside the support pipe to support the connected component through the reinforcing flap.

[0014] Further, the reinforcing ring comprises a first half ring and a second half ring, and the first half ring and the second half ring both extend to the upper and lower ends along the outer circumferential surface of the support pipe and form reinforcing flaps at the two ends.

[0015] Further, the support base comprises a base side plate extending to one side of the nut box and a base flap formed by folding the base side plate; when the support base supports the support pipe, the base flap and the support pipe both abut the connected component.

[0016] Further, the connected component comprises a floor crossbeam provided with a crossbeam through hole; one side of the floor crossbeam is fixedly provided with a reinforcing base for supporting the support base.

[0017] Further, the floor crossbeam comprises a crossbeam side sealing plate extending downward at the end portion; one side of the reinforcing base extends along the bottom surface of the support base and is provided with an inner side flap for supporting the floor crossbeam, and the other side extends outward and is provided with an outer side flap for abutting the crossbeam side sealing plate.

[0018] Further, it further comprises a reinforcing mounting plate fixedly arranged on the floor crossbeam, which is used for mounting the nut box and obliquely supporting the crossbeam side sealing plate.

[0019] Further, the reinforcing mounting plate is provided with a mounting through hole, and the nut box is fixedly arranged on the reinforcing mounting plate corresponding to the mounting through hole; the reinforcing mounting plate is arranged on the floor crossbeam corresponding to the crossbeam through hole, and one end is folded at an angle to obliquely support the crossbeam side sealing plate.

[0020] Further, the reinforcing mounting plate and the reinforcing base are arranged on both sides of the floor crossbeam and are fixedly connected with the crossbeam side sealing plate to form a beam structure.

[0021] Further, the floor beam end is provided with an upwardly extending rear wall connecting plate abutting the reinforced mounting plate and the beam side sealing plate to close the floor beam cavity; the rear wall connecting plate is provided with a positioning hole and a bumper mounting hole for fixed installation.

[0022] Further, it further comprises a pillar inner plate angle plate, a pillar inner side reinforcing plate and a pillar outer side reinforcing plate arranged on the rear wall connecting plate, the pillar inner plate angle plate is connected to the pillar inner side reinforcing plate and the pillar outer side reinforcing plate at two ends to form a beam type pillar supporting the vehicle body; the pillar outer side reinforcing plate is connected to the upper end of the beam side sealing plate.

[0023] Further, the rear wall connecting plate is fixedly connected with a support rib plate connected to the pillar outer side reinforcing plate, for supporting the pillar outer side reinforcing plate in the Y direction.

[0024] Further, the connected part comprises a hollow water tank column, the water tank column comprises a beam side sealing plate; the support base is fixedly arranged at the bottom of the water tank column; the support pipe is arranged on the support base to support a nut box; the nut box is provided with an anti-rotation structure for abutting the inner wall of the water tank column to limit the rotation of the nut box when being bolted.

[0025] Further, the anti-rotation structure comprises a reinforcing side plate arranged on the reinforcing base plate, and the reinforcing side plate is fixedly arranged on the inner wall of the water tank column.

[0026] According to another aspect of the present application, a mounting method of a vehicle body suspension mounting structure is also provided, which is used for mounting the vehicle body suspension mounting structure provided by the present application, and the mounting method comprises the following steps:

[0027] The nut assembly is arranged on the reinforcing base plate corresponding to the base plate through hole; a plurality of limiting side plates and Z-direction limiting plates are welded on the reinforcing base plate to form a movable cavity accommodating the nut assembly;

[0028] The reinforcing base plate and the support pipe are respectively welded on both sides of the floor beam corresponding to the beam through hole;

[0029] The reinforcing ring is arranged outside the support pipe to support the floor beam;

[0030] The support base is arranged at the bottom end of the support pipe and is welded on the floor beam.

[0031] According to the mounting method of the vehicle body suspension mounting structure provided by the present application, the step of welding a plurality of limiting side plates and Z-direction limiting plates on the reinforcing base plate to form a movable cavity accommodating the nut assembly comprises the following steps:

[0032] At least one set of opposite limiting side plates are welded on the reinforcing base plate at a set interval; the Z-direction limiting plates are welded on the plurality of limiting side plates; the set interval is greater than the sum of the length of the nut assembly in the opposite direction and twice the whole vehicle tolerance.

[0033] According to the mounting method of the body suspension mounting structure provided by the application, the reinforcing ring is sleeved outside the support pipe to support the floor beam, the first half ring and the second half ring are combined to be fixed to the support pipe to form the reinforcing ring, and the reinforcing flange of the reinforcing ring is welded to the floor beam.

[0034] According to the mounting method of the body suspension mounting structure provided by the application, the reinforcing ring is sleeved outside the support pipe to support the floor beam, the first half ring and the second half ring are combined to be fixed to the support pipe to form the reinforcing ring, and the reinforcing flange of the reinforcing ring is welded to the floor beam.

[0035] The inner flange is welded to the floor beam, and the outer flange is welded to the side sealing plate of the beam.

[0036] The rear wall connecting plate is welded to the floor beam, the reinforcing mounting plate is welded to the floor beam in correspondence with the beam through hole, and one end of the reinforcing mounting plate is welded to the side sealing plate of the beam.

[0037] The beneficial effects of the application include: 1. The plurality of limiting side plates are connected with the reinforcing bottom plate and the Z-direction limiting plate to form a movable chamber, so that the nut assembly can move in the X-direction and the Y-direction in the movable chamber to adjust the position to absorb the whole vehicle tolerance, the Z-direction limiting plate can move in the Z-direction when the nut assembly is bolted, and the plurality of limiting side plates can tightly abut against the nut assembly to limit the rotation of the nut assembly when the nut assembly is bolted, thereby facilitating the bolted connection; the reinforcing bottom plate can strengthen the strength of the suspension mounting point, and the support bottom support and the support pipe can significantly strengthen the Z-direction strength of the suspension mounting point.

[0038] 2. The suspension mounting structure can be applied to the floor beam, the nut box and the support pipe are respectively abutted against the floor beam in the Z-direction, and the reinforcing ring is sleeved outside the support pipe to support the floor beam, thereby further improving the strength of the suspension mounting point of the floor beam.

[0039] 3. The lower end of the support pipe is in a conical table structure, which can improve the anti-rolling capability of the suspension mounting point and maintain the transmission of the load in the Z-direction; the reinforcing flange of the reinforcing ring increases the contact area with the floor beam and improves the supporting strength.

[0040] 4. Due to the conical table structure of the bottom end of the support pipe, the reinforcing ring cannot be sleeved on the support pipe from the bottom to the top, and the reinforcing ring adopts the split first half ring and the second half ring, which can be combined and sleeved on the support pipe after the support pipe is fixed to the floor beam, and welded to the floor beam.

[0041] 5. When supporting the support pipe, the support bottom support can support the floor beam through the bottom support side plate and the bottom support flange, and the bottom support flange can increase the contact area with the floor beam and improve the supporting strength.

[0042] 6. The suspension mounting structure can be applied to the floor beam, and the reinforcing bottom support can further strengthen the rigidity of the suspension mounting point of the floor beam.

[0043] 7. The reinforced bottom support abuts against the supporting bottom support on one side, which plays a limiting role in the Y direction. The other side abuts against the side sealing plate of the crossbeam through the outer flap, which can enhance the support strength in the Y and X directions. The side sealing plate of the crossbeam can close the end face of the cavity formed by the floor crossbeam, and enhance the strength of the floor crossbeam.

[0044] 8. The reinforcement mounting plate installed on the floor beam can enhance the strength of the floor beam. After one end of the reinforcement mounting plate is folded over, it is diagonally braced and fixed to the side sealing plate of the beam, which can enhance the strength in the X and Y directions and distribute the load to the side of the floor beam.

[0045] 9. The suspended body structure of the present invention can be applied to the water tank column to connect the vehicle frame, which has higher versatility. The nut box can be fixed to the inner wall of the water tank column to transfer the load, and the support base can be used as the bottom support pipe of the water tank column to improve the installation strength of the water tank column.

[0046] 10. The rear connecting plate can be used to install the inner corner plate of the pillar, the inner reinforcing plate of the pillar, and the outer reinforcing plate of the pillar to form a beam-type pillar that supports the vehicle body. It can be directly fixed to the vehicle body to support the vehicle body.

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

[0048] The vehicle body mounting structure of the present invention forms a movable chamber by connecting multiple limiting side plates with a reinforcing base plate and a Z-direction limiting plate. This allows the nut assembly to move and adjust its position in the X and Y directions within the movable chamber to absorb vehicle tolerances. At the same time, the limiting side plates restrict the rotation of the nut assembly during bolting, and the Z-direction limiting plate allows the nut assembly to move in the Z direction during bolting. Combined with the support tube and support base, this provides higher strength to the mounting point. Attached Figure Description

[0049] Figure 1 : A schematic diagram of the suspension mounting 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 suspended installation structure connecting the floor beam;

[0052] Figure 4 :for Figure 3 Enlarged structural diagram of the suspension mounting point;

[0053] Figure 5 : Exploded structural diagram of the suspended installation structure connecting the floor beam;

[0054] Figure 6 : sectional view of the suspension mounting structure connecting the floor cross beam;

[0055] Figure 7 : structural view of the reinforcing mounting plate;

[0056] Figure 8 : structural view of the beam-type support column of the floor cross beam;

[0057] Figure 9 : structural view of the suspension mounting structure connecting the vehicle frame;

[0058] Figure 10 : structural view of the suspension mounting structure connecting the water tank stand column;

[0059] Figure 11 : exploded structural view of the suspension mounting structure connecting the water tank stand column;

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

[0061] Embodiments of the present application are described below in detail, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below are exemplary, the accompanying drawings are not drawn to scale, and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0062] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0063] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

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

[0065] This invention relates to a vehicle body suspension mounting structure, which forms a movable chamber by connecting multiple limiting side plates 7 with a reinforcing base plate 13 and a Z-direction limiting plate 11. This allows the nut assembly 12 to move and adjust its position in the X and Y directions within the movable chamber to absorb vehicle tolerances. At the same time, the limiting side plates 7 can restrict the rotation of the nut assembly 12 during bolting, and the Z-direction limiting plate 11 can allow the nut assembly 12 to move in the Z direction during bolting. In conjunction with the support tube 16 and the support base 17, the strength of the suspension mounting point can be enhanced, solving the problem of the nut needing movable space to adjust its position to address installation tolerances and preventing rotation and Z-direction movement during bolting.

[0066] Example 1

[0067] A vehicle body suspension mounting structure is provided for connection and strength enhancement on a connected component, wherein the connected component refers to the part used for suspension bolting, including the vehicle body, frame, or components mounted thereon. Figures 1-9 As shown, the assembly includes a nut box 5, a support tube 16, and a support base 17. The nut box 5 includes a reinforced base plate 13 with a bottom plate through-hole, a Z-direction limiting plate 11, and multiple limiting side plates 7 that connect the reinforced base plate 13 and the Z-direction limiting plate 11 to form a movable chamber for accommodating the nut assembly 12. The movable chamber is used to provide the nut assembly 12 with movement space in the X and Y directions to absorb vehicle tolerances. At least one limiting side plate 7 abuts against and restricts the rotation of the nut assembly 12 when it is bolted on. The support tube 16 is located on one side of the reinforced base plate 13 corresponding to the bottom plate through-hole and can support the nut box 5. The support base 17 is located at the bottom of the support tube 16 and supports the support tube 16 in the Z direction. The multiple limiting side plates 7 include two limiting side plates 7 arranged at intervals opposite each other. The distance between the two opposing limiting side plates 7 is greater than the sum of the length of the nut assembly 12 in the opposing direction and twice the vehicle tolerance. This allows the nut assembly 12 to be moved to both ends in the opposing direction to adjust its position and absorb the vehicle tolerance, thus achieving installation. The multiple limiting side plates 7 can be integrally formed with the reinforcing base plate 13 or the Z-direction limiting plate 11. The nut box 5, support tube 16, and support base 17 increase the Z-direction strength of the suspension mounting point. In use, the suspension mounting structure is set on one side of the suspension mounting point of the body or frame 20, and the body and frame 20 are fastened together using bolts 21 and body suspension 18.

[0068] In some embodiments, as shown in Figure 1 The nut assembly 12 includes a nut and a nut plate fixed to the bottom end of the nut, which is translated in the active chamber to adjust the position to absorb the tolerance of the bolt 21, and the nut plate is limited by the limiting side plate 7 after rotating a certain angle during the bolt connection, so as to realize the bolt connection; gaps are provided between adjacent limiting side plates 7, and through holes are provided on the Z-direction limiting plate 11 for the protrusion of the bolt 21.

[0069] In some embodiments, as shown in Figures 3-6 The reinforcing bottom plate 13 and the support pipe 16 are respectively arranged on the upper and lower sides of the connected component to reinforce the suspension mounting point strength of the connected component; preferably, the suspension mounting structure further includes a reinforcing ring, which is sleeved outside the support pipe 16 to support the connected component, thereby further reinforcing the mounting strength of the connected component.

[0070] In some embodiments, as shown in Figure 1 The support pipe 16 includes a conical table formed by radial expansion at the lower end, and the support pipe 16 can be a conical table structure or can be formed by combining a circular pipe segment and a conical table, which is not limited here; the reinforcing ring includes a reinforcing flange 8 formed by folding the end (one end or both ends in the Z direction), which is flush with the end face of the support pipe 16 when the reinforcing ring is sleeved outside the support pipe 16, and can be flatly supported on the reinforcing bottom plate 13 of the nut box 5 or the connected component; preferably, the reinforcing ring is sleeved outside the support pipe 16.

[0071] When applied to the floor cross beam 1, that is, the connected component is the floor cross beam 1, the vehicle body is connected to the frame through the cross beam floor 1, as shown in Figures 5-6 The reinforcing ring is sleeved outside the support pipe 16 to support the floor cross beam 1 through the reinforcing flange 8. The conical table structure can improve the anti-rollover ability of the suspension mounting point and maintain the transmission of the load in the Z direction; the reinforcing flange 8 of the reinforcing ring increases the contact area with the floor cross beam 1 and improves the support strength.

[0072] Based on the support pipe 16 including a conical table formed by radial expansion at the lower end, as shown in Figure 1 The reinforcing ring includes a first half ring 14 and a second half ring 15, both of which extend to the upper and lower ends along the outer circumferential surface of the support pipe 16 and form reinforcing flanges 8 at the two ends. Due to the conical table structure of the lower end of the support pipe 16, the reinforcing ring cannot be sleeved on the support pipe 16 from the bottom to the top, and 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 reinforcing ring adopts the first half ring 14 and the second half ring 15, which can be fixedly sleeved on the support pipe 16 after the support pipe 16 is fixedly connected to the connected component, and supports the nut box 5 or the frame 20 or the vehicle body, as shown in Figure 6As shown, for example, the support tube 16 supports the floor beam 1, the first half ring 14 and the second half ring 15 are fixedly connected to form a fitting sleeve outside the support tube 16, and are welded and connected to the support tube 16 through the reinforcing flaps 8 and support the floor beam 1.

[0073] In some embodiments, the support base 17 is further illustrated as shown in Figure 1 、 Figures 5-6 The support base 17 includes a base side plate extending to one side of the nut box 5 and a base flap 171 folded on the base side plate, and the base flap 171 abuts against the support tube 16 when the support base 17 supports the support tube 16. When applied to the floor beam 1, the base flap 171 abuts against the support tube 16 when the support base 17 supports the support tube 16, and the base flap 171 can increase the contact area with the floor beam 1, and form a multi-layer cavity beam structure for the suspended mounting point of the floor beam 1, so that the strength is greater.

[0074] In some embodiments, as shown in Figures 5-6 The suspended mounting structure is applied to the floor beam 1, and the floor beam 1 is provided with a beam through hole, and the floor beam 1 is provided with a reinforcing base 6 on one side for supporting the support base 17.

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

[0076] In some embodiments, as shown in Figures 5-7 The suspended mounting structure of the present application further includes a reinforcing mounting plate 2 for mounting the nut box 5 and diagonally supporting the beam side sealing plate 4, and transferring the load to the side wall of the floor beam 1, and the reinforcing mounting plate 2 obliquely supports the beam side sealing plate 4 to enhance the strength of the floor beam 1 in the X direction, the Y direction and the Z direction.

[0077] The suspension mounting structure further comprises a reinforcing mounting plate 2, as shown in Figures 5-7 The reinforcing mounting plate 2 is provided with mounting through holes, and the bottom plate through holes of the nut box 5 are fixedly arranged on the reinforcing mounting plate 2 corresponding to the mounting through holes; when applied to the floor beam 1, the reinforcing 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 side cover plate 4 of the beam, so as to enhance the strength of the suspension mounting point in the X direction and the Y direction, and to disperse and transmit the load to the side wall of the floor beam 1.

[0078] In some embodiments, as shown in Figure 6 The reinforcing mounting plate 2 is folded upward and provided with a mounting plate flap abutting the side cover plate 4 of the beam, and the reinforcing mounting plate 2 and the reinforcing bottom support 6 are arranged on both sides of the floor beam 1 and fixedly connected to the side cover plate 4 of the beam through the mounting plate flap and the outer flap 61, so as to form a cavity, that is, the suspension mounting point is reinforced into a cavity beam structure, which has higher strength and better anti-tilting performance, and can disperse and transmit the load to the side wall of the floor beam 1 through the reinforcing mounting plate 2 and the reinforcing bottom support 6.

[0079] The nut box 5, the support pipe 16 and the support bottom support 17 can be arranged corresponding to the suspension mounting point of the vehicle body or frame 20 to be connected, and are not limited to be used on the floor beam 1; the additional reinforcing ring, reinforcing mounting plate 2 and reinforcing bottom support 6 are also not limited to be used on the floor beam 1, for example, when the reinforcing bottom support 6 is applied to the frame 20, the inner flap 61 and the outer flap 62 of the reinforcing bottom support 6 are supported and abutted against the frame 20.

[0080] Based on the floor beam 1 provided with the reinforcing mounting plate 2, as shown in Figures 3-5 The end of the floor beam 1 (beam floor) is fixedly provided with an upwardly extending rear wall connecting plate 3, the rear wall connecting plate 3 abuts the reinforcing mounting plate 2 and the beam side cover plate 4 to connect and close the cavity of the floor beam 1; the rear wall connecting plate 3 is provided with a positioning hole and a bumper mounting hole for fixed mounting. The split rear wall connecting plate 3 is convenient for manufacturing and forming, and is convenient for separately opening holes in the rear wall connecting plate 3 and bending to adapt to installation. The rear wall connecting plate 3 is connected with the side cover plate 4 to close the side wall and the rear wall of the cavity of the floor beam 1. During installation, the rear wall connecting plate 3 is fixed through the positioning hole, and then welded and connected to the beam side cover plate 4 and the floor beam 1, which is convenient for production forming and installation.

[0081] Based on the end of the floor beam 1 being fixedly provided with the upwardly extending rear wall connecting plate 3, as shown in Figure 8As shown, the suspension mounting structure also includes a pillar inner plate corner plate 22, a pillar inner reinforcing plate 25 and a pillar outer reinforcing plate 23 disposed on the rear connecting plate 3. The two ends of the pillar inner plate corner plate 22 are respectively connected to the pillar inner reinforcing plate 25 and the pillar outer reinforcing plate 23 to form a beam-shaped pillar supporting the vehicle body. The beam-shaped pillar can be directly fixed to the vehicle body to support the vehicle body. The pillar outer reinforcing plate 23 is connected to the upper end of the crossbeam side sealing plate 4. Preferably, a support rib plate 24 is fixedly connected to the rear connecting plate 3 to connect the pillar outer reinforcing plate 23, for supporting the pillar outer reinforcing plate 23 in the Y direction.

[0082] Based on the beam-shaped support formed on the floor beam 1, such as Figure 8 As shown, a support rib 24 is fixed to the rear connecting plate 3, which is used to support the outer reinforcing plate 23 of the connecting column in the Y direction and to support the front and rear connecting plates 3 of the floor beam 1 in the X direction, thereby improving the strength of the floor beam 1.

[0083] When this suspension mounting structure is applied to the floor crossbeam 1 and connected to the frame 20, such as Figure 9 As shown, the top surface of the floor beam 1 is provided with a reinforcing mounting plate 2 and a nut box 5, and the bottom surface is welded with a support tube 16. A reinforcing ring is fitted over the support tube 16 to support the support tube 16, and a reinforcing base 6 supports the support base 17. The inner flap 61 on the inner side of the reinforcing base 6 is welded to the floor beam 1, and the outer flap 62 is welded to the side sealing plate 4 of the beam. The reinforcing base 6 is supported on the vehicle body suspension 18, and the vehicle body suspension 18 is supported on the frame suspension mounting bracket 19. Bolts 21 pass through the frame suspension mounting bracket 19, the vehicle body suspension 18, the reinforcing base 6, the support base 17, the reinforcing mounting plate 2 of the floor beam 1, and the reinforcing base plate 13 in sequence and are bolted to nuts. This suspension mounting structure can be symmetrically arranged at both ends of the floor beam 1 to connect to the frame 20. The single-layer floor beam 1 base plate is upgraded to a multi-layer reinforced structure, which makes the suspension installation point of the floor beam 1 stronger. The load can be transferred to the side and rear panels near the suspension installation point. The end of the base beam can be used as the suspension installation point directly, without the need for additional suspension installation brackets.

[0084] In actual use, the limiting side plate 7 is integrally formed with the Z-direction limiting plate 11, a plurality of limiting side plates 7 form a rectangular structure, the spacing between the opposite 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 vehicle tolerance, the plurality of limiting side plates 7 are welded to the reinforcing bottom plate 13, the reinforcing bottom plate 13 is welded to the reinforcing mounting plate 2, the reinforcing mounting plate 2 is welded to the rear wall connecting plate 3 and the floor cross beam 1 (cross beam bottom plate) and the side wall, the support pipe 16 is welded to the side of the floor cross beam 1 corresponding to the cross beam through hole, the first half ring 14 and the second half ring 15 are welded or bolted to form a reinforcing ring, the reinforcing flange 8 of the reinforcing ring is welded to the floor cross beam 1, the support base 17 is welded to the floor cross beam 1, the inner side end of the reinforcing base 6 is adapted to fit the support base 17 and is welded to the floor cross beam 1 or the inner side flange 61, the outer side end is abutted and welded to the cross beam side sealing plate 4 through the outer side flange 62; during installation, the through holes of each component are correspondingly connected and suitable for bolt 21 to pass through and be bolted to the nut; the rear wall connecting plate 3, the support column inner reinforcing plate 25, the support column outer reinforcing plate 23 and the support column inner plate corner plate 22 form a beam type support column for supporting the vehicle body, which can be used for directly connecting and supporting the vehicle body.

[0085] Embodiment 2

[0086] The suspension mounting structure of the present embodiment is applied to the water tank column 9 connected to the vehicle body, that is, the connected member is the water tank column 9, and the water tank column 9 is connected to the frame 20 through the suspension mounting structure, as shown in Figures 10-11 The water tank column 9 includes a column side sealing plate 10 for closing after the suspension mounting structure is mounted on the water tank column 9; the support base 17 is fixedly arranged at the bottom end of the water tank column 9, the support base 17 is provided with a base through hole, and the support pipe 16 is arranged on the support base 17 to support the nut box 5 corresponding to the base through hole; the nut box 5 is provided with an anti-rotation structure in the cavity of the water tank column 9, which is used to abut against the inner wall of the water tank column 9 to limit the rotation of the nut box 5 during bolting.

[0087] As shown in Figure 11 The anti-rotation structure includes reinforcing side plates arranged on the reinforcing bottom plate 13, which are fixedly arranged on the inner wall of the water tank column 9.

[0088] Preferably, as shown in Figure 11 The outer edge of the reinforcing bottom plate 13 is provided with a plurality of reinforcing side plates corresponding to the inner wall of the water tank column 9, one of which is shorter than the others, and the shorter reinforcing side plate is placed in the water tank column 9 corresponding to one side of the column side sealing plate 10, which facilitates welding of the reinforcing side plate to the inner wall of the water tank column 9 through this side.

[0089] In order to strengthen the strength of the support base 17 connected to the water tank column 9, as shown in Figure 11As shown, the edges of the support base 17 correspond to the side walls of the water tank column 9 and are provided with a plurality of base side plates, which are fixed to the water tank column 9.

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

[0091] Similarly, the suspension mounting structure of the present embodiment can also include a reinforcing ring sleeved outside the support pipe 16; and the support pipe 16 can also include a tapered table structure.

[0092] In actual installation, the support base 17 is welded at the bottom end of the water tank column 9 as a sealing plate, the support pipe 16 is welded on the support base 17 corresponding to the through hole of the base, the shorter reinforcing side plate of the nut box 5 is placed in the water tank column 9 corresponding to the column side sealing plate 10 and abuts against the end face of the support pipe 16, the plurality of reinforcing side plates are welded and connected with 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 is composed 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, and the column side sealing plate 10 is bolted and connected with the water tank column 9. In use, the bottom of the water tank column 9 is placed on the vehicle body suspension 18, and the bolt 21 is sequentially threaded through the vehicle frame suspension mounting bracket 19, the vehicle body suspension 18, the support base 17, the support pipe 16, the reinforcing bottom plate 13, and the nut assembly for bolted connection.

[0093] Embodiment 3

[0094] Another aspect of the present application also provides a mounting method of a vehicle body suspension mounting structure, which is used for mounting the vehicle body suspension mounting structure provided by the present application, and the mounting method comprises,

[0095] S1, the nut assembly 12 is placed on the reinforcing bottom plate 13 corresponding to the through hole of the bottom plate; a plurality of limiting side plates 7 and Z-direction limiting plates 11 are welded and connected on the reinforcing bottom plate 13 to form a movable cavity for accommodating the nut assembly 12;

[0096] S2, the reinforcing bottom plate 13 and the support pipe 16 are respectively welded on both sides of the floor cross beam 1 corresponding to the through hole of the cross beam;

[0097] S3, the reinforcing ring is sleeved outside the support pipe 16 to support the floor cross beam 1;

[0098] S4, the support base 17 is arranged at the bottom end of the support pipe 16 and is welded on the floor cross beam 1.

[0099] According to the mounting method of the vehicle body suspension mounting structure provided by the present application, in the S1 step, a plurality of limiting side plates 7 and Z-direction limiting plates 11 are welded and connected on the reinforcing bottom plate 13 to form a movable cavity for accommodating the nut assembly 12, which comprises

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

[0101] According to the mounting method of the vehicle body suspension mounting structure provided by the application, in the step S3, the reinforcing ring is arranged outside the support pipe 16 to support the floor beam 1, which comprises the following steps.

[0102] S31, after the support pipe 16 is welded to the floor beam 1 corresponding to the beam through hole, the first half ring 14 and the second half ring 15 are arranged outside the support pipe 16 to form a reinforcing ring by welding or bolting, and the reinforcing flaps 8 of the reinforcing ring are welded to the floor beam 1.

[0103] According to the mounting method of the vehicle body suspension mounting structure provided by the application, the mounting method further comprises the following steps.

[0104] S5, the reinforcing bottom support 6 abuts against the support bottom support 17, the inner side flaps 61 are welded to the floor beam 1, and the outer side flaps 62 are welded to the beam side sealing plate 4.

[0105] S6, the rear wall connecting plate 3 is welded to the floor beam 1, the reinforcing mounting plate 2 is welded to the floor beam 1 corresponding to the beam through hole, and one end of the reinforcing mounting plate 2 is welded to the beam side sealing plate 4.

[0106] In actual installation, the limiting side plates 7 can be formed by symmetrically bending the Z-direction limiting plate 11, so that the interval of the limiting side plates 7 is greater than the sum of the length of the nut assembly 12 in the opposite direction and twice the vehicle tolerance; the nut and the nut plate are welded to form the nut assembly 12; the nut assembly 12 is arranged between the limiting side plates 7, the limiting side plates 7 and the reinforcing bottom plate 13 are welded to form the nut box 5; the reinforcing bottom plate 13 and the support pipe 16 are respectively welded to the upper and lower sides of the floor beam 1 corresponding to the beam through hole, then the first half ring 14 and the second half ring 15 are arranged outside the support pipe 16 to form a reinforcing ring by welding or bolting, and the reinforcing flaps 8 of the reinforcing ring are welded to the floor beam 1; the support bottom support 17 is arranged at the bottom end of the support pipe 16, and the bottom support flaps 171 are welded to the floor beam 1; the inner side of the reinforcing bottom support 6 abuts against the side of the support bottom support 17, and the inner side flaps 61 are welded to the floor beam 1 and the outer side flaps 62 are welded to the beam side sealing plate 4; the rear wall connecting plate 3 is welded to the floor beam 1, the reinforcing mounting plate 2 is welded to the floor beam 1 corresponding to the beam through hole, and one end of the reinforcing mounting plate 2 is welded to the beam side sealing plate 4.

[0107] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A vehicle body suspension mounting structure for mounting on a connected component, characterized in that: include, Nut box (5), the nut box (5) includes a reinforcing base plate (13) with a through hole in the base plate, a Z-direction limiting plate (11) and multiple limiting side plates (7) that connect the reinforcing base plate (13) and the Z-direction limiting plate (11) to form a movable chamber for accommodating the nut assembly (12). The movable chamber is used to provide the nut assembly (12) with the X and Y directions to absorb the vehicle tolerance. At least one limiting side plate (7) abuts against and restricts the rotation of the nut assembly (12) when the nut assembly (12) is bolted. Support tube (16), the support tube (16) is provided on one side of the reinforcing base plate (13) with the corresponding bottom plate through hole; Support base (17) is located at the bottom of support tube (16) and supports support tube (16) in the Z direction. The connected component includes a floor beam (1) with a crossbeam through hole; a reinforcing base (6) for supporting a support base (17) is fixed on one side of the floor beam (1); the floor beam (1) includes a crossbeam side sealing plate (4) extending downward at the end; an inner flap (61) for supporting the floor beam (1) is provided on one side of the reinforcing base (6) along the bottom surface of the support base (17), and an outer flap (61) for fitting the crossbeam side sealing plate (4) extends outward on the other side. 62); A reinforcing mounting plate (2) is fixed on the floor beam (1) for installing the nut box (5) and diagonally bracing and fixing the beam side sealing plate (4); The reinforcing mounting plate (2) is set on the floor beam (1) with the beam through hole corresponding to the beam, and one end is folded at an angle to support the beam side sealing plate (4); The reinforcing mounting plate (2) and the reinforcing base (6) are set on both sides of the floor beam (1) and are fixed to the beam side sealing plate (4) through the mounting plate flip plate and the outer flip plate (62) to form a cavity.

2. The vehicle body mounting structure as described in claim 1, characterized in that: It also includes a reinforcing ring, wherein the reinforcing base plate (13) and the support tube (16) are respectively provided on both sides of the connected component; the reinforcing ring is sleeved outside the support tube (16) to support the connected component.

3. The vehicle body mounting structure as described in claim 2, characterized in that: The support tube (16) includes a conical platform formed by radial expansion at the lower end; the reinforcing ring includes a reinforcing flap (8) formed by folding at the end, and the reinforcing ring is fitted and sleeved on the outside of the support tube (16) to support the connected parts through the reinforcing flap (8).

4. The vehicle body mounting structure as described in claim 3, characterized in that: The reinforcing ring includes a first half-ring (14) and a second half-ring (15). Both the first half-ring (14) and the second half-ring (15) extend along the outer periphery of the support tube (16) to the upper and lower ends and form reinforcing flaps (8) at both ends.

5. A vehicle body mounting structure as described in any one of claims 2-4, characterized in that: The supporting base (17) includes a base side plate extending toward the nut box (5) and a base flap (171) formed by folding on the base side plate; when the supporting base (17) supports the supporting tube (16), the base flap (171) and the supporting tube (16) abut against the connected parts.

6. The vehicle body mounting structure as described in claim 5, characterized in that: The reinforcing mounting plate (2) is provided with mounting holes, and the nut box (5) is fixed on the reinforcing mounting plate (2) corresponding to the mounting holes.

7. A method for installing a vehicle body suspension mounting structure, characterized in that: For installing the vehicle body mounting structure as described in any one of claims 2-6, the installation method includes... Place the nut assembly (12) on the reinforcing base plate (13) through the corresponding hole in the base plate; weld and connect multiple limiting side plates (7) and Z-direction limiting plates (11) on the reinforcing base plate (13) to form a movable chamber for accommodating the nut assembly (12); The reinforcing base plate (13) and the support pipe (16) are welded to the two sides of the floor beam (1) respectively, corresponding to the through holes of the beam; The reinforcing ring is fitted outside the support pipe (16) to support the floor beam (1); The support base (17) is placed at the bottom end of the support tube (16) and welded to the floor beam (1).

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