Frame casting cross beam

Abstract

The utility model discloses a frame casting cross beam, and relates to the technical field of frames. The vehicle frame casting cross beam comprises a cross beam body with the cross section in an n shape and two connecting flanges, the cross beam body comprises first straight sections, two inclined sections and two second straight sections, the first straight sections and the second straight sections are arranged in parallel up and down, and the cross section of the cross beam body is in an n shape. The first straight section is located between the two second straight sections, and the two inclined sections are connected between the first straight section and the corresponding second straight sections respectively. The two connecting flanges are connected to the ends of the two second straight sections respectively. According to the frame casting cross beam, the number of parts is reduced, the strength and the rigidity are improved, the frame casting cross beam has the advantages of being light in weight and high in strength, the balance stability of a whole frame is guaranteed, the performance of the whole frame is improved, and cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle frames, in particular to a casting cross beam of a vehicle frame. Background Art

[0002] The frame of a car is generally composed of longitudinal beams and cross beams, among which the cross beams are used to ensure the torsional rigidity of the frame and bear the longitudinal load. Therefore, the structural strength and rigidity of the cross beams are very important to the stability of the entire vehicle structure.

[0003] Existing crossbeams are generally made of hot-rolled steel plate stamping parts connected by rivets or bolts. Since the hot-rolled steel plate has poor bending and torsion resistance, it is difficult to bear the weight of the vehicle body under heavy load. Therefore, the crossbeam of this structure directly affects the balance and stability of the entire frame, reducing the performance of the entire vehicle. In addition, the crossbeam of this structure has a large number of parts and is heavy, and the assembly workload is large, which not only leads to a long production cycle but also increases production costs. Utility Model Content

[0004] In view of the above defects in the prior art, the utility model provides a frame casting cross beam, which reduces the number of parts, improves strength and rigidity, has the advantages of light weight and high strength, ensures the balance and stability of the entire frame, improves the performance of the vehicle, and reduces costs.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A frame casting crossbeam, including a crossbeam body with a "J"-shaped cross section and two connecting flanges, the crossbeam body including a first straight section, an inclined section and a second straight section, two inclined sections and two second straight sections are provided, the first straight section and the second straight section are arranged parallel to each other up and down, and the first straight section is located between the two second straight sections, the two inclined sections are respectively connected between the first straight section and the corresponding second straight section; the two connecting flanges are respectively connected to the ends of the two second straight sections.

[0007] Among them, the first straight section includes a first straight section top plate, a first straight section side plate and a first straight section bottom plate, two of the first straight section side plates and two of the first straight section bottom plates are provided, the first straight section top plate and the first straight section bottom plate are arranged parallel to each other up and down, and the first straight section top plate is located between the two first straight section bottom plates, and the two first straight section side plates are respectively connected between the first straight section top plate and the corresponding first straight section bottom plate.

[0008] Wherein, the inclined section includes an inclined section top plate, an inclined section side plate and an inclined section bottom plate, and two of the inclined section side plates and the inclined section bottom plate are each provided, the inclined section top plate and the inclined section bottom plate are arranged parallel to each other up and down, and the inclined section top plate is located between the two inclined section bottom plates, and the two inclined section side plates are respectively connected between the inclined section top plate and the corresponding inclined section bottom plates; the inclined section top plate is aligned and connected with the first straight section top plate, the two inclined section side plates are respectively aligned and connected with the two first straight section side plates, and the two inclined section bottom plates are respectively aligned and connected with the two first straight section bottom plates.

[0009] Among them, the second straight section includes a second straight section top plate, a second straight section side plate and a second straight section bottom plate, two of the second straight section side plates and the second straight section bottom plate are each provided, the second straight section top plate and the second straight section bottom plate are arranged parallel to each other up and down, and the second straight section top plate is located between the two second straight section bottom plates, and the two second straight section side plates are respectively connected between the second straight section top plate and the corresponding second straight section bottom plates; the second straight section top plate is aligned and connected with the inclined section top plate, the two second straight section side plates are respectively aligned and connected with the two inclined section side plates, and the two second straight section bottom plates are respectively aligned and connected with the two inclined section bottom plates.

[0010] Wherein, the height of the inclined section side plate increases gradually from an end close to the first straight section side plate to an end close to the second straight section side plate.

[0011] Wherein, the width of the inclined section bottom plate increases gradually from an end close to the first straight section bottom plate to an end close to the second straight section bottom plate.

[0012] Wherein, the width of the second straight section bottom plate increases gradually from an end close to the inclined section bottom plate to an end close to the connecting flange.

[0013] Among them, the connecting flange is also in the shape of a "J", including a flange upper plate, a flange side plate and a flange lower plate. The flange side plates and the flange lower plates are each provided with two, the flange upper plate and the flange lower plate are arranged up and down, and the flange upper plate is located between the two flange lower plates, and the two flange side plates are respectively connected between the flange upper plate and the corresponding flange lower plates; the flange upper plate is vertically connected to the second straight section top plate, the two flange side plates are respectively vertically connected to the two second straight section side plates, and the two flange lower plates are respectively vertically connected to the two second straight section bottom plates.

[0014] Wherein, a weight-reducing structure is arranged on the inner side of the crossbeam body.

[0015] Wherein, a reinforcing rib structure is arranged on the inner side of the crossbeam body.

[0016] By adopting the above technical solution, the beneficial effects of the utility model are:

[0017] 1. Due to the use of an integrally formed casting structure for the casting crossbeam of the frame of the present utility model, the number of parts and the assembly workload are greatly reduced, lightweight production is achieved, the production cycle is shortened, and the production cost is reduced;

[0018] 2. For the casting crossbeam of the frame of the present utility model, since the crossbeam main body is formed by connecting a first straight section, two inclined sections and two second straight sections, the first straight section and the second straight section are arranged parallel up and down, the first straight section is located between the two second straight sections, and the two inclined sections are respectively connected between the first straight section and the corresponding second straight section, making the entire crossbeam main body in an arched shape. While enhancing the bending strength in the middle of the crossbeam main body, the performance of resisting torsional deformation at both ends of the crossbeam main body is also enhanced. Therefore, the structural strength and stiffness of the entire casting crossbeam of the frame are greatly improved, the balance and stability of the entire frame are ensured, and the performance of the whole vehicle is improved;

[0019] 3. For the casting crossbeam of the frame of the present utility model, since the cross-section of the crossbeam main body is designed as a "ji" shape, during casting, there is no need to set up a sand core, and it can be formed only by the combination of the upper mold and the lower mold. Therefore, the casting process is simplified and the production cost is further reduced.

[0020] In summary, the casting crossbeam of the frame of the present utility model reduces the number of parts, improves the strength and stiffness, has the advantages of lightweight and high strength, and reduces the production cost. Description of the Drawings

[0021] Figure 1 is a side view of the casting crossbeam of the frame of the present utility model;

[0022] Figure 2 is an axonometric view of the casting crossbeam of the frame of the present utility model;

[0023] Figure 3 is Figure 2 a structural schematic diagram of the other side;

[0024] In the figure: 1. First straight section; 11. First straight section top plate; 12. First straight section side plate; 13. First straight section bottom plate; 2. Inclined section; 21. Inclined section top plate; 22. Inclined section side plate; 23. Inclined section bottom plate; 3. Second straight section; 31. Second straight section top plate; 32. Second straight section side plate; 33. Second straight section bottom plate; 4. Connecting flange; 41. Flange upper plate; 42. Flange side plate; 43. Flange lower plate; 44. First installation groove; 45. Second installation groove; 46. Third installation groove; 5. Weight reduction groove; 6. First reinforcing rib structure; 7. Second reinforcing rib structure. Detailed Embodiment

[0025] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] like Figures 1 to 3 As shown, this embodiment discloses a frame casting crossbeam, including a crossbeam body with a "J"-shaped cross section and two connecting flanges 4, the crossbeam body includes a first straight section 1, an inclined section 2 and a second straight section 3, two inclined sections 2 and two second straight sections 3 are provided, the first straight section 1 and the second straight section 3 are arranged in parallel up and down, and the first straight section 1 is located between the two second straight sections 3, the two inclined sections 2 are respectively connected between the first straight section 1 and the corresponding second straight section 3; the two connecting flanges 4 are respectively connected to the ends of the two second straight sections 3.

[0027] The frame casting crossbeam in this embodiment has a crossbeam body formed by connecting a first straight section 1, two inclined sections 2 and two second straight sections 3. The first straight section 1 and the second straight section 3 are arranged in parallel up and down, the first straight section 1 is located between the two second straight sections 3, and the two inclined sections 2 are respectively connected between the first straight section 1 and the corresponding second straight sections 3, so that the entire crossbeam body is arched. While enhancing the bending strength of the middle part of the crossbeam body, the torsional deformation resistance of the two ends of the crossbeam body is also enhanced. Therefore, the structural strength and rigidity of the entire frame casting crossbeam are greatly improved, the balance and stability of the entire frame are ensured, and the performance of the whole vehicle is improved; due to the use of an integrated casting structure, the number of parts and the assembly workload are greatly reduced, lightweight production is achieved, the production cycle is shortened, and the production cost is reduced; since the cross section of the crossbeam body is designed to be in the shape of a "J", there is no need to set a sand core during casting, and it can be cast by combining the upper mold and the lower mold, thereby simplifying the casting process and further reducing the production cost.

[0028] The first straight section 1 in this embodiment includes a first straight section top plate 11, a first straight section side plate 12 and a first straight section bottom plate 13. Two first straight section side plates 12 and two first straight section bottom plates 13 are provided. The first straight section top plate 11 and the first straight section bottom plate 13 are provided in parallel up and down, and the first straight section top plate 11 is located between the two first straight section bottom plates 13. The two first straight section side plates 12 are respectively connected between the first straight section top plate 11 and the corresponding first straight section bottom plates 13. Such a configuration ensures the strength and rigidity of the first straight section 1.

[0029] The inclined section 2 in this embodiment includes an inclined section top plate 21, an inclined section side plate 22 and an inclined section bottom plate 23. Two inclined section side plates 22 and two inclined section bottom plates 23 are provided. The inclined section top plate 21 and the inclined section bottom plate 23 are provided in parallel up and down, and the inclined section top plate 21 is located between the two inclined section bottom plates 23. The two inclined section side plates 22 are respectively connected between the inclined section top plate 21 and the corresponding inclined section bottom plates 23. The inclined section top plate 21 is aligned and connected with the first straight section top plate 11, the two inclined section side plates 22 are respectively aligned and connected with the two first straight section side plates 12, and the two inclined section bottom plates 23 are respectively aligned and connected with the two first straight section bottom plates 13. Such an arrangement ensures the strength and rigidity of the inclined section 2.

[0030] In this embodiment, the angle a between the inclined section 2 and the horizontal line is 10-20°, that is, the inclined section 2 is inclined downward by 10-20°. In this embodiment, the preferred angle a is 15°.

[0031] In order to further ensure the strength and rigidity of the inclined section 2 , in this embodiment, the height of the inclined section side plate 22 preferably increases from the end close to the first straight section side plate 12 to the end close to the second straight section side plate 32 .

[0032] In order to further ensure the strength and rigidity of the inclined section 2 , in this embodiment, the width of the inclined section bottom plate 23 preferably increases from the end close to the first straight section bottom plate 13 to the end close to the second straight section bottom plate 33 .

[0033] The second straight section 3 in this embodiment includes a second straight section top plate 31, a second straight section side plate 32 and a second straight section bottom plate 33. Two second straight section side plates 32 and second straight section bottom plates 33 are provided. The second straight section top plate 31 and the second straight section bottom plates 33 are arranged in parallel up and down, and the second straight section top plate 31 is located between the two second straight section bottom plates 33. The two second straight section side plates 32 are respectively connected between the second straight section top plate 31 and the corresponding second straight section bottom plates 33. The second straight section top plate 31 is aligned and connected with the inclined section top plate 21, the two second straight section side plates 32 are respectively aligned and connected with the two inclined section side plates 22, and the two second straight section bottom plates 33 are respectively aligned and connected with the two inclined section bottom plates 23. Such an arrangement ensures the strength and rigidity of the second straight section 3.

[0034] In order to further ensure the strength and rigidity of the second straight section 3 , in this embodiment, the width of the second straight section bottom plate 33 preferably increases gradually from the end close to the inclined section bottom plate 23 to the end close to the connecting flange 4 .

[0035] In this embodiment, all corners of the crossbeam body are rounded. This arrangement not only avoids stress concentration, but also improves the flow of liquid during casting and facilitates demoulding. At the same time, the rounded corners also make the crossbeam body more beautiful.

[0036] In this embodiment, the wall thickness of the beam body is uniform, ranging from 8 to 10 mm, and preferably 8 mm. This arrangement improves material utilization.

[0037] In order to reduce the weight of the cross beam body, a weight reduction structure is provided on the inner side of the cross beam body in this embodiment.

[0038] Specifically, the weight-reducing structure includes two weight-reducing grooves 5 . Since the second straight section 3 is subjected to less force than the first straight section 1 , the two weight-reducing grooves 5 are respectively arranged on the two second straight section top plates 31 in this embodiment.

[0039] In order to further reduce the weight of the cross beam body, in this embodiment, the two weight-reducing grooves 5 are preferably extended to the corresponding inclined section top plates 21 respectively.

[0040] In this embodiment, the depth of the weight-reducing groove 5 ranges from 2 to 3 mm, and is preferably 2 mm. In practical applications, the depth of the weight-reducing groove 5 can be set according to specific circumstances, and this embodiment does not limit this.

[0041] In order to further improve the strength and rigidity of the cross beam body, a reinforcing rib structure is provided on the inner side of the cross beam body in this embodiment.

[0042] The reinforcing rib structure in this embodiment includes a first reinforcing rib structure 6 and two second reinforcing rib structures 7. The two second reinforcing rib structures 7 are symmetrically arranged on both sides of the first reinforcing rib structure 6. The first reinforcing rib structure 6 is arranged between the first straight section top plate 11 and the two first straight section side plates 12. The first reinforcing rib structure 6 is in an "X" shape, and the height of the first reinforcing rib structure 6 increases from its center to the ends close to the two first straight section side plates 12; the second reinforcing rib structure 7 is arranged between the inclined section top plate 21 and the two inclined section side plates 22. The second reinforcing rib structure 7 is in a "K" shape, and the height of the second reinforcing rib structure 7 increases from its center to the ends close to the two inclined section side plates 22.

[0043] In this embodiment, the first reinforcing rib structure 6 and the second reinforcing rib structure 7 have uniform thicknesses, both ranging from 4 to 6 mm. To ensure material utilization, the thicknesses of both are preferably 5 mm.

[0044] The connecting flange 4 in this embodiment is also in a "ji" shape, including a flange upper plate 41, flange side plates 42, and a flange lower plate 43. There are two flange side plates 42 and two flange lower plates 43. The flange upper plate 41 and the flange lower plate 43 are arranged vertically, and the flange upper plate 41 is located between the two flange lower plates 43. The two flange side plates 42 are respectively connected between the flange upper plate 41 and the corresponding flange lower plate 43. The flange upper plate 41 is perpendicularly connected to the second straight section top plate 31, the two flange side plates 42 are respectively perpendicularly connected to the two second straight section side plates 32, and the two flange lower plates 43 are respectively perpendicularly connected to the two second straight section bottom plates 33. With such a setting, both the material utilization rate is improved and the aesthetic effect of the frame casting cross beam is ensured.

[0045] In this embodiment, the side of the connecting flange 4 away from the second straight section 3 is used for fitting and installing with the frame longitudinal beam. On the side of the connecting flange 4 close to the second straight section 3, there is an installation groove structure for preventing interference between the bolt gasket and the connecting flange 4. The installation groove structure includes a first installation groove 44 provided on the flange upper plate 41, a second installation groove 45 provided on the flange side plate 42, and a third installation groove 46 provided on the flange lower plate 43. The flange holes of the connecting flange 4 are arranged in the first installation groove 44, the second installation groove 45, and the third installation groove 46.

[0046] In this embodiment, the connection between the second straight section 3 and the connecting flange 4 also adopts a fillet. With such a setting, both stress concentration is avoided, the flow condition of the liquid during casting is improved and demolding is facilitated, and at the same time, the fillet also makes the frame casting cross beam more beautiful.

[0047] The above is the preferred embodiment of the frame casting cross beam of the present utility model. There are more embodiments not elaborated here. In summary, the frame casting cross beam of the present utility model reduces the number of parts, improves the strength, and has the advantages of light weight and high strength. It not only ensures the balance and stability of the entire frame, improves the performance of the whole vehicle, but also reduces the cost.

[0048] The present utility model is not limited to the above specific embodiments. Various changes made by those of ordinary skill in the art starting from the above concepts without creative labor all fall within the protection scope of the present utility model.

Claims

1. A frame casting crossbeam, characterized in that: It includes a crossbeam body with a "J"-shaped cross section and two connecting flanges. The crossbeam body includes a first straight section, an inclined section and a second straight section. Two inclined sections and two second straight sections are provided. The first straight section and the second straight section are arranged in parallel up and down, and the first straight section is located between the two second straight sections. The two inclined sections are respectively connected between the first straight section and the corresponding second straight section; the two connecting flanges are respectively connected to the ends of the two second straight sections.

2. The frame casting cross beam according to claim 1, characterized in that: The first straight section includes a first straight section top plate, a first straight section side plate and a first straight section bottom plate. Two of the first straight section side plates and two of the first straight section bottom plates are provided. The first straight section top plate and the first straight section bottom plate are provided in parallel up and down, and the first straight section top plate is located between the two first straight section bottom plates. The two first straight section side plates are respectively connected between the first straight section top plate and the corresponding first straight section bottom plate.

3. The frame casting cross beam according to claim 2, characterized in that: The inclined section includes an inclined section top plate, an inclined section side plate and an inclined section bottom plate. Two inclined section side plates and two inclined section bottom plates are each provided. The inclined section top plate is arranged parallel to the inclined section bottom plate up and down, and the inclined section top plate is located between the two inclined section bottom plates. The two inclined section side plates are respectively connected between the inclined section top plate and the corresponding inclined section bottom plates. The inclined section top plate is aligned and connected with the first straight section top plate, the two inclined section side plates are respectively aligned and connected with the two first straight section side plates, and the two inclined section bottom plates are respectively aligned and connected with the two first straight section bottom plates.

4. The frame casting cross beam according to claim 3, characterized in that: The second straight section includes a second straight section top plate, a second straight section side plate and a second straight section bottom plate. Two second straight section side plates and two second straight section bottom plates are each provided. The second straight section top plate and the second straight section bottom plate are arranged parallel to each other up and down, and the second straight section top plate is located between the two second straight section bottom plates. The two second straight section side plates are respectively connected between the second straight section top plate and the corresponding second straight section bottom plates. The second straight section top plate is aligned and connected with the inclined section top plate, the two second straight section side plates are respectively aligned and connected with the two inclined section side plates, and the two second straight section bottom plates are respectively aligned and connected with the two inclined section bottom plates.

5. The frame casting cross beam according to claim 4, characterized in that: The height of the inclined side plate increases gradually from an end close to the first straight side plate to an end close to the second straight side plate.

6. The frame casting cross beam according to claim 4, characterized in that: The width of the inclined bottom plate increases gradually from an end close to the first straight bottom plate to an end close to the second straight bottom plate.

7. The frame casting cross beam according to claim 4, characterized in that: The width of the second straight bottom plate increases gradually from an end close to the inclined bottom plate to an end close to the connecting flange.

8. The frame casting cross beam according to claim 4, characterized in that: The connecting flange is also in a "Ji" shape, including a flange upper plate, flange side plates and a flange lower plate. There are two flange side plates and two flange lower plates. The flange upper plate and the flange lower plate are arranged vertically, and the flange upper plate is located between the two flange lower plates. The two flange side plates are respectively connected between the flange upper plate and the corresponding flange lower plate; the flange upper plate is vertically connected to the second straight section top plate, the two flange side plates are respectively vertically connected to the two second straight section side plates, and the two flange lower plates are respectively vertically connected to the two second straight section bottom plates.

9. The frame casting cross beam according to claim 1, characterized in that: A weight reduction structure is provided inside the crossbeam main body.

10. The frame casting cross beam according to claim 1, characterized in that: A reinforcing rib structure is provided inside the crossbeam main body.

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